KR100234795B1 - Fuel pump connector and its manufacturing method - Google Patents

Fuel pump connector and its manufacturing method Download PDF

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Publication number
KR100234795B1
KR100234795B1 KR1019970007211A KR19970007211A KR100234795B1 KR 100234795 B1 KR100234795 B1 KR 100234795B1 KR 1019970007211 A KR1019970007211 A KR 1019970007211A KR 19970007211 A KR19970007211 A KR 19970007211A KR 100234795 B1 KR100234795 B1 KR 100234795B1
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South Korea
Prior art keywords
housing
connector
fuel pump
present
housings
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KR1019970007211A
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Korean (ko)
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KR19980072397A (en
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장국환
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이창원
한국단자공업주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M2037/082—Details of the entry of the current supply lines into the pump housing, e.g. wire connectors, grommets, plugs or sockets

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

본 발명은 연료펌프용 컨넥터 및 그 제조 방법에 관한 것이다.The present invention relates to a connector for a fuel pump and a method of manufacturing the same.

본 발명에 의한 연료펌프용 컨넥터는, 전기적 연결을 위한 단자를 각각 구비하는 복수개의 내부하우징과; 상기 복수개의 내부하우징이 결합된 상태에서, 그 외측에서 사출 성형되는 외부하우징을 포함하여 구성된다. 그리고 본 발명에 의한 제조방법은, 각각 필요한 단자를 내장하는 내부하우징을 복수개 사출성형하고; 상기 복수개의 내부하우징을 결합한 상태에서, 그 외측에 외부하우징을 사출성형하는 단계로 구성된다. 또한 내부하우징에 내장되는 단자의 표면은 널링 처리된 상태에서 내부하우징을 사출 성형한다.A fuel pump connector according to the present invention comprises: a plurality of internal housings each having terminals for electrical connection; In a state in which the plurality of inner housings are coupled, the outer housing is injection molded from the outside. In addition, the manufacturing method according to the present invention comprises: injection molding a plurality of internal housings each containing necessary terminals; In a state in which the plurality of inner housings are combined, the outer housing is injection molded on the outside thereof. In addition, the surface of the terminal embedded in the inner housing is injection molded into the inner housing in the knurled state.

Description

연료펌프용 컨넥터 및 그 제조방법Fuel pump connector and manufacturing method

제1도는 본 발명에 의한 컨넥터의 사용상태 단면도.1 is a cross-sectional view of the state of use of the connector according to the present invention.

제2도는 본 발명에 의한 컨넥터의 단면도.2 is a cross-sectional view of a connector according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 컨넥터 10 : 제 1 내부하우징1: Connector 10: 1st internal housing

12 : 제 1 단자 14 : 결합돌기12: first terminal 14: engaging projection

20 : 제 2 내부하우징 22 : 제 2 단자20: second internal housing 22: second terminal

24 : 결합홈 30 : 외부하우징24: coupling groove 30: external housing

본 발명은 연료펌프에 사용되는 컨넥터 및 그 제조 방법에 관한 것으로, 더욱 상세하게는, 연료의 누출이 방지되도록 다중 사출 방법에 의하여 만들어 지는 연료펌프용 컨넥터에 관한 것이다.The present invention relates to a connector used in a fuel pump and a manufacturing method thereof, and more particularly, to a connector for a fuel pump made by a multiple injection method so that the leakage of fuel is prevented.

본 명세서에서 사용하는 연료펌프는, 연료탱크의 연료를 기화기 또는 스토틀밸브 등에 공급하는 장치를 말하고, 이러한 연료의 공급시 센서의 체크 등을 위하여 전류의 통로를 형성하는 것을 연료펌프용 컨넥터라고 한다. 상기 연료펌프용 컨넥터는, 하단부가 연료탱크의 내부에 장착하고, 상단부는 돌출된 상태로 사용되기 때문에, 연료탱크 내부의 압력에 의한 기름의 유출(Leaking)이 가장 문제가 된다. 기름의 유출이 컨넥터의 내부를 통하여 발생하면 컨넥터 내부의 단자의 누전등의 문제가 발생하기 때문에, 안전과도 밀접한 관계를 가지고 있기 때문이다.The fuel pump used in the present specification refers to an apparatus for supplying fuel from a fuel tank to a vaporizer or a bottle valve, and the like, and forming a passage for electric current for checking a sensor when supplying such fuel is called a fuel pump connector. . Since the lower end portion is mounted inside the fuel tank and the upper end portion is used in a protruding state, the leakage of oil due to the pressure inside the fuel tank is a problem. This is because leakage of oil occurs through the inside of the connector, causing problems such as leakage of the terminal inside the connector, and thus has a close relationship with safety.

종래의 컨넥터를 살펴보면, 내측에 복수개의 단자를 구비하는 컨넥터 하우징에 있어서, 단자와 하우징의 밀착 정도에 따라서 상기와 같은 리킹의 문제가 발생한다. 즉, 단자가 하우징의 내부에서, 하우징과 틈새없이 밀착되지 않으면 문제점이 생기게 되는 것이다. 그러나, 실제 사출의 경우, 하우징의 응고시 수축의 문제 등을 고려하며, 리킹을 완전하게 방지하는 것은 힘들다. 그리고 종래에 있어서, 이러한 문제를 해결하기 위하여 단자에 하우징과의 밀착을 위한 접착제를 도포한 후에, 사출을 시행하는 방법이 있으나, 이러한 공정은 작업성에도 문제가 되거니와, 확실한 리킹의 방지 측면에서 다소 불리한 면이 있다.Looking at the conventional connector, in the connector housing having a plurality of terminals on the inside, the problem of the above leak occurs according to the degree of close contact between the terminal and the housing. In other words, if the terminal is not in close contact with the housing in the interior of the housing, there is a problem. However, in the case of the actual injection, it is difficult to completely prevent the leaking, considering the problem of shrinkage during solidification of the housing. In the related art, in order to solve such a problem, there is a method of applying injection after applying an adhesive for close contact with a housing to a terminal, but such a process is also problematic in terms of workability, and in terms of prevention of reliable leaking. There are some disadvantages.

본 발명은 이러한 문제점을 해결하기 위한 것으로, 리킹을 방지할 수 있는 연료펌프용 컨넥터 및 그 제조 방법을 제공하는 것을 목적으로 한다.The present invention has been made to solve such a problem, and an object of the present invention is to provide a connector for a fuel pump and a method of manufacturing the same that can prevent leaking.

상기 목적을 해결하기 위한 본 발명에 의한 연료펌프용 컨넥터는, 전기적 연결을 위한 단자를 각각 구비하는 복수개의 내부하우징과, 상기 복수개의 내부하우징이 결합된 상태에서, 그 외측에서 사출 성형되는 외부하우징을 포함하여 구성되는 것을 특징으로 한다. 그리고 상기 내부하우징에 내장된 단자의 표면은 널링 처리되어 있다.A fuel pump connector according to the present invention for solving the above object, a plurality of inner housings each having a terminal for electrical connection, and the outer housing that is injection-molded from the outside in a state in which the plurality of inner housings are coupled Characterized in that comprises a. The surface of the terminal embedded in the inner housing is knurled.

그리고 본 발명에 의한 제조 방법에 의하면, 각 필요한 단자를 내장하는 내부하우징을 복수개 사출성형하고, 상기 복수개의 내부하우징을 결합한 상태에서, 그 외측에 외부하우징을 사출성형하는 단계로 구성된다.According to the manufacturing method according to the present invention, a plurality of internal housings in which each necessary terminal is embedded are injection molded, and in a state in which the plurality of internal housings are combined, the external housings are injection molded.

다음에는 도면에 도시한 실시예에 기초하면서 본 발명을 더욱 상세하게 설명하기로 한다.Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

제1도 및 제2도를 참고하면서 본 발명을 더욱 항세하게 살펴본다. 본 발명에 의한 컨넥터는, 복수개의 제 1 단자(12)를 구비하는 제 1 내부하우징(10)과, 복수개의 제 2 단자(22)를 구비하는 제 2 내부하우징(20)과, 상기 제 1 내부하우징(10) 및 제 2 내부하우징(20)을 내장하도록 사출성형되는 외부하우징(30)을 포함하여 구성된다.The present invention will be described in more detail with reference to FIGS. 1 and 2. The connector according to the present invention includes a first internal housing 10 having a plurality of first terminals 12, a second internal housing 20 having a plurality of second terminals 22, and the first one. And an outer housing 30 which is injection molded to house the inner housing 10 and the second inner housing 20.

연료펌프용 컨넥터의 내부에 사용되는 복수개의 단자를 장착위치에 따라 제 1 단자(12) 및 제 2 단자(22)로 구분하고, 상기 제 1 단자(12)와 제 2 단자(22)를 각각 별도의 제 1 내부하우징(10)과 제 2 내부하우징(20)에 인서트 사출 성형한다.A plurality of terminals used in the fuel pump connector are divided into the first terminal 12 and the second terminal 22 according to the mounting position, and the first terminal 12 and the second terminal 22 are respectively Insert injection molding is carried out in separate first and second inner housings 10 and 20.

여기서 복수개의 제 1 단자(12) 또는 제 2 단자(22)를 제 1 내부하우징(10) 또는 제 2 내부하우징(20)에 인서트 사출성형하기 위한 단자의 처리과정을 살펴보면, 상기 제 1 단자(12) 또는 제 2 단자(22)의 표먼을 널링(Knurling)처리한 후에 사출하는 것을 특징으로 한다. 이와 같은 널링처리에 의하여, 단자의 표면을 감싸며 사출되는 하우징은 더욱 단자와 밀착되게 되어, 단자와 하우징의 간격을 통한 리킹이 방지될 수 있도록 하고 있다. 그러나 본 발명은 상기와 같이 표면의 널링 처리에 한정되는 것은 아니고, 각각의 단자(12,22)를 각각의 내부하우징(10,20) 속에 넣은 상태에서 인서트 사출 성형하는 경우, 종래와 같이 일종의 접착제를 도포한 후에, 각각의 내부하우징(10,20)을 별도로 사출 성형하는 방법을 채용할 수도 있다. 즉 본 발명에 의한 컨넥터는, 각각의 단자(12,22)가 고정되는 내부하우징(10,20)을 별도로 사출 성형한 후에, 다시 이들의 외부를 감싸는 형태의 외부하우징(30)를 사출 성형한다는 점에 기초하고 있다.Herein, a process of insert injection molding the plurality of first terminals 12 or the second terminals 22 into the first inner housing 10 or the second inner housing 20 will be described. 12) or after the knurling treatment of the top of the second terminal 22 is carried out. By such a knurling process, the housing which surrounds the surface of the terminal and is injected is further brought into close contact with the terminal, so that leaking through the gap between the terminal and the housing can be prevented. However, the present invention is not limited to the surface knurling treatment as described above, and in the case of insert injection molding in the state in which the respective terminals 12 and 22 are placed in the respective inner housings 10 and 20, a kind of adhesive is conventional. After coating, the method of injection molding each of the inner housings 10 and 20 separately may be employed. That is, the connector according to the present invention, after separately injection molding the internal housing (10, 20) to which the respective terminals (12, 22) are fixed, the injection molding of the outer housing 30 of the form surrounding the outside of them again Based on the point.

이렇게 하여, 제 1 단자(12) 및 제 2 단자(22)가 제 1 내부하우징(10) 및 제 2 내부하우징(20)에 고정된 상태로 사출이 완료되면, 다음에는 상기 제 1 내부하우징(10)과 제 2 내부하우징(20)을 내측에 고정시킨 상태에서, 외부하우징(30)을 그 외출에 사출하는 것에 의하여, 연료탱크용 컨넥터가 완성된다.In this way, when the injection is completed with the first terminal 12 and the second terminal 22 fixed to the first internal housing 10 and the second internal housing 20, the first internal housing ( In the state where 10) and the second inner housing 20 are fixed inside, the fuel tank connector is completed by injecting the outer housing 30 to the outside.

상기 외부하우징(30)은, 연료펌프용 컨넥터로서의 소정의 외형을 가지고 있으며, 내부의 제 1, 2 내부하우징(10,20)과 밀착되어, 그 사이를 통한 리킹이 방지된다.The outer housing 30 has a predetermined outer shape as a fuel pump connector and is in close contact with the inner first and second inner housings 10 and 20 to prevent leaking therebetween.

상기 제 1 내부하우징(10)과 제 2 내부하우징(20)을 소정의 형상으로 결합한 상태에서 외부하우징(30)을 사출하기 위하여 제 1 내부하우징(10)과 제 2 내부하우징(20)을 결합하여 고정시킬 필요가 있다. 따라서 본 발명에 의하면, 상기 제 1 내부하우징(10)과 제 2 내부하우징(20)에 각각 결합돌기(14)와 결합홈(24)를 선택적으로 성형하고 있다. 상기 제 1 내부하우징(10)의 결합돌기(14)를 제 2 내부하우징(20)의 결합홈(24)에 결합시키면, 상기 제 1 내부하우징(10)과 제 2 내부하우징(20)은, 소정의 형상으로 결합된 상태를 유지하게 된다. 이러한 상태에서 외부하우징(30)을 사출하는 것에 의하여 전체적인 컨넥터를 완성하게 된다.Combining the first inner housing 10 and the second inner housing 20 to eject the outer housing 30 in a state in which the first inner housing 10 and the second inner housing 20 are combined in a predetermined shape. To be fixed. Therefore, according to the present invention, the coupling protrusions 14 and the coupling grooves 24 are selectively formed in the first inner housing 10 and the second inner housing 20, respectively. When the coupling protrusion 14 of the first inner housing 10 is coupled to the coupling groove 24 of the second inner housing 20, the first inner housing 10 and the second inner housing 20 are connected to each other. It is maintained in a state coupled to a predetermined shape. In this state, by injecting the outer housing 30, the entire connector is completed.

다음에는 본 발명에 의한 전체적인 제조 공정에 대하여 간단하게 설명한다. 상술한 바와 같이, 먼저 제 1 단자(12)와 제 2 단자(22)가 내부에 장착되도록 제 1 내부하우징(10)과 제 2 내부하우징(20)을 별도로 사출 성형한다.Next, the whole manufacturing process by this invention is demonstrated easily. As described above, firstly, the first internal housing 10 and the second internal housing 20 are separately injection molded so that the first terminal 12 and the second terminal 22 are mounted therein.

이 때 상기 내부하우징(10,20) 속에 장착되는 단자(12,22)의 외측은 널링 가공하는 것에 의하여 각각의 내부하우징(10,20) 속에서 그 틈새를 통한 리킹을 방지하도록 사출 성형되어야 할 것이다.At this time, the outer side of the terminals 12 and 22 mounted in the inner housings 10 and 20 should be injection molded to prevent leaking through the gaps in the respective inner housings 10 and 20 by knurling. will be.

그리고 제 1 내부하우징(10)과 제 2 내부하우징(20)을, 결합돌기(14) 및 결함홈(24)을 이용하여 소정의 형상으로 결합한 뒤에, 그 외부에 외부하우징(30)을 사출성형하는 것에 의하여 본 발명에 의한 연료펌프용 컨넥터가 완성된다.After the first inner housing 10 and the second inner housing 20 are joined to each other by using a coupling protrusion 14 and a defect groove 24 in a predetermined shape, the outer housing 30 is injection molded outside thereof. By doing so, the fuel pump connector according to the present invention is completed.

제1도를 참조하여, 본 발명에 의한 컨넥터의 사용상태를 간단하게 살펴본다. 상술한 바와 같이, 본 발명에 의한 컨넥터는, 연료탱크(110)의 일측에 장착되어 사용되는 것이다. 따라서 도시한 바와 같이, 연료탱크(110)의 일측 플레이트(100) 상에 장착된다. 그리고, 본 발명에 의한 컨넥터(1)와 상기 플레이트(100) 사이의 리킹을 방지하기 위하여, 상기 플레이트(100)와 컨넥터(1)의 사이에는 기름의 리킹 방지용 오일링(120)이 삽입된 상태로 사용된다.Referring to Figure 1, briefly look at the state of use of the connector according to the present invention. As described above, the connector according to the present invention is used to be mounted on one side of the fuel tank 110. Therefore, as shown, it is mounted on one side plate 100 of the fuel tank 110. Then, in order to prevent leaking between the connector 1 and the plate 100 according to the present invention, the oil ring 120 for preventing the leakage of oil is inserted between the plate 100 and the connector 1. Used as

이상에서 상술한 바와 같은 본 발명에 의하면 다음과 같은 잇점이 기대된다.According to the present invention as described above, the following advantages are expected.

먼저, 본 발명에 의한 컨넥터는, 각각 단자를 구비하는 제 1 및 제 2 내부하우징(10,20)를 별개의 공정에 의하여 사출 성형하고, 다시 이들을 결합한 상태에서 외부하우징(30)을 사출성형하고 있음을 알 수 있다. 이러한 다중 사출 방법에 의하여 완성되는 본 발명에 의하면, 한 번의 사출에 의하여 발생하는 리킹을 방지하는 것이 가능하다. 즉, 사출시의 수축에 의한 문제를 해결하는 것에 의하여 내부하우징(10,20)과 외부하우징(30)을 완전하게 밀착시킴으로써, 기름의 유출을 완전하게 방지하게 된다.First, the connector according to the present invention, by injection molding the first and second internal housing (10, 20) each having a terminal by a separate process, and injection molding the outer housing 30 in the state of combining them again It can be seen that. According to the present invention completed by such a multiple injection method, it is possible to prevent the leaking caused by one injection. That is, by completely solving the problems caused by the shrinkage during injection, the inner housing (10, 20) and the outer housing 30 in close contact, thereby preventing the outflow of oil completely.

따라서 기름의 유출에 의한 안전상의 문제점을 해결함으로써, 제품의 신뢰성을 높이는 잇점이 기대된다.Therefore, by solving the safety problems caused by the leakage of oil, it is expected that the advantage of improving the reliability of the product.

Claims (4)

전기적 연결을 위한 단자를 각각 구비하는 복수개의 내부하우징과; 상기 복수개의 내부하우징이 결합된 상태에서, 그 외측에서 사출성형되는 외부하우징을 포함하여 구성되는 것을 특징으로 하는 연료펌프용 컨넥터.A plurality of internal housings each having terminals for electrical connection; A connector for a fuel pump, characterized in that configured to include an outer housing that is injection molded from the outside in a state in which the plurality of inner housings are coupled. 제1항에 있어서, 상기 내부하우징에 내장된 단자의 표면은 널링처리되는 것을 특징으로 하는 연료펌프용 컨넥터.The connector of claim 1, wherein a surface of the terminal embedded in the inner housing is knurled. 각각 필요한 단자를 내장하는 내부하우징을 복수개 사출성형하는 단계와; 상기 복수개의 내부하우징을 결합한 상태에서, 그 외측에 외부하우징을 사출성형하는 단계로 구성되는 것을 특징으로 하는 연료펌프용 컨넥터.Injection molding a plurality of internal housings each containing necessary terminals; The fuel pump connector, characterized in that configured in the injection molding the outer housing on the outside in a state in which the plurality of inner housings are coupled. 제3항에 있어서, 내부하우징에 내장되는 단자의 표면은 널링처리된 상태에서 내부하우징을 사출성형하는 것을 특징으로 하는 연료펌프용 컨넥터.4. A connector for a fuel pump according to claim 3, wherein the surface of the terminal embedded in the inner housing is injection molded in the knurled state.
KR1019970007211A 1997-03-05 1997-03-05 Fuel pump connector and its manufacturing method KR100234795B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915913B1 (en) 2008-03-07 2009-09-07 주식회사 청석 Bldc pump equipped with connector for improving quality at insert moulding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100915913B1 (en) 2008-03-07 2009-09-07 주식회사 청석 Bldc pump equipped with connector for improving quality at insert moulding

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