Inverter current-sharing output structure

Abstract

The present disclosure provides an inverter current-sharing output structure, comprising a plurality of power output assemblies and a bus assembly. Each power output assembly comprises a plurality of power conversion modules; the bus assembly is provided with a plurality of conductors, the conductors are configured to respectively correspond to the power output assemblies, each conductor comprises an output end and a plurality of branch ends extending from the output end, a conductive path is defined between each branch end and the output end along the conductor, the branch ends are respectively connected to the power conversion modules in the corresponding power output assembly, and the lengths of the conductive paths are approximately the same.

Description

Inverter current sharing output structure Technical Field

[0001] The present disclosure relates to an inverter, and more particularly to an inverter current-sharing output structure. Background Art

[0002] FIG1 is a schematic diagram of the configuration of an inverter output structure in the prior art. FIG2 is a perspective schematic diagram of the conductors of the inverter output structure in the prior art. FIG3 is a perspective schematic diagram of the conductors of the inverter output structure in the prior art connected to the power output components. See FIG1 to FIG3. Today's automotive inverters generally include a main body and a housing 10. The main body is housed within the housing 10, and the housing 10 is provided with a connector 11 electrically connected to the main body for connecting the main body to a power source and a load. The main body has power conversion modules (21, 22) and conductors 30. The conductors 30 are connected between the connectors 11 and the corresponding power conversion modules (21, 22) to transmit the current output by the power conversion modules (21, 22) to the connectors 11. The conductors 30 have branch ends (31, 32, 33, 34) connected to each power conversion module and an output end 35 connected to the connector 11. Generally speaking, the conductors 30 extend along the gaps between the components without a specific structure set for a specific purpose. Therefore, the path lengths of the currents output from each power conversion module (21, 22) from each branch end (31, 32, 33, 34) to the output end 35 are significantly different. Even the path lengths of the current paths connected to each electrode in a single power conversion module (21, 22) are different. For example, the path of the current through the outer branch end (31, 33) is longer than the path through the inner branch end (32, 34). Therefore, there are significant phase differences and resistance differences between the currents. The phase difference causes the current output to be asynchronous. When the current is output to a motor load, the currents output to each phase of the motor are asynchronous, causing the motor to stall. The resistance difference limits the overall performance of the inverter to the circuit with the maximum resistance. When the output power of other paths has not reached the upper limit of the capacity, the output power of this path has reached the upper limit, making it impossible for the inverter as a whole to increase the output power, that is, failing to reach the predetermined output capacity of the power conversion module (21, 22).

[0003] In view of this, the present inventor has conducted intensive research on the above-mentioned prior art and applied theoretical knowledge to try his best to solve the above-mentioned problems, which has become the goal of the present inventor's improvement. Summary of the Invention

[0004] The present disclosure provides an inverter current sharing output structure.

[0005] The present disclosure provides an inverter current-sharing output structure comprising: a plurality of power output components and a bus component. Each power output component comprises a plurality of power conversion modules; the bus component comprises a plurality of conductors, each of which is configured to correspond to each power output component. Each conductor comprises an output end and a plurality of branch ends extending from the output end. A conductive path is defined along the conductor between each branch end and the output end. Each branch end is connected to each power conversion module in the corresponding power output component, and the conductive paths are of substantially the same length.

[0006] In one embodiment of the present disclosure, the power conversion modules in each of the power output components are arranged in parallel, and the power conversion modules are arranged in a row.

[0007] In one embodiment of the present disclosure, the inverter current sharing output structure further includes an output connector. The output ends of each conductor are electrically connected to the output connector. An output path is defined between each branch end and the output connector, and the lengths of the output paths are substantially the same.

[0008] In one embodiment of the present disclosure, the output ends of the conductors are respectively connected to the output connector.

[0009] In one embodiment of the present disclosure, each output end of the conductors is connected to the output connector via a wire, and the wires have the same diameter and length.

[0010] In one embodiment of the present disclosure, the current flux through each output path is uniform.

[0011] In one embodiment of the present disclosure, the current flux through each conductive path is uniform.

[0012] In one embodiment of the present disclosure, the cross-sectional area along the center line of each conductive strip is uniform.

[0013] In one embodiment of the present disclosure, a conductive strip is formed between each branch end and the output end. Each branch end is connected to each power conversion module in the corresponding power output component, and the center lines of the conductive strips have the same length.

[0014] In one embodiment of the present disclosure, each of the power conversion modules has a pair of output contacts, and the pair of output contacts are respectively connected to two of the branch ends.

[0015] In one embodiment of the present disclosure, the cross-sectional areas occupied by the conductive paths when they are parallel are substantially the same.

[0016] The present disclosure further provides an inverter current-sharing output structure, which includes a housing, three power output components, and a bus component. The power output components are disposed within the housing, and each of the power output components includes a pair of power conversion modules, and the power conversion modules are arranged in a row. The bus component has three conductors configured to correspond to each of the power output components, each of the conductors includes an output end and two pairs of branch ends extending from the output end, and each pair of the branch ends is respectively connected to each of the power conversion modules in the corresponding power output component, wherein a conductive strip is formed between each of the branch ends and the output end, and the center lines of the conductive strips have the same length.

[0017] In one embodiment of the present disclosure, a conductive strip is formed between each branch end and the output end. Each branch end is connected to each power conversion module in the corresponding power output component, and the center lines of the conductive strips have the same length.

[0018] In one embodiment of the present disclosure, each of the power conversion modules has a pair of output contacts, and the pair of output contacts are respectively connected to two of the branch ends.

[0019] In one embodiment of the present disclosure, the housing is provided with an output connector. The output ends of the conductors are electrically connected to the output connector. An output path is defined between each branch end and the output connector, and the lengths of the output paths are substantially the same.

[0020] In one embodiment of the present disclosure, the output ends of the conductors are respectively connected to the output connector.

[0021] In one embodiment of the present disclosure, each output end of the conductors is connected to the output connector via a wire, and the wires have the same diameter and length.

[0022] In one embodiment of the present disclosure, the current flux through each output path is uniform.

[0023] In one embodiment of the present disclosure, the cross-sectional area along the center line of each conductive strip is uniform.

[0024] The present disclosure further provides an inverter current-sharing output structure comprising a plurality of power output components and a bus component. Each power output component comprises a pair of power conversion modules arranged side by side in a row. The bus component comprises a plurality of conductors, each of which is configured to correspond to each power output component. Each conductor comprises an output end and two pairs of branch ends extending from the output end. Each pair of branch ends is connected to each power conversion module in the corresponding power output component. A notch is provided on the edge of the conductor between the two pairs of branch ends.

[0025] In one embodiment of the present disclosure, the housing is provided with an output connector. The output ends of the conductors are electrically connected to the output connector. An output path is defined between each branch end and the output connector, and the lengths of the output paths are substantially the same.

[0026] In one embodiment of the present disclosure, the current flux through each output path is uniform.

[0027] In one embodiment of the present disclosure, the output ends of the conductors are respectively connected to the output connector.

[0028] In one embodiment of the present disclosure, each output end of the conductors is connected to the output connector via a wire, and the wires have the same diameter and length. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of a configuration of an inverter output structure in the prior art;

[0030] FIG2 is a perspective schematic diagram of a conductor of an inverter output structure in the prior art;

[0031] FIG3 is a perspective diagram of a conventional inverter output structure with conductors connected to a power output assembly;

[0032] FIG4 is a schematic diagram of the configuration of the inverter current sharing output structure according to the first embodiment of the present disclosure;

[0033] FIG5 is a perspective diagram of the conductors of the inverter current-sharing output structure according to the first embodiment of the present disclosure;

[0034] FIG6 is a perspective diagram of the conductors connected to the power output components of the inverter current-sharing output structure according to the first embodiment of the present disclosure;

[0035] FIG7 is a schematic diagram of the configuration of the inverter current sharing output structure according to the second embodiment of the present disclosure;

[0036] FIG8 is a perspective diagram of the conductors of the inverter current-sharing output structure according to the second embodiment of the present disclosure;

[0037] FIG9 is a perspective diagram of the conductors connected to the power output components of the inverter current sharing output structure according to the second embodiment of the present disclosure.

[0038] DESCRIPTION OF REFERENCE NUMERALS 10: Housing 11: Connector 21, 22: Power output assembly 30: Conductors 31, 32, 33, 34: Branch terminals 35: Output terminal 100a: Housing 210a, 220a, 230a: Power output assembly 211a, 212a, 221a, 222a, 231a, 232a: Power conversion module 300a: Bus assembly 301a, 302a, 303a: Output terminal 310a, 320a, 330a: Conductors 3011a, 3012a, 3023a, 3024a: Conductive paths 3111a, 3112a, 3123a, 3124a, 3211a, 3212a, 3223a, 3224a, 3311a, 3312a 3323a, 3324a: branch ends 311a, 312a, 313a, 314a: center line 400a: output connector 100b: housing 210b, 220b, 230b: power output components 211b, 212b, 221b, 222b, 231b, 232b: power conversion module 300b: bus components 301b, 302b, 303b: output ends 310b, 320b, 330b: conductors 3011b, 3012b, 3023b, 3024b: conductive paths 3111b, 3112b, 3123b, 3124b, 3211b, 3212b, 3223b, 3224b, 3311b, 3312b, 3323b, 3324b: branch ends 311b, 312b, 313b, 314b: center line 315b: notch 400b: output connector DETAILED DESCRIPTION

[0039] In the description of the present disclosure, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0040] As used herein and not otherwise defined, the terms "substantially" and "approximately" are used to describe and describe small variations. When applied to an event or circumstance, the terms may include the exact moment the event or circumstance occurred, as well as the point at which the event or circumstance occurred to a close approximation. For example, when applied to a numerical value, the terms may include a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0041] The detailed description and technical contents of the present disclosure are described below with reference to the accompanying drawings. However, the drawings are for illustrative purposes only and are not intended to limit the present disclosure.

[0042] FIG4 is a schematic diagram illustrating the configuration of an inverter current-sharing output structure according to a first embodiment of the present disclosure. Referring to FIG4 , the first embodiment of the present disclosure provides an inverter current-sharing output structure comprising at least a plurality of power output components (210a, 220a, 230a) and a bus component 300a. In this embodiment, the inverter current-sharing output structure further comprises a housing 100a. The power output components (210a, 220a, 230a) and the bus component 300a are housed within the housing 100a.

[0043] Each power output assembly (210a, 220a, 230a) includes a plurality of power conversion modules (211a, 212a, 221a, 222a, 231a, 232a). The power conversion modules (211a, 212a, 221a, 222a, 231a, 232a) in each power output assembly (210a, 220a, 230a) are arranged in parallel, and the power conversion modules (211a, 212a, 221a, 222a, 231a, 232a) are arranged in a row. In this embodiment, the inverter current-sharing output structure includes three power output assemblies (210a, 220a, 230a) and a bus assembly 300a. Each power output assembly (210a / 220a / 230a) includes a pair of power conversion modules (211a, 212a / 221a, 222a / 231a, 232a). Specifically, the three power output assemblies (210a, 220a, 230a) are used to output three-phase power to the motor. The bus assembly 300a has three conductors (310a, 320a, 330a) respectively configured to correspond to each power output assembly (210a, 220a, 230a). Each conductor (310a / 320a / 330a) includes an output end (301a / 302a / 303a) and two pairs of branch ends (3111a, 3112a, 3123a, 3124a / 3211a, 3212a, 3223a, 3224a) branching from the output end (301a / 302a / 303a). 4a / 3311a, 3312a, 3323a, 3324a), each pair of these branch ends (3111a, 3112a, 3123a, 3124a, 3211a, 3212a, 3223a, 3224a, 3311a, 3312a, 3323a, 3324a) are respectively connected to each power conversion module (211a, 212a, 221a, 222a, 231a, 232a) in the corresponding power output component (210a, 220a, 230a).

[0044] The bus assembly 300a has a plurality of conductors (310a, 320a, 330a), and the conductors (310a, 320a, 330a) are respectively configured to correspond to the power output components (210a, 220a, 230a). Each conductor (310a / 320a / 330a) includes an output end (301a / 302a / 303a) and a plurality of branch ends (3111a, 3112a, 3123a, 3124a, 3125a, 3126a, 3127a, 3128a, 3129a, 3130a, 3131a, 3132a, 3133a, 3134a, 3135a, 3136a, 3137a, 3138a, 3139a, 3140a, 3141a, 3142a, 3143a, 3144a, 3145a, 3146a, 3147a, 3148a, 3149a, 3150a, 3151a, 3152a, 3153a, 3154a, 3155a, 3156a, 3157a, 3158a, 3159a, 3160a, 3161a, 3162a, 3163a, 3164a, 3165a, 3166a, 3167a, 3168a, 3169a, 3170a, 3171a, 3172a, 3173a, 3174a, 3175a, 3124a / 3211a,3212a,3223a,3224a / 3311a,3312a,3323a,3324a), the branch ends (3111a,3112a,3123a,3124a / 3211a,3212a,3223a,3224a / 3311a,3312a,3323a,3324a) can be forked and extended multiple times from the output end (301a / 302a / 303a), and each fork is a one-to-two structure. A conductive strip is formed between each branch end (3111a, 3112a, 3123a, 3124a / 3211a, 3212a, 3223a, 3224a / 3311a, 3312a, 3323a, 3324a) and the output end (301a / 302a / 303a). Although partially overlapping with the center lines (311a, 312a, 313a, 314a) shown in the figure, the conductive strips are shown as parallel for easier reading. The length of the conductive strip in this embodiment is defined as the length of the conductive strip, which is the intersection of the center points of the cross-section of the conductive strip structure shown in FIG. 5 , i.e., the center lines (311a, 312a, 313a, 314a) hereinafter, overlapping with the center lines (311a, 312a, 313a, 314a) shown in the figure.

[0045] In this embodiment, the aforementioned conductors (310a, 320a, 330a) have the same structure, and the connection relationship between each conductor (310a, 320a, 330a) and its corresponding power output component (210a, 220a, 230a) is also the same. Therefore, only one conductor 310a and its corresponding power output component 210a are used as an example in the following text.

[0046] FIG5 is a perspective schematic diagram of the conductor 310a of the inverter current-sharing output structure according to the first embodiment of the present disclosure. FIG6 is a perspective schematic diagram of the conductor 310a of the inverter current-sharing output structure according to the first embodiment of the present disclosure connected to the power output component 210a. Referring to FIG5 and FIG6, each branch end (3111a, 3112a, 3123a, 3124a) is respectively connected to each power conversion module (211a, 212a) in the corresponding power output component 210a. Each power conversion module (211a, 212a) has a pair of output contacts (unnumbered), and the pair of output contacts (unnumbered) are respectively connected to two of the branch ends (3111a, 3112a, 3123a, 3124a).

[0047] 6 , a conductive path (3011a, 3012a, 3023a, 3024a) is defined along the conductor 310a between each branch end (3111a, 3112a, 3123a, 3124a) and the output end 301a. Each branch end (3111a, 3112a, 3123a, 3124a) is respectively connected to each power conversion module (211a, 212a) in the corresponding power output assembly (210a, 220a, 230a). The lengths of these conductive paths (3011a, 3012a, 3023a, 3024a) are substantially the same.

[0048] In terms of electrical properties, in this embodiment, the conductive path does not refer to a single line, but to the average center line of the current from each branch end (3111a, 3112a, 3123a, 3124a) to the output end 301a, that is, the current flux through each conductive path (3011a, 3012a, 3023a, 3024a) is uniform.

[0049] In terms of structure, the conductive paths (3011a, 3012a, 3023a, 3024a) are theoretically identical to the center lines (311a, 312a, 313a, 314a) of the aforementioned conductive strips. However, due to actual errors, there may be slight deviations between the conductive paths (3011a, 3012a, 3023a, 3024a), resulting in negligible length differences between the conductive paths (3011a, 3012a, 3023a, 3024a). However, this does not affect the uniformity of the current flux. Therefore, in terms of electrical properties, the lengths of the conductive paths (3011a, 3012a, 3023a, 3024a) are said to be substantially the same.

[0050] In other words, the structures of the conductors (310a, 320a, 330a) may be different as long as the current flux through each conductive path (3011a, 3012a, 3023a, 3024a) is uniform.

[0051] The aforementioned configuration avoids length differences among the conductive paths (3011a, 3012a, 3023a, 3024a), making the impedance of each conductive path (3011a, 3012a, 3023a, 3024a) substantially the same, allowing the inverter's overall output capacity to approach the sum of the output capacities of each power conversion module (211a, 212a). As previously mentioned, the theoretical impedance can be determined by integrating the cross-sectional area of ​​the conductive strip along its centerline. However, due to practical errors, the current flux passing through different locations within the same cross-section may vary slightly. Therefore, the impedances of the conductive paths (3011a, 3012a, 3023a, 3024a) are considered to be substantially the same. Furthermore, in this embodiment, the conductive paths (3011a, 3023a / 3012a, 3024a) output by the same power conversion module (211a / 212a) are configured to overlap as much as possible to avoid current phase differences between the conductive paths (3011a, 3023a / 3012a, 3024a), thereby preventing motor operation from stalling when current is output to a motor.

[0052] Referring to FIG. 4 , the inverter current-sharing output structure of this embodiment further includes an output connector 400a. The output connector 400a is disposed within the housing 100a and connects the inside and outside of the housing 100a. The output ends (301a, 302a, 303a) of each conductor (310a, 320a, 330a) are electrically connected to the output connector 400a. Specifically, the output ends (301a, 302a, 303a) of each conductor (310a, 320a, 330a) are electrically connected to the output connector 400a. An output path is defined between each branch end (3111a, 3112a, 3123a, 3124a, 3211a, 3212a, 3223a, 3224a, 3311a, 3312a, 3323a, 3324a) and the output connector 400a, and the lengths of these output paths are substantially the same. The definition of "substantially the same" is as described above. An output path does not refer to a single line, but rather to the average center line of the current from each branch end (3111a, 3112a, 3123a, 3124a, 3211a, 3212a, 3223a, 3224a, 3311a, 3312a, 3323a, 3324a) to the output connector 400a. In other words, the current flux through each output path is uniform. For example, each output end (301a / 302a / 303a) of the conductors (310a, 320a, 330a) is connected to the output connector 400a via a wire (not shown), and the wires have the same diameter and length, thereby making the lengths of the output paths substantially the same.

[0053] FIG7 is a schematic diagram illustrating the configuration of an inverter current-sharing output structure according to a second embodiment of the present disclosure. Referring to FIG7 , the second embodiment of the present disclosure provides an inverter current-sharing output structure comprising at least a plurality of power output components (210b, 220b, 230b) and a bus component 300b. In this embodiment, the inverter current-sharing output structure further comprises a housing 100b. The power output components (210b, 220b, 230b) and the bus component 300b are housed within the housing 100b.

[0054] Each power output assembly (210b / 220b / 230b) includes a plurality of power conversion modules (211b, 212b / 221b, 222b / 231b, 232b). The power conversion modules (211b, 212b, 221b, 222b, 231b, 232b) in each power output assembly (210b, 220b, 230b) are arranged in parallel, and the power conversion modules (211b, 212b, 221b, 222b, 231b, 232b) are arranged in a row. In this embodiment, the inverter current-sharing output structure includes three power output assemblies (210b, 220b, 230b) and a bus assembly 300b. Each power output assembly (210b / 220b / 230b) includes a pair of power conversion modules (211b, 212b / 221b, 222b / 231b, 232b). Specifically, the three power output assemblies (210b, 220b, 230b) are used to output three-phase power to the motor. The bus assembly 300b has three conductors (310b, 320b, 330b) respectively configured to correspond to each power output assembly (210b, 220b, 230b), and each conductor (310b / 320b / 330b) includes an output end (301b / 302b / 303b) and two pairs of branch ends (3111b, 3112b, 3123b, 3124b / 3211b, 3212b, 3223b, 3224b) branching from the output end (301b / 302b / 303b). 4b / 3311b, 3312b, 3323b, 3324b), each pair of these branch ends (3111b, 3112b, 3123b, 3124b, 3211b, 3212b, 3223b, 3224b, 3311b, 3312b, 3323b, 3324b) are respectively connected to each power conversion module (211b, 212b / 221b, 222b / 231b, 232b) in the corresponding power output component (210b / 220b / 230b).

[0055] The bus component 300b has a plurality of conductors (310b, 320b, 330b), and the conductors (310b, 320b, 330b) are respectively configured to correspond to the power output components (210b, 220b, 230b). Each conductor (310b / 320b / 330b) includes an output end (301b / 302b / 303b) and a plurality of branch ends (3111b, 3112b, 3123b, 3124b) extending from the output end (301b / 302b / 303b). 3124b / 3211b,3212b,3223b,3224b / 3311b,3312b,3323b,3324b), the branch end (3111b,3112b,3123b,3124b / 3211b,3212b,3223b,3224b / 3311b,3312b,3323b,3324b) can be forked and extended multiple times from the output end (301b / 302b / 303b), and each fork is a one-to-two structure. A conductive strip is formed between each branch end (3111b, 3112b, 3123b, 3124b / 3211b, 3212b, 3223b, 3224b / 3311b, 3312b, 3323b, 3324b) and the output end (301b / 302b / 303b), and the center lines (311b, 312b, 313b, 314b) of the conductive strips have the same length.

[0056] The structures of the aforementioned conductors (310b, 320b, 330b) are substantially the same, and the connection relationship between each conductor (310b, 320b, 330b) and its corresponding power output component (210b, 220b, 230b) is also the same. Therefore, only one conductor 310b and its corresponding power output component 210b will be used as an example in the following text.

[0057] FIG8 is a perspective schematic diagram of the conductor 310b of the inverter current-sharing output structure according to the second embodiment of the present disclosure. FIG9 is a perspective schematic diagram of the conductor 310b of the inverter current-sharing output structure according to the second embodiment of the present disclosure connected to the power output component 210b. Referring to FIG8 and FIG9, each branch end (3111b, 3112b, 3123b, 3124b) is respectively connected to each power conversion module (211b, 212b) in the corresponding power output component 210b. Each power conversion module (211b, 212b) has a pair of output contacts (unnumbered), and the pair of output contacts (unnumbered) are respectively connected to two of the branch ends (3111b, 3112b, 3123b, 3124b).

[0058] 9 , a conductive path (3011b, 3012b, 3023b, 3024b) is defined along the conductor 310b between each branch end (3111b, 3112b, 3123b, 3124b) and the output end 301b. Each branch end (3111b, 3112b, 3123b, 3124b) is respectively connected to each power conversion module (211b, 212b) in the corresponding power output component 210b. The lengths of these conductive paths (3011b, 3012b, 3023b, 3024b) are substantially the same.

[0059] The aforementioned configuration avoids length differences between the conductive paths (3011b, 3012b, 3023b, 3024b), ensuring that the impedance of each conductive path (3011b, 3012b, 3023b, 3024b) is substantially the same. This allows the inverter's overall output capacity to approach the sum of the output capacities of each power conversion module (211b, 212b, 221b, 222b, 231b, 232b). Furthermore, in this embodiment, the conductive paths (3011b, 3023b / 3012b, 3024b) output from the same power conversion module (211b / 212b) are arranged to overlap as much as possible to avoid current phase differences between the conductive paths (3011b, 3023b / 3012b, 3024b). This prevents motor operation from stuttering when current is output to a motor.

[0060] Referring to FIG. 7 , the inverter current-sharing output structure of this embodiment further includes an output connector 400b disposed within the housing 100b and connecting the inside and outside of the housing 100b. The output ends (301b, 302b, 303b) of each conductor (310b, 320b, 330b) are electrically connected to the output connector 400b. Specifically, the output ends (301b, 302b, 303b) of each conductor (310b, 320b, 330b) are electrically connected to the output connector 400b. An output path is defined between each branch end (3111b, 3112b, 3123b, 3124b, 3211b, 3212b, 3223b, 3224b, 3311b, 3312b, 3323b, 3324b) and the output connector 400b, and the lengths of the output paths are substantially the same. For example, each output end (301b / 302b / 303b) of the conductors (310b, 320b, 330b) is connected to the output connector 400b via a wire (not shown), and the wires have the same diameter and length, thereby making the lengths of the output paths substantially the same.

[0061] Referring to Figures 8 and 9 , in this embodiment, a notch is provided on the edge of conductor 310b between the two pairs of branch ends (3111b, 3112b / 3123b, 3124b). This notch extends the physical distance from the middle branch end (3112b, 3124b) to the bifurcation point of the two pairs of branch ends (3111b, 3112b / 3123b, 3124b). This in turn lengthens the conductive paths (3012b, 3024b), reducing the length difference between them and the outer conductive paths (3011b, 3023b) to approximately the same length. This makes it suitable for use in flat configurations.

[0062] By avoiding variations in conductive path lengths through the aforementioned configuration, the impedance of each conductive path is roughly the same, allowing the inverter's overall output capacity to approach the sum of the output capacities of each power conversion module. Furthermore, in this embodiment, conductive paths output from the same power conversion module are arranged to overlap as much as possible to avoid current phase differences between the paths. This prevents motor operation from stuttering when current is output to a motor.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the claims of the present invention. Other equivalent variations that apply the patent spirit of the present invention should all fall within the scope of the claims of the present invention.

Claims

1. An inverter current sharing output structure, comprising: A plurality of power output components, each of which comprises a plurality of power conversion modules; A bus component has multiple conductors, each of which is configured to correspond to each of the power output components. Each of the conductors includes an output end and multiple branch ends extending from the output end. A conductive path is defined along the conductor between each branch end and the output end. Each branch end is connected to each of the power conversion modules in the corresponding power output component, and the lengths of the multiple conductive paths are approximately the same. 2 . The inverter current sharing output structure according to claim 1 , wherein the plurality of power conversion modules in each of the power output components are arranged in parallel, and the plurality of power conversion modules are arranged in parallel in a row.

3. The inverter current-sharing output structure according to claim 1 further comprises an output connector, wherein the output end of each conductor is electrically connected to the output connector respectively, an output path is defined between each branch end and the output connector, and the lengths of the multiple output paths are substantially the same. 4 . The inverter current sharing output structure according to claim 3 , wherein the output ends of the plurality of conductors are respectively connected to the output connector. 5 . The inverter current sharing output structure according to claim 3 , wherein each output end of the plurality of conductors is connected to the output connector via a wire, and the wire diameters and lengths of the plurality of wires are the same. 6 . The inverter current-sharing output structure according to claim 3 , wherein the current flux through each of the output paths is uniform. 7 . The inverter current-sharing output structure according to claim 1 , wherein the current flux through each of the conductive paths is uniform. 8 . The inverter current-sharing output structure according to claim 1 , wherein the cross-sectional integral along the center line of each of the conductive strips is uniform.

9. The inverter current-sharing output structure according to claim 1, wherein a conductive strip is formed between each branch end and the output end, each branch end is respectively connected to each power conversion module in the corresponding power output component, and the center lines of the multiple conductive strips have the same length. 10 . The inverter current sharing output structure according to claim 1 , wherein each of the power conversion modules has a pair of output contacts, and the pair of output contacts are respectively connected to two of the plurality of branch ends.

11. An inverter current sharing output structure, comprising: case; three power output assemblies disposed within the housing, each of the power output assemblies comprising a pair of power conversion modules, and the plurality of power conversion modules being arranged in a row; and A bus component has three conductors respectively configured to correspond to each of the power output components, each of the conductors includes an output end and two pairs of branch ends extending from the output end, each pair of the multiple branch ends is respectively connected to each of the power conversion modules in the corresponding power output component, wherein a conductive strip is formed between each of the branch ends and the output end, and the center lines of the multiple conductive strips have the same length.

12. The inverter current-sharing output structure according to claim 11, wherein a conductive strip is formed between each branch end and the output end, each branch end is respectively connected to each power conversion module in the corresponding power output component, and the center lines of the multiple conductive strips have the same length. 13 . The inverter current sharing output structure according to claim 11 , wherein each of the power conversion modules has a pair of output contacts, and the pair of output contacts are respectively connected to two of the plurality of branch terminals.

14. The inverter current-sharing output structure according to claim 13, wherein the shell is provided with an output connector, the output end of each conductor is electrically connected to the output connector, an output path is defined between each branch end and the output connector, and the lengths of the multiple output paths are substantially the same. 15 . The inverter current sharing output structure according to claim 14 , wherein the output ends of the plurality of conductors are respectively connected to the output connector. 16 . The inverter current sharing output structure according to claim 14 , wherein each output end of the plurality of conductors is connected to the output connector via a wire, and the wires have the same diameter and length. 17 . The inverter current-sharing output structure according to claim 14 , wherein the current flux through each of the output paths is uniform. 18 . The inverter current-sharing output structure according to claim 11 , wherein a cross-sectional area along a center line of each of the conductive strips is uniform.

19. An inverter current sharing output structure, comprising: a plurality of power output components, each of the power output components comprising a pair of power conversion modules, the plurality of power conversion modules being arranged side by side in a row; and A bus component has multiple conductors, each of which is configured to correspond to each of the power output components. Each of the conductors includes an output end and two pairs of branch ends extending from the output end. Each pair of branch ends is respectively connected to each of the power conversion modules in the corresponding power output component, wherein a gap is provided on the edge of the conductor between the two pairs of branch ends.

20. The inverter current-sharing output structure according to claim 19 further comprises an output connector, wherein the output end of each conductor is electrically connected to the output connector, an output path is defined between each branch end and the output connector, and the lengths of the multiple output paths are substantially the same.

21. The inverter current-sharing output structure according to claim 20, wherein the current flux through each of the output paths is uniform.

22. The inverter current sharing output structure according to claim 20, wherein the output ends of the plurality of conductors are respectively connected to the output connector. 23 . The inverter current sharing output structure according to claim 20 , wherein each output end of the plurality of conductors is connected to the output connector via a wire, and the wire diameters and lengths of the plurality of wires are the same.

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