CN213844126U

CN213844126U - Expansion device of switch board

Info

Publication number: CN213844126U
Application number: CN202022847138.9U
Authority: CN
Inventors: 邱勇涛
Original assignee: Shenzhen Jiadujia Electronic Technology Co ltd
Current assignee: Shenzhen Jiadujia Electronic Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-30
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a switch board technical field, in particular to expansion device of switch board. The utility model provides a pair of technical scheme is: an expansion device of a switch board, comprising: the switch board is provided with an expansion module, and the expansion module is provided with the connector, a first phase inverter, a trigger, a buffer, a second phase inverter and an expansion connector; the expansion connectors are connected in parallel, the expansion connectors after being connected in parallel are connected with a second phase inverter and a buffer, the buffer is connected with the trigger, the trigger is connected with the connector, and the connector is connected with a first phase inverter. The expanding device of the switch board is simple in structure, high in production efficiency, standard in process, small in size and low in cost and maintenance cost.

Description

Expansion device of switch board

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of switch board, in particular to expansion device of switch board.

[ background of the invention ]

With the development of TFT display technology, the size of the TFT display module is getting larger and larger, and the TFT display module is widely applied to mobile terminals, industries, vehicles, and other devices. In the process of manufacturing and quality testing of the TFT display module, the TFT display module to be tested needs to be connected to an external test device to test the voltage or current of the port (such as AVDD, VGH, VGL, VCOM, VCC, etc.) of the TFT display module to be tested.

However, the related switch boards are connected in a flat cable manner, so that the expansion is difficult to carry out according to the actual working requirements, and the use has certain limitation. In addition, the switch board connected by the flat cable mode has the advantages of low production efficiency, non-standard process, increased volume and high cost and maintenance cost.

[ Utility model ] content

In order to overcome the problem, the utility model provides an expansion device of cubical switchboard that production efficiency is high, the technological specification, and is small, and cost and maintenance cost are low.

The utility model provides a technical scheme who above-mentioned technical problem provided is: an expansion device of a switch board, comprising: the switch board is provided with an expansion module, and the expansion module is provided with the connector, a first phase inverter, a trigger, a buffer, a second phase inverter and an expansion connector; the expansion connectors are connected in parallel, the expansion connectors after being connected in parallel are connected with a second phase inverter and a buffer, the buffer is connected with the trigger, the trigger is connected with the connector, and the connector is connected with a first phase inverter.

Further, the connector is a 32-PIN connector, and a port of the connector is connected with the plurality of first inverters.

Further, a plurality of the expansion connectors are connected in parallel, and are provided with a plurality of FFD ports, a plurality of NAO ports, a plurality of CLS ports and a plurality of DATA ports, wherein the NAO ports, the CLS ports and the DATA ports are respectively connected with the buffer.

Furthermore, the connector is provided with a plurality of FD interfaces, a plurality of DATAO ports, a plurality of CLSO ports and a plurality of NA ports, wherein the FD interfaces are connected with the trigger.

Furthermore, the trigger is a tri-state trigger, and the tri-state trigger is provided with a plurality of ports for communicating with the information of the FD interface and a plurality of ports for transmitting information with the FFD port.

Furthermore, the buffer is provided with six paths of 7407 buffers, wherein the information of the NAO port is transmitted through the buffer and is connected with the NA port of the connector; the information of the CLS port is transmitted through the buffer and is connected with the CLSO port of the connector; and the information of the DATA port is transmitted through the buffer and is connected with the DATAO port of the connector.

Further, the expansion connector is a 40PIN connector, and multipath expansion is performed through a plurality of same resistors.

Further, the first inverter is 74HCTO04 PW.

Further, the information of the NAO port of the first inverter is transmitted with the information of the NAO port of the expansion connector.

Further, the information of the FD port of the first inverter is transmitted with the information of the FD port of the expansion connector.

Compared with the prior art, the utility model discloses an expansion device of cubical switchboard simple structure, production efficiency is high, and the technology is standard, and is small, and cost and maintenance cost are low.

[ description of the drawings ]

Fig. 1 is a schematic structural view of an expanding device of a switch board according to the present invention;

fig. 2 is a schematic circuit diagram of the connector and the first inverter of the expanding device of the switch board according to the present invention;

fig. 3 is a schematic circuit diagram of an expanding connector of an expanding device of a switch board according to the present invention;

fig. 4 is a schematic circuit diagram of a trigger of an expanding device of a switch board according to the present invention;

fig. 5 is a schematic circuit diagram of a buffer of an expansion device of a switch board according to the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1, the utility model discloses an extend device of cubical switchboard, include: the switch board is provided with an expansion module, and the expansion module is provided with the connector, a first phase inverter, a trigger, a buffer, a second phase inverter and an expansion connector; the expansion connectors are connected in parallel, the expansion connectors after being connected in parallel are connected with a second phase inverter and a buffer, the buffer is connected with the trigger, the trigger is connected with the connector, and the connector is connected with a first phase inverter.

Referring to fig. 2, the connector is a 32PIN connector, and a port of the connector is connected to a plurality of the first inverters. In this embodiment, the number of the connectors is two.

Referring to fig. 3, a plurality of the expansion connectors are connected in parallel, and are provided with a plurality of FFD ports, a plurality of NAO ports, a plurality of CLS ports, and a plurality of DATA ports, where the NAO ports, the CLS ports, and the DATA ports are respectively connected to the buffer.

Referring to fig. 2 and 4, the present connector has a plurality of FD interfaces, a plurality of DATAO ports, a plurality of CLSO ports, and a plurality of NA ports, wherein the FD interfaces are connected to the flip-flops. The trigger is a tri-state trigger, the tri-state trigger is provided with a plurality of ports which are communicated with the information of the FD interface, and a plurality of ports which are used for carrying out information transmission with the FFD port.

Referring to fig. 5, the buffer is provided with six ways of 7407 buffers, wherein the information of the NAO port is transmitted through the buffer and connected to the NA port of the connector; the information of the CLS port is transmitted through the buffer and is connected with the CLSO port of the connector; and the information of the DATA port is transmitted through the buffer and is connected with the DATAO port of the connector.

Referring to fig. 3, the expanding connector is a 40PIN connector, and multiple paths of expanding are performed through a plurality of same resistors.

Referring to fig. 2 and 3, the first inverter is 74HCTO04 PW. And the information of the NAO port of the first inverter is transmitted with the information of the NAO port of the expansion connector. And the information of the FD port of the first inverter is transmitted with the information of the FD port of the expansion connector.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications made within the spirit of the present invention, equivalent replacements and improvements should be included in the scope of the present invention.

Claims

1. An expansion device of a switch board, comprising:

the switch board is provided with an expansion module, and the expansion module is provided with the connector, a first phase inverter, a trigger, a buffer, a second phase inverter and an expansion connector;

the expansion connectors are connected in parallel, the expansion connectors after being connected in parallel are connected with a second phase inverter and a buffer, the buffer is connected with the trigger, the trigger is connected with the connector, and the connector is connected with a first phase inverter.

2. An expansion device for a switch board according to claim 1, wherein said connector is a 32PIN connector having a port to which a plurality of said first inverters are connected.

3. The expansion device of a switch board as claimed in claim 1, wherein a plurality of said expansion connectors are connected in parallel, and there are a plurality of FFD ports, a plurality of NAO ports, a plurality of CLS ports, and a plurality of DATA ports, wherein said NAO port, said CLS port, and said DATA port are respectively connected to said buffer.

4. An expansion device of a switch board according to claim 3, wherein the connector is provided with a plurality of FD interfaces, a plurality of DATAO ports, a plurality of CLSO ports, and a plurality of NA ports, and the FD interfaces are connected with the trigger.

5. The expansion device of claim 4, wherein the flip-flop is a tri-state flip-flop, and the tri-state flip-flop has a plurality of ports for communicating information with the FD interface and a plurality of ports for communicating information with the FFD port.

6. The expanding device of the switch board according to claim 4, wherein the buffer has six-way 7407 buffer, and the information of the NAO port is transmitted through the buffer and connected to the NA port of the connector; the information of the CLS port is transmitted through the buffer and is connected with the CLSO port of the connector; and the information of the DATA port is transmitted through the buffer and is connected with the DATAO port of the connector.

7. An expansion device of a switch board as claimed in claim 1, wherein the expansion connector is a 40PIN connector and is expanded in multiple paths by a plurality of identical resistors.

8. An expansion device for a switchboard according to claim 1, characterized in that said first inverter is 74HCTO04 PW.

9. An expansion device of a switch board according to claim 6, characterized in that the information of the NAO port of the first inverter is transmitted with the information of the NAO port of the expansion connector.

10. An expansion device of a switch board according to claim 6, wherein the information of the FD port of the first inverter is transmitted with the information of the FD port of the expansion connector.