CN209434123U - A kind of breaker - Google Patents

A kind of breaker Download PDF

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Publication number
CN209434123U
CN209434123U CN201920409727.3U CN201920409727U CN209434123U CN 209434123 U CN209434123 U CN 209434123U CN 201920409727 U CN201920409727 U CN 201920409727U CN 209434123 U CN209434123 U CN 209434123U
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CN
China
Prior art keywords
section
breaker
main shaft
insulating layer
insulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920409727.3U
Other languages
Chinese (zh)
Inventor
韩志刚
刘毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Priority to CN201920409727.3U priority Critical patent/CN209434123U/en
Application granted granted Critical
Publication of CN209434123U publication Critical patent/CN209434123U/en
Priority to PL20166458.8T priority patent/PL3716305T3/en
Priority to EP20166458.8A priority patent/EP3716305B1/en
Priority to DK20166458.8T priority patent/DK3716305T3/en
Priority to KR1020200037842A priority patent/KR102388640B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H9/48—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H2050/028—Means to improve the overall withstanding voltage, e.g. creepage distances
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles

Abstract

Embodiment of the disclosure provides a kind of breaker.The breaker includes main shaft, including the first section and the second section；Moving contact component, along main shaft extending direction and be disposed on main shaft, and including moving contact；And driving mechanism, it is coupled to the first section and is suitable for driving moving contact component with main axis so that the static contact of moving contact contact or disengaging breaker, wherein main shaft further includes the insulating layer being arranged on the first section and the second section.Effective spindle insulating protection is formed by the insulating layer being arranged on the first section and the second section, to avoid main shaft when short circuit breakdown, reduces the risk of phase fault.

Description

A kind of breaker
Technical field
Embodiment of the disclosure relates generally to electric device, and more particularly, to the breaker of spindle insulating.
Background technique
Breaker is the electric current for referring to connect, under the conditions of carrying and disjunction normal circuit, and electric in defined exception The electric device of certain time and automatic breaking current can also be connected, be carried to (such as short circuit current) under the conditions of road.Breaker It is widely used in various productions and household electricity scene, is the important guarantee of safety utilization of electric power.It is made of metal in breaker Main shaft is easy the breakdown in short circuit under high voltage environment, causes phase fault, and this results in great security risks.
Utility model content
Current circuit breaker, especially dual-interruption point breaker, in order to guarantee the synchronism and module of contact action Makeup is matched, and is supported usually using one or two main shafts made of metal to run through the contact of each phase.However, metal main shaft It is easy breakdown in short circuit, causes phase fault, be particularly susceptible for occurring in the environment of AC/DC high voltage such alternate Short circuit.Phase fault will generate serious harm to breaker itself and its circuit protected.
In order to solve the problems, such as or at least partly solve that above-mentioned and other are potential, embodiment of the disclosure provides one Kind breaker, the breaker use the main shaft with insulating layer, can realize in the case where not changing breaker overall structure Effective insulating protection reduces the risk that phase fault occurs.
In one aspect of the present disclosure, a kind of breaker is provided.The breaker includes: main shaft, including the first section and Second section；Moving contact component, along main shaft extending direction and be disposed on main shaft, and including moving contact；And driving Mechanism is coupled to the first section and is suitable for driving moving contact component with main axis so that moving contact contact or disengaging open circuit The static contact of device, wherein main shaft further includes the insulating layer being arranged on the first section and the second section.
Breaker according to an embodiment of the present disclosure, by the insulating layer that is arranged on the first section and the second section come shape It is protected at effective spindle insulating, to avoid main shaft when short circuit breakdown, reduces the risk of phase fault.Therefore, in this way Breaker can have wider application, more suitable for being used in high voltage environment.
In some embodiments, the first section and the second section are made of metal, and the diameter of the first section is greater than the The diameter of two sections.In such embodiments, main shaft body is made of metal, and ensure that the workability and machine of main shaft itself Tool performance.Simultaneously by the way that the diameter of the second section to be set smaller than to the diameter of the first section, so that main shaft body is in stage shape, Therefore thicker insulating layer can be set on the second section, to further increase the insulation protection to main shaft.
In some embodiments, insulating layer includes the first insulating coating being arranged on the first section.In such implementation In example, by arranging insulating coating on the first section, it can be further enhanced in the case where not reducing spindle machine performance Insulation protection.Further, since main shaft is coupled to driving mechanism (such as, connecting rod) at the first section, it can be wear-resisting by selecting Insulating coating improve the abrasion resistance of main shaft, reduce the loss of the excess of stroke.
In some embodiments, insulating layer further includes the insulating sleeve being arranged on the second section.In such embodiment In, insulating sleeve can be installed on the second section after the first section of main shaft is coupled to driving mechanism.With this side Formula, reduces the difficulty of installation, while also avoiding being worn when insulating sleeve passes through driving mechanism.
In some embodiments, insulating layer further includes the second insulating coating and insulating sleeve being arranged on the second section. In such embodiments, the second insulating coating on the second section can together with the first insulating layer on the first section shape At, and insulating sleeve is easily installed on the second section.By this method, in the feelings for not increasing installation and manufacture difficulty Under condition, the insulating protection of main shaft is further improved.
In some embodiments, the thickness of insulating sleeve is in the range of 0.1mm to 0.3mm.In such embodiments, Effective insulation protection is formed using relatively thin insulating sleeve, without reducing the tough mechanical performance of main shaft itself.
In some embodiments, the insulating layer being arranged on the second section is formed by Shooting Technique.Such In embodiment, the insulating layer with the second section one can be formed using Shooting Technique, so that it is anti-to generate uniform, reliable insulation Shield.
In some embodiments, main shaft has the same diameter at the first section and the second section.In such implementation In example, by making main shaft that there is mono-disperse at different sections, it is ensured that the moving contact movement of the not homopolarity of breaker Synchronism and consistency.
In some embodiments, the first section is located at the middle section of main shaft, and the second section includes close to main shaft The part at both ends.In such embodiments, the insulation protection of the breaker greater than the two poles of the earth can be formed.
In some embodiments, breaker is four-pole circuit breaker.In such embodiments, can be formed has good master Axis insulation has widely applied four-pole circuit breaker.
In some embodiments, breaker is three-pole breaker.In such embodiments, can be formed has good master Axis insulation has widely applied three-pole breaker.
By the way that the explanation of exemplary embodiment, the further feature of the disclosure will become aobvious and easy referring to the drawings See.It should be appreciated that utility model content part is not intended to the key or important feature of mark embodiment of the disclosure, also non-purport For limiting the scope of the present disclosure.The other feature of the disclosure will be easy to understand by description below.
Detailed description of the invention
Describe the exemplary embodiment of the disclosure, the above-mentioned purpose of the disclosure and other mesh in more detail in conjunction with the accompanying drawings , feature and advantage will be apparent, wherein in an exemplary embodiment of the disclosure, the identical usual table of appended drawing reference Show identical component.
Fig. 1 shows the general illustration of breaker according to the exemplary embodiment of the disclosure；
Fig. 2 shows the partial sectional views of breaker shown in FIG. 1；
Fig. 3 shows the schematic diagram of the internal structure of breaker shown in FIG. 1；
Fig. 4 shows the schematic diagram according to the exemplary embodiment of the disclosure for forming breaker main shaft；And
Fig. 5 shows the schematic diagram of breaker main shaft according to the exemplary embodiment of the disclosure.
Through attached drawing, the same or similar element is indicated using the same or similar appended drawing reference.
Specific embodiment
The disclosure is described referring now to several example embodiments.It should be appreciated that these embodiments are only for making ability Field technique personnel better understood when and be achieved in the disclosure, rather than propose to the range of disclosed technique scheme any The purpose of limitation describes.
As it is used herein, term " includes " and its variant will be read as meaning " including but not limited to " open Term.Term "based" will be read as " at least based on part ".Term " one embodiment " and " embodiment " should be understood " at least one embodiment ".Term " another embodiment " is interpreted as " at least one other embodiment ".Term " first ", " the Two " etc. may refer to similar and different object.Other specific and implicit definition may be included below.Unless context In addition it explicitly points out, otherwise the definition of term is consistent throughout the specification.
As mentioned above, the breaker for using metal main shaft at present, is very easy in short circuit, since main shaft is hit It wears, phase fault is caused, especially under high voltage (> AC 690V) or DC environment (> DC 1000V).In normal short circuit In the case of, electric current flows successively through each pole of breaker.However when other component (such as stationary contact in metal main shaft and breaker Head) between occur dielectric breakdown when, cause phase fault.In the case where phase fault, the path of electric current is greatly reduced, even Cause the damage of breaker.Therefore, phase fault is very harmful.
In some traditional solutions, in order to reduce the risk of phase fault, the main shaft of breaker is formed as complete Plastic shaft, or docking or form main shaft to inserting by metal segments and plastic part.In such traditional solution, Although improving the insulating properties of main shaft, increases the manufacture difficulty of main shaft and reduce mechanical performance.
Embodiment of the disclosure provides a kind of breaker, which includes the main shaft with insulating layer, to solve Or it at least is partially solved above-mentioned and other potential problems.Some examples are described referring now to Fig. 1 to Fig. 5 to implement Example.
The overall knot of breaker 100 according to the exemplary embodiment of the disclosure is described in detail in conjunction with Fig. 1 to Fig. 3 first Structure.Fig. 1 shows the general illustration of breaker 100 according to the exemplary embodiment of the disclosure；Fig. 2 shows shown in Fig. 1 Breaker 100 partial sectional view；Fig. 3 shows the schematic diagram of the partial internal structure 300 of breaker shown in FIG. 1.
As shown in Figure 1, generally, breaker 100 described herein is the four-pole circuit breaker for including pole 111-114, wherein Each it is extremely suitable to be connected to phase line or zero curve.Breaker 100 further includes driving mechanism 105.As shown in Fig. 2, driving mechanism 105 can To include handle, operating mechanism, link mechanism etc..The scope of the present disclosure is not limited to specific driving mechanism, therefore not right herein It is described in detail.Driving mechanism 105 is located at a pole of breaker, such as positioned at pole 112.Pole 112 can also be referred to as machine Structure pole 112.
The components such as main shaft 310, moving contact 302, static contact 304 are located in the shell 103 of breaker 100.As shown in figure 3, Breaker 100 includes two main shafts 310, and main shaft 310 includes the first section 311 and the second section 312, wherein the first section 311 are located at mechanism pole 112.Each pole 111-114 of breaker 110 includes by static contact 304, moving contact 302 and contact-support The contact loop of 303 equal compositions.Moving contact component including moving contact 302 and contact-support 303 along main shaft 310 extension side To and be disposed on main shaft 310.
Driving mechanism 105 is coupled to the first section 311 of main shaft 310 and is suitable for driving moving contact component with main shaft 310 It rotates so that the static contact 304 of the contact of moving contact 302 or disengaging breaker 100.In the rough schematic view of Fig. 3, show Constitute the connecting rod 305 of a part of driving mechanism 105.Connecting rod 305 is coupled with the first section 311.When connecting rod 305 pushes or pulls up When, the moving contact 301 of each pole will be made synchronously to contact or be detached from corresponding static contact 304 by main shaft 310, thus closure or Disconnect corresponding contact loop.
It is only exemplary it should be appreciated that breaker 100 is shown as four-pole circuit breaker, and is not intended to limit the disclosure Range.Embodiment of the disclosure can be applied to various breakers, such as two pole breakers, three-pole breaker etc..In addition, driving Mechanism can be coupled to any pole of breaker.Showing breaker 100 in figs. 1 to 3 only for illustrative purpose has Two main shafts, but it is understood that breaker according to an embodiment of the present disclosure can have the main shaft of more or less numbers.
In order to increase the insulation protection of main shaft, reduce the risk of phase fault, other than main shaft body, main shaft 310 is also wrapped Include the insulating layer being arranged on the first section 311 and the second section 312.The insulating layer of main shaft 310 can be used any appropriate Mode is formed, including but not limited to insulating coating, insulating sleeve, injection molding etc..First section 311 and the second section 312 On insulating layer can be formed in identical or different mode, and can have identical or different thickness.
Main shaft 310 according to an embodiment of the present disclosure is described in detail below with reference to Fig. 4 to Fig. 5.Fig. 4 shows basis The schematic diagram of the formation breaker main shaft 310 of the exemplary embodiment of the disclosure.Fig. 5 shows the exemplary reality according to the disclosure Apply the schematic diagram of the breaker main shaft 310 of example.
In the example of fig. 4, main shaft 310 includes the stair-stepping main shaft body of presentation made of such as metal comprising First section 311 and the second section 312.The diameter d1 of first section 311 is greater than the diameter d2 of the second section 312.By made of metal At main shaft body it is easy to process and advantageously ensure that the tough mechanical performance of main shaft.The length L1 of first section 311 and Length L2, L3 of two sections 312 can be set according to actual needs.
The first insulating coating 401 is disposed on first section 311.It is any appropriate that coating, spraying etc. can be used Mode forms the first insulating coating 401.In view of driving mechanism 105 is coupled to main shaft 310 at the first section 311, such as The component of connecting rod 305 will generate abrasion to the first insulating coating 401.Therefore, in some embodiments, the first insulation can be applied Layer 401 is formed as wear-resisting insulating coating, such as the first insulating coating 401 can be formed as oxide (such as, aluminium oxide) Coating.By this method, the insulation protection of main shaft 310 had not only been enhanced, but also has improved the wear resistance of main shaft 310, to avoid surpassing The loss of journey.
In some embodiments, the insulating layer being arranged on the second section 312 can use the insulation of such as thermoplastic casing Casing 402 is formed.As shown in figure 3, in this case, can main shaft 310 main body (for example, on the first section It is arranged to have insulating layer) it has been fitted into after breaker 100, insulating sleeve 402 is directly sleeved on the second section 312. The difficulty for reducing installation in this way is worn when also avoiding thermoplastic casing across mechanism.
The thickness of insulating sleeve 402 can select according to actual needs.Relatively thin thermoplastic casing can be realized well Insulation effect.The thickness of insulating sleeve 402 can be in the range of 0.1mm to 0.3mm.Only for example, 0.15mm is thick Thermoplastic casing can effectively prevent the phase fault of main shaft；And the creepage distance of opposite phase is increased, dielectric is alternate after examination Do not puncture within 3000Vdc 5 seconds.
In some embodiments, the insulating layer being arranged on the second section 312 may include the second insulating coating, such as with First insulating coating 401 is formed together, and the second insulating coating can be identical or different with 401 thickness of the first insulating coating. In some embodiments, insulating sleeve 402 can also be arranged again on the second insulating coating, this can be further improved main shaft 310 insulating protection.
In some embodiments, it can also be formed by Shooting Technique and be arranged in the first section 311 or the second section 312 On insulating layer.For example, can will be placed in a mold, then including the main shaft body of the first section 311 and the second section 312 The insulating layer on the first section 311 and the second section 312 is formed by being molded.It in some embodiments, can be in the firstth area In the case where being disposed with the first insulating coating 401 in section 311, the both ends of main shaft 310 are individually positioned in the mold of injection molding In, to form the insulating layer on the second section 312.
Fig. 5 schematically illustrates the main shaft 310 being formed by including insulating layer comprising the first section 311 and arrangement The first insulating coating 401, the second section 312 and the insulating sleeve 402 being disposed thereon on it.Main shaft 310 is in the firstth area There is diameter D1 at section 311, and there is diameter D2 at the second section 312.In some embodiments, direct D1 can be basic It is upper to be equal to diameter D2.The main shaft for forming such uniform diameter facilitates the synchronism that the moving contact 302 of not homopolarity acts.So And, it should be understood that this is not restrictive, and breaker according to an embodiment of the present disclosure is in the first section 311 and It also can have different diameters at two sections 312.
In example described above, the first section 311 is located at the middle section of main shaft 310, and the second section 312 includes Close to the part at 310 both ends of main shaft.It should be appreciated that this is only exemplary, and it is not intended to limit the scope of the present disclosure.Firstth area The position of section and the second section can be set according to actual needs, such as two pole breakers, the first section and the second section It can respectively include the left end portion and right end portion of main shaft.
It should be understood that all numerical value described in the embodiment in detail above of the disclosure are all exemplary, and All numerical value is all selectable.
It should be understood that the embodiment in detail above of the disclosure is just for the sake of illustration or the original of the explanation disclosure Reason, rather than limit the disclosure.Therefore, within the spirit and principle of the utility model, it is made it is any modification, equally replace Generation, improvement etc., should be included within the scope of protection of this utility model.Meanwhile disclosure the attached claims are intended to cover Lid falls into all changes and modification in the equivalent on the scope of the claims and boundary or range and boundary.

Claims (11)

1. a kind of breaker (100) characterized by comprising
Main shaft (310), including the first section (311) and the second section (312)；
Moving contact component, along the main shaft (310) extending direction and be disposed on the main shaft (310), and including dynamic Contact (302)；And
Driving mechanism (105) is coupled to first section (311) and is suitable for driving the moving contact component with the main shaft (310) it rotates so as to the moving contact (302) contact or be detached from the static contacts (304) of the breaker (100),
Wherein the main shaft (310) further includes the insulation being arranged on first section (311) and second section (312) Layer.
2. breaker (100) according to claim 1, which is characterized in that first section (311) and secondth area Section (312) is made of metal, and the diameter (d1) of first section (311) is greater than the diameter of second section (312) (d2)。
3. breaker (100) according to claim 1, which is characterized in that the insulating layer includes being arranged in described first The first insulating coating (401) on section (311).
4. breaker (100) according to claim 3, which is characterized in that the insulating layer further includes being arranged in described Insulating sleeve (402) on two sections (312).
5. breaker (100) according to claim 3, which is characterized in that the insulating layer further includes being arranged in described The second insulating coating and insulating sleeve (402) on two sections (312).
6. breaker (100) according to claim 4 or 5, which is characterized in that the thickness of the insulating sleeve (402) exists In the range of 0.1mm to 0.3mm.
7. breaker (100) according to claim 1, which is characterized in that the institute being arranged on second section (312) Stating insulating layer is formed by Shooting Technique.
8. breaker (100) according to claim 1, which is characterized in that the main shaft (310) is in first section (311) and at second section (312) it has the same diameter.
9. breaker (100) according to claim 1, which is characterized in that first section (311) is located at the main shaft (310) middle section, and second section (312) includes close to the part at the both ends of the main shaft (310).
10. breaker (100) according to claim 1, which is characterized in that the breaker (100) is four-pole circuit breaker.
11. breaker (100) according to claim 1, which is characterized in that the breaker (100) is three-pole breaker.
CN201920409727.3U 2019-03-28 2019-03-28 A kind of breaker Active CN209434123U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201920409727.3U CN209434123U (en) 2019-03-28 2019-03-28 A kind of breaker
PL20166458.8T PL3716305T3 (en) 2019-03-28 2020-03-27 A circuit breaker
EP20166458.8A EP3716305B1 (en) 2019-03-28 2020-03-27 A circuit breaker
DK20166458.8T DK3716305T3 (en) 2019-03-28 2020-03-27 CIRCUIT BREAKER
KR1020200037842A KR102388640B1 (en) 2019-03-28 2020-03-27 A breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920409727.3U CN209434123U (en) 2019-03-28 2019-03-28 A kind of breaker

Publications (1)

Publication Number Publication Date
CN209434123U true CN209434123U (en) 2019-09-24

Family

ID=67978870

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920409727.3U Active CN209434123U (en) 2019-03-28 2019-03-28 A kind of breaker

Country Status (5)

Country Link
EP (1) EP3716305B1 (en)
KR (1) KR102388640B1 (en)
CN (1) CN209434123U (en)
DK (1) DK3716305T3 (en)
PL (1) PL3716305T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507454C2 (en) * 1975-02-21 1976-12-23 Ellenberger & Poensgen MULTI-POLE OVERCURRENT SWITCH
KR101677998B1 (en) * 2010-12-16 2016-11-22 엘에스산전 주식회사 Shaft assembly for mold cased circuit breaker
KR101545888B1 (en) * 2011-09-30 2015-08-20 엘에스산전 주식회사 Circuit breaker and method for manufactoring the insulating layer thereof
KR200485774Y1 (en) * 2016-08-31 2018-02-21 엘에스산전 주식회사 Multi-Pole Molded Case Circuit Breaker with Insulated Barrier for Rotate Pin
CN208077912U (en) * 2017-12-18 2018-11-09 浙江正泰电器股份有限公司 Breaker

Also Published As

Publication number Publication date
KR20200115365A (en) 2020-10-07
PL3716305T3 (en) 2024-02-12
EP3716305A1 (en) 2020-09-30
EP3716305B1 (en) 2023-08-09
DK3716305T3 (en) 2023-09-25
KR102388640B1 (en) 2022-04-19

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