JPH05161534A - Driving device for motor-drive curtain - Google Patents

Abstract

PURPOSE:To make it possible to provide a driving device on a curtain rail, by loading large size components constituting the driving device of the motor- driven curtain on a parent base board and loading small size components on a child base board lower than the large size components and further, making lower the driving device than the curtain rail. CONSTITUTION:Large size components such as an input line filter 21, a switching transformer 22, an input smoothing capacitor 23, etc., for instance are arranged to form a line in the longitudinal direction of a printed base board 20 as a master base board. The other small components are lower than the large size components and fitted on a slave base board 24 erected beside the large size components. The small components are chips, ICs loaded on the surface, etc. An electric power element 25 is fixed on a heat-radiating plate 26 which is brought into contact with a metallic curtain rail. The height of the large size components is lower than the curtain rail. In this way, the driving device can be arranged beside the curtain rail and hence, the wiring can be simplified and the curtain can be prevented from being entangled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric curtain drive device for automatically opening and closing a curtain.

[0002]

2. Description of the Related Art A conventional electric curtain drive device is shown in FIG. 8. In this electric curtain drive device, a motor is used to open and close the curtain.
The motor transmits the driving force to a curtain driving member such as a wire stretched in the curtain rail 2. The motor and the circuit for controlling the drive of the motor are suspended as a drive block 1 at one end of the curtain rail 2.

There is also an electric curtain drive device in which a motor such as a linear motor is integrally incorporated in the curtain rail 2 and the drive control of the motor is performed by the drive block 1.

[0004]

However, if the drive block 1 is hung on the end portion of the curtain rail 2 as described above, there is a problem that the curtain is entangled with the drive block 1 and cannot be normally opened and closed. In some cases, the drive block 1 may be ignited.

Therefore, it is conceivable to install the drive block 1 away from the curtain rail 2. However, if this is done, there is a risk that mechanical loss will occur due to the length of the wires, etc. The curtain rail 2
In the electric curtain drive device of the type incorporated in (1), there is a problem that wiring processing for the electric wire connecting the curtain rail 2 and the drive block 1 is required.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electric curtain drive device in which a drive block can be provided in the vicinity of a curtain rail.

[0007]

According to the present invention, in order to achieve the above-mentioned object, a mother board on which a large-sized component is mounted, and a child on which another small-sized component is mounted so as to stand upright on the mother substrate. The circuit of the drive block is configured by using the board, and the height of the child board is formed to be lower than at least the maximum height of the large-sized component.

Further, in order to allow the heat dissipation of the power element to be performed favorably without increasing the size of the drive block or increasing the cost, the surface of the curtain rail which is provided with the drive block is provided. It may be formed of at least a metal having high thermal conductivity, and the heat dissipation plate attached to the power element may be fixed in contact with the curtain rail.

Further, in order to eliminate the connection between the curtain rail and the drive block by the electric wire, the curtain rail and the drive block are provided with a fitting portion for fitting the projection and the recess, and the fitting state is mechanically fitted. In addition to fixing, a lock structure that uniquely determines the connection between the fitting parts is formed, and each fitting part is provided with at least a connecting part for electrically connecting the curtain rail and the drive block. Good.

[0010]

The present invention has the above-mentioned configuration,
The drive block can be formed lower than the height of the curtain rail so that the curtain does not become entangled with the drive block even when the drive block is provided together with the curtain rail.

[0011]

【Example】

(Embodiment 1) FIGS. 1 to 3 show an embodiment of the present invention.
The electric curtain drive device of the present embodiment uses a linear motor as a motor, and this motor is incorporated into a curtain rail to open and close the curtain suspended with respect to the movable part of the motor by driving the motor. ..

FIG. 2 shows a circuit configuration of a drive block for driving the above motor. The drive block includes a switching power supply unit 11 that supplies power to the motor 1, a speed control unit 12 that adjusts the power supplied from the switching power supply unit 11 to control the drive speed of the motor 1, and a switching power supply unit 11. A speed detection unit 13 that detects the drive speed of the motor 1 from the output current or voltage, and an operation unit 14 that performs opening / closing operation of the curtain or setting of the opening / closing speed of the curtain.
And an arithmetic processing unit 15 including a microcomputer that controls the operation of the switching power supply unit 11 or the speed control unit 12 according to the operation or setting of the operation unit 14. The speed setting unit that sets the opening / closing speed of the curtain may be provided separately from the operation unit 14.

In the drive block 1, the arithmetic processing section 15
Determines the opening / closing or the opening / closing speed of the motor 3 according to the speed or operation state set by the operation unit 14, gives a speed command to the speed control unit 12 according to the result of the judgment, and outputs it to the switching power supply unit 11. Gives a command to switch the polarity of the voltage. By the control of the arithmetic processing unit 15, the driving, stopping and driving speed of the motor 3 are controlled, and the opening / closing, stopping and opening / closing speed control of the curtain 4 are performed. The opening / closing speed of the curtain is detected by the speed detection unit 13, and the detection output is fed back to the speed control unit 12 to stabilize the opening / closing speed.

FIG. 1 shows a mounting structure of a circuit component constituting the drive block 1 on a printed circuit board. In this embodiment, large parts such as the input line filter 21, the switching transformer 22 and the input smoothing capacitor 23 are linearly arranged along the longitudinal direction of the printed circuit board 20 according to the order of power supply, and other small parts are large parts. It is mounted on a child board 24 standing upright on the side. Here, the height of the child board 24 is formed to be lower than that of the large-sized component. As the small component, it is preferable to use a component that can be mounted on a plane, such as a chip component or a surface mount type IC.

In this way, the height dimension of the drive block 1 is determined by the height of the large component, and if a relatively large component is used as this large component, the height of the drive block 1 will be the curtain rail. It can be smaller than the vertical width of 2. If the height of the drive block 1 is made lower than that of the curtain rail 2 as described above, the drive block 1 is formed.
Can be installed adjacent to the curtain rail 2 as shown in FIG. That is, since the height of the drive block 1 is lower than the height of the curtain rail 2, the curtain 4 does not cling to the drive block 1 unlike the conventional case. Moreover, since the drive block 1 can be arranged in the vicinity of the curtain rail 2, the electric wire 5 connecting the drive block 1 and the curtain rail 2 can be shortened, so that there is an advantage that no wiring process is required.

(Embodiment 2) FIGS. 4 and 5 show another embodiment of the present invention. In the case of the electric curtain drive device according to the present embodiment, it is necessary to supply electric power of several tens to several hundreds W to the motor 3, and a power element (for example, power transistor, diode, etc.) that constitutes the switching power supply unit 11.
The fever of the is considerably increased. Therefore, in order to dissipate the heat from the power element, a large heat dissipation plate or a cooling fan is required.

However, when such a large heat dissipation plate or fan is provided, the shape of the drive block 1 becomes large,
Moreover, there is a problem that the cost is increased. There is also a problem that noise is generated when a fan is used.
Therefore, in the present embodiment, the heat dissipation of the power element can be performed without using a large heat dissipation plate or fan. Specifically, the curtain rail 2 is formed of aluminum or the like having high thermal conductivity, and the power element 2 is formed as shown in FIG.
The heat dissipation plate 26 attached to the No. 5 is fixed to the curtain rail 2 in contact therewith. That is, the curtain rail 2
Is used for heat dissipation of the power element 25.

By the way, when fixing the heat dissipation plate 26 to the curtain rail 2 as described above, the surface of the drive block 1 facing the curtain rail 2 is opened so that the heat dissipation plate 26 is detachable. It suffices if the case can be attached after being fixed to the curtain rail 2. When the curtain rail 2 is used for heat dissipation as described above, a large heat dissipation plate or fan is not required for the drive block 1 itself, so that the shape can be downsized and the cost can be reduced.

In the above case, the entire curtain rail 2 is made of a metal having a high thermal conductivity, but even if only the side surface for fixing the heat radiation plate 26 is made of a metal having a high thermal conductivity. Good. (Embodiment 3) FIGS. 6 and 7 show still another embodiment of the present invention. In the case of the above-described embodiment, the electric wire 5 is used to connect the drive block 1 and the curtain rail 2 in which the motor 3 is incorporated. For this reason, there is a risk of incorrect connection such that the polarity of connecting the electric wire 5 is incorrect or the input / output is incorrect.

Therefore, in this embodiment, the drive block 1 is directly connected to the curtain rail 2. FIG. 6 shows the specific structure of the drive block 1.
A fitting protrusion 30 having a substantially columnar shape is projected from the end face of the curtain rail, the end of the curtain rail 2 is projected laterally, and the fitting hole 31 into which the fitting protrusion 30 is fitted is provided in the projection 32. Has been formed. A plurality of substantially L-shaped concave grooves 33 are formed on the peripheral surface of the fitting convex portion 30 of the drive block 1 from the tip to the central portion, and are fitted into the respective concave grooves 33 from the inner surface of the fitting hole 31. A plurality of projections 34 are formed so that the drive block 1 can be prevented from coming off.

As shown in FIG. 7, the tip end surface of the fitting convex portion 30 is recessed inward, and driving power is supplied to the pair of power supply pins 37a for supplying commercial power to the internal circuit and the motor 3 in the recess 36. A pair of output pins 37b are provided so as to project. In the fitting hole 31, a pair of connection plates 35a connected to the power supply line 39 and contacting the power supply pin 37 and a pair of connection plates 3 connecting the motor 3 and contacting the output pin 37b.
5b are provided.

In the connection between the drive block 1 and the curtain rail 2 of this embodiment, the concave groove 33 and the projection 34 are aligned with each other and the fitting convex portion 30 is fitted into the fitting hole 31. At this time, the drive block 1 is fitted to the curtain rail 2 in a slightly inclined state. Then, a protrusion 34 is formed at the innermost portion of the groove 33.
When the fitting convex portion 30 is pushed into the fitting hole 31 while rotating the drive block 1 so that the fitting block 30 fits, the fitting convex portion 30 is completely fitted in the fitting hole 31, and the driving block 1 becomes the curtain rail. It is mechanically fixed to 2. Then, at this time, the power supply pin 37a and the output pin 37b come into contact with the corresponding connection plates 35a and 35b, thereby supplying power to the drive block 1 and connecting to the motor 3.

The concave groove 33 and the projection 34 are formed asymmetrically at the forming positions so that the fitting convex portion 30 can be fitted into the fitting hole 31 only in a certain state. I'm trying not to be connected. Further, the number of poles of the pin 37 and the connecting plate 35 can be changed as required. Further, a rubber packing 38 is attached to the opening edge of the fitting hole 311 so that the drive block 1 is stably fixed to the curtain rail 2.

[0024]

As described above, the present invention uses the main board on which the large-sized component is mounted and the sub-board on which the other small-sized component is mounted so as to stand upright on the main-mounted substrate and on which the other small-sized components are mounted. Since the circuit is constructed and the height of the child board is formed at least lower than that of the maximum height of large parts,
The drive block can be formed to be lower than the height of the curtain rail, so that the curtain does not become entangled with the drive block even when the drive block is provided together with the curtain rail.

In addition, the surface of the curtain rail that is provided with the drive block is formed of at least a metal having high thermal conductivity,
If the heat dissipation plate attached to the power element is fixed to the curtain rail by contact, the power dissipation of the power element can be satisfactorily dissipated by the curtain rail, and the heat dissipation plate on the drive block side can be enlarged or a cooling fan can be installed. You do n’t have to
Therefore, the drive block does not become large and the cost does not increase.

Further, the curtain rail and the drive block are provided with fitting portions for fitting in concave and convex portions, the fitting state is mechanically fixed to the fitting portions, and the connection between the fitting portions is uniquely determined. When the lock structure is formed and each fitting portion is provided with at least a connection portion for electrically connecting the curtain rail and the drive block, the drive block can be directly mechanically and electrically connected to the curtain rail. Since the connection can be made and the fitting structure is provided with the lock structure that uniquely determines the connection between the fitting parts, there is an advantage that misconnection is not caused unlike the case of the connection by the electric wire.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mounting structure of a circuit component forming a drive block according to an embodiment of the present invention on a printed circuit board.

FIG. 2 is a block diagram showing a circuit configuration of a drive block of the above.

3 (a) and 3 (b) are a perspective view and a side view showing an installed state of the above-mentioned drive block.

FIG. 4 is a perspective view and a side view showing an installed state of a drive block according to another embodiment.

FIG. 5 is a perspective view showing a mounting state of a circuit component forming the above drive block on a printed board.

FIG. 6 is a perspective view showing a main part structure of still another embodiment.

FIG. 7 is a perspective view showing a main structure of a drive block.

FIG. 8 is a front view showing the structure of a conventional electric curtain drive device.

[Explanation of symbols]

 1 Drive Block 2 Curtain Rail 3 Motor 4 Curtain 20 Printed Circuit Board 24 Substrate 25 Power Element 26 Heat Sink 30 Fitting Convex 31 Fitting Hole 33 Recessed Groove 34 Projection 35a, 35b Connection Board 37a Power Pin 37b Output Pin

Claims (3)

[Claims] 1. An electric curtain drive device for opening and closing a curtain by controlling the operation of a linear motor incorporated in a curtain rail with a drive block, and a parent board on which large parts are mounted, and a parent board installed upright on the parent board. And a small board on which other small parts are mounted are used to form the circuit of the drive block, and the height of the small board is at least lower than the maximum height of the large parts. A characteristic electric curtain drive device. 2. A surface of the curtain rail that is provided with the drive block is formed of at least a metal having high thermal conductivity, and a heat radiating plate attached to the power element is fixed in contact with the curtain rail. The electric curtain drive device according to claim 1. 3. The curtain rail and the drive block are provided with fitting portions that are fitted to each other in a concavo-convex shape, the fitting state is mechanically fixed to the fitting portions, and the connection between the fitting portions is uniquely determined. 2. The electric curtain drive device according to claim 1, wherein a lock structure is formed, and each fitting portion is provided with at least a connecting portion for electrically connecting the curtain rail and the drive block.