Knob holder for air conditioning units that allows easy replacement of damaged knob assemblies due to impact

Abstract

The present invention relates to a knob holder for an air conditioning system that facilitates the easy replacement of a knob assembly damaged by impact. The knob holder to which the adjustment knob is coupled comprises a hollow lower body, a hollow upper body spaced apart from the upper end of the lower body, and a breaking means connecting the upper surface of the opposing lower body and the lower surface of the upper body. The breaking means is composed of a plurality of ribs inclined in one direction. When a load of 30 kgf or more and 40 kgf or less is applied to the adjustment knob by the ribs inclined in one direction, the central part of the ribs breaks simultaneously with the upper body moving toward the lower body, causing the adjustment knob to enter the interior of a mounting hole provided in the front panel. Consequently, in the event of a vehicle accident, secondary accidents caused by a person inside the vehicle colliding with the adjustment knob protruding from the front panel can be prevented to the maximum extent. Furthermore, it complies with the European Union's vehicle interior equipment standards, allowing for expectations of export potential. Additionally, unlike conventional methods, a circular breaking groove is formed on a PCB board, and the breaking groove provided on the PCB board Since the knob holder to which the adjustment knob is attached does not move upon breaking, even if the knob holder enters the mounting hole of the front panel due to carelessness during the manufacturing process or transportation, only the knob holder can be replaced, thereby reducing after-sales service costs; by forming a breaking groove on the upper surface of the rib, the central part of the rib can be easily broken by the breaking groove; and by forming a concave groove in the central part on the upper and lower surfaces of the rib, the connection strength between the lower body and the upper body can be increased by using the rib equipped with the groove, and the central part of the rib constituting the knob holder can be easily broken by impact applied to the adjustment knob; and the breaking means comprises a first rib body protruding vertically with a thickness of 1 / 2 the thickness of the upper surface of the lower body, and a movable hole part formed on the upper part of the first rib body such that a fixed hole is provided on the upper part and a movable hole is provided on the lower part by a catch part formed protruding on the inner surface, andBy comprising a second rib body that protrudes vertically with a thickness of half the thickness of the lower surface of the upper body corresponding to the first rib body, and a movable fixing bar formed protruding from the lower outer surface of the second rib body to penetrate the movable hole, the upper body moves up and down depending on the direction in which the movable fixing bar moves; thus, even if the upper body moves to the lower body due to the process of assembling the knob assembly or driver negligence, the moved upper body can be moved back up with a simple operation, thereby reducing the maintenance costs of the knob assembly.