CN209496798U - A kind of magnetictrip of breaker - Google Patents
A kind of magnetictrip of breaker Download PDFInfo
- Publication number
- CN209496798U CN209496798U CN201920168578.6U CN201920168578U CN209496798U CN 209496798 U CN209496798 U CN 209496798U CN 201920168578 U CN201920168578 U CN 201920168578U CN 209496798 U CN209496798 U CN 209496798U
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- iron core
- push rod
- static
- dynamic iron
- breaker
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Abstract
The utility model provides a kind of magnetictrip of breaker, including connecting the shell formed with upper cover by bottom case, dynamic iron core is set in shell in the motion guide channel of one end, and static contact is fixed on other end inner wall in shell, static iron core is fixed on static contact, and dynamic and static iron core is oppositely arranged；Boss is equipped in the middle part of push rod, push rod tail portion is set in dynamic iron core, and push rod head sequentially passes through static iron core, static contact and shell, and push rod head periphery is equipped with spring, and spring retainer is between push rod boss and static contact；Coil is wound on outside dynamic and static iron core, and the both ends of coil pass through static contact, lug plate and main circuit respectively and connect.The utility model shell integrates guide function, and no guide sleeve design reduces number of parts；Static iron core and static contact riveting are fixed, and without welding, are reduced costs；Spring is between static iron core and push rod, and push rod is pressed in dynamic iron core, and push rod is fixed without buckle or riveting, the risk of no release, and assembly is simple.
Description
Technical field
The utility model relates to a kind of magnetic trip assembley therefor more particularly to a kind of electromagnetic trips applied to miniature circuit breaker
Device.
Background technique
Magnetic trip assembley therefor is the important component of miniature circuit breaker, it is for providing short-circuit protection function.It applies small
Magnetic trip assembley therefor on type breaker generallys use the form of solenoid electromagnet, i.e., in main circuit one coil of series connection, such as
Shown in Fig. 1 and Fig. 2, including the parts such as coil 1, dynamic iron core 2, static iron core 3, guide sleeve 4, spring 5, push rod 6, it is wrapped up by guide sleeve 4 dynamic
Iron core 2, static iron core 3, spring 5, push rod 6, and these parts are fixed and are limited, matched between part using hole axle and is attached together
Match, passes through assemble welding between static iron core 3 and fixing piece 11.Magnetic trip assembley therefor is fixed in bottom case 7, the both ends difference of coil 1
It is welded with static contact 8, lug plate 9 and is connected to main circuit.When there is short circuit current, the electromagnetic force that coil 1 generates is greater than spring 5
Spring force, driving dynamic iron core 2 acts, and drives push rod 6 to act, push rod 6 can be such that free tripping mechanism acts, and keep breaker de-
Button realizes short-circuit protection function.
Above-mentioned existing magnetic trip assembley therefor is disadvantageous in that: since guide sleeve is longer, other parts are shorter, difficult when assembling
Hole axle to be aligned, welding sequence time consumption and energy consumption, therefore assembly efficiency is lower, higher cost；Push rod 6 is only with buckle and dynamic iron
Core 2 cooperates, and snap features are size-limited, and intensity is very low, and there are the risks of release；The cooperation of guide sleeve 4 and static iron core 3 needs spy
Different design and processes, to guarantee to resist the impact of spring 5 without unclamping.
Patent CN103367067A and CN204271010U disclose the guide frame of two kinds of magnetictrips, are all to use
Additional guide frame is oriented to push rod, and structure is complicated, and cost is big, and in order to facilitate the installation of, so that guiding clearance is larger.
Utility model content
The technical problems to be solved in the utility model is how to optimize the structure of magnetic trip assembley therefor, reduces number of parts, letter
Change assembly method, reduces cost.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of electromagnetic trip of breaker
Device, it is characterised in that: including connecting the shell formed with upper cover by bottom case, the motion guide that one end forms dynamic iron core in shell leads to
Road, dynamic iron core are set in the motion guide channel, and static contact is fixed on other end inner wall in shell, and static iron core is fixed on stationary contact
On head, dynamic iron core and static iron core are oppositely arranged；
Boss is equipped in the middle part of push rod, push rod is divided into tail portion and two, head part by boss；The tail portion of push rod is set to dynamic iron
In-core, the head of push rod sequentially pass through static iron core, static contact and shell, and the head periphery of push rod is equipped with spring, spring retainer in
Between the boss and static contact of push rod；
Coil is wound on dynamic iron core, outside static iron core, and the both ends of coil pass through static contact, lug plate and main circuit respectively and connect
It connects.
Preferably, the push rod is long rod shaped structure, and boss is equipped in the middle part of rod, and boss tail portion forms multi-diameter shaft.
Preferably, the dynamic iron core is cylinder, and the hole for accommodating the tail portion of push rod is equipped among the dynamic iron core.
It is highly preferred that the hole is the through-hole or blind hole of single diameter.
It is highly preferred that the bore ends are equipped with the groove for accommodating the boss of push rod, groove diameter is greater than the Kong Zhi
Diameter.
It is highly preferred that the hole depth is more than or equal to the half of dynamic iron core length, the tail portion of push rod and the hole are interference fitted.
Preferably, the static iron core is cylinder, and the through-hole for accommodating the head of push rod is equipped among the static iron core.
Preferably, the static iron core is equipped with static iron core protrusion, and static iron core protrusion is fixed on static contact in corresponding hole.
Preferably, the bottom case is equipped with semicircular slot, and dynamic iron core is movably set in the slot；Iron is moved on bottom case
The tail portion of core is equipped with the side wall for limiting the axial translation of dynamic iron core；Upper lid is equipped with the radial deflection for limiting dynamic iron core
Upper cover protrusion, the slot on upper cover protrusion and bottom case cooperates, and forms the motion guide channel of dynamic iron core.
It is highly preferred that distance of the side wall of the bottom case to groove edge, with dynamic iron core by the sum of the length of slot targeting part,
Greater than the maximum magnetic air gap between dynamic iron core and static iron core.
The magnetictrip of breaker provided by the utility model is in use, under normal circumstances, push rod is pressed in dynamic by spring
On iron core, dynamic iron core is leaned against on the side wall of bottom case；When short-circuit, the electromagnetic force that coil generates is greater than the spring force of spring, will drive
Dynamic iron core is moved toward static iron core direction, and dynamic iron core, which is limited in the motion guide channel of bottom case and upper cover composition, to be moved, at this time
Spring is constantly compressed, until dynamic iron core and static iron core are attracted, push rod pushes the tripping of circuit breaker tripping system, breaker disjunction；
After short trouble excludes, electromagnetic force disappears, and dynamic iron core and push rod are under the action of the spring far from static iron core, until dynamic iron core is leaned on
On the side wall of bottom case.
Compared with prior art, the magnetictrip of breaker provided by the utility model has the following beneficial effects:
1, shell integrates guide function, and by the structure on shell, self-assembling formation motion guide channel, nothing are led after mounting
The design of set, reduces number of parts；
2, static iron core and static contact riveting are fixed, and without welding, are reduced costs；
3, spring is between static iron core and push rod, and push rod is pressed in dynamic iron core, and push rod is solid without buckle or riveting
Fixed, the risk of no release, assembly is simply.
Detailed description of the invention
Fig. 1 is existing magnetic trip assembley therefor schematic diagram；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the magnetictrip schematic diagram of breaker provided in this embodiment；
Fig. 4 is the cross-sectional view of Fig. 3；
Fig. 5 is the guidance feature schematic diagram of bottom case；
Fig. 6 is the riveting fixed character schematic diagram of static iron core；
Fig. 7 is the partial view of upper cover；
Fig. 8 is the partial view of bottom case.
Description of symbols:
1-coil；2-dynamic iron cores；3-static iron cores；4-guide sleeves；5-springs；6-push rods；7-bottom cases；8-stationary contacts
Head；9-lug plates；10-upper covers；11-fixing pieces；31-static iron cores protrusion；71-semicircular slots；72-side walls；101—
Upper cover protrusion.
Specific embodiment
Fig. 3 and Fig. 4 is the magnetictrip schematic diagram of breaker provided in this embodiment, and the electromagnetism of the breaker is de-
Button device includes the magnetic trip assembley therefor that the parts such as coil 1, dynamic iron core 2, static iron core 3, spring 5, push rod 6 are constituted, and magnetic trip assembley therefor is solid
Due between bottom case 7 and upper cover 10, dynamic iron core 2, static iron core 3 be relatively arranged on a left side for inner space between bottom case 7 and upper cover 10,
Right two sides, static contact 8 are fixed between static iron core 3 and bottom case 7, and 6 one end of push rod is inserted in dynamic iron core 2, and 6 other end of push rod is cased with
Spring 5 simultaneously sequentially passes through static iron core 3, static contact 8 and bottom case 7, and coil 1 is wound on dynamic iron core 2, outside static iron core 3, and the two of coil 1
It is welded respectively with static contact 8, lug plate 9 and is connected to main circuit in end.
Push rod 6 is long rod shaped structure, and middle part has boss, and boss can be circumferential, push rod is divided into tail portion and head
Two parts, boss tail portion form multi-diameter shaft.
Dynamic iron core 2 is cylinder, and there is hole in centre, and hole can be the through-hole or blind hole of single diameter, for accommodating push rod 6
Tail portion.Preferably, bore ends have groove, and groove diameter is greater than bore dia, for accommodating the boss of push rod 6.
Static iron core 3 is cylinder, and centre has through-hole, for accommodating the head of push rod 6.
The tail portion of push rod 6 penetrates in the hole of dynamic iron core 2, is resisted against on 2 surface of dynamic iron core on the left of the boss of push rod 6, preferably
, it is resisted against on the bottom surface of groove, forms position limiting structure.Preferably, the hole depth of dynamic iron core 2 is at least the one of 2 length of dynamic iron core
Partly, the tail portion of push rod 6 and the hole transition fit (being also possible to be interference fitted).The head of push rod 6 sequentially passes through the logical of static iron core 3
Hole, static contact 8, bottom case 7, and protrude bottom case 7.The head periphery of push rod 6 is cased with spring 5, and 5 both ends of spring are born against in push rod
On the right side of the 6 boss and left side of static contact 8, forms bias force.
Static contact 8 is fixed on 7 right side inner wall of bottom case.In conjunction with Fig. 6, there are static iron core protrusion 31, static iron core protrusion on static iron core 3
31 are fixed on static contact 8 in corresponding hole, and fixed form can be riveting, upset or welding etc..Static iron core 3 and dynamic iron core
2 opposite surfaces, shape are all circular ring shapes, area approximation, and space utilization rate is higher.
In conjunction with Fig. 5, bottom case 7 is equipped with semicircular slot 71, and dynamic iron core 2 can be in the effect of spring force or electromagnetic force
Under, it is moved in slot 71.In conjunction with Fig. 8,7 upper left side of bottom case is equipped with side wall 72, positioned at the tail portion of dynamic iron core 2, for limiting dynamic iron
The translation of core 2.The part that the distance and dynamic iron core 2 at the side wall 72 of bottom case 7 to the edge of slot 71 are oriented to by slot 71 is greater than dynamic
Maximum magnetic air gap between iron core 2 and static iron core 3.In conjunction with Fig. 7, upper cover 10 is equipped with upper cover protrusion 101, for limiting dynamic iron core
2 radial deflection.In conjunction with Fig. 5 and Fig. 7, after upper cover 10 is installed together with bottom case 7, the slot 71 of upper cover protrusion 101 and bottom case 7
Cooperation forms the motion guide channel of dynamic iron core 2, the movement of dynamic iron core 2 is limited in slot 71, both ensure that assembly in this way
Simply, while again provide the limit of the movement of dynamic iron core 2 (guiding is made in upper cover 10 and bottom case 7).
The magnetictrip of breaker provided in this embodiment is in use, under normal circumstances, push rod 6 is pressed in dynamic by spring 5
On iron core 2, dynamic iron core 2 is leaned against on the side wall 72 of bottom case 7；When short-circuit, the electromagnetic force that coil 1 generates is greater than the spring force of spring 5,
Driving dynamic iron core 2 is moved toward 3 direction of static iron core, the motion guide channel that dynamic iron core 2 is limited in bottom case 7 and upper cover 10 forms
Interior movement, spring 5 is constantly compressed at this time, until dynamic iron core 2 and static iron core 3 are attracted, push rod 6 pushes circuit breaker tripping system de-
Button, breaker disjunction；After short trouble excludes, electromagnetic force disappears, and dynamic iron core 2 and push rod 6 are separate quiet under the action of spring 5
Iron core 3, until dynamic iron core 2 leans against on the side wall 72 of bottom case 7.
It should be understood that up, down, left, right, before and after, front, the back mentioning or may mention in the present specification
The positional terms such as face, top, bottom are defined relative to each construction shown in the drawings, they are opposite concepts,
It is therefore possible to can different location according to locating for it, different use state and correspondingly changed.So also should not be by this
A little or other positional terms are construed to restricted term.
The above, the only preferred embodiment of the utility model, it is in any form and substantive not to the utility model
On limitation, it is noted that for those skilled in the art, in the premise for not departing from the utility model method
Under, several improvement and supplement can be also made, these are improved and supplement also should be regarded as the protection scope of the utility model.It is all ripe
Professional and technical personnel is known, in the case where not departing from the spirit and scope of the utility model, when using disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model；Together
When, all substantial technologicals according to the utility model to the variation, modification and evolution of any equivalent variations made by above-described embodiment,
In the range of still falling within the technical solution of the utility model.
Claims (10)
1. a kind of magnetictrip of breaker, it is characterised in that: outer including being formed by bottom case (7) and upper cover (10) connection
Shell, one end forms the motion guide channel of dynamic iron core (2) in shell, and dynamic iron core (2) is set in the motion guide channel, stationary contact
Head (8) is fixed on other end inner wall in shell, and static iron core (3) is fixed on static contact (8), dynamic iron core (2) and static iron core (3) phase
To setting；
Boss is equipped in the middle part of push rod (6), push rod (6) is divided into tail portion and two, head part by boss；The tail portion of push rod (6) is set to
In dynamic iron core (2), the head of push rod (6) sequentially passes through static iron core (3), static contact (8) and shell, the head periphery of push rod (6)
Equipped with spring (5), spring (5) is limited between the boss of push rod (6) and static contact (8)；
Coil (1) is wound on dynamic iron core (2), static iron core (3) outside, and the both ends of coil (1) pass through static contact (8), lug plate respectively
(9) it is connect with main circuit.
2. a kind of magnetictrip of breaker as described in claim 1, it is characterised in that: the push rod (6) is long rod
Structure, rod middle part are equipped with boss, and boss tail portion forms multi-diameter shaft.
3. a kind of magnetictrip of breaker as described in claim 1, it is characterised in that: the dynamic iron core (2) is cylinder
Shape, the intermediate hole being equipped with for accommodating the tail portion of push rod (6) of the dynamic iron core (2).
4. a kind of magnetictrip of breaker as claimed in claim 3, it is characterised in that: the hole is the logical of single diameter
Hole or blind hole.
5. a kind of magnetictrip of breaker as claimed in claim 3, it is characterised in that: the bore ends are equipped with for holding
Receive push rod (6) boss groove, groove diameter be greater than the bore dia.
6. a kind of magnetictrip of breaker as claimed in claim 3, it is characterised in that: the hole depth is more than or equal to dynamic iron
The half of core (2) length, the tail portion and the hole of push rod (6) are interference fitted.
7. a kind of magnetictrip of breaker as described in claim 1, it is characterised in that: the static iron core (3) is cylinder
Shape, the intermediate through-hole being equipped with for accommodating the head of push rod (6) of the static iron core (3).
8. a kind of magnetictrip of breaker as described in claim 1, it is characterised in that: the static iron core (3) is equipped with
Static iron core protrusion (31), static iron core protrusion (31) are fixed on static contact (8) in corresponding hole.
9. a kind of magnetictrip of breaker as described in claim 1, it is characterised in that: the bottom case (7) is equipped with half
Circular slot (71), dynamic iron core (2) are movably set in the slot (71)；The tail portion of dynamic iron core (2), which is equipped with, on bottom case (7) uses
In the side wall (72) of the axial translation of limitation dynamic iron core (2)；Upper cover (10) is equipped with the radial deflection for limiting dynamic iron core (2)
Upper cover it is raised (101), the slot (71) in upper cover protrusion (101) and bottom case (7) cooperates, and forms the motion guide of dynamic iron core (2)
Channel.
10. a kind of magnetictrip of breaker as claimed in claim 9, it is characterised in that: the side wall of the bottom case (7)
(72) distance for arriving slot (71) edge, with dynamic iron core (2) by the sum of the length of slot (71) targeting part, be greater than dynamic iron core (2) and
Maximum magnetic air gap between static iron core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168578.6U CN209496798U (en) | 2019-01-30 | 2019-01-30 | A kind of magnetictrip of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168578.6U CN209496798U (en) | 2019-01-30 | 2019-01-30 | A kind of magnetictrip of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209496798U true CN209496798U (en) | 2019-10-15 |
Family
ID=68156804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920168578.6U Active CN209496798U (en) | 2019-01-30 | 2019-01-30 | A kind of magnetictrip of breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN209496798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312565A (en) * | 2020-03-31 | 2020-06-19 | 德力西电气有限公司 | Electromagnetic release and circuit breaker |
-
2019
- 2019-01-30 CN CN201920168578.6U patent/CN209496798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312565A (en) * | 2020-03-31 | 2020-06-19 | 德力西电气有限公司 | Electromagnetic release and circuit breaker |
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