CN201611639U - Multi-pole rotation double-break molded case circuit breaker - Google Patents
Multi-pole rotation double-break molded case circuit breaker Download PDFInfo
- Publication number
- CN201611639U CN201611639U CN2010201684231U CN201020168423U CN201611639U CN 201611639 U CN201611639 U CN 201611639U CN 2010201684231 U CN2010201684231 U CN 2010201684231U CN 201020168423 U CN201020168423 U CN 201020168423U CN 201611639 U CN201611639 U CN 201611639U
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- hole
- connecting rod
- transmission shaft
- bearing
- circuit breaker
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Abstract
A multi-pole rotation double-break molded case circuit breaker comprises an operation mechanism, a plurality of unit boxes and a connection mechanism. The circuit breaker is provided with a first transmission shaft and a second transmission shaft. The connection mechanism comprises a connecting rod, a bearing and a supporting shaft. The first transmission shaft penetrates all first connection holes and penetrates the first holes of all rotors, and is fixed with a lower connecting rod of the operation mechanism. The second transmission shaft penetrates the second connection holes of all connecting rods and penetrates the second holes of all rotors. In the multi-pole rotation double-break molded case circuit breaker, two ends of the supporting shaft of the connection mechanism are respectively provided with a supporting point for forming a freely supported beam for preventing the deformation. The connection between each connecting rod and the bearing, and the connection part between the bearing and the supporting shaft are interference fit. The multi-pole rotation double-break molded case circuit breaker obtains the following advantages: reduced fit clearance, accurate positioning, reduced abrasion force in the motion of connecting rod, prolonged service life of circuit breaker. The transmission shaft is provided with a supporting point between a random unit box and an adjacent unit box for preventing the deformation of the transmission shaft and ensuring the reliable contact of the movable and static contacts in the unit boxes which are far from the operation mechanism.
Description
Technical field:
The utility model relates to electricity field, relates in particular to breaker of plastic casing, particularly a kind of multipole rotating dual-breakpoint breaker of plastic casing.
Background technology:
In the prior art, in the multipolar low-voltage rotating dual-breakpoint breaker of plastic casing, bindiny mechanism is being hinged on the circuit breaker operation mechanism side plate between the single pole units box and by brace, be used to the motive contact module that connects circuit breaker operation mechanism and drive a plurality of single pole units rotate and finish close, sub-switching operation.Chinese invention patent Granted publication CN1077818A discloses a kind of multipole circuit breaker with single pole units.There is following shortcoming in this version, at first, in a plurality of single pole units of circuit breaker, be provided with the circular cavity volume that is used to hold rotor, and two breakpoint symmetries of rotating dual-breakpoint be distributed in the cavity volume both sides, for the identical and contact reliability of contact pressure that guarantees two breakpoints, need rotor accurately to be positioned at the center of cavity volume, and said structure is hinged on the operating mechanism side plate by brace, it promptly is pin joint with the centre of rotor, and the operating mechanism side plate is erected on the single pole units box, location deviation between the circular cavity volume center of pin joint and single pole units box can not guarantee effectively that rotor is positioned at the center of cavity volume; Secondly, bindiny mechanism is riveted on the side plate by minor axis, is cantilever beam structure, and have relatively high expectations the mechanical endurance of circuit breaker, closes for a long time, sub-switching operation causes the minor axis deflection deformation easily and cause mechanical breakdown.And in the prior art, the connecting rod in the bindiny mechanism directly is enclosed within on the axle, and connecting rod rotates on axle, because in whole circuit breaker, this connecting rod drives the moving contact divide-shut brake, is crucial force-summing element, connecting rod directly is enclosed within on the axle, the axis hole fit clearance is big, and rotation friction is big, serious wear, the connecting rod center can be offset, directly have influence on the position of moving contact, the overtravel of product and contact pressure can reduce simultaneously, and then influence the useful life of whole product.
Summary of the invention:
The purpose of this utility model is to provide a kind of multipole rotating dual-breakpoint breaker of plastic casing, and described this multipole rotating dual-breakpoint breaker of plastic casing will solve and can not guarantee effectively in the multipole rotating dual-breakpoint breaker of plastic casing in the prior art that moving contact contacts with fixed contact and the technical problem that disconnects.
This multipole rotating dual-breakpoint breaker of plastic casing of the present utility model is made of the unit box of operating mechanism and two above numbers, described operating mechanism is arranged in the housing, be provided with a lower link in the operating mechanism, the unit box of described two above numbers and described housing are set up in parallel, between housing and the adjacent unit box, be provided with bindiny mechanism between two adjacent arbitrarily unit boxes, be provided with contact system in any one unit box, be provided with motive contact module in any one described contact system, any one described motive contact module constitutes by rotor and the moving contact that is embedded in the described rotor, it is characterized in that: be provided with one first hole and one second hole on any one described rotor, any one described bindiny mechanism is by connecting rod, bearing and back shaft constitute, described connecting rod is made of plate, the two ends of connecting rod are provided with one first connecting hole and one second connecting hole, the centre of connecting rod is provided with one the 3rd connecting hole, on the outer retainer of the described bearing that connecting rod is set in by the 3rd connecting hole, connecting rod and bearing interference fit, described back shaft passes the interior retainer of bearing, back shaft and bearing interference fit, the two ends of back shaft are separately positioned in the hole of sidewall of adjacent housing or unit box, in first connecting hole of whole connecting rods, be equipped with one first power transmission shaft, described first power transmission shaft passes first hole of whole rotors, first power transmission shaft is fixedlyed connected with described lower link, at second connecting hole of whole connecting rods with all be equipped with one second power transmission shaft in second hole of rotors.
Further, described bearing is a rolling bearing.
Operation principle of the present utility model is: first power transmission shaft passes first connecting hole in all connecting rods, and passes first hole in all rotors of moving contact system, is connected with the lower link of operating mechanism simultaneously; Second power transmission shaft passes all connecting rod second connecting holes, and pass second hole of all rotors of moving contact system, move through lower link, first power transmission shaft and second power transmission shaft of operating mechanism are delivered to contact system in each unit box, realize deciliter action of moving contact and fixed contact.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model all is supported on the back shaft two ends of bindiny mechanism on the sidewall of adjacent housings in multipole rotating dual-breakpoint breaker of plastic casing, forms simple beam structure, can avoid its distortion; Be connected by interference fit between connecting rod and bearing, bearing and the back shaft simultaneously, reduced fit clearance, accurate positioning, and the frictional force when having reduced link motion have prolonged circuit breaker useful life; And first power transmission shaft and second power transmission shaft between each unit box, all be provided with the strong point, can prevent that power transmission shaft is out of shape away from the operating mechanism strong point time, guarantee away from dynamic/static contact contact in the unit box of operating mechanism reliable.
Description of drawings:
Fig. 1 is the structural representation of multipole rotating dual-breakpoint breaker of plastic casing of the present utility model.
Fig. 2 is the motive contact module schematic diagram in the multipole rotating dual-breakpoint breaker of plastic casing of the present utility model.
Fig. 3 is the schematic diagram of the drive system in the multipole rotating dual-breakpoint breaker of plastic casing of the present utility model.
Fig. 4 is a schematic diagram that is connected between bindiny mechanism and the unit box in the multipole rotating dual-breakpoint breaker of plastic casing of the present utility model.
Fig. 5 is another schematic diagram that is connected between bindiny mechanism and the unit box in the multipole rotating dual-breakpoint breaker of plastic casing of the present utility model.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, multipole rotating dual-breakpoint breaker of plastic casing of the present utility model, comprise operating mechanism 1 and a plurality of unit box 3, a plurality of unit boxes 3 are arranged side by side, constitute a plurality of utmost points of circuit breaker, be provided with bindiny mechanism 2 between operating mechanism 1 and the adjacent unit box 3, also be provided with bindiny mechanism 2 between the adjacent unit box 3, be provided with contact system in the unit box 3, contact system comprises fixed contact 34, fixed contact 35 and motive contact module 33, motive contact module 33 is made of rotor 36 and two moving contacts 37 that are embedded in the rotor, wherein, in circuit breaker, also be provided with first power transmission shaft 41 and second power transmission shaft 42, rotor 36 is provided with first hole 361 and second hole 362, bindiny mechanism 2 comprises connecting rod 23, bearing 22, back shaft 21, connecting rod 23 is made of a plate, connecting rod 23 two ends are respectively arranged with first connecting hole 231 and second connecting hole 232, be provided with the 3rd connecting hole 233 in the middle of the connecting rod, connecting rod 23 is set in the outer ring of bearing 22 by the 3rd connecting hole 233 interference fit, back shaft 21 passes the inner ring of bearing 22 by interference fit, be riveted in the hole 121 and hole 131 of the side plate 12 of operating mechanism housing and side plate 13 at an end of bindiny mechanism's back shaft 21 of operating mechanism 1 dual-side, the other end of back shaft 21 is installed in the hole 311 and hole 321 of the housing 31 of adjacent unit box and housing 32, back shaft 21 two ends of the bindiny mechanism between adjacent two unit boxes 3 all are contained in the hole 311 of the housing of unit box, in the hole 321, first power transmission shaft 41 passes first connecting hole 231 of all bindiny mechanisms, and pass first hole 361 of all rotors 36, and fixedly connected with the lower link 11 of operating mechanism 1; Second power transmission shaft 42 passes second connecting hole 232 of all connecting rods, and passes second hole 362 of all rotors 36.
Further, bearing 22 is rolling bearings.
Further, epitrochanterian first hole 361 and second hole 361 are positioned on the same diameter of rotor 36.
Claims (2)
1. multipole rotating dual-breakpoint breaker of plastic casing, unit box by operating mechanism and two above numbers constitutes, described operating mechanism is arranged in the housing, be provided with a lower link in the operating mechanism, the unit box of described two above numbers and described housing are set up in parallel, between housing and the adjacent unit box, be provided with bindiny mechanism between two adjacent arbitrarily unit boxes, be provided with contact system in any one unit box, be provided with motive contact module in any one described contact system, any one described motive contact module constitutes by rotor and the moving contact that is embedded in the described rotor, it is characterized in that: be provided with one first hole and one second hole on any one described rotor, any one described bindiny mechanism is by connecting rod, bearing and back shaft constitute, described connecting rod is made of plate, the two ends of connecting rod are provided with one first connecting hole and one second connecting hole, the centre of connecting rod is provided with one the 3rd connecting hole, on the outer retainer of the described bearing that connecting rod is set in by the 3rd connecting hole, connecting rod and bearing interference fit, described back shaft passes the interior retainer of bearing, back shaft and bearing interference fit, the two ends of back shaft are separately positioned in the hole of sidewall of adjacent housing or unit box, in first connecting hole of whole connecting rods, be equipped with one first power transmission shaft, described first power transmission shaft passes first hole of whole rotors, first power transmission shaft is fixedlyed connected with described lower link, at second connecting hole of whole connecting rods with all be equipped with one second power transmission shaft in second hole of rotors.
2. multipole rotating dual-breakpoint breaker of plastic casing as claimed in claim 1, it is characterized in that: described bearing is a rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201684231U CN201611639U (en) | 2010-02-01 | 2010-03-16 | Multi-pole rotation double-break molded case circuit breaker |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103342 | 2010-02-01 | ||
| CN201020104945 | 2010-02-01 | ||
| CN201020104945.5 | 2010-02-01 | ||
| CN201010103342.8 | 2010-02-01 | ||
| CN2010201684231U CN201611639U (en) | 2010-02-01 | 2010-03-16 | Multi-pole rotation double-break molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611639U true CN201611639U (en) | 2010-10-20 |
Family
ID=42962274
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201684231U Expired - Lifetime CN201611639U (en) | 2010-02-01 | 2010-03-16 | Multi-pole rotation double-break molded case circuit breaker |
| CN2010101560093A Pending CN102142340A (en) | 2010-02-01 | 2010-03-16 | Multi-electrode rotary double-breakpoint circuit breaker with plastic shell |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101560093A Pending CN102142340A (en) | 2010-02-01 | 2010-03-16 | Multi-electrode rotary double-breakpoint circuit breaker with plastic shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN201611639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142340A (en) * | 2010-02-01 | 2011-08-03 | 上海良信电器股份有限公司 | Multi-electrode rotary double-breakpoint circuit breaker with plastic shell |
| CN107622887A (en) * | 2016-07-13 | 2018-01-23 | 西门子公司 | For the pole case of electric switch and the electric switch with pole case |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2682531B1 (en) * | 1991-10-15 | 1993-11-26 | Merlin Gerin | MULTIPOLAR CIRCUIT BREAKER WITH SINGLE POLE BLOCKS. |
| CN2845154Y (en) * | 2005-12-07 | 2006-12-06 | 上海电器科学研究所（集团）有限公司 | The link gear of breaker of plastic casing |
| CN201359982Y (en) * | 2009-02-26 | 2009-12-09 | 常熟开关制造有限公司(原常熟开关厂） | Multi-pole low-voltage rotation double-break molded case circuit breaker |
| CN201611639U (en) * | 2010-02-01 | 2010-10-20 | 上海良信电器股份有限公司 | Multi-pole rotation double-break molded case circuit breaker |
-
2010
- 2010-03-16 CN CN2010201684231U patent/CN201611639U/en not_active Expired - Lifetime
- 2010-03-16 CN CN2010101560093A patent/CN102142340A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142340A (en) * | 2010-02-01 | 2011-08-03 | 上海良信电器股份有限公司 | Multi-electrode rotary double-breakpoint circuit breaker with plastic shell |
| CN107622887A (en) * | 2016-07-13 | 2018-01-23 | 西门子公司 | For the pole case of electric switch and the electric switch with pole case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102142340A (en) | 2011-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |
|
| CX01 | Expiry of patent term |