CN102456518B - Tripping mechanism and switch device with same - Google Patents
Tripping mechanism and switch device with same Download PDFInfo
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- CN102456518B CN102456518B CN201010524326.6A CN201010524326A CN102456518B CN 102456518 B CN102456518 B CN 102456518B CN 201010524326 A CN201010524326 A CN 201010524326A CN 102456518 B CN102456518 B CN 102456518B
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Abstract
The invention provides a tripping mechanism which comprises a base, a first component, a second component, a third component and an energy storage component, wherein the second component is used for keeping the third component at a certain position, when at the position, the third component keeps in contact with the first component; the energy storage component is arranged on the base, and is connected with the first component, and when the third component and the first component are in contact, energy is stored; and the first component movably arranged in a space which is formed by the base, when the third component and the first component are disengaged, the first component moves along a straight line under the push of the stored energy. The invention also provides a switch device with the tripping mechanism; and the tripping mechanism and the switch device are simpler in structure, the sizes are smaller, and the trigger force is more stable.
Description
Technical field
The present invention relates to a kind of tripping mechanism and the switching device with this tripping mechanism, relate in particular to the tripping mechanism that a kind of power of triggering is stable and the switching device with this tripping mechanism.
Background technology
In circuit breaker, be all provided with tripping mechanism, its effect is in the time there is overload current in circuit, to carry out delayed releasing, or in the time there is large short circuit current in circuit, carries out instantaneous trip, makes circuit breaker trip, to realize the protection to circuit.
Circuit breaker of the prior art generally all comprises a rotatable release lever, release lever can fasten with locking-bar, in the time there is overload current or large short circuit current in circuit, the temperature-sensing element of heat or magnetic trigger element promote locking-bar and release lever disengages, thereby drive release lever rotation to discharge, and clash into the draw bar on circuit breaker, circuit breaker 10 is moved.
Can find out, because release lever need to be rotated, so circuit breaker need to reserve enough revolution spaces, make circuit breaker volume larger, and, because the movement locus of release lever is arc, so triggering power when release lever clashes into draw bar neither be very stable.
Moreover release lever, by often having a contact-making surface, contacts with circuit breaker base by contact-making surface, this contact make and base between can produce certain friction, larger frictional force also can impact triggering power.
Summary of the invention
The present invention aims to provide a kind of tripping mechanism, and structure is comparatively simple, can save it and take up room, and triggering power is comparatively stable.
Another object of the present invention is to provide a kind of simple in structure and switching device with this tripping mechanism that triggering power is stable.
For achieving the above object, the present invention proposes a kind of tripping mechanism, comprise a base, a first component, a second component, the 3rd parts and accumulation of energy parts,
Described second component is for remaining on a position by described the 3rd parts, and in the time of this position, described the 3rd parts and described first component keep in touch;
Described accumulation of energy parts are arranged on base, are connected with described first component, and stored energy in the time that described the 3rd parts contact with described first component;
First component is movably arranged in the space that described base forms, and in the time that described the 3rd parts and described first component disengage, under the promotion of described stored energy, described first component moves along a straight line.
As a kind of execution mode of tripping mechanism of the present invention, described accumulation of energy parts are a Compress Spring.
Preferably, described first component can move along the deformation direction of described Compress Spring.
As a kind of execution mode of tripping mechanism of the present invention, described second component is a torsionspring.
Preferably, described torsionspring one end is fixed on described base, and the other end is resisted against on described the 3rd parts.
As a kind of execution mode of tripping mechanism of the present invention, described second component is an extension spring.
Preferably, described extension spring one end is fixed on described base, and the other end is connected with described the 3rd parts.
As a kind of execution mode of tripping mechanism of the present invention, described first component, in motion process, contacts with described base by a straight line convex edge, and extend along the direction of motion of described first component described convex edge.
As a kind of execution mode of tripping mechanism of the present invention, described base has a stop tab, and described stop tab can limit the rectilinear motion of described first component.
As a kind of execution mode of tripping mechanism of the present invention, described first component has a depressed part, when described the 3rd parts stretch into this depressed part at least partly, under the effect of described second component, can limit the rectilinear motion of first component.
As a kind of execution mode of tripping mechanism of the present invention, described the 3rd parts can be rotatably set on base, and one end is resisted against on described second component, and the other end is free end.
As a kind of execution mode of tripping mechanism of the present invention, described second component applies confining force to described the 3rd parts, to maintain contacting of described the 3rd parts and described first component, when described the 3rd parts are subject to external force, and when this external force can overcome the confining force that described second component applies, described the 3rd parts and described first component disengage.
The present invention also provides a kind of switching device, comprises tripping mechanism as above, and especially, described switching device is breaker of plastic casing or miniature circuit breaker.
First component in tripping mechanism and the switching device providing due to the embodiment of the present invention carries out rectilinear motion in the time triggering, its movement locus is not camber line, so, the whole mechanism of one side (and then, switching device) size can be reduced largely, especially,, in the time that second component adopts torsionspring, the size of mechanism can also be reduced further; On the other hand, the triggering power of the first component under rectilinear motion is also comparatively stable.
Further, first component in tripping mechanism and switching device in the embodiment of the present invention contacts with base by the convex edge at back, because its contact area is less, first component suffered frictional force in the process of motion is also corresponding less, and its size that triggers power also can not be a greater impact.
Brief description of the drawings
The following drawings is only intended to the present invention to schematically illustrate and explain, not delimit the scope of the invention.Wherein,
Schematic diagram when Fig. 1 is tripping mechanism embodiment locking of the present invention;
Fig. 2 is the schematic diagram of tripping mechanism shown in Fig. 1 in the time discharging;
Fig. 3 is the first component schematic diagram in tripping mechanism embodiment of the present invention;
Fig. 4 is the rear side schematic diagram of first component shown in Fig. 3;
Fig. 5 is the another embodiment schematic diagram of tripping mechanism of the present invention.
Embodiment
Understand for technical characterictic of the present invention, object and effect being had more clearly, now contrast brief description of the drawings the specific embodiment of the present invention.
Fig. 1 and Fig. 2 have schematically shown two kinds of different conditions as a kind of tripping mechanism of execution mode, and wherein tripping mechanism comprises 3, one accumulation of energy parts 5 of 2, one the 3rd parts of 4, one second components of 1, one first component of a base.In Fig. 1, first component 4 and the 3rd parts 3, in contact condition, be in the lock state, and in Fig. 2, first component 4 and the 3rd parts 3 are in separating contacting states, in released state.
As shown in Figure 1, accumulation of energy parts 5 are arranged on base 1, are connected with first component 4, and in the time that first component 4 is depressed, accumulation of energy parts 5 also can correspondingly be put aside energy.As a kind of execution mode, accumulation of energy parts 5 can be Compress Springs, can be because spring deformation is put aside energy in the time of pressurized, and when the pressure being subject to when Compress Spring disappears, Compress Spring is discharged, and the energy of putting aside is just corresponding also to be discharged.Rely on the energy of putting aside in accumulation of energy parts 5, can promote first component 4 and carry out rectilinear motion, due to different from the past the rotatablely moving of movement locus of first component 4, rectilinear motion can reduce the space of tripping mechanism.
As shown in Figure 3 and Figure 4, first component 4 lower end 4c are connected with accumulation of energy parts 5, first component 4 also has a depressed part 4a, realize fastening with the 3rd parts 3 by this depressed part 4a and contact, in the time that the 3rd parts 3 stretch into depressed part 4a, realize and fastening, in the time that the 3rd parts 3 skid off depressed part 4a, realize and departing from.
As shown in Figure 4, the back side of first component 4 also has two straight line convex edge 4b, convex edge 4b extends along the direction of motion of first component 4, its sectional area is relatively little, rely on convex edge 4b to realize and contacting with base 1, correspondingly, in the time that first component 4 moves along base 1, the frictional force of the two also can be corresponding less, and less frictional force is also less on the triggering power impact of first component 4.
2 of second components can be used for the 3rd parts 3 to maintain on a position, in the time of this position, the 3rd parts 3 keep in touch with first component 4, as shown in Figure 1, second component 2 can be fixed on base 1, by the 3rd parts 3 are applied to a confining force, keep contacting of the 3rd parts 3 and first component 4.
As a kind of execution mode, second component can be a torsionspring, and one end 2b of torsionspring is fixed on base 1, and other end 2a is resisted against on the 3rd parts 3, by this against and the 3rd parts 3 are applied to a confining force, and then keep contacting of low three parts 3 and first component 4.In the time that second component 2 is subject to an External Force Acting, if this external force can overcome the confining force that the 3rd parts 3 are applied, 3 of the 3rd parts can disengage with first component 4.In the time that second component adopts torsionspring, because its size is relatively little, fixed form is flexible, can reduce further the size of tripping mechanism.
The 3rd parts 3 can be coupling on a projection 1c of base 1, and then can realize rotation around this projection 1c, one end 3a of the 3rd parts 3 realizes and contacting with second component 2, as a kind of execution mode, one end 3a of the 3rd parts 3 can be resisted against on second component 2, other end 3b is free end, can transmit external force.As a kind of execution mode, the 3rd parts 3 can be realized contact by the depressed part 4a by first component 4, such as, in the time that the 3rd parts 3 at least stretch into depressed part 4a a part of, second component 2, by the 3rd parts 3 application of forces, maintains the buckling state of the two.
Now by Fig. 1 and Fig. 2, the action as a kind of tripping mechanism of execution mode is described.
As shown in Figure 1, in the time depressing first component 4 along L1 direction, accumulation of energy parts 5 are correspondingly put aside energy, the 3rd parts 3 rotate and stretch in the depressed part 4a of first component 4 along L2 direction under the promotion of second component 2, first component 4 is realized fastening with the 3rd parts 3 and is contacted, and keeps this contact condition under the confining force applying at second component 2.
As shown in Figure 2, in the time having external force to promote the free end 3b of the 3rd parts 3 along L4 direction, such as in the time there is overload current or large short circuit current in circuit, the temperature-sensing element of heat or magnetic trigger element (not shown) just can promote the 3rd parts 3 along L4 direction, in the time that this power is enough to overcome the confining force that second component 2 applies, one end 3a of the 3rd parts 3 also can rotate around axle 1c along L5 direction, the 3rd parts 3 skid off the depressed part 4a of first component 4, and the 3rd parts 3 disengage with first component 4.Correspondingly, the accumulation of energy parts 5 that are connected with first component 4 are just no longer subject to the effect of external force, the energy wherein put aside just can promote first component 4 and carry out rectilinear motion along L6 direction, in the time that first component 4 moves to the stop tab 1a place on base 1, protruding 4d and the stop tab 1a of first component 4 bump, and first component 4 stops further motion.
As shown in Figure 5, as another kind of execution mode, second component can be also extension spring 2 ', now one end 2 ' a of extension spring 2 ' is fixed on base 1, the other end 2 ' b is connected on the free end 3b of the 3rd parts 3, in the time that the 3rd parts 3 contact with first component 4 (as in buckling state), extension spring 2 ' applies a pulling force as confining force to the free end 3b of the 3rd parts 3, and relies on this pulling force to keep when the 3rd parts 3 and the contact condition of first component 4.In the time applying an external force to the free end 3b of the 3rd parts 3, if the pulling force of extension spring 2 ' is less than the external force with its opposite direction, 3 of the 3rd parts can disengage with first component 4, carry out rectilinear motion under the promotion of the energy that first component 4 is put aside at accumulation of energy parts 5.
In addition, the present invention also provides a kind of switching device 20 with above-mentioned tripping mechanism, and such switching device can be breaker of plastic casing or miniature circuit breaker.
First component in tripping mechanism and the switching device providing due to the embodiment of the present invention carries out rectilinear motion in the time triggering, its movement locus is not camber line, so, the whole mechanism of one side (and then, switching device) size can be reduced largely, especially,, in the time that second component adopts torsionspring, the size of mechanism can also be reduced further; On the other hand, the triggering power of the first component under rectilinear motion is also comparatively stable.
Further, first component in tripping mechanism and switching device in the embodiment of the present invention contacts with base by the convex edge at back, because its contact area is less, first component suffered frictional force in the process of motion is also corresponding less, and its size that triggers power also can not be a greater impact.
Be to be understood that, although this specification is described according to each embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
The foregoing is only the schematic embodiment of the present invention, not in order to limit scope of the present invention.Any those skilled in the art, not departing from equivalent variations, amendment and the combination done under the prerequisite of design of the present invention and principle, all should belong to the scope of protection of the invention.
Claims (13)
1. a tripping mechanism, comprises a base, a first component, and a second component, the 3rd parts and accumulation of energy parts, is characterized in that,
Described first component is movably arranged in the space that described base forms, described first component has a depressed part, described second component is for remaining on a position by described the 3rd parts, in the time of this position, described the 3rd parts stretch into this depressed part at least partly, can limit the rectilinear motion of described first component;
Described accumulation of energy parts are arranged on base, are connected with described first component, and stored energy in the time that described the 3rd parts contact with described first component;
In the time that described the 3rd parts and described first component disengage, under the promotion of described stored energy, described first component moves along a straight line.
2. tripping mechanism as claimed in claim 1, is characterized in that, described accumulation of energy parts are a Compress Spring.
3. tripping mechanism as claimed in claim 2, is characterized in that, described first component can move along the deformation direction of described Compress Spring.
4. tripping mechanism as claimed in claim 1, is characterized in that, described second component is a torsionspring.
5. tripping mechanism as claimed in claim 4, is characterized in that, described torsionspring one end is fixed on described base, and the other end is resisted against on described the 3rd parts.
6. tripping mechanism as claimed in claim 1, is characterized in that, described second component is an extension spring.
7. tripping mechanism as claimed in claim 6, is characterized in that, described extension spring one end is fixed on described base, and the other end is connected with described the 3rd parts.
8. tripping mechanism as claimed in claim 1, is characterized in that, described first component, in motion process, contacts with described base by a straight line convex edge, and extend along the direction of motion of described first component described convex edge.
9. tripping mechanism as claimed in claim 1, is characterized in that, described base has a stop tab, and described stop tab can limit the rectilinear motion of described first component.
10. tripping mechanism as claimed in claim 1, is characterized in that, described the 3rd parts can be rotatably set on base, and one end is resisted against on described second component, and the other end is free end.
11. tripping mechanisms as claimed in claim 1, it is characterized in that, described second component applies confining force to described the 3rd parts, to maintain contacting of described the 3rd parts and described first component, when described the 3rd parts are subject to external force, and when this external force can overcome the confining force that described second component applies, described the 3rd parts and described first component disengage.
12. 1 kinds of switching devices, comprise the tripping mechanism as described in claim 1-11 any one.
13. switching devices as claimed in claim 12, is characterized in that, described switching device is breaker of plastic casing or miniature circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524326.6A CN102456518B (en) | 2010-10-28 | 2010-10-28 | Tripping mechanism and switch device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524326.6A CN102456518B (en) | 2010-10-28 | 2010-10-28 | Tripping mechanism and switch device with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102456518A CN102456518A (en) | 2012-05-16 |
| CN102456518B true CN102456518B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010524326.6A Expired - Fee Related CN102456518B (en) | 2010-10-28 | 2010-10-28 | Tripping mechanism and switch device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102456518B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384516A (en) * | 2001-05-03 | 2002-12-11 | Lg产电株式会社 | Circuit breaker |
| CN101501806A (en) * | 2006-08-09 | 2009-08-05 | 西门子公司 | Switching unit |
| CN201355599Y (en) * | 2008-12-26 | 2009-12-02 | 上海永继电气有限公司 | Tripping mechanism for circuit breaker |
-
2010
- 2010-10-28 CN CN201010524326.6A patent/CN102456518B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384516A (en) * | 2001-05-03 | 2002-12-11 | Lg产电株式会社 | Circuit breaker |
| CN101501806A (en) * | 2006-08-09 | 2009-08-05 | 西门子公司 | Switching unit |
| CN201355599Y (en) * | 2008-12-26 | 2009-12-02 | 上海永继电气有限公司 | Tripping mechanism for circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102456518A (en) | 2012-05-16 |
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