CN208285218U - A kind of power-supply filter - Google Patents
A kind of power-supply filter Download PDFInfo
- Publication number
- CN208285218U CN208285218U CN201820559206.1U CN201820559206U CN208285218U CN 208285218 U CN208285218 U CN 208285218U CN 201820559206 U CN201820559206 U CN 201820559206U CN 208285218 U CN208285218 U CN 208285218U
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- China
- Prior art keywords
- power
- electric connector
- shell
- filter circuit
- shielding shell
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Abstract
The utility model relates to a kind of power-supply filters, including shielding shell, the filter circuit in shielding shell, electric connector and out splice going splice on shielding shell.The input terminal of filter circuit is connected with electric connector, and the output end of filter circuit is connected with out splice going splice.The partition for electromagnetism interference is equipped between electric connector and filter circuit in shielding shell.A kind of power-supply filter of the utility model, electric connector setting are directly connected to filter circuit on shielding shell, solve the problems, such as that power-supply filter input port electromagnetic leakage is serious；Simultaneously in the partition of the inside setting electromagnetism interference of shielding shell, so that it is had electro-magnetic screen function, avoid and adverse effect is caused to other equipment.This power-supply filter facilitates installation, is suitable for more multi-environment.
Description
Technical field
The utility model relates to a kind of power-supply filters.
Background technique
With the fast development of current science, electronic product rapid development, the following various electromagnetic interferences are also more next
It is more, therefore electromagnetic compatibility is the essential one aspect to be considered in the design process of electronic product.But high-precision
During the design of close control equipment, often only consider the integrality of power-supply filter, but usually have ignored power-supply filter with
Electromagnetic interference problem caused by transmission line between electric connector and power-supply filter input port electromagnetic leakage are serious
Problem is being implemented in use, often to take a lot of time solution is designed without the electromagnetic compatibility problem considered.With electricity
Sub- equipment develops towards smaller, lighter, more smart direction, and the design for the electromagnetic compatibility of power-supply filter power port is tight
Compel.
Summary of the invention
In order to solve problems in the prior art, the utility model provides a kind of power-supply filter, can eliminate power supply filter
Electromagnetic interference caused by transmission line between wave device and electric connector, solves that power-supply filter input port electromagnetic leakage is serious asks
Topic.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows: a kind of power-supply filter comprising shielding
Shell, the filter circuit in the shielding shell, electric connector and out splice going splice on the shielding shell, it is described
The input terminal of filter circuit is connected with the electric connector, and the output end of the filter circuit is connected with the out splice going splice
Connect, it is described shielding shell in positioned at the electric connector and the filter circuit between be equipped be used for electromagnetism interference every
Plate.
Preferably, the shielding shell includes having the shell being open, the cover board matched with the shell nozzle, described
Opening is equipped with the groove to match with the cover board.In order to install cover board to shell.
Further, the shell include for store the first incorporating section of the filter circuit, for store it is described every
Second incorporating section of plate, second incorporating section and first incorporating section are arranged in ladder, and the electric connector is set to institute
It states on the second incorporating section, the input terminal of the filter circuit passes through second incorporating section and is connected with the electric connector.
Still further, second incorporating section is oppositely arranged with the opening.
Preferably, the electric connector is oppositely arranged with the opening.
Preferably, the shielding shell further includes set on the conductive rubber strip between the shell and the cover board.
Preferably, the shielding shell is equipped with for installing fixed mounting base, and installation is offered in the mounting base
Through-hole.
Preferably, shielding gasket is equipped between the shielding shell and the electric connector.
Preferably, the out splice going splice include connecting terminal, the housing that is set on the connecting terminal.
Preferably, the filter circuit includes the common-mode inductor being connected on the filter circuit, is parallel to the filter
First differential mode capacitor of wave circuit input terminal, the second differential mode capacitor for being parallel to the filter circuit output end, two be connected in series
The first common mode capacitance and the second common mode capacitance, two first common mode capacitances being connected in series and the second common mode capacitance it is whole with
Second differential mode capacitor is in parallel, and their connecting pin ground connection.
Due to the application of the above technical scheme, technical solution bring provided by the utility model has the beneficial effect that:
A kind of power-supply filter of the utility model, electric connector setting directly connect on shielding shell with filter circuit
It connects, solves the problems, such as that power-supply filter input port electromagnetic leakage is serious；It is dry that anti-electromagnetism is set in the inside of shielding shell simultaneously
The partition disturbed, makes it have electro-magnetic screen function, avoids and causes adverse effect to other equipment.This power-supply filter facilitates peace
Dress is suitable for more multi-environment.
Detailed description of the invention
Attached drawing 1 is the perspective diagram of the power-supply filter of the utility model；
Attached drawing 2 is the schematic elevation view of the power-supply filter of the utility model；
Attached drawing 3 is the schematic rear view of the power-supply filter of the utility model；
Attached drawing 4 is the schematic top plan view of the power-supply filter of the utility model；
Attached drawing 5 is the volume rendering schematic diagram of the shielding shell of the power-supply filter of the utility model.
Wherein, appended drawing reference includes: 1, shielding shell；11, shell；11a, the first incorporating section；11b, the second incorporating section；
12, cover board；13, mounting base；2, filter circuit；21, common-mode inductor；22, the first differential mode capacitor；23, the second differential mode capacitor；
24, the first common mode capacitance；25, the second common mode capacitance；3, electric connector；4, out splice going splice；41, connecting terminal；42, housing；
5, partition.
Specific embodiment
The technical solution of the utility model is further elaborated with specific embodiment with reference to the accompanying drawing.
A kind of power-supply filter as shown in Fig. 1 to 5 comprising shielding shell 1, the filtered electrical in shielding shell 1
Road 2, electric connector 3 and out splice going splice 4 on shielding shell 1.The input terminal of filter circuit 2 is connected with electric connector 3,
The output end of filter circuit 2 is connected with out splice going splice 4.In shielding shell 1 between electric connector 3 and filter circuit 2
Equipped with the partition 5 for electromagnetism interference.Electromagnetic leakage occurs to shielding to eliminate electric connector 3 and 2 junction of filter circuit
It is interfered outside shell 1.
Shielding shell 1 includes with the shell 11 being open, the cover board 12 matched with the opening of shell 1, is set to shell 11
With the conductive rubber strip between cover board 12.Opening is equipped with the groove to match with cover board 12, in order to install extremely cover board 12
On shell 11.Preferably, shell 11 is fixed by the way of riveted with cover board 12.
Shell 11 includes for storing the first incorporating section 11a of filter circuit 2, the second incorporating section for storing partition 5
11b, the second incorporating section 11b and the first incorporating section 11a are arranged in ladder, and the volume of the second incorporating section 11b is less than the first incorporating section
The volume of 11a.Electric connector 3 is set on the second incorporating section 11b, and the input terminal of filter circuit 2 passes through the second incorporating section 11b and electricity
Connector 3 is connected.The partition 5 of 11b being capable of effective electromagnetism interference in second incorporating section.Preferably, it shields shell 1 and is electrically connected
It connects and is equipped with shielding gasket between device 3.Out splice going splice 4 includes connecting terminal 41, the housing 42 being set on 41 son of terminals.This
In embodiment, the second incorporating section 11b is oppositely arranged with opening；Electric connector 3 is oppositely arranged with opening.
It shields shell 1 and is equipped with the mounting base 13 for being used for installation, installation through-hole is offered in mounting base 13, in order to install
Fix this power-supply filter.
Filter circuit 2 includes the common-mode inductor 21 being connected on filter circuit 2, is parallel to 2 input terminal of filter circuit
First differential mode capacitor 22,23, two the first common mode capacitances being connected in series of the second differential mode capacitor for being parallel to 2 output end of filter circuit
24 and second common mode capacitance 25.Two the first common mode capacitances 24 being connected in series and the second common mode capacitance 25 are whole electric with the second differential mode
It is in parallel to hold 23, and their connecting pin is grounded.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of power-supply filter, it is characterised in that: it include shield shell, set on it is described shielding shell in filter circuit,
Electric connector and out splice going splice on the shielding shell, the input terminal of the filter circuit are connected with the electric connector
It connects, the output end of the filter circuit is connected with the out splice going splice, and the electric connector is located in the shielding shell
The partition for electromagnetism interference is equipped between the filter circuit.
2. power-supply filter according to claim 1, it is characterised in that: the shielding shell includes the shell with opening
Body, the cover board matched with the shell nozzle, the opening are equipped with the groove to match with the cover board.
3. power-supply filter according to claim 2, it is characterised in that: the shell includes for storing the filtered electrical
First incorporating section on road, the second incorporating section for storing the partition, second incorporating section are in first incorporating section
Ladder setting, the electric connector are set on second incorporating section, and the input terminal of the filter circuit passes through described second
Incorporating section is connected with the electric connector.
4. power-supply filter according to claim 3, it is characterised in that: second incorporating section is opposite with the opening to be set
It sets.
5. according to any power-supply filter of claim 2 to 4, it is characterised in that: the electric connector and the opening
It is oppositely arranged.
6. power-supply filter according to claim 2, it is characterised in that: the shielding shell further includes being set to the shell
With the conductive rubber strip between the cover board.
7. power-supply filter according to claim 1, it is characterised in that: the shielding shell is equipped with for installing fixation
Mounting base, offer installation through-hole in the mounting base.
8. power-supply filter according to claim 1, it is characterised in that: between the shielding shell and the electric connector
Equipped with shielding gasket.
9. power-supply filter according to claim 1, it is characterised in that: the out splice going splice includes connecting terminal, is arranged
Housing on the connecting terminal.
10. power-supply filter according to claim 1, it is characterised in that: the filter circuit includes being connected on the filter
Common-mode inductor on wave circuit, is parallel to the filtered electrical at the first differential mode capacitor for being parallel to the filter circuit input terminal
Second differential mode capacitor of road output end, two the first common mode capacitances and the second common mode capacitance being connected in series, two institutes being connected in series
It states the first common mode capacitance and the second common mode capacitance is whole in parallel with second differential mode capacitor, and their connecting pin ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559206.1U CN208285218U (en) | 2018-04-18 | 2018-04-18 | A kind of power-supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559206.1U CN208285218U (en) | 2018-04-18 | 2018-04-18 | A kind of power-supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208285218U true CN208285218U (en) | 2018-12-25 |
Family
ID=64751434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820559206.1U Active CN208285218U (en) | 2018-04-18 | 2018-04-18 | A kind of power-supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208285218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003578A (en) * | 2020-08-28 | 2020-11-27 | 东展科博(北京)技术有限公司 | Portable interference isolation shielding filtering system |
-
2018
- 2018-04-18 CN CN201820559206.1U patent/CN208285218U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003578A (en) * | 2020-08-28 | 2020-11-27 | 东展科博(北京)技术有限公司 | Portable interference isolation shielding filtering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190527 Address after: 215000 South Ring Road, Tangqiao Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 188 Patentee after: Jiangsu Yidu Intelligent Special Equipment Co., Ltd. Address before: 210 014 28 Blacksmith Ying Road, Xuanwu District, Nanjing City, Jiangsu Province Patentee before: Nanjing Galaxy Yinning intelligent mechanical and Electrical Co., Ltd. |