CN220367882U

CN220367882U - X-ray tube and medical imaging device

Info

Publication number: CN220367882U
Application number: CN202323451576.3U
Authority: CN
Inventors: 田永杰
Original assignee: Suzhou Yimu Wanxiang Technology Co ltd
Current assignee: Suzhou Yimu Wanxiang Technology Co ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-01-19
Anticipated expiration: 2033-12-18

Abstract

The utility model provides an X-ray tube and medical imaging equipment, and belongs to the field of medical CT. The X-ray tube includes a die, a first shielding assembly, and a second shielding assembly. One end of the tube core is provided with a cathode, and the other end of the tube core is provided with an anode; the first protection component is sleeved on the tube core, is positioned at one end of the tube core, which is provided with the anode, and extends towards one end of the tube core, which is provided with the cathode; the second protection component is positioned at one end of the tube core, provided with the cathode, and is connected with the first protection component; wherein the first shielding component and the second shielding component are capable of shielding X-rays generated within the die.

Description

X-ray tube and medical imaging device

Technical Field

The utility model relates to the field of medical CT, in particular to an X-ray tube and medical imaging equipment.

Background

At present, only a part of X-rays generated by an X-ray source are fully utilized, and other parts of rays need to be isolated and protected so as to prevent non-irradiated parts from being unnecessarily irradiated. In the related art, in order to reduce the problem of leakage rays of a non-irradiated part, a lead protection layer is added outside the bulb tube core, and in order to further reduce the X-rays reflected by an anode target, lead needs to be pasted on one side of a shell of the tube core, which is positioned at a cathode, to protect, and leakage rays are reduced, and the lead pasting area is larger, so that the weight of the bulb tube is increased.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the utility model proposes an X-ray tube.

A second aspect of the utility model proposes a medical imaging device.

In view of this, a first aspect of the present utility model provides an X-ray tube comprising a die, a first shielding assembly, and a second shielding assembly. One end of the tube core is provided with a cathode, and the other end of the tube core is provided with an anode; the first protection component is sleeved on the tube core, is positioned at one end of the tube core, which is provided with the anode, and extends towards one end of the tube core, which is provided with the cathode; the second protection component is positioned at one end of the tube core, provided with the cathode, and is connected with the first protection component; wherein the first shielding component and the second shielding component are capable of shielding X-rays generated within the die.

In this aspect, an X-ray tube includes a die, a first shielding assembly, and a second shielding assembly. One end of the tube core is provided with a cathode, the other end of the tube core is provided with an anode, and the cathode and the anode are arranged on the tube core, so that X rays can be generated in the tube core, and an anode target at the anode position can reflect the generated X rays, so that the X rays generated by the tube core can be conveniently used for detection work. The first protection component is sleeved on the tube core and is positioned at one end of the tube core, which is provided with the anode, and extends towards one end of the tube core, which is provided with the cathode, so that the first protection component is installed and fixed, and the first protection component can isolate and protect X rays except for detection in the tube core, and prevent unused X rays from leaking out of the tube core. The second protection component is located the one end that the die was provided with the negative pole, and is connected with first protection component to realize the installation and the fixed to the second protection component, make the second protection component can keep apart the protection to the ray of the negative pole end of die. This application is through setting up the second protection subassembly at the cathode terminal of die, and first protection subassembly and second protection subassembly are the lead layer, first protection subassembly and second protection subassembly can shelter from the X-ray that produces in the die, when producing the ray in the die, most X-ray is used for detecting the use, when partial X-ray is reflected the cathode side of die, the second protection subassembly can prevent that X-ray from leaking from the cathode side, compare the mode that is located the one end of cathode on the protective housing of die outside and paste plumbous protection, this application is installed the second protection subassembly and is leaked the protection of ray in the cathode side of die, can reduce the usable floor area of lead layer, and then can reduce the weight of X-ray tube, thereby realize X-ray tube's lightweight design.

In addition, the X-ray tube provided by the utility model in the technical scheme can also have the following additional technical characteristics:

in one aspect of the utility model, optionally, the second shield assembly includes a first shield member and a first insulating housing. One end of the first protection component corresponds to the cathode and is connected with the first protection component; the first insulating case is disposed along an outer wall of the first shielding member.

In this aspect, the second shielding assembly includes a first shielding member and a first insulating case. One end of the first protection component corresponds to the cathode and is connected with the first protection component so as to realize the installation and fixation of the first protection component, and the stability of the first protection component after installation is improved, so that the first protection component can protect the cathode end from leaking rays, and the X-rays reflected by the anode target at the anode position are prevented from leaking at the cathode end. The first insulating shell is arranged along the outer wall of the first protection component so as to realize the installation and fixation of the first insulating shell, and the first insulating shell is arranged so as to prevent other components outside the second protection component from high-voltage discharge, the first insulating shell can effectively isolate high voltage, avoid electric shock accidents and ensure the safety of operators and equipment. The first insulating case can prevent the influence of high voltage on the surrounding environment, such as an electric field, a magnetic field, etc., thereby ensuring the stable operation of the apparatus. The first insulating shell has better weather resistance and corrosion resistance, can maintain the performance and the shape for a long time, and prolongs the service life of equipment. The first insulating case can effectively reduce interference and malfunction due to high voltage discharge, and improve reliability and stability of the device.

In one aspect of the utility model, optionally, the first guard member has a first cavity, and at least a portion of the end of the die provided with the cathode is located in the first cavity.

In this technical scheme, first protection component has first cavity, and the one end that at least part die was provided with the negative pole is located first cavity, through setting up first cavity, and first protection component and the cathode end nest of die set up to install and fix first protection component, make the connection between second protection component and die and the first protection component compacter, and through setting up first cavity, can then install the one end at the die of different length, promote the commonality of second protection component.

In one aspect of the utility model, optionally, the X-ray tube further comprises a wiring assembly. The wiring assembly is arranged at one end of the second protection assembly far away from the first protection assembly.

In this solution, the X-ray tube further comprises a wiring assembly. The wiring subassembly sets up in the one end that first protection subassembly was kept away from to the second protection subassembly, through setting up the wiring subassembly, and then is convenient for install the filament power supply line of the cathode side of die. And, set up the wiring subassembly and can pass the cathode end of bulb with the filament power supply line more easily to be connected to the filament transformer, make the installation more convenient. The wiring assembly can provide a more stable structural support that prevents the filament supply wires from shifting or breaking under high temperature operating conditions, thereby extending the service life of the bulb. Since the filament supply wires are usually made of a high melting point metallic material, a large amount of heat is generated during operation. The design of the wire passing port can help to dissipate heat, so that the temperature stability of the bulb tube is kept, and the working efficiency of the bulb tube is improved. The wiring assembly can improve the safety of the bulb. Because the cathode side is provided with the wire passing port, workers can more easily contact the internal structure of the bulb tube in the process of installation or maintenance, and therefore the operation risk is reduced.

In one aspect of the present utility model, optionally, the wiring assembly includes a first wiring portion and a second wiring portion. One end of the first wiring part is communicated with the second protection component; one end of the second wiring part is communicated with the other end of the first wiring part and forms an included angle with the first wiring part.

In this technical solution, the wiring assembly includes a first wiring portion and a second wiring portion. One end of the first wiring part is communicated with the second protection component so as to realize the installation and the fixation of the first wiring part. One end of the second wiring part is communicated with the other end of the first wiring part so as to realize the installation and fixation of the second wiring part. The first wiring part, the second wiring part and the second protection component are communicated, so that the filament power supply line is convenient to install, the power supply line is convenient to supply power for the filament stably, and the normal work of the X-ray tube is guaranteed. The second wiring portion has the contained angle with first wiring portion to the direction that the line mouth was crossed to the line mouth that makes second wiring portion keep away from first wiring portion one end is different with the direction of the negative pole end of die, thereby can avoid reflecting the ray of negative pole end to leak from the position of crossing the line mouth, avoid the ray to leak along the filament power supply line, further protect leaking the ray.

In one aspect of the utility model, optionally, the first shielding assembly includes a second insulating housing and a second shielding member. The second insulating shell is provided with a second cavity and a first ray port, and the tube core is positioned in the second cavity; the second protection part is provided with the second ray mouth, and the second protection part sets up along the outer wall circumference of second insulating shell, and first ray mouth corresponds with the second ray mouth.

In this aspect, the first shielding assembly includes a second insulating case and a second shielding member. The second insulating shell is provided with a second cavity and a first ray port, and the tube core is positioned in the second cavity so as to realize the installation of the second insulating shell and the tube core, and X rays generated in the tube core can be transmitted outwards through the first ray port for detection. The second insulating shell is arranged outside the tube core, so that the metal part of the tube core can be protected from being interfered by an external electric field, and meanwhile, the metal part of the tube core can be prevented from being directly contacted with other metal parts, and the problems of short circuit, electric leakage and the like are avoided. The second insulating shell can also serve as a mechanical support and fixing structure for the die, so that the die can maintain a stable position in the bulb and bear certain mechanical stress. Effectively isolating the die from the external environment and reducing heat transfer, thereby maintaining the operating temperature of the die stable. Due to the arrangement of the second insulating shell, workers cannot easily touch the metal part inside when operating the bulb, and therefore safety risks such as electric shock are reduced. The second protection part is provided with the second ray mouth, and the second protection part sets up along the outer wall circumference of second insulating shell, and first ray mouth is corresponding with the second ray mouth to realize the installation and the fixed to the second protection part, make the X-ray in the die can pass through first ray mouth and second ray mouth and transmit the external world and detect the use, make the second protection part can shelter from the ray of the pipe core except first ray mouth and second ray mouth part, thereby can avoid the X-ray leakage.

In one aspect of the present utility model, optionally, at least a portion of the end of the first protection component away from the anode is sleeved on the end of the second protection component located at the cathode.

In this technical scheme, the one end cover that at least part first protection subassembly kept away from positive pole is located the one end that second protection subassembly was located the negative pole to make second protection subassembly can overlap with first protection subassembly part after the installation, can increase the area of contact between first protection subassembly and the second protection subassembly, improve the stability of connection, make them be less likely to be separated by vibrations or external force, improve the joint strength between the part, make whole structure firm more. The overlapping part of the first protective component and the second protective component can better seal the gap between the two components, and the X-ray emitted from the anode target to the cathode end is prevented from leaking from the joint.

In one aspect of the present utility model, optionally, the X-ray tube further comprises a shield and a third shield assembly. The protective cover is provided with a third cavity, and the tube core, the first protective component and the second protective component are positioned in the third cavity; the third protection component is arranged on the inner wall or the outer wall of the protection cover and is positioned on one side of the cathode close to the tube core.

In this solution, the X-ray tube further comprises a protective cover and a third protective assembly. The protection casing is provided with the third cavity, and tube core, first protection component and second protection component are located the third cavity to realize the installation to the shield, make the protection casing can protect the tube core of inside protection not receive external environment's influence, also can improve the durability and the stability of tube core simultaneously. The tube core is prevented from being impacted, extruded, worn and the like by external force, and the service life of the bulb tube is prolonged. The influence of external temperature on the tube core is isolated, the temperature of the tube core is kept stable, and the performance of the tube core is improved.

In one aspect of the present utility model, optionally, the second protection component is clamped or screwed with the first protection component.

In this technical scheme, the joint between second protection subassembly and the first protection subassembly realizes the installation between first protection subassembly and the second protection subassembly, and the mode of joint is convenient for dismantle and install the second protection subassembly. Threaded connection between second protection component and the first protection component, threaded connection's mode can promote the stability after the installation of second protection component, is connected through adopting joint or screw thread mode between with second protection component and the first protection component to be convenient for change and maintain the second protection component, promote convenience and the installation effectiveness of use.

A second aspect of the utility model provides a medical imaging device comprising an X-ray tube according to any of the above aspects. Therefore, the medical imaging device has all the advantages of an X-ray tube, which are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 shows a schematic structural view of an X-ray tube according to an embodiment of the present utility model, with a second shielding assembly mounted thereto;

FIG. 2 shows a schematic diagram of the structure of a die according to one embodiment of the utility model;

fig. 3 shows a schematic structural view of an X-ray tube without a second shielding assembly mounted thereto according to an embodiment of the present utility model;

figure 4 shows a schematic structural view of a second guard assembly according to one embodiment of the utility model;

fig. 5 shows a schematic structural view of an X-ray tube according to an embodiment of the utility model.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 5 is:

100X-ray tube, 110 die, 120 cathode, 130 anode, 140 first shielding assembly, 142 second insulating shell, 144 second shielding member, 146 second cavity, 148 first port, 149 second port, 150 second shielding assembly, 152 first shielding member, 154 first insulating shell, 156 first cavity, 160 wiring assembly, 162 first wiring portion, 164 second wiring portion, 170 shield, 180 third shielding assembly, 190 third cavity.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

An X-ray tube 100 and a medical imaging device according to some embodiments of the utility model are described below with reference to fig. 1 to 5.

As shown in fig. 1 and 2, an X-ray tube 100 is provided in this embodiment, including a die 110, a first shielding assembly 140, and a second shielding assembly 150. One end of the die 110 is provided with a cathode 120, and the other end of the die 110 is provided with an anode 130; the first protection component 140 is sleeved on the die 110, is positioned at one end of the die 110 provided with the anode 130, and extends towards one end of the die 110 provided with the cathode 120; the second protection component 150 is located at the end of the die 110 where the cathode 120 is located, and is connected to the first protection component 140; wherein the first shielding assembly 140 and the second shielding assembly 150 are capable of shielding X-rays generated within the die 110.

In this embodiment, the X-ray tube 100 includes a die 110, a first shielding assembly 140, and a second shielding assembly 150. One end of the die 110 is provided with a cathode 120, the other end of the die 110 is provided with an anode 130, and X-rays can be generated at the die 110 by providing the cathode 120 and the anode 130 on the die 110, so that an anode target can reflect the generated X-rays, thereby facilitating detection work by using the X-rays generated by the die 110. The first protection component 140 is sleeved on the die 110, is located at one end of the die 110 where the anode 130 is located, and extends towards one end of the die 110 where the cathode 120 is located, so that the first protection component 140 can be installed and fixed, and therefore the first protection component 140 can isolate and protect X-rays except for detection in the die 110, and unused X-rays are prevented from leaking out of the die 110. The second protection component 150 is located at the end of the die 110 where the cathode 120 is located, and is connected to the first protection component 140, so as to mount and fix the second protection component 150, so that the second protection component 150 can isolate and protect the cathode end of the die 110 from rays. As shown in fig. 1 and fig. 3, this application sets up the second protection subassembly 150 through the cathode end at die 110, and first protection subassembly 140 and second protection subassembly 150 are the lead layer, first protection subassembly 140 and second protection subassembly 150 can shelter from the X-ray that produces in the die 110, when producing the ray in die 110, most X-rays are used for detecting the use, when partial X-ray is reflected to the cathode side of die 110, second protection subassembly 150 can prevent that the X-ray from leaking from the cathode side, compare the mode that is located the one end of cathode 120 on the protective housing of die 110 outside and paste plumbous protection, this application is with the protection of second protection subassembly 150 installation at the cathode side of die 110 and leak the ray, can reduce the usable floor area of lead layer, and then can reduce the weight of X-ray tube 100, thereby realize the lightweight design of X-ray tube 100.

Specifically, the first protection component 140 and the second protection component 150 are provided with metal lead, and through the arrangement of the metal lead, the X-rays in the bulb tube can be further shielded, so that the leakage of the X-rays is avoided.

Specifically, the second protection member 144 is connected with the power supply member of the cathode terminal at an equipotential, thereby reducing the risk of electric shock and electric shock.

Specifically, through set up the mode that the second protection subassembly 150 protected the ray that reflects to the cathode tip at the cathode tip of die 110, compare and be located the one end of cathode 120 on the outside protective housing of die 110 and paste plumbous mode of protection for the position that protects the ray of cathode tip is nearer to the main ray mouth, because paste plumbous guard position is far away from the main ray mouth, then paste plumbous area and be greater, lead to the weight of bulb more, consequently, the position of the protection of this application is nearer to the main ray mouth, thereby can reduce the plumbous weight of subsides and paste plumbous area, and then reduce the weight of X ray tube 100.

Specifically, the second protection component 150 is disposed at the cathode end of the die 110 to protect the cathode end from leaked radiation, and compared with the lead pasting mode performed on the outer shell of the X-ray tube 100, the lead pasting device is relatively simple in structural assembly, and complex processes and risks such as lead pasting on the outer shell of the X-ray tube 100 can be reduced.

Specifically, one end of the tube core 110 is provided with a cathode 120, the other end of the tube core 110 is provided with an anode 130, a filament is arranged at the position of the cathode 120, after the filament is electrified, electrons are generated on the cathode 120 by the filament, the electrons are accelerated to strike the anode 130 under the action of an electric field, and when striking the anode 130, the electrons interact with atoms in the material of the anode 130, so that X-rays are generated.

The present embodiment provides an X-ray tube 100, which further includes the following technical features in addition to the technical features of the above-described embodiments.

As shown in fig. 1 and 4, the second shield assembly 150 includes a first shield member 152 and a first insulating housing 154. One end of the first shielding member 152 corresponds to the cathode 120 and is connected to the first shielding assembly 140; the first insulating case 154 is disposed along an outer wall of the first shielding member 152.

In this embodiment, the second shield assembly 150 includes a first shield member 152 and a first insulating housing 154. One end of the first shielding component 152 corresponds to the cathode 120 and is connected with the first shielding component 140, so that the first shielding component 152 is installed and fixed, the stability of the first shielding component 152 after being installed is improved, the first shielding component 152 can shield the cathode end from leakage rays, and the X-rays reflected by the anode target are prevented from leaking at the position of the cathode end. The first insulating case 154 is disposed along the outer wall of the first protection component 152, so as to mount and fix the first insulating case 154, and by disposing the first insulating case 154, it is possible to avoid other components outside the second protection component 150 from performing high-voltage discharge on the first insulating case 154, and the first insulating case 154 can effectively isolate high voltage, thereby avoiding electric shock accidents and ensuring safety of operators and equipment. The first insulating case 154 may prevent an influence of a high voltage on the surrounding environment, such as an electric field, a magnetic field, etc., thereby ensuring stable operation of the apparatus. The first insulating case 154 has superior weather resistance and corrosion resistance, and can maintain its performance and shape for a long time, extending the service life of the apparatus. The first insulating case 154 may effectively reduce interference and malfunction due to high voltage discharge, and improve reliability and stability of the apparatus.

Specifically, the first shielding member 152 is made of metallic lead so that the drain ray of the cathode terminal can be shielded.

As shown in fig. 1 and 4, the first guard member 152 has a first cavity 156, and at least a portion of the die 110 at the end where the cathode 120 is disposed is located within the first cavity 156.

In this embodiment, the first guard member 152 has a first cavity 156, at least a portion of the end of the die 110 provided with the cathode 120 is located in the first cavity 156, by providing the first cavity 156, the first guard member 152 is nested with the cathode end of the die 110, so as to mount and fix the first guard member 152, so that the connection between the second guard assembly 150 and the die 110 and the first guard assembly 140 is more compact, and by providing the first cavity 156, the second guard assembly 150 can be mounted at one end of the die 110 with different lengths, thereby improving the versatility of the second guard assembly 150.

Specifically, the first protection component 152 has a first opening, and one end with the first opening can be connected with the cathode end in a nested manner, and the first opening is in communication with the first cavity 156, that is, one end of the first protection component 152 is in an open design, and the other end is in a sealed design.

Specifically, the first guard member 152 is in the shape of a cylindrical lead bowl.

As shown in fig. 1 and 4, the X-ray tube 100 further includes a wiring assembly 160. The wiring assembly 160 is disposed at an end of the second protection assembly 150 away from the first protection assembly 140.

In this embodiment, the X-ray tube 100 further includes a wiring assembly 160. The wiring assembly 160 is disposed at an end of the second protection assembly 150 away from the first protection assembly 140, and the wiring assembly 160 is disposed, so as to facilitate installation of the filament power supply line on the cathode side of the die 110. Also, the provision of the wiring assembly 160 allows for easier threading of the filament supply wire through the cathode end of the bulb and onto the filament transformer, making the installation process more convenient. The wiring assembly 160 may provide a more stable structural support that prevents the filament supply wires from shifting or breaking under high temperature operating conditions, thereby extending the useful life of the bulb. Since the filament supply wires are usually made of a high melting point metallic material, a large amount of heat is generated during operation. The design of the wire passing port can help to dissipate heat, so that the temperature stability of the bulb tube is kept, and the working efficiency of the bulb tube is improved. The wiring assembly 160 may improve the safety of the bulb. Because the cathode side is provided with the wire passing port, workers can more easily contact the internal structure of the bulb tube in the process of installation or maintenance, and therefore the operation risk is reduced.

As shown in fig. 1 and 4, the wiring assembly 160 includes a first wiring portion 162 and a second wiring portion 164. One end of the first wire connection part 162 is communicated with the second protection component 150; one end of the second connection portion 164 is connected to the other end of the first connection portion 162, and has an included angle with the first connection portion 162.

In this embodiment, the wiring assembly 160 includes a first wiring portion 162 and a second wiring portion 164. One end of the first wire connection part 162 communicates with the second shielding assembly 150 to enable the mounting and fixing of the first wire connection part 162. One end of the second wire connection portion 164 communicates with the other end of the first wire connection portion 162 to enable mounting and fixing of the second wire connection portion 164. The first connection portion 162, the second connection portion 164 and the second protection assembly 150 are communicated, so that the filament power supply line is convenient to install, the power supply line is convenient to stably supply power to the filament, and normal operation of the X-ray tube 100 is ensured. The second wiring portion 164 has an included angle with the first wiring portion 162, so that a direction of a wire passing opening of the second wiring portion 164 far away from one end of the first wiring portion 162 is different from a direction of a cathode end of the tube core 110, thereby avoiding leakage of rays reflected to the cathode end from the position of the wire passing opening, avoiding leakage of rays along a filament power supply line, and further protecting against leakage rays.

Specifically, the first and second wire connection portions 162 and 164 are L-shaped therebetween, so that leakage of X-rays from the position of the wire passing opening can be avoided.

As shown in fig. 1 and 3, the first shielding assembly 140 includes a second insulating case 142 and a second shielding member 144. The second insulating housing 142 has a second cavity 146 and a first radiation port 148, and the die 110 is located within the second cavity 146; the second shielding member 144 is provided with a second radiation port 149, the second shielding member 144 is circumferentially disposed along the outer wall of the second insulating case 142, and the first radiation port 148 corresponds to the second radiation port 149.

In this embodiment, the first shielding assembly 140 includes a second insulating housing 142 and a second shielding member 144. The second insulating housing 142 has a second cavity 146 and a first radiation port 148, and the die 110 is positioned within the second cavity 146 to enable mounting of the second insulating housing 142 and the die 110 such that X-rays generated within the die 110 may be detected by transmission out through the first radiation port 148. The second insulating case 142 is disposed outside the die 110 to protect the metal portion of the die 110 from the external electric field, and to prevent the metal portion of the die 110 from directly contacting other metal portions, thereby avoiding the problems of short circuit or leakage. The second insulating housing 142 may also serve as a mechanical support and mounting structure for the die 110, maintaining the die 110 in a stable position within the bulb and subjected to certain mechanical stresses. Effectively isolating die 110 from the external environment, reducing heat transfer and thus maintaining the operating temperature of die 110 stable. Due to the provision of the second insulating case 142, a worker is not likely to contact the inner metal portion when operating the bulb, thereby reducing safety risks such as electric shock. The second shielding member 144 is provided with a second radiation port 149, and the second shielding member 144 is disposed along the outer wall circumference of the second insulating case 142, and the first radiation port 148 corresponds to the second radiation port 149, so that the second shielding member 144 is mounted and fixed, and X-rays in the die 110 can be transmitted to the outside through the first radiation port 148 and the second radiation port 149 for detection, so that the second shielding member 144 can shield rays of a portion of the die 110 except the first radiation port 148 and the second radiation port 149, thereby avoiding X-ray leakage.

Specifically, the first insulating case 154 and the second insulating case 142 are each an insulating material.

Specifically, the second shielding member 144 is made of metallic lead so that the drain ray of the cathode terminal can be shielded.

As shown in fig. 1, at least a portion of the first protection component 140 is sleeved at an end of the second protection component 150 away from the anode 130 and located at an end of the cathode 120.

In this embodiment, at least a portion of the end of the first protection component 140 away from the anode 130 is sleeved on the end of the second protection component 150 located at the cathode 120, so that the second protection component 150 can be partially overlapped with the first protection component 140 after being installed, the contact area between the first protection component 140 and the second protection component 150 can be increased, the stability of connection can be improved, so that they are less likely to be separated by vibration or external force, the connection strength between components can be improved, and the whole structure is stronger. The overlapping portions of the first shielding assembly 140 and the second shielding assembly 150 can better seal the gap between the two components, avoiding leakage of X-rays emitted from the anode target to the cathode end from the joint.

As shown in fig. 1 and 5, the X-ray tube 100 further includes a shield 170 and a third shield assembly 180. The shield 170 is provided with a third cavity 190, and the die 110, the first shield assembly 140, and the second shield assembly 150 are positioned within the third cavity 190; the third shielding assembly 180 is disposed on an inner or outer wall of the shield 170 and is located on a side of the cathode 120 adjacent to the die 110.

In this embodiment, the X-ray tube 100 further includes a shield 170 and a third shield assembly 180. The protective cover 170 is provided with a third cavity 190, and the die 110, the first protective component 140 and the second protective component 150 are located in the third cavity 190, so that the protective cover 170 is installed, the protective cover 170 can protect the die 110, the die 110 inside is protected from the external environment, and meanwhile the durability and the stability of the die 110 can be improved. The tube core 110 is prevented from being impacted, extruded, worn by external force, and the service life of the bulb tube is prolonged. The influence of external temperature on the die 110 is isolated, the temperature of the die 110 is kept stable, and the performance of the die 110 is improved.

Specifically, the third shielding assembly 180 is disposed on the inner wall of the protective cover 170 and is located on the side of the cathode 120 near the die 110, so that the radiation at the cathode end can be further shielded.

Specifically, the third shielding assembly 180 is disposed on the outer wall of the protective cover 170 and is located on the side of the cathode 120 near the die 110, so that the radiation at the cathode end can be further shielded.

The second protection component 150 is clamped or screwed with the first protection component 140.

In this embodiment, the second protection component 150 is clamped with the first protection component 140, so that the first protection component 140 and the second protection component 150 are installed, and the second protection component 150 is convenient to detach and install in a clamping manner. The second protection component 150 and the first protection component 140 are connected through screw threads, the stability of the second protection component 150 after being installed can be improved through screw threads, and the second protection component 150 and the first protection component 140 are connected through clamping or screw threads, so that the second protection component 150 is replaced and maintained, and the convenience and the installation efficiency of use are improved.

Specifically, the second protection component 150 is connected to the first protection component 140 by a clamping manner.

Specifically, the second protection component 150 is connected with the first protection component 140 in a threaded connection manner.

In some embodiments of the present application, a medical imaging apparatus is provided, comprising an X-ray tube 100 in any of the embodiments described above. Therefore, the medical imaging device has all the advantages of the X-ray tube 100, which are not described in detail herein.

In particular, the medical imaging device is an X-ray machine or a CT scanner.

In the claims, specification and drawings of the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present utility model and making the description process easier, and not for the purpose of indicating or implying that the device or element in question must have the particular orientation described, be constructed and operated in the particular orientation, and therefore such description should not be construed as limiting the present utility model; the terms "connected," "mounted," "secured," and the like are to be construed broadly, and may be, for example, a fixed connection between a plurality of objects, a removable connection between a plurality of objects, or an integral connection; the objects may be directly connected to each other or indirectly connected to each other through an intermediate medium. The specific meaning of the terms in the present utility model can be understood in detail from the above data by those of ordinary skill in the art.

In the claims, specification, and drawings of the present utility model, the descriptions of terms "one embodiment," "some embodiments," "particular embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the claims, specification and drawings of the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An X-ray tube, comprising:

a tube core, wherein one end of the tube core is provided with a cathode, and the other end of the tube core is provided with an anode;

the first protection component is sleeved on the tube core, is positioned at one end of the tube core, provided with the anode, and extends towards one end of the tube core, provided with the cathode;

the second protection component is positioned at one end of the tube core, provided with the cathode, and is connected with the first protection component;

wherein the first and second shielding assemblies are capable of shielding X-rays generated within the die.

2. The X-ray tube of claim 1, wherein the second shielding assembly comprises:

a first shielding member having one end corresponding to the cathode and connected to the first shielding member;

and the first insulating shell is arranged along the outer wall of the first protection component.

3. The X-ray tube of claim 2, wherein the first shielding member has a first cavity, at least a portion of the die having an end provided with the cathode located within the first cavity.

4. The X-ray tube of claim 1, further comprising:

the wiring assembly is arranged at one end, far away from the first protection assembly, of the second protection assembly.

5. The X-ray tube of claim 4, wherein the wiring assembly comprises:

one end of the first wiring part is communicated with the second protection component;

and one end of the second wiring part is communicated with the other end of the first wiring part, and an included angle is formed between the second wiring part and the first wiring part.

6. The X-ray tube of claim 1, wherein the first shielding assembly comprises:

a second insulating housing having a second cavity and a first radiation port, the die being located within the second cavity;

the second protection part is provided with a second ray port, the second protection part is arranged along the circumferential direction of the outer wall of the second insulating shell, and the first ray port corresponds to the second ray port.

7. The X-ray tube of any one of claims 1-6, wherein at least a portion of an end of the first shielding assembly remote from the anode is sleeved on an end of the second shielding assembly at the cathode.

8. The X-ray tube according to any one of claims 1 to 6, further comprising:

the protective cover is provided with a third cavity, and the tube core, the first protective component and the second protective component are positioned in the third cavity;

and the third protection component is arranged on the inner wall or the outer wall of the protective cover and is positioned on one side of the cathode close to the tube core.

9. The X-ray tube of any one of claims 1-6, wherein the second shielding assembly is clamped or threaded with the first shielding assembly.

10. A medical imaging device comprising an X-ray tube according to any one of claims 1 to 9.