CN112509888B - Passive tripping device for switch - Google Patents
Passive tripping device for switch Download PDFInfo
- Publication number
- CN112509888B CN112509888B CN202011436318.6A CN202011436318A CN112509888B CN 112509888 B CN112509888 B CN 112509888B CN 202011436318 A CN202011436318 A CN 202011436318A CN 112509888 B CN112509888 B CN 112509888B
- Authority
- CN
- China
- Prior art keywords
- pull rod
- movable pull
- switch
- rod
- support column
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The invention provides a passive tripping device for a switch, which belongs to the technical field of power equipment and particularly comprises a brake separating half shaft and a brake closing crank arm connected with the brake separating half shaft, wherein the brake separating half shaft is used for driving the brake closing crank arm to rotate anticlockwise, the passive tripping device further comprises a transmission part, a pressure rod, a support column and a movable pull rod, one end of the pressure rod is arranged on the support column, one end of the pressure rod, which is far away from the support column, is used for abutting against the movable pull rod, a first reset device is arranged between the support column and one end of the pressure rod, which is far away from the support column, the transmission part is arranged between the brake closing crank arm and the pressure rod, the movable pull rod is connected to the switch, the brake separating half shaft is connected with the movable pull rod, and the movable pull rod drives the brake separating half shaft to rotate when moving to one end close to the pressure rod. The passive tripping device for the switch has fewer parts, simple structure and convenient installation.
Description
Technical Field
The invention relates to an electric device, in particular to a passive tripping device for a switch.
Background
The trip device is an important component in the switch, and the structure and the performance of the trip device directly influence the structure and the performance of the switch. The existing tripping device has the problems of more parts, inconvenient installation and the like due to the limited structure, and needs to be improved urgently.
Disclosure of Invention
The invention aims to provide a passive tripping device for a switch, which has fewer parts, simple structure and convenient installation.
In order to solve the problems, the invention provides a passive tripping device for a switch, which comprises a breaking half shaft and a closing crank arm connected with the breaking half shaft, wherein the breaking half shaft is used for driving the closing crank arm to rotate anticlockwise, the passive tripping device also comprises a transmission part, a pressure rod, a support column and a movable pull rod,
one end of the pressure lever is arranged on the support column, one end of the pressure lever far away from the support column is used for abutting against the movable pull rod, a first reset device is arranged between the support column and one end of the pressure lever far away from the support column,
the transmission piece is arranged between the closing connecting lever and the pressure lever, the closing connecting lever is used for driving the pressure lever to move towards the direction far away from the movable pull rod or the direction close to the movable pull rod through the transmission piece,
the movable pull rod is connected to the switch, when the current of a main loop of the switch is overlarge, the movable pull rod moves towards one end close to the pressure rod,
the opening half shaft is connected with the movable pull rod, and the movable pull rod drives the opening half shaft to rotate when moving towards one end close to the press rod.
The self-holding coil is connected with a main loop of the switch, the self-holding coil is communicated with the main loop of the switch when the current of the main loop of the switch is overlarge, a magnetic field generated when the self-holding coil is electrified is equal to the magnetic field of the permanent magnet in size and opposite in direction, the movable pull rod is a magnetic body and is placed close to the self-holding coil and the permanent magnet, one end of the movable pull rod is close to the pressure rod, the other end of the movable pull rod is far away from the pressure rod, one end of the movable pull rod, close to the pressure rod, extends out of the self-holding coil, and a second reset device is arranged between one end of the movable pull rod, close to the pressure rod, and the outer wall of the self-holding coil.
Further, the movable pull rod is arranged in the center of the self-holding coil.
Furthermore, a mounting hole is formed in the support column, a linear bearing is arranged in the mounting hole, and the pressing rod is arranged in the linear bearing.
Furthermore, the first reset device and the second reset device are both compression springs.
Further, the driving medium is a transmission connecting piece, one end of the transmission connecting piece is connected to the closing connecting lever through a first pin shaft, the other end of the transmission connecting piece is provided with a connecting long hole, the connecting end of the pressing rod is connected to the one end of the supporting column and extends out of the supporting column, the portion, extending out of the supporting column, of the pressing rod is connected with a second pin shaft, the second pin shaft is arranged in the connecting long hole, and when the closing connecting lever rotates, the second pin shaft moves in the connecting long hole to enable the pressing rod to be far away from the direction of the movable pull rod or to be close to the direction of the movable pull rod to move.
Furthermore, a shifting piece is arranged on the opening half shaft, a second boss is arranged at one end part of the movable pull rod close to the pressure rod, the second boss radially protrudes out of the surface of the movable pull rod, and the second boss is suitable for being in contact with the shifting piece and the pressure rod.
Further, the second reset device is arranged between the second boss and the self-holding coil.
Furthermore, one end of the pressure lever, which is close to the movable pull rod, is provided with a first boss, the first boss protrudes out of the surface of the pressure lever in the radial direction, and the first resetting device is arranged between the first boss and the support column.
The passive tripping device for the switch comprises a switching-on connecting lever, a transmission part pressing lever, a supporting column and a movable pull rod, wherein the switching-on connecting lever is used for driving the pressing lever to move towards the direction far away from the movable pull rod or the direction close to the movable pull rod through the transmission part so as to switch on or switch off the switch.
Drawings
Fig. 1 is a schematic partial cross-sectional structure view of a passive trip device for a switch in an open state according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a passive trip device for a switch in an open state according to an embodiment of the present invention;
fig. 3 is a schematic view of a partial cross-sectional structure of a passive trip device for a switch in a closing state according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a switch-on state of a passive trip device for a switch according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The terms "upper", "lower", "front", "rear", "left" and "right" and the like appearing in the embodiments of the present invention indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
As shown in fig. 1 and fig. 2, a passive trip device for a switch according to an embodiment of the present invention includes a switching-off half shaft 01, a switching-on crank arm 02, a transmission member 03, a pressure lever 04, a support column 42, and a movable pull rod 05, wherein the switching-off half shaft 01 is connected to the switching-on crank arm 02 through a switching-off lever and a switching-off spring (not shown in the figure), when the switching-off half shaft 01 rotates counterclockwise, the switching-off lever disengages from the switching-off half shaft 01, the switching-off spring drives the switching-on crank arm 02 to rotate counterclockwise,
one end of the pressure lever 04 is arranged on the support column 42, one end of the pressure lever 04 far away from the support column 42 is used for abutting against the movable pull rod 05, a first resetting device is arranged between the support column 42 and one end of the pressure lever 04 far away from the support column 42,
the transmission piece 03 is arranged between the closing connecting lever 02 and the pressure lever 04, and the closing connecting lever 02 is used for driving the pressure lever 04 to move towards the direction far away from the movable pull rod 05 or the direction close to the movable pull rod 05 through the transmission piece 03; when the closing crank arm 02 rotates anticlockwise, the closing crank arm 02 drives the pressing rod 04 to move towards the direction close to the movable pull rod 05 through the transmission piece 03, so that the pressing rod 04 collides with the movable pull rod 05; when the closing crank arm 02 rotates clockwise, the closing crank arm 02 drives the pressure lever 04 to move in a direction away from the movable pull rod 05 through the transmission part 03, and the pressure lever 04 is lifted upwards by a certain height;
the movable pull rod 05 is connected to a switch body of the switch, when the current of a main loop of the switch is too large, if a short-circuit fault occurs to a line, the movable pull rod 05 moves towards one end close to the compression rod 04, and when the current of the main loop of the switch is a normal value, the movable pull rod 05 is in a normal position.
The opening half shaft 01 is connected with a movable pull rod 05, and the movable pull rod 05 drives the opening half shaft 01 to rotate anticlockwise when moving towards one end close to the press rod 04.
As shown in fig. 1 and fig. 2, when the passive trip device for a switch according to the embodiment of the present invention is in the opening state, the pressing rod 04 has a downward pressure on the movable pull rod 05 under the action of the first reset device, and the movable pull rod 05 is pressed under the pressing rod 04; when the switch is switched on, as shown in fig. 3 and 4, the switch operating mechanism enables the switch-on connecting lever 02 to rotate clockwise, the switch-on connecting lever 02 drives the pressing rod 04 to move upwards in a direction away from the movable pull rod 05 through the transmission part 03, and the pressing rod 04 is away from the movable pull rod 05. The passive tripping device for the switch comprises a switching-on connecting lever 02, a transmission piece 03, a pressure lever 04, a support column 42 and a movable pull rod 05, wherein the switching-on connecting lever 02 is used for driving the pressure lever 04 to move towards the direction far away from the movable pull rod 05 or the direction close to the movable pull rod 05 through the transmission piece 03, so that the switch is switched on or switched off.
Optionally, the passive trip device for a switch according to an embodiment of the present invention further includes a self-holding coil 51 and a permanent magnet, the self-holding coil 51 is connected to a main loop of the switch, the self-holding coil 51 is communicated with the main loop of the switch when a current of the main loop of the switch is too large, a current transformer is disposed on the main loop, the current transformer is connected to a protection control device of the switch, when the current of the main loop exceeds a current safety value set by the protection control device, the self-holding coil 51 is powered on under the control of the protection control device, a magnetic field generated when the self-holding coil 51 is powered on is equal in magnitude and opposite in direction to a magnetic field of the permanent magnet, the movable pull rod 05 is a magnetic body, the movable pull rod 05 is disposed close to the self-holding coil 51 and the permanent magnet, one end of the movable pull rod 05 is close to the plunger 04, the other end of the movable pull rod 05 is far away from the plunger 04, one end of the movable pull rod 05 close to the plunger 04 extends out of the self-holding coil 51, and a second reset device is disposed between one end of the movable pull rod 05 close to the plunger 04 and an outer wall of the self-holding coil 51. When the self-holding coil 51 is not electrified, the permanent magnet has magnetic attraction to the movable pull rod 05, so that the movable pull rod 05 is in a self-closing position; the magnetic field generated when the self-holding coil 51 is electrified is equal to the magnetic field of the permanent magnet in size and opposite in direction, so that the magnetic field generated by the permanent magnet is weakened or offset, after the magnetic field is weakened, the magnetic attraction of the permanent magnet to the movable pull rod 05 disappears, the movable pull rod 05 is sprung upwards by the second resetting device, the movable pull rod 05 moves upwards to drive the opening half shaft 01 to rotate anticlockwise, the opening half shaft 01 drives the pressing rod 04 to move downwards in the direction close to the movable pull rod 05 through the transmission part 03, and then the pressing rod 04 collides with the movable pull rod 05, as shown in fig. 1. The passive tripping device for the switch further comprises the self-holding coil 51 and the permanent magnet, the self-holding coil 51 is connected with the main loop of the switch, when the current of the main loop of the switch is overlarge, the self-holding coil 51 is communicated with the main loop of the switch, so that the magnetic field around the movable pull rod 05 is weakened or disappeared, the stress of the movable pull rod 05 is changed by changing the magnetic field, the opening and closing of the switch are not easily affected by vibration, the reliability of the device is improved, and the service life of the device is prolonged.
Optionally, a movable pull rod 05 is arranged in the center of the self-holding coil 51.
Optionally, a mounting hole is formed in the supporting column 42, a linear bearing 421 is disposed in the mounting hole, and the pressing rod 04 is disposed in the linear bearing 421. Due to the arrangement of the linear bearing 421, the friction force between the pressing rod 04 and the supporting column 42 is reduced.
Optionally, the first and second reset devices are respectively a compression spring 41 and a compression spring 52, and the first and second reset devices may also adopt other devices that facilitate resetting of the compression bar 04 and the movable pull rod 05.
Optionally, the transmission component 03 is an L-shaped transmission connecting piece, one end of the transmission connecting piece is connected to the closing connecting lever 02 through a first pin shaft 31, the other end of the transmission connecting piece is provided with a connecting long hole 32, one end of the pressing rod 04 connected to the supporting column 42 extends out of the supporting column 42, a part of the pressing rod 04 extending out of the supporting column 42 is connected to a second pin shaft 422, the second pin shaft 422 is arranged in the connecting long hole 32, and when the closing connecting lever 02 rotates, the second pin shaft 422 moves in the connecting long hole 32 to enable the pressing rod 04 to move in a direction away from the movable pull rod 05 or in a direction close to the movable pull rod 05.
Optionally, the opening half shaft 01 is provided with a shifting piece 11, one end of the movable pull rod 05 close to the press rod 04 is provided with a second boss 53, the second boss 53 radially protrudes out of the surface of the movable pull rod 05, and the second boss 53 is suitable for contacting with the shifting piece 11 and the press rod 04. Specifically, the shifting piece 11 is integrally formed with the opening half shaft 01, or the shifting piece 11 is connected to the opening half shaft 01 through a bolt.
Optionally, a second reset means is provided between the second boss 53 and the self-holding coil 51.
Optionally, one end of the pressing rod 04 close to the movable pull rod 05 is provided with a first boss 43, the first boss 43 radially protrudes out of the surface of the pressing rod 04, and the first resetting device is arranged between the first boss 43 and the supporting column 42. The arrangement of the first boss 43 is convenient for the compression bar 04 to contact with the movable pull rod 05.
The passive tripping device for the switch is a part of a spring operating mechanism of the switch, is connected to the switch through a bolt when in use, and has the following working process:
in the opening state, as shown in fig. 1 and 2, at this time, the pressure rod 04 has a downward pressure on the movable pull rod 05 under the action of the pressure spring 41, the pressure is greater than an upward acting force of the pressure spring 52 on the movable pull rod 05, and the movable pull rod 05 is attracted by the permanent magnet;
when the passive tripping device for the switch is switched on, as shown in fig. 3 and 4, the switch operating mechanism drives the switching-on connecting lever 02 to rotate clockwise, the switching-on connecting lever 02 pushes the transmission member 03 through the first pin 31, the transmission member 03 rotates counterclockwise around the first pin 31, the transmission member 03 drives the second pin 422 to move upward in the connection long hole 32 in the movement process, and the second pin 422 drives the pressing rod 04 to move upward and pull up to a certain height;
when the current of the main loop is overlarge, the self-holding coil 51 is electrified and generates a magnetic field opposite to the permanent magnet, so that the magnetic field generated by the permanent magnet is weakened or counteracted, the magnetic attraction of the movable pull rod 05 in a closed position disappears, the movable pull rod 05 is upwards bounced by the pressure spring 52, the movable pull rod 05 moves upwards to impact the shifting piece 11, the shifting piece 11 drives the opening half shaft 01 to rotate anticlockwise, and then the switch operating mechanism drives the switch to open. In the brake opening process, the closing crank arm 02 rotates anticlockwise to drive the transmission part 03 to rotate clockwise, the pressure rod 04 moves downwards at the moment because the pressure spring 41 has downward pressure on the pressure rod 04, then the pressure rod 04 collides with the movable pull rod 05, the downward pressure of the pressure spring 41 is larger than the upward force of the pressure spring 52, the movable pull rod 05 is pressed downwards to the suction position by the pressure rod 04, and when the passive tripping device for the switch returns to the state shown in fig. 1 and fig. 2.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the invention.
Claims (8)
1. A passive tripping device for a switch comprises a breaking half shaft (01) and a closing crank arm (02) connected with the breaking half shaft (01), wherein the breaking half shaft (01) is used for driving the closing crank arm (02) to rotate anticlockwise, and the passive tripping device is characterized by further comprising a transmission piece (03), a pressure lever (04), a support column (42), a movable pull rod (05), a self-holding coil (51) and a permanent magnet,
one end of the pressure lever (04) is arranged on the support column (42), one end of the pressure lever (04) far away from the support column (42) is used for being abutted against the movable pull rod (05), a first reset device is arranged between the support column (42) and one end of the pressure lever (04) far away from the support column (42),
the transmission piece (03) is arranged between the switching-on connecting lever (02) and the pressure lever (04), the switching-on connecting lever (02) is used for driving the pressure lever (04) to move towards the direction far away from the movable pull rod (05) or towards the movable pull rod (05) through the transmission piece (03),
the movable pull rod (05) is connected to the switch, when the current of a main loop of the switch is overlarge, the movable pull rod (05) moves towards one end close to the pressure rod (04),
the opening half shaft (01) is connected with the movable pull rod (05), the movable pull rod (05) drives the opening half shaft (01) to rotate when moving towards one end close to the pressure rod (04),
the self-holding coil (51) is connected with the main loop of the switch, when the current of the main loop of the switch is too large, the self-holding coil (51) is communicated with the main loop of the switch, a magnetic field generated when the self-holding coil (51) is electrified is equal to the magnetic field of the permanent magnet in size and opposite in direction, the movable pull rod (05) is a magnetic body, the movable pull rod (05) is close to the self-holding coil (51) and the permanent magnet is placed, one end of the movable pull rod (05) is close to the pressing rod (04), the other end of the movable pull rod (05) is far away from the pressing rod (04), one end of the movable pull rod (05) close to the pressing rod (04) stretches out the self-holding coil (51), and a second reset device is arranged between one end of the pressing rod (04) and the outer wall of the self-holding coil (51).
2. The passive trip unit for a switch of claim 1,
the movable pull rod (05) is arranged in the center of the self-holding coil (51).
3. The passive trip unit for a switch of claim 1,
the support column (42) is provided with a mounting hole, a linear bearing (421) is arranged in the mounting hole, and the pressing rod (04) is arranged in the linear bearing (421).
4. The passive trip unit for a switch of claim 1,
the first reset device and the second reset device are both compression springs (41, 52).
5. The passive trip unit for a switch of claim 1,
driving medium (03) is transmission even piece, transmission even piece one end through first round pin axle (31) connect in on closing a connecting lever (02), the transmission is even the piece other end and is provided with connection slot hole (32), connect in of depression bar (04) the one end of support column (42) is stretched out outside support column (42), stretching out of depression bar (04) the outer part of support column (42) is connected with second round pin axle (422), second round pin axle (422) set up in connect in slot hole (32), when closing a connecting lever (02) rotated, second round pin axle (422) are in it makes to move in connection slot hole (32) depression bar (04) is to keeping away from the direction of activity pull rod (05) or be close to the direction of activity pull rod (05) removes.
6. The passive trip unit for a switch of claim 1,
the opening half shaft (01) is provided with a shifting piece (11), one end part, close to the pressure rod (04), of the movable pull rod (05) is provided with a second boss (53), the second boss (53) protrudes out of the surface of the movable pull rod (05) in the radial direction, and the second boss (53) is suitable for being in contact with the shifting piece (11) and the pressure rod (04).
7. The passive trip unit for a switch of claim 6,
the second resetting device is arranged between the second boss (53) and the self-holding coil (51).
8. The passive trip unit for a switch of claim 1,
one end, close to the movable pull rod (05), of the pressing rod (04) is provided with a first boss (43), the first boss (43) protrudes out of the surface of the pressing rod (04) in the radial direction, and the first resetting device is arranged between the first boss (43) and the supporting column (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011436318.6A CN112509888B (en) | 2020-12-10 | 2020-12-10 | Passive tripping device for switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011436318.6A CN112509888B (en) | 2020-12-10 | 2020-12-10 | Passive tripping device for switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112509888A CN112509888A (en) | 2021-03-16 |
| CN112509888B true CN112509888B (en) | 2023-01-17 |
Family
ID=74970611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011436318.6A Active CN112509888B (en) | 2020-12-10 | 2020-12-10 | Passive tripping device for switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112509888B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07114871A (en) * | 1993-10-19 | 1995-05-02 | Fuji Electric Co Ltd | Remote control type circuit breaker |
| CN104465251B (en) * | 2014-12-11 | 2016-11-16 | 常熟开关制造有限公司(原常熟开关厂） | Electromagnetic tripping apparatus and the chopper equipped with this electromagnetic tripping apparatus |
| CN205959926U (en) * | 2016-08-23 | 2017-02-15 | 乐清市厚达电气有限公司 | Passive type shunt release |
| CN206619565U (en) * | 2017-03-16 | 2017-11-07 | 江苏华冠电器集团有限公司 | A kind of tripping mechanism that automatically resets suitable for switch cubicle |
| CN110957192B (en) * | 2019-11-29 | 2021-10-22 | 北京双杰电气股份有限公司 | Passive tripping device of medium-voltage switch |
-
2020
- 2020-12-10 CN CN202011436318.6A patent/CN112509888B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112509888A (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11916369B2 (en) | Dropout recloser | |
| CN112509888B (en) | Passive tripping device for switch | |
| CN107833807B (en) | Electromagnetic trip device | |
| CN203339083U (en) | Permanent magnet trip | |
| CN110957192B (en) | Passive tripping device of medium-voltage switch | |
| CN101373688B (en) | Electric magnet backup protection apparatus | |
| CN219936975U (en) | Small-sized breaker accessory | |
| CN219267582U (en) | Permanent magnet quick-release mechanism | |
| CN220065596U (en) | Switching device | |
| CN218996611U (en) | Linkage piece and leakage protector | |
| CN212113603U (en) | Tripping mechanism and miniature circuit breaker adopting same | |
| CN215377315U (en) | Circuit breaker mechanism | |
| CN217655836U (en) | Electromagnetic device for circuit breaker | |
| CN114783844B (en) | Manual operation mechanism of permanent magnet type molded case circuit breaker | |
| CN116544079A (en) | Low-voltage shunt release | |
| CN211419419U (en) | Pulley meets and hinders protection device | |
| CN111681926A (en) | Tripping mechanism and miniature circuit breaker adopting same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |