CN215451326U - X-ray tube assembly - Google Patents

Abstract

The utility model provides an X-ray tube assembly. The X-ray tube assembly includes a metal housing; a metal housing; the upper end cover is fixedly arranged at one end of the metal shell; the lower end cover is fixedly arranged on one end, far away from the upper end cover, of the metal shell; the insulating seat is arranged in the metal shell, is cup-shaped, and is fixedly connected with the lower end cover at the bottom; the radiator is arranged in the insulating seat and is fixedly connected with the bottom of the insulating seat; a radiation window disposed within the metal housing; and the window flange is fixedly arranged on the outer wall of the metal shell, and the ray window is communicated with the window flange. The X-ray tube assembly provided by the utility model has the advantages of increasing radiation field, effectively solving the problem of radiation leakage and being environment-friendly.

Description

X-ray tube assembly

Technical Field

The utility model relates to the technical field of X-rays, in particular to an X-ray tube assembly.

Background

Conventional X-ray tube assemblies employ a beryllium side window X-ray tube with a stainless steel housing and lead skin for radiation shielding. The requirement of the vacuum insulation size between an inner cathode and an inner anode of the lateral beryllium window structure ray tube limits the radiation angle of X rays of the ray tube, and the vacuum insulation and the radiation angle cannot be considered; although the lead skin is as the excellent material of ray shielding, the mode of making shell, inside lining lead skin with stainless steel needs lead skin and metal casing to cooperate closely, because the lead skin texture is softer, difficult machine-shaping and easily fall the slag matter, this degree of difficulty that has just increased production has increased the risk of leaking the radiation simultaneously, because lead is the heavy metal, does not possess the environmental protection theory in addition.

Therefore, there is a need to provide a new X-ray tube assembly that solves the above technical problems.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an X-ray tube component structure used in the field of X-ray imaging, wherein an X-ray tube without a side beryllium window structure is used, and the size limitation of a flange structure of a side window of the X-ray tube on a radiation field is removed in a mode that the bottom end of an anode is fixed, so that the radiation field can be effectively increased; use high-quality lead brass, and add the shielding ware at filament connector and high-voltage line connection ware, effectively solve the problem of leaking the radiation promptly, accord with the environmental protection theory again.

To solve the above technical problem, the present invention provides an X-ray tube assembly comprising: a metal housing; the upper end cover is fixedly arranged at one end of the metal shell; the lower end cover is fixedly arranged on one end, far away from the upper end cover, of the metal shell; the insulating seat is arranged in the metal shell, is cup-shaped, and is fixedly connected with the lower end cover at the bottom; the radiator is arranged in the insulating seat and is fixedly connected with the bottom of the insulating seat; a radiation window disposed within the metal housing; the window flange is fixedly arranged on the outer wall of the metal shell, and the ray window is communicated with the window flange; a filament connector mounted on the upper end cap; a high voltage wire connector mounted on the upper end cap; the high-voltage wire guide pipe is fixed on the upper end cover and faces one side of the lower end cover, and the high-voltage wire guide pipe is made of insulating materials. The high-voltage contact is arranged at one end, far away from the upper end cover, in the high-voltage wire insulated conduit and is only electrically connected with the radiator; the X-ray tube is arranged in the metal shell, and the X-ray tube is fixedly installed on the end face, biased to the upper end cover, of the radiator.

Preferably, the radiation window is made of a material that is resistant to X-ray aging.

Preferably, the metal shell, the upper end cover, the lower end cover and the window flange are all made of brass.

Preferably, a first shielding device is arranged in the metal shell and fixedly connected with the upper end cover.

Preferably, a second shield is arranged in the high-voltage wire connector, and the second shield is fixed in the high-voltage wire connector.

Compared with the related art, the X-ray tube assembly provided by the utility model has the following beneficial effects:

the utility model provides an X-ray tube assembly, which abandons the form that the traditional X-ray tube assembly is fixed through a beryllium window flange at the side of an X-ray tube, but adopts the mode of fixedly installing the bottom end of an anode, so that the radiation field is not limited by the size of the flange structure of the window at the side of the X-ray tube, the maximum radiation field of 90 degrees can be realized, and the radiation field is more than one time larger than that of the traditional structure; the shielding devices are respectively added and used at the positions of the filament connector and the high-voltage wire connector, so that radiation leakage can be effectively avoided; the brass is used as the shell, so that the brass has hardness, a good radiation shielding effect and is more environment-friendly.

Drawings

Fig. 1 is a schematic structural diagram of an X-ray tube assembly according to a preferred embodiment of the present invention.

Reference numbers in the figures: 1. a metal housing; 2. an upper end cover; 3. a lower end cover; 4. a heat sink; 5. an insulating base; 6. a ray window; 7. a window flange; 8. a filament connector; 9. a high voltage wire connector; 10. a first shield; 11. a second shield; 12. a high-voltage line guide; 13. an X-ray tube; 14. high voltage contacts.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an X-ray tube assembly according to a preferred embodiment of the present invention. The X-ray tube assembly includes: a metal housing 1; the upper end cover 2 is fixedly arranged at one end of the metal shell 1; the lower end cover 3 is fixedly arranged on one end, far away from the upper end cover 2, of the metal shell 1; the insulating base 5 is arranged in the metal shell 1, the insulating base 5 is cup-shaped, and the bottom of the insulating base 5 is fixedly connected with the lower end cover 3; the radiator 4 is arranged in the insulating seat 5, the radiator 4 is fixedly connected with the bottom of the insulating seat 5, and the insulating seat 5 is used for fixing and positioning; a radiation window 6, wherein the radiation window 6 is arranged in the metal shell 1; the window flange 7 is fixedly arranged on the outer wall of the metal shell 1, the ray window 6 is communicated with the window flange 7, and the metal shell 1, the upper end cover 2, the lower end cover 3, the ray window 6 and the window flange 7 form a closed space; a filament connector 8, wherein the filament connector 8 is mounted on the upper end cover 2; the high-voltage wire connector 9 is mounted on the upper end cover 2, and the high-voltage wire connector 9 is mounted on the upper end cover 2; the high-voltage wire guide pipe 12 is fixed on the upper end cover and faces one side of the lower end cover; the X-ray tube 13 is arranged in the metal shell 1, the X-ray tube 13 is fixedly connected with one end face of the radiator 4 and is electrically connected with the radiator 4, and the other end face of the radiator 4 is fixedly connected in the insulating base 5; and the high-voltage contact 14 is arranged at one end, far away from the upper end cover, of the high-voltage wire insulated conduit 12, and the high-voltage contact 14 is only electrically connected with the radiator 4.

The radiation window 6 is made of a material which is resistant to X-ray aging, needs to have excellent mechanical properties, electrical insulation properties, irradiation resistance, high and low temperature resistance, wear resistance, and is transparent to microwaves.

The metal shell 1, the upper end cover 2, the lower end cover 3 and the window flange 7 are all made of brass.

Be provided with first shield 10 in the metal casing 1, first shield 10 and upper end cover 2 fixed connection, be provided with second shield 11 in the high voltage line connection 9, first shield 10 and second shield 11 are used for preventing to leak the radiation.

The X-ray tube component of the traditional structure uses the X-ray tube of a side beryllium window structure, the fixing mode of the X-ray tube is that the X-ray tube is installed and fixed through a flange on the side beryllium window, and the X-ray tube 13 used by the X-ray tube component of the utility model does not have the side beryllium window structure, so the fixing mode is different from the fixing mode of the X-ray tube in the traditional X-ray tube component, namely, the mode of fixedly installing the bottom end of the anode is adopted, and meanwhile, because the beryllium window structure is not arranged, the radiation field can not be limited by the size of the beryllium window structure, the maximum radiation field of 90 degrees can be realized, and the maximum radiation field is more than one time larger than that of the traditional structure.

The X-ray tube assembly with the traditional structure has the defects of X-ray shielding, no protection is carried out at the connection part of the filament and the connection part of the high-voltage guide tube, so that the ray slightly leaks from the connection part, and the first shielding device 10 and the second shielding device 11 are respectively added and used at the positions of the filament connector 8 and the high-voltage wire connector 9, so that the radiation leakage can be effectively avoided; the protection of traditional structure at the high pressure position adopts the inside protection of subassembly, can lead to impurity to float in insulating oil like this and lead to high pressure scheduling problem of striking sparks, and utility model, in high-voltage line connector 9 department, subassembly externally mounted protection shield promptly, the protecting effect is the same, has nevertheless avoided the high pressure scheduling problem of striking sparks that above reason leads to.

The utility model uses brass with proper thickness as the shell, which has hardness and good radiation shielding effect, and is more environment-friendly compared with the traditional lead shielding.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. An X-ray tube assembly, characterized in that the X-ray tube assembly comprises:

a metal housing;

the upper end cover is fixedly arranged at one end of the metal shell;

the lower end cover is fixedly arranged on one end, far away from the upper end cover, of the metal shell;

the insulating seat is arranged in the metal shell, is cup-shaped, and is fixedly connected with the lower end cover at the bottom;

the radiator is arranged in the insulating seat and is fixedly connected with the bottom of the insulating seat;

a radiation window disposed within the metal housing;

the window flange is fixedly arranged on the outer wall of the metal shell, and the ray window is communicated with the window flange;

a filament connector mounted on the upper end cap;

a high voltage wire connector mounted on the upper end cap;

the high-voltage wire guide pipe is fixed on the upper end cover and faces one side of the lower end cover, and the high-voltage wire guide pipe is made of insulating materials;

the high-voltage contact is arranged at one end, far away from the upper end cover, in the high-voltage wire insulated conduit and is only electrically connected with the radiator;

the X-ray tube is arranged in the metal shell, and the X-ray tube is fixedly installed on the end face, biased to the upper end cover, of the radiator.

2. The X-ray tube assembly of claim 1, wherein the radiation window is made of a material that is resistant to X-ray degradation.

3. The X-ray tube assembly of claim 1, wherein the metal housing, the upper end cap, the lower end cap, and the window flange are each brass.

4. The X-ray tube assembly of claim 1, wherein a first shield is disposed within the metal housing and fixedly coupled to the upper end cap.

5. The X-ray tube assembly of claim 1, wherein a second shield is disposed within the high voltage wire connector, the second shield being secured within the high voltage wire connector.

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