CN213517282U

CN213517282U - Voltage detection device

Info

Publication number: CN213517282U
Application number: CN202021281503.8U
Authority: CN
Inventors: 赖宏文
Original assignee: Heyuan Woto Electronic Technology Co ltd
Current assignee: Heyuan Woto Electronic Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-06-22
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a power equipment technical field just discloses a voltage detection device, which comprises a rotating shaft, the pivot lateral wall bonds and has the balance bar, the welding of balance bar top has the pointer, the directional dial plate of pointer one end, leave the space between pointer and the dial plate, through pivot, damping fin, pointer, coil, shape of a hoof magnet and the utmost point palm that sets up, at the during operation electric current through the coil, then there is a parallel magnetic field between shape of a hoof magnet and the utmost point palm, wire when the coil has the electric current to pass through in the coil is the cutting motion at the magnetic field line, drive the pointer under the resistance of damping fin when the pivoted and rotate with this parameter that can obtain voltage at the dial plate, wherein such structural design can very extensive specially adapted high frequency alternating current voltage's of measuring current-voltage scope, has consequently improved the practicality of product.

Description

Voltage detection device

Technical Field

The utility model relates to a power equipment technical field specifically is a voltage detection device.

Background

Voltage refers to the work of electric field force moving unit positive charge in electric field from one point to another point and is called voltage, voltage measurement is an important content of electronic circuit measurement and is the basis of measurement of many electrical parameters, the measurable frequency range of voltage measurement is extremely wide, from direct current to gigahertz and even higher frequency, the range is large, can be from nano volt to up kilovolt, the accuracy is from tens of percent to ten thousandths, in voltage measurement, the voltage below one megahertz is often called low-frequency voltage, and the voltage above one megahertz is called high-frequency voltage, and the range of high-frequency voltage is generally divided into large voltage, medium voltage, small voltage and micro voltage.

At present, voltage detection device is when using, utilize the sensor to gather voltage signal, then adopt signal amplifier to amplify analog signal, although current voltage detection device can realize the effect to voltage detection, voltage detection device in-service use inside chip can be punctured by high voltage and arouse the damage, still can the electric leakage simultaneously, the electric leakage of electric current and then can lead to operating personnel's personal safety, cause operating personnel to be electrocuted, voltage detection device is when using simultaneously, can only detect the alternating current of low frequency, and the less direct current of voltage, detection range receives the restriction when operating personnel uses traditional voltage detection device to detect different voltages, thereby can influence operating personnel voltage detection's efficiency and cause the working schedule can't push forward, consequently, need improve it.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a voltage detection device, which has the advantages of wide voltage detection range and difficult damage of the internal structure by a motor, solves the problem that the voltage detection effect can be realized in the actual use process of the prior voltage detection device, but the internal chip of the voltage detection device can be damaged by high voltage breakdown in practical use, meanwhile, the leakage of current can further cause the personal safety of operators and cause the operators to be killed by electric shock, meanwhile, when the voltage detection device is used, only low-frequency alternating current and direct current with smaller voltage can be detected, the detection range is limited when the operator detects different voltages using the conventional voltage detection apparatus, therefore, the efficiency of voltage detection of an operator can be influenced, the work progress cannot be pushed forward, and the problem of slow work progress can be influenced.

The utility model provides a following technical scheme: the utility model provides a voltage detection device, includes the pivot, the pivot lateral wall bonds and has the balancing stick, the welding of balancing stick top has the pointer, the directional dial plate of pointer one end, leave the space between pointer and the dial plate.

Preferably, the hairspring is sleeved on the side wall of the rotating shaft, and the damping fin is sleeved on the side wall of the rotating shaft.

Preferably, the side wall of the rotating shaft is wound with a first coil, and the tail end of the first coil is welded with a secondary coil.

Preferably, the side wall of the rotating shaft is welded with a fixed iron sheet, and the side wall of the fixed iron sheet is contacted with the pole palm.

Preferably, the horseshoe-shaped magnet is bonded to the side wall of the pole palm, and the moving iron sheet is sleeved on the side wall of the rotating shaft.

Preferably, the secondary coil is wound on one end of the iron core, the other end of the iron core is wound on the primary coil, a contact is welded at the input end of the primary coil, the output end of the secondary coil is connected with a capacitor in parallel, the iron core is bonded inside the clamping rod, and a wrench is bonded on the side wall of the clamping rod.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this voltage detection device, through the pivot that sets up, the damping fin, the pointer, the coil, shape of a hoof magnet and utmost point palm, at during the during operation electric current through the coil, then there is a parallel magnetic field between shape of a hoof magnet and the utmost point palm, wire when the coil has the electric current to pass through in the coil is the cutting motion at the magnetic field line, then receive an effort drive pivot and rotate, drive the pointer under the resistance of damping fin when the pivoted and rotate the parameter that can obtain voltage with this at the dial plate rotation, when no electric current passes through, then bring the pointer back to the original point under the effect of balancing bar again, wherein the very extensive detection that is particularly suitable for high frequency alternating current voltage of current voltage scope that such structural design can measure, consequently, the practicality of product has been improved.

2. This voltage detection device, contact through setting up, primary, electric capacity, secondary and iron core, will be surveyed the electric pressure through the contact and go into primary when the staff uses the device, then primary winds connects at the iron core lateral wall, because the magnetic field change that the coil produced, then magnetic field can be to secondary do the cutting motion then secondary produces the electric current, the electric current carries to first coil through the wire after the electric capacity filters, can effectually detect high voltage alternating current and direct current through such setting and make the detection range become wider, the personal safety of detection personnel has also been ensured simultaneously, consequently, further increase this voltage detection device's practicality.

Drawings

Fig. 1 is a schematic diagram showing an exploded structure of the present invention;

FIG. 2 is a schematic sectional view of an input portion of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the clamping rod of the present invention.

In the figure: 1. a rotating shaft; 2. a balance spring; 3. a pointer; 4. a damping fin; 5. a dial plate; 6. a horseshoe-shaped magnet; 7. a polar palm; 8. a first coil; 9. fixing iron sheets; 10. a moving iron sheet; 11. a balancing bar; 12. a primary coil; 13. a contact head; 14. an iron core; 15. a secondary coil; 16. a capacitor; 17. a clamping bar; 18. a wrench.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-3, a voltage detecting device includes a rotating shaft 1, a torsion can be provided for the whole device through the rotating shaft 1, so that a pointer 3 rotates through the friction of a damping plate 4, a balance bar 11 is bonded on the side wall of the rotating shaft 1, the pointer 3 can be pulled back to the zero scale position when no current flows through the balance bar 11, the pointer 3 is welded on the top end of the balance bar 11, a first coil 8 is wound on the side wall of the rotating shaft 1, a secondary coil 15 is welded on the tail end of the first coil 8, a horseshoe magnet 6 is bonded on the side wall of a pole palm 7, a parallel magnetic field can be provided for the first coil 8 through the horseshoe magnet 6, so that the first coil 8 performs cutting movement in the magnetic field to generate the torsion, an iron plate 10 is sleeved on the side wall of the rotating shaft 1, one end of the pointer 3 points to a dial 5, an operator can timely observe what the measured voltage is through the dial 5, thereby help the user of service to make the selection, leave the space between pointer 3 and the dial plate 5, 1 lateral wall of pivot has cup jointed balance spring 2, 1 lateral wall of pivot has cup jointed damping fin 4, 1 lateral wall welding of pivot has decided iron sheet 9, it contacts with utmost point palm 7 to decide iron sheet 9 lateral wall, secondary coil 15 round joint is in iron core 14 one end, iron core 14 other end round joint has primary coil 12, the welding of primary coil 12 input has contact 13, contact 13 through the setting can effectually prevent that voltage from directly adding to the human body and leading to operating personnel to shock by electricity the death, secondary coil 15 output connects in parallel has electric capacity 16, iron core 14 bonds inside clip 17, clip 17 lateral wall bonds has spanner 18.

When the device works, an operator firstly accesses the contact head 13 to the measured voltage position and then affects the change of the magnetic flux of the secondary coil 15 through the change of the magnetic flux generated by the primary coil 12 wound on the side wall of the iron core 14, the iron core 14 is arranged inside the clamping rod 17, the side wall of the clamping rod 17 is bonded with the wrench 18, thereby the personal safety of the detection personnel is protected, the current generated by the secondary coil 15 is filtered out noise waves through the filtering action of the capacitor 16 and then is transmitted to the first coil 8 through a lead, the first coil 8 enables the rotating shaft 1 to generate the change of torsion under the parallel magnetic field of the pole palm 7 and the horseshoe-shaped magnet 6 so as to drive the rotating damping sheet 4 of the damping sheet 4 to drive the pointer 3 to rotate through the friction force, the rotation of the pointer 3 can observe the parameter of the measured voltage through the dial 5, and then the pointer 3 is pulled back to the zero scale position of the, can prevent through setting up of hairspring 2 that pivot 1 from controlling and rock, also can protect pointer 3 to have the clearance when rotating to cause voltage parameter to have the error simultaneously, can protect pivot 1 at utmost point palm 7 lateral walls through deciding iron sheet 9, the shake that produces when preventing to rotate can influence the parameter, pivot 1 can produce an angle when rotating in the protection of setting up of moving iron sheet 10, then decide iron sheet 9 can not protect pivot 1, can improve voltage detection device's precision through having set up moving iron sheet 10.

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.

Claims

1. A voltage detection device comprises a rotating shaft (1), and is characterized in that: a balance rod (11) is bonded on the side wall of the rotating shaft (1), a pointer (3) is welded at the top end of the balance rod (11), one end of the pointer (3) points to the dial (5), and a gap is reserved between the pointer (3) and the dial (5); a first coil (8) is wound on the side wall of the rotating shaft (1), and a secondary coil (15) is welded at the tail end of the first coil (8); a fixed iron sheet (9) is welded on the side wall of the rotating shaft (1), and the side wall of the fixed iron sheet (9) is in contact with the polar palm (7); a horseshoe-shaped magnet (6) is bonded on the side wall of the polar palm (7), and a moving iron sheet (10) is sleeved on the side wall of the rotating shaft (1); secondary coil (15) wraparound is in iron core (14) one end, iron core (14) other end wraparound has primary coil (12), the welding of primary coil (12) input has contact (13), secondary coil (15) output is parallelly connected to have electric capacity (16), iron core (14) bond inside clamp bar (17), clamp bar (17) lateral wall bonds and has spanner (18).

2. A voltage detection device according to claim 1, wherein: the hairspring (2) is sleeved on the side wall of the rotating shaft (1), and the damping fin (4) is sleeved on the side wall of the rotating shaft (1).