Anti-theft current transformer
By introducing connectors, covers, and pressure-resistant components into the anti-theft current transformer, the problems of easy disassembly of the protective cover and easy deformation of the outer shell are solved, achieving higher safety and pressure resistance.
Patent Information
- Application Number
- CN202420552985.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-20
AI Technical Summary
Existing anti-theft current transformer protective covers are easily disassembled with tools, resulting in low security. The outer casing is also prone to deformation during drops or transportation, affecting the internal iron core and having insufficient pressure resistance.
The design incorporates connectors, a cover, fixing lugs, and pressure-resistant components. The cover is secured with an anti-theft lock to prevent bolt disassembly, and pressure-resistant components are installed inside the casing to improve stability and prevent deformation caused by external impacts.
It enhances the security against electricity theft and its resistance to pressure. The cover is difficult to remove illegally, and the outer shell is not easily deformed during collisions and transportation, thus protecting the internal iron core.
Smart Images
Figure CN222338052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mutual inductors, in particular to an anti-theft current mutual inductor. Background Art
[0002] A transformer is a device used to measure current and voltage. It converts the signal of the measured circuit into a voltage or current signal suitable for measurement through the principle of electromagnetic induction. Transformers are often used in power systems to measure high voltage and high current. The working principle of the transformer is based on Faraday's law of electromagnetic induction. When the current passing through the main coil changes, it will cause electromagnetic induction on the secondary coil, thereby generating an output signal. The size of the output signal is related to the ratio of the number of turns between the main and secondary coils. The main function of the transformer is to reduce the measurement range of current and voltage to make it suitable for use in instruments or protection devices, and the anti-theft current transformer is a device used to detect electricity theft in the power grid. It monitors the changes in current to identify whether there is illegal energy consumption, thereby helping power departments or users to discover and prevent the theft of electricity. This device plays an important role in the power system, which can improve the security and efficiency of the power grid and reduce the waste and loss of power resources.
[0003] The prior art has the following problems:
[0004] 1. Most of the existing anti-theft structures of anti-theft current transformers are equipped with external protective covers to protect the wiring terminals to prevent electricity theft. The protective covers are generally fixed with bolts, screws and other structures, and can be quickly disassembled with tools such as screwdrivers, which greatly reduces safety;
[0005] 2. The external shell of the existing anti-theft current transformer is generally a relatively simple structure. It is easy to deform when it is dropped or collides with external objects during transportation, affecting the internal iron core. The pressure resistance of the current anti-theft current transformer can be further improved. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model provides an anti-theft current transformer, which solves the problem that most of the existing anti-theft structures set up protective covers on the outside to protect the wiring terminals to prevent electricity theft. The protective covers are generally fixed with bolts, screws and other structures, and can be quickly disassembled by tools such as screwdrivers, which greatly reduces the safety. The external shell is generally a relatively simple structure, which is easily deformed when it is dropped or collides with external objects during transportation, affecting the internal iron core. The compressive resistance effect of the current anti-theft current transformer can be further improved.
[0007] To achieve the above object, the utility model provides the following technical solution: an anti-theft current transformer, comprising a main body, a connector is provided at the bottom of the main body, a mounting plate is provided at the bottom of the connector, a primary busbar through-hole is formed in the middle of the main body, and a nameplate is provided at the top of the main body;
[0008] The main body comprises a shell, an iron core and an iron core cover, and an iron core cover is arranged outside the iron core;
[0009] The shell further comprises an inner cavity, a pressure-resistant component and a stable connecting piece, wherein the inner cavity is provided with a pressure-resistant component and the pressure-resistant component is provided with a stable connecting piece;
[0010] The connector includes a secondary terminal, a cover, a through-hole, a fixing ear and a slot. The cover is provided with a through-hole, the inner side of the cover is provided with a slot, and one side of the cover is provided with a fixing ear.
[0011] As a preferred technical solution of the utility model: the pressure-resistant components are specifically circular in shape, there are several groups of the pressure-resistant components and they are fixedly installed in the inner cavity, and the stable connecting parts penetrate the pressure-resistant components in the same row and are fixedly connected to the pressure-resistant components.
[0012] As a preferred technical solution of the utility model: the iron core is fixedly installed in the shell and adapted to the inside of the shell, and the iron core cover is fixedly covered on the iron core.
[0013] As a preferred technical solution of the utility model: the connecting piece is fixedly installed at the bottom of the main body, the mounting plate is fixedly installed at the bottom of the connecting piece, and the mounting plate is provided with threaded holes in four groups.
[0014] As a preferred technical solution of the utility model: the cover and the connector are hinged and adapted to each other, and the through openings and the secondary wiring terminals are both in two groups and are arranged corresponding to each other.
[0015] As a preferred technical solution of the utility model: the slot corresponds to a secondary wiring terminal, and the secondary wiring terminal is fixedly mounted on the connector and connected to the iron core through a wire.
[0016] As a preferred technical solution of the utility model: fixing ears are fixed on the outer sides of the cover and the connector, and a through hole is opened in the middle of the fixing ears.
[0017] Compared with the prior art, the utility model provides an anti-theft current transformer, which has the following beneficial effects:
[0018] 1. The anti-theft current transformer is provided with a connector, a secondary terminal, a cover, a through-hole, a fixing ear, and a slot. The secondary wire passes through the through-hole, the cover is turned outward, the secondary wire is connected to the corresponding secondary terminal, and an anti-theft lock of an appropriate size is passed through the cover and two sets of fixing ears on the connector to lock the cover to achieve an anti-theft effect. The cover is closed without bolts and other components, and the cover cannot be opened and disassembled by electricity thieves, thereby improving the safety of anti-theft electricity.
[0019] 2. This anti-theft current transformer is provided with an outer shell, an inner cavity, a pressure-resistant component, and a stable connector. The impact of external force will affect the pressure-resistant component in the inner cavity. The pressure-resistant component is circular and has good stability, which avoids deformation of the outer shell, ensures that the internal iron core is not affected, and improves the overall pressure resistance of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the overall appearance structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the slotting of the utility model;
[0023] Figure 4 This is a schematic diagram of the shell structure of the utility model.
[0024] In the figure: 1. Main body; 101. Shell; 1011. Inner cavity; 1012. Pressure-resistant component; 1013. Stable connector; 102. Iron core; 103. Iron core cover; 2. Connector; 201. Secondary terminal; 202. Cover; 203. Through-hole; 204. Fixing ear; 205. Slot; 3. Mounting plate; 4. Primary busbar through-hole; 5. Nameplate. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0026] See also Figure 1-4 In this embodiment: an anti-theft current transformer includes a main body 1, a connector 2 is provided at the bottom of the main body 1, a mounting plate 3 is provided at the bottom of the connector 2, the mounting plate 3 is used to facilitate the installation of the entire transformer, a primary busbar through-hole 4 is formed in the middle of the main body 1, and a nameplate 5 is provided on the top of the main body 1, and basic information of the transformer can be marked on the nameplate 5;
[0027] The main body 1 includes a shell 101, an iron core 102 and an iron core cover 103, and the iron core cover 103 is arranged outside the iron core 102;
[0028] The housing 101 further includes an inner cavity 1011, a pressure-resistant component 1012 and a stable connector 1013. The inner cavity 1011 is provided with the pressure-resistant component 1012, and the stable connector 1013 is provided on the pressure-resistant component 1012. The inner cavity 1011 can facilitate the installation of the pressure-resistant component 1012.
[0029] The connector 2 includes a secondary terminal 201, a cover 202, a through opening 203, a fixing ear 204 and a slot 205. The cover 202 is provided with a through opening 203, the inner side of the cover 202 is provided with a slot 205, and a fixing ear 204 is provided on one side of the cover 202. The slot 205 can provide sufficient placement space for the secondary terminal 201.
[0030] In this embodiment, the pressure-resistant components 1012 are specifically circular in shape. There are several groups of pressure-resistant components 1012 and they are fixedly installed in the inner cavity 1011. The stabilizing connector 1013 runs through the pressure-resistant components 1012 in the same row and is fixedly connected to the pressure-resistant components 1012. The pressure-resistant effect of the outer shell 101 can be improved by the pressure-resistant components 1012, and the pressure-resistant components 1012 are made more stable by the stabilizing connector 1013. The iron core 102 is fixedly installed in the outer shell 101 and is adapted to the inside of the outer shell 101. The iron core cover 103 is fixedly covered on the iron core 102. The connector 2 is fixedly installed at the bottom of the main body 1, and the mounting plate 3 is fixedly installed. Installed at the bottom of the connector 2, the mounting plate 3 is provided with threaded holes, and there are four groups in total; the cover 202 and the connector 2 are hinged and adapted to each other, the through-holes 203 and the secondary wiring terminals 201 are both in two groups and are arranged corresponding to each other, and the secondary wiring terminals 201 can be hidden by the cover 202; the slots 205 correspond to the secondary wiring terminals 201, and the secondary wiring terminals 201 are fixedly installed on the connector 2 and connected to the iron core 102 through wires; the cover 202 and the outer side of the connector 2 are fixed with fixing ears 204, and the middle part of the fixing ears 204 is provided with a through hole, and the cover 202 can be stabilized on the connector 2 through the fixing ears 204.
[0031] The working principle and use process of the utility model: in actual use, the main body 1 is installed in a suitable position through the mounting plate 3 through the corresponding adapted bolts, and the corresponding primary conductive rod is passed through the primary busbar through-hole 4, and the secondary wire to be connected is passed through the corresponding through-hole 203, and then the cover 202 is turned outward to expose the secondary wiring terminal 201, and the secondary wire is connected to the corresponding secondary wiring terminal 201. After completion, the cover 202 is reset, and the anti-theft lock of the adapted size is passed through the cover 202 and the two sets of fixing ears 204 on the connector 2, The cover 202 can be locked to achieve the anti-theft effect without affecting normal use. The cover 202 is closed without bolts or other components, and the thief cannot open and disassemble the cover 202, thereby improving the safety of anti-theft. During the production, transportation and installation of the transformer, if it falls or collides with the external shell 101, the impact of external force will affect the pressure-resistant component 1012 in the inner cavity 1011. The pressure-resistant component 1012 is circular and has good stability, which avoids deformation of the shell 101, ensures that the internal iron core 102 is not affected, and improves the overall pressure resistance of the transformer.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An anti-theft current transformer, comprising a main body (1), a connecting piece (2) being arranged at the bottom of the main body (1), and a mounting plate (3) being arranged at the bottom of the connecting piece (2), characterized in that: A primary busbar through hole (4) is formed in the middle of the main body (1), and a nameplate (5) is arranged on the top of the main body (1); The main body (1) comprises a shell (101), an iron core (102) and an iron core cover (103), and the iron core cover (103) is arranged outside the iron core (102); The housing (101) further comprises an inner cavity (1011), a pressure-resistant component (1012) and a stabilizing connector (1013); the inner cavity (1011) is provided with the pressure-resistant component (1012), and the stabilizing connector (1013) is provided on the pressure-resistant component (1012); The connector (2) comprises a secondary terminal (201), a cover (202), a through-hole (203), a fixing ear (204) and a slot (205); the cover (202) is provided with a through-hole (203), the inner side of the cover (202) is provided with a slot (205), and one side of the cover (202) is provided with a fixing ear (204).
2. The anti-theft current transformer according to claim 1, characterized in that: The anti-pressure components (1012) are specifically circular in shape. The anti-pressure components (1012) have a total of several groups and are fixedly installed in the inner cavity (1011). The stable connecting piece (1013) passes through the anti-pressure components (1012) in the same row and is fixedly connected to the anti-pressure components (1012).
3. The anti-theft current transformer according to claim 1, characterized in that: The iron core (102) is fixedly installed in the outer shell (101) and is adapted to the interior of the outer shell (101), and the iron core cover (103) is fixedly covered on the iron core (102).
4. The anti-theft current transformer according to claim 1, characterized in that: The connecting piece (2) is fixedly mounted on the bottom of the main body (1), and the mounting plate (3) is fixedly mounted on the bottom of the connecting piece (2). The mounting plate (3) is provided with four groups of threaded holes.
5. The anti-theft current transformer according to claim 1, characterized in that: The sealing cover (202) and the connecting piece (2) are hinged and adapted to each other, and the through openings (203) and the secondary wiring terminals (201) are both in two groups and are arranged corresponding to each other.
6. The anti-theft current transformer according to claim 1, characterized in that: The slot (205) corresponds to a secondary wiring terminal (201), and the secondary wiring terminal (201) is fixedly mounted on the connector (2) and connected to the iron core (102) via a wire.
7. The anti-theft current transformer according to claim 1, characterized in that: The outer sides of the sealing cover (202) and the connecting piece (2) are both fixed with fixing ears (204), and a through hole is formed in the middle of the fixing ears (204).