CN113365175A - High-power super bass is basin frame for speaker - Google Patents
High-power super bass is basin frame for speaker Download PDFInfo
- Publication number
- CN113365175A CN113365175A CN202110714303.XA CN202110714303A CN113365175A CN 113365175 A CN113365175 A CN 113365175A CN 202110714303 A CN202110714303 A CN 202110714303A CN 113365175 A CN113365175 A CN 113365175A
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- China
- Prior art keywords
- frame
- basin frame
- rod
- transverse plate
- disc
- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Transmission Devices (AREA)
Abstract
A basin stand for a high-power ultra-low sound loudspeaker belongs to the basin stand field; comprises an outer basin frame with a groove and is characterized in that; the basin frame for the high-power ultra-low sound loudspeaker further comprises an inner basin frame and a fixing plate fixedly arranged on the inner basin frame, and a transverse plate is further arranged on the outer basin frame; the buffer assembly is arranged between the transverse plate and the fixing plate; the meshing structure is connected with the buffering assembly and is arranged on the transverse plate; the reciprocating mechanism is arranged on the transverse plate and is connected with the teeth and the mechanism; the switch assembly is connected with the reciprocating mechanism, is installed in the outer basin frame and is used for fixing the inner basin frame; the heat dissipation mechanism is installed in the outer basin frame and used for dissipating heat of the inner basin frame, the buffer assembly drives the reciprocating mechanism to move through the meshing structure and is matched with the switch assembly and fixes the basin frame.
Description
Technical Field
The invention belongs to the field of basin stands, and particularly relates to a basin stand for a high-power ultra-low-sound loudspeaker.
Background
The existing loudspeaker mainly utilizes a magnetic component to generate fixed magnetism and a loop magnetic field, when a voice coil of the loudspeaker is electrified, the voice coil can generate interaction with the magnetic field, so that the voice coil can vibrate forwards and backwards, and simultaneously, a vibrating membrane can synchronously move forwards and backwards along with the current of the voice coil so as to push air to generate sound; but after the voice coil loudspeaker voice coil is electrically conductive, in the use, most electric energy all can the loss produce heat energy for voice coil loudspeaker voice coil heat energy improves, and the magnetic line of force also can produce the heat in the motion process simultaneously, though can set up the louvre on the speaker basin frame, but only rely on natural radiating efficiency low, and the radiating effect is poor, can lead to the tone quality to take place the deviation.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a basin stand for a high-power ultra-low-sound loudspeaker.
The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a basin frame for high-power ultra-low sound speaker, is including seting up slotted outer basin frame, its characterized in that:
the basin frame for the high-power ultra-low sound loudspeaker further comprises an inner basin frame and a fixing plate fixedly arranged on the inner basin frame, and a transverse plate is further arranged on the outer basin frame;
the buffer assembly is arranged between the transverse plate and the fixing plate;
the meshing structure is connected with the buffering assembly and is arranged on the transverse plate;
the reciprocating mechanism is arranged on the transverse plate and is connected with the teeth and the mechanism;
the switch assembly is connected with the reciprocating mechanism, is installed in the outer basin frame and is used for fixing the inner basin frame;
and the heat dissipation mechanism is arranged in the outer basin frame and used for dissipating heat of the inner basin frame.
Preferably, the buffering assembly comprises a fixing rod fixedly mounted on the fixing plate, a telescopic rod fixedly mounted on the transverse plate and matched with the fixing rod, and a first spring sleeved on the telescopic rod, and the fixing rod is connected with the meshing structure.
Preferably, the engaging structure comprises a gear rotatably mounted on the transverse plate and a rack plate adapted to the gear and fixedly mounted on the fixing rod, and the gear is connected with the reciprocating mechanism;
preferably, the reciprocating mechanism comprises a first disc rotatably mounted on the transverse plate, a belt with one end connected with the first disc and the other end connected to the gear, and an elastic assembly connected to the first disc.
Preferably, the elastic assembly comprises a spring sleeve fixedly mounted on the first disc, a connecting rod penetrating through the spring sleeve and a second spring, one end of the second spring is fixed on the spring sleeve, the other end of the second spring is connected with the connecting rod, and the connecting rod is connected with the switch assembly.
Preferably, the switch assembly comprises a pulley fixedly mounted on the connecting rod, a movable block movably mounted in a groove formed in the outer basin frame, and a hinge rod hinged with the movable block.
Preferably, the heat dissipation mechanism comprises a second round disc which is rotatably arranged in the outer basin frame and provided with a protrusion, an inclined rod which is fixedly arranged in the outer basin frame and a rotating structure which is movably arranged on the second round disc, and the second round disc is electrically connected.
Preferably, the rotating structure comprises a movable rod which is matched with the protrusion and provided with a groove, and a fan which is fixedly arranged on the movable rod, the movable rod is hinged on the inclined rod, and the fan is electrically connected.
The invention has the following beneficial effects: when using, the fixed plate that will be connected with interior basin frame is arranged in on the basin frame outward, the work of buffering subassembly this moment, and drive the meshing structure and rotate, make reciprocating mechanism motion, and with the switch module adaptation, it is fixed with interior basin frame outward to put up, when needs unblock, the manpower drive switch module motion, and the unblock of drive reciprocating mechanism, under the effect of buffering subassembly, make interior basin frame and the separation of outer basin frame, after the speaker circular telegram, heat dissipation mechanism will work, thereby dispel the heat to the speaker.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a partial structural view of the heat dissipation mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the outer pot frame of the present invention;
in the figure: 1-outer basin frame, 2-inner basin frame, 3-fixed plate, 4-transverse plate, 5-fixed rod, 6-rack plate, 7-gear, 8-belt, 9-telescopic rod, 10-first spring, 11-first disk, 12-spring sleeve, 13-second spring, 14-connecting rod, 15-pulley, 16-movable block, 17-hinged rod, 18-second disk, 19-movable rod, 20-diagonal rod and 21-fan.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): a high-power ultra-low sound speaker frame, as shown in fig. 1-4, comprises an outer frame 1 with a groove, and is characterized in that:
the frame for the high-power ultra-low-sound loudspeaker further comprises an inner frame 2 and a fixing plate 3 fixedly arranged on the inner frame 2, and a transverse plate 4 is further arranged on the outer frame 1;
the buffer assembly is arranged between the transverse plate 4 and the fixed plate 3;
the meshing structure is connected with the buffering assembly and is arranged on the transverse plate 3;
the reciprocating mechanism is arranged on the transverse plate 3 and is connected with the teeth and the mechanism;
the switch assembly is connected with the reciprocating mechanism, is arranged in the outer basin frame 1 and is used for fixing the inner basin frame 2; and the heat dissipation mechanism is arranged in the outer basin frame 1 and used for dissipating heat of the inner basin frame 2.
In the embodiment of the invention, when the loudspeaker is used, the fixed plate 3 connected with the inner basin frame 2 is placed on the outer basin frame 1, the buffer assembly works at the moment and drives the meshing structure to rotate, so that the reciprocating mechanism moves and is matched with the switch assembly to fix the outer basin frame 1 and the inner basin frame 2, when the loudspeaker needs to be unlocked, the switch assembly is driven to move by manpower and drives the reciprocating mechanism to unlock, under the action of the buffer assembly, the inner basin frame 2 is separated from the outer basin frame 1, and after the loudspeaker is electrified, the heat dissipation mechanism works, so that the loudspeaker is dissipated heat.
The utility model provides an embodiment, the buffering subassembly includes fixed mounting be in dead lever 5 on the fixed plate 3 and fixed mounting be in on the diaphragm 4 and with the telescopic link 9 and the cover of dead lever 5 adaptation are established spring 10 on the telescopic link 9, dead lever 5 with the meshing structural connection.
In the embodiment of the invention, when the fixing rod 5 moves downwards in use, the first spring 10 is compressed, so that the telescopic rod 9 moves downwards, and the fixing rod 5 drives the meshing structure to move.
In one embodiment, the engaging structure comprises a gear 7 rotatably mounted on the transverse plate 4 and a rack plate 6 adapted to the gear 7 and fixedly mounted on the fixing rod 5, wherein the gear 7 is connected with the reciprocating mechanism.
In the embodiment of the invention, when the fixed rod 5 moves, the rack plate 6 is driven to move, so that the gear 7 meshed with the rack plate 6 rotates, and the reciprocating mechanism is driven to move.
In one embodiment, the reciprocating mechanism comprises a first disc 11 rotatably installed on the transverse plate 4, a belt 8 with one end connected with the first disc 11 and the other end connected to the gear 7, and an elastic component connected to the first disc 11.
In the embodiment of the invention, when the gear 7 rotates, the first disc 11 is driven to rotate through the belt 8, so that the elastic component is driven to move.
In one embodiment, the elastic assembly comprises a spring sleeve 12 fixedly mounted on the first disc 11, a connecting rod 14 penetrating through the spring sleeve 12, and a second spring 13 with one end fixed on the spring sleeve 12 and the other end connected with the connecting rod 14, wherein the connecting rod 14 is connected with the switch assembly.
In the embodiment of the invention, when the first disc 11 rotates, the spring sleeve 12 is driven to rotate, so that the switch component on the connecting rod 14 is contacted with the inner wall of the outer basin frame 1 and presses the second spring 13, and when the second spring moves to a position matched with the switch component, the inner basin frame 2 is fixed on the outer basin frame 1.
In one embodiment, the switch assembly comprises a pulley 15 fixedly mounted on the connecting rod 14, a movable block 16 movably mounted in a groove formed in the outer basin frame 1, and a hinge rod 17 hinged to the movable block 16.
In the embodiment of the invention, when the pulley 15 is in contact with the inner wall of the outer basin frame 1 in use, the double-gauge spring 13 is pressed, when the pulley 15 moves to the groove formed in the outer basin frame 1, the movable block 16 is driven to move, the hinge rod 17 is driven to rotate around the hinge point, the pulley 15 is clamped in the groove, when unlocking is required, the hinge rod 17 is driven to rotate by manpower, the movable block 16 is driven to move towards the inner basin frame 2, the pulley 15 is separated from the groove, and at the moment, the inner basin frame 2 is pushed out of the outer basin frame 1 under the action of the spring 10.
An embodiment, heat dissipation mechanism is including rotating the installation and just having bellied No. two discs 18 and fixed mounting in outer basin frame 1 down tube 20 and movable mounting in outer basin frame 1 is in the revolution mechanic on No. two discs 18, No. two discs 18 are electric connection.
In use, when the speaker is powered, the second disc 18 is powered and rotates, thereby moving the rotary structure.
In one embodiment, the rotating structure includes a movable rod 19 adapted to the protrusion and provided with a groove, and a fan 21 fixedly installed on the movable rod 19, the movable rod 19 is hinged on the inclined rod 20, and the fan 21 is electrically connected.
In the embodiment of the present invention, when the speaker is powered on, the fan 21 will rotate, the second disc 18 will rotate, and the movable rod 19 will rotate around the inclined rod 20, so as to drive the fan 21 to swing.
The principle of the invention is as follows: with interior basin frame 2 and 1 adaptation of outer basin frame, dead lever 5 downstream, thereby compress spring 10 and telescopic link 9, drive rack plate 6 motion, make gear 7 rotate, and drive disc 11 through belt 8 and rotate, thereby drive the motion of spring sleeve 12, pulley 15 on the connecting rod 14 this moment will be with the inner wall contact of outer basin frame 1, and compress spring 13 No. two, when pulley 15 and the groove adaptation on outer basin frame 1, drive the motion of movable block 16, and drive hinge bar 17 and rotate, interior basin frame 2 will be fixed in outer basin frame 1 this moment, after the speaker circular telegram, disc 18 No. two and fan 21 will circular telegram and rotate, movable rod 19 revolves around the pin joint rotation on the down tube 20 this moment, thereby drive the swing of fan 21.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (8)
1. The utility model provides a basin frame for high-power ultra-low sound speaker, is including seting up slotted outer basin frame (1), its characterized in that:
the frame for the high-power ultra-low-sound loudspeaker further comprises an inner frame (2) and a fixing plate (3) fixedly arranged on the inner frame (2), and a transverse plate (4) is further arranged on the outer frame (1);
the buffer assembly is arranged between the transverse plate (4) and the fixing plate (3);
the meshing structure is connected with the buffering assembly and is arranged on the transverse plate (3);
the reciprocating mechanism is arranged on the transverse plate (3) and is connected with the teeth and the mechanism;
the switch assembly is connected with the reciprocating mechanism, is installed in the outer basin frame (1) and is used for fixing the inner basin frame (2);
the heat dissipation mechanism is installed in the outer basin frame (1) and used for dissipating heat of the inner basin frame (2).
2. The frame for a high power subwoofer according to claim 1, wherein: the buffer assembly comprises a fixed rod (5) fixedly installed on the fixed plate (3) and a spring (10) fixedly installed on the transverse plate (4) and sleeved on the telescopic rod (9) matched with the fixed rod (5), and the fixed rod (5) is connected with the meshing structure.
3. The frame for a high power subwoofer according to claim 2, wherein: the meshing structure comprises a gear (7) rotatably installed on the transverse plate (4) and a rack plate (6) matched with and fixedly installed on the gear (7) and fixedly installed on the fixing rod (5), and the gear (7) is connected with the reciprocating mechanism.
4. The frame for a high power subwoofer according to claim 3, wherein: reciprocating mechanism is including rotating to be installed No. one disc (11) and one end on diaphragm (4) with No. one disc (11) are connected the other end and are connected belt (8) on gear (7) and are connected elastic component on No. one disc (11).
5. The frame for a high power subwoofer according to claim 4, wherein: the elastic component comprises a spring sleeve (12) fixedly mounted on the first disc (11), a connecting rod (14) penetrating through the spring sleeve (12) and a second spring (13) with one end fixed to the spring sleeve (12) and the other end connected with the connecting rod (14), and the connecting rod (14) is connected with the switch component.
6. The frame for a high power subwoofer according to claim 5, wherein: the switch assembly comprises a pulley (15) fixedly installed on the connecting rod (14), a movable block (16) movably installed in a groove formed in the outer basin frame (1), and a hinge rod (17) hinged with the movable block (16).
7. The frame for a high power subwoofer according to claim 1, wherein: the heat dissipation mechanism is installed including rotating in outer basin frame (1) and have bellied No. two discs (18) and fixed mounting down mast (20) and movable mounting in outer basin frame (1) on No. two rotating-structure on disc (18), No. two discs (18) are electric connection.
8. The frame for a high power subwoofer according to claim 7, wherein: the rotating structure comprises a movable rod (19) which is matched with the protrusion and provided with a groove, and a fan (21) which is fixedly installed on the movable rod (19), wherein the movable rod (19) is hinged on the inclined rod (20), and the fan (21) is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714303.XA CN113365175B (en) | 2021-06-26 | 2021-06-26 | High-power super bass is basin frame for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714303.XA CN113365175B (en) | 2021-06-26 | 2021-06-26 | High-power super bass is basin frame for speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113365175A true CN113365175A (en) | 2021-09-07 |
| CN113365175B CN113365175B (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110714303.XA Active CN113365175B (en) | 2021-06-26 | 2021-06-26 | High-power super bass is basin frame for speaker |
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| CN (1) | CN113365175B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208924494U (en) * | 2018-09-27 | 2019-05-31 | 浙江欧赛电子有限公司 | A kind of frame structure for loudspeaker |
| CN209234051U (en) * | 2018-12-27 | 2019-08-09 | 广州世韵电子科技有限公司 | A kind of novel high-power super woofer frame |
| CN209435382U (en) * | 2019-04-12 | 2019-09-24 | 常州亮声科技有限公司 | A kind of anti-loosening loudspeaker connection structure |
| CN209545787U (en) * | 2019-03-17 | 2019-10-25 | 中山市万华电子有限公司 | A kind of sound equipment installation frame suitable for more sizes |
| CN210609585U (en) * | 2019-12-31 | 2020-05-22 | 常州亮声科技有限公司 | Connection structure of loudspeaker |
| CN210899607U (en) * | 2020-04-27 | 2020-06-30 | 广州佩坊科技有限公司 | Flat diaphragm low-frequency loudspeaker |
| CN211047211U (en) * | 2020-03-16 | 2020-07-17 | 台郁电子(深圳)有限公司 | Vehicle loudspeaker with good waterproof effect |
| US10771892B1 (en) * | 2019-07-02 | 2020-09-08 | Teledyne Instruments, Inc. | Underwater subwoofer system |
| CN112004171A (en) * | 2020-08-31 | 2020-11-27 | 台州椒江中含乐器科技有限公司 | Liftable speaker convenient to installation is dismantled |
| CN212785825U (en) * | 2020-09-03 | 2021-03-23 | 苏州鹏杰模具制品有限公司 | Various audio amplifier basin frame of function |
| CN213028438U (en) * | 2020-09-18 | 2021-04-20 | 天津华伟精工电子有限公司 | Novel speaker basin frame of portable |
| WO2021104006A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic device |
-
2021
- 2021-06-26 CN CN202110714303.XA patent/CN113365175B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208924494U (en) * | 2018-09-27 | 2019-05-31 | 浙江欧赛电子有限公司 | A kind of frame structure for loudspeaker |
| CN209234051U (en) * | 2018-12-27 | 2019-08-09 | 广州世韵电子科技有限公司 | A kind of novel high-power super woofer frame |
| CN209545787U (en) * | 2019-03-17 | 2019-10-25 | 中山市万华电子有限公司 | A kind of sound equipment installation frame suitable for more sizes |
| CN209435382U (en) * | 2019-04-12 | 2019-09-24 | 常州亮声科技有限公司 | A kind of anti-loosening loudspeaker connection structure |
| US10771892B1 (en) * | 2019-07-02 | 2020-09-08 | Teledyne Instruments, Inc. | Underwater subwoofer system |
| WO2021104006A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic device |
| CN210609585U (en) * | 2019-12-31 | 2020-05-22 | 常州亮声科技有限公司 | Connection structure of loudspeaker |
| CN211047211U (en) * | 2020-03-16 | 2020-07-17 | 台郁电子(深圳)有限公司 | Vehicle loudspeaker with good waterproof effect |
| CN210899607U (en) * | 2020-04-27 | 2020-06-30 | 广州佩坊科技有限公司 | Flat diaphragm low-frequency loudspeaker |
| CN112004171A (en) * | 2020-08-31 | 2020-11-27 | 台州椒江中含乐器科技有限公司 | Liftable speaker convenient to installation is dismantled |
| CN212785825U (en) * | 2020-09-03 | 2021-03-23 | 苏州鹏杰模具制品有限公司 | Various audio amplifier basin frame of function |
| CN213028438U (en) * | 2020-09-18 | 2021-04-20 | 天津华伟精工电子有限公司 | Novel speaker basin frame of portable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113365175B (en) | 2022-09-20 |
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