CN105405697A - Switch device - Google Patents
Switch device Download PDFInfo
- Publication number
- CN105405697A CN105405697A CN201510664837.0A CN201510664837A CN105405697A CN 105405697 A CN105405697 A CN 105405697A CN 201510664837 A CN201510664837 A CN 201510664837A CN 105405697 A CN105405697 A CN 105405697A
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- CN
- China
- Prior art keywords
- conductor plate
- fulcrum
- pulling force
- helical spring
- switching device
- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/004—Two parallel coil springs
Landscapes
- Push-Button Switches (AREA)
- Tumbler Switches (AREA)
- Slide Switches (AREA)
Abstract
The invention provides a switch device, which can reliably carry out switching of sliding contacts between a movalbe contact and a fixed contact. If an operating body 50 is pushed, an operation conductor plate 30 is turned by the operating body 50. Turning forces are applied to an independent conductor plate 23 of a switching movable part 20 via two extension coil springs 41 and 42, and the switching movable part 20 is turned. The switching movable part 20 is provided with movable contacts 24, 25, and 26, and the movable contacts 24, 25, and 26 slide against the sliding parts 17a, 17b, and 17c due to the turning operation of the switching movable part 20 such that the contacts are switched. Since the two extension coil springs 41 and 42 are used, the operation of the switching movable part 20 is stabilized and the reliability of energization paths are improved.
Description
Technical field
The present invention relates to a kind of possess multiple moving contact switching movable part and linked by pulling force helical spring the switching device that action of going forward side by side does by the operation conductor plate that carries out action by operating body.
Background technology
In patent documentation 1, describe the invention relating to switching device, this switching device, by the pressing operation of a control member, makes the action simultaneously of multiple moving contact.
In this switching device, first drive member with multiple moving contact has fulcrum and is rotatably supported in the pedestal with multiple fixed contact, and the second drive member formed by conductive metal has fulcrum and is rotatably supported in said base.The free end side of the first drive member and the free end side of the second drive member is connected by a tension spring.
If utilize control member to press the free end side of the second drive member, then the second drive member swings to pedestal, and with this wobbling action, the first drive member is carried out snap-action (SnapAction) action by the active force of tension spring and swung.If the first drive member swings, then the moving contact be arranged in this first drive member is being arranged at the slip of the fixed contact on pedestal, and the conducting state of contact is switched.
In addition, be arranged on the moving contact of the central authorities in the first drive member and the second drive member via tension spring conducting, above-mentioned moving contact, via tension spring and the second drive member, is electrically connected with the portion of terminal be arranged on pedestal.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2012-64548 publication
The switching device tool recorded in patent documentation 1 has the following advantages: by carrying out pressing operation to control member, makes the action simultaneously of multiple moving contact, carries out rapidly the switching of the contact of the slip of adjoint multiple moving contact and multiple fixed contact.But, and unresolved problem as described below.
The switching device recorded in patent documentation 1 connects the first drive member and the second drive member by a tension spring.Therefore, in order to utilize the swing of the second drive member, making the first drive member quickly and reliably action with multiple moving contact, needing the spring constant improving tension spring.But, if improve spring constant, then easily produce wearing and tearing in hook (corresponding Japanese: the only hang) portion of tension spring and the first drive member and the hook portion of tension spring and the second drive member.The function of the energising path of the moving contact to central authorities is also played, if so repeatedly carry out the pressing operation that undertaken by control member and aggravate above-mentioned wearing and tearing, then impair the reliability of energising path due to tension spring.
In the switching device recorded in patent documentation 1, the abutting portion of moving contact and fixed contact in the hook portion of specific thrust spring and the first drive member from the fulcrum of the first drive member further from position.Therefore, when utilizing tension spring to make the first drive member swing, making moving contact and fixed contact slide the change of necessary actuating force greatly, if do not improve the spring constant of tension spring to a certain extent, being then difficult to the stability guaranteeing action.Consequently, the hook portion of tension spring and each drive member is easy to produce wearing and tearing.
Summary of the invention
In order to solve above-mentioned problem in the past, the object of the present invention is to provide a kind of switching device, it can realize stable action, and, the reliability of energising can be improved via pulling force helical spring.
In addition, the object of the present invention is to provide a kind of switching device, be set as and effectively can transmit action force when carrying out pressing operation to operating body, improve the reliability of action and reduce operating duty.
The invention provides a kind of switching device, it is characterized in that, have: the matrix formed by insulating material, be fixed on multiple fixed conductors of described matrix, integrated with described matrix and form multiple fixed contacts of sliding part, switch movable part, support multiple moving contact, this moving contact sliding part described in each slides, and carried out the operation conductor plate of action by operating body, in above-mentioned switching device, the independent conductor plate that described switching movable part is fixed with fulcrum conductor plate and is separated with described fulcrum conductor plate on movable insulator, and, described fulcrum conductor plate and described independent conductor plate are respectively equipped with described moving contact, using the abutting part of described fixed conductor of described fulcrum conductor plate and a part as the first fulcrum, described switching movable part is rotatably supported, abutting part with fixed conductor described in other is rotatably supported as the second fulcrum by the base portion of described operation conductor plate, described first fulcrum and described second fulcrum are configured at the position mutually left, the front portion of described operation conductor plate is positioned at described first fulcrum side, described toe lateral can be carried out pressing operation by described operating body, be provided with the multiple pulling force helical springs extended along described first fulcrum and the opposed direction of described second fulcrum, the end hook of the helical spring side of pulling force described in each is hung on the described toe lateral of described operation conductor plate, the end hook of the opposing party is hung on described independent conductor plate, when making described operation conductor plate be swung by described operating body, with its wobbling action, described switching movable part carries out snap-action action by the helical spring active force of multiple described pulling force, and described moving contact slides at described sliding part, described operation conductor plate and described independent conductor plate are switched on via multiple described pulling force helical spring.
Because switching device of the present invention hangs with multiple pulling force helical spring, therefore, it is possible to make action force be shared by multiple pulling force helical spring between the independent conductor plate be arranged on switching movable part and operation conductor plate.Therefore, the helical spring spring constant of each pulling force can be reduced, and can reduce in the hook portion of pulling force helical spring and independent conductor plate and the load that produces with the hooking in the hook portion of operation conductor plate at pulling force helical spring, the wearing and tearing in hook portion can be reduced.Therefore, it is possible to stably form multiple energising paths side by side by pulling force helical spring.
In switching device of the present invention, the abutting part of described sliding part and described moving contact is configured at spaced intervals on the direction orthogonal with the direction that the helical spring center line of described pulling force extends, and the helical spring center line of each pulling force is between adjacent described sliding part.
Such as, in switching device of the present invention, at described switching movable part, described fulcrum conductor plate is configured at the both sides of described independent conductor plate respectively, and described pulling force helical spring is configured between described fulcrum conductor plate.
In the above-described configuration, between multiple abutting parts that pulling force helical spring swings at moving contact and sliding part the application point of the actuating force that independent conductor plate is given, the application point of load and the helical spring active force of pulling force configuring described abutting part well can be balanced.Consequently, this switching movable part action can be made to make the stable posture of switching movable part, whole moving contact can be made simultaneously to slide relative to sliding part.
Switching device of the present invention is preferably, the abutting portion of described moving contact and described sliding part is between hook portion (D1) and described first fulcrum (S1), and this hook portion (D1) is the hook portion between described pulling force helical spring and described independent conductor plate.
And then, switching device of the present invention is preferably, longer than the distance (Lb) from the hook portion (D1) described pulling force helical spring and described independent conductor plate to the first fulcrum (S1) to the distance (La) of described second fulcrum (S2) from the hook portion (D2) between described pulling force helical spring and described operation conductor plate.
In the switching device of above-mentioned formation, the action of operation conductor plate can be made with lighter load, and the transmission efficiency of power when making switching movable part carry out action with pulling force helical spring becomes good, can make the rapid action of moving contact.
In addition, switching device of the present invention is preferably, described independent conductor plate at one end portion is formed with the helical spring hook hole of pulling force described in hook, and in the other end, there is retention tab, the direction that described retention tab is intersected in the direction acted on the helical spring pulling force of described pulling force extends, and described retention tab is embedded in described movable insulator.
In the switching device of above-mentioned formation, all the time to the helical spring pulling force of independent conductor plate effect many pulling force, but because the retention tab that the direction that intersects in the direction acted on this pulling force extends is embedded in movable insulator, therefore, be not easy to produce the bad phenomenon as independent conductor plate departs from movable insulator.
Invention effect
Switching device of the present invention, by using multiple pulling force helical spring, can make this switching movable part action to make the stable posture of switching movable part, can improve with the reliability of the energising path arranged side by side of multiple pulling force helical spring formation.
In addition, switching device of the present invention can pass through pulling force helical spring, makes multiple moving contact rapidly and stably action, and then, the service load when carrying out pressing operation to operating body can be reduced.
Accompanying drawing explanation
Fig. 1 is the stereogram of the outward appearance representing 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 representing switching device.
Fig. 4 is the exploded perspective view of the conductive part only representing the main actions portion shown in Fig. 3.
Fig. 5 is the end view of the state of the non-external force action representing the main actions portion shown in Fig. 3.
Fig. 6 (A) is the end view of removing pedestal and movable insulator, and which show the state of non-external force action, Fig. 6 (B) is the schematic diagram of the action in each portion represented now.
Fig. 7 (A) is removing pedestal and the end view of movable insulator, which show operating body and is pressed state in way, and Fig. 7 (B) is the schematic diagram of the action in each portion now.
Fig. 8 (A) is the end view of removing pedestal and movable insulator, and which show the timing that contact is switched, Fig. 8 (B) is the schematic diagram of the action in each portion represented now.
Fig. 9 (A) is removing pedestal and the end view of movable insulator, and which show operating body by the state after pressing completely, Fig. 9 (B) is the schematic diagram of the action in each portion represented now.
Figure 10 is the key diagram of the formation of the commutation circuit of the switching device representing form of implementation.
Symbol description
1 switching device
2 shells
3 lids
10a, 10b side matrix
10c central authorities matrix
11a, 11b first fixed conductor
12a, 12b second fixed conductor
13a, 13b, 15a top fixed contact
14a, 14b, 16a bottom fixed contact
17a, 17b side sliding part
17c central authorities sliding part
20 switch movable part
21,22 fulcrum conductor plates
21a, 22a movable end
23 independent conductor plates
24,25 side moving contacts
26 central movable contacts
27 movable insulators
27a, 27b first point supporting portion
30 operation conductor plates
31a, 31b movable end
33 operating sheets
35a, 35b second point supporting portion
41,42 pulling force helical springs
50 operating bodies
S1 first fulcrum
S2 second fulcrum
D1 first active force application point
D2 second active force application point
Embodiment
Fig. 1 is the overall perspective view of the switching device 1 of the invention process form, and Fig. 2 is its exploded perspective view.In addition, lid 3 is eliminated in fig. 2.
Switching device 1 is the device simultaneously switching multiple contact, such as, need the electronic circuit of high reliability for vehicle etc.
The structure > of < switching device
As depicted in figs. 1 and 2, switching device 1 has shell 2 and lid 3.Shell 2 is formed by the synthetic resin material of insulating properties, and it is have 2a and four the side plate 2b in bottom and the rectangular shape of upper opening.Lid 3 is formed by the synthetic resin material of insulating properties, and the peristome of its closure 2 is also fixed on described shell 2 by methods such as welding.
Fig. 3 and Fig. 4 represents the main actions portion of switching device 1.Illustrate only forming of the energising path formed by conductive metal plate in the main actions portion shown in Fig. 3 in the diagram.In addition, the circuit diagram of the commutation circuit be made up of each energising path is illustrated in Fig. 10.
On the bottom 2a of the shell 2 shown in Fig. 2, form peristome 2c at three places, be fixed with side matrix 10a, 10b and central matrix 10c at each peristome 2c.Matrix 10a, 10b, 10c are formed by the synthetic resin material of insulating properties.
As shown in Figure 2, Figure 3, Figure 4, side matrix 10a keeps the first fixed conductor 11a, another side matrix 10b keeps the first fixed conductor 11b.First fixed conductor 11a is formed with portion of terminal 11c, portion of terminal 11c from side matrix 10a to the left a side stretch out.First fixed conductor 11b is also integrally formed portion of terminal 11d, portion of terminal 11d from side matrix 10b to the right a side stretch out.
On the matrix 10a of side, maintain the second fixed conductor 12a in the position spaced apart with the first fixed conductor 11a, with second fixed conductor 12a one portion of terminal 12c from side matrix 10a to the left a side stretch out.Equally, side matrix 10b also maintains the second fixed conductor 12b, with second fixed conductor 12b one portion of terminal 12d from side matrix 10b to the right a side stretch out.
On the matrix 10a of side, maintain top fixed contact 13a and bottom fixed contact 14a in mode spaced apart up and down.Top fixed contact 13a is integrally formed portion of terminal 13c, bottom fixed contact 14a is integrally formed portion of terminal 14c.Portion of terminal 13c, 14c from side matrix 10a to the left a side stretch out.Side matrix 10b maintains top fixed contact 13b and bottom fixed contact 14b.Top fixed contact 13b is integrally formed portion of terminal 13d, bottom fixed contact 14b is integrally formed portion of terminal 14d.Portion of terminal 13d, 14d from side matrix 10b to the right a side stretch out.In addition, in figs. 3 and 4, and portion of terminal 14d that is not shown and bottom fixed contact 14b one, show portion of terminal 14d in the circuit diagram of figure 10.
Central matrix 10c maintains top fixed contact 15a and bottom fixed contact 16a.Top fixed contact 15a is integrally formed portion of terminal 15b, and portion of terminal 15b stretches out from central matrix 10c to nearby side.Bottom fixed contact 16a is integrally formed portion of terminal 16b, portion of terminal 16b from central matrix 10c inwards side to stretching out.
In the manufacture method of switching device 1, first, fixed conductor 11a, 12a, top fixed contact 13a and bottom fixed contact 14a to be configured in mould and to penetrate molten resin in mould, forming side matrix 10a by so-called insert-molding method.Thus, make fixed conductor 11a, 12a, top fixed contact 13a and bottom fixed contact 14a integrated with side matrix 10a.Equally, insert-molding method is utilized to form side matrix 10b conductor 11b, 12b, top fixed contact 13b and bottom fixed contact 14b fixed integratedly, in addition, insert-molding method is utilized to be formed central matrix 10c fixing for top fixed contact 15a and bottom fixed contact 16a one.Thereafter, matrix 10a, 10b, 10c of fixed conductor and fixed contact being secured are arranged in mould, in mould, penetrate molten resin, utilize so-called dual-color forming method to form shell 2.Therefore, matrix 10a, 10b, 10c is integrally fixed with at the three place peristome 2c of the bottom 2a of shell 2.In addition, the formation comprising the bottom 2a after integration and matrix 10a, 10b, 10c is called pedestal.
As shown in Figure 3, intermediate insulation portion 10d is situated between and is between top fixed contact 13a and bottom fixed contact 14a, this intermediate insulation portion 10d utilizes the synthetic resin material of insulating properties and side matrix 10a to be integrally formed, and forms side sliding part 17a by top fixed contact 13a, bottom fixed contact 14a and intermediate insulation portion 10d.On the sliding part 17a of side, be formed with top fixed contact 13a, bottom fixed contact 14a and intermediate insulation portion 10d with identical width dimensions.Equally, on the matrix 10b of side, form side sliding part 17b by top fixed contact 13b, bottom fixed contact 14b and intermediate insulation portion 10e.In addition, on central matrix 10c, central sliding part 17c is formed by top fixed contact 15a, bottom fixed contact 16a and intermediate insulation portion 10f.
As shown in Figures 2 and 3, switching movable part 20 is provided with in main actions portion.Switch movable part 20 and there is a pair fulcrum conductor plate 21,22 and the independent conductor plate 23 between two fulcrum conductor plates 21,22.Three conductor plates 21,22,23 are formed by the metallic plate of conductivity, and remain on respectively on movable insulator 27.In the manufacturing process switching movable part 20, three conductor plates 21,22,23 to be arranged in mould and to penetrate molten resin in mould, forming movable insulator 27 by insert-molding method.Therefore, a pair fulcrum conductor plate 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, be formed with movable end 21a illustrating nearby side, on fulcrum conductor plate 22, be formed with movable end 22a illustrating nearby side.Be formed with the first point supporting portion 27a being held on the first fixed conductor 11a on described side matrix 10a, be formed with the first point supporting portion 27b being held on the first fixed conductor 11b on the matrix 10b of side.Movable end 21a is by the first point supporting portion 27a hook, movable end 22a is by the first point supporting portion 27b hook, using the abutting part of movable end 21a, 22a and first point supporting portion 27a, 27b as the first fulcrum, switching movable part 20 is supported and moves freely for swinging up and down.
As shown in Figure 4, side moving contact 24 is fixed on the lower surface of the free end side of fulcrum conductor plate 21.Side moving contact 24 by can the conductive metal plate of strain be formed, and conducts with fulcrum conductor plate 21.On side moving contact 24, left and right is provided with a pair clamping slide 24a, 24a opposedly, and the side sliding part 17a shown in Fig. 3 clips by clamping slide 24a, 24a.Equally, side moving contact 25 is fixed with at the lower surface of the free end side of fulcrum conductor plate 22 with conduction mode.Side moving contact 25 is provided with a pair clamping slide 25a, 25a, and side sliding part 17b clips by clamping slide 25a, 25a.Equally, central movable contact 26 is fixed with at the lower surface of independent conductor plate 23 with conduction mode.Central movable contact 26 is provided with a pair clamping slide 26a, 26a, and central sliding part 17c clips 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, be provided with operation conductor plate 30.Operation conductor plate 30 is formed by the metallic plate of conductivity.The base portion side as an end of operation conductor plate 30 forms a pair movable end 31a, 31b.As shown in Figure 3 and Figure 4, form the second point supporting portion 35a being held on the second fixed conductor 12a on the matrix 10a of side, the second fixed conductor 12b being held in side matrix 10b is formed the second point supporting portion 35b.Movable end 31a is by the second point supporting portion 35a hook, movable end 31b is by the second point supporting portion 35b hook, using the abutting part of movable end 31a, 31b and second point supporting portion 35a, 35b as the second fulcrum, operation conductor plate 30 is supported into vertically wobbling action freely.
Second fulcrum configuration of the first fulcrum as the abutting part of movable end 21a, 22a and first point supporting portion 27a, 27b and the abutting part as movable end 31a, 31b and second point supporting portion 35a, 35b is the position left, left and right in Figure 5, and the free end of the free end and operation conductor plate 30 that switch movable part 20 reciprocally stretches out along contrary direction.That is, the first fulcrum and the second fulcrum are configured in the position mutually left on the extended direction (length direction) of matrix 10a, 10b, 10c.
As shown in Figure 3, switching the free end side of movable part 20, there are a pair hook hole 23a, 23b in an end upper shed of independent conductor plate 23, have a pair hook hole 32a, 32b in the free end side upper shed as the other end of operation conductor plate 30.Main actions portion arranges a pair pulling force helical spring 41,42.A hook portion 41a of pulling force helical spring 41 hangs over hook hole 23a, and another hook portion 41b hangs over hook hole 32a.The hook portion 42a of one side of pulling force helical spring 42 hangs over hook hole 23b, and the hook portion 42b of the opposing party hangs over hook hole 32b.
Pulling force helical spring 41,42 is formed by the spring wire of conductivity, utilize this pulling force helical spring 41,42 free end side of traction switching movable part 20 and free end side of operation conductor plate 30 mutually, and by pulling force helical spring 41,42, independent conductor plate 23 and operation conductor plate 30 conduct.
Be positioned at the front portion of the free end side as the other end operating conductor plate 30, operating sheet 33 is bent.As shown in Figure 1, lid 3 forms sliding eye 3a, operating body 50 is supported on sliding eye 3a sliding freely.Precisely, operating body 50 is bearing in the mode that can move up and down on the unshowned guide part that is arranged in shell 2.As shown in Figure 5, in the inside of shell 2, be formed with press section 51 in the bottom of operating body 50, if to the inside push body 50 of shell 2, then by press section 51 pressing operation sheet 33 downwards.
As shown in Figure 4, on the other end being arranged at the independent conductor plate 23 switched on movable part 20, the direction (orthogonal direction) intersected with the direction that the pulling force of pulling force helical spring 41,42 acts on is formed with retention tab 23c, 23d.As shown in Figure 3, retention tab 23c, 23d are buried underground and remains in movable insulator 27, and the front portion of this retention tab 23c, 23d is given prominence to the left and right from movable insulator 27.Although the pulling force of pulling force helical spring 41,42 acts on independent conductor plate 23 all the time, due to retention tab 23c, 23d are remained in movable insulator 27, so be not easy to produce the bad phenomenon as independent conductor plate 23 departs from movable insulator 27.
< assembling operation >
The assembling operation of switching device 1 is described.
Side matrix 10a, 10b shown in Fig. 2 and Fig. 5 and central matrix 10c utilizes dual-color forming method to be integrally fixed on the bottom 2a of shell 2.
The operation conductor plate 30 connected by pulling force helical spring 41,42 and switching movable part 20 are assembled in the inside of shell 2.Now, movable end 31a, 31b of operation conductor plate 30 are by second point supporting portion 35a, 35b hook, and described second point supporting portion 35a, 35b is formed on second fixed conductor 12a, 12b of bottom 2a (pedestal) side being positioned at shell 2.In addition, switch movable end 21a, 22a of the fulcrum conductor plate 21,22 of movable part 20 by first point supporting portion 27a, 27b hook, this first point supporting portion 27a, 27b are formed on first fixed conductor 11a, 11b.
If the operation conductor plate 30 connected by pulling force helical spring 41,42 and switching movable part 20 are assembled in the inside of shell 2, then as shown in Figure 5, by the pulling force of pulling force helical spring 41,42, operation conductor plate 30 will counterclockwise (α 1 direction) takeoff, switching movable part 20 clockwise (β 1 direction) takeoff.But in operation conductor plate 30, by being abutted with the unshowned limiter portion on the bottom 2a being formed in shell 2 by the margining tablet 37 bent downwards in fulcrum side, restriction operation conductor plate 30 counterclockwise (α 1 direction) takeoffs.In addition, the restriction teat 28 outstanding downwards from movable insulator 27 contacts with the limiter portion 10g be formed in side matrix 10a, 10b, and restriction switching movable part 20 clockwise (β 1 direction) takeoffs.
Therefore, under the state that operation conductor plate 30 and switching movable part 20 are assembled in shell 2 inside, operation operating body 50 and lid 3 are assembled in shell 2 can easily be carried out.
< action specification >
Below, the action of switching device 1 is described.
Fig. 6 (A) is being in the main actions portion under the free state that operating physical force do not act on operating body 50, remove the end view after pedestal (matrix 10a, 10b, 10c and bottom 2a) and movable insulator 27, Fig. 6 (B) is the schematic diagram of the action in each portion represented in a free state.
In Fig. 6 to Fig. 9, the abutting part of first point supporting portion 27a, the 27b being formed in movable end 21a, the 22a on fulcrum conductor plate 21,22 and being formed on first fixed conductor 11a, 11b is expressed as the first fulcrum S1, and the abutting part being formed in movable end 31a, the 31b operated on conductor plate 30 and second point supporting portion 35a, the 35b be formed on second fixed conductor 12a, 12b is expressed as the second fulcrum S2.In addition, hook portion 41a, the 42a of pulling force helical spring 41,42 and the hook portion being arranged on the independent conductor plate 23 switched on movable part 20 are expressed as the first active force application point D1, and the hook portion of hook portion 41b, the 42b of pulling force helical spring 41,42 and the free end of operation conductor plate 30 is expressed as the second active force application point D2.
Under the free state shown in Fig. 6 (A) (B), it is closer to the top that the position of the directed force F 2a of the directed force F 1a acting on the pulling force helical spring 41,42 of the first active force application point D1 and the pulling force helical spring 41,42 acting on the second active force application point D2 is positioned at than the first fulcrum S1.Therefore, operation conductor plate 30 is (α 1 direction) rotation counterclockwise centered by the second fulcrum S2, switches movable part 20 (β 1 direction) rotation clockwise centered by the first fulcrum S1.In addition, abutted with the end face of lid 3 by the part on the left of the diagram of switching movable part 20, restriction switches movable part 20 described rotation clockwise thus.
Therefore, the clamping slide 24a being arranged on the side moving contact 24 switched on movable part 20 contacts with top fixed contact 13a at side sliding part 17a.Equally, the clamping slide 25a of side moving contact 25 contacts with top fixed contact 13b at side sliding part 17b.In addition, the clamping slide 26a of central movable contact 26 is in central sliding part 17c and top fixed contact 15a conducting.
The conducting state of the circuit of switching device 1 now as shown in Figure 10.
(1) first fixed conductor 11a is via the hook portion of the first point supporting portion 27a and movable end 21a, fulcrum conduction panel 21 and side moving contact 24, and with top fixed contact 13a conducting, portion of terminal 11c and portion of terminal 13c is in conducting state.
(2) first fixed conductor 11b are via the hook portion of the first point supporting portion 27b and movable end 22a, fulcrum conductor plate 22 and side moving contact 25, and with top fixed contact 13b conducting, portion of terminal 11d and portion of terminal 13d is in conducting state.
(3) second fixed conductor 12a, 12b via the hook portion of second point supporting portion 35a, 35b and movable end 31a, 31b, operation conductor plate 30, two pulling force helical springs 41,42, independent conductor plate 23 and central movable contact 26, with top fixed contact 15a conducting.Therefore, portion of terminal 12c, portion of terminal 12d and portion of terminal 15b are in mutual conduction state.
Fig. 7 (A) is the removing pedestal under the midvoyage condition of pressing operation body 50 and the end view after movable insulator 27, and Fig. 7 (B) is the schematic diagram of the action in each portion represented under on the way state.Fig. 8 (A) is the removing pedestal when contact has been switched and the end view after movable insulator 27, and Fig. 8 (B) is the schematic diagram of the action in each portion represented when contact has been switched.
If act on downward operating physical force P on operating body 50, operating body 50 is depressed to the position of Fig. 7 (A) towards the inside of shell 2, then operate conductor plate 30 (α 2 direction) rotation clockwise, as shown in Fig. 7 (B), the second active force application point D2 is more than the first fulcrum S1 and to than the first fulcrum S1, more downside is mobile.Owing to connecting the active force position of the first active force application point D1 and the second active force application point D2 to more downside is mobile than the first fulcrum S1, therefore, start in the moment switching effect counter clockwise direction (β 2 direction) on movable part 20 at this time point.
And then, if operating body 50 to be pressed to the position of regulation, be greater than to switching the moment of counter clockwise direction (β 2 direction) that movable part 20 gives the resistance torque produced by the stiction of each moving contact 24,25,26 and top fixed contact 13a, 13b, 15a from pulling force helical spring 41,42, then as shown in Fig. 8 (A) (B), switch (the β 2 direction) rotation counterclockwise of movable part 20 moment.That is, switch movable part 20 and carry out snap-action action by the active force of pulling force helical spring 41,42.Now, the clamping slide 24a of side moving contact 24 slides at side sliding part 17a and contacts with bottom fixed contact 14a, and meanwhile, the clamping slide 25a of side moving contact 25 slides at side sliding part 17b and contacts with bottom fixed contact 14b.And then the clamping slide 26a of central movable contact 26 slides at central sliding part 17c and contacts with bottom fixed contact 16a.
Consequently, in whole sliding part 17a, 17b, 17c double-throw contacts at three places, in the circuit diagram shown in Figure 10, portion of terminal 11c and portion of terminal 14c becomes conducting state, and portion of terminal 11d and portion of terminal 14d becomes conducting state.In addition, portion of terminal 12c, 12d and portion of terminal 16b become conducting state.
Fig. 9 (A) is the removing pedestal under the state that operating body 50 is pressed to action dead point and the end view after movable insulator 27, and Fig. 9 (B) is the schematic diagram of the action in each portion represented now.At the time point of Fig. 9 (A) (B), the moment acting on β 2 direction switching movable part 20 reaches maximum.Therefore, during position operating body 50 being pressed to Fig. 9 (A) (B), switch movable part 20 and reliably rotate with double-throw contact.
In Fig. 9 (A) (B), switch movable part 20 and turn to approximate horizontal attitude, and contact with the limiter portion be arranged on shell 2 and can not (β 2 direction) rotate further counterclockwise.Now, position quite far away is left downwards than the first fulcrum S1 because the second active force application point D2 moves to, so utilize the pulling force (F1b, F2b or F1c, F2c) of pulling force helical spring 41,42, operation conductor plate 30 is acted on to the large moment in counterclockwise (α 1 direction).Therefore, if the operating physical force P on operating body 50 is given in removing, then operate conductor plate 30 (α 1 direction) rotation counterclockwise centered by the second fulcrum S2.
If operation conductor plate 30 is in the way returning the initial attitude as shown in Fig. 6 (A) (B), utilize pulling force helical spring 41, the active force of 42 is greater than by each moving contact 24 to the moment switching the clockwise direction (β 1 direction) that movable part 20 is given, 25, 26 and bottom fixed contact 14a, 14b, the resistance torque that the stiction of 16a produces, then switch (β 1) rotation clockwise of movable part 20 moment, each moving contact 24, 25, 26 with top fixed contact 13a, 13b, 15a contacts, circuit returns to the initial condition shown in Figure 10.
The action effect > that < form of implementation plays
In above-mentioned form of implementation, be arranged on the independent conductor plate 23 switched on movable part 20 and linked by two pulling force helical springs 41,42 with operation conductor plate 30.Shared, so the helical spring spring constant of each pulling force can not be made excessive by many (being two in form of implementation) pulling force helical springs for mutually drawing the active force switching the free end of movable part 20 and the free end of independent conductor plate 23.Therefore, the fricative load by the fricative load in the hook portion of hook portion 41a, 42a and hook hole 23a, 23b and the hook portion by hook portion 41b, 42b and hook hole 32a, 32b can be reduced, be not easy the wearing and tearing of each contact site producing hook portion and hook hole, thus stable state can be set as by using the energising path of pulling force helical spring 41,42.
In addition, as shown in the circuit diagram of Figure 10, owing to being provided with the pulling force helical spring 41,42 as electric conductor between operation conductor plate 30 and independent conductor plate 23 abreast, so D.C. resistance when being used as energising path by pulling force helical spring 41,42 can also be reduced.
And then the application point carrying out the active force acted on from two pulling force helical springs 41,42 to independent conductor plate 23 is configured in impartial position relative to the center switching movable part 20 by left and right.And then, two pulling force helical springs 41,42 are configured between a pair fulcrum conductor plate 22,22 of the left and right sides.Therefore, switch movable part 20 and be not easy to produce twisting action, centered by the first fulcrum S1, rotational action can be carried out with stable posture.
In addition, the center line of the pulling force helical spring 41 of a side is between side moving contact 24 and central movable contact 26, and the center line of the pulling force helical spring 42 of the opposing party is between side moving contact 25 and central movable contact 26.Although switch movable part 20 utilize the elastic force of pulling force helical spring 41,42 and rotate, but, because the position of the active force of pulling force helical spring 41,42 is between adjacent moving contact, so can give to each moving contact the power making each moving contact 24,25,26 and each fixed contact slide equably, the switching action of multiple contact can be made to stablize.
As shown in Fig. 8 (B), if with switch movable part 20 from the first fulcrum S1 to the distance of the first active force application point D1 for L1, with from the first fulcrum S1 to the distance of clamping slide 24a, 25a, 26a of each moving contact 24,25,26 for L2, then L1 longer than L2 (L1 > L2).That is, slide 24a, 25a, 26a is clamped between the first fulcrum S1 and the first active force application point D1.Therefore, relative to the actuating force acted on the first active force application point D1, can make to clamping slide 24a, 25a, 26a act on action force increase L1/L2 doubly, such as under the state of Fig. 8 (A) (B), can switching movable part 20 be reliably made to rotate counterclockwise.
As shown in Fig. 6 (B), the length La of the second fulcrum S2 to the second active force application point D2 of operation conductor plate 30 is than switching the first fulcrum S1 of movable part 20 and the distance Lb long enough of the first active force application point D1.Therefore, under the free state shown in Fig. 6 (B), operation conductor plate 30 can be made less relative to the rotational angle θ 2 of horizontal direction.Therefore, even if when making switching movable part 20 rotate with larger angle θ 1 and increase the sliding distance of clamping slide 24a, 25a, 26a, also can the operating angle θ 2 of reduction operation conductor plate 30.Therefore, it is possible to when pressing operation body 50, make from the reaction force that is subject to of operation conductor plate 30 less, action sense of touch is good.
Claims (8)
1. a switching device, is characterized in that, has: the matrix formed by insulating material; Be fixed on multiple fixed conductors of described matrix; Integrated with described matrix and form multiple fixed contacts of sliding part; Switch movable part, support multiple moving contact, this moving contact sliding part described in each slides; And carried out the operation conductor plate of action by operating body,
In above-mentioned switching device,
The independent conductor plate that described switching movable part is fixed with fulcrum conductor plate and is separated with described fulcrum conductor plate on movable insulator, and, described fulcrum conductor plate and described independent conductor plate are respectively equipped with described moving contact,
Using the abutting part of described fixed conductor of described fulcrum conductor plate and a part as the first fulcrum, described switching movable part is rotatably supported, abutting part with fixed conductor described in other is rotatably supported as the second fulcrum by the base portion of described operation conductor plate, described first fulcrum and described second fulcrum are configured at the position mutually left, the front portion of described operation conductor plate is positioned at described first fulcrum side, described toe lateral can be carried out pressing operation by described operating body
Be provided with the multiple pulling force helical springs extended along described first fulcrum and the opposed direction of described second fulcrum, the end hook of the helical spring side of pulling force described in each is hung on the described toe lateral of described operation conductor plate, the end hook of the opposing party is hung on described independent conductor plate, when making described operation conductor plate be swung by described operating body, with its wobbling action, described switching movable part carries out snap-action action by the helical spring active force of multiple described pulling force, and described moving contact slides at described sliding part
Described operation conductor plate and described independent conductor plate are switched on via multiple described pulling force helical spring.
2. switching device according to claim 1, is characterized in that,
The abutting part of described sliding part and described moving contact is configured at spaced intervals on the direction orthogonal with the direction that the helical spring center line of described pulling force extends, and the helical spring center line of each pulling force is between adjacent described sliding part.
3. switching device according to claim 1, is characterized in that,
At described switching movable part, described fulcrum conductor plate is configured at the both sides of described independent conductor plate respectively, and described pulling force helical spring is configured between described fulcrum conductor plate.
4. switching device according to claim 2, is characterized in that,
At described switching movable part, described fulcrum conductor plate is configured at the both sides of described independent conductor plate respectively, and described pulling force helical spring is configured between described fulcrum conductor plate.
5. the switching device according to any one of Claims 1 to 4, is characterized in that,
The abutting portion of described moving contact and described sliding part is between hook portion (D1) and described first fulcrum (S1), and this hook portion (D1) is the hook portion between described pulling force helical spring and described independent conductor plate.
6. switching device according to claim 5, is characterized in that,
Longer than the distance (Lb) from the hook portion (D1) described pulling force helical spring and described independent conductor plate to the first fulcrum (S1) to the distance (La) of described second fulcrum (S2) from the hook portion (D2) between described pulling force helical spring and described operation conductor plate.
7. the switching device according to any one of Claims 1 to 4, is characterized in that,
Described independent conductor plate at one end portion is formed with the helical spring hook hole of pulling force described in hook, and in the other end, there is retention tab, the direction that described retention tab is intersected in the direction acted on the helical spring pulling force of described pulling force extends, and described retention tab is embedded in described movable insulator.
8. switching device according to claim 6, is characterized in that,
Described independent conductor plate at one end portion is formed with the helical spring hook hole of pulling force described in hook, and in the other end, there is retention tab, the direction that described retention tab is intersected in the direction acted on the helical spring pulling force of described pulling force extends, and described retention tab is embedded in described 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 true CN105405697A (en) | 2016-03-16 |
| CN105405697B CN105405697B (en) | 2017-10-27 |
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| 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) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021261357A1 (en) | 2020-06-24 | 2021-12-30 | アルプスアルパイン株式会社 | Changeover switch |
| JP7548640B2 (en) | 2021-12-15 | 2024-09-10 | アルプスアルパイン株式会社 | Movable unit, changeover switch, and manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008105186A1 (en) * | 2007-02-27 | 2008-09-04 | Hst Co., Ltd. | Switch |
| CN102144271A (en) * | 2008-09-22 | 2011-08-03 | 阿尔卑斯电气株式会社 | Switch device and method of assembling snap action mechanism |
| CN102420062A (en) * | 2010-09-17 | 2012-04-18 | 阿尔卑斯电气株式会社 | Switch device |
| CN102576615A (en) * | 2010-10-12 | 2012-07-11 | 欧姆龙株式会社 | Switch |
Family Cites Families (1)
| 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 |
-
2014
- 2014-09-10 JP JP2014184398A patent/JP6282202B2/en active Active
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2015
- 2015-09-09 EP EP15184441.2A patent/EP2996127B1/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008105186A1 (en) * | 2007-02-27 | 2008-09-04 | Hst Co., Ltd. | Switch |
| CN102144271A (en) * | 2008-09-22 | 2011-08-03 | 阿尔卑斯电气株式会社 | Switch device and method of assembling snap action mechanism |
| CN102420062A (en) * | 2010-09-17 | 2012-04-18 | 阿尔卑斯电气株式会社 | Switch device |
| CN102576615A (en) * | 2010-10-12 | 2012-07-11 | 欧姆龙株式会社 | Switch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2996127A1 (en) | 2016-03-16 |
| JP2016058271A (en) | 2016-04-21 |
| EP2996127B1 (en) | 2017-02-22 |
| CN105405697B (en) | 2017-10-27 |
| JP6282202B2 (en) | 2018-02-21 |
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