Mistaken touch prevention switch based on Hall effect

Abstract

The invention discloses a mistaken touch prevention switch based on a Hall effect, which belongs to the field of electrical equipment and comprises a panel, a middle shell and a bottom shell, whereina touch capacitor film is laid on the bottom surface of the panel, the panel is connected to the upper part of the middle shell in a sliding manner, and the sliding direction of the panel is parallelto the vertical direction of the middle shell; the bottom shell is installed on the lower portion of the middle shell, a PCBA is arranged in the middle shell, a Hall sensor is installed on the PCBA, and a magnet is installed on a panel above the Hall sensor; an elastic part for resetting the panel after the panel is pressed down is arranged on the middle shell. The switch is reasonable in design and convenient to manufacture and use, and the production cost can be effectively reduced.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a Hall effect-based anti-mistouch switch. Background technique [0002] As people's requirements for automotive interiors gradually increase, the concept of capacitive switches has gradually become popular. Its excellent appearance can give people a strong sense of technology and beauty, so the capacitive switch is also strongly sought after by consumers. [0003] However, a corresponding problem also arises: it is difficult to design the capacitive switch to prevent false touch. Traditional switches are operated by pressing and require a certain amount of force to trigger. The capacitive switch is triggered by the change of the capacitance value, as long as the human body touches it, it will be triggered. Capacitive switches currently on the market will trigger as long as the human body touches them. This triggering principle also directly leads to the problem of easy fals...

AI Technical Summary

Problems solved by technology

[0013] 1. The panel 1 cannot be too large. The small-sized panel 1 can directly rely on the guide rib 81, and the medium-sized panel 1 can be added with a balance spring 8 to maintain uniformity. However, once the panel 1 is out of shape or its length exceeds 80mm, it is extremely difficult to ensure uniform movement. sex;

[0014] 2. The shape of panel 1 should not be too complicated. Once there is an acute angle or a slender structure, it will easily cause stagnation;

[0015] 3. The precision of the mold must be high enough. Since it mainly depends on the four guide ribs 81 and the balance spring 8 to ensure a uniform drop, any deformation of the product and improper size will cause stagnation, and the fit of the guide ribs 81 must also be very precise, so for the mold And the supplier's requirements have increased accordingly, which directly increases the cost of the product; at the same time, the yield rate of panel 1 is low, and the existing product design requires extremely high precision, so the subtle differences in humidity, temperature, and injection molding may cause Stuck, the instability of the batch of parts is likely to cause defective products; and the panel 1 has poor resistance to environmental influences. Once the panel 1 touches the surrounding environment, or dust and debris enter the surrounding of the panel 1, the panel 1 may not be uniform. decline

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