Anode assembly for X-ray tube, X-ray tube and CT equipment

Abstract

The invention discloses an anode assembly for an X-ray tube, the X-ray tube and CT equipment. An anode assembly for an X-ray tube, comprising: an anode bearing provided to be rotatable; the driving mechanism comprises a rotor, the rotor is arranged on the anode bearing in a sleeving mode, the driving mechanism drives the anode bearing to rotate through rotation of the rotor, and a first rotating magnetic field is generated under the condition that the rotor rotates; the rotor is sleeved with the detection coil, the detection coil and the rotor are coaxially arranged, and the detection coil is located in a first rotating magnetic field; and the response element is electrically connected with the detection coil, and the detection coil converts a magnetic field signal of the first rotating magnetic field into an electric signal and transmits the electric signal to the response element. The detection coil can convert a magnetic field signal of the first rotating magnetic field of the rotor into an electric signal and transmit the electric signal to the response element, so that the rotation condition of the anode bearing driven by the rotor to rotate can be reflected through the response element. Therefore, an operator can find that the anode bearing is abnormal at the initial stage, and repair and maintenance are facilitated.

Description

Technical Field

[0001] The present application relates to the field of manufacturing anode components of X-ray tubes, and in particular to anode components for X-ray tubes, X-ray tubes and CT equipment. Background Art

[0002] CT equipment is the most widely used medical testing equipment in the medical industry. It can emit highly penetrating X-rays through the X-ray tube inside the machine. After the rays pass through the part to be tested, the equipment reversely calculates and restores the image based on the attenuation of the detected rays. In this way, doctors can obtain abnormal test results of patients in a short time without surgery.

[0003] After the X-ray tube is installed, the anode assembly is wrapped in a thick lead-clad metal shell. Without additional sensor equipment to detect the rotation of the anode, it is difficult to detect bearing abnormalities without opening the tube sleeve. Usually, it will not be noticed until the bearing is stuck or the whole body is abnormally heated. But when this happens, the anode of the tube core has been damaged and there is no possibility of saving or repairing it. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides an anode assembly for an X-ray tube, an X-ray tube and a CT device.

[0005] This application is implemented through the following technical solutions.

[0006] The first aspect of the present application provides an anode assembly for an X-ray tube, comprising: an anode bearing, which is configured to be rotatable; a driving mechanism, including a rotor, the rotor being sleeved on the anode bearing, the driving mechanism drives the anode bearing to rotate by rotating the rotor, and a first rotating magnetic field is generated when the rotor rotates; a detection coil, which is sleeved on the rotor, the detection coil is coaxially arranged with the rotor, and the detection coil is in the first rotating magnetic field; and a response element, which is electrically connected to the detection coil, the detection coil converts a magnetic field signal of the first rotating magnetic field into an electrical signal and transmits it to the response element, and the magnetic field signal of the first rotating magnetic field corresponds to the rotation of the rotor.

[0007] In the present application, the detection coil can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element, so that the rotation of the anode bearing driven by the rotor can be reflected through the response element. Therefore, the operator can find the abnormality of the anode bearing at the early stage, which is convenient for repair and maintenance.

[0008] In some embodiments of the present application, the driving mechanism includes a stator, the stator is sleeved on the rotor and drives the rotor to rotate, and the detection coil is arranged side by side with the stator.

[0009] The detection coil is arranged side by side with the stator, so as to accurately sense the magnetic field signal of the first rotating magnetic field of the rotor.

[0010] In some embodiments of the present application, the driving mechanism includes a stator, which is sleeved on the rotor. The stator includes a stator coil and the detection coil. The stator coil drives the rotor to rotate, and the detection coil is insulated from the stator coil.

[0011] The stator coil and the detection coil are integrated in the stator, which is beneficial to the structural compactness of the component and can realize the miniaturization of the anode component.

[0012] In some embodiments of the present application, the response element includes a light-emitting element, the light-emitting intensity of the light-emitting element varies according to the magnetic field signal of the first rotating magnetic field; and / or the response element includes a sound-emitting element, the sound intensity of the sound-emitting element varies according to the magnetic field signal of the first rotating magnetic field; and / or the response element includes a vibration element, the vibration intensity of the vibration element varies according to the magnetic field signal of the first rotating magnetic field.

[0013] The rotation status of the anode bearing can be displayed by the luminous intensity of the luminous element, so that the operator can intuitively understand the rotation status of the anode bearing and discover abnormalities of the anode bearing in time.

[0014] The rotation condition of the anode bearing can be displayed by the sound intensity of the sound element, so that the operator can intuitively understand the rotation condition of the anode bearing and discover abnormalities of the anode bearing in time.

[0015] The rotation condition of the anode bearing can be displayed by the vibration intensity of the vibration element, so that the operator can intuitively understand the rotation condition of the anode bearing and discover abnormalities of the anode bearing in time.

[0016] In some embodiments of the present application, the response element includes a plurality of light-emitting elements, and when the detection coil detects that the magnetic field signal of the first rotating magnetic field of the rotor is within a preset range, a first group of light-emitting elements of the plurality of light-emitting elements emit light, and when the detection coil detects that the magnetic field signal of the first rotating magnetic field of the rotor is less than a preset range, a second group of light-emitting elements of the plurality of light-emitting elements emit light, and when the detection coil detects that the magnetic field signal of the first rotating magnetic field of the rotor is greater than a preset range, a third group of light-emitting elements of the plurality of light-emitting elements emit light, wherein the first group of light-emitting elements, the second group of light-emitting elements, and the third group of light-emitting elements include different numbers of light-emitting elements.

[0017] The rotation of the rotor is reflected by the different numbers of light-emitting elements among the plurality of light-emitting elements, so that the operator can intuitively understand the rotation of the anode bearing and discover abnormalities of the anode bearing in time.

[0018] In some embodiments of the present application, the response element includes a signal transmission element, and the signal transmission element is used to transmit the electrical signal transmitted by the detection coil to a signal display device.

[0019] In the present application, the magnetic field of the rotor sensed by the detection coil can be transmitted to the signal display device through the signal transmission element, so that the operator can more intuitively obtain the rotation status of the anode bearing through the signal display device. In addition, the setting of the signal transmission element can facilitate the connection between the anode assembly and other devices, and improve the adaptability of the anode assembly.

[0020] In some embodiments of the present application, the response element includes a signal display device, the signal transmission element transmits the electrical signal transmitted by the detection coil to the signal display device, and the signal display device is used to display the rotation status of the rotor.

[0021] A second aspect of the present application provides an X-ray tube, comprising: a shell; and an anode assembly for an X-ray tube as described in any one of the first aspects of the present application, wherein the anode bearing, the drive mechanism and the detection coil are located inside the shell, and at least part of the response element is located outside the shell.

[0022] In the present application, the detection coil can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element, so that the rotation of the anode bearing driven by the rotor can be reflected through the response element. Therefore, the operator can find the abnormality of the anode bearing at the early stage, which is convenient for repairing and maintaining the X-ray tube.

[0023] In addition, at least part of the response element is located outside the shell. The response element located outside the shell can be used to display the rotation status of the anode bearing driven by the rotor, so that the operator can obtain the rotation status of the anode bearing in time without opening the X-ray tube.

[0024] In some embodiments of the present application, the response element includes a signal display device, which is used to display the rotation status of the rotor transmitted by the detection coil, and the signal display device is arranged outside the shell.

[0025] The signal display device is arranged outside the shell, which is beneficial for the operator to obtain the rotation status of the anode bearing without turning on the X-ray tube, so as to timely discover the abnormality of the anode bearing.

[0026] A third aspect of the present application provides a CT device, comprising: an anode assembly for an X-ray tube as described in any one of the first aspect of the present application, or an X-ray tube as described in any one of the second aspect of the present application.

[0027] In the present application, the detection coil can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element, so that the rotation of the anode bearing driven by the rotor can be reflected through the response element. Therefore, the operator can find the abnormality of the anode bearing at the early stage, which is convenient for repairing and maintaining the CT equipment.

[0028] In some embodiments of the present application, the CT device includes a display screen, the response element is connected to the display screen signal, the response element transmits the electrical signal transmitted from the detection coil to the display screen, and the display screen is used to display the rotation status of the rotor transmitted by the detection coil.

[0029] Usually, the operator needs to check the display screen frequently when using the CT device. Displaying the rotation status of the rotor through the display screen of the CT device is helpful for the operator to obtain the rotation status of the anode bearing in time, so as to discover the abnormality of the anode bearing as early as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 A block diagram of an X-ray tube provided for some embodiments of the present application;

[0032] Figure 2A schematic diagram of the internal structure of an X-ray tube provided in some embodiments of the present application;

[0033] Figure 3 A schematic diagram of the structure of an anode assembly provided for some embodiments of the present application;

[0034] Figure 4 A schematic diagram of a three-dimensional structure of a stator provided in some embodiments of the present application;

[0035] Figure 5 A schematic diagram of the structure of a stator provided for some embodiments of the present application.

[0036] Description of Reference Numerals

[0037] 1. X-ray tube; 10. anode assembly; 11. anode palladium disk; 12. stator; 13. detection coil; 14. anode bearing; 15. response element; 150. information display device; 100. housing; 20. power supply; 30. cathode; 31. electron beam; 32. ray beam. DETAILED DESCRIPTION

[0038] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0039] CT equipment is the most widely used medical detection equipment in the medical industry. It can emit highly penetrating X-rays through the X-ray tube (hereinafter referred to as the tube) inside the machine. After the rays pass through the part to be detected, the device reversely calculates and restores them to images based on the attenuation of the detected rays. In this way, doctors can obtain abnormal detection results of patients in a short time without surgery. At present, the mainstream equipment on the market is mostly rotating anode X-ray tubes, which are components (referred to as tube components) composed of a thick and lead-coated tube sleeve part and an X-ray tube core. Since the high-energy electron beam 31 released from the cathode 30 will continuously bombard the anode palladium disk 11 at high speed, when the high-speed electrons bombard the anode palladium disk 11, the kinetic energy of the electrons can be converted into a beam of rays 32. However, this continuous high-speed bombardment will generate extremely high heat in the local area bombarded, and the temperature at the center position will even exceed the surface of the sun. At this high temperature, the anode palladium disk 11 will melt in a very short time, resulting in the target surface no longer being smooth and flat, and it is no longer possible to effectively and stably generate X-ray beams. Therefore, in order to extend the service life of the anode, the anode is designed to be able to rotate at high speed, which will ensure that the electron beam 31 will not always bombard the same point, greatly extending the service life of the anode. Therefore, in the end, most tube cores are designed to consist of a fixed cathode and a high-speed rotating anode, which is why this type of X-ray tube is called a rotating anode.

[0040] The most common problem in the use of rotating anode X-ray tube cores is anode bearing abnormality. The main manifestations are abnormal bearing rotation speed or jamming. After the tube assembly is installed, the entire tube is wrapped in a thick, lead-clad metal shell. Without additional sensor equipment to detect the rotation of the anode, it is difficult to detect the bearing abnormality without opening the tube sleeve. In most cases, it will only be noticed when the bearing is jammed or the entire tube is abnormally heated. But usually when this happens, the anode of the tube core is already damaged and there is no possibility of saving or repairing it. If the anode abnormality can be discovered at the early stage, there is a possibility of repair, which will greatly reduce the loss of resources. At the same time, the user end of the CT can also respond in advance to prevent the inconvenience caused by sudden downtime.

[0041] In order to solve the above technical problems, the present application provides an anode assembly for an X-ray tube, an X-ray tube and a CT device, which allow an operator to detect abnormalities of an anode bearing at an early stage.

[0042] The anode assembly for an X-ray tube provided in the present application includes: an anode bearing, which is arranged to be rotatable; a driving mechanism, including a rotor, the rotor is sleeved on the anode bearing, the driving mechanism drives the anode bearing to rotate by rotating the rotor, and a first rotating magnetic field is generated when the rotor rotates; a detection coil, which is sleeved on the rotor, the detection coil and the rotor are coaxially arranged, and the detection coil is in the first rotating magnetic field; and a response element, which is electrically connected to the detection coil, the detection coil converts the magnetic field signal of the first rotating magnetic field into an electrical signal and transmits it to the response element, and the magnetic field signal of the first rotating magnetic field corresponds to the rotation of the rotor.

[0043] In the present application, the detection coil can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element, so that the rotation of the anode bearing driven by the rotor can be reflected through the response element. Therefore, the operator can find the abnormality of the anode bearing at the early stage, which is convenient for repair and maintenance.

[0044] Figure 1 A block diagram of an X-ray tube provided for some embodiments of the present application; Figure 2 A schematic diagram of the internal structure of an X-ray tube provided in some embodiments of the present application; Figure 3 A schematic diagram of the structure of an anode assembly provided for some embodiments of the present application; Figure 4 A schematic diagram of a three-dimensional structure of a stator provided in some embodiments of the present application; Figure 5 A schematic diagram of the structure of a stator provided for some embodiments of the present application.

[0045] like Figures 1 to 5 As shown, the anode assembly 10 of the present application may include an anode bearing 14, a driving mechanism, a detection coil 13 and a response element 15. The driving mechanism drives the anode bearing 14 to rotate, and when the anode bearing 14 rotates, it drives the anode palladium disk 11 to rotate together.

[0046] In the present application, the driving mechanism may include a stator 12 and a rotor. The stator includes a stator coil. The magnetic field generated by the stator coil can drive the rotor to rotate. When the rotor rotates, the anode bearing 14 is driven to rotate.

[0047] In the present application, the rotor can be a metal rotor, and the metal rotor will also generate a magnetic field during rotation, which is the first rotating magnetic field. The detection coil 13 in the first rotating magnetic field can sense the magnetic field signal of the first rotating magnetic field and convert the magnetic field signal into an electrical signal, and the electrical signal can reflect the rotation of the rotor.

[0048] Since the rotation of the rotor can drive the anode bearing 14 to rotate, the rotation of the rotor also shows the rotation of the anode bearing 14. For example, when the anode bearing 14 rotates normally, the first rotating magnetic field has a first magnetic field signal, and the electric signal induced by the detection coil 13 is the first electric signal; when the speed of the anode bearing 14 accelerates compared with the normal rotation, the electric signal induced by the detection coil 13 is the second electric signal, the first rotating magnetic field has a second magnetic field signal, and the electric signal induced by the detection coil 13 is the second electric signal; when the speed of the anode bearing 14 decelerates compared with the normal rotation, the electric signal induced by the detection coil 13 is the third electric signal, the first rotating magnetic field has a third magnetic field signal, and the electric signal induced by the detection coil 13 is the third electric signal. The first magnetic field signal, the second magnetic field signal and the third magnetic field signal are different from each other, and thus the first electric signal, the second electric signal and the third electric signal are different from each other. Based on this principle, the rotation of the anode bearing 14 can be displayed to the operator through the response element 15.

[0049] The driving mechanism of the X-ray tube 1 can be an induction motor, which has high reliability, simple structure, low maintenance cost, excellent speed regulation performance, stable high-speed operation capability, good heat dissipation and overload resistance. However, since the rotor of the induction motor needs to be in a vacuum environment, conventional bearing lubrication methods cannot be used. Generally speaking, the balls inside the bearing are coated with film technology, and softer metals are used as lubricants, such as silver, lead, etc. However, this method has the risk of chipping, which eventually leads to failures such as bearing jamming.

[0050] The detection method of the detection coil 13 of the present application can infer the friction force of the bearing according to the change of the feedback current value when maintaining the X-ray tube 1, and finally determine the state of the bearing under the current conditions, so as to decide whether the X-ray tube 1 needs to be replaced in advance to ensure that it does not affect the use of the hospital.

[0051] In the present application, the detection coil 13 can be sleeved on the rotor and coaxially arranged with the rotor. The induced current in the detection coil 13 is caused by the change of the magnetic field generated by the rotor, and the change frequency of the rotor magnetic field is directly related to the mechanical speed of the rotor.

[0052] In an induction motor, the synchronous speed of the motor (n s ) and power frequency (f s ) is shown in the following formula 1:

[0053]

[0054] in:

[0055] n s : Synchronous speed, in revolutions per minute (rpm);

[0056] f s : power frequency, in Hertz (Hz);

[0057] p: number of pole pairs of the motor.

[0058] The actual rotor speed (n r The slip relationship between ) and the synchronous speed is shown in the following equation 2:

[0059] n r =n s (1-s)

[0060] in:

[0061] n r : Actual rotor speed, in revolutions per minute (rpm);

[0062] s: slip.

[0063] The slip (s) is defined as shown in the following equation 3:

[0064]

[0065] The frequency of the magnetic field change generated by the rotor (f r ) is related to the slip and power frequency as shown in the following equation 4:

[0066] f r =s*f s

[0067] in:

[0068] f r : The frequency of change of the magnetic field generated by the rotor, in revolutions per minute (rpm).

[0069] The current frequency induced by the detection coil 13 is the rotor magnetic field change frequency (f r ), and its relationship with the rotation speed is shown in the following formula 5:

[0070]

[0071] By measuring the frequency of the induced current in the detection coil 13, the rotor speed (n r ) is shown in the following formula 5:

[0072]

[0073] The frequency of the induced current can be extracted using Fourier transform and combined with the above formula to achieve real-time monitoring.

[0074] like Figure 3As shown, in some embodiments of the present application, the driving mechanism includes a stator 12, which is sleeved on the rotor and drives the rotor to rotate, and the detection coil 13 is arranged side by side with the stator 12. The driving mechanism can be powered by a power supply 20.

[0075] The detection coil 13 and the stator 12 are arranged side by side to facilitate accurate sensing of the magnetic field signal of the first rotating magnetic field of the rotor.

[0076] It should be noted that the present application is not limited to the aforementioned embodiments. Figure 1 As shown, in some embodiments, the driving mechanism may include a stator 12, the stator 12 is sleeved on the rotor, the stator 12 includes a stator coil 120 and a detection coil 13, the stator coil 120 drives the rotor to rotate, and the detection coil 13 is insulated from the stator coil 120. The stator coil 120 and the detection coil 13 are integrated in the stator 12, which is conducive to the compactness of the assembly structure and can realize the miniaturization of the anode assembly 10.

[0077] In some embodiments of the present application, the response element 15 includes a light emitting element, and the light intensity of the light emitting element varies according to the magnetic field signal of the first rotating magnetic field. For example, when the rotation speed of the anode bearing 14 decreases, the light intensity of the light emitting element decreases accordingly; when the rotation speed of the anode bearing 14 increases, the light intensity of the light emitting element increases accordingly.

[0078] The rotation status of the anode bearing 14 can be displayed by the light intensity of the light emitting element, so that the operator can intuitively understand the rotation status of the anode bearing 14 and discover the abnormality of the anode bearing 14 in time.

[0079] In some embodiments of the present application, the response element 15 includes a sound element, and the sound intensity of the sound element varies according to the magnetic field signal of the first rotating magnetic field. For example, when the rotation speed of the anode bearing 14 decreases, the sound intensity of the sound element decreases accordingly; when the rotation speed of the anode bearing 14 increases, the sound intensity of the sound element increases accordingly.

[0080] The sound intensity of the sound element can display the rotation status of the anode bearing 14 , so that the operator can intuitively understand the rotation status of the anode bearing 14 and discover abnormalities of the anode bearing 14 in time.

[0081] In some embodiments of the present application, the response element 15 includes a vibration element, and the vibration intensity of the vibration element varies according to the magnetic field signal of the first rotating magnetic field. For example, when the rotation speed of the anode bearing 14 decreases, the vibration intensity of the vibration element decreases accordingly; when the rotation speed of the anode bearing 14 increases, the vibration intensity of the vibration element increases in response.

[0082] The rotation status of the anode bearing 14 can be displayed by the vibration intensity of the vibration element, so that the operator can intuitively understand the rotation status of the anode bearing 14 and discover the abnormality of the anode bearing 14 in time.

[0083] In some embodiments of the present application, the response element 15 includes multiple light-emitting elements. When the detection coil 13 detects that the magnetic field signal of the first rotating magnetic field of the rotor is within a preset range, a first group of the multiple light-emitting elements emit light. When the detection coil 13 detects that the magnetic field signal of the first rotating magnetic field of the rotor is less than the preset range, a second group of the multiple light-emitting elements emit light. When the detection coil 13 detects that the field signal of the first rotating magnetic field of the rotor is greater than the preset range, a third group of the multiple light-emitting elements emit light. The first group of light-emitting elements, the second group of light-emitting elements and the third group of light-emitting elements include different numbers of light-emitting elements.

[0084] In the present application, the response element 15 may include multiple lamp beads. For example, five lamp beads are pre-set. If the anode bearing 14 operates normally, only three lamp beads will be lit. If the speed is too fast, more lamp groups will be lit. Conversely, if the speed is too slow, fewer lamp beads will be lit or all will be extinguished.

[0085] The rotation of the rotor is reflected by the different numbers of light-emitting elements among the plurality of light-emitting elements, so that the operator can intuitively understand the rotation of the anode bearing 14 and discover abnormalities of the anode bearing 14 in time.

[0086] In some embodiments of the present application, the response element 15 includes a signal transmission element, which is used to transmit the electrical signal transmitted by the detection coil 13 to the signal display device. In the present application, the signal transmission element can be a current sensor, a single chip microcomputer, a circuit, a chip, or other element with a transmission function.

[0087] In the present application, the response element 15 may include a signal acquisition device and a data processing unit, which may receive the electrical signal transmitted by the signal transmission element and transmit it to the signal display device after corresponding processing, so as to detect the use of the bearing during inspection and maintenance. It should be noted that the signal display device described here may be a display device of the X-ray tube 1 or a display device (display screen) of a CT device.

[0088] In the present application, the magnetic field of the rotor sensed by the detection coil 13 can be transmitted to the signal display device through the signal transmission element, so that the operator can more intuitively obtain the rotation status of the anode bearing 14 through the signal display device. In addition, the setting of the signal transmission element can facilitate the connection between the anode assembly 10 and other devices, and improve the adaptability of the anode assembly 10.

[0089] In some embodiments of the present application, the response element 15 includes a signal display device. The signal transmission element transmits the electrical signal transmitted by the detection coil 13 to the signal display device, and the signal display device is used to display the rotation status of the rotor.

[0090] Based on the same or similar ideas, such as Figure 1 As shown, the present application also provides an X-ray tube 1, comprising: a shell 100; and an anode assembly 10 for an X-ray tube as in the aforementioned embodiment, wherein an anode bearing 14, a driving mechanism and a detection coil 13 are located inside the shell 100, and at least a portion of a response element 15 is located outside the shell 100.

[0091] In the present application, the detection coil 13 can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element 15, so that the rotation of the anode bearing 14 driven by the rotor can be reflected through the response element 15. Therefore, the operator can find the abnormality of the anode bearing 14 at the early stage, which is convenient for repairing and maintaining the X-ray tube.

[0092] In addition, at least part of the response element 15 is located outside the shell 100. The response element 15 located outside the shell 100 can be used to display the rotation status of the anode bearing 14 driven by the rotor, so that the operator can obtain the rotation status of the anode bearing 14 in time without turning on the X-ray tube.

[0093] In some embodiments of the present application, Figure 1 As shown, the response element 15 includes an information display device 150 , which is used to display the rotation status of the rotor transmitted by the detection coil 13 . The information display device 150 is arranged outside the housing 100 .

[0094] The signal display device is arranged outside the housing, which is helpful for the operator to obtain the rotation status of the anode bearing 14 without turning on the X-ray tube, so as to find abnormalities of the anode bearing 14 in time.

[0095] Based on the same or similar concept, the present application further provides a CT device, including: an anode assembly 10 for an X-ray tube as in the aforementioned embodiment, or an X-ray tube 1 as in the aforementioned embodiment.

[0096] In the present application, the detection coil 13 can convert the magnetic field signal of the first rotating magnetic field of the rotor into an electrical signal and transmit it to the response element 15, so that the rotation of the anode bearing 14 driven by the rotor can be reflected through the response element 15. Therefore, the operator can find out the abnormality of the anode bearing 14 at the early stage, which is convenient for repairing and maintaining the CT equipment.

[0097] In some embodiments of the present application, the CT device includes a display screen, and the response element 15 is connected to the display screen signal. The response element 15 transmits the electrical signal transmitted from the detection coil 13 to the display screen, and the display screen is used to display the rotation status of the rotor transmitted by the detection coil 13.

[0098] Usually, the operator needs to check the display screen frequently when using the CT device. Displaying the rotation status of the rotor on the display screen of the CT device is helpful for the operator to obtain the rotation status of the anode bearing 14 in time, so as to discover the abnormality of the anode bearing 14 as early as possible.

[0099] The solution of this application does not introduce too many components, nor does it require an additional power supply or major improvements to the original design. All energy comes from the mutual conversion between electricity and magnetism. Neither the lamp beads nor the single-chip microcomputer consumes too much energy, so you only need to slightly adjust the input of the main line package to monitor the bearing. As long as the bearing can still rotate, this simple structure can work normally. In the end, the operator only needs to pay attention to whether the "display device" is in normal working condition. Once the display is abnormal, its operation can be stopped in advance before greater losses occur, and the corresponding staff can be found for repair or replacement.

[0100] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0101] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0102] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0103] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0104] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0105] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0106] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0107] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An anode assembly for an X-ray tube, characterized in that: include: an anode bearing, arranged to be rotatable; A driving mechanism, comprising a rotor, wherein the rotor is sleeved on the anode bearing, and the driving mechanism drives the anode bearing to rotate by rotating the rotor, and a first rotating magnetic field is generated when the rotor rotates; A detection coil is sleeved on the rotor, the detection coil is coaxially arranged with the rotor, and the detection coil is in the first rotating magnetic field; as well as A response element is electrically connected to the detection coil, and the detection coil converts the magnetic field signal of the first rotating magnetic field into an electrical signal and transmits it to the response element. The magnetic field signal of the first rotating magnetic field corresponds to the rotation of the rotor.

2. The anode assembly for an X-ray tube according to claim 1, characterized in that: The driving mechanism comprises a stator, which is sleeved on the rotor and drives the rotor to rotate, and the detection coil is arranged side by side with the stator.

3. The anode assembly for an X-ray tube according to claim 1, characterized in that: The driving mechanism comprises a stator, the stator is sleeved on the rotor, the stator comprises a stator coil and the detection coil, the stator coil drives the rotor to rotate, and the detection coil is insulated from the stator coil.

4. The anode assembly for an X-ray tube according to any one of claims 1 to 3, characterized in that: The response element comprises a light emitting element, and the light emission intensity of the light emitting element varies according to the magnetic field signal of the first rotating magnetic field; and / or The response element comprises a sound-generating element, and the sound intensity of the sound-generating element varies according to the magnetic field signal of the first rotating magnetic field; and / or The response element includes a vibration element, and the vibration intensity of the vibration element is different according to the magnetic field signal of the first rotating magnetic field.

5. The anode assembly for an X-ray tube according to any one of claims 1 to 3, characterized in that: The response element includes a plurality of light emitting elements, When the magnetic field signal of the first rotating magnetic field of the rotor detected by the detection coil is within a preset range, the first group of light emitting elements of the plurality of light emitting elements emits light, When the magnetic field signal of the first rotating magnetic field of the rotor detected by the detection coil is smaller than a preset range, the second group of light emitting elements of the plurality of light emitting elements emits light, When the magnetic field signal of the first rotating magnetic field of the rotor detected by the detection coil is greater than a preset range, the third group of light emitting elements of the plurality of light emitting elements emits light, The first group of light-emitting elements, the second group of light-emitting elements and the third group of light-emitting elements include different numbers of light-emitting elements.

6. The anode assembly for an X-ray tube according to any one of claims 1 to 3, characterized in that: The response element includes a signal transmission element, and the signal transmission element is used to transmit the electrical signal transmitted by the detection coil to a signal display device.

7. The anode assembly for an X-ray tube according to claim 6, characterized in that: The response element includes a signal display device. The signal transmission element transmits the electrical signal transmitted by the detection coil to the signal display device. The signal display device is used to display the rotation status of the rotor.

8. An X-ray tube, characterized in that: include: case; and The anode assembly for an X-ray tube according to any one of claims 1 to 7, wherein the anode bearing, the drive mechanism and the detection coil are located inside the housing, and at least a portion of the response element is located outside the housing.

9. The X-ray tube according to claim 8, characterized in that The response element comprises a signal display device, and the signal display device is used to display the rotation status of the rotor transmitted by the detection coil, and the signal display device is located outside the shell.

10. A CT device, characterized in that: include: An anode assembly for an X-ray tube as claimed in any one of claims 1 to 7, or an X-ray tube as claimed in claim 8 or 9.

11. The CT device according to claim 10, characterized in that: The CT device includes a display screen. The response element is connected to the display screen signal. The response element transmits the electrical signal transmitted from the detection coil to the display screen. The display screen is used to display the rotation status of the rotor transmitted by the detection coil.

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