Isolation coil structure of safe electric device

Abstract

The utility model relates to the technical field of safe electric equipment, in particular to an isolation coil structure of a safe electric device. Comprising an iron core and coils. The iron core is arranged in the coil, the coil comprises winding layers, insulating layers and barrier rods, the winding layers are arranged on the outer side of the iron core, the insulating layers are arranged on the outer walls of the winding layers, the barrier rods are installed between the adjacent winding layers, and the barrier rods form heat dissipation channels between the adjacent winding layers; according to the utility model, the blocking rods are arranged, and the heat dissipation channels with the annular structures are formed between the adjacent winding layers, so that a larger gap is formed between the adjacent winding layers, the insulating layers are not easy to be broken down under the action of current when the coil works, the contact and friction between the adjacent insulating layers are reduced, the abrasion of the coil is further reduced, and the service life of the coil is prolonged. Meanwhile, a large-range heat dissipation channel is formed, generated heat can be rapidly and timely discharged, and the heat dissipation effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of safety electrical equipment, in particular to an isolation coil structure of a safety electrical device. Background Art

[0002] Safety electrical device refers to a device that can be connected to the mains and achieve magneto-electric conversion. With the safety electrical device, the neutral wire and the live wire are isolated from the ground, and the current will not be directly conducted to the human body, and sparks and leakage will not be generated, making the electricity use process very safe. It can be widely used in hospitals, the military and other places.

[0003] In the safety electrical device, the main component is a magnetic floater arranged inside the magnetic floater, which can realize the function of magnetoelectric conversion. In the prior art, the magnetic floater is generally composed of one or more coil structures. However, due to the close contact or small gap between the winding layers of the traditional coil structure, the adjacent winding layers are easily broken down when the coil is working, and the friction between the adjacent winding layers is large, which leads to serious wear and tear, shortening the service life of the coil. At the same time, due to the small gap under the structure, the heat is not easy to dissipate, resulting in poor heat dissipation effect of the coil, which greatly affects the use effect of the safety electrical device;

[0004] Based on the above problems, we propose an isolation coil structure for a safety electrical device. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an isolation coil structure of a safety electrical device. After being improved, the coil structure can effectively solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the utility model is:

[0007] An isolation coil structure of a safety electrical device, comprising an iron core and a coil;

[0008] The iron core is arranged inside the coil, and the coil includes a winding layer, an insulating layer and a blocking rod. The outer side of the iron core is provided with a winding layer, the outer wall of the winding layer is provided with an insulating layer, and a blocking rod is installed between adjacent winding layers, and the blocking rod forms a heat dissipation channel between adjacent winding layers.

[0009] Furthermore, the winding layer is a copper sheet layer.

[0010] Furthermore, the iron core adopts a silicon steel block, and the silicon steel block is composed of a plurality of silicon steel sheets.

[0011] Furthermore, the insulating layer includes an insulating paper layer and an insulating varnish layer, the insulating paper layer is arranged on the outer side of the winding layer, and the insulating varnish layer is arranged on the outer side of the insulating paper layer.

[0012] Furthermore, the material of the barrier rod is ceramic, the barrier rod is a rectangular structure, and a plurality of barrier rods are installed between adjacent winding layers so as to form a heat dissipation channel with an annular structure.

[0013] Furthermore, the coil structure also includes a silicon steel bar, which is connected to the iron core and is composed of a plurality of silicon steel sheets. The iron core and the coil are arranged in three groups, and the silicon steel bar is connected to the three iron cores respectively.

[0014] Furthermore, the silicon steel strip includes a first silicon steel strip and a second silicon steel strip, the first silicon steel strip and the second silicon steel strip are respectively connected to the top and bottom of the iron core, the first silicon steel strip is provided with a first fixing frame, and the second silicon steel strip is provided with a second fixing frame.

[0015] Furthermore, the first fixing frame includes a first upper connecting frame and a second upper connecting frame, the first silicon steel strip is arranged between the first upper connecting frame and the second upper connecting frame, the first upper connecting frame and the second upper connecting frame are fixedly connected by bolts, the first upper connecting frame is also screwed with a mounting frame, and a plurality of wiring terminals are also installed on the mounting frame.

[0016] Furthermore, the second fixing frame includes a first lower connecting frame and a second lower connecting frame, the second silicon steel strip is arranged between the first lower connecting frame and the second lower connecting frame, the first lower connecting frame and the second lower connecting frame are fixedly connected by bolts, and the first lower connecting frame and the second lower connecting frame are both bent 90°.

[0017] The beneficial effects of the utility model are:

[0018] Compared with the prior art, the utility model provides a barrier rod to form a heat dissipation channel with an annular structure between adjacent winding layers, so that a larger gap is formed between adjacent winding layers. When the coil is working, the insulating layer is not easily broken down by the action of the current, and the contact between adjacent insulating layers is reduced, the friction is reduced, and the wear of the coil is reduced, thereby extending the service life of the coil. At the same time, a larger heat dissipation channel is formed, which can quickly and timely discharge the generated heat, and the heat dissipation effect is better. Not only can the coil components be better protected, but also the use effect of the safety electrical device is improved, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another side of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified image of

[0022] Figure 4 It is a wiring diagram of the coil structure of the utility model.

[0023] In the figure, 1, coil; 2, winding layer; 3, barrier rod; 4, heat dissipation channel; 5, first silicon steel strip; 6, second silicon steel strip; 7, first fixing frame; 8, second fixing frame; 9, first upper connecting frame; 10, second upper connecting frame; 11, mounting frame; 12, wiring terminal; 13, first lower connecting frame; 14, second lower connecting frame. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-3 As shown,

[0026] An isolation coil structure of a safety electrical device includes an iron core (not shown) and a coil 1; the iron core is arranged inside the coil 1, and the coil 1 includes a winding layer 2, an insulating layer (not shown) and a blocking rod 3. The outer side of the iron core is provided with a winding layer 2, and the outer wall of the winding layer 2 is provided with an insulating layer. Barrier rods 3 are installed between adjacent winding layers 2, and the barrier rods 3 form a heat dissipation channel 4 between adjacent winding layers 2; in this embodiment, by installing the barrier rods 3 between adjacent winding layers 2, a heat dissipation channel 4 is formed, and adjacent insulating layers are separated to avoid contact between them to cause breakdown or damage, thereby improving the use effect and quality of the coil structure.

[0027] As a preferred embodiment; the winding layer 2 is a copper sheet layer; it can be understood that pure copper sheets are mainly used in the winding process, and the structure is in sheet form. The use of pure copper sheets can enable it to withstand larger currents and has better use effects.

[0028] As a preferred embodiment, the iron core adopts a silicon steel block, which is composed of several silicon steel sheets. It can be understood that the whole iron core is a silicon steel block, and the silicon steel block is formed by stacking and pressing several silicon steel sheets, in order to enhance the effect of magnetoelectric conversion.

[0029] As a preferred embodiment; the insulating layer includes an insulating paper layer and an insulating paint layer, an insulating paper layer is arranged on the outside of the winding layer 2, and an insulating paint layer is arranged on the outside of the insulating paper layer; by adopting a double-layer insulating layer structure, the insulating effect of the winding layer 2 can be improved; the insulating paper layer can be bonded to the outer wall of the winding layer 2, and the insulating paint layer can be coated on the outer wall of the insulating paper layer, and the thickness of the insulating paper layer and the insulating paint layer can be between 1-5mm.

[0030] As a preferred embodiment; the material of the barrier rod 3 is ceramic, the barrier rod 3 is a rectangular structure, and a plurality of barrier rods 3 are installed between adjacent winding layers 2, so that they can form a heat dissipation channel 4 with a ring structure; the structural design of the barrier rod 3 enables the barrier rod 3 to pass through the upper and lower parts of the coil 1, so that the coil 1 at this part has a hollow structure from top to bottom, thereby greatly improving the heat dissipation efficiency; in addition, the arrangement of multiple barrier rods 3 forms a heat dissipation channel 4 with a closed-loop structure, which has a large heat dissipation range and a good heat dissipation effect.

[0031] As a preferred embodiment; the coil structure also includes a silicon steel bar, which is connected to the iron core, and the silicon steel bar is composed of a plurality of silicon steel sheets. The iron core and the coil 1 are arranged in three groups, and the silicon steel bar is connected to the three iron cores respectively; in the present application, the silicon steel bar is connected to the three iron cores respectively, which can be an integrally formed structure. Under this structure, the connection of the three coils 1 is more compact, which can meet the use of three-phase electricity.

[0032] As a preferred embodiment, the silicon steel strip includes a first silicon steel strip 5 and a second silicon steel strip 6, the first silicon steel strip 5 and the second silicon steel strip 6 are connected to the top and the bottom of the iron core respectively, the first silicon steel strip 5 is provided with a first fixing frame 7, and the second silicon steel strip 6 is provided with a second fixing frame 8. By using the first fixing frame 7 and the second fixing frame 8, the silicon steel sheets on the first silicon steel strip 5 and the second silicon steel strip 6 can be effectively pressed, further ensuring the effect of magnetoelectric conversion.

[0033] As a preferred embodiment; the first fixing frame 7 includes a first upper connecting frame 9 and a second upper connecting frame 10, the first silicon steel strip 5 is arranged between the first upper connecting frame 9 and the second upper connecting frame 10, the first upper connecting frame 9 and the second upper connecting frame 10 are fixed by bolts, and a mounting frame 11 is also screwed on the first upper connecting frame 9, and a plurality of wiring terminals 12 are also installed on the mounting frame 11; by installing the mounting frame 11 on the first upper connecting frame 9, the mounting frame 11 will not interfere with the entire coil structure, and the wiring terminal 12 can also be installed, and the wire is directly introduced into the interior of the coil 1 from the wiring terminal 12, which can effectively reduce the wiring path, making the magnetic levitation device more reliable and stable.

[0034] As a preferred embodiment; the second fixing frame 8 includes a first lower connecting frame 13 and a second lower connecting frame 14, the second silicon steel strip 6 is arranged between the first lower connecting frame 13 and the second lower connecting frame 14, the first lower connecting frame 13 and the second lower connecting frame 14 are fixedly connected by bolts, and the first lower connecting frame 13 and the second lower connecting frame 14 are both bent 90°; it can be understood that it is set to be bent 90° so that the bottom surface of the bent bottom is flush, which makes it easy to install it inside the chassis of the safety electrical device, the bolts are installed on the top of the bend, and the bottom of the bend is provided with a mounting hole, which is convenient for installing the entire magnetic levitation device, and the installation process is flexible and simple.

[0035] like Figure 4 As shown in the figure, A, B, C refer to the three-phase electricity connected to the mains, which is the live wire, and N is the neutral wire connected to the mains; a, b, c refer to the three-phase electricity output for safety, which is the live wire, and n is the neutral wire for safety output; A, B, C, a, b, c, N, n are connected to the terminals respectively, A, B, C, N is one winding, a, b, c, n is another winding, when the mains is connected and energized, it conducts with the coil to form a current, and then generates a magnetic field, which is the process of electric to magnetic conversion; after the magnetic field is generated, the other winding (a, b, c, n) of the coil is The generation of current is a process of converting magnetism into electricity, which can finally be output through a safe electrical output switch. In traditional mains power connection, the live wire and the neutral wire in the mains power are both connected to the ground. When the human body touches the leaking wire, the live wire, the neutral wire, the ground and the human body are connected, which causes electric shock injury to the human body. After adopting this device, the live wire and the neutral wire are isolated from the ground, and there is no conduction to the human body. The current passing through the human body is very small, less than 1.0 mA (the human body's perceived current is about 1.1 mA), so it basically does not cause harm to the human body.

[0036] In the present application, the magnetic levitation device (i.e., coil structure) is installed inside the chassis of a safety electrical device, and several terminal blocks 12 are used to connect to the mains, and then connected to the interior of the coil 1 through wires (extending through the heat dissipation channel 4), forming a connection with the winding layer 2 (winding method). When powered on, a magnetic field is generated, and electromagnetic conversion is performed first, and then magnetoelectric conversion output is performed.

[0037] It should be pointed out that the main problems in the prior art are: the conventional coil structure is easy to be punctured due to the close contact or small gap between the winding layers, and the friction between the adjacent winding layers is large, which leads to serious wear and tear, shortening the service life of the coil. At the same time, the heat is not easy to dissipate, resulting in poor heat dissipation effect of the coil;

[0038] Therefore, after the improvement of the present application, a heat dissipation channel 4 with an annular structure is formed between adjacent winding layers 2 by providing a barrier rod 3, so that a larger gap is formed between adjacent winding layers 2. When the coil 1 is working, the insulating layer is not easily broken down by the action of the current, and the contact between adjacent insulating layers is reduced, the friction is reduced, and the wear of the coil 1 is reduced, and the service life of the coil 1 is extended. At the same time, a larger range of heat dissipation channel 4 is formed, which can quickly and timely discharge the generated heat, and the heat dissipation effect is better, which can not only better protect the coil 1 components, but also improve the use effect of the safety electrical device.

[0039] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An isolation coil structure of a safety electrical device, comprising an iron core and a coil; the iron core is arranged inside the coil, characterized in that: The coil includes a winding layer, an insulating layer and a blocking rod. The outer side of the iron core is provided with a winding layer, the outer wall of the winding layer is provided with an insulating layer, and a blocking rod is installed between adjacent winding layers. The blocking rod forms a heat dissipation channel between adjacent winding layers.

2. The isolation coil structure of a safety electrical device according to claim 1, characterized in that: The winding layer is a copper sheet layer.

3. The isolation coil structure of a safety electrical device according to claim 2, characterized in that: The iron core adopts a silicon steel block, which is composed of a plurality of silicon steel sheets.

4. The isolation coil structure of a safety electrical device according to claim 3, characterized in that: The insulating layer comprises an insulating paper layer and an insulating varnish layer. The outer side of the winding layer is provided with an insulating paper layer, and the outer side of the insulating paper layer is provided with an insulating varnish layer.

5. The isolation coil structure of a safety electrical device according to claim 4, characterized in that: The material of the barrier rod is ceramic and the barrier rod is a rectangular structure. A plurality of barrier rods are installed between adjacent winding layers so as to form a heat dissipation channel with an annular structure.

6. The isolation coil structure of a safety electrical device according to claim 5, characterized in that: The coil structure also includes a silicon steel bar, which is connected to the iron core and is composed of a plurality of silicon steel sheets. The iron core and the coil are arranged in three groups, and the silicon steel bar is connected to the three iron cores respectively.

7. The isolation coil structure of a safety electrical device according to claim 6, characterized in that: The silicon steel strip includes a first silicon steel strip and a second silicon steel strip, the first silicon steel strip and the second silicon steel strip are respectively connected to the top and the bottom of the iron core, the first silicon steel strip is provided with a first fixing frame, and the second silicon steel strip is provided with a second fixing frame.

8. The isolation coil structure of a safety electrical device according to claim 7, characterized in that: The first fixing frame includes a first upper connecting frame and a second upper connecting frame, the first silicon steel strip is arranged between the first upper connecting frame and the second upper connecting frame, the first upper connecting frame and the second upper connecting frame are fixedly connected by bolts, the first upper connecting frame is also screwed with a mounting frame, and a plurality of wiring terminals are also installed on the mounting frame.

9. The isolation coil structure of a safety electrical device according to claim 8, characterized in that: The second fixing frame includes a first lower connecting frame and a second lower connecting frame, the second silicon steel strip is arranged between the first lower connecting frame and the second lower connecting frame, the first lower connecting frame and the second lower connecting frame are fixedly connected by bolts, and the first lower connecting frame and the second lower connecting frame are both bent 90 degrees.

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