TWI636478B - Electromagnetic relay device and its control method - Google Patents

Abstract

An electromagnetic relay device and a control method thereof for separately supplying driving power to two electromagnetic relay units adjacent to each other through a control circuit, so that after the two electromagnetic relay units are respectively turned on, respectively providing a first sustain power smaller than a driving power And the second maintaining power is applied to the two electromagnetic relay units to maintain the two electromagnetic relay units respectively in an ON state, and when the electromagnetic relay unit receiving the second maintenance power trips due to environmental factors, receiving the electromagnetics of the second maintaining power The relay unit generates a tripping feedback signal to the control circuit, so that the control circuit increases the first maintaining power according to the tripping feedback signal, wherein the second maintaining power is less than or equal to the first maintaining power, so as to achieve improved receiving first The technical effect of maintaining the reliability of the electromagnetic relay unit of power.

Description

Electromagnetic relay device and control method thereof

The invention relates to a relay device and a control method thereof, in particular to an electromagnetic relay device and a control method thereof.

The control circuit of the conventional electromagnetic relay unit provides a sufficient driving power to the electromagnetic relay unit to turn on the electromagnetic relay unit, and in order to keep the electromagnetic relay unit in an on state, the control method of the conventional control circuit is The electromagnetic relay unit is continuously supplied with power for driving the electromagnetic relay unit to be turned on. However, the control method of such a conventional control circuit is quite power intensive.

In view of this, some manufacturers have proposed that the control circuit of the electromagnetic relay unit provides a maintenance power smaller than the driving power to the electromagnetic relay unit after the electromagnetic relay unit is turned on, so that the electromagnetic relay unit remains in the on state, thereby saving Power loss. However, the electromagnetic relay unit is susceptible to changes in the environment and affects its physical control characteristics. Therefore, it is difficult for the control circuit of the electromagnetic relay unit to more appropriately control the problem of the electromagnetic relay unit according to environmental changes.

In summary, it can be seen that in the prior art, the control circuit of the electromagnetic relay unit has long been difficult to properly control the electromagnetic relay unit according to the environmental change of the electromagnetic relay unit, thereby causing a problem of poor reliability of the electromagnetic relay unit. It is necessary to propose improved technical means to solve this problem.

The invention discloses an electromagnetic relay device and a control method thereof.

First, the present invention discloses an electromagnetic relay device comprising: two electromagnetic relay units and a control circuit. Wherein, the two electromagnetic relay units are the same type of electromagnetic relay units and adjacent to each other; the control circuit is connected to the two electromagnetic relay units. The control circuit is configured to separately provide driving power to the two electromagnetic relay units to respectively turn on the two electromagnetic relay units, respectively, and provide the first maintaining power and the second maintaining power to the two electromagnetic relay units respectively, so that the two electromagnetic relay units The on state is maintained, wherein the driving power is greater than the first maintaining power and the second maintaining power, and the second maintaining power is less than or equal to the first maintaining power. When the electromagnetic relay unit receiving the second maintaining power trips due to environmental factors, the electromagnetic relay unit receiving the second maintaining power generates a tripping feedback signal to the control circuit, so that the control circuit is adjusted according to the tripping feedback signal. The first maintenance power.

In addition, the present invention discloses a method for controlling an electromagnetic relay device, the method comprising: providing an electromagnetic relay device comprising two electromagnetic relay units and a control circuit, wherein the two electromagnetic relay units are the same type of electromagnetic relay units and mutually Adjacent, the control circuit is connected to the two electromagnetic relay units; the driving power is separately supplied to the two electromagnetic relay units through the control circuit, so that the two electromagnetic relay units are respectively turned on; the first maintaining power and the second maintaining power are respectively supplied through the control circuit Giving the two electromagnetic relay units to maintain the electromagnetic relay unit in an ON state, wherein the driving power is greater than the first maintaining power and the second maintaining power, the second maintaining power is less than or equal to the first maintaining power; and when receiving the second When the electromagnetic relay unit that maintains power trips due to environmental factors, the electromagnetic relay unit receiving the second maintenance power generates a tripping feedback signal to the control circuit, so that the control circuit increases the first maintaining power according to the tripping feedback signal. .

The system and method disclosed in the present invention are as above, and the difference from the prior art is that the present invention separately provides driving power to two electromagnetic relay units adjacent to each other through a control circuit, so that after the two electromagnetic relay units are respectively turned on, respectively Providing a first sustain power and a second sustain power that are smaller than the driving power to the two electromagnetic relay units, so that the two electromagnetic relay units are respectively maintained in an ON state, and the electromagnetic relay unit receiving the second sustain power is tripped due to environmental factors The electromagnetic relay unit receiving the second sustaining power generates a tripping feedback signal to the control circuit, so that the control circuit increases the first maintaining power according to the tripping feedback signal, wherein the second maintaining power is less than or equal to the first maintaining power. power.

Through the above technical means, the present invention can achieve the technical effect of improving the reliability of the electromagnetic relay unit receiving the first sustaining power.

10‧‧‧Sound sensing unit

20‧‧‧ Current sensing unit

30‧‧‧ Magnetic field sensing unit

50, 52‧‧‧Electromagnetic relay unit

60‧‧‧Control circuit

70‧‧‧ attitude sensing unit

80‧‧‧Temperature sensing unit

90‧‧‧load

100‧‧‧Electromagnetic relay

Step 210‧‧‧ provides an electromagnetic relay device comprising two electromagnetic relay units and a control circuit, the two electromagnetic relay units are the same type of electromagnetic relay units and adjacent to each other, and the control circuit is connected to the two electromagnetic relay units

Step 220‧‧‧ Providing driving power to the two electromagnetic relay units through the control circuit to make the two electromagnetic relay units respectively

Step 230‧‧‧ Providing the first sustaining power and the second maintaining power to the second electromagnetic relay unit through the control circuit, respectively, so that the two electromagnetic relay units are maintained in an on state, wherein the driving power is greater than the first maintaining power and the second maintaining Power, the second sustain power is less than or equal to the first sustain power

Step 240‧‧‧ When the electromagnetic relay unit receiving the second maintaining power trips due to environmental factors, the electromagnetic relay unit receiving the second maintaining power generates a tripping feedback signal to the control circuit, so that the control circuit is based on the trip The feedback signal is turned up to the first maintenance power

FIG. 1 is a schematic circuit diagram of an embodiment of an electromagnetic relay device of the present invention.

Fig. 2 is a circuit diagram showing another embodiment of the electromagnetic relay device of the present invention.

FIG. 3 is a flow chart of a method for controlling an electromagnetic relay device according to an embodiment of the present invention.

The embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, so that the application of the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Please refer to "FIG. 1", "FIG. 1" is a circuit diagram of an embodiment of an electromagnetic relay device of the present invention. The electromagnetic relay device 100 includes: an electromagnetic relay unit 50, an electromagnetic relay unit 52, and control Circuitry 60. The electromagnetic relay unit 50 and the electromagnetic relay unit 52 are the same type of electromagnetic relay units and are adjacent to each other, and the control circuit 60 is connected to the electromagnetic relay unit 50 and the electromagnetic relay unit 52. In the present embodiment, the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are connected in parallel with each other and connected to the control circuit 60. In more detail, one end of the electromagnetic relay unit 50 is connected to the control circuit 60, and the other end of the electromagnetic relay unit 50 is connected. Connected to the load 90, both ends of the electromagnetic relay unit 52 are connected to the control circuit 60, and the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are connected in parallel with each other.

In this embodiment, the number of electromagnetic relay units may be, but not limited to, two, and may be adjusted according to actual needs. It should be noted that the electromagnetic relay device 100 includes at least two electromagnetic relay units, at least one of the electromagnetic relay units is configured to transmit a vibration feedback signal, and the other electromagnetic relay units are used to connect the load. Details are detailed later.

The control circuit 60 is configured to individually provide driving power to the electromagnetic relay unit 50 and the electromagnetic relay unit 52 to electrically connect the electromagnetic relay unit 50 and the electromagnetic relay unit 52, respectively. Thereafter, the control circuit 60 provides the first sustaining power to the electromagnetic relay unit 50, and provides the second sustaining power to the electromagnetic relay unit 52, so that the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively maintained in an on state, wherein the driving The power is greater than the first maintaining power and the second maintaining power, and the second maintaining power is less than or equal to the first maintaining power. In the present embodiment, since the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are connected in parallel with each other and connected to the control circuit 60, the second sustain power is equal to the first sustain power.

When the electromagnetic relay unit 52 receiving the second maintenance power trips due to environmental factors, the electromagnetic relay unit 52 receiving the second maintenance power generates a trip feedback signal to the control circuit 60, so that the control circuit 60 is detached according to the jumpback. The signal number is increased by the first maintenance power. The trip signal can be an interrupt signal or a polling signal. In more detail, when the control circuit 60 periodically detects whether the electromagnetic relay unit 52 generates a trip signal. When the trip signal is available, it can be round The control signal 60 can be, but is not limited to, 1 millisecond (millisecond, ms); when the control circuit 60 does not continuously detect whether the electromagnetic relay unit 52 generates a tripping feedback signal (ie, the control circuit 60 passively notifies the electromagnetic relay) The unit 52 generates a tripping feedback signal, and the tripping back signal can be an interrupt signal. Among them, environmental factors can be, but are not limited to, vibration, which can be adjusted according to actual needs. For example, environmental factors can be electromagnetic fields or temperatures.

In this embodiment, since the second sustaining power is equal to the first maintaining power, so that the electromagnetic relay unit 52 receiving the second maintaining power trips due to environmental factors, the electromagnetic relay unit 50 receiving the first maintaining power is also The control circuit 60 of the present embodiment is configured to increase the first maintaining power according to the tripping feedback signal. The electromagnetic relay unit 50 and the electromagnetic relay unit 52 are tripped due to environmental factors. The control circuit 60 separately drives the electromagnetic relay unit 50 and the electromagnetic relay unit 52 to be respectively turned on, and then the control circuit 60 increases the previous first maintaining power/second maintaining power according to the tripping feedback signal to make the electromagnetic relay The electric unit 50 and the electromagnetic relay unit 52 are respectively maintained in an on state to prevent the electromagnetic relay unit 50 and the electromagnetic relay unit 52 from jumping due to the same environmental factor, thereby improving the electromagnetic relay unit receiving the first maintenance power. Reliability of the electromagnetic relay unit connected to the load.

In the present embodiment, the electromagnetic relay unit 50 and the electromagnetic relay unit 52 may be, but not limited to, a DC electromagnetic relay unit. When the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are DC electromagnetic relay units, the control circuit 60 may first provide a DC driving voltage to the electromagnetic relay unit 50 and the electromagnetic relay unit 52 to provide sufficient driving power to drive. The electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively connected to the electromagnetic relay unit 50 and the electromagnetic relay unit 52, wherein the voltage value of the DC driving voltage can be, but not limited to, 8 volts (Voltage, V). The voltage value of the DC drive voltage may vary depending on the DC electromagnetic relay unit of different types. Since the electromagnetic relay unit is turned on, only a certain amount of sustain power (less than the driving power) is required to maintain the on state. Therefore, in order to avoid power loss, the electromagnetic relay unit is After the electromagnetic relay unit 52 and the electromagnetic relay unit 52 are respectively turned on, the control circuit 60 can respectively provide the first sustain power and the second sustain power smaller than the driving power to the electromagnetic relay unit 50 and the electromagnetic relay unit 52, so that the electromagnetic relay unit 50 The electromagnetic relay unit 52 is maintained in an ON state. The control circuit 60 can provide the first sustain power and the second sustain power by a step-down voltage mode or a pulse width modulation (PWM) mode.

When the control circuit 60 provides the first sustain power and the second sustain power by the step-down voltage mode, the control circuit 60 divides the original DC drive voltage into segments to step down the voltage value, and adjusts each of the voltages. The phase is maintained for a certain period of time, and until the voltage value can provide the first sustain power and the second sustain power, the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively maintained in an ON state.

When the control circuit 60 provides the first sustain power and the second sustain power by the PWM mode, the control circuit 60 provides the first sustain power and the second sustain power to the electromagnetic relay unit 50 and the electromagnetic relay unit 52 by using the PWM signal. The electromagnetic relay unit 50 and the electromagnetic relay unit 52 are maintained in an ON state, respectively. In this embodiment, the average voltage value of the PWM signal may be, but not limited to, 2V, the duty cycle may be, but not limited to, 25%, and the frequency may be, but not limited to, 20 kilohertz (Kilo Hertz, KHz), The embodiments are not intended to limit the invention, but may vary depending on the needs of the actual electromagnetic relay unit.

In addition, since the posture of the electromagnetic relay device 100 is different, the gravity is different for the influence of the electromagnetic relay device 100 due to environmental factors. Therefore, the electromagnetic relay device 100 may further include the attitude sensing unit 70, and the connection control The circuit 60 is configured to sense the attitude of the electromagnetic relay device 100. When the attitude sensing unit 70 senses the change of the posture of the electromagnetic relay device 100, the attitude feedback signal is output to the control circuit 60, so that the control circuit 60 according to the posture The feedback signal adjusts the first maintaining power and the second maintaining power. When the attitude of the electromagnetic relay device 100 increases the influence of gravity, the control circuit 60 increases the first maintaining power and the second maintaining power; when the posture of the electromagnetic relay device 100 reduces the influence of gravity, the control circuit 60 drops Low first maintaining power and second maintaining power, thereby adjusting a sensing threshold of the electromagnetic relay unit 52 receiving the second maintaining power (the magnitude of the second maintaining power is positively correlated with the magnitude of the sensing threshold), and increasing The reliability of the electromagnetic relay unit 50 (electromagnetic relay unit connected to the load) that receives the first sustain power.

Furthermore, since the temperature affects the coil characteristics of the electromagnetic relay unit, the electromagnetic relay device 100 may also include a temperature sensing unit 80 connected to the control circuit 60 for sensing the temperature of the electromagnetic relay device 100 when the temperature When sensing the temperature change of the electromagnetic relay device 100, the sensing unit 80 outputs a temperature feedback signal to the control circuit 60, so that the control circuit 60 adjusts the first maintaining power and the second maintaining power according to the temperature feedback signal. When the temperature of the electromagnetic relay device 100 increases, the control circuit 60 increases the first maintaining power and the second maintaining power; when the temperature of the electromagnetic relay device 100 decreases, the control circuit 60 decreases the first maintaining power and the second maintaining Power, thereby adjusting a sensing threshold of the electromagnetic relay unit 52 receiving the second sustaining power (the magnitude of the second maintaining power is positively correlated with the magnitude of the sensing threshold), and increasing the electromagnetic relay receiving the first maintaining power The reliability of unit 50 (electromagnetic relay unit connected to the load).

Wherein, when the temperature of the electromagnetic relay device 100 is too high and/or the amount of shock received is too large, the control circuit 60 can determine the electromagnetic relay unit 50 and the electromagnetic relay unit 52 according to the temperature feedback signal and/or the vibration feedback signal. If the coil of the electromagnetic relay unit 50 and the electromagnetic relay unit 52 exceeds the rated use specification, the control circuit 60 can immediately notify the upper system (not drawn), so that the upper system takes the necessary manner, for example, : Reduce system load, or control the amount of vibration, temperature, electromagnetic field of the environment to avoid danger and increase the reliability of the overall system.

In this embodiment, the electromagnetic relay device 100 may include other sensors, such as the sound sensing unit 10, the current sensing unit 20, and the magnetic field, in addition to the temperature sensing unit 80 and the attitude sensing unit 70. The sensing unit 30 is configured to adjust the first maintaining power and the second maintaining power according to the feedback signals transmitted by the sensors to increase the electromagnetic relay unit 50 (the power connected to the load) Reliability of the magnetic relay unit). In more detail, when the electromagnetic relay device 100 includes the sound sensing unit 10 connected to the control circuit 60, the sound sensing unit 10 is configured to sense whether the electromagnetic relay unit 52 generates a bouncing sound, if the sound sensing unit 10 senses The electromagnetic detecting relay unit 52 generates a bouncing sound (that is, the electromagnetic relay unit 52 has tripped), and outputs a sound feedback signal to the control circuit 60, so that the control circuit 60 raises the first maintaining power and the second according to the sound feedback signal. Maintain power. When the electromagnetic relay device 100 includes the current sensing unit 20 that connects the control circuit 60 and the electromagnetic relay unit 50, the current sensing unit 20 determines the load of the electromagnetic relay unit 50 by sensing the load current of the electromagnetic relay unit 50. Whether the contact shrapnel is in poor contact or tripping, if the current sensing unit 20 determines that the load contact shrapnel of the electromagnetic relay unit 50 is in poor contact or tripped (ie, the load current generates a short-term change), the output current feedback signal is given. The control circuit 60 causes the control circuit 60 to increase the first sustain power and the second sustain power according to the current feedback signal. When the electromagnetic relay device 100 includes the magnetic field sensing unit 30 connected to the control circuit 60, the magnetic field sensing unit 30 is used to sense the magnetic field of the electromagnetic relay device 100, and if the magnetic field sensing unit 30 senses the electromagnetic relay device 100 The magnetic field changes to generate a magnetic field feedback signal to the control circuit 60, so that the control circuit 60 adjusts the first maintaining power and the second maintaining power according to the current feedback signal (when the magnetic field of the electromagnetic relay device 100 becomes large, the control circuit 60) The first sustain power and the second sustain power are increased; when the magnetic field of the electromagnetic relay device 100 becomes small, the control circuit 60 decreases the first sustain power and the second sustain power).

The sound sensing unit 10, the current sensing unit 20, the magnetic field sensing unit 30, the attitude sensing unit 70, and the temperature sensing unit 80 can be manufactured by, but not limited to, a Micro Electro Mechanical Systems (MEMS) process. The sensor is used to save power consumption.

Please refer to "FIG. 2", which is a circuit diagram of another embodiment of the electromagnetic relay device of the present invention. The main difference between this embodiment and the previous embodiment lies in the electromagnetic relay unit 50 and The electromagnetic relay unit 52 is independently connected to the control circuit 60 (the electromagnetic relay unit 50 and the electromagnetic relay unit 52 of the previous embodiment are connected in parallel with each other and connected to the control circuit 60).

The control circuit 60 is configured to individually provide driving power to the electromagnetic relay unit 50 and the electromagnetic relay unit 52 to electrically connect the electromagnetic relay unit 50 and the electromagnetic relay unit 52, respectively. Thereafter, the control circuit 60 provides the first sustaining power to the electromagnetic relay unit 50, and provides the second sustaining power to the electromagnetic relay unit 52, so that the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively maintained in an on state, wherein the driving The power is greater than the first maintaining power and the second maintaining power, and the second maintaining power is less than or equal to the first maintaining power. In the present embodiment, since the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are independently connected to the control circuit 60, the second sustaining power may be smaller than the first maintaining power.

When the electromagnetic relay unit 52 receiving the second maintaining power trips due to environmental factors, the electromagnetic relay unit 52 receiving the second maintaining power generates a tripping feedback signal to the control circuit, so that the control circuit 60 is based on the trip feedback. The signal is turned up to the first to maintain power.

In this embodiment, since the second sustaining power is less than the first maintaining power, so that the electromagnetic relay unit 52 receiving the second maintaining power trips, the electromagnetic relay unit 50 receiving the first maintaining power does not trip. Therefore, the control circuit 60 according to the embodiment adjusts the first sustain power according to the trip feedback signal. After the electromagnetic relay unit 52 trips, the control circuit 60 increases the previous first sustain power according to the vibration feedback signal. The electromagnetic relay unit 50 is maintained in an on state to prevent the electromagnetic relay unit 50 from encountering the same situation and tripping, thereby improving the electromagnetic relay unit (electromagnetic relay unit connected to the load) receiving the first maintenance power. Reliability. It should be noted that, when the control circuit 60 raises the previous first sustain power according to the trip feedback signal to maintain the electromagnetic relay unit 50 in the ON state, the control circuit 60 can also re-provide the driving power to the electromagnetic relay unit 52. So that the electromagnetic relay unit 52 is turned on, after which the control circuit 60 raises the previous second sustain power to maintain the electromagnetic relay unit 52 in an on state, wherein The second second sustain power is still less than the first boost power after the boost. That is, each time the electromagnetic relay unit 52 trips due to environmental factors, the control circuit 60 can increase the first maintaining power and the second maintaining power according to the tripping feedback signal to avoid the electromagnetic relay unit 50 and the electromagnetic The relay unit 52 trips due to the same situation, thereby adjusting the sensing threshold of the electromagnetic relay unit 52 receiving the second sustaining power (the magnitude of the second maintaining power is positively correlated with the magnitude of the shock sensing threshold), and The reliability of the electromagnetic relay unit (electromagnetic relay unit connected to the load) that receives the first sustain power is improved.

In the embodiment, the two electromagnetic relay units 50 may be, but not limited to, an alternating current electromagnetic relay unit. When the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are AC electromagnetic relay units, the control circuit 60 may first provide an alternating current signal to the electromagnetic relay unit 50 and the electromagnetic relay unit 52 to provide sufficient driving power to drive. The electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively connected to the electromagnetic relay unit 50 and the electromagnetic relay unit 52. Thereafter, the control circuit 60 provides the first maintenance by reducing the amplitude or frequency of the alternating current signal. The power and the second sustaining power (less than the driving power) are supplied to the electromagnetic relay unit 50 and the electromagnetic relay unit 52, so that the electromagnetic relay unit 50 and the electromagnetic relay unit 52 are respectively maintained in an ON state, thereby avoiding loss of power. The AC signal can be a general AC signal or a half-wave rectified signal output by a general-purpose AC signal after being rectified by a half-wave rectifier; the amplitude of the amplitude of the AC signal is proportional to the energy of the AC signal; the frequency of the AC signal and the AC signal The energy is in a positive linear relationship.

Next, please refer to FIG. 3, which is a flowchart of a method for controlling an electromagnetic relay device according to an embodiment of the present invention. The method includes the steps of: providing an electromagnetic relay device including two electromagnetic relay units and The control circuit, the two electromagnetic relay units are the same type of electromagnetic relay units and adjacent to each other, the control circuit is connected to the two electromagnetic relay units (step 210); the drive power is separately supplied to the two electromagnetic relay units through the control circuit to make the two electromagnetic The relay units are respectively turned on (step 220); the first maintaining power and the second maintaining power are respectively supplied to the two electromagnetic relay units through the control circuit to make the two electromagnetic relay units Holding an on state, wherein the driving power is greater than the first maintaining power and the second maintaining power, the second maintaining power is less than or equal to the first maintaining power (step 230); and when receiving the second maintaining power of the electromagnetic relay unit due to the environment When the factor trips, the electromagnetic relay unit receiving the second maintaining power generates a tripping feedback signal to the control circuit, so that the control circuit increases the first maintaining power according to the tripping feedback signal (step 240). Through the above steps, the driving power can be separately supplied to the two electromagnetic relay units through the control circuit to turn on the two electromagnetic relay units respectively, and then provide the first maintaining power and the second maintaining power smaller than the driving power to the two electromagnetic relays respectively. The unit maintains the two electromagnetic relay units in an on state. When the electromagnetic relay unit receiving the second maintenance power trips due to environmental factors, the electromagnetic relay unit receiving the second maintenance power generates a tripping feedback signal to the control unit. The circuit causes the control circuit to increase the first sustain power according to the trip feedback signal to achieve the technical effect of improving the reliability of the electromagnetic relay unit receiving the first sustain power.

Wherein, when the two electromagnetic relay units are connected in parallel with each other and connected to the control circuit, the second maintaining power is equal to the first maintaining power. When the two electromagnetic relay units are independently connected to the control circuit, the second maintaining power may be less than or equal to the first maintaining power.

In addition, in the embodiment, the step of providing the first sustaining power and the second maintaining power to the two electromagnetic relay units respectively through the control circuit may further include: providing, by the control circuit, the first maintaining power and the PWM mode respectively. The second sustain power is supplied to the two electromagnetic relay units. The detailed description has been described in the above paragraphs and will not be described again.

In addition, in the embodiment, the electromagnetic relay device control method may further include: providing the attitude sensing unit to sense the posture of the electromagnetic relay device, wherein the attitude sensing unit is connected to the control circuit; and when the attitude sensing When the unit senses the change of the posture of the electromagnetic relay device, the attitude feedback signal is output to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the attitude feedback signal. The detailed description has been described in the above paragraphs and will not be described again.

Next, in this embodiment, the electromagnetic relay device control method, the method further comprising: providing the temperature sensing unit to sense the temperature of the electromagnetic relay device, wherein the temperature sensing unit is connected to the control circuit; and when the temperature sensing When the unit senses the temperature change of the electromagnetic relay device, the temperature feedback signal is output to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the temperature feedback signal. The detailed description has been described in the above paragraphs and will not be described again.

Furthermore, in the embodiment, the electromagnetic relay device control method may further include: providing the sound sensing unit to sense whether the electromagnetic relay unit receiving the second maintaining power generates a bouncing sound, wherein the sound sensing unit Connecting the control circuit; and when the sound sensing unit senses that the electromagnetic relay unit receiving the second sustaining power generates a bouncing sound, the sound sensing unit outputs a sound feedback signal to the control circuit, so that the control circuit increases the sound according to the sound feedback signal The first sustain power and the second sustain power. The detailed description has been described in the above paragraphs and will not be described again.

Furthermore, in the embodiment, the electromagnetic relay device control method may further include: providing the current sensing unit to determine the electromagnetic successor receiving the first maintaining power through the load current of the electromagnetic relay unit receiving the first maintaining power Whether the load contact shrapnel of the electric unit is in poor contact or tripping, wherein the current sensing unit is connected to the control circuit and the electromagnetic relay unit receiving the first maintaining power; and when the current sensing unit determines that the load contact shrapnel is in poor contact or jumps When off, the current sensing unit outputs a current feedback signal to the control circuit, so that the control circuit increases the first maintaining power and the second maintaining power according to the current feedback signal. The detailed description has been described in the above paragraphs and will not be described again.

In addition, in this embodiment, the electromagnetic relay device control method may further include: providing a magnetic field sensing unit to sense a magnetic field of the electromagnetic relay device, wherein the magnetic field sensing unit is connected to the control circuit; and when the magnetic field sense When the measuring unit senses a change in the magnetic field of the electromagnetic relay device, the output magnetic field is returned The signal is given to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the magnetic field feedback signal. The detailed description has been described in the above paragraphs and will not be described again.

In summary, it can be seen that the difference between the present invention and the prior art is that the driving power is separately supplied to the two electromagnetic relay units adjacent to each other through the control circuit to respectively provide the two electromagnetic relay units respectively, and then respectively provide less than the driving power. The first sustaining power and the second maintaining power are supplied to the two electromagnetic relay units to maintain the two electromagnetic relay units in an on state, wherein the second maintaining power is less than or equal to the first maintaining power, by avoiding power consumption; When the second sustaining power electromagnetic relay unit trips due to environmental factors, the electromagnetic relay unit receiving the second maintaining power generates a tripping feedback signal to the control circuit, so that the control circuit increases the first according to the tripping feedback signal. By maintaining the power, the technical problems of the prior art can be solved by the technical means, thereby achieving the technical effect of improving the reliability of the electromagnetic relay unit receiving the first sustaining power.

Furthermore, the sensing threshold of the electromagnetic relay unit receiving the second sustaining power can be adjusted through the configuration of the temperature sensing unit, the attitude sensing unit, the sound sensing unit, the current sensing unit or the magnetic field sensing unit, and The reliability of the electromagnetic relay unit receiving the first sustain power is increased.

While the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

Claims (19)

An electromagnetic relay device comprising: two electromagnetic relay units, which are electromagnetic relay units of the same type and adjacent to each other; and a control circuit connecting the two electromagnetic relay units for individually providing a driving power to the The two electromagnetic relay units are respectively configured to provide a first sustaining power and a second sustaining power to the two electromagnetic relay units respectively after the two electromagnetic relay units are respectively turned on, so that the two electromagnetic relay units are respectively maintained a state in which the driving power is greater than the first maintaining power and the second maintaining power, the second maintaining power being less than or equal to the first maintaining power; wherein the electromagnetic relay unit receiving the second maintaining power When the circuit is tripped due to an environmental factor, the electromagnetic relay unit receiving the second maintaining power generates a hopping back signal to the control circuit, so that the control circuit increases the first maintenance according to the tripping feedback signal. power. The electromagnetic relay device of claim 1, wherein the second sustaining power is equal to the first maintaining power when the two electromagnetic relay units are connected in parallel with each other and connected to the control circuit. The electromagnetic relay device of claim 1, wherein the second sustaining power is less than or equal to the first maintaining power when the two electromagnetic relay units are independently connected to the control circuit. According to the electromagnetic relay device of claim 1, wherein the two electromagnetic relay units are all AC electromagnetic relay units or both are DC electromagnetic relay units. The electromagnetic relay device according to claim 1, wherein the control circuit provides the first sustain power and the second sustain power in a step-down voltage mode or a pulse width modulation (PWM) mode. . The electromagnetic relay device of claim 1, wherein the electromagnetic relay device further comprises an attitude sensing unit coupled to the control circuit for sensing a posture of the electromagnetic relay device when the attitude sensing unit When sensing the change of the posture of the electromagnetic relay device, outputting a posture feedback signal to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the posture feedback signal. The electromagnetic relay device of claim 1, wherein the electromagnetic relay device further comprises a temperature sensing unit connected to the control circuit for sensing the temperature of the electromagnetic relay device, when the temperature sensing unit When sensing the temperature change of the electromagnetic relay device, a temperature feedback signal is output to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the temperature feedback signal. The electromagnetic relay device of claim 1, wherein the electromagnetic relay device further comprises a sound sensing unit for connecting the control circuit and sensing whether the electromagnetic relay unit receiving the second maintaining power is Generating a bouncing sound, and when the sound sensing unit senses that the electromagnetic relay unit receiving the second maintaining power generates a bouncing sound, the sound sensing unit outputs a sound feedback signal to the control circuit, so that the control circuit is based on The sound feedback signal increases the first maintaining power and the second maintaining power. The electromagnetic relay device of claim 1, wherein the electromagnetic relay device further comprises a current sensing unit for connecting the control circuit and the electromagnetic relay unit receiving the first maintaining power, and receiving the electromagnetic relay unit The first sustaining power of the electromagnetic relay A load current of the unit determines whether a load contact shrapnel of the electromagnetic relay unit receiving the first sustaining power is in poor contact or tripping, and when the current sensing unit determines that the load contact shrapnel is in poor contact or tripped, The current sensing unit outputs a current feedback signal to the control circuit, so that the control circuit increases the first maintaining power and the second maintaining power according to the current feedback signal. The electromagnetic relay device of claim 1, wherein the electromagnetic relay device further comprises a magnetic field sensing unit for connecting the control circuit and sensing a magnetic field of the electromagnetic relay device. When the measuring unit senses the change of the magnetic field of the electromagnetic relay device, it outputs a magnetic field feedback signal to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the magnetic field feedback signal. An electromagnetic relay device control method, the method comprising: providing an electromagnetic relay device comprising two electromagnetic relay units and a control circuit, wherein the two electromagnetic relay units are the same type of electromagnetic relay units and adjacent to each other, The control circuit is connected to the two electromagnetic relay units; a driving power is separately supplied to the two electromagnetic relay units through the control circuit, so that the two electromagnetic relay units are respectively turned on; respectively, a first maintenance is provided through the control circuit The power and a second sustaining power are supplied to the two electromagnetic relay units to maintain the two electromagnetic relay units respectively in an ON state, wherein the driving power is greater than the first maintaining power and the second maintaining power, the second maintaining The power is less than or equal to the first maintaining power; and when the electromagnetic relay unit receiving the second maintaining power trips due to an environmental factor, the electromagnetic relay unit receiving the second maintaining power generates a jump back Grant The control circuit is configured to cause the control circuit to increase the first sustain power according to the vibration feedback signal. According to the electromagnetic relay device control method of claim 11, wherein the step of providing the first sustain power and the second sustain power to the two electromagnetic relay units respectively through the control circuit further comprises: transmitting the The control circuit provides the first sustain power and the second sustain power to the two electromagnetic relay units in a Pulse Width Modulation (PWM) mode or a stepped down voltage mode, respectively. The electromagnetic relay device control method according to claim 11, wherein the second sustaining power is equal to the first maintaining power when the two electromagnetic relay units are connected in parallel with each other and connected to the control circuit. The electromagnetic relay device control method according to claim 11, wherein the second sustaining power is less than or equal to the first maintaining power when the two electromagnetic relay units are independently connected to the control circuit. The electromagnetic relay device control method according to claim 11 , wherein the electromagnetic relay device control method further comprises: providing an attitude sensing unit to sense a posture of the electromagnetic relay device, wherein the attitude sensing unit is connected The control circuit; and when the attitude sensing unit senses a change in the posture of the electromagnetic relay device, outputting a posture feedback signal to the control circuit, so that the control circuit adjusts the first maintenance according to the posture feedback signal Power and the second sustain power. According to the electromagnetic relay device control method of claim 11, wherein the electromagnetic relay device control method further comprises: Providing a temperature sensing unit that senses a temperature of the electromagnetic relay device, wherein the temperature sensing unit is coupled to the control circuit; and when the temperature sensing unit senses a change in temperature of the electromagnetic relay device, outputting a The temperature feedback signal is sent to the control circuit, so that the control circuit adjusts the first maintaining power and the second maintaining power according to the temperature feedback signal. The electromagnetic relay device control method according to claim 11, wherein the electromagnetic relay device control method further comprises: providing a sound sensing unit to sense whether the electromagnetic relay unit receiving the second sustaining power generates a bouncing sound The sound sensing unit is connected to the control circuit; and when the sound sensing unit senses that the electromagnetic relay unit receiving the second maintaining power generates a bouncing sound, the sound sensing unit outputs a sound feedback signal The control circuit is configured to cause the control circuit to increase the first maintaining power and the second maintaining power according to the sound feedback signal. According to the electromagnetic relay device control method of claim 11, wherein the electromagnetic relay device control method further comprises: providing a current sensing unit to determine a load current of the electromagnetic relay unit receiving the first maintaining power Receiving, by the current sensing unit, the control circuit and the electromagnetic relay unit receiving the first sustaining power; as well as When the current sensing unit determines that the load contact spring is poorly contacted or tripped, the current sensing unit outputs a current feedback signal to the control circuit, so that the control circuit increases the first according to the current feedback signal. Maintaining power and the second sustain power. The electromagnetic relay device control method according to claim 11, wherein the electromagnetic relay device control method further comprises: providing a magnetic field sensing unit to sense a magnetic field of the electromagnetic relay device, wherein the magnetic field sensing unit is connected The control circuit; and when the magnetic field sensing unit senses a change in the magnetic field of the electromagnetic relay device, outputting a magnetic field feedback signal to the control circuit, so that the control circuit adjusts the first maintenance according to the magnetic field feedback signal Power and the second sustain power.