Electric energy detection device of low-voltage power distribution cabinet

Abstract

The utility model discloses an electric energy detection device of a low-voltage power distribution cabinet. The electric energy detection device comprises a main body, a connection clamping lock and a display panel, the main body is provided with a primary side contact and a secondary side contact, and the primary side contact is electrically connected with the secondary side contact; a voltage detector and a current transformer are arranged in the main body; a signal transmission contact is arranged in the middle of the front vertical surface of the body; the display panel comprises a screen, operation keys and a signal transmission contact piece; the screen and the operation keys are arranged at the front end of the display panel; the signal transmission contact is arranged in the middle of the rear end of the display panel; the front end of the body and the rear end of the display panel are magnetically attracted. The signal transmission contact piece and the signal transmission contact are butted; the screen displays voltage or current detected by the voltage detector and the current transformer; the electric energy detection device provided by the technical scheme is installed in a low-voltage power distribution cabinet; voltage and current conditions can be checked by opening the cabinet door; the display panel and the main body are designed in a split manner, so that the electric energy detection device is convenient to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of power operation monitoring instrument equipment, and particularly relates to an electric energy detection device for a low-voltage power distribution cabinet. Background Art

[0002] The low-voltage power distribution cabinet is an important device in the power operation. During the power transportation process, it is necessary to monitor in real time whether the secondary-side electrical equipment is normal, and regularly detect the current and voltage of the secondary-side load. Traditional detection requires installing a voltmeter and an ammeter. The voltmeter and ammeter are usually installed on the cabinet door of the power distribution cabinet, which is inconvenient to check the voltage and current of each branch load. Using portable instruments for detection increases the safety hazards of construction workers. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems, and provide an electric energy detection device for a low-voltage power distribution cabinet.

[0004] An electric energy detection device for a low-voltage power distribution cabinet includes: a main body, a connecting latch, and a display panel; the main body is provided with a primary-side contact point and a secondary-side contact point, and the primary-side contact point and the secondary-side contact point are electrically connected; a voltage detector and a current transformer are arranged in the main body 1; a signal transmission contact point is arranged in the middle of the front vertical surface of the main body; the display panel includes: a screen, operation buttons, and signal transmission contact pieces; the screen and the operation buttons are arranged at the front end of the display panel; the signal transmission contact pieces are arranged in the middle of the rear end of the display panel; the front end of the main body and the rear end of the display panel are magnetically adsorbed; the signal transmission contact pieces are docked with the signal transmission contact points, and the screen displays the voltage or current detected by the voltage detector and the current transformer.

[0005] The primary-side contact points are divided into a zero-line primary-side contact point, a first live-line primary-side contact point, a second live-line primary-side contact point, and a third live-line primary-side contact point; the zero-line primary-side contact point, the first live-line primary-side contact point, the second live-line primary-side contact point, and the third live-line primary-side contact point are arranged above the main body.

[0006] The secondary-side contact points are divided into a zero-line secondary-side contact point, a first live-line secondary-side contact point, a second live-line secondary-side contact point, and a third live-line secondary-side contact point; the zero-line secondary-side contact point, the first live-line secondary-side contact point, the second live-line secondary-side contact point, and the third live-line secondary-side contact point are arranged below the main body.

[0007] The zero-line primary-side contact point N-1 is electrically connected to the zero-line secondary-side contact point N-2 by a wire to form a zero line N; the first live-line primary-side contact point L1-1 is electrically connected to the first live-line secondary-side contact point L1-2 by a wire to form a first live line L1; the second live-line primary-side contact point L2-1 is electrically connected to the second live-line secondary-side contact point L2-2 by a wire to form a second live line L2; the third live-line primary-side contact point L3-1 is electrically connected to the third live-line secondary-side contact point L3-2 by a wire to form a third live line L3.

[0008] The front elevation of the main body is also provided with a main body N - pole magnet bar and a main body S - pole magnet bar; the main body N - pole magnet bar and the main body S - pole magnet bar are respectively arranged in parallel at the upper and lower ends of the signal transmission contact points; the rear end of the display panel is also provided with a panel S - pole magnet bar and a panel N - pole magnet bar; the panel S - pole magnet bar is magnetically adsorbed to the main body N - pole magnet bar, and the panel N - pole magnet bar is magnetically adsorbed to the main body S - pole magnet bar.

[0009] The voltage detector includes: a first voltage detector, a second voltage detector, and a third voltage detector; the first voltage detector detects the first live - wire voltage, the second voltage detector detects the second live - wire voltage, and the third voltage detector detects the third live - wire voltage.

[0010] The current transformer includes: a first current transformer, a second current transformer, and a third current transformer; the first current transformer detects the first live - wire current value, the second current transformer detects the second live - wire current value, and the third current transformer detects the third live - wire current value.

[0011] Signal output terminals are respectively provided on the first voltage detector, the second voltage detector, the third voltage detector, the first current transformer, the second current transformer, and the third current transformer, and are electrically connected to the signal transmission contact points; the signal transmission contact piece receives the detection values of each current transformer and displays them on the screen.

[0012] This technical solution provides an electric energy detection device for a low - voltage power distribution cabinet, which includes: a main body, a connecting latch, and a display panel; the main body is provided with a primary - side contact point and a secondary - side contact point, and the primary - side contact point and the secondary - side contact point are electrically connected; a voltage detector and a current transformer are arranged inside the main body; a signal transmission contact point is arranged in the middle of the front elevation of the main body; the display panel includes: a screen, operation buttons, and a signal transmission contact piece; the screen and the operation buttons are arranged at the front end of the display panel; the signal transmission contact piece is arranged in the middle of the rear end of the display panel; the front end of the main body and the rear end of the display panel are magnetically adsorbed; the signal transmission contact piece is docked with the signal transmission contact point, and the screen displays the voltage or current detected by the voltage detector and the current transformer; the electric energy detection device proposed by this technical solution is installed in the low - voltage power distribution cabinet; the voltage and current conditions can be viewed by opening the cabinet door; the display panel and the main body are of a split - type design, making the maintenance of the electric energy detection device convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall schematic diagram of an electric energy detection device for a low - voltage power distribution cabinet of the present utility model;

[0014] Figure 2 is the front - axle side connection schematic diagram of an electric energy detection device for a low - voltage power distribution cabinet of the present utility model;

[0015] Figure 3It is the rear axonometric view of the connection of an electric energy detection device for a low-voltage power distribution cabinet of the present utility model;

[0016] Figure 4 It is the circuit schematic diagram of an electric energy detection device for a low-voltage power distribution cabinet of the present utility model. Specific implementation manners

[0017] Next, in combination with the attached drawings of the technical solution, the technical solution will be further clearly and completely described. The described embodiments are only a part of the technical solution, rather than all of the embodiments. Based on this technical solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model. Embodiment

[0018] See Figures 1 to 4 As shown, an electric energy detection device for a low-voltage power distribution cabinet includes: a main body 1, a connection latch 2, and a display panel 3;

[0019] On the front vertical surface of the main body 1 are provided: a signal transmission contact 11, a main body N-pole magnet bar 12, and a main body S-pole magnet bar 13; the signal transmission contact 11 is arranged in the middle of the front vertical surface of the main body 1;

[0020] The main body N-pole magnet bar 12 and the main body S-pole magnet bar 13 are respectively arranged at the upper and lower ends of the signal transmission contact 11; the signal transmission contact 11, the main body N-pole magnet bar 12, and the main body S-pole magnet bar 13 are parallel to each other;

[0021] The connection latch 2 is composed of a hook 21 and a lock 22, and at least one set of the hook 21 and the lock 22 is provided; the hook 21 is arranged at the upper rear end of the main body 1; the lock is arranged at the lower rear end of the main body 1; the hook 21 and the lock 22 can be clamped on the U-shaped gusset plate of the low-voltage power distribution cabinet.

[0022] Above the main body 1 are provided in parallel: a zero-line primary side contact point N-1, a first live-line primary side contact point L1-1, a second live-line primary side contact point L2-1, and a third live-line primary side contact point L3-1; below the main body 1 are provided in parallel: a zero-line secondary side contact point N-2, a first live-line secondary side contact point L1-2, a second live-line secondary side contact point L2-2, and a third live-line secondary side contact point L3-2;

[0023] The zero-line primary side contact point N-1 is electrically connected to the zero-line secondary side contact point N-2 to form a zero line N; the first live-line primary side contact point L1-1 is electrically connected to the first live-line secondary side contact point L1-2 to form a first live line L1; the second live-line primary side contact point L2-1 is electrically connected to the second live-line secondary side contact point L2-2 to form a second live line L2; the third live-line primary side contact point L3-1 is electrically connected to the third live-line secondary side contact point L3-2 to form a third live line L3;

[0024] The main body 1 is provided with a voltage detector and a current transformer. The voltage detector detects the line voltage value, and the current transformer detects the current value of each live wire.

[0025] The voltage detector includes: a first voltage detector 141, a second voltage detector 142, and a third voltage detector 143. The first voltage detector 141 is connected in parallel between the first live wire L1 and the neutral wire N. The second voltage detector 142 is connected in parallel between the second live wire L2 and the neutral wire N. The third voltage detector 143 is connected in parallel between the third live wire L3 and the neutral wire N. The first voltage detector 141 detects the voltage of the first live wire L1, the second voltage detector 142 detects the voltage of the second live wire L2, and the third voltage detector 143 detects the voltage of the third live wire L3.

[0026] The current transformer includes: a first current transformer 151, a second current transformer 152, and a third current transformer 153. The first current transformer 151 detects the current value of the first live wire L1, the second current transformer 152 detects the current value of the second live wire L2, and the third current transformer 153 detects the current value of the third live wire L3.

[0027] The first voltage detector 141, the second voltage detector 142, the third voltage detector 143, the first current transformer 151, the second current transformer 152, and the third current transformer 153 are all provided with signal output terminals. The signal output terminals of the first voltage detector 141, the second voltage detector 142, the third voltage detector 143, the first current transformer 151, the second current transformer 152, and the third current transformer 153 are connected to the signal transmission contact 11 through a resistor or a resistor-capacitor circuit for voltage reduction and then through a cable. That is, the signal output terminals of the voltage detector and the current transformer are connected to the signal transmission contact 11 through a cable.

[0028] The display panel 3 includes: a screen 31, operation buttons 32, a signal transmission contact piece 33, a panel S-pole magnet bar 34, and a panel N-pole magnet bar 35. The screen 31 and the operation buttons 32 are arranged at the front end of the display panel 3. The signal transmission contact piece 33 is arranged in the middle of the rear end of the display panel 3.

[0029] The panel S-pole magnet bar 34 and the panel N-pole magnet bar 35 are respectively arranged at the upper and lower ends of the signal transmission contact piece 33.

[0030] A flange 36 is further provided behind the display panel 3. When the display panel 3 is placed on a plane, the flange 36 can reduce the damage of the signal transmission contact piece 33.

[0031] The S-pole magnet bar 34 of the panel is magnetically adsorbed to the N-pole magnet bar 12 of the main body, and the N-pole magnet bar 35 of the panel is magnetically adsorbed to the S-pole magnet bar 13 of the main body; the signal transmission contact piece 33 is docked with the signal transmission contact point 11; the operation button 32 can switch the screen 31 to display the voltage or current between each line; different magnetic poles are provided for the magnet bars on the main body and the magnet bars on the panel to prevent the wrong docking of the signal transmission contact piece 33 and the signal transmission contact point 11.

Claims

1. An electric energy detection device for a low-voltage power distribution cabinet, which comprises: Main body (1), connecting latch (2), display panel (3); characterized in that: the main body (1) is provided with a primary side contact point and a secondary side contact point, and the primary side contact point and the secondary side contact point are electrically connected; a voltage detector and a current transformer are provided inside the main body (1); a signal transmission contact point (11) is provided in the middle of the front vertical surface of the main body (1); the display panel (3) includes: a screen (31), operation buttons (32), and signal transmission contact pieces (33); the screen (31) and the operation buttons (32) are provided at the front end of the display panel (3); the signal transmission contact piece (33) is provided in the middle of the rear end of the display panel (3); the front end of the main body (1) and the rear end of the display panel (3) are magnetically adsorbed; the signal transmission contact piece (33) is docked with the signal transmission contact point (11), and the screen (31) displays the voltage or current detected by the voltage detector and the current transformer.

2. The power detection device of the low-voltage power distribution cabinet according to claim 1, characterized in that: The primary side contact points are divided into a neutral line primary side contact point (N-1), a first live wire primary side contact point (L1-1), a second live wire primary side contact point (L2-1), and a third live wire primary side contact point (L3-1); the neutral line primary side contact point (N-1), the first live wire primary side contact point (L1-1), the second live wire primary side contact point (L2-1), and the third live wire primary side contact point (L3-1) are provided above the main body (1); the secondary side contact points are divided into a neutral line secondary side contact point (N-2), a first live wire secondary side contact point (L1-2), a second live wire secondary side contact point (L2-2), and a third live wire secondary side contact point (L3-2); the neutral line secondary side contact point (N-2), the first live wire secondary side contact point (L1-2), the second live wire secondary side contact point (L2-2), and the third live wire secondary side contact point (L3-2) are provided below the main body (1).

3. The power detection device for the low-voltage power distribution cabinet according to claim 2, wherein: The neutral line primary side contact point (N-1) and the neutral line secondary side contact point (N-2) are electrically connected by a wire to form a neutral line (N); the first live wire primary side contact point (L1-1) and the first live wire secondary side contact point (L1-2) are electrically connected by a wire to form a first live wire (L1); the second live wire primary side contact point (L2-1) and the second live wire secondary side contact point (L2-2) are electrically connected by a wire to form a second live wire (L2); the third live wire primary side contact point (L3-1) and the third live wire secondary side contact point (L3-2) are electrically connected by a wire to form a third live wire (L3).

4. The power detection device of the low-voltage power distribution cabinet according to claim 3, wherein: The front vertical surface of the main body (1) is further provided with a main body N-pole magnet bar (12) and a main body S-pole magnet bar (13); the main body N-pole magnet bar (12) and the main body S-pole magnet bar (13) are respectively arranged in parallel at the upper and lower ends of the signal transmission contact point (11); the rear end of the display panel (3) is further provided with a panel S-pole magnet bar (34) and a panel N-pole magnet bar (35); the panel S-pole magnet bar (34) is magnetically adsorbed to the main body N-pole magnet bar (12), and the panel N-pole magnet bar (35) is magnetically adsorbed to the main body S-pole magnet bar (13).

5. The power detection device of the low-voltage power distribution cabinet according to claim 4, characterized in that: The voltage detector described above includes: a first voltage detector (141), a second voltage detector (142), and a third voltage detector (143); the first voltage detector (141) detects the voltage of the first live wire (L1), the second voltage detector (142) detects the voltage of the second live wire (L2), and the third voltage detector (143) detects the voltage of the third live wire (L3).

6. The power detection device of the low-voltage power distribution cabinet according to claim 5, characterized in that: The current transformer described above includes: a first current transformer (151), a second current transformer (152), and a third current transformer (153); the first current transformer (151) detects the current value of the first live wire (L1), the second current transformer (152) detects the current value of the second live wire (L2), and the third current transformer (153) detects the current value of the third live wire (L3).

7. The power detection device of the low-voltage power distribution cabinet according to claim 6, characterized in that: Signal output terminals are provided on each of the first voltage detector (141), the second voltage detector (142), the third voltage detector (143), the first current transformer (151), the second current transformer (152), and the third current transformer (153) and are electrically connected to the signal transmission contact (11); the signal transmission contact piece (33) receives the detection values of each current transformer and displays them on the screen.

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