CN106338668B

CN106338668B - High-performance combination instrument

Info

Publication number: CN106338668B
Application number: CN201610771283.9A
Authority: CN
Inventors: 叶建川; 叶春志; 杨孝洪
Original assignee: Sichuan Haboat Electrical Co ltd
Current assignee: Sichuan Haboat Electrical Co ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2020-09-22
Anticipated expiration: 2036-08-30
Also published as: CN106338668A

Abstract

The invention provides a high-performance combined instrument which comprises a display unit for displaying monitoring data, a mutual inductor box for collecting data of a switch and a measurement control module for processing the data, wherein the mutual inductor box is detachably connected with the measurement control module, the display unit is connected with the measurement control module through a cable, a through groove is formed in the mutual inductor box, and the mutual inductor box is assembled on a switch outlet end needing to be measured through the through groove. The invention has various measuring functions which can be provided by the traditional instrument, and can also eliminate the adverse factors of the connection of the traditional instrument; the instrument does not need an external mutual inductor, saves the installation space, and has simple connection and good universality.

Description

High-performance combination instrument

Technical Field

The invention relates to the technical field of intelligent low-voltage switch cabinet components, in particular to a high-performance combination instrument.

Background

At present, a multifunctional electric power instrument for a low-voltage switch cabinet assembly mainly adopts the technical scheme that a mutual inductor is arranged inside a switch cabinet, and electric parameters and the running state of a switch are monitored through complex connecting lines. The disadvantages of the connection mode are that: large occupied space, labor-time consumption, high cost, inconvenient installation and maintenance and the like.

Disclosure of Invention

The invention aims to: the high-performance combination instrument aims at solving the problems that the existing instrument is large in occupied space, high in cost and inconvenient to install and maintain, and consumes working hours when being connected.

The invention aims to be realized by the following technical scheme:

the utility model provides a high performance combination meter, its characterized in that, this instrument is including the display element who is used for showing monitoring data, the mutual-inductor box that is used for gathering the data of switch and the measurement control module that is used for handling data, the mutual-inductor box can be dismantled with the measurement control module and be connected, the display element passes through the cable and is connected with the measurement control module, be equipped with logical groove on the mutual-inductor box, the mutual-inductor box is qualified for the next round of competitions and is held at the switch that needs the measurement through this logical groove assembly.

As a further technical scheme, the mutual-inductor box includes that bottom plate, the vertical baffle of a plurality of and a plurality of can dismantle the baffle, the middle part of vertical baffle is equipped with the logical groove that the leading-out terminal that is used for the switch passes through, the both sides tip of can dismantling the baffle all is equipped with the draw-in groove, the vertical baffle parallel fixation of a plurality of is on the bottom plate, be provided with respectively on the relative lateral wall of the homonymy altogether of two adjacent vertical baffles with the dop that the draw-in groove cooperation of dismantling the baffle used, be located and be equipped with the rand on two.

As a further technical scheme, measure and control module including observing and controling the box, observe and control the box apron, observe and control the box roof, control panel, power strip and main control board, observe and control the box and constitute by the bottom plate with fix three curb plate on the bottom plate, observe and control the box apron and be connected with observing and control the box and constitute one and hold the chamber, control panel, power strip and main control board setting should hold the intracavity, observe and control the box roof lid and should hold on the chamber, be equipped with the convex closure on observing and controlling the surface of box apron, be equipped with the convex closure on observing and controlling the surface of the curb plate of box that the box apron just right is observed and control, observe and control and fix on the convex closure through the rand card between.

As a further technical scheme, the instrument further comprises a zero sequence box, wherein the zero sequence box comprises a bottom plate, a side plate and a plurality of vertical baffle plates, the middle of each vertical baffle plate is provided with a through groove for the leading-out end of the switch to pass through, the side plate and the plurality of vertical baffle plates are fixed on the bottom plate, the plurality of vertical baffle plates are arranged in parallel, the common end parts of all the vertical baffle plates are fixed on the side plate, the end parts of at least two adjacent vertical baffle plates are provided with clamping grooves, and the clamping grooves of the zero sequence box are connected with clamping heads of the mutual inductor box.

As a further technical scheme, the instrument further comprises a temperature detection unit, wherein the temperature detection unit comprises a temperature control box, a temperature control box end cover, an insertion plate and a base, the temperature control box comprises a bottom plate and three side plates fixed on the bottom plate, the upper end parts of the three side plates are provided with strip-shaped grooves communicated with one another, the temperature control box end cover is provided with the strip-shaped grooves, the temperature control box end cover is detachably connected to the temperature control box, four edges of the insertion plate are clamped in the strip-shaped grooves of the side plates and the temperature control box end cover respectively, and the temperature detection unit is fixed on the zero sequence box through the base.

Compared with the prior art, the invention has the following advantages:

1. the invention has various measuring functions which can be provided by the traditional instrument, and can also eliminate the adverse factors of the connection of the traditional instrument;

2. the instrument does not need an external mutual inductor, saves the installation space and is simple to connect;

3. the instrument has good universality and can be used on switch cabinets with different current magnitudes;

4. most of components of the instrument are of detachable structures, and the instrument is convenient to replace.

Drawings

FIG. 1 is an exploded view of the present invention in use;

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

FIG. 3 is a partially exploded view of the present invention;

FIG. 4 is a schematic structural diagram of a measurement control module;

FIG. 5 is a schematic view of a disassembled structure of the measurement control module;

FIG. 6 is a schematic structural view of the measurement and control box;

FIG. 7 is a schematic structural diagram of a temperature detecting unit;

FIG. 8 is a schematic structural view of a temperature control box;

FIG. 9 is a schematic structural view of an end cap of the temperature control box;

FIG. 10 is a schematic structural view of a base of a thermal cassette;

FIG. 11 is a schematic view of a temperature control box patch panel;

fig. 12 is an exploded view of a transformer box and a zero sequence box;

FIG. 13 is a schematic view of a portion of the construction of the transformer cassette;

fig. 14 is a schematic structural diagram of a zero sequence transformer;

FIG. 15 is a schematic view of the structure of the card hanging member of the mounting bracket;

FIG. 16 is a schematic view of the construction of the removable baffle;

FIG. 17 is a schematic structural view of a transformer;

fig. 18 is a schematic structural diagram of a zero sequence box.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Examples

The invention provides a high-performance combination instrument which is modularly designed on the basis of a conventional instrument, and eliminates the adverse factors of the connection of the conventional instrument. As shown in fig. 1, 2 and 3, the meter includes a display unit 1 for displaying monitoring data, a transformer box 2 for collecting data of a switch 4, and a measurement control module 3 for processing data. The mutual inductor box 2 is detachably connected with the measurement control module 3. The display unit 1 is connected with the measurement control module 3 through a cable, and is provided with a quick socket. A through groove 2021 is formed in the transformer box 2, and the transformer box 2 is assembled on a switch outlet end needing to be measured through the through groove 2021 and the busbar 401. The display unit 1 employs a conventional LED display. A mutual inductor 7 is arranged in the mutual inductor box 2, and a zero sequence mutual inductor 8 can be arranged according to the requirement. The basic electrical elements of the measurement control module 3 are the same as those of a conventional instrument, and the measurement control module has the functions of full electric gas quantity measurement, alarm, 1DI &1DO, harmonic content, data recording, clock, fixed mode waveform capture, load trend prediction, adjustable mode wave capture, voltage swell/swell monitoring and RS485/Modbus communication interface. The switch 4 is typically a circuit breaker. When fire monitoring is needed, the zero sequence box 6 and the temperature detection unit 5 can be additionally arranged on the instrument, and the zero sequence transformer 8 can be arranged as required, wherein the zero sequence transformer 8, the zero sequence box 6 and the temperature detection unit 5 jointly form a fire monitoring module.

When the instrument is used, the mutual inductor box 2 is assembled on a busbar 401 of a leading-out terminal of a switch 4 needing to be measured, and data is sampled. Measurement control module 3 installs in the top of mutual-inductor box 2, and the conflagration monitoring module assembly all can in the left and right sides of measurement control module 3, and this structure is applicable to different switch type mounting means. The measuring and controlling range of the meter is 40-250A, 400-630A.

The instrument is used in a low-voltage switch cabinet, can eliminate the adverse factors of traditional connection, and can provide various measurement functions required by monitoring electrical equipment: full electric gas quantity measurement, alarm, 1DI &1DO, harmonic content, data recording, clock, fixed mode waveform capture, load trend prediction, adjustable mode waveform capture, voltage swell/swell monitoring and RS485/Modbus communication interface; the leakage current of the system can be accurately monitored, and the electrical performance and fault alarm information such as abnormal normal temperature rise of cables, power distribution cabinets and the like can also be monitored. This instrument need not external mutual inductor, practices thrift installation space, connects simply, and in addition, this kind of combination meter structure can use on the cubical switchboard of different electric currents size, improves the commonality of accessory.

The invention provides a specific structure of a measurement and control module, which comprises a measurement and control box 301, a measurement and control box cover plate 302, a measurement and control box top plate 303, a control plate 304, a power supply plate 305 and a main control plate 306, as shown in fig. 4, 5 and 6. The measurement and control box 301 is composed of a bottom plate 3011 and three side plates (3012, 3013, 3014) fixed on the bottom plate 3011. Observe and control box apron 302 and observe and control box 301 and be connected and constitute a holding chamber, and control panel 304, power supply board 305 and main control board 306 set up in this holding chamber, observe and control box roof 303 lid on this holding chamber. The measurement and control box cover plate 302 and the measurement and control box 301 are connected in a buckling mode, and are convenient to detach. The measurement and control box top plate 303 is connected with the accommodating cavity formed by the measurement and control box cover plate 302 and the measurement and control box 301 in a buckling mode, so that the measurement and control box is convenient to detach.

The outer surface of the measurement and control box cover plate 302 is provided with a convex hull 3021, the outer surface of the side plate 3012 of the measurement and control box 301 opposite to the measurement and control box cover plate 302 is provided with a convex hull 30121, and the convex hulls can be matched with a clamping ring 205 on the mutual inductor box 2 for use, so that the measurement and control module and the mutual inductor box 2 can be detachably connected together. Slots for installing a control board 304, a power board 305 and a main control board 306 are arranged in the measurement and control box 301. These slots are formed by a plurality of bars 3015 fixed to the inner wall of the measurement and control box 301: two transverse strips 3015 are arranged at two ends of the bottom of the measurement and control box 301 and used for horizontally placing the power panel 305; the middle of the measurement and control box 301 is provided with a plurality of cross bars 3015 to form two downward channels for vertically clamping the inserted control board 304 and the main control board 306. The control board 304 is connected with the power board 305 through a connector 308, pins of the connector are arranged on the control board, and jacks of the connector are arranged on the power board. The control board 304 performs data transmission through a pin header 3041 provided on the control board 304, and the main control board 306 performs data transmission through a pin header 3061 provided on the main control board 306. According to the requirement, a multi-hole plug 309 can be inserted into the pin header of the control panel or the pin header of the main control panel, and the implementation adopts an 8-hole plug. The top plate 303 of the measurement and control box is provided with a through hole 3031, and a connecting plate 307 is arranged in the through hole.

The invention provides a temperature detection unit 5, as shown in fig. 7, 8, 9, 10 and 11, the temperature detection unit 5 comprises a temperature control box 501, a temperature control box end cover 502 and a plugboard 503. The temperature control box 501 is composed of a bottom plate 5011 and three side plates (5012, 5013, 5014) fixed to the bottom plate 5011, and the upper ends of the three side plates (5012, 5013, 5014) are provided with strip-shaped grooves 5015 communicating with each other. A strip-shaped groove 5021 is arranged on the temperature control box end cover 502, and the temperature control box end cover 502 is detachably connected to the temperature control box 501. The four sides of the plugboard 503 are respectively clamped in the side plates (5012, 5013 and 5014) and the strip-shaped grooves of the temperature control box end cover 502.

The detachable connection mode between the temperature control box end cover 502 and the temperature control box 501 is specifically as follows: the bottom plate 5011 is provided with a clamping hole 50111, the temperature control box end cover 502 is provided with a clamping head 5022 matched with the clamping hole 50111 of the bottom plate, and the two are clamped and connected through the clamping hole and the clamping head. The plugging plate 503 is provided with a plurality of through holes 5031 for incoming. The temperature detecting unit 5 comprises a base 504, one side of the upper surface of the base 504 protrudes upwards to form a stopper 5041, the other side of the upper surface of the base 504 is provided with a clamping tongue 5042, one side of a bottom plate 5011 of the temperature control box 501 is recessed inwards to form a groove 50112 matched with the stopper 5041, the other side of the bottom plate 5011 is provided with a clamping part 50113 matched with the clamping tongue 5042, and the temperature control box 501 can be fixed on the base 504 through the structure, and the base 504 can be fixed on the zero sequence box 6. The temperature detection unit 5 is quickly connected with the zero sequence box 6 through a clamping groove and is connected with the main control board through a plug interface, and the power supply connection and the communication interface are connected to form a whole.

The invention provides a transformer box 2, as shown in fig. 12 to 17, the transformer box 2 comprises a bottom plate 201, a plurality of vertical baffles 202 and a plurality of detachable baffles 203. This implementation employs three vertical baffles 202 and four removable baffles 203. The middle part of the vertical baffle 202 is provided with a through groove 2021 for the outlet end of the switch to pass through. The end parts of the two sides of the detachable baffle 203 are both provided with a clamping groove 2031. The vertical baffles 202 are fixed on the bottom plate 201 in parallel, and the opposite side walls of the two adjacent vertical baffles 202 on the same side are respectively provided with a clamping head 2022 used in cooperation with the clamping groove 2031 of the detachable baffle 203.

In addition, vertical clamping strips 204 are arranged on opposite side walls of two adjacent vertical baffles 202, every four vertical clamping strips 204 are used as a group, and the mutual inductor 7 is just placed between the four vertical clamping strips 204. The through hole 701 is arranged in the middle of the transformer 7, the through hole 701 is communicated with the through groove 2021, and the busbar 401 penetrates through the through hole 701 and the through hole 801. The two vertical baffles 202 at the two ends are provided with clamping rings 205 which are convenient to be connected with a measurement control module. The clamping groove 2031 of the detachable baffle plate 203 is a concave groove, and the clamping head of the vertical baffle plate 202 is a convex clamping head, so that the detachable baffle plate 203 is convenient to mount. A mounting bracket 206 is arranged on one vertical baffle 202 positioned at the head, the mounting bracket 206 comprises a latch member 2061 and a clip member 2062, the latch member 2061 is fixed on the vertical baffle 202, and the clip member 2062 is sleeved on the latch member 2061 and is limited and fixed by the latch of the latch member 2061. The through groove on the vertical baffle plate positioned at the head part at the other side is divided into three sections.

When three vertical baffles 202 and four detachable baffles 203 are adopted, two spaces are formed between the three vertical baffles 202, one space is used for placing the mutual inductor 7, the other space is used for placing the zero sequence mutual inductor 8, and the zero sequence mutual inductor 8 is provided with a through hole 801 communicated with the through groove 2021.

The instrument of the embodiment can be provided with 3 mutual inductors, the mutual inductors are in mA level measurement and 0.2 level precision measurement, and are connected with the measurement control module through plugs; the casing material of the mutual inductor is UP or PC, and the measurement and control box material is PC plastic.

The invention provides a zero sequence box 6 of a high-performance combination instrument, as shown in fig. 18, the zero sequence box 6 comprises a bottom plate 601, a side plate 602 and a plurality of vertical baffle plates 603. The middle part of each vertical baffle 603 is provided with a through groove 6031 for the bus bar 401 of the outlet end of the switch to pass through. The side plate 602 and the plurality of vertical baffles 603 are fixed on the bottom plate 601, the plurality of vertical baffles 603 are arranged in parallel, and the end parts of the same side of all the vertical baffles 603 are fixed on the side plate 602.

Vertical clamping strips 604 are arranged on opposite side walls of two adjacent vertical baffles 603, and every four vertical clamping strips 604 are used as a group. The end of at least one group of two adjacent vertical baffles 603 is provided with a clamping groove 6032. The catch 6032 is a female groove. The vertical baffle plates 603 are three, the end parts of two adjacent vertical baffle plates 603 are provided with clamping grooves 6032, and the end part of the other vertical baffle plate is provided with a clamping head 6033. The clamping groove is a concave groove, and the clamping head is a convex clamping head.

When the zero sequence box 6 needs to be installed on the left side of the transformer box 2, the detachable baffle plate 203 can be installed on the right side of the transformer box 2, the clamping groove 6032 of the zero sequence box 6 is directly clamped in the clamping head 2022 on the left side of the transformer box 2, and the N phase of the switch penetrates through the zero sequence box 6 to form a fixed whole. When the zero sequence box 6 needs to be installed on the right side of the transformer box 2, the detachable baffle plate 203 can be installed on the left side of the transformer box 2, the zero sequence box 6 is directly clamped in the clamping head 2022 on the right side of the transformer box 2, and the N phase penetrates through the zero sequence box 6 to form a fixed whole. When fire monitoring is not needed, the zero sequence transformer 8 at the lower part of the transformer box 2 can be taken out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A high-performance combination instrument is characterized by comprising a display unit for displaying monitoring data, a mutual inductor box for collecting data of a switch and a measurement control module for processing the data, wherein the mutual inductor box is detachably connected with the measurement control module, the display unit is connected with the measurement control module through a cable, a through groove is formed in the mutual inductor box, and the mutual inductor box is assembled on a switch outlet end needing to be measured through the through groove;

the instrument further comprises a temperature detection unit, the temperature detection unit comprises a temperature control box, a temperature control box end cover, an insertion plate and a base, the temperature control box is composed of a bottom plate and three side plates fixed on the bottom plate, strip-shaped grooves which are mutually communicated are formed in the upper end portions of the three side plates, the temperature control box end cover is provided with the strip-shaped grooves, the temperature control box end cover is detachably connected to the temperature control box, four edges of the insertion plate are respectively clamped in the strip-shaped grooves of the side plates and the temperature control box end cover, and the temperature detection unit is fixed on the zero sequence box through the base; one side of the upper surface of the base is upwards protruded to form a blocking piece, the other side of the upper surface of the base is provided with a clamping tongue, one side of a bottom plate of the temperature control box is inwards sunken to form a groove matched with the blocking piece, and the other side of the bottom plate is provided with a clamping part matched with the clamping tongue.

2. The high-performance combination instrument according to claim 1, wherein the transformer box comprises a bottom plate, a plurality of vertical baffles and a plurality of detachable baffles, a through groove for passing a leading-out terminal of a switch is formed in the middle of each vertical baffle, clamping grooves are formed in the end portions of two sides of each detachable baffle, the vertical baffles are fixed on the bottom plate in parallel, clamping heads matched with the clamping grooves of the detachable baffles are respectively arranged on opposite side walls of the same side of two adjacent vertical baffles, and clamping rings are arranged on the two vertical baffles at two ends of each vertical baffle.

3. The high-performance combination instrument of claim 2, wherein the measurement and control module comprises a measurement and control box, a measurement and control box cover plate, a measurement and control box top plate, a control plate, a power supply plate and a main control plate, the measurement and control box is composed of a bottom plate and three side plates fixed on the bottom plate, the measurement and control box cover plate is connected with the measurement and control box to form a containing cavity, the control plate, the power supply plate and the main control plate are arranged in the containing cavity, the measurement and control box top plate covers the containing cavity, a convex hull is arranged on the outer surface of the measurement and control box cover plate, a convex hull is arranged on the outer surface of the side plate of the measurement and control box right opposite to the measurement and control box cover plate, and the measurement and control module and the transformer box are fixed.

4. The high-performance combination instrument according to claim 2, further comprising a zero sequence box, wherein the zero sequence box comprises a bottom plate, a side plate and a plurality of vertical baffle plates, a through groove for passing the outlet end of the switch is formed in the middle of each vertical baffle plate, the side plate and the vertical baffle plates are fixed on the bottom plate, the vertical baffle plates are arranged in parallel, the end part of the common side of all the vertical baffle plates is fixed on the side plate, the end parts of at least one group of two adjacent vertical baffle plates are provided with clamping grooves, and the clamping grooves of the zero sequence box are connected with clamping heads of the mutual inductor box.