KR102780016B1 - High voltage type junction-block - Google Patents

Abstract

An invention is disclosed for a junction block for high-current power distribution. The disclosed junction block for high-current power distribution is characterized by including: a main printed circuit board, and a jumping bus bar that electrically connects circuit areas spaced apart within the main printed circuit board while being exposed to the outside of the main printed circuit board.

Description

Junction block for high current power distribution {HIGH VOLTAGE TYPE JUNCTION-BLOCK}

The present invention relates to a junction block for high-current power distribution, and more particularly, to a junction block for high-current power distribution, which allows the flow of high current through the exposed jumping bus bar by connecting different circuit areas of the printed circuit board with jumping power, thereby increasing heat dissipation efficiency, and improving the assemblability of a printed circuit board assembly for power distribution and reducing manufacturing terminals by eliminating the need for anything other than the jumping bus bar for jumping power connection.

Vehicles use a battery as a power source to drive various electrical components, such as spark plugs that go into the engine, and a vehicle junction block to distribute the current supplied from the battery to these electrical components.

The existing junction block includes a current terminal to which power is supplied, a bus bar for distributing the current supplied from the current terminal, and a plurality of fuses connected to the bus bar to supply the current to the desired electrical components. Here, the bus bar is formed in a plate-like conductor shape and is fixed to the current terminal and the housing by bolts. In addition, the fuse is detachably fixed to the bus bar from the outside.

As a related technology, domestic patent registration publication No. 10-1734683 (registration date: May 2, 2017, title: vehicle power distribution device) has been proposed.

The above-mentioned technical configuration is background technology to help understanding of the present invention, and does not mean a conventional technology widely known in the technical field to which the present invention belongs.

The junction block for power distribution in existing vehicles is manufactured by laminating a lower printed circuit board and an upper circuit board, attaching a bus bar to allow a large current to the upper circuit board, and electrically connecting the circuit pattern of the lower printed circuit board and the bus bar of the upper circuit board using a fork terminal, which causes the assembly process to be complicated, reduces productivity, and increases the manufacturing cost.

Therefore, there is a need to improve this.

The present invention has been made to improve the above problems, and the purpose of the present invention is to provide a junction block for high-current power distribution, which allows the flow of a large current through the exposed jumping bus bar when connecting different circuit areas of the printed circuit board with jumping power, thereby increasing heat dissipation efficiency, and improving the assemblability of a printed circuit board assembly for power distribution and reducing manufacturing terminals by eliminating the need for anything other than the jumping bus bar for jumping power connection.

A junction block for high-current power distribution according to the present invention comprises: a main printed circuit board; and a jumping bus bar that electrically connects circuit areas spaced apart within the main printed circuit board while being exposed to the outside of the main printed circuit board.

The above main printed circuit board is characterized by electrically connecting the sub-printed circuit boards after arranging them so as to face each other.

The above main printed circuit board includes a first circuit region that receives power from the outside and has a first circuit pattern patterned on it; a second circuit region that is spaced apart from the first circuit region, receives power, controls voltage and current according to set capacities, and then transmits and guides them to the outside, and has a second circuit pattern patterned on it; and a third circuit region that is spaced apart from the first circuit region and the second circuit region, receives power from the first circuit region or the second circuit region, supplies power to mounted electronic components, and has a third circuit pattern patterned on it.

The above second circuit area is characterized in that it receives power from the first circuit area or the third circuit area.

The above jumping bus bar includes an inverse bar that jumps and connects the first circuit pattern and the second circuit pattern; and an outverse bar that jumps and connects the first circuit pattern and the third circuit pattern, or the second circuit pattern and the third circuit pattern.

The above main printed circuit board is characterized in that it has exposure holes to expose a portion of the first circuit pattern, the second circuit pattern and the third circuit pattern that are patterned while being embedded, the inverse bar is mounted on the first circuit pattern and the second circuit pattern through the corresponding exposure holes, and the outverse bar is mounted on the first circuit pattern and the third circuit pattern or the second circuit pattern and the third circuit pattern through the corresponding exposure holes.

As described above, the junction block for distributing high-current power according to the present invention, unlike the prior art, is a jumping bus bar exposed on a printed circuit board, and by connecting different circuit areas of the printed circuit board with jumping power, the flow of high current is allowed through the exposed jumping bus bar, thereby increasing heat dissipation efficiency, and since no additional material other than the jumping bus bar for connecting the jumping power source is required, the assemblability of the printed circuit board assembly for distributing power can be improved and manufacturing terminals can be reduced.

FIG. 1 is a perspective view of a junction block for high-current power distribution according to one embodiment of the present invention.
Figure 2 is a perspective view of a main part of a junction block for high-current power distribution according to one embodiment of the present invention.
FIG. 3 is a plan view of a junction block for high-current power distribution according to one embodiment of the present invention.
Figure 4 is an exploded perspective view of the main parts of a junction block for high-current power distribution according to one embodiment of the present invention.
FIG. 5 is a cross-sectional view of a junction block for high-current power distribution according to one embodiment of the present invention.

Hereinafter, an embodiment of a junction block for high-current power distribution according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines and the size of components illustrated in the drawings may be exaggerated for the sake of clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view of a junction block for distributing a high-current power supply according to one embodiment of the present invention, and FIG. 2 is a perspective view of a main part of a junction block for distributing a high-current power supply according to one embodiment of the present invention.

FIG. 3 is a plan view of a junction block for distributing a high-current power supply according to one embodiment of the present invention, and FIG. 4 is an exploded perspective view of a main part of a junction block for distributing a high-current power supply according to one embodiment of the present invention.

FIG. 5 is a cross-sectional view of a junction block for high-current power distribution according to one embodiment of the present invention.

Referring to FIGS. 1 to 5, a junction block (100) for high-current power distribution according to one embodiment of the present invention includes a main printed circuit board (120), a sub-printed circuit board (130), and a jumping bus bar (140).

The main printed circuit board (120) receives power and signals from a power source (10) such as a battery, processes them internally, and then distributes power and signals to the vehicle's electrical components (20).

At this time, the junction block (100) according to the present invention forms an outer shape by a casing (110). The casing (110) can be transformed into various shapes and is formed to be open on at least one side.

Therefore, the casing (110) is provided with a main printed circuit board (120) and a sub-printed circuit board (130) laminated inside.

In particular, as the number of electrical components (20) in a vehicle increases, the main printed circuit board (120) with a fixed flat surface area becomes unable to smoothly distribute power and signals to various electrical components (20).

Therefore, a sub-printed circuit board (130) is provided. The sub-printed circuit board (130) is electrically connected to the main printed circuit board (120) and serves to expand the space for distributing power and signals to a plurality of electrical components (20).

At this time, the main printed circuit board (120) maintains its shape by the base board (121), which is an insulating material.

In addition, the jumping bus bar (140) is exposed to the outside of the main printed circuit board (120) and serves to electrically connect the circuit areas (122, 123, 124) spaced apart within the main printed circuit board (120).

In particular, the jumping bus bar (140) is provided so as to be exposed on the upper side of the main printed circuit board (120) opposite to the lower side facing the sub printed circuit board (130), thereby improving the heat dissipation performance of the main printed circuit board (120), and is formed to have a set cross-sectional volume to ensure smooth conduction of a large current.

Meanwhile, the main printed circuit board (120) is divided into a first circuit area (122), a second circuit area (123), and a third circuit area (124).

At this time, at least one of the first circuit area (122), the second circuit area (123), and the third circuit area (124) is electrically connected to the circuit pattern of the sub-printed circuit board (130).

In detail, the first circuit area (122) receives power from the outside. In addition, the first circuit area (122) in the base board (121) is patterned with a first circuit pattern (125). At this time, the base board (121) may be equipped with electronic components such as terminals or fuses that are electrically connected to each other by the first circuit pattern (125) within the first circuit area (122).

The second circuit area (123) is arranged apart from the first circuit area (122) on the base board (121), receives power, controls voltage and current according to the set capacity, and then transmits and guides to the outside, especially to the vehicle's electrical equipment (20). In addition, the second circuit area (123) has a second circuit pattern (126) patterned on the base board (121) so that power and signals can be applied.

In addition, the baseboard (121) may be equipped with electronic components such as terminals or fuses that are electrically connected to each other by a second circuit pattern (126) within the second circuit area (123).

The third circuit region (124) is separated from the first circuit region (122) and the second circuit region (123) on the base board (121), and a third circuit pattern (127) is patterned on the base board (121) to supply power from the first circuit region (122) or the second circuit region (123) to the mounted electronic components. Of course, the base board (121) may be provided with electronic components such as terminals or fuses that are electrically connected to each other by the third circuit pattern (127) within the third circuit region (124).

In particular, the second circuit area (123) can receive power from the first circuit area (122) or the third circuit area (124).

Of course, the first circuit pattern (125) and the second circuit pattern (126), the first circuit pattern (125) and the third circuit pattern (127), the second circuit pattern (126) and the third circuit pattern (127), or the first circuit pattern (125), the second circuit pattern (126), and the third circuit pattern (127) may be directly connected to conduct current. However, in this case, the copper foil forming the first circuit pattern (125), the second circuit pattern (126), and the third circuit pattern (127) may not smoothly conduct a large current, and a fire may occur due to an overload.

Therefore, a relatively large jumping bus bar (140) according to the present invention is applied. In addition, since the jumping bus bar (140) is provided to protrude outwardly from the main printed circuit board (120), the heat dissipation of the main printed circuit board (120) is improved.

Meanwhile, the jumping bus bar (140) may include an inverse bar (142) and an outverse bar (144).

The inverse bar (142) serves to jump-connect the first circuit pattern (125) and the second circuit pattern (126). At this time, the inverse bar (142) is electrically connected to the corresponding first circuit pattern (125) and second circuit pattern (126) with both edges bent downward along the axial direction.

In addition, the outbus bar (144) serves to jump-connect the first circuit pattern (125) and the third circuit pattern (127), or the second circuit pattern (126) and the third circuit pattern (127).

The outbus bar (144) is electrically connected to the corresponding first circuit pattern (125) and third circuit pattern (127), or the second circuit pattern (126) and third circuit pattern (127), with both edges bent downward along the axial direction.

For convenience, the outbus bar (144) is illustrated as electrically connecting the corresponding first circuit pattern (125) and third circuit pattern (127) with both edges bent downward along the axial direction.

The inverse bar (142) and the outverse bar (144) can be transformed into various shapes.

Meanwhile, the jumping bus bar (140) can be electrically connected to the first circuit pattern (125), the second circuit pattern (126), and the third circuit pattern (127) in various ways.

For example, the main printed circuit board (120) has an exposure hole (128) formed to expose a portion of the first circuit pattern (125), the second circuit pattern (126), and the third circuit pattern (127) that are patterned while embedded.

And, the inverse bar (142) is directly mounted on the first circuit pattern (125) and the second circuit pattern (126) through the corresponding exposure hole (128).

In addition, the outbus bar (144) is directly mounted on the first circuit pattern (125) and the third circuit pattern (127), or the second circuit pattern (126) and the third circuit pattern (127) through the corresponding exposed hole (128).

Additionally, the area where the inverse bar (142) is mounted on the first circuit pattern (125) and the second circuit pattern (126) can be waterproofed.

Likewise, the portion where the outbus bar (144) is mounted on the first circuit pattern (125) and the third circuit pattern (127), or the second circuit pattern (126) and the third circuit pattern (127), can be waterproofed.

At this time, the jumping bus bar (140) forms an edge bend portion (146) with both edges bent downward along the axial direction so as to be spaced apart from the base board (121) by a set distance.

The jumping bus bar (140) is separated from the base board (121) in the area between the edge bends (146) on both sides, so that heat and electromagnetic waves generated from the jumping bus bar (140) do not affect electronic components mounted on the base board (121).

Accordingly, since the jumping bus bar (140), which is a conductive material, is directly electrically connected to the segmented circuit patterns (125, 126, 127) of the main printed circuit board (120) compared to the conventional one, the manufacturing process of the main printed circuit board (120) is simple, so the manufacturing time can be shortened and the manufacturing cost can be reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

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

10: Power supply 20: War equipment
100: Junction block 110: Casing
120: Main printed circuit board 121: Base board
122: 1st circuit area 123: 2nd circuit area
124: 3rd circuit area 125: 1st circuit pattern
126: 2nd circuit pattern 127: 3rd circuit pattern
128: Exposure hole 130: Sub-printed circuit board
140: Jumping bus bar 142: Inverse bar
144: Outbus bar

Claims (5)

A main printed circuit board; and a jumping bus bar electrically connecting circuit areas spaced apart within the main printed circuit board,
The above main printed circuit board is electrically connected to a sub-printed circuit board that is positioned opposite to it.
The above main printed circuit board includes a first circuit area that receives power from the outside and has a first circuit pattern patterned on it; a second circuit area that is spaced apart from the first circuit area and controls voltage and current according to set capacity by receiving power and then transmits and guides it to the outside and has a second circuit pattern patterned on it; and a third circuit area that is spaced apart from the first circuit area and the second circuit area and receives power from the first circuit area or the second circuit area and supplies it to mounted electronic components and has a third circuit pattern patterned on it.
The above second circuit area receives power from the above first circuit area or the above third circuit area,
The above jumping bus bar forms an edge bend portion in which both edges are bent downward along the axial direction so that the setting portion is spaced apart from the main printed circuit board by a setting distance, thereby preventing heat and electromagnetic waves generated from the jumping bus bar from being transmitted to electronic components mounted on the main printed circuit board.
The above main printed circuit board receives power and signals from the power supply, processes them internally, and distributes the power and signals to the vehicle's electrical components. The sub-printed circuit board is electrically connected to the main printed circuit board and serves to expand the space for distributing power and signals to a plurality of the electrical components.
The above jumping bus bar includes an inverse bar that jumps and connects the first circuit pattern and the second circuit pattern; and an outverse bar that jumps and connects the first circuit pattern and the third circuit pattern, or the second circuit pattern and the third circuit pattern.
A junction block for high-current power distribution characterized in that the jumping bus bar is exposed on the upper side of the main printed circuit board opposite to the lower side facing the sub printed circuit board, thereby increasing the heat dissipation performance of the main printed circuit board and guiding the flow of high current.
delete delete delete In paragraph 1,
The above main printed circuit board has an exposure hole formed to expose a portion of the first circuit pattern, the second circuit pattern, and the third circuit pattern while being embedded and patterned.
The above inverse bar is mounted on the first circuit pattern and the second circuit pattern through the corresponding exposed hole,
A junction block for high-current power distribution, characterized in that the above-mentioned outbus bar is mounted on the first circuit pattern and the third circuit pattern, or the second circuit pattern and the third circuit pattern, through the corresponding exposed hole.

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