Control circuit for a spring operated electric operating mechanism and spring operated electric operating mechanism

Abstract

The application relates to a control circuit of an energy storage type electric operating mechanism and the energy storage type electric operating mechanism, and relates to the field of energy storage type electric operating mechanisms. The control circuit comprises a first relay circuit and a second relay circuit; the first relay circuit is used for controlling a motor in the energy storage type electric operating mechanism, and the second relay circuit is used for controlling an electromagnet in the energy storage type electric operating mechanism. The first relay circuit for adapting the motor and the second relay circuit for adapting the electromagnet are distributed in the control circuit. During use of the energy storage type electric operating mechanism, a capacitor and a resistor are arranged in correspondence with the first relay and the second relay, so that when a small signal is received, the relay does not act, the possibility that the electric operating mechanism operates in a non-control state is eliminated, and the safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage type electric operating mechanism, in particular to a control circuit of an energy storage type electric operating mechanism and the energy storage type electric operating mechanism. BACKGROUND

[0002] At present, the energy storage type electric operating mechanism is an internationally widely used and technically advanced electric operating mechanism, which can drive the closing of the circuit breaker through the pre-energy storage of the energy storage mechanism to achieve the effect of fast closing.

[0003] In the related art, the energy storage type electric operating mechanism receives a signal remotely sent by a user and controls a relay in the control circuit based on the signal. The energy storage type electric operating mechanism usually includes a motor and an electromagnet. By controlling the energy storage type electric operating mechanism, the motor and the electromagnet can perform corresponding actions to realize different functions of the operating mechanism.

[0004] However, in actual operation, due to various problems such as induced current of external circuit signal or pulse signal caused by user's misoperation, invalid signals that trigger the electric operating operation may exist in the external control circuit, and thus the electric operating mechanism may operate in a non-controlled state. SUMMARY

[0005] The present application relates to a control circuit of an energy storage type electric operating mechanism and the energy storage type electric operating mechanism, which can eliminate invalid signals and eliminate the possibility of the electric operating mechanism operating in a non-controlled state. The technical solution is as follows:

[0006] On the one hand, a control circuit of an energy storage type electric operating mechanism is provided, which includes a first relay circuit and a second relay circuit.

[0007] The first relay circuit is used to control a motor in the energy storage type electric operating mechanism, and the second relay circuit is used to control an electromagnet in the energy storage type electric operating mechanism.

[0008] The first relay circuit includes a first relay, a first resistor, a first capacitor, and a first relay circuit interface.

[0009] The first relay circuit interface is connected with the first relay.

[0010] The first relay includes a first relay function part and a first relay switch.

[0011] The first relay function part is connected in parallel with the first capacitor and the first resistor.

[0012] The second relay circuit comprises a second relay, a second resistor, a third resistor, a second capacitor and a second relay circuit interface;

[0013] The second relay circuit interface is connected with the second relay.

[0014] The second relay function part is connected in parallel with the third resistor and the second capacitor, and connected in series with the second resistor.

[0015] In another aspect, the application provides an energy storage type electric operating mechanism, which comprises the control circuit, the power supply circuit and the electric appliance circuit of the energy storage type electric operating mechanism.

[0016] The power supply circuit and the electric appliance circuit are connected with the control circuit respectively.

[0017] The power supply circuit comprises a power switch, which is connected with the control circuit.

[0018] The electric appliance circuit comprises a motor sub-circuit and an electromagnet sub-circuit.

[0019] The motor sub-circuit comprises a motor and a motor lead wire, and the motor is connected with the first relay circuit through the motor lead wire.

[0020] The electromagnet sub-circuit comprises an electromagnet and an electromagnet lead wire, and the electromagnet is connected with the second relay circuit through the electromagnet lead wire.

[0021] The technical scheme provided by the application has at least the following beneficial effects:

[0022] According to the actual situation that the energy storage type electric operating mechanism comprises a motor and an electromagnet, the first relay circuit for adapting the motor and the second relay circuit for adapting the electromagnet are distributed in the control circuit. During the use of the energy storage type electric operating mechanism, the combination of the capacitor and the resistor arranged in the first relay and the second relay can prevent the relay from operating when a small signal is received, so as to prevent misoperation, eliminate the possibility of the electric operating mechanism operating in a non-control condition, and increase the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0024] Figure 1 A structure diagram of a control circuit of an energy storage type electric operating mechanism is shown.

[0025] Figure 2 Fig. 2 shows a structural schematic diagram of a control circuit of another energy storage type electric operating mechanism provided by an example embodiment of the present application.

[0026] Figure 3 Fig. 2 shows a structural schematic diagram of a control circuit of another energy storage type electric operating mechanism provided by an example embodiment of the present application.

[0027] Figure 4 Fig. 2 shows a structural schematic diagram of a control circuit of another energy storage type electric operating mechanism provided by an example embodiment of the present application.

[0028] Figure 5 Fig. 1 shows a structural schematic diagram of an energy storage type electric operating mechanism provided by an example embodiment of the present application.

[0029] The signs in the drawings are as follows:

[0030] 1 - energy storage type electric operating mechanism.

[0031] 11 - control circuit, 12 - power supply circuit, 13 - electric appliance circuit, 14 - wire coil.

[0032] 111 - first relay circuit, 112 - second relay circuit.

[0033] 1111 - first relay, 1112 - first resistor, 1113 - first capacitor, 1114 - first relay circuit interface, 1116 - first relay switch, 1115 - first relay function part, 1117 - first diode, 1118 - second diode.

[0034] 1121 - second relay, 1122 - second resistor, 1123 - third resistor, 1124 - second capacitor, 1125 - second relay circuit interface, 1126 - second relay function part, 1127 - second relay switch, 1128 - third diode, 1129 - fourth diode.

[0035] 121 - power supply switch.

[0036] 1211 - first micro switch, 1212 - second micro switch, 1213 - third micro switch.

[0037] 131 - motor sub-circuit, 132 - electromagnet sub-circuit.

[0038] 1311 - motor, 1312 - motor lead wire.

[0039] 1321 - electromagnet, 1322 - electromagnet lead wire. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0041] Firstly, the terms involved in the embodiments of the present application will be briefly introduced:

[0042] The electric operating mechanism is one of the external components of the air switch, which is used to remotely realize the automatic opening and closing of the circuit breaker.

[0043] The energy storage type electric operating mechanism described in the present application is a branch category of electric operating mechanisms. In the energy storage type electric operating mechanism, generally includes a motor and an electromagnet, wherein the motor drives the reducer and the energy storage component in the energy storage process, so that the spring in the electric operating mechanism is energized, and the electromagnet is the energy storage component on the potential energy mechanism. The control principle of the electric operating mechanism is that the relay is used to control the large load user with a small load, so in the energy storage type electric operating mechanism described in the present application, the opening and closing of the relay is also used to control the start and stop of the motor and the electromagnet.

[0044] Figure 1 The structure schematic diagram of the control circuit 11 of the energy storage type electric operating mechanism provided by an exemplary embodiment of the present application is shown in FIG. 1. Please refer to Figure 1 The control circuit 11 of the energy storage type electric operating mechanism includes a first relay circuit 111 and a second relay circuit 112. The first relay circuit 111 is used to control the motor in the energy storage type electric operating mechanism, and the second relay circuit 112 is used to control the electromagnet in the energy storage type electric operating mechanism. The first relay circuit 111 includes a first relay 1111, a first resistor 1112, a first capacitor 1113 and a first relay circuit interface 1114. The first relay circuit interface 1114 is connected with the first relay 1111. The first relay 1111 includes a first relay function part 1115 and a first relay switch 1116. The first relay function part 1115 is connected in parallel with the first capacitor 1113 and the first resistor 1112. The second relay circuit 112 includes a second relay 1121, a second resistor 1122, a third resistor 1123, a second capacitor 1124 and a second relay circuit interface 1125. The second relay circuit interface 1125 is connected with the second relay 1121. The second relay function part 1126 is connected in parallel with the third resistor 1123 and the second capacitor 1124, and is connected in series with the second resistor 1122.

[0045] It should be noted that the "connection" described in the embodiments of the present application is an electrical connection. In one example, the connection mode is that two electrical components are connected through a wire.

[0046] Please refer to Figure 1 The control circuit 11 of the energy storage type electric operating mechanism provided by the embodiments of the present application is implemented as a distributed circuit, and includes two sub-circuits, i.e., a first relay circuit 111 and a second relay circuit 112. The first relay circuit 111 is used to control the motor in the energy storage type electric operating mechanism, and the second relay circuit 112 is used to control the electromagnet in the energy storage type electric operating mechanism. Next, the structure of the two relay circuits is described.

[0047] In the first relay circuit 111, corresponding to the case that the connected electrical appliance is the motor 1311, the relay needs to have the function that the switch thereof will not be switched to the connected state, i.e., the relay switch will not be turned on, when the duration of the external control signal is less than or equal to the duration threshold set by the worker. Therefore, based on the time delay principle of the resistor-capacitance (RC) circuit, the first capacitor 1113 is connected in parallel with the first relay functional part 1115, and the first resistor 1112 is connected in parallel with the first relay functional part 1115. In an example, the capacitance of the first capacitor 1113 is 220 μF, and the resistance value of the first resistor 1112 is 1.5 KΩ, so that the relay will not close the first relay switch 1116 when the duration of the external control signal is less than or equal to 300 ms. In the embodiments of the present application, when the first relay switch 1116 is in the first state, a loop is formed in the first relay 1111, i.e., the first relay functional part 1115 starts to work; when the first relay switch 1116 is in the second state, the loop in the first relay 1111 is broken, i.e., the first relay functional part 1115 stops working.

[0048] In the second relay circuit 112, corresponding to the case that the connected electrical appliance is the electromagnet 1321, in order to adapt to the use characteristics of the electromagnet 1321, in addition to the second capacitor 1124 connected in parallel with the second relay functional part 1126 and the second resistor 1122 connected in series with the second relay functional part 1126 based on the time delay principle of the RC circuit, a third resistor 1123 is further provided, which is used to provide a load for the second capacitor 1124 in the process of discharging the capacitor.

[0049] In an example, when the control circuit 11 exists independently, the output ends of the first relay circuit 111 and the second relay circuit 112 can be implemented as modular output ports. In another example, when the control circuit 11 exists independently, the output ends of the first relay circuit 111 and the second relay circuit 112 are combined and integrated into the same modular output port, so as to realize the independent existence of the control circuit 11.

[0050] Optionally, please refer to Figure 2The first relay circuit 111 also includes a first diode 1117 and a second diode 1118. The first diode 1117 is connected in parallel with the first relay functional unit 1115, and the second diode 1118 is connected in parallel with the first relay switch 1116.

[0051] Alternatively, please refer to Figure 3 The second relay circuit 112 also includes a third diode 1128 and a fourth diode 1129. The third diode 1128 is connected in parallel with the second relay functional unit 1126, and the fourth diode 1129 is connected in parallel with the second relay switch 1127.

[0052] Combination Figure 2 The illustrated embodiments and Figure 3 Please refer to the embodiment shown. Figure 4 The first relay circuit 111 also includes a first diode 1117 and a second diode 1118. The first diode 1117 is connected in parallel with the first relay functional unit 1115, and the second diode 1118 is connected in parallel with the first relay switch 1116. The second relay circuit 112 also includes a third diode 1128 and a fourth diode 1129. The third diode 1128 is connected in parallel with the second relay functional unit 1126, and the fourth diode 1129 is connected in parallel with the second relay switch 1127.

[0053] Figures 1 to 4 Four different implementations of the control circuit 11 for the energy storage electric operating mechanism are shown, corresponding to different power supply methods. In the control circuit 11 provided in different examples, the number and placement of diodes vary:

[0054] exist Figure 1 In this case, both the first relay circuit 111 and the second relay circuit 112 are implemented as circuits powered by alternating current, so there is no need to install diodes in the circuit.

[0055] exist Figure 2 In this circuit, the first relay circuit 111 is implemented as a circuit powered by direct current, and the second relay circuit 112 is implemented as a circuit powered by alternating current. In this case, the first diode 1117 and the second diode 1118 are set in the first relay circuit 111.

[0056] exist Figure 3 In this circuit, the first relay circuit 111 is implemented as a circuit powered by alternating current, and the second relay circuit 112 is implemented as a circuit powered by direct current. In this case, the third diode 1128 and the fourth diode 1129 are set in the second relay circuit 112.

[0057] exist Figure 4Among them, the first relay circuit 111 and the second relay circuit 112 are both realized as circuits powered by direct current, at this time, the first diode 1117 and the second diode 1118 are arranged in the first relay circuit 111, and the third diode 1128 and the fourth diode 1129 are arranged in the second relay circuit 112.

[0058] In this application, the role of the diode is to prevent the reverse electromotive force from damaging the indicating contact in the case of a direct current power supply.

[0059] In one example, the first relay circuit interface 1114 includes a first power supply interface and a first power consumer interface; the second relay circuit interface 1125 includes a second power supply interface and a second power consumer interface. The first power supply interface and the second power supply interface are adapted to 24V direct current alternating current. In this case, the control circuit 11 is realized in the form as shown in Figure 4 , that is, in the form of the first diode 1117, the second diode 1118, the third diode 1128, and the fourth diode 1129.

[0060] In summary, the control circuit of the energy storage type electric operating mechanism provided by the embodiments of the application corresponds to the actual situation that the energy storage type electric operating mechanism includes a motor and an electromagnet, and the first relay circuit for adapting the motor and the second relay circuit for adapting the electromagnet are distributedly arranged in the control circuit. During the use of the energy storage type electric operating mechanism, because the first relay and the second relay are provided with a combination of capacitors and resistors, when a small signal is received, the relay will not act, so as to prevent misoperation, eliminate the possibility of the electric operating mechanism operating in a non-control state, and increase the safety of the device.

[0061] Figure 5 A structure diagram of an energy storage type electric operating mechanism 1 provided by one example embodiment of the application is shown, please refer to Figure 5 , the energy storage type electric operating mechanism 1 includes a control circuit 11, a power supply circuit 12, and a power consumer circuit 13; the power supply circuit 12 and the power consumer circuit 13 are connected with the control circuit 11; the power supply circuit 12 includes a power switch 121, and the power switch 121 is connected with the control circuit 11; the power consumer circuit 13 includes a motor sub-circuit 131 and an electromagnet sub-circuit 132; the motor sub-circuit 131 includes a motor 1311 and a motor lead 1312, and the motor 1311 is connected with the first relay circuit 111 through the motor lead 1312; the electromagnet sub-circuit 132 includes an electromagnet 1321 and an electromagnet lead 1322, and the electromagnet 1321 is connected with the second relay circuit 112 through the electromagnet lead 1322.

[0062] In the embodiment of the present application, the power supply circuit 12 and the electric appliance circuit 13 together constitute the execution part of the energy storage type electric operating mechanism 1. The execution part can be powered by an AC power supply or a DC power supply with a voltage of 24V-360V. In the embodiment of the present application, the power supply circuit 12 is a circuit composed of a power switch 121 and wires connected thereto. The power switch 121 is connected with the control circuit 11 to realize the power supply control of the energy storage type electric operating mechanism 1.

[0063] In the embodiment of the present application, the electric appliance circuit 13 includes a motor sub-circuit 131 and an electromagnet sub-circuit 132. The motor sub-circuit 131 and the electromagnet sub-circuit 132 are respectively connected with corresponding relay circuits.

[0064] Please refer to Figure 5 In an implementation, the power switch 121 includes a first micro switch 1211, a second micro switch 1212 and a third micro switch 1213; the first micro switch 1211 is connected in series with the second micro switch 1212 and the third micro switch 1213, and the first micro switch 1211 is used to control the start and stop of the energy storage type electric operating mechanism 1; the second micro switch 1212 is used to control the function selection of the energy storage type electric operating mechanism 1; and the third micro switch 1213 is used to keep the energy storage type electric operating mechanism 1 in the power-on state when the energy storage type electric operating mechanism 1 is in the working state.

[0065] Please refer to Figure 5 The energy storage type electric operating mechanism 1 further includes a wire coil 14, and the power supply circuit 12 and the electric appliance circuit 13 are electrically connected with the wire coil 14. Through the interface setting in the wire coil 14, each circuit is connected with each other and powered on.

[0066] In summary, the energy storage type electric operating mechanism provided in the embodiment of the present application, in view of the actual situation that the energy storage type electric operating mechanism includes a motor and an electromagnet, the first relay circuit for adapting the motor and the second relay circuit for adapting the electromagnet are distributedly set in the control circuit. During the use of the energy storage type electric operating mechanism, the combination of the capacitor and the resistor is set for the first relay and the second relay, so that the relay will not act when receiving a small signal, to prevent misoperation, eliminate the possibility of the electric operating mechanism operating in a non-control condition, and increase the safety of the device.

[0067] The energy storage type electric operating mechanism provided in the embodiment of the present application further improves the use stability of the mechanism through the combination setting of the micro switch.

[0068] The above merely is the optional embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A control circuit (11) for an energy storage electric operating mechanism, characterized in that, The control circuit (11) of the energy storage electric operating mechanism includes a first relay circuit (111), a second relay circuit (112), and the first relay circuit (111) and the second relay circuit are used to connect to the electrical appliance circuit (13). The first relay circuit (111) is used to control the motor in the energy storage electric operating mechanism, and the second relay circuit (112) is used to control the electromagnet in the energy storage electric operating mechanism. The first relay circuit (111) includes a first relay (1111), a first resistor (1112), a first capacitor (1113), and a first relay circuit interface (1114). The first relay circuit interface (1114) is connected to the first relay (1111); The first relay (1111) is connected in parallel with the first capacitor (1113) and then connected in series with the first resistor (1112); The second relay circuit (112) includes a second relay (1121), a second resistor (1122), a third resistor (1123), a second capacitor (1124), and a second relay circuit interface (1125). The second relay circuit interface (1125) is connected to the second relay (1121); The second relay (1121) includes a second relay function unit (1126) and a second relay switch (1127), the second relay switch (1127) being used to control the working state of the second relay function unit (1126); The second relay function (1126) is connected in parallel with the third resistor (1123) and the second capacitor (1124), and in series with the second resistor (1122).

2. The control circuit (11) of the energy storage electric operating mechanism according to claim 1, characterized in that, The first relay circuit (111) also includes a first diode (1117) and a second diode (1118). The first diode (1117) is connected in parallel with the first relay functional unit (1115); The second diode (1118) is connected in parallel with the first relay switch (1116).

3. The control circuit (11) of the energy storage electric operating mechanism according to claim 1 or 2, characterized in that, The second relay circuit (112) also includes a third diode (1128) and a fourth diode (1129). The third diode (1128) is connected in parallel with the second relay functional unit (1126); The fourth diode (1129) is connected in parallel with the second relay switch (1127).

4. The control circuit of the energy storage electric operating mechanism according to claim 1, characterized in that, The first relay circuit interface (1114) includes a first power interface and a first electrical appliance interface; The second relay circuit interface (1125) includes a second power supply interface and a second electrical appliance interface.

5. The control circuit of the energy storage electric operating mechanism according to claim 4, characterized in that, The first power interface and the second power interface are compatible with 24V DC and AC power.

6. An energy storage electric operating mechanism, characterized in that, The energy storage electric operating mechanism (1) includes a control circuit (11), a power supply circuit (12), and an electrical appliance circuit (13) as described in any one of claims 1 to 5. The power supply circuit (12) and the electrical appliance circuit (13) are respectively connected to the control circuit (11); The power supply circuit (12) includes a power switch (121), which is connected to the control circuit (11); The electrical appliance circuit (13) includes a motor sub-circuit (131) and an electromagnet sub-circuit (132). The motor sub-circuit (131) includes a motor (1311) and a motor wire (1312), and the motor (1311) is connected to the first relay circuit (111) through the motor wire (1312); The electromagnet sub-circuit (132) includes an electromagnet (1321) and an electromagnet wire (1322), and the electromagnet (1321) is connected to the second relay circuit (112) through the electromagnet wire (1322).

7. The energy storage electric operating mechanism according to claim 6, characterized in that, The power switch (121) includes a first micro switch (1211), a second micro switch (1212), and a third micro switch (1213). The first micro switch (1211) is connected in series with the second micro switch (1212) and the third micro switch (1213), and the first micro switch (1211) is used to control the start and stop of the energy storage electric operating mechanism (1); The second micro switch (1212) is used to control the function selection of the energy storage electric operating mechanism (1); The third micro switch (1213) is used to keep the energy storage electric operating mechanism (1) energized when the energy storage electric operating mechanism (1) is in the working state.

8. The energy storage electric operating mechanism according to claim 6, characterized in that, The energy storage electric operating mechanism (1) also includes a coil (14). The power supply circuit (12) and the electrical appliance circuit (13) are electrically connected to the coil (14).

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