CN116221368A - Sealing dustproof cover plate for automobile gearbox - Google Patents
Sealing dustproof cover plate for automobile gearbox Download PDFInfo
- Publication number
- CN116221368A CN116221368A CN202310175647.7A CN202310175647A CN116221368A CN 116221368 A CN116221368 A CN 116221368A CN 202310175647 A CN202310175647 A CN 202310175647A CN 116221368 A CN116221368 A CN 116221368A
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- CN
- China
- Prior art keywords
- plate layer
- condensing
- condensing coil
- layer
- cover plate
- 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.)
- Pending
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Classifications
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0419—Thermal insulations
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Tents Or Canopies (AREA)
Abstract
The invention discloses a sealing dustproof cover plate for an automobile gearbox, which comprises a cover plate main body and a liquid cooling system, wherein the liquid cooling system is arranged in the cover plate main body, the cover plate main body comprises an outer plate layer, an inner plate layer and a connecting enclosure, a vacuum heat insulation layer is arranged between the outer rings of the outer plate layer and the inner plate layer and respectively connected with the connecting enclosure, the liquid cooling system comprises a condensing coil and a condensing liquid inlet valve, the inner space of the condensing coil is directly contacted with the inner side surface of the inner plate layer, the condensing liquid inlet valve is arranged at the position, close to a feed inlet of the condensing coil, in the vacuum heat insulation layer, the condensing liquid inlet valve comprises a guide shell, a heat conducting column, a fixing column, an outer sleeve and a driven plug-in unit, the driven plug-in unit is rotatably arranged in the fixing column, and tin-bismuth alloy with the melting point of 100 ℃ is poured in the fixing column.
Description
Technical Field
The invention relates to the technical field of automobile gearbox accessories, in particular to a sealing dustproof cover plate for an automobile gearbox.
Background
An automobile gearbox is a set of speed changing devices for coordinating the rotating speed of an engine with the actual running speed of wheels and is used for exerting the best performance of the engine. The gear change can produce different gear ratios between the engine and the wheels during the driving of the vehicle, and the engine can be operated in its optimum power performance state by shifting gears.
After the transmission gear of the automobile gearbox is installed, a cover plate is required to be installed to seal the automobile gearbox finally, so that the effect of sealing and dust prevention is achieved. The existing sealing dustproof cover plate for the automobile gearbox has a certain heat and sound insulation function, but if the dustproof cover plate has a good heat insulation effect, heat in the gearbox is difficult to dissipate through the cover plate, and the temperature in the gearbox is too high to cause damage; if the dustproof cover plate has poor heat insulation capability, a large amount of time is required to be consumed for heating the vehicle to finish when the vehicle is started, meanwhile, the internal temperature of the gearbox is also rapidly reduced when the vehicle is idling, so that the driving oil consumption is increased, more carbon deposition is generated, and the service life of the gearbox is shortened.
Disclosure of Invention
In order to solve the problems mentioned in the background art, the invention provides a sealing dustproof cover plate for an automobile gearbox.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the sealing dustproof cover plate for the automobile gearbox comprises a cover plate main body and a liquid cooling system, wherein the liquid cooling system is arranged inside the cover plate main body, the cover plate main body comprises an outer plate layer, an inner plate layer and a connecting enclosure, and a vacuum heat insulation layer is arranged between the outer ring of the outer plate layer and the outer ring of the inner plate layer and between the outer ring of the inner plate layer and the connecting enclosure respectively;
the liquid cooling system comprises a condensing coil and a condensing liquid inlet valve, wherein the inner space of the condensing coil is directly contacted with the inner side surface of the inner plate layer, the condensing liquid inlet valve is arranged at a position, close to a feeding hole of the condensing coil, in the vacuum heat insulation layer, the condensing liquid inlet valve comprises a guide shell, a heat conduction column, a fixed column, an outer sleeve and a driven plug-in unit, the driven plug-in unit is rotatably arranged in the fixed column, and tin-bismuth alloy with the melting point of 100 ℃ is poured into the fixed column.
Preferably, the outer plate layer and the connecting enclosure are made of heat-insulating hard materials, and the inner plate layer is made of heat-conducting hard materials.
Preferably, the condenser coil is sinuously wound around the inside surface of the inner deck, the condenser coil not being in contact with the outer deck.
Preferably, the upper end of the condensing coil extends out of the connecting enclosure to form a feed inlet, the lower end of the condensing coil is communicated with a discharge pipe, and the diameter of the discharge pipe is smaller than that of the condensing coil.
Preferably, the diversion shell is fixedly arranged on the inner side surface of the inner plate layer but is not contacted with the outer plate layer, and a cylindrical diversion cavity is arranged in the diversion shell and is communicated with the condensing coil.
Preferably, one end of the heat conduction column is inserted into the flow guiding cavity, one end of the heat conduction column penetrates through the inner plate layer and the soundproof cotton layer and extends out, the outer sleeve is coaxially arranged outside the fixed column, a plurality of liquid pushing plates are symmetrically arranged on the outer circumference of the outer sleeve, and the liquid pushing plates are closely attached to the inner wall of the flow guiding cavity.
Compared with the prior art, the invention has the beneficial effects that:
1. the vacuum heat insulation layer is arranged between the outer plate layer and the inner plate layer, heat in the automobile gearbox after installation is blocked by the vacuum heat insulation layer and is difficult to be emitted from the inner plate layer to the outer plate layer, so that the sealing dustproof cover plate has good heat insulation performance, the time for starting a hot car by a cold car can be shortened, the oil consumption is reduced, and carbon deposition caused by idling is reduced.
2. The condensing coil capable of exchanging heat with the inner plate layer is arranged in the vacuum heat insulating layer, cooling liquid can be filled in the condensing coil, and the cooling liquid can take away the heat of the inner plate layer so as to timely take away the heat in the gearbox when the internal temperature of the gearbox is too high, and prevent the gearbox from being overheated and damaged.
3. The condensing coil controls liquid to enter and exit through the condensing liquid inlet valve, the condensing liquid inlet valve controls the operation of the condensing coil through the tin-bismuth alloy filled in the condensing coil, and the condensing coil utilizes the physical property of the tin-bismuth alloy to perform feedback regulation and control, so that the condensing coil has a simple structure and is convenient and easy to operate.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the back structure of a sealing dust cover plate for an automobile gearbox;
FIG. 2 is a cross-sectional view of a sealing dust cover plate for an automotive transmission according to the present invention taken along line A-A;
FIG. 3 is a cross-sectional view of the interior of a sealing dust cover plate for an automotive transmission according to the present invention;
FIG. 4 is a cross-sectional view of the internal structure of the condensing feed valve according to the present invention;
FIG. 5 is a perspective side sectional view of the condensing feed valve of the present invention without being filled with tin-bismuth alloy;
fig. 6 is a side cross-sectional view of a condensing feed valve of the present invention after filling with a tin-bismuth alloy.
In the figure: 1. a cover plate main body; 101. a vacuum heat insulating layer; 11. an outer ply; 12. an inner plate layer; 13. connecting the enclosure; 14. a seal ring; 15. a soundproof cotton layer; 2. a liquid cooling system; 201. a diversion cavity; 202. a wrapping cavity; 21. a condensing coil; 22. condensing liquid inlet valve; 23. a discharge pipe; 221. a diversion shell; 222. a heat conducting column; 223. fixing the column; 224. an outer sleeve; 225. a driven insert; 226. a liquid pushing plate; 227. tin bismuth alloy.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, a sealing dustproof cover plate for an automobile gearbox comprises a cover plate main body 1 and a liquid cooling system 2, wherein the liquid cooling system 2 is arranged inside the cover plate main body 1.
The cover plate main body 1 comprises an outer plate layer 11, an inner plate layer 12 and a connecting enclosure 13, wherein outer rings of the outer plate layer 11 and the inner plate layer 12 are respectively connected with the connecting enclosure 13, the outer plate layer 11 and the connecting enclosure 13 are made of PA66+40% glass fiber plastics, the cover plate main body has good structural strength and heat transfer blocking capacity, the inner plate layer 12 is made of metal materials, a vacuum heat insulation layer 101 is arranged between the outer plate layer 11 and the inner plate layer 12, after the cover plate main body 1 is installed in an automobile gearbox, heat in the automobile gearbox is transferred to the inner plate layer 12 and then blocked by the vacuum heat insulation layer 101, and the heat is difficult to be dissipated from the inner plate layer 12 to the outer plate layer 11 again, so that the cover plate main body 1 has good heat insulation performance, the time of starting a hot car by a cold car can be shortened, the oil consumption is reduced, and carbon deposition caused by idling is reduced.
The sealing ring 14 is installed on one side of the connecting enclosure 13 facing the inner plate layer 12, the sealing ring 14 is installed around according to the outline of the cover plate main body 1, and the cover plate main body 1 is tightly pressed with the edge of the gearbox after being installed, so that an installation gap is filled, and the sealing performance of the cover plate is improved.
Soundproof cotton layer 15 has been laid to the inner board layer 12 outside, and soundproof cotton layer 15 covers entirely the surface of inner board layer 12, soundproof cotton layer 15 can be after apron main part 1 installs the automobile gearbox, carries out effectual absorption and reduction to the noise of component work in the gearbox, reduces the noise influence greatly, improves the travelling comfort of driving.
The liquid cooling system 2 comprises a condensing coil 21 and a condensing liquid inlet valve 22, the condensing coil 21 is arranged on the inner side surface of the inner plate layer 12 in a winding mode, the inner space of the condensing coil 21 is directly in contact with the inner side surface of the inner plate layer 12, when cooling liquid flows into the condensing coil 21, the cooling liquid can exchange heat with the inner plate layer 12, heat of the inner plate layer 12 is taken away, heat in the gearbox is timely taken away when the internal temperature of the gearbox is too high, and overheating damage of the gearbox is prevented.
The condensing coil 21 is not in contact with the outer plate layer 11 and when no coolant is flowing in the condensing coil 21, the heat in the gearbox is still blocked by the vacuum insulation 101.
The upper end of the condensing coil 21 extends out of the connecting enclosure 13 and is provided with a feed inlet, the lower end of the condensing coil 21 is communicated with a discharge pipe 23, the diameter of the discharge pipe 23 is smaller than that of the condensing coil 21, cooling liquid flows down in the condensing coil 21 due to gravity, when the liquid injection speed of an external feed pump is larger than the natural downward flow speed of the cooling liquid in the discharge pipe 23, the cooling liquid can be accumulated at the joint of the condensing coil 21 and the discharge pipe 23, and the discharge pipe 23 is extruded out in an accelerating way after the whole condensing coil 21 is filled, so that the inner space of the condensing coil 21 can be filled with the cooling liquid, and heat dissipation can be performed more quickly and effectively.
The vacuum heat insulation layer 101 is internally provided with a condensation liquid inlet valve 22 at a position close to a feed inlet of the condensation coil 21, the condensation liquid inlet valve 22 comprises a guide shell 221, a heat conduction column 222, a fixed column 223, an outer sleeve 224 and a driven plug-in 225, the guide shell 221 is fixedly arranged on the inner side surface of the inner plate layer 12 but is not contacted with the outer plate layer 11, the guide shell 221 is internally provided with a cylindrical guide cavity 201, a straight line of the axial center of the guide cavity 201 is perpendicular to the inner plate layer 12, and the guide cavity 201 is communicated with the condensation coil 21 so that cooling liquid can smoothly pass through the guide cavity 201.
One end of the heat conducting column 222 is inserted into the flow guiding cavity 201, and the other end penetrates through the inner plate layer 12 and the soundproof cotton layer 15 to directly contact with the environment in the gearbox. The fixed column 223 is coaxially installed in the flow guiding cavity 201, the packing cavity 202 is provided in the fixed column 223 to pack the portion of the heat conducting column 222 inserted into the flow guiding cavity 201, and the heat conducting column 222 can transfer the heat in the gearbox to the packing cavity 202, so that the temperature of the packing cavity 202 is raised.
The outer sleeve 224 is coaxially arranged outside the fixed column 223, the outer sleeve 224 can axially rotate outside the fixed column 223, a plurality of liquid pushing plates 226 are symmetrically arranged on the circumference of the outer sleeve 224, the liquid pushing plates 226 are closely attached to the inner wall of the diversion cavity 201, and cooling liquid pumped into the condensing coil 21 can drive the outer sleeve 224 to rotate by pushing the liquid pushing plates 226 after entering the diversion cavity 201, and the cooling liquid can also be conveyed along with the rotation of the liquid pushing plates 226.
The driven insert 225 is coupled to the outer sleeve 224 and is rotatably inserted into the packaging cavity 202, the driven insert 225 being rotatable with the outer sleeve 224. The tin-bismuth alloy 227 with the melting point of about 100 ℃ is filled in the wrapping cavity 202, the tin-bismuth alloy 227 in the wrapping cavity 202 is solid at room temperature, and is combined with the inner wall of the wrapping cavity 202 and the driven plug-in 225, at the moment, the driven plug-in 225 cannot rotate in the wrapping cavity 202, the rotating positions of the outer sleeve 224 and the liquid push plate 226 are locked, external cooling liquid is blocked by the liquid push plate 226 and cannot enter the condensing coil 21 for heat exchange, and the cover plate main body 1 with the vacuum heat insulation layer 101 can well insulate the gearbox; after the temperature of the gearbox rises to above 100 ℃, the heat conduction column 222 continuously transmits heat in the gearbox into the wrapping cavity 202 to heat the tin-bismuth alloy 227, the tin-bismuth alloy 227 is gradually melted to become liquid after being heated, at the moment, the driven insert 225 is not locked by the tin-bismuth alloy 227 and can freely rotate, and external cooling liquid can push the liquid push plate 226 to enter the condensing coil 21 to cool the gearbox, so that the risk caused by overhigh temperature of the gearbox is prevented.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a sealed dustproof apron for automobile gearbox, includes apron main part (1) and liquid cooling system (2), liquid cooling system (2) are installed inside apron main part (1), its characterized in that:
the cover plate main body (1) comprises an outer plate layer (11), an inner plate layer (12) and a connecting enclosure (13), wherein the outer rings of the outer plate layer (11) and the inner plate layer (12) are respectively connected with the connecting enclosure (13), and a vacuum heat insulation layer (101) is arranged between the connecting plate layer (11) and the inner plate layer (12);
the liquid cooling system (2) comprises a condensing coil (21) and a condensing liquid inlet valve (22), wherein the inner space of the condensing coil (21) is directly contacted with the inner side surface of an inner plate layer (12), the condensing liquid inlet valve (22) is arranged at the position, close to a feeding hole of the condensing coil (21), in a vacuum heat insulation layer (101), the condensing liquid inlet valve (22) comprises a guide shell (221), a heat conducting column (222), a fixed column (223), an outer sleeve (224) and a driven plug-in unit (225), the driven plug-in unit (225) is rotatably arranged in the fixed column (223), and tin-bismuth alloy (227) with the melting point of 100 ℃ is poured in the fixed column (223).
2. The sealed dust cover for an automotive transmission according to claim 1, wherein: the outer plate layer (11) and the connecting enclosure (13) are made of heat-insulating hard materials, and the inner plate layer (12) is made of heat-conducting hard materials.
3. The sealed dust cover for an automotive transmission according to claim 1, wherein: the condensing coil (21) is sinuously wound around the inside surface of the inner deck (12), the condensing coil (21) not being in contact with the outer deck (11).
4. The sealed dust cover for an automotive transmission according to claim 1, wherein: the upper end of the condensing coil (21) extends out of the connecting enclosure (13) to form a feed inlet, the lower end of the condensing coil (21) is communicated with a discharge pipe (23), and the diameter of the discharge pipe (23) is smaller than that of the condensing coil (21).
5. The sealed dust cover for an automotive transmission according to claim 1, wherein: the guide shell (221) is fixedly arranged on the inner side surface of the inner plate layer (12) but is not in contact with the outer plate layer (11), a cylindrical guide cavity (201) is formed in the guide shell (221), and the guide cavity (201) is communicated with the condensing coil (21).
6. The sealed dust cover for an automotive transmission of claim 5, wherein: one end of the heat conduction column (222) is inserted into the flow guide cavity (201), one end of the heat conduction column penetrates through the inner plate layer (12) and the soundproof cotton layer (15) and stretches out, the outer sleeve (224) is coaxially arranged outside the fixing column (223), a plurality of liquid pushing plates (226) are symmetrically arranged on the circumference outside the outer sleeve (224), and the liquid pushing plates (226) are closely attached to the inner wall of the flow guide cavity 201.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202310175647.7A CN116221368A (en) | 2023-02-28 | 2023-02-28 | Sealing dustproof cover plate for automobile gearbox |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310175647.7A CN116221368A (en) | 2023-02-28 | 2023-02-28 | Sealing dustproof cover plate for automobile gearbox |
Publications (1)
Publication Number | Publication Date |
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CN116221368A true CN116221368A (en) | 2023-06-06 |
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ID=86574603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202310175647.7A Pending CN116221368A (en) | 2023-02-28 | 2023-02-28 | Sealing dustproof cover plate for automobile gearbox |
Country Status (1)
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CN (1) | CN116221368A (en) |
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2023
- 2023-02-28 CN CN202310175647.7A patent/CN116221368A/en active Pending
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