Integrated current transformer

Abstract

The utility model relates to the technical field of current transformers, in particular to an integrated current transformer which comprises an iron core, a mounting seat is fixedly connected to the lower end of the iron core, a groove is formed in the middle of the lower end of the mounting seat, a wiring terminal is fixedly connected to the side face of the mounting seat, a wire is electrically connected to the wiring terminal, and the wire is attached to the side wall of the mounting seat. An extrusion assembly used for locking the wire is rotatably installed on the side wall of the installation base, a bottom plate used for covering the groove is installed at the lower end of the installation base in a clamped mode, and the end of the wire penetrates through the bottom plate; the bottom of the mounting seat is provided with the groove for accommodating the wire, the wire passes through the extrusion assembly and the groove and then passes through the bottom plate for wiring, and the extrusion assembly and the groove perform dual protection on the wire, so that the wire is not easy to pull and loosen, and the wire is not easy to loosen from the wiring terminal.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of current transformers, in particular to an integrated current transformer. BACKGROUND

[0002] The principle of the current transformer is generated according to the electromagnetic induction principle, and the inside is composed of a closed core and a winding, the shell of the integrated current transformer is cast into shape, and the high integration of the magnetic circuit and the insulation system is realized.

[0003] The existing integrated current transformer, such as the one proposed in patent application number "CN90221338.5", is composed of a core, a winding, and a shell, and the primary winding is connected to the secondary winding, and the primary winding lead is connected to the secondary winding lead, and the connection piece is fixed on the shell, which changes the situation that the small current transformer below 150A needs to be threaded through multiple turns during installation, and is convenient for users.

[0004] However, the existing technology has defects, the side of the current transformer is connected through the wiring terminal, when the transformer is overhauled and installed, the line is easy to be pulled off from the wiring terminal, which affects the electrical stability of the transformer, therefore, an integrated current transformer is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an integrated current transformer to solve the problems in the above background technology.

[0006] The purpose of the utility model can be realized through the following technical scheme:

[0007] An integrated current transformer, comprising a core, the lower end of the core is fixedly connected with a mounting seat, a groove is formed in the middle of the lower end of the mounting seat, a wiring terminal is fixedly connected to the side of the mounting seat, a wire is electrically connected to the wiring terminal, the wire is attached to the side wall of the mounting seat, and the end part enters the inside of the groove, a pressing assembly for locking the wire is rotatably installed on the side wall of the mounting seat, a bottom plate for covering the groove is connected and installed at the lower end of the mounting seat, and the end part of the wire penetrates through the bottom plate.

[0008] Preferably, a slot is formed on one side of the groove, the slot is located below the pressing assembly, the wire penetrates through the slot, a winding column is fixedly connected in the groove, the wire is wound on the winding column, a hole is formed in the bottom plate, and the wire penetrates through the hole.

[0009] Preferably, two groups of mounting plates are connected and installed at the lower end of the mounting seat, a plurality of clamping plates are fixedly connected to the lower end of the mounting seat, the plurality of clamping plates are respectively located on both sides of the groove, and the plurality of clamping plates are respectively connected and matched with the two groups of mounting plates.

[0010] Preferably, the two groups of mounting plates are fixedly connected with clamping rails at one end close to the groove, the clamping rails are in abutting fit with the clamping plates, and the bottom plate is clamped and mounted with the two groups of clamping rails at two ends respectively.

[0011] Preferably, the extrusion assembly comprises a pressing plate, one end of the pressing plate is rotatably connected with the side wall of the mounting seat, the other end is clamped and mounted with the side wall of the mounting seat, and the middle part is used for extruding the wire.

[0012] Preferably, the pressing plate is made of rubber material, one end of the pressing plate is fixedly connected with an insertion block, the side wall of the mounting seat is provided with an insertion opening, the insertion block is inserted into the insertion opening, clamping grooves are formed at two sides of the insertion opening, and protrusions are fixedly connected at two sides of the insertion block and clamped and fitted with the clamping grooves.

[0013] The utility model discloses the beneficial effect of:

[0014] The utility model discloses the bottom of mounting seat is provided with the groove for accomodating wire, wire passes through extrusion assembly and groove, and then passes through the bottom plate wire connection, and extrusion assembly and groove double protection to wire, not only make wire difficult to be pulled loose, but also make wire difficult to produce the loosening between wire connection terminal. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings;

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the bottom structure schematic diagram of the utility model mounting seat;

[0018] Figure 3 It is the internal structure schematic diagram of the utility model groove;

[0019] Figure 4 It is the bottom plate mounting structure schematic diagram of the utility model;

[0020] Figure 5 It is the extrusion assembly structure schematic diagram of the utility model;

[0021] The signs in the drawing are as follows:

[0022] 1, iron core;2, mounting seat;3, wire connection terminal;4, clamping plate;5, mounting plate;6, clamping rail;7, bottom plate;8, hole;9, groove;10, winding column;11, wire;12, pressing plate;13, insertion block;14, protrusion;15, slot. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] An integrated current transformer, such as Figures 1-5 As shown, the device includes an iron core 1, with a mounting base 2 fixedly connected to the lower end of the iron core 1. A groove 9 is provided in the middle of the lower end of the mounting base 2. A terminal block 3 is fixedly connected to the side of the mounting base 2, and a wire 11 is electrically connected to the terminal block 3. The wire 11 is attached to the side wall of the mounting base 2, and its end enters the groove 9. A pressing component for locking the wire 11 is rotatably installed on the side wall of the mounting base 2. A base plate 7 for covering the groove 9 is snapped onto the lower end of the mounting base 2, and the end of the wire 11 passes through the base plate 7.

[0025] The wire 11 can be wound into the groove 9 and then covered by the base plate 7, thereby sealing the groove 9.

[0026] By creating a groove 9 at the bottom of the mounting base 2 to accommodate the wire 11, the wire 11 passes through the extrusion assembly and the groove 9, and then through the base plate 7 for wiring. The extrusion assembly presses the wire 11 against the side wall of the mounting base 2, making it difficult for the wire 11 to slide relative to the extrusion assembly. The wire 11 is not easily pulled when it is wound up in the groove 9. The extrusion assembly and the groove 9 provide double protection for the wire 11, making it not only difficult for the wire 11 to be pulled loose, but also making it difficult for the wire 11 to become loose from the terminal 3.

[0027] like Figures 1-3 As shown, a slot 15 is provided through one side of the groove 9. The slot 15 is located below the extrusion assembly. The wire 11 passes through the slot 15. A winding post 10 is fixed in the groove 9. The wire 11 is wound on the winding post 10. A hole 8 is provided on the bottom plate 7. The wire 11 passes through the hole 8.

[0028] The wire 11 enters the groove 9 through the slot 15, is wound around the winding post 10, and then passes through the hole 8 of the base plate 7. The winding and coiling can accommodate longer wires 11 and reduce the possibility of the wire 11 being pulled.

[0029] like Figures 2-3 As shown, two sets of mounting plates 5 are snapped onto the lower end of the mounting base 2, and multiple sets of clamping plates 4 are fixedly connected to the lower end of the mounting base 2. The multiple sets of clamping plates 4 are located on both sides of the groove 9, and the multiple sets of clamping plates 4 are snapped onto and engaged with the two sets of mounting plates 5 respectively.

[0030] Mounting plate 5 is installed on the lower end of mounting base 2 by clamping plate 4. Clamping plate 4 is made of metal and can be bent. When mounting plate 5 is attached to the lower end of mounting base 2, clamping plate 4 is bent to clamp and fix mounting plate 5.

[0031] like Figures 2-4 As shown, each of the two sets of mounting plates 5 is fixedly connected to a rail 6 near the groove 9. The rail 6 abuts against the mounting plate 4, and the two ends of the base plate 7 are respectively connected to the two sets of rails 6 for installation.

[0032] The guide rail 6 prevents the mounting plate 5 from detaching from the guide plate 4. After the two sets of mounting plates 5 are installed, the base plate 7 is installed and placed at the lower end of the groove 9.

[0033] like Figures 1-5 As shown, the extrusion assembly includes a pressure plate 12, one end of which is rotatably connected to the side wall of the mounting base 2, and the other end is snapped into the side wall of the mounting base 2. The middle part is used to extrude the wire 11.

[0034] Rotating the pressure plate 12 facilitates the connection of the wire 11 to the terminal 3. After connection, rotating the pressure plate 12 again causes the pressure plate 12 to press the wire 11 and engage it with the mounting base 2, so that the wire 11 is tightly attached to the side wall of the mounting base 2.

[0035] like Figures 1-5 As shown, the pressure plate 12 is made of rubber. A plug 13 is fixedly connected to one end of the pressure plate 12. The mounting base 2 has an insertion port on its side wall. The plug 13 is inserted into the insertion port. A slot is provided on both sides of the insertion port. A protrusion 14 is fixedly connected to both sides of the plug 13. The protrusion 14 engages with the slot.

[0036] The outer wall of the wire 11 is made of plastic material such as PVC, which has high friction with rubber. When the pressure plate 12 is pressed against the wire 11, the pressure plate 12 and the wire 11 cannot slide. One end of the pressure plate 12 is connected to the mounting base 2 through the insert block 13 and the protrusion 14, and the connection is stable.

[0037] The working principle of the integrated current transformer provided by this utility model is as follows:

[0038] By creating a groove 9 at the bottom of the mounting base 2 to accommodate the wire 11, the wire 11 passes through the extrusion assembly and the groove 9, and then through the base plate 7 for wiring. The extrusion assembly presses the wire 11 against the side wall of the mounting base 2, making it difficult for the wire 11 to slide relative to the extrusion assembly. The wire 11 is not easily pulled when it is wound up in the groove 9. The extrusion assembly and the groove 9 provide double protection for the wire 11, making it not only difficult for the wire 11 to be pulled loose, but also making it difficult for the wire 11 to become loose from the terminal 3.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An integrated current transformer, comprising an iron core (1), characterized in that, The lower end of the iron core (1) is fixedly connected to a mounting base (2). A groove (9) is provided in the middle of the lower end of the mounting base (2). A terminal block (3) is fixedly connected to the side of the mounting base (2). A wire (11) is electrically connected to the terminal block (3). The wire (11) is attached to the side wall of the mounting base (2) and its end enters the groove (9). A pressing component for locking the wire (11) is rotatably installed on the side wall of the mounting base (2). A base plate (7) for covering the groove (9) is snapped onto the lower end of the mounting base (2). The end of the wire (11) passes through the base plate (7).

2. The integrated current transformer according to claim 1, characterized in that, A slot (15) is provided through one side of the groove (9). The slot (15) is located below the extrusion assembly. The wire (11) passes through the slot (15). A winding post (10) is fixedly connected in the groove (9). The wire (11) is wound on the winding post (10). A hole (8) is provided on the bottom plate (7). The wire (11) passes through the hole (8).

3. The integrated current transformer according to claim 1, characterized in that, The mounting base (2) has two sets of mounting plates (5) snapped onto its lower end. The mounting base (2) has multiple sets of clamping plates (4) fixedly connected to its lower end. The multiple sets of clamping plates (4) are located on both sides of the groove (9) and are respectively engaged with the two sets of mounting plates (5).

4. The integrated current transformer according to claim 3, characterized in that, Both sets of mounting plates (5) are fixed with a retaining rail (6) at one end near the groove (9). The retaining rail (6) abuts against the retaining plate (4). The two ends of the base plate (7) are respectively engaged with the two sets of retaining rails (6).

5. An integrated current transformer according to claim 1, characterized in that, The extrusion assembly includes a pressure plate (12), one end of which is rotatably connected to the side wall of the mounting base (2), and the other end is snapped into the side wall of the mounting base (2). The middle part is used to extrude the wire (11).

6. An integrated current transformer according to claim 5, characterized in that, The pressure plate (12) is made of rubber. One end of the pressure plate (12) is fixedly connected to a plug (13). The side wall of the mounting base (2) is provided with a socket. The plug (13) is inserted into the socket. Both sides of the socket are provided with slots. Both sides of the plug (13) are fixedly connected with protrusions (14). The protrusions (14) engage with the slots.

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