CN218445618U

CN218445618U - Testing device for measuring LISN impedance

Info

Publication number: CN218445618U
Application number: CN202222451237.4U
Authority: CN
Inventors: 龚良
Original assignee: Wuhan Fufan Technology Co ltd
Current assignee: Wuhan Fufan Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-03
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a LISN technical field specifically is a measure testing arrangement of LISN impedance, including LISN shell main part and test base, test base is fixed with the desktop, and the both sides on test base top all are provided with extrusion mechanism, and extrusion mechanism is including the installation piece, the bottom of installation piece and test base's top fixed connection. The utility model discloses a be provided with test base and extrusion mechanism, the extrusion piece receives the spring action of spring, make the one end of extrusion piece block steadily in the inside of groove piece, thereby two extrusion pieces extrude the side of LISN shell main part respectively, the stability of placing of LISN shell main part has been realized, thereby be difficult to remove when making LISN shell main part use, and then make the test go on steadily, solved because the direct use of placing on the desktop of LISN shell main part is not fixed, thereby when actual test, LISN shell main part receives external force and takes place the removal easily, the easy problem that leads to the test to break of instability of LISN shell main part.

Description

Testing device for measuring LISN impedance

Technical Field

The utility model relates to a LISN technical field specifically is a measure testing arrangement of LISN impedance.

Background

LISN, a linear impedance stabilization network, is used to simulate a stable line impedance that provides a stable impedance to the device under test in the radio frequency range.

An authorization notice number is CN 21169800U, and discloses a LISN suitable for high-voltage direct current, which records that a shielding shell is placed on a horizontal desktop, an external power supply connector is inserted into a power line interface, a grounding point is contacted with the ground, the shielding shell is subjected to ground protection, current enters the interior of the LISN shell through the power line interface, the LISN in the interior of the LISN shell detects the current, the influence of the exterior on a high-voltage wire harness can be greatly reduced through the shielding shell, and the stability of the test is ensured.

Above-mentioned prior art places shielding shell and uses on the horizontal desktop, because the shell is directly placed and is used not fixed on the desktop to when actual test, the shell receives external force and takes place to remove easily, and the instability of shell leads to the test to be interrupted easily, is unfavorable for the test, consequently, needs design a measuring LISN impedance's testing arrangement in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measure testing arrangement of LISN impedance to because the shell directly places and uses not fixed on the desktop among the prior art who proposes in solving above-mentioned background art, thereby when actual test, the shell receives external force and takes place to remove easily, and the instability of shell leads to the test to interrupt easily, is unfavorable for the problem of test.

In order to achieve the above object, the utility model provides a following technical scheme: a test device for measuring LISN impedance, comprising: LISN shell main part and test base, test base is fixed with the desktop, and the both sides on test base top all are provided with extrusion mechanism, and extrusion mechanism is including the installation piece, and the bottom of installation piece and test base's top fixed connection, the mounting groove has been seted up to one side of installation piece, the inside fixedly connected with spring of mounting groove, and the one end fixed mounting of spring has the extrusion piece, and the both sides of LISN shell main part bottom are fixed mounting all has the groove piece.

Preferably, a power output port body is fixedly mounted on one surface of the LISN housing body, a first banana jack is formed in one surface of the power output port body, a second banana jack is formed in the upper portion of the power output port body and one surface of the LISN housing body, a banana plug is inserted into one surface of the power output port body, and an earthing terminal is arranged on one surface of the bottom of the LISN housing body.

Preferably, an insulating sheath is fixedly mounted on the outer surface of the power output port body.

Preferably, the one end fixed mounting of banana plug has the extension rod, and the top of extension rod all fixed mounting has the control lever.

Preferably, the top end of the mounting block is provided with an ejection groove, and the top end of the extrusion block is fixedly connected with an ejection rod.

Preferably, a rubber pad is fixedly arranged in the groove block, and stripes are uniformly arranged on the outer surface of the rubber pad.

Preferably, the installation blocks on the front surface and the back surface of the ejection rod are provided with sliding grooves, sliding blocks are arranged inside the sliding grooves in a sliding mode, and one surfaces of the sliding blocks are fixedly connected with the ejection rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through being provided with test base and extrusion mechanism, the extrusion piece receives the spring action of spring, make the one end of extrusion piece block in the inside of groove piece steadily, thereby two extrusion pieces extrude the side of LISN shell main part respectively, the stability that LISN shell main part was placed has been realized, thereby be difficult to remove when making LISN shell main part use, and then make the test go on steadily, solved because LISN shell main part directly places and uses on the desktop not fixed, thereby when the actual test, LISN shell main part receives external force and takes place the removal easily, the instability of LISN shell main part leads to the problem that the test was interrupted easily.

2. Through being provided with the banana plug, adopt the banana plug, be connected power output port main part with the earthing terminal, shortened cable test distance, reduced the influence that the cable warp, can be so that the position and the distance of at every turn testing are fixed to can reduce the test error that different test cables of test and ground wire brought.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

fig. 2 is a schematic partial side view and sectional view of the LISN case body structure of the present invention;

fig. 3 is a schematic front sectional view of the structure of the extruding mechanism of the present invention;

fig. 4 is a schematic side view of the mounting block structure of the present invention.

In the figure: 110. a LISN housing body; 111. testing the base; 112. a power output port body; 113. an insulating sheath; 114. a first banana jack; 115. a second banana jack; 116. banana plugs; 117. a ground terminal; 118. an extension rod; 119. a control lever; 200. an extrusion mechanism; 210. mounting a block; 211. mounting grooves; 212. a spring; 213. extruding the block; 214. a groove block; 215. a rubber pad; 216. ejecting the groove; 217. ejecting the rod; 218. a chute; 219. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, the present invention provides an embodiment: a test device for measuring LISN impedance comprising: the LISN shell body 110 and the test base 111, the test base 111 is fixed to a desktop, the two sides of the top end of the test base 111 are provided with the pressing mechanisms 200, each pressing mechanism 200 comprises an installation block 210, the bottom end of each installation block 210 is fixedly connected with the top end of the test base 111, one side of each installation block 210 is provided with an installation groove 211, a spring 212 is fixedly connected inside each installation groove 211, one end of each spring 212 is fixedly provided with a pressing block 213, the two sides of the bottom of the LISN shell body 110 are fixedly provided with groove blocks 214, each spring 212 and each pressing block 213 are provided with a spring 212, each pressing block 213 is subjected to the elastic action of the spring 212, one end of each pressing block 213 is stably clamped inside each groove block 214, the two pressing blocks 213 respectively press the side surface of the LISN shell body 110, the placing stability of the LISN shell body 110 is realized, the LISN shell body 110 is not easy to move when in use, the test is stably performed, and the problem that the instability of the test shell body 110 is easily caused by the fact that the LISN shell body 110 is easily broken off when in an actual test is solved.

Furthermore, a rubber pad 215 is fixedly installed inside the groove block 214, stripes are uniformly arranged on the outer surface of the rubber pad 215, and the stripes on the rubber pad 215 enable the surface of the rubber pad 215 to be rougher, so that when the extrusion block 213 is located inside the groove block 214, the extrusion block 213 is in direct contact with the rubber pad 215, and the rubber pad 215 enables the fixing effect to be better.

Example two

The utility model provides a measure testing arrangement of LISN impedance, compare in embodiment one, please refer to FIG. 2, one side fixed mounting of LISN shell main part 110 has power output port main part 112, first banana jack 114 has been seted up to power output port main part 112's one side, second banana jack 115 has been seted up with the one side of LISN shell main part 110 in power output port main part 112 upper portion, banana plug 116 has been installed in power output port main part 112's one side insertion, the one side of LISN shell main part 110 bottom is provided with earthing terminal 117, adopt banana plug 116, be connected power output port main part 112 with earthing terminal 117, cable test distance has been shortened, the influence that the cable warp has been reduced, can make the position and the distance of at every turn testing fixed, thereby can reduce the test error that different test cables of test and ground wire brought.

Furthermore, the outer surface of the power output port main body 112 is fixedly provided with an insulating sheath 113, and the insulating sheath 113 plays an insulating role, so that the banana plug 116 can be more safely plugged by a worker, the test is convenient, and the safety of the device in use is improved.

Further, banana plug 116's one end fixed mounting has extension rod 118, and extension rod 118's the all fixed mounting in top has control lever 119, and staff's accessible control lever 119 realizes banana plug 116's grafting, and extension rod 118 and control lever 119 ensure that the staff is difficult to touch banana plug 116 when pegging graft, have further improved the security when testing.

EXAMPLE III

The utility model provides a measure testing arrangement of LISN impedance, compare in embodiment one, please refer to fig. 3-4, ejection groove 216 has been seted up on the top of installation piece 210, the top fixedly connected with ejection rod 217 of extrusion piece 213, when the staff need dismantle LISN shell main part 110, staff's accessible control ejection rod 217 removes the removal that realizes extrusion piece 213, so that extrusion piece 213's inside is kept away from to extrusion piece 213's one end, so that dismantle LISN shell main part 110, the convenience of using has been improved.

Furthermore, the mounting blocks 210 on the front and back of the ejection rod 217 are both provided with sliding grooves 218, the sliding blocks 219 are slidably mounted inside the sliding grooves 218, one side of each sliding block 219 is fixedly connected with the ejection rod 217, when the ejection rod 217 is controlled to move, the sliding blocks 219 can slide inside the sliding grooves 218, the ejection rod 217 can move along the sliding track of the sliding blocks 219, so that the ejection rod 217 can move stably, and the extrusion block 213 can be controlled to move by a worker conveniently.

The working principle is as follows: be provided with spring 212 and extrusion piece 213, extrusion piece 213 receives the spring action of spring 212, make the one end of extrusion piece 213 block in the inside of groove piece 214 steadily, thereby two extrusion pieces 213 extrude the side of LISN shell main part 110 respectively, the stability that LISN shell main part 110 placed has been realized, thereby be difficult to remove when making LISN shell main part 110 use, and then make the test go on steadily, solved because LISN shell main part 110 directly places the use on the desktop and is not fixed, thereby when actual test, LISN shell main part 110 receives external force and takes place the removal easily, the easy problem that leads to the test interrupt of instability of LISN shell main part 110.

Adopt banana plug 116, be connected power output port main part 112 with earthing terminal 117, the cable test distance has been shortened, the influence that the cable warp has been reduced, can make the position and the distance of at every turn testing fixed, thereby can reduce the test error that different test cables of test and ground wire brought, insulating sheath 113 has played insulating effect, make the staff safer when pegging graft banana plug 116, so that the test, the security when the device uses has been improved, staff's accessible control lever 119 realizes banana plug 116's grafting, extension rod 118 and control lever 119 ensure that the staff is difficult to touch banana plug 116 when pegging graft, the security when further having improved the test.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A test apparatus for measuring LISN impedance, comprising: LISN shell main part (110) and test base (111), test base (111) are fixed with the desktop, the both sides on test base (111) top all are provided with extrusion mechanism (200), extrusion mechanism (200) are including installation piece (210), the bottom of installation piece (210) and the top fixed connection of test base (111), mounting groove (211) have been seted up to one side of installation piece (210), inside fixedly connected with spring (212) of mounting groove (211), the one end fixed mounting of spring (212) has extrusion piece (213), the both sides of LISN shell main part (110) bottom are fixed mounting all has groove piece (214).

2. A test device for measuring LISN impedance according to claim 1, wherein: a power output port body (112) is fixedly mounted on one side of the LISN housing body (110), a first banana jack (114) is formed in one side of the power output port body (112), a second banana jack (115) is formed in the upper portion of the power output port body (112) and one side of the LISN housing body (110), a banana plug (116) is inserted into one side of the power output port body (112), and a grounding end (117) is arranged on one side of the bottom of the LISN housing body (110).

3. A test device for measuring LISN impedance according to claim 2, wherein: an insulating sheath (113) is fixedly arranged on the outer surface of the power output port main body (112).

4. A test device for measuring LISN impedance according to claim 2, wherein: one end fixed mounting of banana plug (116) has extension rod (118), and all fixed mounting have control lever (119) on the top of extension rod (118).

5. A test device for measuring LISN impedance according to claim 1, wherein: the top end of the mounting block (210) is provided with an ejection groove (216), and the top end of the extrusion block (213) is fixedly connected with an ejection rod (217).

6. A test device for measuring LISN impedance according to claim 1, characterized in that: the inner part of the groove block (214) is fixedly provided with a rubber pad (215), and the outer surface of the rubber pad (215) is uniformly provided with stripes.

7. The test device for measuring LISN impedance of claim 5, wherein: the mounting blocks (210) on the front surface and the back surface of the ejection rod (217) are respectively provided with a sliding groove (218), a sliding block (219) is slidably mounted inside the sliding groove (218), and one surface of the sliding block (219) is fixedly connected with the ejection rod (217).