KR950001436Y1 - Power circuit for electric motor - Google Patents

Power circuit for electric motor Download PDF

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Publication number
KR950001436Y1
KR950001436Y1 KR92013646U KR920013646U KR950001436Y1 KR 950001436 Y1 KR950001436 Y1 KR 950001436Y1 KR 92013646 U KR92013646 U KR 92013646U KR 920013646 U KR920013646 U KR 920013646U KR 950001436 Y1 KR950001436 Y1 KR 950001436Y1
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KR
South Korea
Prior art keywords
terminals
resin
stator
stator coil
connector
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KR92013646U
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Korean (ko)
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KR940004439U (en
Inventor
이병학
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이헌조
주식회사 금성사
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Priority to KR92013646U priority Critical patent/KR950001436Y1/en
Publication of KR940004439U publication Critical patent/KR940004439U/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0854—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load responsive to rate of change of current, couple or speed, e.g. anti-kickback protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current

Abstract

내용 없음.No content.

Description

수지몰드 전동기의 온도과승 방지장치Thermal cut-out device of resin mold motor

제1도는 종래 수지몰드 전동기의 종단면도.1 is a longitudinal sectional view of a conventional resin mold motor.

제2도는 종래 수지몰드 전동기의 성형시를 나타낸 종단면도.2 is a longitudinal sectional view showing a molding time of a conventional resin mold electric motor.

제3도는 종래 고정자 코일에 온도과승방지구를 묶음실로 묶어놓은 상태도.3 is a state in which the temperature protection device is tied in a bundle chamber in a conventional stator coil.

제4도는 종래 온도과승 방지구를 나타낸 종단면도.Figure 4 is a longitudinal cross-sectional view showing a conventional thermal protector.

제5도는 본고안 온도과승방지 장치의 요부 분해사시도.5 is an exploded perspective view showing the main parts of the thermal cut-out device of the present invention.

제6도는 본고안 장치가 수지몰드 전동기에 장착된 상태도.6 is a state in which the present device is mounted on a resin mold electric motor.

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

1 : 고정자 3 : 고정자코일1: stator 3: stator coil

11 : 컨넥터 12 : 온도과승방지구11: connector 12: overheat protection

13a, 13c, 14a, 14c, 17a, 17b : 단자 13b, 14b : 예비단자13a, 13c, 14a, 14c, 17a, 17b: terminals 13b and 14b: spare terminals

16 : 수지16: resin

본 고안은 모터의 회전시에 구속등의 내. 외부적 운전 조건에 따라 고정자 코일에 온도가 상승되는것을 방지하기위해 설치되는 수지몰드 전동기의 온도과승방지장치에 관한 것으로서, 좀더 구체적으로는 수지몰드 사출 성형시에 바이메탈 및 접점등이 손상되는것을 미연에 방지시킬 수 있도록 한것이다.The present invention constrains such as restraint when the motor rotates. The present invention relates to a temperature rise prevention device of a resin mold motor which is installed to prevent a temperature rise in a stator coil according to external operating conditions. More specifically, the bimetal and the contact point are not damaged when the resin mold is injection molded. To prevent it.

일반적으로 수지몰드 전동기는 제1도와 같은 형태로서, 고정자(1)의 내부에 회전자(2)를 설치하여 고정자(1)에 감긴 고정자코일(3)에 전원을 공급하기 위한 리드선(4)을 외부로 인출되도록 한다음 이를 수지로 몰딩하여 고정자 몰드(5)를 구성하도록 되어 있다.In general, the resin mold electric motor has a shape similar to that of FIG. 1 and includes a lead wire 4 for supplying power to the stator coil 3 wound around the stator 1 by installing the rotor 2 inside the stator 1. The stator mold 5 is configured to be drawn out and then molded with resin.

상기한바와 같이 구성되는 고정자몰드(5)는 제2도에 도시한 바와같이 고정자(1)에 감긴 고정자코일(3)과 연결된 리드선(4)을 금형(6)의 외부로 인출되게 금형(6)내에 고정자(1)를 장착시킨 상태에서 게이트(7)를 통해 수지를 일정온도로 사출하므로서 얻어진다.As shown in FIG. 2, the stator mold 5 is configured such that the lead wire 4 connected to the stator coil 3 wound around the stator 1 is drawn out of the mold 6 to the outside of the mold 6. This is obtained by injecting the resin at a constant temperature through the gate 7 with the stator 1 mounted therein.

이와같은 수지몰드 전동기는 모터의 회전시 구속등의 내. 외부적 운전조건에 따라 고정자코일(3)에 열이 발생되어 모터가 소손되는것을 방지하기위해 전원을 차단시켜주는 온도과승 방지장치의 설치가 요구된다.Such resin-molded electric motors are restricted by the rotation of the motor. In order to prevent the motor from being burned out due to the heat generated in the stator coil 3 according to the external operating conditions, it is required to install a thermal cut-out device that cuts off the power supply.

종래의 온도과승 방지장치는 제3도 및 제4도에 도시한 바와같이 고정자코일(3)에 온도과승 방지구(8)를 묶음실(9)로 묶은다음 이를 금형(6)내에 함께 장착하여 수지몰딩하도록 되어 있다.In the conventional thermal cut-off prevention apparatus, as shown in FIGS. 3 and 4, the thermal cut-out opening 8 is bundled with the bundle chamber 9 in the stator coil 3 and then mounted together in the mold 6. Resin molding is intended.

온도과승 방지구(8)는 내부에 고정접점(9a)과 가동접점(9b)이 고정된 바이메탈 단자(10a) (10b)가 리드선(4)과 연결되어 정상적인 상태에서는 가동접점(9b)이 고정접점(9a)과 접속, 전원을 공급하게 되지만 모터의 운전중에 구속등과 같은 모터내외부적 이상요소에 의해 과전류가 발생되어 고정자코일(3)의 온도가 급격히 상승될 경우에는 바이메탈 단자(10a) (10b)가 변위를 일으켜 고정접점(9a)으로부터 가동접점(9b)이 분리되므로 공급되던 전원을 차단시켜 모터가 소손되는 것을 미연에 방지하게 된다.The thermal protection device 8 has a bimetallic terminal 10a, 10b having a fixed contact 9a and a movable contact 9b fixed therein and connected to the lead wire 4 so that the movable contact 9b is fixed in a normal state. When the current of the stator coil 3 rises rapidly due to an abnormal current inside and outside of the motor such as restraint, etc., while the motor is being connected to the contact 9a and supplying power, the bimetallic terminal 10a ( Since the moving contact 9b is separated from the fixed contact 9a by the displacement 10b), the supplied power is cut off to prevent the motor from being burned out.

그러나 이러한 종래의 장치는 고정자코일(3)에 온도과승 방지구(8)를 묶은상태에서 금형(6)내에 장착하여 수지몰딩하도록되어 있었기 때문에 사출압력에의해 온도과승방지구(8)가 변형되어 바이메탈단자(10a) (10b)를 손상시키게 되므로 온도에 따른 변위가 달라져 정상적인 동작을 하지 못하게 되었음은 물론 리드선(4)과 온도 과숭방지구(8)의 리드선(4) 연결작업이 복잡하여 생산성이 저하되는 문제점이 있었다.However, such a conventional apparatus was mounted in the mold 6 while the stator coil 3 was tied to the temperature rise prevention device 8 so that the resin molding was performed. Since the terminals 10a and 10b are damaged, the displacement according to the temperature is different so that the normal operation is not possible, and the connection work between the lead wire 4 and the lead wire 4 of the temperature overheating prevention device 8 is complicated and the productivity is lowered. There was a problem.

본고안은 종래의 이와같은 문제점을 해결하기위해 안출한 것으로서, 그 구조를 개선하여 온도과승방지구가 사출압력에 의해 변형되어 오동작을하는 것을 미연에 방지함과 동시에 리드선의 연결구조를 간편화 시킬 수 있도록하는데 그 목적이 있다.In order to solve such problems in the related art, the present invention has been designed to improve the structure thereof, and to prevent the malfunction of the temperature rise switch due to the injection pressure, thereby simplifying the connection structure of the lead wire. Its purpose is to.

상기 목적을 달성하기위한 본고안의 형태에 따르면, 다수개의 단자를 가진 컨넥터와, 상기 컨넥터내에 고정자코일에 과전류가 흐르는것을 차단시키는 온도과승 방지구를 내장하여 1차로 몰딩하고, 상기 커넥터 단자와 고정자코일을 연결한후 이를 고정자와 일체로 수지몰딩하여서 된 수지몰드 전동기의 온도과승 방지장치가 제공된다.According to this aspect of the present invention for achieving the above object, the first molded in the connector having a plurality of terminals, and a temperature rise prevention block to block the flow of over-current to the stator coil in the connector, the connector terminal and the stator coil There is provided a device for preventing the temperature rise of the resin-molded electric motor, which is formed by connecting the resin and molding the resin integrally with the stator.

이하, 본고안을 일실시예로 도시한 첨부된 도면 제5도 및 제6도를 참고로하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 5 and 6 of the accompanying drawings.

첨부도면 제5도는 본고안 장치의 요부 분해사시도이고 제6도는 본고안 장치가 수지몰드 전동기에 장착된 상태도로서, 다수개의 단자를 가진 컨넥터(11)내에 고정자코일(3)로 과전류가 흐를때 이를 차단시켜 주는 온도과승방지구(12)가 내장되어 수지(16)로 몰딩되어있어 과전류로인해 고정자코일(3)의 온도가 상승될 경우에는 온도과승방지구(12)에 내장된 바이메탈(공지의 구조이기 때문에 도시는 생략함)이 접점을 끊어주도록 되어 있다.5 is an exploded perspective view of the main part of the present device, and FIG. 6 is a state diagram in which the present device is mounted on a resin-molded motor. When overcurrent flows to the stator coil 3 in the connector 11 having a plurality of terminals, FIG. The built-in thermal cut-off prevention block 12 is molded and molded with the resin 16. When the temperature of the stator coil 3 is increased due to overcurrent, the bimetal (notice structure) (Not shown) is to break the contact.

상기 컨넥터(11)와 온도과승 방지구(12)에는 각각 한쌍의 단자(13a) (14a) (15a) (15b)가 형성되어 있어 이들이 상호 접속하므로서 전원이 고정자코일(3)로 공급되도록 되어 있다.A pair of terminals 13a, 14a, 15a, and 15b are formed at the connector 11 and the thermal protection device 12, respectively, so that power is supplied to the stator coils 3 as they are interconnected. .

또한 단자(13a) (14a)의 일측으로 예비단자(13b) (14b)를 가진 단자(13c) (14c)가 일체로 형성되어 있고 그 사이에는 또다른 단자(17a) (17b)가 고정되어 있어 단자(13c) (17a)사이에 고정자코일(3)을 연결하고 또다른 단자(14c) (17b)에는 전원 공급리드선(4)을 연결하도록 되어 있다.In addition, terminals 13c and 14c having preliminary terminals 13b and 14b are integrally formed on one side of the terminals 13a and 14a, and another terminal 17a and 17b is fixed therebetween. The stator coils 3 are connected between the terminals 13c and 17a, and the power supply lead wires 4 are connected to the other terminals 14c and 17b.

이와같이 구성된 본고안의 작용효과를 설명하면 다음과 같다.The operational effects of the proposed paper thus constructed are as follows.

먼저 컨넥터(11)에 고정된 단자(13a) (14a)에 온도과승방지구(12)의 단자(15a) (15b)가 접속되도록 한다음 이를 수지(16)로 몰딩하여 온도과승방지구(12)를 컨넥터(11)에 고정시킨다.First, the terminals 15a and 15b of the thermal protector 12 are connected to the terminals 13a and 14a fixed to the connector 11, and then molded with resin 16 to form the thermal protector 12. Fix to the connector (11).

그후 컨넥터(11)의 단자(13c) (17a)를 고정자코일(3)과 연결시킨 다음 금형(도시는 생략함)내에 장착시켜 수지몰딩 하므로서 온도과승방지구(12)가 사출압력에 의해 변형되지 않고 제6도와 같은 고정자몰드(17)가 완성된다.Thereafter, the terminals 13c and 17a of the connector 11 are connected to the stator coils 3, and then mounted in a mold (not shown) to resin molding so that the temperature rise prevention tool 12 is not deformed by the injection pressure. The stator mold 17 as shown in FIG. 6 is completed.

이때 전원 공급리드선(4)을 연결시키기위한 단자(14c) (17b)와 예비단자(13b)는 고정자몰드(17)의 외부로 노출되므로 전원공급리드선(4)의 결선작업이 용이해지게 된다.At this time, since the terminals 14c and 17b and the preliminary terminal 13b for connecting the power supply lead wire 4 are exposed to the outside of the stator mold 17, the connection work of the power supply lead wire 4 is facilitated.

이상에서와 같이 본고안 장치는 별도의 컨넥터(11)에 온도과승방지구(12)를 1차수지몰딩한 다음 이를 고정차(1)와 2차 수지몰딩하도록 되어 있으므로 사출시 온도과승방지구(12)가 변형되는 것을 미연에 방지하게됨은 물론 전원공급리드선(4)을 연결하기위한 단자(14c) (17b)가 외부로 노출되므로인해 결선작업이 편리해지게 되는 효과를 가지게 된다.As described above, the present device is configured to mold the first and second resins of the thermal protector 12 on a separate connector 11 and then to mold the vehicle 1 and the secondary resin. Is prevented from being deformed in advance, as well as the terminals 14c and 17b for connecting the power supply lead wire 4 are exposed to the outside, so that the wiring operation becomes convenient.

Claims (3)

다수개의 단자를 가진 컨넥터(11)와, 상기 컨넥터내에 수지(16)로 몰딩되어 고정자코일(3)에 과전류가 흐르는 것을 차단시키는 온도과승방지구(12)로 구성하여, 상기 컨넥터의 단자와 고정자코일(3)을 연결한후 이를 고정자(1)와 일체로 수지몰딩하여서 됨을 특징으로하는 수지몰드 전동기의 온도과승 방지장치.A connector 11 having a plurality of terminals and a temperature rise prevention device 12 molded in resin 16 to block the flow of overcurrent to the stator coil 3, the terminal and the stator coil of the connector (3) After connecting the resin molded in the resin mold motor, characterized in that it is molded integrally with the stator (1). 제1항에 있어서, 컨넥터(11)에 한쌍의 단자(13a) (14a)를 설치하고 온도과승 방지구(12)에도 상기 단자와 접속되는 단자(15a) (15b)를 형성하여 온도과승방지구(12)를 통해 고정자코일(3)로 전원이 공급되도록 함을 특징으로하는 수지몰드 전동기의 온도과승 방지장치.2. The temperature increase prevention device (1) according to claim 1, wherein a pair of terminals (13a) and (14a) are provided on the connector (11), and terminals (15a) and (15b) connected to the terminals are also formed in the thermal protector (12). 12) The temperature rise prevention device of the resin mold motor, characterized in that the power is supplied to the stator coil (3) through. 제2항에 있어서, 단자(13a) (14a)의 일측으로 예비단자(13b) (14b)를 가진 단자(13c) (14c)를 일체로 형성하고 그 사이에는 또다른 단자(17a) (17b)를 고정하여 단자(13c) (17a)에 고정자코일(3)을 연결하고 또다른 단자(14c) (17b)에는 전원공급 리드선(4)을 연결하여서됨을 특징으로하는 수지몰드 전동기의 온도과승 방지장치.3. Terminals (13c) and (14c) having preliminary terminals (13b) and (14b) on one side of the terminals (13a) and (14a) are integrally formed with another terminal (17a) (17b) therebetween. And a stator coil 3 connected to the terminals 13c and 17a and a power supply lead 4 connected to another terminal 14c and 17b. .
KR92013646U 1992-07-23 1992-07-23 Power circuit for electric motor KR950001436Y1 (en)

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KR92013646U KR950001436Y1 (en) 1992-07-23 1992-07-23 Power circuit for electric motor

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Application Number Priority Date Filing Date Title
KR92013646U KR950001436Y1 (en) 1992-07-23 1992-07-23 Power circuit for electric motor

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KR940004439U KR940004439U (en) 1994-02-24
KR950001436Y1 true KR950001436Y1 (en) 1995-03-06

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