CN212750664U

CN212750664U - High-stability key structure of integrated multi-region annunciator

Info

Publication number: CN212750664U
Application number: CN202021933553.XU
Authority: CN
Inventors: 孙友明
Original assignee: Feilang Tianjin Aviation Technology Co ltd
Current assignee: Feilang Tianjin Aviation Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-03-19
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a key structure of an integrated multi-area annunciator with high stability, which comprises a key head, a silica gel gasket, a mark film, a transparent insert, a copper nut, an optical filter, an astigmatism piece, a key base, a screw, a silica gel pad cap, a main PCB of a light guide control panel, a touch switch, a single PIN connector, an annunciator PCB, an LED and a light guide panel, the silica gel washer is arranged on the flange surface of the key head, the identification film is adhered to the upper surface of the transparent insert, the copper nut is embedded into the key head, the key head is sleeved on the key base, the transparent insert is stuck in the step groove of the key base through the copper nut and the screw, the optical filter and the light diffuser are sequentially adhered to the lower surface of the transparent insert from top to bottom in the key base, and a plurality of annunciators are integrated to express complex key functions; the failure rate of the light-emitting circuit is low, and the stability is high; the sign tectorial membrane is removable, conveniently reprocesses and reforms transform.

Description

High-stability key structure of integrated multi-region annunciator

Technical Field

The utility model relates to a button structure, concretely relates to high integrated multizone annunciator's of stability button structure.

Background

In recent years, with the trend of designing and manufacturing integrated modules of onboard equipment and components of an airplane, the application of a cockpit light guide panel is gradually developed from a separated structure of a light guide panel, a annunciator and a switch key to a light guide control panel integrating the switch key and the annunciator.

At present, the keys of the light guide control panel are commonly integrated with a annunciator, and the structure can display a plurality of states of one function of the keys through the on-off or luminous color of the annunciator and can not display a plurality of functions of the keys.

In addition, the annunciator keys of the light directing control panel typically integrate the light source within the keys, which are then connected to the light directing control panel main PCB by flexible PCBs or wires. The flexible PCB or the wire can deform along with the key actuation. As the number of key presses increases, repeated deformation and recovery of the flexible PCB or wire may break the copper foil or wire core, causing a malfunction of the annunciator.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a key structure of an integrated multi-zone signal with high stability.

According to the technical scheme provided by the embodiment of the application, the key structure of the integrated multi-region annunciator with high stability comprises a key head, a silica gel gasket, a mark covering film, a transparent insert, a copper nut, an optical filter, an optical diffuser, a key base, a screw, a silica gel pad cap, a main PCB of a light guide control panel, a touch switch, a single PIN connector, an annunciator PCB, an LED and a light guide panel, wherein the silica gel gasket is arranged on a flange surface of the key head, the mark covering film is adhered to the upper surface of the transparent insert, the copper nut is embedded into the key head, the key head is sleeved on the key base and is fixed together through the copper nut and the screw, the transparent insert is adhered in a step groove of the key base, the optical filter and the optical diffuser are sequentially adhered to the lower surface of the transparent insert from top to bottom inside the key base, the silica gel pad cap is installed the protruding surface of button base, LED with the welding of annunciator PCB is in the same place, through single PIN connector handle annunciator PCB with the welding of the main PCB of light guide control panel is in the same place, touch switch welds on the main PCB of light guide control panel, is located the annunciator button under.

The utility model discloses in, the material according to the key head is black light tight plastics, is equipped with the big blank that has the step groove on it, press the key head nestification to be in above the button base, constitute the button assembly body, the button assembly body is located lead the button inslot of light panel.

The utility model discloses in, the silica gel packing ring be used for sealed button assembly body with lead the clearance between the main PCB of light control panel.

The utility model discloses in, silica gel pad cap and touch switch contact, the silica gel pad cap that can the different thickness of adaptation of optional compensates and adjusts the button stroke.

The utility model discloses in, the sign tectorial membrane is a plastic film, and the surface has the signal ware sign through special treatment, and whether the content, quantity and the position of sign design for conventional sign or have the sign of "die" effect according to actual need, the appearance of sign tectorial membrane with the appearance of transparent inserts is unanimous, pastes the upper surface of transparent inserts.

The utility model discloses in, the material of transparent inserts is transparent organic glass, is equipped with a plurality of blank on it, and the blank passes through black opaque material to be separated, the quantity and the shape of blank with the inside blank of button base is unanimous, transparent inserts is pasted button base's step inslot, with epoxy sealed periphery.

The utility model discloses in, the copper nut is according to the embedding of diagonal direction press the button head, the screw passes button base screw in the copper nut, the button base with link together according to the button head.

The utility model discloses in, the appearance of light filter and astigmatism piece with the blank appearance of button base is unanimous, pastes from the top down in proper order the lower surface of transparent inserts. The using positions of the optical filter and the light-diffusing sheet are adjusted according to actual requirements.

The utility model discloses in, key base's material is black light tight plastics, and its inside has a plurality of blank, key base's thickness can prevent the annunciator light leak.

To sum up, the beneficial effect of this application: integrating a plurality of annunciators to express complex key functions; the failure rate of the light-emitting circuit is low, and the stability is high; the sign tectorial membrane is removable, conveniently reprocesses and reforms transform.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural exploded view of the present invention;

fig. 3 is an assembly diagram of the present invention and a light guide control panel.

Reference numbers in the figures: the key comprises a key head-1, silica gel-2, a mark coating-3, a transparent insert-4, a copper nut-5, an optical filter-6, a light diffuser-7, a key base-8, a screw-9, a silica gel pad cap-10, a light guide control panel main-PCB 11, a touch switch-12, a single PIN connector-13, a signaler PCB-14, an LED-15 and a light guide panel-16.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-3, a high-stability key structure of an integrated multi-domain annunciator includes a key head 1, a silicone gasket 2, a mark covering film 3, a transparent insert 4, a copper nut 5, an optical filter 6, an optical diffuser 7, a key base 8, a screw 9, a silicone gasket cap 10, a main PCB11 of a light guide control panel, a touch switch 12, a single PIN connector 13, an annunciator PCB14, an LED15 and a light guide panel 16, wherein the silicone gasket 2 is mounted on a flange surface of the key head 1, the mark covering film 3 is adhered on an upper surface of the transparent insert 4, the copper nut 5 is embedded in the key head 1, the key head 1 is sleeved on the key base 8 and fixed together by the copper nut 5 and the screw 9, the transparent insert 4 is adhered in a step groove of the key base 8, the optical filter 6 and the optical diffuser 7 are sequentially adhered on a lower surface of the transparent insert 4 from inside the key base 8, the silica gel pad cap 10 is installed on the convex surface of the key base 8, the LED15 is welded with the annunciator PCB14, the annunciator PCB14 is welded with the light guide control panel main PCB11 through the single PIN connector 13, and the touch switch 12 is welded on the light guide control panel main PCB11 and is located right below the annunciator key.

The key head 1 is made of black light-tight plastic, a large blank with a step groove is arranged on the key head 1, the key head 1 is embedded on the key base 8 to form a key assembly, and the key assembly is located in the key groove of the light guide panel 16. The identification film 3 is a plastic film and is provided with a signal device identification, the appearance of the identification film 3 is consistent with that of the transparent insert 4, and the identification film is adhered to the upper surface of the transparent insert 4. The transparent insert 4 is made of transparent organic glass and is divided into a plurality of areas by black opaque materials, the number and the shape of the areas are consistent with those of the blank spaces inside the key base 8, and the transparent insert 4 is adhered to the step grooves of the key base 8. The copper nut 5 is embedded into the key head 1, and the screw 9 penetrates through the key base 8 and is screwed into the copper nut 5 to connect the key base 8 and the key head 1 together. The shapes of the optical filter 6 and the light diffuser 7 are consistent with the blank shapes of the key base 8, and the optical filter and the light diffuser are sequentially adhered to the lower surface of the transparent insert 4 from top to bottom. The key base 8 is made of black opaque plastic and is internally provided with a plurality of blank spaces. The annunciator PCBs 14 are the light emitting circuits of the annunciators, one for each annunciator PCB 14. An annunciator includes a rigid annunciator PCB14 and a plurality of light emitting elements uniformly positioned in the position of the annunciator indicia, directly beneath the indicia. Each of the signals is connected to the light directing control panel main PCB11 by two single PIN connectors 13. Two single PIN connectors 13 define a power supply and a return, respectively, for powering the light emitting elements. The light-emitting elements are connected in parallel to meet the requirement of light-emitting margin. The shape of the annunciator PCB14 is similar to the shape of the internal space of the key base 8 but is slightly smaller, so that the light emitting element can be enclosed in the key as much as possible, and light can be prevented from leaking out of the bottom of the key. The single PIN connector 13, in addition to providing circuit connections, also supports the annunciator PCB14 into the space of the key base. The tact switch 12 is soldered to the light guide control panel main PCB11 directly below the annunciator keys.

The key assembly is mounted on the light guide panel 16, the annunciator PCB14 is inserted into the space of the key base 8, the silicone pad cap 10 is pressed against the trigger switch 12, the key force and the key stroke are measured, and if the key force and the key stroke are not qualified, the main PCB11 of the light guide control panel is detached, and the thickness of the silicone pad cap 10 is adjusted.

The main PCB11 of the light guide control panel is electrified to drive different annunciator PCBs 14 to emit light, so that different annunciators on the keys are lightened. The annunciator PCB14 is fixed on the main PCB11 of the light guide control panel and does not act along with the key, thus ensuring that the light-emitting circuit is not easy to break down.

The foregoing description is only exemplary of the preferred embodiments of the application and is provided for the purpose of illustrating the general principles of the technology and the like. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described technical features, and other technical features that are arbitrarily combined with each other or equivalent features may be included without departing from the scope of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a high integrated multizone annunciator's of stability button structure, includes button head (1), silicone gasket (2), sign tectorial membrane (3), transparent inserts (4), copper nut (5), light filter (6), light diffuser (7), key base (8), screw (9), silica gel pad cap (10), light guide control panel owner PCB (11), touch switch (12), single PIN connector (13), annunciator PCB (14), LED (15), light guide panel (16), characterized by: silica gel gasket (2) is installed on the flange face of button head (1), sign tectorial membrane (3) are pasted the upper surface of transparent inserts (4), copper nut (5) embedding in button head (1), press button head (1) cover on button base (8), and pass through copper nut (5) and screw (9) are fixed together, transparent inserts (4) glue in the step groove of button base (8), light filter (6) with slide diffuser (7) are followed button base (8) is inside from the top down paste in proper order the lower surface of transparent inserts (4), silica gel pad cap (10) are installed the protruding surface of button base (8), LED (15) with annunciator PCB (14) welding together, through single PIN connector (13) with annunciator PCB (14) with light guide control panel owner PCB (11) welding together, the touch switch (12) is welded on the main PCB (11) of the light guide control panel and is positioned right below the annunciator key.

2. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the key head (1) is made of black light-tight plastic, a large blank with a step groove is arranged on the key head, the key head (1) is embedded on the key base (8) to form a key assembly, and the key assembly is located in the key groove of the light guide panel (16).

3. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the identification coating (3) is a plastic film, a annunciator identification is arranged on the identification coating, the shape of the identification coating (3) is consistent with that of the transparent insert (4), and the identification coating is adhered to the upper surface of the transparent insert (4).

4. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the material of transparent inserts (4) is transparent organic glass, is separated for a plurality of regions by black opaque material on it, regional quantity and shape with the blank of key base (8) inside is unanimous, transparent inserts (4) are pasted in the step groove of key base (8).

5. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the copper nut (5) is embedded into the key head (1), the screw (9) penetrates through the key base (8) and is screwed into the copper nut (5), and the key base (8) is connected with the key head (1).

6. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the shapes of the optical filter (6) and the light diffuser (7) are consistent with the blank shapes of the key base (8), and the optical filter and the light diffuser are sequentially adhered to the lower surface of the transparent insert (4) from top to bottom.

7. The key structure of integrated multi-domain annunciator with high stability as claimed in claim 1, wherein: the key base (8) is made of black light-tight plastic and is internally provided with a plurality of blank spaces.