CN212543650U - Power supply filtering device - Google Patents
Power supply filtering device Download PDFInfo
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- CN212543650U CN212543650U CN202021234914.1U CN202021234914U CN212543650U CN 212543650 U CN212543650 U CN 212543650U CN 202021234914 U CN202021234914 U CN 202021234914U CN 212543650 U CN212543650 U CN 212543650U
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Abstract
The utility model provides a power filter device, which comprises a housin, the apron, the casing includes mutual isolation's thick electric power cavity and smart electric power cavity, be equipped with thick electric power filtering subassembly and smart electric power filtering subassembly in thick electric power cavity and the smart electric power cavity respectively, thick electric power filtering subassembly is used for filtering thick electric power, smart electric power filtering subassembly is used for filtering the smart electric power that obtains based on thick electric power transform, thick electric power filtering subassembly has connect thick electric input component and thick electric output component respectively, smart electric power filtering subassembly has connect smart electric input component and smart electric output component respectively. Through above-mentioned power filter, set up thick electric power cavity and smart electric power cavity and carry out the filtering to thick electric power and smart electric power respectively, realized that twice conversion of power can both carry out the integration of filtering at same filter equipment, saved installation procedure and cost, also improved holistic filtering efficiency.
Description
Technical Field
The utility model relates to an electronic equipment field especially relates to a power filter device.
Background
In the process of generating the power supply, the power supply meeting the use requirement is obtained through multiple times of conversion, and the power supply obtained through conversion at each time has corresponding interference signals, so that the interference can be discharged through connecting a power supply filtering device behind each power supply output, and the power supply obtained at each time can be ensured.
However, in the current scheme, more than one filtering device is used, which is not only troublesome to install but also higher in cost.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a power filter device.
In a first aspect, in an embodiment, the utility model provides a power filter device, which comprises a housin, the apron, the casing includes the thick electric power cavity and the smart electric power cavity of mutual isolation, be equipped with thick electric power filtering subassembly and smart electric power filtering subassembly in thick electric power cavity and the smart electric power cavity respectively, thick electric power filtering subassembly is used for filtering thick electric power, smart electric power filtering subassembly is used for filtering the smart electric power that obtains based on thick electric power transform, thick electric power filtering subassembly has connect thick electric input part and thick electric output part respectively, smart electric power filtering subassembly has connect smart electric input part and smart electric output part respectively.
In one embodiment, the coarse electrical input component, the coarse electrical output component, the fine electrical input component, and the fine electrical output component are a coarse electrical input lead, a coarse electrical output lead, a fine electrical input lead, and a fine electrical output lead, respectively.
In one embodiment, the bottom of the shell and the cover plate are provided with a plurality of outlet hole positions, and the coarse electric input lead, the coarse electric output lead, the fine electric input lead and the fine electric output lead are led out from the outlet hole positions.
In one embodiment, the coarse and fine electrical input leads exit from the same outlet aperture location.
In one embodiment, the fine power filter assembly is mainly composed of two common mode inductors, four grounding capacitors and three line-to-line capacitors.
In one embodiment, the coarse electrical power filter component consists essentially of a common mode inductor and a line-to-line capacitor.
In one embodiment, the housing further comprises a signal cavity isolated from the coarse power cavity and the fine power cavity, and the signal cavity is provided with a signal filtering component connected with the signal input lead and the signal output lead respectively.
In one embodiment, the signal filtering component consists essentially of a feedthrough filter.
Through above-mentioned power filter, set up thick electric power cavity and smart electric power cavity and carry out the filtering to thick electric power and smart electric power respectively, realized that twice conversion of power can both carry out the integration of filtering at same filter equipment, saved installation procedure and cost, also improved holistic filtering efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic diagram of an internal structure of a power filter device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 3 is a schematic bottom structure diagram of a power filter device according to an embodiment of the present invention;
fig. 4 is a front view and a side view of a power filter device according to an embodiment of the present invention.
In the above drawings: 1. a housing; 2. a cover plate; 31. a coarse power supply cavity; 32. a coarse power supply filtering component; 33. a coarse electrical input lead; 34. a coarse electrical output lead; 41. a fine power supply cavity; 42. a fine power supply filtering component; 43. a fine power input lead; 44. a fine power output lead; 51. a signal cavity; 52. a signal filtering component; 53. a signal input lead; 54. a signal output conductor; 6. and (6) wire outlet hole positions.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, in an embodiment, a power supply filtering device is provided, which includes a housing 1 and a cover plate 2, the housing 1 includes a coarse power supply cavity 31 and a fine power supply cavity 41 that are isolated from each other, a coarse power supply filtering component 32 and a fine power supply filtering component 42 are respectively disposed in the coarse power supply cavity 31 and the fine power supply cavity 41, the coarse power supply filtering component 32 is configured to filter a coarse power supply, the fine power supply filtering component 42 is configured to filter a fine power supply obtained based on coarse power supply conversion, the coarse power supply filtering component 32 is respectively connected to a coarse power input component and a coarse power output component, and the fine power supply filtering component 42 is respectively connected to a fine power input component and a fine power output component.
For example, a 48V power supply needs to be converted into a 12V power supply first, and then the 12V power supply is converted into a 5V power supply, where 48V and 12V can be respectively referred to as a coarse power supply and a fine power supply, and similarly, 12V and 5V can be respectively referred to as a coarse power supply and a fine power supply, and in many scenarios, the power supply conversion can be related to the situation, namely the situation that the power supply is small to a charger and the power supply is large to a power device, and the power supply obtained by each conversion is interfered to a certain extent, so that the filtering of the power supply obtained by each conversion is necessary. Since the coarse power supply is not the final required target power supply and further needs to be converted and filtered, most of the interference is only required to be eliminated, so that the coarse power supply filtering component 32 has a simple structure compared with the fine power supply filtering component 42. In addition, the interior of the shell 1 is divided into a coarse power supply cavity 31 and a fine power supply cavity 41 through metal partition plates, secondary coupling interference is avoided through cavity division processing, and a filtering effect is guaranteed.
Through above-mentioned power filter, set up thick electric power cavity and smart electric power cavity and carry out the filtering to thick electric power and smart electric power respectively, realized that twice conversion of power can both carry out the integration of filtering at same filter equipment, saved installation procedure and cost, also improved holistic filtering efficiency.
As shown in fig. 1 and 3, in one embodiment, the coarse electrical input component, the coarse electrical output component, the fine electrical input component, and the fine electrical output component are a coarse electrical input lead 33, a coarse electrical output lead 34, a fine electrical input lead 43, and a fine electrical output lead 44, respectively.
Wherein, directly adopting the wire output to be for long-time and stable connection input device, through the mode that the wire was drawn forth, can be so that with the direct integration of input device, secondly, consider that this power filter device need carry out the filtering to twice power, therefore the winding displacement can be more, if adopt assemblies such as connector, can increase the space, the structure is comparatively complicated.
As shown in fig. 1, 2 and 3, in one embodiment, the bottom of the housing 1 and the cover plate 2 are provided with a plurality of outlet holes 6, and the coarse electrical input lead 33, the coarse electrical output lead 34, the fine electrical input lead 43 and the fine electrical output lead 44 are led out from the outlet holes.
Wherein the coarse electrical input lead 33 and the fine electrical input lead 43 are led out from the same outlet hole site 6. The end part of each wire is provided with an identification number, and the connection relation of the wires can be clearly distinguished through the identification number; the thick electric input lead 33 and the fine electric input lead 43 are set to be led out from the same wire outlet hole position 6, on one hand, the wire outlet hole position 6 can be saved, the structural complexity is reduced, on the other hand, the convenience of connection with input equipment is considered, and the two input ends are concentrated together, so that the connection with the input equipment is more compact.
In one embodiment, the fine power filter assembly is mainly composed of two common mode inductors, four grounding capacitors and three line-to-line capacitors.
The filter assembly of the smart power supply is a filter assembly of the smart power supply, the filter assembly is generally directly connected with electric equipment after being output, and therefore the requirement on filtering is high, so that the three-level filter power supply is adopted, two-level common-mode inductors and four grounding capacitors are adopted to suppress common-mode interference, three line-to-line capacitors are adopted to suppress differential-mode interference, and in addition, two grounding feedthrough filters are additionally arranged for improving the high-frequency filtering effect.
In one embodiment, the coarse electrical power filter component consists essentially of a common mode inductor and a line-to-line capacitor.
The coarse power supply filtering component is a filtering component of a coarse power supply, power conversion is required after the filtering component outputs, then filtering is carried out, therefore, high-standard filtering is not required in the filtering, most of interference can be eliminated, cost can be reduced, and the coarse power supply filtering component is formed by adopting a primary common-mode inductor independently.
As shown in fig. 1, 2 and 3, in an embodiment, the housing 1 further includes a signal cavity 51 isolated from the coarse power cavity 31 and the fine power cavity 41, a signal filtering component 52 is disposed in the signal cavity 51, and the signal filtering component 52 is respectively connected to a signal input lead 53 and a signal output lead 54.
The signal input lead 53 and the signal output lead 54 are respectively led out through the outlet hole site 6 on the bottom of the shell 1 and the cover plate 2.
In one embodiment, the signal filtering component consists essentially of a feedthrough filter. Because the signal is generally high frequency, the filtering effect is better by adopting the feedthrough filter.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides a power filter device, a serial communication port, includes casing, apron, the casing includes mutual isolation's thick electric power cavity and smart electric power cavity, be equipped with thick electric power filtering subassembly and smart electric power filtering subassembly in thick electric power cavity and the smart electric power cavity respectively, thick electric power filtering subassembly is used for filtering thick electric power, smart electric power filtering subassembly is used for right based on the smart electric power that thick electric power transform obtained carries out the filtering, thick electric power filtering subassembly has connect thick electric input component and thick electric output part respectively, smart electric power filtering subassembly has connect smart electric input component and smart electric output part respectively.
2. The power filtering device of claim 1, wherein the coarse electrical input, output, input and output components are a coarse electrical input lead, a coarse electrical output lead, a fine electrical input lead and a fine electrical output lead, respectively.
3. The power filter device of claim 2, wherein the bottom of the housing and the cover plate are both provided with a plurality of outlet holes, and the coarse electrical input lead, the coarse electrical output lead, the fine electrical input lead and the fine electrical output lead are led out from the outlet holes.
4. The power filter arrangement of claim 3, wherein said coarse and fine electrical input leads are routed from the same said outlet aperture site.
5. The power filtering device of claim 1, wherein the fine power filtering component is mainly composed of two common mode inductors, four grounding capacitors and three line-to-line capacitors.
6. The power filter arrangement of claim 1, wherein said coarse power filter component consists essentially of a common mode inductor and a line-to-line capacitor.
7. The power supply filtering device according to claim 1, wherein the housing further comprises a signal cavity isolated from the coarse power supply cavity and the fine power supply cavity, and a signal filtering component is disposed in the signal cavity and connected to the signal input lead and the signal output lead respectively.
8. The power filtering device of claim 7, wherein the signal filtering component consists essentially of a feedthrough filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021234914.1U CN212543650U (en) | 2020-06-29 | 2020-06-29 | Power supply filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021234914.1U CN212543650U (en) | 2020-06-29 | 2020-06-29 | Power supply filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212543650U true CN212543650U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021234914.1U Active CN212543650U (en) | 2020-06-29 | 2020-06-29 | Power supply filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212543650U (en) |
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2020
- 2020-06-29 CN CN202021234914.1U patent/CN212543650U/en active Active
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