KR102572485B1 - Manufacturing apparatus and manufacturing method of insulation plate for battery cover of electric vehicle - Google Patents

Abstract

A method for manufacturing an insulating plate for a battery cover of an electric vehicle is provided. The method for manufacturing an insulating plate for a battery cover of an electric vehicle according to an aspect of the present invention includes the steps of: (a) transferring a sheet rearward from a first transfer module; (b) heating the surface of the sheet through a heating module; (c) forming the surface of the sheet heated in step (b) by a forming module; and (d) cutting a molded sheet, the surface of which has been molded in step (c), by a cutting module.

Description

Insulation plate manufacturing apparatus and manufacturing method for battery cover of electric vehicle {Manufacturing apparatus and manufacturing method of insulation plate for battery cover of electric vehicle}

The present invention relates to an apparatus for manufacturing an insulating plate for a battery cover of an electric vehicle and a method for manufacturing the same.

An electric vehicle (EV) mainly refers to a vehicle that obtains power by driving an AC or DC motor using power from a battery, and a battery serving as a power source is indispensable to such an electric vehicle.

In general, batteries used in electric vehicles are modular, in which positive and negative plates and separators are installed inside a cell case, and a storage battery filled with electrolyte is provided, and is charged to the rated capacity by a generator and consumes electricity. The electrochemical action of being discharged according to the increase of is repeated.

In this way, since the battery is a key device in an electric vehicle, it is sealed with a cover to protect it from external impact and is maintained to have watertightness.

A plurality of holes may be formed in the battery cover. The plurality of holes may be formed to pass through an outer surface of the battery cover from an inner surface. A heat dissipation structure in which heat in the battery is discharged to the outside through the hole may be implemented. However, since foreign substances may be introduced from the outer region through the hole or residues of the storage battery may be discharged to the outside of the cover through the hole, an insulating plate may be disposed on the battery cover.

The insulating plate is formed of an insulating material and includes a protrusion coupled to a hole of the battery cover.

An object to be solved by the present invention is an apparatus for manufacturing an insulating plate for a battery cover of an electric vehicle, which is easy to shape, can minimize the defect rate by maintaining a constant tension, and can shorten the process time to be suitable for mass production, and It is to provide a manufacturing method thereof.

A method for manufacturing an insulating plate for a battery cover of an electric vehicle according to an aspect of the present invention for achieving the above object includes: (a) transferring a sheet from a first transport module to the rear; (b) heating the surface of the sheet through a heating module; (c) molding the surface of the sheet heated in step (b) by a molding module; and (d) cutting, by a cutting module, the molding sheet whose surface is molded in step (c).

Through this embodiment, there is an advantage that the shape processing of the sheet can be more easily performed by the heating module.

In addition, since a plurality of modules are disposed along the transport direction of the sheet, there is an advantage in that the insulation sheet can be manufactured continuously.

In addition, there is an advantage in that the defect rate in manufacturing the insulating sheet can be significantly reduced by a structure for preventing sagging of the sheet through a plurality of transport modules, roller modules, and alignment modules, and a molding jig structure in which protrusions and grooves are formed in two rows. .

1 is a perspective view illustrating a battery cover of an electric vehicle according to an embodiment of the present invention;
2 is a plan view showing one side of a battery cover of an electric vehicle according to an embodiment of the present invention.
3 is an exploded perspective view of a battery cover and an insulating plate of an electric vehicle according to an embodiment of the present invention.
4 is a plan view of a processing plate according to an embodiment of the present invention;
5 is a plan view showing one side of an apparatus for manufacturing an insulating plate for a battery cover of an electric vehicle according to an embodiment of the present invention.
6 is a cross-sectional view of a first transfer module according to an embodiment of the present invention.
7 is a cross-sectional view of a molding module according to an embodiment of the present invention.
8 is a view showing a coupling structure of a second transfer module and a processing plate according to an embodiment of the present invention.
9 is a flowchart of a method of manufacturing an insulating plate for a battery cover of an electric vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in a variety of different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively implemented. can be used in combination or substitution.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, can be generally understood by those of ordinary skill in the art to which the present invention belongs. It can be interpreted as meaning, and commonly used terms, such as terms defined in a dictionary, can be interpreted in consideration of contextual meanings of related technologies.

Also, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when described as "at least one (or more than one) of A and (and) B and C", A, B, and C are combined. may include one or more of all possible combinations.

In addition, 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 only used to distinguish the component from other components, and the term is not limited to the nature, order, or order of the corresponding component.

And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, the component is directly 'connected', 'coupled', or 'connected' to the other component. In addition to the case, it may include cases where the component is 'connected', 'combined', or 'connected' due to another component between the component and the other component.

In addition, when it is described as being formed or disposed on the "upper (above)" or "lower (below)" of each component, "upper (above)" or "lower (below)" means that two components are directly connected to each other. It includes not only contact, but also cases where one or more other components are formed or disposed between two components. In addition, when expressed as "upper (above)" or "lower (down)", the meaning of not only an upward direction but also a downward direction may be included based on one component.

The names of the present invention are 'insulation plate manufacturing apparatus for battery cover of electric vehicle' and 'insulation plate manufacturing method for battery cover of electric vehicle', but in the following specification, for convenience of explanation, 'insulation plate manufacturing apparatus', Each of them will be referred to as 'insulation plate manufacturing method' and explained.

1 is a perspective view showing a battery cover of an electric vehicle according to an embodiment of the present invention, FIG. 2 is a plan view showing one side of the battery cover of an electric vehicle according to an embodiment of the present invention, and FIG. It is an exploded perspective view of a battery cover and an insulation plate of an electric vehicle according to an embodiment, and FIG. 4 is a plan view of a processing plate according to an embodiment of the present invention.

1 to 4, the battery cover 10 of an electric vehicle according to an embodiment of the present invention is coupled to one surface of a body (not shown) forming the outer shape of the battery, and is coupled to the body. Accordingly, a space in which one or more battery cells are accommodated may be formed.

The cover 10 may include a base plate 12 and a side plate 14 . The base plate 12 is formed in a plate shape, and the upper or lower surface may form the upper or lower surface of the battery. The base plate 12 may have a rectangular cross-sectional shape. The base plate 12 has a first side having a longitudinal direction defined in a first direction (X, see FIG. 2), and a length in a second direction (Y, see FIG. 2) perpendicular to the first direction (X). It may include a second side on which a direction is defined. The first side may be larger than the second side. The first side may be provided in plurality and disposed to face each other, and the second side may be provided in plurality and disposed to face each other.

The side plate 14 may have a shape extending by being bent upward or downward from the edge of the base plate 12 . The side plate 14 may form a side surface of the battery. The side plates 14 may be provided in plurality and may be disposed to face each other based on the base plate 12 .

The side plate 14 may be connected to a first side of the base plate 12 . One end of the side plate 14 may form one side of the base plate 12 . The other end of the side plate 14 may be bent outward than the other region to form a coupling portion for coupling with the main body. The coupling portion may include a screw hole through which a screw is fastened. The cover 10 may be screwed to the main body through the screw hole of the coupling part.

The base plate 12 may include a plurality of holes 13 (see FIG. 3). Each of the plurality of holes 13 may be disposed to penetrate from one side of the base plate 12 to the other side. The plurality of holes 13 may be arranged to form a plurality of rows in the base plate 12 . The plurality of holes 13 may be arranged in a first row. The first row may be disposed adjacent to any one side plate 14 of the plurality of side plates 14 . In the first row, the plurality of holes 13 may be spaced apart from each other along the second direction Y. The second row may be disposed adjacent to another side plate 14 of the plurality of side plates 14 . In the second row, the plurality of holes 13 may be spaced apart from each other along the second direction Y. The first column and the second column may be arranged in parallel. The number of the holes 13 disposed in the first column and the number of the holes 13 disposed in the second column may be the same.

The cover 10 may be made of a metal material. Alternatively, the cover 10 may be made of an insulating material.

An insulating plate 20 may be coupled to the cover 10 . The insulating plate 20 may be coupled to an inner surface of the cover 10 . The insulating plate 20 may be disposed to cover the hole 13 . The insulating plate 20 may be disposed in the first row. The insulating plate 20 may be disposed in the second row. That is, two insulating plates 20 may be combined based on a single cover 10 .

The insulating plate 20 may be formed of an insulating material. The material of the insulating plate 20 may include synthetic resin or plastic. The insulating plate 20 may be a thermoplastic resin. For example, the material of the insulating plate 20 may be polypropylene.

The insulating plate 20 may include a plate-shaped body and a protruding portion protruding from an outer surface of the body more than other areas. The body may be coupled to an inner surface of the cover 10 . The protrusion has a shape protruding from one surface of the body and may be disposed to cover the hole 13 . The protruding portion may be formed to correspond to a cross-sectional shape of the hole 13 . A groove (24, see FIG. 2) having a more concave shape than other regions may be formed in an area corresponding to the formation area of the protrusion part on the other surface of the body.

The number of protrusions may be formed on the surface of the body to correspond to the number of holes 13 disposed in the first column or the number of holes 13 disposed in the second column.

Hereinafter, the apparatus 100 for manufacturing an insulating plate for a battery cover of an electric vehicle will be described.

5 is a plan view showing one side of an apparatus for manufacturing an insulating plate for a battery cover of an electric vehicle according to an embodiment of the present invention, FIG. 6 is a cross-sectional view of a first transfer module according to an embodiment of the present invention, and FIG. 7 is A cross-sectional view of a molding module according to an embodiment of the present invention, and FIG. 8 is a view showing a coupling structure between a second transfer module and a processing plate according to an embodiment of the present invention.

5 to 8, the apparatus 100 for manufacturing an insulating plate for a battery cover of an electric vehicle according to an embodiment of the present invention is for manufacturing the insulating plate 20, and includes a main body 110 and a first roller. Module 120, first transfer module 130, heating module 140, forming module 150, alignment module 160, second transfer module 170, second roller module 180 and cutting module ( 190) may be included. Based on the direction in which the sheet 50 for manufacturing the insulating plate 20 is transported, the first roller module 120, the first transport module 130, the heating module 140, and the molding module 150, the alignment module 160, the second transfer module 170, the second roller module 180, and the cutting module 190 may be sequentially arranged. The first roller module 120, the first transport module 130, the heating module 140, the forming module 150, the alignment module 160, the second transport module 170, the A path for manufacturing the insulating plate 20 may be formed in the insulating plate manufacturing apparatus 100 by the two-roller module 180 and the cutting module 190 . The route may be named a manufacturing route.

The main body 110 may form an outer shape of the insulating plate manufacturing apparatus 100 . The main body 110 may be formed in a box shape. The main body 110 may be a hexahedron. On one side of the main body 100, the first roller module 120, the first transfer module 130, the heating module 140, the forming module 150, the alignment module 160, the first The two-transport module 170, the second roller module 180, and the cutting module 190 may be disposed. The first roller module 120, the first transport module 130, the heating module 140, the forming module 150, the alignment module 160, the second transport module 170, the Among the two-roller module 180 and the cutting module 190, the cutting module 190 may be disposed in an area that does not overlap with the main body 110 in a horizontal direction. The main body 110 may be spaced apart from the ground through the leg part 112 .

A control panel 101 may be disposed on one side of the main body 110 . The control panel 101 includes a display unit 102 for displaying information related to control and operation of the insulating plate manufacturing apparatus 100 and a user input by a user to control the insulating plate manufacturing apparatus 100. An input unit 104 may be included. The user input unit 104 may be a button. The display unit 102 may display the production quantity of insulating plates for a set time, the sheet conveyance speed, the temperatures of the heating module 140 and the molding module 150, and the like.

The first roller module 120 may be disposed at one end of the manufacturing path. A sheet 50 for manufacturing the insulating plate 20 may be rolled on the first roller module 120 . The first roller module 120 includes a first roller 122 on which the sheet 50 is rolled, and a second roller 124 spaced apart from the first roller 122 and rotating together with the movement of the sheet 50. ), and a third roller 126 spaced apart from the second roller 124 and rotating with the movement of the sheet 50, and spaced apart from the third roller 126 and moving the sheet 50 It may include a fourth roller 128 that rotates together. The first to fourth rollers 122 , 124 , 126 , and 128 may be sequentially arranged along the moving direction of the sheet 50 . The first to fourth rollers 122, 124, 126, and 128 may be disposed to form different heights in the vertical direction. The sheet 50 is wound around the first roller 122 by a roll method, and the sheet 50 is transported backward by rotation of the first to fourth rollers 122, 124, 126, and 128. It can be.

The first to fourth rollers 122, 124, 126, and 128 are connected to a rotation shaft forming a rotation center, and the apparatus 100 for manufacturing an insulating plate for a battery cover of an electric vehicle is an actuator for operating the rotation shaft (not shown) city) may be additionally included.

The first transfer module 130 may be disposed behind the first roller module 120 . The first transfer module 130 may transfer the sheet transferred from the first roller module 120 to the heating module 140 . As shown in FIG. 6, the first transfer module 130 includes a first frame 131 that reciprocates in the forward and backward directions, and a first moving jig 134 disposed in the first frame 131. and a first fixing jig 136. The first frame 131 may include a space in which the first moving jig 134 and the first fixing jig 136 are accommodated. A first guide rail 132 is formed in an area where the first transfer module 130 is placed in the side surface of the main body 110, and the first frame 131 is coupled to the first guide rail 132. A guide protrusion (not shown) may be included. The first frame 131 may be slid along the first guide rail 132 through the guide protrusion, and the movement of the first frame 131 may be a forward and backward reciprocating movement.

The first moving jig 134 and the first fixing jig 136 are disposed within the first frame 131 and may be disposed in a vertical direction. For example, the first moving jig 134 is disposed above the first fixing jig 136 and can move vertically within the first frame 131 . A first passage 137 may be formed between the first moving jig 134 and the first fixing jig 136 in which at least a portion of the sheet 50 moving along the manufacturing path is disposed. Therefore, when the first moving jig 134 moves downward, the first passage 137 is closed, and the lower surface of the first moving jig 134 can come into contact with the upper surface of the seat 50. . When the first moving jig 134 moves upward, the first passage 137 is opened, and the lower surface of the first moving jig 134 may be spaced apart from the upper surface of the seat 50 .

The first movable jig 134 is connected to the pneumatic cylinder 135 and can be moved vertically within the frame 131 .

Referring to the transfer process of the sheet 50 through the first transfer module 130, the first frame 131 is formed between one end of the first guide rail 132 and the first guide rail 132. It can be moved forward and backward between the other ends. When the first frame 131 is disposed on one end of the first guide rail 132 , the first moving jig 134 moves downward and comes into contact with one area of the seat 50 . And, in a state in which the seat 50 is coupled between the lower surface of the first moving jig 134 and the upper surface of the first fixing jig 136, the first frame 131 is the first guide rail ( 132) can be moved toward the other end. Next, when the frame 131 is placed on the other end of the first guide rail 132, the first moving jig 134 is spaced apart from the first fixing jig 136 and the upper surface of the seat 50. You can move upwards as much as possible. Accordingly, the seat 50 may be moved backward by the moving distance of the first frame 131 . In addition, the first frame 131 moves upward, which is a direction away from the first moving jig 134 and the first fixing jig 134, toward one end of the first guide rail 132 again. can be moved backwards. By the above-described process, the sheet 50 can continuously move backward along the manufacturing path.

The heating module 140 may be disposed behind the first transfer module 130 . The heating module 140 may include a plurality of heating jigs 142 and 144 . The plurality of heating jigs 142 and 144 may include a first heating jig 142 disposed above and a second heating jig 144 disposed below based on the arrangement area of the sheet 50. there is. The first heating jig 142 is connected to the pneumatic cylinder 143 and can be moved in the vertical direction. The second heating jig 144 is also connected to the pneumatic cylinder 145 and can be moved in the vertical direction.

The first heating jig 142 and the second heating jig 144 are moved downward or upward to come into contact with the upper and lower surfaces of the sheet 50, or to be spaced apart from the upper and lower surfaces of the sheet 50. Each can be moved upwards or downwards. Contact between the first heating jig 142 and the second heating jig 144 with the sheet 50 may be made following the backward movement of the first transfer module 130 . That is, after the first frame 131 arrives at the other end of the first guide rail 132 together with the seat 50, the first heating jig 142 and the second heating jig 144 Is moved downward or upward, respectively, can be in contact with the outer surface of the sheet (50).

The first heating jig 142 and the second heating jig 144 may form a high temperature by a heat source. The lower surface of the first heating jig 142 and the upper surface of the second heating jig 144 may be at 125°C to 175°C, respectively. Accordingly, molding of the sheet 50, which is a thermoplastic resin, may be facilitated by contact between the upper and lower surfaces of the first heating jig 142 and the second heating jig 144.

The molding module 150 may be disposed behind the heating module 140 . The molding module 150 and the heating module 140 may be disposed relatively closer than the distance between other components. For example, the distance between the forming module 150 and the heating module 140, the distance between the forming module 150 and the alignment module 160, or the heating module 140 and the first transfer module 130 ) can be shorter than the distance between them.

The molding module 150 is for forming the protrusions and the grooves 24 on the surface of the sheet 50 heated through the heating module 140, and includes a first molding jig 152 and a second molding A jig 155 may be included. As described above, the formation of the protruding portion and the groove 24 by the molding module 150 may be more easily performed by heating the sheet 50 by the heating module 140 .

As shown in FIG. 7 , a protrusion area 153 protruding downward from other areas may be formed on the lower surface of the first molding jig 152 . A groove area 156 concave downward than other areas may be formed on the upper surface of the second molding jig 155 . Therefore, when the sheet 50 is in contact with the lower surface of the first molding jig 152 and the upper surface of the second molding jig 155, the upper surface of the sheet 50 has the protruding region 153. A groove 24 may be formed, and the protruding portion may be formed on a lower surface of the sheet 50 through the groove area 156 . At least a portion of the protrusion area 153 may be coupled to the groove area 156 .

On the other hand, on the lower surface of the first molding jig 152 according to the present embodiment, first unit jigs arranged in two rows of two protruding regions 153 may be disposed. The first unit jig may be provided in plurality and disposed next to each other in front and rear on the lower surface of the first molding jig 152 . A second unit jig in which two groove areas 156 are arranged in two rows may be disposed on the upper surface of the second forming jig 155 . The second unit jig may be provided in plurality and disposed next to each other in front and rear on the upper surface of the second molding jig 155 . The two first unit jigs and the two second unit jigs may face each other in a vertical direction. Therefore, when the sheet 50 contacts the lower surface of the first molding jig 152 and the upper surface of the second molding jig 155, a total of eight protrusions and grooves 24 are formed on the sheet 50. It can be. Accordingly, the sheet 50 passing through the forming module 150 may have a plurality of protrusions and grooves 24 disposed in the longitudinal direction in two rows, respectively, as shown in FIG. 4 . A molded body in which the plurality of protrusions and the plurality of grooves 24 are arranged in two rows passing through the molding module 150 may be defined as the molding sheet 30 .

According to this embodiment, since two protrusions and two grooves 24 are formed on the surface of the sheet 50 in a direction Y perpendicular to the moving direction X of the sheet 50 based on FIG. 4, Sagging of the sheet due to the formation of a plurality of protrusions and grooves 24 can be prevented, and the sheet 50 is molded in a state in which both ends are fixed by the first transfer module 130 and the alignment module 160. Therefore, there is an advantage in that the protrusion and the groove 24 can be formed more accurately in the setting area.

Meanwhile, the first molding jig 152 and the second molding jig 155 may be interconnected through a plurality of support shafts 157, and the first molding jig 152 and the second molding jig 155 ) may be formed with holes through which the plurality of support shafts 157 pass. The first forming jig 152 and the second forming jig 155 may each slide in an up and down direction along the support shaft 157 .

An elastic part 158 may be disposed in a region disposed between the first forming jig 152 and the second forming jig 155 among the plurality of support shafts 157 . The elastic part 158 may be a spring. Accordingly, in a state where the first molding jig 152 and the second molding jig 155 are close to each other, the tensile force of the elastic part 158 causes the first molding jig 152 and the second molding jig ( 155) may be distant.

The first molding jig 152 and the second molding jig 155 are also connected to a pneumatic cylinder, respectively, so that they can be moved in the vertical direction.

Meanwhile, the molding module 150 may also include a heat source, and accordingly, the surface of the first molding jig 152 and the surface of the second molding jig 155 in contact with the sheet 50 are 125°C to 175°C.

The alignment module 160 may be disposed behind the molding module 150 . The alignment module 160 may support the sheet 50 between the first transfer module 130 and the second transfer module 170 . The alignment module 160 may be disposed substantially at the center of the manufacturing route to support the sheet 50, thereby preventing the sheet 50 from sagging.

The alignment module 160 may include a guide body 162 and a plurality of guide parts 166 protruding upward from the upper surface of the guide body 162 . A groove for coupling the seat 50 may be formed on the guide body 162 . The groove may be formed to be more concave downward than other regions. Two guide parts 166 may be provided and disposed at one end and the other end of the guide body 162, respectively. A through hole through which the sheet 50 passes may be formed in the guide part 166 . Therefore, when the sheet 50 passes through the alignment module 160, it is supported by the through-holes of the plurality of guide parts 166 and the grooves of the guide body 162, so that the sheet 50 Sagging can be prevented.

The through holes of the plurality of guide parts 166 may be disposed to face each other based on the movement direction of the sheet 50 . Through-holes of the plurality of guide parts 166 may be arranged to overlap each other in a horizontal direction.

The second transfer module 170 may be disposed behind the alignment module 160 . The second transfer module 170 may include a movable frame 171 , a fixed frame 176 and a second guide rail 179 .

As shown in FIG. 8 , the second guide rail 179 may be disposed on a side surface of the main body 110 . The moving frame 171 may slide along the second guide rail 179 . A second moving jig 172 and a second fixed jig (not shown) may be disposed inside the moving frame 171 . The second moving jig 172 moves in a vertical direction, and may come closer to or farther from the second fixed jig. A space through which the sheet 50 passes is formed between the second moving jig 172 and the second fixing jig, and the space can be opened and closed according to the movement of the second moving jig 172 .

The fixed frame 176 is disposed at the rear of the moving frame 171 and may be fixed to an end of the second guide rail 179 or a side surface of the main body 110 . A third moving jig 177 and a third fixed jig (not shown) may be disposed inside the fixing frame 176 . The third moving jig 177 moves in a vertical direction, and may come closer to or farther from the third fixed jig. A space through which the sheet 50 passes is formed between the third moving jig 177 and the third fixing jig, and the space can be opened and closed according to the movement of the third moving jig 177 .

The moving frame 171 may be disposed in a first area positioned relatively far from the fixed frame 176 and in a second area positioned relatively close to the fixed frame 176 . The moving frame 171 may reciprocate between the first area and the second area. When the movable frame 171 is disposed in the first area, the second movable jig 172 may move downward and press the upper surface of the sheet 50 . Accordingly, when the moving frame 171 moves, the sheet 50 can move together. When the movable frame 171 moves, the third movable jig 177 in the fixed frame 176 may be positioned at an upper part spaced apart from the third fixed jig. Accordingly, the seat 50 may move to the rear of the fixed frame 176 together with the movement of the moving frame 171 .

When the movable frame 171 is disposed in the second area, the second movable jig 172 moves upward and can be separated from the second fixed jig. And, the moving frame 171 can be moved to the first area. At this time, the third moving jig 177 in the fixing frame 176 may move downward to press the upper surface of the sheet 50 and may be in contact with the upper surface of the sheet 50 . That is, positions of the second moving jig 172 of the moving frame 171 and the third moving jig 177 of the fixed frame 176 may be opposite to each other.

The second roller module 180 may be disposed behind the second transfer module 170 . The second roller module 180 may include a plurality of rollers. The plurality of rollers may include a fifth roller 181 , a sixth roller 185 , a seventh roller 186 , an eighth roller 183 , and a ninth roller 188 . The fifth roller 181 to the ninth roller 188 may be sequentially arranged along the moving direction of the sheet 50 . Some of the fifth rollers 181 to 9th rollers 188 may be disposed to support the lower surface of the sheet 50, and other portions may be disposed to support the upper surface of the sheet 50. The fifth roller 181 to the ninth roller 188 rotate about a rotation axis according to the movement of the sheet 50, and may support the movement of the sheet 50. The apparatus 100 for manufacturing an insulating plate for a battery cover of an electric vehicle may further include an actuator (not shown) for operating the rotating shaft.

The cutting module 190 may be disposed behind the second roller module 180 . The cutting module 190 may be disposed so as not to overlap with the main body 110 in a horizontal direction. The cutting module 190 may cut the forming sheet 30 (see FIG. 4 ) formed through the forming module 150 . The cutting module 190 moves in a vertical direction and may include a blade (not shown) for cutting the molding sheet 30 . The forming sheet 30 may be cut in a direction perpendicular to the conveying direction by the blade. The length of the insulating sheet 20 formed by cutting may be the length of the insulating sheet 20 shown in FIGS. 1 to 3 .

The insulating sheet 20 cut through the cutting module 190 may be discharged to the outside through the discharge tray 199 .

Meanwhile, in this embodiment, as described above, two rows of protrusions and grooves 24 in the sheet 50 may be formed through the forming module 150 . Accordingly, the cutting module 190 includes a first blade for cutting the forming sheet 30 in a direction perpendicular to the transport direction, and a second blade for cutting the sheet cut by the first blade in the transport direction. can include Through the second plate, between the two rows of protrusion formation regions and the two rows of groove 24 formation regions may be cut.

The first blade and the second blade may cut the molding sheet 30 through vertical movement within the cutting module 190 . The cutting module 190 may be divided into a first cutting module and a second cutting module. In this case, the first cutting module cuts the forming sheet 30 in a direction perpendicular to the conveying direction through the first blade. The second cutting module may cut the sheet cut from the first cutting module in the conveying direction through the second blade.

9 is a flowchart of a method of manufacturing an insulating plate for a battery cover of an electric vehicle according to an embodiment of the present invention.

5 and 9, the manufacturing method of the insulating plate for a battery cover of an electric vehicle according to this embodiment includes the step of transferring the sheet 50 by the first transfer module 130 (S10). can do. The sheet wound around the first roller module 120 by the first transport module 130 may be transported to the rear of the first transport module 130 together with rotation of a plurality of rollers.

Next, a step ( S20 ) of heating the surface of the sheet 50 by the heating module 140 disposed at the rear of the first transfer module 130 may be included. Since the lower surface of the first heating jig 142 and the second heating jig 144 each have a temperature of 125 ° C to 175 ° C, the sheet 50 is heated by contact with the sheet 50, which is a thermoplastic resin. Molding can be facilitated.

Next, the forming module 150 may include forming protrusions and grooves on the surface of the sheet 50 (S30). In this step, according to the vertical movement of the first molding jig 152 and the second molding jig 155, grooves 24 and protrusions may be formed on the upper and lower surfaces of the sheet 50, respectively.

Next, the forming sheet 30 formed from the forming module 150 is transferred backward through the alignment module 160, the second transfer module 170 and the second roller module 180. can include In this case, the central region of the forming sheet 30 is supported in the device by a plurality of through holes in the alignment module 160 and grooves on the guide body 162, and in the second transfer module 170. According to the operation between the moving frame 171 and the fixed frame 176, the second roller module 180 can move it backward while being supported.

Next, steps S50 and S60 of cutting the molding sheet 30 transferred from the second transfer module 170 through the cutting module 190 may be included. In this case, in the cutting steps (S50 and S60), the forming sheet 30 is cut in a direction perpendicular to the transport direction through the first cutting module including the first blade (S50), and the second blade It may include a step (S60) of cutting the sheet cut from the first cutting module in the conveying direction through the second cutting module including a.

According to the structure as described above, there is an advantage that the shape processing of the sheet can be more easily performed by the heating module.

In addition, since a plurality of modules are disposed along the transport direction of the sheet, there is an advantage in that the insulation sheet can be manufactured continuously.

In addition, there is an advantage in that the defect rate in manufacturing the insulating sheet can be significantly reduced by a structure for preventing sagging of the sheet through a plurality of transport modules, roller modules, and alignment modules, and a molding jig structure in which protrusions and grooves are formed in two rows. .

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as 'include', 'comprise' or 'having' described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. 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 a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (8)

(a) transferring the sheet backward from the first transfer module;
(b) heating the surface of the sheet through a heating module;
(c) molding the surface of the sheet heated in step (b) by a molding module; and
(d) a cutting module cutting the molding sheet whose surface is molded in step (c);
The heating module includes a plurality of heating jigs in contact with the upper and lower surfaces of the sheet,
The molding module includes a first molding jig moving in a vertical direction and a second molding jig disposed under the first molding jig and moving in a vertical direction,
A protrusion area protruding downward from other areas is formed on the lower surface of the first molding jig,
A groove area concave downward than other areas is formed on the upper surface of the second molding jig,
The distance between the molding module and the heating module is shorter than the distance between the heating module and the first transfer module,
The method of manufacturing an insulating plate for a battery cover of an electric vehicle in which the sheet is a thermoplastic resin.
According to claim 1,
The method of manufacturing an insulating plate for a battery cover of an electric vehicle, wherein the temperature of the heating jig for heating the sheet in step (b) is 125 ° C to 175 ° C.
According to claim 2,
Including the step of aligning the forming sheet from the alignment module before the step (d),
The alignment module is a method of manufacturing an insulating plate for a battery cover of an electric vehicle disposed in the center based on the transport path of the sheet.
delete According to claim 1,
In step (c), the sheet is secondarily heated through the forming module.
According to claim 1,
In step (d), the cutting module includes a blade that moves in the vertical direction,
The method of manufacturing an insulating plate for a battery cover of an electric vehicle in which the blade cuts the molding sheet in a direction perpendicular to the transport direction of the molding sheet.
According to claim 1,
The first molding jig and the second molding jig each include a unit jig in which two protrusion regions and two groove regions are arranged in two rows,
Protrusions and grooves formed on the surface of the molding sheet are formed in two rows in a direction corresponding to the transport direction of the sheet, respectively.
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