Current detection device for current transformer
Through the design of the current detector and solid wire assembly, the wire is fixed by using threaded rings and ring sleeves, which solves the problem of loose current clamps and improves detection efficiency.
Patent Information
- Application Number
- CN202422137024.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-29
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, when the current transformer is detected, the current clip is prone to loosening due to impact, which causes time-consuming detection.
The design includes a current detector and a solid wire assembly. By installing structures such as vertical plates, connecting rods, restriction plates and springs, threaded rings and ring sleeves are used to fix the wires to prevent loosening.
Improve the fixing effect of the wire, prevent loosening, and improve detection efficiency.
Smart Images
Figure CN223166814U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of current detection, and particularly relates to a current detection device for a current transformer. Background Technique
[0002] A current transformer is an instrument that measures by converting a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. A current transformer consists of a winding and a closed iron core. During the use of a current transformer, it is necessary to detect the current of the current transformer to prevent damage to the current transformer due to excessive current in subsequent use.
[0003] Currently, when detecting the current of a current transformer, it is usually manual to use a current clamp to contact the wire for current detection. However, when the current clamp is impacted during the process of detecting the wire, the current clamp is prone to looseness, and it is necessary to re-clamp the current clamp on the wire, which is time-consuming. Content of the Utility Model
[0004] The purpose of the utility model is to provide a current detection device for a current transformer, which solves the problem that currently, when detecting the current of a current transformer, it is usually manual to use a current clamp to contact the wire for current detection. However, when the current clamp is impacted during the process of detecting the wire, the current clamp is prone to looseness, and it is necessary to re-clamp the current clamp on the wire, which is time-consuming.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a current detection device for a current transformer, including a current detector and a wire fixing component. A mounting vertical plate is fixedly connected to the upper surface of the current detector. Circular holes are opened on both sides of one surface of the mounting vertical plate. The wire fixing component includes a circular ring sleeve and a threaded ring. There are two groups of circular ring sleeves, and the two groups of circular ring sleeves are respectively arranged in the two circular holes and fixedly connected thereto. Threaded teeth are opened on the inner wall of one side of the circular ring sleeve. One end of the threaded ring is arranged in the circular ring sleeve and is in threaded cooperation with it. An elastic clamping column is arranged on the other side of the circular ring sleeve, and the top end of the elastic clamping column is in close contact with the bottom end of the threaded ring.
[0007] The other end of the threaded ring is fixedly connected to a connecting ring, and the connecting ring is arranged outside the circular ring sleeve.
[0008] A plurality of connecting rods are fixedly connected to both sides of one surface of the mounting vertical plate. There are four groups of connecting rods, and two of them are arranged above the circular ring sleeve in pairs. One end of the connecting rod is rotatably connected to a limiting plate. There are four groups of limiting plates, and a matching spring is fixedly connected between adjacent two groups of limiting plates. One end surface of the limiting plate is in contact with the side surface of the connecting ring.
[0009] On both sides of the upper surface of the current detector, there are fixed connection terminal posts. The terminal posts are arranged on one side of the installation vertical plate. The top of the terminal post is fixedly connected with a fixing plate, and a wire passing groove is opened inside the fixing plate.
[0010] On one side of the bottom of the terminal post, there is a fixed connection clamping sleeve. Inside the clamping sleeve, there is a wiring port, and the wiring port is electrically connected to the current detector.
[0011] The bottom surface of the current detector is fixedly connected with a bottom plate, and both the bottom plate and the installation vertical plate are made of insulating materials.
[0012] The utility model has the following beneficial effects:
[0013] By setting the installation vertical plate, connecting rod, limiting plate, matching spring and wire fixing component in the utility model, the wire is passed through the threaded ring and the circular ring sleeve, and one end of the wire is fixed around the terminal post through the clamping sleeve. Then, the limiting plate is squeezed so that its end face is released from the restriction of the connecting ring. Then, the threaded ring is rotated through the connecting ring so that it moves down along the thread teeth in the circular ring sleeve and squeezes the top of the elastic clamping post, so that the elastic clamping post clamps the wire, and then the periphery of the wire is fixed. Then, the limiting plate is released. Under the action of the matching spring, the end face of the limiting plate is attached to the side surface of the connecting ring, avoiding the possible rotation of the connecting ring, improving the fixing effect of the electricity, effectively preventing the wire from loosening, and improving the detection efficiency; reversing the connecting ring, the threaded ring moves up along the thread teeth and releases the extrusion on the top of the elastic clamping post, so that the wire can be taken out from the circular ring sleeve, and the fixing and disassembly efficiency is high.
[0014] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.
[0016] Figure 1 It is a three-dimensional structure diagram of the present utility model;
[0017] Figure 2 It is another three-dimensional structure diagram of the present utility model;
[0018] Figure 3 It is for Figure 1 The enlarged view of area A in
[0019] Figure 4 is the front view of the structure of the present utility model;
[0020] Figure 5 is Figure 4 the schematic diagram of the sectional structure of B-B in
[0021] Figure 6 is Figure 5 the enlarged view of area C in
[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:
[0023] 1. Current detector; 101. Terminal; 102. Wire threading groove; 103. Jacket; 2. Base plate; 201. Installation vertical plate; 202. Connecting rod; 203. Limiting plate; 204. Matching spring; 3. Wire fixing component; 301. Ring sleeve; 302. Threaded ring; 303. Threaded tooth; 304. Elastic clamping post; 305. Connecting ring. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached 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 making creative efforts belong to the scope of protection of the present utility model.
[0025] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] Please refer to Figures 1-6As shown in the figure, the utility model relates to a current detection device for a current transformer, which includes a current detector 1 and a wire fixing component 3. The upper surface of the current detector 1 is fixedly connected with an installation vertical plate 201. Circular holes are opened on both sides of one surface of the installation vertical plate 201. The wire fixing component 3 includes a circular ring sleeve 301 and a threaded ring 302. There are two groups of circular ring sleeves 301, and the two groups of circular ring sleeves 301 are respectively arranged in the two circular holes and fixedly connected with them. Threaded teeth 303 are opened on the inner wall of one side of the circular ring sleeve 301. One end of the threaded ring 302 is arranged in the circular ring sleeve 301 and is in threaded cooperation with it. An elastic clamping column 304 is arranged on the other side of the circular ring sleeve 301, and the top end of the elastic clamping column 304 is in close contact with the bottom end of the threaded ring 302.
[0028] The other end of the threaded ring 302 is fixedly connected with a connecting ring 305, and the connecting ring 305 is arranged outside the circular ring sleeve 301.
[0029] Multiple connecting rods 202 are fixedly connected to both sides of one surface of the installation vertical plate 201. There are four groups of connecting rods 202, and two of them are arranged above the circular ring sleeve 301 in pairs. One end of the connecting rod 202 is rotatably connected with a limiting plate 203. There are four groups of limiting plates 203, and a matching spring 204 is fixedly connected between two adjacent groups of limiting plates 203. One end face of the limiting plate 203 is in contact with the side surface of the connecting ring 305.
[0030] Terminal posts 101 are fixedly connected to both sides of the upper surface of the current detector 1. The terminal posts 101 are arranged on one side of the installation vertical plate 201. A fixing plate is fixedly connected to the top end of the terminal post 101, and a wire passing groove 102 is opened inside the fixing plate.
[0031] A clamping sleeve 103 is fixedly connected to one side of the bottom of the terminal post 101. A wiring port is arranged inside the clamping sleeve 103, and the wiring port is electrically connected to the current detector 1.
[0032] The bottom surface of the current detector 1 is fixedly connected with a bottom plate 2, and both the bottom plate 2 and the installation vertical plate 201 are made of insulating materials.
[0033] It should be noted that when current detection is required, the wire is passed through the threaded ring 302 and the circular ring sleeve 301, and then through the wire groove 102. One end of the wire is fixed around the terminal 101 through the jacket 103. Then, the limiting plate 203 is squeezed so that its end face is released from the restriction of the connecting ring 305. Then, by rotating the connecting ring 305, the threaded ring 302 is driven to rotate, so that it moves downward along the thread teeth 303 in the circular ring sleeve 301 and squeezes the top end of the elastic clamping post 304, so that the elastic clamping post 304 clamps the circumference of the wire, and then the circumference of the wire is fixed. Then, the limiting plate 203 is released. Under the action of the cooperation spring 204, the end face of the limiting plate 203 is attached to the side surface of the connecting ring 305, avoiding the possible rotation of the connecting ring 305, improving the fixing effect of the electrical property, effectively preventing the wire from loosening, and improving the detection efficiency; when the wire needs to be removed, the connecting ring 305 is rotated in reverse, so that the threaded ring 302 moves upward along the thread teeth 303 and releases the extrusion of the top end of the elastic clamping post 304, so that the wire can be taken out from the circular ring sleeve 301, and the efficiency of fixing, disassembling and assembling is high.
[0034] In the description of this specification, the descriptions with reference to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. A current detection device for a current transformer, comprising a current detector (1) and a wire fixing assembly (3), characterized in that: An installation vertical plate (201) is fixedly connected to the upper surface of the current detector (1). Circular holes are formed on both sides of one surface of the installation vertical plate (201). The wire fixing assembly (3) includes a circular ring sleeve (301) and a threaded ring (302). Two sets of circular ring sleeves (301) are provided, and the two sets of circular ring sleeves (301) are respectively arranged in the two circular holes and fixedly connected thereto. Threaded teeth (303) are formed on the inner wall of one side of the circular ring sleeve (301). One end of the threaded ring (302) is arranged in the circular ring sleeve (301) and is in threaded cooperation therewith. An elastic clamping column (304) is arranged on the other side of the circular ring sleeve (301), and the top end of the elastic clamping column (304) is in close contact with the bottom end of the threaded ring (302).
2. The current detection device for a current transformer according to claim 1, characterized in that, The other end of the threaded ring (302) is fixedly connected to a connection ring (305), and the connection ring (305) is arranged outside the circular ring sleeve (301).
3. The current detection device for a current transformer according to claim 2, wherein, A plurality of connecting rods (202) are fixedly connected to both sides of one surface of the installation vertical plate (201). Four sets of connecting rods (202) are provided, and two of them are arranged above the circular ring sleeve (301) in pairs. One end of the connecting rod (202) is rotatably connected to a limiting plate (203). Four sets of limiting plates (203) are provided, and a matching spring (204) is fixedly connected between two adjacent limiting plates (203). One end face of the limiting plate (203) is in contact with the side surface of the connection ring (305).
4. The current detection device for a current transformer according to claim 3, wherein, Terminal posts (101) are fixedly connected to both sides of the upper surface of the current detector (1). The terminal posts (101) are arranged on one side of the installation vertical plate (201). A fixing plate is fixedly connected to the top end of the terminal post (101), and a wire passing groove (102) is formed inside the fixing plate.
5. The current detection device for a current transformer according to claim 4, wherein, A clamping sleeve (103) is fixedly connected to one side of the bottom of the terminal post (101). A wiring port is arranged inside the clamping sleeve (103), and the wiring port is electrically connected to the current detector (1).
6. The current detection device for a current transformer according to claim 5, characterized in that, A bottom plate (2) is fixedly connected to the bottom surface of the current detector (1). Both the bottom plate (2) and the installation vertical plate (201) are made of insulating materials.