CN114640928B - Loudspeaker of multi-center pillar magnetic circuit system - Google Patents
Loudspeaker of multi-center pillar magnetic circuit system Download PDFInfo
- Publication number
- CN114640928B CN114640928B CN202210241149.3A CN202210241149A CN114640928B CN 114640928 B CN114640928 B CN 114640928B CN 202210241149 A CN202210241149 A CN 202210241149A CN 114640928 B CN114640928 B CN 114640928B
- Authority
- CN
- China
- Prior art keywords
- magnetic circuit
- center pillar
- voice coil
- magnetic
- bottom bracket
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention relates to the technical field of loudspeakers, in particular to a loudspeaker of a multi-center column magnetic circuit system, which comprises a magnetic circuit center column, a magnetic circuit bottom bracket, a voice coil, a vibrating diaphragm and a basin frame, wherein the magnetic circuit center column comprises a magnetic circuit center column upper section and a magnetic circuit center column lower section which are made of magnetic conductive materials, the number of the magnetic circuit center column upper section is more than or equal to two, the magnetic circuit center column lower section is arranged in the magnetic circuit bottom bracket, the magnetic circuit bottom bracket is made of non-magnetic conductive materials, a bottom bracket center column hole for accommodating and fixing the magnetic circuit center column lower section is arranged in the middle of the magnetic circuit bottom bracket, the number and the size of the bottom bracket center column hole are matched with the magnetic circuit center column lower section, the magnetic circuit center column upper section and the magnetic circuit center column lower section are stably kept in the space position in the magnetic circuit system after being assembled into the bottom bracket center column hole, and a magnetic circuit center column lower section is arranged above the outer edge of the magnetic circuit bottom bracket. The invention has the support, the plurality of voice coils and the plurality of middle posts, can drive the voice coils in a balanced and stable way, and improves the tone quality; meanwhile, the production can be performed efficiently, and each middle column can be formed at one time.
Description
Technical Field
The invention relates to the technical field of speakers, in particular to a speaker of a multi-center pillar magnetic circuit system.
Background
The electroacoustic conversion core of the moving coil loudspeaker drives the voice coil to be a driving source of the loudspeaker, and the source for converting the electric signal into the acoustic signal has fine deviation, so that the fine distortion can lead to the distortion signal of which the amplified signal is multiplied.
Disclosure of Invention
The invention aims to solve the defects in the background technology, and provides a loudspeaker of a multi-center pillar magnetic circuit system, which is provided with a bracket, a plurality of voice coils and a plurality of center pillars, and can drive the voice coils in a balanced and stable manner, thereby improving the tone quality and reducing the distortion; meanwhile, the production can be performed efficiently, and each middle column can be formed at one time.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a speaker of multi-center pillar magnetic circuit system, includes magnetic circuit center pillar, magnetic circuit collet, voice coil loudspeaker diaphragm and basin frame, magnetic circuit center pillar including the magnetic circuit center pillar upper segment and the magnetic circuit center pillar hypomere that are magnetic conduction material, magnetic circuit center pillar upper segment cylinder quantity is greater than or equal to two, magnetic circuit center pillar hypomere install in the magnetic circuit collet, the magnetic circuit collet be non-magnetic conduction material, magnetic circuit collet middle part is equipped with the collet center pillar hole that is used for holding fixed magnetic circuit center pillar hypomere, the quantity and the size of collet center pillar hole and magnetic circuit center pillar hypomere phase-match, magnetic circuit center pillar hypomere assembly is in the spatial position in magnetic circuit center pillar upper segment and magnetic circuit center pillar hypomere after the collet center pillar hole, the magnetic circuit collet outer edge top is equipped with down and leads the magnetic ring, be equipped with the permanent magnet above the magnetic ring down, it leads the magnetic ring down to form down the magnetic gap with the magnetic circuit center pillar, it is used for holding down the magnetic path between magnetic ring and the magnetic circuit center pillar, it is in the magnetic coil loudspeaker diaphragm group to lead the magnetic coil loudspeaker diaphragm to be in the voice coil loudspeaker diaphragm, the voice coil loudspeaker diaphragm is in the voice coil loudspeaker diaphragm group down.
Preferably:
the magnetic circuit center pillar is a plurality of independent pillars, and the pillars are respectively arranged in the bottom bracket center pillar holes. The bracket voice coil needs to be grooved and magnetic circuit center pillar, and traditional speaker production is punching center pillar as an organic whole, and the bracket groove needs extra process processing, and production efficiency is greatly lower than traditional speaker. The structure avoids the grooving process of the middle column of the magnetic circuit, can produce the middle column once, and greatly improves the production efficiency.
The magnetic circuit center pillar is of an integrated structure, and the upper section of the magnetic circuit center pillar is a plurality of independent pillars. The installation precision is controlled, and equidistant magnetic gaps are obtained.
A voice coil bracket is arranged in the voice coil, and the voice coil bracket can move up and down in a bracket gap between upper sections of the middle columns of each magnetic circuit. The voice coil support structure greatly improves the strength of the voice coil serving as a loudspeaker core, and reduces deformation of the voice coil in continuous vibration. When the strength of the voice coil is insufficient, high-frequency small signals are lost in weak deformation of the voice coil and cannot be transmitted to the vibrating diaphragm; the voice coil of the bracket can maintain the strength of the voice coil from a high frequency band to a low frequency band, and improves the integrity of the signal transmitted to the vibrating diaphragm.
The voice coil support in the voice coil is single-support type, and the number of the upper section columns of the middle column of the magnetic circuit is two. The single support can improve the strength of the voice coil part, reduce the complexity of the system, control the weight increase of the voice coil, and divide the upper section column body of the magnetic circuit into two.
The voice coil bracket in the voice coil is multi-supporting, and the number of the upper section cylinders of the middle column of the magnetic circuit corresponds to the number of the bracket gaps for accommodating the voice coil bracket. The multiple support voice coil former system provides a high strength voice coil intact, is perforated by the former plates, and uses lighter weight former materials to adjust the weight of the voice coil.
The lower section of the middle column of the magnetic circuit penetrates through and exceeds the magnetic circuit bottom support. The magnetic circuit center pillar beyond the magnetic circuit collet can play a role in heat dissipation, so that heat transfer generated when the voice coil works is quickened, and the power of the loudspeaker is improved.
The permanent magnets are arranged in a plurality of staggered mode. The multiple magnets can improve the magnetic flux density in the magnetic gap, improve the sensitivity of the loudspeaker, and can obtain enough sound pressure even when low power is input.
The voice coil is provided with three or more voice coil winding groups. When further improvements in speaker efficiency and performance are desired, more winding groups provide more and more balanced driving force.
Compared with the prior art, the invention has the beneficial effects that: the voice coil support structure of the multi-center column greatly improves the strength of the voice coil serving as a core of the loudspeaker, and reduces deformation of the voice coil in continuous vibration. The high-frequency small signal loss is reduced, the voice coil of the bracket can maintain the strength of the voice coil from a high frequency band to a low frequency band, the integrity of the signal transmitted to the vibrating diaphragm is improved, the tone quality is improved, and the distortion is reduced; meanwhile, each center pillar can be formed at one time, so that the secondary grooving process of the center pillar can be avoided, the production efficiency is improved, the voice coil loudspeaker with the bracket is practical, and the voice coil loudspeaker is suitable for mass production and popularization.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a side cross-sectional view of a magnetic circuit shoe according to an embodiment of the present invention;
FIG. 3 is a top view of a magnetic circuit shoe according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a monolithic magnetic circuit center pillar according to the present invention;
FIG. 5 is a schematic view of a voice coil single support structure according to the present invention;
FIG. 6 is a schematic view of a voice coil multi-support structure according to the present invention;
FIG. 7 is a schematic view of another multi-support voice coil structure according to the present invention;
FIG. 8 is a schematic view of the structure of the magnetic circuit center pillar of the present invention beyond the magnetic circuit bottom bracket;
FIG. 9 is a schematic diagram of the structure of a multiple permanent magnet of the present invention;
fig. 10 is a schematic structural view of a multi-voice coil according to the present invention.
In the figure: 1. a lower magnetic conduction ring; 2. a permanent magnet; 3. a magnetic conduction ring is arranged on the upper part; 4. a lower magnetic gap; 5. an upper magnetic gap; 6. the upper section of the magnetic circuit middle column; 7. a magnetic circuit bottom support; 8. a middle column hole of the bottom bracket; 9. winding groups on the voice coil; 10. a voice coil lower winding group; 11. a vibrating diaphragm; 12. a basin stand; 13. a bracket gap; 14. the lower section of the middle column of the magnetic circuit; 15. a voice coil bracket; 16. and a magnetic conduction ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-3, the speaker of the multi-column magnetic circuit system provided by the invention comprises a magnetic circuit center column, a magnetic circuit bottom support 7, a voice coil, a vibrating diaphragm 11 and a basin frame 12, wherein the magnetic circuit center column comprises a magnetic circuit center column upper section 6 and a magnetic circuit center column lower section 14 which are made of magnetic conductive materials, the magnetic circuit center column is four independent columns, namely, the number of the magnetic circuit center column upper section 6 columns is four, the magnetic circuit center column lower section 14 columns are also four and are arranged in the magnetic circuit bottom support 7, the magnetic circuit bottom support 7 is made of non-magnetic conductive materials, a bottom support center column hole 8 for accommodating and fixing the magnetic circuit center column lower section 14 is arranged in the middle of the magnetic circuit bottom support 7, the number of the bottom support center column holes 8 is matched with the size and the magnetic circuit center column lower section 14, the lower section 14 of the magnetic circuit center pillar is assembled into the center pillar hole 8 of the bottom bracket, then the upper section 6 of the magnetic circuit center pillar and the lower section 14 of the magnetic circuit center pillar are stably kept at the space position in the magnetic circuit system, a lower magnetic conduction ring 1 is arranged above the outer edge of the bottom bracket 7 of the magnetic circuit, a permanent magnet 2 is arranged above the lower magnetic conduction ring 1, an upper magnetic conduction ring 3 is arranged above the permanent magnet 2, a lower magnetic gap 4 is formed between the lower magnetic conduction ring 1 and the magnetic circuit center pillar, an upper magnetic gap 5 is formed between the upper magnetic conduction ring 3 and the magnetic circuit center pillar, the voice coil comprises an upper voice coil winding group 9 and a lower voice coil winding group 10 which are connected on a voice coil framework in a winding manner, the upper voice coil winding group 9 is positioned in the upper magnetic gap 5, the lower voice coil winding group 10 is positioned in the lower magnetic gap 4, the upper end of the voice coil is connected with a loudspeaker diaphragm 11, and the loudspeaker diaphragm 11 is arranged on a basin frame 12 positioned above the upper magnetic conduction ring 3.
A voice coil bracket 15 is arranged in the voice coil, and the voice coil bracket 15 can move up and down in a bracket gap 13 between the upper sections 6 of the middle columns of each magnetic circuit.
Other embodiments are the case:
the magnetic circuit center pillar of this technical scheme can also be integrated into one piece structure, the magnetic circuit center pillar upper segment is a plurality of independent cylinders, as shown in fig. 4.
The voice coil bracket 15 in the voice coil of the present embodiment may be single-support, and the number of the upper column 6 in the magnetic circuit is two, as shown in fig. 5.
The voice coil bracket 15 in the voice coil of the present embodiment may be multi-supporting, and the number of the upper pole sections 6 in the magnetic circuit corresponds to the number of the bracket gaps 13 for accommodating the voice coil bracket 15, as shown in fig. 6 and 7.
The lower pole section 14 of the magnetic circuit in this embodiment may extend through and beyond the magnetic circuit shoe 7, as shown in fig. 8.
The permanent magnets 2 of the technical scheme can be arranged in a plurality of staggered manner, as shown in fig. 9.
The number of the voice coil winding groups of the voice coil in the technical scheme can be three or more, as shown in fig. 10.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a loudspeaker of multi-center pillar magnetic circuit system, includes magnetic circuit center pillar, magnetic circuit collet (7), voice coil loudspeaker voice coil, vibrating diaphragm (11) and basin frame (12), its characterized in that: the magnetic circuit center pillar comprises a magnetic circuit center pillar upper section (6) and a magnetic circuit center pillar lower section (14) which are made of magnetic conductive materials, the number of the magnetic circuit center pillar upper section (6) is more than or equal to two, the magnetic circuit center pillar lower section (14) is arranged in a magnetic circuit bottom bracket (7), the magnetic circuit bottom bracket (7) is made of non-magnetic conductive materials, a bottom bracket center pillar hole (8) for accommodating and fixing the magnetic circuit center pillar lower section (14) is arranged in the middle of the magnetic circuit bottom bracket (7), the number of the bottom bracket center pillar holes (8) is matched with the size of the magnetic circuit center pillar lower section (14), the magnetic circuit center pillar lower section (14) is assembled into the bottom bracket center pillar hole (8) to stably keep the space positions of the magnetic circuit center pillar upper section (6) and the magnetic circuit center pillar lower section (14) in the magnetic circuit system, the upper magnetic ring (1) is arranged above the outer edge of the magnetic circuit base (7), the permanent magnet (2) is arranged above the lower magnetic ring (1), the upper magnetic ring (3) is arranged above the permanent magnet (2), a lower magnetic gap (4) is formed between the lower magnetic ring (1) and the magnetic circuit center pillar, an upper magnetic gap (5) is formed between the upper magnetic ring (3) and the magnetic circuit center pillar, the voice coil comprises a voice coil upper winding group (9) and a voice coil lower winding group (10) which are connected on a voice coil framework in a winding manner, the voice coil upper winding group (9) is positioned in the upper magnetic gap (5), the voice coil lower winding group (10) is positioned in the lower magnetic gap (4), the upper end of the voice coil is connected with the loudspeaker vibrating diaphragm (11), and the loudspeaker vibrating diaphragm (11) is arranged on the basin frame (12) positioned above the upper magnetic conduction ring (3).
2. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the magnetic circuit center pillar is a plurality of independent pillars, and the pillars are respectively arranged in the bottom bracket center pillar holes.
3. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the magnetic circuit center pillar is of an integrated structure, and the upper section (6) of the magnetic circuit center pillar is a plurality of independent pillars.
4. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: a voice coil bracket (15) is arranged in the voice coil, and the voice coil bracket (15) can move up and down in a bracket gap (13) between upper sections (6) of the middle columns of each magnetic circuit.
5. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the voice coil support (15) in the voice coil is of a single support type, and two columns are arranged on the upper section (6) of the magnetic circuit center column.
6. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the voice coil supports (15) in the voice coil are multi-support type, and the number of the upper sections (6) of the magnetic circuit columns corresponds to the number of support gaps (13) for accommodating the voice coil supports (15).
7. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the lower section (14) of the middle column of the magnetic circuit penetrates through and exceeds the magnetic circuit base (7).
8. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the permanent magnets (2) are arranged in a plurality of staggered mode.
9. The speaker of a multi-center pillar magnetic circuit system according to claim 1, wherein: the voice coil is provided with three or more voice coil winding groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241149.3A CN114640928B (en) | 2022-03-11 | 2022-03-11 | Loudspeaker of multi-center pillar magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241149.3A CN114640928B (en) | 2022-03-11 | 2022-03-11 | Loudspeaker of multi-center pillar magnetic circuit system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114640928A CN114640928A (en) | 2022-06-17 |
| CN114640928B true CN114640928B (en) | 2023-06-27 |
Family
ID=81947356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210241149.3A Active CN114640928B (en) | 2022-03-11 | 2022-03-11 | Loudspeaker of multi-center pillar magnetic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114640928B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201490864U (en) * | 2009-07-13 | 2010-05-26 | 英赛特公司 | Moving-magnetic type continuous frequency conversion electromagnetic vibration generator |
| CN106341761A (en) * | 2016-12-05 | 2017-01-18 | 陈新得 | Loudspeaker with multipath magnetic circuit structure |
| CN106686502A (en) * | 2015-11-10 | 2017-05-17 | 王卫平 | A multi-channel magnetic circuit system of an internal magnetic moving coil speaker |
| CN108574918A (en) * | 2018-07-19 | 2018-09-25 | 陈新得 | One kind two divides twin magnetic circuit speaker |
| CN113225651A (en) * | 2021-05-26 | 2021-08-06 | 海宁市西米尼科技有限公司 | Loudspeaker with winding slot voice coil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017033459A1 (en) * | 2015-08-24 | 2017-03-02 | パナソニックＩｐマネジメント株式会社 | Magnetic circuit for speaker, and speaker using same |
-
2022
- 2022-03-11 CN CN202210241149.3A patent/CN114640928B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201490864U (en) * | 2009-07-13 | 2010-05-26 | 英赛特公司 | Moving-magnetic type continuous frequency conversion electromagnetic vibration generator |
| CN106686502A (en) * | 2015-11-10 | 2017-05-17 | 王卫平 | A multi-channel magnetic circuit system of an internal magnetic moving coil speaker |
| CN106341761A (en) * | 2016-12-05 | 2017-01-18 | 陈新得 | Loudspeaker with multipath magnetic circuit structure |
| CN108574918A (en) * | 2018-07-19 | 2018-09-25 | 陈新得 | One kind two divides twin magnetic circuit speaker |
| CN113225651A (en) * | 2021-05-26 | 2021-08-06 | 海宁市西米尼科技有限公司 | Loudspeaker with winding slot voice coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114640928A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207835793U (en) | A kind of Double-vibrating-diaspeaker speaker | |
| CN1121809C (en) | Loudspeaker | |
| US20040008859A1 (en) | Loudspeaker having double symmetric magnet-circuits, double voice coils and double dampers | |
| CA2885103A1 (en) | Multi-driver transducer having symmetrical magnetic circuits and symmetrical coil circuits | |
| US11997467B2 (en) | Multi-input-driving small loudspeaker and mid-treble loudspeaker | |
| CN209572154U (en) | Small-sized plane vibrating membrane loudspeaker and earphone | |
| CN202587358U (en) | Thin type speaker with inverted positioning support chip | |
| CN102638751A (en) | Thin type speaker with inverted positioning support chip | |
| CN103096224A (en) | Moving Magnet Speaker | |
| CN114640928B (en) | Loudspeaker of multi-center pillar magnetic circuit system | |
| CN204859551U (en) | Low well tweeter of novel high -fidelity that transient response is sensitive | |
| CN202406286U (en) | Dual drive double balance radiation type loudspeaker | |
| CN207460437U (en) | A kind of panel earphone pronunciation device and earphone | |
| JPH11187484A (en) | Loudspeaker | |
| CN216565582U (en) | Planar coil annular Halbach magnetic array loudspeaker | |
| CN110430510A (en) | A kind of double-side radiation sound driver | |
| CN101931849A (en) | Thin speaker with taper location support chip | |
| CN116055967A (en) | Super-linear multi-magnet double-vibrating-diaphragm loudspeaker | |
| CN214544638U (en) | Loudspeaker with heat dissipation function | |
| CN2324741Y (en) | Double-voice coil electric loudspeaker | |
| CN113079447A (en) | Annular Halbach magnetic array loudspeaker | |
| CN202551339U (en) | Speaker device | |
| CN201839431U (en) | Thin type speaker with tapered positioning support chip | |
| CN101931847B (en) | Thin type speaker based on multi-step magnetic yoke | |
| CN206908829U (en) | A kind of ultrathin belt high definition tonequality loudspeaker |
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 |