TW201318018A - Three-way switch device with manual and automatic control and power detection - Google Patents

Abstract

A three-way switch device with manual and automatic control and power detection comprises: a first single pole double throw switch; a second single pole double throw switch; a double pole double throw relay; a detection feedback unit; and a control unit. Wherein, the first single pole double throw switch, the second single pole double throw switch and the double pole double throw relay are in series connection. The control unit is electrically connected to the double pole double throw relay used to control the on/off status of the double pole double throw relay. The detection feedback unit is electrically connected to the control unit and the series connection of the first single pole double throw switch 11, the double pole double throw relay 31, and the second single pole double throw switch 21 so as to detect the electrical conduction status of the series connection for status feedback to the control unit.

Description

Three-cut switch device with manual automatic control and power detection

The invention relates to a switch of an electronic circuit, in particular to a three-cut switch device with manual automatic control and power detection.

According to the conventional multi-cut switch, for example, the Chinese Patent No. 595802 discloses a mechanical switch capable of multi-point control of a circuit to open or close, mainly using a pair of synchronously actuated knives, and by two guides The staggered arrangement of the plates allows the contact points to be symmetrically arranged on both sides of each of the knives, so that the offset direction of the knives is exchanged for the series connection of the parallel wires.

However, such a structure is not applicable in situations where electronic control (such as remote control or computer control) is required. In the increasingly modernized modern life, many places need to be controlled by electronic control, which cannot be applied to The use of multi-cut switches for electronic control applications is greatly limited.

The main object of the present invention is to provide a three-cut switch device with manual automatic control and power detection, which can be applied to an electronic control occasion.

Another object of the present invention is to provide a three-cut switch device with manual automatic control and power detection, which can be manually switched or power-controlled, and is a multi-cut switch with both manual function and electronic control function.

In order to achieve the foregoing objective, a three-switching device with manual automatic control and power detection according to the present invention includes: a first single pole double throw switch; a second single pole double throw switch; and a double pole double throw a relay; a detection feedback unit; and a control unit; wherein the first single pole double throw switch, the second single pole double throw switch, and the double pole double throw relay are connected in series; the control unit is electrically connected to the a bipolar double throw relay for controlling a switching state of the bipolar double throw relay; the detecting feedback unit is electrically connected to the control unit, and electrically connected to the first single pole double throw switch 11 and the bipolar The series combination of the double throw relay 31 and the second single pole double throw switch 21 is used to detect the conduction state of the series combination and feed back the state to the control unit. Therefore, it can be applied not only to electronic control applications, but also to manual and electronic control switching functions.

In order to explain the structure and features of the present invention in detail, the following preferred embodiments are described with reference to the accompanying drawings, wherein, as shown in the first figure, a preferred embodiment of the present invention provides a manual automatic The control and power detection three-cut switch device 10 mainly includes a first single-pole double-throw switch 11, a second single-pole double-throw switch 21, and a double-pole double-throw relay (DPDT Relay) 31. A detection feedback unit 41 and a control unit 51 are formed, wherein the first single pole double throw switch 11, the second single pole double throw switch 21, and the double pole double throw relay 31 are connected in series.

The control unit 51 is electrically connected to the bipolar double throw relay 31 for controlling the switching state of the double pole double throw relay 31. In the embodiment, the control unit 51 is a conventional component, such as a programmable single chip, a microcomputer, a micro processing unit (MCU), etc., and thus its structure and detailed functions are not described.

The detection feedback unit 41 is electrically connected to the control unit 51, and is electrically connected to the series combination of the first single pole double throw switch 11, the double pole double throw relay 31, and the second single pole double throw switch 21. For detecting the conduction state of the series combination and feeding back the state to the control unit 51. In this embodiment, the detection feedback unit 41 is an optical coupling element.

The configuration of the first embodiment has been described above, and the operation state of the first embodiment will be described next.

Referring to the second figure, the first embodiment is connected to a light source 91 and a power source 93 as an example. The first single pole double throw switch 11 , the double pole double throw relay 31 , and the second single pole double throw switch 21 shown in the second figure are connected in series and in a conducting state. Therefore, the power of the power source 93 can pass through to cause the light source 91 to emit light.

In the on state of the second figure, if the user wants to turn off the light source 91, the first single pole double throw switch 11, the double pole double throw relay 31, or the second single pole double throw switch 21 can be changed. The light source 91 can be turned off by one of the conduction states. For example, taking the third figure as an example, after changing the state of the first single-pole double-throw switch 11, the first single-pole double-throw switch 11, the double-pole double-throw relay 31, and the second single-pole double-throw switch 21 The series combination is in an open state, and the power source 93 is therefore not able to be transmitted to the light source 91, whereby the effect of turning off the light source 91 is achieved.

For example, when the light source 91 is to be turned off in the state where the light source 91 is turned on in the second figure, the control unit 51 can also control the double-pole double-throw relay 31 to change the conduction state, as shown in the fourth figure. The series combination of the first single pole double throw switch 11, the double pole double throw relay 31, and the second single pole double throw switch 21 is in an open state, and thus the power source 93 cannot be transmitted to the light source 91, thereby The effect of turning off the light source 91 is achieved.

In the state shown in the third figure, the light source 91 is turned off. If the light source 91 is to be turned on again, the first single pole double throw switch 11 and the double pole double throw relay 31 can be similarly changed. The light source 91 can be turned on again by the conduction state of one of the two single-pole double-throw switch 21. For example, when the first single-pole double-throw switch 11 is switched back to the state of the second figure, the power of the power source 93 can be again transmitted to the light source 91. For another example, in the closed state of the third figure, the control unit 51 controls the double-pole double-throw relay 31 to change the conduction state, as shown in the fifth figure, at this time, the first single-pole double-throw switch 11 The series combination of the bipolar double throw relay 31 and the second single pole double throw switch 21 is in a path state, and the power source 93 can be transmitted to the light source 91, which is driven by the power source 93. Open.

When the double-pole double-throw relay 31 is controlled by the control unit 51, the state is detected by the detection feedback unit 41. When the series combination of the first single-pole double-throw switch 11, the double-pole double-throw relay 31, and the second single-pole double-throw switch 21 is in a path, the power supply is not detected at both ends of the feedback unit 41, so the inspection is performed. It is known that the feedback unit 41 does not operate. When the foregoing series combination is switched to the open state, for example, the first single-pole double-throw switch 11 is switched to the state shown in the third figure, the power source 93 cannot be transmitted to the light source 91. However, the power source 93 passes through The bipolar double throw relay 31 enters the detection feedback unit 41, and then forms a loop via the second single pole double throw switch 21, whereby the detection feedback unit 41 forms a voltage detection signal to the control unit. 51. Thereby, the control unit 51 can determine whether the light source 91 is currently in the off state by using the signal, and can also determine whether the operation of the double pole double throw relay 31 is correct.

It should be noted that the detection feedback unit 41 is an optical coupling component, which is merely an example in the embodiment, and is not limited to the optical coupling component, and other equivalent components can detect the conduction state, for example, A resistance voltage dividing unit, or a capacitive coupling element, or a transformer coupling, or a coil mutual inductance coupling element can provide a detection effect. These equivalent components are not described as they are conventional.

As can be seen from the above description, as long as the conduction state of one of the first single-pole double-throw switch 11, the double-pole double-throw relay 31, and the second single-pole double-throw switch 21 is changed, the series combination can be changed. The state of the path or open circuit. This shows that. The first embodiment can control the operation of turning on or off the bipolar double throw relay 31 in an electronically controlled manner, or manually switch the first single pole double throw switch 11 or the second single pole double throw switch 21 to switch. Operation, but a multi-cut switch with both manual and electronic control functions.

10. . . Three-cut switch device with manual automatic control and power detection

11. . . First single pole double throw switch

twenty one. . . Second single pole double throw switch

31. . . Bipolar double throw relay

41. . . Detection feedback unit

51. . . control unit

91. . . light source

93. . . power supply

The first figure is a schematic structural view of a preferred embodiment of the present invention.

The second drawing is a state diagram of a preferred embodiment of the present invention showing a state of being connected to a power source and a light source.

The third figure is an operational action diagram of a preferred embodiment of the present invention.

The fourth figure is another operational diagram of a preferred embodiment of the present invention.

Figure 5 is a further operational diagram of a preferred embodiment of the present invention.

10. . . Three-cut switch device with manual automatic control and power detection

11. . . First single pole double throw switch

twenty one. . . Second single pole double throw switch

31. . . Bipolar double throw relay

41. . . Detection feedback unit

51. . . control unit

Claims (2)

A three-switching device with manual automatic control and power detection includes: a first single pole double throw switch; a second single pole double throw switch; a double pole double throw relay; a detection feedback unit; and a control a unit; wherein the first single pole double throw switch, the second single pole double throw switch, and the double pole double throw relay are connected in series; the control unit is electrically connected to the double pole double throw relay to control the double a switching state of the pole double throw relay; the detecting feedback unit is electrically connected to the control unit, and electrically connected to the first single pole double throw switch 11, the double pole double throw relay 31, and the second single pole double A series combination of throw switches 21 is used to sense the conduction state of the series combination and feed back the status to the control unit. The three-switching device with manual automatic control and power detection according to the first aspect of the patent application, wherein: the detecting feedback unit is an optical coupling component, a resistor voltage dividing unit, a capacitive coupling component, and a One or a combination of transformer coupling, or a coil mutual inductance coupling element.