CN101150025B

CN101150025B - Tilt switch

Info

Publication number: CN101150025B
Application number: CN2006101275007A
Authority: CN
Inventors: 洪文仁
Original assignee: Taiwan Misaki Electronics Co Ltd
Current assignee: Taiwan Semiconductor Manufacturing Co TSMC Ltd; Taiwan Misaki Electronics Co Ltd
Priority date: 2006-09-20
Filing date: 2006-09-20
Publication date: 2011-04-13
Anticipated expiration: 2026-09-20
Also published as: CN101150025A

Abstract

This invention relates to a slant switch including: a cover, a base, a pair of first and second terminals and a contact ball, in which, the cover and the base form a shape with empty inside to contain the contact ball, the pair of terminals pass through the hole at one side of the base to the base, so a difference appears to the height and passed length to the terminals, the contact ball closes to the second terminal at normal state, when the cover side of the base is lifted, the ball contacts with the second terminal first and then to the first one to form a close loop, when the base slants inversely, the ball breaks away from the first terminal to switch the loop, the slant switch is supported by three terminals, and difference are generated to them due to the height of set positions and length to the base, then angle for contacting the contact ball and the first terminal can be changed by changing the set difference or adjusting the height of leading strips set inside of the base surface.

Description

Tilt switch

Technical field

The present invention relates to a kind of tilt switch, refer to especially when the base of switch tilts, produce the tilt switch of closed-loop path by contact ball in this base and termination contact.

Background technology

Present known tilt switch is as the ball vibroswitch of No. 468865 bulletin of TaiWan, China.Its structure is made of a chock, a cylindrical sleeve, a ball and two pairs of terminals, plane graph after its combination is finished as shown in Figure 1, its longitudinal sectional drawing as shown in Figure 2, its transverse cross-sectional view then as shown in Figure 3, this spin vibroswitch is vertical vertically disposed user mode in use.

The opening part of sleeve blocks with chock, and the room that sleeve and chock form is placed spin, and sleeve is provided with perforation with respect to opening one end, stretches through in the room for a plurality of terminals.The room bottom of this sleeve is positioned at the perforation top and is formed with a path section, this room top is formed with a big footpath section, the convergent one undergauge section that tilts from the top down then is set between big footpath section root edge and path section apical margin, make and form a conical surface angle, and the conical surface angle initialization of this undergauge section is close with the termination contact shear-face angle, when spin rolls out above-mentioned conical surface angle and contacts shear-face angle, can guarantee that switch is disconnection (OFF) state, and when spin rolls into above-mentioned conical surface angle and contacts shear-face angle, spin promptly drops down onto on four terminals, make and guarantee that switch is connection and opens (ON) state, to keep conducting.Wherein, the conical surface angle of this undergauge section is during more than or equal to 45 °, makes this spin vibroswitch constitute the ON state.Otherwise the conical surface angle of this undergauge section is during less than 45 °, makes this spin vibroswitch constitute the OFF state.

Present known ball vibroswitch as mentioned above, the ON of switch wherein, OFF is that the angle according to the undergauge section conical surface is greater than or less than 45 ° and decide, then the inclination angle is its critical angle for 45 °, if if its unlatching angle of inclination of the user of this switch is just when 45 ° of left and right sides, the phenomenon of breaking when continuing when then this switch might occur, this one.Secondly, the number of terminals of its use is four, with mechanics principle, when ball dissolves in this four terminal, this ball is also unstable, that is to say phenomenon disconnected when this switch is also continuous sometimes, so all have and keep stable requirement no matter this switch is in the state of ON or OFF, event is provided with the position and quantity is set terminal, and the space of improvement is all arranged.

Summary of the invention

The present invention is directed to aforesaid shortcoming improves, provide a kind of tilt switch can make the stable contact of contact ball, but also can adjust the ON of switch, the angle of inclination of OFF state, its improvement comprises: (one) changes number of terminals into 3, according to mechanics principle, three-point support is the most stable, in case ball falls in the terminal, then be in stable state, the phenomenon of breaking when continuing when not having; (2) section of adjusting between terminal is poor, and so, the angle of inclination of the ON of switch, OFF state not only is defined in 45 °, can adjust the section difference and change required angle of inclination according to actual needs, can make the required angle of inclination of ON, OFF inequality again.

Tilt switch of the present invention, it comprises: hollow and have the base of diapire; Seal the lid of this base openings; Be arranged on this base bottom wall and a plurality of fixed terminals from stretching out running through of diapire, these a plurality of fixed terminals along continuous straight runs in base extends in parallel; And, rollably be contained in the contact ball of this base inside as movable contact assembly; Described a plurality of terminal is three terminals of a pair of the first terminal and one second terminal, is configured on the diapire of this base with upside-down triangle shape as leg-of-mutton three summits respectively; Wherein this second terminal is positioned at the below, highlands such as this a pair of the first terminal are arranged on this second terminal top, when this tilt switch is horizontally disposed with, this contact ball does not contact with this a pair of the first terminal, lift when lid one side of this tilt switch and to reach predetermined angular, this contact ball rolls, and contacts with this a pair of the first terminal and this second terminal.

The length that this second terminal is given prominence to from base bottom wall greater than this a pair of the first terminal from the outstanding length of base bottom wall in base.

Internal perisporium at this base is equipped with in order to guide the director strip of this contact ball corresponding to the inwall of this second terminal, one side.

The triangle that these three terminals form is an equilateral triangle, and its external diameter of a circle is less than the diameter of this contact ball.

The triangle that these three terminals form is for being the isosceles triangle of drift angle with second terminal, and its external diameter of a circle is less than the diameter of this contact ball.

This a pair of the first terminal is a plus end, and this second terminal is a negative terminal.

This a pair of the first terminal is a negative terminal, and this second terminal is a plus end.

In these three terminals at least one can freely be adjusted with respect to the outstanding length of base inside.

This director strip and this second terminal be arranged in parallel.

This director strip and base constitute one.

This director strip is for can load and unload director strip.

The function of tilt switch of the present invention is: this tilt switch horizontal major axis when normal condition is a level, this interior contact ball of this base this moment only can or not contact with this second termination contact, and do not contact with a pair of the first terminal, end as lid is up carried, that is this switch is when beginning to tilt, this contact ball rolls and this second termination contact, and be fulcrum with this second terminal, this contact ball center of gravity begins lifting, when the center of gravity of this contact ball is increased to predetermined altitude, promptly, when the center of gravity vertical line is crossed fulcrum on this second terminal, this contact ball just rolls and falls into this a pair of the first terminal and the formed triangle of this second terminal, and with three termination contact, finish the closure in loop.At this moment, if this tilt switch is tilted to horizontal direction, when the center of gravity vertical line of this contact ball is crossed fulcrum on this second terminal, this contact ball is a rolls downward, disengaging contacts with this first terminal, this loop is cut off, and when this tilt switch recovered to be the level of state, this switch also kept normal condition.

This tilt switch adopts this contact ball of three terminal support, and from mechanics principle, supported at three point is the most stable; Secondly in this three terminal, on a pair of the first terminal and the position of second terminal in penetrating this base except that have height not, also have difference on the length in penetrating base, make between this a pair of the first terminal and second terminal that to produce section poor, the formation of this section difference, the decapacitation stable support should contact outside the ball, also can adjust required critical inclination angle degree because of the difference of this section difference, and the section difference more greatly, the inclination angle is littler, otherwise the section difference is littler, and the inclination angle is bigger; Again secondly, on the inboard horizontal major axis center line of this base end face, director strip is set, and can change its height by changing director strip, being provided with under the highly constant situation of this second terminal, make the height substantial connection of required angle of inclination of circuit closed and director strip, highly more height is set, required angle of inclination is littler, otherwise lower, required angle of inclination is bigger.

Description of drawings

Fig. 1 is the plane graph of known spin vibroswitch;

Fig. 2 is the longitudinal sectional drawing of known spin vibroswitch;

Fig. 3 is the transverse cross-sectional view of known spin vibroswitch;

Fig. 4 is the combination section of first embodiment of the invention;

Fig. 5 is the plane graph of first embodiment of the invention;

Fig. 6 is the front elevation of first embodiment of the invention;

Fig. 7 does not have the perspective view of lid S direction for Fig. 6;

Fig. 8 be among Fig. 6 b-b to profile;

Fig. 9 is that a-a is to profile among Fig. 5, and expression contacts the situation that ball does not contact with negative terminal;

Figure 10 represents to contact the situation that ball contacts with negative terminal for a-a among Fig. 5 to profile;

Figure 11 tilts to the situation of critical angle for first embodiment of the invention;

Figure 12 tilts to situation above 1 ° of critical angle for first embodiment of the invention;

Figure 13 is a second embodiment of the invention, when the bigger situation of section difference;

Figure 14 is a second embodiment of the invention, when the less situation of section difference;

Figure 15 is a third embodiment of the invention, the situation when the director strip height reduces;

Figure 16 is a third embodiment of the invention, the situation when the director strip height increases.

Embodiment

Concrete structure example with regard to the first embodiment of the present invention is described as follows with reference to the accompanying drawings:

As shown in Figure 4, tilt switch A of the present invention comprises: lid 1, and base 2, the contact ball 5 of a pair of plus end 3, one negative terminals 4 and a conduction matter constitutes.

Its combination order is: earlier with an a pair of plus end 3 and a negative terminal 4, passing the perforation 23 that is arranged on the base 2 penetrates in this base 2, the length that this a pair of plus end 3 and this negative terminal 4 penetrate is according to the Design of length of needs, contact ball 5 put this base 2 in lid 1 is fastened by the engaging protrusion 21 on the connecting hole on this lid 1 11 and this base 2, then finish the combination of tilt switch A of the present invention.Plane graph after this tilt switch A combination is finished as shown in Figure 5, its front elevation then as shown in Figure 6, Fig. 7 does not have the perspective view of lid S direction for Fig. 6, Fig. 8 be among Fig. 6 b-b to profile.

Function of the present invention: tilt switch A of the present invention horizontal major axis when normal operating condition is a level, at this moment, this contact ball 5 in this base 2, can not contact with this negative terminal 4 as shown in Figure 9, or contact with this negative terminal 4 as shown in figure 10, and do not contact with this a pair of plus end 3, the end that lid 1 is installed as this tilt switch A up promotes, just tilt switch A begins to tilt, at this moment, this contact ball 5 can roll towards this negative terminal 4, after at first contact with this negative terminal, and be fulcrum with this contact point, if this tilt switch A continues, when the center of gravity of this contact ball 5, when being positioned on the vertical line of this fulcrum, as shown in figure 11, the angle of inclination of this moment is called as the critical inclination angle degree, and when spending as if this tilt switch A continuation inclination and above critical inclination angle, 5 in this contact ball rolls to this plus end 3 and is in contact with it, then form the closed-loop path between negative terminal 4 and this plus end 3, as shown in figure 12.Otherwise, if this tilt switch A is tilted toward horizontal direction along the primary dip path, when the center of gravity of this contact ball 5, when crossing the vertical line of this fulcrum, this contacts ball 5, then breaks away from this plus end 3, and roll toward horizontal direction, this loop promptly is cut off, as Fig. 9 or shown in Figure 10.

This tilt switch A is characterised in that: this tilt switch A adopts three terminal support contact ball 5, and from mechanics principle, supported at three point one thing is the most stable; Secondly, in this three end, pair of terminal is that plus end 3, one terminals are negative terminal 4, this plus end 3 and this negative terminal 4, on the position in penetrating this base 2, except that have height not, the length in penetrating this base 2 also can have difference, makes between this plus end 3 and this negative terminal 4 that to produce section poor, this section difference allows this contact ball, is more stably supported by this three terminal.

The triangle of three terminal formation is preferably equilateral triangle or negative terminal is the isosceles triangle of drift angle, be arranged on upside-down triangle shape on the diapire of base, and in order to allow this contact ball contact, leg-of-mutton external diameter of a circle should contact the diameter of ball less than this.

Figure 12 and person shown in Figure 14 are the second embodiment of the present invention, and parts or assembly identical or suitable among all in this embodiment and first embodiment all represent with prosign, and its structure and effect are not given unnecessary details in addition.The essential structure of this embodiment is identical with first embodiment, institute's difference is: under the constant situation of the length that this negative terminal 4 penetrates this base 2, adjust the length that this plus end 3 penetrates this base 2, to increase or to reduce formed section difference between this plus end 3 and this negative terminal 4, X1 is bigger for this section difference, it is littler that this contact ball 5 breaks away from the required angle of inclination of this plus end 3, as shown in figure 13; Otherwise this section difference X2 is healed little required angle of inclination more greatly, as shown in figure 14.

In another case, then setting plus end 3, to stretch into the length of base 2 constant, and negative terminal 4 then can be adjusted the length that it penetrates base 2, the so also section difference size between positive and

negative terminal

3,4 front ends of changeable, and have and above-mentioned same effect.

Figure 15 and Figure 16 shows that the third embodiment of the present invention, the structure of this embodiment is identical with first and second embodiment basically, institute's difference is: the inwall of negative terminal 4 sides of base 2 is provided with an axially extended director strip or guide plate 22, be provided with under the highly constant situation at this negative terminal 4, adjustment is arranged at the height of the inboard director strip 22 in these base 2 bottom surfaces, can change the center of gravity of this contact ball 5, for the required angle of inclination of vertical line of crossing these negative terminal 4 fulcrums, when the height of this director strip 22 more hangs down, required angle of inclination is bigger, as shown in figure 15; Otherwise when the height of this director strip 22 is higher, required angle of inclination is littler, as shown in figure 16.

In the various embodiments described above, the convenience in the explanation is made as positive and negative terminal respectively with a pair of terminal 3 and a terminal 4, but as terminal 3 and terminal 4 are made as negative, positive terminal respectively, also is same feasible, self-evident.

Again, director strip or plate 22 are expressed as independently parts in the figure of each embodiment, as one-body molded with base 2, also are feasible, illustrate in the lump at this.

Tilt switch of the present invention is because of having previous constructions, decapacitation is configured to leg-of-mutton positive and negative terminal 3 by three, 4 are at 3 shores outside the in stable condition support contact ball 5, also can penetrate the adjustment of length in the base 2 just to adjust by terminal,

negative terminal

3,4 section is poor, and then the size of the tilting action angle of adjustment switch, also can contact the effect angle that ball 5 contacts with plus end to change by the thickness of increase and decrease director strip of negative terminal side inwall in base 2, therefore, the demand that not only can adapt to the user, and during fabrication, needn't change production line and assembly method, also needn't increase under the condition of cost, strain is at any time implemented.

Below only be illustrated with regard to several specific embodiments of the present invention, but the technical staff who is skillful in this field obviously as can be known, still can carry out various modifications, replacement and change not violating under above-mentioned principle of compositionality of the present invention and the spirit, and these all should be considered as containing within the scope of the present invention.

Claims

1. tilt switch, it comprises: hollow and have the base of diapire; Seal the lid of this base openings; Be arranged on this base bottom wall and three fixed terminals that an end extends along the base horizontal direction parallel to the lid side from diapire, and, rollably be contained in the contact ball of this base inside as movable contact assembly;

It is characterized in that: described three terminals comprise a pair of the first terminal and second terminal that polarity is opposite with the first terminal, are configured on the diapire of this base with upside-down triangle shape as leg-of-mutton three summits respectively; When this tilt switch was horizontally disposed with, this second terminal was positioned at the below, and highlands such as this a pair of the first terminal are arranged on this second terminal top, and at this moment, this contact ball does not contact with this a pair of the first terminal; When lid one side of this tilt switch is lifted when reaching predetermined angular, this contact ball rolls, and contacts with this a pair of the first terminal and this second terminal;

Wherein, the del that described three terminals form is for being the equilateral triangle or the isosceles triangle on summit with second terminal, and its external diameter of a circle is less than the diameter of this contact ball.

2. tilt switch as claimed in claim 1 is characterized in that, the length that this second terminal is given prominence to from base bottom wall greater than this a pair of the first terminal from the outstanding length of base bottom wall in base.

3. tilt switch as claimed in claim 1 is characterized in that, is equipped with in order to guide the director strip of this contact ball corresponding to the inwall of this second terminal, one side at the internal perisporium of this base.

4. as each described tilt switch in the claim 1～3, it is characterized in that at least one in these three terminals can freely be adjusted with respect to the outstanding length of base inside.

5. tilt switch as claimed in claim 3 is characterized in that, this director strip and this second terminal be arranged in parallel.

6. tilt switch as claimed in claim 5 is characterized in that, this director strip and base constitute one.

7. tilt switch as claimed in claim 5 is characterized in that this director strip is for can load and unload director strip.