JPH06272462A - Motor-driven opening/closing device - Google Patents

Abstract

PURPOSE:To reduce action sound at low cost by changing the program content of a microcomputer according to the action condition and action state of a blind so as to make the rotating speed of a motor slow. CONSTITUTION:A signal is inputted to a microcomputer 5 by the operating switch l of a motor-driven blind and the elevating action time constant speed value 5c is outputted to a motor control circuit 4 to elevate the blind. In this case, when the output signal of the operating switch l is made speed changeover 1d, the microcomputer 5 switches the elevating action time constant speed value of a memory in a storage part, and the elevating speed at the ascending time when the motor action sound becomes larger than the descending time is made slow so as to lower the motor action sound down to the level at the descending time. In the case of the blind being large, the elevating speed is made slow to reduce action sound. Even if the elevating speed is made relatively fast with priority given to convenience at the time of being operated by a person, slow speed is maintained by automatic elevating action while monitoring the sunlight from a central controller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric opening / closing device for opening / closing an operated object such as a blind, a roll screen, a shutter, etc. by a motor or the like.

[0002]

2. Description of the Related Art A conventional electric switchgear of this type, for example,
By centrally controlling multiple electric blinds with a single controller, the heights of the multiple blinds and the angles of the blades are set to appropriate values in terms of both daylighting and cooling / heating efficiency, and the provision of blinds reduces cooling and heating costs. There are electric blind systems on the market that help maintain the aesthetics of the entire building as well as save money.

An example of such an electric blind system is disclosed in Japanese Patent Application Laid-Open No. 1-192986.

Next, the electric blind described in the above publication will be described.

In this electric blind, a plurality of blinds are provided in each of the plurality of zones. Then, one of the blinds in each zone is defined as a master unit, and the rest are defined as slave units. In each zone, the blind of the master unit is connected to the blind of one slave unit via a signal line, and the blind of the slave unit is connected to the blind of the next slave unit via another signal line. In this way, the blind of the master and the blind of the slave are connected in series. The blind of each parent device in each zone is connected to a centralized controller capable of individually or collectively controlling each blind.

In the electric blind constructed as described above, when the central controller collectively or individually commands the raising and lowering of the blinds of the master unit and the slave units and the opening and closing of the blades for the zone or all zones. First, the base unit receives the command signal. If the command signal is a command for raising or lowering and opening and closing collectively or individually in the zone to which the parent machine belongs, the parent machine raises and lowers the blinds of the parent machine and opens and closes the blades.

If the command signal is a command for raising or lowering or opening / closing the slave unit in the zone to which the master unit belongs, the master unit outputs the command signal to the slave unit. Each slave unit raises and lowers the blinds of the slave unit and opens and closes the blades if a command is issued to the slave unit to move the blinds up and down.

When signals are issued from the centralized controller to instruct the blinds to move up and down and the blades to open and close for all zones, each zone performs the above-mentioned collective operation, that is, interlocking operation.

The above-mentioned interlocking operation is controlled so as to move up and down and open and close at a predetermined constant speed. As a result, all the blinds that are interlocked are set to the same height and angle.

If the above-mentioned electric blind control method is applied to the blinds facing the same direction with respect to the sun, all the blinds can be operated in an appropriate state by the interlocking operation as described above, thereby saving cooling and heating costs and building. The overall aesthetic can be maintained.

[0011]

In the electric blind constructed as described above, a plurality of blinds are operated simultaneously, so that the operation sound during the interlocking operation is large.
Also, when it is automatically controlled to point in the same direction with respect to the sun, it suddenly starts to operate, so the operation sound is more worrisome, and the office itself where the blinds are installed is improved to a quiet environment. Therefore, in order to reduce the operating noise of the electric blind, efforts are being made to reduce the noise of the drive motor itself.

However, reducing the noise of the drive motor itself is a method of using the drive motor with a margin, or the use of a sound absorbing material makes the drive motor expensive, and thus blinds. There is a problem that it becomes expensive.

Therefore, an object of the present invention is to slow down the rotation speed of the motor, that is, to reduce the motor output, so that the operating noise becomes relatively quiet, regardless of the expensive driving noise reduction motor. The purpose of the present invention is to provide an electric switchgear that realizes that the operation sound is not noticeable by changing the ascending / descending speed according to the blind operating condition or by changing the ascending / descending speed according to the operating condition. .

[0014]

In order to achieve the above object, the present invention relates to a first aspect of the present invention, in which an operation for performing an operation of a blind "ascending", "descending", and "stopping" which is an operated object. In order to receive an input signal from the switch means, a control means such as a motor for raising or lowering the blind, and the operation switch means, and to perform a constant speed operation while the blind is moving up and down based on the received signal, A microcomputer, which is a control means for outputting a control signal to the control means in order to perform the constant speed operation at a rising time later than at a falling time, is provided.

In the invention according to claim 2, the above-mentioned claim 1
In addition to the above-mentioned means included in the invention according to the invention, an operation switch means in which an operation switch for performing an operation of "speed switching" is also added,
In the microcomputer, a processing means for switching the constant speed value at the time of raising / lowering operation is added by an input signal from the "speed switching" operation switch.

According to a third aspect of the present invention, the second means for performing the operations of "up", "down", and "stop" different from the operation switch means to the means provided in the invention according to claim 1
The operation switch means and the processing means for giving a difference in the constant speed value of the ascending / descending operation according to the input signal from the second operation switch means in the microcomputer are added.

According to a fourth aspect of the present invention, the means provided in the first aspect of the present invention is characterized in that the operation switch continuous ON time is used in the process of receiving the input signal from the "up" and "down" operation switches in the microcomputer. The processing means for increasing the constant speed value is added.

According to a fifth aspect of the present invention, in addition to the above-mentioned means provided in the first aspect of the invention, there is provided a speed setting switch means for setting a speed in a constant speed operation while moving up and down the blind, and a microcomputer for the speed setting switch means. A processing means for performing a constant speed operation using the input value of (3) as a reference of the constant speed value is added.

[0019]

According to the present invention having the above structure, in the invention of claim 1, if the output signal from the operation switch means is, for example, a "down" command signal, the "down" signal is input to the microcomputer, and the microcomputer is When the "lowering" signal is input, the motor control means outputs a signal for performing a constant speed lowering operation according to the lowering constant speed value stored in the storage unit of the microcomputer. As a result, the blind is lowered. Performs constant speed lowering operation according to the constant speed value during operation.

Next, if the output signal from the operation switch means is the "stop" command signal, the "stop" signal is input to the microcomputer, and the microcomputer sends a signal for performing the constant speed lowering operation to the motor control means. Output to the blind, resulting in the blind stopping.

Next, if the output signal from the operation switch means is the "rise" command signal, the "rise" signal is input to the microcomputer, and the microcomputer is stored in the memory section of the microcomputer by the motor control means. The signal for performing the constant speed increasing operation based on the rising speed constant speed value is output, and as a result, the blind performs the constant speed increasing operation based on the rising speed constant speed value.

Next, if the output signal from the operation switch means is a "stop" command signal, the blind is stopped in the same manner as when the descent is performed. Since the constant speed value during ascending operation is stored as a value smaller than the constant speed value during descending operation, the ascending operation rises later than the descending operation.

According to the invention of claim 2, in addition to the operation of the invention of claim 1, if the output signal from the operation switch means is a "speed switching" command signal, the "speed switching" signal is input to the microcomputer, When the "speed switching" signal is input, the microcomputer switches between the constant speed value during the descending operation and the constant speed value during the ascending operation stored in the storage unit.

According to the invention of claim 3, in addition to the operation of the invention of claim 1, if the output signal from the second operation switch means is, for example, a "down" command signal, the microcomputer will "down" the second signal. When a signal is input and the microcomputer receives the "decrease" second signal, the motor control means performs a constant speed descending operation according to the second descending operation constant speed value stored in the storage unit of the microcomputer. To output a signal for
At the time of lowering operation Performs constant speed lowering operation based on the constant speed value.

Next, if the output signal from the second operation switch means is a "stop" command signal, the "stop" second signal is input to the microcomputer, and the microcomputer is a signal for performing a constant speed lowering operation. Output to the motor control means is stopped, and as a result, the blind is stopped.

Next, if the output signal from the second operation switch means is an "increase" command signal, the "increase" second signal is input to the microcomputer, and the microcomputer controls the motor control means to the storage unit of the microcomputer. The blind outputs the signal for performing the constant speed increasing operation based on the second rising constant speed value stored in the memory, and the blind outputs the signal for performing the constant speed increasing operation based on the second rising operation constant speed value. As a result, the blind performs the constant speed increasing operation based on the constant speed value during the ascending operation. Next, if the output signal from the second operation switch means is a "stop" command signal, the blind is stopped in the same manner as during the descent.

According to the invention of claim 4, the invention according to claim 1
In addition to the effect of the invention of the invention, in the constant speed lowering operation by the "down" command signal, if the "down" command signal from the operation switch means is continuously input for a certain period of time, the microcomputer keeps the constant speed value during the lowering operation. Is increased and a control signal based on the speed value is output to the motor control means, and as a result, the blind performs a descending operation at a high constant speed.

Further, in the constant speed raising operation by the "raising" command signal, if the "raising" command signal from the operation switch means is continuously input for a certain time, the microcomputer increases the constant speed value during raising operation. Then, a control signal based on the speed value is output to the motor control means. As a result, the blind performs an ascending operation at a fast constant speed.

According to the invention of claim 5, in addition to the operation of the invention of claim 1, the microcomputer performs the constant speed lowering operation by the constant speed value during the descending operation or the constant speed increasing operation by the constant speed value during the ascending operation. When outputting the signal for performing, the signal is output to the motor control means by using the input signal value from the speed setting switch means as a reference of the constant speed value during the descending operation or the constant speed value during the ascending operation.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention for opening and closing an electric blind will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram showing the structure of an embodiment of the present invention. The structure of an embodiment of the present invention will be described with reference to FIG.

In FIG. 1, 1 is an operation switch,
The operation switch 1 is the "up" key 1a, the "down" key 1
b, a "stop" key 1c and a "speed switching" key 1d. The "up" key 1a, the "down" key 1b, and the "stop" key 1c are operation keys for moving up or down the blind, which is the operated body, and then stopping, and the "speed switching" key 1d is An operation key for switching the ascending / descending speed between high speed and low speed.

Reference numeral 2 denotes a serial signal receiving circuit, which outputs a serial signal for instructing "up", "down", and "stop" which are blind operations similar to those of the operation switch 1 from a central controller (not shown). To receive. Reference numeral 4 denotes a motor control circuit, which includes a height encoder (not shown) that outputs a pulse signal at a constant height for performing a constant speed lifting operation, and drives a motor (not shown) based on the input signal. To raise or lower the blind.

Reference numeral 5 denotes a microcomputer as a control means, and its internal RAM memory (not shown) has a rising constant speed value 5a for setting, a falling constant speed value 5b for setting,
A constant speed value 5c for operation and a continuous ON timer 5f are constructed, and the operation switch 1, the serial signal receiving circuit 2 and the motor control circuit 4 are connected.

The microcomputer 5 sets a constant speed value for setting 5a or 5 to a constant speed value for operation 5c based on a command signal from the operation switch 1 or the serial signal receiving circuit 2.
b is set to perform a constant speed increasing operation or a constant speed decreasing operation of the blind through the motor control circuit 4 and stop the blind during the ascending / descending operation. Also, "speed switching"
The constant speed values for setting 5a and 5b are switched from high speed to low speed or from low speed to high speed by an input signal of the key 1d. Further, the continuous ON time of the "up" key 1a or the "down" key 1b is counted by the continuous ON timer 5f, and the constant speed value for operation 5c is set to a higher speed value after 1 second has elapsed.

FIG. 2 shows the serial signal receiving circuit 2 shown in FIG.
It is a figure which shows the waveform of the signal transmitted from the central controller (not shown).

In FIG. 2, the signal is composed of a serial signal composed of a binary code, and the serial signal includes operation contents defined by a fixed number of bits. In the signal shown in FIG. 2, “1” and “0” are represented by the magnitude of the signal period, 2 ms are used for “1”, and 4 ms are used for “0”. However, this is just an example. That is, the signal cycle is not limited to that described above, and “1” or “0” may be represented by the magnitude of the amplitude regardless of the signal cycle, or another modulation method may be used.

FIGS. 3 and 4 are flow charts for explaining the operation of the blind shown in FIG. 1. FIG. 3 shows the operation signal of the operation switch 1, and FIG. 4 shows the operation signal of the serial signal receiving circuit 2. It is a flowchart in the case.

Next, the specific operation of the embodiment of the present invention will be described with reference to FIGS.

First, when the operation signal is not input,
In step S1, it is determined that the operation switch 1 is OFF, and in step S2, the continuous ON timer 5f is cleared. Then, in step S21, it is determined that serial signal reception has not been received, and no reception processing is performed.

Next, the case where the "high speed switching" key 1d is turned on will be described. Operation switch 1 is turned off in step S1.
N and the "high speed switching" key 1d is determined in step S3, and the constant speed value switching process of step S11 is performed, that is, if the set constant speed values 5a and 5b are "low speed values", the high speed value is set. If it is "high speed value", it is switched to "low speed value".

Next, the case where the "down" key 1b is turned on will be described. Operation switch 1 is turned on in step S1
Then, in steps S3 and S4, it is determined that the keys are not the "speed switch" and "stop" keys, and in step S5, the continuous ON timer count-up process is performed.

Since the main routine including step S5 is configured to be repeatedly processed at a fixed time (for example, 10 msec), the count-up process at step S5 is performed by a timer with a fixed time (for example, 10 msec) as a unit. Becomes

As described above, since the continuous ON timer 5f has been cleared, it is determined in step S6 that the timer value has not yet reached 1 second. Next step S8
In step S10, it is determined that the signal is a "down" signal, and when it is determined that the vehicle is stopped, the descent operation set including setting the set descent constant speed value 5b to the operation constant speed value 5c is performed. Done. By performing the descending operation set in step S13, the constant speed descending operation with reference to the operating constant speed value 5c, that is, the constant descending speed value 5b for setting is performed by outputting a control signal to the motor control circuit 4. Be seen.

If the "down" key 1b is still turned on here, unlike the above-described flow, it is determined in step S10 that the operation is in progress, the down operation setting process of step S13 is not performed, and step S5 is performed. Only the continuous ON timer is counted up. Then, when the subsequent ON time has passed 1 second, it is determined in step S6 that 1 second has elapsed, and in step S7 the constant speed value for operation 5
c is increased by a certain amount. As a result, the constant speed value for operation is 5
The constant speed lowering operation with reference to c is a higher speed constant speed lowering operation.

Next, the case where the "stop" key 1c is turned on will be described. Operation switch 1 is turned on in step S1
If it is not "speed switching" in step S3, and "stop" is determined in step S4, the switch S14
Stop processing, that is, clear that the operation is set. As a result, the aforementioned lowering operation is stopped.

Next, the case where the "up" key 1a is turned on will be described. Operation switch 1 is turned on in step S1
Then, in steps S3 and S4, it is determined that the keys are not the "speed switch" and "stop" keys, and in step S5, the continuous ON timer count-up process is performed. When the "stop" key 1c is turned off, there is no operation signal input, and the continuous ON timer 5f is cleared as described above. Therefore, the timer value still exceeds 1 second in step S6. It is determined that they have not.

At the next step S8, it is determined that the signal is "increase", and at step S9, it is determined that the signal is stopped, and the constant speed value for rising 5a for setting is set to the constant speed value 5c for operation at step S12. The ascending operation set including the above is performed. By the ascending operation set in step S12, the constant speed increasing operation is performed by referring to the operation constant speed value 5c, that is, by the value of the ascending operation constant speed value 5a, by outputting a control signal to the motor control circuit 4. .

Since the set rising constant speed value 5a is programmed to be smaller than the setting falling constant speed value 5b, that is, a slower value, the rising operation is slower than the descending operation.

If the "up" key 1a is still turned on here, unlike the above-mentioned flow, it is determined in step S9 that the operation is in progress, and the up operation setting process of step S12 is not performed, but step S5 is performed. Only the continuous ON timer is counted up. Then, when the subsequent ON time has passed 1 second, it is determined in step S6 that 1 second has passed, and in step S7 the constant speed value for operation 5c is set.
Is increased by a certain amount. As a result, the constant speed value for operation 5c
The constant speed increasing operation with reference to is a higher speed constant speed increasing operation.

Next, the case where the "stop" key 1c is turned on will be described. As in the case of the lowering operation described above, the operation switch 1 is turned on in step S1, it is determined that "speed switching" is not performed in step S3, and "stop" is determined in step S4, and the operation is stopped in step S14. Clears the process, that is, the operation is set. As a result, the ascending operation described above is stopped.

Next, the serial signal receiving circuit 2 "falls".
The time when the serial signal is received will be described. Step S21
Receives serial signal at, and "falls" at step S22
Is determined, and it is determined in step S24 that the vehicle is stopped,
The descending operation setting including setting the descending low speed value to the operation constant speed value 5c in step S26 is performed. The constant speed value for operation is set to 5 by setting the descending operation in step S26.
The constant speed descending operation with reference to c, that is, the descending low speed value is performed by outputting a control signal to the motor control circuit 4.

Even when the set descent constant speed value 5b is switched to the high speed value by the above-mentioned "speed switching" key operation, the low speed value is set to the operation constant speed value 5c as described above. Therefore, the lowering operation is performed based on the low speed value instead of the high speed value.

Next, the serial signal receiving circuit 2 is "stopped".
The time when the serial signal is received will be described. Step S21
Receives serial signal at, and "Stops" at step S22
Is determined, the stop processing of step S27, that is, the operation set is cleared. As a result, the aforementioned lowering operation is stopped.

Next, the serial signal receiving circuit 2 goes up.
The time when the serial signal is received will be described. Step S21
Receives serial signal at, and "increases" at step S22
Is determined, and it is determined in step S23 that the vehicle is stopped,
An ascending operation setting including setting the ascending low speed value to the operation constant speed value 5c in step S25 is performed. The constant speed value for operation is set to 5 by the ascending operation set in step S25.
A constant speed increasing operation is performed while referring to c, that is, at a rising low speed value by outputting a control signal to the motor control circuit 4.

Even when the setting constant speed value for ascent 5b is switched to the high speed value by operating the "speed switch" key, the low speed value is set to the constant speed value for operation 5c as described above. Therefore, the ascending operation is based on the low speed value instead of the high speed value. In addition, as described above, since the rising low speed value is programmed to be smaller than the falling low speed value, that is, a slow value, the operation is slower than the descending operation.

Next, the serial signal receiving circuit 2 is "stopped".
The time when the serial signal is received will be described. As in the case of the lowering operation, the serial signal is received in step S21 and "stop" is determined in step S22, and the stop processing in step S27, that is, the operation set is cleared. As a result, the ascending operation described above is stopped.

FIG. 5 is a schematic block diagram showing the structure of another embodiment of the present invention. Next, the configuration of another embodiment of the present invention will be described with reference to FIG.

In FIG. 5, reference numeral 11 is an operation switch, and the operation switch 11 is the same as in FIG.
a, "down" key 1b, "stop" key 1c, and does not include the "speed switching" key 1d in FIG. The serial signal receiving circuit 2 in FIG. 1 is also not included.

A high-speed setting switch 13 can set the ascending speed and the descending speed. Reference numeral 4 is a motor control circuit similar to that shown in FIG. Reference numeral 15 is a microcomputer, and its internal RAM memory (not shown) has an ascending speed value 15d and a descending constant speed value 15e.
Is constructed, and the operation switch 11, the speed setting switch 13 and the motor control circuit 4 are connected.

The microcomputer 15 reads the set value of the speed setting switch 13 and sets the set value to the ascending operation constant speed value 15d and the descending operation constant speed value 15e.

Further, referring to the speed value 15d for ascending operation or the constant speed value 15e for descending operation based on the command signal from the operation switch 11, the blind is operated through the motor control circuit 4 as a constant speed increasing operation or a constant speed decreasing operation. And stop the blind during the lifting operation.

FIG. 6 is a flow chart for explaining the operation of another embodiment of the present invention. Next, a specific operation of another embodiment of the present invention will be described with reference to FIGS.

First, when the operation signal is not input,
In step S31, it is determined that the operation switch 11 is OFF, and in step S32, the speed setting switch reading process, that is, the set value of the speed setting switch 13 is set to the ascending operation constant speed value 5d and the descending operation constant speed value 5e. set.

Next, the case where the setting of the speed setting switch 13 is changed will be described. As described in the case where the operation signal is not input, the set value of the speed setting switch 13 is read and processed in step S32 and set to the ascending operation constant speed value 15d and the descending operation constant speed value 15e. Has been done. As a result, when the setting of the speed setting switch 13 is changed, the ascending constant speed value 15d and the descending operation constant speed value 15e are immediately updated.

Next, the case where the "down" key 1b is turned on will be described. Operation switch 1 is turned on in step S31.
Then, in step S32, it is determined that the signal is the "fall" signal, and in step S35, the lowering operation is set. With the descending motion set in step S35, the speed setting switch 1 is referred to while referring to the descending motion constant speed value 5e.
The constant speed lowering operation is performed by outputting a control signal to the motor control circuit 4 according to the set value of 3.

Next, the case where the "stop" key 1c is turned on will be described. Operation step 1 is turned on in step S31
Then, in step S32, it is determined to be a "stop" signal, and in step S36, stop processing, that is, the operation set is cleared. As a result, the lowering operation described above is stopped.

Next, the case where the "up" key 1a is turned on will be described. Operation switch 1 is turned on in step S31.
Then, in step S32, it is determined that the signal is the "rising" signal, and in step S34, the rising operation is set. By the ascending operation set in step S34, that is, the operation setting switch 1 while referring to the ascending operation constant speed value 5d.
The constant speed increasing operation according to the set value of 3 is performed by outputting a control signal to the motor control circuit 4.

Next, the case where the "stop" key 1c is turned on will be described. As in the case of the lowering operation described above, when the operation switch 11 is turned on in step S31,
It is determined to be "stop" in step 3, and the stop process of step S36, that is, the operation set is cleared. As a result, the above-described raising operation is stopped.

In the setting of the speed setting switch 13, if the ascending speed value is set to a value smaller than the descending speed value, that is, a slower value, the constant speed ascending / descending operation based on the set value is performed as described above. Since this is performed, the ascending operation is a constant speed ascending operation at a slower speed than the descending speed. Further, if the set value is increased, a fast lifting operation can be obtained, and if the set value is decreased, a slow lifting operation can be obtained.

FIG. 7 is a flow chart of the constant speed raising / lowering control in the above two embodiments. Next, the constant speed ascending / descending control will be described with reference to FIG.

During the ascending and descending operations, a pulse signal is input to each of the microcomputers 5 and 15 from the height encoder included in the motor control circuit 4. Each of the microcomputers 5 and 15 is set to interrupt each pulse input of the signal. Further, in each microcomputer, a cycle timer (not shown) is set in order to count the cycle of the signal.

When a pulse signal is input from the height encoder during the ascending / descending operation, each of the microcomputers 5 and 15 determines that the microcomputer is in operation at step S41, and continues to step S41.
At 42, the cycle timer value is checked, and the voltage applied to the motor is changed according to the difference from the timer value determined from the constant speed ascending / descending value.

That is, if the value is judged to be appropriate, the applied voltage is left unchanged. If the value is large, that is, the cycle is long, the motor applied voltage is increased by a certain amount in step S34. If the value is small, that is, the cycle is short, the step is performed. In S44, the motor applied voltage is reduced by a certain amount. Then, in step S45, the period timer is cleared so that the period until the next pulse input is counted. As a result of the above, the motor is driven in the direction in which the cycle approaches a constant value.

In the above embodiment, the discrimination time of the continuous ON timer is 1 second, but this is an example. In addition, it is designed to switch at continuous ON time, but 2
One method is to switch by pressing the button once. Further, although the setting value is switched in two steps from a fixed value to a high speed value, a method of continuously increasing the speed in three steps or more, that is, during continuous ON or as a plurality of pushes are possible. In the above-mentioned embodiment, the switching value by the "speed switching" key 1d is set in two stages of the low speed value and the high speed value, but it is also possible to switch the switching value in three or more stages. Alternatively, the blind itself may be provided with a clock function, or a central controller may send a serial signal according to time, that is, speed switching may be performed at time.

A dip switch is generally assumed as the speed setting switch 13, but an EEPROM capable of easily changing data and retaining data even when the power is turned off is used, and a blind switch is used at the time of shipment. It is also possible to set a speed value from the size and so on before shipping.

Further, although the opening / closing operation is not mentioned in the above-mentioned embodiment, it is easy to apply the present invention to the opening / closing operation.

[0078]

As described above, the present invention slows or slows the ascending / descending speed at the time of ascending when the load of the driving means, for example, the motor load becomes large and the motor operating noise becomes louder than at the time of descending at the same rotation speed. Since it can be set, it is possible to relatively reduce the motor operating noise when rising. Alternatively, there is the possibility of lowering to the same level as when descending.

Further, since the ascending / descending speed can be changed even when the size of the operated object such as a blind is changed, the operation noise is reduced by moving up and down relatively slowly for a large blind, and conversely for a small blind. It is also possible to raise and lower it slowly to improve usability.

When a person operates to raise and lower at a relatively high speed by giving priority to usability, when performing automatic raising and lowering operations while monitoring sunlight from the central controller (using a serial signal The operation sound can be raised and lowered at a relatively slow speed, so that the operation sound is relatively small and is not noticeable to the surrounding people.

As a result of the above, the program content of the microcomputer for slowing down the rotation speed of the motor depending on the operating conditions or operating conditions of the blind, rather than the expensive motor for quiet noise driving using a generous use or sound absorbing material. Since it is mainly devised, the switchgear such as an electric blind that does not bother the operation sound is realized at low cost.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing the configuration of an electric blind according to an embodiment of the present invention.

FIG. 2 is a waveform diagram of a signal transmitted to the serial signal receiving circuit shown in FIG.

FIG. 3 is a flowchart showing an operation in response to an operation signal from an operation switch of the electric blind shown in FIG.

4 is a flowchart showing an operation of the electric blind shown in FIG. 1 in response to an operation signal from a serial signal receiving circuit.

FIG. 5 is a schematic block diagram showing the configuration of an electric blind according to another embodiment of the present invention.

6 is a flowchart showing the operation of the electric blind shown in FIG.

FIG. 7 is a flowchart showing a constant speed raising / lowering control of the electric blind shown in FIGS. 1 and 5.

[Explanation of symbols]

 1,11 Operation switch 1a "Up" key 1b "Down" key 1c "Stop" key 1d "Speed switching" key 2 Serial signal receiving circuit 4 Motor control circuit 5,15 Microcomputer 5a, 5b Set constant speed value 5c, 15d, 15e Constant speed value for operation 5f Continuous ON timer 13 Speed setting switch

Claims (5)

[Claims] 1. An operation switch means for performing operations such as "raising", "descending", "stopping", and "speed switching" of an operated body such as a blind, a roll screen, and a shutter, and raising or lowering the operated body. Based on the operation signal from the drive means including the motor to be lowered and the operation switch means,
An electric opening / closing device, comprising: an elevating means for elevating and lowering the operated body at a constant speed when moving up as compared to when moving down to open and close. 2. The electric switchgear according to claim 1, wherein it is possible to perform a process of switching a constant speed value during a lifting operation by the lifting means by a speed switching operation by the operation switch. 3. A second operation switch means for performing an operation such as "up", "down", "stop", "speed switching" and the like separately from the operation switch means, and the raising and lowering operation by the second operation switch means. 2. The electric switchgear according to claim 1, wherein the constant speed value of the control switch means can be differentiated from the constant speed value of the operation switch means. 4. The electric switchgear according to claim 1, wherein a process of increasing the constant speed value is enabled by a continuous ON time of the operating switch means "up" and "down" of the operating switch. 5. A process for performing constant speed operation, comprising speed setting switch means for setting a speed in constant speed operation while the operated body is moving up and down, and using an input value from the speed setting switch means as a reference of the constant speed value. The electric switchgear according to claim 1, wherein