Dry-type transformer

Abstract

The utility model provides a dry-type transformer, which relates to the technical field of transformers and comprises a transformer shell, the transformer shell is of a rectangular structure, a wiring module is mounted at the top of the transformer shell, and a bottom noise reduction plate is mounted at the bottom of the inner side of the transformer shell; a magnetic circuit module is mounted on the bottom noise reduction plate; ventilation grooves are formed in the tops of the two sides of the transformer shell. A filter plate is mounted on the inner side of the ventilation slot; guide side plates are mounted at the bottom and the rear side of the transformer shell; and a guide sliding plate is slidably mounted on the outer side of the guide side plate. The positions of the baffles are adjusted according to the internal temperature of the dry-type transformer for ventilation and heat dissipation, so that the baffles are adjusted according to heat dissipation requirements, the problem that a large amount of dust is gathered is avoided, efficient work of the dry-type transformer is guaranteed, and the problem that ventilation openings are in a normally-open state as well is solved. And the working efficiency of the transformer can be influenced by long-time dust accumulation.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a dry-type transformer. Background Technology

[0002] Dry-type transformers, whose cores and windings are not immersed in insulating oil, mainly rely on air convection for cooling. They are mainly composed of a core made of silicon steel sheets and coils cast with epoxy resin. In current technology, dry-type transformers are usually used with a normally open structure for ventilation and heat dissipation. However, in winter or in low-temperature weather, the ventilation openings are also in a normally open state. Therefore, when ventilating, the airflow will carry dust and adhere to the internal components of the transformer. Over time, the accumulation of dust will affect the working efficiency of the transformer. Summary of the Invention

[0003] This disclosure relates to a dry-type transformer to address the problem that in the prior art, dry-type transformers typically use a normally open structure for ventilation and heat dissipation. However, in winter or in low-temperature weather, the ventilation openings remain open, causing airflow to carry dust that adheres to the internal components of the transformer. Over time, this dust accumulation can affect the transformer's operating efficiency.

[0004] In a first aspect, this disclosure provides a dry-type transformer, specifically comprising: a transformer housing, the transformer housing having a rectangular structure, a wiring module installed on the top of the transformer housing, and a bottom noise reduction plate installed on the inner bottom of the transformer housing; a magnetic circuit module installed on the bottom noise reduction plate; ventilation slots formed on the top of both sides of the transformer housing; a filter plate installed on the inner side of the ventilation slots; guide side plates installed on the bottom and rear side of the transformer housing; and a guide slide plate slidably installed on the outer side of the guide side plate.

[0005] Furthermore, heat dissipation strips and flow guide plates are installed on both sides and the front side of the transformer housing; the flow guide plate has an L-shaped structure and is located at the top and bottom of the heat dissipation strips; a side noise reduction plate is installed on the inner side of the transformer housing; the side noise reduction plate is located outside the magnetic circuit module at the top of the bottom noise reduction plate.

[0006] Furthermore, a guide plate is installed on the inner top of the transformer housing; a guide block is slidably installed on the inner side of the guide plate; the guide block has a cylindrical structure, and a baffle is installed between two guide blocks; the baffle is slidably installed on the inner side of the filter plate.

[0007] Furthermore, two guide slide rods are installed on the inner top of the transformer housing; the guide slide rods are cylindrical in shape, and a movable plate is slidably installed on the outer side of the guide slide rods; a positioning plate is installed on the inner top of the transformer housing.

[0008] Furthermore, a thermal element is installed on the inner side of the positioning plate; both ends of the thermal element are connected to the middle position of the movable plate; support plates are installed on both ends of the movable plate through a rotating shaft; the side ends of the support plates are rotatably installed on the outer side of the guide block.

[0009] Furthermore, a positioning rod is installed on the top of the guide slide plate; the positioning rod is slidably installed on the inner side of the guide side plate; a connecting plate is installed on the outer side of the guide slide plate; and a fixing plate is installed on the side end of the connecting plate.

[0010] Furthermore, mounting holes are provided at the top of both ends of the fixing plate, and a buffer is installed at the bottom of the fixing plate; a fixing bolt is rotatably installed at the middle position of the fixing plate; the inner end of the fixing bolt guides the side of the sliding plate and is installed on the side of the guide side plate.

[0011] This utility model provides a dry-type transformer, which has the following beneficial effects:

[0012] In use, this invention adjusts the position of the baffle according to the internal temperature of the dry-type transformer for ventilation and heat dissipation. When the internal temperature of the transformer shell rises during use, the thermally sensitive element expands and drives the movable plate to push the baffle through the support plate to adjust its position. The higher the internal temperature, the greater the downward movement of the baffle, ensuring that the airflow dissipates heat from the inside of the dry-type transformer in a timely manner. This allows the baffle to be adjusted according to the heat dissipation requirements, preventing the accumulation of large amounts of dust and ensuring the efficient operation of the dry-type transformer.

[0013] Furthermore, the position of the fixing plate can be adjusted according to different installation environments. When using a dry-type transformer, the guide slide and positioning rod can be moved along the guide side plate according to the installation position of the transformer, so that the two fixing plates can be adjusted vertically or horizontally. This allows the fixing plates to be installed in different positions, improving the adaptability of the dry-type transformer installation position and making the installation of the dry-type transformer more convenient. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0018] Figure 2A schematic cross-sectional view of the transformer housing structure of this application is shown;

[0019] Figure 3 A three-dimensional structural diagram of the guide slide rod of this application is shown;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of the movable plate of this application is shown;

[0021] Figure 5 A three-dimensional structural diagram of the guide side plate of this application is shown;

[0022] Figure 6 A three-dimensional structural diagram of the fixing plate of this application is shown;

[0023] List of reference numerals

[0024] 1. Transformer housing; 101. Heat sink; 102. Airflow guide plate; 103. Bottom noise reduction plate; 104. Side noise reduction plate;

[0025] 2. Ventilation slot; 201. Filter plate; 202. Guide plate; 203. Guide block; 204. Baffle; 205. Guide slide bar; 206. Movable plate; 207. Positioning plate; 208. Heat-sensitive component; 209. Support plate;

[0026] 3. Guide side plate; 301. Guide slide plate; 302. Positioning rod; 303. Connecting plate; 304. Fixing plate; 305. Buffer component; 306. Fixing bolt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please refer to Figures 1 to 6 :

[0029] Example 1:

[0030] This utility model proposes a dry-type transformer, comprising: a transformer housing 1, which has a rectangular structure, and a wiring module is installed on the top of the transformer housing 1; a bottom noise reduction plate 103 is installed on the inner bottom of the transformer housing 1; a magnetic circuit module is installed on the bottom noise reduction plate 103; heat dissipation strips 101 and flow guide plates 102 are installed on both sides and the front of the transformer housing 1; the flow guide plate 102 has an L-shaped structure and is located at the top and bottom of the heat dissipation strips 101; a side noise reduction plate 104 is installed on the inner side of the transformer housing 1; the side noise reduction plate 104 is located outside the magnetic circuit module at the top of the bottom noise reduction plate 103.

[0031] In this embodiment of the present disclosure, when the dry-type transformer is in use, heat dissipation strips 101 arranged in an integral manner are installed on the outside of the transformer housing 1 for heat dissipation. The guide plate 102 guides the lateral airflow, so that the airflow flows between the heat dissipation strips 101 after being guided, thereby improving the heat dissipation effect of the transformer housing 1. A bottom noise reduction plate 103 and a side noise reduction plate 104 are provided inside the transformer housing 1 to reduce transformer noise.

[0032] In Example 2, based on Example 1, ventilation slots 2 are provided on the top of both sides of the transformer housing 1; a filter plate 201 is installed on the inner side of the ventilation slots 2; a guide plate 202 is installed on the top of the inner side of the transformer housing 1; a guide block 203 is slidably installed on the inner side of the guide plate 202; the guide block 203 has a cylindrical structure, and a baffle 204 is installed between the two guide blocks 203; the baffle 204 is slidably installed on the inner side of the filter plate 201; two guide slide rods 205 are installed on the top of the inner side of the transformer housing 1; the guide slide rods 205 have a cylindrical structure, and a movable plate 206 is slidably installed on the outer side of the guide slide rods 205; a positioning plate 207 is installed on the top of the inner side of the transformer housing 1; a thermal element 208 is installed on the inner side of the positioning plate 207; both ends of the thermal element 208 are connected to the middle position of the movable plate 206; support plates 209 are installed on both ends of the movable plate 206 through a rotating shaft; the side ends of the support plate 209 rotate... The movable plate 206 is installed on the outside of the guide block 203. When the dry-type transformer is in use, the internal temperature of the transformer shell 1 rises, causing the thermal element 208 installed on the positioning plate 207 to expand. This causes the two ends of the thermal element 208 to push the movable plate 206 to move along the guide slide rod 205. The two ends of the movable plate 206 drive the support plate 209 to move through the rotating shaft. The side end of the support plate 209 moves on the outside of the guide block 203, and the guide block 203 moves along the inside of the guide plate 202. The two guide blocks 203 drive the baffle 204 to move downward on the inside of the filter plate 201. The higher the internal temperature of the transformer shell 1, the greater the downward movement of the baffle 204. The airflow flows through the filter plate 201 inside the ventilation slot 2, which dissipates heat from the inside of the transformer shell 1 in time. If the temperature is low, the baffle 204 blocks the inside of the ventilation slot 2, reducing the problem of dust carried by long-term airflow falling into the inside of the transformer shell 1 and affecting the operation of the transformer.

[0033] In Example 3, based on Example 1, a guide side plate 3 is installed on the bottom and rear side of the transformer housing 1; a guide slide plate 301 is slidably installed on the outer side of the guide side plate 3; a positioning rod 302 is installed on the top of the guide slide plate 301; the positioning rod 302 is slidably installed on the inner side of the guide side plate 3; a connecting plate 303 is installed on the outer side of the guide slide plate 301; a fixing plate 304 is installed on the side end of the connecting plate 303; mounting holes are opened at the top of both ends of the fixing plate 304, and a buffer 305 is installed at the bottom of the fixing plate 304; a fixing bolt 306 is rotatably installed at the middle position of the fixing plate 304; the inner end of the fixing bolt 306 is installed on the side of the guide slide plate 301. On the side of side plate 3, when the dry-type transformer is in use, the position of the fixing plate 304 is adjusted according to the installation environment of the dry-type transformer. The guide slide plate 301 is moved on the outside of the guide side plate 3, which drives the positioning rod 302 to move on the inside of the guide side plate 3. The side of the guide slide plate 301 drives the fixing plate 304 to move at the bottom or rear of the transformer housing 1 through the connecting plate 303, so that the fixing plate 304 is in a vertical or horizontal position. It is fixed by bolts installed in the mounting holes at both ends of the fixing plate 304. The buffer 305 improves the stability of the installation. The position of the guide slide plate 301 is fixed by the fixing bolts 306 to ensure the stability of the installation position of the dry-type transformer.

[0034] The working principle of this embodiment is as follows: During use, heat dissipation bars 101 are installed on the outer side of the transformer housing 1 for heat dissipation. The guide plate 102 guides the lateral airflow. After the airflow is guided, it flows between the heat dissipation bars 101 to improve the heat dissipation effect of the transformer housing 1. When the internal temperature of the transformer housing 1 rises, the thermal element 208 expands. The two ends of the thermal element 208 push the movable plate 206 to move along the guide slide bar 205. The movable plate 206 drives the guide block 203 to move along the inner side of the guide plate 202 through the support plate 209. The two guide blocks 203 drive the baffle 204. The baffle 204 moves downward as the temperature inside the transformer housing 1 increases. The airflow dissipates heat through the filter plate 201 inside the ventilation slot 2. The guide slide 301 moves to the outside of the guide side plate 3, causing the positioning rod 302 to move inside the guide side plate 3. The side of the guide slide 301 moves to the vertical or horizontal position through the connecting plate 303. The position of the guide slide 301 is fixed by the fixing bolts 306. The guide slide 304 is fixed by the bolts installed in the mounting holes at both ends of the fixing plate 304, adapting to different installation environments.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0037] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A dry-type transformer, comprising: A transformer housing (1) is provided with a wiring module installed on the top of the transformer housing (1) and a bottom noise reduction plate (103) installed on the bottom inner side of the transformer housing (1); characterized in that a magnetic circuit module is installed on the bottom noise reduction plate (103); ventilation slots (2) are provided on the top of both sides of the transformer housing (1); A filter plate (201) is installed on the inner side of the ventilation slot (2); a guide side plate (3) is installed on the bottom and rear side of the transformer housing (1); a guide slide plate (301) is slidably installed on the outer side of the guide side plate (3); a guide plate (202) is installed on the top inner side of the transformer housing (1); a guide block (203) is slidably installed on the inner side of the guide plate (202); the guide block (203) is a cylindrical structure, and a baffle (204) is installed between the two guide blocks (203); the baffle (204) is slidably installed on the inner side of the filter plate (201).

2. A dry-type transformer according to claim 1, characterized in that, Heat dissipation strips (101) and flow guide plates (102) are installed on both sides and the front of the transformer housing (1); the flow guide plates (102) are located at the top and bottom of the heat dissipation strips (101); a side noise reduction plate (104) is installed on the inner side of the transformer housing (1); the side noise reduction plate (104) is located outside the top magnetic circuit module of the bottom noise reduction plate (103).

3. A dry-type transformer according to claim 2, characterized in that, Two guide slides (205) are installed on the inner top of the transformer housing (1); the guide slides (205) are cylindrical structures, and a movable plate (206) is slidably installed on the outer side of the guide slides (205); a positioning plate (207) is installed on the inner top of the transformer housing (1).

4. A dry-type transformer according to claim 3, characterized in that, A thermal element (208) is installed on the inner side of the positioning plate (207); the two ends of the thermal element (208) are connected to the middle position of the movable plate (206); the two ends of the movable plate (206) are equipped with support plates (209) through rotating shafts; the side ends of the support plates (209) are rotatably installed on the outside of the guide block (203).

5. A dry-type transformer according to claim 4, characterized in that, A positioning rod (302) is installed on the top of the guide slide plate (301); the positioning rod (302) is slidably installed on the inner side of the guide side plate (3); a connecting plate (303) is installed on the outer side of the guide slide plate (301); a fixing plate (304) is installed on the side end of the connecting plate (303).

6. A dry-type transformer according to claim 5, characterized in that, Mounting holes are provided at the top of both ends of the fixing plate (304), and a buffer (305) is installed at the bottom of the fixing plate (304); a fixing bolt (306) is rotatably installed at the middle position of the fixing plate (304); the side of the inner end guide slide plate (301) of the fixing bolt (306) is installed on the side of the guide side plate (3).

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