Electric window sunshades for vehicles

Abstract

The present invention provides a power window sunshade device for a vehicle, configured to receive power directly from an electric motor. The power window sunshade device for a vehicle according to an embodiment of the present disclosure includes: a sunshade module configured to automatically unwind or wind up by a driving force to move relative to the vehicle window glass; and a drive module that provides driving force to the sunshade module by operating a cable wound around at least one roller driven by the electric motor.

Description

Technical Field

[0001] The present disclosure generally relates to a power window sunshade apparatus for a vehicle, and more particularly, to a direct-drive power window sunshade apparatus for a vehicle, the power window sunshade apparatus being configured to receive power directly from an electric motor. Background Art

[0002] Recently, a vehicle window sunshade device has been provided for blocking sunlight from entering the vehicle interior through a window glass provided on a vehicle door.

[0003] By providing such a window sunshade, it is possible to improve comfort for the occupants and prevent the temperature inside the vehicle from increasing excessively.

[0004] Now briefly describing the structure of the related art vehicle window sunshade device, a roller with a sunshade wound thereon is provided between the inner panel of the vehicle door and the door trim, and a sunshade rod at the top of the sunshade is supported on the lower edge of the window frame.

[0005] Therefore, when the sunshade is to be used, the knob provided on the sunshade rod is pulled upwards so that the sunshade is extended while being unwound from the reel, and then the knob provided on the sunshade rod of the extended sunshade is hooked to the upper edge of the window frame to fix the sunshade in place.

[0006] In the related art, the occupant manually operates the sunshade in this manner, but in recent years, there has been a trend to use a power window sunshade device in which the sunshade can be easily extended and retracted in response to remote operation by the driver from the driver's seat or the occupant from the passenger seat.

[0007] A typical power window sunshade device is configured such that a motor drives a worm gear, rotational motion of the worm gear is converted into linear motion through a flexible wire, and the driving force converted into the linear motion is used to move a sunshade rod of a sunshade.

[0008] However, in this case, the distance between the motor and the sunshade rod, which is the object being controlled, is long, and due to this fact, the path of the flexible wire is extended, which inevitably involves the generation of high friction. In addition, due to the high friction generated during the operation of the sunshade, the operating load of the motor increases, resulting in increased malfunctions and noise generation, thus causing problems.

[0009] Therefore, in order to solve this problem, various types of power window sunshade devices have been studied.

[0010] The foregoing content is only intended to help understanding the background of the present disclosure, and does not mean that the present disclosure falls within the scope of the relevant fields known to those skilled in the art. Summary of the Invention

[0011] Therefore, in view of the above-mentioned problems arising in the related art, the present disclosure has been made, and an object of the present disclosure is to provide a direct-drive electric window sunshade device for a vehicle, in which a sunshade rod is moved by using multiple drums and pulleys that receive power directly from an electric motor.

[0012] In order to achieve the above-mentioned purpose, according to one aspect of the present disclosure, an electric window sunshade device for a vehicle is provided, which includes: a sunshade module, configured to automatically unwind or wind up by a driving force to move relative to the vehicle window glass; and a drive module, configured to provide a driving force to the sunshade module by operating a cable wound on at least one roller, and the at least one roller is directly driven in response to the operation of the electric motor.

[0013] The drive module may include: an electric motor arranged inside the vehicle door trim; at least one roller that can rotate by being connected to the electric motor; at least one cable, one side of which is wound around the outer circumferential surface of the roller so that the cable operates the sunshade module while moving as the roller rotates; and at least one pulley, a second side of the cable is wound around the pulley, the pulley being configured to determine a moving path of the cable.

[0014] The driving module may include: a first roller and a second roller, which are capable of rotating by being directly connected to a rotating shaft of the motor; a first cable, a first side of which is wound around the outer circumferential surface of the first roller, so that the first cable operates the sunshade module while moving as the first roller rotates; at least one first pulley, on which the second side of the first cable is wound, and the first pulley is configured to determine the moving path of the first cable; a second cable, a first side of which is wound around the outer circumferential surface of the second roller, so that the second cable operates the sunshade module while moving as the second roller rotates; and at least one second pulley, on which the second side of the second cable is wound, and the second pulley is configured to determine the moving path of the second cable.

[0015] The sunshade module may include: a main sunshade configured to be unwound or wound to move relative to the side window glass; a main sunshade reel disposed inside the door trim and connected to the first end of the main sunshade to wind or unwound the main sunshade; a main sunshade rod connected to the second end of the main sunshade; a pair of main rails vertically arranged at corresponding positions spaced apart from opposite sides of the main sunshade; and a pair of main sliding members respectively fixed to opposite ends of the main sunshade rod and configured to unwound or wind the main sunshade from the main sunshade reel while moving in their respective vertical directions along the pair of main rails.

[0016] The cable may include a plurality of cables, and each of the pair of main sliders may be fixed to an associated one of the plurality of cables to integrally move together with the movement of the cable.

[0017] The main sunshade reel may be provided with a main spring which provides a restoring force to the main sunshade after rotation.

[0018] The sunshade module may also include: an auxiliary sunshade configured to unwind or wind up to move relative to the triangular window glass; an auxiliary sunshade roller disposed inside the window frame adjacent to the triangular window glass and connected to the first end of the auxiliary sunshade to wind up or unwind the auxiliary sunshade; an auxiliary sunshade rod connected to the second end of the auxiliary sunshade; a secondary guide rail disposed inside the door trim to be horizontally disposed at a position spaced apart from the lower side of the auxiliary sunshade; and a secondary sliding member fixed to one end of the auxiliary sunshade rod and configured to unwind or wind up the auxiliary sunshade from the auxiliary sunshade roller while moving in a horizontal direction along the secondary guide rail.

[0019] The cable may include a plurality of cables, a torpedo may be mounted on a selected cable selected from the cables so that the torpedo moves integrally with the movement of the selected cable, and the sub-slider may be mounted so that the selected cable passes through the sub-slider so that the sub-slider moves with the movement of the torpedo while in contact with the torpedo.

[0020] The torpedo may be disposed in an installed position in which the secondary slider is in a position in which the secondary sunshade is fully extended when the primary sunshade is fully extended.

[0021] The auxiliary sunshade reel may be provided with a secondary spring which provides a restoring force to the auxiliary sunshade reel after rotation.

[0022] The rotation shaft of the main sunshade roller may be rotated by being directly connected to the rotation shaft of the motor, and the drum may be rotated together with the rotation shaft of the main sunshade roller.

[0023] The roller may include a plurality of rollers, and a diameter of each roller may be determined according to a length of an associated one of a pair of main rails.

[0024] The driving module may further include: a third roller, which is capable of rotating by being directly connected to a rotating shaft of the motor; a third cable, to which the secondary slide is fixed, a first side of the third cable being wound on an outer circumferential surface of the third roller so that the third cable moves the secondary slide while moving as the third roller rotates; and at least one third pulley, on which a second side of the third cable is wound, the third pulley being configured to determine a moving path of the third cable.

[0025] According to an embodiment of the present disclosure, by using a plurality of rollers and pulleys directly driven in response to the operation of the motor, the length of a path for transmitting the driving force of the motor to the sunshade rod can be minimized, thereby reducing the load on the transmission path of the driving force.

[0026] The sunshade module may be configured to block light incident on the interior of the vehicle through the window glass while being automatically unwound or wound by a driving force.

[0027] Therefore, it is possible to minimize friction generated during operation of the sunshade, thereby obtaining an effect of suppressing malfunction and noise generation.

[0028] Furthermore, by driving a plurality of rollers and pulleys with a single motor by means of a direct drive method, a structure can be achieved in which a main sunshade applied to a side window glass can be extended together with a sub-sunshade applied to a quarter window glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings, in which:

[0030] Figure 1 is a view showing a power window sunshade device for a vehicle according to an embodiment of the present disclosure;

[0031] Figure 2 and Figure 3 is a view showing a power window sunshade device for a vehicle according to other embodiments of the present disclosure; and

[0032] Figures 4A to 4D 1 is a view illustrating an operating state of a power window sunshade apparatus for a vehicle according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Various changes may be made to the following embodiments, and the scope of the present disclosure is not limited to the following embodiments. The embodiments of the present disclosure are provided to fully disclose the present disclosure and to help those of ordinary skill in the art to best understand the present disclosure. In all drawings, the same reference numerals represent the same or similar parts.

[0034] Figure 1 is a view showing a power window sunshade device for a vehicle according to an embodiment of the present disclosure, Figure 2 and Figure 3 are views illustrating a power window sunshade apparatus for a vehicle according to other embodiments of the present disclosure.

[0035] like Figure 1As shown, the electric window sunshade device for a vehicle according to an embodiment of the present disclosure includes a sunshade module 100, which blocks light from entering the interior of the vehicle through the window glass and is automatically unwound or wound by a driving force; and a driving module 200, which provides a driving force to the sunshade module 100 through the operation of a cable wound on at least one roller, and the at least one roller is directly driven in response to the operation of the motor 201.

[0036] The sunshade module 100 is a module extended to block light incident on the vehicle interior through the side window glass and the quarter window glass of the vehicle, and can be roughly divided into a first sunshade module provided for the side window glass and a second sunshade module provided for the quarter window glass.

[0037] The first sunshade module includes: a main sunshade 110, which blocks light incident through the side window glass; a main sunshade reel 111, which is arranged inside the door trim and connected to the first end of the main sunshade 110 to wind or unwind the main sunshade 110; a main sunshade rod 113, which is connected to the second end of the main sunshade 110; a pair of main rails 115, which are vertically arranged at corresponding positions separated from the opposite sides of the main sunshade 110; and a pair of main sliding members 114, which are respectively fixed to the opposite ends of the main sunshade rod 113, and unwind or wind the main sunshade 110 from the main sunshade reel 111 while moving in their respective vertical directions along the pair of main rails 115.

[0038] Therefore, the first sunshade module is configured such that the main sunshade 110 is extended or retracted in a vertical direction on the side window glass.

[0039] The main sunshade 110 is a mechanism manufactured to conform to the shape of a side window glass to directly block light, and may be made of various materials that can be implemented as a sunshade.

[0040] The main sunshade 110 is wound on the main sunshade reel 111 such that the main sunshade 110 extends from the main sunshade reel 111 while being unwound from the wound state and retracts onto the main sunshade reel 111 in response to a winding operation of the main sunshade reel 111 .

[0041] The main sunshade reel 111 is a mechanism for winding or unwinding the main sunshade 110 , and is horizontally installed inside the door trim.

[0042] Herein, the main sunshade reel 111 is provided with a main spring 112 that provides a restoring force to the main sunshade 110, so that the main sunshade 110 that has been extended during unwinding is wound onto the main sunshade reel 111 during retraction by the restoring force provided by the main spring 112. During the winding operation of the main sunshade reel 111, the main spring 112 is deformed by the driving force of the driving module 200 and is restored to its original state by releasing the driving force of the driving module 200, thereby providing a restoring force to the main sunshade 110.

[0043] The main sunshade rod 113 is connected to the upper end of the main sunshade member 110 to integrally move together with the movement of the main slider 114 , such that the main sunshade member 110 is extended or retracted together with the movement of the main sunshade rod 113 .

[0044] The pair of main rails 115 are disposed inside the window frame and vertically disposed at corresponding positions spaced apart from opposite sides of the main sunshade 110 .

[0045] The pair of main sliders 114 are respectively mounted on the pair of main rails 115 to slide in corresponding vertical directions along the main rails 115. Here, the opposite ends of the main sunshade rod 113 are respectively fixed to the pair of main rails 115, so that the main sunshade rod 113 moves integrally with the vertical movement of the main sliders 114. Therefore, when the main sunshade rod 113 moves in the vertical direction, the main sunshade member 110 extends or retracts.

[0046] The second sunshade module includes: an auxiliary sunshade 120, which blocks light incident through the triangular window glass; an auxiliary sunshade roller 121, which is arranged inside the window frame adjacent to the triangular window glass and is connected to the first end of the auxiliary sunshade 120 to wind or unwind the auxiliary sunshade 120; an auxiliary sunshade rod 123, which is connected to the second end of the auxiliary sunshade 120; a secondary guide rail 125, which is arranged inside the door trim and is horizontally arranged at a position spaced apart from the lower side of the auxiliary sunshade 120; and an auxiliary sliding member 124, which is fixed to one end of the auxiliary sunshade rod 123 to unwind or wind the auxiliary sunshade 120 from the auxiliary sunshade roller 121 while moving in a horizontal direction along the secondary guide rail 125.

[0047] Therefore, the second sunshade module is configured such that the auxiliary sunshade 120 is extended or retracted in a horizontal direction on the triangular window glass.

[0048] The auxiliary sunshade 120 is a mechanism manufactured to conform to the shape of the triangular window glass to directly block light, and may be made of various materials that can be implemented as a sunshade.

[0049] The sub-sunshade 120 is wound on the sub-sunshade reel 121 such that the sub-sunshade 120 extends from the sub-sunshade reel 121 while being unwound from the wound state and retracts onto the sub-sunshade reel 121 in response to a winding operation of the sub-sunshade reel 121 .

[0050] The auxiliary sunshade reel 121 is a mechanism for winding or unwinding the auxiliary sunshade 120 , and is vertically provided inside the window frame between the side window glass and the quarter window glass.

[0051] Herein, the auxiliary sunshade reel 121 is provided with a secondary spring 122 that provides a restoring force to the auxiliary sunshade 120, so that during the retraction of the auxiliary sunshade 120 that has been extended during unwinding, the auxiliary sunshade 120 is wound around the auxiliary sunshade reel 121 by the restoring force provided by the secondary spring 122. During the winding operation of the auxiliary sunshade reel 121, the secondary spring 122 is deformed by the driving force of the driving module 200 and is restored to its original state by releasing the driving force of the driving module 200, thereby providing a restoring force to the auxiliary sunshade 120.

[0052] The auxiliary sunshade rod 123 is connected to one end of the auxiliary sunshade 120 to integrally move together with the movement of the auxiliary slider 124 , such that the auxiliary sunshade 120 is extended or retracted together with the movement of the auxiliary sunshade rod 123 .

[0053] The auxiliary guide rail 125 is horizontally disposed inside the door trim.

[0054] The auxiliary slider 124 is mounted on the auxiliary guide rail 125 so as to slide horizontally along the auxiliary guide rail 125. Here, one end of the auxiliary sunshade rod 123 is fixed to the auxiliary guide rail 125, so that the auxiliary sunshade rod 123 moves integrally with the horizontal movement of the auxiliary slider 124. Therefore, when the auxiliary sunshade rod 123 moves horizontally, the auxiliary sunshade 120 extends or retracts.

[0055] The driving module 200 is a module that provides driving force to the above-mentioned first sunshade module and second sunshade module, and provides driving force to the first sunshade module and second sunshade module through the operation of multiple cables wound on multiple rollers and pulleys, and the multiple rollers and pulleys are directly driven in response to the operation of the motor 201.

[0056] The driving module 200 includes: a motor 201, which is arranged inside the door trim; a first roller 210 and a second roller 220, which rotate by being directly connected to a rotation shaft of the motor 201; a first cable 211, to which any one of the main sliders 114 is fixed, and the first cable 211 is arranged so that its first side is wound around the outer peripheral surface of the first roller 210, so that the first cable 211 moves the main slider 114 while moving together with the rotation of the first roller 210; at least one or more first pulleys 212 and 213, which are arranged so that the first side of the first cable 211 is fixed to the main slider 114; The two sides are wound thereon, so that the first pulleys 212 and 213 determine the moving path of the first cable 211; the second cable 221, the remaining one of the main sliders 114 is fixed to the second cable 221, and the first side of the second cable 221 is wound on the outer peripheral surface of the second roller 220, so that the second cable 221 moves together with the rotation of the second roller 220 while moving the main slider 114; and at least one second pulley 222, which is configured to have the second side of the second cable 221 wound thereon, so that the second pulley 222 determines the moving path of the second cable 221.

[0057] Therefore, any one of the main sliders 114 moves by using the first roller 210 , the first cable 211 , and the first pulleys 212 and 213 , while the remaining one of the main sliders 114 moves by using the second roller 220 , the second cable 221 , and the second pulley 222 .

[0058] Here, the diameters of the first roller 210 and the second roller 220 are determined according to the lengths of the corresponding pair of main rails 115. Therefore, it is preferable to appropriately determine the diameters of the first roller 210 and the second roller 220 so that when the main sunshade 110 is fully extended, the pair of main sliders 114 simultaneously reach the highest points on the pair of main rails 115.

[0059] Furthermore, in this embodiment, the first roller 210 and the second roller 220 are sequentially connected to the rotation shaft of the motor 201 so as to rotate integrally with each other. The rotation shaft of the motor 201 is directly connected to the rotation shaft of the main sunshade reel 111, so that the rotation shaft of the main sunshade reel 111 rotates in response to the operation of the motor 201. Therefore, in response to the operation of the motor 201, the rotation shafts of the first roller 210, the second roller 220, and the main sunshade reel 111 rotate together.

[0060] Meanwhile, the positions of the first roller 210 and the second roller 220 can be selectively changed and implemented. Figure 2As shown, the second drum 220, the rotation shaft of the main sunshade reel 111, and the first drum 210 may be sequentially connected to the rotation shaft of the motor 201 to integrally rotate together with each other.

[0061] The auxiliary slider 124 may move along with the movement of the first cable 211 .

[0062] For this reason, Figure 1 As shown, a torpedo 214 is mounted on the first cable 211, so that the torpedo 214 moves integrally with the movement of the first cable 211. In addition, the sub-slider 124 is mounted so that the first cable 211 passes through the sub-slider 124, so that the sub-slider 124 moves with the movement of the torpedo 214 while in contact with the torpedo 214.

[0063] Here, the time during which the secondary slider 124 moves can be limited depending on the installation position of the torpedo 214. Therefore, the time during which the secondary visor 120 extends during the extension of the main visor 110 can be determined. Furthermore, the maximum travel path along which the secondary slider 124 moves can be limited depending on the installation position of the torpedo 214.

[0064] For example, preferably, the mounting position of the torpedo 214 is determined to be a point at which the auxiliary slider 124 is located at the position of the auxiliary sunshade 120 when the main sunshade 110 is fully extended.

[0065] Meanwhile, although in the above-described embodiment, the second sunshade module is operated together with the first cable, the roller and the pulley may be arranged separately from the first cable to operate the second sunshade module.

[0066] For example, in a configuration such as Figure 3 In the illustrated driving module 200, the driving module 200 may include: a third drum 230 that rotates by being directly connected to a rotating shaft of the motor 201; a third cable 231 to which the auxiliary slider 124 is fixed, and the third cable 231 is arranged such that a first side thereof is wound around the outer peripheral surface of the third drum 230 so that the third cable 231 moves the auxiliary slider 124 while moving along with the rotation of the third drum 230; and at least one or more third pulleys 232 and 233 arranged such that a second side of the third cable 231 is wound therearound so that the third pulleys 232 and 233 determine a moving path of the third cable 231. In this case, it is not necessary to install the torpedo 214 on the third cable 231 as in the above-described embodiment.

[0067] Therefore, in response to the operation of the motor 201 , the third roller 230 rotates to move the third cable 231 , thereby causing the sub-slider 124 to integrally move along with the movement of the third cable 231 to extend the sub-sunshade 120 .

[0068] In this case, preferably, the diameter of the third roller 230 is determined according to the length of the auxiliary guide rail 125 .

[0069] Next, an operating state of the power window shade device for a vehicle according to the embodiment of the present disclosure configured as described above will be described with reference to the drawings.

[0070] Figures 4A to 4D 1 is a view illustrating an operating state of a power window sunshade apparatus for a vehicle according to an embodiment of the present disclosure.

[0071] First, if Figure 4A As shown, when the motor 201 is put into operation, the rotation shaft of the motor 201 rotates, thereby rotating the first drum 210 and the second drum 220 .

[0072] Therefore, the first and second cables 211 and 221 wound on the first and second drums 210 and 220 move as the first and second drums 210 and 220 rotate while rotating between the first and second pulleys 212 and 213 and the second pulley 222 .

[0073] When the first cable 211 and the second cable 221 move in this manner, the pair of main sliders 114 move upward along the main rail 115, thereby causing the main sunshade rod 113 fixed to the main slider 114 to move upward, and as a result, the main sunshade 110 begins its extension movement while being unwound from the main sunshade reel 111. At this time, the torpedo 214 provided at the first cable 211 moves from a position away from the sub-slider 124, and thus does not push the sub-slider 124, and the first cable 211 is provided so as to pass through the sub-slider 124, so that the sub-slider 124 is not operated.

[0074] When the motor 201 continues to operate, as shown in FIG. Figure 4B As shown, the torpedo 214 moves to a point where it contacts the auxiliary slider 124, and from this point on, the torpedo 214 pushes the auxiliary slider 124, causing the auxiliary slider 124 to move horizontally. As a result, the auxiliary sunshade rod 123 fixed to the auxiliary slider 124 moves horizontally, and as a result, the auxiliary sunshade 120 begins to extend while being unwound from the auxiliary sunshade reel 121.

[0075] Then, when the motor 201 continues to operate, as shown in FIG. Figure 4CAs shown, as the main slider 114 continues to move, the main sunshade 110 extends, and at the same time, as the torpedo 214 continues to push the secondary slider 124, the secondary sunshade 120 also extends.

[0076] Then, when the motor 201 continues to operate and the main slider 114 and the sub-slider 124 reach their respective positions, Figure 4D At the maximum movement point shown, the main sunshade 110 and the auxiliary sunshade 120 are extended to a fully extended state, and at this time, the motor 201 stops operating.

[0077] In this state, to retract the main shade 110 and auxiliary shade 120, the motor 201 rotates in opposite directions, moving the first cable 211 and the second cable 221 in opposite directions. This causes the main slider 114 to move downward, retracting the main shade 110. At this point, the main shade 110 is wound around the main shade reel 111 due to the restoring force of the main spring 112 provided therein.

[0078] When the torpedo-shaped member 214 also moves in the opposite direction, thereby releasing the force applied by the torpedo-shaped member 214 to push the sub-slider 124, the sub-sunshade 120 is wound onto the sub-sunshade reel 121 by the restoring force of the sub-spring 122 provided in the sub-sunshade reel 121, and the sub-slider 124 also moves as a whole in the opposite direction along with the movement of the torpedo-shaped member 214 to return to its original position.

[0079] Next, an experiment was conducted to compare the operating noise level and operating current value of the electric window sunshade device according to the embodiment of the present disclosure (Example) with the operating noise level and operating current value of the electric window sunshade device of the flexible wire drive type according to the related art (Comparative Example), and the results are shown in Table 1 below.

[0080] The experiment was conducted by measuring the noise level and current value generated during extension and retraction of the sunshades while operating the Examples and Comparative Examples.

[0081] Table 1

[0082]

[0083] From the results in Table 1, it can be seen that the noise level in this embodiment is improved (reduced) by about 6 dB (based on the maximum value) as compared with the comparative embodiment.

[0084] It was also confirmed that the operating current value was reduced to approximately 1 / 7 in this embodiment as compared with the comparative embodiment.

[0085] Although exemplary embodiments have been described in the detailed description of the present disclosure, it should be understood that various modifications can be made without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined by the appended claims and their equivalents.

Claims

1. A power window sunshade device for a vehicle, the power window sunshade device comprising: a sunshade module configured to be automatically unwound or wound by a driving force to move relative to the vehicle window glass; and a driving module configured to provide the driving force to the sunshade module through operation of a cable wound on at least one drum driven by a motor; Wherein, the sunshade module includes: a main sunshade configured to unwind or wind up for movement relative to the side window glass; a secondary sunshade configured to be unwound or wound to move relative to the triangular window glass; and a secondary sliding member configured to unwind or reel in the secondary sunshade member; The driving module includes: at least one drum rotatable by being directly connected to a rotating shaft of the motor; and the cable, a first side of the cable being wound around an outer circumferential surface of the at least one drum so that the cable operates the main sunshade and the auxiliary sunshade while moving together with rotation of the at least one drum; wherein a torpedo-shaped member is mounted on the cable, and the torpedo-shaped member moves integrally with the movement of the cable, and The auxiliary slider is installed so that the cable passes through the auxiliary slider, so that the auxiliary slider moves together with the movement of the torpedo while in contact with the torpedo.

2. The electric window sunshade device according to claim 1, wherein: The driving module further includes: The electric motor is arranged inside the door trim; and at least one pulley on which the second side of the cable is wound, the pulley being configured to determine a path of travel of the cable.

3. The electric window sunshade device according to claim 2, wherein: The driving module includes: a first roller and a second roller, the first roller and the second roller being rotatable by being directly connected to a rotation shaft of the motor; a first cable having a first side wound around an outer circumferential surface of the first drum so that the first cable operates the sunshade module while moving along with the rotation of the first drum; at least one first pulley, the second side of the first cable being wound around the first pulley, the first pulley being configured to determine a path of movement of the first cable; a second cable having a first side wound around an outer circumferential surface of the second drum so that the second cable operates the sunshade module while moving along with rotation of the second drum; and at least one second pulley on which the second side of the second cable is wound, the second pulley being configured to determine a movement path of the second cable.

4. The electric window sunshade device according to claim 2, wherein: The sunshade module further includes: a main sunshade reel disposed inside the door trim and connected to a first end of the main sunshade for reeling or unreeling the main sunshade; a main sunshade rod connected to the second end of the main sunshade member; a pair of main rails vertically arranged at respective positions spaced apart from opposite sides of the main sunshade; and a pair of main sliders, respectively fixed to opposite ends of the main sunshade rod and configured to unwind or reel the main sunshade from the main sunshade reel while moving in respective vertical directions along the pair of main guide rails.

5. The electric window sunshade device according to claim 4, wherein: The cables include a plurality of cables, and each of the pair of main sliders is fixed to an associated one of the plurality of cables to integrally move together with movement of the cable.

6. The electric window sunshade device according to claim 4, wherein: The main sunshade reel is provided with a main spring, which provides a restoring force to the main sunshade after rotation.

7. The electric window sunshade device according to claim 4, wherein: The sunshade module further includes: an auxiliary sunshade winding shaft, disposed in a window frame adjacent to the triangular window glass and connected to a first end of the auxiliary sunshade for winding or unwinding the auxiliary sunshade; an auxiliary sunshade rod connected to the second end of the auxiliary sunshade member; a secondary guide rail provided inside the door trim so as to be horizontally disposed at a position spaced apart from a lower side of the secondary sunshade; and a secondary slider fixed to one end of the secondary sunshade rod and configured to unwind or wind the secondary sunshade from the secondary sunshade winding shaft while moving in a horizontal direction along the secondary guide rail.

8. The electric window sunshade device according to claim 1, wherein: The torpedo is disposed in an installation position in which, when the main sunshade is fully extended, the auxiliary slider is located in a position in which the auxiliary sunshade is fully extended.

9. The electric window sunshade device according to claim 7, wherein: The auxiliary sunshade reel is provided with an auxiliary spring which provides a restoring force to the auxiliary sunshade reel after rotation.

10. The electric window sunshade device according to claim 4, wherein: The rotation axis of the main sunshade roller is rotated by being directly connected to the rotation axis of the motor. And the drum rotates together with the rotation axis of the main sunshade roller.

11. The electric window sunshade device according to claim 4, wherein: The roller includes a plurality of rollers, and a diameter of each of the rollers is determined according to a length of an associated one of the pair of main rails.

12. The electric window sunshade device according to claim 7, wherein: The driving module further includes: a third roller rotatable by being directly connected to a rotation shaft of the motor; a third cable to which the auxiliary slider is fixed, a first side of the third cable being wound around an outer circumferential surface of the third drum so that the third cable moves the auxiliary slider while moving along with the rotation of the third drum; and at least one third pulley on which the second side of the third cable is wound, the third pulley being configured to determine a moving path of the third cable.

13. The electric window sunshade device according to claim 1, wherein: The sunshade module is configured to block light incident on the interior of the vehicle through the window glass while being automatically unwound or wound by the driving force.

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