CN221174843U - Wiring filter testing device - Google Patents
Wiring filter testing device Download PDFInfo
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- CN221174843U CN221174843U CN202323179812.0U CN202323179812U CN221174843U CN 221174843 U CN221174843 U CN 221174843U CN 202323179812 U CN202323179812 U CN 202323179812U CN 221174843 U CN221174843 U CN 221174843U
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- radio frequency
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- filter
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 241000270722 Crocodylidae Species 0.000 claims description 7
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 241000270728 Alligator Species 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The application relates to a wiring filter testing device, which relates to the technical field of measuring devices, and comprises a detecting instrument; the shell is provided with an upper opening, and the inner bottom surface is provided with a positioning column for plugging the wiring filter; the SMA radio frequency head is connected to the shell, and two are a group; the signal wire is provided with two signal wires, one signal wire is connected with the input ends of the SMA radio frequency head and the wiring filter, and the other signal wire is connected with the output ends of the SMA radio frequency head and the wiring filter; the shielding wire is provided with two shielding wires, one shielding wire is connected with the input ends of the SMA radio frequency head and the detecting instrument, the other shielding wire is connected with the output ends of the SMA radio frequency head and the detecting instrument, and the signal input and the signal output correspond to the signal wire. The application has the effect of enabling the connection of the test wire and the wiring filter to be more reliable.
Description
Technical Field
The application relates to the technical field of measuring devices, in particular to a wiring filter testing device.
Background
The wiring filter is an electronic component, which consists of an inductor and a capacitor, and can effectively filter the frequency point of a specific frequency or the frequency outside the frequency point in the power line to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency. The filter filters the waves and typically has at least one set of ports, an input signal, and an output signal. The filter is an important electronic component, which transmits power of a power supply to equipment, greatly attenuates electromagnetic interference (EMI) signals transmitted by the power supply and protects the equipment from damage; meanwhile, the EMI signal generated by the equipment can be effectively controlled, and the equipment is prevented from entering a power grid to pollute the electromagnetic environment and harm other equipment.
When the junction filter is tested, two test wires are required to be matched with a test instrument to test, the test wires are radio frequency clamp wires, the clamp ends are required to be refitted into two, the test method is that one clamp end of each of the two radio frequency clamp wires is used for clamping one group of signal wires of the junction filter, the other clamp end is used for clamping a shell of the junction filter, and the other ends of the two radio frequency clamp wires are connected to the instrument through BNC adapters to perform performance test. However, the wiring filter cannot be fixed in this method, and the connection with the test line is unreliable.
Disclosure of utility model
In order to ensure that the test wire is connected with the wiring filter more reliably, the application provides a wiring filter testing device.
The application provides a wiring filter testing device which adopts the following technical scheme:
A wiring filter testing device comprising:
a detection instrument;
The shell is provided with an upper opening, and the inner bottom surface is provided with a positioning column for plugging the wiring filter;
The SMA radio frequency head is connected to the shell, and two are a group;
The signal wire is provided with two signal wires, one signal wire is connected with the input ends of the SMA radio frequency head and the wiring filter, and the other signal wire is connected with the output ends of the SMA radio frequency head and the wiring filter;
the shielding wire is provided with two shielding wires, one shielding wire is connected with the input ends of the SMA radio frequency head and the detecting instrument, the other shielding wire is connected with the output ends of the SMA radio frequency head and the detecting instrument, and the signal input and the signal output correspond to the signal wire.
Through adopting above-mentioned technical scheme, wiring filter can insert and establish on the reference column, puts into the casing, makes wiring filter be difficult for rocking when testing, is convenient for the wiring, and signal line and shielded wire are difficult for not hard up after the wiring simultaneously, have improved the wiring reliability of signal line and shielded wire, make the test more accurate.
Optionally, the SMA radio frequency heads are provided with a plurality of groups, and each group of SMA radio frequency heads are opposite.
By adopting the technical scheme, one group of SMA radio frequency heads are mainly used, the other groups of SMA radio frequency heads are used as spare, and when the mainly used SMA radio frequency heads fail, the spare SMA radio frequency heads can be directly started, so that the use reliability of the testing device is improved.
Optionally, one end of the signal wire is welded on the SMA radio frequency head, and the other end is provided with an alligator clip clamped at the input end or the output end of the wiring filter.
Through adopting above-mentioned technical scheme, signal line adopts welded mode with SMA radio frequency head, can improve the reliability of connection, and the signal line other end sets up the crocodile clamp, can be convenient for operating personnel quick replacement to the wiring of the different wiring ends of wiring filter, improves the efficiency of test operation.
Optionally, be equipped with the installation component between SMA radio frequency head and the casing, the installation component includes:
the screw penetrates through the SMA radio frequency head and the side wall of the shell;
The gasket is sleeved on the screw and is abutted with the inner side wall of the shell;
and the nut is in threaded connection with the screw.
Through adopting above-mentioned technical scheme, nut and screw can be in the same place SMA radio frequency head and casing zonulae occludens, and the nut can be screwed by the operating personnel of being convenient for to the gasket.
Optionally, the mounting assembly further comprises a resilient washer disposed between the washer and the nut.
By adopting the technical scheme, when the nut is screwed, the elastic washer is extruded, and the elastic washer generates reaction force to the nut to lock the nut on the screw.
Optionally, a positioning slot for accommodating the wiring filter is arranged on the inner bottom surface of the shell.
Through adopting above-mentioned technical scheme, the constant head tank can play the positioning action to wiring filter, makes wiring filter in casing internal connection more firm.
Optionally, a conductive layer is disposed in the positioning groove.
Through adopting above-mentioned technical scheme, compare in traditional test, when using this testing arrangement to test, the shell of wiring filter passes through conducting layer large tracts of land contact with the casing to realize good ground connection, especially it is especially showing to high frequency test effect, and the test result degree of accuracy is higher.
Optionally, a plurality of mounting holes are formed in the shell.
Through adopting above-mentioned technical scheme, can use the mounting hole to fix the casing on operation platform, make the casing be difficult for rocking, improve wiring filter's installation stability.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The wiring filter can be inserted on the positioning column and placed in the shell, so that the wiring filter is not easy to shake when in test, wiring is convenient, and meanwhile, after wiring, the signal wire and the shielding wire are not easy to loosen, so that the wiring reliability of the signal wire and the shielding wire is improved, and the test is more accurate;
2. One group of SMA radio frequency heads is mainly used, the other groups of SMA radio frequency heads are used as spare, and when the mainly used SMA radio frequency heads fail, the spare SMA radio frequency heads can be directly started, so that the use reliability of the testing device is improved;
3. The signal wire adopts welded mode with SMA radio frequency head, can improve the reliability of connection, and the signal wire other end sets up the crocodile clamp, can be convenient for operating personnel quick replacement to the wiring of the different wiring terminals of wiring wave filter, improves the efficiency of test operation.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of the connection structure of a housing and a patch filter according to an embodiment of the present application;
FIG. 3 is an enlarged schematic view of a portion A of FIG. 1;
In the figure, 100, a wiring filter; 1. a detection instrument; 2. a housing; 21. positioning columns; 22. a positioning groove; 23. a conductive layer; 24. a mounting hole; 3. an SMA radio frequency head; 4. a signal line; 41. crocodile clips; 5. a shield wire; 6. a mounting assembly; 61. a screw; 62. a gasket; 63. a nut; 64. and an elastic gasket.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 3.
The application provides a wiring filter testing device, which comprises a detecting instrument 1, a shell 2, an SMA radio frequency head 3, a signal wire 4, a shielding wire 5 and a mounting component 6, and is characterized in that the wiring filter testing device is shown in fig. 1 and 2. The detecting instrument 1 is used for outputting a detecting signal and receiving the detecting signal and providing a detecting result; the shell 2 is used for bearing and fixing the wiring filter 100, and the inner bottom surface is provided with a positioning column 21 for plugging the wiring filter 100; the SMA radio frequency head 3 is connected to the shell 2; one end of the signal wire 4 is connected with the SMA radio frequency head 3, and the other end is connected with the wiring filter 100; one end of the shielding wire 5 is connected with the detecting instrument 1, and the other end is connected with the SMA radio frequency head 3; the mounting assembly 6 is used to attach the SMA radio frequency head 3 to the housing 2.
The wiring filter 100 can be inserted on the positioning column 21 and put into the shell 2, so that the wiring filter 100 is not easy to shake when being tested, wiring is facilitated, meanwhile, after wiring, the signal wire 4 and the shielding wire 5 are not easy to loosen, wiring reliability of the signal wire 4 and the shielding wire 5 is improved, and testing is more accurate.
The detecting instrument 1 may be a frequency response analyzer capable of measuring a transfer function and a reflection coefficient of a filter to be measured, or a time domain analyzer capable of measuring parameters such as an amplitude, a period, a frequency, and a pulse width of an electric signal. The detection instrument 1 has a signal output and a signal input.
The casing 2 is a cuboid, and the top is open. The four corners department of casing 2 is equipped with a mounting hole 24 respectively, and mounting hole 24 vertically link up casing 2, can use mounting hole 24 to fix casing 2 on operating platform, makes casing 2 be difficult for rocking, improves wiring filter 100's installation stability. The positioning groove 22 is formed in the ground surface in the shell 2, and the positioning groove 22 is a rectangular groove and is used for accommodating the wiring filter 100, so that the wiring filter 100 can be positioned, and the connection of the wiring filter 100 in the shell 2 is firmer. The tank bottom integrated into one piece of constant head tank 22 is equipped with two reference columns 21, and two reference columns 21 correspond the through-hole on the wiring filter 100, can aim at the wiring filter 100 and peg graft the reference column 21, make wiring filter 100 be difficult for rocking when carrying out the test.
The bottom of the positioning groove 22 is also provided with the conductive layer 23, and the shell of the wiring filter 100 is directly abutted against the conductive layer 23, so that compared with the traditional test, when the testing device is used for testing, the shell of the wiring filter 100 is in large-area contact with the shell 2 through the conductive layer 23, thereby realizing good grounding, and particularly having obvious high-frequency testing effect and higher testing result accuracy. In the embodiment of the application, the conductive layer 23 is a conductive cloth adhesive tape and is adhered to the bottom of the positioning groove 22.
The SMA radio frequency heads 3 are arranged in a group every two and are connected to two opposite side walls of the shell 2 in a facing way. In the embodiment of the application, six groups of SMA radio frequency heads 3 are arranged in total, one group of SMA radio frequency heads 3 is mainly used, the other groups of SMA radio frequency heads 3 are used as spare, and when the mainly used SMA radio frequency heads 3 have faults, the spare SMA radio frequency heads 3 can be directly started.
The signal wires 4 are used for transmitting signals, two signal wires are arranged, one ends of the signal wires are welded in the welding cups of the SMA radio frequency head 3, the other ends of the signal wires are provided with crocodile clamps 41, and the crocodile clamps 41 are used for clamping the input end or the output end of the wiring filter 100. The two signal wires 4 together connect a set of SMA radio frequency heads 3 in series with the wiring filter 100. The alligator clip 41 can facilitate the quick replacement of the wiring to the different terminals of the wiring filter 100 by an operator to facilitate the wiring to the different sets of terminals of the wiring filter 100, improving the efficiency of the testing operation.
The two shielding wires 5 are arranged, one end of one shielding wire 5 is in threaded connection with the SMA radio frequency head 3, the other end of the shielding wire 5 is connected with the signal output end of the detection instrument 1, and the input end of the corresponding wiring filter 100; one end of the other shielding wire 5 is connected with the other SMA radio frequency head 3 in a threaded manner, and one end of the other shielding wire is connected with the signal input end of the detection instrument 1 and corresponds to the signal output end of the wiring filter 100.
Referring to fig. 2 and 3, the mounting assembly 6 includes a screw 61, a washer 62, a nut 63, and an elastic washer 64. The SMA radio frequency head 3 is provided with a waist-shaped mounting plate which is abutted with the outer side wall of the shell 2. The screws 61 are pan head screws 61 which pass through the mounting plate and the housing 2 in sequence. The washer 62 is fitted over the threaded end of the screw 61 and abuts against the inner wall of the housing 2. The elastic washer 64 is sleeved on the threaded end of the screw 61 and is abutted against the gasket 62; a nut 63 is threaded onto the screw 61 to compress a resilient washer 64 against the washer 62.
The implementation principle of the embodiment of the application is as follows: the shielding wires 5 are installed, and the terminals of different groups of the wiring filter 100 are respectively clamped by using two crocodile clips 41 and sequentially tested by the detecting instrument 1.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A wiring filter testing device, comprising:
a detection instrument (1);
the shell (2) is provided with an upper opening, and the inner bottom surface is provided with a positioning column (21) for plugging the wiring filter;
an SMA radio frequency head (3) connected to the shell (2), two of which are a group;
the signal wires (4) are arranged, one signal wire is connected with the input ends of the SMA radio frequency head (3) and the wiring filter, and the other signal wire is connected with the output ends of the SMA radio frequency head (3) and the wiring filter;
The shielding wires (5) are arranged, one of the shielding wires is connected with the input ends of the SMA radio frequency head (3) and the detecting instrument (1), the other shielding wire is connected with the output ends of the SMA radio frequency head (3) and the detecting instrument (1), and the signal input and the signal output correspond to the signal wire (4).
2. A wiring filter testing device according to claim 1, wherein the SMA radio frequency heads (3) are provided with a plurality of groups, each group of SMA radio frequency heads (3) being directly opposite.
3. A wiring filter testing device according to claim 1, characterized in that the signal wire (4) is welded at one end to the SMA radio frequency head (3) and at the other end is provided with a crocodile clip (41) clamped at the input or output of the wiring filter.
4. A wiring filter testing device according to claim 1, characterized in that a mounting assembly (6) is arranged between the SMA radio frequency head (3) and the housing (2), the mounting assembly (6) comprising:
The screw (61) penetrates through the side walls of the SMA radio frequency head (3) and the shell (2);
A gasket (62) sleeved on the screw (61) and abutted against the inner side wall of the shell (2);
a nut (63) screwed with the screw (61).
5. A wiring filter testing device according to claim 4, characterized in that the mounting assembly (6) further comprises a resilient washer (64) arranged between the washer (62) and the nut (63).
6. A wiring filter testing device according to claim 1, wherein a positioning groove (22) for accommodating a wiring filter is provided on the inner bottom surface of the housing (2).
7. A wiring filter testing device according to claim 6, characterized in that a conductive layer (23) is provided in the positioning groove (22).
8. A wiring filter testing device according to claim 1, characterized in that the housing (2) is provided with a plurality of mounting holes (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323179812.0U CN221174843U (en) | 2023-11-23 | 2023-11-23 | Wiring filter testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323179812.0U CN221174843U (en) | 2023-11-23 | 2023-11-23 | Wiring filter testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221174843U true CN221174843U (en) | 2024-06-18 |
Family
ID=91463019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323179812.0U Active CN221174843U (en) | 2023-11-23 | 2023-11-23 | Wiring filter testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221174843U (en) |
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2023
- 2023-11-23 CN CN202323179812.0U patent/CN221174843U/en active Active
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