a controller

Abstract

The invention relates to the field of household application control systems, and especially relates to a controller. The controller enables a wiring positioning terminal to be connected to an outer side of a wire in an integrated manner in a mode of compression molding, thereby improving the tensile strength, and improving the safety. A circuit board among position conductive layers is provided with a powder leaking hole, thereby preventing conductive powder from being connected with the position conductive layers, avoiding short-circuit phenomenon, and enabling the safety to be better.

Description

technical field [0001] The invention relates to the field of control systems of household appliances, in particular to a controller. Background technique [0002] The electric blanket is mainly used for raising the temperature in the quilt when people sleep to achieve the purpose of heating, and it is manually controlled by a controller. At present, the electric blanket controllers on the market have the following three deficiencies: 1. The circuit board on the existing controllers is positioned and installed inside the casing, and the structure is complex and easy to loosen. 2. The wires of the controller are positioned on the controller shell. The international standard for the tensile strength of the electric blanket controller is that when a 10kg pulling force is applied to the wires, the stretching length of the wires shall not exceed 3mm; however, the current electric heating The wire positioning structure of the blanket controller is single, and it is difficult to me...

AI Technical Summary

Problems solved by technology

At present, the electric blanket controller on the market has the disadvantages of the following three aspects: 1. The circuit board on the existing controller is positioned and installed inside the housing, and the structure is complicated and easy to loosen

2. The wires of the controller are positioned on the controller shell. The international standard for the tensile strength of the electric blanket controller is that when a 10kg pulling force is applied to the wires, the stretching length of the wires shall not exceed 3mm; however, the current electric heating The wire positioning structure of the blanket controller is single, and it is difficult to meet the above tensile strength standards

2. The electric blanket controller has the function of multi-gear temperature adjustment. The switch conductive layer on the circuit board is connected to different gear conductive layers through the gear paddle. The operator can slide the gear paddle through the switch; however, now The creepage distance between the conductive layers of adjacent gears on the circuit board of the controller is too short, and the conductive dust scraped off the conductive layers of the gears may be brought into the creepage during each sliding process of the gear paddle. In the electrical area, after the gear paddle is used several times, a sufficient amount of conductive dust accumulates in the creepage area, and short circuits are prone to occur between the conductive layers of the gears, posing a potential accident

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