KR101393156B1 - Eletronic Control Unit of Electric Power Steering Apparatus and Electric Power Steering Apparatus for Vehicle having The Same - Google Patents
Eletronic Control Unit of Electric Power Steering Apparatus and Electric Power Steering Apparatus for Vehicle having The Same Download PDFInfo
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- KR101393156B1 KR101393156B1 KR1020100025685A KR20100025685A KR101393156B1 KR 101393156 B1 KR101393156 B1 KR 101393156B1 KR 1020100025685 A KR1020100025685 A KR 1020100025685A KR 20100025685 A KR20100025685 A KR 20100025685A KR 101393156 B1 KR101393156 B1 KR 101393156B1
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- circuit board
- printed circuit
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- metal printed
- main printed
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- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention relates to an electronic control apparatus for an electric steering system and an electric steering system for an automotive vehicle having the same, and a metal printed circuit board on which a field effect transistor is mounted is horizontally arranged on a main printed circuit board, This eliminates the need for a jig or an additional process for joining the metal printed circuit board to the main printed circuit board, thereby improving manufacturing and assembling properties and reducing manufacturing costs. The metal printed circuit board and the main printed circuit board It is possible to prevent breakage of the field effect transistor due to the high temperature and to prevent errors, and to reduce the weight and cost of the electronic control device and to maximize the heat dissipation effect by applying and bonding insulation grease with good heat dissipation.
Description
The present invention relates to an electronic control device of an electric steering system. More specifically, a metal printed circuit board on which a field effect transistor is mounted is horizontally arranged on a main printed circuit board and directly mounted on a heat sink, thereby eliminating the need for a jig or an additional process for connecting the metal printed circuit board to the main printed circuit board This prevents the damage of the field effect transistor due to the high temperature, because it improves the manufacturability and assemblability and reduces the manufacturing cost, and by applying insulating grease with good insulation and heat dissipation between these metal printed circuit boards and the main printed circuit board and the heat sink. The present invention relates to an electronic control device for an electric steering system and an electric steering system for an automobile having the same, which can prevent errors and maximize heat dissipation while reducing the weight and cost of the electronic control system.
2. Description of the Related Art [0002] In general, a hydraulic steering apparatus (HPS) using a hydraulic pressure of a hydraulic pump is used as a steering apparatus of an automobile. However, Electric Power Steering Apparatus (EPS) using an electric motor has gradually become popular since the 1990s.
In the case of the hydraulic steering system, the hydraulic pump, which is the power source for supplying the steering assist power, is always driven by the engine and thus consumes energy regardless of whether the steering wheel is rotated. In the case of the electric steering system, When the steering torque is generated, the motor supplies the steering assist power proportional to the generated steering torque. Thus, using an electric steering system can improve energy efficiency compared to using a hydraulic steering system.
FIG. 1 is a schematic view of a general electric steering system, and FIG. 2 is a perspective view showing a state where a conventional electronic control system is mounted on the electric steering system.
As shown in these figures, generally, an electric steering apparatus includes a
The
The rack-and-
Therefore, when the driver operates the
The
In this electric power steering system, the
As shown in FIG. 2, the conventional
The main printed
The
The
In such a conventional electronic control device, since the metal printed circuit board is vertically coupled to the main printed circuit board, a jig or a process for the metal printed circuit board is further required, which lowers manufacturability and assemblability and raises manufacturing costs.
In addition, although a large amount of heat is generated in the metal printed circuit board on which the field effect transistor is mounted as the current required for driving the motor flows, there is a problem that the heat dissipating effect on the vertical lamination structure between the metal printed circuit board and the heat sink is deteriorated.
In addition, heat dissipation of the metal printed circuit board is not properly performed, and the expensive field effect transistor is damaged or an error occurs.
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a metal printed circuit board on which a field effect transistor is mounted, It is possible to improve the manufacturability and assemblability and reduce the manufacturing cost, and by applying insulating grease having good insulation and heat dissipation between the metal printed circuit board and the main printed circuit board and the heat sink, The object of the present invention is to prevent breakage of a field effect transistor due to high temperature, to prevent errors, and to reduce the weight and cost of an electronic control device while maximizing heat dissipation effect.
In order to achieve the above object, according to an embodiment of the present invention, there is provided an electronic control apparatus for an electric steering system including a heat sink, a shunt resistor, a main printed circuit board and a metal printed circuit board, And an electronic control unit of the electric motor-driven steering system is arranged in parallel with the printed circuit board.
According to another embodiment of the present invention, there is provided a motor vehicle including a motor generating a steering assist power based on a control signal transmitted from an electronic control device including a heat sink, a shunt resistor, a main printed circuit board and a metal printed circuit board Wherein the electronic control device is arranged such that the metal printed circuit board is arranged in parallel with the main printed circuit board.
According to the present invention, a metal printed circuit board on which a field effect transistor is mounted is horizontally arranged on the main printed circuit board and directly mounted on the heat sink, thereby requiring a jig or an additional process for coupling the metal printed circuit board to the main printed circuit board So that the manufacturing and assembling properties are improved and the manufacturing cost is reduced.
In addition, it is possible to prevent breakdown of the field effect transistor due to high temperature and to prevent errors, and to reduce the weight and cost of the electronic control device and to maximize the heat radiation effect by applying and bonding insulation grease with good heat dissipation between these boards and the heat sink There is an effect that can be done.
FIG. 1 is a schematic view of a general electric steering apparatus,
2 is an exploded perspective view showing an electronic control unit of a conventional electric power steering apparatus,
3 and 4 are exploded perspective views of the electronic control unit of the electric power steering system according to the embodiment of the present invention, viewed from one side and the other side.
Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."
3 and 4 are exploded perspective views of the electronic control unit of the electric power steering system according to the embodiment of the present invention, viewed from one side and the other side.
As shown in these drawings, an
The
The
A component such as a
The
The metal printed
The
The
The
The
Insulating grease is applied to the
The
Accordingly, the heat dissipation performance is improved as compared with the conventional electronic control device, the durability life of the expensive parts becomes long, the error due to overheating is reduced, and the cost is reduced.
After the
Insulated grease is used in the general industry and is made of a material with high insulation and heat conductivity based on silicon, synthetic silicon, urethane, etc., so that a metal printed circuit board with a high- 340 to the
1, the
Here, the
According to the present invention, a metal printed circuit board on which a field effect transistor is mounted is horizontally arranged on the main printed circuit board and directly mounted on the heat sink, thereby requiring a jig or an additional process for coupling the metal printed circuit board to the main printed circuit board So that the manufacturing and assembling properties are improved and the manufacturing cost is reduced.
The metal printed circuit board and the printed circuit board and the heat sink are coated with insulating grease having good insulation and heat dissipation to prevent breakage of the field effect transistor due to high temperature and to prevent errors, It is possible to maximize the heat radiation effect while reducing the cost.
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.
It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.
The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.
310: cover 320: heat sink
325: Support surface 330: Main printed circuit board
333: Shunt resistor 340: Metal printed circuit board
345: field effect transistor 350: fastening member
Claims (10)
The metal printed circuit board is arranged in parallel to the main printed circuit board, the terminal of the metal printed circuit board is coupled to the main printed circuit board, and the metal board of the metal printed circuit board is coupled to the heat sink Of the electric steering system.
Wherein the heat dissipation plate is provided with a corresponding support surface so that the metal printed circuit board and the main printed circuit board are arranged in parallel.
Wherein the heat sink is coated with insulating grease at a corresponding position of the shunt resistor and the metal printed circuit board to be coupled to the main printed circuit board and the metal printed circuit board.
Wherein the support surface of the heat dissipation plate is formed at a corresponding position of the shunt resistor and the metal printed circuit board, and the support surface is coated with insulating grease and is coupled to the main printed circuit board and the metal printed circuit board Electronic control device of electric steering system.
The electronic control device includes:
The metal printed circuit board is arranged in parallel to the main printed circuit board, the terminal of the metal printed circuit board is coupled to the main printed circuit board, and the metal board of the metal printed circuit board is coupled to the heat sink Electric steering system of an automobile.
Wherein the heat dissipation plate is provided with a corresponding support surface so that the metal printed circuit board and the main printed circuit board are arranged side by side and are coupled to each other.
Wherein the heat sink is coated with insulating grease at a corresponding position of the shunt resistor and the metal printed circuit board to be coupled to the main printed circuit board and the metal printed circuit board.
Wherein the support surface of the heat dissipation plate is formed at a corresponding position of the shunt resistor and the metal printed circuit board, and the support surface is coated with insulating grease and is coupled to the main printed circuit board and the metal printed circuit board Electric motorized steering of a car.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100025685A KR101393156B1 (en) | 2010-03-23 | 2010-03-23 | Eletronic Control Unit of Electric Power Steering Apparatus and Electric Power Steering Apparatus for Vehicle having The Same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100025685A KR101393156B1 (en) | 2010-03-23 | 2010-03-23 | Eletronic Control Unit of Electric Power Steering Apparatus and Electric Power Steering Apparatus for Vehicle having The Same |
Publications (2)
Publication Number | Publication Date |
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KR20110106575A KR20110106575A (en) | 2011-09-29 |
KR101393156B1 true KR101393156B1 (en) | 2014-05-09 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020100025685A KR101393156B1 (en) | 2010-03-23 | 2010-03-23 | Eletronic Control Unit of Electric Power Steering Apparatus and Electric Power Steering Apparatus for Vehicle having The Same |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20150114046A (en) * | 2014-03-31 | 2015-10-12 | 대우전자부품(주) | Pcb having cooling and grounding |
CN109318982B (en) * | 2018-08-02 | 2021-05-25 | 江苏大学 | Parameter matching method for hybrid power steering system |
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2010
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