CN217522751U - Laminated busbar and power unit - Google Patents
Laminated busbar and power unit Download PDFInfo
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- CN217522751U CN217522751U CN202221169285.8U CN202221169285U CN217522751U CN 217522751 U CN217522751 U CN 217522751U CN 202221169285 U CN202221169285 U CN 202221169285U CN 217522751 U CN217522751 U CN 217522751U
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Abstract
The utility model relates to a power electronic technology field provides a female row of stromatolite and power unit. The laminated busbar comprises a busbar assembly, an intermediate insulating layer and an insulating gasket. The middle insulating layer is arranged in the busbar assembly and used for preventing the busbar assembly from generating two-pole short circuit. The bus bar assembly is provided with a mounting hole, and an insulating gasket is arranged on the mounting hole. Through the structure, the insulating washer is arranged in the mounting hole of the busbar assembly, so that the insulating effect of the mounting hole of the busbar assembly is realized. From this, the aperture of arranging the mounting hole on the subassembly of arranging is less relatively, and the area of arranging the subassembly greatly relatively, and its radiating effect is better, and calorific capacity is lower relatively.
Description
Technical Field
The utility model relates to a power electronic technology field especially relates to a female row of stromatolite and power unit.
Background
The laminated busbar is a multilayer composite structure connecting bar and has the advantages of repeatable electrical performance, low impedance, interference resistance, good reliability, simplicity in assembly and the like. It is widely used in power and hybrid traction, power switching systems, power generation systems, power conversion modules for electrical equipment, and the like. In the prior art, the effect of insulating the busbar mounting hole is mostly realized by increasing the aperture of the mounting hole. The area of the busbar can be reduced by the mode, and further the heating value of the busbar is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a female row of stromatolite and power unit for solve the female problem that the female row's area of arranging of current stromatolite is little, calorific capacity is big.
According to the utility model discloses an aspect provides a female row of stromatolite, include: busbar assembly, intermediate insulating layer and insulating washer.
The middle insulating layer is arranged in the busbar assembly and used for preventing the busbar assembly from generating two-pole short circuit. The bus bar assembly is provided with a mounting hole, and an insulating gasket is arranged on the mounting hole.
According to the utility model provides a pair of female arranging of stromatolite, female subassembly of arranging includes that anodal mother arranges, female arranging of negative pole and ground connection mother arrange.
The positive busbar, the grounding busbar and the negative busbar are sequentially stacked. The intermediate insulating layer is arranged between the positive busbar and the grounding busbar and between the grounding busbar and the negative busbar.
According to the utility model provides a pair of female arranging of stromatolite, intermediate insulation layer includes first intermediate insulation layer. The first intermediate insulating layer is arranged between the positive busbar and the grounding busbar. The first intermediate insulating layer completely covers a contact surface between the positive busbar and the grounding busbar, and the outer edge of the first intermediate insulating layer protrudes to the outer edge of the positive busbar and the outer edge of the grounding busbar.
According to the utility model provides a pair of female arranging of stromatolite, intermediate insulation layer includes second intermediate insulation layer. The second intermediate insulating layer is arranged between the grounding busbar and the negative busbar. The second intermediate insulating layer completely covers a contact surface between the grounding busbar and the negative busbar, and the outer edge of the second intermediate insulating layer protrudes to the outer edge of the grounding busbar and the outer edge of the negative busbar.
According to the utility model provides a pair of female row of stromatolite, anodal female arranging includes first electric capacity insulating region. The first capacitor insulation area is located on one side far away from the negative electrode busbar. And a first capacitor insulating plate is arranged in the first capacitor insulating area.
According to the utility model provides a pair of female row of stromatolite, female the arranging including second electric capacity insulation region of negative pole. The second capacitor insulation area is located on one side far away from the positive busbar. And a second capacitor insulating plate is arranged in the second capacitor insulating area.
According to a second aspect of the present invention, there is provided a power unit, comprising a box body and a laminated busbar as described above. The laminated busbar is mounted inside the box body.
According to the utility model provides a pair of power unit, female subassembly of arranging includes that the positive pole is female arranges, female arranging of negative pole and the female arranging of ground connection. The positive busbar, the grounding busbar and the negative busbar are sequentially stacked.
The positive busbar comprises a first capacitor insulation area. And a first capacitor insulating plate is arranged in the first capacitor insulating area. The negative busbar comprises a second capacitor insulation area. And a second capacitor insulating plate is arranged in the second capacitor insulating area.
The power unit further comprises a thin film capacitor and an explosion-proof capacitor. The thin film capacitor is connected to one side, away from the positive busbar, of the first capacitor insulating plate. The explosion-proof capacitor is connected to one side, far away from the negative busbar, of the second capacitor insulating plate.
According to the utility model provides a pair of power unit, power unit includes the radiator. The radiator and the explosion-proof capacitor are located on the same side of the busbar assembly. And the radiator and the busbar assembly are arranged at intervals.
According to the utility model provides a pair of power unit, power unit includes the IGBT. The IGBT is located between the busbar assembly and the radiator. And the IGBT is connected with the busbar assembly.
The utility model provides a female row of stromatolite, intermediate insulation set up in female the arranging subassembly is inside, and is used for preventing female the arranging subassembly takes place the two poles of the earth short circuit. And the busbar assembly is provided with a mounting hole. And an insulating gasket is arranged on the mounting hole.
Through this kind of structure setting, set up insulating washer in female mounting hole of arranging the subassembly to female insulating effect of arranging the subassembly mounting hole is realized. From this, the aperture of arranging the mounting hole on the subassembly of arranging is less relatively, and the area of arranging the subassembly greatly relatively, and its radiating effect is better, and calorific capacity is lower relatively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a laminated busbar provided by the present invention;
fig. 2 is a schematic cross-sectional structure view of a laminated busbar provided by the present invention;
fig. 3 is a schematic structural diagram of a power unit provided by the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is an enlarged view of a portion of FIG. 2 at B;
reference numerals:
100. a laminated busbar; 200. mounting holes; 300. an insulating washer; 400. a positive busbar; 500. A negative busbar; 600. a grounding busbar; 701. a first intermediate insulating layer; 702. a second intermediate insulating layer; 801. a first capacitive insulating plate; 802. a second capacitive insulating plate; 901. a box body; 902. a thin film capacitor; 903. an explosion-proof capacitor; 904. a heat sink; 905. an IGBT.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, without mutual contradiction, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the objects, technical solutions, and advantages of the embodiments of the present invention clearer, and the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A laminated busbar 100 and a power unit according to an embodiment of the present invention are described with reference to fig. 1 to 5. It should be understood that the following description is only exemplary of the present invention, and is not intended to limit the present invention in any way.
The embodiment of the first aspect of the present invention provides a laminated busbar 100, as shown in fig. 1 and fig. 2, the laminated busbar 100 includes: busbar assembly, intermediate insulating layer and insulating washer 300.
The middle insulating layer is arranged inside the busbar assembly and used for preventing the busbar assembly from generating two-pole short circuit. The busbar assembly is provided with a mounting hole 200, and the mounting hole 200 is provided with an insulating gasket 300.
Through the structure, the insulating washer 300 is arranged in the mounting hole 200 of the busbar assembly, so that the insulating effect of the mounting hole 200 of the busbar assembly is realized. From this, the aperture of arranging mounting hole 200 on the female subassembly of arranging is less relatively, and female area of arranging the subassembly is great relatively, and its radiating effect is better, and calorific capacity is lower relatively.
In an embodiment of the present invention, the busbar assembly includes a positive busbar 400, a negative busbar 500 and a grounding busbar 600.
The positive busbar 400, the grounding busbar 600 and the negative busbar 500 are sequentially stacked. The intermediate insulating layers are arranged between the positive busbar 400 and the grounding busbar 600 and between the grounding busbar 600 and the negative busbar 500.
Further, in an embodiment of the present invention, the intermediate insulating layer includes a first intermediate insulating layer 701. The first intermediate insulating layer 701 is disposed between the positive bus bar 400 and the ground bus bar 600. The first intermediate insulating layer 701 completely covers the contact surface between the positive busbar 400 and the ground busbar 600, and the outer edge of the first intermediate insulating layer 701 protrudes to the outer edge of the positive busbar 400 and the outer edge of the ground busbar 600.
Still further, the intermediate insulating layer includes a second intermediate insulating layer 702. The second intermediate insulating layer 702 is disposed between the ground busbar 600 and the negative busbar 500. The second intermediate insulating layer 702 completely covers the contact surface between the ground busbar 600 and the negative busbar 500, and the outer edge of the second intermediate insulating layer 702 protrudes to the outer edge of the ground busbar 600 and the outer edge of the negative busbar 500.
For example, as shown in fig. 2, 4 and 5, the positive bus bar 400 is stacked on the upper side of the ground bus bar 600. A first intermediate insulating layer 701 is laid between the positive busbar 400 and the ground busbar 600. The grounding busbar 600 is overlapped on the upper side of the negative busbar 500. A second intermediate insulating layer 702 is laid between the grounding busbar 600 and the negative busbar 500. Mounting holes 200 are correspondingly formed in the positive busbar 400, the first intermediate insulating layer 701, the grounding busbar 600, the second intermediate insulating layer 702 and the negative busbar 500, and insulating gaskets 300 are mounted in the mounting holes 200. The connecting bolt penetrates through and is connected with the positive busbar 400, the first intermediate insulating layer 701, the grounding busbar 600, the second intermediate insulating layer 702 and the negative busbar 500.
The size of the first intermediate insulating layer 701 is larger than the size of the positive busbar 400 and the ground busbar 600, so that the outer edge of the first intermediate insulating layer 701 protrudes to the outer sides of the positive busbar 400 and the ground busbar 600. Therefore, the first intermediate insulating layer 701 completely separates the positive busbar 400 and the grounding busbar 600, so as to improve the insulation reliability between the positive busbar 400 and the grounding busbar 600.
Similarly, the size of the second intermediate insulating layer 702 is larger than the sizes of the negative busbar 500 and the ground busbar 600, so that the outer edge of the second intermediate insulating layer 702 protrudes to the outer sides of the negative busbar 500 and the ground busbar 600. Therefore, the second intermediate insulating layer 702 completely separates the negative busbar 500 from the ground busbar 600, so as to improve the insulation reliability between the two.
In an embodiment of the present invention, the positive electrode busbar 400 includes a first capacitor insulation region. The first capacitor insulation region is located at a side far away from the negative busbar 500. A first capacitor insulating plate 801 is mounted within the first capacitor insulating region.
In another embodiment of the present invention, the negative electrode bus bar 500 includes a second capacitor insulation region. The second capacitor insulation region is located at a side far away from the positive busbar 400. A second capacitor insulation plate 802 is mounted within the second capacitor insulation region.
As shown in fig. 2, 4 and 5, the positive bus bar 400 is located at an upper side of the negative bus bar 500. A first capacitor insulation region is disposed on an upper side surface of the positive electrode bus bar 400. A first capacitor insulating plate 801 is mounted within the first capacitor insulating region. A second capacitor insulation region is disposed on the lower side surface of the negative busbar 500. A second capacitive insulating plate 802 is mounted within the second capacitive insulating region. Thus, a capacitor can be mounted on first capacitor insulating plate 801 and second capacitor insulating plate 802. For example, a thin film capacitor may be mounted on the upper side of first capacitor insulating plate 801 for IGBT surge absorption; an explosion-proof capacitor may be installed at the lower side of the second capacitor insulation plate 802 for AC filtering.
An embodiment of the second aspect of the present invention provides a power unit, which includes a box 901 and the laminated busbar 100 as described above. The laminated busbar 100 is mounted inside the case 901.
Further, since the power unit includes the laminated busbar 100 as described above, the power unit also has the advantages as described above.
In an embodiment of the present invention, the busbar assembly includes a positive busbar 400, a negative busbar 500 and a grounding busbar 600. The positive busbar 400, the grounding busbar 600 and the negative busbar 500 are sequentially stacked.
The positive bus bar 400 includes a first capacitor insulation region. A first capacitor insulating plate 801 is mounted within the first capacitor insulating region. The negative bus bar 500 includes a second capacitor insulation region. A second capacitor insulation plate 802 is mounted within the second capacitor insulation region.
The power unit further comprises a film capacitor 902 and an explosion-proof capacitor 903. The thin film capacitor 902 is connected to a side of the first capacitor insulating plate 801 away from the positive busbar 400. The explosion-proof capacitor 903 is connected to a side of the second capacitor insulating plate 802 away from the negative busbar 500.
For example, as shown in fig. 3 to 5, the positive bus bar 400 is located at an upper side of the negative bus bar 500. The grounding busbar 600 is arranged between the positive busbar 400 and the negative busbar 500. A first intermediate insulating layer 701 is laid between the positive busbar 400 and the ground busbar 600. A second intermediate insulating layer 702 is laid between the grounding busbar 600 and the negative busbar 500. A first capacitor insulating plate 801 is installed at a position close to the right of the upper side of the positive busbar 400. The lower side of the negative electrode busbar 500 is provided with a second insulating plate close to the left position. The laminated busbar 100 is connected to the inside of the case 901. A thin film capacitor 902 is mounted on the upper side of the first capacitor insulating plate 801. Explosion-proof capacitor 903 is mounted on the lower side of second capacitor insulating plate 802. The thin film capacitor 902 is used for IGBT surge absorption. The explosion-proof capacitor 903 is used for AC filtering. The explosion-proof capacitor 903 is connected with the laminated busbar 100 through a copper bar. Copper columns are welded on the copper bars, so that the explosion-proof capacitor 903 is connected with the positive busbar 400, the negative busbar 500 and the grounding busbar 600.
By respectively arranging the thin film capacitor 902 and the explosion-proof capacitor 903 to the upper side and the lower side of the laminated busbar 100, the space between the upper side and the lower side of the laminated busbar 100 can be fully utilized, so that the structure of the power unit is more compact, and the space utilization rate is higher.
In one embodiment of the present invention, the power unit includes a heat sink 904. Radiator 904 and explosion-proof capacitor 903 are located on the same side of the busbar assembly, and radiator 904 and the busbar assembly are arranged at intervals.
Further, in an embodiment of the present invention, the power unit includes an IGBT 905. The IGBT905 is located between the busbar assembly and the heat sink 904, and the IGBT905 is connected to the busbar assembly. For example, the IGBT905 is connected to the busbar assembly through a U-shaped copper bar.
For example, as shown in fig. 3, the heat sink 904 is disposed at the lower side of the laminated busbar 100, and a certain distance is provided between the heat sink 904 and the busbar assembly. That is to say, the laminated busbar 100 is suspended above the heat sink 904, which is beneficial to air circulation and has better heat dissipation effect. Meanwhile, the IGBT905 is arranged between the busbar assembly and the radiator 904, so that the structural compactness of the power unit can be further improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A laminated bus bar is characterized by comprising a bus bar assembly, an intermediate insulating layer and an insulating gasket,
the middle insulating layer is arranged inside the busbar assembly and used for preventing the busbar assembly from generating two-pole short circuit, a mounting hole is formed in the busbar assembly, and the insulating washer is arranged on the mounting hole.
2. The laminated busbar according to claim 1, wherein the busbar assembly comprises a positive busbar, a negative busbar and a ground busbar,
the positive busbar, the grounding busbar and the negative busbar are sequentially arranged in an overlapping mode, and the intermediate insulating layer is arranged between the positive busbar and the grounding busbar and between the grounding busbar and the negative busbar.
3. The laminated busbar according to claim 2, wherein the intermediate insulating layer comprises a first intermediate insulating layer, the first intermediate insulating layer is arranged between the positive busbar and the ground busbar, the first intermediate insulating layer completely covers a contact surface between the positive busbar and the ground busbar, and an outer edge of the first intermediate insulating layer protrudes to the outer edge of the positive busbar and the outer edge of the ground busbar.
4. The laminated busbar according to claim 2, wherein the intermediate insulating layer comprises a second intermediate insulating layer, the second intermediate insulating layer is arranged between the ground busbar and the negative busbar, the second intermediate insulating layer completely covers a contact surface between the ground busbar and the negative busbar, and an outer edge of the second intermediate insulating layer protrudes to an outer edge of the ground busbar and an outer edge of the negative busbar.
5. The laminated busbar according to claim 2, wherein the positive busbar comprises a first capacitor insulation region, the first capacitor insulation region is positioned on one side away from the negative busbar, and a first capacitor insulation plate is mounted in the first capacitor insulation region.
6. The laminated busbar according to claim 2, wherein the negative busbar comprises a second capacitor insulation region, the second capacitor insulation region is positioned on one side away from the positive busbar, and a second capacitor insulation plate is mounted in the second capacitor insulation region.
7. A power unit, characterized by comprising a box body and the laminated busbar of any one of claims 1 to 6, wherein the laminated busbar is mounted to the inside of the box body.
8. The power unit according to claim 7, wherein the busbar assembly comprises a positive busbar, a negative busbar and a grounding busbar, the positive busbar, the grounding busbar and the negative busbar are sequentially stacked,
the positive busbar comprises a first capacitor insulation area, a first capacitor insulation board is arranged in the first capacitor insulation area, the negative busbar comprises a second capacitor insulation area, a second capacitor insulation board is arranged in the second capacitor insulation area,
the power unit further comprises a thin film capacitor and an explosion-proof capacitor, the thin film capacitor is connected to one side, away from the positive busbar, of the first capacitor insulation board, and the explosion-proof capacitor is connected to one side, away from the negative busbar, of the second capacitor insulation board.
9. The power unit according to claim 8, wherein the power unit comprises a heat sink, the heat sink and the explosion-proof capacitor are located on the same side of the busbar assembly, and the heat sink and the busbar assembly are arranged at intervals.
10. The power unit of claim 9, wherein the power unit comprises an IGBT, the IGBT is located between the busbar assembly and the heat sink, and the IGBT is connected with the busbar assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221169285.8U CN217522751U (en) | 2022-05-16 | 2022-05-16 | Laminated busbar and power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221169285.8U CN217522751U (en) | 2022-05-16 | 2022-05-16 | Laminated busbar and power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217522751U true CN217522751U (en) | 2022-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221169285.8U Active CN217522751U (en) | 2022-05-16 | 2022-05-16 | Laminated busbar and power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217522751U (en) |
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2022
- 2022-05-16 CN CN202221169285.8U patent/CN217522751U/en active Active
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Effective date of registration: 20230721 Address after: 410100 201, Floor 2, Zhongchuang Building, Sany Industrial City, No. 1, Sany Road, Changsha Economic Development Zone, Changsha Pilot Free Trade Zone, Hunan Province Patentee after: Sany Lithium Energy Co.,Ltd. Address before: 102206 5th floor, building 6, 8 Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY INDUSTRY Co.,Ltd. |