Current transformer shell convenient to assemble

Abstract

The utility model discloses a current transformer shell convenient to assemble, which comprises a mounting seat, the lower part of the left end and the lower part of the right end of the mounting seat are respectively and fixedly provided with a fixing plate, the lower inner wall of the mounting seat is provided with three sliding chutes, the upper ends of the three sliding chutes are jointly provided with a base, the upper end of the base is fixedly provided with a current transformer, and the upper end of the current transformer is fixedly provided with a fixing plate. The front end of the current transformer is provided with a mounting cover, and the left ends and the right ends of the current transformer and the mounting cover are jointly provided with a connecting device. According to the current transformer shell convenient to assemble, the pull plate is pulled to retract in the adjusting groove, the pull plate drives the clamping block to retract in the mounting groove, then the base is pushed to the rear inner wall of the mounting base, the clamping groove in the base is aligned with the clamping block, then the pull plate is loosened, at the moment, the clamping spring in the mounting groove rebounds, and the clamping block is clamped in the mounting groove. By means of the clamping mode, bolts are not needed, and therefore the current transformer is convenient to assemble or disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer housing that is convenient for assembly. Background Art

[0002] The principle of a current transformer is based on the principle of electromagnetic induction. A current transformer consists of a closed iron core and windings. Its primary winding has very few turns and is connected in series in the circuit where the current to be measured passes through. Therefore, it often has the full current of the circuit flowing through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit.

[0003] A prior patent (application number 202321812292.X) discloses a current transformer housing that is convenient for assembly, including a housing body and a mounting base plate. At both ends of the upper surface of the mounting base plate, mounting slots are provided. Inside both of the mounting slots, mounting cards that are slidably connected to the corresponding mounting slots are arranged. The mounting cards are fixedly connected to the housing body. On the surfaces of both of the mounting cards, two positioning through slots are provided. On both sides of the mounting base plate, receiving grooves are provided. Inside both sides of the mounting base plate, sliding cavities are provided. Both of the mounting cards are limited and fixedly connected to the mounting base plate through a provided limiting mechanism.

[0004] When the existing current transformer housing is assembled, the docking of the housing is inconvenient, which affects the assembly efficiency of the housing. In addition, most current transformer housings are fixed to the base through multiple bolts, and it is also relatively inconvenient to disassemble them when they need to be replaced and repaired. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a current transformer housing that is convenient for assembly, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A current transformer housing that is convenient for assembly, including a mounting seat. At the lower part of the left end and the lower part of the right end of the mounting seat, fixing plates are fixedly installed. On the lower inner wall of the mounting seat, three sliding grooves are provided. At the upper ends of the three sliding grooves, a base is commonly installed. At the upper end of the base, a current transformer is fixedly installed. At the front end of the current transformer, a mounting cover is installed. At the left end and the right end of the current transformer and the mounting cover, a connecting device is commonly installed.

[0008] Preferably, mounting grooves are formed in the rear portions of the left inner wall and the right inner wall of the mounting base. Adjusting grooves are formed at the upper ends of the two mounting grooves. A set of clamping springs are fixedly installed in each of the two mounting grooves. Corresponding ends of the two sets of clamping springs are fixedly provided with clamping blocks. Pulling plates are fixedly installed at the upper ends of the two clamping blocks. By pulling the pulling plates to retract in the adjusting grooves, the pulling plates drive the clamping blocks to retract in the mounting grooves. Then, the base is pushed against the rear inner wall of the mounting base, so that the card slots on the base are aligned with the clamping blocks. Then, the pulling plates are loosened. At this time, the clamping springs in the mounting grooves rebound, so as to push the clamping blocks into the card slots. By means of clamping, it is not necessary to use bolts to fix the current transformer, thus facilitating the assembly or disassembly of the current transformer.

[0009] Preferably, the connecting device includes a connecting frame and a connecting seat. There are two connecting frames and two connecting seats. Connecting grooves are formed at the front ends of the two connecting seats. Fixing bolts are installed at the opposite ends of the two connecting seats. Connecting plates are fixedly installed at the rear ends of the two connecting seats. The two connecting seats are respectively fixedly installed at the left end and the right end of the mounting cover. The two connecting frames are respectively fixedly installed at the left end and the right end of the current transformer. The mounting cover is inserted into the connecting grooves on the connecting frames on both sides of the current transformer through the connecting plates on the connecting seats on both sides thereof, so that the mounting cover can be quickly docked with the current transformer.

[0010] Preferably, card slots are formed at the left end and the right end of the base. Three sliders are fixedly installed at the lower end of the base.

[0011] Preferably, the pulling plate is located in the adjusting groove, and the upper end surface of the pulling plate extends out of the adjusting groove.

[0012] Preferably, the connecting plate and the connecting groove are of the same size and are corresponding in position front and back.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When the current transformer needs to be installed, first, the mounting cover is inserted into the connecting grooves on the connecting frames on both sides of the current transformer through the connecting plates on the connecting seats on both sides thereof, so that the mounting cover can be quickly docked with the current transformer. Then, the fixing screws are screwed into the connecting frames and the connecting plates, thus completing the installation of the transformer housing.

[0015] 2. After the housing of the current transformer is installed, the base is clamped in three chutes in the mounting seat through three sliders at its lower end. At this time, by pulling the pull plate to retract in the adjustment groove, the pull plate drives the clamping block to retract into the installation groove. Then, the base is pushed against the rear inner wall of the mounting seat, aligning the card slot on the base with the clamping block. Then, loosen the pull plate. At this time, the clamping spring in the installation groove rebounds, pushing the clamping block into the card slot, thereby fixing the base and the current transformer thereon, completing the assembly of the current transformer. By means of clamping, it is not necessary to use bolts to fix the current transformer, which facilitates the assembly or disassembly of the current transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a current transformer housing that is convenient for assembly according to the present invention;

[0017] Figure 2 FIG. 2 is a schematic diagram of the overall structure of the mounting seat of a current transformer housing that is convenient for assembly according to the present invention;

[0018] Figure 3 FIG. 3 is a schematic diagram of the overall structure of the connecting device of a current transformer housing that is convenient for assembly according to the present invention;

[0019] Figure 4 FIG. 4 is a schematic diagram of the overall structure of the base of a current transformer housing that is convenient for assembly according to the present invention.

[0020] In the figure: 1, mounting seat; 2, connecting device; 3, base; 4, fixing plate; 5, chute; 6, current transformer; 7, mounting cover; 10, installation groove; 11, clamping spring; 12, clamping block; 13, pull plate; 14, adjustment groove; 20, connecting frame; 21, connecting seat; 22, connecting groove; 23, connecting plate; 24, fixing screw; 30, card slot; 31, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] As Figures 1-4 shown, a current transformer housing that is convenient for assembly includes a mounting base 1. Fixed plates 4 are fixedly installed at the lower parts of the left and right ends of the mounting base 1. Three sliding grooves 5 are opened on the lower inner wall of the mounting base 1. A base 3 is commonly installed at the upper ends of the three sliding grooves 5. A current transformer 6 is fixedly installed at the upper end of the base 3. An installation cover 7 is installed at the front end of the current transformer 6. Connecting devices 2 are commonly installed at the left and right ends of the current transformer 6 and the installation cover 7.

[0025] Installation grooves 10 are opened at the rear parts of the left inner wall and the right inner wall of the mounting base 1. Adjusting grooves 14 are opened at the upper ends of the two installation grooves 10. A set of clamping springs 11 are fixedly installed in each of the two installation grooves 10. Clamping blocks 12 are fixedly installed at the corresponding ends of the two sets of clamping springs 11. Pulling plates 13 are fixedly installed at the upper ends of the two clamping blocks 12; the pulling plates 13 are located in the adjusting grooves 14, and the upper end surfaces of the pulling plates 13 extend out of the adjusting grooves 14. By pulling the pulling plates 13 to retract in the adjusting grooves 14, the pulling plates 13 drive the clamping blocks 12 to retract into the installation grooves 10. Then, the base 3 is pushed against the rear inner wall of the mounting base 1, so that the card slots 30 on the base 3 are aligned with the clamping blocks 12. Then, the pulling plates 13 are loosened. At this time, the clamping springs 11 in the installation grooves 10 rebound, so as to push the clamping blocks 12 into the card slots 30. By means of clamping, it is not necessary to use bolts to fix the current transformer 6, thus facilitating the assembly or disassembly of the current transformer 6.

[0026] The connecting device 2 includes connecting frames 20 and connecting seats 21. There are two connecting frames 20 and two connecting seats 21. Connecting grooves 22 are opened at the front ends of the two connecting seats 21. Fixed bolts 24 are installed at the opposite ends of the two connecting seats 21. Connecting plates 23 are fixedly installed at the rear ends of the two connecting seats 21. The two connecting seats 21 are respectively fixedly installed at the left and right ends of the installation cover 7. The two connecting frames 20 are respectively fixedly installed at the left and right ends of the current transformer 6; the connecting plates 23 and the connecting grooves 22 are the same in size and correspond to each other in the front and rear positions. The installation cover 7 is inserted into the connecting grooves 22 on the connecting frames 20 on both sides of the current transformer 6 through the connecting plates 23 on the two connecting seats 21 on its two sides, so that the installation cover 7 can be quickly docked with the current transformer 6.

[0027] Both the left and right ends of the base 3 are provided with card slots 30, and three sliders 31 are fixedly installed at the lower end of the base 3.

[0028] It should be noted that the present utility model is an outer shell of a current transformer that is convenient for assembly. First, the mounting cover 7 is inserted into the connection slots 22 on the connection frames 20 on both sides of the current transformer 6 through the connecting plates 23 on the connecting seats 21 on both sides thereof, so that the mounting cover 7 can be quickly docked with the current transformer 6. Then, the fixing screws 24 are screwed into the connection frames 20 and the connecting plates 23 to complete the installation of the outer shell of the current transformer. After the outer shell of the current transformer is installed, the base 3 is clamped in the three sliding grooves 5 in the mounting seat 1 through the three sliders 31 at its lower end. At this time, by pulling the pull plate 13 to retract in the adjustment groove 14, the pull plate 13 drives the clamping block 12 to retract into the mounting groove 10. Then, the base 3 is pushed against the rear inner wall of the mounting seat 1 to align the card slots 30 on the base 3 with the clamping block 12. Then, the pull plate 13 is loosened. At this time, the clamping spring 11 in the mounting groove 10 rebounds, so as to push the clamping block 12 into the card slot 30, thereby fixing the base 3 and the current transformer 6 thereon, and completing the assembly of the current transformer 6. By means of clamping, there is no need to use bolts to fix the current transformer 6, which is convenient for the assembly or disassembly of the current transformer 6.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A current transformer housing that is convenient for assembly, comprising a mounting base (1), characterized in that: At the lower parts of the left and right ends of the mounting base (1), fixing plates (4) are fixedly installed. Three sliding grooves (5) are formed on the lower inner wall of the mounting base (1). A base (3) is jointly installed at the upper ends of the three sliding grooves (5). A current transformer (6) is fixedly installed at the upper end of the base (3). An installation cover (7) is installed at the front end of the current transformer (6). Connecting devices (2) are jointly installed at the left and right ends of the current transformer (6) and the installation cover (7).

2. The current transformer housing that is convenient for assembly according to claim 1, wherein: Installation grooves (10) are formed at the rear parts of the left inner wall and the right inner wall of the mounting base (1). Adjusting grooves (14) are formed at the upper ends of the two installation grooves (10). A set of clamping springs (11) is fixedly installed in each of the two installation grooves (10). Clamping blocks (12) are fixedly installed at the corresponding ends of the two sets of clamping springs (11). Pulling plates (13) are fixedly installed at the upper ends of the two clamping blocks (12).

3. The current transformer housing which is convenient for assembly according to claim 1, characterized in that: The connecting device (2) includes connecting frames (20) and connecting seats (21). There are two of each of the connecting frames (20) and the connecting seats (21). Connecting grooves (22) are formed at the front ends of the two connecting seats (21). Fixing bolts (24) are installed at the opposite ends of the two connecting seats (21). Connecting plates (23) are fixedly installed at the rear ends of the two connecting seats (21). The two connecting seats (21) are respectively fixedly installed at the left and right ends of the installation cover (7). The two connecting frames (20) are respectively fixedly installed at the left and right ends of the current transformer (6).

4. The current transformer housing that is convenient for assembly according to claim 1, wherein: Card slots (30) are formed at the left and right ends of the base (3). Three sliders (31) are fixedly installed at the lower end of the base (3).

5. The current transformer housing that is convenient for assembly according to claim 2, wherein: The pulling plate (13) is located in the adjusting groove (14), and the upper end surface of the pulling plate (13) extends out of the adjusting groove (14).

6. The current transformer housing that is convenient for assembly according to claim 3, wherein: The connecting plate (23) is the same in size as the connecting groove (22) and is corresponding in position front and back.

Images