CN221042663U - Filter and power supply system - Google Patents
Filter and power supply system Download PDFInfo
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- CN221042663U CN221042663U CN202322775927.XU CN202322775927U CN221042663U CN 221042663 U CN221042663 U CN 221042663U CN 202322775927 U CN202322775927 U CN 202322775927U CN 221042663 U CN221042663 U CN 221042663U
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- 230000007935 neutral effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A filter and a power supply system. The filter includes: a housing having a plurality of end faces; a filter circuit located within the housing; the input terminal is positioned on one end face of the shell, connected with the filter circuit and used for accessing input signals; and more than two groups of output terminals are positioned on at least one end face of the shell, are connected with the filter circuit and are used for outputting the filtered input signals to more than two circuits simultaneously. By adopting the scheme, the space requirement of the filter when the same input is simultaneously output to more than two lines can be reduced.
Description
Technical Field
The utility model relates to the technical field of electronic equipment, in particular to a filter and a power supply system.
Background
In a power supply system, a filter is an important electronic component. The filter can transmit the power of the power grid to the electric equipment without attenuation, and filter electromagnetic interference (Electromagnetic Interference, EMI) signals transmitted by the power grid to protect the electric equipment from being damaged. Meanwhile, the filter can effectively control the EMI signal generated by the electric equipment, prevent the EMI signal from entering the power grid, pollute the electromagnetic environment and harm other equipment.
The existing filters basically adopt the traditional single-input single-output filter. If the same input needs to be output to two or more circuits at the same time, a plurality of filters are required to be installed to meet the transmission requirement of the electric circuit, so that the internal space of the cabinet is tense, the external dimension of the cabinet is even required to be larger, the installation space requirement of all devices in the cabinet can be met, and the cost is higher.
Disclosure of utility model
The utility model aims to solve the problems that: the space requirement of the filter when the same input is simultaneously output to more than two lines is reduced.
To solve the above problems, an embodiment of the present utility model provides a filter including:
A housing having a plurality of end faces;
A filter circuit located within the housing;
The input terminal is positioned on one end face of the shell, connected with the filter circuit and used for accessing input signals;
And more than two groups of output terminals are positioned on at least one end face of the shell, are connected with the filter circuit and are used for outputting the filtered input signals to more than two circuits simultaneously.
Optionally, each set of output terminals includes: the live wire output terminal is connected with the live wire input terminal in the input terminal through the filter circuit, and the zero wire output terminal is connected with the zero wire input terminal in the input terminal through the filter circuit.
Optionally, at least one of the two or more sets of output terminals is located on a top end face of the housing.
Optionally, the output terminal located on the top end surface of the housing is a rectangular hub connector.
Optionally, one of the two or more sets of output terminals is located on a side end face of the housing.
Optionally, the output terminal located on the side end face of the housing is a tab connector.
Optionally, the input terminal is located on a top end face of the housing.
Optionally, the top end face of the housing includes: the first top end surface area, the second top end surface area and the third top end surface area which are sequentially connected, wherein the distance from the second top end surface area to the bottom end surface of the shell is greater than the distance from the first top end surface area to the bottom end surface of the shell, and the distance from the second top end surface area to the bottom end surface of the shell is greater than the distance from the third top end surface area to the bottom end surface of the shell.
Optionally, the input terminal is located in a first top end face region of the housing, and at least one of the two or more sets of output terminals is located in a third top end face region of the housing.
The implementation of the utility model also provides a power supply system, which comprises any one of the filters.
Compared with the prior art, the technical scheme of the embodiment of the utility model has the following advantages:
by applying the scheme of the utility model, the same filter comprises more than two groups of output terminals, so that the filter has a plurality of outputs, filtered input signals can be simultaneously output to more than two circuits without increasing the number of the filters, the space requirement is reduced, the internal space tension of a cabinet can be effectively relieved, the total weight of the cabinet is reduced, and the cost is lower.
Drawings
Fig. 1 is a schematic perspective view of a conventional single-input single-output filter;
FIG. 2 is a left side view of the filter of FIG. 1;
FIG. 3 is a right side view of the filter of FIG. 1;
FIG. 4 is a side view of the filter of FIG. 1;
FIG. 5 is a top view of the filter of FIG. 1;
FIG. 6 is a schematic circuit diagram of the filter circuit in the filter of FIG. 1;
FIG. 7 is a schematic diagram of a three-dimensional structure of a filter according to an embodiment of the utility model;
FIG. 8 is a schematic diagram of a three-dimensional structure of a filter according to another embodiment of the present utility model;
FIG. 9 is a left side view of the filter of FIG. 8;
FIG. 10 is a side view of the filter of FIG. 8;
FIG. 11 is a right side view of the filter of FIG. 8;
FIG. 12 is a top view of the filter of FIG. 8;
Fig. 13 is a schematic circuit diagram of the filter circuit in the filter of fig. 7.
Detailed Description
Fig. 1 is a schematic perspective view of a conventional single-input single-output filter. Fig. 2 is a left side view of the filter of fig. 1, fig. 3 is a right side view of the filter of fig. 1, fig. 4 is a side view of the filter of fig. 1, and fig. 5 is a top view of the filter of fig. 1.
Referring to fig. 1 to 5, the filter may include: a housing 10, an input terminal 11 located at a first side end face of the housing 10, and a set of output terminals 12 located at a second side end face of the housing 10. Wherein, a filter circuit is arranged in the shell 10, and an input terminal 11 is connected with the filter circuit and is used for accessing an input signal. The output terminal 12 and the filter circuit are used for outputting the filtered input signal into an electric circuit.
The input terminal 11 and the output terminal 12 are tab-type connection terminals. The input terminals 11 may include a live input terminal 111, a neutral input terminal 112, and a ground terminal 113. The live wire input terminal 111 is used for connecting the live wire of the electric network, the neutral wire input terminal 112 is used for connecting the neutral wire of the electric network, and the ground wire terminal 113 is used for grounding. The output terminal 12 includes: the live wire output terminal 121 and the zero line output terminal 122, live wire output terminal 121 is connected with the live wire of electric wire netting through filter circuit, and zero line output terminal 122 is connected with the zero line of electric wire netting through filter circuit.
Fig. 6 is a schematic circuit diagram of the filter circuit in the filter of fig. 1. Referring to fig. 6, the filter circuit may include: a first filter unit 21 consisting of a capacitor and a resistor, a second filter unit 22 consisting of a common-mode coil, and a third filter unit 23 consisting of a capacitor bank. Wherein the first filtering unit 21 may filter the differential mode signal, the second filtering unit 22 may suppress the interference of the high frequency common mode signal to the power supply, and the third filtering unit 23 may turn on the high frequency common mode signal to the ground terminal 113.
By adopting the filter, if the same input needs to be output to two or more circuits at the same time, a plurality of filters are required to be installed, so that the transmission requirement of the electric circuit can be met, the internal space of the cabinet is compact, the external dimension of the cabinet is even required, the installation space requirement of all devices in the cabinet can be met, and the cost is higher.
In order to solve the problem, the utility model provides a filter which comprises more than two groups of output terminals, so that the filter has a plurality of outputs, filtered input signals can be simultaneously output to more than two lines without increasing the number of the filters, the space requirement is reduced, the internal space tension of a cabinet can be effectively relieved, the total weight of the cabinet is reduced, and the cost is lower.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The embodiment of the utility model provides a filter, which comprises:
A housing having a plurality of end faces;
A filter circuit located within the housing;
The input terminal is positioned on one end face of the shell, connected with the filter circuit and used for accessing input signals;
And more than two groups of output terminals are positioned on at least one end face of the shell, are connected with the filter circuit and are used for outputting the filtered input signals to more than two circuits simultaneously.
Through setting up more than two sets of output terminals, can make this wave filter can be with same input signal output to more than two lines to reduce the space requirement of wave filter, and can effectively alleviate rack inner space tension, reduce the rack total weight, the cost is also lower.
In an implementation, a set of output terminals corresponds to only one line. Specifically, the group of output terminals can output the filtered input signals to a circuit, so that power can be supplied to electric equipment. When more than two groups of output terminals are arranged, the filtered input signals can be simultaneously output to more than two lines.
The line connected to the output terminal of the filter may be a line for supplying single-phase power to the electric device. The electric equipment using single-phase electricity can be lighting equipment, camera monitoring equipment, a single-phase charging interface and the like.
Fig. 7 is a schematic diagram of a filter according to an embodiment of the utility model. Fig. 8 is a schematic diagram of a filter according to another embodiment of the present utility model.
In an embodiment of the present utility model, the filter may be provided with two sets of output terminals, so that the filtered input signal may be simultaneously output to two lines.
Specifically, referring to fig. 7, the filter may include: a housing 71, a filter circuit within the housing 71, an input terminal 72, and two sets of output terminals. The two sets of output terminals are a first set of output terminals 731 and a second set of output terminals 732, respectively.
The input signal received by the input terminal 72 may be filtered by the filter circuit via the first set of output terminals 731 and output to a circuit, for example, a circuit for supplying power to the lighting device. Through the second set of output terminals 732, the input signal received by the input terminal 72 may be filtered by the filter circuit and output to another line, for example, a line for supplying power to the image capturing monitoring apparatus.
In another embodiment of the present utility model, the filter may be provided with three sets of output terminals so that the filtered input signal may be simultaneously output to three lines.
Specifically, referring to fig. 8, the filter may include: a housing 81, a filter circuit within the housing 81, an input terminal 82, and three sets of output terminals. The three groups of output terminals are respectively: a first set of output terminals 831, a second set of output terminals 832, and a third set of output terminals 833.
The input signal received by the input terminal 82 may be filtered by the filter circuit via the first set of output terminals 831 and output to a circuit, for example, a circuit for supplying power to the lighting device. Through the second set of output terminals 832, the input signal received by the input terminal 82 may be filtered by the filter circuit and output to another line, for example, a line for supplying power to the image capturing monitoring apparatus. Through the third set of output terminals 833, the input signal received by the input terminal 82 is filtered by the filter circuit and then output to another line, for example, a line for supplying power to the single-phase charging interface.
In other embodiments, the filter may also be provided with four or more sets of output terminals, which are not listed here.
In a specific implementation, the housing of the filter may be of metal so that the entire housing can communicate with ground. The filter circuit may be located within the housing and fixed. The housing may have a plurality of end surfaces. The more than two groups of output terminals are positioned on at least one end face of the shell.
Fig. 9 is a left side view of the filter of fig. 8. Fig. 10 is a side view of the filter of fig. 8. Fig. 11 is a right side view of the filter of fig. 8. Fig. 12 is a top view of the filter of fig. 8.
Referring to fig. 8 to 12, the case 81 may include: a top end surface 811, a bottom end surface 812 opposed to the top end surface, and first and second side end surfaces 813 and 814 perpendicular to the bottom end surface. The first side end face 813 is opposite the second side end face 814.
In one embodiment, the filter circuit may be disposed within the housing 81 proximate the top face 811 and secured by epoxy casting.
In a specific implementation, each set of output terminals includes: the live wire output terminal is connected with the live wire input terminal in the input terminal through the filter circuit, and the zero wire output terminal is connected with the zero wire input terminal in the input terminal through the filter circuit.
In a specific implementation, one set of the two or more sets of output terminals is located on a side end face of the housing. Specifically, referring to fig. 8 to 12, the first group output terminals 831 may be located on the second side end surface.
In a specific implementation, the output terminal located on the second side end surface of the housing may be a tab connector. Each tab connector may include an insulating base and two output terminals of copper, a live output terminal and a neutral output terminal, respectively, for example, referring to fig. 11, the first set of output terminals 831 may include a live output terminal 831a and a neutral output terminal 831b. The live wire output terminal 831a and the neutral wire output terminal 831b may be distributed in a direction parallel to the bottom end face to adapt the line to be output.
In practical applications, if a group of output terminals is added to the second side end face, epoxy leakage is easily caused.
For this purpose, in an embodiment of the present utility model, at least one set of output terminals, except the output terminals located on the side end faces, among the two or more sets of output terminals may be located on the top end face of the housing. Specifically, referring to fig. 7, the second set of output terminals 732 may be located on the top end face 711 of the housing 71. Referring to fig. 8, the second group 832 and the third group 833 are located on the top surface 811 of the housing 81 and are arranged along the longitudinal direction of the housing 81.
In a specific implementation, in order to reduce the occupied space of the filter, an output terminal positioned on the top end surface of the shell can be provided as a rectangular needle seat connector. Specifically, referring to fig. 12, taking the second group of output terminals 832 as an example, the second group of output terminals 832 may include a rectangular needle holder, each rectangular needle holder includes a live wire output slot and a neutral wire output slot, the live wire output slot is provided with a needle-shaped live wire output terminal, and the neutral wire output slot is provided with a needle-shaped neutral wire output terminal.
In other embodiments, other structural designs of the output terminals on the top end face of the housing are possible. And, the multiple groups of output terminals on the top end surface of the shell can also be arranged in other directions.
In an embodiment of the present utility model, the structure of the top end surface of the housing may be optimized in order to further reduce the space occupied by the filter. Specifically, referring to fig. 8, a tip end surface 811 of the housing 81 may be provided to include: the distance from the second distal end surface region 811b to the bottom surface 812 of the housing is greater than the distance from the first distal end surface region 811a to the bottom surface 812 of the housing, and the distance from the third distal end surface region 811c to the bottom surface 812 of the housing are greater than the first distal end surface region 811a, the second distal end surface region 811b, and the third distal end surface region 811c, which are sequentially connected. At this time, the top end surface 811 of the housing 81 is higher at the middle and lower at the two ends than the housing bottom end surface 812.
When the output terminal is provided at the top end face of the housing, the output terminal may be provided in the third top end face region 811c of the top end face such that the output terminal is at the highest level with or lower than the plane in which the second top end face region 811b is located. The filter circuit is provided at a position corresponding to the second top surface region 811b in the case, so that the output terminal can be provided in the third top surface region 811c without affecting the original filter circuit position, and the space occupied by the filter can be reduced as much as possible.
In an embodiment of the present utility model, in order to further reduce the occupied space of the filter, referring to fig. 12, the input terminal may be disposed on the first top end surface area 811a of the housing, so that the remaining space of the top end of the filter may be utilized, and the occupied space of the side surface of the filter may be reduced, thereby reducing the entire occupied space of the filter.
Fig. 13 is a schematic circuit diagram of the filter circuit in the filter of fig. 7. Referring to fig. 13, the input terminal 72 may include: a live input terminal 721, a neutral input terminal 722, and a ground terminal 723. The filter circuit may also include: a first filter unit 741 composed of a capacitor and a resistor, a second filter unit 742 composed of a common-mode coil, and a third filter unit 743 composed of a capacitor bank. Among them, the first filtering unit 741 may filter the differential mode signal, the second filtering unit 742 may suppress interference of the high frequency common mode signal to the power supply, and the third filtering unit 743 may turn on the high frequency common mode signal to the ground terminal 723.
Two sets of output terminals are provided on the output side of the filter circuit, wherein one end of the filter circuit for outputting the live wire current of the power grid can be used as a first live wire output terminal 731a and a second live wire output terminal 732a. One end of the filter circuit for outputting the grid neutral current may be used as the first neutral output terminal 731b and the second neutral output terminal 732b. The first live wire output terminal 731a is integrated with the first neutral wire output terminal 731b as a first group of output terminals. The second live wire output terminal 732a and the second neutral wire output terminal 732b are integrated to serve as a second group of output terminals.
In practical application, in order to ensure that each group of output terminals can output current with the same size as that of the traditional single-input single-output filter, the diameter of the coil in the common-mode coil can be multiplied, so that the current-carrying capacity of the common-mode coil is improved. For example, when the filter is provided with two sets of output terminals, the diameter of the coil in the common-mode coil should be twice the diameter of the coil in a common-mode coil in a conventional single-input single-output filter. When the filter is provided with three sets of output terminals, the diameter of the coil in the common-mode coil should be three times the diameter of the coil in a common-mode coil in a conventional single-input single-output filter.
The embodiment of the utility model also provides a power supply system which can comprise the filter in any embodiment.
Specifically, the input terminal of the filter can be connected with a power grid, the output terminal can be connected with different electric equipment, so that the input and output of the power grid can be connected to different electric equipment, the number of the filters is not required to be increased, the space requirement of the filters is reduced, the shortage of space in the cabinet can be effectively relieved, the total weight of the cabinet is reduced, and the cost is lower.
Although the present utility model is disclosed above, the present utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model should be assessed accordingly to that of the appended claims.
Claims (10)
1. A filter, comprising:
A housing having a plurality of end faces;
A filter circuit located within the housing;
The input terminal is positioned on one end face of the shell, connected with the filter circuit and used for accessing input signals;
And more than two groups of output terminals are positioned on at least one end face of the shell, are connected with the filter circuit and are used for outputting the filtered input signals to more than two circuits simultaneously.
2. The filter of claim 1, wherein each set of output terminals comprises: the live wire output terminal is connected with the live wire input terminal in the input terminal through the filter circuit, and the zero wire output terminal is connected with the zero wire input terminal in the input terminal through the filter circuit.
3. The filter of claim 1, wherein at least one of the two or more sets of output terminals is located on a top face of the housing.
4. A filter as claimed in claim 3, wherein the output terminal on the top face of the housing is a rectangular hub connector.
5. The filter of claim 1, wherein one of the two or more sets of output terminals is located on a side end face of the housing.
6. The filter of claim 5, wherein the output terminals on the housing side end face are tab connectors.
7. The filter of claim 1, wherein the input terminal is located on a top end face of the housing.
8. The filter of claim 1, wherein the top end face of the housing comprises: the first top end surface area, the second top end surface area and the third top end surface area which are sequentially connected, wherein the distance from the second top end surface area to the bottom end surface of the shell is greater than the distance from the first top end surface area to the bottom end surface of the shell, and the distance from the second top end surface area to the bottom end surface of the shell is greater than the distance from the third top end surface area to the bottom end surface of the shell.
9. The filter of claim 8, wherein the input terminal is located in a first top end face region of the housing and at least one of the two or more sets of output terminals is located in a third top end face region of the housing.
10. A power supply system comprising a filter according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322775927.XU CN221042663U (en) | 2023-10-16 | 2023-10-16 | Filter and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322775927.XU CN221042663U (en) | 2023-10-16 | 2023-10-16 | Filter and power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042663U true CN221042663U (en) | 2024-05-28 |
Family
ID=91190042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322775927.XU Active CN221042663U (en) | 2023-10-16 | 2023-10-16 | Filter and power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042663U (en) |
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2023
- 2023-10-16 CN CN202322775927.XU patent/CN221042663U/en active Active
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