CN220963054U - Capacitor, filter assembly and motor controller - Google Patents
Capacitor, filter assembly and motor controller Download PDFInfo
- Publication number
- CN220963054U CN220963054U CN202322710246.5U CN202322710246U CN220963054U CN 220963054 U CN220963054 U CN 220963054U CN 202322710246 U CN202322710246 U CN 202322710246U CN 220963054 U CN220963054 U CN 220963054U
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- capacitor
- electrical connection
- core pack
- connection
- electric
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- 239000003990 capacitor Substances 0.000 title claims abstract description 98
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000004382 potting Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model relates to a condenser technical field especially relates to a condenser, filter module and motor controller, and the condenser includes casing, electric capacity core package and electric connection piece, and wherein, the casing has and holds the chamber, and electric capacity core package is located and is held the intracavity, and electric connection piece is connected in electric capacity core package and is extended to the outside of casing. The capacitor disclosed by the invention uses the electric connection sheet as the pin electrically connected with the outside, compared with the round pin joint in the related art which is used as the pin, the self length of the electric connection sheet is shorter and the contact area with the capacitor core package is larger, so that the equivalent inductance of the capacitor is reduced, and the filtering performance of the capacitor is improved.
Description
Technical Field
The disclosure relates to the technical field of capacitors, in particular to a capacitor, a filter assembly and a motor controller.
Background
The capacitor is a common electronic product, especially in the process of high-speed development of electric automobiles, the capacitor can be applied to a filter component in an automobile motor controller, but the capacitor in the current filter component uses a round pin joint as a pin of the capacitor, so that the generated ESL (equivalent inductance) is larger, and the filter performance of the filter component is poorer.
Disclosure of utility model
It is an object of the present disclosure to provide a capacitor, a filter assembly and a motor controller, which can reduce the equivalent inductance generated by the capacitor itself.
To achieve the above object, a first aspect of the present disclosure provides a capacitor, comprising: a housing having a receiving cavity; the capacitor core bag is arranged in the accommodating cavity; and an electrical connection piece connected to the capacitor core package and extending to the outside of the housing.
Optionally, the electric connection piece comprises a connection piece body, and a first electric connection part for being electrically connected with the direct current busbar is formed at one end of the connection piece body extending out of the shell; one end of the connecting sheet body, which is far away from the first electric connection part, is provided with a second electric connection part which is used for being electrically connected with the capacitor core package.
Optionally, the first electrical connection portion is provided with a connection hole.
Optionally, a notch for reducing stress concentration is formed at the joint of the connecting piece body and the first electric connection part.
Optionally, the second electrical connection part is configured as a sheet structure and is connected perpendicularly to the connection piece body.
Optionally, the sheet structure has a plurality of, and a plurality of the sheet structure interval sets up on the electric capacity core package and a plurality of the sheet structure the width all is less than the connection piece body with the width of first electric connection portion.
Optionally, two electric connection pieces are provided, one of the two electric connection pieces is welded to the positive electrode end of the capacitor core bag, and the other electric connection piece is welded to the negative electrode end of the capacitor core bag.
Optionally, a gap is formed between the inner wall of the shell and the capacitor core package, and pouring sealant is filled in the gap to fill the capacitor core package in the accommodating cavity of the shell.
In a second aspect of the disclosure, a filter assembly is provided, including a filter core, a dc busbar, and a capacitor as described above; the capacitor and the filter magnetic core are both connected to the direct current busbar.
In a third aspect of the present disclosure, a motor controller is provided, including the above-described filter assembly.
Through above-mentioned technical scheme, the electric connection piece is used as the pin of being connected with outside electricity to the condenser of this disclosure, compares as the pin with the round pin joint that uses among the correlation technique, and the self length of electric connection piece is shorter and with the area of contact of electric capacity core package bigger to reduced the equivalent inductance of condenser, promoted the filtering performance of condenser.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a block diagram of a capacitor provided by an embodiment of the present disclosure;
fig. 2 is a connection structure diagram of a capacitor core pack and an electric connection sheet of a capacitor according to an embodiment of the present disclosure;
Fig. 3 is a block diagram of a capacitor, a filter assembly, and a filter assembly in a motor controller according to an embodiment of the present disclosure.
Description of the reference numerals
1-A housing; 2-a receiving cavity; 3-a capacitor core pack; 4-an electrical connection piece; 401-connecting a sheet body; 402-a first electrical connection; 403-connecting holes; 404-a second electrical connection; 405-notch; 406-a sheet-like structure; 5-a filter core; 6-direct current busbar.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In this disclosure, unless otherwise indicated, terms of orientation such as "inner and outer" are used to refer to "inner and outer" with respect to the contour of the corresponding component itself. In addition, the terms "first," "second," and the like, as used in this disclosure, are used to distinguish one element from another element without sequence or importance. Furthermore, in the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.
In order to achieve the above object, as shown in fig. 1 to 3, a first aspect of the present disclosure provides a capacitor, including a case 1, a capacitor core pack 3, and an electrical connection sheet 4, wherein the case 1 has a receiving cavity 2, the capacitor core pack 3 is disposed in the receiving cavity 2, and the electrical connection sheet 4 is connected to the capacitor core pack 3 and extends to the outside of the case 1. The capacitor disclosed by the disclosure uses the electric connection sheet 4 as the pin, replaces a round pin connector in the related art, improves the contact area between the pin and the capacitor core pack 3 on one hand, and reduces the length of the pin on the other hand, thereby reducing the equivalent inductance of the capacitor and improving the filtering performance of the capacitor.
The electrical connection pads 4 may be made of any suitable conductive metal material, including, for example, but not limited to, red copper.
In the embodiment of the present disclosure, the electrical connection piece 4 includes a connection piece body 401, and a first electrical connection portion 402 for electrically connecting with the dc busbar 6 is formed at an end of the connection piece body 401 extending out of the housing 1; the end of the connecting piece body 401 remote from the first electrical connection portion 402 is provided with a second electrical connection portion 404 for electrical connection with the capacitance core pack 3. As shown in fig. 2, the first electrical connection portion 402 may be provided with a connection hole 403, so that when the capacitor is connected with the dc busbar 6 through the first electrical connection portion 402, the capacitor may be directly connected with the dc busbar 6 by using a screw or a bolt, so that the connection between the capacitor and the dc busbar is more convenient, fast, simple and efficient, and of course, a worker may connect the capacitor with the dc busbar 6 in a welding manner according to the current situation.
In other embodiments, in order to reduce the stress generated when the electrical connection piece 4 is connected to the dc busbar 6 by means of a screw or welding, a notch 405 for reducing stress concentration may be formed at the connection portion between the connection piece body 401 and the first electrical connection portion 402, so as to prevent the electrical connection piece 4 from being broken due to excessive stress.
The second electrical connection portion 404 and the connection piece body 401 may be connected in any manner, for example, as shown in fig. 2, the second electrical connection portion 404 is configured as a sheet structure 406 and is connected perpendicular to the connection piece body 401, that is, the second electrical connection portion 404 and the connection piece body 401 may correspond to two faces of the capacitor core pack 3, so that when the electric connection piece 4 is connected with the capacitor core pack 3, a worker can connect the electric connection piece 4 with two faces of the capacitor core pack 3 at the same time, thereby increasing stability after the electric connection piece 4 is connected with the capacitor core pack 3.
In still other embodiments, the second electrical connection portion 404 may also extend from the end surfaces of the positive electrode end and the negative electrode end of the capacitor core pack 3 directly to the outside of the housing 1 so as to be connected with the connection piece body 401, and a worker may make appropriate adjustments on the connection manner between the second electrical connection portion 404 and the connection piece body 401 according to the current use environment, which is not limited in this disclosure.
In some embodiments of the present disclosure, there are two electrical connection tabs 4, one of the two electrical connection tabs 4 being welded to the positive terminal of the capacitive core pack 3 and the other being welded to the negative terminal of the capacitive core pack 3. In order to facilitate the extreme connection of the second electrical connection portion 404 and the capacitor core pack 3 and improve the connection stability of the two, the sheet structure 406 may have a plurality of sheet structures 406, the plurality of sheet structures 406 are arranged on the capacitor core pack 3 at intervals, the widths of the plurality of sheet structures 406 are smaller than those of the connection sheet body 401 and the first electrical connection portion 402, the plurality of sheet structures 406 may increase the welding point positions of the electrical connection sheet 4 when the electrical connection sheet is connected with the capacitor core pack 3, so as to ensure the connection stability of the two, and in addition, the design of the sheet structures 406 increases the contact area with the extreme end of the capacitor core pack 3 compared with the use of round pin connectors in the related art, so that the heating value of the connection part of the sheet structures 406 and the capacitor core pack 3 can be reduced, and further the working efficiency of the capacitor is ensured.
In other embodiments, as shown in fig. 1 and 2, a gap is formed between the inner wall of the housing 1 and the capacitor core pack 3, and pouring sealant is filled in the gap to fill the capacitor core pack 3 in the accommodating cavity 2 of the housing 1, so that the capacitor core pack 3 is filled in the housing 1, and the capacitor core pack 3 and the capacitor core pack are tightly connected together, so that on one hand, the stability of the capacitor core pack and the capacitor core pack after connection is ensured, and on the other hand, the volume of the capacitor core pack and the capacitor core pack after connection can be reduced to a certain extent.
In a second aspect of the present disclosure, there is provided a filter assembly, as shown in fig. 3, including a filter core 5, a dc bus 6, and the above capacitor; the capacitor and the filter core 5 are both connected to the dc busbar 6. The filter assembly has all the advantages of the capacitor, and the disclosure is not repeated here. Furthermore, it should be noted that, since the equivalent inductance of the capacitor is reduced, the volume of the filter core 5 can be relatively reduced, so that the volume of the whole filter assembly can be smaller, and space occupation is saved.
In a third aspect of the present disclosure, a motor controller is provided, which includes the above-mentioned filtering component, and the motor controller has all the beneficial effects of the above-mentioned capacitor and filtering component, and the disclosure is not repeated herein.
In summary, the working principle of the capacitor disclosed by the disclosure is as follows: the second electrical connection parts 404 of the two electrical connection pieces 4 are welded to the positive end and the negative end of the capacitor core pack 3 by a worker, and the second electrical connection parts 404 are provided with a plurality of sheet structures 406, so that the heating value of the connection parts of the two electrical connection pieces is reduced under the condition that the connection stability of the two electrical connection pieces is ensured after the two electrical connection pieces are connected with the capacitor core pack 3, in addition, the connection piece body 401 positioned on the other side (namely the insulating surface of the capacitor core pack 3) of the capacitor core pack 3 can be selected according to the current working environment, whether the connection piece body 401 is welded with the capacitor core pack 3 is further increased, the stability of the capacitor core pack 3 after the connection piece 3 is connected with the electrical connection piece 4 is further increased, then the capacitor core pack 3 and the electrical connection piece 4 are encapsulated in the accommodating cavity 2 of the shell 1 through pouring sealant, so that the capacitor is formed together with the shell 1, at the moment, the capacitor core pack 3, part area of the connection piece body 401 and the second electrical connection part 404 of the electrical connection piece 4 are positioned inside the shell 1, the other part area of the connecting piece body 401 and the first electric connecting part 402 are positioned at the outer side of the shell 1 so as to be convenient for connecting the capacitor with the direct current busbar 6, and as the connecting hole 403 is arranged on the first electric connecting part 402, a worker can connect the capacitor with the direct current busbar 6 in a bolt connection mode, so that the connecting mode of the two electric connecting pieces is simpler and more convenient while the connecting stability of the two electric connecting pieces is ensured, the first electric connecting parts 402 of the two electric connecting pieces 4 can be both connected with the direct current busbar 6 by adopting bolts, can be both connected with the direct current busbar 6 by adopting a welding mode, or one electric connecting part is connected with the direct current busbar 6 by adopting a bolt connection mode, and the other electric connecting part is connected by adopting a welding mode as long as the electric connecting piece can achieve the effect of stable connection with the direct current busbar 6, the capacitor of the disclosure uses the electric connection sheet 4 as a pin electrically connected with the outside, and compared with the use of the round pin joint as a pin in the related art, the electric connection sheet 4 has shorter self length and larger contact area with the capacitor core pack 3, thereby reducing the equivalent inductance of the capacitor and improving the filtering performance of the capacitor.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A capacitor, comprising:
A housing having a receiving cavity;
the capacitor core bag is arranged in the accommodating cavity; and
And the electric connecting sheet is connected with the capacitor core bag and extends to the outside of the shell.
2. The capacitor of claim 1, wherein the electrical connection tab comprises a connection tab body having a first electrical connection portion formed at an end thereof extending out of the housing for electrical connection with a dc busbar;
One end of the connecting sheet body, which is far away from the first electric connection part, is provided with a second electric connection part which is used for being electrically connected with the capacitor core package.
3. The capacitor of claim 2, wherein the first electrical connection is provided with a connection hole.
4. A capacitor according to claim 3, wherein the junction of the connecting tab body and the first electrical connection is formed with a notch for reducing stress concentrations.
5. The capacitor of claim 4, wherein the second electrical connection is configured as a sheet structure and is connected perpendicularly to the connection pad body.
6. The capacitor of claim 5, wherein the plurality of tab structures are spaced apart on the capacitor core pack and each of the plurality of tab structures has a width less than the widths of the tab body and the first electrical connection.
7. The capacitor of claim 1, wherein there are two of said electrical connection tabs, one of which is welded to the positive end of said capacitor core pack and the other of which is welded to the negative end of said capacitor core pack.
8. The capacitor of any one of claims 1-7, wherein a gap is provided between an inner wall of the housing and the capacitive core pack, the gap being filled with a potting adhesive to pot the capacitive core pack within the receiving cavity of the housing.
9. A filter assembly comprising a filter core, a dc busbar and a capacitor as claimed in any one of claims 1 to 8;
The capacitor and the filter magnetic core are both connected to the direct current busbar.
10. A motor controller comprising the filter assembly of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322710246.5U CN220963054U (en) | 2023-10-09 | 2023-10-09 | Capacitor, filter assembly and motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322710246.5U CN220963054U (en) | 2023-10-09 | 2023-10-09 | Capacitor, filter assembly and motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220963054U true CN220963054U (en) | 2024-05-14 |
Family
ID=90976860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322710246.5U Active CN220963054U (en) | 2023-10-09 | 2023-10-09 | Capacitor, filter assembly and motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220963054U (en) |
-
2023
- 2023-10-09 CN CN202322710246.5U patent/CN220963054U/en active Active
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