KR20220090918A - Cell module cover device for battery - Google Patents

Abstract

The present invention is a cell module cover device for a battery. The present invention is a cover device (10) capable of shielding one side of the module housing (3) of the cell module (1) for a battery. The cover device 10 has an insulating sheet 20 attached to the surface of the cover body 12 made of a metal material. At both ends of the cover body 12 , there may be hook rings 16 for temporarily fixing the electrical connection device 5 . The insulating sheet 20 may be formed into a predetermined shape by vacuum forming an insulating material and adhered to the cover body 12 with an adhesive member 40 .

Description

Cell module cover device for battery

The present invention relates to a cell module cover device for a battery.

Electric vehicles use rechargeable batteries. Such a battery is composed of a plurality of cell modules, and the cell module may also be composed of a plurality of battery cells. The cell module is configured by connecting a plurality of battery cells. To this end, a plurality of battery cells are disposed in the cell module housing and one side of the cell module housing is shielded with a cover device.

Electrical connection devices for electrically connecting battery cells may be installed at both ends of the cover device. The cover device may also be provided with a flexible printed circuit board for electrically connecting the electrical connection devices at both ends of the cover device.

Since the cover device covers one side of the cell housing in which the battery cells are accommodated, insulation is very important. Conventionally, a predetermined insulating layer is formed on the surface of the body plate of the cover device through powder coating.

However, it is very cumbersome to form the insulating layer by powder coating, and sharp edges are generated in the through holes formed in the body plate, and there is a problem that the insulating layer by the powder coating needs to be thicker in order to maintain the insulating performance. Thickening the insulating layer by the powder coating has a problem in that it costs a lot, and as the thickness of the insulating layer increases, the cost problem becomes larger.

Korean Patent Registration No. 10-2089645 Korean Patent Publication No. 10-2017-0037125

It is an object of the present invention to provide a cover device for a cell module for a battery.

It is an object of the present invention to allow a cover device and an electrical connection device of a battery cell module to be transported together.

It is an object of the present invention to provide insulation performance to a cover device of a cell module.

An object of the present invention is to enable a flexible substrate to be fixed with a simple configuration.

The present invention for achieving the above object is a cover body made of a metal material and having a side wall formed around the edge of the plate-shaped body plate, and made of an insulating material in a predetermined shape and positioned on the surface of the body plate and the side wall and may include an insulating sheet serving as an insulation, hook rings are formed at both ends of the cover body, so that an electrical connection device can be temporarily assembled, and one side of the module housing of the cell module for a battery can be shielded.

The insulating sheet may include a body plate attachment part positioned on one surface of the body plate and a sidewall wrapper positioned at an end of the body plate attachment part to surround the side wall.

A first body through hole is formed through one side of the body plate, a first sheet through hole corresponding to the first body through hole is formed in the insulating sheet, and a protruding rib is formed around the edge of the first sheet through hole to form the first body through hole. 1 It may be located on the inner surface of the body through hole.

A seat ring for the first through hole may be further provided on the body plate corresponding to the edge of the first body through hole.

A ring through hole having a shape corresponding to the first body through hole is formed in the seat ring for the first through hole, and a first inner surface rib is formed at an edge of the ring through hole to be positioned on the inner surface of the first body through hole.

A second body through hole is formed through the other side of the body plate, a second sheet through hole corresponding to the second body through hole is formed in the insulating sheet, and a protruding rib is formed around the edge of the second sheet through hole to form the second body through hole. 2 It may be located on the inner surface of the body through hole.

A seat ring for a second through hole may be further provided on the body plate corresponding to the edge of the second body through hole.

A ring through hole having a shape corresponding to the second body through hole is formed in the seat ring for the second through hole, and a second inner surface rib is formed at an edge of the ring through hole to be positioned on the inner surface of the second body through hole.

The body plate is provided with a fixing piece for fixing the flexible substrate connecting between the electrical connection devices, the fixing piece may be formed in pairs at a distance corresponding to the width of the flexible substrate.

The body plate may further have a component through hole in which the component installed on the flexible substrate is located.

According to another feature of the present invention, the present invention provides a cover body made of a metal material, a side wall is formed around the edge of the plate-shaped body plate, and a first body through hole is formed through one side of the body plate, and an insulating material. An insulating sheet made in the shape of and positioned on the surface of the body plate and the side wall to perform an insulating role and having a first sheet through hole formed at a position corresponding to the first body through hole, and the insulating sheet to adhere to the cover body It may include an adhesive member, and a seat ring for the first through hole installed on the body plate corresponding to the inner surface of the first body through hole and the edge of the first body through hole to perform insulation, and a module housing for a battery cell module One side can be shielded.

A protruding rib may be formed around the edge of the first sheet through-hole to be positioned on the inner surface of the first body through-hole.

A second body through hole is formed through the other side of the body plate, a second sheet through hole corresponding to the second body through hole is formed in the insulating sheet, and a protruding rib is formed around the edge of the second sheet through hole to form the second body through hole. 2 It may be located on the inner surface of the body through hole.

A seat ring for a second through hole may be further provided on the body plate corresponding to the edge of the second body through hole.

A ring through hole having a shape corresponding to the second body through hole is formed in the seat ring for the second through hole, and a second inner surface rib is formed at an edge of the ring through hole to be positioned on the inner surface of the second body through hole.

The cover device for a cell module of a battery according to the present invention may have at least one or more of the following effects.

In the cover device of the present invention, a side wall is formed around the edge of the cover body made of a metal material to shield one side of the module housing of the cell module. Accordingly, there is an effect of being able to open and close the inside of the module housing of the cell module to the outside.

And, in the cover device of the present invention, hook hooks are provided at both ends of the cover body so that the electrical connection device can be temporarily fixed. Therefore, since the cover device and the electrical connection device can be transported in a temporarily assembled state, there is an effect that the process of assembling the cell module of the battery can proceed very easily.

In the cover device of the present invention, an insulating sheet made of an insulating material formed by vacuum forming is installed on the inner surface of the cover body 12 made of a metal material, and an additional through hole sheet ring made of an insulating material in the first body through hole and the second body through hole Therefore, there is also the effect of greatly improving the insulation properties.

And, the cover device of the present invention can be fixed by hooking a flexible substrate with a fixing piece formed on the cover body. Therefore, there is an effect that the flexible substrate can be fixed at the correct position of the cover body without separate parts.

1 is a perspective view showing a state in which a preferred embodiment of the cover device according to the present invention is installed in a cell module for a battery.
Figure 2 is a perspective view showing the configuration of the cover device of the embodiment of the present invention.
Figure 3 is an exploded perspective view showing the configuration of the cover device of the embodiment of the present invention.
Fig. 4 is a cross-sectional view taken along line D4-D4 of Fig. 2;
5 is a cross-sectional view taken along line D5-D5 of FIG.
Figure 6 is an enlarged perspective view showing an enlarged area A of Figure 3;
7 is an enlarged perspective view of the bottom of the region B of FIG. 3 from the bottom;
8 is an enlarged perspective view showing an enlarged area C of FIG. 3 .
9 is an enlarged perspective view of the bottom of the region D of FIG. 3 viewed from the bottom;
Figure 10 is a bottom perspective view showing the configuration of the first through hole seat ring constituting the embodiment of the present invention.
11 is a bottom perspective view showing the configuration of the second through hole seat ring constituting the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

Hereinafter, the configuration of the cell module cover device for a battery according to an embodiment of the present invention will be described with reference to the accompanying drawings. The cover device 10 of the present invention may constitute an external appearance of the cell module 1 for a battery. The module housing 3 forms the exterior of the cell module 1, and the cover device 10 of the present invention shields the surface of the module housing 3 to protect the battery cells inside the module housing 3 It can be protected from the external environment.

Electrical connection devices 5 for electrically connecting between battery cells may be installed on both sides of the cell module 1 . And the flexible substrate 7 may be installed on the outer and/or inner surface of the cover device 10 of the present invention. The cell module 1 shown in FIG. 1 is for showing the position where the cover device 10 of the present invention is installed, and for convenience, all configurations are omitted and schematically illustrated.

In the cover device 10 of the embodiment of the present invention, the cover body 12 may form a skeleton. The cover body 12 may be a metal plate having a predetermined area. The cover body 12 may be made of a metal material. A material of the cover body 12 may be aluminum. The cover body 12 may be formed in a rectangular shape. In this embodiment, the cover body 12 is formed in a rectangular shape.

A side wall 14 surrounding the edge of the cover body 12 may be formed. The side wall 14 may be formed at an edge of the cover body 12 to be substantially orthogonal to the cover body 12 . The side wall 14 may be coupled to one edge of the module housing 3 .

The side wall 14 may have a coupling hole 15 for coupling with the module housing 3 . A plurality of coupling holes 15 may be formed in the sidewall 14 . Hanging holes 15' may also be formed in the sidewall 14. The hanging hole 15 ′ may be located adjacent to both ends of the side wall 14 formed on the long side of the cover body 12 . The hook hole 15 ′ may be used to temporarily fix the electrical connection device 5 . The hook holes 15 ′ may be formed in two at both ends of the cover body 12 to which the electrical connection device 5 is connected.

There may be a hook hook 16 for temporarily fixing the electrical connection device 5 . The hook 16 may be positioned between the side walls 14 formed at both ends of the cover body 12 . A total of four hook rings 16 may be formed at one end of the cover body 12 . As can be seen in FIG. 4 , the hook 16 may have a semicircular cross-section with a tip extending outward in a curved shape.

A first body through hole 17 may be formed at one side of the cover body 12 . The first body through hole 17 may be formed adjacent to the end of the cover body 12 in which the hook 16 is formed. The first body through-hole 17 may have an elliptical shape. A second body through-hole 17 ′ may be formed in the cover body 12 at the opposite end of the first body through-hole 17 . The second body through-hole 17 ′ may be formed in a garden shape. The first body through hole 17 and the second body through hole 17 ′ can be used for installation in a handling device in the process of mounting the cover device 10 of the present invention to the module housing 3 .

A pair of fixing pieces 18 may be formed on both sides of the surface of the cover body 12 . The fixing piece 18 may be formed in a cantilever shape by cutting a part of the cover body 12 . Each of the free ends in the pair of fixing pieces 18 may be formed to face each other.

Two of the fixing pieces 18 may be formed with a predetermined interval therebetween. The fixing piece 18 is for fixing the flexible substrate 7 . Accordingly, the spacing between the fixing pieces 18 may have a dimension corresponding to the width of the flexible substrate 7 . The pair of fixing pieces 18 may be respectively located at both ends of the cover body 12 . Alternatively, the spacing or position of the fixing piece 18 may vary depending on the shape or size of the flexible substrate 7 .

There may be a part through hole 19 passing through one side of the cover body 12 . In the component through-hole 19 , a component installed on the flexible substrate 7 may be located. The component through-hole 19 may be formed in a rectangular shape. The shape of the component through-hole 19 may be formed differently depending on the shape of the component installed on the flexible substrate 7 .

An insulating sheet 20 may be installed on the inner surface of the cover body 12 . The insulating sheet 20 may be made of a material having good insulating properties. A material of the insulating sheet 20 may be polycarbonate. The insulating sheet 20 may be made by vacuum molding polycarbonate. The insulating sheet 20 may be made in a shape corresponding to the inner surface shape of the cover body 12 . The insulating sheet 20 may be made to correspond to the shape of the corresponding part so as to shield the part requiring insulating performance in the cover body 12 .

The insulating sheet 20 may include a body plate attachment part 22 and a sidewall wrapping part 24 . The body plate attachment part 22 is a portion positioned on the inner surface of the body plate 13 of the cover body 12 . The sidewall wrapping portion 24 is a portion formed to surround the sidewalls 14 at both ends of the cover body 12 .

A first sheet through hole 26 may be formed at one side of the insulating sheet 20 . The first sheet through-hole 26 may be formed in a shape corresponding to a position corresponding to the first body through-hole 17 of the body plate 13 . A protruding rib 26 ′ may protrude to surround the inner surface of the first body through hole 17 surrounding the edge of the first sheet through hole 26 . The configuration associated with the protruding rib 26' is best illustrated in FIG.

A second sheet through hole 28 may be formed at the other side of the insulating sheet 20 . The second sheet through-hole 28 may be formed in a shape corresponding to a position corresponding to the second body through-hole 17 ′ of the body plate 13 . A protruding rib 28 ′ may protrude to surround an inner surface of the second body through hole 17 ′ surrounding an edge of the second sheet through hole 28 . The configuration associated with the protruding ribs 28' is best illustrated in FIG. 5 .

The insulating sheet 20 may have a sheet component through-hole 29 corresponding to the component through-hole 19 of the body plate 13 . A protruding rib 29t surrounding the edge of the sheet part through hole 29 may be formed to protrude.

A part rib 29 ′ may protrude near the seat part through hole 29 . The part rib 29 ′ may be formed to protrude to the opposite side of the body plate 13 . The component rib 29' may have a cylindrical shape. Accordingly, a through hole 29" may be formed through the component rib 29'. The component rib 29' may serve to fix the component.

In order to insulate the first body through-hole 17 of the body plate 13, the first through-hole seat ring 30 may be used. The first through-hole seat ring 30 may surround the first body through-hole 17 and its periphery. The first through-hole seat ring 30 may have a ring through-hole 31 having the same shape as that of the first body through-hole 17 . A first inner surface rib 32 may be formed around the edge of the ring through hole 31 . The first inner surface rib 32 may surround the inner surface of the first body through hole 17 . More precisely, as shown in FIG. 4 , the protruding rib 26 ′ of the insulating sheet 20 may be surrounded.

In order to insulate the second body through-hole 17 ′ of the body plate 13 , a second through-hole seat ring 34 may be used. The second through-hole seat ring 34 may surround the second body through-hole 17 ′ and its periphery. A ring through hole 35 having the same shape as that of the second body through hole 17 ′ may be formed in the second through hole seat ring 34 . A second inner surface rib 36 may be formed around the edge of the ring through hole 35 . The second inner surface rib 36 may surround the inner surface of the second body through hole 17 ′. More precisely, as shown in FIG. 5 , the protruding rib 28 ′ of the insulating sheet 20 may be surrounded.

Meanwhile, the insulating sheet 20 may be adhered to the inner surface of the body plate 13 using an adhesive member 40 . The adhesive member 40 is a kind of double-sided tape. The number of the adhesive members 40 may be different depending on the area of the insulating sheet 20 . In this embodiment, the insulating sheet 20 is adhered to the body plate 13 by using two band-shaped adhesive members 40 side by side.

Hereinafter, the use of the cell module cover device for a battery according to the present invention having the configuration as described above will be described in detail.

The adhesive sheet 20 may be vacuum-formed to have a shape as shown in FIG. 3 . The adhesive sheet 20 is adhered to the body plate 13 of the cover body 12 using the adhesive member 40 .

In the case of this embodiment, before bonding the adhesive sheet 20 to the body plate 13 , the first through-hole seat ring 30 is attached to the first body through-hole 17 , and the second through-hole seat ring (34) may be installed in advance in the second body through-hole (17'). Of course, the adhesive sheet 20 is first attached to the body plate 13 so that the protruding rib 26' is the first body through hole 17, and the protruding rib 28' is the second body through hole. (17') may be located first. Then, the first through-hole seat ring 30 may be installed in the first body through-hole 17 , and the second through-hole seat ring 34 may be installed in the second body through-hole 17 ′.

The cover device 10 made in this way can be temporarily assembled by hooking the electrical connection device 5 to the hook hook 16 . The flexible substrate 7 may be fixed to the surface of the cover body 12 using the fixing piece 18 . The flexible substrate 7 can be simultaneously connected with the electrical connection device 5 on both sides.

In this state, the present invention can be transferred and put into an assembly line. When handling the cover device 10 in the assembly line, the first body through-hole 17 and the second body through-hole 17 ′ can be used.

After coupling the cover device 10 to the module housing 3 , the connection device 5 is rotated 90 degrees to be positioned on both sides of the module housing 3 . At this time, one side of the electrical connection device 5 may be hung on the hanging hole 15 ′. After the electrical connection device 5 is positioned on both sides of the module housing 2, the electrode of the battery cell and the bus bar of the electrical connection device 5 are welded to make an electrical connection.

In the above, even though it has been described that all components constituting the embodiment according to the present invention operate in combination or combined into one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be inherent, unless otherwise specified, excluding other components. Rather, it should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: Cell module 3: Module housing
5: Electrical connection device 7: Flexible board
10: cover device 12: cover body
13: body plate 14: side wall
15: coupling hole 15': hook hole
16: hook hook 17: first body through hole
17': second body through hole 18: fixed piece
19: parts through hole 20: insulation sheet
22: body plate attachment part 24: side wall wrap part
26: first sheet through hole 26': protruding rib
28: second sheet through hole 28': protruding rib
29: seat part through hole 29t: protruding rib
29': part rib 29": through hole
30: first through hole seat ring 31: ring through hole
32: first inner rib 34: second through hole seat ring
35: ring through hole 36: second inner rib
40: adhesive member

Claims (15)

A cover body made of a metal material and having a side wall formed around the edge of the plate-shaped body plate,
An insulating sheet made of an insulating material in a predetermined shape and positioned on the surface of the body plate and the side wall to perform an insulating role,
Hook rings are formed at both ends of the cover body, so that an electrical connection device can be temporarily assembled,
A battery cell module cover device that shields one side of the module housing of the battery cell module.
The battery cell module cover device according to claim 1, wherein the insulating sheet includes a body plate attachment part positioned on one surface of the body plate and a side wall wrapper positioned at an end of the body plate attachment part to surround the side wall.
The method according to claim 1, wherein a first body through hole is formed through one side of the body plate, and a first sheet through hole corresponding to the first body through hole is formed in the insulating sheet, and the edge of the first sheet through hole is formed around the A battery cell module cover device having a protruding rib formed on the inner surface of the first body through hole.
The cell module cover device for a battery according to claim 3, wherein a seat ring for a first through hole is further provided on a body plate corresponding to an edge of the first body through hole.
5. The method of claim 4, wherein the first through-hole seat ring is formed with a ring through-hole having a shape corresponding to the first body through-hole, and a first inner rib is formed at an edge of the ring through hole, and is located on the inner surface of the first body through-hole. A cell module cover device for a battery.
The method according to claim 5, wherein a second body through hole is formed through the other side of the body plate, and a second sheet through hole corresponding to the second body through hole is formed in the insulating sheet, and the edge of the second sheet through hole is formed around the A battery cell module cover device having a protruding rib formed on the inner surface of the second body through hole.
The battery cell module cover device according to claim 6, wherein a seat ring for a second through hole is further provided on a body plate corresponding to an edge of the second body through hole.
According to claim 7, wherein the second through-hole seat ring is formed with a ring through-hole having a shape corresponding to the second body through-hole, and a second inner rib is formed at an edge of the ring through-hole, and is located on the inner surface of the second body through-hole. A cell module cover device for a battery.
According to claim 1, wherein the body plate is provided with a fixing piece for fixing the flexible substrate for connecting the electrical connection device, the fixing piece is formed in pairs at a distance corresponding to the width of the flexible substrate for batteries Cell module cover device.
The battery cell module cover device according to claim 1, wherein the body plate further has a component through hole in which the component installed on the flexible substrate is located.
A cover body made of a metal material and having a side wall formed around the edge of the plate-shaped body plate and having a first body through hole penetrating through one side of the body plate;
An insulating sheet made of an insulating material in a predetermined shape and positioned on the surface of the body plate and the sidewall to play an insulating role, and a first sheet through hole is formed at a position corresponding to the first body through hole;
an adhesive member for adhering the insulating sheet to the cover body;
and a seat ring for the first through hole installed on the body plate corresponding to the inner surface of the first body through hole and the edge of the first body through hole to perform insulation,
A battery cell module cover device that shields one side of the module housing of the battery cell module.
The battery cell module cover device according to claim 11, wherein a protruding rib is formed around an edge of the first sheet through hole and is located on the inner surface of the first body through hole.
The method according to claim 12, wherein a second body through hole is formed through the other side of the body plate, and a second sheet through hole corresponding to the second body through hole is formed in the insulating sheet, and the edge of the second sheet through hole is formed. A battery cell module cover device having a protruding rib formed on the inner surface of the second body through hole.
The battery cell module cover device according to claim 13, wherein a seat ring for a second through hole is further provided on a body plate corresponding to an edge of the second body through hole.
15. The method of claim 14, The second through-hole seat ring is formed with a ring through-hole having a shape corresponding to the second body through-hole, and a second inner rib is formed at an edge of the ring through-hole, and is located on the inner surface of the second body through-hole. A cell module cover device for a battery.

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