CN203134565U - Parallel capacitor bank - Google Patents
Parallel capacitor bank Download PDFInfo
- Publication number
- CN203134565U CN203134565U CN 201320011112 CN201320011112U CN203134565U CN 203134565 U CN203134565 U CN 203134565U CN 201320011112 CN201320011112 CN 201320011112 CN 201320011112 U CN201320011112 U CN 201320011112U CN 203134565 U CN203134565 U CN 203134565U
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- capacitor
- copper
- copper bar
- welded
- capacitor body
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Abstract
A parallel capacitor bank relates to the capacitor technical field; the capacitor bank is formed by at least more than one set of capacitor cores connected in parallel; the one set of capacitor cores is formed by at least one capacitor core; copper stranded wires are welded on end faces of the capacitor cores and are welded on conflux copper bars; and the conflux copper bars are connected with a bending copper bar. The parallel capacitor bank employs the copper stranded wires for connection; because cross sections of the copper stranded wires are small, so round welding spots on the capacitor cores are small, and needed welding time is short; no damages will be caused to the end faces of the capacitor cores; the copper stranded wires and the copper bars are combined for usage, so usage amount of the wires is reduced; and simultaneously loss tangent tan [delta], resistance ESR and inductance ESL of the capacitor are obviously reduced.
Description
Technical field
The utility model relates to the capacitor technology field, is specifically related to a kind of metallic film capacitor group that is connected in parallel.
Background technology
The capacity of single metallic film capacitor core group can surpass 100 μ F at present, but the bigger capacitor of rated capacitance if desired, need many capacitor parallel connections, its proof voltage is constant after the capacitor body parallel connection, and capacitance is the capacitance sum of all shunt capacitor fuses.
A plurality of capacitor bodies are together in parallel, two kinds of ways are arranged at present: one be to use sectional area enough big lead each capacitor body is coupled together, the solder stick that consumes when the shortcoming of doing like this is welding is more, and weld time is longer, may cause capacitor body end face damaged.Adopt sectional area enough big lead can guarantee the ampacity of capacitor group exit, but single capacitor body is then seemed to be to waste.The losstangenttan of capacitor, resistance ESR and inductance ESL are also bigger.The 2nd, single capacitor is drawn by the less lead of sectional area, in terminal multiple conducting wires is put together and draws.The shortcoming of this method is that lead-out wire is more, has increased cost, and also the losstangenttan of capacitor, resistance ESR and inductance ESL are also bigger.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of Shunt Capacitor Unit, and capacitor body can not damaged when welding, reduces lead, scolding tin use cost, obtains lower consumption loss angle tangent tan δ, resistance ESR and inductance ESL simultaneously.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of Shunt Capacitor Unit, it is characterized in that: described capacitor group is composed in parallel by the capacitor body more than at least one group, a described group capacitor fuse is made of at least one capacitor body, described capacitor body end face is welded with copper stranded conductor, described copper stranded conductor is welded on the confluence copper bar, and described confluence copper bar is connected with the bending copper bar.
Described confluence copper bar is welded on the bending copper bar by rectangular tin welding spot.
Described copper stranded conductor is continuously the serpentine of bending, roughly is snakelike cabling.
Described copper stranded conductor is connected by circular solder joint with capacitor body, confluence copper bar.
Described capacitor body is circular.
Directly do not connect between the utility model capacitor body, after using corresponding copper stranded conductor single the required ampacity of capacitor body, that sectional area is less and capacitor body end face to weld together, be welded on the confluence copper bar again, and then connect on the another capacitor body end face, until many capacitor bodies are collected on the confluence copper bar by copper stranded conductor, confluence copper bar directly is not connected with capacitor body, and copper stranded conductor is connected by circular solder joint with capacitor body, confluence copper bar.
The beneficial effects of the utility model are: because the copper stranded conductor sectional area is less, the circular solder joint that drops on the capacitor body is also less, the weld time that needs is few, can not cause damage by the capacitor body end face, by being used in combination of copper stranded conductor and copper bar, reduced the use amount of lead, consumption loss angle tangent tan δ, the resistance ESR of capacitor and inductance ESL all obviously descend simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the capacitor group is connected in parallel by many capacitor bodies 1, directly do not connect between the capacitor body 1, draw after copper stranded conductor 2 welds together with capacitor body 1 end face, be welded on again on the confluence copper bar 3, and then connect on another capacitor body 1 end face, until many capacitor bodies 1 are collected on the confluence copper bar 3 by copper stranded conductor 2, confluence copper bar 3 directly is not connected with capacitor body 1, copper stranded conductor 2 and capacitor body 1, confluence copper bar 3 connects by circular solder joint 5, and many confluence copper bar 3 are connected by rectangular tin welding spot 6 with bending copper bar 4.Use bending copper bar 4 can gather the electric current that flows out from many confluence copper bar 3 preferably, also make things convenient for the electrode of capacitor group to draw simultaneously.In order further to reduce the inductance of Shunt Capacitor Unit, copper stranded conductor 2 is snakelike cabling when welding.
The control of the loss angle tangent of the utility model Shunt Capacitor Unit is below 0.001, and equivalent series resistance ESR control below 5m Ω, and self-induction ESL controls below 60nH, than all reductions significantly of respective value of the shunt capacitor of existing structure; Capacitor body be shaped as circle, the capacitor shape also can be flat, ellipse etc.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. Shunt Capacitor Unit, it is characterized in that: described capacitor group is composed in parallel by the capacitor body more than at least one group, a described group capacitor fuse is made of at least one capacitor body, described capacitor body end face is welded with copper stranded conductor, described copper stranded conductor is welded on the confluence copper bar, and described confluence copper bar is connected with the bending copper bar.
2. Shunt Capacitor Unit according to claim 1, it is characterized in that: described confluence copper bar is welded on the bending copper bar by rectangular tin welding spot.
3. Shunt Capacitor Unit according to claim 1 is characterized in that: the serpentine of described copper stranded conductor for bending continuously.
4. Shunt Capacitor Unit according to claim 1, it is characterized in that: described copper stranded conductor is connected by circular solder joint with capacitor body, confluence copper bar.
5. Shunt Capacitor Unit according to claim 1 is characterized in that: described capacitor body is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011112 CN203134565U (en) | 2013-01-09 | 2013-01-09 | Parallel capacitor bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011112 CN203134565U (en) | 2013-01-09 | 2013-01-09 | Parallel capacitor bank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134565U true CN203134565U (en) | 2013-08-14 |
Family
ID=48942516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320011112 Expired - Fee Related CN203134565U (en) | 2013-01-09 | 2013-01-09 | Parallel capacitor bank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465082A (en) * | 2014-11-21 | 2015-03-25 | 安徽铜峰电子股份有限公司 | Low-inductance power capacitor |
| CN106409502A (en) * | 2016-06-15 | 2017-02-15 | 浙江海得新能源有限公司 | Connection structure for capacitor fixing |
-
2013
- 2013-01-09 CN CN 201320011112 patent/CN203134565U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465082A (en) * | 2014-11-21 | 2015-03-25 | 安徽铜峰电子股份有限公司 | Low-inductance power capacitor |
| CN104465082B (en) * | 2014-11-21 | 2017-09-29 | 安徽铜峰电子股份有限公司 | Low inductive power capacitor |
| CN106409502A (en) * | 2016-06-15 | 2017-02-15 | 浙江海得新能源有限公司 | Connection structure for capacitor fixing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140109 |