CN2615832Y

CN2615832Y - Pressure type variable resistance switch

Info

Publication number: CN2615832Y
Application number: CN 03204412
Authority: CN
Inventors: 徐巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-21
Filing date: 2003-02-21
Publication date: 2004-05-12
Anticipated expiration: 2013-02-21

Abstract

The utility model is a pressure variable resistor switcher, wherein a conductive rubber whose cross section is designed to an arc shape is arranged inside the head part of the silica gel cap. Two metal pins are arranged with two carbon film resistors which are adjacent but without contact and extended to each other. The metal pins make the conductive rubber suspend upon the two carbon film resistors. When outer force is added to the silica gel cap, the metal pins also make the head part move downward to provide the electrical conductive media contacting the two metal pins. Thereby the circuit impedance can be changed according to the bigness of the added force when the switcher is used.

Description

Pressure type variable resistor switch

Technical field

The utility model relates to a kind of pressure type variable resistor switch, particularly a kind of can be with the large and small pressure type variable resistor switch that changes circuit impedance of applying external force.

Background technology

Since the appearance of " ", people utilize its characteristic to create the electrical appliance that the human lives of satisfying of all kinds goes up different demands, and these electrical appliances have also brought convenience to a certain degree really; What can find is, we are for the dependence of electrical appliance, major part is to be based upon on the reason that it is controlled easily and biddability is high, and on reality is used, the work order that we assign at various electrical appliance normally is switched on or switched off the electric loop of each function by " switch " that be commonly called as, " button " or " button ", begin to carry out or stop to carry out certain work to reach.Hence one can see that, no matter be low price or costliness, simple in structure or complicated, all need to see through " switch " miscellaneous and command or the control apparatus articles for use, if there is not this design, can't reach the effectiveness of using this electrical appliance; Be with, its generality and importance are as seen general.

Yet, the importance and the diversity of switch (button or button) are as above sayed, structurally, big to as 20 o'clock TVs as the power switch control of size, little then as the little button on the door remote control device, though great difference is arranged on its external form, but have a common point, promptly all has the function that circuit is switched on or switched off, so traditional push-button switch only possesses the most basic function that the connecting and disconnecting circuit is arranged, as Fig. 8～shown in Figure 10.But sometimes, people's demand but is between all-pass and complete disconnected two certain situation between extreme, the push-button switch that the real non-above-mentioned tradition of this kind situation only has the ON/OFF kenel can be competent at, must arrange in pairs or groups in addition other circuit or structure, even the biconditional operation mode can not reached, as continuous pressure, put this two switch repeatedly, or continuing to press this two switch not put the mode of decontroling to a period of time achieves the goal, this kind of thought practice, not only must set up other electronic component in addition, and make structure more become complicated, and more will cause cost to increase on the other hand, impel product competitiveless.

Moreover with making rapid progress of development in science and technology now, electronic industry is at a tremendous pace especially, and all types of such as electronic products can have the motivation that multiple function is development with single article invariably, also are the directions that industry is made great efforts; Only above-mentioned traditional switch, though can reach the unlatching or the closed condition of control apparatus articles for use in the shirtsleeve operation mode, but can't further be broken through all the time on the function, so difficulty claims perfect design and the practicality of tool, the space that still remains further improvement.

Summary of the invention

Main purpose of the present utility model is to be to provide a kind of pressure type variable resistor switch, the conductive rubber that main cross section by a particular design is circular arc is incorporated into the silicon rubber cup inner face, and be suspended on and be equiped with the two relative but tops of discontiguous fixed carbon resister, and be connected with the switch module structure that a metal guide pin is arranged in pairs or groups and constituted respectively in the rear end of two fixed carbon resisters, use in utilization, making push-button switch has basic all-pass and the complete disconnected function except that possessing, other has increased with the external force that puts on silicon rubber cup big, little difference, make between two metal guide pins resistance value with the additional functionality that changes.

For reaching above-mentioned purpose, the designed pressure type variable resistor switch of the utility model is made up of loam cake, base and silicon rubber cup substantially; Establish one in loam cake central authorities and supply the circular hole of the head embedding of silicon rubber cup, its corner, bottom surface is arranged with column, and is equipped with the clip projection on the one group of relative side in bottom surface; This base can match with loam cake, its surperficial corner disposes respectively for column and wears the combined hole of location, and is formed with groove on one group of corresponding side, to hold being embedded of above-mentioned clip projection, organize in another again and be arranged with the metal guide pin on the corresponding side, and establish fixed carbon resister again; This silicon rubber cup is horn-like, its head protrudes is in the circular hole of loam cake, the silicon rubber cup body is coated on forms between loam cake and the base in conjunction with the location, head inner face in this silicon rubber cup is provided with the conductive rubber that a cross section is circular-arc design again again, forces head to move down when external force puts on silicon rubber cup to make conductive rubber with as the electrically conducting media of connecting between two metal guide pins is provided.By this in the use when external force applies or is continuously applied in head, can oppress the conductive rubber in it simultaneously, make it to be partly or entirely with two fixed carbon resisters, in addition with the contacted situation of two metal guide pins, to reach with the large and small effect that changes circuit impedance of external force.

For the ease of the constructing apparatus of this case, and other purpose and effect, the utility model is elaborated with instantiation below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the exploded view of the utility model one preferred embodiment;

Fig. 2 is the constitutional diagram of the utility model one preferred embodiment;

Fig. 3 is the cutaway view of the utility model one preferred embodiment;

Fig. 4 is the exploded view of another preferred embodiment of the utility model;

Fig. 5 is the constitutional diagram of another preferred embodiment of the utility model;

Fig. 6 is the cutaway view of another preferred embodiment of the utility model;

Fig. 7 is the action schematic diagram of another preferred embodiment of the utility model;

Fig. 8 is the cutaway view of a traditional push-button switch;

Fig. 9 is the cutaway view of another push-button switch of tradition;

Figure 10 is the action schematic diagram of another push-button switch of tradition.

Description of reference numerals: switch 1; Loam cake 10; Ring edge 101; Gland 102; Circular hole 11; Column 12; Clip projection 13; Base 20; Combined hole 21; Groove 22; Metal guide pin 23; Fixed carbon resister 24; Silicon rubber cup 30; Head 31; Perforation 32; Conductive rubber 33.

Embodiment

Please cooperate referring to Figure 1 and Figure 2, switch 1 by loam cake 10, base 20 and therebetween the silicon rubber cup 30 established of folder form; These loam cake 10 central authorities establish head 31 embeddings of a circular hole 11 for silicon rubber cup 30, and its corner, bottom surface then is arranged with column 12, and is equipped with clip projection 13 on one group of relative side of bottom surface.20 patterns of this base for being designed to match with loam cake 10, dispose combined hole 21 respectively in surperficial corner, the location that wears for above-mentioned column 12, and be formed with groove 22 respectively in one group of corresponding side wherein, to hold being embedded of above-mentioned clip projection 13, organize in another again that subdivision is provided with metal guide pin 23 on the corresponding side, and extend towards its direction in opposite directions and to be provided with a fixed carbon resister 24, and this two fixed carbon resister 24 is the kenel that does not contact with each other.30 of this silicon rubber cups are one to be the design of horn-like type body, its head 31 is the circular holes 11 that are stretched on loam cake 10, silicon rubber cup 30 bodies are coated on form between loam cake 10 and the base 20 in conjunction with the location, inner face in this head 31 is provided with the conductive rubber 33 that a cross section is circular-arc design again again, forces head 31 to move down when external force puts on silicon rubber cup 30 to make the conductive rubber 33 must be as the electrically conducting media of connecting 23 of two metal guide pins is provided.

Design according to said structure, in assembling, in regular turn silicon rubber cup 30, loam cake 10 are combined with base 20, at first the head 31 with silicon rubber cup 30 embeds the circular hole that is stretched on loam cake 10, and form in conjunction with the location in the column 12 embedding bases 20 corresponding combined holes 21 by loam cake 10 peripheries again, to finish assembling, as shown in Figure 2; So implementing in the use, then as shown in Figure 3, when no external force puts on silicon rubber cup 30, this conductive rubber 33 is suspended in head 31 inner faces and does not contact with base 20, at this moment, the relative fixed carbon resister 24 of being located at 23 of the two metal guide pins on base 20 surfaces is high impedance (being not on-state); When an external force puts on silicon rubber cup 30, two fixed carbon resisters 24 touch in advance in the central authorities that establish the conductive rubber 33 that is the arc surface design in its head 31 is forced to press down and makes, the electric current that is connected in a metal guide pin 23 this moment just can flow through whole fixed carbon resister 24 total lengths to be deducted the area that is touched and reaches another metal guide pin 23, and formation is not all-pass and more low-impedance electric loop state; If putting on the external force of silicon rubber cup 30 continues to increase, relative also will make conductive rubber 33 and fixed carbon resister 24 contacted areas increase, aforementioned electric current of being flowed through by a metal guide pin 23 is reduced because of the resistor area of fixed carbon resister 24, most of electric current flows to low-impedance conductive rubber 33 and arrives on another metal guide pin 23, and this moment, the total impedance of circuit also can continue to reduce; At last, when external force increases to certain limit, when making cambered surface whole covering two fixed carbon resisters 24 of this conductive rubber 33 and touching two metal guide pins 23, this electric current just can directly flow to another metal guide pin 23 by a metal guide pin 23 through conductive rubber 33, and this situation then is same as the all-pass state of conventional button switch.Thus, switch of the present utility model can be possessed outside the characteristics of the complete conducting of conventional button switch or disconnection, and increases the specific function that has with the large and small change circuit impedance of external force again, and with regard to functional, real non-traditional push-button switch can reach.

Please continue again and consult Fig. 4～Fig. 7, the above-mentioned pressure type variable resistor switch of the utility model has one in addition and implements kenel; Such as among Fig. 4 exposure, circular hole 11 peripheries of these loam cake 10 central authorities are formed with a ring edge 101, and in be embedded with a gland 102, these gland 102 inner faces then provide silicon rubber cup 30 head 31 set the location, as for other member comprise

base

20,30 of silicon rubber cups are same as above-mentioned; Use after assembling is finished, as Fig. 5, shown in Figure 6, when external force applies or is continuously applied in gland 102, can oppress head 31 and interior conductive rubber 33 thereof simultaneously, what make is part or all of with two fixed carbon resisters 24, even with two metal guide pins, 23 contacted situations, to reach with the large and small effect that changes circuit impedance of external force, as shown in Figure 7.

As shown in the above description, this case structure design characteristic and the effect of being reached thereof are to be: utilize a conductive rubber to be incorporated into the silicon rubber cup inner face, and be suspended on and be equiped with the two relative but tops of discontiguous fixed carbon resister, and be connected with the switch module structure that a metal guide pin is arranged in pairs or groups and constituted respectively in the rear end of two fixed carbon resisters, use in utilization, making push-button switch has basic all-pass and the complete disconnected function except that possessing, other has increased with the large and small difference of the external force that puts on silicon rubber cup, make between two metal guide pins resistance value with change.

The above only is preferable feasible embodiment of the present utility model, so the equivalent structure that all application the utility model specifications and claim are done changes, ought to be included in the protection range of the present utility model.

Claims

1, a kind of pressure type variable resistor switch, by loam cake, base and therebetween the silicon rubber cup established of folder form; These loam cake central authorities establish the head embedding of a circular hole for silicon rubber cup, and its corner, bottom surface then is arranged with column, and is equipped with the clip projection on one group of relative side of bottom surface; This base then dispose respectively in surperficial corner combined hole for column wear the location, and be formed with groove respectively in one group of corresponding side wherein, be embedded to hold the clip projection, organize in another again that subdivision is provided with the metal guide pin on the corresponding side; This silicon rubber cup is one to be horn-like type body, and its head protrudes is coated between loam cake and the base silicon rubber cup body and forms in conjunction with the location in the circular hole of loam cake, it is characterized in that:

Head inner face in silicon rubber cup is provided with the conductive rubber that a cross section is circular-arc design, and between two metal guide pins, extend and be provided with two adjacent and discontiguous fixed carbon resisters towards direction in opposite directions, and this conductive rubber is suspended in the top of two fixed carbon resisters, forces head to move down when making external force put on silicon rubber cup to make the conductive rubber must be as the electrically conducting media of connecting between two metal guide pins is provided.

2, pressure type variable resistor switch according to claim 1 wherein, can form a ring edge in loam cake central circular hole periphery, and the interior gland that is provided with again, the pressure type variable resistor switch that is combined into collocation silicon rubber cup, base.