CN111971862B - Mobile device plug-in and pull-out device and electrical device - Google Patents
Mobile device plug-in and pull-out device and electrical device Download PDFInfo
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- CN111971862B CN111971862B CN201880091746.4A CN201880091746A CN111971862B CN 111971862 B CN111971862 B CN 111971862B CN 201880091746 A CN201880091746 A CN 201880091746A CN 111971862 B CN111971862 B CN 111971862B
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- mobile device
- worm
- unplugging
- inserting apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
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Abstract
The mobile device plug-in and-out device (50) comprises: a frame (6) on which a mobile device (7) is mounted; links (3 a and 5 a) having a frame (6) movably supported at one end and a worm wheel part (3 c) formed at the other end; a worm (2 b) that engages with the worm wheel section (3 c) of the links (3 a and 5 a) and rotates the worm wheel section (3 c); and a rotating means which is connected to the operating shaft (2 a) of the worm (2 b) and rotates the worm gear part (3 c).
Description
Technical Field
The present application relates to a mobile device plug-in and-out device and an electrical device.
Background
Conventionally, for example, a screw mechanism that rotates a screw shaft and moves a nut linearly along the screw shaft is used to perform an operation of inserting and removing a moving device (a disconnector, a switch, a circuit breaker, an instrument transformer, and the like) in a switchgear (for example, see patent documents 1 and 2).
For example, the conventional insertion and extraction mechanism disclosed in patent document 1 includes: a bracket for movably carrying the main body of the cutter combined with or separated from the mounting frame arranged at the rear of the bracket; an insertion and extraction handle for moving the carriage forward and backward; a stopper unit for limiting a transfer distance of the tray transferred by the inserting and extracting handle; and a beam assembly for supporting the insertion and extraction handle. In addition, the bracket is composed of the following parts: a box body with an open upper part and a wall body with a specified height formed on the outer peripheral surface; and two pairs of wheels arranged at two sides of the box body so as to be inserted or pulled out along guide rails erected at the inner sides of two side walls of the bracket.
Further, the insertion and extraction handle is constituted by: a screw rod inserted into a through hole formed in a front wall of the case in a front-rear direction; a transfer nut disposed on the inner side of the wall body in front of the box body in a state of being screwed with the screw rod; a U-shaped bracket fixed on the box body for preventing the separation of the transfer nut; and an operation handle detachably provided at the front end portion and capable of rotating the screw forward and backward.
In this way, in the conventional insertion and extraction mechanism, the screw shaft is rotated, and the movement, extraction and insertion operation of the device is performed by a mechanism that moves the nut in a straight line along the screw shaft. The reason why many of such mechanisms are used is to enable a relatively simple configuration of a deceleration function when a rotational operation force is converted into a rectilinear motion by using a lead screw and a nut, and to generate a rectilinear thrust.
In the process of the removal and insertion movement of the mobile device in the switchgear, the thrust force required to insert the contact plug of the circuit contact near the insertion final position is maximized in the moving step. The specifications of the screw and the transfer nut are determined according to the maximum thrust.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2011-10544
Patent document 2: japanese patent laid-open publication No. 2013-150375
Disclosure of Invention
Technical problem to be solved by the invention
However, during the pull-out and insertion movement of the mobile device, most of the thrust force required for the movement is the degree of rolling resistance caused by the self-weight of the mobile device, and may be a considerably small force compared to the above-described maximum thrust force. Therefore, the conventional insertion and extraction mechanism wastes the reduction ratio of the screw, and as a result, reduction of the number of operations and the operation time is an obstacle, and there is a problem in that labor saving is required in the insertion and extraction work.
Further, the depth dimension of the extraction and insertion mechanism is determined by the length of the screw which is required to be equal to or greater than the movement dimension of the mobile device, and the dimension in the height direction of the extraction and insertion mechanism is restricted by the outer dimension of the nut associated with the diameter of the screw, so that there is a limit to the downsizing of the device, and there is a problem that the downsizing and the weight saving cannot be achieved.
The present application discloses a technique for solving the above-described problems, and an object thereof is to provide a mobile device plug-in and-out device and an electric device that can reduce the plug-in and-out operation force, the number of operations, and the operation time and can be miniaturized.
Technical scheme for solving technical problem
The mobile device plug-in device disclosed by the application comprises: a frame on which the mobile device is mounted; a link having one end movably supporting the frame and the other end formed with a worm gear portion; a worm that engages with the worm wheel portion of the link to rotate the worm wheel portion; and a rotation unit coupled to the operation shaft of the worm to rotate the worm gear portion.
The electric device disclosed in the present application is characterized by using a mobile device plug-in and-out device.
Effects of the invention
According to the mobile device plug-in and-out device and the electric device disclosed in the present application, it is possible to obtain a mobile device plug-in and-out device and an electric device that can reduce the plug-in and-out operation force, the number of operations, and the operation time and can be miniaturized.
Drawings
Fig. 1 is a perspective view showing a mobile device extracting and inserting apparatus according to embodiment 1.
Fig. 2 is a perspective view showing the mobile device extracting and inserting apparatus according to embodiment 1.
Fig. 3 is a perspective view of the unshown case of the mobile device unplugging and inserting apparatus shown in fig. 1.
Fig. 4 is a side view of the mobile device unplugging and plugging means shown in fig. 3.
Fig. 5 is a front view of the mobile device unplugging and plugging means shown in fig. 3.
Fig. 6 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Fig. 7 is a perspective view of fig. 6.
Fig. 8 is a perspective view showing a state in which a mobile device is mounted on the mobile device unplugging and inserting apparatus according to embodiment 1 and is inserted into the switch device.
Fig. 9 is a side view of fig. 8.
Fig. 10 is a diagram comparing the reduction ratio (force ratio) when the insertion device and the conventional device are pulled out using the mobile device according to embodiment 1.
Fig. 11 is a perspective view showing the mobile device inserting and extracting apparatus according to embodiment 2.
Fig. 12 is a partially enlarged view of the mobile device extracting and inserting apparatus according to embodiment 3.
Fig. 13A is a partial plan view of the mobile device extracting and inserting apparatus according to embodiment 4.
Fig. 13B is a partial front view of the mobile device inserting and extracting apparatus according to embodiment 4.
Detailed Description
Hereinafter, embodiment 1 will be described with reference to the drawings.
In the drawings, the same reference numerals denote the same or equivalent structures.
Fig. 1 and 2 are perspective views showing a mobile device extracting and inserting apparatus according to embodiment 1. Fig. 1 shows a mobile device plug-in and-out apparatus in a state where a mobile device is plugged out from a mobile object such as a switch device, for example, and fig. 2 shows a mobile device plug-in and-out apparatus in a state where a mobile device is plugged in to a mobile object such as a switch device, for example.
Fig. 3 is a perspective view showing an internal structure of the mobile device shown in fig. 1 in a state where the case of the insertion apparatus is not shown. Fig. 4 is a side view of the mobile device extracting and inserting apparatus shown in fig. 3, and fig. 5 is a front view of the mobile device extracting and inserting apparatus shown in fig. 3.
In embodiment 1, a mobile device plug-in and-out apparatus for plugging in or unplugging from a switchgear an electric device as a mobile device housed in the switchgear for a power receiving and distributing device will be described with reference to fig. 1 to 3. Here, the electrical equipment refers to a breaker, a switch, a breaker, an instrument transformer, and the like.
In fig. 1 to 3, the mobile device extracting and inserting apparatus 50 includes: a housing 1; a worm 2b rotatably supported by the housing 1; worm links 3a and 3b each having a worm wheel portion 3c and 3d engaged with the worm 2b at each end; connecting rods 5a and 5b connected to the worm wheel links 3a and 3b, respectively; and a movable frame 6 coupled to the connecting rods 5a and 5 b.
The operation shaft 2a provided at one end of the worm 2b is engaged with an operation knob (not shown) attached to the switch device when the moving device 7 such as a disconnector is removed from or inserted into the switch device. The worm gear 2 is constituted by the worm 2b and worm wheels of the worm wheel portions 3c and 3d.
The worm links 3a and 3b are disposed rotatably about pins 4a and 4b serving as rotation support shafts. Worm gear portions 3c and 3d are formed at respective end portions of the worm links 3a and 3b, and engage with the screw portions of the worm 2 b. One end portions of the connecting rods 5a and 5b are pin-coupled to the worm links 3a and 3b so as to be rotatable, respectively. The other end portions of the connecting rods 5a and 5b are rotatably coupled to the movable frame 6 via connecting pins 5c and 5 d. The worm wheel links 3a, 3b, the connecting rods 5a, 5b and the movable frame 6 constitute pantograph links.
The movable frame 6 constitutes a movable end of the pantograph, and carries a moving device 7 such as a disconnector which is inserted into or pulled out from a switch device (not shown). The fixed-side lock member 8 provided in the housing 1 fixes the housing 1 to the switchgear, for example. The housing 1 accommodates and supports the worm 2b and the worm wheel portions 3c and 3d of the worm wheel links 3a and 3 b. The teeth of the worm wheel portions 3c and 3d have a three-dimensional curved structure.
Fig. 6 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1. Fig. 7 is a perspective view of fig. 6. Fig. 8 is a perspective view showing a state in which a disconnector is mounted on the removable insertion device of the portable device according to embodiment 1 and inserted into a switch device (not shown). Fig. 9 is a side view of fig. 8.
As shown in fig. 6, the movable frame 6 is configured such that the ends of the connecting rods 5a and 5b are sandwiched by two plates, and the ends of the movable frame 6 and the connecting rods 5a and 5b are rotatably connected by connecting pins 5c and 5 d. As shown in fig. 7, the movable frame 6 has a through hole 6a formed therein, and a bolt (not shown) is inserted through the through hole 6a from below the movable frame 6 to fix the moving device 7 such as a cutter.
In embodiment 1, as shown in fig. 8 and 9, an example in which a moving device 7 such as a cutter is fixed to 4 through holes 6a by 4 bolts is shown, but the number of through holes 6a is not limited to this and may be selected as appropriate.
In addition, as shown in fig. 7, the movable frame 6 is formed with a quadrangular additional hole 6b. The purpose of this is to reduce the weight of the movable frame 6. In embodiment 1, an example in which 4 extra holes 6b are formed is shown, but the number of extra holes 6b may be appropriately selected.
The operation will be described next. An operation knob (not shown) is inserted into the operation shaft 2a of the worm 2b to rotate the worm 2b, so that power is transmitted to the worm wheel portions 3c, 3d of the worm wheel links 3a, 3b disposed on both sides of the worm 2 b. Then, the worm wheel links 3a, 3b are rotated around the rotation support shafts, i.e., the pins 4a, 4b, in the direction in which they approach each other, so that the pantograph links extend in the depth direction of the switch device, and the thrust is transmitted from the connecting rods 5a, 5b to the movable frame 6 in the depth direction of the switch device. As a result, the moving device 7 such as a cutter attached to the movable frame 6 can be moved in the front-rear direction (straight direction) of the switchgear.
Further, by rotating the operating shaft 2a of the worm 2b in the direction opposite to the above-described direction and rotating the worm wheel links 3a and 3b in the direction away from each other, the pantograph link constituted by the worm wheel links 3a and 3b, the connecting rods 5a and 5b, and the movable frame 6 is contracted in the depth direction of the switch device, and the moving device 7 such as a cutter attached to the movable frame 6 can be pulled out to the original position (pulled-out position).
As described above, in the insertion and removal operation of the cutter which is the moving device 7, most of the force required in the moving step is caused by the rolling resistance (rolling resistance of the wheels supporting the moving device 7) due to the self weight of the moving device 7.
This rolling resistance is a considerably small force compared to the pushing force, i.e. the operating force, which is required when a mechanical or electrical connection is required in the final insertion position, i.e. in the final insertion region a. Here, the final insertion position refers to a position where the moving device 7 is connected to the main circuit within the switch device. The mechanical property is a mechanical force required for connecting the electrical connectors when the mobile device 7 is connected to the main circuit in the switchgear.
The mobile device extracting and inserting apparatus 50 according to embodiment 1 can use the variable multiplication function of the force generated by the torque mechanism in the pantograph link, and can be matched with the final insertion region a in which the pantograph link is fully extended by the reduction ratio to have the maximum function. Therefore, the operation force for pulling out the insertion device 50 by the mobile device can be used without waste, the number of operations can be reduced, and labor saving can be achieved in the operation work.
Fig. 10 is a diagram showing a change in the reduction ratio (force ratio) when the insertion device is extracted using the mobile device according to embodiment 1, as compared with the reduction ratio (force ratio) when the conventional device (screw mechanism) is used. That is, in fig. 10, the characteristics of the torque structure of the pantograph are graphed. That is, as a characteristic of the pantograph link, when the pantograph link is extended from the contracted state, the movement of the movable frame 6 with respect to the rotation amount of the worm links 3a and 3b is large, and the reduction gear ratio is small, so that the generated thrust is small. However, the amount of movement of the worm links 3a and 3b with respect to the amount of rotation becomes smaller toward the end position and the reduction ratio becomes larger, so that a large thrust can be configured with an efficient reduction ratio. Therefore, the mobile device extracting and inserting apparatus 50 according to embodiment 1 can be operated at a low rotation speed without waste.
Further, since the mobile device extracting and inserting apparatus 50 according to embodiment 1 can be formed of a thin plate which can be processed by a sheet metal or the like as a structural member of the pantograph linkage, the mobile device extracting and inserting apparatus 50 as a whole can be formed to be thin and the height thereof can be suppressed.
Further, in the conventional lead screw structure, the size of the device corresponding to the insertion/extraction direction is required to match the movement dimension of the insertion/extraction, but in the moving device insertion/extraction device 50 according to embodiment 1, the moving device 7 is moved in accordance with the contraction of the pantograph link, so that the size of the device corresponding to the movement dimension of the insertion/extraction is not required.
The mobile device extracting and inserting apparatus 50 according to embodiment 1 does not require any restriction in the height direction due to the external dimension of the nut along with the screw diameter required in the conventional screw structure. Therefore, the mobile device extracting and inserting apparatus 50 according to embodiment 1 can be reduced in size and weight as compared with the conventional apparatus.
Fig. 11 is a perspective view showing the mobile device inserting and extracting apparatus according to embodiment 2.
The mobile device extracting and inserting apparatus 50 according to embodiment 2 will be described below with reference to fig. 10.
As shown in fig. 11, the transfer device extracting and inserting apparatus 50 according to embodiment 2 is provided with a link including a connecting rod 5a and a worm wheel link 3a only on one side of the movable frame 6.
Also in embodiment 2, the mobile device extracting and inserting apparatus 50 includes, as in embodiment 1: a housing 1; a worm 2b rotatably supported by the housing 1; a worm wheel link 3a having a worm wheel portion 3c at an end thereof to be engaged with the worm 2b; a connecting rod 5a connected with the worm wheel connecting rod 3a; and a movable frame 6 coupled to the coupling rod 5 a. The operation shaft 2a provided at one end of the worm 2b is engaged with an operation knob (not shown) attached to the switch device when the moving device 7 such as a disconnector is removed from or inserted into the switch device.
The worm link 3a is disposed rotatably about a pin 4a serving as a rotation support shaft. The worm gear portion 3c is formed at an end of the worm gear link 3a and engages with the screw portion of the worm 2 b. One end of the connecting rod 5a is pin-coupled to the worm wheel link 3a so as to be rotatable. The other end of the link rod 5a is rotatably coupled to the movable frame 6 by a link pin 5 c.
The movable frame 6 is coupled to a moving device 7 such as a disconnector which is pulled out from or inserted into a switchgear (not shown). The housing 1 accommodates and supports the worm 2b and the worm wheel portion 3c of the worm wheel link 3 a.
In the mobile device extracting and inserting apparatus 50 according to embodiment 2, the linear motion guide 9 of the mobile device 7 is provided in contact with the movable frame 6. The linear guide 9 is fixed to, for example, a switchgear, and is used by sliding the movable frame 6. In the case where the linear motion guide 9 of the moving device 7 is provided, the pantograph linkage is not required, and the drawing and inserting movement function of the moving device 7 can be configured by a link structure including only the right worm wheel link 3a and the connecting rod 5a, for example. In embodiment 2, the same effects as those in embodiment 1 can be obtained, and the configuration can be made with a smaller number of components.
Embodiment 3.
Fig. 12 is a partially enlarged view of the mobile device extracting and inserting apparatus according to embodiment 3. Hereinafter, the mobile device extracting and inserting apparatus 50 according to embodiment 3 will be described with reference to fig. 12. The mobile device extracting and inserting apparatus 50 according to embodiment 3 is characterized in that the worm gear link 3a and the worm gear link 3b are arranged with a displacement of about 1/2 of the lead pitch P, and has the same structure as that of embodiment 1 except for this feature.
When the worm 2b is sandwiched and the worm links 3a and 3b are disposed on both sides thereof, the lead of the worm 2b is twisted, and thus the engaging portion of the screw thread is shifted by about half a turn. The worm wheel links 3a and 3b are arranged so as to be shifted by 1/2 of the rotation degree, that is, by 1/2 of the lead pitch P. That is, the rotation axis of the worm wheel link 3a provided on one side and the rotation axis of the worm wheel link 3b provided on the other side are arranged so as to be shifted by about 1/2 lead pitch P of the worm wheel 2b with the worm 2b interposed therebetween.
Further, by connecting the connecting rods 5a and 5b to the movable frame 6 with a displacement of the lead pitch P by about 1/2, the same members can be used on the left and right sides to reduce the types of components, and the left and right members can be shared to prevent assembly errors and the like, thereby providing the highly reliable mobile device extracting and inserting apparatus 50.
Embodiment 4.
Fig. 13A is a partial plan view of the mobile device extracting and inserting apparatus according to embodiment 4. Fig. 13B is a partial front view of the mobile device plugging and unplugging apparatus according to embodiment 4. In embodiments 1 to 3, the teeth of the worm wheel portions 3c and 3d of the worm wheel links 3a and 3b are worm wheels having a three-dimensional curved surface shape, but in embodiment 4, the teeth of the worm wheel portions 3c and 3d are not three-dimensional curved surface shapes but are formed of two-dimensional spur gears 10.
In the case where the worm gear portions 3c and 3d are formed to be thin, such as in the case where the worm gear portions 3c and 3d are formed by sheet metal working, since interference other than the normal transmission contact surface due to the twist of the lead angle of the worm 2b can be avoided even if a spur gear shape is used instead of the worm gear shape, the spur gear 10 which can be manufactured by an inexpensive processing method such as press working or laser working can be used instead, and the mobile device extracting and inserting apparatus 50 which is more inexpensive and suitable for mass production can be provided.
Embodiment 5.
In the mobile device extracting and inserting apparatus 50 according to embodiments 1 to 4, the surface hardness of the worm wheel portions 3c and 3d of the worm wheel links 3a and 3b is configured to be lower than the surface hardness of the screw portion of the worm 2 b.
When used with a large thrust force, the surface hardness of the worm gear portions 3c and 3d is set to be lower than the surface hardness of the worm 2b, whereby damage or breakage due to abrasion (seizure) or the like can be prevented, and a mechanism capable of generating a large thrust force by receiving a large operating force can be compactly configured.
In addition, when the transmission contact surfaces of the worm wheel portions 3c and 3d are used under a large surface pressure exceeding the elastic deformation range and being plastically deformed to a large extent, the worm wheel portions 3c and 3d are plastically deformed earlier than the contact surface of the worm 2b and are recessed in the shape of the contact portion with the worm 2b, whereby they are in line contact from the initial point contact state and expand into surface contact. Therefore, a mechanism which can receive a large operating force and generate a large propulsive force can be configured compactly without causing damage or breakage due to abrasion or the like.
Even in the moving device extracting and inserting apparatus 50 in embodiments 2 to 5, the same variation in the reduction ratio (force ratio) as that in embodiment 1 shown in fig. 10 is exhibited. Therefore, even in the mobile device extracting and inserting apparatus 50 according to embodiments 2 to 5, the operation can be performed at a small rotation speed without waste.
In addition, although the above embodiments 1 to 5 have described examples in which the present invention is applied to an electrical device which is housed in a switchgear so as to be able to be pulled out, the application target is not limited to the electrical device, and the mobile device pulling and inserting apparatus 50 disclosed in embodiments 1 to 5 of the present application can be applied to any configuration in which the apparatus is moved in the front-rear direction when viewed from the operation position.
Although various exemplary embodiments and examples have been described in the present application, the various features, modes, and functions described in 1 or more embodiments are not limited to the application to specific embodiments, and may be applied to the embodiments alone or in various combinations.
Therefore, it is considered that numerous modifications not illustrated are also included in the technical scope disclosed in the present specification. For example, the case where at least 1 component is modified, added, or omitted, and the case where at least 1 component is extracted and combined with the components of the other embodiments are also included.
Description of the reference symbols
1. Outer casing
2. Worm gear
2a operating shaft
2b worm
3a, 3b worm gear connecting rod
3c, 3d worm gear
4a, 4b pin
5a, 5b connecting rod
5c, 5d connecting pin
6. Movable frame
6a through hole
6b additional holes
7. Mobile device
8. Fixed side locking member
9. Linear motion guide rail
10. Spur gear
50. The mobile device pulls out the insertion device.
Claims (7)
1. A mobile device unplugging and plugging device comprising:
a frame on which a mobile device is mounted;
a link having one end portion movably supporting the frame and the other end portion rotating about a rotation support shaft;
a worm gear portion formed at the other end portion of the link and rotating about the rotation support shaft;
a worm engaged with the worm wheel portion of the link to rotate the worm wheel portion; and
a rotation unit coupled to an operation shaft of the worm to rotate the worm gear part,
the connecting rods are respectively arranged on two sides of the worm and form a pantograph connecting rod together with the frame.
2. The mobile device unplugging and inserting apparatus of claim 1 wherein,
the rotation axis of the connecting rod arranged on one side and the rotation axis of the connecting rod arranged on the other side are configured by being staggered with 1/2 lead pitch of the worm.
3. Mobile device unplugging and plugging apparatus according to claim 1 or 2,
the surface hardness of the worm gear portion is lower than the surface hardness of the worm.
4. The mobile device unplugging and inserting apparatus of claim 1 or 2,
the worm gear part is composed of a spur gear.
5. The mobile device unplugging and inserting apparatus of claim 1 or 2,
the mobile equipment is one of a disconnector, a switch, a circuit breaker and an instrument transformer.
6. The mobile device unplugging and inserting apparatus of claim 1 or 2,
the mobile device is a mobile device inserted into or pulled out of the switch device,
the frame moves in an insertion direction or a withdrawal direction of the mobile device.
7. An electrical apparatus, characterized in that it comprises,
use of a mobile device unplugging and plugging device according to any of claims 1 to 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/014049 WO2019193619A1 (en) | 2018-04-02 | 2018-04-02 | Installation and removal device for movable apparatus, and electrical apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111971862A CN111971862A (en) | 2020-11-20 |
| CN111971862B true CN111971862B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880091746.4A Active CN111971862B (en) | 2018-04-02 | 2018-04-02 | Mobile device plug-in and pull-out device and electrical device |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP6522253B1 (en) |
| KR (1) | KR102405040B1 (en) |
| CN (1) | CN111971862B (en) |
| DE (1) | DE112018007427T5 (en) |
| TW (1) | TWI676328B (en) |
| WO (1) | WO2019193619A1 (en) |
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| CN112271620B (en) * | 2020-11-03 | 2022-06-07 | 华能澜沧江水电股份有限公司 | 10kV high tension switchgear isolation barrier operation tool |
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2018
- 2018-04-02 JP JP2018544363A patent/JP6522253B1/en active Active
- 2018-04-02 KR KR1020207025047A patent/KR102405040B1/en active IP Right Grant
- 2018-04-02 DE DE112018007427.7T patent/DE112018007427T5/en active Pending
- 2018-04-02 WO PCT/JP2018/014049 patent/WO2019193619A1/en active Application Filing
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| US6166343A (en) * | 1999-03-29 | 2000-12-26 | Siemens Energy & Automation, Inc. | Unidirectional clutch assembly for a stored energy circuit breaker operator assembly |
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| CN101242124A (en) * | 2008-03-11 | 2008-08-13 | 镇江中船现代发电设备有限公司 | Tool for magnetic excitation machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2019193619A1 (en) | 2020-04-30 |
| TWI676328B (en) | 2019-11-01 |
| CN111971862A (en) | 2020-11-20 |
| WO2019193619A1 (en) | 2019-10-10 |
| TW201943165A (en) | 2019-11-01 |
| KR102405040B1 (en) | 2022-06-07 |
| DE112018007427T5 (en) | 2020-12-10 |
| KR20200111802A (en) | 2020-09-29 |
| JP6522253B1 (en) | 2019-05-29 |
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