Damp-proof dry-type transformer

Abstract

The utility model discloses a moisture-proof dry-type transformer which comprises a base, the top of the base is provided with a dry-type transformer body, the dry-type transformer body is sleeved with a box body, the box body is detachably connected with the base, and moisture-proof mechanisms are arranged inside and outside the box body. The moisture-proof mechanism comprises a heater, a humidity sensor, a ventilation groove, a mounting plate, a handle, a telescopic rod, a spring, a lifting plate, an insertion rod, an insertion groove, a sliding groove and a sliding rod, the sliding groove is formed in an inner cavity of the box body, the moisture-proof mechanism enables the humidity sensor to detect the humidity in the box body, and the humidity sensor controls the heater to operate through a controller; the heater in the running state heats and dehumidifies the interior of the box body, so that the situation that water drops are condensed on the inner wall of the box body and consequently the dry-type transformer is prone to being affected with damp is avoided, the mounting plate in the state of moving towards the outer side drives the dry-type transformer to move from the interior of the box body to the exterior, and operators can conveniently disassemble, assemble and overhaul the dry-type transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a moisture-proof dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, etc. Dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. The requirements for the use environment of dry-type transformers are that the temperature is between 0-40 degrees, the relative humidity is <70%, and it should be avoided from rain, moisture, high temperature, high heat or direct sunlight.

[0003] Existing dry-type transformers are usually placed outdoors. In rainy weather, moisture from the outside of the dry-type transformer body can easily enter the inside, causing the internal components of the dry-type transformer to rust and be damaged, affecting the normal use of the dry-type transformer. Some dry-type transformers are equipped with a box outside to protect them, but when the temperature difference between the external air environment and the air environment inside the box is large, water droplets will condense on the inner wall of the box, causing the dry-type transformer to be easily affected by moisture. Utility Model Content

[0004] The utility model aims to provide a moisture-proof dry-type transformer to solve the problem in the background art that when the temperature difference between the external air environment and the air environment inside the box is large, water droplets will condense on the inner wall of the box, causing the dry-type transformer to be easily affected by moisture.

[0005] To achieve the above object, the utility model provides the following technical solution: a moisture-proof dry-type transformer, comprising a base, a dry-type transformer is installed on the top of the base, a box is sleeved on the outside of the dry-type transformer, and the box is detachably connected to the base, and a moisture-proof mechanism is arranged inside and outside the box;

[0006] The moisture-proof mechanism includes a heater, a humidity sensor, a ventilation slot, a mounting plate, a handle, a telescopic rod, a spring, a lifting plate, a plug rod, a slot, a slide groove and a slide rod;

[0007] The slide groove is opened in the inner cavity of the box body, the slide rod is slidably connected to the inside of the slide groove and extends to the outside thereof, the mounting plate is fixedly connected to the end of the slide rod, the heater is disassembled and mounted on the inner end surface of the mounting plate by bolts, the humidity sensor is mounted on one end of the inner wall of the box body, and the ventilation groove is opened on the outer wall of the box body and completely penetrates;

[0008] The handle is fixedly connected to the top of the mounting plate, the sliding rod of the telescopic rod is fixedly connected to the bottom end of the bent portion of the handle, the spring is sleeved on the outer wall of the telescopic rod, and the two ends of the spring are respectively fixedly connected to the sleeve and the sliding rod of the telescopic rod, the lifting plate is fixedly connected to the bottom of the sleeve, the insertion rod is fixedly connected to the bottom of the lifting plate, and the slot is opened at the top of the box and extends toward the inside thereof.

[0009] Preferably, the heater is electrically connected to the heater via a controller, and the heater in an operating state is used to heat and dehumidify the interior of the box.

[0010] Preferably, the slot is used for the insertion rod to be inserted therein, and the slot and the insertion rod in a locked state are used to lock and limit the movement of the mounting plate.

[0011] Preferably, the telescopic rod and the spring in the compressed state are used to assist the insertion rod in moving upward, and the telescopic rod and the spring in the reset state are used to drive the insertion rod to move downward.

[0012] Preferably, the ventilation slots are used for ventilation and heat dissipation between the interior and exterior of the box, and the handles are used for operators to hold.

[0013] Preferably, the mounting plate moving in a direction away from the box body is used to open the opening of the box body, and the mounting plate moving in a direction close to the box body is used to close the opening of the box body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the moisture-proof mechanism enables the humidity sensor to detect the humidity inside the box, and the humidity sensor controls the operation of the heater through the controller, and the heater in the operating state heats and dehumidifies the inside of the box, thereby avoiding the situation where water droplets condense on the inner wall of the box and cause the dry-type transformer to be easily affected by moisture, and the mounting plate in the outward moving state drives the dry-type transformer to move from the inside of the box to the outside, which is convenient for operators to disassemble, assemble and repair the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the moisture-proof mechanism of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the moisture-proof mechanism of the utility model from another perspective.

[0019] In the figure: 1. base; 2. box; 3. moisture-proof mechanism; 301. heater; 302. humidity sensor; 303. ventilation slot; 304. mounting plate; 305. handle; 306. telescopic rod; 307. spring; 308. lifting plate; 309. plug-in rod; 3010. slot; 3011. slide groove; 3012. slide rod; 4. dry-type transformer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution for moisture-proof dry-type transformers: a moisture-proof dry-type transformer, comprising a base 1, a dry-type transformer 4 is installed on the top of the base 1, a box 2 is sleeved on the outside of the dry-type transformer 4, and the box 2 is detachably connected to the base 1, and a moisture-proof mechanism 3 is arranged inside and outside the box 2;

[0022] The moisture-proof mechanism 3 includes a heater 301, a humidity sensor 302, a ventilation slot 303, a mounting plate 304, a handle 305, a telescopic rod 306, a spring 307, a lifting plate 308, an insertion rod 309, a slot 3010, a slide slot 3011 and a slide rod 3012;

[0023] The slide groove 3011 is opened in the inner cavity of the box body 2, the slide rod 3012 is slidably connected to the inside of the slide groove 3011 and extends to the outside thereof, the mounting plate 304 is fixedly connected to the end of the slide rod 3012, the heater 301 is disassembled and installed on the inner end surface of the mounting plate 304 by bolts, the humidity sensor 302 is installed on one end of the inner wall of the box body 2, and the ventilation groove 303 is opened on the outer wall of the box body 2 and completely penetrates;

[0024] The handle 305 is fixedly connected to the top of the mounting plate 304, the sliding rod of the telescopic rod 306 is fixedly connected to the bottom end of the bent portion of the handle 305, the spring 307 is sleeved on the outer wall of the telescopic rod 306, and the two ends of the spring 307 are respectively fixedly connected to the sleeve and the sliding rod of the telescopic rod 306, the lifting plate 308 is fixedly connected to the bottom of the sleeve, the insertion rod 309 is fixedly connected to the bottom of the lifting plate 308, and the slot 3010 is opened at the top of the box body 2 and extends toward the inside thereof.

[0025] Please refer to Figure 4The heater 301 is electrically connected to the heater 301 through the controller, and the heater 301 in operation is used to heat and dehumidify the interior of the box 2.

[0026] In this embodiment: since the heater 301 is electrically connected to the heater 301 through the controller, the transmitting end of the humidity sensor 302 transmits a signal to the controller, and the controller receives the signal and controls the operation of the heater 301, so that the heater 301 in the operating state heats and dehumidifies the inside of the box 2.

[0027] Please refer to Figure 2 The slot 3010 is used for inserting the rod 309 therein, and the slot 3010 and the rod 309 in the engaged state are used to lock and limit the movement of the mounting plate 304.

[0028] In this embodiment, the downwardly moving insertion rod 309 is inserted into the slot 3010 , so that the slot 3010 and the insertion rod 309 in the engaged state lock and limit the movement of the mounting plate 304 , thereby completing the installation of the dry-type transformer 4 inside the box body 2 .

[0029] Please refer to Figure 4 The telescopic rod 306 and the spring 307 in the compressed state are used to assist the insertion rod 309 to move upward, and the telescopic rod 306 and the spring 307 in the reset state are used to drive the insertion rod 309 to move downward.

[0030] In this embodiment, the handle 305 and the lifting plate 308 are loosened by hand, so that the retractable rod 306 and the spring 307 in the reset state drive the insertion rod 309 to move downward through the lifting plate 308, and the insertion rod 309 moving downward is inserted into the slot 3010.

[0031] Please refer to Figure 3 The ventilation slot 303 is used for ventilation and heat dissipation between the inside and outside of the box body 2, and the handle 305 is used for the operator to hold.

[0032] In this embodiment, the operator holds the handle 305 and the lifting plate 308 at the same time, and applies an upward pulling force to the lifting plate 308 through the handle 305. When a higher temperature is generated inside the box body 2, ventilation and heat dissipation can be performed through the ventilation slots 303.

[0033] Please refer to Figure 3 The mounting plate 304 moving in a direction away from the box body 2 is used to open the opening of the box body 2, and the mounting plate 304 moving in a direction close to the box body 2 is used to close the opening of the box body 2.

[0034] In this embodiment: when the mounting plate 304 is moved in a direction away from the box body 2, the mounting plate 304 in the outward moving state drives the dry-type transformer 4 to move from the inside of the box body 2 to the outside; when the mounting plate 304 is moved in a direction close to the box body 2, the mounting plate 304 in the inward moving state drives the dry-type transformer 4 to move into the inside of the box body 2.

[0035] Working principle: When the temperature difference between the outside air environment and the air environment inside the box 2 is large, water droplets condense on the inner wall of the box 2. At this time, the receiving end of the humidity sensor 302 senses that the humidity inside the box 2 is high. Since the heater 301 is electrically connected to the heater 301 through the controller, the transmitting end of the humidity sensor 302 transmits a signal to the controller. The controller receives the signal and controls the heater 301 to operate, so that the heater 301 in the operating state heats and dehumidifies the inside of the box 2, and the ventilation slots 303 opened on the surface of the box 2 allow the inside and outside of the box 2 to circulate, thereby avoiding the situation where the dry-type transformer 4 is easily affected by moisture due to the condensation of water droplets on the inner wall of the box 2;

[0036] When the dry-type transformer 4 needs to be disassembled and repaired, the hand holds the handle 305 and the lifting plate 308 at the same time, and the hand lifts the lifting plate 308 to apply an upward pulling force to transmit the force of the lifting plate 308 to the telescopic rod 306 and the spring 307, so that the telescopic rod 306 and the spring 307 are compressed, and the telescopic rod 306 and the spring 307 in the compressed state drive the insertion rod 309 to move upward through the lifting plate 308, and the upwardly moving insertion rod 309 is pulled out from the inside of the slot 3010, and the separated insertion rod 309 and the slot 3010 release the movement limit of the mounting plate 304. At this time, the mounting plate 304 is pulled away from the box body 2, so that the moving mounting plate 304 drives the sliding rod 3012 to move to the outside of the slide groove 3011, and the sliding rod 3012 cooperates with the slide groove 3011 The mounting plate 304 can be assisted to move smoothly, so that the mounting plate 304 in the state of moving outward drives the dry-type transformer 4 to move from the inside of the box body 2 to the outside, which is convenient for the operator to disassemble, assemble and repair the dry-type transformer 4. When the dry-type transformer 4 needs to be installed into the box body 2, as described above, the mounting plate 304 in the state of moving inward drives the dry-type transformer 4 to move from the outside of the box body 2 to the inside, and the handle 305 and the lifting plate 308 are loosened by hand, so that the telescopic rod 306 and the spring 307 in the reset state drive the insertion rod 309 to move downward through the lifting plate 308, and the insertion rod 309 moving downward is inserted into the slot 3010, so that the slot 3010 and the insertion rod 309 in the engaged state lock and limit the movement of the mounting plate 304, so that the dry-type transformer 4 is installed in the box body 2.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof dry-type transformer, comprising a base (1), a dry-type transformer (4) being mounted on the top of the base (1), a box (2) being sleeved on the outside of the dry-type transformer (4), and the box (2) being detachably connected to the base (1), characterized in that: The box body (2) is provided with moisture-proof mechanisms (3) inside and outside; The moisture-proof mechanism (3) comprises a heater (301), a humidity sensor (302), a ventilation slot (303), a mounting plate (304), a handle (305), a telescopic rod (306), a spring (307), a lifting plate (308), an insertion rod (309), a slot (3010), a slide groove (3011) and a slide rod (3012); The slide groove (3011) is opened in the inner cavity of the box body (2), the slide rod (3012) is slidably connected to the inside of the slide groove (3011) and extends to the outside thereof, the mounting plate (304) is fixedly connected to the end of the slide rod (3012), the heater (301) is installed on the inner side end surface of the mounting plate (304) by means of bolts, the humidity sensor (302) is installed on one end of the inner wall of the box body (2), and the ventilation groove (303) is opened on the outer wall of the box body (2) and completely penetrates; The handle (305) is fixedly connected to the top of the mounting plate (304), the sliding rod of the telescopic rod (306) is fixedly connected to the bottom end of the bent portion of the handle (305), the spring (307) is sleeved on the outer wall of the telescopic rod (306), and the two ends of the spring (307) are respectively fixedly connected to the sleeve and the sliding rod of the telescopic rod (306), the lifting plate (308) is fixedly connected to the bottom of the sleeve, the insertion rod (309) is fixedly connected to the bottom of the lifting plate (308), and the slot (3010) is opened at the top of the box body (2) and extends toward the inside thereof.

2. A moisture-proof dry-type transformer according to claim 1, characterized in that: The heater (301) is electrically connected to the heater (301) via a controller, and the heater (301) in an operating state is used to heat and dehumidify the interior of the box (2).

3. A moisture-proof dry-type transformer according to claim 1, characterized in that: The slot (3010) is used for inserting the insertion rod (309) therein, and the slot (3010) and the insertion rod (309) in a locked state are used to lock and limit the movement of the mounting plate (304).

4. A moisture-proof dry-type transformer according to claim 1, characterized in that: The telescopic rod (306) and the spring (307) in the compressed state are used to assist the insertion rod (309) in moving upward, and the telescopic rod (306) and the spring (307) in the reset state are used to drive the insertion rod (309) to move downward.

5. The moisture-proof dry-type transformer according to claim 1, characterized in that: The ventilation slot (303) is used for ventilation and heat dissipation between the interior and exterior of the box body (2), and the handle (305) is used for being held by an operator.

6. The moisture-proof dry-type transformer according to claim 1, characterized in that: The mounting plate (304) that moves in a direction away from the box body (2) is used to open the opening of the box body (2), and the mounting plate (304) that moves in a direction close to the box body (2) is used to close the opening of the box body (2).

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