KR100664300B1 - Connector for multi-layer piezoelectric actuator - Google Patents

Connector for multi-layer piezoelectric actuator Download PDF

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KR100664300B1
KR100664300B1 KR1020050030535A KR20050030535A KR100664300B1 KR 100664300 B1 KR100664300 B1 KR 100664300B1 KR 1020050030535 A KR1020050030535 A KR 1020050030535A KR 20050030535 A KR20050030535 A KR 20050030535A KR 100664300 B1 KR100664300 B1 KR 100664300B1
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piezoelectric actuator
stacked piezoelectric
casing
stacked
input terminal
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KR1020050030535A
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KR20060108359A (en
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권용준
권정호
이동만
강두원
안규진
김영선
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주식회사 삼전
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/08—Shape of aft part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/40—Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/38—Keels
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

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  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

본 발명은 적층형 압전 액츄에이터 접속장치에 관한 것으로, 특히 본 발명은 기존의 납땜 방식의 직접접속방식에서 탈피하여 케이싱을 응용한 간접접속방식으로 변경하여 취성이 약한 적층형 압전 액츄에이터를 안정적으로 지지가능하고, 실장 및 기판과의 탈부착이 용이하며, 적층형 압전 액츄에이터의 실장 및 사용시 불량 발생율을 최소화한다.The present invention relates to a laminated piezoelectric actuator connection device, and in particular, the present invention can stably support a weakly brittle laminated piezoelectric actuator by changing from an existing soldering direct connection method to an indirect connection method using a casing. It is easy to attach and detach from the board and minimizes the incidence of defects when mounting and using the stacked piezoelectric actuator.

이를 위해 본 발명은 전기에너지에 의해 기계적 변위를 발생시키는 적층형 압전 액츄에이터에 전원을 입력받을 수 있도록 마련된 입력단자부와; 상기 적층형 압전 액츄에이터를 수용하는 수용부가 형성된 케이싱과; 상기 수용부에 상기 입력단자부와 대응하도록 마련된 접속단자부와; 및 상기 케이싱을 관통하여 상기 접속단자부에 접속된 리드선을 포함한다.To this end, the present invention includes an input terminal unit provided to receive power from a stacked piezoelectric actuator that generates mechanical displacement by electrical energy; A casing in which a receiving portion for receiving the stacked piezoelectric actuator is formed; A connection terminal portion provided to correspond to the input terminal portion in the accommodation portion; And a lead wire connected to the connection terminal portion through the casing.

Description

적층형 압전 액츄에이터용 접속장치 {CONNECTOR FOR MULTI-LAYER PIEZOELECTRIC ACTUATOR}Connecting device for stacked piezoelectric actuators {CONNECTOR FOR MULTI-LAYER PIEZOELECTRIC ACTUATOR}

도 1은 본 발명에 따른 적층형 압전 액츄에이터용 접속장치의 사시도이다.1 is a perspective view of a connecting apparatus for a stacked piezoelectric actuator according to the present invention.

도 2는 도 1의 결합사시도이다.2 is a perspective view of the combination of FIG.

도 3은 본 발명의 실시예에 따른 적층형 압전 액츄에이터용 접속장치의 사시도이다.3 is a perspective view of a connecting apparatus for a stacked piezoelectric actuator according to an embodiment of the present invention.

도 4는 본 발명의 다른 실시예에 따른 적층형 압전 액츄에이터용 접속장치의 결합사시도이다.4 is a combined perspective view of a connecting apparatus for a stacked piezoelectric actuator according to another embodiment of the present invention.

*도면의 주요 기능에 대한 부호의 설명** Description of the symbols for the main functions of the drawings *

10 : 적층형 압전 액츄에이터 11a, 11b, 11c : 입력단자부10: stacked piezoelectric actuator 11a, 11b, 11c: input terminal portion

20 : 케이싱 21 : 수용부20: casing 21: receiving portion

22a, 22b, 22b : 접속단자부 23a, 23b, 23c : 리드선22a, 22b, 22b: connecting terminal portion 23a, 23b, 23c: lead wire

24a, 24b, 24c : 관통홀24a, 24b, 24c: through hole

30 : 결합부재 40 : 지지부재30: coupling member 40: support member

본 발명은 적층형 압전 액츄에이터용 접속장치에 관한 것으로, 더욱 상세하게는 적층형 압전 액츄에이터와 기판사이의 탈부착 및 실장을 용이하게 할 수 있는 적층형 압전 액츄에이터용 접속장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for a laminated piezoelectric actuator, and more particularly, to a connecting device for a laminated piezoelectric actuator that can facilitate attachment and detachment between a stacked piezoelectric actuator and a substrate.

일반적으로, 적층형 압전 액츄에이터는 전기에너지를 기계에너지로 변환하는 압전 세라믹에 전기에너지를 가하여 기계적 변위를 발생시키기 위한 부품으로, 여러 장의 압전 세라믹을 병렬로 연결하여 층에 내부전극을 입히고, 서로 엇갈리게 외부전극을 연결한 후 인쇄회로기판에 장착하여 반복적인 진동을 발생시킨다. 이러한 적층형 압전 액츄에이터는 주로 광학장치, 마이크로펌프, 하드디스크(HDD), DVD 플레이어 등에 사용되고 있다.In general, a multilayer piezoelectric actuator is a component for generating mechanical displacement by applying electrical energy to a piezoelectric ceramic that converts electrical energy into mechanical energy. After connecting the electrodes, they are mounted on the printed circuit board to generate repetitive vibration. Such stacked piezoelectric actuators are mainly used in optical devices, micropumps, hard disks (HDDs), DVD players, and the like.

종래에는 여러 개의 압전세라믹이 적층된 적층형 압전 액츄에이터를 리드선을 이용하여 인쇄회로기판에 납땜하는 방식으로 적층형 압전 액츄에이터를 인쇄회로기판에 접속시키게 된다.Conventionally, a stacked piezoelectric actuator in which a plurality of piezoelectric ceramics are stacked is connected to a printed circuit board by soldering the printed circuit board using a lead wire.

하지만, 종래에는, 적층형 압전 액츄에이터를 인쇄회로기판에 직접 납땜하여 접속시키기 때문에 적층형 압전 액츄에이터의 반복적인 벤딩 작용으로 인해 납땜부위가 떨어질 우려가 있다. 이러한 경우, 인쇄회로기판을 포함한 전체 구조물이 불량 처리되어 재사용할 수 없으므로 상대적으로 비경제적인 문제점이 있다.However, in the related art, since the laminated piezoelectric actuator is directly soldered and connected to the printed circuit board, the soldering portion may fall due to the repeated bending action of the stacked piezoelectric actuator. In this case, there is a relatively uneconomical problem because the entire structure including the printed circuit board is poorly processed and cannot be reused.

또한, 통상 적층형 압전 액츄에이터는 다른 유사한 기능의 부품에 비하여 취성이 상대적으로 약하기 때문에 종래와 같이 적층형 압전 액츄에이터를 인쇄회로기판에 직접 접합하는 방식을 사용하게 되면, 열 손상에 의해 적층형 압전 액츄에이터가 파손될 수 있는 문제점이 있다.In addition, since the laminated piezoelectric actuator is generally weak in brittleness compared to other similar functional parts, if the laminated piezoelectric actuator is directly bonded to the printed circuit board as in the prior art, the laminated piezoelectric actuator may be damaged by thermal damage. There is a problem.

본 발명은 이러한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 적층형 압전 액츄에이터와 인쇄회로기판를 간접 접속시키는 방식으로 접속방식을 변경하여 적층형 압전 액츄에이터의 실장 및 사용시 불량 발생율을 최소화하면서도 불량시 용이하게 교체할 수 있는 적층형 압전 액츄에이터용 접속장치를 제공하는 것이다.The present invention is to solve this problem, the object of the present invention is to change the connection method to the indirect connection between the laminated piezoelectric actuator and the printed circuit board to minimize the failure rate when mounting and using the laminated piezoelectric actuator, while easily replacing the failure A connecting device for stacked piezoelectric actuators can be provided.

전술한 목적을 달성하기 위한 본 발명의 적층형 압전 액츄에이터는 전기에너지에 의해 기계적 변위를 발생시키는 적층형 압전 액츄에이터에 전원을 입력받을 수 있도록 마련된 입력단자부와; 상기 적층형 압전 액츄에이터를 수용하는 수용부가 형성된 케이싱과; 상기 수용부에 상기 입력단자부와 대응하도록 마련된 접속단자부와; 및 상기 케이싱을 관통하여 상기 접속단자부에 접속된 리드선을 포함한다.The laminated piezoelectric actuator of the present invention for achieving the above object comprises an input terminal unit provided to receive power to the laminated piezoelectric actuator which generates mechanical displacement by electrical energy; A casing in which a receiving portion for receiving the stacked piezoelectric actuator is formed; A connection terminal portion provided to correspond to the input terminal portion in the accommodation portion; And a lead wire connected to the connection terminal portion through the casing.

상기 수용부는 상기 적층형 압전 액츄에이터의 일단부를 수용하도록 오목하게 형성된 것을 특징으로 한다.The receiving portion is characterized in that it is formed concave to accommodate one end of the stacked piezoelectric actuator.

상기 접속단자부는 상기 수용부 내로 수용된 상기 적층형 압전 액츄에이터 일단부의 끝단을 지지하는 면과 상기 적층형 압전 액츄에이터의 측면을 지지하는 면 중 적어도 어느 하나의 면에 마련되는 것을 특징으로 한다.The connection terminal portion may be provided on at least one of a surface supporting an end of one end of the stacked piezoelectric actuator accommodated in the accommodation portion and a surface supporting a side surface of the stacked piezoelectric actuator.

상기 적층형 압전 액츄에이터의 일단부에 결합되는 ㄷ 자형의 결합부재와, 상기 결합부재에 결합된 상기 적층형 압전 액츄에이터를 상기 케이싱에 고정 지지하도록 상기 케이싱 내의 수용부에 마련되는 지지부재를 더 포함하는 것을 특징으로 한다.And a c-shaped coupling member coupled to one end of the stacked piezoelectric actuator, and a supporting member provided in an accommodating part of the casing to fix and support the stacked piezoelectric actuator coupled to the coupling member to the casing. It is done.

이하에서는 본 발명의 바람직한 실시예를 본 도면을 참조하여 상세하게 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

본 발명의 실시예에 따른 적층형 압전 액츄에이터용 접속장치는 도 1과 도 2에 도시된 바와 같이, 적층형 압전 액츄에이터(10)에 마련되는 입력단자부(11a,11b,11c)부와, 케이싱(20)과, 이 케이싱(20) 내에 적층형 압전 액츄에이터(10)의 일단부를 수용하도록 오목하게 형성된 수용부(21)와, 이 수용부(21)에 상기한 입력단자부(11a,11b,11c)부와 대응하도록 마련된 접속단자부(22a,22b,22c)와, 상기한 케이싱(20)을 관통하여 접속단자부(22a,22b,22c)에 접합된 리드선(23a,23b,23c)을 구비한다.As shown in FIGS. 1 and 2, a connecting device for a stacked piezoelectric actuator according to an embodiment of the present invention includes an input terminal part 11a, 11b, 11c provided in the stacked piezoelectric actuator 10, and a casing 20. And an accommodating portion 21 concave so as to accommodate one end of the stacked piezoelectric actuator 10 in the casing 20, and corresponding to the input terminal portions 11a, 11b, 11c described above in the accommodating portion 21. Connecting terminal portions 22a, 22b and 22c provided so as to pass through the casing 20 and lead wires 23a, 23b and 23c joined to the connecting terminal portions 22a, 22b and 22c.

상기한 적층형 압전 액츄에이터(10)는 제공된 전기에너지에 의해 기계적 변위를 발생시키기 위한 것으로, 수용부(21)에 수용되는 적층형 압전 액츄에이터(10)의 일단부에 소정간격의 여러 개의 입력단자부(11a,11b,11c)(일예로, 3개)로 이루어진 입력단자부(11a,11b,11c)부가 설치되어 있다.The stacked piezoelectric actuator 10 is for generating a mechanical displacement by the provided electrical energy, and at one end of the stacked piezoelectric actuator 10 accommodated in the accommodating portion 21, a plurality of input terminal portions 11a, Input terminal portions 11a, 11b, and 11c each of 11b and 11c (for example, three) are provided.

상기한 케이싱(20)은 폴리머 및 합성수지 등의 절연재료 이루어지며, 상기 케이싱(20)내에 형성된 수용부(21)는 소정길이와 폭을 가지며, 그 형상은 수용되어 삽입 지지되는 적층형 압전 액츄에이터(10)의 형상과 동일한 형상이다.The casing 20 is made of an insulating material such as polymer and synthetic resin, and the accommodating portion 21 formed in the casing 20 has a predetermined length and width, and the shape thereof is accommodated and inserted into the stacked piezoelectric actuator 10. It is the same shape as ().

상기한 접속단자부(22a,22b,22c)는 입력단자부(11a,11b,11c)부와의 전기적인 연결을 위한 것으로, 입력단자부(11a,11b,11c)부의 입력단자부(11a,11b,11c) 개수와 동일한 개수의 접속단자를 구비하며, 입력단자부(11a,11b,11c)들 간의 간격과 대응하는 간격을 유지하도록 설치된다. 이러한 접속단자부(22a,22b,22c)와 입력단 자부(11a,11b,11c)부 각각에 형성된 단자는 접촉을 용이하게 하기 위하여 접촉방향으로 돌출된 형태로 마련된다. 또한, 접속단자부(22a,22b,22c)와 입력단자부(11a,11b,11c)부는 적층형 압전 액츄에이터(10)의 일단부를 수용부(21)에 수용시키는 것에 의하여 접촉하게 된다.The connection terminal parts 22a, 22b, and 22c are for electrical connection with the input terminal parts 11a, 11b, and 11c, and the input terminal parts 11a, 11b, and 11c of the input terminal parts 11a, 11b, and 11c. It is provided to have the same number of connection terminals as the number, and to maintain the interval corresponding to the interval between the input terminal portion (11a, 11b, 11c). Terminals formed in each of the connection terminal parts 22a, 22b, and 22c and the input terminal parts 11a, 11b, and 11c are provided to protrude in the contact direction to facilitate contact. In addition, the connection terminal portions 22a, 22b, 22c and the input terminal portions 11a, 11b, 11c are brought into contact by accommodating one end of the stacked piezoelectric actuator 10 in the housing portion 21.

상기한 리드선(23a,23b,23c)은 기판을 통하여 공급되는 전원을 접속단자부(22a,22b,22c)에 인가할 수 있도록 하기 위하여 접속단자부(22a,22b,22c)를 기판에 전기적으로 연결하기 위한 것으로, 상기한 케이싱(20)의 하면을 관통하여 접속단자부(22a,22b,22c)에 접속된다. 이를 위해 리드선(23a,23b,23c)이 접속단자부(22a,22b,22c)에 용이하게 접속할 수 있도록 접속단자부(22a,22b,22c)에 대응하는 관통홀(24a,24b,24c)이 형성되어 있다.The lead wires 23a, 23b, and 23c electrically connect the connection terminal portions 22a, 22b, and 22c to the substrate so that power supplied through the substrate can be applied to the connection terminal portions 22a, 22b, and 22c. For this purpose, the lower surface of the casing 20 is connected to the connection terminal portions 22a, 22b, and 22c. To this end, through-holes 24a, 24b and 24c corresponding to the connection terminal portions 22a, 22b and 22c are formed so that the lead wires 23a, 23b and 23c can be easily connected to the connection terminal portions 22a, 22b and 22c. have.

조립순서를 살펴보면, 먼저, 관통홀(24a,24b,24c)에 리드선(23a,23b,23c)을 삽입 고정시킨 후 리드선(23a,23b,23c)의 상부측에 전도성 접착제를 이용하여 접속단자부(22a,22b,22c)를 형성하여 리드선(23a,23b,23c)을 통해 기판과 접속단자부(22a,22b,22c)가 서로 전기적으로 연결 가능하게 한다.In the assembly sequence, first, the lead wires 23a, 23b, and 23c are inserted into and fixed to the through-holes 24a, 24b, and 24c, and then the connection terminal part (using the conductive adhesive on the upper side of the lead wires 23a, 23b, and 23c) is used. 22a, 22b and 22c are formed to allow the substrate and the connection terminal portions 22a, 22b and 22c to be electrically connected to each other through the lead wires 23a, 23b and 23c.

그리고, 리드선(23a,23b,23c)을 기판에 접속시켜 케이싱(20)을 기판에 고정 설치한 후 입력단자부(11a,11b,11c)가 마련된 적층형 압전 액츄에이터(10)를 수용부(21)에 꼽음으로서 입력단자부(11a,11b,11c)부와 접속단자를 접촉시켜 서로 전기적으로 연결 가능하게 한다.Then, the lead wires 23a, 23b, and 23c are connected to the substrate, and the casing 20 is fixedly installed on the substrate. Then, the stacked piezoelectric actuator 10 having the input terminal portions 11a, 11b, and 11c is provided to the accommodating portion 21. By plugging in, the input terminal portions 11a, 11b, 11c and the connecting terminals are brought into contact with each other so as to be electrically connected to each other.

이에 따라, 적층형 압전 액츄에이터(10)를 리드선(23a,23b,23c)을 통해 기판에 직접 납땜하는 직접 접속방식을 사용하지 않고, 케이싱(20)을 제작하여 적층형 압전 액츄에이터(10)를 삽입한 후 리드선(23a,23b,23c)과 결합하는 간접 접속방식으로 제작함으로서 적층형 압전 액츄에이터(10)가 반복 진동하더라도 불량 발생하는 것을 줄일 수 있으면서도 불량 발생시, 기판전체가 불량 처리되지 않기 때문에 경제적이다. 즉, 적층형 압전 액츄에이터(10)를 기판에 직접 납땜하여 설치하는 대신에 적층형 액츄에이터(10)용 접속장치를 이용하여 적층형 압전 액츄에이터(10)를 기판에 간접 설치함으로서 적층형 압전 액츄에이터(10)의 설치시 납땜에 의해 발생된 열에 의해 적층형 압전 액츄에이터(10)가 불량 발생하는 것을 방지할 수 있고, 적층형 압전 액츄에터의 사용시 진동이 발생하더라도 적층형 압전 액츄에이터(10)가 수용부(21)에 삽입 지지되므로, 불량발생율을 최소화할 수 있게 된다. 또한, 적층형 압전 액츄에이터(10)만이 불량 발생한 경우에도 전체 구조물을 교체할 필요없이 적층형 압전 액츄에이터(10)만을 손쉽게 교체할 수 있어 상대적으로 경제적이다.Accordingly, the casing 20 is manufactured by inserting the laminated piezoelectric actuator 10 without using the direct connection method of directly soldering the laminated piezoelectric actuator 10 to the substrate through the lead wires 23a, 23b, and 23c. It is economical because the entire piezoelectric actuator 10 is reduced by the indirect connection method combined with the lead wires 23a, 23b, and 23c, and the entire substrate is not treated badly. That is, instead of directly soldering the stacked piezoelectric actuator 10 to the substrate, the stacked piezoelectric actuator 10 is indirectly installed on the substrate using the connecting device for the stacked actuator 10 to install the stacked piezoelectric actuator 10. Since the heat generated by the solder prevents the stacked piezoelectric actuator 10 from being defective, and even when vibration occurs when the stacked piezoelectric actuator is used, the stacked piezoelectric actuator 10 is inserted into and supported by the receiving portion 21. Therefore, the failure rate can be minimized. In addition, even if only the stacked piezoelectric actuator 10 is defective, only the stacked piezoelectric actuator 10 may be easily replaced without having to replace the entire structure, and thus it is relatively economical.

도 3은 본 발명의 실시예에 따른 적층형 압전 액츄에이터용 접속장치의 사시도이다. 도 3에 도시된 바와 같이, 케이싱(20‘)의 수용부(21’)에 마련된 접속단자부(22a',22b')를 도 2와 같이, 수용부(21‘)의 하면에 설치하는 대신에 측면에 설치할 수 있다. 이는 적층형 압전 액츄에이터(10’)의 진동방향이 상하방향으로 진동하기 때문에 접속단자부(22a',22b')와 입력단자부(11a',11b')의 접촉을 좀더 견고히 할 수 있다. 이러한 경우, 적층형 압전 액츄에이터(10')에 형성된 입력단자부(11a',11b')는 접속단자부(22a',22b')와 대응하도록 적층형 압전 액츄에이터(10')의 측면에 형성되게 된다.3 is a perspective view of a connecting apparatus for a stacked piezoelectric actuator according to an embodiment of the present invention. As shown in FIG. 3, instead of providing the connecting terminal portions 22a 'and 22b' provided in the accommodating portion 21 'of the casing 20' on the lower surface of the accommodating portion 21 'as shown in FIG. Can be installed on the side. Since the vibration direction of the stacked piezoelectric actuator 10 'vibrates in the up and down direction, the contact between the connection terminal portions 22a' and 22b 'and the input terminal portions 11a' and 11b 'can be further strengthened. In this case, the input terminal portions 11a 'and 11b' formed on the stacked piezoelectric actuators 10 'are formed on the side surfaces of the stacked piezoelectric actuators 10' so as to correspond to the connection terminal portions 22a 'and 22b'.

도 4에 도시된 바와 같이, 적층형 압전 액츄에이터(10‘)가 반복진동에 의해서도 케이싱(20’)내의 수용부(21‘)에 좀더 견고히 고정될 수 있도록 적층형 압전 액츄에이터(10’)의 하단부에 결합되는 “ㄷ”자형의 결합부재(30)와, 케이싱(20‘) 내의 수용부(21’)의 각 모서리 측에 마련되어 상기한 결합부재(30)를 고정 지지하는 지지부재(40)를 더 구비할 수 있다.As shown in FIG. 4, the stacked piezoelectric actuator 10 ′ is coupled to the lower end of the stacked piezoelectric actuator 10 ′ so that the stacked piezoelectric actuator 10 ′ can be more firmly fixed to the receiving portion 21 ′ in the casing 20 ′ even by repeated vibration. It is further provided with a "c" shaped coupling member 30 and a support member 40 provided on each corner side of the receiving portion 21 'in the casing 20' to fix and support the coupling member 30. can do.

이상에서 상세히 설명한 바와 같이, 본 발명은 기존의 납땜 방식의 직접접속방식에서 탈피하여 케이싱을 응용한 간접접속방식으로 변경하여 취성이 약한 적층형 압전 액츄에이터를 안정적으로 지지가능하고, 실장 및 기판과의 탈부착이 용이하며, 적층형 압전 액츄에이터의 실장 및 사용시 불량 발생율을 최소화할 수 있는 효과가 있다.As described in detail above, the present invention can stably support a weak brittle laminated piezoelectric actuator by changing from an existing soldering direct connection method to an indirect connection method using a casing, and mounting and detaching with a substrate. This is easy, and there is an effect that can minimize the failure rate during mounting and use of the stacked piezoelectric actuator.

또한 본 발명은 적층형 압전 액츄에이터의 형상 및 크기에 따라 케이싱의 구조변경이 가능하며, 케이싱의 접합위치 또는 응용형태에 따라 원하는 위치에 접합 가능한 효과가 있다.In addition, the present invention can change the casing structure according to the shape and size of the stacked piezoelectric actuator, there is an effect that can be bonded to the desired position according to the bonding position or application form of the casing.

또한, 본 발명은 적층형 압전 액츄에이터를 간접접속방식으로 기판에 접속시키기 때문에 열 충격에 의한 적층형 압전 액츄에이터의 불량발생율을 최소화할 수 있는 효과가 있다.In addition, since the present invention connects the laminated piezoelectric actuator to the substrate in an indirect connection method, there is an effect of minimizing the failure rate of the laminated piezoelectric actuator due to thermal shock.

Claims (4)

전기에너지에 의해 기계적 변위를 발생시키는 적층형 압전 액츄에이터에 전원을 입력받을 수 있도록 마련된 입력단자부와; 상기 적층형 압전 액츄에이터를 수용하는 수용부가 형성된 케이싱과; 상기 수용부에 상기 입력단자부와 대응하도록 마련된 접속단자부와; 및 상기 케이싱을 관통하여 상기 접속단자부에 접속된 리드선을 포함하는 적층형 압전 액츄에이터용 접속장치.An input terminal unit provided to receive power from a stacked piezoelectric actuator that generates mechanical displacement by electrical energy; A casing in which a receiving portion for receiving the stacked piezoelectric actuator is formed; A connection terminal portion provided to correspond to the input terminal portion in the accommodation portion; And a lead wire connected to the connection terminal portion through the casing. 제1항에 있어서, 상기 수용부는 상기 적층형 압전 액츄에이터의 일단부를 수용하도록 오목하게 형성된 것을 특징으로 하는 적층형 압전 액츄에이터용 접속장치.The connecting device for a stacked piezoelectric actuator according to claim 1, wherein the accommodation portion is formed to be concave so as to receive one end of the stacked piezoelectric actuator. 제2항에 있어서, 상기 접속단자부는 상기 수용부 내로 수용된 상기 적층형 압전 액츄에이터 일단부의 끝단을 지지하는 면과 상기 적층형 압전 액츄에이터의 측면을 지지하는 면 중 적어도 어느 하나의 면에 마련되는 것을 특징으로 하는 적층형 압전 액츄에이터용 접속장치.The method of claim 2, wherein the connection terminal portion is provided on at least one of the surface for supporting the end of the end of the one end of the laminated piezoelectric actuator accommodated into the receiving portion and the side for supporting the side of the laminated piezoelectric actuator. Connection device for stacked piezoelectric actuators. 제1항에 있어서, 상기 적층형 압전 액츄에이터의 일단부에 결합되는 ㄷ 자형의 결합부재와, 상기 결합부재에 결합된 상기 적층형 압전 액츄에이터를 상기 케이싱에 고정 지지하도록 상기 케이싱 내의 수용부에 마련되는 지지부재를 더 포함하 는 것을 특징으로 하는 적층형 압전 액츄에이터용 접속장치.The support member of claim 1, further comprising a c-shaped coupling member coupled to one end of the stacked piezoelectric actuator and an accommodating part in the casing to fix and support the stacked piezoelectric actuator coupled to the coupling member to the casing. Connection device for a stacked piezoelectric actuator further comprising a.
KR1020050030535A 2005-04-13 2005-04-13 Connector for multi-layer piezoelectric actuator KR100664300B1 (en)

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