KR101415896B1 - Bus bar cover and electric energy storage device assembly including the same and fabricating method thereof - Google Patents

Bus bar cover and electric energy storage device assembly including the same and fabricating method thereof Download PDF

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Publication number
KR101415896B1
KR101415896B1 KR1020120145494A KR20120145494A KR101415896B1 KR 101415896 B1 KR101415896 B1 KR 101415896B1 KR 1020120145494 A KR1020120145494 A KR 1020120145494A KR 20120145494 A KR20120145494 A KR 20120145494A KR 101415896 B1 KR101415896 B1 KR 101415896B1
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KR
South Korea
Prior art keywords
bus bar
circuit board
wire
cover
guide groove
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KR1020120145494A
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Korean (ko)
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KR20140076922A (en
Inventor
이재경
권윤혁
서태호
이정걸
Original Assignee
엘에스엠트론 주식회사
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Priority to KR1020120145494A priority Critical patent/KR101415896B1/en
Publication of KR20140076922A publication Critical patent/KR20140076922A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The present invention discloses a bus bar cover capable of effectively preventing a short circuit between a wire and another conductor by securing the fixing reliability of the wire through the structure improvement of the bus bar cover, and an electric energy storage device assembly including the same and a method of manufacturing the same. do.
The electric energy storage device assembly according to the present invention includes a plurality of cells for providing a charge and discharge function, a bus bar for connecting different cells, and a circuit board connecting wire for connecting the bus bar to a circuit board, And a bus bar cover made of an insulating material to support and guide the circuit board connecting wire.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bus bar cover, an electric energy storage device assembly including the same,

The present invention relates to a bus bar cover, and more particularly, to a bus bar cover having a structure capable of protecting a wire harness and improving the wiring process, an electric energy storage device assembly including the same, and a manufacturing method thereof .

Ultracapacitor (Ultra Capacitor), also known as Super Capacitor, is an energy storage device with intermediate characteristics between electrolytic capacitor and secondary battery. Due to its high efficiency and semi-permanent lifetime characteristics, There is an advantage that it can be used in combination with a battery and replaced.

Ultracapacitors are also used to replace batteries for applications where maintenance is not easy and long service life is required. The ultracapacitor has fast charging and discharging characteristics and thus can be used not only as an auxiliary power source for mobile communication information devices such as a mobile phone, a notebook computer, a PDA, etc., but also an electric car requiring high capacity, a nighttime road marking, an uninterrupted power supply It is very suitable as main power or auxiliary power source and it is widely used for such purpose.

In applying such ultracapacitors, a high voltage module of several thousand Farads or hundreds of volts is required to be used as a high voltage battery. The high voltage module can be achieved by connecting as many as necessary a plurality of ultracapacitors. At this time, each cell 10 is configured in the form of an assembly in which electrode terminals are connected by the bus bar 20.

Generally, the ultracapacitor assembly is provided with a balancing circuit board (not shown) that senses the voltage of each cell 10 and balances charge / discharge voltages. Each bus bar 20 is connected to a balancing circuit board via a wire harness 30 in order to sense the voltage of each cell 10.

The balancing circuit board is for making an equal charge / discharge voltage between cells 10 connected in series, and includes a comparator, a low-current discharge switching device, a resistor, and the like. As described above, since the wire harness 30 extending from the balancing circuit board is connected to each bus bar 20, it is possible to sense the voltage across each cell 10.

The ultracapacitor assembly is prepared by preparing a cell assembly module in which a plurality of cells 10 and a bus bar 20 are assembled and finding a bus bar 20 determined for each wire of the wire harness 30, And the assembly of the wire harness 30 is completed by connecting the connector of the wire harness 30 to the balancing circuit board.

1 is a plan view showing a configuration of a conventional electric energy storage device assembly.

1, in the conventional ultracapacitor assembly having the above structure, after one end of each wire of the wire harness 30 is fixed to the bus bar 20, a tape 40 And the wire is fixedly attached to the cell case.

However, when the wire is fixed to the cell case by the tape as described above, the tape 40 may fall off due to vibration or external impact, and the wire may freely flow, resulting in poor reliability.

Further, when the tape 40 is broken and the wire flows, the wire is brought into contact with the sharp edge portion of the bus bar 20, and the coating of the wire is damaged due to the friction between the wire and the edge portion, (short) may occur.

In addition, the work of fixing the wire to the cell case using the tape 40 has to be manually carried out along the wiring path of the wire, so that there is a problem that a large amount of air is required.

Further, when a thermistor (not shown) is installed in the cell case or the bus bar 20 for measuring the cell temperature, a separate curing type adhesive is used. In this case, the fixed reliability may be lowered, there is a problem.

Terminal connection device for an energy storage module (Korean Patent Laid-Open No. 10-2010-0080444, published Feb. 29, 2012)

Disclosure of the Invention The present invention has been made to solve the above problems, and it is an object of the present invention to provide a bus bar cover having a structure capable of reducing the fluidity of the wire to secure the fixed reliability of the wire, Device assembly and a method of manufacturing the same.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It is also to be understood that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations thereof.

According to an aspect of the present invention, there is provided a bus system including a plurality of cells providing a charge / discharge function, a bus bar connecting different cells, and a circuit board connecting wire connecting the bus bar to a circuit board, And a bus bar cover of an insulating material mounted on the bar for supporting and guiding the circuit board connecting wire.

Preferably, a portion of the bus bar cover may surround the edge of the bus bar.

Preferably, the bus bar cover may be provided with a guide groove extending along the longitudinal direction on at least one side edge of the bus bar cover to receive the circuit board connecting wire.

It is further preferable that the release preventing protrusion is formed adjacent to the guide groove to prevent the circuit board connecting wire from being detached from the guide groove.

Preferably, wire inflow holes are formed on both side edges of the bus bar cover so as to communicate with the guide grooves so as to draw the circuit board connecting wire into the guide groove or out of the guide groove .

The booth bar cover may further include a bus bar coupling protrusion formed at both side edges of the bus bar cover to provide a latching function with respect to the edge of the bus bar.

The bus bar cover may further include a wire fixing protrusion formed at both ends of the bus bar cover to provide a latching function with respect to the circuit board connecting wire.

Also, preferably, a storage space for installing the thermistor may be formed in a part of the bus bar cover.

According to another aspect of the present invention, there is provided an electric energy storage device comprising: a cover body of an insulating material mounted on a busbar of an electric energy storage device assembly to support and guide a wire for connecting a circuit board; And a guide groove extending along the longitudinal direction on at least one side edge of the cover body to receive the circuit board connecting wire.

According to another aspect of the present invention, there is provided an electric energy storage device assembly including a plurality of cells providing a charge / discharge function, a bus bar connecting different cells, and a circuit board connecting wire connecting the cell to the circuit board. (A) preparing a cell assembly module in which a plurality of cells and a bus bar are assembled; And (b) mounting a busbar cover on the top of the busbar; And (c) inserting the circuit board connecting wire into a guide groove formed along a longitudinal direction of the bus bar cover to perform wiring processing.

Preferably, in the step (b), the bus bar cover may be mounted so as to surround at least the edge portion of the bus bar.

Preferably, in the step (c), the circuit board connecting wire is hooked on the wire fixing protrusion provided at the end of the bus bar cover.

According to the present invention, since the bus bar cover surrounds the edge portion of the bus bar, it is possible to prevent the circuit board connecting wire from being damaged due to the flow of the circuit board connecting wire.

Further, by providing the guide groove for accommodating the circuit board connecting wire, it is possible to reduce the fluidity of the circuit board connecting wire and secure the fixing reliability of the wire for connecting the circuit board.

Therefore, according to the present invention, it is possible to prevent the occurrence of problems such as heat generation, fire and explosion of the electric energy storage device due to damage to the covering of the wire for connecting the circuit board, You can contribute.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
1 is a plan view showing a configuration of an electric energy storage device assembly according to the prior art.
2 is a perspective view of a bus bar cover according to a preferred embodiment of the present invention.
3 is a plan view of Fig.
4 is a rear perspective view of FIG. 2. FIG.
5 is a perspective view of an electrical energy storage device assembly in accordance with a preferred embodiment of the present invention.
Fig. 6 is a plan view of Fig. 5. Fig.
7 is a cross-sectional view taken along the line A-A 'in FIG.
8 is a cross-sectional view taken along the line B-B 'in Fig.
9 is a flow chart schematically illustrating a method of manufacturing an electrical energy storage device assembly 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. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 2 is a perspective view of a bus bar cover according to a preferred embodiment of the present invention, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a rear perspective view of FIG.

2 to 4, a bus bar cover 100 according to a preferred embodiment of the present invention includes a cover body 101 mounted on a bus bar (see 200 in FIG. 5) of an electric energy storage device assembly, And a guide groove 102 formed in the main body 101 and accommodating a circuit board connecting wire (see 400 in Fig. 5).

The cover main body 101 is mounted on the upper portion of the bus bar to provide a function of supporting and guiding the circuit board connecting wire. The cover main body 101 is formed of an insulating material and is configured in such a form that it can be covered by the bus bar. Here, the circuit board connecting wire is for connecting a circuit board such as a cell balancing circuit board to a cell (see 300 in Fig. 5) of the electric energy storage device assembly, and connects the bus bar and the circuit board to each other.

The edge of the cover body 101 is preferably formed so as to surround the edge portion of the bus bar. According to this structure, it is possible to prevent contact between the sharp edge portion of the bus bar and the wire for connecting the circuit board, thereby preventing damage of the wire covering due to friction.

The guide groove 102 is formed to extend along the longitudinal direction at least on one side of the bus bar cover, preferably on both side edges. A circuit board connecting wire is inserted into the guide groove 102. Here, the inner diameter of the guide groove 102 should be formed in such a size as to prevent the flow of the circuit board connecting wire inserted therein.

In addition, wire insertion / ejection holes 103 are formed at both side edges of the bus bar cover 100 for pulling the circuit board connection wire into the guide groove 102 or drawing it out of the guide groove 102. It is preferable that the wire entry / exit hole 103 is formed by partially cutting both side edges of the bus bar cover 100 to communicate with the guide groove 102.

Preferably, at least one or more detachment prevention protrusions 104 are formed integrally with the cover main body 101. The detent protrusion 104 is formed adjacent to the guide groove 102 to engage with the circuit board connecting wire inserted into the guide groove 102. The breakaway protrusion 104 is formed so as to protrude in the width direction of the guide groove 102 so that the circuit board connecting wire 400 is press-fitted and the press-fitted circuit board connecting wire 400 is not easily detached. The release of the circuit board connecting wire from the guide groove 102 due to vibration or external impact is prevented by the latching action of the release preventing protrusion 104. [

In addition, the bus bar cover 100 is provided with a bus bar coupling protrusion 105 which provides a locking function with respect to the edge of the bus bar. The bus bar coupling protrusions 105 are formed on both side edges of the bus bar cover. The bus bar engaging projection 105 prevents the bus bar cover 100 from being separated from the bus bar cover 100 due to vibration or external impact by engaging the bus bar cover 100 with the bottom edge of the bus bar.

As shown in FIG. 4, wire fastening protrusions 106 are provided at both ends of the bus bar cover 100. The wire fixing protrusions 106 are formed at both edge portions of the bus bar cover 100 to provide a latching function to the circuit board connecting wires.

At one side of the bus bar cover 100, a storage space 107 for accommodating a predetermined element included in the electric energy storage device assembly is formed. Preferably, the storage space 107 is provided with a thermistor (not shown) for measuring the temperature of the cell. Here, it is preferable that the accommodating space 107 corresponds to the outer shape of the thermistor so that the thermistor can be stably housed. According to this structure, since the thermistor is installed in the bus bar cover 100, a separate bonding process becomes unnecessary, so that the number of working hours can be reduced during the fixing operation of the thermistor.

5 and 6 show a configuration of an electric energy storage device assembly according to a preferred embodiment of the present invention.

5 and 6, an electric energy storage device assembly according to a preferred embodiment of the present invention includes a plurality of cells 300 for providing charge and discharge functions, a bus bar 200 for connecting different cells 300, And a bus bar cover 100 of an insulating material mounted on the bus bar and supporting and guiding the circuit board connecting wire 400.

The cell 300 is composed of an anode, a cathode, a separator, and an electrolyte to provide an electrochemical energy storage function, and an ultracapacitor can be preferably employed. The number and arrangement of cells 300 arranged in the electrical energy storage device assembly can be varied according to the required capacitance or voltage.

The bus bar 200 connects the electrode terminals of adjacent cells 300 in series, and is constituted by a conductor in the form of a bar or a plate.

The circuit board connecting wire 400 electrically connects the cell 300 and a circuit board (not shown). One end of the circuit board connecting wire 400 is connected to the bus bar 200 and the other end is connected to the circuit board. The circuit board performs voltage measurement, charge / discharge control, and the like necessary for the electric energy storage device. Preferably, a conventional cell balancing circuit board may be employed as the circuit board, which measures the voltage across each cell 300 to produce an equal charge / discharge voltage across the cells 300.

The bus bar cover 100 is mounted on the bus bar 200 for supporting and guiding the circuit board connection wire 400 and includes a cover body 101 of an insulating material having a shape that can be covered by the bus bar 200 And a guide groove 102 formed in a longitudinal direction on at least one side edge of the cover main body 101 and accommodating the circuit board connecting wire 400 therein. Since the bus bar cover 100 has been described above, a detailed description of the configuration thereof will be omitted.

As shown in FIG. 7, the bus bar cover 100 is firmly mounted by engaging the bus bar coupling protrusion 105 with the bottom edge of the bus bar 200. 8, the edge of the bus bar cover 100 surrounds the edge of the bus bar 200, so that the contact between the sharp edge of the bus bar 200 and the circuit board connecting wire 400 .

9 is a flow chart schematically illustrating a method of manufacturing an electrical energy storage device assembly according to a preferred embodiment of the present invention.

Referring to FIG. 9, a method of manufacturing an electric energy storage device assembly according to a preferred embodiment of the present invention includes preparing a cell assembly module in which a plurality of cells 300 and a bus bar 200 are assembled (Step S110) . Next, the bus bar cover 100 is mounted on the upper portion of the bus bar 200 (step S120). When the outer shape of the bus bar 200 and the inner shape of the bus bar cover 100 are coincident, they are positioned so as to correspond to each other, and are then coupled. When the bus bar cover 100 is provided with the bus bar coupling protrusion 105 which provides the latching function with respect to the edge of the bus bar 200, the bus bar cover 100 ).

Preferably, in step S120, the bus bar cover 100 is mounted so as to surround at least the edge portion of the bus bar 200.

Next, the circuit board connecting wire 400 is inserted into the guide groove 102 formed along the longitudinal direction of the bus bar cover 100, and wiring is performed (step S130). At this time, if there is an escape preventing protrusion 104 for preventing the circuit board connecting wire 400 from being detached, the escape preventing protrusion 104 is sufficiently inserted so as to be completely caught.

After inserting the circuit board connecting wire 400 into the guide groove 102, the circuit board connecting wire 400 is fixed to the wire fixing protrusion 106 provided at the end of the bus bar cover 100 Step S140).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

100: Busbar cover
101: Cover body
102: Guide groove
103: Wire entry and exit ball
104:
105: Booth bar coupling projection
106: wire fixing projection
107: Storage space
200: Booth bar
300: cell
400: Wire for circuit board connection

Claims (17)

1. An electrical energy storage device assembly comprising a plurality of cells providing a charge and discharge function, a bus bar connecting different cells, and a circuit board connecting wire connecting the bus bar to a circuit board,
And a bus bar cover of an insulating material mounted on the bus bar for supporting and guiding the circuit board connecting wire,
Wherein the bus bar cover includes a guide groove extending along a longitudinal direction on at least one side edge of the bus bar cover to receive the circuit board connecting wire and a guide groove formed adjacent to the guide groove, And an escape prevention protrusion for preventing the escape wire from being detached. The method according to claim 1,
Wherein a portion of the bus bar cover surrounds the edge of the bus bar. delete delete The method according to claim 1,
Wherein the bus bar cover includes wire insertion holes formed at both side edges of the bus bar cover so as to communicate with the guide groove so as to draw the circuit board connecting wire into the guide groove or to pull the wire out of the guide groove; ≪ / RTI > further comprising an electrical energy storage device assembly. The method according to claim 1,
Wherein the bus bar cover further comprises a bus bar coupling protrusion formed on at least one side edge of the bus bar cover to provide a locking function with respect to the edge of the bus bar. The method according to claim 1,
Wherein the bus bar cover further comprises a wire fixing protrusion formed at both ends of the bus bar cover to provide a latching function to the circuit board connecting wire. The method according to claim 1,
And a storage space for installing a thermistor is formed in a part of the bus bar cover. A cover main body of an insulating material mounted on a bus bar of the electric energy storage device assembly for supporting and guiding a circuit board connecting wire;
A guide groove extending along the longitudinal direction on at least one side edge of the cover body to receive the circuit board connecting wire; And
A release preventing protrusion formed adjacent to the guide groove to prevent the circuit board connecting wire from being detached from the guide groove;
Wherein the booth bar cover comprises: delete 10. The method of claim 9,
And a wire insertion hole formed on both side edges of the bus bar cover so as to communicate with the guide groove so as to draw the circuit board connecting wire into the guide groove or to draw the wire out of the guide groove The booth bar cover. 10. The method of claim 9,
Further comprising: a bus bar coupling protrusion formed on both side edges of the cover body to provide a locking function with respect to an edge of the bus bar. 10. The method of claim 9,
Further comprising wire fixing protrusions formed at both ends of the cover body to provide a latching function to the circuit board connecting wires. 10. The method of claim 9,
And a storage space for installing a thermistor is formed in a part of the cover body. A method of manufacturing an electrical energy storage device assembly comprising a plurality of cells providing a charge and discharge function, a bus bar connecting different cells, and a circuit board connecting wire connecting the bus bar to a circuit board,
(a) preparing a cell assembly module in which a plurality of cells and a bus bar are assembled; And
(b) attaching a booth bar cover to an upper portion of the booth bar; And
(c) a circuit board connecting wire is inserted into a guide groove formed along the longitudinal direction of the bus bar cover, and the circuit board connecting wire is hooked to the escape preventing protrusion for preventing the circuit board connecting wire from being detached Wherein the electrical energy storage device comprises a plurality of electrical energy storage devices. 16. The method of claim 15, wherein in step (b)
Wherein the bus bar cover is mounted so as to surround at least an edge portion of the bus bar. 16. The method of claim 15, wherein in step (c)
And fixing the circuit board connecting wire to a wire fixing protrusion provided at an end of the bus bar cover.
KR1020120145494A 2012-12-13 2012-12-13 Bus bar cover and electric energy storage device assembly including the same and fabricating method thereof KR101415896B1 (en)

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Application Number Priority Date Filing Date Title
KR1020120145494A KR101415896B1 (en) 2012-12-13 2012-12-13 Bus bar cover and electric energy storage device assembly including the same and fabricating method thereof

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KR101415896B1 true KR101415896B1 (en) 2014-07-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101674504B1 (en) * 2015-04-03 2016-11-22 삼화콘덴서공업주식회사 Capacitor module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006120489A (en) * 2004-10-22 2006-05-11 Yazaki Corp Assembly structure and assembly method of resin cover for battery
JP2008204981A (en) * 2007-02-16 2008-09-04 Matsushita Electric Ind Co Ltd Capacitor unit
JP2008204984A (en) 2007-02-16 2008-09-04 Matsushita Electric Ind Co Ltd Capacitor unit and manufacturing method therefor
KR20090098625A (en) * 2008-03-13 2009-09-17 주식회사 뉴인텍 Bus-bar for jointing capacitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006120489A (en) * 2004-10-22 2006-05-11 Yazaki Corp Assembly structure and assembly method of resin cover for battery
JP2008204981A (en) * 2007-02-16 2008-09-04 Matsushita Electric Ind Co Ltd Capacitor unit
JP2008204984A (en) 2007-02-16 2008-09-04 Matsushita Electric Ind Co Ltd Capacitor unit and manufacturing method therefor
KR20090098625A (en) * 2008-03-13 2009-09-17 주식회사 뉴인텍 Bus-bar for jointing capacitor

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