CN108712156B - Filtering component structure - Google Patents
Filtering component structure Download PDFInfo
- Publication number
- CN108712156B CN108712156B CN201811014609.9A CN201811014609A CN108712156B CN 108712156 B CN108712156 B CN 108712156B CN 201811014609 A CN201811014609 A CN 201811014609A CN 108712156 B CN108712156 B CN 108712156B
- Authority
- CN
- China
- Prior art keywords
- power supply
- filtering
- circuit board
- signal
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 49
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
Abstract
The invention provides a filter assembly structure, comprising: the casing is an open-ended metal box body, filter circuit includes signal filter circuit, main power supply filtering and motor power supply filter circuit, and corresponds to set up signal chamber, main power supply chamber and the motor power supply intracavity of seting up in the casing, the circuit board is located between casing and the fixed plate to can fix after fixing the fixed plate the circuit board, the apron can demountable installation on the fixed plate. According to the invention, the cavity of the whole shell is divided into the power supply filtering cavity provided with the power supply filtering circuit board and the signal filtering cavity provided with the signal filtering circuit board through the partition board, so that the high integration of a plurality of filtering circuits is realized while the good filtering effect of the filtering component is ensured, and the installation, maintenance and use of the filtering component are more convenient.
Description
Technical Field
The invention relates to the field of filter components, in particular to a filter component structure.
Background
Filters are widely used as devices for filtering noise signals in circuits, and are used in various electronic devices. In the special fields of communication equipment, aerospace, carrier-borne equipment and the like, the frequency bandwidth of an electromagnetic environment is large, the field intensity is high, and the electromagnetic compatibility of a power supply conversion component directly influences whether other equipment in the environment can safely and reliably operate. The power supply filter circuit board is a filter circuit consisting of a capacitor, an inductor and a resistor, and the function of the power supply filter circuit board is to obtain a power supply signal with a specific frequency or eliminate the power supply signal with the specific frequency by connecting the power supply filter circuit board into a power supply. The power supply filter circuit board is a passive bidirectional network, one end of which is a power supply, and the other end of which is a load. The principle of the power supply filter circuit board is an impedance adapting network, namely the larger the impedance adaptation between the input end and the output end of the power supply filter circuit board and the power supply and the load end is, the more effective the attenuation of electromagnetic interference is. The filter circuit board can effectively filter the frequency points of the specific frequency or the frequencies outside the frequency points in the power line to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency so as to meet the power requirements of different specific frequencies.
In order to ensure stable and reliable operation of electronic equipment, reduce electromagnetic pollution and meet the requirement of electromagnetic compatibility, the filter is widely applied to various electronic equipment. In the prior art, independent filter assemblies are respectively designed for the power supply and the signals, so that the filter assemblies are very troublesome to install, the filter assemblies are not well contacted with the installed box body, and the filter assemblies are poor in filter effect. In addition, the shielding effect of the existing filter assembly is poor, a plurality of filter assemblies are installed, radiation generated by the filter assemblies can affect electronic equipment in the box body, and the safety and the concealment of the box body can be seriously affected.
Disclosure of Invention
The invention aims to solve the problems of low integration level and poor filtering effect in the prior art and provides a filtering component structure aiming at the defects in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a filter assembly structure comprising: the casing, design filter circuit in the casing, install in the casing the circuit board, be used for fixed circuit board's fixed plate and apron, the casing is a side open-ended metal box body, filter circuit includes signal filter circuit, main power supply filter and motor power supply filter circuit, and corresponds signal chamber, main power supply chamber and the motor power supply intracavity of seting up in the casing, signal chamber, main power supply chamber and motor power supply chamber separate by the baffle, and signal chamber, main power supply chamber and motor power supply chamber are the step form setting in proper order, the signal chamber is rectangle and is located the casing top, main power supply chamber is located the motor power supply intracavity that is the rectangle of signal chamber below, the circuit board is located between casing and the fixed plate, and circuit board area and motor power supply chamber opening size match, the fixed plate includes the plate body of cover on the signal chamber and the holding box of cover on the circuit board, so that the fixed plate can be fixed after fixing the circuit board, the apron can dismantle and install on the fixed plate.
Further, the signal filtering circuit, the motor power supply filtering circuit and the main power supply filtering circuit are all encapsulated in the cavities where the signal filtering circuit, the motor power supply filtering circuit and the main power supply filtering circuit are respectively located by heat conducting silicone rubber, and a heat dissipation chamber is arranged on the side face of the shell.
Further, a pair of fastening hooks for connecting the case are fixed to the back of the case.
Further, the shell is provided with a plurality of interfaces with different models.
Further, a handle is fixed on the back surface of the shell.
Further, a wire guide hole is formed in the circuit board, and the wire guide hole penetrates through the wire in the shell.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the cavity of the whole shell is divided into the power supply filtering cavity provided with the power supply filtering circuit board and the signal filtering cavity provided with the signal filtering circuit board through the partition board, the power supply and the signals of the box body terminal are respectively filtered through the power supply filtering circuit integrated on the power supply filtering circuit board and the signal filtering circuits integrated on the signal filtering circuit board, and then the power supply filtering and the signal filtering are shielded through the fixing board, so that the mutual interference caused by the power supply line, the signal line, the power supply filtering circuit and the signal filtering circuit is avoided, the good filtering effect of the filtering component is ensured, and the high integration of the filtering circuits is realized, so that the installation, the maintenance and the use of the filtering component are more convenient;
(2) the invention is designed with the tight hook to fix the shell on the box, thus ensuring that the feedthrough capacitor inside the filter shell is always kept in a connected state in the using and moving processes, avoiding the loose condition of grounding, in addition, facilitating the output lead in the power supply filtering chamber to pass out of the threading port, avoiding opening the threading port on the cover plate above the power supply filtering chamber, avoiding the interference of the power supply line with more frequency spectrums and the power supply filtering circuit to the signal filtering part and the internal equipment of the box terminal, and avoiding the larger radiation generated by the filtering component, thus preventing the performance reduction of other equipment caused by the interference of the power supply signal.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is an assembly view of the present invention;
FIG. 2 is a rear view of the present invention;
fig. 3 is a top view of the present invention.
The reference numerals are as follows: the device comprises a shell 1, a signal cavity 11, a main power cavity 12, a motor power cavity 13, an interface 14, a fastening hook 15, a handle 16, a circuit board 2, a fixing plate 3, a cover plate 4 and a wire 5.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
a filter assembly structure, as shown in fig. 1 to 3, comprising: the circuit board comprises a shell 1, a filter circuit designed in the shell 1, a circuit board 2 arranged in the shell 1, a fixing plate 3 used for fixing the circuit board 2 and a cover plate 4, wherein the shell 1 is a metal box body with an opening at one side, the filter circuit comprises a signal filter circuit, a main power supply filter circuit and a motor power supply filter circuit, the filter circuit is correspondingly arranged in a signal cavity 11, a main power supply cavity 12 and a motor power supply cavity 13 which are arranged in the shell 1, the signal cavity 11, the main power supply cavity 12 and the motor power supply cavity 13 are separated by partition plates, the signal cavity 11, the main power supply cavity 12 and the motor power supply cavity 13 are sequentially arranged in a ladder-shaped manner, the signal cavity 11 is rectangular and is positioned above the shell 1, the main power supply cavity 12 is positioned in the motor power supply cavity 13 with a rectangular shape below the signal cavity 11, the circuit board 2 is positioned between the shell 1 and the fixing plate 3, the area of the circuit board 2 is matched with the opening of the motor power supply cavity 13, and the fixing plate 3 comprises a plate body covered on the signal cavity 11 and a containing box covered on the circuit board 2, so that the fixing plate 3 can be fixed on the cover plate 3 and the cover plate 3 can be fixed and fixed on the cover plate 4 after the circuit board is fixed; the circuit board 2 can be fixed on the shell 1 through the fixing plate 3 by using the screws, the shell 1 can conduct heat, the filter assembly can be ensured to have a certain heat dissipation function, and the filter assembly can still normally operate even under the condition of overhigh temperature; the signal filter circuit, the main power supply filter and the motor power supply filter circuit which are arranged in a scattered manner and originally have very low integration level are arranged in the same shell 1, the whole size of the filter is reduced, and meanwhile, the shell 1, the circuit board 2, the fixing plate 3 and the cover plate 4 are connected and fixed through screws, so that the integration level is high, and meanwhile, the installation and the disassembly are convenient, and the practicability is greatly increased.
Further, signal filter circuit, motor power filter and main power filter circuit are by heat conduction silicone rubber embedment in the cavity at each place, and the heat dissipation room has been seted up to casing 1 side, and the inside hollow structure that is of heat dissipation room to make equipment heat when carrying out heat exchange with the air, because a plurality of filter circuits install in casing 1, can make casing 1 generate heat when using, and then cause efficiency reduction even burn out equipment, and use heat conduction rubber can dispel the heat faster, extension equipment life.
Further, a pair of fastening hooks 15 for connecting with the box body are fixed on the back of the shell 1, the fastening hooks 15 are arranged on the lower portion of the shell 1, and the fastening hooks 15 are fixed with the box body through screws.
Further, the housing 1 is provided with a plurality of interfaces 14 with different types, and the interfaces 14 with different types prevent errors during connection.
Further, the housing 1 is provided with a plurality of different types of interfaces 14, and a gasket 21 is provided between each interface 14 and the housing 1.
Further, a handle 16 is fixed on the back of the housing 1, the handle 16 is used for lifting the filter, two ends of the handle 16 penetrate through gaskets on the housing 1, and the gaskets can prevent the handle 16 from being worn after being used for a long time due to direct contact with the housing 1.
Further, the circuit board 2 is provided with a wire 5 hole through which the wire 5 in the housing 1 passes, so that the output lead in the power supply filtering cavity can conveniently pass out of the threading hole, the threading hole on the cover plate 4 above the power supply filtering cavity is avoided, and the interference of the power supply wire with multiple frequency spectrums and the power supply filtering circuit to the signal filtering part and the internal equipment of the box terminal is avoided.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (4)
1. A filter assembly structure, comprising: the circuit board is positioned in the rectangular motor power supply cavity below the signal cavity, the circuit board is positioned between the shell and the fixed plate, the area of the circuit board is matched with the size of the opening of the motor power supply cavity, the fixed plate comprises a plate body covered on the signal cavity and a containing box covered on the circuit board, so that the circuit board can be fixed after the fixed plate is fixed, and the cover plate is detachably arranged on the fixed plate; the back of the shell is fixedly provided with a pair of fastening hooks for connecting the box body, the fastening hooks are arranged at the lower part of the shell, and a plurality of wire guide holes for wires in the shell to pass through are formed in the circuit board.
2. The filtering assembly structure according to claim 1, wherein the signal filtering circuit, the motor power filtering circuit and the main power filtering circuit are all encapsulated in the respective cavities by heat conducting silicone rubber, and the side surface of the shell is provided with a heat dissipation chamber.
3. A filter assembly structure according to claim 2, wherein the housing is provided with a plurality of different types of interfaces.
4. A filter assembly structure according to claim 3, wherein a handle is secured to the rear face of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014609.9A CN108712156B (en) | 2018-08-31 | 2018-08-31 | Filtering component structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014609.9A CN108712156B (en) | 2018-08-31 | 2018-08-31 | Filtering component structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108712156A CN108712156A (en) | 2018-10-26 |
| CN108712156B true CN108712156B (en) | 2024-04-12 |
Family
ID=63873767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014609.9A Active CN108712156B (en) | 2018-08-31 | 2018-08-31 | Filtering component structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108712156B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219299B (en) * | 2018-10-31 | 2023-08-18 | 重庆山淞信息技术有限公司 | Filter with multiple filtering functions |
| CN112928909B (en) * | 2019-12-06 | 2023-03-07 | 重庆大及电子科技有限公司 | EMI filtering device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5982253A (en) * | 1997-08-27 | 1999-11-09 | Nartron Corporation | In-line module for attenuating electrical noise with male and female blade terminals |
| CN107528560A (en) * | 2017-09-29 | 2017-12-29 | 重庆大及电子科技有限公司 | A kind of laser orientation system filtering unit |
| CN207410309U (en) * | 2017-06-06 | 2018-05-25 | 成都奔月电子技术有限公司 | A kind of filtering unit |
| CN208128205U (en) * | 2018-08-31 | 2018-11-20 | 重庆大及电子科技有限公司 | A kind of filtering unit structure |
-
2018
- 2018-08-31 CN CN201811014609.9A patent/CN108712156B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5982253A (en) * | 1997-08-27 | 1999-11-09 | Nartron Corporation | In-line module for attenuating electrical noise with male and female blade terminals |
| CN207410309U (en) * | 2017-06-06 | 2018-05-25 | 成都奔月电子技术有限公司 | A kind of filtering unit |
| CN107528560A (en) * | 2017-09-29 | 2017-12-29 | 重庆大及电子科技有限公司 | A kind of laser orientation system filtering unit |
| CN208128205U (en) * | 2018-08-31 | 2018-11-20 | 重庆大及电子科技有限公司 | A kind of filtering unit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108712156A (en) | 2018-10-26 |
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