Sensor quick release structure of a transformer

Abstract

This utility model relates to the field of transformers, specifically disclosing a quick-release sensor structure for transformers. It includes a housing, a guide rail, a slide bar, and several infrared sensors mounted on the slide bar. The slide bar and the infrared sensors form a single unit, and a wiring groove is provided on the inner side of the slide bar. When the infrared sensors need to be inspected or calibrated, spare slide bars and several fixed infrared sensors can be prepared in advance. Since the connectors of these spare infrared sensors are all concentrated on the same side, users can easily and quickly disconnect the sensors from the control board, thereby efficiently completing the overall replacement and rewiring of the slide bar and sensors. The removed sensors can be subsequently tested smoothly and comprehensively, and the replacement and installation process is time-saving, significantly reducing equipment downtime.

Description

Technical Field

[0001] This utility model belongs to the field of transformers, and specifically relates to a quick-release structure for a transformer sensor. Background Technology

[0002] A dry-type transformer is a type of transformer whose core and windings are not immersed in insulating oil, but rather rely on air or forced air cooling for heat dissipation. Its windings are typically made of epoxy resin-cast or impregnated insulating materials (such as insulating paper or fiberglass), offering advantages such as good fire resistance, no pollution, and easy maintenance. The transformer is enclosed in a casing to isolate it from external dust, moisture, and mechanical impacts, while the casing also contains ventilation holes and fans to enhance heat dissipation.

[0003] To monitor transformer temperature, several temperature sensors, such as infrared sensors, are installed inside the casing as needed to monitor the windings, core, and ventilation openings. Infrared sensors require calibration or replacement; a quick-release mechanism can significantly reduce downtime. Existing quick-release mechanisms are mostly plug-in terminals and quick connectors, but they still require individual disassembly, making batch processing impossible. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release structure for a transformer that allows for the simultaneous removal of a set of infrared sensors.

[0005] To achieve the above objectives, this utility model provides a quick-release sensor structure for a transformer, including a housing covering the transformer body. A guide rail is provided on the inner side wall of the housing, and a slider is provided on the guide rail. Under the restriction of the guide rail, the slider can only slide in the length direction of the guide rail. Several infrared sensors are installed on the slider, and the infrared sensors are respectively facing the windings, core, and ventilation openings of the transformer body. Several wiring grooves are provided on the surface of the slider, and the wires of the infrared sensors enter the wiring grooves and converge to the same side of the slider.

[0006] As an improvement to the above solution, the guide rail has a trapezoidal cross-section, and the outer side of the guide rail is wider than the inner side, thereby restricting the degree of freedom of the slider. A positioning block is provided at the end of the guide rail to restrict the final insertion position of the slider. The slider is provided with a groove with a trapezoidal cross-section, and the outer side of the groove is narrower than the inner side.

[0007] As an improvement to the above solution, the slide bar is provided with several slots on its upper and lower sides. The slide bar is detachably connected to a mounting plate through the slots. The mounting plate has a U-shaped cross-section and barbs at the positions where it is embedded in the slots. The infrared sensor is fixed to the mounting plate.

[0008] As an improvement to the above solution, the guide rail is bolted to the housing, and the starting entrance of the guide rail is higher than the end of the guide rail, so that the guide rail is tilted and the slider can abut against the positioning block under the action of gravity.

[0009] As an improvement to the above solution, the tilt angle of the guide rail is 5-10°.

[0010] As an improvement to the above solution, the guide rail, the slide bar, and the mounting plate are all made of plastic, and the guide rail and the slide bar are interference-fitted.

[0011] This invention offers the following advantages: When infrared sensors need maintenance or calibration, spare sliders and several fixed infrared sensors can be prepared in advance. Since the connectors of these spare infrared sensors are all located on the same side, users can easily and quickly disconnect the sensors from the control board, thus efficiently replacing the sliders and sensors and rewiring them. The removed sensors can then be thoroughly and conveniently tested, and the replacement and installation process is quick, significantly reducing equipment downtime. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an embodiment where a slide bar is mounted on the housing;

[0013] Figure 2 This is a cross-sectional view of a slide bar in one embodiment.

[0014] Explanation of reference numerals in the attached drawings: 11. Housing; 12. Guide rail; 13. Positioning block; 21. Slider; 22. Infrared sensor; 23. Mounting plate; 31. Wiring channel; 32. Wire. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will now be described based on its overall structure.

[0018] Reference Figure 1 and Figure 2 This utility model discloses a quick-release sensor structure for a transformer, including a housing 11 covering the transformer body. A guide rail 12 is provided on the inner side wall of the housing 11, and a slider 21 is provided on the guide rail 12. Under the restriction of the guide rail 12, the slider 21 can only slide in the length direction of the guide rail 12. Several infrared sensors 22 are installed on the slider 21, and the infrared sensors 22 are respectively facing the windings, iron core, and ventilation openings of the transformer body. Several wiring grooves 31 are provided on the surface of the slider 21. After the wires 32 of the infrared sensors 22 enter the wiring grooves 31, they converge to the same side of the slider 21. This side is located on the cabinet door side of the housing, so that the cabinet door can be opened to pull out the slider 21.

[0019] As an improvement to the above solution, the guide rail 12 has a trapezoidal cross-section, and the guide rail 12 is wider on the outside and narrower on the inside, thereby restricting the degree of freedom of the slider 21. A positioning block 13 is provided at the end of the guide rail 12 to restrict the final insertion position of the slider 21. The slider 21 is provided with a groove with a trapezoidal cross-section, and the groove is narrower on the outside and wider on the inside.

[0020] As an improvement to the above solution, the slide bar 21 has several slots on its upper and lower sides. The slide bar 21 is detachably secured to a mounting plate 23 via these slots. The mounting plate 23 has a U-shaped cross-section and barbs at the positions where it engages with the slots. The infrared sensor 22 is fixed to the mounting plate 23. This design facilitates quick disassembly of the infrared sensor 22 relative to the slide bar 21. Figure 1 As shown, the infrared sensor 22 located away from the left side of the guide rail 12 requires a longer wire 32. When assembling the infrared sensor 22, the infrared sensor 22 located away from the left side of the guide rail 12 is installed first, and the wire 32 is inserted into the wiring groove 31. Then, the mounting plate 23 located slightly closer is installed, and the mounting plate 23 presses down on the first wire 32 to prevent the wire 32 from coming off the wiring groove 31. This process is repeated to assemble the slider 21 and several infrared sensors 22 into a whole.

[0021] As an improvement to the above solution, the guide rail 12 is bolted to the housing 11, and the starting entrance of the guide rail 12 is higher than the end of the guide rail 12, so that the guide rail 12 is tilted, and the slider 21 can abut against the positioning block 13 under the action of gravity.

[0022] As an improvement to the above solution, the tilt angle of the guide rail 12 is 5-10°. With this solution, compared to the horizontally positioned guide rail 12, the slider 21 is less likely to detach, thus improving safety.

[0023] As an improvement to the above solution, the guide rail 12, the slider 21, and the mounting plate 23 are all made of plastic, and the guide rail 12 and the slider 21 are interference-fitted. This solution reduces the gap between the guide rail 12 and the slider 21, preventing loosening and wobbling. In other solutions, several rubber strips can also be provided on the inner side of the slider 21. When the rubber strips are in the gap, they are compressed, thereby increasing the friction between the slider 21 and the guide rail 12.

[0024] When the infrared sensor 22 needs to be inspected or calibrated, spare sliders 21 and several fixed infrared sensors 22 can be prepared in advance. Since the connectors of these spare infrared sensors 22 are all concentrated on the same side, it is convenient for users to quickly disconnect the sensor from the control board, thereby efficiently completing the overall replacement and rewiring of the slider 21 and sensor. The removed sensor can be subsequently tested calmly and comprehensively, and the replacement and installation process is short, which can significantly reduce equipment downtime.

[0025] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A quick-release sensor structure for a transformer, comprising a housing covering the transformer body, characterized in that: The inner wall of the housing is provided with a guide rail, and a slider is provided on the guide rail. Under the restriction of the guide rail, the slider can only slide in the length direction of the guide rail. Several infrared sensors are installed on the slider, and the infrared sensors are respectively facing the winding, iron core and ventilation opening of the transformer body. Several wiring grooves are provided on the surface of the slider, and the wires of the infrared sensors enter the wiring grooves and converge to the same side of the slider.

2. The quick-release sensor structure for the transformer according to claim 1, characterized in that: The guide rail has a trapezoidal cross-section, and the outer side of the guide rail is wider than the inner side, thus restricting the degree of freedom of the slider. A positioning block is provided at the end of the guide rail to restrict the final insertion position of the slider. The slider is provided with a groove with a trapezoidal cross-section, and the outer side of the groove is narrower than the inner side.

3. The quick-release sensor structure for the transformer according to claim 2, characterized in that: The slide bar has several slots on its upper and lower sides. The slide bar is detachably connected to a mounting plate through the slots. The mounting plate has a U-shaped cross-section and barbs at the positions where it is embedded in the slots. The infrared sensor is fixed to the mounting plate.

4. The quick-release sensor structure for the transformer according to claim 3, characterized in that: The guide rail is bolted to the housing. The starting inlet of the guide rail is higher than the end of the guide rail, causing the guide rail to tilt. The slider can abut against the positioning block under the action of gravity.

5. The quick-release sensor structure for the transformer according to claim 4, characterized in that: The tilt angle of the guide rail is 5-10°.

6. The quick-release sensor structure for the transformer according to claim 5, characterized in that: The guide rail, the slide bar, and the mounting plate are all made of plastic, and the guide rail and the slide bar are interference-fitted.

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