CN101071164A - Metallic ball detection sensor and its manufacturing method - Google Patents
Metallic ball detection sensor and its manufacturing method Download PDFInfo
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- CN101071164A CN101071164A CN 200710102550 CN200710102550A CN101071164A CN 101071164 A CN101071164 A CN 101071164A CN 200710102550 CN200710102550 CN 200710102550 CN 200710102550 A CN200710102550 A CN 200710102550A CN 101071164 A CN101071164 A CN 101071164A
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Abstract
To provide a highly reliable detection structure making it easy to take electric discharge measures in addition to the thinning of a sensor structure, not by building an antistatic shield member into the interior, but by providing a conductive member doubling as a case on the outer circumference, as antistatic measures for protecting an internal coil winding from external static electricity, as to a metallic ball detection sensor for detecting a metallic ball by causing it to pass therethrough. This metallic ball detection sensor includes a coil spool made by winding a coil winding on the outer circumference of a through hole for causing a conductive ball to pass therethrough, a wiring board mounted with a sensor circuit made by connecting both ends of the coil winding wound on the coil spool, and the base for mounting thereon the coil spool and the wiring board in a manner in which they are separated from each other on one side and on the other side. This detection sensor is made by covering the conductive member, as an external shell member, at least, on either the ball infall side or the ball run out side on the periphery of the through hole.
Description
Technical field
The present invention relates to built-in metallic ball detection sensor in pinball game of in amusement arcade for example, being provided with etc., and then, in further detail, relate to the metallic ball detection sensor of the sensor construction slimming that whether the detection Metal Ball can be passed through and the manufacture method of metallic ball detection sensor.
Background technology
Below, to using the situation in pinball game to describe metallic ball detection sensor.
Generally, in pinball game, during the Metal Ball of the usefulness that obtains in the mouth of winning a prize that is provided with on gameboard playing (below be called ball), perhaps ball detects passing through of this ball by passing-through type metal ball detector by the expenditure path time.
Such metallic ball detection sensor is assembled in the various unit such as mouthful unit of for example winning a prize of management ball by situation, detect the situation of passing through of ball in each unit of affirmation and, still all need a plurality of metallic ball detection sensors be set at each position of paying from winning a prize to every pinball game to counting by quantity.Especially as being used to one of behave that improves play, under the situation that has additional the mouth of winning a prize, set up quantity with it proportional and increase the quantity that sets of metallic ball detection sensor, in the gameboard rear side, owing to have the new metallic ball detection sensor of setting up, make the configuration space deficiency of liquid crystal indicator etc.
For example, known in recent years have a kind of type, when the expenditure right of the number of necessarily winning a prize that provided is provided under the game state of getting Grand Prix, on top that the switching that opens and closes corresponding to winning a prize number is won a prize mouthful or the position of bottom, the other switching that with the on-off action interlock of short duration switching is set and when winning a prize, further increases the right of the winning a prize mouth of winning a prize, by these switchings up and down mouth of winning a prize is set, and further improve the enjoyment of recreation such as pinball game.
Yet, open and close under the situation of winning a prize mouthful in upper-lower position configuration, owing to need dispose metallic ball detection sensor respectively at upper-lower position equally, so in the rear side of gameboard corresponding to upper-lower position, up and down to set the space narrow and small, the configuration of large-scale liquid crystal indicator etc. is restricted.Therefore, the metallic ball detection sensor that carries out slimming then can be realized the slimming of each unit, and then the configuration space of gameboard rear side can be enlarged if constitute the height reduction that will be assembled into the metallic ball detection sensor in each unit.Therefore, wish the height of metallic ball detection sensor self is reduced.
Above-mentioned this metallic ball detection sensor adopts following through proximity transducer, and it is according to making the changes of magnetic field of ball during by through hole with electric conductivity detect the situation of passing through of ball.This through proximity transducer protection is configured near the circuit part's destruction by electrostatic field and taked certain static countermeasure not the through hole.
For example, in patent documentation 1 disclosed electronic switch, in order to make static not cause harmful effect to circuit part, in through hole, be used in collect on the ball with the current collection patterned member of static directly face with through hole, and then be formed with from the current collection patterned member and the static of collecting led discharge position and the discharge pattern parts that discharge.
But, in such static countermeasure, static can invade processes sensor output signal circuit and destroy treatment circuit.For example, produce of the harmful effect of static such as liquid crystal image disorder to other peripheral equipments.In addition,, lower house in the printed circuit board (PCB) utilization that will have circuit part constitutes electronic switch, so with the size shortening of above-below direction and be limited aspect the slimming owing to covering.
In addition, as other modes of static countermeasure, known have a through proximity transducer (for example with reference at the patent documentation 2 of first to file).This through proximity transducer detects the disorder in magnetic field by the coil winding that is wound on the through hole outer peripheral face, but this situation will dispose the housing that covers wiring substrate up and down similarly, and then, as the static countermeasure, need cover a pair of shading ring up and down of coil winding periphery up and down, therefore being difficult to shorten the size of above-below direction, is being limited aspect through proximity transducer slimming.
In addition; in above-mentioned two patent documentations; by utilizing linear winding to discharge from other positions that the static guiding of charged absorptions such as ball is separated with it; the protection coil winding is destruction by electrostatic field not; but, wish to be improved owing to can cause harmful effect to peripheral circuit or various parts after the static of this discharge.
Patent documentation 1:(Japan) spy opens flat 6-295648 communique
Patent documentation 2:(Japan) No. 3579975 communique of patent
Summary of the invention
So; the present invention is as linear winding being protected in external static electrification blocking and being prevented metal on every side or the countermeasure of the mutual interference that external magnetic field causes; do not assemble the shield member that anti-static is used in inside; but as case member; in periphery the conductive component of double as housing is set, and is not connected, thus with stable potential; the ball of static electrification is directly passed through, so can save discharge mechanism.Therefore, the object of the present invention is to provide the manufacture method of a kind of metallic ball detection sensor and metallic ball detection sensor, not only sensor construction slimming, and saved discharging structure, have the high defencive function of reliability.
Metallic ball detection sensor of the present invention has: coil web, and its periphery coiling coil winding at the through hole that Metal Ball with electric conductivity is passed through forms; Wiring substrate, its two ends that coil winding of will reel on the described coil web is installed connect and the sensor circuit of formation; Matrix, it separately carries described coil web and wiring substrate at a side and opposite side, wherein, rolls into either side that face side or ball roll out the face side at the ball of described through hole periphery at least and covers conductive component as case member.
As an aspect of of the present present invention, described conductive component covers the roughly periphery that each ball the inner peripheral surface that each ball except that described coil web and matrix rolls into face side and described through hole, described coil web and matrix rolls out face side and outer peripheral face.
In addition, as an aspect of of the present present invention, roll into the either side that face side or ball roll out the face side at the ball of the through hole periphery of described coil web and cover conductive component, with respect to the annular gap that is formed on described coil winding outer peripheral face side and carry below the opposite side of matrix of wiring substrate, it is molded fixing to use the insulative resin material to carry out.
In addition, as an aspect of of the present present invention, utilize cap assembly to separate the space below the opposite side of described matrix and cover described wiring substrate.
In addition, as an aspect of of the present present invention, described conductive component is formed with at least at the position with the contact of insulative resin material and being connected of molded fixedly reinforcement usefulness promotes the hole.
The manufacture method of metallic ball detection sensor of the present invention, the coil web that will form in the periphery coiling coil winding of the through hole that Metal Ball is passed through is carried the side at matrix, and the opposite side at matrix carries wiring substrate, the two ends that this wiring substrate is equipped with the coil winding of will reel on the described coil web connect and the sensor circuit of formation, roll out under the temporarily fixing state that covers of either side of face side the ball of the coil winding of described through hole periphery being rolled into face side or ball by conductive component, utilize annular gap that the insulative resin material forms described coil winding outer peripheral face side and the wiring substrate tabular ground that is equipped on described matrix opposite side molded fixing and seal.
According to the present invention; when the metallic ball detection sensor that is subjected to electrostatic influence is easily improved; by being provided as the conductive component of static countermeasure at outside surface and being provided with the insulative resin material, can side by side improve the slimming of this metallic ball detection sensor, the protection of coil winding and the omission of discharging structure.
Description of drawings
Fig. 1 is the stereoscopic figure of the metallic ball detection sensor dorsal part of expression first embodiment;
Fig. 2 is the stereoscopic figure of the metallic ball detection sensor user mode of expression first embodiment;
Fig. 3 is the exploded perspective view from the metallic ball detection sensor dorsal part of observed first embodiment of oblique upper;
Fig. 4 be from oblique beneath to the exploded perspective view of metallic ball detection sensor dorsal part of first embodiment;
Fig. 5 is the planimetric map of the metallic ball detection sensor dorsal part of expression first embodiment;
Fig. 6 is the outboard profile of connection matrix side of the metallic ball detection sensor of expression first embodiment;
Fig. 7 be first embodiment along the A-A line of Fig. 5 to pseudosection;
Fig. 8 be first embodiment along the B-B line of Fig. 5 to pseudosection;
Fig. 9 be first embodiment along the C-C line of Fig. 5 to pseudosection;
Figure 10 be first embodiment along the D-D line of Fig. 5 to pseudosection;
Figure 11 be first embodiment along the E-E line of Fig. 5 to pseudosection;
Figure 12 be first embodiment along the F-F line of Fig. 5 to pseudosection;
Figure 13 be first embodiment along the G-G line of Fig. 5 to pseudosection;
Figure 14 is the stereoscopic figure of the metallic ball detection sensor dorsal part of expression second embodiment;
Figure 15 is the exploded perspective view from the metallic ball detection sensor dorsal part of observed second embodiment of oblique upper;
Figure 16 be from oblique beneath to the exploded perspective view of metallic ball detection sensor dorsal part of second embodiment;
Figure 17 is the stereoscopic figure of the metallic ball detection sensor dorsal part of expression the 3rd embodiment;
Figure 18 is the exploded perspective view from the metallic ball detection sensor dorsal part of observed the 3rd embodiment of oblique upper;
Figure 19 be from oblique beneath to the exploded perspective view of metallic ball detection sensor dorsal part of the 3rd embodiment;
Figure 20 is the stereoscopic figure of the metallic ball detection sensor dorsal part of expression the 4th embodiment;
Figure 21 is the exploded perspective view from the metallic ball detection sensor dorsal part of observed the 4th embodiment of oblique upper;
Figure 22 be from oblique beneath to the exploded perspective view of metallic ball detection sensor dorsal part of the 4th embodiment;
Figure 23 is the amplification view under the installation porous type radome state of metallic ball detection sensor dorsal part of expression the 4th embodiment;
Figure 24 is that the connection of the metallic ball detection sensor dorsal part of expression the 4th embodiment promotes the critical piece that is filled with in the hole under the insulative resin materials behavior to amplify longitudinal diagram.
Description of reference numerals
11,141,171,201: metallic ball detection sensor
13,142,203: radome
19: the insulative resin material
172: go up face shield
202: connect the promotion hole
Embodiment
Based on the following drawings one embodiment of the invention are described.
First embodiment
Accompanying drawing represents to be assembled in the metallic ball detection sensor of the situation that the detection ball passes through in the pinball game, Fig. 1 is the stereographic map of metallic ball detection sensor 11 dorsal parts, Fig. 2 is the stereographic map that expression socket 12 is connected the user mode on the metallic ball detection sensor 11, Fig. 3 is the exploded perspective view from observed metallic ball detection sensor 11 dorsal parts of oblique upper, Fig. 4 be from oblique beneath to the exploded perspective view of metallic ball detection sensor 11 dorsal parts.
When the following examples were narrated under user mode, radome or part carried the face side and become following and boarded parts be can't see, thus with following side as above describe.Metallic ball detection sensor 11 preferably uses for following with the lift-launch faces of radome or electronic component, when the passing through of Metal Ball, makes radome not yielding.
This metallic ball detection sensor 11 comprises: radome 13 above it is arranged on, is used to prevent static; Detect constituting body 16, its will in be located at a side coil web 14 with in be located at opposite side wiring substrate 15 be connected and constitute; Connect matrix 17; Carry the matrix 18 of these parts; Insulative resin material 19, it is used for the molded parts that this matrix 18 carries above that are fixed on.
Constitute the coil web 14 of a side of described detection constituting body 16, be provided with the through hole 22 that ball P is passed through in the inboard of the reel portion 21 of coiling coil winding 20.And then, between the flange 23,24 at the two ends up and down of being located at reel portion 21, be wound with coil winding 20.
In addition, the reel portion 21 that offers through hole 22 by vertical direction has extended flat substrate connecting portion 25 to horizontal direction.This cardinal extremity connecting portion 25 is provided with コ shape portion 26 in the end, insert the end of wiring substrate 15 described later in the コ shape space of this コ shape portion 26 and link into an integrated entity.In addition, be equipped with a pair of relaying teat 27 on substrate connecting portion 25, it is used for around extension when the two ends distribution with coil winding 20 sides is connected to wiring substrate 15 sides.
Described wiring substrate 15 is installed electronic component 15a such as IC, resistance, capacitor in the above and is constituted oscillatory circuit, detecting circuit or output circuit etc.And then an end of this wiring substrate 15 is inserted in the コ shape portion 26 of described substrate connecting portion 25 and installs, and is equipped with respectively the tab 28 that the both ends with coil winding 20 connect in the both sides of this insertion portion.And the circuitous pattern of oscillatory circuit or signal output usefulness is connected with these tabs 28.
Offer the otch peristome 29 that is cut into spill in the other end of wiring substrate 15.In this otch peristome 29, be equipped with and connect matrix 17.Connect matrix 17 and have the open box-shaped in a side, three sides of periphery are kept by otch peristome 29, and this connection matrix 17 is installed on the wiring substrate 15 with the state of vertical perforation.And, the distribution of being located at a side when this connection matrix 17 is installed in wiring substrate 15 connects with open distolateral, side by side to being equipped with plug 17a, at this, as represent shown in the outboard profile of the planimetric map of Fig. 5 of metallic ball detection sensor 11 and Fig. 6, insert socket 12 and be electrically connected.
In addition, be provided with locating slot 31, the location teat 32 (with reference to Fig. 4) that forms in these back side central authorities that are entrenched in substrate connecting portion 25 and positioning at the pars intermedia of matrix 18.Similarly, the downside of the コ shape portion 26 of substrate connecting portion 25 is entrenched in the matrix fitting portion 33 and positions equally, and this matrix fitting portion 33 is adjacent with locating slot 31, in the Width elongation, is formed for the recess of chimeric コ shape portion 26.
And then, have the recess 35 that connects the chimeric usefulness of matrix in the end of the opposite side (wiring substrate 15 sides) of matrix 18, embed the bottom that connects matrix 17 and fix at this.In addition, a corresponding side in the circumferential lateral surface of matrix 18, with connecting matrix 17 offers open opening portion with the level 36, and it can be used to connect distribution from outside dismounting socket 12.
In addition, be formed with a plurality of little projections 37 or concavity stage portion 37a,, have the internuncial effect that improves this matrix 18 and insulative resin material 19 in that insulative resin material described later 19 is molded fixedly the time at two lateral surfaces of matrix 18.
The sheet metal that described radome 13 has electric conductivity by be used to suppress to interfere mutually or the copper product of the influence of metal on every side etc. constitutes the open box shape in below having an and side.And, upper central portion at this radome 13 offers the cover through hole 38 bigger slightly than through hole 22 diameters, this cover through hole 38 is corresponding with described through hole 22, and under the state of the periphery of the reel portion 21 of covering except that through hole 22 inner peripheral surfaces, is installed on the matrix 18.Outer Wednesday of the side 13a, 13b, the 13c that are closed except that an open side of this radome 13, corresponding and chimeric lightly with three side 18a, 18b, the 18c of the identical correspondence position of matrix 18, and local riveted joint is installed with temporary transient fixing state.
In addition, extend in a side of the opening of radome 13 and to be provided with end edge is extended setting slightly from this radome 13 of open sides resin brace 39, molded fixedly the time by insulative resin material described later 19, have this radome 13 of the open surface that increases radome 13 sides and insulative resin material 19 contact area, improve internuncial effect of both sides.
To detect constituting body 16, connect matrix 17, after radome 13 is assembled on the matrix 18, shown in Figure 8 as the B-B cross section of the Fig. 7 in the A-A cross section of Fig. 1, Fig. 2, presentation graphs 5 and presentation graphs 5, at last by insulative resin material 19, the annular gap 40 that the top of the wiring substrate 15 that the opposite side of matrix 18 is carried and the outer circumferential side of described coil winding 20 form utilizes insulative resin material 19 molded fixing and seal.
Using described insulativity material 19 to carry out under the fixing situation of pattern and since can use these insulative resin material 19 seal lines substrates 15 above, so wiring substrate 15 is not influenced by external static electrification.In addition, this ball P runs into the vibration that the inner peripheral surface of through hole 22 produces in the time of can suppressing ball P by through hole 22 by insulative resin material 19, therefore the effect that is inhibited and resonates between the electronic component 15a.In addition, insulative resin material 19 can be arranged to be also used as the top cover of protecting wiring substrate 15.Therefore, can not need face shield, construct the metallic ball detection sensor 11 that thickness has reduced corresponding to the height of cover.
In addition, as represent that plane earth represents D-D cross section shown in Figure 10 of the Fig. 9 in C-C cross section of Fig. 5 of metallic ball detection sensor 11 and presentation graphs 5, the insulative resin material 19 that is filled is penetrated into by the outer peripheral face of the radome 13 that will go up face closure, coil web 14, with in periphery and the annular gap 40 that surrounds between the matrix 18 of face closure down.Therefore, insulative resin material 19 wraps into coil winding 20 and it is protected, and, radome 13 one of temporary transient stationary state can be fixed on the matrix 18.In addition; even with coil winding 20 graph thinning; also can protect by insulative resin material 19; this ball P does not run into the influence of the vibration that inner peripheral surface produced of through hole 22 when not being subjected to ball P by through hole 22; therefore, can not reduce coiling quantity and make it graph thinning, owing to can take in lessly; so can reduce the thickness of short transverse, help the slimming of metallic ball detection sensor.
As shown in Figure 2; when ball P rolls into the through hole 22 of coil web 14 from the top; described radome 13 is used to prevent static and covers the following side of these through hole 22 peripheries and the lateral surface of through hole 22 peripheries; and be not connected with stable potential; therefore; even the ball P by through hole 22 is charged, also can covers and protect Inside coil winding 20 by this radome 13 or insulative resin material 19.Therefore, the coil winding 20 of coil web 14 is not subjected to the harmful effect from external static electrification.Therefore, coil winding 20 is kept stable detection sensitivity and is carried out the detection action of ball exactly.Particularly, by with radome 13 as the case member setting and and coil winding 20 between set insulative resin material 19, can protect the detection sensitivity of coil winding 20.By establishing the resist technology of this detection sensitivity, can omit the shield member that is used to prevent the electrostatic breakdown coil winding 20 that above through hole 22, produces, can set the amount that size reduces the height part of shield member.Therefore, even also can be with metallic ball detection sensor 11 slimmings in coil web 14 sides.
And then, make that 13d, 14d side are roughly identical level above each that the ball P of radome 13 and coil web 14 rolls out.Therefore, distance of 13d, 14a and coil winding 20 is certain above this, and 13d, 14a are the detection reference position above each, and the detection starting position of ball is certain.Therefore, always obtain 20 pairs of coil winding exactly and begin detection opportunity, obtain the detection characteristic accurately of each ball relatively by the ball P of through hole 22.
In this case, even top 14a 13d above radome 13 of coil web 14 is axially being given prominence to setting slightly, the top 14a of this coil web 14 exposes the outside becomes the detection reference position that ball rolls into side, therefore, can be arranged to make the top 13d of the top 14a of coil web 14 and radome 13 identical, perhaps make the top 14a of coil web 14 outstanding slightly, anyly can both obtain identical effect.
In addition, the following 14b side of coil web 14 also with the following 18d of the matrix 18 that keeps this coil web 14 on identical substantially plane.Therefore, 14b, 18d are certain to the distance of coil winding 20 below each, following 14b, 18d side can be set at the detection reference position.
And then, owing to can determine the detection position, so can detect exactly to the detection end position from the detection starting position of ball P during by through hole 22 by top and bottom 14a, the 14b of coil web 14.At this moment, the surface of metallic ball detection sensor 11, the installation direction at the back side are unrestricted, and operability is good, can high precision, the reliability highland accurately detects ball.
At this moment, from top 13d, 14a to coil web 20 distance setting for radome 13 above not being subjected to, as the distance of the influence of metal.And then 20 distance is set at the certain distance of the influence that is not subjected to metal too from following 14b, 18d to coil web.For example, even be provided with continuously up and down and detect under the situation that rolls down direction of ball at two metallic ball detection sensors 11, the metal of top radome 13 that the coil winding 20 of the metallic ball detection sensor 11 on top is not subjected to being positioned at the metallic ball detection sensor 11 of bottom produces the influence of static and is arranged to certain distance.
Described through hole 22 is offered in order vertically to connect single coil web 14, is made of parts to get final product, and does not have miscellaneous part, therefore, does not produce the step discrepancy in elevation at the inner peripheral surface of this through hole 22, can guarantee level and smooth the rolling out of ball P.
In addition,,, invade the resin that reaches between winding space and tail off, have the advantage of the performance degradation of coil winding of not making 20 at the filling part of coil winding 20 if use the high insulative resin material 19 of viscosity.In addition, if use the high insulative resin material 19 of tack, the constant intensity of part strengthens, and also can improve rigidity.Therefore, it is suitable using high viscosity, high tack and the good insulative resin material 19 of electrical insulating property.
And then, when sealing at wiring substrate 15 sides filling insulative resin material 19, as represent that plane earth represents F-F cross section shown in Figure 12 of the Figure 11 in E-E cross section of Fig. 5 of metallic ball detection sensor 11 and presentation graphs 5, insulative resin material 19 is filled to the part that connects matrix 17 and each part is molded securely fixing.In addition, shown in Figure 13 as the G-G cross section of presentation graphs 5 wraps into outer Wednesday of the side that connects matrix 17 and carries out molded fixingly, should connect matrix 17 one and be fixed on wiring substrate 15 and the matrix 18.
Particularly, because by insulative resin material 19 that wiring substrate 15 or connection matrix 17 is molded securely fixing, wiring substrate 15 or connection matrix 17 are subjected to external force and can easily come off.For example, when socket 12 being connected matrix 17 dismounting relatively by the outside, even having, effect makes peeling forces such as connecting peeling force that matrix 17 peels off and lift upward from wiring substrate 15 or pulling, because it is molded fixing by insulative resin material 19 to connect the periphery of matrix 17, so be difficult for coming off, can not produce bad problems such as broken string from wiring substrate 15 and matrix 18.
But, connect matrix 17 self for this, also have the function that suppresses height, realize slimming.At first, install with the state of vertical perforation wiring substrate 15, can will connect the state that matrix 17 is mounted to a little sinking, can reduce the lift-launch height of this connection matrix 17 by connecting matrix 17.In addition and since with connect matrix 17 below also be formed with the recess 35 that connects the chimeric usefulness of matrix above the corresponding matrix 18, so further sink, the lift-launch of connection matrix 17 is highly further reduced and install at this chimeric connection matrix 17.
Thus, can make the top height of the insulative resin material 19 that is sealed on the matrix 18 be identical substantially height with the two reduction of top height that connects matrix 17.Therefore, can suppress the height of wiring substrate 15 sides of metallic ball detection sensor 11, in addition, because profile can be the tabular of rectangular parallelepiped, so obtain making the metallic ball detection sensor 11 of above-below direction slimming.
And then, even when the plug 17a that connects matrix 17 engages with the contact 12a of socket 12, also apply the countermeasure that is used to realize slimming.When this distribution connecting portion slimming, the cross sectional shape of the contact 12a of the socket 12 that the corresponding plug 17a plug that connects matrix 17 connects freely about recess, the length in length and breadth that forms this contact 12a than in vertically short, the horizontal long shape contact 12a that grows crosswise.Therefore, can suppress to connect the height of matrix 17 based on the short transverse that shortens contact 12a.Its result can make this connection matrix 17 slimmings, and then makes 11 slimmings of Metal Ball sensor.
Then, the manufacture method to metallic ball detection sensor 11 describes.
At first, coil web 14 and wiring substrate 15 are linked into an integrated entity and the detection constituting body 16 that constitutes carry the matrix 18 that forms concavity above.At this moment, side at matrix 18 is equipped with coiling coil winding 20 and the coil web 14 of formation, opposite side at matrix 18 is equipped with the wiring substrate 15 that sensor circuit has been installed, and the two ends that this sensor circuit will be wound on the coil winding 20 of described coil web 14 connect and constitute.
In addition, when carrying, the bottom of the reel portion 21 by making the tubular of being arranged to coil web 14 is fitted in the matrix through hole 30, and coil web 14 is carried on matrix 18 with through hole 22 center-aligned exactly.In addition, the locator protrusions portion 32 of substrate connecting portion 25 is entrenched in the locating slot 31 of matrix 18, and the bottom that makes the コ shape portion 26 of this substrate connecting portion 25 is fitted in the matrix fitting portion 33 of matrix 18, detection constituting body 16 can be located exactly and carry on the matrix 18.
To detect after constituting body 16 carries on the described matrix 18, covering above coil web 14 sides by radome 13 and the lateral surface of the matrix 18 of through hole 22 peripheries and under the temporary transient fixing state, by insulative resin material 19 annular gap 40 of the outer peripheral face side formation of described coil winding 20 and molded the fixing in top of wiring substrate 15 are sealed to flat rectangular parallelepiped, thus, metallic ball detection sensor 11 can be arranged to one as single part.
As the fill method of insulative resin material 19 at this moment, internally the zero setting part does not apply unnecessary pressure, does not make coil winding 20 distortion and the low pressure fill method described later of employing use thermoplastic resin.
When filling described insulative resin material 19, if this insulative resin material 19 invades between the lead of coil winding 20, then between the lead of coil winding 20, have the high material of conductance, increase capacity between the lead of coil winding 20.Therefore, the sensitivity as the coil winding 20 of the checkout equipment of metallic ball detection sensor 11 reduces.Perhaps, suppose that the intrusion degree of insulative resin material 19 has deviation owing to the difference of the environmental baseline of manufacturing process, make it detect performance self deviation (detection) apart from aberrations in property, therefore, preferred insulative resin material 19 of filling does not invade the condition between the lead of coil winding 20.As the condition that is used to realize above purpose, need make when filling or the resin viscosity height during low pressure molding, and relate to the whole zone that is filled.For example, preferred dissolution viscosity is the above thermoplastic resin of 2000Pa/S.
In addition, about forming pressure, preferred not penetration is between the lead of coil winding 20 and do not apply forming pressure, particularly, is suitable for the low pressure molding below the 2MPa or only fills and the low pressure fill method made.
The result, though can not avoid situation that insulative resin material 19 is contacted with coil winding 20, but the reduction of detection sensitivity, the manufacture deviation of detection performance etc. can be suppressed to Min., can realize rigidity enhancingization, the slimming of coil winding 20 parts by insulative resin material 19.And then, under the situation of filling the high resin of viscosity, insulative resin material 19 is not invaded in gap at electronic component 15a that is installed on wiring substrate 15 and wiring substrate 15, the expansion by the insulative resin material 19 of filling, shrinks and can eliminate the worry that electronic component 15a peels off yet.
According to this manufacture method, after temporary transient assembling, owing to only fill insulative resin material 19; therefore can make metallic ball detection sensor 11 simply; and, because the existence of insulative resin material 19, thereby can protect wiring substrate 15 or coil winding 20 stably to be shaped airtightly.
In addition, in molding process, each parts that links to each other with insulative resin material 19 are fixed integratedly, therefore can improve the connectivity between the parts.And then by insulative resin material 19 being filled in the mould of shaping usefulness, what can make metallic ball detection sensor 11 toply aligns with flat same level highly easily and is shaped desirable shape.Therefore, can create the top height of the detection starting position of metallic ball detection sensor 11 accurately, become accurately, make the detection stability of characteristics of coil winding 20, the deviation in the time of can suppressing to detect from top distance up and down to coil winding 20.Therefore, can realize the raising of the sensor performance of metallic ball detection sensor 11.
Then, the user mode to the metallic ball detection sensor 11 of above-mentioned manufacturing describes.
When socket 12 is inserted in the connection matrix 17 of metallic ball detection sensor 11 and during to these metallic ball detection sensor 11 supply powers, coil winding 20 is produced magnetic fluxs by excitation towards its inboard through hole 22.Thus, metallic ball detection sensor 11 becomes the detection holding state of the situation of passing through that detects ball P.Detect under the holding state at this, now, as shown in Figure 2, when ball P passes through the through hole 22 of this metallic ball detection sensor 11 from the top towards the below, in the moment on ball P arrives through hole 22, it is disorderly that the magnetic flux of coil winding 20 begins to become, and begins to detect at the sensor electrical trackside based on this.And at ball P by through hole 22 constantly, the disorder of magnetic flux turns back to original neat detection holding state, finishes the detection to a ball.
At this moment, the ball detection signal is from the transmitter circuit of being made up of not shown oscillatory circuit, detecting circuit and output circuit etc. of coil winding 20 sides guiding wiring substrate 15 sides, and thus, to not shown control part output, a ball P has been passed through in affirmation via socket 12.In addition, when the ball P that passes through is charged, utilize radome 13 or insulative resin material 19 to cover static towards coil winding 20 sides, therefore, coil winding 20 and wiring substrate 15 can not be subjected to the harmful effect that static brings.Carry out such detection action during whenever by ball P repeatedly, whether can draw ball by reaching the quantity of passing through the ball here.
Like this, metallic ball detection sensor 11 is provided in the outside upper face side of coil winding 20 with radome 13 as the case member of double as upper shell and shielding magnetic, thus, can protect inner coil winding 20 not influenced by external static electrification.In addition, can omit discharging structure with respect to radome 13.
And then, owing to use insulative resin material 19 molded fixing metal ball detecting sensors 11, therefore, metallic ball detection sensor 11 can with and the connecting portion of radome 13 sides and wiring substrate 15 side adjacency between insulated separation.Therefore, metallic ball detection sensor 11 is used as the anti-static part of the sensor circuit of relative wiring substrate 15 sides with insulative resin material 19, and the static that is eliminated is invaded the high anti-static method of reliability of the problem of (electrical Interference) this sensor circuit.
In addition, even when metallic ball detection sensor 11 slimmings, in coil winding 20 sides, because only the upper face side that is rolled into by the outside ball of radome 13 coverings can obtain function of shielding, therefore, only can be with coil winding 20 side slimmings by the radome 13 that the double as upper shell is set.In addition, in wiring substrate 15 sides, integral body can use insulative resin material 19 to replace upper shell above it, therefore, can omit upper shell and realizes the slimming of wiring substrate 15 sides.
Second embodiment
This metallic ball detection sensor 141 is compared with the metallic ball detection sensor 11 of first embodiment, and difference only is: use the radome 142 that covers matrix 18 integral body; Only use insulative resin material 19 in coil winding 20 sides, and do not use insulative resin material 19 in wiring substrate 15 sides, other structure is identical, marks identical Reference numeral and omits its explanation for identical structure.
Figure 14 is the stereoscopic figure of metallic ball detection sensor 141 dorsal parts, and Figure 15 is the exploded perspective view from observed metallic ball detection sensor 141 dorsal parts of oblique upper, Figure 16 be from oblique beneath to the exploded perspective view of metallic ball detection sensor 141 dorsal parts.
When the following examples were narrated under user mode, radome or part carry the face side to be become following and boarded parts be can't see, therefore with following side as above describe.Metallic ball detection sensor 141 preferably with the lift-launch face of radome or electronic component as following and use, Metal Ball by the time, make radome not yielding.
Described radome 142 is made of the sheet metal that copper material etc. has electric conductivity, the open box shape in below having an and side.And, upper central portion at this radome 142 offers than the little big cover through hole 38 of through hole 22 diameters, this cover through hole 38 is corresponding with described through hole 22, covers periphery integral body above the matrix except that the inner peripheral surface of the following and described through hole 22 of matrix 18 by a radome 142.At this moment radome 142 has two snap openings of offering in pairs 143 with the syndeton of matrix 18 in the two sides of radome 142, these snap openings 143 are engaged with the little engaging protrusion 144 of the two sides that are darted at matrix 18 and link into an integrated entity.
Under the situation that is provided with this radome 142, can protect the lift-launch part integral body of lift-launch on matrix 18 not influenced by external static electrification.In addition, can omit the structure of insulative resin material 19 except forming, owing to this radome 142 can be also used as the last face shield of metallic ball detection sensor 141, so can reduce number of spare parts.
The 3rd embodiment
This metallic ball detection sensor 171 is compared with the metallic ball detection sensor 11 of first embodiment, and difference only is: face shield 172 in the use; Only use insulative resin material 19 in coil winding 20 sides, and do not use insulative resin material 19 in wiring substrate 15 sides, other structure is identical, marks identical Reference numeral and omits its explanation for identical structure.
Figure 17 is the stereoscopic figure of metallic ball detection sensor 171 dorsal parts, and Figure 18 is the exploded perspective view from observed metallic ball detection sensor 171 dorsal parts of oblique upper, Figure 19 be from oblique beneath to the exploded perspective view of metallic ball detection sensor 171 dorsal parts.
When the following examples were narrated under user mode, radome or part carry the face side to be become following and boarded parts be can't see, therefore with following side as above describe.Metallic ball detection sensor 171 preferably with the lift-launch face of radome or electronic component as following and use, Metal Ball by the time, make radome not yielding.
The described face shield 172 of going up has anti-concave shape, separates the space and covers the top of the wiring substrate 15 that the opposite side of matrix 18 disposes above.At this moment last face shield 172 and the syndeton of matrix 18 are covered 172 two sides in the above and are provided with two snap openings of offering in pairs 173, these snap openings 173 are engaged with the little engaging protrusion 174 of the two sides that are darted at matrix 18 and link into an integrated entity.
Be arranged on this under situation on face shield 172; except having by the top function of protecting electronic component 15a of using that face shield on this 172 covers wiring substrates 15; even deviation is arranged when detecting; adjust inner electronic component 15a owing to can open face shield 172, can adjust the advantage that detects deviation so have by staff.
The 4th embodiment
This metallic ball detection sensor 201 is compared with the metallic ball detection sensor 11 of first embodiment, difference only is: be provided with the porous type radome 203 that the connection that is equipped with a plurality of molded fixedly reinforcement usefulness promotes hole 202, other structure is identical, marks identical Reference numeral and omits its explanation for identical structure.
Figure 20 is the stereoscopic figure of metallic ball detection sensor 201 dorsal parts, Figure 21 is the exploded perspective view from observed metallic ball detection sensor 201 dorsal parts of oblique upper, Figure 22 be from oblique beneath to the exploded perspective view of metallic ball detection sensor 201 dorsal parts, the amplification view of the critical piece when Figure 23 is the installation porous type radome of metallic ball detection sensor 201 dorsal parts, Figure 24 are to connect the enlarged elevation figure that promotes to be filled with in the hole 202 critical piece under insulative resin material 19 states.
Described porous type radome 203 is provided with a plurality of little connections by integral body on radome and promotes hole 202, spreading all over each at molded insulative resin material 19 of filling fixedly the time connects and promotes hole 202, its result, porous type radome 203 is affixed on coil web 14 and the matrix 18 securely via insulative resin material 19.In addition, promote the hole 202, the notch of formation promotion connection usefulness etc. also can be set except connecting.
When the metallic ball detection sensor 11,141,171,201 with described first～the 4th embodiment is installed on the pinball game, any one of this metallic ball detection sensor 11,141,171,201 all passed through retainer (not shown) and integrated maintenance, and the Metal Ball that also this retainer can be screwed the mouth of winning a prize that is installed to the recreation card that is equivalent to pinball game is passed through the position.
The retainer that is installed in described recreation card also can add the sensor protection function of having implemented anti-static method for this retainer except sensor keeps function.For example, under the situation of first embodiment, as long as form (electroplating processes etc.) such as conductive metal layers that contact with the radome 13 of described metallic ball detection sensor 11, contact with the part of this conductive metal layer and be connected the lead that the electrostatic prevention that is connected with the earth uses and get final product at the outside surface of described retainer self.Thus; by the radome 13 that is provided with as the anti-static method of Metal Ball by the position; not only can protect inner sensor circuit portion not to be subjected to electrostatic influence; also can disperse static, perhaps can apply the anti-static method that static is put into the earth from the retainer that covers metallic ball detection sensor 11 integral body.
In addition, the described metallic ball detection sensor 11 main mouths of winning a prize that use at pinball game, therefore to transform the sensor circuit portion of this metallic ball detection sensor 11, might to make the transformation of the sensor circuit portion of the wrong signal output of winning a prize in order win a prize morely.Preferably can easily find to have carried out this transformation in appearance.
Therefore, prevent to transform mechanism as internal sensor circuit part, at the outside surface with the molded insulative resin material 19 that is fixed into tabular and covers of the sensor circuit portion of described metallic ball detection sensor 11, carve characters (marking) that apply the product information of the literal of expression build date, address etc. or mark etc. is fit to.Thus, even try to transform sensor circuit portion, because 19 distortion of insulative resin material, the disorder of perhaps carving characters can just can confirm whether to have wrongful transformation by a glance.Particularly, peel off insulative resin material 19, then, need improve the ability (security) that prevents improper transformation based on the molded reproduction of insulative resin material 19 with based on these two reproductions of reproduction of the marking of same font.And then, if insulative resin material that these insulative resin material 19 usefulness are transparent forms, can from outward appearance just confirm at a glance the configuration of regular electronic component or shape suitably whether.
Corresponding to the structure of this invention and an above-mentioned embodiment, radome 13,142 and the porous type radome 203 of the corresponding embodiment of the conductive component of this invention, face shield 172 on the cap assembly correspondence, but the present invention is not limited in the above embodiments, can be based on the technological thought of content of the present invention and use.
Claims (6)
1. metallic ball detection sensor has: coil web, and its periphery coiling coil winding at the through hole that Metal Ball with electric conductivity is passed through forms; Wiring substrate, its two ends that coil winding of will reel on the described coil web is installed connect and the sensor circuit of formation; Matrix, it separately carries described coil web and wiring substrate at a side and opposite side, it is characterized in that, rolls into either side that face side or ball roll out the face side at the ball of described through hole periphery at least and covers conductive component as case member.
2. metallic ball detection sensor as claimed in claim 1, it is characterized in that described conductive component covers the roughly periphery that each ball the inner peripheral surface that each ball except that described coil web and matrix rolls into face side and described through hole, described coil web and matrix rolls out face side and outer peripheral face.
3. metallic ball detection sensor as claimed in claim 1 or 2, it is characterized in that, roll into the either side that face side or ball roll out the face side at the ball of the through hole periphery of described coil web and cover conductive component, with respect to the annular gap that is formed on described coil winding outer peripheral face side and carry below the opposite side of matrix of wiring substrate, it is molded fixing to use the insulative resin material to carry out.
4. metallic ball detection sensor as claimed in claim 3 is characterized in that, utilizes cap assembly to separate the space below the opposite side of described matrix and covers described wiring substrate.
5. metallic ball detection sensor as claimed in claim 3 is characterized in that, described conductive component is formed with at least at the position with the contact of insulative resin material and being connected of molded fixedly reinforcement usefulness promotes the hole.
6. the manufacture method of a metallic ball detection sensor, it is characterized in that, to be wound with the side of the coil web lift-launch of coil winding in the periphery of the through hole that Metal Ball is passed through at matrix, and the opposite side at matrix carries wiring substrate, the two ends that this wiring substrate is equipped with the coil winding of will reel on the described coil web connect and the sensor circuit of formation, roll out under the temporarily fixing state that covers of either side of face side the ball of the coil winding of described through hole periphery being rolled into face side or ball by conductive component, utilize annular gap that the insulative resin material forms described coil winding outer peripheral face side and the wiring substrate tabular ground that is equipped on described matrix opposite side molded fixing and seal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP133917/06 | 2006-05-12 | ||
| JP2006133917A JP4742978B2 (en) | 2005-10-06 | 2006-05-12 | Metal ball detection sensor and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101071164A true CN101071164A (en) | 2007-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710102550 Pending CN101071164A (en) | 2006-05-12 | 2007-05-14 | Metallic ball detection sensor and its manufacturing method |
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| Country | Link |
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| CN (1) | CN101071164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813758B (en) * | 2009-02-19 | 2013-12-04 | 西门子公司 | Magnetic resonance coil |
| CN104239948A (en) * | 2014-07-16 | 2014-12-24 | 浙江工业大学 | Ball online counting method and device in circular machining ball grinding machine |
-
2007
- 2007-05-14 CN CN 200710102550 patent/CN101071164A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813758B (en) * | 2009-02-19 | 2013-12-04 | 西门子公司 | Magnetic resonance coil |
| CN104239948A (en) * | 2014-07-16 | 2014-12-24 | 浙江工业大学 | Ball online counting method and device in circular machining ball grinding machine |
| CN104239948B (en) * | 2014-07-16 | 2017-06-30 | 浙江工业大学 | Spheroid on-line counting method and device in a kind of cyclic process ball crusher |
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