CN213028987U - Dustproof sheet metal cabinet with heat dissipation plate - Google Patents

Dustproof sheet metal cabinet with heat dissipation plate Download PDF

Info

Publication number
CN213028987U
CN213028987U CN202021552759.8U CN202021552759U CN213028987U CN 213028987 U CN213028987 U CN 213028987U CN 202021552759 U CN202021552759 U CN 202021552759U CN 213028987 U CN213028987 U CN 213028987U
Authority
CN
China
Prior art keywords
cabinet body
cabinet
heat dissipation
plate
dustproof
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
Application number
CN202021552759.8U
Other languages
Chinese (zh)
Inventor
杨再兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Yuanye Sheet Metal Manufacturing Co ltd
Original Assignee
Suzhou Yuanye Sheet Metal Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Yuanye Sheet Metal Manufacturing Co ltd filed Critical Suzhou Yuanye Sheet Metal Manufacturing Co ltd
Priority to CN202021552759.8U priority Critical patent/CN213028987U/en
Application granted granted Critical
Publication of CN213028987U publication Critical patent/CN213028987U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a dustproof sheet metal cabinet with a heat dissipation plate, which comprises a cabinet body, a heat dissipation structure and a dustproof structure; the cabinet body: the bottom surface of the cabinet body is provided with a bottom plate, the left side of the front side surface of the cabinet body is provided with a PLC (programmable logic controller), an opening of the front side surface of the cabinet body is hinged with a cabinet door through a hinge, the top of the left side surface of the cabinet body is provided with a first supporting plate, the middle part of the upper surface of the first supporting plate is provided with a motor supporting block, the top of the motor supporting block is provided with a double-shaft motor, the bottom of the left side surface of the cabinet body is provided with a collecting box, the bottom; the heat dissipation structure comprises: the right side is arranged in the cabinet body; the dustproof structure is as follows: the groove is arranged on the left side wall of the cabinet body; wherein: still include angle sensor, external power source is connected to the input electricity of PLC controller, and this take dustproof panel beating rack of heating panel can carry out the heat dissipation to placing the original paper and handle, can also clear up the dust of collecting and scraping up in the filter plate outside, the management of being convenient for.

Description

Dustproof sheet metal cabinet with heat dissipation plate
Technical Field
The utility model relates to a dustproof technical field of heat dissipation specifically is a take dustproof panel beating rack of heating panel.
Background
The sheet metal cabinet made of sheet metal not only can provide space for power supply, motherboard, various expansion board cards, floppy disk drive, CD drive, hard disk drive and other storage devices, but also its solid shell has the functions of preventing pressure, protecting against shock, preventing dust, and resisting electromagnetic interference and radiation, and plays the role of shielding electromagnetic radiation, however, because the heat emitted by the original placed in the sheet metal cabinet in high operation state can not be satisfied only by the through hole of the outer side wall of the sheet metal cabinet, so that various heat-radiating devices are produced, the original dustproof filter plate is clamped outside the cabinet body, the adsorbed dust is detached when cleaning, and it is very troublesome, some heat-radiating devices only can cool the placed original through wind, the effect is not superior, so we propose a dustproof sheet metal cabinet with a heat dissipation plate.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a take dustproof panel beating rack of heating panel, can carry out the heat dissipation to placing the original paper and handle, can also clear up the dust of collecting together outside the filter plate, alleviate staff's burden, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a dustproof sheet metal cabinet with a heat dissipation plate comprises a cabinet body, a heat dissipation structure and a dustproof structure;
the cabinet body: the bottom surface of the cabinet body is provided with a bottom plate, the left side of the front side surface of the cabinet body is provided with a PLC (programmable logic controller), an opening of the front side surface of the cabinet body is hinged with a cabinet door through a hinge, the top of the left side surface of the cabinet body is provided with a first supporting plate, the middle part of the upper surface of the first supporting plate is provided with a motor supporting block, the top of the motor supporting block is provided with a double-shaft motor, the bottom of the left side surface of the cabinet body is provided with a collecting box, the bottom of the right side surface of the cabinet body is provided with a second supporting plate, the upper surface of the second supporting plate is provided with a water;
the heat dissipation structure comprises: the right side is arranged in the cabinet body;
the dustproof structure is as follows: the groove is arranged on the left side wall of the cabinet body;
wherein: still include angle sensor, the upper surface front side of backup pad one is equipped with the sensor support frame, the top of sensor support frame is equipped with angle sensor, angle sensor's output shaft rear end and double-shaft motor's front side output shaft end fixed connection, the input of PLC controller is connected to angle sensor's output electricity, the output of PLC controller is connected to double-shaft motor's input electricity, external power source is connected to the input electricity of PLC controller, can carry out the heat dissipation to placing the original paper and handle, can also clear up the dust of collecting in the filter plate outside, reduce staff's burden, the management of being convenient for.
Further, heat radiation structure includes coiled pipe, fan and heating panel, all be equipped with the fan in the mounting hole that cabinet body right side wall longitudinal symmetry set up, the air outlet department of fan is equipped with the coiled pipe, the mouth of pipe of inlet tube links to each other with the water inlet of coiled pipe, the delivery port of coiled pipe links to each other with the mouth of pipe of outlet pipe, the inside of the cabinet body is equipped with the heating panel, the right side wall of heating panel is equipped with evenly distributed's recess, the inside through-hole that is equipped with evenly distributed of recess, the output of PLC controller is connected to the input electricity of fan, be of value to placing the original paper and dispel.
Further, dustproof construction includes dust removal brush, axis of rotation, conveyer belt, filter plate and adjusting bolt, the inside of the cabinet body is connected with the axis of rotation through the bearing upper and lower symmetrical rotation, side end fixed connection before the axis of rotation of rear side output shaft end of biax motor and upper end, the conveyer belt transmission is passed through to two axes of rotation, the left surface top of conveyer belt is equipped with the dust removal brush, filter plate has been put in the mounting groove of cabinet body left side wall, filter plate passes through adjusting bolt and the left side wall threaded connection of the cabinet body, be of value to prevent that outside dust from getting into the internal portion of cabinet, and be convenient for remove dust.
Further, still include temperature sensor, the roof middle part of the cabinet body is equipped with temperature sensor, and PLC controller's input is connected to temperature sensor's output electricity, can detect the temperature that the internal portion of cabinet placed the original paper, the management and control of being convenient for.
Furthermore, the device also comprises bottom plate supporting blocks, wherein the bottom plate supporting blocks are uniformly distributed on the periphery of the bottom surface of the bottom plate, so that the device is convenient to disassemble and transport.
Compared with the prior art, the beneficial effects of the utility model are that: this take dustproof panel beating rack of heating panel has following benefit:
1. when placing the original paper and rising to the uniform temperature, through the regulation and control of PLC controller, water pump and fan begin the operation, and the water pump supplies the coiled pipe with outside cold water in, later the coiled pipe cooling, and to its surrounding air cooling heat absorption simultaneously, the fan blows to the heating panel with wind around the coiled pipe, and the hole of heating panel right flank and each contact surface of recess are to placing the original paper and dispel the heat, through with the contact of cold air large tracts of land and then realize the heat dissipation cooling to preventing the original paper.
2. When the heat dissipation is finished, the pressure inside the cabinet body may be slightly higher than the external pressure, dust in the external air can easily enter the cabinet body from the left side of the cabinet body, the filter screen plate can filter the dust at the moment, the dust can be effectively prevented from entering the cabinet body, the environment inside the cabinet body is prevented from being influenced, when the dust on the filter screen plate is accumulated to a certain degree, the heat dissipation of the cabinet body can be influenced, the double-shaft motor can be controlled by the PLC controller to rotate anticlockwise to drive the rotating shaft and the conveyor belt to rotate anticlockwise so as to enable the dust removing brush to move downwards and further clear the dust on the filter screen plate, when the double-shaft motor rotates to a certain angle, the double-shaft motor rotates clockwise to drive the dust removing brush to move upwards and return to the original position through the control of the PLC controller, the further cleaning of the filter screen plate is realized, and the cleaned dust falls into the collecting, the cleaning personnel can directly clean the collecting box, thereby being beneficial to dust prevention and cleaning the accumulated dust and reducing the burden of the working personnel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the structure of the present invention;
FIG. 3 is a schematic sectional view of the inside of the structure of the present invention;
FIG. 4 is an enlarged schematic view of the structure A of the present invention;
fig. 5 is an enlarged schematic view of the structure B of the present invention.
In the figure: the device comprises a base plate 1, a PLC 2, a cabinet 3, a heat dissipation structure 4, a coiled pipe 41, a fan 42, a heat dissipation plate 43, a water pump 5, a dustproof structure 6, a dust removal brush 61, a rotating shaft 62, a conveyor belt 63, a filter screen plate 64, an adjusting bolt 65, a double-shaft motor 7, an angle sensor 8, a support plate I9, a water outlet pipe 10, a cabinet door 11, a support plate II 12, a temperature sensor 13, a collection box 14 and a base plate supporting block 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a dustproof sheet metal cabinet with a heat dissipation plate comprises a cabinet body 3, a heat dissipation structure 4 and a dustproof structure 6;
the cabinet body 3: the bottom surface of the cabinet is provided with a bottom plate 1, the left side of the front side surface of a cabinet body 3 is provided with a PLC (programmable logic controller) 2, an opening of the front side surface of the cabinet body 3 is hinged with a cabinet door 11 through a hinge, the top of the left side surface of the front side surface of the cabinet body 3 is provided with a first supporting plate 9, the middle part of the upper surface of the first supporting plate 9 is provided with a motor supporting block, the top of the motor supporting block is provided with a double-shaft motor 7, the bottom of the left side surface of the cabinet body 3 is provided with a collecting box 14, the bottom of the right side surface of the cabinet body 3 is provided with a second supporting plate 12, the upper surface of the second supporting plate 12 is provided with a water pump 5;
and (4) a heat dissipation structure: the heat dissipation structure 4 comprises a coil pipe 41, a fan 42 and a heat dissipation plate 43, the fan 42 is arranged in the mounting holes symmetrically arranged on the upper and lower sides of the right side wall of the cabinet body 3, the coil pipe 41 is arranged at the air outlet of the fan 42, the pipe orifice of the water inlet pipe is connected with the water inlet of the coil pipe 41, the water outlet of the coil pipe 41 is connected with the pipe orifice of the water outlet pipe 10, the heat dissipation plate 43 is arranged in the cabinet body 3, the right side wall of the heat dissipation plate 43 is provided with uniformly distributed grooves, the grooves are internally provided with uniformly distributed through holes, the water pump 5 and the fan 42 start to operate, the water pump 5 supplies external cold water into the coil pipe 41, and then the, meanwhile, the air around the coil pipe 41 is cooled and absorbed, the fan 42 blows the wind around the coil pipe 41 to the heat dissipation plate 43, the contact surfaces of the hole on the right side surface of the heat dissipation plate 43 and the groove dissipate heat of the placed original, and the original is prevented from being dissipated and cooled by large-area contact with cold air;
the dustproof structure 6: the dust-proof structure 6 comprises a dust-removing brush 61, a rotating shaft 62, a conveyor belt 63, a filter screen plate 64 and an adjusting bolt 65, the inside of the cabinet 3 is connected with the rotating shaft 62 through a bearing in a vertically symmetrical manner, the rear output shaft end of the double-shaft motor 7 is fixedly connected with the front end of the rotating shaft 62 at the upper end, the two rotating shafts 62 are driven by the conveyor belt 63, the dust-removing brush 61 is arranged at the top of the left side surface of the conveyor belt 63, the filter screen plate 64 is placed in an installation groove at the left side wall of the cabinet 3, the filter screen plate 64 is in threaded connection with the left side wall of the cabinet 3 through the adjusting bolt 65, after heat dissipation is completed, the pressure inside the cabinet 3 is slightly higher than the external pressure, dust in the external air can easily enter the cabinet 3 from the left side of the cabinet 3, the filter screen plate 64 can filter the dust at the moment, the influence on the environment inside the cabinet body 3 is prevented, when the dust on the filter screen plate 64 is accumulated to a certain degree, the heat dissipation of the cabinet body 3 is influenced, the double-shaft motor 7 can rotate anticlockwise to drive the rotating shaft 62 and the conveyor belt 63 to rotate anticlockwise through the regulation and control of the PLC controller 2, so that the dust removing brush 61 moves downwards to remove the dust on the filter screen plate 64, when the double-shaft motor 7 rotates to a certain angle, the double-shaft motor 7 rotates clockwise through the regulation and control of the PLC controller 2 to drive the dust removing brush 61 to move upwards and return to the original position, the further cleaning of the filter screen plate 64 is realized, the dust prevention and the accumulated dust removal are facilitated, and the burden of workers is reduced;
wherein: still include angle sensor 8, the upper surface front side of backup pad 9 is equipped with the sensor support frame, the top of sensor support frame is equipped with angle sensor 8, end and the front side output shaft end fixed connection of double-shaft motor 7 behind angle sensor 8's the output shaft, PLC controller 2's input is connected to angle sensor 8's output electricity, PLC controller 2's output is connected to double-shaft motor 7's input electricity, external power source is connected to PLC controller 2's input electricity, PLC controller 2's output is connected to fan 42's input electricity.
Wherein: still include temperature sensor 13, the roof middle part of the cabinet body 3 is equipped with temperature sensor 13, and PLC controller 2's input is connected to temperature sensor 13's output electricity, can detect the temperature of the cabinet body 3 insides, the management and control of being convenient for.
Wherein: still include bottom plate supporting shoe 15, evenly distributed has bottom plate supporting shoe 15 around the bottom surface of bottom plate 1, is convenient for transport and dismantlement.
When in use: the bottom plate 1 and the cabinet body 3 are conveyed to a working area, the device is enabled to present a certain height through the bottom plate supporting block 15, the device is convenient to carry and disassemble, then the cabinet door 11 is opened, a placed original is placed in the cabinet body 3, the right side face of the placed original is enabled to be tightly attached to the left side face of the heat dissipation plate 43, the temperature sensor 13 monitors the temperature change of the placed original in real time, when the placed original is heated to a certain temperature, the temperature sensor 13 transmits a signal to the PLC controller 2 for analysis, the water pump 5 supplies external cold water into the coiled pipe 41 through the regulation and control of the PLC controller 2, then the coiled pipe 41 cools down and absorbs heat for the surrounding air, the fan 42 blows the wind around the coiled pipe 41 to the heat dissipation plate 43, the holes on the right side face of the heat dissipation plate 43 and the contact faces of the placed original are used for heat dissipation, and the heat dissipation and cooling, then, air flows out of the cabinet 3 from the through holes of the filter screen plate 64 on the left side of the cabinet 3, after heat dissipation is finished, the pressure inside the cabinet 3 may be slightly higher than the external pressure, dust in the external air easily enters the cabinet 3 from the left side of the cabinet 3, at the moment, the filter screen plate 64 can filter the dust, the dust can be effectively prevented from entering the cabinet 3, the environment inside the cabinet 3 is prevented from being influenced, when the dust on the filter screen plate 64 is accumulated to a certain degree, the heat dissipation of the cabinet 3 can be influenced, the double-shaft motor 7 can rotate anticlockwise through the regulation and control of the PLC controller 2, the rotating shaft 62 and the conveying belt 63 are driven to rotate anticlockwise, the dust removing brush 61 moves downwards, so that the dust on the filter screen plate 64 is removed, the rotation condition of the double-shaft motor 7 is monitored by the angle sensor 8 in real time, after the double, angle sensor 8 passes to PLC controller 2 with information and carries out the analysis, and through the regulation and control of PLC controller 2, double-shaft motor 7 clockwise rotates, drives dust removal brush 61 and moves up and returns the normal position, has realized collecting box 14 to the further clearance of filter plate 64, and the dust of clearance falls into because the action of gravity, and the box 14 is collected in the direct clearance of sanitizer, reduces sanitizer's work load.
It is to be noted that the specific model of the PLC controller 2 disclosed in this embodiment is siemens S7-400, the water pump 5 is a product of the science and technology limited by the pump industry of changshandupu, the water pump is TL-B09-a12-0601, the dual-axis motor 7 is a product of cheng motor limited in dongguan city, the dual-output-shaft decelerating motor is 4058GW, the angle sensor 8 is a product of the crystal electronics limited in shanghai river, the angle sensor is WDS15, the temperature sensor 13 is a product of the platinum electrical science and technology limited in shenzhen city, and the temperature sensor is BD-NTC-a-03, and the PLC controller 2 controls the water pump 5, the dual-axis motor 7, the angle sensor 8 and the temperature sensor 13 to operate by a method commonly used in the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a take dustproof panel beating rack of heating panel which characterized in that: comprises a cabinet body (3), a heat dissipation structure (4) and a dustproof structure (6);
cabinet (3): the water-saving cabinet is characterized in that a bottom plate (1) is arranged on the bottom surface of the water-saving cabinet, a PLC (programmable logic controller) (2) is arranged on the left side of the front side of a cabinet body (3), a cabinet door (11) is hinged to an opening of the front side of the cabinet body (3) through a hinge, a first supporting plate (9) is arranged at the top of the left side of the front side of the cabinet body (3), a motor supporting block is arranged in the middle of the upper surface of the first supporting plate (9), a double-shaft motor (7) is arranged at the top of the motor supporting block, a collecting box (14) is arranged at the bottom of the left side surface of the cabinet body (3), a second supporting plate (12) is arranged at the bottom of the right side surface of the cabinet body (3), a water pump (5) is arranged on the upper surface of the second supporting plate (12;
heat dissipation structure (4): is arranged at the right side in the cabinet body (3);
dust-proof structure (6): is arranged in a groove on the left side wall of the cabinet body (3);
wherein: still include angle sensor (8), the upper surface front side of backup pad (9) is equipped with the sensor support frame, and the top of sensor support frame is equipped with angle sensor (8), and the front side output shaft end fixed connection of the output shaft rear end of angle sensor (8) and double-shaft motor (7), the input of PLC controller (2) is connected to the output electricity of angle sensor (8), and the output of PLC controller (2) is connected to the input electricity of double-shaft motor (7), and external power source is connected to the input electricity of PLC controller (2).
2. The dustproof sheet metal cabinet with the heat dissipation plate as recited in claim 1, wherein: heat radiation structure (4) are including coiled pipe (41), fan (42) and heating panel (43), all be equipped with fan (42) in the mounting hole that the cabinet body (3) right side wall longitudinal symmetry set up, the air outlet department of fan (42) is equipped with coiled pipe (41), the mouth of pipe of inlet tube links to each other with the water inlet of coiled pipe (41), the delivery port of coiled pipe (41) links to each other with the mouth of pipe of outlet pipe (10), the inside of the cabinet body (3) is equipped with heating panel (43), the right side wall of heating panel (43) is equipped with evenly distributed's recess, the inside through-hole that is equipped with evenly distributed of recess, the output of PLC controller (2) is connected to the input electricity of fan (42).
3. The dustproof sheet metal cabinet with the heat dissipation plate as recited in claim 1, wherein: dustproof construction (6) are including dust removal brush (61), axis of rotation (62), conveyer belt (63), filter plate (64) and adjusting bolt (65), the inside of the cabinet body (3) is passed through the bearing and is connected with axis of rotation (62) from top to bottom the symmetry rotation, the front end fixed connection of axis of rotation (62) of rear side output shaft end and upper end of double-shaft motor (7), two axis of rotation (62) are through conveyer belt (63) transmission, the left surface top of conveyer belt (63) is equipped with dust removal brush (61), filter plate (64) have been put in the mounting groove of the cabinet body (3) left side wall, filter plate (64) are through adjusting bolt (65) and the left side wall threaded connection of the cabinet body (3).
4. The dustproof sheet metal cabinet with the heat dissipation plate as recited in claim 1, wherein: still include temperature sensor (13), the roof middle part of the cabinet body (3) is equipped with temperature sensor (13), and the input of PLC controller (2) is connected to the output electricity of temperature sensor (13).
5. The dustproof sheet metal cabinet with the heat dissipation plate as recited in claim 1, wherein: the novel bottom plate is characterized by further comprising bottom plate supporting blocks (15), wherein the bottom plate supporting blocks (15) are uniformly distributed on the periphery of the bottom surface of the bottom plate (1).
CN202021552759.8U 2020-07-31 2020-07-31 Dustproof sheet metal cabinet with heat dissipation plate Active CN213028987U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021552759.8U CN213028987U (en) 2020-07-31 2020-07-31 Dustproof sheet metal cabinet with heat dissipation plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021552759.8U CN213028987U (en) 2020-07-31 2020-07-31 Dustproof sheet metal cabinet with heat dissipation plate

Publications (1)

Publication Number Publication Date
CN213028987U true CN213028987U (en) 2021-04-20

Family

ID=75460911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021552759.8U Active CN213028987U (en) 2020-07-31 2020-07-31 Dustproof sheet metal cabinet with heat dissipation plate

Country Status (1)

Country Link
CN (1) CN213028987U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113286471A (en) * 2021-07-13 2021-08-20 徐州科亚机电有限公司 Electric vehicle controller with dustproof heat dissipation function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113286471A (en) * 2021-07-13 2021-08-20 徐州科亚机电有限公司 Electric vehicle controller with dustproof heat dissipation function

Similar Documents

Publication Publication Date Title
CN217215639U (en) Switch board with monitoring heat dissipation function
CN213028987U (en) Dustproof sheet metal cabinet with heat dissipation plate
CN113961055A (en) Computer heat radiation structure
CN109661136B (en) Cabinet is placed to computer with remove cooling dust removal function
CN113329151A (en) Artificial intelligence monitoring instrument for manufacturing workshop and monitoring method thereof
CN211454516U (en) Computer hardware overheat protection device
CN211128825U (en) Computer temperature control device
CN211297243U (en) Electrical installation self-rotation type dust suction equipment
CN210038627U (en) Dustproof computer case
CN209802405U (en) Computer lab power environment monitoring device based on thing networking
CN216391749U (en) Computer network rack of multiplicable radiating effect
CN213028853U (en) A thing networking switch for information regulation and control
CN219735724U (en) Energy-saving structure of refrigeration equipment
CN214281918U (en) Heat dissipation rack
CN217884306U (en) Building energy-saving control module
CN219536715U (en) Mechanical equipment work heat abstractor
CN213624896U (en) Lining cloth production is with bonder that has safeguard function
CN219697077U (en) UPS power supply protective housing
CN219418104U (en) Heat dissipation air inlet filter device for computer host
CN215526596U (en) Auxiliary heat dissipation equipment for computer host
CN209964500U (en) Dustproof heat abstractor of electrical control box
CN216626413U (en) Automatically controlled equipment heat radiation structure is used in mechanical automation processing
CN212905049U (en) Wisdom safety power consumption monitoring device based on thing networking
CN210928419U (en) Communication data information processing equipment with dustproof construction
CN218648372U (en) Dehumidification cooling structure and power cabinet

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant