CN223770834U - High-power two-level inverter stacked busbar - Google Patents
High-power two-level inverter stacked busbarInfo
- Publication number
- CN223770834U CN223770834U CN202520149288.2U CN202520149288U CN223770834U CN 223770834 U CN223770834 U CN 223770834U CN 202520149288 U CN202520149288 U CN 202520149288U CN 223770834 U CN223770834 U CN 223770834U
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- CN
- China
- Prior art keywords
- busbar
- insulating layer
- power
- laminated
- copper bar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
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- Inverter Devices (AREA)
Abstract
The utility model discloses a laminated busbar of a high-power two-level inverter, which comprises a laminated busbar, wherein the laminated busbar consists of a first insulating layer, a connecting busbar, a second insulating layer, a third insulating layer, a positive electrode busbar, a fourth insulating layer, a fifth insulating layer, a negative electrode busbar and a sixth insulating layer which are laminated from top to bottom. Through the setting of stromatolite busbar, compare with prior art, this stromatolite busbar is multilayer stack design, can make the electricity drive the system and can realize more connections in less space, reduce the tie point between the different electrical equipment, space utilization has been improved, the waste of material has been avoided, the form of insulating design is separated through the power device simultaneously, the parallelly connected of a plurality of power devices has been realized, unnecessary circulation loop has been reduced, the effect of flow equalizing has been strengthened, the current bearing capacity has been improved, the demand of high-power electricity drive system has been satisfied, practicality and convenience have been promoted effectively.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a high-power two-level inverter laminated busbar.
Background
Bus bars in motor drive systems are an important component of the system to function properly. The power module of the driving system is connected with the cable through the output connector, and current is collected to the busbar and then distributed to different motors. At present, a bus bar commonly used in a motor driving system is generally of a constant cross-section structure, and is suitable for a low-power motor driving system. However, in order to meet the current carrying requirement, the constant section structure needs a large amount of metal materials, which has the disadvantages of higher cost and low material utilization rate.
Disclosure of utility model
In order to overcome the defects of high cost and low material utilization rate of the bus bar with the structure, which is commonly used in a motor driving system in the prior art, in a high-power electric driving system, the bus bar is generally of a uniform cross-section structure, and the uniform cross-section structure needs a large amount of metal materials, the bus bar with the structure possibly has the defect of current bearing capacity, and one of the purposes of the utility model is to provide a high-power two-level inverter laminated bus bar.
The high-power two-level inverter laminated busbar comprises laminated busbar, wherein the laminated busbar consists of a first insulating layer, a connecting busbar, a second insulating layer, a third insulating layer, a positive busbar, a fourth insulating layer, a fifth insulating layer, a negative busbar and a sixth insulating layer which are laminated from top to bottom, the connecting busbar consists of a U-phase connecting copper bar, a V-phase connecting copper bar, a W-phase connecting copper bar and insulating layers arranged between the U-phase connecting copper bar, the V-phase connecting copper bar and the W-phase connecting copper bar, the upper surfaces of the positive busbar and the negative busbar are respectively provided with a positive wiring hole and a negative wiring hole, the laminated busbar is respectively connected with a positive electrode and a negative electrode of a power supply in a high-power motor driving system through the positive wiring hole and the negative wiring hole, the upper surfaces of the U-phase connecting copper bar, the V-phase connecting copper bar and the W-phase connecting copper bar are respectively provided with a first wiring hole, a second wiring hole, a third wiring hole and a third wiring hole in the high-power motor driving system, and a third wiring hole in the high-phase motor driving system are respectively arranged on the upper surfaces of the positive wiring hole and the W-phase connecting copper bar. The effect that makes a plurality of power devices carry out parallel connection in narrow and small space is convenient for realize to reduce the circulation return circuit, promote space utilization, satisfy different user demands.
According to the high-power two-level inverter laminated busbar, the first insulating layer, the second insulating layer, the third insulating layer, the fourth insulating layer, the fifth insulating layer and the sixth insulating layer are all formed by insulating mediums. Has good insulating property.
According to the high-power two-level inverter laminated busbar, a first connecting hole is formed in the upper surface of one side of the laminated busbar in a rectangular array mode, square holes are formed in the upper surface of one side of the laminated busbar at equal intervals, a second connecting hole is formed in the upper surface of one side of the laminated busbar at equal intervals, and the laminated busbar is connected with a power device in a high-power motor driving system through the first connecting hole, the square holes, the second connecting holes and bolts. Facilitating the mounting of the power device on the stacked buss.
According to the high-power two-level inverter laminated busbar, the power supply connection side of the positive busbar is provided with first inner ring connection holes and first outer ring connection holes in a staggered manner in a linear array mode, and the power supply connection side of the negative busbar is provided with second outer ring connection holes and second inner ring connection holes in a staggered manner in a linear array mode. The current collector is convenient to connect with a power supply in a high-power motor driving system through the positive electrode wiring hole and the negative electrode wiring hole, so that the current is collected on the laminated busbar.
According to the high-power two-level inverter laminated busbar, a first square connecting hole is formed in the motor connecting side of the positive busbar in a linear array mode, and a third inner ring connecting hole and a third outer ring connecting hole are formed in the side, close to the first square connecting hole, of the positive busbar in a rectangular array mode. The positive electrode busbar is convenient to mount with other components of the laminated busbar.
According to the high-power two-level inverter laminated busbar, the motor connection side of the negative busbar is provided with second square connection holes in a linear array mode, and one side of the positive busbar, which is close to the second square connection holes, is provided with fourth inner ring connection holes and fourth outer ring connection holes in a rectangular array mode. Facilitating the installation of the negative busbar with other components of the stacked busbar.
According to the high-power two-level inverter laminated busbar, a fifth inner ring connecting hole and a fifth outer ring connecting hole are formed in the upper surfaces of the U-phase connection copper bar, the V-phase connection copper bar and the W-phase connection copper bar at equal intervals. Facilitating the installation of the connection busbar with other components on the laminated busbar.
The scheme has the beneficial effects that:
Through the setting of stromatolite busbar, compare with prior art, this stromatolite busbar is multilayer stack design, can make the electricity drive the system and can realize more connections in less space, reduce the tie point between the different electrical equipment, space utilization has been improved, the waste of material has been avoided, simultaneously through the form of power device separation insulation design, the parallelly connected of a plurality of power devices has been realized, unnecessary circulation loop has been reduced, the effect of flow equalizing has been strengthened, current bearing capacity has been improved, the demand of high-power electricity drive system has been satisfied.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a schematic diagram of the overall structure of a laminated bus bar of a high-power two-level inverter according to the present utility model;
FIG. 2 is a schematic diagram of a first connection hole of a laminated busbar of the high-power two-level inverter according to the present utility model;
FIG. 3 is a schematic diagram of a positive busbar of a laminated busbar of a high-power two-level inverter according to the present utility model;
FIG. 4 is a schematic diagram of a negative busbar of a laminated busbar of a high-power two-level inverter according to the present utility model;
fig. 5 is a schematic diagram of a connection busbar of a laminated busbar of a high-power two-level inverter according to the present utility model.
Legend description:
100. The bus bar comprises a laminated bus bar body, 101, a first connecting hole, 401, a square hole, 402, a second connecting hole, L1, a first insulating layer, L2, a connecting bus bar body, 21, U-phase connecting copper bars, 22, V-phase connecting copper bars, 23, W-phase connecting copper bars, 201, a first wiring hole, 202, a second wiring hole, 203, a third wiring hole, 204, a fifth outer ring connecting hole, 205, a fifth inner ring connecting hole, L3, a second insulating layer, L4, a third insulating layer, L5, a positive electrode bus bar body, 501, a positive electrode wiring hole, 502, a first inner ring connecting hole, 503, a first outer ring connecting hole, 504, a first square connecting hole, 505, a third inner ring connecting hole, 506, a third outer ring connecting hole, L6, a fourth insulating layer, L7, a fifth insulating layer, L8, a negative electrode bus bar body, 801, a negative electrode wiring hole, 802, a second outer ring connecting hole, 803, a second inner ring connecting hole, 804, a second connecting hole, 805, a fourth inner ring connecting hole, 806, a fourth outer ring connecting hole, and L9, a sixth insulating layer.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Referring to fig. 1-5, the high-power two-level inverter laminated busbar comprises laminated busbar 100, wherein laminated busbar 100 is formed by laminating a first insulating layer L1, a connecting busbar L2, a second insulating layer L3, a third insulating layer L4, a positive electrode busbar L5, a fourth insulating layer L6, a fifth insulating layer L7, a negative electrode busbar L8 and a sixth insulating layer L9 from top to bottom, connecting busbar L2 is formed by connecting U-phase connecting copper bar 21, V-phase connecting copper bar 22, W-phase connecting copper bar 23 and insulating layers arranged between U-phase connecting copper bar 21, V-phase connecting copper bar 22 and W-phase connecting copper bar 23, positive electrode wiring hole 501 and negative electrode wiring hole 801 are respectively formed on the upper surfaces of positive electrode busbar L5 and negative electrode busbar L8, laminated busbar 100 is respectively connected with a positive electrode and a negative electrode of a power supply in a high-power motor driving system through positive electrode wiring hole 501 and negative electrode wiring hole 801, U-phase connecting copper bar 22 and W-phase connecting copper bar 23 are respectively formed by connecting U-phase connecting copper bar 21, V-phase connecting copper bar 22 and W-phase connecting copper bar 23 with a third wiring hole 203 and a third wiring hole 203 in a three-phase motor driving system through a third wiring hole 203 and a third wiring hole 203.
By means of the arrangement, the plurality of power devices can be installed in parallel through the laminated busbar 100, so that redundant circulation loops are reduced, current sharing effect is enhanced, current bearing capacity is improved, and the requirements of a high-power electric drive system are met.
The first insulating layer L1, the second insulating layer L3, the third insulating layer L4, the fourth insulating layer L6, the fifth insulating layer L7 and the sixth insulating layer L9 are all formed by insulating media, the upper surface of one side of the laminated busbar 100 is provided with first connecting holes 101 in a rectangular array mode, the upper surface of one side of the laminated busbar 100 is provided with square holes 401 at equal intervals, the upper surface of one side of the laminated busbar 100 is provided with second connecting holes 402 at equal intervals, the laminated busbar 100 is connected with a power device in a high-power motor driving system through the first connecting holes 101, the square holes 401, the second connecting holes 402 and bolts, the power supply connecting side of the positive busbar L5 is provided with first inner ring connecting holes 502 and first outer ring connecting holes 503 at intervals in a linear array mode, the power supply connection side of the negative electrode busbar L8 is provided with second outer ring connection holes 802 and second inner ring connection holes 803 in a staggered manner in a linear array manner, the motor connection side of the positive electrode busbar L5 is provided with first square connection holes 504 in a linear array manner, one side of the positive electrode busbar L5, which is close to the first square connection holes 504, is provided with third inner ring connection holes 505 and third outer ring connection holes 506 in a rectangular array manner, the motor connection side of the negative electrode busbar L8 is provided with second square connection holes 804 in a linear array manner, one side of the positive electrode busbar L5, which is close to the second square connection holes 804, is provided with fourth inner ring connection holes 806 and fourth outer ring connection holes 805 in a rectangular array manner, and the upper surfaces of the U-phase connection copper bars 21, the V-phase connection copper bars 22 and the W-phase connection copper bars 23 are equally spaced and provided with fifth inner ring connection holes 205 and fifth outer ring connection holes 204.
So set up, first insulating layer L1, second insulating layer L3, third insulating layer L4, fourth insulating layer L6, fifth insulating layer L7 and sixth insulating layer L9 play insulating partition power device's effect, and the size of second square connecting hole 804 and first square connecting hole 504 are unanimous, and the size of third inner circle connecting hole 505 and third outer lane connecting hole 506 are unanimous with the size of fourth inner circle connecting hole 806 and fourth outer lane connecting hole 805 respectively to realize interconnect.
The working principle is that each layer of busbar can be connected with the connecting holes and the other layers of the laminated busbar 100 and the power devices in the high-power motor driving system through bolts, wherein the sizes of the connecting holes at the same connecting positions of the busbars of different layers are not necessarily the same, for example, the first outer ring connecting holes 503 on the positive electrode busbar L5 and the second inner ring connecting holes 803 on the negative electrode busbar L8 can realize the connection of different busbars and different power devices through adjusting the connecting positions of the same connecting holes and matching with bolts, so that the electric drive system can complete the connection of a plurality of power devices in a narrow space through the laminated busbar 100, the space utilization rate is improved, the material waste is reduced, the parallel effect of a plurality of power devices can be realized, and different use requirements are met.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (7)
1. The high-power two-level inverter laminated busbar is characterized by comprising a laminated busbar (100), wherein the laminated busbar (100) consists of a first insulating layer (L1), a connecting busbar (L2), a second insulating layer (L3), a third insulating layer (L4), a positive electrode busbar (L5), a fourth insulating layer (L6), a fifth insulating layer (L7), a negative electrode busbar (L8) and a sixth insulating layer (L9) which are laminated from top to bottom, and the connecting busbar (L2) consists of a U-phase connecting copper bar (21), a V-phase connecting copper bar (22), a W-phase connecting copper bar (23) and insulating layers arranged between the U-phase connecting copper bar (21), the V-phase connecting copper bar (22) and the W-phase connecting copper bar (23);
Positive wiring holes (501) and negative wiring holes (801) are respectively formed in the upper surfaces of the positive busbar (L5) and the negative busbar (L8), the laminated busbar (100) is respectively connected with a positive power supply and a negative power supply in a high-power motor driving system through the positive wiring holes (501) and the negative wiring holes (801), a U-phase connection copper bar (21), a V-phase connection copper bar (22) and a W-phase connection copper bar (23) are respectively formed in the upper surfaces of the first wiring holes (201), the second wiring holes (202) and the third wiring holes (203), and the laminated busbar (100) is respectively connected with a motor UVW three-phase in the high-power motor driving system through the first wiring holes (201), the second wiring holes (202) and the third wiring holes (203).
2. The high-power two-level inverter laminated busbar of claim 1, wherein the first insulating layer (L1), the second insulating layer (L3), the third insulating layer (L4), the fourth insulating layer (L6), the fifth insulating layer (L7) and the sixth insulating layer (L9) are each formed by an insulating medium.
3. The high-power two-level inverter laminated busbar according to claim 1, wherein a first connecting hole (101) is formed in a rectangular array on an upper surface of one side of the laminated busbar (100), square holes (401) are formed in an equidistant manner on an upper surface of one side of the laminated busbar (100), a second connecting hole (402) is formed in an equidistant manner on an upper surface of one side of the laminated busbar (100), and the laminated busbar (100) is connected with a power device in a high-power motor driving system through the first connecting hole (101), the square holes (401), the second connecting holes (402) and bolts.
4. The high-power two-level inverter laminated busbar according to claim 1, wherein the power supply connection side of the positive busbar (L5) is provided with first inner ring connection holes (502) and first outer ring connection holes (503) in a staggered manner in a linear array, and the power supply connection side of the negative busbar (L8) is provided with second outer ring connection holes (802) and second inner ring connection holes (803) in a staggered manner in a linear array.
5. The high-power two-level inverter laminated busbar according to claim 1, wherein a first square connecting hole (504) is formed on a motor connecting side of the positive electrode busbar (L5) in a linear array manner, and a third inner ring connecting hole (505) and a third outer ring connecting hole (506) are formed on one side of the positive electrode busbar (L5) close to the first square connecting hole (504) in a rectangular array manner.
6. The high-power two-level inverter laminated busbar according to claim 1, wherein a second square connecting hole (804) is formed on a motor connecting side of the negative busbar (L8) in a linear array manner, and a fourth inner ring connecting hole (806) and a fourth outer ring connecting hole (805) are formed on a side of the positive busbar (L5) close to the second square connecting hole (804) in a rectangular array manner.
7. The high-power two-level inverter laminated busbar according to claim 1, wherein a fifth inner ring connecting hole (205) and a fifth outer ring connecting hole (204) are formed on the upper surfaces of the U-phase connection copper bar (21), the V-phase connection copper bar (22) and the W-phase connection copper bar (23) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520149288.2U CN223770834U (en) | 2025-01-22 | 2025-01-22 | High-power two-level inverter stacked busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520149288.2U CN223770834U (en) | 2025-01-22 | 2025-01-22 | High-power two-level inverter stacked busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223770834U true CN223770834U (en) | 2026-01-06 |
Family
ID=98256792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520149288.2U Active CN223770834U (en) | 2025-01-22 | 2025-01-22 | High-power two-level inverter stacked busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223770834U (en) |
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2025
- 2025-01-22 CN CN202520149288.2U patent/CN223770834U/en active Active
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