CN206558457U - A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism - Google Patents
A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism Download PDFInfo
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- CN206558457U CN206558457U CN201720130400.3U CN201720130400U CN206558457U CN 206558457 U CN206558457 U CN 206558457U CN 201720130400 U CN201720130400 U CN 201720130400U CN 206558457 U CN206558457 U CN 206558457U
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- copper mold
- mold block
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- shaped copper
- tripping mechanism
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Abstract
The utility model discloses a kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism, belong to low-voltage circuit breaker technical field.The utility model includes the first U-shaped copper mold block, the second copper mold block and the 3rd U-shaped copper mold block stacked on top of one another successively, wherein first U-shaped copper mold block and the 3rd U-shaped copper mold block are U-shaped opening structure, two U-shaped openings are oppositely arranged, second copper mold block is arranged between the first U-shaped copper mold block and the 3rd U-shaped copper mold block, first U-shaped copper mold block, the second copper mold block and the 3rd U-shaped copper mold block are connected with brass bolt, and the oil damper bucket for setting oil damping hydraulic-electromagnetic tripping mechanism is used between the first U-shaped copper mold block and the U-shaped opening of the 3rd U-shaped copper mold block.The utility model enables high current coil to be realized in low-voltage, high-current breaker of plastic casing, and loop construction is geometrical rule body, processes simple, easy to assembly, reduces the cost of processing.
Description
Technical field
The utility model belongs to low-voltage circuit breaker technical field, relates generally to a kind of for oil damping hydraulic pressure electricity in breaker
The current coil of magnetic-type tripping mechanism.
Background technology
Breaker refers to can turn on, carry and disjunction external circuit is operated in electric current under the conditions of normal circuit, also can
Connected under the improper circuit condition of defined under (typical case has overload and both short-circuit forms), carry certain time and wink
Between breaking current a kind of physical mechanical switch electrical equipment.
Low-voltage circuit breaker is one kind of breaker, and its whole system generally comprises main circuit unit, tripping mechanism, operation machine
Structure etc..Wherein, main circuit unit is connected with external circuit, and operating mechanism is used to be switched on or switched off main circuit unit, tripping mechanism
Then it is responsible for, when improper circuit condition occurs, main circuit unit being disconnected by operating mechanism.Therefore, tripping mechanism is disconnected to low pressure
The interrupting performance of road device has vital influence, must particularly when low-voltage circuit breaker runs into overload or short circuit current flow
Disconnection main circuit unit (even circuit breaker tripping) must be able to ensure that, so as to ensure the safety of breaker and load end equipment.
Conventional breaker tripping mechanism, mainly includes Thermomagnetic type tripping mechanism and electronic type tripping mechanism.But, this two
Plant tripping mechanism and many problems often occur.For example, in more hot working environment, thermo magnetic trip release mechanism can be jumped frequently
Lock, has arrived the relatively low environment of operating temperature and has not tripped easily, thus easily causes whole distribution branch roads system paralysis and sets
The security of the lives and property loss of standby and personnel.And electronic type tripping mechanism can not shield the interference of electromagnetic wave, often therefore produce
Raw mistrip phenomenon, while the mechanism of the type can not be applied to protection and the big occasion of temperature change of direct current electrical domain.
At present, oil damping hydraulic-electromagnetic tripping mechanism is also being used on-board the circuit breaker.Oil damping hydraulic-electromagnetic is threaded off
Mechanism is main by current coil, oil damper bucket, iron core, yoke, armature, pole shoe, damping spring (interior reaction spring), damping fluid
Etc. composition.The mechanism has the characteristics of overload delay and instantaneous short circuit.But, current oil damping force hydraulic electromagnetic releaser mechanism
Still be mainly used in small-size moulded case circuit breaker such as specified below low current 100A, and 100A above is without.This is mainly
Because the tripping force of oil damping hydraulic-electromagnetic tripping mechanism in itself is smaller, the tripping force of the tripping system of high current is relatively
Greatly, it is impossible to be directly applied for in larger rated current low-pressure plastic shell circuit breaker.And this is de- with oil damping hydraulic-electromagnetic
The design of the current coil of buckle mechanism has substantial connection.
Why current coil plays very important effect in oil damping hydraulic-electromagnetic tripping mechanism, be because
Current coil produces magnetic field when in current coil by electric current, therefore the structure design of current coil is directly connected to produced magnetic
The size of field, and the size in electromagnetism magnetic field directly affects (tripping characteristic) performance of oil damping hydraulic-electromagnetic tripping mechanism.
Traditional current coil designs the method using helix directly-wound, but the current coil of this helix directly-wound is only used for
In low current low-voltage circuit breaker oil damping hydraulic-electromagnetic tripping mechanism, it is impossible to using in the larger tie breaker of rated current
In oil damping hydraulic-electromagnetic tripping mechanism, its reason is to meet its master in the tripping system space of low-voltage circuit breaker to return
The current conduction busbar square on road, such as more than 400A high current is according to 1mm2If Current calculation by 3.5A, it is assumed that existing
It is 630A in the rated current of low-voltage circuit breaker, the cross-sectional area of conductive bus bar is accomplished by 180mm2.For the angle of technique,
It is that can not be realized by the way of direct coiling that the busbar of so big galvanic circle, which completes so small coil diameter,.
The content of the invention
The utility model purpose is：In order to oil damping hydraulic-electromagnetic tripping mechanism is applied to there is larger specified electricity
There is provided a kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism in stream low-pressure plastic shell circuit breaker.
Specifically, the utility model is realized using following technical scheme：One kind is used for oil damping hydraulic-electromagnetic
The current coil of tripping mechanism, the coil includes the first U-shaped copper mold block, the second copper mold block and the 3rd U stacked on top of one another successively
Type copper mold block, wherein the first U-shaped copper mold block and the 3rd U-shaped copper mold block are U-shaped opening structure, two U-shaped openings are oppositely arranged,
Second copper mold block is arranged between the first U-shaped copper mold block and the 3rd U-shaped copper mold block, the first U-shaped copper mold block and the 3rd U-shaped copper mold
It is used for the oil damper bucket that oil damping hydraulic-electromagnetic tripping mechanism is set between the U-shaped opening of block.
By three, copper module composition current coil stacked on top of one another, i.e. current coil use stacked knot on the whole successively
Structure, without making coil by way of traditional coiling.The design of U-shaped opening so that there is one in the middle of current coil
The internal diameter of coil, inserts the oil damper bucket of oil damping hydraulic-electromagnetic tripping mechanism in the internal diameter of this coil, so as to
The source of tripping force is provided for oil damping hydraulic-electromagnetic tripping mechanism.The setting of second copper mold block, then be capable of regulating winding
Height size, can be applied to the various occasions for the different size of electromagnetic field that different current specifications are produced, such as in same electricity
Flow in cage, exchange different the second copper mold block of height different specification electric currents can be allowed to complete breakers and precisely thread off tripping operation, together
When can also realize different current specification coils the squared magnitude of busbar it is interchangeable.
Above-mentioned technical proposal is further characterized by, and the second copper mold block is rectangular parallelepiped structure.
Above-mentioned technical proposal is further characterized by, and the first U-shaped copper mold block and the 3rd U-shaped the U-shaped of copper mold block are opened
Mouthful by one is long and the other is short, two sides are constituted, and the second copper mold block is arranged at the short side side of the first U-shaped copper mold block and the 3rd U-shaped
Between the short side side of copper mold block.
Above-mentioned technical proposal is further characterized by, the first U-shaped copper mold block, the second copper mold block and the 3rd U-shaped copper mold block
Connected with brass bolt.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model current coil is simple in construction, it is easy to processing and assembling, for technological angle, has broken in volume
Determining the current coil under the use environment of the larger low-voltage circuit breaker of electric current in oil damping hydraulic-electromagnetic tripping system can not adopt
With the technical bottleneck of traditional direct winding method, so that for oil damping hydraulic-electromagnetic tripping mechanism is applied to larger
Rated current low-pressure plastic shell circuit breaker in provide technical support.
2nd, the magnetic field produced by the utility model current coil is more than helix directly-wound current coil, so in oil damping
In hydraulic-electromagnetic tripping mechanism, the electromagnetic force that the iron core in oil damping hydraulic-electromagnetic tripping mechanism is subject at bottom compared with
Greatly, it is easy to oil damping hydraulic-electromagnetic tripping system to be achieved in heavy current breaker.
Brief description of the drawings
Fig. 1 is the main schematic diagram of the utility model current coil.
Fig. 2 is the side view of the utility model current coil.
Fig. 3 is the schematic diagram of three modules of the utility model current coil.
Label in figure：1 is the first U-shaped copper mold block, and 2 be the second copper mold block, and 3 be the 3rd U-shaped copper mold block, and 5 be breaker
Quiet conducting bridge, 9 for oil damping hydraulic-electromagnetic tripping mechanism oil damper bucket, 4,6,7,8 be brass bolt, and 41 be open circuit
The load end of device.
Embodiment
With reference to embodiment and the utility model is described in further detail referring to the drawings.
Embodiment 1：
One embodiment of the present utility model, is a kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism,
Its structure is as shown in Figure 1 and Figure 2.The coil is made up of the first U-shaped copper mold block 1, the second copper mold block 2, the 3rd U-shaped copper mold block 3, and three
Individual module is stacked on top of one another successively.
First U-shaped 3 pieces of the copper mold of U-shaped copper mold block 1 and the 3rd is U-shaped opening structure, and two U-shaped openings are necessary in assembling
Relatively.The U-shaped opening of first U-shaped copper mold block 1 is hemicycle, constitutes half-turn coil, the U-shaped opening of same 3rd U-shaped module 3
For hemicycle, thus two U-shaped mouths are relative, just constitute a circle coil.
Second copper mold block 2 is arranged between the first U-shaped copper mold block 3 of U-shaped copper mold block 1 and the 3rd, plays turn-on current
Effect.The interchangeable module different for height of this copper mold block, in different current applications, plays the effect of regulating winding height,
So that coil can be applied to the various occasions for the different size of electromagnetic field that different current specifications are produced, such as same
In electric current cage, exchange different the second copper mold block of height different specification electric currents can be allowed to complete breakers and precisely thread off tripping operation,
The squared magnitude of busbar is interchangeable when can also realize different current specification coils simultaneously.
First U-shaped copper mold block 1, the second copper mold block 2 and the 3rd U-shaped copper mold block 3 need to be connected with brass bolt.It is connected with breaker
When, the quiet conducting bridge 5 of breaker is connected with the first U-shaped copper mold block 1 by brass bolt 8, and brass bolt 6 and brass bolt 7 are connected to
One U-shaped copper mold block 1, the second copper mold block 2 and the 3rd U-shaped copper mold block 3, the load end 41 of the 3rd U-shaped copper mold block 3 and breaker pass through
Brass bolt 4 is connected.The oil damper bucket 9 of oil damping hydraulic-electromagnetic tripping mechanism is placed in the first U-shaped He of copper mold block 1 in breaker
Between the U-shaped opening of 3rd U-shaped copper mold block 3
As shown in figure 3, the U-shaped opening of the first U-shaped copper mold block 3 of U-shaped copper mold block 1 and the 3rd is by one is long and the other is short two sides
Constitute, between the second copper mold block 2 is arranged at the short side of the first U-shaped copper mold block 1 in the short side of the 3rd U-shaped copper mold block 3.Three is big
The structure of copper mold block is very simple, and especially the second copper mold block 2, is exactly a cuboid, and two holes are provided with cuboid
(connection brass bolt use), it is simple in construction, it is easy to processing and assembling, save cost.
According to electromagnetic theory knowledge, hot-wire coil will produce magnetic field around it, and ratio Ao-Sa in electromagnetism cuts down you
Law can try to achieve the magnetic field produced around hot-wire coil.Electromagnetic finite member can be carried out to coil using finite element technique to calculate, root
According to finite element theory and principle, current coil is simplified to limited element calculation model.In order to compare under equal conditions two kinds of electricity
The size in the magnetic field produced by streamline circle, can be designed with same iron core to compare two in the same location of two current coils
The size of suffered electromagnetic force in individual coil.
In general, the material of the iron core in breaker in the oil damper bucket 9 of oil damping hydraulic-electromagnetic tripping mechanism
For DT4E, it is magnetized in magnetic field, and the electromagnetic force received in two different coils is shown in table 1：
The size of the same iron core of table 1 suffered electromagnetic force in two different coils
| Coil | The size of electromagnetic force |
| The current coil of the present embodiment | 0.44264N |
| Screw type current coil | 0.3442N |
It can be seen that, the current coil of the present embodiment can actually reach following three points benefit：(1) current coil is creative
It is designed to be successfully applied in the larger current low-voltage breaker oil damping tripping system of rated current, for technological angle
Having broken current coil in the larger low-voltage circuit breaker oil damping tripping system of rated current can not be using traditional direct
The technical bottleneck of winding method；(2) as shown in table 1, magnetic field under equal conditions produced by the current coil is more than helix
Directly-wound current coil；(3) the current coil processing technology is simple, cost-effective.
Although the utility model is disclosed as above with preferred embodiment, embodiment is not for limiting the utility model
's.Any equivalence changes done in the spirit and scope for not departing from the utility model or retouching, also belong to this practicality new
The protection domain of type.Therefore the content that protection domain of the present utility model should be defined using claims hereof is mark
It is accurate.
Claims (4)
1. a kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism, it is characterised in that：Including stacked on top of one another successively
The first U-shaped copper mold block, the second copper mold block and the 3rd U-shaped copper mold block, wherein the first U-shaped copper mold block and the 3rd U-shaped copper mold block are equal
For U-shaped opening structure, two U-shaped openings are oppositely arranged, and the second copper mold block is arranged on the first U-shaped copper mold block and the 3rd U-shaped copper mold
It is used to set oil damping hydraulic-electromagnetic to take off between block, between the first U-shaped copper mold block and the U-shaped opening of the 3rd U-shaped copper mold block
The oil damper bucket of buckle mechanism.
2. the current coil according to claim 1 for oil damping hydraulic-electromagnetic tripping mechanism, it is characterised in that：Institute
The second copper mold block is stated for rectangular parallelepiped structure.
3. the current coil according to claim 2 for oil damping hydraulic-electromagnetic tripping mechanism, it is characterised in that institute
Stating the U-shaped opening of the first U-shaped copper mold block and the 3rd U-shaped copper mold block, two sides are constituted by one is long and the other is short, second copper mold
Between block is arranged at the short side of the first U-shaped copper mold block in the short side of the 3rd U-shaped copper mold block.
4. according to any described current coil for oil damping hydraulic-electromagnetic tripping mechanism of claim 1 ~ 3, its feature
It is, the first U-shaped copper mold block, the second copper mold block and the 3rd U-shaped copper mold block are connected with brass bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720130400.3U CN206558457U (en) | 2017-02-14 | 2017-02-14 | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720130400.3U CN206558457U (en) | 2017-02-14 | 2017-02-14 | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206558457U true CN206558457U (en) | 2017-10-13 |
Family
ID=60011112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720130400.3U Withdrawn - After Issue CN206558457U (en) | 2017-02-14 | 2017-02-14 | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206558457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068505A (en) * | 2017-02-14 | 2017-08-18 | 张文红 | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism |
-
2017
- 2017-02-14 CN CN201720130400.3U patent/CN206558457U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068505A (en) * | 2017-02-14 | 2017-08-18 | 张文红 | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism |
| CN107068505B (en) * | 2017-02-14 | 2020-03-24 | 张文红 | Current coil for oil damping hydraulic electromagnetic tripping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171013 Effective date of abandoning: 20200324 |