Composite busbar for subway locomotive charger module

Abstract

A composite busbar for a subway locomotive charger module comprises a laminated pole plate and a third pole plate. And the laminated polar plate comprises a first polar plate and a second polar plate which are sequentially laminated. And insulating films are arranged on two overlapped surfaces of the laminated polar plate and the third polar plate. The first polar plate comprises a first polar plate main body, a first avoiding hole, a first insulating pad and a mounting hole; and the second polar plate comprises a second polar plate main body, a second avoiding hole, a second insulating pad and an internal convex hull. The position of the second receding hole corresponds to the position of the first receding hole. And the positions and the number of the internal convex hulls correspond to those of the avoiding holes. And a slotting structure is arranged at the narrowest part of the round hole on one side, close to the edge of the polar plate main body, of the avoiding hole. The composite busbar for the subway locomotive charger module adapts to the skin effect of high-frequency current in a subway locomotive charger through the arrangement of a laminated structure, optimizes the temperature rise characteristic of the high-frequency current, thereby prolonging the service life of a power device, improving the working safety of the power device, and improving the reliability of the power device through the arrangement of edge holes.

Description

Technical Field

[0001] The utility model relates to the technical field of composite busbars, in particular to a composite busbar for a subway locomotive charger module. Background Art

[0002] Composite busbars are widely used in urban subway rail transit. The composite busbar for the subway locomotive charger module is one of the core plates of the charger power module equipment, directly responsible for connecting the plates of various electronic components and ensuring their safe and reliable performance. The charger module busbar is based on technical requirements and fully considers the application environment of this type of subway locomotive, aiming to provide this type of locomotive with a circuit connector with reliable performance, compact structure and easy maintenance.

[0003] In the charger module of the subway locomotive, the high-frequency current of the charger module induces the skin effect. The current of the composite busbar tends to remain constant, and the current on its outer surface increases or decreases, resulting in an increase in the resistance of the composite busbar, thereby affecting the power transmission efficiency. In addition, for some compact composite busbars, the product is limited by space, the overall size is compact, and the edge avoidance holes of the conductor plate will be close to the edge, especially the tail avoidance holes, which will make the distance between the avoidance holes and the edge of the conductor plate small and the conductor plate is prone to deformation when cutting. Utility Model Content

[0004] In view of this, the utility model provides a composite busbar for a subway locomotive charger module.

[0005] The composite busbar for the subway locomotive charger module includes at least one laminated plate and at least one third plate arranged below the laminated plate. The laminated plate includes at least one first plate stacked in sequence and at least one second plate arranged below the first plate. The first plate includes at least one first plate body, at least one first avoidance hole opened on the first plate body, at least one first insulating pad arranged in the first avoidance hole, and at least one mounting hole arranged on the first plate body. The first avoidance hole is used to avoid the parts arranged on the third plate. The second plate includes at least one second plate body, at least one second avoidance hole opened on the second plate body, at least one second insulating pad arranged in the second avoidance hole, and at least one internal convex bulge arranged on the first plate body. The second avoidance hole is arranged corresponding to the first avoidance hole. The internal convex bulge is arranged corresponding to the mounting hole. When the laminated plate is integrated with high voltage, the first avoidance hole coincides with the second avoidance hole, and the mounting hole coincides with the internal convex bulge. The inner convex bump overlaps the first electrode plate, so that the second electrode plate overlaps the first electrode plate, and then the second electrode plate and the first electrode plate are co-polarized. The first and second avoidance holes are arranged at the edges of the first and second electrode plates, and a slot structure is arranged at the narrowest part of the circular hole close to the edge of the electrode plate body.

[0006] Furthermore, the third electrode plate includes a third electrode plate body, at least one third avoidance hole opened on the third electrode plate body, at least one third insulating pad arranged in the third avoidance hole, and at least one copper column arranged on the first electrode plate body.

[0007] Furthermore, the position of the third avoidance hole corresponds to the internal convex bulge, and the position of the copper column corresponds to the second avoidance hole and passes through the first avoidance hole and the second avoidance hole.

[0008] Furthermore, the third avoidance hole is spaced apart from the copper column, the first avoidance hole is spaced apart from the mounting hole, and the second avoidance hole is spaced apart from the internal convex bulge.

[0009] Furthermore, the outer contour of the third electrode plate body is the same as the outer contour of the second electrode plate body.

[0010] Furthermore, insulating films are provided on both sides of the first electrode plate, the second electrode plate, and the third electrode plate, and the hole structures provided on the laminated electrode plate and the third electrode plate are sealed with insulating films or insulating pads.

[0011] Furthermore, the first electrode plate also includes at least one first pin arranged at one end of the first electrode plate body and protruding vertically outward, the second electrode plate also includes at least one second pin arranged at one end of the second electrode plate body and protruding vertically outward, and the third electrode plate also includes at least one third pin arranged at one end of the third electrode plate body and protruding vertically outward.

[0012] Furthermore, the second pin is staggered with the first pin, and the third pin is staggered with the second pin and the first pin.

[0013] Compared with the prior art, the utility model provides a subway locomotive charger module with a composite busbar, in which the first and second plates are arranged in the same polarity to reduce the skin effect caused by high-frequency current, and reduce the loss of high-frequency current due to the skin effect, so as to ensure the working efficiency of the charger module. The avoidance hole at the edge of the plate body is slotted, which not only prevents the avoidance hole from deformation, but also increases the insulation edge sealing area, thereby increasing the insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a structural schematic diagram of a composite busbar for a subway locomotive charger module.

[0015] Figure 2 This is a structural exploded view of a composite busbar for a subway locomotive charger module provided by the utility model. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0017] See also Figure 1 to Figure 2 , which is a schematic diagram of the structure of the composite busbar for the subway locomotive charger module provided by the utility model. The composite busbar for the subway locomotive charger module includes at least one laminated plate 10, and at least one third plate 20 arranged below the laminated plate 10. It can be imagined that the composite busbar for the subway locomotive charger module also includes some other functional modules, such as injection molding devices, molding devices, etc., which are well known to those skilled in the art and will not be repeated here.

[0018] The laminated plate 10 includes at least one first plate 11 stacked in sequence, and at least one second plate 12 arranged below the first plate 11. The laminated plate 10 is arranged together with the third plate 20, and the specific arrangement method will be described below in conjunction with the third plate 20. The laminated plate 10 is made of a metal conductive material, and the commonly used material is copper. Copper has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance, and has a wide range of applications.

[0019] The first electrode 11 includes at least one first electrode body 111, at least one first avoidance hole 112 opened on the first electrode body 111, at least one first insulating pad 113 arranged in the first avoidance hole 112, at least one mounting hole 114 arranged on the first electrode body 111, and at least one first pin 115 arranged at one end of the first electrode body 111 and protruding vertically outward.

[0020] The first plate body 111 is bent to form the first pin 115, and there is a protrusion extending outward at the location where the first pin 115 is set, which facilitates the installation of the first pin 115. It can be imagined that the shape of the first plate body 111 changes accordingly according to the overlapping position of the first pin 115. The first avoidance hole 112 is used to avoid the parts set on the third plate 20. The setting of the first avoidance hole 112 is related to the second plate 12 and the third plate 20 described below, and is specifically described in conjunction with the third plate 20 described below. The outer diameter of the first avoidance hole 112 is the same as the inner diameter of the first insulating pad 113, and the first avoidance hole 112 and the first insulating pad 113 are stably installed. The installation and fixation of the first insulating pad 113 is a general technology and will not be repeated here. In this embodiment, the mounting hole 114 is spaced apart from the first avoidance hole 112, and the mounting hole 114 and the first avoidance hole 112 are arranged in a straight line. The mounting hole 114 is used to promote the same polarization of the laminated plate 10. It is conceivable that, according to specific requirements, the first avoidance holes 112 and the mounting holes 114 can also be arranged in a wave shape, etc. The first pins 115 are used to connect other components.

[0021] The second electrode 12 includes at least one second electrode body 121, at least one second avoidance hole 122 opened on the second electrode body 121, at least one second insulating pad 123 nested in the second avoidance hole 122, at least one internal convex bump 124 arranged on the first electrode body 111, and at least one second pin 125 arranged at one end of the second electrode body 121 and protruding vertically outward.

[0022] The second electrode body 121 is bent to form the second pin 125, which is provided with a protrusion extending outward at the second pin 125 to facilitate the installation of the second pin 125. The second avoidance hole 122 is provided corresponding to the first avoidance hole 112. The outer diameter of the second avoidance hole 122 is the same as the inner diameter of the second insulating pad 123, and the second avoidance hole 122 and the second insulating pad 123 are stably installed. The internal convex bump 124 is provided corresponding to the mounting hole 114, so that the distance between the second avoidance hole 122 and the internal convex bump 124 is the same as the distance between the first avoidance hole 112 and the mounting hole 114. Therefore, when the laminated electrode 10 is subjected to high voltage integration, the first avoidance hole 112 on the first electrode 11 coincides with the second avoidance hole 122 on the second electrode 12, and the mounting hole 114 coincides with the internal convex bump 124. The outer diameter of the internal convex bump 124 is larger than the diameter of the mounting hole 114, so that the internal convex bump 124 overlaps with the first electrode plate 11, so that the second electrode plate 12 overlaps with the first electrode plate 11, and then the second electrode plate 12 and the first electrode plate 11 are copolarized. The overlapping of the internal convex bump 124 and the mounting hole 114 is a general technology and will not be repeated here. Due to the skin effect of high-frequency current, the electromotive force generated by high-frequency current forces the high-frequency current to pass only through the outer surface of the electrode plate, resulting in an increase in the equivalent resistance on the electrode plate and an increase in current loss. The first electrode plate 11 and the second electrode plate 12 are arranged with the same polarity, so that the surface area of ​​the high-frequency current passing through the laminated electrode plate 10 is increased, thereby reducing the current transmission loss, optimizing the temperature rise characteristics of the high-frequency current, and thus improving the service life and working safety of the power device. The second pin 125 is used to connect other components. The second pin 125 is staggered with the first pin 115. The side where the second pin 125 is located is perpendicular to the side where the first pin 115 is located, making installation convenient. The arrangement of the second avoidance hole 122 is related to the third electrode plate 20 described below, and will be described in detail in conjunction with the third electrode plate 20 described below.

[0023] The third electrode plate 20 includes a third electrode plate body 21, at least one third pin 22 disposed at one end of the third electrode plate body 21 and protruding vertically outward, at least one third avoidance hole 23 provided on the third electrode plate body 21, at least one third insulating pad 24 disposed in the third avoidance hole 23, and at least one copper column 25 disposed on the first electrode plate body 111. The third electrode plate 20 is overlapped with the laminated electrode plate 10. Insulating films are disposed on both sides of the first electrode plate 11, the second electrode plate 12, and the third electrode plate 20, and the hole structures disposed on the laminated electrode plate 10 and the third electrode plate 20 are sealed with insulating films or insulating pads. The laminated electrode plate 10 and the third electrode plate 20 are formed by a bending machine and stacked in sequence to form an integrated structure. This is a general technology and will not be repeated here.

[0024] The outer contour of the third electrode body 21 is the same as the outer contour of the second electrode body 121. The third pin 22 is staggered with the second pin 125 and the first pin 115. The position of the third avoidance hole 23 corresponds to the internal convex bulge 124, and the position of the copper pillar 25 corresponds to the second avoidance hole 122 and passes through the first avoidance hole 112 and the second avoidance hole 122. In this embodiment, the third avoidance hole 23 is spaced apart from the copper pillar 25, so that the first avoidance hole 112 is spaced apart from the mounting hole 114, and the second avoidance hole 121 is spaced apart from the internal convex bulge 124. It can be imagined that, according to actual conditions, the third avoidance hole 23 and the copper pillar 25 can be continuously arranged.

[0025] The first, second and avoidance holes 112, 122 are arranged at the edges of the first and second plate bodies 111, 121, and a slot structure is arranged at the narrowest part of the circular hole close to the edge of the plate body so that it will not deform during punching, thereby facilitating the positioning of the insulating pad installed therein. At the same time, the avoidance hole is connected to the edge of the plate body where it is located, which also increases the insulating edge sealing area of ​​the plate body and improves the insulation performance.

[0026] Compared with the prior art, the utility model provides a subway locomotive charger module with a composite busbar, in which the first plate 11 and the second plate 12 are arranged in the same polarity to reduce the skin effect caused by high-frequency current, and reduce the loss of high-frequency current due to the skin effect, so as to ensure the working efficiency of the charger module. The avoidance hole at the edge of the plate body is grooved, which not only prevents the avoidance hole from deformation, but also increases the insulation edge sealing area, thereby increasing the insulation.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A composite busbar for a subway locomotive charger module, characterized in that: The composite busbar for the subway locomotive charger module includes at least one laminated plate and at least one third plate arranged below the laminated plate. The laminated plate includes at least one first plate stacked in sequence and at least one second plate arranged below the first plate. The first plate includes at least one first plate body, at least one first avoidance hole opened on the first plate body, at least one first insulating pad arranged in the first avoidance hole, and at least one mounting hole arranged on the first plate body. The first avoidance hole is used to avoid parts arranged on the third plate. The second plate includes at least one second plate body, at least one second plate body opened on the second plate body. a second avoidance hole, at least one second insulating pad arranged in the second avoidance hole, and at least one internal convex bump arranged on the first electrode body, the second avoidance hole is arranged corresponding to the first avoidance hole, and the internal convex bump is arranged corresponding to the mounting hole, when the laminated electrode is integrated under high voltage, the first avoidance hole coincides with the second avoidance hole, the mounting hole coincides with the internal convex bump, the internal convex bump overlaps with the first electrode plate, so that the second electrode plate overlaps with the first electrode plate, and then the second electrode plate and the first electrode plate are copolarized, the first and second avoidance holes arranged at the edges of the first and second electrode plate bodies, and a slot structure is arranged at the narrowest part of the circular hole close to the edge of the electrode body.

2. The composite busbar for a subway locomotive charger module according to claim 1, characterized in that: The third electrode plate includes a third electrode plate body, at least one third avoidance hole opened on the third electrode plate body, at least one third insulating pad arranged in the third avoidance hole, and at least one copper column arranged on the first electrode plate body.

3. The composite busbar for a subway locomotive charger module according to claim 2, characterized in that: The position of the third avoidance hole corresponds to the internal convex hull, and the position of the copper column corresponds to the second avoidance hole and passes through the first avoidance hole and the second avoidance hole.

4. The composite busbar for a subway locomotive charger module according to claim 3, characterized in that: The third avoidance hole is spaced apart from the copper column, the first avoidance hole is spaced apart from the mounting hole, and the second avoidance hole is spaced apart from the internal convex bulge.

5. The composite busbar for a subway locomotive charger module according to claim 1, characterized in that: The outer contour of the third electrode plate body is the same as the outer contour of the second electrode plate body.

6. The composite busbar for a subway locomotive charger module according to claim 1, characterized in that: Insulating films are arranged on both sides of the first electrode plate, the second electrode plate and the third electrode plate, and the hole structures arranged on the laminated electrode plate and the third electrode plate are sealed with insulating films or insulating pads.

7. The composite busbar for a subway locomotive charger module according to claim 1, characterized in that: The first electrode plate also includes at least one first pin arranged at one end of the first electrode plate body and protruding vertically outward, the second electrode plate also includes at least one second pin arranged at one end of the second electrode plate body and protruding vertically outward, and the third electrode plate also includes at least one third pin arranged at one end of the third electrode plate body and protruding vertically outward.

8. The composite busbar for a subway locomotive charger module according to claim 7, characterized in that: The second pin is staggered with the first pin, and the third pin is staggered with the first pin and the second pin.

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