KR100343693B1 - Apparatus for protecting compressor from overload - Google Patents

Apparatus for protecting compressor from overload Download PDF

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Publication number
KR100343693B1
KR100343693B1 KR1019990049670A KR19990049670A KR100343693B1 KR 100343693 B1 KR100343693 B1 KR 100343693B1 KR 1019990049670 A KR1019990049670 A KR 1019990049670A KR 19990049670 A KR19990049670 A KR 19990049670A KR 100343693 B1 KR100343693 B1 KR 100343693B1
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South Korea
Prior art keywords
overload
cluster
pin type
type
lead wire
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KR1019990049670A
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Korean (ko)
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KR20010046073A (en
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이윤학
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엘지전자주식회사
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Publication of KR20010046073A publication Critical patent/KR20010046073A/en
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Publication of KR100343693B1 publication Critical patent/KR100343693B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

본 발명은 밀폐형 압축기의 과부하 차단 장치에 관한 것으로서, 본 발명은 모터와 연결된 리드와이어의 끝단에 설치된 클러스터 또는 상기 클러스터에 결합되는 핀타입 과부하방지구 중 어느 한쪽의 일측에 소정 형태의 연결홈이 형성되고, 상기 클러스터와 핀타입 과부하방지구 중 다른 한쪽에 상기 연결홈에 삽입, 결합되는 돌출부가 형성되어 상기 클러스터와 핀타입 과부하방지구가 착탈식으로 결합/분리될 수 있게 됨으로써 리드와이어의 종류에 따른 과부하방지구의 선택의 폭이 넓어지는 동시에 상기 핀타입 과부하방지구의 범용성이 높아져 압축기의 제작에 필요한 총비용이 저감되도록 한 것이다.The present invention relates to an overload blocking device for a hermetic compressor, and the present invention provides a connection groove of a predetermined type on either side of a cluster or a pin type overload prevention device coupled to the cluster. And a protruding portion inserted into and coupled to the connection groove on the other side of the cluster and the pin type overload protector so that the cluster and the pin type overload protector can be detachably coupled / separated according to the type of lead wire. The choice of the overload protector is broadened and the generality of the pin type overload protector is increased to reduce the total cost required for the manufacture of the compressor.

Description

밀폐형 압축기의 과부하 차단 장치{APPARATUS FOR PROTECTING COMPRESSOR FROM OVERLOAD}Overload breaking device of hermetic compressor {APPARATUS FOR PROTECTING COMPRESSOR FROM OVERLOAD}

본 발명은 압축기에 과부하가 걸리면 압축기를 과부하로부터 보호하도록 모터에 인가되는 전원을 차단하여 압축기를 정지시키는 밀폐형 압축기의 과부하 차단 장치에 관한 것이다.The present invention relates to an overload circuit breaker of a hermetic compressor which stops the compressor by shutting off power applied to the motor to protect the compressor from overload when the compressor is overloaded.

일반적인 밀폐형 압축기는 크게 소정의 내부체적을 갖는 케이스와, 상기 케이스 내부에 설치되어 구동력을 발생시키는 전동기구부와, 상기 전동기구부의 구동력을 전달받아 냉매가스를 압축하는 압축기구부로 구성되는 바, 상기 전동기구부의 고정자에는 압축기에 과부하가 걸리면 모터에 인가되는 전원을 차단하여 압축기를 정지시킴으로써 압축기를 과부하로부터 보호하는 과부하방지구가 설치되어 있다.A general hermetic compressor includes a case having a large internal volume, an electric mechanism unit installed inside the case to generate a driving force, and a compressor mechanism unit compressing refrigerant gas by receiving a driving force of the electric mechanism unit. The stator of the mechanism part is provided with an overload prevention device that protects the compressor from overload by shutting off the power applied to the motor when the compressor is overloaded.

상기한 과부하방지구는 통상적으로 모터의 코일과 연결된 리드와이어에 설치되어 압축기에 과부하가 걸리면 작동되어 상기 리드와이어를 통해 모터에 인가되는 전원을 차단하도록 되어 있다. 이때, 상기 리드와이어를 통해 모터에 인가되는 전원은 케이스에 설치된 밀봉단자부를 통해 상기 리드와이어로 전달된 외부전원이다.The overload protector is typically installed on a lead wire connected to the coil of the motor to operate when the compressor is overloaded so as to cut off power applied to the motor through the lead wire. In this case, the power applied to the motor through the lead wire is an external power delivered to the lead wire through a sealing terminal installed in the case.

상기한 바와 같은 과부하 차단 장치에서 상기한 리드와이어에는 일반적으로 도 1에 도시된 바와 같이 끝단에 클러스터(3)가 장착된 클러스터타입 리드와이어(1)가 사용되거나, 도 2에 도시된 바와 같이 끝단에 각각 개별적으로 수용핀(7a, 7b, 7c; 7)이 장착된 핀타입 리드와이어(5)가 사용된다.In the overload cut-off device as described above, the lead wires generally include a cluster type lead wire 1 having a cluster 3 mounted at an end thereof as shown in FIG. 1, or an end thereof as shown in FIG. 2. The pin type lead wires 5 each of which are individually equipped with receiving pins 7a, 7b, 7c; 7 are used.

또한, 상기한 과부하방지구에는 도 3에 도시된 바와 같이 리드와이어(1, 5)에삽입 설치되는 코일삽입타입 과부하방지구(8)가 사용되거나, 도 4에 도시된 바와 같이 리드와이어(1, 5)와 밀봉단자부(13) 사이에 설치된 핀타입 과부하방지구(9)가 사용된다.In addition, the above-described overload protector is a coil insertion type overload protector 8 is inserted into the lead wires (1, 5) as shown in FIG. 3, or the lead wire (1) as shown in FIG. 5) and a pin type overload protector 9 provided between the sealing terminal portion 13 is used.

상기와 같은 과부하방지구들 중에서 코일삽입타입 과부하방지구(8)는 상기한 클러스터타입 리드와이어(1)와 핀타입 리드와이어(5)에 모두 설치할 수 있으나, 상기 핀타입 과부하방지구(9)는 핀타입 리드와이어(5)에만 설치가 가능하고 클러스터타입 리드와이어(1)에는 설치가 불가능하다.Among the overload protection devices described above, the coil insertion type overload protection device 8 may be installed in both the cluster type lead wire 1 and the pin type lead wire 5, but the pin type overload protection device 9 may be It is possible to install only on the pin type lead wire 5 and not to the cluster type lead wire 1.

즉, 상기한 코일삽입타입 과부하방지구(8)를 설치하는 경우에는 도 5 및 도 6에 도시된 바와 같이, 리드와이어(1, 5)에 코일삽입타입 과부하방지구(8)를 삽입 설치하고, 밀봉단자부(13)의 출력단자(13a)들에 캡(14)을 장착하여 상기 캡(14)에 수용핀(7)을 결합시키거나 상기 밀봉단자부(13)의 출력단자(13a)들을 클러스터(3)의 홀(3a)에 삽입함으로써 상기 밀봉단자부(13)와 리드와이어(1, 5) 및 코일삽입타입 과부하방지구(8)를 전기적으로 연결한다.That is, when the coil insertion type overload protection device 8 is installed, as shown in FIGS. 5 and 6, the coil insertion type overload protection device 8 is inserted into the lead wires 1 and 5. The cap 14 is attached to the output terminals 13a of the sealing terminal part 13 to couple the receiving pin 7 to the cap 14 or to cluster the output terminals 13a of the sealing terminal part 13. The sealing terminal portion 13, the lead wires 1 and 5, and the coil insertion type overload protector 8 are electrically connected by inserting the holes 3a in (3).

또한, 상기한 핀타입 과부하방지구(9)를 설치하는 경우에는 핀타입 과부하방지구(9)의 일측에 형성된 입력단자(9a)들에 밀봉단자부(13)의 출력단자(13a)들을 결합시키고 핀타입 과부하방지구(9)의 타측에 형성된 출력단자(9b)들에 핀타입 리드와이어(5)의 수용핀(7)들을 결합함으로써 상기 밀봉단자부(13)와 핀타입 과부하방지구(9) 및 핀타입 리드와이어(5)를 전기적으로 연결한다.In addition, in the case of installing the pin type overload protector 9, the output terminal 13a of the sealing terminal portion 13 is coupled to the input terminals 9a formed at one side of the pin type overload protector 9, The sealing terminal portion 13 and the pin type overload protector 9 by coupling the receiving pins 7 of the pin type lead wire 5 to the output terminals 9b formed on the other side of the pin type overload protector 9. And pin type lead wires 5 electrically connected thereto.

그런데, 상기한 클러스터타입 리드와이어(1)에 핀타입 과부하방지구(9)를 설치하고자 하는 경우에는 상기한 핀타입 과부하방지구(9)와 클러스터(3)의 결합이 구조적으로 불가능하기 때문에 상기한 클러스터타입 리드와이어(1), 핀타입 과부하방지구(9), 밀봉단자부(13)를 전기적으로 연결시킬 수 없게 된다.However, when the pin type overload protection device 9 is to be installed in the cluster type lead wire 1, the coupling between the pin type overload protection device 9 and the cluster 3 is structurally impossible. The cluster type lead wire 1, the pin type overload protection device 9, and the sealing terminal portion 13 cannot be electrically connected.

따라서, 종래에는 리드와이어의 종류에 따라 그에 알맞은 타입의 과부하방지구를 선택해야만 하여 상기 과부하방지구에 대한 선택의 폭이 크게 제한되고, 상기 핀타입 과부하방지구(9)를 모든 종류의 리드와이어에 적용할 수 없게 되어 핀타입 과부하방지구(9)의 호환성이 떨어지게 되며, 이로 인해 압축기의 제작에 필요한 총비용이 증가되는 문제점이 있었다.Therefore, in the related art, an appropriate type of overload protection device must be selected according to the type of lead wires, so that the selection range for the overload protection device is greatly limited, and the pin type overload protection device 9 is used for all types of lead wires. It can not be applied to the pin-type overload protection device 9 is incompatible, thereby increasing the total cost required for the manufacture of the compressor.

상기한 바와 같은 문제점을 감안하여 안출한 본 발명의 목적은, 리드와이어의 종류에 따른 과부하방지구의 선택의 폭을 넓히는 동시에 상기 과부하방지구의 범용성을 높여 압축기의 제작에 필요한 총비용을 저감할 수 있도록 하는 밀폐형 압축기의 과부하 차단 장치를 제공함에 있다.The object of the present invention devised in view of the above-described problems is to increase the versatility of the overload protector according to the type of lead wire and increase the generality of the overload protector so as to reduce the total cost required for the manufacture of the compressor. An overload blocking device for a hermetic compressor is provided.

도 1은 일반적인 클러스터타입 리드와이어가 도시된 정면도,1 is a front view showing a typical cluster type lead wire,

도 2는 일반적인 핀타입 리드와이어가 도시된 정면도,Figure 2 is a front view showing a typical pin type lead wire,

도 3은 일반적인 코일삽입타입 과부하방지구가 도시된 정면도,Figure 3 is a front view showing a typical coil insertion type overload protector,

도 4는 일반적인 핀타입 과부하방지구가 도시된 정면도,Figure 4 is a front view showing a typical pin type overload protector,

도 5는 상기한 핀타입 리드와이어와 코일삽입타입 과부하방지구가 결합된 상태가 도시된 구성도,5 is a configuration diagram showing a state in which the pin-type lead wire and the coil insertion type overload protector are coupled to each other;

도 6은 상기한 클러스터타입 리드와이어와 코일삽입타입 과부하방지구가 결합된 상태가 도시된 구성도,6 is a configuration diagram illustrating a state in which the cluster type lead wire and the coil insertion type overload protector are coupled to each other;

도 7은 본 발명에 따른 밀폐형 압축기의 과부하 차단 장치가 도시된 부분 단면도,7 is a partial cross-sectional view showing an overload blocking device of a hermetic compressor according to the present invention;

도 8은 본 발명에 의한 클러스터타입 리드와이어와 핀타입 과부하방지구의 결합관계가 도시된 분해사시도이다.8 is an exploded perspective view illustrating a coupling relationship between a cluster type lead wire and a pin type overload protector according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

53 : 밀봉단자부 55 : 핀타입 과부하방지구53: sealing terminal part 55: pin type overload protection

56 : 돌출부 57 : 클러스터타입 리드와이어56: protrusion 57: cluster type lead wire

58 : 클러스터 59 : 연결홈58: cluster 59: connection groove

상기한 바와 같은 본 발명의 목적을 달성하기 위하여, 압축기의 상부캡에 설치된 밀봉단자부에 결합된 내장형 핀타입 과부하방지구와 모터와 연결된 리드와이어의 끝단에 장착된 클러스터가 착탈식으로 서로 결합될 수 있도록 구성된 것을 특징으로 하는 밀폐형 압축기의 과부하 차단 장치가 제공된다.In order to achieve the object of the present invention as described above, the built-in pin type overload protector coupled to the sealing terminal portion installed in the upper cap of the compressor and the cluster mounted on the end of the lead wire connected to the motor is configured to be detachably coupled to each other. Provided is an overload blocking device for a hermetic compressor.

이하, 본 발명의 실시 예를 첨부한 도면을 참조하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

도 7은 본 발명에 따른 밀폐형 압축기의 과부하 차단 장치가 도시된 부분 단면도이고, 도 8은 본 발명에 의한 클러스터타입 리드와이어와 핀타입 과부하방지구의 결합관계가 도시된 분해사시도이다.7 is a partial cross-sectional view showing an overload blocking device of the hermetic compressor according to the present invention, Figure 8 is an exploded perspective view showing a coupling relationship between the cluster type lead wire and the pin type overload protection device according to the present invention.

상기한 도 7 및 도 8을 참조하면, 본 발명에 따른 밀폐형 압축기의 과부하 차단 장치는 압축기의 상부캡(51)의 밀봉단자부(53)에 결합된 내장형 핀타입 과부하방지구(55)와 클러스터타입 리드와이어(57)의 끝단에 장착된 클러스터(58)가 착탈식으로 서로 결합/분리될 수 있도록 되어 있다.7 and 8, the overload blocking device of the hermetic compressor according to the present invention is a built-in pin type overload protection device 55 and a cluster type coupled to the sealing terminal portion 53 of the upper cap 51 of the compressor. The clusters 58 mounted at the ends of the lead wires 57 are detachably coupled to and separated from each other.

즉, 상기 클러스터(58)의 일측에는 소정 형태의 연결홈(59)이 형성되고, 상기 클러스터(58)와 결합되는 핀타입 과부하방지구(55)의 일측에는 상기 연결홈(59)에 삽입, 결합되는 돌출부(56)가 형성되어 상기 클러스터(58)와 핀타입 과부하방지구(55)가 서로 용이하게 결합/분리되도록 되어 있다.That is, one side of the cluster 58 is formed with a connection groove 59 of a predetermined shape, and one side of the pin type overload protection device 55 coupled with the cluster 58 is inserted into the connection groove 59, Protruding portion 56 is formed to be coupled so that the cluster 58 and the pin type overload protector 55 are easily coupled / separated from each other.

다른 실시 예에 따르면, 상기 핀타입 과부하방지구(55)의 일측에 연결홈이 형성되고, 상기 클러스터(58)의 일측에 상기 연결홈에 삽입, 결합되는 돌출부가 형성될 수도 있다.According to another embodiment, a connection groove may be formed at one side of the pin type overload protector 55, and a protrusion may be formed at one side of the cluster 58 to be inserted into and coupled to the connection groove.

여기서, 상기 핀타입 과부하방지구(55)에는 외부전원과 연결되도록 압축기의 상부캡(51)에 설치된 밀봉단자부(53)의 출력단자(53a)들에 결합되는 입력단자(55a)들이 형성되고, 상기한 클러스터타입 리드와이어(57)가 아닌 핀타입 리드와이어에 설치되는 경우 상기 핀타입 리드와이어의 끝단에 장착된 수용핀이 결합될 수 있는 출력단자(55b)들도 형성되어 있다.Here, the pin type overload protector 55 is provided with input terminals 55a coupled to the output terminals 53a of the sealing terminal portion 53 installed in the upper cap 51 of the compressor so as to be connected to an external power source. When installed in the pin type lead wires other than the cluster type lead wires 57, output terminals 55b may also be formed to which the receiving pins mounted at the ends of the pin type lead wires can be coupled.

또한, 상기 클러스터타입 리드와이어(57)는 모터의 코일에 연결되어 상기 밀봉단자부(53)와 핀타입 과부하방지구(55)를 통해 전달된 외부전원을 상기 모터에 인가하도록 되어 있으며, 상기 클러스터(58)에는 핀타입 과부하방지구(55)가 아닌 코일삽입타입 과부하방지구가 설치되는 경우 밀봉단자부(53)의 출력단자(53a)들이 삽입될 수 있도록 홀(58a)들이 형성되어 있다.In addition, the cluster type lead wire 57 is connected to the coil of the motor to apply external power transmitted through the sealing terminal part 53 and the pin type overload protector 55 to the motor. 58 is provided with holes 58a so that the output terminals 53a of the sealing terminal part 53 can be inserted when the coil insertion type overload protection device is installed, not the pin type overload protection device 55.

상기한 바와 같이 핀타입 과부하방지구(55)와 클러스터타입 리드와이어(57)가 착탈식으로 결합된 본 발명의 과부하 차단 장치에서는, 압축기에 과부하가 걸리면 핀타입 과부하방지구(55)가 작동되어 밀봉단자부(53)에서 클러스터타입 리드와이어(57)로 전달되는 전원이 차단됨으로써 모터에 인가되는 전원이 차단되어 압축기가 정지된다.In the overload breaker of the present invention in which the pin type overload protector 55 and the cluster type lead wire 57 are detachably coupled as described above, the pin type overload protector 55 is operated and sealed when the compressor is overloaded. Since the power transmitted from the terminal portion 53 to the cluster type lead wire 57 is cut off, the power applied to the motor is cut off and the compressor is stopped.

이상에서 설명한 바와 같이 본 발명에 따른 밀폐형 압축기의 과부하 차단 장치는, 클러스터타입 리드와이어(57)의 클러스터(58)와 핀타입 과부하방지구(55)를 착탈식으로 서로 결합/분리시킬 수 있게 되어 상기 핀타입 과부하방지구(55)가 클러스터타입 리드와이어(57)와 핀타입 리드와이어에 모두 자유롭게 적용될 수 있게 되므로 리드와이어의 종류에 따른 과부하방지구의 선택의 폭이 넓어지는 동시에 상기 핀타입 과부하방지구(55)의 범용성이 높아져 압축기의 제작에 필요한 총비용이 저감되는 이점이 있다.As described above, the overload blocking device of the hermetic compressor according to the present invention can detach / combine the cluster 58 and the pin type overload protector 55 of the cluster type lead wire 57 with each other in a detachable manner. Since the pin type overload protector 55 can be freely applied to both the cluster type lead wire 57 and the pin type lead wire, the selection of the overload protector according to the type of the lead wire is widened, and the pin type overload protector The versatility of the 55 increases, so that the total cost required for the manufacture of the compressor is reduced.

뿐만 아니라, 본 발명은 상기 클러스터타입 리드와이어(57)와 핀타입 과부하방지구(55)가 연결홈(59)과 돌출부(56)의 결합에 의하여 아주 쉽게 서로 결합되므로 생산라인에서의 조립작업이 용이한 이점이 있다.In addition, the present invention is because the cluster type lead wire 57 and the pin type overload protector 55 is very easily coupled to each other by the coupling of the connecting groove 59 and the protrusion 56, the assembly work in the production line is There is an easy advantage.

Claims (2)

압축기의 상부캡에 설치된 밀봉단자부에 결합된 내장형 핀타입 과부하방지구와 모터와 연결된 리드와이어의 끝단에 장착된 클러스터가 착탈식으로 서로 결합될 수 있도록 구성된 것을 특징으로 하는 밀폐형 압축기의 과부하 차단 장치.An overload blocking device for a hermetic compressor, characterized in that the built-in pin type overload protector coupled to the sealing terminal installed on the upper cap of the compressor and the cluster mounted at the end of the lead wire connected to the motor can be detachably coupled to each other. 제 1항에 있어서,The method of claim 1, 상기 핀타입 과부하방지구와 클러스터 중 어느 한쪽의 일측에는 소정 형태의 연결홈이 형성되고, 상기 핀타입 과부하방지구와 클러스터 중 다른 한쪽에는 상기 연결홈에 삽입, 결합되는 돌출부가 형성된 것을 특징으로 하는 밀폐형 압축기의 과부하 차단 장치.One side of the pin-type overload protector and the cluster is formed a connection groove of a predetermined shape, the other of the pin-type overload protector and the cluster is a hermetic compressor characterized in that the protrusion is inserted, coupled to the connecting groove is formed Overload breaker.
KR1019990049670A 1999-11-10 1999-11-10 Apparatus for protecting compressor from overload KR100343693B1 (en)

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