A kind of power capacitor compensation device shell
Technical field
The present invention relates to a kind of power capacitor compensation device shells in reactive compensation field.
Background technique
With quickly propelling for national urbanization process, a large amount of people such as inhabitation building, luxury stores, hotel, office
It is rised sheer from level ground in city with building, urban power consumption also rapid growth therewith.But it is more used in these civil buildings fields
For single-phase inductive load, cause low voltage electric network power factor seriously relatively low, reactive power line loss is seriously bigger than normal.This and state
The policy of " energy-saving and emission-reduction, environmentally protective " before family belongings is incompatible.It is to improve power quality, excavate electricity using reactive compensation
Net potentiality reduce the effective method of line loss.
The generally existing electric energy of reactive power problem " hair, it is defeated, become, match, with " in five links, power system stability is transported
Row generates many adverse effects.Low-voltage power distribution station area reactive power compensator is based on the compensation of centralized intelligence capacitor group, by intelligence
Energy capacitance group connects in distribution transformer low-voltage bus bar side, according to the throwing of the Reactive Power Control intelligent capacitor group on low-voltage bus bar
It cuts, compensating power, improves to become and match utilization rate, while playing barrier action, prevent reactive power from swarming into upper level power grid and make
At voltage fluctuation, network loss is reduced.
Authorization Notice No. is that the patent of CN206422388 discloses a kind of intelligent capacitor compensation suitable for bus connection
Crust of the device structure, the shell are prolate cube, and display mounting hole is formed with before shell, is formed with behind shell
Two communication interfaces, are fixedly mounted with bus-type fuse behind shell, and capacitor is not only increased with being fixedly connected for feature board
The cost and difficulty of installation, and the stability of electric capacitor compensation device is affected, it is also not easy to repair.
Summary of the invention
In order to solve above-mentioned technical problem of the existing technology, the present invention provides a kind of at low cost, integrated high electricity
Power power capacitor reactive compensation installation shell carries out modularization dismantling design to electric capacitor compensation device, to capacitor and feature board
Fixed form carries out innovative design, removes the integral support between fixed function plate and capacitor body.
According to electric capacitor compensation device shell provided by the invention, the modularization fixing support rack including capacitor body
With independent capacitor case, the electric capacitor compensation device shell longitudinal medial edge is designed using boss, the electric power
It is designed using card slot Electric capacity compensation device shell tail portion.
Preferably, the modularization fixing support rack of the capacitor body includes ontology circuit board fixing rack, ontology mould
Block three-phase four (three) line connection terminal, ontology modularization miniature circuit breaker support frame, capacitor body shell fixing seat.
It is preferably in any of the above-described scheme, the independent capacitor outer cover is plastic material integrated casing.
It is preferably in any of the above-described scheme, the modularization fixing support rack of the capacitor body provides two kinds of mainboard peaces
Fixed form is filled, that is, uses and is mounted directly and supports installation two ways.
It is preferably in any of the above-described scheme, installs moulding additional above the capacitor body, pass through the moulding
Upper reserved location hole fixes the feature board and the capacitor case.
It is preferably in any of the above-described scheme, three-phase four (three) the line connection terminal is injection molding nut, each alternate connection
Terminal distance is larger.
Be preferably in any of the above-described scheme, the miniature circuit breaker by the moulding of the capacitor body module with
Capacitor body is fixed, and the miniature circuit breaker is installed separately with the feature board.
It being preferably in any of the above-described scheme, the miniature circuit breaker support frame bottom integrates stand-alone shell fixed hole seat,
It is fixedly mounted with the capacitor body outer cover.
It is preferably in any of the above-described scheme, the A phase, C phase biphase current mutual inductor are mounted on tail portion function using horizontal
On energy plate, two phase lines into miniature circuit breaker are transmitted also cross the horizontal piercing formula current transformer on the feature board of tail portion in outside
Acquisition electric current mends capacitor internal altogether and transmits the centre path current for passing through into the B of relay to line and fixing outside plate from miniature circuit breaker
Mutual inductor acquires electric current.
It is preferably in any of the above-described scheme, the electric capacitor compensation device case nose is that plane aperture in oblique angle is set
Meter, inside is using stud to fixed display board.
It is preferably in any of the above-described scheme, housing two sides are provided with the heat dissipation of vertical bar shape outside the electric capacitor compensation device
Slot.
It is preferably in any of the above-described scheme, the capacitor body uses inserted design, is installed on device bottom, together
The detachable bottom case of Shi Caiyong.
It is preferably in any of the above-described scheme, the capacitor body and capacitor outer cover upper cover are fixed.
It is preferably in any of the above-described scheme, the capacitor case front layout includes mainly liquid crystal display, key, refers to
Showing the windows such as lamp, miniature circuit breaker, terminal interface is measured including two RJ45 interfaces, three-phase and four-line interface, foreign current in tail portion,
Left side circular hole is N phase terminal interface.
It is preferably in any of the above-described scheme, the power capacitor control system hardware includes mainboard, feature board and opens
Close plate.
It is preferably in any of the above-described scheme, the module of the capacitor body includes master control display module, terminal supplying power
Conversion and analog signal sampling module, electric current metering sampling module, magnetic latching relay switch module, communication module and electric current are adopted
Collect module.
It is preferably in any of the above-described scheme, the modularization mainboard of the capacitor body is equipped with magnetic latching relay, meter
Measure module, memory module and control module.
It is preferably in any of the above-described scheme, the modular functionality plate of the capacitor body is equipped with 485 communication modules, electricity
Current transformer module, the feature board are perpendicularly fixed at condenser armature tail position.
It is preferably in any of the above-described scheme, is attached between the mainboard and feature board by soft arranging wire.
It is preferably in any of the above-described scheme, the modular switch plate of the capacitor body is vertical in the form of two rows
It is fixed on mainboard.
It is preferably in any of the above-described scheme, on the capacitor body outside moulding control unit circuit board and capacitor
Shell is fixedly mounted.
It is preferably in any of the above-described scheme, uses the shell of the power capacitor compensation device.
It is preferably in any of the above-described scheme, the compensation device of the power capacitor used.
Power capacitor compensation device shell according to the invention significantly improves installation effectiveness, reduces human cost,
It will be designed as modular moulding above capacitor body, feature board and capacitor are carried out by the location hole reserved on moulding
Fixation between device.Meanwhile can also be fixed by way of increasing support on moulding, it is different size feature boards
Installation provides a variety of solutions.Miniature circuit breaker is fixed by the module moulding with capacitor body, moulding bottom
Portion integrates stand-alone shell fixed hole seat, the design that miniature circuit breaker and feature board are installed separately, since miniature circuit breaker is not direct
It is mounted on feature board, causes feature board deformation so as to avoid because of weight extruding, and lead to unstable hidden danger, separate modular
Change design so that installation and maintenance become more convenient, reduce quality risk while improve working efficiency.Tail portion feature board is adopted
It is installed with card slot type, reduces Material Cost brought by conventional stud mounting means, saved installation space.Simultaneously using sleeping
Formula current transformer is welded and is mounted on the feature board of tail portion, outside transmit two phase lines into miniature circuit breaker also cross
Horizontal piercing formula Current Mutual Inductance on the feature board of tail portion acquires current signal.This mode is different from conventional electric power capacitance compensation
Device using current transformer be all installed on miniature circuit breaker outgoing line side by the way of, not only reduce installation space and installation
Difficulty, while also enhancing the stability of electric capacitor compensation device.Therefore a kind of custom power capacitor benefit can be achieved in the present invention
Repay crust of the device, the degree of modularity is higher, and assembly working amount is smaller, further reduced circuit board take up space with hardware at
This, plant maintenance is convenient, and failure rate is lower.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention are invented, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the main view of a preferred embodiment of power capacitor compensation device according to the invention.
Fig. 2 is the side view of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
Fig. 3 is the top view of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
Fig. 4 is the complete machine installation side view of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
Fig. 5 is the complete machine installation rearview of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
Fig. 6 is the live conceptual scheme of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
Fig. 7 is that the hardware capability figure of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention (divides
It mends)
Fig. 8 is the hardware capability figure (mending altogether) of another embodiment of power capacitor compensation device according to the invention.
Fig. 9 is the schematic diagram of internal structure of the embodiment as shown in Figure 1 of power capacitor compensation device according to the invention.
1- indicator light 2- control button 3- heat radiating slot 4- miniature circuit breaker 5-A phase electric power incoming line
6B phase electric power incoming line 7--C phase electric power incoming line 8-N phase incoming line 9- transformer
10 low pressure backbone 11- voltage of power compensation device 12- batch meter 13- service wires
14 user 15- substrate 16- mutual inductor 17-485 communicate 18- feature board 19AC-DC
20- metering module 21- mainboard 22- display module 23- switchboard 24- capacitor group
Four (three) line connection terminal 27- circuit board fixing seat of 25- miniature circuit breaker support frame 26- three-phase
28- shell fixing seat.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve power electronic technique miniaturization, integrated development trend, the present invention compensates power capacitor and fills
Set carry out modularized design.Power capacitor compensation device shell includes modularization moulding and outer cover two on capacitor body
Part.Modularization moulding includes the injection molding nut, location hole corresponding with mainboard and support of three-phase four (three) line connection terminal
Column, the support column for installing miniature circuit breaker.External housing front end is oblique angle plane aperture design, and inside uses four plastics studs
To fixed display board.In order to realize EM equipment module, function segmentation is carried out to the mainboard of capacitor internal.Magnetic keeps relay
Device, metering module, memory module and control module etc. design on mainboard.485 communication modules, current transformer sampling module are set
Meter is on the feature board of tail portion.Modularized design in this way shortens the length of mainboard to reduce miniature circuit breaker pair
The stress of mainboard is oppressed, and mainboard stability and installation convenience are improved.Current transformer is welded on feature board using horizontal,
It is compared to covering in the outlet of miniature circuit breaker for conventional mounting mode, new this mounting means reduces the work of production
Amount and error rate, while space needed for reducing conventional mounting means, so that entire product design is more compact.Tail portion function
Energy plate is designed using card slot type, is fixed under conditions of not using screw to feature board, is reduced Material Cost while mentioning
High installation convenience.It is attached between mainboard and feature board by soft arranging wire.Under the premise of guaranteeing electrical safety, realize
Inner space maximally utilizes.Capacitor body uses inserted design, is installed on device bottom, while using detachable
Bottom case facilitates the installation maintenance and replacement of capacitor body.
Embodiment 1
The present invention relates to a kind of power capacitor compensation device shells, as shown in Figure 1, display portion upper circular hole is instruction
1 position of lamp, display portion lower part circle and square hole are 2 position of control button.As shown in Figures 2 and 4, electric capacitor compensation device
External housing two sides are provided with vertical bar shape heat radiating slot 3, and as shown in Figures 3 and 5, the aperture of housing tail portion upper end 55mm*46mm is installed
Miniature circuit breaker 4, the miniature circuit breaker spacing 18mm oval aperture of 4 aperture rear end three connect micro- for convenience of external power supply inlet wire
Screwdriver, which enters, when type breaker tightens fixing screws.Housing upper rear end is divided from left to right there are three the aperture of 8mm*13mm
Not Wei 7 external power supply inlet wire of A phase 5, B phase 6 and C phase, wherein A, C phase power supply line pass through on aperture and internal card slot on feature board
Enter miniature circuit breaker after current transformer.Housing rear end lower is the rectangular opening of a 60mm*16mm, to give feature board
With two network interfaces of external communication and an instruction lamp connector reserved location, to realize and external communication.Tail portion rectangle is opened
The circular opening of each reserved diameter 10mm in below hole and outer cup shell-side rear, tail portion circular opening, which is used as, divides benefit capacitor
N phase incoming line, side rear circular opening enter for convenience of screwdriver when installation N phase inlet wire 8.Shell is made of plastic material, shell
Body is fixed with capacitor body by four screws of shell side.
As shown in Figures 6 and 7, this intelligent compensation terminal is that four phases point mend compensation device, point benefit optional capacity of capacitor body
For 2.5Kvar-30Kvar, every phase can independent compensation reactive power.Low voltage three-phase four-wire transmission line passes through transformer 9, low pressure
Backbone 10, voltage of power compensation device 11, batch meter 12,13 accessing user 14 of service wire are controlled eventually by miniature circuit breaker
The master switch of end system, miniature open circuit outlet side are kept with magnetic in 8 terminal of integral type capacitor body N line and switchboard respectively
Relay voltage input pin is connected.Mainboard realizes system AC-AC decompression, AC-DC conversion 19, control circuit power supply, AC sampling
Etc. functions, pass through soft arranging wire and tail portion feature board connection communication;Mainboard is completed to hand over metering processing, the switchboard switching control of the number of accepting and believing
The functions such as system, various status indicator lamps control, data store, LCD is shown.Tail portion feature board complete foreign current data sampling and
485 communication functions.
In the present embodiment, shell longitudinal medial edge using boss design, the boss to capacitor body into
Row limit.The shell tail portion is designed using card slot, and the card slot is used for the fixed installation of circuit board.Boss depth 3mm, laterally
Depth 1mm is 1.6mm with side bayonet slot spacing, installs for circuit board.
In the present embodiment, the modularization fixing support rack of the capacitor body includes this circuit board body fixing seat 27, ontology
Modularization three-phase four (three) line connection terminal 26, ontology modularization miniature circuit breaker support frame 25, capacitor body shell are fixed
Seat 28.
In the present embodiment, the independent capacitor outer cover is plastic material integrated casing.
In the present embodiment, the modularization fixing support rack of the capacitor body provides two kinds of mainboards and installs fixation side
Formula uses and is mounted directly and supports installation two ways.
In the present embodiment, moulding is installed additional above the capacitor body, determined by what is reserved on the moulding
The feature board and the capacitor case are fixed in position hole.
In the present embodiment, three-phase four (three) the line connection terminal be injection molding nut, each alternate connection terminal distance compared with
Greatly.
In the present embodiment, moulding and capacitor body that the miniature circuit breaker passes through the capacitor body module
Fixed, the miniature circuit breaker is installed separately with feature board.
In the present embodiment, the miniature circuit breaker support frame bottom integrates stand-alone shell fixed hole seat, with the capacitor
Device ontology outer cover is fixedly mounted.
In the present embodiment, current transformer 16 is mounted on the feature board of tail portion using horizontal, and outside is transmitted into miniature disconnected
Two phase line of A, C of road device acquires electric current also cross the horizontal piercing formula current transformer on the feature board of tail portion.
In the present embodiment, housing front end is oblique angle plane aperture design outside the electric capacitor compensation device, internal
Using stud to fixed display board.
In the present embodiment, housing surrounding is provided with vertical bar shape heat radiating slot 3 outside the electric capacitor compensation device.
In the present embodiment, the capacitor body uses inserted design, is installed on device bottom, while using removable
Unload formula bottom case.
In the present embodiment, the capacitor body and capacitor outside housing upper cover are fixed.
In the present embodiment, capacitor case front layout mainly include liquid crystal display, it is key 2, indicator light 1, micro-
The windows such as type breaker 4, tail portion include two RJ45 interfaces, three-phase and four-line interface, foreign current metering terminal interface, left side
Circular hole is N phase terminal interface.
In the present embodiment, the power capacitor control system hardware includes mainboard 21, feature board 18 and switchboard 23.
In the present embodiment, the module of the capacitor body includes master control display module 22, terminal supplying power conversion and mould
Quasi- signal sampling module, electric current metering sampling module, magnetic latching relay switch module, communication module and current acquisition module.
In the present embodiment, the modularization mainboard 21 of the capacitor body be equipped with magnetic latching relay, metering module 20,
Memory module and control module.
In the present embodiment, the modular functionality plate of the capacitor body is equipped with 485 communication modules 17, current transformer
Module, the feature board 18 are perpendicularly fixed at condenser armature tail position.
In the present embodiment, it is attached between the mainboard and feature board by soft arranging wire.
In the present embodiment, the modular switch plate of the capacitor body is vertically fixed on mainboard in the form of two rows
On.
In the present embodiment, moulding control unit circuit board and the fixed peace of capacitor case on the capacitor body
Dress.
In the present embodiment, the shell of the power capacitor compensation device is used.
In the present embodiment, the compensation device of the power capacitor is used.
Embodiment 2
As seen in figs. 6 and 8, this intelligent compensation terminal is three-phase compensation compensation device, mends the optional capacity of capacitor body altogether and is
2.5Kvar-40Kvar every phase can independent compensation reactive power.It is installed in the complete cabinet of distribute-electricity transformer district, is formed by load proportion
The centralized compensation of reactive power inside low voltage electric network, control system hardware includes mainboard 21, feature board 18 and switchboard 23.Its
In, the switchboard for capacitor switching is vertically fixed on mainboard in the form of two rows, and feature board is perpendicularly fixed at electricity again
Container panel tail position guarantees maximally utilizing for space.Meanwhile forceful electric power and weak electric signal are laid out respectively two before and after mainboard
Side pays attention to guaranteeing safe distance.
Embodiment 3
As seen in fig. 4 and 9, terminal enclosure is divided into black moulding and upper capacitor cover on capacitor body.Capacitor body
It is fixed with upper capacitor cover by capacitor surrounding screw, black moulding is fixedly mounted by increasing copper post support on ontology
Control unit circuit board and capacitor.Outer casing frontispiece layout mainly includes liquid crystal display, key 2, indicator light 1, miniature open circuit
The windows such as device 4, tail portion include two RJ45 interfaces, three-phase and four-line interface, foreign current metering terminal interface, and left side circular hole is
N phase terminal interface.Perpendicular row bar shape trench hole is opened in upper cover two sides, guarantees capacitor heat dissipation.Upper cover (long * wide * high) overall size is
345mm*78mm*100mm is mounted directly above capacitor body, since installation space limits, intelligent electric power Electric capacity compensation device
Shell realizes circulation cooling using two sides fluting heat dissipation design mode, using the temperature difference of itself and outside air, enhances interior outer space
Conduction effect brought by gas convection current.Meanwhile terminal inner is equipped with excess temperature overvoltage crowbar, carries out to capacitor temperature real-time
Monitoring, it is ensured that the reliability service of device improves the safety of device.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is to illustrate this hair
Bright principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variations
It all fall within the protetion scope of the claimed invention with improvement.The claimed scope of the invention is by paid claims and its waits
Effect object defines.