CN205582861U - Moving contact mechanism for withdrawable circuit -breaker - Google Patents
Moving contact mechanism for withdrawable circuit -breaker Download PDFInfo
- Publication number
- CN205582861U CN205582861U CN201620227525.3U CN201620227525U CN205582861U CN 205582861 U CN205582861 U CN 205582861U CN 201620227525 U CN201620227525 U CN 201620227525U CN 205582861 U CN205582861 U CN 205582861U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- arc extinguishing
- pedestal
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a moving contact mechanism for withdrawable circuit -breaker, including the contact frame, articulate in a plurality of moving contacts on the contact frame, the moving contact orientation the one side of contact frame is provided with the spring, the moving contact dorsad one side of spring is provided with the silver contact, the moving contact is provided with arc extinguishing spare, arc extinguishing spare includes the arc extinguishing face, the arc extinguishing face with the silver contact homonymy sets up, the arc extinguishing face to the silver contact is provided with the striking separation blade, the striking separation blade connect in the arc extinguishing face, and with the setting of buckling of arc extinguishing face. The utility model aims at providing a moving contact mechanism for withdrawable circuit -breaker, the utility model has the advantages of compact structure, reliable and stable, the arc extinguishing is effectual.
Description
Technical field
This utility model relates to metallic conduction part field, particularly to the moving contact in frame-type circuit breaker.
Background technology
Contact assembly is requisite parts in chopper, plays the electric current under the conditions of connection, carrying and disjunction normal circuit, also can connect under the improper circuit condition of regulation.
At present, disclose the contact system of a kind of frame-type circuit breaker of Chinese patent of Application No. CN201520722077.X on the market, it includes frame body, the contact assembly being arranged in frame body, frame body includes pedestal and upper cover, upper cover is arranged on pedestal, constitute between pedestal and upper cover and have containing cavity, contact assembly includes static contact, contact rack, the rotating shaft being arranged in contact rack, the multiple moving contacts being arranged in rotating shaft at corresponding static contact, the Contact Cover being arranged on contact supporting at the lower section of the movable contact of corresponding moving contact, it is installed on the contact support of contact supporting upper end, it is provided with spring between described moving contact and contact support, the two ends of spring abut with moving contact and contact support respectively, it is respectively adopted between moving contact and the fixed part of Down Highway and is flexible coupling.
But this patent is disadvantageous in that speed is exceedingly fast owing to moving contact sensitivity when divide-shut brake duty switches is higher, transient motion produces the biggest electric arc, easily causes purpose of breaker failure, additionally, dynamic contact mechanism breaking speed is slower.
Utility model content
The purpose of this utility model is to provide a kind of open frame circuit breaker dynamic contact mechanism.
This utility model has compact conformation, reliable and stable advantage, and arc quenching effect is good.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of open frame circuit breaker dynamic contact mechanism, it includes frame body, the moving contact component being arranged in frame body, described frame body includes pedestal and upper cover, described pedestal and described upper cover constitute the containing cavity of accommodating moving contact component, described moving contact component includes contact rack, the some moving contacts being arranged in contact rack, described moving contact is connected with metal soft connector and Down Highway in turn, described pedestal is fixedly installed static contact, described Down Highway is fixing with pedestal to be connected, described contact rack is hinged with pedestal, described moving contact is rotated by described contact rack and abuts with described static contact, described contact rack is provided with the propelling piece for improving moving contact and static contact separating rate.
By using technique scheme: the setting of propelling piece can accelerate the separating rate of moving contact and static contact, when moving contact to static contact motion until during Di Jieing, the active force of propelling piece savings is also increasing, until moving contact abuts with static contact, this active force is to peaking, there is certain potential energy, thus reach the effect of moving contact and static contact sharp separation.
This utility model is further arranged to: described pedestal is provided with fixing lug boss, described contact rack is provided with articulated section, described fixing lug boss is connected with articulated section, the side of described propelling piece abuts with the face at moving contact place, opposite side abuts with the face at static contact place, and described propelling piece uses V-arrangement shell fragment.
By using technique scheme: fixing lug boss coordinates so that contact rack is movably connected on pedestal with articulated section, propelling piece using torsion spring both make to install simple and convenient, time saving and energy saving, the work efficiency of assembling is greatly promoted.
This utility model is further arranged to: described contact rack includes sidewall, is provided with metal reinforced part between described sidewall and described moving contact, and described metal reinforced part and/or sidewall are provided with through hole.
By using technique scheme: the structure that contact rack and moving contact entirety are constituted can be played good reinforcement effect by the setting of metal reinforced part.
This utility model is further arranged to: described pedestal and/or upper cover are provided with grip part, and described grip part is that strip groove is arranged.
By using technique scheme: owing to its volume of the frame body in open frame circuit breaker is bigger, heavier-weight, inconvenient operator take handling, and therefore the setting of grip part makes the operator can be convenient taking frame body when, it is simple to exert a force.Grip part is arranged to groove simpler, convenient, fast.
This utility model is further arranged to: the degree of depth of described grip part is at least 5mm, and width is at least 15mm.
By using technique scheme: the degree of depth of grip part is at least 5mm, and width at least 15mm draws through applicant's test of many times so that user is more convenient when touching to be held, force more conforms to man machine relation.
This utility model is further arranged to: described moving contact is provided with spring towards the one side of described contact rack, the side of the most described spring of described moving contact is provided with silver contact, described moving contact is provided with arc extinction part, described arc extinction part includes arc extinguishing face, described arc extinguishing face is arranged with described silver contact homonymy, described arc extinguishing is provided with striking catch facing to described silver contact, and described striking catch is connected to described arc extinguishing face, and arranges with the bending of described arc extinguishing face.
By using technique scheme: the electric arc that moving contact produces when action can be played inhibitory action by the setting of arc extinction part, striking catch is between arc extinguishing face and silver contact, owing to arranging in bending with arc extinguishing face, therefore the electric arc produced during silver contact switching action is served guiding function, and electric arc serves the effect of stop, and the generation of arc phenomenon is climbed in suppression.
This utility model is further arranged to: described arc extinguishing face is provided with folding line, and described arc extinguishing face is stirred by folding line elasticity with described striking catch.
By using technique scheme: owing to silver contact produced electric arc when action has certain impact dynamics, can be released to striking catch, the cooperation arc extinction part own material properties that arranges of folding line enables to striking catch and has the good effect that automatically resets.
This utility model is further arranged to: be provided with arc extinguishing inserted sheet between described adjacent moving contact.
By using technique scheme: the electric arc that moving contact produces when action can be played inhibitory action by the setting of arc extinguishing inserted sheet.
This utility model is further arranged to: described pedestal is provided with connector, and described pedestal is connected by connector with described upper cover.
By using technique scheme: the setting of connector makes pedestal be connected with upper cover more closely, firmly.
This utility model is further arranged to: described connector includes axle sleeve and inserts, and described axle sleeve is fixing with pedestal or upper cover to be connected, and described inserts is fixing with pedestal or upper cover to be connected.
By using technique scheme: the axle sleeve end face different from inserts can give full play to the feature that geometric figure is structure so that upper cover and pedestal connection effect are strengthened further.
In sum, this utility model has the advantages that the setting of propelling piece can accelerate the separating rate of moving contact and static contact, when moving contact to static contact motion until during Di Jieing, the active force of propelling piece savings is also increasing, until moving contact abuts with static contact, this active force, to peaking, has certain potential energy, thus reaches the effect of moving contact and static contact sharp separation.The structure that contact rack and moving contact entirety are constituted can be played good reinforcement effect by the setting of metal reinforced part.Owing to its volume of the frame body in open frame circuit breaker is relatively big, heavier-weight, it has not been convenient to operator take handling, therefore the setting of grip part makes the operator can be convenient taking frame body when, it is simple to exert a force.Grip part is arranged to groove simpler, convenient, fast.The electric arc that moving contact produces when action can be played inhibitory action by the setting of arc extinction part, striking catch is between arc extinguishing face and silver contact, owing to arranging in bending with arc extinguishing face, therefore the electric arc produced during silver contact switching action is served guiding function, and electric arc serves the effect of stop, and the generation of arc phenomenon is climbed in suppression.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation of moving contact component；
Fig. 3 is the A portion enlarged drawing of Fig. 2；
Fig. 4 is the structural representation of embodiment 2.
In figure, 1, contact rack；11, sidewall；2, moving contact；21, silver contact；3, spring；4, Down Highway；41, fixing port；5, metal soft connector；6, arc extinction part；61, arc extinguishing face；62, stationary plane；7, fixing axle；72, sticking department；721, latch recess；722, chamfered section；73, locking piece；731, inner side；732, clamping salient point；8, striking catch；81, folding line；9, metal reinforced part；91, arc extinguishing inserted sheet；10, frame body；101, pedestal；102, upper cover；103, grip part；104, static contact；105, propelling piece；106, connector；1061, axle sleeve；1062, inserts；1098, fixing lug boss；1099, articulated section.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment 1:
As shown in Figure 1, a kind of open frame circuit breaker dynamic contact mechanism, it includes frame body 10, it is arranged at the moving contact component in frame body 10, frame body 10 includes pedestal 101 and upper cover 102, pedestal 101 and upper cover 102 constitute the containing cavity of accommodating moving contact component, moving contact component includes contact rack 1, the some moving contacts 2 being arranged in contact rack 1, moving contact 2 is connected with metal soft connector 5 and Down Highway 4 in turn, pedestal 101 is fixedly installed static contact 104, Down Highway 4 is fixing with pedestal 101 to be connected, contact rack 1 is hinged with pedestal 101, moving contact 2 is rotated by contact rack 1 and is abutted with static contact 104, contact rack 1 is provided with the propelling piece 105 for improving moving contact 2 and static contact 104 separating rate.Pedestal 101 is provided with fixing lug boss 1098, contact rack 1 is provided with articulated section 1099, and fixing lug boss 1098 is connected with articulated section 1099, and the side of propelling piece 105 abuts with the face at moving contact 2 place, opposite side abuts with the face at static contact 104 place, and propelling piece 105 uses V-arrangement shell fragment.Upper cover 102 is provided with grip part 103, and grip part 103 is arranged in strip groove.The degree of depth of grip part 103 is at least 5mm, and width is at least 15mm.Pedestal 101 is provided with connector 106, and pedestal 101 is connected by connector 106 with upper cover 102.Connector 106 includes axle sleeve 1061 and inserts 1062, and axle sleeve 1061, inserts 1062 are all fixed be connected with pedestal 101, upper cover 102.
As shown in Figures 2 and 3, contact rack 1 includes sidewall 11, is provided with metal reinforced part 9 between sidewall 11 and moving contact 2, and metal reinforced part 9 and sidewall 11 are provided with through hole.Moving contact 2 is provided with spring 3 towards the one side of contact rack 1, the side of moving contact 2 spring 3 dorsad is provided with silver contact 21, moving contact 2 is provided with arc extinction part 6, arc extinction part 6 includes arc extinguishing face 61, arc extinguishing face 61 is arranged with silver contact 21 homonymy, arc extinguishing face 61 is provided with striking catch 8 towards silver contact 21, and striking catch 8 is connected to arc extinguishing face 61, and arranges with arc extinguishing face 61 bending.Arc extinguishing face 61 is provided with 81, and arc extinguishing face 61 is stirred by folding line 81 elasticity with striking catch 8.It is provided with arc extinguishing inserted sheet 91 between adjacent moving contact 2.
Certainly, propelling piece 105 can also use torsion spring, linking with contact rack 1 of torsion spring, and another side abuts with pedestal 101, and when moving contact 2 moves to static contact 104, torsion spring has the active force making moving contact 2 with static contact 104 separation trend.
Embodiment 2:
As shown in Figure 4, the difference with embodiment 1 is to be not provided with connector 106 and arc extinguishing inserted sheet 91.
In sum, the electric arc that moving contact 2 produces when action can be played inhibitory action by the setting of arc extinction part 6 and arc extinguishing inserted sheet 91, striking catch 8 is between arc extinguishing face 61 and silver contact 21, owing to arranging in bending with arc extinguishing face 61, therefore the electric arc produced during silver contact 21 switching action is served guiding function, and electric arc serves the effect of stop, and the generation of arc phenomenon is climbed in suppression.Cooperation arc extinction part 6 own material properties that arranges of folding line 81 enables to striking catch 8 and has the good effect that automatically resets.Arc extinction part 6 and moving contact 2 are coaxially fixed, and it is firm more to stablize, meanwhile, the most convenient when assembly and disassembly.Moving contact 2 is fixed on contact rack 1 with coordinating of fixing axle 7 by sidewall 11, assemble simple and convenient fast, time saving and energy saving, and fixed effect stablize firm.The structure that contact rack 1 and moving contact 2 entirety are constituted can be played good reinforcement effect by the setting of metal reinforced part 9.The both sides of moving contact 2 can abut with both sides sidewall 11 respectively, and sidewall 11 can be played the effect of clamping moving contact 2 by this.
The setting of propelling piece 105 can accelerate the separating rate of moving contact 2 and static contact 104, when moving contact 2 is during static contact 104 moves until abutting, the active force of propelling piece 105 savings is also increasing, until moving contact 2 abuts with static contact 104, this active force is to peaking, there is certain potential energy, thus reach the effect of moving contact 2 and static contact 104 sharp separation.Propelling piece 105 uses torsion spring both make to install simple and convenient, and time saving and energy saving, the work efficiency of assembling is greatly promoted.Owing to its volume of frame body 10 in open frame circuit breaker is relatively big, heavier-weight, it has not been convenient to operator take handling, therefore the setting of grip part 103 makes the operator can be convenient taking frame body 10 when, it is simple to exert a force.Grip part 103 is arranged to groove simpler, convenient, fast.The degree of depth of grip part 103 is at least 5mm, and width at least 15mm draws through applicant's test of many times so that user is more convenient when touching to be held, and force more conforms to man machine relation.The electric arc that moving contact 2 produces when action can be played inhibitory action by the setting of arc extinction part 6, striking catch 8 is between arc extinguishing face 61 and silver contact 21, owing to arranging in bending with arc extinguishing face 61, therefore the electric arc produced during silver contact 21 switching action is served guiding function, and electric arc serves the effect of stop, and the generation of arc phenomenon is climbed in suppression.Owing to silver contact 21 produced electric arc when action has certain impact dynamics, can be released to striking catch 8, cooperation arc extinction part 6 own material properties that arranges of folding line 81 enables to striking catch 8 and has the good effect that automatically resets.The electric arc that moving contact 2 produces when action can be played inhibitory action by the setting of arc extinguishing inserted sheet 91.The setting of connector 106 makes pedestal 101 be connected with upper cover 102 more closely, firmly.Axle sleeve 1061 end face different from inserts 1062 can give full play to the feature that geometric figure is structure so that upper cover 102 and pedestal 101 connect effect and strengthen further.
The structure that contact rack 1 and moving contact 2 entirety are constituted can be played good reinforcement effect by the setting of metal reinforced part 9.The both sides of moving contact 2 can abut with both sides sidewall 11 respectively, and sidewall 11 can be played the effect of clamping moving contact 2 by this.
Sticking department 72 includes that latch recess 721 and chamfered section 722, locking piece 73 and latch recess 721 can lock the axial length of fixing axle 7.Clamping salient point 732 and the snap-fit engagement of latch recess 721 produce axial spacing so that moving contact 2 is securely fastened on the sidewall 11 of contact rack 1.The setting of fixed groove and reinforcing male member makes spring 3 have dual fixing guarantee at moving contact 2 and contact rack 1, the outer surface at spring 3 two ends and fixed groove clamping, reinforce male member and insert spring 3, fixation is played at the center of spring 3, so can be greatly improved moving contact 2 when divide-shut brake duty switches, be greatly improved the stability of spring 3.The setting of chamfered section 722 enables to operator and is more prone to fixing axle 7 through through hole.Chamfered section 722 more convenient installation is set.
Claims (10)
- null1. an open frame circuit breaker dynamic contact mechanism，It includes frame body (10)、Moving contact (2) assembly being arranged in frame body (10)，It is characterized in that: described frame body (10) includes pedestal (101) and upper cover (102)，Described pedestal (101) and described upper cover (102) constitute the containing cavity of accommodating moving contact (2) assembly，Described moving contact (2) assembly includes contact rack (1)、The some moving contacts (2) being arranged in contact rack (1)，Described moving contact (2) is connected with metal soft connector (5) and Down Highway (4) in turn，Described pedestal (101) is fixedly installed static contact (104)，Described Down Highway (4) is fixing with pedestal (101) to be connected，Described contact rack (1) is hinged with pedestal (101)，Described moving contact (2) is rotated by described contact rack (1) and abuts with described static contact (104)，Described contact rack (1) is provided with the propelling piece (105) for improving moving contact (2) and static contact (104) separating rate.
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 1, it is characterized in that: described pedestal (101) is provided with fixing lug boss (1098), described contact rack (1) is provided with articulated section (1099), described fixing lug boss (1098) is connected with articulated section (1099), the side of described propelling piece (105) abuts with the face at moving contact (2) place, opposite side abuts with the face at static contact (104) place, and described propelling piece (105) uses V-arrangement shell fragment.
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 1 and 2, it is characterized in that: described contact rack (1) includes sidewall (11), being provided with metal reinforced part (9) between described sidewall (11) and described moving contact (2), described metal reinforced part (9) and/or sidewall (11) are provided with through hole.
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 3, it is characterized in that: described pedestal (101) and/or upper cover (102) are provided with grip part (103), described grip part (103) are arranged in strip groove.
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 4, it is characterised in that: the degree of depth of described grip part (103) is at least 5mm, and width is at least 15mm.
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 1 and 2, it is characterized in that: described moving contact (2) is provided with spring (3) towards the one side of described contact rack (1), the side of described moving contact (2) the most described spring (3) is provided with silver contact (21), described moving contact (2) is provided with arc extinction part (6), described arc extinction part (6) includes arc extinguishing face (61), described arc extinguishing face (61) is arranged with described silver contact (21) homonymy, described arc extinguishing face (61) is provided with striking catch (8) towards described silver contact (21), described striking catch (8) is connected to described arc extinguishing face (61), and arrange with the bending of described arc extinguishing face (61).
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 6, it is characterized in that: described arc extinguishing face (61) is provided with folding line (81), described arc extinguishing face (61) is stirred by folding line (81) elasticity with described striking catch (8).
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 7, it is characterised in that: it is provided with arc extinguishing inserted sheet (91) between described adjacent moving contact (2).
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 1 and 2, it is characterized in that: described pedestal (101) is provided with connector (106), described pedestal (101) is connected by connector (106) with described upper cover (102).
- A kind of open frame circuit breaker dynamic contact mechanism the most according to claim 9, it is characterized in that: described connector (106) includes axle sleeve (1061) and inserts (1062), described axle sleeve (1061) is fixing with pedestal (101) or upper cover (102) to be connected, and described inserts (1062) is fixing with pedestal (101) or upper cover (102) to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227525.3U CN205582861U (en) | 2016-03-23 | 2016-03-23 | Moving contact mechanism for withdrawable circuit -breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227525.3U CN205582861U (en) | 2016-03-23 | 2016-03-23 | Moving contact mechanism for withdrawable circuit -breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205582861U true CN205582861U (en) | 2016-09-14 |
Family
ID=56866442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620227525.3U Expired - Fee Related CN205582861U (en) | 2016-03-23 | 2016-03-23 | Moving contact mechanism for withdrawable circuit -breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205582861U (en) |
-
2016
- 2016-03-23 CN CN201620227525.3U patent/CN205582861U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20180323 |