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CN-224217435-U - Relay control circuit, intelligent ammeter and relay device

CN224217435UCN 224217435 UCN224217435 UCN 224217435UCN-224217435-U

Abstract

The utility model relates to the field of driver driving design, in particular to a relay control circuit, an intelligent ammeter and relay equipment, wherein the relay control circuit comprises: the control module is used for controlling the magnetic latching relay group according to the driving chip, wherein the magnetic latching relay group comprises a single-coil magnetic latching relay and a double-coil magnetic latching relay. According to the utility model, the switching use of the single-coil magnetic latching relay and the double-coil magnetic latching relay is realized through the control module, the multi-scene application of the relay control circuit is realized, the labor cost is reduced, and the resource consumption is reduced.

Inventors

  • JING CHAO
  • ZHANG XINYUAN

Assignees

  • 杭州明特科技有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (8)

  1. 1. A relay control circuit is characterized by comprising a driving chip, a magnetic latching relay group and a control module, The control module is respectively connected with the driving chip and the magnetic latching relay group, and is used for controlling the magnetic latching relay group according to the driving chip, wherein the magnetic latching relay group comprises a single-coil magnetic latching relay and a double-coil magnetic latching relay.
  2. 2. The relay control circuit of claim 1, wherein the control module comprises a first diode, a second diode, a third diode, a fourth diode, and a double pole double throw switch, The positive electrode of the first diode is connected with the double-coil magnetic latching relay, and the negative electrode of the first diode is connected with the first pin of the driving chip; the positive electrode of the second diode is connected with the second end of the double-pole double-throw switch, and the negative electrode of the second diode is respectively connected with the third end of the double-pole double-throw switch, the single-coil magnetic latching relay and the double-coil magnetic latching relay; The positive electrode of the third diode is connected with the sixth end of the double-pole double-throw switch, and the negative electrode of the third diode is respectively connected with the single-coil magnetic latching relay and the double-coil magnetic latching relay; the positive electrode of the fourth diode is respectively connected with the fifth end of the double-pole double-throw switch, the single-coil magnetic latching relay and the double-coil magnetic latching relay, and the negative electrode of the fourth diode is connected with the fourth pin of the driving chip; The first end of the double-pole double-throw switch is connected with the first pin of the driving chip, and the fourth end of the double-pole double-throw switch is connected with the fourth pin of the driving chip.
  3. 3. The relay control circuit of claim 2, further comprising a first resistor and a capacitor, wherein the capacitor is connected in parallel across the first resistor, one end of the first resistor is connected to a first pin of the driver chip, and the other end of the first resistor is connected to a fourth pin of the driver chip.
  4. 4. The relay control circuit of claim 2, wherein the first diode, the second diode, the third diode, and the fourth diode are any one of a schottky diode, a fast recovery diode, a rectifier diode, and a transient voltage suppression diode.
  5. 5. The relay control circuit according to claim 1, further comprising a second resistor and a third resistor, wherein one end of the second resistor is connected to a seventh pin of the driving chip, the other end of the second resistor is input to the first power supply, one end of the third resistor is connected to a sixth pin of the driving chip, and the other end of the third resistor is connected to the second power supply.
  6. 6. The relay control circuit of claim 1, wherein the driver chip is CN8031SHR.
  7. 7. A smart meter comprising the relay control circuit of any one of claims 1 to 6.
  8. 8. A relay device, characterized in that the device comprises the relay control circuit according to any one of claims 1 to 6.

Description

Relay control circuit, intelligent ammeter and relay device Technical Field The utility model relates to the field of driver driving design, in particular to a relay control circuit, an intelligent ammeter and relay equipment. Background At present, a common relay control circuit is only suitable for driving a single-coil magnetic latching driving circuit, and the single-coil magnetic latching driving circuit is only suitable for being used in a low-frequency signal environment. For the fields of high-frequency signal control and the like, it is necessary to replace the single-coil magnetic latching driver with the double-coil magnetic latching driver, but the labor cost, the time cost and the resource consumption are increased. Therefore, a driver circuit suitable for multi-scene applications is needed by those skilled in the art. Disclosure of utility model The utility model aims to provide a relay control circuit, an intelligent ammeter and relay equipment, wherein the control circuit realizes the switching use of a single-coil magnetic latching relay and a double-coil magnetic latching relay, and the multi-scene application of the relay control circuit is increased. In a first aspect of the embodiment of the application, a relay control circuit is provided, the circuit comprises a driving chip, a magnetic latching relay group and a control module, The control module is respectively connected with the driving chip and the magnetic latching relay group, and is used for controlling the magnetic latching relay group according to the driving chip, wherein the magnetic latching relay group comprises a single-coil magnetic latching relay and a double-coil magnetic latching relay. In one embodiment, the control module includes a first diode, a second diode, a third diode, a fourth diode, and a double pole double throw switch, The positive electrode of the first diode is connected with the double-coil magnetic latching relay, and the negative electrode of the first diode is connected with the first pin of the driving chip; the positive electrode of the second diode is connected with the second end of the double-pole double-throw switch, and the negative electrode of the second diode is respectively connected with the third end of the double-pole double-throw switch, the single-coil magnetic latching relay and the double-coil magnetic latching relay; The positive electrode of the third diode is connected with the sixth end of the double-pole double-throw switch, and the negative electrode of the third diode is respectively connected with the single-coil magnetic latching relay and the double-coil magnetic latching relay; the positive electrode of the fourth diode is respectively connected with the fifth end of the double-pole double-throw switch, the single-coil magnetic latching relay and the double-coil magnetic latching relay, and the negative electrode of the fourth diode is connected with the fourth pin of the driving chip; The first end of the double-pole double-throw switch is connected with the first pin of the driving chip, and the fourth end of the double-pole double-throw switch is connected with the fourth pin of the driving chip. In one embodiment, the circuit further includes a first resistor and a capacitor, the capacitor is connected in parallel to two ends of the first resistor, one end of the first resistor is connected to a first pin of the driving chip, and the other end of the first resistor is connected to a fourth pin of the driving chip. In one embodiment, the first diode, the second diode, the third diode, and the fourth diode are any one of schottky diodes, fast recovery diodes, rectifier diodes, and transient voltage suppression diodes. In one embodiment, the circuit further includes a second resistor and a third resistor, one end of the second resistor is connected to the seventh pin of the driving chip, the other end of the second resistor is input to the first power supply, one end of the third resistor is connected to the sixth pin of the driving chip, and the other end of the third resistor is connected to the second power supply. In one embodiment, the driver chip is CN8031SHR. According to a second aspect of the embodiment of the application, a smart meter comprises the relay control circuit. According to a third aspect of embodiments of the present application, a relay device includes a relay control circuit provided above. The relay control circuit has the beneficial effects that the switching use of the single-coil magnetic latching relay and the double-coil magnetic latching relay is realized through the control module, the multi-scene application of the relay control circuit is realized, the labor cost is reduced, and the resource consumption is reduced. Drawings Fig. 1 is a schematic diagram of a relay driving circuit in the related art; fig. 2 is a block diagram of a relay control circuit according to an exemplary embodiment of the present application; fig. 3 is a schemati