CN204303684U - Thermorelay there is the actuating mechanism that elasticity touches bridge - Google Patents
Thermorelay there is the actuating mechanism that elasticity touches bridge Download PDFInfo
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- CN204303684U CN204303684U CN201420639273.6U CN201420639273U CN204303684U CN 204303684 U CN204303684 U CN 204303684U CN 201420639273 U CN201420639273 U CN 201420639273U CN 204303684 U CN204303684 U CN 204303684U
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- closed interlock
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Abstract
Thermorelay there is the actuating mechanism that elasticity touches bridge, comprise normally open contact system and normally closed interlock system; Normally open contact system comprises the first normally open contact touch panel of improvement, the normally open contact of the second normally open contact touch panel and improvement touches bridge; The lower end of the first normally open contact touch panel improved is provided with bending, and bending is provided with riveted joint boss; The normally open contact improved touches bridge for the resilient foil of conduction, the normally open contact improved touches bridge and is provided with protruding contact two, protruding contact two is corresponding with the contact position of the second normally open contact touch panel, the normally open contact improved touches bridge and is provided with thrust boss, the lower end that the normally open contact improved touches bridge is provided with riveted holes two, and riveted joint boss and riveted holes two are riveted; Normally closed interlock system is similar to normally open contact system.It uses in the actuating mechanism of thermorelay signal output with bimetal leaf.After thermorelay can be avoided to be impacted or vibrate in transport and storage process, deviating from fixed position because touching bridge, causing the defect that product damages in a large number.
Description
Technical field
The utility model relates to a kind of equipment for electric switch, is specifically related to the improvement of the actuating mechanism to the thermorelay with bimetal leaf, and what particularly relate to a kind of thermorelay has the actuating mechanism that elasticity touches bridge.
Background technology
The thermorelay with bimetal leaf is mainly used in low-voltage circuit, as the overload of ac motor and the use of open-phase protection.There is the structure of the thermorelay of bimetal leaf as shown in Figure 1: be made up of actuating mechanism A, differential attachment B, housing C and bimetallic element D.Bimetallic element is for extracting current signal; Actuating mechanism is used for switching signal and exports; actuating mechanism coordinates bimetallic element; when bimetallic element displacement signal exceedes the critical localisation of design; trigger action mechanism; defeated out of order on-off model; the usual control contactor of switch or circuit breaker trip circuit reach the object of protection motor, are also usually used as alarm signal and export or the control of other relay protective scheme.Electric current makes bimetal leaf generate heat and flexural deformation in circuit, and produce displacement, the trigger action mechanism when displacement exceedes critical value, actuating mechanism output switch amount guard signal, controls other switch disconnecting circuits or report to the police, and reaches the object of protection motor.
Actuating mechanism before improvement is the mechanical motion mechanism of a large amount of use in thermorelay product on market, the lower end clamping wedge angle that the normally closed interlock of normally closed interlock touches bridge is positioned at the V-shaped groove of normally closed interlock touch panel, closure state is under the pulling force and the effect of normally closed interlock touch panel of spring, spring one end is articulated in normally closed interlock and touches bridge, and one end is articulated in normally closed interlock touch panel.When mechanism is triggered action, when push rod is moved beyond normally closed interlock touch panel, normally closed interlock is opened by push rod.The structure of normally open contact is similar to normally closed interlock.Because clamping wedge angle and V-shaped groove are all very little, in order to the sensitivity of safety action mechanism, downward spring tension can not be large, this structure touches bridge lower end wedge angle when being subject to strong impact or vibration is easily deviate from the V-shaped groove touch panel, and can not original position be automatically restored to, because product completes production, this fault mainly occurs in storage and transportation, therefore user and user also cannot repair, and cause a large amount of loss.Anti-vibration or impact capacity difference are the disadvantage of this structure, and structure is also complicated in addition.
Summary of the invention
In view of the above-mentioned defect that the actuating mechanism of existing thermorelay exists, the technical problems to be solved in the utility model is to provide a kind of anti-vibration and impact capacity is good, the simple thermorelay of structure there is the actuating mechanism that elasticity touches bridge.This actuating mechanism can prevent contingent vibration or impact from causing contact system to be paralysed.
It is as follows that the utility model solves the problems of the technologies described above the technical scheme taked, a kind of thermorelay there is the actuating mechanism that elasticity touches bridge, comprise normally closed interlock system and normally open contact system; It is characterized in that: normally open contact system comprises the first normally open contact touch panel of improvement, the normally open contact of the second normally open contact touch panel and improvement touches bridge; The lower end of the first normally open contact touch panel improved is provided with bending, and bending is provided with riveted joint boss; The normally open contact improved touches bridge for the resilient foil of conduction, the normally open contact improved touches bridge and is provided with protruding contact two, protruding contact two is corresponding with the contact position of the second normally open contact touch panel, the normally open contact improved touches bridge and is provided with thrust boss, the lower end that the normally open contact improved touches bridge is provided with riveted holes two, and riveted joint boss and riveted holes two are riveted; Normally closed interlock system comprises the first normally closed interlock touch panel, the second normally closed interlock touch panel of improvement and the normally closed interlock of improvement and touches bridge; The lower end of the second normally closed interlock touch panel improved is provided with bending, and bending is provided with riveted joint boss; The normally closed interlock improved touches bridge for the resilient foil of conduction, the normally closed interlock improved touches bridge and is provided with protruding contact one, the contact of protruding contact one and the first normally closed interlock touch panel touches, the normally closed interlock improved touches bridge and is provided with thrust boss, the lower end that the normally closed interlock improved touches bridge is provided with riveted holes one, and riveted joint boss and riveted holes one are riveted.
The utility model actuating mechanism is the improvement carried out the contact system of existing actuating mechanism, contact system after improvement forms new actuating mechanism after substituting original contact system, its core improvement is to be riveted on touch panel with the metallic elastic thin slice of conduction, substitutes the contact system of former spring and mobilizable tactile bridge composition.Contact system after improvement also may cause contact non-predetermined to close when running into strong vibration and impact or disconnect, but when vibrating and impact disappears, can automatically restore to original state under the elastic reaction of resilient foil.The utility model effectively can avoid thermorelay, after being subject to strong impact or vibration, because fixed position deviate from by tactile bridge, causes the defect that product damages in a large number in transport and storage process.The utility model uses, as JRS4-40 ~ 65dR thermal overload relay etc. in the actuating mechanism of thermorelay signal output with bimetal leaf.
Accompanying drawing explanation
Fig. 1 is the structure chart of thermorelay,
Fig. 2 is the actuating mechanism front view of thermorelay before improving,
Fig. 3 is the actuating mechanism rearview of thermorelay before improving,
Fig. 4 is the action schematic diagram of thermorelay before improving,
Fig. 5 is the normally open contact system architecture schematic diagram before improving,
Fig. 6 is the normally closed interlock system architecture schematic diagram before improving,
Fig. 7 is the normally open contact structural representation before improving,
Fig. 8 is the normally closed interlock structural representation before improving,
Fig. 9 is the touch panel structural representation of the normally open contact system before improving,
Figure 10 is the touch panel structural representation of the normally closed interlock system before improving,
Figure 11 is the tactile bridge construction schematic diagram of the normally open contact system before improving,
Figure 12 is the tactile bridge construction schematic diagram of the normally closed interlock system before improving,
Figure 13 is the normally open contact system architecture schematic diagram after improving,
Figure 14 is the normally closed interlock system architecture schematic diagram after improving,
Figure 15 is the normally open contact structural representation after improving,
Figure 16 is the normally closed interlock structural representation after improving,
Figure 17 is the tactile bridge construction schematic diagram of the normally open contact system after improving,
Figure 18 is the tactile bridge construction schematic diagram of the normally closed interlock system after improving,
Figure 19 is the touch panel structural representation of the normally open contact system after improving,
Figure 20 is the touch panel structural representation of the normally closed interlock system after improving,
Figure 21 is the actuating mechanism rearview after improving.
In figure: A-actuating mechanism, B-differential attachment, C-housing, D-bimetallic element, M, N, G, K-contact, 1-skeleton, 2-SR, 3-normally closed interlock disconnects button, 4-swing component, 5-current adjusting knob, 6-swing spring, 7-temperature compensating bimetal sheet, 8-test button, 9-swing pull bar, 10-reaction spring, 11-fixture, 12-the first transmission levers, 13-the second transmission levers, 14-push rod, 14a-dovetail groove, 15-the first normally open contact touch panel, 15a-V-shaped groove, 15b-medial launder, 16-the second normally open contact touch panel, 17-the first normally closed interlock touch panel, 18-the second normally closed interlock touch panel, 18a-V-shaped groove, 18b-medial launder, 19-normally closed interlock touches bridge, 19a-thrust boss, 19b-mounting groove, 19c-clamping wedge angle, 20-touch bridge elastic spring, 21-normally open contact touches bridge, 21a-thrust boss, 21b-mounting draw-in groove, 21c-clamping wedge angle, first normally open contact touch panel of 22-improvement, 22a-riveted joint boss, second normally closed interlock touch panel of 23-improvement, 23a-riveted joint boss, the normally closed interlock of 24-improvement touches bridge, 24a-riveted holes one, 24b-protruding contact one, 24c-thrust boss, the normally open contact of 25-improvement touches bridge, 25a-riveted holes two, 25b-protruding contact two, 25c-thrust boss.
Detailed description of the invention
The structure of the actuating mechanism of thermorelay as shown in Figure 2 and Figure 3, see Fig. 4 actuating mechanism theory of mechanics roughly: bending displacement amount is passed to differential attachment by main bimetal leaf, power F is passed through the second transmission levers 13 and the first transmission levers 12 by differential attachment again, make swing component 4, the trigger mechanism that swing spring 6 and swing pull bar 9 form is in action of reversing fast through critical point e, push rod 14 is driven to move in the direction of the arrow by dovetail groove 14a, push rod 14 drives normally closed interlock to touch bridge 19 and deflects to the right, the application point of power is at thrust boss 19a, contact disconnects, normally open contact then deflects to the right under the effect of tactile bridge elastic spring 20, contact closure.When main bimetal leaf power-off cooling bending displacement amount disappears, maintain the power that differential plate and the second transmission levers 13, first transmission levers 12 produce displacement to disappear, the trigger mechanism that swing component 4, swing spring 6, swing pull bar 9 form returns to original position under the pulling force of swing spring 6, is at this moment automatically return to form.SR 2 reaches the conversion automatically reset with hand-reset by the displacement limiting push rod 14.And temperature compensating bimetal sheet 7 top is fixed by the hole on skeleton 1 and fixture 11, the other end and current adjusting knob 5 are affixed, regulate the position of critical point to reach adjustment electric current by rotatory current adjusting knob 5.Test button 8, normally closed interlock disconnect the reversion of button 3 simulation mechanism makes contact generation action.Actuating mechanism and contact system are all fixed on skeleton 1, the reset response after reaction spring 10 push-botton operation power disappear.
Figure 5 shows that the normally open contact system of the actuating mechanism before improvement, the first normally open contact touch panel 15, second normally open contact touch panel 16, tactile bridge elastic spring 20 touch bridge 21 with normally open contact and constitute normally open contact system, and contact M and contact N is in off-state; Figure 6 shows that the normally closed interlock system of the actuating mechanism before improvement, the first normally closed interlock touch panel 17, second normally closed interlock touch panel 18, another tactile bridge elastic spring 20 touch bridge 19 with normally closed interlock and constitute normally closed interlock system, and contact G and contact K is in closure state.
Improve the shortcoming that front contact exists, as shown in Fig. 7 to Figure 12: the first normally open contact touch panel 15 lower end is provided with V-shaped groove 15a and medial launder 15b, normally open contact touches bridge 21 and is provided with thrust boss 21a, mounting draw-in groove 21b, the clamping wedge angle 21c that normally open contact touches bridge 21 bottom is positioned at the V-shaped groove 15a of the first normally open contact touch panel 15, see Fig. 4, under the effect of push rod 14, contact M and contact N is in normally open, hook one end of another tactile bridge elastic spring 20 is articulated in the mounting draw-in groove 21b position that normally open contact touches bridge 21, the other end is articulated in the medial launder 15b of the first normally open contact touch panel 15.When mechanism is triggered action, push rod 14 moves, and normally open contact touches bridge 21 and deflects to the right under the effect of tactile bridge elastic spring 20, and during more than the second normally open contact touch panel 16, normally open contact M, N are closed.Push rod force acts on thrust boss 21a position.The structure of normally closed interlock system is similar to normally closed interlock system, the structure of normally closed interlock system is the V-shaped groove 18a that bottom clamping wedge angle 19c that normally closed interlock touches bridge 19 is positioned at the second normally closed interlock touch panel 18, under the pulling force and the effect of the second normally closed interlock touch panel 18 of tactile bridge elastic spring 20, contact G and contact K is in normally off, the hook one end of touching bridge elastic spring 20 is articulated in the mounting draw-in groove 19b position that normally closed interlock touches bridge 19, and the other end is articulated in the medial launder 18b of the second normally closed interlock touch panel 18.When mechanism is triggered action, push rod 14 is moved beyond normally closed interlock when touching bridge 19, and push rod force acts on thrust boss 19a position, and normally closed interlock G, K open.
Because clamping wedge angle and V-shaped groove are all very little, in order to the sensitivity of safety action mechanism, downward spring tension can not be large, the clamping wedge angle touching bridge lower end when being subject to strong impact or vibration is easily deviate from the V-shaped groove touch panel, and can not automatically recover, because product completes production, this fault mainly occurs in storage and transportation, therefore user and user also cannot repair, and cause a large amount of loss.
As shown in Figure 13 to Figure 20: a kind of thermorelay that the utility model provides there is the actuating mechanism that elasticity touches bridge, comprise normally open contact system and normally closed interlock system; The first normally open contact touch panel 22, second normally open contact touch panel 16 that normally open contact system comprises improvement touches bridge 25 with the normally open contact improved; The lower end of the first normally open contact touch panel 22 improved is provided with bending, and bending is provided with riveted joint boss 22a; The normally open contact improved touches bridge 25 for the resilient foil of conduction, the normally open contact improved touches bridge 25 and is provided with protruding contact two 25b, protruding contact two 25b is corresponding with the contact M position of the second normally closed interlock touch panel 16, the normally open contact improved touches bridge 25 and is provided with thrust boss 25c, the lower end that the normally open contact improved touches bridge 25 is provided with riveted holes two 25a, and riveted joint boss 22a and riveted holes two 25a rivets; Normally closed interlock system comprises the first normally closed interlock touch panel 17, the second normally closed interlock touch panel 23 of improvement touches bridge 24 with the normally closed interlock improved; The lower end of the second normally closed interlock touch panel 23 improved is provided with bending, and bending is provided with riveted joint boss 23a; The normally closed interlock improved touches bridge 24 for the resilient foil of conduction, the normally closed interlock improved touches bridge 24 and is provided with protruding contact one 24b, the contact G of protruding contact one 24b and the first normally closed interlock touch panel 17 touches, the normally closed interlock improved touches bridge 24 and is provided with thrust boss 24c, the lower end that the normally closed interlock improved touches bridge 24 is provided with riveted holes one 24a, and riveted joint boss 23a and riveted holes one 24a rivets.
The utility model only touches to prior art first normally open contact touch panel 15, second normally open contact touch panel 16, tactile bridge elastic spring 20, normally open contact the normally open contact that bridge 21 forms, the normally closed interlock that first normally closed interlock touch panel 17, second normally closed interlock touch panel 18, normally closed interlock touch bridge 19, tactile bridge elastic spring 20 forms improves, other parts do not change, and the wherein second long open contact touch panel 16, first normally closed interlock touch panel 17 does not also change.The theory of mechanics of actuating mechanism is roughly: bending displacement amount is passed to differential attachment by main bimetal leaf, power F is passed through the second transmission levers 13 and the first transmission levers 12 by differential attachment again, make swing component 4, swing spring 6 and swing trigger mechanism that pull bar 9 forms in action of reversing fast through critical point e, drive push rod 14 to move in the direction of the arrow by dovetail groove 14a, course of action is identical with the mechanism before improvement.Push rod 14 drives the normally closed interlock improved to touch bridge 24 and deflects to the right, contact probe bridge 24 is metallic elastic thin slice, there is elastic bending deflection simultaneously, the application point of power is at thrust boss 24c, and contact disconnects, and the normally open contact of improvement touches bridge 25, the thrust kept due to thrust boss 25c place push rod 14 disappears, the flexural deformation of metallic elastic thin slice reduces, and deflects to the right, contact closure under the effect of elastic restoring force.When main bimetal leaf power-off cooling bending displacement amount disappears, maintain the power that differential plate and the second transmission levers 13, first transmission levers 12 produce displacement to disappear, the trigger mechanism that swing component 4, swing spring 6, swing pull bar 9 form returns to original position under the pulling force of swing spring 6, is at this moment automatically return to form.SR 2 reaches the conversion automatically reset with hand-reset by the displacement limiting push rod 14.After improvement often open with normally closed interlock all contact eliminate tactile bridge elastic spring 20, by touch panel and elastic metallic touch bridge rivet form, remove the V-shaped groove on touch panel and spring carrier arm groove.The utility model effectively can avoid having the thermorelay improving front actuating mechanism, after being subject to strong impact or vibration, because fixed position deviate from by tactile bridge, causes the defect that product damages in a large number in transport and storage process.
The boss shape of riveted joint boss 22a is rectangle or circle, and the boss shape of riveted joint boss 23a is rectangle or circle; The shape of riveted holes one 24a is rectangle or circle, and the shape of riveted holes two 25a is rectangle or circle.
As Figure 21, the contact system after improvement forms new actuating mechanism after substituting former contact system, and its core is be riveted on touch panel with the metallic elastic thin slice of conduction, substitutes the contact system of former spring and mobilizable tactile bridge composition.Contact system after improvement also may cause contact non-predetermined to close when running into strong vibration and impact or disconnect, but when vibrating and impact disappears, under the elastic reaction of shell fragment, automatically restores to original state.This improvement effectively can avoid having the thermorelay improving front actuating mechanism, after being subject to strong impact or vibration, because fixed position deviate from by tactile bridge, causes the defect that product damages in a large number in transport and storage process.
Claims (2)
1. thermorelay has the actuating mechanism that elasticity touches bridge, comprises normally open contact system and normally closed interlock system; It is characterized in that: normally open contact system comprises the first normally open contact touch panel (22) of improvement, the second normally open contact touch panel (16) touches bridge (25) with the normally open contact improved; The lower end of the first normally open contact touch panel (22) improved is provided with bending, and bending is provided with riveted joint boss (22a); The normally open contact improved touches bridge (25) for the resilient foil of conduction, the normally open contact improved touches bridge (25) and is provided with protruding contact two (25b), protruding contact two (25b) is corresponding with contact (M) position of the second normally closed interlock touch panel (16), the normally open contact improved touches bridge (25) and is provided with thrust boss (25c), the lower end that the normally open contact improved touches bridge (25) is provided with riveted holes two (25a), and riveted joint boss (22a) and riveted holes two (25a) are riveted; Normally closed interlock system comprises the first normally closed interlock touch panel (17), the second normally closed interlock touch panel (23) of improvement touches bridge (24) with the normally closed interlock improved; The lower end of the second normally closed interlock touch panel (23) improved is provided with bending, and bending is provided with riveted joint boss (23a); The normally closed interlock improved touches bridge (24) for the resilient foil of conduction, the normally closed interlock improved touches bridge (24) and is provided with protruding contact one (24b), protruding contact one (24b) touches with the contact (G) of the first normally closed interlock touch panel (17), the normally closed interlock improved touches bridge (24) and is provided with thrust boss (24c), the lower end that the normally closed interlock improved touches bridge (24) is provided with riveted holes one (24a), and riveted joint boss (23a) and riveted holes one (24a) are riveted.
2. a kind of thermorelay as claimed in claim 1 has the actuating mechanism that elasticity touches bridge, it is characterized in that: the boss shape of riveted joint boss (22a) is rectangle or circle, and the boss shape of riveted joint boss (23a) is rectangle or circle; The shape of riveted holes one (24a) is rectangle or circle, and the shape of riveted holes two (25a) is rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639273.6U CN204303684U (en) | 2014-10-31 | 2014-10-31 | Thermorelay there is the actuating mechanism that elasticity touches bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639273.6U CN204303684U (en) | 2014-10-31 | 2014-10-31 | Thermorelay there is the actuating mechanism that elasticity touches bridge |
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| CN204303684U true CN204303684U (en) | 2015-04-29 |
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| CN201420639273.6U Active CN204303684U (en) | 2014-10-31 | 2014-10-31 | Thermorelay there is the actuating mechanism that elasticity touches bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319178A (en) * | 2014-10-31 | 2015-01-28 | 天水二一三电器有限公司 | Action mechanism with elastic touch bridge for thermal relay |
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2014
- 2014-10-31 CN CN201420639273.6U patent/CN204303684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319178A (en) * | 2014-10-31 | 2015-01-28 | 天水二一三电器有限公司 | Action mechanism with elastic touch bridge for thermal relay |
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