CN209982943U - Composite busbar with adjustable absorption capacitor - Google Patents
Composite busbar with adjustable absorption capacitor Download PDFInfo
- Publication number
- CN209982943U CN209982943U CN201822060382.3U CN201822060382U CN209982943U CN 209982943 U CN209982943 U CN 209982943U CN 201822060382 U CN201822060382 U CN 201822060382U CN 209982943 U CN209982943 U CN 209982943U
- Authority
- CN
- China
- Prior art keywords
- absorption
- capacitor
- terminal
- composite busbar
- absorption capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model belongs to the technical field of electron electricity, a compound female row that is equipped with adjustable absorption capacitance is related to, compound female first side of arranging is equipped with electric coupling assembling, and the second side adjacent with first side is equipped with absorption capacitance, and the second side still is equipped with compound female positive plate leading-out terminal of arranging, and the third side relative with the second side is provided with the binding post of absorption resistance, and absorption resistance's binding post connects absorption resistance and is connected formation RC and absorbs the return circuit with absorption capacitance. According to the composite busbar, the absorption capacitor is assembled on the side pin of the composite busbar, so that the heat dissipation of the composite busbar is not influenced, the independently assembled cable connection is reduced, and the design is simplified; under the condition that other components such as the composite busbar and the like are not disassembled, the absorption capacitors can be flexibly disassembled and assembled, the number or series-parallel connection mode of the absorption capacitors is changed, the purpose of adjusting the capacitance value of the absorption capacitors according to actual application conditions is achieved, the optimal matching of the capacitance value of the absorption capacitors is completed, and the absorption capacity of an RC loop is improved.
Description
Technical Field
The invention belongs to the technical field of electronics and electricity, relates to a composite busbar, and particularly relates to a composite busbar assembled with an adjustable absorption capacitor.
Background
In the switching process of the high-power device, due to the influence of parasitic inductance and self inductance of the power device, high peak voltage can be generated, and the peak voltage can overheat the device and even exceed the rated safe working area of the device to be damaged. Therefore, a composite busbar design is provided, that is, the direct current bus bars are made into flat sections and are stacked together to reduce parasitic inductance, so that the working reliability of the IGBT and diode power devices is improved.
In order to ensure safe operation of other power devices such as an IGBT and a diode, a composite busbar is generally used for electrical connection to reduce stray inductance of a system, and an RC resistance-capacitance absorption loop is connected in parallel at two ends of other power devices such as an IGBT or a diode and used for absorbing peak voltage and protecting the power devices from reliable operation. In practical application, the value of the absorption capacitor is affected by various conditions such as power quality, stray inductance, transformer leakage inductance, matching degree with the absorption resistor and the like, only an approximate value range can be determined through calculation, and usually, the optimal value is obtained through testing according to practical application working conditions, so that new requirements are provided for the assembly simplicity of the absorption capacitor and the convenience of adjustment of the series-parallel connection mode of the absorption capacitor.
The installation connection mode of the existing composite busbar and the absorption capacitor comprises the following steps: 1. the composite busbar and the absorption capacitor are structurally independent from each other and are respectively assembled to the power electronic device and then connected, so that the mounting structure of the whole component is not compact, the space utilization rate is low, the miniaturization design target is not favorably realized, the composite busbar and the absorption capacitor are connected through cables or copper bars, and the maintenance time and the cost are increased. 2. The absorption capacitor is arranged at the opening on the surface of the composite busbar, the absorption capacitor is arranged above the busbar, the capacitor terminal penetrates through the composite busbar and is fixed on a fixing nut at the other end of the composite busbar, and the fixing nut is positioned below the composite busbar; in the connection mode, as the capacitor terminal penetrates through the composite bus bar to be connected with the fixing nut, the whole composite bus bar needs to be disassembled when the capacitor is replaced, and the installation and maintenance are inconvenient; the composite busbar and the capacitor can generate heat in the operation process of the whole device, and the capacitor is arranged on the surface of the composite busbar and is not beneficial to heat dissipation; in addition, when the capacitor selection is inappropriate, the total value of the capacitor is inconvenient to adjust by changing the series-parallel connection mode.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a composite busbar assembled with an adjustable absorption capacitor, and the composite busbar and the absorption capacitor are optimally designed and assembled in a power electronic device, so that the absorption capacitor is convenient to disassemble and assemble, the number of the absorption capacitors and the serial-parallel connection mode can be easily adjusted, the usability and maintainability of the composite busbar are improved, and the design purposes of miniaturization and light weight are achieved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a compound female arranging that is equipped with adjustable absorption capacitance, the first side that compound female arranged is equipped with electrical connection subassembly, with the adjacent second side of first side is equipped with the absorption capacitance, the second side still is equipped with compound female positive plate leading-out terminal of arranging, with the third side that the second side is relative is provided with the binding post of absorption resistance, the binding post connecting resistance of absorption resistance is connected with the absorption capacitance and is formed RC absorption loop.
Further, the electrical connection assembly includes four electrical connection terminals.
Furthermore, one end of the absorption resistor is connected with the fixed terminal of the absorption capacitor through a wire harness, and the other end of the absorption resistor is connected with a wiring terminal of the absorption resistor on the composite busbar to form an RC absorption loop.
Further, electrical connection subassembly includes a plurality of electrical connection terminal, absorption capacitor assembles in the second side of compound female arranging through a plurality of absorption capacitor fixed terminal, install electric capacity C between positive plate leading-out terminal and an absorption capacitor fixed terminal1A capacitor C is arranged between two adjacent absorption capacitor fixed terminals2One end of the absorption resistor is connected with the fixed terminal of the absorption capacitor through a wire harness, and the other end of the absorption resistor is connected with a wiring terminal of the absorption resistor on the composite busbar to form an RC absorption loop.
Furthermore, the number of the absorption capacitors is two, the absorption capacitor fixing terminals include a first absorption capacitor fixing terminal, a second absorption capacitor fixing terminal and a third absorption capacitor fixing terminal, and a capacitor C is installed between the positive plate leading-out terminal and the first absorption capacitor fixing terminal1A capacitor C is arranged between the second absorption capacitor fixed terminal and the third absorption capacitor fixed terminal2And one end of the absorption resistor is connected with the third absorption capacitor fixing terminal through a wire harness, and the other end of the absorption resistor is connected with a wiring terminal of the absorption resistor on the composite busbar to form an RC absorption loop.
Further, the connection mode of the two absorption capacitors includes series connection or parallel connection, specifically: the first absorption capacitor fixing terminal and the second absorption capacitor fixing terminal are connected through a copper bar, namely the two absorption capacitors are connected in series; or the positive plate leading-out terminal is connected with the third absorption capacitor fixing terminal through a copper bar, namely the two absorption capacitors are connected in parallel.
The number of the absorption capacitors is three, the absorption capacitor fixing terminals include a first absorption capacitor fixing terminal, a second absorption capacitor fixing terminal, a third absorption capacitor fixing terminal, a fourth absorption capacitor fixing terminal and a fifth absorption capacitor fixing terminal, and a capacitor C is installed between the positive plate leading-out terminal and the first absorption capacitor fixing terminal1A capacitor C is arranged between the second absorption capacitor fixed terminal and the third absorption capacitor fixed terminal2The fourth absorption capacitor fixing endA capacitor C is arranged between the fixed terminal of the sub-capacitor and the fixed terminal of the fifth absorption capacitor3And one end of the absorption resistor is connected with the fifth absorption capacitor fixing terminal through a wire harness, and the other end of the absorption resistor is connected with a wiring terminal of the absorption resistor on the composite busbar to form an RC absorption loop.
Further, the connection mode of the three absorption capacitors includes: the three absorption capacitors are connected in series and in parallel, and the capacitance value of the absorption capacitor is adjusted by changing the connection mode of the three absorption capacitors.
Furthermore, the positive plate leading-out terminal is connected with a plate electrode of the composite busbar, and the first absorption capacitor fixing terminal, the second absorption capacitor fixing terminal, the third absorption capacitor fixing terminal, the fourth absorption capacitor fixing terminal and the fifth absorption capacitor fixing terminal are all mechanical leading-out ends.
Compared with the prior art, the invention has the following beneficial effects: according to the composite busbar provided with the adjustable absorption capacitor, the absorption capacitor is assembled on the second side face of the composite busbar, so that the heat dissipation of the busbar is not influenced, the cable connection of independent assembly is reduced, and the design is simplified; under the condition that other components such as a busbar and the like are not disassembled, the absorption capacitors can be flexibly disassembled and assembled, the number or series-parallel connection mode of the absorption capacitors is changed, the purpose of adjusting the capacitance values of the absorption capacitors according to actual application conditions is achieved, the optimal matching of the capacitance values of the absorption capacitors is completed, and the absorption capacity of an RC loop is improved.
In addition, the composite busbar can be designed to adjust the capacitance value of the absorption capacitors in a mode of connecting three or more absorption capacitors according to the actual application requirement; when the reliability, the availability and the maintainability of the power electronic device are improved, the installation and the connection are more convenient and quicker, the structure of the device is further simplified, the volume is reduced, the space utilization rate is improved, and convenience is brought to the disassembly, the installation and the later maintenance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a composite busbar equipped with two adjustable absorption capacitors according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a composite busbar equipped with three adjustable absorption capacitors according to embodiment 2 of the present invention;
fig. 3 is a schematic diagram of a rectification circuit of an RC absorption circuit according to embodiment 3 of the present invention;
fig. 4 is a schematic diagram of a rectification circuit with an RC absorption loop according to embodiment 3 of the present invention;
fig. 5 is a schematic view of a series connection copper bar on a composite busbar according to embodiment 3 of the present invention;
fig. 6 is a schematic diagram of series connection absorption capacitors on a composite busbar according to embodiment 3 of the present invention;
fig. 7 is a schematic view of parallel-connected copper bars on a composite busbar according to embodiment 3 of the present invention;
fig. 8 is a schematic diagram of parallel connection absorption capacitors on a composite busbar according to embodiment 3 of the present invention.
Wherein: 1 is a composite busbar; 2 is an electrical connection component; 3 is an absorption capacitor; 4 is a connecting terminal of the absorption resistor; 5 is a positive plate leading-out terminal; 6 is an electrical connection terminal; 7 is an absorption capacitor fixed terminal; 8 is a first absorption capacitor fixing terminal; 9 is a second absorption capacitor fixed terminal; 10 is a third absorption capacitor fixed terminal; 11 is a fourth absorption capacitor fixed terminal; reference numeral 12 denotes a fifth absorption capacitor fixing terminal.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, the invention provides a composite busbar equipped with an adjustable absorption capacitor, wherein an electrical connection assembly 2 is arranged on a first side surface of the composite busbar 1, an absorption capacitor 3 is equipped on a second side surface adjacent to the first side surface, a positive plate leading-out terminal 5 of the composite busbar 1 is further arranged on the second side surface, a connection terminal 4 of an absorption resistor is arranged on a third side surface opposite to the second side surface, and the connection terminal 4 of the absorption resistor is connected with the absorption resistor and the absorption capacitor 3 to form an RC absorption loop.
Further, the electrical connection assembly 2 includes four electrical connection terminals 6, and the four electrical connection terminals 6 are electrical input and output terminals of the composite busbar.
Furthermore, one end of the absorption resistor is connected with the fixed terminal of the absorption capacitor through a wire harness, and the other end of the absorption resistor is connected with the wiring terminal 4 of the absorption resistor on the composite busbar, so that an RC absorption loop is formed.
Furthermore, the absorption capacitor 3 is assembled on the second side surface of the composite busbar 1 through a plurality of absorption capacitor fixing terminals 7, and a capacitor C is arranged between the positive plate leading-out terminal 5 and one absorption capacitor fixing terminal 71A capacitor C is arranged between two adjacent absorption capacitor fixed terminals 72And the connecting terminal 4 of the absorption resistor is connected with the fixed terminal 7 of the absorption capacitor through a wire harness to form an RC absorption loop.
Further, the absorption capacitor 3 includes two absorption capacitors and four fixed terminals 7, wherein the terminal on the second side surface is the positive plate leading-out terminal 5 of the composite busbar, and the three terminals below the positive plate leading-out terminal 5, i.e., the first absorption capacitor fixed terminal 8, the second absorption capacitor fixed terminal 9 and the third absorption capacitor fixed terminal 10, are not connected to the plate electrode of the composite busbar and are only mechanical leading-out terminals.
In practical application, a capacitor C is arranged between the positive plate leading-out terminal 5 and the first absorption capacitor fixing terminal 81A capacitor C is arranged between the second absorption capacitor fixing terminal 9 and the third absorption capacitor fixing terminal 102One end of the absorption resistor is connected with a third absorption capacitor fixing terminal 10 through a wire harness, and the other end of the absorption resistor is connected with a wiring terminal 4 of the absorption resistor on the composite busbar to form an RC absorption loop;
1) if the first absorption capacitor fixing terminal 8 and the second absorption capacitor fixing terminal 9 are connected by a small copper bar, the capacitor C1And C2In series, the total capacitance value C ═ C1*C2)/(C1+C2)；
2) If the positive plate leading-out terminal 5 and the third absorption capacitor fixing terminal 10 are connected by a small copper bar, the capacitor C1And C2In parallel, the total capacitance value C is C1+C2。
According to the test debugging result of the assembled power electronic device, the total capacitance value of the RC absorption loop can be flexibly adjusted in the following modes under the condition that the composite busbar is not disassembled: 1. replacement of absorption capacitor C1、C2(ii) a 2. Increasing or decreasing the number of capacitors; 3. in the existing capacitor C1、C2Under the condition of not replacing, the total capacitance value is adjusted by adjusting the series-parallel connection mode of the capacitor, so that the aim of adjusting the total capacitance value of the absorption capacitor according to the actual application condition is fulfilled, the optimal matching of the capacitance value of the absorption capacitor is completed, and the absorption capacity of an RC loop is improved; when the reliability, the availability and the maintainability of the power electronic device are improved, the installation and the connection are more convenient and quicker, the structure of the device is further simplified, the volume is reduced, the space utilization rate is improved, and convenience is brought to the disassembly, the installation and the later maintenance.
Example 2
Referring to fig. 2, the invention provides a composite busbar equipped with an adjustable absorption capacitor, wherein an electrical connection assembly 2 is arranged on a first side surface of a composite busbar 1, an absorption capacitor 3 is equipped on a second side surface adjacent to the first side surface, a positive plate leading-out terminal 5 of the composite busbar 1 is further arranged on the second side surface, a connection terminal 4 of an absorption resistor is arranged on a third side surface opposite to the second side surface, and the connection terminal 4 of the absorption resistor is connected with the absorption resistor and the absorption capacitor 3 to form an RC absorption loop.
Further, the electrical connection assembly 2 includes four electrical connection terminals 6, and the four electrical connection terminals 6 are electrical input and output terminals of the composite busbar.
Furthermore, the absorption capacitor 3 is assembled on the second side surface of the composite busbar 1 through a plurality of absorption capacitor fixing terminals 7, and a capacitor C is arranged between the positive plate leading-out terminal 5 and one absorption capacitor fixing terminal 71A capacitor C is arranged between two adjacent absorption capacitor fixed terminals 72And the connecting terminal 4 of the absorption resistor is connected with the fixed terminal 7 of the absorption capacitor through a wire harness to form an RC absorption loop.
Further, the number of the absorption capacitors 3 is three, the absorption capacitor fixing terminal 7 includes a first absorption capacitor fixing terminal 8, a second absorption capacitor fixing terminal 9, a third absorption capacitor fixing terminal 10, a fourth absorption capacitor fixing terminal 11, and a fifth absorption capacitor fixing terminal 12, and a capacitor C is installed between the positive plate leading terminal 5 and the first absorption capacitor fixing terminal 81A capacitor C is arranged between the second absorption capacitor fixing terminal 9 and the third absorption capacitor fixing terminal 102A capacitor C is arranged between the fourth absorption capacitor fixing terminal 11 and the fifth absorption capacitor fixing terminal 123And a connecting resistor of a connecting terminal 4 of the absorption resistor is connected with a fifth absorption capacitor fixed terminal 12 through a wire harness to form an RC absorption loop.
Furthermore, one end of the absorption resistor is connected with the fixed terminal 12 of the fifth absorption capacitor through a wire harness, and the other end of the absorption resistor is connected with the wiring terminal 4 of the absorption resistor on the composite busbar, so that an RC absorption loop is formed.
In practical application, a capacitor C is arranged between the positive plate leading-out terminal 5 and the first absorption capacitor fixing terminal 81A capacitor C is arranged between the second absorption capacitor fixing terminal 9 and the third absorption capacitor fixing terminal 102Fourth absorption capacitor fixed terminal 11 and fifth absorption capacitorA capacitor C is arranged between the capacitor fixing terminals 123And a connecting resistor of a connecting terminal 4 of the absorption resistor is connected with a fifth absorption capacitor fixed terminal 12 through a wire harness to form an RC absorption loop. In addition, in the existing capacitor C1、C2、C3Under the condition of not changing, the total capacitance value can be adjusted by adjusting the series-parallel connection mode of the capacitor, so that the purpose of adjusting the total capacitance value of the absorption capacitor according to the actual application condition is achieved, and the method specifically comprises the following steps:
1) capacitor C1And C2And C3Series connection: if the first absorption capacitor fixing terminal 8 and the second absorption capacitor fixing terminal 9, the third absorption capacitor fixing terminal 10 and the fourth absorption capacitor fixing terminal are respectively connected by 11 small copper bars, the capacitor C is realized1And C2And C3In series connection, the total capacitance value C is 1/(1/C)1+1/C2+1/C3)＝(C1*C2*C3)/(C2C3+C1C3+C1C2)；
2) Capacitor C1And C2And C3Parallel connection: if the second absorption capacitor terminal 9, the third absorption capacitor terminal 11 and the first absorption capacitor terminal 5 are connected by U-shaped small copper bars, the first absorption capacitor terminal 8, the second absorption capacitor terminal 10 and the third absorption capacitor terminal 12 are connected by U-shaped small copper bars, so that the capacitor C is realized1And C2And C3In parallel, the total capacitance value C is C1+C2+C3；
3) Capacitor C1And C2In series with C3Parallel connection, the first absorption capacitor fixing terminal 8 and the second absorption capacitor fixing terminal 9 are connected by a small copper bar, then C1And C2Serially connecting the first absorption capacitor terminal 5 with the third absorption capacitor terminal 11 via U-shaped copper bar, and respectively connecting the second absorption capacitor terminal 10 with the third absorption capacitor terminal 12 via U-shaped copper bar to realize series C1、C2And C3In parallel, the total capacitance value C ═ C1*C2)/(C1+C2)+C3；
4) Capacitor C2And C3In series with C1Parallel connection: connecting the second absorption capacitor fixing terminal 10 with the third absorption capacitor fixing terminal 11 by a small copper bar, then C2And C3Serially connecting the first and second absorption capacitor terminals 5 and 9 via U-shaped copper bars and the first and third absorption capacitor terminals 8 and 12 via U-shaped copper bars to realize series C2、C3And C1In parallel, the total capacitance value C ═ C2*C3)/(C2+C3)+C1。
According to the test debugging result of the assembled power electronic device, the total capacitance value of the RC absorption loop can be flexibly adjusted in the following modes under the condition that the composite busbar is not disassembled: 1. replacement of absorption capacitor C1、C2、C3(ii) a 2. Increasing or decreasing the number of capacitors; 3. in the existing capacitor C1、C2、C3Under the condition of not replacing, the total capacitance value is adjusted by adjusting the series-parallel connection mode of the capacitor, so that the aim of adjusting the total capacitance value of the absorption capacitor according to the actual application condition is fulfilled, the optimal matching of the capacitance value of the absorption capacitor is completed, and the absorption capacity of an RC loop is improved; when the reliability, the availability and the maintainability of the power electronic device are improved, the installation and the connection are more convenient and quicker, the structure of the device is further simplified, the volume is reduced, the space utilization rate is improved, and convenience is brought to the disassembly, the installation and the later maintenance.
Example 3
The embodiment provides a composite busbar equipped with an adjustable absorption capacitor, which is applied to a rectifying circuit of a rail transit power module, and a schematic diagram of the composite busbar is shown in fig. 3. This embodiment will assemble originally in the absorption capacitance 3 of frame, water-cooling base plate or compound female row surface 1 and improve, refer to fig. 4, and diode and absorption resistance are all installed on the radiator, are equipped with compound female row 1 on it and carry out electrical connection, and absorption capacitance 3 assembles in the side pin of compound female row 1, and absorption resistance and compound female row 1, absorption resistance and absorption capacitance 3 all are connected through the pencil.
According to application condition parameters, calculating and selecting the absorption capacitance with nf-level values, preliminarily selecting two 100nf absorption capacitances 3 for assembly, wherein the specific connection mode comprises the following steps:
1. the series connection mode is as follows:
as shown in fig. 5, the first absorption capacitor fixing terminal 8 and the second absorption capacitor fixing terminal 9 of the composite busbar 1 are connected by a small copper bar to realize the series connection of the two absorption capacitors 3; the positive plate leading-out terminal 5 of the composite busbar 1 is connected with a plate electrode of the composite busbar 1, and the first absorption capacitor fixing terminal 8, the second absorption capacitor fixing terminal 9 and the third absorption capacitor fixing terminal 10 are not connected with the busbar plate electrode and are only mechanical leading-out ends; then, two absorption capacitors 3 of 100nf are mounted on the composite busbar 1, and as shown in fig. 6, the total capacitance value C ═ C (C) after series connection1*C2)/(C1+C2)＝50nf。
2. The parallel connection mode is as follows:
as shown in fig. 7, the positive plate leading-out terminal 5 of the composite busbar 1 and the third absorption capacitor fixing terminal 10 are connected by a small copper bar to realize the parallel connection of the two absorption capacitors 3; the positive plate leading-out terminal 5 of the composite busbar 1 is connected with a plate electrode of the composite busbar 1, and the first absorption capacitor fixing terminal 8, the second absorption capacitor fixing terminal 9 and the third absorption capacitor fixing terminal 10 are not connected with the busbar plate electrode and are only mechanical leading-out ends; then, two absorption capacitors 3 of 100nf are mounted on the composite busbar 1, as shown in fig. 7, and the total capacitance value C ═ C after parallel connection1+C2＝200nf。
The traditional connection mode is characterized in that holes are formed in the surface of the composite busbar 1, or a space is reserved on a power electronic device for assembling the absorption capacitor 3, so that the traditional connection mode occupies space, is inconvenient to disassemble, assemble and maintain, especially cannot adjust the capacitance value according to the system operation condition, and is low in usability. The invention designs a composite busbar assembled with an adjustable absorption capacitor, wherein only a positive plate leading-out terminal 5 is connected with a plate electrode of a composite busbar 1, a first absorption capacitor fixing terminal 8, a second absorption capacitor fixing terminal 9 and a third absorption capacitor fixing terminal 10 are all mechanical leading-out terminals, the series connection and the parallel connection of the absorption capacitors 3 are respectively realized through two small copper bars shown in fig. 5 and 7, the absorption capacitors 3 can be flexibly disassembled and assembled under the condition that the composite busbar 1 and other components are not disassembled, the quantity or the series-parallel connection mode of the absorption capacitors 3 is changed, the capacitance value of the absorption capacitor is adjusted according to actual application conditions, the optimal matching of the capacitance value is realized, and the absorption capacity of an RC (resistor-capacitor) loop is improved.
Similarly, according to the actual application requirement, the composite busbar 1 can also be designed to adjust the capacitance value of the absorption capacitor 3 in a manner of connecting three or more absorption capacitors 3.
In summary, according to the composite busbar provided with the adjustable absorption capacitor, the absorption capacitor 3 is assembled on the side pin of the composite busbar 1, so that the heat dissipation of the composite busbar 1 is not affected, the cable connection of independent assembly is reduced, and the design is simplified; under the condition that other components such as the composite busbar 1 and the like are not disassembled, the absorption capacitors 3 can be flexibly disassembled and assembled, the number or series-parallel connection mode of the absorption capacitors 3 is changed, the purpose of adjusting the capacitance values of the absorption capacitors 3 according to actual application conditions is achieved, the optimal matching of the capacitance values of the absorption capacitors 3 is completed, and the absorption capacity of an RC loop is improved.
In addition, the invention improves the reliability, the availability and the maintainability of the power electronic device, simultaneously, the installation and the connection are more convenient and quicker, the structure of the device is further simplified, the volume is reduced, the space utilization rate is improved, and the convenience is provided for the disassembly, the installation and the later maintenance.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. The utility model provides a compound female arranging that is equipped with adjustable absorption capacitance, its characterized in that, the first side of compound female arranging (1) is equipped with electrical connection subassembly (2), with the second side that first side is adjacent is equipped with absorption capacitance (3), the second side still is equipped with positive plate leading-out terminal (5) that compound female arranging (1), with the third side that the second side is relative is provided with binding post (4) of absorption resistance, binding post (4) of absorption resistance are connected absorption resistance and are connected formation RC and absorb the return circuit with absorption capacitance (3).
2. The composite busbar equipped with adjustable absorption capacitors according to claim 1, wherein the electrical connection assembly (2) comprises four electrical connection terminals.
3. The composite busbar with the adjustable absorption capacitor according to claim 1, wherein one end of the absorption resistor is connected with a fixed terminal of the absorption capacitor through a wiring harness, and the other end of the absorption resistor is connected with a wiring terminal (4) of the absorption resistor on the composite busbar (1) to form an RC absorption loop.
4. The composite busbar with the adjustable absorption capacitors as claimed in claim 1, wherein the electrical connection assembly (2) comprises a plurality of electrical connection terminals (6), the absorption capacitors (3) are assembled on the second side surface of the composite busbar (1) through a plurality of absorption capacitor fixing terminals (7), and a capacitor C is installed between the positive plate leading-out terminal (5) and one absorption capacitor fixing terminal (7)1A capacitor C is arranged between two adjacent absorption capacitor fixed terminals (7)2And the wiring terminal (4) of the absorption resistor is connected with the absorption resistor and is connected with the fixed terminal (7) of the absorption capacitor through a wiring harness to form an RC absorption loop.
5. The composite busbar with the adjustable absorption capacitors as claimed in claim 4, wherein the number of the absorption capacitors (3) is two, the absorption capacitor fixing terminals (7) comprise a first absorption capacitor fixing terminal (8), a second absorption capacitor fixing terminal (9) and a third absorption capacitor fixing terminal (10), and a capacitor C is mounted between the positive plate leading-out terminal (5) and the first absorption capacitor fixing terminal (8)1A capacitor C is arranged between the second absorption capacitor fixed terminal (9) and the third absorption capacitor fixed terminal (10)2And the wiring terminal (4) of the absorption resistor is connected with the absorption resistor and is connected with the third absorption capacitor fixed terminal (10) through a wiring harness to form an RC absorption loop.
6. The composite busbar equipped with the adjustable absorption capacitors as claimed in claim 5, wherein the two absorption capacitors (3) are connected in series or in parallel.
7. The composite busbar equipped with the adjustable absorption capacitor according to claim 5, wherein the positive plate leading-out terminal (5) is connected with a plate electrode of the composite busbar (1), and the first absorption capacitor fixing terminal (8), the second absorption capacitor fixing terminal (9) and the third absorption capacitor fixing terminal (10) are all mechanical leading-out terminals.
8. The composite busbar with the adjustable absorption capacitors according to claim 4, wherein the number of the absorption capacitors (3) is three, the absorption capacitor fixing terminals (7) comprise a first absorption capacitor fixing terminal (8), a second absorption capacitor fixing terminal (9), a third absorption capacitor fixing terminal (10), a fourth absorption capacitor fixing terminal (11) and a fifth absorption capacitor fixing terminal (12), and a capacitor C is installed between the positive plate leading-out terminal (5) and the first absorption capacitor fixing terminal (8)1A capacitor C is arranged between the second absorption capacitor fixed terminal (9) and the third absorption capacitor fixed terminal (10)2A capacitor C is arranged between the fourth absorption capacitor fixed terminal (11) and the fifth absorption capacitor fixed terminal (12)3And the wiring terminal (4) of the absorption resistor is connected with the absorption resistor and is connected with the fifth absorption capacitor fixed terminal (12) through a wiring harness to form an RC absorption loop.
9. The composite busbar equipped with adjustable absorption capacitors as claimed in claim 8, wherein the connection mode of the three absorption capacitors (3) comprises: series connection and parallel connection.
10. The composite busbar equipped with the adjustable absorption capacitor according to claim 8, wherein the positive plate leading-out terminal (5) is connected with a plate electrode of the composite busbar (1), and the first absorption capacitor fixing terminal (8), the second absorption capacitor fixing terminal (9), the third absorption capacitor fixing terminal (10), the fourth absorption capacitor fixing terminal (11) and the fifth absorption capacitor fixing terminal (12) are all mechanical leading-out terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060382.3U CN209982943U (en) | 2018-12-10 | 2018-12-10 | Composite busbar with adjustable absorption capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060382.3U CN209982943U (en) | 2018-12-10 | 2018-12-10 | Composite busbar with adjustable absorption capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209982943U true CN209982943U (en) | 2020-01-21 |
Family
ID=69250333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822060382.3U Active CN209982943U (en) | 2018-12-10 | 2018-12-10 | Composite busbar with adjustable absorption capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209982943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561618A (en) * | 2018-12-10 | 2019-04-02 | 西安中车永电电气有限公司 | A kind of composite bus bar being equipped with adjustable Absorption Capacitance |
-
2018
- 2018-12-10 CN CN201822060382.3U patent/CN209982943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561618A (en) * | 2018-12-10 | 2019-04-02 | 西安中车永电电气有限公司 | A kind of composite bus bar being equipped with adjustable Absorption Capacitance |
| CN109561618B (en) * | 2018-12-10 | 2024-03-26 | 西安中车永电电气有限公司 | Composite busbar with adjustable absorption capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102025261B (en) | Air-cooled converter power module system | |
| CN104167933B (en) | The new power converter unit that lamination spraying row is used in mixed way with composite bus bar | |
| CN204030990U (en) | Lamination spraying row mixes the new power converter unit using with composite bus bar | |
| CN108075620B (en) | High-power unit structure formed by IGCT thyristors | |
| CN112787485A (en) | High-frequency DC-DC converter module and auxiliary converter system | |
| CN209982943U (en) | Composite busbar with adjustable absorption capacitor | |
| CN112187038A (en) | Integrated EMI filter for electric vehicle motor controller | |
| CN114006532B (en) | Current transformer | |
| CN103036221B (en) | Bus capacitance module and power unit | |
| CN114088986B (en) | Dynamic test board for needle-shaped terminal half-bridge type power module | |
| CN213151907U (en) | Integrated EMI filter for electric vehicle motor controller | |
| CN109561618B (en) | Composite busbar with adjustable absorption capacitor | |
| CN107911033B (en) | Design method for optimizing total stray inductance of main circuit and locomotive variable-current power unit | |
| CN103354231A (en) | IGBT power unit and sub-module for VSC-HVDC (voltage source converter high voltage direct current) | |
| CN201976383U (en) | Mounting device of IGBT component for welding machine | |
| CN203339969U (en) | Power unit main loop structure and high-voltage frequency converter | |
| CN214707494U (en) | Power unit structure of high-voltage frequency converter | |
| CN111211665B (en) | Composite busbar | |
| CN101729049A (en) | Thyristor valve body suitable for high pressure solid composite switching device | |
| CN112117917B (en) | Low-noise-sense three-level power conversion device based on crimping type IGBT | |
| CN101420173A (en) | Input rectifying/filtering circuit capacitor board in large power switch power supply | |
| CN207910672U (en) | High voltage transducer power unit structure | |
| CN109586244B (en) | IGBT full-bridge symmetrical low-inductance module for circuit breaker | |
| CN210693785U (en) | High-power diode clamping type three-level unit structure | |
| CN111224535A (en) | Capacitor series bus bar for testing dynamic characteristics of crimping type power module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |