Current transformer
By designing the structure of the protection box and upper cover in the current transformer, combined with the fixing method of elastic columns and hooks, the poor protection problem caused by weakening the viscosity of the insulating tape is solved, and the stable storage and use of the current transformer is achieved.
Patent Information
- Application Number
- CN202323517665.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2033-12-22
AI Technical Summary
During the long-term storage process of existing current transformers, the viscosity of the insulating tape is weakened, resulting in poor protection of the transformer coil, affecting the storage effect.
A current transformer is designed, adopting a structure of a protective box and an upper cover. Through the combination of elastic columns and hooks, the main body of the current transformer is fixed to prevent it from being separated from the installation position and to increase the protection effect of the insulating tape.
It effectively prevents poor protection caused by the reduction of viscosity of insulating tape, and improves the storage stability of the current transformer and the reliability of long-term use.
Smart Images
Figure CN222546050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mutual inductors, in particular to a current mutual inductor. Background Art
[0002] As the trend of modernization in society intensifies, people have put forward higher and higher requirements for electronic equipment. Taking the mutual inductor as an example, the mutual inductor is a general term for current transformers and voltage transformers. It can convert high voltage into low voltage and large current into small current for measurement or protection systems. The theoretical basis of the current transformer is electromagnetic induction, which is generally composed of a closed iron core and windings. The rated current, as a main parameter of the current transformer, refers to the maximum current value that the current transformer can withstand under the permitted working environment.
[0003] Most of the existing current transformers are wrapped with insulating tape on the outer wall of the transformer coil to protect the transformer coil. However, when the insulating tape is exposed to the air for a long time, the viscosity of the insulating tape is easily weakened. In severe cases, the insulating tape is separated from the transformer coil, resulting in the transformer coil being poorly protected by the insulating tape. This structural setting is not conducive to long-term storage. Summary of the invention
[0004] The purpose of the utility model is to provide a current transformer to solve the problem mentioned in the above background technology that most of the existing current transformers are wrapped with insulating tape on the outer wall of the transformer coil to protect the transformer coil, and the insulating tape is exposed to the air for a long time, which easily weakens the viscosity of the insulating tape, resulting in poor protection of the transformer coil by the insulating tape. The setting of this structure is not conducive to long-term storage.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current transformer, comprising a current transformer protection box and a current transformer body arranged in the current transformer protection box, a fixed block is fixedly connected in the current transformer protection box, a transformer installation position adapted to the current transformer body is opened on the fixed block, the current transformer body is arranged in the transformer installation position, an upper cover is arranged on the top of the current transformer protection box, the bottom of the upper cover is snapped to the top outer wall of the current transformer protection box, the fixed block is opened with a connection position, elastic columns are symmetrically fixedly connected in the connection position, and the top of the elastic columns is in contact with the top of the current transformer body.
[0006] Preferably, the elastic column includes an elastic connecting column, a hook and a hand-holding part, the bottom of the elastic connecting column is fixedly connected to the top surface of the connecting position, the hook is fixedly connected to one side surface of the top of the elastic connecting column, and the hand-holding part is fixedly connected to the top of the elastic connecting column.
[0007] Preferably, the bottom surface of the hook contacts the top surface of the current transformer body.
[0008] Preferably, a baffle is fixedly connected to the top surface of the current transformer protection box, a connecting groove adapted to the baffle is provided on the bottom surface of the upper cover, a plurality of clamping blocks are fixedly connected to the outer wall of the baffle, and the clamping blocks are in contact with the inner wall of the connecting groove.
[0009] Beneficial Effects
[0010] Compared with the existing technology, the beneficial effects of the utility model are:
[0011] The current transformer protection box and the upper cover provided in the utility model can protect the current transformer and effectively prevent the problem of poor protection caused by the reduction of the viscosity of the insulating tape. The above structural setting facilitates the long-term storage function of the current transformer and effectively solves the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall disassembled structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the current transformer protection box of the utility model;
[0014] Figure 3 It is a schematic diagram of the upper cover structure of the utility model.
[0015] 1. Current transformer protection box; 2. Current transformer body; 3. Upper cover; 4. Baffle; 5. Block;
[0016] 6. Fixing block; 7. Transformer installation position; 8. Connection position; 9. Elastic column; 10. Connection slot;
[0017] 91. Elastic connecting column; 92. Hook; 93. Hand-held part. DETAILED DESCRIPTION
[0018] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.
[0020] like Figure 1-3 It is a structural schematic diagram of a current transformer of a preferred embodiment of the utility model. In this embodiment, a current transformer includes a current transformer protection box 1 and a current transformer body 2 arranged in the current transformer protection box 1. A fixed block 6 is fixedly connected in the current transformer protection box 1, and a transformer installation position 7 adapted to the current transformer body 2 is opened on the fixed block 6. The current transformer body 2 is arranged in the transformer installation position 7 to provide an installation position for the current transformer body 2. At the same time, an upper cover 3 is arranged on the top of the current transformer protection box 1. The protection function of the current transformer body 2 is realized by the cooperation of the upper cover 3 and the current transformer protection box 1, and the bottom of the upper cover 3 is clamped on the top outer wall of the current transformer protection box 1. The connection and fixation between the upper cover 3 and the current transformer protection box 1 are realized through the setting of this structure. At the same time, by combining the setting of the above structure, the problems raised in the background technology are effectively solved. When the current transformer main body 2 is not used, the current transformer main body 2 is better protected. A connection position 8 is opened at the center of the fixed block 6, and an elastic column 9 is symmetrically fixedly connected in the connection position 8. The top of the elastic column 9 is in contact with the top of the current transformer main body 2, so that the current transformer main body 2 is fixed after being installed in the transformer installation position 7, and the current transformer main body 2 is effectively prevented from being separated from the transformer installation position 7.
[0021] In this embodiment, the elastic column 9 includes an elastic connecting column 91, a hook 92 and a hand-holding portion 93. The bottom of the elastic connecting column 91 is fixedly connected to the top surface of the connecting position 8. The material used for the elastic connecting column 91 is made of TPV. The hook 92 is fixedly connected to one side surface of the top of the elastic connecting column 91, and the hand-holding portion 93 is fixedly connected to the top of the elastic connecting column 91. The hand-holding portion 93 makes it convenient to operate the elastic connecting column 91 by hand.
[0022] In this embodiment, the bottom surface of the hook 92 contacts the top surface of the current transformer body 2 , and this structure performs a fixing function on the current transformer body 2 through the hook 92 .
[0023] In this embodiment, a baffle 4 is fixedly connected to the top surface of the current transformer protection box 1, and its structural setting plays a connecting role and also has a certain isolation effect. A connecting groove 10 adapted to the baffle 4 is opened on the bottom surface of the upper cover 3. By fixing a plurality of blocks 5 on the outer wall of the baffle 4, and the blocks 5 are in contact with the inner wall of the connecting groove 10, the friction between the current transformer protection box 1 and the upper cover 3 is increased, thereby realizing the connection and fixation between the current transformer protection box 1 and the upper cover 3.
[0024] Working principle:
[0025] During specific use, when the current transformer main body 2 needs to be stored, hold the upper cover 3 and the current transformer protection box 1 respectively with your hands, and use both hands to pull them in opposite directions to separate the upper cover 3 and the current transformer protection box 1, and squeeze the connecting part 93 by hand to bend the elastic connecting column 91 so that the hook 92 is not directly above the transformer installation position 7. At the same time, after the current transformer main body 2 is placed in the transformer installation position 7, release the connecting part 93 with your fingers, the elastic connecting column 91 is reset, and the hook 92 returns to directly above the transformer installation position 7, and the bottom surface of the hook 92 contacts with the insulating tape wrapped by the outer wall of the current transformer main body 2, thereby completing the fixing of the current transformer main body 2.
[0026] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.
Claims
1. A current transformer, comprising a current transformer protection box (1) and a current transformer body (2) arranged in the current transformer protection box (1), characterized in that: A fixed block (6) is fixedly connected inside the current transformer protection box (1), a transformer installation position (7) adapted to the current transformer body (2) is provided on the fixed block (6), the current transformer body (2) is arranged inside the transformer installation position (7), an upper cover (3) is arranged on the top of the current transformer protection box (1), the bottom of the upper cover (3) is snap-connected to the top outer wall of the current transformer protection box (1), a connection position (8) is provided on the fixed block (6), elastic columns (9) are symmetrically fixedly connected inside the connection position (8), and the top of the elastic columns (9) is in contact with the top of the current transformer body (2).
2. A current transformer according to claim 1, characterized in that: The elastic column (9) comprises an elastic connecting column (91), a hook (92) and a hand-held portion (93); the bottom of the elastic connecting column (91) is fixedly connected to the top surface of the connecting position (8); the hook (92) is fixedly connected to a side surface of the top of the elastic connecting column (91); and the hand-held portion (93) is fixedly connected to the top of the elastic connecting column (91).
3. A current transformer according to claim 2, characterized in that: The bottom surface of the hook (92) contacts the top surface of the current transformer body (2).
4. A current transformer according to claim 1, characterized in that: A baffle (4) is fixedly connected to the top surface of the current transformer protection box (1), a connection groove (10) adapted to the baffle (4) is provided on the bottom surface of the upper cover (3), a plurality of clamping blocks (5) are fixedly connected to the outer wall of the baffle (4), and the clamping blocks (5) are in contact with the inner wall of the connection groove (10).