CN116773880A - Adjustable multifunctional single-phase electric energy meter connector - Google Patents

Abstract

The invention relates to an adjustable multifunctional single-phase electric energy meter connector, wherein a back plate is connected with an electric energy meter box, and the position on the back plate connected with the electric energy meter box is adjustable along the length direction of the back plate; the sliding plate is in sliding connection with the backboard and is kept relatively fixed after sliding in place, an alarm circuit board cover plate is fixedly connected to one side of the connector, the connector fixedly connected with the alarm circuit board is arranged on the sliding plate, a connector cover plate is arranged on the opposite side of the connector, a lead sealing cover plate is hinged to 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 light and a loudspeaker are respectively arranged on the alarm circuit board, the touch end of the alarm circuit board switch extends out from the connector, a connector metal connector is arranged on the connector, and an external power wire supplies power for the alarm circuit board through the connector metal connector. 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

Adjustable multifunctional single-phase electric energy meter connector

Technical Field

The invention relates to a connector for quick installation of an electric energy meter, in particular to an adjustable multifunctional single-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 adapt to electric energy meters of various specifications and meet the requirements of quick installation, continuous power-off meter replacement and safe use of the electric energy meter, the invention aims to provide an adjustable multifunctional single-phase electric energy meter connector. The single-phase electric energy meter connector can adapt to electric energy meters of various specifications through sliding adjustment of the sliding plate relative to the back plate, and can provide acousto-optic reminding and warn that meter replacement is safe in use in the process of rapidly replacing the meter without power failure.

The aim of the invention is realized by the following technical scheme:

the invention comprises a sliding plate, an alarm circuit board cover plate, an alarm circuit board, a connector cover plate, a lead sealing cover plate, a connector metal connector and a back plate, wherein the back plate is connected with an ammeter box, and the position on the back plate connected with the ammeter box is adjustable along the length direction of the back plate; the sliding plate is in sliding connection with the backboard and is kept relatively fixed after sliding in place, 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 arranged on the sliding plate, the connector cover plate is arranged on the other side opposite to the connector, the lead sealing cover plate is hinged on the connector cover plate, the alarm circuit board is accommodated in a space surrounded by the alarm circuit board cover plate and the connector, the alarm circuit board is respectively provided with an alarm circuit board switch and an alarm device, the touch end of the alarm circuit board switch extends out from the connector, connector metal connectors which are the same in number and in one-to-one correspondence with the wiring holes of the electric energy meter are arranged on the connector, and an external power wire 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 connector, 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 sliding plate is provided with a strip-shaped hole A, the back plate is correspondingly provided with a screw hole, the sliding plate and the back plate are connected through an adjusting screw inserted into the strip-shaped hole A and the screw hole, the adjusting screw is always positioned in the strip-shaped hole A in the sliding process of the sliding plate relative to the back plate, and the sliding plate is in threaded connection with the screw hole after sliding in place, so that the sliding plate and the back plate are kept fixed.

The back plate is provided with a strip-shaped hole B used for being connected with the electric meter box, a back plate screw column used for achieving a fixed supporting effect is arranged between the strip-shaped hole B and the electric meter box on the back plate, a connecting screw is inserted into the strip-shaped hole B, passes through the back plate screw column and moves in the strip-shaped hole B, and is screwed and fixed with the electric meter box after moving to be suitable for the size specification of the electric meter box.

A backboard adjusting column is arranged on one surface of the backboard, facing the ammeter box, and a telescopic column capable of moving relatively is inserted into the backboard adjusting column; the backboard adjusting column is provided with a notch which enables the backboard adjusting column to have elasticity, and the backboard adjusting column is internally provided with a latch; the telescopic column is provided with a plurality of tooth-shaped clamping grooves along the moving direction, the telescopic column extends out of the back plate adjusting column and is abutted to the ammeter box, and at the moment, the clamping teeth are spliced with the tooth-shaped clamping grooves at the corresponding positions on the telescopic column.

The slide is provided with a clamping head for sliding connection with the electric energy meter, and the slide is also provided with a connector assembly mounting bottom hole for connecting with a connector assembly and an electric energy meter mounting bottom hole for connecting with the electric energy meter respectively.

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 connector comprises a connector body and is characterized in that an alarm circuit board switch abdication groove and connector metal connector installation holes which are the same in number and correspond to the connector metal connectors one by one are formed in one side of the connector body, a touch end of the alarm circuit board switch extends out of the alarm circuit board switch abdication groove, a loudspeaker hole which corresponds to a loudspeaker in an alarm device and a power supply inlet and outlet wire through hole which corresponds to the connector metal connector installation holes in number and correspond to the loudspeaker in one by one are formed in the other side of the connector body, connector installation through holes which are used for being connected with a sliding plate, connector cover plate installation bottom holes which are used for being connected with a connector cover plate, indicator lamp holes which correspond to indicator lamps in the alarm device, uninterruptible meter changing device insertion through holes which are used for being connected with uninterruptible meter changing devices, and power supply inlet and outlet wire compression screw through holes which are used for fastening external power supply wires and connector metal connectors are the same in number and correspond to the connector metal connectors one by one.

The connector cover plate is provided with a connector cover plate mounting via hole for connecting with a connector, the connector cover plate is provided with a groove for accommodating the lead sealing cover plate, and two sides of the groove are symmetrically provided with lead sealing cover plate rotating shaft mounting holes; and lead sealing cover plate rotating shafts which are rotationally connected with the lead sealing cover plate rotating shaft mounting holes are symmetrically arranged on two sides of the lead sealing cover plate.

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 bottom hole, the top of the connector metal connector is respectively provided with a plugging hole of the uninterruptible power meter changing device which is connected with the uninterruptible power meter changing device and a power supply inlet and outlet compression screw bottom hole which is used for fastening an external power supply wire with the connector metal connector, and the bottom of the connector metal connector is provided with an alarm circuit board mounting bottom hole which is used for being connected with an alarm circuit board.

The invention has the advantages and positive effects that:

1. when the back plate is connected with the electric meter box through the brand new design, the electric meter box is quicker and more convenient, is firmer and more durable, and can adapt to the electric meter boxes with various specifications and sizes.

2. The sliding plate can slide relative to the backboard, and the alignment of the window inserting opening of the visual field of the loaded electric energy meter with the window inserting opening of the standard electric energy meter box or the non-standard electric energy meter box is ensured.

3. 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.

4. According to the invention, the electric energy meter can be quickly and accurately assembled and disassembled through the connector metal connector and the clamping head on the slide plate.

5. The invention can realize the quick replacement of the table without power failure by connecting and matching the connector metal connector with the quick uninterruptible table replacement device.

6. 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.

7. 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 a front elevational view of the structure of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

FIG. 4 is a bottom view of the structure of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 2;

FIG. 6 is a front view of the structure of the back plate of the present invention;

FIG. 7 is a front view of the structure of the skateboard of the present invention;

FIG. 8 is a front view of the structure of the cover plate of the alarm circuit board of the present invention;

FIG. 9 is a front view of the structure of the alarm circuit board of the present invention;

FIG. 10 is a top view of the alarm circuit board of the present invention;

FIG. 11 is a front view of the structure of the connector of the present invention;

FIG. 12 is a top plan view of the structure of the connector of the present invention;

FIG. 13 is a front view of the structure of the connector cover plate of the present invention;

FIG. 14 is a top plan view of a connector cover plate of the present invention;

FIG. 15 is a left side view of FIG. 14;

fig. 16 is a front view of the lead sealing cover plate of the present invention;

FIG. 17 is a front view of the structure of a metal connector of the present invention;

FIG. 18 is a top view of a metal connector of a connector according to the present invention;

FIG. 19 is a front elevational view of the telescopic column of the present invention;

FIG. 20 is a cross-sectional view of the telescopic column of the present invention;

FIG. 21 is a circuit block diagram of an alarm circuit board of the present invention;

FIG. 22 is a schematic diagram of the circuit connections of the alarm circuit board of the present invention;

wherein: 1 is a slide plate, 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 lead seal cover plate, 7 is a connector metal connector, 8 is a back plate, 9 is a strip-shaped hole A,10 is an adjusting screw, 11 is a scale ruler, 12 is a back plate adjusting column, 13 is a back plate screw column, 14 is a notch, 15 is a strip-shaped hole B,16 is a latch, 17 is a telescopic column, 18 is an adjusting hole, 19 is a screw hole, 20 is a clamping head, 21 is an electric energy meter mounting bottom hole, 22 is a connector mounting bottom hole, 23 is an alarm circuit board switch, 24 is an indicating lamp, 25 is a loudspeaker, 26 is an alarm circuit board mounting hole, 27 is a loudspeaker hole, 28 is a connector metal connector mounting hole, 29 is a power supply wire inlet and outlet through hole, 30 is a connector cover plate mounting hole, 31 is a continuous power supply meter changing device inserting through hole, 32 is a power supply wire inlet and outlet compressing screw through hole, 33 is a connector mounting through hole, 34 is an indicating lamp hole, 35 is a connector cover plate mounting through hole, 36 is a lead sealing cover plate rotating shaft mounting hole, 37 is a lead sealing cover plate rotating shaft, 38 is a power supply wire inlet and outlet bottom hole, 39 is a continuous power supply meter changing device inserting hole, 40 is a power supply wire inlet and outlet compressing screw bottom hole, 41 is an alarm circuit board mounting bottom hole, 42 is an alarm circuit board mounting screw, 43 is a wire inlet compressing screw, 44 is a tooth-shaped clamping groove, 45 is an alarm circuit board switch giving-off groove, 46 is a switch circuit, 47 is a half-wave rectifying circuit, 48 is an alternating current-direct current circuit, and 49 is a voice circuit.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 20, the invention comprises a sliding plate 1, an alarm circuit board cover plate 2, an alarm circuit board 3, a connector 4, a connector cover plate 5, a lead sealing cover plate 6, a connector metal connector 7 and a back plate 8, wherein the back plate 8 is connected with an electric meter box, and the connection position of the back plate 8 with the electric meter box is adjustable along the length direction of the back plate 8; the sliding plate 1 is in sliding connection with the back plate 8 and is kept relatively fixed after sliding in place, 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 sliding plate 1, the connector cover plate 5 is arranged on the opposite side of the connector 4, the lead sealing cover plate 6 is hinged on the connector cover plate 5, the alarm circuit board 3 is accommodated in a space surrounded by the alarm circuit board cover plate 2 and the connector 4, the alarm circuit board 3 is respectively provided with an alarm circuit board switch 23 and an alarm device, the alarm device comprises an indicator lamp 24 and a voice circuit 49, and the voice circuit 49 comprises a voice chip U2 and a loudspeaker 25. Two alarm circuit board mounting holes 26 are further formed in the alarm circuit board 3, touch ends of the alarm circuit board switches 23 extend out of the connectors 4, the connectors 4 are provided with connector metal connectors 7 which are the same in number and in one-to-one correspondence with the wiring holes of the electric energy meter, and an external power line supplies power for the alarm circuit board 3 through the connector metal connectors 7.

In order to align the window inserting opening of the loaded electric energy meter with the window inserting opening of the standard electric meter box or the non-standard electric meter box, two strip-shaped holes A9 are respectively formed in the left side and the right side of the sliding plate 1, two screw holes 19 are correspondingly formed in the left side and the right side of the back plate 8, the sliding plate 1 and the back plate 8 are inserted into the corresponding strip-shaped holes A9 and the screw holes 19 through the adjusting screws 10 to be connected, the window inserting opening of the loaded electric energy meter is aligned with the window inserting opening of the standard electric meter box or the non-standard electric meter box through the sliding plate 1, the adjusting screws 10 are always positioned in the strip-shaped holes A9 in the sliding process of the sliding plate 1 relative to the back plate 8, and are in threaded connection with the screw holes 19 after the sliding plate 1 slides in place, so that the sliding plate 1 and the back plate 8 are kept fixed; the relative positions of the viewing window of the current ammeter box and the viewing window of the ammeter can be marked and memorized through the graduated scale 11 arranged on the backboard 8, and the current ammeter can be installed according to the memorizing size of the graduated scale 11 in the next batch installation.

The backboard 8 of the embodiment is provided with two strip-shaped holes B15 used for being connected with an ammeter box, and the two strip-shaped holes B15 are arranged up and down and positioned in the middle of the backboard 8; and a backboard screw post 13 which plays a role in fixing and supporting is arranged between each bar-shaped hole B15 on the backboard 8 and the ammeter box, a connecting screw is inserted into each bar-shaped hole B15, penetrates through the backboard screw post 13 and moves in the bar-shaped hole B15, and is screwed and fixed with the ammeter box after moving to be suitable for the ammeter box size specification. Through the design of the strip-shaped hole B15, the backboard 8 can be connected with a standard single-epitope electric meter box, a standard four-epitope electric meter box, a non-standard single-epitope electric meter box and a four-epitope electric meter box. The both ends of backplate screw post 13 respectively with backplate 8 and ammeter case butt, the through-hole has been seted up to the centre of backplate screw post 13, and the through-hole can be unthreaded hole or screw hole, and the connecting screw passes bar hole 15 on the backplate 8, backplate screw post 13 in proper order, is connected with the ammeter case again. The back plate 8 of the embodiment is also provided with a graduated scale 11, after each ammeter box is adjusted in place, the corresponding graduation of the ammeter box can be recorded, and the ammeter box can be quickly positioned only by adjusting the corresponding graduation next time.

The four corners of one surface of the backboard 8 facing the ammeter box are respectively provided with a backboard adjusting column 12, the position of the backboard 8 corresponding to the backboard adjusting column 12 is provided with an adjusting hole 18, the adjusting hole 18 is communicated with the interior of the backboard adjusting column 12, and a telescopic column 17 capable of relatively moving is inserted into the backboard adjusting column 12; the length of the back plate adjusting column 12 is smaller than that of the back plate screw column 13, a notch 14 which enables the back plate adjusting column 12 to have elasticity is formed in the back plate adjusting column 12, the back plate adjusting column 12 of the embodiment is rectangular, the two wide sides of the rectangle are provided with the notch 14 along the height direction, the lower part of the back plate adjusting column 12 is divided into four parts, and the upper part in the back plate adjusting column 12 is provided with a latch 16; the telescopic column 17 is provided with a plurality of tooth-shaped clamping grooves 44 along the moving direction (namely the height direction of the telescopic column 17), the telescopic column 17 is inserted into the back plate adjusting column 12, then the back plate adjusting column 12 stretches out and abuts against the ammeter box, in the telescopic process of the telescopic column 17, the evenly distributed four parts of the back plate adjusting column 12 are pushed to expand outwards, after the telescopic column 17 stretches in place, the clamping teeth 16 are inserted into one tooth-shaped clamping groove 44 at the corresponding position on the telescopic column 17, and the evenly distributed four parts of the back plate adjusting column 12 are elastically reset to clamp the telescopic column 17.

The sliding plate 1 of the embodiment is symmetrically provided with electric energy meter installation bottom holes 21 connected with the electric energy meter on the left and right sides of the lower part, and two connector installation bottom holes 22 connected with the connector 4 are symmetrically arranged on the sliding plate 1 below the electric energy meter installation bottom holes 21; a clamping head 20 for sliding connection with the electric energy meter is arranged above the sliding plate 1.

The cover plate 2 of the alarm circuit board of the embodiment is provided with two through holes which correspond to the two connector mounting bottom holes 22 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 7 in this embodiment is four, one side of each connector metal connector 7 is plugged with a wiring hole of the electric energy meter, the other side is provided with a power supply inlet and outlet wire bottom hole 38, the top of the connector metal connector 7 is provided with an uninterruptible power meter replacing device plugging hole 39 for connecting with an uninterruptible power meter replacing device and a power supply inlet and outlet wire compression screw bottom hole 40 for fastening an external power supply wire with the connector metal connector 7, and the bottom of the connector metal connector 7 is provided with an alarm circuit board mounting bottom hole 41 for connecting with the alarm circuit board 3.

The connector 4 of this embodiment has an alarm circuit board switch giving way slot 45 and connector metal connector mounting holes 28 corresponding to the same number and one-to-one with the connector metal connectors 7, the touch end of the alarm circuit board switch 23 extends out from the alarm circuit board switch giving way slot 45, the other side of the connector 4 has a speaker hole 27 corresponding to the speaker 25 and a power supply wire inlet/outlet via hole 29 corresponding to the same number and one-to-one with the connector metal connector mounting holes 28, the top plate of the connector 4 is provided with a connector mounting via hole 33 for connecting with the slide plate 1, a connector cover mounting bottom hole 30 for connecting with the connector cover 5, an indicator lamp hole 34 corresponding to the indicator lamp 24, an uninterruptible power meter device plug-in via hole 31 for connecting with an uninterruptible power meter device and a power supply wire inlet/outlet compression screw via hole 32 for fastening an external power supply wire with the connector metal connector 7, and the uninterruptible power meter device plug-in via hole 31 and the power supply wire inlet/outlet compression screw via hole 32 are corresponding to the connector metal connectors 7 in number and one-to-one. The four connector metal connectors 7 of the present embodiment are respectively inserted into the four connector metal connector mounting holes 28, and the four wire inlet compression screws 43 are connected with the power wire inlet and outlet compression screw bottom holes 40 on the four connector metal connectors 7 through the four power wire inlet and outlet compression screw through holes 32, so as to connect the external power wire with the connector metal connectors 7. Four pins of the uninterruptible power meter-changing device are inserted through four uninterruptible power meter-changing device insertion through holes 31 on the connector 4 and then are connected with uninterruptible power meter-changing device insertion holes 39 on the four connector metal connectors 7; the uninterruptible power meter replacing device is in the prior art and is not described herein. The alarm circuit board 3 and the connector 4 are used for installing the loudspeaker 25 into the loudspeaker hole 27 through the positioning hole and the fixing clamping groove, the indicator lamp 24 is installed into the indicator lamp hole 34, and the alarm circuit board switch 23 is installed into place through the alarm circuit board switch abdication groove 45. In this embodiment, two sides of the top plate of the connector 4 are provided with the connector cover plate mounting bottom holes 30, two connector mounting through holes 33 are provided between the two sides, and the connector 4 is fixedly connected with the slide plate 1 through screws passing through the connector mounting through holes 33 and the connector mounting bottom holes 22. An indicator light hole 34 is located between the two connector mounting vias 33.

The two sides of the connector cover plate 5 of the present embodiment are symmetrically provided with connector cover plate mounting via holes 35 for connecting with the connector 4, the connector cover plate 5 between the two connector cover plate mounting via holes 35 is provided with a groove for accommodating the lead sealing cover plate 6, and the two sides of the groove are symmetrically provided with lead sealing cover plate rotating shaft mounting holes 36. The connector cover plate 5 is fixedly connected with the connector 4 through screws penetrating through the connector cover plate mounting through holes 35 and the connector cover plate mounting bottom holes 30. The lead sealing cover plate 6 of the embodiment is symmetrically provided with lead sealing cover plate rotating shafts 37 rotationally connected with lead sealing cover plate rotating shaft mounting holes 36 at two sides, and the lead sealing cover plate 6 is matched with the connector cover plate rotating shaft mounting holes 36 at two sides on the connector cover plate 5 through the lead sealing cover plate rotating shafts 37 at two sides, so that 180-degree flip rotation is realized.

As shown in fig. 21 and 22, the circuit structure diagram and the circuit connection schematic diagram of the alarm circuit board 3 of the present invention are shown. The connection relation in the figure comprises: the switching circuit 46, the half-wave rectification circuit 47, the ac-dc conversion circuit 48, and the voice circuit 49 are sequentially connected between the 220V voltage and the ground GND.

The switch circuit 46 includes an alarm circuit board switch 23 (i.e., a normally closed travel switch SW1 in the drawing) and a fuse F1 connected in sequence. When the electric energy meter is plugged into the connector metal connector 7, 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 24 and the loudspeaker 25 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 25 broadcasts prompts in a voice mode when the circuit is on and the indicator lamp 24 is on.

The half-wave rectification circuit 47 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 48 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 a voice circuit 49.

The voice circuit 49 includes a voice chip U2 and a speaker 25 (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 the +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 24) is an LED indicator light, RED or white or other colored indicator light source. The capacitor C3 is a voltage stabilizing filter capacitor. The capacitor C4 is a high-frequency filter capacitor.

In this embodiment, the four connector metal connectors 7 are respectively a live wire outlet connector lug, a live wire inlet connector lug, a zero wire outlet connector lug and a zero wire inlet connector lug, which are all connected with the ammeter. The live wire outlet connector lug and the zero wire outlet connector lug are also respectively connected with an L phase and an N phase in the circuit schematic diagram; that is, two warning circuit board mounting screws 42 connect the warning circuit board mounting base holes 41 on the live wire inlet lug and the neutral wire inlet lug through the warning circuit board mounting holes 26.

The working principle of the invention is as follows:

when the uninterrupted power meter is replaced, pins of the uninterrupted power meter replacing device are inserted through the uninterrupted power meter replacing device inserting through holes 31 on the connector 4 and then are connected with the uninterrupted power meter replacing device inserting holes 39 on the connector metal connector 7, so that uninterrupted power meter replacing is realized.

Connecting screws are inserted into two strip-shaped holes B15 on the backboard 8, backboard screw posts 13 are installed on the connecting screws, the connecting screws are screwed down after being adjusted in place in the strip-shaped holes B15 according to the ammeter box, and two ends of the backboard screw posts 13 are respectively abutted with the ammeter box and the backboard 8. And the four telescopic columns 17 are respectively inserted into the back plate adjusting columns 12 at the four corners of the back plate 8, so that the telescopic columns 17 are abutted on the electric meter box after extending out of the back plate adjusting columns 12.

The electric energy meter is in sliding connection with the clamping head 20 and the connector metal connector 7. The four connector metal connectors 7 and the wiring holes of the electric energy meter are on the same axis, the compression screw of the electric energy meter is connected with the mounting bottom hole 21 of the electric energy meter on the sliding plate 1 through the mounting hole of the electric energy meter, and the connector metal connectors 7 are compressed through the compression screw of the electric energy meter, so that the installation of the electric energy meter is realized. Sliding the slide plate 1, aligning the window inserting opening of the vision field of the loaded electric energy meter with the window inserting opening of the electric energy meter box, and screwing the adjusting screw 10.

The external power wire enters the power wire inlet and outlet bottom hole 38 on the connector metal connector 7 through the power wire inlet and outlet through hole 29 on the connector 4, and the wire inlet compression screw 43 penetrates through the power wire inlet and outlet compression screw through hole 32 on the connector 4 and then is connected with the power wire inlet and outlet compression screw bottom hole 40 on the connector metal connector 7, so that the external power wire is fastened; the external power line realizes the power supply of the alarm circuit board 3 through the connector metal connector 7 and the alarm circuit board mounting screw 42. When the electric energy meter is in place in a sliding connection mode with the clamping head 20 and the connector metal connector 7, the bottom of the electric energy meter presses the alarm circuit board switch 23 to realize voice warning broadcasting and the light closing of the indicator lamp 24. When the electric energy meter is slipped out, the bottom of the electric energy meter is separated from the alarm circuit board switch 23 to stop pressing, the alarm device sends out alarm information, namely the indicator lamp 24 is lightened and the loudspeaker 25 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 23) 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 25), 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,220VN 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 reverse recovery diode D2, 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 24, 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, the high-frequency filter capacitor C4 is used for stabilizing the voltage and filtering the voltage and then is connected to 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 (13)

1. An adjustable multifunctional single-phase electric energy meter connector which is characterized in that: the electric meter box comprises a sliding plate (1), an alarm circuit board cover plate (2), an alarm circuit board (3), a connector (4), a connector cover plate (5), a lead sealing cover plate (6), a connector metal connector (7) and a back plate (8), wherein the back plate (8) is connected with the electric meter box, and the connection position of the back plate (8) with the electric meter box is adjustable along the length direction of the back plate (8); the intelligent electric energy meter is characterized in that the sliding plate (1) is in sliding connection with the back plate (8) and is kept relatively fixed after sliding in place, an alarm circuit board cover plate (2) is fixedly connected to one side of the connector (4), the connector (4) fixedly connected with the alarm circuit board (2) is arranged on the sliding plate (1), a connector cover plate (5) is arranged on the opposite side of the connector (4), a lead sealing cover plate (6) is hinged on the connector cover plate (5), 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 (23) and an alarm device are respectively arranged on the alarm circuit board (3), the touch end of the alarm circuit board switch (23) extends out from the connector (4), connector metal connectors (7) which are the same in number with the wiring holes of the electric energy meter and correspond one to one, and an external power wire supplies power for the alarm circuit board (3) through the connector metal connectors (7); the electric energy meter touches the touch end of the alarm circuit board switch (23) when being plugged with the connector metal connector (7), 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 (23) when being pulled out, and the alarm device sends out alarm information.

2. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the sliding plate is characterized in that a strip-shaped hole A (9) is formed in the sliding plate (1), a screw hole (19) is correspondingly formed in the back plate (8), the sliding plate (1) is connected with the back plate (8) through an adjusting screw (10) inserted into the strip-shaped hole A (9) and the screw hole (19), the adjusting screw (10) is always located in the strip-shaped hole A (9) in the sliding process of the sliding plate (1) relative to the back plate (8), and the sliding plate (1) is in place and then in threaded connection with the screw hole (19), so that the sliding plate (1) and the back plate (8) are kept fixed.

3. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the utility model discloses a meter box, including backplate (8), backplate (8) are connected, set up bar hole B (15) that are used for being connected with the meter box on backplate (8), be equipped with backplate screw post (13) that play fixed bolster effect between bar hole B (15) and the meter box, the interpolation of bar hole B (15) is equipped with the connecting screw, the connecting screw passes backplate screw post (13), and move in bar hole B (15), screw up fixedly with the meter box after moving to adaptation meter box size specification.

4. The adjustable multi-function single-phase power meter connector of claim 1, wherein: a backboard adjusting column (12) is arranged on one surface of the backboard (8) facing the ammeter box, and a telescopic column (17) capable of relatively moving is inserted into the backboard adjusting column (12); the back plate adjusting column (12) is provided with a notch (14) which enables the back plate adjusting column (12) to have elasticity, and a latch (16) is arranged in the back plate adjusting column (12); the telescopic column (17) is provided with a plurality of tooth-shaped clamping grooves (44) along the moving direction, the telescopic column (17) extends out of the back plate adjusting column (12) and is abutted to the ammeter box, and at the moment, the clamping teeth (16) are inserted into the tooth-shaped clamping grooves (44) at corresponding positions on the telescopic column (17).

5. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the electric energy meter is characterized in that a clamping head (20) for sliding connection with the electric energy meter is arranged on the sliding plate (1), and a connector assembly mounting bottom hole for being connected with the connector assembly (4) and an electric energy meter mounting bottom hole for being connected with the electric energy meter are also respectively arranged on the sliding plate (1).

6. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the alarm circuit board (3) comprises an alarm circuit, wherein the alarm circuit is sequentially connected with a switch circuit (46), a half-wave rectifying circuit (47) and an alternating current-direct current circuit (48) between 220V voltage and ground GND, the alarm device comprises an indicator lamp (24) and a voice circuit (49), and the alternating current-direct current circuit (48) is further connected with the voice circuit (49).

7. The adjustable multi-function single-phase power meter connector of claim 6, wherein: the switch circuit (46) comprises an alarm circuit board switch (23) and a fusing fuse F1 which are connected in sequence.

8. The adjustable multi-function single-phase power meter connector of claim 7, wherein: the half-wave rectification circuit (47) 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.

9. The adjustable multi-function single-phase power meter connector of claim 8, wherein: the alternating current-to-direct current circuit (48) 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 (24); 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 (49).

10. The adjustable multi-function single-phase power meter connector of claim 9, wherein: the voice circuit (49) comprises a voice chip U2 and a loudspeaker (25), wherein two pins of the loudspeaker (25) 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.

11. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the utility model discloses a connector, including connector metal connector (7) and power pack, including connector (4) and connector metal connector (7) and connector metal connector mounting hole (28) that the quantity is the same, one-to-one is equipped with warning circuit board switch and gives up groove (45), the touching end of warning circuit board switch (23) is given up groove (45) and stretches out, the opposite side of connector (4) is equipped with speaker hole (27) and power pack wire inlet and outlet via hole (29) the same, the one-to-one of quantity with speaker (25) in the alarm device with connector metal connector mounting hole (28), be equipped with on the roof of connector (4) respectively and be used for the connector mounting via hole that links to each other with slide (1), be used for the connector apron mounting bottom hole that links to each other with connector apron (5), with the indicator lamp (24) in the alarm device indicate lamp hole (34), be used for the power pack wire inlet and outlet screw via hole (32) that link to each other with the uninterrupted power pack device, uninterrupted power pack device and power pack wire inlet and outlet screw via hole (31) are fastened with connector metal connector (7), uninterrupted power pack wire inlet and outlet screw via hole (32) are the same quantity is equal to one-to-outlet screw (32).

12. The adjustable multi-function single-phase power meter connector of claim 1, wherein: the connector cover plate (5) is provided with a connector cover plate mounting via hole for connecting with the connector (4), the connector cover plate (5) is provided with a groove for accommodating the lead sealing cover plate (6), and two sides of the groove are symmetrically provided with lead sealing cover plate rotating shaft mounting holes (36); lead sealing cover plate rotating shafts (37) which are rotationally connected with the lead sealing cover plate rotating shaft mounting holes (34) are symmetrically arranged on two sides of the lead sealing cover plate (6).

13. The adjustable multi-function single-phase power meter connector of claim 1, wherein: one side of the connector metal connector (7) is spliced with a wiring hole of the electric energy meter, a power supply inlet and outlet wire bottom hole (38) is formed in the other side of the connector metal connector, a plugging hole (39) of the uninterruptible power meter changing device and a power supply inlet and outlet wire compression screw bottom hole (40) for fastening an external power supply wire with the connector metal connector (7) are formed in the top of the connector metal connector (7) respectively, and an alarm circuit board mounting bottom hole (41) for connecting with an alarm circuit board (3) is formed in the bottom of the connector metal connector (7).