CN110927424A - Anti-vibration type direct current shunt for measuring impact current - Google Patents
Anti-vibration type direct current shunt for measuring impact current Download PDFInfo
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- CN110927424A CN110927424A CN201911272951.3A CN201911272951A CN110927424A CN 110927424 A CN110927424 A CN 110927424A CN 201911272951 A CN201911272951 A CN 201911272951A CN 110927424 A CN110927424 A CN 110927424A
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- connecting plate
- concave groove
- block body
- conductive block
- shunt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
Abstract
The invention discloses an anti-vibration direct current divider for measuring impact current, which comprises a left connecting plate, a right connecting plate and a connecting body, wherein the left connecting plate and the right connecting plate are connected into a whole by the connecting body; the left connecting plate comprises a left conductive block body, the left part of the left conductive block body is provided with a through connecting hole, the upper end surface of the left conductive block body is provided with a left connecting bolt, the right part of the left conductive block body is provided with a row of concave groove cavities, and the openings of the concave groove cavities face to the right end; the right connecting plate comprises a right conductive block body, the right part of the right conductive block body is provided with a through connecting hole, the upper end surface of the right conductive block body is provided with a right connecting bolt, the left part of the right conductive block body is provided with a row of concave groove cavities which are arranged up and down, and the openings of the concave groove cavities face to the left end; the concave groove cavity of the left conductive block body and the concave groove cavity of the right conductive block body are symmetrically arranged; the shunt can effectively reduce vibration damage to the shunt in a vibration environment, and through a mode of prolonging the connector, the resistance is enhanced, and impact measurement of large impact current is met.
Description
Technical Field
The invention relates to the technical field of research on impact current measurement and calibration equipment, in particular to an anti-vibration direct current divider for impact current measurement.
Background
The impact of inrush current on the safety performance of electrical equipment is very important and is used to verify the ability of the equipment to withstand transient currents. The impulse current generator and the measuring system thereof are main equipment for simulating the impulse current, are mainly applied to power systems, communication systems, lightning protection component enterprises, railway systems and the like, and are used for performing electromagnetic compatibility tests, lightning arrester tests and lightning impulse current tolerance tests on electrical equipment.
Dc shunts have found wide application in many circuit arrangements with dc current, particularly in circuit arrangements with high dc current and in testing thereof.
The structure of a general direct current constant value shunt is not limited to that according to the national standard, a single shunt piece or a plurality of shunt pieces are welded on joints at two ends in parallel, but when the shunt is required to have a large millivolt number, such as more than 500 mV-1000 mV (the general shunt only needs to be lifted in the China)
45mV, 60mV, 75mV, etc.), and when there is not enough length space, the splitter will bend into wave shape, however, in some devices with strong vibration (such as midship, warship or diesel engine devices, etc.), the splitter with wave structure will not impact the device with strong vibration, and will easily resonate with the vibrating device, so that the splitter will be broken quickly, and the normal operation of the whole device will be affected.
And in the process of measuring the impact current by direct current, the direct current voltage divider and the display are required to be matched for measurement during calibration. However, in the measurement process, the shunt can be subjected to vibration to an unnecessary degree due to unnecessary use of a measurement environment, and for the existing direct current shunt, the vibration has great damage to rigid equipment, and particularly can be seriously damaged under the impact of large current, so that the economy is lost.
Disclosure of Invention
The invention aims to provide an anti-vibration direct current shunt for measuring impact current, which can effectively reduce vibration damage to the shunt in a vibration environment, and meanwhile, the resistance is enhanced in a mode of extending a connecting body, so that the impact measurement of impact large current is met.
The technical scheme adopted by the invention is as follows:
an anti-vibration direct current shunt for measuring impact current comprises a left connecting plate, a right connecting plate and a connecting body, wherein the left connecting plate and the right connecting plate are connected into a whole by the connecting body; the left connecting plate comprises a left conductive block body, the left part of the left conductive block body is provided with a through connecting hole, the upper end face of the left conductive block body is provided with a left connecting bolt, the right part of the left conductive block body is provided with a row of concave groove cavities, the openings of the concave groove cavities face to the right end, and the left connecting plate and the right connecting plate are identical in structure and symmetrical; the right connecting plate comprises a right conductive block body, the right part of the right conductive block body is provided with a through connecting hole, the upper end surface of the right conductive block body is provided with a right connecting bolt, the left part of the right conductive block body is provided with a row of concave groove cavities which are arranged up and down, and the openings of the concave groove cavities face to the left end; the concave slot cavity of the left conductive block body and the concave slot cavity of the right conductive block body are symmetrically arranged.
The connector comprises a plurality of spiral electric conductors which are sequentially arranged from top to bottom, a left clamping bolt and a right clamping bolt are arranged at two end parts of each spiral electric conductor, the left clamping bolt is arranged in a concave groove cavity of the left connecting plate, and the right clamping bolt is arranged in a concave groove cavity of the right connecting plate.
The connector include a plurality of "mesh" font electric conductors, a plurality of "mesh" font electric conductors arrange by last under to in proper order, "mesh" font electric conductor include many horizontal guide arms of horizontal parallel arrangement and two vertical guide arms of longitudinal arrangement, the both ends of many horizontal guide arms are fixed in the pole body of two vertical guide arm corresponding faces respectively, the dorsad face of two vertical guide arms all is connected with left branch and supports the guide arm with the right branch perpendicularly, the left end of left branch supports the guide arm and is equipped with left side cotter, left side cotter is located the concave groove intracavity of left connecting plate, the right-hand member portion of right branch supports the guide arm and is equipped with right side cotter, right side cotter is located the concave groove intracavity of right connecting plate.
The connector include a plurality of snakelike electric conductors, a plurality of snakelike electric conductors arrange in proper order from beginning to end, the both ends of snakelike electric conductor be equipped with left stuck bolt and right stuck bolt, left stuck bolt is located the concave groove intracavity of left connecting plate, right stuck bolt is located the concave groove intracavity of right connecting plate.
An elastic conductive gasket is arranged around the opening circumference of the concave groove cavity.
The elastic conductive gasket is a conductive plastic gasket or a conductive rubber gasket.
The concave groove cavity is transversely or vertically arranged, two end parts in the concave groove cavity are respectively and fixedly provided with a conductive spring, and the free end of the conductive spring is fixed with the left clamping bolt or the right clamping bolt.
The concave slot cavities are arranged in sequence from top to bottom or in a structure smaller than a number from top to bottom.
The concave groove cavities are distributed on the upper parts of the left connecting plate and the right connecting plate and are sequentially arranged from front to back to form a straight line shape.
The invention further increases the resistance value of the conductor by prolonging the length of the conductor, thereby meeting the measurement of large impact current. By utilizing the elastic conductive gasket, the connector is damaged by external vibration in an environment vibration environment, and the effects of protecting and buffering vibration are achieved in vibration. Simultaneously, can make the connector with the good electrical contact of left connecting plate and right connecting plate. The concave groove cavity is clamped with the left clamping bolt and the right clamping bolt to form an integrated structure, so that the connection firmness of the connector is guaranteed, meanwhile, two conductive springs are fixedly arranged at two end parts in the concave groove cavity respectively, and the free ends of the conductive springs are fixed with the left clamping bolt or the right clamping bolt; the function of the conductive spring ensures that the left clamping bolt or the right clamping bolt is in good electric contact with the left connecting plate or the right connecting plate; on the other hand, the connecting body is ensured to float up and down in a vibration environment, so that the connecting body is prevented from being damaged and can be restored even if the connecting body is restored.
The shunt of the invention can meet the requirements of required electrical property, mechanical property, temperature property and the like, and has strong vibration and impact resistance.
Drawings
Fig. 1 is a top view of embodiment 1 of the present invention;
FIG. 2 is a top view of embodiment 2 of the present invention;
fig. 3 is a front view of embodiment 3 of the present invention;
fig. 4 is a front view of embodiment 1 and embodiment 2 of the present invention;
FIG. 5 is an enlarged structural view of FIG. 4 of the present invention;
fig. 6 is a front view of the left connecting plate in embodiment 1 and embodiment 2 of the present invention;
fig. 7 is a front view of the left connecting plate in embodiment 1 and embodiment 2 of the present invention;
fig. 8 is a front view of the left connecting plate in embodiment 3 of the present invention.
Detailed Description
As shown in fig. 1-4, the invention comprises a left connecting plate a, a right connecting plate B and a connecting body, wherein the connecting body connects the left connecting plate a and the right connecting plate B into a whole; left side connecting plate A include left electrically conductive block 1, penetrating connecting hole 2 about the left part of left electrically conductive block 1 is equipped with, connecting hole 2 is used for connecting other configuration equipment. The upper end face of the left conductive block body 1 is provided with a left connecting bolt 3, the right part of the left conductive block body 1 is provided with a row of concave groove cavities 4, the openings of the concave groove cavities 4 face to the right end, and the left connecting plate A and the right connecting plate B are identical and symmetrical in structure; the right connecting plate B comprises a right conductive block body 5, the right part of the right conductive block body 5 is provided with a through connecting hole 2, the upper end surface of the right conductive block body 5 is provided with a right connecting bolt 6, the left part of the right conductive block body 5 is provided with a row of concave groove cavities 4, and the openings of the concave groove cavities 4 face to the left end; the concave slot cavity 4 of the left conductive block body 1 and the concave slot cavity 4 of the right conductive block body 5 are symmetrically arranged. The left connecting bolt 3 and the right connecting bolt 6 are used for connecting a measuring instrument.
As shown in fig. 1, the connector includes a plurality of spiral conductors 7, the plurality of spiral conductors 7 are arranged in sequence from top to bottom, two ends of the spiral conductors 7 are provided with a left latch 8 and a right latch 9, the left latch 8 is disposed in the concave slot cavity 4 of the left connecting plate a, and the right latch 9 is disposed in the concave slot cavity 4 of the right connecting plate B.
As shown in fig. 2, the connector includes a plurality of conductors 10 shaped like a Chinese character 'mu', the conductors 10 shaped like a Chinese character 'mu' are sequentially arranged from top to bottom, the conductors 10 shaped like a Chinese character 'mu' include a plurality of transverse guide rods 10-1 arranged in parallel in a transverse direction and two vertical guide rods 10-2 arranged in a longitudinal direction, two ends of the transverse guide rods 10-1 are respectively fixed on the rod bodies of the corresponding surfaces of the two vertical guide rods 10-2, the back surfaces of the two vertical guide rods 10-2 are vertically connected with a left support guide rod 10-3 and a right support guide rod 10-4, the left end of the left support guide rod 10-3 is provided with a left clamping bolt 8, the left clamping bolt 8 is arranged in the concave slot cavity 4 of the left connecting plate a, the right end of the right support guide rod 10-4 is provided with a right clamping bolt 9, and the right clamping bolt 9 is arranged in the concave slot cavity.
As shown in fig. 3, the connector includes a plurality of serpentine conductors 11, the plurality of serpentine conductors 11 are sequentially arranged in a front-back direction, two end portions of the serpentine conductors 11 are provided with a left latch 8 and a right latch 9, the left latch 8 is disposed in the concave slot cavity 4 of the left connection board a, and the right latch 9 is disposed in the concave slot cavity 4 of the right connection board B.
As shown in fig. 5, an elastic conductive washer 12 is disposed around the opening of the concave slot 4, and the elastic conductive washer 12 is used to lock the two ends of the electrical conductor, so that the electrical conductor is stable in the concave slot 4 and does not shake around, and on the other hand, even if the whole device is in a high-vibration working environment, the connector is not damaged by the buffering effect of the elastic conductive washer 12.
The elastic conductive gasket 12 is a conductive plastic gasket or a conductive rubber gasket. Conductive plastic gasket or conductive rubber gasket: the functional polymer material is a functional polymer material which is processed by a plastic processing method by mixing a resin and a conductive substance. The method is mainly applied to the fields of electronics, integrated circuit packaging, electromagnetic wave shielding and the like. The conductive rubber is prepared by uniformly distributing conductive particles such as silver-plated glass, silver-plated aluminum, silver and the like in silicon rubber, and enabling the conductive particles to be contacted through pressure so as to achieve good conductivity.
As shown in fig. 5, the concave slot cavity 4 is horizontally or vertically arranged, two end portions in the concave slot cavity 4 are respectively and fixedly provided with a conductive spring 13, and the free end of the conductive spring 13 is fixed with the left latch 8 or the right latch 9; the conductive spring 13 is used for ensuring good electric contact between the left clamping bolt 8 or the right clamping bolt 9 and the left connecting plate A or the right connecting plate B; on the other hand, the connecting body is ensured to float up and down in a vibration environment, so that the connecting body is prevented from being damaged and can be restored even if the connecting body is restored.
As shown in fig. 6 and 7, the concave cavities 4 are arranged in a smaller-than-number structure from top to bottom or from top to bottom.
As shown in fig. 8, the concave slot cavities 4 are distributed on the upper portions of the left connecting plate a and the right connecting plate B, and are sequentially arranged from front to back in a straight shape.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention as shown in fig. 1 and 4 comprises a left connecting plate a, a right connecting plate B and a connecting body, wherein the connecting body connects the left connecting plate a and the right connecting plate B into a whole; the left connecting plate A comprises a left conductive block body 1, a through connecting hole 2 is formed in the left part of the left conductive block body 1, a left connecting bolt 3 is arranged on the upper end face of the left conductive block body 1, a row of concave groove cavities 4 are formed in the right part of the left conductive block body 1, the openings of the concave groove cavities 4 face the right end, and the left connecting plate A and the right connecting plate B are identical and symmetrical in structure; the right connecting plate B comprises a right conductive block body 5, the right part of the right conductive block body 5 is provided with a through connecting hole 2, the upper end surface of the right conductive block body 5 is provided with a right connecting bolt 6, the left part of the right conductive block body 5 is provided with a row of concave groove cavities 4, and the openings of the concave groove cavities 4 face to the left end; the concave slot cavity 4 of the left conductive block body 1 and the concave slot cavity 4 of the right conductive block body 5 are symmetrically arranged.
The connector comprises a plurality of spiral electric conductors 7, the spiral electric conductors 7 are sequentially arranged from top to bottom, a left clamping bolt 8 and a right clamping bolt 9 are arranged at two end parts of each spiral electric conductor 7, the left clamping bolt 8 is arranged in the concave groove cavity 4 of the left connecting plate A, and the right clamping bolt 9 is arranged in the concave groove cavity 4 of the right connecting plate B. An elastic conductive gasket 12 is arranged around the opening circumference of the concave groove cavity 4. The design of the spiral electric conductor 7 prolongs the length of the electric conductor, increases the resistance value and meets the requirement of large current measurement in the process of impact current testing.
Meanwhile, as shown in fig. 6 and 7, the concave slot cavities 4 are arranged in sequence from top to bottom or in a smaller structure from top to bottom, as shown in fig. 7, the concave slot cavities 4 are arranged in sequence from top to bottom, and when the concave slot cavities are arranged in this way, the left clamping bolt 8 and the right clamping bolt 9 extending out of the two ends of the spiral conductor 7 are symmetrically distributed from the central line. As shown in fig. 6, the concave slot cavity 4 is arranged in a structure smaller than a square from top to bottom, and when the concave slot cavity is arranged, the left clamping bolt 8 and the right clamping bolt 9 extending out of two ends of the spiral conductor 7 are asymmetrically distributed, and the installation mode is as follows: a-a ', b-b ', c-c ', d-d ', e-e '. When a large rush current flows, the electromagnetic influence between the electric conductors is reduced.
Example 2
As shown in fig. 2 and 4, the present invention comprises a left connecting plate a, a right connecting plate B and a connecting body, wherein the connecting body connects the left connecting plate a and the right connecting plate B into a whole; left side connecting plate A include left electrically conductive block 1, penetrating connecting hole 2 about the left part of left electrically conductive block 1 is equipped with, connecting hole 2 is used for connecting other configuration equipment. The upper end face of the left conductive block body 1 is provided with a left connecting bolt 3, the right part of the left conductive block body 1 is provided with a row of concave groove cavities 4, the openings of the concave groove cavities 4 face to the right end, and the left connecting plate A and the right connecting plate B are identical and symmetrical in structure; the right connecting plate B comprises a right conductive block body 5, the right part of the right conductive block body 5 is provided with a through connecting hole 2, the upper end surface of the right conductive block body 5 is provided with a right connecting bolt 6, the left part of the right conductive block body 5 is provided with a row of concave groove cavities 4, and the openings of the concave groove cavities 4 face to the left end; the concave slot cavity 4 of the left conductive block body 1 and the concave slot cavity 4 of the right conductive block body 5 are symmetrically arranged. The left connecting bolt 3 and the right connecting bolt 6 are used for connecting a measuring instrument.
The connector comprises a plurality of 'mesh' -shaped electric conductors 10, the 'mesh' -shaped electric conductors 10 are sequentially arranged from top to bottom, the 'mesh' -shaped electric conductors 10 comprise a plurality of transverse guide rods 10-1 which are transversely arranged in parallel and two vertical guide rods 10-2 which are longitudinally arranged, two ends of the plurality of transverse guide rods 10-1 are respectively fixed on the rod bodies of the corresponding surfaces of the two vertical guide rods 10-2, the back surfaces of the two vertical guide rods 10-2 are vertically connected with a left supporting guide rod 10-3 and a right supporting guide rod 10-4, the left end part of the left supporting guide rod 10-3 is provided with a left clamping bolt 8, the left clamping bolt 8 is arranged in the concave groove cavity 4 of the left connecting plate A, the right end part of the right supporting guide rod 10-4 is provided with a right clamping bolt 9, and the right clamping bolt 9 is arranged in the concave groove cavity 4 of the right connecting plate B. The design of the conductor 10 is to increase the overall length of the conductor, thereby increasing the resistance and meeting the impact of the impact current. The existing direct current voltage dividers are arranged in an independent transverse mode and are not expanded by the vertical guide rod 10-2, so that the 'mesh' -shaped conductor 10 can measure the ultra-large current.
The concave slot cavities 4 are arranged in sequence from top to bottom or in a structure of less than a number from top to bottom. An elastic conductive gasket 12 is arranged around the opening circumference of the concave groove cavity 4, the concave groove cavity 4 is transversely arranged or vertically arranged (the invention provides a vertical arrangement schematic diagram), two end parts in the concave groove cavity 4 are respectively and fixedly provided with a conductive spring 13, and the free end of the conductive spring 13 is fixed with the left clamping bolt 8 or the right clamping bolt 9; the conductive spring 13 is used for ensuring good electric contact between the left clamping bolt 8 or the right clamping bolt 9 and the left connecting plate A or the right connecting plate B; on the other hand, the connecting body is ensured to float up and down in a vibration environment, so that the connecting body is prevented from being damaged and can be restored even if the connecting body is restored.
Example 3
As shown in fig. 3 and 4, the present invention comprises a left connecting plate a, a right connecting plate B and a connecting body, wherein the connecting body connects the left connecting plate a and the right connecting plate B into a whole; left side connecting plate A include left electrically conductive block 1, penetrating connecting hole 2 about the left part of left electrically conductive block 1 is equipped with, connecting hole 2 is used for connecting other configuration equipment. The upper end face of the left conductive block body 1 is provided with a left connecting bolt 3, the right part of the left conductive block body 1 is provided with a row of concave groove cavities 4, the openings of the concave groove cavities 4 face to the right end, and the left connecting plate A and the right connecting plate B are identical and symmetrical in structure; the right connecting plate B comprises a right conductive block body 5, the right part of the right conductive block body 5 is provided with a through connecting hole 2, the upper end surface of the right conductive block body 5 is provided with a right connecting bolt 6, the left part of the right conductive block body 5 is provided with a row of concave groove cavities 4, and the openings of the concave groove cavities 4 face to the left end; the concave slot cavity 4 of the left conductive block body 1 and the concave slot cavity 4 of the right conductive block body 5 are symmetrically arranged. The left connecting bolt 3 and the right connecting bolt 6 are used for connecting a measuring instrument.
The connector include a plurality of snakelike electric conductors 11, a plurality of snakelike electric conductors 11 arrange in proper order from beginning to end, the both ends of snakelike electric conductor 11 be equipped with left stuck bolt 8 and right stuck bolt 9, left stuck bolt 8 is located in left connecting plate A's spill slot cavity 4, right stuck bolt 9 is located in right connecting plate B's spill slot cavity 4. The length of the conductor is prolonged by the design of the snake-shaped conductor 11, so that the resistance value of the conductor is increased, and the measurement of large impact current is further met.
An elastic conductive gasket 12 is arranged around the opening circumference of the concave groove cavity 4, and the elastic conductive gasket 12 is a conductive plastic gasket or a conductive rubber gasket.
As shown in fig. 8, the concave slot cavities 4 are distributed on the upper portions of the left connecting plate a and the right connecting plate B, and are sequentially arranged from front to back in a straight shape. The concave slot cavity 4 is transversely arranged or vertically arranged (the invention gives a vertical arrangement schematic diagram), two end parts in the concave slot cavity 4 are respectively and fixedly provided with a conductive spring 13, and the free end of the conductive spring 13 is fixed with the left clamping bolt 8 or the right clamping bolt 9.
The invention has the advantages that:
1. the resistance value of the conductor is further increased by means of extending the length of the conductor, so that the measurement of large impact current is met.
2. By using the elastic conductive gasket 12, the connector is damaged by external vibration in an environment vibration environment, and plays a role in protecting and buffering vibration in vibration. At the same time, good electrical contact of the connector with the left and right connection plates a, B can be made.
3. An integrally formed structure is clamped by the concave groove cavity 4, the left clamping bolt 8 and the right clamping bolt 9, so that the connection firmness of the connector is guaranteed, meanwhile, two conductive springs 13 are fixedly arranged at two end parts in the concave groove cavity 4 respectively, and the free ends of the conductive springs 13 are fixed with the left clamping bolt 8 or the right clamping bolt 9; the conductive spring 13 is used for ensuring good electric contact between the left clamping bolt 8 or the right clamping bolt 9 and the left connecting plate A or the right connecting plate B; on the other hand, the connecting body is ensured to float up and down in a vibration environment, so that the connecting body is prevented from being damaged and can be restored even if the connecting body is restored.
The shunt of the invention can meet the requirements of required electrical property, mechanical property, temperature property and the like, and has strong vibration and impact resistance.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an impact current measures with anti vibration formula direct current shunt which characterized in that: the connecting body connects the left connecting plate and the right connecting plate into a whole; the left connecting plate comprises a left conductive block body, the left part of the left conductive block body is provided with a through connecting hole, the upper end face of the left conductive block body is provided with a left connecting bolt, the right part of the left conductive block body is provided with a row of concave groove cavities, the openings of the concave groove cavities face to the right end, and the left connecting plate and the right connecting plate are identical in structure and symmetrical; the right connecting plate comprises a right conductive block body, the right part of the right conductive block body is provided with a through connecting hole, the upper end surface of the right conductive block body is provided with a right connecting bolt, the left part of the right conductive block body is provided with a row of concave groove cavities which are arranged up and down, and the openings of the concave groove cavities face to the left end; the concave slot cavity of the left conductive block body and the concave slot cavity of the right conductive block body are symmetrically arranged.
2. The anti-vibration dc shunt for measuring a surge current according to claim 1, wherein: the connector comprises a plurality of spiral electric conductors which are sequentially arranged from top to bottom, a left clamping bolt and a right clamping bolt are arranged at two end parts of each spiral electric conductor, the left clamping bolt is arranged in a concave groove cavity of the left connecting plate, and the right clamping bolt is arranged in a concave groove cavity of the right connecting plate.
3. The anti-vibration dc shunt for measuring a surge current according to claim 1, wherein: the connector include a plurality of "mesh" font electric conductors, a plurality of "mesh" font electric conductors arrange by last under to in proper order, "mesh" font electric conductor include many horizontal guide arms of horizontal parallel arrangement and two vertical guide arms of longitudinal arrangement, the both ends of many horizontal guide arms are fixed in the pole body of two vertical guide arm corresponding faces respectively, the dorsad face of two vertical guide arms all is connected with left branch and supports the guide arm with the right branch perpendicularly, the left end of left branch supports the guide arm and is equipped with left side cotter, left side cotter is located the concave groove intracavity of left connecting plate, the right-hand member portion of right branch supports the guide arm and is equipped with right side cotter, right side cotter is located the concave groove intracavity of right connecting plate.
4. The anti-vibration dc shunt for measuring a surge current according to claim 1, wherein: the connector include a plurality of snakelike electric conductors, a plurality of snakelike electric conductors arrange in proper order from beginning to end, the both ends of snakelike electric conductor be equipped with left stuck bolt and right stuck bolt, left stuck bolt is located the concave groove intracavity of left connecting plate, right stuck bolt is located the concave groove intracavity of right connecting plate.
5. The anti-vibration type dc shunt for measuring a surge current according to any one of claims 1 to 4, wherein: an elastic conductive gasket is arranged around the opening circumference of the concave groove cavity.
6. The anti-vibration dc shunt for measuring a surge current according to claim 5, wherein: the elastic conductive gasket is a conductive plastic gasket or a conductive rubber gasket.
7. The anti-vibration type dc shunt for measuring a surge current according to any one of claims 1 to 4, wherein: the concave groove cavity is transversely or vertically arranged, two end parts in the concave groove cavity are respectively and fixedly provided with a conductive spring, and the free end of the conductive spring is fixed with the left clamping bolt or the right clamping bolt.
8. The anti-vibration type dc shunt for measuring a surge current according to any one of claims 1 to 3, wherein:
the concave slot cavities are arranged in sequence from top to bottom or in a structure smaller than a number from top to bottom.
9. The anti-vibration type direct current shunt for measuring a surge current according to any one of claims 1 and 4, wherein:
the concave groove cavities are distributed on the upper parts of the left connecting plate and the right connecting plate and are sequentially arranged from front to back to form a straight line shape.
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|---|---|---|---|
| CN201911272951.3A CN110927424B (en) | 2019-12-12 | 2019-12-12 | Anti-vibration type direct current shunt for measuring impact current |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911272951.3A CN110927424B (en) | 2019-12-12 | 2019-12-12 | Anti-vibration type direct current shunt for measuring impact current |
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| CN110927424B CN110927424B (en) | 2021-09-14 |
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Address after: No.21, Jinshui Garden Road, Zhengzhou City, Henan Province 450008 Patentee after: Henan Institute of Metrology and Testing Science Address before: No.21, Jinshui Garden Road, Zhengzhou City, Henan Province 450008 Patentee before: HENAN PROVINCE INSTITUTE OF METROLOGY |