CN104299865A - Switching-off and switching-on bi-stable-state spring retaining mechanism used for breaker - Google Patents
Switching-off and switching-on bi-stable-state spring retaining mechanism used for breaker Download PDFInfo
- Publication number
- CN104299865A CN104299865A CN201410583671.5A CN201410583671A CN104299865A CN 104299865 A CN104299865 A CN 104299865A CN 201410583671 A CN201410583671 A CN 201410583671A CN 104299865 A CN104299865 A CN 104299865A
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- Prior art keywords
- spring
- connecting rod
- switching
- circuit breaker
- base
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Classifications
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- 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
- H01H71/10—Operating or release mechanisms
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a switching-off and switching-on bi-stable-state spring retaining mechanism used for a breaker. A general breaker needs to keep switching-off and switching-on states of a breaker through a multi-connection-rod lock bar mechanism so that proper switching-off and switching-on retention can be provided, but the manufacturing process and the assembling process of the multi-connection-rod lock bar mechanism are excessively complicated and redundant, and the multi-connection-rod lock bar mechanism occupies much space. To solve the preceding problems, the switching-off and switching-on bi-stable-state spring retaining mechanism is simplified in design structure and can be used for replacing the original multi-connection-rod lock bar mechanism. The switching-off and switching-on bi-stable-state spring retaining mechanism mainly aims to solve a retaining problem of switching-off and switching-on states of the medium-voltage breaker, the structure is simplified, requirements of the manufacturing process and the assembling process of the retaining mechanism are reduced, spring force used in switching-off and switching-on states can be reduced and reliability of the retaining mechanism is improved.
Description
Technical field
Patent of the present invention relates to a kind of circuit-breaker switching on-off maintaining body, specifically a kind of divide-shut brake bistable spring maintaining body that can be used for circuit breaker.
Background technology
Circuit breaker is that a kind of external operation device that can make is manually opened or close alive circuit and automatically disconnect the instrument of overload circuit or short circuit current.
General circuit breaker needs the separating brake and the "on" position that are kept circuit breaker by multi link latch mechanism, to provide suitable separating brake and closing retention force, and the manufacturing process of multi link latch mechanism itself, assembly technology are too complicated and redundancy, and it is large to take up room, for solving the problem of this respect, simplified design structure, can adopt divide-shut brake bistable spring maintaining body to replace original multi link latch mechanism.
Summary of the invention
For Shortcomings in prior art, main purpose of the present invention is the problem kept to solve circuit-breaker switching on-off, and simplified structure, reduces the requirement of maintaining body manufacturing process and assembly technology, separating brake and combined floodgate actuating force can be reduced again, improve the reliability of maintaining body.
The present invention realizes above-mentioned technical purpose by following technological means.
A kind of divide-shut brake bistable spring maintaining body for circuit breaker, comprise circuit breaker static contact, moving contact of breaker, insulated tension pole, connecting rod base, connecting rod, slideway, flexible member, spring retainer baffle plate, spring spool, separating brake guide vane end stop and drive link, described moving contact is positioned at below described fixed contact, be fixedly connected with described insulated tension pole, described connecting rod base is fixed on below described insulated tension pole, described drive link is fixed on below described connecting rod base, the two ends of described connecting rod base form revolute pair respectively by described connecting rod and described spring spool and are connected, described spring spool is arranged in described slideway, the end of described spring spool is connected with described fixing spring retainer baffle plate by flexible member.
Further, described slideway is needle bearing.
Further, connecting rod base and spring spool are got up by pinned connection by described connecting rod.
Further, described flexible member is the flexible member such as spring or disc spring.
Further, also comprise separating brake guide vane end stop, at the below fixed drive connecting rod of described connecting rod base, described separating brake guide vane end stop is enclosed within described drive link, and described separating brake guide vane end stop and circuit breaker are fixed, described separating brake guide vane end stop is connected with described drive link moving sets.
Further, also comprise: replace above-mentioned connecting rod, slideway, spring spool and spring retainer baffle plate with guide post in spring and spring base, in described spring, one end of guide post is connected with described connecting rod base rotation pair, the other end is directly enclosed within inside described spring base, in described spring, guide post is connected with described spring base moving sets, described spring base is connected with revolute pair between circuit breaker, in described spring, guide post is provided with guide vane end stop, and described flexible member is fixed between described guide vane end stop and described spring base.
Beneficial effect of the present invention: by when divide-shut brake, the reaction force produced guide post in spring or spring spool when spring receives extruding, pushes through balance point by connecting rod base, thus completes separating brake making process.Installation of slide track is become needle bearing, to reduce in divide-shut brake process guide post or the frictional resistance between spring spool and fixed part in spring, and adopt bistable spring maintaining body, the divide-shut brake of contact is moved more accurate.
Accompanying drawing explanation
Fig. 1 is the gate-dividing state of circuit breaker bistable spring maintaining body scheme one;
Fig. 2 is the "on" position of circuit breaker bistable spring maintaining body scheme one;
Fig. 3 is the balance point state of circuit breaker bistable spring maintaining body scheme one;
Fig. 4 is the gate-dividing state of circuit breaker bistable spring maintaining body scheme two;
Fig. 5 is the "on" position of circuit breaker bistable spring maintaining body scheme two;
Fig. 6 is the balance point state of circuit breaker bistable spring maintaining body scheme two;
Fig. 7 is the schematic perspective view of spring base.
Description of reference numerals is as follows:
1, circuit breaker static contact; 2, moving contact of breaker; 3, insulated tension pole; 4, connecting rod base; 5, connecting rod; 6, slideway; 7, spring; 8, spring retainer baffle plate; 9, spring spool; 10, separating brake guide vane end stop; 11, drive link 12, guide vane end stop 13, spring base 14, guide post in spring.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
Below with reference to the accompanying drawings a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to the embodiment of the present invention is described in detail.
In scheme one, as shown in Figure 1-Figure 3, a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to the embodiment of the present invention comprises circuit breaker static contact 1, moving contact of breaker 2, insulated tension pole 3, connecting rod base 4, connecting rod 5, slideway 6, flexible member 7, spring retainer baffle plate 8, spring spool 9, separating brake guide vane end stop 10 and drive link 11, described moving contact 2 is positioned at below described fixed contact 1, be fixedly connected with described insulated tension pole 3, described connecting rod base 4 is fixed on below described insulated tension pole 3, described drive link 11 is fixed on below described connecting rod base 4, the two ends of described connecting rod base 4 form revolute pair respectively by described connecting rod 5 with described spring spool 9 and are connected, described spring spool 9 is arranged in described slideway 6, the end of described spring spool 9 is connected with described spring retainer baffle plate 8 by flexible member 7.Described slideway 6 is needle bearing, and described flexible member 7 is spring or disc spring etc., and connecting rod base 4 and spring spool 9 are got up by pinned connection by described connecting rod 5.
Also comprise separating brake guide vane end stop 10, at the below fixed drive connecting rod 11 of described connecting rod base 4, described separating brake guide vane end stop 10 is enclosed within described drive link 11, and described separating brake guide vane end stop 10 is connected with described drive link 11 moving sets.
Circuit breaker is when gate-dividing state, and flexible member 7 is squeezed and produces reaction force to spring spool 9, produces downward making a concerted effort, can provide a separating brake confining force to moving contact under gate-dividing state to connecting rod base 4; In breaker closing process, after connecting rod base 4 is pushed through balance point by drive link 11, what can rely on flexible member 7 shifts moving contact 2 onto closing position with joint efforts, completes making process; Circuit breaker is when "on" position, flexible member 7 is squeezed and produces reaction force to spring spool 9, under "on" position to connecting rod base 4 produce one upwards make a concerted effort, can provide a closing retention force to moving contact, and this closing retention force can be regulated by the length of adjustable elastic element 7 and connecting rod 5.
Be illustrated in figure 1 breaker open operation state, flexible member 7 is squeezed and produces reaction force to spring spool 9, produces downward making a concerted effort, can provide a separating brake confining force to moving contact under gate-dividing state to connecting rod base 4.
In making process, a combined floodgate actuating force is upwards provided by drive link 11, connecting rod base 4 is only needed to push through balance point, as shown in Figure 3, moving contact 2 is upwards pushed into closing position by the reactive force namely by himself inertia and flexible member 7 pairs of spring spools 9, complete closing operation, as shown in Figure 2.
When "on" position, flexible member 7 is squeezed and produces reaction force to spring spool 9, under "on" position to connecting rod base 4 produce one upwards make a concerted effort, can provide a closing retention force to moving contact, and this closing retention force can be regulated by the length of adjustable elastic element 7 and connecting rod 5.
Simultaneously in separating brake and making process, have employed the design of needle bearing, reduce the frictional resistance between spring spool 9 and fixed part in divide-shut brake process.
In scheme one, movable member is less, and quality is light, and same angle, obtain same divide-shut brake confining force, the power that scheme two needs spring to provide is less, and energy loss is relatively less.
In further scheme two, as Figure 4-Figure 6, connecting rod 5, slideway 6, spring spool 9 and spring retainer baffle plate 8 is replaced with guide post in spring 14 and spring base 13, in described spring, guide post 14 is directly inserted in inside described spring base 13, in described spring, guide post 14 is connected with described spring base 13 moving sets, described spring base 13 is connected with revolute pair between circuit breaker, in described spring, guide post 14 is provided with guide vane end stop 12, and described spring 7 is fixed between described guide vane end stop 12 and described postive stop baffle 8.
Circuit breaker is when gate-dividing state, and flexible member 7 is squeezed and produces reaction force to guide post in spring 14, produces downward making a concerted effort, can provide a separating brake confining force to moving contact under gate-dividing state to connecting rod base 4; In breaker closing process, after connecting rod base 4 is pushed through balance point by drive link 11, what can rely on flexible member 7 shifts moving contact 2 onto closing position with joint efforts, complete making process, circuit breaker is when "on" position, flexible member 7 is squeezed and produces reaction force to guide post in spring 14, under "on" position to connecting rod base 4 produce one upwards make a concerted effort, can provide a closing retention force to moving contact, and this closing retention force can be regulated by the length of adjustable elastic element 7 and connecting rod 5.
Be illustrated in figure 4 breaker open operation state, flexible member 7 is squeezed and produces reaction force to guide post in spring 14, produces downward making a concerted effort, can provide a separating brake confining force to moving contact under gate-dividing state to connecting rod base 4.
In making process, a combined floodgate actuating force is upwards provided by drive link 11, connecting rod base 4 is only needed to push through balance point, as shown in Figure 3, namely by the reactive force of guide post 14 in himself inertia and flexible member 7 pairs of springs, moving contact 2 is upwards pushed into closing position, complete closing operation, as shown in Figure 5.
When "on" position, flexible member 7 is squeezed and produces reaction force to guide post in spring 14, under "on" position to connecting rod base 4 produce one upwards make a concerted effort, can provide a closing retention force to moving contact, and this closing retention force can be regulated by the length of adjustable elastic element 7 and connecting rod 5.
In scheme two, when clearance between open contacts is larger, the restriction of a kind of length of connecting rod of the scheme that This solution avoids, can realize the stroke of contact greater depth.And in divide-shut brake process, after being subject to larger actuating force, in the spring of scheme one, guide post will produce a larger pressure to needle bearing, when concrete realization is separating brake, larger pressure is produced to lower bearing, during combined floodgate, larger pressure is produced to upper bearing (metal), easily cause the damage of needle bearing on the one hand, the resistance that in the motion process of another aspect guide post in spring, generation one is contrary with in motion.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (6)
1. the divide-shut brake bistable spring maintaining body for circuit breaker, it is characterized in that, comprise circuit breaker static contact (1), moving contact of breaker (2), insulated tension pole (3), connecting rod base (4), connecting rod (5), slideway (6), flexible member (7), spring retainer baffle plate (8), spring spool (9), separating brake guide vane end stop (10) and drive link (11), described moving contact (2) is positioned at described fixed contact (1) below, be fixedly connected with described insulated tension pole (3), described connecting rod base (4) is fixed on described insulated tension pole (3) below, described drive link (11) is fixed on described connecting rod base (4) below, the two ends of described connecting rod base (4) form revolute pair respectively by described connecting rod (5) with described spring spool (9) and are connected, described spring spool (9) is arranged in described slideway (6), the end of described spring spool (9) is connected with described fixing spring retainer baffle plate (8) by flexible member (7).
2. a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to claim 1, it is characterized in that, described slideway (6) is needle bearing.
3. a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to claim 1, it is characterized in that, connecting rod base (4) and spring spool (9) are got up by pinned connection by described connecting rod (5).
4. a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to claim 1, it is characterized in that, described flexible member (7) is the flexible member such as spring or disc spring.
5. a kind of divide-shut brake bistable spring maintaining body for circuit breaker according to claim 1, it is characterized in that, also comprise separating brake guide vane end stop (10), in below fixed drive connecting rod (11) of described connecting rod base (4), described separating brake guide vane end stop (10) is enclosed within described drive link (11), and described separating brake guide vane end stop (10) and circuit breaker are fixed, and described separating brake guide vane end stop (10) is connected with described drive link (11) moving sets.
6. according to a kind of divide-shut brake bistable spring maintaining body for circuit breaker in claim 1-5 described in any one, also comprise: replace connecting rod (5) with guide post (14) in spring and spring base (13), slideway (6), spring spool (9) and spring retainer baffle plate (8), in described spring, one end of guide post (14) is connected with described connecting rod base (4) revolute pair, the other end is directly enclosed within described spring base (13) the inside, in described spring, guide post (14) is connected with described spring base (13) moving sets, described spring base (13) is connected with revolute pair between circuit breaker, in described spring, guide post (14) is provided with guide vane end stop (12), described flexible member (7) is fixed between described guide vane end stop (12) and described spring base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583671.5A CN104299865A (en) | 2014-10-28 | 2014-10-28 | Switching-off and switching-on bi-stable-state spring retaining mechanism used for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583671.5A CN104299865A (en) | 2014-10-28 | 2014-10-28 | Switching-off and switching-on bi-stable-state spring retaining mechanism used for breaker |
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| Publication Number | Publication Date |
|---|---|
| CN104299865A true CN104299865A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410583671.5A Pending CN104299865A (en) | 2014-10-28 | 2014-10-28 | Switching-off and switching-on bi-stable-state spring retaining mechanism used for breaker |
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| CN (1) | CN104299865A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105930622A (en) * | 2016-06-01 | 2016-09-07 | 中国西电电气股份有限公司 | Method for determining motion state of spring operating mechanism of circuit breaker |
| CN106024537A (en) * | 2016-06-30 | 2016-10-12 | 平高集团有限公司 | Opening-closing tool of circuit breaker |
| CN108417437A (en) * | 2018-03-28 | 2018-08-17 | 南方电网科学研究院有限责任公司 | Cam retaining mechanism for maintaining opening and closing of direct-current circuit breaker |
| CN111025140A (en) * | 2019-12-27 | 2020-04-17 | 国网山西省电力公司电力科学研究院 | Method for improving opening speed of breaker model based on spring assistance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681083A (en) * | 2013-12-16 | 2014-03-26 | 清华大学 | High-voltage and direct-current quick disconnecting switch |
| WO2014063802A1 (en) * | 2012-10-22 | 2014-05-01 | Abb Technology Ag | Fault current limiter arrangement |
| CN103811205A (en) * | 2014-02-25 | 2014-05-21 | 无锡市凯旋电机有限公司 | Bistable bidirectional self-lock device |
| CN204315478U (en) * | 2014-10-28 | 2015-05-06 | 大全集团有限公司 | A kind of divide-shut brake bistable spring maintaining body for circuit breaker |
-
2014
- 2014-10-28 CN CN201410583671.5A patent/CN104299865A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063802A1 (en) * | 2012-10-22 | 2014-05-01 | Abb Technology Ag | Fault current limiter arrangement |
| CN103681083A (en) * | 2013-12-16 | 2014-03-26 | 清华大学 | High-voltage and direct-current quick disconnecting switch |
| CN103811205A (en) * | 2014-02-25 | 2014-05-21 | 无锡市凯旋电机有限公司 | Bistable bidirectional self-lock device |
| CN204315478U (en) * | 2014-10-28 | 2015-05-06 | 大全集团有限公司 | A kind of divide-shut brake bistable spring maintaining body for circuit breaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105930622A (en) * | 2016-06-01 | 2016-09-07 | 中国西电电气股份有限公司 | Method for determining motion state of spring operating mechanism of circuit breaker |
| CN105930622B (en) * | 2016-06-01 | 2019-03-22 | 中国西电电气股份有限公司 | A kind of breaker spring operating mechanism motion state determination method |
| CN106024537A (en) * | 2016-06-30 | 2016-10-12 | 平高集团有限公司 | Opening-closing tool of circuit breaker |
| CN108417437A (en) * | 2018-03-28 | 2018-08-17 | 南方电网科学研究院有限责任公司 | Cam retaining mechanism for maintaining opening and closing of direct-current circuit breaker |
| CN111025140A (en) * | 2019-12-27 | 2020-04-17 | 国网山西省电力公司电力科学研究院 | Method for improving opening speed of breaker model based on spring assistance |
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