CN214312680U

CN214312680U - Low-impedance laminated busbar for locomotive traction system of domestic chemical engineering

Info

Publication number: CN214312680U
Application number: CN202120660096.XU
Authority: CN
Inventors: 何海华
Original assignee: Guangzhou Shentie Traction Equipment Co ltd
Current assignee: Guangzhou Shentie Traction Equipment Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-09-28
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a low impedance laminated busbar for traction system of domestic chemical engineering locomotive, which comprises a laminated busbar body, wherein the laminated busbar body comprises a first input end, a second input end, a conductive plate, a connecting block and a fixed block, the second input end is installed at the top of the first input end, the conductive plate is installed at the bottom end of the second input end, an insulating pad is installed on the surface of the conductive plate, a first bridge arm, a second bridge arm, a third bridge arm and a fourth bridge arm are sequentially installed on one side of the second input end, the connecting block is arranged at two ends of the first input end, the fixed block is installed at one end of the connecting block, a threaded hole is formed in the fixed block, a convex rod is installed at one end of the fixed block, the low impedance laminated busbar for traction system of domestic chemical engineering locomotive is safe and reliable in use, the distribution of miscellaneous feelings is greatly reduced, and larger current can be accepted, the service life is long.

Description

Low-impedance laminated busbar for locomotive traction system of domestic chemical engineering

Technical Field

The utility model relates to an electrical equipment technical field specifically is a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used.

Background

With the widespread use of electric traction devices and electric and hybrid traction systems, the market demand for high power inverters is increasing. The traditional separated busbar has overlarge parasitic inductance, transient voltage is generated at the moment of turning off the power switch and is superposed with direct-current loop voltage, and the threat to the power switch and the motor insulation is formed. The larger the distributed inductance, the larger the load current, and the shorter the current drop of the power switch, the more serious this hazard.

The traditional busbar in the prior art is formed by assembling and splicing a plurality of parts, the processing technology is not easy to meet the requirements, multiple times of installation are needed, and mistakes are easy to make. Moreover, the connection part can be loosened and disassembled due to long-term vibration; moist air, such as penetrating the insulation, will cause breakdown between the layers; dust accumulation may lead to creepage breakdown; greatly influences the service life of the busbar, so that the service life of the traditional busbar is only about three years.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used to solve the problem that proposes in the above-mentioned background art, the utility model discloses use safe and reliable, the miscellaneous sense that distributes reduces by a wide margin, can accept bigger electric current and flow, long service life.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used, includes the female body of arranging of stromatolite, the female body of arranging of stromatolite includes input one, input two, current conducting plate, connecting block and fixed block, input two is installed at the top of input one, the current conducting plate is installed to the bottom of input two, the surface mounting of current conducting plate has insulating pad, bridge arm one, bridge arm two, bridge arm three and bridge arm four are installed in proper order to one side of input two, the both ends of input one are provided with the connecting block, the fixed block is installed to the one end of connecting block, the screw hole has been seted up to the inside of fixed block, the protruding pole is installed to the one end of fixed block.

As a preferred embodiment of the present invention, the conductive plate is made of red copper, and the insulating pad is made of PET.

As a preferred embodiment of the present invention, the conductive plates are electrically isolated from each other by using PET.

As a preferred embodiment of the present invention, the adjacent conductive layers flow opposite currents between the conductive plates by a proximity effect.

As an optimized embodiment of the present invention, a hole corresponding to the protruding rod is disposed on one side of the connecting block.

As a preferred embodiment of the present invention, the fixing block passes through the screw hole fixed connection through the screw.

The utility model has the advantages that: the utility model discloses a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used, female body of arranging including the stromatolite, female body of arranging of stromatolite includes input one, input two, current conducting plate, insulating pad, connecting block, screw hole, fixed block, nose bar, bridge arm one, bridge arm two, bridge arm three, bridge arm four.

1. This low impedance stromatolite female row that domestic chemical engineering locomotive traction system used adopts red copper as current conducting plate, PET material as insulating film, and the aluminum product is female arranging the base plate as, adopts stromatolite formula design to fold together multilayer current conducting plate, adopts PET to carry out electrical isolation between the current conducting plate, through making the connecting wire flat cross-section, makes adjacent conducting layer flow through opposite electric current through proximity effect to make the magnetic field that produces between them offset each other, make the miscellaneous sense of distribution reduce by a wide margin.

2. The tiled surface of the low-impedance laminated busbar for the locomotive traction system of the domestic chemical engineering provides a large-area heat dissipation area, so that the low-impedance laminated busbar can receive larger current to flow through.

3. The low-impedance laminated busbar for the domestic engineering locomotive traction system is plugged in and pulled out by using the convex rod and the connecting block, and is simple and rapid to install and high in fault tolerance rate.

Drawings

Fig. 1 is a schematic structural diagram of the appearance of a low impedance laminated busbar for a domestic engineering locomotive traction system of the present invention;

fig. 2 is a schematic side view of a low impedance laminated busbar for a traction system of a domestic engineering locomotive according to the present invention;

in the figure: 1. an input end I; 2. an input end II; 3. a conductive plate; 4. an insulating pad; 5. connecting blocks; 6. a threaded hole; 7. a fixed block; 8. a nose bar; 9. a first bridge arm; 10. a second bridge arm; 11. a third bridge arm; 12. and a fourth bridge arm.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used, includes the female body of arranging of stromatolite, the female body of arranging of stromatolite includes input one 1, input two 2, current conducting plate 3, connecting block 5 and fixed block 7, input two 2 is installed at the top of input one 1, current conducting plate 3 is installed to input two 2's bottom, current conducting plate 3's surface mounting has insulating pad 4, bridge arm one 9, bridge arm two 10, bridge arm three 11 and bridge arm four 12 are installed in proper order to one side of input two 2, the both ends of input one 1 are provided with connecting block 5, fixed block 7 is installed to the one end of connecting block 5, threaded hole 6 has been seted up to the inside of fixed block 7, protruding pole 8 is installed to the one end of fixed block 7.

As a preferred embodiment of the present invention, the conductive plate 3 is made of red copper, and the insulating pad 4 is made of PET, so that it has a good insulating effect.

As a preferred embodiment of the present invention, the conductive plates 3 are electrically isolated from each other by PET, and work independently from each other.

In a preferred embodiment of the present invention, the adjacent conductive layers flow opposite currents through the proximity effect between the conductive plates 3, so that magnetic fields generated between the conductive layers cancel each other, and the distribution noise is greatly reduced.

As an optimized embodiment of the present invention, a hole corresponding to the protruding rod 8 is provided on one side of the connecting block 5, so that it can be connected with the protruding rod in a matching manner.

As a preferred embodiment of the present invention, the fixing block 7 passes through the screw hole 6 for fixing connection through a screw, and is fixedly installed inside the device.

The working principle is as follows: the low-impedance laminated busbar for the traction system of the domestic engineering locomotive mainly comprises a first input end 1, a second input end 2, a conductive plate 3, connecting blocks 5 and fixing blocks 7, wherein the laminated busbar is used for connecting a power module and a capacitor and connecting input and output terminals, the laminated busbar is connected by designing to minimize stray inductance, the connecting blocks 5 are installed at two ends, holes with the same size as the convex rods 8 are formed in the surface of each connecting block 5, the convex rods 8 on one side of each fixing block 7 are inserted into the holes for connection, then screws penetrate through the threaded holes 6 in the fixing blocks 7, the fixing blocks 7 and the laminated busbar are fixed in equipment together, the convex rods 8 are used for connection so as to facilitate plugging and pulling installation, the time required by disassembly is saved, the laminated busbar adopts red copper as the conductive plate 3, PET material as an insulating pad 4, and aluminum material as a busbar substrate, the multi-layer current-conducting plates 3 are stacked together by adopting a laminated design, PET is adopted between the current-conducting plates 3 for electrical isolation, connecting wires are made into a flat section, opposite currents flow through adjacent conducting layers through a proximity effect, so that magnetic fields generated between the adjacent conducting layers are mutually offset, the distributed miscellaneous feeling is greatly reduced, a large-area heat dissipation area is provided on the appearance, the large-area heat dissipation area can receive larger currents to flow through, output terminals of modules of a first bridge arm 9, a second bridge arm 10, a third bridge arm 11 and a fourth bridge arm 12 output to a traction motor for power supply, wherein the fourth bridge arm 12 is an output terminal of a VLU resistor.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a female row of low impedance stromatolite that domestic chemical engineering locomotive traction system used, includes the female body of arranging of stromatolite, its characterized in that: the laminated busbar body comprises a first input end (1), a second input end (2), a current conducting plate (3), a connecting block (5) and a fixing block (7), the second input end (2) is installed at the top of the first input end (1), the current conducting plate (3) is installed at the bottom end of the second input end (2), an insulating pad (4) is installed on the surface of the current conducting plate (3), a first bridge arm (9), a second bridge arm (10), a third bridge arm (11) and a fourth bridge arm (12) are sequentially installed on one side of the second input end (2), the connecting block (5) is arranged at two ends of the first input end (1), the fixing block (7) is installed at one end of the connecting block (5), a threaded hole (6) is formed in the fixing block (7), and a convex rod (8) is installed at one end of the fixing block (7).

2. The low-impedance laminated busbar for the traction system of the domestic engineering locomotive according to claim 1, wherein the low-impedance laminated busbar comprises: the conductive plate (3) is made of red copper, and the insulating pad (4) is made of PET.

3. The low-impedance laminated busbar for the traction system of the domestic engineering locomotive according to claim 1, wherein the low-impedance laminated busbar comprises: and the conductive plates (3) are electrically isolated by adopting PET.

4. The low-impedance laminated busbar for the traction system of the domestic engineering locomotive according to claim 1, wherein the low-impedance laminated busbar comprises: the adjacent conductive layers flow opposite currents through the conductive plates (3) through a proximity effect.

5. The low-impedance laminated busbar for the traction system of the domestic engineering locomotive according to claim 1, wherein the low-impedance laminated busbar comprises: one side of the connecting block (5) is provided with a hole corresponding to the convex rod (8).

6. The low-impedance laminated busbar for the traction system of the domestic engineering locomotive according to claim 1, wherein the low-impedance laminated busbar comprises: the fixing block (7) penetrates through the threaded hole (6) through a screw to be fixedly connected.