CN1538471A - Detection switch - Google Patents

Detection switch Download PDF

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Publication number
CN1538471A
CN1538471A CNA2004100335923A CN200410033592A CN1538471A CN 1538471 A CN1538471 A CN 1538471A CN A2004100335923 A CNA2004100335923 A CN A2004100335923A CN 200410033592 A CN200410033592 A CN 200410033592A CN 1538471 A CN1538471 A CN 1538471A
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CN
China
Prior art keywords
mentioned
circuit board
printed circuit
pcb
resettlement section
Prior art date
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Granted
Application number
CNA2004100335923A
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Chinese (zh)
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CN1271655C (en
Inventor
芳贺修
川濑达章
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Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of CN1538471A publication Critical patent/CN1538471A/en
Application granted granted Critical
Publication of CN1271655C publication Critical patent/CN1271655C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Hall/Mr Elements (AREA)

Abstract

A low cost and small volume switch of printed circuit board with accurate examination and free disposition is provided. The detection switch of this invention is comprising: shell (1), which consists of insulation material and container (1c, 1d); printed circuit board (6), which is settled in the container (1c) and installed in the shell (1) above mentioned; magnetic transform device (5), which connects with the electric conductive pattern designed on the printed circuit board; the magnetic transform device (5), which is settled in the container (1c) and installed in the shell where other parts have already fixed inside the shell. Comparing to the prior art the error of installation from the magnetic transducer device becomes very small. The installation position of the magnetic transducer device (5) is accurate. Therefore, it can provide a switch with accurate detection.

Description

Sense switch
Technical field
The present invention relates to be applicable to the sense switch of jam cutout (バ Star Network Le ス イ Star チ) switch of mobile object such as automobile.
Background technology
The description of drawings of existing sense switch is as follows.Figure 19 is the vertical view of existing sense switch, and Figure 20 is the front view of existing sense switch.
Below with reference to the accompanying drawings 19 and 20, describe the structure of existing sense switch in detail.The box-shaped shell 51 that is made of the forming synthetic resin product has: on every side by the 1st big resettlement section 51b of the 51a of wall portion encirclement and the 2nd little resettlement section 51c that is surrounded by the 51a of wall portion.
Mobile slide unit 52 has: arm 52a and combine, be equipped with the sliding part 52b of magnet 53 with this arm 52a, this slide unit 52, be positioned at sliding part 52b under the state of the 1st resettlement section 51b, arm 52a is outstanding from the place ahead of the 51a of wall portion, and slide unit 52 is mounted to and overcomes the state that the elasticity that is placed in the helical spring 54 in the 1st resettlement section 51b can move.
Printed circuit board (PCB) 55 has conductive pattern (not having diagram), the terminal 56a of welded and installed IC Hall element 56 on this conductive pattern.
And this printed circuit board (PCB) 55 arranges and is installed in the 1st resettlement section 51b that IC Hall element 56 can be mutually opposed with electromagnet 53 simultaneously.
Draw and have wire rod (do not have diagram) with cable 57 and be insulated the structure that the covering part 57a of material covers, cable 57 is welded on the conductive pattern of printed circuit board (PCB) 55, simultaneously, cable 57 by being arranged on the straight notch part 51d on the 51a of wall portion, is drawn out to the outside of shell 51 from the 2nd resettlement section 51c.
Existing sense switch with this structure, jam (do not have diagram) from non-blocking when blocking moves, the elastic force ground that arm 52a and the sliding part 52b that magnet 53 is installed overcome helical spring 54 moves, so, produce electromotive force owing to moving of magnet 53 makes IC Hall element 56, detect the blocking of jam (バ Star Network Le).
And, jam from blocking when non-blocking moves, the sliding part 52b of arm 52a and installation electromagnet 53 is pushed and moves by helical spring 54, so, because moving of magnet 53, make IC Hall element 56 produce electromotive force, detect the non-blocking (for example referring to patent documentation 1) of jam.
But, this existing sense switch, IC Hall element 56 is welded on the printed circuit board (PCB) 55, printed circuit board (PCB) 55 is disposed in the 1st resettlement section 51b of shell 51 simultaneously, so IC Hall element 56 is bigger in alignment error on the printed circuit board (PCB) 55 and the alignment error of printed circuit board (PCB) 55 on shell 51, the accumulated error of 53 pairs of IC Hall elements 56 of magnet is bigger, IC Hall element 56 the big error of generation on the position is set, so, can not accurately detect.
And because IC Hall element 56 is installed on printed circuit board (PCB) 55, so the position of IC Hall element 56 and electromagnet 53 is determined that the position of printed circuit board (PCB) 55 also is defined, the layout of printed circuit board (PCB) 55 does not have the degree of freedom.
Moreover because IC Hall element 56 is installed on printed circuit board (PCB) 55, so printed circuit board (PCB) 55 increases, cost improves, and simultaneously, the space of laying of printed circuit board (PCB) 55 increases, and whole sense switch volume increases.
And,,, can not prevent moist and dust etc. so shell 51 inside can not encapsulate with potting resin owing in shell 51, lay movable slide unit 52 and magnet 53 and helical spring 54.
Patent documentation 1 spy opens the 2001-157603 communique
Existing sense switch, because IC Hall element 56 is welded on the printed circuit board (PCB) 55, printed circuit board (PCB) 55 is arranged in the resettlement section 51b of shell 51 simultaneously, so, the problem that exists is: the alignment error of IC Hall element 56 on printed circuit board (PCB) 55 is big, and the alignment error of printed circuit board (PCB) 55 on shell 51 is big, and be big thereby the accumulated error of IC Hall element 56 relative magnet 53 becomes, the position that is provided with of IC Hall element 56 produces big error, therefore can not detect exactly.
And, because IC Hall element 56 is installed on printed circuit board (PCB) 55, so the position of IC Hall element 56 and electromagnet 53 is determined that so the position of printed circuit board (PCB) 55 also is defined, the layout of printed circuit board (PCB) 55 does not have the degree of freedom.
Moreover because IC Hall element 56 is installed on printed circuit board (PCB) 55, so the problem of existence is: printed circuit board (PCB) 55 increases, and cost improves, and the space of laying of printed circuit board (PCB) 55 increases simultaneously, and the overall volume of sense switch increases.
Summary of the invention
Therefore, the object of the present invention is to provide and can accurately detect, on the layout of printed circuit board (PCB) the degree of freedom is arranged simultaneously, cost is low, the sense switch that volume is little.
In order to address the above problem, the 1st technical scheme is: sense switch has: the shell that is constituted, had the resettlement section by insulating material, under the state in being placed to above-mentioned resettlement section, be installed in the printed circuit board (PCB) in the above-mentioned shell, and the magnetic variation that is connected with conductive pattern on being arranged on this printed circuit board (PCB) changes element, above-mentioned magnetic variation changes element and is placed in the above-mentioned resettlement section, is installed in the above-mentioned shell under the state that has been positioned in above-mentioned shell.
And the 2nd technical scheme is: above-mentioned magnetic variation changes element and is installed in the position of leaving above-mentioned printed circuit board (PCB) top.
Moreover the 3rd technical scheme is: have be used to keep above-mentioned magnetic variation change element, by the holding member that insulating material constitutes, maintain above-mentioned magnetic variation and change under the state of above-mentioned holding member in being positioned in above-mentioned shell of element and be installed in the above-mentioned shell.
And, the 4th technical scheme is: above-mentioned shell has a plurality of projectioies that are used to install above-mentioned printed circuit board (PCB) and above-mentioned holding member, above-mentioned projection is inserted in the hole that is arranged on above-mentioned printed circuit board (PCB) and the above-mentioned holding member, leading section to above-mentioned projection carries out hot riveting, thereby above-mentioned printed circuit board (PCB) and above-mentioned holding member are installed in the above-mentioned shell.
And the 5th technical scheme is: the conductor that is made of metal material is buried underground to be installed in the above-mentioned holding member, and the terminal that above-mentioned magnetic variation changes element is connected with above-mentioned conductor, and above-mentioned conductor is connected with above-mentioned conductive pattern simultaneously.
Moreover, the 6th technical scheme is: above-mentioned resettlement section has the 1st resettlement section and 2nd resettlement section narrower and small than the 1st resettlement section, in above-mentioned the 1st resettlement section, lay above-mentioned printed circuit board (PCB), in above-mentioned the 2nd resettlement section, lay above-mentioned magnetic variation simultaneously and change element and the above-mentioned magnetic variation that is arranged in the above-mentioned holding member is changed the maintaining part that element keeps.
And, the 7th technical scheme is: the above-mentioned resettlement section of above-mentioned shell is by diapire and surround this diapire peripheral part and the sidewall that is provided with forms, the potting resin that is made of insulating material is set in above-mentioned resettlement section, and the outer surface that utilizes above-mentioned potting resin above-mentioned printed circuit board (PCB), above-mentioned magnetic variation to change element and above-mentioned holding member encapsulates.
Moreover the 8th technical scheme is: have the capacitor that the noise reduction sound that is connected with above-mentioned conductive pattern is used, and the outer surface of this capacitor encapsulates with above-mentioned potting resin.
Moreover the 9th technical scheme is: change blocking and the non-blocking that element detects jam by above-mentioned magnetic variation.
Description of drawings
Fig. 1 is the vertical view of sense switch of the present invention.
Fig. 2 is the front view of sense switch of the present invention.
Fig. 3 is the upward view of sense switch of the present invention.
Fig. 4 is the end view of sense switch of the present invention.
Fig. 5 is the vertical view that removes the state behind the potting resin that expression relates to sense switch of the present invention.
Fig. 6 is the major part cutaway view that removes the state behind the potting resin that expression relates to sense switch of the present invention.
Fig. 7 is the vertical view that expression relates to the shell of sense switch of the present invention.
Fig. 8 is the front view that expression relates to the shell of sense switch of the present invention.
Fig. 9 is the upward view that expression relates to the shell of sense switch of the present invention.
Figure 10 is the end view that expression relates to the shell of sense switch of the present invention.
Figure 11 is the major part cutaway view that expression relates to the shell of sense switch of the present invention.
Figure 12 is the vertical view that expression relates to the holding member of sense switch of the present invention.
Figure 13 is the front view that expression relates to the holding member of sense switch of the present invention.
Figure 14 is the upward view that expression relates to the holding member of sense switch of the present invention.
Figure 15 is the end view that expression relates to the holding member of sense switch of the present invention.
Figure 16 is that expression relates to the holding member of sense switch of the present invention and the front view that magnetic variation changes the combination of elements state.
Figure 17 is that expression relates to the holding member of sense switch of the present invention and the upward view that magnetic variation changes the combination of elements state.
Figure 18 is the vertical view that expression relates to the printed circuit board (PCB) of sense switch of the present invention.
Figure 19 is the vertical view of existing sense switch.
Figure 20 is the front view of existing sense switch.
Embodiment
The accompanying drawing of sense switch of the present invention below is described.Fig. 1 is the vertical view of sense switch of the present invention.Fig. 2 is the front view of sense switch of the present invention.Fig. 3 is the upward view of sense switch of the present invention.Fig. 4 is the end view of sense switch of the present invention.Fig. 5 is the vertical view that removes the state behind the potting resin that expression relates to sense switch of the present invention.Fig. 6 is the major part cutaway view that removes the state behind the potting resin that expression relates to sense switch of the present invention.Fig. 7 is the vertical view that expression relates to the shell of sense switch of the present invention.Fig. 8 is the front view that expression relates to the shell of sense switch of the present invention.Fig. 9 is the upward view that expression relates to the shell of sense switch of the present invention.Figure 10 is the end view that expression relates to the shell of sense switch of the present invention.Figure 11 is the major part cutaway view that expression relates to the shell of sense switch of the present invention.Figure 12 is the vertical view that expression relates to the holding member of sense switch of the present invention.Figure 13 is the front view that expression relates to the holding member of sense switch of the present invention.Figure 14 is the upward view that expression relates to the holding member of sense switch of the present invention.Figure 15 is the end view that expression relates to the holding member of sense switch of the present invention.Figure 16 is that expression relates to the holding member of sense switch of the present invention and the front view that magnetic variation changes the combination of elements state.Figure 17 is that expression relates to the holding member of sense switch of the present invention and the upward view that magnetic variation changes the combination of elements state.Figure 18 is the vertical view that expression relates to the printed circuit board (PCB) of sense switch of the present invention.
Following according to Fig. 1~Figure 18, describe the structure of sense switch of the present invention in detail.
The box-shaped casing 1 that constitutes by the formed products of synthetic resin, especially as Fig. 7~shown in Figure 11, it has: flat diapire 1a, be arranged in the whole peripheral of this diapire 1a sidewall 1b, surround and large-area the 1st resettlement section 1c that forms and by sidewall 1b and diapire 1a encirclement and form by this sidewall 1b and diapire 1a, be arranged to the 2nd resettlement section 1d of the small size that is connected with the 1st resettlement section 1c.
And shell 1 has: be arranged on the 1st 1f of pedestal portion on the peripheral part that is arranged on the 1e of this of the tube 1e of portion cylindraceous, dispersion of the central portion of the 1st resettlement section 1c, go up outstanding installation with protruding 1g, the protruding 1j that is arranged on the 2nd 1h of pedestal portion in the 2nd resettlement section 1d and goes up outstanding location and installation usefulness from the 2nd 1h of pedestal portion from the 1st 1f of pedestal portion.
Moreover, shell 1 also has: a plurality of hole 1k, the end that are arranged on the sidewall 1b of the 1st resettlement section 1c are connected with hole 1k, the other end is opening-wide state, the groove 1m that width dimensions is littler than the width dimensions of hole 1k is come and the separated zoning of the 1st resettlement section 1c chamber 1n, the depressed part 1p in the outside that is arranged on the 2nd resettlement section 1d and the guide part 1q that is arranged to state that the top of this depressed part 1p is covered by sidewall 1b under the state that opens wide on one side with hole 1k is adjacent.
And, zoning chamber 1n is made of base plate 1r that extends from sidewall 1b and the sidewall 1s that is arranged to surrounding shape around this base plate 1r, simultaneously, with the perpendicular locational side plate 1s of sidewall 1b on have: the notch part 1t of コ font and the top that is positioned at the bottom of notch part 1t, to the side-prominent a pair of protuberance 1u of notch part 1t.
The holding member 2 that is made of synthetic resin formed product especially has as Figure 12~shown in Figure 17: longilineal base portion 2a, be arranged on being also used as location and the maintaining part 2b that keeps, being arranged on the claw 2c on the end of this maintaining part 2b and 2 hole 2d that are arranged to the above-below direction break-through on base portion 2a of concavity of the face side of base portion 2a.
And, in this holding member 2, bury underground 2 conductors 3,4 that are made of metal material have been installed, be arranged on the portion of terminal 3a with hole, 4a on the end of conductor 3,4, be arranged on the bottom of maintaining part 2b, and the portion of terminal 3b, the 4b that are arranged on the other end are outstanding upward from the end of base portion 2a.
This holding member 2 is inserted into protruding 1j in the 2d of hole, and holding member 2 is located on shell 1, simultaneously, base portion 2a is contained on the 2nd 1h of pedestal portion, and the leading section of protruding 1j is carried out hot riveting, is installed on the shell 1 with this.
And when holding member 2 was installed, maintaining part 2b arranged that towards depressed part 1p the end of base portion 2a is positioned at the 1st resettlement section 1c simultaneously, and portion of terminal 3b, 4b are in outstanding upward state.
The magnetic variation that is made of IC Hall element etc. changes element 5, especially as Figure 16, shown in Figure 17, have: the main part 5a of Hall element and 2 terminal 5b that give prominence to from main part 5a are equipped with in inside, this magnetic variation changes element 5, main part 5a by folding and unfolding, remain under the state in the recess of maintaining part 2b, 2c installs with claw.
That is to say that magnetic variation changes element 5 and is maintained under the state by holding member 2 location, simultaneously, crooked terminal 5b is inserted into respectively in the hole of portion of terminal 3a, 4a of conductor 3,4, is connected on the conductor 3,4 by welding.
And the maintaining part 2b that magnetic variation changes element 5 and keeps this magnetic variation to change element 5 is positioned at the 2nd resettlement section 1d, and the front of main part 5a is in the state that overlaps mutually or be close with the sidewall 1b of depressed part 1p side simultaneously.
Printed circuit board (PCB) 6 has especially as shown in figure 18: be arranged on the circle of central portion macropore 6a, be arranged on recess 6b and a plurality of aperture 6c on the peripheral part of this hole 6a.
And, on this printed circuit board (PCB) 6, conductive pattern 7 is set, simultaneously, around aperture 6c, form the 7a of contact portion (ラ Application De portion); And, on the position beyond the aperture 6c, also form 2 7b of contact portion.
And the conductive pattern 7 except the 7a of this contact portion, the 7b and be in the surface of the printed circuit board (PCB) 6 that exposes state forms resist film (the hatching part of Figure 18).
Article 2, cable 8 have lead 8a respectively and coat this lead 8a, by the cladding part 8b that the flexibility insulating material constitutes, this cable 8, lead 8a are welded on the 7b of contact portion, are connected on the conductive pattern 7.
And, the capacitor q of welding noise reduction sound usefulness on the 7a of contact portion of conductive pattern 7.
Moreover this printed circuit board (PCB) 6 is inserted into the 1e of tube portion in the 6a of hole, simultaneously, protruding 1g is inserted in the recess 6b, and printed circuit board (PCB) 6 is put on the 1st 1f of pedestal portion, and the leading section of protruding 1g is carried out hot riveting, is installed in the shell 1 with this.
So, printed circuit board (PCB) 6 is arranged in the 1st resettlement section 1c, insert simultaneously portion of terminal 3b, 4b in the aperture 6c of printed circuit board (PCB) 6, if this portion of terminal 3b, 4b are welded on the 7a of contact portion, then magnetic variation changes element 5 and is connected with conductive pattern 7 by conductor 3,4.
At this moment, do not exist magnetic variation to change element 5 on the top of printed circuit board (PCB) 6, magnetic variation changes element 5 and is in the state that leaves printed circuit board (PCB) 6.
And 2 cables 8 pass the groove 1m that is arranged on the sidewall 1b at cladding part 8b, are pressed under the state that is supported in the circular port 1k, are drawn out to outside the 1st resettlement section 1c.
At this moment, because the width dimensions of groove 1m is less than the width dimensions of hole 1k, so cable 8 is not easy to pull out from the k of hole, is in by the state of sidewall 1b strong backing.
And, be drawn out to the outer cable 8 of the 1st resettlement section 1c move to the adjacent zoning chamber 1n of the 1st resettlement section 1c in, be drawn out to outside the 1n of zoning chamber by notch part 1t under the state that in the 1n of this zoning chamber, roughly is bent to a right angle.
At this moment, be positioned at the top of 2 cables 8 of notch part 1t, 1u fastens with protuberance, prevents to extract from notch part 1t.
So the state that utilizes protuberance 1u to make cable 8 keep being bent is drawn out to outside the 1n of zoning chamber.
The insulating resin that is made of insulating material such as polyurethane resins is filled in whole the 1st, the 2nd resettlement section 1c, the 1d, form potting resin 10 (the hatching part of Fig. 1), the outer surface that utilizes this potting resin 10 holding member 2, magnetic variation to change element 5, printed circuit board (PCB) 6 and capacitor 9 encapsulates, and prevents to adhere to above it moisture and dust etc.
And, in the circular port 1k that cable 8 is supported, in the hole 1k beyond the groove 1m position, be in state with cladding part 8b fluid-tight engagement, so, sealing station from diapire 1a in the 1k of hole improves, therefore, when insulating resin was filled in the 1st, the 2nd resettlement section 1c, the 1d, the insulating resin that spills from the 1k of hole seldom.
And,, also be that spilling of insulating resin do not deface in the zoning chamber 1n that flow on its adjacent position even from the 1k of hole, for example spill insulating resin.
Sense switch with this structure is installed on the mobile object in the position of the 1e of tube portion, at this no illustrated movable member that magnet is installed, utilizes jam to move, and can be moved by the guide part 1q guiding of shell 1 simultaneously.
And, when jam when non-blocking moves to blocking, movable member is moved by guide part 1q guiding, magnet changes element 5 near magnetic variation in depressed part 1p, change the blocking that element 5 detects jam by magnetic variation.
Moreover, jam from blocking when non-blocking moves, movable member is moved by guide part 1q guiding, electromagnet changes element (magnetic mood conversion sub-prime) 5 away from magnetic variation, changes the non-blocking that element 5 detects jam by magnetic variation.
And, illustrated that in this embodiment magnetic variation changes element 5 and is installed in situation on the shell 1 by holding member 2, directly be positioned on the shell 1 and install but also can make magnetic variation change element 5.
And magnetic variation changes element 5 and also can directly be connected with conductive pattern 6, and also can utilize connecting line beyond the conductor 3,4 that is embedded in the holding member 2 etc. to connect.
The effect of invention
Sense switch of the present invention, have: make and have the printed circuit board (PCB) that is mounted under the shell of resettlement section, the state in being placed to the resettlement section in the enclosure and the magnetic variation that is connected with conductive pattern on being arranged on this printed circuit board (PCB) changes element by insulating material, magnetic variation changes element and is placed in the resettlement section, is installed in the shell under Ding Wei the state in the enclosure.
Like this, when magnetic variation changes when being installed in the shell under the state that element locatees in the enclosure, and compare in the past, it is minimum that magnetic variation changes the alignment error of element, magnetic variation change element that the position is set is accurate, can provide and detect sense switch accurately.
And magnetic variation changes element and can arrange leaving under the state of printed circuit board (PCB), so magnetic variation changes element and can freely arrange, printed circuit board (PCB) also can be arranged in freely on the position simultaneously, and magnetic variation changes the degree of freedom that is furnished with of element and printed circuit board (PCB).
Moreover magnetic variation changes element owing to be installed on the position of leaving printed circuit board (PCB) top, thus with compare in the past, can reduce the volume of printed circuit board (PCB), reduce cost, also can reduce the space of laying of printed circuit board (PCB) simultaneously, small-sized sense switch can be provided.
And, be used to keep magnetic variation to change the holding member that constitutes by insulating material of element owing to have, magnetic variation changed under the state that holding member that element keeps locatees in the enclosure be installed in the shell, so it is simple that magnetic variation changes the installation exercise of element in shell, the alignment error that the while magnetic variation changes element becomes minimum, magnetic variation change element that the position is set is accurate, the sense switch that can accurately detect can be provided.
Above-mentioned shell has a plurality of projectioies that are used to install above-mentioned printed circuit board (PCB) and above-mentioned holding member, above-mentioned projection is inserted in the hole that is arranged on above-mentioned printed circuit board (PCB) and the holding member, leading section to above-mentioned projection carries out hot riveting, and above-mentioned printed circuit board (PCB) and holding member are installed in the above-mentioned shell.So the installation exercise of printed circuit board (PCB) and holding member is simple, the production efficiency height, cost is low.
And, because being buried underground, the conductor that is made of metal material is installed in the above-mentioned holding member, and the terminal that above-mentioned magnetic variation changes element is connected with above-mentioned conductor, and above-mentioned conductor is connected with above-mentioned conductive pattern simultaneously.So the wiring operation is good, the production efficiency height, cost is low.
Moreover, because above-mentioned resettlement section has the 2nd narrow and small resettlement section of the 1st resettlement section and Bi Di 1 resettlement section, in above-mentioned the 1st resettlement section, lay above-mentioned printed circuit board (PCB), in above-mentioned the 2nd resettlement section, lay above-mentioned magnetic variation simultaneously and change element and the above-mentioned magnetic variation that is arranged in the above-mentioned holding member is changed the maintaining part that element keeps.So the volume of resettlement section can reduce, by the 2nd little resettlement section is set, can form the depressed part that magnet is moved expeditiously simultaneously.
And, because the resettlement section of above-mentioned shell is by diapire and be arranged in the sidewall of this diapire peripheral and form, the potting resin that is made of insulating material is set in above-mentioned resettlement section, and the outer surface that utilizes potting resin above-mentioned printed circuit board (PCB), above-mentioned magnetic variation to change element and above-mentioned holding member encapsulates.So portion forms the state of only laying the parts that are fixed in the enclosure, the outer surface that utilizes potting resin holding member, magnetic variation to change element and printed circuit board (PCB) encapsulates, and can prevent to adhere on it moisture and dust etc.
Moreover because have the capacitor that the noise reduction sound that is connected with above-mentioned conductive pattern is used, the outer surface of this capacitor encapsulates with above-mentioned potting resin.So noise is little, and capacitor can prevent to enclose moisture and dust etc.
Moreover, because change blocking and the non-blocking that element detects jam by above-mentioned magnetic variation.So, especially detect accurately, and magnetic variation changes on the layout of element and printed circuit board (PCB) the degree of freedom arranged, the sense switch that is applicable to mobile object can be provided, this mobile object needs can corresponding various forms.

Claims (9)

1, a kind of sense switch, it is characterized in that having: the shell that constitutes, has the resettlement section by insulating material, under the state in being placed to above-mentioned resettlement section, be installed in the printed circuit board (PCB) in the above-mentioned shell, and the magnetic variation that is connected with conductive pattern on being arranged on this printed circuit board (PCB) changes element, above-mentioned magnetic variation changes element and is placed in the above-mentioned resettlement section, is installed in the above-mentioned shell under the state that has been positioned in above-mentioned shell.
2, sense switch as claimed in claim 1 is characterized in that: above-mentioned magnetic variation changes element and is installed in the position of leaving above-mentioned printed circuit board (PCB) top.
3, sense switch as claimed in claim 1 or 2, it is characterized in that: have be used to keep above-mentioned magnetic variation change element, by the holding member that insulating material constitutes, maintain above-mentioned magnetic variation and change under the state of above-mentioned holding member in being positioned in above-mentioned shell of element and be installed in the above-mentioned shell.
4, sense switch as claimed in claim 3, it is characterized in that: above-mentioned shell has a plurality of projectioies that are used to install above-mentioned printed circuit board (PCB) and above-mentioned holding member, above-mentioned projection is inserted in the hole that is arranged on above-mentioned printed circuit board (PCB) and the above-mentioned holding member, leading section to above-mentioned projection carries out hot riveting, thereby above-mentioned printed circuit board (PCB) and above-mentioned holding member are installed in the above-mentioned shell.
5, sense switch as claimed in claim 3 is characterized in that: the conductor that is made of metal material is buried underground to be installed in the above-mentioned holding member, and the terminal that above-mentioned magnetic variation changes element is connected with above-mentioned conductor, and above-mentioned conductor is connected with above-mentioned conductive pattern simultaneously.
6, sense switch as claimed in claim 3, it is characterized in that: above-mentioned resettlement section has the 1st resettlement section and 2nd resettlement section narrower and small than the 1st resettlement section, in above-mentioned the 1st resettlement section, lay above-mentioned printed circuit board (PCB), in above-mentioned the 2nd resettlement section, lay above-mentioned magnetic variation simultaneously and change element and the above-mentioned magnetic variation that is arranged in the above-mentioned holding member is changed the maintaining part that element keeps.
7, sense switch as claimed in claim 3, it is characterized in that: the above-mentioned resettlement section of above-mentioned shell is by diapire and surround this diapire peripheral part and the sidewall that is provided with forms, the potting resin that is made of insulating material is set in above-mentioned resettlement section, and the outer surface that utilizes above-mentioned potting resin above-mentioned printed circuit board (PCB), above-mentioned magnetic variation to change element and above-mentioned holding member encapsulates.
8, sense switch as claimed in claim 7 is characterized in that: have the capacitor that the noise reduction sound that is connected with above-mentioned conductive pattern is used, and the outer surface of this capacitor encapsulates with above-mentioned potting resin.
9, sense switch as claimed in claim 3 is characterized in that: change blocking and the non-blocking that element detects jam by above-mentioned magnetic variation.
CN 200410033592 2003-04-15 2004-04-07 Detection switch Expired - Fee Related CN1271655C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003110709A JP2004319220A (en) 2003-04-15 2003-04-15 Detection switch
JP2003110709 2003-04-15

Publications (2)

Publication Number Publication Date
CN1538471A true CN1538471A (en) 2004-10-20
CN1271655C CN1271655C (en) 2006-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410033592 Expired - Fee Related CN1271655C (en) 2003-04-15 2004-04-07 Detection switch

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JP (1) JP2004319220A (en)
CN (1) CN1271655C (en)
TW (1) TWI233132B (en)

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JP4534584B2 (en) * 2004-05-10 2010-09-01 ノーリツ鋼機株式会社 Print order acceptance device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107153415A (en) * 2017-07-21 2017-09-12 连云港职业技术学院 The detection means and detection method of a kind of electric-control system

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