Busbar type current transformer

Abstract

The utility model belongs to the technical field of power system monitoring, and discloses a busbar type current transformer which comprises a transformer body, a busbar groove used for inserting a busbar is formed in the transformer body, a connecting piece used for being connected with a wire is arranged at the top of the transformer body, and the wire is connected with the busbar groove. Side plates are arranged on the two sides, close to a busbar groove, of the mutual inductor body, clamping plates are arranged on the sides, facing a busbar, of the side plates, springs are fixedly connected between the side plates and the clamping plates, a guide groove is formed in the side, away from the busbar groove, of each clamping plate, and the guide groove inclines from the side close to the busbar to the other side to form a slope. Through the arrangement of the side plates, the springs and the clamping plates, when the busbar is inserted into the busbar groove, the side plates support the springs, and the springs extrude and push the clamping plates, so that the clamping plates abut against the busbar, the busbar is fixed, a plurality of fixing structures do not need to be screwed when the busbar is fixed by the device, the busbar connecting difficulty is relatively low, and the connecting efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of power system monitoring, and in particular relates to a busbar type current transformer. Background Art

[0002] In the power system, the busbar is a key component for the transmission and distribution of electric energy, and its current monitoring is crucial for the safe and stable operation of the power system. Although the traditional current transformer can meet certain measurement requirements, it has certain deficiencies during installation. For example, in the Chinese patent with the announcement number "CN 218768953 U", a high-temperature resistant current transformer for new energy power generation is disclosed, including a main body, a plurality of mounting components, a first primary busbar and a second primary busbar. The middle part of the main body is hollowed out to form a window; the main body includes a shell with an annular accommodating cavity, a winding body and a plurality of body fixing blocks. The accommodating cavity surrounds the outer ring of the window, the winding body is arranged in the accommodating cavity, and the plurality of body fixing blocks are respectively fixedly connected to the four corners of the accommodating cavity. The inner wall of the winding body is fixedly connected to the other end of the body fixing block, and a gap is formed between the winding body and the side of the accommodating cavity close to the window; the first primary busbar is horizontally arranged at At the bottom of the empty window, the second primary busbar is horizontally arranged at the upper part of the inner cavity of the empty window; the installation component includes a fastening screw, an I-shaped strip and a gasket, the I-shaped strip passes through the empty window horizontally, the fastening screw vertically passes through both ends of the I-shaped strip and is threadedly connected to the I-shaped strip, the gasket is arranged at the bottom of the fastening screw, and the fastening screw is tightened to press the gasket against the upper surface of the second primary busbar. Although the device can connect the busbar, the device needs to screw multiple fixing structures, so the difficulty of connecting the busbar is relatively high, the connection efficiency is low, and the wiring structure used to connect the wires of the device cannot be replaced. After damage, the device can only be replaced as a whole. Utility Model Content

[0003] The purpose of the present utility model is to provide a busbar type current transformer to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a busbar type current transformer, comprising a transformer body, a busbar slot for inserting a busbar is provided on the transformer body, and a connector for connecting a wire is provided on the top of the transformer body, side panels are provided on both sides of the transformer body close to the busbar slot, a splint is provided on the side of the side panel facing the busbar, and a spring is fixedly connected between the side panel and the splint.

[0005] Preferably, a guide groove is formed on the side of the clamping plate away from the busbar slot, and the guide groove is inclined from the side close to the busbar to the other side to form a slope.

[0006] Preferably, the connector further includes a wiring terminal, and the wiring terminal is fixedly connected to the top of the transformer body.

[0007] Preferably, the connector also includes a top shell, the top shell is recessed to form a connecting groove for inserting the wire, and the bottom of the top shell is recessed to form a socket, a limiting screw is screwed on the top shell, the free end of the limiting screw extends to the inside of the connecting groove, the socket matches the wiring terminal, and the inner bottom end of the connecting groove is fixedly connected to the electrode plate.

[0008] Preferably, both symmetrical sides of the top shell are recessed to form a slot;

[0009] Two limiting rods are symmetrically fixedly connected to the top of the mutual inductor body, the top shell is located between the two limiting rods, and the two limiting rods have opposite sides formed with limiting protrusions matching the slots.

[0010] Preferably, a rubber plate is bonded to one end of the limiting screw facing the electrode plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) The utility model provides side plates, springs and clamping plates. When the busbar is inserted into the busbar slot, the side plates support the springs, and the springs squeeze and push the clamping plates, so that the clamping plates contact the busbar, thereby fixing the busbar. When the device fixes the busbar, there is no need to twist multiple fixing structures. Therefore, the difficulty of connecting the busbar is relatively low and the connection efficiency is high.

[0013] (2) The utility model provides a top shell, which is placed above the transformer body, so that the wiring terminals on the transformer body are inserted into the jacks at the bottom of the top shell. When the electrode plate needs to be replaced, the top shell only needs to be pulled to separate the top shell from the wiring terminals, and the electrode plate can be replaced. The wiring structure of the device used to connect the wires can be replaced, and there is no need to replace the entire device after damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the present invention with the side panels and connectors removed;

[0016] Figure 3 A three-dimensional diagram of the side panel of the present invention;

[0017] Figure 4 This is one of the three-dimensional views of the connector of the present invention;

[0018] Figure 5 This is a front view of the connector of the utility model;

[0019] Figure 6 This is the second three-dimensional diagram of the connector of the present invention;

[0020] In the figure: 1. Transformer body; 2. Busbar slot; 3. Connector; 31. Top shell; 32. Limit screw; 33. Slot; 34. Connecting slot; 35. Electrode plate; 36. Jack; 4. Limit rod; 5. Side plate; 6. Spring; 7. Clamp; 8. Guide groove; 9. Terminal; 10. Limit protrusion. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-6 As shown, the utility model provides the following technical solutions:

[0023] A busbar-type current transformer includes a transformer body 1, a busbar slot 2 for inserting a busbar is provided on the transformer body 1, and a connector 3 for connecting a wire is provided on the top of the transformer body 1. Side plates 5 are provided on both sides of the transformer body 1 close to the busbar slot 2, a clamping plate 7 is provided on the side of the side plate 5 facing the busbar, and a spring 6 is fixedly connected between the side plate 5 and the clamping plate 7.

[0024] Through the above technical solution, when personnel need to use the device, the transformer body 1 is fixed at the position required by the personnel, and then the busbar is inserted into the busbar slot 2, and then the wire is connected to the connector 3. When the personnel inserts the busbar into the busbar slot 2, the side plate 5 supports the spring 6, and the spring 6 squeezes and pushes the clamping plate 7, so that the clamping plate 7 contacts the busbar, thereby completing the busbar fixation, and the transformer body 1 works to monitor the line.

[0025] When personnel need to insert the busbar, in order to facilitate the insertion of the busbar, such as Figure 1 and Figure 3 As shown, a guide groove 8 is formed on the side of the clamping plate 7 away from the busbar slot 2, and the guide groove 8 is inclined from the side close to the busbar to the other side to form a slope.

[0026] In this embodiment, when a person inserts the busbar, the cooperation between the guide groove 8 and the slope allows the busbar to be easily inserted into one side of the clamping plate 7 .

[0027] Specifically, in one embodiment, regarding the above-mentioned connecting member 3, as Figure 1 、 Figure 4-Figure 6 As shown, the connector 3 further includes a wiring terminal 9 , which is fixedly connected to the top of the transformer body 1 .

[0028] In this embodiment, when a person needs to connect a wire, the wire is connected to the connection terminal 9 , thereby connecting the wire to the transformer body 1 .

[0029] In addition, in the present invention, Figure 4-Figure 6 As shown, the technical solution of the connector 3 is further refined. The connector 3 also includes a top shell 31. The top shell 31 is recessed to form a connecting groove 34 for inserting the wire, and the bottom of the top shell 31 is recessed to form a socket 36. A limiting screw 32 is screwed on the top shell 31, and the free end of the limiting screw 32 extends to the inside of the connecting groove 34. The socket 36 matches the terminal 9, and the inner bottom end of the connecting groove 34 is fixedly connected to the electrode plate 35.

[0030] In this embodiment, before using the device, the person places the top shell 31 above the transformer body 1, inserts the terminal 9 on the transformer body 1 into the socket 36 inside the top shell 31, and then allows the terminal 9 to contact the electrode plate 35 inside the connecting groove 34, and then inserts the wire into the connecting groove 34 on the top shell 31, rotates the limit screw 32, and moves one end of the limit screw 32 to the inside of the connecting groove 34 until the limit screw 32 contacts the wire, thereby allowing the wire to connect to the electrode plate 35.

[0031] After the top shell 31 is placed, in order to make the top shell 31 more secure, Figure 1 、 Figure 4-Figure 6 As shown, both symmetrical sides of the top shell 31 are recessed to form a card slot 33;

[0032] Two limiting rods 4 are symmetrically fixedly connected to the top of the transformer body 1 , the top shell 31 is located between the two limiting rods 4 , and the two limiting rods 4 have limiting protrusions 10 formed on opposite sides thereof that match the slots 33 .

[0033] In this embodiment, when the top shell 31 is placed above the transformer body 1, the limiting protrusion 10 on the limiting rod 4 is engaged with the slot 33 on the top shell 31, so that the top shell 31 is tightened after installation. When personnel need to replace the electrode plate 35, they only need to pull the limiting rod 4 to separate the limiting rod 4 and the limiting protrusion 10 from the slot 33, and then the top shell 31 can be removed and the top shell 31 and the electrode plate 35 can be replaced.

[0034] When the limiting screw 32 contacts the wire, in order to make the wire more secure after installation, Figure 5 As shown, a rubber plate is bonded to one end of the limiting screw 32 facing the electrode plate 35 .

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A busbar type current transformer, characterized in that: The invention comprises a transformer body (1), wherein a busbar slot (2) for inserting a busbar is provided on the transformer body (1), and a connector (3) for connecting a wire is provided on the top of the transformer body (1), and side plates (5) are provided on both sides of the transformer body (1) close to the busbar slot (2), and a clamping plate (7) is provided on the side of the side plate (5) facing the busbar, and a spring (6) is fixedly connected between the side plate (5) and the clamping plate (7).

2. A busbar type current transformer according to claim 1, characterized in that: A guide groove (8) is formed on the side of the clamping plate (7) away from the busbar slot (2), and the guide groove (8) is inclined from the side close to the busbar to the other side to form a slope.

3. A busbar type current transformer according to claim 1 or 2, characterized in that: The connecting member (3) further comprises a wiring terminal (9), and the wiring terminal (9) is fixedly connected to the top of the transformer body (1).

4. A busbar type current transformer according to claim 3, characterized in that: The connector (3) further comprises a top shell (31), wherein the top shell (31) is recessed to form a connection groove (34) for inserting a wire, and the bottom of the top shell (31) is recessed to form a socket (36), a limiting screw (32) is screwed on the top shell (31), and the free end of the limiting screw (32) extends to the inside of the connection groove (34), the socket (36) matches the wiring terminal (9), and the bottom end of the connection groove (34) is fixedly connected to an electrode plate (35).

5. A busbar type current transformer according to claim 4, characterized in that: Both symmetrical sides of the top shell (31) are recessed to form a card slot (33); Two limiting rods (4) are symmetrically fixedly connected to the top of the mutual inductor body (1), the top shell (31) is located between the two limiting rods (4), and the two limiting rods (4) have opposite sides formed with limiting protrusions (10) that match the slots (33).

6. The busbar type current transformer according to claim 4, characterized in that: A rubber plate is bonded to one end of the limiting screw (32) facing the electrode plate (35).

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