CN209992554U - High-efficient easy-to-maintain multi-user prepayment electric energy meter - Google Patents

Abstract

The utility model relates to a high-efficient multi-user prepayment electric energy meter easy to maintain, which comprises a copper bar, a box body, an incoming line terminal, a line outgoing terminal, a metering module, a power supply module and a display module; an incoming wire terminal is arranged on one side of the box body, an outgoing wire terminal is arranged on the adjacent side of the box body, a copper bar is arranged on the box body, the metering module comprises a printed board and magnetic latching relays fixed on the printed board, a current transformer is arranged between the adjacent magnetic latching relays, a pin at one end of each magnetic latching relay is fixed on the copper bar, a flexible wire is arranged at the other end of each magnetic latching relay, and the other end of each flexible wire is fixed on the outgoing wire terminal; the box body is further provided with a power supply module, the box body is further provided with a display module, and the display module is connected with the metering module and the power supply module through flat cables. The utility model discloses simple structure connects safe and reliable, and production efficiency is high, has improved maintenance efficiency.

Description

High-efficient easy-to-maintain multi-user prepayment electric energy meter

Technical Field

The utility model relates to an electric energy meter technical field especially relates to a high-efficient multi-user prepayment electric energy meter of easy maintenance.

Background

The structure of present centralized multi-user electric energy meter is all more complicated, like chinese patent 201520072912.X, the voltage current signal board separates with the measurement chip circuit board, and all voltage transformer, current transformer and relay are all concentrated and are installed on a circuit board, then concentrate through the connector and be connected to on the measurement chip board, the instrument that adopts this kind of scheme has following defect: (1) in terms of production structure, the layout is complex, the production process is complicated, and the production cost is increased; (2) the maintenance is not easy, if a certain component breaks down, the whole instrument must be sent back to the factory for repair, and the precision is recalibrated by using the standard source, so that the maintenance is very inconvenient and the maintenance efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned not enough, provide a high-efficient multi-user prepayment electric energy meter of easily maintaining, improve production efficiency and maintenance efficiency, reduction in production cost.

The purpose of the utility model is realized like this:

a high-efficiency and easy-to-maintain multi-user prepayment electric energy meter comprises a copper bar, a box body, an incoming line terminal, an outgoing line terminal, a metering module, a power supply module and a display module; the metering device comprises a box body, wherein one side of the box body is provided with an inlet wire terminal, one adjacent side of the box body is provided with a plurality of outlet wire terminals, the box body is provided with a plurality of copper bars which are arranged in parallel, one end of each copper bar is fixed on the inlet wire terminal, the metering module comprises a printed board, magnetic latching relays and current transformers, the magnetic latching relays and the current transformers are fixed on the printed board, the current transformers are arranged between the adjacent magnetic latching relays, pins at one ends of the magnetic latching relays are fixed on the copper bars, the other ends of the magnetic latching relays are provided with flexible wires, the other ends of the flexible wires are fixed on the outlet wire; the box body is also provided with a power supply module, the power supply module is arranged at one end close to the incoming line terminal, and the power supply module is provided with a connecting wire; the box body is also provided with a display module, and the display module is connected with the metering module and the power module through flat cables.

The utility model provides a high-efficient multi-user prepayment electric energy meter of easily maintaining, be equipped with singlechip, radio frequency card module, wireless module, LCD screen and circuit on the display module, the singlechip can calculate the electric quantity that the user used, and the radio frequency card module can realize the electricity function of buying of punching the card, and wireless module can realize wireless communication, and the LCD screen can show current voltage and current size, current power consumption and the residual capacity of each user in real time, and the circuit part can realize the infrared communication function.

The utility model provides a high-efficient multi-user prepayment electric energy meter who easily maintains, every metering module contains three magnetic latching relay.

The utility model provides a high-efficient easy multi-user prepayment electric energy meter of maintaining, be equipped with metering chip and memory chip on the metering module.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses simple structure concentrates on a metering module 1 way three-phase or 3 way single-phase user's collection and control function, utilizes purpose-made magnetic latching relay, and the circuit board trompil is handled, realizes that relay and mutual-inductor are fixed on the circuit board, connects safe and reliable, and production efficiency is high.

(2) The utility model discloses easy maintenance, if the scene breaks down, after-sales personnel only need carry according to the particular case of customer feedback in advance single module precision debug good metering module to the scene change can, improved maintenance efficiency.

(3) The utility model discloses install display module, metering module and power module concentrate within a metal box, can realize single-phase, three-phase electric parameter's measurement to have the card of punching the card and purchase electricity, wireless RS485 infrared communication and prepayment outage function.

(4) The utility model is suitable for a box of multiple model can be according to the nimble apolegamy of demand, production convenient operation.

Drawings

Fig. 1 is a schematic diagram of a principle framework of the present invention.

Fig. 2 is a schematic view of a position of a copper bar in embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of a position of a display module according to embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of embodiment 3 of the present invention.

Wherein:

the device comprises a copper bar 1, a box body 2, an incoming line terminal 3, an outgoing line terminal 31, a metering module 4, a magnetic latching relay 41, a current transformer 43, a power module 5, a connecting line 52, a display module 6, a single chip microcomputer 62, a radio frequency card module 63, a wireless module 64, a liquid crystal screen 65, a circuit 66 and a flat cable 7.

Detailed Description

Example 1:

referring to fig. 1-4, the utility model relates to a high-efficient multi-user prepayment electric energy meter of easy maintenance, it includes copper bar 1, box 2, incoming line terminal 3, leading-out terminal 31, metering module 4, power module 5 and display module 6.

2 one side of box is provided with incoming wire terminal 3, and adjacent one side is provided with three leading-out terminal 31, be provided with three parallel arrangement's copper bar 1 on the box 2, the one end of copper bar 1 is fixed on incoming wire terminal 3, metering module 4 includes the printing board and fixes magnetic latching relay 41 and current transformer 43 on the printing board, and every metering module 4 contains three magnetic latching relay 41, is equipped with current transformer 43 between the adjacent magnetic latching relay 41, the pin of magnetic latching relay 41 one end is fixed on copper bar 1, the other end of magnetic latching relay 41 is equipped with the patchcord, the other end of patchcord is fixed on leading-out terminal 31, current transformer 43 passes the patchcord after-fixing on metering module 4. 12 metering modules 4 are arranged on the box body 2.

The box body 2 is also provided with a power supply module 5, the power supply module 5 is arranged at one end close to the incoming line terminal 3, and the power supply module 5 is provided with a connecting wire 52; the box body 2 is further provided with a display module 6, and flat cables 7 are arranged between the display module 6 and the metering module 4 and between the display module 6 and the power supply module 5 to be connected.

The display module 6 is provided with a single chip microcomputer 62, a radio frequency card module 63, a wireless module 64, a liquid crystal screen 65 and a circuit 66, the single chip microcomputer 62 can calculate the electric quantity used by a user, the radio frequency card module 63 can realize the functions of swiping a card and purchasing electricity, the wireless module 64 can realize wireless communication, the liquid crystal screen 65 can display the current voltage and current size, the current electricity consumption and the residual electric quantity of each user in real time, and the circuit 66 part can realize the infrared communication function.

The working principle is as follows:

an a \ b \ c \ n three-phase incoming line is connected to an incoming line terminal 3, voltage is connected to one end of a pin of a magnetic latching relay 41 through a copper bar 1 and is connected to a power module 5 through a connecting line 52, the power module 5 converts the voltage into direct current voltage through a transformer and an LDO circuit, power is supplied to a display module 6 and a metering module 4 through a flat cable 7, and a flexible wire at the other end of the magnetic latching relay 41 on the metering module 4 is connected to an outgoing line terminal 31 to supply power to a user.

The radio frequency card module 63 on the display module 6 can realize the functions of card swiping and electricity purchasing, and the wireless module 64 can realize wireless communication. The liquid crystal screen 65 can display the current voltage and current, the current power consumption and the residual power of each user in real time, and the circuit 66 can realize the infrared communication function.

There is one metering chip on each metering module 4. When the magnetic latching relay 41 is closed and the user normally uses electricity, the magnetic latching relay 41 is connected to one end of the copper bar 1 to transmit the voltage value to the metering chip, the current transformer 43 passing through the other end of the magnetic latching relay 41 measures the current value of the user and transmits the current value to the metering chip, and the metering chip converts the voltage value measured in real time and transmits the converted current value to the single chip 62 on the display module 6 through the flat cable 7 to calculate the electricity quantity used by the user. When the residual electric quantity of a certain road user is insufficient and arrears, the singlechip 62 controls the magnetic latching relay 41 on the corresponding metering module 4 to be switched off through the flat cable 7, and the power supply of the user is cut off until the user recharges and purchases the power.

All there is a memory chip on every metering module 4 for memory module's electric parameter calibration data, a metering chip active power pulse output interface in addition, can realize the calibration of module electric energy precision alone with the cooperation of outside frock, consequently when having metering module 1 to break down at the scene, after-sale dimension personnel can directly carry the module of debugging in advance to the field replacement according to actual conditions, needn't send whole case back to the mill and reprocess, greatly improved maintenance efficiency.

Example 2:

unlike embodiment 1, two outlet terminals 31 are provided on one side of the case 2, and eight sets of metering modules 4 are provided on the case 2.

Example 3:

different from the embodiment 1, one outlet terminal 31 is arranged on one side of the box body 2, and four groups of metering modules 4 are arranged on the box body 2.

Every metering module 4 can realize 1 way three-phase or 3 way single-phase electric parameter's measurement and prepayment disconnected power transmission function, 12 metering modules 4 of mountable at most of the metering box of embodiment 1, consequently can measure 12 way three-phase or 36 way single-phase electric energy at most, and can customize the measurement loop number according to customer's demand, only need increase and decrease metering module 4 quantity and can realize. And the box body has other two shapes, the box body of the embodiment 2 can measure 8 paths of three-phase \24 paths of single-phase electric energy at most, the box body of the embodiment 3 can measure 4 paths of three-phase \12 paths of single-phase electric energy at most, the scheme can be flexibly selected and matched when customers order, and the production operation is convenient.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (4)

1. The utility model provides a high-efficient multi-user prepayment electric energy meter of easy maintenance which characterized in that: the intelligent metering box comprises a copper bar (1), a box body (2), an incoming line terminal (3), an outgoing line terminal (31), a metering module (4), a power supply module (5) and a display module (6); an incoming line terminal (3) is arranged on one side of the box body (2), a plurality of outgoing line terminals (31) are arranged on the adjacent side of the box body (2), a plurality of copper bars (1) which are arranged in parallel are arranged on the box body (2), one end of each copper bar (1) is fixed on the incoming line terminal (3), the metering module (4) comprises a printed board, a magnetic latching relay (41) and a current transformer (43), the magnetic latching relays (41) and the current transformer are fixed on the printed board, the current transformer (43) is arranged between the adjacent magnetic latching relays (41), a pin at one end of each magnetic latching relay (41) is fixed on the corresponding copper bar (1), a flexible wire is arranged at the other end of each magnetic latching relay (41), the other end of the flexible wire is fixed on the outgoing line terminal (31), and the current transformer (43; the box body (2) is also provided with a power supply module (5), the power supply module (5) is arranged at one end close to the incoming line terminal (3), and the power supply module (5) is provided with a connecting wire (52); the box body (2) is further provided with a display module (6), and flat cables (7) are arranged between the display module (6) and the metering module (4) and between the display module (6) and the power module (5) to be connected.

2. The high efficiency, easy to maintain, multi-user prepaid electric energy meter according to claim 1, wherein: be equipped with singlechip (62), radio frequency card module (63), wireless module (64), LCD screen (65) and circuit (66) on display module (6), singlechip (62) can calculate the electric quantity that the user used, radio frequency card module (63) can realize the electricity function of purchasing of punching the card, wireless communication can be realized in wireless module (64), LCD screen (65) can show each user's current voltage electric current size, current power consumption and residual capacity in real time, infrared communication function can be realized to circuit (66) part.

3. The high efficiency, easy to maintain, multi-user prepaid electric energy meter according to claim 1, wherein: each metering module (4) comprises three magnetic latching relays (41).

4. The high efficiency, easy to maintain, multi-user prepaid electric energy meter according to claim 1, wherein: and the metering module (4) is provided with a metering chip and a storage chip.

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