CN200990348Y

CN200990348Y - Improved piezoelectric switch structure

Info

Publication number: CN200990348Y
Application number: CN 200620137267
Authority: CN
Inventors: 陈明仁
Original assignee: MAOXU INFORMATION CO Ltd
Current assignee: MAOXU INFORMATION CO Ltd
Priority date: 2006-09-28
Filing date: 2006-09-28
Publication date: 2007-12-12
Anticipated expiration: 2016-09-28

Abstract

The utility model relates to an advanced piezoelectricity switch structure, comprising a panel cover and a base. The hole is arranged on the panel board, and a plurality of arc convex ribs are arranged near the holes. The arc convex ribs are sunken on one side with a positioning part. Besides, the two arc convex ribs are provided with an entry port. The base has a body, and a plurality of convex ears is arranged around the base. The convex wall which has available space inside is arranged on one side of the body. After placing the light guide ring, the contact chip, the spring module, the piezoelectricity module and the circuit wafer in the space, the convex ears go into the panel cover entry and rotate afterwards. And the convex ears are stuck in the positioning part. Besides, the base bottom dose not go beyond the back of the panel cover after the jointing in pairs, and the piezoelectricity switch structure is on the way to getting thinner.

Description

Improved Piezoelectric switches structure

Technical field

The utility model relates to a kind of construction of switch, particularly a kind of Piezoelectric switches of thin typeization (PIEZO SWITCH) structure.

Background technology

Present employed construction of switch inside all has the mobile component of mechanicalness action, for example button cap, actuator, spring, conducting strip and two conducting terminals.After the button cap surface is by pressed by external force, thereby make actuator drive conducting strip and contact the formation conducting state with two conducting terminals, when the button cap surface is not pushed by external pressure, the elastic force of this spring itself can be with the actuator involution to original position, conducting strip is not contacted with two conducting terminals, thereby form not on-state.Because mechanical interlock easily makes construction of switch generation mechanical breakdown, perhaps produce problems such as spark, directly have influence on the control of load or cause the damage of load.

So the appearance of Piezoelectric switches structure (PIEZO SWITCH) has just been arranged, this Piezoelectric switches inside configuration has piezoelectric element, when the button of Piezoelectric switches is exerted pressure, this pressure can make piezoelectric element produce a vibration signal and transfer on the inner circuit board, by circuit board the signal that is received is transferred on the outside control circuit again, make Piezoelectric switches be able to the control load action.Because the Piezoelectric switches inside configuration is simple in structure, the mobile component that does not have the mechanicalness action, therefore many in all general traditional construction of switch reduction of problems such as fault, misoperation and generation spark, so the Piezoelectric switches structure is used in the switch control of calling out elevator, controlling automatically-controlled door, instrument or various electric boxs widely.

Known Piezoelectric switches structure, as be entitled as No. 5636729 U.S.'s patent of invention of " Piezoelectric switches (PIEZO SWITCH) ", wherein disclosed structure comprises housing cylindraceous, described cylinder shell inside disposes in regular turn and is cone shape button, piezoelectric element, light-emitting diode and circuit board.When button was exerted pressure by external force, described piezoelectric element produced a vibration signal and exports on the circuit board, and described circuit board can be lighted light-emitting diode, and received signal is transferred to outside control circuit, moved with control load.Though, this Piezoelectric switches structure does not have problems such as mechanical breakdown or generation spark in the use, but, because the cylinder shell of Piezoelectric switches structure itself has certain length, in the time of on being installed on wall, must reserve a groove on the wall of described building, or on wall, dig afterwards and establish a groove, perhaps dispose a box body, cylinder shell can be imbedded in the wall, perhaps be fixed on the wall surface at the panel cover rear of Piezoelectric switches.This form of construction work allows the constructor need spend more man-hour and operation, thereby causes the inconvenience in the construction.

The utility model content

Therefore, the defective in view of the conventional piezoelectric switch exists the utility model proposes a kind of new Piezoelectric switches structure.Improved Piezoelectric switches structure of the present utility model comprises:

Panel cover, which is provided with perforation, described perforation one end is provided with the retaining edge, have vertical fin and horizontal fin at the panel cover back side, has the arc fin at vertically fin and horizontal fin one end and near the perforated edge place, described arc fin one concave end has the location division, is formed with inlet between two arc fins;

Pedestal, it has circular body, and described body periphery has a plurality of lugs that are connected to described location division; Convex with protruding wall in pedestal one side, be formed with accommodation space in the described protruding wall, have a plurality of projections and perforation in the described accommodation space.

Compared with prior art, the beneficial effects of the utility model are, after the pedestal inside of construction of switch disposes leaded light ring, pressing tablet, elastic parts, piezoelectric element and circuit board in regular turn, again with the panel cover winding, pedestal after winding bottom can not exceed the back side of panel cover, makes the Piezoelectric switches structure level off to the purpose of thin typeization.When the Piezoelectric switches structure construction is installed on the wall, only need on wall, to bore an aperture, voltage supply electric switch structure lead passes through, thereby the Piezoelectric switches structure can be directly installed on the wall.

Description of drawings

Fig. 1 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model;

Fig. 2 is a combination stereoscopic schematic diagram of the present utility model;

Fig. 3 is the schematic diagram of pedestal of the present utility model and panel cover winding;

Fig. 4 is a pedestal spinning movement schematic diagram of the present utility model;

Fig. 5 is the section cross-sectional schematic of the hatching along Fig. 4 of the present utility model;

Fig. 6 is the local enlarged diagram of Fig. 5; And

Fig. 7 is a user mode schematic diagram of the present utility model.

In the accompanying drawing, the list of parts of each label representative is as follows:

Panel cover 1 perforation 11

Retaining edge 111 vertical fins 12

Horizontal fin 13 arc fins 121,131

Location division 122,132 inlets 14

15 second holes 16, first hole

Pedestal 2 bodies 21

Lug 22 horizontal segments 221

Vertical section 222 salient points 223

Opening 23 protruding walls 24

Accommodation space 25 projections 26

The 27 leaded light rings 3 of boring a hole

Ring body 31 skirt sections 32

Pressing tablet 4 curved surfaces 41

Plane 42 elastic partss 5

Ring body 51 presses piece 52

Elastic strip 53 piezoelectric elements 6

Circuit board 7 luminescence components 71

Lead 72 walls 8

Embodiment

Relevant detailed description of the present utility model and technology contents, existing conjunction with figs. is described as follows:

Fig. 1 and Fig. 2 are respectively STRUCTURE DECOMPOSITION schematic diagram of the present utility model and combination stereoscopic schematic diagram.As illustrated in fig. 1 and 2, improved Piezoelectric switches structure of the present utility model comprises: panel cover 1, pedestal 2, leaded light ring 3, pressing tablet 4, elastic parts 5, piezoelectric element (piezo-electric switch) 6 and circuit board 7.Leaded light ring 3, pressing tablet 4, elastic parts 5, piezoelectric element 6 and circuit board 7 are connected to pedestal 2 inside, and with pedestal 2 and panel cover 1 winding, pedestal 2 bottoms after the winding can not exceed panel cover 1 back side again, to form the Piezoelectric switches structure of slimming.

Panel cover 1 is provided with

perforation

11, and 11 1 ends of boring a hole are provided with retaining edge 111, and retaining edge 111 is in order to keep out the assembly that is connected between panel cover 1 and the pedestal 2.Have vertical fin 12 and horizontal fin 13 at panel cover 11 back sides, have arc fin 121 and 131 at vertically fin 12 and horizontal fin 13 1 ends and near the edge of perforation 11.Arc

fin

121 and 131 1 concave ends have a L shaped breach, and L shaped breach is in order to form location division 122,132.Between arc fin 121 and 131, be formed with inlet 14.The lug 22 of pedestal 2 turns clockwise after being entered by inlet 14, and lug 22 clips that make pedestal 2 are in location division 122,132.First hole 15 and second hole 16 that on the panel cover 11 of inlet 14 and location division 122,133, have different inner diameters.

Pedestal 2 has circular body 21, body 21 peripheries have a plurality of lugs 22 that are connected to location division 122,132, lug 22 has the horizontal segment of accepting with body 21 221, horizontal segment 221 1 ends are and are connected to vertical section 222, and vertical section 222 and body 21 edges are formed with the opening 23 of winding arc fin 121 and 131.Horizontal segment 221 back sides have salient point 223, after the lug 22 of pedestal 2 is entered by inlet 14, salient point 223 is arranged in first hole 15 earlier, after turning clockwise, lug 22 clips that make pedestal 2 are in location division 122,132, salient point 223 is slipped in second hole 16 by first hole 15 simultaneously, gets loose to prevent pedestal 2.Convex with protruding wall 24 in pedestal 2 one sides, be formed with accommodation space 25 in the protruding wall 24, have a plurality of projections 26 in the accommodation space 25 and bore a hole 27, in order to fixing circuit board 7, and the periphery of a plurality of projection 2 is in order to ccontaining leaded light ring 3 in a plurality of projections 26.

Leaded light ring 3 is configured between panel cover 1 and the pedestal 2, and is made by transparent material, has ring body 31 on it, and ring body 31 1 sides have skirt section 32, and skirt section 32 is disposed at a plurality of projections 26 peripheries.Skirt section 32 is dentation in this figure.

Pressing tablet 4 is a slice, and it is disposed in the leaded light ring 3, has the curved surfaces 41 for finger presses on it, and another side then is a plane 42, and plane 42 contacts with elastic parts 5.

Elastic parts 5 is disposed between panel cover 1 and the pedestal 2, and is positioned at pressing tablet 4 belows, has a ring body 51 on it, and ring body 51 centre have one and press piece 52, ring body 51 and press the elastic strip 53 that 52 of pieces are connected with a plurality of S-shaped shapes.

Piezoelectric element 6 is to be disposed between panel cover 1 and the pedestal 2, and is positioned at elastic parts 5 belows, and is electrically connected with circuit board 7, and piezoelectric element 6 is a conventional art, thereby does not repeat them here, and exports on the circuit board 7 in order to an oscillator signal to be provided.

Circuit board 7 is disposed between panel cover 1 and the pedestal 2, and is electrically connected with piezoelectric element 6, and the circuit on the circuit board 7 is that conventional art does not repeat them here.Have a plurality of luminescence components 71 and a plurality of lead 72 on the circuit board 7, when Piezoelectric switches was exerted pressure by external force, piezoelectric element 6 promptly produced a signal and exports circuit board 7 to, with 7 actions of start-up circuit plate, light luminescence component 71 simultaneously, the light that luminescence component 71 is produced is directed on the panel cover 1 by leaded light ring 3.Luminescence component 71 is a light-emitting diode in this figure.

Fig. 3 is the schematic diagram of pedestal of the present utility model and panel cover winding, and Fig. 4 is a pedestal spinning movement schematic diagram of the present utility model.As shown in Figure 3 and Figure 4, after leaded light ring 3, pressing tablet 4, elastic parts 5, piezoelectric element 6 and circuit board 7 are formed an inner press-key structure in regular turn, and then assembly is in accommodation space 25 inside of pedestal 2.When perforation 11 windings of pedestal 2 and panel cover 1, after the lug 22 of pedestal 2 is entered and is turned clockwise by inlet 14, horizontal segment 221 clips of the lug 22 of pedestal 2 are in location division 122,132, arc fin 121,131 1 end clips make leaded light ring 3, pressing tablet 4, elastic parts 5, piezoelectric element 6 and circuit board 7 winding closely between panel cover 1 and pedestal 2 in vertical section 222 and the formed opening 23 in body 21 edges simultaneously.After pedestal 2 and panel cover 1 winding, the bottom of pedestal 2 and panel cover 1 back side periphery coexist on the plane, with the piezoelectric type construction of switch of formation slimming.

Fig. 5 is the section cross-sectional schematic of the hatching along Fig. 4 of the present utility model, and Fig. 6 is the local enlarged diagram of Fig. 5.When the pressing tablet 4 of Piezoelectric switches is stressed when pressing, pressing tablet 4 presses elastic parts 5, and the piece 52 that presses of elastic parts 5 presses on piezoelectric element 6, makes piezoelectric element 6 produce a signal and transfers on the circuit board 7.After circuit board 7 receives this signal, circuit board 7 is transmitted in the external control circuit (not shown) with this signal by lead 72, light luminescence component 71 simultaneously, the light that luminescence component 71 is produced promptly shines the skirt section 32 of leaded light ring 3, by skirt section 32 light is directed on the ring body 31 again, at this moment a visible ring-type light source on panel cover 1.And, when circuit board 7 transfers to external control circuit with signal, move by the external control circuit control load.

Fig. 7 is a user mode schematic diagram of the present utility model.As shown in Figure 7, when Piezoelectric switches structure of the present utility model was installed on the wall 8, wall 8 needed boring 81, so that the lead 72 of Piezoelectric switches structure can pass, the constructor can the Piezoelectric switches structure must be installed on the wall 8 easily.

Above-mentioned is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Every equalization of being done in claim of the present utility model changes and modifies, and all is included in the claim of the present utility model.

Claims

1. improved Piezoelectric switches structure that is used to assemble press-key structure is characterized in that comprising:

Panel cover which is provided with perforation, has a plurality of arc fins at its back side near the perforated edge place, and a concave end of described arc fin has the location division, and is formed with inlet between two arc fins;

Pedestal, it has body, and described body periphery has a plurality of lugs that are connected to described location division, has the accommodation space of ccontaining press-key structure in a side of described pedestal;

Wherein, after the lug of described pedestal is entered by the inlet of described panel cover and rotates, even the lug clip is in the location division.

2. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that, described perforation one end is provided with the retaining edge.

3. improved Piezoelectric switches structure as claimed in claim 1 or 2 is characterized in that the back side of described panel cover has vertical fin and horizontal fin, has the arc fin at vertically fin and horizontal fin one end and near the perforated edge place.

4. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that, the L-shaped nick shaped in described location division.

5. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that, has first hole and second hole of different inner diameters on the panel cover of described inlet and described location division.

6. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that, described body is circular.

7. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that described lug has horizontal segment, and described horizontal segment one end is and is connected to vertical section, and described vertical section and body edges are formed with opening.

8. improved Piezoelectric switches structure as claimed in claim 7 is characterized in that the described horizontal segment back side has salient point.

9. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that, a side of described pedestal has protruding wall, and described protruding wall forms accommodation space.

10. as claim 1 or 9 described improved Piezoelectric switches structures, it is characterized in that having a plurality of projections and a plurality of perforation in the described accommodation space.

11. improved Piezoelectric switches structure as claimed in claim 1 is characterized in that described press-key structure is made up of leaded light ring, pressing tablet, elastic parts, piezoelectric element and circuit board.