CN212723061U

CN212723061U - Electric power monitoring instrument

Info

Publication number: CN212723061U
Application number: CN202021556093.3U
Authority: CN
Inventors: 李培
Original assignee: Ningbo Peizheng Electronic Technology Co ltd
Current assignee: Ningbo Peizheng Electronic Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-16
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses an electric power monitoring instrument, which comprises a shell arranged on a panel, wherein a control unit, a current transformer, a collecting unit, a signal input port, a display unit and a voltage stabilizing unit are arranged in the shell; the shell is provided with a display window and a wiring port, the display unit is arranged on the display window, and the signal input port is arranged on the wiring port; the casing is internally provided with an accommodating space, the accommodating space is provided with a mounting port and a wire outlet, the casing is detachably provided with a positioning piece, the current transformer is matched and arranged on the positioning piece and limited in the accommodating space, the positioning piece is inserted into the accommodating space and matched and arranged on the mounting port, the positioning piece is provided with a wire passing channel for bypassing a strong current loop, one end of the wire passing channel is provided with a wire inlet, and the other end of the wire passing channel is communicated with the wire outlet. During detection, an external mutual inductor is not needed, the shell does not need to be detached, the structure is simple, parameter acquisition is carried out in a non-contact and magnetic induction mode, and the parameter detection efficiency is improved.

Description

Electric power monitoring instrument

Technical Field

The utility model relates to an electric power monitoring technology field, concretely relates to electric power monitoring instrument.

Background

The electric power monitoring instrument can replace a conventional electric power transmitter and a conventional measuring instrument, is used as an advanced intelligent and digital front-end acquisition element, is widely applied to various control systems, data acquisition monitoring systems and energy management systems, and can respectively measure parameters such as current, voltage, power factor, electric energy and the like in a power grid.

When the current is collected by the existing power monitoring instrument, the current monitoring instrument needs to be externally connected with a current transformer, and the installation and the disassembly are troublesome, so that the collection efficiency is low.

SUMMERY OF THE UTILITY MODEL

For solving the technical defect, the utility model discloses a technical scheme lie in, provide an electric power monitoring instrument, including being used for installing the casing on the panel, install control unit, current transformer, acquisition unit, signal input port, display element and voltage stabilizing unit in the casing, acquisition unit, display element and voltage stabilizing unit are connected with the control unit electricity respectively, signal input port, current transformer are connected with the acquisition unit electricity respectively, signal input port is connected with the voltage stabilizing unit electricity.

The shell is provided with a display window and a wiring port, the display unit is arranged on the display window, and the signal input port is arranged on the wiring port; the utility model discloses a set up the strong current return circuit, including casing, current transformer, locating piece, mounting port, outlet, be equipped with the accommodation space in the casing, be equipped with installing port and outlet on the accommodation space, can dismantle on the casing and be equipped with the setting element, current transformer cooperation is located on the setting element and spacing in the accommodation space, the setting element inserts in the accommodation space and the cooperation is located on the installing port, be equipped with the wire passing channel who is used for bypassing the strong current return circuit on the setting element, wire passing channel's one end is equipped with the inlet wire, wire passing channel.

Furthermore, a wire groove is arranged on the shell and is communicated with the wire outlet.

Furthermore, the locating piece comprises a locating cylinder and a sealing cover, the sealing cover is arranged at the outer end of the locating cylinder, a wire passing channel is formed in the space in the locating cylinder, the locating cylinder is matched with the containing space to clamp the current transformer, and the sealing cover is installed on the installation opening in a matched mode.

Furthermore, a first limiting part is arranged on the shell, a second limiting part is arranged on the side wall of the shell, and the first limiting part and the second limiting part are matched with each other to clamp the panel.

Further, the casing includes upper housing and lower casing, upper housing and lower casing be slider spout connection structure or lock connection structure or threaded connection structure.

Furthermore, the first locating part is a horizontal convex edge arranged on the upper edge of the shell, a through hole is formed in the side wall of the shell, the second locating part comprises an elastic sheet and a fixture block arranged at the end part of the elastic sheet, the elastic sheet is vertically arranged in the through hole and keeps a distance with the end wall of the through hole, and the fixture block is matched with the horizontal convex edge.

Furthermore, the collection unit comprises a current collection unit and a voltage collection unit, the signal input port comprises a current input port and a voltage input port, the current input port is electrically connected with the current collection unit, the voltage input port is electrically connected with the voltage stabilization unit and the voltage collection unit respectively, the current transformer is electrically connected with the current collection unit, and the voltage input port is correspondingly installed on the wiring port.

Furthermore, the device also comprises an indicator light unit which is respectively and electrically connected with the control unit and the voltage stabilizing unit.

The shell is provided with a key mounting hole, and the key unit is mounted on the key mounting hole.

Compared with the prior art the utility model discloses technical scheme's beneficial effect does:

the utility model provides a power monitoring instrument, through setting up accommodation space and setting element with the mutual-inductor integration in the casing, during the detection, need not external mutual-inductor, need not to dismantle the casing, simple structure; the strong current circuit is connected in series on the wire passing channel, various parameters are collected and monitored in a non-contact and magnetic induction mode, reliability is high, and parameter detection efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of a housing of an electric power monitoring instrument according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a housing of a power monitoring instrument according to an embodiment of the present invention;

fig. 3 is an exploded view of another orientation of a housing of a power monitoring instrument provided by an embodiment of the present invention;

fig. 4 is a control circuit diagram of a control unit in an electric power monitoring instrument according to an embodiment of the present invention;

fig. 5 is a circuit diagram of an acquisition unit and a voltage stabilizing unit in an electric power monitoring instrument provided by the embodiment of the present invention.

The reference numbers are as follows:

10. the device comprises a shell, 11, a display window, 12, a wiring port, 13, an accommodating space, 131, an installation port, 132, an outlet port, 133, a sliding chute, 14, a wire guide groove, 15, a first limiting piece, 16, a through hole, 17, a key installation port, 20, a positioning piece, 21, a wire passing channel, 22, a wire inlet, 23, a positioning barrel, 24, a sealing cover, 25, a sliding piece, 30, a voltage stabilizing unit, 40, a second limiting piece, 41, an elastic piece, 42, a clamping block, 50, a current collecting unit, 60, a voltage collecting unit, 70, an indicator light unit, 80 and a key unit.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Please refer to fig. 1-5, the utility model provides a pair of electric power monitoring instrument, including being used for installing casing 10 on the panel, install control unit, current transformer, acquisition unit, signal input port, display element and voltage stabilizing unit 30 in casing 10, acquisition unit, display element and voltage stabilizing unit 30 are connected with the control unit electricity respectively, and signal input port, current transformer are connected with the acquisition unit electricity respectively, and signal input port is connected with voltage stabilizing unit 30 electricity.

A display window 11 and a wiring port 12 are arranged on the shell 10, a display unit is arranged on the display window 11, and a signal input port is arranged on the wiring port 12; be equipped with accommodation space 13 in the casing 10, be equipped with installing port 131 and outlet 132 on the accommodation space 13, casing 10 is last to dismantle and is equipped with setting element 20, current transformer cooperation is located on setting element 20 and is spacing in accommodation space 13, setting element 20 inserts in accommodation space 13 and the cooperation is located on installing port 131, be equipped with the wire passing channel 21 that is used for bypassing the forceful electric power return circuit on the setting element 20, the one end of wire passing channel 21 is equipped with inlet 22, the other end and the outlet 132 intercommunication of wire passing channel 21.

Specifically, the casing 10 is provided with a wire groove 14, the wire groove 14 is communicated with the wire outlet 132, and the inner wall of the wire groove 14 limits the current transformer. The positioning member 20 includes a positioning cylinder 23 and a sealing cover 24, the sealing cover 24 is disposed at an outer end of the positioning cylinder 23, a wire passing channel 21 is formed in a space inside the positioning cylinder 23, the positioning cylinder 23 is matched with the accommodating space 13 to clamp the current transformer, and the sealing cover 24 is installed on the installation opening 131 in a matching manner. The current transformer is convenient to mount and dismount.

Furthermore, the inner side of the mounting opening 131 is provided with a sliding groove 133, the cover 24 is provided with a sliding member 25, and the sliding member 25 is slidably fitted on the sliding groove 133.

Preferably, the housing 10 includes an upper housing and a lower housing, and the upper housing and the lower housing are a sliding block and sliding groove connection structure, a buckling connection structure, or a threaded connection structure.

Specifically, be equipped with bayonet socket and spacing groove on going up the casing, be equipped with on the casing down and detain piece and stopper, detain piece and bayonet socket cooperation lock joint, spacing groove and stopper cooperation joint. The wiring port 12 is provided with two, and a wiring port 12 sets up the tip at last casing, and another wiring port 12 sets up the tip at casing down, and this wiring port 12 inboard is equipped with and is used for the spacing position circle of binding post to improve the stability that binding post connects.

Preferably, a first limiting member 15 is disposed on the housing 10, a second limiting member 40 is disposed on a sidewall of the housing 10, and the first limiting member 15 and the second limiting member 40 cooperate to block the panel. Or the shell 10 is clamped on the bayonet of the panel through the second limiting block 40.

Specifically, the first limiting member 15 is a horizontal convex edge arranged on the upper edge of the housing 10, a through hole 16 is formed in the side wall of the housing 10, the second limiting member 40 includes an elastic sheet 41 and a fixture block 42 arranged at the end of the elastic sheet 41, the elastic sheet 41 is vertically arranged in the through hole 16 and keeps a distance from the end wall of the through hole 16, and the fixture block 42 is matched with the horizontal convex edge.

Preferably, the collection unit includes a current collection unit 50 and a voltage collection unit 60, the signal input port includes a current input port and a voltage input port, the current input port is electrically connected with the current collection unit 50, the voltage input port is electrically connected with the voltage stabilization unit 30 and the voltage collection unit 60, the current transformer is electrically connected with the current collection unit 50, and the voltage input port is correspondingly installed on the wiring port 12.

Specifically, voltage input port is binding post, and a wiring mouth 12 is used for connecting outside 110/220V single phase AC power frequency electric network voltage, and another wiring mouth 12 is used for adjusting connecting wire's elasticity degree, and the simple and installation of wiring, dismantlement are all comparatively convenient.

Preferably, the test device further comprises an indicator light unit 70, a key unit 80, a test interface and a calibration port, wherein the indicator light unit 70 is electrically connected with the control unit and the voltage stabilizing unit 70 respectively, the key unit 80 is electrically connected with the control unit, the shell 10 is provided with a key installation port 17, and the key unit 80 is installed on the key installation port 17.

As shown in fig. 4, U2 is a control unit, LCD is a display unit, P1 is a test interface, P3 is a current input port, P4 is a voltage input port, an I-port and an I + port between the current input port and the current collecting unit 50 are connected to a current transformer, and a calibration port is connected to an external calibration instrument for calibrating the power monitoring instrument. The key unit 80 is used for error adjustment of the power monitoring instrument. The testing device further comprises a circuit board, wherein the control unit, the current transformer, the acquisition unit, the signal input port, the display unit, the voltage stabilizing unit 30, the indicator lamp unit 70, the key unit 80, the testing interface and the calibration port are all arranged on the circuit board, and the calibration port is connected with the key unit 80, as shown in fig. 4.

The utility model provides a pair of electric power monitoring instrument, during the installation, the mounting hole has been seted up on the panel, the display element of circuit board is down, display element arranges in on display window 11, binding post corresponds with wiring mouth 12, button unit 80 arranges in button installing port 17, clamp the circuit board on last casing and through the fix with screw, with current transformer suit on a location section of thick bamboo 23, the location section of thick bamboo 23 that will be equipped with current transformer from the top of casing down

inserts accommodation space

13, 24 cards of closing cap are on installing port 131, with last casing and casing lock down.

When the alternating current is detected, the current acquisition unit 50 is connected with a sampling output line of the current transformer, an external strong current circuit passes through the wire passing channel 21 corresponding to the current transformer, and the alternating current in the strong current circuit can be detected in a non-contact and electromagnetic induction mode. When detecting the alternating voltage, the voltage input port is connected with the alternating voltage input signal to detect the alternating voltage in the strong current circuit.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric power monitoring instrument, characterized in that: the intelligent control panel comprises a shell (10) arranged on a panel, wherein a control unit, a current transformer, a collection unit, a signal input port, a display unit and a voltage stabilizing unit (30) are arranged in the shell (10), the collection unit, the display unit and the voltage stabilizing unit (30) are respectively and electrically connected with the control unit, the signal input port and the current transformer are respectively and electrically connected with the collection unit, and the signal input port is electrically connected with the voltage stabilizing unit (30);

the shell (10) is provided with a display window (11) and a wiring port (12), the display unit is installed on the display window (11), and the signal input port is installed on the wiring port (12); be equipped with accommodation space (13) in casing (10), be equipped with installing port (131) and outlet (132) on accommodation space (13), can dismantle on casing (10) and be equipped with setting element (20), current transformer cooperation is located on setting element (20) and is spacing in accommodation space (13), setting element (20) are inserted in accommodation space (13) and the cooperation is located on installing port (131), be equipped with on setting element (20) and be used for bypassing strong electric circuit's wire passing channel (21), the one end of wire passing channel (21) is equipped with inlet (22), the other end and outlet (132) the intercommunication of wire passing channel (21).

2. The power monitoring meter of claim 1, wherein: the shell (10) is provided with a wire groove (14), and the wire groove (14) is communicated with the wire outlet (132).

3. The power monitoring meter of claim 1, wherein: the positioning piece (20) comprises a positioning barrel (23) and a sealing cover (24), the sealing cover (24) is arranged at the outer end of the positioning barrel (23), a line passing channel (21) is formed in the inner space of the positioning barrel (23), the positioning barrel (23) is matched with the accommodating space (13) to clamp the current transformer, and the sealing cover (24) is installed on the installation opening (131) in a matched mode.

4. The power monitoring meter of claim 1, wherein: be equipped with first locating part (15) on casing (10), be equipped with second locating part (40) on the lateral wall of casing (10), first locating part (15) and second locating part (40) cooperate and block the panel.

5. The power monitoring meter of claim 1, wherein: the shell (10) comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are of a sliding block sliding groove connecting structure or a buckling connecting structure or a threaded connecting structure.

6. The power monitoring meter of claim 4, wherein: the first limiting part (15) is a horizontal convex edge arranged on the upper edge of the shell (10), a through hole (16) is formed in the side wall of the shell (10), the second limiting part (40) comprises an elastic sheet (41) and a clamping block (42) arranged at the end part of the elastic sheet (41), the elastic sheet (41) is vertically arranged in the through hole (16) and keeps a distance from the end wall of the through hole (16), and the clamping block (42) is matched with the horizontal convex edge.

7. The power monitoring meter of claim 1, wherein: the collection unit includes current acquisition unit (50) and voltage acquisition unit (60), signal input port includes current input port and voltage input port, current input port is connected with current acquisition unit (50) electricity, voltage input port is connected with voltage stabilizing unit (30), voltage acquisition unit (60) electricity respectively, current transformer is connected with current acquisition unit (50) electricity, voltage input port corresponds and installs on wiring mouth (12).

8. The power monitoring meter of claim 1, wherein: the device also comprises an indicator light unit (70), wherein the indicator light unit (70) is electrically connected with the control unit and the voltage stabilizing unit (30) respectively.

9. The power monitoring meter of claim 1, wherein: the novel multifunctional key is characterized by further comprising a key unit (80), wherein the key unit (80) is electrically connected with the control unit, a key installation opening (17) is formed in the shell (10), and the key unit (80) is installed on the key installation opening (17).