KR101879824B1 - Block for vehicle - Google Patents

Abstract

The present invention relates to a vehicle block. In the block of the present invention, the first case 10 and the second case 30 are joined to each other to form an appearance. An insulating plate (40) is installed in an inner space formed by the first case (10) and the second case (30). Bus bars (60) are seated on the upper surface of the first case (10) and the insulating plate (40), respectively. A mounting portion 14 is formed at a position of a vertex of a triangle surrounding the edge of the first case 10. One of the bus bars 60 is formed on one side of the bus bar 60 so as to face the side wall 11 of the first case 10. Some of the bus bars 60 are connected to two or more loads at the same time. According to such a configuration, the automobile block of the present invention can be made thin and light.

Description

Block for vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle block, and more particularly, to a vehicle block for controlling power supply between a power supply and an electric component.

In an electric vehicle, a high voltage is used for driving a motor that provides a driving force of an automobile. Therefore, various automobile blocks for controlling the high voltage supplied from the battery or the generator and transferred to the electric equipments are required. In this way, low voltage is used for controlling the components in automobile blocks used at high voltage. Therefore, in automobile blocks, high voltage and low voltage are generally passed together.

On the other hand, the weight of an automobile is related to fuel consumption, and in the case of an electric vehicle, weight reduction is also required in order to relatively reduce the capacity of the battery. In order to reduce the weight of the automobile, it is necessary to reduce the thickness of the automobile block.

Korean Patent No. 10-1375956

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems of the prior art, and to provide a lightweight and compact automobile block.

According to an aspect of the present invention for achieving the above object, the present invention provides a vehicle including a first case having a side wall surrounding an edge and a mounting portion for mounting the block on a fixed portion of the vehicle, A second case having a space formed therein and having a component mounting portion formed on an upper surface thereof; an insulating plate positioned in an inner space formed by the first case and the second case; And a bus bar electrically connecting the component mounted on the component mounting portion to the component mounting portion, wherein the mounting portion is provided so as not to protrude from the outer surface of the first case, The mounting portion is formed so as not to protrude to the side surface.

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Wherein a plurality of the bus bars are located adjacent to the side wall of the first case among the bus bars so that bent portions bent at one side of the bus bar are positioned to face the side walls, And the bus bar seating recessed portion formed on the side surface of the bus bar.

The bottom of the second case has a plurality of insulating plate pressing bars for pressing the insulating plate on the first case, and a plurality of bus bar holding pins for pressing the bus bars.

The power input terminal and the power output terminal, the first and second load input terminals, and the first and second load output terminals formed along the edge of the first case are shielded by separate covers.

A fuse is located between the first load input and the second load input and the fuse is simultaneously shielded by the load input stage cover at the same time as the first load input and the second load input.

At least one of the bus bars is connected to different loads at the same time and is commonly used.

In the bus bar used for common use, the end connected to the load has a separate structure for connecting the load side separately.

A bent portion is formed at one side of the bus bar and is opposed to the inner surface of the side wall of the first case.

The bending portion is located at a bus bar fitting recess formed on a side surface of the insulating plate facing the inner surface of the side wall of the first case.

In the automobile block according to the present invention, the following effects can be obtained.

In the present invention, the mounting portion for mounting the block on the fixed portion of the vehicle is not projected to the side of the block. That is, there is no protruding configuration on the side surface of the block. Accordingly, the size of the automobile block is relatively small, the space required for mounting the automobile is minimized, and there is no space to be wasted around the automobile block.

In the present invention, a bus bar for electrically connecting parts is arranged in two layers with respect to an insulating plate, while a part of the bus bar is positioned in a region between the insulating plate and the side wall of the first case, It is possible to reduce the size of one case and thereby miniaturize the whole automobile block.

In the block of the present invention, a bus bar for electrical connection between two loads and components mounted on the block is shared. Accordingly, it is possible to reduce the number of bus bars used, thereby reducing the area of the first case in which the bus bars are seated.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a configuration of a preferred embodiment of an automobile block according to the present invention; Fig.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a cross-sectional perspective view showing essential parts of an embodiment of the present invention.
4 is a perspective view showing a load output bus bar constituting an embodiment of the present invention.
5 is a perspective view showing bus bars seated in a first case in an embodiment of the present invention;
6 is a perspective view showing that bus bars are seated on a first case and an insulating plate in the embodiment of the present invention;
7 is a use state showing a state in which parts are mounted on a component mounting portion in the embodiment of the present invention.

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 embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment 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 or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

As shown in the drawings, the automobile block according to the embodiment of the present invention is formed by combining the first case 10 and the second case 30 to form an appearance. The first case 10 is made of an insulating synthetic resin and has a substantially rectangular plate shape. And a side wall 11 surrounding the edge of the first case 10 is formed. The side wall 11 is formed on a part of the first case 10, not on the entire edge. On the side wall (11), fastening tabs (12) are formed. The fastening jaws 12 should be formed at least on the side wall 11 along the side opposite to each other. 2, a fastening jaw 12 is formed outside the side wall 11 in order to facilitate replacement of the fuse 74. The fuse 74 is shielded by a load input end cover 54, That is why.

A mounting portion 14 is formed at a plurality of places around the edge of the first case 10. The mounting portion 14 is for mounting the block to the fixed portion of the vehicle. For this purpose, a mounting hole 15 is formed in the mounting portion 14. The mounting hole 15 is a portion through which the bolt in the fixing portion passes or through which the bolt fastened to the nut in the fixing portion passes. In this embodiment, the mounting portion 14 is formed at both ends of the short side of the edge of the first case 10 and halfway between the opposite ends thereof. These three mounting portions 14 constitute the apexes of the triangle.

When the outer surface of the first case 10 is viewed, the mounting portion 14 does not protrude from the periphery. Since the mounting portion 14 is formed so as not to protrude from the outer surface of the first case 10, the area occupied by the first case 10 when the first case 10 is fixed to the fixed portion of the vehicle is reduced, Can be minimized.

On the surface of the first case (10), there are a plurality of end insulating fences (16). The end insulating fence 16 is formed in a 'C' shape in plan view and is connected to the leads of the parts 50 through the connection terminal 70 by positioning the ends of the bus bars 60, Section.

At the edge of the first case 10, there are a plurality of blocking fences 16 '. The blocking fences 16 'serve to prevent rotation of the components at the time of fastening using insulation or tools between the adjacent components.

A power input terminal 18 and a power output terminal 18 'are juxtaposed at one side edge of the first case 10. At the power input terminal 18 and the power output terminal 18 ', electrical connection is established between a component inside the block and a power source such as a battery. A first load input terminal (20) and a second load input terminal (22) are provided on the other side edge of the first case (10). The first load input terminal 20 and the second load input terminal 22 are portions for electrically connecting the load side and the block, respectively. For example, the first load may be a slow charge module, and the second load may be an inverter. A first load output terminal 20 'and a second load output terminal 22' are provided on the opposite sides of the edge where the power input terminal 18 and the power output terminal 18 'are located.

On the upper surface of the first case 10, a bus bar bank 24 is formed. The bus bar bank 24 serves to guide and support both widthwise ends of the bus bars 60, which will be described below. There are guide protrusions 26 in the inner region defined by the bus bar bank 24. The guide protrusion 26 is seated on a guide hole (not shown) formed in the bus bars 60 to guide the installation position of the bus bar 60.

A second case (30) is coupled to the first case (10) so as to cover the upper surface of the first case (10). A predetermined space is formed between the first case (10) and the second case (30). The side wall 31 of the second case 30 extends toward the first case 10. The side wall 31 is not formed over the entire edge of the second case 30. [ There are a plurality of fastening pieces 32 along the edge of the second case 30. The fastening piece 32 can be slightly elastically deformed, and a fastening hole 33 is provided at the center. The fastening catch hole 33 is a perforated hole in this embodiment, but it is not necessarily required. For example, a groove shape. The fastening tabs (12) of the first case (10) are seated on the fastening catch holes (33).

A plurality of component mounting portions 34 are formed on the outer surface of the second case 30. A component 50 such as a relay is mounted on the component mounting portion 34, for example. On the other side of the outer surface of the second case 30, there is a connector engaging portion 34 '. The component mounting portion 34 and the connector engaging portion 34 'are partitioned from the periphery by the compartment fence 35. Inside the component mounting portion 34 is a lead slit 36 through which the lead of the component 50 passes. A lead penetrating through the lead slit 36 is electrically connected to the bus bars 60 to be described below. Reference numeral 38 denotes a cover rotation shaft.

As shown in FIG. 3, a plurality of insulating plate pushing bars 39 are provided on the bottom surface of the second case 30. The insulating plate pressing bar 39 pushes the upper surface of the insulating plate 40 to be described below so that the insulating plate 40 is brought into close contact with the upper surface of the first case 10. A plurality of bus bar pushing pins 39 'are also provided on the bottom surface of the second case 30. A plurality of bus bar push pins 39 'serve to press and fix a part of the bus bars 60 described below.

An insulating plate (40) is placed in a space formed between the first case (10) and the second case (30). The insulating plate 40 is made of an insulating material such as the first case 10 or the second case 30. The insulation plate 40 is intended to secure an insulation distance between the bus bars 60 and other components to be described below.

The insulation plate 40 has a plurality of end fins 42. The end insulating fence 42 functions as the end insulating fence 16 in the first case 10. The end portion of the bus bar 60 is located in the end fence 42 and defines a space in which the electrical connection with the lead of the part 50 is made.

A bus bar bank 44 is also provided on the upper surface of the insulating plate 40. The bus bar bank 44 functions as a bus bar bank 24 in the first case 10. A guide protrusion 45 is provided in the area partitioned by the bus bar bank 44. The guide protrusion 45 also functions as the guide protrusion 26 of the first case 10.

The insulating plate (40) has an insulating partition cylinder (46). The insulating fence (16) formed in the first case (10) is located inside the insulating partition tube (46). A through hole 47 is formed in the insulating partition tube 46 for this purpose.

On the other hand, a bus bar fitting recessed portion 48 is formed at one side edge of the insulating plate 40. In the bus bar receiving recessed portion 48, the bent portion 68 of the load output bus bar 66 among the bus bars 60 to be described below is located. The bus bar receiving recessed portion 48 is recessed in the side surface of the insulating plate 40.

For reference, a plurality of pressing ribs (not shown) are formed on the bottom surface of the insulating plate 40. The pressing ribs serve to press the bus bars 60 below the insulating plate 40.

The component 50 is mounted on the component mounting portions 34 of the second case 30. An example of these components 50 is a relay. A power end cover 52, a load input end cover 54, and a load output end cover 56 are rotatably mounted on the cover rotation shaft 38 formed on the upper surface of the second case 30, respectively. The power terminal cover 52 simultaneously shields the power input terminal 18 and the power output terminal 18 '. The load input stage cover 54 simultaneously shields the first load input 20, the fuse 74, and the second load input 22 described below. The load output stage cover 56 shields the first load output terminal 20 'and the second load output terminal 22'.

A plurality of bus bars (60) are seated on the upper surface of the first case (10) and the upper surface of the insulating plate (40). These bus bars 60 will be described one by one. The power input bus bar 61 is connected at one end to the current sensor 72 to be described below which is connected to the power input terminal 18 and at the other end to the upper end of the part 50 of the part 50. One end of the power output bus bar 62 is connected to the external power source and the other end is connected to the component 50 to which the power input bus bar 60 is connected.

Next, the load input bus bar 64 is connected at one end to an external load and at the other end to the other two of the parts 50 at the same time. The load input bus bar 64 is formed with a second load hole 65 'for connection with the second load side and a fuse connection hole 65 for connection with the fuse side. A bolt-shaped fastener is passed through these.

The load output bus bar 66 connects the circuits between the remaining two components 50 and the loads. A first load hole 67 and a second load hole 67 'are formed in the load output bus bar 66 at the same time. The load output bus bar 66 and the load input bus bar 64 simultaneously connect two loads. As described above, since the load output bus bar 66 and the load input bus bar 64 are used for two loads, respectively, the number of bus bars can be reduced. On one side of the load output bus bar 66 is a bent portion 68 formed to face the inner surface of the side wall 11 of the first case 10. By forming the bent portion 68 as described above, the area of the first case 10 can be reduced.

The power input bus bar 61, the power output bus bar 62, the load input bus bar 640 and the load output bus bar 66 are all located on the upper surface of the first case 10. The control signal bus bar The control signal bus bar 69 is provided at one end of the connector connector 34 'and the other end of the control signal bus bar 69 is connected to the parts 50. [ Three of which are located on the insulating plate 40 and three of which are located on the first case 10. The control signal bus bar 69 provides control signals for the components 50 , A relatively low voltage is used.

On the other hand, connection terminals 70 are provided on the end portions of the bus bar 60 located in the end insulating fences 16 and 42, respectively. This is because the leads of the component 50 are tab-shaped, and the ends of the bus bars 60 are also tab-shaped.

A current sensor 72 is provided between the power input terminal 18 and the power input bus bar 61 to measure a current intensity. A fuse 74 is provided between the first load input 20 and the second load input 22 to connect an external load and the load input bus bar 64. The fuse 74 serves to cut off power connection when an overload is applied.

Hereinafter, the assembling and use of the automobile block according to the present invention will be described in detail.

The first case 10, the second case 30 and the insulating plate 40 are made by injection molding. A power input bus bar 61, a power output bus bar 62, a load input bus bar 64 and a load output bus bar 66 are seated on the first case 10. Three control signal bus bars 69 are also seated in the first case 20. The bent portion 68 of the load output bus bar 66 is positioned to face the inner surface of the side wall 11 of the first case 10.

Next, the fuse 74 and the current sensor 72 are installed on the first case 10. After the fuse 74 and the current sensor 72 are installed, the insulating plate 40 is seated on the first case 10. When the insulating plate 40 is installed, the bent portion 68 of the load output bus bar 66 is positioned in the bus bar fitting recessed portion 48.

And the remaining three of the control signal bus bars 69 are seated on the insulating plate 40. One end of the control signal bus bar 69 is located at the connector fitting 34 'and the other end is connected to the leads of the parts 50, which will be described below.

After the second case 30 is coupled to the first case 10, the power end cover 52, the load end cover 54, and the load output end cover 56 are respectively mounted. In this manner, assembly of the automobile block is completed.

In the assembled automobile block, the mounting hole (15) of the mounting portion (14) is fixed to the fixed portion of the vehicle through the fastener. The power terminal cover 52 is opened and a terminal at the end of the power line is connected to the power input terminal 18 and the power output terminal 18 'respectively. After the terminal is connected, the power end cover 52 shields the corresponding portion.

Next, the load input stage cover 54 and the load output stage cover 56 are opened to perform electrical connection with the loads. After the connection between the load input end side and the load and between the load output end side and the load, the load input end cover 54 is closed to shield the corresponding portion.

Parts 50 are inserted into the component mounting portion 34, and a mating connector is coupled to the connector mating portion 34 '.

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 not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: first case 11: side wall
12: fastening chin 14:
15: mounting hole 16: end insulated fence
16 ': Blocking fence 18: Power input
18 ': Power output stage 20: First load input stage
20 ': first load output stage 22: second load input stage
22 ': second load output stage 24: bus bar bank
26: guide projection 30: second case
31; Side wall 32:
33: fastening hook 34: part mounting part
34 ': Connector coupling part 35: Compartment fence
36: lead slit 38: cover rotating shaft
39: Insulation plate push bar 39 ': Bus bar push pin
40: insulating plate 42: end insulating fence
44: bus bar bank 45: guide projection
46: Insulation compartment trough 47: Through hole
50: Part 52: Power stage cover
54: Load input terminal cover 56: Load output terminal cover
60: bus bar 61: power input bus bar
62: Power output bus bar 64: Load input bus bar
65: Fuse connecting ball 65 ': Second load ball
67: first load ball 67 ': second load ball
69: control signal bus bar 70: connection terminal
72: current sensor 74: fuse

Claims (10)

A first case having a side wall surrounding the edge and having a mounting portion for mounting the block on the fixed portion of the vehicle,
A second case coupled to the first case and having a space formed therein and having a component mounting portion formed on an upper surface thereof,
An insulating plate positioned in an inner space formed by the first case and the second case;
And a bus bar which is located on the first case and the insulating plate and electrically connects the exterior to the component mounted on the component mounting portion,
The mounting portion is provided so as not to protrude from the outer surface of the first case,
Wherein a mounting portion is formed at an edge of the first case so as not to protrude from an outer surface of the first case.
delete [2] The apparatus according to claim 1, wherein a plurality of the bus bars are provided, and a bending portion, in which one side of the bus bar is bent, is positioned opposite the side wall of the first case among the bus bars, And a bus bar seating recess formed on a side wall of the case and a side surface of the insulating plate.
The automobile block according to claim 3, wherein a plurality of insulating plate pushing bars are provided on the bottom surface of the second case so as to press the insulating plate on the first case, and a plurality of bus bar holding pins for pressing the bus bars.
The automobile block according to claim 4, wherein the power input terminal and the power output terminal, the first and second load input terminals, and the first and second load output terminals formed along the edge of the first case are shielded by separate covers.
6. The automobile block of claim 5, wherein a fuse is located between the first load input and the second load input and the fuse is simultaneously shielded by a load input stage cover with a first load input and a second load input.
The automobile block according to claim 1, wherein the plurality of bus bars are used, and at least one of the bus bars is commonly used by being connected to different loads.
The automobile block according to claim 7, wherein the end portion connected to the load in the commonly used bus bar has a separate structure for fastening so as to be separately connected to the load side.
9. The automobile block according to any one of claims 1 to 8, wherein a bent portion is formed on one side of the bus bar so as to face an inner side surface of the side wall of the first case.
The automobile block according to claim 9, wherein the bent portion is located at a bus bar seat fitting portion formed on the side of the insulating plate facing the inner side surface of the side wall of the first case.

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