All-in-one power converter for vehicles and ships

Abstract

The utility model discloses an all-in-one power converter for vehicles and ships. The all-in-one power converter comprises a charging and inversion two-in-one module, an MPPT (maximum power point tracking) charging module, an internal charging module and a power control module which are integrated together, the power control module is electrically connected with the charging and inversion two-in-one module, the MPPT charging module and the internal charging module. The charging and inversion two-in-one module is used for converting external alternating current into direct current and then charging the backup battery, and the charging and inversion two-in-one module is also used for converting the direct current output by the backup battery into alternating current and outputting the alternating current; the MPPT charging module is used for converting the direct current output by the photovoltaic equipment and then charging the backup battery; and the internal charging module is used for converting the internal direct current and then charging the backup battery. According to the utility model, various kinds of charging power can be converted to charge the backup battery, and the size is small.

Description

TECHNICAL FIELD

[0001] The utility model relates to the power supply field of automobile and ship, especially a kind of multi-in-one power converter for car and ship. BACKGROUND

[0002] The existing automobile and ship can charge backup battery by various charging power, and the various charging power includes external alternating current (such as mains, external generator output alternating current), photovoltaic device output direct current and internal direct current (direct current output by the generator of automobile and ship); however, at present, the various charging power is generally connected to backup battery through different conversion modules, and each conversion module is separately arranged, which occupies a large space, and the main machine of automobile and ship also needs to control each conversion module separately, which is complicated.

[0003] In view of the above problems, it is necessary to study a multi-in-one power converter for car and ship, which can convert various charging power and charge backup battery, and has small volume. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a multi-in-one power converter for car and ship, which can convert various charging power and charge backup battery, and has small volume.

[0005] In order to achieve the above purpose, the solution of the utility model is as follows:

[0006] A multi-in-one power converter for car and ship includes charging-inverter two-in-one module, MPPT charging module, internal charging module and power control module integrated together; the power control module is electrically connected with the charging-inverter two-in-one module, MPPT charging module and internal charging module respectively, and the power control module controls the output of the charging-inverter two-in-one module, MPPT charging module and internal charging module; the charging-inverter two-in-one module is used for converting external alternating current into direct current to charge backup battery, and is also used for converting direct current output by backup battery into alternating current for output; the MPPT charging module is used for converting direct current output by photovoltaic device into direct current to charge backup battery; and the internal charging module is used for converting internal direct current into direct current to charge backup battery.

[0007] The charging-inverter two-in-one module includes AC relay, first EMC filter unit, bidirectional isolation AC-DC conversion unit and bidirectional isolation DC-DC conversion unit connected in sequence.

[0008] The MPPT charging module includes second EMC filter unit, PV anti-reverse and fault isolation unit and DC-DC conversion unit connected in sequence.

[0009] The internal charging module comprises a third EMC filter unit, a fault isolation unit and a bidirectional DC-DC conversion unit connected in sequence.

[0010] The multi-in-one power converter for vehicles and ships further comprises a total EMC filter module connected with the charging-inversion two-in-one module, the MPPT charging module and the internal charging module.

[0011] The multi-in-one power converter for vehicles and ships further comprises an auxiliary power module for supplying power to the charging-inversion two-in-one module, the MPPT charging module, the internal charging module and the power control module.

[0012] After the above scheme is adopted, the multi-in-one power converter for vehicles and ships integrates the charging-inversion two-in-one module, the MPPT charging module, the internal charging module and the power control module, so that the multi-in-one power converter for vehicles and ships is compact in structure and small in size, and is conducive to the layout of the multi-in-one power converter for vehicles and ships on an automobile or a ship; in addition, the multi-in-one power converter for vehicles and ships can charge the backup battery after converting various charging powers through the charging-inversion two-in-one module, the MPPT charging module and the internal charging module, and charging of the backup battery is facilitated; in addition, the multi-in-one power converter for vehicles and ships directly controls the charging-inversion two-in-one module, the MPPT charging module and the internal charging module through the power control module, and the control is simple. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a principle block diagram of the utility model.

[0014] Label explanation:

[0015] Multi-in-one power converter for vehicles and ships A,

[0016] Charging-inversion two-in-one module 1, AC relay 11, first EMC filter unit 12, bidirectional isolation AC-DC conversion unit 13, bidirectional isolation DC-DC conversion unit 14,

[0017] MPPT charging module 2, second EMC filter unit 21, PV anti-reverse and fault isolation unit 22, DC-DC conversion unit 23,

[0018] Internal charging module 3, third EMC filter unit 31, fault isolation unit 32, bidirectional DC-DC conversion unit 33,

[0019] Power control module 4,

[0020] Total EMC filter module 5,

[0021] Auxiliary power module 6,

[0022] Backup battery B, AC load C, DC load D, photovoltaic device E. DETAILED DESCRIPTION

[0023] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0024] As Figure 1 shown, the utility model discloses a car and ship multi -in -one power converter A, it includes integrated charging inverter two -in -one module 1, MPPT charging module 2, internal charging module 3 and power control module 4, power control module 4 is electrically connected with charging inverter two -in -one module 1, MPPT charging module 2 and internal charging module 3 respectively, and power control module 4 controls the output of charging inverter two -in -one module 1, MPPT charging module 2 and internal charging module 3, charging inverter two -in -one module 1 is used to convert external AC into DC and then charges backup battery B, charging inverter two -in -one module 1 is also used to convert the DC of backup battery B output into AC and then exports, MPPT charging module 2 is used to convert the DC of photovoltaic device E output and then charges backup battery B, internal charging module 3 is used to convert internal DC and then charges backup battery B.

[0025] The car and ship multi -in -one power converter A of the utility model integrates charging inverter two -in -one module 1, MPPT charging module 2, internal charging module 3 and power control module 4, so that the car and ship multi -in -one power converter A of the utility model is compact in structure and small in size, which is conducive to the layout of the car and ship multi -in -one power converter A of the utility model on the car or ship, in addition, the utility model can convert various charging power and then charges backup battery B through charging inverter two -in -one module 1, MPPT charging module 2 and internal charging module 3, which is convenient for charging backup battery B, in addition, the utility model directly controls charging inverter two -in -one module 1, MPPT charging module 2 and internal charging module 3 through power control module 4, and the control is simple.

[0026] In the embodiment of the utility model, the charging inverter two -in -one module 1 can include sequentially connected AC relay 11, first EMC filter unit 12, bidirectional isolation AC-DC conversion unit 13 and bidirectional isolation DC-DC conversion unit 2314.

[0027] In the embodiment of the utility model, the MPPT charging module 2 includes sequentially connected second EMC filter unit 21, PV anti -reverse and fault isolation unit 22 and DC-DC conversion unit 23.

[0028] In the embodiment of the utility model, the internal charging module 3 includes third EMC filter unit 31, fault isolation unit 32 and bidirectional DC-DC conversion unit 33 which are connected in sequence.

[0029] In the embodiment of the utility model, the vehicle and ship multi-in-one power converter A of the utility model can further include total EMC filter module 5 which is connected with the charging and inverting two-in-one module 1, MPPT charging module 2 and internal charging module 3, and the total EMC filter module 5 is used to filter the current voltage of the charging and inverting two-in-one module 1, MPPT charging module 2 and internal charging module 3 output to the backup battery B, and guarantee the charging stability of the backup battery B.

[0030] In the embodiment of the utility model, the vehicle and ship multi-in-one power converter A of the utility model can further include auxiliary power module 6 which supplies power to the charging and inverting two-in-one module 1, MPPT charging module 2, internal charging module 3 and power control module 4, and guarantees the stable work of the charging and inverting two-in-one module 1, MPPT charging module 2 and internal charging module 3; the auxiliary power module 6 can take power from various charging power and / or backup battery B.

[0031] In order to facilitate understanding of the vehicle and ship multi-in-one power converter A of the utility model, the following specifically introduces each working mode of the vehicle and ship multi-in-one power converter A of the utility model.

[0032] 1, AC charging and AC bypass load mode: the external AC power is output to the backup battery B after AC to DC and DC voltage conversion by the charging and inverting two-in-one module 1, and charges the backup battery B; in addition, the external AC power can supply power to the AC load C through the AC relay 11;

[0033] 2, inverting output mode: the DC power output by the backup battery B is output to the AC load C after DC voltage conversion and DC to AC by the charging and inverting two-in-one module 1;

[0034] 3, AC bypass load and inverting power increasing mode: the external AC power can supply power to the AC load C through the AC relay 11, and the DC power output by the backup battery B is output to the AC load C after DC voltage conversion and DC to AC by the charging and inverting two-in-one module 1, and the load power of the AC load C is increased;

[0035] 4, MPPT charging mode: the DC power output by the photovoltaic device E is charged to the backup battery B after DC voltage conversion by the MPPT charging module 2;

[0036] 5, internal charging mode: the internal DC power output by the built-in DC generator of the automobile or ship is charged to the backup battery B after DC voltage conversion by the internal charging module 3;

[0037] 6. DC load mode: the DC power output by the backup battery B is converted by the internal charging module 3 to supply power to the DC load D.

[0038] The above embodiments and drawings are not limited to the product shape and style of the present application, and any appropriate changes or modifications made by those skilled in the art should be considered as falling within the scope of the present application.

Claims

1. A multi-in-one power converter for vehicles, characterized by: The charging inverter two-in-one module, the MPPT charging module, the internal charging module and the power control module are integrated together; The power control module is electrically connected with the charging inverter two-in-one module, the MPPT charging module and the internal charging module respectively, and the power control module controls the output of the charging inverter two-in-one module, the MPPT charging module and the internal charging module; The charging inverter two-in-one module is used for converting external alternating current into direct current to charge the backup battery, and is also used for converting direct current output by the backup battery into alternating current to output; The MPPT charging module is used for converting direct current output by the photovoltaic device to charge the backup battery; The internal charging module is used for converting internal direct current to charge the backup battery.

2. The multi-outlet power converter of claim 1, wherein: The charging inverter two-in-one module comprises an alternating current relay, a first EMC filter unit, a bidirectional isolation AC-DC conversion unit and a bidirectional isolation DC-DC conversion unit connected in sequence.

3. The multi-outlet power converter of claim 1, wherein: The MPPT charging module comprises a second EMC filter unit, a PV anti-reverse and fault isolation unit and a DC-DC conversion unit connected in sequence.

4. The multi-outlet power converter of claim 1, wherein: The internal charging module comprises a third EMC filter unit, a fault isolation unit and a bidirectional DC-DC conversion unit connected in sequence.

5. The multi-outlet power converter of claim 1, wherein: A total EMC filter module is further connected with the charging inverter two-in-one module, the MPPT charging module and the internal charging module.

6. The multi-outlet power converter of claim 1, wherein: An auxiliary power supply module is further provided to supply power to the charging inverter two-in-one module, the MPPT charging module, the internal charging module and the power control module.

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