Integrated high voltage generator and CT system

Abstract

The utility model discloses an integrated high-voltage generator and a CT system, the integrated high-voltage generator comprises a high-voltage multiplication module, an inverter module, a rectification module and a control module with analog and digital communication functions which are arranged in the same box body, and the box body comprises a mounting bottom plate, a side plate and a cover plate. The mounting bottom plate is provided with a bending structure matched with a rotating rack of the CT system; the high-voltage multiplication module, the inverter module and the rectifier module are fixedly connected with the mounting bottom plate respectively; the edge of the mounting bottom plate is also provided with a plurality of through holes which are matched with fixing pieces so as to fix the integrated high-voltage generator on the rotating rack; the integrated high-voltage generator is high in reliability and more convenient to install and replace.

Description

Technical Field

[0001] The utility model relates to the field of X-ray high voltage generators, in particular to an integrated high voltage generator and a CT system. Background Art

[0002] CT (Computed Tomography) is an electronic computer tomography that uses a precisely collimated X-ray beam and a highly sensitive detector to perform cross-sectional scans around a certain part of the human body. It is an important detection and treatment device in the medical field. With the rapid development of the medical industry, the performance requirements for a wide range of CT are becoming higher and higher, and the high-voltage generator is one of the important components of CT.

[0003] The existing CT high-voltage generator is large in size and uses a separate multiple-box structure to fit the installation of the CT circular frame. The boxes are connected by cables, which is not reliable enough. The system installation and replacement are complex, and maintenance and repair are inconvenient. In addition, the existing CT mostly uses pure digital communication to control the high-voltage exposure process. For different CT system designs, it is necessary to develop additional timing control of the high-voltage generator.

[0004] The disclosure of the above background technology content is only used to assist in understanding the utility model concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical guidance. In the absence of clear evidence that the above content has been disclosed before the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content

[0005] The utility model aims to provide an integrated high voltage generator and CT system, which has high reliability and is convenient for system installation and replacement.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An integrated high-voltage generator includes a high-voltage multiplier module, an inverter module, a rectifier module, and a control module including analog and digital communication functions arranged in the same box, wherein the box includes a mounting bottom plate, a side plate, and a cover plate, wherein the mounting bottom plate has a bending structure adapted to a rotating rack of a CT system;

[0008] The space enclosed by the mounting base plate, the side plate and the cover plate includes a first area, a second area and a third area, the high-voltage multiplier module is installed in the first area and fixedly connected to the mounting base plate, the inverter module is installed in the second area and fixedly connected to the mounting base plate, and the rectifier module is installed in the third area and fixedly connected to the mounting base plate;

[0009] The edge of the mounting base plate is also provided with a plurality of through holes for cooperating with fixing members to realize fixing the integrated high-voltage generator on the rotating frame.

[0010] Further, the second area is arranged between the first area and the third area;

[0011] The high-voltage multiplier module and the inverter module are arranged on a first plane of the mounting base plate, and the rectifier module is mounted on a second plane of the mounting base plate. The first plane and the second plane are different planes.

[0012] Further, based on any of the technical solutions or the combination of multiple technical solutions mentioned above, the angle formed by the first plane and the second plane ranges from 215° to 240°, or the angle formed by the first plane and the second plane ranges from 220° to 230°, or the angle formed by the first plane and the second plane ranges from 223° to 227°.

[0013] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the cover plate has a bending structure.

[0014] Furthermore, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the side panel is provided with a handle and a heat dissipation hole.

[0015] Further, based on any one of the above-mentioned technical solutions or a combination of multiple technical solutions, the integrated high-voltage generator further includes a rotating anode driving module, and the input end of the rotating anode driving module is electrically connected to the output end of the rectifier module;

[0016] The rectifier module is configured to receive an external three-phase electrical signal, and output a direct current signal to the inverter module after rectifying the three-phase electrical signal;

[0017] The inverter module is configured to invert the DC signal output by the rectifier module into an AC signal, and output the inverted AC signal to the high-voltage multiplication module;

[0018] The high-voltage multiplier module is configured to perform a voltage-boosting operation on the AC electric signal inverted by the inverter module.

[0019] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the side panel is provided with a positive electrode interface and a negative electrode interface for plugging in cables, and the output end of the high-voltage multiplier module is electrically connected to the positive electrode interface and the negative electrode interface respectively.

[0020] Further, based on any one of the technical solutions or a combination of multiple technical solutions described above, the control module with analog and digital communication functions is electrically connected to the inverter module and the high-voltage multiplier module, and the control module including analog and digital communication functions is communicatively connected to the control module of the CT system via a wired or wireless manner.

[0021] According to another aspect of the utility model, the utility model provides a CT system, including a rotating frame and a ray tube and a detector fixedly installed on the rotating frame, and also includes the integrated high-voltage generator, and the mounting base plate of the box of the integrated high-voltage generator is fixedly installed on the rotating frame.

[0022] Furthermore, the detector is arranged opposite to the radiation window of the radiation tube, the rectifier module of the integrated high-voltage generator is configured to be connected to an external 380V-480V three-phase power supply, and the integrated high-voltage generator provides power to the radiation tube through a cable.

[0023] The beneficial effects brought by the technical solution provided by the utility model are as follows:

[0024] a. The high voltage generator adopts an integrated structure, which is more reliable;

[0025] b. With the integrated high-voltage generator, the CT system is easy to install and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A three-dimensional schematic diagram of an integrated high-voltage generator structure provided for an exemplary embodiment of the utility model;

[0028] Figure 2 A schematic top view of an integrated high voltage generator structure provided for an exemplary embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of a CT system provided for an exemplary embodiment of the utility model;

[0030] Figure 4 A schematic diagram of interactive control between a CT system and a high voltage generator provided for an exemplary embodiment of the utility model;

[0031] Figure numerals: 100 - box, 110 - mounting base, 120 - cover plate, 112 - first area, 114 - second area, 116 - third area, 132 - handle, 134 - heat dissipation hole, 136 - positive electrode interface, 138 - negative electrode interface, 200 - rotating frame, 300 - X-ray tube, 400 - detector, 500 - radiator. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0034] In one embodiment of the present invention, an integrated high voltage generator for a CT system is provided. Figure 1 and Figure 2 , including a high-voltage multiplier module, an inverter module, a rectifier module, a control module including analog and digital communication functions, and a filament power supply module arranged inside the same box 100, and also including a rotating anode drive module arranged outside the box 100, the box 100 includes a mounting base plate 110, a side plate and a cover plate 120, wherein the mounting base plate 110 has a bending structure adapted to the rotating gantry 200 of the CT system, and the bending structure includes a first plane and a second plane with a certain angle; the cover plate 120 has a bending structure corresponding to the cover plate 120. Reference Figure 3The edge of the mounting base plate 110 is also provided with a plurality of through holes for cooperating with fixing parts to realize fixing the integrated high-voltage generator on the rotating frame 200. After the mounting base plate 110 and the rotating frame 200 are installed, the first plane and the second plane are tangent to the outer edge of the arc of the rotating frame 200. The side panel is provided with a handle 132 to facilitate the removal and movement of the high-voltage generator; it is also provided with a heat dissipation hole 134 for the internal structure of the box 100 to dissipate heat; the heat dissipation hole 134 can be set on one side panel of the box 100, or it can be symmetrically set on both side panels to form a convection structure, which is conducive to heat dissipation.

[0035] In one embodiment of the utility model, the space enclosed by the mounting base plate 110 and the side plate and cover plate 120 includes a first area 112, a second area 114 and a third area 116; the high-voltage multiplier module is installed in the first area 112 and fixedly connected to the mounting base plate 110; the inverter module is installed in the second area 114 and fixedly connected to the mounting base plate 110; the rectifier module is installed in the third area 116 and fixedly connected to the mounting base plate 110; and the control module including analog and digital communication functions is installed on the cover plate 120.

[0036] refer to Figure 1 and Figure 2 In one embodiment of the present utility model, the second area 114 is arranged between the first area 112 and the third area 116; the first area 112 and the second area 114 are arranged on a first plane, and the third area 116 is arranged on a second plane. The high-voltage multiplier module and the inverter module are arranged on a first plane of the mounting base plate 110, and the rectifier module is installed on a second plane of the mounting base plate 110, and the first plane and the second plane are different planes with a certain angle. The control module including analog and digital communication functions is installed above the top plate corresponding to the first plane.

[0037] Different from the above embodiment, in another embodiment of the present invention, the first area 112 is arranged on a first plane, the second area 114 and the third area 116 are arranged on a second plane, and the high-voltage multiplier module, the inverter module and the rectifier module are arranged in the first area 112, the second area 114 and the third area 116 respectively; or,

[0038] The third area 116 is arranged on a first plane, the first area 112 and the second area 114 are arranged on a second plane, and the high-voltage multiplier module, the inverter module and the rectifier module are arranged in the first area 112 , the second area 114 and the third area 116 respectively.

[0039] An integrated structure is adopted to concentrate the high-voltage multiplier module, inverter module, control module including analog and digital communication functions, and rectifier module in the high-voltage generator into one box 100, wherein the high-voltage multiplier module, inverter module, and rectifier module are larger in volume than the control module including analog and digital communication functions. Therefore, the high-voltage multiplier module, inverter module, and rectifier module are arranged in a non-stacked manner, and the control module including analog and digital communication functions is stacked on any of the three modules. Similarly, the filament power supply module can be stacked on top of the high-voltage multiplier module. Compared with the traditional split-type high-voltage generator structure, because different modules do not need to be connected by external cables, during the operation of the CT system, the amplitude of the vibration and shaking of the connection cables of different modules along with the system is reduced. The integrated high-voltage generator of the utility model has higher reliability, and its installation and replacement operations are more convenient, which is convenient for inspection and maintenance.

[0040] In one embodiment of the present invention, the angle formed by the first plane and the second plane is in the range of 215° to 240°; or, the angle formed by the first plane and the second plane is in the range of 220° to 230°; or, the angle formed by the first plane and the second plane is in the range of 223° to 227°. Figure 3 , the angle formed by the first plane and the second plane is 225°.

[0041] refer to Figure 3 , is a CT system provided in an embodiment of the utility model, comprising the integrated high-voltage generator, a rotating frame 200, and a ray tube 300, a detector 400 and a radiator 500 fixedly mounted on the rotating frame 200, the mounting base plate 110 of the box body 100 of the integrated high-voltage generator is fixedly mounted on the rotating frame 200; the first plane and the second plane of the mounting base plate 110 are both tangent to the arc-shaped outer edge of the rotating frame 200.

[0042] The detector 400 is arranged opposite to the radiation window of the radiation tube 300, and the rectifier module of the integrated high-voltage generator is configured to be connected to an external 380V-480V three-phase power supply. The integrated high-voltage generator provides power to the radiation tube 300 through a cable.

[0043] refer to Figure 4, a schematic diagram of interactive control between a CT system and the high-voltage generator provided by an exemplary embodiment of the utility model, wherein the rectifier module, the high-voltage multiplier module rectifier module, the control module including analog and digital communication functions, the rotating anode drive module and the filament power supply module are respectively connected to the CT system controller interface; the control module is connected to the inverter module, the rotating anode drive module and the filament power supply module; a positive electrode interface 136 and a negative electrode interface 138 for plugging cables are provided on the side panel, and the output end of the high-voltage multiplier module is electrically connected to the positive electrode interface 136 and the negative electrode interface 138 respectively. The positive electrode interface 136 and the negative electrode interface 138 are respectively connected to the anode and cathode of the tube. The interaction with the CT system is carried out by combining analog signal and digital signal control, so that independent control of the internal modules of the high-voltage generator can be realized, and there is no need to develop additional timing control of the high-voltage generator for different CT systems.

[0044] The rectifier module is configured to receive an external three-phase electrical signal, and output a DC signal to the inverter module after rectifying the three-phase electrical signal; the inverter module is configured to invert the DC signal output by the rectifier module into an AC signal, and output the inverted AC signal to the high-voltage multiplier module; the high-voltage multiplier module is configured to perform a boost operation on the AC signal inverted by the inverter module. The control module including analog and digital communication functions collects the parameter conditions (kV, mA, Filament) required for exposure by the CT system, and transmits the collected information to the inverter module; the inverter module works according to the received instructions, adjusts the voltage and frequency and transmits them to the high-voltage multiplier module; the high-voltage multiplier module performs a boost operation to supply the generated high voltage to the tube for exposure.

[0045] In one embodiment of the utility model, the control module is electrically connected to the inverter module and the high-voltage multiplier module, and the control module including analog and digital communication functions is connected to the control module of the CT system by wired or wireless communication. During the entire exposure period, the control module can also receive the working signal of the high-voltage multiplier module and transmit the high-voltage state to the CT control system through the control module including analog and digital communication functions. Once an abnormal high-voltage parameter is detected, an abnormal signal is immediately transmitted to the CT control system to control the cutting off of the output of the high-voltage multiplier module to the tube.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An integrated high voltage generator for a CT system, It is characterized in that The invention comprises a high-voltage multiplier module, an inverter module, a rectifier module, and a control module including analog and digital communication functions, which are arranged inside the same box (100); the box (100) comprises a mounting base plate (110), a side plate, and a cover plate (120); wherein the mounting base plate (110) has a bending structure adapted to a rotating gantry (200) of a CT system; The space enclosed by the mounting base plate (110), the side plate and the cover plate (120) comprises a first area (112), a second area (114) and a third area (116); the high-voltage multiplier module is mounted in the first area (112) and fixedly connected to the mounting base plate (110); the inverter module is mounted in the second area (114) and fixedly connected to the mounting base plate (110); and the rectifier module is mounted in the third area (116) and fixedly connected to the mounting base plate (110); The edge of the mounting base plate (110) is also provided with a plurality of through holes for cooperating with fixing members to realize fixing of the integrated high-voltage generator on the rotating frame (200).

2. The integrated high voltage generator according to claim 1, It is characterized in that The second area (114) is arranged between the first area (112) and the third area (116); The high-voltage multiplier module and the inverter module are arranged on a first plane of the mounting base plate (110), and the rectifier module is mounted on a second plane of the mounting base plate (110), wherein the first plane and the second plane are different planes.

3. The integrated high voltage generator according to claim 2, It is characterized in that The angle formed by the first plane and the second plane ranges from 215° to 240°, or the angle formed by the first plane and the second plane ranges from 220° to 230°, or the angle formed by the first plane and the second plane ranges from 223° to 227°.

4. The integrated high voltage generator according to claim 1, It is characterized in that The cover plate (120) has a bent structure.

5. The integrated high voltage generator according to claim 1, It is characterized in that The side panel is provided with a handle (132) and a heat dissipation hole (134).

6. The integrated high voltage generator according to claim 1, It is characterized in that It also includes a rotating anode driving module, wherein the input end of the rotating anode driving module is electrically connected to the output end of the rectifying module; The rectifier module is configured to receive an external three-phase electrical signal, and output a direct current signal to the inverter module after rectifying the three-phase electrical signal; The inverter module is configured to invert the DC signal output by the rectifier module into an AC signal, and output the inverted AC signal to the high-voltage multiplication module; The high-voltage multiplier module is configured to perform a voltage-boosting operation on the AC electric signal inverted by the inverter module.

7. The integrated high voltage generator according to claim 6, It is characterized in that The side panel is provided with a positive electrode interface (136) and a negative electrode interface (138) for plugging in cables, and the output end of the high-voltage multiplier module is electrically connected to the positive electrode interface (136) and the negative electrode interface (138) respectively.

8. The integrated high voltage generator according to any one of claims 1 to 7, It is characterized in that The control module including analog and digital communication functions is electrically connected to the inverter module and the high-voltage multiplier module, and the control module including analog and digital communication functions is communicatively connected to the control module of the CT system via wired or wireless means.

9. A CT system, comprising a rotating gantry (200) and a ray tube (300) and a detector (400) fixedly mounted on the rotating gantry (200). It is characterized in that It also comprises an integrated high voltage generator as claimed in any one of claims 1 to 7, wherein a mounting base plate (110) of a box body (100) of the integrated high voltage generator is fixedly mounted on the rotating frame (200).

10. The CT system according to claim 9, It is characterized in that The detector (400) is arranged opposite to the radiation window of the radiation tube (300), the rectifier module of the integrated high-voltage generator is configured to be connected to an external 380V-480V three-phase power supply, and the integrated high-voltage generator provides power to the radiation tube (300) via a cable.

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