Combined current transformer

Abstract

The utility model relates to the technical field of power supply, and provides a combined current transformer which comprises a mounting base and a plurality of current transformer bodies, the current transformer bodies are all arranged in the mounting base, grooves are all formed in the surface of the mounting base, a pressing and fixing assembly is arranged in the mounting base, and side grooves are formed in the two ends of the surface of the mounting base. The protection assembly is arranged outside the side groove and the installation base, the through hole is formed in the installation base and communicates with the groove and the side groove, and a pressing rod is connected into the through hole in an inserted mode. By means of the technical scheme, the problems that in the prior art, when a current transformer is connected through a bolt, a shell of the current transformer needs to be punched, meanwhile, a tool matched with the bolt is used for installation, and the operation is complex, time and labor are wasted are solved. And when the current transformer is damaged, the bolt needs to be disassembled by using a tool, the damaged current transformer is replaced and then reconnected, and the problem that the hole is damaged and the current transformer cannot be used during secondary connection or repeated connection is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply, and in particular to a combined current transformer. Background Art

[0002] In power supply equipment such as transformers and transformer cabinets, the current is difficult to measure due to the need to frequently convert the current. In order to be more stable and safe when measuring the current, a current transformer is needed to stabilize the current area so that the current can be measured safely and effectively. After searching, it is found that the current transformer is an instrument for measuring current. It mainly relies on the principle of electromagnetic induction to realize the conversion and measurement of current. Through electromagnetic induction, the large current on the primary side can be converted into a small current on the secondary side for measurement and monitoring.

[0003] Traditionally, when using a current transformer, the stability of detection is taken into consideration, and two current transformers are connected together by bolts. In this way, current comparison and calibration can be performed, and double detection can also be performed to improve the accuracy of measurement. Although the connection of the current transformer can be completed, there are still some shortcomings. When connecting the current transformer by bolts, the shell of the current transformer needs to be punched, and tools compatible with the bolts are used to install it, which is relatively cumbersome. In addition, when the current transformer is damaged, tools are needed to remove the bolts and replace the damaged current transformer and reconnect it. When connecting twice or multiple times, the holes will be damaged and cannot be used. Therefore, the shell of the current transformer needs to be punched again, which increases the labor intensity of employees. For this reason, a combined current transformer is proposed to solve the above problems. Utility Model Content

[0004] The utility model proposes a combined current transformer, which solves the problem in the related art that when connecting the current transformer, it is necessary to punch holes in the shell of the current transformer by means of bolts, and use tools compatible with the bolts to install it, which is relatively cumbersome. In addition, when the current transformer is damaged, it is necessary to use tools to remove the bolts and replace the damaged current transformer before reconnecting it. However, the holes will be damaged and the current transformer cannot be used during secondary or multiple connections.

[0005] The technical solution of the utility model is as follows:

[0006] A mounting base and a plurality of current transformer bodies, wherein the current transformer bodies are all arranged in the mounting base;

[0007] A plurality of grooves and a pressing and fixing assembly, wherein the grooves are all formed on the surface of the mounting seat, and the pressing and fixing assembly is arranged in the mounting seat;

[0008] A pair of side grooves and a protective assembly, wherein the side grooves are provided at both ends of the surface of the mounting seat, and the protective assembly is provided outside the side grooves and the mounting seat;

[0009] A heat dissipation component is arranged at the bottom of the mounting base;

[0010] The clamping and fixing assembly includes a pair of through holes, which are opened in the mounting seat and communicated with the groove and the side groove. A pressure rod is inserted into the through hole, and a pair of bolts are inserted into the top of the pressure rod. The lower ends of the bolts are screwed into the side groove.

[0011] As a further technical solution, the protective assembly includes a pair of side frames, the side frames are fixed in the groove, a pair of shielding covers are rotatably connected between the side frames, and a locking hook is rotatably connected to the surface of the shielding covers.

[0012] As a further technical solution, a positioning block is provided on the surface of the mounting seat, and a notch is provided on the surface of the shielding cover. The notch corresponds to the position of the positioning block, and the opening size of the notch is larger than the positioning block.

[0013] As a further technical solution, the heat dissipation component includes an inner cavity, which is opened in the mounting seat. A circular opening is opened at the bottom of the mounting seat, and the circular opening is connected to the inner cavity.

[0014] As a further technical solution, a cooling fan is installed in the circular opening, and an air outlet is opened on the inner wall of the inner cavity, and the air outlet is located in the groove.

[0015] As a further technical solution, the cross section of the shielding cover is L-shaped, and a certain distance is left between the shielding covers.

[0016] As a further technical solution, the side frame is generally in a U-shaped structure with an opening facing downward.

[0017] As a further technical solution, pads are provided at the four relative corners of the bottom of the mounting seat, and the bottom surfaces of the pads are frosted anti-slip structural surfaces.

[0018] As a further technical solution, both the locking hook and the positioning block adopt a magnetic structure.

[0019] The working principle and beneficial effects of the utility model are as follows:

[0020] 1. The utility model is provided with a pressing and fixing assembly. Through the interaction of structures such as through holes, pressure rods and bolts, there is no need to open holes on the surface of the current transformer body. The pressure rod is directly pressed on the surface of the current transformer body, which is convenient for disassembly and will not be loose.

[0021] 2. The utility model is provided with a protective component. Through the interaction of structures such as the side frame, the shielding cover, the locking hook and the positioning block, the shielding covers on both sides can be protected by two L-shaped structures and can be rotated upward to open. At the same time, the U-shaped side frame can be used as a handle to operate, making the mounting base more portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is the axonometric drawing of the utility model;

[0025] Figure 3 This is an axonometric drawing from another perspective of the present invention;

[0026] Figure 4 This is a cross-sectional view of the utility model;

[0027] Figure 5 This is a cross-sectional view from another perspective of the present invention;

[0028] In the figure: 1. Mounting base; 2. Current transformer body; 3. Groove; 4. Side groove; 5. Pressing and fixing assembly; 5-1. Through hole; 5-2. Pressure rod; 5-3. Bolt; 6. Protective assembly; 6-1. Side frame; 6-2. Shielding cover; 6-3. Locking hook; 6-4. Positioning block; 6-5. Notch; 7. Heat dissipation assembly; 7-1. Inner cavity; 7-2. Circular opening; 7-3. Cooling fan; 7-4. Air outlet; 8. Pad. DETAILED DESCRIPTION

[0029] The following will be combined with 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.

[0030] like Figures 1 to 5 As shown, this embodiment proposes a combined current transformer, including

[0031] A mounting base 1 and a plurality of current transformer bodies 2, wherein the current transformer bodies 2 are all arranged in the mounting base 1;

[0032] A plurality of grooves 3 and a pressing and fixing assembly 5, wherein the grooves 3 are all provided on the surface of the mounting base 1, and the pressing and fixing assembly 5 is provided inside the mounting base 1;

[0033] A pair of side grooves 4 and a protective component 6, the side grooves 4 are opened at both ends of the surface of the mounting base 1, and the protective component 6 is arranged outside the side grooves 4 and the mounting base 1;

[0034] The heat dissipation component 7 is arranged at the bottom of the mounting base 1;

[0035] The clamping and fixing assembly 5 includes a pair of through holes 5-1, which are opened in the mounting base 1. The through holes 5-1 are connected to the groove 3 and the side groove 4. A pressure rod 5-2 is inserted into the through hole 5-1, and a pair of bolts 5-3 are inserted into the top of the pressure rod 5-2. The lower ends of the bolts 5-3 are screwed into the side groove 4.

[0036] In this embodiment, in order to achieve the effect of simultaneously pressing and fixing multiple current transformer bodies 2, a pressing and fixing component 5 is designed. Two through holes 5-1 are opened in the mounting base 1. The through holes 5-1 are connected to the groove 3 and the side groove 4. A pressure rod 5-2 is inserted in the through hole 5-1. The pressure rod 5-2 is pressed on the two side surfaces of the current transformer body 2. Bolts 5-3 are installed at both ends of the pressure rod 5-2 and are screwed into the side groove 4. Multiple current transformer bodies 2 can be pressed by the pressure rod 5-2.

[0037] Furthermore, the protective assembly 6 includes a pair of side frames 6-1, the side frames 6-1 are fixed in the groove 3, a pair of shielding covers 6-2 are rotatably connected between the side frames 6-1, and a locking hook 6-3 is rotatably connected to the surface of the shielding cover 6-2. A positioning block 6-4 is provided on the surface of the mounting seat 1, and a notch 6-5 is provided on the surface of the shielding cover 6-2. The notch 6-5 corresponds to the position of the positioning block 6-4, and the opening size in the notch 6-5 is larger than the positioning block 6-4.

[0038] In this embodiment, in order to achieve the effect of protecting the current transformer body 2 and making it capable of being lifted, a protective component 6 is designed. A side frame 6-1 is fixed in the side groove 4. Two shielding covers 6-2 are rotatably connected between the side frames 6-1. The shielding covers 6-2 can be flipped upward to open. A locking hook 6-3 is rotatably connected to the surface of the shielding cover 6-2. When the shielding cover 6-2 is opened, the two locking hooks 6-3 can be hooked together to keep the shielding cover 6-2 in an open state. A positioning block 6-4 is provided on the side surface of the mounting seat 1, and a notch 6-5 is provided on the surface of the protective cover. When the protective cover is closed, the positioning block 6-4 can rub through the notch 6-5, and the locking hook 6-3 can be connected to the positioning block 6-4 to achieve the effect of fixing the shielding cover 6-2.

[0039] Furthermore, the heat dissipation component 7 includes an inner cavity 7-1, which is opened in the mounting base 1. A circular opening 7-2 is opened at the bottom of the mounting base 1, and the circular opening 7-2 is connected to the inner cavity 7-1. A heat dissipation fan 7-3 is installed in the circular opening 7-2. An air outlet 7-4 is opened on the inner wall of the inner cavity 7-1, and the air outlet 7-4 is located in the groove 3.

[0040] In this embodiment, in order to achieve the heat dissipation effect of the current transformer body 2, a heat dissipation component 7 is designed, an inner cavity 7-1 is opened in the mounting base 1, a circular opening 7-2 is opened at the bottom and is connected to the inner cavity 7-1, a cooling fan 7-3 is installed in the circular opening 7-2, which can supply air to the inner cavity 7-1, and an air outlet 7-4 is opened on the inside of the inner cavity 7-1. The air outlet 7-4 is located in the groove 3, and air can be blown to the current transformer body 2 through the air outlet 7-4 to achieve the heat dissipation effect.

[0041] Furthermore, the cross section of the shielding cover 6-2 is L-shaped, and a certain distance is left between the shielding covers 6-2.

[0042] In this embodiment, the L-shaped structure provides a space in the middle, which facilitates flipping upward and opening.

[0043] Furthermore, the side frame 6-1 is an overall U-shaped structure with an opening facing downward.

[0044] In this embodiment, the mounting base 1 can be lifted by the side frame 6 - 1 due to the U-shaped structure.

[0045] Furthermore, pads 8 are provided at four opposite corners of the bottom of the mounting base 1 , and the bottom surfaces of the pads 8 are frosted anti-slip structural surfaces.

[0046] In this embodiment, by installing a plurality of pads 8, the mounting base 1 can be propped up to a certain height to avoid affecting the blowing effect of the cooling fan 7-3.

[0047] Furthermore, both the locking hook 6-3 and the positioning block 6-4 adopt a magnetic structure.

[0048] In this embodiment, the locking hook 6 - 3 and the positioning block 6 - 4 can be adsorbed together by a structure with magnetic force.

[0049] When it is needed, place the current transformer body 2 into the groove 3, insert the pressure rod 5-2 into the through hole 5-1, and then screw the bolts 5-3 at both ends to fix it. When carrying it, the U-shaped side frame 6-1 can be used as a handle. When operation is needed, open the lock hook 6-3 and separate it from the positioning block 6-4, then turn the shielding cover 6-2 upward 90°, and then connect the two lock hooks 6-3 together to start operation. During the operation, start the cooling fan 7-3, and continuously blow air outward through the air outlet 7-4 to dissipate heat from the current transformer body 2.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined current transformer, characterized in that: include A mounting seat (1) and a plurality of current transformer bodies (2), wherein the current transformer bodies (2) are all arranged in the mounting seat (1); A plurality of grooves (3) and a pressing and fixing assembly (5), wherein the grooves (3) are all formed on the surface of the mounting seat (1), and the pressing and fixing assembly (5) is arranged inside the mounting seat (1); A pair of side grooves (4) and a protective assembly (6), wherein the side grooves (4) are provided at both ends of the surface of the mounting seat (1), and the protective assembly (6) is provided outside the side grooves (4) and the mounting seat (1); a heat dissipation component (7), the heat dissipation component (7) being arranged at the bottom of the mounting seat (1); The pressing and fixing assembly (5) comprises a pair of through holes (5-1), the through holes (5-1) being provided in the mounting seat (1), the through holes (5-1) being connected to the groove (3) and the side groove (4), a pressure rod (5-2) being inserted and connected in the through hole (5-1), a pair of bolts (5-3) being inserted and connected at the top of the pressure rod (5-2), and the lower ends of the bolts (5-3) being screwed and connected in the side groove (4).

2. A combined current transformer according to claim 1, characterized in that: The protection assembly (6) comprises a pair of side frames (6-1), the side frames (6-1) being fixed in the groove (3), a pair of shielding covers (6-2) being rotatably connected between the side frames (6-1), and a locking hook (6-3) being rotatably connected on the surface of the shielding covers (6-2).

3. A combined current transformer according to claim 2, characterized in that: A positioning block (6-4) is provided on the surface of the mounting seat (1), and a notch (6-5) is provided on the surface of the shielding cover (6-2). The notch (6-5) corresponds to the position of the positioning block (6-4), and the inner opening size of the notch (6-5) is larger than that of the positioning block (6-4).

4. A combined current transformer according to claim 1, characterized in that: The heat dissipation component (7) comprises an inner cavity (7-1), the inner cavity (7-1) is opened in the mounting seat (1), a circular opening (7-2) is opened at the bottom of the mounting seat (1), and the circular opening (7-2) is connected to the inner cavity (7-1).

5. A combined current transformer according to claim 4, characterized in that: A heat dissipation fan (7-3) is installed in the circular opening (7-2), an air outlet (7-4) is provided on the inner wall of the inner cavity (7-1), and the air outlet (7-4) is located in the groove (3).

6. A combined current transformer according to claim 2, characterized in that: The cross section of the shielding covers (6-2) is in an L-shaped structure, and a certain interval is left between the shielding covers (6-2).

7. A combined current transformer according to claim 2, characterized in that: The side frame (6-1) is in a U-shaped structure with an opening facing downward.

8. The combined current transformer according to claim 1, characterized in that: Pads (8) are provided at four relative corners of the bottom of the mounting seat (1), and the bottom surfaces of the pads (8) are frosted anti-slip structural surfaces.

9. The combined current transformer according to claim 3, characterized in that: The locking hook (6-3) and the positioning block (6-4) both adopt a structure with magnetic force.

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