CN2350771Y

CN2350771Y - Inserted electric energy meter

Info

Publication number: CN2350771Y
Application number: CN 98225386
Authority: CN
Inventors: 江达; 赵玉明
Original assignee: Shanghai Hengtong Electric Co Ltd; SUZHOU POWER SUPPLY BUREAU
Current assignee: Shanghai Hengtong Electric Co Ltd; SUZHOU POWER SUPPLY BUREAU
Priority date: 1998-10-16
Filing date: 1998-10-16
Publication date: 1999-11-24
Anticipated expiration: 2008-10-16

Abstract

The utility model relates to an inserted electric energy meter, comprising a housing (10), a register (2) which is arranged in the inner cavity of the housing and a circuit board (4) arranged in the inner cavity of the housing. The utility model is characterized in that the outer side of the housing (10) bulges to form a phase line output plug (5), a zero line output plug (7), a zero line input plug (8) and a phase line input plug (9). The full-closed structure of insulated isolation ensures that a human body can not contact any of the conductive parts, which causes the operation of timekeeping of a changing meter on the spot to be carried out by one person and the type of dismounting and connecting wires on the spot to be changed into a simple inserting and pulling type to operate, which greatly enhances the work efficiency.

Description

Plug-in type electric energy table

The utility model relates to a kind of electric energy meter.

In the prior art, AC energy meter comprises shell, be arranged at register in the shell inner cavity, be arranged at the circuit board in the shell inner cavity, and the link box that comprises four binding posts is arranged on the shell, need carry out wiring at the scene and just can put into operation and measure.The type has following shortcoming: since such electric energy meter at the scene wiring just can come into operation, and environmental baseline poor, various interference in working-yard is many, so labour intensity is big, easily wrong line and cause the metering misalignment.Regulation according to " measurement Law ", the charge electric energy table belongs to the compulsory verification measuring apparatus, single-phase AC electric energy table was examined and determine once in per 5 years by turns, because " hot line job " in the lead rotation schedule genus " electric power safety rules " torn, connect at the scene open, must two people carry out wherein people monitoring simultaneously, one man operation is to guarantee personal safety, therefore this operation is time-consuming, and efficient is low, and bigger danger is arranged again.All table wiring in casees all are exposed to the outside, stealing easily, steal table.Owing to need wiring at the scene, must leave enough big operating space between the electric energy meter in the table case of place, cause supporting gauging table casing long-pending excessive, difficulty is installed in the bottom of residential building passageway.

The purpose of this utility model is to provide a kind of simple plug-in type electric energy table that is connected with ammeter box.

The technical solution of the utility model is: a kind of plug-in type electric energy table, comprise shell, be arranged at register in the shell inner cavity, be arranged at the circuit board in the shell inner cavity, the outside of described shell is protruding with phase line output plug, zero line output plug, zero line input plug, four plugs of phase line input plug, described phase line output plug and phase line input plug are electrically connected with two current sampling signal ends of circuit board respectively by shunt, and the zero line side of described zero line output plug, zero line input plug and circuit board is electrically connected.

The utility model compared with prior art has following advantage:

Because the plug on the electric energy meter adopts connected structure with the socket of showing on the case, the isolation full-closed structure of its insulation has guaranteed that human body can not touch wherein any current-carrying part, make on-the-spot rotation schedule timing, only need personnel, and the scene is disconnected line change the operation of simple plug-in into, work efficiency greatly improves.All wiring all can be arranged behind plate in the table case, and the electricity filching behavior by the reconfiguration line can't be carried out.Factory installs all case internal wirings when producing the electric energy meter batch meter, and the strictness of batch production is checked, and has guaranteed the correctness of wiring.Because plug-in type electric energy table does not need the scene to disconnect line, the original operating space of electric energy meter can be saved, and the electric energy meter casing is long-pending to be dwindled greatly thereby make, and originally the situation of electric energy meter case installation difficulty was changed greatly on the bottom of residential building passage.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a structure front elevation of the present utility model;

Accompanying drawing 2 is the A-A direction cut-open view of accompanying drawing 1;

Accompanying drawing 3 is an internal circuit connection layout of the present utility model; Wherein:

[1]. bonnet lock hole; [2]. register; [3]. the pulse plug; [4]. circuit board; [5]. the phase line output plug; [6]. shunt; [7]. the zero line output plug; [8]. the zero line input plug; [9]. the phase line input plug; [10]. shell; [11]. the current sampling signal end; [12]. the phase line end; [13]. zero line side.

Embodiment: referring to accompanying drawing 1, accompanying drawing 2, a kind of plug-in type electric energy table, comprise shell [10], be arranged at register [2] in the shell inner cavity, be arranged at the circuit board [4] in the shell inner cavity, these structures are same as the prior art.The outside of described shell [10] is protruding with phase line output plug [5], zero line output plug [7], zero line input plug [8], [9] four plugs of phase line input plug, see accompanying drawing 3, described phase line output plug [5] and phase line input plug [9] are electrically connected with two current sampling signal ends [11] of circuit board [4] respectively by shunt [6], described zero line output plug [7], zero line input plug [8] are electrically connected with the zero line side [13] of circuit board [4], and the phase line end [12] of circuit board [4] is electrically connected with shunt [6].Described phase line output plug [5], zero line output plug [7], zero line input plug [8], phase line input plug [9] are positioned at the rear portion of shell [10] and perpendicular to the outside surface of described shell [10], make the current-carrying part that does not expose behind the electric energy meter insertion table case.The outside of described shell [10] also is protruding with two pulse plugs [3], and described pulse plug [3] is electrically connected with the meter degree pulse output end of circuit board [4], and these two pulse plugs [3] are used to satisfy the needs that multiple automatic meter reading system is gathered ammeter data.

Claims

1. plug-in type electric energy table, comprise shell [10], be arranged at the register [2] in the shell inner cavity, be arranged at the circuit board [4] in the shell inner cavity, it is characterized in that: the outside of described shell [10] is protruding with phase line output plug [5], zero line output plug [7], zero line input plug [8], [9] four plugs of phase line input plug, described phase line output plug [5] and phase line input plug [9] are electrically connected described zero line output plug [7] with two current sampling signal ends [11] of circuit board [4] respectively by shunt [6], zero line input plug [8] is electrically connected with the zero line side [13] of circuit board [4].

2. plug-in type electric energy table according to claim 1 is characterized in that: described phase line output plug [5], zero line output plug [7], zero line input plug [8], phase line input plug [9] are positioned at the rear portion of shell [10] and perpendicular to the outside surface of described shell [10].

3. plug-in type electric energy table according to claim 1 is characterized in that: the outside of described shell [10] also is protruding with two pulse plugs [3], and described pulse plug [3] is electrically connected with the meter degree pulse output end of circuit board [4].