A dry-type transformer

Abstract

This utility model relates to the field of dry-type transformer technology and discloses a dry-type transformer, including an outer casing with a door on the front. The main body of the dry-type transformer is housed inside the outer casing. Air intake and heat dissipation mechanisms extend from the left and right sides of the outer casing into the interior, and a protective exhaust mechanism is located on the top of the outer casing. The air intake and heat dissipation mechanisms include an air intake component and a dustproof component. The air intake component is located on the left and right sides of the outer casing and extends into the interior, while the dustproof component is located outside the air intake component. This dry-type transformer uses an intake fan to draw in external air into the intake chamber, which is then cooled by cooling pipes. The cooled air is then introduced into the interior of the outer casing through connecting pipes and blown upwards at an angle by an air blower, ensuring effective cooling. A removable dustproof screen facilitates easy disassembly and cleaning.

Description

Technical Field

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

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer is a transformer whose core and windings are not immersed in insulating oil.

[0003] According to the description in the patent announcement (CN 222015184 U) of a dry-type transformer, "This utility model provides a dry-type transformer, which relates to the field of transformer technology. It includes: a housing, with a heat dissipation component fixedly connected to the inner bottom surface of the housing. In this utility model, during use, by covering the outer surface of the transformer body with an encapsulation, the heat generated by the transformer body during operation is conducted and radiated through the encapsulation. By setting multiple extension plates on the outer surfaces of both sides of the encapsulation, the heat dissipation area of ​​the encapsulation is increased. Through the coordinated use of two sets of forced cooling fans, a conveying pipe, a first air outlet hood, a second air outlet hood, a first guide block, a second guide block, side air holes, and connecting pipes, the transformer body, the encapsulation, and the multiple extension plates on both sides are effectively cooled. This solves the problem in the prior art where frequent use of automatic jacks to lift the transformer core for bottom cooling may cause loose connections and malfunctions, affecting the stability of the dry-type transformer."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] During use, this utility model uses an upward-blowing exhaust hood to cool the transformer and exhausts hot air through the top ventilation holes. However, in actual use, because the exhaust hood blows air directly upwards, it cannot ensure that the cool air reaches the transformer body, thus failing to remove heat from the transformer and failing to guarantee the heat dissipation effect. Furthermore, during exhaust, the top ventilation holes are open, allowing rainwater to easily enter the casing, causing internal water ingress. Therefore, an improved dry-type transformer is needed to solve these problems. Utility Model Content

[0006] The purpose of this invention is to provide a dry-type transformer to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dry-type transformer, including an outer casing, a door on the front of the outer casing, a dry-type transformer body inside the outer casing, air intake and heat dissipation mechanisms extending to the left and right sides of the outer casing, and a protective exhaust mechanism on the top of the outer casing.

[0008] The air intake and heat dissipation mechanism includes an air intake component and a dustproof component. The air intake component is located on the left and right sides of the outer casing and extends into the interior, while the dustproof component is located on the outside of the air intake component.

[0009] The air intake assembly includes an air intake box, which is fixedly installed on the left and right sides of the outer casing. An air blowing frame is fixedly installed on the bottom inner side of the outer casing, located on the front and rear sides of the dry-type transformer. A connecting pipe is fixedly installed between the air blowing frame and the front of the air intake box. A bracket is fixedly installed inside the air intake box. A motor is fixedly installed on the outside of the bracket. An air intake fan is fixedly installed through the output end of the motor through the bracket. A cooler is fixedly installed on the outside of the air intake box. A cooling pipe is fixedly installed on the outside of the cooler and extends into the inside of the air intake box to facilitate the intake of outside air into the air intake box for cooling.

[0010] Preferably, the top of the air blowing frame is an oblique structure facing the main body of the dry-type transformer, and the air inlet box on the right side is fixedly installed to the air blowing frame near the front side through a connecting pipe, and the air inlet box on the left side is fixedly installed to the air blowing frame near the back side through a connecting pipe, so as to facilitate the blowing of cold air onto the main body of the dry-type transformer.

[0011] Preferably, the dustproof component includes a mounting frame, which is fixedly mounted on the back of the air intake box. A dustproof net is movably mounted inside the mounting frame. A fixing frame is fixedly mounted on the top of the air intake box. A sliding plate is slidably mounted inside the fixing frame. A pin is fixedly mounted on the back of the sliding plate. A fixing spring is fixedly mounted between the front of the sliding plate and the inner wall of the fixing frame. This facilitates preventing external dust from entering the air intake box through the dustproof net and also facilitates the disassembly and cleaning of the dustproof net.

[0012] Preferably, a through hole is provided at the corresponding position of the dustproof net and the pin, and the pin is inserted into the through hole to facilitate the fixing of the dustproof net.

[0013] Preferably, the top of the fixed frame is provided with a through groove, and the top of the sliding plate extends through the through groove to the outside, so that the sliding plate can slide through the fixed frame.

[0014] Preferably, the protective exhaust mechanism includes a support rod, which is fixedly installed on the top of the outer casing. A canopy is fixedly installed at the end of the support rod away from the outer casing. A heat dissipation hole is provided on the top of the outer casing. A first magnet is fixedly installed on the top of the outer casing. A flexible protective net is movably installed on the top of the outer casing. A second magnet is fixedly installed at the bottom of the flexible protective net to facilitate protection of the top of the outer casing.

[0015] Preferably, the top of the outer casing has a groove, and the flexible protective net is movably installed inside the groove. The first magnet and the second magnet have opposite magnetic properties, which facilitates fixing the flexible protective net to the top of the outer casing.

[0016] Compared with the prior art, this utility model provides a dry-type transformer, which has the following beneficial effects:

[0017] This dry-type transformer, through its air intake and heat dissipation mechanism, draws in external air into the air intake box via an air intake fan during operation. The air is then cooled through cooling pipes. The cooled air is then introduced into the interior of the outer casing through connecting pipes and blown upwards at an angle by an air blower, ensuring the cooling effect on the main body of the dry-type transformer. At the same time, the detachable dustproof screen facilitates its removal and cleaning.

[0018] This dry-type transformer, through its protective venting mechanism, protects the top ventilation holes from external rainwater entering the outer casing during use. At the same time, the magnetic flexible protective net makes it easy to disassemble and clean. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the external structure of the air intake and heat dissipation mechanism of this utility model;

[0023] Figure 4 This is a cross-sectional view of the air intake and heat dissipation mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the external structure of the bracket and connected mechanism of this utility model;

[0025] Figure 6 This is an exploded view of the dustproof component of this utility model;

[0026] Figure 7 This is an exploded structural diagram of the canopy and connected mechanisms of this utility model.

[0027] In the diagram: 1. Outer casing; 2. Door; 3. Dry-type transformer body; 4. Air intake and heat dissipation mechanism; 41. Air intake assembly; 411. Air intake box; 412. Air blower; 413. Connecting pipe; 414. Bracket; 415. Motor; 416. Air intake fan; 417. Refrigerator; 418. Cooling pipe; 42. Dustproof assembly; 421. Mounting frame; 422. Dustproof net; 423. Fixing frame; 424. Sliding plate; 425. Pin; 426. Fixing spring; 5. Protective exhaust mechanism; 51. Support rod; 52. Canopy; 53. Heat dissipation hole; 54. First magnet; 55. Flexible protective net; 56. Second magnet. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1:

[0030] To achieve effective heat dissipation for the dry-type transformer body 3, please refer to... Figure 1-6 This utility model provides a technical solution: a dry-type transformer, including an outer casing 1, a door 2 on the front of the outer casing 1, a dry-type transformer body 3 inside the outer casing 1, air intake and heat dissipation mechanisms 4 extending to the left and right sides of the outer casing 1, and a protective exhaust mechanism 5 on the top of the outer casing 1.

[0031] The air intake and heat dissipation mechanism 4 includes an air intake component 41 and a dustproof component 42. The air intake component 41 is located on the left and right sides of the outer casing 1 and extends into the interior. The dustproof component 42 is located outside the air intake component 41.

[0032] The air intake assembly 41 includes an air intake box 411, which is fixedly installed on the left and right sides of the outer casing 1. An air blowing frame 412 is fixedly installed on the bottom inner side of the outer casing 1, located on the front and rear sides of the dry-type transformer. A connecting pipe 413 is fixedly installed between the air blowing frame 412 and the front of the air intake box 411. A bracket 414 is fixedly installed inside the air intake box 411. A motor 415 is fixedly installed outside the bracket 414. An air intake fan 416 is fixedly installed through the output end of the motor 415 through the bracket 414. A cooler 417 is fixedly installed on the outside of the air intake box 411. A cooling pipe 418 is fixedly installed on the outside of the cooler 417 and extends into the inside of the air intake box 411 to facilitate the intake of outside air into the air intake box 411 for cooling.

[0033] Furthermore, the top of the air blower 412 is an inclined structure facing the dry-type transformer body 3, and the right air inlet box 411 is fixedly installed to the air blower 412 near the front side through the connecting pipe 413, and the left air inlet box 411 is fixedly installed to the air blower 412 near the back side through the connecting pipe 413, so that cold air can be blown onto the dry-type transformer body 3.

[0034] Furthermore, the dustproof component 42 includes a mounting frame 421, which is fixedly mounted on the back of the air intake box 411. A dustproof net 422 is movably mounted inside the mounting frame 421. A fixing frame 423 is fixedly mounted on the top of the air intake box 411. A sliding plate 424 is slidably mounted inside the fixing frame 423. A pin 425 is fixedly mounted on the back of the sliding plate 424. A fixing spring 426 is fixedly mounted between the front of the sliding plate 424 and the inner wall of the fixing frame 423. This facilitates preventing external dust from entering the air intake box 411 through the dustproof net 422 and also facilitates the disassembly and cleaning of the dustproof net 422.

[0035] Furthermore, a through hole is provided at the corresponding position of the dustproof net 422 and the pin 425, and the pin 425 is inserted into the through hole to facilitate the fixing of the dustproof net 422.

[0036] Furthermore, the top of the fixed frame 423 is provided with a through groove, and the top of the sliding plate 424 extends through the through groove to the outside, so that the sliding plate 424 can slide through the fixed frame 423. Example 2:

[0037] To protect the top of the outer casing 1, please refer to [link / reference needed]. Figure 7Furthermore, in conjunction with Embodiment 1, the protective exhaust mechanism 5 includes a support rod 51, which is fixedly installed on the top of the outer casing 1. A canopy 52 is fixedly installed at the end of the support rod 51 away from the outer casing 1. A heat dissipation hole 53 is provided on the top of the outer casing 1. A first magnet 54 is fixedly installed on the top of the outer casing 1. A flexible protective net 55 is movably installed on the top of the outer casing 1. A second magnet 56 is fixedly installed at the bottom of the flexible protective net 55 to facilitate protection of the top of the outer casing 1.

[0038] Furthermore, a groove is provided on the top of the outer casing 1, and the flexible protective net 55 is movably installed inside the groove. The first magnet 54 and the second magnet 56 have opposite magnetic properties, which makes it easy to fix the flexible protective net 55 to the top of the outer casing 1.

[0039] In actual operation, when this device is used, the motor 415 drives the intake fan 416 to rotate, so that the intake fan 416 draws external air into the air intake box 411. The air is cooled down by the cooling pipe 418 inside the air intake box 411. Then, the cooled air is sent into the air blowing frame 412 through the connecting pipe 413. The air blowing frame 412 blows the cold air onto the dry-type transformer body 3 to cool it down, and blows the hot air upwards and discharges it out of the outer casing 1 through the heat dissipation hole 53.

[0040] By pulling the sliding plate 424, the sliding plate 424 moves the pin 425, causing the pin 425 to separate from the dustproof net 422. Then, the dustproof net 422 is pulled out from the mounting frame 421, cleaned, and then reinserted into the mounting frame 421. Then, the fixing spring 426 presses the sliding plate 424, causing the pin 425 on the sliding plate 424 to insert into the dustproof net 422, thus fixing the dustproof net 422.

[0041] By removing the flexible protective net 55, the second magnet 56 on the flexible protective net 55 is separated from the first magnet 54. After cleaning the flexible protective net 55, the flexible protective net 55 is placed in the top groove of the outer box 1 and fixed by adsorption between the second magnet 56 and the first magnet 54.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A dry-type transformer, comprising an outer casing (1), characterized in that: The outer casing (1) has a door (2) on the front, a dry-type transformer body (3) is installed inside the outer casing (1), an air intake and heat dissipation mechanism (4) extends to the left and right sides of the outer casing (1) and a protective exhaust mechanism (5) is installed on the top of the outer casing (1). The air intake heat dissipation mechanism (4) includes an air intake component (41) and a dustproof component (42). The air intake component (41) is located on the left and right sides of the outer casing (1) and extends into the interior. The dustproof component (42) is located outside the air intake component (41). The air intake assembly (41) includes an air intake box (411), which is fixedly installed on the left and right sides of the outer casing (1). An air blowing frame (412) is fixedly installed on the bottom inner side of the outer casing (1) on the front and rear sides of the dry-type transformer. A connecting pipe (413) is fixedly installed between the air blowing frame (412) and the front of the air intake box (411). A bracket (414) is fixedly installed inside the air intake box (411). A motor (415) is fixedly installed outside the bracket (414). An air intake fan (416) is fixedly installed through the bracket (414) at the output end of the motor (415). A cooler (417) is fixedly installed on the outside of the air intake box (411). A cooling pipe (418) is fixedly installed outside the cooler (417) and extends to the inside of the air intake box (411).

2. A dry-type transformer according to claim 1, characterized in that: The top of the air-blowing frame (412) is an oblique structure facing the dry-type transformer body (3), and the air inlet box (411) on the right side is fixedly installed with the air-blowing frame (412) near the front side through the connecting pipe (413), and the air inlet box (411) on the left side is fixedly installed with the air-blowing frame (412) near the back side through the connecting pipe (413).

3. A dry-type transformer according to claim 1, characterized in that: The dustproof component (42) includes a mounting frame (421), which is fixedly mounted on the back of the air intake box (411). A dustproof net (422) is movably mounted inside the mounting frame (421). A fixing frame (423) is fixedly mounted on the top of the air intake box (411). A sliding plate (424) is slidably mounted inside the fixing frame (423). A pin (425) is fixedly mounted on the back of the sliding plate (424). A fixing spring (426) is fixedly mounted between the front of the sliding plate (424) and the inner wall of the fixing frame (423).

4. A dry-type transformer according to claim 3, characterized in that: The dustproof net (422) and the corresponding position of the pin (425) are provided with through holes, and the pin (425) is inserted into the through hole.

5. A dry-type transformer according to claim 4, characterized in that: The top of the fixed frame (423) is provided with a through groove, and the top of the sliding plate (424) extends to the outside through the through groove.

6. A dry-type transformer according to claim 1, characterized in that: The protective exhaust mechanism (5) includes a support rod (51), which is fixedly installed on the top of the outer casing (1). A canopy (52) is fixedly installed on the end of the support rod (51) away from the outer casing (1). A heat dissipation hole (53) is opened on the top of the outer casing (1). A first magnet (54) is fixedly installed on the top of the outer casing (1). A flexible protective net (55) is movably installed on the top of the outer casing (1). A second magnet (56) is fixedly installed at the bottom of the flexible protective net (55).

7. A dry-type transformer according to claim 6, characterized in that: The top of the outer casing (1) is provided with a groove, and the flexible protective net (55) is movably installed inside the groove. The first magnet (54) and the second magnet (56) have opposite magnetic properties.

Images