CN102045050B - Contactless switch - Google Patents

Abstract

A contactless switch can realize detection precision stabilization and miniaturization. The contactless switch (1) comprises the following components: a magnetic force detection sensor (12); a terminal base (5) which is provided with the magnetic force detection sensor (12); an operation component (4) which is provided with a detection object of the magnetic force detection sensor (12), namely a magnet (7); a holding member (3) which is combined with the terminal base (5) and holds the operation component (4) with a mode that the operation component (4) can slide relatively to the magnetic force detection sensor (12); and a switch housing (2) which accommodates the holding member (3), the operation component (4) held by the holding member (3), and one part of the terminal base (5). In the contactless switch (1), the magnet (7) is configured for forming two magnetic fields which are separated around an axis of the terminal base (5) for a certain distance. The magnetic force detection sensor (12) outputs a detection signal in a superposed axis of two magnetic fields formed by the magnet (7) when a magnetic flux overturning position which is turned over in the direction of the magnetic line is detected.

Description

Noncontacting switch

Technical field

The present invention relates to the noncontacting switch that a kind of brake lamp switch as vehicle etc. uses.

Background technology

In the past, mainly in the brake lamp switch etc. of vehicle use sliding contact formula switch, this sliding contact formula switch adjusts without the need to the position of each part, but because it has the sliding part of machinery, so, the intrusion existed because of dust, water, lubricating grease etc. cause poor flow, contact friction thus cause producing the problems such as extraordinary noise.

Therefore, in recent years, the noncontacting switch of the magnetic force detecting sensor of the Hall element of the magnetic force using magnet and detect magnet etc. is proposed, and practical application.

Such as, in patent documentation 1, propose following structure: in order to the impact not being subject to variations in temperature detects ON/OFF (ON/OFF) accurately, at the two ends of moving range of stroke component being provided with magnet, make respectively magnet and Hall element away from, and make in the midway of displacement magnet and Hall element closest.

Patent documentation 1: Japanese Patent Laid-Open 2006-092777 publication

Disclosure of an invention

Invent technical problem to be solved

But, there is different deviation in qualities such as sizes in the magnet, the magnetic force detecting sensor that form noncontacting switch, in addition, exists and cause magnetic force change because of the impact of environment temperature etc., the intensity distributions in magnetic field easily produces error, and accuracy of detection becomes unstable such problem.

Adopt the mode in direction detecting the magnetic line of force in the noncontacting switch proposed in patent documentation 1, but due to the stronger region of the magnetic field intensity of magnet used in this noncontacting switch narrow and small, the problem that accuracy of detection is unstable such can not be solved.In addition, the point that the direction due to the magnetic line of force clearly switches does not exist, therefore, need to make stroke component increase stroke, reliably detect the position of the direction change of the magnetic line of force to Danone, stable accuracy of detection can not be obtained so exist, and the problem causing switch to maximize.

Therefore, first object of the present invention is, provides a kind of and can realize the stabilisation of accuracy of detection and miniaturized noncontacting switch.

In addition, noncontacting switch is by the visual structure that can not confirm the switching position of ON/OFF, as mentioned above, because the magnet, the magnetic force detecting sensor that form noncontacting switch exist different deviation in the qualities such as size, so, other adjustment is needed to each switch, thus there is assembling and increase man-hour, and rate of finished products is also deteriorated and causes the problem of cost increase.

Therefore, second object of the present invention is, provides a kind of without the need to other adjustment individual, and can realize assembling the reduction in man-hour, the contactless switching device of cost reduction.

The technical scheme that technical solution problem adopts

To achieve these goals, the invention described in technical scheme 1 is a kind of noncontacting switch, comprising:

Magnetic force detecting sensor;

Be configured with the terminal substrate of this magnetic force detecting sensor;

Be configured with the control member of detected object, the i.e. magnet of above-mentioned magnetic force detecting sensor;

Be combined with above-mentioned terminal substrate, and be held in by aforesaid operations component can the keeper that slides of relatively above-mentioned magnetic force detecting sensor; And

Accommodate this keeper, be held in the switch housing of a part for the aforesaid operations component of keeper and above-mentioned terminal substrate,

It is characterized in that,

Configure above-mentioned magnet to form two magnetic fields around the axle center of aforesaid operations component across predetermined distance, on the center line of two magnetic field overlaps that above-mentioned magnetic force detecting sensor is formed at above-mentioned magnet, when the flux reversal position of direction upset of the magnetic line of force being detected, output detection signal.

Invention described in technical scheme 2 is the invention described in technical scheme 1, it is characterized in that, is done circlewise by above-mentioned magnet and is configured around the axle center of aforesaid operations component, and this magnet and above-mentioned magnetic force detecting sensor is configured in coaxially.

Invention described in technical scheme 3 is the invention described in technical scheme 2, it is characterized in that, the service position of aforesaid operations component is set in the position that above-mentioned magnetic force detecting sensor is in the thickness direction central authorities of above-mentioned magnet.

Invention described in technical scheme 4 is the invention described in technical scheme 1, it is characterized in that, configures two above-mentioned magnet around the axle center of aforesaid operations component across predetermined distance, and above-mentioned magnetic force detecting sensor is configured on the axle center of aforesaid operations component.

Invention described in technical scheme 5 is the invention described in technical scheme 4, it is characterized in that, makes bar-shaped by above-mentioned magnet.

Invention described in technical scheme 6 is the invention according to any one of technical scheme 1 to 5, it is characterized in that, respectively along the glide direction of aforesaid operations component in a square one-tenth guide portion of aforesaid operations component or above-mentioned keeper, the opposing party formed chimeric with guide sections become slidable guiding fin.

Invention described in technical scheme 7 is the invention according to any one of technical scheme 1 to 6, it is characterized in that, above-mentioned terminal substrate is fixed on above-mentioned keeper, spacer block is installed on this terminal substrate, above-mentioned magnetic force detecting sensor is contained in this spacer block, thus this magnetic force detecting sensor is configured on above-mentioned terminal substrate.

Invention described in technical scheme 8 is the invention according to any one of technical scheme 1 to 7, it is characterized in that, above-mentioned magnetic force detecting sensor is electrically connected with circuit substrate, and be located at above-mentioned terminal substrate, in addition, this magnetic force detecting sensor and foregoing circuit substrate are configured in the enclosure space formed between above-mentioned keeper and above-mentioned terminal substrate.

Invention described in technical scheme 9 is the invention according to any one of technical scheme 1 to 8, it is characterized in that, the temporary fixed portion being used for aforesaid operations component to be temporarily fixed on the service position of regulation is located at above-mentioned keeper.

Invention described in technical scheme 10 is the invention described in technical scheme 9, it is characterized in that, the spring exerted a force towards initial position direction to aforesaid operations component is set, the locking pawl that use can be out of shape towards the inner elastomeric of this keeper forms the temporary fixed portion of above-mentioned keeper, making this locking pawl strain and under state outstanding in keeper, make the aforesaid operations component that exerted a force by above-mentioned spring and above-mentioned locking pawl locking, aforesaid operations component is temporarily fixed on the service position of regulation relative to above-mentioned keeper.

Invention described in technical scheme 11 is the invention described in technical scheme 9 or 10, it is characterized in that, the terminal substrate being configured with above-mentioned magnetic force detecting sensor is set, this terminal substrate and above-mentioned keeper are arranged respectively and is used for this terminal substrate and above-mentioned keeper to be bonded into the position adjusting section that can adjust relative position, utilize this adjustment part, position to adjust the position relative to above-mentioned terminal substrate of above-mentioned keeper, adjust the detection position of the described magnetic force detecting sensor relative with the magnet being configured at described control member.

Invention described in technical scheme 12 is the invention according to any one of technical scheme 1 to 11, it is characterized in that, be provided with adjustment part, position and position fixing part, wherein, adjustment part, above-mentioned position makes the relative position of above-mentioned keeper and above-mentioned terminal substrate change, adjust the detection position of above-mentioned magnetic force detecting sensor, above-mentioned position fixing part, by the above-mentioned keeper be bonded to each other and above-mentioned terminal substrate are assembled into above-mentioned switch housing, fixes the relative position of above-mentioned magnet and above-mentioned magnetic force detecting sensor.

Invention described in technical scheme 13 is the invention described in technical scheme 12, it is characterized in that, adjustment part, described position is made up of threaded portion, this threaded portion is formed at above-mentioned keeper and above-mentioned terminal substrate respectively, screw togather to make above-mentioned keeper and above-mentioned terminal substrate, above-mentioned position fixing part is made up of rotation stopping portion, this rotation stopping portion is formed at above-mentioned keeper and above-mentioned terminal substrate respectively, to stop the above-mentioned keeper and the relative rotation of above-mentioned terminal substrate in above-mentioned switch housing that are bonded to each other.

Invention described in technical scheme 14 is the invention described in technical scheme 13, it is characterized in that, described position fixing part is chimeric towards the insertion in above-mentioned switch housing with above-mentioned terminal substrate by the above-mentioned keeper be bonded to each other, and stops the relative rotation in above-mentioned switch housing of above-mentioned keeper and above-mentioned terminal substrate.

Invention described in technical scheme 15 is the invention described in technical scheme 14, it is characterized in that, use non-circular fitting portion to form the rotation stopping portion being formed at above-mentioned keeper and above-mentioned terminal substrate respectively, and the fitting portion inserting the above-mentioned switch housing be fitted together to for this rotation stopping portion is also formed non-circular.

Invention according to technical scheme 1 to 5, by distributed magnet to form two magnetic fields around the axle center of control member across predetermined distance, thus on the center line of two magnetic field overlaps, produce the flux reversal position of the direction upset of the magnetic line of force, due to magnetic force detecting sensor output detection signal when this flux reversal position being detected, therefore, the switching point of the ON/OFF (ON/OFF) of signal can be detected reliably, and can stably obtain higher accuracy of detection.In addition, if increasing magnetic field, then fully can guarantee the distance to flux reversal position near magnet, therefore, the stroke of control member becomes large, can by this portion size miniaturized for this noncontacting switch.In addition, the central axis service position of control member being set in the magnet of ring-type is in the position of the thickness direction central authorities of magnet, namely, a magnetic force detecting sensor is set in the flow direction of magnet and the stable position of magnetic field intensity, so can be used stably to obtain higher accuracy of detection.Configure two bar-shaped magnet around the axle center of control member across predetermined distance, and magnetic force detecting sensor is configured on the axle center of control member, also can obtain identical effect.

Invention according to technical scheme 6, control member is guided by the guide be made up of guide portion and guiding fin, and correctly slide along keeper, therefore, magnetic force detecting sensor is correctly positioned at the central authorities of the ringshaped magnet being held in this control member, thus reliably can prevent the misoperation of the service position of noncontacting switch.

Invention according to technical scheme 7, magnetic force checkout gear is configured on terminal substrate with the state being contained in sensor holder, therefore, there will not be because of this magnetic force detecting sensor alignment error, work time vibration etc. load and cause the situation of the position deviation of magnetic force detecting sensor, thus can stably obtain higher accuracy of detection.

Invention according to technical scheme 8; magnetic force detecting sensor and circuit substrate are configured in the enclosure space formed between keeper and terminal substrate; therefore; precision component and magnetic force detecting sensor and circuit substrate can be protected from the impact of dust, water, lubricating grease etc., and the job stability that this noncontacting switch is higher can be guaranteed.

Invention according to technical scheme 9, control member (magnet) can be temporarily fixed on the service position (position that ON/OFF switches) of regulation relative to keeper, therefore, can by magnet and magnetic force detecting sensor easily and adjust to the position relationship that ON/OFF switches accurately, without the need to switch other adjustment, thus reduction, the cost reduction of assembling man-hour can be realized.

Invention according to technical scheme 10, making the locking pawl strain in the temporary fixed portion of formation keeper and under state outstanding in keeper, the control member exerted a force by spring if make and locking pawl locking, then control member can be held in temporary holding location by locking pawl, therefore, do not use special fixture etc., just can touch simple to operate service position control member (magnet) being temporarily fixed on regulation relative to keeper with one.In addition, if the active force press-in overcoming spring is temporarily fixed on the control member of assigned position relative to keeper, then this control member departs from locking pawl, and locking pawl resets into original state due to elasticity, thus remove the temporary fixed of control member, control member can freely move.Like this, can only with the such simple operations of the active force push operation component overcoming spring to remove temporary fixed towards keeper of control member, for the temporary fixed releasing of control member without the need to special operation.

Invention according to technical scheme 11, utilize the adjustment part, position being located at keeper and terminal substrate respectively to adjust the relative position of keeper and terminal substrate, therefore, inching can be carried out to the magnet configured in the control member being temporarily fixed on keeper and the relative position of the magnetic force detecting sensor being configured at terminal substrate, and easily and accurately above-mentioned magnet and magnetic force detecting sensor can be adjusted to the position relationship of ON/OFF switching.

Invention according to technical scheme 12, utilize adjustment part, position to change the relative position of keeper and terminal substrate, thus the relative position of the magnet configured in the control member being held in keeper and the magnetic force detecting sensor being configured at terminal substrate can be adjusted, by this, the detection position of magnetometric sensor can be adjusted.In addition, the adjustment of this position can be carried out in the process of operation bolt being assembled into terminal substrate, therefore, just can adjust the detection position of magnetic force detecting sensor without the need to other operations, and can cut down assembling man-hour and operation, thus realizes cost reduction.In addition, if using be bonded to each other, keeper that the detection position of magnetic force detecting sensor is adjusted and terminal substrate be assembled into switch housing as unit, then utilize position fixing part the relative position of magnet and magnetic force detecting sensor can be fixed on the position after adjustment, keeper and terminal substrate can not rotate, so, afterwards, the detection position of magnetic force detecting sensor can not produce deviation.That is, do not use other components, utilize construction of switch just can provide the transducer of the high-quality that precision is high.In addition, simultaneously the operation of fixing due to this position completes in the operation keeper be bonded to each other and terminal substrate being assembled into switch housing as unit, therefore, can cut down assembling man-hour, thus realize cost and reduce.

Invention according to technical scheme 13, adjustment part, position is under the state screwed togather each other the threaded portion being formed at keeper and terminal substrate respectively, if make a side of keeper or terminal substrate rotate relative to the opposing party, then both relative positions can change, the magnet configured in the control member being held in keeper can carry out with the adjustment of relative position of the magnetic force detecting sensor being configured at terminal substrate among the operation in conjunction with keeper and terminal substrate, position adjustment just can be carried out simply without the need to using the special instruments such as fixture, thus assembling man-hour can be cut down and cost reduction can be realized.In addition, if the keeper be bonded to each other and terminal substrate are loaded in switch housing as unit, then utilize the relative rotation being formed at keeper respectively and can stoping this keeper and terminal substrate in switch housing with the rotation stopping portion of terminal substrate, therefore, the relative position of magnet and magnetic force detecting sensor can be fixed on the position after adjustment.In addition, this relative position is fixedly terminate simply keeper and terminal substrate being loaded in the operation in switch housing as unit while.In addition, by using threaded portion to make keeper, terminal substrate and the switch housing be unitized screw togather, the moving axially in switch housing of keeper and terminal substrate can reliably be prevented.

Invention according to technical scheme 14, by after utilizing adjustment part, position to adjust relative position, the keeper be bonded to each other and terminal substrate being inserted is fitted in switch housing, above-mentioned keeper and the relative rotation of terminal substrate in switch housing can be stoped, therefore, without the need to special fixture, operation, the position after just the relative position of magnet and magnetic force detecting sensor being fixed on adjustment in the process of the assembling procedure of this noncontacting switch.In addition, owing to being partially formed position fixing part at construction of switch part, therefore, can not cause the increase of parts count, the position after reliably adjusting has been fixed.

Invention according to technical scheme 15, by the non-circular fitting portion being formed at keeper and terminal substrate is respectively inserted the non-circular fitting portion being embedded in switch housing, reliably can stop the relative rotation in switch housing of keeper and terminal substrate.

Accompanying drawing explanation

Fig. 1 is the sectional view of noncontacting switch of the present invention.

Fig. 2 is the exploded perspective view of noncontacting switch of the present invention.

Fig. 3 is the exploded perspective view of noncontacting switch of the present invention.

Fig. 4 (a) ~ Fig. 4 (e) is the sectional view of the assembling main points representing noncontacting switch of the present invention according to its process sequence.

Fig. 5 (a) ~ Fig. 5 (c) is the partial sectional view of the locking pawl of the keeper representing noncontacting switch of the present invention and the various modes of control member.

Fig. 6 (a) ~ Fig. 6 (c) is the sectional view of the action that noncontacting switch of the present invention is described.

Fig. 7 (a) ~ Fig. 7 (c) is the figure of the position relationship in magnetic field representing the magnet corresponding with the state shown in Fig. 6 (a) ~ Fig. 6 (c) and magnetic field detection sensor.

Fig. 8 is the sectional view of the terminal base portion of other modes of the mounting structure towards circuit substrate representing spacer block.

Fig. 9 is the stereogram of the spacer block of the noncontacting switch of other modes of the present invention.

Figure 10 (a) ~ Figure 10 (c) is the stereogram representing the spacer block of the noncontacting switch of other modes of the present invention and the assembling main points of circuit substrate according to its process sequence.

(symbol description)

1 noncontacting switch

2 switch housings

The shell main body of 2A switch housing

The car body installation portion of 2B switch housing

The connecting hole of 2a switch housing

The outer screw section of 2b switch housing

The through hole of 2c switch housing

3 keepers

The main part of 3A keeper

The rotation stopping portion of 3B keeper

The dividing plate of 3C keeper

The guide portion of 3a keeper

The locking pawl (temporary fixed portion) of 3b keeper

The engaging protrusion of 3c keeper

The female threaded portion of 3d keeper

4 control members

The piston portion of 4A control member

The axle of 4B control member

The magnet fixed part of 4C control member

The guiding fin of 4a control member

The recess of 4b control member

The end face of 4b-1 recess

The projection of 4c control member

The engaging portion of 4d control member

5 terminal substrates

The rotation stopping portion of 5A terminal substrate

The base portion of 5B terminal substrate

The outer screw section of 5a terminal substrate

6 springs

7 magnet

8 terminals

9 circuit substrates

The circular hole of 9a, 9b circuit substrate

10 spacer blocks

11 bolts

12 magnetic force detecting sensors

13 terminals

14 0 shape rings

15 supports

16 nuts

17 car bodies

18 brake lever

The field region of A ~ C magnet

A represents the line of flux reversal position

S enclosure space

Embodiment

Below, with reference to the accompanying drawings embodiments of the present invention are described.

Fig. 1 is the sectional view of noncontacting switch of the present invention, Fig. 2 and Fig. 3 is the exploded perspective view of this noncontacting switch, illustrated noncontacting switch is the brake lamp switch of vehicle, as described later, when driver depresses not shown brake pedal (on-position), ON (opening) signal is exported as output signal, thus make not shown stop lamp bright light, when pin being left brake pedal (non-brake state), export OFF (pass) signal as output signal, thus stop lamp is turned off the light.In the following description, the left side of Fig. 1 is set to front, right side is set to rear, and left and right directions is set to axis.

And, as shown in Figure 1, noncontacting switch 1 is constructed as follows: by keeper 3, can along the longitudinal direction (left and right directions of Fig. 1) slidably chimeric control member 4, the terminal substrate 5 etc. that screws togather with rear end (right-hand member of Fig. 1) inner circumferential of keeper 3 being held in this keeper 3 inside load the inside of switch housing 2.Above-mentioned switch housing 2, keeper 3, control member 4 and terminal substrate 5 utilize dielectric resin integrally formed respectively.

Below, each composed component of noncontacting switch 1 is described.

(switch housing)

As shown in Figures 2 and 3, the car body installation portion 2B of the cylindrical shape that the shell main body 2A of above-mentioned switch housing 2 by the square tube shape of open rearward end and the central part from the end face of this shell main body 2A integrally extend forward is in the horizontal direction formed, and is incorporated with above-mentioned keeper 3, aforesaid operations component 4 and above-mentioned terminal substrate 5 in shell main body 2A.In addition, be formed with the connecting hole 2a of elongated rectangle respectively in the position opposing upper and lower of the shell main body 2A of this switch housing 2, be circumferentially formed with multiple outer screw section 2b vertically in the periphery of car body installation portion 2B.

(keeper)

Above-mentioned keeper 3 comprises cylindric main part 3A, is formed with the rotation stopping portion 3B of rectangular flange shape in the rear end of this main part 3A.Therefore, as shown in Figure 1, keeper 3 is inserted into the inside of the shell main body 2A of the square tube shape of switch housing 2, and makes the rotation stopping portion 3B of the rectangular flange shape of keeper 3 chimeric with the inside of this shell main body 2A, thus this rotation of keeper 3 in switch housing 2 can be stoped.

In addition, as shown in Figures 2 and 3, (in Fig. 3, three places are only illustrated) everywhere and are formed the guide portion 3a of the semi-circular cylindrical extended vertically in the periphery of the body 3A of keeper 3, be formed with the locking pawl 3b (only illustrating in Fig. 2 and Fig. 3) of the rectangle forming temporary fixed portion in the upper and lower surface of main part 3A, above-mentioned locking pawl 3b can centered by base end part strain.In addition, in the upper and lower surface of the rotation stopping portion 3B of keeper 3, the engaging protrusion 3c (only illustrating in Fig. 2 and Fig. 3) of the claw-like engaged with the above-mentioned connecting hole 2a of the upper and lower surface of the shell main body 2A being formed at switch housing 2 is equipped with respectively integratedly.

In addition, as shown in Figure 1, at the axial pars intermedia of the inside of keeper 3, the central part dividing plate 3C that (control member 4 side) is outstanding is formed with forward.In addition, as shown in Figure 3, in the inner circumferential of the rotation stopping portion 3B of keeper 3, the female threaded portion 3d forming adjustment part, position together with the outer screw section 5a of the periphery, front end being formed at above-mentioned terminal substrate 5 is formed with.

(control member)

Aforesaid operations component 4 by have the piston portion 4A of bottom tube-like and from the center of the end face of this piston portion 4A forward the axle 4B of the pole shape of one horizontal-extending form, piston portion 4A is intercalated in the main part 3A of keeper 3 with the form that can slide axially, and axle 4B inserts the through hole 2c of the car body installation portion 2B being held in switch housing 2 with the form that can slide axially.In addition, be formed with vertically everywhere guide fin 4a in the periphery of piston portion 4A, above-mentioned guiding fin 4a is chimeric with slidable form with the guide sections 3a of periphery of the main part 3A being formed at keeper 3, thus the rotation of prevention control member 4.At this, as shown in Figure 1, in above-mentioned each guide portion 3a of keeper 3, contain the spring 6 contracting and be loaded between the dividing plate 3C of keeper 3 and the piston portion 4A of control member 4, control member 4 is by spring 6 (direction that axle 4B gives prominence to from the car body installation portion 2B of switch housing 2) force forward.

In addition, as shown in Figures 2 and 3, in the upper and lower surface of the periphery of the piston portion 4A of control member 4, the recess 4b for entering for the above-mentioned locking pawl 3b being formed at keeper 3 is formed.

In addition, be formed with the magnet fixed part 4C of minor diameter in the rearward end of the piston portion 4A of control member 4, be equipped with the projection 4c of the ring-type worked as locating part in the front-end surface of piston portion 4A around axle 4B with one heart.In addition, as shown in Figure 1, be fitted together to the magnet 7 of ring-type in the periphery of magnet fixed part 4C, the engaging portion 4d that this magnet 7 is formed on the claw-like of the circumferential many places of the periphery of magnet fixed part 4C fixes, and configures around the axle center of control member 4.

(terminal substrate)

Above-mentioned terminal substrate 5 is configured as roughly cylindric, is formed with the rotation stopping portion 5A of rectangular flange shape, is being formed with above-mentioned outer screw section 5a than 5A outside on the front, this rotation stopping portion in the middle of the axis in its periphery.In addition, as shown in Figure 1, in the base portion 5B of terminal substrate 5, be integrally equipped with three butt 8 by insert part forming, maintain discoideus circuit substrate 9 in the front end of above-mentioned terminal 8.

At this, as shown in Figures 2 and 3, circular hole 9a is formed at the central part of foregoing circuit substrate 9, on circuit substrate 9, utilize the bolt 11 inserting the circular hole 9a of circuit substrate 9 to be provided with spacer block 10, in this spacer block 10, storage maintains the magnetic force detecting sensor 12 of the Hall element of the magnetic force for detecting above-mentioned magnet 7 etc.This magnetic force detecting sensor 12 and above-mentioned magnet 7 be configured at coaxial on, magnetic force detecting sensor 12 utilizes terminal 13 to be electrically connected with circuit substrate 9.

And, on terminal substrate 5, assisted group is equipped with circuit substrate 9, spacer block 10, magnetic force detecting sensor 12 etc. in advance, as shown in Figure 1, the outer screw section 5a formed by making the periphery installing the terminal substrate 5 of above-mentioned part in assisted group screws togather with the negative thread 3d of the rearward end inner circumferential being formed at keeper 3, a part for this terminal substrate 5 is loaded in keeper 3.Keeper 3 is closed by the zero shape ring 14 with the embedding company in the periphery of terminal substrate 5 airtightly with the fitting portion of terminal substrate 5.

As mentioned above, when a part for terminal substrate 5 is loaded in keeper 3, as described in Figure 1, between this terminal substrate 5 and dividing plate 3C of keeper 3, enclosure space S is formed with.Circuit substrate 9, spacer block 10 and magnetic force detecting sensor 12 is contained in this enclosure space S.In addition, the magnet 7 of ring-type is around the configuration of the axle center of control member 4, and this magnet 7 and magnetic force detecting sensor 12 are configured on the axle center of control member 4 coaxially.

(the assembling main points of noncontacting switch)

Then, according to Fig. 4 (a) ~ Fig. 4 (e), the assembling main points of noncontacting switch 1 as constituted above are described.Fig. 4 (a) ~ Fig. 4 (e) is the sectional view of the assembling main points representing noncontacting switch according to its process sequence.

When assembling noncontacting switch 1, first, control member 4 (magnet 7) is temporarily fixed on the position (position (position shown in Fig. 4 (b), flux reversal position described later) of the ON/OFF signal switching of magnetic force detecting sensor 12) of regulation relative to keeper 3.

That is, as shown in Fig. 4 (a), the piston portion 4A of control member 4 is embedded the front opening part of keeper 3, and overcome the active force of spring 6, overall towards shown by arrow direction push operation component 4.In addition, as shown in Fig. 4 (b), when the recess 4b of upper and lower surface of periphery of the piston portion 4A being formed at control member 4 is consistent with the locking pawl 3b of keeper 3, upper and lower locking pawl 3b is pressed towards shown by arrow direction (radially inner side), to make its strain centered by its base end part, the leading section becoming locking pawl 3b is projected into the state in the recess 4b of control member 4.In this condition, by removing the press-in of control member 4, utilize the active force of spring 6 and control member 4 is restored, therefore, the leading section of this locking pawl 3b abuts with the end face 4b-1 of recess 4b, control member 4 is prevented from towards the movement of its front (left of Fig. 4 (b)) and is temporarily fixed on shown position, thus is assembled with control member 4 is auxiliary by keeper 3.Now, the leading section of locking pawl 3b engages with the end face 4b-1 of the recess 4b of control member 4, under the active force of spring 6, make the end face 4b-1 of recess 4b abut with the power specified with the end face of locking pawl 3b, therefore, as shown in Fig. 4 (b), locking pawl 3b maintains the state that the inner elastic towards keeper 3 is out of shape.

As shown in Fig. 5 (a), also the end face 4b-1 of the recess 4b of the leading section of locking pawl 3b and control member 4 can be made tabular surface to abut, but in this case, be with the frictional force of snap-latch surface to stop the recovery of locking pawl 3b, thus the temporary fixed of control member 4 is in an unsure state.Therefore, as shown in Fig. 5 (b), as preferably, adopt and make snap-latch surface have the structure tilting the leading section of locking pawl 3b is engaged with the end face 4b-1 of recess 4b.In addition, as shown in Fig. 5 (c), if the snap-latch surface of the leading section of locking pawl 3b and recess 4b is set as curved surface, then when locking pawl 3b restores, there will not be because the leading section of this locking pawl 3b and the end face 4b-1 of recess 4b interfere and can not remove the situation of the temporal hold state of control member 4, in addition, also can not produce control member 4 block when sliding and hinder such problem of sliding.

As mentioned above, when control member 4 to be temporarily fixed on position (position (flux reversal position described later) of the ON/OFF signal of switch in magnetic force detecting sensor 12) of regulation relative to keeper 3, as shown in Fig. 4 (c), make the female threaded portion 3d of the end inner circumferential being formed at keeper 3 and assisted group in advance that circuit substrate 9 is housed, the pin thread 5a of the terminal substrate 5 of magnetic force detecting sensor 12 grade screws togather, if the keeper 3 such as making assisted group install rotates relative to terminal substrate 5, then the relative position of both axis can change, thus energy inching is configured at the relative position of the magnet 7 being kept the temporary fixed control member of part 34 and the magnetic force detecting sensor 12 being configured at terminal substrate 5.Namely, the female threaded portion 3d being formed at keeper 3 and the outer screw section 5a being formed at terminal substrate 5 screw togather each other and form adjustment part, position, utilize this adjustment part, position to carry out the relative position of inching magnet 7 and magnetic force detecting sensor 12, thus the error of the aftermentioned flux reversal position produced because of the deviation of magnetic field intensity can be absorbed.

Specifically, magnetic force detecting sensor 12 is connected to not shown lamp, while confirm bright light/turn off the light (output of the ON/OFF signal of magnetic force detecting sensor 12) of this lamp, while make keeper rotate together with control member 4 to come the relative position of inching magnet 7 and magnetic force detecting sensor 12, when the distance L between the two shown in Fig. 4 (c) becomes the distance switching ON/OFF signal, stop the rotation of keeper 3 and control member 4.

As implied above, in conjunction with the temporary fixed keeper 3 having a control member 4 and assisted group in advance, circuit substrate 9 is being housed by auxiliary assembling, the terminal substrate 5 of magnetic force detecting sensor 12 grade, and when inching is carried out to the relative position of the magnet 7 and magnetic force detecting sensor 12 that are configured at each component above-mentioned, as shown in Fig. 4 (d), if above-mentioned entirety is inserted in switch housing 2 as a unit, and the locking projection 3c of the upper and lower surface being formed at keeper 3 is engaged with the connecting hole 2a of the upper and lower surface being formed at switch housing 2, then cell location can be loaded in switch housing 2.Like this, because rotation stopping portion 3B, 5A (with reference to Fig. 2 and Fig. 3) of being formed at the rectangular flange shape of keeper 3 and terminal substrate 5 are respectively inner chimeric with the shell main body 2A of the square tube shape of switch housing 2, therefore, keeper 3 can be stoped, be temporarily fixed on the control member 4 of keeper 3 and the rotation of terminal substrate 5 in switch housing 2, thus the relative position of energy fixed magnet 7 and magnetic force detecting sensor 12.

In addition, last as shown in Fig. 4 (e), the active force overcoming spring 6 towards the rear pressing operation component 4 time, the end face 4b-1 being formed at the recess 4b of the piston portion 4A of control member 4 departs from the locking pawl 3b of keeper 3 and removes both engaging, locking pawl 3b resets into original state because elasticity expands towards radial outside (shown by arrow direction), thus removes temporary fixed relative to keeper 3 of control member 4.Like this, allow the slip of control member 4, when hand is left control member 4, this control member 4 is (shown by arrow direction) slip forward because of the active force of spring 6, under the state that the projection 4c of end face being formed at piston portion 4A abuts with the inner face of the shell main body 2A of switch housing 2, control member 4 is static, and now, the axle 4B of this control member 4 is from switch housing 2 only outstanding ormal weight.

Assembling noncontacting switch 1 to be got according to described above, this noncontacting switch 1 is applied to the purposes of the stop lamp as vehicle.

(action of noncontacting switch)

Then, according to Fig. 6 (a) ~ Fig. 6 (c) and Fig. 7 (a) ~ Fig. 7 (c), the action of the noncontacting switch 1 that the stop lamp as vehicle uses and Cleaning Principle are described.Fig. 6 (a) ~ Fig. 6 (c) is the sectional view of the action that noncontacting switch is described, Fig. 7 (a) ~ Fig. 7 (c) is the figure representing the magnet corresponding with the state shown in Fig. 6 (a) ~ Fig. 6 (c) and the position relationship of magnetic field detection sensor in magnetic field.

The support 15 of L-shaped is fallen through what be installed on car body by making the car body installation portion 2B of switch housing 2, and screw the nut 16 screwed togather with the outer screw section 2b of car body installation portion 2B (with reference to Fig. 2 and Fig. 3), noncontacting switch 1 is installed on car body 17 via support 15, and is configured at the rear of brake lever 18.

And, do not depress the state (non-brake state) of the not shown brake pedal of the lower end of brake lever 18 driver under, as shown in Fig. 6 (a), brake lever 18 abuts with the axle 4B of noncontacting switch 1, thus is pressed in keeper 3 by this axle 4B.In this condition, the magnet 7 being configured at control member 4 is positioned at position immediate with magnetic force detecting sensor 12, magnetic force detecting sensor 12 is positioned at the stable magnetic field range of the magnetic field intensity of magnet 7, in the figure 7 owing to many magnetic lines of force of being sidelong out being detected upward and becoming ON state.In addition, in the present embodiment, adopt under ON state, magnetic force detecting sensor 12 exports the structure of OFF signal, therefore, not shown stop lamp is turned off the light.

But magnetic force detecting sensor 12 judges the power in magnetic field, the component of magnetic pole with the quantity of the magnetic line of force, direction etc., but illustrate the intensity in magnetic field and the direction of the magnetic line of force that are formed by the magnet 7 of the ring-type used in present embodiment in the figure 7.Because the magnet 7 of this ring-type is formed with two magnetic fields around the axle center of control member 4, the intensity in this magnetic field is comparatively strong in the region A nearer with magnet 7, and in region C far away, two magnetic field cancels each other out and more weak, in the region B of this centre, represent median.In addition, arrow is used to represent the direction of the magnetic line of force.In the present embodiment, in the figure 7, the downside of magnet 7 is N pole, and upside is S pole.Therefore, because the magnetic line of force is from N pole towards S pole, so on the center line that two magnetic fields of the region A nearer with magnet 7 are overlapping, as shown in Fig. 7 (a), owing to concentrating towards many magnetic lines of force of upside (from N pole to S pole), therefore, stable field region is formed.On the other hand, from in the region C away from magnet 7, even if the magnetic line of force also disperses on the center line of two magnetic field overlaps of magnet 7, the direction forming the magnetic line of force can not become the field region of the instability in certain direction, as shown in dotted line a, also there is the flux reversal position of the direction upset of the magnetic line of force.

As shown in Fig. 6 (a), do not depress the state (non-brake state) of the not shown brake pedal of the lower end of brake lever 18 driver under, axle 4B is held in bulged-in service position, as shown in Fig. 7 (a), magnet 7 is positioned at position immediate with magnetic force detecting sensor 12, now described above, magnetic force detecting sensor 12 is positioned at the field region of the magnetic field intensity stable (many magnetic lines of force towards upside (from N pole to S pole) concentrate the state of existence) of magnet 7, therefore, the magnetic line of force of being sidelong out in figure 6 can reliably be detected upward, thus ON state can be maintained.In addition, in the present embodiment, because magnetic force detecting sensor 12 adopts the structure exporting OFF signal under ON state, therefore, the state of turning off the light of not shown stop lamp can reliably be maintained.

When car brakeing, when driver is with riding lower brake pedal, when brake lever 18 is rotated centered by the not shown rotating fulcrum on its top, in noncontacting switch 1, abutted with brake lever 18 by the axle 4B that spring 6 exerts a force forward, and along with the action of this brake lever 18, give prominence to gradually from switch housing 2, accompany with it, control member 4 slides forward with the magnet 7 being configured at control member 4.In addition, in this process, when magnet 7 arrives position (only the leaving the position of the distance L shown in Fig. 4 (c)) shown in Fig. 6 (b) and Fig. 7 (b) relative to magnetic force detecting sensor 12, as shown in Fig. 7 (b), magnetic force detecting sensor 12 is arranged in the flux reversal position in the magnetic field of magnet 7, and (line be represented by dotted lines a).In this condition, the direction due to the magnetic line of force overturns 180 °, and therefore, magnetic force detecting sensor 12 can not detect the magnetic line of force that the upside from magnet 7 towards Fig. 7 releases, and this magnetic force detecting sensor 12 becomes OFF state from ON state.In addition, in the present embodiment, because magnetic force detecting sensor 12 adopts the structure exporting ON signal in the off condition, therefore, outputing signal from OFF signal switching is ON signal, thus makes not shown stop lamp bright light.

In addition, when driver depresses brake pedal further from the state shown in Fig. 6 (b), as shown in Fig. 6 (c), braking vane 18 is away from the axle 4B of noncontacting switch 1, control member 4 stops at illustrated off-position (on-position) because the projection 4c of the end being formed at its piston portion 4A abuts with the inner face of switch housing 2, thus axle 4B can be made to maintain from the outstanding state of switch housing 2.In this condition, as shown in Fig. 7 (c), because magnetic force detecting sensor 12 crosses flux reversal position (the region C that the direction that dotted line a) is positioned at the magnetic line of force overturns in the magnetic field of magnet 7, therefore, in the figure 7, there is not the magnetic line of force of being sidelong out from magnet 7 upward, thus make magnetic force detecting sensor 12 reliably maintain OFF state.In addition, continue to export ON signal as output signal, so, stop lamp can be made to maintain the state of bright light.Namely, if be that boundary depresses brake pedal further with the state shown in Fig. 6 (b) and Fig. 7 (b), then stop lamp can continue bright light, by pin being lifted away from from the state (on-position) depressing brake pedal, turn back in the process of the original operating state (non-brake state) shown in Fig. 6 (a) in brake lever 18, after this braking vane 18 is by the position shown in Fig. 6 (b) and Fig. 7 (b), magnetic force detecting sensor 12 becomes ON state, the output signal of magnetic force detecting sensor 12 is OFF signal from ON signal switching, thus stop lamp is turned off the light.

(other modes of the mounting structure towards circuit substrate of spacer block)

Then, according to Fig. 8 ~ Figure 10, other modes of the mounting structure towards circuit substrate 9 of spacer block 10 are described.

Fig. 8 is the sectional view of the terminal base portion of other modes of the mounting structure towards circuit substrate representing spacer block, Fig. 9 is the stereogram of spacer block, and Figure 10 (a) ~ Figure 10 (c) is the stereogram of the assembling main points representing spacer block and circuit substrate according to its process sequence.

In the above-described embodiment, have employed and utilize bolt 11 that spacer block 10 is installed to the structure of circuit substrate 9, but in the present embodiment, as shown in Figure 8, adopt the structure of installing by spacer block 10 being inserted circuit substrate 9.

At this, as shown in Figure 9, keep the end, inserting side of the spacer block 10 of magnetic force detecting sensor 12 in collecting, be circumferentially integrally equipped with two alignment pin 10a and two engagement pawl 10b alternately.

On the other hand, as shown in Figure 10 (a), at the central portion of circuit substrate 9, be formed with the connecting hole 9c of the elongated hole-shape of the circular hole 9b for the above-mentioned alignment pin 10a insertion of spacer block 10 and the above-mentioned engagement pawl 10b engaging for spacer block 10, around above described holes, be formed with three square hole 9d and three square hole 9e, wherein, three square hole 9d insert for three terminals 13 extended for the magnetic force detecting sensor 12 being held in spacer block 10 from collecting, and three square hole 9e are used for inserting for three terminals 8 of penetrating terminal pedestal 5.

And, as shown in Figure 10 (a), collecting maintains in the spacer block 10 of magnetic force detecting sensor 12, the circular hole 9b that the alignment pin 10a being based in spacer block 10 inserts circuit substrate 9 is located, and the terminal 13 extended from magnetic force detecting sensor 12 is inserted the square hole 9d of circuit substrate 9, the engagement pawl 10b of spacer block 10 is engaged with the connecting hole 9c of circuit substrate 9, spacer block 10 is installed to circuit substrate 9 as Suo Shi Figure 10 (b).

Then, as shown in Figure 10 (c), if the leading section of the terminal 8 of terminal substrate 5 side to be inserted by above main points the square hole 9e being assembled with the circuit substrate 9 of spacer block 10, then spacer block 10, collecting is held in the magnetic force detecting sensor 12 of spacer block 10 and circuit substrate 9 is installed in terminal board 5, thus magnetic force detecting sensor 12 is configured on terminal substrate 5.The location indentations 9f that circuit substrate 9 is formed on the periphery of this circuit substrate 9 locates with the alignment pin 5b with the leading section of outer screw section 5a being located at terminal substrate 5.This is also identical mechanism in the above-described embodiment.In addition, if utilize soldering by each terminal 8 of magnetic force detecting sensor 12 and circuit substrate 9 and circuit substrate 9 and terminal substrate 5,13 affixed, above-mentioned component is fixed on pedestal terminal 5, then can correctly fixes magnetic force detecting sensor 12 without position deviation.

(effect of execution mode)

As mentioned above, in the noncontacting switch 1 involved by present embodiment, owing to adopting following structure: use the magnet 7 of ring-type to be formed with two magnetic fields around the axle center of control member 4 across predetermined distance, on the center line of above-mentioned two magnetic field overlaps, produce the direction of the magnetic line of force and overturn the flux reversal position of 180 ° (dotted line shown in Fig. 7 a), when magnetic force detecting sensor 12 detects this flux reversal position (when the magnetic line of force (magnetic line of force of being sidelong out in Fig. 7) towards the direction releasing of regulation can not be detected upward), OFF state is become from ON state, thus will output signal from OFF signal switching to ON signal, therefore, magnetic force detecting sensor 12 reliably can detect the switching point of the ON/OFF of output signal, thus can stably obtain higher accuracy of detection.Namely, under the transport condition of vehicle, magnetic force detecting sensor 12 is arranged in the stable field region that many magnetic lines of force that Fig. 7 is sidelong out concentrate existence upward, therefore, this magnetic force detecting sensor 12 represents the detection reaction to the magnetic line of force, maintain ON state, and there will not be stop lamp to miss the situation of bright light.

In addition, depress brake pedal, after flux reversal position being detected, the direction of the magnetic line of force overturns 180 °, therefore, in the Fig. 7 representing magnetic force detecting sensor 12 detection reaction, there is not the magnetic line of force of being sidelong out upward, there will not be magnetic force detecting sensor 12 to become the situation of ON state, so can reliably make stop lamp bright light.Therefore, misoperation ground can not had correctly to carry out the bright light of the stop lamp produced due to the depressing operation of brake pedal and the switching of turning off the light.

In addition, noncontacting switch 1 involved according to the present embodiment, there is the character moving flux reversal position according to magnetic field intensity, if increasing magnetic field, then fully can guarantee the distance to flux reversal position near magnet 7, even if when by thinning for magnet self, by using the magnet that magnetic field intensity is stronger, the stroke of control member 4 can be increased, also can obtain the effect that can realize the thinning size of miniaturized for this noncontacting switch 1 magnet simply.

In addition, in the noncontacting switch 1 involved by present embodiment, control member 4 is guided by the guide be made up of the guide portion 3a being located at keeper 3 and the guiding fin 4a being formed at control member 4, and correctly slide along keeper 3, therefore, magnetic force detecting sensor 12 is correctly positioned at the central authorities of the magnet 7 of the ring-type being held in this control member 4, thus misoperation when can reliably prevent noncontacting switch 1 from working.

In addition, in the present embodiment, due to magnetic force detecting sensor 12 is configured on terminal substrate 5 under the state being contained in spacer block 10, so, there will not be because of this magnetic force detecting sensor 12 alignment error, operation time vibration etc. load and cause the situation that the position of magnetic force detecting sensor 12 offsets, thus obtain higher accuracy of detection.

In addition, in the noncontacting switch 1 involved by present embodiment, owing to control member 4 (magnet 7) can be temporarily fixed on the service position (position that ON/OFF switches) of regulation relative to keeper 3, therefore, easily and accurately magnet 7 and magnetic force detecting sensor 12 can be adjusted to the position relationship that ON/OFF switches, do not need point other adjustment, thus reduction, the cost reduction of assembling man-hour can be realized.

Control member 4 temporary fixed in, making the locking pawl 3b strain in the temporary fixed portion of formation keeper 3 and under state outstanding in keeper 3, make the control member 4 that exerted a force by spring 6 locking with locking pawl 3b, therefore, control member 4 can be held in temporary holding location by locking pawl 3b.So, not needing to use special fixture, using once touching the position operating and simply control member 4 (magnet 7) can be temporarily fixed on regulation relative to keeper 3.

In addition, if the active force press-in overcoming spring 6 is temporarily fixed on the control member 4 of assigned position relative to keeper 3, then this control member 4 is away from locking pawl 3b, locking pawl 3b resets into original state due to elasticity, thus remove the temporary fixed of control member 4, control member 4 can be moved freely.Like this, by means of only the shirtsleeve operation of active force push operation component 4 overcoming spring 6, just can remove temporary fixed towards keeper 3 of control member 4, for the temporary fixed releasing of control member 4 without the need to special operation.

In addition, in the present embodiment, the female threaded portion 3d as adjustment part, position of the relative position being located at keeper 3 and terminal substrate 5 respectively and outer screw section 5a is screwed togather, engage keeper 3 and terminal substrate 5, lamp is connected to magnetic force detecting sensor 12, confirm the bright light of this lamp/turn off the light, such as make keeper 3 rotate relative to terminal substrate 5 and magnet 7 and the relative position of magnetic force detecting sensor 12 are changed, by the position that the correctly inching of both relative positions switches to the ON/OFF of the output signal from magnetic force detecting sensor 12, therefore, the switching of the ON/OFF of this noncontacting switch 1 can be carried out accurately.

In addition; in the present embodiment; circuit substrate 9 and magnetic force detecting sensor 12 is configured with in the enclosure space S formed between keeper 3 and terminal substrate 5; therefore; precision component and circuit substrate 9 and magnetic force detecting sensor 12 can be protected from the impact of dust, water, lubricating grease etc., and the higher job stability of this noncontacting switch 1 can be guaranteed.

In addition, in the present embodiment, magnet 7 done circlewise owing to adopting and configures the structure of this magnet 7 and magnetic force detecting sensor 12 on coaxial around the configuration of the axle center of control member 4, therefore, following effect can be obtained, the characteristic in the magnetic field that the magnet 7 that can play ring-type produces is (in the position that the radial center of the magnet 7 from ring-type is left vertically, the magnetic field that magnet 7 produces cancels each other out and makes field weakening, and the characteristic of the direction of magnetic line of force upset), compared with the situation not being the magnet of ring-type with use, error is little, can carry out high-precision position probing.

In addition, in the noncontacting switch 1 involved by present embodiment, after control member 4 is located relative to keeper 3, make to be formed at respectively the threaded portion 3d as adjustment part, position of keeper 3 and terminal substrate 5 and threaded portion 5a to screw togather and screw, such as, the relative position changing both is rotated relative to terminal substrate 5 by making keeper 3, the relative position of the magnet 7 configured in the control member 4 being temporarily fixed on keeper 3 and the magnetic force detecting sensor 12 being configured at terminal substrate 5 can be adjusted, by this, the detection position of magnetic force detecting sensor 12 can be adjusted.In addition, the adjustment of this position carry out in conjunction with among keeper 3 and the operation of terminal substrate 5, therefore, just can be carried out without the need to the special instruments such as fixture and other operations simply, thus can cut down and assemble man-hour and operation also can realize cost reduction.

If will be bonded to each other and the keeper 3 adjusting the detection position of magnetic force detecting sensor 12 inserts switch housing 2 with terminal substrate 5 as unit assembles, the rotation stopping portion 3B and the rotation stopping portion 5A that are then formed at both rectangular flange shapes are respectively chimeric with the inside (fitting portion) of the shell main body 2A of the square tube shape of switch housing 2, thus the relative rotation each other in switch housing 2 of keeper 3 and terminal substrate 5 can be stoped, therefore, afterwards, the detection position of magnetic force detecting sensor 12 can not produce deviation.That is, do not use other components, utilize construction of switch just can provide the transducer of the high-quality that precision is high.In addition, simultaneously the operation that this position is fixed completes in the operation keeper be bonded to each other 3 and terminal substrate 5 being assembled into switch housing 2 as unit, therefore, without the need to special instrument, other operations, thus can cut down and assemble man-hour, realize cost reduction.In addition, owing to being partially formed position fixing part at construction of switch part, therefore, can not cause the increase of parts count, the position after reliably adjusting has been fixed.In the present embodiment, the shell main body 2A of the switch housing 2 rotation stopping portion 3B, 5A and confession above-mentioned rotation stopping portion 3B, 5A of being formed at keeper 3 and terminal substrate 5 are respectively fitted together to makes square tube shape, such as, as long as but its shape is can not relatively rotate non-circular, also can do the polygon beyond quadrangularly.

In the above embodiment, employ the magnet 7 of ring-type, but by configuring two bar-shaped magnet around the axle center of control member 4 across predetermined distance, and magnetic force detecting sensor 12 being configured on the axle center of control member 4, also can obtaining effect same as described above.

In addition, the above execution mode to being used as the brake lamp switch of vehicle by noncontacting switch involved in the present invention is illustrated, but noncontacting switch involved in the present invention also can be applied to other arbitrary purposes.In addition, magnetometric sensor 12 only inserts spacer block 10, but also resilient prong etc. can be located at the insertion section of spacer block 10, to prevent magnetic force detecting sensor 12 from coming off when magnetic force detecting sensor 12 is inserted spacer block 10,

In addition, in the above-described embodiment, when magnetic force detecting sensor 12 detects the ON state of the magnetic line of force of magnet 7, export OFF signal, stop lamp is turned off the light, when magnetic force detecting sensor 12 does not detect the OFF state of the magnetic line of force of magnet 7, export ON signal, make stop lamp bright light, but also can be on the contrary, adopt following structure: when magnetic force detecting sensor 12 detects the ON state of the magnetic line of force of magnet 7, export ON signal, make stop lamp bright light, when magnetic force detecting sensor 12 does not detect the OFF state of the magnetic line of force of magnet 7, export OFF signal, stop lamp is turned off the light.

But, also the car body installation portion outer screw section of car body installation portion can be located at together with holding section for switch housing is installed on the support falling L-shaped of car body, utilize be formed with the female threaded portion screwed togather with outer screw section and the resilient prong engaged with holding section lining by noncontacting switch via support installing in car body.

Claims (15)

1. a noncontacting switch, comprising:

Magnetic force detecting sensor;

Be configured with the terminal substrate of described magnetic force detecting sensor;

Be configured with the control member of magnet, described magnetic force detecting sensor detects described magnet;

Be combined with described terminal substrate, and described control member be held in the keeper that can slide relative to described magnetic force detecting sensor; And

By the switch housing that described keeper, the part of described control member and described terminal substrate that is held in this keeper are accommodated,

It is characterized in that,

Configure described magnet, to form two magnetic fields around the axle center of described control member across predetermined distance, and described magnetic force detecting sensor is configured on the center line of two magnetic field overlaps that described magnet is formed on the axis of described control member, and when the flux reversal position of the direction upset of the magnetic line of force that described magnetic force detecting sensor produces to the magnetic line of force sent from described magnet according to the mobility detect of described control member, output detection signal.

2. noncontacting switch as claimed in claim 1, is characterized in that,

Described magnet done circlewise and is configured around the axle center of described control member, and this magnet and described magnetic force detecting sensor being configured in coaxially.

3. noncontacting switch as claimed in claim 2, is characterized in that,

The service position of described control member is set in the position that described magnetic force detecting sensor is in the thickness direction central authorities of described magnet.

4. noncontacting switch as claimed in claim 1, is characterized in that,

Configure two described magnet around the axle center of described control member across predetermined distance, and described magnetic force detecting sensor is configured on the axle center of described control member.

5. noncontacting switch as claimed in claim 4, is characterized in that,

Described magnet is made bar-shaped.

6. the noncontacting switch according to any one of claim 1 to 5, is characterized in that,

Along described control member glide direction described control member and in described keeper square become guide portion, along described control member glide direction described control member and the opposing party in described keeper formed chimeric with described guide portion become slidable guiding fin.

7. the noncontacting switch according to any one of claim 1 to 5, is characterized in that,

Described terminal substrate is fixed on described keeper, spacer block is installed on this terminal substrate, described magnetic force detecting sensor is contained in this spacer block, thus this magnetic force detecting sensor is configured on described terminal substrate.

8. the noncontacting switch according to any one of claim 1 to 5, is characterized in that,

Described magnetic force detecting sensor is electrically connected with circuit substrate and is located at described terminal substrate, and, this magnetic force detecting sensor and described circuit substrate are configured in the enclosure space formed between described keeper and described terminal substrate.

9. the noncontacting switch according to any one of claim 1 to 5, is characterized in that,

The temporary fixed portion being used for described control member to be temporarily fixed on the service position of regulation is located at described keeper.

10. noncontacting switch as claimed in claim 9, is characterized in that,

The spring exerted a force towards initial position direction to described control member is set, the locking pawl that use can be out of shape towards the inner elastomeric of described keeper forms the temporary fixed portion of described keeper, making this locking pawl strain and under state outstanding in keeper, make the described control member that exerted a force by described spring and described locking pawl locking, described control member is temporarily fixed on the service position of regulation relative to described keeper.

11. noncontacting switches as claimed in claim 9, is characterized in that,

The terminal substrate being configured with described magnetic force detecting sensor is set, this terminal substrate and described keeper are arranged respectively and is used for this terminal substrate and described keeper to be bonded into the adjustment part, position that can adjust relative position, utilize this adjustment part, position to adjust the position relative to described terminal substrate of described keeper, adjust the detection position of the described magnetic force detecting sensor corresponding with the magnet being configured at described control member.

12. noncontacting switches according to any one of claim 1 to 5, is characterized in that,

Be provided with adjustment part, position and position fixing part, wherein, adjustment part, described position changes the relative position of described keeper and described terminal substrate to adjust the detection position of described magnetic force detecting sensor, described position fixing part, by the described keeper be bonded to each other and described terminal substrate are assembled into described switch housing, fixes the relative position of described magnet and described magnetic force detecting sensor.

13. noncontacting switches as claimed in claim 12, is characterized in that,

Adjustment part, described position is formed with the threaded portion making described keeper and described terminal substrate and screw togather by being formed at described keeper and described terminal substrate respectively, and described position fixing part is formed with the rotation stopping portion of the relative rotation of described terminal substrate in described switch housing to stop the described keeper be bonded to each other with described terminal substrate by being formed at described keeper respectively.

14. noncontacting switches as claimed in claim 13, is characterized in that,

Described position fixing part is chimeric towards the insertion in described switch housing with described terminal substrate by the described keeper be bonded to each other, and stops the relative rotation in described switch housing of described keeper and described terminal substrate.

15. noncontacting switches as claimed in claim 14, is characterized in that,

Use non-circular fitting portion to form the rotation stopping portion being formed at described keeper and described terminal substrate respectively, and the fitting portion inserting the described switch housing be fitted together to for this rotation stopping portion is also formed non-circular.