CN204242731U - Waterproof safety type resin insulating dry type transformer - Google Patents

Abstract

The utility model discloses a kind of waterproof safety type resin insulating dry type transformer, comprise transformer body, housing, base and bucker, described case top is provided with bucker, bucker is taper pinnacle tetrahedral structure, tetrahedron is inclined plane, and relative inclined plane is wherein fixed with air draft body, is connected state in air draft body and bucker, a ventilating fan is vertically installed at outlet position in air draft body, and the outlet position of this ventilating fan is provided with one and keeps off the rain flabellum.Housing establishes bucker, the air draft body of bucker and inside thereof all adopts rigid insulation material to make, and there is pinnacle structure, arrange in inclination angle between several plane and vertical direction, main body is provided with ventilating fan, while quick draining smoothly, also help heat radiation, air draft, arranging the flabellum that keeps off the rain can avoid rainwater to enter enclosure interior simultaneously while heat dissipation exhaust.

Description

Waterproof and safe resin insulated dry-type transformer

technical field

The utility model relates to the field of transformers, in particular to a waterproof and safe resin-insulated dry-type transformer.

Background technique

Dry-type transformers generally rely on air convection for cooling, and can be used for local lighting, electronic circuits, mechanical equipment, etc. Gray transformers, dust removal transformers, desulfurization transformers, etc. are all dry-type transformers, with transformation ratios of 6000V/400V and 10KV/400V, and are used for loads with a rated voltage of 380V. Compared with oil-type transformers, dry-type transformers do not have oil There are no serious problems such as fire, explosion, pollution, etc., but dry-type transformers do not have a temperature measurement system. Once the temperature of the coil is too high during the working process, it is easy to cause damage to the equipment due to overheating, or even a dangerous situation, and there is no cooling device. The temperature cannot be lowered in time, and the current dry-type transformer shell is flat. When there is water, the water will accumulate on the top, which will easily cause the shell to corrode. security risks.

Utility model content

The purpose of this utility model is to provide a waterproof and safe resin-insulated dry-type transformer to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A waterproof and safe resin insulated dry-type transformer, including a transformer body, a casing, a base and a waterproof cover, the top of the casing is provided with a waterproof cover, the waterproof cover is a tetrahedral structure with a conical apex, and the tetrahedrons are all inclined surfaces. An exhaust body is fixed on the opposite inclined surface, and the exhaust body is connected to the waterproof cover. A row of fans is vertically installed at the outlet of the exhaust body, and a rain-shielding fan blade is installed at the outlet of the exhaust fan. , the transformer body and housing are arranged on the base, the transformer body includes an iron core and a coil, the coil includes a low-voltage coil and a high-voltage coil, the high-voltage coil is wrapped on the outside of the low-voltage coil, and a thermal sensor is installed on the high-voltage coil. The temperature measuring resistor is provided with a temperature display on the housing, the thermistor temperature measuring resistor is electrically connected to the temperature display, and a fan is provided at the bottom of the transformer body.

As a further solution of the utility model: the lower edge of the waterproof cover is provided with a skirt.

As a further solution of the utility model: the housing is provided with an over-temperature alarm system, and the over-temperature alarm system is connected with a knife control switch.

As a further proposal of the present invention: the thickness of the casing is 3-5 mm.

Compared with the prior art, the beneficial effects of the utility model are:

1. A waterproof cover is installed on the shell, and the waterproof cover and the exhaust body inside are made of hard insulating materials, and have a conical pointed top structure. The exhaust fan is good for heat dissipation and exhaust while quickly and smoothly draining water. At the same time, setting the rain shield fan blade can prevent rainwater from entering the interior of the housing while cooling and exhausting air.

2. The waterproof cover has the advantages of simple structure, convenient installation, and not easy to damage. It adopts the design of the inclined surface, which can effectively guide the water, reduce the deposition of dust, facilitate the distribution of heat, and further improve the reliability and safety of the equipment. sex.

3. There is a thermistor temperature measuring resistor on the transformer body, which can measure the actual temperature of the transformer coil in time and display it on the temperature display. When the coil temperature is too high, the staff can turn on the fan switch and cooperate with the exhaust fan to cool the transformer. Cooling improves the safety and stability of equipment operation and prolongs the service life of the equipment. An over-temperature alarm system is installed. The over-temperature alarm system is connected with a knife control switch. When the coil temperature exceeds the limited temperature, the thermistor temperature measuring resistance The signal will be sent to the over-temperature alarm system, and then the over-temperature alarm system will respond immediately and control the switch of the switch to close the switch of the transformer to avoid fire.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural diagram of section A-A in Fig. 1 .

Fig. 3 is a structural schematic diagram of the waterproof cover viewed from above.

FIG. 4 is a schematic structural view of the section B-B in FIG. 3 .

In the figure: 1-transformer body, 2-housing, 3-base, 4-iron core, 5-low voltage coil, 6-high voltage coil, 7-thermistor temperature measuring resistor, 8-temperature display, 9-fan, 10 -Over-temperature alarm system, 11-knife control switch, 12-conical apex, 13-exhaust body, 14-rain fan blade, 15-skirt, 16-exhaust fan.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 4. In the embodiment of the utility model, a waterproof and safe resin-insulated dry-type transformer includes a transformer body 1, a casing 2, a base 3 and a waterproof cover. The top of the casing 2 is provided with a waterproof cover. , the waterproof cover is a tapered pointed top 12 tetrahedron structure, and the tetrahedrons are all inclined surfaces, and the exhaust body 13 is fixed on the opposite inclined surface, and the exhaust body 13 is in a connected state with the waterproof cover. A row of fans 16 is vertically installed at the exit position in the body 13, and a rain-proof fan blade 14 is installed at the exit position of the exhaust fan 16, and a waterproof cover is set on the housing 2, and the waterproof cover and the exhaust body 13 inside both adopt rigid insulation. It is made of materials, and has a conical pointed top 12 structure, and several planes are arranged at an inclination angle to the vertical direction. An exhaust fan 16 is arranged on the main body, which is conducive to heat dissipation and exhaust while quickly and smoothly draining water. At the same time, a rain shielding fan is installed The leaves 14 can prevent rainwater from entering the interior of the housing 2 while dissipating heat and exhausting the air. The waterproof cover has the advantages of simple structure, convenient installation, and not easy to be damaged. Deposition is conducive to the distribution of heat, and can further improve the reliability and safety of the equipment; the transformer body 1 and the casing 2 are arranged on the base 3, and the transformer body 1 includes an iron core 4 and a coil, and the coil includes a low-voltage coil 5 and A high-voltage coil 6, the high-voltage coil 6 is wrapped on the outside of the low-voltage coil 5, a thermistor temperature-measuring resistor 7 is arranged on the high-voltage coil 6, a temperature display 8 is provided on the housing 2, the thermistor temperature-measuring resistor 7 and the temperature display 8 is electrical connection, the bottom of the transformer body 1 is provided with a fan 9, and the transformer body 1 is provided with a thermistor temperature measuring resistor 7, which can measure the actual temperature of the transformer coil in time and display it through the temperature display 8. When the coil temperature When it is too high, the staff can turn on the fan 9 switch and cooperate with the exhaust fan 16 to cool down the transformer, which improves the safety and stability of the equipment operation and prolongs the service life of the equipment. The lower edge of the waterproof cover is provided with a skirt 15, The housing 2 is provided with an over-temperature alarm system 10, the over-temperature alarm system 10 is connected with a knife control switch 11, the over-temperature alarm system 10 is set, the over-temperature alarm system 10 is connected with a knife control switch 11, when the coil temperature When the temperature exceeds the limit, the thermistor 7 will send a signal to the over-temperature alarm system 10, and then the over-temperature alarm system 10 will respond immediately and control the switch 11 to close the switch of the transformer to avoid fire. The thickness of the shell 2 is 3-5 mm, and a reasonable choice of the thickness of the shell 2 can save material while ensuring the effect of the shell 2 .

Claims (4)

1. a waterproof safety type resin insulating dry type transformer, comprise transformer body (1), housing (2), base (3) and bucker, it is characterized in that, described housing (2) top is provided with bucker, bucker is taper pinnacle (12) tetrahedral structure, tetrahedron is inclined plane, relative inclined plane is wherein fixed with air draft body (13), be connected state in air draft body (13) and bucker, a ventilating fan (16) is vertically installed at outlet position in air draft body (13), the outlet position of this ventilating fan (16) is provided with one and keeps off the rain flabellum (14), described transformer body (1) and housing (2) are located on base (3), described transformer body (1) comprises iron core (4) and coil, coil comprises low-voltage coil (5) and high-tension coil (6), high-tension coil (6) is coated on low-voltage coil (5) outside, described high-tension coil (6) is provided with temperature-sensitive temperature detecting resistance (7), housing (2) is provided with temperature indicator (8), temperature-sensitive temperature detecting resistance (7) and temperature indicator (8) are for being electrically connected, transformer body (1) bottom is provided with fan (9).

2. a kind of waterproof safety type resin insulating dry type transformer according to claim 1, is characterized in that, the lower edge of described bucker is provided with skirt along (15).

3. a kind of waterproof safety type resin insulating dry type transformer according to claim 1, it is characterized in that, described housing (2) is provided with overtemperature alarm system (10), and overtemperature alarm system (10) is connected with plug-in strip control switch (11).

4. a kind of waterproof safety type resin insulating dry type transformer according to claim 1, is characterized in that, the thickness of described housing (2) is 3 ~ 5mm.