KR101082501B1 - Controller for motor and making method thereof - Google Patents

Controller for motor and making method thereof Download PDF

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Publication number
KR101082501B1
KR101082501B1 KR1020100056174A KR20100056174A KR101082501B1 KR 101082501 B1 KR101082501 B1 KR 101082501B1 KR 1020100056174 A KR1020100056174 A KR 1020100056174A KR 20100056174 A KR20100056174 A KR 20100056174A KR 101082501 B1 KR101082501 B1 KR 101082501B1
Authority
KR
South Korea
Prior art keywords
printed circuit
circuit board
conductive member
heat dissipation
controller
Prior art date
Application number
KR1020100056174A
Other languages
Korean (ko)
Inventor
홍태표
Original Assignee
동아전장주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동아전장주식회사 filed Critical 동아전장주식회사
Priority to KR1020100056174A priority Critical patent/KR101082501B1/en
Application granted granted Critical
Publication of KR101082501B1 publication Critical patent/KR101082501B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller for a motor and a method for manufacturing the same, and more particularly, to a controller for a motor and a method for manufacturing the same, which can achieve miniaturization and prevent malfunction and damage of a heat radiation target by improving heat radiation efficiency.
The present invention provides a controller for a motor including a printed circuit board, an element installed on the printed circuit board, a heat dissipation unit provided on the printed circuit board, and a conductive member provided between the element and the heat dissipation unit.
The present invention includes the steps of (a) processing the through-hole portion on the printed circuit board, (b) installing the element on the printed circuit board facing the through-hole portion, and (c) inserting the conductive member into the through-hole portion And, (d) provides a method for manufacturing a controller for a motor comprising the step of coupling the printed circuit board and the radiator.

Description

Motor Controller and Manufacturing Method {CONTROLLER FOR MOTOR AND MAKING METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller for a motor and a method for manufacturing the same, and more particularly, to a controller for a motor and a method for manufacturing the same, which can achieve miniaturization and prevent malfunction and damage of a heat radiation target by improving heat radiation efficiency.

A cooling device is installed to cool a heat exchange medium circulating inside a heat exchanger such as a radiator or a condenser of an automobile, and the cooling device includes a shroud, a motor, and an axial fan.

As the axial fan rotates by driving the motor, air is blown in the axial direction by the blades of the axial fan, and the heat exchanger is cooled by the air thus blown.

In the motor, high speed and low speed two-stage or more multi-stage driving modes are selectively performed. A PWM (Pulse Width Modulation) controller is installed between the motor power supply side and the motor to adjust the speed of the motor.

The PWM controller includes a first connector connected to a motor and a second connector connected to a power source of the vehicle.

By connecting the PWM controller and the motor to each other, a low speed operation circuit is formed, and by the low speed operation circuit by the PWM controller, the voltage supplied to the motor is selectively adjusted to be low.

By this voltage control, the motor can be selectively driven from high speed to low speed.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

In general, the motor controller has a problem that it is difficult to reduce the size of the product because the heat dissipation device is installed due to malfunction or damage by heat generated during driving.

In addition, ceramic printed circuit boards installed to prevent overheating use expensive materials, which makes it difficult to reduce the unit cost of products.

Therefore, there is a need for improvement.

An object of the present invention is to provide a motor controller and a method of manufacturing the same that can improve the heat dissipation efficiency to prevent malfunction and damage of the heat dissipation object, achieve miniaturization, and reduce the cost required for manufacturing the controller.

In order to achieve the above object, the present invention includes a printed circuit board, a device installed on the printed circuit board, a heat dissipation unit provided on the printed circuit board, and a conductive member provided between the element and the heat dissipation unit. A controller for a motor is provided.

In addition, the printed circuit board is characterized in that the through-hole portion is formed is inserted into the conductive member.

In addition, the element is inserted into the through-hole portion is characterized in that it is in close contact with the conductive member.

In addition, the conductive member is formed thicker than the printed circuit board so that a gap is formed between the heat dissipation unit and the printed circuit board.

In addition, an adhesive member is coated between the conductive member and the heat dissipation unit.

In addition, the conductive member and the heat dissipating portion is characterized in that the fixing portion for fitting.

In addition, the conductive member is characterized in that it comprises an aluminum oxide material.

In addition, the present invention (a) processing the through-hole portion in the printed circuit board, (b) installing the element on the printed circuit board facing the through-hole portion, (c) inserting the conductive member into the through-hole portion And (d) combining the printed circuit board with the heat dissipation unit.

In addition, the step (d) is characterized in that a gap is formed between the heat dissipation unit and the printed circuit board to install a heat dissipation unit to press the conductive member toward the element side.

The present invention has the advantage that can prevent the malfunction and damage due to overheating of the device during driving because the device and the heat radiating portion is directly connected by the conductive member can effectively dissipate heat generated from the device.

In addition, the present invention has the advantage that the size of the product is reduced because the heat radiation efficiency is improved by the conductive member can be used a small heat radiation unit.

In addition, the present invention has the advantage that the element and the conductive member is inserted into close contact with the through-hole formed in the printed circuit board, it is possible to improve the heat radiation efficiency and reduce the size of the product.

In addition, the present invention has the advantage of reducing the cost of manufacturing the controller because the expensive heat radiation member for heat radiation is omitted because the heat radiation efficiency is improved as described above.

1 is an exploded perspective view showing a controller for a motor according to a first embodiment of the present invention.
2 is an exploded cross-sectional view showing a controller for a motor according to a first embodiment of the present invention.
3 is an exploded perspective view showing a rear surface of the controller for a motor according to the first embodiment of the present invention.
4 is a cross-sectional view showing a conductive member mounting structure of a controller for a motor according to a first embodiment of the present invention.
5 is a flowchart illustrating a method for manufacturing a controller for a motor according to a first embodiment of the present invention.
6 is a cross-sectional view showing a heat dissipation unit mounting structure of a controller for a motor according to a second embodiment of the present invention.
7 is a cross-sectional view showing a heat dissipation unit mounting structure of a controller for a motor according to a third embodiment of the present invention.

Hereinafter, an embodiment of a controller for a motor and a method of manufacturing the same according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is an exploded perspective view showing a controller for a motor according to a first embodiment of the present invention, Figure 2 is an exploded cross-sectional view showing a controller for a motor according to a first embodiment of the present invention, Figure 3 is 4 is an exploded perspective view illustrating a rear surface of the controller for a motor according to the first embodiment, and FIG. 4 is a cross-sectional view illustrating a conductive member mounting structure of the controller for the motor according to the first embodiment of the present invention.

1 to 4, a controller for a motor according to a first embodiment of the present invention includes a printed circuit board 30, an element 80 installed on the printed circuit board 30, and a printed circuit board 30. Heat dissipation unit 50 is installed in the), and the conductive member 70 is installed between the element 80 and the heat dissipation unit 50.

Through the first connector 19a and the second connector 19b formed in the case 10, electricity flows through the printed circuit board 30 and the voltage is changed while passing through the device 80, thereby varying the driving speed of the motor. The heat generated from the device 80 is released through the heat dissipation unit 50, thereby preventing overheating of the device 80.

At this time, since the heat generated from the device 80 is effectively transmitted to the heat dissipation unit 50 along the conductive member 70, it is possible to suppress the overheating of the device 80 by the heat generated during driving.

A support part 14 in which a plurality of parts are mounted is formed in the case 10, and the parts seated on the support part 14 are connected to the printed circuit board 30 positioned on the back of the support part 14.

The support 14 is provided with a plurality of fixing parts 16 on which the printed circuit board 30 is supported, and a fastening member inserted into the fixing part 16 is coupled to the printed circuit board 30.

The printed circuit board 30 is formed with a through-hole 32 into which the conductive member 70 is inserted, and thus is provided on the other side of the element 80 and the printed circuit board 30 installed on one side of the printed circuit board 30. The heat dissipation unit 50 is connected by the conductive member 70.

Therefore, the heat generated in the device 80 is transmitted to the heat dissipation unit 50 along the conductive member 70 and then released to the outside by the external air contacting the heat dissipation unit 50.

Since the device 80 is inserted into the through hole part 32 and is in close contact with the conductive member 70, the device 80 and the conductive member 70 are in close contact with each other in the through hole part 32. When the device 80 and the conductive member 70 are press-fitted into (), it is possible to suppress the separation of the device 80 and the conductive member 70.

Since the conductive member 70 is formed thicker than the printed circuit board 30, the heat dissipation unit 50 closely contacting the conductive member 70 does not come into contact with the printed circuit board 50. Is prevented from contacting the circuit pattern of the printed circuit board 30.

Since the heat dissipation part 50 is made of a metal material having high thermal conductivity, when the heat dissipation part is in contact with the circuit pattern of the printed circuit board 30 through which current flows, malfunction and breakage may occur due to a short circuit, and thus heat dissipation with the printed circuit board 30 may occur. It is preferable that a gap is formed between the portions 50.

The heat dissipation part 50 is installed to maintain a predetermined distance from the printed circuit board 30 because the fastening member installed in the fixing part 16 is coupled to the heat dissipation part 50 through the printed circuit board 30.

In addition, the heat dissipation unit 50 is a gap between the heat dissipation unit 50 and the conducting member 70 because the fastening member coupled to the portion of the printed circuit board 30 where the circuit pattern is not printed is fastened to the heat dissipation unit 50. Do not form this.

Since the conductive member 70 is made of a conductive aluminum oxide material, the heat generated from the device 80 is easily conducted to the heat radiating portion 50 along the conductive member 70 and contacts the heat radiating portion 50. Being radiated with outside air.

As described above, the device 80 and the conductive member 70 are formed to be in close contact with each other through the through hole 32, and the conductive member 80 drives a controller for a motor made of aluminum oxide and measures the temperature. As follows.

The temperature of the heat dissipation unit 50 of the controller for the motor of the present embodiment is measured about 141.6 degrees, the temperature of the element 80 is about 77.9 degrees, the temperature of the heat dissipation unit of the general motor controller without the through hole 32 is about 141.6 degrees. The temperature of the device was measured at about 168.6 degrees.

It can be seen that the overheating of the controller for the motor according to the present embodiment is prevented by the experimental data as described above.

Reference numeral 12 which is not described is a coupling part 12 which is integrally formed in the case 10 and coupled to the cooling fan to fix the controller.

Looking at the manufacturing method of the motor controller according to the first embodiment of the present invention configured as described above are as follows.

5 is a flowchart illustrating a method for manufacturing a controller for a motor according to a first embodiment of the present invention.

1 to 5, a method for manufacturing a controller for a motor according to a first embodiment of the present invention includes processing a through hole part 32 in a printed circuit board 30 (S10), and a through hole part 32. Installing the device 80 on the printed circuit board 30 so as to face (S20), inserting the conductive member 70 into the through hole 32 (S30), and the printed circuit board 30 and The step (S40) of coupling the heat dissipation unit 50.

When the heat dissipation part 50 is installed in the controller for the motor, the through hole part 32 is formed in the printed circuit board 30 and the element 80 is disposed on one side of the printed circuit board 30 so as to face the through hole part 32. Install.

Thereafter, the conductive member 70 is inserted into the through hole 32 from the other side of the printed circuit board 30 so that the conductive member 70 and the device 80 are in close contact with each other, and the heat dissipating portion 50 is connected to the printed circuit board. Coupling to the substrate (30).

At this time, the heat dissipation unit 50 is fastened to the printed circuit board 30 by fastening the fastening member inserted into the heat dissipation unit 50 so as to be in close contact with the conductive member 70, the conductive member 70 is the heat dissipation unit 50 and the element ( 80).

In addition, the coupling member inserted into the fixing part 16 of the case 10 is coupled to the heat dissipation part 50 so that a gap does not occur between the heat dissipation part 80 and the conductive member 70.

Since the conductive member 70 is formed thicker than the printed circuit board 30, when the heat dissipation unit 50 is installed to closely contact the plurality of conductive members 70, the conductive member 70 is disposed between the printed circuit board 30 and the heat dissipation unit 50. A predetermined interval is formed in the.

Since a gap is maintained between the heat dissipation part 50 of the metal material and the printed circuit board 30 on which the circuit pattern is printed, the short phenomenon caused by the contact between the heat dissipation part 50 and the printed circuit board 30 can be prevented. It is possible to suppress malfunctions and breakages.

Since the coupling of the heat dissipation unit 50 is made by the fastening member coupled between the printed circuit board 30 and the heat dissipation unit 50, and the fastening member coupled between the fixing unit 16 and the heat dissipation unit 50, The part 50 presses the conductive member 70 toward the element 80.

Therefore, the conductive member 70 is in close contact with the device 80 and the heat dissipation unit 50, so that the heat generated from the device 80 during operation of the controller along the conductive member 70, the heat dissipation unit 50 It is easily conducted so as to suppress overheating of the device 80.

As a result, it is possible to provide a motor controller and a method of manufacturing the same, which can improve heat dissipation efficiency to prevent malfunction and damage of the heat dissipation object and achieve miniaturization.

6 is a cross-sectional view showing a heat dissipation unit mounting structure of a controller for a motor according to a second embodiment of the present invention.

Referring to FIG. 6, in the second embodiment of the present invention, since the adhesive member 155 is applied between the conductive member 170 and the element 180, the space between the conductive member 170 and the heat dissipation unit 180 is more effectively. This is prevented from occurring so that the heat radiation efficiency is reduced.

Here, the adhesive member 155 preferably uses an adhesive having good heat resistance so as not to be deformed by the heat transmitted from the element 180, and the conductive member 170 and the heat dissipation part 150 are provided by the adhesive member 155 having excellent adhesion. ) Is connected, the fastening member coupled between the heat dissipation unit 150 and the printed circuit board 130 may be omitted.

7 is a cross-sectional view showing a heat dissipation unit mounting structure of a controller for a motor according to a third embodiment of the present invention.

Referring to FIG. 7, since the fitting parts 255 and 275 are formed in the conductive member 270 and the heat dissipation part 250, the conductive member 270 may be formed without a separate fastening member or an adhesive member. It is characterized by fitting the heat radiation unit 250.

The protrusion 255 formed on the heat dissipation part 250 is inserted into the groove part 275 formed on the conducting member 270 to make a connection between the heat dissipation part 250 and the conducting member 270. The shape of the groove portion 275 is formed in an inverted trapezoid shape.

Accordingly, when the protrusion 255 and the groove 275 are slid from the lateral direction, the protrusion 255 and the groove 275 are coupled to each other so that the gap is not formed between the heat radiating portion 250 and the conductive member 270. Will be.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

In addition, the controller for the motor and the manufacturing method thereof have been described as an example, but this is merely exemplary, and the controller and the manufacturing method of the present invention may be used in other products than the motor.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10 case 12 coupling part
14 support portion 16 fixed portion
19a: first connector 19b: second connector
30: printed circuit board 32: through hole
50: radiating part 70: conductive member
80 element

Claims (9)

Printed circuit board;
An element installed on the printed circuit board;
A heat dissipation unit installed on the printed circuit board; And
A conductive member disposed between the element and the heat dissipation unit;
The printed circuit board is formed with a through-hole portion into which the conductive member is inserted;
The element is inserted into the through hole and is in close contact with the conductive member;
The conductive member is thicker than the printed circuit board so that a gap is formed between the heat dissipation unit and the printed circuit board;
A fitting part for fitting fitting is formed on the conductive member and the heat dissipating part;
The fitting portion,
A protrusion formed on the heat dissipation unit; And
A groove formed in the conductive member and into which the protrusion is inserted;
The shape of the projection and the groove portion is a motor controller, characterized in that formed in the trapezoidal shape.
delete delete delete The method of claim 1,
The controller for the motor, characterized in that the adhesive member is applied between the conductive member and the heat radiating portion.
delete The method according to claim 1 or 5,
The conductive member is a motor controller, characterized in that comprises an aluminum oxide material.

delete delete
KR1020100056174A 2010-06-14 2010-06-14 Controller for motor and making method thereof KR101082501B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100056174A KR101082501B1 (en) 2010-06-14 2010-06-14 Controller for motor and making method thereof

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Application Number Priority Date Filing Date Title
KR1020100056174A KR101082501B1 (en) 2010-06-14 2010-06-14 Controller for motor and making method thereof

Publications (1)

Publication Number Publication Date
KR101082501B1 true KR101082501B1 (en) 2011-11-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101413604B1 (en) * 2012-11-12 2014-07-04 동아전장주식회사 Device of pulse width modulation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000150743A (en) * 1998-11-11 2000-05-30 Furukawa Electric Co Ltd:The Substrate for semiconductor device and manufacture thereof
KR101014418B1 (en) * 2006-08-23 2011-02-15 자화전자(주) Board for an electronic parts and lighting unit included the board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000150743A (en) * 1998-11-11 2000-05-30 Furukawa Electric Co Ltd:The Substrate for semiconductor device and manufacture thereof
KR101014418B1 (en) * 2006-08-23 2011-02-15 자화전자(주) Board for an electronic parts and lighting unit included the board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101413604B1 (en) * 2012-11-12 2014-07-04 동아전장주식회사 Device of pulse width modulation

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