CN113270971A - Outer rotor hydraulic motor generator - Google Patents
Outer rotor hydraulic motor generator Download PDFInfo
- Publication number
- CN113270971A CN113270971A CN202110421713.5A CN202110421713A CN113270971A CN 113270971 A CN113270971 A CN 113270971A CN 202110421713 A CN202110421713 A CN 202110421713A CN 113270971 A CN113270971 A CN 113270971A
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- China
- Prior art keywords
- rotor
- hydraulic motor
- motor generator
- radial
- tapered groove
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F03C2/304—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movements defined in sub-group F03C2/08 or F03C2/22 and relative reciprocation between members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to an outer rotor hydraulic motor generator. The permanent magnet motor mainly comprises a fixed shaft, an outer rotor, a permanent magnet magnetic pole, a stator, a coil and the like. The outer rotor is mainly formed by connecting a rotor embedded with blades and a side plate through bolts, a permanent magnet magnetic pole is pasted on the outer surface of the outer rotor, and a high-pressure oil inlet channel and a low-pressure oil return channel are arranged in the fixed shaft. When hydraulic oil is input from a high-pressure oil inlet channel in the fixed shaft, the outer rotor is pushed to rotate around the fixed shaft, and the permanent magnet magnetic poles on the outer rotor cut the stator coils, so that the purpose of power generation is achieved. The invention has the characteristics of simple structure and compact device.
Description
Technical Field
The invention relates to a hydraulic motor generator, in particular to a power generation device applied to a vibration energy recovery system of an automobile shock absorber.
Background
In order to reduce the impact of the road surface on the automobile body and improve the running smoothness of the automobile, a shock absorber is arranged in a suspension system of most automobiles. Hydraulic shock absorbers are widely used in automotive suspension systems. The hydraulic shock absorber takes hydraulic oil as a medium, and when the suspension moves back and forth relative to the vehicle body, the hydraulic oil repeatedly flows from one cavity to the other cavity through the damping hole. The friction between the damping holes and the hydraulic oil and the internal friction between liquid molecules form damping force, and the energy generated by vibration is dissipated in the air in the form of heat energy of the hydraulic oil in the shock absorber. If the vibration energy of the part can be recycled and utilized, the aim of saving energy can be achieved.
At present, the vibration energy of the vibration damper is recycled by adopting a mode of converting hydraulic energy into electric energy. For example, the patent described in application number CN201520412035.6 is mainly composed of a hydraulic working cylinder, a first check valve, a second check valve, an accumulator, a hydraulic motor, a generator, a hydraulic pipeline, a hydraulic-electric energy feedback system, and an oil supplementing device composed of an oil storage cylinder, a compression valve, and a compensation valve. The first one-way valve, the second one-way valve, the energy accumulator and the hydraulic motor are connected through hydraulic pipelines, the hydraulic pipelines are respectively communicated with the oil outlet of the rod cavity and the oil outlet of the rodless cavity of the hydraulic working cylinder to form a hydraulic energy feedback loop, the hydraulic energy feedback loop is arranged outside the hydraulic working cylinder and drives the hydraulic motor, and the hydraulic motor drives the generator to generate electricity to achieve the purpose of energy feedback.
The hydroelectric energy feedback type shock absorber described in application No. CN201010108889 comprises a hydraulic circuit, a working chamber and a piston, wherein the working chamber is divided into a piston working chamber and an energy storage and power generation chamber by a partition plate, and a hydraulic motor is located in the energy storage and power generation chamber and is connected with an external rotary power generator through a transmission shaft. The hydraulic circuit and the plurality of one-way valves form a hydraulic rectifier bridge. When the shock absorber works, under the action of the hydraulic rectifier bridge, oil in the pressure rising side oil chamber always enters from the oil inlet of the hydraulic motor and then flows into the pressure low side oil chamber, the oil driving motor always rotates along the same direction, and the vibration mechanical energy is converted into electric energy to be stored, so that energy conservation is realized.
However, the existing vibration energy recovery device of the hydraulic shock absorber adopts a mode that a hydraulic motor is connected with a generator in series, and has the defects of large volume, large occupied installation space and the like.
Disclosure of Invention
The invention provides an outer rotor hydraulic motor generator, which has higher generating efficiency under the condition of the same volume because the rotor is positioned outside and the surface area for installing magnetic poles is larger. Meanwhile, the motor is embedded into the generator, the structure has the characteristics of small volume and compact structure, and can be placed in the hydraulic shock absorber or directly connected with the hydraulic shock absorber, so that the energy recycling is realized.
The technical scheme disclosed by the invention is as follows: an outer rotor hydraulic motor generator comprises a fixed shaft, wherein a high-pressure oil inlet channel is arranged at one end in the fixed shaft, a low-pressure oil return channel is arranged at the other end in the fixed shaft, and the axial cross section of a matching section of the fixed shaft and a rotor is an ellipse formed by two sections of long half-axis arcs, two sections of short half-axis arcs and four sections of transition curves; a tapered groove A ', a tapered groove A' and a tapered groove B ', a tapered groove B' are also formed in the circumferential direction of the four transition curve positions; the four sections of transition curve positions are also provided with a radial oil duct A, a radial oil duct B, a radial oil duct C and a radial oil duct D, a high-pressure oil inlet duct 15 is communicated with the radial oil duct A and the radial oil duct B, a low-pressure oil return duct 16 is communicated with the radial oil duct C and the radial oil duct D, two sides of a matching section are rotatably provided with a side plate A and a side plate B, a rotor is fixed between the side plate A and the side plate B and is in sealing fit with the side plate A and the side plate B to form a closed sealing cavity, the inner surface of the rotor is a cylindrical surface, a plurality of radial grooves are uniformly distributed and processed in the circumferential direction of the inner surface of the rotor, blades are arranged in the radial grooves, a reset mechanism is arranged between the blades and the bottoms of the radial grooves, two long semi-axis arcs are in sealing fit with the inner surface of the rotor, two short semi-axis arcs are in sealing fit with the corresponding blades, and four closed cavities with variable volume are formed between the inner surface of the rotor, the two short semi-axis arcs and the blades corresponding to the two short semi-axis arcs, a plurality of magnetic poles N and magnetic poles S are uniformly adhered to the circumference of the outer surface of the rotor at intervals, the shell is sleeved on the fixed shaft, the stator is fixedly placed in the shell, and a coil is embedded in the stator.
In addition to the above, preferably, the arc lengths of the tapered groove a ', the tapered groove a ″ and the tapered groove B', the tapered groove B ″ correspond to a central angle of 45 degrees.
In addition to the above, preferably, the side plate a and the side plate B are mounted on the fixed shaft by using bearings and sealed by shaft seal rings.
In addition to the above, preferably, the side plates a and B are sealed at both sides of the rotor by a seal ring and fastened by bolts.
On the basis of the scheme, preferably, the inner surface of the rotor is a cylindrical surface, and 8 radial grooves are uniformly machined in the circumferential direction towards the inner surface.
In addition to the above, the side plates and the rotor are preferably made of copper or aluminum, which is a non-magnetic material.
In addition to the above, it is preferable that the number of the magnetic poles N and the magnetic poles S is 4, and the magnetic poles N and the magnetic poles S are uniformly spaced in the circumferential direction.
In addition to the above, it is preferable that the stator is formed by fixing 12 groups of coils to the housing, and the coils constitute one item for every 4 groups.
In addition to the above, preferably, a gap is provided between the rotor and the stator.
In addition to the above, preferably, the return mechanism is a spring.
Compared with the prior art, the invention has the following beneficial effects:
the outer rotor hydraulic motor generator has the advantages of being compact in structure, small in size and the like, can be placed inside the hydraulic shock absorber or directly connected with the hydraulic shock absorber, and can effectively recover vibration energy of the shock absorber.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of fig. 1.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
As shown in fig. 1-2, an external rotor hydraulic motor generator comprises a fixed shaft 1, wherein a high-pressure oil inlet channel 15 is arranged at one end in the fixed shaft, a low-pressure oil return channel 16 is arranged at the other end in the fixed shaft, and the axial section of a matching section of the fixed shaft 1 and a rotor is an ellipse formed by two sections of long semi-axis arcs, two sections of short semi-axis arcs and four sections of transition curves; a tapered groove A ', a tapered groove A' and a tapered groove B ', a tapered groove B' are also formed in the circumferential direction of the four transition curve positions; the arc lengths of the conical groove A ', the conical groove A' and the conical groove B ', and the conical groove B' correspond to the central angle of 45 degrees.
A radial oil passage A1501, a radial oil passage B1502, a radial oil passage C1601 and a radial oil passage D1602 are further processed at the four-section transition curve position; the high-pressure oil inlet passage 15 is communicated with the radial oil passage A1501 and the radial oil passage B1502, and the low-pressure oil return passage 16 is communicated with the radial oil passage C1601 and the radial oil passage D1602. The two sides of the middle section are rotatably provided with a side plate A4 and a side plate B7, the rotor is fixed between the side plates A4 and B7 and forms a closed sealing cavity with the side plate A4 and the side plate B7 through a sealing ring 6 in a sealing fit mode, the inner surface of the rotor 14 is a cylindrical surface, the arcs of the long half shafts at two ends are in sealing fit with the inner surface of the rotor, 8 radial grooves are uniformly processed in the circumferential direction of the inner surface of the rotor, blades 5 are installed in the radial grooves, a reset mechanism is installed between the blades and the bottoms of the radial grooves, the reset mechanism can be a spring and can be pressure oil and the like to ensure that the blades are in sealing fit with the corresponding arcs of the two short half shafts when contact is formed, 4 magnetic poles N10 and 4 magnetic poles S11 are uniformly adhered to the circumference of the outer surface of the rotor 14 at intervals, the shell 2 is sleeved on the fixed shaft 1, the stator 12 is fixedly arranged in the shell, and a coil 13 is embedded on the stator 12.
The side plate a4 and the side plate B7 are attached to the stationary shaft 1 by the bearing 3, rotate around the stationary shaft 1, and are sealed with the shaft seal ring 8.
The stator 12 is formed by 12 sets of coils fixed to the housing 2.
A gap is left between the rotor 14 and the stator 12.
The side plate a4 and the side plate B7 are sealed by the seal ring 6 and the rotor 14, and fastened by bolts 9. Side panel A4, side panel B7 and rotor 14 are all made of non-magnetic material. Such as a copper or aluminum material.
The radial grooves are 8 and are evenly distributed in the circumferential direction.
The number of the magnetic poles N and S is 4, and the magnetic poles N and S are evenly distributed in the circumferential direction.
According to the outer rotor hydraulic motor provided by the application, the axial cross section of the middle section of the fixed shaft 1 is an ellipse consisting of two sections of long semi-axis arcs, two sections of short semi-axis arcs and four sections of transition curves, and the outer surface of the section of the ellipse, the inner cylindrical surface of the rotor 14 and two adjacent blades 5 form four closed cavities with variable volume when the rotor rotates. The cavities corresponding to the conical groove A 'and the conical groove A' are high-pressure cavities which are respectively communicated with the high-pressure oil inlet channel 15 through a radial oil channel A1501 and a radial oil channel B1502; and cavities corresponding to the tapered groove B 'and the tapered groove B' are low-pressure cavities and are communicated with the low-pressure oil return channel 16 through a radial oil channel C1601 and a radial oil channel D1602 respectively.
The hydraulic oil enters the fixed shaft 1 from the high-pressure oil inlet pipeline 15, and the hydraulic oil conveys the high-pressure oil to the tapered groove A 'and the tapered groove A' through the radial oil duct A1501 and the radial oil duct B1502, so that the high-pressure oil is conveyed to a high-pressure sealing cavity formed by the rotor 14 and the middle section, and because one side of the blade 5 is a high-pressure cavity and the other side is a low-pressure cavity, the high-pressure oil pushes the blade 5 to drive the rotor 14 to rotate under the action of pressure difference, and the hydraulic energy is converted into mechanical energy. The hydraulic oil losing pressure energy is brought to the low-pressure chamber along with the rotation of the rotor 14, and flows out from the tapered grooves B' and B ″ through the radial oil passage C1601 and the radial oil passage D1602 back to the low-pressure oil return passage 16.
The hydraulic motor converts hydraulic energy into mechanical energy, the rotor 14 rotates to drive the magnetic pole N10 and the magnetic pole S11 outside the rotor 14 to rotate, the stator 12 is fixed with the shell 2, the shell 2 is fixed on the fixed shaft 1, relative motion is generated between the coil 13 on the stator 12 and the magnetic pole N10 and the magnetic pole S11, magnetic induction lines are cut, the hydraulic motor rotates and generates electricity, the utilization rate of generated energy of the hydraulic motor is improved, and the mechanical energy is converted into electric energy.
Wherein, through installing stator 12 on casing 2, rotor 14 nests on fixed axle 1, leaves the space between rotor 14 and the stator 12, does not hinder rotor 14 rotation.
The outer rotor hydraulic motor that provides in this application, because the rotor is located the outside, the surface area that supplies the installation magnetic pole is bigger, so the generating efficiency is higher under the condition of equal volume. Meanwhile, the motor is embedded into the generator, the structure has the characteristics of small volume and compact structure, and can be placed in the hydraulic shock absorber or directly connected with the hydraulic shock absorber, so that the energy recycling is realized.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An outer rotor hydraulic motor generator is characterized by comprising a fixed shaft, wherein one end in the fixed shaft is provided with a high-pressure oil inlet channel, the other end is provided with a low-pressure oil return channel, and the axial cross section of a matching section of the fixed shaft and a rotor is in an ellipse formed by two sections of long half-axis arcs, two sections of short half-axis arcs and four sections of transition curves; a tapered groove A ', a tapered groove A' and a tapered groove B ', a tapered groove B' are also formed in the circumferential direction of the four transition curve positions; a radial oil duct A, a radial oil duct B, a radial oil duct C and a radial oil duct D are further processed at the positions of the four sections of transition curves, a high-pressure oil inlet duct 15 is communicated with the radial oil duct A and the radial oil duct B, a low-pressure oil return duct 16 is communicated with the radial oil duct C and the radial oil duct D, a side plate A and a side plate B are rotatably installed at two sides of a matching section, a rotor is fixed between the side plate A and the side plate B and is in sealing fit with the side plate A and the side plate B to form a closed sealing cavity, the inner surface of the rotor is a cylindrical surface, a plurality of radial grooves are uniformly processed in the circumferential direction of the inner surface of the rotor, blades are installed in the radial grooves, a reset mechanism is installed between each blade and the bottom of the radial groove, long half shaft arcs at two ends are in sealing fit with the inner surface of the rotor, two short half shaft arcs are in sealing fit with the corresponding blades, and four, a plurality of magnetic poles N and magnetic poles S are uniformly adhered to the circumference of the outer surface of the rotor at intervals, the shell is sleeved on the fixed shaft, the stator is fixedly placed in the shell, and a coil is embedded in the stator.
2. An external rotor hydraulic motor generator as claimed in claim 1, wherein the arc lengths of the tapered groove a ', tapered groove a "and tapered groove B', tapered groove B" correspond to a central angle of 45 degrees.
3. An external rotor hydraulic motor generator as claimed in claim 1, wherein side plates a and B are mounted on the stationary shaft with bearings and sealed with shaft seals.
4. An external rotor hydraulic motor generator as claimed in claim 1, wherein side plates a, B are sealed with seal rings and rotor sides and fastened with bolts.
5. An external rotor hydraulic motor generator as claimed in claim 1, wherein the inner surface of the rotor is cylindrical and 8 radial slots are uniformly machined circumferentially in the direction towards the inner surface.
6. An external rotor hydraulic motor generator as claimed in claim 1, wherein the side plates and rotor are made of copper or aluminum which is a non-magnetic material.
7. An external rotor hydraulic motor generator as claimed in claim 1, wherein there are 4 poles N and S, and they are evenly spaced in the circumferential direction.
8. An external rotor hydraulic motor generator as claimed in claim 1, wherein the stator is formed by 12 sets of coils fixed to the housing, one for each 4 sets of coils.
9. An external rotor hydraulic motor generator as claimed in claim 1, wherein a gap is left between the rotor and the stator.
10. An external rotor hydraulic motor generator as claimed in claim 1, wherein the return mechanism is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110421713.5A CN113270971B (en) | 2021-04-20 | 2021-04-20 | Outer rotor hydraulic motor generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110421713.5A CN113270971B (en) | 2021-04-20 | 2021-04-20 | Outer rotor hydraulic motor generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113270971A true CN113270971A (en) | 2021-08-17 |
| CN113270971B CN113270971B (en) | 2022-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110421713.5A Active CN113270971B (en) | 2021-04-20 | 2021-04-20 | Outer rotor hydraulic motor generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113270971B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031465A1 (en) * | 2003-08-07 | 2005-02-10 | Dreiman Nelik I. | Compact rotary compressor |
| JP2008151214A (en) * | 2006-12-15 | 2008-07-03 | Honda Motor Co Ltd | Vane type hydraulic equipment, motor, and valve timing control device for internal combustion engine |
| US20110002797A1 (en) * | 2009-07-01 | 2011-01-06 | Nippon Soken, Inc. | Rotary machine |
| CN209146027U (en) * | 2018-09-25 | 2019-07-23 | 苏州华易航动力科技有限公司 | A kind of rotary actuator of hydraulic angle vibration table |
-
2021
- 2021-04-20 CN CN202110421713.5A patent/CN113270971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031465A1 (en) * | 2003-08-07 | 2005-02-10 | Dreiman Nelik I. | Compact rotary compressor |
| JP2008151214A (en) * | 2006-12-15 | 2008-07-03 | Honda Motor Co Ltd | Vane type hydraulic equipment, motor, and valve timing control device for internal combustion engine |
| US20110002797A1 (en) * | 2009-07-01 | 2011-01-06 | Nippon Soken, Inc. | Rotary machine |
| CN209146027U (en) * | 2018-09-25 | 2019-07-23 | 苏州华易航动力科技有限公司 | A kind of rotary actuator of hydraulic angle vibration table |
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| Publication number | Publication date |
|---|---|
| CN113270971B (en) | 2022-05-17 |
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Effective date of registration: 20221206 Address after: No. 16, Lingang Science and Technology Pioneer Park, Xiashu Town, Jurong City, Zhenjiang City, Jiangsu Province, 212412 Patentee after: Jiangsu Lianbo Precision Technology Co.,Ltd. Address before: 223005 Huaian 1 Jiangsu economic and Technological Development Zone Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY |
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