CN220934531U

CN220934531U - Male connector for transmitting larger current and electronic product

Info

Publication number: CN220934531U
Application number: CN202320889364.4U
Authority: CN
Inventors: 韩林; 王钰; 杨生虎
Original assignee: Lianji Precision Electronics Co ltd
Current assignee: Lianji Precision Electronics Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2024-05-10
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a male connector capable of transmitting larger current and an electronic product, comprising an insulating body, a terminal group and a shell, wherein the terminal group comprises a plurality of terminals, and a GND terminal, a VBUS terminal, a first group of differential signal pair terminals and a second group of differential signal pair terminals are defined; the welding pins of the GND terminal are divided into two GND branch welding pins which are mutually separated, one GND branch welding pin is positioned between the two welding pins of the first group of differential signal pair terminals, and one welding pin of the first group of differential signal pair terminals is positioned between the two GND branch welding pins; the welding pins of the VBUS terminals are divided into two VBUS branch welding pins which are mutually separated, one VBUS branch welding pin is positioned between the two welding pins of the second group of differential signal pair terminals, and one welding pin of the second group of differential signal pair terminals is positioned between the two VBUS branch welding pins; and the shell is coated on the periphery of the insulating body to form the plug part. And larger current can be transmitted, so that the conversion from a differential signal to a common mode signal is reduced, and the EMI problem is improved.

Description

Male connector for transmitting larger current and electronic product

Technical Field

The utility model relates to the technical field of USB connectors, in particular to a male connector for transmitting larger current and an electronic product.

Background

The USB Type-A male connector is widely applied, is mainly applied to charging and data transmission, and is commonly used for being plugged with a female socket interface on electrical products such as a mobile phone, a computer, a charging adapter and a mobile power supply.

How to transmit larger currents and how to better meet high-speed data transmission has been an important research topic for charging and data transmission. For the USB2.0Type-A with only 4PIN terminals, the number of the terminals is small, and the terminal area can be designed to be larger; for more terminals of the USB Type-a male connector, for example, CN 212136736U discloses a USB Type-a plug, in which the terminal structure has a plurality of terminals, specifically 5 terminals, which are a power terminal, a ground terminal, a shield terminal, and two signal terminals, respectively, wherein the power terminal and the ground terminal are located on two sides of the other 3 terminals, respectively; the 5 terminals can still be designed to have a larger area for each terminal. But for the USB3.0 Type-a male connector with 9PIN terminals, it also has two sets of differential signal pair terminals, and a larger number of terminals results in limited design area of the power terminal and the ground terminal, and at the same time, in practical use, the differential signal is converted to a common mode signal, and the common mode noise directly causes EMI (electromagnetic interference). As shown in fig. 18 to 20, the differential to common mode condition, the insertion loss condition and the crosstalk condition of the 9PIN pad TYPE USB3.0 TYPE-a male connector of the prior art are shown when the high frequency simulation experiment analysis is performed.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of utility model

In view of the above, the present utility model is directed to the disadvantages of the prior art, and it is a primary object of the present utility model to provide a male connector and an electronic product for transmitting larger current, which can transmit larger current, effectively reduce the conversion from differential signals to common mode signals, and improve EMI problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

A male connector for transmitting larger current is of the USB3.0 TYPE-A TYPE, and comprises an insulating body, a terminal group arranged on the insulating body and a shell coated on the periphery of the insulating body to form a plug part;

The terminal group comprises a plurality of terminals, each terminal is provided with a contact part, a fixing part and a welding pin, the insulating body is provided with a tongue plate part and a tail seat part connected with the tongue plate part, the contact parts are exposed on the tongue plate part of the insulating body, and the welding pins are exposed outside the tail seat part of the insulating body; the terminals are at least defined with a GND terminal, a VBUS terminal, a first group of differential signal pair terminals, a second group of differential signal pair terminals, a D+ terminal, a D-terminal and a GND_DRAIN terminal; the first group of differential signal pair terminals and the second group of differential signal pair terminals are one of which is a Tx terminal group and the other is an Rx terminal group, wherein the Tx terminal group comprises a Tx+ terminal and a Tx-terminal, and the Rx terminal group comprises an Rx+ terminal and an Rx-terminal; the welding pins of the GND terminal are divided into two GND branch welding pins which are mutually separated, one GND branch welding pin is positioned between the two welding pins of the first group of differential signal pair terminals, and one welding pin of the first group of differential signal pair terminals is positioned between the two GND branch welding pins; the welding pins of the VBUS terminal are divided into two VBUS branch welding pins which are mutually separated, one VBUS branch welding pin is positioned between the two welding pins of the second group of differential signal pair terminals, and one welding pin of the second group of differential signal pair terminals is positioned between the two VBUS branch welding pins.

As a preferable mode, the fixing portion of the GND terminal is divided into two GND branch fixing portions which are spaced apart from each other, one end of each of the two GND branch fixing portions is connected to the contact portion of the GND terminal, one of the GND branch welding pins is integrally extended from the other end of the one GND branch fixing portion, and the other GND branch welding pin is integrally extended from the other end of the other GND branch fixing portion.

As a preferred solution, the first group of differential signal pair terminals and the two GND branch fixing portions are arranged side by side at a pitch.

As a preferred solution, the fixing portion of the VBUS terminal is divided into two VBUS branch fixing portions spaced from each other, and one ends of the two VBUS branch fixing portions are both connected to the contact portion of the VBUS terminal, wherein one VBUS branch welding leg integrally extends from the other end of the one VBUS branch fixing portion, and the other VBUS branch welding leg integrally extends from the other end of the other VBUS branch fixing portion.

As a preferred solution, the second set of differential signal pair terminals and the two VBUS branch fixing portions are arranged in a side-by-side pitch.

As a preferred scheme, one of the GND branch bonding leg, the Rx-terminal bonding leg, the other of the GND branch bonding leg, the rx+ terminal bonding leg, the d+ terminal bonding leg, the gnd_draw terminal bonding leg, the D-terminal bonding leg, the Tx-terminal bonding leg, one of the VBUS branch bonding legs, the tx+ terminal bonding leg, and the other of the VBUS branch bonding legs are arranged side by side at a sequential pitch.

An electronic product having a USB 3.0TYPE-a male connector as claimed in any preceding claim.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, according to the technical scheme, the welding pins of the GND terminal are divided into two GND branch welding pins which are mutually separated, the welding pins of the VBUS terminal are divided into two VBUS branch welding pins which are mutually separated, one GND branch welding pin is positioned between the two welding pins of the first group of differential signal pair terminals, one welding pin of the first group of differential signal pair terminals is positioned between the two GND branch welding pins, one VBUS branch welding pin is positioned between the two welding pins of the second group of differential signal pair terminals, and one welding pin of the second group of differential signal pair terminals is positioned between the two VBUS branch welding pins; on one hand, larger current can be transmitted, and on the other hand, the conversion from a differential signal to a common mode signal is effectively reduced, and the EMI problem is improved.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of a male connector for carrying greater current in accordance with an embodiment of the present utility model;

FIG. 2 is a bottom view of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 3 is a side view of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 4 is a top view of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 5 is a front view of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 6 is another perspective view of a male connector for carrying greater current in accordance with an embodiment of the present utility model;

FIG. 7 is a partial perspective view of a male connector (not shown) carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 8 is a top view of a terminal set of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 9 is a perspective view of a terminal set of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 10 is a side view of a terminal set of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 11 is a front view of a terminal set of a male connector carrying a greater current in accordance with an embodiment of the present utility model;

FIG. 12 is a perspective view of the GND terminal, the D+ terminal, the D-terminal, and the VBUS terminal of an embodiment of the present utility model;

FIG. 13 is a perspective view of an Rx-terminal, rx+ terminal, GND_DRAIN terminal, tx-terminal, and Tx+ terminal of an embodiment of the present utility model;

Fig. 14 is a top view of a terminal set (PIN definition order changed) according to another embodiment of the present utility model;

FIG. 15 is a differential to common mode diagram of a USB3.0 TYPE-A male connector according to the present utility model for high frequency simulation experimental analysis;

FIG. 16 is a graph showing the insertion loss of a USB3.0 TYPE-A male connector according to the present utility model when subjected to high frequency simulation test analysis;

FIG. 17 is a cross-talk situation of a USB3.0 TYPE-A male connector according to the present utility model during high frequency simulation test analysis;

FIG. 18 is a differential to common mode condition of a prior art 9PIN solder PIN USB3.0 TYPE-A male connector for high frequency simulation experimental analysis;

FIG. 19 is a diagram showing the insertion loss of a prior art 9PIN solder PIN USB3.0 TYPE-A male connector as analyzed by high frequency simulation experiments;

Fig. 20 shows crosstalk when a conventional 9PIN pad TYPE USB3.0 TYPE-a male connector is subjected to high-frequency simulation test analysis.

The attached drawings are used for identifying and describing: the connector comprises an insulating body 1, a terminal group 2, a housing 3, a contact part 4, a GND terminal 5, a VBUS terminal 6, a GND1 welding pin 51, a GND2 welding pin 52, a VBUS1 welding pin 61, a VBUS2 welding pin 62, a Tx+ terminal 7, a Tx-terminal 8, a Rx+ terminal 9, a Rx-terminal 10, a GND branch fixing part 53, a VBUS branch fixing part 63, a D+ terminal 11, a D-terminal 12, a GND_DRAIN terminal 13 and a fixing part 14.

Detailed Description

Referring to fig. 1 to 17, specific structures of embodiments of the present utility model are shown.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

A male connector for transmitting larger current is of the USB3.0 TYPE-A TYPE and comprises an insulating body 1, a terminal group 2 and a shell 3.

The insulating body 1 has a tongue plate portion and a tail portion integrally connected to the tongue plate portion.

The terminal group 2 is arranged on the insulating body 1, and is fixed on the insulating body 1 by injection molding in general; the terminal group 2 comprises a plurality of terminals, each terminal is provided with a contact part 4, a fixing part 14 and a welding pin, the contact parts 4 are exposed on the tongue plate parts, the fixing parts are mainly arranged in the tail seat parts, and the welding pins are exposed outside the tail seat parts; at least a GND terminal 5, a VBUS terminal 6, a first group of differential signal pair terminals and a second group of differential signal pair terminals are defined in the plurality of terminals; the welding pins of the GND terminal are divided into two GND branch welding pins (i.e., GND1 welding pin 51 and GND2 welding pin 52) that are spaced apart from each other, wherein one of the GND branch welding pins is located between the two welding pins of the first group of differential signal pair terminals, and one of the welding pins of the first group of differential signal pair terminals is located between the two GND branch welding pins; the welding legs of the VBUS terminals are divided into two VBUS branch welding legs (namely a VBUS1 welding leg 61 and a VBUS2 welding leg 62) which are mutually separated, wherein one VBUS branch welding leg is positioned between the two welding legs of the second group of differential signal pair terminals, and one welding leg of the second group of differential signal pair terminals is positioned between the two VBUS branch welding legs. Therefore, the conversion from the differential signal to the common mode signal is effectively reduced, and the EMI problem is improved.

The first and second sets of differential signal pair terminals, one of which is a Tx terminal group comprising tx+ terminal 7 and Tx-terminal 8, and the other of which is an Rx terminal group comprising rx+ terminal 9 and Rx-terminal 10. The fixing part of the GND terminal is divided into two GND branch fixing parts 53 that are separated from each other, one end of each of the two GND branch fixing parts 53 is connected to the rear end of the contact part 4 of the GND terminal, one GND branch welding pin integrally extends from the other end of one GND branch fixing part 53 to the rear, and the other GND branch welding pin integrally extends from the other end of the other GND branch fixing part 53 to the rear. The first group of differential signal pair terminals and the two GND branch fixing portions 53 are arranged side by side at a pitch. The fixed part of the VBUS terminal is divided into two VBUS branch fixed parts 63 which are mutually separated, one ends of the two VBUS branch fixed parts 63 are both connected to the rear end of the contact part 4 of the VBUS terminal, one VBUS branch welding pin integrally extends from the other end of the VBUS branch fixed part 63 to the rear, and the other VBUS branch welding pin integrally extends from the other end of the other VBUS branch fixed part 63 to the rear. The second set of differential signal pair terminals and the two VBUS branch fixing sections 63 are arranged side by side at a pitch.

Also defined among the terminals are d+ terminals 11 and D-terminals 12, the d+ terminals 11 and D-terminals 12 being located between the first set of differential signal pair terminals and the second set of differential signal pair terminals. Also defined among the terminals is a gnd_drain terminal 13, the gnd_drain terminal 13 being located between the d+ terminal 11 and the D-terminal 12. The welding device comprises a GND branch welding pin, a Rx-terminal welding pin, another GND branch welding pin, a Rx+ terminal welding pin, a D+ terminal welding pin, a GND_DRAIN terminal welding pin, a D-terminal welding pin, a Tx-terminal welding pin, a VBUS branch welding pin, a Tx+ terminal welding pin and another VBUS branch welding pin, which are sequentially arranged at intervals and are arranged at the rear side of a tailstock part. The fixing portion of the one GND branch fixing portion 53, the other GND branch fixing portion 53, the fixing portion of the d+ terminal, the fixing portion of the D-terminal, the fixing portion of the one VBUS branch fixing portion 63, and the fixing portion of the other VBUS branch fixing portion 63 are sequentially adjacent to each other and form a space, and the fixing portions of the Rx-terminal, the fixing portion of the rx+ terminal, the fixing portion of the gnd_draw terminal, the fixing portion of the Tx-terminal, and the fixing portion 14 of the tx+ terminal are located above the corresponding space, so that the areas of the GND branch fixing portion 53 and the VBUS branch fixing portion 63 can be designed to be wider by using the vertically offset design, which is advantageous for transmitting larger currents, and the widths of the fixing portions of the other terminals such as the d+ terminal, the D-terminal, the Rx-terminal, the rx+ terminal, the Tx-terminal, the tx+ terminal, the gnd_draw terminal, and the contact portion 4 can be designed to be wider, which is advantageous for improving the structural strength of the terminals themselves and the stability thereof in the insulating body 1, and improving the reliability of the male connector and the female connector when the connector is used. Moreover, since the design space of one GND branch fixing portion 53 and one VBUS branch fixing portion 63 is reserved at the outermost side of the differential signal pair terminals (which is also equivalent to the left and right outer side portions of the whole terminal group 2), the GND branch fixing portion 53 and the VBUS branch fixing portion 63 at the outermost side can be designed to have sufficient width, and still the structural layout of the whole terminal group 2 and the USB 3.0TYPE-a male connector can be satisfied, and the positions of the contact portions 4 are mainly controlled.

The housing 3 is typically a metal shell, which is wrapped around the outer periphery of the insulating body 1 to form a plug portion.

Fig. 18 to 20 show the differential to common mode condition, the insertion loss condition and the crosstalk condition of the 9PIN pad TYPE USB3.0 TYPE-a male connector of the prior art when the high frequency simulation experiment analysis is performed. Fig. 15 to 17 show differential to common mode conditions, insertion loss conditions and crosstalk conditions when the high-frequency simulation test analysis is performed on the 11PIN pad TYPE USB3.0 TYPE-a male connector according to the embodiment of the present utility model. It can be seen that: the embodiment of the utility model reflects that the dB value of the differential-to-common mode condition is lower than that of the traditional technology by 5dB (generally, the smaller the dB value is, the better), namely: the dB value of the USB3.0 TYPE-A male connector is obviously lower than that of a 9PIN welding PIN TYPE USB3.0 TYPE-A male connector in the prior art; and the larger and better the dB value is, the embodiment of the utility model is 0.9dB higher than the traditional technology; and, in the case of crosstalk, the smaller this dB value is, the better the embodiment of the present utility model is, 2dB lower than the conventional technique. Through simulation and experimental demonstration, the technology of the utility model can effectively control the conversion problem from the differential mode to the common mode of the USB3.0 TYPE-A male connector, thereby improving the EMI problem. It should be noted that: the dB values in the high-frequency simulation experiment analysis table are all negative values, and the dB values of differential to common mode and crosstalk are smaller and better according to the actual value (the larger the value is ), and the dB values of insertion loss are larger and better.

And, there is also provided an electronic product or a mobile terminal, such as: the mobile phone, the computer, the charging adapter, the mobile power supply, the mobile memory, the data line and the like are provided with the USB 3.0TYPE-A male connector. The USB 3.0TYPE-a male connector is usually installed on an electronic product or a mobile terminal such as a mobile phone, a computer, a charging adapter, a mobile power supply, a mobile memory, and a data line.

The design of the utility model focuses on that the welding pins of the GND terminal are divided into two GND branch welding pins which are mutually separated, the welding pins of the VBUS terminal are divided into two VBUS branch welding pins which are mutually separated, one GND branch welding pin is positioned between the two welding pins of the first group of differential signal pair terminals, one welding pin of the first group of differential signal pair terminals is positioned between the two GND branch welding pins, one VBUS branch welding pin is positioned between the two welding pins of the second group of differential signal pair terminals, and one welding pin of the second group of differential signal pair terminals is positioned between the two VBUS branch welding pins; on one hand, larger current can be transmitted, and on the other hand, the conversion from a differential signal to a common mode signal is effectively reduced, and the EMI problem is improved.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. The utility model provides a but transmission bigger current's public head connector, it is USB3.0 TYPE-A TYPE, including insulator, set up in terminal group on the insulator, and, the cladding in insulator's periphery is in order to form the casing of plug, its characterized in that:

2. The male connector capable of transmitting larger currents as recited in claim 1, wherein: the fixing part of the GND terminal is divided into two GND branch fixing parts which are mutually separated, one ends of the two GND branch fixing parts are connected to the contact part of the GND terminal, one GND branch welding pin integrally extends from the other end of one GND branch fixing part, and the other GND branch welding pin integrally extends from the other end of the other GND branch fixing part.

3. The male connector capable of transmitting a larger current according to claim 2, wherein: the first group of differential signal pair terminals and the two GND branch fixing portions are arranged side by side at a pitch.

4. The male connector capable of transmitting larger currents as recited in claim 1, wherein: the fixed part of VBUS terminal becomes two VBUS branch fixed parts that separate each other, the one end of two VBUS branch fixed parts all connect in the contact portion of VBUS terminal, one VBUS branch welding foot extends the setting from the other end of one VBUS branch fixed part an organic whole, and another VBUS branch welding foot extends the setting from the other end of another VBUS branch fixed part an organic whole.

5. The male connector capable of transmitting a larger current as claimed in claim 4, wherein: the second set of differential signal pair terminals and the two VBUS branch fixing portions are arranged in a side-by-side spacing.

6. A male connector capable of transmitting a larger current as claimed in claim 3, wherein: one of the GND branch welding pin, the Rx-terminal welding pin, the other of the GND branch welding pin, the rx+ terminal welding pin, the d+ terminal welding pin, the gnd_drain terminal welding pin, the D-terminal welding pin, the Tx-terminal welding pin, the one of the VBUS branch welding pin, the tx+ terminal welding pin, and the other of the VBUS branch welding pin are sequentially arranged at intervals side by side.

7. An electronic product, characterized in that: having a male connector as claimed in any one of claims 1 to 6 which can carry a greater current.