KR101980110B1 - Electric connection device for vehicle - Google Patents

Abstract

The present invention relates to a vehicular power supply unit comprising a fuse holder of an insulating material surrounding an energizable shorting member, a fuse including a bridge extending from the shorting member to be exposed to both sides of the fuse holder, a bridge extending to one side of the shorting member, A second bus bar made of a metal and electrically connected to a bridge extending to the other side of the shorting member, and a bridge corresponding to the first bus bar, a bridge corresponding to the second bus bar, And a molding part which is formed so as to be directly connected.
The present invention can reduce the weight and cost by eliminating the bolting process by connecting the bus bar and the fuse by compression molding without having separate fastening means unlike the prior art, have.

Description

[0001] ELECTRIC CONNECTION DEVICE FOR VEHICLE [0002]

The present invention relates to a vehicle power unit, and more particularly, to a vehicle power unit capable of connecting a bus bar and a fuse by compression molding without requiring additional fastening means, thereby reducing weight and cost, Which can reduce the number of energizing operations of the vehicle.

2. Description of the Related Art [0002] Generally, electronic products using electricity as a power source are equipped with many electric devices and perform a predetermined function by a power source supplied from the outside. However, if an overcurrent due to an external factor such as a voltage fluctuation or a short circuit of an electrical component is introduced in the process of applying the power as described above, it may cause a catastrophic damage to the electrical device and cause a breakdown. In addition, many.

Accordingly, it is general to provide a fuse in a path to which power is supplied from the outside, and to prevent the electrical component from being damaged by the overcurrent by making the fuse open when the overcurrent is introduced.

The connection structure of the conventional high voltage fuse includes a first fuse holder one end of which is bolted to a bus bar and the other end of which is fixed by being seated on one side of the high voltage fuse and the other end of the high voltage fuse is seated and fixed And a second fuse holder.

As a prior art, a technique has been proposed in which a fuse and a bus bar are bolted to a " power connection box ", Korean Patent Publication No. 10-2011-0078990 (published on December 31, 2009).

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.

The connection structure of the conventional high-voltage fuse has a problem in that the weight and the cost are increased according to the use of the bolt, and the workability is lowered because the bolt is tightened every time.

Therefore, there is a need to improve this.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the problems as described above, and it is an object of the present invention to provide a bus bar and a fuse which can be connected by compression molding without having separate fastening means, It is an object of the present invention to provide a vehicular power supply unit for reducing the number of power supply operations of a fuse.

A vehicular powering unit according to the present invention includes: a fuse including an insulated fuse holder surrounding an energizable shorting member; and a bridge extending from the shorting member to be exposed on both sides of the fuse holder; A first bus bar made of metal and electrically connected to the bridge extending to one side of the shorting member; A second bus bar made of metal and electrically connected to the bridge extending to the other side of the shorting member; And a forming unit configured to directly connect the bridge corresponding to the first bus bar and the bridge corresponding to the second bus bar.

Wherein the forming unit is configured to connect the bridge, which is thinner than the first bus bar and the second bus bar and is made of a flexible material, to the first bus bar and the second bus bar through a punch pressure input acting in the direction of the first bus bar and the second bus bar, 2 bus bar.

Wherein the forming portion includes: a deforming projection portion in which the bridge is deformed convexly in the direction of the first bus bar and the second bus bar partially corresponding to an external force; And a deformation groove portion that allows the first bus bar and the second bus bar corresponding to each other by the deforming protrusion to be depressed and to allow the deformation protrusion to be pressed into each other.

The bridge corresponding to the first bus bar and the bridge corresponding to the second bus bar may be formed by the jig in a state of being overlapped.

The jig includes a lower jig supporting an energizing unit in which a bridge corresponding to the first bus bar and the second bus bar is stacked on an end portion forming the depressed trench, An upper jig disposed corresponding to the lower jig and provided to be linearly reciprocable; And an insulator protruding from the upper jig so as to correspond to the depressed depressed portion, the depressed portion being inserted into the depressed depressed portion by pressing the bridge toward the corresponding first bus bar or the second bus bar, thereby forming an undercut in the energized unit And a press protrusion for press-fitting the fuse to the first bus bar and the second bus bar at the undercut portion.

Each of the bridges may form a guide line for positioning the edge of the recessed depressed portion.

As described above, the vehicle electric power unit according to the present invention can be connected to the bus bar and the fuse by compression molding without having separate fastening means different from the prior art, so that the weight and the cost can be reduced, By eliminating the process, it is possible to reduce the number of operations for energizing the bus bar and the fuse.

1 is a perspective view of a vehicular powering unit according to an embodiment of the present invention.
2 is a bottom perspective view of a vehicular power supply unit according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a main part of a vehicular energizing unit according to an embodiment of the present invention.
FIG. 4 is a view illustrating a state in which a vehicle electric power unit is manufactured through a jig according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a vehicle electrification unit according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view of a vehicular power supply unit according to an embodiment of the present invention, and FIG. 2 is a bottom perspective view of a vehicular power supply unit according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a main part of a vehicular power supply unit according to an embodiment of the present invention, and FIG. 4 is a state view illustrating manufacturing of a vehicular power supply unit through a jig according to an embodiment of the present invention.

1 to 4, a vehicular powering unit 100 according to an embodiment of the present invention includes a fuse 110, bus bars 122 and 124, and a molding unit 130.

The fuse 110 interrupts energization, permits the flow of the amount of current within the setting, and serves to interrupt energization when an overcurrent flow occurs.

To this end, the fuse 110 includes a shorting member 112, a fuse holder 114, a first bridge 116 and a second bridge 118.

The shorting member 112 is made of a conductive material and is short-circuited in order to cut off the flow when the flow exceeds the allowable current amount. Of course, the shorting member 112 can be deformed into various shapes.

The fuse holder 114 is made of an insulating material that encloses the shorting member 112. Of course, the fuse holder 114 can be applied in various shapes.

The first bridge 116 extends to one side of the shorting member 112, is exposed to the outside of the fuse holder 114, and has electrical conductivity. The second bridge 118 extends to the other side of the shorting member 112, is exposed to the outside of the fuse holder 114, and has electrical conductivity.

Of course, the first bridge 116 and the second bridge 118 may be formed in various shapes.

 The first bus bar 122 is connected to the first bridge 116, and is made of a metal material, and is energizable, and is connected to a power source or an electrical component of the vehicle.

The second bus bar 124 is connected to the second bridge 118, is made of a metal material and is energizable, and is connected to an electric component or a power source of the vehicle.

Of course, the first bus bar 122 and the second bus bar 124 can be applied in various shapes.

In particular, the fuse 110 serves to electrically connect the first bus bar 122 and the second bus bar 124. When an overcurrent flows from the first bus bar 122 to the second bus bar 124 or an overcurrent flows from the second bus bar 124 to the first bus bar 122, And to prevent this.

Accordingly, the fuse 110 is disposed between the first bus bar 122 and the second bus bar 124.

The forming unit 130 is formed so that the first bus bar 122 and the first bridge 116 and the second bus bar 124 and the second bridge 118 are directly connected to each other.

In detail, the forming unit 130 covers the first bridge 116 and the first bus bar 122, and then, through the punch pressure input acting on the first bridge 116 in the direction of the first bus bar 122, 1 bus bar 122 by press-molding.

Similarly, the forming unit 130 covers the second bridge 118 and the second bus bar 124, and then, through the punch pressure input acting on the second bridge 118 in the direction of the second bus bar 124, 2 bus bar 124 by press-molding. As a result, the first bus bar 122 and the first bridge 116 are coupled to each other, and the second bus bar 124 and the second bridge 118 are coupled to each other.

At this time, the first bridge 116 and the second bridge 118 are made of a flexible material that is thinner than the first bus bar 122 and the second bus bar 124.

The first bridge 116 is partly inserted into the surface texture of the first bus bar 122 by external punching and the second bridge 118 is partially inserted into the surface of the second bus bar 124 The first bridge 116 and the first bus bar 122 are tightly coupled and the second bridge 118 and the second bus bar 124 are tightly coupled.

More specifically, the forming portion 130 includes the deforming protrusion 132 and the deforming groove portion 134.

A part of the first bridge 116 is deformed convexly toward the first bus bar 122 by the external punch press-fitting. Likewise, the deforming protrusion 132 is formed in such a manner that a part of the second bridge 118 is convexly deformed in the direction of the second bus bar 124. Of course, the deformed protrusions 132 are formed at an irregular shape, and the number is not limited to this.

The deformed groove 134 is formed by deforming the first bus bar 122 and the second bus bar 124 by the deforming protrusion 132 so as to press the deformed protrusion 132 As they are allowed, they act to induce mutual coupling.

Meanwhile, the first bus bar 122 and the first bridge 116, the second bus bar 124, and the second bridge 118 are formed by forming the forming part 130 with the jig 200 can do.

Here, the jig 200 includes a lower jig 210, an upper jig 220, and a press protrusion 230.

The lower jig 210 is recessed at one side of the depressed trench 212.

The first bus bar 122 and the first bridge 116 constituting the electrification unit 100 and the second bus bar 124 and the second bridge 118 overlap with each other in the recessed trench 212, And is held in contact with an end of the lower jig 210 corresponding to the lower jig 210.

The first bridge 116 and the second bridge 118 are relatively soft and the first bus bar 122 and the second bus bar 124 are held in contact with the lower jig 210 do.

The upper jig 220 is disposed to correspond to the lower jig 210, and is provided so as to be linearly reciprocally movable. At this time, the upper jig 220 is arranged to face the recessed trench 212. The upper jig 220 can be reciprocated in the axial direction by various configurations.

The press protrusion 230 protrudes from the upper jig 220 toward the depressed trench 212. Therefore, when the upper jig 220 moves in the direction of the lower jig 210, the press protrusion 230 is inserted into the depressed trench 212.

The press protrusion 230 presses the first bridge 116 in the direction of the first bus bar 122 and inserts the first bridge 116 into the recessed trench 212. Similarly, the press protrusion 230 presses the overlapped second bridge 118 in the direction of the second bus bar 124 and inserts it into the recessed trench 212.

The first bridge 116 and the first bus bar 122 of the electrification unit 100 and the second bridge 118 and the second bus bar 124 form an undercut 150 protruding from the surface . In addition, the first bridge 116 and the first bus bar 122, and the second bridge 118 and the second bus bar 124 are formed during the process of forming the undercut 150 by the press protrusion 230 As shown in Fig.

Of course, the recessed trench 212 and the press protrusion 230 can be deformed into various shapes.

In particular, the first bridge 116 and the second bridge 118 may form a guide line 140 for positioning the edge of the recessed trench 212.

That is, the guide line 140 serves to set the position of the first bridge 116 to be formed by the press protrusion 230 and to set the forming position of the second bridge 118.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

100: energizing unit 110: fuse
112: shorting member 114: fuse holder
116: first bridge 118: second bridge
122: first bus bar 124: second bus bar
130: forming part 132:
134: deformation groove portion 200:
210: lower jig 220: upper jig
230: Press projection

Claims (2)

A fuse holder having an insulated fuse holder surrounding an energized shorting member; a fuse having a first bridge extending from one side of the shorting member and a second bridge extending from the other side of the shorting member so as to be exposed to both sides of the fuse holder; A first bus bar made of a metal and electrically connected to the first bridge; A second bus bar made of a metal and electrically connected to the second bridge; And a molding part for molding the first bus bar and the first bridge, the second bus bar and the second bridge so as to directly connect them,
The first bus bar and the first bridge, the second bus bar, and the second bridge overlap each other to form the molded part by the jig,
Wherein the jig includes: a lower jig that abuts on the upper side of the depressed trench, the first bus bar having the first bridge stacked thereon, and the second bus bar having the second bridge stacked thereon; An upper jig disposed corresponding to the lower jig and provided to be linearly reciprocable; And a press projection projecting from the upper jig so as to correspond to the depressed trench and pressing the first bridge, the first bus bar, the second bridge, and the second bus bar and inserting the first bridge into the recessed groove portion and,
Wherein one end of the fuse holder is held in contact with the first bus bar and the other end of the fuse holder is held in contact with the second bus bar,
Wherein the forming part includes: a deformed projection part formed by deforming the first bridge convexly toward the first bus bar by pressing of the press projection and deforming the second bridge convexly toward the second bus bar; And a deformation groove portion that allows the first bus bar and the second bus bar corresponding to each other by the deformed protrusions to be depressed and to allow the deformed protrusions to be press-
Wherein the first bus bar is press-formed into the depressed groove portion through tissue deformation by a punch pressure input of the press projection in a state of covering the first bridge and the first bus bar, Molded,
The second bus bar is press-formed into the recessed groove portion through tissue deformation by the punch pressure input of the press projection in a state of covering the second bridge and the second bus bar, and the second bridge successively presses The first bus bar press-fitting the first bridge, and the second bus bar push-fitting the second bridge at the undercut portion,
Wherein the forming unit is configured to connect the first bridge and the second bridge, which are thinner than the first bus bar and the second bus bar, and the second bridge, which is a soft material, to the first bus bar and the second bus bar, And the first bus bar and the second bus bar are press-molded into the first bus bar and the second bus bar.
The method according to claim 1,
Wherein each of the first bridge and the second bridge forms a guide line for positioning with respect to an edge of the recessed groove portion.

Images