WO2024025246A1 - Réceptacle pour charger de l'hydrogène - Google Patents

Réceptacle pour charger de l'hydrogène Download PDF

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Publication number
WO2024025246A1
WO2024025246A1 PCT/KR2023/010455 KR2023010455W WO2024025246A1 WO 2024025246 A1 WO2024025246 A1 WO 2024025246A1 KR 2023010455 W KR2023010455 W KR 2023010455W WO 2024025246 A1 WO2024025246 A1 WO 2024025246A1
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WO
WIPO (PCT)
Prior art keywords
hydrogen
flow path
receptacle
charging
filter
Prior art date
Application number
PCT/KR2023/010455
Other languages
English (en)
Korean (ko)
Inventor
홍진용
김정권
Original Assignee
남양넥스모 주식회사
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
Priority claimed from KR1020220092124A external-priority patent/KR20240014681A/ko
Priority claimed from KR1020220092125A external-priority patent/KR20240014682A/ko
Application filed by 남양넥스모 주식회사 filed Critical 남양넥스모 주식회사
Publication of WO2024025246A1 publication Critical patent/WO2024025246A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a receptacle for hydrogen charging (RECEPTACLE FOR REFUELING HYDROGEN), and more specifically, to a receptacle for hydrogen charging used to charge hydrogen into the hydrogen tank of a hydrogen fuel cell vehicle by connecting the charging nozzle of a hydrogen charging station. .
  • hydrogen fuel cell vehicles use electrical energy generated through a chemical reaction between oxygen and hydrogen in the stack as a power source.
  • the hydrogen fuel cell vehicle has the advantage of being able to continuously generate power regardless of the capacity of the battery by supplying fuel and air from outside, which has the advantage of being highly efficient and emitting almost no pollutants.
  • Recently, the technology of the hydrogen fuel cell vehicle has been developed. It's becoming more active.
  • the hydrogen fuel cell vehicle is equipped with one or more hydrogen tanks filled with high-pressure hydrogen gas. Additionally, a receptacle for hydrogen charging is installed in the hydrogen tank of the hydrogen fuel cell vehicle. A charging nozzle connected to a buffer tank of a hydrogen gas charging station can be connected to the receptacle to charge hydrogen into the hydrogen tank.
  • the inside of the receptacle is provided with a filter unit that filters out foreign substances from hydrogen supplied into the inside of the receptacle from the charging nozzle.
  • Republic of Korea Patent Publication No. 10-1907886 (October 17, 2018) (hereinafter referred to as 'prior art') discloses a 'receptacle for a hydrogen fuel cell vehicle' equipped with the filter unit.
  • the prior art includes a first body, a second body, a filter unit, and a valve unit.
  • the first body and the second body are coupled to each other, and the first body is coupled to a charging nozzle that supplies fuel.
  • the filter unit is installed inside the first body and filters the charged fuel to remove foreign substances.
  • the valve unit is installed inside the second body and prevents backflow of the charged fuel.
  • a sealing member is installed between the filter unit and the valve unit, the sealing member is formed in a substantially cylindrical shape with an open upper surface, and the fuel filtered in the filter unit is disposed on the lower surface of the sealing member.
  • a transmission path is formed to deliver the fluid to the valve unit.
  • valve part of the prior art is comprised of a cylindrical member, a valve body, and a spring.
  • the cylindrical member is installed in the installation space of the second body
  • the valve body is installed to be able to move up and down inside the cylindrical member to open and close the transmission passage of the sealing member
  • the spring is installed in the installation space of the cylindrical member. It is installed inside and provides elastic force to the valve body.
  • the cylindrical member of the prior art is formed in a substantially cylindrical shape with an open upper surface, and has an outer diameter that is smaller than the inner diameter of the installation space of the second body.
  • a plurality of discharge holes are formed on the side of the cylindrical member to discharge the fuel flowing into the cylindrical member through the transmission passage of the sealing member to the outside.
  • the fuel supplied into the interior of the cylindrical member through the transmission passage of the sealing member is discharged to the outside of the cylindrical member through the plurality of discharge holes, and then the fuel is discharged to the outside of the cylindrical member through the plurality of discharge holes. 2 It can be supplied to the fuel tank through a supply passage formed in the lower part of the second body along the installation space of the body.
  • the filter unit is composed of a sintered filter, a protector, a cap, and a boss.
  • the sintered filter is manufactured in a cylindrical shape by overlapping a plurality of wire meshes having different processes and filters the charged fuel.
  • the protector is installed inside the sintered filter.
  • the cap is coupled to the top of the sintered filter and the top of the protector.
  • the boss is coupled to the lower end of the sintered filter and the lower end of the protector, and a delivery passage is formed inside to deliver the filtered fuel to the valve unit.
  • the sintered filter and the protector were formed as separate products
  • the sintered filter was coupled between the cap and the boss by welding the cap and the boss by a welding method such as laser welding. Fixed with boss.
  • a first insertion groove is formed on the lower surface of the cap into which the upper end of the sintered filter and the upper end of the protector are inserted
  • a second insertion groove is formed on the upper surface of the boss into which the lower end of the sintered filter and the lower end of the protector are inserted. was formed, and the sintered filter, the cap, and the boss were each fixed by adhesive using an adhesive such as epoxy.
  • the technical object of the present invention is to provide a receptacle for hydrogen charging that can improve fuel charging efficiency by improving the fluidity of hydrogen injected into a hydrogen tank.
  • Another technical object of the present invention is to provide a hydrogen charging receptacle that facilitates assembly of the filter and has improved airtightness to prevent hydrogen leakage.
  • the receptacle for hydrogen charging is composed of a first body, a second body, and a filter unit.
  • a charging nozzle of a hydrogen charging station is coupled to one end of the first body.
  • One end of the second body is inserted into the internal flow path of the first body through the other end of the first body and coupled to the first body.
  • the other end of the second body is coupled to the hydrogen tank of the vehicle.
  • the filter unit is disposed in the internal flow path of the first body.
  • the filter unit filters out foreign substances from hydrogen flowing into the internal flow path of the first body.
  • the surface of the cap portion of the filter unit facing one end of the first body is formed as an inclined portion. The inclined portion moves away from one end of the first body as it moves from the center of the cap to the outside of the cap.
  • a hydrogen flow groove through which hydrogen flowing into the internal flow path of the first body flows is formed in the inclined portion.
  • the hydrogen flow groove may be formed at a right angle with a surface facing one end of the first body and a surface facing radially outward.
  • the hydrogen flow groove may be formed as a pair of hydrogen flow grooves.
  • the pair of hydrogen flow grooves may be disposed on opposite sides of the cap portion.
  • the hydrogen flow groove may be formed of a plurality of hydrogen flow grooves spaced apart from each other in the circumferential direction.
  • a valve unit may be further disposed in the internal flow path of the second body.
  • the valve unit can prevent backflow of hydrogen flowing from the filter unit into the internal flow path of the second body.
  • a plurality of hydrogen outlets may be formed on the outer peripheral surface of the valve housing of the valve unit.
  • the plurality of hydrogen outlets may guide hydrogen flowing into the valve housing from the filter unit to the internal flow path of the second body.
  • the plurality of hydrogen outlets may be formed to be spaced apart from each other in the circumferential direction of the valve housing.
  • the plurality of hydrogen outlets may be formed to be inclined toward the other end of the second body toward the radial outer side of the valve housing.
  • a plurality of hydrogen guide grooves may be formed on the outer peripheral surface of the valve housing at an end close to the other end of the second body.
  • the plurality of hydrogen guide grooves may guide hydrogen flowing into the internal flow path of the second body through the plurality of hydrogen outlets to the internal flow path of the other end of the second body.
  • the plurality of hydrogen guide grooves may be formed to correspond to the plurality of hydrogen outlets in the longitudinal direction of the valve housing.
  • the plurality of hydrogen guide grooves may be formed to be inclined closer to the radial center of the valve housing as they get closer to the other end of the second body.
  • the valve unit may further include an opening and closing member and an elastic member.
  • the opening and closing member may be disposed in the inner space of the valve housing.
  • the opening and closing member may open and close the plurality of hydrogen outlets while moving in the longitudinal direction of the valve housing due to a hydrogen pressure difference between the charging nozzle and the hydrogen tank.
  • the elastic member may be disposed in the inner space of the valve housing.
  • the elastic member may elastically support the opening and closing member in the longitudinal direction of the valve housing.
  • a seating groove may be formed in the inner space of the valve housing on a surface close to the other end of the second body. A portion of the elastic member may be inserted into the seating groove.
  • a communication hole may be formed in the valve housing at an end close to the other end of the second body. The communication hole may communicate with the seating groove.
  • a first inclined surface may be formed on the inner peripheral surface of the second body at a portion corresponding to the plurality of hydrogen outlets.
  • the first inclined surface may be inclined closer to the radial outer side of the second body as it approaches the other end of the second body.
  • a second inclined surface may be formed on the inner peripheral surface of the second body in a portion corresponding to the plurality of hydrogen guide grooves.
  • the second inclined surface may be inclined closer to the radial inner side of the second body as it approaches the other end of the second body.
  • a plane may be formed on the inner peripheral surface of the second body.
  • the plane may extend in the longitudinal direction of the second body.
  • a connection may be made between the first inclined surface and the second inclined surface.
  • the filter unit may be composed of a sealing member, a filter guide, and a filter.
  • a flange may be protruding from the outer peripheral surface of the sealing member. The flange may contact one end of the second body to seal between an inner peripheral surface of the first body and one end of the second body.
  • An internal flow path that communicates with the internal flow path of the first body and the internal flow path of the second body may be formed in the sealing member.
  • the filter guide may have a guide portion and the cap portion.
  • the guide portion may be formed in a cylindrical shape.
  • the guide portion may be fastened to the sealing member.
  • a hydrogen inlet may be formed on the circumferential surface of the guide portion.
  • the cap portion may be formed at one end of the guide portion to protrude radially outward from the guide portion.
  • the filter may surround the guide portion.
  • One end of the filter may be assembled between a first assembly protrusion formed on the edge of the cap portion to face the guide portion and the guide portion.
  • the other end of the filter may be assembled between the guide part and a second assembly protrusion formed on one edge of the sealing member to face the guide part.
  • the filter guide may further have a fastening part.
  • the fastening portion may be formed at the other end of the guide portion so as not to protrude radially outward from the guide portion.
  • the fastening part may be inserted into the internal flow path of the sealing member through one end of the sealing member and fastened to the sealing member.
  • the internal flow path of the first body may be formed as a first internal flow path extending from one end to the other end of the first body.
  • the internal flow path of the second body may be formed as a second internal flow path extending from one end to the other end of the second body.
  • the internal flow path of the sealing member may be formed as a third internal flow path extending from one end to the other end of the sealing member.
  • the internal flow path of the sealing member may guide hydrogen flowing into the first internal flow path to the second internal flow path.
  • the other end of the sealing member may be inserted into the second internal flow path through one end of the second body.
  • One outer edge of the filter may be formed in a chamfer shape.
  • the other outer edge of the filter may be formed in a round shape.
  • the outer edge of the end of the fastening part may be formed in a chamfer shape.
  • the middle portion of one side of the flange may be formed in a chamfer shape.
  • the inner stepped middle portion of the first body that contacts the middle portion of one surface of the flange may be formed in a chamfer shape.
  • the middle portion of the other side of the flange may be formed in a chamfer shape.
  • the middle portion of one end of the second body, which is in contact with the middle portion of the other side of the flange, may be formed in a chamfer shape.
  • One outer edge of the second body may be formed in a chamfer shape.
  • the valve unit may further include a stopper.
  • the stopper may be formed in a cylindrical shape. The stopper may be inserted into one end of the valve housing. The stopper may be contacted when the opening and closing member closes the hydrogen outlet.
  • a sealing groove may be formed at one end of the stopper.
  • a sealing protrusion may be formed on the other end of the sealing member. The sealing protrusion may be inserted into the sealing groove.
  • the cap portion of the filter unit has a surface facing one end of the first body formed as an inclined portion that moves away from one end of the first body as it goes from the center of the cap portion to the outside of the cap portion, and the inclined portion Since a hydrogen flow groove is formed in the portion through which hydrogen flowing into the internal flow path of the first body flows, there is an effect of improving fuel charging efficiency by improving the fluidity of hydrogen injected into the hydrogen tank.
  • a plurality of hydrogen outlets formed on the outer peripheral surface of the valve housing are formed to be inclined closer to the other end of the second body toward the radial outer side of the valve housing, so that the hydrogen tank There is also the effect of improving fuel charging efficiency by improving the fluidity of hydrogen injected into the system.
  • the hydrogen charging receptacle according to the present invention has a plurality of hydrogen guide grooves formed at the ends of the outer peripheral surface of the valve housing to direct hydrogen flowing into the internal flow path of the second body through the plurality of hydrogen outlets to the other end of the second body. Since it is guided to the internal flow path, the fluidity of the hydrogen injected into the hydrogen tank can be further improved, thereby further improving fuel charging efficiency.
  • the receptacle for hydrogen charging according to the present invention has a first inclined surface, a second inclined surface, and a flat surface formed on the inner peripheral surface of the second body, the fluidity of hydrogen injected into the hydrogen tank is further improved, thereby improving fuel charging efficiency. There are also effects that can be further improved.
  • one end of the filter is assembled between the guide part and a first assembly protrusion formed on the edge of the cap part of the filter guide to face the guide part of the filter guide, and the other end of the filter is a sealing member. Since it is assembled between the guide part and a second assembly protrusion formed on one end of the edge to face the guide part, there is an effect that the filter can be easily assembled to the filter guide and the sealing member.
  • the receptacle for hydrogen charging according to the present invention has the effect of improving the assembly of each component because the connection portion or contact portion of each component is formed in a chamfer shape or a round shape.
  • the middle portion of one side of the flange formed on the sealing member is formed in a chamfer shape
  • the middle portion of the internal step in contact with the middle portion of one side of the flange is formed in a chamfer shape
  • the middle portion of the other side of the flange is formed in a chamfer shape. Since the middle portion of one end of the second body, which is in contact with the middle portion of the other side of the flange, is formed in a chamfer shape, airtightness to prevent hydrogen leakage is improved.
  • a sealing groove is formed in the stopper of the valve unit, and a sealing protrusion inserted into the sealing groove is formed in the sealing member, so that airtightness to prevent hydrogen leakage is improved. there is.
  • FIG. 1 is a perspective view showing a receptacle for hydrogen charging according to a first embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1;
  • Figure 3 is a side cross-sectional view of Figure 1;
  • Figure 4 is a view showing the valve housing shown in Figure 2;
  • Figure 5 is a view showing the lower part of Figure 3;
  • Figure 6 is a diagram showing another embodiment of Figure 5;
  • FIG. 7 is a perspective view showing a receptacle for hydrogen charging according to a second embodiment of the present invention.
  • Figure 8 is a side cross-sectional view of Figure 7;
  • Figure 9 is a perspective view showing the sealing member, filter guide, and filter shown in Figure 8.
  • Figure 10 is an exploded perspective view of Figure 9;
  • Figure 11 is a side cross-sectional view of Figure 9;
  • Figure 12 is a diagram showing another embodiment of Figure 11;
  • Figure 13 is an enlarged view of part A shown in Figure 11;
  • Figure 14 is an enlarged view of part B shown in Figure 11;
  • Figure 15 is an enlarged view of part C shown in Figure 11;
  • Figure 16 is an enlarged view of portion D shown in Figure 8.
  • Figure 17 is an enlarged view of portion E shown in Figure 8.
  • First internal passage 180 Internal step middle portion of the first body
  • Second internal passage 280 One middle portion of the second body
  • Second assembly protrusion 305 Third internal passage
  • Flange 318 Middle portion of one side of flange
  • Filter 510 One outer edge of the filter
  • valve unit 610 valve housing
  • Opening and closing member 630 Stopper
  • top, bottom, top, bottom, top and bottom refer to the directions shown in the drawings. Therefore, the top may have the same meaning as one end, the bottom may have the same meaning as the other end, the upper side may have the same meaning as one side, the lower side may have the same meaning as the other side, and the upper end may have the same meaning as one end. The lower end may have the same meaning as the other end.
  • Figure 1 is a perspective view showing a receptacle for hydrogen charging according to a first embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1
  • Figure 3 is a side cross-sectional view of Figure 1.
  • the receptacle 1 for hydrogen charging includes a first body 100, a second body 200, and a filter unit 300, 400, and 500. And it may include a valve unit 600.
  • the first body 100 and the second body 200 may form the external shape of the receptacle 1.
  • the first body 100 may form the upper exterior shape of the receptacle 1, and the second body 200 may have its upper end coupled to the lower end of the first body 100 to form the lower exterior shape of the receptacle 1. can be formed.
  • the lower end of the first body 100 may be formed as a large diameter portion with a larger diameter than the remaining portion of the first body 100, and a step 170 is formed at the top of the large diameter portion inside the first body 100. It can be.
  • the upper end of the second body 200 may be inserted into the large diameter portion, and the upper end of the second body 200 may be disposed to face the step 170 .
  • Screw threads are formed on the inner peripheral surface of the large diameter part and the outer peripheral surface of the upper end of the second body 200 inserted into the large diameter part, so that the lower end of the first body 100 and the upper end of the second body 200 are screwed together. It can be.
  • the upper surface of the flange 310 formed on the outer peripheral surface of the sealing member 300 may be in contact with the step 170 of the first body 100, and the lower surface may be in contact with the upper surface of the second body 200. there is.
  • the step 170 may be placed below the filter 500, which will be described later.
  • a cylindrical fastening member disposed on the outer peripheral surface of the second body 200 ( The upper end of 250 is inserted into the large diameter portion of the first body 100 to further strengthen the coupling of the first body 100 and the second body 200.
  • the outer peripheral surface of the upper end of the fastening member 250 that is inserted and fastened into the large diameter portion of the first body 100 may be formed with a screw thread that is fastened to the screw thread formed on the inner peripheral surface of the large diameter portion.
  • the upper end of the first body 100 may be coupled to a charging nozzle of a hydrogen charging station, and the lower end of the second body 200 may be coupled to a hydrogen tank of a hydrogen fuel cell vehicle. Since the first body 100 and the second body 200 are coupled to each other, the hydrogen flowing into the inside of the receptacle 1 from the charging nozzle of the hydrogen charging station through the upper opening of the first body 100 is connected to the second body 100.
  • the hydrogen tank can be charged through the bottom opening of the body 200.
  • the first body 100 may be formed in a substantially cylindrical shape with open upper and lower surfaces.
  • An internal flow path 105 through which the charged fuel moves may be formed inside the first body 100.
  • the internal passage 105 of the first body 100 may be formed as a first internal passage 105 extending in the longitudinal direction (vertical direction) of the first body 100 from the top to the bottom of the first body 100. You can.
  • the first internal flow passage 105 may refer to the internal space of the first body 100.
  • the charging nozzle of the hydrogen charging station may be coupled to the opening in the upper surface of the first body 100 to form an inlet through which hydrogen flows. That is, the upper opening of the first internal passage 105 may be the inlet through which hydrogen flows from the charging nozzle of the hydrogen charging station.
  • a first ring 110 and a second ring 120 that prevent fuel leakage when the charging nozzle is coupled may be installed at a certain distance up and down.
  • the first ring 110 may function to seal the first charging nozzle for charging fuel at a pressure of about 5 bar to 100 bar, that is, low pressure
  • the second ring 120 may function at a pressure of about 100 bar to 700 bar. It can function to seal the second charging nozzle, which charges fuel at a high pressure.
  • the first charging nozzle may be formed with a larger diameter than the second charging nozzle, and the second charging nozzle may be formed with a smaller diameter than the first charging nozzle.
  • a partition protrusion 108 corresponding to the diameter of the second charging nozzle may be formed on the inner peripheral surface of the upper end of the first body 100.
  • a first installation groove 106 in which the first ring 110 is installed may be formed on the inner peripheral surface of the first body 100 disposed on the upper side of the partition protrusion 108, and a first installation groove 106 may be formed on the lower part of the partition protrusion 108.
  • a second installation groove 107 in which the 2 ring 120 is installed may be formed.
  • the partition protrusion 108 may partition the first installation groove 106 and the second installation groove 107.
  • the diameter of the first installation groove 106 may be formed to be larger than the diameter of the second installation groove 107.
  • the first backup ring 130 may be installed on the upper side of the second ring 120, and the second backup ring 140 may be installed on the lower side of the second ring 120. You can.
  • the first backup ring 130 can function to minimize the movement and deformation of the second ring 120 being pushed upward by the charging pressure of hydrogen, and the second backup ring 130 (140) may function to minimize movement and deformation of the second ring 120 being pushed downward due to the charging pressure of hydrogen.
  • the first backup ring 130 and the second backup ring 140 may be made of a synthetic resin material with excellent low-temperature airtightness, tensile strength, and elongation, such as thermoplastic polyurethane (TPU).
  • TPU thermoplastic polyurethane
  • the first ring 110 and the second ring 120 may have a circular cross-section, and the first backup ring 130 and the second backup ring 140 may have a square cross-section.
  • the first ring 110 and the second ring 120 completely block hydrogen leakage when charging hydrogen, improve airtightness, and prevent safety accidents due to hydrogen leakage.
  • the second body 200 may be formed in a substantially cylindrical shape with open upper and lower surfaces.
  • An internal flow path 205 through which the charged fuel moves may be formed inside the second body 200.
  • the internal passage 205 may be formed as a second internal passage 205 extending in the longitudinal direction (vertical direction) of the second body 200 from the top to the bottom of the second body 200.
  • the second internal flow passage 205 may refer to the internal space of the second body 200.
  • the hydrogen tank may be coupled to the opening in the lower surface of the second body 200 to form an outlet through which hydrogen flows out. That is, the bottom opening of the second internal flow path 205 may be the outlet through which hydrogen flows out into the hydrogen tank.
  • the upper end of the second body 200 is formed to have a smaller diameter than the diameter of the lower end of the first body 100 and can be inserted into the lower end of the first body 100 and coupled to the first body 100. That is, the upper end of the second body 200 may be inserted into the first internal passage 105 through the lower end of the first body 100 and coupled to the first body 100.
  • the filter units 300, 400, and 500 may include a sealing member 300, a filter guide 400, and a filter 500.
  • the lower end of the filter guide 400 may be inserted and coupled to the upper end of the sealing member 300.
  • the sealing member 300 may be disposed in the first internal flow passage 105 of the first body 100.
  • the sealing member 300 may be formed in a cylindrical shape.
  • An internal flow path 305 may be formed in the sealing member 300.
  • the internal passage 305 may be formed as a third internal passage 305 extending in the longitudinal direction (vertical direction) of the sealing member 300 from the top of the sealing member 300 to the bottom of the sealing member 300.
  • the third internal flow path 305 may refer to the internal space of the sealing member 300.
  • the internal passage 305 of the sealing member 300 includes the internal passage 205 of the filter guide 400 disposed in the internal passage 105 of the first body 100 and the internal passage 205 of the second body 200.
  • the internal flow path of the valve housing 610 disposed in can be communicated.
  • the third internal passage 305 of the sealing member 300 can be communicated with the first internal passage 105 of the first body 100 and the second internal passage 205 of the second body 200. there is.
  • the filter 500 can filter out foreign substances from hydrogen flowing into the first internal flow path 105 of the first body 100 and guide them into the inside of the filter guide 400, and the filter guide 400 can filter out foreign substances from the hydrogen flowing into the first internal flow path 105 of the first body 100. ) can be guided to the third internal flow path 305 of the sealing member 300.
  • hydrogen flowing from the charging nozzle into the first internal passage 105 of the first body 100 may pass through the filter 500, have foreign substances filtered out, and flow into the interior of the filter guide 400,
  • the third internal flow path 305 of the sealing member 300 can guide hydrogen filtered by the filter 500 and introduced into the filter guide 400 into the valve housing 610 of the valve unit 600.
  • Hydrogen flowing into the inside of the valve housing 610 can be moved to the second internal flow path 205 of the second body 200 through a plurality of hydrogen outlets 615 formed on the outer peripheral surface of the valve housing 610.
  • Hydrogen moved to the second internal passage 205 of the second body 200 can be charged into the hydrogen tank of the vehicle through the bottom opening of the second body 200.
  • a flange 310 may be formed to protrude on the outer peripheral surface of the sealing member 300.
  • the flange 310 may be formed continuously in the circumferential direction of the sealing member 300 and may be formed to protrude in the radial direction of the sealing member 300.
  • the upper surface of the flange 310 is in contact with the step 170 of the first body 100 to seal the gap between it and the step 170, and the lower surface of the flange 310 is in contact with the upper surface of the second body 200. This can seal the space between the upper surface of the second body 200 and the upper surface of the second body 200.
  • the flange 310 of the sealing member 300 may be inserted and placed between the step 170 of the first body 100 and the top of the second body 200.
  • the upper surface of the flange 310 of the sealing member 300 is in contact with the step 170, and the lower surface of the flange 310 of the sealing member 300 is in contact with the top of the second body 200, so that the sealing member 300
  • the flange 310 may seal between the inner peripheral surface of the first body 100 and the top of the second body 200.
  • the lower end of the sealing member 300 is inserted into the second internal passage 205 of the second body 200 through the upper end of the second body 200, and is also inserted into the upper end of the valve housing 610, which will be described later. can be combined.
  • the lower end of the filter guide 400 may be inserted and coupled into the upper end of the sealing member 300, and the upper end may protrude upward from the sealing member 300. A portion of the upper outer peripheral surface of the filter guide 400 may be surrounded by the filter 500.
  • the filter guide 400 is capable of supporting the filter 500, and allows hydrogen filtered while passing through the filter 500 and flowing into the inside of the filter guide 400 to flow through the third internal flow path 305 of the sealing member 300. ) can be guided to.
  • the filter 500 may filter hydrogen flowing into the first internal passage 105 of the first body 100 from the charging nozzle. Hydrogen flowing into the first internal flow passage 105 of the first body 100 may be filtered while flowing from the outside of the filter 500 toward the inside of the filter 500.
  • the filter 500 may be installed inside the first body 100.
  • the filter 500 may be disposed in the first internal flow path 105.
  • the filter 500 can remove foreign substances from hydrogen flowing into the first body 100.
  • the filter 500 is manufactured in a cylindrical shape by overlapping a plurality of wire meshes with different pore diameters, and may be a sintered filter that filters the charged fuel.
  • the filter 500 overlaps one main mesh with a pore diameter of about 10 ⁇ m and two protective meshes with a pore diameter of about 0.1 to 10 mm and a thickness of about 1 to 2 mm, so that the filter 500 can maintain a temperature of about 1000 to 1200°C.
  • the filter 500 By compression sintering at high temperature, it can be formed into a single sintered mesh filter with a uniform pore diameter of about 10 ⁇ m and a thickness of about 1.3mm.
  • the filter 500 manufactured by overlapping a plurality of wire meshes and compressing and sintering them at high temperature may have excellent porosity and filtration efficiency, heat resistance and corrosion resistance, and excellent strength and durability.
  • the filter 500 may be changed to use a sintered powder filter that is easy to manufacture, simple, and inexpensive instead of a sintered mesh filter.
  • sintered mesh filters do not break or break due to their characteristics, and can maintain overall rigidity even if partial deformation occurs.
  • the filter 500 is a sintered mesh filter manufactured by overlapping a plurality of wire meshes manufactured with different preset pore diameters and compressing and sintering them at high temperature. Through this, the filter 500 has less pore diameter distribution and hydrogen The rigidity of the filter according to the charging environment can be secured.
  • the filter 500 can vary the number of meshes and the pore diameter and thickness of each mesh depending on the characteristics and pressure of the fuel being charged.
  • the sealing member 300, filter guide 400, and filter 500 may be combined with each other to form filter units 300, 400, and 500.
  • the filter 500 may be made of a stainless steel material containing 7 to 15% by weight of nickel (Ni) to counteract hydrogen embrittlement.
  • the filter guide 400 may have a guide portion 410, a cap portion 420, and a fastening portion 430.
  • the guide portion 410 may be formed in a cylindrical shape.
  • the guide unit 410 may penetrate the filter 500. That is, the filter 500 may surround the guide portion 410.
  • the guide unit 410 is disposed inside the filter 500 and may function to prevent deformation of the filter 500 under high pressure conditions.
  • the guide portion 410 may be formed to have a thickness of approximately 1 mm.
  • a plurality of hydrogen inlets 415 may be formed on the circumferential surface of the guide unit 410 through which hydrogen filtered while passing through the filter 500 flows into the interior of the guide unit 410.
  • a plurality of hydrogen inlets 415 may be arranged to be spaced apart from each other in the circumferential direction of the guide portion 410.
  • the plurality of hydrogen inlets 415 may be formed to be long in the vertical direction.
  • the guide unit 410 can smoothly guide hydrogen flowing into the guide unit 410 through the plurality of hydrogen inlets 415 to the third internal flow path 305 of the sealing member 300.
  • the lower end of the guide part 410 may be inserted into the upper end of the sealing member 300 and fastened to the upper end of the sealing member 300. That is, the fastening part 430 may be formed at the lower end of the guide part 410, and may be inserted into the upper end of the sealing member 300 and fastened to the upper end of the sealing member 300.
  • the fastening portion 430 may be formed at the bottom of the guide portion 410 so as not to protrude radially outward from the guide portion 410 . That is, the fastening part 430 may be formed to have a smaller diameter than the guide part 410.
  • the fastening part 430 may be inserted into the internal passage 305 of the sealing member 300 through the upper end of the sealing member 300 and fastened to the sealing member 300.
  • a screw thread may be formed on the outer peripheral surface of the fastening part 430
  • a screw thread that is fastened to the screw thread formed on the outer peripheral surface of the fastening part 430 may be formed on the inner peripheral surface of the upper end of the sealing member 300. The operator can fasten the fastening part 430 and the sealing member 300 by inserting the fastening part 430 into the upper part of the sealing member 300 and rotating it.
  • the cap portion 420 may be formed at the top of the guide portion 410 to protrude radially outward from the guide portion 410. That is, the cap portion 420 may be formed to have a larger diameter than the guide portion 410.
  • the cap portion 420 functions as a guide to guide the hydrogen flowing into the first internal passage 105 of the first body 100 to the outside of the filter 500, thereby preventing the hydrogen flowing into the first internal passage 105 from flowing into the first body 100. It can be filtered by moving from the outside to the inside of the filter 500.
  • the cap portion 420 is formed with an inclined portion 425 whose upper surface, which is the surface facing the top of the first body 100, moves away from the top of the first body 100 as it moves from the center of the cap portion 420 to the outside of the cap portion 420. It can be.
  • a hydrogen flow groove 426 through which hydrogen flowing into the internal flow passage 105 of the first body 100 flows may be formed in the inclined portion 425.
  • the hydrogen flow groove 426 may be formed at a right angle with a surface 426A facing the top of the first body 100 and a surface 426B facing radially outward.
  • the hydrogen flow groove 426 may be formed of a pair of hydrogen flow grooves 426.
  • a pair of hydrogen flow grooves 426 may be disposed on opposite sides of the cap portion 420 based on the center of the cap portion 420.
  • the hydrogen flow groove 426 does not necessarily have to be formed as a pair of hydrogen flow grooves 426, and may be formed as a plurality of hydrogen flow grooves 426 spaced apart from each other in the circumferential direction.
  • the inclined portion 425 may be formed in a shape in which the central portion is convex upward and slopes downward toward the outside in order to minimize the flow resistance of hydrogen.
  • the shape of the inclined portion 425 is not necessarily limited to this, and may be changed to various shapes such as a hemispherical shape convex upward or a semi-elliptical cross-section.
  • the present invention applies a filter 500 in which a plurality of wire meshes are overlapped and compressed and sintered at a high temperature, the guide part 410 is placed inside the filter 500, and the guide part is placed on the top of the filter 500.
  • the cap portion 420 formed at the top of 410 and coupling the sealing member 300 to the lower part of the filter 500 damage to the filter 500 due to hydrogen pressure can be prevented when charging hydrogen. .
  • the present invention completely blocks foreign substances from entering the interior of the receptacle 1, thereby preventing defects in each component due to foreign substances.
  • the valve unit 600 may be installed in the second internal passage 205 of the second body 200.
  • the valve unit 600 can prevent backflow of hydrogen flowing from the filter units 300, 400, and 500 into the second internal flow path 205 of the second body 200.
  • the valve unit 600 can prevent reverse flow of hydrogen flowing from the third internal passage 305 of the sealing member 300 to the second internal passage 205 of the second body 200.
  • the valve unit 600 may include a valve housing 610, an opening and closing member 620, and an elastic member 640.
  • the valve housing 610 may be formed in a cylindrical shape.
  • the lower end of the sealing member 300 may be inserted into the upper end of the valve housing 610.
  • the internal space of the valve housing 610 may be in communication with the internal flow path 305 of the sealing member 300. Accordingly, hydrogen flowing out of the third internal flow passage 305 of the sealing member 300 may flow into the inside of the valve housing 610.
  • the opening and closing member 620 may be disposed in the inner space of the valve housing 610 together with the elastic member 640.
  • the opening and closing member 620 may be supported by an elastic member 640.
  • the opening and closing member 620 allows hydrogen flowing into the second internal passage 205 of the second body 200 from the hydrogen tank to the inside of the valve housing 610 through the bottom opening of the valve housing 610.
  • the opening and closing member 620 may be closed by the pressure of the hydrogen flowing into the inside of the valve housing 610 through the bottom opening of the valve housing 610, and the elastic member 640 is connected to the opening and closing member ( 620) can be assisted by elastic force to achieve a closing operation.
  • FIG. 4 is a view showing the valve housing shown in FIG. 2, and FIG. 5 is a view showing the lower part of FIG. 3.
  • a plurality of hydrogen outlets 615 may be formed on the outer peripheral surface of the valve housing 610.
  • a plurality of hydrogen outlets 615 may be formed to be spaced apart from each other in the circumferential direction of the valve housing 610. Hydrogen flowing into the inside of the valve housing 610 from the third internal passage 305 of the sealing member 300 flows into the second internal passage 205 of the second body 200 through a plurality of hydrogen outlets 615. After being introduced, it can be charged into the vehicle's hydrogen tank through the bottom opening of the second body 200. That is, the plurality of hydrogen outlets 615 can guide hydrogen flowing into the inside of the valve housing 610 from the filter units 300, 400, and 500 to the second internal flow path 205 of the second body 200. there is.
  • the plurality of hydrogen outlets 615 may be formed to be inclined toward the lower end of the second body 200 toward the radial outer side of the valve housing 610 . That is, the plurality of hydrogen outlets 615 are formed inclined in the outlet direction of the second body 200, thereby improving fuel charging efficiency by improving the fluidity of hydrogen injected into the hydrogen tank.
  • the opening and closing member 620 may be disposed in the inner space of the valve housing 610.
  • the opening and closing member 620 may open and close the hydrogen outlet 615 while moving up and down due to the hydrogen pressure difference between the charging nozzle and the hydrogen tank. That is, the opening and closing member 620 can open and close the plurality of hydrogen outlets 615 while moving in the longitudinal direction of the valve housing 610 due to the hydrogen pressure difference between the charging nozzle and the hydrogen tank.
  • the elastic member 640 is disposed in the inner space of the valve housing 610 and can elastically support the opening and closing member 620 in the vertical direction. That is, the elastic member 640 may be disposed within the valve housing 610 to elastically support the opening and closing member 620 in the longitudinal direction of the valve housing 610.
  • the elastic member 640 may be formed as a coil spring. However, the elastic member 640 does not necessarily have to be formed as a coil spring, and may be replaced with a member having elastic force, such as a leaf spring.
  • the opening and closing member 620 may have a horizontal upper surface, which is the surface facing one end of the first body 100, and a sharp protrusion may be formed at the center of the upper surface.
  • the opening and closing member 620 may be formed in a shape with an open bottom.
  • the upper end of the elastic member 640 may be inserted into the opening and closing member 620 through the open lower end of the opening and closing member 620 to support the opening and closing member 620.
  • a seating groove 611 may be formed in the inner space of the valve housing 610 on a surface close to the lower end of the second body 200, and the lower end of the elastic member 640 may be inserted into and supported in the seating groove 611. You can.
  • the opening and closing member 620 has an upper end inserted into the third internal flow path 305 formed at the lower end of the sealing member 300 through the lower opening of the sealing member 300, thereby closing the third internal flow path 305,
  • the hydrogen outlet 615 may be closed by the outer peripheral surface of the opening and closing member 620.
  • the opening and closing member 620 has an upper end exiting from the third internal passage 305 formed at the lower end of the sealing member 300 through the lower opening of the sealing member 300 to open the third internal passage 305.
  • the hydrogen outlet 615 may be open rather than closed by the outer peripheral surface of the opening and closing member 620.
  • the valve housing 610 and the opening and closing member 620 may be made of steel, and the sealing member 300 may be made of rubber. Therefore, when the opening and closing member 620 is operated to open and close, noise may not be generated while contacting the sealing member 300.
  • the bottom of the valve housing 610 is open, and the hydrogen pressure in the hydrogen tank of the vehicle flowing into the second internal flow path 205 of the second body 200 is transmitted through the bottom opening of the valve housing 610 to the valve housing ( 610) may flow into the interior.
  • a communication hole 612 communicating with the seating groove 611 may be formed in the valve housing 610 at an end close to the lower end of the second body 200, and the second body 200 may be connected from the hydrogen tank. Hydrogen flowing into the second internal flow path 205 may flow into the inner space of the valve housing 610 through the communication hole 612 and the seating groove 611, thereby causing the opening and closing member 620 to close.
  • the opening and closing member 620 is normally sealed by the hydrogen pressure in the hydrogen tank of the vehicle flowing into the inside of the valve housing 610 through the communication hole 612 and the seating groove 611 of the valve housing 610.
  • the third internal passage 305 and the hydrogen outlet 615 can be closed by moving upward until the upper end is inserted into the third internal passage 305 formed at the lower end of the member 300, and hydrogen is discharged from the charging nozzle.
  • the hydrogen pressure in the third internal passage 305 of the sealing member 300 rises above the hydrogen pressure in the hydrogen tank of the vehicle, it moves downward to open the third internal passage 305 and the hydrogen outlet 615. You can.
  • a plurality of hydrogen guide grooves 616 may be formed on the outer peripheral surface of the valve housing 610 at the lower end, which is an end close to the lower end of the second body 200.
  • the plurality of hydrogen guide grooves 616 guide hydrogen flowing into the second internal flow path 205 of the second body 200 through the plurality of hydrogen outlets 615 to the inner flow path at the lower end of the second body 200. You can.
  • a plurality of hydrogen guide grooves 616 may be formed to correspond to a plurality of hydrogen outlets 615 in the longitudinal direction of the valve housing 610.
  • a plurality of hydrogen guide grooves 616 formed at the ends of the outer peripheral surface of the valve housing 610 direct hydrogen flowing into the second internal flow path 205 of the second body 200 through the plurality of hydrogen outlets 615 to the second body. Since it is guided to the internal flow path at the other end of (200), the fluidity of hydrogen injected into the hydrogen tank can be further improved, thereby further improving fuel charging efficiency.
  • the plurality of hydrogen guide grooves 616 may be formed to be inclined closer to the radial center of the valve housing 610 as it approaches the lower end of the second body 200.
  • a first inclined surface 201 may be formed on the inner peripheral surface of the second body 200 at a portion corresponding to a plurality of hydrogen outlets 615.
  • the first inclined surface 201 may be formed to be inclined closer to the radial outer side of the second body 200 as it approaches the lower end of the second body 200 .
  • a second inclined surface 202 may be formed on the inner peripheral surface of the second body 200 at a portion corresponding to the plurality of hydrogen guide grooves 616.
  • the second inclined surface 202 may be formed to be inclined closer to the radial inner side of the second body 200 as it moves toward the lower end of the second body 200 .
  • a plane 203 connecting the first inclined surface 201 and the second inclined surface 202 may be formed on the inner peripheral surface of the second body 200.
  • the plane 203 may extend in the longitudinal direction of the second body 200.
  • the fluidity of hydrogen injected into the hydrogen tank is further improved, thereby further improving fuel charging efficiency. It can be improved.
  • Figure 6 is a diagram showing another embodiment of Figure 5.
  • the same reference numerals are assigned to the same components as the above-described embodiments, and detailed description thereof will be omitted, and only the differences will be described.
  • the first inclined surface 201, the second inclined surface 202, and the flat surface 203 are formed on the inner peripheral surface of the second body 200, but in another embodiment of the present invention, the first inclined surface 201, the second inclined surface 202, and the flat surface 203 are formed on the inner peripheral surface of the second body 200.
  • the first inclined surface 201, the second inclined surface 202 and the plane 203 are not formed.
  • first inclined surface 201, the second inclined surface 202, and the plane 203 of the above-described embodiment are not necessarily formed.
  • the assembly process of the hydrogen charging receptacle 1 according to the first embodiment of the present invention configured as described above will be described as follows. However, the assembly process here is only an example, and the assembly order of some components may be changed.
  • the worker installs the first ring 110 in the first installation groove 106 formed on the inner peripheral surface of the upper end of the first body 100, the first backup ring 130 in the second installation groove 107, Install the second ring 120 and the second backup ring 140.
  • the operator passes the guide part 410 of the filter guide 400 through the circular filter 500, wraps the outer peripheral surface of the guide part 410 with the filter 500, and then connects the fastening part of the filter guide 400.
  • (430) is inserted into the upper end of the sealing member 300 and rotated so that the threads formed on the outer peripheral surface of the fastening part 430 are coupled to the threads formed on the upper inner peripheral surface of the sealing member 300, so that the sealing member 300,
  • the filter units 300, 400, and 500, in which the filter guide 400 and the filter 500 are coupled to each other, are assembled.
  • the filter units 300, 400, and 500 are moved upward from the lower part of the first body 100 and inserted into the first internal flow path 105.
  • valve unit 600 into the second internal passage 205 of the second body 200 and installs the valve unit 600 into the second internal passage 205.
  • the upper part of the second body 200 is inserted into the first internal flow passage 105 through the lower opening of the first body 100, and the first body 100 and the second body 200 are coupled to each other, Complete the assembly of the receptacle (1).
  • the first internal passage 105 of the first body 100 In order to charge hydrogen in the hydrogen tank of a hydrogen fuel cell vehicle, when the charging nozzle of the hydrogen charging station is connected to the upper part of the first body 100 to start charging hydrogen, the first internal passage 105 of the first body 100 ) The hydrogen flowing into the inside is filtered through the filter 500, and then passes through the plurality of hydrogen inlets 415 formed in the guide part 410 of the filter guide 400 to the guide part 410 of the filter guide 400. After flowing inside, it flows into the third internal flow path 305 of the sealing member 300.
  • Hydrogen flowing into the third internal flow path 305 of the sealing member 300 presses the opening and closing member 620 of the valve unit 600 downward, and accordingly, the opening and closing member 620 moves downward and closes the sealing member.
  • a plurality of hydrogen outlets 615 formed in the valve housing 610 are opened.
  • the opening and closing member 620 opens the third internal flow path 305 of the sealing member 300 and the plurality of hydrogen outlets 615 of the valve housing 610
  • the inside of the sealing member 300 Hydrogen moves downward and flows into the inside of the valve housing 610, then moves to the second internal flow path 205 of the second body 200 through a plurality of hydrogen outlets 615, and then into the second body ( It is moved to the hydrogen tank of the vehicle through the open bottom of 200) and is filled in the hydrogen tank.
  • the opening and closing member 620 When the hydrogen tank is fully charged, the opening and closing member 620 is opened by the hydrogen pressure of the hydrogen tank flowing into the inside of the valve housing 610 through the bottom opening of the valve housing 610 and the elastic force of the elastic member 640. is moved upward, and the upper end of the opening and closing member 620 is inserted into the third internal passage 305 of the sealing member 300 through the lower end of the sealing member 300 and is in contact with the inner peripheral surface of the lower end of the sealing member 300. By closing the third internal flow path 305 and the plurality of hydrogen outlets 615, hydrogen charging in the hydrogen tank is completed.
  • the cap portion 420 of the filter unit 300, 400, 500 has a surface facing the top of the first body 100. It is formed as an inclined part 425 that moves away from the top of the first body 100 as it goes from the center of the cap part 420 to the outside of the cap part 420, and the internal passage 105 of the first body 100 is located in the inclined part 425. ) Because the hydrogen flow groove 426 is formed through which the hydrogen flowing into the hydrogen tank flows, fuel charging efficiency can be improved by improving the fluidity of the hydrogen injected into the hydrogen tank.
  • the hydrogen charging receptacle 1 has a plurality of hydrogen outlets 615 formed on the outer peripheral surface of the valve housing 610, which have Since it is formed at an angle close to the lower end of the body 200, fuel charging efficiency can be improved by improving the fluidity of hydrogen injected into the hydrogen tank.
  • the receptacle 1 for hydrogen charging according to the first embodiment of the present invention has a plurality of hydrogen guide grooves 616 formed at the end of the outer peripheral surface of the valve housing 610 to provide a second discharge port through a plurality of hydrogen outlets 615. Since the hydrogen flowing into the second internal flow path 205 of the body 200 is guided to the inner flow path at the bottom of the second body 200, the fluidity of the hydrogen injected into the hydrogen tank is further improved, further improving fuel charging efficiency. It can be improved.
  • the receptacle 1 for hydrogen charging according to the first embodiment of the present invention has a first inclined surface 201, a second inclined surface 202, and a flat surface 203 formed on the inner peripheral surface of the second body 200. Therefore, fuel charging efficiency can be further improved by further improving the fluidity of hydrogen injected into the hydrogen tank.
  • Figure 7 is a perspective view showing a receptacle for hydrogen charging according to a second embodiment of the present invention
  • Figure 8 is a side cross-sectional view of Figure 7
  • Figure 9 is a perspective view showing the sealing member, filter guide and filter shown in Figure 8
  • Figure 10 is an exploded perspective view of FIG. 9, and
  • FIG. 11 is a side cross-sectional view of FIG. 9.
  • the receptacle 2 for hydrogen charging according to the second embodiment of the present invention is different from the receptacle 1 for hydrogen charging according to the first embodiment of the present invention described above. can be seen.
  • valve unit 600 of the above-described first embodiment included a valve housing 610, an opening and closing member 620, and an elastic member 640, as shown in FIGS. 2, 3, 5, and 6.
  • the valve unit 600 of the second embodiment may further include a stopper 630 compared to the valve unit 600 of the first embodiment, as shown in FIG. 8.
  • the elastic member 640 of the first embodiment is not shown in FIG. 8, but the elastic member 640 of the first embodiment is also included in the second embodiment.
  • the opening and closing member 620 of the first embodiment described above has an upper surface, which is the surface facing one end of the first body 100, formed as a horizontal surface, and a sharp protrusion is formed at the center of the upper surface.
  • the opening and closing member 620 of the second embodiment has an upper surface, which is the surface facing one end of the first body 100, formed as an inclined portion that moves away from one end of the first body 100 as it goes outward from the center. You can.
  • the lower end of the sealing member 300 of the above-described first embodiment is inserted and coupled into the upper end of the valve housing 610 as shown in FIG. 3, but the lower end of the sealing member 300 of the second embodiment is As shown in FIG. 8, rather than being inserted into the upper end of the valve housing 610, the lower end of the sealing member 300 contacts the upper end of the valve housing 610 and the upper end of the stopper 630.
  • the stopper 630 may be formed in a cylindrical shape.
  • the stopper 630 may be inserted into the upper part of the valve housing 610.
  • the opening and closing member 620 of the above-described first embodiment was in contact with the inner peripheral surface of the lower end of the sealing member 300 when closing the hydrogen outlet 615 as shown in FIGS. 3, 5, and 6, but in the second embodiment of the present invention, As shown in FIG. 8, the opening and closing member 620 may be in contact with the stopper 630 when closing the hydrogen outlet 615.
  • the stopper 630 may be made of rubber. Therefore, the stopper 630 can prevent noise by preventing the opening and closing member 620 from contacting the valve housing 610.
  • FIG. 12 is a diagram showing another embodiment of FIG. 11.
  • the same reference numerals are assigned to the same components as the above-described embodiment shown in FIG. 11, and a detailed description thereof will be omitted, and only the differences will be described.
  • FIG. 12 it can be seen that it is different from the above-described embodiment shown in FIG. 11. That is, in the above-described embodiment shown in FIG. 11, a plurality of hydrogen inlets 415 formed in the guide part 410 are formed to be long up and down, but in the present embodiment shown in FIG. 12, a plurality of hydrogen inlets 415 formed in the guide part 410 are formed. Two hydrogen inlets 416 are formed in a circular shape. Here, the diameter of the plurality of hydrogen inlets 416 may be 5 mm.
  • FIG. 13 is an enlarged view of part A shown in FIG. 11, and FIG. 14 is an enlarged view of part B shown in FIG. 11.
  • a first assembly protrusion 422 may be formed on the edge of the cap portion 420.
  • the first assembly protrusion 422 may be formed on the lower side of the edge of the cap portion 420 to face the guide portion 410.
  • the top of the filter 500 may be assembled between the first assembly protrusion 422 and the guide portion 410.
  • a second assembly protrusion 302 may be formed on the upper edge of the sealing member 300.
  • the second assembly protrusion 302 may be formed on the upper edge of the sealing member to face the guide portion 410.
  • the lower end of the filter 500 may be assembled between the second assembly protrusion 302 and the guide portion 410.
  • the first assembly protrusion 422 and the second assembly protrusion 302 may have a thickness and shape that can be collapsed after the filter 500 is assembled.
  • the filter 500 is not welded to the filter guide 400 and the sealing member 300, but is assembled through the first assembly protrusion 422 and the second assembly protrusion 302, so the filter 500 is not welded to the filter guide 400 and the sealing member 300. It can be easily assembled to the guide 400 and the sealing member 300.
  • the upper outer edge 510 of the filter 500 may be formed in a chamfer shape.
  • the chamfer shape may be an inclined surface.
  • the lower outer edge 520 of the filter 500 may be formed in a round shape.
  • the round shape may be a curved surface that is convex outward.
  • Figure 15 is an enlarged view of part C shown in Figure 11.
  • the outer edge 435 of the end of the fastening portion 430 of the filter guide 400 may be formed in a chamfer shape. Through this, the fastening portion 430 of the filter guide 400 can be easily inserted and assembled into the upper end of the third internal passage 305 of the sealing member 300.
  • Figure 16 is an enlarged view of portion D shown in Figure 8.
  • the upper middle portion 318 of the flange 310 of the sealing member 300 may be formed in a chamfer shape, and a third portion contacting the upper middle portion 318 of the flange 310 may be formed.
  • the middle portion 180 of the internal step 170 of the body 100 may be formed in a chamfer shape.
  • the lower middle portion 319 of the flange 310 may be formed in a chamfer shape
  • the upper middle portion 280 of the second body 200 which is in contact with the lower middle portion 319 of the flange 310, may be formed in a chamfer shape. It may be formed in a chamfer shape. Through this, airtightness to prevent hydrogen leakage can be improved.
  • the upper outer edge 290 of the second body 200 may be formed in a chamfer shape. Through this, the upper end of the second body 200 can be easily inserted into the interior of the first body 100 through the lower end of the first body 100 and assembled.
  • Figure 17 is an enlarged view of portion E shown in Figure 8.
  • a sealing groove 635 may be formed at the top of the stopper 630 of the valve unit 600, and a sealing groove 635 may be formed at the bottom of the sealing member 300. Protrusions 350 may be formed.
  • the sealing groove 635 may be formed continuously in the circumferential direction of the stopper 630, and the sealing protrusion 350 may be formed continuously in the circumferential direction of the sealing member 350. Through this, airtightness to prevent hydrogen leakage can be improved.
  • the first internal passage 105 of the first body 100 In order to charge hydrogen in the hydrogen tank of a hydrogen fuel cell vehicle, when the charging nozzle of the hydrogen charging station is connected to the upper part of the first body 100 to start charging hydrogen, the first internal passage 105 of the first body 100 ) The hydrogen flowing into the inside is filtered through the filter 500, and then passes through the plurality of hydrogen inlets 415 formed in the guide part 410 of the filter guide 400 to the guide part 410 of the filter guide 400. After flowing inside, it flows into the third internal flow path 305 of the sealing member 300.
  • the hydrogen in the stopper 630 moves downward and flows into the interior of the valve housing 610, and then flows into the plurality of hydrogen outlets 615 of the valve housing 610. After being moved to the second internal flow path 205 of the second body 200 through the two hydrogen outlets 615, it is moved to the hydrogen tank through the open bottom of the second body 200 and charged into the hydrogen tank. do.
  • the opening and closing member 620 When the hydrogen tank is filled with hydrogen, the opening and closing member 620 is moved upward by the hydrogen pressure of the hydrogen tank flowing into the inside of the valve housing 610 through the bottom opening of the valve housing 610, and the opening and closing member 620 is moved upward.
  • the upper end of (620) is inserted into the interior of the stopper 630 through the lower end of the stopper 630 and contacts the lower inner peripheral surface of the stopper 630 to close the plurality of hydrogen outlets 615, thereby charging hydrogen into the hydrogen tank. will be completed.
  • the upper end of the filter 500 is attached to the edge of the cap portion 420 of the filter guide 400 and the guide portion of the filter guide 400 ( It is assembled between the first assembly protrusion 422 formed to face the guide part 410 and the guide part 410, and the lower end of the filter 500 is formed to face the guide part 410 on the upper edge of the sealing member 300. 2 Since it is assembled between the assembly protrusion 302 and the guide portion 410, the filter 500 can be easily assembled to the filter guide 400 and the sealing member 300.
  • the receptacle 2 for hydrogen charging according to the second embodiment of the present invention improves the assembly of each component because the connection or contact portion of each component is formed in a chamfer shape or a round shape. It can be.
  • the upper middle portion 318 of the flange 310 formed on the sealing member 300 is formed in a chamfer shape, and the flange 310 has a chamfered shape.
  • the middle portion 180 of the internal step 170 of the first body 100, which is in contact with the upper middle portion 318, is formed in a chamfer shape, and the lower middle portion 319 of the flange 310 is formed in a chamfer shape.
  • the upper middle part 280 of the second body 200 which is in contact with the lower middle part 319 of the flange 310, is formed in a chamfer shape, airtightness to prevent hydrogen leakage can be improved.
  • the receptacle 2 for hydrogen charging according to the second embodiment of the present invention has a sealing groove 635 formed in the stopper 630 of the valve unit 600, and a sealing groove 635 in the sealing member 300. ) Because the sealing protrusion 350 inserted into the is formed, airtightness to prevent hydrogen leakage can be improved.
  • the present invention has been described limited to the hydrogen charging receptacles 1 and 2 used in hydrogen fuel cell vehicles, but the present invention is not necessarily limited thereto, and is not limited to high pressure gas fuel such as LPG. It can also be used as a receptacle installed in the fuel tank of various gas vehicles for charging.
  • the present invention provides a hydrogen charging receptacle that can improve fuel charging efficiency by improving the fluidity of hydrogen injected into a hydrogen tank, facilitates assembly of the filter, and has improved airtightness to prevent hydrogen leakage.

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
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Abstract

Dans un réceptacle pour charger de l'hydrogène, selon la présente invention, une partie de capuchon d'une unité de filtre a une surface faisant face à une extrémité d'un premier corps, formée sous la forme d'une partie inclinée qui est éloignée de la première extrémité du premier corps lorsqu'elle passe du centre de la partie de capuchon à l'extérieur de la partie de capuchon, et une rainure d'écoulement d'hydrogène à travers laquelle s'écoule l'hydrogène s'écoulant dans le trajet d'écoulement interne du premier corps est formée à l'intérieur de la partie inclinée, et ainsi il existe un avantage dans l'amélioration de l'efficacité de charge de carburant en améliorant l'aptitude à l'écoulement d'hydrogène injecté dans le réservoir d'hydrogène.
PCT/KR2023/010455 2022-07-26 2023-07-20 Réceptacle pour charger de l'hydrogène WO2024025246A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2022-0092125 2022-07-26
KR1020220092124A KR20240014681A (ko) 2022-07-26 2022-07-26 수소 충전용 리셉터클
KR1020220092125A KR20240014682A (ko) 2022-07-26 2022-07-26 수소 충전용 리셉터클
KR10-2022-0092124 2022-07-26

Publications (1)

Publication Number Publication Date
WO2024025246A1 true WO2024025246A1 (fr) 2024-02-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8342202B2 (en) * 2007-03-22 2013-01-01 Nitto Kohki Co., Ltd. Pipe coupling member for high-pressure fluid
KR20160056814A (ko) * 2014-11-12 2016-05-20 도요타지도샤가부시키가이샤 역지 밸브 및 리셉터클 구조
KR101907886B1 (ko) * 2017-06-07 2018-10-17 (주)모토닉 수소 연료전지 차량용 리셉터클
KR102336331B1 (ko) * 2020-07-31 2021-12-09 (주)모토닉 수소 연료전지 차량용 리셉터클
KR20220028337A (ko) * 2020-08-28 2022-03-08 부산대학교 산학협력단 수소 브레이크어웨이 디바이스

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8342202B2 (en) * 2007-03-22 2013-01-01 Nitto Kohki Co., Ltd. Pipe coupling member for high-pressure fluid
KR20160056814A (ko) * 2014-11-12 2016-05-20 도요타지도샤가부시키가이샤 역지 밸브 및 리셉터클 구조
KR101907886B1 (ko) * 2017-06-07 2018-10-17 (주)모토닉 수소 연료전지 차량용 리셉터클
KR102336331B1 (ko) * 2020-07-31 2021-12-09 (주)모토닉 수소 연료전지 차량용 리셉터클
KR20220028337A (ko) * 2020-08-28 2022-03-08 부산대학교 산학협력단 수소 브레이크어웨이 디바이스

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