CN2606382Y

CN2606382Y - Electric actuator

Info

Publication number: CN2606382Y
Application number: CN 03228969
Authority: CN
Inventors: 徐瑞雯; 谭鹰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-24
Filing date: 2003-02-24
Publication date: 2004-03-10
Anticipated expiration: 2013-02-24

Abstract

The utility model relates to electric actuator technical field, mainly comprising a metal segmental arc determining a plurality of idle positions, a copper brush fixed on an actuating gear, a diode, a circuit formed by leading in a terminal and a circuit consisting of an integrated circuit, resistance, capacitance and electric motor. When the corresponding input end is inputted high potential, while the other input ends are hung in the air or are lower than intermediate potential, or the corresponding input end is communicated with earthing Gnd, while the other input ends are hung in the air or arehigher than high potential, the electric actuator stops automatically at the corresponding idle position. The utility model belongs to the actuator of a plurality of idle positions driven by direct current, or the electric actuator provided with a plurality of idle positions. The utility model has the advantages of simple principle, few electrical elements, reliable action, low cost, thereby being worthy of promotion and application.

Description

A kind of electric actuator

Technical field

The utility model relates to electric actuator technical field in the air-conditioning, and the actuator that it belongs to a kind of a plurality of stop positions of direct-current drive is mainly used in the air conditioning for automobiles electric actuator, is applicable to that also other have the electric actuator of a plurality of stop positions.

Background technology

Electric actuator is a kind of common execution unit, the a large amount of use in robotization control, wherein the air-conditioning that will often use in our daily life also will use this kind parts, as the patent No. is that 00261473 Chinese patent discloses a kind of electric actuator, it comprises electric part, and the box body of being made up of panel, base plate and biside plate and be contained in intermediate plate in the box body; The axle sleeve that sector gear is housed has been installed in box body successively, has been contained on two axles respectively and intermeshing gear wheel and pinion wheel, and the direct current generator of translator fixed mount; It is characterized in that: a, the clamping self-centering card that can guarantee that valve main shaft and actuator axle sleeve are concentric has been installed on axle sleeve; B, be equipped with installed additional successively on the axle of gear wheel can with clutch teeth wheel assembly and the compression spring of sector gear engagement; C, declutch shift shaft are contained on the base plate, and the shift fork of band pressing fork rack is contained on the declutch shift shaft, and shift fork is connected with the clutch teeth wheel assembly; D, be equipped with pinion wheel the axle on installed the worm gear that can be meshed additional with the clutch teeth wheel assembly; E, the worm screw of band worm bracket is housed on the transmission shaft of direct current generator, and is meshed with worm gear; The relay of f, tape relay fixed mount is installed on the intermediate plate, its existing problem is gear train more complicated, need parts such as many mechanical parts such as sector gear, clutch gear, shift fork, spring, be inconvenient to make and assemble, cost limits it and applies also than higher, also there is similar problem in some other electric actuator, individual other electric actuator needs electrical equipment also many, and the electromagnetic mechanism as the many covers of needs causes its production cost to rise greatly.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of electric actuator at prior art, it with at present common pass through current potential comparison or time ratio or the mode of displacement comparison determine the actuator of target axle stop position to compare, have that principle is simple, electrical equipment is few, a reliable in action, the low advantage of cost.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this kind electric actuator, it includes reversible electric machine, it is characterized in that: for N stop position, central point with the execution gear is a rotation center, set gradually N-1 metal segmental arc respectively in the both sides of carrying out gear rotatably, carrying out gear is connected with the output shaft of reversible electric machine by reducing gear, other has copper brush A and the copper brush B θ that forms an angle, their center-side are connected with the central point of carrying out gear jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear both sides, the top fragment position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, and the angle that forms between each stop position and the rotation center is a design parameter, last copper brush A and copper brush B remove to be connected the power end of reversible electric machine by conductive mechanism and driving circuit, other is equipped with the band noble potential, the selector switch that N chosen position arranged, the 1st position of selector switch, the 2nd position connects the positive pole of diode separately by lead separately respectively until the link of N-1 chosen position, separately the negative pole of diode by lead with the 1st of central point one side of carrying out gear, the 2nd connects successively until N-1 metal segmental arc, also be connected to the diode that forward connects between the simultaneously above-mentioned lead, and the 2nd position of selector switch, the 3rd position also connects the positive pole of diode separately by lead separately until the link of N position, separately the negative pole of diode with the 2nd of the central point opposite side of carrying out gear, the 3rd connects successively until N metal segmental arc, also be connected to the diode of reverse connection between the simultaneously above-mentioned lead, wherein N is the natural number greater than 2; Perhaps this kind electric actuator, it includes reversible electric machine, it is characterized in that: for N stop position, central point with the execution gear is a rotation center, set gradually N-1 metal segmental arc respectively in the both sides of carrying out gear rotatably, carrying out gear is connected with the output shaft of reversible electric machine by reducing gear, other has copper brush A and the copper brush B θ that forms an angle, their center-side are connected with the central point of carrying out gear jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear both sides, the apical position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, and the angle that forms between each stop position and the rotation center is a design parameter, last copper brush A and copper brush B remove to be connected the power end of reversible electric machine by conductive mechanism and driving circuit, other is equipped with ground connection, the selector switch that N chosen position arranged, the 1st position of selector switch, the 2nd position connects the negative pole of diode separately by lead separately respectively until the link of N-1 chosen position, separately the positive pole of diode by lead separately with the 1st of central point one side of carrying out gear, the 2nd connects successively until N-1 metal segmental arc, also be connected to the diode of reverse connection between the simultaneously above-mentioned lead, and the 2nd position of selector switch, the 3rd position also connects the negative pole of diode separately by lead separately until the link of N position, separately the positive pole of diode by lead separately with the 2nd of the central point opposite side of carrying out gear, the 3rd connects successively until N metal segmental arc, also be connected to the diode that forward connects between the simultaneously above-mentioned lead, wherein N is the natural number greater than 2.

Above-mentioned N natural number is defined as 5, makes the stop position number of actuator target axle have 5, to be fit to the requirement of general Actuator Of The Air Conditioner.

Above-mentioned conductive mechanism adopts two metal segmental arcs, and they are distributed in the both sides of rotation center symmetrically, and contact with copper brush B with copper brush A separately, and this metal segmental arc removes to connect the input end of driving circuit by connecting line.

Compared with prior art, advantage of the present utility model is: have that principle is simple, electrical equipment is few, a reliable in action, the low advantage of cost, and flexible design, the adjustment parameter is more convenient, make the target axle stop place and the position number of actuator that bigger design leeway and number can be arranged, to be fit to the needs of different use occasions, be adapted at promoting the use of on air-conditioning or other automation control system.

Description of drawings

One of circuit theory diagrams of Fig. 1 the utility model electric actuator;

Two of the circuit theory diagrams of Fig. 2 the utility model electric actuator;

The partial enlarged drawing of Fig. 3 the utility model electric actuator.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment 1

As Fig. 1,3 signals, electric actuator of the present utility model adopts 5 stop positions, and promptly the natural number of N is defined as 5.For 5 stop positions, central point with the execution gear C is the center, 4 metal segmental arcs have been set gradually respectively in the both sides of carrying out gear C rotatably, one side respectively is four metal segmental arcs, be distributed with A1 counterclockwise successively in the left side of rotation center exactly, A2, A3, A4 metal segmental arc, and also be distributed with B2 counterclockwise successively on the right side of rotation center, B3, B4, B5 metal segmental arc, these metal segmental arcs can be made on the disk, above-mentioned execution gear is connected by the output shaft of reducing gear with reversible electric machine M, other has copper brush A and the copper brush B θ that forms an angle, with each above-mentioned stop position angle is identical, all be θ, the center-side of copper brush A and copper brush B is connected with the central point of carrying out gear C jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear C both sides, the apical position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, as the apical position of the metal segmental arc A1 apical position of side metal segmental arc B2 in addition by rotation center and its correspondence is the stop position one that 1-0-1 ' has determined the target axle, and the like, the apical position 2 of metal segmental arc A2 and rotation center 0, the apical position 2 of metal segmental arc B2 ' be the stop position two that 2-0-2 ' has determined the target axle, the apical position 3 of metal segmental arc A3 and rotation center 0, the apical position 3 of metal segmental arc B3 ' be the stop position three that 3-0-3 ' has determined the target axle, the apical position 4 of metal segmental arc A4 and rotation center 0, the apical position 4 of metal segmental arc B4 ' be the stop position four that 4-0-4 ' has determined the target axle, the apical position 5 of metal segmental arc B5 and rotation center 0, the apical position 5 of metal segmental arc B5 ' be the stop position five of 5-0-5 ' decision target axle, and their angle ∠ 1-0-1 '=∠ 2-0-2 '=∠ 3-0-3 '=∠ 4-0-4 '=∠ 5-0-5 '=θ.Angle theta 1, θ 2, θ 3, θ 4 between five stop positions of target axle is by the given design parameter of user, and the angle between each metal segmental arc apical position 1-0-1 ', 2-0-2 ', 3-0-3 ', 4-0-4 ', the 5-0-5 ' is θ 1, θ 2, θ 3, θ 4.Last copper brush A and copper brush B remove to be connected the power end of reversible electric machine M by conductive mechanism and driving circuit, other is equipped with the band noble potential, the selector switch K that 5 chosen positions are arranged, the 1st position of selector switch K, the 2nd position meets diode D13 separately by lead separately respectively until the link of the 4th chosen position, D1, D2, the positive pole of D3, and diode D13, D1, D2, the negative pole of D3 by lead separately with the 1st of the central point left side of carrying out gear, the 2nd is A1 until the 4th metal segmental arc, A2, A3, A4 metal segmental arc connects successively, also be connected to the diode D4 that forward connects between the simultaneously above-mentioned lead, D5, D6, and the 2nd position of selector switch K, the 3rd position also meets diode D10 separately by lead separately until the link of the 5th position, D11, D12, the positive pole of D14, and diode D10, D11, D12, the negative pole of D14 by lead separately with the 2nd of the central point opposite side of carrying out gear C, the 3rd is B2 until the 5th metal segmental arc, B3, B4, B5 metal segmental arc connects successively, also is connected to the diode D7 of reverse connection between the simultaneously above-mentioned lead, D8, D9.It is A0, B0 metal segmental arc that above-mentioned conductive mechanism adopts two metal segmental arcs, and they are distributed in the both sides of rotation center symmetrically, and contact with copper brush B with copper brush A separately, and this metal segmental arc removes to connect the input end of driving circuit by connecting line.Driving circuit is the circuit that is made of integrated circuit (IC) 1, resistance R 2～R9, capacitor C 1 and motor M.When metal segmental arc A0 and metal segmental arc B0 were all unsettled, metal segmental arc A0, metal segmental arc B0 were middle current potential, are about 1/2 of noble potential, the motor M stall; When metal segmental arc A0 be noble potential and metal segmental arc B0 unsettled in during current potential, motor M is rotated in the forward; When metal segmental arc A0 be unsettled in current potential and metal segmental arc B0 when being noble potential, the motor M reverse rotation; When metal segmental arc A0 and metal segmental arc B0 are noble potential, the motor M stall, this driving circuit is more common in motor, can be used for reference.

Electric actuator principle of work of the present utility model is such, when selecting K switch to make input end 1 and noble potential conducting, input end 2,3,4,5 is unsettled or during less than middle current potential, diode D4, D5, D6, the D13 forward conduction makes metal segmental arc A1, A2, A3, A4 is a noble potential, diode D1, D2, D3, D10, D11, D12, D14 is oppositely by making metal segmental arc B2, B3, B4, B5 is unsettled, this moment, no matter what position ＂ copper brush A-0-copper brush B ＂ was in, it is noble potential that metal segmental arc A1 or A2 or A3 or A4 make metal segmental arc A0 through copper brush A, and metal segmental arc B2, B3, B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the execution gear that the target axle is equipped with in the back drive of slowing down clockwise rotates, when being fixed on after the copper brush A that carries out on the gear turns to the apical position 1 of metal segmental arc A1, the loop disconnects, current potential during metal segmental arc A0 recovers, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle is parked in one place, position.

When making input end 2 and noble potential conducting, input end 1,3,4,5 is unsettled or during less than middle current potential, it is noble potential that diode D1, D5, D6, D10 forward conduction make metal segmental arc A2, A3, A4, B2, and diode D4, D2, D3, D13, D7, D11, D12, D14 are oppositely by making metal segmental arc A1, B3, B4, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 2-0-2 ' with a left side, it is noble potential that metal segmental arc A2 or A3 or A4 make metal segmental arc A0 through copper brush A, and metal segmental arc B3, B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear C and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear turn to the apical position 2 of metal segmental arc B2 ' after, it is noble potential that metal segmental arc B2 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear C stall, the target axle is parked in two places, position.When ＂ copper brush A-0-copper brush B ＂ originally was in 2-0-2 ' with the right side, it is noble potential that metal segmental arc B2 makes metal segmental arc B0 through copper brush B, and the unsettled metal segmental arc A0 that makes of metal segmental arc A1 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear and is rotated counterclockwise, turn to the apical position 2 of metal segmental arc A2 as copper brush A after, it is noble potential that metal segmental arc A2 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in two places, position.

When making input end 3 and noble potential conducting, input end 1,2,4,5 is unsettled or during less than middle current potential, it is noble potential that diode D2, D6, D7, D11 forward conduction make metal segmental arc A3, A4, B2, B3, and diode D5, D3, D1, D13, D8, D10, D12, D14 are oppositely by making metal segmental arc A1, A2, B4, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 3-0-3 ' with a left side, it is noble potential that metal segmental arc A3 or A4 make metal segmental arc A0 through copper brush A, and metal segmental arc B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear C and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear C turn to the apical position 3 of metal segmental arc B3 ' after, it is noble potential that metal segmental arc B3 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear C stall, the target axle is parked in three places, position.When ＂ copper brush A-0-copper brush B ＂ originally was in 3-0-3 ' with the right side, it is noble potential that metal segmental arc B2 or B3 make metal segmental arc B0 through copper brush B, and the unsettled metal segmental arc A0 that makes of metal segmental arc A1, A2 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear C and is rotated counterclockwise, turn to the apical position 3 of metal segmental arc A3 as copper brush A after, it is noble potential that metal segmental arc A3 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in three places, position.

When making input end 4 and noble potential conducting, input end 1,2,3,5 is unsettled or during less than middle current potential, it is noble potential that diode D3, D7, D8, D12 forward conduction make metal segmental arc A4, B2, B3, B4, and diode D6, D2, D1, D13, D9, D10, D11, D14 are oppositely by making metal segmental arc A1, A2, A3, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 4-0-4 ' with a left side, it is noble potential that metal segmental arc A4 makes metal segmental arc A0 through copper brush A, and the unsettled metal segmental arc B0 that makes of metal segmental arc B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear C and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear turn to the apical position 4 of metal segmental arc B4 ' after, it is noble potential that metal segmental arc B4 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear stall, the target axle is parked in the position everywhere.When ＂ copper brush A-0-copper brush B ＂ originally was in 4-0-4 ' with the right side, it is noble potential that metal segmental arc B2 or B3 or B4 make metal segmental arc B0 through copper brush B, and metal segmental arc A1, the unsettled metal segmental arc A0 that makes of A2, A3 are middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear and is rotated counterclockwise, turn to the apical position 4 of metal segmental arc A4 as copper brush A after, it is noble potential that metal segmental arc A4 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in the position everywhere.

When making input end 5 and noble potential conducting, input end 1,2,3,4 is unsettled or during less than middle current potential, diode D7, D8, D9, the D14 forward conduction makes metal segmental arc B2, B3, B4, B5 is a noble potential, diode D1, D2, D3, D13, D10, D11, D12 is oppositely by making metal segmental arc A1, A2, A3, A4 is unsettled, this moment, no matter what position ＂ copper brush A-0-copper brush B ＂ was in, it is noble potential that metal segmental arc B2 or B3 or B4 or B5 make metal segmental arc B0 through copper brush B, and metal segmental arc A1, A2, A3, the unsettled metal segmental arc A0 that makes of A4 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the execution gear that the target axle is equipped with in the back drive of slowing down rotates counterclockwise, when be fixed on the copper brush B that carries out on the gear turn to the apical position 5 of metal segmental arc B5 ' after, the loop disconnects, current potential during metal segmental arc B0 recovers, the potential difference (PD) of itself and metal segmental arc A0 disappears, the gear stall is carried out in the motor M stall, and the target axle is parked in five places, position.

The utility model, the noble potential of input end 1～5 can be given by switch connection power supply noble potential, also can be given by single-chip microcomputer or other modes.During circuit input end 1～5 potential change that and if only if, actuator is from current stop position running and stop at given stop position.

Embodiment 2

As Fig. 2,3 signals, electric actuator of the present utility model adopts 5 stop positions, and promptly the parameter-definition of N is 5.For 5 stop positions, central point with the execution gear C is the center, 4 metal segmental arcs have been set gradually respectively in the both sides of carrying out gear C rotatably, one side respectively is four metal segmental arcs, be distributed with A1 counterclockwise successively in the left side of rotation center exactly, A2, A3, A4 metal segmental arc, and also be distributed with B2 counterclockwise successively on the right side of rotation center, B3, B4, B5 metal segmental arc, these metal segmental arcs can be made on the disk, above-mentioned execution gear is connected by the output shaft of reducing gear with reversible electric machine M, other has copper brush A and the copper brush B θ that forms an angle, with each above-mentioned stop position angle is identical, all be θ, the center-side of copper brush A and copper brush B is connected with the central point of carrying out gear C jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear both sides, the apical position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, as the apical position of the metal segmental arc A1 apical position of side metal segmental arc B2 in addition by rotation center and its correspondence is the stop position one that 1-0-1 ' has determined the target axle, and the like, the apical position of metal segmental arc A2 and rotation center 0, the apical position 2 of metal segmental arc B2 ' be the stop position two that 2-0-2 ' has determined the target axle, the apical position of metal segmental arc A3 and rotation center 0, the apical position 3 of metal segmental arc B3 ' be the stop position three that 3-0-3 ' has determined the target axle, the apical position of metal segmental arc A4 and rotation center 0, the apical position 4 of metal segmental arc B4 ' be the stop position four that 4-0-4 ' has determined the target axle, the apical position 5 of metal segmental arc B5 and rotation center 0, the apical position 5 of metal segmental arc B5 ' be the stop position five of 5-0-5 ' decision target axle, and their angle ∠ 1-0-1 '=∠ 2-0-2 '=∠ 3-0-3 '=∠ 4-0-4 '=∠ 5-0-5 '=θ.Angle theta 1, θ 2, θ 3, θ 4 between five stop positions of target axle is by the given design parameter of user, and the angle between each metal segmental arc apical position 1-0-1 ', 2-0-2 ', 3-0-3 ', 4-0-4 ', the 5-0-5 ' is θ 1, θ 2, θ 3, θ 4.Last copper brush A and copper brush B remove to be connected the power end of reversible electric machine M by conductive mechanism and driving circuit, other is equipped with band ground connection, the selector switch K that 5 chosen positions are arranged, the 1st position of selector switch, the 2nd position meets diode D13 separately by lead separately respectively until the link of the 4th chosen position, D1, D2, the negative pole of D3, and diode D13, D1, D2, the positive pole of D3 by lead separately with the 1st of the central point left side of carrying out gear C, the 2nd is A1 until the 4th metal segmental arc, A2, A3, A4 metal segmental arc connects successively, also be connected to the diode D4 of reverse connection between the simultaneously above-mentioned lead, D5, D6, and the 2nd position of selector switch K, the 3rd position also meets diode D10 separately by lead separately until the link of the 5th position, D11, D12, the negative pole of D14, and diode D10, D11, D12, the positive pole of D14 by lead separately with the 2nd of the central point opposite side of carrying out gear, the 3rd is B2 until the 5th metal segmental arc, B3, B4, B5 metal segmental arc connects successively, also is connected to the diode D7 that forward connects between the simultaneously above-mentioned lead, D8, D9.It is A0, B0 metal segmental arc that above-mentioned conductive mechanism adopts two metal segmental arcs, and they are distributed in the both sides of rotation center symmetrically, and contact with copper brush B with copper brush A separately, and this metal segmental arc removes to connect the input end of driving circuit by connecting line.Driving circuit is the circuit that is made of integrated circuit (IC) 1, resistance R 2～R9, capacitor C 1 and motor M: when metal segmental arc A0 and metal segmental arc B0 were all unsettled, metal segmental arc A0, metal segmental arc B0 were middle current potential, are about 1/2 of power supply potential, the motor M stall; When metal segmental arc A0 be electronegative potential and metal segmental arc B0 unsettled in during current potential, motor M is rotated in the forward; When metal segmental arc A0 be unsettled in current potential and metal segmental arc B0 when being electronegative potential, the motor M reverse rotation; When metal segmental arc A0 and metal segmental arc B0 are electronegative potential, the motor M stall, this driving circuit is more common in motor, can be used for reference.

Its principle of work is such: when the input end 1 and the ground connection Gnd conducting that make selector switch K, input end 2,3,4,5 is unsettled or during greater than middle current potential, diode D4, D5, D6, D13 forward conduction metal makes metal segmental arc A1, A2, A3, A4 is an electronegative potential, diode D1, D2, D3, D10, D11, D12, D14 is oppositely by making metal segmental arc B2, B3, B4, B5 is unsettled, this moment, no matter what position ＂ copper brush A-0-copper brush B ＂ was in, it is electronegative potential that metal segmental arc A1 or A2 or A3 or A4 make metal segmental arc A0 through copper brush A, and metal segmental arc B2, B3, B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the execution gear that the target axle is equipped with in the back drive of slowing down clockwise rotates, when being fixed on after the copper brush A that carries out on the gear turns to the apical position 1 of metal segmental arc A1, the loop disconnects, current potential during metal segmental arc A0 recovers, the potential difference (PD) of itself and metal segmental arc B0 disappears, the gear stall is carried out in the motor M stall, and the target axle is parked in one place, position.

When making input end 2 and ground connection Gnd conducting, input end 1,3,4,5 is unsettled or during greater than middle current potential, it is electronegative potential that diode D1, D5, D6, D10 forward conduction make metal segmental arc A2, A3, A4, B2, and diode D4, D2, D3, D13, D7, D11, D12, D14 are oppositely by making metal segmental arc A1, B3, B4, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 2-0-2 ' with a left side, it is electronegative potential that metal segmental arc A2 or A3 or A4 make segmental arc A0 through copper brush A, and metal segmental arc B3, B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear turn to the apical position 2 of metal segmental arc B2 ' after, it is electronegative potential that metal segmental arc B2 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear stall, the target axle is parked in two places, position.When ＂ copper brush A-0-copper brush B ＂ originally was in 2-0-2 ' with the right side, it is electronegative potential that metal segmental arc B2 makes metal segmental arc B0 through copper brush B, and the unsettled metal segmental arc A0 that makes of metal segmental arc A1 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear and is rotated counterclockwise, turn to the apical position 2 of metal segmental arc A2 as copper brush A after, it is electronegative potential that metal segmental arc A2 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in two places, position.

When making input end 3 and ground connection Gnd conducting, input end 1,2,4,5 is unsettled or during greater than middle current potential, it is electronegative potential that diode D2, D6, D7, D11 forward conduction make metal segmental arc A3, A4, B2, B3, and diode D5, D3, D1, D13, D8, D10, D12, D14 are oppositely by making metal segmental arc A1, A2, B4, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 3-0-3 ' with a left side, it is electronegative potential that metal segmental arc A3 or A4 make metal segmental arc A0 through copper brush A, and metal segmental arc B4, the unsettled metal segmental arc B0 that makes of B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear turn to the apical position 3 of metal segmental arc B3 ' after, it is electronegative potential that metal segmental arc B3 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear stall, the target axle is parked in three places, position.When ＂ copper brush A-0-copper brush B ＂ originally was in 3-0-3 ' with the right side, it is electronegative potential that metal segmental arc B2 or B3 make metal segmental arc B0 through copper brush B, and the unsettled metal segmental arc A0 that makes of metal segmental arc A1, A2 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear and is rotated counterclockwise, turn to the apical position 3 of metal segmental arc A3 as copper brush A after, it is electronegative potential that metal segmental arc A3 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in three places, position.

When making input end 4 and ground connection Gnd conducting, input end 1,2,3,5 is unsettled or during greater than middle current potential, it is electronegative potential that diode D3, D7, D8, D12 forward conduction make metal segmental arc A4, B2, B3, B4, and diode D6, D2, D1, D13, D9, D10, D11, D14 are oppositely by making metal segmental arc A1, A2, A3, B5 unsettled.When ＂ copper brush A-0-copper brush B ＂ originally was in 4-0-4 ' with a left side, it is electronegative potential that metal segmental arc A4 makes metal segmental arc A0 through copper brush A, and the unsettled metal segmental arc B0 that makes of metal segmental arc B5 is middle current potential, its potential difference (PD) causes motor M to be rotated in the forward, the back drive of slowing down is carried out gear and is clockwise rotated, when be fixed on the copper brush B that carries out on the gear turn to the apical position 4 of metal segmental arc B4 ' after, it is electronegative potential that metal segmental arc B4 makes metal segmental arc B0 through copper brush B, the potential difference (PD) of itself and metal segmental arc A0 disappears, the motor M stall, carry out the gear stall, the target axle is parked in the position everywhere.When ＂ copper brush A-0-copper brush B ＂ originally was in 4-0-4 ' with the right side, it is electronegative potential that metal segmental arc B2 or B3 or B4 make metal segmental arc B0 through copper brush B, and metal segmental arc A1, the unsettled metal segmental arc A0 that makes of A2, A3 are middle current potential, its potential difference (PD) causes the motor M reverse rotation, the back drive of slowing down is carried out gear and is rotated counterclockwise, turn to the apical position 4 of metal segmental arc A4 as copper brush A after, it is electronegative potential that metal segmental arc A4 makes metal segmental arc A0 through copper brush A, the potential difference (PD) of itself and metal segmental arc B0 disappears, the motor M stall, carry out the gear stall, the target axle also is parked in the position everywhere.

When making input end 5 and ground connection Gnd conducting, input end 1,2,3,4 is unsettled or during greater than middle current potential, diode D7, D8, D9, the D14 forward conduction makes metal segmental arc B2, B3, B4, B5 is an electronegative potential, diode D1, D2, D3, D13, D10, D11, D12 is oppositely by making metal segmental arc A1, A2, A3, A4 is unsettled, this moment, no matter what position ＂ copper brush A-0-copper brush B ＂ was in, it is electronegative potential that metal segmental arc B2 or B3 or B4 or B5 make metal segmental arc B0 through copper brush B, and metal segmental arc A1, A2, A3, the unsettled metal segmental arc A0 that makes of A4 is middle current potential, its potential difference (PD) causes the motor M reverse rotation, the execution gear that the target axle is equipped with in the back drive of slowing down rotates counterclockwise, when be fixed on the copper brush B that carries out on the gear turn to the apical position 5 of metal segmental arc B5 ' after, the loop disconnects, current potential during metal segmental arc B0 recovers, the potential difference (PD) of itself and metal segmental arc A0 disappears, the gear stall is carried out in the motor M stall, and the target axle is parked in five places, position.

The utility model, the electronegative potential of input end 1～5 can be given by switch connection ground connection Gnd, also can be given by single-chip microcomputer or other modes.During circuit input end 1～5 potential change that and if only if, actuator is from current stop position running and stop at given stop position.

Claims

1. electric actuator, it includes reversible electric machine, it is characterized in that: for N stop position, central point with execution gear (C) is a rotation center, set gradually N-1 metal segmental arc respectively in the both sides of carrying out gear (C) rotatably, carrying out gear is connected with the output shaft of reversible electric machine by reducing gear, other has copper brush (A) and copper brush (B) θ that forms an angle, their center-side are connected with the central point of carrying out gear (C) jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear both sides, the top fragment position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, and the angle that forms between each stop position and the rotation center is a design parameter, last copper brush (A) and copper brush (B) remove to be connected the power end of reversible electric machine by conductive mechanism and driving circuit, other is equipped with the band noble potential, the selector switch K that N chosen position arranged, the 1st position of selector switch K, the 2nd position connects the positive pole of diode separately by lead separately respectively until the link of N-1 chosen position, separately the negative pole of diode by lead with the 1st of central point one side of carrying out gear (C), the 2nd connects successively until N-1 metal segmental arc, also be connected to the diode that forward connects between the simultaneously above-mentioned lead, and the 2nd position of selector switch K, the 3rd position also connects the positive pole of diode separately by lead separately until the link of N position, separately the negative pole of diode with the 2nd of the central point opposite side of carrying out gear (C), the 3rd connects successively until N metal segmental arc, also be connected to the diode of reverse connection between the simultaneously above-mentioned lead, wherein N is the natural number greater than 2.

2. electric actuator, it includes reversible electric machine, it is characterized in that: for N stop position, central point with execution gear (C) is a rotation center, set gradually N-1 metal segmental arc respectively in the both sides of carrying out gear (C) rotatably, carrying out gear (C) is connected with the output shaft of reversible electric machine by reducing gear, other has copper brush (A) and copper brush (B) θ that forms an angle, their center-side are connected with the central point of carrying out gear (C) jointly, and away from two ends contact respectively and be distributed in the metal segmental arc of carrying out the gear both sides, the apical position of the opposite side metal segmental arc that the apical position of a metal segmental arc is corresponding with it has just determined the stop position of target separately, and the angle that forms between their apical positions and the rotation center also is θ, and the angle that forms between each stop position and the rotation center is a design parameter, last copper brush (A) and copper brush (B) remove to be connected the power end of reversible electric machine by conductive mechanism and driving circuit, other is equipped with ground connection, the selector switch K that N chosen position arranged, the 1st position of selector switch K, the 2nd position connects the negative pole of diode separately by lead separately respectively until the link of N-1 chosen position, separately the positive pole of diode by lead separately with the 1st of central point one side of carrying out gear (C), the 2nd connects successively until N-1 metal segmental arc, also be connected to the diode of reverse connection between the simultaneously above-mentioned lead, and the 2nd position of selector switch K, the 3rd position also connects the negative pole of diode separately by lead separately until the link of N position, separately the positive pole of diode by lead separately with the 2nd of the central point opposite side of carrying out gear (C), the 3rd connects successively until N metal segmental arc, also be connected to the diode that forward connects between the simultaneously above-mentioned lead, wherein N is the natural number greater than 2.

3. electric actuator according to claim 1 and 2 is characterized in that described N natural number is defined as 5.

4. electric actuator according to claim 1 and 2, it is characterized in that described conductive mechanism adopts two metal segmental arcs, they are distributed in the both sides of rotation center symmetrically, and contact with copper brush (B) with copper brush (A) separately, and this metal segmental arc removes to connect the input end of driving circuit by connecting line.