CN216564944U

CN216564944U - Low-voltage starting power generation controller

Info

Publication number: CN216564944U
Application number: CN202122979602.4U
Authority: CN
Inventors: 孔武斌; 周博; 李大伟; 曲荣海; 龙江; 李中原
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-17
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a low-voltage starting power generation controller, which belongs to the field of motor controllers and comprises the following components: the power supply comprises a box body, a control panel, a capacitor plate, a power plate, a filter capacitor and a filter inductor; the control panel, the capacitor plate and the power plate are sequentially stacked in the box body, and the filter capacitor and the filter inductor are respectively arranged on two sides of the capacitor plate. The power board is composed of MOSFET power devices in four-phase interleaved parallel DC/DC circuits and three-phase H-bridge inverter circuits, the capacitance board is composed of filter capacitors and filter inductors in the four-phase interleaved parallel DC/DC circuits, and the control board takes a digital signal processor as a core. By the optimized layout of the inductor and the capacitor and the space laminated design of the control panel, the capacitor plate and the power plate, the size and the weight of the low-voltage starting power generation controller are effectively reduced, the integrated integration of a starting power circuit and a power circuit for power generation is realized, and the reliability of the controller is improved.

Description

Low-voltage starting power generation controller

Technical Field

The utility model belongs to the field of motor controllers, and particularly relates to a low-voltage starting power generation controller.

Background

In a low-voltage starting power generation system, a bidirectional DC/DC converter is required to be introduced to increase the bus voltage so as to provide the bus voltage for a later-stage inverter. And in the starting stage, the low-voltage power supply supplies power, the power is boosted through the DC/DC converter and then is supplied to the high-voltage side direct-current bus, the boosted power is supplied to the rear-stage inverter to drive the starting generator, the engine is dragged to the ignition rotating speed, then the engine drags the starting generator to generate power, and the energy is subjected to voltage reduction through the bidirectional DC/DC converter after passing through the inverter and then is supplied to the low-voltage side power supply for use. The low-voltage start-up power generation controller is complex and presents more challenges to volume, weight and reliability.

In a low-voltage large-current controller, a multiphase staggered parallel design is generally used for a DC/DC topology to reduce the current stress of a single power device, and a power device of a rear-stage inverter also usually works under a low-voltage large-current working condition, and the parallel design is generally required to be performed on the power device to reduce the current stress of the single power device. In the bidirectional DC/DC circuit, the filter inductor and the filter capacitor occupy larger volume, and the complexity, the volume and the weight of the circuit structure are further increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects and the improvement requirements of the prior art, the utility model provides a low-voltage starting power generation controller, which aims to effectively reduce the volume of the low-voltage starting power generation controller through the optimized layout of inductors and capacitors and the space laminated design of a control board, a capacitor board and a power board.

To achieve the above object, the present invention provides a low-voltage start power generation controller, comprising: the power supply comprises a box body, a control panel, a capacitor plate, a power plate, a filter capacitor and a filter inductor; the control panel, the capacitor plate and the power plate are sequentially stacked and placed in the box body, and the filter capacitor and the filter inductor are respectively arranged on two sides of the capacitor plate.

Still further, still include: the heat radiation fan is arranged on the back of the box body; the filter inductor is arranged on one surface of the capacitor plate, which is opposite to the back surface of the box body, and is in contact with the back surface of the box body.

Still further, still include: and the DC/DC converter and the DC/AC converter are arranged on the power board and respectively comprise a plurality of MOSFETs which are transversely arranged.

Still further, still include: a support plate disposed between the control plate and the capacitive plate; and the plurality of bus bar copper bars are positioned between the support plate and the capacitor plate.

Furthermore, the power board is located the back of box department, be provided with a plurality of copper posts on the electric capacity board, the control panel, the backup pad with a plurality of copper bars that converge pass through the copper posts are fixed on the electric capacity board.

Still further, still include: and the power line plugs are arranged on the bottom surface of the box body.

Still further, still include: and the plurality of air wire plugs are arranged on the side surface of the box body.

Generally, by the above technical solution conceived by the present invention, the following beneficial effects can be obtained: by optimizing the layout of the inductor and the capacitor and the space lamination design of the control panel, the capacitor panel and the power panel, the size and the weight of the low-voltage starting power generation controller are effectively reduced, and the integrated integration of a starting power circuit and a power circuit for power generation is realized; through rational design and heat dissipation optimization on the structural layout, the reliability of the controller is improved.

Drawings

FIG. 1 is an exploded view of a low-voltage start-up power generation controller provided by an embodiment of the present invention;

FIG. 2 is a rear view of a low-voltage start-up power generation controller provided by an embodiment of the present invention;

FIG. 3 is a bottom view of a low-voltage start-up power generation controller provided by an embodiment of the present invention;

fig. 4 is a right side view of the low-voltage start power generation controller according to the embodiment of the present invention.

The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:

the power line plug comprises a box body 1, a control board 2, a capacitor board 3, a power board 4, a filter capacitor 5, a filter inductor 6, a cooling fan 7, a DC/DC converter 8, a DC/AC converter 9, a support board 10, a busbar 11, a copper column 12, a power line plug 13 and an aerial line plug 14.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the present application, the terms "first," "second," and the like (if any) in the description and the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Fig. 1 is an exploded view of a low-voltage start power generation controller according to an embodiment of the present invention. Referring to fig. 1, a low-voltage start power generation controller in the present embodiment will be described in detail with reference to fig. 2 to 4.

Referring to fig. 1, the low-voltage start-up power generation controller includes: the circuit board comprises a box body 1, a control board 2, a capacitor plate 3, a power plate 4, a filter capacitor 5 and a filter inductor 6. The control board 2, the capacitor board 3 and the power board 4 are sequentially stacked in the box body 1; the filter capacitor 5 and the filter inductor 6 are respectively arranged on two sides of the capacitor plate 3. The laminated structure reduces the volume of the low-voltage starting power generation controller, and the two-side placement structure of the filter capacitor and the filter inductor fully utilizes the space of the box body, so that the volume of the low-voltage starting power generation controller is further reduced.

Furthermore, the power board 4 is composed of MOSFET power devices in two circuits of a four-phase interleaved parallel DC/DC circuit and a three-phase H-bridge inverter circuit, the capacitor board 3 is composed of a filter capacitor 5 and a filter inductor 6 in the four-phase interleaved parallel DC/DC circuit, and the control board 2 takes a Digital Signal Processor (DSP) as a core.

The low-voltage start-up power generation controller further includes a radiator fan 7. The heat radiation fan 7 is provided on the back surface of the case 1 as shown in fig. 2. The filter inductor 6 is provided on the side of the capacitor plate 3 opposite to the back side of the case 1, and is in contact with the back side of the case 1. Further, the filter inductor 6 is tightly attached to the back surface of the box body 1, so that the heat dissipation performance of the filter inductor 6 is optimized.

The low-voltage starting power generation controller further includes a DC/DC converter 8 and a DC/AC converter 9 provided on the power board 4. The DC/DC converter 8 is a four-phase interleaved parallel DC/DC circuit; the DC/AC converter 9 is a three-phase H-bridge inverter circuit. The DC/DC converter 8 and the DC/AC converter 9 each include a plurality of MOSFETs arranged laterally, specifically, for example, each include a plurality of MOSFETs arranged laterally left and right. In the embodiment, a MOSFET power device with a high switching frequency is preferred, so that the volumes of the inductor and the capacitor can be effectively reduced. The heat generated by the MOSFET loss in the DC/DC converter 8 and the DC/AC converter 9 can be radiated through the case 1 and the heat radiation fan 7 to improve the stability of the low-voltage start power generation controller.

The low-voltage starting power generation controller further includes a support plate 10 and a plurality of busbar bars 11. The support plate 10 is disposed between the control plate 2 and the capacitor plate 3; a plurality of busbar bars 11 are located between the support plate 10 and the capacitor plates 3.

The power board 4 is located at the back of the box body 1, namely the control board 2, the support board 10, the busbar 11, the capacitor board 3 and the power board 4 are sequentially located between the front and the back of the box body 1. A plurality of copper pillars 12 are provided on the capacitor plate 3. The control board 2, the support board 10 and the busbar bar 11 are fixed on the capacitor plate 3 through the copper column 12.

The low-voltage start-up power generation controller also includes a plurality of power line plugs 13. The power cord plug 13 is provided on the bottom surface of the case 1 as shown in fig. 3. The low-voltage start-up generation controller also includes a plurality of airline plugs 14. The airline plug 14 is provided on the side of the cabinet 1 as shown in fig. 4.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A low-voltage start power generation controller, comprising: the device comprises a box body (1), a control panel (2), a capacitor plate (3), a power plate (4), a filter capacitor (5) and a filter inductor (6);

control panel (2) capacitor plate (3) with power board (4) are stromatolite in proper order and are placed in box (1), filter capacitor (5) with filter inductance (6) set up respectively the two sides of capacitor plate (3).

2. The low-voltage start-up power generation controller according to claim 1, further comprising:

a heat radiation fan (7) arranged on the back of the box body (1);

the filter inductor (6) is arranged on one surface of the capacitor plate (3) opposite to the back surface of the box body (1) and is in contact with the back surface of the box body (1).

3. The low-voltage start-up power generation controller according to claim 1, further comprising: a DC/DC converter (8) and a DC/AC converter (9) each disposed on the power board (4) and each including a plurality of MOSFETs arranged laterally.

4. The low-voltage start-up power generation controller according to claim 1, further comprising:

a support plate (10) arranged between the control plate (2) and the capacitive plate (3);

a plurality of busbar bars (11) located between the support plate (10) and the capacitor plate (3).

5. The undervoltage start-up power generation controller according to claim 4, wherein the power board (4) is located at a back surface of the case (1), a plurality of copper pillars (12) are provided on the capacitor board (3), and the control board (2), the support board (10) and the plurality of busbar bars (11) are fixed on the capacitor board (3) through the plurality of copper pillars (12).

6. The low-pressure start-up power generation controller according to any one of claims 1 to 5, further comprising: and the power line plugs (13) are arranged on the bottom surface of the box body (1).

7. The low-pressure start-up power generation controller according to any one of claims 1 to 5, further comprising: and the plurality of air wire plugs (14) are arranged on the side surface of the box body (1).