Current transformer

Abstract

The utility model relates to the technical field of electric power protection equipment, in particular to a current transformer. According to the technical scheme, the current transformer comprises a current transformer body and further comprises an access hole formed in the current transformer body, and a plurality of clamping holes distributed in a circumferential array mode are formed in the access hole; the mounting baffle is attached to one face of the current transformer body to block the access hole, and a rotating mechanism which enables the mounting baffle to be disassembled and assembled in the access hole of the current transformer body after being manually rotated is arranged on the mounting baffle. Through cooperation of the access hole, the mounting baffle, the clamping hole, the rotating mechanism, the clamping block mechanism, the prompting mechanism and other structures, the mounting baffle does not involve dismounting screws, and the possibility that the screws are lost or cannot be found is eliminated. Meanwhile, the operation of dismounting and mounting the baffle is more visual and simpler, complicated tools are not needed, dismounting and mounting can be quickly completed, time is saved, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power protection equipment, especially relates to a current transformer. BACKGROUND

[0002] The circuit breaker is an automatic switch device for protecting the circuit, and the main function is to monitor and control the current to prevent the circuit overload and short circuit fault. The current transformer is a device for measuring alternating current. Its main function is to convert large current into smaller proportional current for measurement and monitoring. The circuit breaker uses the current transformer mainly to improve the safety and accuracy of current measurement. When the internal parts of the traditional current transformer need to be checked, it is usually necessary to use tools to disassemble the screws one by one, which is very troublesome during disassembly. At the same time, due to the small size of the screws, they are easy to slide when manually taken, and the screws that have fallen off cannot be found by the naked eye, which will affect the subsequent reassembly. SUMMARY

[0003] The utility model aims at the problem that when the internal parts of the traditional current transformer need to be checked, it is usually necessary to use tools to disassemble the screws one by one, which is very troublesome during disassembly. At the same time, due to the small size of the screws, they are easy to slide when manually taken, and the screws that have fallen off cannot be found by the naked eye, which will affect the subsequent reassembly. A current transformer is proposed.

[0004] The technical scheme of the utility model: a current transformer, including current transformer body, still include: the access in the current transformer body on the overhaul mouth, the overhaul mouth is in the access of multiple circle array distribution's clamping hole;Install the baffle, stick in the current transformer body one side will the overhaul mouth plug, install the baffle on being equipped with the rotation mechanism that makes install the baffle in the current transformer body overhaul mouth disassembly through manual rotation after on;Fixedly install in install the baffle on multiple circle array distribution's support seat, the inside of support seat is equipped with the clamping block mechanism that links to each other with the rotation mechanism.

[0005] Optionally, the rotation mechanism includes a driving ring movably connected with the installation baffle, a plurality of connection blocks are fixedly connected to the driving ring in a circumferential array, one end of each connection block away from the driving ring is fixedly connected with a rotating ring, a pair of protrusions are fixedly connected to the rotating ring, and a prompt mechanism for reminding a user to turn on or off the rotation mechanism is arranged on the rotating ring.

[0006] Optionally, the prompt mechanism includes a first arrow fixedly connected to the rotating ring, and an opening indicating block is arranged on one end of the first arrow on the outer wall of the rotating ring.

[0007] Optionally, the clamping block mechanism comprises a sliding block slidingly connected to one end of the support base, one end of the sliding block is provided with an arc-shaped end which is automatically retracted into the support base after being clamped into the clamping hole, the inside of the support base is provided with a reset spring, one end of the reset spring is fixedly connected to the inner wall of the support base, the other end of the reset spring is fixedly connected to the sliding block, one end of the sliding block away from the arc-shaped end is fixedly connected with a connecting rope which is movably penetrated through the support base, and the other end of the connecting rope away from the sliding block is fixedly connected with the driving ring.

[0008] Optionally, the current transformer body is fixedly connected with an insertion block close to the outer wall of the access hole, and the mounting baffle is provided with an insertion slot for positioning after clamping the insertion block.

[0009] Optionally, the mounting baffle is fixedly connected with a plurality of convex strips arranged in a circumferential array on one side close to the rotating ring.

[0010] Optionally, the mounting baffle is fixedly connected with a plurality of clamping ears for blocking corresponding clamping holes.

[0011] In summary, the present application has at least one of the following beneficial technical effects:

[0012] The utility model discloses a cooperation of access hole, mounting baffle, clamping hole, rotating mechanism, clamping block mechanism and prompting mechanism, and the mounting baffle does not involve disassembling screw, so that the possibility of losing or not finding screw is eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure schematic diagram of the current transformer is given;

[0014] Figure 2 For Figure 1 The enlarged schematic diagram of A in the figure;

[0015] Figure 3 For Figure 1 The split structure schematic diagram of the figure;

[0016] Figure 4 For Figure 3 The partial structure schematic diagram of the figure;

[0017] Figure 5 For Figure 4 The enlarged schematic diagram of B in the figure.

[0018] Label: 1, current transformer body; 11, card hole; 12, plug block; 2, installation baffle; 21, convex strip; 22, card ear; 23, insertion slot; 3, rotating ring; 31, convex block; 4, driving ring; 41, connecting block; 5, support seat; 51, sliding block; 52, arc-shaped end; 53, reset spring; 54, connecting rope; 6, first arrow; 61, opening indication block. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0020] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0021] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] It should be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0024] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0025] Embodiment

[0026] As Figures 1 to 5 The utility model discloses a current transformer, including current transformer body 1, the outer wall of current transformer body 1 close to the access hole is fixedly connected with the plug block 12, installs the baffle 2 and is set up the slot 23 of positioning of the plug block 12 of being stuck in on the baffle 2, still include: the access hole being set up on current transformer body 1, the access hole is set up with multiple circular array distribution's clamping hole 11;Install the baffle 2, stick in on the one side of current transformer body 1 and block up the access hole, the one side of installation baffle 2 close to rotating ring 3 is fixedly connected with multiple circular array distribution's convex strip 21, and the effect of convex strip 21 is when installing installation baffle 2, increase the friction between hand and installation baffle 2, and increase the force point for hand, facilitate the installation and disassembly of installation baffle 2. The baffle 2 is fixedly connected with multiple clamping ears 22 for blocking corresponding clamping hole 11 on installation baffle 2, and the effect of clamping ear 22 is that the clamping hole 11 in the access hole is not directly exposed, thereby increasing the appearance of current transformer body 1. The rotating mechanism that is set up on installation baffle 2 is through manual rotation and makes installation baffle 2 in the access hole of current transformer body 1 disassembly and assembly;Fixedly install the support seat 5 of multiple circular array distribution on installation baffle 2, and the inside of support seat 5 is equipped with the clamping block mechanism of linkage switch of rotating mechanism.

[0027] Further, the rotating mechanism includes a driving ring 4 movably sleeved with the installation baffle 2, a plurality of connection blocks 41 are fixedly connected to the driving ring 4, one end of the connection blocks 41 away from the driving ring 4 is fixedly connected with the rotating ring 3, a pair of protrusions 31 are fixedly connected to the rotating ring 3, the rotating ring 3 is provided with a prompting mechanism for reminding the user to turn on the rotating mechanism, and the prompting mechanism can remind the user to operate the rotating ring 3 correctly and reduce the possibility of errors.

[0028] The prompting mechanism includes a first arrow 6 fixedly connected to the rotating ring 3, and an opening indication block 61 is arranged on one end of the rotating ring 3 outside the first arrow 6.

[0029] Furthermore, the locking mechanism includes a sliding block 51 slidably connected to one end of the support base 5. Under normal conditions, the sliding block 51 is constantly protruding from the support base 5 and engaging the locking hole 11 due to the elastic thrust of a return spring 53. One end of the sliding block 51 is provided with an arcuate end 52 that automatically retracts into the support base 5 after engaging the locking hole 11. When the arcuate end 52 abuts against the locking hole 11, it automatically retracts the sliding block 51 into the support base 5, ensuring that the installation of the baffle 2 is not obstructed. A return spring 53 is provided within the support base 5. The function of the return spring 53 is to rotate the rotating mechanism and the locking mechanism back to their original positions when unconstrained, allowing for reuse. One end of the return spring 53 is fixedly connected to the inner wall of the support base 5, and the other end of the return spring 53 is fixedly connected to the sliding block 51. The end of the sliding block 51 away from the arcuate end 52 is fixedly connected to a connecting rope 54 that runs through the support base 5. The end of the connecting rope 54 away from the sliding block 51 is fixedly connected to the driving ring 4.

[0030] In this embodiment, when a current transformer body of a current transformer is required, such as Figure 1 As shown, simply rotate the rotating ring 3 according to the first arrow 6 and the opening indicator block 61 on the rotating ring 3. The rotating ring 3, through the multiple connecting blocks 41, drives the driving ring 4 to rotate, which in turn drives one end of the multiple connecting ropes 54 to rotate. The other ends of the connecting ropes 54 pull the corresponding sliding blocks 51 back into the support base 5, allowing the mounting baffle 2 to be removed from the access opening of the current transformer body 1. This is simple and easy to operate. To install the mounting baffle 2 in the access opening of the current transformer body 1, simply engage the slot 23 on the mounting baffle 2 with the insert block 12 on the current transformer body 1 and rotate the rotating ring 3 again, causing the multiple sliding blocks 51 to retract into the support base 5. Once one side of the mounting baffle 2 is firmly against the current transformer body 1, the rotating ring 3 can be released. At this point, the sliding blocks 51, due to the elastic force of the corresponding return springs 53, engage the corresponding retaining holes 11, and simultaneously drive the corresponding connecting ropes 54 back to their remote positions for the next use.

[0031] The preferred embodiments of the present invention described above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A current transformer, comprising a current transformer body (1), characterized in that: Also includes: An inspection port is provided on the current transformer body (1), wherein a plurality of latch holes (11) distributed in a circumferential array are provided in the inspection port; An installation baffle (2) is attached to one side of the current transformer body (1) to block the inspection port, and a rotating mechanism is provided on the installation baffle (2) for manually rotating the installation baffle (2) to allow the installation baffle (2) to be installed and removed in the inspection port of the current transformer body (1); A plurality of support seats (5) distributed in a circumferential array are fixedly mounted on the mounting baffle (2), and a clamping block mechanism that is linked to a rotation mechanism for switching is provided inside the support seat (5).

2. A current transformer according to claim 1, characterized in that: The rotating mechanism comprises a driving ring (4) movably sleeved with the mounting baffle (2); a plurality of connecting blocks (41) distributed in a circumferential array are fixedly connected to the driving ring (4); an end of the connecting block (41) away from the driving ring (4) is fixedly connected to a rotating ring (3); a pair of protrusions (31) are fixedly connected to the rotating ring (3); and a prompting mechanism for reminding a user to turn on or off the rotating mechanism is provided on the rotating ring (3).

3. A current transformer according to claim 2, characterized in that: The prompt mechanism comprises a first arrow (6) fixedly connected to the rotating ring (3); an opening indicating block (61) is provided on the outer wall of the rotating ring (3) at one end of the first arrow (6).

4. A current transformer according to claim 1, characterized in that: The clamping block mechanism includes a sliding block (51) slidably connected to one end of the support seat (5), one end of the sliding block (51) is provided with an arc-shaped end (52) which is automatically retracted into the support seat (5) after being clamped into the clamping hole (11), a return spring (53) is provided inside the support seat (5), one end of the return spring (53) is fixedly connected to the inner wall of the support seat (5), and the other end of the return spring (53) is fixedly connected to the sliding block (51), and the end of the sliding block (51) away from the arc-shaped end (52) is fixedly connected to a connecting rope (54) that movably passes through the support seat (5), and the end of the connecting rope (54) away from the sliding block (51) is fixedly connected to the driving ring (4).

5. A current transformer according to claim 1, characterized in that: An insert block (12) is fixedly connected to the outer wall of the current transformer body (1) near the inspection port, and a slot (23) for clamping the insert block (12) for positioning is provided on the mounting baffle (2).

6. A current transformer according to claim 2, characterized in that: A plurality of convex strips (21) distributed in a circumferential array are fixedly connected to a surface of the mounting baffle (2) close to the rotating ring (3).

7. A current transformer according to claim 1, characterized in that: A plurality of latches (22) for blocking corresponding latch holes (11) are fixedly connected to the mounting baffle (2).

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