CN117674632A - Sponge soft contact type friction nano generator based on 3D printing - Google Patents
Sponge soft contact type friction nano generator based on 3D printing Download PDFInfo
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- CN117674632A CN117674632A CN202311671392.XA CN202311671392A CN117674632A CN 117674632 A CN117674632 A CN 117674632A CN 202311671392 A CN202311671392 A CN 202311671392A CN 117674632 A CN117674632 A CN 117674632A
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- 238000010146 3D printing Methods 0.000 title claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
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- 230000007547 defect Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
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- 230000003068 static effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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Abstract
The invention discloses a sponge soft contact type friction nano generator based on 3D printing, which comprises a wind cup assembly and a friction generator mechanism which are connected and driven through a rotary rod roller mechanism, wherein a plurality of axial grooves are uniformly distributed on the inner wall of a shell along the circumferential direction, an annular sponge substrate is sleeved and arranged on the inner wall of the shell, the rotary rod roller mechanism is arranged in the annular sponge substrate, and a first friction unit and a second friction unit which are opposite in friction charge are respectively arranged on the outer side of the annular sponge substrate and in the axial grooves. The technical characteristics of soft contact in the friction nano generator effectively solve the technical defects of low output power density, large friction layer material loss, short service life and the like of the common friction nano generator, and realize stable output of output current and output voltage.
Description
Technical Field
The invention belongs to the technical field of friction nano generators, and particularly relates to a sponge soft contact type friction nano generator based on 3D printing.
Background
With the continuous development of global industry, the energy problem is particularly serious in the world today, the energy supply is unstable, and the traditional fossil energy power generation mode has limited resources and brings about serious environmental pollution. With the continuous increase of the energy demand of people, the problem of energy shortage restricting the economic development is increasingly exposed, and particularly the influence on the fields of energy intensive industry, transportation and the like is more obvious. Therefore, research and development of renewable energy sources are increasingly emphasized. The friction nano generator is widely focused on as a generating set capable of collecting micro mechanical energy and converting the micro mechanical energy into electric energy due to the characteristics of simplicity, high efficiency, reliability, environmental protection and the like. Compared with the traditional energy power generation mode, the friction nano power generation mode is low-carbon and pollution-free, does not generate waste gas, waste water and solid waste, is favorable for reducing negative influence on the environment, and is an environment-friendly power generation mode. The friction nano generator can convert friction energy into electric energy by utilizing friction energy sources in daily life, such as human body movement, mechanical movement and the like, which means that the friction nano generator is a power generation mode with renewable characteristics, can supply power to micro electric appliances, and effectively relieves the problem of tension of traditional energy sources. But it is difficult to achieve large-scale applications into the commercial field due to the low output power density of the friction nano-generator. Based on the technical characteristics of soft sponge contact in the friction nano generator, the invention effectively solves the problems of low output power density, large friction layer material loss and short service life of the common friction nano generator.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the sponge soft contact type friction nano generator based on 3D printing, and the technical characteristics of sponge soft contact in the friction nano generator effectively solve the technical defects of low output power density, large friction layer material loss, short service life and the like of the common friction nano generator, and realize stable output of output current and output voltage.
The invention adopts the following technical scheme to solve the technical problems, the sponge soft contact type friction nano generator based on 3D printing comprises a wind cup component and a friction generator mechanism which are connected and driven by a rotary rod roller mechanism, a front end cover and a rear end cover in the friction generator mechanism are connected and pressed tightly and fixed at two ends of a shell through a screw rod and a nut, the shell is fixedly arranged on a base, a plurality of axial grooves are uniformly distributed on the inner wall of the shell along the circumferential direction, an annular sponge substrate is sleeved and arranged on the inner wall of the shell, the rotary rod roller mechanism is internally arranged in the annular sponge substrate, the rotary rod roller mechanism consists of a rotary rod, a rotary base which is oppositely arranged at one end of the rotary rod and rotates along with the rotary rod, and a roller rotor which is hinged and fixed between the rotary base which is oppositely arranged and is in compression fit with the inner wall of the annular sponge substrate, the other end cover is connected and driven by a bearing component, a first friction unit and a second friction unit which has opposite friction charges are respectively arranged in the axial grooves at the outer side of the annular sponge substrate, the first friction unit comprises a back electrode adhered to the annular sponge substrate and a first friction layer adhered to the back electrode and a second friction layer which are adhered to the back electrode layer, the second friction unit is adhered to the back electrode layer, and the second friction unit is adhered to the annular sponge substrate, and the opposite to the opposite surface of the rotary rod is connected with the rotary rod roller base through the rotary rod, and the rotary rod is contacted with the rotary base, and the opposite surface of the rotary rod is contacted with the rotary rod is opposite axial layer, and the rotary rod is contacted with the rotary cup, and the rotary cup is contacted with the rotary cup, and the opposite electrode layer, electrons flow from one electrode to the other electrode through a load, so that the potentials of the first friction layer unit and the second friction layer unit which are contacted and separated from each other periodically change, and the electrons are driven to flow to an external circuit to generate alternating current.
Further limited, the material of the first friction layer is copper, aluminum or aluminum-copper alloy with any proportion, the thickness of the first friction layer is 50mm-1mm, the material of the second friction layer is polytetrafluoroethylene or nylon, and the thickness of the second friction layer is 50mm-1mm.
Further defined, the second friction layer is subjected to a high voltage polarization treatment to increase the second friction layer surface charge density.
Further defined, the back electrodes in the first friction layer unit and the second friction layer unit are made of one or an alloy of at least two materials selected from gold, silver, copper, platinum, iron or aluminum, and when the back electrodes in the first friction layer unit are made of the above metals or alloys, the back electrodes are used as the first friction layer at the same time.
Further limiting, selecting a groove structure model manufactured by using a 3D printing technology as a friction substrate, wherein the used material is a PLA material with strong hardness, and the size of each axial groove friction substrate is 15 mm' -80 mm; the wind cup assembly manufactured based on the 3D printing technology drives the roller rotor to extrude the attached friction unit on the annular sponge substrate to move up and down, the friction unit is driven to periodically contact and separate, the roller rotor, the rotary rod, the rotary base and the wind cup assembly are all made of PLA materials, and the annular sponge substrate is made of lignocellulose fibers.
According to the sponge soft contact type friction nano generator based on 3D printing, firstly, in the driving action of a wind cup component under any frequency condition, the extruded first friction layer and the extruded second friction layer can be synchronously contacted and separated with each other through the rotary rod roller mechanism, the first friction layer and the second friction layer are contacted and rubbed to generate electricity, the contact surfaces of the first friction layer and the second friction layer are respectively provided with surface charges with opposite signs, when the two contact surfaces are separated from each other under the action of sponge elastic force, an induced potential difference is formed between the two electrodes, the two electrodes are connected through a load, electrons can be processed and flow from one electrode to the other electrode through the load, and only the potential between the mutually separated first friction layer and second friction layer is periodically changed, so that the electrons are driven to flow to an external circuit to generate alternating current.
The beneficial effects of the invention are as follows: the technical characteristics of soft contact of the friction nano generator effectively solve the technical defects of high loss of the friction layer material, short service life and the like of the common friction nano generator.
The sponge soft contact type friction nano generator provided by the invention has the advantages that:
1. the sponge soft contact type friction nano generator based on 3D printing has the advantages of ingenious structure, low cost, durability, high output voltage and the like, meanwhile, the unique roller extrusion structure is different from simple rotation or contact separation, stable frequency can be effectively utilized to match contact separation, the stability of output current and output voltage of the friction nano generator is greatly improved, meanwhile, the sponge soft contact type friction nano generator based on 3D printing effectively utilizes space in structural design, and the space utilization rate of the friction nano generator is improved.
2. According to the invention, the power source of the sponge soft contact type friction nano generator based on 3D printing adopts the circular motion of the roller to extrude the annular sponge substrate into the axial groove, so that the friction layers are extruded and separated, various types of mechanical energy can be collected, and the application range of the friction nano generator is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a sponge soft contact type friction nano generator based on 3D printing;
fig. 2 is a schematic diagram of an assembly structure of a sponge soft contact type friction nano generator based on 3D printing;
fig. 3 is a schematic diagram of the internal structure of a sponge soft contact type friction nano generator shell based on 3D printing;
FIG. 4 is a short circuit current of a sponge soft contact friction nano generator based on 3D printing;
FIG. 5 is a voltage waveform plot for a sponge soft contact friction nano-generator based on 3D printing;
fig. 6 is a transfer charge amount of the sponge soft contact type friction nano-generator based on 3D printing.
In the figure: the novel wind cup comprises a 1-nut, a 2-front end cover, a 3-annular sponge substrate, a 4-bearing assembly, a 5-roller rotor, a 6-rotating base, a 7-rear end cover, an 8-screw, a 9-wind cup assembly, a 10-base, a 11-shell and a 12-axial groove.
Detailed Description
The above-described matters of the present invention will be described in further detail by way of examples, but it should not be construed that the scope of the above-described subject matter of the present invention is limited to the following examples, and all techniques realized based on the above-described matters of the present invention are within the scope of the present invention.
As shown in figures 1-3, the sponge soft contact type friction nano generator based on 3D printing comprises a wind cup component 9 and a friction generator mechanism which are connected and driven through a rotary rod roller mechanism, wherein a front end cover 2 and a rear end cover 7 in the friction generator mechanism are connected and pressed and fixed at two ends of a shell 11 through a screw rod 8 and a nut 1, the shell 11 is fixedly arranged on a base 10, a plurality of axial grooves 12 are uniformly distributed on the inner wall of the shell 11 along the circumferential direction, an annular sponge substrate 3 is sleeved and arranged on the inner wall of the shell 11, the rotary rod roller mechanism is arranged in the annular sponge substrate 3, the rotary rod roller mechanism consists of a rotary rod, a rotary base 6 which is oppositely arranged and fixed at one end of the rotary rod and rotates along with the rotary rod, and a roller rotor 5 which is hinged and fixed between the rotary bases 6 which are oppositely arranged and is in pressing fit with the inner wall of the annular sponge substrate 3, the other end of the rotary rod penetrates through the rear end cover 7 through the bearing component 4 to be connected with the wind cup component 9 for transmission, a first friction unit and a second friction unit with opposite friction charges are respectively arranged on the outer side of the annular sponge substrate 3 and the axial groove 12, wherein the first friction unit comprises a back electrode adhered on the annular sponge substrate 3 and a first friction layer adhered on the back electrode, the second friction layer comprises a back electrode adhered in the axial groove 12 and a second friction layer adhered above the back electrode, the wind cup component 9 drives the rotary rod to rotate, simultaneously the rotary base 6 and the roller rotor 5 connected on the rotary rod rotate along with the rotary rod and continuously squeeze the annular sponge substrate 3, the contact surfaces of the first friction layer unit and the second friction layer unit respectively have opposite surface charges, when the two contact surfaces are separated due to the elastic potential difference of the annular sponge substrate 3, induction is formed between the two electrodes, through the connection of the load to the electrodes, electrons flow from one electrode to the other electrode through the load, so that the potentials of the first friction layer unit and the second friction layer unit which are mutually contacted and separated periodically change, and the electrons are driven to flow to an external circuit to generate alternating current.
According to the sponge soft contact type friction nano generator based on 3D printing, mechanical energy which can be converted into circular motion in the surrounding environment is collected under the action of the wind cup component, the circular motion mechanical energy of the rotary rod is converted into the motion mechanical energy of the annular sponge substrate extruded by the rotary rod rotor through the rotary rod rotary cylinder mechanism, synchronous contact separation of the first friction layer and the second friction layer is achieved, friction static charges are generated, and the two friction layers have opposite charges with equal charge amounts. According to the invention, the first friction layer and the second friction layer can be simultaneously contacted or separated, and the second friction layer is subjected to charge pre-injection treatment, so that the roller extrusion contact separation type friction nano generator has higher and stable output characteristics and is superior to other similar friction nano generators in output performance.
In this embodiment, the first friction layer is made of aluminum, copper or copper-aluminum alloy with any proportion, the thickness of the first friction layer is 50 μm-1mm, the second friction layer is made of polytetrafluoroethylene or nylon, and the thickness of the second friction layer is 50 μm-1mm.
In this embodiment, the back electrodes in the first friction unit and the second friction unit are both made of gold, silver, platinum, iron, copper or an alloy of at least two materials with good conductivity, and when the back electrode in the first friction unit is made of the above metal or alloy, the back electrode is used as the first friction layer at the same time. The friction layer material and the size of the sponge soft contact type friction nano generator based on 3D printing are variable, the size of the friction conductive layer can be large or small, and the number of the friction conductive layers can be properly increased or decreased.
In this embodiment, the working principle of the sponge soft contact type friction nano generator based on 3D printing is as follows: firstly, under the action of external force of circular motion under any frequency condition, a rotary rod roller mechanism enables a roller rotor to extrude an annular sponge substrate to perform circular motion, the annular sponge substrate is promoted to be contacted and separated with an axial groove, a first friction layer attached to the surface of the annular sponge substrate and a second friction layer in the axial groove can be synchronously contacted and separated, a large amount of friction static charges are generated on the friction layer, and equal and opposite charges are generated on an electrode plate.
When the two electrode plates of the first friction unit and the second friction unit are directly connected by a wire, namely under a short circuit condition, when the charged friction layers are contacted or separated, electric charges flow to form current. When the two metal electrodes of the first friction unit and the second friction unit are not connected, namely under an open circuit condition, the electrode plates of the two friction layers are different in electric potential at a certain moment, and potential difference is formed. When a load is connected between the two electrodes, the compressive contact separation motion causes charge to constantly reciprocate between the two electrodes through the load, thereby powering the load.
A preferred scheme for manufacturing the roller press contact separation type friction nano generator according to the present embodiment is given below, but the manufacturing of the sponge soft contact type friction nano generator is not limited thereto.
The preferable technical scheme is as follows: selecting an axial groove manufactured by using an additive manufacturing technology based on 3D printing, wherein the axial groove has the size of 15mm multiplied by 80mm, and the annular sponge substrate has the size of 80mm multiplied by 314mm; the friction layer of the second friction unit is a polytetrafluoroethylene film, the friction layer of the first friction unit is Cu, the first friction layer and the electrode plates are both made of metal, the electrode plates can be directly used as friction layers, the size of the friction layers is consistent with that of the conductive layers, and the coverage degree is 100%.
According to the description of the working principle of the sponge soft contact type friction nano generator, the number of friction units of the sponge soft contact type friction nano generator manufactured according to the preferred scheme is 10, and friction layers of 10 first friction units are arranged in the axial grooves; and the electrode plates in the same friction units are connected in parallel by leads. When the wind cup component rotates, the maximum short-circuit current and the open-circuit voltage of the sponge soft contact friction nano generator based on 3D printing are 9.6mA and 112V, and the maximum transferred charge quantity reaches 83nC.
Therefore, the sponge soft contact type friction nano generator based on 3D printing has the advantages of simple structure, low cost, durability, high output voltage, high output current, stable output performance and the like, and meanwhile, the unique roller extrusion type annular sponge substrate and the axial grooves enable the number of friction layers of the friction generator to be conveniently changed, and the output performance to be adjusted. According to the sponge soft contact type friction nano generator based on 3D printing, two friction units are always contacted or separated at the same time, so that the movement rate is improved. In addition, the sponge soft contact type friction nano generator has low requirement on vibration frequency, and can convert energy of low-frequency vibration in nature into electric energy.
While the basic principles, principal features and advantages of the present invention have been described in the foregoing examples, it will be appreciated by those skilled in the art that the present invention is not limited by the foregoing examples, but is merely illustrative of the principles of the invention, and various changes and modifications can be made without departing from the scope of the invention, which is defined by the appended claims.
Claims (4)
1. A sponge soft contact friction nanometer generator based on 3D printing is characterized by comprising a wind cup component and a friction generator mechanism which are connected and driven through a rotary rod roller mechanism, wherein a front end cover and a rear end cover in the friction generator mechanism are connected and pressed tightly and fixed at two ends of a shell through a screw rod and a nut, the shell is fixedly arranged on a base, a plurality of axial grooves are uniformly distributed on the inner wall of the shell along the circumferential direction, an annular sponge substrate is sleeved and arranged on the inner wall of the shell, the rotary rod roller mechanism is arranged in the annular sponge substrate, the rotary rod roller mechanism consists of a rotary rod, a rotary base which is oppositely arranged and fixed at one end of the rotary rod and rotates along with the rotary rod, and a roller rotor which is hinged and fixed between the rotary bases which are oppositely arranged and is in compression fit with the inner wall of the annular sponge substrate, the other end of the rotary rod penetrates through the rear end cover through a bearing component and is connected and driven with the wind cup component, the outside of the annular sponge substrate and the axial groove are respectively provided with a first friction unit and a second friction unit with opposite friction charges, wherein the first friction unit comprises a back electrode adhered on the annular sponge substrate and a first friction layer adhered on the back electrode, the second friction layer comprises a back electrode adhered in the axial groove and a second friction layer adhered on the back electrode, the cup assembly drives the rotary rod to rotate, the rotary base and the rotary drum rotor connected on the rotary rod rotate along with the rotary rod and squeeze the annular sponge substrate, the contact surfaces of the first friction layer unit and the second friction layer unit respectively have opposite surface charges, when the two contact surfaces are separated due to the elastic action of the annular sponge substrate, an induction potential difference is formed between the two electrodes, the two electrodes are connected to the connecting electrodes through a load, and electrons flow from one electrode to the other electrode through the load, the electric potential of the first friction layer unit and the electric potential of the second friction layer unit which are contacted and separated are periodically changed, and drive electrons to flow to an external circuit to generate alternating current.
2. The 3D printing-based sponge soft contact type friction nano generator as set forth in claim 1, wherein: the first friction layer is made of copper, aluminum or aluminum-copper alloy in any proportion, the thickness of the first friction layer is 50-1 mm, the second friction layer is made of polytetrafluoroethylene or nylon, and the thickness of the second friction layer is 50-1 mm.
3. The 3D printing-based sponge soft contact type friction nano generator as set forth in claim 1, wherein: the second friction layer is subjected to high-voltage polarization treatment to improve the surface charge density of the second friction layer.
4. The 3D printing-based sponge soft contact type friction nano generator as set forth in claim 1, wherein: and the back electrodes in the first friction layer unit and the second friction layer unit are made of one or alloy of at least two materials selected from gold, silver, copper, platinum, iron and aluminum, and when the back electrodes in the first friction layer unit are made of the metal or alloy, the back electrodes are simultaneously used as the first friction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311671392.XA CN117674632A (en) | 2023-12-07 | 2023-12-07 | Sponge soft contact type friction nano generator based on 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311671392.XA CN117674632A (en) | 2023-12-07 | 2023-12-07 | Sponge soft contact type friction nano generator based on 3D printing |
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| Publication Number | Publication Date |
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| CN117674632A true CN117674632A (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311671392.XA Pending CN117674632A (en) | 2023-12-07 | 2023-12-07 | Sponge soft contact type friction nano generator based on 3D printing |
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| Country | Link |
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| CN (1) | CN117674632A (en) |
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- 2023-12-07 CN CN202311671392.XA patent/CN117674632A/en active Pending
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