CN221007749U - Cable and cable assembly - Google Patents
Cable and cable assembly Download PDFInfo
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- CN221007749U CN221007749U CN202322697028.2U CN202322697028U CN221007749U CN 221007749 U CN221007749 U CN 221007749U CN 202322697028 U CN202322697028 U CN 202322697028U CN 221007749 U CN221007749 U CN 221007749U
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- 238000003466 welding Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 description 8
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Abstract
The embodiment of the application relates to the technical field of electromagnetic compatibility testing, in particular to a cable and a cable assembly. Wherein, the cable includes: the input end is connected with the output end through the signal transmission part; the input end is used for being connected with a power supply, and the output end is used for being connected with the electronic equipment to be tested; the signal transmission part comprises a power line and a grounding line, and at least one adjustable filter unit is connected in parallel between the power line and the grounding line. According to the technical scheme, the operations of rectifying, disassembling, welding and the like of a prototype of the electronic equipment required for removing the interference signals in the prior art are avoided, and the method is beneficial to reducing cost and improving testing efficiency.
Description
Technical Field
The embodiment of the application relates to the technical field of electromagnetic compatibility testing, in particular to a cable and a cable assembly.
Background
At present, electronic products such as mobile phones and the like can be marketed only by meeting electromagnetic compatibility (ElectroMagnetic Compatibility, EMC) test standards. Therefore, at the beginning of the design of electronic products, research and development personnel can perform EMC test on the electronic equipment, but failure conditions can be met when the EMC test is performed. When the electronic equipment performs EMC test, a power supply is required to be provided for the electronic equipment. Because of some interference signals in the power supply, failure of the EMC test is easy to cause, i.e. the failure of the EMC test is closely related to the power supply.
Therefore, after the electronic device receives the power signal, the interference signal in the power supply needs to be filtered. In the prior art, when filtering out an interference signal in a power supply, a filter device is generally disposed on an electronic device to remove the interference signal. Attempts to remove the interference signal by different filtering devices are made to achieve the optimal condition, so that the operations of rectifying, disassembling, welding and the like of the prototype of the electronic equipment are involved. The above operation processes of modifying, disassembling, welding and the like of the prototype of the electronic equipment need professional staff to process, the process is tedious and long, and the original state of the prototype can be changed during modifying the prototype, so that the cost is high, a great amount of time is occupied for research and development staff, and the cost is consumed and the test efficiency is reduced.
Disclosure of utility model
Based on the above, it is necessary to solve the above-mentioned technical problems, and the present application provides a cable and a cable assembly, which avoid the need of performing operations such as modifying, disassembling, welding, etc. on an electronic device in the prior art, and are beneficial to reducing cost and improving testing efficiency.
In a first aspect, the present application provides a cable comprising:
The input end is connected with the output end through the signal transmission part; the input end is used for being connected with a power supply, and the output end is used for being connected with electronic equipment to be tested;
The signal transmission part comprises a power line and a grounding line, and at least one adjustable filter unit is connected in parallel between the power line and the grounding line.
In some embodiments, the tunable filter unit comprises a tunable capacitor;
and a plurality of adjustable capacitors are connected in parallel between the power line and the grounding line, and the capacitance adjustment precision of each adjustable capacitor is different.
In some embodiments, the tunable capacitors include a first tunable capacitor, a second tunable capacitor, and a third tunable capacitor;
The capacitance adjustment range of the first adjustable capacitor is 1uF-1000uF, the capacitance adjustment range of the second adjustable capacitor is 1nF-1000nF, and the capacitance adjustment range of the second adjustable capacitor is 0.1pF-1000pF.
In some embodiments, the cable further comprises:
A housing including a shielding layer and an insulating layer;
the shielding layer wraps the signal transmission part, and the insulating layer wraps the shielding layer.
In some embodiments, a capacitance adjusting component for adjusting the adjustable capacitor is arranged on the shell;
the capacitance adjusting parts are connected with the adjustable capacitors in a one-to-one correspondence mode.
In some embodiments, the capacitance adjustment component comprises a knob.
In some embodiments, a display member for displaying the capacitance value of the tunable capacitor is provided on the housing.
In some embodiments, the tunable filter unit includes a tunable inductor.
In some embodiments, the signal transmission part further includes a positive data line and a negative data line.
In a second aspect, the application also provides a cable assembly comprising a cable according to the first aspect.
The cable provided by the embodiment of the application comprises: the input end is connected with the output end through the signal transmission part; the input end is used for being connected with a power supply, and the output end is used for being connected with the electronic equipment to be tested; the signal transmission part comprises a power line and a grounding line, and at least one adjustable filter unit is connected in parallel between the power line and the grounding line. Therefore, at least one adjustable filter unit is connected in parallel between the power line and the ground line, interference signals in the power supply are filtered through the adjustable filter unit, the interference signals are removed, and the power supply with the interference line numbers removed is received at the electronic equipment, so that the problems that in the prior art, when attempts of removing the interference signals to perform different filter devices are performed, the electronic equipment is subjected to modification, disassembly, welding and the like, professional personnel are required to process, the process is complicated, the time consumption is long, the original state of the sample machine can be changed during modification of the sample machine, and the cost is high, and a great amount of time is occupied for research and development personnel are avoided. The cable provided by the embodiment of the application is beneficial to reducing the cost and improving the testing efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a cable according to an embodiment of the present application;
Fig. 2 is a schematic structural diagram of another cable according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a cable according to an embodiment of the present application;
fig. 4 is a schematic surface view of a cable according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another cable according to an embodiment of the present disclosure.
11, A signal transmission part; 111. a power line; 112. a ground wire; 113. a positive signal line; 114. a negative signal line; 12. an adjustable filtering unit; 01. a first tunable filter unit; 02. a second tunable filter unit; 03. a third tunable filter unit; 13. a housing; 131. a shielding layer; 132. an insulating layer; 14. a capacitance adjusting part; 15. a display section; 011. a first capacitance adjusting part; 012. a second capacitance adjusting part; 013. a third capacitance adjusting part; A. an input end; B. an output end; C. an adjustable capacitor; c11, a first tunable capacitor; c12, a second tunable capacitor; c13, a third tunable capacitor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the prior art, when filtering out an interference signal in a power supply, a filter device is generally disposed on an electronic device to remove the interference signal. Attempts to make different filtering devices involved in achieving optimal conditions for removing interference signals, and thus involved in modifying, disassembling, welding, etc. of prototype electronic equipment. The process needs professional processing, is tedious and long, and can change the original state of the prototype during the correction of the prototype, so that the cost is high, a great deal of time is occupied for research and development personnel, and the cost is consumed and the test efficiency is reduced.
Aiming at the technical problems, the embodiment of the application provides a cable. According to the cable provided by the embodiment of the application, at least one adjustable filter unit is connected in parallel between the power line and the ground line, interference signals in the power supply are filtered through the adjustable filter unit, the interference signals are removed, and the power supply with the removed interference line numbers can be received by electronic equipment, so that the problems that in the prior art, due to the fact that the adjustment, the disassembly, the welding and the like of a model machine of the electronic equipment are carried out when attempts of removing the interference signals to carry out different filter devices are avoided, professional staff processing is required, the process is complicated and the time is long are solved, and the original state of the model machine can be changed when the model machine is adjusted, the cost is high, and a great amount of time is occupied for research staff are avoided. The cable provided by the embodiment of the application is beneficial to reducing the cost and improving the testing efficiency.
The cable and the cable assembly provided by the embodiment of the application are exemplified below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a cable according to an embodiment of the present application. As shown in fig. 1, the cable includes: the input end A, the output end B and the signal transmission part 11 are connected through the signal transmission part 11; the input end A is used for being connected with a power supply, and the output end B is used for being connected with electronic equipment to be tested; the signal transmission part 11 includes a power line 111 and a ground line 112, and at least one tunable filter unit 12 is connected in parallel between the power line 111 and the ground line 112.
Specifically, at least one tunable filter unit 12 is connected in parallel between the power line 111 and the ground line 112, and three tunable filter units 12, that is, a first tunable filter unit 01, a second tunable filter unit 02, and a third tunable filter unit 03, are exemplarily shown in fig. 1 to be connected in parallel between the power line 111 and the ground line 112. The power signal input by the input end A can be transmitted to the electronic equipment to be tested by the signal transmission part 11 through the adjustable filtering unit 12, so that the interference signal in the power signal is removed and reaches the optimal state, and the influence of the interference signal on the EMC test of the electronic equipment to be tested is reduced.
In the prior art, when filtering out an interference signal in a power supply, a filter device is generally disposed on an electronic device to remove the interference signal. Attempts to make different filtering devices involve achieving the optimal conditions of removing interference signals, and involve operations such as modification, disassembly, welding and the like of a prototype of the electronic equipment. Compared with the prior art, the cable provided by the embodiment of the application has the advantages that at least one adjustable filter unit is connected in parallel between the power line and the ground line, interference signals in the power supply are filtered through the adjustable filter unit, the interference signals are removed, and the power supply with the interference line number removed at the electronic equipment terminal can be realized, so that the problems that in the prior art, when different filter devices are tried to be removed through removing the interference signals, the machine is changed, detached, welded and the like of a model machine of the electronic equipment are avoided, and professional processing is required, the process is complicated and long time is consumed are solved, and the original state of the model machine is possibly changed during the model machine is changed, so that the cost is high, and a great amount of time is occupied for research personnel. The cable provided by the embodiment of the application is beneficial to reducing the cost and improving the testing efficiency.
The cable provided by the embodiment of the application comprises: the input end is connected with the output end through the signal transmission part; the input end is used for being connected with a power supply, and the output end is used for being connected with the electronic equipment to be tested; the signal transmission part comprises a power line and a grounding line, and at least one adjustable filter unit is connected in parallel between the power line and the grounding line. Therefore, at least one adjustable filter unit is connected in parallel between the power line and the ground line, interference signals in the power supply are filtered through the adjustable filter unit, the interference signals are removed, and the power supply with the interference line numbers removed is received at the electronic equipment, so that the problems that in the prior art, when attempts of removing the interference signals to perform different filter devices are performed, the electronic equipment is subjected to modification, disassembly, welding and the like, professional personnel are required to process, the process is complicated, the time consumption is long, the original state of the sample machine can be changed during modification of the sample machine, and the cost is high, and a great amount of time is occupied for research and development personnel are avoided. The cable provided by the embodiment of the application is beneficial to reducing the cost and improving the testing efficiency.
In some embodiments, fig. 2 is a schematic structural diagram of another cable according to an embodiment of the present application. Referring to fig. 1 and 2, the tunable filter unit 12 includes a plurality of tunable capacitors C connected in parallel between the power line 111 and the ground line 112, and the capacitance adjustment precision of each of the tunable capacitors C is different.
Specifically, a plurality of adjustable capacitors C may be connected in parallel between the power line 111 and the ground line 112, and the capacitance adjustment precision of each adjustable capacitor C is set to be different, so that an appropriate capacitance value can be adjusted on the wire number transmission portion 11, an interference signal in the power signal is removed, an optimal state is achieved, and a test success rate of the electronic device to be tested is improved.
Illustratively, three tunable capacitors C, a first tunable capacitor C11, a second tunable capacitor C12, and a third tunable capacitor C13, respectively, are connected in parallel between the power line 111 and the ground line 112. The capacitance adjustment range of the first adjustable capacitor C11 is 1uF-1000uF, the capacitance adjustment range of the second adjustable capacitor C12 is 1nF-1000nF, and the capacitance adjustment range of the third adjustable capacitor C13 is 0.1pF-1000pF.
Therefore, the first adjustable capacitor C11 is used for coarse adjustment of the capacitance of the wire transmission part 11, the second adjustable capacitor C12 is used for medium adjustment of the capacitance of the wire transmission part 11, and the third adjustable capacitor C13 is used for fine adjustment of the capacitance of the wire transmission part 11, so that a proper capacitance value is adjusted on the wire transmission part 11, interference signals in power signals are removed, an optimal state is achieved, and the test success rate of the electronic equipment to be tested is improved.
In some embodiments, fig. 3 is a schematic cross-sectional view of a cable according to an embodiment of the present application. On the basis of fig. 1, in combination with fig. 3, the cable further comprises: a housing 13, the housing 13 including a shielding layer 131 and an insulating layer 132; the shielding layer 131 wraps the signal transmission part 11, and the insulating layer 132 wraps the shielding layer 133.
Specifically, the casing 13 includes the shielding layer 131 and the insulating layer 132, and the shielding layer 131 is arranged to wrap the signal transmission part 11, so that interference of external electromagnetic radiation to the power supply signal is shielded, and further, the success rate of testing the electronic device to be tested is improved.
In some embodiments, fig. 4 is a schematic surface view of a cable according to an embodiment of the present application. Referring to fig. 2 and 4, the housing 13 is provided with a capacitance adjusting member 14 for adjusting the adjustable capacitor C; the capacitance adjusting members 14 are connected to the adjustable capacitors C in one-to-one correspondence.
Specifically, a capacitance adjusting member 14 may be provided on the housing 13, and the capacitance value of each of the tunable capacitors C is adjusted by the corresponding capacitance adjusting member 14. Three capacitance adjusting members 14 (including a first capacitance adjusting member 011, a second capacitance adjusting member 012, and a third capacitance adjusting member 013) are exemplarily shown in fig. 4 provided on the housing 13, and are provided in one-to-one correspondence with the three adjustable capacitors C shown in fig. 2.
For example, the first capacitance adjusting section 011 is used to adjust the capacitance value of the first tunable capacitor C11, the second capacitance adjusting section 012 is used to adjust the capacitance value of the second tunable capacitor C12, and the third capacitance adjusting section 013 is used to adjust the capacitance value of the third tunable capacitor C13. Therefore, the capacitance value of each adjustable capacitor C can be adjusted through the capacitance adjusting part 14 arranged on the shell 13, and the adjustment is convenient and quick without professional operation.
Wherein, each capacitance adjusting part 14 can be set as the knob, only need through the knob can adjust different capacitance value and test from this, finally debug out a suitable capacitance value, debugging operation is simple and convenient, need not the professional and can operate.
Therefore, the embodiment of the application reduces the difficulty of debugging technology by arranging the capacitance adjusting component such as the knob on the shell, and can carry out debugging without professional personnel; through setting up adjustable condenser on the cable, need not tear open just can debug a suitable capacitance value out to the interference signal in the power filters, reduces the uncertainty that the change of model machine environment brought after tearing open, shortens the debugging time, greatly reduced laboratory test expense, and shortened research and development personnel's operating time.
In some embodiments, referring to fig. 4, a display part 15 for displaying the capacitance value of the tunable capacitor C is provided on the housing 13. Thus, the capacitance value of the adjustable capacitor C is displayed by providing the display means 15. The final tuning of the above is illustratively shown as a suitable capacitance value.
In some embodiments, the tunable filter unit includes a tunable inductor. Specifically, the adjustable filter unit is set as an adjustable capacitor, and an appropriate inductance value is adjusted on the wire number transmission part through the adjustable capacitor, so that interference signals in power supply signals are removed, an optimal state is achieved, and the test success rate of the electronic equipment to be tested is improved.
In some embodiments, the tunable filter unit may be further configured as a tunable capacitor and a tunable inductor, so as to remove the interference signal in the power signal, which is not limited herein.
In some embodiments, fig. 5 is a schematic structural diagram of yet another cable according to an embodiment of the present application. As shown in fig. 5, the signal transmission section 11 further includes a positive data line 113 and a negative data line 114. Thus, when EMC testing is performed on the electronic device to be tested, the communication relationship between the power supply and the electronic device to be tested is established through the positive data line 113 and the negative data line 114 of the signal transmission part 11.
On the basis of the embodiments of the application, the application further provides a cable assembly, which comprises the cable as described in the embodiments of the application, so that the cable assembly has the same or similar beneficial effects and is not repeated herein.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A cable, comprising:
The input end is connected with the output end through the signal transmission part; the input end is used for being connected with a power supply, and the output end is used for being connected with electronic equipment to be tested;
The signal transmission part comprises a power line and a grounding line, and at least one adjustable filter unit is connected in parallel between the power line and the grounding line.
2. The cable of claim 1, wherein the tunable filter unit comprises a tunable capacitor;
and a plurality of adjustable capacitors are connected in parallel between the power line and the grounding line, and the capacitance adjustment precision of each adjustable capacitor is different.
3. The cable of claim 2, wherein the tunable capacitor comprises a first tunable capacitor, a second tunable capacitor, and a third tunable capacitor;
The capacitance adjustment range of the first adjustable capacitor is 1uF-1000uF, the capacitance adjustment range of the second adjustable capacitor is 1nF-1000nF, and the capacitance adjustment range of the second adjustable capacitor is 0.1pF-1000pF.
4. The cable of claim 2, further comprising:
A housing including a shielding layer and an insulating layer;
the shielding layer wraps the signal transmission part, and the insulating layer wraps the shielding layer.
5. The cable according to claim 4, wherein a capacitance adjusting member for adjusting the adjustable capacitor is provided on the housing;
the capacitance adjusting parts are connected with the adjustable capacitors in a one-to-one correspondence mode.
6. The cable of claim 5, wherein the capacitance adjustment component comprises a knob.
7. The cable according to claim 4, wherein a display part for displaying a capacitance value of the tunable capacitor is provided on the housing.
8. The cable of claim 1, wherein the tunable filter unit comprises a tunable inductor.
9. The cable of claim 1, wherein the signal transmission portion further comprises a positive data line and a negative data line.
10. A cable assembly comprising a cable according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322697028.2U CN221007749U (en) | 2023-10-08 | 2023-10-08 | Cable and cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322697028.2U CN221007749U (en) | 2023-10-08 | 2023-10-08 | Cable and cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221007749U true CN221007749U (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322697028.2U Active CN221007749U (en) | 2023-10-08 | 2023-10-08 | Cable and cable assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221007749U (en) |
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2023
- 2023-10-08 CN CN202322697028.2U patent/CN221007749U/en active Active
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