CN213125995U - Drive control apparatus for a plurality of electromechanical interlocks - Google Patents
Drive control apparatus for a plurality of electromechanical interlocks Download PDFInfo
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- CN213125995U CN213125995U CN202022559270.XU CN202022559270U CN213125995U CN 213125995 U CN213125995 U CN 213125995U CN 202022559270 U CN202022559270 U CN 202022559270U CN 213125995 U CN213125995 U CN 213125995U
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Abstract
The present application provides a drive control apparatus of a plurality of electromechanical interlocks, the drive control apparatus comprising a controller and a plurality of drive circuits in one-to-one correspondence with each of the plurality of electromechanical interlocks, each drive circuit comprising: the first end of the sampling module is connected to the third end of the switch module, the second end of the sampling module is connected to the negative electrode of the direct-current power supply, a first detection node is led out from the first end of the sampling module and the third end of the switch module, and the first detection node is connected to the first input end of the controller. According to the drive control apparatus, it is possible to simultaneously control a plurality of electromechanical interlocks to be safely opened regardless of the magnitude of the drive current.
Description
Technical Field
The application relates to the field of electromechanical interlocking device control, in particular to a driving control device for a plurality of electromechanical interlocking devices.
Background
The electromechanical interlocking device is an interlocking device which is largely used in a complete set of switch equipment system of an electric appliance, and the basic principle is that a charged coil generates a magnetic field to attract a part and drives other mechanical structures to realize locking. The intelligent monitoring system has the advantages of monitoring signal feedback output, external damage prevention, no noise, fire protection and anti-theft characteristics and the like, and is widely applied.
Before the application is proposed, the existing driving control mode of a plurality of electromechanical interlocking devices is a circuit for driving a plurality of electromechanical interlocking devices by adopting a Darlington tube driver, but the circuit cannot drive a plurality of electromechanical interlocking devices simultaneously. For example, when the darlington transistor is of the ULN2803 model, the driving current for driving each electromechanical interlock device needs about 400 milliamperes, and since the total pull-in current upper limit of the darlington driver of the ULN2803 model is 500 milliamperes, although the darlington driver of the ULN2803 model has a plurality of electromechanical interlock devices connected thereto, the darlington driver of the ULN2803 model can only drive one electromechanical interlock device at a time and cannot drive all the electromechanical interlock devices at the same time, which leads to the reduction of the efficiency of driving the electromechanical interlock device when the traffic is saturated. If a darlington driver, model ULN2803, were to force multiple electromechanical interlocks to be driven simultaneously, it would be highly likely that the circuit would burn out.
In addition, when the darlington tube driver is adopted to drive the plurality of electromechanical interlocking devices, based on the limitation of the circuit (for example, the driving lines of the plurality of electromechanical interlocking devices are packaged in one chip when the darlington tube driver is adopted to drive the plurality of electromechanical interlocking devices), the working state of the electromechanical interlocking devices cannot be known in time, and hidden dangers are hidden for the use safety of the electromechanical interlocking devices.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a driving control apparatus for multiple electromechanical interlocks, which can simultaneously control the multiple electromechanical interlocks to be safely opened without considering the magnitude of driving current, and can timely lock a failed electromechanical interlock when the working current of the electromechanical interlock is abnormal, so as to avoid repeatedly opening the failed electromechanical interlock, thereby protecting the circuit and reducing the loss.
In a first aspect, an embodiment of the present application provides a drive control apparatus for a plurality of electromechanical interlocks, the drive control apparatus including a controller and a plurality of drive circuits in one-to-one correspondence with each of the plurality of electromechanical interlocks, each of the electromechanical interlocks being connected to a positive pole of a corresponding dc power source, each of the drive circuits including:
a switch module having a first end connected to an output of the controller and a second end connected to a corresponding electromechanical interlock to drive the electromechanical interlock based on a control signal from the controller,
the first end of the sampling module is connected to the third end of the switch module, the second end of the sampling module is connected to the negative electrode of the direct-current power supply, a first detection node is led out from the position between the first end of the sampling module and the third end of the switch module and connected to the first input end of the controller, and the controller determines the working state of the electromechanical interlocking device based on the sampling voltage at the first detection node.
In one possible embodiment, each driving circuit further comprises a voltage dividing module,
the first end of the voltage division module is connected to the electromechanical interlocking device, the second end of the voltage division module is connected to the negative electrode of the direct-current power supply, a second detection node is led out of the voltage division module, the second detection node is connected to the second input end of the controller, and the controller determines the connection state of the electromechanical interlocking device based on the divided voltage at the second detection node.
In one possible embodiment, the switching module comprises a first resistor and a switching device,
one end of the first resistor serves as a first end of the switch module and is connected to an output end of the controller, the other end of the first resistor is connected to a first end of the switch device, a second end of the switch device serves as a second end of the switch module and is connected to a first end of the electromechanical interlocking device, a second end of the electromechanical interlocking device is connected to a positive electrode of the direct current power supply, and a third end of the switch device serves as a third end of the switch module and is connected to a first end of the sampling module.
In one possible embodiment, the sampling module comprises a second resistor,
one end of the second resistor is used as the first end of the sampling module and connected to the third end of the switch module, and the other end of the second resistor is used as the second end of the sampling module and connected to the negative electrode of the direct current power supply.
In one possible implementation, the voltage dividing module comprises a third resistor and a fourth resistor,
wherein one end of the third resistor is connected to the first end of the electromechanical interlocking device as the first end of the voltage division module, the second end of the electromagnetic lock is connected to the positive electrode of the direct current power supply, the other end of the third resistor is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the negative electrode of the direct current power supply as the second end of the voltage division module,
wherein the second detection node is drawn from between the other end of the third resistor and the one end of the fourth resistor.
In one possible embodiment, each driver circuit further comprises a protection module,
wherein a first end of the protection module is connected to a first end of the electromechanical interlock device, a second end of the protection module is connected to a second end of the electromechanical interlock device, the first end of the electromechanical interlock device is also connected to a second end of the switch module, and the second end of the electromechanical interlock device is connected to a positive pole of a direct current power source.
In one possible embodiment, the protection module comprises a diode,
wherein an anode of the diode is connected as a first end of the protection module to a first end of the electromechanical interlock device and a cathode of the diode is connected as a second end of the protection module to a second end of the electromechanical interlock device.
In one possible embodiment, the switching device comprises any one of the following: triode, field effect transistor and relay.
The drive control equipment of a plurality of electromechanical interlocking devices that this application embodiment provided can control a plurality of electromechanical interlocking devices simultaneously and open safely and need not to consider drive current's size to can in time lock the electromechanical interlocking device of trouble when electromechanical interlocking device's operating current is unusual, avoided opening the electromechanical interlocking device of trouble repeatedly, thereby protection circuit reduces the loss.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram illustrating a plurality of electromechanical interlocking devices according to an embodiment of the present disclosure;
fig. 2 shows a schematic structural diagram of a driving circuit provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a driving circuit according to another embodiment of the present application;
fig. 4 shows a schematic structural diagram of a driving circuit according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. Every other embodiment that can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present application falls within the protection scope of the present application.
Before the application is proposed, the existing driving control mode of a plurality of electromechanical interlocking devices is a circuit for driving a plurality of electromechanical interlocking devices by adopting a Darlington tube driver, but the circuit cannot drive a plurality of electromechanical interlocking devices simultaneously. For example, when the darlington transistor is of the ULN2803 model, the driving current for driving each electromechanical interlock device needs about 400 milliamperes, and since the total pull-in current upper limit of the darlington driver of the ULN2803 model is 500 milliamperes, although the darlington driver of the ULN2803 model has a plurality of electromechanical interlock devices connected thereto, the darlington driver of the ULN2803 model can only drive one electromechanical interlock device at a time and cannot drive all the electromechanical interlock devices at the same time, which leads to the reduction of the efficiency of driving the electromechanical interlock device when the traffic is saturated. If a darlington driver, model ULN2803, were to force multiple electromechanical interlocks to be driven simultaneously, it would be highly likely that the circuit would burn out.
In addition, when the Darlington tube driver is adopted to drive the plurality of electromechanical interlocking devices, based on the limitation of the circuit (the Darlington tube driver is adopted to drive the plurality of electromechanical interlocking devices, a plurality of electromechanical interlocking driving circuits are packaged in one chip), the working state of the electromechanical interlocking devices cannot be known in time, and hidden dangers are buried for the use safety of the electromechanical interlocking devices.
In order to solve the above technical problem, embodiments of the present application provide a drive control apparatus, a method, and a medium for a plurality of electromechanical interlocks, which will be described below by way of example. For the convenience of understanding the present embodiment, the drive control device of a multi-electromechanical interlock device disclosed in the embodiments of the present application will be described in detail first.
Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating a driving control device of a plurality of electromechanical interlocking devices according to an embodiment of the present application. Here, the electromechanical interlocking device may include an electromagnetic lock, a lightning receptor, and the like.
As shown in fig. 1, a drive control device of a plurality of electromechanical interlocks according to an embodiment of the present application includes: the controller 110 and a plurality of drive circuits D1, D2 · Dn · Dm in one-to-one correspondence with each of the plurality of electromechanical interlocks L1, L2 · Ln · Lm, each of which is connected to the positive pole of a respective dc power source, e.g., electromechanical interlock L1 is connected to the positive pole of dc power source U1, electromechanical interlock L2 is connected to the positive pole of dc power source U2, electromechanical interlock Ln is connected to the positive pole of dc power source Un, and electromechanical interlock Lm is connected to the positive pole of dc power source Um. Here, n and m are positive integers greater than zero and m is greater than n.
In the following, the structure of the driving circuit will be described in detail by taking any one of the driving circuits Dn included in the driving control apparatus of a plurality of electromechanical interlocks provided in the embodiments of the present application as an example in conjunction with fig. 1, and here, it should be understood that the structure and the operation principle of each driving circuit are explained by taking the driving circuit Dn as an example in the present application because the constituent structure of each driving circuit is the same and each driving circuit is independent from each other.
As shown in fig. 1, the driving circuit Dn includes a switching module 10 and a sampling module 20.
A first end of the switch module 10 is connected to an output of the controller 110 and a second end of the switch module 10 is connected to a corresponding electromechanical interlock Ln to drive the electromechanical interlock Ln based on a control signal issued by the controller 110.
The first terminal of the sampling module 20 is connected to the third terminal of the switching module 10, the second terminal of the sampling module 20 is connected to the negative electrode of the dc power supply, a first detection node a is led out from between the first terminal of the sampling module 20 and the third terminal of the switching module 10, the first detection node a is connected to the first input terminal input1 of the controller 110, so that the operating voltage (i.e., the sampling voltage) of the electromechanical interlock device Ln is collected by the controller 110, and the controller 110 determines the operating state of the electromechanical interlock device Ln based on the sampling voltage at the first detection node a. Here, the operating state of the electromechanical interlocking device means that the electromechanical interlocking device is in a normal operating state or in an abnormal operating state.
The specific structure of each block of the driving circuit will be exemplified in detail by specific embodiments below.
Fig. 2 shows a schematic structural diagram of a driving circuit provided in an embodiment of the present application.
As shown in fig. 2, taking as an example any one of the driving circuits Dn included in the driving control apparatus for a plurality of electromechanical interlocks provided in the embodiment of the present application, the switching module 10 includes a first resistor R1 and a switching device Q. As an example, the switching device Q may include any one of: triode, field effect transistor and relay. In the example of fig. 2, the switching device Q is an NPN type transistor.
Specifically, one end of the first resistor R1 is connected to the output terminal output of the controller 110 as the first end of the switch module 10, the other end of the first resistor R1 is connected to the first end of the switching device Q, the second end of the switching device Q is connected to the first end of the electromechanical interlocking device Ln as the second end of the switch module 10, the second end of the electromechanical interlocking device Ln is connected to the positive electrode V _ LOCK of the dc power supply, and the third end of the switching device Q is connected to the first end of the sampling module 20 as the third end of the switch module 10.
The sampling module 20 includes a second resistor R2, wherein one end of the second resistor R2 is connected to the third terminal of the switch module 10 as the first terminal of the sampling module 20, and the other end of the second resistor R2 is connected to the negative electrode PGND of the dc power supply as the second terminal of the sampling module 20.
Specifically, as an example, the driving control signal output by the controller 110 through the output port output may include an electromechanical interlock on control signal and an electromechanical interlock off control signal, and based on the property of the switching device Q, the switching device Q may be actuated in response to the driving control signal issued by the controller 110 to operate or stop the electromechanical interlock Ln.
For example, when the switching device Q is an NPN type triode, when the controller 110 sends a high level signal (an electromechanical interlock device power-on control signal), a current passes through the first resistor R1, the switching device Q and the second resistor R2, a current is formed at the base of the switching device Q, the current opens the collector and emitter paths of the switching device Q, the switching device Q is driven to be turned on, so that the positive electrode V _ LOCK of the dc power source, the electromechanical interlock device Ln, the switching device Q, the second resistor R2 and the negative electrode PGND of the dc power source are connected in series, and the positive electrode V _ LOCK of the dc power source provides an operating current to the electromechanical interlock device Ln to drive the electromechanical interlock device Ln, so that the electromechanical interlock device is turned on.
Accordingly, when the controller 110 issues a low level signal (the electromechanical interlock power-off control signal), the switching device Q may be turned off based on the electromechanical interlock power-off control signal issued by the controller 110, so that the positive electrode V _ LOCK of the dc power supply, the electromechanical interlock Ln, the switching device Q, the second resistor R2, and the negative electrode PGND of the dc power supply are not connected in series, and the dc power supply cannot supply an operating current to the electromechanical interlock Ln, thereby driving the electromechanical interlock Ln to be turned off.
Since each of the driving circuits is independent of each other, in this manner, the controller 110 can control any one of the electromechanical interlocks to be safely turned on individually or a plurality of the electromechanical interlocks to be safely turned on simultaneously regardless of the magnitude of the driving current.
In addition, in the prior art, when abnormal current mostly occurs when the electromechanical interlocking device is clamped or a coil in the electromechanical interlocking device is short-circuited, if the abnormal current occurs, the working current of the electromechanical interlocking device can be increased rapidly, and if the abnormal current is not processed in time, the electromechanical interlocking device and a driving circuit connected with the electromechanical interlocking device can be burnt in a short time. In order to prevent this, the present application proposes a method of protecting a drive electromechanical interlock device and its connected drive circuit from damage by directly measuring the operating current of the electromechanical interlock device in a very short time.
Referring again to FIG. 2, under the connection of the devices shown in FIG. 2, the controller 110 may determine the operating state of the electromechanical interlock device based on the sampled voltage at the first sensing node A.
For example, when the switching device Q is an NPN type triode, after the controller 110 sends a high level signal (an electromechanical interlock energization control signal), the switching device Q is driven to be turned on, so that the positive electrode V _ LOCK of the dc power supply, the electromechanical interlock device Ln, the switching device Q, the second resistor R2, and the negative electrode PGND of the dc power supply are connected in series, the dc power supply provides a working current to the electromechanical interlock device Ln to drive the electromechanical interlock device Ln to operate, at this time, there exists a voltage drop at the first detection node a, which is equivalent to the working voltage of the electromechanical interlock device Ln, the controller 110 collects the working voltage (i.e., the sampling voltage) at the first detection node a, performs analog-to-digital conversion on the sampling voltage, and restores the sampling voltage to the working current of the electromechanical interlock device Ln after calculation, if the working current obtained after restoration is greater than a preset working current, it is determined that the electromechanical interlock device Ln is in an abnormal operating state, for example, the abnormal operating state of the electromechanical interlock device may be a state that the electromechanical interlock device is stuck or a coil inside the electromechanical interlock device is short-circuited, and a low level signal (an electromechanical interlock device power-off control signal) may be sent by the controller 110 to turn off the switching device Q, so that the positive electrode V _ LOCK of the dc power supply, the electromechanical interlock device Ln, the switching device Q, the second resistor R2, and the negative electrode PGND of the dc power supply are not connected in series, and the dc power supply cannot provide an operating current to the electromechanical interlock device Ln, thereby driving the electromechanical interlock device Ln to be turned off, and timely cutting off the driving circuit to protect the electromechanical interlock device Ln and the driving circuit from being burned.
The detection of the working current of the electromechanical interlocking device may occur when the electromechanical interlocking device needs to be opened or when the controller 110 is started, the detection of the working current of the electromechanical interlocking device when the controller 110 is started is different from the detection of the working current of the electromechanical interlocking device when the electromechanical interlocking device needs to be opened.
Whether the electromechanical interlocking device is in an abnormal working state when the electromechanical interlocking device is started or detected when the electromechanical interlocking device is driven to be started, the electromechanical interlocking device with the fault is marked and reported to be required to be overhauled, the electromechanical interlocking device is not started before power-off overhaul, and damage to a driving circuit caused by repeatedly starting the electromechanical interlocking device with the fault can be avoided through the mode.
In addition, optionally, a clamping diode is arranged inside each port of the controller 110 in the present application, so as to limit the voltage of each port of the controller 110 not to exceed the operating voltage of the controller 110, so as to protect the controller 110.
In addition, those skilled in the art will appreciate that the process of measuring the operating current by the controller in the present application can be completed in a time of the order of microseconds, which is so short that the protection circuit is not damaged in most cases even if a fault current is formed. Because the circuit and the electromagnetic lock must be burned out for a sufficient time to accumulate the temperature increase due to the large current, the device can be damaged only when the temperature is increased to a certain degree.
Fig. 3 shows a schematic structural diagram of a driving circuit according to another embodiment of the present application.
Furthermore, each driving circuit may additionally include a voltage dividing module 30 (as shown in fig. 3), wherein a first end of the voltage dividing module 30 is connected to the electromechanical interlocking device (the electromechanical interlocking device Ln in fig. 3), a second end of the voltage dividing module 30 is connected to a negative electrode of the dc power source, a second detection node B is led out from the voltage dividing module 30, the second detection node B is connected to a second input terminal input2 of the controller 110, and the controller 110 determines the connection state of the electromechanical interlocking device based on the divided voltage at the second detection node B.
Taking any one of the driving circuits Dn included in the driving control devices of the plurality of electromechanical interlocks provided in the embodiment of the present application as an example, in an example, on the basis of fig. 2, the driving circuit further includes a voltage dividing module 30, as shown in fig. 3, the voltage dividing module 30 includes a third resistor R3 and a fourth resistor R4, wherein one end of the third resistor R3 is connected to a first end of the electromechanical interlock Ln as a first end of the voltage dividing module 30, a second end of the electromechanical interlock Ln is connected to a positive electrode V _ LOCK of the dc power supply, another end of the third resistor R3 is connected to one end of the fourth resistor R4, another end of the fourth resistor R4 is connected to a negative electrode PGND of the dc power supply as a second end of the voltage dividing module 30, and a second detection node B is led out from between the another end of the third resistor R3 and one end of the fourth resistor R4.
Specifically, when the electromechanical interlock device Ln is not driven, the switching device Q is turned off, if the electromechanical interlock device Ln is normally turned on or the coil of the electromechanical interlock device Ln is not turned off, the voltage of the dc power source is turned on to the voltage dividing line consisting of R2 and R3 via the coil inside the electromechanical interlock device Ln to form a weak current, there will be a divided voltage at the second detection node B that can be detected by the controller 110, if the controller 110 detects the divided voltage, the controller 110 determines that the electromechanical interlock device Ln is normally turned on or the coil of the electromechanical interlock device Ln is not turned off, whereas, if the controller 110 does not detect the divided voltage at the second detection node B, that is, the divided voltage is 0 v, the controller 110 determines that the electromechanical interlock device Ln is not normally turned on or the coil of the electromechanical interlock device Ln is turned off, in which case, the controller 110 does not issue a drive control signal to open the electromechanical interlock Ln. In addition, since the resistance values of R2 and R3 are sufficiently large, the current in the current loop formed by R2 and R3 and the electromechanical interlock Ln is extremely small, which does not cause the electromechanical interlock Ln to open. In this way, it is possible to detect whether the electromechanical interlock is normally switched on or whether the coil is disconnected before the electromechanical interlock is not driven, thereby preventing the occurrence of a situation in which the electromechanical interlock in an abnormally switched-on state is driven.
Fig. 4 shows a schematic structural diagram of a driving circuit according to another embodiment of the present application.
Additionally, each driving circuit may further include a protection module 40 (as shown in fig. 4), wherein a first end of the protection module 40 is connected to a first end of the electromechanical interlock device (the electromechanical interlock device Ln in fig. 3), a second end of the protection module is connected to a second end of the electromechanical interlock device, the first end of the electromechanical interlock device is further connected to a second end of the switching module 10, and the second end of the electromechanical interlock device is connected to the positive electrode of the dc power source.
Taking any one of the driving circuits Dn included in the driving control devices of the plurality of electromechanical interlocks provided in the embodiments of the present application as an example, in an example, on the basis of fig. 3, the driving circuit further includes a protection module 40, as shown in fig. 4, the protection module includes a diode d, wherein an anode of the diode d is connected to a first end of the electromechanical interlock Ln as a first end of the protection module 40, and a cathode of the diode d is connected to a second end of the electromechanical interlock Ln as a second end of the protection module 40.
Specifically, after the switching device Q is driven to be turned on, so that the electromechanical interlock device Ln is unlocked, if the controller 110 sends a low level signal (electromechanical interlock device power-off control signal), the switching device Q may be turned off based on the electromechanical interlock device power-off control signal sent by the controller 110, at this time, the electromechanical interlock device Ln may generate energy of induced electromotive force when the power is off, and in the present application, the energy of induced electromotive force generated when the electromechanical interlock device Ln is off may be consumed by the protection module 40, and in this way, it may be ensured that the switching module is not burned, thereby improving the safety of the driving control apparatus of the plurality of electromechanical interlock devices as described in the present application.
In summary, according to the driving control apparatus for multiple electromechanical interlocks provided in the embodiments of the present application, the multiple electromechanical interlocks can be simultaneously controlled to be safely opened without considering the magnitude of the driving current, and the failed electromechanical interlocks can be timely locked when the working current of the electromechanical interlocks is abnormal, so that the failed electromechanical interlocks are prevented from being repeatedly opened, thereby protecting the circuit and reducing the loss.
While the present application has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present application as defined by the following claims.
Claims (8)
1. A drive control apparatus of a plurality of electromechanical interlocks, wherein the drive control apparatus comprises a controller and a plurality of drive circuits in one-to-one correspondence with each of the plurality of electromechanical interlocks, each of the electromechanical interlocks being connected to a positive pole of a corresponding dc power source, each of the drive circuits comprising:
a switch module having a first end connected to an output of the controller and a second end connected to a corresponding electromechanical interlock to drive the electromechanical interlock based on a control signal from the controller,
the first end of the sampling module is connected to the third end of the switch module, the second end of the sampling module is connected to the negative electrode of the direct-current power supply, a first detection node is led out from the position between the first end of the sampling module and the third end of the switch module and connected to the first input end of the controller, and the controller determines the working state of the electromechanical interlocking device based on the sampling voltage at the first detection node.
2. The drive control device according to claim 1, wherein each of the drive circuits further includes a voltage dividing module,
the first end of the voltage division module is connected to the electromechanical interlocking device, the second end of the voltage division module is connected to the negative electrode of the direct-current power supply, a second detection node is led out of the voltage division module, the second detection node is connected to the second input end of the controller, and the controller determines the connection state of the electromechanical interlocking device based on the divided voltage at the second detection node.
3. The drive control apparatus according to claim 1, wherein the switching module includes a first resistor and a switching device,
one end of the first resistor serves as a first end of the switch module and is connected to an output end of the controller, the other end of the first resistor is connected to a first end of the switch device, a second end of the switch device serves as a second end of the switch module and is connected to a first end of the electromechanical interlocking device, a second end of the electromechanical interlocking device is connected to a positive electrode of the direct current power supply, and a third end of the switch device serves as a third end of the switch module and is connected to a first end of the sampling module.
4. The drive control device of claim 3, wherein the sampling module includes a second resistor,
one end of the second resistor is used as the first end of the sampling module and connected to the third end of the switch module, and the other end of the second resistor is used as the second end of the sampling module and connected to the negative electrode of the direct current power supply.
5. The drive control device according to claim 2, wherein the voltage dividing module includes a third resistor and a fourth resistor,
wherein one end of the third resistor is connected to the first end of the electromechanical interlocking device as the first end of the voltage division module, the second end of the electromagnetic lock is connected to the positive electrode of the direct current power supply, the other end of the third resistor is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the negative electrode of the direct current power supply as the second end of the voltage division module,
wherein the second detection node is drawn from between the other end of the third resistor and the one end of the fourth resistor.
6. The drive control device according to claim 1, wherein each of the drive circuits further includes a protection module,
wherein a first end of the protection module is connected to a first end of the electromechanical interlock device, a second end of the protection module is connected to a second end of the electromechanical interlock device, the first end of the electromechanical interlock device is also connected to a second end of the switch module, and the second end of the electromechanical interlock device is connected to a positive pole of a direct current power source.
7. The drive control apparatus according to claim 6, wherein the protection module includes a diode,
wherein an anode of the diode is connected as a first end of the protection module to a first end of the electromechanical interlock device and a cathode of the diode is connected as a second end of the protection module to a second end of the electromechanical interlock device.
8. The drive control apparatus according to claim 3, wherein the switching device includes any one of: triode, field effect transistor and relay.
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| CN202022559270.XU CN213125995U (en) | 2020-11-06 | 2020-11-06 | Drive control apparatus for a plurality of electromechanical interlocks |
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| CN202022559270.XU CN213125995U (en) | 2020-11-06 | 2020-11-06 | Drive control apparatus for a plurality of electromechanical interlocks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217499A (en) * | 2020-11-06 | 2021-01-12 | 成都扭了么网络科技有限公司 | Drive control apparatus, method and storage medium for a plurality of electromechanical interlocks |
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2020
- 2020-11-06 CN CN202022559270.XU patent/CN213125995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217499A (en) * | 2020-11-06 | 2021-01-12 | 成都扭了么网络科技有限公司 | Drive control apparatus, method and storage medium for a plurality of electromechanical interlocks |
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