KR20140021286A - Apparatus for fixing parts of motor for cooling - Google Patents

Apparatus for fixing parts of motor for cooling Download PDF

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Publication number
KR20140021286A
KR20140021286A KR1020120087470A KR20120087470A KR20140021286A KR 20140021286 A KR20140021286 A KR 20140021286A KR 1020120087470 A KR1020120087470 A KR 1020120087470A KR 20120087470 A KR20120087470 A KR 20120087470A KR 20140021286 A KR20140021286 A KR 20140021286A
Authority
KR
South Korea
Prior art keywords
heat dissipation
fixing
leaf spring
dissipation wall
electronic components
Prior art date
Application number
KR1020120087470A
Other languages
Korean (ko)
Inventor
이승수
Original Assignee
탑에어주식회사
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 탑에어주식회사 filed Critical 탑에어주식회사
Priority to KR1020120087470A priority Critical patent/KR20140021286A/en
Publication of KR20140021286A publication Critical patent/KR20140021286A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The present invention relates to an apparatus for fixing components of a motor for cooling. The present invention includes: a motor body which includes a heat radiation wall and a component mounting room which mounts electronic components; a printed circuit board which mounts the electronic components and is mounted in the component mounting room; a leaf spring which pressurizes the components which generate heat to come into contact with the heat radiation wall; and a fixing unit which fixes the leaf spring to the heat radiation wall. According to the present invention, damage to the components is prevented when the electronic components in the component mounting room of the motor are fixed to the heat radiation wall. The electronic components are easily and simply fixed to the heat radiation wall.

Description

Motor Cooling Part Fixing Device {APPARATUS FOR FIXING PARTS OF MOTOR FOR COOLING}

The present invention relates to a motor cooling component fixing device.

A motor (electric motor) converts electrical energy into mechanical energy to generate rotational or linear driving force. Motor types are largely classified into a DC motor and an AC motor. DC motors are widely used as brushless DC motors with high torque and excellent controllability.

In general, a motor is provided with an electronic component mounting chamber in a motor main body, and electronic components for controlling a motor are provided in the electronic component mounting chamber, for example, a transistor, a diode, a resistor, and the like. Electronic components are mounted on printed circuit boards and mounted in component mounting chambers. And the component mounting chamber is fastened by a plurality of bolts in the state covered by the cover.

However, electronic components mounted in the electronic component mounting chamber generate heat when the motor is operated, and heat generated from the electronic component should be radiated to the outside of the component mounting chamber smoothly. If the heat generated from the electronic components does not radiate to the outside of the component mounting chamber smoothly, the electronic components may overheat and cause a motor malfunction.

As an example of a conventional structure for dissipating heat generated from electronic components located in the electronic component mounting chamber to the outside, as shown in FIG. 1, a heat dissipation wall 20 is provided at one side of the component mounting chamber of the motor body 100. Heat dissipation fins (F) are provided on an outer circumferential surface of the heat dissipation wall 200, and the heat-generating components 11 of the electronic components 10 of the printed circuit board 30 are in contact with the heat dissipation wall 20. S) is fastened to the heat dissipation wall 20. Due to this, the heat generated from the electronic parts 11 is transferred through the heat dissipation wall 20 and the heat dissipation fins F to dissipate to the outside, thereby dissipating to the outside. To cool them down.

However, the conventional structure as described above forms a through hole in the electronic component 11 to contact the electronic component 11 to the heat dissipation wall 20 using a screw, thereby causing damage to the electronic component 11 such as a crack. It is triggered. In addition, since the other components 10 are located near the electronic component 11 when the screw S penetrates the electronic component 11 and is fastened to the heat dissipation wall 20, it is very difficult to fasten the screw S. This lowers the assembly productivity.

An object of the present invention is to prevent breakage of components when fixing the electronic components provided in the component mounting chamber of the motor to the heat dissipation wall.

In addition, another object of the present invention is to simplify and simplify the task of fixing the electronic components provided in the component mounting chamber of the motor to the heat dissipation wall.

In order to achieve the object of the present invention, there is provided a heat dissipation wall and a motor body including a component mounting chamber in which electronic components are mounted; A printed circuit board mounted with electronic components and mounted in the mounting chamber; A leaf spring pressurizing a heat generating part of the electronic parts to be in contact with a heat dissipation wall; There is provided a motor cooling part fixing device including fixing means for fixing the leaf spring to the heat dissipation wall.

The leaf spring extends in a form in which a plurality of bases are formed perpendicular to the heat dissipation wall, a plurality of feet are formed at one end of the base portion, and bent to the feet, respectively, to press the electronic components with elastic force. It is preferable to include a component pressing portion and a fixing portion provided at the other end of the base portion.

The component pressing unit is preferably formed in a rounded curved shape.

The fixing means is preferably provided on the upper surface of the heat dissipating wall and includes a fixing groove into which a portion of the leaf spring is inserted.

The fixing groove has a uniform width and length, it is preferable that the longitudinal direction of the fixing groove is located in parallel with the row of the electronic components.

The fixing means preferably includes a plurality of screws for fastening a portion of the leaf spring to the heat dissipation wall.

According to the present invention, since the component pressing parts of the leaf springs press each side of the heating electronic parts by elastic force to closely adhere the electronic parts to the heat dissipation wall, the heat generated from the electronic parts is transferred to the outside of the component mounting chamber through the heat dissipation wall. It is effectively discharged to prevent malfunction due to heating of the electronic components. In addition, since the component pressurizing portion of the leaf spring presses the electronic component to closely adhere the electronic component to the heat dissipation wall, the through-hole is formed in the electronic component since the formation of the through hole for fixing the electronic component to the heat dissipation wall is excluded. This prevents damage to electronic components that may be caused.

In addition, the present invention is fixed to the upper portion of the heat dissipating wall by the screw spring to press the electronic component by the elastic force it is easier to fasten the plate spring to the heat dissipating wall. In addition, in the second embodiment of the present invention, since the leaf spring is fixed by inserting the fixing portion of the leaf spring into the fixing groove provided on the upper surface of the heat dissipation wall, the fixing work of the leaf spring is very easy and simple. As described above, the present invention is simple and easy to fix the heat generating electronic components provided in the component mounting chamber to the heat dissipation wall, thereby shortening the assembly time of the components and increasing productivity.

1 is a plan view showing a structure for fixing an electronic component provided in a component mounting chamber of a conventional motor body to a heat dissipation wall,
2 is a perspective view showing a first embodiment of a motor cooling part fixing device according to the present invention;
Figure 3 is a side cross-sectional view showing a first embodiment of a motor cooling part fixing device according to the present invention,
4, 5 is a cross-sectional side view and a plan view showing a second embodiment of the motor cooling component fixing apparatus according to the present invention;
Figure 6 is a perspective view showing a leaf spring constituting a second embodiment of the motor cooling part fixing device according to the present invention.

Hereinafter, an embodiment of a motor cooling part fixing device according to the present invention will be described with reference to the accompanying drawings.

2 is a perspective view showing a first embodiment of a motor cooling part fixing device according to the present invention. Figure 3 is a side sectional view showing a first embodiment of a motor cooling part fixing device according to the present invention.

2 and 3, a first embodiment of a motor cooling part fixing device according to the present invention will be described.

The motor main body 100 is provided with a component mounting chamber PR in which the electronic components 10 are mounted. The heat dissipation wall 20 is provided on one side wall of the component mounting chamber PR, and a plurality of heat dissipation fins may be provided on the outer circumferential surface of the heat dissipation wall 20. The heat dissipation wall 20 has a height higher than an upper end surface of the component mounting chamber PR, and a cross-sectional shape is formed in a shape obtained by cutting a portion of a circle. A printed circuit board 30 on which electronic components are mounted is provided in the component mounting chamber PR. The heat generating electronic components 11 that generate a lot of heat among the electronic components mounted on the printed circuit board 30 are positioned adjacent to the heat dissipation wall 20.

The leaf spring 40 is fixed to the heat dissipation wall 20 by the fixing means 50. The fixing means 50 is preferably located above the heat dissipation wall 20. The leaf spring 40 presses the heat generating electronic components 11 such that the heat generating electronic components 11 closely contact the heat radiating wall 20 in a state where the leaf spring 40 is fixed to the heat radiating wall 20 by the fixing means 50. .

The leaf spring 40 includes a base portion 41 positioned perpendicular to the heat dissipation wall 20, a plurality of foot portions 42 extending from one end of the base portion 41, and the foot portion ( 42 are formed to be bent in the form of bent in each of the component pressing portion 43 for pressing the heat generating parts 11 with an elastic force, respectively, and the fixing portion 44 provided at the other end of the base portion 41 It is preferable to include.

The leaf spring 40 has a uniform thickness throughout. The base portion 41 is preferably formed in a square shape. Preferably, the feet 42 each have a predetermined width and length and are formed in the same number as the number of the heating electronic components 11. The foot portions 11 are preferably perpendicular to the base portion 41. The component pressing portion 43 is preferably formed in a rounded curved plate shape. The fixing portion 44 is bent to one side of the base portion 41, preferably formed in a square shape. The fixing part 44 faces upward with respect to the base part 41 and the foot parts 42 face downward with respect to the base part 41.

The fixing means 50 includes a plurality of screws for fastening the fixing portion 44 of the leaf spring 40 to the heat dissipation wall 20. Screw holes 21 are provided on the heat dissipation wall 20. The fixing portion 44 of the leaf spring 40 is provided with a plurality of through holes equal to the number of screws, and the screws penetrate through the through holes of the fixing portion 44, respectively. The fixing part 44 is fixed to the heat dissipation wall 20 by being fastened to the thread hole 21. It is preferable that two screws of the fixing means 50, and also two through holes of the fixing portion 44 of the leaf spring (40).

4 and 5 are a front sectional view and a plan view showing a second embodiment of a motor cooling part fixing device according to the present invention.

4 and 5, a second embodiment of a motor cooling part fixing device according to the present invention will be described.

The second embodiment of the motor cooling part fixing device according to the present invention has the same configuration as the first embodiment, and fixing means for fixing the leaf spring 40 'and the leaf spring 40' to the heat dissipation wall 20. 50 'is different. Therefore, the leaf spring 40 'and the fixing means 50' will be described.

The leaf spring 40 ′ includes a base portion 41 positioned perpendicular to the heat dissipation wall 20, a plurality of foot portions 42 extending from one end portion of the base portion 41, and the foot portion. Component pressing parts 43 extending in a bent shape to the respective 42 parts to press the electronic parts 11 with an elastic force, respectively, and a high bending portion extending to the other end of the base part 41 in a predetermined area; Including a government 44 ', the fixing portion 44' is directed downward relative to the base portion 41. That is, the fixing part 44 ', the base part 41, and the foot part 42 form a depression shape. The angle between the fixing portion 44 'and the base portion 41 is preferably smaller than 90 degrees or 90 degrees.

The leaf spring 40 has a uniform thickness throughout. The base portion 41 is preferably formed in a square shape. Preferably, the feet 42 each have a predetermined width and length and are formed in the same number as the number of the heating electronic components 11. The foot portions 42 are preferably perpendicular to the base portion 41. The component pressing portion 43 is preferably formed in a rounded curved plate shape. The fixing portion 44 'is preferably formed in a quadrangular shape, and the horizontal length of the fixing portion 44' is preferably smaller than the horizontal length of the base portion 41.

The fixing means 50 ′ is preferably provided on the top surface of the heat dissipation wall 20 and includes a fixing groove into which a part of the leaf spring 40 is inserted. Preferably, the fixing groove has a rectangular cross-sectional shape having a uniform width and length. It is preferable that the horizontal longitudinal direction of the fixing groove is located in parallel with the rows of the electronic components. The fixing part 44 'of the leaf spring 40' is inserted into the fixing groove of the heat dissipation wall 20.

The foot parts 42 of the leaf spring 40 pressurize the heating electronic components 11 by elastic force while the fixing portion 44 'of the leaf spring 40 is inserted into the fixing groove of the heat dissipation wall 20. The electronic components 11 are brought into close contact with the heat dissipation wall 20.

Hereinafter, the operation and effects of the motor cooling part fixing device according to the present invention will be described.

First, in the case of the first embodiment of the motor cooling component fixing apparatus according to the present invention, the electronic component 11 that generates heat among the electronic components 10 mounted in the component mounting chamber PR provided in the motor main body 100. The screw holes 21 of the heat dissipation wall 20 pass through the screws, which are the fixing means 50, respectively, in the through holes of the fixing part 44 while the component pressing parts 43 of the leaf spring 40 are pressed. ) Will be tightened. In the state in which the fixing portion 44 of the leaf spring 40 is fixed to the heat dissipation wall 20 by screws which are fixing means 50, the component pressing portions 43 of the leaf spring 40 are each responsive by elastic force. The electronic component 11 is pressed to bring the electronic component 11 into close contact with the heat dissipation wall 20. Since the electronic component 11 is in close contact with the heat dissipation wall 20, the heat generated from the electronic component 11 is radiated to the outside of the component mounting chamber PR through the heat dissipation wall 20, thereby cooling the electronic component 11. .

In the second embodiment of the motor cooling part fixing device according to the present invention, the fixing portion 44 'of the leaf spring 40' is mounted on the fixing groove which is the fixing means 50 'provided on the upper surface of the heat dissipation wall 20. When inserted and fixed downward, the component pressing portion 43 of the leaf spring 40 'moves from top to bottom while pressing each side of each of the heat generating electronic components 11 adjacent to the heat dissipation wall 20. While the electronic component 11 is in close contact with the heat dissipation wall 20 by the elastic force.

The component mounting chamber PR of the motor main body 100 is covered by a cover (not shown) after all of its internal parts are mounted, and one surface of the cover is heat dissipated as the cover covers the component mounting chamber PR. As the base portion 41 of the leaf spring 40 'is supported while being in contact with the upper surface of the wall 20, the fixing of the leaf spring 40' becomes more firm.

As described above, according to the present invention, the component pressurizing portions 43 of the leaf springs 40 and 40 'respectively press each side of the heat generating electronic components 11 by elastic force to dissipate the electronic components to the heat dissipation wall 20. Since the heat generated from the electronic components 11 is effectively discharged to the outside of the component mounting chamber PR through the heat dissipation wall 20, it is prevented from malfunction due to heating of the electronic components 11. In addition, since the component pressing portion 43 of the leaf springs 40 and 40 ′ presses the electronic component 11, the electronic component 11 is brought into close contact with the heat dissipation wall 20, thereby dissipating the electronic component 11. Forming a through hole for fixing to the wall 20 is eliminated, thereby preventing breakage of the electronic component that may be caused by forming the through hole in the electronic component.

In addition, the present invention is fixed to the plate spring 40, 40 'for pressing the electronic component by the elastic force by the screws of the fixing means 50 on the upper portion of the heat dissipation wall 20, so that the plate spring 40 Fastening to the heat dissipation wall 20 will be easier. Further, in the second embodiment of the present invention, the plate spring 40 'is fixed by the fixing portion 44' of the leaf spring (40 ') by being inserted into the fixing groove which is the fixing means 50' provided on the top surface of the heat dissipation wall 20 Since 40 is fixed, the fixing operation of the leaf spring 40 is very easy and simple. As described above, the present invention is simple and easy to fix the heat generating electronic component 11 provided in the component mounting chamber PR to the heat dissipation wall 20, thereby shortening the assembly time of the parts and improving the assembly productivity. .

100; Motor body 30; Printed circuit board
40, 40 '; Leaf spring 50,50 '; Fixing means

Claims (6)

A motor body having a heat dissipation wall and including a component mounting chamber in which electronic components are mounted;
A printed circuit board mounted with electronic components and mounted in the mounting chamber;
A leaf spring pressurizing a heat generating part of the electronic parts to be in contact with a heat dissipation wall;
And a fixing means for fixing the leaf spring to the heat dissipation wall. The method of claim 1, wherein the leaf spring is a base portion which is located perpendicular to the heat dissipation wall and a plurality of foot portions formed on one side end of the base portion, and is formed extending in a form bent to each of the foot portion and the electrons And a fixing part provided at the other end of the base part, and a pressing part for pressing the parts with elastic force, respectively. 3. The apparatus of claim 2, wherein the component pressing portion is formed in a rounded curved plate shape. The apparatus of claim 1, wherein the fixing means includes a fixing groove provided on an upper surface of the heat dissipation wall and into which a portion of the leaf spring is inserted. The apparatus of claim 4, wherein the fixing groove has a uniform width and length, and the longitudinal direction of the fixing groove is located in parallel with the rows of the electronic components. The motor cooling component fixing apparatus of claim 1, wherein the fixing unit includes a plurality of screws that fasten a portion of the leaf spring to the heat dissipation wall.
KR1020120087470A 2012-08-09 2012-08-09 Apparatus for fixing parts of motor for cooling KR20140021286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120087470A KR20140021286A (en) 2012-08-09 2012-08-09 Apparatus for fixing parts of motor for cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120087470A KR20140021286A (en) 2012-08-09 2012-08-09 Apparatus for fixing parts of motor for cooling

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KR20140021286A true KR20140021286A (en) 2014-02-20

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KR1020120087470A KR20140021286A (en) 2012-08-09 2012-08-09 Apparatus for fixing parts of motor for cooling

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106256074A (en) * 2014-03-20 2016-12-21 施乐百欧洲公司 Motor, especially outer rotor motor and the Intermediate insulator for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106256074A (en) * 2014-03-20 2016-12-21 施乐百欧洲公司 Motor, especially outer rotor motor and the Intermediate insulator for motor

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