CN108550497A - A kind of memorial alloy and centrifugation constrain multi-channel switch - Google Patents
A kind of memorial alloy and centrifugation constrain multi-channel switch Download PDFInfo
- Publication number
- CN108550497A CN108550497A CN201810558054.8A CN201810558054A CN108550497A CN 108550497 A CN108550497 A CN 108550497A CN 201810558054 A CN201810558054 A CN 201810558054A CN 108550497 A CN108550497 A CN 108550497A
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- China
- Prior art keywords
- centrifugation
- spring
- switch
- memorial alloy
- power connecting
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- 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
- H01H35/00—Switches operated by change of a physical condition
- H01H35/006—Switches operated by mechanical overload condition, e.g. transmitted force or torque becoming too high
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/323—Thermally-sensitive members making use of shape memory materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention discloses a kind of memorial alloys and centrifugation to constrain multi-channel switch, belongs to switching technique field.Including：Connect electric switch, memorial alloy pin removal, drive rod, centrifugal-block, centrifugation spring, driving spring, ontology, steel ball, pressing plate, pressure spiral shell and axis pin.Centrifugal-block and centrifugation spring constitute centrifugation constraint mechanism.Usually, constraint mechanism and memorial alloy pin removal are centrifuged to constrain in drive rod far from the position for connecing electric switch, connects electric switch and is off.When memorial alloy pin removal energization action, and centrifugal-block experiences centrifugation overload and overcomes the drag of centrifugation spring when moving out, steel ball releases the locking to drive rod, drive spring that drive rod is pushed to squeeze power connecting sheet, make two contacts of power connecting sheet corresponding thereto, connect electric switch becomes conducting state from disconnecting.The present invention has the advantages that simple and compact for structure, sensitive, reliable operation of startup, of low cost.
Description
Technical field
The present invention relates to switching technique fields, and in particular to a kind of memorial alloy and centrifugation constrain multi-channel switch.
Background technology
With the development of vehicle technology, the function of aircraft becomes stronger and stronger, and flight control also becomes
It must become increasingly complex, in the course of work of aircraft, often occur when aircraft flight is aerial to height, on aircraft
Certain equipment can just start, when ground, certain equipment of aircraft be do not allow start.For example, one kind carries
The unmanned plane of solar energy sailboard just allows solar energy sailboard to be unfolded only when unmanned plane during flying is aerial to height, and on ground
When, do not allow the solar energy sailboard of unmanned plane to be unfolded.At this time there is an urgent need to give unmanned plane one signal, indicate unmanned plane too
When positive energy windsurfing is unfolded.
Particularly with being mounted with for the aircraft of weapon system, for carry weapon system security requirement compared with
Height does not allow to malfunction.
Traditional way is typically the control system of a set of complexity of installation in aircraft, when aircraft flight is to high-altitude,
Control system sends out instruction, then goes to realize by executing agency.
Aircraft has many environmental resources that can utilize in flight course.The gas generated such as aircraft high-speed flight
Dynamic thermal environment, inertia overload environment and centrifugation overload environment.
Invention content
For the demand of the prior art, the purpose of the present invention is to provide a kind of memorial alloys and centrifugation constraint multichannel to open
It closes, is started using flight control and centrifugation overload environment, realize that control switches on-off.The present invention has structure letter
It is single compact, start sensitive, reliable operation, it is of low cost the advantages that.
To achieve the above object, the present invention adopts the following technical scheme that, a kind of memorial alloy and centrifugation constraint multichannel are opened
It closes, which is characterized in that including：Connect electric switch, memorial alloy pin removal, drive rod, centrifugal-block, centrifugation spring, driving spring, ontology,
Steel ball, pressing plate, pressure spiral shell and axis pin；
The electric switch that connects is made of power connecting sheet, contact, switch base, switch body and screw, and switch body is a step-like circle
There is circular hole, circular hole surrounding to be uniform-distribution with several square grooves for cylinder, inside, have gap between circular hole and square groove so that circular hole
It is mutually communicated between square groove, each switch base, two contacts and a power connecting sheet constitute switch all the way, are placed in switch body
Square groove in, wherein power connecting sheet be thickness 0.2mm~0.5mm beryllium bronze band bending cut, power connecting sheet upper end be plane
And middle part has aperture, and power connecting sheet is screwed on switch base by the aperture, power connecting sheet side is string configuration,
It is 0.3mm~0.5mm that the middle part of the string configuration, which has arc-shaped convex, bulge size, which is cantilever beam
Shape structure, switch base are a nonmetallic electrically non-conductive material, and side tool is there are two aperture, and two contacts are respectively placed in aperture, mistake
Cooperation of being full of is fixed, and one end of contact is bulb shape, and the other end is cylinder, cylinder tail portion connecting wire, switch base side tool
Fluted and raised, the string configuration of power connecting sheet side is placed in the groove, between having between power connecting sheet and two contacts
Gap；
The memorial alloy pin removal is by axis pin, spring, pin removal pressure spiral shell, shell, marmem sleeve and conducting wire
It constitutes, usually marmem sleeve limits axis pin, spring and axis pin is limited in original state, spring is in pressure
Contracting state, after marmem sleeve, which is powered, to be heated, marmem sleeve temperature distortion is outside along internal diameter direction
Diameter is expanded, and the limitation to axis pin is released, and the spring driving bearing pin in compressive state moves, and reaches outside memorial alloy pin removal
The axis pin in face pulls out back；
The drive rod is a stepped cylindrical body, is made of big cylinder and small column, has on the circumference of big cylinder one end
One circle trapezoidal groove, the angle of lower inclined plane composition is 90 °~150 ° on the trapezoidal groove, which is embedded with steel ball, small
Driving spring is cased on cylinder, driving spring is in compressive state；
The centrifugal-block and centrifugation spring constitute centrifugation constraint mechanism, and there is circular hole, axis pin to pass through the circular hole for centrifugal-block one end
Centrifugal-block to be fixed on the body, centrifugal-block lower end is L-shaped structure, and has threaded hole, and centrifugation spring is connect with the threaded hole,
The material of centrifugal-block is tungsten and passes through vacuum heat, and the other end for centrifuging spring is fixed with pressure spiral shell.
Further, the diameter of the drive rod be more than two power connecting sheets string configuration middle part arc-shaped convex it
Between distance, the drag after driving spring movement in place be more than drive rod overcome connect several power connecting sheets on electric switch deform it is anti-
Power.
Further, the dogging beam in the steel ball insertion drive rod is the 1/6~1/4 of steel ball diameter itself.
Further, compressive state is in after the centrifugation spring is installed in place, decrement is 5%~10%.
Working principle of the present invention is as follows：
Usually, constraint mechanism and memorial alloy pin removal are centrifuged to constrain in drive rod far from the position for connecing electric switch, is connect
Power connecting sheet on electric switch is separated from each other with contact, and switch is off.
Experiencing centrifugation overload when memorial alloy pin removal energization action and centrifugal-block overcomes the drag of centrifugation spring outside
When movement, steel ball releases the locking to drive rod, and driving spring pushes drive rod to move downward, and drive rod, which squeezes, is in cantilever beam-like
The power connecting sheet of state so that power connecting sheet is moved to the direction of contact, and each power connecting sheet is expressed to corresponding respectively by drive rod
Two contacts contact respectively, and two contacts become being connected from disconnecting at this time, to realize that switch becomes conducting state from disconnection.
Beneficial effects of the present invention are embodied in：
A) use memorial alloy pin removal and centrifugation constraint mechanism to drive rod double constraints, memorial alloy pin removal passes through
Control system sends instructions effect, and centrifugation constraint mechanism is acted on using the environment overload of mechanism, so set, improving entire mechanism
Safety；
B) it uses steel ball as transmission mechanism, further decreases friction factor, while the work for improving entire mechanism can
By property；
C) setting of spring is driven, it is ensured that drive rod reliable movement in place and can be positively locked in state in place, raising
The Reliability of Microprocessor of entire mechanism；
D) it connects electric switch and is circumferentially uniform-distribution with the variable connector being made of power connecting sheet and two contacts, save sky
Between, and multi-channel control can be carried out at the same time.
E) since the centrifugation spring of original state is in pre-compressed state, centrifugation spring there are drag, may filter that centrifugal-block by
To shaking, the interference signals such as vibration effectively prevent centrifugal-block surprisingly to trigger.
Description of the drawings
Fig. 1 is that a kind of memorial alloy of the present invention and centrifugation constrain multi-channel switch original state schematic diagram；
When Fig. 2 is that memorial alloy pin removal is promotional implement in a kind of memorial alloy of the present invention and centrifugation constraint multi-channel switch
Status diagram in place；
Fig. 3 is a kind of memorial alloy of the present invention and what centrifugation constrained multi-channel switch connects electric switch assembling relationship figure；
Fig. 4 is a kind of memorial alloy of the present invention and what centrifugation constrained multi-channel switch connects electric switch explosive view；
Fig. 5 shows for the memorial alloy pin removal original state of a kind of memorial alloy of the present invention and centrifugation constraint multi-channel switch
It is intended to；
Fig. 6 is a kind of memorial alloy of the present invention and centrifugation constrains the memorial alloy pin removal of multi-channel switch state is shown in place
It is intended to.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Example, invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.In addition, technical characteristic involved in the various embodiments of the present invention described below
It can be combined with each other as long as they do not conflict with each other.
A kind of memorial alloy of the present invention and centrifugation constrain multi-channel switch better embodiment, form such as Fig. 1 and Fig. 2 institutes
Show, by connecing electric switch 1, memorial alloy pin removal 2, drive rod 3, centrifugal-block 4, centrifugation spring 5, driving spring 6, ontology 7, steel ball 8, pressure
Plate 9, pressure spiral shell 10 and axis pin 11 are constituted；
The electric switch 1 that connects is as shown in Figure 3 and Figure 4, by power connecting sheet 1-1, contact 1-2, switch base 1-3, switch body 1-4 and
Screw 1-5 is constituted, and switch body 1-4 is a stepped cylindrical body, and there is circular hole, circular hole surrounding to be uniform-distribution with four sides for inside
Slot has gap so that be mutually communicated between circular hole and square groove, 3, two contact 1- of each switch base between circular hole and square groove
A 2 and power connecting sheet 1-1 constitutes switch all the way, is placed in the square groove of switch body 1-4, and wherein power connecting sheet 1-1 is thickness 0.5mm
Beryllium bronze band bending cut, the upper ends power connecting sheet 1-1, which are plane and middle part, has aperture, by the aperture by power connecting sheet 1-
1 is fixed on screw 1-5 on switch base 1-3, and the sides power connecting sheet 1-1 are string configuration, and the middle part of the string configuration has
Arc-shaped convex, bulge size 0.5mm, the string configuration are cantilever beam-like structure, and switch base 1-3 is a polysulfones bar
Material, there are two aperture, two contact 1-2 are respectively placed in aperture side tool, and interference fit is fixed, and one end of contact 1-2 is ball
Head, the other end are cylinder, and cylinder tail portion connecting wire, the sides switch base 1-3 have groove and protrusion, power connecting sheet 1-1
The string configuration of side is placed in the groove, has gap between power connecting sheet 1-1 and two contact 1-2；
The memorial alloy pin removal 2 is as shown in Figure 5 and Figure 6, by axis pin 2-1, spring 2-2, pin removal pressure spiral shell 2-3, shell
Body 2-4, marmem sleeve 2-5 and conducting wire are constituted, and usually marmem sleeve 2-5 limits axis pin 2-1,
Spring 2-2 and axis pin 2-1 are limited in original state, spring 2-2 is in compressive state, at this time the shape of memorial alloy pin removal 2
State is as shown in figure 5, after marmem sleeve 2-5 is powered heated, marmem sleeve 2-5 temperature distortions, edge
Internal diameter direction releases the limitation to axis pin 2-1 to external diameter expansion, the spring 2-2 driving bearing pins 2-1 movements in compressive state,
The axis pin 2-1 for reaching 2 outside of memorial alloy pin removal is pulled out back, the state of the memorial alloy pin removal 2 after moving in place at this time
As shown in Figure 6；
The drive rod 3 is a stepped cylindrical body, is made of big cylinder and small column, has on the circumference of big cylinder one end
One circle trapezoidal groove, the angle of lower inclined plane composition is 150 ° on the trapezoidal groove, which is embedded with steel ball 8, and steel ball 8 is embedding
It is the 1/6 of 8 diameter itself of steel ball to enter the dogging beam in drive rod 3, and driving spring 6 is cased on small column, and driving spring 6 is in compression shape
State, the diameter of the drive rod 3 are more than the distance between the middle part arc-shaped convex of string configuration of two power connecting sheet 1-1.
Drag after the driving movement in place of spring 6 is more than drive rod 3 and overcomes the drag for connecing four power connecting sheet 1-1 deformations on electric switch 1；
The centrifugal-block 4 and centrifugation spring 5 constitute centrifugation constraint mechanism, and there is 4 one end of centrifugal-block circular hole, axis pin 11 to pass through this
Centrifugal-block 4 is fixed on ontology 7 by circular hole, and 7 lower end of centrifugal-block is L-shaped structure, and has threaded hole, centrifugation spring 5 and the spiral shell
Pit connects, and the material of centrifugal-block 4 is tungsten and passes through vacuum heat, and the other end for centrifuging spring 5 is fixed with pressure spiral shell 10, centrifuges spring
5 are installed in place in compressive state, decrement 5%.
The operation principle of the present embodiment is as follows：
Usually, constraint mechanism and memorial alloy pin removal 2 is centrifuged to constrain in drive rod 3 far from the position for connecing electric switch 1,
The power connecting sheet 1-1 and contact 1-2 connect on electric switch 1 is separated from each other, and switch is off, and state at this time is as shown in Figure 1.
When 2 energization action of memorial alloy pin removal and centrifugal-block 4 experience the drag that centrifugation overload overcomes centrifugation spring 5
When moving out, steel ball 8 releases the locking to drive rod 3, and driving spring 6 pushes drive rod 3 to move downward, at 3 extruding of drive rod
In the power connecting sheet 1-1 of cantilever beam state so that power connecting sheet 1-1 is moved to the direction of contact 1-2, and each power connecting sheet 1-1 is driven
Bar 3 is expressed to two corresponding respectively contact 1-2 and contacts respectively, and two contact 1-2 become being connected from disconnecting at this time, to
Realize that switch becomes conducting state from disconnection, state at this time is as shown in Figure 2.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of memorial alloy and centrifugation constrain multi-channel switch, which is characterized in that including：Connect electric switch (1), memorial alloy pulls out
Sell device (2), drive rod (3), centrifugal-block (4), centrifugation spring (5), driving spring (6), ontology (7), steel ball (8), pressing plate (9), pressure spiral shell
(10) and axis pin (11)；
The electric switch (1) that connects is by power connecting sheet (1-1), contact (1-2), switch base (1-3), switch body (1-4) and screw (1-5)
It constitutes, switch body (1-4) is a stepped cylindrical body, and there is circular hole, circular hole surrounding to be uniform-distribution with several square grooves, circular hole for inside
Between square groove have gap so that be mutually communicated between circular hole and square groove, each switch base (3), two contacts (1-2) and
One power connecting sheet (1-1) constitutes switch all the way, is placed in the square groove of switch body (1-4), and wherein power connecting sheet (1-1) is thickness
The beryllium bronze band bending of 0.2mm~0.5mm is cut, and the upper end power connecting sheet (1-1) is plane and middle part has aperture, by this
Power connecting sheet (1-1) is fixed on screw (1-5) on switch base (1-3) by aperture, and the side power connecting sheet (1-1) is string configuration,
It is 0.3mm~0.5mm that the middle part of the string configuration, which has arc-shaped convex, bulge size, which is cantilever beam
Shape structure, switch base (1-3) are a nonmetallic electrically non-conductive material, and there are two aperture, two contacts (1-2) are respectively placed in side tool
In aperture, interference fit is fixed, and one end of contact (1-2) is bulb shape, and the other end is cylinder, and the connection of cylinder tail portion is led
There is groove and protrusion, the string configuration of the side power connecting sheet (1-1) to be placed in the groove, connect for line, the side switch base (1-3)
There is gap between electric piece (1-1) and two contacts (1-2)；
The memorial alloy pin removal (2) is by axis pin (2-1), spring (2-2), pin removal pressure spiral shell (2-3), shell (2-4), shape
Memorial alloy sleeve (2-5) and conducting wire are constituted, and usually marmem sleeve (2-5) limits axis pin (2-1), by bullet
Spring (2-2) and axis pin (2-1) are limited in original state, and spring (2-2) is in compressive state, as marmem sleeve (2-
5) it is powered after being heated, marmem sleeve (2-5) temperature distortion is released along internal diameter direction to external diameter expansion to axis pin
The limitation of (2-1), spring (2-2) driving bearing pin (2-1) in compressive state move, and reach memorial alloy actuator (2)
The axis pin (2-1) of outside pulls out back；
The drive rod (3) is a stepped cylindrical body, is made of big cylinder and small column, has one on the circumference of big cylinder one end
Trapezoidal groove is enclosed, the angle of lower inclined plane composition is 90 °~150 ° on the trapezoidal groove, which is embedded with steel ball (8), small
Driving spring (6) is cased on cylinder, driving spring (6) is in compressive state；
The centrifugal-block (4) and centrifugation spring (5) constitute centrifugation constraint mechanism, and centrifugal-block (4) one end has circular hole, axis pin (11) logical
It crosses the circular hole centrifugal-block (4) is fixed on ontology (7), centrifugal-block (7) lower end is L-shaped structure, and has threaded hole, centrifugation
Spring (5) is connect with the threaded hole, and the material of centrifugal-block (4) is tungsten and passes through vacuum heat, the other end pressure of centrifugation spring (5)
Spiral shell (10) is fixed.
2. a kind of memorial alloy as described in claim 1 and centrifugation constrain multi-channel switch, it is characterised in that：
The diameter of the drive rod (3) is more than between the middle part arc-shaped convex of the string configuration of two power connecting sheets (1-1)
Distance, the drag after driving spring (6) movement in place overcomes more than drive rod (3) connects several power connecting sheets (1-1) on electric switch (1)
The drag of deformation.
3. a kind of memorial alloy as described in claim 1 and centrifugation constrain multi-channel switch, it is characterised in that：
Dogging beam in the embedded drive rod (3) of the steel ball (8) is the 1/6~1/4 of steel ball (8) diameter itself.
4. a kind of memorial alloy as described in claim 1 and centrifugation constrain multi-channel switch, it is characterised in that：
The centrifugation spring (5) is in compressive state after being installed in place, decrement is 5%~10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558054.8A CN108550497A (en) | 2018-06-01 | 2018-06-01 | A kind of memorial alloy and centrifugation constrain multi-channel switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558054.8A CN108550497A (en) | 2018-06-01 | 2018-06-01 | A kind of memorial alloy and centrifugation constrain multi-channel switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108550497A true CN108550497A (en) | 2018-09-18 |
Family
ID=63511717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810558054.8A Withdrawn CN108550497A (en) | 2018-06-01 | 2018-06-01 | A kind of memorial alloy and centrifugation constrain multi-channel switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108550497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447423A (en) * | 2020-11-05 | 2021-03-05 | 湖北三江航天红林探控有限公司 | Change-over switch with state indication function and initial and in-place state detection method |
-
2018
- 2018-06-01 CN CN201810558054.8A patent/CN108550497A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447423A (en) * | 2020-11-05 | 2021-03-05 | 湖北三江航天红林探控有限公司 | Change-over switch with state indication function and initial and in-place state detection method |
| CN112447423B (en) * | 2020-11-05 | 2024-05-03 | 湖北三江航天红林探控有限公司 | Change-over switch with state indication function and initial and in-place state detection method |
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| PB01 | Publication | ||
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Application publication date: 20180918 |