CN-224203284-U - Prevent disassembling wireless transmission open-type current transformer for measurement

CN224203284UCN 224203284 UCN224203284 UCN 224203284UCN-224203284-U

Abstract

The utility model provides a wireless transmission opening type current transformer for anti-disassembly metering, which belongs to the technical field of equipment metering monitoring, and comprises a fixing column and a spring which are sequentially installed in an installation hole after an opening of the transformer is closed, wherein the installation hole corresponds to a limiting hole when a main shell A and a main shell B are matched, one end of the fixing column can be installed Kong Tanchu from the installation hole and inserted into the limiting hole, so that the main shell A and the main shell B are clamped tightly, the anti-disassembly of the opening type current transformer is realized, and the continuity of current metering is ensured.

Inventors

LI DASHUAI
GAO HONGYAN
YU PENG

Assignees

山东达斯特信息技术有限公司

Dates

Publication Date: 20260505
Application Date: 20250411

Claims (10)

1. An anti-disassembly metering wireless transmission open type current transformer, which is characterized by comprising: A transformer main body unit and an anti-dismantling unit; the transformer main body unit comprises a main shell A and a main shell B; The main shell A and the main shell B can be assembled and matched to realize the opening closure of the current transformer; the anti-dismantling unit comprises a fixed column, a spring and a plug; The main shell A is provided with a mounting hole; a limiting hole is formed in the main shell B; After the opening of the transformer is closed, the fixed column and the spring are sequentially installed in the installation hole; when the main shell A and the main shell B are matched, the mounting hole corresponds to the limiting hole; One end of the fixing column can be inserted into the limiting hole from the installation Kong Tanchu.
2. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 1, wherein the fixed column is in a shape of a hemispherical shape at the rear end of a front end cylinder.
3. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 1, wherein the plug is cylindrical in shape.
4. The disassembly-preventing metering wireless transmission opening type current transformer according to claim 1, wherein the mounting hole is sealed by a plug, and the upper plane of the main shell a is flush with the upper plane of the plug.
5. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 1, wherein the transformer main body unit further comprises a main housing cover a and a main housing cover B; The main housing cover A and the main housing cover B are respectively arranged on the main housing A and the main housing B, so that the main housing A and the main housing B are sealed.
6. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 1, further comprising a cable fixing unit; The cable fixing unit comprises a transmission screw; The screw rod part of the transmission screw penetrates through the reserved hole of the main shell A, and the positioning head of the head part of the transmission screw is inserted into the positioning hole on the main shell A.
7. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 6, wherein the cable fixing unit further comprises a cable fixing clip and a circlip for a shaft; the cable fixing clamp is provided with a self-locking nut; And installing the cable fixing clamp on the screw rod of the transmission screw.
8. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 7, wherein the driving screw is provided with a clamping groove.
9. The disassembly-preventing metering wireless transmission opening type current transformer according to claim 8, wherein the elastic retainer ring for the shaft is clamped on the clamping groove.
10. The disassembly-preventing wireless transmission opening type current transformer for metering according to claim 1, further comprising a positioning metering wireless transmission unit; The positioning measurement wireless transmission unit comprises a detection circuit board; The detection circuit board is internally provided with a positioning circuit, an electric quantity metering circuit and a chargeable circuit.

Description

Prevent disassembling wireless transmission open-type current transformer for measurement Technical Field The utility model belongs to the technical field of equipment metering monitoring, and particularly relates to a wireless transmission opening type current transformer for disassembly prevention metering. Background The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. An open type current transformer is a current measuring device, widely applied to a power system, and is generally used for protecting, metering, monitoring and measuring current. Is suitable for the occasion of inconvenient disconnection of the main circuit. The transformer is designed with an opening so that it can be directly sleeved on the cable without breaking the circuit. The open-type current transformer has an iron core around which a secondary winding is wound, typically with a number of turns, and when a main current passes through the components of the open-type current transformer, a magnetic field is generated around the conductor, which magnetic field forms a closed loop through the iron core, thereby affecting the magnetic flux in the iron core. The magnetic flux change caused by the magnetic field change generates an induced voltage in the coil, the magnitude of which is proportional to the main current. The design makes the installation and the disassembly very convenient, and saves the labor and the time cost. However, since the open type current transformer is mounted on the cable, any person can detach the open type current transformer at any time, which has an adverse effect on the management of the open type current transformer and the continuous measurement of the current. Disclosure of utility model The utility model aims to provide a wireless transmission open type current transformer for anti-disassembly measurement, which solves the technical problem that the existing open type current transformer is easy to disassemble and ensures the continuity of current measurement. In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wireless transmission opening type current transformer for disassembly prevention metering, which comprises the following components: A transformer main body unit and an anti-dismantling unit; the transformer main body unit comprises a main shell A and a main shell B; The main shell A and the main shell B can be assembled and matched to realize the opening closure of the current transformer; the anti-dismantling unit comprises a fixed column, a spring and a plug; The main shell A is provided with a mounting hole; a limiting hole is formed in the main shell B; After the opening of the transformer is closed, the fixed column and the spring are sequentially installed in the installation hole; when the main shell A and the main shell B are matched, the mounting hole corresponds to the limiting hole; One end of the fixing column can be inserted into the limiting hole from the installation Kong Tanchu. Further, the fixed column is of a front-end cylindrical structure and of a rear-end hemispherical structure. Furthermore, the plug is cylindrical in shape and is in interference fit with the mounting hole. Furthermore, the mounting hole is sealed by a plug, the upper plane of the main shell A is flush with the upper plane of the plug, and the mounting hole is not detachable after being mounted. Further, the main transformer body unit further comprises a main shell cover A and a main shell cover B; The main housing cover A and the main housing cover B are respectively arranged on the main housing A and the main housing B, so that the main housing A and the main housing B are sealed. Further, the cable fixing device also comprises a cable fixing unit; The cable fixing unit comprises a transmission screw; The screw rod part of the transmission screw penetrates through the reserved hole of the main shell A, and the positioning head of the head part of the transmission screw is inserted into the positioning hole on the main shell A. Further, the cable fixing unit further comprises a cable fixing clamp and an elastic retainer ring for a shaft; the cable fixing clamp is provided with a self-locking nut; And installing the cable fixing clamp on the screw rod of the transmission screw. Further, the driving screw is provided with a clamping groove. Further, the shaft is clamped on the clamping groove by the elastic retainer ring. Further, the system also comprises a positioning measurement wireless transmission unit; The positioning measurement wireless transmission unit comprises a detection circuit board; The detection circuit board is internally provided with a positioning circuit, an electric quantity metering circuit and a chargeable circuit. The technical scheme of the utility model has the following beneficial effects: According to the util