CN105405697B - Switching device - Google Patents
Switching device Download PDFInfo
- Publication number
- CN105405697B CN105405697B CN201510664837.0A CN201510664837A CN105405697B CN 105405697 B CN105405697 B CN 105405697B CN 201510664837 A CN201510664837 A CN 201510664837A CN 105405697 B CN105405697 B CN 105405697B
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- CN
- China
- Prior art keywords
- conductor plate
- fulcrum
- pulling force
- switching
- helical spring
- 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
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
- H01H5/08—Energy stored by deformation of elastic members by compression or extension of coil springs one end of spring transmitting movement to the contact member when the other end is moved by the operating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
- H01H13/30—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs one end of spring transmitting movement to the contact member when the other end is moved by the operating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
Landscapes
- Push-Button Switches (AREA)
- Slide Switches (AREA)
- Tumbler Switches (AREA)
Abstract
A kind of switching device is provided, the device can reliably carry out the switching of the contact of the slip with moving contact and fixed contact.At pressing operation body (50), conductor plate (30) is operated to rotate by operating body (50).Its rotatory force is imparted to via two pulling force helical springs (41,42) on the independent conductor plate (23) of switching movable part (20), rotates switching movable part (20).Moving contact (24,25,26) is provided with switching movable part (20), by the rotational action for switching movable part (20), moving contact (24,25,26) is slided in sliding part (17a, 17b, 17c), and contact is switched.Due to being improved using two pulling force helical springs (41,42), therefore, the having stable behavior of switching movable part (20) and the reliability of energization path.
Description
Technical field
The behaviour acted the present invention relates to a kind of switching movable part for possessing multiple moving contacts and by operating body
Make conductor plate and link the switching device that action of going forward side by side is made by pulling force helical spring.
Background technology
The invention for being related to switching device is recorded in patent document 1, the switching device is pressed by control member
Press operation, makes multiple moving contacts act simultaneously.
In the switching device, the first drive member with multiple moving contacts has fulcrum and is rotatably supported by
In the pedestal with multiple fixed contacts, and there is fulcrum by the second drive member that conductive metal is formed and swung freely
Ground is supported in said base.By tension spring connect the first drive member free end side and the second drive member from
By side.
If pressing the free end side of the second drive member using control member, the second drive member is swung to pedestal,
With the wobbling action, the first drive member carries out snap-action (Snap Action) action by the active force of tension spring and put
It is dynamic.If the first drive member is swung, the moving contact being arranged in first drive member is being arranged at consolidating on pedestal
Fixed contact is slided, and the conducting state of contact is switched.
In addition, the central moving contact and the second drive member that are arranged in the first drive member are led via tension spring
Logical, above-mentioned moving contact is electrically connected via tension spring and the second drive member with the portion of terminal being arranged on pedestal.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-64548 publications
Had the following advantages that in the switching device described in patent document 1：By carrying out pressing operation to control member, make
Multiple moving contacts are acted simultaneously, and rapid progress is cut with the contact of the slip of multiple moving contacts and multiple fixed contacts
Change.But, and it is unresolved as described below the problem of.
First drive member and the second driving structure are connected by a tension spring in the switching device described in patent document 1
Part.Therefore, for the swing of the second drive member of utilization, make the first drive member with multiple moving contacts rapid and reliable
Ground is acted, it is necessary to improve the spring constant of tension spring.But, if improving spring constant, driven in tension spring and first
Hook (the correspondence Japanese of dynamic component：Extension stops) the hook portion of portion and tension spring and the second drive member easily produces abrasion.
Because tension spring also acts as the function of the energization path of the moving contact to center, if so be repeated by control member
The pressing operation of progress and aggravate above-mentioned abrasion, then impair the reliability of energization path.
In the switching device described in patent document 1, the abutting portion of moving contact and fixed contact is in specific thrust bullet
The hook portion of spring and the first drive member from the fulcrum of the first drive member further from position.Therefore, when utilizing tension spring
When making the swing of the first drive member, moving contact and fixed contact is slided necessary driving force and become big, if not certain
The spring constant of tension spring is improved in degree, then is difficult to ensure that the stability of action.As a result, tension spring and each driving
The hook portion of component is easy to produce abrasion.
The content of the invention
The problem of in order to solve above-mentioned conventional, it is an object of the invention to provide a kind of switching device, it can be realized surely
Fixed action, further, it is possible to improve the reliability being powered via pulling force helical spring.
It is further an object that providing a kind of switching device, the energy when carrying out pressing operation to operating body is set as
Enough effectively to transmit operation force, the reliability of raising action simultaneously reduces operating duty.
The invention provides a kind of switching device, it is characterised in that has：The matrix formed by insulating materials；It is fixed on
Multiple fixed conductors of described matrix；Multiple fixed contacts that are integrated with described matrix and constituting sliding part；Switching is movable
Portion, supports multiple moving contacts, and the moving contact is slided in each described sliding part；And acted by operating body
Operate conductor plate, in above-mentioned switching device, it is described switching movable part be fixed with movable insulator fulcrum conductor plate and with
The independent conductor plate of the fulcrum conductor plate separation, also, set respectively on the fulcrum conductor plate and the independent conductor plate
There is the moving contact, regard the abutting part of the fulcrum conductor plate and the fixed conductor of a part as the first fulcrum, institute
State switching movable part to be rotatably supported by, the base portion of the operation conductor plate is by the abutting part with fixed conductor other described
Rotatably it is supported by as the second fulcrum, first fulcrum and second fulcrum are configured at the position mutually left
Put, the front portion of the operation conductor plate is located at the first fulcrum side, and the toe lateral can be carried out by the operating body
Pressing operation, provided with along first fulcrum and second fulcrum it is opposed direction extension multiple pulling force helical springs, respectively
The end of one side of the individual pulling force helical spring is hooked in the toe lateral of the operation conductor plate, the end hook of the opposing party
The independent conductor plate is hung on, when being swung the operation conductor plate by the operating body, with its swing
Action, it is described switching movable part snap-action action is carried out by the active force of multiple pulling force helical springs, and it is described can
Movable contact is slided in the sliding part, and the operation conductor plate and the independent conductor plate are via multiple pulling force helical springs
It is switched on.
Because the switching device of the present invention is between the independent conductor plate and operation conductor plate being arranged on switching movable part
Multiple pulling force helical springs are hung with, therefore, it is possible to make operation force be shared by multiple pulling force helical springs.It is each therefore, it is possible to reduce
The spring constant of individual pulling force helical spring, and can reduce the hook portion of pulling force helical spring and independent conductor plate and
Pulling force helical spring and the load produced by the hooking in the hook portion of operation conductor plate, can reduce the abrasion in hook portion.Therefore,
Multiple energization paths side by side can be stably made up of pulling force helical spring.
In the switching device of the present invention, the abutting part of the sliding part and the moving contact with the pulling force spiral
It is configured at spaced intervals on the orthogonal direction in direction of the center line extension of spring, the center line position of each pulling force helical spring
Between the adjacent sliding part.
For example, in the switching device of the present invention, in the switching movable part, the fulcrum conductor plate is respectively arranged at described
The both sides of independent conductor plate, the pulling force helical spring is configured between the fulcrum conductor plate.
In the above-described configuration, the application point of the driving force assigned from pulling force helical spring to independent conductor plate is located at movable touch
Between multiple abutting parts that point and sliding part are swung, the load for configuring the abutting part well and pulling force spiral shell can be balanced
Revolve the application point of the active force of spring.As a result, can be so that the stable posture of switching movable part moves the switching movable part
Make, whole moving contacts can be made to be slided simultaneously relative to sliding part.
The switching device of the present invention is preferably that the abutting portion of the moving contact and the sliding part is in hook portion (D1)
Between first fulcrum (S1), the hook portion (D1) is the hook between the pulling force helical spring and the independent conductor plate
Extension portion.
And then, switching device of the invention is preferably, between the pulling force helical spring and the operation conductor plate
Hook portion (D2) to second fulcrum (S2) distance (La) than from the pulling force helical spring and the independent conductor plate it
Between hook portion (D1) to the first fulcrum (S1) distance (Lb) it is long.
In the switching device of above-mentioned composition, act with lighter load operation conductor plate, and with pulling force spiral shell
The transmission efficiency of power when rotation spring is acted switching movable part becomes good, moving contact can be made to act rapidly.
In addition, the switching device of the present invention is preferably, portion is formed with the hook pulling force to the independent conductor plate at one end
The hook hole of helical spring, and there is retention tab in the other end, the retention tab is in the drawing with the pulling force helical spring
The side that the direction that power is acted on intersects is upwardly extended, and the retention tab is embedded in the movable insulator.
In the switching device of above-mentioned composition, the pulling force of many piece pulling force helical spring is acted on independent conductor plate all the time, but
It is due to that the retention tab that the side intersected in the direction acted on the pulling force is upwardly extended is embedded in movable insulator, therefore, no
Easily produce the bad phenomenon as independent conductor plate departs from movable insulator.
Invention effect
The switching device of the present invention, can be so that the stable posture of switching movable part by using multiple pulling force helical springs
Act the switching movable part, it is possible to increase with the reliability of the energization path arranged side by side of multiple pulling force helical springs formation.
In addition, the switching device of the present invention can make multiple moving contacts rapidly and stably by pulling force helical spring
Action, and then, the service load when carrying out pressing operation to operating body can be reduced.
Brief description of the drawings
Fig. 1 is the stereogram for the outward appearance for representing the switching device of the present invention.
Fig. 2 is the exploded perspective view of the switching device shown in Fig. 1.
Fig. 3 is the exploded perspective view in the main actions portion for representing switching device.
Fig. 4 is the exploded perspective view for the conductive part for only representing the main actions portion shown in Fig. 3.
Fig. 5 is the side view of the state for the non-external force action for representing the main actions portion shown in Fig. 3.
Fig. 6 (A) is the side view for removing pedestal and movable insulator, and which show the state of non-external force action, Fig. 6 (B)
It is the schematic diagram for the action for representing each portion now.
Fig. 7 (A) is the side view for removing pedestal and movable insulator, and the state in way is pressed which show operating body,
Fig. 7 (B) is the schematic diagram of the action in each portion now.
Fig. 8 (A) is the side view for removing pedestal and movable insulator, and which show the timing that contact is switched, Fig. 8 (B)
It is the schematic diagram for the action for representing each portion now.
Fig. 9 (A) is the side view for removing pedestal and movable insulator, the shape after being pressed completely which show operating body
State, Fig. 9 (B) is the schematic diagram for the action for representing each portion now.
Figure 10 is the explanation figure of the composition of the switching circuit for the switching device for representing form of implementation.
Symbol description
1 switching device
2 shells
3 lids
10a, 10b side matrix
10c centers matrix
The fixed conductor of 11a, 11b first
The fixed conductor of 12a, 12b second
13a, 13b, 15a top fixed contact
14a, 14b, 16a bottom fixed contact
17a, 17b side sliding part
17c centers sliding part
20 switching movable parts
21st, 22 fulcrum conductor plate
21a, 22a movable end
23 independent conductor plates
24th, 25 side moving contact
26 central movable contacts
27 movable insulators
The point supporting portion of 27a, 27b first
30 operation conductor plates
31a, 31b movable end
33 operating sheets
The point supporting portion of 35a, 35b second
41st, 42 pulling force helical spring
50 operating bodies
The fulcrums of S1 first
The fulcrums of S2 second
D1 first acts on point of force application
D2 second acts on point of force application
Embodiment
Fig. 1 is the overall perspective view of the switching device 1 of form of implementation of the present invention, and Fig. 2 is its exploded perspective view.In addition,
Lid 3 is eliminated in Fig. 2.
Switching device 1 needs the electronics electricity of high reliability to switch the device of multiple contacts simultaneously such as vehicle
Road.
<The construction of switching device>
As depicted in figs. 1 and 2, switching device 1 has shell 2 and lid 3.Shell 2 by insulating properties synthetic resin material
Formed, it is the rectangular shape with bottom 2a and four side plate 2b and upper opening.Lid 3 synthesizes tree by insulating properties
Fat material is formed, and the opening portion of its closure 2 is simultaneously fixed on the shell 2 by methods such as welding.
Fig. 3 and Fig. 4 represent the main actions portion of switching device 1.The main actions portion shown in Fig. 3 is illustrate only in Fig. 4
In by conductive metal plate shape into energization path constitute.In addition, illustrating in Fig. 10 by cutting that each energization path is constituted
Change the circuit diagram of circuit.
On the bottom 2a of the shell 2 shown in Fig. 2, opening portion 2c is formed at three, 2c is fixed with side in each opening portion
Fang Jiti 10a, 10b and central matrix 10c.Matrix 10a, 10b, 10c are formed by the synthetic resin material of insulating properties.
As shown in Figure 2, Figure 3, Figure 4, the first fixed conductor 11a is kept on the matrix 10a of side, in another side matrix
The first fixed conductor 11b is kept on 10b.It is formed with portion of terminal 11c on the first fixed conductor 11a, portion of terminal 11c is from side
A Fang Jiti 10a sides to the left stretch out.Portion of terminal 11d, portion of terminal 11d are also integrally formed on the first fixed conductor 11b from side
A side stretches out Fang Jiti 10b to the right.
On the matrix 10a of side, the second fixed conductor is maintained in the position with the first fixed conductor 11a intervals
12a, stretches out with the portion of terminal 12c of the second fixed conductor 12a one from a side matrix 10a sides to the left.Equally, in side base
The second fixed conductor 12b is also maintained on body 10b, the portion of terminal 12d with the second fixed conductor 12b one is from side matrix 10b
A side stretches out to the right.
On the matrix 10a of side, top fixed contact 13a is maintained in the way of interval up and down and bottom is fixed and touched
Point 14a.Portion of terminal 13c is integrally formed on the fixed contact 13a of top, portion of terminal is integrally formed on the fixed contact 14a of bottom
14c.Portion of terminal 13c, 14c is stretched out from a side matrix 10a sides to the left.Top is maintained on the matrix 10b of side and fixes tactile
Point 13b and bottom fixed contact 14b.Portion of terminal 13d is integrally formed on the fixed contact 13b of top, in bottom fixed contact 14b
Upper integrally formed portion of terminal 14d.From side matrix 10b, a side stretches out portion of terminal 13d, 14d to the right.In addition, in Fig. 3 and Fig. 4
In, and the portion of terminal 14d not shown with bottom fixed contact 14b one, portion of terminal 14d is shown in the circuit diagram of figure 10.
Top fixed contact 15a and bottom fixed contact 16a are maintained on central matrix 10c.In top fixed contact
Portion of terminal 15b, portion of terminal 15b is integrally formed on 15a to stretch out from central matrix 10c to nearby side.On the fixed contact 16a of bottom
Integrally formed portion of terminal 16b, portion of terminal 16b from central matrix 10c inwards side to stretching.
In the manufacture method of switching device 1, first, by fixed conductor 11a, 12a, top fixed contact 13a and bottom
Molten resin is projected in fixed contact 14a configurations in mould and into mould, passes through so-called insert-molding method formation side matrix
10a.Thus, fixed conductor 11a, 12a, top fixed contact 13a and bottom fixed contact 14a and side matrix 10a one are made
Change.Equally, it is using the formation of insert-molding method that conductor 11b, 12b, top fixed contact 13b and bottom fixed contact 14b is integral
The side matrix 10b that ground is fixed, in addition, being formed using insert-molding method by top fixed contact 15a and bottom fixed contact 16a
The fixed central matrix 10c of one.Thereafter, matrix 10a, 10b, 10c that fixed conductor and fixed contact are secured are set
In mould, molten resin is projected into mould, so-called dual-color forming method formation shell 2 is utilized.Therefore, in the bottom of shell 2
Opening portion 2c is integrally fixed with matrix 10a, 10b, 10c at the three of 2a.In addition, the bottom 2a and base after integration will be included
Composition including body 10a, 10b, 10c is referred to as pedestal.
It is as shown in figure 3, intermediate insulation portion 10d is situated between top fixed contact 13a and bottom fixed contact 14a, should
Intermediate insulation portion 10d is integrally formed using synthetic resin material and the side matrix 10a of insulating properties, by top fixed contact 13a,
Bottom fixed contact 14a and intermediate insulation portion 10d constitutes side sliding part 17a.It is wide with identical on the sliding part 17a of side
Degree size is formed with top fixed contact 13a, bottom fixed contact 14a and intermediate insulation portion 10d.Equally, in side matrix 10b
On, side sliding part 17b is constituted by top fixed contact 13b, bottom fixed contact 14b and intermediate insulation portion 10e.In addition,
On central matrix 10c, central sliding part is constituted by top fixed contact 15a, bottom fixed contact 16a and intermediate insulation portion 10f
17c。
As shown in Figures 2 and 3, in main actions portion provided with switching movable part 20.Switching movable part 20 has a pair of fulcrums
Conductor plate 21,22 and the independent conductor plate 23 between two fulcrum conductor plates 21,22.Three conductor plates 21,22,23 are by leading
Electrical metallic plate is formed, and is kept on movable insulator 27.In the manufacturing process of switching movable part 20, by three
Piece conductor plate 21,22,23 is arranged in mould and molten resin is projected into mould, and movable insulator is formed by insert-molding method
27.Therefore, a pair of fulcrum conductor plates 21,22 and independent conductor plate 23 are partly embedded in movable insulator 27.
As shown in Figure 3 and Figure 4, on fulcrum conductor plate 21, in diagram, nearby side is formed with movable end 21a, in fulcrum
On conductor plate 22, in diagram, nearby side is formed with movable end 22a.Fixed in first be held on the side matrix 10a
The first point supporting portion 27a is formed with conductor 11a, is formed on the first fixed conductor 11b being held on the matrix 10b of side
There is the first point supporting portion 27b.Movable end 21a is hooked by the first point supporting portion 27a, and movable end 22a is by the first fulcrum
Support 27b is hooked, using movable end 21a, 22a and first point supporting portion 27a, 27b abutting part as the first fulcrum, will
The switching supporting of movable part 20 moves freely to swing up and down.
As shown in figure 4, side moving contact 24 to be fixed on to the lower surface of the free end side of fulcrum conductor plate 21.Side can
Movable contact 24 is by being capable of the conductive metal plate shape of elastic deformation into and being conducted with fulcrum conductor plate 21.It is movable in side
On contact 24, left and right is opposed to provided with a pair of clampings slide 24a, 24a, and the side sliding part 17a shown in Fig. 3 is slided by clamping
Piece 24a, 24a are clipped.Equally, side is fixed with conduction mode movably touched in the lower surface of the free end side of fulcrum conductor plate 22
Point 25.Provided with a pair of clampings slide 25a, 25a on side moving contact 25, side sliding part 17b is by clamping slide
25a, 25a are clipped.Equally, central movable contact 26 is fixed with conduction mode in the lower surface of independent conductor plate 23.In center
Moving contact 26 is clipped provided with a pair of clamping slide 26a, 26a, central sliding part 17c by clamping slide 26a, 26a.
As shown in Figure 2, Figure 3, Figure 4, in main actions portion, between matrix 10a, 10b, 10c and switching movable part 20
Provided with operation conductor plate 30.Operation conductor plate 30 is formed by the metallic plate of electric conductivity.One end is used as in operation conductor plate 30
Base portion side on form a pair of movable ends 31a, 31b.As shown in Figure 3 and Figure 4, in second be held on the matrix 10a of side
The second point supporting portion 35a is formed on fixed conductor 12a, is formed on the second fixed conductor 12b for be held in side matrix 10b
Second point supporting portion 35b.Movable end 31a is hooked by the second point supporting portion 35a, and movable end 31b is by the second fulcrum branch
Bearing portion 35b is hooked, and using movable end 31a, 31b and second point supporting portion 35a, 35b abutting part as the second fulcrum, will be grasped
Make conductor plate 30 to support as vertically wobbling action freely.
It is used as the first fulcrum and conduct of movable end 21a, 22a and first point supporting portion 27a, 27b abutting part
Second fulcrum of movable end 31a, 31b and second point supporting portion 35a, 35b abutting part configures what left and right in Figure 5 was left
Position, switches the free end of movable part 20 and the free end of operation conductor plate 30 and reciprocally stretches out in opposite direction.That is, first
Fulcrum and the second fulcrum are configured in the position mutually left on matrix 10a, 10b, 10c extended direction (length direction)
Put.
As shown in figure 3, in the free end side of switching movable part 20, having a pair in the one end upper shed of independent conductor plate 23
Hole 23a, 23b are hooked, has a pair of hook holes 32a, 32b in the free end side upper shed as the other end of operation conductor plate 30.
A pair of pulling force helical springs 41,42 are set in main actions portion.One hook portion 41a of pulling force helical spring 41 hangs over hook hole
23a, another hook portion 41b hang over hook hole 32a.The hook portion 42a of one side of pulling force helical spring 42, which is hung over, hooks hole 23b, another
The hook portion 42b of side hangs over hook hole 32b.
Pulling force helical spring 41,42 is formed by the spring wire of electric conductivity, is mutually led using the pulling force helical spring 41,42
Draw the free end side of switching movable part 20 and the free end side of operation conductor plate 30, and by pulling force helical spring 41,42, solely
Vertical conductor plate 23 and operation conductor plate 30 are conducted.
In the front portion of the free end side as the other end positioned at operation conductor plate 30, operating sheet 33 is bent.Such as Fig. 1
It is shown, sliding eye 3a is formed on lid 3, operating body 50 is sliding freely supported on sliding eye 3a.Precisely, operating body 50
It is supported in the way of it can move up and down on the unshowned guide part being arranged in shell 2.As shown in figure 5, in shell 2
Inside, press section 51 is formed with the bottom of operating body 50, if to the inside push body 50 of shell 2, by by
Splenium 51 presses down on operating sheet 33.
As shown in figure 4, be arranged at switching movable part 20 on independent conductor plate 23 the other end on, with pulling force spiral shell
Retention tab 23c, 23d is formed with the direction (orthogonal direction) that the direction that the pulling force of rotation spring 41,42 is acted on intersects.
As shown in figure 3, retention tab 23c, 23d is buried and is maintained in movable insulator 27, and the front portion of retention tab 23c, 23d
Protruded to the left and right from movable insulator 27.Although the pulling force of pulling force helical spring 41,42 is acted on independent conductor plate 23 all the time,
But, due to retention tab 23c, 23d is maintained in movable insulator 27, depart from so not allowing to be also easy to produce independent conductor plate 23 such as
Bad phenomenon as movable insulator 27.
<Assembling operation>
The assembling operation of switching device 1 is illustrated.
Side matrix 10a, 10b and center matrix 10c shown in Fig. 2 and Fig. 5 are integrally fixed using dual-color forming method
On the bottom 2a of shell 2.
The operation conductor plate 30 and switching movable part 20 that are connected by pulling force helical spring 41,42 are assembled in the inside of shell 2.
Now, movable end 31a, 31b of operation conductor plate 30 are hooked by second point supporting portion 35a, 35b, the second fulcrum branch
Bearing portion 35a, 35b is formed on second fixed conductor 12a, 12b of bottom 2a (pedestal) side of shell 2.In addition, switching can
Movable end 21a, 22a of the fulcrum conductor plate 21,22 in dynamic portion 20 are hooked by first point supporting portion 27a, 27b, this first
Dot point portion 27a, 27b formation is on first fixed conductor 11a, 11b.
If the operation conductor plate 30 and switching movable part 20 that are connected by pulling force helical spring 41,42 are assembled in shell 2
Inside, then as shown in figure 5, by the pulling force of pulling force helical spring 41,42, operation conductor plate 30 will (sides of α 1 counterclockwise
To) takeoff, switching movable part 20 clockwise takeoff by (directions of β 1).But, in operation conductor plate 30, by fulcrum
The margining tablet 37 that side is bent downwards is abutted with forming the unshowned limiter portion on the bottom 2a of shell 2, limitation operation
Conductor plate 30 counterclockwise takeoff by (directions of α 1).In addition, limiting teat 28 and shape from movable insulator 27 is downward projection of
Into the limiter portion 10g contacts on side matrix 10a, 10b, limitation switching movable part 20 clockwise jump by (directions of β 1)
Rise.
Therefore, it is assembled in by operation conductor plate 30 and switching movable part 20 in the state of the inside of shell 2, can be easily
Enter to be about to operating body 50 and lid 3 is assembled in operation in shell 2.
<Action specification>
Below, the action to switching device 1 is illustrated.
Fig. 6 (A) is in the main actions portion under the free state on operating body 50 is not acted in operating physical force, to remove
Side view after pedestal (matrix 10a, 10b, 10c and bottom 2a) and movable insulator 27, Fig. 6 (B) is represented in free shape
The schematic diagram of the action in each portion under state.
In Fig. 6 into Fig. 9, movable end 21a, the 22a and formation formed on fulcrum conductor plate 21,22 is fixed first
The abutting part of first point supporting portion 27a, 27b on conductor 11a, 11b is expressed as the first fulcrum S1, is formed in operation conductor plate
Second point supporting portion 35a, the 35b of movable end 31a, 31b and formation on second fixed conductor 12a, 12b on 30 supports
Socket part is expressed as the second fulcrum S2.In addition, hook portion 41a, 42a of pulling force helical spring 41,42 and be arranged on switching movable part 20
On the hook portion of independent conductor plate 23 be expressed as the first effect point of force application D1, the hook portion 41b of pulling force helical spring 41,42,
The hook portion of the free end of 42b and operation conductor plate 30 is expressed as the second effect point of force application D2.
Under the free state shown in Fig. 6 (A) (B), act on the first effect point of force application D1 pulling force helical spring 41,
42 directed force F 1a and the directed force F 2a for the pulling force helical spring 41,42 for acting on the second effect point of force application D2 position
Positioned at more closer to the top than the first fulcrum S1.Therefore, operation conductor plate 30 (α 1 counterclockwise centered on the second fulcrum S2
Direction) rotate, (directions of β 1) is rotated switching movable part 20 clockwise centered on the first fulcrum S1.In addition, by cutting
The part changed on the left of the diagram of movable part 20 is abutted with the top surface of lid 3, and thus limitation switches movable part 20 to side clockwise
To the rotation.
Therefore, the clamping slide 24a for the side moving contact 24 being arranged on switching movable part 20 is in side sliding part
17a is contacted with top fixed contact 13a.Equally, the clamping slide 25a of side moving contact 25 side sliding part 17b with
Top fixed contact 13b is contacted.In addition, the clamping slide 26a of central movable contact 26 consolidates in central sliding part 17c and top
Fixed contact 15a is turned on.
The conducting state of the circuit of switching device 1 now is as shown in Figure 10.
(1) first fixed conductor 11a is turned on via the first point supporting portion 27a and movable end 21a hook portion, fulcrum
Plate 21 and side moving contact 24, are turned on, portion of terminal 11c and portion of terminal 13c are on shape with top fixed contact 13a
State.
Hook portions of (2) the first fixed conductor 11b via the first point supporting portion 27b and movable end 22a, fulcrum conductor
Plate 22 and side moving contact 25, are turned on, portion of terminal 11d and portion of terminal 13d are on shape with top fixed contact 13b
State.
(3) second fixed conductor 12a, 12b are via second point supporting portion 35a, 35b and movable end 31a, 31b hook
Extension portion, operation conductor plate 30, two pulling force helical springs 41,42, independent conductor plate 23 and central movable contact 26, it is and upper
Portion fixed contact 15a is turned on.Therefore, portion of terminal 12c, portion of terminal 12d and portion of terminal 15b are in mutual conduction state.
Fig. 7 (A) is the side view removed after pedestal and movable insulator 27 under the midvoyage condition of pressing operation body 50,
Fig. 7 (B) is the schematic diagram for the action for representing each portion under state on the way.Fig. 8 (A) is removing when contact has been switched
The side view gone after pedestal and movable insulator 27, Fig. 8 (B) is the action for representing each portion when contact has been switched
Schematic diagram.
If acting on downward operating physical force P on operating body 50, the inside of operating body 50 towards shell 2 is depressed to Fig. 7
(A) position, then operating conductor plate 30, (directions of α 2) is rotated clockwise, shown in such as Fig. 7 (B), the effect of the second active force
Point D2 is moved more than the first fulcrum S1 and to than the first fulcrum S1 lower sides.Because connection first acts on point of force application D1 and second
The effect line of force for acting on point of force application D2 is moved to than the first fulcrum S1 lower sides, therefore, starts cutting at the time point
Change the torque of effect counter clockwise direction (directions of β 2) on movable part 20.
And then, if operating body 50 is pressed into defined position, from pulling force helical spring 41,42 to switching movable part 20
The torque of the counter clockwise direction (directions of β 2) of imparting be more than by each moving contact 24,25,26 and top fixed contact 13a, 13b,
Resistance torque produced by 15a stiction, then as shown in Fig. 8 (A) (B), the switching moment of movable part 20 is counterclockwise
(directions of β 2) is rotated.That is, switching movable part 20 carries out snap-action action by the active force of pulling force helical spring 41,42.Now, side
Can movable contact 24 clamping slide 24a side sliding part 17a slide and contacted with bottom fixed contact 14a, meanwhile, side
Can movable contact 25 clamping slide 25a side sliding part 17b slide and contacted with bottom fixed contact 14b.And then, in
The clamping slide 26a of centre moving contact 26 is slided in central sliding part 17c and contacted with bottom fixed contact 16a.
As a result, whole sliding part 17a, 17b, 17c double-throw contacts at three, in the circuit diagram shown in Figure 10,
Portion of terminal 11c and portion of terminal 14c turns into conducting state, and portion of terminal 11d and portion of terminal 14d turn into conducting state.In addition, portion of terminal
12c, 12d and portion of terminal 16b turn into conducting state.
Fig. 9 (A) is after the removing pedestal and movable insulator 27 being pressed to operating body 50 in the state of action dead point
Side view, Fig. 9 (B) is represents the schematic diagram of the action in each portion now.At Fig. 9 (A) (B) time point, act on
The torque for switching the directions of β 2 of movable part 20 reaches maximum.Therefore, in the phase for the position that operating body 50 is pressed to Fig. 9 (A) (B)
Between, switching movable part 20 is reliably rotated with double-throw contact.
In Fig. 9 (A) (B), switching movable part 20 turns to approximate horizontal posture, and with the limitation that is arranged on shell 2
Device portion contact and can not further counterclockwise (directions of β 2) rotate.Now, due to the second effect point of force application D2 movements
Quite remote position is left downwards to than the first fulcrum S1, so utilizing pulling force (F1b, F2b of pulling force helical spring 41,42
Or F1c, F2c), to the big torque of the operation effect counter clockwise direction of conductor plate 30 (directions of α 1).Therefore, assigned if removed
Operating physical force P on operating body 50, then operating conductor plate 30, (directions of α 1) is rotated counterclockwise centered on the second fulcrum S2.
If operating conductor plate 30 in the way for returning to the initial attitude as shown in Fig. 6 (A) (B), pulling force spiral bullet is utilized
The torque for the clockwise direction (directions of β 1) that the active force of spring 41,42 is assigned to switching movable part 20 is more than by each moving contact
24th, 25,26 and bottom fixed contact 14a, 14b, 16a stiction produced by resistance torque, then switch the wink of movable part 20
Between clockwise (β 1) rotate, each moving contact 24,25,26 contacts with top fixed contact 13a, 13b, 15a, and circuit is extensive
Again to the original state shown in Figure 10.
<The action effect that form of implementation is played>
In above-mentioned form of implementation, the independent conductor plate 23 and operation conductor plate 30 being arranged on switching movable part 20 are by two
Root pulling force helical spring 41,42 links.For mutually drawing the free end of switching movable part 20 and the freedom of independent conductor plate 23
The active force at end by many (in form of implementation be two) pulling force helical spring is shared, so each pulling force spiral bullet will not be made
The spring constant of spring is excessive.Produced therefore, it is possible to reduce by the friction in hook portion 41a, 42a and the hook portion for hooking hole 23a, 23b
Load and by hook portion 41b, 42b and hook hole 32a, 32b hook portion friction produce load, it is not easy to produce hook
The abrasion of each contact site in portion and hook hole, so as to which the energization path using pulling force helical spring 41,42 is set as
Stable state.
In addition, as shown in Figure 10 circuit diagram, due to abreast pacifying between operation conductor plate 30 and independent conductor plate 23
Equipped with the pulling force helical spring 41,42 as electric conductor, so can also reduce pulling force helical spring 41,42 is logical as being powered
D.C. resistance when road is used.
And then, the application point phase of the active force acted on from two pulling force helical springs 41,42 to independent conductor plate 23
Configured for the center for switching movable part 20 by left and right in impartial position.And then, two pulling force helical springs 41,42 are matched somebody with somebody
Put between a pair of fulcrum conductor plates 22,22 positioned at the left and right sides.Therefore, switching movable part 20, which is not allowed to be also easy to produce, reverses dynamic
Make, can be centered on the first fulcrum S1 with stable posture progress rotational action.
In addition, the center line of the pulling force helical spring 41 of a side be located at side moving contact 24 and central movable contact 26 it
Between, the center line of the pulling force helical spring 42 of the opposing party is located between side moving contact 25 and central movable contact 26.Although
Switching movable part 20 is rotated using the elastic force of pulling force helical spring 41,42, still, due to the work of pulling force helical spring 41,42
Position firmly is located between adjacent moving contact, so each moving contact, which equably can be assigned, makes each movably touch
The power that point 24,25,26 and each fixed contact are slided, can make the switching action of multiple contacts stable.
As shown in Fig. 8 (B), if to switch the distance that point of force application D1 is acted on from the first fulcrum S1 to first of movable part 20
For L1, the distance using clamping slide 24a, 25a, 26a from the first fulcrum S1 to each moving contact 24,25,26 is L2, then L1
(L1 ＞ L2) longer than L2.That is, clamping slide 24a, 25a, 26a be located at the effect points of force application of the first fulcrum S1 and first D1 it
Between.Accordingly, with respect to the first driving forces for being acted on of effect point of force application D1, can make to clamping slide 24a, 25a,
The operation force that 26a is acted on increases L1/L2 times, such as in the state of Fig. 8 (A) (B), reliably switching can be made movable
Portion 20 is rotated counterclockwise.
As shown in Fig. 6 (B), the second fulcrum S2 to second effect points of force application D2 of operation conductor plate 30 length La ratios are cut
Change movable part 20 the effects of the first fulcrum S1 and first point of force application D1 apart from Lb long enoughs.Therefore, shown in Fig. 6 (B)
Under free state, operation conductor plate 30 can be made smaller relative to the rotational angle θ 2 of horizontal direction.Therefore, even if making switching can
Dynamic portion 20 is so that larger angle, θ 1 is rotated and in the case of increasing clamping slide 24a, 25a, 26a sliding distance, also can
The operating angle θ 2 of enough reduction operation conductor plates 30.Therefore, it is possible in pressing operation body 50, make from operation conductor plate 30 by
Reaction force it is smaller, action tactile it is good.
Claims (8)
1. a kind of switching device, it is characterised in that have：The matrix formed by insulating materials；It is fixed on the multiple of described matrix
Fixed conductor；Multiple fixed contacts that are integrated with described matrix and constituting sliding part；Switch movable part, support multiple movable
Contact, the moving contact is slided in each described sliding part；And the operation conductor plate acted by operating body,
In above-mentioned switching device,
The independence that the switching movable part is fixed with fulcrum conductor plate on movable insulator and separated with the fulcrum conductor plate
Conductor plate, also, the moving contact is respectively equipped with the fulcrum conductor plate and the independent conductor plate,
It regard the abutting part of the fulcrum conductor plate and the fixed conductor of a part as the first fulcrum, the switching movable part
Rotatably it is supported by, the base portion of the operation conductor plate will be used as the second fulcrum with the abutting part of fixed conductor other described
And be rotatably supported by, first fulcrum and second fulcrum are configured at and mutually positioned away from, and the operation is led
The front portion of body plate be located at the first fulcrum side, the toe lateral by the operating body can by carry out pressing operation,
Provided with multiple pulling force helical springs along the opposed direction extension of first fulcrum and second fulcrum, described in each
The end of one side of pulling force helical spring is hooked in the toe lateral of the operation conductor plate, and the end of the opposing party is hooked in institute
Independent conductor plate is stated, when being swung the operation conductor plate by the operating body, with the operation conductor
The wobbling action of plate, the switching movable part carries out snap-action action by the active force of multiple pulling force helical springs, and
And the moving contact is slided in the sliding part,
The operation conductor plate and the independent conductor plate are switched on via multiple pulling force helical springs.
2. switching device according to claim 1, it is characterised in that
The abutting part of the sliding part and the moving contact with the direction of the center line of pulling force helical spring extension just
It is configured at spaced intervals on the direction of friendship, the center line of each pulling force helical spring is located between the adjacent sliding part.
3. switching device according to claim 1, it is characterised in that
In the switching movable part, the fulcrum conductor plate is respectively arranged at the both sides of the independent conductor plate, the pulling force spiral shell
Rotation spring is configured between the fulcrum conductor plate.
4. switching device according to claim 2, it is characterised in that
In the switching movable part, the fulcrum conductor plate is respectively arranged at the both sides of the independent conductor plate, the pulling force spiral shell
Rotation spring is configured between the fulcrum conductor plate.
5. according to switching device according to any one of claims 1 to 4, it is characterised in that
The abutting portion of the moving contact and the sliding part between the first hook portion (D1) and first fulcrum (S1),
The first hook portion (D1) is the hook portion between the pulling force helical spring and the independent conductor plate.
6. switching device according to claim 5, it is characterised in that
The second hook portion (D2) between the pulling force helical spring and the operation conductor plate is to second fulcrum (S2)
Distance (La) than the first hook portion (D1) to the first fulcrum between the pulling force helical spring and the independent conductor plate
(S1) distance (Lb) is long.
7. according to switching device according to any one of claims 1 to 4, it is characterised in that
Portion is formed with the hook hole for hooking the pulling force helical spring to the independent conductor plate at one end, and in the other end tool
There is retention tab, the retention tab is upwardly extended in the side that the direction that the pulling force with the pulling force helical spring is acted on intersects, institute
State retention tab and be embedded in the movable insulator.
8. switching device according to claim 6, it is characterised in that
Portion is formed with the hook hole for hooking the pulling force helical spring to the independent conductor plate at one end, and in the other end tool
There is retention tab, the retention tab is upwardly extended in the side that the direction that the pulling force with the pulling force helical spring is acted on intersects, institute
State retention tab and be embedded in the movable insulator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014184398A JP6282202B2 (en) | 2014-09-10 | 2014-09-10 | Switching device |
| JP2014-184398 | 2014-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105405697A CN105405697A (en) | 2016-03-16 |
| CN105405697B true CN105405697B (en) | 2017-10-27 |
Family
ID=54072744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510664837.0A Active CN105405697B (en) | 2014-09-10 | 2015-09-10 | Switching device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2996127B1 (en) |
| JP (1) | JP6282202B2 (en) |
| CN (1) | CN105405697B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7515585B2 (en) | 2020-06-24 | 2024-07-12 | アルプスアルパイン株式会社 | Changeover switch |
| WO2023112922A1 (en) * | 2021-12-15 | 2023-06-22 | アルプスアルパイン株式会社 | Movable unit, switchover switch, and manufacturing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58319U (en) * | 1981-06-25 | 1983-01-05 | セ−ホ−ベリリウムスイツチ工業株式会社 | small switch |
| JP2008210654A (en) * | 2007-02-27 | 2008-09-11 | Hst Kk | Switch |
| EP2738782B1 (en) * | 2008-09-22 | 2017-06-14 | Alps Electric Co., Ltd. | Switch device and method of assembling snap action mechanism |
| JP2012064548A (en) * | 2010-09-17 | 2012-03-29 | Alps Electric Co Ltd | Switch device |
| JP4760998B1 (en) * | 2010-10-12 | 2011-08-31 | オムロン株式会社 | switch |
-
2014
- 2014-09-10 JP JP2014184398A patent/JP6282202B2/en active Active
-
2015
- 2015-09-09 EP EP15184441.2A patent/EP2996127B1/en active Active
- 2015-09-10 CN CN201510664837.0A patent/CN105405697B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016058271A (en) | 2016-04-21 |
| JP6282202B2 (en) | 2018-02-21 |
| EP2996127A1 (en) | 2016-03-16 |
| CN105405697A (en) | 2016-03-16 |
| EP2996127B1 (en) | 2017-02-22 |
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Address after: Tokyo, Japan, Japan Patentee after: Alpine Alpine Company Address before: Tokyo, Japan, Japan Patentee before: Alps Electric Co., Ltd. |