KR102239701B1 - Plastic tank - Google Patents

Plastic tank Download PDF

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KR102239701B1
KR102239701B1 KR1020190139948A KR20190139948A KR102239701B1 KR 102239701 B1 KR102239701 B1 KR 102239701B1 KR 1020190139948 A KR1020190139948 A KR 1020190139948A KR 20190139948 A KR20190139948 A KR 20190139948A KR 102239701 B1 KR102239701 B1 KR 102239701B1
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South Korea
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fusion
upper shell
lower shell
bead
shell
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KR1020190139948A
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Korean (ko)
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고세훈
기광택
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(주)동희산업
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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
    • B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
    • 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
    • B60K2015/03486—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from
    • B60K2015/03493—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from made of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a plastic tank, which has a configuration that a fusion protrusion of an upper shell and a lower shell constituting the plastic tank are thermally bonded to each other to form an inner surface of the tank. Accordingly, as a notch of an inner bead formed by the bonding of the fusion protrusion is formed to be located inside the tank with respect to an inner surface of the upper shell and an inner surface of the lower shell, it is possible to prevent damage or breakage to the inner surface of the plastic tank due to cracks in the notch.

Description

플라스틱 탱크{PLASTIC TANK}Plastic tank {PLASTIC TANK}

본 발명은 플라스틱 탱크에 관한 것으로, 보다 상세하게는 플라스틱 탱크를 구성하는 상부쉘 및 하부쉘이 열융착으로 결합된 플라스틱 탱크에 관한 기술이다.The present invention relates to a plastic tank, and more particularly, to a plastic tank in which the upper shell and the lower shell constituting the plastic tank are bonded by thermal fusion.

일반적으로, 차량에는 연료가 저장되는 연료탱크, 와셔액을 저장하는 와셔액탱크가 구비되고, 디젤차량에는 연료탱크 및 와셔액탱크와 함께 요소수를 저장하는 요소수탱크가 함께 구비된다.In general, a vehicle is provided with a fuel tank for storing fuel and a washer liquid tank for storing a washer liquid, and a diesel vehicle is provided with a fuel tank and a washer liquid tank together with a urea water tank for storing urea water.

상기와 같이 연료 또는 요소수를 저장하는 탱크는 재질이 스틸(steel)인 것과 플라스틱(plastic)인 것이 있고, 최근에는 중량감소 및 연비향상을 위해 플라스틱 탱크의 사용이 증가하고 있는 추세이다.As described above, tanks for storing fuel or urea water are made of steel and plastic, and in recent years, the use of plastic tanks is increasing to reduce weight and improve fuel efficiency.

플라스틱 탱크는 패리슨을 금형에 넣고 패리슨의 내부로 고압의 에어를 불어넣어서 패리슨을 탱크의 형상으로 성형하는 블로잉 공정을 통해 제작되었으나, 최근에는 작업능률을 높이기 위하여 플라스틱 사출성형으로 제작하는 방안이 증가하고 있다.The plastic tank was manufactured through a blowing process in which the parison was put into a mold and high-pressure air was blown into the parison to shape the parison into the shape of a tank. Is increasing.

사출성형은 상부쉘과 하부쉘을 분할 제작된 후, 상부쉘과 하부쉘을 서로 열융착으로 결합함에 따라 플라스틱 탱크의 제작이 완료되는 기술이다.Injection molding is a technology in which the manufacturing of a plastic tank is completed by dividing the upper shell and the lower shell and then bonding the upper and lower shells to each other by thermal fusion.

사출성형으로 플라스틱 탱크의 제작시 상부쉘과 하부쉘의 결합부위에 각각 융착돌기와 융착홈이 형성되고, 융착돌기가 열에 의해 녹으면서 서로 열융착으로 결합되고, 또한 융착돌기의 용융물이 융착홈을 채우게 됨에 따라 상부쉘과 하부쉘이 서로 열융착으로 결합되게 된다.When manufacturing a plastic tank by injection molding, a fusion protrusion and a fusion groove are formed at the joints of the upper shell and the lower shell, respectively, and the fusion protrusions are combined by thermal fusion as they melt by heat, and the melt of the fusion protrusion fills the fusion groove. As a result, the upper shell and the lower shell are bonded to each other by thermal fusion.

한편, 상부쉘의 융착홈 및 하부쉘의 융착홈이 탱크의 안쪽면과 연결되도록 형성된 경우, 탱크의 안쪽면과 연결된 융착홈에 비드(융착돌기의 용융물이 응고된 물질)가 채워지고, 이때 비드에 형성된 노치(notch)가 탱크의 안쪽면의 내측 두께부에 위치하게 되고, 이로 인해 노치에 응력이 집중됨에 따라 탱크의 안쪽면에서부터 크랙(crack)이 발생되어 탱크가 손상 및 파손되는 단점이 있다.On the other hand, when the fusion groove of the upper shell and the fusion groove of the lower shell are formed to be connected to the inner surface of the tank, a bead (a material in which the melt of the fusion protrusion is solidified) is filled in the fusion groove connected to the inner surface of the tank. The notch formed in the tank is located in the inner thickness of the inner surface of the tank, and as a result of this, as the stress is concentrated in the notch, a crack is generated from the inner surface of the tank, resulting in damage and damage to the tank. .

상부쉘의 융착돌기와 하부쉘의 융착돌기가 서로 맞대어진 상태로 열융착으로 결합될 때에, 상부쉘의 융착돌기에 의해 형성된 비드 및 하부쉘의 융착돌기에 의해 형성된 비드는 이중으로 중첩된 더블비드(double bead) 모양으로 형성되고, 더블비드사이의 오목한 부위가 응력이 집중되는 노치가 된다.When the fusion protrusions of the upper shell and the fusion protrusions of the lower shell are bonded by thermal fusion in a butted state, the bead formed by the fusion protrusions of the upper shell and the bead formed by the fusion protrusions of the lower shell are double beads ( It is formed in the shape of double bead), and the concave area between the double bead becomes a notch where stress is concentrated.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

대한민국공개특허공보 10-2018-0075749호Korean Patent Application Publication No. 10-2018-0075749

본 발명은 상부쉘과 하부쉘이 열융착으로 결합된 플라스틱 탱크로서, 상부쉘의 융착홈 및 하부쉘의 융착홈이 탱크의 안쪽면과 연결되지 않는 구성으로, 이를 통해 상부쉘의 융착돌기와 하부쉘의 융착돌기가 열융착으로 결합시 탱크의 안쪽면의 내측에 비드에 의한 노치가 위치하는 것을 방지해서, 노치로 인한 탱크의 손상 및 파손을 방지할 수 있도록 하는 데에 그 목적이 있다.The present invention is a plastic tank in which an upper shell and a lower shell are thermally fused, and the fusion groove of the upper shell and the fusion groove of the lower shell are not connected to the inner surface of the tank. The purpose is to prevent the notch by the bead from being located on the inside of the inner surface of the tank when the fusion protrusion of is combined by thermal fusion, so that damage and damage to the tank due to the notch can be prevented.

상기한 바의 목적을 달성하기 위한 본 발명은, 상부쉘 융착돌기와 상부쉘 융착홈이 형성된 상부쉘; 및 하부쉘 융착돌기와 하부쉘 융착홈이 형성된 하부쉘을 포함하고; 상부쉘 융착홈과 하부쉘 융착홈은 각각 상부쉘의 안쪽면 및 하부쉘의 안쪽면과의 연결이 없도록 형성되고; 상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 내측비드는 상부쉘의 안쪽면 및 하부쉘의 안쪽면에서 탱크의 내측으로 돌출되게 형성된 것을 특징으로 한다.The present invention for achieving the object of the above, the upper shell formed with the upper shell fusion protrusion and the upper shell fusion groove; And a lower shell in which a lower shell fusion protrusion and a lower shell fusion groove are formed; The upper shell fusion groove and the lower shell fusion groove are formed so that there is no connection between the inner surface of the upper shell and the inner surface of the lower shell, respectively; The inner bead produced as the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other by heat fusion is characterized in that the inner bead is formed to protrude from the inner surface of the upper shell and the inner surface of the lower shell to the inside of the tank.

내측비드는 상부쉘 융착돌기의 용융에 의해 형성된 일측비드 및 하부쉘 융착돌기의 용융에 의해 형성된 타측비드가 중첩된 더블비드 모양으로 형성된 것을 특징으로 한다.The inner bead is characterized in that it is formed in a double bead shape in which one bead formed by melting of the upper shell fusion protrusion and the other bead formed by melting of the lower shell fusion protrusion are overlapped.

내측비드는 일측비드와 타측비드 사이에 형성된 노치가 상부쉘의 안쪽면 및 하부쉘의 안쪽면을 기준으로 탱크의 내측에 위치하도록 형성된 것을 특징으로 한다.The inner bead is characterized in that the notch formed between the one side bead and the other side bead is formed to be positioned inside the tank with respect to the inner surface of the upper shell and the inner surface of the lower shell.

상부쉘 융착홈과 하부쉘 융착홈은 각각 상부쉘의 바깥면 및 하부쉘의 바깥면과 단차지게 연결된 상부쉘 외측홈 및 하부쉘 외측홈을 포함하고; 상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 외측비드는 상부쉘 외측홈 및 하부쉘 외측홈을 채우면서 상부쉘과 하부쉘을 결합시키는 것을 특징으로 한다.The upper shell fusion groove and the lower shell fusion groove each include an upper shell outer groove and a lower shell outer groove stepwisely connected to the outer surface of the upper shell and the outer surface of the lower shell; The outer bead generated as the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other by thermal fusion is characterized in that the upper shell and the lower shell are joined while filling the upper shell outer groove and the lower shell outer groove.

외측비드는 상부쉘 융착돌기의 용융에 의해 형성된 일측비드 및 하부쉘 융착돌기의 용융에 의해 형성된 타측비드가 중첩된 더블비드 모양으로 형성된 것을 특징으로 한다.The outer bead is characterized in that it is formed in a double bead shape in which one bead formed by melting of the upper shell fusion protrusion and the other bead formed by melting of the lower shell fusion protrusion are overlapped.

외측비드는 일측비드와 타측비드사이에 형성된 노치가 상부쉘 외측홈 및 하부쉘 외측홈속에 위치하도록 형성된 것을 특징으로 한다.The outer bead is characterized in that the notch formed between the one side bead and the other side bead is formed to be located in the upper shell outer groove and the lower shell outer groove.

상부쉘 융착홈은 상부쉘의 안쪽면과 바깥면사이에 위치하도록 형성된 상부쉘 중간홈을 포함하고; 하부쉘 융착홈은 하부쉘의 안쪽면과 바깥면사이에 위치하도록 형성된 하부쉘 중간홈을 포함하며; 상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 중간비드는 상부쉘 중간홈 및 하부쉘 중간홈을 채우면서 상부쉘과 하부쉘을 결합시키는 것을 특징으로 한다.The upper shell fusion groove includes an upper shell intermediate groove formed to be located between the inner surface and the outer surface of the upper shell; The lower shell fusion groove includes a lower shell intermediate groove formed to be positioned between the inner surface and the outer surface of the lower shell; The intermediate bead generated as the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other by thermal fusion is characterized in that the upper shell and the lower shell are joined while filling the upper shell intermediate groove and the lower shell intermediate groove.

상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합될 때에 상부쉘 융착돌기 및 하부쉘 융착돌기가 탱크의 내면을 형성하는 것을 특징으로 한다.When the upper shell fusion protrusion and the lower shell fusion protrusion are thermally fused to each other, the upper shell fusion protrusion and the lower shell fusion protrusion form the inner surface of the tank.

본 발명에 따른 플라스틱 탱크는, 상부쉘 및 하부쉘의 안쪽면이 융착홈과 연결됨이 없도록 형성되고, 상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합되어 탱크의 안쪽면을 형성하는 구성으로, 이를 통해 내측비드의 노치가 상부쉘 및 하부쉘의 안쪽면의 내측에 위치하도록 형성됨에 따라, 노치에 발생된 집중응력이 탱크의 안쪽면에 영향을 주지 않게 되고, 이 결과 플라스틱 탱크의 안쪽면이 노치의 크랙으로 인해 손상되거나 파손되는 현상을 방지할 수 있는 효과가 있다.The plastic tank according to the present invention is formed so that the inner surfaces of the upper shell and the lower shell are not connected to the fusion groove, and the upper shell fusion protrusion and the lower shell fusion protrusion are thermally fused to each other to form the inner surface of the tank. , As the notch of the inner bead is formed to be located inside the inner surface of the upper shell and the lower shell through this, the concentrated stress generated in the notch does not affect the inner surface of the tank. As a result, the inner surface of the plastic tank There is an effect of preventing damage or breakage due to cracks in this notch.

도 1은 본 발명의 실시예에 따른 플라스틱 탱크의 사시도,
도 2와 도 3은 도 1의 Ⅰ-Ⅰ선 단면도로서, 도 2는 열융착으로 결합전 상태의 도면이고, 도 3은 열융착으로 결합된 후의 도면이다.1 is a perspective view of a plastic tank according to an embodiment of the present invention,
2 and 3 are cross-sectional views taken along the line Ⅰ-Ⅰ of FIG. 1, FIG. 2 is a view of a state before bonding by thermal fusion, and FIG. 3 is a view after bonding by thermal fusion.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예에 따른 플라스틱 탱크(1000)에 대해 살펴보기로 한다.Hereinafter, a plastic tank 1000 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

본 발명의 플라스틱 탱크(1000)는 사출성형을 통해 상부쉘(100)과 하부쉘(200)로 제작되고, 상부쉘(100)과 하부쉘(200)이 결합하여 탱크(1000)를 이룬다.The plastic tank 1000 of the present invention is made of an upper shell 100 and a lower shell 200 through injection molding, and the upper shell 100 and the lower shell 200 are combined to form the tank 1000.

본 발명의 실시예에 따라 플라스틱 탱크(1000)는 도 1 내지 도 3에 도시된 바와 같이 상부쉘 융착돌기(110) 및 상부쉘 융착홈(120)이 형성된 상부쉘(100) 및 하부쉘 융착돌기(210) 및 하부쉘 융착홈(220)이 형성된 하부쉘(200)을 포함하고, 융착돌기는 서로 열융착되어 상부쉘(100)과 하부쉘(200)을 결합시킨다. 융착돌기는 열융착 시에 용융되어 용융물은 비드(300)를 형성하고 비드(300)는 융착홈(120, 220)을 채우면서 상부쉘(100)과 하부쉘(200)을 결합시킨다.According to an embodiment of the present invention, the plastic tank 1000 includes an upper shell 100 and a lower shell fusion protrusion having an upper shell fusion protrusion 110 and an upper shell fusion groove 120 as shown in FIGS. 1 to 3. 210 and a lower shell 200 in which the lower shell fusion groove 220 is formed, and the fusion protrusions are thermally fused to each other to couple the upper shell 100 and the lower shell 200. The fusion protrusion is melted during thermal fusion so that the molten material forms the bead 300 and the bead 300 fills the fusion grooves 120 and 220 and couples the upper shell 100 and the lower shell 200.

이를 통해 상부쉘(100) 및 하부쉘(200)이 일체로 결합되어 내부의 물질이 외부로 새어 나가지 않도록 단단히 결합된다.Through this, the upper shell 100 and the lower shell 200 are integrally coupled to be tightly coupled so that the material inside does not leak out.

상부쉘 융착홈(120)과 하부쉘 융착홈(220)은 각각 상부쉘(100)의 안쪽면(10) 및 하부쉘(200)의 안쪽면(10)과의 연결이 없도록 형성되고, 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 서로 열융착으로 결합됨에 따라 생성된 내측비드(310)는 상부쉘(100)의 안쪽면(10) 및 하부쉘(200)의 안쪽면(10)에서 탱크(1000)의 내측으로 돌출되게 형성될 수 있다.The upper shell fusion groove 120 and the lower shell fusion groove 220 are formed so as not to be connected to the inner surface 10 of the upper shell 100 and the inner surface 10 of the lower shell 200, respectively, and the upper shell The inner bead 310 generated as the fusion protrusion 110 and the lower shell fusion protrusion 210 are coupled to each other by thermal fusion is the inner surface 10 of the upper shell 100 and the inner surface of the lower shell 200 ( It may be formed to protrude from the inside of the tank 1000 in 10).

즉, 상부쉘(100) 및 하부쉘(200)의 안쪽면(10)은 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 안쪽면(10)에서 연장되게 형성되어 열융착으로 결합시 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)은 플라스틱 탱크(1000)의 안쪽면(10)을 형성하게 된다.That is, in the inner surface 10 of the upper shell 100 and the lower shell 200, the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 are formed to extend from the inner surface 10 and are combined by thermal fusion. At the time, the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 form the inner surface 10 of the plastic tank 1000.

융착돌기(110,210)의 결합후에 플라스틱 탱크(1000)의 안쪽면(10)에서 내측으로 돌출되는 융착돌기(110,210)의 용융물인 내측비드(310)는 상부쉘 융착돌기(110)의 용융에 의해 형성된 일측비드(311) 및 하부쉘 융착돌기(210)의 용융에 의해 형성된 타측비드(312)가 상하로 중첩된 더블비드 모양으로 형성될 수 있다.The inner bead 310, which is a melt of the fusion protrusions 110 and 210, protruding inward from the inner surface 10 of the plastic tank 1000 after bonding of the fusion protrusions 110 and 210 is formed by melting of the upper shell fusion protrusion 110 One bead 311 and the other side bead 312 formed by melting of the lower shell fusion protrusion 210 may be formed in a double bead shape overlapping vertically.

따라서, 일측비드(311)와 타측비드(312)의 열융착으로 결합되어 상부쉘(100)과 하부쉘(200)의 결합력을 강화할 수 있는 효과가 있다.Accordingly, the bonding between the one side bead 311 and the other side bead 312 is combined by thermal fusion, thereby enhancing the bonding force between the upper shell 100 and the lower shell 200.

또한, 내측비드(310)는 일측비드(311)와 타측비드(312) 사이에 형성된 노치(313)가 상부쉘(100)의 안쪽면(10) 및 하부쉘(200)의 안쪽면(10)을 기준으로 탱크(1000)의 내측에 위치한다.In addition, the inner bead 310 has a notch 313 formed between the one side bead 311 and the other side bead 312, the inner surface 10 of the upper shell 100 and the inner surface 10 of the lower shell 200 It is located inside the tank 1000 on the basis of.

종래의 플라스틱 탱크(1000)는 안쪽면(10)에 융착홈(120,220)이 연결되고 융착홈(120,220) 내부에 내측비드(310)가 위치하여 결합된다. 이와 같이 결합되면 탱크의 안쪽면(10)의 내측으로 위치한 노치(313)에 응력이 집중될 경우 노치에서 크랙이 발생하게 되고, 이럴 경우 탱크(1000)의 안쪽면(10)에서 노치(313)에 의한 크랙이 발생되어 플라스틱 탱크(1000)의 파손을 유발하게 된다.In the conventional plastic tank 1000, the fusion grooves 120 and 220 are connected to the inner surface 10, and the inner bead 310 is positioned and coupled to the inside of the fusion grooves 120 and 220. When combined in this way, when stress is concentrated in the notch 313 located inside the inner surface 10 of the tank, a crack occurs in the notch. In this case, the notch 313 in the inner surface 10 of the tank 1000 Cracks are generated due to the occurrence of damage to the plastic tank 1000 is caused.

따라서, 본 발명은 상부쉘(100) 및 하부쉘(200)의 안쪽면(10)은 융착홈(120,220)과 연결됨이 없도록 형성하고, 대신에 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 서로 열융착으로 결합되어서 탱크(1000)의 안쪽면(10)을 형성하는 구성으로, 이를 통해 상부쉘 융착돌기(110)에 의해 형성된 일측비드(311)와 하부쉘 융착돌기(210)에 의해 형성된 타측비드(312)사이의 노치(313)가 상부쉘(100)의 안쪽면(10) 및 하부쉘(200)의 안쪽면(10)을 기준으로 탱크(1000)의 내측에 위치하도록 형성된다.Therefore, in the present invention, the inner surface 10 of the upper shell 100 and the lower shell 200 is formed so as not to be connected to the fusion grooves 120 and 220, and instead, the upper shell fusion protrusion 110 and the lower shell fusion protrusion ( 210 is a configuration in which the inner surface 10 of the tank 1000 is formed by being coupled to each other by thermal fusion, through which one side bead 311 and the lower shell fusion protrusion 210 formed by the upper shell fusion protrusion 110 The notch 313 between the other side bead 312 formed by is positioned inside the tank 1000 with respect to the inner surface 10 of the upper shell 100 and the inner surface 10 of the lower shell 200. Is formed.

전술한 바와 같이 일측비드(311)와 타측비드(312)사이의 노치(313)가 상부쉘(100)의 안쪽면(10) 및 하부쉘(200)의 안쪽면(10)을 기준으로 탱크(1000)의 내측에 위치하도록 형성되면, 외력에 의해 노치(313)에 응력이 집중되더라도 노치(313)에 의한 집중응력이 탱크(1000)의 내면에 영향을 주지 않게 되는 바, 따라서 본 발명에 따른 실시예는 노치(313)에 의한 크랙으로 플라스틱 탱크(1000)의 안쪽면(10)이 손상되거나 파손되는 현상을 방지할 수 있는 장점이 있다.As described above, the notch 313 between the one side bead 311 and the other side bead 312 is based on the inner surface 10 of the upper shell 100 and the inner surface 10 of the lower shell 200. 1000), even if the stress is concentrated in the notch 313 by an external force, the concentrated stress by the notch 313 does not affect the inner surface of the tank 1000, according to the present invention. The embodiment has the advantage of preventing a phenomenon in which the inner surface 10 of the plastic tank 1000 is damaged or damaged due to a crack caused by the notch 313.

상부쉘 융착홈(120)과 하부쉘 융착홈(220)은 각각 상부쉘(100)의 바깥면(20)및 하부쉘(200)의 바깥면(20)과 단차지게 연결된 상부쉘 외측홈(121) 및 하부쉘 외측홈(221)을 포함하고, 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 서로 열융착으로 결합됨에 따라 생성된 외측비드(320)는 상부쉘 외측홈(121) 및 하부쉘 외측홈(221)을 채우면서 상부쉘(100)과 하부쉘(200)을 결합시킨다.The upper shell fusion groove 120 and the lower shell fusion groove 220 are respectively connected to the outer surface 20 of the upper shell 100 and the outer surface 20 of the lower shell 200 stepwisely connected to the upper shell outer groove 121 ) And a lower shell outer groove 221, and the outer bead 320 generated as the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 are coupled to each other by thermal fusion, the upper shell outer groove 121 ) And the upper shell 100 and the lower shell 200 while filling the outer groove 221.

이에 따라 외측비드(320)가 상부쉘 외측홈(121) 및 하부쉘 외측홈(221)의 내부에 위치함으로써 바깥면(20)의 외측으로 외측비드(320)의 노출을 최대한 감소하여 외관미 향상의 효과가 있다.Accordingly, the outer bead 320 is located inside the upper shell outer groove 121 and the lower shell outer groove 221, thereby reducing the exposure of the outer bead 320 to the outside of the outer surface 20 as much as possible to improve the appearance Has the effect of.

외측비드(320) 또한 일측비드(321) 및 타측비드(322)로 구성되어 상하로 중첩된 더블비드 모양으로 형성되어 상부쉘(100) 및 하부쉘(200)의 결합을 강화할 수 있는 효과가 있다.The outer bead 320 is also composed of one side bead 321 and the other side bead 322 and is formed in a double bead shape overlapping vertically, so that the combination of the upper shell 100 and the lower shell 200 can be strengthened. .

외측비드(320)가 더블비드 모양으로 형성되므로 외측비드(320)에도 노치(323)가 존재한다.Since the outer bead 320 is formed in a double bead shape, a notch 323 is also present in the outer bead 320.

따라서 노치에 응력이 집중되어 크랙이 발생하더라도 외측비드(320)에 형성된 노치는 외부로 노출된 부위이므로 크랙 발생 부분은 작업자가 쉽게 보수가 가능하다.Therefore, even if the stress is concentrated in the notch and cracks are generated, the notch formed in the outer bead 320 is a part exposed to the outside, so that the cracking part can be easily repaired by an operator.

다만, 외측비드(320)가 상부쉘 외측홈(121) 및 하부쉘 외측홈(221)의 외부로 노출되어 탱크(1000)의 바깥면(20)의 외측으로 과다하게 노출되면 외관미가 나빠지고, 이를 에방하기 위해서는 후공정을 통해 탱크(1000)의 바깥면(20)의 외측으로 노출된 비드(300)를 제거해야 하며, 이럴 경우 가공비 및 작업시간이 과다 소요되는 단점이 있는 바, 이를 예방하기 위해 최대한 외측비드(310)를 상부쉘 외측홈(121) 및 하부쉘 외측홈(221)의 내부로 위치되게 해서 외관미 향상을 도모할 수 있도록 한 것이다.However, when the outer bead 320 is exposed to the outside of the upper shell outer groove 121 and the lower shell outer groove 221 and is excessively exposed to the outside of the outer surface 20 of the tank 1000, the appearance deteriorates, To prevent this, it is necessary to remove the bead 300 exposed to the outside of the outer surface 20 of the tank 1000 through a post process, and in this case, there is a disadvantage that processing cost and working time are excessive, and this is to prevent this. For this purpose, the outer bead 310 is positioned inside the upper shell outer groove 121 and the lower shell outer groove 221 to improve appearance.

상부쉘 융착홈(120)은 상부쉘(100)의 안쪽면(10)과 바깥면(20) 사이에 위치하도록 형성된 상부쉘 중간홈(121)을 포함하고, 하부쉘 융착홈(220)은 하부쉘(200)의 안쪽면(10)과 바깥면(20) 사이에 위치하도록 형성된 하부쉘 중간홈(222)을 포함하며, 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 서로 열융착으로 결합됨에 따라 생성된 중간비드(330)는 상부쉘 중간홈(121) 및 하부쉘 중간홈(222)을 채우면서 상부쉘(100)과 하부쉘(200)을 결합시킬 수 있다.The upper shell fusion groove 120 includes an upper shell intermediate groove 121 formed to be located between the inner surface 10 and the outer surface 20 of the upper shell 100, and the lower shell fusion groove 220 is Includes a lower shell intermediate groove 222 formed to be positioned between the inner surface 10 and the outer surface 20 of the shell 200, the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 The intermediate bead 330 generated as it is coupled by fusion may couple the upper shell 100 and the lower shell 200 while filling the upper shell intermediate groove 121 and the lower shell intermediate groove 222.

따라서, 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 열융착되면서 비드(300)를 형성하고, 비드(300)는 플라스틱 탱크(1000)의 안쪽면(10) 및 중간 및 바깥쪽의 상부쉘 융착홈(120)과 하부쉘 융착홈(220)에 위치하여 이를 통해 상부쉘(100)과 하부쉘(200)의 결합부위를 빈틈없이 강하게 결합시킬 수 있는 장점 있다.Therefore, the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 are thermally fused to form a bead 300, and the bead 300 is formed on the inner surface 10 and the middle and outer sides of the plastic tank 1000 It is located in the upper shell fusion groove 120 and the lower shell fusion groove 220 of the upper shell 100 and the lower shell 200 through this has the advantage of being able to strongly couple the coupling portion of the upper shell 100 and the lower shell 200 tightly.

또한, 상부쉘 융착돌기(110)와 하부쉘 융착돌기(210)가 서로 열융착으로 결합될때 상부쉘 융착돌기(110) 및 하부쉘 융착돌기(210)가 탱크(1000)의 안쪽면(10)을 형성함으로써 탱크(1000) 내면의 응력을 지지할 수 있는 장점이 있다.In addition, when the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 are coupled to each other by thermal fusion, the upper shell fusion protrusion 110 and the lower shell fusion protrusion 210 are formed on the inner surface 10 of the tank 1000. There is an advantage of supporting the stress on the inner surface of the tank 1000 by forming the.

발명의 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.Although shown and described in relation to specific embodiments of the invention, it is common in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the invention provided by the following claims. It will be self-evident to those who have the knowledge of.

10 : 안쪽면 20 : 바깥면
100 : 상부쉘 110 : 상부쉘 융착돌기
120 : 상부쉘 융착홈 121 : 상부쉘 외측홈
122 : 상부쉘 중간홈 200 : 하부쉘
210 : 하부쉘 융착돌기 220 : 하부쉘 융착홈
221 : 하부쉘 외측홈 222 : 하부쉘 중간홈
300 : 비드 310 : 내측비드
311 : 일측비드 312 : 타측비드
313 : 노치 320 : 외측비드
321 : 일측비드 322 : 타측비드
323 : 노치 330 : 중간비드
1000 : 탱크10: inner surface 20: outer surface
100: upper shell 110: upper shell fusion protrusion
120: upper shell fusion groove 121: upper shell outer groove
122: upper shell middle groove 200: lower shell
210: lower shell fusion protrusion 220: lower shell fusion groove
221: lower shell outer groove 222: lower shell middle groove
300: bead 310: inner bead
311: one side bead 312: the other side bead
313: notch 320: outer bead
321: one side bead 322: the other side bead
323: notch 330: middle bead
1000: tank

Claims (8)

상부쉘 융착돌기와 상부쉘 융착홈이 형성된 상부쉘; 및
하부쉘 융착돌기와 하부쉘 융착홈이 형성된 하부쉘을 포함하고;
상부쉘 융착홈과 하부쉘 융착홈은 각각 상부쉘의 안쪽면 및 하부쉘의 안쪽면과의 연결이 없도록 형성되고;
상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 내측비드는 상부쉘의 안쪽면 및 하부쉘의 안쪽면에서 탱크의 내측으로 돌출되게 형성되며,
상부쉘 융착홈과 하부쉘 융착홈은 각각 상부쉘의 바깥면 및 하부쉘의 바깥면과 단차지게 연결된 상부쉘 외측홈 및 하부쉘 외측홈을 포함하고;
상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 외측비드는 상부쉘 외측홈 및 하부쉘 외측홈을 채우면서 상부쉘과 하부쉘을 결합시키는 것을 특징으로 하는 플라스틱 탱크.An upper shell formed with an upper shell fusion protrusion and an upper shell fusion groove; And
And a lower shell in which a lower shell fusion protrusion and a lower shell fusion groove are formed;
The upper shell fusion groove and the lower shell fusion groove are formed so that there is no connection between the inner surface of the upper shell and the inner surface of the lower shell, respectively;
As the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other by thermal fusion, the inner bead is formed to protrude from the inner surface of the upper shell and the inner surface of the lower shell to the inside of the tank,
The upper shell fusion groove and the lower shell fusion groove each include an upper shell outer groove and a lower shell outer groove stepwisely connected to the outer surface of the upper shell and the outer surface of the lower shell;
The outer bead generated as the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other through thermal fusion, and fill the upper shell outer groove and the lower shell outer groove, and connect the upper shell and the lower shell. 청구항 1에 있어서,
내측비드는 상부쉘 융착돌기의 용융에 의해 형성된 일측비드 및 하부쉘 융착돌기의 용융에 의해 형성된 타측비드가 중첩된 더블비드 모양으로 형성된 것을 특징으로 하는 플라스틱 탱크.The method according to claim 1,
The inner bead is formed in a double bead shape in which one bead formed by melting of the upper shell fusion protrusion and the other bead formed by melting of the lower shell fusion protrusion are overlapped. 청구항 2에 있어서,
내측비드는 일측비드와 타측비드 사이에 형성된 노치가 상부쉘의 안쪽면 및 하부쉘의 안쪽면을 기준으로 탱크의 내측에 위치하도록 형성된 것을 특징으로 하는 플라스틱 탱크.The method according to claim 2,
The inner bead is a plastic tank, characterized in that the notch formed between the one side bead and the other side bead is positioned inside the tank with respect to the inner surface of the upper shell and the inner surface of the lower shell. 삭제delete 청구항 1에 있어서,
외측비드는 상부쉘 융착돌기의 용융에 의해 형성된 일측비드 및 하부쉘 융착돌기의 용융에 의해 형성된 타측비드가 중첩된 더블비드 모양으로 형성된 것을 특징으로 하는 플라스틱 탱크.The method according to claim 1,
The outer bead is formed in a double bead shape in which one bead formed by melting of the upper shell fusion protrusion and the other bead formed by melting of the lower shell fusion protrusion are overlapped. 청구항 5에 있어서,
외측비드는 일측비드와 타측비드사이에 형성된 노치가 상부쉘 외측홈 및 하부쉘 외측홈속에 위치하도록 형성된 것을 특징으로 하는 플라스틱 탱크.The method of claim 5,
The outer bead is a plastic tank, characterized in that the notch formed between the one side bead and the other side bead is located in the upper shell outer groove and the lower shell outer groove. 청구항 1에 있어서,
상부쉘 융착홈은 상부쉘의 안쪽면과 바깥면 사이에 위치하도록 형성된 상부쉘 중간홈을 포함하고;
하부쉘 융착홈은 하부쉘의 안쪽면과 바깥면 사이에 위치하도록 형성된 하부쉘 중간홈을 포함하며;
상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합됨에 따라 생성된 중간비드는 상부쉘 중간홈 및 하부쉘 중간홈을 채우면서 상부쉘과 하부쉘을 결합시키는 것을 특징으로 하는 플라스틱 탱크.The method according to claim 1,
The upper shell fusion groove includes an upper shell intermediate groove formed to be positioned between the inner surface and the outer surface of the upper shell;
The lower shell fusion groove includes a lower shell intermediate groove formed to be positioned between the inner surface and the outer surface of the lower shell;
A plastic tank, characterized in that the intermediate bead formed as the upper shell fusion protrusion and the lower shell fusion protrusion are coupled to each other by thermal fusion, fills the upper shell intermediate groove and the lower shell intermediate groove, and couples the upper shell and the lower shell. 청구항 1에 있어서,
상부쉘 융착돌기와 하부쉘 융착돌기가 서로 열융착으로 결합될 때에 상부쉘 융착돌기 및 하부쉘 융착돌기가 탱크의 내면을 형성하는 것을 특징으로 하는 플라스틱 탱크.The method according to claim 1,
A plastic tank, characterized in that the upper shell fusion protrusion and the lower shell fusion protrusion form an inner surface of the tank when the upper shell fusion protrusion and the lower shell fusion protrusion are thermally fused to each other.
KR1020190139948A 2019-11-05 2019-11-05 Plastic tank KR102239701B1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000280763A (en) * 1999-03-17 2000-10-10 Mannesmann Vdo Ag Automobile fuel tank
JP2004098886A (en) * 2002-09-10 2004-04-02 Fts:Kk Automobile fuel tank and its manufacturing method
JP2006199324A (en) * 2005-01-19 2006-08-03 Toyota Motor Corp Structure of flange joint of fuel tank
KR20080048615A (en) * 2006-11-29 2008-06-03 쌍용자동차 주식회사 A fuel tank for vehicles
JP2010221747A (en) * 2009-03-19 2010-10-07 Nippon Steel Corp Fuel tank structure and fuel tank
KR20180075749A (en) 2016-12-26 2018-07-05 고려인삼연구 주식회사 Method for preparing ginseng extract having a protective effect against heat stress exposure
JP2019136870A (en) * 2018-02-06 2019-08-22 本田技研工業株式会社 Method for producing hollow resin molding and fuel tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000280763A (en) * 1999-03-17 2000-10-10 Mannesmann Vdo Ag Automobile fuel tank
JP2004098886A (en) * 2002-09-10 2004-04-02 Fts:Kk Automobile fuel tank and its manufacturing method
JP2006199324A (en) * 2005-01-19 2006-08-03 Toyota Motor Corp Structure of flange joint of fuel tank
KR20080048615A (en) * 2006-11-29 2008-06-03 쌍용자동차 주식회사 A fuel tank for vehicles
JP2010221747A (en) * 2009-03-19 2010-10-07 Nippon Steel Corp Fuel tank structure and fuel tank
KR20180075749A (en) 2016-12-26 2018-07-05 고려인삼연구 주식회사 Method for preparing ginseng extract having a protective effect against heat stress exposure
JP2019136870A (en) * 2018-02-06 2019-08-22 本田技研工業株式会社 Method for producing hollow resin molding and fuel tank

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