CN205723178U - The contact system of automatic transfer switching electric appliance - Google Patents

The contact system of automatic transfer switching electric appliance Download PDF

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Publication number
CN205723178U
CN205723178U CN201620317325.7U CN201620317325U CN205723178U CN 205723178 U CN205723178 U CN 205723178U CN 201620317325 U CN201620317325 U CN 201620317325U CN 205723178 U CN205723178 U CN 205723178U
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CN
China
Prior art keywords
moving contact
bent plate
contact
electric appliance
automatic transfer
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Active
Application number
CN201620317325.7U
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Chinese (zh)
Inventor
任庆庆
朱熔吾
黄甫
陈先元
高平
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Zhejiang Chint Electrics Co Ltd
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Zhejiang Chint Electrics Co Ltd
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Priority to CN201620317325.7U priority Critical patent/CN205723178U/en
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Publication of CN205723178U publication Critical patent/CN205723178U/en
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Abstract

The contact system of automatic transfer switching electric appliance includes moving contact part and static contact part, described moving contact part includes rocking arm, transmission component, moving contact, bent plate, fixing axle and torsion spring, wherein, described bent plate is provided with the mounting groove matched with moving contact, one end of moving contact is installed in the mounting groove of bent plate, and be arranged in the lump on fixing axle with bent plate, the mid portion of moving contact and bent plate are hinged with rocking arm by transmission component in the lump, and the other end of moving contact is provided with movable contact;Two spring bodies in the middle of described torsion spring are set in the both sides being positioned at bent plate on the two ends of fixing axle, and the two ends of torsion spring are overlapped on moving contact and bent plate respectively.This utility model provides the contact system of a kind of automatic transfer switching electric appliance, and simple in construction, stability are high.

Description

The contact system of automatic transfer switching electric appliance
Technical field
This utility model relates to Low Voltage Electrical Apparatus, is specifically related to the contact system of a kind of automatic transfer switching electric appliance System.
Background technology
The touch spring of existing automatic transfer switching electric appliance uses stage clip, causes mounting process complicated, contact pressure Power is the least, and contact resistance is excessive, causes the wasting of resources, contact system stability to be difficult to ensure that.Prior art The middle touch spring that there is a kind of automatic transfer switching electric appliance uses torsion spring, easy for installation, but there is dynamic touching Head action instability, or the structure that there is contact system is complicated, causes taking up room greatly, processing and manufacturing is difficult, The problems such as efficiency of assembling is low.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of simple in construction, stability The contact system of high automatic transfer switching electric appliance.
For achieving the above object, this utility model adopts the technical scheme that
A kind of contact system of automatic transfer switching electric appliance, including moving contact part and static contact part, described Moving contact part includes rocking arm 1, transmission component 2, moving contact 3, bent plate 4, fixing axle 5 and torsion spring 6, Wherein, described bent plate 4 is provided with the mounting groove 40 matched with moving contact 3, and one end of moving contact 3 is installed on In the mounting groove 40 of bent plate 4, and it is arranged in the lump on fixing axle 5 with bent plate 4, the pars intermedia of moving contact 3 Dividing and bent plate 4 is rotationally connected with rocking arm 1 by transmission component 2 in the lump, the other end of moving contact 3 is provided with Movable contact 30;The two ends that two spring bodies 61 in the middle of described torsion spring 6 are set in fixing axle 5 are upper In the both sides of bent plate 4, the two ends of torsion spring 6 are overlapped on moving contact 3 and bent plate 4 respectively.
Preferably, one end of said two spring body 61 is linked together by the first free end 62, two The other end of spring body 61 extends and forms two the second free ends 63, and wherein, the first free end 62 is overlapped on On moving contact 3, two the second free ends 63 are overlapped on the both sides of bent plate 4 respectively.
Preferably, described moving contact 3 protrudes mounting groove 40, and offers on the projection of moving contact 3 First placing trough 31, for overlapping the first free end 62 of torsion spring 6.
Preferably, described bent plate 4 includes the U-board 41 being provided with mounting groove 40, in the both sides of U-board 41 It is provided with the installation wing 42 near fixing axle 5 on plate lateral wall, the end of the described installation wing 42 offers second and puts Put groove 43, for overlapping the second free end 63 of torsion spring 6.
Preferably, the mid portion of described moving contact 3 is provided with the drive shaft 22 for being arranged on transmission component 2 On drive shaft hole 32, the size of drive shaft hole 32 makes drive shaft 22 drive more than the size of drive shaft 22 In the direction of action of moving contact 3 Guan Bi, the degree of freedom of movement is had in axis hole 32.
Preferably, described drive shaft hole 32 is mounting hole structure.
Preferably, described transmission component 2 includes two connecting rods 20 being separately positioned on bent plate 4 both sides, two One end of connecting rod 20 is linked together by connecting shaft 21 and is realized hinged with rocking arm 1, two connecting rods 20 The other end is linked together by drive shaft 22 and is realized hinged with moving contact 3 and bent plate 4.
Preferably, one end of described rocking arm 1 is provided with the driving square shaft 7 for driving, the other end of rocking arm 1 Hinged with two connecting rods 20 by connecting shaft 21, rocking arm 1 includes mounting cylinder 11 and is arranged on installation Reinforcing plate 12 on cylinder 11 lateral wall and two connecting plates 13, said two connecting plate 13 parallel interval sets Putting, and described reinforcing plate 12 is vertically set between two connecting plates 13, described mounting cylinder 11 is axially opened Being provided with for installing the square hole 10 driving square shaft 7, one end of two connecting plates 13 is connected with mounting cylinder 11, The other end of two connecting plates 13 is corresponding hinged with two connecting rods 20 by connecting shaft 21.
Preferably, U-board 41 and the installation wing 42 of described bent plate 4 is formed by panel beating bending.
The contact system of automatic transfer switching electric appliance of the present utility model, moving contact directly drives with transmission component Connecting, simple in construction and reliable, the synchronicity of raising action, bent plate is used for installing torsion spring and being enclosed within dynamic Contact is outer to play a protective role to moving contact, low cost and can be prevented effectively from moving contact and mutually rub with transmission component Wipe, reduce moving contact abrasion and rock, improve service life and the Reliability of Microprocessor of moving contact;Additionally, it is logical Cross torsion spring and replace stage clip, simplify contact system assembly technology, increase contact pressure, improve contact system Efficiency of assembling and stability;It is arranged on fixing axle by torsion spring so that torsion spring is not upper and lower with moving contact Mobile, reduce the driving force needed for contact system, torsion spring materials'use is less, and after the stress point of moving contact Put, it is simple to install;It is arranged on outside bent plate by torsion spring, simplifies the structure of bent plate, it is simple to install, processing It is simple to manufacture, also reduces the volume of bent plate and moving contact, save and take up room and produce material.Torsion spring with The mounting structure of bent plate and moving contact is simple and reliable, improves efficiency of assembling.By the drive shaft hole of moving contact With being equipped with and realize excess of stroke when moving contact closes with static contact by the torsion of torsion spring of drive shaft, Moving contact is more pressed close to when closing with static contact, improves reliability, simultaneously drives axis hole and play position-limiting action.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the moving contact part of automatic transfer switching electric appliance contact system of the present utility model;
Fig. 2 is the axonometric chart of bent plate of the present utility model;
Fig. 3 is the axonometric chart of rocking arm of the present utility model;
Fig. 4 is the side view of the contact system off-state of automatic transfer switching electric appliance of the present utility model;
Fig. 5 is the side view of the contact system closure state of automatic transfer switching electric appliance of the present utility model.
Detailed description of the invention
The embodiment be given below in conjunction with accompanying drawing 1 to 5, further illustrates automatic conversion of the present utility model and opens Close the detailed description of the invention of the contact system of electrical equipment.The contact system of automatic transfer switching electric appliance of the present utility model System is not limited to the following description.
As it is shown in figure 1, the contact system of automatic transfer switching electric appliance of the present utility model, including moving contact portion Dividing and static contact part, moving contact part includes rocking arm 1, transmission component 2, moving contact 3, bent plate 4, consolidates Dead axle 5 and torsion spring 6, wherein, bent plate 4 is provided with the mounting groove 40 matched with moving contact 3, moving contact 3 One end be installed in the mounting groove 40 of bent plate 4, and and bent plate 4 be arranged in the lump on fixing axle 5, dynamic touch The mid portion of 3 and bent plate 4 are hinged with rocking arm 1 by transmission component 2 in the lump, with realize bent plate 4 and Moving contact 3 can be freely rotatable around fixing axle 5, and the other end of moving contact 3 is provided with movable contact 30, is used for Match with the static contact 8 of static contact part;Two spring bodies 61 in the middle of torsion spring 6 are set in solid Being positioned at the both sides of bent plate 4 on the two ends of dead axle 5, the two ends of torsion spring 6 are overlapped on moving contact 3 and curved respectively On plate 4.Moving contact directly with transmission component drive connection, it is not necessary to contact support, simple in construction and reliably, The synchronicity of raising action, moving contact is played guarantor outside being only used for installing torsion spring and being enclosed within moving contact by bent plate Protect effect, be prevented effectively from moving contact and transmission component phase mutual friction, reduce moving contact abrasion and rock, improving The service life of moving contact and Reliability of Microprocessor;Additionally, replace stage clip by torsion spring, simplify contact system Assembly technology, increases contact pressure, improves efficiency of assembling and the stability of contact system;Pacified by torsion spring It is contained on fixing axle so that torsion spring does not moves up and down with moving contact, reduces the driving force needed for contact system, Torsion spring materials'use is less, and the stress point of moving contact is rearmounted, it is simple to install;It is arranged on curved by torsion spring Outside plate, simplifying the structure of bent plate, it is simple to install, processing and manufacturing is simple, also reduces the body of bent plate and moving contact Long-pending, save and take up room and produce material.Of the present utility model being rotationally connected can be in the way of employing be hinged.
As it is shown in figure 1, torsion spring of the present utility model and moving contact and the assembling structure of bent plate, two springs One end of body 61 is linked together by the first free end 62, and the other end of two spring bodies 61 extends and formed Two the second free ends 63, wherein, the first free end 62 is overlapped on moving contact 3, two the second free ends On 63 both sides being overlapped on bent plate 4 respectively.Rationally distributed simple and reliable, simplify moving contact and bent plate with double The fit structure of torsion spring, it is simple to install, improves efficiency of assembling and stability.Additionally, moving contact 3 protrudes peace Tankage 40, and on the projection of moving contact 3, offer the first placing trough 31, it is used for overlapping torsion spring 6 The first free end 62.Simple in construction, compact in design is reasonable, interferes when being prevented effectively from action, improves Reliability.And, as in figure 2 it is shown, bent plate 4 includes the U-board 41 being provided with mounting groove 40, in U-board It is provided with the installation wing 42 near fixing axle 5 on the biside plate lateral wall of 41, installs and offer on the end of the wing 42 Second placing trough 43, for overlapping the second free end 63 of torsion spring 6.Simple in construction and reliable, compared to Hole, the setting of the second placing trough, it is simple to the installation of torsion spring, improves efficiency of assembling, saves simultaneously and produce material Material and production cost.The U-board 41 of bent plate 4 and install the wing 42 and formed by panel beating bending, sound construction and Reliably.
As shown in Figure 4, transmission component 2 of the present utility model, including being separately positioned on two of bent plate 4 both sides Connecting rod 20, one end of two connecting rods 20 is linked together by connecting shaft 21 and is realized hinged with rocking arm 1, The other end of two connecting rods 20 is linked together by drive shaft 22 and is realized cutting with scissors with moving contact 3 and bent plate 4 Connect;Connecting rod 20 can be freely rotatable around drive shaft 22.Rocking arm and moving contact is realized by two independent connecting rods And the transmission between bent plate, assembling is flexibly, applied widely, and is easily installed, and improves efficiency of assembling, joint Material saving, reduces production cost.Certainly, transmission component 2 can also be to open the other end by one end to close Connecting rod such as U-shaped realizes, and the connecting rod of U-shaped opens end by drive shaft 22 and moving contact 3 and bent plate 4 is hinged, and the connecting rod Guan Bi end of U-shaped is hinged with rocking arm 1, to improve transmission component by connecting shaft 21 Overall structure stability and reliability.Additionally, the mid portion of moving contact 3 is provided with for being arranged on transmission group Drive shaft hole 32 in the drive shaft 22 of part 2, the size of drive shaft hole 32 makes more than the size of drive shaft 22 Drive shaft 22 has the degree of freedom of movement in drive shaft hole 32 in the direction of action of moving contact 3 Guan Bi, with Realize excess of stroke when moving contact 3 closes with static contact 8.By joining of the drive shaft hole of moving contact and drive shaft Close setting and the torsion by torsion spring realizes excess of stroke when moving contact closes with static contact, moving contact and stationary contact More press close to during head Guan Bi, improve reliability, simultaneously drive axis hole and play position-limiting action.Preferably, drive Axis hole 32 is mounting hole structure.
As it is shown on figure 3, rocker structure of the present utility model, one end of rocking arm 1 is provided with for driving of driving Dynamic square shaft 7, the other end of rocking arm 1 is hinged with two connecting rods 20 by connecting shaft 21, rocking arm 1 and connecting rod 20 all can rotate around connecting shaft 21.Rocking arm 1 is formed in one structure, including mounting cylinder 11, Yi Jishe Put the reinforcing plate 12 on mounting cylinder 11 lateral wall and two connecting plates 13, parallel of two connecting plates 13 Every setting, and reinforcing plate 12 is vertically set between two connecting plates 13, and mounting cylinder 11 axially offers For installing the square hole 10 driving square shaft 7, one end of two connecting plates 13 is connected with mounting cylinder 11, and two The other end of individual connecting plate 13 is corresponding hinged with two connecting rods 20 by connecting shaft 21.
As it is shown in figure 1, the course of action of the contact system of automatic transfer switching electric appliance of the present utility model, when Rocking arm 1 concomitant rotation when driving square shaft 7 to rotate, rocking arm 1 is by the connecting rod 20 of transmission component 2, connecting shaft 21 and drive shaft 22 promote bent plate 4 and moving contact 3 to rotate around fixing axle 5.Contact system is off As shown in Figure 4, drive shaft hole that moving contact 3 coordinates with drive shaft 22 32 is mounting hole, moving contact 3 with When static contact 8 disconnects, due to the upper end phase of effect drive shaft 22 and moving contact 3 mounting hole of torsion spring 6 power Cut.When rocking arm 1 rotates clockwise around the center of square hole 10, rocking arm 1 promotes drive shaft by connecting rod 20 22 moving contacts 3 when moving downward move downward therewith, but the moving contact when moving contact 3 contacts with static contact 8 3 stop motions, and the front end of drive shaft 22 and bent plate 4 continues to move downward so that torsion spring 6 occurs shape Becoming, then provide required pressure to moving contact 3, now contact system is in closure state as shown in Figure 5.
Above content is to combine concrete preferred implementation further detailed description of the utility model, It cannot be assumed that of the present utility model being embodied as is confined to these explanations.For technology belonging to this utility model For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making Dry simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (9)

1. a contact system for automatic transfer switching electric appliance, including moving contact part and static contact part, its It is characterised by: described moving contact part includes rocking arm (1), transmission component (2), moving contact (3), bent plate (4), fixing axle (5) and torsion spring (6), wherein, described bent plate (4) is provided with and moving contact (3) phase The mounting groove (40) coordinated, one end of moving contact (3) is installed in the mounting groove (40) of bent plate (4), And be arranged in the lump on fixing axle (5) with bent plate (4), the mid portion of moving contact (3) and bent plate (4) Being rotationally connected with rocking arm (1) by transmission component (2) in the lump, the other end of moving contact (3) is provided with dynamic Contact (30);
Two spring bodies (61) in the middle of described torsion spring (6) are set in the two ends of fixing axle (5) On be positioned at the both sides of bent plate (4), the two ends of torsion spring (6) are overlapped on moving contact (3) and bent plate (4) respectively On.
The contact system of automatic transfer switching electric appliance the most according to claim 1, it is characterised in that: institute The one end stating two spring bodies (61) is linked together by the first free end (62), two spring bodies (61) The other end extend and form two the second free ends (63), wherein, the first free end (62) is overlapped on dynamic touching On head (3), two the second free ends (63) are overlapped on the both sides of bent plate (4) respectively.
The contact system of automatic transfer switching electric appliance the most according to claim 2, it is characterised in that: institute State moving contact (3) and protrude mounting groove (40), and on the projection of moving contact (3), offer first put Put groove (31), be used for overlapping first free end (62) of torsion spring (6).
4. according to the contact system of the automatic transfer switching electric appliance described in Claims 2 or 3, it is characterised in that: Described bent plate (4) includes the U-board (41) being provided with mounting groove (40), in the both sides of U-board (41) It is provided with the installation wing (42) near fixing axle (5) on plate lateral wall, the end of the described installation wing (42) is opened It is provided with the second placing trough (43), is used for overlapping second free end (63) of torsion spring (6).
The contact system of automatic transfer switching electric appliance the most according to claim 1, it is characterised in that: institute The mid portion stating moving contact (3) is provided with in the drive shaft (22) for being arranged on transmission component (2) Drive shaft hole (32), the size of drive shaft hole (32) makes drive shaft (22) more than the size of drive shaft (22) The degree of freedom of movement is had in the direction of action closed along moving contact (3) in drive shaft hole (32).
The contact system of automatic transfer switching electric appliance the most according to claim 5, it is characterised in that: institute Stating drive shaft hole (32) is mounting hole structure.
The contact system of automatic transfer switching electric appliance the most according to claim 1, it is characterised in that: institute State transmission component (2) and include being separately positioned on two connecting rods (20) of bent plate (4) both sides, two connecting rods (20) One end link together and realize hinged with rocking arm (1) by connecting shaft (21), two connecting rods (20) The other end link together and realize hinged with moving contact (3) and bent plate (4) by drive shaft (22).
The contact system of automatic transfer switching electric appliance the most according to claim 7, it is characterised in that: institute The one end stating rocking arm (1) is provided with the driving square shaft (7) for driving, and the other end of rocking arm (1) passes through Connecting shaft (21) is hinged with two connecting rods (20), and rocking arm (1) includes mounting cylinder (11), Yi Jishe Putting the reinforcing plate (12) on mounting cylinder (11) lateral wall and two connecting plates (13), said two is even Fishplate bar (13) parallel interval is arranged, and described reinforcing plate (12) is vertically set on two connecting plates (13) Between, described mounting cylinder (11) axially offers for installing the square hole (10) driving square shaft (7), One end of two connecting plates (13) is connected with mounting cylinder (11), the other end of two connecting plates (13) Corresponding hinged with two connecting rods (20) by connecting shaft (21).
The contact system of automatic transfer switching electric appliance the most according to claim 4, it is characterised in that: institute U-board (41) and the installation wing (42) of stating bent plate (4) are formed by panel beating bending.
CN201620317325.7U 2016-04-15 2016-04-15 The contact system of automatic transfer switching electric appliance Active CN205723178U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620317325.7U CN205723178U (en) 2016-04-15 2016-04-15 The contact system of automatic transfer switching electric appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620317325.7U CN205723178U (en) 2016-04-15 2016-04-15 The contact system of automatic transfer switching electric appliance

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CN205723178U true CN205723178U (en) 2016-11-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118073125A (en) * 2024-04-19 2024-05-24 加西亚电子电器股份有限公司 Isolation switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118073125A (en) * 2024-04-19 2024-05-24 加西亚电子电器股份有限公司 Isolation switch

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd

Assignor: Zhejiang Chint Electrics Co.,Ltd.

Contract record no.: X2020330000078

Denomination of utility model: Contact system of automatic transfer switch

Granted publication date: 20161123

License type: Common License

Record date: 20201021