CN209017300U - A kind of loudspeaker sharing a magnetic returns structure with double diaphragm - Google Patents
A kind of loudspeaker sharing a magnetic returns structure with double diaphragm Download PDFInfo
- Publication number
- CN209017300U CN209017300U CN201821829421.5U CN201821829421U CN209017300U CN 209017300 U CN209017300 U CN 209017300U CN 201821829421 U CN201821829421 U CN 201821829421U CN 209017300 U CN209017300 U CN 209017300U
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- loudspeaker
- fixedly connected
- magnetic yoke
- sound equipment
- mounting bracket
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Abstract
The utility model discloses a kind of loudspeaker that a magnetic returns structure is shared with double diaphragm, it is related to loudspeaker technical field, this shares the loudspeaker of a magnetic returns structure with double diaphragm, including casing of sound equipment, the top open part of the casing of sound equipment is equipped with sealing surrounding edge, chamber is formed between sealing surrounding edge and the inner wall of casing of sound equipment, the inside of the chamber is equipped with abatvoix, the hydraulic cylinder being arranged symmetrically is equipped between the abatvoix and the inner bottom wall of casing of sound equipment.This shares the loudspeaker of a magnetic returns structure with double diaphragm, it can be convenient for the volume size of adjusting chamber, use demand is met significantly, volume can be set, and then promotes the depth of bass or the range performance of range, form double horn framework, and a shared magnetic returns structure is realized, have effects that build truer range performance, enhances the practicability of loudspeaker, convenient for the installation and removal of loudspeaker, the flexibility and reliability of loudspeaker are improved.
Description
Technical field
The utility model relates to loudspeaker technical field, specially a kind of loudspeaker that a magnetic returns structure is shared with double diaphragm.
Background technique
Loudspeaker are a kind of conversion equipment that a kind of electric energy is converted into sound in fact, when different electron energies reaches coil
When, coil generates a kind of energy and interacts with the magnetic field of magnet, and this interaction causes paper disc to vibrate, because electron energy is with time-varying
Change, the coil of loudspeaker can move forward or backward, therefore the paper disc of loudspeaker will be moved and then, this this movement makes the density of air
Degree generates variation and generates sound, is limited to limitation physically, a loudspeaker will issue high, medium and low range, and each range table
It now all combines, is actually difficult to reach.It would not be one good low because of a good high-pitched speaker
Sound loudspeaker, vice versa, in fact, high-pitched speaker or woofer would generally be designed as, through not by loudspeaker according to its characteristic
The loudspeaker of unisonance Domain Properties combine, and form the horn system that can take into account each range performance, and existing loudspeaker do not have double loudspeakers
Structure, it is poor that range shows effect, it has not been convenient to adjust the volume of chamber, it has not been convenient to mount and dismount, dependable with function
It is lower.
Currently, existing loudspeaker, inconvenient for use, it is unfavorable for promoting the use of.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of loudspeaker that a magnetic returns structure is shared with double diaphragm
, it solves existing loudspeaker without two speaker set-up, it is poor that range shows effect, it has not been convenient to adjust the volume of chamber, no
It is easy for installation and removal, the lower problem of dependable with function.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of loudspeaker sharing a magnetic returns structure with double diaphragm, including casing of sound equipment are opened at the top of the casing of sound equipment
Sealing surrounding edge is installed at mouthful, forms chamber, the inside peace of the chamber between sealing surrounding edge and the inner wall of casing of sound equipment
Equipped with abatvoix, the hydraulic cylinder being arranged symmetrically is installed between the abatvoix and the inner bottom wall of casing of sound equipment；
Two middle side part of top surface of the sealing surrounding edge is mounted on adjustable plate, is fixedly connected on the inside of the sealing surrounding edge
Mounting bracket, the top surface two sides of the mounting bracket offer stomata, and magnetic is fixedly installed on the inside of the mounting bracket and is returned
Structure；
The magnetic returns structure is made of upper conductive magnetic yoke, lower conductive magnetic yoke and magnet unit, the two sides up and down of the magnet unit
Be respectively fixedly connected with conductive magnetic yoke and lower conductive magnetic yoke, the two sides of the upper conductive magnetic yoke and lower conductive magnetic yoke with the inner wall of mounting bracket
It is fixedly connected, the first vibrating diaphragm is installed at the top of the upper conductive magnetic yoke, the bottom of the mounting bracket is equipped with the second vibrating diaphragm；
The inside two sides of the sealing surrounding edge offer work nest, living between the inner roof wall and inner bottom wall of the work nest
Dynamic to be equipped with bull stick, the bottom outer surface of the bull stick is fixedly installed with driving gear, and the inner bottom wall left side of the work nest is solid
Surely it is connected with limit plate, guide rod is fixedly connected between the limit plate and the inner sidewall of work nest, is set above the guide rod
It is equipped with screw rod；
The left end of the screw rod is through limit plate and is fixedly installed with linked gear, and set is equipped on the outside of the screw rod
Cylinder, the bottom of the sleeve are fixedly connected with the supplemental cartridge being arranged symmetrically, and the inner roof wall of the work nest is fixedly installed with positioning
Plate is provided with loading plate on the right side of the positioning plate；
Reinforcing rod is installed between the loading plate and sleeve, is fixedly connected between the loading plate and positioning plate
Buffer spring, the side of the separate reinforcing rod of the loading plate are fixedly connected with the kelly being arranged symmetrically, the mounting bracket
Outer surface offers card slot.
Optionally, the outside of the sealing surrounding edge is fixedly connected with casing of sound equipment；
The both ends of the hydraulic cylinder are respectively fixedly connected with the inner bottom wall and abatvoix of casing of sound equipment.
Optionally, the outer surface of the adjustable plate and sealing surrounding edge is fitted and connected；
The stomata runs through the inside of mounting bracket；
The upper conductive magnetic yoke and lower conductive magnetic yoke are located at the two sides up and down of magnet unit.
Optionally, first vibrating diaphragm is fixedly connected with upper conductive magnetic yoke；
Second vibrating diaphragm is fixedly connected with mounting bracket.
Optionally, the top of the bull stick is run through the inner wall of work nest and is fixedly connected with adjustable plate；
The linked gear and driving gear are angular wheel, the linked gear and driving gear engagement connection.
Optionally, one end of the screw rod is flexibly connected with limit plate, the other end of the screw rod and the inside of work nest
Wall is flexibly connected；
The bush whorl is socketed in the outer surface of screw rod；
The supplemental cartridge is slidably socketed in the outer surface of guide rod.
Optionally, the both ends of the reinforcing rod are respectively fixedly connected with loading plate and sleeve；
The kelly and card slot are equipped with, the kelly and card slot clamping.
(3) beneficial effect
The utility model provides a kind of loudspeaker that a magnetic returns structure is shared with double diaphragm, have it is following the utility model has the advantages that
(1), the loudspeaker that there is double diaphragm to share a magnetic returns structure can be convenient on the one hand by setting hydraulic cylinder
Adjust chamber volume size, meet use demand significantly, volume can be set, so promoted bass depth or
The range of range shows, and on the other hand by the first vibrating diaphragm of setting and the second vibrating diaphragm, forms double horn framework, and realize shared
One magnetic returns structure has effects that build truer range performance, enhances the practicability of loudspeaker.
(2), the loudspeaker that there is double diaphragm to share a magnetic returns structure are convenient for loudspeaker by setting adjustable plate, kelly and card slot
Installation and removal improve the flexibility and reliability of loudspeaker, are conducive to the care and maintenance in later period, easy to operate fast
Victory, user drives driving gear to rotate forward or backwards by rotating adjustable plate forward or backwards, by bull stick, due to gear
Transmission effect, by linked gear drive screw rod rotate forward or backwards so that sleeve is moved to the left or right, simultaneously
Guide rod plays the role of guiding, and supplemental cartridge is slided on guide rod, drives loading plate to be moved to the left or right by reinforcing rod, therefore
Achieve the purpose that control kelly and exact separation or clamping.
Detailed description of the invention
Fig. 1 is the loudspeaker appearance diagram of the utility model；
Fig. 2 is the loudspeaker schematic cross-sectional view of the utility model；
Fig. 3 is structure enlargement diagram at A in Fig. 2 of the utility model；
Fig. 4 is the loudspeaker schematic top plan view of the utility model.
In figure: casing of sound equipment 1, sealing surrounding edge 2, chamber 3, abatvoix 4, hydraulic cylinder 5, adjustable plate 6, mounting bracket 7, gas
Hole 8, lower conductive magnetic yoke 10, magnet unit 11, the first vibrating diaphragm 12, the second vibrating diaphragm 13, work nest 14, bull stick 15, is driven at upper conductive magnetic yoke 9
Moving gear 16, limit plate 17, screw rod 18, guide rod 19, linked gear 20, sleeve 21, supplemental cartridge 22, positioning plate 23, loading plate 24,
Reinforcing rod 25, buffer spring 26, kelly 27, card slot 28.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " setting ", " connected ", " connects " installation "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be machine
Tool connection；It can be directly connected, it can also be indirectly connected through an intermediary.For those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:
A kind of loudspeaker sharing a magnetic returns structure with double diaphragm, including casing of sound equipment 1, the top opening of casing of sound equipment 1
Place is equipped with sealing surrounding edge 2, seals and forms chamber 3 between surrounding edge 2 and the inner wall of casing of sound equipment 1, the inside of chamber 3 is equipped with suction
Soundboard 4 is equipped with the hydraulic cylinder 5 being arranged symmetrically between abatvoix 4 and the inner bottom wall of casing of sound equipment 1；
Two middle side part of top surface of sealing surrounding edge 2 is mounted on adjustable plate 6, and the inside of sealing surrounding edge 2 is fixedly connected with installation
Bracket 7, the top surface two sides of mounting bracket 7 offer stomata 8, and the inside of mounting bracket 7 is fixedly installed with magnetic returns structure；
Magnetic returns structure is made of upper conductive magnetic yoke 9, lower conductive magnetic yoke 10 and magnet unit 11, the two sides up and down point of magnet unit 11
It is not fixedly connected with conductive magnetic yoke 9 and lower conductive magnetic yoke 10, the two sides of upper conductive magnetic yoke 9 and lower conductive magnetic yoke 10 are interior with mounting bracket 7
Wall is fixedly connected, and the top of upper conductive magnetic yoke 9 is equipped with the first vibrating diaphragm 12, and the bottom of mounting bracket 7 is equipped with the second vibrating diaphragm 13；
The inside two sides of sealing surrounding edge 2 offer work nest 14, movable between the inner roof wall and inner bottom wall of work nest 14
Bull stick 15 is installed, the bottom outer surface of bull stick 15 is fixedly installed with driving gear 16, fixes on the left of the inner bottom wall of work nest 14
It is connected with limit plate 17, guide rod 19 is fixedly connected between limit plate 17 and the inner sidewall of work nest 14, the top of guide rod 19 is set
It is equipped with screw rod 18；
The left end of screw rod 18 is through limit plate 17 and is fixedly installed with linked gear 20, and the outside of screw rod 18 is equipped with sleeve
21, the bottom of sleeve 21 is fixedly connected with the supplemental cartridge 22 being arranged symmetrically, and the inner roof wall of work nest 14 is fixedly installed with positioning plate
23, the right side of positioning plate 23 is provided with loading plate 24；
Reinforcing rod 25 is installed between loading plate 24 and sleeve 21, is fixedly connected between loading plate 24 and positioning plate 23
There is buffer spring 26, the side of the separate reinforcing rod 25 of loading plate 24 is fixedly connected with the kelly 27 being arranged symmetrically, mounting bracket 7
Outer surface offer card slot 28.
A kind of optional technical solution as the utility model:
The outside of sealing surrounding edge 2 is fixedly connected with casing of sound equipment 1；
The both ends of hydraulic cylinder 5 are respectively fixedly connected with the inner bottom wall and abatvoix 4 of casing of sound equipment 1, by the way that hydraulic air is arranged
Cylinder 5 can meet significantly use demand, can set to volume, Jin Erti convenient for the volume size of adjusting chamber 3
Rise the depth of bass or the range performance of range.
A kind of optional technical solution as the utility model:
Adjustable plate 6 and the outer surface of sealing surrounding edge 2 are fitted and connected；
Stomata 8 runs through the inside of mounting bracket 7；
Upper conductive magnetic yoke 9 and lower conductive magnetic yoke 10 are located at the two sides up and down of magnet unit 11.
A kind of optional technical solution as the utility model:
First vibrating diaphragm 12 is fixedly connected with upper conductive magnetic yoke 9；
Second vibrating diaphragm 13 is fixedly connected with mounting bracket 7, by the first vibrating diaphragm 12 of setting and the second vibrating diaphragm 13, forms double loudspeakers
Framework, and a shared magnetic returns structure is realized, have effects that build truer range performance, enhances the practical of loudspeaker
Property.
A kind of optional technical solution as the utility model:
The top of bull stick 15 is run through the inner wall of work nest 14 and is fixedly connected with adjustable plate 6；
Linked gear 20 and driving gear 16 are angular wheel, linked gear 20 and the driving engagement connection of gear 16.
A kind of optional technical solution as the utility model:
One end of screw rod 18 is flexibly connected with limit plate 17, and the inner sidewall activity of the other end and work nest 14 of screw rod 18 connects
It connects；
21 screw thread of sleeve is socketed in the outer surface of screw rod 18；
Supplemental cartridge 22 is slidably socketed in the outer surface of guide rod 19.
A kind of optional technical solution as the utility model:
The both ends of reinforcing rod 25 are respectively fixedly connected with loading plate 24 and sleeve 21；
Kelly 27 and card slot 28 are equipped with, and kelly 27 and card slot 28 are clamped, and pass through setting adjustable plate 6, kelly 27 and card
Slot 28 improves the flexibility and reliability of loudspeaker, is conducive to the care and maintenance in later period convenient for the installation and removal of loudspeaker,
Simple and quick, user drives driving gear 16 positive or anti-by rotating adjustable plate 6 forward or backwards, by bull stick 15
To rotation, due to the transmission effect of gear, screw rod 18 is driven to rotate forward or backwards by linked gear 20, so that sleeve
21 are moved to the left or right, while guide rod 19 plays the role of guiding, and supplemental cartridge 22 is slided on guide rod 19, pass through reinforcing rod 25
It drives loading plate 24 to be moved to the left or right, therefore has achieved the purpose that control kelly 27 and the separation of card slot 28 or clamping.
In conclusion the loudspeaker that there is double diaphragm to share a magnetic returns structure, in a situation of use where, on the one hand by setting
Hydraulic cylinder 5 is set, use demand can be met significantly convenient for the volume size of adjusting chamber 3, volume can be set
It is fixed, and then the depth of bass or the range performance of range are promoted, on the other hand by the way that the first vibrating diaphragm 12 and the second vibrating diaphragm 13 is arranged,
Double horn framework is formed, and realizes a shared magnetic returns structure, has effects that build truer range performance, enhances loudspeaker
Practicability, improve loudspeaker secondly by setting adjustable plate 6, kelly 27 and card slot 28 convenient for the installation and removal of loudspeaker
Flexibility and reliability are conducive to the care and maintenance in later period, simple and quick, and user is adjusted by rotation forward or backwards
Plate 6 is saved, drives driving gear 16 to rotate forward or backwards by bull stick 15, due to the transmission effect of gear, passes through linked gear
20 drive screw rods 18 rotate forward or backwards, so that sleeve 21 is moved to the left or right, while guide rod 19 plays guiding
Effect, supplemental cartridge 22 are slided on guide rod 19, drive loading plate 24 to be moved to the left or right by reinforcing rod 25, therefore reach
Control the purpose of kelly 27 and the separation of card slot 28 or clamping.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in the second spy
It can be that the first and second features directly contact or the first and second features are connect indirectly by intermediary "above" or "below" sign
Touching.Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or
Oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section "
" following " can be fisrt feature and be directly under or diagonally below the second feature, or is merely representative of first feature horizontal height and is less than
Second feature.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm, including casing of sound equipment (1), it is characterised in that: the sound equipment
The top open part of shell (1) is equipped with sealing surrounding edge (2), shape between sealing surrounding edge (2) and the inner wall of casing of sound equipment (1)
At chamber (3), the inside of the chamber (3) is equipped with abatvoix (4), the inner bottom wall of the abatvoix (4) and casing of sound equipment (1)
Between the hydraulic cylinder (5) being arranged symmetrically is installed；
Two middle side part of top surface of sealing surrounding edge (2) is mounted on adjustable plate (6), and the inside of sealing surrounding edge (2) is fixed
It is connected with mounting bracket (7), the top surface two sides of the mounting bracket (7) offer stomata (8), the mounting bracket (7)
Inside is fixedly installed with magnetic returns structure；
The magnetic returns structure is made of upper conductive magnetic yoke (9), lower conductive magnetic yoke (10) and magnet unit (11), the magnet unit (11)
Two sides up and down be respectively fixedly connected with conductive magnetic yoke (9) and lower conductive magnetic yoke (10), the upper conductive magnetic yoke (9) and lower conductive magnetic yoke (10)
Two sides be fixedly connected with the inner wall of mounting bracket (7), the first vibrating diaphragm (12) are installed at the top of the upper conductive magnetic yoke (9),
The bottom of the mounting bracket (7) is equipped with the second vibrating diaphragm (13)；
The inside two sides of sealing surrounding edge (2) offer work nest (14), the inner roof wall of the work nest (14) and interior bottom
It is movably installed between wall bull stick (15), the bottom outer surface of the bull stick (15) is fixedly installed with driving gear (16), described
It is fixedly connected with limit plate (17) on the left of the inner bottom wall of work nest (14), the inner sidewall of the limit plate (17) and work nest (14)
Between be fixedly connected with guide rod (19), be provided with screw rod (18) above the guide rod (19)；
The left end of the screw rod (18) is through limit plate (17) and is fixedly installed with linked gear (20), outside the screw rod (18)
Side is equipped with sleeve (21), and the bottom of the sleeve (21) is fixedly connected with the supplemental cartridge (22) being arranged symmetrically, the work nest
(14) inner roof wall is fixedly installed with positioning plate (23), is provided with loading plate (24) on the right side of the positioning plate (23)；
It is equipped with reinforcing rod (25) between the loading plate (24) and sleeve (21), the loading plate (24) and positioning plate (23)
Between be fixedly connected with buffer spring (26), the side of the separate reinforcing rod (25) of the loading plate (24) is fixedly connected with pair
Claim the kelly (27) of arrangement, the outer surface of the mounting bracket (7) offers card slot (28).
2. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
The outside of sealing surrounding edge (2) is fixedly connected with casing of sound equipment (1)；
The both ends of the hydraulic cylinder (5) are respectively fixedly connected with the inner bottom wall and abatvoix (4) of casing of sound equipment (1).
3. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
The adjustable plate (6) and the outer surface of sealing surrounding edge (2) are fitted and connected；
The stomata (8) runs through the inside of mounting bracket (7)；
The upper conductive magnetic yoke (9) and lower conductive magnetic yoke (10) are located at the two sides up and down of magnet unit (11).
4. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
First vibrating diaphragm (12) is fixedly connected with upper conductive magnetic yoke (9)；
Second vibrating diaphragm (13) is fixedly connected with mounting bracket (7).
5. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
The top of the bull stick (15) is run through the inner wall of work nest (14) and is fixedly connected with adjustable plate (6)；
The linked gear (20) and driving gear (16) are angular wheel, the linked gear (20) and driving gear (16)
Engagement connection.
6. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
One end of the screw rod (18) is flexibly connected with limit plate (17), the other end and work nest (14) of the screw rod (18)
Inner sidewall is flexibly connected；
Sleeve (21) screw thread is socketed in the outer surface of screw rod (18)；
The supplemental cartridge (22) is slidably socketed in the outer surface of guide rod (19).
7. a kind of loudspeaker for sharing a magnetic returns structure with double diaphragm according to claim 1, it is characterised in that:
The both ends of the reinforcing rod (25) are respectively fixedly connected with loading plate (24) and sleeve (21)；
The kelly (27) and card slot (28) are equipped with, the kelly (27) and card slot (28) clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821829421.5U CN209017300U (en) | 2018-11-07 | 2018-11-07 | A kind of loudspeaker sharing a magnetic returns structure with double diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821829421.5U CN209017300U (en) | 2018-11-07 | 2018-11-07 | A kind of loudspeaker sharing a magnetic returns structure with double diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209017300U true CN209017300U (en) | 2019-06-21 |
Family
ID=66841703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821829421.5U Expired - Fee Related CN209017300U (en) | 2018-11-07 | 2018-11-07 | A kind of loudspeaker sharing a magnetic returns structure with double diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209017300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900763A (en) * | 2022-07-13 | 2022-08-12 | 常州声泰龙电子音响有限公司 | Waterproof stereo set of high structural strength |
-
2018
- 2018-11-07 CN CN201821829421.5U patent/CN209017300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900763A (en) * | 2022-07-13 | 2022-08-12 | 常州声泰龙电子音响有限公司 | Waterproof stereo set of high structural strength |
| CN114900763B (en) * | 2022-07-13 | 2022-09-20 | 常州声泰龙电子音响有限公司 | Waterproof stereo set of high structural strength |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20191107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |