Anti-overvoltage transformer

Abstract

The anti-overvoltage transformer comprises a transformer body, a wiring terminal is installed on the transformer body, an installation cavity is formed in the wiring terminal, the installation cavity penetrates through the wiring terminal, and a first opening and a second opening are formed in the horizontal direction of the wiring terminal. A first limiting piece close to the first opening and a second limiting piece arranged at the second opening are arranged in the mounting cavity, a third limiting piece is arranged between the first limiting piece and the second limiting piece, and a third opening is formed in the top of the mounting cavity between the first limiting piece and the third limiting piece; a fourth opening is formed in the top of the portion, between the second limiting piece and the third limiting piece, of the installation cavity, a movable first conductor is installed in the installation cavity, and the first conductor extends to the first opening, the second opening and the fourth opening. According to the transformer, the plurality of wiring terminals are arranged, and different voltages are output through the plurality of wiring terminals, so that equipment connected with the transformer body can obtain adaptive voltages, and the equipment is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and more specifically, to an overvoltage protection transformer. Background Art

[0002] When the output voltage of a transformer is too different from the rated voltage of an electrical device, the electrical device has a high risk of damage. Therefore, it is necessary to connect the electrical device to the output terminal of a transformer adapted to its rated voltage. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a transformer that is convenient for wiring and can output an appropriate voltage.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses an overvoltage protection transformer, which includes a transformer body. A plurality of wiring terminals are installed on the transformer body. An installation cavity is arranged in the wiring terminal. The installation cavity penetrates through the wiring terminal and forms a first opening and a second opening in the horizontal direction of the wiring terminal. A first limiting member close to the first opening and a second limiting member located at the second opening are arranged in the installation cavity. A third limiting member is arranged between the first limiting member and the second limiting member. A third opening is formed at the top of the installation cavity between the first limiting member and the third limiting member. A fourth opening is formed at the top of the installation cavity between the second limiting member and the third limiting member. A movable first conductor is installed in the installation cavity, and the first conductor extends to the first opening, the second opening and the fourth opening.

[0006] Further, the first conductor includes a supporting portion. The supporting portion is provided with a first clamping portion extending towards the first opening and a second clamping portion extending towards the second opening. The end of the second clamping portion is provided with a third clamping portion that bends and extends towards the fourth opening.

[0007] Further, a second conductor is arranged at the bottom of the installation cavity. A first clamping space is formed between the second conductor and the first clamping portion, and a second clamping space is formed between the second conductor and the second clamping portion.

[0008] Further, a fastening hole corresponding to the position of the third opening is arranged at the bottom of the installation cavity. A fastener that passes through the first conductor and the second conductor and cooperates with the fastening hole is arranged in the third opening. A spring placed between the first conductor and the second conductor is sleeved on the fastener.

[0009] Further, the fastener is provided with a retaining ring. One side of the first conductor abuts against the spring, and the other side abuts against the retaining ring.

[0010] Further, a third conductor is provided on a surface of the third limiting member facing the second limiting member, and a third clamping space is formed between the third conductor and the third clamping portion.

[0011] Further, a guide plate is provided at the fourth opening. The guide plate is inclined towards the third conductor. When the first conductor moves upward, the third clamping portion moves along the guide plate to expand the third clamping space.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By providing a plurality of terminal blocks, different voltages are output through the plurality of terminal blocks, so that the devices connected to the transformer body can obtain voltages adapted to them, thereby preventing damage to other devices caused by too high voltage output of the transformer board.

[0014] 2. Providing openings in two directions for device connection can facilitate the overall connection of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic structural view of the terminal block;

[0017] Reference numerals: transformer body 100, terminal block 200, installation cavity 201, first limiting member 202, third limiting member 203, second limiting member 204, fastening hole 205, first opening 210, second opening 220, third opening 230, fourth opening 240, guide plate 241, second conductor 250, third conductor 260, first conductor 300, support portion 310, first clamping portion 320, first clamping space 321, second clamping portion 330, second clamping space 331, third clamping portion 340, third clamping space 341, fastener 400, retaining ring 410, spring 420. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Refer to Figures 1 to 2, An overvoltage protection transformer, comprising a transformer body 100. The transformer body 100 is equipped with a wiring terminal 200 for output. A plurality of wiring terminals 200 are provided to offer different voltage selections, enabling subsequent devices to select appropriate voltages for connection, thereby preventing damage to the devices connected to the transformer due to excessive output voltage.

[0020] The wiring terminal 200 includes an installation cavity 201 provided inside it. The installation cavity 201 penetrates the wiring terminal and forms a first opening 210 and a second opening 220 in the horizontal direction of the wiring terminal 200. Meanwhile, a first limiting member 202 close to the first opening 210 and a second limiting member 204 close to the second opening 220 are arranged in the installation cavity 201. A third limiting member 203 is arranged between the first limiting member 202 and the second limiting member 204. The top of the installation cavity 201 between the first limiting member 202 and the second limiting member 204 is provided with a third opening 230, and the top of the installation cavity 201 between the second limiting member 204 and the third limiting member 203 is provided with a fourth opening 240.

[0021] A first conductor 300 is installed in the installation cavity 201. The first conductor 300 includes a support portion 310 located at the center. The support portion 310 is provided with a first clamping portion 320 extending to the first opening 210 and a second clamping portion 330 extending to the second opening 220. Meanwhile, a third clamping portion 340 that bends and extends towards the fourth opening 240 is arranged at the end of the second clamping portion 330. A second conductor 250 is arranged at the bottom of the installation cavity 201. A first clamping space 321 is formed between the second conductor 250 and the first clamping portion 320, and a second clamping space 331 is formed between the second conductor 250 and the second clamping portion 330. The first clamping space 321 is used to connect the output cable of the transformer body 100, and the second clamping space 331 is used to connect subsequent devices. Meanwhile, a third conductor 260 is installed on the side of the second limiting member 204 facing the third limiting member 203. A third clamping space 341 is formed between the third conductor 260 and the third clamping portion 340. Subsequent devices can also insert the cable into the fourth opening 240 and then into the third clamping space 341 to connect to the transformer body 100, enabling the cables of subsequent devices to connect to the wiring terminal 200 from two directions, namely the second opening 220 and the fourth opening 240, which is convenient for wiring arrangement.

[0022] A fastener 400 is installed in the third opening 230. A fastening hole 205 corresponding to the position of the third opening 230 is provided at the bottom of the installation cavity 201. The fastener 400 passes through the first conductor 300 and the second conductor 250 and is threadedly connected to the fastening hole 205. A spring 420 is provided between the first conductor 300 and the second conductor 250. The spring 420 is sleeved on the fastener 400. At the same time, a retaining ring 410 is also provided on the fastener 400. One side of the first conductor 300 abuts against the retaining ring 410, and the other side abuts against the spring 420.

[0023] The spring 420 pushes the first conductor 300 to move upward, so that the first clamping space 321 and the second clamping space 331 are enlarged, so that the cable for connection can be inserted into the first clamping space 321 or the second clamping space 331. By tightening the fastener 400, the fastener moves downward. At this time, the retaining ring 410 pushes the first conductor 300 to move downward, so as to clamp the cable inserted into the first clamping space 321 and the second clamping space 331.

[0024] A guide plate 241 inclined towards the third conductor 260 is provided in the fourth opening 240. The guide plate 241 abuts against the end of the point clamping portion. When the first conductor 300 moves upward, the end of the third clamping portion 340 moves along the guide plate 241, so that the third clamping space 341 is enlarged, so that the cable can enter and exit the third clamping space 341. When the first conductor 300 descends, since the third clamping portion 340 is bent from the second clamping portion 330, the third clamping space 341 will be reduced under its own deformation, so as to clamp the cable inserted into the third clamping space 341.

[0025] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. An overvoltage protection transformer, characterized in that: The invention comprises a transformer body (100), wherein the transformer body (100) is provided with a plurality of connection terminals (200), wherein a mounting cavity (201) is provided in the connection terminal (200), wherein the mounting cavity (201) passes through the connection terminal (200) and forms a first opening (210) and a second opening (220) in a horizontal direction of the connection terminal (200), wherein a first limiting member (202) close to the first opening (210) and a second limiting member (204) disposed at the second opening (220) are provided in the mounting cavity (201), wherein the first limiting member (202) A third limiting member (203) is arranged between the first limiting member (202) and the third limiting member (203); a third opening (230) is provided at the top of the installation cavity (201) between the first limiting member (202) and the third limiting member (203); a fourth opening (240) is provided at the top of the installation cavity (201) between the second limiting member (204) and the third limiting member (203); a movable first conductor (300) is installed in the installation cavity (201); the first conductor (300) extends to the first opening (210), the second opening (220) and the fourth opening (240).

2. The overvoltage protection transformer according to claim 1, characterized in that: The first conductor (300) comprises a supporting portion (310), wherein the supporting portion (310) is provided with a first clamping portion (320) extending toward the first opening (210) and a second clamping portion (330) extending toward the second opening (220), and an end portion of the second clamping portion (330) is provided with a third clamping portion (340) bent and extended toward the fourth opening (240).

3. The overvoltage protection transformer according to claim 2, characterized in that: A second conductor (250) is disposed at the bottom of the installation cavity (201); a first clamping space (321) is formed between the second conductor (250) and the first clamping portion (320); and a second clamping space (331) is formed between the second conductor (250) and the second clamping portion (330).

4. The overvoltage protection transformer according to claim 3, characterized in that: The bottom of the installation cavity (201) is provided with a fastening hole (205) corresponding to the position of the third opening (230), and the third opening (230) is provided with a fastener (400) that passes through the first conductor (300) and the second conductor (250) and cooperates with the fastening hole (205), and the fastener (400) is sleeved with a spring (420) placed between the first conductor (300) and the second conductor (250).

5. The overvoltage protection transformer according to claim 4, characterized in that: The fastener (400) is provided with a retaining ring (410); one side of the first conductor (300) abuts against the spring (420), and the other side abuts against the retaining ring (410).

6. The overvoltage protection transformer according to claim 2, characterized in that: A third conductor (260) is provided on a side of the second limiting member (204) facing the third limiting member (203), and a third clamping space (341) is formed between the third conductor (260) and the third clamping portion (340).

7. The overvoltage protection transformer according to claim 6, characterized in that: A guide plate (241) is provided at the fourth opening (240), and the guide plate (241) is inclined toward the third conductor (260). When the first conductor (300) moves upward, the third clamping portion (340) moves along the guide plate (241) to expand the third clamping space (341).

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