CN205335190U - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN205335190U CN205335190U CN201521068558.XU CN201521068558U CN205335190U CN 205335190 U CN205335190 U CN 205335190U CN 201521068558 U CN201521068558 U CN 201521068558U CN 205335190 U CN205335190 U CN 205335190U
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- pedestal
- dovetail
- dovetail groove
- wiring board
- counterbore
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Abstract
The utility model provides a circuit breaker, which comprises a base and a cover plate, still including setting up the contact system in the base, the dropout system, operating device and circuit board module, still including the circuit board housing that is used for protecting base interior lines way matrix piece, be equipped with the cavity that is used for holding circuit board module in the circuit board housing, the outside of circuit board housing lateral wall is equipped with convex structure's forked tail muscle, the inboard of the lateral wall of base is equipped with the dovetail with forked tail muscle matched with groove structure, cooperate to come and fix the inboard at lateral wall of the base with circuit board housing inscription through inserting the forked tail muscle dovetail, therefore, can effectually protect the circuit board module, can also realize simultaneously the electromagnetic shield protection to the circuit board module, additionally, still make its assembly structure and assembly step be convenient for optimize, make things convenient for the assembly of circuit board housing, additionally, simplifying processing still has, loading and unloading convenience and reduction in production cost's characteristics.
Description
Technical field
This utility model relates to Low Voltage Electrical Apparatus, is specifically related to a kind of chopper。
Background technology
Chopper is the important component part of electrical equipment industry, and has been obtained for being widely applied。When circuit is working properly, chopper can pass through to close or disconnect the circuit of supply electric energy, reaches the functions such as power failure, power supply and change-over circuit。When overload, decompression, the fault such as under-voltage or short-circuit occurs in circuit, chopper again can automatically by circuitry cuts, it is to avoid jeopardize the safety of staff and the properly functioning of equipment because of fault。Existing chopper domestic demand is arranged to the case of protection circuit plate, provides electromagnetic shielding protection for wiring board, but the assembling of existing case is wasted time and energy, cause that the manufacturing process of chopper is loaded down with trivial details and manufacturing cost is higher。Additionally, in the chopper that patch panel pedestal and rear patch panel pedestal share, may be used for before plate and the needs of wiring after plate for meeting pedestal simultaneously, generally add seal at the terminals of pedestal, but assembly process is relatively complicated, and cost of manufacture is higher。
Summary of the invention
The purpose of this utility model is in that to overcome the defect of prior art, it is provided that the chopper that a kind of simple in construction, reliability are high, convenient for assembly。
For achieving the above object, this utility model adopts the technical scheme that
A kind of chopper, including pedestal 1 and cover plate, also include the contact system being arranged in pedestal 1, tripping system, operating mechanism and wiring board module, also include the wiring board case 2 for protecting circuit plate module in pedestal 1, the cavity 22 for housing wiring board module it is provided with in wiring board case 2, the outside of wiring board case 2 sidewall is provided with the dovetail muscle 21 of boss structure, the inner side of the sidewall of pedestal 1 is provided with the dovetail groove 11 of the groove structure matched with dovetail muscle 21, connect, by wiring board case 2, the inner side being fixed on pedestal 1 sidewall by dovetail muscle 21 being inserted into dovetail groove 11 cooperation。
Optionally, described dovetail groove 11 and dovetail muscle 21 cross sectional shape in the horizontal direction of pedestal 1 base is trapezium structure。
Optionally, dovetail groove 11 opening on described pedestal 1 is towards horizontal direction, and dovetail groove 11 is opening wide setting near pedestal 1 with cover plate joint face side, in order to be inserted into dovetail groove 11 from this side by dovetail muscle 21；The side wall and pressure of cover plate closes dovetail groove 11 opening on the sidewall of pedestal 1。
Optionally, it is set up in parallel multiple dovetail muscle 21 in the outside of the described same sidewall of wiring board case 2, is provided with, at the pedestal 1 inside sidewalls upper limb of chopper, the dovetail groove 11 matched with dovetail muscle 21 that quantity is identical simultaneously。
Optionally, being set up in parallel multiple dovetail muscle 21 for adjusting wiring board case 2 installation site in the outside of the described same sidewall of wiring board case 2, pedestal 1 inside sidewalls is provided with a dovetail groove 11 coordinated with multiple dovetail muscle 21。
Optionally, described wiring board case 2 is square structure, and one side is outwardly open arranges the described cavity 22 of formation。
Optionally, certain distance is left between described dovetail groove 11 and pedestal 1 base plate；Described dovetail muscle 21 is integrated machine-shaping with described wiring board case 2。
Optionally, when described dovetail groove 11 and dovetail muscle 21 match, described wiring board case 2 is provided with the outside of the sidewall of dovetail groove 11 and couples with pedestal 1 inside sidewalls formation face。
Optionally, lower edge inside the upper limb of pedestal 1 inside sidewalls and cover sidewall of chopper is symmetrical arranged interconnective first dovetail groove in notch place and the second dovetail groove, in groove when the shape of dovetail muscle 21 connects with the first dovetail groove and the second dovetail groove, space global shape is identical, and coordinates with the first dovetail groove and the second dovetail groove simultaneously。
Optionally, first counterbore 31 is set in the front of the terminals of pedestal 1, second counterbore 32 of annular is set in the bottom surface of the terminals of pedestal 1, between the first counterbore 31 and the second counterbore 32, wherein form the boss 3a of hollow, first counterbore 31 is positioned on boss 3a, when chopper is for wiring before plate, terminal screw is placed in the first counterbore 31 and carries out electric insulation；When chopper is for wiring after plate, the boss 3a terminal screw that comes off is made to be placed in the second counterbore 32 and carry out electric insulation by External Force Acting。
Chopper of the present utility model, by arranging wiring board case 2 in chopper, therefore can effectively wiring board module be protected, the electromagnetic shielding to wiring board module can also be realized to protect simultaneously, in addition, by case 2 being fixed on pedestal 1 sidewall, make it assemble structure and installation step is easy to optimize, insert dovetail groove 11 by dovetail muscle 21 and fix wiring board case 2, facilitate the assembling of wiring board case 2, and the quantity of the screw hole arranged on pedestal 1 base plate can be reduced, the cost that chopper produces can be also reduced while improving pedestal 1 mechanical strength, there is Simplified flowsheet, feature easy to loading and unloading。
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of this utility model pedestal and wiring board case；
Fig. 2 is the schematic perspective view of this utility model pedestal；
Fig. 3 is the structural representation of this utility model wiring board case；
Fig. 4 is another schematic perspective view of this utility model pedestal；
Fig. 5 is the rear isometric view of this utility model pedestal；
Fig. 6 is the sectional view of this utility model pedestal。
Detailed description of the invention
Below in conjunction with the embodiment that accompanying drawing 1 to 6 provides, further illustrate the detailed description of the invention of chopper of the present utility model。Chopper of the present utility model is not limited to the following description。
A kind of chopper, including pedestal 1 and cover plate, cover plate is arranged on the housing forming chopper on pedestal 1；Also include the contact system, tripping system, operating mechanism, termination and the wiring board module that are arranged in pedestal 1, contact system is connected with operating mechanism, the operating mechanism moving contact with movable contact system swings and static contact the is contacting and separating Guan Bi and disjunction that realize circuit, tripping system is connected between contact system and termination for the injury avoiding fault to cause。
As Figure 1-3; the wiring board case 2 that a modularity as wiring board protects the rectangular structure of structure and electromagnetic armouring structure it is provided with in pedestal 1; the cavity 22 of wiring board module for housing chopper it is provided with in it; chopper of the present utility model is arranged on around wiring board module by wiring board case 2; can avoid when installing or debug, wiring board module being caused damage; can also realizing wiring board module is carried out electromagnetic shielding protection, the service behaviour making chopper is more stable simultaneously。The outside of wiring board case 2 sidewall is provided with the dovetail muscle 21 of boss structure, being provided with dovetail groove 11 that is identical with dovetail muscle 21 shape and that cooperate in pedestal 1 inside sidewalls, connecing, by wiring board case 2, the inner side being fixed on pedestal 1 sidewall by dovetail muscle 21 being inserted into dovetail groove 11 cooperation。Chopper of the present utility model is by being fixed on pedestal 1 sidewall by case 2, make it assemble structure and installation step is easy to optimize, insert dovetail groove 11 by dovetail muscle 21 and fix wiring board case 2, facilitate the assembling of wiring board case 2, and the quantity of the screw hole arranged on pedestal 1 base plate can be reduced, it is possible to while improving pedestal 1 mechanical strength, also reduce the cost that chopper produces。
Concrete, the notch of dovetail groove 11 is towards horizontal direction, and wherein dovetail groove 11 is opening wide setting near the side of pedestal 1 sidewall upper limb, in order to dovetail muscle 21 pushes from this side dovetail groove 11, and closes this side by being arranged on the sidewall of pedestal 1 upper cover plate。After dovetail muscle 21 is installed in dovetail groove 11, it is fixed on connecing in wiring board case 2 in pedestal 1 by closely cooperating of coupling of face between dovetail muscle 21 with dovetail groove 11, and by wiring board module cage in the cavity 22 of wiring board case 2。When specifically assembling, dovetail muscle 21 is directed at dovetail groove 11, wiring board module that the cavity 22 of circuit report case 2 is directed in pedestal 1, by wiring board case 2 from top to bottom be pushed in pedestal 1, make dovetail muscle 21 be inserted in dovetail groove 11 to cooperate, wiring board case 2 is enclosed within wiring board module surrounding simultaneously。Certainly, by the plate case of dovetail groove 11 online design road, dovetail muscle 21 is arranged on pedestal 1 sidewall and belongs to the scheme that the present embodiment is equivalent, it is also possible to reach identical purpose。
Preferably, in the present embodiment, dovetail muscle 21 and dovetail groove 11 cross sectional shape in the horizontal direction of pedestal 1 base plate all adopts isosceles trapezoidal structure, dovetail muscle 21 and dovetail groove 11 is made to have the advantage that processing is more convenient and required precision is low, additionally can make the stress of dovetail muscle 21 and dovetail groove 11 evenly, work more reliable and the life-span is higher。When implementing, the trapezoidal of other or class trapezium structure can also be adopted, for instance cross-shaped configuration as cross sectional shape in the horizontal direction of pedestal 1 base plate of other embodiments of the present utility model, dovetail muscle 21 and dovetail groove 11, or such as T-type structure, it is not specifically limited here。
In the present embodiment, on wiring board case 2 side-wall outer side, the quantity of dovetail muscle 21 can be multiple, such as a side-wall outer side of wiring board case 2 arranged side by side along pedestal 1 floor level direction two dovetail muscle 21 are set, the dovetail groove 11 identical with the quantity that dovetail muscle 21 matches is set at the upper inside edges of pedestal 1 sidewall simultaneously。Additionally, as another specific embodiment, multiple one to one dovetail groove 11 non-with dovetail muscle 21 can also be pre-seted at the upper inside edges of pedestal 1 sidewall, pedestal 1 inside sidewalls is provided with a dovetail groove 11 coordinated with multiple dovetail muscle 21, and wiring board case 2 therefore can be selected according to specific needs to be arranged in which dovetail groove 11 to adjust the installation site of wiring board case 2。Here the quantity for dovetail muscle 21 and dovetail groove 11 is not specifically limited。
As Figure 1-3, described wiring board case 2 is square structure, for instance square or cuboid, and one side is outwardly open to be disposed within described in formation for housing the cavity 22 of wiring board module。Leave certain distance between described dovetail groove 11 and pedestal 1 base plate, and dovetail muscle 21 is integrated machine-shaping with described wiring board case 2, therefore can ensure that the inner side being fixed on pedestal 1 sidewall that wiring board case 2 is more firm, it is provided that protected effect more preferably。When described dovetail groove 11 and dovetail muscle 21 match, described wiring board case 2 is provided with the side-wall outer side of dovetail groove 11 and couples with pedestal 1 inside sidewalls formation face, is connected on the inner side of pedestal 1 sidewall in wiring board case 2 therefore can be made more stable。
Additionally, as another specific embodiment (not shown), lower edge inside the upper limb of pedestal 1 inside sidewalls and the cover sidewall of chopper of chopper is respectively symmetrically and arranges the first dovetail groove and the second dovetail groove, when cover plate covers on pedestal 1, the notch place of the first dovetail groove and the second dovetail groove is connected with each other。During real work, in groove when the shape of dovetail muscle 21 connects with the first dovetail groove and the second dovetail groove, space global shape is identical, and coordinate with the first dovetail groove and the second dovetail groove respectively simultaneously, being possible not only to improve the stability that wiring board case 2 is fixing in pedestal 1 by the setting of the first dovetail groove and the second dovetail groove, the dovetail muscle 21 on wiring board case 2 may also operate as the effect of guiding and pre-determined bit when installing cover plate。Here the quantity for dovetail muscle 21 and dovetail groove 11 is not specifically limited。
As Figure 4-Figure 6, wiring assembling structure on the pedestal of this utility model chopper, first counterbore 31 is set in the front of the terminals of pedestal 1, second counterbore 32 of annular is set in the bottom surface of the terminals of pedestal 1, between the first counterbore 31 and the second counterbore 32, wherein form the boss 3a of hollow, first counterbore 31 is positioned on boss 3a, and when chopper is for wiring before plate, terminal screw is placed in the first counterbore 31 and carries out electric insulation；When chopper is for wiring after plate, makes boss 3a come off by External Force Acting, and carry out electric insulation by being placed in by terminal screw in the second counterbore 32。Setting by first counterbore the 31, second counterbore 32 and boss 3a, make chopper of the present utility model can meet before plate the demand of wiring after wiring and plate, additionally, also have reduction cost, advantage convenient for assembly simultaneously, getting the raw materials ready of stock is reduced it addition, additionally aid。
Concrete, the structure that described first counterbore 31 adopts axial cross section to be circle, second counterbore 32 bottom surface being arranged on pedestal 1 corresponding thereto of annular is also centered around the outside of the first counterbore 31 circumferential wall, meanwhile, between the first counterbore 31 and the second counterbore 32, form the boss 3a for accommodating and insulated terminal screw。Wherein, the second counterbore 32 horizontal cross-section is annular, is " Qian " font at axial cross section, and the height of boss 3a is less than the height in the second counterbore 32 hole, it is possible to avoid installing or in debugging process owing to misoperation makes boss 3a come off。
As Figure 4-Figure 6, front at the terminals of pedestal 1, the 4th counterbore 34 being easy to the boss 3a annular come off it is additionally provided with between first counterbore 31 and the second counterbore 32, setting by the 4th counterbore 34, can while ensureing connecting portion 3b structural strength, avoid pulling open other organizational structure face because of the first coming off of counterbore 31, and when the first counterbore 31 can be avoided to come off, produce burr and Pedicellus et Pericarpium Trapae in connecting portion 3b position。Pedestal 1 also includes the 3rd circular counterbore 33 being arranged on terminals front, and is arranged in the 3rd counterbore 33 by described first counterbore 31, forms step surface and be used for housing terminal nut between the 3rd counterbore 33 and the first counterbore 31；4th counterbore 34 is arranged in the 3rd counterbore, the root of step surface between the 3rd counterbore 33 and the first counterbore 31。Setting by the 3rd counterbore 33, connecting portion 3b is formed between 3rd counterbore 33 and described second counterbore 32, connecting portion 3b between boss 3a and pedestal 1 therefore, when boss 3a can come off along the position of connecting portion 3b after external force is knocked, additionally, by the setting of connecting portion 3b, convenient minimum external force required when coming off for control boss 3a。
It should be noted that, for convenience of machine-shaping in the present embodiment, therefore above-mentioned counterbore is the circle being coaxially disposed, but when implementing, needs according to real work, above-mentioned counterbore can also select other structure and set-up mode, for instance described 3rd counterbore 33 adopts axial cross section to be the regular hexagon shape matched with terminal nut, does not do concrete restriction here。
Concrete, in conjunction with Fig. 6, described first counterbore 31 is perpendicular to axial cross section for circle, and it is annular that described second counterbore 32 is perpendicular to axial cross section, and described first counterbore 31 and the second counterbore 32 are coaxially disposed；Described 3rd counterbore 33 is perpendicular to axial cross section for circle, and is coaxially disposed with described first counterbore 31；It is annular that described 4th counterbore 34 is perpendicular to axial cross section, and is coaxially disposed with described 3rd counterbore 33。The internal diameter R of the second counterbore 32 outer wall described in the present embodiment2Internal diameter r more than the 3rd counterbore 333, the second counterbore 32 inwall external diameter r2Internal diameter r less than the 3rd counterbore 333, therefore can ensure that between the second counterbore 32 and the 3rd counterbore 33, form the connecting portion 3b with Rational structure, it addition, the internal diameter R of described 4th counterbore 34 outer wall4Internal diameter r equal to the first counterbore 311, the 4th counterbore 34 inwall external diameter r4Internal diameter r more than the first counterbore1, therefore, the 4th counterbore 34 can play better protected effect when the first counterbore 31 comes off。
Preferably, the wall thickness of the boss 3b in the present embodiment is 0.75mm-1.00mm, therefore can reduce this utility model chopper weight at the same time it can also be ensured that the insulating properties of boss 3a。The axial cross section of described boss 3a is isosceles trapezoid, being just gradually reduced towards reverse side orient diameter by the terminals of pedestal 1, convenient by boss 3a abate；The axial cross section of described first counterbore 31 is isosceles trapezoid, being just gradually reduced towards reverse side orient diameter by the terminals of pedestal 1。
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations。For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to。
Claims (10)
1. a chopper, including pedestal (1) and cover plate, also include the contact system being arranged in pedestal (1), tripping system, operating mechanism and wiring board module, it is characterized in that: also include the wiring board case (2) for protecting the interior circuit plate module of pedestal (1), the cavity (22) for housing wiring board module it is provided with in wiring board case (2), the outside of wiring board case (2) sidewall is provided with the dovetail muscle (21) of boss structure, the inner side of the sidewall of pedestal (1) is provided with the dovetail groove (11) of the groove structure matched with dovetail muscle (21), connect, by wiring board case (2), the inner side being fixed on pedestal (1) sidewall by dovetail muscle (21) being inserted into dovetail groove (11) cooperation。
2. chopper according to claim 1, it is characterised in that: described dovetail groove (11) and dovetail muscle (21) cross sectional shape in the horizontal direction of pedestal (1) base is trapezium structure。
3. chopper according to claim 1, it is characterized in that: dovetail groove (11) opening on described pedestal (1) is towards horizontal direction, dovetail groove (11) is opening wide setting near pedestal (1) with cover plate joint face side, in order to be inserted into dovetail groove (11) from this side by dovetail muscle (21)；The side wall and pressure of cover plate closes dovetail groove (11) opening on the sidewall of pedestal (1)。
4. chopper according to claim 1, it is characterized in that: be set up in parallel multiple dovetail muscle (21) in the outside of the same sidewall of described wiring board case (2), be provided with, at pedestal (1) the inside sidewalls upper limb of chopper, the dovetail groove (11) matched with dovetail muscle (21) that quantity is identical simultaneously。
5. chopper according to claim 1, it is characterized in that: be set up in parallel multiple dovetail muscle (21) for adjusting wiring board case (2) installation site in the outside of the same sidewall of described wiring board case (2), pedestal (1) inside sidewalls is provided with a dovetail groove (11) coordinated with multiple dovetail muscle (21)。
6. chopper according to claim 1, it is characterised in that: described wiring board case (2) is square structure, and one side is outwardly open arranges the described cavity of formation (22)。
7. chopper according to claim 1, it is characterised in that: leave certain distance between described dovetail groove (11) and pedestal (1) base plate；Described dovetail muscle (21) and described wiring board case (2) are integrated machine-shaping。
8. chopper according to claim 1, it is characterized in that: when described dovetail groove (11) and dovetail muscle (21) match, described wiring board case (2) is provided with the outside of the sidewall of dovetail groove (11) and couples with pedestal (1) inside sidewalls formation face。
9. chopper according to claim 1, it is characterized in that: the lower edge inside the upper limb of pedestal (1) inside sidewalls and cover sidewall of chopper is symmetrical arranged interconnective first dovetail groove in notch place and the second dovetail groove, in groove when the shape of dovetail muscle (21) connects with the first dovetail groove and the second dovetail groove, space global shape is identical, and coordinates with the first dovetail groove and the second dovetail groove simultaneously。
10. chopper according to claim 1, it is characterized in that: in the front of the terminals of pedestal (1), the first counterbore (31) is set, second counterbore (32) of annular is set in the bottom surface of the terminals of pedestal (1), between the first counterbore (31) and the second counterbore (32), wherein form the boss (3a) of hollow, first counterbore (31) is positioned on boss (3a), when chopper is for wiring before plate, terminal screw is placed in the first counterbore (31) and carries out electric insulation；When chopper is for wiring after plate, boss (3a) terminal screw that comes off is made to be placed in the second counterbore (32) and carry out electric insulation by External Force Acting。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068558.XU CN205335190U (en) | 2015-12-21 | 2015-12-21 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068558.XU CN205335190U (en) | 2015-12-21 | 2015-12-21 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205335190U true CN205335190U (en) | 2016-06-22 |
Family
ID=56208280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521068558.XU Active CN205335190U (en) | 2015-12-21 | 2015-12-21 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205335190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107640A1 (en) * | 2015-12-21 | 2017-06-29 | 浙江正泰电器股份有限公司 | Breaker |
-
2015
- 2015-12-21 CN CN201521068558.XU patent/CN205335190U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107640A1 (en) * | 2015-12-21 | 2017-06-29 | 浙江正泰电器股份有限公司 | Breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: Circuit breaker Granted publication date: 20160622 License type: Common License Record date: 20201021 |