Transformer with high safety

Abstract

The utility model discloses a transformer with high safety, which comprises a transformer body, a connecting wire is connected with a wiring end of the transformer body through a bolt, the head of the bolt is provided with a detachable insulating protective cover, and the head of the bolt is hidden in the insulating protective cover. The insulating protective cover is arranged at the head of the bolt, so that the bolt can be prevented from being directly exposed when a connecting wire is connected with a wiring end through the bolt, safety accidents caused by direct contact between foreign objects and the head of the bolt can also be avoided, and the safety performance of the transformer is improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer with high safety. Background Technology

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, a dry-type transformer is a transformer whose core and windings are not immersed in insulating oil.

[0003] In existing dry-type transformers, the connecting coils on multiple sets of connecting conductors are assembled with multiple sets of connecting terminals on the core cylinder by tightening bolts. However, this method has the following drawbacks: the bolt heads are directly exposed, which can easily lead to accidental contact during use and poses a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a transformer with high safety. By setting an insulating protective cover on the bolt head, the bolt can be directly exposed when the connecting wire and the terminal are connected by bolts. It can also prevent foreign objects from directly contacting the bolt head and causing safety accidents, thereby improving the safety performance of the transformer.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A highly safe transformer includes a transformer body, with connecting wires connected to the terminals of the transformer body via bolts. The head of the bolt is provided with a removable insulating protective cover, and the head of the bolt is hidden inside the insulating protective cover.

[0007] Furthermore, the insulating protective cover includes a semi-cylindrical protective body, and the plane of the protective body is provided with a head groove for accommodating the bolt head and a rod groove for the bolt shank to pass through, arranged sequentially from top to bottom.

[0008] The two ends of the protective body are respectively provided with a first baffle and a second baffle that protrude from the plane of the protective body.

[0009] Furthermore, both the head groove and the rod groove are arc-shaped structures.

[0010] Furthermore, one end of both the head groove and the rod groove extends through the arc-shaped surface of the protective body.

[0011] Furthermore, the second baffle is a circular plate, and a cross groove is provided on the second baffle.

[0012] Furthermore, the insulating protective cover is made of plastic or rubber.

[0013] Furthermore, the ends of the first baffle and the second baffle that are away from the head groove are connected by reinforcing ribs.

[0014] Furthermore, the protective body, the first baffle, the second baffle, and the reinforcing rib are an integrated structure.

[0015] The beneficial effects of this utility model are:

[0016] This invention improves the safety performance of transformers by installing an insulating protective cover on the bolt head, which prevents the bolt from being directly exposed when connecting wires and terminals are connected by bolts, and also prevents foreign objects from directly contacting the bolt head and causing safety accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a transformer with high safety in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 Sectional view along line AA;

[0019] Figure 3 for Figure 2 Enlarged view of point B in the middle section;

[0020] Figure 4 This is a 3D view of the insulating protective cover in use.

[0021] Figure 5 This is a front view of the insulating protective cover in use.

[0022] Figure 6 This is a 3D view of the insulating protective cover;

[0023] In the diagram, 1. Transformer body; 2. Connecting wire; 3. Bolt; 4. Terminal; 5. Insulating protective cover; 6. Protective body; 7. Head slot; 8. Rod slot; 9. First baffle; 10. Second baffle; 11. Cross slot; 12. Reinforcing rib. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] See Figures 1-6 This utility model provides a technical solution: Example

[0026] like Figures 1-6 As shown, a transformer with high safety includes a transformer body 1, and a connecting wire 2 is connected to the terminal 4 of the transformer body 1 by a bolt 3. The head of the bolt 3 is provided with a detachable insulating protective cover 5, and the head of the bolt 3 is hidden inside the insulating protective cover 5.

[0027] The insulating protective cover 5 includes a semi-cylindrical protective body 6. The protective body 6 has a head groove 7 for accommodating the head of the bolt 3 and a rod groove 8 for the shank of the bolt 3 to pass through, arranged sequentially from top to bottom on its plane. Both the head groove 7 and the rod groove 8 are arc-shaped structures. One end of the head groove 7 and the rod groove 8 extends through the arc surface of the protective body 6 to form an opening for the bolt 3 (head and shank) to enter the head groove 7 and the rod groove 8 from the side.

[0028] The two ends of the protective body 6 are respectively provided with a first baffle 9 and a second baffle 10 protruding from the plane of the protective body 6.

[0029] The second baffle 10 is a circular plate, and a cross groove 11 is provided on the second baffle 10.

[0030] The insulating protective cover 5 is made of plastic (such as PVC, PE, PP, etc.) or rubber. The ends of the first baffle 9 and the second baffle 10 away from the opening are connected by a reinforcing rib 12, and the protective body 6, the first baffle 9, the second baffle 10 and the reinforcing rib 12 are an integrated structure.

[0031] When connecting wire 2 to terminal 4, the connection is made by bolt 3. Before this, the insulating protective cover 5 is inserted into the head of bolt 3 so that the head of bolt 3 is hidden inside the protective body 6. The rod of bolt 3 passes through the rod groove 8, thus ensuring its normal connection.

[0032] When connecting wire 2 to terminal 4, the head of bolt 3 is rotated using a tool to screw the bolt 3 into terminal 4, forming a stable connection. When the bolt 3 is in place, the head of bolt 3 firmly presses the protective body 6 onto terminal 4. Due to the presence of the first baffle 9 and the second baffle 10, the head of bolt 3 is prevented from being directly exposed. If any object (person, animal, or other object) comes into contact with it, it will only contact the insulating protective cover 5, thus ensuring the safety of the connection point.

[0033] When bolt 3 needs to be removed, the insulating protective cover 5 can be detached from bolt 3 by rotating the cross groove 11 to make bolt 3 easy to unscrew quickly.

[0034] This invention improves the safety performance of transformers by installing an insulating protective cover on the bolt head, which prevents the bolt from being directly exposed when connecting wires and terminals are connected by bolts, and also prevents foreign objects from directly contacting the bolt head and causing safety accidents.

[0035] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A transformer with high safety, comprising a transformer body, wherein connecting wires are connected to the terminals of the transformer body via bolts, characterized in that: The head of the bolt is provided with a removable insulating protective cover, and the head of the bolt is hidden inside the insulating protective cover.

2. The transformer with high safety according to claim 1, characterized in that: The insulating protective cover includes a semi-cylindrical protective body, and the plane of the protective body is provided with a head groove for accommodating the bolt head and a rod groove for the bolt shank to pass through, arranged sequentially from top to bottom. The two ends of the protective body are respectively provided with a first baffle and a second baffle that protrude from the plane of the protective body.

3. The transformer with high safety according to claim 2, characterized in that: Both the head groove and the rod groove are arc-shaped structures.

4. The transformer with high safety according to claim 2, characterized in that: One end of both the head groove and the rod groove extends through the arc-shaped surface of the protective body.

5. The transformer with high safety according to claim 2, characterized in that: The second baffle is a circular plate with a cross groove.

6. The transformer with high safety according to claim 5, characterized in that: The insulating protective cover is made of plastic or rubber.

7. The transformer with high safety according to claim 4, characterized in that: The ends of the first baffle and the second baffle that are away from the head groove are connected by reinforcing ribs.

8. The transformer with high safety according to claim 7, characterized in that: The protective body, the first baffle, the second baffle, and the reinforcing ribs are an integrated structure.

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