Electric rolling screen device with dew condensation prevention function and electric blind device with dew condensation prevention function

Abstract

To prevent dew condensation from occurring in a controller unit that receives a command from a remote controller.SOLUTION: An electric rolling screen device with a dew condensation prevention function includes a roller pipe that winds or releases a rolling screen, a controller unit (140) that controls an operation of the roller pipe, and a cylindrical set bar (130) that accommodates the controller unit (140) in an inner space and is attached to an attachment target object, in which the set bar (130) has a fan (161) provided in the inner space, and gap prevention members (150 and 162) that close a gap between the fan (161) and the set bar (130) and a gap between the set bar and the attachment target object to form a flow path of ventilation by the fan (161).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an electric roller screen device with a dew condensation prevention function and an electric blind device with a dew condensation prevention function, and is applied to an electric roller screen device installed indoors, for example. [Background technology]

[0002] Currently, electric roller blind devices are generally used by being installed near windows to block sunlight in offices, homes, etc. This type of electric roller blind allows the movement of the roller blind to be remotely controlled by a remote control.

[0003] Such an electric roller blind device is equipped with a light-receiving unit that includes a light-receiving element that receives a signal from a remote control, and the light-receiving unit is designed to be detachable from the side bracket, making it possible to easily remove it from the light-receiving unit for maintenance when necessary (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-156029 A Summary of the Invention [Problem to be solved by the invention]

[0005] Unlike the motorized roller blind device of Patent Document 1, when a controller unit that receives a signal from a remote control and controls the movement of the roller blind is housed inside a cylindrical member that rolls up the roller blind or an angular tube member attached to a ceiling, etc., it is not exposed to external wind and condensation is likely to occur on the controller unit. Therefore, in an environment where condensation occurs on a window near the roller blind, condensation may also occur on the controller unit, causing electrical problems.

[0006] Therefore, the present invention has been made in consideration of the above problems, and one of its objectives is to provide an electric roller blind device with a condensation prevention function that can prevent condensation from occurring on a controller unit that receives commands from a remote control, and an electric blind device with a condensation prevention function. [Means for solving the problem]

[0007] The above object is achieved by the present invention, which is described below. That is, the motorized roller screen device with condensation prevention function of the present invention comprises a roller pipe for winding up or releasing the roller screen, a controller unit for controlling the operation of the roller pipe, and a set bar made of a cylindrical member that houses the controller unit in its inner space and is attached to an object to which the set bar is attached, the set bar having a fan provided in the inner space, and a gap prevention member for blocking the gap between the fan and the set bar, and the gap between the set bar and the object to which the set bar is attached, to form a flow path for ventilation by the fan.

[0008] In the present invention, the set bar preferably has an intake hole and an exhaust hole.

[0009] In the set bar of the present invention, it is preferable that the intake hole is formed on the indoor side and the exhaust hole is formed on the window surface side.

[0010] In the present invention, it is preferable that the set bar has, in addition to the fan, an exhaust fan provided in the inner space near the exhaust hole.

[0011] In the present invention, it is preferable that the controller unit includes a control device that controls the operation of the fan, and that the control device is made of a circuit board and operates or stops the fan depending on the value of a temperature sensor or a humidity sensor attached to the set bar near the circuit board, or the value of the temperature sensor and the value of the humidity sensor.

[0012] In the present invention, it is preferable that the controller unit is equipped with a control device that controls the operation of the fan, and that the control device is made of a circuit board and operates or stops the fan based on the value of an indoor side temperature sensor attached to the indoor side of the set bar near the circuit board and the value of a window side temperature sensor attached to the window side of the set bar.

[0013] In the present invention, there is provided an electric blind device with a condensation prevention function that houses a controller unit for operating the blinds in an inner space and comprises a cylindrical member that is attached to an object to which the blinds are attached, wherein the cylindrical member has a fan provided in the inner space, a gap between the fan and the cylindrical member, and a gap prevention member for sealing the gap between the cylindrical member and the object to which the blinds are attached to form a ventilation flow path by the fan.

[0014] In the present invention, the cylindrical member preferably has an intake hole and an exhaust hole.

[0015] In the cylindrical member of the present invention, it is preferable that the intake hole is formed on the indoor side, and the exhaust hole is formed on the window surface side.

[0016] In the present invention, it is preferable that the cylindrical member has, in addition to the fan, an exhaust fan provided in the inner space near the exhaust hole.

[0017] In the present invention, it is preferable that the controller unit includes a control device that controls the operation of the fan, and that the control device is made of a circuit board and operates or stops the fan depending on the value of a temperature sensor or a humidity sensor attached to the cylindrical member near the circuit board, or the value of the temperature sensor and the value of the humidity sensor.

[0018] In the present invention, it is preferable that the controller unit is equipped with a control device that controls the operation of the fan, and that the control device is made of a circuit board and operates or stops the fan based on the value of an indoor side temperature sensor attached to the indoor side of the cylindrical member near the circuit board and the value of a window surface side temperature sensor attached to the window surface side of the cylindrical member. Effect of the Invention

[0019] According to the present invention, it is possible to realize an electric roller screen device with a dew condensation prevention function and an electric blind device with a dew condensation prevention function that can prevent dew condensation from occurring on a controller unit that receives commands from a remote control. [Brief description of the drawings]

[0020] [Figure 1] 1A and 1B are a front view and a top view showing the overall configuration of an electric roller screen device with a dew condensation prevention function according to an embodiment of the present invention; [Diagram 2] 1A is a vertical cross-sectional view showing the configuration of an electric roller screen device with a condensation prevention function according to an embodiment of the present invention, and FIG. 1B is an exploded view seen from above. [Diagram 3] 1 is an exploded perspective view showing a configuration of a condensation prevention structure of an electric roller screen device with a condensation prevention function according to an embodiment of the present invention; [Figure 4] 1A is a front view, FIG. 1B is a side view, and FIG. 1C is a top view showing the configuration of an air intake hole of a dew condensation prevention structure according to an embodiment of the present invention. [Diagram 5] 1 is a block diagram showing a configuration of a control device for preventing condensation in an electric roller blind device with a condensation prevention function according to an embodiment of the present invention; [Figure 6] 5 is a flowchart showing a fan control process using a humidity sensor by the control device of the electric roller screen device with a condensation prevention function according to the embodiment of the present invention. [Figure 7] 5 is a flowchart showing a fan control process using a temperature sensor by the control device of the electric roller screen device with a condensation prevention function according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] (1) Overview of the embodiment First, an outline of the present invention corresponding to a representative embodiment of the present invention will be described. In the following description, as an example, reference numerals in the drawings corresponding to the components of the present invention are given in parentheses.

[0022] (1-1) The motorized roller screen device (100) with condensation prevention function of the present invention includes a roller pipe (110) that winds up or releases a roller screen (120), a controller unit (140) that controls the operation of the roller pipe (110), and a cylindrical set bar (130) that houses the controller unit (140) in its inner space and is attached to an object to which it is attached, and the set bar (130) has a fan (161) provided in the inner space, and gap prevention members (150, 162) that close the gap between the fan (161) and the set bar (130) and the gap between the set bar and the object to which it is attached to form a ventilation flow path by the fan (161).

[0023] (1-2) In the present invention, the set bar (130) has an intake hole (135) and an exhaust hole (137).

[0024] (1-3) In the set bar (130) of the present invention, the intake hole (135) is formed on the indoor side, and the exhaust hole (137) is formed on the window surface side.

[0025] (1-4) In the present invention, the set bar (130) has, in addition to the fan (161), an exhaust fan provided near the exhaust hole (137) in the inner space.

[0026] (1-5) In the present invention, the controller unit (140) includes a control device (200) that controls the operation of the fan (161). The control device (200) is made of a circuit board (170), and operates or stops the fan (161) in accordance with the value of a temperature sensor (210, 220) or the value of a humidity sensor (230) that is attached to the set bar (130) near the circuit board (170), or the value of the temperature sensor (210, 220) and the value of the humidity sensor (230).

[0027] (1-6) In the present invention, the controller unit (140) includes a control device (200) that controls the operation of the fan (161). The control device (200) includes a circuit board (170) and operates or stops the fan (161) based on a value of an indoor-side temperature sensor (210) that is attached to the indoor side of the set bar (130) near the circuit board (170) and a value of a window-side temperature sensor (220) that is attached to the window side of the set bar (130).

[0028] (1-7) In the present invention, an electric blind device with a condensation prevention function is provided, which houses a controller unit for operating the blind in an inner space and includes a tubular member (130) to be attached to an object to which the blind is to be attached, and the tubular member (130) has a fan (161) provided in the inner space, and gap prevention members (150, 162) for closing a gap between the fan (161) and the tubular member (130), and between the tubular member (130) and the object to which the blind is to be attached, to form a ventilation flow path by the fan (161).

[0029] (1-8) In the present invention, the tubular member (130) has an air intake hole (135) and an air exhaust hole (137).

[0030] (1-9) In the tubular member (130) of the present invention, the intake hole (135) is formed on the indoor side, and the exhaust hole (137) is formed on the window surface side.

[0031] (1-10) In the present invention, the tubular member (130) has, in addition to the fan (161), an exhaust fan provided near the exhaust hole (137) in the inner space.

[0032] (1-11) In the present invention, the controller unit (140) includes a control device (200) that controls the operation of the fan (161). The control device (200) is made of a circuit board (170) and operates or stops the fan (161) in accordance with the values ​​of temperature sensors (210, 220) or humidity sensor (230) attached to the cylindrical member (130) near the circuit board (170), or in accordance with the values ​​of the temperature sensors (210, 220) and humidity sensor (230).

[0033] (1-12) In the present invention, the controller unit (140) includes a control device (200) that controls the operation of the fan (161). The control device (200) includes a circuit board (170) and operates or stops the fan (161) based on a value of an indoor-side temperature sensor (210) attached to the indoor side of the tubular member (130) near the circuit board (170) and a value of a window-side temperature sensor (220) attached to the window side of the tubular member (130).

[0034] (2) Mode of carrying out the present invention Hereinafter, embodiments of the present invention will be described. The embodiments of the present invention are specific examples, and even if various modifications are made to the components, they are included in the scope of the present invention.

[0035] The configuration of an electric roller screen device with condensation prevention function according to an embodiment of the present invention will be specifically described with reference to the following Figures 1 to 7. Figure 1 is a front view (A) and a top view (B) showing the overall configuration of an electric roller screen device with condensation prevention function according to an embodiment of the present invention. Figure 2 is a vertical cross-sectional view (A) and an exploded view (B) seen from above showing the configuration of an electric roller screen device with condensation prevention function according to an embodiment of the present invention.

[0036] Fig. 3 is an exploded perspective view showing the configuration of a dew condensation prevention structure of an electric roller screen device with dew condensation prevention function according to an embodiment of the present invention. Fig. 4 is a front view (A), a side view (B), and a top view (C) showing the configuration of an air intake hole of the dew condensation prevention structure according to an embodiment of the present invention. Fig. 5 is a block diagram showing the configuration of a control device for preventing dew condensation in an electric roller screen device with dew condensation prevention function according to an embodiment of the present invention.

[0037] Fig. 6 is a flowchart showing a fan control process using a humidity sensor by the control device of the electric roller screen device with condensation prevention function according to the embodiment of the present invention. Fig. 7 is a flowchart showing a fan control process using a temperature sensor by the control device of the electric roller screen device with condensation prevention function according to the embodiment of the present invention.

[0038] <Electric roller blind device with condensation prevention function> As shown in Figures 1 and 2, an electric roller blind device 100 with condensation prevention function in an embodiment of the present invention (hereinafter simply referred to as "electric roller blind device 100") is attached to an object to be attached, such as a window frame or a wall around a window, or a ceiling, and is used as a shading device for blocking sunlight, etc.

[0039] In addition, the electric roller blind device 100 may be used to enable the outside to be seen from inside the room, or to prevent the inside of the room from being seen from outside, or to allow light and wind to enter the room, or to prevent light and wind from entering the room.

[0040] In the motorized roller screen device 100, the left-right direction in which the roller pipe 110 extends is defined as the longitudinal direction (arrow LR). In the longitudinal direction (arrow LR), for example, the left side (arrow L) and the right side (arrow R) in Fig. 1 as viewed from the inside of the room are defined as the longitudinal direction (arrow LR). The direction in which the roller screen 120 moves up and down relative to the roller pipe 110 is defined as the vertical direction (arrow UD). Furthermore, the horizontal direction perpendicular to the vertical direction (arrow UD direction) of the roller screen 120 is defined as the depth direction (arrow WP), the side of the roller screen 120 closer to the window is defined as the window surface side (arrow W), and the side away from the window is defined as the indoor side (P).

[0041] This electric roller screen device 100 is broadly composed of an electric roller screen unit 101 and a dew condensation prevention structure unit 102. In the electric roller screen device 100, the electric roller screen unit 101 and the dew condensation prevention structure unit 102 are connected to each other in the up-down direction (arrow UD) by side holders 139.

[0042] <Electric roller screen section> The electric roller screen unit 101 has a roller pipe 110, a roller screen 120, and a weight bar 121, etc., and the electric roller screen unit 101 is positioned below (arrow D) the condensation prevention structure unit 102 via side holders 139 (left side holder 139a and right side holder 139b).

[0043] As shown in FIG. 2, the roller pipe 110 is a cylindrical rotating body that winds up or releases the roller screen 120, and is formed to be slightly longer than the width of the roller screen 120 in the longitudinal direction (arrow LR).

[0044] Protrusions and convex portions (not shown) are formed along the direction of axis X on the inner peripheral surface of roller pipe 110. The protrusions and convex portions of roller pipe 110 are adapted to engage with slits and concave portions formed on the outer peripheral surfaces of driver 112, rotating drum 114, and rotating drum 119, which will be described later. Roller pipe 110 houses motor 118 in its internal space.

[0045] A rotating drum 114 is rotatably attached to the shaft portion 139s of the left side holder 139a and is arranged in the opening at the left end (arrow L) of the roller pipe 110 while being housed in the inner space of the roller pipe 110.

[0046] The rotating drum 114 has an outer diameter that is the same as the inner diameter of the roller pipe 110, and slits and recesses extending along the direction of the axis X are formed on the outer circumferential surface of the rotating drum 114. The slits and recesses of the rotating drum 114 engage with protrusions and convex portions formed on the inner circumferential surface of the roller pipe 110. In other words, the rotating drum 114 can rotate integrally with the roller pipe 110.

[0047] In addition, at the opening at the right end (arrow R) of the roller pipe 110, adjacent to the right end (arrow R) of the motor 118, a rotating drum 119 is rotatably attached to the shaft portion (not shown) of the right side holder 139b and is arranged in a state housed in the inner space of the roller pipe 110.

[0048] Rotating drum 119 also has an outer diameter that is the same as the inner diameter of roller pipe 110, and slits and recesses extending along the direction of axis X are formed on the outer circumferential surface of rotating drum 119. The slits and recesses of rotating drum 119 engage with protrusions and convex portions formed on the inner circumferential surface of roller pipe 110. In other words, rotating drum 119, like rotating drum 114, can rotate integrally with roller pipe 110.

[0049] The motor 118 housed in the inner space of the roller pipe 110 has a shaft portion 118s protruding from the end portion on the left side (arrow L), and a cylindrical driving body 112 is fixed to the shaft portion 118s. The motor 118 is, for example, a tubular motor.

[0050] The driver 112 has an outer diameter that is the same as the inner diameter of the roller pipe 110, and slits and recesses extending along the direction of the axis X are formed on the outer circumferential surface of the driver 112. The slits and recesses of the driver 112 engage with protrusions and projections formed on the inner circumferential surface of the roller pipe 110. The driver 112 is fixed integrally with a shaft 118s of the motor 118, and is therefore rotatable together with the shaft 118s.

[0051] In this manner, the rotating drum 114 , the rotating drum 119 , and the driver 112 are fixed integrally with the roller pipe 110 , and the roller pipe 110 is rotated by the shaft 118 s of the motor 118 via the driver 112 and the rotating drums 114 and 119 .

[0052] The electrical wiring of the motor 118 passes through the inside of the side holder 139 and is electrically connected to a circuit board 170 of a controller unit 140 (FIG. 1) housed in the inner space of the set bar 130, which will be described later.

[0053] The roller screen 120 has one end on the upper side (arrow U) attached to the roller pipe 110 so as to be capable of being wound up and released, and has the other end on the lower side (arrow D) attached to a weight bar 121.

[0054] Therefore, when the roller screen 120 is released from the roller pipe 110 and hangs down, the weight of the weight bar 121 pulls the roller screen 120 downward (arrow D), applying a predetermined tension to the roller screen 120 and maintaining it in a wrinkle-free state.

[0055] <Condensation prevention structure> As shown in FIG. 3, the condensation prevention structure 102 is mainly composed of a set bar 130, a controller unit 140, an upper cover 150, a blower 160, an intake 180, an intake hole 135, an exhaust hole 137, and the like.

[0056] <Set bar> The set bar 130 as a cylindrical member is a square cylindrical body with a generally U-shaped cross section that opens at the top (arrow U) and extends along the axis X. The set bar 130 is composed of a bottom wall 131, a window surface side wall 132W and an indoor side wall 132P extending upward (arrow U) from both side ends of the bottom wall 131, and a window surface side ceiling wall 133W and an indoor side ceiling wall 133P formed parallel to the bottom wall 131 at the upper ends of the window surface side wall 132W and the indoor side wall 132P, respectively.

[0057] The bottom wall portion 131 of the set bar 130 is a flat thin plate member having a width in the depth direction (arrow WP) smaller than the outer diameter of the roller pipe 110, and is formed slightly longer than the roller pipe 110 in the longitudinal direction (arrow LR).

[0058] Two protrusions 131a, 131b extending along the longitudinal direction (arrow LR) and protruding upward (arrow U) are formed on the bottom wall portion 131. The two protrusions 131a, 131b are formed with a fixed distance between them.

[0059] The window surface side wall portion 132W and the indoor side wall portion 132P of the set bar 130 have the same length in the longitudinal direction (arrow LR) as the bottom wall portion 131, and have a height sufficient to accommodate the controller unit 140 in the inner space of the set bar 130.

[0060] The window surface side wall portion 132W and the room side wall portion 132P are formed with a rib 132Wc and a rib 132Pc that extend along the longitudinal direction (arrow LR) and protrude toward each other.

[0061] An intake hole 135 consisting of a rectangular through hole is formed in a predetermined position on the left side (arrow L) of the indoor side wall portion 132P. The intake hole 135 is provided above (arrow U) a rib 132Pc (not shown) of the indoor side wall portion 132P.

[0062] An exhaust hole 137 consisting of a rectangular through hole is formed in a predetermined position on the right side (arrow R) of the window surface side wall portion 132W. The exhaust hole 137 is provided above (arrow U) the rib 132Wc of the window surface side wall portion 132W.

[0063] The intake holes 135 in the indoor sidewall portion 132P and the exhaust holes 137 in the window surface sidewall portion 132W have openings of the same shape and size, and are disposed at the same height in the up-down direction (arrow UD).

[0064] However, this is not limiting, and intake hole 135 and exhaust hole 137 may have various other shapes, such as a circle or an ellipse, and intake hole 135 may be larger than exhaust hole 137, or intake hole 135 may be smaller than exhaust hole 137. In other words, the shape, size, and arrangement of intake hole 135 and exhaust hole 137 can be determined arbitrarily.

[0065] The window surface side ceiling wall portion 133W and the indoor side ceiling wall portion 133P are flat thin plate-like members, and are formed to have the same length in the longitudinal direction (arrow LR) as the bottom wall portion 131. The window surface side ceiling wall portion 133W and the indoor side ceiling wall portion 133P have the same width in the depth direction (arrow WP) and are smaller than the bottom wall portion 131, and are portions that become the contact surfaces when the set bar 130 is attached to a ceiling or the like.

[0066] 1, ceiling fixing parts 134L, 134R are provided at the ends of both the left and right sides (arrows LR) of the set bar 130 so as to connect the window surface side ceiling wall part 133W and the room side ceiling wall part 133P. Therefore, the set bar 130 is fixed to a ceiling (not shown) via the ceiling fixing parts 134L, 134R.

[0067] In addition, a power cord 138 (FIG. 1) is pulled out from the end of the set bar 130 on the right side (arrow R), and power is supplied from a commercial power source via the power cord 138. The motorized roller blind device 100 uses the power from the commercial power source obtained via the power cord 138 to drive the motor 118 (FIG. 2) and operate the fan 161 of the blower section 160.

[0068] A right side holder 133b is attached to the right end of the set bar 130 (arrow R), and the opening at the right end of the set bar 130 (arrow R) is blocked by the presence of this right side holder 133b.

[0069] A temperature sensor (hereinafter referred to as the "window surface side temperature sensor") 220 arranged facing the window surface is attached to the window surface side wall portion 132W of the set bar 130. A temperature sensor (hereinafter referred to as the "indoor side temperature sensor") 210 arranged facing the indoor side is attached to the indoor side wall portion 132P of the set bar 130.

[0070] The window surface side temperature sensor 220 and the indoor side temperature sensor 210 are disposed near the circuit board 170 housed in the controller unit 140 at positions facing each other in the depth direction (arrow WP).

[0071] However, this is not limiting, and the window surface side temperature sensor 220 and the indoor side temperature sensor 210 may be arranged in positions that do not face each other as long as they are near the circuit board 170. What is important is that the window surface side temperature sensor 220 and the indoor side temperature sensor 210 are not arranged biased toward only one of the window surface side wall portion 130W or the indoor side wall portion 130P.

[0072] <Blower section> 3, blower 160 is made up of fan 161 and gap prevention frame 162 serving as a gap prevention member. In blower 160, gap prevention frame 162 is attached integrally to fan 161 by fitting or screwing.

[0073] Fan 161 of blower 160 has a main body 161a that is rectangular in plan view and has a predetermined thickness in the longitudinal direction (arrow LR), and an impeller 161b rotatably provided on main body 161a.

[0074] The gap prevention frame 162 of the blower section 160 has a frame body 162a which is in an inverted U-shape when viewed from above and is attached so as to cover the fan 161 from the outside, and an arc-shaped air outlet section 162b formed at the right end (arrow R) of the frame body 162a.

[0075] The gap prevention frame 162 of the blower 160 has two slits 162s, 162s formed along the longitudinal direction (arrow LR) on the outer circumferential surface of the frame body 162a. These slits 162s, 162s are portions that engage with the rib 132Wc of the window surface side wall portion 132W of the set bar 130 and the rib 132Pc of the room side wall portion 132P.

[0076] Therefore, when the fan 161 and gap prevention frame 162 of the blower section 160 are fixed together and attached to the inner space of the set bar 130, the slits 162s, 162s of the gap prevention frame 162 engage with the rib 132Wc of the window surface side wall portion 132W of the set bar 130 and the rib 132Pc of the indoor side wall portion 132P.

[0077] Furthermore, the width of the opening on the lower side (arrow D) of the gap prevention frame 162 is the same as the width between the two protrusions 131a, 131b on the bottom wall portion 131 of the set bar 130. Therefore, by engaging with the two protrusions 131a, 131b on the bottom wall portion 131 of the set bar 130, the gap prevention frame 162 is attached without any gaps to the bottom wall portion 131, the window surface side wall portion 132W, and the room side side wall portion 132P.

[0078] The width of fan 161 of blower 160 in the depth direction (arrow WP) is the same as the width between two protrusions 131a, 131b on bottom wall 131, and when blower 160 is attached to the inner space of set bar 130, fan 161 fits between two protrusions 131a, 131b on bottom wall 131. Therefore, blower 160 can be attached in close contact with set bar 130 with no gaps.

[0079] <Intake section> In the inner space of the set bar 130, an intake section 180 is disposed at a position corresponding to the intake hole 135 of the indoor side wall section 132P and adjacent to the fan 161 of the blower section 160. In this case, the intake section 180 and the fan 161 of the blower section 160 are disposed in contact with each other.

[0080] As shown in Figure 3 and Figures 4 (A) to (C), this intake section 180 has an intake main body 181, an intake port 182 for air from the outside, and an outlet port 183 for air to the fan 161 of the blower section 160.

[0081] The intake body 181 of the intake section 180 has a generally rectangular cylindrical shape that is L-shaped in plan view, and has a rectangular intake port 182 on the indoor side (arrow R) in the depth direction (arrow WP), and has an outlet port 183 on the right side (arrow R) in the longitudinal direction (arrow LR). The intake port 182 of the intake section 180 has a shape and size corresponding to the intake hole 135 of the indoor side wall portion 132P.

[0082] Outlet 183 of intake section 180 is a portion connected to fan 161 of blower section 160, and guides the air flowing in from intake hole 135 to blower section 160. Outlet 183 has the same rectangular shape as fan 161 of blower section 160, and has the same size.

[0083] The intake section 180 has two female screw portions 183h, 183h formed in the outlet 183, and the two female screw portions 183h, 183h are fixed to each other by screws or the like via the two through holes 161h, 161h (Figure 3) of the fan 161 provided at the corresponding positions.

[0084] The blower section 160 is fixed integrally with the intake section 180 and is disposed at a position where the intake port 182 of the intake section 180 and the intake hole 135 of the indoor side wall section 132P of the set bar 130 face each other.

[0085] <Controller unit> The controller unit 140 is a functional part that receives commands from a remote control and controls the operation of the fan 161 in response to those commands, and is equipped with a plate 141, a controller case 142 fixed onto the plate 141, and a circuit board 170 that constitutes a control device 200 (FIG. 5) described later and is disposed in the inner space of the controller case 142.

[0086] Plate 141 of controller unit 140 is a plate-like member extending along the longitudinal direction (arrow LR) and has the same length as the distance from blower 160 attached to set bar 130 to the right end (arrow R) of bottom wall 131. Plate 141 has a width in the depth direction (arrow WP) that is the same as the distance between window surface side wall 132W and room side wall 132P.

[0087] The plate 141 has recesses 141r, 141r which engage with the projections 131a, 131b of the bottom wall portion 131 of the set bar 130, and also has a protrusion 141p between the recesses 141r and 141r.

[0088] Therefore, when the plate 141 is placed on the bottom wall 131 of the set bar 130, the recesses 141r, 141r of the plate 141 engage with the projections 131a, 131b of the bottom wall 131, and the convex portion 141p of the plate 141 engages between the projections 131a and 131b. This allows the bottom wall 131 of the set bar 130 and the plate 141 to be fixed together without any gaps.

[0089] A controller case 142 is fixed integrally onto the plate 141 by fitting, adhesion, etc. The controller case 142 has a rectangular cylindrical shape, and has the same length as the plate 141 in the longitudinal direction (arrow LR).

[0090] The controller case 142 is formed so that its width in the depth direction (arrow WP) is slightly smaller than that of the plate 141. This is to avoid interference with the rib 132Wc on the window surface side wall portion 132W of the set bar 130 and the rib 132Pc on the room side side wall portion 132P. However, this is not limited to this, and as long as recesses that engage with these ribs 132Wc, 132Pc are formed in the side wall portion of the controller case 142, the controller case 142 may have the same width in the depth direction (arrow WP) as the plate 141.

[0091] The controller case 142 has a predetermined height in the vertical direction (arrow UD), and when the controller unit 140 is placed in the inner space of the set bar 130, it is aligned at the same height as the window side side wall portion 132W and the indoor side wall portion 132P.

[0092] Furthermore, controller case 142 accommodates a humidity sensor 230 in its internal space in addition to the above-mentioned circuit board 170. Humidity sensor 230 is attached in the internal space of controller case 142 and near circuit board 170. The reason for this is that in order to prevent condensation from occurring on circuit board 170, it is necessary to detect the humidity near circuit board 170.

[0093] <Upper cover> The upper cover portion 150, which serves as a gap prevention member, is placed on the top surface 142a of the controller case 142 when the controller unit 140 is placed in the inner space of the set bar 130, and is a cover member that is attached so as to seal the gap between the window surface side ceiling wall portion 133W and the indoor side ceiling wall portion 133P.

[0094] The upper cover portion 150 has a window surface side edge portion 151W and an indoor side edge portion 151P extending along the longitudinal direction (arrow LR) at both end portions in the depth direction (arrow WP), and the window surface side edge portion 151W and the indoor side edge portion 151P are the portions that engage with the window surface side ceiling wall portion 133W and the indoor side ceiling wall portion 133P of the set bar 130.

[0095] Therefore, when the upper cover portion 150 is attached to the set bar 130, it is placed on the top surface 142a of the controller case 142, and the window surface side edge portion 151W and the indoor side edge portion 151P are engaged with the window surface side ceiling wall portion 133W and the indoor side ceiling wall portion 133P of the set bar 130.

[0096] At this time, the top cover portion 150 attached to the set bar 130 is flush with the window surface side ceiling wall portion 133W and the room side ceiling wall portion 133P of the set bar 130. Therefore, in the set bar 130, the top surfaces of the top cover portion 150, the window surface side ceiling wall portion 133W, and the room side ceiling wall portion 133P are fixed in contact with the ceiling, so that a gap between the ceiling and the set bar 130 can be eliminated.

[0097] <Control device> Meanwhile, various electronic components are mounted on the circuit board 170 housed in the controller case 142, and these components constitute the control device 200. The control device 200 has a microcomputer (hereinafter, referred to as a "microcomputer") 300 that is composed of a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., a motor controller 310 that drives and controls the motor 118, and a data storage unit 330 that stores various data.

[0098] The microcontroller 300 is electrically connected to the window side temperature sensor 220, the indoor side temperature sensor 210, and the humidity sensor 230, and receives detection results from each sensor. Based on the detection results, the microcontroller 300 controls how the fan 161 of the blower section 160 is operated by the motor controller 310.

[0099] The motor controller 310 is a circuit unit that controls the operation of the fan 161, such as the rotation speed and direction of the motor 118. The data storage unit 330 is a storage device that stores reference data that is used when the microcomputer 300 issues a predetermined command to the motor controller 310, and detection results obtained from the window surface side temperature sensor 220, the indoor side temperature sensor 210, and the humidity sensor 230 as the results of actual operation.

[0100] <Effects> In the above configuration, in the electric roller blind device 100, a fan 161 of the blower section 160 is provided in a position adjacent to the controller unit 140 housed in the set bar 130, and a gap prevention frame 162 and an upper cover section 150 are attached to the set bar 130 as gap prevention members.

[0101] As a result, in the electric roller blind device 100, a ventilation flow path can be formed for efficiently flowing the wind generated by the fan 161 of the blower section 160 from the intake hole 135 of the set bar 130 to the exhaust hole 137 for the circuit board 170 in the controller case 142 of the controller unit 140 housed in the inner space of the set bar 130.

[0102] Therefore, the electric roller blind device 100 can directly and efficiently blow air from the fan 161 onto the circuit board 170 inside the controller case 142, so that the occurrence of condensation can be effectively suppressed.

[0103] At the same time, the electric roller blind device 100 prevents the wind from the fan 161 of the blower section 160 from leaking through the gap in the set bar 130 due to the presence of the gap prevention frame 162 and the upper cover section 150 as gap prevention members, so that the wind can be effectively directed against the circuit board 170 of the controller case 142, easily preventing the occurrence of condensation.

[0104] Furthermore, the electric roller blind device 100 can use the fan 161 to blow air flowing in from the outside through the intake hole 135 in the indoor side wall portion 132P of the set bar 130 into the inner space of the set bar 130 as wind, and exhaust the wind toward the window surface through the exhaust hole 137 in the window surface side wall portion 132W of the set bar 130.

[0105] That is, the electric roller blind device 100 can prevent condensation on the window surface by discharging air dried by heating in winter from the indoor side toward the window surface, and can also reduce the humidity in the space on the window surface side. Thus, the electric roller blind device 100 can form a space (environment) in which condensation is unlikely to occur for the circuit board 170 housed in the inner space of the set bar 130.

[0106] <Condensation prevention control process using humidity sensor> Furthermore, the motorized roller blind device 100 can efficiently control the operation of the fan 161 of the blower section 160 by the control device 200 using the window surface side temperature sensor 220 , the indoor side temperature sensor 210 , and the humidity sensor 230 .

[0107] For example, as shown in FIG. 6, the microcomputer 300 in the control device 200 of the electric roller blind device 100 starts from the start step (START) of routine RT1, proceeds to the next step S1, monitors the humidity detected by the humidity sensor 230 provided in the inner space of the controller case 142 of the controller unit 140, and proceeds to the next step S2.

[0108] In step S2, the microcomputer 300 judges whether the humidity detected by the humidity sensor 230 is, for example, equal to or greater than 70%, which is the judgment criterion. Here, the microcomputer 300 pre-stores the judgment criterion value of 70% in the data storage unit 330, and if the humidity sensor 230 detects the humidity equal to or greater than 70%, it obtains a positive result and proceeds to the next step S3.

[0109] However, if the humidity detected by the humidity sensor 230 in step S2 is less than, for example, 70%, the microcontroller 300 obtains a negative result and returns to steps S1 and S2 to repeatedly determine whether the humidity detected by the humidity sensor 230 is 70% or higher.

[0110] However, the microcontroller 300 does not fix the humidity standard to 70%, but stores the humidity standard as various values ​​such as 60%, 80%, etc. depending on the season or time of day in the data storage unit 330, and can change it as needed.

[0111] In step S3, since the humidity detected by the humidity sensor 230 is higher than the judgment reference, the microcomputer 300 operates the fan 161 of the blower 160 by driving the motor 118 via the motor controller 310, and then proceeds to the next step S4.

[0112] In step S4, the microcomputer 300 prevents condensation from occurring on the circuit board 170 of the controller case 142 by continuing the operation of the fan 161 for a certain period of time, and then proceeds to the next step S5. Note that the microcomputer 300 continues to constantly monitor the detection result of the humidity sensor 230 even while the fan 161 is being operated.

[0113] In step S5, the microcomputer 300 checks the detection result of the humidity sensor 230, and in the next step S6, similar to the above-mentioned step S2, determines whether the humidity detected by the humidity sensor 230 is less than 70%, for example.

[0114] In step S6, if the humidity detected by the humidity sensor 230 is 70% or higher, the microcontroller 300 obtains a positive result and returns to step S4, and continues to operate the fan 161. If the humidity detected by the humidity sensor 230 is less than 70%, the microcontroller 300 obtains a negative result and proceeds to the next step S7.

[0115] In step S7, microcomputer 300 determines that there is no longer any risk of condensation because the humidity detected by humidity sensor 230 has fallen below 70%, stops fan 161 of blower 160, and returns to step S1 to repeat the process.

[0116] As a result, the control device 200 of the electric roller blind device 100 can efficiently operate the fan 161 of the blower section 160 according to the actual humidity value, preventing condensation on the circuit board 170 while suppressing unnecessary power consumption.

[0117] In the control device 200, the humidity value serving as the judgment criterion is set to 70% in step S2, and also set to the same 70% in step S6. However, this is not limited to this, and the humidity value in step S2 may be set to 70% and the humidity value in step S6 may be set to the same 60%, for example, and the operation of the fan 161 may be controlled using different values.

[0118] <Condensation prevention control process using temperature sensors> Next, a dew condensation prevention control process using the window surface side temperature sensor 220 and the indoor side temperature sensor 210 by the electric roller blind device 100 will be described.

[0119] For example, as shown in FIG. 7, the microcomputer 300 in the control device 200 of the electric roller blind device 100 starts from the start step (START) of routine RT2, proceeds to the next step S11, monitors the temperature detected by the indoor temperature sensor 210 attached to the indoor side wall portion 132P of the set bar 130, and proceeds to the next step S12.

[0120] In step S12, the microcomputer 300 monitors the temperature detected by the window surface temperature sensor 220 attached to the window surface side wall portion 132W of the set bar 130, and proceeds to the next step S13. Here, the microcomputer 300 may perform the processes of steps S11 and S12 simultaneously, or may perform step S12 before step S11.

[0121] In step S13, the microcontroller 300 determines whether the temperature of the indoor side temperature sensor 210 is higher than the temperature of the window side temperature sensor 220. If the temperature of the window side temperature sensor 220 is higher than the temperature of the indoor side temperature sensor 210, a negative result is obtained, and the processing returns to step S11 and subsequent steps, and the detection results of the indoor side temperature sensor 210 and the window side temperature sensor 220 are monitored.

[0122] On the other hand, if the temperature of the indoor temperature sensor 210 is higher than the temperature of the window surface temperature sensor 220 in step S13, a positive result is obtained, and the microcomputer 300 proceeds to the next step S14. In this case, the microcomputer 300 determines that the indoor temperature is higher than the window surface temperature, and that the temperature difference makes it easy for condensation to occur in the environment.

[0123] In step S14, the microcomputer 300 operates the fan 161 of the blower 160 by driving the motor 118 via the motor controller 310, and then proceeds to the next step S15.

[0124] In step S15, the microcomputer 300 prevents condensation from forming on the circuit board 170 of the controller case 142 by continuing to operate the fan 161 for a certain period of time, and then proceeds to the next step S16.

[0125] In steps S16 and S17, the microcomputer 300 continues to monitor the detection results of the indoor side temperature sensor 210 and the window side temperature sensor 220, similarly to steps S11 and S12, and then proceeds to the next step S18.

[0126] In step S18, the microcontroller 300 determines whether the temperature of the indoor side temperature sensor 210 is higher than the temperature of the window side temperature sensor 220, and if the temperature of the indoor side temperature sensor 210 is higher than the temperature of the window side temperature sensor 220, a positive result is obtained, and the microcontroller 300 returns to step S15 and repeats the subsequent processing.

[0127] On the other hand, in step S18, if the temperature of the window side temperature sensor 220 is higher than the temperature of the indoor side temperature sensor 210, the microcontroller 300 obtains a negative result and proceeds to the next step S19, where it determines that there is no longer any risk of condensation occurring because the indoor side temperature is no longer higher than the window side temperature.

[0128] In step S19, the microcomputer 300 stops the driving of the motor 118 via the motor controller 310 to stop the fan 161 of the blower 160, and then returns to step S11 to repeat the process.

[0129] As a result, when the control device 200 of the electric roller blind device 100 determines that the environment is prone to condensation due to the difference in temperature between the window side and the room side, it operates the fan 161 of the blower section 160, thereby preventing condensation from occurring on the circuit board 170 while suppressing unnecessary power consumption.

[0130] (3) Other embodiments In the above-described embodiment, the control device 200 of the electric roller blind device 100 has been described as being configured to provide the fan 161 of the blower section 160 in the inner space of the set bar 130, but the present invention is not limited to this, and an exhaust fan (not shown) may be provided in the inner space of the set bar 130 near the exhaust hole 137 to suck in air from the fan 161 and exhaust it from the exhaust hole 137 so that it can be forcibly discharged to the outside.

[0131] In the above embodiment, the control device 200 of the electric roller blind device 100 has been described as preventing condensation by using the humidity sensor 230 in the condensation prevention control process in routine RT1. However, the present invention is not limited to this, and the operation of the fan 161 may be controlled in accordance with the detection result of either the window surface side temperature sensor 220 or the indoor side temperature sensor 210 in addition to the humidity sensor 230, or the operation of the fan 161 may be controlled in accordance with the detection results of both the window surface side temperature sensor 220 and the indoor side temperature sensor 210 in addition to the humidity sensor 230.

[0132] In addition, in the above-mentioned embodiment, the control device 200 of the electric roller blind device 100 has been described as operating the fan 161 of the air blowing section 160 when the temperature of the indoor side temperature sensor 210 is higher than the temperature of the window surface side temperature sensor 220, but the present invention is not limited to this, and the fan 161 of the air blowing section 160 may be operated when the temperature of the indoor side temperature sensor 210 is higher than the temperature of the window surface side temperature sensor 220 and the temperature difference is greater than a predetermined threshold value.

[0133] Furthermore, in the above-described embodiment, the electric roller blind device 100 in which the control target of the controller unit 140 is the roller blind 120 is given as an example, however, the present invention is not limited to this and may be applied to an electric blind device using other types of blinds, for example, horizontal blinds, vertical blinds, Roman shades, pleated screens, etc.

[0134] In addition, a person skilled in the art can appropriately modify the electric roller blind device 100 of the present invention in accordance with conventionally known knowledge. As long as the configuration of the present invention is still provided even after such modifications, it is of course included in the scope of the present invention. [Explanation of symbols]

[0135] 100...electric roller screen device, 101...electric roller screen section, 102...condensation prevention structure section, 110...roller pipe, 112...driver, 114...rotating drum, 118...motor, 118s...shaft section, 119...rotating drum, 120...roller screen, 121...weight bar, 139...side holder, 139a...left side holder, 139b...right side holder, 130...set bar, 131...bottom wall section, 131a, 131b...projection, 132W...window surface side wall section, 132Wc...rib, 132P...indoor side wall section, 132Pc...rib, 133W...window surface side ceiling wall section, 133P...indoor ceiling wall section, 134L...ceiling fixing section, 134R...ceiling fixing section, 135...intake hole, 137...exhaust hole, 138... Power cord, 140...controller unit, 141...plate, 141r...recess, 141p...protrusion, 142...controller case, 150...top cover, 151W...window surface side edge, 151P...indoor side edge, 160...blower section, 161...fan, 161a...main body, 161b...impeller, 161h...through hole, 162...gap prevention frame, 162a...frame body, 162b...outlet section, 162s...slit, 170...circuit board, 180...intake section, 181...intake main body, 182...intake port, 183...outlet port, 183h...female screw section, 200...control device, 210...indoor side temperature sensor, 220...window surface side temperature sensor, 230...humidity sensor, 300...microcomputer, 310...motor controller, 330...data storage section.

Claims

1. A roller pipe for winding or releasing the roll screen; A controller unit for controlling the operation of the roller pipe; a set bar configured as a cylindrical member that houses the controller unit in an inner space and is attached to an object to be attached; Equipped with The set bar includes a fan provided in the inner space, and a gap prevention member for blocking a gap between the fan and the set bar, and a gap between the set bar and the object to be attached, thereby forming a flow path for ventilation by the fan. An electric roller blind device with a dew condensation prevention function, comprising:

2. 2. The motorized roller blind device with condensation prevention function according to claim 1, wherein the set bar has an intake hole and an exhaust hole.

3. 3. The motorized roller blind device with condensation prevention function according to claim 2, wherein the set bar has an intake hole formed on the indoor side and an exhaust hole formed on the window surface side.

4. 3. The motorized roller blind device with condensation prevention function according to claim 2, wherein the set bar has, in addition to the fan, an exhaust fan provided near the exhaust hole in the inner space.

5. The controller unit includes a control device that controls an operation of the fan. The control device is a circuit board and operates or stops the fan depending on the value of a temperature sensor or a humidity sensor attached to the set bar near the circuit board, or the value of the temperature sensor and the value of the humidity sensor.

6. The controller unit includes a control device that controls an operation of the fan. The control device is a circuit board and operates or stops the fan based on the value of an indoor temperature sensor attached to the indoor side of the set bar near the circuit board and the value of a window surface temperature sensor attached to the window surface side of the set bar.

7. An electric blind device with a condensation prevention function, the electric blind device including a controller unit for operating the blind housed in an inner space and a cylindrical member that is attached to an object to which the blind is attached, The cylindrical member includes a fan provided in the inner space, and a gap prevention member for blocking a gap between the fan and the cylindrical member and a gap between the cylindrical member and the object to which the cylindrical member is attached to form a ventilation flow path by the fan. An electric blind device with a dew prevention function, comprising:

8. The motorized blind device with condensation prevention function according to claim 7, wherein the tubular member has an air intake hole and an air exhaust hole.

9. 9. The electric blind device with condensation prevention function according to claim 8, wherein in the tubular member, the intake hole is formed on the indoor side, and the exhaust hole is formed on the window surface side.

10. 9. The motorized blind device with condensation prevention function according to claim 8, wherein the tubular member has, in addition to the fan, an exhaust fan provided near the exhaust hole in the inner space.

11. The controller unit includes a control device that controls an operation of the fan. The electric blind device with condensation prevention function described in claim 7, characterized in that the control device is made of a circuit board and operates or stops the fan depending on the value of a temperature sensor or a humidity sensor attached to the cylindrical member near the circuit board, or the value of the temperature sensor and the value of the humidity sensor.

12. The controller unit includes a control device that controls an operation of the fan. The electric blind device with condensation prevention function described in claim 7, characterized in that the control device is made of a circuit board and operates or stops the fan based on the value of an indoor temperature sensor attached to the indoor side of the tubular member near the circuit board and the value of a window surface temperature sensor attached to the window surface side of the tubular member.

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