CN203774771U - High-voltage large-current safety DC filter - Google Patents
High-voltage large-current safety DC filter Download PDFInfo
- Publication number
- CN203774771U CN203774771U CN201420011857.9U CN201420011857U CN203774771U CN 203774771 U CN203774771 U CN 203774771U CN 201420011857 U CN201420011857 U CN 201420011857U CN 203774771 U CN203774771 U CN 203774771U
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- filter
- fuse
- resistance
- capacitor
- parallel circuits
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- 239000003990 capacitor Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a high-voltage large-current safety DC filter, which comprises a filter capacitor and a release resistor, wherein the filter capacitor is grounded; the release resistor is parallel to the filter capacitor; the release resistor and the filter capacitor are parallelly connected and then connected with a fuse; and the fuse is grounded. According to the high-voltage large-current safety DC filter, the release resistor is arranged between the equipment and the ground and assembled inside different pieces of equipment, residual energy inside the equipment can be quickly released when the equipment stops working, and reliability of the equipment is facilitated.
Description
Technical field
The utility model relates to a kind of DC filter, is specifically related to a kind of high-voltage large current fail safe DC filter.
Background technology
Because the frequency of utilization of high-voltage large current DC equipment in circuit and surrounding environment is more and more higher, with conventional DC filter filtering the problem of not enough EMC Requirements become increasingly conspicuous.DC filter, great majority adopt L-types, C type, T-shaped, pi-network to be combined to form multi-stage filter circuit, the Main Function of DC filter is that high-frequency interferencing signal is played to attenuation, just itself, the waveform of control signal, power supply signal is not existed to any distortion problem.In every field, due to scientific and technological development, single voltage source, level signal etc., all can not meet the operation of an equipment.Can be by several or tens kinds in same equipment, What is more is tens kinds of signals.The rising that level in multi-signal will be gradually so, the increase of power etc.Low-voltage direct-current filter originally will extend high-voltage large current filter gradually.Equipment not duration of work will cause DC filter between ground and line, to have remaining energy.If will electric elements be impacted or be damaged when energy is excessive.What is more can damage human body, equipment is caused to damage to such an extent as to generation major accident.
Utility model content
The utility model has overcome the deficiencies in the prior art, a kind of high-voltage large current fail safe DC filter is provided, solution equipment not duration of work cause DC filter between ground and line, to have remaining energy, when energy is excessive, electric elements are impacted or the problem such as damage.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A high-voltage large current fail safe DC filter, comprises filtering capacitor, described filtering capacitor ground connection; Described high-voltage large current fail safe DC filter also comprises release resistance, and described release resistance is in parallel with described filtering capacitor; After described release resistance is in parallel with described filtering capacitor, connect fuse, described fuse ground connection.
Further technical scheme is that high-voltage large current fail safe DC filter is C type filter circuit, and described C type filter circuit comprises capacitor in parallel and resistance, and the capacitor of described parallel connection is connected fuse with resistance, described fuse ground connection.
Further technical scheme is that high-voltage large current fail safe DC filter is L-type filter circuit, described L-type filter circuit comprises the parallel circuits that capacitor and resistance form, also comprise filter inductance, described filter inductance is connected with the parallel circuits that resistance forms with described capacitor; Described capacitor is connected fuse, described fuse ground connection with the parallel circuits that resistance forms.
Further technical scheme is that high-voltage large current fail safe DC filter is π type filter circuit, described π type filter circuit comprises the first parallel circuits that the first capacitor and the first resistance form, the second parallel circuits that the second capacitor and the second resistance form, and filter inductance; Described filter inductance is connected between described the first parallel circuits and the second parallel circuits; Described the first parallel circuits connects the first fuse, described the first fuse ground connection; Described the second parallel circuits connects the second fuse, described the second fuse ground connection.
Further technical scheme is that high-voltage large current fail safe DC filter is T-shaped filter circuit, and described T-shaped filter circuit comprises the 3rd parallel circuits that the 3rd capacitor and the 3rd resistance form, the 3rd inductance and the 4th inductance; Described the 3rd parallel circuits is connected between described the 3rd inductance and described the 4th inductance; Described the 3rd parallel circuits connects fuse, described fuse ground connection.
Compared with prior art, the beneficial effects of the utility model are: the utility model high-voltage large current filter is provided with release resistance between equipment and ground, are assembled in different equipment, when equipment quits work, the quick residual amount of energy in release device, is conducive to the reliability of equipment.
Accompanying drawing explanation
Fig. 1 is Embodiment C type filter circuit schematic diagram of the utility model.
Fig. 2 is embodiment L-type filter circuit schematic diagram of the utility model.
Fig. 3 is embodiment π type filter circuit schematic diagram of the utility model.
Fig. 4 is the T-shaped filter circuit schematic diagram of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Embodiment 1
As shown in Figure 1, Fig. 1 shows Embodiment C type filter circuit schematic diagram of the utility model, the present embodiment high-voltage large current fail safe DC filter is C type filter circuit, C type filter circuit comprises capacitor C1 in parallel and discharges resistance R 1, capacitor C1 in parallel is connected fuse Fuse1, fuse ground connection with release resistance R 1.The present embodiment is provided with release resistance between equipment and ground, is assembled in different equipment, and when equipment quits work, the quick residual amount of energy in release device, is conducive to the reliability of equipment.High-voltage large current fail safe DC filter has different specified resistance grades.The resistance of selecting in use relatively other branch roads is all very large, and the loss of electric energy can be remembered hardly so in the course of the work.
Embodiment 2
As shown in Figure 2, Fig. 2 shows embodiment L-type filter circuit schematic diagram of the utility model, the present embodiment high-voltage large current fail safe DC filter is L-type filter circuit, L-type filter circuit comprises that filtering capacitor C2 and L-type filter circuit discharge the parallel circuits that resistance R 2 forms, also comprise filter inductance L2, filter inductance L2 is connected with the parallel circuits that L-type filter circuit discharges resistance R 2 compositions with filtering capacitor C2; Filtering capacitor C2 is connected fuse Fuse2, fuse ground connection with the parallel circuits that L-type filter circuit discharges resistance R 2 compositions.The present embodiment is provided with release resistance between equipment and ground, is assembled in different equipment, and when equipment quits work, the quick residual amount of energy in release device, is conducive to the reliability of equipment.
Embodiment 3
As shown in Figure 3, Fig. 3 shows embodiment π type filter circuit schematic diagram of the utility model, the present embodiment high-voltage large current fail safe DC filter is π type filter circuit, π type filter circuit comprises the first parallel circuits that the first capacitor C3 and the first resistance R 3 form, the second parallel circuits that the second capacitor C31 and the second resistance R 31 form, and filter inductance L3; The first resistance and the second resistance are for discharging the release resistance of residual amount of energy.Filter inductance L3 is connected between the first parallel circuits and the second parallel circuits; The first parallel circuits connects the first fuse Fuse3, simultaneously the first fuse ground connection; The second parallel circuits connects the second fuse Fuse31, simultaneously the second fuse ground connection.The present embodiment is provided with release resistance between equipment and ground, is assembled in different equipment, and when equipment quits work, the quick residual amount of energy in release device, is conducive to the reliability of equipment.
Embodiment 4
As shown in Figure 4, Fig. 4 shows the T-shaped filter circuit schematic diagram of embodiment of the utility model, the present embodiment high-voltage large current fail safe DC filter is T-shaped filter circuit, T-shaped filter circuit comprises the 3rd parallel circuits that the 3rd capacitor C4 and the 3rd resistance R 4 form, the 3rd inductance L 4 and the 4th inductance L 41; The 3rd resistance R 4 is for discharging the release resistance of residual amount of energy.The 3rd parallel circuits is connected between the 3rd inductance L 4 and the 4th inductance L 41; One end of the 3rd container C 4 connects one end connection the 4th inductance L 41 of the 3rd inductance L 4, the three resistance R 4.The 3rd parallel circuits connects fuse Fuse4, simultaneously fuse ground connection.The present embodiment is provided with release resistance between equipment and ground, is assembled in different equipment, and when equipment quits work, the quick residual amount of energy in release device, is conducive to the reliability of equipment.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the feature in conjunction with this embodiment, described and be included at least one embodiment that the application's generality describes.In specification, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with any embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although a plurality of explanatory embodiment with reference to utility model is described the utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and within execution mode will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (5)
1. a high-voltage large current fail safe DC filter, comprises filtering capacitor, described filtering capacitor ground connection; It is characterized in that: described high-voltage large current fail safe DC filter also comprises release resistance, and described release resistance is in parallel with described filtering capacitor; After described release resistance is in parallel with described filtering capacitor, connect fuse, described fuse ground connection.
2. high-voltage large current fail safe DC filter according to claim 1, it is characterized in that described high-voltage large current fail safe DC filter is C type filter circuit, described C type filter circuit comprises capacitor in parallel and resistance, the capacitor of described parallel connection is connected fuse with resistance, described fuse ground connection.
3. high-voltage large current fail safe DC filter according to claim 1, it is characterized in that described high-voltage large current fail safe DC filter is L-type filter circuit, described L-type filter circuit comprises the parallel circuits that capacitor and resistance form, also comprise filter inductance, described filter inductance is connected with the parallel circuits that resistance forms with described capacitor; Described capacitor is connected fuse, described fuse ground connection with the parallel circuits that resistance forms.
4. high-voltage large current fail safe DC filter according to claim 1, it is characterized in that described high-voltage large current fail safe DC filter is π type filter circuit, described π type filter circuit comprises the first parallel circuits that the first capacitor and the first resistance form, the second parallel circuits that the second capacitor and the second resistance form, and filter inductance; Described filter inductance is connected between described the first parallel circuits and the second parallel circuits; Described the first parallel circuits connects the first fuse, described the first fuse ground connection; Described the second parallel circuits connects the second fuse, described the second fuse ground connection.
5. high-voltage large current fail safe DC filter according to claim 1, it is characterized in that described high-voltage large current fail safe DC filter is T-shaped filter circuit, described T-shaped filter circuit comprises the 3rd parallel circuits that the 3rd capacitor and the 3rd resistance form, the 3rd inductance and the 4th inductance; Described the 3rd parallel circuits is connected between described the 3rd inductance and described the 4th inductance; Described the 3rd parallel circuits connects fuse, described fuse ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011857.9U CN203774771U (en) | 2014-01-08 | 2014-01-08 | High-voltage large-current safety DC filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011857.9U CN203774771U (en) | 2014-01-08 | 2014-01-08 | High-voltage large-current safety DC filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774771U true CN203774771U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011857.9U Expired - Lifetime CN203774771U (en) | 2014-01-08 | 2014-01-08 | High-voltage large-current safety DC filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634049A (en) * | 2014-11-27 | 2016-06-01 | 中国电子科技集团公司第十八研究所 | Quasi-dual-bus satellite power supply controller |
| CN107091960A (en) * | 2017-06-21 | 2017-08-25 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of extra-high voltage π type DC filters are taken out stitches and preventive trial method |
-
2014
- 2014-01-08 CN CN201420011857.9U patent/CN203774771U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634049A (en) * | 2014-11-27 | 2016-06-01 | 中国电子科技集团公司第十八研究所 | Quasi-dual-bus satellite power supply controller |
| CN107091960A (en) * | 2017-06-21 | 2017-08-25 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of extra-high voltage π type DC filters are taken out stitches and preventive trial method |
| CN107091960B (en) * | 2017-06-21 | 2019-09-17 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of extra-high voltage π type DC filter is taken out stitches and preventive trial method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
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| CX01 | Expiry of patent term |