A high energy efficiency distribution transformer core structure

Abstract

The application provides a high-energy-efficiency power distribution transformer body structure and belongs to the technical field of transformers, comprising clamps, a pair of which is arranged above and below, a plurality of coils are arranged between the two pairs of clamps, each coil is connected with a low-voltage lead row one, each low-voltage lead row is connected with a wiring board two, and each coil is connected with a low-voltage lead row two. The application solves the problem that the traditional power distribution transformer uses steel clamps as a body support structure, which produces significant eddy current loss and stray loss under the action of an alternating magnetic field during operation, reduces the energy efficiency of the transformer, leads to the rise of production cost, and the air fan is connected with the bottom of the transformer by using fasteners, which has the problems of low assembly efficiency, the need to twist all fasteners for later maintenance cleaning and replacement, and the need for special instruments for complicated operation.

Description

Technical Field

[0001] This invention belongs to the field of transformer technology, specifically relating to a high-efficiency distribution transformer body structure. Background Technology

[0002] Distribution transformers are the core equipment for power distribution in power systems, and their energy efficiency level directly affects the overall loss of the power grid. With the advancement of the national "dual carbon" goals and the continuous upgrading of energy efficiency standards, higher requirements have been put forward for the load loss control of distribution transformers.

[0003] Traditional distribution transformers generally use steel clamps as the support structure for the transformer body. During operation, significant eddy current losses and stray losses are generated under the action of alternating magnetic fields, which reduces the energy efficiency of the transformer and leads to increased production costs. At the same time, the transformer generates a lot of heat during operation, which requires forced cooling by air circulation. The ventilation fan is usually connected to the bottom of the transformer with fasteners. During assembly, multiple fasteners need to be tightened one by one, which is inefficient. During later maintenance, cleaning and other operations, all fasteners need to be unscrewed, which is cumbersome and requires special equipment. Therefore, a high-efficiency distribution transformer body structure is proposed. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the existing technology: Traditional distribution transformers use steel clamps as the body support structure, which will generate significant eddy current losses and stray losses under the action of alternating magnetic fields during operation, which not only reduces the transformer energy efficiency but also increases the production cost. At the same time, their ventilation fans are mostly connected to the bottom of the transformer with fasteners, which has the disadvantages of low assembly efficiency, and the need to unscrew all fasteners for later maintenance, cleaning and replacement, which is cumbersome and requires special tools.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-efficiency distribution transformer body structure, including clamps, a pair of clamps installed at the top and bottom, a plurality of coils installed between the two pairs of clamps, a low-voltage lead busbar connected to each coil, a terminal block connected to each low-voltage lead busbar, a common copper busbar connected to the plurality of low-voltage lead busbars, a terminal block connected to the low-voltage lead busbar on the right side, a pair of clamps connected by pre-tightening members installed on both sides, a vertical pair of clamps also connected by pre-tightening members, a bottom pad plate installed on the lower wall of the clamps on the bottom side, mounting steel bars installed on both sides of the bottom wall of the bottom pad plate, and iron cores installed between the clamps on the top and bottom sides of the coils; The preload includes a main rod that passes through one of a pair of clamps, a threaded rod fixed to one side of the rear of the main rod, and a nut threadedly connected to the other of the pair of clamps. A ventilation fan is installed on the underside of the base plate, and a ventilation opening is reserved in the central area of ​​the base plate. A rectangular frame is installed on the upper part of the inner wall of the ventilation opening, and assembly components are installed at the four corners of the rectangular frame.

[0007] Furthermore, the base plate is connected to the ventilation fan via an assembly assembly.

[0008] Furthermore, the assembly component includes a main body, which contains a rotating rod that is rotatably connected to the rectangular frame. The rotating rod is installed at the corner of the rectangular frame. A screw is fixedly installed at the end of the rotating rod. A constraint rod is installed at the end of the screw. A baffle is installed at the end of the constraint rod. A notch is reserved on the peripheral wall at the end of each rotating rod. A constraint cavity is reserved on each constraint rod.

[0009] Furthermore, the constraint cavity includes a triangular opening, a vertical opening, and a magnet. The vertical opening is located above the triangular opening and communicates with it. The magnet is installed at the lower corner of the triangular opening.

[0010] Furthermore, the two assembly components are a pair, and the same control bar is installed on the pair of assembly components. The control bar has round holes reserved on both sides and is initially fitted around the periphery of the corresponding constraint bar. An opening is reserved in the central area of ​​the control bar.

[0011] Furthermore, the assembly includes an auxiliary limiting part, which includes a second magnet. The second magnet is installed on both sides of the corresponding control strip on the upper wall of the ventilator. Side extension plates are installed on both sides of the second magnet, and elastic telescopic rods are installed on the side extension plates. Each elastic telescopic rod is located on the side of the corresponding control strip. The second magnet is positioned above the opening of the control strip. A sliding opening is provided on the side of the circular hole on the control strip near the opening. A sliding cylinder is slidably installed in the sliding opening. A sliding rod is slidably connected inside the sliding cylinder. A circular protrusion is installed on the inner wall of the sliding cylinder. A sliding ring is installed on the part of the sliding rod at the circular protrusion. An elastic element is installed on the sliding ring. One side of the elastic element is connected to the sliding ring, and the other side of the elastic element is connected to the wall surface of the circular protrusion. The side of the sliding rod close to the second magnet is adapted to the inner wall of the sliding cylinder. A contact platform is installed on the side of the sliding rod away from the second magnet. Movable spheres are installed on both sides of the contact platform. An opening is reserved on the sliding cylinder to fit the spheres.

[0012] Furthermore, a sliding ring is provided around the periphery of the sliding cylinder, and the sliding cylinder is slidably connected to the sliding port via the sliding ring.

[0013] Furthermore, the upper side of the magnet near the sliding rod is a slope, and the lower side is a vertical wall. A trapezoidal cavity is reserved on the contact platform, and the slope of the cavity contacts the sphere.

[0014] Furthermore, the size of the circular hole exceeds that of the constraint rod, and the size of the circular hole is the same as that of the rotating rod.

[0015] Furthermore, each of the four corners of the ventilation fan has a pre-reserved connection port, which is compatible with the screw.

[0016] The beneficial effects of this invention are as follows: 1. By using wooden clamps and bottom pads as the transformer body support structure, this invention eliminates the eddy current loss and stray loss generated by traditional steel clamps in alternating magnetic fields, thereby improving the energy efficiency of the transformer.

[0017] 2. This invention achieves tool-free assembly and disassembly of the ventilation fan through a spiral automatic assembly component. The control bar drives the assembly components at the four corners to move. During assembly, the ventilation fan is automatically pushed to complete the rotation of the rotating rod and the circumferential rotation of the rotating rod is restricted to achieve the assembly of the ventilation fan. During disassembly, the control bar can be operated to unlock the fan without the need for special instruments.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a bottom-view structural diagram of an embodiment of the present invention; Figure 3 This is a top view of the bottom pad structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly components and rectangular frame structure according to an embodiment of the present invention; Figure 5 Embodiments of the present invention Figure 4 Schematic diagram of the cross-sectional structure at the assembly component; Figure 6 Embodiments of the present invention Figure 4 Another perspective structural diagram; Figure 7 This is a schematic diagram of the main body structure according to an embodiment of the present invention; Figure 8 Embodiments of the present invention Figure 7 Schematic diagram of cross-section structure; Figure 9 Embodiments of the present invention Figure 8 Schematic diagram of the structure at point A; Figure 10 This is a schematic diagram of the sliding cylinder structure according to an embodiment of the present invention; Reference numerals: 100, coil; 200, clamp; 301, main rod; 302, threaded rod; 401, low-voltage lead busbar one; 402, terminal block one; 403, terminal block two; 404, copper busbar; 405, low-voltage lead busbar two; 500, iron core; 600, assembly steel bar; 700, bottom pad; 701, vent; 702, rectangular frame; 801, rotating rod; 802, bayonet; 803, screw; 804, constraint rod; 8 05. Baffle; 806. Constraint cavity opening; 8061. Triangular opening; 8062. Vertical opening; 8063. Magnet one; 901. Magnet two; 902. Sliding cylinder; 9021. Sliding ring; 903. Sliding rod; 905. Elastic element; 906. Contact platform; 907. Through port; 908. Sphere; 909. Side extension plate; 9010. Elastic telescopic rod; 1100. Control bar; 1200. Ventilation fan; 1201. Connection port. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Reference Figures 1-10This invention proposes a high-efficiency distribution transformer body structure, including clamps 200. The clamps 200 are characterized by having a pair of clamps mounted on the top and bottom, with a plurality of coils 100 positioned between the two pairs of clamps 200. Each coil 100 is connected to a low-voltage lead busbar 401, each low-voltage lead busbar 401 is connected to a terminal block 403, and each coil 100 is connected to a low-voltage lead busbar 405. The plurality of low-voltage lead busbars 405 are connected to... There is a copper busbar 404, and a terminal block 402 is connected to the low-voltage lead busbar 405 on the right side. A pair of clamps 200 are connected by pre-tightening members installed on both sides. A pair of vertical clamps 200 are also connected by pre-tightening members. A bottom pad 700 is installed on the lower wall of the clamp 200 on the bottom side. A mounting steel strip 600 is installed on both sides of the bottom wall of the bottom pad 700. An iron core 500 located between the clamps 200 is installed on both the upper and lower sides of the coil 100. The preload includes a main body rod 301, which passes through one of a pair of clamps 200. A threaded rod 302 is fixed to the rear side of the main body rod 301, and the threaded rod 302 passes through the other of the pair of clamps 200 and is threadedly connected to a nut. A ventilation fan 1200 is installed on the lower side of the base plate 700. A ventilation port 701 is reserved in the central area of ​​the base plate 700. A rectangular frame 702 is installed on the upper part of the inner wall of the ventilation port 701. Assembly components are installed at the four corners of the rectangular frame 702. The upper and lower pairs of clamps 200 form the core frame of the device body. Through the main body rod 301 and threaded rod 302 of the pre-tightening component, and the nuts, the iron core 500 and coil 100 are firmly clamped, ensuring stability during operation. The coil 100 converts electrical energy through electromagnetic induction. Low-voltage electrical energy is output through low-voltage lead busbar 1 401 and terminal block 2 403, while high-voltage electrical energy is collected through low-voltage lead busbar 2 405 and copper busbar 404 and then input or output through terminal block 1 402. The bottom pad 700 bears the overall weight of the device body, and the steel bars 60 are assembled. 0 is used for the assembly of the transformer and the external cabinet. The vent 701 provides cooling conditions for the inside of the transformer. The rectangular frame 702 provides an assembly base for the assembly components of the ventilation fan 1200. The clamp 200 and the bottom pad 700 are made of wood, which eliminates the generation of harmful losses, further reduces the transformer load loss, and enhances the transformer energy efficiency level. Alternatively, it reduces the amount of copper material used while keeping the loss unchanged, thus reducing production costs. The low-voltage lead bus 401 is led out from the inside of the clamp 200 and clamped, eliminating the need for a low-voltage clamping component.

[0025] The base plate 700 is connected to the ventilation fan 1200 via an assembly component. The assembly component serves as a basic assembly component, achieving a rigid, assemblable connection between the base plate 700 and the ventilation fan 1200. This ensures the stability of the ventilation fan 1200 during operation and facilitates its maintenance and cleaning in the future, without the need to disassemble the main structure of the transformer.

[0026] The assembly component includes a main body, which contains a rotating rod 801 rotatably connected to a rectangular frame 702. The rotating rod 801 is installed at the corner of the rectangular frame 702. A screw 803 is fixedly installed at the end of the rotating rod 801, and a constraint rod 804 is installed at the end of the screw 803. The screw 803 has threaded grooves, and a baffle 805 is installed at the end of the constraint rod 804. Each rotating rod 801 has a pre-drilled notch 802 on its peripheral wall, and each constraint rod 804 has a pre-drilled constraint cavity 806. When assembling, the screw 803 is aligned with the connection port 1201 of the ventilator 1200. The inner wall of the connection port 1201 is provided with a threaded guide cavity that matches the threaded pattern. When the ventilator 1200 is pushed toward the 700 position, the screw 803 can rotate through the cooperation of the screw 803 and the connection port 1201, allowing the screw 803 to rotate and move into the connection port 1201 to achieve initial fixation. The constraint rod 804 is used to pass through the control bar 1100, and the constraint cavity 806 provides a mating point for subsequent auxiliary restrictions.

[0027] The constraint cavity 806 includes a triangular opening 8061, a vertical opening 8062, and a magnet 8063. The vertical opening 8062 is located above and communicates with the triangular opening 8061. The magnet 8063 is installed at the lower corner of the triangular opening 8061. Initially, the control bar 1100, in conjunction with the auxiliary limiting part, is engaged in the area of ​​the triangular opening 8061 of the constraint cavity 806. The magnet 8063 pulls the sliding cylinder 902 to move towards the position of the constraint rod 804. This restricts the position of the control bar 1100 at the constraint cavity 806, so that it can assist in the assembly of the ventilation fan 1200. When the fan 1200 is assembled, the magnet 901 and the elastic telescopic rod 9010 on the fan 1200 are activated. The elastic telescopic rod 9010 presses against the control bar 1100 and is in its normal state, causing the auxiliary limiting part on the control bar 1100 to move from the position of the triangular opening 8061 to the position of the vertical opening 8062. This prevents the magnet 8063 from pulling the sliding cylinder 902. Then the magnet 901 pulls the sliding cylinder 902, causing the sliding cylinder 902 to move towards the position of the magnet 901 and separate from the constraint rod 804. This facilitates the subsequent movement of the control bar 1100 by the fan 1200.

[0028] The front and rear assembly components are a pair, and the same control bar 1100 is installed on the pair of assembly components. The control bar 1100 has round holes on both sides. Initially, the control bar 1100 covers the periphery of the corresponding constraint bar 804 through the round holes. The central area of ​​the control bar 1100 has an opening. The opening is used to provide displacement space for the magnet 2 901. A single control bar 1100 acts on both the front and rear main parts at the same time. When the control bar 1100 is initially assembled and when it is subsequently separated, it is located at the constraint cavity 806 of the constraint bar 804 to ensure that it is conducive to subsequent assembly and separation.

[0029] The assembly includes an auxiliary limiting part, which includes a second magnet 901. The second magnet 901 is installed on both sides of the corresponding control strip 1100 on the upper wall of the ventilation fan 1200. Side extension plates 909 are installed on both sides of the second magnet 901, and elastic telescopic rods 9010 are installed on each side extension plate 909. Each elastic telescopic rod 9010 is located on the side of the corresponding control strip 1100. The second magnet 901 is located above the opening of the control strip 1100. A sliding opening is provided on the side of the circular hole near the opening of the control strip 1100. A sliding cylinder 902 is slidably installed in the sliding opening. A sliding rod 903 is slidably connected inside the sliding cylinder 902. A circular protrusion is installed on the inner wall of the sliding cylinder 902, and the sliding rod 903 is located at the circular protrusion. Partially equipped with a sliding ring, on which an elastic element 905 is mounted. One side of the elastic element 905 is connected to the sliding ring, and the other side is connected to the wall of the ring-shaped protrusion. The side of the sliding rod 903 near the magnet 901 is fitted with the inner wall of the sliding cylinder 902. The side of the sliding rod 903 away from the magnet 901 is equipped with a contact platform 906. Movable balls 908 are mounted on both sides of the contact platform 906. The sliding cylinder 902 has a pre-reserved opening 907 that fits the balls 908. When the control bar 1100 slides to the vertical opening 8062, the magnet 901 pulls the sliding cylinder 902 to move in that direction. This allows the sliding cylinder 902 to avoid the constraint rod 804 and the screw 803, without hindering the movement of the control bar 1100. When the rear ventilation fan 1200 moves to the position of the screw 803, the screw 803 engages with the connecting port 1201, and the screw 803 rotates. As it approaches the rotating rod 801, the thickness of the sliding cylinder 902 plus the protruding part of the ball 908 exceeds the size of the bayonet 802, preventing the sliding cylinder 902 from entering the bayonet 802. At this time, force is simultaneously applied to the control bar 1100 and the ventilation fan 1200. As the control bar 1100 approaches the ventilation fan 1200, the elastic telescopic rod 9010 shortens, and the magnet 901 on the ventilation fan 1200 presses the sliding rod 903, causing it to move into the sliding cylinder 902. This prevents the circular cavity slope of the contact platform 906 from contacting the ball 908, allowing the ball 908 to retract into the contact platform 901. In the space between the sliding cylinder 902 and the 6th sliding cylinder 902, when the sliding cylinder 902 moves to the side of the rotating rod 801, it aligns with the bayonet 802. At this time, the control bar 1100 is released, and the ventilation fan 1100 remains stationary in the position of the threaded rod 803. Under the reset action of the elastic telescopic rod 9010, the control bar 1100 is pulled to move and lock onto the rotating rod 801, while the sliding cylinder 902 enters the bayonet 802, thus constraining the bayonet 802. This prevents the rotating rod 801 from rotating, thereby locking the screw 803 and the connecting port 1201, thus restricting the ventilation fan 1200 and ensuring a stable connection between the ventilation fan 1200 and the assembly component. Under the reset action of the elastic telescopic rod 9010, the control bar 1100 moves upward.The outer cylinder 902 is moved from the vertical wall of the second magnet 901 to the slope. Under the reset action of the elastic element 905, the sliding rod 903 is moved towards the area of ​​the second magnet 901. This causes the contact platform 906 to protrude from the ball 908 and lock into the bayonet 802, achieving further constraint. During separation, the control bar 1100 is moved towards the direction of the ventilation fan 1200. The control bar 1100 pulls the sliding cylinder 902, causing it to move towards the vertical surface of the second magnet 901. At the same time, the ball 908 is retracted into the sliding cylinder 902, reducing friction. Thus, the sliding cylinder 902 disengages from the bayonet 802, removing the restriction on the rotating rod 801. This allows the screw 803 to rotate when the ventilation fan 1200 is moved, enabling the ventilation fan 1200 to separate.

[0030] A sliding ring 9021 is installed around the periphery of the sliding cylinder 902. The sliding cylinder 902 is slidably connected to the sliding port via the sliding ring 9021. The sliding ring 9021 cooperates with the sliding port of the control bar 1100 to ensure that the sliding cylinder 902 can slide smoothly along the sliding port.

[0031] The upper side of the magnet 901 that approaches the sliding rod 903 is a slope, and the lower side is a vertical wall. The contact platform 906 has a pre-reserved ring-shaped cavity with a trapezoidal cross-section. The slope of the ring-shaped cavity abuts against the ball 908. The magnet 901 can pull the sliding rod 903 to approach smoothly and be restricted. When the ventilation fan 1200 pulls the magnet 901 to different positions on the control bar 1100, it has different effects on the sliding cylinder 902 and the sliding rod 903. During the displacement, the trapezoidal ring-shaped cavity of the contact platform 906 pushes the ball 908 outward through the squeezing action of the slope, so that the ball 908 abuts tightly against the inner wall of the bayonet 802, achieving a reliable clamping effect.

[0032] The size of the circular hole exceeds that of the constraint rod 804, and the size of the circular hole is the same as that of the rotating rod 801. The size of the circular hole of the control bar 1100 exceeds that of the constraint rod 804, which facilitates the separation, inspection and assembly of the control bar 1100. When the control bar 1100 is moved to the position of the rotating rod 801, the size of the circular hole matches that of the rotating rod 801, which can pull the sliding cylinder 902 to move into the bayonet 802.

[0033] The ventilation fan 1200 has four corners with pre-drilled connection ports 1201. The connection ports 1201 are compatible with the screws 803. The connection ports 1201 are fitted with spiral patterns that match the screws 803. The connection between the ventilation fan 1200 and the base plate 700 is achieved through the engagement of the screws 803 and the connection ports 1201. At the same time, the screws 803 can be driven to rotate when the ventilation fan 1200 moves.

[0034] The specific implementation method is as follows: The upper and lower pairs of wooden clamps 200 form the core support frame of the device body through horizontal and vertical pre-tightening members, which firmly clamps the iron core 500 and the coil 100. The coil 100 realizes the conversion of electrical energy through electromagnetic induction. The low-voltage electrical energy is output through the low-voltage lead busbar 401 and the terminal block 403. The high-voltage electrical energy is collected through the low-voltage lead busbar 405 and the copper busbar 404 and then input or output through the terminal block 402. Initially, the control bar 1100 covers the constraint bar 804 and is locked in the triangular opening 8061 area of ​​the constraint cavity 806. The magnet 8063 pulls the sliding cylinder 902 to move towards the constraint bar 804 area, restricting the position of the control bar 1100 and preparing for the automatic assembly of the ventilation fan 1200. Align the four connection ports 1201 of the ventilation fan 1200 with the corresponding screws 803, and push the ventilation fan 1200 into the area of ​​the base plate 700: The screw 803 engages with the connecting port 1201 with a threaded guide cavity, and automatically rotates and twists into the connecting port 1201 under the action of thrust, realizing the initial assembly of the ventilation fan 1200. The elastic telescopic rod 9010 on the ventilation fan 1200 acts synchronously on the control bar 1100, causing it to move from the triangular opening 8061 to the vertical opening 8062, so that the magnet 8063 does not pull the sliding cylinder 902. The magnet 901 then pulls the sliding cylinder 902 to separate from the constraint rod 804, avoiding the screw 803 and the constraint rod 804, ensuring that the control bar 1100 can smoothly move along the vertical opening 8062 to the position of the rotating rod 801; The round hole of the control bar 1100 matches and engages with the size of the rotating rod 801. At this time, the elastic element 905 is in the normal state, and the ball 908 protrudes part of its body from the through port 907, causing the length between the two sides of the ball 908 in the sliding cylinder 902 to exceed the size of the bayonet 802, thus preventing it from entering the bayonet. The ventilation fan 1200 and the control bar 1100 are displaced on the screw 803. When they are displaced to a position close to the rotating rod 801, force is applied to the control bar 1100 and the ventilation fan 1200, and the control bar 1100 approaches the ventilation fan 1200. The elastic telescopic rod 9010 will shorten, while the magnet 2 901 on the ventilation fan 1200 will press the sliding rod 903, causing the sliding rod 903 to move into the sliding cylinder 902, pressing the elastic element 905. As the contact platform 906 moves with the sliding rod 903, the slope of its trapezoidal cavity no longer presses against the ball 908. The ball 908 retracts into the gap between the contact platform 906 and the sliding cylinder 902. Then, the ventilation fan 1200 moves. When the sliding cylinder 902 aligns with the latch 802 on the rotating rod 801, the external force on the control bar 1100 is released. Under the reset action of the elastic telescopic rod 9010, the control bar 1100 moves toward the latch 802. The sliding cylinder 902 can smoothly engage with the latch 802 of the rotating rod 801, thereby achieving circumferential constraint on the rotating rod 801, preventing the screw 803 from rotating, and completing the first-level restriction of the ventilation fan 1200. The elastic telescopic rod 9010 resets and pushes the control bar 1100 to move, sliding from the vertical wall of the magnet 2 901 to the slope. The elastic element 905 resets, the traction sliding rod 903 resets, and the contact platform 906 once again squeezes the ball 908 through the slope to protrude from the opening 907 and firmly locks it in the inner wall of the bayonet 802 for further restriction. When separating the ventilation fan 1200: The control bar 1100 on both sides moves towards the area of ​​the ventilation fan 1200, causing it to pull the sliding cylinder 902 to move towards the vertical wall of the magnet 901. The magnet 901 then presses the sliding bar 903 inward again, and the ball 908 retracts into the sliding cylinder 902, reducing friction with the bayonet 802. At the same time, the sliding cylinder 902 disengages from the bayonet 802, releasing the circumferential restriction on the rotating rod 801; Pulling the ventilation fan 1200 outward causes the connecting port 1201 to pull the screw 803 in the opposite direction, allowing the screw 803 to unscrew from the connecting port 1201. This allows the ventilation fan 1200 to be quickly separated from the transformer body without disassembling any fasteners, facilitating maintenance and other operations of the ventilation fan 1200.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-efficiency distribution transformer body structure, comprising a clamp (200), characterized in that, The clamps (200) are provided with a pair at the top and a pair at the bottom. Several coils (100) are provided between the two pairs of clamps (200). Each coil (100) is connected to a low-voltage lead busbar (401). Each low-voltage lead busbar (401) is connected to a terminal block (403). Each coil (100) is connected to a low-voltage lead busbar (405). Several low-voltage lead busbars (405) are connected to the same copper busbar (404). The low-voltage lead busbar on the right side is... A terminal block (402) is connected to the second wire strip (405). A pair of clamps (200) are connected by pre-tightening members installed on both sides. A pair of vertical clamps (200) are also connected by pre-tightening members. A bottom pad (700) is installed on the lower wall of the clamp (200) on the bottom side. A mounting steel strip (600) is installed on both sides of the bottom wall of the bottom pad (700). An iron core (500) is installed between the clamps (200) on both the upper and lower sides of the coil (100). The preload includes a main rod (301) that passes through one of a pair of clamps (200), and a threaded rod (302) is fixed to one of the rear sides of the main rod (301). The threaded rod (302) passes through the other of the pair of clamps (200) and is threadedly connected to a nut. A ventilation fan (1200) is installed on the lower side of the base plate (700). A ventilation port (701) is reserved in the central area of ​​the base plate (700). A rectangular frame (702) is installed on the upper part of the inner wall of the ventilation port (701). Assembly components are installed at the four corners of the rectangular frame (702).

2. The high-efficiency distribution transformer body structure according to claim 1, characterized in that: The base plate (700) is connected to the ventilation fan (1200) via an assembly assembly.

3. The high-efficiency distribution transformer body structure according to claim 2, characterized in that: The assembly component includes a main body, which includes a rotating rod (801) that is rotatably connected to a rectangular frame (702). The rotating rod (801) is installed at the corner of the rectangular frame (702). A screw (803) is fixedly installed at the end of the rotating rod (801). A constraint rod (804) is installed at the end of the screw (803). A baffle (805) is installed at the end of the constraint rod (804). Each rotating rod (801) has a pre-drilled slot (802) on its peripheral wall at its end. Each constraint rod (804) has a pre-drilled constraint cavity (806).

4. The high-efficiency distribution transformer body structure according to claim 3, characterized in that: The constraint cavity (806) includes a triangular opening (8061), a vertical opening (8062), and a magnet (8063). The vertical opening (8062) is located above the triangular opening (8061) and communicates with it. The magnet (8063) is installed at the lower corner of the triangular opening (8061).

5. The high-efficiency distribution transformer body structure according to claim 4, characterized in that: The front and rear assembly components are a pair, and the same control bar (1100) is installed on the pair of assembly components. The control bar (1100) has round holes on both sides and is initially fitted around the corresponding constraint bar (804). An opening is reserved in the central area of ​​the control bar (1100).

6. The high-efficiency distribution transformer body structure according to claim 5, characterized in that: The assembly includes an auxiliary limiting part, which includes a second magnet (901). The second magnet (901) is installed on both sides of the corresponding control strip (1100) on the upper wall of the ventilation fan (1200). Side extension plates (909) are installed on both sides of the second magnet (901), and elastic telescopic rods (9010) are installed on the side extension plates (909). Each elastic telescopic rod (9010) is located on the side of the corresponding control strip (1100). The second magnet (901) is located above the opening of the control strip (1100). A sliding opening is reserved on the side of the circular hole on the control strip (1100) near the opening. A sliding cylinder (902) is slidably installed in the sliding opening. A sliding rod (903) is connected to the sliding cylinder (902). A ring-shaped protrusion is installed on the inner wall of the sliding cylinder (902). A sliding ring is installed on the part of the sliding rod (903) with the ring-shaped protrusion. An elastic element (905) is installed on the sliding ring. One side of the elastic element (905) is connected to the sliding ring, and the other side of the elastic element (905) is connected to the wall surface of the ring-shaped protrusion. The side of the sliding rod (903) close to the magnet (901) is adapted to the inner wall of the sliding cylinder (902). A contact platform (906) is installed on the side of the sliding rod (903) away from the magnet (901). Movable spheres (908) are installed on both sides of the contact platform (906). An opening (907) adapted to the spheres (908) is reserved on the sliding cylinder (902).

7. The high-efficiency distribution transformer body structure according to claim 6, characterized in that: The sliding cylinder (902) is provided with a sliding ring (9021) on its periphery, and the sliding cylinder (902) is slidably connected to the sliding port via the sliding ring (9021).

8. The high-efficiency distribution transformer body structure according to claim 7, characterized in that: The upper side of the magnet (901) near the sliding rod (903) is a slope, and the lower side is a vertical wall. The contact platform (906) has a trapezoidal cavity, and the slope of the cavity contacts the sphere (908).

9. The high-efficiency distribution transformer body structure according to claim 8, characterized in that: The size of the circular hole exceeds that of the constraint rod (804), and the size of the circular hole is the same as that of the rotating rod (801).

10. The high-efficiency distribution transformer body structure according to claim 9, characterized in that: The ventilation fan (1200) has four corners with pre-reserved connection ports (1201), which are compatible with the screw (803).

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