CN217281537U - Switching module for shielding cable in dielectric loss test - Google Patents
Switching module for shielding cable in dielectric loss test Download PDFInfo
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- CN217281537U CN217281537U CN202221188378.5U CN202221188378U CN217281537U CN 217281537 U CN217281537 U CN 217281537U CN 202221188378 U CN202221188378 U CN 202221188378U CN 217281537 U CN217281537 U CN 217281537U
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Abstract
The utility model discloses a switching module of shielding cable in dielectric loss test relates to dielectric loss test technical field, include: BNC interface, XLR interface and bridging device; the interior of the BNC interface is connected with one end of the bridging device, and the interior of the XLR interface is connected with the second end of the bridging device; the bridging device is a bridging circuit which comprises a bridging protective sheath, a bridging shielding conductor, a bridging insulating medium and a bridging central conductor; the bridging protective sheath is sleeved on the outer side of the bridging shielding conductor, the bridging shielding conductor is sleeved on the outer side of the bridging insulating medium, and a bridging central conductor is arranged on the inner side of the bridging insulating medium; the BNC interface is electrically connected with the bridging central conductor, and the XLR interface is electrically connected with the bridging central conductor. The utility model discloses realize that test instrument shielded cable's interchange is used interchangeably, reduced the work load that engineering technical personnel changed test cable.
Description
Technical Field
The utility model relates to a dielectric loss test technical field, the switching module of shielding cable in concretely relates to dielectric loss test.
Background
Dielectric loss is an important means for evaluating the insulation state of electrical equipment, and the moisture and aging states of the insulation of the electrical equipment can be judged by measuring the phase angle of leakage current and applied voltage. Because the interfaces of the shielding cables of different test instruments are obviously different, engineering technicians need to repeatedly replace the test instruments and the shielding cables during the test, and a large amount of repeated labor is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of above-mentioned prior art existence, the utility model provides a shielded cable's switching module in the dielectric loss test utilizes transition cable to connect BNC interface and XLR interface, realizes the interchange of different model dielectric loss testing arrangement shielded cable.
The utility model provides a technical scheme does:
a patching module for shielding a cable in a dielectric loss test, comprising:
BNC interface, XLR interface and bridging device;
the inside of the BNC interface is connected with one end of a bridge device, and the inside of the XLR interface is connected with the second end of the bridge device;
the bridging device is a bridging circuit which comprises a bridging protective sheath, a bridging shielding conductor, a bridging insulating medium and a bridging central conductor; the bridging protective sheath is sleeved on the outer side of the bridging shielding conductor, the bridging shielding conductor is sleeved on the outer side of the bridging insulating medium, and a bridging central conductor is arranged on the inner side of the bridging insulating medium;
the BNC interface is electrically connected with the bridging central conductor, and the XLR interface is electrically connected with the bridging central conductor.
As a further technical scheme of the utility model does, the BNC interface passes through pyrocondensation sheath or rubber sheath and is connected with the bridging circuit, the XLR interface uses pyrocondensation sheath or rubber sheath and bridging circuit to be connected.
As a further technical solution of the present invention, the BNC interface is a BNC base, and the BNC base includes a first outer conductor, a first fastening nut, a first lock washer, a first insulating base, a first central conductor, and a first outer conductor connecting sheet; the first outer conductor is sleeved on the outer side of the first insulating base, a first central conductor is arranged on the inner side of the first insulating base, and the first outer conductor and the outer conductor connecting sheet are connected through a first fastening nut and a first anti-loosening washer.
As a further technical solution of the present invention, the BNC interface is a BNC plug, and the BNC plug includes a second outer conductor, a second fastening sheath, a second insulating base, and a second central conductor; the outer side of the second outer layer conductor is provided with a second fastening sheath, the inner side of the second outer layer conductor is provided with a second insulating base, and a second central conductor is arranged in the second insulating base.
As a further technical solution of the present invention, the XLR interface is an XLR base, and the XLR base includes a third outer conductor, a third insulating base, a third central conductor, and a third outer conductor connecting sheet; the inner side of the third outer conductor is provided with a third insulating base, the inner side of the third insulating base is provided with a third central conductor, and the third outer conductor connecting sheet is connected with the third outer conductor through a third fastening nut.
As a further technical scheme of the utility model does, the XLR interface is the XLR plug, the XLR plug includes fourth outer conductor, fourth fastening sheath, fourth insulation base, fourth central conductor, the outside of fourth outer conductor sets up fourth fastening sheath, the inboard of fourth outer conductor sets up fourth insulation base, the inboard of fourth insulation base sets up fourth central conductor.
As a further technical solution of the present invention, the bridging device is a bridge junction box, and the bridge junction box includes a protective casing, a base limiting hole, a base fixing hole, a coaxial cable central conductor, a coaxial cable shielding conductor, a coaxial cable insulating layer, and a coaxial cable protective sheath; the utility model discloses a coaxial cable protection device, including protective housing, base, coaxial cable central conductor, coaxial cable shielding conductor, coaxial cable insulating layer, coaxial cable protective sheath, the last spacing hole of base and the base fixed orifices of setting up of protective housing, protective housing's inside sets up coaxial cable central conductor, coaxial cable shielding conductor's the outside sets up coaxial cable shielding conductor, coaxial cable shielding conductor's the outside sets up coaxial cable insulating layer, coaxial cable insulating layer's the outside sets up coaxial cable protective sheath.
The utility model has the advantages that:
the utility model discloses a switching module has realized BNC interface shielded cable and XLR interface test instrument's being connected to and XLR interface shielded cable and BNC interface test instrument's being connected, realize test instrument shielded cable's interchange and use each other, reduced engineering technical staff and changed the work load of test cable.
Drawings
Fig. 1 is a structural diagram of a switching module for shielding a cable in a dielectric loss test according to the present invention;
fig. 2 is a structural diagram of the bridge connection circuit provided by the present invention;
fig. 3 is a connection structure diagram of the bridge connection circuit provided by the present invention;
fig. 4 is a structural view of the BNC chassis according to the present invention;
fig. 5 is a structural diagram of the BNC plug according to the present invention;
fig. 6 is a schematic diagram of another BNC chassis according to the present invention;
fig. 7 is a schematic diagram of another BNC plug according to the present invention;
fig. 8 is a structural view of the XLR base provided in the present invention;
fig. 9 is a side sectional view of the XLR base proposed by the present invention;
fig. 10 is a structural view of the XLR plug according to the present invention;
fig. 11 is a side sectional view of the XLR plug according to the present invention;
FIG. 12 is a schematic view of another XLR base structure according to the present invention;
fig. 13 is a side cross-sectional view of another XLR base according to the present invention;
fig. 14 is a schematic diagram of another XLR plug according to the present invention;
fig. 15 is a side cross-sectional view of another XLR plug according to the present invention;
fig. 16 is a structural view of the bridge thread box according to the present invention;
fig. 17 is a connection structure diagram of the bridge cable box provided by the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 17, a patching module for shielding a cable in a dielectric loss test includes:
the inside of the BNC interface 100 is connected to one end of the bridge device 300, and the inside of the XLR interface 200 is connected to the second end of the bridge device 300;
the bridging device 300 is a bridging line 301, and the bridging line 301 includes a bridging protective sheath 311, a bridging shielding conductor 312, a bridging insulating medium 313, and a bridging central conductor 314; the bridging protective sheath 311 is sleeved on the outer side of the bridging shielding conductor 312, the bridging shielding conductor 312 is sleeved on the outer side of the bridging insulating medium 313, and a bridging central conductor 314 is arranged on the inner side of the bridging insulating medium 313;
the BNC interface 100 is electrically connected to the bridging center conductor 314 and the XLR interface 200 is electrically connected to the bridging center conductor 314.
The embodiment of the utility model provides an in, BNC interface 100 is connected with bridging circuit 301 through pyrocondensation sheath or rubber sheath, and XLR interface 200 uses pyrocondensation sheath or rubber sheath to be connected with bridging circuit 301.
One end of the bridging line is connected with the pin type BNC plug, and the other end is connected with the socket type XLR plug. The bridging center conductor is connected to the center conductor of the BNC plug and the bridging center conductor is connected to the center conductor of the XLR plug. The outer conductor of bridging links to each other with the outer conductor of BNC plug, and the outer conductor of bridging links to each other with the outer conductor of XLR plug.
The BNC interface is divided into a BNC base and a BNC plug. The BNC base is fixed on a protective shell of the bridge junction box by using bolts, the central electrical connection is connected with a central conductor of the coaxial cable of the bridge circuit (the bridge junction box), and the outer layer electrical connection is connected with an outer layer conductor of the coaxial cable of the bridge circuit (the bridge junction box). The BNC plug is fixed on an insulating sheath of the bridging circuit by using a heat-shrinkable sheath or a rubber sheath, the central electric connection is connected with a central conductor of the coaxial cable of the bridging circuit (the bridge junction box), and the outer layer electric connection is connected with an outer conductor of the coaxial cable of the bridging circuit (the bridge junction box).
The BNC interface 100 is a BNC base 101, wherein the BNC base 101 includes a first outer conductor 111, a first fastening nut 112, a first lock washer 113, a first insulating base 114, a first central conductor 115, and a first outer conductor connecting tab 116; the first outer conductor 111 is sleeved on the outer side of the first insulating base 114, the first central conductor 115 is arranged on the inner side of the first insulating base 114, and the first outer conductor 115 and the first outer conductor connecting piece 116 are connected through the first fastening nut 112 and the first lock washer 113.
In the embodiment of the present invention, the BNC interface 100 can also be a BNC plug 102, and the BNC plug 102 includes a second outer conductor 121, a second fastening sheath 122, a second insulating base 123, and a second central conductor 124; a second fastening sheath 122 is disposed outside the second outer conductor 121, a second insulating base 123 is disposed inside the second outer conductor 121, and a second central conductor 124 is disposed inside the second insulating base 123.
The XLR interface is used to connect shielded cables or test instruments that also use XLR connectors. Wherein the female connectors are used to connect test instruments that also use XLR connectors and the male connectors are used to connect shielded cables that use XLR connectors.
The XLR interface is divided into an XLR base and an XLR plug. The XLR base is fixed on a protective shell of the bridge junction box by using bolts, the central electrical connection is connected with a central conductor of a coaxial cable of the bridge connection circuit (the bridge junction box), and the outer layer electrical connection is connected with an outer conductor of the coaxial cable of the bridge connection circuit (the bridge junction box). The XLR plug is fixed on an insulating sheath of the bridging circuit by using a heat-shrinkable sheath or a rubber sheath, the central electric connection is connected with a central conductor of the coaxial cable of the bridging circuit (the bridge junction box), and the outer layer electric connection is connected with an outer conductor of the coaxial cable of the bridging circuit (the bridge junction box).
In the embodiment of the present invention, the XLR interface 200 is an XLR base 201, and the XLR base 201 includes a third outer conductor 211, a third insulating base 212, a third central conductor 213, and a third outer conductor connecting piece 214; a third insulating base 212 is arranged on the inner side of the third outer-layer conductor 211, a third central conductor 213 is arranged on the inner side of the third insulating base 212, and the third outer-layer conductor 211 connecting piece is connected with the third outer-layer conductor 213 through a third fastening nut.
In the embodiment of the present invention, the XLR interface 200 is an XLR plug 202, the XLR plug 202 includes a fourth outer conductor 221, a fourth fastening sheath 222, a fourth insulation base 223, and a fourth central conductor 224, the outside of the fourth outer conductor 221 is provided with the fourth fastening sheath 222, the inside of the fourth outer conductor 221 is provided with the fourth insulation base 223, the inside of the fourth insulation base 223 is provided with the fourth central conductor 224.
In the embodiment of the present invention, the bridging device 300 is a bridging line box 302, and the bridging line box 302 includes a protective casing 321, a base limiting hole 322, a base fixing hole 323, a coaxial cable central conductor 324, a coaxial cable shielding conductor 325, a coaxial cable insulating layer 326, and a coaxial cable protective sheath 327; the protective shell 321 is provided with a base limiting hole 322 and a base fixing hole 323, the protective shell 321 is internally provided with a coaxial cable central conductor 324, the outer side of the coaxial cable central conductor 324 is provided with a coaxial cable shielding conductor 325, the outer side of the coaxial cable shielding conductor 325 is provided with a coaxial cable insulating layer 326, and the outer side of the coaxial cable insulating layer 326 is provided with a coaxial cable protective sheath 327.
The embodiment of the utility model provides an in, the BNC interface accords with GB/T11313.8-2015 "radio frequency connector 8 th part: the inner diameter of the outer conductor is 6.5mm (0.256in), the characteristic impedance is 50 omega (75 omega), and the connection interface of the national standard specification of the radio frequency coaxial connector (BNC type) division specification of bayonet connection is divided into a pin type connector and a jack type connector. The XLR interface conforms to the national standard specification GB/T14197-. The bridge circuit (bridge junction box) conforms to GB/T17738.2-2013 radio frequency coaxial cable assembly part 2: flexible coaxial cable assembly sub-specification, national standard specification, or coaxial cable with a protective outer shell. The BNC interface is used to connect shielded cables or test instruments that also use BNC connectors. Wherein the male connector is used to connect a test instrument that also uses a BNC connector and the female connector is used to connect a shielded cable that uses a BNC connector.
One end of the bridging line box is fixed with a jack type BNC base, and the other end is fixed with a jack type XLR base to be connected. The central conductor of the coaxial cable in the bridge junction box is connected with the central conductor of the BNC base, and the central conductor of the coaxial cable is connected with the central conductor of the XLR base. The outer conductor of coaxial cable links to each other with the outer conductor of BNC base, and the outer conductor of coaxial cable links to each other with the outer conductor of XLR base. The bridging line box is provided with a closed protective shell.
The utility model discloses a switching module has realized BNC interface shielded cable and XLR interface test instrument's being connected to and XLR interface shielded cable and BNC interface test instrument's being connected, realize test instrument shielded cable's interchange and use each other, reduced engineering technical staff and changed the work load of test cable.
The present invention has been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art. Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (7)
1. A patching module for shielding a cable in a dielectric loss test is characterized by comprising:
BNC interface, XLR interface and bridging device;
the interior of the BNC interface is connected with one end of the bridging device, and the interior of the XLR interface is connected with the second end of the bridging device;
the bridging device is a bridging circuit which comprises a bridging protective sheath, a bridging shielding conductor, a bridging insulating medium and a bridging central conductor; the bridging protective sheath is sleeved on the outer side of the bridging shielding conductor, the bridging shielding conductor is sleeved on the outer side of the bridging insulating medium, and a bridging central conductor is arranged on the inner side of the bridging insulating medium;
the BNC interface is electrically connected with the bridging central conductor, and the XLR interface is electrically connected with the bridging central conductor.
2. The transition module of shielded cable for dielectric loss testing of claim 1, wherein the BNC interface is connected with the bridge circuit through a heat-shrinkable or rubber sheath, and the XLR interface is connected with the bridge circuit using the heat-shrinkable or rubber sheath.
3. The patching module of claim 1, wherein the BNC interface is a BNC chassis comprising a first outer conductor, a first fastening nut, a first lock washer, a first insulating base, a first central conductor, and a first outer conductor tab; the first outer conductor is sleeved on the outer side of the first insulating base, a first central conductor is arranged on the inner side of the first insulating base, and the first outer conductor and the outer conductor connecting sheet are connected through a first fastening nut and a first anti-loosening washer.
4. The patching module of claim 1, wherein the BNC interface is a BNC plug, the BNC plug comprising a second outer conductor, a second securing sheath, a second insulating base, a second center conductor; the outer side of the second outer conductor is provided with a second fastening sheath, the inner side of the second outer conductor is provided with a second insulating base, and a second central conductor is arranged in the second insulating base.
5. The transition module of shielded cables for dielectric loss testing of claim 1, wherein the XLR interface is an XLR base comprising a third outer conductor, a third insulation base, a third center conductor, a third outer conductor tab; and a third insulating base is arranged on the inner side of the third outer conductor, a third central conductor is arranged on the inner side of the third insulating base, and the third outer conductor connecting sheet is connected with the third outer conductor through a third fastening nut.
6. The transition module for shielding cables during a dielectric loss test of claim 1, wherein the XLR interface is an XLR plug, the XLR plug comprises a fourth outer conductor, a fourth fastening sheath, a fourth insulating base and a fourth central conductor, the fourth fastening sheath is disposed on the outer side of the fourth outer conductor, the fourth insulating base is disposed on the inner side of the fourth outer conductor, and the fourth central conductor is disposed on the inner side of the fourth insulating base.
7. The transition module of shielding cable in dielectric loss test of claim 1, wherein the bridging device is a junction box, the junction box comprises a protective housing, a base limiting hole, a base fixing hole, a coaxial cable central conductor, a coaxial cable shielding conductor, a coaxial cable insulating layer, and a coaxial cable protective sheath; the utility model discloses a coaxial cable protection device, including protective housing, base, coaxial cable central conductor, coaxial cable shielding conductor, coaxial cable insulating layer, coaxial cable protective sheath, the last spacing hole of base and the base fixed orifices of setting up of protective housing, protective housing's inside sets up coaxial cable central conductor, coaxial cable shielding conductor's the outside sets up coaxial cable shielding conductor, coaxial cable shielding conductor's the outside sets up coaxial cable insulating layer, coaxial cable insulating layer's the outside sets up coaxial cable protective sheath.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202221188378.5U CN217281537U (en) | 2022-05-17 | 2022-05-17 | Switching module for shielding cable in dielectric loss test |
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CN202221188378.5U CN217281537U (en) | 2022-05-17 | 2022-05-17 | Switching module for shielding cable in dielectric loss test |
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CN217281537U true CN217281537U (en) | 2022-08-23 |
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CN202221188378.5U Active CN217281537U (en) | 2022-05-17 | 2022-05-17 | Switching module for shielding cable in dielectric loss test |
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