Power supply control circuit of magnetic lock electromagnetic actuating mechanism

Abstract

The utility model provides a power supply control circuit of a magnetic lock electromagnetic actuating mechanism, which is characterized in that a system power supply module is connected between a system power supply and a bus and is provided with a first intermediate relay and a second intermediate relay; the forward power supply module is connected between the bus and the magnetic valve interface, and is provided with a first normally open contact and a first delay action contact; the emergency power supply module is connected between an emergency power supply and a bus, and is provided with a first normally closed contact acting along with the first intermediate relay; the reverse power supply module is connected between the bus and the magnetic valve interface, and is provided with a second normally closed contact, a second delay action contact and a voltage conversion unit; the positive line of the reverse power supply module is connected with the negative line of the positive power supply module, and the negative line is connected with the positive line of the positive power supply module. Two-way input power supply is adopted to improve power supply stability, conversion of forward power supply output and reverse power supply output is achieved through a relay and an action contact, and meanwhile delay power-off is controllable to achieve an automatic power-off function.

Description

Technical Field

[0001] The present application relates to the field of electrical inspection technology, and in particular to a power supply control circuit of an electromagnetic actuator of a magnetic lock. Background Art

[0002] The electromagnetic actuator of magnetic lock is a kind of electromagnetic actuator that relies on the electromagnetic coil to connect to the DC 48V voltage to complete the dragging action, dragging the driving rod from the initial position to the target position, and relying on the permanent magnetic potential to maintain the position after reaching the target position. After disconnection, the permanent magnetic potential is used to maintain the target position. The actuator reset relies on the electromagnetic coil to connect to the DC 12V voltage in the reverse direction to form a reverse magnetic potential to offset the permanent magnetic potential. The reset spring returns the driving rod to its original position. After reset, the power is cut off and the spring force maintains the initial position.

[0003] However, due to the large variety of power sources, the forward and reverse power-on operations of the current magnetic lock electromagnetic actuators can easily cause equipment damage, which in turn affects the power supply of the magnetic lock electromagnetic actuators. The power supply stability is poor. At the same time, the forward and reverse power-on processes require a certain amount of time intervals and are achieved through staff controlling the switch operations in each independent power supply line, which is less convenient. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a power supply control circuit for a magnetic lock electromagnetic actuator, which adopts dual-input power supply to improve power supply stability, and realizes the conversion of forward and reverse power supply output through relays and action contacts, while making the delayed power-off controllable to realize the automatic power-off function.

[0005] In a first aspect, an embodiment of the present application provides a power supply control circuit for a magnetic lock electromagnetic actuator, including: a system power supply module, a forward power supply module, an emergency power supply module, and a reverse power supply module;

[0006] The system power supply module is arranged between the system power supply and the power supply bus, and a first intermediate relay and a second intermediate relay connected in parallel are arranged between the positive line and the negative line;

[0007] The forward power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and a first make contact and a first delayed action contact are arranged on the positive line and the negative line;

[0008] The emergency power supply module is arranged between the emergency power supply and the power supply bus, and the positive line and the negative line are both provided with a first break contact following the action of the first intermediate relay;

[0009] The reverse power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and a second break contact and a second delayed action contact are arranged on both the positive line and the negative line, and a voltage conversion unit is arranged between the second break contact and the second delayed action contact;

[0010] The positive line of the reverse power supply module is connected to the negative line of the forward power supply module, and the negative line of the reverse power supply module is connected to the positive line of the forward power supply module.

[0011] In combination with the first aspect, the embodiment of the present application provides a first possible implementation of the first aspect, wherein the power supply control circuit further includes: a forward power supply control loop;

[0012] The forward power supply control circuit is arranged between the positive power supply bus and the negative power supply bus;

[0013] A first time relay is provided in the forward power supply control circuit, and a second make contact is provided between the first time relay and the positive power supply bus and the negative power supply bus;

[0014] The first delayed action contact delays action following the release of the first time relay.

[0015] In combination with the first aspect, the embodiment of the present application provides a second possible implementation of the first aspect, wherein the power supply control circuit further includes: a reverse power supply control loop;

[0016] The reverse power supply control circuit is arranged between the positive power supply bus and the negative power supply bus;

[0017] A second time relay is provided in the reverse power supply control circuit, and a third break contact is provided between the second time relay and the positive power supply bus and the negative power supply bus;

[0018] The second delayed action contact delays action following the release of the second time relay.

[0019] In combination with the first aspect, the embodiment of the present application provides a third possible implementation of the first aspect, wherein the power supply control circuit further includes: a remote control module;

[0020] The remote control module includes a first remote control loop;

[0021] The first remote control circuit is arranged between the positive power supply bus and the negative power supply bus;

[0022] The first remote control circuit is provided with a third intermediate relay and a fourth intermediate relay connected in parallel;

[0023] A fourth break contact is provided between the third intermediate relay and the positive power supply bus, and a first remote control button is provided between the fourth break contact and the third intermediate relay.

[0024] In combination with the first aspect, the embodiment of the present application provides a fourth possible implementation of the first aspect, wherein the remote control module further includes a second remote control loop;

[0025] The second remote control circuit is arranged between the positive power supply bus and the negative power supply bus;

[0026] The second remote control circuit and the first remote control circuit share the third intermediate relay and the fourth intermediate relay;

[0027] A third make contact is provided between the third intermediate relay and the positive power supply bus, and a second remote control button is provided between the third make contact and the third intermediate relay.

[0028] In combination with the first aspect, the embodiment of the present application provides a fifth possible implementation of the first aspect, wherein the first make contact, the second break contact, and the third break contact follow the action of the third intermediate relay;

[0029] The second make contact follows the action of the fourth intermediate relay.

[0030] In combination with the first aspect, the embodiment of the present application provides a sixth possible implementation of the first aspect, wherein the fourth break contact follows the action of the second intermediate relay.

[0031] In combination with the first aspect, the embodiment of the present application provides a seventh possible implementation of the first aspect, wherein the third make contact follows the action of the second intermediate relay.

[0032] In combination with the first aspect, an embodiment of the present application provides an eighth possible implementation of the first aspect, wherein the power supply control circuit is provided with a combination of multiple forward power supply modules and reverse power supply modules, and the forward power supply control loop corresponding to each forward power supply module, and the reverse power supply control loop corresponding to each reverse power supply module;

[0033] For each combination of the forward power supply module and the reverse power supply module, the power supply control circuit is further provided with the remote control module corresponding to the combination.

[0034] In combination with the first aspect, the embodiment of the present application provides a ninth possible implementation of the first aspect, wherein the system power module further includes an air switch, a filter, a system power indicator light, and a first diode;

[0035] The filter is arranged between the first intermediate relay and the system power supply, and the air switch is arranged on the positive line and the negative line between the filter and the system power supply;

[0036] The system power supply indicator light is connected between the positive line and the negative line, and is arranged between the second intermediate relay and the power supply bus;

[0037] The first diode is connected to the positive line and is arranged between the system power supply indicator light and the power supply bus;

[0038] The emergency power supply module also includes an emergency power supply indicator light and a second diode;

[0039] The emergency power supply indicator light is connected between the positive line and the negative line, and is arranged between the first break contact and the power supply bus;

[0040] The second diode is connected to the positive line and is arranged between the emergency power supply indicator light and the power supply bus.

[0041] The embodiment of the present application provides a power supply control circuit of a magnetic lock electromagnetic actuator, comprising: a system power supply module, a forward power supply module, an emergency power supply module and a reverse power supply module; the system power supply module is arranged between the system power supply and the power supply bus, and a first intermediate relay and a second intermediate relay connected in parallel are arranged between the positive line and the negative line; the forward power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and a first moving contact and a first delayed action contact are arranged on the positive line and the negative line; the emergency power supply module is arranged on the emergency Between the power supply and the power supply bus, the positive line and the negative line are both provided with a first break contact that follows the action of the first intermediate relay; the reverse power supply module is provided between the power supply bus and the solenoid valve power supply interface, and the positive line and the negative line are both provided with a second break contact and a second delayed action contact, and a voltage conversion unit is provided between the second break contact and the second delayed action contact; the positive line of the reverse power supply module is connected to the negative line of the forward power supply module, and the negative line of the reverse power supply module is connected to the positive line of the forward power supply module. By adopting dual-path input power supply, the power supply stability is improved, and the conversion of forward and reverse power supply outputs is realized through relays and action contacts, while the delayed power-off is controllable to realize the automatic power-off function. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of the structure of a power supply control circuit of a magnetic lock electromagnetic actuator provided in an embodiment of the utility model;

[0044] Figure 2 A schematic diagram of the structure of another power supply control circuit of a magnetic lock electromagnetic actuator provided in an embodiment of the utility model;

[0045] Figure 3 A schematic diagram of the structure of another power supply control circuit of a magnetic lock electromagnetic actuator provided in an embodiment of the utility model;

[0046] Figure 4 A schematic structural diagram of a power supply control circuit of another magnetic lock electromagnetic actuator provided in an embodiment of the utility model.

[0047] Icons: 100-power supply control circuit of magnetic lock electromagnetic actuator; 110-system power supply module; 111-first intermediate relay; 112-second intermediate relay; 113-air switch; 114-filter; 115-system power supply indicator; 116-first diode; 120-forward power supply module; 121-first make contact; 122-first delayed action contact; 130-emergency power supply module; 131-first break contact; 132-emergency power supply indicator; 133-second diode; 140-reverse power supply module; 141-second break contact; 142-second Delayed action contact; 143-voltage conversion unit; 150-forward power supply control circuit; 151-first time relay; 152-second make contact; 160-reverse power supply control circuit; 161-second time relay; 162-third break contact; 170-remote control module; 171-first remote control circuit; 1711-third intermediate relay; 1712-fourth intermediate relay; 1713-first remote control button; 1714-fourth break contact; 172-second remote control circuit; 1721-third make contact; 1722-second remote control button. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] In the description of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0052] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Considering that the existing magnetic lock electromagnetic actuator has many types of power supplies, the forward and reverse power-on operations are prone to cause equipment damage, which in turn affects the power supply of the magnetic lock electromagnetic actuator, and the power supply stability is poor. At the same time, the forward and reverse power-on processes require a certain time interval and are achieved through independent switch operations controlled by staff, which is less convenient.

[0055] The embodiment of the present application provides a power supply control circuit of a magnetic lock electromagnetic actuator, including: a system power supply module, a forward power supply module, an emergency power supply module and a reverse power supply module; the system power supply module is arranged between the system power supply and the power supply bus, and a first intermediate relay and a second intermediate relay connected in parallel are arranged between the positive line and the negative line; the forward power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and a first moving contact and a first delayed action contact are arranged on the positive line and the negative line; the emergency power supply module is arranged on the emergency Between the power supply and the power supply bus, the positive line and the negative line are both provided with a first break contact that follows the action of the first intermediate relay; the reverse power supply module is provided between the power supply bus and the solenoid valve power supply interface, and the positive line and the negative line are both provided with a second break contact and a second delayed action contact, and a voltage conversion unit is provided between the second break contact and the second delayed action contact; the positive line of the reverse power supply module is connected to the negative line of the forward power supply module, and the negative line of the reverse power supply module is connected to the positive line of the forward power supply module. By adopting dual-path input power supply, the power supply stability is improved, and the conversion of forward and reverse power supply outputs is realized through relays and action contacts, while the delayed power-off is controllable to realize the automatic power-off function.

[0056] See also Figure 1 , Figure 1 A schematic structural diagram of a power supply control circuit 100 of a magnetic lock electromagnetic actuator provided in this embodiment.

[0057] like Figure 1 As shown in , the power supply control circuit 100 of the magnetic lock electromagnetic actuator provided in this embodiment includes: a system power supply module 110, a forward power supply module 120, an emergency power supply module 130 and a reverse power supply module 140.

[0058] Specifically, the system power supply module 110 includes a first intermediate relay 111 and a second intermediate relay 112; the forward power supply module 120 includes a first make contact 121 and a first delayed action contact 122; the emergency power supply module 130 includes a first break contact 131; the reverse power supply module 140 includes a second break contact 141, a second delayed action contact 142 and a voltage conversion unit 143.

[0059] Here, the system power module 110 adopts an electrical structure in which the positive line and the negative line are used for power supply, and is arranged between the system power supply and the power supply bus, and is used to transmit the power supply of the system power supply to the power supply bus. In the system power module 110, the first intermediate relay 111 and the second intermediate relay 112 are connected in parallel, the first intermediate relay 111 is connected between the positive line and the negative line of the system power module 110, and the second intermediate relay 112 is connected between the positive line and the negative line of the system power module 110.

[0060] Among them, the system power supply is the main power supply for the electromagnetic actuator of the magnetic lock, which is used to supply power under normal working conditions. A socket is provided at one end of the system power supply module 110 connected to the system power supply, and is connected to the system power supply in the form of a connector through the plug of the system power supply. One end of the positive line of the system power supply module 110 is connected to the positive power supply bus in the power supply bus, and the other end is connected to the positive output terminal of the system power supply; one end of the negative line is connected to the negative power supply bus in the power supply bus, and the other end is connected to the negative output terminal of the system power supply.

[0061] Here, the forward power supply module 120 adopts an electrical structure in which the positive line and the negative line are used for power supply, and is arranged between the power supply bus and the solenoid valve power supply interface, and is used to supply positive power to the solenoid valve power supply interface through the power supply bus. In the forward power supply module 120, a first normally closed contact 121 and a first delayed action contact 122 are arranged on the positive line and the negative line. In the positive line and the negative line, the first normally closed contact 121 and the first delayed action contact 122 are connected in series, the first normally closed contact 121 is connected between the first delayed action contact 122 and the power supply bus, and the first delayed action contact 122 is connected between the first normally closed contact 121 and the solenoid valve power supply interface.

[0062] Among them, a socket is provided at one end of the forward power supply module 120 connected to the solenoid valve power supply interface, and is connected to the solenoid valve power supply interface in the form of a connector through the plug of the solenoid valve power supply interface. One end of the positive line of the forward power supply module 120 is connected to the positive power supply bus in the power supply bus, and the other end is connected to the positive input end of the solenoid valve power supply interface; one end of the negative line is connected to the negative power supply bus in the power supply bus, and the other end is connected to the reverse input end of the solenoid valve power supply interface.

[0063] Furthermore, the emergency power supply module 130 adopts an electrical structure in which the positive line and the negative line are used for power supply, and is arranged between the emergency power supply and the power supply bus, and is used to transmit the power supply of the emergency power supply to the power supply bus. In the emergency power supply module 130, a first break contact 131 is arranged on both the positive line and the negative line.

[0064] Among them, the emergency power supply is the auxiliary power supply of the magnetic lock electromagnetic actuator, which is used for emergency power supply in the event of a power outage in the system power supply. A socket is provided at one end of the emergency power supply module 130 that is connected to the system emergency, and is connected to the emergency power supply through the plug of the emergency power supply in the form of a connector. One end of the positive line of the emergency power supply module 130 is connected to the positive power supply bus in the power supply bus, and the other end is connected to the positive output end of the emergency power supply; one end of the negative line is connected to the negative power supply bus in the power supply bus, and the other end is connected to the negative output end of the emergency power supply.

[0065] It should be noted that the first break contact 131 follows the action of the first intermediate relay 111 in the forward power supply module 120 .

[0066] Here, the reverse power supply module 140 adopts an electrical structure of power supply by positive and negative lines, and is arranged between the power supply bus and the solenoid valve power supply interface. It is used to convert the voltage of the power supply bus and reversely supply power to the solenoid valve power supply interface. In the reverse power supply module 140, a second break contact 141 and a second delayed action contact 142 are arranged on the positive line and the negative line. At the same time, a voltage conversion unit 143 is arranged between the second break contact 141 and the second delayed action contact 142.

[0067] Among them, for the positive line, along the direction from the power supply bus to the solenoid valve power supply interface, the second break contact 141, the positive input terminal of the voltage conversion unit 143, the positive output terminal of the voltage conversion unit 143 and the second delayed action contact 142 are connected in series in sequence; for the negative line, along the direction from the power supply bus to the solenoid valve power supply interface, the second break contact 141, the negative input terminal of the voltage conversion unit 143, the negative output terminal of the voltage conversion unit 143 and the second delayed action contact 142 are connected in series in sequence.

[0068] It should be noted that the positive line of the reverse power supply module 140 is connected to the negative line of the forward power supply module 120 , and the negative line of the reverse power supply module 140 is connected to the positive line of the forward power supply module 120 .

[0069] Optionally, the voltage conversion unit 143 may be a voltage converter that converts 48V DC power into 12V DC power.

[0070] Optionally, the solenoid valve power supply interface may be a protection valve power supply interface or an isolation valve power supply interface, etc., which may be selected according to actual needs and is not specifically limited here.

[0071] Preferably, in order to meet the power supply requirements of multiple solenoid valve power supply interfaces, a combination of multiple system power supply modules 110, forward power supply modules 120, emergency power supply modules 130 and reverse power supply modules 140 may be provided in the power supply control circuit 100 of the magnetic lock electromagnetic actuator. Each combination of system power supply module 110, forward power supply module 120, emergency power supply module 130 and reverse power supply module 140 is responsible for the power supply task of one solenoid valve power supply interface.

[0072] See also Figure 2 , Figure 2 A schematic structural diagram of another power supply control circuit 100 of a magnetic lock electromagnetic actuator provided in this embodiment.

[0073] exist Figure 1 On the basis of Figure 2 As shown in , the power supply control circuit 100 of the magnetic lock electromagnetic actuator provided in this embodiment further includes: a forward power supply control circuit 150 and a reverse power supply control circuit 160.

[0074] Specifically, the forward power supply control circuit 150 includes a first time relay 151 and a second make contact 152 ; the reverse power supply control circuit 160 includes a second time relay 161 and a third break contact 162 .

[0075] Here, the forward power supply control circuit 150 is arranged between the positive power supply bus and the negative power supply bus, and a second make contact 152 is arranged between the first time relay 151 and the positive power supply bus and between the first time relay 151 and the negative power supply bus.

[0076] Furthermore, the reverse power supply control circuit 160 is arranged between the positive power supply bus and the negative power supply bus, and a third break contact 162 is arranged between the second time relay 161 and the positive power supply bus and between the second time relay 161 and the negative power supply bus.

[0077] The first delayed action contact 122 in the forward power supply module 120 delays action following the release of the first time relay 151 , and the second delayed action contact 142 in the reverse power supply module 140 delays action following the release of the second time relay 161 .

[0078] See also Figure 3 , Figure 3 A schematic structural diagram of another power supply control circuit 100 of a magnetic lock electromagnetic actuator provided in this embodiment.

[0079] exist Figure 2 On the basis of Figure 3As shown in , the power supply control circuit 100 of the magnetic lock electromagnetic actuator provided in this embodiment further includes: a remote control module 170 ; the remote control module 170 includes a first remote control circuit 171 and a second remote control circuit 172 .

[0080] Specifically, the first remote control circuit 171 includes a third intermediate relay 1711, a fourth intermediate relay 1712, a first remote control button 1713, and a fourth break contact 1714; the second remote control circuit 172 includes a third make contact 1721 and a second remote control button 1722, and shares the third intermediate relay 1711 and the fourth intermediate relay 1712 with the first remote control circuit 171.

[0081] Here, the first remote control circuit 171 is arranged between the positive power supply bus and the negative power supply bus, the third intermediate relay 1711 and the fourth intermediate relay 1712 are connected in parallel, and a fourth break contact 1714 is arranged between the third intermediate relay 1711 and the fourth intermediate relay 1712 connected in parallel and the positive power supply bus, and a first remote control button 1713 is arranged between the fourth break contact 1714 and the third intermediate relay 1711 and the fourth intermediate relay 1712 connected in parallel.

[0082] Furthermore, a second remote control circuit 172 is arranged between the positive power supply bus and the negative power supply bus, a third make contact 1721 is arranged between the third intermediate relay 1711 and the fourth intermediate relay 1712 connected in parallel and the positive power supply bus, and a second remote control button 1722 is arranged between the third make contact 1721 and the third intermediate relay 1711 and the fourth intermediate relay 1712 connected in parallel.

[0083] Here, the first make contact 121, the second break contact 141 and the third break contact 162 follow the action of the third intermediate relay 1711; the second make contact 152 follows the action of the fourth intermediate relay 1712; the fourth break contact 1714 follows the action of the second intermediate relay 112; and the third make contact 1721 follows the action of the second intermediate relay.

[0084] Preferably, in order to adapt to the power supply requirements of multiple solenoid valve power supply interfaces, the power supply control circuit 100 of the magnetic lock electromagnetic actuator can be provided with a combination of multiple forward power supply modules 120 and reverse power supply modules 140, as well as a forward power supply control circuit 150 corresponding to each forward power supply module 120, and a reverse power supply control circuit 160 corresponding to each reverse power supply module 140; for each combination of the forward power supply module 120 and the reverse power supply module 140, a remote control module 170 corresponding to the combination can also be provided in the power supply control circuit 100 of the magnetic lock electromagnetic actuator.

[0085] See also Figure 4 , Figure 4 A schematic structural diagram of another power supply control circuit 100 of a magnetic lock electromagnetic actuator provided in this embodiment.

[0086] exist Figure 3 On the basis of Figure 4 As shown in the figure, in the power supply control circuit 100 of the magnetic lock electromagnetic actuator provided in this embodiment, the system power supply module 110 also includes an air switch 113, a filter 114, a system power supply indicator light 115 and a first diode 116; the emergency power supply module 130 also includes an emergency power supply indicator light 132 and a second diode 133.

[0087] Specifically, the filter 114 is arranged between the first intermediate relay 111 and the system power supply, and the air switch 113 is arranged on the positive line and the negative line between the filter 114 and the system power supply; the system power supply indicator light 115 is connected between the positive line and the negative line of the system power supply module 110, and is arranged between the second intermediate relay 112 and the power supply bus; the first diode 116 is connected to the positive line of the system power supply module 110, and is arranged between the system power supply indicator light 115 and the power supply bus.

[0088] Furthermore, the emergency power supply indicator light 132 is connected between the positive line and the negative line of the emergency power supply module 130, and is arranged between the first breaking contact 131 and the power supply bus; the second diode 133 is connected to the positive line of the emergency power supply module 130, and is arranged between the emergency power supply indicator light 132 and the power supply bus.

[0089] In a specific implementation, after the air switch 113 is closed, the power supply control circuit 100 of the magnetic lock electromagnetic actuator enters the in-service state and is powered by the system power supply. After the system power supply is connected, the filter 114, the first intermediate relay 111 and the second intermediate relay 112 are energized and operated, and the filter 114 filters and purifies the system power supply. After the first intermediate relay 111 and the second intermediate relay 112 are energized and operated, the first breaking contact 131 in the emergency power supply module 130 follows the action of the first intermediate relay 111 to disconnect, cutting off the emergency power supply, and the system power supply indicator light 115 lights up to remind the staff that it is currently powered by the system power supply.

[0090] Here, following the power-on action of the second intermediate relay 112, the fourth break contact 1714 is disconnected, the first remote control button 1713 becomes invalid, the third make contact 1721 is closed, and the second remote control button 1722 becomes effective. At this time, if the second remote control button 1722 is pressed, the third intermediate relay 1711 and the fourth intermediate relay 1712 are powered on.

[0091] Among them, following the power-on action of the third intermediate relay 1711, the first make contact 121 is closed, and the forward power supply module 120 enters the power supply preparation state; at the same time, the second break contact 141 and the third break contact 162 are disconnected, cutting off the reverse power supply of the reverse power supply module 140 and the control function of the reverse power supply control circuit 160.

[0092] Among them, following the power-on action of the fourth intermediate relay 1712, the second normally closed contact 152 in the forward power supply control circuit 150 is closed, and the first time relay 151 is powered on, and then following the power-on action of the first time relay 151, the first delayed action contact 122 in the forward power supply module 120 is closed. At this point, the forward power supply module 120 enters the forward power supply state and provides forward power to the solenoid valve power supply interface.

[0093] In parallel, if the second remote control button 1722 remains in the pop-up state, the third intermediate relay 1711 and the fourth intermediate relay 1712 are not energized, the first normally closed contact 121 remains in the open state, and the second normally closed contact 152 in the forward power supply control circuit 150 remains in the open state, cutting off the forward power supply of the forward power supply module 120 and the control function of the forward power supply control circuit 150; at the same time, the second normally closed contact 141 and the third normally closed contact 162 remain in the closed state, the second time relay 161 is energized, and then following the energization of the second time relay 161, the second delayed action contact 142 in the reverse power supply module 140 is closed, and the reverse power supply module 140 enters the reverse power supply state and reversely supplies power to the solenoid valve power supply interface.

[0094] Furthermore, if the system power supply fails and cannot supply power, the first intermediate relay 111 and the second intermediate relay 112 are not energized, the first break contact 131 in the emergency power supply module 130 remains in a closed state, and the emergency power supply indicator light 132 lights up to remind the staff that the emergency power supply is currently supplying power.

[0095] Here, since the second intermediate relay 112 is not energized, the third make contact 1721 remains in an open state, the second remote control button 1722 is invalid, the fourth break contact 1714 remains in a closed state, and the first remote control button 1713 is effective. At this time, the first remote control button 1713 completely replaces the second remote control button 1722 in switching the forward and reverse functions.

[0096] Among them, if the first remote control button 1713 is pressed at this time, the third intermediate relay 1711 and the fourth intermediate relay 1712 are energized, following the energization of the third intermediate relay 1711, the first make contact 121 is closed, and the forward power supply module 120 enters the power supply ready state; at the same time, the second break contact 141 and the third break contact 162 are disconnected, cutting off the reverse power supply of the reverse power supply module 140 and the control function of the reverse power supply control circuit 160.

[0097] Among them, following the power-on action of the fourth intermediate relay 1712, the second normally closed contact 152 in the forward power supply control circuit 150 is closed, and the first time relay 151 is powered on, and then following the power-on action of the first time relay 151, the first delayed action contact 122 in the forward power supply module 120 is closed. At this point, the forward power supply module 120 enters the forward power supply state and provides forward power to the solenoid valve power supply interface.

[0098] In parallel, if the first remote control button 1713 remains in the pop-up state, the third intermediate relay 1711 and the fourth intermediate relay 1712 are not energized, the first make contact 121 remains in the open state, and the second make contact 152 in the forward power supply control circuit 150 remains in the open state, cutting off the forward power supply of the forward power supply module 120 and the control function of the forward power supply control circuit 150; at the same time, the second break contact 141 and the third break contact 162 remain in the closed state, the second time relay 161 is energized, and then following the energization of the second time relay 161, the second delayed action contact 142 in the reverse power supply module 140 is closed, and the reverse power supply module 140 enters the reverse power supply state and reversely supplies power to the solenoid valve power supply interface.

[0099] In this way, by controlling the pressing or pop-up state of the first remote control button 1713 or the second remote control button 1722, the switching of the forward and reverse power supply of the solenoid valve can be completed, which is highly convenient. At the same time, by setting the first time relay 151 and the second time relay 161, the delayed action of the first delayed action contact 122 in the forward power supply module 120 and the second delayed action contact 142 in the reverse power supply module 140 are realized, thereby controlling the delayed power-off time and realizing automatic power-off.

[0100] The embodiment of the present application provides a power supply control circuit of a magnetic lock electromagnetic actuator, including: a system power supply module, a forward power supply module, an emergency power supply module and a reverse power supply module; the system power supply module is arranged between the system power supply and the power supply bus, and a first intermediate relay and a second intermediate relay connected in parallel are arranged between the positive line and the negative line; the forward power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and a first moving contact and a first delayed action contact are arranged on the positive line and the negative line; the emergency power supply module is arranged on the emergency Between the power supply and the power supply bus, the positive line and the negative line are both provided with a first break contact that follows the action of the first intermediate relay; the reverse power supply module is provided between the power supply bus and the solenoid valve power supply interface, and the positive line and the negative line are both provided with a second break contact and a second delayed action contact, and a voltage conversion unit is provided between the second break contact and the second delayed action contact; the positive line of the reverse power supply module is connected to the negative line of the forward power supply module, and the negative line of the reverse power supply module is connected to the positive line of the forward power supply module. By adopting dual-path input power supply, the power supply stability is improved, and the conversion of forward and reverse power supply outputs is realized through relays and action contacts, while the delayed power-off is controllable to realize the automatic power-off function.

[0101] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A power supply control circuit for a magnetic lock electromagnetic actuator, characterized in that: include: System power supply module, forward power supply module, emergency power supply module and reverse power supply module; The system power supply module is arranged between the system power supply and the power supply bus, and a first intermediate relay and a second intermediate relay connected in parallel are arranged between the corresponding positive line and the negative line; The forward power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and the corresponding positive line and negative line are both provided with a first move-to-make contact and a first delayed action contact; The emergency power supply module is arranged between the emergency power supply and the power supply bus, and the corresponding positive line and negative line are both provided with a first break contact following the action of the first intermediate relay; The reverse power supply module is arranged between the power supply bus and the solenoid valve power supply interface, and the corresponding positive line and negative line are both provided with a second break contact and a second delayed action contact, and a voltage conversion unit is arranged between the second break contact and the second delayed action contact; The positive line of the reverse power supply module is connected to the negative line of the forward power supply module, and the negative line of the reverse power supply module is connected to the positive line of the forward power supply module.

2. The power supply control circuit according to claim 1, characterized in that: The power supply control circuit further includes: a forward power supply control loop; The forward power supply control circuit is arranged between the positive power supply bus and the negative power supply bus; A first time relay is provided in the forward power supply control circuit, and a second make contact is provided between the first time relay and the positive power supply bus and the negative power supply bus; The first delayed action contact delays action following the release of the first time relay.

3. The power supply control circuit according to claim 2, characterized in that: The power supply control circuit further includes: a reverse power supply control loop; The reverse power supply control circuit is arranged between the positive power supply bus and the negative power supply bus; A second time relay is provided in the reverse power supply control circuit, and a third break contact is provided between the second time relay and the positive power supply bus and the negative power supply bus; The second delayed action contact delays action following the release of the second time relay.

4. The power supply control circuit according to claim 3, characterized in that: The power supply control circuit further includes: a remote control module; The remote control module includes a first remote control loop; The first remote control circuit is arranged between the positive power supply bus and the negative power supply bus; The first remote control circuit is provided with a third intermediate relay and a fourth intermediate relay connected in parallel; A fourth break contact is provided between the third intermediate relay and the positive power supply bus, and a first remote control button is provided between the fourth break contact and the third intermediate relay.

5. The power supply control circuit according to claim 4, characterized in that: The remote control module also includes a second remote control loop; The second remote control circuit is arranged between the positive power supply bus and the negative power supply bus; The second remote control circuit and the first remote control circuit share the third intermediate relay and the fourth intermediate relay; A third make contact is provided between the third intermediate relay and the positive power supply bus, and a second remote control button is provided between the third make contact and the third intermediate relay.

6. The power supply control circuit according to claim 5, characterized in that: The first make contact, the second break contact and the third break contact follow the action of the third intermediate relay; The second make contact follows the action of the fourth intermediate relay.

7. The power supply control circuit according to claim 4, characterized in that: The fourth break contact follows the action of the second intermediate relay.

8. The power supply control circuit according to claim 5, characterized in that: The third make contact follows the action of the second intermediate relay.

9. The power supply control circuit according to claim 4, characterized in that: The power supply control circuit is provided with a combination of a plurality of the forward power supply modules and the reverse power supply modules, as well as a forward power supply control loop corresponding to each forward power supply module and a reverse power supply control loop corresponding to each reverse power supply module; For each combination of the forward power supply module and the reverse power supply module, the power supply control circuit is further provided with the remote control module corresponding to the combination.

10. The power supply control circuit according to claim 1, characterized in that: The system power supply module also includes an air switch, a filter, a system power supply indicator light and a first diode; The filter is arranged between the first intermediate relay and the system power supply, and the air switch is arranged on the positive line and the negative line between the filter and the system power supply; The system power supply indicator light is connected between the positive line and the negative line, and is arranged between the second intermediate relay and the power supply bus; The first diode is connected to the positive line and is arranged between the system power supply indicator light and the power supply bus; The emergency power supply module also includes an emergency power supply indicator light and a second diode; The emergency power supply indicator light is connected between the positive line and the negative line, and is arranged between the first break contact and the power supply bus; The second diode is connected to the positive line and is arranged between the emergency power supply indicator light and the power supply bus.

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