CN110444443A - A kind of overcurrent protection relay - Google Patents
A kind of overcurrent protection relay Download PDFInfo
- Publication number
- CN110444443A CN110444443A CN201910747345.6A CN201910747345A CN110444443A CN 110444443 A CN110444443 A CN 110444443A CN 201910747345 A CN201910747345 A CN 201910747345A CN 110444443 A CN110444443 A CN 110444443A
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- Prior art keywords
- plate
- fixedly connected
- fixed
- slot
- protective shell
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Links
- 230000001681 protective effect Effects 0.000 claims abstract description 45
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 radiator Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
- H01H45/12—Ventilating; Cooling; Heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
- H01H45/14—Terminal arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to relay technical fields, specifically a kind of overcurrent protection relay, including pedestal, loose slot, protective shell, side door, bottom plate, first connecting rod, second connecting rod, connecting shaft, fixed cylinder, sliding block, first spring, connecting rod, second spring, link block, fixed block, fixed plate, heat release hole, anti-gray net, side cover, ventilating groove, refrigerator pipes, semiconductor chilling plate, heat dissipation cavity, blower, mounting rack, relay ontology, micromotor, gear, first rack-plate, mounting plate, second rack-plate, side plate, movable plate, fixed link, inlet wire slot, through slot, pull rod, limiting slot, third spring, fixed column, snap-gauge, inlet wire plate and card slot.Blower work of the present invention drives air to enter in ventilating groove from the air inlet of side cover one end; by in ventilating groove refrigerator pipes and semiconductor chilling plate cooling is carried out to air and is delivered to the inside of protective shell; to cool down at work to relay ontology, the service life of relay is improved.
Description
Technical field
The invention belongs to relay technical field, specifically a kind of overcurrent protection relay.
Background technique
Overcurrent protection relay: current relatively good overcurrent protection relay can collect protection, monophase current measurement, control
Function realizes the data sharing and remote control with long-range upper host in one, and by in-com interface, and is connect by in-con
The existing data sharing and distant control function with long-range upper host of cause for gossip, laying particular emphasis on its defencive function can be using general overview as phase element
With earth element: overcurrent protection when inverse-time overcurrent protection, short delay protection, wink current transformer ratio, overload alarm,
Region interlocking, itself perfect self-checking function, it is ensured that device provides reliable protection for primary equipment.
Existing relay is small in size, installs more electronic component internal, since mounting structure is compact, in work shape
Under state, electronic component is easy fever, and general only to be radiated by the way that heat release hole is arranged on casing of relay, still, this sets
The relay of heat release hole is set under the state of working long hours, internal heat can not be discharged in time, due to that cannot exclude heat in time
Amount will cause the damage of certain components, reduce the service life of relay, existing relay is generally fixedly mounted, it has not been convenient to connect
Line and replacement, general overcurrent protection relay are installed in factory, are easy to shake along with the vibration that the machine in factory generates
It is dynamic, so that the cable for connecting relay be made to loosen and damage the electric elements inside relay.Therefore, it proposes regarding to the issue above
A kind of overcurrent protection relay.
Summary of the invention
The object of the invention is that providing a kind of overcurrent protection relay to solve the above-mentioned problems.
The present invention be achieved through the following technical solutions above-mentioned purpose, a kind of overcurrent protection relay, including pedestal and
Vibration absorber, radiator, fixed device and off-line preventer；
The vibration absorber includes the loose slot for being provided with chassis interior, and the bottom of the loose slot is fixedly connected with bottom plate,
The both ends of the bottom plate are rotatablely connected one end of first connecting rod by shaft, and the other end of the first connecting rod is turned by connecting shaft
One end of dynamic connection second connecting rod, the second connecting rod are rotatablely connected fixed block by shaft, and the top of the fixed block is fixed
It is connected and fixed the bottom end of plate；
The radiator includes the protective shell for being fixedly connected on fixed plate top, the hinged side in one end of the protective shell
Door, the both ends of the protective shell are fixedly connected with side cover, and the inside of the side cover is fixedly connected with refrigerator pipes, the refrigerator pipes it is interior
Portion is equipped with semiconductor chilling plate, and the inside of the side cover is fixedly connected with mounting rack, and the inside of the mounting rack is equipped with blower,
The both ends side wall of the protective shell is provided with heat release hole, and the inside of heat release hole is fixedly connected with anti-gray net；
The fixed device includes the micromotor being mounted on inside protective shell, and the output end of the micromotor is socketed tooth
Wheel, the inside of the protective shell are fixedly connected with side plate, and the inside of the side plate is provided with through slot, the internal slide connection of the through slot
First rack-plate and the second rack-plate, one end of first rack-plate are fixedly connected with mounting plate, one end peace of the mounting plate
Equipped with relay ontology；
The off-line preventer includes the fixed link for being fixedly connected with one end of the second rack-plate, and one end of the fixed link is solid
Surely movable plate is connected, limiting slot is provided with inside one end of the movable plate, the internal slide of the limiting slot is connected and fixed column, institute
The one end for stating fixed column is fixedly connected with snap-gauge.
Preferably, the inside of the protective shell is fixedly connected with inlet wire plate, and one end of inlet wire plate is provided with several equidistant point
The card slot of cloth, card slot mating connection snap-gauge.
Preferably, the top of the fixed column is fixedly connected with one end of third spring, and the other end of third spring is fixed
One end of connecting rod, pull rod are slidably connected at the inside of limiting slot.
Preferably, the pull rod is in the shape of an " I ", and the third spring that pull rod one end is fixedly connected is socketed in limiting slot
It is internal.
Preferably, the top of the bottom plate is fixedly connected with fixed cylinder, and the internal slide connection sliding block of fixed cylinder, sliding block
One end is fixedly connected with connecting rod, and the outside of connecting rod is socketed the first spring, and one end of connecting rod is fixedly connected with the bottom end of fixed plate
Center.
Preferably, one end of the second connecting rod is fixedly connected with link block, and one end of link block is fixedly connected with the second bullet
The other end of one end of spring, second spring is fixedly connected with the side wall of fixed cylinder.
Preferably, one end of the side cover is provided with the air inlet being equally spaced, and the inside of side cover is provided with heat dissipation cavity, heat dissipation
One end of chamber is connected to heat release hole, and the inside of heat dissipation cavity is connected to refrigerator pipes.
Preferably, one end of the first rack-plate of connection and one end of the second rack-plate are engaged in the both ends of the gear respectively.
Preferably, the inlet wire slot being equally spaced is provided at the top of the protective shell, and protective shell is slidably connected at loose slot
Inside.
Preferably, the both ends of the fixed link are slidably connected with the through slot inside side plate.
The beneficial effects of the present invention are:
(1) present invention is fixed the position of relay ontology by two mounting plates, is then opened by outside connected switch micro-
Type motor, minitype motor driving gear rotation, gear drive both ends engagement connection the first rack-plate and the second rack-plate along
Through slot sliding inside side plate, the first rack-plate drives mounting plate mobile, so as to adjust relay ontology inside protective shell
Position, to facilitate wiring and movement.
(2) present invention drives connecting rod to move along through slot by the second rack-plate, will need to connect relay ontology
Cable is penetrated by inlet wire slot, and then by pulling pull rod, pull rod drives internal slide of the third spring in limiting slot, third bullet
Spring, which stretches, drives fixed column and clamp moving, and fixed cable will be needed to be placed in the card slot of inlet wire intralamellar part, releasing lever,
Third spring reset pushes the snap-gauge of fixed column one end and card slot to be cooperatively connected, so that the cable in card slot be fixed, prevent after
Cable falls off electric appliance in the process of work.
(3) by blower and semiconductor chilling plate, it is ventilative that blower work drives air to enter from the air inlet of side cover one end
In slot, by ventilating groove refrigerator pipes and semiconductor chilling plate cool down to air, the air after cooling is passed through into heat dissipation
Hole is delivered to the inside of protective shell through anti-gray net filtration, to cool down at work to relay ontology, improves relay
Service life.
(4) pass through the protective shell basal sliding along the loose slot of chassis interior to loose slot under vibration, protective shell band
Dynamic fixed plate and fixed block move down, and fixed block drives the second connecting rod rotation of shaft rotation connection, and second connecting rod passes through company
Spindle and first connecting rod rotate, and second connecting rod drives one end of second spring to move down by link block, to provide protective shell
Reset protective shell in time while vibration damping, fixed plate drives connecting rod and sliding block in the internal slide of fixed cylinder, connection
Bar is by the first spring-compressed, to provide secondary vibration damping to protective shell, to carry out vibration damping to the relay ontology in work, subtracts
The influence that vibration generates when small this body running of relay.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is schematic diagram of the three-dimensional structure；
Fig. 2 is overall structure of the present invention；
Fig. 3 is top view of the present invention；
Fig. 4 be movable plate of the present invention, pull rod, limiting slot, third spring, fixed column and snap-gauge structural schematic diagram；
Fig. 5 is the structural schematic diagram of inlet wire plate and card slot of the present invention
Fig. 6 is the structural schematic diagram of side plate of the present invention, through slot and gear.
In figure: 1, pedestal, 2, loose slot, 3, protective shell, 301, side door, 4, bottom plate, 5, first connecting rod, 501, second connects
Bar, 6, connecting shaft, 7, fixed cylinder, 8, sliding block, the 9, first spring, 10, connecting rod, 11, second spring, 12, link block, 13, solid
Determine block, 14, fixed plate, 15, heat release hole, 16, anti-gray net, 17, side cover, 18, ventilating groove, 19, refrigerator pipes, 20, semiconductor refrigerating
Piece, 21, heat dissipation cavity, 22, blower, 23, mounting rack, 24, relay ontology, 25, micromotor, 26, gear, the 27, first rack gear
Plate, 28, mounting plate, the 29, second rack-plate, 30, side plate, 31, movable plate, 32, fixed link, 33, inlet wire slot, 34, through slot, 35,
Pull rod, 36, limiting slot, 37, third spring, 38, fixed column, 39, snap-gauge, 40, inlet wire plate, 41, card slot.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
It please refers to shown in Fig. 1-6, a kind of overcurrent protection relay, including pedestal 1 and vibration absorber, radiator, solid
Determine device and off-line preventer；The vibration absorber includes the loose slot 2 being provided with inside pedestal 1, the bottom of the loose slot 2
It is fixedly connected with bottom plate 4, the both ends of the bottom plate 4 are rotatablely connected one end of first connecting rod 5 by shaft, the first connecting rod 5
The other end is rotatablely connected one end of second connecting rod 501 by connecting shaft 6, and the second connecting rod 501 is rotatablely connected solid by shaft
Determine block 13, the top of the fixed block 13 is fixedly connected with the bottom end of fixed plate 14, reduces damage of the vibration to relay；
The radiator includes the protective shell 3 for being fixedly connected on 14 top of fixed plate, and one end of the protective shell 3 is hinged
Side door 301, the both ends of the protective shell 3 are fixedly connected with side cover 17, and the inside of the side cover 17 is fixedly connected with refrigerator pipes 19, institute
The inside for stating refrigerator pipes 19 is equipped with semiconductor chilling plate 20, and the inside of the side cover 17 is fixedly connected with mounting rack 23, the peace
The inside for shelving 23 is equipped with blower 22, and the both ends side wall of the protective shell 3 is provided with heat release hole 15, and the inside of heat release hole 15
It is fixedly connected with anti-gray net 16, improves the service life of relay；
The fixed device includes the micromotor 25 being mounted on inside protective shell 3, the output end of the micromotor 25
It is socketed gear 26, the inside of the protective shell 3 is fixedly connected with side plate 30, and the inside of the side plate 30 is provided with through slot 34, described logical
The internal slide of slot 34 connects the first rack-plate 27 and the second rack-plate 29, one end of first rack-plate 27 are fixedly connected with peace
One end of loading board 28, the mounting plate 28 is equipped with relay ontology 24, facilitates wiring and movement；
The off-line preventer includes the fixed link 32 for being fixedly connected with one end of the second rack-plate 29, the fixed link 32
One end is fixedly connected with movable plate 31, and limiting slot 36 is provided with inside one end of the movable plate 31, and the inside of the limiting slot 36 is sliding
Dynamic to be connected and fixed column 38, one end of the fixed column 38 is fixedly connected with snap-gauge 39, prevents loosening for cable.
The inside of the protective shell 3 is fixedly connected with inlet wire plate 40, and one end of inlet wire plate 40 is provided with several and is equally spaced
Card slot 41,41 mating connection snap-gauge 39 of card slot, structure is more reasonable, convenient for the fixation of cable；The top of the fixed column 38
It is fixedly connected with one end of third spring 37, and the other end of third spring 37 is fixedly connected with one end of pull rod 35, pull rod 35 slides
It is connected to the inside of limiting slot 36, structure is more reasonable, convenient for connection；The pull rod 35 is in the shape of an " I ", and 35 one end of pull rod
The third spring 37 being fixedly connected is socketed in the inside of limiting slot 36, and structure is more reasonable, convenient for connection；The top of the bottom plate 4
End is fixedly connected with fixed cylinder 7, and the internal slide connection sliding block 8 of fixed cylinder 7, and one end of sliding block 8 is fixedly connected with connecting rod 10, even
The outside of extension bar 10 is socketed the first spring 9, and one end of connecting rod 10 is fixedly connected with the bottom center of fixed plate 14, structure more adduction
Reason, convenient for connection；One end of the second connecting rod 501 is fixedly connected with link block 12, and one end of link block 12 is fixedly connected with
One end of two springs 11, the other end of second spring 11 are fixedly connected with the side wall of fixed cylinder 7, and structure is more reasonable, convenient for connection；
One end of the side cover 17 is provided with the air inlet being equally spaced, and the inside of side cover 17 is provided with heat dissipation cavity 21, and the one of heat dissipation cavity 21
End connection heat release hole 15, the inside of heat dissipation cavity 21 are connected to refrigerator pipes 19, and structure is more reasonable, convenient for connection；The gear 26
One end of the first rack-plate 27 of connection and one end of the second rack-plate 29 are engaged in both ends respectively, and structure is more reasonable, convenient for connection；
The top of the protective shell 3 is provided with the inlet wire slot 33 being equally spaced, and protective shell 3 is slidably connected at the inside of loose slot 2, structure
More rationally, convenient for connection；The both ends of the fixed link 32 are slidably connected with the through slot 34 inside side plate 30, structure more adduction
Reason, convenient for connection.
In the use of the present invention, first by the external control switch of the electric elements in the present apparatus and power supply, then the bottom of by
The position of seat 1 is fixed, and the hinged side door 301 in 3 one end of protective shell is opened, relay ontology 24 to be mounted then will be needed to place
Inside protective shell 3, the position of relay ontology 24 is fixed by two mounting plates 28, is then opened by outside connected switch micro-
Type motor 25, micromotor 25 are rotated with moving gear 26, and gear 26 drives the first rack-plate 27 and second of both ends engagement connection
Rack-plate 29 is slided along the through slot 34 inside side plate 30, and the first rack-plate 27 drives mounting plate 28 mobile, so as to adjust relay
Position of the device ontology 24 inside protective shell 3, to facilitate wiring and movement, the second rack-plate 29 drives connecting rod 10 along logical
Slot 34 is mobile, the cable for needing to connect relay ontology 24 is penetrated by inlet wire slot 33, then by pulling pull rod 35, pull rod
35 drive third spring 37 in the internal slide of limiting slot 36, and third spring 37, which stretches, drives fixed column 38 and snap-gauge 39 mobile,
Fixed cable will be needed to be placed in the card slot 41 inside inlet wire plate 40, releasing lever 35, third spring 37, which resets, to be pushed admittedly
The snap-gauge 39 and card slot 41 of 38 one end of fixed column are cooperatively connected, so that the cable in card slot 41 be fixed, prevent relay from working
During cable fall off, blower 22 and semiconductor chilling plate 20 are opened by outside connected switch, the work of blower 22 drive air from
The air inlet of 17 one end of side cover enters in ventilating groove 18, by 20 pairs of skies of refrigerator pipes 19 and semiconductor chilling plate in ventilating groove 18
Gas cools down, and the air after cooling is filtered to the inside for being delivered to protective shell 3 by heat release hole 15 through anti-gray net 16, thus right
Relay ontology 24 cools down at work, improves the service life of relay, when pedestal 1 is with the machine vibration in factory
When, for protective shell 3 under vibration along basal sliding of the loose slot 2 to loose slot 2 inside pedestal 1, protective shell 3 drives fixed plate
14 and fixed block 13 move down, fixed block 13 drives the second connecting rod 501 of shaft rotation connection to rotate, and second connecting rod 501 is logical
It crosses connecting shaft 6 and first connecting rod 5 rotates, second connecting rod 501 drives one end of second spring 11 to move down by link block 12, thus
Reset protective shell 3 in time, fixed plate 14 drives connecting rod 10 and sliding block 8 solid
The internal slide of safety barrel 7, connecting rod 10 compresses the first spring 9, so that secondary vibration damping is provided to protective shell 3, thus to work
In relay ontology 24 carry out vibration damping, reduce relay ontology 24 work when vibration generate influence.
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 above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
1. a kind of overcurrent protection relay, it is characterised in that: including pedestal (1) and vibration absorber, radiator, fixed device
And off-line preventer；The vibration absorber includes being provided with the internal loose slot (2) of pedestal (1), the bottom of the loose slot (2)
It is fixedly connected bottom plate (4), by one end of shaft rotation connection first connecting rod (5), described first connects at the both ends of the bottom plate (4)
The other end of bar (5) is by one end of connecting shaft (6) rotation connection second connecting rod (501), and the second connecting rod (501) is by turning
Axis is rotatablely connected fixed block (13), and the top of the fixed block (13) is fixedly connected with the bottom end of fixed plate (14)；
The radiator includes the protective shell (3) for being fixedly connected on fixed plate (14) top, one end hinge of the protective shell (3)
It connects side door (301), the both ends of the protective shell (3) are fixedly connected with side cover (17), and the inside of the side cover (17) is fixedly connected
The inside of refrigerator pipes (19), the refrigerator pipes (19) is equipped with semiconductor chilling plate (20), and the inside of the side cover (17) is fixed
It connects mounting rack (23), the inside of the mounting rack (23) is equipped with blower (22), and the both ends side wall of the protective shell (3) is opened
Have heat release hole (15), and the inside of heat release hole (15) is fixedly connected with anti-gray net (16)；
The fixed device includes being mounted on the internal micromotor (25) of protective shell (3), the output of the micromotor (25)
End cap connects gear (26), and the inside of the protective shell (3) is fixedly connected side plate (30), and the inside of the side plate (30) is provided with through slot
(34), the internal slide connection the first rack-plate (27) of the through slot (34) and the second rack-plate (29), first rack-plate
(27) one end is fixedly connected mounting plate (28), and one end of the mounting plate (28) is equipped with relay ontology (24)；
The off-line preventer includes the fixed link (32) for being fixedly connected with one end of the second rack-plate (29), the fixed link (32)
One end be fixedly connected movable plate (31), be provided with limiting slot (36), the limiting slot inside one end of the movable plate (31)
(36) internal slide is connected and fixed column (38), and one end of the fixed column (38) is fixedly connected with snap-gauge (39).
2. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the inside of the protective shell (3) is solid
Surely inlet wire plate (40) are connected, and one end of inlet wire plate (40) is provided with several card slots (41) being equally spaced, card slot (41) cooperation
It connects snap-gauge (39).
3. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the top of the fixed column (38) is solid
Surely the one end of third spring (37) is connected, and the other end of third spring (37) is fixedly connected with one end of pull rod (35), pull rod
(35) it is slidably connected at the inside of limiting slot (36).
4. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the pull rod (35) is in " work " word
Shape, and the third spring (37) that is fixedly connected of pull rod (35) one end is socketed in the inside of limiting slot (36).
5. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the top of the bottom plate (4) is fixed
It is connected and fixed cylinder (7), and the internal slide connection sliding block (8) of fixed cylinder (7), one end of sliding block (8) are fixedly connected with connecting rod
(10), the outside of connecting rod (10) is socketed the first spring (9), and one end of connecting rod (10) is fixedly connected with the bottom end of fixed plate (14)
Center.
6. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the one of the second connecting rod (501)
End is fixedly connected link block (12), and one end of link block (12) is fixedly connected with one end of second spring (11), second spring
(11) the other end is fixedly connected with the side wall of fixed cylinder (7).
7. a kind of overcurrent protection relay according to claim 1, it is characterised in that: one end of the side cover (17) is provided with
The air inlet being equally spaced, and the inside of side cover (17) is provided with heat dissipation cavity (21), one end of heat dissipation cavity (21) is connected to heat release hole
(15), the inside of heat dissipation cavity (21) is connected to refrigerator pipes (19).
8. a kind of overcurrent protection relay according to claim 1, it is characterised in that: distinguish at the both ends of the gear (26)
One end of engagement connection the first rack-plate (27) and one end of the second rack-plate (29).
9. a kind of overcurrent protection relay according to claim 1, it is characterised in that: opened at the top of the protective shell (3)
There is the inlet wire slot (33) being equally spaced, and protective shell (3) is slidably connected at the inside of loose slot (2).
10. a kind of overcurrent protection relay according to claim 1, it is characterised in that: the both ends of the fixed link (32)
The through slot (34) internal with side plate (30) is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747345.6A CN110444443B (en) | 2019-08-14 | 2019-08-14 | Overcurrent protection relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747345.6A CN110444443B (en) | 2019-08-14 | 2019-08-14 | Overcurrent protection relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110444443A true CN110444443A (en) | 2019-11-12 |
| CN110444443B CN110444443B (en) | 2021-07-09 |
Family
ID=68435323
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910747345.6A Active CN110444443B (en) | 2019-08-14 | 2019-08-14 | Overcurrent protection relay |
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| Country | Link |
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| CN (1) | CN110444443B (en) |
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| CN111417277A (en) * | 2020-04-21 | 2020-07-14 | 邱鑫 | Power supply structure of single-phase inverter testing device |
| CN111653453A (en) * | 2020-05-08 | 2020-09-11 | 中汇瑞德电子（芜湖）有限公司 | Relay with safety device |
| CN111863523A (en) * | 2020-08-04 | 2020-10-30 | 贵州电网有限责任公司 | SF6 density relay double-layer hollow sun-proof heat shield |
| CN111934257A (en) * | 2020-08-17 | 2020-11-13 | 贾书英 | Building electrical and intelligent wiring device |
| CN112158074A (en) * | 2020-10-28 | 2021-01-01 | 上海航盛实业有限公司 | Display control system of control screen in vehicle |
| CN112509863A (en) * | 2020-11-25 | 2021-03-16 | 苏州拓达精密机械有限公司 | Kovar alloy material relay case that protectiveness is high |
| CN113438853A (en) * | 2021-07-01 | 2021-09-24 | 山西隆腾机电科技有限公司 | Low-voltage intelligent motor protector |
| CN115206734A (en) * | 2022-09-14 | 2022-10-18 | 广州市兆能有限公司 | Relay with overcurrent protection |
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| CN111417277A (en) * | 2020-04-21 | 2020-07-14 | 邱鑫 | Power supply structure of single-phase inverter testing device |
| CN111417277B (en) * | 2020-04-21 | 2021-10-22 | 国网江苏省电力有限公司徐州供电分公司 | Power supply structure of single-phase inverter testing device |
| CN111653453A (en) * | 2020-05-08 | 2020-09-11 | 中汇瑞德电子（芜湖）有限公司 | Relay with safety device |
| CN111863523A (en) * | 2020-08-04 | 2020-10-30 | 贵州电网有限责任公司 | SF6 density relay double-layer hollow sun-proof heat shield |
| CN111863523B (en) * | 2020-08-04 | 2022-05-06 | 贵州电网有限责任公司 | SF6 density relay double-layer hollow sun-proof heat shield |
| CN111934257A (en) * | 2020-08-17 | 2020-11-13 | 贾书英 | Building electrical and intelligent wiring device |
| CN112158074A (en) * | 2020-10-28 | 2021-01-01 | 上海航盛实业有限公司 | Display control system of control screen in vehicle |
| CN112158074B (en) * | 2020-10-28 | 2022-05-31 | 上海航盛实业有限公司 | Display control system of control screen in vehicle |
| CN112509863A (en) * | 2020-11-25 | 2021-03-16 | 苏州拓达精密机械有限公司 | Kovar alloy material relay case that protectiveness is high |
| CN113438853A (en) * | 2021-07-01 | 2021-09-24 | 山西隆腾机电科技有限公司 | Low-voltage intelligent motor protector |
| CN115206734A (en) * | 2022-09-14 | 2022-10-18 | 广州市兆能有限公司 | Relay with overcurrent protection |
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