CN212161700U - Power-off delay time relay - Google Patents
Power-off delay time relay Download PDFInfo
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- CN212161700U CN212161700U CN202021015137.1U CN202021015137U CN212161700U CN 212161700 U CN212161700 U CN 212161700U CN 202021015137 U CN202021015137 U CN 202021015137U CN 212161700 U CN212161700 U CN 212161700U
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Abstract
The utility model relates to a outage time delay relay, include: a power-off delay assembly and a contactor; the power-off delay assembly comprises an energy storage circuit and a relay; the input end of the energy storage circuit is connected with a trigger power supply, and the trigger power supply is used for supplying power to the energy storage circuit so as to enable the energy storage circuit to store electric energy; the output end of the energy storage circuit is connected with the input end of the relay; the output end of the relay is respectively connected with the contactor and the load equipment; the energy storage circuit utilizes self-stored electric energy to control the relay to close the contactor, so as to supply power to the load equipment, and solve the problem of resource waste in the prior art.
Description
Technical Field
The utility model relates to a relay technical field especially relates to a outage time delay relay.
Background
A time relay: the automatic switch device realizes time delay control by utilizing an electromagnetic principle or a mechanical principle, and after an input action signal is added (or removed), an output circuit generates jump-type change (or contact action) after specified accurate time, so that load equipment is powered off (electrified). A time relay is an electrical component used in a lower voltage or lower current circuit to turn on or off a higher voltage, higher current circuit. Meanwhile, the time relay is also a control electric appliance which realizes time delay control by utilizing an electromagnetic principle or a mechanical principle. There are many kinds of them, such as air damping type, electric type, and electronic type.
The power-off delay time relay starts delay action after the working voltage of the time relay is disconnected, and the working process of the time relay is as follows: after the user closes the action command of the time relay, the time relay starts to delay, and at the moment, the contact keeps the original state; and the time delay duration of the time relay reaches the rear contact to turn over and wait for the next time delay. It can be known that the existing power-off delay time relay needs an external power supply to supply power all the time, however, in practical application, the power-off delay time relay is only utilized when the load equipment is powered off, the power-off delay time relay does not play a role in other time, and the existing power-off delay time relay needs whole-course power supply, so that resource waste is caused.
Disclosure of Invention
The utility model aims at providing a outage time delay relay solves the wasting of resources's among the prior art problem.
In order to achieve the above object, the utility model provides a following scheme:
an off-time delay relay comprising: a power-off delay assembly and a contactor; the power-off delay assembly comprises an energy storage circuit and a relay;
the input end of the energy storage circuit is connected with a trigger power supply, and the trigger power supply is used for supplying power to the energy storage circuit so as to enable the energy storage circuit to store electric energy; the output end of the energy storage circuit is connected with the input end of the relay; the output end of the relay is respectively connected with the contactor and the load equipment; the energy storage circuit controls the relay to close the contactor by utilizing the electric energy stored by the energy storage circuit, so as to supply power to the load equipment.
Optionally, the energy storage circuit includes: the circuit comprises a first diode, a second diode, a first resistor, a second resistor, a first capacitor and a second capacitor;
the anode of the first diode is connected with the trigger power supply, and the cathode of the first diode is respectively connected with one end of the first resistor and one end of the second resistor; the anode of the first capacitor is respectively connected with the other end of the first resistor and the other end of the second resistor, and the cathode of the first capacitor is grounded; the first capacitor and the second capacitor are connected in parallel; the negative electrode of the second capacitor is grounded, and the positive electrode of the second capacitor is connected with the positive electrode of the second diode; and the cathode of the second diode is connected with the input end of the relay.
Optionally, the power-off delay assembly further includes a timing circuit, and the timing circuit is connected to the trigger power supply and is configured to record power storage time of the energy storage circuit; the timing circuit is also connected with the relay and used for recording the discharge time of the energy storage circuit.
Optionally, the power-off delay time relay further includes a work indication circuit; the work indicating circuit is connected with the input end of the relay; when the relay works, a first light emitting diode in the work indicating circuit is turned on; when the relay does not work, a first light emitting diode in the work indicating circuit is turned off.
Optionally, the power-off delay component further includes: a power indication circuit; the power supply indicating circuit is connected with the trigger power supply; when the trigger power supply works, a second light-emitting diode in the power supply indicating circuit is on; when the trigger power supply does not work, the second light-emitting diode in the power supply indicating circuit is turned off.
Optionally, the power-off delay time relay further comprises a mounting plate, and the power-off delay assembly and the contactor are arranged on the mounting plate.
Optionally, the contactor is a dc contactor.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model provides a outage time delay relay, under the normal condition trigger power supply as the load equipment command that gets electric, trigger power supply switch-on makes load equipment normally work that gets electric, charge for energy storage circuit simultaneously, after the trigger power supply outage, energy storage circuit utilizes the electric energy of self storage to supply power for the relay, the relay makes the contactor closed, thereby make energy storage circuit provide the return circuit for the load equipment power supply, make outage time delay relay continue work under the condition that external power source cut off, after the time-out is long reachd, cut off the relay, the relay makes the contactor disconnection, thereby make load equipment stop work. The utility model discloses well load equipment's trigger power supply cuts off the back, and outage delay time relay utilizes the electric energy power supply of self storage, need not additionally again for the delay relay power supply before the time delay reachs, has increased delay relay's reliability, has prolonged its life to the electric energy has been practiced thrift.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a circuit diagram of a power-off delay time relay provided by the present invention;
fig. 2 is the appearance schematic diagram of the installed power-off delay time relay provided by the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a outage time delay relay solves the wasting of resources's among the prior art problem.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model provides a circuit diagram of outage delay time relay, as shown in fig. 1, the utility model relates to an outage delay time relay includes: a power-off delay assembly and a contactor; the power-off delay assembly comprises an energy storage circuit and a relay.
The input end of the energy storage circuit is connected with a trigger power supply, and the trigger power supply is used for supplying power to the energy storage circuit so as to enable the energy storage circuit to store electric energy; the output end of the energy storage circuit is connected with the input end of the relay; the output end of the relay is respectively connected with the contactor and the load equipment; the energy storage circuit controls the relay to close the contactor by utilizing the electric energy stored by the energy storage circuit, so as to supply power to the load equipment.
The tank circuit includes: the circuit comprises a first diode D1, a second diode D8, a first resistor R26, a second resistor R24, a first capacitor C8 and a second capacitor C10. The anode of the first diode D1 is connected with the trigger power supply, and the cathode of the first diode D1 is respectively connected with one end of the first resistor R26 and one end of the second resistor R24; the anode of the first capacitor C8 is respectively connected with the other end of the first resistor R26 and the other end of the second resistor R24, and the cathode of the first capacitor C8 is grounded; the first capacitor C8 and the second capacitor C10 are connected in parallel; the cathode of the second capacitor C10 is grounded, and the anode of the second capacitor C10 is connected with the anode of the second diode D8; the cathode of the second diode D8 is connected to the input of the relay.
The power-off delay assembly further comprises a timing circuit, and the timing circuit is connected with the trigger power supply and used for recording the power storage time of the energy storage circuit; the timing circuit is also connected with the relay and used for recording the discharge time of the energy storage circuit.
The power-off delay time relay also comprises a work indicating circuit; the work indicating circuit is connected with the input end of the relay; when the relay works, a first light-emitting diode P1 in the work indication circuit is on; when the relay is not operated, the first light emitting diode P1 in the operation indicating circuit is turned off.
The power-off delay assembly further comprises: a power indication circuit; the power supply indicating circuit is connected with the trigger power supply; when the trigger power supply works, a second light-emitting diode P2 in the power supply indicating circuit is on; when the trigger power supply does not work, the second light emitting diode P2 in the power supply indicating circuit is turned off.
Specifically, when load equipment's external power supply was cut off in the twinkling of an eye, trigger power supply work triggered power supply promptly and has the electricity, and trigger power supply is the energy storage circuit power supply, is provided with the electric capacity of large capacity among the energy storage circuit (first electric capacity C8 and second electric capacity C10), only needs to charge 2 seconds and can maintain circuit board self power supply about 10 seconds, need not to give the electricity in addition. Meanwhile, the trigger power supply is connected with the power supply indicating circuit, when the trigger power supply works, the trigger power supply is electrified, and a second light-emitting diode P2 in the power supply indicating circuit is lightened; when the trigger power supply is not working, namely the trigger power supply is disconnected, namely the trigger power supply is not powered, the second light emitting diode P2 in the power supply indicating circuit is turned off. The on-off of the trigger power supply is indicated by the on-off of the second light emitting diode P2, so that whether the state of the trigger power supply is abnormal or not can be found in time. Meanwhile, the trigger power supply also supplies power to the timing circuit and the relay, and the timing circuit is used for recording the power supply time of the trigger power supply.
When the trigger power supply is out of work, namely, after the power is cut off, the energy storage circuit supplies power to the relay by using the electric energy stored by the energy storage circuit, the relay continues to close the contactor, so that the energy storage circuit supplies power to the load equipment, the load equipment continues to work under the condition that the external power supply is cut off, after the electric quantity in the energy storage circuit is discharged, the load equipment stops working, and the electric quantity discharge time in the energy storage circuit is the power-off delay time of the load equipment. Meanwhile, the trigger power supply is connected with the work indicating circuit, when the relay works, the relay is electrified, and a first light emitting diode P1 in the work indicating circuit is bright; when the relay is not operated, namely the relay is not electrified, the first light emitting diode P1 in the operation indicating circuit is turned off. The working condition of the relay is indicated by the on and off of the first light emitting diode P1, and whether the state of the relay is abnormal or not can be found in time. Meanwhile, the energy storage circuit also supplies power to the timing circuit, and the timing circuit is used for recording the discharge time of the energy storage circuit.
As an optional implementation mode, outage delay time relay still includes the mounting panel, outage delay subassembly with the contactor sets up on the mounting panel, the appearance that the installation was accomplished is shown in fig. 2, wherein, whole length 124mm, wide 100mm, configuration 4 mounting holes, every mounting hole distance 40mm, diameter 5.5 mm. In the embodiment of the utility model provides an in the contactor is direct current contactor. The power-off delay time relay is composed of a direct current contactor, a power-off delay assembly and a mounting plate, and has the characteristics of compact structure, small size and the like. Meanwhile, the power-off delay assembly adopts an integrated circuit, and has the advantages of small delay error, strong anti-jamming capability and the like.
Specifically, in fig. 2, a1 is connected with the positive electrode of a storage battery (trigger power supply), A3 is connected with the negative electrode of the storage battery (trigger power supply), a2 is connected with the positive electrode switch of the storage battery, a6 is connected with the negative electrode switch of the storage battery, and a4 and a5 are connected with load equipment. When the knife switch is closed, the first light emitting diode P1 and the second light emitting diode P2 are on, the contactor is closed (A4 and A5 are conducted), and the internal energy storage circuit is charged (about 3-4 seconds). When the knife switch is switched off, the second light-emitting diode P2 is turned off, the internal energy storage circuit discharges, the first light-emitting diode P1 keeps on, the contactor keeps on attracting, after about 5 seconds, the first light-emitting diode P1 is turned off, the contactor is switched off (A4 and A5 are switched off), and the load equipment stops working.
As can be seen from fig. 1, when the trigger power supply operates, i.e., the switch B1 is powered on, the current flows through the amplifier V2 and the resistor R18, so that the amplifier V5 and the amplifier V3 are turned on. The +10V voltage is matched with the amplifier V4 through the resistor R6, so that the amplifier V5 and the amplifier V3 are conducted and maintained, the pin 8 of the programmable timing chip U1 outputs high level, the relay is electrified, the contactor is pulled in, and the load equipment continuously works. After the switch B1 is powered off and reaches the timing, the pin 8 of the programmable timing chip U1 outputs low level, so that no current flows between the ec electrodes of the amplifier V4, the conduction of the amplifier V5 and the amplifier V3 is damaged, the energy storage circuit continuously supplies power to the relay at the moment, the load equipment continues to work, and when the electric quantity in the energy storage circuit is discharged, the relay loses power, and the load equipment stops working.
The utility model discloses the advantage:
1. most of time relay is a zero voltage switch, switches on zero current department at zero voltage and turns off, has reduced current waveform \28312, then is interrupted to reduced switch transient effect, can not satisfy the time delay required precision of certain environment, the utility model discloses outage time delay relay comprises direct current contactor, outage time delay subassembly and mounting panel, and wherein, outage time delay subassembly adopts integrated circuit, and it is little to have the time delay error, advantages such as interference killing feature is strong.
2. The utility model discloses in use emitting diode as operating condition pilot lamp, can in time discover whether operating condition is unusual, improve fail safe nature.
3. The utility model discloses well trigger power supply circular telegram back, the contactor is closed, and energy storage circuit charges (about 3 ~ 4 seconds), and maximum current can reach 40 amperes, is suitable for regulator cubicle, contactor etc. the rail transit trade of being convenient for is used widely.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. An outage delay time relay, comprising: a power-off delay assembly and a contactor; the power-off delay assembly comprises an energy storage circuit and a relay;
the input end of the energy storage circuit is connected with a trigger power supply, and the trigger power supply is used for supplying power to the energy storage circuit so as to enable the energy storage circuit to store electric energy; the output end of the energy storage circuit is connected with the input end of the relay; the output end of the relay is respectively connected with the contactor and the load equipment; the energy storage circuit controls the relay to close the contactor by utilizing the electric energy stored by the energy storage circuit, so as to supply power to the load equipment.
2. The power-off delay time relay of claim 1, wherein the tank circuit comprises: the circuit comprises a first diode, a second diode, a first resistor, a second resistor, a first capacitor and a second capacitor;
the anode of the first diode is connected with the trigger power supply, and the cathode of the first diode is respectively connected with one end of the first resistor and one end of the second resistor; the anode of the first capacitor is respectively connected with the other end of the first resistor and the other end of the second resistor, and the cathode of the first capacitor is grounded; the first capacitor and the second capacitor are connected in parallel; the negative electrode of the second capacitor is grounded, and the positive electrode of the second capacitor is connected with the positive electrode of the second diode; and the cathode of the second diode is connected with the input end of the relay.
3. The power-off delay time relay according to claim 1, wherein the power-off delay assembly further comprises a timing circuit, the timing circuit is connected with the trigger power supply and is used for recording the power storage time of the energy storage circuit; the timing circuit is also connected with the relay and used for recording the discharge time of the energy storage circuit.
4. The power-off delay time relay according to claim 1, further comprising a work indication circuit; the work indicating circuit is connected with the input end of the relay; when the relay works, a first light emitting diode in the work indicating circuit is turned on; when the relay does not work, a first light emitting diode in the work indicating circuit is turned off.
5. The power down delay time relay of claim 1, wherein the power down delay assembly further comprises: a power indication circuit; the power supply indicating circuit is connected with the trigger power supply; when the trigger power supply works, a second light-emitting diode in the power supply indicating circuit is on; when the trigger power supply does not work, the second light-emitting diode in the power supply indicating circuit is turned off.
6. The power down delay time relay of claim 1, further comprising a mounting plate on which the power down delay assembly and the contactor are disposed.
7. The power down delay time relay of claim 1, wherein the contactor is a dc contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021015137.1U CN212161700U (en) | 2020-06-05 | 2020-06-05 | Power-off delay time relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021015137.1U CN212161700U (en) | 2020-06-05 | 2020-06-05 | Power-off delay time relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161700U true CN212161700U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021015137.1U Active CN212161700U (en) | 2020-06-05 | 2020-06-05 | Power-off delay time relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212161700U (en) |
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2020
- 2020-06-05 CN CN202021015137.1U patent/CN212161700U/en active Active
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