CN102426945A - Switching device with lever ratio - Google Patents
Switching device with lever ratio Download PDFInfo
- Publication number
- CN102426945A CN102426945A CN2011102792533A CN201110279253A CN102426945A CN 102426945 A CN102426945 A CN 102426945A CN 2011102792533 A CN2011102792533 A CN 2011102792533A CN 201110279253 A CN201110279253 A CN 201110279253A CN 102426945 A CN102426945 A CN 102426945A
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- CN
- China
- Prior art keywords
- contact
- rocking arm
- lever ratio
- rotating shaft
- switching device
- 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.)
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a switching device with lever ratio, comprising a shell, a rocker arm, a rotating shaft, a contact support, a moving contact bridge and a fixed contact, wherein the rocker arm is rotatably arranged on the rotating shaft; one end of the rocker arm is a driving end and the other end of the rocker arm is a driven end; the contact support is in contact connection with the driven end of the rocker arm driving the contact support to move; the side of the contact support, which is close to the fixed contact, is provided with the moving contact bridge; and the lever ratio of the distance b between the driven end of the rocker arm and the center of the rotating shaft and the distance a between the driving end of the rocker arm and the center of the rotating shaft is more than 1. The switching device has the beneficial effects of strong breaking capability, long service life, simple structure, low cost and convenience in installation.
Description
Technical field
The present invention relates to a kind of switching device that has lever ratio.
Technical background
The conversion equipment of existing contactor is to move with main body when changing; Its stroke ratio is 1:1; Cause in the stroke of contactor adhesive phase transition device before conversion the needs accumulation just can make the contactor adhesive, make that the contactor energy consumption is big, correspondingly have power loss and thermal radiation than macro-energy.And there is complex structure in existing conversion equipment, the shortcoming that cost is high.
Summary of the invention
The present invention will solve that existing contactor exists that energy consumption is big, complex structure, problem that cost is high, and the switching device that has lever ratio that a kind of cost is low, simple in structure, breaking capacity is strong is provided.
Technical scheme of the present invention:
A kind of switching device that has lever ratio; Comprise shell, rocking arm, rotating shaft, contact support, movable contact bridge, fixed contact; Said rocking arm is rotatable to be installed in the rotating shaft; One end of said rocking arm is a drive end, and its other end is a Partner, and said contact support is connected with the Partner contact of the rocking arm that drives its motion; Said contact support is connected with the movable contact bridge near the fixed contact side, it is characterized in that: the Partner of said rocking arm to the drive end of the distance b at rotating shaft center and said rocking arm arrive the rotating shaft center apart from the ratio of the lever ratio b:a of a greater than 1.
Further, the proportion of the lever ratio b:a of said rocking arm is 1 <b:a≤5.
Further, said rocking arm has one and above drive end and one and above Partner.
Further, said contact support and rocking arm are resetted by back-moving spring, and the upper end of said back-moving spring is connected on the keeper that is fixed on the shell, and its lower end is connected on the end face of contact support.
Further, the Partner of said rocking arm is that tangent transmission contact is connected with the contact support.
Further, said movable contact bridge and said fixed contact are over against setting.
Further, said rotating shaft and shell are integrative-structures.
Perhaps, said rotating shaft is to be fixedly connected on the shell.
The present invention is different to the distance at rotating shaft center of Partner and drive end through rocking arm; Promptly the lever ratio through making rocking arm is greater than 1; The transmission ratios that realizes clearance between open contacts and stroke is greater than 1; Amplify the shift position that contact is supported with this, the ability that the increase of clearance between open contacts makes the switch disjunction start big electric current strengthens.And the transmission ratios of clearance between open contacts and stroke can be provided with as required.
Movable contact bridge of the present invention is when the rocking arm drive end is pressed with the contact of fixed contact, and its Partner drives the contact support and moves downward, and the movable contact bridge that contact is supported contacts with fixed contact; And the movable contact bridge is under the effect of its elastic force, to drive contact support and rocking arm through back-moving spring to reset and make movable contact bridge disengaging fixed contact with the disconnection of fixed contact, and this construction of switch is simple, cost is low, is convenient to installation.
Beneficial effect of the present invention: breaking capacity is strong, the life-span is long, simple in structure, cost is low, be convenient to install.
Description of drawings
Fig. 1 is the structural representation of movable contact bridge of the present invention when contacting with fixed contact.
Structural representation when Fig. 2 is movable contact bridge of the present invention and fixed contact disengaging.
Embodiment
With reference to accompanying drawing 1, Fig. 2; A kind of switching device that has lever ratio; Comprise shell 7, rocking arm 1, rotating shaft 6, contact support 2, movable contact bridge 4, fixed contact 5, said rocking arm 1 rotatable being installed in the rotating shaft 6, an end of said rocking arm 1 is a drive end 11; Its other end is a Partner 12; Said contact supports 2 to be connected with Partner 12 contacts of the rocking arm 1 that drives its motion, and said contact support 2 is connected with movable contact bridge 4 near fixed contact 5 sides, the drive end 11 that the Partner 12 of said rocking arm 1 arrives distance b and the said rocking arm 1 at rotating shaft 6 centers arrive rotating shaft 6 centers apart from the ratio of the lever ratio b:a of a greater than 1.
The proportion of the lever ratio b:a of said rocking arm 1 is 1 <b:a≤5.
Said rocking arm 1 has one and above drive end and one and above Partner.
Said contact support 2 is resetted by back-moving spring 3 with rocking arm 1, and the upper end of said back-moving spring 3 is connected on the keeper 8 that is fixed on the shell 7, and its lower end is connected on the end face of contact support 2.
The Partner 12 of said rocking arm 1 is that tangent transmission contact is connected with contact support 2.
Said movable contact bridge 4 is over against setting with said fixed contact 5.
Said rotating shaft 6 is integrative-structures with shell 7.Also can be that said rotating shaft 6 is to be fixedly connected on the shell 7.
The present invention is different to the distance at rotating shaft 6 centers of Partner 12 and drive end 11 through rocking arm 1; Promptly the lever ratio through making rocking arm 1 is greater than 1; The transmission ratios that realizes clearance between open contacts and stroke is greater than 1; Amplify contact with this and support 2 shift position, the ability that the increase of clearance between open contacts makes the switch disjunction start big electric current strengthens.And the transmission ratios of clearance between open contacts and stroke can be provided with as required.
The lever ratio b:a apart from a of the Partner 12 of the said rocking arm 1 in the present embodiment to the drive end 11 of the distance b at rotating shaft center and said rocking arm 1 to the rotating shaft center approximates 2.5 times.When rocking arm 1 drive end 11 was pressed, the distance that Partner 12 vertically moves was about 2.5 times of drive end 11 distance of vertically moving.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Protection scope of the present invention should not be regarded as and only limit to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (8)
1. switching device that has lever ratio; Comprise shell, rocking arm, rotating shaft, contact support, movable contact bridge, fixed contact; Said rocking arm is rotatable to be installed in the rotating shaft; One end of said rocking arm is a drive end, and its other end is a Partner, and said contact support is connected with the Partner contact of the rocking arm that drives its motion; Said contact support is connected with the movable contact bridge near the fixed contact side, it is characterized in that: the Partner of said rocking arm to the drive end of the distance b at rotating shaft center and said rocking arm arrive the rotating shaft center apart from the ratio of the lever ratio b:a of a greater than 1.
2. a kind of switching device that has lever ratio according to claim 1 is characterized in that: the proportion of the lever ratio b:a of said rocking arm is 1 <b:a≤5.
3. a kind of switching device that has lever ratio according to claim 1 and 2 is characterized in that: said rocking arm has one and above drive end and one and above Partner.
4. a kind of switching device that has lever ratio according to claim 3; It is characterized in that: said contact support and rocking arm are resetted by back-moving spring; The upper end of said back-moving spring is connected on the keeper that is fixed on the shell, and its lower end is connected on the end face of contact support.
5. a kind of switching device that has lever ratio according to claim 4 is characterized in that: the Partner of said rocking arm is that tangent transmission contact is connected with the contact support.
6. a kind of switching device that has lever ratio according to claim 5 is characterized in that: said movable contact bridge and said fixed contact are over against setting.
7. a kind of switching device that has lever ratio according to claim 6, it is characterized in that: said rotating shaft and shell are integrative-structures.
8. a kind of switching device that has lever ratio according to claim 6, it is characterized in that: said rotating shaft is to be fixedly connected on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102792533A CN102426945A (en) | 2011-09-20 | 2011-09-20 | Switching device with lever ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102792533A CN102426945A (en) | 2011-09-20 | 2011-09-20 | Switching device with lever ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102426945A true CN102426945A (en) | 2012-04-25 |
Family
ID=45960912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102792533A Pending CN102426945A (en) | 2011-09-20 | 2011-09-20 | Switching device with lever ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102426945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198943A (en) * | 2013-04-09 | 2013-07-10 | 浙江正泰电器股份有限公司 | Switching device with amplified clearance between open contacts according to needs |
| CN105190815A (en) * | 2013-04-24 | 2015-12-23 | 西门子公司 | Drive for a switching device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350853Y (en) * | 1998-11-12 | 1999-11-24 | 廖天福 | Timer switch device |
| CN1452204A (en) * | 2002-04-16 | 2003-10-29 | 正泰集团公司 | Mechanism for operating small circuit breaker |
| CN101017723A (en) * | 2006-12-01 | 2007-08-15 | 肖新凯 | The electromagnetic mechanism with the lever and the electro-mechanic product using same |
| CN101752133A (en) * | 2008-12-16 | 2010-06-23 | 西门子公司 | Switching device for indirectly switching on or off switch position |
| CN101958211A (en) * | 2009-12-09 | 2011-01-26 | 上海诺雅克电气有限公司 | Circuit-breaker automatic closing contact device with high breaking capacity |
| CN202230896U (en) * | 2011-09-20 | 2012-05-23 | 上海诺雅克电气有限公司 | Switch device with lever ratio |
-
2011
- 2011-09-20 CN CN2011102792533A patent/CN102426945A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350853Y (en) * | 1998-11-12 | 1999-11-24 | 廖天福 | Timer switch device |
| CN1452204A (en) * | 2002-04-16 | 2003-10-29 | 正泰集团公司 | Mechanism for operating small circuit breaker |
| CN101017723A (en) * | 2006-12-01 | 2007-08-15 | 肖新凯 | The electromagnetic mechanism with the lever and the electro-mechanic product using same |
| CN101752133A (en) * | 2008-12-16 | 2010-06-23 | 西门子公司 | Switching device for indirectly switching on or off switch position |
| CN101958211A (en) * | 2009-12-09 | 2011-01-26 | 上海诺雅克电气有限公司 | Circuit-breaker automatic closing contact device with high breaking capacity |
| CN202230896U (en) * | 2011-09-20 | 2012-05-23 | 上海诺雅克电气有限公司 | Switch device with lever ratio |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198943A (en) * | 2013-04-09 | 2013-07-10 | 浙江正泰电器股份有限公司 | Switching device with amplified clearance between open contacts according to needs |
| CN105190815A (en) * | 2013-04-24 | 2015-12-23 | 西门子公司 | Drive for a switching device |
| CN105190815B (en) * | 2013-04-24 | 2018-02-16 | 西门子公司 | Driver for switchgear |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120425 |