JPH03195131A - Wireless switch - Google Patents

Abstract

PURPOSE:To eliminate necessity for exchanging a battery and to improve handleability by using a secondary battery, which is charged by a solar battery to generate power by receiving light incident through a transmissive window provided on the front surface of a case as the driving power source of a circuit part. CONSTITUTION:The solar battery SB, which generates power by receiving the light incident from a transmissive window 22 provided on the front surface of the case, and the secondary battery B to be charged by the solar battery SB are built in the case and the secondary battery B is used as the driving power source of the circuit part. In such a manner, the secondary battery B to be charged by the output of the solar battery SB is used as the driving power source of the circuit part. Thus, this wireless switch can be realized while eliminating necessity for exchanging the battery, and improving the handleability.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a wireless switch that transmits a wireless signal for load control to a wireless receiver that receives a wireless signal using light as a medium to control the load.

[Conventional technology]

2. Description of the Related Art Conventionally, wireless switches have been provided in remote monitoring and control systems, etc., in which a wireless signal is transmitted using light such as infrared rays as a medium, and a load is controlled by a wireless receiver that receives the wireless signal. A remote monitoring and control system using such a wireless switch is configured as shown in FIG. 10, for example. That is, a central control unit 61, a monitoring terminal 62 each having a unique address, a control terminal 63, a wireless relay terminal 564, an external interface terminal 65, and a pattern setting terminal. vessel 66
are connected via a pair of signal lines, and the central control unit! The transmission signal Vs sent from 61 to the signal lines is
As shown in FIG. 11(a), a start pulse signal ST indicates the start of signal transmission, a mode data signal MD indicates the signal mode, and an address data signal AD that transmits 8-bit address data for calling each terminal 62 to 66. , load, ~L, control data signal CD, checksum data signal C8, and terminal device 62 for transmitting control data for controlling load, ~L,
It is a bipolar (±24■) time-division multiplexed signal consisting of a signal return period WT that sets a return period from 66 to 66, and data is transmitted by pulse width modulation. When the address data of the transmission signal Vs received via the signal line matches the set unique address, each terminal device 62 to 66 captures the control data of the transmission signal Vs, and also takes in the control data of the transmission signal Vs. Vs signal return period W
The monitoring data signal is returned as a current mode signal (a signal sent by short-circuiting the signal lines 18 via an appropriate low impedance) in synchronization with T. Also,
The central control device 61 includes a dummy signal transmitting means that always sends out a dummy transmission signal with the mode data signal MD in a dummy mode, a terminal device 62 for monitoring, a terminal device 64 for wireless relay, and a terminal device for external interface. 65, the first signal returned from any of the pattern setting terminals 66
1 When an interrupt signal Vi as shown in FIG. 1(b) is received, the terminal device 62.64 to 66 that generated the interrupt is detected, the terminal device 62.64 to 66 is accessed, and the monitoring data is sent back. An interrupt processing means is provided. In addition, in the central control device 61, as described above, data is sent back to the central control device 61 from the monitoring terminal device 62, the wireless relay terminal device 64, the external interface terminal device 65, and the pattern setting terminal device 66. Creates control data to be transmitted to the control terminal 63 that controls the corresponding load and L4 based on the monitored data, and
The control data is time-division multiplex transmitted to the Mal terminal 63 via the signal M/, and is loaded to control the terminals .about.L. Here, each terminal device 62 to 66 obtains power by rectifying and smoothing the transmission signal vi. Furthermore, each of the terminals 62 to 66 has a unique address, but by assigning a channel to each address, the monitoring terminal 62 and the control terminal 63 belonging to the same channel can be assigned a unique address. Correspondence is now set. For example, if the channel number is
When the switches S and ~S4 connected to the monitoring terminal 62 whose channel number is "5" are operated, the loads L1 to L4 connected to the control terminal 63 whose channel number is "5" are controlled. It is. The wireless relay terminal 64 consists of a wireless switch Y, a wireless receiver X, and a wireless signal line, and is a terminal that relays data using a wireless signal using light as a medium. The wireless receiver X receives the wireless signal received by the wireless receiver
It is designed to be transferred to This data includes the above-mentioned channel number and control data specifying on/off of the load. The terminal device 65 for external interface is connected to the external control device 6
The pattern setting terminal 66 transmits pattern control data input from the data input section 68 to the central control unit 7. This is a terminal device that transfers data to 61. In addition, the distribution board 71 or the relay control board 72
The terminal device 62 for monitoring and the terminal device 63 for control installed inside the terminal have the dimensions agreed upon in the distribution board agreement, and their control output enables a remote control relay for load control (which can also be turned on and off with a hand switch). A latching relay (73) is controlled. At present, primary batteries such as dry batteries are used as power sources for wireless switches used in remote monitoring and control systems such as those described above.

[Problem to be solved by the invention]

As mentioned above, when a rechargeable battery is used in a wireless switch, there is a problem in that it is time-consuming because the battery must be replaced. The present invention aims to solve the above problems, and aims to provide a wireless switch that uses a combination of a solar cell and a secondary battery as a power source, eliminating the need for battery replacement and improving usability. It is something.

[Means to solve the problem]

In order to achieve the above object, in the structure of claim 1, a solar cell that generates electricity by receiving light incident through a transparent window provided on the front side of the case, and a secondary battery that is charged by the solar cell are attached to the case. It is built inside the device, and uses a secondary battery as the driving power source for the circuit section. Further, in the structure of claim 2, the circuit board with the circuit section mounted inside the case is housed in a manner substantially parallel to the front surface of the case, and the solar cell is disposed between the inner peripheral surface of the case and the circuit board. The battery holder is provided with engaging legs that are held between the installed battery holder and the inner peripheral surface of the case and that engage with the peripheral portion of the circuit board. In the configuration of claim 3, a switch is provided between the solar cell and the secondary battery and the circuit section.

[Effect]

According to the configuration of the first aspect, since the secondary battery charged by the output of the solar cell is used as the driving power source for the circuit section, there is no need to replace the battery. According to the structure of claim 2, the solar cell is held in a fixed position within the case by the battery holder that engages with the circuit board, so that the solar cell can be reliably positioned within the case and assembly is facilitated. . According to the structure of claim 3, although the switch is provided between the solar cell and the secondary battery and the circuit section, when the secondary battery is in an over-discharge state, if the switch is turned off, the secondary battery can be turned off. The voltage across the battery can be restored to its original level in a relatively short time.

【Example】

As shown in FIGS. 1 to 4, it has a case 1 made of synthetic resin. The case 1 is formed by combining a base 10 that is attached to a wall surface or the like and a cover 20 that covers the front surface of the base 10. A recess 11 is formed on the back surface of the base 10, as shown in FIGS. 3 and 4. At the time of shipment, recess 11
A mounting plate 12 made of an iron plate is disposed inside. Mounting plate 12
is fixed to the case 1 by an assembly screw 13 inserted from the back side of the base 10 and screwed into a boss 20a protruding from the inner peripheral surface of the cover 20. A pair of upper and lower mounting holes 12a and 12b are bored in the mounting plate 12, and the upper mounting hole 12a forms a so-called potbellied hole in which a large diameter portion and a small diameter portion are continuous. Further, a magnet plate 14 made of a rubber magnet is magnetically attached to the back surface of the mounting plate 12. Suction fittings 15 are attached to both sides of the bottom of the recess 11, and hook holes 16 are formed in the earthen wall of the recess 11. An abbreviated hook piece 12c that can be held in the hook hole 16 extends from the upper edge of the mounting plate 12. However, when the mounting surface is made of a magnetic material such as an iron plate, the case 1 can be fixed to the mounting surface by bringing the magnet plate 14 into contact with the mounting surface in the state at the time of shipment. On the other hand, when the mounting surface is a non-magnetic material, after removing the assembly screws 13 and removing the mounting plate 12 and magnet plate 14 from the case 1, screw the screws into the mounting surface through the mounting holes 12a and 12b of the mounting plate 12. By doing so, the mounting plate 12 is fixed to the mounting surface with the magnet plate 14 on the front side. Further, the base 1o and the cover 20 are connected using the assembly screws 13. In this state, the hook piece 1 of the mounting plate 12
2c is engaged with the hooking hole 16 of the case 1, a magnetic force acts between the magnet plate 14 and the adsorption fitting 15, and the hooking piece 12c is engaged with the hooking hole 16, so that the case 1 is attached. It is fixed to the surface. At the upper end of the cover 20, as shown in FIGS. 2 and 4, a light emitting section cover 21 made of a material such as acrylic through which infrared rays can pass is provided. cover 20
A transparent light-transmitting window 22 made of acrylic or the like is provided at the top of the front surface. The transparent window 22 is fixed to the cover 20 by ultrasonic welding or the like. cover 20
In the center of the front of the
is exposed. Further, below the transparent window 22, on the front surface of the cover 20, there are operation handles 24, -24. are exposed and each operation handle 24. -24, name cards 251-25. is installed. Operation handles 241-24. Further below, a channel setting switch SW4 consisting of a deep 1 switch and a power supply switch SWs, which will be described later, are arranged. The channel setting switch SW4 and the switch SWs are covered by a nameplate 26 that can be opened and closed with respect to the case 1. Inside the case 1, a circuit board 3 is arranged.
The basic part of the 9 circuit parts in which the circuit part shown in FIG. 5 is mounted is a microprocessor 31 (for example, μPD612
5AG-571, etc.), and a circuit section is constructed by adding switches SW, to SW, a crystal resonator X, light emitting diodes LD+, LD2, etc. to this microprocessor 31. Power is supplied to the circuit section by a solar battery SB and a secondary battery B consisting of a lithium battery. That is, solar cell S
The output voltage of H is detected by the voltage detection circuit 32 via the reverse current blocking diode D and the current limiting resistor R+.
The output voltage of the solar cell SH is stabilized by controlling the transistor Q1, whose emitter and collector are connected in parallel to the solar cell SB, by the voltage detection circuit 32. Secondary battery B is charged by the thus stabilized output. By providing the current limiting resistor R1 here, the charging current to the secondary battery B is prevented from becoming excessive, and the secondary battery B can be charged at all times. Both ends of the secondary battery B are connected in parallel to a large capacity capacitor CI via a switch SWs, and the voltage across the capacitor C1 is applied to the drive circuit 33. Further, the voltage across the capacitor C1 is applied to the microprocessor 31 via a voltage drop diode D2, which is a Schottky barrier diode. Connected to the microprocessor 31 are operating switches SW, -SW1, and a channel setting switch SW4. Here, the part indicated by O regarding the channel setting switch SW4 is a diode D as shown in Figure 6.
This is the meaning of a series circuit between the switch and switch SW. The microprocessor 31 sends out a predetermined output by operating the switches SW, to SW3, and this output is input to the drive circuit 33.The output of the drive circuit 33 causes a light emitting diode to output a wireless signal that is infrared L D
+, LD2 blinks. Also, a transistor Q2 which is a switching element in the drive circuit 33
An indicator lamp 23 made of a light emitting diode that outputs visible light is connected in series between the emitter and collector of , and when the light emitting diodes LD, LD2 emit light, the indicator lamp 23 emits light to determine whether a wireless signal is being output. can be confirmed. By the way, a power switch SW5 is inserted between the power supply section consisting of the solar cell SB and the secondary battery B and the capacitor C4.
The power supply section can be separated from the microprocessor 31 and drive circuit 33. With this configuration, when the secondary battery B is completely discharged at the time of shipment, or when the secondary battery B becomes over-discharged for some reason, the switch S W s is turned off. By this, secondary battery B by solar cell SH
can be charged in a relatively short time, and the output voltage of the secondary battery B can be recovered. By the way, the light emitting diodes LD + and LD 2
As shown in FIG. 7, a board 34. is provided separately from other circuit sections. ．． 34□, circuit board 3 and board 341
．． 34□ is connected via a lead wire 35. Substrate 34. ．． A shaft protrusion 34a is provided on the surface of the board 342, and as shown in FIG. A protrusion 36a is provided in a protruding manner, and by inserting the coupling protrusion 36a into the substrate 34I, 342 and melting the tip of the coupling protrusion 36a, the rotary table 36 and the substrate 341.34□ are fixed. It is. Further, a shaft protrusion 36b is protruded from one end of the rotary table 36, and a shaft hole 36c is bored at the other end of the rotary table 36. The shaft protrusions 34a of the substrates 341 and 342 and the shaft protrusions 36b of the rotary table 36 are coaxially formed. A battery holder 4 made of ABS resin or the like is disposed between the circuit board 3 and the transparent window 22 of the case 1. As shown in FIG. 7, the battery holder 4 is formed into a thin box shape with four engagement legs 41 protruding from the back surface of the periphery. On the bottom wall of the battery holder 4, a substrate 34. ．． 342
a bearing hole 42 into which the shaft protrusion 34a is rotatably inserted;
A through hole 44 is bored through which a lead wire 43 of the solar cell SB is inserted. Furthermore, a presser rib 45 is provided on the back surface of the battery holder 4 in a protruding manner. On the other hand, the circuit board 3 has an engagement notch 3 that engages with an engagement leg 41 provided on the battery holder 4.
7 is formed. Therefore, with the solar cell SB mounted on the front surface of the battery holder 4, the lead wire 43 is inserted into the through hole 4.
4, and a terminal T with a lead wire 43 provided on the circuit board 3.
When connected to the circuit board 3, the solar cell SB is electrically connected, and in this state, the engaging leg 41 of the battery holder 4 is
When the circuit board 3 and the battery holder 4 are engaged with the engagement notch 37, the circuit board 3 and the battery holder 4 are combined. Here, between the presser rib 45 and the circuit board 3, light emitting diodes LD, LD
The second lead wire 35 is clamped, and the tension of the lead 1135 is fixed. The shaft projection 36b of the rotary table 36 is inserted into the through hole 17 provided in the base 10, and the tip surface of the shaft projection 36b is exposed on the back surface of the base 10. An arrow-like mark is provided on the tip surface of the shaft protrusion 36b, so that the rotation angle of the rotary table 36 can be determined. Further, a projection 39a provided on the rotary handle 39 is inserted into the shaft hole 36c of the rotary table 36, and an operating lever 39b is protruded from the 0-rotation handle 39. is inserted into the guide hole 18 of the base 10 and protrudes from the back surface of the base 10. When the operating lever 39b is moved left and right along the guide hole 18, the rotary table 36 rotates around the shaft protrusion 36b, thereby changing the irradiation direction of infrared rays output from the light emitting diodes LD, LD2 to the left and right. be able to. The shaft protrusion 34a provided on the substrate 341.34□ is inserted into the bearing hole 42 provided on the battery holder 4, and the substrate 34 + ,
342 and the rotating table 36 are connected to the battery holder 4 and the base 1.
0. In addition, a cover 20 is attached to the base 10.
By coupling these, solar cell SB is held between battery holder 4 and the inner circumferential surface of cover 20. As shown in FIGS. 8 and 9, a mirror 5 is disposed on the upper part of the case 1 at a portion corresponding to the light emitting diodes LD, LD2. Both ends of the mirror 5 are held by rotating shafts 51 at the upper part, and a guide bin 52 protruding from the mirror 5 at the lower part is attached to the base 1.
It is inserted into a guide groove 55 formed along the inner circumferential surface of 0. As shown in FIG. 2, the end surface of each rotation shaft 51 is exposed on both sides of the case 1, and the end surface of each rotation shaft 51 has a jig insertion groove into which a screwdriver or a coin can be inserted. 54
is formed. Therefore, when the rotation shaft 51 is rotated, the upper end of the mirror 5 is pulled upward as the rotation shaft 51 is rotated, as shown by the imaginary line in FIG. By moving upward along the guide groove 55, the inclination angle of the mirror 5 can be adjusted. That is, by rotating the rotation shaft 51, the direction of irradiation of infrared rays output from the light emitting diodes LD, LD2 can be changed upward or downward. Here, if the mirror 5 is rotatable within a range of 45 degrees, the irradiation direction can be varied within a range of 90 degrees, so the thickness of the case 1 can be made relatively small.

【Effect of the invention】

As described above, in the configuration of claim 1, the case includes a solar cell that generates electricity by receiving light incident through a transparent window provided on the front side of the case, and a secondary battery that is charged by the solar cell. However, since the secondary battery is used as the driving power source for the circuit,
This has the advantage of eliminating the need to replace batteries and improving usability. In the structure of claim 2, the circuit board on which the circuit section is mounted is housed in the case so as to be substantially parallel to the front surface of the case,
The solar cell is held between the inner circumferential surface of the case and a battery holder disposed between the inner circumferential surface of the case and the circuit board, and the battery holder is provided with engagement legs that engage with the circumference of the circuit board. Since the solar cell is held in a fixed position within the case by a battery holder that engages with the circuit board, it has the advantage that the solar cell can be reliably positioned within the case and assembly is facilitated. In the structure of claim 3, since the switch is provided between the solar cell and the secondary battery and the circuit section, when the secondary battery is in an over-discharge state, if the switch is turned off, the secondary battery can be turned off. The voltage across the terminal can be restored to its original value in a relatively short time.

[Brief explanation of drawings]

Figure 1 is a front view showing an embodiment of the present invention, Figure 2 is a side view of the same, Figure 3 is a rear view of the same, Figure 4 is a sectional view of the same, and Figure 5 is a circuit section used in the same. 6 is a circuit diagram of the main parts of the same as above, FIG. 7 is an exploded perspective view of the main parts of the same as above,
Fig. 8 is a sectional view of the main part of the same as above, Fig. 9 is a partially cutaway front view of the main part of the same with the cover removed, Fig. 10 is a schematic configuration diagram of a remote monitoring and control system using the same as above; FIG. 11 is an explanatory diagram of the operation of the remote monitoring and control system shown in FIG. 10. DESCRIPTION OF SYMBOLS 1... Case, 3... Circuit board, 4... Battery holder, 22... Translucent window, 41... Engaging leg, B... Secondary battery, SB... Solar cell, SW...Switch.

Claims (3)

[Claims] (1) In a wireless switch that transmits a wireless signal for load control to a wireless receiver that receives a wireless signal using light as a medium to control the load, light enters through a transparent window provided on the front of the case. A wireless switch characterized in that a solar cell that receives light to generate electricity and a secondary battery that is charged by the solar cell are built into a case, and the secondary battery is used as a driving power source for a circuit section. (2) A circuit board with a circuit mounted thereon is installed in the case so as to be approximately parallel to the front of the case, and the solar cell is placed in a battery holder placed between the inner peripheral surface of the case and the circuit board. 2. The wireless switch according to claim 1, wherein the battery holder is held between the battery holder and the inner circumferential surface of the case, and the battery holder includes an engaging leg that engages with a peripheral portion of the circuit board. (3) The wireless switch according to claim 1 or 2, characterized in that a switch is provided between the solar cell or the secondary battery and the circuit section.