CN110993390A - Switch structure with switching-on and switching-off assisting and buffering functions - Google Patents
Switch structure with switching-on and switching-off assisting and buffering functions Download PDFInfo
- Publication number
- CN110993390A CN110993390A CN201911156416.1A CN201911156416A CN110993390A CN 110993390 A CN110993390 A CN 110993390A CN 201911156416 A CN201911156416 A CN 201911156416A CN 110993390 A CN110993390 A CN 110993390A
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- Prior art keywords
- contact
- conductive seat
- conductive
- spring
- moving contact
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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
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- Push-Button Switches (AREA)
Abstract
The invention discloses a switch structure with switching-on and switching-off assisting and buffering functions, which comprises a switch main body, a static contact, a moving contact, a conductive contact finger, a conductive seat, a switching-off auxiliary spring, a switching-on auxiliary spring and a swing rod, wherein the switch main body is provided with a fixed contact and a fixed contact; the switch is characterized in that the fixed contact is fixedly arranged on the switch main body, the conductive seat is fixedly arranged on the switch main body, the moving contact is movably arranged in the conductive seat in a penetrating mode, the inner end of the moving contact is opposite to the fixed contact, the conductive contact finger is arranged on the contact surface of the moving contact and the conductive seat, the outer end of the moving contact is hinged to one end of the swing rod, and the other end of the swing rod is rotatably arranged on the switch main body. Because the opening auxiliary spring and the closing auxiliary spring are arranged between the moving contact and the conductive seat, the moving contact and the static contact are separated easily, and the moving contact and the static contact are contacted more softly during closing.
Description
Technical Field
The invention relates to a switch device, in particular to a switch structure with switching-on and switching-off assisting and buffering functions.
Background
The switch structure is commonly used in electrical switch equipment, such as a load switch, a quick grounding switch and even a circuit breaker, and is used for realizing the connection and disconnection of a loop. Switch structures typically include a moving contact assembly and a stationary contact assembly to perform circuit closing and opening functions. The moving contact and the static contact of the electric switch are matched and generally inserted into the static contact through the movement of the moving contact, and the biggest problem existing in the existing structure is that when the switch is switched on (off), the combination of the moving contact and the static contact lacks necessary buffering and additional force in the initial stage, overshoot is easily generated at the tail end of the switch on (off) to cause damage of the moving contact, and the switch does not have enough auxiliary acting force in the initial stage of the switch on (off), so that the switch can realize the separation of the moving contact and the static contact by using larger force and obtain corresponding speed.
Disclosure of Invention
The invention aims to provide a switch structure with soft contact between a moving contact and a fixed contact and with switching-on and switching-off assisting and buffering functions.
In order to achieve the purpose, the technical solution of the invention is as follows:
the invention relates to a switch structure with switching-on and switching-off assisting and buffering functions, which comprises a switch main body, a fixed contact, a movable contact, a conductive contact finger, a conductive seat, a switching-off auxiliary spring, a switching-on auxiliary spring and a swing rod, wherein the fixed contact is fixed on the switch main body; the switch comprises a switch main body, a fixed contact, a conductive seat, a movable contact, a conductive contact finger, a swing rod and a switch main body, wherein the fixed contact is fixedly arranged on the switch main body, the conductive seat is fixedly arranged on the switch main body and is opposite to the fixed contact, the middle part of the movable contact movably penetrates in the conductive seat, the inner end of the movable contact is opposite to the fixed contact and can be inserted into the fixed contact, the conductive contact finger is arranged in the conductive seat and is positioned on the contact surface of the movable contact and the conductive seat, the outer end of; and an opening auxiliary spring and a closing auxiliary spring are arranged between the moving contact and the conductive seat.
The middle part of the conductive seat is provided with a cavity, two ends of the conductive seat are respectively provided with a through hole, and the aperture of the through hole at the inner side of the conductive seat is larger than that of the through hole at the outer side of the conductive seat; the moving contact is a step cylinder, the outer end of the moving contact is provided with a flange, a large cylinder of the moving contact is movably sleeved in the through hole at the inner side of the conductive seat, and a small cylinder of the moving contact is movably sleeved in the through hole at the outer side of the conductive seat; the auxiliary opening spring is sleeved on the moving contact and positioned in the cavity of the conductive seat, and two ends of the auxiliary opening spring can respectively abut against the step surface of the moving contact and the end wall of the cavity of the conductive seat; the auxiliary closing spring is sleeved on the movable contact, and two ends of the auxiliary closing spring can respectively abut against the outer wall of the conductive seat and the flange of the movable contact.
The invention also includes a spring seat; the spring seat is fixedly installed on the switch main body and located on the outer side of the conductive seat, and the closing auxiliary spring is sleeved in a middle hole of the spring seat in a clearance mode.
After the scheme is adopted, the switch comprises the switch main body, the fixed contact, the moving contact, the conductive contact finger, the conductive seat, the opening auxiliary spring and the closing auxiliary spring, wherein the opening auxiliary spring and the closing auxiliary spring are arranged between the moving contact and the conductive seat, so that the moving contact and the fixed contact are separated easily, and the moving contact and the fixed contact are contacted more softly during closing.
The invention is further described with reference to the following figures and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of the present invention in a closing state (the closing buffering action of the closing auxiliary spring is finished, and the closing auxiliary spring is in a maximum compression state);
FIG. 2 is a schematic diagram of the opening process of the present invention (the closing buffer of the closing auxiliary spring is finished and is in the maximum compression state);
FIG. 3 is a schematic diagram of the present invention in the opening state (the buffering action of the opening auxiliary spring is finished, and the maximum compression state is reached);
fig. 4 is a schematic diagram of the present invention during a closing process (the closing auxiliary spring starts to be compressed and acts as a buffer).
Detailed Description
As shown in fig. 1-4, the invention relates to a switch structure with switching-on and switching-off assisting and buffering functions, which comprises a switch main body 1, a static contact 2, a moving contact 3, a conductive contact finger 4, a conductive seat 5, a switching-off auxiliary spring 6, a switching-on auxiliary spring 7 and a swing rod 8.
The switch is characterized in that the static contact 2 is fixedly arranged on the switch main body 1, the conductive seat 5 is fixedly arranged on the switch main body 1 and is opposite to the static contact 2, the middle part of the moving contact 3 is movably arranged in the conductive seat 5 in a penetrating way, the inner end of the moving contact 3 is opposite to the static contact 2 and can be inserted into the static contact 2, the conductive contact finger 4 is arranged in the conductive seat 5, the conductive contact finger 4 is positioned on the contact surface of the moving contact 3 and the conductive seat 5, the outer end of the moving contact 3 is hinged with one end of the swing rod 8, and the other end of the swing rod 8.
The middle part of the conductive seat 5 is provided with a cavity 51, through holes 52 and 53 are respectively arranged at two ends of the conductive seat 51, and the aperture of the through hole 52 at the inner side of the conductive seat 5 is larger than that of the through hole 53 at the outer side of the conductive seat 5; the moving contact 3 is a step column, and the outer end of the moving contact is provided with a flange 31, the large column 32 of the moving contact is movably sleeved in the through hole 52 at the inner side of the conductive seat 51, and the small column 33 of the moving contact is movably sleeved in the through hole 53 at the outer side of the conductive seat 5; the opening auxiliary spring 6 is sleeved on the moving contact 3 and is positioned in the cavity 51 of the conductive seat 5, and two ends of the opening auxiliary spring 6 can respectively abut against the stepped surface 34 of the moving contact 3 and the end wall of the cavity 51 of the conductive seat 5; the closing auxiliary spring 7 is sleeved on the moving contact 3, and two ends of the closing auxiliary spring 7 can respectively abut against the outer wall of the conductive seat 5 and the flange 31 of the moving contact 3.
The working principle of the invention is as follows:
the opening auxiliary spring 6 plays a role in buffering when the switch is opened (as shown in fig. 2), the opening auxiliary spring 6 plays a role in assisting at the initial stage when the switch is closed (as shown in fig. 3), the opening auxiliary spring is compressed after the opening is finished, and has a force for applying a closing direction to the moving contact, and the opening auxiliary spring plays a role in assisting when the switch is closed. The auxiliary closing spring 7 has a buffering function (as shown in fig. 4) when the switch is closed, an assisting function (as shown in fig. 1) at the initial stage when the switch is opened, and the auxiliary closing spring 7 is compressed after the switch is closed (in a closed state) to apply a force in the opening direction to the movable contact 3, and has an assisting function when the switch is opened.
The symbols in the figure:
d1- -free state of auxiliary closing spring; d1' - -a maximum state of the closing assist spring;
d2 brake opening auxiliary spring free state; d2-maximum state of the opening auxiliary spring;
s- - -moving contact stroke; s1-the opening auxiliary spring buffers the stroke, S1= D2-D2';
s2- -buffer stroke of closing auxiliary spring, S2= D1-D1'
T-contact stroke of the moving contact and the fixed contact of the switch.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (3)
1. The utility model provides a switch structure with divide-shut brake helping hand and buffering which characterized in that: the switch comprises a switch main body, a static contact, a moving contact, a conductive contact finger, a conductive seat, an auxiliary opening spring, an auxiliary closing spring and a swing rod; the switch comprises a switch main body, a fixed contact, a conductive seat, a movable contact, a conductive contact finger, a swing rod and a switch main body, wherein the fixed contact is fixedly arranged on the switch main body, the conductive seat is fixedly arranged on the switch main body and is opposite to the fixed contact, the middle part of the movable contact movably penetrates in the conductive seat, the inner end of the movable contact is opposite to the fixed contact and can be inserted into the fixed contact, the conductive contact finger is arranged in the conductive seat and is positioned on the contact surface of the movable contact and the conductive seat, the outer end of; and an opening auxiliary spring and a closing auxiliary spring are arranged between the moving contact and the conductive seat.
2. The switch structure with switching-on and switching-off power assistance and buffering of claim 1, characterized in that: the middle part of the conductive seat is provided with a cavity, two ends of the conductive seat are respectively provided with a through hole, and the aperture of the through hole at the inner side of the conductive seat is larger than that of the through hole at the outer side of the conductive seat; the moving contact is a step cylinder, the outer end of the moving contact is provided with a flange, a large cylinder of the moving contact is movably sleeved in the through hole at the inner side of the conductive seat, and a small cylinder of the moving contact is movably sleeved in the through hole at the outer side of the conductive seat; the auxiliary opening spring is sleeved on the moving contact and positioned in the cavity of the conductive seat, and two ends of the auxiliary opening spring can respectively abut against the step surface of the moving contact and the end wall of the cavity of the conductive seat; the auxiliary closing spring is sleeved on the movable contact, and two ends of the auxiliary closing spring can respectively abut against the outer wall of the conductive seat and the flange of the movable contact.
3. The switch structure with switching-on and switching-off power assistance and buffering of claim 2, characterized in that: the spring seat is also included; the spring seat is fixedly installed on the switch main body and located on the outer side of the conductive seat, and the closing auxiliary spring is sleeved in a middle hole of the spring seat in a clearance mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156416.1A CN110993390A (en) | 2019-11-22 | 2019-11-22 | Switch structure with switching-on and switching-off assisting and buffering functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156416.1A CN110993390A (en) | 2019-11-22 | 2019-11-22 | Switch structure with switching-on and switching-off assisting and buffering functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110993390A true CN110993390A (en) | 2020-04-10 |
Family
ID=70085930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911156416.1A Withdrawn CN110993390A (en) | 2019-11-22 | 2019-11-22 | Switch structure with switching-on and switching-off assisting and buffering functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110993390A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034300U (en) * | 2011-04-26 | 2011-11-09 | 广州白云电器设备股份有限公司 | Breaker of gas insulated metal enclosed switchgear |
| CN202917370U (en) * | 2012-10-30 | 2013-05-01 | 江苏精科智能电气股份有限公司 | Three-position isolation and earthing switch of gas insulated metal-enclosed switchgear |
| CN104347310A (en) * | 2014-08-22 | 2015-02-11 | 重庆大学 | Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device |
| CN104810192A (en) * | 2015-05-08 | 2015-07-29 | 苏州奥然日用品有限公司 | Vacuum circuit breaker closing lock device |
| CN204668177U (en) * | 2015-06-05 | 2015-09-23 | 沈阳东牧电器制造有限公司 | A kind of operation mechanism for high voltage switch |
| CN105810495A (en) * | 2016-04-27 | 2016-07-27 | 维龙（镇江）电工研究院有限公司 | Direct-acting three-position load switch |
| CN107887184A (en) * | 2017-11-23 | 2018-04-06 | 许继（厦门）智能电力设备股份有限公司 | Earthed switch contact |
| CN209591908U (en) * | 2019-04-28 | 2019-11-05 | 无锡市锡山湖光电器有限公司 | SF6 breaker air blowing type arc-chutes |
-
2019
- 2019-11-22 CN CN201911156416.1A patent/CN110993390A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034300U (en) * | 2011-04-26 | 2011-11-09 | 广州白云电器设备股份有限公司 | Breaker of gas insulated metal enclosed switchgear |
| CN202917370U (en) * | 2012-10-30 | 2013-05-01 | 江苏精科智能电气股份有限公司 | Three-position isolation and earthing switch of gas insulated metal-enclosed switchgear |
| CN104347310A (en) * | 2014-08-22 | 2015-02-11 | 重庆大学 | Permanent magnet spring mechanism switch of divided conductor power transmission line ice melting device |
| CN104810192A (en) * | 2015-05-08 | 2015-07-29 | 苏州奥然日用品有限公司 | Vacuum circuit breaker closing lock device |
| CN204668177U (en) * | 2015-06-05 | 2015-09-23 | 沈阳东牧电器制造有限公司 | A kind of operation mechanism for high voltage switch |
| CN105810495A (en) * | 2016-04-27 | 2016-07-27 | 维龙（镇江）电工研究院有限公司 | Direct-acting three-position load switch |
| CN107887184A (en) * | 2017-11-23 | 2018-04-06 | 许继（厦门）智能电力设备股份有限公司 | Earthed switch contact |
| CN209591908U (en) * | 2019-04-28 | 2019-11-05 | 无锡市锡山湖光电器有限公司 | SF6 breaker air blowing type arc-chutes |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |
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| WW01 | Invention patent application withdrawn after publication |