CN108051629A - A kind of breaker load current monitoring device - Google Patents
A kind of breaker load current monitoring device Download PDFInfo
- Publication number
- CN108051629A CN108051629A CN201711212233.8A CN201711212233A CN108051629A CN 108051629 A CN108051629 A CN 108051629A CN 201711212233 A CN201711212233 A CN 201711212233A CN 108051629 A CN108051629 A CN 108051629A
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- circuit breaker
- load current
- current monitoring
- magnetic coil
- electric magnetic
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of breaker load current monitoring device, including being placed in inside Shell of circuit breaker and the heat-conducting piece being fixedly connected with circuit breaker electric magnetic coil and the load current monitoring unit being placed on heat-conducting piece；The load current monitoring unit mainly includes with lower component：Thermal sensing element, internal temperature during circuit breaker electric magnetic coil operation under different rated current is perceived for collecting, one end of the thermal sensing element is close to circuit breaker electric magnetic coil and in horizontally disposed, its other end is set away from circuit breaker electric magnetic coil and in pectinate texture, wherein pectinate texture is for increasing temperature gradient, and a temperature discoloring element is respectively provided at revolution of the pectinate texture away from circuit breaker electric magnetic coil one side；And transparent demonstration eyepiece, temperature discoloring member outboard is placed on Shell of circuit breaker；It the advantage is that there is load current function for monitoring, prompting and warning information can allow user to carry out dilatation, intervention, solution to potentially overloading overload.
Description
Technical field
The invention belongs to breaker technical field, more particularly, to a kind of breaker load current monitoring device.
Background technology
Traditional miniature circuit breaker close a floodgate be powered after, can not be learnt by product current working line current value whether
Still have redundancy for increasing load temporarily, be only capable of offer circuit excess current protective function (under such as 1.13 times of rated current 1 it is small when in
It does not trip, when fault current rises to 1.45 times of rated current, the interior tripping when next 1 is small, under 5 times of rated current
It cannot trip in 100ms, to trip in 20ms under 10 times of rated current, GB10963.1 please be join in detail).
Some conduct pieces (electromagnetic coil) in existing breaker all have certain internal resistance, therefore when the different volume of carrying
Its caloric value is different (because of I^2*R=P, W=Pt) during constant current, that is, causes Shell of circuit breaker internal temperature different.
The content of the invention
The present invention seeks to：A kind of breaker load current monitoring device is provided, is not only simple in structure, is easy to use,
And with load current function for monitoring, prompting and warning information user can be allowed to carry out dilatation to potentially overloading overload, do
In advance, solve, to avoid the protection power failure and emergency maintenance of burst, so as to improve the stability of operation of power networks, reduce maintenance times,
Reduce power grid operation cost.
The technical scheme is that：A kind of breaker load current monitoring device, including being placed in Shell of circuit breaker
Portion and the heat-conducting piece being fixedly connected with circuit breaker electric magnetic coil, the load current monitoring unit being placed on the heat-conducting piece；This is negative
Carrying current monitoring unit mainly includes with lower component：
Thermal sensing element perceives inside temperature during circuit breaker electric magnetic coil operation under different rated current for collecting
Degree, one end of the thermal sensing element is close to circuit breaker electric magnetic coil and in being horizontally disposed with, and the other end is away from circuit breaker electric magnet-wire
It encloses and is in that pectinate texture is set, wherein pectinate texture is for increasing temperature gradient, and in the pectinate texture away from breaker electromagnetism
A temperature discoloring element is respectively provided at the revolution of coil one side；
And transparent demonstration eyepiece, temperature discoloring member outboard is placed on Shell of circuit breaker.
As preferred technical solution, the transparent demonstration eyepiece includes three electric current indicating windows, and refers in adjacent current
Show and barrier block is set between window, and the barrier block is integrally formed with the Shell of circuit breaker.
As preferred technical solution, the load current monitoring unit is fixed on by connector on the heat-conducting piece.
As preferred technical solution, a supporting rod, and the supporting rod are respectively provided in the transparent demonstration eyepiece both sides
It is integrally formed with the Shell of circuit breaker.
It is an advantage of the invention that：
1. the present invention is not only simple in structure, is easy to use, and with load current function for monitoring, prompting and warning information
User can be allowed to carry out dilatation, intervention, solution to potentially overloading overload, to avoid the protection power failure and emergency maintenance of burst,
So as to improve the stability of operation of power networks, maintenance times are reduced, reduce power grid operation cost.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and embodiments：
Fig. 1 is the present invention and the combination schematic internal view of breaker；
Fig. 2 is the present invention and the combination of side view of breaker；
Fig. 3 is the side view of the present invention；
Fig. 4 is the sectional view of the present invention；
Wherein：1 Shell of circuit breaker, 2 circuit breaker electric magnetic coils, 3 heat-conducting pieces, 4 thermal sensing elements, 41 pectinate textures, 5 temperature
Photochromic elements, 6 transparent demonstration eyepieces, 7 barrier blocks, 8 connectors, 9 supporting rods.
Specific embodiment
Embodiment：Referring to figs. 1 to shown in 4, a kind of breaker load current monitoring device, including being placed in Shell of circuit breaker
The heat-conducting piece 3 being fixedly connected inside 1 and with circuit breaker electric magnetic coil 2, the load current monitoring unit being placed on heat-conducting piece 3；It should
Load current monitoring unit mainly includes with lower component：Thermal sensing element 4 perceives open circuit under different rated current for collecting
Internal temperature when device electromagnetic coil 2 is run, one end of the thermal sensing element 4 is set close to circuit breaker electric magnetic coil 2 and in level
It puts, the other end is set away from circuit breaker electric magnetic coil 2 and in pectinate texture 41, and wherein pectinate texture 41 is terraced for increasing temperature
Degree, and it is respectively provided with a temperature discoloring element 5 at the revolution of the pectinate texture 41 away from 2 one side of circuit breaker electric magnetic coil；And
Transparent demonstration eyepiece 6 is placed in 5 outside of temperature discoloring element on Shell of circuit breaker 1.
The present invention transparent demonstration eyepiece 6 include three electric current indicating windows, and between adjacent current indicating window set every
Block 7, and barrier block 7 is integrally formed with Shell of circuit breaker 1.
The load current monitoring unit of the present invention is fixed on by connector 8 on heat-conducting piece 3, and in transparent demonstration eyepiece 6
Both sides are respectively provided with a supporting rod 9, and supporting rod 9 is integrally formed with Shell of circuit breaker 1.
The heat-conducting piece 3 of the present invention can be variously-shaped, and heat-conducting piece 3 is L-type heat-conductive bracket or not office in Fig. 1
It is limited to material, fixed and conduction conductive component thermal energy can be met.
The present invention can be additionally used in the temperature indicator to breaker main circuit when the operation of similar power product simultaneously,
The substantially running temperature of product can be provided to the user, facilitate user's visualizing directly perceived recognizes the relevant operation of product temperature
Information provides easily information for breakdown judge, analysis and early warning etc.
The running current instruction function of the present invention is applied in the conventional product that need to be held according to environment temperature drop, also with root
Corresponding amendment instruction function, form specific as follows are done according to the variation of environment temperature：
The load current value being applicable according to environment temperature
Form holds reference table for the temperature drop of conventional small breaker, which is by being carried out not to large-tonnage product
The index of the actual test data of synthermal difference electric current, in order to can be provided for designer in varying environment and weather
Under the conditions of select more suitable product to reduce the unnecessary trip protection that environment and weather conditions is answered to generate, promote product
Operation stability.However this patent is exactly as key job condition, accordingly, it is capable to combining environmental, weather item using temperature, Wen Sheng
I2t caused by part and running current shows the running current and redundancy condition that have more directive significance to adjust.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (4)
1. a kind of breaker load current monitoring device, which is characterized in that including being placed in Shell of circuit breaker（1）It is internal and with
Circuit breaker electric magnetic coil（2）The heat-conducting piece being fixedly connected（3）And it is placed in the heat-conducting piece（3）On load current monitoring it is single
Member；The load current monitoring unit mainly includes with lower component：
Thermal sensing element（4）, circuit breaker electric magnetic coil under different rated current is perceived for collecting（2）Inside temperature during operation
Degree, the thermal sensing element（4）One end close to circuit breaker electric magnetic coil（2）And in being horizontally disposed with, the other end is away from breaker
Electromagnetic coil（2）And in pectinate texture（41）It sets, wherein pectinate texture（41）For increasing temperature gradient, and in the pectination knot
Structure（41）Away from circuit breaker electric magnetic coil（2）A temperature discoloring element is respectively provided at the revolution of one side（5）；
And transparent demonstration eyepiece（6）, arranged on Shell of circuit breaker（1）On be placed in temperature discoloring element（5）Outside.
2. breaker load current monitoring device according to claim 1, which is characterized in that the transparent demonstration eyepiece
（6）Including three electric current indicating windows, and barrier block is set between adjacent current indicating window（7）, and the barrier block（7）With institute
State Shell of circuit breaker（1）It is integrally formed.
3. breaker load current monitoring device according to claim 1, which is characterized in that the load current monitoring
Unit passes through connector（8）It is fixed on the heat-conducting piece（3）On.
4. breaker load current monitoring device according to claim 1, which is characterized in that in the transparent instruction mesh
Mirror（6）Both sides are respectively provided with a supporting rod（9）, and the supporting rod（9）With the Shell of circuit breaker（1）It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212233.8A CN108051629B (en) | 2017-11-28 | 2017-11-28 | Load current monitoring device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212233.8A CN108051629B (en) | 2017-11-28 | 2017-11-28 | Load current monitoring device for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108051629A true CN108051629A (en) | 2018-05-18 |
| CN108051629B CN108051629B (en) | 2024-07-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212233.8A Active CN108051629B (en) | 2017-11-28 | 2017-11-28 | Load current monitoring device for circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN108051629B (en) |
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| CN108051629B (en) | 2024-07-12 |
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