CN1087430C - Seismosensitive element - Google Patents

Seismosensitive element Download PDF

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Publication number
CN1087430C
CN1087430C CN96110136A CN96110136A CN1087430C CN 1087430 C CN1087430 C CN 1087430C CN 96110136 A CN96110136 A CN 96110136A CN 96110136 A CN96110136 A CN 96110136A CN 1087430 C CN1087430 C CN 1087430C
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China
Prior art keywords
contact
mentioned
contact blade
hole
insulating base
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CN96110136A
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CN1158426A (en
Inventor
水谷靖和
浦野充弘
武田照之
村田宽
寺西敏
藤田义文
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Ubukata Industries Co Ltd
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Ubukata Industries Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

To obtain a seismoscopic element having a small size and high reliability. A conductive inertial sphere 6 is disposed on a lower insulator 10 in the vessel of the seismoscopic element 1, and an upper contact member 8 is normally electrically connected to a lower contact member 11 via the sphere 6. When the sphere 6 receives a vibration, the sphere 6 is rolled to disconnect the contact with the member 11. The member 8 has a radial blade-like part, and its central part is sandwiched fixedly between a support plate 7 and a conductive terminal pin 5. An upper insulator 9 is disposed at the periphery by inserting the pin 5, and sandwiched fixedly between the plate 7 and a disc 3A. The member 11 has two contact parts 11A to more ensure the electric connection to the sphere 6.

Description

Seismosensitive element
Technical field
The present invention relates to checking out a kind of omni-directional Seismosensitive element of seismism etc.It can be contained in the automatic safe control of kerosene warming stove, gas combustion apparatus and miscellaneous equipment with on the signal processing apparatus, in order to measure such as the such vibrations of earthquake, detection signal is provided for described signal processing apparatus.
Background technology
Recently required to use this Seismosensitive element in the society, made various heating arrangements or fuel supplying equipment be able to the appropriate measure of self-extinguishing etc. for its detection signal the automatic safe control device.
The Seismosensitive element of the unusual vibrations of detection that are to reach this purpose, known have several use-cases.These Seismosensitive elements generally need miniaturization.Seismosensitive element of the present invention belongs to the normally closed pass pattern of running jointly wherein, and in more detail, it is when running into unusual vibration by a Metal Ball, and its vibrating sensing action produces the pattern of contact cut-off signal.
In the past, the Seismosensitive element of these normally closed contact forms except the form of using Metal Ball, also has the form of using mercury.But this mercury mode; though have it to satisfy the requirement of miniaturization and have the advantage of the function that can maintain a long-term stability; but at present comfortable its note the viewpoint of environmental protection when discarded and set out, though people need a kind ofly not use mercury, but still has and use the Seismosensitive element of the same characteristic of mercury.For these requirements, the applicant also not " spy opens flat 8-50055 communique ", the number of applying for a patent of authorization of Japan respectively be willing to for the spy flat 7-23404 number, special be willing to flat 7-218221 number and specially be willing to disclose on flat 7-329595 number each a kind of Metal Ball of using and realize normally closed contact type Seismosensitive element with the same miniaturization of mercury mode.
However, when the actual use of the Seismosensitive element of as above introducing, except running into earthquake, it also may be subjected to special interference oscillatory, for example, because of contacts such as people or automobile cause, perhaps, the vibrations of a kind of similar earthquake that takes place because of strike in the site construction nearby etc. are also transmitted, therefore, though it does not detect real earthquake vibration, and it approximately millesimal rare number of times only occurs, also may have the error of sending the signal that circuit " breaks ".At this moment the misoperation phenomenon that circuit " breaks ", though be exactly to belong to originally if the voltage that gives on one row circuit is the character that then can't take place more than tens volts, but under little electric current of about 5 volts the voltage that uses on the general microelectronic circuit or about 1 milliampere, may there be the electrical isolation part that does not puncture, therefore, bring this phenomenon.
To this, experiment by repeatedly and use microscopical observation, we think remainingly on the electrodeposited coating of Metal Ball surface working has many being uneven giving, and, incomplete the platings part or the incomplete electric conductivity thing that exist low-voltage or little electric current to as above narration to lose electric conductivity at this place of being uneven.This concavo-convex for eliminating, tested the several different methods of barrelling etc., but the result shown being uneven of whole surface of Metal Ball removed very difficulty, and inevitable remaining a little is concavo-convex.
We infer at this, when the interference oscillatory of as above narration, Metal Ball there is not rolling and the rotation action takes place sometimes, thus, top sub or bottom contact element may be contacted with these incomplete plated portions of Metal Ball and grade, and bring the state that circuit " breaks " that takes place.Wherein, the top sub in this Seismosensitive element structure was exactly to keep and the contacting of Metal Ball by its a plurality of plumage shape portion all the time originally, and the possibility that next living circuit that volleys disconnects in a plurality of contacts is bordering on zero.To this, bottom contact element in this Seismosensitive element structure, just connecting small through hole in the center of insulating base protrudes upward a contact blade for it, one some contact and make itself and Metal Ball only form, and the possibility of result can be at the state that the circuit disconnection for example takes place under the one-shot rare frequency in 1,000 times.
According to the understanding of this point, rely on contact blade to be made as a plurality of means and to overcome the problem of having narrated, but also left over several problems here the bottom contact element.Owing to Seismosensitive element should use very undersized Metal Ball in the requirement of miniaturization, so the through-hole diameter of insulating base center is also very little, also there is the restriction aspect its size in the result in the structure of a plurality of contact blades, and, to become identical being not easy to the elastic force of pushing to of each contact blade of Metal Ball effect, and full product characteristic neatly also is difficult to or the like.
Summary of the invention
Purpose of the present invention promptly is to solve the aforesaid problem of prior art and further improved Seismosensitive element is provided.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of Seismosensitive element, cover body and the closed container of cylindric conduction mass shell body formation that the bottom is housed with one; In this closed container, hold a conduction matter inertia ball, run through the above-mentioned central part of covering body and electrical isolation and fix a conduction matter lead-in wire pin hermetically, having with this lead-in wire pin is that center and the conduction matter top sub of radial a plurality of flexible plumage shape portion of scattering are fixed on the side in the above-mentioned closed container that this lead-in wire sells, rely on support plate to fix this lead-in wire pin at this top sub and the above-mentioned insulation shrouding disc of covering an electrical isolation matter between the body, to have the insulating base that the dip plane of outwards raising gradually with one heart from the center and the center wear through hole is fixed near the above-mentioned housing inner bottom part, the conduction matter bottom contact element that installing is electrically connected with this housing formation between bottom surface in this housing and this insulcrete, and its a part of contact blade is inserted in the above-mentioned insulating base through hole, on above-mentioned dip plane during normal condition static above-mentioned inertia ball complying with self gravity and from the elastic force that above-mentioned top sub plumage shape portion accepts withstand that above-mentioned bottom contact element contact blade gives push to power and this contact blade of through hole contact of being positioned at this center, dip plane forms electric conducting state, this electric conducting state is rotated by this inertia ball and disconnects, but this ball still keeps the contact condition with above-mentioned top sub plumage shape portion, mutually combining of above-mentioned insulating base and above-mentioned bottom contact element constitutes the fixed sturcture that mutual displacement does not take place basically, it is characterized in that: above-mentioned bottom contact element has makes its each acrogenous contact blade not make a plurality of spring sections of lifting action under above-mentioned inertia ball is positioned at state on the above-mentioned insulating base through hole with can interfering with one another, this contact blade constitute fixed space contact with inertia ball in static and make this contact blade can be in above-mentioned insulating base through hole and the upper and lower displacement non-contiguously of this wall surface of the hole, described a plurality of spring section has the mutual hands-off layout that under inertia ball is positioned at state on the above-mentioned insulating base through hole each contact blade can be moved independently so that this contact blade each bring into play the power of pushing to independently to this ball.
Seismosensitive element of the present invention has solved the problem of the Seismosensitive element existence of prior art, and a kind of small-sized sensitive accurate Seismosensitive element is provided.
Description of drawings
Below describe with reference to the accompanying drawings, in the accompanying drawing:
Fig. 1 is the longitudinal sectional view of the first embodiment of the present invention;
The transverse sectional view of Fig. 2 for dissecing along the line P-P among Fig. 1;
Fig. 3 is the planimetric map that is illustrated in shape before the undressed of the bottom contact element that uses among first embodiment and the assembling;
Fig. 4 and even Fig. 7 are with graphic its a part of longitudinal sectional view of the manufacturing procedure of this bottom contact element, and wherein, Fig. 4 is depicted as the beginning bending machining it is positioned in state on the anchor clamps platform;
Fig. 5 illustrates first section operation of its bending machining, and then expression is earlier with its state of clamping with tonger;
Fig. 6 illustrates second section operation of its bending machining, then represents the state that its contact blade pointed portion is carried out bending according to the punching press action;
Fig. 7 illustrates the state that just has been bent into of this bottom contact element of present embodiment;
Fig. 8 is the longitudinal sectional view of the second embodiment of the present invention;
Fig. 9 is the transverse sectional view along the line Q-Q sectility among Fig. 8;
Figure 10 is the planimetric map that shape before the undressed and assembling of the bottom contact element that uses is shown in a second embodiment;
Figure 11 is the longitudinal sectional view of the third embodiment of the present invention;
The transverse sectional view of Figure 12 for dissecing along the line R-R among Figure 11;
Figure 13 is the planimetric map that is illustrated in shape before the undressed of a bottom contact element using among the 3rd embodiment and the assembling;
Figure 14 for the similar same planimetric map that another bottom contact element is shown of Figure 13;
Figure 15 is the longitudinal sectional view of the fourth embodiment of the present invention;
The transverse sectional view of Figure 16 for dissecing along the line S-S among Figure 15;
Figure 17 is the planimetric map that is illustrated in shape before the undressed of the bottom contact element that uses among the 4th embodiment and the assembling.
Embodiment
According to Fig. 1 and even Fig. 4 first embodiment is described below.Seismosensitive element 1 makes and will cover the hermetically-sealed construction that openend that the method for body 3 by annular projection welding etc. be fixed in the metal mass shell body 2 of the drum that has the bottom forms closed container.In encapsulation, preferably extract earlier the inert gas that air in the container is enclosed helium etc. again out, make the surface of each contact component described later and inertia ball avoid taking place pollution or corrosion etc. according to this transposing gas, and have characteristic steady in a long-term.Cover body 3 and be at a metal matter plectane 3A being provided with a through hole, will run through a conduction matter lead-in wire pin 5 of this through hole, be fixed in this plectane 3A hermetically by insulating packing 4 (as glass etc.) near the center.
In the insulation cover plate described later and the space between the insulating base in closed container, hold rotation inertia ball 6 freely, it can be made with the metal of stainless steel of iron or its alloy etc.The material of its use, if iron, copper etc., easily oxidation is then arranged in air and produce hinder that film that electricity leads is may, preferably use noble metal processing plating such as gold, silver, perhaps select other surfacecti proteon to handle,, make it be suitable for application target to prevent corrosion.But subsidiary saying is not limited to above-mentioned several materials or job operation so long as have the solid ball that is suitable for purpose electric conductivity.
Be positioned at lead-in wire pin 5 on the end of closed container fixing with metal support plate 7, clamping upper joint 8 between itself and insulation shrouding disc described later.Top sub 8 itself possesses the radial a plurality of rubber-like plumage shape portion that separates.This plumage shape portion is the center every 60 ° direction all to extension with lead-in wire pin 5 in various embodiments.If the quality 0.7 of inertia ball 6 and even 1.5 whens gram, the material that is suitable for using as top sub 8, the then phosphor bronze sheet of thickness 0.01 and even 0.02 millimeter preferably.Each cephalic par of this plumage shape portion, remove in supposition under the situation of inertia ball 6, all form the inboard total arrangement of deflection, in the present embodiment, it forms earlier from plectane 3A and vertically descends, thereby can contact inertia ball 6 all the time, in addition, width about 0.3 millimeter and the enough elasticity of tool are made by this top sub plumage shape portion, thus, also can make its at least two to follow all the time and the contacting of maintenance and inertia ball 6 when inertia ball 6 rolls.The number of this plumage shape portion and the recovery elastic force of each root thereof must be considered the factor of influence that its acceleration of beginning to roll for inertia ball 6 brings and resistance etc. and determines.
Insulation shrouding disc 9 is made for slightly form as a cup-shaped with the electrically insulating material of synthetic resin etc., and, wear a through hole in the center of its cup like bottom, and make lead-in wire pin 5 run through this hole.Show that as Fig. 1 under the normal conditions in it is installed in closed container, its cup-shaped edge is downward, its cup-like interior forms a plurality of steps, and its cup-shaped edge the inside forms a plurality of chase 9A.Thus, when being subjected to inertia balls such as strong impact or repeated stock 6 at Seismosensitive element 1 and turning to position etc. shown in the dotted line 6A among Fig. 1, chase 9A admits the top sub plumage shape portion that is pushed by this ball, and makes it avoid being clamped face generation plastic yield between this ball and cup-shaped edge.
The insulation shrouding disc 9 the cup like bottom setting-in with metal its shape support plate 7 consistent with this bottom.When its setting-in, the middle body that this support plate 7 is about to top sub 8 is clamped between this cup-shaped bottom surface of Yu Qiyu, thereafter, the center of this plate method by jam weld etc. is fixed on the lead-in wire pin 5.Protrusion phenomenon for the weld of avoiding support plate 7 central authorities that this welding processing may produce, center at top sub, wear a hole in advance, bring the influence that makes top sub 8 distortion so that alleviate the heating of welding, and top sub 8 is clamped between the lower surface and support plate 7 of lead-in wire pin 5 securely.The as above top sub 8 and the insulation shrouding disc 9 that have been assembled into plectane 3A of narration clamped between itself and plectane 3A, so mutual displacement can not take place later on owing to all be supported plate 7.
To embed and be fixed in housing 2 inner bottom parts with the insulating base 10 that the electrically insulating material of plastics etc. is made.The rib that forms around it plays a part auxiliary fixing.Insulating base 10 has a plurality of collet 10B, installing bottom contact element 11 in the space that collet 10B forms.The dip plane that formation is raised towards periphery with one heart gradually by the center on insulating base 11, and, formation dish edge portion on its periphery, maximum displacement when withstanding and limiting the rotation of inertia ball shown in dotted line 6B, thereby, keep this ball not contact the obstructed state of circuit of housing 2 inner peripheral surfaces.Wear a through hole 10A in the center of dip plane, the contact blade 11A of bottom contact element 11 inserts in this hole from bottom to top.The shape of dip plane is not limited to a straight line of drafting gradient is rotated and a kind of taper shape of formation, for example, the circular conical surface of the gradient that changes therebetween, perhaps, convex surface that forms with the curve rotation of top convex or concavity bending or concave curved surface etc. also can.Moreover if this curved surface does not change its vergence direction as long as keep raising gradually towards periphery, the curved surface of selling the curvature that changes midway is also passable.
Bottom contact element 11 has enough flexible a kind of spring assembly and makes by for example being made into the phosphor bronze sheet of thickness 0.03 and even 0.1 millimeter, its shape is, show as Fig. 3, within it side have each slightly spiral fashion and have symmetric configuration a pair of spring section 11B and approximately ringwise.That form on the head end that is positioned at summary center, housing 2 bottom surfaces of spring section 11B is exactly above-mentioned contact blade 11A.It is then upwards curved upright at the head end place of spring section 11B, so that its head end penetrates in the insulating base through hole 10A.All be contacted with under the state of the inertia ball 6 in static at each this head end, show as Fig. 1, leave mutually fixed interval, and, each head end lifting decide in the stroke range, do not interfere with one another, and can both with this hole inwall non-contactly and each make lifting action independently.Have the transverse width link stopper 11C wideer near the root of this contact blade 11A, make the effect that is limited to top offset of contact blade 11A that its performance causes spring section 11B than the aperture of through hole 10A.Contact blade 11A preferably electroplates or applies other suitable surfacecti proteons with the processing of noble metals such as gold, silver and handles, and to avoid oxide film etc.
Bottom contact element 11 is equipped with a plurality of through holes, in the present embodiment, shows as Fig. 3, and it has three through hole 11D, and collet 10B that insulating base 10 has and Combining bolt 10C are through this through hole 11D.Connect the head portion of the Combining bolt 10C behind this hole,, make its expanding distortion, so that insulating base 10 mutually combines fixing with bottom contact element 11 by the heating of electricity consumption soft soldering instrument or supersonic welding.On the rim of bottom contact element 11, be formed with contact chip 11E.When insulating base 10 embedded in the housing 2 with bottom contact element 11, contact chip 11E was clamped the centre at insulating base 10 outer peripheral faces and housing 2, and it contacts housing securely and reaches stable conducting thus.
Be loaded with rotation inertia ball 6 freely on the insulating base 10 with bottom contact element installing, it rests on when normal condition static on the through hole 10A of dip plane central authorities and pushes down contact blade 11B, and keeps in touch with it.During the vibration of the acceleration more than the regulation does not arrive, the contact condition as above that its maintenance self is not rotated.If Seismosensitive element 1 is when being subjected to stipulating above vibration because of earthquake etc., and inertia ball 6 rolls on the dip plane with regard to leaving through hole 10A, and it just disconnects and the contacting of contact blade 10B thus.On the formation of Seismosensitive element shown in Figure 11, the acceleration alpha that inertia ball 6 will begin to roll can be with following formulate: α = r · G R 2 + r 2 But in this formula, G is the acceleration of gravity, and R is the radius of inertia ball 6, and r is the radius of through hole 10A.
At this, if inertia ball 6 acceleration that begins to rotate is assumed to 150 gals, and be 3.0 millimeters with its radius R, the radius of through hole 10A has just become 0.45 millimeter of very little total so.But actually, owing to inertia ball 6 is down pushed down by top sub 8 and is lifted by bottom contact element 11, so adjust in the slightly different numerical value of the numerical value that gives than this numerical expression.Yet, thus, the size of the contact blade 11A of bottom contact element, for its in so little hole still lifting be appreciated that its amplitude is about 0.2 and even 0.5 millimeter freely.
Insulating base 10 after will interfixing earlier and bottom contact element 11 are embedded in the bottom in the housing 2, thereafter, will be through the assembling procedure narrated and with cover body 3 and combine after insulation shrouding disc 9 from above when inserting, the plumage shape portion that makes top sub 8 opens and presss from both sides and embrace an inertia ball 6, show as Fig. 1, plectane 3A and housing 2 are become under the concentric state mutually, changing gas and with the welding of annular projection welding etc. and reach airtightly, finish Seismosensitive element 1.
Describe the Bending Processing method of the contact blade 11A of the bottom contact element 11 that uses in the present embodiment below with reference to Fig. 4 and even Fig. 7.Earlier unprocessed flat bottom contact element 11 is positioned on the anchor clamps platform G1 of unshowned stamping machine.In first work step that shows of Fig. 5 of a left side, will nearby rely at the tip that its head end forms the spring section 11B of contact blade 11A and be equipped with on the anchor clamps platform 61 up and down that a pair of tonger G2, G3 clamps.Each end face that this tonger is clamped spring section 11B has the degree of tilt of being drafted, wherein, the end face of last tonger G2 forms convex form, and pincers G3 forms concave shape down, thus, as shown in this figure, the root of each contact blade 11A is by its torsional buckling, and each tip of contact blade 11A upwards lifts with the angle of being drafted.
Then in second work step that Fig. 6 shows, a pair of mould G4 descends along tonger G2, G3, make contact blade 11A plastic yield and form fixed bending shape.After mould G4 and last tonger G2 upwards return, the shape of the bottom contact element of unloading down from anchor clamps platform G1 11, show as Fig. 7, by the first end parts of the spring section 11B of tonger G2, G3 torsional buckling, be returned to original horizontality from elastic deformation for the moment, promptly finish with contact blade 11B from its plane the manufacturing procedure with the angle bending drafted.At this, rely on concavo-convex degree of tilt variation with the end face of tonger G2, G3, become the degree of tilt of being asked with the bending angle to bottom contact element 11 planes that can make contact blade 11B., though the method for the downward bending of contact blade 11B is only represented in the explanation of present embodiment, it is reversed up and down and upwards bending is also passable, this point also is not say and bright in addition.
Describe the course of action of Seismosensitive element 1 now.It is when normal mounting state static, and inertia ball 6 rests on the through hole 10A of dip plane of insulating base 10, relies on the elastic force contact of the weight of inertia ball 6 itself and top sub 8 and can push down the contact blade 11A of bottom contact element 11.At this, from plumage shape portion, inertia ball 6, contact blade 11A, the contact chip 11E of bottom contact element and housing 2 forms " leading to " to row's circuit of plectane 3A the state of lead-in wire pin 5 process top sub 8 successively.
Seismosensitive element 1 is subjected to stipulating the vibration of above acceleration, for example, the cycle of running into is when being horizontal vibration more than 0.2 to 1 second 150 gals, inertia ball 6 as moving contact just leaves through hole 10A rolling on the dip plane, be that inertia ball 6 leaves contact blade 11A, therefore, above-mentioned row's circuit is disconnected to the above time of regulation.Thus, the signal processing apparatus that Seismosensitive element 1 connects is received the signal of these detection vibrations, if kerosene warming stove or gas combustion apparatus, promptly by the action of control device, it can carry out the in good time disposal of self-extinguishing.Thereafter, Seismosensitive element 1 is got back to former static state, and inertia ball 6 just revert on the through hole 10A of dip plane central authorities, contacts the circuit that contact blade 11A forms " leading to " again again.At this, because top sub 8 plumage shape portions keep the contact condition with inertia ball 6 all the time, so inertia ball 6 makes row's circuit recover energising with regard to contacting contact blade 11A immediately when returning previous status.
In the embodiment of as above narration, bottom contact element 11 has two contact blade 11A that match, its each head end is lifting action independently of one another, face and, at it when inertia ball 6 on resting on through hole 10A contacts, these two head ends be spaced from each other fixed interval, be this contact blade 11A of present embodiment, in the through hole 10A of 0.45 millimeter of the radius of having narrated, between two head end with about 0.1 to 0.3 millimeter interval of about 1/9 and even 1/3 of being equivalent to this aperture and all contact this sphere.Therefore, as narrated because of inertia ball 6 run into special interference vibration its when on through hole 10A, doing the rotation action, even any sheet under a millesimal minimum probability for example among two contact blade 11A touches the incomplete plating part on this ball surface, another contact blade also can keep the conduction state with this ball under the low-voltage of having narrated.We reach as above and confirm by experiment.
Below with reference to Fig. 8 and even Figure 10 second embodiment is described.But, in each embodiment of next coming in order narrations, with same label represent with the embodiment that has narrated in same area, and omitted its detailed description.Bottom contact element 31 in the Seismosensitive element 21 of present embodiment constitutes, as shown in figure 10, forming within it, sidepiece has the rough annular of two spring section 31B.The layout of these two spring sections 31 then is that the equal tool of the slat of about same magnitude is spiral-shaped and be made into state arranged side by side mutually.In the present embodiment, the interval of drafting that this and Column Layout have 0.2 and even 0.4 millimeter to avoid mutual action and disturbs.On the movable end of spring section 31B, form contact blade 31A, and make its contact inertia ball 6 keep conducting, and have the transverse width block 31C wideer near the root of this contact blade 31A than the aperture of through hole 10A, make contact blade 31A that its performance causes spring section 31B to top offset restriction in addition.The through hole 31D of bottom contact element 31 and the formation of contact chip 31E respectively correspond to through hole 11D and the contact chip 11E among first embodiment, and its function and effect are too.
Two contact blade 31A are upwards curved slightly squarely upright from the plane at its root, and the layout that it looks down from the top as shown in Figure 9, becomes the arrangement as " Ha " word of Japanese kana text, and upwards inserts the through hole 10A of insulating base 10.Two cephalic pars of this contact blade 31A, when it all contacts the inertia ball 6 of stationary state, between two contact points, have fixed interval, it has 0.1 and to 0.3 millimeter in the present embodiment.These two contact blade 31A and its nearby part form symmetric shape, and it can be along each lifting travel knee-action independently, not interfere mutually in through hole 10A.
Compare with first embodiment of a pair of rough coil spring part with symmetry, place inequality in the present embodiment is that then spiral helicine two spring sections are made into to having the slightly also Column Layout of same magnitude generally, thus, this example can realize the spring section that size is longer and make it more bring into play effect as spring.
The Seismosensitive element 41 of the 3rd embodiment is described below with reference to Figure 11 and Figure 14.Two contact blade structures in the present embodiment promptly are to use to have two bottom contact elements 51,52 of same shape generally and reach the functions that pair are electrically connected with inertia ball except following difference a little part.Show as Figure 13 and Figure 14, contact element 51,52 each formation in bottom have the rough annular shape of rough coil spring part 51B, 52B, and, on the movable end of its each spring section 51B, 52B, form it is upwards curvedly stood on about 90 ° contact blade 51A, 52A, and insert it in the through hole 10A and keep in touch inertia ball 6. Contact blade 51A, 52A nearby have block 51C, 52C, and make the effect that is limited to top offset of contact blade 51A, 52A that its performance causes spring section 51B, 52B.
Bottom contact element 51,52 respectively has a plurality of through hole 51D, 52D, and with it when overlapping, each through hole is consistent with each other.As Figure 13 and shown in Figure 14, each bottom contact element 51,52 of present embodiment respectively wears three through hole 51D, 52D, and collet 10B that insulating base 10 has and Combining bolt 10C run through through hole 51D, the 52D that pushes away overlapping state together.Connect the cephalic par of the Combining bolt 10C of this Kong Qunhou,, make its expanding distortion, fix so that two bottom contact elements of insulating base 10 and this 51,52 combine simultaneously by the heating of electricity consumption soft soldering instrument or supersonic welding.At this, two bottom contact elements 51,52 are fixed in insulating base 10 to be close to overlap condition, but its spring section 51B, 52B and contact blade 51A, 52A constitutes and to be pre-set in suitable size and to make and can make knee-action separately mutually uninterruptedly, thus, when inertia ball 6 rolls, make each contact blade lift part and in through hole 10A, make knee-action independently along lifting travel separately, in the present embodiment, two spring section 51B, 52B and its contact blade 51A, the size of 52A, the spring section 52B of bottom contact element 52 that promptly is set in downside is bigger slightly than the spring section 51B and the contact blade 51A of upside with contact blade 52A.Thus, when two contact blade head ends all contact inertia ball 6 in static, it has 0.1 and even 0.3 millimeter at interval, and, rest on the through hole 10A at this ball 6 and make time rotational, near two contact blade roots spring section 51B, 52B up and down from the interval have 0.1 and even 0.3 millimeter so that contact blade 51A, 52A in through hole 10A reach knee-action mutually uninterruptedly.On each rim of bottom contact element 51,52, make contact chip 51E, 52E.When insulating base 10 embedded in the housing 2 with bottom contact element 51,52, each was clamped centre at insulating base 10 outer peripheral faces and housing 2 overlappingly two couples of contact element 51E, 52E, and it contacts housing 2 securely and reaches stable conduction connection thus.
As above be described on the present embodiment, the this point of using about identical shaped two bottom contact elements 51,52 that respectively have a contact blade and reaching dual terminal structure is the structure in first and second embodiment inequality, but thus, can realize more freely designing the length and the amplitude equidimension of spring section, so that the better spring performance of its performance.
The Seismosensitive element 61 of the 4th embodiment is described below with reference to Figure 15 and even Figure 17.In the present embodiment, same with the 3rd embodiment, promptly use two bottom contact elements 71 and reach dual terminal structure, but its shape is same inertia ball 6.As shown in figure 17, bottom contact element 71 constitutes with the substrate portion with plurality of through holes 71D with the spring section 71B of the such shape of similar " C " word.On the movable end of spring section 71B, form the contact blade 71A that contacts with inertia ball 6 and be electrically connected and be connected into.It makes its head end insert the through hole 70A at insulating base 70 centers from its flat square ground bending, and, have block 71C at its root, make the effect that is limited to top offset of contact blade 71A that its performance causes spring section 71B.
Bottom contact element 71 respectively has a plurality of through hole 71D, and as shown in figure 17, in the present embodiment, it wears two through hole 71D.After the following collet 70B different with other embodiment layout that form of insulating base 70 and Combining bolt 70C be flush-mounted in this through hole 71D, heating by electricity consumption soft soldering instrument or supersonic welding etc., with the distortion of its head portion expanding reach so that insulating base 70 is caught each bottom contact element 71 mutually combine fixing.At this, though the bottom contact element 71 of present embodiment respectively is provided with two through hole 71D, this through hole is not necessarily limited to two, if the condition of tolerable size etc., it can become more than two, otherwise or, become one also passable.But if adopt the formation of the bottom contact element that has only a through hole, as avoiding the means that contact element 71 generations in bottom turn to insulating base 70, for example, the Combining bolt 70C of insulating base 70 forms quadrangular prism etc., and make this shape of through holes also with its be combined into consistent, to reach fixing the mutually combining that between insulating base 70 and bottom contact element 71, is not subjected to displacement by catching.
On the substrate portion rim of bottom contact element 71, form contact chip 71E, when insulating base 70 embeds in the housing 2 with this bottom contact element 71, this contact chip 71E is clamped the centre at insulating base 70 outer peripheral faces and housing 2, and it contacts housing 2 securely and reaches stable conducting thus.Other component part and the function of the insulating base 70 of present embodiment except that the layout of collet 70B and Combining bolt 70C is different, all are same as the insulating base 10 of each embodiment that had both stated.
In the present embodiment, two bottom contact elements 71 of same shape place on the symmetric position with mutual 180 ° of rotations of the benchmark of the rough central authorities of housing 2, and, all be insulated base plate 70 and catch and fix.When the head end of two contact blade 71A all is contacted with inertia ball 6 in static, between two head end, have 0.1 and even 0.3 millimeter fixed interval.Thereby, when inertia ball 6 rotates, in through hole 70A two contact blade 71A can along each lifting travel each independently and mutual non-interference make knee-action.
The as above action of each Seismosensitive element of Xu Shu from second to the 4th embodiment all is same as the Seismosensitive element 1 of first embodiment.When its normal mounting state static, keep the state of " leading to " to the series circuit of housing 2 from lead-in wire pin 5.When it is subjected to stipulating the vibrations of above acceleration, be electrically connected the signal that produces " breaking " with regard to disconnection between inertia ball 6 and the housing 2, provide as the signal that detects vibrations for unshowned various control object apparatus it, at this, by rely on should " break " signal amplitude and its whether earthquake of judgement such as cycle, if judge to belong to earthquake, then make various devices carry out the in good time disposal of self-extinguishing etc.
Also have, in aforesaid each embodiment, for solve narrated because the problem that interference oscillatory brings, pointed out with can be mutual non-and interfered the ground action and contact two contact blades of inertia ball independently and reach the technological means that maintenance is electrically connected with this ball.Yet, if in this tolerable size condition, for it uses the means of three or more contact blades also passable.
Rely on method of the present invention, at the special interference oscillatory that is subjected to non-earthquake because of Seismosensitive element, though inertia ball does not roll, the rotation action but being positioned on the insulating base through hole, it takes place, and make a contact blade touch the incomplete plated portions timesharing on this ball surface, another contact blade still can be brought into play the function that keeps conduction state independently, and makes it avoid taking place " breaking " signal.In addition, the insulating base through hole aperture that this ball was positioned at when the present invention had overcome inertia ball because of small-sized and stationary state also is the very little restriction that brings, and thus, can provide the small-sized and well behaved Seismosensitive element with height reliability.

Claims (7)

1. a Seismosensitive element is covered body and the closed container of cylindric conduction mass shell body formation that the bottom is housed with one;
In this closed container, hold a conduction matter inertia ball,
Run through the above-mentioned central part of covering body and electrical isolation and fix a conduction matter lead-in wire pin hermetically,
Having with this lead-in wire pin is that center and the conduction matter top sub of radial a plurality of flexible plumage shape portion of scattering are fixed on the side in the above-mentioned closed container that this lead-in wire sells,
Rely on support plate to fix this lead-in wire pin at this top sub and the above-mentioned insulation shrouding disc of covering an electrical isolation matter between the body,
To have the insulating base that the dip plane of outwards raising gradually with one heart from the center and the center wear through hole and be fixed near the above-mentioned housing inner bottom part,
The conduction matter bottom contact element that installing is electrically connected with this housing formation between bottom surface in this housing and this insulcrete, and its a part of contact blade is inserted in the above-mentioned insulating base through hole,
On above-mentioned dip plane during normal condition static above-mentioned inertia ball complying with self gravity and from the elastic force that above-mentioned top sub plumage shape portion accepts withstand that above-mentioned bottom contact element contact blade gives push to power and this contact blade of through hole contact of being positioned at this center, dip plane forms electric conducting state
This electric conducting state is rotated by this inertia ball and disconnects, but this ball still keeps the contact condition with above-mentioned top sub plumage shape portion,
Mutually combining of above-mentioned insulating base and above-mentioned bottom contact element constitutes the fixed sturcture that mutual displacement does not take place,
It is characterized in that:
Above-mentioned bottom contact element has makes its each acrogenous contact blade not make a plurality of spring sections of lifting action under above-mentioned inertia ball is positioned at state on the above-mentioned insulating base through hole with can interfering with one another,
This contact blade constitute fixed space contact with inertia ball in static and make this contact blade can be in above-mentioned insulating base through hole and the upper and lower displacement non-contiguously of this wall surface of the hole,
Described a plurality of spring section has the mutual hands-off layout that under inertia ball is positioned at state on the above-mentioned insulating base through hole each contact blade can be moved independently so that this contact blade each bring into play the power of pushing to independently to this ball.
2. Seismosensitive element as claimed in claim 1 is characterized in that:
With above-mentioned bottom contact element contact blade is 1/9th to 1/3rd of above-mentioned insulating base through hole diameter at interval.
3. Seismosensitive element as claimed in claim 1 or 2 is characterized in that:
Above-mentioned bottom contact element has spiral-shaped two spring sections and contact blade with symmetric configuration,
This contact blade from the plane of this spring section with fixed angle upwards curved upright, and, this contact blade with fixed interval and contact inertia ball in static.
4. Seismosensitive element as claimed in claim 1 or 2 is characterized in that:
Above-mentioned bottom contact element has two spiral-shaped bands with same the amplitude spring section of layout and the contact blade that forms on its each head end with symmetrical shape side by side,
This contact blade from the plane of this spring section with fixed angle upwards curved upright, and, with fixed interval and contact inertia ball in static.
5. Seismosensitive element as claimed in claim 1 or 2 is characterized in that:
The quantity of described bottom contact element is two.
6. Seismosensitive element as claimed in claim 5 is characterized in that:
Above-mentioned bottom contact element has the contact blade that stands up in spiral-shaped spring section and the plane from this spring section that forms with meeting at right angles on the one end,
A plurality of bottoms contact element that will all form same shape except that the part this spring section and this contact blade is overlapping, and make spring section near this contact blade under above-mentioned inertia ball is positioned at state on the above-mentioned insulating base through hole, have fixed between the upper and lower every, in order to avoid the mutual interference of this contact blade action.
7. Seismosensitive element as claimed in claim 5 is characterized in that:
Above-mentioned bottom contact element has the spring section that forms and is caught by above-mentioned insulating base and the substrate portion that interfixes on the one end,
The through hole that described a plurality of bottoms contact element is installed in this insulating base is on the symmetric configuration at center,
From the plane of each spring section with a plurality of contact blades of standing up of fixed angle constitute its each sheet with mutual fixed interval and contact above-mentioned inertia ball static, and, under this ball is positioned at state on this insulating base through hole, itself and this all actions uninterruptedly mutually of spring section.
CN96110136A 1996-02-29 1996-06-28 Seismosensitive element Expired - Fee Related CN1087430C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP71404/96 1996-02-29
JP8071404A JP2879421B2 (en) 1996-02-29 1996-02-29 Seismic element

Publications (2)

Publication Number Publication Date
CN1158426A CN1158426A (en) 1997-09-03
CN1087430C true CN1087430C (en) 2002-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN96110136A Expired - Fee Related CN1087430C (en) 1996-02-29 1996-06-28 Seismosensitive element

Country Status (3)

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JP (1) JP2879421B2 (en)
KR (1) KR100197064B1 (en)
CN (1) CN1087430C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865087B (en) * 2010-05-31 2012-06-27 无锡同春新能源科技有限公司 Power supply unit for applying wind generator system to earthquake prediction device
CN102608654B (en) * 2012-03-16 2015-07-15 威海双丰物探设备股份有限公司 Lower contact piece for detectors
CN105527647A (en) * 2014-09-28 2016-04-27 徐家成 Earthquake monitoring method and earthquake monitoring device
CN106094012A (en) * 2016-07-22 2016-11-09 成都秦川科技发展有限公司 Seismic sensor for intelligent gas meter
CN107390263B (en) * 2017-06-27 2023-08-08 中国地震局工程力学研究所 Underground sensor orthogonal maintaining self-leveling device
KR102082338B1 (en) * 2018-05-09 2020-02-27 주식회사 신일비에프이 Unit having vibration isolation function and apparatus having vibration isolation function for pipe
CN110686769A (en) * 2019-10-31 2020-01-14 珠海格力电器股份有限公司 Vibration detection device, washing machine and vibration detection and control method of washing machine

Also Published As

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JPH09236484A (en) 1997-09-09
KR100197064B1 (en) 1999-06-15
JP2879421B2 (en) 1999-04-05
CN1158426A (en) 1997-09-03
KR970062663A (en) 1997-09-12

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