CN205050785U - Moulded case circuit breaker casing - Google Patents
Moulded case circuit breaker casing Download PDFInfo
- Publication number
- CN205050785U CN205050785U CN201520814602.0U CN201520814602U CN205050785U CN 205050785 U CN205050785 U CN 205050785U CN 201520814602 U CN201520814602 U CN 201520814602U CN 205050785 U CN205050785 U CN 205050785U
- Authority
- CN
- China
- Prior art keywords
- base
- upper cover
- fixture
- mounting
- storage tank
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a moulded case circuit breaker casing, include base and the upper cover that cooperatees and be connected with the base, the upper cover passes through the mounting with the base and is connected, the rectangular hole that supplies the mounting to wear to establish is seted up to the upper cover, the base is equipped with the storage tank that holds the mounting part, the mounting is including having the pothook that can take place elastic deformation, offer the recess that is used for the pothook joint in the storage tank, it is fixed mutually with the base with the upper cover of circuit breaker with the most swift mode, the operation only need with the mounting insert the rectangular downthehole of upper cover and with the groove phase joint of base storage tank, pothook on the mounting can produce elastic deformation and incurve when entering into the storage tank, up to pothook and groove phase block, extract the mounting through the shifting block during dismantlement, the separation that upper cover and base were realized to the recess is thrown off to the pothook, and the with low costs of manufacturing can be changed to the mounting.
Description
Technical field
The utility model relates to breaker technical field, and more particularly, it relates to a kind of housing of breaker of plastic casing.
Background technology
Usually, breaker of plastic casing (MCCB) is a kind of circuit breaker by obtaining in cut-off/close mechanism, trip gear etc. overall package to the container of insulating material.MCCB typical case is so a kind of mechanism: its power path that can make to be in using state is cut-off/close manually or by the controller for electric consumption being positioned at insulating vessel outside, and transshipping, short circuit etc. time automatic shutdown circuit footpath.
Existing breaker of plastic casing includes base and upper cover, various parts are installed in base, by will the seal parts in base be arranged on coordinating of upper cover, upper cover and base adopt screw to be connected, and no matter the mode that screw connects is all a thing wasted time and energy when installation and removal, and solve the problem the application number shell structure that is a kind of breaker of plastic casing disclosed in the Chinese patent of 201420633712.2 by be arranged on rotation grab on housing end plug turn in groove that housing base is offered realize both fixing, although this kind of mode instead of conventional screw and connects, but it is operationally same inconvenient, screwdriver is needed to rotate word bolt or the cross screw bolt rotated on grab, if operative employee is not with the hand-operated tools such as screwdriver just cannot dismantle, and owing to removing and installing in process for a long time, can exist and rotate grab and to rotate situation, cause the situation that housing end plug and housing base are surprisingly thrown off.
Utility model content
For the deficiency that prior art exists, it is convenient that the purpose of this utility model is to provide a kind of installing/dismounting, fixing plastic case breaker casing firm again.
For achieving the above object, the utility model provides following technical scheme: a kind of plastic case breaker casing, comprise base and the upper cover in mating connection with base, described upper cover is connected by fixture with base, described upper cover offers the strip hole worn for fixture, described base is provided with the storage tank holding fixture part, and described fixture comprises and has and elastically-deformable grab can occur, and offers the groove for grab clamping in storage tank.
As preferably, described strip hole offers a breach, and this fixture is vertically extended with a shifting block, and described shifting block to be placed in breach and can be connected on the bottom surface of breach.
As preferably, described shifting block is provided with anti-skidding projection towards the one side of breach.
As preferably, described fixture comprises fixed part and support portion, and described fixed part comprises above-mentioned grab, and fixed part is placed in the storage tank of base, and described support portion comprises above-mentioned shifting block, and support portion is placed in the strip hole of upper cover.
As preferably, described grab is provided with two and mirror image is arranged.
As preferably, described fixed part also comprises the boss for limit hook deflection, and described boss is located between the grab that two mirror images arrange.
As preferably, described fixture is at least provided with two.
Compared with prior art, the utility model has the advantage of: in mode the most efficiently, the upper cover of circuit breaker and base are fixed, in the strip hole that fixture only need be inserted into upper cover by operation and with the groove phase clamping of base storage tank, grab on fixture can produce elastic deformation and curve inwardly when entering into storage tank, until grab and groove fasten, fixture is extracted by shifting block during dismounting, grab is thrown off groove and is realized being separated of upper cover and base, and the cost that fixture can change manufacture is low.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of plastic case breaker casing;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the schematic diagram after fixture is fixed;
Fig. 4 is the structural representation of fixture.
Accompanying drawing illustrates: 10, upper cover; 11, strip hole; 12, breach; 20, base; 21, storage tank; 22, groove; 30, fixture; 31, support portion; 311, shifting block; 312, anti-skidding projection; 32, fixed part; 321, grab; 322, boss; 323, the first bearing surface; 324, the second bearing surface.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate protection ranges of the present utility model.
See Fig. 1, this breaker of plastic casing comprises upper cover 10 and base 20, and upper cover 10 and base 20 are made of plastics and play insulation effect, and upper cover 10 and base 20 are fixed by fixture 30, fixture 30 is at least provided with 2, adopts 4 fixtures 30 upper cover 10 and base 20 to be fixed in the present embodiment.
Composition graphs 2 to Fig. 4, strip hole 11 is offered in the edge of upper cover 10, the opening part of strip hole 11 is provided with a breach 12, the position offering strip hole 11 in base correspondence offers storage tank 21, the sidewall of storage tank 21 is provided with groove 22, when fixture 30 uses, be inserted in the storage tank 21 on base 20 through the strip hole 11 on upper cover 10, and fixture 30 comprises support portion 31 and fixed part 32, support portion 31 is that the strip hole 11 on elongated rectangular shape block and upper cover 10 plugs, fixed part 32 comprises two grabs 321 that mirror image is arranged, a boss 322 is provided with between two grabs 321, boss 322 is mainly used in avoiding grab 321 to be out of shape excessive generation crack conditions, grab 321 is set to the second bearing surface 324 towards boss 322 one side, and boss 322 is provided with the first bearing surface 323 towards grab 321, not hard to imagine when grab 321 phase boss 322 bending the second bearing surface 324 now grab 321 that can contact with the first bearing surface 323 reach maximum deformation quantity, and boss 322 also improves the intensity of whole fixed part 32.
Support portion 32 is provided with vertically extending shifting block 311, after fixture is inserted into housing, shifting block 311 is first as position-limiting action, be connected on the breach 12 on upper cover 10, and the convenient taking-up fixture 30 when dismantling, and shifting block 311 is provided with anti-skidding protruding 312 towards the one side of breach 12, the friction increasing staff and shifting block 311 is more convenient for dismantling.
Concrete stationary housing mode is: inserted by the strip hole 11 from upper cover 10 of fixture 30, on fixed part 32, two grabs 321 draw in internal strain but have the trend of reset under strip hole 11 with the sidewall extrusion of storage tank 21, until fixed part 32 times groove 22 places to storage tank 21, grab 321 reset of card is in groove 22, and now shifting block 311 is also just connected on the breach 12 on strip hole 11; Pull shifting block 311 during dismounting, grab 321 inward collapsible under the extruding of groove 21 upper wall, throw off the engaging with groove 21, extract the dismounting that fixture 30 completes upper cover 10 and base 20, extremely convenient in mode of operation.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a plastic case breaker casing, comprise base and the upper cover in mating connection with base, it is characterized in that, described upper cover is connected by fixture with base, described upper cover offers the strip hole worn for fixture, described base is provided with the storage tank holding fixture part, and described fixture comprises and has and elastically-deformable grab can occur, and offers the groove for grab clamping in storage tank.
2. a kind of plastic case breaker casing according to claim 1, is characterized in that, described strip hole offers a breach, and this fixture is vertically extended with a shifting block, and described shifting block is placed in breach and also can be connected on the bottom surface of breach.
3. a kind of plastic case breaker casing according to claim 2, is characterized in that, described shifting block is provided with anti-skidding projection towards the one side of breach.
4. a kind of plastic case breaker casing according to claim 2, it is characterized in that, described fixture comprises fixed part and support portion, described fixed part comprises above-mentioned grab, and fixed part is placed in the storage tank of base, described support portion comprises above-mentioned shifting block, and support portion is placed in the strip hole of upper cover.
5. a kind of plastic case breaker casing according to claim 4, is characterized in that, described grab is provided with two and mirror image is arranged.
6. a kind of plastic case breaker casing according to claim 5, is characterized in that, described fixed part also comprises the boss for limit hook deflection, and described boss is located between the grab of two mirror images settings.
7. a kind of plastic case breaker casing according to claim 1, is characterized in that, described fixture is at least provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814602.0U CN205050785U (en) | 2015-10-20 | 2015-10-20 | Moulded case circuit breaker casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814602.0U CN205050785U (en) | 2015-10-20 | 2015-10-20 | Moulded case circuit breaker casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050785U true CN205050785U (en) | 2016-02-24 |
Family
ID=55344336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520814602.0U Expired - Fee Related CN205050785U (en) | 2015-10-20 | 2015-10-20 | Moulded case circuit breaker casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205050785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449058A (en) * | 2018-12-17 | 2019-03-08 | 嘉兴市加控电气设备制造有限公司 | A kind of case for circuit breaker for preventing to dismount privately |
| CN109637902A (en) * | 2018-12-17 | 2019-04-16 | 嘉兴市加控电气设备制造有限公司 | A kind of case for circuit breaker |
-
2015
- 2015-10-20 CN CN201520814602.0U patent/CN205050785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449058A (en) * | 2018-12-17 | 2019-03-08 | 嘉兴市加控电气设备制造有限公司 | A kind of case for circuit breaker for preventing to dismount privately |
| CN109637902A (en) * | 2018-12-17 | 2019-04-16 | 嘉兴市加控电气设备制造有限公司 | A kind of case for circuit breaker |
| CN109449058B (en) * | 2018-12-17 | 2024-01-23 | 嘉兴市加控电气设备制造有限公司 | Breaker shell capable of preventing private disassembly and assembly |
| CN109637902B (en) * | 2018-12-17 | 2024-02-23 | 嘉兴市加控电气设备制造有限公司 | Circuit breaker shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20161020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |