Fool-proof structure for air conditioner electronic control plugging connection

Abstract

The invention discloses a fool-proof structure for air conditioner electronic control plugging connection. The fool-proof structure for air conditioner electronic control plugging connection comprises an electronic control PCB and a connector, wherein the electronic control PCB is provided with pin ports, the connector is provided with pins, and the pins are plugged in the pin ports; the electronic control PCB is provided with plugging holes beside the pin ports for direction recognition, locating columns are arranged at the positions, corresponding to the plugging holes, of the connector, and the locating columns are plugged in the plugging holes. Compared with the prior art, the fool-proof structure for air conditioner electronic control plugging connection has the advantages that the pins of the connector need to be plugged into the pin ports of the electronic control PCB, besides, the locating columns of the connector are also plugged into the corresponding plugging holes of the electronic control PCB, if the locating columns are not installed in the correct direction of the electronic control PCB, the connector can not be plugged into the electronic control PCB, and therefore the connector can be prevented from being reversely plugged to the electronic control PCB, and damage to air conditioner electronic controls from reverse plugging connection can be avoided.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a fool-proof structure for electric control plug connection of air conditioners. Background technique [0002] At present, the power supply board and the display operation board in air-conditioning electronic control products are connected by connecting wires, and the order of the connecting wires in the two electric control boards is one-to-one correspondence, and the electric control PCB board is provided with connectors that match and connect with the connecting wires. The silk screen pin of the connector is the same as the pin of the connector. There is a silk screen of the connector gap in the electronic control PCB board, which is used to distinguish the direction of the connector installation. [0003] The power board of the air conditioner supplies the weak current of 12V or 5V to the display operation board, and there is a main control IC in the display operation board to...

AI Technical Summary

Problems solved by technology

If the connector in the air conditioner power board is installed in reverse on the PCB, the order of the connecting wires plugged into the connector and the order of the electrical control design will be reversed.

[0004] For example, in the position of the PCB cable connector of the air conditioner power board, the first interface on the left is the DC 12V plug position for the display operation board, and the first interface on the right is the connection position for connecting the display operation board to the power board load. , but because the connector is installed in reverse, the direction of the connecting wire plugged into the connector of the power board should be changed accordingly. At this time, the first DC 12V interface on the left side of the power board becomes the connection to the display operation board to deliver the load to the power board. The plug position, the first load interface on the right becomes the DC 12V plug position. When the air conditioner electric control is powered on, the components of the first load interface line on the right will be burned, resulting in failure of the air conditioner electronic control

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