CN216820207U

CN216820207U - Circuit connection interface

Info

Publication number: CN216820207U
Application number: CN202122428128.6U
Authority: CN
Inventors: 王涌权
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-06-24
Anticipated expiration: 2031-10-11

Abstract

The invention discloses a circuit connection interface which is characterized by comprising five pins/rows arranged in sequence, wherein electrical signals connected in sequence are ABCAB in sequence represented by symbols. When a 3pin circuit module is connected alone, a group of ABCAB interfaces has two pins A and B which are vacant/redundant. Each group of ABCB interface realizes compatibility of six 3pin circuit modules of ABC (CBA)/ACB (BCA)/BAC (CAB) in positive and negative sequences through redundant two pins A and B. The invention also discloses application of the circuit connection interface. The invention has simple structure, easy production and good compatibility, can obviously reduce the compatibility cost of a development board and an expansion board, expands the range and the flexibility of a compatible 3pin circuit module under the same area, and has great progress compared with the prior art.

Description

Circuit connection interface

Technical Field

The invention relates to the technical field of electronic circuit board manufacturing design connection interfaces, in particular to a reserved interface and connection application of a circuit module for connecting different 3pin electrical signals by a circuit development board.

Background

The mainstream of various development boards which become open source hardware and semi-open source hardware exceeds ten loads, and reserved interfaces for connecting with sensors are arranged on the development boards and are commonly provided with pins, nuts or welding-free connecting seats. However, no matter what kind of physical device is used, since development boards and open source hardware have been raised up to now, all known development boards on the market have not been able to solve the problem of easy use of connection well. For example:

a development board such as Arduino, raspberry pi, etc. needs to be connected to an external circuit module through a dupont line. The temporary connection line represented by the dupont line is often loosened due to the fact that the adjustment sequence needs to be twisted, torn and other damage behaviors to connect, so that accidents and inconvenience are caused during development and testing, an extension board is required to be externally inserted to separately lead out input and output pins, but pins led out by the existing extension board are often only suitable for connection of specific sensors in arrangement, and direct connection is inconvenient due to different definitions of the electrical sequence of the sensor pins when the sensor is changed into the sensor.

The most common one is the 3pin sensor module, except for the multi-pin circuit module represented by the LoRa, NRF communication module, and the 4pin circuit module represented by I2C, serial port. However, the power supply input pins VCC and GND and the Signal output pin Signal _ OUT of the 3pin sensor have no unified standard in the electrical sequencing at the time of factory shipment, and have six sequences of positive and negative according to the sequence of VGS, GVS and VSG, so that the compatibility with the six sequences has been a trouble for development boards with scarce lead-OUT pins.

Besides the 3pin sensor module, a module for providing Signal output by a development board, such as a WS2812 color lamp module, IN which a Signal pin is a Signal input pin Signal _ IN, is required, and the problem of non-uniform sequencing is also solved when the development board is connected with the development board.

The solutions known at present to address the above problems, one way disclosed is: three separate independent female sockets or pins of VGS \ GVS \ VSG are provided at the same time during wiring design, but the area of the circuit board and the complexity of designing and wiring are significantly increased by such 3x3pin interface design. Yet another disclosed approach is to use a jumper cap, but such a design still does not avoid the above-mentioned inconvenience.

After the applicant develops the soilless culture planting system for own cost, the design and manufacture of an electronic circuit and big data analysis are concentrated on for a long time for continuously improving the Internet of things planting system based on soilless culture. In the practice of long-term circuit design, EDA drawing, PCB manufacturing and development board use, the layout and wiring modes of input and output IO pins on a development board and an expansion board are redesigned, and the innovative design is applied to the Arduino, raspberry group, ESP32 development board and other self-made functional circuit boards, so that the development board and the expansion board have more convenient and comfortable connection experience and wide use prospects compared with the existing development board and expansion board in the market.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a connection interface to accommodate multiple electrical pin sequences of circuit modules with 3pin different electrical signals.

The invention aims to solve the technical problem of providing a convenient and universal connection interface of a 3pin circuit module compatible with electrical pin sequence change. The connection interface as the first aspect of the present invention comprises five/group pins arranged in ABCAB order.

In a preferred embodiment of the present invention, five/row pins are arranged according to the sequence combination of ABCAB, wherein A, B, C is any one of VCC, GND and Signal, i.e. VGSVG \ svsvsvsv \ GSVGS effect is equivalent, and only difference is generated according to specific wiring condition, in particular, VGSVG (gvsgv) has the advantage over svsvsv (vsgvs) \ GSVGS (sgvsg) in the embodiment that when multiplexing of the pins of the board itself is not developed, only one/row S Signal is provided, and wiring is simpler and easier.

In a preferred embodiment of the present invention, each of the five/row pins may be a dummy pad, a gold finger, a pin header, a row header, a solderless connector, and combinations thereof, regardless of the physical structure, type, and class of the particular device, and only with respect to the electrical pin order and layout of the five/row pins.

In a preferred embodiment of the present invention, five/rank pins can be directly connected to the 3pin circuit module through pins, ranks, etc., or indirectly connected through dupont lines, flat cables, etc., regardless of the specific connection method, and only with respect to the electrical pin order and layout of the five/rank pins.

In a preferred embodiment of the present invention, the pin pitch between the five/row pins may be 2mm, 2.54mm, 5.08mm and other common electrical connector socket pitches, regardless of the specific value of the pitch, and only with respect to the electrical order and layout of the five/row pins.

In a preferred embodiment of the invention, five/row pins in an extreme case, a single interface has more than two physical pins, but in terms of electrical properties, the same electrical signal, for example a solderless wire holder with two pins.

In a preferred embodiment of the present invention, the five/row pins are distinguished by three plastic shells with different colors, or plastic shells with the same color can be used, which are distinguished only by the silk screen printing of the circuit board, and are independent of the color of the plastic shells, and are only related to the pin order and layout of the five/row pins.

In a preferred embodiment of the present invention, five/row pins are used for the wiring design of PCB development board/expansion board, and also can be used for the wiring design of flexible circuit board FPC, regardless of the physical material of the circuit board, and only related to the electrical order and layout of five/row pins.

The connection interface and the sequencing of the invention have the advantages of universal structure and low cost, are used for manufacturing reserved connection interfaces of electronic circuits such as development boards, expansion boards and the like, and have the advantages of simple and convenient manufacture and low production cost.

Drawings

Fig. 1 is a schematic structural diagram of a connection interface according to an embodiment of the present invention.

Fig. 2 is an external connection diagram of an embodiment of the connection interface of the present invention.

Detailed Description

Referring to fig. 1, the sequence, layout and electrical connection of the circuit connection interfaces is shown to include five/row vertical pin headers 200 and five/row vertical pin headers 300 arranged together in ABCAB order on an Arduino expansion board 000. And when the A \ B \ C is respectively communicated with VCC \ GND \ Signal pin positions, five/row longitudinal connecting interfaces 400 of the VGSVG electrical sequence are obtained.

In order to be compatible with the popular pin layout that Arduino has already agreed, the original pin positions and electrical definitions of the pins of Arduino may be retained during the layout process, as shown in the pad 500, or only the VSGVS/GSVGS arrangement may be used.

Referring to fig. 2, in order to connect a 3pin sensor, an embodiment is that when the pins of the ultrasonic sensor 800 are factory set in SVG order, it should be connected to the corresponding sequential SVG600 of the five/rank interface 400 of the Arduino expansion board 000. When the pins of the sensor 900 are factory set to the VGS sequence, the pins are connected to the SVG700 of the five/row interface 400 of the Arduino expansion board 100 in the corresponding sequence. The other four 3pin circuit modules in the factory order can conveniently find the matched triple position connection at 5/row interfaces.

The pads in fig. 1 and 2 only illustrate and distinguish the relative positions of the a/B/C pins, and the illustrated shapes do not represent the actual physical shapes of the pads.

The circuit connection interface is used for connecting circuit modules with 3pin different signals in circuit board design.

The circuit connection interface has the advantages of simple structure, low cost, simple production, convenient connection and good compatibility, and is used for manufacturing development boards and expansion boards.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. Electrical connection interface, characterized in that it comprises five/row electrical pins arranged in sequence, the electrical signals connected in sequence being in the order ABCAB in the symbolic representation, where A, B, C represents the different electrical signals.

2. The connection interface of claim 1 wherein the electrical signals connected are ABCAB in sign-differentiated order, and wherein a group of ABCAB interfaces has two pins a and B empty/redundant when a 3pin circuit module is connected alone.

3. The circuit connection interface of claim 2, wherein compatibility of abc (cba)/acb (bca)/bac (cab) six 3pin circuit module interfaces in forward and reverse order is achieved by redundant two pins, a and B, in each set of ABCAB interfaces.

4. The connection interface of any one of claims 1 to 3, wherein each of the five pins/row is an empty pad, gold finger, pin, bus, solderless connector, or combinations thereof, regardless of the physical configuration, model, and class of the particular device, only to the extent that the electrical pin order of its pins is ABCAB.

5. A connection interface as claimed in any one of claims 1 to 3, wherein the five/rank pins are connected directly to the 3pin circuit module by pins, ranks, or indirectly by dupont lines, busses, regardless of the particular connection, only to satisfy the electrical pin order ABCAB for its pins.

6. The connection interface of any one of claims 1 to 3, wherein the pin pitch between five/row pins is a common electrical connector socket pitch, and is independent of the specific value of the pitch, only the electrical pin order of the pins is ABCAB.

7. The connection interface of any one of claims 1 to 3, wherein the different electrical signals represented by A, B, C in the five/row pins ABCAB correspond to one, two, or more than two physical pins on the package.

8. A connection interface as claimed in any one of claims 1 to 3, wherein the five/row pins are distinguished by plastic shells of different colours, or plastic shells of the same colour are used, or are distinguished by circuit board screen printing only, independently of the colour of the plastic shell, only the electrical pin order of the pins is ABCAB.