阅读说明：本技术 一种4p电能表外置断路器控制线路板的取电方式 (Power taking method of control circuit board of external circuit breaker of 4P electric energy meter ) 是由 牟永江 黄国臣 王刚 王平 于 2019-01-12 设计创作，主要内容包括：一种4P电能表外置断路器控制线路板的取电方式,分两部分取电,一部分通过取电样针从断路器内部的进线侧引弧片上取电,分别取A1、A2、A3、A4,另一部分通过取电样针从断路器内部的出线端静触头连接板上取电,分别取B1、B2、B3,取电样针共有7个,第一、三、五取样针分别安装在第一、二、三极断路器进线侧引弧片的A1、A2、A3处,第二、四、六取样针分别安装在第一、二、三极断路器出线端静触头连接板的B1、B2、B3处,第七取样针安装在第四极断路器进线侧引弧片的A4处,7个取样针均延伸至预付费极断路器并焊接在其线路板上。优点是：通过从断路器进线端引弧片处和断路器出线端静触头连接板处取电,减小了断路器的长度,使断路器的长度不超过90mm。(A power-taking mode of an external circuit breaker control circuit board of a 4P electric energy meter is divided into two parts for taking power, one part takes power from an inlet wire side arc-leading sheet in a circuit breaker through a power-taking sample needle, A1, A2, A3 and A4 are respectively taken, the other part takes power from an outlet wire end static contact connecting plate in the circuit breaker through the power-taking sample needle, B1, B2 and B3 are respectively taken, the total number of the power-taking sample needles is 7, a first sampling needle, a third sampling needle and a fifth sampling needle are respectively arranged at the positions A1, A2 and A3 of the inlet wire side arc-leading sheet of a first three-pole circuit breaker, a second sampling needle, a fourth sampling needle and a sixth sampling needle are respectively arranged at the positions B1, B2 and B3 of the outlet wire end static contact connecting plate of the first three-pole circuit breaker, a seventh sampling needle is arranged at the position A4 of the inlet wire side arc-leading sheet of a fourth pole circuit breaker. The advantages are that: the length of the circuit breaker is reduced by taking electricity from the arc striking sheet at the inlet end of the circuit breaker and the fixed contact connecting plate at the outlet end of the circuit breaker, so that the length of the circuit breaker is not more than 90 mm.)

1. The utility model provides an electricity mode is got to external circuit breaker control scheme board of 4P electric energy meter which characterized in that: the invention is divided into two parts to get electricity, one part gets electricity from the inside of the circuit breaker inlet end, and respectively gets A1, A2, A3 and A4, the other part (feedback line) gets electricity from the inside of the circuit breaker outlet end, and respectively gets B1, B2 and B3, and the specific electricity getting position, the electricity getting from the circuit breaker inlet end is got from the arc sheet on the circuit breaker inlet side through the electricity getting sample pin, and the electricity getting from the circuit breaker outlet end is also got from the circuit breaker static contact connecting plate through the electricity getting sample pin.

2. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the number of the sample taking needles is 7.

3. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the first sampling needle is arranged at the A1 position of an arc striking sheet at the inlet wire side of the first pole breaker, and the second sampling needle is arranged at the B1 position of a fixed contact connecting plate at the outlet end of the first pole breaker.

4. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the third sampling needle is installed at A2 department of second utmost point circuit breaker inlet wire side run-on piece, and the fourth sampling needle is installed at the B2 department of second utmost point circuit breaker outlet terminal static contact connecting plate.

5. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the fifth sampling needle is arranged at the A3 position of an arc striking sheet at the inlet side of the third pole breaker, and the sixth sampling needle is arranged at the B3 position of a static contact connecting plate at the outlet end of the third pole breaker.

6. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the seventh sampling needle is arranged at A4 of an arc striking sheet at the inlet side of the fourth pole breaker.

7. The power taking mode of the external circuit breaker control circuit board of the 4P electric energy meter according to claim 1, characterized in that: the 7 sampling needles all extend to the prepayment pole breaker and are welded on a circuit board of the prepayment pole breaker.

Technical Field

The invention relates to an external circuit breaker of an electric energy meter, in particular to a power taking mode of a control circuit board of the external circuit breaker of a 4P electric energy meter.

Background

The external miniature automatic reclosing circuit breaker for the electric energy meter is characterized in that the length of the external miniature automatic reclosing circuit breaker is not more than 90mm according to standard regulation, the 4P circuit breaker needs to take electricity from three phases, a feedback line needs to take electricity from three phases, electricity from an incoming line and an outgoing line end of the circuit breaker can increase the length of the circuit breaker, and the length of the circuit breaker exceeds 90 mm. Therefore, the invention designs a mode of taking electricity by leading out a steel needle from the interior of the circuit breaker.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention designs a power taking mode of an external circuit breaker control circuit board of a 4P electric energy meter.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a power-taking mode of an external circuit breaker control circuit board of a 4P electric energy meter, which comprises two parts of power taking, wherein one part of the power taking is carried out from the interior of a circuit breaker wire inlet end, A1, A2, A3 and A4 respectively, the other part (a feedback line) of the power taking is carried out from the interior of a circuit breaker wire outlet end, B1, B2 and B3 respectively and specific power taking positions, the power taking of the circuit breaker wire inlet end is carried out from an arc sheet on the wire inlet side of the circuit breaker through a power-taking sample needle, the power taking of the circuit breaker wire outlet end is also carried out from a static contact of a circuit breaker connecting plate through the power-taking sample needle, the power-taking sample needles are elastic steel needles, the number of the power-taking sample needles is 7 in total, a first sampling needle is arranged at the A1 position of the arc sheet on the wire inlet side of a first pole circuit breaker, a second sampling needle is arranged at the B1 position of the static contact of the wire outlet end connecting plate of the first, the fifth sampling needle is installed in the A3 department of third pole circuit breaker inlet wire side run-on piece, and the sixth sampling needle is installed in the B3 department of third pole circuit breaker outlet terminal static contact connecting plate, and the seventh sampling needle is installed in the A4 department of fourth pole circuit breaker inlet wire side run-on piece, and above-mentioned 7 sampling needles all extend to prepayment utmost point circuit breaker and weld on the circuit board of prepayment utmost point circuit breaker.

The invention has the beneficial effects that: the length of the circuit breaker is reduced by taking electricity from the arc striking sheet at the inlet end of the circuit breaker and the fixed contact connecting plate at the outlet end of the circuit breaker, so that the length of the circuit breaker is not more than 90 mm.

Drawings

FIG. 1 is a right side schematic view of the present invention;

FIG. 2 is a left side schematic view of the present invention;

fig. 3 is a schematic diagram of the first pole circuit breaker of the present invention after opening the cover;

FIG. 4 is an isometric view of a first pole circuit breaker of the present invention;

FIG. 5 is a side view of a pre-paid pole circuit breaker of the present invention;

FIG. 6 is a schematic view of a first sampling needle according to the present invention;

FIG. 7 is a schematic view of a second sampling needle according to the present invention;

in the figure, 1, an arc striking sheet at the wire inlet side, 2, a fixed contact connecting plate at the wire outlet end, 3, a first sampling needle, 4, a second sampling needle, 5, a third sampling needle, 6, a fourth sampling needle, 7, a fifth sampling needle, 8, a sixth sampling needle, 9, a seventh sampling needle, 10, a first pole breaker, 11, a second pole breaker, 12, a third pole breaker, 13, a fourth pole breaker and 14, a prepayment pole breaker.

Detailed Description

The invention will be further described in detail by embodiments with reference to the accompanying drawings, and the invention relates to a power-taking mode of an external breaker control circuit board of a 4P electric energy meter, which comprises two parts for taking power, wherein one part takes power from the inside of a breaker wire inlet end, namely A1, A2, A3 and A4, the other part (a feedback line) takes power from the inside of a breaker wire outlet end, namely B1, B2 and B3, and specific power-taking positions, the power-taking of the breaker wire inlet end is taken from a breaker wire inlet side arc sheet 1 through a power-taking sample needle, the power-taking of the breaker wire outlet end is also taken from a breaker static contact connecting plate 2 through a power-taking sample needle, the power-taking sample needles are elastic steel needles, the total number of 7 power-taking sample needles are arranged at the A1 of the wire inlet side arc sheet 1 of a first pole breaker 10, a second sample needle 4 is arranged at the B1 of the wire outlet end connecting plate 2 of the first pole breaker 10, the third sampling needle 5 is installed in the A2 department of 11 inlet wire side run-on sheets 1 of second pole circuit breaker, the B2 department at 11 outlet terminal static contact connecting plate 2 of second pole circuit breaker is installed to fourth sampling needle 6, the A3 department at 12 inlet wire side run-on sheets 1 of third pole circuit breaker is installed to fifth sampling needle 7, the B3 department at 12 outlet terminal static contact connecting plate 2 of third pole circuit breaker is installed to sixth sampling needle 8, the A4 department at 13 inlet wire side run-on sheets 1 of fourth pole circuit breaker is installed to seventh sampling needle 9, above-mentioned 7 sampling needles all extend to prepayment pole circuit breaker 14 and weld on the circuit board of prepayment pole circuit breaker 14.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.