Dry-type transformer with moisture-proof structure

Abstract

The utility model relates to the technical field of dry-type transformers, and discloses a dry-type transformer with a moisture-proof structure, which comprises a transformer body, a transformer bushing is arranged at the top of the transformer body, the moisture-proof structure is arranged outside the transformer bushing, and the moisture-proof structure comprises a moisture-proof shell. The top of the transformer body is fixedly connected with the bottom of a moisture-proof shell, a filter screen is arranged on the side wall of the moisture-proof shell, a containing bag is arranged outside the filter screen, a discharging pipe is arranged on the side wall of the containing bag, a feeding pipe is arranged on the top of the containing bag, and a discharging block is arranged below the feeding pipe. A through hole is formed in the upper surface of the moisture-proof shell, a micro air pump is arranged outside the through hole, and by arranging the moisture-proof structure, the risk that water enters the transformer bushing and the transformer bushing is affected with damp to damage the transformer body in a humid environment is avoided.

Description

Technical Field

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

[0002] A dry-type transformer is a device that converts electrical energy from one voltage level to another. It does not require oil for cooling, but uses special insulating materials to isolate current and prevent arcing. When we use the transformer, water ingress and moisture in the transformer are also important factors causing transformer accidents and burning.

[0003] According to a disclosed moisture-proof structure of a dry-type transformer (publication number: CN219321129U), the above application is connected to an L-shaped tube through the inner side of a rectangular box, and the bottom of the L-shaped tube penetrates through the top of the inner wall of the dry-type transformer and is connected to an air outlet box, and the air outlet box is fixedly connected to the inner wall of the dry-type transformer, so that when the transformer is in the rainy season or in a humid environment, the air humidity is too high, and the dry-type transformer can be prevented from being damp, and the dry-type transformer can be prevented from being damaged by moisture, thereby preventing the dry-type transformer from being unusable due to moisture.

[0004] However, in actual use, the above-mentioned equipment can provide moisture-proof effect for the inside of the transformer through the air outlet box and the L-shaped tube, but the bushing of the transformer cannot be treated with moisture-proof. The transformer bushing is outside the transformer body. When water enters and moisture enters, it will cause the transformer to break down, which reduces the safety of the transformer and reduces the moisture-proof performance. In view of this, we propose a dry transformer with a moisture-proof structure. Utility Model Content

[0005] The purpose of the utility model is to provide a dry-type transformer with a moisture-proof structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a dry-type transformer with a moisture-proof structure, comprising a transformer body, a transformer bushing is arranged on the top of the transformer body, a moisture-proof structure is arranged outside the transformer bushing, and the moisture-proof structure comprises:

[0007] Moisture-proof housing, the top of the transformer body is fixedly connected to the bottom of the moisture-proof housing, the side wall of the moisture-proof housing is provided with a filter screen, the filter screen prevents dust from returning to the inside of the moisture-proof housing, a placement bag is arranged outside the filter screen, a discharge pipe is arranged on the side wall of the placement bag, the placement bag is a sealed bag, external air cannot enter the placement bag, and the placement bag is made of soft material, so it is convenient to manually pinch and release the desiccant to accelerate the discharge, and the discharge pipe facilitates the discharge of the desiccant inside the placement bag, which is convenient for replacing the desiccant;

[0008] A feed pipe, a feed pipe is provided on the top of the placement bag, a sealing cover is provided on the feed pipe to ensure the sealing degree of the placement bag, a discharge block is provided below the feed pipe, the discharge block is inclined so that the desiccant is discharged toward the discharge pipe, a through hole is provided on the upper surface of the moisture-proof shell, a micro air pump is provided outside the through hole, and the input end of the micro air pump is fixedly connected to the end of the exhaust pipe;

[0009] An exhaust pipe, the output end of the micro air pump is fixedly connected to the end of the exhaust pipe, a silicone soft sleeve is arranged on the outside of the exhaust pipe, and a docking hole is opened on the top of the silicone soft sleeve.

[0010] Preferably, the end of the micro air pump is fixedly connected to the top of the moisture-proof housing, and a filter screen is passed through one end of the exhaust pipe away from the micro air pump.

[0011] Preferably, one end of the air extraction pipe away from the micro air pump passes through one side of the moisture-proof housing, and the silicone soft sleeve is located on a side of the through hole away from the transformer bushing.

[0012] Preferably, the side wall of the placement bag is fixedly connected to a side of the moisture-proof shell close to the filter screen.

[0013] Preferably, the bottom of the silicone soft cover is fixedly connected to the top of the plug-in block, and the outer surface of the plug-in block is matched with the inner surface of the slot.

[0014] Preferably, a slot is provided on the upper surface of the moisture-proof housing.

[0015] Compared with the prior art, the utility model provides a dry-type transformer with a moisture-proof structure, which has the following beneficial effects:

[0016] The dry-type transformer with a moisture-proof structure inserts the cables required to be connected to the transformer body into the through holes through the docking holes and connects them to the transformer bushing. The silicone soft sleeve provides a waterproof function for the through holes. The feed pipe puts the desiccant into the inside of the placement bag to keep the area around the transformer bushing dry. The micro air pump draws the humid gas inside the moisture-proof housing through the exhaust pipe and discharges it into the placement bag through the exhaust pipe to absorb the humid gas through the desiccant. The impact of the airflow is transmitted back to the inside of the moisture-proof housing through the filter net, thereby avoiding the risk of water entering the transformer bushing and causing the transformer body to be damaged due to moisture in a humid environment.

[0017] 2. The dry-type transformer with moisture-proof structure can disengage the silicone soft cover from the slot when it needs to be replaced by setting the plug block, so that the silicone soft cover can be quickly replaced after being worn out, ensuring the sealing and waterproofing effect of the through hole and improving the moisture-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a front view schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a top view schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is an enlarged schematic diagram of the structure of area A of the utility model;

[0021] Figure 4 It is a bottom view schematic diagram of the main structure of the utility model.

[0022] In the figure: 1. Transformer body; 2. Transformer bushing; 3. Moisture-proof shell; 4. Filter net; 5. Placement bag; 6. Discharge pipe; 7. Feed pipe; 8. Discharge block; 9. Through hole; 10. Micro air pump; 11. Vacuum pipe; 12. Exhaust pipe; 13. Silicone soft cover; 14. Docking hole; 15. Slot; 16. Plug block. DETAILED DESCRIPTION

[0023] like Figure 1-4 As shown, the utility model provides a technical solution: a dry-type transformer with a moisture-proof structure, comprising a transformer body 1, a transformer bushing 2 is arranged on the top of the transformer body 1, a moisture-proof structure is arranged on the outside of the transformer bushing 2, the moisture-proof structure comprises a moisture-proof shell 3, the top of the transformer body 1 is fixedly connected to the bottom of the moisture-proof shell 3, a filter screen 4 is provided on the side wall of the moisture-proof shell 3, a placement bag 5 is arranged on the outside of the filter screen 4, a discharge pipe 6 is provided on the side wall of the placement bag 5, a feed pipe 7 is provided on the top of the placement bag 5, a discharge block 8 is provided below the feed pipe 7, a through hole 9 is provided on the upper surface of the moisture-proof shell 3, a micro air pump 10 is arranged on the outside of the through hole 9, an input end of the micro air pump 10 is fixedly connected to the end of an exhaust pipe 11, an output end of the micro air pump 10 is fixedly connected to the end of an exhaust pipe 12, a silicone soft sleeve 13 is provided on the outside of the exhaust pipe 12, and a docking hole 14 is provided on the top of the silicone soft sleeve 13.

[0024] In one embodiment of the utility model, the end of the micro air pump 10 is fixedly connected to the top of the moisture-proof shell 3, the end of the exhaust pipe 12 away from the micro air pump 10 is penetrated by the filter screen 4, the end of the exhaust pipe 11 away from the micro air pump 10 is penetrated by one side of the moisture-proof shell 3, the silicone soft cover 13 is located on the side of the through hole 9 away from the transformer bushing 2, the side wall of the placement bag 5 is fixedly connected to the side of the moisture-proof shell 3 close to the filter screen 4, the bottom of the silicone soft cover 13 is fixedly connected to the top of the plug-in block 16, the number of silicone soft covers 13 is equal to the transformer bushing 2, the outer surface of the plug-in block 16 is adapted to the inner surface of the slot 15, the plug-in block 16 is provided in several groups, and the several groups of plug-in blocks 16 are arranged in pairs with the central axis of each group of silicone soft covers 13 as the axis of symmetry and are mirror-imaged, and the upper surface of the moisture-proof shell 3 is provided with slots 15, and the number of slots 15 is equal to the number of plug-in blocks 16.

[0025] In the utility model, when in use, the connecting wire enters the interior of the moisture-proof housing 3 through the through hole 9, and the docking hole 14 facilitates the connecting wire to be inserted into the interior of the silicone soft sleeve 13 and then enter the through hole 9 to connect with the transformer bushing 2. The silicone soft sleeve 13 prevents external water from entering the through hole 9 and causing water to enter the transformer bushing 2. The desiccant is put into the interior of the placement bag 5 through the feed pipe 7. The desiccant absorbs the humid gas near the transformer bushing 2. When the humidity of the environment is high, the micro air pump 10 is turned on. The micro air pump 10 extracts the air inside the moisture-proof housing 3 through the exhaust pipe 11, and then discharges it to the outside of the moisture-proof housing 3 through the exhaust pipe 12. The humid air passes through the placement bag 5 is adsorbed, the impact of the airflow flows from the placement bag 5 to the filter screen 4 and then returns to the interior of the moisture-proof housing 3, so that the air around the transformer bushing 2 is no longer humid, thereby improving the moisture-proof performance of the transformer body 1. Finally, when the silicone soft cover 13 is worn out after continuous use, the silicone soft cover 13 is manually held and pulled upward to separate the plug 16 from the interior of the slot 15, so that the silicone soft cover 13 is separated from the protection of the through hole 9, and then the plug 16 of the new silicone soft cover 13 is inserted into the interior of the slot 15 to provide waterproof protection for the transformer bushing 2, thereby ensuring the moisture-proof effect of the transformer body 1.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A dry-type transformer with a moisture-proof structure, comprising a transformer body (1), a transformer bushing (2) being arranged on the top of the transformer body (1), characterized in that: The transformer bushing (2) is provided with a moisture-proof structure on the outside, and the moisture-proof structure comprises: A moisture-proof housing (3), wherein the top of the transformer body (1) is fixedly connected to the bottom of the moisture-proof housing (3), a filter screen (4) is provided on the side wall of the moisture-proof housing (3), a placement bag (5) is provided outside the filter screen (4), and a discharge pipe (6) is provided on the side wall of the placement bag (5); A feed pipe (7), the top of the placement bag (5) is provided with a feed pipe (7), a discharge block (8) is provided below the feed pipe (7), a through hole (9) is provided on the upper surface of the moisture-proof shell (3), a micro air pump (10) is provided outside the through hole (9), and the input end of the micro air pump (10) is fixedly connected to the end of the exhaust pipe (11); An exhaust pipe (12), wherein the output end of the micro air pump (10) is fixedly connected to the end of the exhaust pipe (12), a silicone soft sleeve (13) is provided on the outside of the exhaust pipe (12), and a docking hole (14) is provided on the top of the silicone soft sleeve (13).

2. The dry-type transformer with a moisture-proof structure according to claim 1, characterized in that: The end of the micro air pump (10) is fixedly connected to the top of the moisture-proof housing (3), and the end of the exhaust pipe (12) away from the micro air pump (10) is penetrated by a filter screen (4).

3. The dry-type transformer with a moisture-proof structure according to claim 1, characterized in that: One end of the air extraction pipe (11) away from the micro air pump (10) penetrates one side of the moisture-proof housing (3), and the silicone soft sleeve (13) is located on the side of the through hole (9) away from the transformer bushing (2).

4. The dry-type transformer with a moisture-proof structure according to claim 1, characterized in that: The side wall of the placement bag (5) is fixedly connected to a side of the moisture-proof housing (3) close to the filter screen (4).

5. The dry-type transformer with a moisture-proof structure according to claim 1, characterized in that: The bottom of the silicone soft sleeve (13) is fixedly connected to the top of the plug block (16), and the outer surface of the plug block (16) is adapted to the inner surface of the slot (15).

6. The dry-type transformer with moisture-proof structure according to claim 5, characterized in that: A slot (15) is provided on the upper surface of the moisture-proof housing (3).

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