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CN-122017311-A - Ammeter with electric leakage prompt facility

CN122017311ACN 122017311 ACN122017311 ACN 122017311ACN-122017311-A

Abstract

The invention discloses an ammeter with an electric leakage prompt function, and relates to the technical field of ammeter, comprising an ammeter body, wherein an inlet wire terminal and an outlet wire terminal are respectively arranged at the upper end and the lower end of the ammeter body and are used for connecting a zero wire and a live wire, a display screen is arranged at the upper part of the front surface of the ammeter body, an electric leakage detection groove is arranged at the lower part of the front surface of the ammeter body, and an annular detection coil, a circuit board, a suction coil, an electric leakage prompt circuit and four connecting terminals of the two zero wires and the two live wires are arranged in the electric leakage detection groove. According to the invention, the electric leakage detection coil, the attraction coil, the driving mechanism and the electric leakage prompting circuit are arranged in the ammeter, when the annular detection coil detects that electric leakage occurs, the electric current is generated to enable the circuit in the circuit board to be connected, the attraction coil can be controlled to work, the attraction coil is controlled to enable the circuit to be disconnected through the driving mechanism, and meanwhile, the electric leakage prompting circuit is controlled to be connected, so that the prompting lamp is lightened, and therefore, the electric leakage condition can be found in time, the circuit is cut off, and the prompting signal is sent.

Inventors

  • BAI HAO
  • WANG QIANG
  • Lv Ningke
  • Tan Wendong

Assignees

  • 昀诺能源科技(江苏)有限公司

Dates

Publication Date
20260512
Application Date
20260415

Claims (8)

  1. 1. The utility model provides an ammeter with electric leakage prompt facility, includes ammeter body (1), upper end and lower extreme of ammeter body (1) are equipped with incoming wire terminal (3) and outgoing line terminal (5) respectively for connect zero line and live wire, its characterized in that: The electric meter comprises an electric meter body (1), wherein a display screen (2) is arranged at the upper part of the front surface of the electric meter body, an electric leakage detection groove (7) is arranged at the lower part of the electric meter body, an annular detection coil (9), a circuit board (8), an attraction coil (10), an electric leakage prompt circuit and four connecting terminals (11) of a zero line and a fire line are arranged in the electric leakage detection groove (7), the two terminals of the zero line and the two terminals of the fire line are connected through a lap joint metal piece (13) so as to conduct a circuit, the annular detection coil (9) is sleeved on the outer sides of the zero line and the fire line, two leads on the annular detection coil (9) are connected to the circuit board (8), the attraction coil (10) is arranged in the electric leakage detection groove (7), and the two leads of the attraction coil (10) are also connected to the circuit board (8); the electric leakage prompting circuit comprises a prompting circuit power supply (15), prompting circuit terminals (16) and prompting lamps (6), wherein the positive electrode and the negative electrode of the prompting circuit power supply (15) are respectively connected with the two prompting circuit terminals (16) through wires, and the prompting lamps (6) are arranged outside the ammeter body (1) and are connected with an electric leakage prompting circuit; The movable end of the attraction coil (10) is provided with a driving mechanism (12), and the driving mechanism (12) is used for driving the lap joint metal piece (13) to leave the connecting terminal (11) and approach the two prompting line terminals (16) so as to enable the electric leakage prompting circuit to be connected.
  2. 2. The ammeter with the electric leakage prompt function according to claim 1, wherein the driving mechanism (12) comprises a connector (121), a driving rod (122), a connecting rod (126) and a push rod (127), wherein the driving rod (122) is vertically arranged and is limited at the bottom of the electric leakage detection groove (7) through a first fixing seat (123), one end of the driving rod (122) is fixedly connected with the connector (121), the connector (121) is connected with the movable end of the attraction coil (10), the other end of the driving rod (122) is rotatably connected with one end of the connecting rod (126), the other end of the connecting rod (126) is rotatably connected with one end of the push rod (127), and the push rod (127) is transversely arranged and is limited at the bottom of the electric leakage detection groove (7) through a second fixing seat (128); The outside of actuating lever (122) still is equipped with baffle (125), and the outside of actuating lever (122) is located between baffle (125) and first fixing base (123) and is equipped with first spring (124).
  3. 3. The ammeter with the electric leakage prompt function according to claim 2, wherein a moving mechanism (14) is further arranged below the lap joint metal piece (13), the moving mechanism (14) comprises two sliding rails (141), two sliding blocks (142) and a connecting plate (143), the sliding rails (141) are symmetrically arranged at the bottom of the electric leakage detection groove (7), the sliding blocks (142) are slidably arranged on each sliding rail (141), the two sliding blocks (142) are fixedly connected through the connecting plate (143), the middle part of the lap joint metal piece (13) is clamped at the upper ends of the two sliding blocks (142), and when the ejector rod (127) moves rightwards, the ejector rod can push against the connecting plate (143) to enable the whole moving mechanism (14) to move rightwards, so that the lap joint metal piece (13) is driven to move rightwards.
  4. 4. An electricity meter with a leakage prompt function according to claim 3, wherein the upper end of the slider (142) is in a U shape, and the lap joint metal piece (13) is clamped in the U-shaped inner cavity of the slider (142).
  5. 5. An electricity meter with leakage indicating function according to claim 3, wherein the slider (142), the slide rail (141) and the connection plate (143) are made of insulating materials.
  6. 6. The electricity meter with the electricity leakage prompting function according to any one of claims 1 to 5, wherein a switch assembly (17) is arranged on one side surface of the electricity meter body (1), the switch assembly (17) comprises a shell (171), a switch button (172), a recovery rod (173) and a second spring (174), the shell (171) is connected to the side wall of the electricity meter body (1) in a penetrating mode, a cavity is formed in the shell (171), the switch button (172) is slidably arranged in the cavity of the shell (171), the recovery rod (173) is fixedly connected to the inner end of the switch button (172), the other end of the recovery rod (173) is slidably arranged through the bottom of the shell (171) to extend into the electricity leakage detection groove (7), and the second spring (174) is located in the cavity of the shell (171) and sleeved on the recovery rod (173).
  7. 7. The electric meter with the electric leakage prompting function according to claim 6, wherein an elastic snap ring (175) is arranged on the outer side wall of the inner end of the recovery rod (173), a first limit groove (176) and a second limit groove (177) are sequentially arranged on the inner wall of the casing (171), and the first limit groove (176) and the second limit groove (177) are annular.
  8. 8. The electric meter with the electric leakage prompt function according to claim 1, wherein the contact ends of the connection terminal (11) and the prompt line terminal (16) are respectively provided with two elastic contact pieces, and both side ends of the contact pieces are arc-shaped and tilt up or down.

Description

Ammeter with electric leakage prompt facility Technical Field The invention belongs to the technical field of electric meters, and particularly relates to an electric meter with an electric leakage prompt function. Background In modern power usage, safe use of electricity is critical. As a key device for metering and monitoring electric power, the conventional electric meter mainly focuses on the metering function of electric energy, and lacks effective detection and prompt means for possible leakage problems in a circuit. When the electric leakage occurs in the circuit, if the electric leakage cannot be found and treated in time, electric shock accidents can be possibly caused, serious threat is caused to personal safety, meanwhile, electric equipment can be possibly damaged, even fire disaster is caused, and huge property loss and potential safety hazard are brought to families and society. Through retrieving, chinese patent CN 114113721B discloses a smart electric meter with electric leakage prompt facility, including the ammeter casing, the preceding terminal surface fixed mounting of ammeter casing has the status display dish, ammeter groove has been seted up to the inside of ammeter casing, the inside fixed mounting of ammeter groove has the ammeter main part, monitoring groove has still been seted up to the inside of ammeter groove, monitoring inslot portion fixedly connected with monitoring solenoid, monitoring solenoid is linked together with monitoring inslot wall both ends, the inside still rotation of ammeter groove is connected with status probe, status probe is located monitoring solenoid's one end, status probe drive is connected with status indication dish, status indication dish and status display dish looks adaptation, when the inside electric leakage of ammeter inslot portion takes place, the inner wall both ends of monitoring groove produce electric current, and then electric current circulates in monitoring solenoid's inside, produces corresponding electromagnetic field through monitoring solenoid, electromagnetic field drive status probe deflects to drive status indication dish rotates and shows corresponding state. The intelligent ammeter can only give a prompt for the electric leakage existing in the ammeter, can not give a prompt signal for the electric leakage existing in an external electricity utilization circuit, and can not improve the electricity utilization safety of a user. Therefore, we propose an ammeter with leakage prompt function. Disclosure of Invention The invention aims to provide an ammeter with a leakage prompt function, aiming at the problem that the existing ammeter cannot prompt the leakage in an electricity utilization circuit and cut off the electricity utilization circuit in time. The electric meter with the electric leakage prompt function comprises an electric meter body, wherein an inlet wire terminal and an outlet wire terminal are respectively arranged at the upper end and the lower end of the electric meter body and are used for connecting a zero line and a live line; The electric meter comprises an electric meter body, wherein the front upper part of the electric meter body is provided with a display screen, the lower part of the electric meter body is provided with an electric leakage detection groove, an annular detection coil, a circuit board, an absorption coil, an electric leakage prompt circuit and four connecting terminals of two zero wires and a live wire are arranged in the electric leakage detection groove, and the two terminals of the zero wires and the two terminals of the live wire are connected through lap joint metal pieces so as to conduct a circuit; The electric leakage prompting circuit comprises a prompting circuit power supply, prompting circuit terminals and prompting lamps, wherein the anode and the cathode of the prompting circuit power supply are respectively connected with the two prompting circuit terminals through wires, and the prompting lamps are arranged outside the ammeter body and are connected with an electric leakage prompting circuit; The movable end of the attraction coil is provided with a driving mechanism, and the driving mechanism is used for driving the lap joint metal piece to leave the connecting terminal and approach the two prompting line terminals so as to enable the electric leakage prompting circuit to be connected. When the live wire is connected with alternating current, the circuit can generate a continuously changing magnetic field, the continuously changing magnetic field can also generate a magnetic field in the closed magnetic ring, the annular detection coil can generate alternating current, when no leakage occurs, the current of the zero line and the current of the live wire are equal and opposite, so that the generated magnetic fields are equal in size and opposite, the magnetic fields in the annular detection coil can cancel each other, the magnetic field does not exist, the annular detection c