CN216959681U

CN216959681U - Automatic change outdoor transformer rectifier of warning

Info

Publication number: CN216959681U
Application number: CN202122707122.2U
Authority: CN
Inventors: 刘联兵
Original assignee: Jiangsu Epson New Energy Technology Co ltd
Current assignee: Jiangsu Epson New Energy Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-07-12
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses an outdoor transformer rectifier capable of automatically alarming, and relates to the technical field of rectifiers. The rectifier comprises a rectifier body, wherein a main body control circuit, a current sampling circuit, an MPPT sampling circuit, an undervoltage overcurrent protection circuit, a temperature sampling circuit, an acousto-optic alarm circuit, an aluminum substrate and a fan radiator are sequentially arranged in the rectifier body. This automatic outdoor transformer rectifier of reporting to police, adopt the high-speed singlechip of Atmega16, realized that the internal integration is regularly, the counter function, utilize the quick PWM function of timer T/C2, realize the production of SPWM signal, adopt the input capture function of T/C1, frequency phase place monitoring and tracking and the detection and the control of physical quantities such as distortion factor, input voltage, output current, temperature have been realized, monitor and report to the police various trouble, and utilize the technique that fan and natural cooling combined together, have and effectively reduce equipment volume and weight, be favorable to the heat dissipation, the reliability is high.

Description

Automatic change outdoor transformer rectifier of warning

Technical Field

The utility model relates to the technical field of rectifiers, in particular to an outdoor transformer rectifier capable of automatically alarming.

Background

The rectifier is a rectifier device, which is a device for converting alternating current into direct current, and can be used for a power supply device, a radio signal detection and the like, and the rectifier is a rectifier device, namely a device for converting alternating current into direct current, and has the main function of converting alternating current into direct current, and the direct current is supplied to a load after filtering or an inverter, and then a charging voltage is supplied to a storage battery, so that the rectifier also has the function of a charger.

For the fault of the rectifier, the fault point is judged by using a hand touch detection method after the fault occurs, the hand touch detection method is used for touching the shell of a suspicious diode by fingers, if the temperature of the diode shell is sensed to be too high, even the diode shell is hot, the situation that the diode is broken down or even leaks electricity is indicated, the hand touch detection method is difficult to remove the fault in time, and the mode is too lagged, so that the work is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides an outdoor transformer rectifier capable of automatically alarming, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an automatic change outdoor transformer rectifier of warning, includes the rectifier organism, install main part control circuit, current sampling circuit, MPPT sampling circuit, under-voltage overcurrent protection circuit, temperature sampling circuit, audible and visual alarm circuit, aluminium base board and fan radiator in the rectifier organism in proper order, current sampling circuit, MPPT sampling circuit, under-voltage overcurrent protection circuit, temperature sampling circuit, audible and visual alarm circuit and fan radiator all with main part control circuit electric connection, the one side of aluminium base board is attached on the fan radiator, and the another side is attached on the rectifier module of rectifier.

Further, the rectifier body comprises an aluminum extrusion shell and side sealing covers, and the side sealing covers are installed on two sides of the aluminum extrusion shell through screws.

Furthermore, the bottom of the aluminum extrusion machine shell is provided with a mounting cavity, and the fan radiator is fixed in the mounting cavity.

Furthermore, a through hole is formed in the top of the mounting cavity, and the aluminum substrate penetrates into the aluminum extruder shell from the through hole.

Furthermore, the inside equipartition of side closing cap has the backing plate, main part control circuit, current sampling circuit, MPPT sampling circuit, under-voltage overcurrent protection circuit, temperature sampling circuit and audible-visual alarm circuit are fixed in on the backing plate in proper order.

Furthermore, the main body control circuit adopts an Atmega16 singlechip, sine waves with the same frequency and the same phase as the reference signals are subjected to SPWM modulation, sine wave pulse width modulation signals are output, amplified by a driving circuit, and drive an H-bridge power tube to work, and sine wave currents with the same phase and the same frequency as the reference signals are generated through a filter and a power frequency transformer.

Compared with the prior art, the utility model provides an outdoor transformer rectifier capable of automatically alarming, which has the following beneficial effects:

this automatic outdoor transformer rectifier of reporting to police, adopt the high-speed singlechip of Atmega16, realized that the internal integration is regularly, the counter function, utilize the quick PWM function of timer T/C2, realize the production of SPWM signal, adopt the input capture function of T/C1, frequency phase place monitoring and tracking and the detection and the control of physical quantities such as distortion factor, input voltage, output current, temperature have been realized, monitor and report to the police various trouble, and utilize the technique that fan and natural cooling combined together, have and effectively reduce equipment volume and weight, be favorable to the heat dissipation, the reliability is high.

Drawings

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

FIG. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a rectifier body; 2. a main body control circuit; 3. a current sampling circuit; 4. an MPPT sampling circuit; 5. an under-voltage sampling circuit; 6. an undervoltage and overcurrent protection circuit; 7. a temperature sampling circuit; 8. an audible and visual alarm circuit; 9. an aluminum substrate; 10. a fan radiator; 11. an aluminum extrusion housing; 12. a side cover; 13. a mounting cavity; 14. a via hole; 15. a backing plate.

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. 1-3, the utility model discloses an automatic alarm outdoor transformer rectifier, which comprises a rectifier body 1, wherein a main body control circuit 2, a current sampling circuit 3, an MPPT sampling circuit 4, an under-voltage sampling circuit 5, an under-voltage over-current protection circuit 6, a temperature sampling circuit 7, an acousto-optic alarm circuit 8, an aluminum substrate 9 and a fan radiator 10 are sequentially installed in the rectifier body 1, the current sampling circuit 3, the MPPT sampling circuit 4, the under-voltage sampling circuit 5, the under-voltage over-current protection circuit 6, the temperature sampling circuit 7, the acousto-optic alarm circuit 8 and the fan radiator 10 are all electrically connected with the main body control circuit 2, one surface of the aluminum substrate 9 is attached to the fan radiator 10, and the other surface is attached to a rectification module of the rectifier, an Atmega16 high-speed single chip microcomputer is adopted to realize the functions of internal integration timing and counter, the SPWM signal generation is realized by utilizing the rapid PWM function of the timer T/C2, the input capture function of the T/C1 is adopted, the frequency phase monitoring and tracking as well as the detection and control of physical quantities such as distortion degree, input voltage, output current, temperature and the like are realized, various faults are monitored and alarmed, and the technology combining a fan and natural cooling is utilized, so that the volume and the weight of the equipment are effectively reduced, the heat dissipation is facilitated, and the reliability is high.

Specifically, the rectifier body 1 includes an aluminum extrusion casing 11 and side covers 12, and the side covers 12 are mounted on two sides of the aluminum extrusion casing 11 by screws.

In this embodiment, the aluminum extrusion housing 11 is a natural cooling structure, and has the characteristics of no mechanical failure, high reliability, and being beneficial to heat dissipation.

Specifically, the bottom of the aluminum extrusion housing 11 is provided with an installation cavity 13, and the heat sink 10 is fixed in the installation cavity 13.

In this embodiment, the fan radiator 10 is a fan cooling type, and has the characteristics of light weight and low cost.

Specifically, a through hole 14 is formed in the top of the mounting cavity 13, and the aluminum substrate 9 penetrates into the aluminum extruder shell 11 through the through hole 14.

In this embodiment, the aluminum substrate 9 is a metal-based copper-clad plate with a good heat dissipation function, which is beneficial to the heat conduction efficiency.

Specifically, the inboard equipartition of side closing cap 12 has backing plate 15, main part control circuit 2, current sampling circuit 3, MPPT sampling circuit 4, under-voltage sampling circuit 5, under-voltage overcurrent protection circuit 6, temperature sampling circuit 7 and audible-visual alarm circuit 8 are fixed in on backing plate 15 in proper order.

In this embodiment, because the terminal load is fixed, so current sampling is actually equal to a peak detection process, the current sampling circuit 3 is actually a peak detection circuit, the MPPT sampling circuit 4 starts to process SPWM signal for low level to adjust output impedance to realize constant voltage tracking, and finally realizes maximum power point tracking, the undervoltage sampling circuit 5 starts to work the low level undervoltage protection circuit collected by the undervoltage output end, and cuts off the power supply of the main circuit to realize undervoltage protection, the undervoltage overcurrent protection circuit 6 is used for when the current flowing through the load is too large or the input voltage is not sufficient, the normally closed end of the relay is disconnected, and the main circuit stops supplying power and is in a protection state.

Specifically, the main body control circuit 2 adopts an Atmega16 singlechip, sine waves with the same frequency and the same phase as the reference signals are subjected to SPWM modulation, sine wave pulse width modulation signals are output, the sine wave pulse width modulation signals are amplified by a driving circuit and drive an H-bridge power tube to work, and sine wave currents with the same phase and the same frequency as the reference signals are generated through a filter and a power frequency transformer.

In this embodiment, the main body control circuit 2 is used to complete the functions of synchronous signal acquisition, frequency acquisition, control signal output, and the like.

When the device is used, an Atmega16 high-speed single chip microcomputer is adopted, the functions of internal integrated timing and a counter are realized, the generation of SPWM signals is realized by utilizing the quick PWM function of a timer T/C2, the input capture function of a T/C1 is adopted, the monitoring and tracking of frequency phases and the detection and control of physical quantities such as distortion degree, input voltage, output current, temperature and the like are realized, various faults are monitored and alarmed, and the technology of combining a fan and natural cooling is utilized, so that the device has the advantages of effectively reducing the volume and weight of the device, being beneficial to heat dissipation and high reliability.

In conclusion, the automatic alarm outdoor transformer rectifier adopts an Atmega16 high-speed single chip microcomputer to realize the functions of internal integrated timing and counters, utilizes the quick PWM function of a timer T/C2 to realize the generation of SPWM signals, adopts the input capture function of T/C1 to realize frequency phase monitoring and tracking, and the detection and control of physical quantities such as distortion, input voltage, output current, temperature and the like, monitors and alarms various faults, utilizes the technology of combining a fan and natural cooling, has the advantages of effectively reducing the volume and weight of equipment, being beneficial to heat dissipation and high reliability.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an outdoor transformer rectifier of automatic warning, includes rectifier organism (1), its characterized in that: install main part control circuit (2), current sampling circuit (3), MPPT sampling circuit (4), under-voltage sampling circuit (5), under-voltage overcurrent protection circuit (6), temperature sampling circuit (7), audible and visual alarm circuit (8), aluminium base board (9) and fan radiator (10) in proper order in rectifier organism (1), current sampling circuit (3), MPPT sampling circuit (4), under-voltage sampling circuit (5), under-voltage overcurrent protection circuit (6), temperature sampling circuit (7), audible and visual alarm circuit (8) and fan radiator (10) all with main part control circuit (2) electric connection, the one side of aluminium base board (9) is attached on fan radiator (10), and the other side is attached on the rectifier module of rectifier.

2. The outdoor transformer rectifier for automatic alarm according to claim 1, wherein: the rectifier body (1) comprises an aluminum extrusion casing (11) and side sealing covers (12), wherein the side sealing covers (12) are installed on two sides of the aluminum extrusion casing (11) through screws.

3. The outdoor transformer rectifier for automatic alarm according to claim 2, wherein: the bottom of aluminium extruder shell (11) is equipped with installation cavity (13), radiator fan (10) are fixed in installation cavity (13).

4. The outdoor transformer rectifier of claim 3, wherein: the top of installation cavity (13) is equipped with through hole (14), aluminium base board (9) are worn to aluminium extruder casing (11) in from through hole (14).

5. The outdoor transformer rectifier for automatic alarm according to claim 2, wherein: the inboard equipartition of side closing cap (12) has backing plate (15), main part control circuit (2), current sampling circuit (3), MPPT sampling circuit (4), under-voltage sampling circuit (5), under-voltage overcurrent protection circuit (6), temperature sampling circuit (7) and audible-visual alarm circuit (8) are fixed in on backing plate (15) in proper order.

6. The outdoor transformer rectifier for automatic alarm according to claim 1, wherein: the main body control circuit (2) adopts an Atmega16 singlechip, sine waves with the same frequency and the same phase as the reference signals are subjected to SPWM modulation, sine wave pulse width modulation signals are output, the sine wave pulse width modulation signals are amplified by a driving circuit to drive an H-bridge power tube to work, and sine wave currents with the same phase and the same frequency as the reference signals are generated through a filter and a power frequency transformer.