阅读说明：本技术 一种用于电路测量的电流表自动校准机构 (Ammeter automatic calibration mechanism for circuit measurement ) 是由 阙庆佳 于 2020-07-07 设计创作，主要内容包括：本发明涉及电路技术领域,且公开了一种用于电路测量的电流表自动校准机构,包括外壳,所述外壳的正面活动连接有接线柱一。该用于电路测量的电流表自动校准机构,当电流表不通电时,此时电磁装置带电会吸引电磁块使得齿轮二复位,此时齿轮一跟随齿轮二复位,又因为齿轮一通过固定盘与表针固定连接,所以此时表针会复位,从而达到了自动校准表针角度偏移的效果。当电流表通电后,螺线管的两端会通电,根据安培第二定律可知此时螺线管会吸引S极磁球,使得S极磁球向下运动,进一步使得导线二断路,再进一步使得电磁装置不带电,此时电磁装置不再对电磁块有力的作用,从而达到了电流表表针正常偏转的效果。(The invention relates to the technical field of circuits and discloses an ammeter automatic calibration mechanism for circuit measurement. This an ampere meter automatic calibration mechanism for circuit measurement, when the ampere meter is not electrified, electromagnetic means electrified can attract electromagnetism piece to make two gears reset this moment, and two gears of gear follow reset this moment, because the gear is first through fixed disk and table needle fixed connection again, so the table needle can reset this moment to the effect of automatic calibration table needle angular deflection has been reached. After the ammeter circular telegram, the both ends of solenoid can be circular telegram, can know according to ampere second law that solenoid can attract S utmost point magnetic ball this moment for S utmost point magnetic ball downstream further makes wire two open a way, and further makes electromagnetic means uncharged again, and electromagnetic means is no longer to the powerful effect of electromagnetism piece this moment, thereby has reached the effect that ammeter table needle normally deflected.)

1. An ammeter automatic calibration mechanism for circuit measurement, includes shell (1), its characterized in that: the front swing joint of shell (1) has terminal one (2), the front swing joint of shell (1) has terminal two (3), the front swing joint of shell (1) has table needle (4), the right side fixedly connected with fixed disk (5) of table needle (4), the right side swing joint of terminal one (2) has wire one (6), the inside fixedly connected with solenoid (7) of wire one (6), the bottom fixedly connected with gear one (8) of fixed disk (5), the outside threaded connection of gear one (8) has gear two (9), the front fixedly connected with electromagnetism piece (10) of gear two (9), the inside fixedly connected with electromagnetic means (11) of shell (1), the right side fixedly connected with wire two (12) of electromagnetic means (11), the inside fixedly connected with power module (13) of wire two (12), the inside fixedly connected with disc (14) of shell (1), chute (15) have been seted up to the inside of disc (14), the inside fixedly connected with spring (16) of chute (15), one side fixedly connected with S utmost point magnetic ball (17) of chute (15) are kept away from in spring (16).

2. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: the first wiring terminal (2) is a circuit anode contact, and the second wiring terminal (3) is a circuit cathode contact.

3. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: and two ends of the solenoid (7) are movably connected with the first binding post (2) and the second binding post (3) through a first lead (6).

4. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: the main material of the electromagnetic block (10) is a nickel-chromium alloy material.

5. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: two ends of the electromagnetic device (11) are movably connected with two ends of the power module (13) through a second lead (12), and the electromagnetic device (11) is arranged right below the electromagnetic block (10).

6. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: and the bottom of the right side of the second lead (12) is provided with a broken joint which is connected through an S-pole magnetic ball (17).

7. An ammeter auto-calibration mechanism for circuit measurements as defined in claim 1, wherein: the outer side of the S pole magnetic ball (17) is conductive, and the S pole magnetic ball (17) is arranged above the left side of the solenoid (7).

Technical Field

The invention relates to the technical field of circuits, in particular to an ammeter automatic calibration mechanism for circuit measurement.

Background

The circuit is a conductive loop consisting of a metal wire and electrical and electronic components, and is called a circuit. The power supply is added to the input end of the circuit to enable the input end to generate potential difference, and the circuit can work when being communicated. The presence of current can be measured by an ammeter, which is generally divided into two categories according to the nature of the current flowing through: the circuit through which the direct current passes is called a direct current circuit, and the circuit through which the alternating current passes is called an alternating current circuit.

The ammeter is used for measuring the current in an alternating current circuit and a direct current circuit, when the ammeter is used for circuit measurement, the ammeter depends on the action of a magnetic field force applied to an electrified conductor in a magnetic field, so that a meter needle is driven to rotate, the direction of the meter needle is often deviated after a period of time due to the fact that the meter needle of the ammeter is often rotated in the process of measuring the circuit, the indication of the meter needle is inaccurate, measurement errors are caused, the judgment of people is influenced, and how to automatically calibrate the angle deviation of the meter needle becomes an important problem, so that the ammeter automatic calibration mechanism for circuit measurement is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic calibration mechanism of an ammeter for circuit measurement, which has the advantage of automatically calibrating the angular offset of a pointer, and solves the problem of inaccurate pointer indication and measurement error caused by frequent rotation of the pointer and frequent offset of the pointer direction after a period of time in the process of measuring a circuit by the ammeter.

(II) technical scheme

In order to achieve the purpose of automatically calibrating the angle deviation of the pointer, the invention provides the following technical scheme: an ammeter automatic calibration mechanism for circuit measurement comprises a shell, wherein the front of the shell is movably connected with a first binding post, the front of the shell is movably connected with a second binding post, the front of the shell is movably connected with a meter needle, the right side of the meter needle is fixedly connected with a fixed disc, the right side of the first binding post is movably connected with a first wire, the inside of the first wire is fixedly connected with a solenoid, the bottom of the fixed disc is fixedly connected with a first gear, the outer side of the first gear is in threaded connection with a second gear, the front of the second gear is fixedly connected with an electromagnetic block, the inside of the shell is fixedly connected with an electromagnetic device, the right side of the electromagnetic device is fixedly connected with a second wire, the inside of the second wire is fixedly connected with a power module, the inside of the shell is fixedly connected with a disk, the inside of the disk is, and one side of the spring, which is far away from the inclined groove, is fixedly connected with an S-pole magnetic ball.

Preferably, the first terminal is a positive terminal of the circuit, and the second terminal is a negative terminal of the circuit.

Preferably, two ends of the solenoid are movably connected with the first binding post and the second binding post through a first lead.

Preferably, the main material of the electromagnet block is a nickel-chromium alloy material.

Preferably, two ends of the electromagnetic device are movably connected with two ends of the power module through a second conducting wire, and the electromagnetic device is arranged right below the electromagnetic block.

Preferably, the bottom of the right side of the second lead is provided with a break interface, and the break interface is connected through an S-pole magnetic ball.

Preferably, the outer side of the S-pole magnetic ball is conductive, and the S-pole magnetic ball is above the left side of the solenoid.

(III) advantageous effects

Compared with the prior art, the invention provides an ammeter automatic calibration mechanism for circuit measurement, which has the following beneficial effects:

1. this an ampere meter automatic calibration mechanism for circuit measurement uses through the cooperation of table needle and gear one, gear two, electromagnetic means, electromagnetism piece, fixed disk, and when the ampere meter was not electrified, electromagnetic means electrified can attract electromagnetism piece to make gear two reset this moment, and gear one was followed gear two and is reset this moment, because gear one again through fixed disk and table needle fixed connection, so the table needle can reset this moment to the effect of automatic calibration table needle angular deviation has been reached.

2. This an ampere meter automatic calibration mechanism for circuit measurement, through solenoid and wire two, S utmost point magnetic ball, electromagnetic means, the cooperation of electromagnetism piece is used, after the ampere meter circular telegram, the both ends of solenoid can the circular telegram, can know according to ampere second law that the solenoid can attract S utmost point magnetic ball this moment, make S utmost point magnetic ball downstream, further make wire two open circuit, it is uncharged to further make electromagnetic means again, electromagnetic means is no longer to the powerful effect of electromagnetism piece this moment, thereby the effect that the ampere meter pointer normally deflected has been reached.

Drawings

FIG. 1 is a schematic cross-sectional view of a top view of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention;

FIG. 4 is a schematic diagram of an electromagnetic apparatus according to the present invention.

In the figure: 1. a housing; 2. a binding post I; 3. a second wiring terminal; 4. a pointer; 5. fixing the disc; 6. a first lead; 7. a solenoid; 8. a first gear; 9. a second gear; 10. an electromagnetic block; 11. an electromagnetic device; 12. a second conducting wire; 13. a power supply module; 14. a disc; 15. a chute; 16. a spring; 17. and an S pole magnetic ball.

Detailed Description

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.

Referring to fig. 1-4, an ammeter automatic calibration mechanism for circuit measurement comprises a housing 1, a first binding post 2 is movably connected to the front of the housing 1, a second binding post 3 is movably connected to the front of the housing 1, the first binding post 2 is a circuit positive electrode contact, the second binding post 3 is a circuit negative electrode contact, a meter hand 4 is movably connected to the front of the housing 1, a fixed disk 5 is fixedly connected to the right side of the meter hand 4, a first lead 6 is movably connected to the right side of the first binding post 2, a solenoid 7 is fixedly connected to the inside of the first lead 6, two ends of the solenoid 7 are movably connected to the first binding post 2 and the second binding post 3 through the first lead 6, a first gear 8 is fixedly connected to the bottom of the fixed disk 5, a second gear 9 is connected to the outer side of the first gear 8 through a screw thread, a second electromagnetic block 10 is fixedly connected to the front of, the inside fixedly connected with electromagnetic means 11 of shell 1, two 12 on electromagnetic means 11 ' S the right side fixedly connected with wire, the inside fixedly connected with power module 13 of two 12 of wire, two 12 and power module 13 ' S both ends swing joint is passed through at electromagnetic means 11 ' S both ends, electromagnetic means 11 is under electromagnetism piece 10, the inside fixedly connected with disc 14 of shell 1, chute 15 has been seted up to disc 14 ' S inside, chute 15 ' S inside fixedly connected with spring 16, one side fixedly connected with S utmost point magnetic ball 17 of chute 15 is kept away from to spring 16, there is a disconnected interface wire two 12 ' S right side bottom, this disconnected interface passes through S utmost point magnetic ball 17 and connects, S utmost point magnetic ball 17 ' S the outside is electrically conductive, S utmost point magnetic ball 17 is in the left top of solenoid 7.

The working principle is that when an ammeter disconnects a measuring circuit, when the direction of a pointer 4 deviates, the fixed disc 5 is fixedly connected to the right side of the pointer 4, so that the direction of the fixed disc 5 also deviates, the first gear 8 is fixedly connected to the bottom of the fixed disc 5, so that the first gear 8 rotates, the second gear 9 is connected to the outer side of the first gear 8 through threads, so that the second gear 9 also rotates, the electromagnetic block 10 is fixedly connected to the front side of the second gear 9, so that the position of the electromagnetic block 10 deviates, because two ends of an electromagnetic device 11 are movably connected with two ends of a power module 13 through a second wire 12, a break port is arranged at the bottom of the right side of the second wire 12, the break port is connected through an S-pole magnetic ball 17, so that the electromagnetic device 11 is powered on, and because the electromagnetic device 11 is arranged at the bottom of the electromagnetic block 10, the main material of electromagnetism piece 10 is a nichrome material, so electromagnetic means 11 can attract electromagnetism piece 10 this moment for two 9 resets of gear, further drive one 8 resets of gear, thereby drive table needle 4 and reset, thereby reached the effect of automatic calibration table needle 4 angular deflection. When the ammeter is powered on, because two ends of the solenoid 7 are movably connected with the first binding post 2 and the second binding post 3 through the first conducting wire 6, the first binding post 2 is a circuit positive pole contact, the second binding post 3 is a circuit negative pole contact, at this time, current can pass through the inside of the solenoid 7, the left side of the solenoid 7 at this time shows N pole magnetism according to the Ampere 'S second law', and because the S pole magnetic ball 17 is arranged above the left side of the solenoid 7, at this time, the solenoid 7 can attract the S pole magnetic ball 17, so that the S pole magnetic ball 17 moves downwards, because the bottom of the right side of the second conducting wire 12 is provided with a break interface, the break interface is connected through the S pole magnetic ball 17, at this time, the second conducting wire 12 is broken, so that the electromagnetic device 11 is not electrified, the electromagnetic block 10 cannot be attracted, at this time, the ammeter needle 4 is not influenced by deflection, and after the circuit is broken, the, and conducting the second lead 12, further electrifying the electromagnetic device 11, and thus playing a role of continuously calibrating the pointer 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.