CN205230994U - Electromagnetic trip device - Google Patents
Electromagnetic trip device Download PDFInfo
- Publication number
- CN205230994U CN205230994U CN201520769848.0U CN201520769848U CN205230994U CN 205230994 U CN205230994 U CN 205230994U CN 201520769848 U CN201520769848 U CN 201520769848U CN 205230994 U CN205230994 U CN 205230994U
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- iron core
- spring
- push rod
- assembly
- contact
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Abstract
The utility model discloses an electromagnetic trip device only includes iron core subassembly, contact plate, coil pack, yoke and contact subassembly, and the iron core subassembly is kept away from the one end of contact subassembly and can be loaded and unloaded, and the spring in the iron core subassembly can be changed. The iron core subassembly only includes: insulating sleeve, quiet iron core, ejector pin, spring, move iron core and splint, the first end at the insulating sleeve is fixed to quiet iron core, and first end is close to the contact subassembly, the spring housing is on the ejector pin, hold to the second end from the first of insulating sleeve, be in proper order: quiet iron core, ejector pin and spring, move iron core, splint, the contact subassembly is kept away from to the second end, the second end at the insulating sleeve can be installed with loading and unloading to splint. The utility model discloses still explained an electromagnetic trip device's assembly method, this electromagnetic trip device only includes iron core subassembly, contact plate, coil pack, yoke and contact subassembly, and the iron core subassembly is kept away from the one end of contact subassembly and can be loaded and unloaded, and this assembly method includes: keep away from the one end of contact subassembly dismantles the spring and changes from the iron core subassembly.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, more particularly, relates to the electromagnetic tripping apparatus of circuit breaker.
Background technology
In low-pressure electronic equipment product, along with market competition is more and more fierce, except improving constantly the performance requirement of product, the material cost of product self and human cost etc. are also thereupon more and more higher.For the competitiveness of improving product, need be optimized original structural design of product, to reduce material cost and human cost, guarantee that properties of product are constant simultaneously.
In miniature circuit breaker, traditional electromagnetic tripping apparatus, the product that especially rated current specification is larger, what usually adopt is integrated closed design, and namely after assembling, the parts of electromagnetic tripping apparatus inside cannot be changed.With regard to electromagnetic tripping apparatus, wherein easily there is aging parts mainly spring.Especially, for the verification of circuit breaker short circuit temporal properties, spring plays crucial effect.If adopt existing closed design, so when circuit breaker short circuit instantaneous verification characteristic is defective, whole electromagnetic tripping apparatus must be changed, the material cost changed is uprised.
Chinese patent CN1287677 discloses a kind of magnet system for power protection switch.This magnet system has dress sleeve pipe in the bracket, and this sleeve pipe is surrounded by a coil and has one can the armature of movement in sleeve pipe.Armature leans against when resting position on the stop surface of structure inside sleeve pipe, and by one under pre-pressure of the spring the push rod leaned against on armature be maintained at there.This push rod is loaded by a spring, and the side of spring is bearing on push rod and on another sorrowful inserts be bearing in sleeve pipe.The patent provides a kind of can the magnet system of removable parts part, the material cost changed is lowered.But the number of spare parts of CN1287677 is more, particularly owing to there is a small volume, inserts that shape is more complicated, makes the installation of whole magnet system, the process of replacing becomes complicated.Therefore the human cost of CN1287677 is still higher.In today that human cost is more and more higher, only reduce material cost and the reduction of ignoring human cost is inadequate.
Utility model content
The utility model is intended to propose that a kind of structure is simple, amount of parts is few, electromagnetic tripping apparatus easy to loading and unloading.
According to an embodiment of the present utility model, propose a kind of electromagnetic tripping apparatus, only comprise core assembly, contact plate, coil block, yoke and contact assembly, core assembly can load and unload away from one end of contact assembly, and the spring in core assembly can be changed.
In one embodiment, core assembly is fixed in yoke, and coil block is wrapped in outside core assembly, and coil block is connected with contact plate and contact assembly.
In one embodiment, core assembly only comprises: insulating sleeve, static iron core, push rod, spring, dynamic iron core and clamping plate; Static iron core is fixed on the first end of insulating sleeve, and first end is near contact assembly; Spring housing is on push rod; From first end to the second end of insulating sleeve, be followed successively by: static iron core, push rod and spring, dynamic iron core, clamping plate, the second end is away from contact assembly; Clamping plate are detachably arranged on the second end of insulating sleeve.
In one embodiment, the second end of push rod forms cap-shaped structure, and the diameter of cap-shaped structure is greater than the diameter of spring; Static iron core has spring groove and perforate, the first end of push rod passes from perforate, and spring is arranged in spring groove; Second end of push rod withstands dynamic iron core; Dynamic iron core can move in insulating sleeve.
In one embodiment, without big current in coil block, the spring force of spring makes dynamic iron core away from static iron core and near clamping plate, and the first end of push rod does not touch contact assembly, and contact assembly closes; Have big current in coil block, coil produces magnetic field, overcomes spring force and moves to static iron core, promote push rod under dynamic iron core electromagnetic force, and the first end of push rod touches contact assembly, and contact assembly is opened.
Electromagnetic tripping apparatus of the present utility model is optimized design to structure, when guaranteed performance is constant, increase the removable design of spring, spring can be changed in ground when making circuit breaker short circuit temporal properties verify defective, and the operation changing spring is very convenient, can effectively save material cost and human cost.
Accompanying drawing explanation
The above and other feature of the utility model, character and advantage are by more obvious by what become below in conjunction with the description of drawings and Examples, and Reference numeral identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 discloses the structure chart of the electromagnetic tripping apparatus according to an embodiment of the present utility model.
Fig. 2 discloses the cross section structure of core assembly in the electromagnetic tripping apparatus according to an embodiment of the present utility model.
Fig. 3 discloses the assemble sequence schematic diagram of the electromagnetic tripping apparatus according to an embodiment of the present utility model.
Embodiment
The utility model is intended to propose a kind of electromagnetic tripping apparatus for circuit breaker, takes into account the reduction of material cost and human cost.The temporal properties of electromagnetic tripping apparatus are mainly determined by the performance of spring, when temporal properties appearance is defective or needs regulate, realize, and miscellaneous part do not need to change substantially mainly through changing spring.Therefore, making spring replaceable, is the means reducing material cost.In addition, spring also needs easily to change, if the complex structure of electromagnetic tripping apparatus, parts are too much, the operation changing spring can be caused too complicated, cause the rising of human cost.Therefore, the overall structure of electromagnetic tripping apparatus also needs simply, with remove and install.
Shown in figure 1, Fig. 1 discloses the structure chart of the electromagnetic tripping apparatus according to an embodiment of the present utility model.This electromagnetic tripping apparatus comprises core assembly 101, contact plate 102, coil block 103, yoke 104 and contact assembly 105.It should be noted that, electromagnetic tripping apparatus of the present utility model only comprises these parts: core assembly 101, contact plate 102, coil block 103, yoke 104 and contact assembly 105.
Yoke 104 is for installing secured core assembly 101, contact plate 102, coil block 103 and contact assembly 105.As shown in the figure, yoke 104 comprises pedestal 141 and is arranged on the support 142 on pedestal.Support 142 is for secured core assembly 101 and coil block 103.Continue with reference to shown in figure 1, core assembly 101 is arranged on the support 142 of yoke 104, usually can arrange a support 142 respectively at the two ends of core assembly 101, with secured core assembly 101.Coil block 103 is wrapped in outside core assembly 101, in the illustrated embodiment in which, coil block 103 comprises the inner core of conduction and the external coating of insulation, in the region of coil block 103 with core assembly 101 joint, at inner core outer cladding external coating to provide insulation.Contact plate 102 is connected with one end of coil block 103, and contact plate 102 is connected to provide conductive path with the inner core of coil block 103.Contact assembly 105 is arranged in yoke 104, in the illustrated embodiment in which, the pedestal 141 that contact assembly 105 is arranged on yoke 104 is positioned at one end of pedestal 141.The other end of coil block 103 is connected with contact assembly 105, and contact assembly 105 is also be connected to provide conductive path with the inner core of coil block 103.Coil block 103 is linked in circuit by contact plate 102 and contact assembly 105.
Fig. 2 discloses the cross section structure of core assembly in the electromagnetic tripping apparatus according to an embodiment of the present utility model.As shown in Figure 2, core assembly 101 comprises insulating sleeve 111, static iron core 112, push rod 114, spring 113, dynamic iron core 115 and clamping plate 116.It should be noted that, core assembly of the present utility model only comprises these parts: insulating sleeve 111, static iron core 112, push rod 114, spring 113, dynamic iron core 115 and clamping plate 116.Static iron core 112 is arranged on the first end of insulating sleeve 111, and this first end is the side near contact assembly 105 place.Static iron core 112 have spring groove and perforate.Spring 113 is enclosed within push rod 114, and the end of the second end of push rod 114 forms a cap-shaped structure, and the diameter of this cap-shaped structure is greater than the diameter of spring 113, and therefore spring 113 can not be deviate from from the second end of push rod 114.Spring 113 is arranged in spring groove, and the first end of push rod 114 passes static iron core 112 and passes from perforate, extends to the outside of insulating sleeve 111.The length of push rod 114 is greater than the length of static iron core 112, and dynamic iron core 115 is arranged in insulating sleeve 111 movably, and the second end of push rod 114 withstands dynamic iron core 115.Clamping plate 116 are arranged on the second end of insulating sleeve 111, and the second end is the side away from contact assembly 105 place.Not having large electromagnetic force to deposit in case, due to the effect of spring 113, dynamic iron core 115 pushes up to the direction away from static iron core 112 by the second end of push rod 114.At opposite side, the position of dynamic iron core 115 is blocked by clamping plate 116, so dynamic iron core 115 is just clipped between clamping plate 116 and push rod 114.In the illustrated embodiment in which, the centre bit of clamping plate 116 is equipped with a groove, and dynamic iron core 115 has outstanding backstay, and backstay stretches in groove and dynamic iron core 115 is fixed in clamping plate 116.It should be noted that, clamping plate 116 mainly play the effect of location for dynamic iron core 115, might not be limited in illustrated structure, and other structures that can play positioning action can use.Coil block 113 is wrapped on the outer surface of insulating sleeve 111.
When there is not abnormal big current in circuit, the magnetic field that coil block 113 produces is more weak, and dynamic do not have large electromagnetic force between iron core 115 and static iron core 112.The spring force of spring 113 makes dynamic iron core 115 be separated with static iron core 112, and the position due to static iron core 112 is fixing, and dynamic iron core 112 is pushed to the position near clamping plate 116.The first end of push rod 114 stretches out outside static iron core 112 slightly, or does not stretch out nearly iron core 112, and in a word, the first end of push rod 114 can not contact with contact assembly 105, and contact assembly 105 remains closed, and circuit maintains on-state.Occur abnormal big current in circuit, such as, when there is short trouble, coil block 113 produces high-intensity magnetic field, moves and occurs large electromagnetic force between iron core 115 and static iron core 112.This electromagnetic force is greater than the spring force of spring 113, makes dynamic iron core 115 and static iron core 112 under the effect of electromagnetic force, overcome the spring force of spring 113 and absorption close to each other.Dynamic iron core 115 promotes push rod 114, and the first end of push rod 114 is extended to the outside of static iron core 112, and the first end of push rod 114 contacts with contact assembly 115, contact assembly 105 is opened, to cut off circuit.
Fig. 3 discloses the assemble sequence schematic diagram of the electromagnetic tripping apparatus according to an embodiment of the present utility model.As shown in Figure 3, when assembling, first coil block 103 is wound on insulating sleeve 111, then insulating sleeve 111 is installed in yoke 104, then contact plate 102, contact assembly 105 are respectively installed on yoke or coil block.Above-mentioned parts are fixed together, such as adopt and be welded and fixed.Like this, overall parts 108 are just constituted.Next be that core assembly 101 is installed.Static iron core 112 in core assembly 101 is the first ends being fixed on insulating sleeve 111 in advance, so be fixed in above-mentioned parts 108.Spring 113 is enclosed within push rod 114, then loads push rod 114, dynamic iron core 115 and clamping plate 116 successively, form complete electromagnetic tripping apparatus.Push rod 114, dynamic iron core 115 and clamping plate 116 load from the second end of insulating sleeve 111, second end of insulating sleeve 111 is the one end away from contact assembly 105, comparatively speaking, this position is away from the intensive region of parts in circuit breaker, therefore sufficient operating space can be provided to operating personnel, convenient operation.The temporal properties of electromagnetic tripping apparatus are mainly determined by the performance of spring 113, when temporal properties appearance is defective or needs regulate, realize mainly through changing spring 113.Shown in figure 3, changing spring 113 only needs dismounting three parts: pull down clamping plate 116, takes out dynamic iron core 115, takes out push rod 114, i.e. replaceable spring 113.After having changed spring, equally only need to reload above-mentioned three parts in order.Be all in the side away from contact assembly for the dismounting of spring in the utility model, namely carry out away from the position of parts close quarters in circuit breaker, therefore operating space is large, and operation easier is low.In addition, the utility model changes spring only needs dismounting three parts, and these three parts are all the parts than larger volume, do not relate to the parts that volume is little.And the installation site of these parts is limited by insulating sleeve, static iron core etc., locate very convenient, operation easier is low, effectively can save human cost.
Electromagnetic tripping apparatus of the present utility model is optimized design to structure, when guaranteed performance is constant, increase the removable design of spring, spring can be changed in ground when making circuit breaker short circuit temporal properties verify defective, and the operation changing spring is very convenient, can effectively save material cost and human cost.
Above-described embodiment is available to be familiar with person in the art to realize or to use of the present utility model; those skilled in the art can when not departing from utility model thought of the present utility model; various modifications or change are made to above-described embodiment; thus protection range of the present utility model not limit by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (5)
1. an electromagnetic tripping apparatus, is characterized in that, only comprises core assembly, contact plate, coil block, yoke and contact assembly, and described core assembly can load and unload away from one end of contact assembly, and the spring in core assembly can be changed.
2. electromagnetic tripping apparatus as claimed in claim 1, it is characterized in that, described core assembly is fixed in yoke, and described coil block is wrapped in outside core assembly, and described coil block is connected with contact plate and contact assembly.
3. electromagnetic tripping apparatus as claimed in claim 1, it is characterized in that, described core assembly only comprises: insulating sleeve, static iron core, push rod, spring, dynamic iron core and clamping plate;
Static iron core is fixed on the first end of insulating sleeve, and described first end is near contact assembly;
Spring housing is on push rod;
From first end to the second end of insulating sleeve, be followed successively by: static iron core, push rod and spring, dynamic iron core, clamping plate, described second end is away from contact assembly;
Described clamping plate are detachably arranged on the second end of insulating sleeve.
4. electromagnetic tripping apparatus as claimed in claim 3, is characterized in that,
Second end of described push rod forms cap-shaped structure, and the diameter of cap-shaped structure is greater than the diameter of spring;
Described static iron core has spring groove and perforate, the first end of push rod passes from perforate, and spring is arranged in spring groove;
Second end of push rod withstands dynamic iron core;
Dynamic iron core can move in insulating sleeve.
5. electromagnetic tripping apparatus as claimed in claim 4, is characterized in that,
Without big current in coil block, the spring force of spring makes dynamic iron core away from static iron core and near clamping plate, and the first end of push rod does not touch contact assembly, and contact assembly closes;
Have big current in coil block, coil produces magnetic field, overcomes spring force and moves to static iron core, promote push rod under dynamic iron core electromagnetic force, and the first end of push rod touches contact assembly, and contact assembly is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769848.0U CN205230994U (en) | 2015-09-30 | 2015-09-30 | Electromagnetic trip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769848.0U CN205230994U (en) | 2015-09-30 | 2015-09-30 | Electromagnetic trip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230994U true CN205230994U (en) | 2016-05-11 |
Family
ID=55906040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520769848.0U Withdrawn - After Issue CN205230994U (en) | 2015-09-30 | 2015-09-30 | Electromagnetic trip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185670A (en) * | 2015-09-30 | 2015-12-23 | 上海电科电器科技有限公司 | Electromagnetic tripping device |
-
2015
- 2015-09-30 CN CN201520769848.0U patent/CN205230994U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185670A (en) * | 2015-09-30 | 2015-12-23 | 上海电科电器科技有限公司 | Electromagnetic tripping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20180911 |
|
| AV01 | Patent right actively abandoned |