CN103558429B - Switching regulator electric energy metering wiring box - Google Patents

Abstract

The invention discloses a switch-type electric energy metering junction box. Copper contact connecting pieces are arranged at the opening and closing parts of each passage, and the lower ends of the contact connecting pieces on each current passage are fixed to the lower openings of the corresponding passages through rotating shafts. It can be connected to the upper opening of the corresponding channel. The upper end of the contact piece on each voltage channel is fixed to the upper opening of the corresponding channel through the rotating shaft, and its lower end can be connected to the lower opening of the corresponding channel. The meter calibration mode switch that moves up and down the box body, and the meter change mode switch that can move up and down along the box body is provided on the right side of the box body. The invention can realize the on-off of the current loop and the voltage loop of the junction box by flipping the switch, and then complete the transition between the normal operation mode of the junction box and the on-site meter calibration and meter replacement mode, which greatly improves the work efficiency and safety reliability.

Description

Switching energy metering junction box

technical field

The invention relates to an electrical energy metering junction box.

Background technique

The traditional electrical energy metering junction box realizes the opening and crimping of the connecting piece by adjusting the screw. Firstly, this method takes a long time; secondly, there are many operation steps, which may cause operator errors on site; thirdly, the loss of connecting pieces or screws will increase the cost; fourthly, it is easy to cause crimping inaccuracy or screw drop , which in turn may cause measurement errors, or even customer equipment failures or power grid accidents.

Contents of the invention

In order to solve the above-mentioned problems existing in the prior art, the present invention provides a switch-type electric energy metering junction box, and the technical solution adopted by it is:

Including the box body, and the voltage path I, left current path I, right current path I, voltage path II, left current path II, right current path II and voltage path III arranged in the box body from left to right. There is a copper contact connecting piece at the breaking point. The lower end of the contact connecting piece on each current path is fixed to the lower opening of the corresponding path through the rotating shaft, and its upper end can be connected to the upper opening of the corresponding path. The contact connecting piece on each voltage path The upper end of the upper end is fixed to the upper opening of the corresponding path through the rotating shaft, and its lower end can be connected to the lower opening of the corresponding path. There are voltage jacks on the voltage path Ⅰ, voltage path Ⅱ and voltage path Ⅲ, and the left current path Ⅰ and the right current path There is a current jack on the II; the left side of the box body is equipped with a meter calibration mode switch that can move up and down along the box body, the lower opening of the left current path I is fixed with a gear Ⅰ through the rotating shaft, and the right side of the meter calibration mode switch The tooth edge meshes with the left side of gear Ⅰ, the contact piece on the left current path Ⅰ is fixed with the gear Ⅰ, and the upper end of the contact piece on the left current path Ⅰ is connected to the contact on the left current path Ⅱ through the insulating transmission rod Ⅰ. The upper ends of the chips are connected; the right side of the box body is provided with a table-changing mode switch that can move up and down along the box body. The upper opening of the voltage path III is fixed with a gear II through a rotating shaft. The left tooth edge of the table-changing mode switch is connected to the gear The right side of II meshes, the contact piece on voltage path III is fixed to gear II, and the lower end of the contact piece on voltage path III passes through the insulating transmission rod II and the lower end of the contact piece on voltage path I and voltage path II simultaneously Connection; the lower opening of the right current path II is fixed with a gear III through the rotating shaft, the right side of the gear III meshes with the left side of the gear II through the driven gear, and the gear III is fixed with the contact piece on the right current path II. The upper end of the contact link on the current path II is connected with the upper end of the contact link on the right current path I through the insulating transmission rod III.

In the present invention, the original continuous piece type crimping is changed to a more time-saving and safe switch type, and the current loop and voltage loop of the junction box can be turned on and off by flipping the switch, and then the normal working mode of the junction box and on-site meter calibration can be completed. And the transformation of the meter changing mode greatly improves the work efficiency and safety reliability.

Description of drawings

Fig. 1 is the structural representation when electric energy meter of the present invention works;

Fig. 2 is the structural representation when checking electric energy meter of the present invention;

Fig. 3 is a schematic diagram of the structure of the present invention when the electric energy meter is replaced.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the voltage path I2, the left current path I3, the right current path I4, the voltage path II5, the left current path II6, the right current path II7 and the voltage path III8 are sequentially arranged in the box body 1 from left to right. Copper contact connecting pieces 9 are provided at the opening and closing points of each path. The lower ends of the contact connecting pieces 9 on each current path are fixed to the lower openings of the corresponding passages through the rotating shaft 10, and the upper ends thereof can be connected to the upper openings of the corresponding passages. The upper end of the contact piece 9 on the voltage path is fixed to the upper opening of the corresponding path through the rotating shaft 10, and its lower end can be connected to the lower opening of the corresponding path. The voltage path I2, the voltage path II5 and the voltage path III8 are provided with voltage jacks 20 , the left current path I3 and the right current path II7 are provided with a current jack 21; the left side of the box body 1 is provided with a meter calibration mode switch 11 that can move up and down along the box body 1, and the lower opening of the left current path I3 passes through The rotating shaft 10 is fixed with a gear I12, the right tooth edge of the meter calibration mode switch 11 meshes with the left side of the gear I12, the contact connecting piece 9 on the left current path I3 is fixed with the gear I12, and the contact connection on the left current path I3 The upper end of piece 9 is connected to the upper end of contact connecting piece 9 on the left current path II6 through the insulating transmission rod I15; The opening is fixed with the gear II14 through the rotating shaft 10, the left tooth edge of the meter changing mode switch 13 meshes with the right side of the gear II14, the contact piece 9 on the voltage path III8 is fixed with the gear II14, and the The lower end of the contact piece 9 is simultaneously connected to the lower end of the contact piece 9 on the voltage path I2 and the voltage path II5 through the insulating transmission rod II16; the lower opening of the right current path II7 is fixed with a gear III17 through the rotating shaft 10, and the right side of the gear III17 The left side of the gear II14 is meshed with the driven gear 19, the gear III17 is fixed to the contact piece 9 on the right current path II7, and the upper end of the contact piece 9 on the right current path II7 is connected to the right current path I4 through the insulating transmission rod III18. The contact connecting piece 9 upper ends are connected.

As shown in Figure 2, when on-site calibration of the electric energy meter is required, first insert the 3 voltage plugs and 4 current plugs of the calibrator into the corresponding voltage jacks 20 and current jacks 21 respectively, and then insert the calibration meter The mode switch 11 is toggled downward, driving the gear I12 to rotate counterclockwise, and the upper end of the contact connecting piece 9 on the left current path I3 rotates to the left along the rotating shaft 10, so that the insulating transmission rod I15 drives the contact connecting piece on the left current path II6 9. The upper end rotates to the left at the same time, thereby disconnecting the two paths, realizing the series connection of the calibrator current loop and the electric energy meter.

As shown in Figure 3, when it is necessary to change the timing of the watch, first move the watch changing mode switch 13 upwards to drive the gear Ⅱ 14 to rotate clockwise, so that the lower end of the contact connecting piece 9 on the voltage path Ⅲ 8 turns to the right, and through the insulating transmission rod II16 simultaneously drives the lower end of the contact piece 9 on the voltage path I2 and the voltage path II5 to rotate to the right, thereby disconnecting the voltage loop. At the same time, under the action of the driven gear 19, the gear III17 rotates clockwise, driving the upper end of the contact connecting piece 9 on the right current path II7 to rotate to the left, and pushing the contact connecting piece 9 on the right current path I4 through the insulating transmission rod III18 The upper end of the switch is turned to the left, so that the current in and out of the circuit is short-circuited.

Claims (1)

1. A switch-type electrical energy metering junction box, including a box body (1), and a voltage path I (2), a left current path I (3), and a right current path arranged in the box body (1) from left to right. Path I (4), voltage path II (5), left current path II (6), right current path II (7) and voltage path III (8), are characterized in that copper The contact link (9), the lower end of the contact link (9) on each current path is fixed to the lower opening of the corresponding path through the rotating shaft (10), and its upper end can be connected to the upper opening of the corresponding path. The upper end of the contact piece (9) is fixed on the upper opening of the corresponding path through the rotating shaft (10), and its lower end can be connected to the lower opening of the corresponding path, voltage path I (2), voltage path II (5) and voltage path III (8) is provided with a voltage jack (20), and the left current path I (3) and the right current path II (7) are provided with a current jack (21); the left side of the box body (1) is provided with a The box body (1) is the meter calibration mode switch (11) that moves up and down, the lower opening of the left current path I (3) is fixed with the gear I (12) through the rotating shaft (10), and the right side of the meter calibration mode switch (11) is The side tooth edge meshes with the left side of the gear I (12), the contact connecting piece (9) on the left current path I (3) is fixed with the gear I (12), and the contact connecting piece (9) on the left current path I (3) The upper end of the piece (9) is connected with the upper end of the contact connecting piece (9) on the left current path II (6) through the insulating transmission rod I (15); the right side of the box body (1) is equipped with a The meter-changing mode switch (13) moves up and down, the upper opening of the voltage path III (8) is fixed with the gear II (14) through the rotating shaft (10), and the left tooth edge of the meter-changing mode switch (13) is connected with the gear II The right side of (14) meshes, the contact piece (9) on the voltage path III (8) is fixed to the gear II (14), and the lower end of the contact piece (9) on the voltage path III (8) is driven through the insulation Rod II (16) is simultaneously connected to the lower end of the contact piece (9) on voltage path I (2) and voltage path II (5); the lower opening of the right current path II (7) is fixed with a Gear III (17), the right side of gear III (17) engages the left side of gear II (14) through the driven gear (19), and the contact connecting piece ( 9) The phase is fixed, and the upper end of the contact link (9) on the right current path II (7) is connected to the upper end of the contact link (9) on the right current path I (4) through the insulating transmission rod III (18).