Current transformer device for efficient current monitoring
By designing dustproof and cleaning components on the current transformer, the problem of dust and dirt affecting measurement accuracy has been solved, achieving higher detection accuracy and monitoring efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-13
AI Technical Summary
During use, dust and dirt can easily enter the current transformer, affecting measurement accuracy and causing malfunctions.
A current transformer device including a dustproof component and a cleaning component is designed. The dustproof component forms a sealed space through first and second dustproof housings, and the cleaning component cleans the surface of the current transformer through a rotating rod and a cleaning wheel.
This effectively prevents dust and dirt from entering the current transformer, improving measurement accuracy and monitoring efficiency.
Smart Images

Figure CN223993207U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of current transformer technology, specifically relating to a high-efficiency current transformer device for current monitoring. Background Technology
[0002] A current transformer (CT) is an electrical device used for current monitoring, operating based on the principle of electromagnetic induction. It proportionally converts high current on the primary side into low current (typically 5A or 1A) on the secondary side, facilitating the measurement, monitoring, and protection of power systems. CTs are characterized by high precision, isolation, and standardized output, and are widely used in current measurement, energy metering, and relay protection in power systems. Their core structure includes a primary winding, a secondary winding, and an iron core, enabling safe and accurate monitoring and conversion of large currents.
[0003] When current transformers monitor the current of equipment, dust and dirt may adhere to their surface. These contaminants may enter the current transformer through gaps or openings, causing contamination or damage to internal components. Once contaminants enter the interior, they can easily interfere with the magnetic field distribution or affect electrical connections, thereby reducing the measurement accuracy of the current transformer or even causing malfunctions. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency current transformer device for current monitoring, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-efficiency current transformer device for current monitoring includes,
[0007] The support mechanism includes a support plate and a current transformer fixedly mounted on the surface of the support plate.
[0008] The dustproof mechanism includes dustproof components for protecting the current transformer from dust, and cleaning components for cleaning the surface of the current transformer.
[0009] As a preferred embodiment of this utility model, the dustproof component includes a first dustproof shell and a second dustproof shell that are slidably mounted on the surface of the support plate, protruding plates that are fixedly mounted on the surfaces of the first dustproof shell and the second dustproof shell, connecting bolts for fixing the two protruding plates, and mounting nuts that cooperate with the connecting bolts.
[0010] As a preferred embodiment of this utility model, the surface of the support plate is provided with two sliding grooves, and the surfaces of the first dustproof shell and the second dustproof shell are respectively fixedly installed with two sliders that cooperate with the sliding grooves.
[0011] As a preferred embodiment of this utility model, the surface of the first dustproof shell is provided with a sealing groove, and the surface of the second dustproof shell is provided with a sealing strip that works in conjunction with the sealing groove.
[0012] As a preferred embodiment of this utility model, the cleaning component includes a rotating rod rotatably mounted between the first dustproof housing and the second dustproof housing, a connecting circular plate fixedly mounted at the end of the rotating rod, and a cleaning wheel and a cleaning plate fixedly mounted on the surface of the connecting circular plate for cleaning the surface of the current transformer.
[0013] As a preferred embodiment of the present invention, the cleaning component further includes a mounting bearing fixedly installed on the surface of the support plate via a connecting rod, the mounting bearing being sleeved on the surface of the rotating rod.
[0014] As a preferred embodiment of this utility model, a limit rod is fixedly installed on the surface of the rotating rod, and a stop bar that prevents the limit rod from rotating is fixedly installed on the surface of the first dustproof shell and the second dustproof shell, respectively.
[0015] Compared with the prior art, the beneficial effects of this utility model are: by cooperating with the dustproof component and the cleaning component, the current transformer is protected from dust and its surface is cleaned at the same time. This solves the problem that dust on the surface of the current transformer during use can easily affect its measurement accuracy. It achieves the effect of avoiding the influence of dust and dirt on the current transformer, and improves the detection accuracy and monitoring efficiency of the current transformer. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the current transformer structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the dustproof component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.
[0021] In the diagram: 100, Support mechanism; 101, Support plate; 102, Current transformer; 200, Dustproof mechanism; 201, Dustproof component; 201a, First dustproof housing; 201b, Second dustproof housing; 201c, Protruding plate; 201d, Connecting bolt; 202, Cleaning component; 202a, Rotating rod; 202b, Connecting circular plate; 202c, Cleaning wheel; 202d, Cleaning plate; 202e, Mounting bearing; 202f, Limiting rod. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0025] Example
[0026] Reference Figure 1-4 This is an embodiment of the present invention, which provides a high-efficiency current transformer device for current monitoring, comprising:
[0027] The support mechanism 100 includes a support plate 101 and a current transformer 102 fixedly installed on the surface of the support plate 101.
[0028] The dustproof mechanism 200 includes a dustproof component 201 for dustproofing the current transformer 102 and a cleaning component 202 for cleaning the surface of the current transformer 102.
[0029] The dustproof component 201 and the cleaning component 202 work together to prevent dust from entering the current transformer 102 and clean its surface. This solves the problem that dust can easily affect the measurement accuracy of the current transformer 102 during use. The current transformer 102 is protected from dust and dirt, thus improving its detection accuracy and monitoring efficiency.
[0030] Specifically, the dustproof component 201 includes a first dustproof housing 201a and a second dustproof housing 201b that are slidably mounted on the surface of the support plate 101, a protruding plate 201c that is fixedly mounted on the surface of the first dustproof housing 201a and the second dustproof housing 201b, a connecting bolt 201d for fixing and connecting the two protruding plates 201c, and a mounting nut that is used in conjunction with the connecting bolt 201d.
[0031] The first dustproof housing 201a and the second dustproof housing 201b are joined together to form a complete sealed space, so that the current transformer 102 is located inside the sealed space. Firstly, the current transformer 102 is protected from dust, preventing dust from falling inside the current transformer 102 and affecting its monitoring accuracy. Secondly, the first dustproof housing 201a and the second dustproof housing 201b are made of copper or aluminum, which can increase the electromagnetic shielding effect and reduce the interference of external magnetic fields.
[0032] Furthermore, two grooves are formed on the surface of the support plate 101, and two sliders that cooperate with the grooves are fixedly installed on the surfaces of the first dustproof shell 201a and the second dustproof shell 201b, respectively.
[0033] The sliding groove and the slider are used to limit the sliding of the first dustproof shell 201a and the second dustproof shell 201b, thereby improving the stability of the first dustproof shell 201a and the second dustproof shell 201b when moving, and improving the positioning of the first dustproof shell 201a and the second dustproof shell 201b when spliced and closed.
[0034] Preferably, the surface of the first dustproof housing 201a is provided with a sealing groove, and the surface of the second dustproof housing 201b is provided with a sealing strip that works in conjunction with the sealing groove.
[0035] The sealing groove and sealing strip work together to improve the sealing connection between the first dustproof housing 201a and the second dustproof housing 201b, preventing dust from entering from the gap at the connection between the first dustproof housing 201a and the second dustproof housing 201b, thereby improving the protection effect on the current transformer 102.
[0036] Furthermore, the cleaning component 202 includes a rotating rod 202a rotatably mounted between the first dustproof housing 201a and the second dustproof housing 201b, a connecting circular plate 202b fixedly mounted at the end of the rotating rod 202a, and a cleaning wheel 202c and a cleaning plate 202d fixedly mounted on the surface of the connecting circular plate 202b for cleaning the surface of the current transformer 102.
[0037] A rocker arm is fixedly installed at the end of the rotating rod 202a. The rotating rod 202a drives the connecting circular plate 202b to rotate. The connecting circular plate 202b drives the cleaning wheel 202c and the cleaning plate 202d to rotate, thereby cleaning the surface of the current transformer 102 by the cleaning wheel 202c and the cleaning plate 202d, so as to avoid dust and dirt affecting the measurement accuracy of the current transformer 102.
[0038] Specifically, the cleaning component 202 also includes a mounting bearing 202e that is fixedly mounted on the surface of the support plate 101 via a connecting rod, and the mounting bearing 202e is sleeved on the surface of the rotating rod 202a.
[0039] The bearing 202e is installed to install and limit the rotating rod 202a, thereby improving the stability of the rotating rod 202a during rotation.
[0040] Furthermore, a limit rod 202f is fixedly installed on the surface of the rotating rod 202a, and a stop rod that prevents the limit rod 202f from rotating is fixedly installed on the surface of the first dustproof shell 201a and the second dustproof shell 201b, respectively.
[0041] The rotation angle of the rotating rod 202a can be controlled by the cooperation between 201f and the stop rod, thereby controlling the rotation angle of the cleaning plate 202d and preventing the cleaning plate 202d from colliding with the surface of the current transformer 102 when cleaning the surface of the current transformer 102.
[0042] In use, the current transformer 102 needs to be sealed. The first dustproof housing 201a and the second dustproof housing 201b are moved towards each other so that the first dustproof housing 201a and the second dustproof housing 201b fit together. The sealing strip is located inside the sealing groove. The two protruding plates 201c are installed together using the connecting bolts 201d and the mounting nuts. Then the first dustproof housing 201a and the second dustproof housing 201b are installed so that the first dustproof housing 201a and the second dustproof housing 201b form a sealed space to protect the current transformer 102.
[0043] Rotating the rocker arm 202a causes the connecting plate 202b to rotate, which in turn drives the cleaning wheel 202c and the cleaning plate 202d to rotate. This causes the bristles on the surfaces of the cleaning wheel 202c and the cleaning plate 202d to clean the surface of the current transformer 102. The limiting rod 202f works in conjunction with the stop rod to limit the range of rotation angle of the rocker arm 202a.
[0044] In summary, the cooperation between the dustproof component 201 and the cleaning component 202 is used to prevent dust from falling on the current transformer 102 and to clean the surface of the current transformer 102. This solves the problem that dust falling on the surface of the current transformer 102 during use can easily affect its measurement accuracy. It achieves the effect of avoiding the influence of dust and dirt on the current transformer 102, and improves the detection accuracy and monitoring efficiency of the current transformer 102.
[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A high efficiency current monitoring current transformer arrangement, characterized by: Comprising, The support mechanism (100) comprises a support plate (101), and a current transformer (102) fixedly installed on the surface of the support plate (101); The dustproof mechanism (200) comprises a dustproof component (201) for preventing dust from entering the current transformer (102), and a cleaning component (202) for cleaning the surface of the current transformer (102).
2. A current transformer arrangement for efficient current monitoring according to claim 1, characterized in that The dustproof component (201) comprises a first dustproof shell (201a) and a second dustproof shell (201b) slidably installed on the surface of the support plate (101), a protruding plate (201c) fixedly installed on the surface of the first dustproof shell (201a) and the second dustproof shell (201b), a connecting bolt (201d) for fixedly connecting the two protruding plates (201c), and a mounting nut used in cooperation with the connecting bolt (201d).
3. A current transformer arrangement for efficient current monitoring according to claim 2, characterized in that The surface of the support plate (101) is provided with two sliding grooves, and the surfaces of the first dustproof shell (201a) and the second dustproof shell (201b) are respectively fixedly provided with two sliding blocks used in cooperation with the sliding grooves.
4. A current transformer arrangement for efficient current monitoring according to claim 3, characterized in that The surface of the first dustproof shell (201a) is provided with a sealing groove, and the surface of the second dustproof shell (201b) is provided with a sealing strip used in cooperation with the sealing groove.
5. A current transformer arrangement for efficient current monitoring according to claim 4, characterized in that The cleaning component (202) comprises a rotating rod (202a) rotatably installed between the first dustproof shell (201a) and the second dustproof shell (201b), a connecting circular plate (202b) fixedly installed on the end of the rotating rod (202a), a cleaning wheel (202c) and a cleaning plate (202d) fixedly installed on the surface of the connecting circular plate (202b) and used for cleaning the surface of the current transformer (102).
6. A current transformer arrangement for efficient current monitoring according to claim 5, characterized in that The cleaning component (202) further comprises a mounting bearing (202e) fixedly installed on the surface of the support plate (101) through a connecting rod, and the mounting bearing (202e) is sleeved on the surface of the rotating rod (202a).
7. A current transformer arrangement for efficient current monitoring according to claim 6, characterized in that The surface of the rotating rod (202a) is fixedly provided with a limiting rod (202f), and the surfaces of the first dustproof shell (201a) and the second dustproof shell (201b) are respectively fixedly provided with a blocking rod for blocking the rotation of the limiting rod (202f).