CN203826317U - Rated-current adjustable breaker - Google Patents
Rated-current adjustable breaker Download PDFInfo
- Publication number
- CN203826317U CN203826317U CN201420194140.2U CN201420194140U CN203826317U CN 203826317 U CN203826317 U CN 203826317U CN 201420194140 U CN201420194140 U CN 201420194140U CN 203826317 U CN203826317 U CN 203826317U
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- CN
- China
- Prior art keywords
- dwang
- sliding panel
- screw
- knob
- bimetal leaf
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- 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
A rated-current adjustable breaker comprises a base, a heating element, a bimetallic strip, a wiring board, a tripping plate, a magnet yoke, a knob, a rotary rod and a trip free mechanism; one end of the bimetallic strip is welded and fixed to the wiring board; one end, fixed to the wiring board, of the bimetallic strip is provided with a first adjustable screw, and the other end of the bimetallic strip is provided with a second adjustable screw; the tripping plate is provided with a slide groove, and a sliding plate is arranged in the slide groove in a transverse linear sliding manner; three support feet of the sliding plate are provided with working surfaces corresponding to the second adjusting screw on the bimetallic strip, and the working surface is two step planes; the two step planes are connected via an oblique plane; the sliding plate extends in the opposite direction of the support feet to provide with a U-shaped groove, and one end of the rotary rod is in linkage with the sliding plate via the U-shaped groove; and the other end of the rotary rod is also provided with a U-shaped gap, and the rotary rod is in linkage with the knob via the U-shaped gap. The scheme mainly solves the problem that an overcurrent protection characteristic cannot be effectively controlled in batch production of the rated-current adjustable breaker.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, relates to a kind of rated current adjustable circuit breaker.
Background technology
Existing rated current adjustable circuit breaker generally forms by being assemblied in thermal element on pedestal, bimetal leaf, dropout plate, trip free device, lid etc., and bimetal leaf is provided with adjustment screw; Determine the over-current protective feature of circuit breaker by regulating the screw on bimetal leaf and the distance between dropout plate.
At present, conventional rated current adjustable circuit breaker is general all being assemblied in lid in order to the knob of distance between adjustment screw and dropout plate, and lid is fixed on pedestal.When turn knob, will change distance between bimetal leaf screwing and dropout plate, thereby reach the adjustable function of circuit breaker over-current protective feature.And in actual production, due to single part manufacturing process, can there is error in accessory size, during part links mutually, scale error during again due to assembling exists, and the screw on the bimetal leaf of anticipation adjusting in advance and the distance between dropout plate, can not be effectively controlled.In the time finding that circuit breaker over-current protective feature is not within scope, because screw is arranged on the base interior of circuit breaker, must power-off and the cover of pulling down circuit breaker just can readjust, it is inconvenient to use, and totally unfavorable to producing.
Summary of the invention
For overcoming above-mentioned deficiency of the prior art, the utility model object is to provide a kind of rated current adjustable circuit breaker, its objective is and solves in prior art rated current adjustable circuit breaker in batch production, the problem that over-current protective feature can not be effectively controlled.
For achieving the above object and other relevant objects, the utility model provides a kind of rated current adjustable circuit breaker, comprises pedestal, heater element, bimetal leaf, terminal block, dropout plate, yoke, knob, dwang and free tripping mechanism; One end and the terminal block of described bimetal leaf are welded and fixed, and described terminal block is fixed on pedestal; The fixing one end of described bimetal leaf and terminal block is provided with the first adjustment screw, and its other end is provided with the second adjustment screw; On described dropout plate, offer chute, in described chute, left and right linear slide arranges a sliding panel; Described sliding panel is " E " shape, three legs of described " E " shape sliding panel be provided with bimetal leaf on second adjust working face corresponding to screw, described working face is two step planes; Between described two step planes, connect through an inclined-plane; On described " E " shape sliding panel, extend and be provided with U-shaped groove towards leg rightabout, one end of described dwang, through described U-shaped groove and the interlock of described sliding panel, when dwang rotation, drives sliding panel to move left and right in the chute of dropout plate; The other end of described dwang is also provided with a U-shaped breach, and described dwang is through described U-shaped breach and described knob linkage.
In such scheme, related content is explained as follows:
1,, in such scheme, the middle part of described bimetal leaf is semicircle;
2, in such scheme, described knob is made up of a large cylinder and a small cylinder, and described small cylinder is arranged on described large cylinder below, and both different axle center, and the week of described large cylinder is upwards provided with annular groove structure; Described knob is through the U-shaped breach interlock of described small cylinder and described dwang.This eccentric structure of described knob coordinates the U-shaped breach of dwang, can make the horizontal circular motion of knob finally become moving horizontally of sliding panel.The week of described large cylinder, annular groove structure upwards can make knob be fixed on lid, simple and reliable for structure;
3, in such scheme, the middle part of described dwang is provided with circular hole, and described dwang is positioned in yoke through a screw by this circular hole, and described dwang rotates around described screw.Screw screws the part anaerobic adhesive of yoke and fixes, and prevents screw loosening;
4, in such scheme; described first adjust screw can preset bimetal leaf and dropout plate between distance; described second adjusts screw can adjust the distance between bimetal leaf and dropout plate after lid is fixing with pedestal; thereby adjustment overcurrent protection, the scale error having caused while having got rid of because of assembling.Turn the second adjustment screw, can change the distance between bimetal leaf and sliding panel, and then reach the circuit breaker over-current protective feature value of adjusting;
5,, in such scheme, on described sliding panel, the corresponding second working face of adjusting screw is designed to two step planes; And connect through an inclined-plane between described two step planes; These two step planes and inclined-plane contact with adjustment screw, make the face of differing heights obtain different over-current protective features;
6, in such scheme, one end of described dwang and knob linkage, its other end and the interlock of described sliding panel, this connecting mode, can be by horizontal knob circular motion, become the left and right rectilinear motion of sliding panel, change the middle lead to the hole site of dwang, can increase or reduce the moving range of sliding panel in dropout plate.When sliding panel moves left and right in dropout plate, can change the distance between bimetal leaf and dropout plate, thereby over-current protective feature can effective controlled adjustment;
7,, in such scheme, described knob is to regulate voluntarily the rated current of circuit breaker to use as user;
8, in such scheme, described dropout plate can rotate in free tripping mechanism, and in the time that dropout plate rotates to certain angle, free tripping mechanism is threaded off, rated current adjustable short device separating brake;
9,, in such scheme, described terminal block is fixed on pedestal it by a flexure strip part.One end of bimetal leaf and described terminal block are welded and fixed, and its other end can free bend.
Because technique scheme is used, the advantage that the utility model compared with prior art has is:
1, the two ends of the utility model on bimetal leaf arrange respectively the first adjustment screw and second and adjust screw, and first adjusts screw and second adjusts all can the adjust protective feature of overcurrent of screw.Wherein second adjust still can adjust in without the uncap situation protective feature of overcurrent of screw.Solve in present technology rated current adjustable circuit breaker in process of production, scale error during because of accessory size error and assembling, and the adjust protective feature of circuit breaker overcurrent of uncap repeatedly.Thereby enhance productivity, reduce production costs.And improve breaker reliability;
2, the utility model adopts sliding panel structure, is designed to step plane, and is connected by inclined-plane on sliding panel with the face of the second adjustment screw fit, makes the face of differing heights obtain different over-current protective features.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model bimetal leaf and sliding panel fit structure schematic diagram.
Fig. 3 is the linkage structure schematic diagram of sliding panel for the utility model, rotor plate and knob.
Fig. 4 is the utility model rotor plate structural representation.
Fig. 5 is the utility model knob structure schematic diagram.
Fig. 6 is the utility model sliding panel structural representation.
Fig. 7 is bimetal leaf for the utility model, lug plate and yoke fit structure schematic diagram.
Fig. 8 is the utility model sliding panel and dropout plate assembly structure schematic diagram.
Fig. 9 is the utility model internal structure schematic diagram.
Figure 10 is the utility model theory structure schematic diagram.
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to Fig. 1 to Fig. 3.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., all contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of rated current adjustable circuit breaker, comprises pedestal 1, heater element 2, bimetal leaf 3, terminal block 4, dropout plate 5, yoke 6, knob 7, dwang 8 and free tripping mechanism; One end of described bimetal leaf 3 and terminal block 4 are welded and fixed, and described terminal block 4 is fixed on pedestal 1; The fixing one end of described bimetal leaf 3 and terminal block 4 is provided with the first adjustment screw 9, and its other end is provided with the second adjustment screw 10; On described dropout plate 5, offer chute 11, the interior left and right of described chute 11 linear slide arranges a sliding panel 12; Described sliding panel 12 is " E " shape, three legs 121 of described " E " shape sliding panel 12 be provided with bimetal leaf 3 on second adjust working face corresponding to screw 10, described 8 working faces are two step planes 122; Between described two step planes 122, connect through an inclined-plane 123; On described " E " shape sliding panel 12, extend and be provided with U-shaped groove 124 towards leg 121 rightabouts, link with described sliding panel 12 through described U-shaped groove 124 in one end of described dwang 8, when dwang 8 rotates, drive sliding panel 12 to move left and right in the chute 11 of dropout plate 5; The other end of described dwang 8 is also provided with a U-shaped breach 81, and described dwang 8 links with described knob 7 through described U-shaped breach 81.
The middle part of described bimetal leaf 3 is semicircle.
Described knob 7 is made up of a large cylinder 71 and a small cylinder 72, and described small cylinder 72 is arranged on described large cylinder 71 belows, and both different axle center, is upwards provided with annular groove 73 structures the week of described large cylinder 71; Described knob 7 links through described small cylinder 72 and the U-shaped breach 81 of described dwang 8.This eccentric structure of described knob 7 coordinates the U-shaped breach 81 of dwang 8, can make the horizontal circular motion of knob 7 finally become moving horizontally of sliding panel 12.The week of described large cylinder 71, annular groove 73 structures upwards can make knob 7 be fixed on lid, simple and reliable for structure.
The middle part of described dwang 8 is provided with circular hole 82, and described dwang 8 is positioned in yoke through a screw 13 by this circular hole 82, and described dwang 8 rotates around described screw 13.Screw 13 screws the part anaerobic adhesive of yoke and fixes, and prevents screw loosening.
Described first adjust screw 9 can preset bimetal leaf 3 and dropout plate 5 between distance; described second adjusts screw 10 can adjust the distance between bimetal leaf 3 and dropout plate 5 after lid is fixing with pedestal 1; thereby adjustment overcurrent protection, the scale error having caused while having got rid of because of assembling.Turn the second adjustment screw 10, can change the distance between bimetal leaf 3 and sliding panel 12, and then reach the circuit breaker over-current protective feature value of adjusting.
On described sliding panel 12, the corresponding second working face of adjusting screw 10 is designed to two step planes 122; And connect through an inclined-plane 123 between described two step planes 122; These two step planes 122 and inclined-plane 123 and second are adjusted screw 10 and are contacted, and make the face of differing heights obtain different over-current protective features.
One end of described dwang 8 and knob 7 link, its other end and described sliding panel 12 link, this connecting mode, can be by horizontal knob 7 circular motion, become the left and right rectilinear motion of sliding panel 12, change middle circular hole 82 positions of dwang 8, can increase or reduce the moving range of sliding panel 12 in dropout plate 5.When sliding panel 12 moves left and right in dropout plate 5, can change the distance between bimetal leaf 3 and dropout plate 5, thereby over-current protective feature can effective controlled adjustment.
Described knob 7 is to regulate voluntarily the rated current of circuit breaker to use as user.
Described dropout plate 5 can rotate in free tripping mechanism, and in the time that dropout plate 5 rotates to certain angle, free tripping mechanism is threaded off, rated current adjustable short device separating brake.
Described terminal block 4 is fixed on pedestal 1 it by a flexure strip part.One end of bimetal leaf 2 and described terminal block 4 are welded and fixed, and its other end can free bend.
The two ends of the utility model on bimetal leaf 3 arrange respectively the first adjustment screw 9 and second and adjust screw 10, the first and adjust screws 9 and second and adjust all can the adjust protective feature of overcurrent of screw 10.Wherein second adjust still can adjust in without the uncap situation protective feature of overcurrent of screw 10.Solve in present technology rated current adjustable circuit breaker in process of production, scale error during because of accessory size error and assembling, and the adjust protective feature of circuit breaker overcurrent of uncap repeatedly.Thereby enhance productivity, reduce production costs.And improve breaker reliability.
The utility model adopts sliding panel structure, is designed to step plane, and is connected by inclined-plane on sliding panel with the face of the second adjustment screw fit, makes the face of differing heights obtain different over-current protective features.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (4)
1. a rated current adjustable circuit breaker, comprises pedestal, heater element, bimetal leaf, terminal block, dropout plate, yoke, knob, dwang and free tripping mechanism; It is characterized in that: one end and the terminal block of described bimetal leaf are welded and fixed, and described terminal block is fixed on pedestal; The fixing one end of described bimetal leaf and terminal block is provided with the first adjustment screw, and its other end is provided with the second adjustment screw; On described dropout plate, offer chute, in described chute, left and right linear slide arranges a sliding panel; Described sliding panel is " E " shape, three legs of described " E " shape sliding panel be provided with bimetal leaf on second adjust working face corresponding to screw, described working face is two step planes; Between described two step planes, connect through an inclined-plane; On described " E " shape sliding panel, extend and be provided with U-shaped groove towards leg rightabout, one end of described dwang, through described U-shaped groove and the interlock of described sliding panel, when dwang rotation, drives sliding panel to move left and right in the chute of dropout plate; The other end of described dwang is also provided with a U-shaped breach, and described dwang is through described U-shaped breach and described knob linkage.
2. rated current adjustable circuit breaker according to claim 1, is characterized in that: the middle part of described bimetal leaf is for semicircle.
3. rated current adjustable circuit breaker according to claim 1, it is characterized in that: described knob is made up of a large cylinder and a small cylinder, described small cylinder is arranged on described large cylinder below, and both different axle center, and the week of described large cylinder is upwards provided with annular groove structure; Described knob is through the U-shaped breach interlock of described small cylinder and described dwang.
4. rated current adjustable circuit breaker according to claim 1, is characterized in that: the middle part of described dwang is provided with circular hole, described dwang is positioned in yoke through a screw by this circular hole, and described dwang rotates around described screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194140.2U CN203826317U (en) | 2014-04-21 | 2014-04-21 | Rated-current adjustable breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194140.2U CN203826317U (en) | 2014-04-21 | 2014-04-21 | Rated-current adjustable breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826317U true CN203826317U (en) | 2014-09-10 |
Family
ID=51481788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194140.2U Expired - Fee Related CN203826317U (en) | 2014-04-21 | 2014-04-21 | Rated-current adjustable breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903927A (en) * | 2014-04-21 | 2014-07-02 | 云南追梦科技有限公司 | Circuit breaker with adjustable rated currents |
| CN104465247A (en) * | 2014-12-30 | 2015-03-25 | 上海电科电器科技有限公司 | Thermal type adjustable tripping device for miniature circuit breaker |
-
2014
- 2014-04-21 CN CN201420194140.2U patent/CN203826317U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903927A (en) * | 2014-04-21 | 2014-07-02 | 云南追梦科技有限公司 | Circuit breaker with adjustable rated currents |
| CN104465247A (en) * | 2014-12-30 | 2015-03-25 | 上海电科电器科技有限公司 | Thermal type adjustable tripping device for miniature circuit breaker |
| WO2016107364A1 (en) * | 2014-12-30 | 2016-07-07 | 上海电科电器科技有限公司 | Adjustable thermal tripping device for miniature circuit breaker |
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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: 20140910 Termination date: 20170421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |