CN116773879A - Multifunctional three-phase electric energy meter connector - Google Patents
Multifunctional three-phase electric energy meter connector Download PDFInfo
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- CN116773879A CN116773879A CN202210230406.3A CN202210230406A CN116773879A CN 116773879 A CN116773879 A CN 116773879A CN 202210230406 A CN202210230406 A CN 202210230406A CN 116773879 A CN116773879 A CN 116773879A
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Abstract
The invention relates to a connector for quickly mounting an electric energy meter, in particular to a multifunctional three-phase electric energy meter connector, a base is connected with an electric energy meter box, one side of the connector is fixedly connected with an alarm circuit board cover plate, the connector fixedly connected with the alarm circuit board is mounted on the base, the other side opposite to the connector is provided with the connector cover plate, the alarm circuit board is accommodated in a space surrounded by the alarm circuit board cover plate and the connector, an alarm circuit board switch, an indicator lamp, a loudspeaker and a connector piece are respectively arranged on the alarm circuit board, the touch end of the alarm circuit board switch extends out of the connector, connector metal connectors which are the same in number with the wiring holes of the electric energy meter and correspond to each other one by one are mounted on the connector, the alarm circuit board is connected with the connector metal connectors through the connector pieces, and an external power wire supplies power for the alarm circuit board through the connector metal connectors. The invention can provide audible and visual reminding and warn the safe use of the meter replacement in the process of rapidly and continuously powering off the meter replacement.
Description
Technical Field
The invention relates to a connector for quickly installing an electric energy meter, in particular to a multifunctional three-phase electric energy meter connector.
Background
The electric energy meter is a necessity for people in daily work and life. The existing electric energy meter has various specifications, the electric energy meters with various specifications are different in size, and higher requirements are put forward in the aspects of quick installation, uninterrupted power supply, meter replacement and use safety.
Disclosure of Invention
In order to meet the requirements of quick installation, continuous power-off meter replacement and safe use of the electric energy meter, the invention aims to provide a multifunctional three-phase electric energy meter connector. The three-phase electric energy meter connector can provide acousto-optic reminding and warn the safety in use of meter replacement in the process of rapidly replacing the meter without power failure.
The aim of the invention is realized by the following technical scheme:
the electric meter box comprises a base, an alarm circuit board cover plate, an alarm circuit board, connectors, connector cover plates and connector metal connectors, wherein the base is connected with an electric meter box, the alarm circuit board cover plate is fixedly connected to one side of the connectors, the connectors fixedly connected with the alarm circuit board are arranged on the base, the connector cover plates are arranged on the other sides opposite to the connectors, the alarm circuit board is contained in a space surrounded by the alarm circuit board cover plate and the connectors, alarm circuit board switches, alarm devices and connector pieces are respectively arranged on the alarm circuit board, touch ends of the alarm circuit board switches extend out from the connectors, connector metal connectors which are the same in number and correspond to the wiring holes of the electric meter one by one are arranged on the connectors, the alarm circuit boards are connected with the connector metal connectors through the connector pieces, and an external power line supplies power for the alarm circuit board through the connector metal connectors; the electric energy meter touches the touch end of the alarm circuit board switch when being spliced with the connector metal head, and the alarm device is in a closed state; the electric energy meter is separated from the touch end of the alarm circuit board switch when being pulled out, and the alarm device sends out alarm information.
Wherein: the base is provided with base mounting through holes connected with standard single-meter boxes, four-meter boxes, non-standard single-meter boxes and four-meter boxes respectively, the base is also provided with connector mounting bottom holes connected with connectors and electric energy meter mounting bottom holes connected with electric energy meters, and the base is provided with clamping heads for sliding connection with the electric energy meters.
The alarm circuit board comprises an alarm circuit, wherein the alarm circuit is sequentially connected with a switch circuit, a half-wave rectifying circuit and an alternating current-direct current circuit between 220V voltage and ground wire GND, the alarm device comprises an indicator lamp and a voice circuit, and the alternating current-direct current circuit is also connected with the voice circuit.
The switch circuit comprises an alarm circuit board switch and a fuse F1 which are connected in sequence.
The half-wave rectification circuit comprises a rectification diode D1 and a capacitor C1, wherein the input end of the rectification diode D1 is connected with a fuse F1, the output end of the rectification diode D1 is connected with one end of the capacitor C1, and the other end of the capacitor C1 is connected with a ground wire GND.
The alternating current-to-direct current circuit comprises an input end Vin of an AC/DC chip U1 connected with an output end of a rectifier diode D1; the GND end of the AC/DC chip is connected with the ground wire GND through a resistor R1 and a reverse diode D2;
the output end Vout of the AC/DC chip U1 outputs +5V direct current power supply after passing through a rectifying diode D3, and the +5V direct current power supply is connected in parallel through a current limiting resistor R3 and a power inductor L1 and then is connected between the resistor R1 and a reverse diode D2; the output end Vout of the AC/DC chip U1 is connected between the resistor R1 and the reverse diode D2 through the capacitor C2; a lead is led out between the resistor R1 and the reverse diode D2 and is connected with the ground wire GND after passing through the indicator lamp; the +5V direct current power supply is grounded through a resistor R2 and grounded through a capacitor C3; the +5V DC power supply is also connected to the voice circuit.
The voice circuit comprises a voice chip U2 and a loudspeaker, wherein two pins of the loudspeaker are respectively connected with PWM1 and PWM2 pins of the voice chip U2, a VDD pin of the voice chip U2 is connected with a +5V direct current power supply, the GND pin is grounded, and a filter capacitor C4 is connected between the VDD pin and the GND pin of the voice chip U2.
The alarm circuit board switch is characterized in that an alarm circuit board switch abdication groove and a connector metal connector mounting hole are formed in one side of the connector, a touch end of the alarm circuit board switch extends out of the alarm circuit board switch abdication groove, a loudspeaker hole corresponding to a loudspeaker in the alarm device and a power supply wire inlet and outlet through hole are formed in the other side of the connector, and a connector mounting through hole used for being connected with a base, a connector cover plate mounting bottom hole used for being connected with a connector cover plate, an indication lamp hole corresponding to an indication lamp in the alarm device and a power supply wire inlet and outlet compression screw through hole used for fastening an external power supply wire and the connector metal connector are formed in a top plate of the connector.
Seven connector metal connectors are respectively a zero line connector lug, three live wire inlet connector lugs and three live wire outlet connector lugs, a connector hole A is formed in a power supply inlet and outlet compression screw through hole corresponding to the zero line connector lug, and a connector piece hole B is formed in a power supply inlet and outlet compression screw through hole corresponding to any one of the live wire inlet and outlet connector lugs; the alarm circuit board is provided with an inserting sheet A and an inserting sheet B respectively, and the inserting sheet A and the inserting sheet B are inserted into the inserting sheet hole A and the inserting sheet hole B respectively.
One side of the connector metal connector is spliced with the wiring hole of the electric energy meter, the other side of the connector metal connector is provided with a power supply inlet and outlet wire bottom hole, and the top of the connector metal connector is provided with a power supply inlet and outlet wire compression screw bottom hole for fastening an external power supply wire with the connector metal connector.
The invention has the advantages and positive effects that:
1. the invention is faster and more convenient and is stronger and more durable when the base is connected with the ammeter box through the brand new design.
2. The alarm circuit board can be contacted with the switch of the alarm circuit board when the electric energy meter is assembled and disassembled, so that accurate acousto-optic reminding warning and safe operation are realized.
3. According to the invention, the electric energy meter can be quickly and accurately assembled and disassembled through the connector metal connector and the chuck on the base.
4. The alarm circuit board is used for effectively prompting and warning when potential safety hazards appear on the surface of the binding post when the electric energy meter is moved, and can realize voice alarm of mandarin, violet nationality languages and local dialects.
5. When the ammeter box is arranged on the normally-closed travel switch SW1, the normally-closed travel switch SW1 is pressed to be disconnected so that a circuit is not enabled, when the ammeter box is moved, the normally-closed travel switch SW1 is always closed, the circuit is connected, the indicator light is on, meanwhile, the voice broadcast prompts surrounding personnel to have potential safety hazards, and unsafe electricity consumption is avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a front view of the structure of the base of the present invention;
FIG. 4 is a top view of the structure of the cover plate of the alarm circuit board of the present invention;
FIG. 5 is a schematic diagram of the structure of the alarm circuit board of the present invention;
FIG. 6A is a front view of a connector assembly of the present invention;
FIG. 6B is a top view of the connector of the present invention;
FIG. 6C is a rear view of the structure of the connector of the present invention;
FIG. 7A is a front view of a metal connector of a connector according to the present invention;
FIG. 7B is a top view of a metal connector of the present invention;
FIG. 8 is a top plan view of a connector cover plate of the present invention;
FIG. 9 is a circuit block diagram of an alarm circuit board of the present invention;
FIG. 10 is a schematic diagram of the circuit connection of the alarm circuit board of the present invention;
wherein: 1 is a base, 2 is an alarm circuit board cover plate, 3 is an alarm circuit board, 4 is a connector, 5 is a connector cover plate, 6 is a connector metal connector, 7 is a chuck, 8 is a base mounting via hole A,9 is a base mounting via hole B,10 is a base mounting via hole C,11 is an electric energy meter mounting via hole A,12 is an electric energy meter mounting via hole B,13 is a base mounting via hole D,14 is a base mounting via hole E,15 is a base mounting via hole F,16 is a connector mounting via hole A,17 is a connector mounting via hole B,19 is a speaker hole, 20 is a connector mounting via hole A,21 is a connector mounting via hole B,22 is a connector cover plate mounting via hole A,23 is a connector cover plate mounting via hole B,24 is an indication lamp hole, 25 is an alarm circuit board switch giving way groove, 26 is an alarm circuit board switch, 27 is an indication lamp, 28 is a loudspeaker, 29 is a plug-in piece A,30 is a plug-in piece B,31 is a plug-in board mounting via hole A,32 is a plug-in board mounting via hole B,33 is a plug-in piece hole A,34 is a plug-in board hole B,35 is a switch circuit, 36 is a half-wave rectifying circuit, 37 is an alternating current-direct current circuit, 38 is a voice circuit, a is a plug-in metal connector mounting hole, B is a power supply inlet and outlet line compression screw via hole, C is a power supply inlet and outlet line via hole, D is a power supply inlet and outlet line bottom hole, and E is a power supply inlet and outlet line compression screw bottom hole.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 8, the invention comprises a base 1, an alarm circuit board cover plate 2, an alarm circuit board 3, a connector 4, a connector cover plate 5 and a connector metal connector 6, wherein the base 1 is connected with an ammeter box, one side of the connector 4 is fixedly connected with the alarm circuit board cover plate 2, the connector 4 fixedly connected with the alarm circuit board 2 is arranged on the base 1, the connector cover plate 5 is arranged on the opposite side of the connector 4, the alarm circuit board 3 is accommodated in a space surrounded by the alarm circuit board cover plate 2 and the connector 4, an alarm circuit board switch 26, an alarm device and a connector piece are respectively arranged on the alarm circuit board 3, the alarm device comprises an indicator lamp 27 and a voice circuit 38, and the voice circuit 38 comprises a voice chip U2 and a loudspeaker 28. The touch end of the alarm circuit board switch 26 extends out of the connector 4, connector metal connectors 6 which are the same as the number of wiring holes of the electric energy meter and correspond to each other one by one are arranged on the connector 4, the alarm circuit board 3 is connected with the connector metal connectors 6 through the connector pieces, and an external power line supplies power for the alarm circuit board 3 through the connector metal connectors 6.
Base 1 of this embodiment has offered the base installation via hole of being connected with standard list epitope and four epitope ammeter casees, non-list epitope and four epitope ammeter casees respectively, still has offered the connector installation bottom hole that is used for being connected with connector 4 and is used for the electric energy meter installation bottom hole of being connected with the electric energy meter on the base 1, is equipped with on the base 1 and is used for the chuck 7 with the electric energy meter slip grafting. The base 1 of this embodiment is provided with a base mounting via hole A8 and a base mounting via hole F15 in the middle part, which are arranged up and down, and can be connected with standard single-meter-position and four-meter-position meter boxes by screws through the base mounting via hole A8 and the base mounting via hole F15. Base mounting via holes B9, C10, D13 and E14 are formed in four corners of the base 1, and the base can be connected with a non-standard single-meter box and a four-meter box by screws. The clamping head 7 is positioned below the base mounting via hole A8; two sides below the base mounting via hole F15 are provided with a connector mounting bottom hole A16 and a connector mounting bottom hole B17; an electric energy meter installation bottom hole A11 is formed below the base installation through hole D13, and an electric energy meter installation bottom hole B12 is formed below the base installation through hole E12.
The cover plate 2 of the alarm circuit board of the embodiment is provided with two through holes which correspond to the connector mounting bottom hole A16 and the connector mounting bottom hole B17 respectively; the bottom of the alarm circuit board cover plate 2 and the bottom of the connector 4 are subjected to ultrasonic hot melting, so that the packaging shielding of the alarm circuit board 3 is realized.
The number of the connector metal connectors 6 in the embodiment is seven, and the seven connector metal connectors 6 are a zero line connector lug, three live wire inlet connector lugs and three live wire outlet connector lugs respectively; one side of each connector metal connector 6 is spliced with a wiring hole of the electric energy meter, the other side of each connector metal connector 6 is provided with a power supply inlet and outlet wire bottom hole d, and the top of each connector metal connector 6 is provided with a power supply inlet and outlet wire compression screw bottom hole e for fastening an external power supply wire with the connector metal connector 6; two power supply inlet and outlet compression screw bottom holes e are respectively formed in the tops of the three live wire inlet connector lugs and the three live wire outlet connector lugs, and one power supply inlet and outlet bottom hole d is respectively formed in the other sides of the three live wire inlet connector lugs and the three live wire outlet connector lugs; four power supply wire inlet and outlet compression screw bottom holes e are formed in the top of the part connector lug, and two power supply wire inlet and outlet bottom holes d are formed in the other side of the part connector lug.
An alarm circuit board switch abdicating groove 25 and a connector metal connector mounting hole a are arranged on one side of the connector 4 of the embodiment, two connector metal connector mounting holes a corresponding to the zero line connector lug are arranged, one connector metal connector mounting hole a corresponding to the three live line wire inlet connector lugs and the three live line outlet connector lugs are respectively arranged, and the touch end of the alarm circuit board switch 26 extends out from the alarm circuit board switch abdicating groove 25; the other side of the connector 4 is provided with speaker holes 19 corresponding to speakers 28 and power supply inlet and outlet wire through holes c corresponding to the connector metal connector mounting holes a in number in one-to-one correspondence, the top plate of the connector 4 is respectively provided with a connector mounting through hole for connecting with the base 1, a connector cover mounting bottom hole for connecting with the connector cover 5, an indication lamp hole 24 corresponding to the indication lamp 27 and power supply inlet and outlet wire through holes b for fastening an external power supply wire with the connector metal connector 6, the two power supply inlet and outlet wire through holes b are in a group, the two power supply inlet and outlet wire through holes b corresponding to the zero wire connector are in a group, and the two power supply inlet and outlet wire through holes b corresponding to the three live wire inlet and outlet wire connectors are in a group. The seven connector metal connectors 6 of the present embodiment are respectively inserted into corresponding connector metal connector mounting holes a, and are respectively connected with a power supply wire inlet and outlet compression screw bottom hole e on the connector metal connector 6 by a wire inlet compression screw through a power supply wire inlet and outlet compression screw through hole b, so as to connect an external power supply wire with the connector metal connector 6. The alarm circuit board 3 and the connector 4 are provided with a loudspeaker 28 inside the loudspeaker hole 19 through a positioning hole and a fixing clamping groove, an indicator lamp 27 inside the indicator lamp hole 24, and an alarm circuit board switch 26 in place through an alarm circuit board switch abdicating groove 25. In this embodiment, two sides of the top plate of the connector 4 are provided with a connector cover plate mounting bottom hole a22 and a connector cover plate mounting bottom hole B23, a connector mounting via hole a20 and a connector mounting via hole B21 are provided between the two sides, and the connector 4 is fixedly connected with the base 1 by screws penetrating through the connector mounting via hole a20 and the connector mounting bottom hole a16 and screws penetrating through the connector mounting via hole B21 and the connector mounting bottom hole B17. The indicator light hole 24 is located between the connector mounting via a20 and the connector mounting via B21. A connector lug A33 is arranged in one of the power supply inlet and outlet line compression screw through holes B corresponding to the zero line connector lug, and a connector lug B34 is arranged in one of the power supply inlet and outlet line compression screw through holes B corresponding to any one of the live line inlet and outlet line connector lugs; the alarm circuit board 3 is respectively provided with an inserting sheet A29 and an inserting sheet B30, and the inserting sheet A29 and the inserting sheet B30 are respectively inserted into the inserting sheet hole A33 and the inserting sheet hole B34.
The connector cover 5 of this embodiment is provided with a connector cover mounting via hole a31 and a connector cover mounting via hole B32 for connecting with the connector 4, and the connector cover 5 is fixedly connected with the connector 4 by a screw passing through the connector cover mounting via hole a31 and the connector cover mounting bottom hole a22 and a screw passing through the connector cover mounting via hole B32 and the connector cover mounting bottom hole B23.
As shown in fig. 9 and 10, the circuit structure diagram and the circuit connection relationship diagram of the alarm circuit board 3 of the present invention are shown. The connection relation in the figure comprises: the switching circuit 35, the half-wave rectification circuit 36, the ac-dc conversion circuit 37, and the voice circuit 38 are sequentially connected between the 220V voltage and the ground GND.
The switch circuit 35 includes an alarm circuit board switch 26 (i.e., a normally closed travel switch SW1 in the figure) and a blown fuse F1 connected in sequence. When the electric energy meter is plugged into the connector metal connector 6, the electric energy meter touches the touch end of the normally-closed travel switch SW1, presses the normally-closed travel switch SW1 to be disconnected so that a circuit is not connected, and the indicator lamp 27 and the loudspeaker 28 are in a closed state; when the ammeter box is moved, the normally-closed travel switch SW1 is restored to the normally-closed state because no pressure exists on the normally-closed travel switch SW1, and the loudspeaker 28 broadcasts prompts in a voice mode when the circuit is on and the indicator lamp 27 is on.
The half-wave rectification circuit 36 includes: the input end of the rectifying diode D1 is connected with the fuse F1, the output end of the rectifying diode D1 is connected with one end of the capacitor C1, and the other end of the capacitor C1 is connected with the ground wire GND.
The ac-dc circuit 37 includes: an input end Vin of the AC/DC chip is connected with an output end of the rectifying diode D1; the GND end of the AC/DC chip is connected with the ground wire GND through a resistor R1 and a reverse diode D2; the output end Vout of the AC/DC chip outputs +5V direct current power supply after passing through a rectifying diode D3, and the +5V direct current power supply is connected between a resistor R1 and a reverse diode D2 after being connected in parallel through a current limiting resistor R3 and a power inductor L1; the output end Vout of the AC/DC chip is connected between the resistor R1 and the reverse diode D2 through the capacitor C2; a lead is led out between the resistor R1 and the reverse diode D2 and is connected with the ground wire GND after passing through the indicator lamp RED 1; the +5V direct current power supply is grounded through a resistor R2 and grounded through a capacitor C3; the +5v dc power supply is also connected to the voice circuit 38.
The voice circuit 38 includes a voice chip U2 and a speaker 28 (i.e., P3 in the figure), two pins of the speaker P3 are respectively connected to the PWM1 and PWM2 pins of the voice chip U2, the VDD pin of the voice chip U2 is connected to a +5v dc power supply, the GND pin is grounded, and a filter capacitor C4 is connected between the VDD pin and the GND pin of the voice chip U2.
The capacitor C1 is an electrolytic capacitor, the capacitor C2 is a patch capacitor, the model of the U1 chip is TT119, the model of the voice broadcasting chip U2 is NY3M016AE8, and the voice integrated storable chip can store 16 seconds or an expanded programmable control chip. The resistor R2 is a constant voltage resistor. The indicator light RED1 (i.e. indicator light 27) is an LED indicator light, RED or white or other color indicator light source. The capacitor C3 is a voltage stabilizing filter capacitor. The capacitor C4 is a high-frequency filter capacitor.
The seven connector metal connectors 6 of this embodiment are a zero line connector, three live wire inlet connectors, and three live wire outlet connectors, respectively, all connected to the electricity meter. Any live wire outlet connector lug and zero wire connector lug are also respectively connected with L phase and N phase in the circuit schematic diagram.
The working principle of the invention is as follows:
the electric energy meter is in sliding connection with the clamping head 7 and the connector metal connector 6. Seven connector metal connectors 6 are on the same axis with the wiring holes of the electric energy meter, the electric energy meter compression screw is connected with an electric energy meter installation bottom hole A11 and an electric energy meter installation bottom hole B12 on the base 1 through the electric energy meter installation holes, and the connector metal connectors 6 are compressed through the electric energy meter compression screw, so that the electric energy meter installation is realized.
The external power supply wire enters a power supply wire inlet and outlet bottom hole d on the connector metal connector 6 through a power supply wire inlet and outlet through hole c on the connector 4, and the wire inlet compression screw passes through a power supply wire inlet and outlet compression screw through hole b on the connector 4 and then is connected with a power supply wire inlet and outlet compression screw bottom hole e on the connector metal connector 6, so that the external power supply wire is fastened; the external power line realizes the power supply of the alarm circuit board 3 through the connector metal connector 6, the connector piece A29 and the connector piece B30. When the electric energy meter is in place in a sliding connection mode with the clamping head 7 and the connector metal connector 6, the bottom of the electric energy meter presses the alarm circuit board switch 26 to realize voice warning broadcasting and the light closing of the indicator lamp 27. When the electric energy meter is slipped out, the bottom of the electric energy meter is separated from the alarm circuit board switch 26 to stop pressing, the alarm device sends out alarm information, namely the indicator lamp 27 is lightened, and the loudspeaker 28 sends out voice warning broadcasting.
The working principle of the circuit is as follows:
when the AC220V is input, because the normally closed travel switch SW1 (the alarm circuit board switch 26) is long closed, the 7 pin and the 8 pin of the voice IC chip U2 output PWM signals to drive the loudspeaker P3 (the loudspeaker 28), the loudspeaker P3 starts to give out sound early warning, and because the normally closed travel switch SW1 is used for sending the AC220V to the fuse F1, when the rear end short-circuit current exceeds 500mA, the fuse F1 is blown, the AC220V forms a half-wave rectifying circuit with the electrolytic capacitor C1 through the fuse F1 to the rectifying diode D1, and then is input to the AC-DC conversion IC chip U1, when the output voltage of the AC-DC conversion IC chip U1 is sensed by the output pin Vout thereof, when the power inductance L1 reaches the design value through electrical measurement, MOS inside the AC-DC conversion IC chip U1 is turned off, the resistor R2 and the patch capacitor C2 form power consumption Rcs,220V N are regarded as reference GND, then the reference GND is connected with a GND pin of the alternating current-to-direct current IC chip U1 through the current limiting resistor R1, the Vout output of the alternating current-to-direct current IC chip U1 is connected to the rectifying diode D3 and then is 5V voltage, the 5V voltage is used for achieving the lighting of the indicator lamp RED1 through the current limiting resistor R3 to the positive electrode of the indicator lamp 27, the resistor R2 is a constant voltage resistor, the capacitor C3 is a voltage stabilizing filter capacitor, the capacitor C4 is a high-frequency filter capacitor, the voltage stabilizing filter capacitor C3 is used for stabilizing the voltage and filtering the voltage stabilizing filter capacitor C4, and then the voltage stabilizing filter capacitor C4 is connected with the 6 th pin of the voice broadcasting chip U2, at the moment, the voice broadcasting chip U2 outputs PWM signals, and the PWM drives the loudspeaker P3 to start sounding.
The main control mode is that when the electric energy meter is moved away from the meter seat, the normally closed power supply is turned on Guan Huiwei, and meanwhile, the voltage-stabilizing power supply works to supply power to the LED and the voice broadcasting chip, the LED is lightened normally, and the voice broadcasting is used as operation warning once or continuously in the meter moving away process.
Claims (10)
1. A multifunctional three-phase electric energy meter connector is characterized in that: the electric meter comprises a base (1), an alarm circuit board cover plate (2), an alarm circuit board (3), connectors (4), a connector cover plate (5) and a connector metal connector (6), wherein the base (1) is connected with an electric meter box, one side of the connector (4) is fixedly connected with the alarm circuit board cover plate (2) and fixedly connected with the connectors (4) of the alarm circuit board (2) on the base (1), the connector cover plate (5) is arranged on the opposite side of the connector (4), the alarm circuit board (3) is accommodated in a space surrounded by the alarm circuit board cover plate (2) and the connectors (4), alarm circuit board switches (26), alarm devices and connector pieces are respectively arranged on the alarm circuit board (3), touch ends of the alarm circuit board switches (26) extend out from the connectors (4), the connectors (6) which are the same in number with the wiring holes of the electric meter and correspond to each other one by one, and the alarm circuit board (3) is connected with the connectors (6) through the connector metal connector (6) in a mode, and the alarm circuit board (3) is connected with the connector metal connector (6) in an external power supply line (6); the electric energy meter touches the touch end of the alarm circuit board switch (26) when being plugged with the connector metal head (6), and the alarm device is in a closed state; the electric energy meter is separated from the touch end of the alarm circuit board switch (26) when being pulled out, and the alarm device sends out alarm information.
2. The multi-function three-phase power meter connector of claim 1, wherein: base mounting through holes connected with a standard single-meter box, a four-meter box, a non-standard single-meter box and a four-meter box are respectively formed in the base (1), a connector mounting bottom hole used for being connected with a connector (4) and an electric energy meter mounting bottom hole used for being connected with an electric energy meter are further formed in the base (1), and a clamping head (7) used for being in sliding connection with the electric energy meter is arranged on the base (1).
3. The multi-function three-phase power meter connector of claim 1, wherein: the alarm circuit board (3) comprises an alarm circuit, wherein the alarm circuit is sequentially connected between 220V voltage and ground GND through a switch circuit (35), a half-wave rectifying circuit (36) and an alternating current-direct current circuit (37), the alarm device comprises an indicator lamp (27) and a voice circuit (38), and the alternating current-direct current circuit (37) is further connected with the voice circuit (38).
4. A multi-function three-phase power meter connector as in claim 3, wherein: the switch circuit (35) comprises an alarm circuit board switch (26) and a fusing fuse F1 which are connected in sequence.
5. The multi-function three-phase power meter connector of claim 4, wherein: the half-wave rectification circuit (36) comprises a rectification diode D1 and a capacitor C1, wherein the input end of the rectification diode D1 is connected with a fuse F1, the output end of the rectification diode D1 is connected with one end of the capacitor C1, and the other end of the capacitor C1 is connected with a ground wire GND.
6. The multi-function three-phase power meter connector of claim 5, wherein: the alternating current-to-direct current circuit (37) comprises an input end Vin of an AC/DC chip U1 connected with an output end of a rectifier diode D1; the GND end of the AC/DC chip is connected with the ground wire GND through a resistor R1 and a reverse diode D2;
the output end Vout of the AC/DC chip U1 outputs +5V direct current power supply after passing through a rectifying diode D3, and the +5V direct current power supply is connected in parallel through a current limiting resistor R3 and a power inductor L1 and then is connected between the resistor R1 and a reverse diode D2; the output end Vout of the AC/DC chip U1 is connected between the resistor R1 and the reverse diode D2 through the capacitor C2; a lead is led out between the resistor R1 and the reverse diode D2 and is connected with the ground wire GND after passing through the indicator lamp (27); the +5V direct current power supply is grounded through a resistor R2 and grounded through a capacitor C3; the +5V DC power supply is also connected to a voice circuit (38).
7. The multi-function three-phase power meter connector of claim 6, wherein: the voice circuit (38) comprises a voice chip U2 and a loudspeaker (28), wherein two pins of the loudspeaker (28) are respectively connected with PWM1 and PWM2 pins of the voice chip U2, a VDD pin of the voice chip U2 is connected with a +5V direct current power supply, a GND pin is grounded, and a filter capacitor C4 is connected between the VDD pin and the GND pin of the voice chip U2.
8. The multi-function three-phase power meter connector of claim 1, wherein: one side of connector (4) is equipped with warning circuit board switch groove (25) and connector metal connector mounting hole (a) of stepping down, the touching end of warning circuit board switch (26) is by warning circuit board switch groove (25) stretches out, the opposite side of connector (4) is equipped with speaker hole (19) and wire outlet via hole (c) are advanced with power that speaker (28) correspond in the alarm device, offer respectively on the roof of connector (4) be used for with base (1) the connector installation via hole that links to each other, be used for with connector apron mounting hole that links to each other of connector apron (5), with the indicator lamp hole (24) that indicator lamp (27) correspond in the alarm device and be used for advancing wire compression screw via hole (b) with external power cord and connector metal connector (6) fastening power.
9. The multi-function three-phase power meter connector of claim 8, wherein: seven connector metal connectors (6) are respectively a zero line connector lug, three live wire inlet connector lugs and three live wire outlet connector lugs, a connector hole A (33) is arranged in a power supply inlet and outlet compression screw through hole (B) corresponding to the zero line connector lug, and a connector hole B (34) is arranged in a power supply inlet and outlet compression screw through hole (B) corresponding to any one of the live wire inlet connector lugs; the alarm circuit board (3) is respectively provided with an inserting sheet A (29) and an inserting sheet B (30), and the inserting sheet A (29) and the inserting sheet B (30) are respectively inserted into the inserting sheet hole A (33) and the inserting sheet hole B (34).
10. The multi-function three-phase power meter connector of claim 1, wherein: one side of the connector metal connector (6) is spliced with the wiring hole of the electric energy meter, the other side of the connector metal connector is provided with a power supply wire inlet and outlet bottom hole (d), and the top of the connector metal connector (6) is provided with a power supply wire inlet and outlet compression screw bottom hole (e) for fastening an external power supply wire with the connector metal connector (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230406.3A CN116773879A (en) | 2022-03-10 | 2022-03-10 | Multifunctional three-phase electric energy meter connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230406.3A CN116773879A (en) | 2022-03-10 | 2022-03-10 | Multifunctional three-phase electric energy meter connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116773879A true CN116773879A (en) | 2023-09-19 |
Family
ID=88010372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210230406.3A Pending CN116773879A (en) | 2022-03-10 | 2022-03-10 | Multifunctional three-phase electric energy meter connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116773879A (en) |
-
2022
- 2022-03-10 CN CN202210230406.3A patent/CN116773879A/en active Pending
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