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CN-224232482-U - Current transformer

CN224232482UCN 224232482 UCN224232482 UCN 224232482UCN-224232482-U

Abstract

The utility model discloses a current transformer, and relates to the technical field of current equipment. The power supply device comprises unit mutual inductance modules, wherein the signal connection of the unit mutual inductance modules and the other unit mutual inductance modules is completed through one side of the unit mutual inductance modules, the two unit mutual inductance modules are relatively independent, power supply connectors for contacting a power supply are respectively fixed at two ends of the top of each unit mutual inductance module, the two unit mutual inductance modules can complete power supply between the two unit mutual inductance modules by supplying power to the two power supply connectors which are intersected with each other at the tops of the two unit mutual inductance modules in the assembly process, and an interface for directly connecting electric equipment is formed at the position of an inner central shaft of each unit mutual inductance module. According to the utility model, through adopting the design of the unit mutual inductance module, the two modules are relatively independent and can be flexibly connected, so that the assembly position can be conveniently changed according to the use scene, and the connection requirements of electric equipment at different steering positions can be met.

Inventors

  • MA SHANYU

Assignees

  • 天津润磁科技有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (6)

  1. 1. The current transformer is characterized by comprising: The unit mutual inductance modules are connected with signals of another unit mutual inductance module through one side of the unit mutual inductance modules, the two unit mutual inductance modules are relatively independent, the two ends of the top of each unit mutual inductance module are fixedly provided with power supply connectors (4) for contacting a power supply, and in the assembly process, the two unit mutual inductance modules can supply power to the two power supply connectors (4) which are intersected with each other at the top of the two unit mutual inductance modules, so that the power supply between the two unit mutual inductance modules can be completed; The position of the central shaft inside the unit mutual inductance module is provided with an interface (3) for directly connecting electric equipment, and the two unit mutual inductance modules can change the assembly position of any one of the two unit mutual inductance modules according to the use scene in the assembly process, and the assembly between the electric equipment at two different steering positions and the interface (3) is completed.
  2. 2. The current transformer according to claim 1, wherein the two unit transformer modules are a first unit transformer module (101) and a second unit transformer module (201), respectively; The top and the bottom of the inner side surface of the first unit mutual inductance module (101) are respectively fixed with a contact bulge (102), and a plurality of induction bulges (104) for signal connection are fixed in the middle of the contact bulge (102); The top and the bottom of the inner side surface of the second unit mutual inductance module (201) are respectively provided with a detention groove (204) matched with the contact protrusion (102), and the middle part of each detention groove (204) of the second unit mutual inductance module (201) is fixedly provided with an assembly protrusion (203) matched with the position of the induction protrusion (104); the assembly protrusion (203) and the induction protrusion (104) are attached when the first unit mutual inductance module (101) and the second unit mutual inductance module (201) are assembled by means of the contact protrusion (102) and the retention groove (204), and signal connection between the first unit mutual inductance module (101) and the second unit mutual inductance module (201) is completed.
  3. 3. The current transformer as claimed in claim 2, wherein the receiving seats (103) are symmetrically arranged at two axial ends of the surface of the contact protrusion (102), and the assembly hanging seats (202) are fixedly arranged at the axial ends of the cavities of the corresponding retention grooves (204), and when any component of the first unit mutual inductance module (101) or the second unit mutual inductance module (201) moves relatively along the inner plane fitting direction, the assembly hanging seats (202) and the receiving seats (103) realize axial alignment fitting through inner plane fitting guide.
  4. 4. The current transformer as set forth in claim 2, wherein a magnetic attraction layer is disposed at a position of the contact protrusion (102) where the induction protrusion (104) is removed, a contact layer with opposite polarity is disposed on an inner wall of the retention groove (204) corresponding to a contact area of the magnetic attraction layer, and when the first unit transformer module (101) and the second unit transformer module (201) are assembled, the contact protrusion (102) and the magnetic attraction layer in the retention groove (204) achieve pre-positioning attraction through opposite magnetic poles.
  5. 5. The current transformer according to claim 3, wherein the two assembly hanging bases (202) are vertically arranged in the retention groove (204), hooks at one ends of the two assembly hanging bases (202) face to an axial direction, guide inclined planes matched with the movement track of the hooks are arranged in the inner cavity of the storage base (103), and when the assembly hanging bases (202) axially slide along the storage base (103), the guide inclined planes (105) guide the hooks to realize radial elastic deformation until the hooks completely enter the storage base (103) and then recover to an initial shape to form axial limit.
  6. 6. The current transformer according to claim 3, wherein a guide groove is formed in an axial jogged surface of the assembly hanging seat (202) and the storage seat (103), a limit steel ball is embedded in the guide groove, an elastic limiting block is arranged at a position, corresponding to the tail end of the guide groove (106), of an inner cavity of the storage seat (103), when the assembly hanging seat (202) is axially pushed along the storage seat (103), the limit steel ball (107) rolls in the guide groove (106) and triggers the elastic limiting block (108) to deform until the assembly hanging seat (202) is completely embedded to form positioning.

Description

Current transformer Technical Field The utility model relates to the technical field of current equipment, in particular to a current transformer. Background A current transformer is a device for measuring current or protecting a circuit in an electric power system. Through searching, the Chinese patent application with publication number of CN215578164U proposes a current transformer, after a fixed plate is fixed on a bottom plate through a rotating sleeve, air in a groove is extracted through an air bag to generate negative pressure, the adsorptivity between the rotating sleeve and the screw rod is enhanced, the loosening of the rotating sleeve can be prevented, the stability of the rotating sleeve for fixing the fixing plate and the bottom plate is improved, and meanwhile, the rotating sleeve is prepared by the epoxy resin containing FR-EPP The flame retardant coating of the high-efficiency flame retardant can improve the flame retardance of the transformer body and reduce the potential safety hazard generated when a fire disaster occurs. However, in the practical use process, the above disclosed device and the existing device of the phase type are difficult to perform angle adjustment according to the equipment layout due to the fixed iron core winding, so that the suitability of the special-shaped installation position is poor. Disclosure of utility model The present utility model is directed to providing a current transformer to solve the above-mentioned problems. In order to achieve the above purpose, the utility model provides a technical scheme that the current transformer comprises: The two unit mutual inductance modules are connected with signals of another unit mutual inductance module through one side of the unit mutual inductance module, the two unit mutual inductance modules are relatively independent, power supply connectors for contacting a power supply are fixed at two ends of the top of the unit mutual inductance module, and in the assembling process, the two unit mutual inductance modules can supply power through the two power supply connectors intersecting the tops of the two unit mutual inductance modules, so that power supply between the two unit mutual inductance modules can be completed; The position of the central shaft inside the unit mutual inductance module is provided with an interface for directly connecting electric equipment, and the two unit mutual inductance modules can change the assembly position of any one of the two unit mutual inductance modules according to the use scene in the assembly process, and the assembly between the electric equipment at two different steering positions and the interface is completed. Further, the two unit mutual inductance modules are a first unit mutual inductance module and a second unit mutual inductance module respectively; The top and the bottom of the inner side surface of the first unit mutual inductance module are respectively fixed with a contact bulge, and a plurality of induction bulges for signal connection are fixed in the middle of the contact bulge; The top and the bottom of the inner side surface of the second unit mutual inductance module are respectively provided with a detention groove matched with the contact protrusion, and the middle part of each detention groove of the second unit mutual inductance module is fixedly provided with an assembly protrusion matched with the sensing protrusion in position; The assembly bulge and the induction bulge are attached when the first unit mutual inductance module and the second unit mutual inductance module are assembled by means of the contact bulge and the retention groove, and signal connection between the first unit mutual inductance module and the second unit mutual inductance module is completed. Furthermore, the receiving seats are symmetrically arranged at the two axial ends of the surface of the contact bulge, the assembly hanging seats are fixedly arranged at the axial ends of the corresponding retention groove cavities, and when any component of the first unit mutual inductance module or the second unit mutual inductance module moves relatively along the inner side plane fitting direction, the assembly hanging seats and the receiving seats realize axial alignment jogging through the inner side plane fitting guide. Furthermore, the position of the contact bulge, where the induction bulge is removed, is provided with a magnetic attraction layer, the contact area of the inner wall of the detention groove corresponding to the magnetic attraction layer is provided with a contact layer with opposite polarity, and when the first unit mutual inductance module and the second unit mutual inductance module are assembled, the contact bulge and the magnetic attraction layer in the detention groove realize prepositioning adsorption through opposite magnetic poles. Furthermore, two the assembly hanging seat is erected in the detention groove, two the couple of assembly hanging seat one