CN203983556U - A kind of adjustable matched load earthing device - Google Patents
A kind of adjustable matched load earthing device Download PDFInfo
- Publication number
- CN203983556U CN203983556U CN201420413374.1U CN201420413374U CN203983556U CN 203983556 U CN203983556 U CN 203983556U CN 201420413374 U CN201420413374 U CN 201420413374U CN 203983556 U CN203983556 U CN 203983556U
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- terminal pad
- load terminal
- interior
- load
- earthing device
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Abstract
The utility model discloses a kind of adjustable matched load earthing device, comprise load terminal pad and grounding assembly, the center of described load terminal pad is provided with through hole, and the side of load terminal pad is provided with several threaded connecting holes; One end of described grounding assembly is connected with the side of load terminal pad by threaded metal column; Load earthing device of the present utility model can ensure firm earthing effect, and flexible structure is changeable, can be repeatedly used, and easy to carry and store.In Pulse Power Techniques, can perform well in the calibration experiment of measuring system.
Description
Technical field
The utility model relates to Pulse Power Techniques field, is specifically related to a kind of adjustable matched load earthing device.
Background technology
In Pulse Power Techniques, for voltage, the electric current of paired pulses power device carry out Measurement accuracy, the method for measurement such as capacitor voltage divider, electric probe (D-dot), magnetic probe (B-dot) are developed gradually.These devices are arranged on the urceolus of one section of coaxial transmission line more.Measurement mechanism is carried out to timing signal, and coaxial transmission line one end is high pressure feed side.For make FD feed undistorted transmit, between transmission line other end inner/outer tube, connect the matched load that resistance equates with transmission line wave impedance.Timing signal from feed-in high-voltage signal between the high pressure feed side inner/outer tube of coaxial transmission line, is measured feed voltage, current signal amplitude and measuring system probe output amplitude simultaneously, and the two is compared and can draw measuring system attenuation coefficient.Matched load is connected with transmission line urceolus by metallic conductor and generally has two kinds of modes by the latter's ground connection.One is according to the outer cylinder size customization of transmission line rigid metal blind plate, is connected by the outer drum flange of bolt and transmission line.The advantage of which is compact conformation, good connecting effect.Shortcoming is the transmission line system that every suit connection blind plate is only applicable to a certain specific dimensions, and utilance is low.Another kind method is to adopt fexible conductor load and transmission line urceolus to be flexible coupling as metal knitted line, metal forming etc.The advantage of the method is flexible structure, and shortcoming is loosely organized, can not ensure earthing effect, easily in demarcation waveform, introduces spurious signal.
Utility model content
The purpose of this utility model is in order to make the syndeton between matched load and transmission line urceolus flexible and changeable, and solid and reliable, and a kind of adjustable matched load earthing device is provided.This device can be realized between matched load and transmission line urceolus and being reliably connected, and flexible structure is adjustable, and repeat usage is high, easy to carry and store.
The utility model adopts following technical scheme: a kind of adjustable matched load earthing device, comprise load terminal pad and grounding assembly, and the center of described load terminal pad is provided with through hole, and the side of load terminal pad is provided with several threaded connecting holes; One end of described grounding assembly is connected with the side of load terminal pad by threaded metal column.
In technique scheme, described load terminal pad is circular, and connecting hole equal angles is evenly arranged on the side of load terminal pad.
Preferential, the number of described connecting hole is adjustable.
In technique scheme, described grounding assembly comprises outer connector, expansion link and interior connector, and described interior connector forms by interior bulb, interior compressing tablet the one end that is arranged on expansion link, and interior bulb can rotate; Described outer connector forms by outer bulb and outer compressing tablet the other end that is arranged on expansion link.
Preferential, described interior bulb, interior compressing tablet, outer brace, outer bulb, external pressure plate shape and size are adjustable as required.
In technique scheme, described expansion link is made up of some sections of Metallic rod, coaxial mutually nested connection between Metallic rod.
The utility model has the advantage of: load earthing device of the present utility model can ensure firm earthing effect, and flexible structure is changeable, can be repeatedly used, and easy to carry and store.In Pulse Power Techniques, can perform well in the calibration experiment of measuring system.
Brief description of the drawings
The utility model will illustrate by embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is front view of the present utility model;
Fig. 2 is the cutaway view of organizing grounding assembly in the utility model;
Fig. 3 is the front section view of load terminal pad in the utility model;
Wherein, the 1st, outer brace, the 2nd, outer bulb, the 3rd, outer compressing tablet, the 4th, expansion link, the 5th, interior compressing tablet, the 6th, interior bulb, the 7th, load terminal pad.
Embodiment
The utility model is mainly made up of load terminal pad and many group grounding assemblies, and the quantity of grounding assembly is adjustable as required.Wherein every group of grounding assembly be by outer brace, outer bulb, and outer compressing tablet, interior bulb, interior compressing tablet, expansion link, the metal material composition that above-mentioned parts are high by conductivity, loss is low, wherein outer compressing tablet and the requirement of interior compressing tablet have certain elasticity.Between outer brace and outer bulb upper end, rely on metallic stud to be connected, interior bulb relies on metallic stud to be arranged on the circumference of load terminal pad.Expansion link upper end has hemisphere pit, and its diameter equates with outer bulb internal diameter.Outer compressing tablet center hole diameter is slightly less than outer bulb diameter.Outer compressing tablet, through outer bulb top, is arranged on expansion link upper end by metallic screw, thereby outer bulb lower end is fixed in the hemisphere pit of expansion link upper end.Expansion link lower end has hemisphere pit, and its diameter equates with interior bulb internal diameter.Interior compressing tablet center hole diameter is slightly less than interior bulb diameter.Interior compressing tablet, through interior bulb bottom, is arranged on expansion link lower end by metallic screw, thereby interior bulb upper end is fixed in the hemisphere pit of expansion link lower end.The elasticity of outer compressing tablet and interior compressing tablet, had both ensured that bulb was connected with pit well, ensured that again bulb can rotate in pit.Outer brace, outer bulb, outer compressing tablet, interior bulb, the size of interior compressing tablet is all adjustable as required.Expansion link mid portion is made up of multistage metal tube, concentric each other, and the diameter of metal tube is ascending nested successively.Except end metal tube, one end of other metal tubes is many group elastic piece structures, thereby the free-extension that can realize between metal tube facilitates the length of adjustable telescopic rod, and keep metal tube mutually between good contact.The shape of metal tube, size, quantity is all adjustable as required, and therefore generally speaking the structure of expansion link and size are adjustable as required.
Embodiment 1:
As shown in Figure 1, form a set of adjustable load earthing device by four groups of grounding assemblies and a load terminal pad.As shown in Figure 3, load terminal pad is diameter 60mm, the brass dish of thickness 10mm, and Pan center is the through hole of diameter 8mm, the uniform inner bolt hole of 8 M4 dark 10 on the circumference at disc thickness half place.Each group grounding assembly is by outer brace as shown in Figure 2, outer bulb, outer compressing tablet, interior bulb, interior compressing tablet, expansion link forms, and its structure is as follows: outer brace is the latten(-tin) of the wide x thickness=16mmx16mmx6mm of long x, latten(-tin) center is the through hole of diameter 10mm, and middle part, outer brace lower end is the internal thread of M4 dark 4.Interior bulb, outer bulb are the brass spheroid of diameter 10mm, and bulb top center is dark 5 internal threads of M4.Interior compressing tablet, outer compressing tablet are diameter 20mm, thick 1.5mm copper sheet, and its center is the through hole of diameter 9.6mm, taking compressing tablet center as the center of circle, the through hole of uniform 4 diameter 3.5mm on the circumference that diameter is 15.Expansion link is made up of three sections of stainless steel metal pipes.Latter end metal tube is the semiclosed cylinder of overall diameter 29mm, total length 70mm, its tail end is the blind end of thickness 10mm, tail end middle part is the hemisphere pit of radius 5mm, taking hemisphere center as the center of circle, the inner bolt hole of uniform 4 M3x5 on the circumference that diameter is 15mm.Latter end metal tube top is the cylinder of interior diameter 25.Stage casing metal tube is the hollow cylinder of overall diameter 24mm, interior diameter 20mm, total length 60mm, 6 groups of elastic piece structures that the equal cloth length of tail end is 10mm, the end of shell fragment is arc, the processing diameter of shell fragment part is 26mm, be slightly larger than the interior diameter of latter end metal tube, to ensure good electrical contact performance between two sections of metal tubes.First section of metal tube is the semiclosed cylinder of overall diameter 19mm, total length 60mm, its top is the blind end of thickness 10mm, top middle portion is the hemisphere pit of radius 5mm, taking hemisphere center as the center of circle, diameter is the inner bolt hole of uniform 4 M3x5 on the circumference of 15mm, first section of metal tube bottom is the cylinder of interior diameter 15mm, 6 groups of elastic piece structures that the equal cloth length of tail end is 10mm, the end of shell fragment is arc, the processing diameter of shell fragment part is 21mm, is slightly larger than the interior diameter of stage casing metal tube, to ensure good electrical contact performance between two sections of metal tubes.
The installation process of whole device is as follows: first inside and outside bulb shiny surface is put into respectively to expansion link two ends hemispherical dimples, center hole by the screw part of inside and outside bulb through inside and outside compressing tablet, uses the M3 metal bolts being of convenient length inside and outside compressing tablet to be anchored on to the two ends of expansion link.The shell fragment end of metal tube is inserted in the metal tube that internal diameter is slightly large successively, form ascending mutually nested complete expansion link.The M4 metal bolts that use is of convenient length is connected outer brace lower end with the bulb on expansion link top, both completed the assembling of one group of grounding assembly.The grounding assembly length assembling can regulate between 96mm ~ 196mm.Complete after four groups of grounding assembly assemblings, then be connected and both complete the installation of whole device with load terminal pad by 4 uniform screws of load terminal pad circumference by M4 metal bolts.Because expansion link two ends have adopted ball head structure, make between expansion link and outer brace and load terminal pad, can turn an angle in this device and transmission line urceolus connection procedure, ensured between this device and transmission line urceolus be connected good, stable.
Disclosed all features in this specification, except mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. an adjustable matched load earthing device, is characterized in that comprising load terminal pad and grounding assembly, and the center of described load terminal pad is provided with through hole, and the side of load terminal pad is provided with several threaded connecting holes; One end of described grounding assembly is connected with the side of load terminal pad by threaded metal column.
2. the adjustable matched load earthing device of one according to claim 1, is characterized in that described load terminal pad is for circular, and connecting hole equal angles is evenly arranged on the side of load terminal pad.
3. the adjustable matched load earthing device of one according to claim 2, the number that it is characterized by described connecting hole is adjustable.
4. the adjustable matched load earthing device of one according to claim 1, it is characterized in that described grounding assembly comprises outer connector, expansion link and interior connector, described interior connector forms by interior bulb, interior compressing tablet the one end that is arranged on expansion link, and interior bulb can rotate; Described outer connector forms by outer bulb and outer compressing tablet the other end that is arranged on expansion link.
5. the adjustable matched load earthing device of one according to claim 4, is characterized by described expansion link and is made up of some sections of Metallic rod, coaxial mutually nested connection between Metallic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413374.1U CN203983556U (en) | 2014-07-25 | 2014-07-25 | A kind of adjustable matched load earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413374.1U CN203983556U (en) | 2014-07-25 | 2014-07-25 | A kind of adjustable matched load earthing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983556U true CN203983556U (en) | 2014-12-03 |
Family
ID=51980976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413374.1U Expired - Fee Related CN203983556U (en) | 2014-07-25 | 2014-07-25 | A kind of adjustable matched load earthing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN107863616A (en) * | 2017-10-26 | 2018-03-30 | 镇江科胜电子科技有限公司 | A kind of detachable electric power connector of dock |
-
2014
- 2014-07-25 CN CN201420413374.1U patent/CN203983556U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN107863616A (en) * | 2017-10-26 | 2018-03-30 | 镇江科胜电子科技有限公司 | A kind of detachable electric power connector of dock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150725 |
|
| EXPY | Termination of patent right or utility model |