CN102723816A - State feedback switch and limited angle torque motor using same - Google Patents
State feedback switch and limited angle torque motor using same Download PDFInfo
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- CN102723816A CN102723816A CN2012101966000A CN201210196600A CN102723816A CN 102723816 A CN102723816 A CN 102723816A CN 2012101966000 A CN2012101966000 A CN 2012101966000A CN 201210196600 A CN201210196600 A CN 201210196600A CN 102723816 A CN102723816 A CN 102723816A
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Abstract
The invention discloses a state feedback switch which comprises an insulating circuit board, limiting members and an electric brush component. Two connection bands with a certain connection range are arranged on the insulating circuit board, the limiting members are arranged on the outer sides of the two connection bands, an electric brush which is arranged at the front end of an electric brush arm in the electric brush component is positioned between the limiting members and contacts with the connection bands, and the tail end of the electric brush arm corresponds to the center of the insulating circuit board to be connected with an external rotary shaft. A core component of a limited angle torque motor comprises the state feedback switch arranged at the rear section of a rotary shaft component, and the two connection bands of the state feedback switch are externally connected with a state indication device. Compared with the prior art, the state feedback switch has the advantages that the connection bands and the limiting members arranged in the state feedback switch enable the electric brush to rotate in a preset limited angle range, connection range is widened while reliable state feedback signals are provided for the limited angle torque motor through the state indication device, and accordingly operational safety of the motor is guaranteed.
Description
Technical field
The present invention relates to the motor apparatus technical field, the limited angle torque motor that is specially a kind of state feedback switch and uses this switch.
Background technology
The limited angle torque motor is a kind of motor that can directly drive load, can automatically reset and have certain self-locking moment.The limited angle torque motor is controlled the size and Orientation of motor corner through regulating the direct current signal size and Orientation with this.For the mechanism of in certain angle, doing back and forth movement, for example interrupter often need adopt the limited angle torque motor that it is driven.This limited angle torque motor want cube little, in light weight and be convenient to control.
At present, the typical structure of limited angle torque motor comprises three types, is respectively circular ring type as shown in Figure 1, end-surface type as shown in Figure 2 and electrodynamic type as shown in Figure 3.The weak point of existing circular ring type is that stator and gap between rotor are bigger, will make that like this driving moment is less than normal; The weak point of existing end-surface type is, the manufacturing process more complicated, and operating state obtains poor stability; Though existing electrodynamic type has bigger driving moment, still has the problem of aspects such as complex structure.As can be seen from Figure 3, be equipped with coil windings on DYN dynamic stator and the rotor.Because the requirement of more its match parameter of coil windings is also just many more, so, have on various coil windings processing problems, drop into the more resources of production for the enterprise that produces electrodynamic type limited angle torque motor.This also just means, because DYN dynamic coil windings difficulty of processing is big, makes the work resource of enterprise not only can not get disposing effectively, is also limiting the production efficiency of enterprise to a great extent, has increased the input cost of enterprise virtually.
Along with production safety more and more receives people's attention, need obtain reliable and effective feedback information to limited angle torque state of motor staff.Because motor can be normal, safe carry out work, directly have influence on the operating state of driven device.At present, the state feedback switch that is used on the limited angle torque motor comprises following three types: Hall-type switch, tongue tube are near switch and sensitive switch as shown in Figure 4.Wherein, the Hall-type switch adopts the Hall switch signal as feedback signal, though have advantages such as no electric shock, low-power consumption, long life and high response frequency, its shortcoming is to need power supply; Tongue tube is near switch, though belong to the passive switch signal, the operating current of small dimension is less than normal, useful life is limited; Though sensitive switch also belongs to the passive switch signal, and simple in structure and easy for installation, its useful life is on the low side, the conducting scope is less, to the poor reliability of conducting performance in the prescribed limit.This is because sensitive switch only depends on a very little contact point of scope to accomplish conducting.For the limited angle torque motor that moves reciprocatingly, the most important work state embodies two break-in revolutions place.The limited angle torque motor in break-in turning course each time, the action that the sensitive switch that produces state feedback is all had an extruding and loosens.When motor extruding sensitive switch, the sensitive switch conducting connects, and produces the state feedback signal simultaneously; When motor during away from sensitive switch, the sensitive switch conducting is broken off, simultaneously the state feedback blackout.If the conducting scope angle of limited angle torque electric motor state feedback defined is 5 °, the scope angle that sensitive switch can effectively feed back possibly only have only 2 °.Hence one can see that, and sensitive switch can not give the reliable state feedback of limited angle torque motor in prescribed limit.Increased the hidden danger of motor work safety.
In order to enlarge the scope of application of limited angle torque motor, its finite angle size needs higher adjustability.The parts of on the limited angle torque motor, confirming the finite angle size are align member, this align member usually and the state feedback switch be provided with jointly.As can be seen from Figure 4, sensitive switch is because more, the complex structure of its parts, for the space adjusted that align member leaves little, so adopt the scope of application of limited angle torque motor of sensitive switch less relatively.
Summary of the invention
In view of this; The limited angle torque motor that the present invention provides a kind of state feedback switch and uses this switch; The state feedback switch is through increase conducting scope, and then the feasible limited angle torque motor that this state feedback switch is set guarantees the reliability of operating state feedback.
For solving above technical problem; Technical scheme of the present invention is that a kind of state feedback switch comprises insulating circuit board, spacing member and brush assembly of electric; Said insulating circuit board is provided with two conducting bands; It is on the annulus of round dot that said two conducting bands are positioned at the insulating circuit board center, and corresponding central angle is 90 ° ± 10 ° between two conducting bands, and the corresponding central angle of conducting band conducting scope separately is 10 ° ± 5 °; The outside of said two conducting bands is provided with spacing member; Said brush assembly of electric comprises brush and brush arm; The front end of brush arm is provided with brush, and the brush of brush contacts with the conducting band, and the end of brush arm is provided with connector; This connector is corresponding with the position at said insulating circuit board center; Connector is used to connect outside rotating shaft, and drive and the spacing member of brush arm through outside rotating shaft spacing makes brush motion realization switch conduction between two conducting bands.
Further; Said spacing member comprises two locating pieces, and the insulating circuit board in said two conducting bands outside is provided with guide rail, and this guide rail and conducting band are positioned on the same annulus; The center of circle angle of guide rail is 270 ° ± 10 °; Said two locating pieces are connected with guide rail through slide block respectively, and said locating piece is provided with locking member, and locking member is used to limit the position of locating piece on insulating circuit board.
Further, said insulating circuit board is a ceramic circuit board, is coated with wear-resistant material layer on the contact-making surface of this ceramic circuit board and brush.
Further, said brush arm is provided with block, and said brush is arranged on the block.
A kind of limited angle torque motor comprises hood and is installed in the inner cartridge assemblies of hood that said hood comprises procapsid, back casing and bonnet, forms first cavity between procapsid and the back casing, forms second cavity between back casing and the bonnet; Said cartridge assemblies comprises rotating assembly, electromagnetic induction assembly and state feedback switch; Said rotating assembly is positioned on the central axis of hood and runs through procapsid and back casing; Said electromagnetic induction assembly correspondence is arranged on the position of rotating assembly in first cavity, is used for power and generates; Said state feedback switch is arranged on the rotating assembly in second cavity, is used for the feedback operation state; Insulating circuit board in the said state feedback switch is fixed on the cross section in second cavity; This cross section is vertical with rotating assembly; Rotating assembly is connected with brush arm through being arranged on the terminal connector of brush arm, and rotating assembly drives brush through brush arm and between two conducting bands on the insulating circuit board, moves; Said two conducting bands are circumscribed with state indicating device through lead respectively.
Further, be connected with the resilience parts between said hood and the brush assembly of electric, an end of resilience parts is fixedly connected with hood, and the other end is fixedly connected with brush arm; Brush is when a conducting band on the insulating circuit board contacts, and the reset force of resilience parts is minimum; Brush is when another conducting band on the insulating circuit board contacts, and the reset force of resilience parts is maximum.
Further, said elastic reseting part is a torsion spring, and torsion spring set is connected on the rotating assembly, and an end of torsion spring is fixedly connected with said back casing, and the other end is fixedly connected with brush arm.
Further; Said rotating assembly is provided with floral disc, and this floral disc is positioned at the end of rotating assembly, and the card of floral disc and bonnet are relatively and leave the gap; Be arranged at intervals with the two states sign on the card of said floral disc; State when the corresponding conducting band of a kind of status indicator contacts with brush, said bonnet is provided with form, corresponding status indicator on floral disc when this form is used to show brush contact conducting band.
Further, said state indicating device is sound/light/electric generator, and when said brush contacted conducting respectively with two conducting bands, state indicating device was showed the two states indication.
Further, said electromagnetic induction assembly comprises rotor and stator, and said rotor is the rare-earth permanent magnet that is attached on the rotating assembly, and said stator is to be fixed between the forward and backward housing and to be centered around the overlapped steel silicon chip of rare-earth permanent magnet excircle.
Compared with prior art; Be provided with the conducting band that has certain conducting scope in the state feedback switch on the insulating circuit board; Through the restriction of the spacing member in the conducting band outside, brush is rotated, in preset finite angle scope when the brush break-in is turned round but still is in original operating state; The brush of brush can be remained valid in preset conducting scope with the conducting band and contacted; So not only increased the conducting scope, be that the corner torque motor that this state feedback switch is set provides reliable state feedback signal also simultaneously, and then guaranteed the work safety of motor through state indicating device.
Description of drawings
Fig. 1 is the structural representation of circular ring type limited angle torque motor;
Fig. 2 is the structural representation of end-surface type limited angle torque motor;
Fig. 3 is the structural representation of electrodynamic type limited angle torque motor;
Fig. 4 is the structural representation of sensitive switch;
Fig. 5 is the perspective view of state feedback switch among the present invention;
Fig. 6 is the front view of Fig. 5;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the structural representation of insulating circuit board in the state feedback switch;
Fig. 9 is the cross-sectional view of limited angle torque motor among the present invention.
Among the figure: 1, ceramic circuit board, 2, the conducting band, 3, guide rail, 4, locating piece, 5, brush; 6, block, 7, brush arm, 8, through hole, 9, clamping screw, 10, rotating assembly; 11, procapsid, 12, coil block, 13, back casing, 14, bonnet, 15, floral disc; 16, torsion spring, 17, regulate pad, 18, rare-earth permanent magnet, 19, the steel silicon chip.
Embodiment
Core thinking of the present invention is; In the state feedback switch, comprise the insulating circuit board that has the conducting band; Brush assembly of electric can be remained and the contacting of conducting band on the conducting scope of regulation; Increased effective conducting scope of conducting band with this, and then be that the limited angle torque motor that this state feedback switch is set provides reliable feedback states.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 5 to Fig. 8, a kind of state feedback switch comprises insulating circuit board, spacing member and brush assembly of electric.Wherein, insulating circuit board is a ceramic circuit board 1, and this ceramic circuit board 1 is provided with two conducting bands 2 and guide rail 3; Spacing member comprises two locating pieces 4; Brush assembly of electric comprises brush 5 and brush arm 7.The annexation of above-mentioned parts is specific as follows:
As shown in Figure 8, ceramic circuit board 1 be shaped as a disk, two conducting bands 2 and guide rail 3 are arranged on the annulus of ceramic circuit board.Guide rail 3 is positioned at the outside of two conducting bands 2.Wherein, corresponding central angle is 90 ° ± 10 ° between two conducting bands 2, and the corresponding central angle of each conducting band 2 conducting scope separately is 10 ° ± 5 °, and guide rail 3 pairing central angles are 270 ° ± 10 °.
Install with limited angle torque shaft of motor assembly is compact for ease, as an embodiment, the center of ceramic circuit board 1 is provided with a through hole 8, and the radius of this through hole 8 is less than the radius of above-mentioned annulus.
Shown in Fig. 5 to Fig. 7, two locating pieces 4 are arranged on the guide rail 3.Can form through slide block between locating piece 4 and the guide rail 3 and be slidingly connected.Also be provided with locking member on the locating piece 4, locking member is used to limit the position of locating piece on insulating circuit board.
In the present embodiment, slide block and locking member are same parts, and promptly clamping screw 9.Forming the setting that is slidingly connected between locating piece 4 and the guide rail 3, is that the user adjusts the angle between the locating piece 4 through the needs of oneself for ease, and then enlarges the scope of application of limited angle torque motor.And with clamping screw 9 promptly as the setting of slide block as locking member, be in order can to reduce the number of components on the state feedback switch, to simplify the structure of state feedback switch, and then reduce production difficulty and production cost with this.
As can be seen from the figure locating piece 4 itself is provided with and the consistent groove of guide rail 3 shapes, and the setting of this groove is the adjustment of locating piece 4 on guide rail 3 for ease.
Locating piece 4 in the detailed process of ceramic circuit board 1 adjusted position is: the user confirms to the angle between two locating pieces 4 that as required scope that locating piece 4 can move and guide rail 3 pairing central angles are consistent; Behind the position of intended orientation piece 4, loosen clamping screw 9, make locating piece 4 slide into the precalculated position through clamping screw 9 along the track of guide rail 3; Behind the locating piece 4 arrival precalculated positions, the clamping screw 9 of screwing is locked on the guide rail 3 locating piece 4, and the locking degree is as the criterion to satisfy the positioning function of locating piece 4 on ceramic circuit board 1.Because in the course of the work in order to realize the location; Locating piece 4 can receive the direct impact from the outside; So after locating piece 4 is adjusted to the precalculated position; Can fill the material of going up fluid sealant and so in the groove on the locating piece 4, cushion the impulsive force that locating piece 4 receives with this, and then make locating piece 4 fully play the effect of location.
To shown in Figure 8, the front end of brush arm 7 is provided with brush 5 like Fig. 5, and the brush of brush 5 contacts with conducting band 2; The end of brush arm 7 is provided with connector, and this connector is corresponding with the center of ceramic circuit board 1, and the setting of connector is to be connected in order to make things convenient for outside rotating shaft, and this outside rotating shaft is limited angle torque shaft of motor assembly.Because the outside of two conducting bands 2 is respectively arranged with a locating piece 4; Again because brush arm 7 tail ends link to each other with rotating assembly through connector; So brush 5 can only be the center of circle with the mid point of ceramic circuit board 1, in (promptly two conducting band 2 between) motion between two locating pieces 4.
Spacing in order better brush 5 and limited angle torque motor to be carried out, to guarantee the size of finite angle.Simultaneously, also be for protect brush arm 7 can because of with locating piece 4 bump and being damaged fast.As an embodiment, the front end of brush arm 7 is provided with block 6, and 5 of brushes are arranged on this block 6, and the brush of brush 5 still contacts with conducting band 2.
Because when brush 5 moved between two conducting bands 2 on ceramic circuit board, ceramic circuit board 1 can bear certain frictional dissipation with the contact-making surface of brush 5.In order to reduce the wearing and tearing of ceramic circuit board 1, and then prolong useful life of state feedback switch, so on the contact-making surface of ceramic circuit board 1, be coated with wear-resistant material layer, this wear-resistant material layer is an adamantine layer.
Through the state feedback switch is described in detail, existing structure to limited angle torque motor that this state feedback switch is set is done further explanation, and is specific as follows:
Referring to Fig. 9, a kind of limited angle torque motor comprises hood and is installed in the inner cartridge assemblies of hood.
Hood comprises procapsid 11, back casing 13 and bonnet 14.As can be seen from the figure, hood comprises two cavitys, and promptly first cavity and second cavity form first cavity between procapsid 11 and the back casing 13, form second cavity between back casing 13 and the bonnet 14.
Cartridge assemblies then comprises rotating assembly 10, electromagnetic induction assembly and state feedback switch.Rotating assembly 10 comprises rotating shaft and bearing.As can be seen from the figure, rotating assembly 10 is positioned on the central axis of hood, and runs through procapsid 11 and back casing 13.Be respectively arranged with between rotating assembly 10 and procapsid 11, the back casing 13 and regulate pad 17.The effect of regulating pad 17 is to eliminate the gap to guarantee the stability of rotating assembly 10 in hood.The leading portion of rotating assembly 10 stretches out procapsid 11, is used to connect the output that driven device is realized power; The stage casing of rotating assembly 10 is positioned at first cavity, and electromagnetic induction assembly correspondence is arranged on this section rotating assembly 10 residing positions and is used for the power generation; The back segment of rotating assembly 10 is positioned at second cavity, is used to be provided with the state feedback switch, and the state feedback switch then is that the break-make that is used for state feedback is showed; Leave certain intervals between the end of rotating assembly 10 and the bonnet 14.
After rotating assembly 10 passes the through hole 8 on the ceramic circuit board 1 in the state feedback switch, be connected with brush assembly of electric center brush arm 7 terminal connectors.Wherein, ceramic circuit board 10 is fixed on the cross section of bonnet 5, and this cross section is perpendicular to rotating assembly 10.Leave the gap between through hole 8 and the rotating assembly 10; That is to say that rotating assembly 10 is in rotating process; Ceramic circuit board 1 does not rotate with rotating assembly 10 synchronously; Brush arm 7 then drives brushes 5 through rotating assembly 10 and rotates, and the track that brush 5 rotates is the annulus between two conducting bands 2 on the ceramic circuit board 1.
One of characteristics of limited angle torque motor are can self-locking; The shortcomings such as self-lock ability difference that exist in the contrast prior art; The present invention's limited angle torque motor be provided with the resilience parts; To strengthen the self-lock ability of limited angle torque motor, be its increase ability that automatically resets simultaneously.One end of resilience parts is fixedly connected with hood, and the other end is fixedly connected with brush arm 7 in the brush assembly of electric.As long as the setting of resilience parts can meet the following conditions: when one of them conducting band 2 contacted on brush 5 and the ceramic circuit board 1, reset force was minimum; When another conducting band contacted on brush 5 and the ceramic circuit board 1, reset force was maximum.Simultaneously, through the physical property of resilience parts self, can certain self-locking moment be provided for the limited angle torque motor.
For the ability of automatically reseting can be provided better, so reset components adopts following preferred embodiment:
With the resilience parts of torsion spring 16 as connection hood and brush assembly of electric.Torsion spring 16 is socketed on the back segment of rotating assembly 10, and an end of torsion spring 16 is fixedly connected with back casing 13, and the through hole 8 that the other end passes on the ceramic circuit board 1 is fixedly connected with brush arm 7.Torsion spring 16 drives brush assembly of electric and the automatically reset process of rotating shaft is:
(1) when limited corner torque motor cuts off the power supply; The brush 5 that is arranged on the brush arm 7 contacts with a conducting band 2 on the ceramic circuit board 1; Be decided to be initial position, the 0 ° of position that is just indicated among Fig. 7, the reset force of torsion spring 16 this moment in entire work process is minimum.
(2) when limited corner torque motor is switched on; Through the drive of rotating assembly 10 and the location of locating piece 4; Brush arm 7 drives brush 5 and contacts with another conducting band 2; Be decided to be the service position, 90 ° of positions that just indicated among Fig. 7, the reset force of torsion spring 16 this moment in entire work process is maximum.
(3) when limited corner torque motor cut off the power supply once more, rotating assembly 10 was removed power, and the effect of torsion spring 16 through reset force drives brush arm 7 and reset to initial position from the service position.Because brush arm 7 is connected with torsion spring 16, brush arm 7 is connected with rotating assembly 10 again, so when torsion spring 16 drove brush arm 7 revolutions, rotating assembly 10 was too because the reset force of torsion spring 16 is automatically reset.
In order to make things convenient for the staff to monitor operating state in real time; So on the limited angle torque motor, be provided with the state exhibiting device; This state exhibiting device comprises the sound/light/electric generator that is connected with the state feedback switch wire, and is arranged on the floral disc 15 that rotating assembly 10 ends are positioned at second cavity.
Wherein, sound/light/electric generator comprises two kinds of indicating status respectively, the operating state of respectively corresponding two the conducting bands 2 of these two kinds of indicating status.For example, if adopt red green indicator light, when brush 5 contacted with the conducting band 2 of initial position, green light was bright; When brush 5 contacted with the conducting band 2 of service position, then red light was bright.
The setting of floral disc then is through simple mechanical rotation, to the clear and definite residing operating state of displaying limited angle torque motor of staff.Its concrete structure is provided with as follows:
The card of floral disc 15 and bonnet 14 are arranged at intervals with the two states sign at interval relatively on the card of floral disc 15, this status indicator is respectively initial marking and work sign.Bonnet 14 is provided with form, is used to show status indicator set on the floral disc 15.When brush 5 contacted with the conducting band 2 of initial position, initial marking turned to the form place shows initial condition from motor to the staff; When brush 5 contacted with the conducting band 2 of service position, the work sign turned to the form place and shows state of motor to the staff.
Through knowing the analysis of existing limited angle torque motor types, DYN dynamic structure has big this advantage of driving moment, but still has complex structure, is unfavorable for the problem of manufacturing enterprise's fabrication and processing.Mainly be because be equipped with coil windings on rotor and the stator, so the corresponding matched parameter is various.Also done corresponding improvement for this problem among the present invention.Concrete scheme is:
Rotor in the electromagnetic induction assembly is set to be attached to the rare-earth permanent magnet 18 on the rotating assembly 10, and stator then is set to be centered around the overlapping steel silicon chip 19 of rare-earth permanent magnet 18 excircles.At the corresponding hood upper fixed line coil assembly 12 of steel silicon chip 19 to increase magnetic permeability.This set has not only been simplified the structure of limited angle torque motor; Make things convenient for the fabrication and processing of manufacturing enterprise; Also satisfied the demand of user simultaneously to driving moment; Promptly under equal volume through rare-earth permanent magnet 18 as the setting of the steel silicon chip 19 of rotor, stack as stator, can significantly increase actuating force of the present invention.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. state feedback switch; It is characterized in that; Comprise insulating circuit board, spacing member and brush assembly of electric, said insulating circuit board is provided with two conducting bands, and it is on the annulus of round dot that said two conducting bands are positioned at the insulating circuit board center; Corresponding central angle is 90 ° ± 10 ° between two conducting bands, and the corresponding central angle of conducting band conducting scope separately is 10 ° ± 5 °; The outside of said two conducting bands is provided with spacing member; Said brush assembly of electric comprises brush and brush arm; The front end of brush arm is provided with brush, and the brush of brush contacts with the conducting band, and the end of brush arm is provided with connector; This connector is corresponding with the position at said insulating circuit board center; Connector is used to connect outside rotating shaft, and drive and the spacing member of brush arm through outside rotating shaft spacing makes brush motion realization switch conduction between two conducting bands.
2. state feedback switch as claimed in claim 1 is characterized in that, said spacing member comprises two locating pieces; The insulating circuit board in said two conducting bands outside is provided with guide rail; This guide rail and conducting band are positioned on the same annulus, and the center of circle angle of guide rail is 270 ° ± 10 °, and said two locating pieces are connected with guide rail through slide block respectively; Said locating piece is provided with locking member, and locking member is used to limit the position of locating piece on insulating circuit board.
3. state feedback switch as claimed in claim 1 is characterized in that, said insulating circuit board is a ceramic circuit board, is coated with wear-resistant material layer on the contact-making surface of this ceramic circuit board and brush.
4. state feedback switch as claimed in claim 1 is characterized in that said brush arm is provided with block, and said brush is arranged on the block.
5. limited angle torque motor; Comprise hood and be installed in the inner cartridge assemblies of hood; Said hood comprises procapsid, back casing and bonnet, forms first cavity between procapsid and the back casing, forms second cavity between back casing and the bonnet; It is characterized in that said cartridge assemblies comprises rotating assembly, electromagnetic induction assembly and like each described state feedback switch among the claim 1-4; Said rotating assembly is positioned on the central axis of hood and runs through procapsid and back casing; Said electromagnetic induction assembly correspondence is arranged on the position of rotating assembly in first cavity, is used for power and generates; Said state feedback switch is arranged on the rotating assembly in second cavity, is used for the feedback operation state; Insulating circuit board in the said state feedback switch is fixed on the cross section in second cavity; This cross section is vertical with rotating assembly; Rotating assembly is connected with brush arm through being arranged on the terminal connector of brush arm, and rotating assembly drives brush through brush arm and between two conducting bands on the insulating circuit board, moves; Said two conducting bands are circumscribed with state indicating device through lead respectively.
6. limited angle torque motor as claimed in claim 5 is characterized in that, is connected with the resilience parts between said hood and the brush assembly of electric, and an end of resilience parts is fixedly connected with hood, and the other end is fixedly connected with brush arm; Brush is when a conducting band on the insulating circuit board contacts, and the reset force of resilience parts is minimum; Brush is when another conducting band on the insulating circuit board contacts, and the reset force of resilience parts is maximum.
7. limited angle torque motor as claimed in claim 6 is characterized in that, said elastic reseting part is a torsion spring, and torsion spring set is connected on the rotating assembly, and an end of torsion spring is fixedly connected with said back casing, and the other end is fixedly connected with brush arm.
8. limited angle torque motor as claimed in claim 5 is characterized in that said rotating assembly is provided with floral disc; This floral disc is positioned at the end of rotating assembly; The card of floral disc and bonnet are relative and leave the gap, are arranged at intervals with the two states sign on the card of said floral disc, the state when the corresponding conducting band of a kind of status indicator contacts with brush; Said bonnet is provided with form, corresponding status indicator on floral disc when this form is used to show brush contact conducting band.
9. limited angle torque motor as claimed in claim 5 is characterized in that, said state indicating device is sound/light/electric generator, and when said brush contacted conducting respectively with two conducting bands, state indicating device was showed the two states indication.
10. limited angle torque motor as claimed in claim 5; It is characterized in that; Said electromagnetic induction assembly comprises rotor and stator; Said rotor is the rare-earth permanent magnet that is attached on the rotating assembly, and said stator is to be fixed between the forward and backward housing and to be centered around the overlapped steel silicon chip of rare-earth permanent magnet excircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101966000A CN102723816B (en) | 2012-06-14 | 2012-06-14 | State feedback switch and limited angle torque motor using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101966000A CN102723816B (en) | 2012-06-14 | 2012-06-14 | State feedback switch and limited angle torque motor using same |
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| Publication Number | Publication Date |
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| CN102723816A true CN102723816A (en) | 2012-10-10 |
| CN102723816B CN102723816B (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101966000A Active CN102723816B (en) | 2012-06-14 | 2012-06-14 | State feedback switch and limited angle torque motor using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899161A (en) * | 2015-12-21 | 2017-06-27 | 贵阳航空电机有限公司 | Torque-motor improved structure |
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085345A (en) * | 1975-11-19 | 1978-04-18 | Etablissements Carpano & Pons | Torque-limiting stop device |
| JPH09117093A (en) * | 1995-10-17 | 1997-05-02 | Denso Corp | Electric motor power steering system |
| US20100109492A1 (en) * | 2008-11-04 | 2010-05-06 | Mitsubishi Electric Corporation | Starter |
| CN101834486A (en) * | 2009-03-09 | 2010-09-15 | 贺雷 | Switch-off electronic motor and control system thereof |
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2012
- 2012-06-14 CN CN2012101966000A patent/CN102723816B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085345A (en) * | 1975-11-19 | 1978-04-18 | Etablissements Carpano & Pons | Torque-limiting stop device |
| JPH09117093A (en) * | 1995-10-17 | 1997-05-02 | Denso Corp | Electric motor power steering system |
| US20100109492A1 (en) * | 2008-11-04 | 2010-05-06 | Mitsubishi Electric Corporation | Starter |
| CN101834486A (en) * | 2009-03-09 | 2010-09-15 | 贺雷 | Switch-off electronic motor and control system thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899161A (en) * | 2015-12-21 | 2017-06-27 | 贵阳航空电机有限公司 | Torque-motor improved structure |
| CN106899161B (en) * | 2015-12-21 | 2023-06-02 | 贵阳航空电机有限公司 | Improved structure of torque motor |
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723816B (en) | 2013-12-18 |
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