KR101916794B1 - Busbar connect structure and battery control device - Google Patents

Abstract

The present invention relates to a bus bar fastening structure and a battery control device having the same. The present invention provides a bus bar comprising: a first bus bar having a bus bar fixing part formed on one side thereof; And a bus bar connection block including a block body that exposes the first bus bar to one side while fixing the bus bar fixing part and fixes the first bus bar, And the bus bar fastening part is located in an inner space of the bus bar inserting part, and a battery control device having the bus bar fastening structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar fastening structure,

The present invention relates to a bus bar fastening structure and a battery control device having the same. More particularly, the present invention relates to a bus bar fastening structure for facilitating fastening of a bus bar and a battery control device for controlling the battery mounted on the vehicle.

When a large amount of current flows, it is difficult to cope with a wire type wire, and a bar type conductor made of a copper material is used. This is called a busbar, which can be understood as a conductor with low impedance and high current capacity.

The bus bar is used for power boxes such as buildings that use large power, and bus bars are used for vehicles having a large capacity battery such as a relay device, a junction box for a vehicle, and a battery control device.

In the structure for fixing the bus bar, generally, a bus bar is fixed using bolts and nuts. For example, Korean Patent Registration No. 10-0823337 discloses a structure for preventing interference when fastening, based on a structure for fastening a bus bar using bolts and nuts.

However, in the structure for fixing the bus bar using bolts and nuts, a work process for screw connection is required, and a bus bar fastening structure or a bus bar shape must be designed in order to insert a fastening tool, have.

On the other hand, there may be a problem that the fastening of the bus bar is loosened or the bus bar is disconnected due to vibration generated during operation of the vehicle or the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the problem that a bus bar fastening structure capable of firmly supporting a fastening structure of a bus bar while facilitating fastening of the bus bar is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bus bar fastening structure capable of fastening a bus bar by insertion without requiring a bolt or a nut when fastening the bus bar.

It is another object of the present invention to provide a battery control device having the above-described bus bar fastening structure and being mounted on a vehicle battery to control the vehicle battery.

The present invention provides a bus bar comprising: a first bus bar having a bus bar fixing part formed on one side thereof; And a bus bar connection block including a block body that exposes the first bus bar to one side while fixing the bus bar fixing part and fixes the first bus bar, Wherein the bus bar fastening part is formed in an inner space of the bus bar inserting part.

The bus bar connecting block may be formed by injecting the block body while inserting the first bus bar.

In addition, the block body may include at least one block fixing part for fixing the block body to another member.

The bus bar fixing part may include a first fixing plate and a second fixing plate spaced apart from each other, and the second bus bar may be fixed between the first fixing plate and the second fixing plate.

The second bus bar may be inserted into the bus bar inserting unit after being inserted into the bus bar inserting unit.

According to another aspect of the present invention, there is provided a heat sink plate for heat dissipation; An upper housing and a lower housing provided on both sides of the heat sink plate in a state in which an end of the heat sink plate is exposed; A battery provided on the inner side of the lower housing and having at least one second bus bar formed on the upper housing side; A battery controller provided in the upper housing; And at least one first bus bar having a bus bar fixing part and connected to the battery control part, wherein the first bus bar is fixed with the bus bar fixing part incorporated therein, and the passage between the bus bar fixing part and the bus bar fixing part And a bus bar connecting block having a block body having a bus bar inserting part formed therein, the second bus bar being inserted into the bus bar inserting part to be coupled to the bus bar fixing part of the first bus bar A battery control device is provided.

The bus bar connecting block may be fixed to the heat sink plate or the upper housing.

The bus bar connection block may be formed with a block fixing portion formed with a fixing screw insertion hole into which a fixing screw is inserted.

Also, the battery control unit may include a power conversion unit having an insulated gate bipolar transistor, and the power conversion unit may convert the DC supplied from the battery to AC.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a bus bar according to an embodiment of the present invention; Fig.

According to the present invention, when the second bus bar is inserted through the bus bar insertion portion provided in the bus bar connection block formed by molding the first bus bar, the second bus bar is guided through the bus bar insertion portion to be coupled to the first bus bar, There is an advantage of facilitating bonding.

In addition, the present invention has an effect of preventing the connection of the bus bar from being disconnected due to external vibration or the like by connecting the bus bars in the internal space of the bus bar connection block and being supported inside the bus bar connection block.

1 is a perspective view illustrating a bus bar connecting block in a bus bar fastening structure according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view of an interior of a bus bar connecting block in a bus bar fastening structure according to a preferred embodiment of the present invention. FIG.
FIG. 3 is a view illustrating a structure of a bus bar fastening structure according to a preferred embodiment of the present invention in which a second bus bar is coupled to a first bus bar provided in a bus bar connecting block.
4 is a perspective view illustrating a battery control apparatus having a bus bar fastening structure according to a preferred embodiment of the present invention.
5 is a view illustrating a state before the second bus bar is coupled to the bus bar connection block in the battery control device having the bus bar fastening structure according to the preferred embodiment of the present invention.
6 is a view illustrating a state in which a second bus bar is coupled to a bus bar connection block in a battery control device having a bus bar fastening structure according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

FIG. 1 is a perspective view illustrating a bus bar connecting block in a bus bar fastening structure according to a preferred embodiment of the present invention. FIG. 2 is a perspective view of a bus bar fastening structure according to a preferred embodiment of the present invention, As shown in Fig. FIG. 3 is a view illustrating a structure in which a second bus bar is coupled to a first bus bar provided in a bus bar connection block in a bus bar fastening structure according to a preferred embodiment of the present invention.

The present invention is characterized in that a bus bar connecting block (10) for connecting a bus bar for fastening a bus bar is provided. The bus bar connecting block 10 is configured such that the bus bar 16 is fixed to the block body 12 and an insertion portion 14 into which the other bus bar 20 is inserted is formed on one side of the block body 12 do. The bus bar 20 inserted through the insertion portion 14 is inserted into the end portion of the bus bar 16 fixed to the block body 12 (i.e., the end portion of the bus bar 16 located inside the insertion portion 14) And fixed to the formed fixed portion 18 so that the different bus bars 16 and 20 are connected. The bus bar connection block 10 facilitates connection of the bus bars. In addition, the connection of the bus bars is made in the internal space of the bus bar connection block 10 and is supported by the bus bar connection block 10 to prevent the connection of the bus bars 16, 20 from being separated by external vibration .

Referring to FIG. 1, a bus bar connecting block 10 includes a first bus bar 16 and a block body 12 to which a first bus bar 16 is fixed. The block body 12 can be formed by injecting a plastic resin with the first bus bar 16 inserted.

A first bus bar 16 is exposed on one side of the block body 12. A bus bar insertion portion (14) is provided on the bottom surface of the block body (12). A space is formed inside the bus bar insertion part 14 and the space extends to the bus bar fixing part 18 of the first bus bar 16. On both sides of the block body 12, a block fixing portion 15 for fixing the block body 12 to other members is provided and the block fixing portion 15 is provided with a fixing screw 15 for fixing the block body 12 to the other member A fixing screw insertion hole 15a into which a screw (not shown) is inserted is formed.

Referring to FIG. 2, the first bus bar 16 may be fixed to the block body 12 in a state of being bent in a substantially '?' Shape. A bus bar fixing portion 18 is formed at one end of the first bus bar 16. The bus bar fixing portion 18 is positioned at the innermost portion of the space formed inside the bus bar insertion portion 14 provided in the block body 12. [ The bus bar fixing portion 18 may be configured such that the first fixing plate 18-1 and the second fixing plate 18-2 face each other with a predetermined gap therebetween. One side of the first fixing plate 18-1 and the other side of the second fixing plate 18-2 are connected. The end portion of the second bus bar 20 inserted through the bus bar insertion portion 14 is coupled to the bus bar fixing portion 18. [ Referring to FIG. 3, the end of the second bus bar 20 is inserted into the insertion space 19 formed between the first and second fixing plates 18-1 and 18-2.

The distance between the first fixing plate 18-1 and the second fixing plate 18-2 is equal to or smaller than the thickness of the second bus bar 20 inserted into the insertion space 19, Is surely brought into contact with the inner surfaces of the first fixing plate 18-1 and the second fixing plate 18-2.

The second bus bar 20 is inserted and guided through a space formed inside the bus bar insertion portion 14 formed at one side of the block body 12 and the inside of the bus bar insertion portion 14, Can be easily coupled to the bus bar fixing portion 18 of the first bus bar 16. However, according to the present invention, only by inserting the second bus bar 20 into the bus bar insertion part 14, there is a problem that the second bus bar 20 is inserted into the bus bar insertion part 14 Position alignment and coupling with the first bus bar 16 are enabled, thereby shortening the bus bar assembly time.

The inner end surface of the bus bar insertion portion 14 may be formed to correspond to the cross-sectional shape of the second bus bar 20.

2, reference numeral 1 denotes a fixing part 1 to which a bus bar connecting block 10 is fixed. The fixing screw is inserted through the fixing screw insertion hole 15a of the block fixing portion 15 and fixed to the fixing portion 1 so that the bus bar connecting block 10 can be fixed at a predetermined position.

4 is a perspective view illustrating a battery control apparatus having a bus bar fastening structure according to a preferred embodiment of the present invention.

The battery control device 30 includes a bus bar connection block 10 as described above, and controls the battery 20.

4, the battery control device 30 includes an upper housing 32 and a lower housing 34 provided with a heat sink plate 36 for heat dissipation and a heat sink plate 36 interposed therebetween, A battery 38 is housed in the lower housing, and parts for controlling the battery 38 are provided in the upper housing 32. 4, the upper housing 32 and the lower housing 34 are partially removed. However, in the embodiment of the present invention, the upper housing 32 and the lower housing 34 are closed. The heat sink plate 36 is provided to discharge the generated heat to the outside. The battery 38 is disposed under the heat sink plate 36 and the output of the battery 38 is provided at an upper portion of the heat sink plate 36. May be incorporated.

The battery 38 provided in the lower housing 34 may be a 12V battery used in a vehicle, a 48V battery, or an integral battery having both 12V and 48V outputs. The battery 38 is provided with a plurality of second bus bars 20. In an embodiment, the second bus bar 20 is exposed to the top of the heat sink plate 36 through the heat sink plate 36. The heat sink plate 36 may be formed with a through hole for passing the second bus bar 20 therethrough.

Assuming that the battery 38 is an integral type battery having both 12V and 48V outputs, the battery 38 is provided with a 2-1 bus bar 20a and a 2-2 bus bar 20b for 12V output, A 2-3 bus bar 20c and a 2-4 bus bar 20d for a 48V output.

The plurality of bus bars 20 are coupled to a bus bar connecting block 10 provided on a heat sink plate 36. The bus bar connecting block 10 may have a plurality of bus bar insertion ports 14 or only one bus bar insertion port 14. The bus bar insertion port 14 provided in the bus bar connection block 10 can be adjusted according to the arrangement and number of the second bus bars 20 and the like.

In the embodiment shown in FIG. 4, two bus bar connecting blocks 10 are provided, three second bus bars 20a, 20b and 20c are coupled to the left bus bar connecting block 10, The second bus bar 20d is coupled to the bus bar connecting block 10 of FIG.

At least one first bus bar 16 is coupled to the block body 12 in the bus bar connection block 10 and the first bus bar 16 is connected to the block body Can be set in various ways.

A relay 40 for connecting and disconnecting the power source, a power conversion unit 42 for converting the power supplied from the battery 38, a current sensor 44 for sensing the current supplied to the outside, ) May be provided. A connector 50 may be provided at one side of the upper housing 32 to connect the power converted by the power conversion unit 42 to the outside. The relay 40, the power conversion unit 42, the current sensor 44, and the like can be understood as a battery control unit for controlling the battery 38.

In one embodiment, the connector 50 may be connected to a start motor for starting the vehicle, a drive motor for driving the vehicle, etc., and the power conversion unit 42 may convert the power supplied from the battery 38 into three phases And outputs the converted signal to the connector 50.

The power conversion unit 42 may function as an inverter for converting the DC supplied from the battery 38 to an AC for the motor input. The power conversion section may include an Insulated Gate Bipolar Transistor (IGBT) suitable for high-power, high-speed switching.

FIG. 5 is a view illustrating a state before the second bus bar is coupled to the bus bar connecting block in the battery control device having the bus bar fastening structure according to the preferred embodiment of the present invention. FIG. FIG. 4 is a view showing a state in which a second bus bar is coupled to a bus bar connecting block in a battery control device having another bus bar fastening structure according to the embodiment. FIG.

Referring to FIG. 5, at least one second bus bar 20 formed upward is fixed to the battery 38. At least one bus bar connecting block 10 is secured to the heat sink plate 36 or the upper housing 32. At least one first bus bar provided in the bus bar connection block 10 may be connected to another electronic component.

The battery 38 and the second bus bar 20 are moved upward or the heat sink plate 36 or the upper housing 32 to which the bus bar connecting block 10 is fixed.

6, the second bus bar 20 is inserted through a bus bar insertion part 14 formed at one side of the bus bar connection block 10 and inserted into the bus bar insertion part 14 of the bus bar connection block 10 To the bus bar fixing portion 18 of the first bus bar provided inside the bus bar fixing portion 18.

The present invention provides the advantage that the connection of the bus bar can be performed very conveniently and accurately through the bus bar connection block 10. [

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . 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: Bus bar connection block 12: Block body
14: bus bar insertion part 15: block fixing part
15a: Fixing screw insertion hole 16: First bus bar
18: bus bar governor 20: second bus bar
30: battery control device 32: upper housing
34: lower housing 36: heat sink plate
38: Battery 40: Relay
42: power conversion section 44: current sensor
50: Connector

Claims (9)

A first bus bar having a bus bar fixing part formed on one side thereof; And
And a bus bar connection block including a block body which exposes the first bus bar to one side while fixing the bus bar fixing part and fixes the first bus bar,
Wherein the block body is formed with a bus bar insertion portion into which one side of the second bus bar is inserted and the bus bar fixing portion is located in an inner space of the bus bar insertion portion,
Wherein the first bus bar is partially exposed to one side of the block body,
The bus bar inserting portion is provided on the outer surface of the block body in a direction different from the exposed portion of the first bus bar,
The bus bar fixing part includes first and second fixing plates which are separated from each other at one side of the first bus bar and an insertion space provided between the first fixing plate and the second fixing plate,
Wherein the second bus bar is guided by the bus bar insertion portion and is inserted between the first fixing plate and the second fixing plate while being inserted into the insertion space in the inner space of the bus bar insertion portion. The method according to claim 1,
Wherein the bus bar connecting block is formed by injecting the block body while inserting the first bus bar. The method according to claim 1,
Wherein the block body is provided with at least one block fixing part for fixing the block body to another member. delete delete Heat sink plate for heat dissipation;
An upper housing and a lower housing provided on both sides of the heat sink plate in a state in which an end of the heat sink plate is exposed;
A battery provided on the inner side of the lower housing and having at least one second bus bar formed on the upper housing side;
A battery controller provided in the upper housing; And
At least one first bus bar having a bus bar fixing part at one side and connected to the battery control part, and a second bus bar fixing part for fixing the first bus bar with the bus bar fixing part incorporated therein, A bus bar connecting block having a block body with a bus bar inserting portion formed therein;
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One side of the second bus bar is inserted into the bus bar insertion portion and the bus bar fixing portion is located in the inner space of the bus bar insertion portion,
Wherein the first bus bar is partially exposed to one side of the block body,
The bus bar inserting portion is provided on the outer surface of the block body in a direction different from the exposed portion of the first bus bar,
The bus bar fixing part includes first and second fixing plates which are separated from each other at one side of the first bus bar and an insertion space provided between the first fixing plate and the second fixing plate,
And the second bus bar is fixed between the first fixing plate and the second fixing plate while being inserted into the insertion space in the inner space of the bus bar inserting portion by being guided by the bus bar inserting portion. The method according to claim 6,
And the bus bar connecting block is fixed to the heat sink plate or the upper housing. 8. The method of claim 7,
Wherein the bus bar connecting block is formed with a block fixing portion formed with a fixing screw insertion hole into which a fixing screw is inserted. The method according to claim 6,
Wherein the battery control unit includes a power conversion unit having an insulated gate bipolar transistor, and the power conversion unit converts the DC supplied from the battery into an alternating current.

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