CN201504188U

CN201504188U - Bus bar with laminated capacitors

Info

Publication number: CN201504188U
Application number: CN2009201875433U
Authority: CN
Inventors: 焦道海; 王训金
Original assignee: Anhui Tianyu Electricity & Power Supply Co Ltd
Current assignee: Anhui Tianyu Electricity & Power Supply Co Ltd
Priority date: 2009-09-15
Filing date: 2009-09-15
Publication date: 2010-06-09
Anticipated expiration: 2019-09-15

Abstract

The utility model provides a bus bar with laminated capacitors, which comprises the capacitors (C), resistors (R), power devices (T1-T6), an anode bus plate, a cathode bus plate, an intermediate bus plate, insulation plates, an anode inlet wire end, a cathode inlet wire end, anode power device connection ends and cathode power device connection ends. Direct current input through an anode and a cathode is filtered by the capacitors on DC buses to achieve higher stability, and then converted correspondingly through the power devices upon command control; and the minimum parasitically distributed inductance of the buses is required during the conversion. The bus bar with the laminated capacitors is formed in a manner that the three bus plates are laminated, the capacitors are then mounted on the laminated bus plates by polarity and in sequence, and the laminated buses are finally connected with the power devices through the anode and the cathode power device connection ends, so as to reduce system noises and electromagnetic/radio-frequency interferences, facilitate installation and on-site maintenance, decrease the number of components, improve the system reliability, uniformly distribute the capacitors and achieve simple and elegant appearance.

Description

Capacitor laminating bus bar

Technical field

The utility model relates to the power electronics and the communications field, the capacitor laminating bus bar in particularly being applied in the bus of high power contravariant device.

Background technology

The bus inductance coefficent height of high power contravariant device in being applied at present, structure is not compact, can not effectively utilize space and control system temperature, impedance and pressure drop are big, and due to voltage spikes is big to the infringement of components and parts, and the useful life of electronic component is short, system noise and electromagnetic interference/radio frequency interference are big, number of components is many, has increased the unsteadiness of system, and outward appearance is bad.

The utility model content

In order to overcome the deficiencies in the prior art, the utility model provides a kind of capacitor laminating bus bar, the single or multiple lift strap is isolated with insulating material, make it mutually insulated, according to the parallel plate capacitor principle, can effectively reduce the distributed stray inductance of lead-in wire, make at the Ldi/dt end more, save installing space simultaneously.

The capacitor laminating bus bar that the utility model provides comprises C electric capacity: the bus filter capacitor, determine by actual design by size and installation quantity, R resistance: be grading resistor, make the series capacitance dividing potential drop be all mutually busbar voltage half, the T1-T6 power device, quantity and model are determined by actual design, positive electrode bus plate: bus positive pole, anodal end of incoming cables, connect electric capacity, anodal end of incoming cables and anodal power device link, negative pole bus bar plate: bus negative pole, negative pole end of incoming cables, connect electric capacity, negative pole end of incoming cables and negative pole power device link, the intermediate bus bar plate: the capacitances in series node, connect electric capacity, make electric capacity constitute series connection, insulation board: insulation dielectric, make the positive electrode bus plate, mutual insulating between negative pole bus bar plate and the intermediate bus bar plate, anodal end of incoming cables: the anodal incoming end of bus, negative pole end of incoming cables: bus negative pole incoming end, anodal power device link: the anodal and power device link of bus, negative pole power device link: bus negative pole and power device link.After "+" positive pole and "-" negative pole access DC power supply, the direct current bus bar appearance obtains DC power supply more stably to the input power filter, power device is realized direct current is carried out corresponding conversion by commands for controlling, requires bus that more little parasitic contribution formula inductance is arranged during conversion.In order to reduce to reduce system noise and electromagnetic interference/radio frequency interference, the convenient installation and on-site maintenance, reduce number of components, increased the reliability of system, equally distributed electric capacity, succinctly, attractive in appearance, triple bus-bar plate (by Fig. 2 order of exploding shown in the cleavage map) is stacked up, obtain design sketch shown in Figure 3, then electric capacity is installed on the stacked bus bar plate by polarity and order, by both positive and negative polarity power device link stacked bus and power device are coupled together at last, both can realize capacitor laminating bus bar.

Described positive electrode bus plate connects electric capacity, anodal end of incoming cables and anodal power device link;

Described negative pole bus bar plate connects electric capacity, negative pole end of incoming cables and negative pole power device link;

Described intermediate bus bar plate is the capacitances in series node, connects electric capacity;

Described insulation board design is between positive electrode bus plate, negative pole bus bar plate and intermediate bus bar plate;

Described electric capacity is by polarity and being set in sequence on the stacked bus bar plate;

Described both positive and negative polarity power device link connects stacked bus and power device.

Owing to adopted above technical scheme, the utlity model has following beneficial effect: low inductance coefficent, compact conformation, effectively utilize space and energy control system temperature, minimum impedance, pressure drop reduce the infringement of due to voltage spikes to components and parts, prolong the useful life of (raising) electronic component, reduce system noise and electromagnetic interference/radio frequency interference, the convenient installation and on-site maintenance reduced number of components, increased the reliability of system, equally distributed electric capacity, succinct, attractive in appearance.

Description of drawings

Fig. 1 is a circuit diagram of the present utility model;

Fig. 2 is a blast cleavage map of the present utility model;

Fig. 3 is an installation design sketch of the present utility model;

In the drawings: C-electric capacity, R-resistance, T1-T6-power device, (W, U) V-ac output voltage, 1-positive electrode bus plate, 2-negative pole bus bar plate, 3-intermediate bus bar plate, 4-insulation board, the anodal end of incoming cables of 5-, 6-negative pole end of incoming cables, the anodal power device link of 7-, 8-negative pole power device link

Embodiment

As shown in Figures 1 to 3, the capacitor laminating bus bar that the utility model provides is after "+" positive pole and "-" negative pole access DC power supply, direct current bus bar is held C the input power filter is obtained DC power supply more stably, power device TI-T6 realizes direct current is carried out corresponding conversion by commands for controlling, requires bus that more little parasitic contribution formula inductance is arranged during conversion.In order to reduce to reduce system noise and electromagnetic interference/radio frequency interference, the convenient installation and on-site maintenance, reduce number of components, increased the reliability of system, equally distributed electric capacity, succinctly, attractive in appearance, triple bus-bar plate (by Fig. 2 order of exploding shown in the cleavage map) is stacked up, obtain design sketch shown in Figure 3, then capacitor C is installed on the stacked bus bar plate by polarity and order, by both positive and negative polarity

power device link

7 and 8 stacked bus and power device TI-T6 are coupled together at last, both can realize capacitor laminating bus bar.

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1. capacitor laminating bus bar is characterized in that:

-wherein the positive electrode bus plate connects electric capacity, anodal end of incoming cables and anodal power device link;

-wherein the negative pole bus bar plate connects electric capacity, negative pole end of incoming cables and negative pole power device link;

-wherein the intermediate bus bar plate is the capacitances in series node, connects electric capacity;

-wherein insulation board designs between positive electrode bus plate, negative pole bus bar plate and intermediate bus bar plate;

-wherein electric capacity is by polarity and being set in sequence on the stacked bus bar plate;

-wherein both positive and negative polarity power device link connects stacked bus and power device.