CN109347339A - DC transformer - Google Patents
DC transformer Download PDFInfo
- Publication number
- CN109347339A CN109347339A CN201811380852.2A CN201811380852A CN109347339A CN 109347339 A CN109347339 A CN 109347339A CN 201811380852 A CN201811380852 A CN 201811380852A CN 109347339 A CN109347339 A CN 109347339A
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- Prior art keywords
- connector
- connect
- controllable tube
- charging
- contactor
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- 239000003990 capacitor Substances 0.000 claims description 81
- 238000010521 absorption reaction Methods 0.000 claims description 54
- 230000001012 protector Effects 0.000 claims description 21
- 230000007935 neutral effect Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 64
- 229910052802 copper Inorganic materials 0.000 description 64
- 239000010949 copper Substances 0.000 description 64
- 238000010586 diagram Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of DC transformers, comprising: charging main contactor, electric discharge main contactor, the first controllable tube, the second controllable tube, the first support frame, the first connector, the second connector, third connector and radiator；First controllable tube and the second controllable tube are mounted on radiator microswitch；Charging main contactor and electric discharge main contactor are mounted on the first support frame, and the first connector, the second connector and third connector are installed through on the first support frame, and the first support frame is installed on radiator；The first end of main contactor that charges and the first end for the main contactor that discharges are connect with the first end of the first connector, and the second end of the first connector is connected to the positive output end of external power grid；Charging main contactor second end is connect with the first end of the second connector, and electric discharge main contactor second end is connect with the first end of third connector, and the second end of the second connector and the second end of third connector are connect with the first end of the first controllable tube.
Description
Technical field
The present invention relates to power supply technique field more particularly to a kind of DC transformers.
Background technique
In rail vehicle, energy-storage system includes DC transformer, super capacitor group and control unit, is there is ground confession
In the case that electric installation or power grid are powered, traction invertor is powered by floor power supply device or power grid, while passing through DC conversion
Device charges to super capacitor group；In the case where no floor power supply device or power grid, DC transformer is passed through by super capacitor group
For traction invertor power supply.
DC transformer include: insulated gate bipolar transistor (Insulated Gate Bipolar Transistor,
Abbreviation IGBT), IGBT radiator, IGBT drive circuit plate, surging capacitor, IGBT busbar, Support Capacitor, discharge resistance and connect
Tentaculum, wherein the major loop of IGBT, IGBT busbar and contactor composition DC transformer, Support Capacitor, surging capacitor are for inhaling
Current fluctuation is received, discharge resistance is used for current limliting.Existing DC transformer using distributing arrange, by IGBT, IGBT radiator,
The integrated arrangement of IGBT drive circuit plate, or by IGBT, IGBT radiator, IGBT drive circuit plate, IGBT busbar and surging
Capacitor is integrated, and Support Capacitor, discharge resistance and contactor then dispersed placement.
Due to only some components centralized arrangement in DC transformer, such as: IGBT, IGBT radiator, IGBT driving electricity
Road plate, and remainder but is distributed in cabinet everywhere not with IGBT centralized arrangement, such as: Support Capacitor, discharge resistance with
And contactor.The arrangement of the existing each component of DC transformer is easy to cause the line between above-mentioned each device cumbersome,
In turn result in DC transformer failure.
Summary of the invention
The present invention provides a kind of DC transformer, it is intended to which the arrangement for solving each component of existing DC transformer is easy
Cause the line between above-mentioned each device cumbersome, in turn results in the technical issues of DC transformer breaks down.
In order to realize that the above problem, the present invention provide a kind of DC transformer, comprising: charging main contactor, electric discharge master connect
Tentaculum, the first controllable tube, the second controllable tube, the first support frame, the first connector, the second connector, third connector and dissipate
Hot device；The second end of first controllable tube is connect with the first end of the second controllable tube, the second end of the first controllable tube be used for it is super
The anode connection of capacitor, the second end of the second controllable tube is used to connect with the cathode of super capacitor and the negative output with external power grid
End connection；First controllable tube and the second controllable tube are mounted on the mounting surface of radiator, so that radiator is to the first controllable tube
Radiating treatment is carried out with the second controllable tube；Charging main contactor and the main contactor that discharges are mounted on the mounting surface of the first support frame
On, the first connector, the second connector and third connector are installed through on the first support frame, the installation of the first support frame
In on the mounting surface of radiator；Charge main contactor first end and electric discharge main contactor first end with the first connector
First end connection, the second end of the first connector are used to be connected to the positive output end of external power grid；Charge main contactor second end with
The first end of second connector connects, and electric discharge main contactor second end is connect with the first end of third connector, the second connector
Second end and the second end of third connector connect with the first end of the first controllable tube.
In a kind of DC transformer provided by the invention, be provided with charging main contactor, electric discharge main contactor, first can
Keyholed back plate, the second controllable tube, the first support frame, the first connector, the second connector, third connector and radiator.Charging master
Contactor and electric discharge main contactor are located on the mounting surface of the first support frame, on the one hand can reduce the volume of DC transformer,
On the other hand, charging main contactor and electric discharge main contactor are equipped with by arc-extinguish chamber, can cause first to avoid during arc extinguishing
Controllable tube and the damage of the second controllable tube.In addition, the first connector, the second connector and third connector are installed through
On first support frame, can make positioned at the mounting surface side of the first support frame the first controllable tube and the second controllable tube be located at the
The charging main contactor of the mounting surface other side of one support frame and electric discharge main contactor by the first connector, the second connector with
And the connection of third connector, realize DC transformer function.
Optionally, further includes: busbar；Busbar includes: the anode layer for stacking gradually placement, neutral line and negative electrode layer；And
Busbar is located at the top of the first controllable tube and the second controllable tube；The second end of first controllable tube and the first end of the second controllable tube are equal
It is connect with neutral line, neutral line is used to connect with the anode of super capacitor, and the second end of the second controllable tube is connect with negative electrode layer, is born
Pole layer with the cathode of super capacitor for connecting and connecting with the negative output terminal of external power grid；The first end of first controllable tube with just
Pole layer connection, the second end of the second connector are connect with anode layer with the second end of third connector.
In a kind of DC transformer provided by the invention, it is additionally provided with busbar, busbar includes stacking gradually placement just
Pole layer, neutral line and negative electrode layer, so that the first controllable tube, the second controllable tube, the second connector and third connector can be with
It is realized and is connected with each other by busbar, can connected by neutral line in busbar and negative electrode layer and extraneous super capacitor and external power grid
It connects, can simplify the structure of copper bar between the first controllable tube, the second controllable tube, the second connector and third connector, it can also
Simplify DC transformer and extraneous connecting line.
Optionally, further includes: top cover；Top cover is installed on the mounting surface of the first support frame, is run through on top cover and is equipped with: the
Four connectors, the 5th connector and the 6th connector；The first end of 4th connector is connect with the second end of the first connector,
The second end of 4th connector with external power grid positive output end for connecting；The first end of 5th connector is connect with neutral line, the
The second end of five connectors is used to connect with the anode of super capacitor；The first end of 6th connector is connect with negative electrode layer, and the 6th
Cathode of the second end of connector for super capacitor is connected and is connect with the negative output terminal of external power grid.
It further include the 4th connector, the 5th connector, the 6th connector in a kind of DC transformer provided by the invention
And top cover, the space that radiator, top cover and the first supporting surface are constituted can protect the first controllable tube on radiator
With the second controllable tube, the 4th connector, the 5th connector, the 6th connector are connect with external power grid and super capacitor, are realized to the
The encapsulation of one controllable tube and the second controllable tube.
Optionally, it also extends through and is equipped on top cover: the 7th connector and the 8th connector；The first end of 7th connector
It connect with the second end of two connectors and is connect with the second end of third connector, the second end of the 7th connector is used for and electricity
The first end of sense connects；The first end of 8th connector is connect with anode layer, and the second end of the 8th connector is used for and inductance
Second end connection.
In a kind of DC transformer provided by the invention, it is additionally provided with the 7th connector and the 8th connector, the 7th
Connector is connect with the second connector and third connector, and the 8th connector is connect with anode layer, and DC transformer may be implemented
Access inductance, to limit the operating current in the DC transformer course of work.
Optionally, further includes: discharge resistance, spike capacitor and surging capacitor；Discharge resistance is located at the installation of radiator
On face, the first end of discharge resistance is connect with anode layer, and the second end of discharge resistance is connect with negative electrode layer；Spike capacitor is located at mother
Row top, the first end of spike capacitor are connect with anode layer, and the second end of spike capacitor is connect with negative electrode layer；Surging capacitor is located at
Above busbar, the first end of surging capacitor is connect with anode layer, and the second end of surging capacitor is connect with negative electrode layer.
It further include discharge resistance, the spike capacitor above busbar in a kind of DC transformer provided by the invention
And surging capacitor, one side discharge resistance, spike capacitor and surging capacitor are convenient to be connect with busbar, on the other hand, electric discharge
Resistance, spike capacitor and surging capacitor are located at the space that radiator, top cover and the first supporting surface are constituted, and realize electric discharge electricity
Resistance, spike capacitor and the encapsulation of surging capacitor, simplify connection relationship between the internal components of DC transformer.
Optionally, further includes: absorption resistance, absorption diode and electric discharge auxiliary contactor；Absorption resistance, absorption diode
And electric discharge auxiliary contactor is arranged on the mounting surface of radiator；The first end of the first end of absorption resistance and the 7th connector
Connection, the second end of absorption resistance and the cathode of absorption diode connect, anode and the electric discharge auxiliary contactor of absorption diode
First end connection, the second end for the auxiliary contactor that discharges is connect with the first end of the 8th connector, to realize the spike of absorption inductor
Electric current.
In a kind of DC transformer provided by the invention, further includes absorption resistance on radiator, absorbs two poles
Pipe and electric discharge auxiliary contactor, on the one hand can be to absorption resistance, absorption diode and electric discharge auxiliary contactor heat dissipation, another party
Realize that the encapsulation to absorption resistance, absorption diode and the auxiliary contactor that discharges is arranged in face.
Optionally, further includes: charging auxiliary contactor and charging resistor；Charging auxiliary contactor and charging resistor are mounted on scattered
On the mounting surface of hot device；The first end of charging auxiliary contactor is connect with the first end of the first connector, and the of the auxiliary contactor that charges
The connection of the first end of two ends and charging resistor, the second end of charging resistor are connect with the first end of the 7th connector, outer to realize
Power grid passes through charging auxiliary contactor, charging resistor and inductance to spike capacitor charging.
It further include the auxiliary contact of charging being placed on the mounting surface of radiator in a kind of DC transformer provided by the invention
Device and charging resistor, on the one hand using charging auxiliary contactor and charging resistor to spike capacitor charging so that spike capacitor with put
It is shaken between resistance, absorbs the electric current of external power grid input.On the other hand the integrated arrangement of DC transformer may be implemented,
Simplify connection relationship between the internal components of DC transformer.
Optionally, further includes: protector and microswitch；Protector and microswitch are installed on the upper of the first controllable tube
Side, the first end of protector are connect with neutral line, and the second end of protector and the first end of microswitch connect, microswitch
Second end is connect with the first end of the 5th connector, with realize when the output end current of DC transformer be greater than predetermined current when by
Protector disconnects DC transformer, and sends cut-off signal by microswitch.
It further include protector and the fine motion being placed in above the first controllable tube in a kind of DC transformer provided by the invention
Switch, on the one hand may be implemented the overcurrent protection to DC transformer, while the integrated arrangement of DC transformer may be implemented, letter
Change connection relationship between the internal components of DC transformer.
Optionally, further includes: the first current sensor and the second current sensor；First current sensor and the second electric current
Sensor is installed on the mounting surface of top cover；The first end of first current sensor and the second end of microswitch connect, and first
The second end of current sensor is connect with the first end of the 5th connector, to realize the output electric current measure to DC transformer；
The first end of second current sensor is connect with the first end of the 8th connector, the second end and anode layer of the second current sensor
Connection, to realize to the first controllable tube current detecting of inflow.
It further include that the first electric current being installed on the mounting surface of top cover passes in a kind of DC transformer provided by the invention
On the one hand sensor and the second current sensor can monitor the electric current of DC transformer, on the other hand reduce DC transformer
Volume realizes the integrated arrangement of DC transformer, simplifies connection relationship between the internal components of DC transformer, improves direct current and becomes
Flow the reliability of device.
Optionally, further includes: the second support frame, main driving plate and auxiliary driving plate；Run through on top cover and socket is installed；Second
Support frame is installed on the mounting surface of radiator, and main driving plate is located on the second support frame, and auxiliary driving plate is located at the peace of radiator
On dress face, the output end of main driving plate is connect with the input terminal of auxiliary driving plate, and the first output end of auxiliary driving plate and first is controllably
The control terminal of pipe connects, and the second output terminal of auxiliary driving plate is connect with the control terminal of the second controllable tube, the input terminal of main driving plate
It is connect with socket, socket with peripheral control unit for connecting, to realize reception external control signal.
It further include the second support frame, main driving plate and auxiliary driving plate in a kind of DC transformer provided by the invention, it will
Main driving plate is placed on the second support frame, is on the one hand avoided continuing the mask placement device on the first controllable tube, is influenced to radiate, another party
Face can simplify the connection relationship between main driving plate, auxiliary driving plate and controllable tube, improve the reliability of DC transformer.
In a kind of DC transformer provided by the invention, be provided with charging main contactor, electric discharge main contactor, first can
Keyholed back plate, the second controllable tube, the first support frame, the first connector, the second connector, third connector and radiator.Charging master
Contactor and electric discharge main contactor are located on the mounting surface of the first support frame, on the one hand can reduce the volume of DC transformer,
On the other hand, charging main contactor and electric discharge main contactor are equipped with by arc-extinguish chamber, can cause first to avoid during arc extinguishing
Controllable tube and the damage of the second controllable tube.In addition, the first connector, the second connector and third connector are installed through
On first support frame, can make positioned at the mounting surface side of the first support frame the first controllable tube and the second controllable tube be located at the
The charging main contactor of the mounting surface other side of one support frame and electric discharge main contactor by the first connector, the second connector with
And the connection of third connector, realize DC transformer function.
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 this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the circuit diagram of present invention DC transformer shown according to an exemplary embodiment；
Fig. 2 is device arrangements schematic diagram on radiator in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1；
Fig. 3 is the structural schematic diagram of part of devices in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1；
Fig. 4 is the structural schematic diagram of copper bar in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1；
Fig. 5 is the main view of the DC transformer provided the present invention is based on embodiment illustrated in fig. 1；
Fig. 6 is the structural schematic diagram of part of devices in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1；
Fig. 7 is the structural schematic diagram of top cover in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of DC transformer, it is intended to which the arrangement for solving each component of existing DC transformer is easy
Cause the line between above-mentioned each device cumbersome, in turn results in the technical issues of DC transformer breaks down.
Fig. 1 is the circuit diagram of present invention DC transformer shown according to an exemplary embodiment, as shown in Figure 1, this reality
The DC transformer for applying example offer includes the first controllable tube Q1, the second controllable tube Q2, charging main contactor KM1, discharge diode
VD2 and electric discharge main contactor KM3.Wherein, the second end of the first controllable tube Q1 is connect with the first end of the second controllable tube pipe Q2,
The first end of first controllable tube Q1 is connect with the first end of charging main contactor KM1, the first end and electric discharge of the first controllable tube Q1
The first end of main contactor KM3 connects, and the second end of electric discharge main contactor KM3 is connect with the first end of discharge diode VD2, fills
The second end of electric main contactor KM1 is connect with the second end of discharge diode VD2, and is connect with the anode of external power grid.Second can
The second end of keyholed back plate Q2 is used to connect the cathode of super capacitor, and the negative output terminal for connecting external power grid.
When charging to super capacitor, charging main contactor KM1 closure so that external power grid by DC transformer with it is super
Capacitor is connected, and realizes charging.When charging to super capacitor, charging main contactor KM1 is disconnected, electric discharge main contactor KM3 closure,
So that external power grid is connected by DC transformer and super capacitor, electric discharge is realized.
DC transformer provided by the invention further include: the first spike capacitor C1, the second spike capacitor C2, discharge resistance
R3, the first charging resistor R1, the second charging resistor R2 and charging auxiliary contactor KM2.Wherein, the of auxiliary contactor KM2 is charged
One end connect with the second end of charging main contactor KM1, and the of second end and the first charging resistor R1 of the auxiliary contactor KM2 that charges
One end connection, and connect with the first end of the second charging resistor R3, the second end and the second charging resistor of the first charging resistor R1
The second end of R3 is connect with the first end of charging main contactor KM1.
Connect charging main contactor KM1 perhaps discharge realize before main contactor KM3 charge to super capacitor or
Before super capacitor electric discharge, closure charging auxiliary contactor KM2 makes external power grid pass through charging auxiliary contactor KM2, the first charging resistor
R1, the second charging resistor R2 charge to the first spike capacitor C1 and the second spike capacitor C2.After charging, charging master is connected
Contactor KM1 or electric discharge main contactor KM3, so that external power grid is connected by DC transformer and super capacitor.First spike
Capacitor C1 and the second spike capacitor C2 and discharge resistance R3 constitutes RC oscillating circuit, to realize external network voltage ripple suppression
System.
DC transformer provided by the invention further include: absorption resistance R4, absorption diode VD2 and electric discharge auxiliary contactor
KM7.Wherein, the second end of absorption resistance R4 with charging main contactor KM1 first end connect, the first end of absorption resistance R4 and
The cathode of absorption diode VD2 connects, and the anode of absorption diode VD2 is connect with the first end of electric discharge auxiliary contactor KM7, discharges
The second end of auxiliary contactor KM7 is connect with the first end of the first controllable tube.First end in the first controllable tube and main contact of charging
Inductance L is connected between the first end of device KM1.
Limit is realized by the inductance being arranged between the first end of the first controllable tube and the first end for the main contactor KM1 that charges
The electric current of DC transformer, plays a protective role during super capacitor charge or discharge processed.In addition, in parallel with inductance L
By absorption resistance R4, absorption diode VD2 and the absorption circuit of the auxiliary contactor KM7 that discharges constituted, can be absorbed on inductance L
The electric energy of storage.
DC transformer provided by the invention further include: the first current sensor SC1, the second current sensor SC2, protection
Device FU and microswitch K.Wherein, the first current sensor SC1 is connected to external power grid positive output end and the first controllable tube Q1
Between first end, the second current sensor SC2, protector FU and microswitch K branch in series are connected to first can
Between the second end of keyholed back plate Q1 and the anode of super capacitor.First current sensor SC1, the second current sensor SC2 are for real
Now to the monitoring of DC transformer electric current, protector FU is used to disconnect electricity when DC transformer output end current is greater than preset value
Road, and cut-off signal is sent by microswitch K.
Fig. 2 is device arrangements schematic diagram on radiator in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1,
As shown in Fig. 2, DC transformer provided by the invention in addition to include the first controllable tube Q1, the second controllable tube Q2, auxiliary driving plate FD,
Discharge resistance R3, charging auxiliary contactor KM2, charging resistor R1, R2, absorption resistance R4, absorption diode VD2, discharge diode
Except VD1 and electric discharge auxiliary contactor KM7, further includes: radiator S.Wherein, the first controllable tube Q1 and the second controllable tube Q2 are adjacent
Arrangement, and it is mounted on one side of the mounting surface of radiator S, so that radiator S is to the first controllable tube Q1 and the second controllable tube Q2
Carry out radiating treatment.Auxiliary driving plate FD and discharge resistance R3 is located on the mounting surface of radiator, and is close to the first controllable tube Q1
It is arranged with the second controllable tube Q2.Charging auxiliary contactor KM2 and charging resistor R1, R2 are adjacently positioned, and are mounted on radiator S's
The another side of mounting surface.Absorption resistance R4, absorption diode VD2 and electric discharge auxiliary contactor KM7 are adjacently positioned, and are arranged in
The another side of the mounting surface of radiator.In addition, being provided with discharge diode VD1 near absorption resistance R4.Radiator S uses two
Side arrangement avoids heating device concentration from causing heat dissipation effect bad, by the device centralized arrangement with direct connection relational,
Such as: absorption resistance R4, absorption diode VD2 and electric discharge auxiliary contactor KM7, or charging auxiliary contactor KM2 and charging electricity
Resistance R1, R2 are adjacently positioned, and can simplify the structure of copper bar between device.
Fig. 3 is the structural schematic diagram of part of devices in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1, such as
Shown in Fig. 3, DC transformer provided in this embodiment further include: charging main contactor KM1, electric discharge main contactor KM3, first connect
Connector J1, the second connector J2, third connector J3 and the first support frame Z1.Wherein, charging main contactor KM1 and electric discharge master
Contactor KM3 is mounted on the mounting surface of the first support frame Z1, the first connector J1, the second connector J2 and third connection
Head J3 is installed through on the first support frame Z1, and the first support frame Z1 is installed on the mounting surface of radiator, and preferably first
Support Z1 is installed vertically on the mounting surface of radiator, can increase by radiator and the first supporting framework at installation space, subtract
The volume of small DC transformer.First connector J1, the second connector J2 and third connector J3 structure are identical, by from introversion
Outer coaxially arranged internal layer and outer layer are constituted, and inside is conductive material, and outer layer is insulating materials.First connector J1, second connect
Connector J2 and third connector J3 are installed through on the first support frame Z1, to realize between the first support frame two sides device
Electrical connection.
Fig. 4 is the structural schematic diagram of copper bar in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1, such as Fig. 4
Shown, the second end of absorption resistance R4 is connect by No. 13 copper bar T013 with the cathode of absorption diode VD2, absorption diode
The anode of VD2 is connect by No. 6 copper bar T006 with the first end of electric discharge auxiliary contactor KM7.The first end of absorption resistance R4 passes through
No. 12 copper bar T012 are connected to No. 11 copper bars T011, No. 11 copper bar T011 and pass through the second connector J2 and charging main contactor KM1
Second end connection, with realize absorption resistance R4 with charge main contactor KM1 second end connect, and then realization by absorption resistance
The second end of R4, absorption diode VD2 and the branch for discharging auxiliary contactor KM7 in series and charging main contactor KM1 connect
It connects.
Fig. 5 is the main view of the DC transformer provided the present invention is based on embodiment illustrated in fig. 1, as shown in figure 5, this implementation
The DC transformer that example provides further includes top cover, and top cover is installed on the mounting surface of the first support frame Z1, through installation on top cover
There are the 4th connector J4, the 5th connector J5, the 6th connector J6, the 7th connector J7, the 8th connector J8 and socket.Its
In, the second end of electric discharge auxiliary contactor KM7 is connect with No. 5 copper bar T005, and No. 5 copper bar T005 are connected to the of the 8th connector J8
One end, the second end of the 8th connector J8 with the second end of inductance for connecting.No. 11 copper bar T011 and the 7th connector J7 connect
It connects, the 7th connector J7 with the first end of inductance for connecting.To realize by absorption resistance R4, absorption diode VD2 and put
Branch electric auxiliary contactor KM7 in series is connect with inductance in parallel.It, can be by by absorbing when being stored with energy in inductance
Resistance R4, absorption diode VD2 and branch auxiliary contactor KM7 in series that discharges constitute circuit, release energy.
With continued reference to Fig. 3, the first end for the main contactor KM1 that charges and the first end of electric discharge main contactor KM3 pass through No. 8
Copper bar T008 is connect with the first end of the first connector J1, and the second end of charging main contactor KM1 passes through 14-1 copper bar T014-
1 connect with the first end of the second connector J2, and electric discharge main contactor KM3 second end is connected by 14-3 copper bar T014-3 and third
The first end of connector J3 connects.
Fig. 6 is the structural schematic diagram of part of devices in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1, such as
Shown in Fig. 6, the second end of the first connector J1 is connected to the positive output end of external power grid, the second connector by No. 9 copper bar T009
The second end of J2 is connect by No. 11 copper bar T011 with discharge diode VD1 cathode, and the second end of third connector J3 passes through 10
Number copper bar T010 is connect with the anode of discharge diode VD1.To realize that electric discharge main contactor KM3 connects with discharge diode VD1
It is in parallel with charging main contactor KM1 afterwards, and realize the connection of the positive output end and DC transformer of external power grid.
With continued reference to Fig. 3, DC transformer provided in this embodiment further include: the second support plate Z2, main driving plate ZD, mother
Arrange M, surging capacitor C4 and spike capacitor C1, C2.Wherein, the second support frame Z2 is installed on the mounting surface of radiator S, preferably
Second support frame Z2 is installed vertically on the mounting surface of radiator S, and main driving plate ZD is located on the second support frame Z2, main driving plate
The output end of ZD is connect with the input terminal of auxiliary driving plate FD, the control of the first output end of auxiliary driving plate FD and the first controllable tube Q1
End connection, the second output terminal of auxiliary driving plate FD connect with the control terminal of the second controllable tube Q2, the input terminal of main driving plate ZD and
Socket connection on top cover, socket with peripheral control unit for connecting, to realize reception external control signal.
With continued reference to Fig. 3, busbar M includes: the anode layer for stacking gradually placement, neutral line and negative electrode layer, and busbar M
In the top of the first controllable tube and the second controllable tube.Surging capacitor C4 and spike capacitor C1, C2 are located at the top of busbar.First
The second end of controllable tube and the first end of the second controllable tube are connect with neutral line, and the second end and negative electrode layer of the second controllable tube connect
It connects, the first end of the first controllable tube is connect with anode layer.The first end of discharge resistance R3 is connect with anode layer, discharge resistance R3's
Second end is connect with negative electrode layer, and the first end of spike capacitor C1, C2 are connect with anode layer, the second end of spike capacitor C1, C2 with
Negative electrode layer connection, the first end of surging capacitor C4 are connect with anode layer, and the second end of surging capacitor C4 is connect with negative electrode layer.
Fig. 7 is the structural schematic diagram of top cover in the DC transformer provided the present invention is based on embodiment illustrated in fig. 1, such as Fig. 7
It is shown, 4-1 copper bar T004-1 and 4-2 copper bar T004-2, No. 5 copper bar T005 and 4-1 copper bar are provided on top cover
T004-1 connection, 4-1 copper bar T004-1 are simultaneously connect with No. 1 copper bar T001, and No. 1 copper bar T001 is connected to the anode layer of busbar,
To realize that absorption resistance R4, absorption diode VD2 and electric discharge auxiliary contactor KM7 are connect by No. 5 copper bar T005 with anode layer,
And then it is connect with the first end of the first controllable tube Q1.
As shown in fig. 6, the first end of charging auxiliary contactor KM2 connects No. 9 copper bar T009, to realize charging auxiliary contactor
The connection of KM2 and the first connector J1, No. 9 copper bar T009 are directly connect with the 4th connector J4, to realize charging auxiliary contactor
KM2 is connect by the 4th connector J4 with external power grid positive output end, and realizes charging main contactor KM1 and electric discharge main contactor
KM3 is connected to external power grid positive output end by the first connector J1 and the 4th connector J4.
It is connected with No. 7 copper bar T007 with charging resistor R1 and R2 with continued reference to the second end of Fig. 4, the auxiliary contactor KM2 that charges,
Copper bar T007 and charging resistor R1 and R2 are connected, so that copper bar T007 is played connection charging resistor R1 and R2, and two are charged
Resistance R1 and R2 connects with charging auxiliary contactor KM2.Charging resistor R1 is in parallel by No. 12 copper bar T012 progress with the other end of R2,
And connect with discharge diode VD1 cathode, to realize that it is same that charging auxiliary contactor KM2 with two charging resistors R1, R2 is constituted branch
The main contactor KM1 that charges is in parallel, in turn, realizes that external power grid passes through charging auxiliary contactor KM2, charging resistor R1, R2 and electricity
Feel to spike capacitor C1, C2 and charging.
With continued reference to Fig. 5 and Fig. 7, DC transformer provided in this embodiment further includes protector FU and microswitch K,
In, microswitch K and protector FU are placed in above the first controllable tube, the first end and 4-2 copper bar T004-2 of the 5th connector
Connection, 4-2 copper bar T004-2 are connect with No. 3 copper bar T003, and No. 3 copper bar T003 are connect with microswitch K second end, and fine motion is opened
The first end for closing K is connect with the second end of protector FU, and the first end of protector FU is connected to neutral line.To realize that first is controllable
The second end of pipe is connect by protector FU and microswitch K with the 5th connector, and the second end of the 5th connector is used for and surpasses
The anode connection of grade capacitor.Protector FU and microswitch K are set to DC transformer output end, work as DC conversion to realize
DC transformer is disconnected by protector FU when the output end current of device is greater than predetermined current, and is sent by microswitch K and disconnects letter
Number, there is overcurrent to avoid DC transformer.
With continued reference to Fig. 5, the first end of the 6th connector J6 is connect by No. 2 copper bar T002 with negative electrode layer, the 6th connection
Cathode of the second end of head J6 for super capacitor is connected and is connect with the negative output terminal of external power grid.
With continued reference to Fig. 7, the first current sensor SC1 and the second current sensor SC2, the first electricity are installed on top cover
The first end of flow sensor is connect by 4-2 copper bar T004-2 with the second end of microswitch K, and the of the first current sensor
Two ends are connect with the first end of the 5th connector J5, to realize the output electric current measure to DC transformer.Second current sense
The first end of device is connect with the first end of the 8th connector, the second end of the second current sensor by 4-1 copper bar T004-1,
No. 1 copper bar T001 detects electric discharge auxiliary relay KM7 and the first controllable tube Q1 with anode layer, the second current sensor of realization is connected to
Between current detecting.
When charging main contactor KM1 closure, when electric discharge main contactor KM3 is disconnected, external power grid positive output end connects by the 4th
Connector, No. 9 copper bar T009, the first connector J1, No. 8 copper bar T008, charging main contactor KM1,14-1 copper bar T014-1, the
Two connector J2, No. 11 copper bar T011, No. 12 copper bar T012, absorption resistance R4, No. 13 copper bar T013, absorption diode VD2,6
Number copper bar T006, electric discharge auxiliary contactor KM7, No. 5 copper bar T005,4-1 copper bar T004-1, No. 1 copper bar T001 and anode layer
It is connect with the first end of the first controllable tube Q1.
When charging main contactor KM1 is disconnected, and electric discharge main contactor KM3 is closed, external power grid positive output end connects by the 4th
Connector, No. 9 copper bar T009, the first connector J1, No. 8 copper bar T008, electric discharge main contactor KM3,14-1 copper bar T014-3, the
Joint among three members J3, No. 10 copper bar T010, discharge diode VD1, No. 11 copper bar T011, No. 12 copper bar T012, absorption resistance R4,13
Number copper bar T013, absorption diode VD2, No. 6 copper bar T006, electric discharge auxiliary contactor KM7, No. 5 copper bar T005,4-1 copper bars
T004-1, No. 1 copper bar T001 and anode layer are connect with the first end of the first controllable tube Q1.
The second end of first controllable tube Q1 passes through, neutral line, protector, microswitch, No. 3 copper bar T003,4-2 copper bars
T004-2 and the 5th connector are connected to super capacitor anode.
Negative electrode layer is directly connected with external power grid negative output terminal by No. 2 copper bar T002, the 6th connection, and negative with super capacitor
Pole connection.
DC transformer provided in an embodiment of the present invention will be concentrated in addition to electric discharge main contactor and the main contactor that charges
In the space be made of the first support plate, the second support plate, radiator and top cover, by being arranged in the first support plate and top cover
On connector realize DC transformer and external connection, and realize electric discharge main contactor and charge main contactor and DC conversion
The electrical connection of device internal components, avoids electric discharge main contactor and the electric arc that main contactor generates that charges causes shadow to other devices
It rings, integrated DC transformer is conducive to simplify connecting line between device, improves reliability.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of DC transformer characterized by comprising charging main contactor, electric discharge main contactor, the first controllable tube, the
Two controllable tubes, the first support frame, the first connector, the second connector, third connector and radiator；
The second end of first controllable tube is connect with the first end of second controllable tube, the second end of first controllable tube
Connect for the anode with super capacitor, the second end of second controllable tube be used to connect with the cathode of the super capacitor with
And it is connect with the negative output terminal of external power grid；
First controllable tube and second controllable tube are mounted on the mounting surface of the radiator, so that the radiator
Radiating treatment is carried out to first controllable tube and second controllable tube；
The charging main contactor and the electric discharge main contactor are mounted on the mounting surface of first support frame, and described
One connector, second connector and the third connector are installed through on first support frame, and described
One support frame is installed on the mounting surface of the radiator；
The first end of the charging main contactor and the first end of the electric discharge main contactor with first connector the
One end connection, the second end of first connector are used to be connected to the positive output end of the external power grid；
The charging main contactor second end is connect with the first end of second connector, the electric discharge main contactor second end
It is connect with the first end of the third connector, the second end of the second end of second connector and the third connector is equal
It is connect with the first end of first controllable tube.
2. DC transformer according to claim 1, which is characterized in that further include: busbar；
The busbar includes: the anode layer for stacking gradually placement, neutral line and negative electrode layer；And the busbar is located at described first
The top of controllable tube and second controllable tube；
The second end of first controllable tube and the first end of second controllable tube are connect with the neutral line, the neutrality
Anode of the layer for the super capacitor is connect, and the second end of second controllable tube is connect with the negative electrode layer, described negative
Pole layer with the cathode of the super capacitor for connecting and connecting with the negative output terminal of the external power grid；First controllable tube
First end connect with the anode layer, the second end of the second end of second connector and the third connector is and just
Pole layer connection.
3. DC transformer according to claim 2, which is characterized in that further include: top cover；
The top cover is installed on the mounting surface of first support frame,
Run through on the top cover and be equipped with: the 4th connector, the 5th connector and the 6th connector；
The first end of 4th connector is connect with the second end of first connector, the second end of the 4th connector
For being connect with the external power grid positive output end；The first end of 5th connector is connect with the neutral line, and the described 5th
The second end of connector is used to connect with the anode of the super capacitor；The first end of 6th connector and the negative electrode layer
Connection, cathode connection of the second end for the super capacitor of the 6th connector and the negative output with the external power grid
End connection.
4. DC transformer according to claim 3, which is characterized in that also extend through and be equipped on the top cover: the 7th connects
Connector and the 8th connector；
The first end of 7th connector connect with the second end of second connector and with the third connector
Second end connection, the second end of the 7th connector with the first end of inductance for connecting；The first of 8th connector
End is connect with the anode layer, and the second end of the 8th connector with the second end of the inductance for connecting.
5. DC transformer according to claim 4, which is characterized in that further include: discharge resistance, spike capacitor and prominent
Wave capacitor；
The discharge resistance is located on the mounting surface of the radiator, and the first end of the discharge resistance and the anode layer connect
It connects, the second end of the discharge resistance is connect with the negative electrode layer；
The spike capacitor is located above the busbar, and the first end of the spike capacitor is connect with the anode layer, the point
The second end of peak capacitor is connect with the negative electrode layer；
The surging capacitor is located above the busbar, and the first end of the surging capacitor is connect with the anode layer, described prominent
The second end of wave capacitor is connect with the negative electrode layer.
6. DC transformer according to claim 5, which is characterized in that further include: absorption resistance, absorption diode and
Discharge auxiliary contactor；
The absorption resistance, the absorption diode and the electric discharge auxiliary contactor are arranged in the mounting surface of the radiator
On；
The first end of the absorption resistance is connect with the first end of the 7th connector, the second end of the absorption resistance and institute
The cathode connection of absorption diode is stated, the anode of the absorption diode is connect with the first end of the electric discharge auxiliary contactor, institute
The second end for stating electric discharge auxiliary contactor is connect with the first end of the 8th connector, to realize the spike electricity for absorbing the inductance
Stream.
7. DC transformer according to claim 6, which is characterized in that further include: charging auxiliary contactor and charging resistor；
The charging auxiliary contactor and the charging resistor are mounted on the mounting surface of the radiator；
The first end of the charging auxiliary contactor is connect with the first end of first connector, described to charge the of auxiliary contactor
Two ends are connect with the first end of the charging resistor, and the first end of the second end of the charging resistor and the 7th connector connects
It connects, to realize the external power grid by the charging auxiliary contactor, the charging resistor and the inductance to the spike
Capacitor charging.
8. DC transformer according to claim 7, which is characterized in that further include: protector and microswitch；
The protector and the microswitch are installed on the top of first controllable tube, the first end of the protector and institute
Neutral line connection is stated, the second end of the protector is connect with the first end of the microswitch, and the second of the microswitch
End is connect with the first end of the 5th connector, to realize that the output end current when the DC transformer is greater than predetermined current
When the DC transformer disconnected by the protector, and cut-off signal is sent by the microswitch.
9. DC transformer according to claim 8, which is characterized in that further include: the first current sensor and the second electricity
Flow sensor；
First current sensor and second current sensor are installed on the mounting surface of the top cover；
The first end of first current sensor is connect with the second end of the microswitch, first current sensor
Second end is connect with the first end of the 5th connector, to realize the output electric current measure to the DC transformer；
The first end of second current sensor is connect with the first end of the 8th connector, second current sensor
Second end connect with anode layer, to realize to flowing into the first controllable tube current detecting.
10. DC transformer according to claim 9, which is characterized in that further include: the second support frame, main driving plate and
Auxiliary driving plate；Run through on the top cover and socket is installed；
Second support frame is installed on the mounting surface of the radiator, and the main driving plate is located at second support frame
On, the auxiliary driving plate is located on the mounting surface of the radiator, the output end of the main driving plate and the auxiliary driving plate
Input terminal connection, the first output end of the auxiliary driving plate are connect with the control terminal of first controllable tube, the auxiliary driving plate
Second output terminal connect with the control terminal of second controllable tube, the input terminal of the main driving plate is connect with the socket,
The socket with peripheral control unit for connecting, to realize reception external control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380852.2A CN109347339A (en) | 2018-11-20 | 2018-11-20 | DC transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380852.2A CN109347339A (en) | 2018-11-20 | 2018-11-20 | DC transformer |
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| Publication Number | Publication Date |
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| CN109347339A true CN109347339A (en) | 2019-02-15 |
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