CN218867424U

CN218867424U - A kind of interface unit

Info

Publication number: CN218867424U
Application number: CN202223548474.9U
Authority: CN
Inventors: 马二东; 周永恒; 孟建利; 李言训
Original assignee: Dongguan Huabei Electronic Technology Co Ltd
Current assignee: Dongguan Huabei Electronic Technology Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-14
Anticipated expiration: 2032-12-29

Abstract

The embodiment of the application provides a connector, relates to electron technical field, and this connector includes: the flexible printed circuit board comprises a base, a shell and a plurality of large-current terminals, wherein the large-current terminals and the base are fixed on a Printed Circuit Board (PCB) in an interference fit manner, and an installation groove of a flexible printed circuit board (FPC) is formed between the base and the shell; when the FPC is inserted into the mounting groove, each large-current terminal is connected with the FPC through a plurality of first contacts and connected with the PCB through a plurality of second contacts, and at least three conduction paths of the FPC and the PCB are formed between the first contacts and the second contacts. The contacts of the large-current terminal are added, so that the contacts are respectively contacted with the FPC and the PCB, the large-current terminal can form a plurality of conduction paths between the FPC and the PCB, and the current carrying capacity of the connector is improved under the condition that the structure of the connector is not changed.

Description

A kind of interface unit

Technical Field

The present application relates to the field of electronic technology, and more particularly, to a connector.

Background

The Flexible Printed Circuit (FPC) is connected to the Printed Circuit Board (PCB) through a connector, and the connector is suitable for smart phones, flat panels, virtual Reality (VR), augmented Reality (AR), and other devices, where the current carrying capability is an important performance of a miniaturized connector.

How to improve the current carrying capacity of the miniaturized connector is important without increasing the size of the miniaturized connector.

SUMMERY OF THE UTILITY MODEL

In order to promote the current-carrying capacity of miniaturized connector, the utility model provides a following technical scheme:

an embodiment of the present application provides a connector, including:

the high-current terminal comprises a base, a shell and a plurality of high-current terminals, wherein the high-current terminals and the base are fixed on a Printed Circuit Board (PCB) in an interference fit manner, and an installation groove of a Flexible Printed Circuit (FPC) is formed between the base and the shell;

when the FPC is inserted into the mounting groove, each large-current terminal is connected with the FPC through a plurality of first contacts and connected with the PCB through a plurality of second contacts, and at least three conduction paths of the FPC and the PCB are formed between the plurality of first contacts and the plurality of second contacts.

The contacts of the large-current terminal are added, and the contacts are respectively contacted with the FPC and the PCB, so that the large-current terminal can form a plurality of conduction paths between the FPC and the PCB, and the current carrying capacity of the connector is improved under the condition that the structure of the connector is not changed.

Optionally, each high current terminal comprises two first contacts and two second contacts;

the two first contacts are respectively connected with the golden fingers on the FPC, one second contact is in contact with the PAD PAD on the PCB to form a simple beam structure, and the other second contact is welded on the PCB.

Optionally, a first conduction path and a second conduction path of the PCB and the FPC are formed between the two first contacts and the one second contact, respectively, and a third conduction path of the PCB and the FPC is formed between one of the two first contacts and the other second contact.

The simple beam structure that the PAD PAD contact on heavy current terminal and the PCB formed has promoted the stability of first conduction path and second conduction path, and the heavy current terminal can form three conduction path between PCB and FPC, and three conduction path has promoted the current-carrying capacity of this connector.

Optionally, each high-current terminal comprises three first contacts and two second contacts;

the three first contacts are respectively connected with the golden fingers on the FPC, one second contact is in contact with the PAD PAD on the PCB to form a simple beam structure, and the other second contact is welded on the PCB.

Optionally, a first conduction path, a second conduction path and a third conduction path of the PCB and the FPC are formed between the three first contacts and the one second contact, respectively, and a fourth conduction path of the PCB and the FPC is formed between one of the three first contacts and the other second contact.

PAD PAD contact formation simple beam structure on heavy current terminal and the PCB has promoted the stability that first conduction path, second conduction path and third conduction path, and the heavy current terminal can form four conduction paths between PCB and FPC, and four conduction paths have promoted the current-carrying capacity of this connector greatly.

Optionally, the connector further comprises a plurality of signal terminals, and the plurality of signal terminals and the base are fixed on the PCB in an interference fit manner.

Optionally, the signal terminal includes a third contact and two fourth contacts, where the third contact is connected to a gold finger on the FPC, one fourth contact makes contact with a PAD on the PCB to form a simple beam structure, and the other fourth contact is soldered on the PCB.

Optionally, a fifth conduction path between the PCB and the FPC is formed between the third contact and the one fourth contact, and a sixth conduction path between the PCB and the FPC is formed between the third contact and the another fourth contact.

The signal terminal forms simple beam structure with the PAD PAD contact on the PCB, promotes the stability of fifth conduction path, and simultaneously, signal terminal can form two conduction paths between PCB and FPC, has guaranteed the signal transmission's of this connector stability.

Optionally, two latches are fixed to the housing.

Through the hasp design, let FPC can be fixed in the mounting groove in, avoid FPC to drop.

Optionally, the base and the shell are obtained by in-mold composite molding.

Because the base and the shell are formed in an in-mold composite manner, the base and the shell are tightly attached, the overall structure of the connector is more stable, and the strength of the connector is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a connector according to the present invention;

fig. 2A is a schematic structural diagram of a high current terminal provided by the present invention;

fig. 2B is a schematic front view of a connector according to the present invention;

fig. 2C is a schematic top view of a connector according to the present invention;

fig. 2D is a schematic bottom view of a connector according to the present invention;

fig. 2E is a schematic structural diagram of a connector with a housing removed according to the present invention;

fig. 2F is a schematic structural diagram of a high current terminal according to the present invention;

fig. 2G is a schematic structural diagram of a high current terminal provided by the present invention;

fig. 2H is a schematic structural view of the large current terminal contacting the FPC and the PCB provided by the present invention;

fig. 3 is a schematic structural view of the large current terminal contacting with the FPC and the PCB provided by the present invention;

fig. 4A is a schematic structural diagram of a high current terminal provided by the present invention;

fig. 4B is a schematic front view of a connector provided by the present invention;

fig. 4C is a schematic top view of a connector according to the present invention;

fig. 4D is a schematic bottom view of a connector according to the present invention;

fig. 4E is a schematic structural diagram of a connector with a housing removed according to the present invention;

fig. 4F is a schematic structural diagram of a high current terminal according to the present invention;

fig. 4G is a schematic structural diagram of a large current terminal provided by the present invention;

fig. 4H is a schematic structural view of the large current terminal contacting the FPC and the PCB provided by the present invention;

fig. 5 is a schematic structural view of the large current terminal contacting with the FPC and the PCB provided by the present invention;

fig. 6 is a schematic structural diagram of a signal terminal according to the present invention;

fig. 7 is a schematic structural view of the contact between the signal terminal and the FPC and the PCB provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of 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.

Fig. 1 shows a structure of a connector provided by the present invention, which includes: a base 101, a housing 102, a plurality of large current terminals 103, two of which are shown in fig. 1 as an example;

a plurality of large current terminals 103 and a base 101 are fixed on a printed circuit board PCB in an interference fit manner, and a mounting groove 104 of a flexible circuit board FPC is formed between the base 101 and a shell 102; when the FPC is inserted into the mounting groove 104, each of the large current terminals 103 is connected to the FPC by a plurality of first contacts and connected to the PCB by a plurality of second contacts, and at least three conduction paths of the FPC and the PCB are formed between the plurality of first contacts and the plurality of second contacts.

Specifically, soldering the solder tails of the base 101 to the PCB allows the connector to be secured to the PCB. One end of each large-current terminal 103 is welded on the PCB, the large-current terminals 103 are elastic structures, and when the Flexible Printed Circuit (FPC) is not inserted into the mounting groove 104, the large-current terminals 103 penetrate through the terminal holes of the base and can extend into the mounting groove 104; after the FPC is inserted into the mounting groove 104, the large-current terminal 103 is extruded by the FPC to be elastically deformed, a plurality of first contacts of the large-current terminal 103 are respectively contacted with the FPC, a plurality of second contacts of the large-current terminal 103 are respectively contacted with the PCB, and at least three conduction paths are formed between the plurality of first contacts and the plurality of second contacts.

In some embodiments, referring to fig. 1, two latches 105 are secured to the housing 102.

Specifically, after the FPC is inserted into the mounting groove, two latches on the housing 102 are pressed down to fix the FPC in the mounting groove 104.

In some embodiments, the base 101 and the shell 102 are obtained by in-mold composite molding.

Specifically, the shell 102 is provided with a symmetrical opening at each of the left and right sides thereof, the shell 102 is placed in a plastic mold, and the melted plastic enters the plastic mold through the symmetrical opening to form the base 101.

Because the base 101 and the shell 102 are formed in an in-mold composite manner, the base 101 and the shell 102 are tightly attached, the overall structure of the connector is more stable, and the strength of the connector is improved.

In some embodiments, the base 101 and the housing 102 may be fixed in an assembling manner.

In some embodiments, the structure of the high current terminal 103 is shown in fig. 2A, with the connector shown in fig. 2B in front view, fig. 2C in top view, and fig. 2D in bottom view. Fig. 2E is a schematic diagram of the connector with the housing 102 removed.

The structure of the large-current terminal 103 when the FPC is not inserted into the mounting groove 104 is shown in fig. 2F, the large-current terminal 103 extending into the mounting groove 104 between the base 101 and the housing 102; the structure of the large current terminal 103 when the FPC is inserted into the mounting groove 104 is shown in fig. 2G, and at this time, the large current terminal 103 is pressed by the FPC to be elastically deformed, and four contact points of the large current terminal 103 are respectively in contact with the FPC and the PCB. When each of the large-current terminals 103 includes two first contacts 201 and two second contacts 202 as shown in fig. 2H; two first contacts 201 are respectively connected with gold fingers 203 on the FPC, one second contact 202 is contacted with a PAD PAD204 on the PCB to form a simple beam structure, and the other second contact 202 is welded on the PCB.

In some embodiments, as shown in fig. 3, a first conduction path 301 and a second conduction path 302 of the PCB and the FPC are formed between the two first contacts 201 and one second contact 202, respectively, and a third conduction path 303 of the PCB and the FPC is formed between one first contact 201 and the other second contact 202 of the two first contacts 201.

The stability of the first conduction path 301 and the second conduction path 302 is improved by the simple beam structure formed by the contact of the large-current terminal 103 and the PAD PAD204 on the PCB, three conduction paths can be formed between the PCB and the FPC by the large-current terminal 103, and the current carrying capacity of the connector is improved by the three conduction paths.

In some embodiments, the structure of the high current terminal 103 is shown in fig. 4A, with the connector shown in fig. 4B in front view, fig. 4C in top view, and fig. 4D in bottom view. Fig. 4E is a schematic diagram of the connector with the housing 102 removed.

A structural view of the large-current terminal 103 when the FPC is not inserted into the mounting groove 104 is shown in fig. 4F, the large-current terminal 103 protruding into the mounting groove 104 between the base 101 and the housing 102; the structure of the large current terminal 103 when the FPC is inserted into the mounting groove 104 is shown in fig. 4G, where the large current terminal 103 is pressed by the FPC to be elastically deformed, and five contacts of the large current terminal 103 are respectively contacted with the FPC and the PCB. Each large-current terminal 103 includes three first contacts 401 and two second contacts 402 as shown in fig. 4H; three first contacts 401 are respectively connected with the gold fingers 203 on the FPC, one second contact 402 is contacted with the PAD PAD204 on the PCB to form a simple beam structure, and the other second contact 402 is welded on the PCB.

In some embodiments, as shown in fig. 5, a first conductive path 501, a second conductive path 502 and a third conductive path 503 of the PCB and the FPC are respectively formed between the three first contacts 401 and the one second contact 402, and a fourth conductive path 504 of the PCB and the FPC is formed between the one first contact and the other second contact.

The contact of heavy current terminal 103 and PAD PAD204 on the PCB forms simple beam structure, has promoted first conduction path 501, second conduction path 502 and the stability of third conduction path 503, and heavy current terminal 103 can form four conduction paths between PCB and FPC, and four conduction paths have promoted the current-carrying capacity of this connector greatly.

In some embodiments, the connector further includes a plurality of signal terminals 601, the structure of the signal terminals is shown in fig. 6, and the plurality of signal terminals 601 and the base are fixed on the PCB by interference fit.

Specifically, the number of the signal terminals 601 may be set according to actual needs, and is generally 2 to 60. Preferably, the distance between the adjacent large current terminal 103 and the signal terminal 601 fixed on the base is 0.35mm, and the distance between two adjacent signal terminals is 0.35mm.

As can be seen from fig. 2E and 4E, the large current terminal 103 is placed on the side of the connector where there are fewer signal terminals 601 to make reasonable use of the PCB space on the connector.

In some embodiments, as shown in fig. 7, the signal terminal 601 includes a third contact 701 and two fourth contacts 702, wherein the third contact 701 is connected to a gold finger 703 on the FPC, one fourth contact 702 is contacted to a PAD704 on the PCB to form a simple beam structure, and the other fourth contact 702 is soldered on the PCB.

In some embodiments, a fifth conductive path 705 of the PCB and the FPC is formed between the third contact 701 and one fourth contact 702, and a sixth conductive path 706 of the PCB and the FPC is formed between the third contact 701 and another fourth contact 702.

The signal terminal 601 is in contact with a PAD PAD704 on the PCB to form a simple beam structure, so that the stability of the fifth conduction path 705 is improved, meanwhile, the signal terminal 601 can form two conduction paths between the PCB and the FPC, and the stability of signal transmission of the connector is ensured.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A connector, comprising:

the flexible printed circuit board comprises a base, a shell and a plurality of large-current terminals, wherein the large-current terminals and the base are fixed on a Printed Circuit Board (PCB) in an interference fit manner, and an installation groove of a Flexible Printed Circuit (FPC) is formed between the base and the shell;

2. The connector of claim 1, wherein each high current terminal includes two first contacts and two second contacts;

3. The connector of claim 2, wherein a first conduction path and a second conduction path of the PCB and the FPC are formed between the two first contacts and the one second contact, respectively, and a third conduction path of the PCB and the FPC is formed between the one of the two first contacts and the other second contact.

4. The connector of claim 1, wherein each high current terminal includes three first contacts and two second contacts;

5. The connector of claim 4, wherein a first conduction path, a second conduction path and a third conduction path of the PCB and the FPC are formed between the three first contacts and the one second contact, respectively, and a fourth conduction path of the PCB and the FPC is formed between one first contact and the other second contact of the three first contacts.

6. The connector of claim 1, further comprising a plurality of signal terminals, the plurality of signal terminals and the base being secured to the PCB in an interference fit.

7. The connector of claim 6, wherein the signal terminals include a third contact and two fourth contacts, wherein the third contact is connected to a gold finger on the FPC, one fourth contact is contacted to a PAD on the PCB to form a simple beam structure, and the other fourth contact is soldered on the PCB.

8. The connector of claim 7, wherein a fifth conduction path between the PCB and the FPC is formed between the third contact and the one fourth contact, and a sixth conduction path between the PCB and the FPC is formed between the third contact and the other fourth contact.

9. The connector of claim 1, wherein two latches are secured to the housing.

10. A connector according to any one of claims 1 to 9, wherein the base and the housing are obtained by in-mold composite molding.