Reinforced insulation current transformer

Abstract

The utility model discloses a reinforced insulation current transformer which comprises a shell and a current transformer body arranged in the shell. A base is fixed to the lower end face of the current transformer body, meanwhile, the upper end of the current transformer body is fixed to a receiving rod, the outer side of the receiving rod is wrapped with an insulating protective shell, the insulating protective shell is arranged on the upper surface of the shell, and a connecting sliding block is fixed to the lower end face of the insulating protective shell. The connecting sliding block is in elastic sliding connection with the shell through a reset spring. According to the reinforced insulation current transformer, the insulation protection shell wraps the collection rod, then the insulation effect is achieved, the risk of electric leakage is avoided, safety is improved, the current transformer body is convenient to disassemble, disassembly is achieved without disassembling screws one by one through tools, the disassembly process is simple and convenient, and the disassembly efficiency is improved. Meanwhile, the installation process is simplified, multiple sets of screws are not needed for fixing, the process is simple, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer with enhanced insulation. Background Technique

[0002] A current transformer is a commonly used device in an electrical system. 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. Since the transformer body is relatively fragile, generally, the transformer body needs to be protected by a housing. For example, in the patent with the publication number "CN218471705" and the patent name "Current Transformer", a piston structure is arranged at the front end of the quick plug-in to act as a damping structure, which can make the upper housing slowly start to rebound after fitting with the lower housing. After the upper housing and the lower housing are fitted, at least for a moment, the jacking rod can still maintain the ring plate at the highest point of its jacking. And in this embodiment, by setting the height of the jacking rod, the ring plate can just contact the sealing ring when the upper housing fits with the lower housing. Cooperating with the annular protrusion that has entered the annular sealing groove, the utility model can realize squeezing the sealing ring between the ring plate and the annular protrusion, thereby discharging the air between the annular protrusion and the sealing ring. Under the action of atmospheric pressure, the sealing ring can tightly fit the annular protrusion. However, the above structure still has the following problems in actual use:

[0003] During the use of the above structure, the wires at the wiring port of the current transformer are usually prone to loosening, and the loosened wires will cause leakage at the wiring port of the current transformer. If not repaired in time, it is easy to cause damage to the current transformer. At the same time, no insulation measures are provided at the wiring port of the current transformer. Therefore, when the staff performs maintenance, there is a high risk of electric shock, which reduces the safety.

[0004] Therefore, we have proposed a current transformer with enhanced insulation that can well solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a current transformer with enhanced insulation to solve the problems raised in the above background technique, that is, the loosened wires in the current market will cause leakage at the wiring port of the current transformer. If not repaired in time, it is easy to cause damage to the current transformer. At the same time, no insulation measures are provided at the wiring port of the current transformer. Therefore, when the staff performs maintenance, there is a high risk of electric shock, which reduces the safety.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A current transformer with enhanced insulation, including a housing and a current transformer main body arranged inside the housing;

[0007] It further includes: a base is fixed to the lower end surface of the main body of the current transformer. Meanwhile, the upper end of the main body of the current transformer is fixed to a receiving rod, and an insulating protective shell is wrapped around the outer side of the receiving rod. Meanwhile, the insulating protective shell is arranged on the upper surface of the outer shell, and a connecting slider is fixed to the lower end surface of the insulating protective shell.

[0008] Preferably, the connecting slider is elastically slidably connected to the outer shell through a return spring, and both ends of the return spring are respectively fixed to the connecting slider and the outer shell.

[0009] Preferably, one end of a pull rope is fixed to the outer side of the connecting slider, and the other end of the pull rope is wound around the outer side of a rotating rod.

[0010] Preferably, the rotating rod is arranged on the front side of the outer shell. Meanwhile, the rear end of the rotating rod extends into the interior of the outer shell and forms a rotational connection structure with the outer shell. Moreover, a gear is fixed in the middle of the rotating rod.

[0011] Preferably, racks are engaged with the upper and lower ends of the gear, and the moving directions of the racks are opposite.

[0012] Preferably, the outer end of the rack is fixed to the lower end surface of a connecting plate. The connecting plate is slidably arranged at the inner bottom end of the outer shell. Meanwhile, a clamping rod is fixed to the inner side of the connecting plate.

[0013] Preferably, the inner end of the clamping rod extends into the interior of a clamping hole and forms a clamping connection with the clamping hole. Meanwhile, the clamping hole is opened on the outer side of the base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this enhanced-insulation current transformer, not only does the insulating protective shell wrap the receiving rod, thereby achieving an insulating effect, thus avoiding the risk of electric leakage and improving safety, but also it is convenient to disassemble the main body of the current transformer. There is no need to use tools to disassemble screws one by one for disassembly. The disassembly process is simple and convenient. Meanwhile, the installation process is simplified. There is no need to use multiple groups of screws for fixation. The process is simple, time-saving and labor-saving. The specific content is as follows:

[0015] Through the elastic force of the return spring, the connecting sliders are driven to approach each other, thereby enabling the connecting sliders to drive the fixed insulating protective shell to approach together, thus enabling the insulating protective shell to wrap the receiving rod, thereby achieving an insulating effect, thus avoiding the risk of electric leakage and improving safety;

[0016] By winding the pull rope through the rotating rod, a pulling force is generated while the pull rope is being wound, thereby pulling the connecting slider to slide outward. Thus, while the connecting slider slides outward, it drives the insulating protective shells to move away from each other, thereby releasing the protective insulation of the receiving rod, so that there is no need for manual release, further improving safety and having good practicability;

[0017] Through the rotation of the gear, the meshing rack is driven to move together, and then the rack drives the fixed connecting plate to move outward, so that the connecting plate drives the clamping rod to slide out of the clamping hole, thereby releasing the limit on the base. At this time, the current transformer body can be disassembled without using tools to disassemble the screws one by one, and the disassembly process is simple and convenient;

[0018] The rack drives the fixed connecting plate to move inward together, and then the connecting plate drives the clamping rod to slide into the clamping hole, and then forms a clamping connection with the clamping hole, thereby realizing the limit on the base and the installation effect, thus simplifying the installation process without using multiple groups of screws for fixation, with a simple process, saving time and effort;

[0019] Moreover, the disassembly of the base and the disassembly and assembly of the insulating protective shell can be carried out synchronously without separate disassembly, thereby reducing the disassembly and assembly time, improving the use effect, and facilitating the replacement and maintenance of the workers, with good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view structural schematic diagram of the present utility model;

[0021] Figure 2 is the column-sectional structural schematic diagram of the present utility model;

[0022] Figure 3 For the present utility model Figure 2 is the enlarged structural schematic diagram at A in;

[0023] Figure 4 For the present utility model Figure 2 is the enlarged structural schematic diagram at B in;

[0024] Figure 5 is the bottom view structural schematic diagram of the present utility model;

[0025] Figure 6 is the separated structural schematic diagram of the insulating protective shell of the present utility model.

[0026] In the figure: 1. Outer shell; 2. Current transformer body; 3. Base; 4. Rotating rod; 5. Gear; 6. Rack; 7. Connecting plate; 8. Clamping rod; 9. Clamping hole; 10. Pulling rope; 11. Connecting slider; 12. Return spring; 13. Insulating protective shell; 14. Receiving rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 6 , the present invention provides the following technical solutions:

[0029] Embodiment 1: To solve the problem in the prior art that loose wires can cause leakage at the wiring port of the current transformer. If not repaired in time, it is easy to cause damage to the current transformer. At the same time, no insulation measures are provided at the wiring port of the current transformer. Therefore, when the staff conducts maintenance, there is a high risk of electric shock, which reduces the safety. Therefore, the following solution is disclosed, including a housing 1 and a current transformer main body 2 arranged inside the housing 1; further including: a base 3 is fixed to the lower end surface of the current transformer main body 2, and at the same time, the upper end of the current transformer main body 2 is fixed to a receiving rod 14, and an insulating protective shell 13 is wrapped around the outside of the receiving rod 14. At the same time, the insulating protective shell 13 is arranged on the upper surface of the housing 1. At the same time, a connecting slider 11 is fixed to the lower end surface of the insulating protective shell 13. The connecting slider 11 is elastically slidably connected to the housing 1 through a return spring 12. The two ends of the return spring 12 are respectively fixed to the connecting slider 11 and the housing 1. The outside of the connecting slider 11 is fixed to one end of a pull rope 10, and the other end of the pull rope 10 is wound around the outside of a rotating rod 4.

[0030] First, by rotating the rotating rod 4, the rotating rod 4 winds up the pull rope 10, and when the pull rope 10 is wound up, a pulling force is generated, which pulls the connecting slider 11 to slide outward. Thus, when the connecting slider 11 slides outward, it drives the insulating protective shells 13 to move away from each other, thereby removing the protective insulation of the receiving rod 14, eliminating the need for manual removal, further improving safety and having good practicability. At the same time, when the rotating rod 4 rotates in the reverse direction and no longer winds up the pull rope 10, the pull rope 10 will no longer exert a pulling force on the connecting slider 11. At this time, through the elastic force of the return spring 12, the connecting sliders 11 are driven to move closer to each other, so that the connecting slider 11 drives the fixed insulating protective shell 13 to move closer together, so that the insulating protective shell 13 wraps the receiving rod 14, achieving an insulating effect and avoiding the risk of electric leakage, improving safety.

[0031] Embodiment 2: On the basis of Embodiment 1, a new technical solution is added, so that there is no need to use tools to disassemble the screws one by one for disassembly, and the disassembly process is simple and convenient. For specific reference Figures 2 - 3, the rotating rod 4 is arranged on the front side of the housing 1. At the same time, the rear end of the rotating rod 4 extends into the interior of the housing 1 to form a rotating connection structure with the housing 1. Moreover, a gear 5 is fixed in the middle of the rotating rod 4. The upper and lower ends of the gear 5 are engaged with racks 6, and the moving directions of the racks 6 are opposite.

[0032] At the same time, when the rotating rod 4 rotates, it will also drive the gear 5 to rotate together. Through the rotation of the gear 5, the gear 5 drives the engaged racks 6 to move together. And there are two groups of racks 6, which are respectively arranged on the upper and lower sides of the gear 5. Therefore, the two groups of racks 6 will move outward at the same time, so that the racks 6 drive the fixed connecting plate 7 to move outward together, so that the connecting plate 7 drives the clamping rod 8 to slide out of the clamping hole 9, thereby releasing the limit on the base 3. At this time, the current transformer main body 2 can be disassembled, without using tools to disassemble the screws one by one, and the disassembly process is simple and convenient.

[0033] Embodiment 3: On the basis of Embodiment 2, a new technical solution is added, which simplifies the installation process. There is no need to use multiple groups of screws for fixation, and the process is simple, time-saving and labor-saving. For specific reference Figure 5 , the outer end of the rack 6 is fixed to the lower end surface of the connecting plate 7, and the connecting plate 7 is slidably arranged at the inner bottom end of the housing 1. At the same time, a clamping rod 8 is fixed to the inner side of the connecting plate 7. The inner end of the clamping rod 8 extends into the interior of the clamping hole 9 to form a clamping connection with the clamping hole 9. At the same time, the clamping hole 9 is opened on the outer side of the base 3.

[0034] When the rotating rod 4 rotates in the reverse direction, it will drive the gear 5 to rotate in the reverse direction together. Through the reverse rotation of the gear 5, it drives the two groups of racks 6 engaged with it to move inward, so that the racks 6 drive the fixed connecting plate 7 to move inward together, so that the connecting plate 7 drives the clamping rod 8 to slide into the clamping hole 9, and then forms a clamping connection with the clamping hole 9, thereby realizing the limit on the base 3, and then realizing the installation effect, thus simplifying the installation process. There is no need to use multiple groups of screws for fixation, and the process is simple, time-saving and labor-saving.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A reinforced insulation current transformer, comprising a housing (1) and a current transformer main body (2) disposed inside the housing (1); It is characterized in that It further includes: A base (3) is fixed to the lower end surface of the current transformer main body (2). At the same time, the upper end of the current transformer main body (2) is fixed to a receiving rod (14), and an insulating protective shell (13) is wrapped around the outside of the receiving rod (14). The insulating protective shell (13) is disposed on the upper surface of the housing (1). A connecting slider (11) is fixed to the lower end surface of the insulating protective shell (13).

2. The reinforced insulation current transformer according to claim 1, characterized in that: The connecting slider (11) is elastically slidably connected to the housing (1) through a return spring (12), and both ends of the return spring (12) are fixed to the connecting slider (11) and the housing (1) respectively.

3. The enhanced insulation current transformer according to claim 1, wherein: One end of a pull rope (10) is fixed to the outside of the connecting slider (11), and the other end of the pull rope (10) is wound around the outside of a rotating rod (4).

4. The enhanced insulation current transformer according to claim 3, characterized in that: The rotating rod (4) is disposed on the front side of the housing (1). At the same time, the rear end of the rotating rod (4) extends into the housing (1) and is rotatably connected to the housing (1). A gear (5) is also fixed in the middle of the rotating rod (4).

5. The enhanced insulation current transformer according to claim 4, wherein: The upper and lower ends of the gear (5) are engaged with racks (6), and the moving directions of the racks (6) are opposite.

6. The enhanced insulation current transformer according to claim 5, characterized in that: The outer end of the rack (6) is fixed to the lower end surface of a connecting plate (7). The connecting plate (7) is slidably disposed at the inner bottom end of the housing (1). A clamping rod (8) is fixed to the inner side of the connecting plate (7).

7. The enhanced insulation current transformer according to claim 6, wherein: The inner end of the clamping rod (8) extends into the inside of a clamping hole (9) and is snap-fitted with the clamping hole (9). The clamping hole (9) is opened on the outside of the base (3).

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