CN207410224U - A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel - Google Patents
A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel Download PDFInfo
- Publication number
- CN207410224U CN207410224U CN201721450505.3U CN201721450505U CN207410224U CN 207410224 U CN207410224 U CN 207410224U CN 201721450505 U CN201721450505 U CN 201721450505U CN 207410224 U CN207410224 U CN 207410224U
- Authority
- CN
- China
- Prior art keywords
- current
- parallel
- output
- shell
- circuit plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel, high-power driving power supply applied to electri forklift, it is of different sizes according to fork truck, it is also different to the power demand of power supply, therefore according to the fork truck of different capacity level requirements, realize that dilatation can meet demand by the way of power sources in parallel.In addition, considering from Energy Angle, fork truck kinetic energy and workbench gravitional force can be fed back into supplying cell during fork truck brake or workbench decline, therefore the power flow of fork truck driving power needs to realize two-way flow.A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel in the utility model, single module power grade is 6kW, it can realize high-efficiency operation, power density is high, small in volume, while there is CAN communication interface, for the fork truck demand of different capacity grade, multiple module paralleling operation can be achieved, controlled between each module by communication-cooperation.
Description
Technical field
The utility model is a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel, belongs to energy technology field.
Background technology
Due to problem of environmental pollution getting worse, all kinds of bavin gasoline engine tail gas are the main reason for being polluted to air
One of, since high-power fork truck power grade is high, bavin Water Oil Or Gas fork truck originally can release substantial amounts of tail gas at work
Environment is polluted, in recent years as the development of battery technology, the concept of electri forklift gradually become reality, this application is applied to electricity
The high-power driving power supply of electrical forklift, it is of different sizes according to fork truck, it is also different to the power demand of power supply, therefore according to different work(
The fork truck of rate level requirements realizes that dilatation can meet demand by the way of power sources in parallel.In addition, it is examined from Energy Angle
Consider, fork truck kinetic energy and workbench gravitional force can be fed back into power supply electricity during fork truck brake or workbench decline
Pond, therefore the power flow of fork truck driving power needs to realize two-way flow.
Utility model content
In view of the deficienciess of the prior art, the utility model it is a kind of can be in parallel the two-way DC/DC of low-voltage, high-current it is straight
Galvanic electricity source, including：Air switch K1, input processing circuit plate B1, three road parallel circuit plate B2, three road shunt inductance L1~L3,
Output processing circuit plate B3, control panel B4, accessory power supply plate B5, display circuit board B6, casing W, radiator S, radiation air
Fan F1, radiator fan F2, inlet wire air plug interface P1, outlet air plug interface P2, communication interface T1, it is characterised in that：The shell W
Rear interior be equipped with radiator fan F1 and radiator fan F2 and inlet wire air plug interface P1 and outlet air plug interface P2, it is described into
Line air plug interface P1 is high-pressure side input terminal DCin+ and DCin-, and the inlet wire air plug interface P1 is connected with air switch K1
It connects, then the lightning protection circuit with input processing circuit plate B1 is connected, output and the input processing circuit plate B1 of the lightning protection circuit
Interior high-pressure side precharge link is connected, and the output of the high-pressure side precharge link of the input processing circuit plate B1 connects three tunnels simultaneously
Join the high-pressure side sample circuit of circuit board B2, the high-pressure side sample circuit meets input filter capacitor C1, the filter capacitor C1
Three road parallel connection chopping circuits of positive and negative two termination, the three roads parallel connection chopping circuit connect again three road shunt inductance L1 of outlet side~
Three tunnels insurance FU3~FU5 of L3, three roads shunt inductance L1~L3 connection output processing circuit plates B3, the insurance of three tunnels connect again
Meet three tunnel current detecting current divider FL1~FL3, three tunnel current detecting current divider FL1~FL3 outlet sides and together, through output
Filter capacitor C2, the output filter capacitor C2 anodes connection low-pressure side precharge link, low-pressure side are pre-charged link through pressure-sensitive
After resistance RV4, then to output terminal DCout+ and DCout- after outlet side sampling divider resistance R3 and R4, radiator fan F1 and dissipate
Hot-air fan F2 power supply circuits DLfan connects output terminal DCout+ and DCout- respectively, wherein, DCout+ is in radiator fan F1 and dissipates
Radiator fan F1 and radiator fan F2 positive terminals are connected to after temperature detect switch (TDS) St in Hot-air fan F2 power supply circuits DLfan,
DCout- is connected directly to the negative pole end of radiator fan F1 and radiator fan F2, and the front side cabinet panel of shell W is equipped with display electricity
Road plate B6 and communication interface T1.
As a kind of preferred embodiment of the utility model, P2 points of the inlet wire air plug interface P1 and outlet air plug interface
Not Wei Yu shell W most rear sides both ends, the radiator fan F1 and radiator fan F2 are in the centre position of shell W most rear sides, position
In the centre of inlet wire air plug interface P1 and outlet air plug interface P2；The radiator S is located at shell W inner back sides, three tunnel
Parallel circuit plate B2 is located at the upper end of radiator S, and the input processing circuit plate B1 is located at shell W inner right sides front end, that is, dissipates
Hot device S front ends right positions；The control panel B4 is located at radiator S front ends, the left side of input processing circuit plate B1；The auxiliary
Power panel B5 is located at the front end of control panel B4, the left side of input processing circuit plate B1；The three roads shunt inductance L1~L3 is located at
Front left side inside shell W, the front end of radiator S, the left side of 10 control panel B4；The output processing circuit plate B3 is located at shell W
Internal front left side, the front end of three road shunt inductance L1~L3, the left side of accessory power supply plate B5；The communication interface T1 is located at shell
The front end cabinet panel leftmost side of W, the display circuit board B6 are located at the front end cabinet panel center section of shell W, institute
State the front end cabinet panel rightmost side that air switch K1 is located at shell W.
As a kind of preferred embodiment of the utility model, the input processing circuit plate B1 includes being not limited to：It is molten
Disconnected device FU1, varistor RV1, varistor RV2, varistor RV3, discharge tube G1, soft relay KM1, counnter attack diode
D1, soft resistance R1, fuse FU2.
As a kind of preferred embodiment of the utility model, the three roads parallel circuit plate B2 includes being not limited to：Electricity
Flow Hall sensor H1, current-limiting resistance Rx, voltage hall sensor H2, input filter capacitor C1, copped wave bridge arm 1, copped wave bridge arm
2nd, copped wave bridge arm 3.
As a kind of preferred embodiment of the utility model, the output processing circuit plate B3 includes being not limited to：It is molten
Disconnected device FU1, fuse FU2, fuse FU3, current divider FL1, current divider FL2, current divider FL3, output filter capacitor C2, soft
Relay KM2, fuse FU6, soft resistance R2, counnter attack diode D2, varistor RV4, sampling resistor R3 and R4, ground connection electricity
Hold C3 and C4.
As a kind of preferred embodiment of the utility model, the positive-negative input end of the accessory power supply plate B5 is female for direct current
Line anode DC+ and dc bus cathode DC- is exported as+15V ports, -15V ports, 5V ports and AGND ports, described auxiliary
Help power panel B5 plate B4, display circuit board B6 and current Hall sensor H1 and voltage hall sensor H2 power supplies in order to control.
As a kind of preferred embodiment of the utility model, the control panel B4 includes being not limited to：Power supply, relay
The input of KM1 and KM2 control signals, the output of switching tube S1~S6 drive signals, the input of hardware fault signal, control On-off signal
Output, the input of key point temperature sampling signal, the input of AD sampled signals, CAN communication and parameter show signal output.
A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel of the utility model, have the beneficial effect that：
The utility model switching device selects MOSFET power switch pipes, and switching frequency can reach 100kHz, individual module
The interior form using three tunnel copped wave bridge arm parallel connection, in addition three road and bridge arms crisscross parallels controls are realized by respective 120 ° of phase shift, this
Sample can substantially reduce output current ripple, therefore pass through the crisscross parallel control between high switching frequency and three road and bridge arms
System can substantially reduce the volume of output inductor and capacitance, improve the power density of the power supply on the whole.The utility model
It is proposed that power output end DCout+ is defined as simulation ground AGND, such AGND can serve as outlet side voltage sample and electricity
The reference ground of sampling is flowed, therefore current divider may be employed and sample three road electric currents, using the form sampling and outputting voltage of divider resistance,
It can so be sampled to avoid outlet side using Hall sensor, greatly reduce cost, also improve sampling precision.This reality
With the new parallel connection that can realize multimode, controlled between each module by communication-cooperation, different fork truck power grades can be directed to
Demand realizes dilatation, it can be achieved that power flow two-way flow, can feed back to supplying cell by fork truck and kinetic energy and workbench potential energy,
System effectiveness is so substantially increased, adds the fork truck working time, also improves the utilization rate of battery.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is a kind of two-way DC/DC DC power supply circuits schematic diagram of low-voltage, high-current that can be in parallel of the utility model.
Fig. 2 is a kind of two-way DC/DC DC power supplies overall structure top view of low-voltage, high-current that can be in parallel of the utility model.
In figure：1. shell W, 2. radiator S, 3. 3 road shunt inductance L1~L3,4. output processing circuit plate B3,5. communications
Interface T1,6. display circuit board B6,7. air switch K1,8. accessory power supply plate B5,9. input processing circuit plate B1,10. controls
Plate B4,11. 3 road parallel circuit plate B2,12. inlet wire air plug interface P1,13. radiator fan F1,14. radiator fan F2,15. go out
Line air plug interface P2.
Specific embodiment
Technical means, creative features, achievable purpose and effectiveness to realize the utility model are easy to understand, below
With reference to specific embodiment, the utility model is expanded on further.
- Fig. 2 is please referred to Fig.1, the utility model provides a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel,
Including：Air switch K1 7, input processing circuit plate B1 9, three road parallel circuit plate B2 11, three road shunt inductance L1~L3
3, output processing circuit plate B3 4, control panel B4 10, accessory power supply plate B5 8, display circuit board B6 6, casing W 1, dissipate
Hot device S 2, radiator fan F1 13, radiator fan F2 14, inlet wire air plug interface P1 12, outlet air plug interface P2 15, communication
Interface T1 5, it is characterised in that：The rear interior of the shell W 1 be equipped with radiator fan F1 13 and radiator fan F2 14 and
Inlet wire air plug interface P1 12 and outlet air plug interface P2 15, the inlet wire air plug interface P1 12 are high-pressure side input terminal
DCin+ and DCin-, the inlet wire air plug interface P1 12 are connected with air switch K1 7, then with input processing circuit plate B1
9 lightning protection circuit is connected, and the output of the lightning protection circuit is pre-charged link phase with the high-pressure side in input processing circuit plate B1 9
Even, the output of the high-pressure side precharge link of the input processing circuit plate B1 9 connects the high pressure of three road parallel circuit plate B2 11
Side sample circuit, the high-pressure side sample circuit connect positive and negative two terminations, three tunnels of input filter capacitor C1, the filter capacitor C1
Parallel connection chopping circuit, the three roads parallel connection chopping circuit meet three road shunt inductance L1~L3 3 of outlet side again, and three tunnel is simultaneously
Join No. three fuse FU3~FU5 that inductance L1~L3 3 connects output processing circuit plate B3 4, No. three fuse FU3~FU5 are again
Connect three tunnel current detecting current divider FL1~FL3, three tunnel current detecting current divider FL1~FL3 outlet sides and together, through defeated
Go out filter capacitor C2, the output filter capacitor C2 anodes connection low-pressure side precharge link, pressure side is pre-charged link through pressure-sensitive
After resistance RV4, then to output terminal DCout+ and DCout-, radiator fan F1 13 after outlet side sampling divider resistance R3 and R4
Output terminal DCout+ and DCout- are connected respectively with 14 power supply circuit DLfan of radiator fan F2, wherein, DCout+ is in radiation air
Radiator fan F1 13 and heat dissipation are connected to after temperature detect switch (TDS) St in 14 power supply circuit DLfan of fan F1 13 and radiator fan F2
14 positive terminals of fan F2, DCout- are connected directly to the negative pole end of radiator fan F1 13 and radiator fan F2 14, shell W 1
Front side cabinet panel be equipped with display circuit board B6 6 and communication interface T1 5.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the inlet wire air plug interface P1 12
It is located at the both ends of the most rear sides of shell W 1, the radiator fan F1 13 and radiator fan F2 respectively with outlet air plug interface P2 15
14 shell W 1 most rear side centre position, positioned at the centre of inlet wire air plug interface P1 12 and outlet air plug interface P2 15；It is described
Radiator S 2 is located at 1 inner back sides of shell W, and the three roads parallel circuit plate B2 11 is located at the upper end of radiator S 2, described
Input processing circuit plate B1 9 is located at 1 inner right side front ends of shell W, i.e. 2 front end right positions of radiator S；The control panel
B4 10 is located at 2 front ends of radiator S, the left side of input processing circuit plate B1 9；The accessory power supply plate B5 8 is located at control panel
The front end of B4 10, the left side of input processing circuit plate B1 9；The three roads shunt inductance L1~L3 3 is located inside shell W 1
Front left side, the front end of radiator S 2, the left side of control panel B4 10；The output processing circuit plate B3 4 is located in shell W 1
Portion's front left side, the front end of three road shunt inductance L1~L3 3, the left side of accessory power supply plate B5 8；The communication interface T1 5 is located at
The front end cabinet panel leftmost side of shell W 1, the display circuit board B6 6 are located in the front end cabinet panel of shell W 1
Between part, the air switch K1 7 is located at the front end cabinet panel rightmost side of shell W 1.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the input processing circuit plate B1
9 include being not limited to：Fuse FU1, varistor RV1, varistor RV2, varistor RV3, discharge tube G1, soft relay
Device KM1, counnter attack diode D1, soft resistance R1, fuse FU2.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the three roads parallel circuit plate B2
11 include being not limited to：Current Hall sensor H1, current-limiting resistance Rx, voltage hall sensor H2, input filter capacitor C1, cut
Ripple bridge arm 1, copped wave bridge arm 2, copped wave bridge arm 3.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the output processing circuit plate B3
4 include being not limited to：It is fuse FU1, fuse FU2, fuse FU3, current divider FL1, current divider FL2, current divider FL3, defeated
Go out filter capacitor C2, soft relay KM2, fuse FU6, soft resistance R2, counnter attack diode D2, varistor RV4, sampling
Resistance R3 and R4, ground capacity C3 and C4.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the accessory power supply plate B5's 8
Positive-negative input end be dc bus anode DC+ and dc bus cathode DC-, export for+15V ports, -15V ports, 5V ports with
And AGND ports, the accessory power supply plate B5 8 plate B4 10, display circuit board B6 6 and current Hall sensor H1 in order to control
It powers with voltage hall sensor H2.
It please refers to Fig.1 and Fig. 2, as a kind of preferred embodiment of the utility model, the control panel B4 10 is included simultaneously
It is not limited to：Power supply, the input of relay KM1 and KM2 control signal, the output of switching tube S1~S6 drive signals, hardware fault signal
Input, the output of control On-off signal, the input of key point temperature sampling signal, the input of AD sampled signals, CAN communication and parameter
Show signal output.
A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel, connection mode are as follows：Power supply high-pressure side inputs
End DCin+ and DCin-, DCin+ and DCin- connect the positive-negative input end of two-way air switch K1, the anode of two-way air switch K1
Output terminal DCK+ connects one end of fuse FU1, and the one of another termination varistor RV1 and varistor RV3 of fuse FU1
End, while connect one end of soft relay KM1 and one end of counnter attack diode D1, another termination discharge tube of varistor RV1
One end of G1 and one end of varistor RV2, another endmatcher case shell W of discharge tube G1, the other end of varistor RV2 and
The cathode output end DCK- of another termination two-way air switch K1 of varistor RV3, another termination of counnter attack diode D1 are soft
Play one end of resistance R1, one end of another termination fuse FU2 of soft resistance R1, the other end of fuse FU2 and soft after
The other end of electric appliance KM1 connects the input terminal of input side current Hall sensor H1, the output terminal of current Hall sensor H1 simultaneously
Connect one end of dc bus anode DC+ and input side voltage sample current-limiting resistance Rx, another termination input of current-limiting resistance Rx
One end of side voltage hall sensor H2, a termination dc bus anode DC+ of input side filter capacitor C1, input side filtered electrical
Hold C1 the other end and voltage hall sensor H2 another termination dc bus cathode DC-, and dc bus cathode DC- with
The cathode output end DCK- of air switch K1 is the same end.1 port of copped wave bridge arm 1, copped wave bridge in three road parallel connection chopping circuits
1 port of arm 2 and 1 port of copped wave bridge arm 3 are connected on dc bus anode DC+, 3 ports of copped wave bridge arm 1, the 3 of copped wave bridge arm 2
Port and 3 ports of copped wave bridge arm 3 are connected on dc bus cathode DC-, and 2 ports of copped wave bridge arm 1 connect three road parallel filtering inductance
The one side of filter inductance L1 in L1~L3,2 ports of copped wave bridge arm 2 connect the filtered electrical in three road parallel filtering inductance L1~L3
Feel the one side of L2,2 ports of copped wave bridge arm 3 connect the one side of the filter inductance L3 in three road parallel filtering inductance L1~L3, three tunnels
The one side of another side joint fuse FU3 of filter inductance L1 in parallel filtering inductance L1~L3, three road parallel filtering inductance L1
The one side of another side joint fuse FU4 of filter inductance L2 in~L3, the filtered electrical in three road parallel filtering inductance L1~L3
The one side of another side joint fuse FU5 of L3 is felt, in three tunnel current detecting current divider FL1~FL3 of another side joint of fuse FU3
The anode of current divider FL1+, current divider FL2 is being just in three tunnel current detecting current divider FL1~FL3 of another side joint of fuse FU4
Pole+, the anode of current divider FL3 in three tunnel current detecting current divider FL1~FL3 of another side joint of fuse FU5+, three road electric currents
Detect the cathode of current divider FL1 in current divider FL1~FL3-, current divider FL2 in three tunnel current detecting current divider FL1~FL3
Cathode-with the cathode-of current divider FL3 in three tunnel current detecting current divider FL1~FL3 and together with connect output filter capacitor C2's
One end, while connect one end of soft relay KM2 and one end of fuse FU6.Soft resistance of another termination of fuse FU6
One end of R2, the other end of soft resistance R2 take over control one end of anti-diode D2, the other end of counnter attack diode D2 and soft after
The other end of electric appliance KM2 is connected to simultaneously on output cathode DCout+.The another of output filter capacitor C2 terminates to output negative pole
On DCout-, and the cathode output end DCK- of DCout- and dc bus cathode DC- and air switch K1 are the same end, pressure-sensitive electricity
It hinders RV4 mono- and terminates output cathode DCout+, another termination output negative pole DCout- of varistor RV4.Voltage sample resistance R3 and
R4 is cascaded and in parallel with output filter capacitor C2.Temperature detect switch (TDS) St mono- is terminated defeated in radiator fan power supply circuit DLfan
Go out anode DCout+, the input anode Vin+, the input cathode Vin- of radiator fan of another termination radiator fans of temperature detect switch (TDS) St
Meet power supply output negative pole DCout-.A side joint of side joint power supply an output cathode DCout+, ground capacity C4 of ground capacity C3
Power supply output negative pole DCout-.The opposite side of ground capacity C3 and the opposite side of ground capacity C4 are connected to casing W simultaneously.
Define power supply output cathode DCout+ for analog references AGND simultaneously.
The utility model switching device selects MOSFET power switch pipes, and switching frequency can reach 100kHz, individual module
The interior form using three tunnel copped wave bridge arm parallel connection, in addition three road and bridge arms crisscross parallels controls are realized by respective 120 ° of phase shift, this
Sample can substantially reduce output current ripple, therefore pass through the crisscross parallel control between high switching frequency and three road and bridge arms
System can substantially reduce the volume of output inductor and capacitance, improve the power density of the power supply on the whole.The utility model
It is proposed that power output end DCout+ is defined as simulation ground AGND, such AGND can serve as outlet side voltage sample and electricity
The reference ground of sampling is flowed, therefore current divider may be employed and sample three road electric currents, using the form sampling and outputting voltage of divider resistance,
It can so be sampled to avoid outlet side using Hall sensor, greatly reduce cost, also improve sampling precision.This reality
With the new parallel connection that can realize multimode, controlled between each module by communication-cooperation, different fork truck power grades can be directed to
Demand realizes dilatation, it can be achieved that power flow two-way flow, can feed back to supplying cell by fork truck and kinetic energy and workbench potential energy,
System effectiveness is so substantially increased, adds the fork truck working time, also improves the utilization rate of battery.
The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above, for
For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims
All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation
It is required that.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel, including：Air switch K1 (7), input processing circuit
Plate B1 (9), three road parallel circuit plate B2 (11), three road shunt inductance L1~L3 (3), output processing circuit plate B3 (4), control panel
B4 (10), accessory power supply plate B5 (8), display circuit board B6 (6), casing W (1), radiator S (2), radiator fan F1
(13), radiator fan F2 (14), inlet wire air plug interface P1 (12), outlet air plug interface P2 (15), communication interface T1 (5) are special
Sign is：The rear interior of the shell W (1) is equipped with radiator fan F1 (13) and radiator fan F2 (14) and inlet wire air plug connects
Mouthful P1 (12) and outlet air plug interface P2 (15), the inlet wire air plug interface P1 (12) be high-pressure side input terminal DCin+ with
DCin-, the inlet wire air plug interface P1 (12) are connected with air switch K1 (7), then with input processing circuit plate B1's (9)
Lightning protection circuit is connected, and the output of the lightning protection circuit is connected with the high-pressure side precharge link in input processing circuit plate B1 (9),
The output of the high-pressure side precharge link of the input processing circuit plate B1 (9) connects the high-pressure side of three road parallel circuit plate B2 (11)
Sample circuit, the high-pressure side sample circuit connect positive and negative two terminations, three tunnels of input filter capacitor C1, the filter capacitor C1 simultaneously
Join chopper circuit, the three roads parallel connection chopping circuit meets three road shunt inductance L1~L3 (3) of outlet side again, and three tunnel is in parallel
Three tunnels insurance FU3~FU5 of inductance L1~L3 (3) connection output processing circuit plate B3 (4), the insurance of three tunnels reconnect three road electric currents
Detect current divider FL1~FL3, three tunnel current detecting current divider FL1~FL3 outlet sides and together, through output filter capacitor C2,
The output filter capacitor C2 anodes connection low-pressure side precharge link, low-pressure side are pre-charged link after varistor RV4, then
To output terminal DCout+ and DCout- after outlet side sampling divider resistance R3 and R4, radiator fan F1 (13) and radiator fan F2
(14) power supply circuit DLfan connects output terminal DCout+ and DCout- respectively, wherein, DCout+ is in radiator fan F1 (13) and dissipates
Radiator fan F1 (13) and radiator fan F2 (14) are connected to after temperature detect switch (TDS) St in Hot-air fan F2 (14) power supply circuit DLfan
Positive terminal, DCout- are connected directly to the negative pole end of radiator fan F1 (13) and radiator fan F2 (14), the front side of shell W (1)
Panel is equipped with display circuit board B6 (6) and communication interface T1 (5).
2. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The inlet wire air plug interface P1 (12) and outlet air plug interface P2 (15) are located at the both ends of shell W (1) most rear sides respectively, described to dissipate
Hot-air fan F1 (13) and radiator fan F2 (14) shell W (1) most rear side centre position, positioned at inlet wire air plug interface P1 (12)
With the centre of outlet air plug interface P2 (15)；The radiator S (2) is located at shell W (1) inner back side, three tunnel electricity in parallel
Road plate B2 (11) is located at the upper end of radiator S (2), before the input processing circuit plate B1 (9) is located at shell W (1) inner right side
End, i.e. radiator S (2) front end right positions；The control panel B4 (10) is located at radiator S (2) front end, input processing circuit plate
The left side of B1 (9)；The accessory power supply plate B5 (8) is located at the front end of control panel B4 (10), a left side of input processing circuit plate B1 (9)
Side；The three roads shunt inductance L1~L3 (3) is located at the internal front left sides of shell W (1), the front end of radiator S, 10 control panel B4's
Left side；The output processing circuit plate B3 (4) is located at the internal front left sides of shell W (1), before three road shunt inductance L1~L3 (3)
End, the left side of accessory power supply plate B5 (8)；The communication interface T1 (5) is located at the front end cabinet panel leftmost side of shell W (1),
The display circuit board B6 is located at the front end cabinet panel center section of shell W (1), and the air switch K1 (7) is located at outer
The front end cabinet panel rightmost side of shell W (1).
3. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The input processing circuit plate B1 (9) includes being not limited to：Fuse FU1, varistor RV1, varistor RV2, pressure-sensitive electricity
Hinder RV3, discharge tube G1, soft relay KM1, counnter attack diode D1, soft resistance R1, fuse FU2.
4. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The three roads parallel circuit plate B2 (11) includes being not limited to：Current Hall sensor H1, current-limiting resistance Rx, voltage hall sensing
Device H2, input filter capacitor C1, copped wave bridge arm 1, copped wave bridge arm 2, copped wave bridge arm 3.
5. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The output processing circuit plate B3 (4) includes being not limited to：Fuse FU1, fuse FU2, fuse FU3, current divider FL1,
Current divider FL2, current divider FL3, output filter capacitor C2, soft relay KM2, fuse FU6, soft resistance R2, counnter attack two
Pole pipe D2, varistor RV4, sampling resistor R3 and R4, ground capacity C3 and C4.
6. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The positive-negative input end of the accessory power supply plate B5 (8) is dc bus anode DC+ and dc bus cathode DC-, is exported as+15V
Port, -15V ports, 5V ports and AGND ports, the accessory power supply plate B5 (8) plate B4 (10), display circuit board in order to control
B6 (6) and current Hall sensor H1 and voltage hall sensor H2 power supplies.
7. a kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel according to claim 1, it is characterised in that：
The control panel B4 (10) includes being not limited to：Power supply, the input of relay KM1 and KM2 control signal, switching tube S1~S6 drivings
Signal output, the input of hardware fault signal, the output of control On-off signal, the input of key point temperature sampling signal, AD sampling letters
Number input, CAN communication and parameter show signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450505.3U CN207410224U (en) | 2017-11-03 | 2017-11-03 | A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450505.3U CN207410224U (en) | 2017-11-03 | 2017-11-03 | A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207410224U true CN207410224U (en) | 2018-05-25 |
Family
ID=62317975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721450505.3U Active CN207410224U (en) | 2017-11-03 | 2017-11-03 | A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207410224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579658A (en) * | 2017-11-03 | 2018-01-12 | 苏州共元自控技术有限公司 | A kind of two-way DC/DC dc sources of low-voltage, high-current that can be in parallel |
| CN109980956A (en) * | 2019-03-28 | 2019-07-05 | 孙驰 | A kind of DC power supply |
| CN110963442A (en) * | 2019-09-25 | 2020-04-07 | 郑州嘉晨电器有限公司 | Control method for safe lifting operation of industrial vehicle |
-
2017
- 2017-11-03 CN CN201721450505.3U patent/CN207410224U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579658A (en) * | 2017-11-03 | 2018-01-12 | 苏州共元自控技术有限公司 | A kind of two-way DC/DC dc sources of low-voltage, high-current that can be in parallel |
| CN109980956A (en) * | 2019-03-28 | 2019-07-05 | 孙驰 | A kind of DC power supply |
| CN110963442A (en) * | 2019-09-25 | 2020-04-07 | 郑州嘉晨电器有限公司 | Control method for safe lifting operation of industrial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207410224U (en) | A kind of two-way DC/DC DC power supplies of low-voltage, high-current that can be in parallel | |
| CN107579658A (en) | A kind of two-way DC/DC dc sources of low-voltage, high-current that can be in parallel | |
| CN105896646A (en) | Intelligent buck-boost charging/discharging circuit and charging/discharging method thereof | |
| CN206619669U (en) | A kind of battery modules of end plate built-in water passage | |
| CN209643134U (en) | A kind of integrated PCB and controller integral layout structure | |
| CN102882408A (en) | Power unit of inverter | |
| CN203537004U (en) | Intelligent lithium battery stand-by power supply device | |
| CN202585603U (en) | Lithium ion battery and patch board for same | |
| CN107846136A (en) | A kind of concentrator of high power density power module | |
| CN107020968A (en) | A kind of direct-current charging post of non-air-cooled distributed deployment | |
| CN203119558U (en) | Intelligent power module of charger | |
| CN202231611U (en) | Combined power supply filter | |
| CN207150224U (en) | A kind of lithium battery charging device of multichannel | |
| CN203180610U (en) | Vehicle power supply storage battery combination capable of automatically parallel operating | |
| CN205959193U (en) | USB timesharing multiplex circuit based on USB change over switch | |
| CN206067781U (en) | A kind of Vehicular multifunctional attachment means suitable for railway | |
| CN204068654U (en) | A kind of strong and weak electricity integral type ic power conversion equipment | |
| CN217545666U (en) | Non-transient-interruption switching circuit for portable equipment | |
| CN107612310A (en) | A kind of vehicle-mounted decompression DC/DC power supplys | |
| CN201234404Y (en) | Electrostatic discharging construction for PCB | |
| CN202473564U (en) | Combined transformer fusing mechanism | |
| CN208862753U (en) | A kind of vehicle-mounted inverter | |
| CN202906540U (en) | Electric bicycle charging protector | |
| CN211856691U (en) | U-shaped manganin shunt | |
| CN202679006U (en) | Vehicle power supply system, charging system, system for charging and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |