CN210126555U - Aluminum alloy front auxiliary frame - Google Patents
Aluminum alloy front auxiliary frame Download PDFInfo
- Publication number
- CN210126555U CN210126555U CN201920803992.XU CN201920803992U CN210126555U CN 210126555 U CN210126555 U CN 210126555U CN 201920803992 U CN201920803992 U CN 201920803992U CN 210126555 U CN210126555 U CN 210126555U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- aluminum alloy
- main beam
- angled
- main
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 26
- 238000005452 bending Methods 0.000 claims abstract description 8
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009545 invasion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to an aluminum alloy front auxiliary frame, which comprises a bending main beam with an opening facing the rear part of a vehicle; a pair of side members connected to the main member and extending forward of the vehicle; and a cross member connecting the pair of side members and located near the front of the vehicle. The main beam is arranged into a structure which is bent towards the rear of the vehicle, and an open cavity formed by the bent main beam can be used for placing a battery or other structural components, so that the arrangement of the battery is closer to the front direction of the vehicle, and the load balance of the whole vehicle is facilitated; meanwhile, effective space is provided for arranging more battery packs, and the endurance mileage of the automobile is increased. The utility model discloses a sub vehicle frame structure before the aluminum alloy does benefit to the lightweight of vehicle, the utility model discloses a preceding sub vehicle frame is full frame structure, has increased the transmission route of vehicle collision for the deformation mode and the energy-absorbing efficiency of sub vehicle frame are higher before the aluminum alloy, and the invasion volume when bumping before the effective reduction vehicle.
Description
Technical Field
The utility model belongs to electric automobile chassis field, concretely relates to sub vehicle frame before aluminum alloy for install on electric automobile.
Background
The auxiliary frame is a framework of a front axle and a rear axle of the automobile, is an important component of an automobile chassis and plays an important role in connection and bearing. The auxiliary frame can reduce the transmission of road surface vibrations, improves suspension's connection rigidity, and the car that consequently is equipped with the auxiliary frame drives and can feel the chassis very solid, also can disperse the dynamics of road surface impact. The front auxiliary frame can also play a role in transferring collision force in collision, and contributes to collision safety. However, since the weight of the sub-frame is a large proportion of the weight of the chassis, various light-weight materials and design structures have been developed in various main machinery factories for the purpose of reducing the weight.
The light weight effect of the auxiliary frame in the prior art is not ideal due to the fact that the occupied space of the auxiliary frame is large, particularly the arrangement position of a battery cannot be too far forward, and load balance of the whole vehicle is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve all or part of the problems, the utility model aims to provide an aluminum alloy front auxiliary frame, which enables the arrangement of batteries to be closer to the front of a vehicle and is beneficial to the load balance of the whole vehicle; meanwhile, effective space is provided for arranging more battery packs, and the endurance mileage of the automobile is increased.
The utility model provides a sub vehicle frame before aluminum alloy, include: a curved main beam having an opening facing the rear of the vehicle; a pair of side members connected to the main member and extending forward of the vehicle; and the cross beam is connected with the pair of longitudinal beams and is close to the front position of the vehicle.
Furthermore, the main beam, the longitudinal beam and the cross beam are all aluminum alloy extruded parts, and the sections of the main beam, the longitudinal beam and the cross beam are all in a shape like the Chinese character 'ri', 'mu' or 'tian'.
Further, the main beam includes a first curved portion, and a pair of first inclined portions connected to a tip end of the first curved portion, wherein the first inclined portions extend obliquely from the tip end of the first curved portion toward the vehicle rear and outward in the vehicle width direction.
Furthermore, the main beam is of a U-shaped bilateral symmetry structure, and the included angle between one pair of the first inclined parts is 30-90 degrees.
Further, the side member includes a second inclined portion, a second curved portion, and a cross member connecting portion connected in this order, wherein the second inclined portion is connected to the first inclined portion of the main member and extends obliquely toward the vehicle front and the vehicle width direction outer side.
Further, the included angle between the second inclined part and the first inclined part is 60-90 degrees.
Further, the first inclined part comprises a longitudinal beam connecting hole which can be connected with the second inclined part and a first through hole which can be connected with a front cabin of the vehicle body; the longitudinal beam connecting hole is positioned at one end, close to the first bending part, of the first inclined part, can accommodate the tail end of the second inclined part and is horizontally welded with the second inclined part;
the first through hole is positioned at one end, far away from the first bending part, of the first inclined part, can be provided with a threaded pipe sleeve and is vertically connected with the bottom of the front cabin of the vehicle body through a bolt;
along the direction of perpendicular to the vehicle bottom, the height of first inclined portion is greater than the height of second inclined portion.
Further, a second through hole capable of being provided with a threaded pipe sleeve and vertically connected with the bottom of the front cabin of the vehicle body through a bolt is formed in one end, close to the second bending portion, of the second inclined portion.
The beam connecting part comprises a beam connecting hole which can accommodate the tail end of the beam and is horizontally welded with the beam connecting hole, and a mounting hole which is arranged at one end of the beam connecting part close to the front of the vehicle and can be connected with a front end module of the vehicle body;
along the direction perpendicular to the vehicle bottom, the height of the cross beam is smaller than that of the cross beam connecting part.
Further, the first inclined part, the second inclined part and the beam connecting part are all rectangular column structures.
The aluminum alloy front auxiliary frame of the utility model has the advantages that the girder is arranged into a structure bending towards the rear of the vehicle, and the open cavity formed by the bent girder can be used for placing batteries or other structural components, so that the arrangement of the batteries is closer to the front direction of the vehicle, and the load balance of the whole vehicle is facilitated; meanwhile, effective space is provided for arranging more battery packs, and the endurance mileage of the automobile is increased. The utility model discloses a sub vehicle frame structure before the aluminum alloy has reduced the weight of the preceding sub vehicle frame of metal or partial metal preparation among the prior art by a wide margin, does benefit to the lightweight of vehicle, the utility model discloses a preceding sub vehicle frame has increased the transmission route of vehicle collision for the deformation mode energy-absorbing efficiency of sub vehicle frame is higher before the aluminum alloy, can reduce the invasion volume when bumping before the vehicle.
The utility model discloses a preceding sub vehicle frame has simple structure, simple to operate, has certain commonality and does benefit to characteristics such as lightweight design of whole car.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic perspective view of an aluminum alloy front subframe according to an embodiment of the present invention;
FIG. 2 is a perspective view of the main beam of FIG. 1;
fig. 3 is a perspective view of the stringer shown in fig. 1.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the aluminum alloy front subframe 001 of the present embodiment is used for being mounted on a front floor of an automobile and connected to a front end module of the automobile. The aluminum alloy front auxiliary frame 001 comprises a main beam 1, a pair of longitudinal beams 2 and a cross beam 3, wherein the main beam 1 is a bending structure with an opening facing the rear of a vehicle; the longitudinal beam 2 is connected with the main beam 1 and extends towards the front of the vehicle; the cross member 3 connects the pair of side members 2 and is located near the front of the vehicle.
The aluminum alloy front auxiliary frame 001 of the utility model is provided with the girder 1 which is bent towards the rear of the vehicle, and the open cavity formed by the bent girder 1 can be used for placing batteries or other structural components, so that the arrangement of the batteries is closer to the front direction of the vehicle, and the load balance of the whole vehicle is facilitated; meanwhile, effective space is provided for arranging more battery packs, and the endurance mileage of the automobile is increased. The utility model discloses a sub vehicle frame 001 structure before the aluminum alloy has reduced the weight of the preceding sub vehicle frame 001 of metal or partial metal preparation among the prior art by a wide margin, does benefit to the lightweight of vehicle, the utility model discloses a preceding sub vehicle frame 001 is full frame structure, has increased the transmission route of vehicle collision for sub vehicle frame 001's deformation mode, energy-absorbing efficiency are higher before the aluminum alloy, can reduce the invasion amount when bumping before the vehicle.
In order to pursue the light weight of the vehicle body, the main beam 1, the longitudinal beam 2 and the cross beam 3 of the present embodiment are all hollow tube structures, and the cross section of the main beam is in a shape like a Chinese character 'ri', 'mu' or 'tian', and the design improves the impact resistance of the front subframe 001 for bearing high and low speed impact. In order to further reduce the weight of the vehicle frame, the main beam 1, the longitudinal beam 2 and the cross beam 3 of the front auxiliary frame 001 are all extrusion molding pieces made of aluminum alloy, the front auxiliary frame 001 can absorb part of collision energy through crumple deformation when the vehicle collides due to selection of the aluminum alloy materials, and the manufacturing cost of the front auxiliary frame 001 is reduced on the basis of ensuring the impact resistance and strength of the front auxiliary frame 001 by the aid of the extrusion molding process. The front auxiliary frame 001 formed by extrusion molding of the aluminum alloy has controllable structural strength and is easy to machine and form due to the technical characteristics of the front auxiliary frame.
Referring to fig. 1 and 2, the main beam 1 in the present embodiment includes a first bent portion 101, and a pair of first inclined portions 102 connected to the distal end of the first bent portion 101, wherein the first inclined portions 102 extend obliquely from the distal end of the first bent portion 101 toward the vehicle rear and outward in the vehicle width direction.
The first inclined portion 102 includes a first through hole 121 capable of being connected to the front compartment of the vehicle body, and the first through hole 121 is located at an end of the first inclined portion 102 away from the first bent portion 101, and is capable of being mounted with the screw boss 4 and vertically connected to the bottom of the front compartment of the vehicle body by the bolt 5. Because the preceding sub vehicle frame 001 structure of aluminum alloy material is compared in the intensity of metal material lower, easily take place deformation when external effort is great, here through set up threaded pipe box 4 in first via hole 121, bolt 5 is from upwards running through the threaded pipe box 4 of first via hole 121 from the bottom that is fixed in the front cabin of car with first rake 102, the intensity of first via hole 121 has been promoted, impact resistance and wearability, the first via hole 121 non-deformable of protection aluminum alloy base member, and the connection steadiness of preceding sub vehicle frame 001 and car front cabin has been promoted.
The structural design of the bent main beam 1 in the embodiment effectively increases the contact area between the main beam 1 and the bottom of the front cabin of the automobile, improves the capability of absorbing road vibration and noise energy during the running process of the automobile, reduces the energy directly entering the cabin, and further improves the driving satisfaction degree of a user; on the other hand, the bent main beam 1 structure protrudes towards the cross beam 3, so that the occupied space of the front auxiliary frame 001 at the front end of the vehicle is reduced as much as possible, and the front arrangement of a battery is facilitated; on the other hand, compared with a straight main beam 1 structure, the strength and the energy absorption efficiency of the bent main beam 1 structure are obviously improved. In a preferred embodiment, the main beam 1 can be a U-shaped bilateral symmetrical structure or a substantially V-shaped bilateral symmetrical structure, and the included angle of one pair of the first inclined parts 102 is 30-90 degrees, and the included angle of one pair of the first inclined parts 102 is 60 degrees in the preferred embodiment.
Referring to fig. 1 and 3, the side member 2 of the present embodiment includes a second inclined portion 201, a second curved portion 202, and a cross member connecting portion 203, which are connected in this order, wherein the second inclined portion 201 is connected to the first inclined portion 102 of the main member 1 near the outside in the vehicle width direction and extends obliquely toward the vehicle front and the outside in the vehicle width direction. The angle between the second inclined portion 201 and the first inclined portion 102 is 60-90 deg.. In this embodiment, the connection position relationship between the second inclined portion 201 and the first inclined portion 102 can effectively improve the connection strength between the longitudinal beam 2 and the main beam 1, so as to enhance the rigidity of the front subframe 001 in the vehicle length and width directions, ensure the connection strength of other suspension members connected thereto, and further improve the stability of the driving of the vehicle.
The beam connecting portion 203 includes a beam connecting hole 231 at a middle position thereof, and the beam connecting hole 231 can receive and be horizontally welded to an end of the beam 3. The tail end of the cross beam 3 is placed into the cross beam connecting hole 231 of the cross beam connecting portion 203 and connected through welding, so that the contact area and the connection strength of the cross beam and the cross beam are guaranteed to the maximum extent, and meanwhile, the rigidity of the front auxiliary frame 001 in the vehicle width direction is effectively enhanced. In a preferred embodiment, the height of the cross beam 3 is smaller than the height of the cross beam connection 203 in a direction perpendicular to the bottom of the vehicle. Through setting up the crossbeam connecting hole 231 inner chamber into the identical structure with crossbeam 3 outer wall, can directly insert crossbeam 3 in the crossbeam 3 mounting hole 232, avoid the height less than or equal to crossbeam 3 of crossbeam connecting portion 203 and need carry out secondary operation to crossbeam 3 end just can accomplish the connection of the two. The design of the height relationship between the beam 3 and the beam connecting portion 203 of the present embodiment is advantageous to reduce the processing procedures and the manufacturing cost.
Referring to fig. 1 and 2, the first inclined portion 102 includes a stringer connecting hole 122 connectable to the second inclined portion 201, the stringer connecting hole 122 being located at an end of the first inclined portion 102 near the first bent portion 101, which is capable of receiving and being horizontally welded to an end of the second inclined portion 201. The end of the second inclined part 201 is placed into the stringer connecting hole 122 of the first inclined part 102 and connected by welding, so that the contact area and the connection strength of the two are ensured to the maximum extent. In a preferred embodiment, the height of the first inclined part 102 is greater than that of the second inclined part 201 along the direction perpendicular to the vehicle bottom, and the second inclined part 201 can be directly inserted into the stringer connecting hole 122 by arranging the inner cavity of the stringer connecting hole 122 to be matched with the outer wall of the second inclined part 201, so that the situation that the height of the first inclined part 102 is less than or equal to the height of the second inclined part 201 and the tail end of the second inclined part 201 needs to be subjected to secondary processing to complete the connection of the first inclined part and the second inclined part is avoided. The design of the height relationship between the first inclined part 102 and the second inclined part 201 of the present embodiment is beneficial to reducing the processing procedure and reducing the manufacturing cost.
In the present embodiment, the second inclined portion 201 is provided with a second through hole 221, which is capable of attaching the screw boss 4 and is vertically connected to the vehicle body front cabin bottom portion by the bolt 5, at an end close to the second curved portion 202. The second via hole 221 in this embodiment is combined with the first via hole 121, so that the connection strength between the front subframe 001 and the front cabin of the vehicle is further improved.
The first inclined portion 102, the second inclined portion 201 and the beam connecting portion 203 are preferably rectangular column structures, and the manufacturing difficulty and the manufacturing cost of the front subframe 001 are effectively reduced.
The aluminum alloy front subframe 001 of the present embodiment may be installed in an electric vehicle, which may be a two-compartment vehicle, a three-compartment vehicle, an SUV, a surface-packaged vehicle, and the like.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "upper," "lower," "horizontal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless specifically stated or limited otherwise by 5, the terms "mounted," "connected," "oriented," and the like are to be construed broadly and include, for example, directional connections, releasable connections, or integral combinations thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The utility model provides a sub vehicle frame before aluminum alloy which characterized in that includes:
a curved main beam having an opening facing the rear of the vehicle;
a pair of side members connected to the main member and extending forward of the vehicle;
and the cross beam is connected with the pair of longitudinal beams and is close to the front position of the vehicle.
2. The front subframe of claim 1 wherein said main, longitudinal and cross members are aluminum alloy extrusions having a cross-section in the shape of a "ri", "mu" or "tian".
3. The front subframe of claim 2 wherein the main beam includes a first curved portion, a pair of first inclined portions connected to distal ends of the first curved portion, wherein the first inclined portions extend obliquely from the distal ends of the first curved portion toward a rear of the vehicle and outward in a vehicle width direction.
4. The front subframe of claim 3 wherein said main beam is a "U" shaped bilateral symmetry having an included angle of 30 ° to 90 ° with respect to said first angled portion.
5. The front sub frame according to claim 3, wherein the side member includes a second inclined portion, a second curved portion, and a cross member connecting portion connected in this order, wherein the second inclined portion is connected to the first inclined portion of the main member and extends obliquely toward the front of the vehicle and the outside in the vehicle width direction.
6. The front subframe of claim 5 wherein said second angled portion is angled from 60 ° to 90 ° relative to said first angled portion.
7. The front subframe of claim 5 wherein said first angled portion includes a rail attachment hole connectable to said second angled portion and a first through hole connectable to a front compartment of the vehicle body; the longitudinal beam connecting hole is positioned at one end, close to the first bending part, of the first inclined part, can accommodate the tail end of the second inclined part and is horizontally welded with the second inclined part;
the first through hole is positioned at one end, far away from the first bending part, of the first inclined part, can be provided with a threaded pipe sleeve and is vertically connected with the bottom of the front cabin of the vehicle body through a bolt;
along the direction of perpendicular to the vehicle bottom, the height of first inclined portion is greater than the height of second inclined portion.
8. The front subframe of claim 5 wherein said second angled portion is provided at an end adjacent to said second bent portion with a second through hole adapted to receive a threaded bushing and to be bolted vertically to the front underbody.
9. The front subframe of claim 5 wherein said beam attachment portion includes a beam attachment hole adapted to receive and be welded horizontally to an end of said beam and a mounting hole adapted to be attached to a front end module of the vehicle body at an end of said beam attachment portion adjacent the front of the vehicle;
along the direction perpendicular to the vehicle bottom, the height of the cross beam is smaller than that of the cross beam connecting part.
10. The front subframe of claim 5 wherein said first angled portion, said second angled portion, and said cross member connecting portion are each of a rectangular pillar configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803992.XU CN210126555U (en) | 2019-05-30 | 2019-05-30 | Aluminum alloy front auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803992.XU CN210126555U (en) | 2019-05-30 | 2019-05-30 | Aluminum alloy front auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210126555U true CN210126555U (en) | 2020-03-06 |
Family
ID=69662925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920803992.XU Active CN210126555U (en) | 2019-05-30 | 2019-05-30 | Aluminum alloy front auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210126555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771948A (en) * | 2021-08-25 | 2021-12-10 | 重庆长安汽车股份有限公司 | Front structure of lower vehicle body |
-
2019
- 2019-05-30 CN CN201920803992.XU patent/CN210126555U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771948A (en) * | 2021-08-25 | 2021-12-10 | 重庆长安汽车股份有限公司 | Front structure of lower vehicle body |
| CN113771948B (en) * | 2021-08-25 | 2023-12-12 | 深蓝汽车科技有限公司 | Lower vehicle body front structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11161549B2 (en) | Vehicle body rear structure | |
| CN108349537B (en) | Front auxiliary frame structure | |
| US11097679B2 (en) | Vehicle body rear structure | |
| RU2133686C1 (en) | Automobile beam-type chassis | |
| US8393669B2 (en) | Vehicle frame structure | |
| CN112874637B (en) | Automobile body rear deck frame assembly and vehicle | |
| CN108357565B (en) | Front body structure and chassis for electric motor vehicle | |
| JP5329575B2 (en) | Vehicle body front | |
| US7735870B2 (en) | Front structure of vehicle body | |
| US20080150326A1 (en) | Front Structure of Vehicle Body | |
| US20080238150A1 (en) | Vehicle body structure | |
| EP1705107A1 (en) | A front subframe of a motor vehicle | |
| KR102322265B1 (en) | Frame for electric cars | |
| US9260134B2 (en) | Vehicle-body front structure | |
| JP5949043B2 (en) | Front subframe structure | |
| US20220032758A1 (en) | Vehicle body structure | |
| JP7384065B2 (en) | Vehicle front body structure | |
| JP2013203241A (en) | Front sub-frame structure | |
| CN210126555U (en) | Aluminum alloy front auxiliary frame | |
| KR20200080706A (en) | Frame for electric cars | |
| CN210912613U (en) | Front auxiliary frame with energy absorption function and automobile | |
| CN110588785A (en) | Longitudinal beam bends down and vehicle | |
| CN215883807U (en) | Vehicle body front end reinforcing structure | |
| CN115892225A (en) | Vehicle front structure | |
| CN113147914A (en) | Auxiliary frame structure before steel aluminium mixed type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230131 Granted publication date: 20200306 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240108 Granted publication date: 20200306 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240227 Granted publication date: 20200306 |
|
| PP01 | Preservation of patent right |