CN110970243B - Circuit breaker capable of avoiding high-temperature fusing of electric arc - Google Patents
Circuit breaker capable of avoiding high-temperature fusing of electric arc Download PDFInfo
- Publication number
- CN110970243B CN110970243B CN201911351117.3A CN201911351117A CN110970243B CN 110970243 B CN110970243 B CN 110970243B CN 201911351117 A CN201911351117 A CN 201911351117A CN 110970243 B CN110970243 B CN 110970243B
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- block
- breaker body
- support column
- fixed
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Links
- 238000010891 electric arc Methods 0.000 title description 8
- 238000001816 cooling Methods 0.000 claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- 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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
Landscapes
- Breakers (AREA)
Abstract
The invention relates to the technical field of circuit breakers, and discloses a circuit breaker for avoiding high-temperature fusing of electric arcs, which comprises: the circuit breaker body, the inside fixed mounting of circuit breaker body has the fixed block, and the last fixed surface of fixed block installs the support column, and the inside fixed mounting of support column upper end has the retainer plate, and the lower extreme fixed mounting of retainer plate has the pilot lamp, the positive movable mounting of retainer plate has the deformation piece, and the lower extreme fixed mounting of deformation piece has movable strip. Through the cooperation use of deformation piece, activity strip, connecting block, fixed plate, connecting strip and cooling piece, can be for this internal temperature cooling of circuit breaker, guaranteed this internal can not make the untight condition of inside electronic component junction connection because of high temperature in the circuit breaker, avoided inseparable that electronic component connects, the circuit breaker does not play protection circuit's effect, has caused the unnecessary loss for the circuit.
Description
Technical Field
The invention relates to the technical field, in particular to a circuit breaker capable of avoiding high-temperature fusing of an electric arc.
Background
Circuit breakers, also known as air switches, also known as reclosers, low-voltage circuit breakers. The principle is as follows: when the working current exceeds the rated current, short circuit and loss of voltage, the circuit is automatically cut off, the circuit breaker can be used for distributing electric energy, the asynchronous motor is not frequently started, the power circuit and the motor are protected, and when the faults of serious overload or short circuit, undervoltage and the like occur, the circuit can be automatically cut off.
At present, the circuit breaker among the prior art, the electric current overloads in the circuit, when breaking through the circuit breaker, the explosion chamber among the circuit breaker can eliminate the electric arc that produces, however, when electric arc is being emitted, the electric current grow, calorific capacity aggravates, can produce a large amount of heat, may make some electronic component in the circuit breaker give melting, for example electronic component's tin soldering department, because the melting point of tin is very low, can melt when meeting heat, so the junction of electronic component among the circuit breaker may appear connecting untight, cause the circuit breaker in the use of later stage, electronic component connects untight, the circuit breaker does not play the effect of protection circuit, caused unnecessary loss for the circuit, on the other hand, whether electric leakage on the circuit breaker, people can't direct observation, need just know with the test pencil usually, it is more troublesome.
Disclosure of Invention
The invention adopts the following technical scheme for realizing the technical purpose: a circuit breaker for avoiding high temperature blowing of an arc, comprising: the circuit breaker body, the inside fixed mounting of circuit breaker body has the fixed block, and the last fixed surface of fixed block installs the support column, and the inside fixed mounting of support column upper end has the retainer plate, and the lower extreme fixed mounting of retainer plate has the pilot lamp, the positive movable mounting of retainer plate has the deformation piece, and the lower extreme fixed mounting of deformation piece has movable strip, the outer fixed surface of support column installs the connecting block, and the one end that the support column was kept away from to the connecting block is equipped with the fixed plate, and the upper end and the lower extreme of fixed plate fixed mounting respectively have the connecting strip, and fixed mounting has the cooling piece between two connecting strips, the upper end fixed mounting of support column has the electric piece of sensing.
Furthermore, the deformation block is made by iron sheet and copper sheet, so mainly utilize the coefficient of thermal expansion of copper to be greater than the coefficient of thermal expansion of iron so when being heated, the influence of thermal expansion coefficient, the copper sheet can be crooked to the direction of iron sheet, and the deformation block is crooked to the one side of keeping away from the pilot lamp promptly, drives the activity strip to the inner wall contact with the support column.
Furthermore, the middle upper end of the support column is provided with a movable cavity, an electric contact point is arranged inside the support column, and the electric contact point is electrically connected with the cooling block through a lead.
Furthermore, the distance between the cooling block and the fixing plate is not less than three centimeters, and the cooling block is prevented from being cooled by the surface contacted with the fixing plate.
Furthermore, the distance between the fixed plate and the support column is not less than five centimeters, and the fixed plate and the support column are mainly used for guaranteeing the ventilation between the fixed plate and the support column and helping heat dissipation.
Furthermore, the inductance block is electrically connected with the indicator light through a lead, and is mainly used for conveniently observing whether the circuit breaker body has the electric leakage condition or not.
Furthermore, the cooling block is electrically connected with an external power supply through a wire, the cooling block is an aluminum profile cooling fin 50 x 50-100 fan cooling radiator, and the MOS tube is connected with the cooling fin in rows.
Further, the inductive block is electrically connected with the breaker body.
The invention has the following beneficial effects:
1. this avoid electric arc high temperature fusing's circuit breaker uses through the cooperation of deformation piece, activity strip, connecting block, fixed plate, connecting strip and cooling piece, can cool down for this internal temperature of circuit breaker, has guaranteed that this internal electronic component that can not make inside because of high temperature of circuit breaker connects inseparably, has avoided because of inseparable that electronic component connects, and the circuit breaker does not play the effect of protection circuit, has caused the condition of unnecessary loss for the circuit.
2. This avoid electric arc high temperature fusing's circuit breaker uses through the cooperation of retainer plate, pilot lamp and electric induction piece, can play the effect of warning, has guaranteed that the circuit breaker body is inside if under the condition that takes place the electric leakage, the pilot lamp can light, has indicateed people's circuit breaker body and has had the condition of electric leakage, avoids people can't directly to discover the circuit breaker body electric leakage, injury staff's personal safety's the condition when the mistake touches.
Drawings
Fig. 1 is a schematic perspective view of the circuit breaker of the present invention.
Fig. 2 is a schematic side view of the circuit breaker body according to the present invention.
Fig. 3 is an enlarged schematic view of the detailed internal structure of the circuit breaker body according to the present invention.
FIG. 4 is a schematic view of the fixing ring, the indicating lamp, the deformation block and the movable strip of the present invention.
In the figure: 1 circuit breaker body, 2 fixed blocks, 3 support columns, 4 retainer plates, 5 pilot lamps, 6 deformation blocks, 7 activity strips, 8 connecting blocks, 9 fixed plates, 901 connecting strips, 10 cooling blocks, 11 electric induction blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, a circuit breaker for preventing high temperature fusing of an arc includes: the circuit breaker comprises a circuit breaker body 1, wherein a fixed block 2 is fixedly arranged inside the circuit breaker body 1, a support column 3 is fixedly arranged on the upper surface of the fixed block 2, a movable cavity is formed in the middle upper end of the support column 3, an electric contact point is arranged inside the support column 3 and is electrically connected with a cooling block 10 through a wire, a fixed ring 4 is fixedly arranged inside the upper end of the support column 3, an indicator lamp 5 is fixedly arranged at the lower end of the fixed ring 4, a deformation block 6 is movably arranged on the front surface of the fixed ring 4, a movable strip 7 is fixedly arranged at the lower end of the deformation block 6, a connecting block 8 is fixedly arranged on the outer surface of the support column 3, a fixed plate 9 is arranged at one end, far away from the support column 3, of the connecting block 8, the distance between the fixed plate 9 and the support column 3 is not less than five centimeters, the purpose of ensuring the ventilation between the fixed plate 9 and the support column 3 and helping heat dissipation is achieved, connecting strips 901 are respectively and fixedly arranged at the upper end and the lower end of the fixed plate 9, a cooling block 10 is fixedly installed between the two connecting strips 901, the cooling block 10 is electrically connected with an external power supply through a wire, the cooling block 10 is an aluminum profile cooling fin 50 x 50-100 fan cooling radiator, the MOS tubes are connected with each other to form a row of cooling fins, the distance between the cooling block 10 and the fixing plate 9 is not less than three centimeters, and the cooling block is mainly used for avoiding cooling the surface of the cooling block 10, which is in contact with the fixing plate 9.
Wherein, through the cooperation use of the deformation block 6, the movable strip 7, the connecting block 8, the fixed plate 9, the connecting strip 901 and the cooling block 10, can be for the temperature cooling in the circuit breaker body 1, guaranteed in the circuit breaker body 1 can not be because of high temperature, and make the untight condition of connection of inside electronic component junction, avoided inseparable that electronic component connects, the circuit breaker can not play protection circuit's effect, has caused unnecessary loss for the circuit.
Wherein, the deformation block 6 is made by iron sheet and copper sheet, so when being heated, mainly utilizes the coefficient of thermal expansion of copper to be greater than the coefficient of thermal expansion of iron, and the influence of thermal expansion coefficient is heated, and the copper sheet can be crooked to the direction of iron sheet, and the deformation block 6 is crooked to the one side of keeping away from pilot lamp 5 promptly, drives movable strip 7 to the inner wall contact with support column 3.
Wherein, use through retainer plate 4, pilot lamp 5 and the cooperation of feeling electric piece 11, can play the effect of warning, guaranteed that 1 inside if the condition of emergence electric leakage of circuit breaker body, pilot lamp 5 can light, has indicateed people circuit breaker body 1 to have the condition of electric leakage, avoids people can't directly to discover 1 electric leakage of circuit breaker body, when the mistake touches, injury staff's personal safety.
The specific models of the inductance block 11 and the indicator light 5 can be determined according to actual production movement.
When using, if circuit breaker body 1 is inside because the circuit transships, when producing a large amount of heat through electric arc, it turns outwards to be heated to warp piece 6, make the lower extreme motion of activity strip 7 to contact with the inner wall of support column 3, at this moment, the electric contact point circuit in the support column 3 is linked together, start cooling piece 10 and give the temperature in the circuit breaker body 1 and fall, can be for the temperature cooling in the circuit breaker body 1, guaranteed that can not be because of high temperature in the circuit breaker body 1, and make inside electronic component junction connect untight condition, and simultaneously, if the inside condition that takes place the electric leakage of circuit breaker body 1, electric current can be sensed to the sense piece 11, carry the electric current to pilot lamp 5 through the wire, pilot lamp 5 will light, remind people that circuit breaker body 1 is inside to have the electric leakage condition.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A circuit breaker for avoiding high temperature blowing of an arc, comprising: circuit breaker body (1), its characterized in that: the inside fixed mounting of circuit breaker body (1) has fixed block (2), the last fixed surface of fixed block (2) installs support column (3), the inside fixed mounting of support column (3) upper end has retainer plate (4), the lower extreme fixed mounting of retainer plate (4) has pilot lamp (5), the front surface of the fixed ring (4) is movably provided with a deformation block (6), the lower end of the deformation block (6) is fixedly provided with a movable strip (7), the outer surface of the supporting column (3) is fixedly provided with a connecting block (8), one end, far away from the supporting column (3), of the connecting block (8) is provided with a fixing plate (9), the upper end and the lower end of the fixing plate (9) are respectively and fixedly provided with a connecting strip (901), a cooling block (10) is fixedly arranged between the two connecting strips (901), and the upper end of the supporting column (3) is fixedly provided with a sensing block (11);
the deformation block (6) is made of an iron sheet and a copper sheet, and the thermal expansion coefficient of copper is mainly larger than that of iron, so that when the deformation block is heated, the copper sheet can be bent towards the iron sheet under the influence of the thermal expansion coefficient, namely, the deformation block (6) is bent towards one side far away from the indicator light (5), and the movable strip (7) is driven to be in contact with the inner wall of the support column (3);
the middle upper end of the supporting column (3) is provided with a movable cavity, an electric contact point is arranged inside the supporting column (3), and the electric contact point is electrically connected with the cooling block (10) through a lead;
the distance between the cooling block (10) and the fixing plate (9) is not less than three centimeters;
the distance between the fixed plate (9) and the support column (3) is not less than five centimeters;
the induction block (11) is electrically connected with the indicator light (5) through a lead;
the cooling block (10) is electrically connected with an external power supply through a lead;
the induction block (11) is electrically connected with the breaker body (1);
when the circuit breaker is used, if the inside of the circuit breaker body (1) is overloaded and a large amount of heat is generated through electric arcs, the deformation block (6) is heated and turned outwards, the lower end of the movable strip (7) moves to be in contact with the inner wall of the supporting column (3), at the moment, an electric contact point circuit in the supporting column (3) is communicated, the temperature reduction block (10) is started to reduce the temperature in the circuit breaker body (1) so as to reduce the temperature in the circuit breaker body (1), the condition that the connection of the electronic elements in the circuit breaker body (1) is not tight due to high temperature is ensured, and meanwhile, if the inside condition of leaking electricity that takes place of circuit breaker body (1), electric current is sensed to sensing piece (11), carries electric current to pilot lamp (5) through the wire, and pilot lamp (5) will light, reminds people that circuit breaker body (1) is inside to have the electric leakage condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351117.3A CN110970243B (en) | 2019-12-24 | 2019-12-24 | Circuit breaker capable of avoiding high-temperature fusing of electric arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351117.3A CN110970243B (en) | 2019-12-24 | 2019-12-24 | Circuit breaker capable of avoiding high-temperature fusing of electric arc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110970243A CN110970243A (en) | 2020-04-07 |
| CN110970243B true CN110970243B (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911351117.3A Active CN110970243B (en) | 2019-12-24 | 2019-12-24 | Circuit breaker capable of avoiding high-temperature fusing of electric arc |
Country Status (1)
| Country | Link |
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| CN (1) | CN110970243B (en) |
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| Publication number | Publication date |
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| CN110970243A (en) | 2020-04-07 |
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Effective date of registration: 20220627 Address after: 325600 No. 261, Central Avenue, Yueqing Economic Development Zone, Wenzhou, Zhejiang Province Applicant after: SHENHENG ELECTRIC EQUIPMENT Co.,Ltd. Address before: 414006 South Hunan Institute of technology, Xueyuan Road, Yueyang City, Hunan Province Applicant before: Ma Xiaohong |
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Effective date of registration: 20230919 Address after: No. 6 Xianyushan Road, Jiangnan Industrial Concentration Zone, Chizhou City, Anhui Province, 247100 Patentee after: CHIZHOU JIANGNAN ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: 325600 No. 261, Central Avenue, Yueqing Economic Development Zone, Wenzhou, Zhejiang Province Patentee before: SHENHENG ELECTRIC EQUIPMENT Co.,Ltd. |