CN109192588A - Travel switch with multiple signals - Google Patents
Travel switch with multiple signals Download PDFInfo
- Publication number
- CN109192588A CN109192588A CN201811101766.3A CN201811101766A CN109192588A CN 109192588 A CN109192588 A CN 109192588A CN 201811101766 A CN201811101766 A CN 201811101766A CN 109192588 A CN109192588 A CN 109192588A
- Authority
- CN
- China
- Prior art keywords
- contact
- spring
- travel switch
- movable contact
- multiple signals
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
- H01H19/18—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
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- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of travel switches with multiple signals, including static contact (4) and movable contact spring, static contact (4) is mounted on wiring pin (9), even number support base (7) ring cloth is mounted on the contact ring that a cage is constituted on substrate (8), contact ring center is mandrel (12), the uniformly distributed circle movable contact spring in mandrel (12) outer surface, movable contact spring and static contact (4) form sliding contact pair, every two movable contact spring connects to form access, mandrel (12) is hollow, one end is sealed with promotion disk (13), inside installation spring (24), spring (24) both ends are separately connected substrate (8) and push disk (13).The present invention changes the arrangement form of contact system contact sets, increases the backup of contact group number, to improve control system functional reliability.
Description
Technical field
The present invention relates to a kind of travel switches.
Background technique
As the continuous upgrading that modern aerospace reliability control system requires improves, it is desirable that the output of travel switch has
There are multiple signals, so that state of flight of the control system to aircraft accurately identifies, provides judgement for signalman system
Foundation.As the travel switch for aerospace system signal, the direct decision systems of the success or failure of work execute the success or failure of task.Such as figure
Shown in 1, principle assumption diagram is contacted for traditional travel switch, using the symmetrical uniformly distributed contact chip 2 of cylindric movable contact 1 and 4
The mode of sliding contact simultaneously, the structure movable contact 1 and promotion column 3 are the linkage body rigidly fixed.When push column 3 respectively by
System apply pressure or reset thrust when, movable contact 1 generate movement and with 42 sliding contacts of contact chip, export 1 group of signal.
The tradition travel switch can only export 1 group of extension bullet or outlet signal under much compression stroke, there are control group numbers few, signal without
The defect of carrying out safety backup is unable to satisfy the demand after modern system upgrading to multiple signals output.
Summary of the invention
The technical problem to be solved by the present invention is being mentioned aiming at the problem that existing travel switch can only export signal all the way
A kind of travel switch for capableing of outputting multiplex signals simultaneously is supplied.
The technical scheme is that
A kind of travel switch with multiple signals, including static contact and movable contact spring, static contact are mounted on wiring pin, even number
Stationary contact loop cloth is installed on substrate the contact ring for constituting a cage, and contact ring center is mandrel, mandrel outer surface uniformly distributed one
Movable contact spring is enclosed, movable contact spring and static contact form sliding contact pair, and every two movable contact spring connects to form access, and mandrel is hollow, one end
It is lived with promotion disk seal, inside installation spring, both ends of the spring is separately connected substrate and pushes disk.
Mounting seat on substrate, pedestal coat static contact, and pedestal connects actuator, convoluted diaphragm, rush by convoluted diaphragm
Moving part and pedestal are combined through soldering and sealing composition with compressible and hermetic seal actuator；Installation pushes column in actuator, pushes
Column and promotion disk cooperation.
Substrate is mounted in fixed plate, and connection throws away cable in fixed plate, then the bonding wire end of cable will be thrown away by solder
It is welded to corresponding wiring pin, each wiring pin connects a quiet contact chip, shares 8 movable contact springs, the dynamic touching of every two face
Piece is one group, is connected by mounting ring；Insulating bushing is set between every two mounting ring, and insulating bushing is inner circular, foreign steamer
Exterior feature is the cyclic structure of regular polygon.
There are insulation sleeve, the fixing sleeve of insulating bushing connecting mandrel end outside central spindle, mounting ring and insulating bushing are sleeved on absolutely
Edge is put on.
Insulating bushing is divided into interior insulation set and two sections of external insulation sleeve, interior insulation set and fixing sleeve cooperation, external insulation sleeve and axis
The boss in core middle section cooperates, and mating surface is equipped with rotation stop key；Mounting ring and the mating surface of insulating bushing are equipped with rotation stop card slot.
Base end face installs guide sleeve, and guide sleeve is ring structure, edge of encircling for protection on the excircle of ring structure.
Static contact first bends to outside circumference and bends inwards again, and there is the curved-surface structure for contacting with movable contact spring in free end；It connects
Stitch is equipped with the bent outward trisection that supporting spring holds static contact.
Shield on guide sleeve air ring excircle is along cross section of inboard wall regular polygon, and that processes on each inner wall keeps away
Slot support base outer end is allowed to be equipped with rear cover, outer cover rear end is connected with rear cover, and actuator is installed in front end.
Beneficial effects of the present invention:
Travel switch of the invention increases the backup of contact group number by the arrangement form of change contact system contact sets, to improve
Control system functional reliability.A kind of contact system structure using octagon arrangement sliding contact is provided, using mutually absolutely
4 groups of movable contacts of edge form octagon contact assembly, slide working faces and corresponding two by two on the outside of movable contact
The connecting and disconnecting of control signal are realized in contact chip contact, and 4 road signal synchronous safeties export, and realize that the work of high-quality is special
Property.
Detailed description of the invention:
Fig. 1 is the travel switch structure schematic diagram of this hair invention.
Fig. 2 is the schematic diagram of existing structure.
Fig. 3 is that contact of the invention contacts principle assumption diagram.
Fig. 4 is the left view of contactor.
Fig. 5 is the main sectional view of contactor.
Fig. 6 is the right view of contactor.
Fig. 7 is that movable contact spring component assembles explosive view.
Fig. 8 is that movable contact spring component assembles three-dimensional main view.
Fig. 9 is dynamic contact system top view.
Figure 10 is dynamic contact system main sectional view.
Specific embodiment
Embodiment 1: this travel switch draws branch by quiet contact system, dynamic contact system, outer power delivery system and quotation marks
Support system composition, quiet contact system includes: static contact 4, supporting spring 5, solder 6, support base 7, substrate 8, wiring pin 9, fixinig plate 10
And fixture nut 11 forms；Dynamic contact system includes: mandrel 12, pushes disk 13, external insulation sleeve 14, movable contact spring, insulating bushing
16, mounting ring, interior insulation set 19 and fixing sleeve 20 form, and wherein movable contact spring is equipped with 2N, are 8 in the present embodiment, mutually
45 ° of interval is distributed on an octagon cylinder, and two parallel movable contact springs and mounting ring connect and compose movable contact component, due to
The position of 4 mounting rings is different, and there is also differences in height with the tie point of movable contact spring, respectively constitutes 4 movable contact spring components: dynamic touching
Point 18(1#), movable contact 17(2#), movable contact 17(3#) and movable contact 15(4#).Outer power delivery system includes: actuator
21, column 22, convoluted diaphragm 23, spring 24, guide sleeve 25 and pedestal 26 is pushed to form, wherein actuator 21, convoluted diaphragm 23
And pedestal 26 forms actuator combination, actuator combination is formed with quiet contact system, dynamic contact system and guide sleeve 25 again
Pushing mechanism；Signal draw support system include: insulation spacer 27, solder 6, throw away cable 28, silicon rubber 29, adhesive 30,
Fixed plate 31, fixing screws 32, outer cover 33 and rear cover 34 form.
Fig. 1 is the overall structure cross-sectional view of the present embodiment, convoluted diaphragm 23 and actuator 21 and pedestal 26 through soldering and sealing group
It is combined at compressible and hermetic seal actuator, 21 inner cavity of actuator is drum type brake, to push column 22 and mandrel 12 to mention
It is slidably supported for guiding；26 oral area of pedestal is step-like annular shape, limited support is provided for the substrate 8 of quiet contact system, the bottom of at
Hermetic seal melting welding is carried out with substrate 8 after 26 neckings of seat；Guide sleeve 25 is hollow type structure, and axial big end is designed as annular shape, is
Quiet contact system provides axial support, has shield edge on the excircle of annulus, and the inner wall for protecting edge is axially octagon opening, is
The octagon sliding action face of contact system provides guide support；Guide sleeve 25 is using the non-metallic material with self-lubricating property
Material processing convenient for guiding and reduces friction, improves sliding contact contact service life, axial to process 8 uniformly distributed escape groove, rule
It keeps away to assemble with contact chip 4 and interfere；First by the opening big end of guide sleeve 25 from 4 operative end surface of contact chip to 8 direction of substrate when assembling
It is packed into, makes big end side surface with the abutting of substrate 8 and 8 contact chips 1 are in corresponding escape groove, then will successively push column
22, move contact system, spring 24 from the open end of pedestal 26 be packed into, while make 24 both ends of spring respectively with substrate 8 and push
The positive stop lug boss of disk 13 cooperates limit, is finally packed into quiet contact system and is press-fitted, and carries out hermetic seal melting welding to press-fitting border；
As shown in the figure, conical surface soldering and sealing interface is designed in the axial middle part processing cable via hole of rear cover 34, tail end bottom, and when assembling will first get rid of
28 bonding wire end of cable penetrates cable via hole from 34 tail end of rear cover out, and insulation spacer 27 is attached on substrate 8 with realize solder joint with
The electric insulation of substrate, then the bonding wire end for throwing away cable 28 is welded on corresponding wiring pin 9 by solder 6, to weld
Line fills 803 silicon rubber 29 to prevent temperature stress impulse force, and then encapsulating stick 30 is fixed on silicon rubber 29 again；Pass through fixing screws
32 are fixed to fixed plate 31 in fixture nut 11, fix by the drawing anti-to the realization for throwing away cable 28 of fixed plate 31.Finally will
34 open end of rear cover carries out oral area necking after being packed into outer cover 33, and fixes to the melting welding of necking end.
Fig. 3 is the embodiment of the present invention travel switch structure schematic diagram.As shown in the figure, movable contact 18(1#), movable contact 17
(2#), movable contact 17(3#) and movable contact 15(4#) sliding contact surface circumferential by 45 ° of stepping angles to be sequentially arranged composition contour
Octagon, on quiet contact system 8 static contacts 4 one-to-one correspondence contact；Two static contacts 4 and dynamic touching that number is 1
18 composition 1# contact sets of point, two static contacts 4 and movable contact 17 that number is 2 form 2# contact sets, two stationary contacts that number is 3
Piece 4 and movable contact 17 form 3# contact sets, and two static contacts 4 and movable contact 15 that number is 4 form 4# contact sets, 4 road signals
Synchronism switching output but it is mutually isolated, it is non-interference,
Fig. 4-Fig. 6 is the quiet contact system main sectional view of the embodiment of the present invention one and left and right view.As shown in the figure, 8 wiring pins
9, which are uniformly fixed to substrate 8 by sintering, forms base combination, and the axial middle part design limit cylindrical boss of substrate 8 is spring 24
Installation support is provided, 4 fixture nuts 11 press fixed on substrate 8 and laser hardening；Static contact 4 and 5 postweldings of supporting spring exist
It is pressed onto wiring pin 9, and docks stitch 9 and press end using the soldering reinforcing of solder 6；The face width of 8 static contacts 4
Center composition contact circle, to guarantee to correspond to the pressure consistency that contact wipe contacts on all static contacts 4 and movable contact component；8
U-shaped opening support base 7 is packed between substrate 8 and supporting spring 5 from corresponding wiring pin 9, to be supported to supporting spring 5, is improved
4 rigidity of static contact；Limiting slot is processed in the middle part of 7 two sides of support base, it is corresponding with the positive stop lug boss of 10 two sides of fixinig plate design, solid
Rotation stop is cooperated by keyway after the loading of stator 10, fixinig plate 10 and substrate 8 pass through welded connecting.
Fig. 7 is the contact assembly assembly explosive view that the embodiment of the present invention one moves contact system.As shown in the figure, from left to right
Part be followed successively by movable contact 18, insulating bushing 16, movable contact 17, insulating bushing 16, movable contact 17, movable contact 15；Movable contact
18, movable contact 17 and movable contact 15 are the structure that connection ring both ends connect two parallel movable contact springs, and horizontal position is annulus
Shape structure is conducting position, and the vertical position in two sides is sliding contact working bank, and step lateral surface is sliding contact working face,
Sliding contact pair is formed with static contact 4；Inside is limit acting surface, corresponding with the outer profile octagon side of insulating bushing 16
Cooperation limit；Insulating bushing 16 is that inner circular, outer profile are positive octagonal cyclic structure, use process for un-metal material with
Electric insulation between realization adjacent contacts, and limit card slot is designed, prevent assembling late contact 17, movable contact 15 and movable contact 18
It circumferentially rotates.Limited step is designed on the rectangular step of movable contact 15, conjunction realization pair is matched with the rotation stop groove on external insulation sleeve 14
Contact assembly rotation stop.
Fig. 8 is the three-dimensional main view of contact assembly assembly that the embodiment of the present invention moves contact system.As shown in the figure, after assembling
8 sliding contact working faces are sequentially arranged in the octagon outer surface of insulating bushing 16 by 45 ° of stepping angles, same contact
Two sliding contact working faces are arranged symmetrically, and 8 sliding contact face heights are equal.
Fig. 9-Figure 10 is that a kind of travel switch of the embodiment of the present invention moves contact system main sectional view and top view.Institute in figure
Show, mandrel 12 is the telescoping structure of interior empty outer circle, has rotation stop key, provides installation space for spring 24 and disk 13 is pushed to provide
Support positioning；14 outer profile of external insulation sleeve is positive eight-sided formation, 8 equal sliding contact surfaces of outer profile size and contact assembly
The octagon size of composition is identical, and external insulation sleeve 14 designs the rotation stop groove of symmetric configuration close to the side of contact assembly, with touching
Rotation stop key cooperation on the movable contact 15 of point component, external insulation sleeve 14 use the process for un-metal material with self-lubricating property,
Convenient for being oriented to and reducing friction；External insulation sleeve 14, contact assembly, interior insulation set 19 and fixing sleeve 20 are successively packed into mandrel
12, so that two symmetrical rotation stop grooves of external insulation sleeve 14 is cooperated rotation stop with the rotation stop key of movable contact 15 and mandrel 12 respectively, and to core
12 oral area of axis expands riveting and realizes each component axial restraint.
Fig. 9 is that the embodiment of the present invention one moves contact system three-dimensional main view.As shown in the figure, it is positioned by rotation stop keyway,
The contour sliding contact working face of 8 of contact assembly octagon respectively with each corresponding flat of the octagon of external insulation sleeve 14
Slide handover plane is formed, 4 sliding process of static contact is by sliding position in sliding contact working face and positive eight side of external insulation sleeve
Signal switching is realized in switching between shape surface.
Claims (10)
1. a kind of travel switch with multiple signals, including static contact (4) and movable contact spring, it is characterised in that: static contact (4) peace
On wiring pin (9), even number static contact (4) ring cloth is mounted on the contact ring that a cage is constituted on substrate (8), contact ring
Center is mandrel (12), and movable contact spring is enclosed in mandrel (12) outer surface uniformly distributed one, and movable contact spring and static contact (4) form sliding contact pair,
Every two movable contact spring connects to form access, and mandrel (12) is hollow, and with pushing disk (13) to seal, spring (24) are installed in inside for one end,
Spring (24) both ends are separately connected substrate (8) and push disk (13).
2. according to claim 1 with the travel switch of multiple signals, it is characterised in that: mounting seat on substrate (8)
(26), pedestal (26) cladding static contact (4), pedestal (26) pass through convoluted diaphragm (23) connection actuator (21), convoluted diaphragm
(23), actuator (21) and pedestal (26) are combined through soldering and sealing composition with compressible and hermetic seal actuator；Actuator
(21) installation pushes column (22) in, pushes column (22) and pushes disk (13) cooperation.
3. according to claim 2 with the travel switch of multiple signals, it is characterised in that: substrate (8) is mounted on fixed plate
(31) on, connection is thrown away cable (28) in fixed plate (31), then is welded to the bonding wire end for throwing away cable (28) by solder (6)
Corresponding wiring pin (9), each wiring pin (9) connect a quiet contact chip (4).
4. according to claim 2 with the travel switch of multiple signals, it is characterised in that:
8 movable contact springs are shared, the movable contact spring of every two face is one group, is connected by mounting ring；It is set between every two mounting ring
It sets insulating bushing (16), insulating bushing (16) is inner circular, the cyclic structure that outer profile is regular polygon.
5. according to claim 4 with the travel switch of multiple signals, it is characterised in that: there is insulation sleeve outside central spindle (12),
The fixing sleeve (20) of insulating bushing connecting mandrel (12) end, mounting ring and insulating bushing (16) are sleeved on insulation sleeve.
6. according to claim 4 with the travel switch of multiple signals, it is characterised in that: insulating bushing is divided into interior insulation set
(19) and (14) two sections of external insulation sleeve, interior insulation set (19) and fixing sleeve (20) cooperation, in external insulation sleeve (14) and central spindle (12)
The boss cooperation of section, mating surface are equipped with rotation stop key；Mounting ring and the mating surface of insulating bushing (16) are equipped with rotation stop card slot.
7. according to claim 3 with the travel switch of multiple signals, it is characterised in that: pedestal (7) end face installation guiding
It covers (25), guide sleeve (25) is ring structure, edge of encircling for protection on the excircle of ring structure.
8. according to claim 7 with the travel switch of multiple signals, it is characterised in that: static contact (4) is first to outside circumference
Bending bends inwards again, and there is the curved-surface structure for contacting with movable contact spring in free end；Wiring pin (9) is equipped with supporting spring (5) and holds
The bent outward trisection of static contact (4).
9. according to claim 8 with the travel switch of multiple signals, it is characterised in that: guide sleeve (25) air ring outer circle
Shield on week is along cross section of inboard wall regular polygon, and the escape groove processed on each inner wall.
10. according to claim 7 with the travel switch of multiple signals, it is characterised in that: after support base (7) outer end is equipped with
It covers (34), actuator (21) are installed in outer cover (33) rear end and rear cover (34) connection, front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101766.3A CN109192588B (en) | 2018-09-20 | 2018-09-20 | Travel switch with multiple signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101766.3A CN109192588B (en) | 2018-09-20 | 2018-09-20 | Travel switch with multiple signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109192588A true CN109192588A (en) | 2019-01-11 |
| CN109192588B CN109192588B (en) | 2020-08-11 |
Family
ID=64909071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101766.3A Active CN109192588B (en) | 2018-09-20 | 2018-09-20 | Travel switch with multiple signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109192588B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571072A (en) * | 2019-08-23 | 2019-12-13 | 贵州航天电器股份有限公司 | Small travel switch with locking function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419874A (en) * | 2007-10-27 | 2009-04-29 | 贵州航天电器股份有限公司 | Sealed travel switch |
| CN203552996U (en) * | 2013-10-30 | 2014-04-16 | 东风汽车公司 | Self-locking key switch with multipath signal output |
| CN205680570U (en) * | 2016-06-17 | 2016-11-09 | 浙江道成汽车部件股份有限公司 | Travel switch |
-
2018
- 2018-09-20 CN CN201811101766.3A patent/CN109192588B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419874A (en) * | 2007-10-27 | 2009-04-29 | 贵州航天电器股份有限公司 | Sealed travel switch |
| CN203552996U (en) * | 2013-10-30 | 2014-04-16 | 东风汽车公司 | Self-locking key switch with multipath signal output |
| CN205680570U (en) * | 2016-06-17 | 2016-11-09 | 浙江道成汽车部件股份有限公司 | Travel switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571072A (en) * | 2019-08-23 | 2019-12-13 | 贵州航天电器股份有限公司 | Small travel switch with locking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109192588B (en) | 2020-08-11 |
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