CN109637902A - A kind of case for circuit breaker - Google Patents

A kind of case for circuit breaker Download PDF

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Publication number
CN109637902A
CN109637902A CN201811544843.2A CN201811544843A CN109637902A CN 109637902 A CN109637902 A CN 109637902A CN 201811544843 A CN201811544843 A CN 201811544843A CN 109637902 A CN109637902 A CN 109637902A
Authority
CN
China
Prior art keywords
buckle
case
circuit breaker
cavity
upper cover
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.)
Granted
Application number
CN201811544843.2A
Other languages
Chinese (zh)
Other versions
CN109637902B (en
Inventor
王聪
张菊英
王金良
王蓉
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.)
Jiakong Electric Power Co ltd
Original Assignee
JIAXING JIAKONG ELECTRIC EQUIPMENT MANUFACTURING Co Ltd
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 JIAXING JIAKONG ELECTRIC EQUIPMENT MANUFACTURING Co Ltd filed Critical JIAXING JIAKONG ELECTRIC EQUIPMENT MANUFACTURING Co Ltd
Priority to CN201811544843.2A priority Critical patent/CN109637902B/en
Publication of CN109637902A publication Critical patent/CN109637902A/en
Application granted granted Critical
Publication of CN109637902B publication Critical patent/CN109637902B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • H01H71/025Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts

Landscapes

  • Breakers (AREA)

Abstract

The invention discloses a kind of case for circuit breaker, belong to technical field of electric appliances, technical essential is, including bottom case and upper cover, the bottom case snaps connection mode with upper cover use and connects, cavity is provided on the upper lid, cavity bottom side has opening, top has injecting hole, buckle is set on upper lid, and for the buckle across being open and making in top insertion cavity, the top of the buckle is greater than the protrusion of opening bore with section, it can be bonded with cavity bottom on the downside of the protrusion, the button bit for being provided with and being clasped on bottom case.Using the breaker of case for circuit breaker of the invention, after assembling, cannot arbitrarily dismantle, secondary assembly difficulty is big after disassembly, it is ensured that structure is not altered this product in use, it is ensured that product using safe.And the assembly period in breaker production process of the present invention is relatively shortened, and production efficiency is improved.

Description

A kind of case for circuit breaker
Technical field
The invention belongs to technical field of electric appliances, concretely relate to a kind of case for circuit breaker.
Background technique
Breaker is the abbreviation of moulded case circuit breaker, and case for circuit breaker is made of upper housing and lower case, existing skill Case for circuit breaker in art generally uses screw connection mode to connect upper housing with lower case.
Breaker can close, carries and cut-off the electric current under normal loop condition and can close, and being can be defined The switching device of the electric current under abnormal loop condition is carried and cut-off in time.The implementations such as power circuit and electrical appliance can be protected Shield, can automatic shutdown circuit when serious overload or short circuit and the failures such as under-voltage occurs in they.
To ensure using safe, breaker manufacturer is generally not allowed anyone to dismount breaker, change open circuit privately Device structure, it is ensured that the performance of produced circuit breaker in use.
Summary of the invention
The object of the present invention is to provide a kind of case for circuit breaker, for preventing breaker private after producing and putting goods on the market Insecurity factor is brought from dismounting, and is improved by structure to improve assembling work efficiency.
In order to solve the above technical problems, the object of the present invention is achieved like this:
A kind of case for circuit breaker, including bottom case and upper cover, the bottom case and upper cover use snap connection mode and connect, described Cavity is provided on upper lid, cavity bottom has opening, and top has injecting hole, and buckle is arranged on upper lid, and the buckle is worn It crosses and is open and makes in top insertion cavity, there is section to be greater than the protrusion of opening bore on the top of the buckle, set on bottom case The button bit for being equipped with and being clasped, when buckle is engaged with button bit, protrusion compresses the bottom of cavity.
Preferred embodiment on the basis of above scheme and as above scheme: the injecting hole faces protrusion setting.
Preferred embodiment on the basis of above scheme and as above scheme: it is arranged on protrusion around protrusion side Ring type seal, and make ring type seal and cavity inner wall palette.
Preferred embodiment on the basis of above scheme and as above scheme: on the downside of the protrusion between cavity bottom It is provided with elastomeric pad.
Preferred embodiment on the basis of above scheme and as above scheme: the elastomer gasket construction has for centre The sheet of perforation.
Preferred embodiment on the basis of above scheme and as above scheme: the elastomeric pad is rubber material.
Preferred embodiment on the basis of above scheme and as above scheme: the buckle is lower end tool barbed the One buckle, and the grooving engaged with hangnail is provided on bottom case.
Preferred embodiment on the basis of above scheme and as above scheme: there are two first buckle lower end settings The opposite hangnail in position.
Preferred embodiment on the basis of above scheme and as above scheme: the buckle is that lower end has snap ring The second buckle, and the lug engaged with snap ring is provided on bottom case.
Preferred embodiment on the basis of above scheme and as above scheme: on the upper lid simultaneously be provided with it is several under Barbed first buckle of end tool and several lower ends have the second buckle of snap ring, and are correspondingly provided on bottom case and hangnail The grooving of engagement and the lug engaged with snap ring.
Preferred embodiment on the basis of above scheme and as above scheme: first buckle is arranged in upper cover Between regional location, it is described second buckle be distributed in upper cover two sides border area.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that
Case for circuit breaker of the invention connects bottom case and upper cover in the way of snapping connection, when assembly, using being connected to gas source Tool air-flow is injected into cavity from gas injection hole site, make to possess in cavity in a flash compared with strong gas pressure and to be close to protrusion empty Bottom of chamber portion and have retentivity, push upper cover and take advantage of a situation will buckle indentation bottom case on button bit and engage, realization pass through card Detain connection type connection bottom case and upper cover.
Case for circuit breaker of the invention is to be connected by a snap mode to connect, and when assembly only needs for bottom case and upper cover to be aligned And press all over being linked and packed for bottom case and upper cover is completed, it does not need to need rotation screw one by one as assembling other breakers To connect bottom case and upper cover, the assembly efficiency of bottom case and upper cover cooperation is improved, the assembly period of breaker entirety is shortened, is improved The assembling work efficiency of breaker.
Case for circuit breaker of the invention, the buckle for being used to connect is retrorsely aculeate first buckle in lower end, and is provided with The opposite hangnail in two positions, while on bottom case corresponding grooving is set as the button bit with the first snap engagement, it is such Connection be it is irreversible, further prevent this breaker to be dismantled privately.
In conclusion after assembling, cannot arbitrarily be dismantled using the breaker of case for circuit breaker of the invention, dismantle Secondary assembly difficulty is big later, it is ensured that structure is not altered this product in use, it is ensured that product using safe.And Assembly period in breaker production process of the present invention is relatively shortened, and production efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of case for circuit breaker of the invention;
Fig. 2 is bottom case schematic diagram of the invention;
Fig. 3 is upper cover schematic diagram of the invention;
Fig. 4 is the upper cover schematic diagram for being provided with buckle of the invention;
Fig. 5 is the second buckle structure schematic diagram of the invention;
Fig. 6 is the first buckle structure schematic diagram of the invention;
Fig. 7 is the portion A enlarged drawing of the invention.
In figure: 1- bottom case, 2- upper cover, 3- cavity, 4- opening, 5- injecting hole, the protrusion 6-, 7- elastomeric pad, 8- hangnail, 9- First buckle, 10- grooving, 11- second buckle, 12- lug, 13- snap ring, 14- sealing ring.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing in embodiment, to reality The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application a part is implemented Example, rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, shall fall in the protection scope of this application.
In the description of the present application, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower" is base In orientation or positional relationship shown in the drawings, it is merely for convenience of description the application and simplifies description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of application.
In the description of the present application, term " first ", " second " etc. are used for description purposes only, and should not be understood as instruction or It implies relative importance or implicitly indicates the quantity of indicated technical characteristic.
Refering to fig. 1-7, the invention discloses a kind of case for circuit breaker, including bottom case 1 and upper cover 2, the bottom case 1 and upper cover 2 uses snap connection mode and connect, and cavity 3 is provided in the upper cover 2, and 3 bottom of cavity has opening 4, and top has gas injection Buckle is arranged in hole 5 in upper cover 2, and the buckle is across opening 4 and makes in top insertion cavity 3, and the top of the buckle has Section is greater than the protrusion 6 of 4 bores of opening, and the button bit for being provided with and being clasped on bottom case 1 is convex when buckle is engaged with button bit It is close to and compresses the bottom of cavity 3 in portion 6.
Case for circuit breaker of the invention connects bottom case 1 and upper cover 2 in the way of snapping connection, when assembly, using being connected to gas The tools such as the air gun in source or the air nozzle being specially arranged inject air-flow into cavity 3 from 5 position of injecting hole, make cavity 3 in a flash Inside possess compared with strong gas pressure and so that protrusion 6 is close to 3 bottom of cavity and there is retentivity, pushes upper cover 2 and take advantage of a situation that buckle is pressed into bottom Button bit on shell 1 simultaneously engages, and realization is connected by a snap mode and connects bottom case 1 and upper cover 2.After cavity 3 is by discharge, card Button does not have the secondary condition for being caught in button bit, avoids other people from carrying out the breaker for using case for circuit breaker of the present invention to reach The operation behaviour of non-our factory's profession assembly.
The injecting hole 5 is further faced protrusion 6 to be arranged.Exist conducive to the gas entered in cavity 3 from injecting hole 5 Moment causes the effect of pushing to protrusion 6, conducive to the retentivity that 3 bottom of cavity is close in protrusion 6 is formed.
Force in protrusion 6 to be conducive to injection air-flow in assembly, can reduce as much as possible protrusion 6 and 3 side wall of cavity it Between gap.And further, it is quickly and conveniently assembled to realize, reduces air pressure and the stream for injecting air-flow from injecting hole 5 The ring type seal 14 around 6 side of protrusion is arranged on protrusion 6, and makes in ring type seal 14 and cavity 3 for the requirement of amount condition Wall palette, under such situation, the gas of injection cavity 3 can be maintained to No leakage in cavity 3 and press In protrusion 6, make protrusion 6 that there is the retentivity of stronger fitting and 3 bottom of cavity.
When sealing ring 14 is set, annular groove can be opened up in 6 side of protrusion, sealing ring 14 is just then set in annular In groove.
Elastomeric pad 7 further is set between 6 downside of protrusion and 3 bottom of cavity, elastomeric pad 7 has buckle There is a reversed pulling force, can remain close connection with bottom case 1 and upper cover 2.And 7 structure of elastomeric pad is set for intermediate tool There is the sheet of perforation, be supported between 3 bottom of protrusion 6 and cavity in favor of elastomeric pad 7 and be close to protrusion 6 and cavity 3 respectively Bottom.If it is cricoid elastomeric pad 7, then may occur sideslip in the heart of any further constraint, be detached from protrusion 6 With 3 bottom of cavity.
The making material for using rubber material as elastomeric pad 7 is further selected, the durability and elasticity of rubber are more The stable connection between bottom case 1 and upper cover 2 is kept in the case where being used for a long time environment conducive to case for circuit breaker of the invention, it will not be due to 7 aged deterioration of elastomeric pad leads to the presence of installation gap between bottom case 1 and upper cover 2.
Mode is snapped connection as one kind of the invention, the buckle is the first buckle 9 that lower end has hangnail 8, and The grooving 10 engaged with hangnail 8 is provided on bottom case 1, the grooving 10 buckles 9 buttons engaged as with first, and again into one Step ground, first buckle, 9 lower ends setting there are two the opposite hangnail 8 in position, such connection be it is irreversible, further prevent Only this breaker is dismantled privately.
Mode is snapped connection as another of the invention, the buckle is the second card that lower end has snap ring 13 Button 11, and the lug 12 engaged with snap ring 13 is provided on bottom case 1, lug 12 engages connection with the second buckle 11 as detent Bottom case 1 and upper cover 2.
Mode is snapped connection as another of the invention, the buckle includes the first card that several lower ends have hangnail 8 Button 9 and several lower ends have the second buckle 11 of snap ring 13, and the grooving engaged with hangnail 8 is correspondingly provided on bottom case 1 10 and the lug 12 that is engaged with snap ring 13.
Further, the intermediate region position of upper cover 2 is arranged in first buckle 9, and second buckle 11 is distributed in 2 two sides border area of upper cover.First buckle 9 with the connection of grooving 10 be it is irreversible, can be conducive to preventing this breaker It is dismantled privately, since the first buckle 9 is relatively large with the connection connection structure space hold position of grooving 10, and the second buckle The 11 structure space engaged positions that connect with lug 12 are smaller, the intermediate region position of the upper cover 2, and buckle 11 points for second It is distributed in 2 two sides border area of upper cover, the case for circuit breaker of such setting is guaranteeing to connect reliably simultaneously, is conducive to present invention open circuit The production of device shell.
It using the breaker of case for circuit breaker of the invention, after assembling, cannot arbitrarily dismantle, secondary dress after disassembly It is big with difficulty, it is ensured that structure is not altered this product in use, it is ensured that product using safe.And open circuit of the invention Assembly period in device production process is relatively shortened, and production efficiency is improved.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.

Claims (10)

1. a kind of case for circuit breaker, including bottom case (1) and upper cover (2), the bottom case (1) and upper cover (2) use the side of snapping connection Formula connection, it is characterised in that: be provided with cavity (3) on the upper cover (2), cavity (3) bottom has opening (4), and top has Buckle is arranged in injecting hole (5) on upper cover (2), and the buckle is across opening (4) and makes in top insertion cavity (3), the card The protrusion (6) that there is section to be greater than opening (4) bore on the top of button, the button bit for being provided with and being clasped on bottom case (1), when Protrusion (6) compress the bottom of cavity (3) when buckle is engaged with button bit.
2. case for circuit breaker according to claim 1, it is characterised in that: the injecting hole (5) faces protrusion (6) and sets It sets.
3. case for circuit breaker according to claim 1, it is characterised in that: be arranged on protrusion (6) around protrusion (6) side Ring type seal (14), and make ring type seal (14) and cavity (3) inner wall palette.
4. case for circuit breaker according to claim 1, it is characterised in that: on the downside of the protrusion (6) with cavity (3) bottom it Between be provided with elastomeric pad (7).
5. case for circuit breaker according to claim 4, it is characterised in that: elastomeric pad (7) structure has for centre The sheet of perforation.
6. case for circuit breaker according to claim 1, it is characterised in that: the buckle be lower end have hangnail (8) the One buckle (9), and the grooving (10) engaged with hangnail (8) is provided on bottom case (1).
7. case for circuit breaker according to claim 6, it is characterised in that: there are two first buckle (9) lower end settings The opposite hangnail in position (8).
8. case for circuit breaker according to claim 1, it is characterised in that: the buckle is that lower end has snap ring (13) The second buckle (11), and the lug (12) engaged with snap ring (13) is provided on bottom case (1).
9. case for circuit breaker according to claim 1, it is characterised in that: the buckle includes that several lower ends have hangnail (8) the first buckle (9) and several lower ends has second buckle (11) of snap ring (13), and is correspondingly arranged on bottom case (1) The lug (12) for having the grooving (10) engaged with hangnail (8) and being engaged with snap ring (13).
10. case for circuit breaker according to claim 9, it is characterised in that: first buckle (9) is arranged in upper cover (2) Intermediate region position, it is described second buckle (11) is distributed in upper cover (2) two sides border area.
CN201811544843.2A 2018-12-17 2018-12-17 Circuit breaker shell Active CN109637902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811544843.2A CN109637902B (en) 2018-12-17 2018-12-17 Circuit breaker shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811544843.2A CN109637902B (en) 2018-12-17 2018-12-17 Circuit breaker shell

Publications (2)

Publication Number Publication Date
CN109637902A true CN109637902A (en) 2019-04-16
CN109637902B CN109637902B (en) 2024-02-23

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ID=66074899

Family Applications (1)

Application Number Title Priority Date Filing Date
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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1137849A (en) * 1954-10-28 1957-06-04 Westinghouse Electric Corp Switch-circuit breaker
EP0626711A1 (en) * 1993-05-26 1994-11-30 Bticino S.P.A. A safety coupling device between two modular electric apparatus
EP0717425A1 (en) * 1994-12-13 1996-06-19 Bticino S.P.A. A differential protection module with safety coupling for coupling to a multipole switch block
WO2001016980A1 (en) * 1999-08-30 2001-03-08 Eaton Corporation Circuit interrupter having base with outer wall support and having improved operating mechanism securement
CN201199509Y (en) * 2008-04-28 2009-02-25 江苏西蒙智控设备有限公司 Connection device for electric leakage circuit breaker
CN205050785U (en) * 2015-10-20 2016-02-24 乐清市海达胶塑配件厂 Moulded case circuit breaker casing
JP2016040971A (en) * 2014-08-12 2016-03-24 富士電機機器制御株式会社 Electric apparatus
CN205621678U (en) * 2016-05-24 2016-10-05 浙江共进电器科技有限公司 Intelligent molded case circuit breaker
CN205845857U (en) * 2016-06-28 2016-12-28 上海通用广电电力元件有限公司 A kind of low-pressure plastic shell circuit breaker cover anti-disassembling mechanism
CN206282807U (en) * 2016-12-28 2017-06-27 杭州尚美电气有限公司 Switch disconnector
CN206349312U (en) * 2016-12-16 2017-07-21 浙江正泰电器股份有限公司 Residual current action breaker connection structure of outer shell
CN107591292A (en) * 2017-11-06 2018-01-16 鹤山市辉域成套设备有限公司 A kind of miniature circuit breaker support
KR20180090598A (en) * 2017-02-03 2018-08-13 엘에스산전 주식회사 Circuit breaker
CN208093478U (en) * 2018-03-29 2018-11-13 浙江英博电气股份有限公司 A kind of novel breaker
CN209133431U (en) * 2018-12-17 2019-07-19 嘉兴市加控电气设备制造有限公司 A kind of case for circuit breaker

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1137849A (en) * 1954-10-28 1957-06-04 Westinghouse Electric Corp Switch-circuit breaker
EP0626711A1 (en) * 1993-05-26 1994-11-30 Bticino S.P.A. A safety coupling device between two modular electric apparatus
EP0717425A1 (en) * 1994-12-13 1996-06-19 Bticino S.P.A. A differential protection module with safety coupling for coupling to a multipole switch block
WO2001016980A1 (en) * 1999-08-30 2001-03-08 Eaton Corporation Circuit interrupter having base with outer wall support and having improved operating mechanism securement
CN201199509Y (en) * 2008-04-28 2009-02-25 江苏西蒙智控设备有限公司 Connection device for electric leakage circuit breaker
JP2016040971A (en) * 2014-08-12 2016-03-24 富士電機機器制御株式会社 Electric apparatus
CN205050785U (en) * 2015-10-20 2016-02-24 乐清市海达胶塑配件厂 Moulded case circuit breaker casing
CN205621678U (en) * 2016-05-24 2016-10-05 浙江共进电器科技有限公司 Intelligent molded case circuit breaker
CN205845857U (en) * 2016-06-28 2016-12-28 上海通用广电电力元件有限公司 A kind of low-pressure plastic shell circuit breaker cover anti-disassembling mechanism
CN206349312U (en) * 2016-12-16 2017-07-21 浙江正泰电器股份有限公司 Residual current action breaker connection structure of outer shell
CN206282807U (en) * 2016-12-28 2017-06-27 杭州尚美电气有限公司 Switch disconnector
KR20180090598A (en) * 2017-02-03 2018-08-13 엘에스산전 주식회사 Circuit breaker
CN107591292A (en) * 2017-11-06 2018-01-16 鹤山市辉域成套设备有限公司 A kind of miniature circuit breaker support
CN208093478U (en) * 2018-03-29 2018-11-13 浙江英博电气股份有限公司 A kind of novel breaker
CN209133431U (en) * 2018-12-17 2019-07-19 嘉兴市加控电气设备制造有限公司 A kind of case for circuit breaker

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Address after: 314000 north side of Miaoxia bridge, Zhengyuan Road, Youchegang, Xiuzhou District, Jiaxing City, Zhejiang Province

Patentee after: JiaKong Electric Power Co.,Ltd.

Country or region after: China

Address before: 314000 north side of Miaoxia bridge, Zhengyuan Road, Youchegang, Xiuzhou District, Jiaxing City, Zhejiang Province

Patentee before: JIAXING JIAKONG ELECTRICAL EQUIPMENT MANUFACTURE CO.,LTD.

Country or region before: China

CP03 Change of name, title or address