CN209087654U - A kind of knob dustproof construction - Google Patents

Abstract

A kind of knob dustproof construction disclosed by the utility model, including knob, the knob include rotary turnplate, which is characterized in that the periphery of the knob turntable are provided with the dust-proof wall of a circle, the dust-proof wall is connected with the knob turntable.The knob dustproof construction of the utility model is to add the dust-proof wall of a circle in knob turntable periphery, the problem of gap location dust granule of effective solution surface frame and knob turntable enters and falls on the electronic component of pcb board, and long-time service will affect the feel and disabler of knob.The positive effect of the utility model is: the utility model need to be increased with and increase dust-proof wall on product, and organization plan is simple, and cost is constant, and product function is stablized, and the quality requirement of product is met.

Description

A kind of knob dustproof construction

Technical field

The utility model relates to vehicle air conditioning panel controller technology fields, and in particular to one kind be able to satisfy functional requirement, Cost, which does not increase and can have, reaches dust-proof effect knob dustproof construction.

Background technique

On automobile interior decoration air-conditioner controller, the dust-proof design of knob is often required that.Especially on knob portion PCB Plucking number sign switch it is dust-proof.Referring to Fig. 1,1 periphery of knob turntable of existing knob portion is without adding the dust-proof wall construction signal of a circle Figure.Referring to fig. 2, such surface frame 2 and the gap location of knob turntable 1 have dust granule to enter interiors of products, see that arrow is shown The dust direction of motion, such dust granule can be flown on PCB electronic component, and the feel and function that will affect knob is used for a long time The problem of capable of failing.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of energy for the problems of prior art Meet the knob dustproof construction of functional requirement, saving cost and energy effective dust.

Technical problem to be solved in the utility model can be achieved through the following technical solutions:

A kind of knob dustproof construction, including knob, the knob include rotary turnplate, which is characterized in that in the knob The periphery of turntable is provided with the dust-proof wall of a circle, and the dust-proof wall is connected with the knob turntable.

In the preferred embodiment of the utility model, the knob is mounted in a surface frame, and the surface frame has pcb board, Toggle switch is provided on the pcb board, the gap between the bottom surface and the pcb board of the dust-proof wall is 0.5 ± 0.2mm.

In a preferred implementation example of the utility model, the inner peripheral surface of the dust-proof wall is opened in radial direction away from the code that pulls out The distance of pass is 1mm.

In a preferred implementation example of the utility model, the wall thickness of the dust-proof wall is 0.7 ± 0.2mm.

The knob dustproof construction of the utility model is to add the dust-proof wall of a circle in knob turntable periphery, effective solution surface frame Enter with the gap location dust granule of knob turntable and fall on the electronic component of interiors of products, long-time service will affect knob Feel and disabler the problem of.

The positive effect of the utility model is: dustproof construction provided by the utility model has the advantage that knot Structure scheme is simple, and cost is constant, and product function is stablized, and the quality requirement of product is met.

Detailed description of the invention

Fig. 1 is existing knob turntable without dust-proof wall construction schematic diagram.

Fig. 2 is existing knob turntable without dust-proof wall construction assembling schematic diagram.

Fig. 3 is that this practical knob turntable has dust-proof wall construction schematic diagram.

Fig. 4 is the dust-proof wall construction assembling schematic diagram of knob turntable provided by the utility model.

Specific embodiment

The utility model preferred embodiment is provided, with reference to the accompanying drawing the technical solution of the utility model is described in detail.

Fig. 3 is that knob turntable provided by the utility model has dust-proof wall construction schematic diagram, and Fig. 4 is provided by the utility model The dust-proof wall construction assembling schematic diagram of knob turntable.

As shown in Figures 3 and 4, knob dustproof construction shown in figure, including knob 10, the knob 10 include rotary turnplate 11 And some necessary component (these components and what no difference of Fig. 1 and knob shown in Fig. 2, nor the utility model Inventive point).The inventive point of the utility model is for effective solution surface frame 20 and 11 gap location dust granule of knob turntable Into and fall directly on the electronic component of pcb board 21, long-time service the problem of will affect the feel and function of knob；And Simultaneously be easy to cause automobile part function key fail the problem of and the periphery of knob turntable 11 is provided with the dust-proof wall 12 of a circle, prevent Dirt wall 12 is connected with knob turntable 11.

Knob 10 is mounted in a surface frame 20, and surface frame 20 has a pcb board 21, is provided with a toggle switch on pcb board 21 22 and some electronic components, the gap between the bottom surface and pcb board 21 of dust-proof wall 12 is 0.5 ± 0.2mm.The inner circumferential of dust-proof wall 12 Face is 1mm in distance of the radial direction away from plucking number sign switch 22.The wall thickness of dust-proof wall 12 is 0.7 ± 0.2mm.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (3)

1. a kind of knob dustproof construction: including knob, the knob includes knob turntable, which is characterized in that is turned in the knob The periphery of disk is provided with the dust-proof wall of a circle, and the dust-proof wall is connected with the knob turntable, and specifically, the dust-proof wall is The periphery of knob turntable is set and is linked together with knob turntable, wherein the knob is mounted in surface frame, the surface frame With pcb board, a toggle switch is provided on the pcb board, the gap between the bottom surface and the pcb board of the dust-proof wall is 0.5±0.2mm。

2. a kind of knob dustproof construction as described in claim 1, which is characterized in that the inner peripheral surface of the dust-proof wall is in radial direction away from institute The distance for stating plucking number sign switch is 1mm.

3. a kind of knob dustproof construction as claimed in claim 2, it is characterised in that the wall thickness of the dust-proof wall is 0.7 ± 0.2mm.