CN207587670U - Electromagnetic tripping apparatus - Google Patents
Electromagnetic tripping apparatus Download PDFInfo
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- CN207587670U CN207587670U CN201721566137.9U CN201721566137U CN207587670U CN 207587670 U CN207587670 U CN 207587670U CN 201721566137 U CN201721566137 U CN 201721566137U CN 207587670 U CN207587670 U CN 207587670U
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- armature
- coil rack
- resistor part
- threshold resistor
- resistance
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- Withdrawn - After Issue
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Abstract
A kind of electromagnetic tripping apparatus, including coil rack, the coil being wound on coil rack and the core assembly being installed in coil rack, the core assembly includes the armature being mounted in coil rack, the resetting spring, iron core and mandril of reseting elasticity is provided for armature, further include the threshold resistor part that resistance is provided for armature in action moment, armature coordinates in initial position and the limiting of threshold resistor part, and the limiting with threshold resistor part is released after armature movement and is coordinated.The utility model electromagnetic tripping apparatus by threshold resistor part is set and set on coil rack and armature for installing the resistance piece mounting structure of threshold resistor part, the movement speed of armature will be more many soon than traditional electromagnetic tripping apparatus, greatly improve the hitting power to release lever and/or moving contact support.
Description
Technical field
The utility model is related to Low Voltage Electrical Apparatus, more particularly to a kind of electromagnetic tripping apparatus.
Background technology
Low-voltage circuit breaker is one of most important protection and control element in low-voltage electrical apparatus, is mainly used for industrial and mining enterprises, height
In low-voltage network in layer building, hotel, hospital, airport, harbour and modern neighborhood unit, set as protection alternating current-direct current electric appliance
The standby harm being allowed to from abnormal conditions such as overcurrent, reverse current, short circuit and under-voltages.It simultaneously can be used for infrequently rising
Dynamic motor and operation or conversion circuit.
Generally, breaker hits release lever by electromagnetic tripping apparatus when encountering overcurrent and contact is supported so that
Breaker dynamic/static contact separates disconnecting circuit so as to protect the safety of power grid and rear end equipment.Electromagnetic tripping apparatus is generally by electric current
Coil, coil rack, iron core, armature and reaction spring are formed.When overcurrent passes through current coil, generated electricity on armature
Magnetic force is enough to overcome reaction spring and be drawn to iron core, generates snap action.In the case where electromagnetic force is certain by changing counter-force
Size can change action current value.Electromagnetic tripping apparatus is chiefly used in the protection of big short circuit current.
Electromagnetic force F that the power F that armature is subject in the motion process to iron core is generated by coil, reaction spring generate anti-
The collective effect of frictional force F that power F and armature are generated with coil rack, i.e. F conjunctions=F electromagnetic force-F counter-force-F frictional force.Due to
Frictional force F very littles, therefore can be ignored when calculating, i.e. resultant force F conjunctions=F electromagnetic force-F counter-forces.Pass through electricity in overcurrent
The rising starting stage of streamline circle, armature temporarily remain stationary as under the reaction of electromagnetic force and reaction spring, i.e. F conjunctions=F electricity
Magnetic force-F counter-force=0；When over current value keeps increase, electromagnetic force is increasingly greater than counter-force, i.e. F conjunctions=F electromagnetic forces-F is anti-
Power>0, armature starts the displacement of oriented iron core movement；Hereafter, the difference of electromagnetic force and counter-force gradually increases so that armature continues
Accelerate to move to iron core, until strike is supported to release lever and/or moving contact.
During armature motion, the resistance of reaction spring also linearly increases, in the initial displacement stage, acceleration value
Since 0, hereafter a distance acceleration value will slowly be risen, therefore in the case, and armature movement speed will be by
Larger limitation, this is bound to cause strike release lever and/or the speed of moving contact support is slower, so as to influence product breaking capacity
And safety.Speed when existing electromagnetic tripping apparatus is in order to increase strike release lever and/or moving contact support, it is general to pass through
Increase coil turn to increase electromagnetic force, and coil turn increase can cause coil processing technology complicated, increase product cost, carry
The negative effects such as high yield product temperature liter.At the same time, under conditions of circuit breaker tripping characteristic is met, the increase of electromagnetic force causes bullet
The initial force value of spring also will accordingly increase, and so also be unfavorable for hitting release lever and/or moving contact is supported.
Invention content
It is at low cost the purpose of the utility model is to overcome the defects of the prior art, providing a kind of performance safety to stablize
Electromagnetic tripping apparatus.
To achieve the above object, the utility model employs following technical solution：
A kind of electromagnetic tripping apparatus including coil rack 1, the coil 2 being wound on coil rack 1 and is installed on coil bone
Core assembly 3 in frame 1, the core assembly 3 include the armature 31 being mounted in coil rack, provide reset bullet for armature 31
Resetting spring 32, iron core 33 and the mandril 34 of power further include the threshold resistor part 4 for providing resistance in action moment for armature 31,
Armature 31 coordinates in initial position and the limiting of threshold resistor part 4, and the limiting that armature 31 is released after moving with threshold resistor part 4 is matched
It closes.
Further, the middle part of coil rack 1 is equipped with accommodating cavity 101, and armature 31 is installed on one end of accommodating cavity 101,
Iron core 33 is installed on the other end of accommodating cavity 101, and resetting spring 32 is installed between armature 31 and iron core 33, resetting spring
32 one end offsets with armature 31, and the other end offsets with iron core 33；33 middle part of iron core is equipped with supported hole 331, one end of mandril 34
It is connect across supported hole 331 with armature 31, the other end of mandril 34 is stretched out outside iron core 33；When coil 2 is powered, armature 31 overcomes
The resistance of threshold resistor part 4 is drawn to iron core 33 and mandril 34 is driven to eject.
Further, the threshold resistor part 4 is the sphere with 31 resilient engagement of armature on coil rack 1,
Armature 31 is equipped with the resistance piece installation groove 311 with sphere limiting cooperation.
Further, the threshold resistor part 4 is elastic pellet.
Further, resistance piece mounting hole 102 is equipped on coil rack 1, coil 2 is from the lateral wall of coil rack 1 to threshold
Value resistance piece 4 is limited, before armature 31 acts, 102 face resistance piece installation groove 311 of resistance piece mounting hole, and elastic pellet
It is installed in resistance piece mounting hole 102 and resistance piece installation groove 311, the movement of armature 31 releases the limiting of threshold resistor part 4
Afterwards, elastic pellet is by compression and back resistance piece mounting hole 102.
Further, the threshold resistor part 4 includes compression spring 42 and the rigid bead 43 being connect with compression spring 42, compression spring
42 provide elastic force for rigid bead 43.
Further, the side wall protrusion of the coil rack 1 is equipped with mounting post 11, and mounting post 11 is internally provided with to accommodate
The accommodating chamber 111 of threshold resistor part 4, the other end of the compression spring 42 and the top of accommodating chamber 111 offset limiting, and armature 31 acts
Before, 111 face resistance piece installation groove 311 of accommodating chamber, rigid bead 43 and resistance piece installation groove 311 offset limiting, armature
After 31 movements release the limiting of threshold resistor part 4, in rigid 43 retraction accommodating chamber 111 of bead.
Further, pin 5, the open top of the mounting post 11 are further included, the side wall of mounting post 11 is equipped with to install
The pin hole 501 of pin 5, after threshold resistor part 4 is packed into from the top of mounting post 11, pin 5 is packed into pin hole 501 to compression spring 42
The other end limiting.
Further, the installation groove 311 is the annular recess around the setting of 31 side wall of armature.
Further, the threshold resistor part 4 is the gag lever post on coil rack 1, and gag lever post passes through limit spring
It is pivoted on coil rack, before armature 31 acts, gag lever post one end is transferred to coil rack 1 under the driving of limit spring
Armature 31 is limited in accommodating cavity 101, the movement of armature 3 makes gag lever post rotate out accommodating cavity 101, releases gag lever post pair
The limiting of armature 31.
The utility model electromagnetic tripping apparatus passes through the use that sets threshold resistor part and set on coil rack and armature
In the resistance piece mounting structure of installation threshold resistor part, when electric current reaches setting instantaneous trip current value, threshold resistor part exists
One electric current during overcurrent is provided and reaches the resistance that setting instantaneous trip current value can just overcome, armature overcomes threshold resistor part to carry
It is only moved, is supported so as to hit release lever and/or moving contact, resetting spring to iron core by the effect of electromagnetic force after the resistance of confession
Counter-force is hardly provided into iron core motion process or with electromagnetic force not in an order of magnitude in armature, only provided so that rank
Iron returns to the power of initial position；The movement speed of armature will be more much larger than traditional electromagnetic tripping apparatus, greatly improves to de-
The hitting power that button bar and/or moving contact are supported.First embodiment threshold resistor part uses an elastic ball element, and armature moves
Before work, elastomeric spherical element is contained in resistance piece mounting hole and resistance piece installation groove, and during armature movement, elastic pellet is pressed
Retraction resistance part mounting hole, no longer to armature provide resistance or it is very small can ignore, at this point, armature with compared with high acceleration only
It is moved by the effect of electromagnetic force to iron core.Second embodiment threshold resistor part includes compression spring and small with the rigidity of compression spring one end
Ball, before armature movement, the accommodating chamber being internally provided with for accommodating threshold resistor part of mounting post, rigid bead is installed with resistance piece
Groove offsets limiting, and during armature movement, rigid bead retraction accommodating chamber no longer provides armature resistance or very small can neglect
Slightly, at this point, armature with compared with high acceleration only moved by the effect of electromagnetic force to iron core.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model electromagnetic tripping apparatus first embodiment；
Fig. 2 is the exploded view of the utility model electromagnetic tripping apparatus first embodiment；
Fig. 3 is the sectional view before the utility model electromagnetic tripping apparatus first embodiment trip action；
Fig. 4 is the sectional view after the utility model electromagnetic tripping apparatus first embodiment trip action；
Fig. 5 is the overall structure diagram of the utility model electromagnetic tripping apparatus second embodiment；
Fig. 6 is the exploded view of the utility model electromagnetic tripping apparatus second embodiment；
Fig. 7 is the sectional view before the utility model electromagnetic tripping apparatus second embodiment trip action；
Fig. 8 is the sectional view after the utility model electromagnetic tripping apparatus second embodiment trip action；
Fig. 9 is the displacement force value figure of prior art electromagnetic force and resistance；
Figure 10 is the displacement force value figure of the utility model electromagnetic force and resistance.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 to 10 provides, the tool of the electromagnetic tripping apparatus of the utility model is further illustrated
Body embodiment.The electromagnetic tripping apparatus of the utility model is not limited to the following description.
As shown in figures 1-8, the utility model electromagnetic tripping apparatus including coil rack 1, is wound on coil rack 1
Coil 2 and the core assembly 3 being installed in coil rack 1, the core assembly 3 include the armature being mounted in coil rack
31st, the resetting spring 32, iron core 33 and mandril 34 of reseting elasticity are provided for armature 31, further includes contact assembly 6, yoke 7 and connect
Touch panel 8；The contact plate 8 is installed on the lower section of 1 one end of coil rack, and contact plate 8 is electrically connected with one end of coil 2, yoke 7
Installation and the other end of coil rack 1, contact assembly 6 are fixed on the other end end of coil rack 1, contact assembly 6 and coil 2
The other end electrical connection.The middle part of coil rack 1 is equipped with accommodating cavity 101, and armature 31 is installed on one end of accommodating cavity 101,
Iron core 33 is installed on the other end of accommodating cavity 101, and resetting spring 32 is installed between armature 31 and iron core 33, resetting spring 32
One end offset with armature 31, the other end offsets with iron core 33；33 middle part of iron core is equipped with supported hole 331, and one end of mandril 34 is worn
It crosses supported hole 331 to connect with armature 31, the other end of mandril 34 is stretched out outside iron core 33；When coil 2 is powered, armature 31 overcomes threshold
The resistance of value resistance piece 4 and resetting spring is drawn to iron core 33 and mandril 34 is driven to eject, the resistance of resetting spring in the utility model
The resistance of relative threshold resistance piece 4 can be ignored.The overall structure simple and compact of the utility model electromagnetic tripping apparatus.
As shown in figures 1-8, the utility model electromagnetic tripping apparatus further includes and provides resistance in action moment for armature 31
Threshold resistor part 4, armature 31 coordinate in initial position and the limiting of threshold resistor part 4, and armature 31 is released after moving and threshold resistor
The limiting cooperation of part 4.Armature 31 release with after the limiting of threshold resistor 4, threshold resistor part 4 armature 31 is not provided resistance or
The resistance very little of offer.The utility model electromagnetic tripping apparatus is by setting threshold resistor part and being set on coil rack and armature
That puts is used to install the resistance piece mounting structure of threshold resistor part, when electric current reaches setting instantaneous trip current value, threshold value resistance
Power part provides an electric current in overcurrent and reaches the resistance that setting instantaneous trip current value can just overcome, and armature overcomes threshold value to hinder
It is only moved to iron core by the effect of electromagnetic force after the resistance that power part provides, is supported so as to hit release lever and/or moving contact, it is multiple
Position spring hardly provides counter-force into iron core motion process or with electromagnetic force not in an order of magnitude in armature, only provides
So that armature returns to the power of initial position；The movement speed of armature will be more much larger than traditional electromagnetic tripping apparatus, carries significantly
The hitting power that height supports release lever and/or moving contact.
As shown in Figure 3,4, the iron core 33 is equipped with to install the another of resetting spring 32 towards one end of resetting spring 32
The spring fixing groove 332 of one end, the other end of resetting spring 32 are set in one end of mandril 34.One end setting spring of iron core 33
The other end of resetting spring 32 is fixed in fixing groove 332, while resetting spring 32 is set in one end of mandril 34, resets bullet
The mounting structure of spring 32 is stablized, and trip action is more reliable and more stable.The installation groove 311 is to be set around 31 side wall of armature
Annular recess.
As shown in Fig. 2, the mandril 34 includes the circular first mandril column 341 being connect with armature 31 and the first mandril
The circular second mandril column 342 and the circular mandril cap 343 of 342 end of the second mandril column that column 341 connects, the first mandril column
341 diameter is less than the diameter of the second mandril column 342, and the diameter of mandril cap 343 is more than the diameter of the second mandril column 342, mandril
Cap 343, which is buckled, is limited in the end of contact assembly 6.First mandril column 341 is connect with armature 31, the larger mandril cap of end diameter
343 support for hitting release lever and/or moving contact.The structure of mandril 34 is simple, easy to process.
As shown in figures 1-8, the threshold resistor part 4 is the ball with 31 resilient engagement of armature on coil rack 1
Shape object, armature 31 are equipped with the resistance piece installation groove 311 with sphere limiting cooperation.Threshold resistor part 4 can also be to hold in the mouth
The swingle set on the right side of armature in front end Fig. 3 of iron 31, the outer surface protrusion of coil rack 1 are equipped with installation swingle
Mounting structure, before armature 31 acts, the inner surface that swingle stretches out coil rack 1 limits armature 31, when armature 31 acts,
Swingle is pushed to be transferred in mounting structure, contacts the limiting to armature 31, the lower elasticity that can be installed for reset of swingle
Element.
As shown in Figs 1-4, one embodiment of electromagnetic tripping apparatus.The threshold resistor part 4 is elastic pellet, online
Ring framework 1 is equipped with resistance piece mounting hole 102, and coil 2 limits threshold resistor part 4 from the lateral wall of coil rack 1, holds in the mouth
Before iron 31 acts, 102 face resistance piece installation groove 311 of resistance piece mounting hole, elastic pellet is installed on resistance piece mounting hole 102
In resistance piece installation groove 311, after the movement of armature 31 releases the limiting of threshold resistor part 4, elastic pellet is by compression and back resistance
In part mounting hole 102.First embodiment threshold resistor part uses an elastic ball element, before armature movement, elastomeric spherical
Element is contained in resistance piece mounting hole and resistance piece installation groove, and during armature movement, elastic pellet is pacified by compression and back resistance piece
Fill hole, no longer to armature provide resistance, at this point, armature with compared with high acceleration only moved by the effect of electromagnetic force to iron core.It is special
Not, rubber or plastics of the elastomeric spherical element for elasticity.The present embodiment, threshold resistor part and resistance piece mounting structure
Structure it is simple, it is easy to process, it is at low cost.
Illustrate the action process of one embodiment of the utility model electromagnetic tripping apparatus with reference to Fig. 1-4：
Before armature 31 acts, 102 face resistance piece installation groove 311 of resistance piece mounting hole, elastic pellet is installed on resistance
In part mounting hole 102 and resistance piece installation groove 311；When armature 31 under the action of electromagnetic force to iron core when moving, first
It is required that flexible deformation occurs for threshold resistor part 4, so as to concede resistance piece installation groove of the threshold resistor part 4 in armature 31
311, while elastic pellet, by compression and back resistance piece mounting hole 102, after space is conceded, threshold resistor part 4 no longer provides bullet
Property resistance, and only smaller frictional force.Armature 31 is after the elastic deformation force for overcoming threshold resistor part 4, in the fortune to iron core
Only by the frictional force of very little and the spring force of resetting spring 32 during dynamic so that 4 flexible deformation of threshold resistor part gets out of the way sky
Between the force value converted it is suitable with the electromagnetism force value that the wink set is generated under streaming current drop-away value.
As viewed in figures 5-8, second embodiment of electromagnetic tripping apparatus.The threshold resistor part 4 include compression spring 42 and with
The rigid bead 43 that compression spring 42 connects, compression spring 42 are that rigid bead 43 provides elastic force.The side wall protrusion of the coil rack 1 is equipped with
Mounting post 11, the accommodating chamber 111 being internally provided with for accommodating threshold resistor part 4 of mounting post 11, the other end of the compression spring 42
It offsets limiting with the top of accommodating chamber 111, before armature 31 acts, 111 face resistance piece installation groove 311 of accommodating chamber, rigidity is small
Ball 43 and resistance piece installation groove 311 offset limiting, after the limiting of the movement releasing threshold resistor of armature 31 part 4, rigid bead 43
In retraction accommodating chamber 111.Second embodiment threshold resistor part includes compression spring and the rigid bead with compression spring one end, armature movement
Before, the accommodating chamber 111 being internally provided with for accommodating threshold resistor part 4 of mounting post 11, rigid bead and resistance piece installation groove
311 offset limiting, and during armature movement, elastomeric spherical element retraction accommodating chamber 111 no longer provides resistance, at this point, armature to armature
Only to be moved compared with high acceleration by the effect of electromagnetic force to iron core.Rigid bead can also be elastic.The present embodiment, threshold value
Resistance piece and resistance piece mounting structure it is simple and compact for structure, need the side wall protrusion setting mounting post 11 in coil rack, it is right
The limiting of armature is more solid and reliable.
As shown in fig. 7, specifically, further including pin 5, the open top of the mounting post 11, the side wall of mounting post 11 is set
The pin hole 501 of installation pin 5 is useful for, after threshold resistor part 4 is packed into from the top of mounting post 11, pin 5 is packed into pin hole
The other end limiting of 501 pairs of compression springs 42.During installation, rigid bead 43 is packed into from open top one end of mounting post, is then charged into
Compression spring 42 offsets with rigid bead 43, and one end that the side of mounting post 11 is packed into pin 5 and compression spring 42 offsets limiting.From installation
The top of column is packed into, and assembling is efficient and convenient, and pin 5 limits threshold resistor part 4.
As shown in figure 5, the bottom of 11 lateral wall of mounting post and the intersection of 1 lateral surface of coil rack are equipped with reinforcing rib
115.Reinforcing rib 115 plays mounting post 11 booster action, and the reinforcing rib in figure sets one respectively in the opposite sides of mounting post,
Reinforcing rib is class triangle, it is clear that can also fan-shaped or other shapes, quantity can also adjust.
Illustrate the action process of second embodiment of the utility model electromagnetic tripping apparatus with reference to Fig. 5-8：
Before armature movement, the accommodating chamber 111 being internally provided with for accommodating threshold resistor part 4 of mounting post 11, rigid bead
43 offset limiting with resistance piece installation groove 311, during armature movement, rigid 42 retraction accommodating chamber 111 of bead compression press spring, and threshold
Be worth resistance piece 4 no longer to armature provide resistance, only smaller frictional force, at this point, armature with compared with high acceleration only by electromagnetism
The effect of power is moved to iron core.
The third embodiment of the electromagnetic tripping apparatus of the utility model.The threshold resistor part 4 is mounted on coil bone
Gag lever post on frame 1, gag lever post are pivoted on by limit spring on coil rack, with armature 31 close to resetting spring 32
One end limiting cooperation, before armature 31 acts, the receiving that gag lever post one end is transferred to coil rack 1 under the driving of limit spring is empty
One end of armature 31 is limited in chamber 101, the movement of armature 31 pushes gag lever post to rotate out accommodating cavity 101, releases limiting
Limiting of the bar to armature 31, gag lever post are only acted on the side wall of armature 31, no longer provide resistance to armature or resistance is very small
It can ignore.Specifically, can be arranged in the prominent part of mounting post on coil rack 1, mounting post is internally provided with accommodating chamber, and gag lever post leads to
It crosses torsional spring to be pivoted in accommodating chamber, one end is transferred in the accommodating cavity 101 of coil rack 1 under the driving of torsional spring to armature
31 one end is limited, and armature 31, which acts, makes gag lever post rotate back into limiting of the releasing gag lever post to armature 31 in accommodating chamber.
Certainly, gag lever post can not also limit the end of armature 31, but the groove on 31 side wall of armature is limited；Limit spring
Torsional spring can not be used, compression spring or other elastic components may be used；The side wall of gag lever post can also have certain cambered surface to design
To reduce resistance, the scope of protection of the utility model is belonged to.Fig. 9 and Figure 10 is the electromagnetic force of the utility model, resistance with showing
There are electromagnetic force, the resistance versus schematic diagram of technology.
Fig. 9 shows to be the electromagnetic force of the prior art and the displacement force value figure of resistance.Resistance is generally reaction spring generation
Spring force, frictional force ignores.Electromagnetism force value and Resistance Value increase with the increase of electric current simultaneously and keep size one
Cause, continue to increase with electric current, electromagnetic force be more than resistance after, the counter-force of reaction spring will linearly increase, value and
Electromagnetic force is in the same order of magnitude, therefore the axial force value F that armature is subject to is 0 when armature is moved and started, and acceleration is also 0,
And its value is slower in mobile initial procedure growth, certainly will influence to hit the speed that release lever and/or moving contact are supported in this way.
Figure 10 is the electromagnetic force of the utility model and the displacement force value figure of resistance.Likewise, rise the starting stage in electric current,
Electromagnetic force and Resistance Value increase and keep in the same size simultaneously.Continue to increase with electric current, when electromagnetism force value is reaching resistance
After threshold value, threshold resistor part no longer provides resistance, and armature is only acted on by electromagnetic force, and wherein threshold resistor part is contacted with armature
The frictional force of generation and the spring force of resetting spring can be neglected.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
1. a kind of electromagnetic tripping apparatus, including coil rack (1), the coil (2) being wound on coil rack (1) and it is installed on line
Core assembly (3) in ring framework (1), the core assembly (3) including be mounted in coil rack armature (31), for armature
(31) resetting spring (32), iron core (33) and the mandril (34) of reseting elasticity are provided, it is characterised in that：It further includes as armature (31)
The threshold resistor part (4) of resistance is provided in action moment, armature (31) coordinates in initial position and threshold resistor part (4) limiting,
The limiting with threshold resistor part (4) is released after armature (31) is mobile to coordinate.
2. electromagnetic tripping apparatus according to claim 1, it is characterised in that：The middle part of coil rack (1), which is equipped with, accommodates sky
Chamber (101), armature (31) are installed on one end of accommodating cavity (101), and iron core (33) is installed on the another of accommodating cavity (101)
End, resetting spring (32) are installed between armature (31) and iron core (33), and one end and the armature (31) of resetting spring (32) offset,
The other end offsets with iron core (33)；Supported hole (331) is equipped in the middle part of iron core (33), one end of mandril (34) passes through supported hole
(331) it is connect with armature (31), the other end of mandril (34) stretches out iron core (33) outside；When coil (2) is powered, armature (31) gram
The resistance for taking threshold resistor part (4) is drawn to iron core (33) driving mandril (34) ejection.
3. electromagnetic tripping apparatus according to claim 1 or 2, it is characterised in that：The threshold resistor part (4) be mounted on
The sphere with armature (31) resilient engagement on coil rack (1), armature (31) are equipped with the resistance with sphere limiting cooperation
Power part installation groove (311).
4. electromagnetic tripping apparatus according to claim 3, it is characterised in that：The threshold resistor part (4) is elastic pellet.
5. electromagnetic tripping apparatus according to claim 4, it is characterised in that：Resistance piece is equipped on coil rack (1) to pacify
It filling hole (102), the lateral wall of coil (2) from coil rack (1) limits elastic pellet, before armature (31) action, resistance
Part mounting hole (102) face resistance piece installation groove (311), elastic pellet are installed on resistance piece mounting hole (102) and resistance piece
In installation groove (311), after the mobile limiting for releasing threshold resistor part (4) of armature (31), elastic pellet is by compression and back resistance piece
In mounting hole (102).
6. electromagnetic tripping apparatus according to claim 3, it is characterised in that：The threshold resistor part (4) is including compression spring
(42) and with compression spring (42) the rigid bead (43) connecting, compression spring (42) are that rigid bead (43) provides elastic force.
7. electromagnetic tripping apparatus according to claim 6, it is characterised in that：The side wall protrusion of the coil rack (1) is set
There are mounting post (11), the accommodating chamber (111) being internally provided with for accommodating threshold resistor part (4) of mounting post (11), the compression spring
(42) offset limiting at the top of the other end and accommodating chamber (111), before armature (31) action, accommodating chamber (111) face resistance piece
Installation groove (311), rigid bead (43) and resistance piece installation groove (311) offset limiting, the mobile releasing threshold value of armature (31)
After the limiting of resistance piece (4), in rigid bead (43) retraction accommodating chamber (111).
8. electromagnetic tripping apparatus according to claim 7, it is characterised in that：Further include pin (5), the mounting post (11)
Open top, the side wall of mounting post (11) is equipped with the pin hole (501) for installing pin (5), and threshold resistor part (4) is from peace
After the top loading for filling column (11), pin (5) is packed into pin hole (501) and the other end of compression spring (42) is limited.
9. electromagnetic tripping apparatus according to claim 3, it is characterised in that：The installation groove (311) is around armature
(31) annular recess of side wall setting.
10. electromagnetic tripping apparatus according to claim 1 or 2, it is characterised in that：The threshold resistor part (4) is installation
Gag lever post on coil rack (1), gag lever post are pivoted on by limit spring on coil rack, armature (31) action
Before, gag lever post one end is transferred in the accommodating cavity (101) of coil rack (1) under the driving of limit spring and armature (31) is carried out
Limiting, armature (31) is mobile to make gag lever post rotate out accommodating cavity (101), releases limiting of the gag lever post to armature (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721566137.9U CN207587670U (en) | 2017-11-21 | 2017-11-21 | Electromagnetic tripping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721566137.9U CN207587670U (en) | 2017-11-21 | 2017-11-21 | Electromagnetic tripping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207587670U true CN207587670U (en) | 2018-07-06 |
Family
ID=62732483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721566137.9U Withdrawn - After Issue CN207587670U (en) | 2017-11-21 | 2017-11-21 | Electromagnetic tripping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207587670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833807A (en) * | 2017-11-21 | 2018-03-23 | 浙江正泰电器股份有限公司 | Electromagnetic tripping apparatus |
-
2017
- 2017-11-21 CN CN201721566137.9U patent/CN207587670U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833807A (en) * | 2017-11-21 | 2018-03-23 | 浙江正泰电器股份有限公司 | Electromagnetic tripping apparatus |
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