CN215680370U

CN215680370U - Automatic power-off protection device for transformer

Info

Publication number: CN215680370U
Application number: CN202022864145.XU
Authority: CN
Inventors: 费忠
Original assignee: Wuxi Yongqiang Electronic Appliance Co ltd
Current assignee: Wuxi Yongqiang Electronic Appliance Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-01-28
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses an automatic power-off protection device for a transformer, which comprises a transformer body, wherein a base is installed at the bottom of the transformer body, a cavity is arranged in the base, a liquid level sensor is installed at the top of the cavity, a warning module is installed at the upper part of the base and on one side of the outer part of the transformer body, a controller is installed on the right side of the warning module, a temperature detection sensor and a fuse are arranged in the transformer body, a transformer connector is installed at the top of the transformer body, a resistance sensor is installed on the transformer connector, a group of heat dissipation fan blades are installed on two sides of the transformer body, and heat dissipation fins are installed on the outer sides of the heat dissipation fan blades. The transformer protection device has the advantages of reasonable overall design, simple structure and strong practicability, can automatically perform power-off protection when the transformer encounters different faults, avoids electrical fire, simultaneously informs maintenance personnel to perform treatment in time, and has good use effect and the like.

Description

Automatic power-off protection device for transformer

Technical Field

The utility model relates to the technical field related to power-off protection of transformers, in particular to an automatic power-off protection device for a transformer.

Background

A power transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. The electric energy transmission is realized according to the principle of electromagnetic induction. Its uses can be classified into power transformers, test transformers, instrument transformers, and transformers for special purposes.

At present, with the use of electrical equipment by a large margin, the situations of overhigh temperature, short circuit of a transformer coil, flooding of the transformer caused by outdoor rain and the like often occur, and further, the occurrence of electrical fire is caused, so that the provision of the automatic power-off protection device for the transformer is very necessary.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an automatic power-off protection device for a transformer, which solves the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an automatic power-off protection device for transformer, includes the transformer body, the base is installed to the bottom of transformer body, be equipped with the cavity in the base, level sensor is installed at the top of cavity, the warning module is just installed on one side of the outside of transformer body in the upper portion of base, the controller is installed on the right side of warning module, this internal temperature detection sensor and the fuse of being equipped with of transformer, the transformer connector is installed at the top of transformer body, install resistance sensor on the transformer connector, a set of heat dissipation fan blade is installed to the both sides of transformer body, radiating fin is installed in the outside of heat dissipation fan blade.

Preferably, the warning module is provided with a warning lamp and a buzzer.

Preferably, a plurality of through holes are formed in two end faces of the base.

Preferably, the input end of the controller is electrically connected with the liquid level sensor, the temperature detection sensor and the resistance sensor.

Preferably, the output end of the controller is electrically connected with the heat dissipation fan blade, the fuse and the warning module.

Preferably, the resistance sensor is a resistance strain gauge sensor.

Compared with the prior art, the utility model has the beneficial effects that: the temperature detection sensor, the resistance sensor and the liquid level sensor which are designed inside and outside the transformer can take corresponding measures in advance to deal with faults, when the temperature detection sensor inside the transformer body monitors that the internal temperature is too high and exceeds a set value, a signal can be sent to the controller, the controller can control the radiating blades, the fuse and the warning module to operate, automatic power-off is realized through the fuse, heat inside the transformer can be quickly dissipated through the radiating blades, warning is realized through the warning lamp and the buzzer of the warning module, maintenance personnel can be informed to timely process the alarm, whether the contact resistance at the connector of the transformer and the liquid level sensor can detect that the base at the lower part of the transformer body is overflowed with water can be detected by the resistance sensor on the connector of the transformer, when the contact resistance exceeds the set threshold value and the base is overflowed with water, the corresponding sensor can transmit signals to the controller, and then the fuse is controlled to carry out power-off protection, the operation of the warning lamp and the buzzer so that maintenance personnel can timely notice to carry out fault clearing and power restoration.

The transformer protection device has the advantages of reasonable overall design, simple structure and strong practicability, can automatically perform power-off protection when the transformer encounters different faults, avoids electrical fire, simultaneously informs maintenance personnel to perform treatment in time, and has good use effect and the like.

Drawings

FIG. 1 is a schematic diagram of an overall structure of an automatic power-off protection device for a transformer according to the present invention;

FIG. 2 is a schematic diagram of an external structure of an automatic power-off protection device for a transformer according to the present invention;

fig. 3 is a schematic diagram of an electrical connection of an auto-power-off protection device for a transformer according to the present invention.

In the figure: 1. a transformer body; 2. a base; 3. a cavity; 4. a liquid level sensor; 5. a warning module; 6. a controller; 7. a temperature detection sensor; 8. a fuse; 9. a transformer connector; 10. a resistance sensor; 11. a heat dissipation fan blade; 12. a heat dissipating fin; 13. a warning light; 14. a buzzer; 15. and a through hole.

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 present invention provides a technical solution: an automatic power-off protection device for a transformer comprises a transformer body 1, wherein a base 2 is installed at the bottom of the transformer body 1, a cavity 3 is arranged in the base 2, a liquid level sensor 4 is installed at the top of the cavity 3, a warning module 5 is installed at the upper part of the base 2 and on one side of the outer portion of the transformer body 1, a controller 6 is installed on the right side of the warning module 5, a temperature detection sensor 7 and a fuse 8 are arranged in the transformer body 1, a transformer connector 9 is installed at the top of the transformer body 1, a resistance sensor 10 is installed on the transformer connector 9, a group of heat dissipation fan blades 11 are installed on two sides of the transformer body 1, and heat dissipation fins 12 are installed on the outer sides of the heat dissipation fan blades 11;

the warning module 5 is provided with a warning lamp 13 and a buzzer 14, a plurality of through holes 15 are arranged on two end faces of the base 2, the input end of the controller 6 is electrically connected with the liquid level sensor 4, the temperature detection sensor 7 and the resistance sensor 10, the output end of the controller 6 is electrically connected with the heat dissipation fan blade 11, the fuse 8 and the warning module 5, the resistance sensor 10 is a resistance strain type sensor, corresponding measures can be taken for responding to faults in advance through the temperature detection sensor 7, the resistance sensor 10 and the liquid level sensor 4 which are arranged inside and outside the transformer, when the temperature detection sensor 7 inside the transformer body 1 monitors that the internal temperature is too high to exceed a set value, a signal is sent to the controller 6, the controller 6 can control the heat dissipation blades, the fuse 8 and the warning module 5 to operate, automatic power off is realized through the fuse 8, and the heat inside the transformer can be rapidly dissipated through the heat dissipation blades, the alarm is realized through the alarm lamp 13 and the buzzer 14 of the alarm module 5, the maintenance personnel is informed to process in time, the resistance sensor 10 on the transformer connector 9 can detect the contact resistance at the transformer connector 9 and the liquid level sensor 4 can detect whether the water overflows on the base 2 at the lower part of the transformer body 1, when the contact resistance exceeds a set threshold and water in the base 2 begins to rise, the corresponding sensor transmits a signal to the controller 6, further controlling the fuse 8 to perform power-off protection and the operation of the warning lamp 13 and the buzzer 14 so that maintenance personnel can timely perceive fault clearing and power restoration, the utility model has reasonable integral design, simple structure and strong practicability, can automatic power-off protection when the transformer meets different faults, avoid the emergence of electric fire, in time inform the maintenance personal simultaneously and handle, have advantages such as excellent in use effect.

The working principle is as follows: when the utility model is used, the temperature detecting sensor 7, the resistance sensor 10 and the liquid level sensor 4 which are designed inside and outside the transformer can take corresponding measures in advance for dealing with faults, when the temperature detecting sensor 7 inside the transformer body 1 monitors that the internal temperature is too high to exceed a set value, a signal is sent to the controller 6, the controller 6 can control the radiating blades, the fuse 8 and the warning module 5 to operate, the automatic power-off is realized through the fuse 8, the rapid dissipation of the heat inside the transformer is realized through the radiating blades, the warning is realized through the warning lamp 13 and the buzzer 14 of the warning module 5, the maintenance personnel is informed to process in time, the resistance sensor 10 on the transformer connector 9 can measure the contact resistance at the transformer connector 9 and the liquid level sensor 4 can detect whether the base 2 at the lower part of the transformer body 1 is overflowed with water or not, when contact resistance surpassed the threshold of settlement and base 2 had water to begin to rise, corresponding sensor then can transmit signal for controller 6, and then control fuse 8 carries out power-off protection and warning light 13, buzzer 14 operation so that maintenance personal in time perceives to carry out clearance and power restoration, and the device overall design is reasonable, has advantages such as easy operation, convenient to use, excellent in use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. An automatic power-off protection device for a transformer, comprising a transformer body (1), characterized in that: base (2) are installed to the bottom of transformer body (1), be equipped with cavity (3) in base (2), level sensor (4) are installed at the top of cavity (3), warning module (5) are just installed on one side of the outside of transformer body (1) on the upper portion of base (2), controller (6) are installed on the right side of warning module (5), be equipped with temperature detection sensor (7) and fuse (8) in transformer body (1), transformer connector (9) are installed at the top of transformer body (1), install resistance sensor (10) on transformer connector (9), a set of heat dissipation fan blade (11) are installed to the both sides of transformer body (1), radiating fin (12) are installed in the outside of heat dissipation fan blade (11).

2. An automatic power-off protection device for transformer according to claim 1, characterized in that: the warning module (5) is provided with a warning lamp (13) and a buzzer (14).

3. An automatic power-off protection device for transformer according to claim 1, characterized in that: and a plurality of through holes (15) are formed in two end faces of the base (2).

4. An automatic power-off protection device for transformer according to claim 1, characterized in that: the input end of the controller (6) is electrically connected with the liquid level sensor (4), the temperature detection sensor (7) and the resistance sensor (10).

5. An automatic power-off protection device for transformer according to claim 1, characterized in that: the output of controller (6) with heat dissipation fan blade (11), fuse (8) with warning module (5) electric connection.

6. An automatic power-off protection device for transformer according to claim 1, characterized in that: the resistance sensor (10) is a resistance strain gauge sensor.