KR20210012275A - Converter - Google Patents

Abstract

The present embodiment relates to a converter. The converter according to one aspect comprises: a housing having a space portion formed therein; one or more electronic components disposed in the space portion and including a first hole; and a bus bar module electrically connected to the electronic components, wherein the bus bar module includes: a bus bar including a coupling hole facing the first hole; a stand-off including a head portion coupled to the coupling hole and including a second hole formed in the upper surface thereof to be coupled with a screw that penetrates the first hole; and an insulator formed of an insulating material and disposed to surround the outer surface of the stand-off. According to the present invention, the number of components can be reduced, and a component fastening process can be simply performed.

Description

Converter{Converter}

This embodiment relates to a converter.

Engine electrical devices (starting devices, ignition devices, charging devices) and lighting devices are generally used as electrical devices for automobiles, but in recent years, most systems including chassis electrical devices are becoming electrical and electronic as vehicles are more electronically controlled. .

Various electrical equipment such as lamps, audio, heaters, air conditioners, etc. installed in automobiles are supplied with power from the battery when the vehicle is stopped, and power from the generator when driving. Capacity is being used.

In recent years, with the development of the information technology industry, various new technologies (motor-type power steering, Internet, etc.) aiming to increase the convenience of automobiles are being grafted into vehicles, and the development of new technologies that can make the most of the current automobile system will continue. It is a prospect.

Regardless of the soft or hard type, the hybrid electric vehicle (HEV) is equipped with a DC-DC converter to supply the electric load (12V). In addition, the DC converter, which serves as a generator (alternator) of a general gasoline vehicle, is supplying a voltage of 12V for electric load by downing the high voltage of the main battery (usually a high voltage battery of 144V or higher).

The DC-DC converter refers to an electronic circuit device that converts a DC power supply of a certain voltage to a DC power supply of another voltage, and is used in various areas such as television receivers and automotive electronics.

A plurality of electronic components for driving and a bus bar electrically connecting the electronic components are disposed inside the converter. Since a high current is applied to the busbar, the insulation structure of the busbar is an essential factor to be considered in order to prevent electrical shock from occurring with the housing or other electronic components.

The converter according to the prior art has an insulation component for insulation and a screw for fixing the insulation component to fix the busbar, but the number of components increases and separate manual work is required for fastening, so production efficiency There is a problem that this is hindered.

The present invention has been proposed in order to improve the above problems, and is to provide a converter capable of improving production efficiency by reducing the number of parts and lowering the manufacturing cost and improving the fastening process.

The converter according to the present embodiment includes: a housing formed in a space portion therein; At least one electronic component disposed in the space and including a first hole; And a bus bar module electrically connected to the electronic component, wherein the bus bar module includes: a bus bar including a coupling hole facing the first hole; A stand-off including a head coupled to the coupling hole, and having a second hole formed on an upper surface such that a screw passing through the first hole is coupled; And an insulator made of an insulating material disposed to surround the outer surface of the standoff.

In this embodiment, the standoff coupled to the busbar is integrally formed with the insulator to form an electrical connection structure and an insulating structure at the same time, thereby reducing the number of components and simplifying the component fastening process.

In addition, there is an advantage of forming a coupling groove to which the insulator is coupled to the bottom of the housing, so that the busbar can be firmly fixed in the housing.

1 is a perspective view of a converter according to an embodiment of the present invention.
2 is an exploded perspective view of a converter according to an embodiment of the present invention.
3 is a perspective view of a bus bar module according to an embodiment of the present invention.
4 is an exploded perspective view of a bus bar module according to an embodiment of the present invention.
5 is a cross-sectional view showing a coupling state of a bus bar in a housing according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected between the embodiments. It can be combined with and substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention are generally understood by those of ordinary skill in the art, unless explicitly defined and described. It can be interpreted as a meaning, and terms generally used, such as terms defined in a dictionary, may be interpreted in consideration of the meaning in the context of the related technology.

In addition, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular form may also include the plural form unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, it is combined with A, B, C. It may contain one or more of all possible combinations.

In addition, terms such as first, second, A, B, (a), and (b) may be used in describing the constituent elements of the embodiment of the present invention.

These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term.

And, when a component is described as being'connected','coupled' or'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also the component It may also include a case of being'connected','coupled', or'connected' due to another component between the and the other component.

In addition, when it is described as being formed or disposed on the “top (top) or bottom (bottom)” of each component, the top (top) or bottom (bottom) is not only when the two components are in direct contact with each other, It also includes the case where one or more other components are formed or disposed between the two components. In addition, when expressed as "upper (upper) or lower (lower)", the meaning of not only an upward direction but also a downward direction based on one component may be included.

1 is a perspective view of a converter according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the converter according to an embodiment of the present invention.

1 and 2, the converter 100 according to the embodiment of the present invention may have an external shape formed by the housing 110. The housing 110 has a substantially rectangular cross section, and a space 112 for accommodating one or more components therein may be formed.

A cover (not shown) may be coupled to the upper surface of the housing 110. The cover may be coupled to the upper surface of the housing 110 to cover the upper portion of the space part 112. A radiating fin protruding upward may be formed on the upper surface of the cover for radiating heat.

A sealing member 105 for sealing the space part 112 may be provided between the housing 110 and the cover. The sealing member 105 may be formed in a ring shape and may be coupled to a groove formed on the upper surface of the housing 110.

A plurality of electronic components for driving may be disposed in the space unit 112. For example, the electronic component may include an inductor module for obtaining inductance, a transformer for controlling voltage, and a field effect transistor (FET) device for amplifying voltage. The electronic component may be electrically coupled on a printed circuit board (not shown).

The electronic component may include a first electronic component 102, a second electronic component 104, and a third electronic component 106. The first to third electronic components 102, 104, and 106 may be one of the inductor module, the transformer, and the FET device described above, or other electronic components related to driving of the converter 100.

3 is a perspective view of a bus bar module according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a bus bar module according to an embodiment of the present invention, and FIG. 5 is a view of a bus bar in a housing according to an embodiment of the present invention. It is a cross-sectional view showing the combination.

1 to 5, the converter 100 according to an embodiment of the present invention may include a bus bar module 150. The busbar module 150 may be electrically connected to the electronic components or may be electrically connected to an external device connection terminal. As an example, the converted current in the converter 100 may be supplied to an external device through the bus bar 150.

For coupling with the bus bar 150, the electronic components may include a coupling portion 107 having a first hole 108 formed therein. Accordingly, when the screw S passes through the first hole 108 and is coupled to the second hole 172 to be described later, the busbar module 150 and the electronic component may be electrically connected to each other.

The bus bar module 150 may include a first bus bar 151 and a second bus bar 153. The first bus bar 151 may be electrically connected to the second electronic component 104 and the third electronic component 106. The second bus bar 153 may be electrically connected to the first electronic component 102. A connection part 152 may be disposed between the first bus bar 151 and the second bus bar 153. The connection part 152 may physically connect the first bus bar 151 and the second bus bar 153. The connection part 152 may be formed of a plastic material to insulate the first bus bar 151 and the second bus bar 153 from each other.

Each of the first bus bar 151 and the second bus bar 153 may be formed with a coupling hole 155 penetrating from an upper surface to a lower surface thereof. The coupling holes 155 may be provided in plural, and may be disposed to be spaced apart from each other. The coupling hole 155 may be disposed to face the first hole 108 in a vertical direction. A standoff 170 to be described later may be coupled to the coupling hole 155.

The busbar module 150 may be coupled to the bottom surface of the space part 112. The lower surfaces of the first bus bar 151 and the second bus bar 153 may be spaced apart from the bottom surface of the space unit 112 by a predetermined distance in the vertical direction. A coupling groove 114 to which the insulator 160 is coupled may be formed in the bottom surface of the space 112 by being recessed than other regions. The length of the coupling groove 114 in the vertical direction may be lower than the height of the insulator 160. The cross-sectional shape of the coupling groove 114 may be formed to correspond to the cross-sectional shape of the insulator 160.

In more detail, the first bus bar 151 and the second bus bar 153 may be combined with the insulator 160 and a stand off 170 disposed inside the insulator 160, respectively. I can. A second hole 172 to which the screw S is coupled may be formed on an upper surface of the stand-off 170. Accordingly, the screw S is coupled to the first hole 108 and the second hole 172 so that the bus bars 151 and 153 and the electronic component may be electrically connected. The insulator 160 and the stand-off 170 may be integrally formed by insert injection.

The stand-off 170 includes a head 177 coupled to the coupling hole 155, a first body 175 having a first diameter disposed under the head 177, and the first body It may include a second body 171 having a second diameter disposed under the 175 and a third body 173 having a third diameter disposed under the second body 171. In addition, a second hole 172 may be formed in the upper surface of the stand-off 170 to be recessed downward and to which the screw S is coupled. That is, the second hole 172 may be disposed inside the stand-off 170 to accommodate the screw S.

The head portion 177 may have a cross-sectional shape corresponding to the cross-sectional shape of the coupling hole 155. The outer circumferential surface of the head 177 may contact the inner circumferential surface of the coupling hole 155. Accordingly, the stand-off 170 and the bus bars 151 and 153 may be electrically connected. The standoff 170 may be formed of a metal material. The head portion 177 may be press-fit into the coupling hole 155.

The first body 175 is disposed under the head 177. The radius of the first body 175 is formed larger than the radius of the head 177. The first body 175 may be disposed inside the insulator 160. The first body 175 may be disposed in the receiving portion 162 formed inside the insulator 160.

The second body 171 is disposed under the first body 175. The radius of the second body 171 may be smaller than that of the first body 175. The second body 171 may be disposed inside the insulator 160. The second body 171 may be disposed in the receiving portion 162 formed inside the insulator 160.

The third body 173 is disposed under the second body 171. The radius of the third body 173 may be larger than that of the second body 171. The cross-sectional shape of the third body 173 may correspond to the cross-sectional shape of the first body 175. The third body 173 may be disposed inside the insulator 160. The third body 173 may be disposed on the receiving portion 162.

A rib groove 178 that is recessed than other regions may be formed on the outer circumferential surface of the head portion 177. In addition, ribs 157 protruding inwardly from other regions may be formed on the inner circumferential surface of the coupling hole 155. The rib 157 may be coupled to the rib groove 178. The rib 157 may be formed to be inclined so that the distance to the inner peripheral surface of the coupling groove 155 increases as it goes downward.

The second hole 172 may be formed to extend upward and downward from the head 177 to the inside of the third body 173.

The insulator 160 is disposed outside the standoff 170 so as to surround the outer surface of the standoff 170. An accommodation part 162 for accommodating the standoff 170 may be formed inside the insulator 160. The receiving part 162 may have a groove shape extending downward from the upper surface of the insulator 160. The accommodating part 162 includes a first accommodating portion 162a accommodating the first body 175, a second accommodating portion 162b accommodating the second body 171, and the third body ( It may include a third accommodating portion (162c) to accommodate the 173. Accordingly, the stand-off 170 may be disposed such that only the head 177 protrudes upward from the upper surface of the insulator 160. As described above, the head portion 177 may be disposed in the coupling hole 155.

The upper surface of the insulator 160 may support the lower surfaces of the bus bars 151 and 153.

The insulator 160 may be formed of an insulating material. The material of the insulator 160 may include resin or plastic. The insulator 160 may be accommodated in the coupling groove 114 formed on the bottom surface of the space part 112 to insulate the bus bars 151 and 153 and the housing 110 from each other.

According to the above configuration, since the standoff coupled with the busbar is integrally formed with the insulator to form an electrical connection structure and an insulating structure at the same time, there is an advantage that the number of parts is reduced and the part fastening process can be made simple. .

In addition, there is an advantage of forming a coupling groove to which the insulator is coupled to the bottom of the housing, so that the busbar can be firmly fixed in the housing.

In the above, even if all the constituent elements constituting an embodiment of the present invention have been described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the constituent elements may be selectively combined and operated in one or more. In addition, terms such as'include','consist of' or'have' described above mean that the corresponding component can be present unless otherwise stated, so other components are excluded. Rather, it should be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art, unless otherwise defined, to which the present invention belongs. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, 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 interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (12)

A housing having a space portion formed therein;
At least one electronic component disposed in the space and including a first hole; And
It includes a bus bar module electrically connected to the electronic component,
The busbar module,
A bus bar including a coupling hole facing the first hole;
A stand-off including a head coupled to the coupling hole, and having a second hole formed on an upper surface such that a screw penetrating the first hole is coupled; And
Converter comprising an insulator made of an insulating material disposed to surround the outer surface of the standoff.
The method of claim 1,
The standoff is,
A first body disposed under the head;
A second body disposed under the first body; And
Including a third body disposed under the second body,
The converter having a radius of the second body smaller than a radius of the first body or a radius of the third body.
The method of claim 2,
A receiving portion for receiving the stand-off is formed inside the insulator,
The receiving portion is a converter that is formed recessed downward from the upper surface of the insulator.
The method of claim 3,
The receiving part,
A first receiving portion in which the first body is disposed inside;
A second receiving portion in which the second body is disposed inside; And
Converter comprising a third receiving portion in which the third body is disposed inside.
The method of claim 1,
The standoff and the insulator are integrally formed by insert injection.
The method of claim 1,
A rib protruding inward is formed on the inner surface of the coupling hole,
A converter in which a rib groove to which the rib is coupled is formed on an outer surface of the head.
The method of claim 6,
The converter is disposed to be inclined so as to move the rib downward from the inner surface of the coupling hole.
The method of claim 1,
The cross-sectional shape of the head portion corresponds to the cross-sectional shape of the coupling hole.
The method of claim 1,
The insulator supports a lower surface of the bus bar to be spaced apart from a lower surface of the housing.
The method of claim 9,
A converter in which a coupling groove to which the insulator is coupled is disposed on the bottom surface of the housing, which is formed to be recessed than other regions.
The method of claim 10,
The height of the coupling groove is smaller than the height of the insulator.
The method of claim 1,
The bus bar includes a first bus bar and a second bus bar,
The first bus bar and the second bus bar are physically connected through a connection part, and are insulated from each other.








[Claim 12] The method of paragraph 1,
The bus bar includes a first bus bar and a second bus bar,
The first and second busbars are physically connected through a connection part and are insulated from each other.

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