CN107845513B - Electric operating mechanism and switch device - Google Patents
Electric operating mechanism and switch device Download PDFInfo
- Publication number
- CN107845513B CN107845513B CN201711288948.1A CN201711288948A CN107845513B CN 107845513 B CN107845513 B CN 107845513B CN 201711288948 A CN201711288948 A CN 201711288948A CN 107845513 B CN107845513 B CN 107845513B
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- electric operating
- abutting
- operating mechanism
- arm
- motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The electric operating mechanism of the switch device comprises a fixed frame (10), a motor (20), a reduction gear (30), an abutting piece (40), a shifting piece (50) and a micro switch unit (60), wherein the motor is provided with an output gear (21), the reduction gear is in transmission connection with the output gear, the abutting piece is provided with abutting parts (41) and can coaxially and synchronously rotate with the reduction gear, the shifting piece is rotatably connected with the fixed frame, the abutting piece can push the shifting piece to rotate to th position through the abutting parts in the rotating process, the micro switch unit controls a power supply circuit of the motor, the shifting piece located in the th position can abut against the micro switch unit to disconnect a normally closed contact of the micro switch unit, so that the power supply circuit of the motor is disconnected, the electric operating mechanism can timely stop the motor at a fixed position after the opening/closing is completed, and the cost is reduced.
Description
Technical Field
The present invention relates to an electric operating mechanism, and more particularly, to kinds of electric operating mechanisms capable of stopping a motor at a fixed position after completion of opening/closing, and kinds of switching devices including the electric operating mechanisms.
Background
After the electric operating mechanism of the switching device receives an opening/closing command, a motor of the switching device rotates to drive a spindle gear of a driving mechanism to rotate so as to realize opening/closing, and after the opening/closing is finished, the motor of the electric operating mechanism needs to be stopped at a fixed position in time so as to start rotations.
Disclosure of Invention
The object of the present invention is to provide kinds of electric operating mechanisms and a switch device including the same, the electric operating mechanisms can stop a motor at a fixed position after completing opening/closing and have low cost.
The invention provides an electric operating mechanism of a switch device, which is used for driving a main shaft gear of a driving mechanism and comprises fixed frames, 0 motors, 1 reduction gears, abutting pieces, stirring pieces and micro-switch units, wherein the motors are connected with the fixed frames and are provided with output gears, the reduction gears are respectively in transmission connection with the output gears and the main shaft gear, the abutting pieces are provided with abutting parts and can coaxially and synchronously rotate with the reduction gears, the stirring pieces are rotatably connected with the fixed frames, the rotating axes of the stirring pieces are parallel to the rotating axes of the reduction gears, the abutting pieces can push the stirring pieces to rotate to th positions through the abutting parts in the process of rotating along with the reduction gears, the micro-switch units control power supply circuits of the motors, and the stirring pieces positioned at the th positions can abut against the micro-switch units to disconnect normally closed contacts of the micro-switch units, so that the power supply circuits of the motors are disconnected.
The electric operating mechanism can stop the motor of the electric operating mechanism at a fixed position in time after switching-on/switching-off is completed so as to start rotations, and the electric operating mechanism realizes the functions by the abutting piece, the shifting piece and the micro switch unit, so that the cost is reduced compared with an MCU (micro control unit).
In another exemplary embodiments of the electric operating mechanism, the fixed frame comprises fixed plates and second fixed plates which are oppositely arranged, the fixed plate is provided with th holes, the second fixed plate is provided with second holes opposite to the th holes, and the two ends of the toggle piece on the rotation axis of the toggle piece are respectively and rotatably inserted in the th hole and the second hole.
In yet another exemplary embodiment of the electric operating mechanism, the toggle member includes shaft plates, 0 a 1 th arm and 2 a second arm, the shaft plates extend along the rotation axis of the toggle member, the shaft plates are rotatably inserted into a th hole and a second hole at both ends of the rotation axis, respectively, the th arm is connected with the shaft plate, the toggle member located at the th position abuts against the abutting portion by the th arm, the second arm is connected with the shaft plate, the toggle member abuts against the microswitch unit by the second arm, the second arm has stopper portions, the second fixing plate also has stopper holes, the stopper portions are inserted into the stopper holes to limit the rotation range of the toggle member, the toggle member is prevented from falling under the action of gravity, the toggle member is simple in structure and easy to process, the toggle member can be more flexibly shaped by the th arm and the second arm, the abutting portion of the th arm can abut against the abutting against the mechanism, the abrasion can be prolonged in service life, and the toggle member can be conveniently abutted from both directions.
In yet another exemplary embodiments of the electric operating mechanism, the th arm and the second arm are oppositely arranged, so that excessive abutting of the micro switch unit can be avoided, and the service life of the micro switch unit can be prolonged.
In still another exemplary embodiments of the electric operating mechanism, the arm is bent to have a V-shape, and the V-shaped top end of the arm protrudes toward the rotation axis of the reduction gear, the shifting member at the th position abuts against the abutting portion by the V-shaped top end of the arm, the V-shaped structure of the arm makes the end far away from the rotation axis of the shifting member far away from the abutting member, and the influence on the rotation of the abutting member can be effectively avoided.
In still another exemplary embodiments of the electric operating mechanism, the bending angle of the arm is obtuse, so that the rotating speed of the toggle piece when the toggle piece is abutted by the abutting piece can be reduced, and the impact on the micro switch can be reduced.
In yet another exemplary embodiments of the electric operating mechanism, the V-shaped top end of the arm is rounded, thereby reducing contact wear between the arm and the abutment.
In yet another exemplary embodiments of the electric operating mechanism, the micro-switch unit includes th micro-switches and second micro-switches, the toggle member located at th position can abut against the th micro-switch to disconnect the power supply circuit of the motor in the reverse rotation state, the toggle member located at th position can abut against the second micro-switch to disconnect the power supply circuit of the motor in the forward rotation state, thereby facilitating maintenance of the apparatus.
In still another exemplary embodiments of the electric operating mechanism, the abutting member is connected to the axial end face of the reduction gear, thereby the connection between the abutting member and the reduction gear is more stable and the coaxial synchronous rotation of the abutting member and the reduction gear is ensured.
In still another exemplary embodiments of the electric operating mechanism, the abutting part of the abutting piece can be in contact transmission with the spindle gear, so that the abutting piece can realize the dual functions of abutting against the shifting piece and in contact transmission with the spindle gear, and the structure of the electric operating mechanism is more compact.
In still another exemplary embodiments of the electric operating mechanism, the abutting portion comprises two convex arms, notches are formed between the two convex arms, the abutting piece can push the shifting piece to rotate to the th position through the convex arms respectively in the process of forward rotation and reverse rotation, and the abutting portion can engage with the spindle gear through the two convex arms.
The invention also provides switching devices, which comprise driving mechanisms and electric operating mechanisms, wherein the driving mechanism is provided with spindle gears, a reduction gear of the electric operating mechanism is in transmission connection with the spindle gears, the electric operating mechanism can stop a motor of the electric operating mechanism at a fixed position in time after switching-on/switching-off is completed so as to start rotations, and the electric operating mechanism realizes the functions by the abutting piece, the shifting piece and the micro-switch unit, so that compared with an MCU (micro control unit), the production cost of the switching device is reduced.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is an exploded view of exemplary embodiments of an electrically operated mechanism of a switchgear.
Fig. 2 is a combined state diagram of the electric operating mechanism shown in fig. 1.
Fig. 3 is a schematic structural diagram of a toggle piece of the electric operating mechanism shown in fig. 1.
Fig. 4 and 5 show the operation of the electric operating mechanism shown in fig. 1.
Fig. 6 is a schematic diagram of another exemplary embodiments of an electric operating mechanism.
Description of the reference symbols
10 fixed mount
11 st fixed plate
13 th th hole
12 second fixing plate
14 second hole
15 limiting hole
20 electric machine
21 output gear
30 reduction gear
40 abutting piece
41 abutting part
42 convex arm
43 notch
50 toggle piece
54 axle plate
51 st th arm
52 second arm
53 position limiting part
60 micro-switch unit
61 st micro switch
62 a second microswitch.
Detailed Description
In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.
In this document, "exemplary" means "serving as an example, instance, or illustration," and any illustration, embodiment, or portion thereof that is described herein as "exemplary" is not to be construed as being preferred or advantageous.
In this context, "drive connection" may be interpreted as a direct drive connection or as an indirect drive connection via third parties.
Fig. 1 is an exploded view of schematic embodiments of an electric operating mechanism of a switchgear, fig. 2 is a corresponding assembled state diagram, the working state of which is shown in fig. 4 and 5, the electric operating mechanism is used for driving a spindle gear of a driving mechanism, and as shown, the electric operating mechanism comprises fixed frames 10, motors 20, reduction gears 30, abutting pieces 40, stirring pieces 50 and micro switch units 60.
The motor 20 is connected with the fixed frame 10 and is provided with output gears 21, the reduction gear 30 is in transmission connection with the output gears 21, the reduction gear 30 is also in transmission connection with a main shaft gear of a driving mechanism of a switching device to drive the driving mechanism to realize switching-on/off, the abutting piece 40 is provided with abutting parts 41 and can rotate coaxially and synchronously with the reduction gear 30, in the illustrative embodiment, the abutting piece 40 is connected to an axial end face of the reduction gear 30, so that the connection between the abutting piece 40 and the reduction gear 30 is more stable, and the coaxial and synchronous rotation of the abutting piece and the reduction gear is ensured.
The dial 50 is rotatably connected to the fixed frame 10, and the rotation axis (see the upper right chain line in fig. 2) thereof is parallel to the rotation axis (see the lower left chain line in fig. 2) of the reduction gear 30. the abutting member 40 can push the dial 50 to rotate to th positions by the abutting portion 41 during the rotation with the reduction gear 30, and the dial 50 at the th position is shown in fig. 4 and 5.
The toggle element 50 at the th position can abut against the micro switch unit 60 to open the normally closed contact of the micro switch unit 60, thereby opening the power supply circuit of the motor 20.
After the electric operating mechanism receives a closing command, the motor 20 rotates in the forward direction, the output gear 21 of the motor 20 drives the reduction gear 30 to rotate clockwise from the position shown in fig. 4, the reduction gear 30 drives the driving mechanism to close, after closing is completed, the reduction gear 30 continues to rotate under the driving of the motor 20, when the reduction gear rotates to the position shown in fig. 5, the abutting part 40 connected with the reduction gear 30 pushes the toggle part 50 to rotate to the th position through the abutting part 41, the toggle part 50 at the th position abuts against the micro switch unit 60, the power supply circuit of the motor 20 is disconnected, the motor 20 stops rotating, and a closing command is waited.
After the electric operating mechanism receives a switching-off command, the motor 20 rotates in reverse direction, the output gear 21 of the motor 20 drives the reduction gear 30 to rotate counterclockwise from the position shown in fig. 5, the reduction gear 30 drives the driving mechanism to realize switching-off, after the switching-off is completed, the reduction gear 30 is driven by the motor 20 to continue rotating, when the reduction gear rotates to the position shown in fig. 4, the abutting piece 40 connected with the reduction gear 30 pushes the shifting piece 50 to rotate to the th position through the abutting part 41, the shifting piece 50 at the position abuts against the micro switch unit 60, the power supply circuit of the motor 20 is disconnected, the motor 20 stops rotating, and a switching-on command is waited.
The electric operating mechanism can stop the motor of the electric operating mechanism at a fixed position (namely the position of the motor in the states of fig. 4 and 5) in time after the switching-on/switching-off is completed so as to start rotations, and the electric operating mechanism realizes the functions by the abutting piece, the shifting piece and the micro switch unit, thereby reducing the cost compared with an MCU (micro control unit).
In the illustrated embodiment, the fixing frame 10 includes first fixing plates 11 and second fixing plates 12 which are oppositely arranged, first holes 13 are formed in the first fixing plates 11 (see fig. 4 and 5), second holes 14 which are opposite to the holes 13 are formed in the second fixing plates 12, and the two ends of the toggle element 50 on the rotation axis thereof are rotatably inserted into the holes 13 and the second holes 14 respectively.
As shown in fig. 3, in the exemplary embodiment, the dial 50 includes shaft plates 54, the th arm 51, and the second arm 52, the shaft plates 54 extend along the rotational axis of the dial 50, and the shaft plates 54 are rotatably inserted into the th hole 13 and the second hole 14 at both ends of the rotational axis, respectively.
The th arm 51 is connected with the shaft plate 54, the shifting member 50 at the th position is abutted against the abutting part 41 of the abutting member 40 through the th arm 51, the abutting part 41 is abutted through the th arm 51, the contact abrasion can be reduced compared with the point contact, the service life of the mechanism is prolonged, and the abutting member 40 is convenient to contact the shifting member from two directions, the second arm 52 is connected with the shaft plate 54, the shifting member 50 is abutted against the microswitch unit 60 through the second arm 52, the second arm 52 is provided with limiting parts 53, the second fixing plate 12 is further provided with limiting holes 15, the limiting parts 53 are inserted into the limiting holes 15 to limit the rotating range of the shifting member 50 and prevent the shifting member 50 from rotating and falling under the action of gravity, the shifting member has a simple structure and is easy to process, and the function of the shifting member 50 can be realized without causing interference to other parts through the th arm 51 and the second arm 52.
In still another exemplary embodiments of the electric operating mechanism, the arm 51 and the second arm 52 are oppositely arranged, when the toggle piece 50 is located at the th position, the arm 51 abuts against the abutting piece 40, and the second arm 52 abuts against the micro switch unit 60, because the th arm 51 and the second arm 52 are oppositely arranged, the directions of the two abutting forces are approximately opposite, so that the th arm 51 and the second arm 52 can slightly deform to approach each other under the action of the two abutting forces, thereby avoiding excessive abutting of the micro switch unit 60 and prolonging the service life of the micro switch unit 60.
In another exemplary embodiments of the electric operating mechanism, the arm 51 is bent in a V shape in a view along the axis of the toggle member 50, and the V-shaped tip thereof protrudes toward the rotation axis of the reduction gear 30, the toggle member 50 at the position abuts against the abutting portion 41 via the V-shaped tip of the arm 51, the V-shaped structure of the arm 51 makes the end away from the rotation axis of the toggle member away from the abutting member 40, so that the influence on the rotation of the abutting member 40 can be effectively avoided.
In still another exemplary embodiments of the electric operating mechanism, the bending angle of the arm 51 bent in a V-shape is an obtuse angle, i.e., the vertex angle of the V-shape is an obtuse angle, compared with a smaller angle (a right angle or an acute angle), the obtuse angle can reduce the rotational speed of the toggle member 50 when the toggle member 50 is abutted and rotated by the abutting member 40, and reduce the impact on the micro switch unit 60.
In yet another exemplary embodiments of the electric operating mechanism, the V-shaped top end of the arm 51 is rounded, thereby reducing contact wear of the arm 51 and the abutting member 40.
In the illustrative embodiment, the micro switch unit 60 includes micro switches 61 and 0 second micro switches 62, the 1 th micro switch 61 and the second micro switch 62 are, for example, -opening -closing type micro switches, the dial 50 at the th position can abut against the th micro switch 61 to disconnect the power supply circuit of the motor 20 in the reverse rotation state, the dial 50 at the th position can abut against the second micro switch 62 to disconnect the power supply circuit of the motor 20 in the forward rotation state, the maintenance of the apparatus is facilitated by such arrangement, but not limited thereto, in other illustrative embodiments, the micro switch unit is, for example, provided as two-opening two-closing type micro switches or zero-opening two-closing type micro switches, and the dial at the th position can abut against the two-opening two-closing type micro switches or the zero-opening two-closing type micro switches to disconnect the power supply circuits of the motor in the forward rotation and reverse rotation states.
Fig. 6 is a schematic structural diagram of another exemplary embodiments of the electric operating mechanism, which is the same as or similar to the electric operating mechanism shown in fig. 1, and is not repeated, except that the abutting portion 41 of the abutting member 40 can be in contact with the spindle gear for transmission, so that the abutting member can perform the dual functions of abutting against the toggle member and contacting with the spindle gear for transmission, and the structure of the electric operating mechanism is more compact.
The invention also provides switching devices, in exemplary embodiments of the switching devices, the switching devices comprise driving mechanisms and electric operating mechanisms shown in figure 1, each driving mechanism is provided with spindle gears, a reduction gear 30 of each electric operating mechanism is in transmission connection with each spindle gear, each electric operating mechanism can stop a motor of each electric operating mechanism at a fixed position in time after switching-on/switching-off is completed so as to start rotations, and the electric operating mechanisms realize the functions through the abutting pieces, the shifting pieces and the micro-switch units, so that compared with an MCU (micro control unit), the production cost of the switching devices is reduced.
In another exemplary embodiments of the switch device, the switch device comprises driving mechanisms and electric operating mechanisms shown in fig. 6, wherein the driving mechanism comprises spindle gears, the abutting part 41 can engage with the spindle gears through two convex arms 42 to drive the spindle gears to rotate, and therefore the abutting part can realize double functions of abutting against the shifting part and engaging with the spindle gears, so that the structure of the switch device is more compact.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment contains independent technical solutions, and this description is only for clarity, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be combined appropriately to form other embodiments that can be understood by those skilled in the art.
The series specification listed above is only a specific description of possible embodiments of the invention, and they are not intended to limit the scope of the invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the invention, are intended to be included in the scope of the invention.
Claims (10)
1. An electric operating mechanism of a switch device for driving a spindle gear of a driving mechanism, comprising:
fixing frames (10);
motors (20) which are connected with the fixed frame (10) and are provided with output gears (21);
reduction gears (30) in transmission connection with the output gear (21) and the main shaft gear respectively;
characterized in that, the electric operating mechanism further comprises:
abutting pieces (40) which are provided with abutting parts (41) and can coaxially and synchronously rotate with the reduction gear (30), shifting pieces (50) which are rotatably connected with the fixed frame (10) and the rotating axis of which is parallel to the rotating axis of the reduction gear (30), wherein the abutting pieces (40) can push the shifting pieces (50) to rotate to th positions by the abutting parts (41) in the process of rotating with the reduction gear (30), and
micro switch units (60) controlling the power supply circuit of the motor (20), the toggle piece (50) at the th position can abut against the micro switch units (60) to open the normally closed contact of the micro switch units (60), thereby opening the power supply circuit of the motor (20);
the fixed frame (10) comprises first fixed plates (11) and second fixed plates (12) which are oppositely arranged, wherein first holes (13) are formed in the fixed plates (11), second holes (14) opposite to the holes (13) are formed in the second fixed plates (12), and two ends of the toggle piece (50) on the rotation axis are respectively and rotatably inserted into the holes (13) and the second holes (14);
the toggle member (50) includes:
shaft plates (54) extending along the rotation axis of the toggle piece (50), wherein the two ends of the shaft plates (54) on the rotation axis are respectively and rotatably inserted in the hole (13) and the second hole (14);
the th arm (51) connecting the shaft plate (54), the shifting member (50) at the th position abutting against the abutting part (41) through the th arm (51), and
second arms (52) which are connected with the shaft plate (54), the toggle piece (50) is abutted against the micro switch unit (60) through the second arms (52), the second arms (52) are provided with limiting parts (53), the second fixing plate (12) is further provided with limiting holes (15), and the limiting parts (53) are inserted in the limiting holes (15) so as to limit the rotating range of the toggle piece (50).
2. Electric operating mechanism according to claim 1, characterized in that said -th arm (51) and said second arm (52) are oppositely arranged.
3. The electric operating mechanism according to claim 1, wherein the th arm (51) is curved in a V-shape with its V-shaped tip projecting toward the rotational axis of the reduction gear (30), and the toggle member (50) at the th position abuts against the abutment (41) by the V-shaped tip of the th arm (51).
4. The electric operating mechanism according to claim 3, wherein the bending angle at which the -th arm (51) is bent in a V-shape is an obtuse angle.
5. Electric operating mechanism according to claim 3, characterised in that the V-shaped tip of the arm (51) is rounded.
6., the electric operating mechanism according to any of claims 1-5, characterized in that the microswitch unit (60) comprises th microswitches (61) and second microswitches (62), the toggle piece (50) at the th position can abut against the th microswitches (61) to disconnect the power supply circuit of the motor (20) in the reverse rotation state, and the toggle piece (50) at the th position can abut against the second microswitches (62) to disconnect the power supply circuit of the motor (20) in the forward rotation state.
7. The electric operating mechanism according to claim 1, wherein the abutting piece (40) is connected to an axial end face of the reduction gear (30).
8. Electric operating mechanism according to claim 7, characterized in that the abutment (41) of the abutment (40) is capable of driving in contact with the spindle gear.
9. The electric operating mechanism according to claim 8, wherein the abutting portion (41) comprises two protruding arms (42), notches (43) are formed between the two protruding arms (42), the abutting member (40) can push the toggle member (50) to rotate to the th position through protruding arms (42) respectively in the forward rotation and the reverse rotation, and the abutting portion (41) can engage with the spindle gear through the two protruding arms (42).
10. A switching device, comprising:
drive mechanisms having spindle gears, and
electric operating mechanisms according to any of claims 1 to 9, the reduction gear (30) of which is in geared connection with the spindle gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288948.1A CN107845513B (en) | 2017-12-07 | 2017-12-07 | Electric operating mechanism and switch device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288948.1A CN107845513B (en) | 2017-12-07 | 2017-12-07 | Electric operating mechanism and switch device |
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| Publication Number | Publication Date |
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| CN107845513A CN107845513A (en) | 2018-03-27 |
| CN107845513B true CN107845513B (en) | 2020-01-31 |
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| CN201711288948.1A Active CN107845513B (en) | 2017-12-07 | 2017-12-07 | Electric operating mechanism and switch device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108844728A (en) * | 2018-06-15 | 2018-11-20 | 深圳市创顶峰科技有限公司 | A kind of instruction input mechanism for testing for smart lock test equipment |
| CN109599277B (en) * | 2018-11-16 | 2020-08-11 | 陕西千山航空电子有限责任公司 | Electromechanical conversion device |
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| EP2028670B1 (en) * | 2007-08-20 | 2015-07-08 | LS Industrial Systems Co., Ltd | Spring charging device of air circuit breaker |
| CN203288437U (en) * | 2013-05-31 | 2013-11-13 | 北京华电瑞通电力工程技术有限公司 | Same-rotary-direction electric mechanism |
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| CN107845513A (en) | 2018-03-27 |
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