CN112054790B - Time delay switching device, power supply system and control method of time delay switching device - Google Patents
Time delay switching device, power supply system and control method of time delay switching device Download PDFInfo
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- CN112054790B CN112054790B CN202010946708.1A CN202010946708A CN112054790B CN 112054790 B CN112054790 B CN 112054790B CN 202010946708 A CN202010946708 A CN 202010946708A CN 112054790 B CN112054790 B CN 112054790B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 62
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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Abstract
A delay switch device, a power supply system and a control method of the delay switch device belong to the technical field of circuit control. The delay switch device comprises a delay switch, a delay power supply and a power supply control switch, wherein the delay switch comprises a first power transmission end, a second power transmission end and a first control end, the first power transmission end is connected with the delay power supply, the second power transmission end is connected between a power supply and electric equipment in a power supply system, the first control end is connected with a connecting end of the power supply control switch, and a fixed end of the power supply control switch is grounded. Compared with the traditional delay circuit using the delay relay, the application reduces the fault point in the operation process of the circuit, is convenient for better investigation, supplies power to electric equipment in the delay switch device through the dual power supply of the delay power supply and the power supply, and reduces the phenomenon that the traditional delay relay body has faults in the delay circuit.
Description
Technical Field
The present application relates to the field of circuit control technologies, and in particular, to a delay switch device, a power supply system, and a control method of the delay switch device.
Background
Along with the increasing intelligent requirements of the crane, the safety design of the whole power supply of the crane is particularly important. At present, key parts such as an engine, a gearbox and the like all require a delay function on a power supply.
The traditional crane is realized by adopting a single independent power supply or an independent delay relay, and when the delay relay body fails, the delay function of the power supply cannot be realized, so that the delay method greatly reduces the working efficiency of electric equipment, and information in key parts in the electric equipment is easy to cause and cannot be stored and memorized in time.
Disclosure of Invention
In view of the above, the embodiment of the application provides at least a delay switch device, a power supply system and a delay method, by directly installing a delay switch with a delay function in the delay switch device, compared with a traditional delay circuit using a delay relay, the delay switch device reduces fault points in the circuit operation process, is convenient for better investigation, and reduces the phenomenon that the delay function of a power supply cannot be realized when the traditional delay relay body fails in the delay circuit by supplying power to electric equipment in the delay switch device through dual power sources of the delay power supply and the power supply, so that the delay method greatly improves the working efficiency of the electric equipment, and enhances the functions of timely storing and memorizing information in key parts in the electric equipment.
The application mainly comprises the following aspects:
in a first aspect, an embodiment of the present application provides a delay switch device, which is applied to a power supply system, where the delay switch device includes a delay switch, a delay power supply, and a power supply control switch, where the delay switch includes a first power transmission end, a second power transmission end, and a first control end, where the first power transmission end is connected to the delay power supply, the second power transmission end is connected between a power supply and an electric device in the power supply system, and the first control end is connected to a connection end of the power supply control switch, and a fixed end of the power supply control switch is grounded;
when the power supply control switch is turned on, the delay switch device works;
when the power supply supplies power to the electric equipment, the delay switch is in a conducting state, and the first power transmission end and the second power transmission end are conducted so that the power supply charges the delay power supply;
when the power supply stops supplying power to the electric equipment, the delay switch enters a delay state, the first power transmission end and the second power transmission end are conducted, and the delay power supply supplies power to the electric equipment;
when the delay switch device is in a delay state for a preset delay time, the delay switch is switched to a cut-off state, and the first power transmission end and the second power transmission end are not conducted.
In one possible implementation manner, the delay switch device further comprises an emergency cut-off switch, and two ends of the emergency cut-off switch are respectively and electrically connected with the second control end and the third control end of the delay switch.
In one possible implementation manner, the delay switch includes a main control chip, a trigger end of the main control chip is used as the first control end and is connected with a connection end of the power control switch, and the main control chip is used for controlling the delay switch device to work after detecting a trigger signal of the power control switch.
In one possible implementation manner, the delay switch further includes an electromagnetic switch coil and a main control switch, the electromagnetic switch coil and the main control switch are respectively connected with the main control chip, two ends of the main control switch are respectively connected with the first power transmission end and the second power transmission end, the main control chip can control the electromagnetic switch coil to be electrified, and the electromagnetic switch coil can control the main control switch to be turned on and off.
In a possible implementation manner, when the power control switch is turned on, the main control chip controls the electromagnetic switch coil to be electrified after detecting the trigger signal, so as to control the conduction between two ends of the main control switch, and enable the power supply to charge the time delay power supply;
when the power supply stops supplying power to the electric equipment, the main control chip controls the delay switch to enter a delay state, the two ends of the main control switch are conducted, and the delay power supply supplies power to the electric equipment;
when the delay switch device is in a delay state for a preset delay time, the main control chip controls the electromagnetic switch coil to be powered off, and the two ends of the main control switch are cut off.
In a second aspect, an embodiment of the present application further provides a power supply system, which is applied to the delay switch device according to the first aspect, where the power supply system includes any one of the delay switch devices according to the first aspect, a power supply, and a powered device.
In one possible implementation manner, the power supply system further comprises a display device and an alarm device, wherein the input end of the display device and the input end of the alarm device are connected with the output end of the delay switch device, the display device is used for displaying alarm information sent by the alarm device and electric quantity conditions of the power supply and the delay power supply, and the alarm device is used for reminding abnormal conditions of the power supply system.
In a third aspect, an embodiment of the present application further provides a control method of a delay switch device, applied to the delay switch device according to the first aspect, where the control method includes:
judging the state of the delay switch device according to the power supply condition of the power supply to the electric equipment;
if the power supply stops supplying power to the electric equipment, determining that the state of the delay switch device is a delay state;
determining the magnitude relation between the delay time and the preset delay time according to the delay time of the delay switch device in the delay state;
and if the delay time of the delay switch device in the delay state is greater than the preset delay time, the delay switch device is powered off.
In one possible implementation manner, if the power supply stops supplying power to the electric device, determining that the state of the delay switch device is a delay state includes:
if the power supply stops supplying power to the electric equipment, a delay power supply is used for supplying power to the electric equipment;
and determining the state of the delay switch device which uses the delay power supply to supply power to the electric equipment as a delay state.
In one possible implementation manner, if the delay time of the delay switch device in the delay state is greater than the preset delay time, the delay switch device is powered off, including:
if the delay time of the delay switch device in the delay state is larger than the preset delay time, determining that a main control chip in the delay switch controls the electromagnetic switch coil to be powered off;
if the main control chip controls the electromagnetic switch coil to be powered off, the two ends of the main control switch are cut off, and the delay switch device is powered off.
In the embodiment of the application, the delay switch with a delay function is directly arranged in the delay switch device, compared with a traditional delay circuit using a delay relay, the fault point in the running process of the circuit is reduced, the circuit is convenient to better find, and the electric equipment in the delay switch device is powered by the dual power supply of the delay power supply and the power supply, so that the phenomenon that the delay function of the power supply cannot be realized when the traditional delay relay body fails in the delay circuit is reduced, the working efficiency of the electric equipment is greatly improved by the delay method, and the function of timely storing and memorizing the information in key parts in the electric equipment is enhanced.
The power supply system and the delay switch device provided by the application can send out alarm reminding for abnormal conditions such as low voltage, loose binding post, overlarge circuit, power failure of the whole vehicle and the like, so that the working efficiency is improved, and the safety of the working personnel is greatly enhanced.
In order to make the above 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 needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a circuit diagram of a delay switch device according to an embodiment of the present application;
FIG. 2 shows a circuit diagram of another delay-action switching device according to an embodiment of the present application;
FIG. 3 shows a circuit diagram of a power supply system according to an embodiment of the present application;
fig. 4 shows a flowchart of a delay method according to an embodiment of the present application.
Description of main reference numerals:
in the figure: 100-delay switching means; 110-a delay switch; 120-a power control switch; 130-delay power supply; 140-emergency cut-off switch; 300-a power supply system; 310-a power supply; 320-electric equipment; 330-a display device; 340-alarm device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be appreciated that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art based on embodiments of the application without making any inventive effort, fall within the scope of the application.
In order to enable those skilled in the art to make and use the present disclosure, the following embodiments are provided in connection with a particular application scenario "power supply system", and the generic principles defined herein may be applied to other embodiments and applications scenarios without departing from the spirit and scope of the present disclosure.
The system and the method in the embodiment of the application can be applied to any scene needing to carry out delay power supply, the embodiment of the application does not limit specific application scenes, and any scheme using the delay switch device, the power supply system and the delay method provided by the embodiment of the application is within the protection scope of the application.
It is worth noting that, before the application is put forward, the traditional crane is realized by adopting a single independent power supply or an independent delay relay, and when the delay relay body fails, the delay function of the power supply cannot be realized, so that the delay method greatly reduces the working efficiency of the electric equipment, and the information in key parts in the electric equipment cannot be stored and memorized in time easily.
In view of the above problems, embodiments of the present application provide a delay switch device, a power supply system, and a delay control method, by directly installing a delay switch having a delay function in the delay switch device, compared with a conventional delay circuit using a delay relay, the fault point in the circuit operation process is reduced, better investigation is facilitated, and the dual power supplies of the delay power supply and the power supply power to the electric devices in the delay switch device, so that the phenomenon that the delay function of the power supply cannot be realized when the conventional delay relay body fails in the delay circuit is reduced, the working efficiency of the electric devices is greatly improved by such a delay method, and the functions of timely storing and memorizing information in key parts in the electric devices are enhanced.
In order to facilitate understanding of the present application, the following detailed description of the technical solution provided by the present application is provided in connection with specific embodiments.
Referring to fig. 1 to 2, fig. 1 is a circuit diagram of an electrical delay switch device according to an embodiment of the application. As shown in fig. 1 to 2, the delay switch device 100 provided in the embodiment of the present application is applied to a power supply system 300, where the delay switch device 100 includes a delay switch 110, a delay power supply 130, a power supply control switch 120, and an emergency cut-off switch 140, where the delay switch 110 includes a first power transmission end, a second power transmission end, and a first control end, where the first power transmission end is connected to the delay power supply 130, the second power transmission end is connected between a power supply 310 and an electric device 320 in the power supply system 300, the first control end is connected to a connection end of the power supply control switch 120, a fixed end of the power supply control switch 120 is grounded, and two ends of the emergency cut-off switch 140 are respectively electrically connected to a second control end and a third control end of the delay switch 110.
The delay switch 110 is configured to process, receive, send and analyze a normal working state and a delay state of the delay switch device 100, and through different working states, different power supply devices are adopted to provide electric energy for the power supply system 300, the bottom of the first power transmission end is connected with the delay power supply 130 through a first terminal, the bottom of the second power transmission end is connected between the power supply 310 and the electric equipment 320 in the power supply system 300 through a second terminal, the emergency cut-off switch 140 is configured to be connected with an external emergency power button, when an emergency needs to power off the power supply system 300, an operator manually presses the external emergency power button, the emergency power button drives the emergency cut-off switch 140 to be closed, when the emergency cut-off switch 140 is closed, the master control chip controls the electromagnetic switch coil to be opened according to the emergency stop signal, and further controls the delay switch device 100 to be opened, so that whether the electric energy is stored in the delay power supply 130 or not, and the power supply system 300 is not supplied.
When the power control switch 120 is closed, the time delay switch device 100 operates.
In this step, the power control switch 120 is in a closed state in which the time delay switch device 100 is operating normally.
When the power supply 310 supplies power to the electric device 320, the delay switch 110 is in a conducting state, and the first power transmission end and the second power transmission end are conducted, so that the power supply 310 charges the delay power supply 130.
In this step, when the power supply 310 supplies power to the electric device 320, it is indicated that the power supply system 300 is in a power supply state of normal operation, and meanwhile, the power supply 310 may also charge the delay power supply 130, so that when the power supply system 300 is in a delay state, the delay power supply 130 may continue to supply power to the electric device 320.
Wherein the power supply 310 may be, but not limited to, a generator, the electric device 320 may be, but not limited to, an electric motor or a starting motor, and the electric device 320 is configured to convert the electric energy provided in the power supply 310 into mechanical energy, and provide mechanical energy for mechanical components at other positions on the crane.
When the power supply 310 stops supplying power to the electric device 320, the delay switch 110 enters a delay state, the first power transmission end and the second power transmission end are conducted, and the delay power supply 130 supplies power to the electric device.
When the delay switch device 100 is in the delay state for a preset delay time, the delay switch 110 is switched to the off state, and the first power transmission terminal and the second power transmission terminal are not turned on.
In this step, after the delay switch device 100 is in the delay state for a preset delay time, the delay switch 110 is turned off to control the first terminal at the bottom of the first power transmission terminal to be disconnected from the second terminal at the bottom of the second power transmission terminal, so that no matter whether the delay power supply 130 stores electric energy or not, the power supply system 300 does not supply power.
Optionally, the delay switch 110 includes a main control chip, an electromagnetic switch coil and a main control switch, a trigger end of the main control chip is used as a first control end and is connected with a connection end of the power control switch 120, the main control chip is used for controlling the operation of the delay switch device after detecting a trigger signal of the power control switch 120, the electromagnetic switch coil and the main control switch are respectively connected with the main control chip, two ends of the main control switch are respectively connected with a first power transmission end and a second power transmission end, the main control chip can control the electromagnetic switch coil to be electrified, and the electromagnetic switch coil can control the main control switch to be turned on and off.
In a specific embodiment, the electromagnetic switch coil is a coil switch with a time delay function, and specific time delay time length can be set according to different time delay requirements in an operation environment, and the electromagnetic switch coil controls on-off between a first binding post at the bottom of a first power transmission end and a second binding post at the bottom of a second power transmission end through a main control switch.
Optionally, when the power control switch is turned on, the main control chip controls the electromagnetic switch coil to be electrified after detecting the trigger signal, so as to control the conduction between two ends of the main control switch, so that the power supply charges the delay power supply 130.
When the power supply 310 stops supplying power to the electric device 320, the main control chip controls the delay switch 110 to enter a delay state, the two ends of the main control switch are conducted, and the delay power supply 130 supplies power to the electric device.
When the delay switch 110 device is in a delay state for a preset delay time, the main control chip controls the electromagnetic switch coil to be powered off, and the two ends of the main control switch are cut off.
Compared with the delay device in the prior art, the delay switch device provided by the embodiment of the application has the advantages that the delay switch 110 with a delay function is directly arranged in the delay switch device 100, compared with the traditional delay circuit using a delay relay, the fault point in the circuit operation process is reduced, the better investigation is facilitated, the electric equipment 320 in the delay switch device 100 is supplied with power through the dual power supplies of the delay power supply 130 and the power supply 310, the phenomenon that the delay function of the power supply cannot be realized when the traditional delay relay body fails in the delay circuit is reduced, the working efficiency of the electric equipment 320 is greatly improved by adopting the delay method, and the functions of timely storing and memorizing the information in key parts in the electric equipment 320 are enhanced.
Fig. 3 is a circuit diagram of a power supply system according to an embodiment of the application. As shown in fig. 3, the power supply system 300 provided in the embodiment of the present application is applied to any delay switch device 100 according to the first aspect, where the power supply system 300 includes a delay switch device 100, a power supply 310, an electric device 320, a display device 330, and an alarm device 340, where an input end of the display device 330 and an input end of the alarm device 340 are electrically connected to an output end of the delay switch device 100, and the display device 330 is configured to display alarm information sent by the alarm device 340 and electric quantity conditions of the power supply 310 and the delay power supply 130, and the alarm device 340 is configured to remind about an abnormal condition of the power supply system 300.
The power supply 310 is configured to provide power to the electric device 320 and the power supply system 300 in a normal working state.
In this step, the abnormal situation of the power supply system 300 includes: abnormal conditions such as low voltage, loosening abnormal conditions of binding posts, power-off abnormal conditions of the whole vehicle, current fluctuation/current short circuit and the like.
The abnormal situation that the voltage is too low is specifically:
the voltage of the delay power supply 130 at the first power transmission end is obtained.
And judging the voltage of the delay power supply 130 and the preset voltage according to the voltage of the delay power supply 130.
If the voltage of the delay power supply 130 is smaller than the preset voltage, it is determined that an abnormal condition of too low voltage occurs, and the main control chip controls the alarm device 340 to send out an alarm alert.
In a specific embodiment, the voltage of the delay power supply 130 is used as alarm information, an alarm voltage value is defined through a preset voltage, an alarm prompt is sent through the alarm device 340, and then the display device 330 displays the alarm information, so that the operator can overhaul the device in time.
The abnormal condition of loosening of the binding post is specifically:
and acquiring initial wiring resistance between the first power transmission end and wiring resistance between the first power transmission end and the first power transmission end in actual work.
And judging the magnitude relation of the initial wiring resistance of the wiring resistance according to the initial wiring resistance and the wiring resistance.
In a specific embodiment, the initial wiring resistance is an initial resistance between a first binding post connected to the bottom of the first power transmission end and a second binding post connected to the bottom of the second power transmission end in a normal working state, where the initial wiring resistance is defined as a resistance value capable of ensuring normal operation of the power supply system 300.
If the wiring resistance is greater than the threshold value of the initial wiring resistance, the condition that the wiring resistance is greater than the threshold value of the initial wiring resistance is determined to be loosening of the binding post, and the main control chip controls the alarm device 340 to send out an alarm prompt.
In a specific embodiment, when the wiring resistance is greater than the threshold value of the initial wiring resistance, it is proved that the resistance value between the first binding post connected to the bottom of the first power transmission end and the second binding post connected to the bottom of the second power transmission end cannot meet the requirement of the power supply system 300 for normal operation, and at this time, by detecting the overheat or overload function of the binding posts, it is determined that the first binding post or the second binding post is loose or rusted, and the main control chip controls the alarm device 340 to send an alarm alert.
The abnormal condition of the power failure of the whole vehicle is specifically as follows:
and acquiring an emergency cut-off signal sent by the emergency cut-off switch 140.
And the main control chip controls the electromagnetic switch coil to be disconnected through the emergency cut-off signal, so that the abnormal condition of the whole vehicle power failure is determined, and the main control chip controls the alarm equipment 340 to send out an alarm prompt.
In a specific embodiment, when an emergency situation occurs and power supply system 300 needs to be powered off, an operator manually presses an external emergency power button, the emergency power button drives emergency cut-off switch 140 to be closed, an emergency stop signal is transmitted to a main control chip in delay switch device 100, the main control chip controls a magnetic switch coil to be disconnected, so that a first binding post at the bottom of a first power transmission end is disconnected from a second binding post at the bottom of a second power transmission end, and a whole vehicle power supply is cut off, and no matter whether electric energy is stored in delay power supply 130 or not at this time, power supply system 300 does not supply power.
The abnormal conditions of the current fluctuation/short circuit are specifically as follows:
and acquiring current between the first power transmission end and the second power transmission end.
And judging the magnitude relation between the current and the preset current according to the current between the first power transmission end and the second power transmission end.
If the current is greater than the preset current, it is determined that an abnormal condition that the current of the whole vehicle is too large occurs, and the main control chip controls the alarm device 340 to send out an alarm prompt.
In a specific embodiment, when the current between the first power transmission end and the second power transmission end is greater than the preset current, it is indicated that a large current fluctuation occurs in the power supply system 300, and at this time, the main control chip controls the alarm device 340 to send an alarm alert.
Among these, the cause of the simultaneous current fluctuation may be occurrence of a short-circuit fault or the like.
Compared with the power supply system in the prior art, the power supply system provided by the embodiment of the application has the advantages that the delay switch 110 with the delay function is directly arranged in the delay switch device 100, compared with the traditional delay circuit using the delay relay, the fault point in the circuit operation process is reduced, the better investigation is facilitated, the electric equipment 320 in the delay switch device 100 is supplied with power through the dual power supply of the delay power supply 130 and the power supply 310, the phenomenon that the delay function of the power supply cannot be realized when the traditional delay relay body fails in the delay circuit is reduced, the working efficiency of the electric equipment 320 is greatly improved by the delay method, and the functions of timely storing and memorizing information in key parts in the electric equipment 320 are enhanced.
Fig. 4 is a flowchart of a control method of a delay switch device according to an embodiment of the application. As shown in fig. 4, the control method of the delay switch device provided by the embodiment of the present application is applied to any one of the delay switch devices 100, and the control method includes:
s401, judging the state of the delay switch device 100 according to the power supply condition of the power supply 310 to the electric equipment 320.
In this step, under the normal power supply condition, the main control chip of the electric device 320 detects whether the main control chip receives the trigger signal for closing the power control switch 120, and if the main control chip can receive the trigger signal for closing the power control switch 120, the electromagnetic switch coil is controlled to be electrified, so that conduction between two ends of the main control switch is controlled.
S402, if the power supply 310 stops supplying power to the electric device 320, it is determined that the state of the delay switch device 100 is a delay state.
In this step, in a state where the delay switch device 100 is normally operated, the power supply 310 supplies power to the electric device 320, if the power supply 310 stops supplying power to the electric device 320, which indicates that the delay switch device 100 is in a delay state, the main chip controls the electromagnetic switch coil in the delay switch 110 to continue to be energized within a preset delay time, so as to control the conduction between the two ends of the main switch, determine the delay conduction between the first power transmission end and the second power transmission end of the delay switch 110, and implement the set delay function within the preset time.
S403, determining the relationship between the delay time and the preset delay time according to the delay time of the delay switch device 100 in the delay state.
In this step, the delay time is determined by the length of the preset delay time, and the operator can automatically set the preset delay time according to the actual operation requirement.
S404, if the delay time of the delay switch device 100 in the delay state is greater than the preset delay time, the delay switch device 100 is powered off.
Optionally, if the power supply 310 stops supplying power to the electric device 320, determining that the state of the delay switch device 100 is a delay state includes:
if the power supply 310 stops supplying power to the electric device 320, the delay power supply 130 is used to supply power to the electric device 320.
The state of the time delay switching device 100 using the time delay power supply 130 to power the powered device 320 is determined to be a time delay state.
Optionally, if the delay time of the delay switch device 100 in the delay state is greater than the preset delay time, the delay switch device 100 is powered off, including:
if the delay time of the delay switch device 100 in the delay state is greater than the preset delay time, it is determined that the main control chip in the delay switch 110 controls the electromagnetic switch coil to be powered off.
If the main control chip controls the electromagnetic switch coil to be powered off, the two ends of the main control switch are cut off, and the time delay switch device 100 is powered off.
Compared with the delay method in the prior art, the delay method provided by the embodiment of the application has the advantages that the delay switch 110 with the delay function is directly arranged in the delay switch device 100, compared with the traditional delay circuit using the delay relay, the fault point in the circuit operation process is reduced, the better investigation is facilitated, the electric equipment 320 in the delay switch device 100 is supplied with power through the dual power supply of the delay power supply 130 and the power supply 310, the phenomenon that the delay function of the power supply cannot be realized when the traditional delay relay body fails in the delay circuit is reduced, the working efficiency of the electric equipment 320 is greatly improved, and the functions of timely storing and memorizing information in key parts in the electric equipment 320 are enhanced.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (9)
1. The delay switch device is characterized by comprising a delay switch, a delay power supply and a power supply control switch, wherein the delay switch comprises a first power transmission end, a second power transmission end and a first control end;
when the power supply control switch is turned on, the delay switch device works;
when the power supply supplies power to the electric equipment, the delay switch is in a conducting state, and the first power transmission end and the second power transmission end are conducted so that the power supply charges the delay power supply;
when the power supply stops supplying power to the electric equipment, the delay switch enters a delay state, the first power transmission end and the second power transmission end are conducted, and the delay power supply supplies power to the electric equipment;
when the delay switch device is in a delay state for a preset delay time, the delay switch is switched to a cut-off state, and the first power transmission end and the second power transmission end are not conducted;
the delay switch device further comprises an emergency cut-off switch, and two ends of the emergency cut-off switch are respectively and electrically connected with a second control end and a third control end of the delay switch.
2. The delay switch of claim 1 wherein the delay switch comprises a master control chip, a trigger end of the master control chip is used as the first control end and is connected with a connection end of the power control switch, and the master control chip is used for controlling the delay switch device to work after detecting a trigger signal of the power control switch.
3. The delay switch of claim 2 further comprising an electromagnetic switch coil and a master switch, wherein the electromagnetic switch coil and the master switch are respectively connected with the master control chip, two ends of the master switch are respectively connected with the first power transmission end and the second power transmission end, the master control chip can control the electromagnetic switch coil to be electrified, and the electromagnetic switch coil can control the master switch to be turned on and off.
4. The delay switch of claim 3 wherein when said power control switch is turned off, said master control chip is operative to control energization in said electromagnetic switch coil after said trigger signal is detected, thereby controlling conduction between the two ends of said master control switch to cause said power supply to charge said delay power supply;
when the power supply stops supplying power to the electric equipment, the main control chip controls the delay switch to enter a delay state, the two ends of the main control switch are conducted, and the delay power supply supplies power to the electric equipment;
when the delay switch device is in a delay state for a preset delay time, the main control chip controls the electromagnetic switch coil to be powered off, and the two ends of the main control switch are cut off.
5. A power supply system, characterized in that it comprises a time delay switching device as claimed in any one of claims 1 to 4, a power supply and a consumer.
6. The power supply system according to claim 5, further comprising a display device and an alarm device, wherein an input end of the display device and an input end of the alarm device are connected with an output end of the delay switch device, the display device is used for displaying alarm information sent by the alarm device and electric quantity conditions of the power supply and the delay power supply, and the alarm device is used for reminding abnormal conditions of the power supply system.
7. A control method of a time delay switching device, characterized in that it is applied to a time delay switching device as claimed in any one of claims 1 to 4, the control method comprising:
judging the state of the delay switch device according to the power supply condition of the power supply to the electric equipment;
if the power supply stops supplying power to the electric equipment, determining that the state of the delay switch device is a delay state;
and determining the magnitude relation between the delay time and the preset delay time according to the delay time of the delay switch device in the delay state.
8. The method for controlling a delay switch of claim 7, wherein determining that the state of the delay switch is a delay state if the power supply stops supplying power to the powered device comprises:
if the power supply stops supplying power to the electric equipment, a delay power supply is used for supplying power to the electric equipment;
and determining the state of the delay switch device which uses the delay power supply to supply power to the electric equipment as a delay state.
9. The control method of a delay switching device according to claim 7, wherein if the delay time of the delay switching device in a delayed state is greater than the preset delay time, the delay switching device is powered off, comprising:
if the delay time of the delay switch device in the delay state is larger than the preset delay time, determining that a main control chip in the delay switch controls the electromagnetic switch coil to be powered off;
if the main control chip controls the electromagnetic switch coil to be powered off, the two ends of the main control switch are cut off, and the delay switch device is powered off.
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| CN202010946708.1A CN112054790B (en) | 2020-09-10 | 2020-09-10 | Time delay switching device, power supply system and control method of time delay switching device |
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| CN101567651A (en) * | 2008-04-25 | 2009-10-28 | 上海海马汽车研发有限公司 | Electrical safety circuit in electric automobile |
| CN104734301A (en) * | 2015-04-03 | 2015-06-24 | 徐州重型机械有限公司 | Storage battery power supply system and automatic power off control method thereof |
| CN106877490A (en) * | 2017-04-13 | 2017-06-20 | 安徽华菱汽车有限公司 | A kind of vehicle and its power supply emergency cut-off protection system |
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| JPH0698574A (en) * | 1992-09-16 | 1994-04-08 | Mitsuba Electric Mfg Co Ltd | Motor driving circuit |
| CN101567651A (en) * | 2008-04-25 | 2009-10-28 | 上海海马汽车研发有限公司 | Electrical safety circuit in electric automobile |
| CN104734301A (en) * | 2015-04-03 | 2015-06-24 | 徐州重型机械有限公司 | Storage battery power supply system and automatic power off control method thereof |
| CN106877490A (en) * | 2017-04-13 | 2017-06-20 | 安徽华菱汽车有限公司 | A kind of vehicle and its power supply emergency cut-off protection system |
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| CN112054790A (en) | 2020-12-08 |
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