Overtemperature protection device pre-buried in transformer coil
By designing an overtemperature protection device including a sliding structure and a linkage mechanical system in the transformer coil, the problem of traditional devices lacking manual power outage function is solved, and backup safety measures are realized when the automatic cutoff function fails to be effective to ensure the safe operation of the transformer.
Patent Information
- Application Number
- CN202422147950.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The overtemperature protection device in the traditional transformer coil has not added a manual power cut mechanism, which leads to the lack of backup means to prevent fire and other safety accidents when the automatic power cut off function fails.
An overtemperature protection device pre-embedded in the transformer coil is designed, which includes a continuous sliding structure and a linked mechanical system. Through the cooperation of sliders, sliding rods and springs, the conversion from manual operation to internal mechanical movement is realized, and the function of manual power-off is achieved.
It effectively solves the problem that traditional transformer coil overtemperature protection devices lack manual power outage function, ensuring that manual operation can still prevent fire and other safety accidents when the automatic power cut off function fails.
Smart Images
Figure CN222980292U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformer coils, and particularly relates to an over-temperature protection device embedded in a transformer coil. Background Technique
[0002] The over-temperature protection device embedded in the transformer coil mainly plays the role of monitoring and preventing the transformer from overheating. Specifically, this protection device senses the temperature change of the transformer coil. When the temperature exceeds the set safety threshold, it will automatically cut off the power supply or start corresponding protection measures to prevent the transformer from being damaged due to overheating or causing safety accidents such as fires.
[0003] In the prior art, the over-temperature protection device in the traditional transformer coil does not have a manually cut-off power mechanism. Therefore, when the automatic power cut-off function on the device fails, there is a lack of backup means to prevent safety accidents such as fires that may be caused. Content of the Utility Model
[0004] The purpose of the utility model is to provide an over-temperature protection device embedded in a transformer coil, aiming to solve the problem that the over-temperature protection device in the traditional transformer coil in the prior art does not have a manually cut-off power mechanism. Therefore, when the automatic power cut-off function on the device fails, there is a lack of backup means to prevent safety accidents such as fires that may be caused.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] An over-temperature protection device embedded in a transformer coil includes:
[0007] Two transformer connecting rods;
[0008] A first magnet connector, which is fixedly connected to the circumferential surface of the transformer connecting rod;
[0009] A second magnet connector, which is fixedly connected to the circumferential surface of the transformer connecting rod, and the second magnet connector is fixedly connected to the front end of the first magnet connector;
[0010] A second protective sleeve, which is fixedly connected to the circumferential surface of the first magnet connector;
[0011] A first protective sleeve, which is fixedly connected to the circumferential surface of the first magnet connector.
[0012] As a preferred solution of the utility model, two supports are fixedly connected to the outer surface of the first protective sleeve, and a first mating slider is fixedly connected to the lower ends of the two supports. A slider is slidably connected inside the first mating slider.
[0013] As a preferred embodiment of the present utility model, an impact rod is fixedly connected to the front end of the slider, and an impact surface is fixedly connected to the outer surface of the second protective sleeve.
[0014] As a preferred embodiment of the present utility model, a sliding rod is slidably connected inside the first mating slider, a spring is fixedly connected to the rear end of the slider, and a spring is provided on the circumferential surface of the sliding rod.
[0015] As a preferred embodiment of the present utility model, a second mating slider is fixedly connected to the rear end of the first mating slider, a spring is slidably connected inside the second mating slider, and a pull handle is fixedly connected to the rear end of the spring.
[0016] As a preferred embodiment of the present utility model, a temperature sensor is fixedly connected to the upper end of the second protective sleeve, and two transformer wire pair interfaces are respectively provided at the front ends of the two springs.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] 1. In this solution, a second mating slider is fixedly assembled at the rear part of the first mating slider, forming a continuous sliding structure. A spring is slidably installed inside the second mating slider, and the end of the spring is fixedly connected to a pull handle. This design forms a linkage mechanical system: when the pull handle is pulled, the spring is compressed by the force, and this force is transmitted to the first mating slider through the second mating slider, thereby affecting the relative position of the slider and the sliding rod, realizing the conversion from external manual operation to internal mechanical movement.
[0019] 2. In this solution, by using this device, the problem that the over-temperature protection device in the traditional transformer coil does not have a manual power-off mechanism is solved. Therefore, when the automatic power-off function of the device fails, there is a lack of backup means to prevent potential safety accidents such as fires. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0021] Figure 1 is the first side view three-dimensional diagram of the present utility model;
[0022] Figure 2 is the second side view three-dimensional diagram of the present utility model;
[0023] Figure 3 is the third side view three-dimensional diagram of the present utility model;
[0024] Figure 4 This is the front orthographic axonometric view of the present utility model;
[0025] In the figure: 1, transformer connecting rod; 2, first magnet connector; 3, second magnet connector; 301, second protective sleeve; 4, first protective sleeve; 5, supporter; 6, first mating slider; 7, slider; 8, impact rod; 9, impact surface; 10, sliding rod; 11, spring; 12, second mating slider; 13, pull handle; 14, temperature sensor; 15, transformer wire pair interface. Specific embodiments
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] Embodiment
[0028] Please refer to Figures 1 - 4 , the present utility model provides the following technical solutions:
[0029] An over-temperature protection device embedded in a transformer coil includes:
[0030] Two transformer connecting rods 1;
[0031] The first magnet connector 2, and the first magnet connector 2 is fixedly connected to the circumferential surface of the transformer connecting rod 1;
[0032] The second magnet connector 3, and the second magnet connector 3 is fixedly connected to the circumferential surface of the transformer connecting rod 1, and the second magnet connector 3 is fixedly connected to the front end of the first magnet connector 2;
[0033] The second protective sleeve 301, and the second protective sleeve 301 is fixedly connected to the circumferential surface of the first magnet connector 2;
[0034] The first protective sleeve 4, and the first protective sleeve 4 is fixedly connected to the circumferential surface of the first magnet connector 2.
[0035] In a specific embodiment of the present utility model, the over-temperature protection device embedded in the transformer coil penetrates deep into the coil through two transformer connecting rods 1, on which a first magnet connector 2 and a second magnet connector 3 are fixedly assembled. The second magnet connector 3 is adjacent to the front end of the first magnet connector 2 to form a continuous magnetic field interaction link, and this design utilizes the magnetic force effect to sense temperature changes. A second protective sleeve 301 and a first protective sleeve 4 are respectively fixed on the circumferential surface of the first magnet connector 2, providing necessary insulation and physical protection for the magnet connector, isolating the influence of the high-temperature environment, and at the same time maintaining the stability and durability of the magnetic force effect. This structural design can trigger the protection mechanism in a timely manner through magnetic coupling reaction when the temperature of the transformer coil rises abnormally, effectively preventing overheating damage, ensuring the safe operation of the transformer, and extending the service life of the equipment.
[0036] For details, please refer to Figures 1 - 4 , two supports 5 are fixedly connected to the outer surface of the first protective sleeve 4, and two first mating sliders 6 are fixedly connected to the lower ends of the two supports 5. A slider 7 is slidably connected in the first mating slider 6.
[0037] In this embodiment: Two supports 5 are symmetrically fixed on the outer layer surface of the first protective sleeve 4, and a first mating slider 6 is fixedly installed at each of their lower ends. These sliders are internally designed with a slider 7 that can freely slide along the slider track.
[0038] For details, please refer to Figures 1 - 4 , a striker 8 is fixedly connected to the front end of the slider 7, and an impact surface 9 is fixedly connected to the outer surface of the second protective sleeve 301.
[0039] In this embodiment: A striker 8 is fixedly installed at the front end of the slider 7, and an impact surface 9 is correspondingly fixed on the outer surface of the second protective sleeve 301. When the slider 7 moves to a predetermined position along the first mating slider 6 due to an external triggering condition, the striker 8 at its front end will contact and apply pressure to the impact surface 9 outside the second protective sleeve 301, realizing a mechanical interaction. This design directly disconnects the device connection through a direct physical impact.
[0040] For details, please refer to Figures 1 - 4 , a sliding rod 10 is slidably connected in the first mating slider 6, a spring 11 is fixedly connected to the rear end of the slider 7, and the spring 11 is provided on the circumferential surface of the sliding rod 10.
[0041] In this embodiment: Inside the first mating slider 6, there is not only a slider 7 slidably connected, but also a sliding rod 10 accommodated, which can freely slide within the slider. A spring 11 is fixedly assembled at the rear end of the slider 7, and this spring 11 is also disposed on the circumferential surface of the sliding rod 10. Such a layout forms a composite elastic drive system: When the slider 7 moves within the slider due to an external force, through the compression and release of the spring 11, not only is the necessary resilience provided for the sliding of the slider 7 to ensure smooth movement and accurate positioning, but also the force is transmitted to the sliding rod 10 by the direct contact between the spring 11 and the sliding rod 10, realizing secondary transmission and amplification of the force, enhancing the response sensitivity and stability of the entire device. This design optimizes the dynamic performance of the protection device, ensuring that it can quickly and accurately perform protection actions when the temperature is abnormal, effectively protecting the transformer from overheating damage.
[0042] For details, please refer to Figures 1 - 4 , the rear end of the first mating slider 6 is fixedly connected to a second mating slider 12, and a spring 11 is slidably connected inside the second mating slider 12. The rear end of the spring 11 is fixedly connected to a pull handle 13.
[0043] In this embodiment: The rear part of the first mating slider 6 is fixedly assembled with a second mating slider 12, forming a continuous sliding structure. A spring 11 is slidably installed inside the second mating slider 12, and the end of the spring 11 is fixedly connected to a pull handle 13. Such a design forms a linkage mechanical system: When the pull handle 13 is pulled, the spring 11 is compressed by the force, and this force is transmitted to the first mating slider 6 through the second mating slider 12, thereby affecting the relative positions of the slider 7 and the sliding rod 10, realizing the conversion from external manual operation to internal mechanical movement.
[0044] For details, please refer to Figures 1 - 4 , the upper end of the second protective sleeve 301 is fixedly connected to a temperature sensor 14, and two transformer wire pair interfaces 15 are respectively provided at the front ends of the two springs 11.
[0045] In this embodiment: A temperature sensor 14 is fixedly installed on the upper part of the second protective sleeve 301 for real-time monitoring of the temperature condition in the coil area. And two transformer wire pair interfaces 15 are respectively designed at the front ends of the two springs 11, and these interfaces are directly connected to the circuit of the transformer. Such a design enables the temperature data obtained by the sensor to be quickly transmitted to the control system. Once an over-temperature situation is detected, the protection mechanism response is immediately triggered through the linkage of the spring 11 and the sliding mechanism, and at the same time, the transformer wire pair interfaces 15 ensure the unobstructed power transmission path, facilitating timely power cut-off or other protection measures.
[0046] Working principle and usage process of the present utility model: When this over-temperature protection device is applied, first, two transformer connecting rods 1 are embedded inside the transformer coil, and a first magnet connector 2 and a second magnet connector 3 are fixed on its surface to construct a magnetic induction system. The second protective sleeve 301 and the first protective sleeve 4 provide structural protection. When the temperature rises abnormally, inside the first mating slider 6 supported by the supporter 5 outside the first protective sleeve 4, the slider 7 moves driven by the temperature sensing signal, and the impact rod 8 at the front end impacts the impact surface 9 of the second protective sleeve 301 to trigger the protection action. The sliding rod 10 is inside the first mating slider 6 and cooperates with the spring 11 at the rear end of the slider 7. Through the force transmission and buffering of the spring 11, the stability and response speed of the action are enhanced. The second mating slider 12 is connected to the first mating slider 6, contains a spring 11 and realizes manual testing or reset through the pull handle 13. The temperature sensor 14 is installed at the upper end of the second protective sleeve 301 to monitor the temperature in real time, and the transformer wire pair interface 15 at the front end of the spring 11 ensures emergency power-off or signal transmission. The whole set of devices works together to achieve instant monitoring and effective protection of the over-temperature of the transformer coil, prevent overheating damage, and solve the problem that the over-temperature protection device in the traditional transformer coil does not add a manual power-off mechanism. Therefore, when the automatic power-off function of the device fails, there is a lack of backup means to prevent safety accidents such as fires that may be caused.
[0047] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An over-temperature protection device embedded in a transformer coil, characterized in that include: Two transformer connecting rods (1); A first magnet connector (2), the first magnet connector (2) being fixedly connected to the circumferential surface of the transformer connecting rod (1); A second magnet connector (3), the second magnet connector (3) being fixedly connected to the circumferential surface of the transformer connecting rod (1), and the second magnet connector (3) being fixedly connected to the front end of the first magnet connector (2); A second protective sleeve (301), the second protective sleeve (301) being fixedly connected to the circumferential surface of the first magnet connector (2); A first protective sleeve (4), wherein the first protective sleeve (4) is fixedly connected to the circumferential surface of the first magnet connector (2).
2. The over-temperature protection device embedded in the transformer coil according to claim 1 is characterized in that: The outer surface of the first protective cover (4) is fixedly connected to two supports (5), the lower ends of the two supports (5) are fixedly connected to a first matching slider (6), and a slider (7) is slidably connected inside the first matching slider (6).
3. The over-temperature protection device embedded in the transformer coil according to claim 2 is characterized in that: The front end of the sliding block (7) is fixedly connected to an impact rod (8), and the outer surface of the second protective sleeve (301) is fixedly connected to an impact surface (9).
4. The over-temperature protection device embedded in the transformer coil according to claim 3 is characterized in that: A sliding rod (10) is slidably connected inside the first matching slider (6), a spring (11) is fixedly connected to the rear end of the slider (7), and a spring (11) is provided on the circumferential surface of the sliding rod (10).
5. The over-temperature protection device embedded in the transformer coil according to claim 4 is characterized in that: The rear end of the first matching slider (6) is fixedly connected to the second matching slider (12), a spring (11) is slidably connected inside the second matching slider (12), and the rear end of the spring (11) is fixedly connected to a handle (13).
6. The over-temperature protection device embedded in the transformer coil according to claim 5 is characterized in that: The upper end of the second protective cover (301) is fixedly connected to a temperature sensor (14), and the front ends of the two springs (11) are respectively provided with two transformer line pair interfaces (15).