CN109637902B - Circuit breaker shell - Google Patents
Circuit breaker shell Download PDFInfo
- Publication number
- CN109637902B CN109637902B CN201811544843.2A CN201811544843A CN109637902B CN 109637902 B CN109637902 B CN 109637902B CN 201811544843 A CN201811544843 A CN 201811544843A CN 109637902 B CN109637902 B CN 109637902B
- Authority
- CN
- China
- Prior art keywords
- buckle
- circuit breaker
- cavity
- upper cover
- shell
- 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.)
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Links
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a circuit breaker shell, which belongs to the technical field of electric appliances and is technically characterized by comprising a bottom shell and an upper cover, wherein the bottom shell and the upper cover are connected in a buckling connection mode, a cavity is arranged on the upper cover, an opening is formed in the bottom side of the cavity, an air injection hole is formed in the top of the cavity, a buckle is arranged on the upper cover, the buckle penetrates through the opening and enables the top end to be inserted into the cavity, the top end of the buckle is provided with a convex part with the section larger than the caliber of the opening, the lower side of the convex part can be attached to the bottom of the cavity, and a buckling position matched with the buckle is arranged on the bottom shell. The circuit breaker using the circuit breaker shell of the invention can not be disassembled at will after being assembled, and the secondary assembly difficulty after the disassembly is high, so that the structure of the circuit breaker shell is not changed in the use process, and the use safety of the circuit breaker shell is ensured. And the assembly period in the production process of the circuit breaker is relatively shortened, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of electric appliances, and particularly relates to a circuit breaker shell.
Background
The circuit breaker is short for a plastic shell type circuit breaker, the circuit breaker shell consists of an upper shell and a lower shell, and the circuit breaker shell in the prior art is generally connected with the upper shell and the lower shell in a screw connection mode.
The circuit breaker is a switching device capable of switching on and off a current under normal circuit conditions and capable of switching on and off a current under abnormal circuit conditions within a predetermined time. The protection of the power supply circuit, the electric appliance and the like can be realized, and the circuit can be automatically cut off when serious overload, short circuit, undervoltage and other faults occur.
To ensure safe use, circuit breaker manufacturers generally do not allow anyone to privately disassemble and assemble the circuit breaker, change the circuit breaker structure, and ensure the performance of the produced circuit breaker product in the use process.
Disclosure of Invention
The invention aims to provide a circuit breaker shell which is used for preventing unsafe factors caused by the fact that a circuit breaker is disassembled and assembled privately after being produced and put into the market, and improves the assembly operation efficiency through structural improvement.
In order to solve the technical problems, the aim of the invention is realized as follows:
the utility model provides a circuit breaker shell, includes drain pan and upper cover, drain pan and upper cover adopt the buckle connected mode to connect, be provided with the cavity on the upper cover, the cavity bottom has the opening, and the top has the gas injection hole, sets up the buckle on the upper cover, the buckle passes the opening and makes the top insert in the cavity, the top of buckle has the cross-section to be greater than the convex part of opening bore, is provided with on the drain pan with buckle complex knot position, and the convex part compresses tightly the bottom of cavity when buckle and knot position joint.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the gas injection hole is arranged opposite to the convex part.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: an annular sealing ring surrounding the side face of the convex part is arranged on the convex part, and the annular sealing ring is in sealing fit with the inner wall of the cavity.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: an elastic gasket is arranged between the lower side of the convex part and the bottom of the cavity.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the elastic gasket structure is a sheet with a perforation in the middle.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the elastic gasket is made of rubber.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the buckle is a first buckle with a barb at the lower end, and a cutting groove which is jointed with the barb is arranged on the bottom shell.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the lower end of the first buckle is provided with two barbs with opposite positions.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the buckle is a second buckle with a clamping ring at the lower end, and a lug which is engaged with the clamping ring is arranged on the bottom shell.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the upper cover is simultaneously provided with a plurality of first buckles with barbs at the lower ends and a plurality of second buckles with snap rings at the lower ends, and correspondingly, the bottom shell is provided with a notch engaged with the barbs and a lug engaged with the snap rings.
The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the first buckles are arranged at the middle area of the upper cover, and the second buckles are distributed at the edge areas at two sides of the upper cover.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
the circuit breaker shell is connected with the bottom shell and the upper cover in a buckle connection mode, and when the circuit breaker shell is assembled, air flow is injected into the cavity from the air injection hole position by using a tool connected with an air source, so that stronger air pressure is kept in the cavity at one instant, the convex part is tightly attached to the bottom of the cavity and has a retaining force, the upper cover is pushed, and the buckle is pressed into the buckle position on the bottom shell in a homeotropic mode and is connected with the buckle position, so that the bottom shell and the upper cover are connected in the buckle connection mode.
According to the circuit breaker shell, the shell is connected in the buckle connection mode, and when the circuit breaker shell is assembled, the bottom shell and the upper cover are only required to be aligned and pressed to complete connection assembly of the bottom shell and the upper cover, and one-by-one rotation screws are not required to be required to connect the bottom shell and the upper cover like other circuit breaker assemblies, so that the assembly efficiency of the bottom shell and the upper cover is improved, the whole assembly period of the circuit breaker is shortened, and the assembly operation efficiency of the circuit breaker is improved.
The circuit breaker shell is characterized in that the buckle used for connection is a first buckle with a barb at the lower end, two barbs with opposite positions are arranged, and corresponding cutting grooves are arranged on the bottom shell to serve as buckling positions which are jointed with the first buckle, so that the connection is irreversible, and the circuit breaker is further prevented from being disassembled privately.
In summary, after the circuit breaker using the circuit breaker shell disclosed by the invention is assembled, the circuit breaker can not be disassembled at will, the secondary assembly difficulty is high after the disassembly, the structure of the circuit breaker shell is not changed in the use process, and the use safety of the circuit breaker shell is ensured. And the assembly period in the production process of the circuit breaker is relatively shortened, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker housing of the present invention;
FIG. 2 is a schematic view of a bottom shell of the present invention;
FIG. 3 is a schematic view of the upper cover of the present invention;
FIG. 4 is a schematic view of the upper cover with a buckle according to the present invention;
FIG. 5 is a schematic view of a second latch structure according to the present invention;
FIG. 6 is a schematic view of a first latch structure according to the present invention;
fig. 7 is an enlarged view of the portion a of the present invention.
In the figure: 1-bottom shell, 2-upper cover, 3-cavity, 4-opening, 5-gas filling hole, 6-convex part, 7-elastic gasket, 8-barb, 9-first buckle, 10-cutting groove, 11-second buckle, 12-lug, 13-snap ring, 14-sealing ring.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, based on the examples given, which a person of ordinary skill in the art would obtain without undue burden, are within the scope of protection of the present application.
In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.
In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1-7, the invention discloses a circuit breaker shell, which comprises a bottom shell 1 and an upper cover 2, wherein the bottom shell 1 and the upper cover 2 are connected in a buckle connection mode, a cavity 3 is arranged on the upper cover 2, an opening 4 is arranged at the bottom of the cavity 3, an air injection hole 5 is arranged at the top, a buckle is arranged on the upper cover 2, the buckle penetrates through the opening 4 and enables the top end to be inserted into the cavity 3, the top end of the buckle is provided with a convex part 6 with a section larger than the caliber of the opening 4, a buckle position matched with the buckle is arranged on the bottom shell 1, and when the buckle is jointed with the buckle position, the convex part 6 is clung to and tightly presses the bottom of the cavity 3.
The circuit breaker shell of the invention utilizes the buckle connection mode to connect the bottom shell 1 and the upper cover 2, when in assembly, the air gun connected with the air source or tools such as the air nozzle specially arranged are utilized to inject the air flow into the cavity 3 from the position of the air injection hole 5, the cavity 3 is kept with stronger air pressure at one instant, the convex part 6 is tightly attached to the bottom of the cavity 3 and has a retaining force, the upper cover 2 is pushed and the buckle is pressed into the buckling position on the bottom shell 1 in order to be jointed with the buckling position, and the bottom shell 1 and the upper cover 2 are connected in the buckle connection mode. After the cavity 3 is released, the buckle does not have the condition of secondary clamping into the buckling position, so that the operation behavior of other people for non-factory professional assembly of the circuit breaker using the circuit breaker shell is avoided.
The gas injection hole 5 is further provided opposite to the convex portion 6. The gas entering the cavity 3 from the gas injection hole 5 is favorable for instantaneously causing a pushing action on the convex part 6, and is favorable for forming the holding force of the convex part 6 tightly attached to the bottom of the cavity 3.
To facilitate the application of the injected air flow to the boss 6 during assembly, the gap between the boss 6 and the side wall of the cavity 3 may be reduced as much as possible. And further, in order to realize more convenient assembly, the requirement of air pressure and flow rate of air flow injected from the air injection hole 5 is reduced, an annular sealing ring 14 surrounding the side face of the convex part 6 is arranged on the convex part 6, and the annular sealing ring 14 is in sealing fit with the inner wall of the cavity 3, under the condition, the air injected into the cavity 3 can be kept in the cavity 3 without leakage and can press the convex part 6, so that the convex part 6 has stronger fit and keeping force with the bottom of the cavity 3.
When the sealing ring 14 is arranged, an annular groove can be formed in the side face of the convex part 6, and then the sealing ring 14 is sleeved in the annular groove.
Further, an elastic gasket 7 is arranged between the lower side of the convex part 6 and the bottom of the cavity 3, and the elastic gasket 7 enables the buckle to have a reverse pulling force, so that the bottom shell 1 and the upper cover 2 can be tightly connected all the time. The elastic gasket 7 is provided in a sheet shape with a perforation in the middle, so that the elastic gasket 7 is supported between the convex part 6 and the bottom of the cavity 3 and is respectively clung to the convex part 6 and the bottom of the cavity 3. If the elastic pad 7 is annular, it may be subject to a deviation from the convex portion 6 and the bottom of the cavity 3 in the event of any constraint.
The rubber material is further selected as the manufacturing material of the elastic gasket 7, so that the durability and elasticity of the rubber are more beneficial to keeping the connection between the bottom shell 1 and the upper cover 2 stable in a long-term use environment, and the installation gap between the bottom shell 1 and the upper cover 2 can not be caused by the aging and damage of the elastic gasket 7.
As a snap connection mode of the present invention, the snap is a first snap 9 having a barb 8 at its lower end, and a notch 10 engaged with the barb 8 is provided on the bottom case 1, the notch 10 is used as a snap engaged with the first snap 9, and still further, the lower end of the first snap 9 is provided with two barbs 8 at opposite positions, so that the connection is irreversible, and the circuit breaker is further prevented from being disassembled privately.
As another fastening connection mode of the present invention, the fastening is a second fastening 11 with a fastening ring 13 at the lower end, and a lug 12 engaged with the fastening ring 13 is disposed on the bottom shell 1, and the lug 12 is engaged with the second fastening 11 as a fastening position to connect the bottom shell 1 and the upper cover 2.
As a further snap connection of the invention, the snap comprises a number of first snaps 9 with barbs 8 at their lower ends and a number of second snaps 11 with snap rings 13 at their lower ends, and correspondingly a groove 10 engaging the barbs 8 and a lug 12 engaging the snap rings 13 are provided on the bottom shell 1.
Further, the first buckles 9 are disposed at the middle area of the upper cover 2, and the second buckles 11 are distributed at two side edge areas of the upper cover 2. The connection between the first buckle 9 and the slot 10 is irreversible, so that the circuit breaker can be prevented from being disassembled privately, and the circuit breaker shell is beneficial to the manufacture of the circuit breaker shell while the connection reliability is ensured due to the fact that the occupied space of the connection structure between the first buckle 9 and the slot 10 is relatively large, the occupied space of the structure between the second buckle 11 and the lug 12 is small, the middle area of the upper cover 2 is positioned, the second buckles 11 are distributed in the edge areas on two sides of the upper cover 2.
The circuit breaker using the circuit breaker shell of the invention can not be disassembled at will after being assembled, and the secondary assembly difficulty after the disassembly is high, so that the structure of the circuit breaker shell is not changed in the use process, and the use safety of the circuit breaker shell is ensured. And the assembly period in the production process of the circuit breaker is relatively shortened, and the production efficiency is improved.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. The utility model provides a circuit breaker shell, includes drain pan (1) and upper cover (2), drain pan (1) and upper cover (2) adopt buckle connected mode to connect, its characterized in that: the upper cover (2) is provided with a cavity (3), the bottom of the cavity (3) is provided with an opening (4), the top of the cavity is provided with a gas injection hole (5), the upper cover (2) is provided with a buckle, the buckle penetrates through the opening (4) and enables the top end of the buckle to be inserted into the cavity (3), the top end of the buckle is provided with a convex part (6) with the section larger than the caliber of the opening (4), the bottom shell (1) is provided with a buckling position matched with the buckle, and when the buckle is jointed with the buckling position, the convex part (6) presses the bottom of the cavity (3); the gas injection hole (5) is arranged opposite to the convex part (6); an annular sealing ring (14) surrounding the side surface of the convex part (6) is arranged on the convex part (6), and the annular sealing ring (14) is in sealing fit with the inner wall of the cavity (3); an elastic gasket (7) is arranged between the lower side of the convex part (6) and the bottom of the cavity (3).
2. The circuit breaker housing of claim 1, wherein: the elastic gasket (7) is in a sheet shape with a perforation in the middle.
3. The circuit breaker housing of claim 1, wherein: the buckle is a first buckle (9) with a barb (8) at the lower end, and a cutting groove (10) which is engaged with the barb (8) is arranged on the bottom shell (1).
4. A circuit breaker housing according to claim 3, wherein: the lower end of the first buckle (9) is provided with two barbs (8) with opposite positions.
5. The circuit breaker housing of claim 1, wherein: the buckle is a second buckle (11) with a clamping ring (13) at the lower end, and a lug (12) which is engaged with the clamping ring (13) is arranged on the bottom shell (1).
6. The circuit breaker housing of claim 1, wherein: the buckle comprises a plurality of first buckles (9) with barbs (8) at the lower ends and a plurality of second buckles (11) with snap rings (13) at the lower ends, and a groove (10) which is engaged with the barbs (8) and a lug (12) which is engaged with the snap rings (13) are correspondingly arranged on the bottom shell (1).
7. The circuit breaker housing of claim 6, wherein: the first buckles (9) are arranged in the middle area of the upper cover (2), and the second buckles (11) are distributed in the edge areas on two sides of the upper cover (2).
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 CN109637902A (en) | 2019-04-16 |
| CN109637902B true CN109637902B (en) | 2024-02-23 |
Family
ID=66074899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811544843.2A Active CN109637902B (en) | 2018-12-17 | 2018-12-17 | Circuit breaker shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109637902B (en) |
Citations (15)
| 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 |
-
2018
- 2018-12-17 CN CN201811544843.2A patent/CN109637902B/en active Active
Patent Citations (15)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109637902A (en) | 2019-04-16 |
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