KR200482980Y1 - Brushless Motor Providing Power Connection Preservation Function of Busbar and Power Connector - Google Patents

Brushless Motor Providing Power Connection Preservation Function of Busbar and Power Connector Download PDF

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Publication number
KR200482980Y1
KR200482980Y1 KR2020150002448U KR20150002448U KR200482980Y1 KR 200482980 Y1 KR200482980 Y1 KR 200482980Y1 KR 2020150002448 U KR2020150002448 U KR 2020150002448U KR 20150002448 U KR20150002448 U KR 20150002448U KR 200482980 Y1 KR200482980 Y1 KR 200482980Y1
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KR
South Korea
Prior art keywords
power
motor
power connector
contact
bus bar
Prior art date
Application number
KR2020150002448U
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Korean (ko)
Other versions
KR20160003717U (en
Inventor
김동현
이광호
Original Assignee
계양전기 주식회사
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Priority to KR2020150002448U priority Critical patent/KR200482980Y1/en
Publication of KR20160003717U publication Critical patent/KR20160003717U/en
Application granted granted Critical
Publication of KR200482980Y1 publication Critical patent/KR200482980Y1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

This design forcibly protects the portion of the power connector that is connected to the power connector of the power connector that applies the power to the motor and the connection terminal of the bus bar that is located on the motor side so that it can be connected to the power terminal A brushless motor for protecting a power connection between a power connector disposed on a power side of a motor housing and a bus bar disposed on a motor side of a motor housing so as to prevent a contact failure and a short circuit between terminals, Phase connection terminal is connected to the bus bar via the solder in a state of being arranged side by side with the contact part, and the contact part and the three-phase connection terminal are connected to each other by solder The contact part of the contact is covered with protective means so that the contact part is not exposed. And the protective means is composed of a protective cover and a fixing structure which is inserted and fixed in a manner to be inserted into the protective cover and which has a power connector and a bus A brushless motor with a power connection protection of the bar is provided.

Description

[0001] The present invention relates to a brushless motor, and more particularly,

The present invention relates to a brushless motor having a power connector and a power supply connection function of a bus bar, and more particularly, to a brushless motor having a power connector connected between a power terminal of a power connector for applying power to the motor and a connection terminal of a bus bar The parts electrically connected to the solder are forcibly protected so that faulty contact and short circuit between the power terminal and the connection terminal can be prevented in the event of shock transmission from the outside or severe environmental conditions.

Background Art [0002] A brushless motor widely used in general has a configuration in which a power side power connector for applying external power to a motor side stator and a stator made up of an assembly of divided cores are arranged on the motor side. And is connected in parallel with a lead wire between the power terminal of the power connector and the connection terminal of the stator.

FIG. 1 shows a power connector of a brushless motor and a power connection structure of a bus bar. For convenience of explanation, the brushless motor 10 will be described as being divided into the power side P and the motor side M as follows.

As shown in the drawing, the power side (P) motor housing 12a constituting the brushless motor 10 has a receiving structure in which a power connector 14 for applying an external power source to the motor side M is disposed .

In addition, the motor-side (M) motor housing 12b has a receiving structure in which a stator (not shown) is disposed. On the upper surface of the stator, a bus bar 18 is electrically connected to a power terminal of the stator, Lt; / RTI >

Each of the power terminals 20 extending from the upper surface of the power connector 14 is disposed toward the bus bar 18 in parallel with the upper surface of the power connector 14. The contact portion 22, which is an end of the power terminal 20, has a bending structure that is vertically erected.

A guide mold part 24 is provided on one end of the bus bar 18 so as to be arranged so as to be parallel to the contact part 22 of the power terminal 20. From the guide mold part 24 Phase connection terminal 26 is disposed so as to be in contact with one side surface of the contact portion 22 of the power supply terminal 20. The three-

As described above, the three-phase connection terminals 26 of the bus bar 18 are brought into contact with one side of the contact portion 22 of the power terminal 20 of the power connector 14 in a state of being aligned in parallel, do. Welding or brazing methods are applied to these butt joints.

In the power connection structure of the power connector and the bus bar of the brushless motor configured as described above, welding or soldering between the contact portion 22 of the power terminal 20 and the three-phase connection terminal 26 of the bus bar 18 The contact portion 22 of the power supply terminal 20 and the connection terminal 26 of the power supply terminal 20 are electrically connected to each other at the time of external shock transmission and harsh environmental conditions when the soldering portion W is poorly connected, The soldering portion W is destroyed and electrical connection failure or short circuit occurs.

If a connection failure or a short circuit occurs as described above, the operation may not be performed or the operation may suddenly stop during operation. In the case of the automobile, if the associated device does not operate or suddenly stops while driving, Which can lead to dangerous situations.

The present invention has been developed in order to solve the above problems, and by forcibly protecting a portion electrically connected to a solder between a power terminal of a power connector for applying power to the motor and a connection terminal of a stator disposed on the motor side, And it is an object of the present invention to provide a brushless motor having a power connector and a protection function for power supply connection of a bus bar to prevent a contact failure and a short circuit between a power terminal and a connection terminal under impact transmission or harsh environmental conditions.

In order to achieve the above-mentioned object, the present invention provides a power connector in which a contact portion of a power terminal drawn out from an upper surface of a power connector is bent in a raised state, and a three- And a protective cover is attached to the contact connecting portion where the contact portion and the three-phase connecting terminal are connected by solder so that the contact connecting portion is not exposed. The protecting means includes a protective cover, There is provided a brushless motor provided with a power connector and a power connection protection function of a bus bar, which is composed of a fixed structure to be inserted and fixed in a manner to be inserted into the fixed structure, .
The fixing structure is formed of a hollow structure that forms a through hole. The fixed structure includes a power connector, which is coupled in an insertion manner in which a contact connecting portion is inserted into the through hole, and a brushless A motor is provided.

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As described above, when the brushless motor having the function of protecting the power connection between the power connector and the bus bar according to the present invention is used, the power terminal of the power connector for applying the power to the motor side and the bus terminal It is possible to prevent the occurrence of contact failure and short-circuit between the power supply terminal and the connection terminal under severe environmental conditions such as impact transmission from the outside.

In addition, if the brushless motor having the function of protecting the power connection between the power connector and the bus bar according to the present invention is used, the problem that the operation is not performed or the sudden stoppage of the operation is completely solved to prevent a fatal accident An effect that can be expected can be expected.

1 is a perspective view showing a power connection structure of a power connector and a bus bar of a general brushless motor.
FIG. 2 is a perspective view showing a brushless motor having a power connector and a power supply connection protection function of a bus bar according to the present invention. FIG.
3 is an exploded perspective view showing the protection means of FIG.
4 is a cross-sectional view showing the main part of FIG.
FIG. 5 is an exploded perspective view showing a protection means according to another embodiment corresponding to FIG. 2. FIG.
FIG. 6 is a cross-sectional view of the principal part of FIG.

Hereinafter, a preferred embodiment of a brushless motor provided with a function of protecting power connection between a power connector and a bus bar according to the present invention will be described with reference to the accompanying drawings. For reference, the same constituent elements as those of FIG. 1 are denoted by the same reference numerals.

2 to 4, the power side (P) motor housing 12a constituting the brushless motor 10 is drawn out from the power connector 14 for applying an external power source to the motor side M Each of the power terminals 20 is disposed toward the bus bar 18. The contact portion 22 of the power terminal 20 has a bent structure that is vertically erected.

The three-phase connection terminal 26 of the bus bar 18 is disposed in contact with one side surface of the contact portion 22 of the power terminal 20 and contacts the contact portion 22 of the power terminal 20, Phase connection terminals 26 of the bar 18 by welding or soldering.

In this case, the contact portion S of the contact portion 22 of the power terminal 20 and the three-phase connection terminal 26 of the bus bar 18 are in contact with each other, that is, ).

Specifically, the protection means 30 includes a protection cover 32 and a fixing structure 34. [

The protective cover 30 is formed with a receiving groove 36 having a depth therein and opened in a downward direction and a fixing structure 34 is accommodated in the receiving groove 36 thus formed, do. An engaging groove 38 is formed in the fixing structure 34 to open in the same direction as the opening direction of the receiving groove 36 of the protective cover 30.

The connection groove 38 of the fixing structure 34 is provided with a contact connecting portion (contact portion) 22 in which the contact portion 22 of the power supply terminal 20 and the three-phase connecting terminal 26 of the bus bar 18 are in contact S are inserted into the receiving structure, in which case they are coupled as a forced fit type.

When the contact connecting portion S is fitted into the defect groove 38 of the fixing structure 34, the contact portion 22 of the power terminal 20, which is the contact connecting portion S, Since the three-phase connecting terminal 26 of the bus bar 18 is forcibly restrained inside the coupling groove 38 of the fixed structure 34, even if the external vibration is strongly transmitted to the contact connecting portion S, The contact and fixing between the connection terminal 22 and the connection terminal 26 can be maintained as it is, and cracking of the solder portion W can be prevented.

Even if a fine crack which is difficult to be found in the oil pipe is formed in the solder portion W due to the failure of welding or soldering, the contact portion 22 and the connection terminal 26 are fixed by the fixing structure 34, Is fixed to the inside of the coupling groove 38 of the fixed structure 34, the close fit can be maintained as it is, and the electrical short circuit is not generated. Particularly, it is possible to prevent cracks of the solder portion W connected between the contact portion 22 and the connection terminal 26 from being further expanded due to vibration due to vibration, and even if the crack of the solder portion W is enlarged, 22 and the connection terminal 26 can be prevented from being short-circuited.

Although the fixed structure 34 described above is formed in a groove structure that is opened only in a direction in which the contact connection portion s is inserted, the fixed structure 40 shown in FIGS. And a forced coupling structure in which a contact connecting portion is inserted into the through hole 42 is also included in the present invention.

The material of the fixing structures 34 and 40 described above is determined by the material of the protective cover 32. Specifically, when the material of the protective cover 32 is made of a metal material, Elastic material such as rubber, synthetic resin and plastic which can provide a pressing force while absorbing impact is preferable. In addition, a conductive material such as conductive Or a non-conductive metal material.

In addition, when the protective cover 32 is made of a plastic injection molding or a synthetic resin injection molding, the fixing structures 34 and 40 are made of a metal material so that the fixing function can be enhanced. In addition, when the protective cover 32 is made of a plastic injection molding or a synthetic resin injection molding, the injection molding is performed by insert injection molding in which the fixing structures 34 and 40 are contained in the receiving groove 36 of the protective cover 32 It is possible to eliminate the process of assembling and connecting the fixing structures 34 and 40 to the receiving grooves 36.

While the preferred embodiments of the present invention have been described above, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Accordingly, variations and modifications of the embodiments of the present invention will not depart from the technical scope of the present invention.

10: Brushless motor 12a, 12b: Motor housing
14: Power connector 18: Bus bar
20: power supply terminal 22:
24: Guide mold part 26: Three-phase connection terminal
30: Protective means 32: Protective cover
34, 40: fixed structure 36: receiving groove
38: engaging groove 42: through hole

Claims (3)

A brushless motor for protecting a power connection between a power connector disposed on a power side of a motor housing and a bus bar disposed on a motor side of the motor housing,
The contact portion of the power source terminal drawn out from the upper surface of the power connector is bent in a state of being raised,
The three-phase connection terminal is connected to the bus bar via the solder in a state of being arranged side by side with the contact point,
The contact portion and the three-phase connection terminal are connected to each other by a solder, and a protection means is attached to the contact portion so that the contact portion is not exposed.
Characterized in that the protection means comprises a protective cover and a fixing structure which is inserted and fixed in a manner to be fitted in the inside of the protective cover and is coupled in an insertion manner in which the contact connecting portion is inserted into the fixing structure. Brushless motor with bar power protection.
delete The method according to claim 1,
Wherein the fixed structure is formed in a hollow structure that forms a through hole and is coupled in an insertion manner in which a contact connecting portion is inserted into the through hole. Lease motor.
KR2020150002448U 2015-04-16 2015-04-16 Brushless Motor Providing Power Connection Preservation Function of Busbar and Power Connector KR200482980Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150002448U KR200482980Y1 (en) 2015-04-16 2015-04-16 Brushless Motor Providing Power Connection Preservation Function of Busbar and Power Connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150002448U KR200482980Y1 (en) 2015-04-16 2015-04-16 Brushless Motor Providing Power Connection Preservation Function of Busbar and Power Connector

Publications (2)

Publication Number Publication Date
KR20160003717U KR20160003717U (en) 2016-10-27
KR200482980Y1 true KR200482980Y1 (en) 2017-03-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109713850A (en) * 2017-10-25 2019-05-03 德昌电机(深圳)有限公司 Electric machine assembly
KR20210044571A (en) * 2019-10-15 2021-04-23 엘지이노텍 주식회사 Motor
KR102379080B1 (en) * 2020-03-05 2022-03-28 두원중공업(주) Bus bar assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001238397A (en) * 2000-02-23 2001-08-31 Mitsubishi Electric Corp Inserted molded lead wire, and actuator
KR200455469Y1 (en) * 2010-03-02 2011-09-06 계양전기 주식회사 Power connector and busbar power connection structure of brushless motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001238397A (en) * 2000-02-23 2001-08-31 Mitsubishi Electric Corp Inserted molded lead wire, and actuator
KR200455469Y1 (en) * 2010-03-02 2011-09-06 계양전기 주식회사 Power connector and busbar power connection structure of brushless motor

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