CN212483697U - Coupling network resistance box - Google Patents
Coupling network resistance box Download PDFInfo
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- CN212483697U CN212483697U CN202021253779.5U CN202021253779U CN212483697U CN 212483697 U CN212483697 U CN 212483697U CN 202021253779 U CN202021253779 U CN 202021253779U CN 212483697 U CN212483697 U CN 212483697U
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Abstract
The utility model relates to a coupling network resistance box, wherein, coupling network resistance box on be equipped with the connector, coupling network circuit connection in electric capacity accessible connector and the box is equipped with the wire in the box outside simultaneously, also can pull out to locate the box outside with inserting. By adopting the coupling network resistance box with the structure, the capacitor and the lead can be arranged outside the box body in a pluggable manner, the capacitor and the lead can be connected to the designated node position in the coupling network circuit through the corresponding interface group, and the change of the circuit structure is realized by adjusting the connection relation between the capacitor and the lead and the first interface group and the second interface group, so that the lightning stroke test requirements of different standards are met, the box body does not need to be opened when the circuit is changed, the operation is simple and convenient, and the service life of the coupling network resistance box is longer.
Description
Technical Field
The utility model relates to a thunderbolt test technical field specifically indicates a coupling network resistance box.
Background
The lightning stroke test has new and old test standards, along with the upgrading of K.21 lightning stroke test requirement standards, an original coupling network resistance box cannot meet the test of the new standard, but the old version of the standard is not directly eliminated, some countries still adopt the old version of the lightning stroke test requirement standards, and the specific adopted test standard for testing mainly depends on the requirements of customers and the market of products.
Although the new and old K.21 lightning stroke test requirements standards are used, the coupling network resistance box used by the old standard can not meet the test requirements of the new standard. For some testers, if lightning stroke testing needs to be performed by adopting new and old test standards, two sets of test equipment need to be prepared, or the coupling network resistance box needs to be adjusted before the test standards are switched every time, components of the coupling network resistance box in the prior art are all located inside the box body, the coupling network resistance box needs to be opened during adjustment every time, then the positions of the internal components are debugged, the adjusting mode is low in efficiency, and the internal connecting line of the resistance box is loosened after the resistance box is disassembled and assembled for many times, so that the testing result is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome at least one of the defects of the prior art and provide a coupling network resistance box with convenient use and long service life,
In order to achieve the above and other objects, the coupling network resistance box of the present invention is as follows:
the coupling network resistance box is mainly characterized in that the coupling network resistance box comprises a box body, a coupling network circuit, a capacitor and a lead;
the coupling network circuit is arranged in the box body, a first interface group and a second interface group are connected to the surface of the box body in an embedded mode, and the first interface group and the second interface group are respectively connected to a first node position and a second node position which are preset in the coupling network circuit; the first interface group and the second interface group respectively comprise two interfaces;
the capacitor and the lead are arranged outside the box body, and
when two ends of the capacitor are connected with two interfaces of the first interface group and are connected in series with a first node position in the coupling network circuit through the first interface group, two ends of the lead are connected with two interfaces of the second interface group and are connected in series with a second node position in the coupling network circuit through the second interface group;
when the two ends of the capacitor are connected with the two interfaces of the second interface group and are connected in series at the second node position in the coupling network circuit through the second interface group, the two ends of the conducting wire are connected with the two interfaces of the first interface group and are connected in series at the first node position in the coupling network circuit through the first interface group.
Preferably, the coupling network circuit includes a first input terminal, a second input terminal, a first output terminal, a second output terminal, a first resistor and a second resistor;
the first input end is connected with one interface in the first interface group, and the other interface in the first interface group is respectively connected with the first end of the first resistor and the first end of the second resistor;
the second end of the first resistor is connected with one interface in the second interface group, and the other interface in the second interface group is connected with the first output end;
and the second end of the second resistor is respectively connected with the second input end and the second output end.
Preferably, the coupling network resistance box is used in lightning stroke testing.
Furthermore, the coupling network resistance box also comprises a lightning stroke waveform generator, a switch group and a power supply;
two ports of the lightning stroke waveform generator are respectively connected with a first input end and a second input end of the coupling network circuit;
the first output end of the coupling network circuit is respectively connected with the corresponding interface on the tested equipment through each switch in the switch group;
the power supply is connected with a power supply port of the tested device;
and the second output end of the coupling network circuit, the port needing grounding in the tested device and the grounding end in the power supply are all grounded.
Adopt the utility model discloses a coupling network resistance box can pull out electric capacity and wire and insert and locate the box outside, and the appointed node position in the coupling network circuit is assembled to the interface that electric capacity and wire accessible correspond, through the relation of connection of adjustment electric capacity and wire and first interface group and second interface group realize the change to circuit structure to satisfy different standards's thunderbolt test requirement, and when changing the circuit, need not to open the box, and is easy and simple to handle, and coupling network resistance box life-span is longer.
Drawings
Fig. 1 is a schematic circuit diagram of a coupling network resistor box in an embodiment.
Fig. 2 is a schematic external view of a resistor box of a coupling network according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to specific embodiments.
As shown in fig. 1 and 2, the coupling network resistance box of the present invention includes a box body, a coupling network circuit, a capacitor C1 and a lead;
the coupling network circuit is arranged in the box body, a first interface group and a second interface group are connected to the surface of the box body in an embedded mode, and the first interface group and the second interface group are respectively connected to a first node position and a second node position which are preset in the coupling network circuit; the first interface group and the second interface group respectively comprise two interfaces;
the capacitor C1 and the wires are arranged outside the box body in a pluggable manner (namely, the capacitor C1 and the wires are both externally arranged in a pluggable design), and
when the two ends of the capacitor C1 are connected to the two interfaces of the first interface group and connected in series to the first node position in the coupling network circuit through the first interface group, the two ends of the wire are connected to the two interfaces of the second interface group and connected in series to the second node position in the coupling network circuit through the second interface group;
when the two ends of the capacitor C1 are connected to the two interfaces of the second interface group and connected in series to the second node position in the coupling network circuit through the second interface group, the two ends of the wire are connected to the two interfaces of the first interface group and connected in series to the first node position in the coupling network circuit through the first interface group.
In this embodiment, the coupling network circuit includes a first input terminal, a second input terminal, a first output terminal, a second output terminal, a first resistor R1 and a second resistor R2;
the first input end is connected with one interface in the first interface group, and the other interface in the first interface group is respectively connected with the first end of the first resistor R1 and the first end of the second resistor R2;
a second end of the first resistor R1 is connected to one interface of the second interface group, and another interface of the second interface group is connected to the first output end;
a second end of the second resistor R2 is connected to the second input end and the second output end, respectively.
The coupling network resistance box in this embodiment is used in lightning strike testing.
In this embodiment, the coupling network resistance box further comprises a lightning waveform generator, a switch group and a power supply;
two ports of the lightning stroke waveform generator are respectively connected with a first input end and a second input end of the coupling network circuit;
the first output end of the coupling network circuit is respectively connected with the corresponding interface on the tested equipment through each switch in the switch group;
the power supply is connected with a power supply port of the tested device;
and the second output end of the coupling network circuit, the port needing grounding in the tested device and the grounding end in the power supply are all grounded.
As shown in fig. 1, in this embodiment, the switch group includes 4 switches, which are respectively a switch 1, a switch 2, a switch 3, and a switch 4, where the 4 switches are respectively connected to a terminal 1a, a terminal 2a, a terminal 3a, and a terminal 4a in the device under test, and the ground terminals of the terminal 1b, the terminal 2b, the terminal 3b, the terminal 4b, the ground terminal, and the power port in the device under test are all the ports that need to be grounded in the device under test, and need to be grounded (i.e., connected to the ground). In this embodiment, the switch 1, the switch 2, the switch 3, and the switch 4 are all selection switches, which can be selectively connected to the corresponding terminals a or b on the device under test.
The coupling network resistance box in this embodiment can be used for lightning strike testing, which can meet the switch between the new and old testing standards. Different from the structure that the position of the capacitor C1 is fixedly arranged in the box body in the prior art, when standard switching is carried out, a new standard is required to be used for testing, only a coupling box is made, or the box is opened, the coupling capacitor C1 is placed behind a high-voltage end resistor to be connected in series, and then the coupling box is restored after being used up, the coupling network resistor box of the new standard can only be used for lightning stroke differential mode testing and cannot be used for lightning stroke common mode testing, the capacitor C1 in the coupling network resistor box can be used only by adjusting, which is very inconvenient and consumes a large amount of testing time, and economic and efficiency losses are caused; as shown in fig. 2, wire and electric capacity C1 are located the box outside, during the application, can insert first interface group and second interface group with wire and electric capacity C1 according to the demand, adopt promptly the utility model provides a coupling network resistance case accessible is pulled out and is inserted the operation and change electric capacity C1 position, need not to unpack just can realize the adjustment to the circuit, peels off electric capacity C1 from the coupling network resistance incasement, changes built-in coupling electric capacity C1's mode into external coupling electric capacity C1 mode, can satisfy newly, the switching of old standard and need not customize other coupling cases again, also satisfy the switching of common mode and differential mode test simultaneously thunderbolt, satisfy the thunderbolt test demand to different standards. When the old standard is adopted for detection, the capacitor C1 is arranged in the first interface group, and the lead is arranged in the second interface group; when the new standard is adopted for detection, the capacitor C1 is arranged in the second interface group, and the lead is arranged in the first interface group. Fig. 1 is a circuit diagram showing the detection using the new standard. From the view of fig. 2, the box body is further provided with a high-voltage end interface and a low-voltage end interface, the high-voltage end interface is a lightning stroke waveform transmitting end, and the low-voltage end is grounded, so that a current loop is formed.
The working principle is as follows
The position is switched and shifted to the rear of the resistor of the first resistor R1 through the external capacitor C1 to carry out lightning differential mode testing, when the old standard test is needed, the external capacitor C1 is shifted to the front of the resistors of the first resistor R1 and the second resistor R2, and the position of the external capacitor C1 is changed, so that the test mode applicable to the new standard and the old standard is realized.
Adopt the utility model discloses a coupling network resistance box can pull out electric capacity and wire and insert and locate the box outside, and the appointed node position in the coupling network circuit is assembled to the interface that electric capacity and wire accessible correspond, through the relation of connection of adjustment electric capacity and wire and first interface group and second interface group realize the change to circuit structure to satisfy different standards's thunderbolt test requirement, and when changing the circuit, need not to open the box, and is easy and simple to handle, and coupling network resistance box life-span is longer.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (4)
1. A coupling network resistance box is characterized by comprising a box body, a coupling network circuit, a capacitor and a lead;
the coupling network circuit is arranged in the box body, a first interface group and a second interface group are connected to the surface of the box body in an embedded mode, and the first interface group and the second interface group are respectively connected to a first node position and a second node position which are preset in the coupling network circuit; the first interface group and the second interface group respectively comprise two interfaces;
the capacitor and the lead are arranged outside the box body in a pluggable manner, and
when two ends of the capacitor are connected with two interfaces of the first interface group and are connected in series with a first node position in the coupling network circuit through the first interface group, two ends of the lead are connected with two interfaces of the second interface group and are connected in series with a second node position in the coupling network circuit through the second interface group;
when the two ends of the capacitor are connected with the two interfaces of the second interface group and are connected in series at the second node position in the coupling network circuit through the second interface group, the two ends of the conducting wire are connected with the two interfaces of the first interface group and are connected in series at the first node position in the coupling network circuit through the first interface group.
2. The coupling network resistance box of claim 1, wherein the coupling network circuit comprises a first input terminal, a second input terminal, a first output terminal, a second output terminal, a first resistor, and a second resistor;
the first input end is connected with one interface in the first interface group, and the other interface in the first interface group is respectively connected with the first end of the first resistor and the first end of the second resistor;
the second end of the first resistor is connected with one interface in the second interface group, and the other interface in the second interface group is connected with the first output end;
and the second end of the second resistor is respectively connected with the second input end and the second output end.
3. The coupling network resistance box of claim 2, wherein the coupling network resistance box is used in lightning strike testing.
4. The coupling network resistance box of claim 3, further comprising a lightning waveform generator, a switch set, and a power supply;
two ports of the lightning stroke waveform generator are respectively connected with a first input end and a second input end of the coupling network circuit;
the first output end of the coupling network circuit is respectively connected with the corresponding interface on the tested equipment through each switch in the switch group;
the power supply is connected with a power supply port of the tested device;
and the second output end of the coupling network circuit, the port needing grounding in the tested device and the grounding end in the power supply are all grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021253779.5U CN212483697U (en) | 2020-07-01 | 2020-07-01 | Coupling network resistance box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021253779.5U CN212483697U (en) | 2020-07-01 | 2020-07-01 | Coupling network resistance box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212483697U true CN212483697U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021253779.5U Active CN212483697U (en) | 2020-07-01 | 2020-07-01 | Coupling network resistance box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212483697U (en) |
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2020
- 2020-07-01 CN CN202021253779.5U patent/CN212483697U/en active Active
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