CN102683119A - Motor-driven ultrahigh current relay - Google Patents
Motor-driven ultrahigh current relay Download PDFInfo
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- CN102683119A CN102683119A CN2012100018542A CN201210001854A CN102683119A CN 102683119 A CN102683119 A CN 102683119A CN 2012100018542 A CN2012100018542 A CN 2012100018542A CN 201210001854 A CN201210001854 A CN 201210001854A CN 102683119 A CN102683119 A CN 102683119A
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- binding post
- nut
- conduction
- screw mandrel
- insulating support
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Abstract
The invention discloses a motor-driven ultrahigh current relay, which comprises an insulating bracket. The insulating bracket is connected with at least a first group of connecting terminals. The first group of connecting terminals comprises first connecting terminals, second connecting terminals and third connecting terminals, which are arranged at intervals, wherein the first, second and third connecting terminals all penetrate through the insulating bracket; a conductive nut is arranged at the other end of each connecting terminal; the conductive nuts are coaxially arranged; an insulating shaft penetrates through each conductive nut; a first conductive screw rod is connected to the insulating shaft, and is connected with the conductive nut on one connecting terminal; a shaft coupling is connected to the end part of the insulating shaft, and can rotate together with the insulating shaft and move relatively to the insulating shaft; and the other end of the shaft coupling is connected with the output end of a motor speed reducing mechanism. A motor unidirectionally moves each time, the problem of jitter is avoided, arc discharge phenomena can be reduced, and breakover current higher than 100A can be easily obtained.
Description
Technical field
The invention belongs to electric elements, be specifically related to a kind of switch relay that is suitable for big electric current.
Background technology
Traditional mechanical formula relay generally all adopts the solenoid adhesive and discharges armature, removes to contact other fixed contact through the moving contact on the action drive armature of armature, thereby realizes the function of relay.
Because adopt the some contact, this type of relay is difficult to super-large current (more than 100A) application scenario.Heating of contact was serious when other shortcoming comprised big current work; Action noise is big; Shake can take place and play arcing to connect in the contact action; Coil windings needs the bigger electric current of keeping, and does not have intermediate stable state etc.
Summary of the invention
The object of the present invention is to provide a kind of Motor Drive super-large current relay, to address the above problem.
Technical scheme of the present invention is: Motor Drive super-large current relay; It comprises insulating support; Insulating support is connected with at least the first set of connections terminal, and the said first set of connections terminal comprises first binding post that is provided with at interval, second binding post and the 3rd binding post; First binding post, second binding post and the 3rd binding post all pass insulating support, and the other end of each binding post is provided with the conduction nut, the coaxial setting of each conduction nut; Insulation axle passes each conduction nut, is connected with the first conduction screw mandrel on the insulation axle, and the nut that conducts electricity on the first conduction screw mandrel and one of them binding post is connected; The insulation shaft end be connected with can with together rotate, the shaft coupling that can relatively move again, the other end of shaft coupling is connected with the output of motor decelerating mechanism.
Said shaft coupling comprises sleeve, and sleeve one end is connected with the output of motor decelerating mechanism, and the radial section of another section of sleeve is shaped as and comprises arc section, and the two ends of arc section are straightways.
The length of the first conduction screw mandrel realizes on second binding post on the second conduction nut and first binding post that the first conduction nut is connected conducting or realizes on second binding post that second conducts electricity on nut and the 3rd binding post and the 3rd to conduct electricity nut and be connected conducting.
Insulating support is connected with the second set of connections terminal, and the second set of connections terminal comprises the 4th binding post that is provided with at interval, the 5th binding post and the 6th binding post; The 4th binding post, the 5th binding post and the 6th binding post all pass insulating support, and the other end of each binding post is provided with the conduction nut, the coaxial setting of each conduction nut; The insulation axle passes each conduction nut; Insulation axle is provided with the second conduction screw mandrel, and the second conduction screw mandrel is connected with conduction nut on one of them binding post.
The length of the second conduction screw mandrel realizes on the 5th binding post on the 5th conduction nut and the 4th binding post that the 4th conduction nut is connected conducting or realizes on the 5th binding post that the 5th conducts electricity on nut and the 6th binding post and the 6th to conduct electricity nut and be connected conducting.
Also be provided with the displacement transducer of monitoring insulation axial displacement on the insulating support.
Also be provided with monitoring insulation axial displacement limit switch on the insulating support.
The present invention adopts on the insulation axle at least one section conduction screw mandrel is set, through the conduction nut on screw mandrel and the binding post engagement, control the break-make between two terminals.
Because the nut screw mandrel is connected to many figure threaded engagement; The point that contact area is compared traditional relay contacts much bigger; And the interlock dynamics is bigger, so contact resistance is very little, can be easy to the conducting electric current of accomplishing that 100A is above; In practical application, the conducting electric current of 1000A also has no problem.
Traditional relay can not be suitable for big electric current and use that to also have a reason be exactly heat dissipation problem, because some contact contact resistance is big, and can serious heating during super-high-current.Because the contact all is fixed on the relatively thinner reed, heat is difficult to dissipate.The result of accumulation of heat burns the contact exactly.The nut screw mandrel that the said super-large current relay of the present invention adopts is copper large-scale firmware, and big than the contact thermal capacity of traditional relay, heat conduction is fast.Because contact resistance is little, the heat that same electric current produces is very little.Even under very big current conditions, having more heat transfer to produce also can dissipate rapidly.
The said super-large current relay of the present invention adopts the Motor Drive mode, through one or more copper wire bar rotation of motor drives, to realize being connected of screw mandrel and nut.Power of motor is less demanding, only needs the motor of 3W just much of that with respect to 100A conducting electric current.The machine operation noise is far smaller than the sound of the moment adhesive of traditional high-current relay.
There is very serious jitter problem by the spring pulling in the moving contact of traditional relay when action, this also is the major reason that causes the contact arcing and ablate and connect, and this phenomenon of high-current relay is serious more.And motor all is a movement in one direction at every turn in the present technique scheme, does not have jitter problem, helps reducing the arcing phenomenon.Even arcing also causes the connection of ablating, because motor action moment is very big, can withdraw from the ablation connection status easily, increase substantially the reliability of relay.
Can realize various relays such as single-pole single-throw(SPST, single-pole double throw, many single-pole single-throws, multitool double-throw through increase and decrease feed screw nut quantity.
After accomplishing the actuating of relay, motor can cut off the power supply with energy savings.Motor outage back relay status can be maintained.And possesses good shock resistance.When screw mandrel only links to each other with that nut that is equivalent to moving contact, not having when other any nut links to each other is exactly the intermediateness of relay, if motor quits work at this moment, relay just is in stable intermediateness.
Description of drawings
Fig. 1 Motor Drive super-large current relay construction master looks sketch map.
Fig. 2 Motor Drive super-large current relay schematic top plan view.
The structure chart I of Fig. 3 shaft coupling.
The structure chart II of Fig. 4 shaft coupling.
Embodiment
As scheme it shown in 1, insulating support 1 is a plank frame, can adopt insulation board.Insulating support 1 is provided with two set of connections terminals 2,3, and every set of connections terminal comprises three binding posts, is respectively the binding post 2.1,2.2 and 2.3 in first group; Second group of insulation 3.1,3.2,3.3 in satin.Every group of insulated terminal can be provided with as requested at interval.Each binding post all passes insulating support 1; The other end of each binding post is provided with the conduction nut; It is respectively conduction nut 2.4,2.5,2.6 and 3.4,3.5,3.6; The conduction nut 2.4,2.5,2.6,3.4,3.5,3.6 of conducting and binding post 2.1,2.2 and 2.3,3.1,3.2,3.3 are located at the both sides of insulating support 1 (insulation board) respectively like this.Conduct electricity nut 2.4,2.5,2.6,3.4,3.5,3.6 coaxial settings simultaneously.
One is connected under nonconducting state in screw mandrel 5.1 and the conduction nut 2.4,2.5,2.6, in the present embodiment under nonconducting state screw mandrel 5.1 with conduct electricity nut 2.5 and be connected.
The length of screw mandrel 5.1 realizes on the binding post 2.2 on the conduction nut 2.5 and binding post 2.1 that conduction nut 2.4 is connected conducting or realizes conducting electricity on the binding post 2.2 and conduct electricity nut 2.6 on nut 2.5 and the binding post 2.3 and be connected conducting.
One is connected under nonconducting state in screw mandrel 5.2 and the conduction nut 3.4,3.5,3.6, in the present embodiment under nonconducting state screw mandrel 5.2 with conduct electricity nut 3.5 and be connected.
The length of screw mandrel 5.2 realizes on the binding post 3.2 on the conduction nut 3.5 and binding post 3.1 that conduction nut 3.4 is connected conducting or realizes conducting electricity on the binding post 3.2 and conduct electricity nut 3.6 on nut 3.5 and the binding post 3.3 and be connected conducting.
As shown in Figure 2, in order to make the displacement of insulation axle 4 controlled, on insulating support 1, also be provided with the displacement transducer or the lead limit switch of monitoring insulation axial displacement.In the present embodiment, what insulating support 1 was provided with 8, three groups of optoelectronic switches 8 of three groups of optoelectronic switches outputs signal to control circuit 9.Three groups of optoelectronic switches 8 are positioned at outside the end of insulation axle 4.
The about per second of reducing motor rotating speed 10 changes, just the per second screw mandrel to the right or be moved to the left the distance of 10 teeth, this pull up time in second, can change relay actuation time through changing rotating speed of motor at 1-2.Under the prerequisite that guarantees identical torque, operate time, the shorter power of motor that then requires was big more.
Each nut is equivalent to the contact in the traditional relay, and fixing hole and binding post are arranged at the nut bottom.Fixing hole is used for nut is fixed on insulated substrate, and binding post is used for the circuit connection of actual use.
When motor reversed, two copper wire bars were followed reverse rotation, and screw mandrel moves right while rotating.After photoelectric sensor perception screw mandrel and the complete interlock of right nut, circuit control motor stops operating, and this moment, screw mandrel was communicated with intermediate nut and right nut, and relay is in right logical state.Otherwise when motor just changeed, screw mandrel was moved to the left while rotating.After photoelectric sensor perception screw mandrel and the complete interlock of left nut, circuit control motor stops operating, and this moment, screw mandrel was communicated with intermediate nut and left nut, and relay is in the logical state in a left side.
Traditional relay has only two stable states, adhesive and releases.The said relay of the present invention has three stable states, logical, the right logical and intermediateness in a left side.Accompanying drawing 1 is shown as the relay of the state of mediating.Which kind of state relay is in by the photoelectric sensor perception and pass the signal along to control circuit board.Control circuit board decides the startup of motor according to moment sensor state and external command and stops and rotation direction.
Claims (7)
1. Motor Drive super-large current relay; It comprises insulating support; It is characterized in that insulating support is connected with at least the first set of connections terminal, the said first set of connections terminal comprises first binding post that is provided with at interval, second binding post and the 3rd binding post; First binding post, second binding post and the 3rd binding post all pass insulating support, and the other end of each binding post is provided with the conduction nut, the coaxial setting of each conduction nut; Insulation axle passes each conduction nut, is connected with the first conduction screw mandrel on the insulation axle, and the nut that conducts electricity on the first conduction screw mandrel and one of them binding post is connected; The insulation shaft end be connected with can with together rotate, the shaft coupling that can relatively move again, the other end of shaft coupling is connected with the output of motor decelerating mechanism; Move realization conduction screw mandrel and two conductings that are communicated with of conducting electricity between the nuts through the rotation of conduction screw mandrel.
2. Motor Drive super-large current relay according to claim 1; It is characterized in that said shaft coupling comprises sleeve; Sleeve one end is connected with the output of motor decelerating mechanism, and the radial section of another section of sleeve is shaped as and comprises arc section, and the two ends of arc section are straightways.
3. Motor Drive super-large current relay according to claim 1, the length that it is characterized in that the first conduction screw mandrel realize on second binding post on the second conduction nut and first binding post that the first conduction nut is connected conducting or realizes on second binding post that second conducts electricity on nut and the 3rd binding post and the 3rd to conduct electricity nut and be connected conducting.
4. Motor Drive super-large current relay according to claim 1 is characterized in that insulating support is connected with the second set of connections terminal, and the second set of connections terminal comprises the 4th binding post that is provided with at interval, the 5th binding post and the 6th binding post; The 4th binding post, the 5th binding post and the 6th binding post all pass insulating support, and the other end of each binding post is provided with the conduction nut, the coaxial setting of each conduction nut; The insulation axle passes each conduction nut; Insulation axle is provided with the second conduction screw mandrel, and the nut that conducts electricity on the second conduction screw mandrel and one of them binding post is connected.
5. like the said Motor Drive super-large current of claim 4 relay, the length that it is characterized in that the second conduction screw mandrel realizes on the 5th binding post on the 5th conduction nut and the 4th binding post that the 4th conduction nut is connected conducting or realizes on the 5th binding post that the 5th conducts electricity on nut and the 6th binding post and the 6th to conduct electricity nut and be connected conducting.
6. Motor Drive super-large current relay according to claim 1 is characterized in that also being provided with on the insulating support displacement transducer of monitoring insulation axial displacement.
7. Motor Drive super-large current relay according to claim 1 is characterized in that also being provided with on the insulating support monitoring insulation axle lead limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100018542A CN102683119A (en) | 2012-01-05 | 2012-01-05 | Motor-driven ultrahigh current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100018542A CN102683119A (en) | 2012-01-05 | 2012-01-05 | Motor-driven ultrahigh current relay |
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| Publication Number | Publication Date |
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| CN102683119A true CN102683119A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100018542A Pending CN102683119A (en) | 2012-01-05 | 2012-01-05 | Motor-driven ultrahigh current relay |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012206A1 (en) * | 1993-10-25 | 1995-05-04 | Manfred Menini | Controlled power switch |
| CN101279380A (en) * | 2008-05-29 | 2008-10-08 | 上海交通大学 | Winding pipe boring and milling head main driving mechanism |
| CN201134380Y (en) * | 2007-12-26 | 2008-10-15 | 沈阳华利能源设备制造有限公司 | Three-station switch of 72.5 KV |
| EP2228812A1 (en) * | 2009-03-11 | 2010-09-15 | LS Industrial Systems Co., Ltd | Withdrawable device of main circuit for vacuum circuit breaker |
| CN201820714U (en) * | 2010-09-01 | 2011-05-04 | 刘爱民 | Motor-type high power relay |
| US20110147175A1 (en) * | 2009-12-21 | 2011-06-23 | Boltswitch, Inc. | Terminal Reversing Block |
| CN202423146U (en) * | 2012-01-05 | 2012-09-05 | 武汉市蓝电电子有限公司 | Super large current relay driven by motor |
-
2012
- 2012-01-05 CN CN2012100018542A patent/CN102683119A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012206A1 (en) * | 1993-10-25 | 1995-05-04 | Manfred Menini | Controlled power switch |
| CN201134380Y (en) * | 2007-12-26 | 2008-10-15 | 沈阳华利能源设备制造有限公司 | Three-station switch of 72.5 KV |
| CN101279380A (en) * | 2008-05-29 | 2008-10-08 | 上海交通大学 | Winding pipe boring and milling head main driving mechanism |
| EP2228812A1 (en) * | 2009-03-11 | 2010-09-15 | LS Industrial Systems Co., Ltd | Withdrawable device of main circuit for vacuum circuit breaker |
| US20110147175A1 (en) * | 2009-12-21 | 2011-06-23 | Boltswitch, Inc. | Terminal Reversing Block |
| CN201820714U (en) * | 2010-09-01 | 2011-05-04 | 刘爱民 | Motor-type high power relay |
| CN202423146U (en) * | 2012-01-05 | 2012-09-05 | 武汉市蓝电电子有限公司 | Super large current relay driven by motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 430070, East Lake New Technology Development Zone, Wuhan, Hubei, Hubei Road, No. 38, Optics Valley headquarters, space 3, 401 Applicant after: Wuhan Land Electronics Co., Ltd. Address before: 430070, East Lake New Technology Development Zone, Wuhan, Hubei, Hubei Road, No. 38, Optics Valley headquarters, space 3, 401 Applicant before: Wuhan Land Electronic Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |