CN102723816B - State feedback switch and limited angle torque motor using same - Google Patents
State feedback switch and limited angle torque motor using same Download PDFInfo
- Publication number
- CN102723816B CN102723816B CN2012101966000A CN201210196600A CN102723816B CN 102723816 B CN102723816 B CN 102723816B CN 2012101966000 A CN2012101966000 A CN 2012101966000A CN 201210196600 A CN201210196600 A CN 201210196600A CN 102723816 B CN102723816 B CN 102723816B
- Authority
- CN
- China
- Prior art keywords
- brush
- circuit board
- conducting
- state feedback
- torque motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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 applies this switch.
Background technology
Limited angle torque motor is a kind of motor that can directly drive load, can automatically reset and have certain self-locking moment.Limited angle torque motor, by regulating the direct current signal size and Orientation, is controlled the size and Orientation of motor corner with this.For the mechanism of doing back and forth movement in certain angle, for example interrupter, often need to adopt limited angle torque motor to be driven it.This limited angle torque motor wants cube little, lightweight and be convenient to control.
At present, the typical structure of limited angle torque motor comprises three types, is respectively circular ring type, end-surface type as shown in Figure 2 and electrodynamic type as shown in Figure 3 as shown in Figure 1.The weak point of existing circular ring type is, the gap between stator and rotor is larger, will make like this driving moment less than normal; The weak point of existing end-surface type is, the manufacturing process more complicated, and operating state obtains poor stability; Although existing electrodynamic type has larger driving moment, still has the problem of the aspects such as complex structure.As can be seen from Figure 3, be equipped with coil windings on DYN dynamic stator and rotor.Because the requirement of more its match parameter of coil windings is also just more, so, for the enterprise that produces the electrodynamic type limited angle torque motor, have to drop into the more resources of production on various coil windings processing problems.This also just means, because DYN dynamic coil windings difficulty of processing is large, makes the work resource of enterprise not only can not get effectively configuring, and is also limiting to a great extent the production efficiency of enterprise, has virtually increased the input cost of enterprise.
Along with production safety more and more is subject to people's attention, for the operating state staff of limited angle torque motor, need to obtain reliable and effective feedback information.Because motor can be normal, safe carry out work, directly have influence on the operating state of driven device.At present, comprise following three types for the state feedback switch on limited angle torque motor: Hall-type switch, tongue tube approach switch and sensitive switch as shown in Figure 4.Wherein, the Hall-type switch adopts the Hall switch signal as feedback signal, although have the advantages such as non-contact electric, low-power consumption, long life and high response frequency, its shortcoming is that power supply need to be arranged; The tongue tube approach switch, although belong to the passive switch signal, the operating current of small dimension is less than normal, useful life is limited; Although sensitive switch also belongs to the passive switch signal, and simple in structure and easy for installation, the poor reliability that its useful life is on the low side, the conducting scope is less, show conducting in prescribed limit.This is because sensitive switch only depends on a very little contact point of scope to complete conducting.For the limited angle torque motor moved reciprocatingly, most important operating state is embodied two break-in revolutions place.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 disconnects, simultaneously the state feedback blackout.If the conducting scope angle of limited angle torque motor state feedback defined is 5 °, the scope angle that sensitive switch can carry out effective Feedback may only only have 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 need to have higher adjustability.The parts of determining the finite angle size on limited angle torque motor are align member, this align member usually and the state feedback switch jointly arrange.As can be seen from Figure 4, sensitive switch is because its parts are more, complex structure, for the capable of regulating space that align member leaves little, so adopt the scope of application less of the limited angle torque motor of sensitive switch.
Summary of the invention
In view of this, the limited angle torque motor that the invention provides a kind of state feedback switch and apply this switch, the state feedback switch passes through to increase the conducting scope, and then makes the limited angle torque motor that this state feedback switch is set guarantee the reliability of operating state feedback.
For solving above technical problem, technical scheme of the present invention is, a kind of state feedback switch, comprise insulating circuit board, limit component and brush assembly of electric, described insulating circuit board is provided with two conducting bands, described two conducting bands are positioned at take on the annulus that the insulating circuit board center is round dot, and between two conducting bands, corresponding central angle is 90 ° ± 10 °, and central angle corresponding to conducting band conducting scope separately is 10 ° ± 5 °; The outside of described two conducting bands is provided with limit component; Described brush assembly of electric comprises brush and brush arm, the front end of brush arm is provided with brush, the brush of brush contacts with the conducting band, the end of brush arm is provided with connector, this connector is corresponding with the position at described insulating circuit board center, connector is for connecting outside rotating shaft, and the drive of brush arm by outside rotating shaft and limit component spacing makes brush move and realize switch conduction between two conducting bands.
Further, described limit component comprises two locating pieces, be provided with guide rail on the insulating circuit board in described two conducting bands outside, this guide rail and conducting band are positioned on same annulus, the center of circle angle of guide rail is 270 ° ± 10 °, described two locating pieces are connected with guide rail by slide block respectively, and described locating piece is provided with locking member, and locking member is for limiting the position of locating piece on insulating circuit board.
Further, described insulating circuit board is ceramic circuit board, on the contact-making surface of this ceramic circuit board and brush, is coated with wear-resistant material layer.
Further, on described brush arm, be provided with block, described brush is arranged on block.
A kind of limited angle torque motor, the cartridge assemblies that comprises hood and be arranged on hood inside, described hood comprises procapsid, back casing and bonnet, forms the first cavity between procapsid and back casing, forms the second cavity between back casing and bonnet; Described cartridge assemblies comprises rotating assembly, electromagnetic induction assembly and state feedback switch; Described rotating assembly is positioned on the central axis of hood and runs through procapsid and back casing; Described electromagnetic induction assembly correspondence is arranged on the position of rotating assembly in the first cavity, for power, generates; Described state feedback switch is arranged on the rotating assembly in the second cavity, for the feedback operation state; Insulating circuit board in described state feedback switch is fixed on a cross section in the second cavity, this cross section is vertical with rotating assembly, rotating assembly is connected with brush arm by the connector that is arranged on the brush arm end, and rotating assembly drives between two conducting bands of brush on insulating circuit board and moves by brush arm; Described two conducting bands are circumscribed with state indicating device by wire respectively.
Further, be connected with the resilience parts between described hood and 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 when a conducting band on insulating circuit board contacts, the reset force minimum of resilience parts; Brush when another conducting band on insulating circuit board contacts, the reset force maximum of resilience parts.
Further, described elastic reseting part is torsion spring, and torsion spring set is connected on rotating assembly, and an end of torsion spring is fixedly connected with described back casing, and the other end is fixedly connected with brush arm.
Further, be provided with floral disc on described rotating assembly, this floral disc is positioned at the end of rotating assembly, the card of floral disc is relative with bonnet and leave gap, be arranged at intervals with the two states sign on the card of described floral disc, state when the corresponding conducting band of a kind of status indicator contacts with brush, described bonnet is provided with form, corresponding status indicator on floral disc when this form is used for showing brush contact conducting band.
Further, described state indicating device is sound/light/electric generator, and when described brush contacts conducting respectively with two conducting bands, state indicating device is showed the two states indication.
Further, described electromagnetic induction assembly comprises rotor and stator, and described rotor is the rare-earth permanent magnet be attached on rotating assembly, and described stator is be fixed between forward and backward housing and be centered around the overlapped steel silicon chip of rare-earth permanent magnet excircle.
Compared with prior art, be provided with the conducting band with certain conducting scope in the state feedback switch on insulating circuit board, restriction by conducting band outside limit component, can make brush rotate in default finite angle scope, during when brush break-in revolution but still in original operating state, the brush of brush can be remained valid and contact with the conducting band in default conducting scope, so not only increased the conducting scope, also by state indicating device, for the corner torque motor that this state feedback switch is set, provide reliable state feedback signal simultaneously, and then guaranteed the work safety of motor.
The accompanying drawing explanation
The structural representation that Fig. 1 is the circular ring type limited angle torque motor;
The structural representation that Fig. 2 is the end-surface type limited angle torque motor;
The structural representation that Fig. 3 is the electrodynamic type limited angle torque motor;
The structural representation that Fig. 4 is sensitive switch;
The perspective view that Fig. 5 is state feedback switch in the present invention;
The front view that Fig. 6 is Fig. 5;
The left view that Fig. 7 is Fig. 6;
The structural representation that Fig. 8 is insulating circuit board in the state feedback switch;
The cross-sectional view that Fig. 9 is limited angle torque motor in the present invention.
In 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, comprise the insulating circuit board with the conducting band at the state feedback switch, brush assembly of electric can be remained and the contacting of conducting band on the conducting scope of regulation, increase effective conducting scope of conducting band with this, and then provide reliable feedback states for the limited angle torque motor that this state feedback switch is set.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Referring to Fig. 5 to Fig. 8, a kind of state feedback switch, comprise insulating circuit board, limit component and brush assembly of electric.Wherein, insulating circuit board is ceramic circuit board 1, is provided with two conducting bands 2 and guide rail 3 on this ceramic circuit board 1; Limit component 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 an annulus of ceramic circuit board.Guide rail 3 is positioned at the outside of two conducting bands 2.Wherein, between two conducting bands 2, corresponding central angle is 90 ° ± 10 °, and central angle corresponding to each conducting band 2 conducting scope separately is 10 ° ± 5 °, and the corresponding central angle of guide rail 3 is 270 ° ± 10 °.
For compact installation of the convenient rotating assembly with limited angle torque motor, 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.
As shown in Fig. 5 to Fig. 7, two locating pieces 4 are arranged on guide rail 3.Can form and be slidably connected by slide block between locating piece 4 and guide rail 3.Also be provided with locking member on locating piece 4, locking member is for limiting the position of locating piece on insulating circuit board.
In the present embodiment, slide block and locking member are same parts, and clamping screw 9.Forming the setting be slidably connected between locating piece 4 and guide rail 3, is in order to facilitate the user to adjust the angle between locating piece 4 by the needs of oneself, and then enlarges the scope of application of limited angle torque motor.And, using the i.e. setting as slide block as locking member of clamping screw 9, be in order to reduce the number of components on the state feedback switch, simplify the structure of state feedback switch with this, and then reduce production difficulty and production cost.
As can be seen from the figure locating piece 4 itself is provided with the groove consistent with guide rail 3 shapes, and the setting of this groove is in order to facilitate the adjustment of locating piece 4 on guide rail 3.
Locating piece 4 in the detailed process of ceramic circuit board 1 adjusted position is: the user determined the angle between two locating pieces 4 as required, and the scope that locating piece 4 can move is consistent with the corresponding central angle of guide rail 3; Behind the position of intended orientation piece 4, loosen clamping screw 9, by clamping screw 9, make locating piece 4 slide into precalculated position along the track of guide rail 3; After locating piece 4 arrives precalculated position, screw clamping screw 9, locating piece 4 is locked on guide rail 3, the locking degree is as the criterion to meet the positioning function of locating piece 4 on ceramic circuit board 1.Owing to locating in order to realize in the course of the work, locating piece 4 can be subject to the direct impact from outside, so after locating piece 4 is adjusted to precalculated position, can fill the material of upper fluid sealant and so in groove on locating piece 4, cushion with this impulsive force that locating piece 4 is subject to, and then make locating piece 4 fully play the effect of location.
As shown in Fig. 5 to Fig. 8, the front end of brush arm 7 is provided with brush 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 that this outside rotating shaft is the rotating assembly of limited angle torque motor in order can conveniently to be connected with outside rotating shaft.Because the outside of two conducting bands 2 is respectively arranged with a locating piece 4, again because brush arm 7 tail ends are connected with rotating assembly by connector, so it is the center of circle that brush 5 can only be take the mid point of ceramic circuit board 1, in (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, be also in order to protect the brush arm 7 can be because of with locating piece 4, clashing into fast and be damaged.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.
While moving between two conducting bands 2 on ceramic circuit board due to brush 5, 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 the useful life of prolongation state feedback switch, so be coated with wear-resistant material layer on the contact-making surface of ceramic circuit board 1, this wear-resistant material layer is adamantine layer.
By the state feedback switch be have been described in detail, the structure that shows the limited angle torque motor to this state feedback switch is set is described further, specific as follows:
Referring to Fig. 9, a kind of limited angle torque motor, the cartridge assemblies that comprises hood and be arranged on hood inside.
Hood comprises procapsid 11, back casing 13 and bonnet 14.As can be seen from the figure, hood comprises two cavitys, and the first cavity and the second cavity, form the first cavity between procapsid 11 and back casing 13, forms the second cavity between back casing 13 and bonnet 14.
Cartridge assemblies 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, back casing 13 and regulate pad 17.The effect of regulating pad 17 is to eliminate gap to guarantee the stability of rotating assembly 10 in hood.The leading portion of rotating assembly 10 stretches out procapsid 11, realizes the output of power for connecting driven device; The stage casing of rotating assembly 10 is positioned at the first cavity, and electromagnetic induction assembly correspondence is arranged on the residing position of this section rotating assembly 10 and generates for power; The back segment of rotating assembly 10 is positioned at the second cavity, and for the state feedback switch is set, the state feedback switch is to show for the break-make of state feedback; Leave certain intervals between the end of rotating assembly 10 and bonnet 14.
After through hole 8 on the ceramic circuit board 1 that rotating assembly 10 passes in the state feedback switch, with the connector of brush assembly of electric center brush arm 7 ends, be connected.Wherein, ceramic circuit board 10 is fixed on the Shang，Gai cross section, a cross section of bonnet 5 perpendicular to rotating assembly 10.Leave gap between through hole 8 and rotating assembly 10, that is to say that rotating assembly 10 is in the process of rotating, ceramic circuit board 1 is not synchronizeed rotation with rotating assembly 10, brush arm 7 drives brushes 5 by rotating assembly 10 and is rotated, and the track that brush 5 rotates is the annulus between two conducting bands 2 on ceramic circuit board 1.
One of characteristics of limited angle torque motor are can self-locking, the shortcomings such as the self-lock ability existed in the contrast prior art is poor, the present invention is provided with the resilience parts on limited angle torque motor, to strengthen the self-lock ability of limited angle torque motor, it is 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 the brush arm 7 in brush assembly of electric.As long as the setting of resilience parts can meet the following conditions: brush 5 when on ceramic circuit board 1, one of them conducting band 2 contacts, the reset force minimum; Brush 5 when on ceramic circuit board 1, another conducting band contacts, the reset force maximum.Simultaneously, by the physical property of resilience parts self, can provide certain self-locking moment for limited angle torque motor.
For the ability of automatically reseting can be provided better, therefore reset components adopts following preferred embodiment:
Using torsion spring 16 as the resilience parts that connect 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 other end is fixedly connected with brush arm 7 through the through hole 8 on ceramic circuit board 1.Torsion spring 16 drives brush assembly of electric and the automatically reset process of rotating shaft is:
(1) when limited angle torque motor cuts off the power supply, the brush 5 be arranged on brush arm 7 contacts with a conducting band 2 on ceramic circuit board 1, be decided to be initial position, the 0 ° of position namely indicated in Fig. 7, now the reset force minimum of torsion spring 16 in the whole course of work.
(2) when limited angle torque motor is switched on, by 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 service position, 90 ° of positions that namely indicate in Fig. 7, now the reset force maximum of torsion spring 16 in the whole course of work.
(3) when limited angle torque motor cuts off the power supply again, rotating assembly 10 is removed power, and torsion spring 16 resets to initial position by the effect drive brush arm 7 of reset force from 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 drives brush arm 7 revolution, rotating assembly 10 is too because the reset force of torsion spring 16 is automatically reset.
In order to facilitate the staff to monitor in real time operating state, so be provided with the state exhibiting device on limited angle torque motor, this state exhibiting device comprises sound/light of being connected with the state feedback switch wire/electric generator, and is arranged on the floral disc 15 that rotating assembly 10 ends are positioned at the second cavity.
Wherein, sound/light/electric generator comprises respectively two kinds of indicating status, 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 contacts with the conducting band 2 of initial position, green light is bright; When brush 5 contacts with the conducting band 2 of service position, when red.
The setting of floral disc is by simple mechanical rotation, the clear and definite residing operating state of displaying limited angle torque motor to the staff.Its concrete structure arranges as follows:
The card of floral disc 15 is relative with bonnet 14 intervals, is arranged at intervals with the two states sign on the card of floral disc 15, and this status indicator is respectively initial marking and work sign.Bonnet 14 is provided with form, for showing status indicator set on floral disc 15.When brush 5 contacts with the conducting band 2 of initial position, initial marking turns to the form place and shows the initial condition of motor to the staff; When brush 5 contacts with the conducting band 2 of service position, the work sign turns to the form place and shows the operating state of motor to the staff.
Known by the analysis to existing limited angle torque motor type, DYN dynamic structure has large this advantage of driving moment, but still has complex structure, is unfavorable for that manufacturing enterprise makes the problem of processing.Mainly because be equipped with coil windings on rotor and stator, therefore corresponding match parameter is various.Also done corresponding improvement for this problem in 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 rotating assembly 10, and stator is set to be centered around the overlapping steel silicon chip 19 of rare-earth permanent magnet 18 excircles.At the hood upper fixed line coil assembly 12 of steel silicon chip 19 correspondences to increase magnetic permeability.This set has not only been simplified the structure of limited angle torque motor, facilitate the making processing of manufacturing enterprise, also met the demand of user to driving moment simultaneously, the i.e. setting as stator as the steel silicon chip 19 of rotor, stack by rare-earth permanent magnet 18 under equal volume, can significantly increase actuating force of the present invention.
Be below only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with the claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a state feedback switch, it is characterized in that, comprise insulating circuit board, limit component and brush assembly of electric, described insulating circuit board is provided with two conducting bands, described two conducting bands are positioned at take on the annulus that the insulating circuit board center is round dot, between two conducting bands, corresponding central angle is 90 ° ± 10 °, and central angle corresponding to conducting band conducting scope separately is 10 ° ± 5 °; The outside of described two conducting bands is provided with limit component; Described brush assembly of electric comprises brush and brush arm, the front end of brush arm is provided with brush, the brush of brush contacts with the conducting band, the end of brush arm is provided with connector, this connector is corresponding with the position at described insulating circuit board center, connector is for connecting outside rotating shaft, and the drive of brush arm by outside rotating shaft and limit component spacing makes brush move and realize switch conduction between two conducting bands.
2. state feedback switch as claimed in claim 1, it is characterized in that, described limit component comprises two locating pieces, be provided with guide rail on the insulating circuit board in described two conducting bands outside, this guide rail and conducting band are positioned on same annulus, and the center of circle angle of guide rail is 270 ° ± 10 °, and described two locating pieces are connected with guide rail by slide block respectively, described locating piece is provided with locking member, and locking member is for limiting the position of locating piece on insulating circuit board.
3. state feedback switch as claimed in claim 1, is characterized in that, described insulating circuit board is ceramic circuit board, on the contact-making surface of this ceramic circuit board and brush, is coated with wear-resistant material layer.
4. state feedback switch as claimed in claim 1, is characterized in that, on described brush arm, is provided with block, and described brush is arranged on block.
5. a limited angle torque motor, the cartridge assemblies that comprises hood and be arranged on hood inside, described hood comprises procapsid, back casing and bonnet, form the first cavity between procapsid and back casing, form the second cavity between back casing and bonnet, it is characterized in that, described cartridge assemblies comprises rotating assembly, electromagnetic induction assembly and state feedback switch as described as any one in claim 1-4; Described rotating assembly is positioned on the central axis of hood and runs through procapsid and back casing; Described electromagnetic induction assembly correspondence is arranged on the position of rotating assembly in the first cavity, for power, generates; Described state feedback switch is arranged on the rotating assembly in the second cavity, for the feedback operation state; Insulating circuit board in described state feedback switch is fixed on a cross section in the second cavity, this cross section is vertical with rotating assembly, rotating assembly is connected with brush arm by the connector that is arranged on the brush arm end, and rotating assembly drives between two conducting bands of brush on insulating circuit board and moves by brush arm; Described two conducting bands are circumscribed with state indicating device by wire respectively.
6. limited angle torque motor as claimed in claim 5, is characterized in that, is connected with the resilience parts between described hood and 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 when a conducting band on insulating circuit board contacts, the reset force minimum of resilience parts; Brush when another conducting band on insulating circuit board contacts, the reset force maximum of resilience parts.
7. limited angle torque motor as claimed in claim 6, is characterized in that, described resilience parts are torsion spring, and torsion spring set is connected on rotating assembly, and an end of torsion spring is fixedly connected with described back casing, and the other end is fixedly connected with brush arm.
8. limited angle torque motor as claimed in claim 5, it is characterized in that, be provided with floral disc on described rotating assembly, this floral disc is positioned at the end of rotating assembly, the card of floral disc is relative with bonnet and leave gap, is arranged at intervals with the two states sign on the card of described floral disc, state when the corresponding conducting band of a kind of status indicator contacts with brush, described bonnet is provided with form, corresponding status indicator on floral disc when this form is used for showing brush contact conducting band.
9. limited angle torque motor as claimed in claim 5, is characterized in that, described state indicating device is sound/light/electric generator, and when described brush contacts conducting respectively with two conducting bands, state indicating device is showed the two states indication.
10. limited angle torque motor as claimed in claim 5, it is characterized in that, described electromagnetic induction assembly comprises rotor and stator, described rotor is the rare-earth permanent magnet be attached on rotating assembly, and described stator is be fixed between forward and backward housing and 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723816A CN102723816A (en) | 2012-10-10 |
| CN102723816B true CN102723816B (en) | 2013-12-18 |
Family
ID=46949512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101966000A Active CN102723816B (en) | 2012-06-14 | 2012-06-14 | State feedback switch and limited angle torque motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723816B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085345A (en) * | 1975-11-19 | 1978-04-18 | Etablissements Carpano & Pons | Torque-limiting stop device |
| CN101834486A (en) * | 2009-03-09 | 2010-09-15 | 贺雷 | Switch-off electronic motor and control system thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09117093A (en) * | 1995-10-17 | 1997-05-02 | Denso Corp | Electric motor power steering system |
| JP4598114B2 (en) * | 2008-11-04 | 2010-12-15 | 三菱電機株式会社 | Starter |
-
2012
- 2012-06-14 CN CN2012101966000A patent/CN102723816B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085345A (en) * | 1975-11-19 | 1978-04-18 | Etablissements Carpano & Pons | Torque-limiting stop device |
| CN101834486A (en) * | 2009-03-09 | 2010-09-15 | 贺雷 | Switch-off electronic motor and control system thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-117093A 1997.05.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723816A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101577448A (en) | Fan-shaped motor | |
| JP2012125088A (en) | Electromechanical device, robot and wheel | |
| CN102723816B (en) | State feedback switch and limited angle torque motor using same | |
| CN103607097A (en) | Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device | |
| CN104506015A (en) | Magnetic transmission device | |
| CN109412335B (en) | Limited angle motor for electromechanical igniter | |
| CN205334037U (en) | Auto -change over device is broadcast to projection lens wheel | |
| CN104967363A (en) | Motor electrifying braking device | |
| CN105427762B (en) | A kind of three surface-turning advertising placard system | |
| CN205986519U (en) | Ptz motor and yun tai | |
| CN207124500U (en) | A kind of magnet steel full-embedded type concentratred winding latent oil permasyn morot | |
| CN103915980A (en) | Disc-shaped rotary-plate permanent magnetic coupler | |
| CN203457031U (en) | Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device | |
| CN202872608U (en) | Annular eddy current coupler | |
| CN204179229U (en) | A kind of satellite antenna transmission locking device | |
| CN210780496U (en) | Electromagnetic clutch with built-in permanent magnet | |
| CN203840182U (en) | High-dynamic moving magnetic type linear rotation integrated two-degree-of-freedom motor | |
| CN105429426A (en) | Concentrating magnetic coupler | |
| CN210769938U (en) | Split type electromagnetic brake | |
| CN207664847U (en) | A kind of plug-in type permanent magnet direct current motor | |
| CN202059289U (en) | Parallel movable type permanent-magnet generator with disks | |
| CN203800798U (en) | Disk-like turnplate permanent magnetic coupler | |
| CN104658738B (en) | A kind of rotary magnet device capable of reversing | |
| CN104506012A (en) | Rare-earth permanent magnet brushless DC motor used for gating | |
| CN203979205U (en) | A kind of drive mechanism with clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |