CN219226163U - Quick response circuit with relay - Google Patents

Abstract

Four branches are arranged between an L1 circuit and an L2 circuit; wherein: the branch circuit Z1 is provided with piezoresistors VZ1-ZNR; the branch Z2 is provided with a RELAY PY1A-RELAY-2; the branch Z3 is provided with a diode D2; the branch Z4 is provided with piezoresistors VZ2-ZNR; a diode D1 is arranged on an L1 line between the branch Z2 and the branch Z3; the RELAY PY1B-RELAY-2 is arranged on the L1 line between the branch Z3 and the branch Z4, and the RELAY PY1C-RELAY-2 is arranged on the L2 line between the branch Z3 and the branch Z4. The utility model controls the quick response of the circuit by controlling the coil current of the RELAY PY 1A-RELAY-2.

Description

Quick response circuit with relay

Technical Field

The utility model relates to the technical field of electronics, in particular to a quick response circuit with a relay.

Background

Because of the current characteristics of the relay coil, when the input end of the circuit is connected with the electric power of the motor equipment in parallel and shared, the influence of reverse voltage recharging generated by the motor equipment when the electric power of the power-in end is cut off is reduced, the power-off delay time of the circuit is shortened in time, and especially, the degree of reverse voltage generated by the motor equipment is more serious than that of the horizontal load operation due to the load gravity and the gravity of the equipment running on the upper and lower loads.

The fast response circuit is mostly used for equipment which needs to be positioned accurately for up-and-down operation after power failure, such as parking lifting equipment, overhead traveling crane up-and-down operation, or medical robot arm accurate positioning.

In the conventional fast response circuit, for example, in fig. 4, although the MOSFET (transistor) is used as a switch to reduce the influence of reverse voltage, when the fast response circuit is used for a device requiring accurate positioning of up-down operation, because the MOSFET (transistor) is a voltage control switch, the condition that the up-down load operation device is powered off in time cannot be met, and a considerable power-off delay condition still exists, so that some occasions requiring the fast response of the fast response circuit have the problem of inaccurate positioning.

In the current electronic circuits, a circuit capable of avoiding delay to realize quick response is lacking.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a quick response circuit with a relay.

The technical scheme adopted for solving the technical problems is as follows:

the quick response circuit with the relay comprises a power input Y1PIN end, a power input Y2PIN end, a power output B2PIN end and a power output B1PIN end, wherein the power input Y1PIN end and the power output B2PIN end are L1 lines, and the power input Y2PIN end and the power output B1PIN end are L2 lines; four branches are arranged between the L1 line and the L2 line; wherein:

the branch circuit Z1 is provided with piezoresistors VZ1-ZNR;

the branch Z2 is provided with a RELAY PY1A-RELAY-2;

the branch Z3 is provided with a diode D2;

the branch Z4 is provided with piezoresistors VZ2-ZNR;

a diode D1 is arranged on an L1 line between the branch Z2 and the branch Z3;

the RELAY PY1B-RELAY-2 is arranged on the L1 line between the branch Z3 and the branch Z4, and the RELAY PY1C-RELAY-2 is arranged on the L2 line between the branch Z3 and the branch Z4.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the RELAY is added and matched with the RELAY PY1B-RELAY-2 and the RELAY PY1C-RELAY-2, and the influence from the power-off reverse feedback voltage is limited by the characteristic that the RELAY is controlled by current, so that the delay condition is avoided, and the quick response of the circuit is controlled.

According to the utility model, after the relay is added in the circuit loop, the influence of external motor equipment is reduced by the characteristics of the coil in the relay, the response characteristic of the circuit is improved, and particularly, the quick response can be realized in the occasion needing timely response after power failure.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic circuit structure of the present utility model.

FIG. 2 is a schematic diagram showing the current direction when the circuit of the present utility model is turned on.

FIG. 3 is a schematic diagram of the current direction when the circuit of the present utility model is powered off.

Fig. 4 is a schematic diagram of a conventional fast response circuit.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order to provide a more thorough understanding of the present disclosure, and to fully convey the scope of the disclosure to those skilled in the art. While the drawings illustrate exemplary embodiments of the present disclosure, it should be understood that the utility model is not limited to the embodiments set forth herein.

The quick response circuit with the relay comprises a power input Y1PIN end, a power input Y2PIN end, a power output B2PIN end and a power output B1PIN end, wherein the power input Y1PIN end and the power output B2PIN end are L1 lines, and the power input Y2PIN end and the power output B1PIN end are L2 lines; four branches are arranged between the L1 line and the L2 line; wherein:

the branch circuit Z1 is provided with piezoresistors VZ1-ZNR;

the branch Z2 is provided with a RELAY PY1A-RELAY-2;

the branch Z3 is provided with a diode D2;

the branch Z4 is provided with piezoresistors VZ2-ZNR;

a diode D1 is arranged on an L1 line between the branch Z2 and the branch Z3;

the RELAY PY1B-RELAY-2 is arranged on the L1 line between the branch Z3 and the branch Z4, and the RELAY PY1C-RELAY-2 is arranged on the L2 line between the branch Z3 and the branch Z4.

When the input end of the circuit is connected with the motor equipment in parallel, the characteristic of the relay coil reduces that the circuit is influenced by reverse voltage recharging when the power of the power-in end is powered off, so that the whole circuit loop delays to be powered off.

The working principle of the quick response circuit with the relay is as follows:

when the power input at the input end of the circuit shares a power input source with other motor equipment, the current direction is shown by an arrow in fig. 2 and is a half-wave rectification loop when the power input is conducted, because the RELAY PY1A-RELAY-2 is electrified to enable the contacts PY1B-RELAY-2 to be conducted with the PY1C-RELAY-2 in a closed loop. When the power of the power-on end is interrupted, the power-off reverse feedback voltage is affected by the motor equipment using the same power-on source, so that the circuit is delayed in power-off, the power-off reaction time is prolonged, and the circuit is required to react in time, thereby causing a great problem. When the circuit loop is added into the relay, the power-off reverse feedback voltage cannot completely meet the starting of the relay coil by means of the current characteristic of the coil inside the relay, so that the influence of the power-off reverse feedback voltage is reduced, the current direction is shown as an arrow in fig. 3, and the response characteristic of the circuit is improved.

The working principle is that the RELAY is started after the circuit input end is electrified, the RELAY contact PY1B-RELAY-2 and the RELAY contact PY1C-RELAY-2 are also conducted, and the whole circuit loop is in a conducting state.

If the power-in power of the circuit input end and other motor equipment are in a common power-in source, when the power is cut off, the circuit and other motor equipment are in a parallel state, and the power-off reverse feedback voltage generated by the other motor equipment connected in parallel by the circuit is used for enabling the voltage of the circuit loop input end to still exist when the power is cut off, so that the power is not cut off immediately.

The circuit of the background of the prior art has output response no matter the power-off reverse feedback voltage, and power-off delay is caused.

The circuit of the background of the prior art uses a RELAY and is matched with the RELAY contact PY1B-RELAY-2 and the RELAY contact PY1C-RELAY-2, and the influence from the power-off reverse feedback voltage is limited by the characteristic that the RELAY is controlled by current, so that the delay condition is avoided.

The utility model controls the quick response of the circuit by controlling the coil current of the RELAY PY 1A-RELAY-2.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model are clearly and completely described above in conjunction with the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Accordingly, the above detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (1)

1. A fast response circuit with a relay, characterized by: the power supply comprises a power supply input Y1PIN end, a power supply input Y2PIN end, a power supply output B2PIN end and a power supply output B1PIN end, wherein the power supply input Y1PIN end and the power supply output B2PIN end are L1 circuits, and the power supply input Y2PIN end and the power supply output B1PIN end are L2 circuits; four branches are arranged between the L1 line and the L2 line; wherein:

the branch circuit Z1 is provided with piezoresistors VZ1-ZNR;

the branch Z2 is provided with a RELAY PY1A-RELAY-2;

the branch Z3 is provided with a diode D2;

the branch Z4 is provided with piezoresistors VZ2-ZNR;

a diode D1 is arranged on an L1 line between the branch Z2 and the branch Z3;

the RELAY PY1B-RELAY-2 is arranged on the L1 line between the branch Z3 and the branch Z4, and the RELAY PY1C-RELAY-2 is arranged on the L2 line between the branch Z3 and the branch Z4.

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