CN105097347B - The switch of electric arc can be suppressed - Google Patents
The switch of electric arc can be suppressed Download PDFInfo
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- CN105097347B CN105097347B CN201510318984.2A CN201510318984A CN105097347B CN 105097347 B CN105097347 B CN 105097347B CN 201510318984 A CN201510318984 A CN 201510318984A CN 105097347 B CN105097347 B CN 105097347B
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- seesaw
- seesaw body
- shaped
- moving contact
- contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/36—Driving mechanisms
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Abstract
It is a kind of to suppress the switch of electric arc, including shift knob, seesaw component, input terminal, actuator portion dress, seesaw keeper, static contact.Seesaw component includes taking the shape of the letter U in the middle part of seesaw body, seesaw body, and actuator portion dress includes drive rod, spring and transition piece；The upper end of transition piece is connected with shift knob, receiving cavity of the transition piece provided with a cylindricality, the upper end of drive rod is located in receiving cavity, the upper end of spring withstands on the bottom of chamber for accommodating cavity, the lower end of spring is withstood on drive rod, the bottom for the U-shaped that the end of the lower end of drive rod is withstood in the middle part of seesaw body, in switch connection or disconnection process, the side wall away from that moving contact mutually touched with static contact of U-shaped in the middle part of the dress meeting of actuator portion and seesaw body touches company, so as to avoid or substantially reduce between seesaw body and the upper end of input terminal and move, bounced between static contact, so as to substantially reduce switching arc, improve switch service life.
Description
Technical field
The present invention relates to a kind of electrical installation, the switch of electric arc can be suppressed more particularly, to a kind of.
Background technology
Switch is a kind of common electrical installation, for the electric current in connection or the one or more circuits of disjunction.It is a kind of normal
Switch, includes shift knob, seesaw component, input terminal, actuator portion dress, seesaw keeper, static contact.Wherein stick up
Board component includes taking the shape of the letter U in the middle part of seesaw body, seesaw body, two side wall difference rolled over shapes of the U-shaped in the middle part of seesaw body
Into seesaw flanging, seesaw flanging is installed with moving contact；Lower surface in the middle part of seesaw body is supported on the upper end of input terminal, seesaw
Front and back end in the middle part of body is provided with positioning convex；The positioning convex is stretched in the seesaw locating slot being located on seesaw positioning seat.
Actuator portion dress includes drive rod, spring and transition piece.The upper end of transition piece is connected with shift knob, and transition piece is provided with one
The receiving cavity of cylindricality, the upper end of drive rod is located in receiving cavity, and the upper end of spring withstands on the bottom of chamber for accommodating cavity, spring
Lower end is withstood on drive rod, the bottom for the U-shaped that the end of the lower end of drive rod is withstood in the middle part of seesaw body, and the upper end of drive rod is inserted
Put in spring.It is sliding on the bottom of the U-shaped of the end of the lower end of drive rod in the middle part of seesaw body when pressing shift knob
It is dynamic, so that corresponding swing occurs for seesaw body, so that moving contact is contacted or separated with corresponding static contact, also
It is to make switch connection or disjunction.
Switch can produce temperature very high electric arc between the moment of connection or disjunction, current-carrying part, and it is that electric current flows through load
Short space air gap between part is flowed, makes the phenomenon that gas or liquid medium are free, discharge.Electric arc is primarily generated at switch connection or disconnected
Open between the dynamic/static contact of moment, between seesaw body and support end.
Switching arc can produce serious harm, wherein relatively common is：The electric arc of high temperature is by the gold of dynamic and static contact surface
Category fusing is evaporated, and finally makes switch failure, and serious can also cause accident.In order to reduce appearance electricity between dynamic and static contact
Arc, generally does the silver contact of dynamic and static contact using the strong alloy silver layer of anti-oxidant, anti-melting welding, anti-yaw damper ability now.
Before switch connection or disconnection, bounce usually occurs between seesaw body and support end, this is seesaw sheet
Small arc light reason is produced between body and support end.These small arc lights can aoxidize seesaw body and support end between the two
Surface is contacted, firm oxide layer not easy to wear and higher resistance is formed therebetween【Passivation layer】, and then cause switch electricity
The excessive, temperature rise of resistance is too high and causes accident.The method of generation electric arc between seesaw body and support end is solved at present, is mainly existed
Grease is smeared on switch seesaw body and associated part, grease is covered during switching manipulation by superficial attractive forces
Between seesaw body and support end, to which the degree of oxidation between seesaw body and support end can be reduced, requiring resistance
In the range of, temperature rise is in claimed range.The problem of existing be：【1】Grease has the negative effect of reinforcing electric arc, if consumption is not smart
The ablation degree of seesaw body, which will definitely be made, to be increased, and switch life is reduced on the contrary and triggers accident；【2】Solid grease is under low-temperature condition
Hardening, hinder switch seesaw component normal activity, make switch can not normal ON, while also influenceing toggle feel；【3】Oiling meeting
Increase the production costs such as cost of labor, material cost, production equipment cost.
The content of the invention
The main inventive purpose of the present invention is to provide a kind of simple in construction, and processing and manufacturing is easy, can effectively suppress switch
Occurs the switch of electric arc during being switched on or switched off.
Technical scheme used in the present invention is：It is a kind of to suppress the switch of electric arc, including shift knob, seesaw component, enter
Line terminals, actuator portion dress, seesaw keeper, static contact；
Seesaw component includes taking the shape of the letter U in the middle part of seesaw body, seesaw body, two side walls of the U-shaped in the middle part of seesaw body
Rolled over forms seesaw flanging respectively, and seesaw flanging is installed with moving contact；Lower surface in the middle part of seesaw body is supported on input terminal
Upper end, the front and back end in the middle part of seesaw body is provided with positioning convex；The positioning convex, which is stretched, is being located at sticking up on seesaw positioning seat
In plate locating slot；
Actuator portion dress includes drive rod, spring and transition piece；The upper end of transition piece is connected with shift knob, on transition piece
Receiving cavity provided with a cylindricality, the upper end of drive rod is located in receiving cavity, and the upper end of spring withstands on the chamber for accommodating cavity
Bottom, the lower end of spring is withstood on drive rod, the bottom for the U-shaped that the end of the lower end of drive rod is withstood in the middle part of seesaw body, driving
The upper end of bar is plugged in spring；
Before switch connection or disconnection, the remote of U-shaped in the middle part of actuator portion dress and seesaw body will touch with static contact
The side wall of that moving contact touched touches company.It is, before switch connection or disconnection, the dynamic and static of the company's of touching state is in originally
Contact be separated, another moving contact then to another static contact it is close and finally and another static contact touch company；Period sticks up
U-shaped in the middle part of plate body is pretended the company of touching close to the side wall for the dynamic/static contact side being separated from each other and the actuator portion,
The bottom of U-shaped of the lower end of drive rod in the middle part of seesaw body is towards close to another Slideslip of moving contact one.
In the moment of switch connection, another moving contact and another static contact of seesaw body, which are touched, to be connected, and seesaw body is consolidated
The kinetic energy of one end of the fixed moving contact almost can be with moment vanishing, if one end being separated with static contact of seesaw body does not have
The upper end for driving seesaw body to depart from input terminal is just easy to if having object stop, seesaw body and input terminal is caused
Bounced between upper end, electric arc will be produced between the upper end of such seesaw body and input terminal, oxidation is formed, and then just
Switch temperature rise can be caused too high.And this bounce produces small bounce between driving the mutually dynamic and static contact for the company of touching, so
The electric arc between dynamic and static contact will further be strengthened.The present invention, is not used on switch seesaw body and associated part
Grease is smeared, during switch connection, the remote of U-shaped in the middle part of the dress meeting of actuator portion and seesaw body will touch with static contact
Some component that the side wall of that moving contact touched is touched in company, that is, actuator portion dress can be in good time and in the middle part of seesaw body
The side wall for that moving contact mutually touched with static contact is touched company by the remote of U-shaped, so as to avoid or greatly reduce seesaw
Bounced between body and the upper end of input terminal, thus avoid or greatly reduce seesaw body and input terminal upper end it
Between electric arc；The spring between the dynamic and static contact mutually touched further can be avoided or greatly reduce simultaneously, so as to reduce or disappear
Except producing harmful electric arc between the dynamic and static contact mutually touched.And before the dynamic and static contact touching mutually touched, seesaw body
The moving contact of the other end is separated with corresponding static contact, and the electric arc between the two dynamic and static contacts being mutually disengaged is also little
In prior art.Therefore the present invention is not used in smearing grease on switch seesaw body and associated part, but can have
Effect suppresses the electric arc that switch occurs during being switched on or switched off, hence it is evident that improve the resistive life-span and fluoroscopic load life-span of switch.
Preferably, positioning runner of the lower end provided with left and right trend of the cavity wall of cavity is accommodated, the lower end of drive rod
Top is provided with and the spacing preiection that is slidably matched of positioning runner, and the outer end of spacing preiection is in switch connection or before disconnecting and seesaw
The respective side walls of U-shaped in the middle part of body, which are touched, to be connected.This preferred scheme, drive rod is that actuator portion is filled and the U-shaped in the middle part of seesaw body
Away from the side wall for that moving contact mutually touched with static contact to be touched to the component of company, when dynamic/static contact close to each other is touched
When together, due to the presence of spring, side wall of the U-shaped close to the touching together in the middle part of seesaw body can be with corresponding limit
The raised end in position is touched even without influenceing dynamic/static contact stably to touch together.This preferred scheme, with it is simple in construction,
Fabricate easy advantage.
Preferably, raised provided with transition between the bottom of the lower end of spacing preiection and drive rod.This preferred scheme, reliably
Property it is high.
Have elastic component preferably, the end of spacing preiection is fixed, the U in the middle part of the end face and seesaw body of flexible member
The side wall of shape is touched and connected together.This preferred scheme, the coefficient of elasticity of the flexible member is less than the coefficient of elasticity of spring, and bullet
The coefficient of elasticity of property element is preferably less than 1/5th of the coefficient of elasticity of spring.This preferred scheme, is conducive to improving suppression
The effect and stability of electric arc.
Preferably, before switch connection or disconnection, the remote of U-shaped in the middle part of transition piece and seesaw body will be with static contact
Mutually the side wall of that moving contact of touching touches company.Further, before switch connection or disconnection, the company's of touching state is in originally
Dynamic and static contact is separated, and another moving contact is then close and finally and another static contact touches company to another static contact；Phase
Between the side wall and transition piece close to the dynamic/static contact side being separated from each other of U-shaped in the middle part of seesaw body touch companys, driving
Move tactile towards close to another Slideslip of moving contact one, and at another in the bottom of U-shaped of the lower end of bar in the middle part of seesaw body
When head and the contact of another static contact, the side wall close to another moving contact of the U-shaped in the middle part of seesaw body mutually divides with transition piece
From the spacing between the side wall and transition piece close to another moving contact of the U-shaped in the middle part of seesaw body is 0.2 to 0.6 millimeter.
This preferred scheme, is realized by changing the angle of inclination of side wall of the U-shaped in the middle part of seesaw body, simple in construction, processing and manufacturing
Easily.
Preferably, fixation has elastic component on the lateral surface of the lower end of transition piece, transition piece is by flexible member and sticks up
The side wall of U-shaped in the middle part of plate body touches company.This preferred scheme, the coefficient of elasticity of flexible member is less than the elasticity system of spring
Number, and flexible member coefficient of elasticity be preferably spring coefficient of elasticity less than 1/5th.This preferred scheme, structure letter
List, reliable operation, suppression electric arc effect are good.Further preferably, the flexible member is an elastic ring, the lower end of transition piece
Lateral surface is provided with a fixing groove, and flexible member is fixed in flexible member fixing groove.This preferred scheme, simple in construction, processing system
Make easily.
Preferably, the spherical radius of moving contact is more than or equal to 2 millimeters and less than or equal to 5 millimeters.This preferred scheme, is applicable
In 10A and the switch of following electric current.The spherical radius of moving contact is less than the minimum value that national standard advises radius.According to
《GB5587-2003 Ag-based electrical contact basic configuration symbol for dimensionings and mark》Recommend, the sphere of the silver point of 10A and following electric current
Radius is 8 to 12 millimeters, and because the present invention can be avoided or greatly reduced between seesaw body bottom portion and input terminal upper end
Bounce and dynamic and static contact between bounce, so as to avoid or greatly reduce between seesaw body bottom portion and input terminal upper end
And there is electric arc between dynamic and static contact, greatly improve the reliability and stability of dynamic and static contact probe even, thus for 10A and with
The switch of lower electric current, the spherical radius of moving contact of the present invention is more than or equal to 2 millimeters and less than or equal to 5 millimeters, so on the one hand can
To ensure the mechanical contact point of the silver contact between dynamic and static contact in silver layer most thick region, the basal plane of particularly dynamic and static contact is not
When parallel, it also can guarantee that the silver layer of contact is most effectively utilized, under the premise of the silver layer consumption identical of contact, this design
The dynamic/static contact life-span can be greatly improved, on the other hand due to the reduction of moving contact spherical radius, seesaw component is also greatly reduced
Kinetic energy, be conducive to the high effect for suppressing electric arc.This preferred scheme, advantageously reduces processing and fabricating cost, improves dynamic and static contact
Life-span, that is, be conducive to improve switch service life.
Preferably, the silver point diameter of moving contact is less than or equal to 2.5 millimeters.This preferred scheme, it is adaptable to 10A and following electricity
The switch of stream, the silver point diameter of moving contact is less than the diameter that national standard is advised.According to《GB5587-2003 Ag-based electrical contact bases
This geomery symbol and mark》, it is proposed that 10A and following current switch do moving contact from the silver point of 3 millimeters of diameter, and utilize
Of the invention then silver point diameter can be contracted to 2.5 millimeters, the quality of such silver contact can reduce 40%, be lifted up so as to be greatly reduced
Moment kinetic energy before board component closure, and then the spring between dynamic and static contact can be reduced well, reduce the electric arc and burning of dynamic/static contact
Erosion.This preferred scheme, advantageously reduces the consumption of ag material, so as to reduce the processing and manufacturing cost of switch.
In summary, the beneficial effect brought of the present invention is：The present invention, is not used in switch seesaw body and associated
Grease is smeared on part, but it is possible to prevente effectively from or substantially reducing between seesaw body and the upper end of input terminal and dynamic and static tactile
There is bounce between head, so as to be prevented effectively from or suppress between seesaw body and the upper end of input terminal and dynamic and static
Occurs electric arc between contact, so as to effectively improve service life and reliability switch.The present invention, the sphere of moving contact
Radius can be less than the minimum value that national standard advises radius, and the silver point diameter of moving contact is less than the diameter that national standard is advised,
With simple in construction, the low advantage of processing and manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the structural representation of embodiment two；
Fig. 3 is the structural representation of embodiment three；
Fig. 4 is the comparison schematic diagram of the seesaw body and the seesaw body before improvement of embodiment three；
Fig. 5 is the structural representation of example IV.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment one：The present embodiment is the switch of 10A switches and following electric current,
As shown in figure 1, the present invention includes shift knob 1, seesaw component 2, input terminal 3, that actuator portion fills 4, seesaw is fixed
Position part 5, static contact 6；
Seesaw component 2 includes taking the shape of the letter U in the middle part of seesaw body 2.1, seesaw body, two of the U-shaped in the middle part of seesaw body
Side wall difference rolled over formation seesaw flanging 2.2, seesaw flanging is installed with moving contact 2.3；Lower surface support in the middle part of seesaw body
In the upper end of input terminal 3, the front and back end at the middle part of seesaw body 2.1 is provided with positioning convex 2.4；The positioning convex 2.4 is stretched
It is located in the seesaw locating slot 5.1 on seesaw positioning seat 5；
Actuator portion, which fills 4, includes drive rod 4.1, spring 4.2 and transition piece 4.3；The upper end of transition piece 4.3 and shift knob
1 is connected, and transition piece 4.3 is provided with a cylindrical receiving cavity 4.31, and the upper end 4.11 of drive rod is located at receiving cavity
In 4.31, the upper end of spring 4.2 withstands on the bottom of chamber for accommodating cavity 4.31, and the lower end of spring 4.2 is withstood on drive rod 4.1, is driven
The bottom for the U-shaped that the end of the lower end 4.12 of bar is withstood in the middle part of seesaw body, the upper end 4.11 of drive rod is plugged on spring 4.2
It is interior；
Before switch connection or disconnection, actuator portion fills the remote of the U-shaped in the middle part of 4 and seesaw body will be with the phase of static contact 6
The side wall of that moving contact 2.3 of touching touches company.It is, before switch connection or disconnection, the company's of touching state is in originally
Dynamic and static contact is separated, and another moving contact is then close and finally and another static contact touches company to another static contact；Phase
Between U-shaped in the middle part of seesaw body pretend close to the side wall for the dynamic/static contact side being separated from each other and the actuator portion it is tactile
Even, the bottom of U-shaped of the lower end of drive rod in the middle part of seesaw body is towards close to another Slideslip of moving contact one.
Preferably, the present embodiment accommodates positioning runner of the lower end provided with left and right trend of the cavity wall of cavity 4.31
4.32, the spacing preiection 4.13 that the top of the lower end 4.12 of drive rod is provided with and positioning runner 4.32 is slidably matched, spacing preiection
4.13 outer end is touched in the respective side walls of the U-shaped before switch connection or disconnection and in the middle part of seesaw body to be connected.Wherein, positioning runner
4.32 groove width is more than or equal to 2/5ths of the diameter for accommodating cavity 4.31, five less than or equal to the diameter for accommodating cavity 4.31
/ tri-, transition projection 4.14 is provided between the bottom of the lower end 4.12 of spacing preiection 4.13 and drive rod in addition.
Preferably, in the present embodiment, the spherical radius of moving contact 5 is more than or equal to 2 millimeters and less than or equal to 5 millimeters, moves
Contact（5）Silver point diameter be less than or equal to 2.5 millimeters.《GB5587-2003 Ag-based electrical contact basic configuration symbol for dimensionings and mark
Note》It is recommended that 10A and following current switch do moving contact from the silver point of 3 millimeters of diameter, the spherical radius of moving contact silver point is then 8
To 12 millimeters.And when utilizing the present invention, silver point diameter can then be reduced into 2.5 millimeters by 10A and following current switch, and moving contact
Spherical radius be more than or equal to 2 millimeters and less than or equal to 5 millimeters, so one side can substantially reduce the consumption of ag material, together
When moment kinetic energy before seesaw component closure can also be greatly reduced, and then can reduce the spring between dynamic and static contact well, reduce dynamic
The electric arc of static contact and ablation.
Embodiment two：
As shown in Fig. 2 the difference of embodiment two and embodiment one is, and in embodiment two, the end of spacing preiection 4.13
Portion, which is fixed, has elastic component 4.15, the coefficient of elasticity of the flexible member 4.15 be less than the coefficient of elasticity of spring 4.2 five/
One, the present embodiment, the coefficient of elasticity of the flexible member 4.15 is equal to 1/6th of the coefficient of elasticity of spring 4.2, elasticity member
The side wall of U-shaped in the middle part of the end face and seesaw body of part 4.15 touches connect together all the time.
Embodiment three：
As shown in figure 3, the present embodiment and the difference of embodiment one are, it is transition piece before switch connection or disconnection
U-shaped in the middle part of the lateral surface and seesaw body of 4.3 lower end away from by that moving contact 2.3 mutually touched with static contact 6
Side wall touches company；Namely before switch connection or disconnection, the dynamic and static contact that the company's of touching state is in originally is separated, another
Moving contact is then close and last and another static contact touches company to another static contact；U-shaped in the middle part of period seesaw body
Side wall and the company of touching of transition piece 4.3 close to the dynamic/static contact side being separated from each other, the lower end of drive rod 4.1 is in seesaw sheet
Another close Slideslip of moving contact one of bottom direction of U-shaped in the middle part of body, and in another moving contact and another static contact
During contact, the side wall and transition piece 4.3 close to another moving contact of the U-shaped in the middle part of seesaw body are separated, in seesaw body
Spacing between the side wall and transition piece 4.3 close to another moving contact of the U-shaped in portion is 0.2 to 0.6 millimeter.The present embodiment is
Realized by the angle of inclination for the side wall for changing the U-shaped in the middle part of seesaw body.As shown in figure 4, dotted portion is represented before improvement
Seesaw body structural representation, two side walls of U-shaped and the angle of horizontal plane in the middle part of seesaw body are 63 °, solid line portion
The angle of the two side walls and horizontal plane that are divided into the U-shaped in the middle part of the structural representation of the seesaw body after improving, seesaw body becomes
For 72 °, the dehiscing of U-shaped after improvement in the middle part of seesaw body is significantly less than improve before U-shaped in the middle part of seesaw body dehisce so that
During being switched on or switched off of switch, the side of transition piece lower end can be touched with two side walls of the U-shaped in the middle part of seesaw body to be connected,
It can avoid or substantially reduce whereby jumping between the upper end of input terminal and between dynamic/static contact in the middle part of seesaw body
It is dynamic.
Example IV：As shown in figure 5, the difference of example IV and embodiment three is, and in example IV, transition piece
The fixed 4.3.1 that has elastic component on the lateral surface of 4.3 lower end, flexible member 4.3.1 coefficient of elasticity is less than the bullet of spring 4.2
/ 5th of property coefficient, the present embodiment, the flexible member 4.3.1 of transition piece 4.3 coefficient of elasticity is less than the elasticity system of spring 4.2
Several 1/6th, side walls of the flexible member 4.3.1 all the time with the U-shaped in the middle part of seesaw body touches company.The flexible member
4.3.1 point flexible member that can be separately fixed at by two sections on the left and right side of the lower end of transition piece 4.3 is constituted, the present embodiment,
The flexible member 4.3.1 is an elastic ring, and the lateral surface of the lower end of transition piece 4.3 is provided with a flexible member fixing groove, elasticity
Element 4.3.1 is fixed in flexible member fixing groove.Example IV, when another moving contact and another static contact are contacted,
The side wall and flexible member 4.3.1 close to another moving contact of U-shaped in the middle part of seesaw body can keep contact condition, favorably
Cost is fabricated in reduction.
It is split to put the resistive life test of row into using the present invention, and the resistive life test result of the switch before improving has
Following comparison：When not applying oil fat on seesaw body and associated part is switched, the switch before improvement is in state
Mark resistive life test【40000 tests】Temperature rise can exceed 88K afterwards, be unqualified far above the temperature rise value of national Specification
Switch product.And it is of the invention, switch in the resistive life test of national standard【40000 tests】Highest temperature rise is in 26K or so afterwards, far
Less than the regulation of national standard.After 80,000 resistive life tests are carried out, maximum temperaturerise of the invention is also below national regulations
45K, be still qualified products.Therefore, the resistive life-span of the invention will be far above the resistive life-span of existing switch.Utilize this hair
The bright split fluoroscopic load life test result for putting the switch before row fluoroscopic load life test, and improvement into has following relation：
When not applying oil fat on seesaw body and associated part is switched, the switch before improvement is in one times of national standard of fluoroscopic load
Maximum temperaturerise can exceed 100K after longevity examination number of times, be substandard product.And the present invention is in one times of national standard longevity examination number of times of fluoroscopic load
Maximum temperaturerise is less than 20K afterwards, maximum temperaturerise is below 40k after five times of national standard longevity of fluoroscopic load examination number of times, wherein embodiment 3
Scheme maximum temperaturerise after 11 times of national standard longevity examination number of times of fluoroscopic load is below 35K, is qualified products.Therefore, this is utilized
Invention, can both substantially reduce the processing and manufacturing cost of switch, can also greatly improve the service life of switch.
Claims (3)
1. a kind of can suppress the switch of electric arc, including shift knob（1）, seesaw component（2）, input terminal（3）, actuator portion dress
（4）, seesaw keeper（5）, static contact（6）；
Seesaw component（2）Including seesaw body（2.1）, take the shape of the letter U in the middle part of seesaw body, two of the U-shaped in the middle part of seesaw body
Side wall difference rolled over formation seesaw flanging（2.2）, seesaw flanging is installed with moving contact（2.3）；Lower surface in the middle part of seesaw body
It is supported on input terminal（3）Upper end；
Actuator portion is filled（4）Including drive rod（4.1）, spring（4.2）And transition piece（4.3）；Transition piece（4.3）It is provided with one
The receiving cavity of cylindricality（4.31）,
It is characterized in that：Before switch connection or disconnection, actuator portion dress（4）With U-shaped in the middle part of seesaw body away from will with it is quiet
Contact（6）That moving contact mutually touched（2.3）Side wall touch company；
Wherein, cavity is accommodated（4.31）Cavity wall lower end provided with left and right trend positioning runner（4.32）, the lower end of drive rod
（4.12）Top be provided with and positioning runner（4.32）The spacing preiection being slidably matched（4.13）, spacing preiection（4.13）End
Fixation has elastic component（4.15）, spacing preiection（4.13）Outer end switch connection or disconnect before pass through flexible member（4.15）
End face and seesaw body in the middle part of U-shaped respective side walls touch connect；
Or, before switch connection or disconnection, transition piece（4.3）Remote with the U-shaped in the middle part of seesaw body will be with static contact（6）
That moving contact mutually touched（2.3）Side wall touch company, transition piece（4.3）Lower end fix have elastic component（4.3.1）, mistake
Cross part（4.3）Pass through flexible member（4.3.1）Company is touched with the side wall of the U-shaped in the middle part of seesaw body；
Spacing preiection（4.13）With the lower end of drive rod（4.12）Bottom between it is raised provided with transition（4.14）；
Before switch connection or disconnection, the dynamic and static contact that the company's of touching state is in originally is separated, and another moving contact is then to another
Individual static contact is close and last and another static contact touches company；U-shaped in the middle part of period seesaw body close to being separated from each other
The side wall and transition piece of dynamic/static contact side（4.3）The company of touching, drive rod（4.1）U of the lower end in the middle part of seesaw body
Stuck up towards another close Slideslip of moving contact one, and when another moving contact and another static contact are contacted the bottom of shape
The side wall and transition piece close to another moving contact of U-shaped in the middle part of plate body（4.3）It is separated；Moving contact（5）Sphere half
Footpath is more than or equal to 2 millimeters and less than or equal to 5 millimeters.
2. according to claim 1 can suppress the switch of electric arc, it is characterized in that：In another moving contact and another stationary contact
During head contact, the side wall and transition piece close to another moving contact of the U-shaped in the middle part of seesaw body（4.3）Between spacing be
0.2 to 0.6 millimeter.
3. according to claim 1 or 2 can suppress the switch of electric arc, it is characterized in that：Moving contact（5）Silver point diameter be less than
Equal to 2.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318984.2A CN105097347B (en) | 2015-06-11 | 2015-06-11 | The switch of electric arc can be suppressed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318984.2A CN105097347B (en) | 2015-06-11 | 2015-06-11 | The switch of electric arc can be suppressed |
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| Publication Number | Publication Date |
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| CN105097347A CN105097347A (en) | 2015-11-25 |
| CN105097347B true CN105097347B (en) | 2017-09-26 |
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| CN106298333B (en) * | 2016-10-24 | 2019-03-01 | 浙江公元电器有限公司 | A kind of wane type switch |
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| ITMI20012002A1 (en) * | 2001-09-27 | 2003-03-27 | Vimar Spa | COMPRESSION DRIVE MECHANISM USING TILTING BUTTON SWITCHES SWITCH SWITCHES AND SIMILAR |
| TWI452588B (en) * | 2011-10-17 | 2014-09-11 | Board Tech Electronic Co Ltd | Switchgear |
| CN202855602U (en) * | 2012-08-11 | 2013-04-03 | 浙江正泰建筑电器有限公司 | Switch current carrying mechanism |
| JP2014175181A (en) * | 2013-03-08 | 2014-09-22 | Omron Corp | Switching device |
| CN104637720A (en) * | 2015-01-19 | 2015-05-20 | 慈溪市鸣鹤兴华电器配件厂 | Seesaw switch |
| CN204740975U (en) * | 2015-06-11 | 2015-11-04 | 宁波公牛电器有限公司 | Switch that can restrain electric arc |
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