BR202013015525U2 - Layout introduced in washing machine drive panel - Google Patents

Abstract

Arrangement introduced in a washing machine drive panel comprising a transparent drive panel. Which projects on the upper face, function keys forming a subset. Characterized by the subassembly on its lower face receiving a transferable adhesive on which an insulating and flexible circuit is fixed, whose lower face is provided with preferably copper metal film which through the corrosion process, forms contact keys, with or without lighting reliefs that are concentrically positioned under the function keys and communicating with contact points. Being the insulating and flexible circuit also on the underside provided with relievable final transferable adhesive surrounding the contact points which in turn establishes the compression of a conductive spring that passes freely through the control panel being rigidly fixed on the printed circuit board. of the mounted panel.

Description

"WASHING MACHINE DRIVING PANEL" Arrangement of the present utility model patent refers to a "WASHING MACHINE DRIVING PANEL" which has been developed with a view to securing better performance in the industry. Normally open key contact and key switch on the washing drive panel, thus ensuring longer control panel life. i There are currently on the market refrigerators and washing machines that use drive panel whose upper face projects several function keys, which respectively switch each contact key, so when the user touches the function key, A normally open capacitive switch “NA” on the machine's control panel is converted to normally closed, putting the machine into operation in its function.

It is important to note that in this drive panel on the market, the contact keys, arranged under the function keys and on the underside of the drive panel, as well as the contact points, are made of carbon-coated silver inks, both conductive and is in contact with a conductive spring which has its other end fixed rigidly to a printed circuit board belonging to the control panel of the washer.

It happens that when the machine is in operation, all vibration produced by the agitation and centrifugation, is reflected in the conductive spring that rubbed in the contact point, causes the wear of the silver and carbon ink, thus causing the interruption and the malfunction of the contact key, the result of which is the inactivity of the function key, with the consequent shutdown of the washing machine.

Another huge problem with current models is that contact key printing, made with silver and conductive carbon ink, is done over multiple layers of inks, arranged under the drive panel, and so these inks must be pre-printed. silver and carbon paint, have high ohmic resistance, that is, have very low conductivity, under penalty of shorting all contact keys, this is called isolation between contact keys, which insulation has to reach high levels measured in mega ohms. Insulation is further compromised when, prior to the silver and carbon inks, both conductive and forming contact keys, metallic inks are used, since they have metallic pigments, thus making electrical isolation between the contact keys difficult.

In order to solve the problem, the inventor developed "WASHING MACHINE DRIVING PANEL ARRANGEMENT" comprised of a transparent drive panel that projects on the upper face, function keys forming a subset, characterized by the subset in its lower face receives a transferable adhesive on which an insulating and flexible circuit is fixed, the lower face of which is preferably copper foil which, through the corrosion process, forms contact keys, with or without light relief which are concentrically positioned under the function keys and contact point communicators, the insulating and flexible circuit being also on the underside provided with relievable final transferable adhesive surrounding the contact points which in turn compresses a conductive spring which it passes freely through the control panel and is rigidly fixed to the circuit board. Printed panel mounted.

In a derivative arrangement the subassembly on its underside receives a transferable adhesive, the underside of which incorporates conductive metal contact plaques and communicating contact points with no light relief, and concentric function keys, the platelets being The contact points are seated in the recessed cavities in the control panel, with the spring contact coming from the printed circuit in contact with the contact point by compression.

In order to understand what has been developed, illustrative drawings are attached to which reference is made in conjunction with the following detailed description, where: Figure 1 is a perspective view of the assembled assembly. Figure 2 shows a perspective view of the subset (X) with the transferable adhesive. Figure 3 is an exploded perspective view of the subset (X) with the transferable adhesive. Figure 4 shows a top exploded perspective view of the subassembly (X) with the transferable adhesive and the flexible insulating circuit and the final transferable adhesive. Figure 5 shows a bottom exploded perspective view of the subassembly (X) with the transferable adhesive and the flexible insulating circuit and the final transferable adhesive. Figure 6 shows a bottom exploded perspective view of the subassembly (X) with the transferable adhesive with the contact platelets. Figure 7 shows a top exploded perspective view of the subassembly (X) with the transferable adhesive with the contact platelets. Figure 8 shows a perspective view of the subset (X) with the transferable adhesive with the contact platelets. Figure 9 is an exploded perspective view of the assembly alluding to the recessed cavities.

As the drawings infer the “PROVISION INTRODUCED

WASHING MACHINE DRIVE PANEL ”comprising a transparent drive panel (1) projecting on the upper face (51), function keys (2) forming a subset (X), characterized by the subset (X) on its lower face (Y) receive a transferable adhesive (3) on which an insulating and flexible circuit (4) is fixed, whose lower face (5) is provided with preferably copper metal foil which through the corrosion process, forms contact keys (6) with or without light relief (7) which are positioned concentrically under the function keys (2) and communicating with contact points (8), the insulating and flexible circuit (4) being also in the lower face (5) provided with final transferable adhesive (9) with relief (10) surrounding the contact points (8) which in turn establishes compression contact with a conductive spring (11) which passes freely through the control panel. (12), being rigidly fixed to the plate circuit board (13) of the mounted panel (P).

In a derivative arrangement the subset (X) on its underside (Y) receives a transferable adhesive (3) whose underside (55) incorporates conductive metal contact plates (14) and communicating with contact points (8) without illumination relief (7), and the function keys (2) are concentric, with the contact plates (14) being seated in the recessed cavities (15) in the control panel (12), with the spring contact ( 11) coming from the printed circuit (13) in contact, by compression, with the point of contact (8).

Based on what is described and illustrated, we can see that the “WASHING MACHINE DRIVING PANEL ARRANGEMENT” has enormous advantages as it provides a functional improvement to the product due to the contact keys (6) as well as the touch points. (8), now formed by a layer of metal preferably copper belonging to an insulating and flexible circuit (4), so there is no way that the conductive spring (11) by the frictional effort, break the conductivity of the contact point (8). ) which will have a long service life when compared to the traditional system where the contact points (8) are silver and carbon conductive both conductive, and the exclusion of the flexible circuit (4), including the contact platelets ( 14), also guarantees the service life of the contact point (8) which, being of metal, will not suffer wear caused by the friction of the conductive spring (11).

Thus, by meeting all the requirements that define the utility model patent, because it combined and modified known elements, giving them an innovative and industrializable general aspect with advantages in use and extending the life of the drive panel. Modifications may be made without departing from the spirit and scope of the present invention.

CLAIM

Claims (2)

1- "WASHING MACHINE DRIVING PANEL ARRANGEMENT" comprising a transparent drive panel (1) projecting on the upper face (51), function keys (2) forming a subset (X), characterized by A subassembly (X) on its lower face (Y) is provided with a transferable adhesive (3) on which a flexible insulating circuit (4) is fixed, the lower face (5) of which is preferably covered with copper foil which through the corrosion process, it forms contact keys (6), with or without light relief (7) which are positioned concentrically under the function keys (2) and communicating with contact points (8), making the insulating and flexible circuit ( 4) also on the underside (5) provided with final transferable adhesive (9) with relief (10) surrounding the contact points (8) which in turn establishes compressive contact with a freely passing conductive spring (11) by the control panel (12) being rigidly fixed to the printed circuit board (13) of the mounted panel (P). 2. The arrangement introduced in a washing machine drive panel according to claim 1 wherein the subset (X) on its underside (Y) receives a transferable adhesive (3), the underside of which (55) incorporates contact plates (14) are conductive metal and communicating with contact points (8) with no light relief (7), and concentric function keys (2), with contact plates (14) being seated in the recessed cavities (15) in the control panel (12), the spring contact (11) coming from the printed circuit (13) in contact with the contact point (8).