CN219535637U - Voltage sag protection device - Google Patents

Abstract

The utility model relates to the technical field of voltage regulators, in particular to a voltage sag protection device. The technical proposal comprises: the device comprises a voltage stabilizer shell, wherein an induction coil is arranged in the voltage stabilizer shell, a screw rod is rotationally connected to the voltage stabilizer shell, the screw rod is driven to rotate by a servo motor, a sliding block is connected to the screw rod in a threaded manner, a carbon brush is fixed on the sliding block, and the end part of the carbon brush is contacted with the outer side of the induction coil. The utility model uses the servo motor in the voltage stabilizer to drive the screw rod to rotate, thereby changing the position of the carbon brush on the induction coil, changing the turn ratio of the induction coil, realizing the purpose of stabilizing the circuit voltage, protecting the electric appliance.

Description

Voltage sag protection device

Technical Field

The utility model relates to the technical field of voltage regulators, in particular to a voltage sag protection device.

Background

The voltage stabilizer is a protection device which is arranged in a power supply circuit and used for temporarily reducing or boosting the voltage of an unstable circuit, the internal voltage detection device is used for controlling the servo motor to rotate, so that the carbon brush is driven to move on the induction coil, the turn ratio of the induction coil is changed, certain boosting and reducing operations are finished, the voltage stability of an electric appliance can be effectively ensured, and the purpose of protecting the electric appliance is realized.

However, when carrying out the motion of carbon brush, can drive the movable cable of connection at the carbon brush and carry out synchronous motion, in the narrow and small space of stabiliser shell, if do not have the structure that protects the cable motion, other electronic component inside the shell can be touched to the very likely, the condition that the winding is knocked with appears even, lead to the broken circuit that the end of a thread drops and cause, can utilize soldering or binding post to fix between carbon brush and the cable generally simultaneously, under bearing certain pulling force, the condition that junction broken line appears easily, finally cause transmission circuit to break, consequently, need set up the structure that is used for movable cable protection in the stabiliser shell, avoid carbon brush and movable cable junction to bear the pulling force simultaneously, in order to guarantee the normal work of stabiliser.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a voltage sag protection device.

The technical scheme of the utility model is as follows: the utility model provides a voltage sag protection device, includes the stabiliser shell, install induction coil in the stabiliser shell, stabiliser shell internal rotation is connected with the lead screw, the lead screw passes through servo motor drive and rotates, threaded connection has the sliding block on the lead screw, be fixed with the carbon brush on the sliding block, the carbon brush tip contacts with the induction coil outside, stabiliser shell lateral wall fixedly connected with two terminal boxes, be fixed with movable cable between carbon brush and one of them terminal box, install fixed cable between induction coil and the other terminal box, fixedly connected with guard box in the stabiliser shell, movable cable is located the guard box, guard box is close to carbon brush one side sliding connection and is synchronous slider, movable cable passes synchronous slider and with synchronous slider fixed connection, be provided with drive mechanism between synchronous slider and the lead screw, install voltage detection appearance and controller in the stabiliser shell, the controller is connected with the servo motor electricity.

Preferably, the transmission mechanism comprises a wire wheel and a driving bevel gear, the wire wheel is rotationally connected with the side wall at the upper end of the protection box through a fixed rotating shaft, the driving bevel gear is fixed on the screw rod and aligned with the fixed rotating shaft, the end part of the fixed rotating shaft penetrates through the protection box and is fixedly connected with a driven bevel gear, the driving bevel gear is meshed with the driven bevel gear, a pull rope is wound on the wire wheel, and the end part of the pull rope is fixed on the synchronous sliding block.

Preferably, the front groove is formed in the protection box and corresponds to the synchronous sliding block, the movable cable penetrates through the front groove, a pair of limiting blocks are fixedly connected to the synchronous sliding block, the limiting blocks are slidably connected in the front groove, and the limiting blocks can ensure that the synchronous sliding block can only vertically slide on the inner side wall of the protection box.

Preferably, the movable cable is located the U-shaped distribution in the guard box, the fixed pulleys are all installed to guard box and be located the guard cable corner, the movable cable passes the fixed pulleys, can avoid the movable cable corner to receive wearing and tearing to guarantee that the movable cable can only carry out the straight line and stretch out and draw back.

Preferably, the movable cable is provided with a spring wire tube structure in the protection box, so that the movable cable can be ensured to stretch and retract in the protection box, and simultaneously, after the movable cable is stretched, a downward pulling force can be provided for the synchronous sliding block.

Compared with the prior art, the utility model has the following beneficial technical effects: the servo motor in the voltage stabilizer is utilized to drive the screw rod to rotate, so that the position of the carbon brush on the induction coil is changed, the turn ratio of the induction coil is changed, the purpose of stabilizing circuit voltage is realized, protection is realized for an electric appliance, in the process, the transmission mechanism can be utilized to drive the pull rope to roll, the synchronous sliding block and the carbon brush are pulled to synchronously move, the wiring position of the carbon brush and the movable cable cannot be pulled, and the condition that the connecting position is disconnected is avoided.

Drawings

FIG. 1 is a schematic view of the front cut-away structure of the present utility model;

FIG. 2 is a schematic view of the appearance structure of the protection box of the present utility model;

FIG. 3 is a schematic view of the appearance structure of the synchronous slide block of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Reference numerals: 1. a voltage regulator housing; 11. an induction coil; 12. a screw rod; 13. a servo motor; 14. a sliding block; 15. a carbon brush; 16. a movable cable; 17. fixing the cable; 18. a voltage detector; 19. a controller; 2. a protection box; 21. a fixed pulley; 22. a synchronous slide block; 23. a front groove; 24. a limiting block; 3. a transmission mechanism; 31. a wire wheel; 32. a pull rope; 33. a driving bevel gear; 34. fixing the rotating shaft; 35. driven bevel gears.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-4, the voltage sag protection device provided by the utility model comprises a voltage stabilizer shell 1, an induction coil 11 is installed in the voltage stabilizer shell 1, a lead screw 12 is rotationally connected to the voltage stabilizer shell 1, the lead screw 12 is driven to rotate by a servo motor 13, a sliding block 14 is connected to the lead screw 12 in a threaded manner, a carbon brush 15 is fixed to the sliding block 14, the end part of the carbon brush 15 is contacted with the outer side of the induction coil 11, two junction boxes are fixedly connected to the outer side wall of the voltage stabilizer shell 1, a movable cable 16 is fixed between the carbon brush 15 and one of the junction boxes, a fixed cable 17 is installed between the induction coil 11 and the other junction box, a protection box 2 is fixedly connected to the inside of the voltage stabilizer shell 1, the movable cable 16 is positioned in the protection box 2, a synchronous slide 22 is connected to one side of the protection box 2 close to the side of the synchronous slide 22 in a sliding manner, the movable cable 16 passes through the synchronous slide 22 and is fixedly connected with the synchronous slide 22, a transmission mechanism 3 is arranged between the synchronous slide 22 and the lead screw 12, a voltage detector 18 and a controller 19 is installed in the voltage stabilizer shell 1, the controller 19 is electrically connected with the servo motor 13, the movable cable 16 is positioned in the protection box 2, a U-shaped distribution box 2 is fixedly connected to the movable cable 16, a limit block 21 is fixedly arranged in the protection box and a front of the corresponding position of the protection box 23, and the front of the protection box 23 is fixedly connected to the movable cable 23, and the limit block 23 is fixedly connected to the movable cable 16 is positioned in the front of the synchronous box 23, and the corresponding position 23, and the front of the protection box is fixedly connected to the movable cable 22, and the front end 23 has a position in the position of the movable limit block and the movable box 23, and the limit block is in the position 23, and the front the position 23 is connected to the movable box and the movable box has the movable cable has the movable limit block and the movable limit box and the drive has the drive and the drive device.

The transmission mechanism 3 comprises a wire wheel 31 and a driving bevel gear 33, the wire wheel 31 is rotationally connected with the side wall at the upper end of the protection box 2 through a fixed rotating shaft 34, the driving bevel gear 33 is fixed on the screw rod 12 and aligned with the fixed rotating shaft 34, the end part of the fixed rotating shaft 34 penetrates through the protection box 2 and is fixedly connected with a driven bevel gear 35, the driving bevel gear 33 is meshed with the driven bevel gear 35, a pull rope 32 is wound on the wire wheel 31, the end part of the pull rope 32 is fixed on the synchronous slide block 22, the screw rod 12 rotates to drive the driving bevel gear 33 to synchronously rotate, at the moment, the fixed rotating shaft 34 and the wire wheel 31 can be driven to rotate by utilizing the transmission of the driven bevel gear 35, the winding and unwinding operation of the pull rope 32 is finally realized, the synchronous slide block 22 can be pulled upwards when the pull rope 32 is wound, and conversely, the pull rope 32 can downwards move under the gravity action of the synchronous slide block 22.

In this embodiment, the voltage stabilizer is firstly installed on the power supply line, so that the current is transmitted to the induction coil 11 through the movable cable 16 and is transmitted to the fixed cable 17 through electromagnetic induction, thereby forming a series circuit, in the process, if the voltage is reduced, the voltage detector 18 can monitor in time, and the detection signal is transmitted to the controller 19, so that the servo motor 13 is controlled to work, thereby driving the screw rod 12 to rotate, the carbon brush 15 moves on the surface of the induction coil 11, the coil turn ratio in the electromagnetic induction is changed, thereby realizing the purpose of boosting, effectively ensuring the voltage stability of the power supply circuit, realizing the purpose of protecting the electric appliances, simultaneously, in the process of driving the carbon brush 15 to move up and down through the rotation of the screw rod 12, the driving bevel gear 33 can be driven to synchronously rotate, at this time, the driven bevel gear 35 is utilized to drive the fixed rotating shaft 34 and the wire wheel 31 to rotate, so that the winding and paying-off operation of the pull rope 32 is finally realized, the synchronous sliding block 22 can be pulled and lifted when the pull rope 32 is wound, otherwise, the synchronous sliding block 22 of the carbon brush 15 can move downwards under the gravity action of the synchronous sliding block 22, and the synchronous movement of the synchronous sliding block 22 of the carbon brush 15 is ensured, so that the pulling acting force of the movable cable 16 is directly applied to the movable cable 16, the connection part of the movable cable 16 and the carbon brush 15 is not pulled, the wiring stability is ensured, meanwhile, the movable cable 16 is completely positioned in the protection box 2 in the whole movement process of the movable cable 16, the condition that the movable cable 16 collides with other electronic elements in the voltage stabilizer shell 1 is not caused, and the working safety of the voltage stabilizer is further ensured.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (5)

1. The utility model provides a voltage sag protection device, includes stabiliser shell (1), install induction coil (11) in stabiliser shell (1), stabiliser shell (1) internal rotation is connected with lead screw (12), lead screw (12) are through servo motor (13) drive rotation, threaded connection has sliding block (14) on lead screw (12), be fixed with carbon brush (15) on sliding block (14), carbon brush (15) tip contacts with induction coil (11) outside, its characterized in that: the novel high-voltage power supply is characterized in that two junction boxes are fixedly connected to the outer side wall of the voltage stabilizer shell (1), a movable cable (16) is fixed between the carbon brush (15) and one junction box, a fixed cable (17) is installed between the induction coil (11) and the other junction box, a protection box (2) is fixedly connected to the inside of the voltage stabilizer shell (1), the movable cable (16) is located in the protection box (2), a synchronous sliding block (22) is slidingly connected to one side of the protection box (2) close to the carbon brush (15), the movable cable (16) penetrates through the synchronous sliding block (22) and is fixedly connected with the synchronous sliding block (22), a transmission mechanism (3) is arranged between the synchronous sliding block (22) and the screw rod (12), a voltage detector (18) and a controller (19) are installed in the voltage stabilizer shell (1), and the controller (19) is electrically connected with the servo motor (13).

2. A voltage sag protection device according to claim 1, characterized in that the transmission mechanism (3) comprises a wire wheel (31) and a driving bevel gear (33), the wire wheel (31) is rotatably connected with the upper end side wall of the protection box (2) through a fixed rotating shaft (34), the driving bevel gear (33) is fixed on the screw rod (12) and aligned with the fixed rotating shaft (34), the end part of the fixed rotating shaft (34) penetrates through the protection box (2) and is fixedly connected with a driven bevel gear (35), the driving bevel gear (33) is meshed with the driven bevel gear (35), a pull rope (32) is wound on the wire wheel (31), and the end part of the pull rope (32) is fixed on the synchronous sliding block (22).

3. The voltage sag protection device according to claim 1, wherein a front groove (23) is formed in the protection box (2) and corresponds to the synchronous sliding block (22), the movable cable (16) penetrates through the front groove (23), a pair of limiting blocks (24) are fixedly connected to the synchronous sliding block (22), and the limiting blocks (24) are slidably connected in the front groove (23).

4. A voltage sag protection device according to claim 1, characterized in that the movable cables (16) are located in a U-shaped distribution in the protection box (2), fixed pulleys (21) are installed in the protection box (2) and located at the corners of the protection cables, and the movable cables (16) pass through the fixed pulleys (21).

5. A voltage sag protection device according to claim 1, characterized in that the movable cable (16) is provided with a spring wire tube structure inside the protection box (2).