CN209881639U - Combined filter with reverse connection preventing, lightning stroke preventing and surge preventing functions - Google Patents
Combined filter with reverse connection preventing, lightning stroke preventing and surge preventing functions Download PDFInfo
- Publication number
- CN209881639U CN209881639U CN201920956913.9U CN201920956913U CN209881639U CN 209881639 U CN209881639 U CN 209881639U CN 201920956913 U CN201920956913 U CN 201920956913U CN 209881639 U CN209881639 U CN 209881639U
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- filter
- boss
- circuit board
- filter body
- surge
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Abstract
The utility model discloses a have concurrently and prevent joining conversely, lightning protection, the combined filter of anti-surge function, the mount pad is equipped with upper end open-ended inner chamber, main circuit board installs in the outer bottom of mount pad, prevent joining conversely circuit component, prevent lightning circuit component and prevent that surge circuit component installs respectively below main circuit board, the inner chamber bottom of mount pad is equipped with a plurality of through-holes, the boss that is equipped with central through-hole is installed in the middle part of mount pad, the filter connector is installed on the boss and corresponds with main circuit board after its lower extreme row of inserting passes the central through-hole on boss and the mount pad and is connected, the both sides of boss are all arranged in and are arranged in respectively in the inner chamber of mount pad to first filter body and second filter body. Combination filter has concurrently when having filtering function and prevents joining conversely, lightning protection, anti-surge function, has improved product reliability, and two filter bodies have better electromagnetic shield effect in being in a shielding chamber separately moreover, can satisfy high requirement application needs.
Description
Technical Field
The utility model relates to a wave filter especially relates to a have concurrently and prevent reverse connection, lightning protection, prevent the combined filter of surge function.
Background
The filter is used for effectively filtering a frequency point of a specific frequency in the power line or frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.
The traditional filter can only play a role of circuit filtering generally, and a filter shell is of a regular cavity structure, so that other circuit functions are difficult to increase in a circuit, and mutual electromagnetic interference is easy to cause. In an application environment with higher requirements, the filter may have the problems of being damaged by lightning strike and surge, and the like, so that an additional independent device is required to be added to protect the filter, the product volume is increased, and signal anti-interference shielding is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is just to provide a have concurrently and prevent joining conversely, lightning protection, prevent the combined filter of surge function in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a combined filter with reverse connection prevention, lightning protection and surge protection functions comprises a mounting seat, a filter body and a main circuit board, and further comprises a boss, a filter connector, a reverse connection prevention circuit element, a lightning protection circuit element and a surge protection circuit element, wherein the mounting seat is provided with an inner cavity with an upper end open, the main circuit board is arranged at the outer bottom of the mounting seat, the reverse connection prevention circuit element, the lightning protection circuit element and the surge protection circuit element are respectively arranged below the main circuit board, the inner cavity bottom of the mounting seat is provided with a plurality of through holes, the boss with a central through hole is arranged at the middle part of the mounting seat, the filter connector is arranged on the boss, the lower end of the filter connector is correspondingly connected with the main circuit board after being inserted and arranged through the central through hole of the boss and the central through hole on the mounting seat, the filter body comprises a first filter body and a second filter body, the first filter body and the second filter body are arranged in the inner cavity of the mounting seat and are respectively arranged on two sides of the boss. Above-mentioned wave filter body, main circuit board, wave filter connector, prevent reverse connection circuit component, lightning protection circuit component and prevent surge circuit component and the connection structure between each device all are the conventional electronic device and the connection structure in wave filter field, are prior art, the utility model discloses a key is that realize multiple functions and can have good shielding performance and jam-proof performance with each parts organic integration together.
Preferably, in order to achieve a better shielding effect, the mounting seat is a metal seat, the boss is a metal table, and the top of the boss is not lower than the top of the first filter body and the top of the second filter body.
Further, in order to achieve a better shielding effect, the first filter body includes a first filter circuit board, a first cover plate, and a first insulating plug interposed between the first filter circuit board and the first cover plate; the second filter body comprises a second filter circuit board, a second cover plate and a second insulating plug, and the second insulating plug is arranged between the second filter circuit board and the second cover plate.
The beneficial effects of the utility model reside in that:
the utility model discloses a with two filter bodies, main circuit board and filter connector install the different positions on the mount pad that has the inner chamber, and will prevent reverse-connection circuit element, prevent lightning circuit element and prevent that surge circuit element installs on main circuit board, not only make this combined filter have concurrently when having filtering function and prevent reverse-connection, prevent lightning, prevent the surge function, the product reliability has been improved, and two filter bodies have better electromagnetic shield effect in being in a shielding chamber separately, can not cause mutual electromagnetic interference, thereby can be more high-efficient, accurately realize filtering function, can satisfy high-demand application needs.
Drawings
Fig. 1 is one of the three-dimensional structural diagrams of the combined filter with anti-reverse connection, lightning protection and surge protection functions of the present invention before assembly, which is a top view;
FIG. 2 is a second three-dimensional structure diagram of the combined filter with anti-reverse connection, lightning protection and surge protection functions of the present invention before assembly, which is shown in a bottom view;
FIG. 3 is one of the assembled three-dimensional structures of the combined filter with anti-reverse connection, lightning protection and surge protection functions of the present invention, which is shown in a top view;
fig. 4 is a second three-dimensional structure diagram of the assembled combined filter with anti-reverse connection, lightning protection and surge protection functions of the present invention, which is shown in a bottom view.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in FIGS. 1-4, the combined filter with anti-reverse connection, lightning protection and surge protection functions comprises a metal mounting base 5, a first filter body 3, a second filter body 4, a main circuit board 6, a metal boss 2, a filter connector 1, an anti-reverse connection circuit element 7, a lightning protection circuit element 10 and a surge protection circuit element 8, wherein the metal mounting base 5 is provided with an inner cavity with an upper end open, the main circuit board 6 is arranged at the outer bottom of the metal mounting base 5, the anti-reverse connection circuit element 7, the lightning protection circuit element 10 and the surge protection circuit element 8 are respectively arranged below the main circuit board 6, the inner cavity bottom of the metal mounting base 5 is provided with a plurality of through holes, the metal boss 2 provided with a central through hole is arranged at the middle part of the metal mounting base 5, the filter connector 1 is arranged on the metal boss 2, and the lower end of the filter connector passes through the central through hole of the metal boss 2 and the central through hole on the metal mounting base 5 and then corresponds to the main The first filter body 3 and the second filter body 4 are both arranged in the inner cavity of the metal mounting base 5 and are respectively arranged on two sides of the metal boss 2, and the top of the metal boss 2 is not lower than the tops of the first filter body 3 and the second filter body 4; the first filter body 3 includes a first filter circuit board 33, a first cover plate 32, and a plurality of first insulating plugs 31, the plurality of first insulating plugs 31 being interposed between the first filter circuit board 33 and the first cover plate 31, the first cover plate 32 being located above the first filter circuit board 33; the second filter body 4 includes a second filter circuit board 43, a second cover plate 42, and a plurality of second insulating plugs 41, the plurality of second insulating plugs 41 being interposed between the second filter circuit board 43 and the second cover plate 42, the second cover plate 42 being located above the second filter circuit board 43.
Also shown in fig. 1 and 2 are screws 9 for mounting the components.
As shown in fig. 3, after assembly, the first filter body 3 and the second filter body 4 are respectively placed in two metal inner cavities, and the middle metal boss 2 has a good isolation effect, so that a better electromagnetic shielding effect is achieved, and electromagnetic interference between the first filter body and the second filter body is avoided; as shown in fig. 4, the main circuit board 6, the reverse connection preventing circuit element 7, the lightning protection circuit element 10, and the surge protection circuit element 8 are all located at the outer bottom of the metal mounting base 6, so that the installation is facilitated, and the filter has a proper spacing distance from the first filter body 3 and the second filter body 4, and the functional modules do not affect each other, thereby having better stability.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (3)
1. The utility model provides a have concurrently and prevent reverse connection, lightning protection, prevent combination filter of surge function, includes mount pad, filter body and main circuit board, its characterized in that: also comprises a boss, a filter connector, an anti-reverse connection circuit element, a lightning protection circuit element and a surge protection circuit element, the mounting seat is provided with an inner cavity with an opening at the upper end, the main circuit board is arranged at the outer bottom of the mounting seat, the reverse connection preventing circuit element, the lightning protection circuit element and the surge protection circuit element are respectively arranged below the main circuit board, the bottom of the inner cavity of the mounting seat is provided with a plurality of through holes, the boss with a central through hole is arranged in the middle of the mounting seat, the filter connector is arranged on the boss, the lower end socket of the filter connector penetrates through the central through hole of the boss and the central through hole on the mounting seat and then is correspondingly connected with the main circuit board, the filter body comprises a first filter body and a second filter body, and the first filter body and the second filter body are arranged in the inner cavity of the mounting seat and are respectively arranged on two sides of the boss.
2. The combined filter with functions of reverse connection prevention, lightning protection and surge protection according to claim 1, wherein: the mounting seat is a metal seat, the boss is a metal table, and the top of the boss is not lower than the tops of the first filter body and the second filter body.
3. The combined filter with functions of reverse connection prevention, lightning protection and surge protection according to claim 1, wherein: the first filter body comprises a first filter circuit board, a first cover plate and a first insulating plug, wherein the first insulating plug is arranged between the first filter circuit board and the first cover plate; the second filter body comprises a second filter circuit board, a second cover plate and a second insulating plug, and the second insulating plug is arranged between the second filter circuit board and the second cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956913.9U CN209881639U (en) | 2019-06-25 | 2019-06-25 | Combined filter with reverse connection preventing, lightning stroke preventing and surge preventing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956913.9U CN209881639U (en) | 2019-06-25 | 2019-06-25 | Combined filter with reverse connection preventing, lightning stroke preventing and surge preventing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209881639U true CN209881639U (en) | 2019-12-31 |
Family
ID=68946999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920956913.9U Active CN209881639U (en) | 2019-06-25 | 2019-06-25 | Combined filter with reverse connection preventing, lightning stroke preventing and surge preventing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209881639U (en) |
-
2019
- 2019-06-25 CN CN201920956913.9U patent/CN209881639U/en active Active
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