CN113571975A - Copper bar assembly and electronic equipment - Google Patents
Copper bar assembly and electronic equipment Download PDFInfo
- Publication number
- CN113571975A CN113571975A CN202110829978.9A CN202110829978A CN113571975A CN 113571975 A CN113571975 A CN 113571975A CN 202110829978 A CN202110829978 A CN 202110829978A CN 113571975 A CN113571975 A CN 113571975A
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- Prior art keywords
- copper bar
- pin
- shield
- pins
- bar assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
- H01R13/6588—Shielding material individually surrounding or interposed between mutually spaced contacts with through openings for individual contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
- H01R25/162—Electrical connections between or with rails or bus-bars
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a copper bar assembly and electronic equipment, wherein the copper bar assembly comprises a first copper bar and a second copper bar, the first copper bar comprises a first copper bar main body and at least two pins which are connected with the first copper bar main body, and the first copper bar main body is connected with the second copper bar; the copper bar subassembly still includes: a first shield, and/or a second shield, and/or a third shield; at least one pin is wrapped up by first shielding piece, and the second shielding piece wraps up in the second copper bar, and the third shielding piece wraps up in first copper bar main part. The copper bar assembly improves the current uniformity of each parallel branch.
Description
Technical Field
The invention relates to the technical field of electric device connection, in particular to a copper bar assembly and electronic equipment.
Background
In electronic devices such as inverters, copper bars are generally used to connect electric devices. The current sharing of the electric devices needs to be considered when the at least two devices are connected in parallel, and the design of the copper bar has great influence on the current sharing, for example, the current sharing of each electric device can be influenced by the copper bar on the alternating current output side.
Specifically, electromagnetic fields of the pins of the busbar are interfered with each other, so that the parallel branches are not uniform; the copper bar that converges is connected with the output copper bar, and the electromagnetic field between output copper bar and the copper bar that converges can influence each other, also can lead to each parallelly connected branch road not to flow equalize.
In addition, for the bus bar, when the difference between the parasitic inductance of the connection point of the electric device and the bus point of the bus bar is large, the current of each parallel branch circuit is not uniform.
In summary, those skilled in the art need to solve the above problems how to provide a copper bar assembly to improve the current sharing performance of each parallel branch.
Disclosure of Invention
The invention aims to provide a copper bar assembly to improve the current uniformity of each parallel branch. Another object of the present invention is to provide an electronic device including the above copper bar assembly.
In order to achieve the above purpose, the invention provides the following technical scheme:
a copper bar assembly comprises a first copper bar and a second copper bar, wherein the first copper bar comprises a first copper bar main body and at least two pins which are connected with the first copper bar main body, and the first copper bar main body is connected with the second copper bar;
the copper bar subassembly still includes: a first shield, and/or a second shield, and/or a third shield; at least one the pin by first shielding piece parcel, the second shielding piece parcel in the second copper bar, the third shielding piece parcel in first copper bar main part.
Optionally, the first shielding element is in one-to-one correspondence with the pins.
Optionally, the first shielding element extends from the end of the pin connected with the first copper bar main body to a connection end B of the pin, where the connection end B is the end of the pin used for being connected with an electric device.
Optionally, the first shield is provided with a first grounding structure, and/or the second shield is provided with a second grounding structure, and/or the third shield is provided with a third grounding structure.
Optionally, the first copper bar body is provided with a connecting end a connected with the second copper bar, all the pins are located on the same side of the connecting end a, and all the pins are symmetrically arranged about the connecting end a.
Optionally, the connection terminals B of all the pins are distributed along an inverted V shape, and the connection terminals B are used for connecting with the electric device.
Optionally, the connection ends B of any two pins are on the same arc, and the center of the arc is the connection end a.
Optionally, the first copper bar main body is provided with a partition through hole, the partition through hole penetrates through the first copper bar main body along the thickness direction of the first copper bar main body, and the partition hole extends from the middle part of the pin to the two sides of the pin.
Optionally, two ends of the partition through hole are close to the pins, and the middle of the partition through hole is far away from the pins.
Optionally, the first copper bar is a busbar bar, and the second copper bar is an output copper bar.
Optionally, the first copper bar is a shunting copper bar, and the second copper bar is an input copper bar.
According to the copper bar assembly provided by the invention, the first shielding piece, the second shielding piece and/or the third shielding piece are arranged, and at least one pin of the first copper bar is wrapped by the first shielding piece, so that the influence of an electromagnetic field of the pin on current equalization can be reduced, and the current equalization of each parallel branch is improved; the second shielding piece wraps the second copper bar, so that the mutual influence of the electromagnetic field between the first copper bar and the second copper bar is reduced, and the flow uniformity of each parallel branch is improved; the third shielding piece wraps the first copper bar main body, so that the mutual influence of the electromagnetic field between the first copper bar and the second copper bar is reduced, and the current uniformity of each parallel branch is improved. Therefore, the copper bar assembly improves the current sharing performance of each parallel branch.
Based on the copper bar assembly, the invention further provides electronic equipment which comprises the copper bar assembly, wherein the copper bar assembly is any one of the copper bar assemblies.
Optionally, the electronic device is an inverter.
Drawings
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a copper bar assembly according to an embodiment of the present invention;
FIG. 2 is an exploded view of the structure shown in FIG. 1;
fig. 3 is another schematic structural diagram of the copper bar assembly according to the embodiment of the present invention;
fig. 4 is another schematic structural diagram of the copper bar assembly according to the embodiment of the present invention;
fig. 5 is another schematic structural diagram of the copper bar assembly according to the embodiment of the present invention;
fig. 6 is another schematic structural diagram of the copper bar assembly according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the copper bar assembly provided by the embodiment of the present invention includes a first copper bar 2 and a second copper bar 3, the first copper bar 2 includes a first copper bar main body 26 and at least two pins connected to the first copper bar main body 26, and the first copper bar main body 26 is connected to the second copper bar 3. It will be appreciated that any two pins are arranged in parallel.
Above-mentioned copper bar subassembly still includes: the first shield 5, and/or the second shield 4, and/or the third shield 6; at least one pin is wrapped up by first shield 5, and second shield 4 wraps up in second copper bar 3, and third shield 6 wraps up in first copper bar main part 26.
Specifically, the above-mentioned copper bar assembly comprises a first shield 5, as shown in fig. 3; or, the copper bar assembly comprises a second shielding piece 4, as shown in fig. 1 and 2; or, the copper bar assembly comprises a third shielding piece 6; or, the above-mentioned copper bar assembly includes the first shield 5 and the second shield 4, as shown in fig. 4 and 5; or, the copper bar assembly comprises a third shielding piece 6 and a second shielding piece 4; or, the copper bar assembly comprises a first shielding piece 5 and a third shielding piece 6, as shown in fig. 6; or, the copper bar assembly comprises a first shield 5, a second shield 4 and a third shield 6.
According to the copper bar assembly provided by the embodiment of the invention, by arranging the first shielding piece 5, the second shielding piece 4 and/or the third shielding piece 6, at least one pin of the first copper bar 2 is wrapped by the first shielding piece 5, so that the influence of an electromagnetic field of the pin on current equalization can be reduced, and the current equalization performance of each parallel branch is improved; the second shielding piece 4 wraps the second copper bar 3, so that the mutual influence of electromagnetic fields between the first copper bar 2 and the second copper bar 3 is reduced, and the current uniformity of each parallel branch is improved; the third shielding member 6 wraps the first copper bar main body 26, so that the mutual influence of the electromagnetic field between the first copper bar 2 and the second copper bar 3 is reduced, and the current uniformity of each parallel branch is improved. Therefore, the copper bar assembly improves the current sharing performance of each parallel branch.
The number, size and shape of the first shields 5 are selected according to actual needs. In particular, to avoid that the electromagnetic field of the pins affects the current sharing, it is selectable that each pin is wrapped by the first shielding piece 5, i.e. the first shielding piece 5 wraps each pin. At this time, the first shielding members 5 may be selected to correspond to the pins one by one, or at least two first shielding members 5 may be selected to correspond to one pin. The former is preferred for ease of installation.
The first shielding member 5 may cover the entire lead, or alternatively, the first shielding member 5 may include a portion of the lead. In order to improve the shielding effect, the former is preferably selected, i.e. the first shielding member 5 extends from the end of the pin connected to the first copper busbar body 26 to the connecting end B of the pin, which is the end of the pin used for connecting to the electric device 1. In practice, the first shield 5 is also used to enclose the connection structure of the pin and the electric device 1.
The number, size and shape of the second shields 4 are chosen according to the actual needs. To simplify the mounting, one second shield 4 may be chosen. Of course, the number of the second shielding members 4 may be two or more, which is not limited in this embodiment.
Specifically, the second copper bar 3 has a connecting end C31 connected to the first copper bar 2. The second shield 4 may be selected as close as possible to the connection end C31 to improve the shielding effect. In practical application, the second shielding member 4 may be selected to wrap the entire second copper bar 3, or the second shielding member 4 may be selected to wrap a portion of the second copper bar 3.
The number, size and shape of the third shields 6 are chosen according to the actual needs. To simplify the mounting, one third shield 6 may be chosen. Of course, the number of the third shielding members 6 may be two or more, which is not limited in this embodiment.
Specifically, the first copper bar main body 26 has a connecting end a262 connected to the second copper bar 3. The third shield 6 may be selected as close as possible to the connection end a262 to improve the shielding effect. In the practical application process, the third shielding member 6 may be selected to wrap the entire first copper bar main body 26, or the third shielding member 6 may be selected to wrap a portion of the first copper bar main body 26.
In order to improve the shielding effect, it is also an option that the above-mentioned first shield 5 is provided with a first grounding structure 51, and/or that the second shield 4 is provided with a second grounding structure 41, and/or that the third shield 6 is provided with a third grounding structure 61.
Specific types of the first grounding structure 51, the second grounding structure 41, and the third grounding structure 61 are selected according to actual needs, for example, the first grounding structure 51, the second grounding structure 41, and the third grounding structure 61 are all grounding wires, which is not limited in this embodiment.
In order to further optimize the technical solution, the first copper bar main body 26 is provided with a connecting end a262 connected with the second copper bar 3, all the pins are located on the same side of the connecting end a262, and all the pins are symmetrically arranged about the connecting end a 262.
It will be appreciated that all the pins are arranged axisymmetrically about the connection a 262. Specifically, as shown in fig. 2, there are five pins, which are respectively a first pin 21, a second pin 22, a third pin 23, a fourth pin 24 and a fifth pin 25, the first pin 21 and the fifth pin 25 are axisymmetrically disposed, the second pin 22 and the fourth pin 24 are axisymmetrically disposed, and the third pin 23 and the connection end a262 are oppositely disposed, that is, the third pin 23 and the connection end a262 are both located on the symmetry axis.
In the copper bar assembly, because all the pins are symmetrically arranged about the connecting end A262, the difference of the distance from the connecting end B to the connecting end A262 of each pin is effectively reduced, so that the difference of parasitic inductance from the connecting end B to the connecting end A262 of each pin is reduced, and the current uniformity of each parallel branch is improved.
In practical application, the connection terminals B of all the pins can be selected to be distributed along the inverted V shape. As shown in fig. 2, the first connection end B211 of the first pin 21, the first connection end B221 of the first pin 22, the third connection end B231 of the third pin 23, the fourth connection end B241 of the fourth pin 24, and the fifth connection end B251 of the fifth pin 25 are sequentially distributed along the inverted V shape. It can be understood that, at this time, the length of the pins gradually decreases from the pins in the middle to the pins on both sides.
The connecting ends B of the leads may also be distributed in other shapes, and the lengths of the leads are also selected according to actual needs, which is not limited in this embodiment.
In order to eliminate the difference in parasitic inductance from the connection B of each pin to the connection a262, the connection B of any two pins is on the same arc, the center of which is the connection a 262. It will be appreciated that the arc is centered at the midpoint of connection a262, which is in the same plane as the respective pins.
In practical application, the difference of parasitic inductances from the connection terminal B to the connection terminal a262 of each pin can be reduced by other means. Specifically, the first copper bar main body 26 is provided with a partition through hole 261, the partition through hole 261 penetrates through the first copper bar main body 26 along the thickness direction of the first copper bar main body 26, and the partition hole 261 extends from the pin in the middle to the pins on both sides. It is understood that the blocking through-hole 261 has a bar shape.
The shape of the blocking through hole 261 is selected according to actual needs. Optionally, two ends of the blocking through hole 261 are close to the pin, and the middle of the blocking through hole 261 is far away from the pin. It can be understood that the middle of the partition through hole is close to the connecting end a262 of the first copper bar main body 26. In this way, the parasitic inductance from the connection terminal B of the pin located in the middle to the connection terminal a262 and the parasitic inductance from the connection terminal B of at least one pin located on both sides of the pin located in the middle to the connection terminal a262 may be increased, thereby reducing the difference in parasitic inductance from the connection terminal B of each pin to the connection terminal a 262.
In an actual application process, the blocking through hole 261 may also be selected to have another shape, which is not limited in this embodiment.
In the copper bar assembly, the first copper bar 2 can be selected as a converging copper bar, and the second copper bar 3 can be selected as an output copper bar; the first copper bar 2 can also be selected as a shunting copper bar, and the second copper bar 3 is an input copper bar.
It should be noted that, if the first copper bar 2 is a bus bar, the connection end a is a bus end; if above-mentioned first copper bar 2 is the reposition of redundant personnel copper bar, above-mentioned link A is the reposition of redundant personnel end.
Based on the copper bar assembly that above-mentioned embodiment provided, this embodiment still provides an electronic equipment, and this electronic equipment includes the copper bar assembly, and this copper bar assembly is the copper bar assembly of above-mentioned embodiment.
Specifically, the electronic device further includes an electric device 1, and the electric device 1 is connected to the pin. Specifically, the electric devices 1 correspond to the pins one by one, and the electric devices 1 are connected to the connection terminals B of the pins.
Because the copper bar subassembly that above-mentioned embodiment provided has above-mentioned technological effect, above-mentioned electronic equipment includes above-mentioned copper bar subassembly, then above-mentioned electronic equipment also has corresponding technological effect, and this text is no longer repeated.
The type of the electronic device is selected according to actual needs, for example, the electronic device is an inverter, and the like, which is not limited in this embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use 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. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A copper bar assembly comprises a first copper bar (2) and a second copper bar (3), wherein the first copper bar (2) comprises a first copper bar main body (26) and at least two pins which are connected with the first copper bar main body (26), and the first copper bar main body (26) is connected with the second copper bar (3); it is characterized in that the preparation method is characterized in that,
the copper bar subassembly still includes: a first shield (5), and/or a second shield (4), and/or a third shield (6); at least one pin is wrapped by the first shielding piece (5), the second shielding piece (4) is wrapped on the second copper bar (3), and the third shielding piece (6) is wrapped on the first copper bar main body (26).
2. The copper bar assembly according to claim 1, wherein the first shields (5) are in one-to-one correspondence with the pins.
3. Copper bar assembly according to claim 1, characterised in that the first shield (5) extends from the end of the pin connected to the first copper bar body (26) to the connection end B of the pin, which is the end of the pin used for connection to the electric device (1).
4. Copper bar assembly according to claim 1, characterised in that the first shield (5) is provided with a first grounding structure (51) and/or the second shield (4) is provided with a second grounding structure (41) and/or the third shield (6) is provided with a third grounding structure (61).
5. The copper bar assembly according to claim 1, wherein the first copper bar body (26) is provided with a connecting end A (262) connected with the second copper bar (3), all the pins are located on the same side of the connecting end A (262), and all the pins are symmetrically arranged about the connecting end A (262).
6. Copper bar assembly according to claim 5, characterised in that the connection ends B of all the pins are distributed along an inverted V-shape, said connection ends B being intended to be connected to an electric device (1).
7. The copper bar assembly as claimed in claim 5, wherein the connecting ends B of any two of the pins are on the same arc, the center of the arc being the connecting end A (262).
8. The copper bar assembly according to claim 1, wherein the first copper bar body (26) is provided with a partition through hole (261), the partition through hole (261) penetrates through the first copper bar body (26) along a thickness direction of the first copper bar body (26), and the partition hole (261) extends from the pin in the middle to the pins on both sides.
9. The copper bar assembly according to claim 8, wherein two ends of the partition through hole (261) are close to the pin, and the middle of the partition through hole (261) is far away from the pin.
10. The copper bar assembly according to any one of claims 1 to 9, wherein the first copper bar (2) is a busbar and the second copper bar (3) is an output copper bar.
11. The copper bar assembly according to any one of claims 1 to 9, wherein the first copper bar (2) is a split copper bar and the second copper bar (3) is an input copper bar.
12. An electronic device comprising a copper bar assembly, wherein the copper bar assembly is according to any one of claims 1-11.
13. The electronic device of claim 12, wherein the electronic device is an inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110829978.9A CN113571975B (en) | 2021-07-22 | 2021-07-22 | Copper bar assembly and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110829978.9A CN113571975B (en) | 2021-07-22 | 2021-07-22 | Copper bar assembly and electronic equipment |
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| CN113571975A true CN113571975A (en) | 2021-10-29 |
| CN113571975B CN113571975B (en) | 2024-05-14 |
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| CN202110829978.9A Active CN113571975B (en) | 2021-07-22 | 2021-07-22 | Copper bar assembly and electronic equipment |
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| CN210272088U (en) * | 2019-07-18 | 2020-04-07 | 常州常捷科技有限公司 | Special capacitor for electric drive for integrally suppressing electromagnetic interference |
| CN110534250A (en) * | 2019-09-04 | 2019-12-03 | 何铖 | A kind of low voltage bypass copper bus-bar |
| CN211908698U (en) * | 2020-04-28 | 2020-11-10 | 郑州精益达汽车零部件有限公司 | A Novel SIC Motor Controller Structure |
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