CN110335782A - A kind of overcurrent protection relay - Google Patents
A kind of overcurrent protection relay Download PDFInfo
- Publication number
- CN110335782A CN110335782A CN201910682897.3A CN201910682897A CN110335782A CN 110335782 A CN110335782 A CN 110335782A CN 201910682897 A CN201910682897 A CN 201910682897A CN 110335782 A CN110335782 A CN 110335782A
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- Prior art keywords
- iron core
- connecting terminal
- fixed
- dynamic
- overcurrent protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/12—Ventilating; Cooling; Heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Patch Boards (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to relay field, specifically a kind of overcurrent protection relay, including container structure, fixed plate, filter structure, position limiting structure, on-off structure, control structure, resetting structure and radiator structure；The filter structure contacts at the on-off structure, and then convenient for driving the filter structure to shake by the on-off structure, and then convenient for intuitively reacting the break-make situation of the on-off structure according to the filter structure deformation quantity, effectively prevent dust from entering the inside of the containing box simultaneously, and then substantially increase stability in use energy, when the push rod contradicts the filter screen, the filter screen is wavy shaped configuration, keeps the deformation quantity of the filter screen bigger while increasing dust-filtering area；The control structure is set to the inside of the on-off structure, and then improves the heat dissipation performance of the inside of the container structure, while effectivelying prevent the on-off structure and the control structure to hit and damaging, and then substantially increasing stability.
Description
Technical field
The present invention relates to relay field, specifically a kind of overcurrent protection relay.
Background technique
Overcurrent protection relay integrates protection, monophase current measurement, control function, and is realized by in-com interface
With the data sharing and remote control of long-range upper host, and by in-con interface realize with the data sharing of long-range upper host with
Distant control function, over-current protection relay realize the protection to element by overcurrent protection movement, and overcurrent protection one
As be divided into specified time and inverse-time overcurrent protection, current quick, the one-phase ground protection of isolated neutral system, by electricity
Current relay, the time relay and signal relay composition, current transformer and electric current relay form measuring cell, for sentencing
Open close to cross whether line current is above standard, the time relay is delay cell, it guarantees device action with delay appropriate
Selective, signal relay is used to issue protection signal, when normal operation, the touching of electric current relay and the time relay
Point is all to disconnect, and when by protection zone failure or excessive electric current, electric current relay movement starts time relay by its contact
Device, after scheduled delay, time relay contact closure is connected circuit breaker trip coil, circuit breaker trip, fault wire
Road is removed, while starting signal relay, and annunciator is fallen down, and connects light or acoustic signal.
However, when traditional overcurrent protection relay applies to closed power distribution room, due to the letter on overcurrent protection relay
Number plate is connected with the inside of ontology, and then dust is easily accessible the inside of overcurrent relay, when coil current is excessive, coil
Fever will lead to internal wiring and burn, it has not been convenient in time to relay internal heat dissipating, when for multiple groups circuit connection in use, working as
When overcurrent condition occurs in internal circuit, cracking relay inside cannot be overhauled.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of overcurrent protection relays, prevent Inside coil from generating heat
Cause internal wiring to burn, removes dust, while conveniently in overcurrent in time to relay internal heat dissipating, it is convenient to overhaul.
The technical solution adopted by the present invention to solve the technical problems is: a kind of overcurrent protection relay, including storage knot
Structure, fixed plate, filter structure, position limiting structure, on-off structure, control structure, resetting structure and radiator structure；For controlling electric current
The on-off structure of on-off is set to the inside of the container structure, and the container structure for storing the on-off structure
On be symmetrically arranged with two pieces of fixed plates；It is equipped on the container structure for the radiator structure to internal heat dissipating；It is described multiple
Bit architecture engages the on-off structure；The inside of the container structure is equipped with the control knot for being attracted the on-off structure
Structure；The container structure be equipped with multiple position limiting structures for fixed power source line, and each on-off structure and its
In be electrically connected between two position limiting structures, between each control structure and other two described position limiting structure electrically
Connection；The container structure, which is equipped with, is used for the dust-proof filter structure, and the on-off structure and the filter structure it
Between contradict.
Specifically, the container structure includes containing box and cover board, one end of the containing box is symmetrically arranged with described in two
Fixed plate deviates from the fixed plate for storing the containing box of rectangular configuration of the on-off structure and the control structure
One end be equipped with the bolted cover board.
Specifically, the filter structure includes filter screen, fixing sleeve, push rod, set casing, spacing collar and spring, the lid
Plate is equipped with the fixing sleeve of rectangular configuration, and the wavy filtering is clamped between the fixing sleeve and the cover board
Net, the push rod contradict the on-off structure；It is fixed with set casing on the cover board on the inside of filter screen, and the set casing
It is internal that push rod is equipped with by spring, and the inside of the set casing is equipped with spacing collar, and the side of the spacing collar contradicts bullet
Spring.
Specifically, the position limiting structure includes limit hole, partition, briquetting and block, symmetrically set two-by-two on the containing box
There is partition described in multiple groups, running through on the cover board there are multiple limit holes, and the inside of the containing box is symmetrically fixed with two-by-two
Block described in multiple groups is bolted between the briquetting and the block.
Specifically, the on-off structure includes dynamic connecting terminal, determines connecting terminal, rubber interlayer, dynamic iron core, pushing block, the
One reset spring, storage frame, static iron core and pin shaft, the storage frame are fixed on the inside of the containing box, the storage frame
Central axes are equipped with the static iron core of cylindrical structure, and the storage frame, institute are fixed in one end of the first back-moving spring
The other end for stating first back-moving spring contacts at the pushing block, and the pushing block is fixed on the dynamic iron core, and the dynamic iron core is logical
It crosses between the pin shaft and the storage frame and is rotatablely connected, the dynamic iron core is equipped with described away from one end of the static iron core
Rubber interlayer, the dynamic connecting terminal are fixed on the rubber interlayer, and the dynamic connecting terminal is fixed on one of them described pressure
It between block and the block, is electrically connected between the dynamic connecting terminal and the block, the push rod contradicts the dynamic wiring
Terminal, described one end determined connecting terminal and be fixed on the containing box away from the pin shaft are described to determine connecting terminal and other one
It is electrically connected between the group block；The inside of the dynamic iron core connects limited block by compressed spring.
Specifically, the control structure includes coil, fiber interlayer and air ring, the static iron core is equipped with latticed band
There is the fiber interlayer of spiral toroidal cavity, the coil helix is wound in the fiber interlayer, the top of the static iron core
End is equipped with the wavy air ring.
Specifically, the radiator structure includes suction disc, pin shaft, baffle and torsional spring, the baffle passes through torsional spring and containing box
Between be rotatablely connected, and the inner sidewall of the baffle is equipped with hemispheric suction disc, and the torsional spring is wound in shaft.
Specifically, the inside of the static iron core is equipped with resetting structure, and the resetting structure includes pull rod, and the drawing
One end of bar is equipped with spherical spacing ball, and the spacing ball engages with arc-shaped limited block；The pull rod and static iron core
Between pass through second back-moving spring connect.
Beneficial effects of the present invention:
(1) a kind of overcurrent protection relay of the present invention, the filter structure contact at the on-off structure, in turn
Convenient for driving the filter structure to shake by the on-off structure, and then convenient for intuitive according to the filter structure deformation quantity
The break-make situation of the on-off structure is reacted, while effectively preventing dust from entering the inside of the containing box, and then mention significantly
High stability in use energy, it may be assumed that when the push rod contradicts the filter screen, the filter screen is wavy shaped configuration, increases dust
Make the deformation quantity of the filter screen bigger while filter area, and then convenient for whether deformation judges overcurrent by the filter screen
The working condition of relay, and then convenient for pushing the filter screen manually in repair and maintenance, make described in the filter screen conflict
Push rod, and then pass through the on-off of push rod control relay.
(2) a kind of overcurrent protection relay of the present invention, the control structure are set to the inside of the on-off structure,
And then the heat dissipation performance of the inside of the container structure is improved, while effectivelying prevent the on-off structure and the control structure
Damage is hit, and then substantially increases stability, it may be assumed that air ring is waveform, in air ring compression process, makes the containing box
Internal space becomes larger, and then makes external air-flow into the inside of the containing box, and the dynamic connecting terminal connects surely with described
Line terminals contradict, air ring avoid the dynamic connecting terminal and it is described determine connecting terminal hit damage, work as coil blackout, make
The air ring resets, and the first back-moving spring, which is shunk, pulls the dynamic iron core to rotate around the pin shaft, keeps the dynamic iron core multiple
Position, air ring air-breathing, and then air flowing is promoted, and then keep internal heat dissipation performance more preferable, the static iron core is equipped with grid
The fiber interlayer with spiral toroidal cavity of shape, the coil helix is wound in the fiber interlayer, and then improves
Aeration between the coil of winding, and then the coil temperatures is effectively prevent to damage.
(3) for the present invention when electric current is excessively high, the magnetic force that coil generates under the function of current is greater than the drawing of first back-moving spring
Power engages dynamic iron core with spacing ball, makes the separated of on-off structure and block, to play a protective role, the coil is disconnected
Electricity makes on-off structure and resetting structure card at this point, the elastic force between multiple compressed springs is greater than the restoring force of first back-moving spring
It closes, at this point, coil blackout loses magnetic force, radiator structure is opened, and the baffle of structure flicks outward under the action of torsional spring, outside bullet
The moment opened drives suction disc to generate an outside suction, can accelerate the flowing of internal gas flow, realizes the heat dissipation to coil, together
When, it, can be cracking when being conducive to remind staff in closed power distribution room containing the maintenance of multiple overcurrent protection relays
It finds specific current protective relay and large current interruption problem occurs, on-call maintenance is avoided to containing multiple line conditions
There is needing outage detection one by one in lower installation overcurrent protection relay.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of a kind of preferred embodiment overall structure diagram of overcurrent protection relay provided by the invention；
Fig. 2 is the attachment structure schematic diagram of container structure shown in FIG. 1 and filter structure；
Fig. 3 is radiator structure shown in Fig. 2 and container structure seperated schematic diagram；
Fig. 4 is the portion A shown in Fig. 2 enlarged diagram；
Fig. 5 is the portion B shown in Fig. 2 enlarged diagram；
Fig. 6 engages schematic diagram with spacing ball for dynamic iron core shown in Fig. 3；
Fig. 7 is torsional spring scheme of installation shown in Fig. 2.
In figure: 1, container structure, 11, containing box, 12, cover board, 2, fixed plate, 3, filter structure, 31, filter screen, 32, solid
Fixed set, 33, push rod, 34, set casing, 35, spacing collar, 36, spring, 4, position limiting structure, 41, limit hole, 42, partition, 43, pressure
Block, 44, block, 5, on-off structure, 51, dynamic connecting terminal, 52, determine connecting terminal, 53, rubber interlayer, 54, dynamic iron core, 541,
Limited block, 542, compressed spring, 55, pushing block, 56, first back-moving spring, 57, storage frame, 58, static iron core, 59, pin shaft, 6, control
Structure processed, 61, coil, 62, fiber interlayer, 63, air ring, 7, radiator structure, 71, suction disc, 72, shaft, 73, baffle, 74, torsion
Spring, 8, resetting structure, 81, spacing ball, 82, pull rod, 83, second back-moving spring.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown in Fig. 1-Fig. 7, a kind of overcurrent protection relay of the present invention, including container structure 1, fixed plate 2, mistake
Filter structure 3, position limiting structure 4, on-off structure 5, control structure 6, resetting structure 8 and radiator structure 7；For controlling current switching
The on-off structure 5 is set to the inside of the container structure 1, and the container structure 1 for storing the on-off structure 5
It is symmetrically arranged with two pieces of fixed plates 2；It is equipped on the container structure 1 for the radiator structure 7 to internal heat dissipating；It is described multiple
Bit architecture 8 engages the on-off structure 5；The inside of the container structure 1 is equipped with the control for being attracted the on-off structure 5
Structure 6 processed；The container structure 1 is equipped with multiple position limiting structures 4 for fixed power source line, and each on-off knot
It is electrically connected between position limiting structure 4 described in structure 5 and two of them, each control structure 6 is tied with other two described limit
It is electrically connected between structure 4；The container structure 1 be equipped be used for the dust-proof filter structure 3, and the on-off structure 5 with
It is contradicted between the filter structure 3.
Specifically, the container structure 1 includes containing box 11 and cover board 12, one end of the containing box 11 is symmetrically arranged with two
A fixed plate 2 is carried on the back for storing the containing box 11 of rectangular configuration of the on-off structure 5 and the control structure 6
One end from the fixed plate 2 is equipped with the bolted cover board 12, and the setting of the fixed plate 2 is convenient for passing through screw for institute
It states containing box 11 to be mounted in equipment, be bolted between the cover board 12 and the containing box 11, and then is easy to disassemble described
Cover board 12, the on-off structure 5 and the control structure 6 to the inside of the containing box 11 carry out repair and maintenance.
Specifically, the filter structure 3 includes filter screen 31, fixing sleeve 32, push rod 33, set casing 34,35 and of spacing collar
Spring 36, the cover board 12 are equipped with the fixing sleeve 32 of rectangular configuration, press from both sides between the fixing sleeve 32 and the cover board 12
Hold the wavy filter screen 31, the push rod 33 contradicts the on-off structure 5；Cover board 12 positioned at 31 inside of filter screen
On be fixed with set casing 34, and the inside of the set casing 34 is equipped with push rod 33 by spring 36, and the set casing 34
Inside is equipped with spacing collar 35, and the side of the spacing collar 35 contradicts spring 36, and then convenient for being driven by the on-off structure 5
The filter structure 3 is shaken, and then convenient for intuitively reacting the logical of the on-off structure 5 according to 3 deformation quantity of filter structure
Disconnected situation, while effectively preventing dust from entering the inside of the containing box 11, and then substantially increase stability in use energy,
That is: when the described push rod 33 contradicts the filter screen 31, the filter screen 31 is wavy shaped configuration, increases the same of dust-filtering area
When keep the deformation quantity of the filter screen 31 bigger, and then convenient for by the filter screen 31, whether deformation judges overcurrent relay
Working condition, while when the reset of the filter screen 31, convenient for driving the push rod 33 to contradict the on-off structure 5, and then it is convenient for
In repair and maintenance, the filter screen 31 is pushed manually, and then so that the filter screen 31 is contradicted the push rod 33, and then pass through institute
State the on-off that push rod 33 controls relay.
Specifically, the position limiting structure 4 includes limit hole 41, partition 42, briquetting 43 and block 44, on the containing box 11
It is symmetrically arranged with partition 42 described in multiple groups two-by-two, running through on the cover board 12 there are multiple limit holes 41, the containing box 11
Inside is symmetrically fixed with block 44 described in multiple groups two-by-two, is bolted between the briquetting 43 and the block 44, outer when connecting
When portion's electric wire, first by power supply line from penetrated between two adjacent partitions 42 briquetting 43 and the block 44 it
Between, the screw of the inside of the limit hole 41 is then turned by screwdriver, is rotated between the screw and the limit hole 41
Connection, is threadedly coupled, and then so that the briquetting 43 is contradicted the block 44, and then make the pressure between screw and the briquetting 43
Block 43 and the block 44 contradict fixed power source line, the setting of the partition 42, and then standardize power supply line distribution more, avoid
Power supply line intertexture, keeps the repair and maintenance more convenient.
Specifically, the on-off structure 5 includes dynamic connecting terminal 51, determines connecting terminal 52, rubber interlayer 53, dynamic iron core
54, pushing block 55, first back-moving spring 56, storage frame 57, static iron core 58 and pin shaft 59, the storage frame 57 are fixed on the storage
The central axes of the inside of case 11, the storage frame 57 are equipped with the static iron core 58 of cylindrical structure, and described first resets bullet
The storage frame 57 is fixed in one end of spring 56, and the other end of the first back-moving spring 56 contacts at the pushing block 55, institute
It states pushing block 55 and is fixed on the dynamic iron core 54, the dynamic iron core 54 passes through the company of rotation between the pin shaft 59 and the storage frame 57
It connects, the dynamic iron core 54 is equipped with the rubber interlayer 53, the dynamic connecting terminal 51 away from one end of the static iron core 58
Be fixed on the rubber interlayer 53, the dynamic connecting terminal 51 be fixed on one of them described briquetting 43 and the block 44 it
Between, it is electrically connected between the dynamic connecting terminal 51 and the block 44, the push rod 33 contradicts the dynamic connecting terminal 51, institute
It states and determines one end that connecting terminal 52 is fixed on the containing box 11 away from the pin shaft 59, it is described to determine connecting terminal 52 and other one
It is electrically connected between the group block 44；The inside of the dynamic iron core 54 connects limited block 541 by compressed spring 542；Pass through
Mating connection realization between limited block 541 and spacing ball 81 engages；The push rod 33 contradicts the dynamic connecting terminal 51, described
Determine connecting terminal 52 and is fixed on one end that the containing box 11 deviates from the pin shaft 59, it is described to determine connecting terminal 52 and another set
It is electrically connected between the block 44；The rubber interlayer 53 is equipped between the dynamic connecting terminal 51 and the dynamic iron core 54,
And then the insulating properties between the dynamic connecting terminal 51 and the dynamic iron core 54 is improved, the push rod 33 and the dynamic terminals
Son 51 contradicts, and then improves the stability of the dynamic connecting terminal 51.
Specifically, the control structure 6 includes coil 61, fiber interlayer 62 and air ring 63, the static iron core 58 is equipped with
The latticed fiber interlayer 62 with spiral toroidal cavity, the coil 61 are helically wound around the fiber interlayer
62, the top of the static iron core 58 is equipped with the wavy air ring 63, and the control structure 6 is set to the on-off structure 5
Inside, and then improve the heat dissipation performance of the inside of the container structure 1, at the same effectively prevent the on-off structure 5 with it is described
Control structure 6 hits damage, and then substantially increases stability, and air ring 63 is elastic air ring, and air ring 63 is equipped with
Stomata and air inlet, it may be assumed that the coil 61 must be electric, and then electric magnetisation, impinges upon the dynamic iron core 54 on the air ring 63, institute
Stating air ring 63 is waveform, and air ring 63 compresses, and the space of the inside of the containing box 11 is made to become larger, so make external air-flow into
Enter the inside of the containing box 11, then the dynamic connecting terminal 51 determines the conflict of connecting terminal 52 with described, and air ring 63 avoids
The dynamic connecting terminal 51 with it is described determine connecting terminal 52 shock damage, when electric current is excessively high, coil 61 is in the function of current
The magnetic force of lower generation is greater than the pulling force of first back-moving spring 56, engages dynamic iron core 54 with spacing ball 81, makes on-off structure 5 and gear
Block 44 it is separated, to play a protective role, the coil 61 is powered off, at this point, the elastic force between multiple compressed springs 542 is big
In the restoring force of first back-moving spring 56, engage on-off structure 5 with resetting structure 8, at this point, the power-off of coil 61 loses magnetic force,
Radiator structure 7 is opened, and the baffle 73 of structure 7 flicks outward under the action of torsional spring 74, and the moment flicked outward drives suction disc 71
An outside suction is generated, the flowing of internal gas flow can be accelerated, realizes the heat dissipation to coil 61, meanwhile, be conducive to remind
When staff overhauls in closed power distribution room containing multiple overcurrent protection relays, cracking specific electric current can be found
There is large current interruption problem in protective relay, on-call maintenance, avoids to containing installing overcurrent protection under multiple line conditions
Occur needing outage detection one by one in relay, and then reset the air ring 63, the first back-moving spring 56, which is shunk, to be pulled
The dynamic iron core 54 is rotated around the pin shaft 59, resets the dynamic iron core 54, and then promotes air flowing, and then make inside
Heat dissipation performance it is more preferable, convenient for the dust on the filter screen 31 is discharged, the static iron core 58 is equipped with and latticed has
The fiber interlayer 62 of spiral toroidal cavity, the coil 61 is helically wound around the fiber interlayer 62, and then improves
Aeration between the coil 61 of winding, and then 61 high temperature of coil is effectively prevent to damage.
Specifically, the radiator structure 7 includes suction disc 71, shaft 72, baffle 73 and torsional spring 74, the baffle 73 passes through torsion
It is rotatablely connected between spring 74 and containing box 11, and the inner sidewall of the baffle 73 is equipped with hemispheric suction disc 71, and the torsion
Spring 74 is wound in shaft 72；The power-off of coil 61 loses magnetic force, and radiator structure 7 is opened, and the baffle 73 of radiator structure 7 is in torsional spring 74
Under the action of flick outward, moment for flicking outward drives suction disc 71 to generate an outside suction, can accelerate internal gas flow
Flowing, realize heat dissipation to coil 61, realize the heat dissipation to coil 61, meanwhile, be conducive to remind staff to closing
Power distribution room in containing the maintenance of multiple overcurrent protection relays when, cracking can find specific current protective relay occur it is big
Current interruption problem, on-call maintenance.
Specifically, the inside of the static iron core 58 is equipped with resetting structure 8, and the resetting structure 8 includes pull rod 82, and
One end of the pull rod 82 is equipped with spherical spacing ball 81, and the spacing ball 81 engages with arc-shaped limited block 541；Institute
It states and is connected between pull rod 82 and static iron core 58 by second back-moving spring 83.
Working principle of the present invention is as follows:
(1) when working normally, external cable is connected, power supply line is penetrated into briquetting between two adjacent partitions 42 first
Between 43 and block 44, the screw of the inside of limit hole 41 is then turned by screwdriver, is rotated between screw and limit hole 41
Connection, is threadedly coupled between screw and briquetting 43, and then briquetting 43 is made to contradict block 44, and then contradicts briquetting 43 and block 44
Fixed power source line, the setting of partition 42, and then standardize power supply line distribution more, power supply line intertexture is avoided, repair and maintenance is made
It is more convenient；Meanwhile, it is capable to play the insulating effect between power supply line；It is equipped between dynamic connecting terminal 51 and dynamic iron core 54
Rubber interlayer 53, and then the insulating properties between dynamic connecting terminal 51 and dynamic iron core 54 is improved, in normal work, move terminals
The inside of son 51 passes through coil 61 and determines to be electrically connected inside connecting terminal 52, and 33 one end of push rod is located at the inside of filter screen 31,
One end contradicts dynamic connecting terminal 51；Coil 61 obtains electric, electromagnetic relay normal work, at this point, when electromagnetic relay normal processes,
Coil 61 makes static iron core 58 generate magnetic, but in course of normal operation, magnetic force is less than the pulling force and spring of first back-moving spring 56
The sum of 36 elastic force, the magnetic force generated in course of normal operation are greater than the torsion of torsional spring 74, to inhaling baffle 73 in containing box
On 11, in normal work, push rod 33 contradicts filter screen 31, and filter screen 31 is supported, and filter screen 31 is wavy shaped configuration, and
Filter screen 31 is elastic filter screen, and filter screen 31 is slidably installed between fixing sleeve 32 and cover board 12, wavy filter screen 31
Make the deformation quantity of filter screen 31 bigger while increasing dust-filtering area, when relay work, filter screen 31 to
Outer protrusion, when relay power-off, filter screen 31 restores, and does not outwardly protrude, and then convenient for whether there is shape by filter screen 31
Become the working condition to judge overcurrent relay, in repair and maintenance, it is only necessary to Manual press filter screen 31, and then make filter screen
31 contradict push rod 33, and then the on-off of relay is controlled by push rod 33.
(2) when electric current is excessively high, coil 61 can generate big magnetic force in excessive current at this time, and magnetic force at this time is big
In the restoring force of first back-moving spring 56, impinge upon dynamic iron core 54 on air ring 63, air ring 63 is waveform, can make dynamic iron core
54 play the role of buffering in knockout process, meanwhile, instantaneous what is quickly moved, air ring 63 compresses, and then makes containing box 11
The space of inside become larger, and then external air-flow is made to enter the inside of containing box 11, then dynamic iron core 54 and static iron core 58 are inhaled
It is attached, and then make connecting terminal 51 and determine the conflict of connecting terminal 52, and then avoid dynamic connecting terminal 51 and determine connecting terminal 52
Shock damages, and contacts connecting terminal 51 with connecting terminal 52 is determined；In the moment of absorption, connecting terminal 52 and block are determined
44 disconnect, and coil 61 powers off, and coil 61 loses magnetic force, and on-off structure 5 is connected together with resetting structure 8 at this time；In excessive current
Moment, the magnetic force that coil 61 generates under the function of current are greater than the pulling force of first back-moving spring 56, make dynamic iron core 54 and spacing ball
81 engagings, make the separated of on-off structure 5 and block 44, thus play a protective role, in quick adsorption, the power-off of coil 61,
At this point, the elastic force between multiple compressed springs 542 is greater than the restoring force of first back-moving spring 56, make on-off structure 5 and reset to tie
Structure 8 engages, at this point, the power-off of coil 61 loses magnetic force, radiator structure 7 is opened, the effect of the baffle 73 of radiator structure 7 in torsional spring 74
It flicking outward down, the moment flicked outward drives suction disc 71 to generate an outside suction, the flowing of internal gas flow can be accelerated,
It realizes the heat dissipation to coil 61, realizes the heat dissipation to coil 61, meanwhile, be conducive to remind staff to closed power distribution room
In containing the maintenance of multiple overcurrent protection relays when, cracking can find specific current protective relay and large current interruption occur
Problem, on-call maintenance are avoided to occurring needing powering off one by one containing installing in overcurrent protection relay under multiple line conditions
Detection；When service personnel completes to overhaul to circuit, pull rod 82 is pulled manually, makes to be detached between spacing ball 81 and limited block 541, this
When, 56 shrinkage tensions of first back-moving spring are greater than the compression elasticity of spring 36, and air ring 63 resets, and first back-moving spring 56, which is shunk, draws
Dynamic dynamic iron core 54 is rotated around pin shaft 59, resets dynamic iron core 54, and then promotes air flowing, accelerates internal heat dissipation, just
In the dust on filter screen 31 is discharged, static iron core 58 is equipped with the latticed fiber interlayer with spiral toroidal cavity
62, coil 61 is helically wound around the inside of fiber interlayer 62, and then improves the aeration between the coil 61 of winding, Jin Eryou
Effect prevents 61 high temperature of coil from damaging.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the description in above embodiment and specification only illustrates the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement is both fallen in the scope of protection of present invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (8)
1. a kind of overcurrent protection relay, it is characterised in that: including container structure (1), fixed plate (2), filter structure (3), limit
Bit architecture (4), on-off structure (5), control structure (6), resetting structure (8) and radiator structure (7)；For controlling current switching
The on-off structure (5) is set to the inside of the container structure (1), and the storage for storing the on-off structure (5)
Two pieces of fixed plates (2) are symmetrically arranged in structure (1)；It is equipped on the container structure (1) for being dissipated to internal heat dissipating
Heat structure (7)；The resetting structure (8) engages the on-off structure (5)；The inside of the container structure (1) is equipped with for inhaling
Close the control structure (6) of the on-off structure (5)；The container structure (1) is equipped with multiple for fixed power source line
The position limiting structure (4), and be electrically connected between position limiting structure (4) described in each on-off structure (5) and two of them, often
It is electrically connected between a control structure (6) and other two described position limiting structure (4)；The container structure (1) is equipped with
It is contradicted for the dust-proof filter structure (3), and between the on-off structure (5) and the filter structure (3).
2. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the container structure (1) includes receiving
Receive case (11) and cover board (12), one end of the containing box (11) is symmetrically arranged with two fixed plates (2), described for storing
The containing box (11) of the rectangular configuration of on-off structure (5) and the control structure (6) deviates from the one end of the fixed plate (2)
Equipped with the bolted cover board (12).
3. a kind of overcurrent protection relay according to claim 2, it is characterised in that: the filter structure (3) included
Strainer (31), fixing sleeve (32), push rod (33), set casing (34), spacing collar (35) and spring (36) are set on the cover board (12)
There is the fixing sleeve (32) of rectangular configuration, is clamped between the fixing sleeve (32) and the cover board (12) wavy described
Filter screen (31), the push rod (33) contradict the on-off structure (5)；It is fixed on the cover board (12) on the inside of filter screen (31)
Have set casing (34), and the inside of the set casing (34) is equipped with push rod (33) by spring (36), and the set casing
(34) inside is equipped with spacing collar (35), and the side of the spacing collar (35) contradicts spring (36).
4. a kind of overcurrent protection relay according to claim 3, it is characterised in that: the position limiting structure (4) includes limit
Position hole (41), partition (42), briquetting (43) and block (44) are symmetrically arranged with partition described in multiple groups on the containing box (11) two-by-two
(42), through there is multiple limit holes (41) on the cover board (12), the inside of the containing box (11) is symmetrically fixed two-by-two
Have block described in multiple groups (44), is bolted between the briquetting (43) and the block (44).
5. a kind of overcurrent protection relay according to claim 4, it is characterised in that: the on-off structure (5) includes dynamic
Connecting terminal (51) determines connecting terminal (52), rubber interlayer (53), dynamic iron core (54), pushing block (55), first back-moving spring
(56), frame (57), static iron core (58) and pin shaft (59), storage frame (57) are stored and is fixed on the interior of the containing box (11)
The central axes in portion, storage frame (57) are equipped with the static iron core (58) of cylindrical structure, the first back-moving spring
(56) the storage frame (57) is fixed in one end, and the other end of the first back-moving spring (56) contacts at the pushing block
(55), the pushing block (55) is fixed on the dynamic iron core (54), and the dynamic iron core (54) passes through the pin shaft (59) and the receipts
Receive and be rotatablely connected between frame (57), the dynamic iron core (54) away from the one end of the static iron core (58) be equipped with the rubber every
Layer (53), the dynamic connecting terminal (51) are fixed on the rubber interlayer (53), and the dynamic connecting terminal (51) is fixed on wherein
Between one briquetting (43) and the block (44), electrically connect between the dynamic connecting terminal (51) and the block (44)
It connects, the push rod (33) contradicts the dynamic connecting terminal (51), described to determine connecting terminal (52) and be fixed on the containing box (11)
It is described to determine to be electrically connected between block (44) described in connecting terminal (52) and another set away from one end of the pin shaft (59)；
The inside of the dynamic iron core (54) passes through compressed spring (542) connection limited block (541).
6. a kind of overcurrent protection relay according to claim 5, it is characterised in that: the control structure (6) includes line
(61), fiber interlayer (62) and air ring (63) are enclosed, the static iron core (58) is equipped with latticed with spiral toroidal cavity
The fiber interlayer (62), the coil (61) is helically wound around the fiber interlayer (62), the top of the static iron core (58)
End is equipped with the wavy air ring (63).
7. a kind of overcurrent protection relay according to claim 2, it is characterised in that: the radiator structure (7) includes inhaling
Plate (71), shaft (72), baffle (73) and torsional spring (74), the baffle (73) pass through and turn between torsional spring (74) and containing box (11)
Dynamic connection, and the inner sidewall of the baffle (73) is equipped with hemispheric suction disc (71), and the torsional spring (74) is wound in shaft
(72) on.
8. a kind of overcurrent protection relay according to claim 5, it is characterised in that: pacify the inside of the static iron core (58)
Equipped with resetting structure (8), and the resetting structure (8) includes pull rod (82), and one end of the pull rod (82) is equipped with spherical shape
Spacing ball (81), and the spacing ball (81) engages with arc-shaped limited block (541)；The pull rod (82) and static iron core
(58) it is connected between by second back-moving spring (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682897.3A CN110335782B (en) | 2019-07-26 | 2019-07-26 | Overcurrent protection relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682897.3A CN110335782B (en) | 2019-07-26 | 2019-07-26 | Overcurrent protection relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110335782A true CN110335782A (en) | 2019-10-15 |
| CN110335782B CN110335782B (en) | 2021-02-09 |
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ID=68147704
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910682897.3A Expired - Fee Related CN110335782B (en) | 2019-07-26 | 2019-07-26 | Overcurrent protection relay |
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| CN (1) | CN110335782B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580624A (en) * | 2020-04-24 | 2020-08-25 | 杨梦洁 | Desktop computer heat abstractor |
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|---|---|---|---|---|
| JP2009076364A (en) * | 2007-09-21 | 2009-04-09 | Nec Tokin Corp | Electromagnetic relay |
| CN204966401U (en) * | 2015-08-06 | 2016-01-13 | 捷硕(长泰)电力电子有限公司 | Heat dissipation abrasionproof decreases formula relay |
| CN105261525A (en) * | 2015-11-04 | 2016-01-20 | 国网山东昌乐县供电公司 | Safe relay with high heat dissipation performance |
| CN108511268A (en) * | 2018-05-30 | 2018-09-07 | 安徽龙太电气科技有限公司 | A kind of heat dissipation, energy conservation relay with timing function |
| CN108615659A (en) * | 2016-12-09 | 2018-10-02 | 浙江正泰电器股份有限公司 | Electromagnetic relay |
-
2019
- 2019-07-26 CN CN201910682897.3A patent/CN110335782B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009076364A (en) * | 2007-09-21 | 2009-04-09 | Nec Tokin Corp | Electromagnetic relay |
| CN204966401U (en) * | 2015-08-06 | 2016-01-13 | 捷硕(长泰)电力电子有限公司 | Heat dissipation abrasionproof decreases formula relay |
| CN105261525A (en) * | 2015-11-04 | 2016-01-20 | 国网山东昌乐县供电公司 | Safe relay with high heat dissipation performance |
| CN108615659A (en) * | 2016-12-09 | 2018-10-02 | 浙江正泰电器股份有限公司 | Electromagnetic relay |
| CN108511268A (en) * | 2018-05-30 | 2018-09-07 | 安徽龙太电气科技有限公司 | A kind of heat dissipation, energy conservation relay with timing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580624A (en) * | 2020-04-24 | 2020-08-25 | 杨梦洁 | Desktop computer heat abstractor |
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| Publication number | Publication date |
|---|---|
| CN110335782B (en) | 2021-02-09 |
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