KR19980034662A - Non-commutator Motor Overheat Protection Device - Google Patents
Non-commutator Motor Overheat Protection Device Download PDFInfo
- Publication number
- KR19980034662A KR19980034662A KR1019960052796A KR19960052796A KR19980034662A KR 19980034662 A KR19980034662 A KR 19980034662A KR 1019960052796 A KR1019960052796 A KR 1019960052796A KR 19960052796 A KR19960052796 A KR 19960052796A KR 19980034662 A KR19980034662 A KR 19980034662A
- Authority
- KR
- South Korea
- Prior art keywords
- overheat protection
- commutator motor
- protection device
- winding
- motor
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims abstract description 18
- 238000013021 overheating Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
본 발명은 무정류자 전동기 과열보호장치는, 고정자의 티스에 삼상(u,v.w)으로 순차적으로 권선이 감겨져 있으며, 회전자가 바깥에 위치하는 무정류자 전동기의 과열을 방지하기 위한 무정류자 전동기 과열보호장치에 있어서, 이웃하는 상기 두 권선 사이에 평상시에는 두선이 단상전원라인의 한선에 직렬로 연결되어 있다가 권선온도의 과다 상승시 끊어져 두상의 전원을 차단하는 한 개의 과열보호부를 포함하여 구성되며, 상기와 같이 하나의 과열보호부만으로 2상의 전원을 차단함으로써 종래의 두개의 과열보호부를 사용하는 것에 비해 제조가를 감소시킬 수 있으며, 결선수가 줄어들어 제조가 용이한 효과가 있다.In the present invention, the non-commutator motor overheat protection device, the winding of the stator winding in three phase (u, vw) sequentially, the non-commutator motor overheat protection device for preventing overheating of the non-commutator motor in which the rotor is located In one embodiment, between the two adjacent windings in general, the two wires are connected in series to one line of the single-phase power supply line, and is configured to include one over-temperature protection to cut off the power of the two phases when the winding temperature is excessively increased. By cutting off the power supply of two phases with only one overheat protection unit as described above, the manufacturing cost can be reduced compared to using two conventional overheat protection units, and the reduction of defects can be easily produced.
Description
본 발명은 전동기에 관한 것으로, 특히 무정류자 전동기의 고정자(stator) 권선이 과부하시 또는 과전류에 의하여 과열되어 소손되는 것을 방지하기 위한 무정류자 전동기 과열보호장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor, and more particularly, to a non-commutator motor overheat protection device for preventing the stator winding of a non-commutator motor from being overheated or burned out by overload or overcurrent.
도 1은 종래의 기술에 의한 무정류자 전동기 과열보호장치의 결선상태를 도시한 것으로, 단상전원전압이 입력되며 이를 이용하여 주파수 변경에 의해 전압크기를 변화시켜 삼상 무정류자 전동기에 소요전압과 주파수를 인가하기 위한 전동기 제어부(100)와, 권선의 외측에 접착제를 이용하여 고정되어 있는 리드와이어(200)와, 과열시 전동기를 보호하기 위한 과열보호부(300)로 구성되어 있다.1 is a view illustrating a connection state of a non-commutator motor overheating protection device according to the related art, wherein a single-phase power supply voltage is input, and the voltage and frequency are changed to a three-phase non-commutator motor by changing the voltage magnitude by using the same. The motor control unit 100 for applying, the lead wire 200 is fixed to the outside of the winding by using an adhesive, and the overheat protection unit 300 for protecting the motor during overheating.
그리고 상기 무정류자 전동기는, 도 2에 도시한 바와 같이 회전자(3)가 바깥에 있으며, 상기 회전자와 어떤 제품의 고정부에 고정될 고정자(5)로 구성되어 있고, 상기 회전자(2)의 경우 영구자석(1)과 프레임(4), 축(2)으로 구성되어 있으며, 상기 고정자(5)는 티스(6)에 삼상(u,v.w)으로 순차적으로 권선이 감겨져 있다.As shown in FIG. 2, the non-commutator electric motor includes a rotor 3 outside and a stator 5 to be fixed to a fixed part of the rotor and a certain product. ) Is composed of a permanent magnet (1), the frame (4), the shaft (2), the stator (5) is wound around the tooth (6) in three phases (u, vw) in turn.
상기 무정류자 전동기 과열보호장치의 동작방법을 설명하면, 전류의 크기와 부하는 비례하기 때문에 부하가 많이 걸리면 상기 권선에 전류가 많이 흐르게 되고, 이 전류는 제곱에 비례하여 손실이 발생하므로 열이 발생하게 되어 전동기의 수명을 저하시키되는데 무정류 전동기 과열보호장치는 이러한 열발생으로 인한 전동기의 수명저하를 방지하기 위한 것으로, 정상온도에서는 상기 과열보호부(300)를 상기 권선에 붙혀 두고 접촉된 위치에서의 온도를 검출하도록 하며, 상기한 바와 같이 부하가 많이 걸려 권선에 과다한 열이 발생하게 되면 상기 권선의 외측에 접착제를 이용하여 고정된 두 가닥의 리드 와이어가 상기 전동기에 인가되는 두 상을 끊어주어 전동기의 구동을 정지시킴으로써 더 이상의 온도 상승을 방지한다.Referring to the operation method of the non-rectifier motor overheat protection device, since the current is proportional to the magnitude of the load, if the load is large, the current flows a lot in the winding, and the current is generated in proportion to the square, so heat is generated. The non-rectified motor overheat protection device is to prevent the deterioration of the life of the motor due to such heat generation, and at the normal temperature, the overheat protection part 300 is attached to the winding and is in contact with each other. When the load is too high and excessive heat is generated in the winding as described above, two strands of the lead wire fixed by using an adhesive on the outside of the winding are cut off from the two phases applied to the electric motor. A further temperature rise is prevented by stopping the drive of the motor.
그러나 상기와 같은 종래의 무정류자 전동기 과열보호장치는, 반드시 상기 전동기에 인가되는 두상의 전원을 끊어야 하기 때문에 두개의 과열보호부(300)가 있어야 하며, 전동기의 리드와이어에 두번의 결선을 해야 하므로 제조가가 상승하며, 결선이 복합한 문제점이 있다.However, in the conventional non-commutator motor overheating protection device as described above, two overheat protection parts 300 must be provided because the two phases of power applied to the motor must be cut off, and two wires must be connected to the lead wire of the motor. There is a problem that the manufacturing price rises, the connection is complex.
따라서 본 발명의 목적은 상기와 같은 문제점을 해결하기 위하여 한개의 과열보호부만으로 종래와 동일한 과열 보호효과를 나타냄으로써 제조가를 감소시키고 결선수를 줄일 수 있는 무정류자 전동기 과열보호장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide a non-commutator motor overheat protection device that can reduce the manufacturing cost and reduce defects by exhibiting the same overheat protection effect with only one overheat protection unit to solve the above problems. .
도 1은 종래의 기술에 의한 무정류자 전동기의 결선도.1 is a connection diagram of a non-commutator motor according to the prior art.
도 2은 종래의 기술에 의한 무정류자 전동기의 구조도.2 is a structural diagram of a non-commutator motor according to the prior art.
도 3은 본 발명에 의한 무정류자 전동기 과열보호장치의 결선도.3 is a connection diagram of a non-commutator motor overheating protection device according to the present invention.
도 4은 본 발명에 의한 무정류자 전동기의 구조도.4 is a structural diagram of a non-commutator motor according to the present invention.
도 5는 본 발명에 의한 무정류자 전동기 과열보호장치의 구조도.5 is a structural diagram of a non-commutator motor overheat protection device according to the present invention.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
100:전동기 제어부 200:리드와이어100: motor control unit 200: lead wire
300:과열보호부300: overheat protection unit
이하 첨부도면을 참조하여 본 발명을 좀 더 상세하게 설명하고자 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
본 발명의 무정류자 전동기 과열보호장치는, 도 3 및 도 4에 도시한 바와 같이 한개의 과열보호부(300)만을 이용한 것으로, 이웃하는 두 권선 사이에 삽입, 부착된다.As shown in FIGS. 3 and 4, the non-commutator motor overheat protection device of the present invention uses only one overheat protection part 300, and is inserted and attached between two adjacent windings.
상기 과열보호부(300)는, 도 5에 도시한 바와 같이 접촉하는 권선의 온도를 검출하기 위한 온도검출부(300a)와, 단상전원의 한쪽라인에 직렬로 연결된 리드와이어(300b)로 구성되며, 동작은 다음과 같다.The overheat protection unit 300 is composed of a temperature detector 300a for detecting the temperature of the windings in contact as shown in FIG. 5 and a lead wire 300b connected in series to one line of the single-phase power source. The operation is as follows.
상기한 바와 같이 두 권선사이에 삽입, 부착되어 있는 상기 온도검출부(300a)는, 온도를 검출시에도 두 권선 중 온도가 높은 쪽을 검출하며, 상기 온도가 높은 쪽의 권선 온도가 설정온도 이상으로 올라가면 상기 리드와이어(300b)를 끊어준다.As described above, the temperature detecting unit 300a inserted and attached between the two windings detects the higher temperature of the two windings even when the temperature is detected, and the winding temperature of the higher temperature is higher than the set temperature. When the lead wire 300b is cut off.
이때 상기 리드와이어(300b)는, 두선이 단상전원선의 한선에 직렬로 연결되어 있으므로 단성전원을 끊으면 상기 전동기에 인가되는 두상을 끊어주는 것과 동일한 효과를 볼 수 있다.In this case, since the lead wire 300b is connected in series with one line of the single-phase power line, the lead wire 300b may have the same effect as breaking the two phase applied to the electric motor when the single-phase power is cut off.
이상에서와 같이 본 발명에 의하면, 하나의 과열보호부만으로 2상의 전원을 차단함으로써 종래의 두개의 과열보호부를 사용하는 것에 비해 제조가를 감소시킬 수 있으며, 결선수가 줄어들어 제조가 용이한 효과가 있다.As described above, according to the present invention, by cutting off the power supply of two phases with only one overheat protection unit, compared to using two conventional overheat protection units, the manufacturing cost can be reduced, and the defects can be reduced, thereby making it easy to manufacture. .
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960052796A KR100202598B1 (en) | 1996-11-08 | 1996-11-08 | Superheat protection apparatus for brushless motor |
| TW086116015A TW355862B (en) | 1996-11-08 | 1997-10-29 | Apparatus for preventing overheat of brushless DC motor |
| AU44369/97A AU741189B2 (en) | 1996-11-08 | 1997-11-06 | Apparatus for preventing overheat of brushless DC (BLDC) motor |
| JP9307499A JPH10145961A (en) | 1996-11-08 | 1997-11-10 | Overheat preventive device for commutatorless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960052796A KR100202598B1 (en) | 1996-11-08 | 1996-11-08 | Superheat protection apparatus for brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980034662A true KR19980034662A (en) | 1998-08-05 |
| KR100202598B1 KR100202598B1 (en) | 1999-06-15 |
Family
ID=19481163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960052796A KR100202598B1 (en) | 1996-11-08 | 1996-11-08 | Superheat protection apparatus for brushless motor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH10145961A (en) |
| KR (1) | KR100202598B1 (en) |
| AU (1) | AU741189B2 (en) |
| TW (1) | TW355862B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009050096A (en) * | 2007-08-21 | 2009-03-05 | Nidec Shibaura Corp | Brushless mold motor |
| EP3285374A1 (en) * | 2014-12-05 | 2018-02-21 | Nidec Motor Corporation | Electric motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA747514A (en) * | 1962-04-06 | 1966-11-29 | Westinghouse Electric Corporation | Overtemperature protected apparatus |
| US3569781A (en) * | 1968-12-30 | 1971-03-09 | Texas Instruments Inc | Motor protection circuit |
| US3646396A (en) * | 1970-07-22 | 1972-02-29 | Bodine Electric Co | Overload protection system for dc motors |
-
1996
- 1996-11-08 KR KR1019960052796A patent/KR100202598B1/en not_active IP Right Cessation
-
1997
- 1997-10-29 TW TW086116015A patent/TW355862B/en active
- 1997-11-06 AU AU44369/97A patent/AU741189B2/en not_active Ceased
- 1997-11-10 JP JP9307499A patent/JPH10145961A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10145961A (en) | 1998-05-29 |
| AU741189B2 (en) | 2001-11-22 |
| KR100202598B1 (en) | 1999-06-15 |
| AU4436997A (en) | 1998-05-14 |
| TW355862B (en) | 1999-04-11 |
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