CN113978329A - Automobile cooling seat - Google Patents

Automobile cooling seat Download PDF

Info

Publication number
CN113978329A
CN113978329A CN202111421719.9A CN202111421719A CN113978329A CN 113978329 A CN113978329 A CN 113978329A CN 202111421719 A CN202111421719 A CN 202111421719A CN 113978329 A CN113978329 A CN 113978329A
Authority
CN
China
Prior art keywords
cavity
drainage
seat
air
layer
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
Application number
CN202111421719.9A
Other languages
Chinese (zh)
Inventor
李光毅
黎庆彬
胡志豪
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.)
Guangdong Fuqiang Technology Co ltd
Original Assignee
Guangdong Fuqiang Technology 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 Guangdong Fuqiang Technology Co ltd filed Critical Guangdong Fuqiang Technology Co ltd
Priority to CN202111421719.9A priority Critical patent/CN113978329A/en
Publication of CN113978329A publication Critical patent/CN113978329A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56Heating or ventilating devices
    • B60N2/5607Heating or ventilating devices characterised by convection
    • B60N2/5621Heating or ventilating devices characterised by convection by air
    • B60N2/5628Heating or ventilating devices characterised by convection by air coming from the vehicle ventilation system, e.g. air-conditioning system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56Heating or ventilating devices
    • B60N2/5607Heating or ventilating devices characterised by convection
    • B60N2/5621Heating or ventilating devices characterised by convection by air
    • B60N2/5657Heating or ventilating devices characterised by convection by air blown towards the seat surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention discloses an automobile cooling seat which comprises a seat plate and a backrest which are connected at an included angle, wherein a hollow first cavity is arranged in the seat plate, a hollow second cavity is arranged in the backrest, the first cavity and the second cavity are communicated, an air induction port right opposite to an automobile air conditioning port is formed in the front end of the seat plate, a drainage mechanism is arranged in the first cavity and comprises a drainage shell, a drainage inlet and a drainage outlet are arranged on the drainage shell at intervals, the drainage inlet is right opposite to the air induction port, the drainage outlet faces the second cavity, a drainage fan is arranged in the drainage shell, a first air hole is formed in one side surface, close to a human body, of the seat plate and communicated with the first cavity, a second air hole is formed in one side surface, close to the human body, of the backrest, and communicated with the second cavity. The automobile cooling seat has the advantages of simple structure and good cooling effect, and can cool the buttocks and the back of a human body in a targeted manner.

Description

Automobile cooling seat
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile cooling seat.
Background
The automobile is widely used as a vehicle for traveling, and at present, consumers have higher and higher requirements on the automobile, and the automobile is required to have more performance and high comfort. In the prior art, air conditioning ports are generally arranged above and below the front portions of a main driver and a secondary driver, and are arranged in front of a rear seat and between the main driver seat and the secondary driver seat, and the air conditioning ports are used for conveying cold air or hot air to the interior of the automobile. In summer, the air conditioner mouth directly blows to the people on the seat, and the people directly feels cold air openly, but because buttock and back are laminated on the seat for a long time, lead to buttock and back temperature higher, and the travelling comfort is relatively poor, if turn down the air conditioner temperature, though can alleviate this kind of condition, but directly blow the cold air of face and shank and can make the people extremely uncomfortable, serious or even lead to the cold.
Disclosure of Invention
The embodiment of the invention aims to: the cooling seat for the automobile is good in cooling effect and high in comfort.
To achieve the purpose, the embodiment of the invention adopts the following technical scheme:
provides an automobile cooling seat, which comprises a seat board and a backrest which are connected in an included angle, wherein a hollow first cavity is arranged in the seat board, a hollow second cavity is arranged in the backrest, the first cavity and the second cavity are communicated, the front end of the seat board is provided with an air inlet opposite to the air conditioner opening of the automobile, a drainage mechanism is arranged in the first cavity, the drainage mechanism comprises a drainage shell, a drainage inlet and a drainage outlet are arranged on the drainage shell at intervals, the drainage inlet is opposite to the air induction port, the drainage outlet faces the second cavity, a drainage fan is arranged in the drainage shell, a first air hole is arranged on one side surface of the seat board which is positioned on the human body, the first air hole is communicated with the first cavity, and a second air hole is formed in one side surface, which is positioned on the backrest and is attached to the human body, of the backrest, and the second air hole is communicated with the second cavity.
As a preferable scheme of the cooling seat for the automobile, the air inducing opening is also opened at the bottom of the seat plate and adjacent to the front side of the seat plate, and the air inducing opening at the bottom of the seat plate is obliquely arranged towards the front side of the seat plate.
As a preferable scheme of the cooling seat of the automobile, the air induction opening is provided with an air filter or a filter screen.
As an optimal scheme of the automobile cooling seat, the drainage outlet is provided with a first drainage pipe and a second drainage pipe, the first drainage pipe guides cold air in the drainage shell to the side where the first air holes are formed, and the second drainage pipe guides cold air in the drainage shell to the side where the second air holes are formed.
As a preferable scheme of the cooling seat for the automobile, the seat board comprises a first body of a frame structure, a first outer cladding layer is wrapped outside the first body, the first cavity is formed in the first body, and the first air holes are formed in the first outer cladding layer;
the backrest comprises a second body of a frame structure, a second outer covering layer wraps the second body, a second cavity is formed in the second body, and second air holes are formed in the second outer covering layer.
As a preferred scheme of the automobile cooling seat, the first outer cladding layer and the second outer cladding layer are consistent in structure, the first outer cladding layer comprises a base layer, a sterilization layer and a buffer layer which are sequentially arranged from outside to inside, and the first air holes penetrate through the base layer, the sterilization layer and the buffer layer.
As an optimal scheme of the automobile cooling seat, the sterilization layer and the buffer layer are of an integrated structure, the buffer layer is a sponge layer, and the sponge layer is made of sterilization materials.
As an optimal scheme of automobile cooling seat, all be provided with the ultraviolet lamp in the first cavity with the second cavity, the bedplate and/or be provided with on the back and be used for detecting whether the people sit pressure sensor on the automobile cooling seat, the ultraviolet lamp with pressure sensor all is connected with the controller, the controller is connected with car master controller, works as pressure sensor detects nobody is gone up just on the automobile cooling seat car master controller detects the car and stops and lock after the door, the controller restarts the ultraviolet lamp is opened.
As a preferred scheme of car cooling seat, still include energy supply module, the controller, ultraviolet lamp and pressure sensor all with energy supply module connects.
As a preferred scheme of car cooling seat, still include infrared sensor, infrared sensor is used for detecting on the car cooling seat and whether someone has around the car cooling seat, infrared sensor with the controller is connected.
The embodiment of the invention has the beneficial effects that:
the cavity is arranged in the seat board and the backrest of the automobile cooling seat, the air inlet is formed in the front side of the seat board, the drainage mechanism is arranged in the cavity, cold air blown out from the automobile air conditioner opening is forcibly sucked into the first cavity and the second cavity, and then the cold air is directly conveyed to the hip and the back of a person through the first air hole and the second air hole, so that the temperature of the human body is reduced, and the cooling effect is good; the arrangement of the drainage mechanism can not only generate negative pressure on the air induction port to suck air in the air conditioning port, but also convey cold air in the first cavity to the second cavity, so that the first air hole and the second air hole can both have cold air.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic cross-sectional view of a cooling seat for an automobile according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a cooling seat for a vehicle according to another embodiment of the present invention.
In the figure:
1. a seat plate; 11. a first cavity; 12. an air inducing port; 13. a first air vent; 14. a first body; 15. a first outer cladding; 151. a base layer; 152. a degerming layer; 153. a buffer layer; 2. a backrest; 21. a second cavity; 22. a second air hole; 23. a second body; 24. a second outer cladding layer; 3. a drainage mechanism; 31. a drainage shell; 32. a drainage inlet; 33. an outflow guide port; 34. a drainage fan; 4. an ultraviolet lamp; 5. a first draft tube; 6. and the second flow guide pipe.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the cooling seat for an automobile provided by the embodiment of the present invention includes a seat plate 1 and a backrest 2 connected at an included angle, a hollow first cavity 11 is disposed in the seat plate 1, a hollow second cavity 21 is disposed in the backrest 2, the first cavity 11 and the second cavity 21 are communicated, an air inlet 12 facing an air conditioning port (not shown in the figure) of the automobile is disposed at a front end of the seat plate 1, a drainage mechanism 3 is disposed in the first cavity 11, the drainage mechanism 3 includes a drainage shell 31, a drainage inlet 32 and a drainage outlet 33 are disposed at an interval on the drainage shell 31, the drainage inlet 32 faces the air inlet 12, the drainage outlet 33 faces the second cavity 21, a drainage fan 34 is disposed in the drainage shell 31, a first vent hole 13 is disposed on a side surface of the seat plate 1, which is located in contact with a human body, the first vent hole 13 is communicated with the first cavity 11, a second vent hole 22 is disposed on a side surface of the backrest 2, which is located in contact with the human body, the second air hole 22 is communicated with the second cavity 21. The cavity is arranged in the seat plate 1 and the backrest 2 of the automobile cooling seat, the air inlet 12 is arranged at the front side of the seat plate 1, the drainage mechanism 3 is arranged in the cavity, cold air blown out from an automobile air conditioning port is forcibly sucked into the first cavity 11 and the second cavity 21, and then the cold air is directly conveyed to the hip and the back of a person through the first air hole 13 and the second air hole 22, so that the temperature of the person is reduced, and the cooling effect is good; the arrangement of the drainage mechanism 3 can not only generate negative pressure to the air inlet 12 to suck air in the air conditioning port, but also convey cold air in the first cavity 11 to the second cavity 21, so that both the first air hole 13 and the second air hole 22 can have cold air.
In this embodiment, the bottom of the seat plate 1 and the front side adjacent to the seat plate 1 are also opened with an air inducing opening 12, and the air inducing opening 12 at the bottom of the seat plate 1 is inclined toward the front side of the seat plate 1. The induced air port 12 arranged at the bottom of the seat board 1 can increase the amount of cold air entering the first cavity 11 and the second cavity 21, and further increase the amount of cold air entering the first air hole 13 and the second air hole 22, and moreover, the cold air coming out of the air conditioning port can pass through the legs and the face of a person, namely the front of the person, so that the effect of reducing the temperature of the front of the person due to the fact that the cold air is introduced into the inside of the seat is avoided.
Preferably, the induced draft opening 12 is provided with an air filter or a filter net. In order to avoid dust and impurities from entering the first cavity 11 and the second cavity 21, no dust is accumulated in the two cavities, the first air hole 13 and the second air hole 22 are effectively prevented from being plugged, and the cooling effect is ensured not to be reduced.
In another embodiment, as shown in fig. 2, a duct for directionally guiding the cold air exiting from the drainage outlet 33 may be added, specifically, the drainage outlet 33 is provided with a first duct 5 and a second duct 6, the first duct 5 guides the cold air in the drainage housing 31 to the side where the first air vent 13 is located, and the second duct 6 guides the cold air in the drainage housing 31 to the side where the second air vent 22 is located. The two flow guide pipes arranged at the position of the drainage outlet 33 on the drainage shell 31 can guide cold air to the side surfaces where the air holes are located respectively, so that the cold air can directly reach the positions where the first air holes 13 and the second air holes 22 are located, and the cooling effect is improved.
In one embodiment, the seat board 1 includes a first body 14 of a frame structure, a first outer covering layer 15 is wrapped outside the first body 14, a first cavity 11 is formed in the first body 14, and a first air hole 13 is formed on the first outer covering layer 15; the backrest 2 comprises a second body 23 of a frame structure, a second outer covering layer 24 is wrapped outside the second body 23, a second cavity 21 is formed in the second body 23, and the second air holes 22 are formed in the second outer covering layer 24. The first body 14 and the second body 23 of the frame structure can not only realize good support for a human body, but also avoid the first air holes 13 and the second air holes 22, so that the first air holes 13 and the second air holes 22 are prevented from being shielded, the first outer cladding 15 can seal the first body 14 of the frame, the first cavity 11 is guaranteed to be a cavity of a closed structure, the second outer cladding 24 can seal the second body 23 of the frame, and the second cavity 21 is guaranteed to be a cavity of a closed structure.
In the present embodiment, the first outer layer 15 and the second outer layer 24 have the same structure, and the first outer layer 15 is taken as an example for description, the first outer layer 15 includes a base layer 151, a sterilization layer 152 and a buffer layer 153 which are sequentially arranged from outside to inside, and the first vent 13 penetrates through the base layer 151, the sterilization layer 152 and the buffer layer 153. The sterilization layer 152 can be disposed to perform contact sterilization on the entire outer base layer 151, and the buffer layer 153 can increase the comfort of the seat.
In other embodiments, the sterilization layer 152 and the buffer layer 153 are an integrated structure, and the buffer layer 153 is a sponge layer made of a sterilization material. The sponge layer is made of the sterilizing material, so that the number of layers of the outer cladding layer can be reduced, the manufacturing process steps are reduced, and the manufacturing cost is further reduced.
In one embodiment, as shown in fig. 1, ultraviolet lamps 4 are disposed in the first cavity 11 and the second cavity 21, pressure sensors (not shown) for detecting whether a person sits on the cooling seat of the vehicle are disposed on the seat plate 1 and the backrest 2, the ultraviolet lamps 4 and the pressure sensors are both connected to a controller, the controller is connected to the vehicle main controller, and when the pressure sensors detect that no person sits on the cooling seat of the vehicle and the vehicle main controller detects that the vehicle stops and locks the door, the controller restarts the ultraviolet lamps 4 to be turned on. The setting of ultraviolet lamp 4 can strengthen the effect of disinfection and sterilization, and the ultraviolet ray that ultraviolet lamp 4 sent can pass the surface of the first bleeder vent 13 and the direct basic unit 151 of second bleeder vent 22, that is to say the one side of first surrounding layer 15 and second surrounding layer 24 and human contact, because the seat often contacts with the people, there are very many bacteriums on the surface, clearance at ordinary times only wipes unable bacterium of cleaing away completely with wet cloth, therefore this scheme can kill the bacterium. In addition, the ultraviolet lamp 4 is turned on after the person leaves the vehicle, so that the person is not hurt completely.
In this embodiment, the cooling seat further comprises an energy supply module, and the controller, the ultraviolet lamp 4 and the pressure sensor are connected with the energy supply module. Through setting up independent functional module, can guarantee that ultraviolet lamp 4 and pressure sensor can be independent of the car, and the form of stopping of car does not have any influence to it after closing the door.
The automobile cooling seat further comprises an infrared sensor, the infrared sensor is used for detecting whether people exist on the automobile cooling seat and around the automobile cooling seat, and the infrared sensor is connected with the controller. Through setting up infrared sensor, avoid appearing after the car is stopped to lock the door, have animal or people in the car, and do not have the condition on the seat, for example child stays alone in the car when, probably not sitting on the seat, therefore pressure sensor can't detect child's existence, if open ultraviolet lamp 4 this moment, can lead to the fact the injury to child, and infrared sensor can compensate this defect, and ultraviolet lamp 4 opens when stopping still someone in the car completely.

Claims (10)

1. A cooling seat for an automobile comprises a seat board and a backrest which are connected with each other at an included angle, and is characterized in that, a hollow first cavity is arranged in the seat board, a hollow second cavity is arranged in the backrest, the first cavity and the second cavity are communicated, the front end of the seat board is provided with an air inlet opposite to the air conditioner opening of the automobile, a drainage mechanism is arranged in the first cavity, the drainage mechanism comprises a drainage shell, a drainage inlet and a drainage outlet are arranged on the drainage shell at intervals, the drainage inlet is opposite to the air induction port, the drainage outlet faces the second cavity, a drainage fan is arranged in the drainage shell, a first air hole is arranged on one side surface of the seat board which is positioned on the human body, the first air hole is communicated with the first cavity, and a second air hole is formed in one side surface, which is positioned on the backrest and is attached to the human body, of the backrest, and the second air hole is communicated with the second cavity.
2. The automobile cooling seat as claimed in claim 1, wherein the air inducing opening is opened at a bottom of the seat plate and adjacent to a front side of the seat plate, and the air inducing opening at the bottom of the seat plate is inclined toward the front side of the seat plate.
3. The vehicle cooling seat according to claim 1 or 2, wherein the air induction opening is provided with an air filter or a filter screen.
4. The cooling seat for vehicle as claimed in claim 1, wherein the drainage outlet is provided with a first drainage pipe for guiding the cool air in the drainage housing to the side of the first ventilation hole and a second drainage pipe for guiding the cool air in the drainage housing to the side of the second ventilation hole.
5. The vehicle cooling seat as claimed in claim 1, wherein the seat plate comprises a first body of a frame structure, the first body is wrapped with a first outer covering layer, the first body is formed with the first cavity therein, and the first air hole is formed on the first outer covering layer;
the backrest comprises a second body of a frame structure, a second outer covering layer wraps the second body, a second cavity is formed in the second body, and second air holes are formed in the second outer covering layer.
6. The automobile cooling seat as claimed in claim 5, wherein the first outer covering layer and the second outer covering layer have the same structure, the first outer covering layer comprises a base layer, a sterilization layer and a buffer layer sequentially arranged from outside to inside, and the first vent hole penetrates through the base layer, the sterilization layer and the buffer layer.
7. The automobile cooling seat as claimed in claim 6, wherein the degerming layer and the buffering layer are of an integral structure, the buffering layer is a sponge layer, and the sponge layer is made of degerming materials.
8. The vehicle cooling seat as claimed in claim 1, wherein an ultraviolet lamp is disposed in each of the first cavity and the second cavity, a pressure sensor for detecting whether a person sits on the vehicle cooling seat is disposed on the seat plate and/or the backrest, the ultraviolet lamp and the pressure sensor are both connected to a controller, the controller is connected to the vehicle main controller, and the controller restarts the ultraviolet lamp to be turned on when the pressure sensor detects that no person is present on the vehicle cooling seat and the vehicle main controller detects that the vehicle stops and locks the door.
9. The car cooling seat according to claim 8, further comprising an energy module, wherein the controller, the ultraviolet lamp, and the pressure sensor are all connected to the energy module.
10. The vehicle cooling seat as claimed in claim 8, further comprising an infrared sensor for detecting whether a person is present on and around the vehicle cooling seat, the infrared sensor being connected to the controller.
CN202111421719.9A 2021-11-26 2021-11-26 Automobile cooling seat Pending CN113978329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111421719.9A CN113978329A (en) 2021-11-26 2021-11-26 Automobile cooling seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111421719.9A CN113978329A (en) 2021-11-26 2021-11-26 Automobile cooling seat

Publications (1)

Publication Number Publication Date
CN113978329A true CN113978329A (en) 2022-01-28

Family

ID=79732076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111421719.9A Pending CN113978329A (en) 2021-11-26 2021-11-26 Automobile cooling seat

Country Status (1)

Country Link
CN (1) CN113978329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115742897A (en) * 2022-12-20 2023-03-07 阿维塔科技(重庆)有限公司 Seat ventilation structure and vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070209369A1 (en) * 2006-03-07 2007-09-13 Yuji Ito Air-conditioning device
CN101279590A (en) * 2008-04-25 2008-10-08 奇瑞汽车股份有限公司 Low-cost ventilating system for vehicle seat
KR20120085184A (en) * 2011-01-21 2012-07-31 히다찌 겐끼 가부시키가이샤 Duct disposition structure of working machinery
CN203438902U (en) * 2013-07-19 2014-02-19 湖南吉利汽车部件有限公司 Automobile seat air-conditioning system
CN112361516A (en) * 2020-11-30 2021-02-12 汪德熙 Seat with air purification function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070209369A1 (en) * 2006-03-07 2007-09-13 Yuji Ito Air-conditioning device
CN101279590A (en) * 2008-04-25 2008-10-08 奇瑞汽车股份有限公司 Low-cost ventilating system for vehicle seat
KR20120085184A (en) * 2011-01-21 2012-07-31 히다찌 겐끼 가부시키가이샤 Duct disposition structure of working machinery
CN203438902U (en) * 2013-07-19 2014-02-19 湖南吉利汽车部件有限公司 Automobile seat air-conditioning system
CN112361516A (en) * 2020-11-30 2021-02-12 汪德熙 Seat with air purification function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115742897A (en) * 2022-12-20 2023-03-07 阿维塔科技(重庆)有限公司 Seat ventilation structure and vehicle
CN115742897B (en) * 2022-12-20 2024-05-17 阿维塔科技(重庆)有限公司 Seat ventilation structure and vehicle

Similar Documents

Publication Publication Date Title
KR101180702B1 (en) A Seat for the Vehicle
CN109849622B (en) Air cleaning device for vehicle
JP2017061289A (en) Air conditioner linked seat device
DE602006005639D1 (en) Seat, in particular vehicle seat, with means for deflecting the ventilation current based on the Coanda effect
CN113978329A (en) Automobile cooling seat
KR101984728B1 (en) Ventilation seat apparatus for vehicle
CN108439150A (en) One kind, which has, sterilizes energy-efficient ventilation elevator
CN201068119Y (en) Automobile ventilation seat structure
JP2020050238A (en) Vehicular air conditioner
CN202896343U (en) Automobile seat
CN106114319B (en) Aeration seat and its backrest
CN205113084U (en) Negative pressure formula ventilation seatpad
CN109000078A (en) Air guiding structure
CN215921986U (en) Vehicle seat
JP2008179264A (en) Vehicular seat air-conditioner
KR100352320B1 (en) Inflow of air prevention device of a passenger car train
ITTO990641A1 (en) VENTILATED VEHICLE SEAT.
JP2007223542A (en) Fan device for seat
KR101508234B1 (en) A seat air conditioner for a vehicle
CN209381858U (en) A kind of automotive seat air heat device
CN202764759U (en) Automobile back row ventilation double-seat
KR20150113227A (en) The ventilation system in the vehicle seat
CN212921234U (en) Ventilation heating copilot seat
CN219927527U (en) Automobile seat with heating and two-way ventilation functions
KR200204482Y1 (en) Inflow of air prevention device of a passenger car train

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20220128

RJ01 Rejection of invention patent application after publication