A transformer tap changer device

Abstract

This utility model relates to the field of transformer technology, specifically to a transformer tap changer device, including a tap switch, an adjusting frame installed on the inner wall of the tap switch, a support installed on the surface of the adjusting frame, a fixed base fixedly connected to the surface of the support, a rotating frame rotatably connected to the surface of the fixed base, an adjusting handle rotatably connected inside the rotating frame, a fixing groove formed on the surface of the fixed base, several lead terminals fixedly installed on the bottom surface of the tap switch, insulating protective pads provided on the lead terminals, three connecting frames fixedly connected to the surface of the adjusting frame, two snap-fit ​​plates installed on one side of the connecting frames, and spring assemblies installed on the surface of the connecting frames. This invention solves the problems of inconvenient tap position adjustment operation, difficulty in accurately knowing the current tap position during adjustment, and poor heat dissipation performance of existing transformer tap changer devices.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer tap changer device. Background Technology

[0002] In power systems, transformers are key equipment for realizing power transmission and voltage transformation. Transformer tap changers connect the transformer's taps to external circuits, adjusting the transformer's output voltage by changing the tap position to meet different power demands. However, existing transformer tap changers suffer from inconvenient tap adjustment operations, difficulty in accurately determining the current tap position during adjustment, and poor heat dissipation, leading to overheating of components and affecting the device's lifespan and stability.

[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: existing transformer tap changer devices are inconvenient to operate for adjusting the tap position, and it is difficult to accurately know the current tap position during the adjustment process; the heat dissipation performance of the tap changer device is poor, and the heat generated during operation cannot be dissipated in time, which can easily lead to overheating of components; therefore, a transformer tap changer device is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing transformer tap changer devices, such as inconvenient tap adjustment operation, difficulty in accurately knowing the current tap during adjustment, poor heat dissipation performance of the tap changer device, and inability to dissipate the heat generated during operation, which can easily lead to overheating of components. Therefore, a transformer tap changer device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a transformer tap changer device, comprising a tap changer switch, an adjusting frame installed on the inner wall of the tap changer switch, a support installed on the surface of the adjusting frame, a fixed seat fixedly connected to the surface of the support, a rotating frame rotatably connected to the surface of the fixed seat, an adjusting handle rotatably connected inside the rotating frame, a fixing groove opened on the surface of the fixed seat, a plurality of lead terminals fixedly installed on the bottom surface of the tap changer, insulating protective pads provided on the lead terminals, three connecting frames fixedly connected to the surface of the adjusting frame, two snap-fit ​​plates installed on one side of the connecting frame, and a spring assembly installed on the surface of the connecting frame.

[0006] The effects achieved by the above components are as follows: by setting the adjustment frame and related components on the inner wall of the tap changer, the rotating frame and adjustment handle can be used to conveniently adjust the tap position; the lead terminals are equipped with insulating protective pads to enhance insulation performance and improve safety; the connecting frame, together with the snap-fit ​​plate and spring assembly, can facilitate the snap-fit ​​plate to cooperate with lead terminals of different positions, thereby improving the ease of operation and safety of the device.

[0007] Preferably, a plurality of heat dissipation fins are fixedly connected to the surface of the rotating frame, and the plurality of heat dissipation fins are distributed in a circumferential array on the rotating frame.

[0008] The effects achieved by the above components are as follows: the heat dissipation fins distributed in a circular array on the surface of the rotating frame can effectively increase the heat dissipation area, accelerate heat dissipation, and reduce the heat generated by the rotating frame and surrounding components during operation in a timely manner, preventing the performance of the transformer tapping lead device from being affected by excessive temperature, and improving the operational stability and service life of the device.

[0009] Preferably, a magnetic absorbing sheet is fixedly connected to the surface of the support, a shell is fitted onto the surface of the rotating frame, and an adsorption sheet is fixedly connected to the inner wall of the shell, with the magnetic absorbing sheet and the adsorption sheet adsorbingly connected.

[0010] The effect achieved by the above components is that by attaching the housing to the support, the operating frame is protected, preventing the rotating frame from being exposed to the outside environment and corroding and rusting over time, which would affect the rotation frame's gear operation and improve the practicality of the device.

[0011] Preferably, a rubber sleeve is fixedly connected to the surface of the housing.

[0012] The effects achieved by the above components are as follows: by setting the rubber sleeve, it is easy to open the housing from the rotating frame, which facilitates gear adjustment. At the same time, the rubber sleeve has a certain degree of insulation, which improves the practicality of the device.

[0013] Preferably, a sealing gasket is fixedly connected to the surface of the support, and one side of the sealing gasket abuts against the housing.

[0014] The effect achieved by the above components is that by setting a sealing gasket, the shell can be sealed and protected against the rotating frame, preventing water vapor from corroding the rotating frame and improving the practicality of the device.

[0015] Preferably, a guide rod is fixedly connected to the inner cavity of the housing, and a guide groove is formed on the surface of the rotating frame, wherein the size of the guide rod is adapted to the size of the guide groove.

[0016] The aforementioned components achieve the following effect: by cooperating with the guide rod and the guide groove, the housing is fixed, preventing it from falling off due to external factors and affecting the protection of the rotating frame, thus improving the practicality of the device.

[0017] Preferably, the surface of the fixing base is provided with numerical markings, and the numerical markings correspond to the positions of the operating handle fixing slots.

[0018] The effect achieved by the above components is as follows: the surface of the fixed base is marked with numbers corresponding to the position of the operating handle fixing slot. When adjusting the transformer tap position, the operator can quickly and accurately determine the current position and target position of the operating handle by intuitively reading the numbers, which greatly improves the convenience and accuracy of operation and reduces the risk of equipment failure due to operational errors.

[0019] In this invention, by setting an adjustment frame and related components on the inner wall of the tap changer, the rotating frame and adjustment handle can be used to conveniently adjust the tap position. The lead terminals are equipped with insulating protective pads to enhance insulation performance and improve safety. The connecting frame, combined with the snap-fit ​​plate and spring assembly, can facilitate the snap-fit ​​plate to cooperate with lead terminals of different positions, thereby improving the ease of operation and safety of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the support structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the adjustment frame in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fixing base in this utility model;

[0024] Figure 5 This is a schematic diagram of the shell structure in this utility model;

[0025] Figure 6 This is a partial structural diagram of the adjustment frame in this utility model.

[0026] Legend: 1. Tap switch; 2. Adjusting bracket; 3. Support; 4. Fixed base; 5. Rotating bracket; 6. Lead wire terminal; 7. Connecting bracket; 8. Snap-fit ​​plate; 9. Spring assembly; 10. Heat dissipation fins; 11. Magnetic suction plate; 12. Adsorption plate; 13. Housing; 14. Guide rod; 15. Rubber sleeve; 16. Sealing gasket; 17. Number label. Detailed Implementation

[0027] Reference Figure 1-6As shown, this utility model provides a technical solution: a transformer tap changer device, including a tap changer 1, an adjusting frame 2 installed on the inner wall of the tap changer 1, a support 3 installed on the surface of the adjusting frame 2, a fixed seat 4 fixedly connected to the surface of the support 3, a rotating frame 5 rotatably connected to the surface of the fixed seat 4, an adjusting handle rotatably connected inside the rotating frame 5, a fixed slot opened on the surface of the fixed seat 4, a plurality of lead terminals 6 fixedly installed on the bottom surface of the tap changer 1, an insulating protective pad provided on the lead terminals 6, three connecting frames 7 fixedly connected to the surface of the adjusting frame 2, two snap-fit ​​plates 8 installed on one side of the connecting frame 7, and a spring assembly 9 installed on the surface of the connecting frame. By setting an adjustment frame 2 and related components on the inner wall of the tap changer 1, the rotating frame 5 and the adjustment handle can be conveniently adjusted to the tap position. The lead terminal 6 is equipped with an insulating protective pad to enhance insulation performance and improve safety. The connecting frame 7, together with the snap-fit ​​plate 8 and the spring assembly 9, can facilitate the snap-fit ​​plate 8 to cooperate with the lead terminal 6 at different positions, improving the ease of operation and safety of the device. Several heat dissipation fins 10 are fixedly connected to the surface of the rotating frame 5, and the heat dissipation fins 10 are distributed in a circumferential array on the rotating frame 5. The heat dissipation fins 10 distributed in a circumferential array on the surface of the rotating frame 5 can effectively increase the heat dissipation area, accelerate heat dissipation, and reduce the heat generated by the rotating frame 5 and surrounding components during operation, preventing the transformer tap changer device from being affected by excessive temperature, and improving the operational stability and service life of the device. A magnetic suction plate 11 is fixedly connected to the surface of the support 3, and a shell 13 is fitted on the surface of the rotating frame 5. An adsorption plate 12 is fixedly connected to the inner wall of the shell 13, and the magnetic suction plate 11 and the adsorption plate 12 are adsorbed and connected. By attaching the housing 13 to the support 3, the operating frame is protected, preventing the rotating frame 5 from being exposed to the outside environment and corroding over time, which would affect the gear adjustment operation of the rotating frame 5. This improves the practicality of the device. A rubber sleeve 15 is fixedly connected to the surface of the housing 13. The rubber sleeve 15 facilitates the opening of the housing 13 from the rotating frame 5 for gear adjustment, and also provides insulation, further enhancing the practicality of the device. A sealing gasket 16 is fixedly connected to the surface of the support 3, with one side of the sealing gasket 16 abutting against the housing 13. The sealing gasket 16 provides a sealed protection for the rotating frame 5, preventing moisture from corroding the rotating frame 5 and improving the practicality of the device. A guide rod is fixedly connected to the inner cavity of the housing 13, and a guide groove is formed on the surface of the rotating frame 5. The size of the guide rod matches the size of the guide groove. The guide rod and guide groove work together to fix the housing 13, preventing the housing 13 from falling off due to external factors and affecting the protection of the rotating frame 5, thus improving the practicality of the device. The surface of the fixing seat 4 is provided with a number 17, which corresponds to the position of the operating handle fixing slot.The surface of the fixed base 4 is marked with a number 17 corresponding to the position of the operating handle fixing slot. This allows the operator to quickly and accurately determine the current position and target position of the operating handle by visually reading the number 17 when adjusting the transformer tap position. This greatly improves the convenience and accuracy of operation and reduces the risk of equipment failure due to operational errors.

[0028] Working principle: Based on the correspondence between the numerical markings 17 on the surface of the fixed base 4 and the fixed slot of the operating handle, the operator rotates the adjustment handle. The adjustment handle drives the rotating frame 5 to rotate on the fixed base 4, thereby adjusting the gear. At the same time, the snap plate 8 on the connecting frame 7, under the elastic force of the spring assembly 9, flexibly connects with the lead terminals 6 of different gears to realize the switching of the tap gear. During operation, the heat dissipation fins 10 distributed in a circular array on the rotating frame 5 quickly dissipate the generated heat to maintain the normal operating temperature of the device. The insulating protective pad on the lead terminal 6 isolates the electrical components and ensures insulation safety. In addition, the magnetic suction piece 11 on the support 3 and the adsorption piece 12 on the inner wall of the housing 13 attract each other, so that the housing 13 is firmly fitted on the rotating frame 5, forming a protective layer. The sealing gasket 16 further enhances the sealing effect and prevents water vapor corrosion. The rubber sleeve 15 on the surface of the housing 13 not only facilitates the operator to open and close the housing 13 for gear adjustment, but its insulation characteristics also improve the safety performance of the device.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A transformer tap changer device, comprising a tap changer (1), characterized in that: The inner wall of the tap changer (1) is equipped with an adjustment frame (2), the surface of the adjustment frame (2) is equipped with a support (3), the surface of the support (3) is fixedly connected with a fixed seat (4), the surface of the fixed seat (4) is rotatably connected with a rotating frame (5), the rotating frame (5) is rotatably connected with an adjustment handle, the surface of the fixed seat (4) is provided with a fixed slot, the bottom surface of the tap changer (1) is fixedly equipped with several lead terminals (6), the lead terminals (6) are provided with insulating protective pads, the surface of the adjustment frame (2) is fixedly connected with three connecting frames (7), two snap-fit ​​plates (8) are installed on one side of the connecting frame (7), and the surface of the connecting frame (7) is equipped with a spring assembly (9).

2. The transformer tap changer device according to claim 1, characterized in that: The surface of the rotating frame (5) is fixedly connected with a number of heat dissipation fins (10), and the number of heat dissipation fins (10) are arranged in a circular array on the rotating frame (5).

3. The transformer tap changer device according to claim 1, characterized in that: A magnetic suction plate (11) is fixedly connected to the surface of the support (3), and a shell (13) is fitted onto the surface of the rotating frame (5). An adsorption plate (12) is fixedly connected to the inner wall of the shell (13), and the magnetic suction plate (11) and the adsorption plate (12) are adsorbed and connected.

4. A transformer tap changer device according to claim 3, characterized in that: A rubber sleeve (15) is fixedly connected to the surface of the housing (13).

5. A transformer tap changer device according to claim 1, characterized in that: A sealing gasket (16) is fixedly connected to the surface of the support (3), and one side of the sealing gasket (16) abuts against the housing (13).

6. A transformer tap changer device according to claim 3, characterized in that: The inner cavity of the housing (13) is fixedly connected to a guide rod, and the surface of the rotating frame (5) is provided with a guide groove. The size of the guide rod is adapted to the size of the guide groove.

7. A transformer tap changer device according to claim 1, characterized in that: The surface of the fixed base (4) is provided with a number (17), which corresponds to the position of the operating handle fixing slot.

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