KR102227357B1 - battery charging device for charging type power tool - Google Patents

battery charging device for charging type power tool Download PDF

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Publication number
KR102227357B1
KR102227357B1 KR1020190020501A KR20190020501A KR102227357B1 KR 102227357 B1 KR102227357 B1 KR 102227357B1 KR 1020190020501 A KR1020190020501 A KR 1020190020501A KR 20190020501 A KR20190020501 A KR 20190020501A KR 102227357 B1 KR102227357 B1 KR 102227357B1
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South Korea
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terminal
connection terminal
charging device
connection
power tool
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KR1020190020501A
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Korean (ko)
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KR20200102583A (en
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박성수
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계양전기 주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/0052—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by joining features of the housing parts

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

본 발명은 터미널 접속단자를 새로운 타입으로 구비시켜 터미널 접속단자가 구비되는 터미널 블럭에 대한 별도 제작 및 조립을 삭제하고, 아울러 터미널 블럭과 PCB 간에 케이블을 이용한 전기적 연결도 삭제하여 원가절감은 물론 부품 간소화 및 공정 단순화를 실현할 수 있도록 한 것으로, 본 발명은 PCB에는 접속단자가 전기적으로 직접 연결되는 형태로 상부 하우징을 향해 배치되어 있고, 상기 상부 하우징에는 접속단자가 인출되는 형태로 결합 되도록 접속단자와 대응하게 슬롯공이 형성되는 충전식 전동공구용 배터리팩 충전장치가 제공된다.The present invention eliminates the separate manufacturing and assembly of the terminal block provided with the terminal connection terminal by providing a terminal connection terminal in a new type, and also eliminates the electrical connection between the terminal block and the PCB using a cable, thereby reducing cost as well as simplifying parts. And a process simplification. In the present invention, the connection terminal is arranged toward the upper housing in a form in which the connection terminal is directly electrically connected to the PCB, and the connection terminal corresponds to the connection terminal so that the connection terminal is drawn out to the upper housing. There is provided a battery pack charging device for a rechargeable power tool in which slotted holes are formed.

Description

충전식 전동공구용 배터리팩 충전장치{battery charging device for charging type power tool} Battery charging device for charging type power tool

본 발명은 충전식 전동공구용 배터리팩 충전장치에 관한 것으로, 더욱 상세하게는 터미널 접속단자를 새로운 타입으로 구비시켜 터미널 접속단자가 구비되는 터미널 블럭에 대한 별도 제작 및 조립을 삭제하고, 아울러 터미널 블럭과 PCB 간에 케이블을 이용한 전기적 연결도 삭제하여 원가절감은 물론 부품 간소화 및 공정 단순화를 실현할 수 있도록 한 것이다. The present invention relates to an apparatus for charging a battery pack for a rechargeable power tool, and more particularly, a terminal connection terminal is provided in a new type to eliminate separate manufacturing and assembly of a terminal block provided with a terminal connection terminal, and a terminal block and By eliminating the electrical connection between PCBs using cables, it is possible to realize cost reduction as well as component simplification and process simplification.

일반적으로 전기를 이용하여 작업을 편리하게 하는 전동공구분야는 확대되어가고 있으나, 대부분의 전동 공구는 가정용, 산업용, 상용 교류 전원을 사용하여야 하므로 사용되는 곳이 제한되어 왔다. In general, the field of power tools that facilitate work using electricity is expanding, but most of the power tools have to be used for household, industrial, and commercial AC power, so the places where they are used have been limited.

그러므로 전기가 없는 곳에서도 사용 가능한 충전식 전동공구에 대한 요구가 증가 되어 이제는 충전 가능한 배터리팩을 전동공구에 장착하여 사용하고 있다. 아울러 상기 배터리팩에 대한 충전은 별도의 배터리팩 충전장치에 접속 결합하는 것으로 충전을 하고 있다.Therefore, the demand for rechargeable power tools that can be used in places without electricity has increased, and now rechargeable battery packs are installed and used in power tools. In addition, charging of the battery pack is performed by connecting and coupling to a separate battery pack charging device.

도 1a 및 도 1b는 종래기술에 따른 충전식 전동공구용 배터리팩 충전장치를 보여주는 것으로, 도면에서 보듯이 배터리팩 충전장치(10)는 상부 하우징(12)과 하부 하우징(14)의 결합을 통해 외관을 형성하고 있다. 특히, 상부 하우징(12)에는 접속단자(16)를 구비하고 있는 터미널블럭(18)이 분리 가능한 형태로 상부 하우징(12)의 결합공(20)에 조립 고정되어 있다.1A and 1B show a battery pack charging device for a rechargeable power tool according to the prior art. As shown in the drawing, the battery pack charging device 10 has an appearance through a combination of the upper housing 12 and the lower housing 14. Is forming. In particular, a terminal block 18 having a connection terminal 16 on the upper housing 12 is assembled and fixed to the coupling hole 20 of the upper housing 12 in a detachable form.

아울러, 상기 하부 하우징(14)의 내부에는 PCB(22)가 조립되는 형태로 결합 되어 있고, 상기 PCB(22)는 도시되지 아니한 케이블을 통해 터미널블럭(18)의 접속단자(16)와 전기적으로 연결되어 있다.In addition, the inside of the lower housing 14 is coupled in a form in which the PCB 22 is assembled, and the PCB 22 is electrically connected to the connection terminal 16 of the terminal block 18 through a cable (not shown). It is connected.

그런데, 위와 같이 배터리팩 충전장치(10)는 접속단자(16)를 터미널블럭(18)에 인서트 사출하여 별도의 구성품으로 제작하고 있어, 금형비와 재료비가 상승하게 되고 그로 인해 원가 절감을 실현하기 어려운 문제가 있었다.However, as described above, the battery pack charging device 10 inserts the connection terminal 16 into the terminal block 18 and manufactures it as a separate component, which increases the mold cost and material cost, which makes it difficult to realize cost reduction. There was a problem.

또한, 위와 같이 별도로 제작된 터미널블럭(18)을 상부 하우징(12)에 조립하여야 하고, 아울러 별도의 케이블을 이용하여 터미널블럭(18)의 접속단자(16)와 PCB(22) 간에 전기적인 연결 작업이 필요하여 공정수는 물론, 부품수를 간소화하기 어려워 작업성과 생산성을 모두 향상시킬 수 없는 문제가 있었다.In addition, the terminal block 18 separately manufactured as above must be assembled to the upper housing 12, and electrical connection between the connection terminal 16 of the terminal block 18 and the PCB 22 using a separate cable. There was a problem in that it was difficult to simplify the number of parts as well as the number of processes because work was required, so that both workability and productivity could not be improved.

대한민국등록특허공보 등록번호 10-1895333호Korean Registered Patent Publication No. 10-1895333

본 발명은 배경기술에서 제시된 제반 문제점을 해결하기 위한 것으로서, 터미널 접속단자를 새로운 타입으로 구비시켜 터미널 접속단자가 구비되는 터미널 블럭에 대한 별도 제작 및 조립을 삭제하고, 아울러 터미널 블럭과 PCB 간에 케이블을 이용한 전기적 연결도 삭제하여 원가절감은 물론 부품 간소화 및 공정 단순화를 실현할 수 있도록 한 충전식 전동공구용 배터리팩 충전장치를 제공하는데 목적이 있다.The present invention is to solve all the problems presented in the background art, by providing a terminal connection terminal in a new type, eliminating the separate fabrication and assembly of the terminal block provided with the terminal connection terminal, and connecting a cable between the terminal block and the PCB. An object of the present invention is to provide a battery pack charging device for rechargeable power tools that can realize cost reduction as well as component simplification and process simplification by eliminating the electrical connection used.

위와 같은 해결하는 과제를 달성하기 위한 본 발명은, PCB에는 접속단자가 전기적으로 직접 연결되는 형태로 상부 하우징을 향해 배치되어 있고, 상기 상부 하우징에는 접속단자가 인출되는 형태로 결합 되도록 접속단자와 대응하게 슬롯공이 형성되는 충전식 전동공구용 배터리팩 충전장치를 통해 목적을 달성할 수 있다.In the present invention for achieving the above-described problem, the connection terminal is arranged toward the upper housing in a form in which the connection terminal is directly connected to the PCB, and the connection terminal corresponds to the connection terminal so that the connection terminal is drawn out to the upper housing. The purpose can be achieved through a battery pack charging device for a rechargeable power tool in which a slot hole is formed.

또한, 본 발명은 상부 하우징의 내면에는 접속단자와 슬롯공 간에 안정적인 조립을 유도하기 위하여 슬롯공의 일단에서 하부 하우징을 향해 길이를 가지는 가이드리브가 형성되어 있고, 상기 가이드리브에는 접속단자의 진입을 가이드 하는 가이드홈이 각각 파져 있는 충전식 전동공구용 배터리팩 충전장치를 통해 목적을 달성할 수 있다.In addition, according to the present invention, a guide rib having a length from one end of the slot hole toward the lower housing is formed on the inner surface of the upper housing to induce a stable assembly between the connection terminal and the slot hole, and the guide rib guides the entrance of the connection terminal. The purpose can be achieved through a rechargeable power tool battery pack charging device in which each of the guide grooves is dug.

또한, 본 발명은 접속단자는 PCB에 전기적 연결되는 제1단자부와 슬롯공으로 인출되는 제2단자부로 이루어지고, 상기 제1단자부와 제2단자부는 서로 단차를 형성하는 단턱을 가지고 일측 편과 타측 편에 각각 배치되는 형태로 연결되는 충전식 전동공구용 배터리팩 충전장치를 통해 목적을 달성할 수 있다.In addition, in the present invention, the connection terminal is composed of a first terminal part electrically connected to the PCB and a second terminal part drawn out through a slot hole, and the first terminal part and the second terminal part have stepped portions forming a step difference from one side and the other side. The purpose can be achieved through a battery pack charging device for rechargeable power tools that are connected in a form that is respectively arranged in the.

또한, 본 발명은 접속단자의 배열 방향에 따른 단턱의 위치에 따라 오진입하는 접속단자의 단턱이 가이드리브에 진입 저지되어 접속단자 모두 완전한 진입이 이루어지지 않도록 상기 가이드리브 간에 높이가 서로 다르게 형성되는 충전식 전동공구용 배터리팩 충전장치를 통해 목적을 달성할 수 있다.In addition, in the present invention, the height of the guide ribs is formed to be different from each other so that the stepped step of the connection terminal is prevented from entering the guide rib according to the position of the stepped step according to the arrangement direction of the connection terminal. The purpose can be achieved through a battery pack charging device for rechargeable power tools.

이와 같이, 본 발명에 따른 충전식 전동공구용 배터리팩 충전장치를 사용하게 되면, PCB에 접속단자가 직접 조립되는 구조에 의해 접속단자를 구비하는 터미널블럭에 대한 별도 제작 및 조립을 삭제하고, 아울러 터미널블럭과 PCB 간에 케이블을 이용한 전기적 연결도 삭제하여 원가절감은 물론 부품 간소화 및 공정 단순화를 실현할 수 있는 효과를 기대할 수 있다.As described above, when the battery pack charging device for a rechargeable power tool according to the present invention is used, the separate manufacture and assembly of the terminal block having the connection terminal is eliminated by the structure in which the connection terminal is directly assembled on the PCB, and the terminal By eliminating the electrical connection between the block and the PCB using a cable, cost reduction, as well as component simplification and process simplification, can be expected.

도 1a 및 도 1b는 종래기술에 따른 충전식 전동공구용 배터리팩 충전장치를 보여주는 것으로, 도 1a는 분리 사시도이고, 도 1b는 결합 사시도이다.
도 2a 및 도 2b는 본 발명에 따른 충전식 전동공구용 배터리팩 충전장치를 보여주는 것으로, 도 2a는 분리 사시도이고, 도 2b는 결합 사시도이다.
도 3은 상부 하우징과 접속단자가 결합된 모습을 보여주는 것이다.1A and 1B show a battery pack charging device for a rechargeable power tool according to the prior art, and FIG. 1A is an exploded perspective view, and FIG. 1B is a combined perspective view.
2A and 2B show a battery pack charging device for a rechargeable power tool according to the present invention, and FIG. 2A is an exploded perspective view, and FIG. 2B is a combined perspective view.
3 shows a state in which the upper housing and the connection terminal are combined.

이하, 본 발명에 따른 충전식 전동공구용 배터리팩 충전장치를 첨부된 예시도면에 의거 상세히 설명한다. Hereinafter, an apparatus for charging a battery pack for a rechargeable power tool according to the present invention will be described in detail with reference to the accompanying exemplary drawings.

도 2a 내지 도 3에 도시된 바와 같이 배터리팩 충전장치(30)는 상부 하우징(32)과 하부 하우징(34)의 결합으로 이루어진다.As shown in FIGS. 2A to 3, the battery pack charging device 30 is formed by a combination of an upper housing 32 and a lower housing 34.

구체적으로, 상기 하부 하우징(34)의 내부에는 PCB(36)가 수용되는 형태로 결합 되어 있고, 상기 PCB(36)에는 제1, 제3, 제5단자(38a, 38b, 38c)와 제2 및 제4단자(40a, 40b)로 구성되는 접속단자(46)가 PCB(36)에 땜납 되는 상태로 상부 하우징(32)을 향해 수직 배치되어 있다. Specifically, the lower housing 34 is coupled in a form in which the PCB 36 is accommodated, and the first, third and fifth terminals 38a, 38b and 38c and the second And a connection terminal 46 composed of the fourth terminals 40a and 40b is vertically disposed toward the upper housing 32 in a state of being soldered to the PCB 36.

이러한, 상기 접속단자(46)는 PCB(36)에 전기적 연결되는 제1단자부(48)와 슬롯공(54)으로 인출되는 제2단자부(50)로 이루어지고, 상기 제1단자부(48)와 제2단자부(50)는 서로 단차를 형성하는 단턱(52)을 가지고 일측 편과 타측 편에 각각 배치되는 형태로 연결되는 일체형 구조로 이루어져 있다.The connection terminal 46 is composed of a first terminal portion 48 electrically connected to the PCB 36 and a second terminal portion 50 drawn out through the slot hole 54, and the first terminal portion 48 and The second terminal part 50 has a stepped step 52 forming a step difference from each other, and has an integral structure that is connected in a form disposed on one side and the other side respectively.

이때 상기 접속단자(46) 중 제1, 제3, 제5단자(38a, 38b, 38c)와 제2 및 제4단자(40a, 40b)는 모두 동일한 구조 및 형상으로 이루어지며, 단지 서로 반대되는 방향으로 배열되어 있다. 즉, 제2단자부(50)를 가상의 사각으로 가정할 때, 일측 모서리에 형성되는 단턱(52)이 위치하게 되는 방향을 살펴보면, 제1, 제3, 제5단자(38a, 38b, 38c)와 제2 및 제4단자(40a, 40b) 간에 서로 반대 방향으로 위치하도록 배치되어 있다.At this time, of the connection terminals 46, the first, third, and fifth terminals 38a, 38b, and 38c and the second and fourth terminals 40a and 40b are all of the same structure and shape, and are only opposite to each other. It is arranged in the direction. That is, assuming that the second terminal part 50 is a virtual square, looking at the direction in which the stepped part 52 formed at one corner is located, the first, third, and fifth terminals 38a, 38b, 38c And the second and fourth terminals 40a and 40b are arranged to be located in opposite directions to each other.

한편, 상기 상부 하우징(32)에는 하부 하우징(34)을 결합시, 앞서 설명된 접속단자(46)가 관통하는 형태로 인출되도록 슬롯공(54)이 각각 형성되어 있다.Meanwhile, slot holes 54 are formed in the upper housing 32 so that when the lower housing 34 is coupled, the connection terminals 46 described above are drawn out in the form of penetrating therethrough.

특히, 상기 상부 하우징(32)의 내면에는 슬롯공(54)의 일단에서 하부 하우징(34)을 향해 가이드리브(56a, 56b)가 형성되어 있으며, 이러한 가이드리브(56a)의 내부에는 가이드홈(58a)이 파져 있고, 인접하고 있는 가이드리브(56b)의 내부에도 가이드홈(58b)이 파져 있다.In particular, guide ribs 56a and 56b are formed on the inner surface of the upper housing 32 toward the lower housing 34 at one end of the slot hole 54, and the guide groove ( 58a) is dug, and a guide groove 58b is also dug inside the adjacent guide rib 56b.

따라서, 상기 접속단자(46)를 슬롯공(54)으로 진입시, 접속단자(46)의 제2단자부(50)가 각각 해당하는 가이드리브(56a, 56b)의 가이드홈(58a, 58b)을 따라 슬라이드 결합 되면서 각각 해당하는 슬롯공(54)으로 진입하게 됨으로써 접속단자(46)의 조립을 보다 안정적으로 유도하게 되고, 아울러 접속단자(46)를 안정적으로 잡아주면서 조립 위치를 안내받게 된다. 그에 따라 조립시 접속단자(46)의 접촉 충격과 부딪침에 의한 접속단자(46)의 휨 및 전기적 연결 파괴를 방지할 수 있게 된다. Therefore, when the connection terminal 46 enters the slot hole 54, the second terminal portion 50 of the connection terminal 46 follows the guide grooves 58a, 58b of the corresponding guide ribs 56a, 56b, respectively. As they slide together, they enter each corresponding slot hole 54 to induce the assembly of the connection terminal 46 more stably, and the assembly position is guided while holding the connection terminal 46 stably. Accordingly, it is possible to prevent bending and electrical connection destruction of the connection terminal 46 due to a contact impact and bump of the connection terminal 46 during assembly.

특히, 상기 접속단자(46) 중 제1, 제3, 제5단자(38a, 38b, 38c)를 가이드 하는 가이드리브(56a)는 제2 및 제4단자(40a, 40b)를 가이드 하는 가이드리브(56b)와 상부 하우징(32)의 내면으로부터 높이(S1, S2)가 서로 다르게 형성되어 있다.In particular, the guide rib 56a for guiding the first, third, and fifth terminals 38a, 38b, 38c of the connection terminals 46 is a guide rib for guiding the second and fourth terminals 40a, 40b. Heights S1 and S2 are formed different from each other from the inner surface of the upper housing 32 and 56b.

따라서, 상기 접속단자(46)를 가이드리브(56a, 56b)의 가이드홈(58a, 58b)으로 진입시키게 될 때, 예를 들어 제1, 제3, 제5단자(38a, 38b, 38c)가 제1, 제3, 제5단자(38a, 38b, 38c)를 가이드 하는 가이드리브(56a)의 가이드홈(58a)로 진입하고, 제2 및 제4단자(40a, 40b)는 제2 및 제4단자(40a, 40b)를 가이드 하는 가이드리브(56b)의 가이드홈(58b) 진입할 경우, 접속단자(46) 모두 완전한 진입이 이루어지게 된다. Therefore, when entering the connection terminal 46 into the guide grooves 58a, 58b of the guide ribs 56a, 56b, for example, the first, third, and fifth terminals 38a, 38b, 38c The first, third and fifth terminals 38a, 38b, 38c are guided through the guide groove 58a of the guide rib 56a, and the second and fourth terminals 40a, 40b are When entering the guide groove 58b of the guide rib 56b guiding the four terminals 40a and 40b, all of the connection terminals 46 are completely entered.

반대로 제1, 제3, 제5단자(38a, 38b, 38c)가 제2 및 제4단자(40a, 40b)를 가이드 하는 가이드리브(56b)의 가이드홈(58b)로 잘못 진입을 하게 될 경우, 가이드리브(56b)는 가이드리브(56a)와 높이(S1, S2) 차이를 서로 두고 있어 제1, 제3, 제5단자(38a, 38b, 38c)의 단턱(52)이 가이드리브(56b)에 걸림 저지된다.Conversely, when the first, third, and fifth terminals 38a, 38b, 38c enter the guide groove 58b of the guide rib 56b that guides the second and fourth terminals 40a, 40b by mistake , The guide rib 56b has a difference between the guide ribs 56a and the heights S1 and S2, so that the stepped portions 52 of the first, third and fifth terminals 38a, 38b, and 38c are guide ribs 56b. ) Is blocked.

결과적으로는 가이드리브(56b)에서는 제1, 제3, 제5단자(38a, 38b, 38c)가 완전히 진입이 이루어지지 않게 됨으로써, 접속단자(46)와 상부 하우징(32)의 슬롯공(54) 간에 오조립을 사전에 인지하게 되어 조립 상에 안정적인 조립을 자연스럽게 유도 받게 된다.As a result, the first, third, and fifth terminals 38a, 38b, and 38c do not completely enter the guide rib 56b, and thus the slot hole 54 of the connection terminal 46 and the upper housing 32 ), the mis-assembly is recognized in advance, and a stable assembly is naturally induced in the assembly.

다시 말해, 상기 접속단자(46)의 배열 방향에 따른 단턱(52)의 위치에 따라 가이드리브(56b)에 완전한 진입이 저지되도록 하여 접속단자(46) 모두 완전한 진입이 이루어지지 않도록 한 것이다.In other words, the complete entry into the guide rib 56b is prevented according to the position of the stepped portion 52 according to the arrangement direction of the connection terminals 46 so that all of the connection terminals 46 are not completely entered.

따라서, 본 발명에 따른 충전식 전동공구용 배터리팩 충전장치를 사용하게 되면, PCB에 접속단자가 직접 조립되는 구조에 의해 배경기술에서 제기된 금형비와 재료비를 현저히 절감할 수 있게 되고, 그와 더불어 공정수 및 부품수를 간소화가 실현되어 작업의 효율성과 생산성을 모두 높일 수 있게 된다.Therefore, when the battery pack charging device for a rechargeable power tool according to the present invention is used, the mold cost and material cost raised in the background art can be significantly reduced by the structure in which the connection terminal is directly assembled to the PCB, and the process along with it Simplification of the number of parts and the number of parts is realized, and both work efficiency and productivity can be improved.

이상과 같이, 본 발명은 비록 한정된 실기 예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 나아가, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등 범위 내에서 다양한 구성 및 변형 가능함은 물론이다.As described above, although the present invention has been described by a limited practical example and drawings, the present invention is not limited thereto, and furthermore, the technical idea of the present invention and the technical idea of the present invention by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various configurations and modifications are possible within the equal range of the claims to be described below.

10, 30 : 배터리팩 충전장치
12, 32 : 상부 하우징
14, 34 : 하부 하우징
16 : 접속단자
18 : 터미널블럭
20 : 결합공
22, 36 : PCB
38a : 제1단자
38b : 제3단자
38c : 제5단자
40a : 제2단자
40b : 제4단자
46 : 접속단자
48 : 제1단자부
50 : 제2단자부
52 : 단턱
54 : 슬롯공
56a, 56b : 가이드리브
58a, 58b : 가이드홈 10, 30: battery pack charging device
12, 32: upper housing
14, 34: lower housing
16: connection terminal
18: terminal block
20: coupling hole
22, 36: PCB
38a: first terminal
38b: 3rd terminal
38c: 5th terminal
40a: 2nd terminal
40b: 4th terminal
46: connection terminal
48: first terminal part
50: 2nd terminal part
52: step
54: slot ball
56a, 56b: guide rib
58a, 58b: guide groove

Claims (4)

PCB(36)에는 접속단자(46)가 전기적으로 직접 연결되는 형태로 상부 하우징(32)을 향해 배치되어 있고,
상기 상부 하우징(32)에는 접속단자(46)가 인출되는 형태로 결합 되도록 접속단자(46)와 대응하게 슬롯공(54)이 형성되며,
상부 하우징(32)의 내면에는 접속단자(46)와 슬롯공(54) 간에 안정적인 조립을 유도하기 위하여 슬롯공(54)의 일단에서 하부 하우징(34)을 향해 길이를 가지는 가이드리브(56a, 56b)가 형성되어 있고, 상기 가이드리브(56a, 56b)에는 접속단자(46)의 진입을 가이드 하는 가이드홈(58a, 58b)이 각각 파져 있으며,
상기 접속단자(46)는 PCB(36)에 전기적 연결되는 제1단자부(48)와 슬롯공(54)으로 인출되는 제2단자부(50)로 이루어지고, 상기 제1단자부(48)와 제2단자부(50)는 서로 단차를 형성하는 단턱(52)을 가지는 것을 특징으로 하는 충전식 전동공구용 배터리팩 충전장치.
On the PCB 36, the connection terminals 46 are arranged toward the upper housing 32 in a form in which they are directly electrically connected,
A slot hole 54 is formed in the upper housing 32 to correspond to the connection terminal 46 so that the connection terminal 46 is coupled in a pull-out form,
Guide ribs 56a and 56b having a length from one end of the slot hole 54 toward the lower housing 34 in order to induce a stable assembly between the connection terminal 46 and the slot hole 54 on the inner surface of the upper housing 32. ) Is formed, and guide grooves 58a and 58b for guiding the entrance of the connection terminal 46 are respectively dug in the guide ribs 56a and 56b,
The connection terminal 46 is composed of a first terminal portion 48 electrically connected to the PCB 36 and a second terminal portion 50 drawn out through the slot hole 54, and the first terminal portion 48 and the second terminal portion 48 The terminal part 50 is a rechargeable power tool battery pack charging device, characterized in that it has a stepped step 52 forming a step difference from each other.
 삭제delete 청구항 1에 있어서,
제1단자부(48)과 제2단자부(50)는 일측 편과 타측 편에 각각 배치되는 형태로 연결되는 것을 특징으로 하는 충전식 전동공구용 배터리팩 충전장치.
The method according to claim 1,
A battery pack charging device for a rechargeable power tool, characterized in that the first terminal portion 48 and the second terminal portion 50 are connected in a form disposed on one side and the other side, respectively.
 청구항 1 또는 청구항 3에 있어서,
상기 접속단자(46)의 배열 방향에 따른 단턱(52)의 위치에 따라 오진입하는 접속단자(46)의 단턱(52)이 가이드리브(56b)에 진입 저지되어 접속단자(46) 모두 완전한 진입이 이루어지지 않도록 상기 가이드리브(56a, 56b) 간에 높이(S1, S2)가 서로 다르게 형성되는 것을 특징으로 하는 충전식 전동공구용 배터리팩 충전장치.The method according to claim 1 or 3,
According to the position of the stepped step 52 according to the arrangement direction of the connection terminal 46, the stepped step 52 of the connection terminal 46 is prevented from entering the guide rib 56b, so that all of the connection terminals 46 completely enter. Rechargeable power tool battery pack charging device, characterized in that the height (S1, S2) is formed differently between the guide ribs (56a, 56b) to prevent this.
KR1020190020501A 2019-02-21 2019-02-21 battery charging device for charging type power tool KR102227357B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006067717A (en) * 2004-08-27 2006-03-09 Yupiteru Ind Co Ltd Charger
JP2009135110A (en) 2009-03-13 2009-06-18 Hitachi Koki Co Ltd Battery pack and combination of the battery pack and electrical tool
JP2009187953A (en) 2009-03-13 2009-08-20 Hitachi Koki Co Ltd Battery pack, electrical tool or combination of charger and battery pack

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101895333B1 (en) 2017-09-27 2018-10-05 계양전기 주식회사 Battery charging device for automatically separating battery from electric tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006067717A (en) * 2004-08-27 2006-03-09 Yupiteru Ind Co Ltd Charger
JP2009135110A (en) 2009-03-13 2009-06-18 Hitachi Koki Co Ltd Battery pack and combination of the battery pack and electrical tool
JP2009187953A (en) 2009-03-13 2009-08-20 Hitachi Koki Co Ltd Battery pack, electrical tool or combination of charger and battery pack

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