KR20170079582A

KR20170079582A - Power distributing apparatus and assembling method

Info

Publication number: KR20170079582A
Application number: KR1020150190320A
Authority: KR
Inventors: 오훈희
Original assignee: 한국단자공업 주식회사
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-07-10

Abstract

The present invention relates to a power distribution device. The housing 10 is formed with a skeleton of the power distributing apparatus of the present invention in which the first slot 11 and the second slot 12 are isolated from each other and opened in the other direction. A first flexible bus bar 60 is inserted into the first slot 11 and a second flexible bus bar 62 is inserted into the second slot 12. A shield case 47 is provided so that at least a part of the housing 10 is inserted into the inner space and the input connector shield 50 and the first output connector shield 52 are integrally formed with the shield case 47 And the input connector shielding portion 50 is provided with an input connector 35 to supply power from the power source side. A first output connector (40) is provided in the first output connector shield (52) to supply power to the load side. The supporting end 34 is provided at the tip of the contact portion 33 at both ends of the interlock connection terminal 30 connected to and separated from the interlock units 39 and 45 for safety during maintenance, So as to be in closer contact with the lock unit (39, 45) side. According to the present invention, the assembly work can be simplified by the first and second flexible bus bars 60 and 62 and the operation characteristics of the interlock connection terminal 30 can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power distributing apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power distributing apparatus and a method of assembling the same, and more particularly, to a power distributing apparatus and a method of assembling the power distributing apparatus.

In a vehicle, a power distributing device is used as one unit. Recently, as electric vehicles and hybrid vehicles are commercialized, power distribution devices that distribute high voltage are widely used.

In power distribution devices that distribute high voltages, the bus bar for circuit configuration must be correctly installed in the housing. In general, however, the bus bar is insert molded while the housing is injection-molded so that the housing and the bus bar are integrally formed. If the number of bus bars is increased in order to insert and inject the bus bar into the housing, the mold becomes complicated.

If the number of bus bars is minimized, the length of the bus bar becomes longer, and the bus bar is bent due to the injection pressure. Such a problem causes the circuit configuration to be inadequate, and also causes a problem of coupling with a connector connected to the power distributing device.

Also, in a power distribution device used at a high voltage, safety during maintenance work is very important. This is due to the operator's electric shock due to high voltage. For this purpose, it is necessary to interrupt the power supply at the moment of opening the cover of the power distribution apparatus for maintenance work, and the interlock connection terminal is used for this purpose. However, since the separate terminal called the interlock connection terminal is on the circuit for power supply control in this way, the power connection characteristic may be deteriorated.

Korean Patent Publication No. 10-2011-0078990

SUMMARY OF THE INVENTION An object of the present invention is to provide a power distribution device for a high voltage that can accurately mount a bus bar in a housing.

Another object of the present invention is to improve the connection characteristic of a circuit for power supply control in a power distribution device used at a high voltage.

According to an aspect of the present invention, there is provided a mobile communication terminal comprising: a housing having a first slot opened to one side and a second slot isolated from the first slot, A first flexible bus bar which is installed in a first slot and which constitutes a circuit and is formed by laminating a plurality of metal plates, a second flexible bus bar which is installed in the second slot and is formed by stacking a plurality of metal plates, And at least a portion of the housing is located in the interior space and the input connector shield and the first output connector shield are formed and made of metal.

And an input connector provided on the input connector shield to supply power and a first output connector provided on the first output connector shield and connected to the load side.

The input connector has a first input terminal and a second input terminal. The output connector forms an outer appearance of the output connector, and the terminal seating space formed therein has a first input terminal and a second input terminal. 1 output terminal and a second output terminal.

Wherein the first bus bar is electrically connected to the first input terminal and is connected to a terminal on the load side at one end in a second output coupling groove portion opened to one side of the housing, Terminal and the second output terminal, and is connected to the terminal on the load side by locating one end in another second output coupling groove portion opened to one side of the housing.

A case cover is additionally provided to shield the inner space of the shield case in which the housing is located, and an interlock connection terminal is provided on the case cover, and when the case cover is separated from the shield case, The contact with the interlock unit of the output connector is cut off.

The interlock connection terminal is installed at a connection terminal seating portion formed on a housing cover fixed to the case cover. A support end supported on one surface of the housing cover is formed at the tip of the contact portion provided at both ends of the connection terminal body, So that the central portion of the interlock unit is brought into close contact with the interlock unit.

According to another aspect of the present invention, there is provided a bus bar insertion step of adjusting and inserting a first flexible bus bar in conformity with a shape of a first slot formed in a housing, adjusting a second flexible bus bar in accordance with a shape of a second slot, And a connector for connecting the input connector and the first output connector to the shield case and connecting the first and second flexible bus bars to the connector housing and the first and second flexible bus bars, And a case cover attaching step of attaching a case cover having a housing cover provided with an interlock connection terminal at an entrance of the shield case.

After the connector connecting step, the fuse is connected to the input connector and the first flexible bus bar at one side and the other side is connected to the first output connector side.

INDUSTRIAL APPLICABILITY In the power distributing apparatus and the assembling method thereof according to the present invention, the following effects can be obtained.

First, in the present invention, a flexible bus bar having a certain degree of flexibility is used as a bus bar installed in a first slot and a second slot of a housing made of an insulating material. In the case of a flexible bus bar, it is easy to insert the flexible bus bar into the first slot and the second slot, so that the assembly work can be smoothly performed.

Further, when the flexible bus bar is used, it is not necessary to use a press to perform the bending operation after the bending operation, and the bending operation using the press is not necessary at the time of manufacturing because the bending operation is not necessary. There is also an effect to be done.

According to the present invention, since the tip of the contact portion formed at both ends of the interlock connection terminal is supported by the protrusion, the center portion of the contact portion is firmly attached to each interlock unit side. Therefore, So that the operating characteristics of the power distributing device can be improved.

1 is a perspective view showing a configuration of a preferred embodiment of a power distribution device according to the present invention;
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a perspective view showing a housing constituting an embodiment of the present invention.
4 is a perspective view showing a configuration of an interlock connection terminal constituting an embodiment of the present invention;
5 is an exploded perspective view showing the interlock connection terminal inserted into the housing cover in the embodiment of the present invention.
FIG. 6 is a cross-sectional perspective view showing the interlock connection terminal provided on the housing cover in the embodiment of the present invention and its peripheral structure. FIG.
7 is a perspective view showing a configuration of a flexible bus bar used in the embodiment of the present invention.
FIG. 8 is an assembling process sequentially showing a process of assembling the power distributing device according to the embodiment of the present invention. FIG.

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 difference that the embodiments of the present invention are not conclusive.

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 housing 10 forms the framework of the power distribution device according to the present invention. The housing 10 is made of an insulating material, and is generally made by injection molding a synthetic resin. The housing 10 is of a substantially hexahedral shape, as shown in Figures 2 and 3, but need not necessarily.

A first slot 11 is opened to one side of the housing 10 and a second slot 12 is opened to the other side. A first flexible bus bar 60 to be described later is inserted and seated in the first slot 11 and a second flexible bus bar 62 to be described later is seated in the second slot 12. The first slot 12 and the second slot 14 are not in communication with each other in the housing 10. Thus, the insulation between the first flexible bus bar 60 and the second flexible bus bar 62 is ensured.

The input coupling groove 13 and 13 'are formed on the outer surface of the housing 10 in which the first slot 11 is formed. The input fastening groove portions 13 and 13 'are portions to which a fastening nut 64 to be described below is seated and a terminal and a bus bar are coupled by a terminal fastening member 66. The input coupling groove 13 is open to the upper portion of the housing 10 in the drawing. A tool through hole 14 is formed so that the input fastening groove 13 'can be seen from above the housing 10 in the drawing. The terminal fastening member 66 can be inserted into the input fastening groove 13 'through the tool through hole 14 and can be fastened or unscrewed with a tool.

A first output coupling groove 15 is formed in a side surface of the housing 10 on the side where the second slot 12 is opened. The first output coupling groove 15 is also open to the upper part of the figure of the housing 10. The first output coupling groove 15 'is opened on the outer surface of the housing 10 adjacent to the second slot 12 as shown in FIG. A terminal fastening hole 66 is inserted into the first output fastening and depressing groove portion 15 'through a tool through hole 16 opened to the upper portion of the housing 10 in the figure and is tightened and loosened by a tool.

A second output coupling groove 18 is formed in the outer surface of the housing 10 so as to be opened opposite to the side where the tool through holes 14 and 16 are formed. A fastening nut 64 is also inserted into the second output coupling groove 18 so that the flexible bus bar 60 and the external terminal are fastened by the terminal fastener 66.

A housing cover 20 is provided so as to cover an upper portion of the housing 10, that is, a side where the tool through holes 14 and 16 are opened. The housing cover 20 is formed with a space portion 22 therein, as shown in FIG. In the space 22, a fuse 68, which will be described later, is disposed in the housing 10. The housing cover 20 is made of an insulating material.

A projection 23 protrudes from one side of the housing cover 20. And a connection terminal seating portion 24 is formed to be opened to the side surface of the protrusion 23. The connection terminal seating portion 24 has a space in which the interlock connection terminal 30 to be described below is located. In the connection terminal seating portion 24, two protrusion bars 25 are arranged side by side. A fixing protrusion 26 protrudes from the inner surface of the connection terminal seating portion 24 between the protruding bars 25. A guide surface (not shown) is formed on the fixing protrusion 26 so as to be inclined toward the entrance of the connection terminal seating portion 24.

A connection slot 28 is formed adjacent to the protruding bar 25 and the connection terminal seating portion 24 is opened to face the outer surface of one side of the housing 10. The contact portion 33 of the interlock connection terminal 30, which will be described below, protrudes through the communication slot 28. [

The interlock connection terminal 30 is seated on the connection terminal seating portion 24. The interlock connection terminal 30 is well shown in FIG. 4. The connection terminal body 31 is formed of a leaf spring. A fixing groove 32 is formed at the center of the connection terminal body 31. The fixing protrusion 26 is positioned in the fixing groove 32 so that the interlock connection terminal 30 is fixed to the connection terminal seating portion 24. [

At both ends of the connection terminal body 31, a contact portion 33 is formed. The contact portion 33 is resilient and comes into electrical contact with the input interlock unit 39 and the output interlock unit 45, which will be described below. The contact portion 33 has a support end 34 at each end thereof. The support end (34) is seated on a surface adjacent to the communication slot (28) of the protrusion (23). The contact portion 33 is pushed in a direction away from the surface of the protrusion 23 and the contact with the counterpart can be reliably maintained by the contact of the support end 34 with the surface of the protrusion 23 have.

The housing cover 20 in which the interlock connection terminal 30 is installed is press-fitted into the case cover 56 to be described later and is integrally operated. That is, when the case cover 56 is fastened to and separated from the shelf case 47 to be described below, the housing cover 20 is moved together with the case cover 56.

An input connector 35 is provided on the side of the input coupling grooves 13, 13 'of the housing 10. The input connector 35 forms a skeleton of the input housing 37. The input housing 37 is made of an insulating synthetic resin. A plurality of terminal seating spaces 37 'are formed in the front and rear of the input housing 37. In this embodiment, three terminal seating spaces 37 'are formed. A first input terminal 38, a second input terminal 38 'and an input interlock unit 39 are provided in the terminal seating space 37'. The first input terminal 38 and the second input terminal 38 'are coupled to terminals of a connector connected to a power source.

The input interlock unit 39 is used to prevent a spark from occurring when the mating connector is coupled to and disconnected from the input connector 35. The input interlock unit 39 is disconnected faster than the input terminals 38 and 38 'are separated from the terminals of the mating connector and the input terminals 38 and 38' And then joined. The interlock unit 39 is coupled to and disconnected from the interlock unit of the mating connector, so that power is applied and removed to prevent the occurrence of sparks due to the high voltage.

A first output connector (40) is provided on the opposite side of the housing (10) on which the input connector (35) is mounted. The output housing (42) forms the skeleton of the first output connector (40). A plurality of terminal seating spaces 42 'are formed through the output housing 42 in the forward and backward directions. A first output terminal 43, a second output terminal 43 'and an output interlock unit 45 are provided in the terminal seating space 42'.

The shield case 47 is made of metal. Generally, the shelf case 47 is made through a die-casting operation. The shield case 47 serves to shield electromagnetic waves. The case body (48) forms a skeleton and an outer appearance of the shield case (47). An inner space 48 'is formed in the case body 48 so as to penetrate up and down. The upper half of the housing 10 is located in the inner space 48 '. A plurality of body fastening holes 48 '' are formed to be opened to the inner space 48 'of the case body 48. The body fastening holes 48' are formed with cover fastening holes 59, Respectively. A seal groove (not shown) is formed along the edge of the case body 48 corresponding to the inlet of the inner space 48 'to seat the first seal 54, which will be described below.

On the outer surface of the shield case 47, there are a plurality of mounting brackets 49. The mounting bracket 49 is formed with a fastening hole 49 'to mount the entire power distributing device on the fixed portion of the vehicle.

The case body 48 is formed with an input connector shield 50 and an output connector shield 52, respectively. The input connector shield 50 surrounds the outer surface of the input connector 45 and the output connector shield 52 surrounds the outer surface of the output connector 40.

A first seal 54 is formed to surround the upper side inlet edge of the inner space 48 'of the shield case 47 and functions as a watertight seal with the case cover 56 to be described below. A seal (not shown) is provided between the lower side inlet of the inner space 48 'of the shield case 47 and the outer surface of the housing 10 to provide a watertight function.

A case cover 56 is used to shield the inner space 48 'of the shield case 47 from the outside. The case cover 56 has a shape corresponding to the shape of the inlet of the inner space 48 'and is made of the same material. A fastening hole 58 is formed in the case cover 56 at a position corresponding to the body fastening hole 48. The fastening hole 58 passes through the cover fastening hole 59, The case cover 56 is attached to the shield case 47 by being fastened to the shield case 48 ".

Meanwhile, a first flexible bus bar 60 is installed in the first slot 11 of the housing 10. The first flexible bus bar 60 is formed by laminating a thin conductive metal plate having substantially the same shape. Therefore, the first flexible bus bar 60 has a somewhat flexible characteristic. Here, the plurality of metal plates constituting the first flexible bus bar 60 are not coupled to each other in all areas, but are only partially connected to each other. In this embodiment, the metal plates are welded only by ultrasonic welding at both ends. With such a configuration, the first flexible bus bar 60 can be flexibly bent to a certain extent except for the both ends.

One end of the first flexible bus bar 60 is electrically connected to the first input terminal 38 of the input connector 35. The first flexible bus bar 60 is also located in one of the second output coupling recesses 18 of the housing 10 and is electrically connected to the outside. The configuration of the first flexible bus bar 60 is well shown in Fig.

A second flexible bus bar (62) is provided in the second slot (12) of the housing (10). One end of the second flexible bus bar 62 is electrically connected to the second input terminal 38 'of the input connector 35 and the other end of the second flexible bus bar 62 is connected to the second output terminal 43' ). The other end of the second flexible bus bar 62 is installed in the other of the second output coupling recesses 18 of the housing 10.

In order to connect the flexible bus bars 60 and 62 to the input terminals 38 and 38 ', the output terminals 43 and 43', and the second output coupling groove 18, 64) is used. The fastening nut 64 is installed in each of the first input coupling groove portion 14 and the second output coupling groove portion 15 and the second output coupling groove portion 18, 60, 62 and the terminals 38, 38 '(43, 43') are fastened.

A fuse 68 is installed in the upper part of the housing 10 in the space 22 of the housing cover 20. The legs 69 of the fuse 68 are fastened to the first input terminal 38 and the first bus bar 60 at one side by fastening the terminal fastener 66 to the fastening nut 64, And the other end is fastened to the first output terminal 43.

Hereinafter, the power distributing apparatus according to the present invention having the above-described structure will be assembled and used.

In this embodiment, a process of assembling the power distributing apparatus is shown in FIG. 8, which will be described with reference to this. The coupling nut 64 is inserted and fixed to the coupling grooves 13, 13 ', 15, 15', and 18 of the housing 10 in a state where various components constituting the power distributing device are formed. The fastening nut 64 may be inserted before the housing 10 is manufactured. Next, the first flexible bus bar 60 is inserted into the first slot 11 and the second flexible bus bar 62 is inserted into the second slot 12.

In this case, the first flexible bus bar 60 may not exactly coincide with the shape of the first slot 11. In this case, the operator can perform the assembling work while bending the first flexible bus bar 60 so as to move the bending position in conformity with the shape of the first slot 11. This is also the case when the second flexible bus bar 62 is inserted into the second slot 12.

After the first flexible bus bar 60 and the second flexible bus bar 62 are mounted on the housing 10, the shield case 47 is mounted on the housing 10. The upper half of the housing 10 is inserted into the inner space 48 'of the shield case 47.

Next, the input connector 35 is inserted into the input connector shield 50 of the shield case 47, and the first output connector 40 is inserted into the output connector shield 52. When the first connector 35 and the second connector 40 are mounted on the housing 10, the first input terminal 38 and the first bus bar 60 can be engaged with each other . That is, the through holes (not shown) formed in the first input terminal 38 and the through holes (not shown) formed in the first bus bar 60 coincide with each other so that the input coupling groove 13 .

A through hole of the second input terminal 38 'and a corresponding through hole of the second flexible bus bar 62 are formed in the input fastening groove 13' so that the terminal fastener 66 is inserted into the tool through- 14 to be fastened to the fastening nuts 64. The through hole of the first output terminal 43 of the first output connector 40 is located in the first output coupling groove 15 and the through hole of the second output terminal 43 ' (15 '). Therefore, the terminal fastener 66 is inserted through the tool through-hole 16 for fastening the second output terminal 43 'and the second flexible bus bar 62, 1 output coupling groove 15 '.

Next, the fuse 68 is positioned on the outer surface of the housing 10 corresponding to the inner space 48 'of the shield case 47. One of the legs 69 of the fuse 68 is located in the input coupling groove 13 where the first input terminal 38 and the first flexible bus bar 60 are together and uses the terminal fastener 66 And are fastened to these. The other one of the legs 69 of the fuse 68 is positioned in the first output coupling groove 15 with the first output terminal 43 and is fastened to the terminal fastener 66 with each other.

After the fuse 68 is installed, the case cover 56 is attached to the shield case 47. The case cover (56) is provided with the housing cover (20). The housing cover 20 is provided with the connection terminal 30 and the contact portions 33 on both sides of the connection terminal 30 protrude through the communication slot 28 of the housing cover 20, (23) and the outer surface of one side of the housing (10). Particularly, the supporting end 34 of the contact portion 34 is supported on the surface of the protrusion 23 so as to generate elastic deformation of the contact portion 33 so that the center portion of the contact portion 33 is more closely attached to the mating water side. do. This is because the distal end portion and the base portion of one contact portion 33 simultaneously apply force, so that the center portion of the contact portion 33 is more closely adhered to the counterpart.

A terminal of the input interlock unit 39 and a terminal of the output interlock unit 45 are located on the outer surface of the housing 10 to which the contact portion 33 is closely contacted . Accordingly, when the connection terminal 30 does not contact the terminals of the interlock units 39 and 45, the power supply through the input connector 35 is interrupted.

The power distributing device assembled in this way has a configuration as shown in Fig. Here, the mating connector is coupled to the input connector 35 and the first output connector 40, respectively, and the mating terminal is fastened to the second output coupling recessed portion 18 by the terminal fastener 66.

Therefore, the power input through the input connector 35 side is transmitted to the predetermined load through the first output connector 40 side, and the first bus bar (second bus bar) 60 and the second bus bar 62 to another load.

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 within the scope of equivalents should be construed as falling within the scope of the present invention.

For reference, the fuse 68 may not be used depending on the type of the load to which the first output connector 40 is connected.

In the illustrated embodiment, the case cover 56 covers the inner space 48 'of the shield case 47, and the case cover 56 constitutes a part of the shield case 47 .

10: housing 11: first slot
12: second slot 13, 13 ': input fastening groove
14: Tool through hole 15, 15 ': First output coupling groove
16: tool through hole 18: second output fastening groove
20: housing cover 22:
23: protruding portion 24: connecting terminal fitting portion
25: protruding bar 26: fixing protrusion
28: communication slot 30: interlock connection terminal
31: Connection terminal body 32: Fixing groove
33: contact portion 34: support end
35: input connector 37: input housing
37 ': terminal seating space 38: first input terminal
38 ': second input terminal 39: input interlock unit
40: first output connector 42: output housing
43: first output terminal 43 ': second output terminal
45: Output interlock unit 47: Shield case
48: Case body 48 ': inner space
48 ": Body fastening hole 49: Mounting bracket
49 ': fastening hole 50: input connector shielding part
52: first output connector shield 54: first seal
56: case cover 58: fastening hole
60: first flexible bus bar 62: second flexible bus bar
64: fastening nut 66: terminal fastener
68: Fuse 69: Leg

Claims

A housing having a first slot formed to be open to one side and a second slot isolated from the first slot to be opened to the other side;
A first flexible bus bar provided in the first slot to form a circuit and formed by stacking a plurality of metal plates,
A second flexible bus bar provided in the second slot to form a circuit and formed by stacking a plurality of metal plates,
And a shield case, wherein at least a portion of the housing is located in the inner space and the input connector shield and the first output connector shield are formed and made of metal.

The power distributing apparatus according to claim 1, further comprising an input connector installed in the input connector shield and supplying power, and a first output connector installed in the first output connector shield and connected to a load side.

The connector as claimed in claim 2, wherein the input connector comprises an input housing and the terminal seating space includes a first input terminal and a second input terminal, the output connector comprising an output housing, And a first output terminal and a second output terminal are provided in the formed terminal seating space.

[5] The apparatus of claim 3, wherein the first bus bar is electrically connected to the first input terminal and is connected to a terminal on the load side, the first bus bar being located at one end in a second output coupling groove portion opened to one side of the housing, Wherein the bar is electrically connected to the second input terminal and the second output terminal, and the other end is connected to another terminal of the load by a second output coupling groove portion opened to one side of the housing.

The connector according to any one of claims 2 to 4, further comprising a case cover for shielding an inner space of the shield case in which the housing is located, wherein the case cover is provided with an interlock connection terminal, The contact between the input connector and the interlock unit of the first output connector is cut off.

6. The connector according to claim 5, wherein the interlock connection terminal is provided at a connection terminal seating portion formed on a housing cover fixed to the case cover, And the central portion of the contact portion is brought into close contact with the interlock unit side.

A bus bar inserting step of adjusting and inserting the first flexible bus bar in accordance with the shape of the first slot formed in the housing and adjusting and inserting the second flexible bus bar in conformity with the shape of the second slot,
A housing seating step of seating a housing provided with the first and second flexible bus bars in a shield case;
A connector connecting step of inserting an input connector and a first output connector into the shield case to connect the first and second flexible bus bars,
And a case cover mounting step of mounting a case cover having a housing cover provided with an interlock connection terminal at an entrance of the shield case.

8. The method of claim 7, wherein after the connector connecting step, the fuse is connected to the input connector and the first flexible bus bar at one side and the other side is connected to the first output connector side.