CN111354552A - Wire packs, high-voltage wire packs, high-voltage generators and X-ray photography systems - Google Patents

Abstract

The present application discloses a wire pack group, a high-voltage wire pack, a high-voltage generator and an X-ray imaging system, comprising at least two wire pack windings, each of which is nested from the inside to the outside, the wire pack windings It includes a skeleton that runs through up and down and a wire wound on the outer surface of the skeleton; in the two adjacent coil windings, the skeleton of the coil winding located on the outer layer covers the coil winding located on the inner layer, and is located on the outer layer. An oil-immersed channel penetrating up and down is formed between the skeleton of the coil winding of the layer and the skeleton of the coil winding located in the inner layer. Between each layer of windings, there are oil immersion passages that are easy to immerse oil up and down, so as to ensure that the wires can penetrate the transformer oil and ensure the dielectric strength.

Description

Wire packs, high-voltage wire packs, high-voltage generators and X-ray photography systems

technical field

The present application relates to the field of medical equipment, in particular to wire pack sets, high voltage wire packs, high voltage generators and X-ray imaging systems.

Background technique

The main body of the high-voltage generating device of the X-ray photography system is a high-voltage generator. The main device in the high-voltage generator is a high-voltage fuel tank. The high-voltage wire package in the high-voltage fuel tank is the key structural component for generating high voltage. Oil, the high-voltage line package is immersed in the transformer oil. The structure of the existing high-voltage wire package is a multi-layer tightly wound insulating paper structure, that is, a layer of enameled wire is wound on the winding of the wire package, and then multiple layers of insulating paper are wound, and the layers are tightly wound. After the high-voltage wire package of this structure is immersed in oil in the oil tank, the phenomenon of oil impermeability and air bubbles is likely to occur. This phenomenon will cause the compressive insulation strength between the high-voltage wire cladding layers to weaken, and it is easy to cause the wire package to withstand voltage breakdown, commonly known as Wire pack ignition failure.

SUMMARY OF THE INVENTION

The present application provides a new wire package set, high voltage wire package, high voltage generator and X-ray imaging system.

A wire wrap group, comprising at least two wire wrap windings, each of the wire wrap windings being nested from the inside to the outer layer, the wire wrap winding comprising a skeleton running through up and down and a wire wound on the outer surface of the skeleton; In the two adjacent said coil windings, the skeleton of the coil winding located in the outer layer covers the coil winding located in the inner layer, and the skeleton of the coil winding located in the outer layer and the coil winding located in the inner layer are An oil immersion channel that penetrates up and down is formed between the skeletons.

Among the two adjacent coil windings, the skeleton of one of the coil windings is provided with a convex portion, and the skeleton of the other coil winding is provided with a concave portion, and the convex portion and the concave portion are matched. The inner surface of the coil winding skeleton located on the outer layer may be provided with a convex part or a concave part, and correspondingly, the outer surface of the coil winding skeleton located in the inner layer is provided with a concave part or a convex part.

A wire wrap group, comprising at least two wire wrap windings, each of the wire wrap windings being nested from the inside to the outer layer, the wire wrap winding comprising a skeleton running through up and down and a wire wound on the outer surface of the skeleton; Among the two adjacent coil windings, the skeleton of the coil winding located in the outer layer covers the coil coil located in the inner layer.

A high-voltage wire package includes a magnetic core and at least two of the wire wrap groups, wherein the innermost wire wrap winding of each of the wire wrap groups covers the magnetic core.

The magnetic core has at least two vertical parts that are parallel to each other, the vertical parts are in one-to-one correspondence with the wire wrap groups, and the innermost wire wrap winding of each wire wrap group covers the vertical parts . Each vertical part is sleeved with a wire package group.

The magnetic core includes a separate upper magnetic core and a lower magnetic core, the upper magnetic core has an upper horizontal part and two upper vertical parts extending downward from both ends of the upper horizontal part, the lower magnetic core has The core has a lower horizontal portion and two lower vertical portions extending upward from both ends of the lower horizontal portion, the upper magnetic core and the lower magnetic core are fixed as a whole by the mounting assembly, and the end faces of the two upper vertical portions are The end faces of the two lower vertical parts are respectively connected to each other to form two vertical parts, there are two wire wrap groups, and the innermost wire wrap windings of the two wire wrap groups are respectively sheathed. two of the vertical parts.

The mounting assembly includes a strap, a fixing part and a screw, the upper magnetic core and the lower magnetic core are bundled together by the strap, both ends of the strap are provided with the fixing part, and the screw passes through One of the fixing parts is screwed with the other fixing part. By tightening or loosening the screw, you can tighten or loosen the trapped tie. By installing the assembly, the upper magnetic core, the lower magnetic core and the skeleton of the innermost coil winding can be fixed into one.

Each of the coil groups includes a primary coil winding, a secondary low-voltage coil winding, a secondary medium-voltage coil winding, and a secondary high-voltage coil winding. The crimping wrap winding and the secondary high-voltage wrap winding are nested layer by layer from inside to outside. The secondary low-voltage coil windings cover the primary coil windings, the secondary medium-voltage coil windings cover the secondary low-voltage coil windings, and the secondary high-voltage coil windings cover the secondary medium-voltage coil windings.

The upper horizontal portion of the upper magnetic core is positioned above the wire wrap group, and the lower horizontal portion of the lower magnetic core is positioned below the wire wrap group.

The upper end surface of the skeleton of the secondary low-voltage coil winding is provided with a flange extending radially outward of the skeleton. The function of the flange is to enhance the insulation capacity between the primary and secondary of the high-voltage wire package on the magnetic circuit of the magnetic core.

A high-voltage generator includes the high-voltage wire package.

An X-ray imaging system includes the high-voltage generator.

The beneficial effects of the present application are as follows: the coil group is nested and assembled from the inner to the outer layers of each layer of windings, each layer of windings can be manufactured and maintained separately, which is beneficial to mass production, and each layer of windings has upper and lower connections for oil immersion. The oil immersion channel ensures that the wire can penetrate the transformer oil and ensure the dielectric strength.

Description of drawings

1 is a schematic three-dimensional structure diagram of a high-voltage wire package of the present embodiment;

2 is a schematic front view of a high-voltage wire package of the present embodiment;

Fig. 3 is the perspective exploded schematic diagram of the high-voltage wire package of the present embodiment;

4 is a schematic cross-sectional view of the high-voltage wire package of the present embodiment;

5 is a schematic front view of two wire pack groups of the high-voltage wire pack of the present embodiment;

FIG. 6 is a perspective exploded schematic diagram of two wire pack groups of the high-voltage wire pack of the present embodiment.

Detailed ways

The present application will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. In addition, the "connection" and "connection" mentioned in this application include direct and indirect connections (connections) unless otherwise specified.

A coil group, comprising at least two coil windings, each coil winding is nested from the inside to the outer layer, and the innermost coil winding is directly sleeved on the magnetic core, and the coil winding is called the inner layer wire Wrap windings, other wrap windings are called outer wrap windings. Each coil winding is a different size, with larger coil windings nesting smaller coil windings. If there is only one outer-layer coil winding, the outer-layer coil winding shall directly cover the inner-layer coil winding. Both the inner and outer layer coil windings include a skeleton running through up and down and wires wound on the outer surface of the skeleton, and the skeleton is made of insulating material. For two adjacent wire wrap windings, the bobbin of the wire wrap winding on the outer layer covers the wire wrap winding on the inner layer. An oil-immersed channel is formed between two adjacent wire wrap windings. In the axial direction of the wire wrap winding skeleton, the oil-immersed channel runs up and down. The oil-immersed channel is located on the inner surface of the outer wire wrap winding frame and the inner wire wrap winding. between the outer surfaces of the skeleton. Due to the formation of the oil-immersed channel that runs through the upper and lower sides, it is ensured that the conductors can be fully soaked in transformer oil, and the dielectric strength between the windings is ensured. Of course, in some possible implementation manners, the wire package group is not provided with an oil immersion channel, which may be determined according to specific circumstances.

The outer coil winding closest to the inner coil winding is called the first outer coil winding. From the inside to the outside, each outer coil winding is called the first outer coil winding and the second outer coil in turn. Wrap windings...the nth outer wrap winding, the n+1th outer wrap winding..., the inner wrap winding is placed in the skeleton of the first outer wrap winding, and the nth outer wrap winding is placed on the first wrap In the skeleton of the n+1 outer coil winding.

A high-voltage wire package includes a magnetic core and at least two of the above-mentioned wire wrap groups, the magnetic core forms a closed-loop magnetic circuit, and the inner-layer wire wrap windings of each wire wrap group directly cover the magnetic core.

As shown in FIG. 1 to FIG. 6 , the high-voltage cable package includes a left cable package group 1 , a right cable package group 2 , a magnetic core 3 and a mounting assembly. The magnetic core 3 includes a separate upper magnetic core 31 and a lower magnetic core 32, the upper magnetic core 31 is located above the lower magnetic core 32, and the first and second magnetic cores are a series of left and right wire wrap groups. In a loop, the end faces of the first and second magnetic cores are made to abut against each other through the mounting assembly, thereby forming a closed magnetic circuit.

The left coil group 1 includes a left primary coil winding 11, a left secondary low voltage coil winding 12, a left secondary medium voltage coil winding 13, a left secondary high voltage coil winding 14, a left primary coil winding 11, a left secondary coil The low-voltage wrap winding 12, the left secondary medium-voltage wrap winding 13 and the left secondary high-voltage wrap winding 14 are nested from the inside to the outside, that is, the left secondary high-voltage wrap winding 14 is wrapped around the left secondary medium-voltage wrap The windings 13 and 13 are connected together, the left secondary medium-voltage coil winding 13 is sheathed with the left secondary low-voltage coil winding 12 and connected as a whole, the left secondary low-voltage coil winding 12 is sheathed with the left primary coil winding 11 and connected as a whole. After the coil windings are assembled together, the left coil group 1 is formed.

The left primary coil winding 11 includes a left primary coil winding skeleton 111 and a wire 112 . The left secondary low-voltage coil winding 12 includes a left secondary low-voltage coil winding skeleton 121 and a wire 122 , the left secondary low-voltage coil winding skeleton 121 is connected up and down, and the wire 122 is wound on the outer surface of the left secondary low-voltage coil winding skeleton 121 superior. The left secondary medium voltage wrap winding 13 includes a left secondary medium voltage wrap winding skeleton 131 and a wire 132, the left secondary medium voltage wrap winding skeleton 131 is connected up and down, and the wire 132 is wound around the left secondary medium voltage wrap winding skeleton 131 on the outer surface. The left secondary high-voltage coil winding 14 includes a left secondary high-voltage coil winding skeleton 141 and a wire 142 . The left secondary high-voltage coil winding skeleton 141 penetrates up and down. Each frame 111, 121, 131, 141 is made of hard insulating material, such as plastic. The two adjacent coil windings are fixed as a whole, for example, by correspondingly arranging raised portions and recessed portions on the skeleton, or by mechanical connection methods such as snap-fit, pin-hole fit, and the like.

The outer diameter of the left primary coil winding 11 is smaller than the inner diameter of the left secondary low voltage coil winding skeleton 121, the outer diameter of the left secondary low voltage coil winding 12 is smaller than the inner diameter of the left secondary medium voltage coil winding skeleton 131, and the left secondary The outer diameter of the medium-voltage coil winding 13 is smaller than the inner diameter of the left secondary high-voltage coil winding skeleton 141 , so that each coil winding can be nested layer by layer. An oil-immersed channel 7 that penetrates up and down is formed between two adjacent coil windings.

The right coil group 2 includes a right primary coil winding 21, a right secondary low voltage coil winding 22, a right secondary medium voltage coil winding 23 and a right secondary high voltage coil winding 24, a right primary coil winding 21, a right secondary coil The low-voltage wrap winding 22 , the right secondary medium-voltage wrap winding 23 and the right secondary high-voltage wrap winding 24 are nested from the inside to the outside, that is, the right secondary high-voltage wrap winding 24 is wrapped around the right secondary medium-voltage wrap winding 23 and connected as a whole, the right secondary medium-voltage coil wrap winding 23 wraps around the right secondary low-voltage coil wrap winding 22 and is connected as a whole, the right secondary low-voltage coil wrap winding 22 wraps around the right primary coil wrap winding 21 and is connected as a whole. The right wire wrap group 2 is formed after the wrapping windings are assembled together.

The right primary coil winding 21 includes a right primary coil winding skeleton 211 and a wire 212 . The right secondary low-voltage coil winding 22 includes a right secondary low-voltage coil winding skeleton 221 and a wire 222. The right secondary low-voltage coil winding skeleton 221 penetrates up and down, and the wire 222 is wound on the outer surface of the right secondary low-voltage coil winding skeleton 221. superior. The right secondary medium voltage wrap winding 23 includes a right secondary medium voltage wrap winding skeleton 231 and a wire 232. The right secondary medium voltage wrap winding skeleton 231 runs up and down, and the wire 232 is wound around the right secondary medium voltage wrap winding skeleton. 231 on. The right secondary high-voltage coil winding 24 includes a right secondary high-voltage coil winding skeleton 241 and a wire 242 . The right secondary high-voltage coil winding skeleton 241 penetrates up and down.

The outer diameter of the right primary coil group 21 is smaller than the inner diameter of the right secondary low-voltage coil winding skeleton 221, the outer diameter of the right secondary low-voltage coil winding 22 is smaller than the inner diameter of the right secondary medium-voltage coil winding skeleton 231, and the right secondary The outer diameter of the medium-voltage coil winding 23 is smaller than the inner diameter of the right secondary high-voltage coil winding skeleton 241, so that each coil winding can be nested in layers. An oil-immersed channel 7 that penetrates up and down is formed between two adjacent coil windings.

The magnetic core 3 is divided into two parts: an upper magnetic core 31 and a lower magnetic core 32, the upper magnetic core 31 is located above the lower magnetic core 32, and the upper magnetic core 31 and the lower magnetic core 32 are both U-shaped. The upper magnetic core 31 includes an upper horizontal portion 311 and two upper vertical portions 312 extending downward from both ends of the upper horizontal portion. The lower magnetic core 32 includes a lower horizontal portion 321 and two lower horizontal portions extending upward from both ends of the lower horizontal portion. The vertical part 322, the upper horizontal part 311 and the lower horizontal part 321 are parallel. The installation assembly includes a strap 4 , a fixing part 6 and a screw 5 . Both ends of the strapping band 4 are provided with fixing parts 6, and the screws 5 are connected with another fixing part 6 after passing through one fixing part 6, so that the strapping band 4 can form a closed annular body, and by tightening or loosening the screws to tighten or loosen the straps 4.

The two upper vertical parts 311 of the upper magnetic core 31 are respectively mounted downward on the bobbin 111 of the left primary coil winding and the bobbin 211 of the right primary coil winding; the two lower vertical parts 321 of the lower magnetic core 32 are respectively mounted upward Enter the skeleton 111 of the left primary coil winding and the skeleton 211 of the right primary coil winding; the outer surfaces of the left and right primary coil winding skeletons and the upper and lower horizontal parts of the upper and lower magnetic cores are bundled with the binding tape 4, and the screws are tightened. 5 and tighten the strap 4 to fix the upper and lower magnetic cores to the skeletons of the left and right primary coil windings, and make the two upper vertical parts 312 of the upper magnetic core and the two lower The vertical portions 322 are butted against each other, and thus form two vertical portions 33 . The upper horizontal portion 311 of the upper magnetic core is located above each coil winding, and the lower horizontal portion 321 of the lower magnetic core is located below each coil winding.

In the present embodiment, the left and right primary coil winding skeletons 111 and 211 are opened on the upper side, and the opening positions are the positions of the magnetic core loop installation and avoidance. The secondary low-voltage wire wrap winding, the secondary medium-voltage wire wrap winding and the secondary high-voltage wire wrap winding are annular closed structures penetrating up and down. The skeleton of the secondary low-voltage coil winding, the skeleton of the secondary medium-voltage coil winding, and the skeleton of the secondary high-voltage coil winding can be coaxial, and in the direction of the axis, the heights of each coil winding can be different. The upper end surface of the secondary low-voltage winding skeleton can be provided with arc-shaped flanges 123 and 223 extending outward in the radial direction of the skeleton. The flanges 123 and 223 can be pressed against the secondary medium-voltage winding skeleton 131 and 223 231 on the upper end face. The wire can be wire-covered wire or enameled wire, for example, the primary winding can be wound with wire-covered wire, and the secondary winding can be wound with enameled wire.

In this embodiment, the high-voltage wire package adopts a split-assembly structure to replace the existing multi-layer tightly wound insulating paper structure. Winding, secondary medium-voltage coil winding, secondary high-voltage coil winding, each winding can be made separately, and each winding is assembled from inner to outer layers of nested layers. Between the two adjacent coil windings, there is a gap for oil immersion, and the oil path is smooth, which can well solve the problems of impermeable oil immersion and air bubbles in the high-voltage coil. At the same time, due to the simple structure of each winding, each winding is wrapped with enameled wire or silk-covered wire on the skeleton, and the process is simple and suitable for mass production.

The above content is a further detailed description of the present application in conjunction with specific embodiments, and it cannot be considered that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field to which the present application pertains, some simple deductions or substitutions can also be made without departing from the concept of the present application.

Claims (12)

1. A wire wrap group, characterized in that it comprises at least two wire wrap windings, each described wire wrap winding is nested layer by layer from the inside to the outside, and the wire wrap winding includes a skeleton that runs through up and down and is wound around the described wire wrap. The wire on the outer surface of the skeleton; in the two adjacent coil windings, the skeleton of the coil winding located on the outer layer covers the coil winding located on the inner layer, and the skeleton of the coil winding located on the outer layer and the bobbin located in the inner layer An oil-immersed channel that penetrates up and down is formed between the skeletons of the wire wrap windings of the layers. 2 . The wire wrap group according to claim 1 , wherein among the two adjacent wire wrap windings, the skeleton of one wire wrap winding is provided with a protruding portion, and the other wire wrap winding is provided with a raised portion. The skeleton is provided with a concave part, and the convex part is matched with the concave part. 3. A coil group, characterized in that it includes at least two coil windings, each of which is nested from the inside to the outside, and the coil winding includes a skeleton that runs through up and down and is wound around the coil. The wire on the outer surface of the skeleton; in the two adjacent coil windings, the skeleton of the coil winding located on the outer layer covers the coil winding located on the inner layer. 4. A high-voltage wire pack, characterized in that it comprises a magnetic core and at least two wire pack groups according to claim 1 or 3, and the innermost wire pack winding of each of the wire pack groups covers the magnetic core. 5 . The high-voltage wire package according to claim 4 , wherein the magnetic core has at least two vertical parts that are parallel to each other, the vertical parts are in one-to-one correspondence with the wire package group, and each of the wires The innermost wire wrap winding of the wrap group wraps around the vertical portion. 6 . The high-voltage wire package according to claim 4 , wherein the magnetic core comprises an upper magnetic core and a lower magnetic core which are separately arranged, and the upper magnetic core has an upper horizontal part and two parts extending from the upper horizontal part. 7 . two upper vertical parts with ends extending downward, the lower magnetic core has a lower horizontal part and two lower vertical parts extending upward from both ends of the lower horizontal part, the upper magnetic core and the lower magnetic core The mounted components are integrally fixed, and the end faces of the two upper vertical parts are in close contact with the end faces of the two lower vertical parts respectively to form two vertical parts. There are two wire wrap groups, two The innermost coil windings of the coil group cover the two vertical portions respectively. 7 . The high-voltage wire package according to claim 6 , wherein the installation component comprises a strap, a fixing part and a screw, the upper magnetic core and the lower magnetic core are bundled together by the strap, and the strap Both ends of the screw are provided with the fixing parts, and the screws pass through one of the fixing parts and are threadedly connected with the other fixing part. 8. The high-voltage coil package according to claim 6, wherein each said coil package group comprises a primary coil package winding, a secondary low-voltage coil package winding, a secondary medium-voltage coil package winding, and a secondary high-voltage coil package winding, so The primary coil winding, the secondary low voltage coil winding, the secondary medium voltage coil winding and the secondary high voltage coil winding are nested layer by layer from the inside to the outside. 9 . The high-voltage wire package according to claim 8 , wherein the upper horizontal portion of the upper magnetic core is located above the wire package group, and the lower horizontal portion of the lower magnetic core is located at the bottom of the wire package group. 10 . below. 10 . The high-voltage wire package according to claim 8 , wherein the upper end surface of the bobbin of the secondary low-voltage wire package winding is provided with a flange extending radially outward of the bobbin. 11 . 11. A high-voltage generator, characterized in that it comprises the high-voltage wire package according to any one of claims 4-10. 12. An X-ray imaging system, characterized by comprising the high-voltage generator of claim 11.

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