Combined X-ray source

Abstract

The utility model discloses a combined X-ray source. The combined X-ray source comprises a shell, a bulb tube module, a filament module and a voltage-multiplying module, wherein the shell is provided with a window, and the bulb tube module is configured to emit X-rays to the outside of the shell through the window; the voltage-multiplying module comprises a voltage-multiplying circuit assembly, a high-voltage transformer and an insulating cover, the voltage-multiplying circuit assembly is arranged in the insulating cover, and the high-voltage transformer is arranged outside the insulating cover; the voltage doubling circuit assembly is electrically connected with the high-voltage transformer and the filament module. The high-voltage transformer is electrically connected with the anode of the bulb tube module. The filament module is electrically connected with the cathode of the bulb tube module. The combined X-ray source provided by the utility model not only is small in size, but also can realize kilovolt high voltage output.

Description

TECHNICAL FIELD

[0001] The utility model relates to X ray high -voltage generator field technical field especially relates to a combined X ray source. BACKGROUND

[0002] Since the medical diagnostic equipment is more and more high to image quality requirement, this requires the stability of the high voltage of X ray generator to have substantial promotion, is used for guaranteeing the stability of image brightness.Meanwhile, medical diagnostic equipment is also reducing the radiation dose of patient, and tries to reduce the harm to patient.For X ray source, the rise of high voltage kV must be stable and fast, can reduce the radiation dose of patient, and the stability performance of power signal transmission determines the output of kV high voltage, and the X ray source of low kV high voltage exists partial position photographing image unclear, even does not exist such as the problem of taking out.

[0003] Therefore, it is particularly important to develop high-efficiency and high-performance X ray source.However, in the existing products, the X ray source of kV high voltage is generally large in size, and even some X ray sources of high voltage with large size have unclear imaging problems in actual application.

[0004] The disclosure of the above background art content is only used to assist in understanding the concept and technical solution of the utility model, which does not necessarily belong to the prior art of the present application, nor does it necessarily provide technical teaching; in the absence of explicit evidence that the above content has been disclosed before the filing date of the present application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a combined X ray source, which is not only small in size but also can realize kV high voltage output.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A combined X ray source, comprising a shell, a bulb module, a filament module and a voltage doubler module arranged inside the shell;

[0008] The shell is provided with a window, and the bulb module is configured to emit X rays outside the shell through the window.

[0009] The voltage doubler module comprises a voltage doubler circuit assembly, a high-voltage transformer and an insulating cover, the voltage doubler circuit assembly is arranged in the insulating cover, and the high-voltage transformer is arranged outside the insulating cover.

[0010] The voltage doubler circuit assembly is electrically connected with the high-voltage transformer and the filament module respectively, and the high-voltage transformer is electrically connected with the anode of the bulb module.

[0011] The filament module is electrically connected with the cathode of the bulb module.

[0012] Further, any one of the above technical solutions or a combination of the above technical solutions, the filament module comprises a filament transformer, and the filament transformer is arranged outside the insulating cover.

[0013] Further, any one of the above technical solutions or a combination of the above technical solutions, the voltage doubling circuit assembly comprises a cathode voltage doubling circuit assembly and an anode voltage doubling circuit assembly;

[0014] The insulating cover comprises a first insulating cover and a second insulating cover.

[0015] The cathode voltage doubling circuit assembly is arranged in the first insulating cover, and the anode voltage doubling circuit assembly is arranged in the second insulating cover.

[0016] Further, any one of the above technical solutions or a combination of the above technical solutions, the high-voltage transformer is arranged between the first insulating cover and the second insulating cover; and / or,

[0017] The first insulating cover is made of high-density polyethylene; and / or,

[0018] The second insulating cover is made of high-density polyethylene.

[0019] Further, any one of the above technical solutions or a combination of the above technical solutions, the cathode voltage doubling circuit assembly comprises a plurality of cathode circuit boards, and the plurality of cathode circuit boards are arranged in a stack.

[0020] First insulating plates are arranged between two adjacent cathode circuit boards; or first insulating plates are arranged between two adjacent cathode circuit boards with a distance less than a preset distance.

[0021] Further, any one of the above technical solutions or a combination of the above technical solutions, the anode voltage doubling circuit assembly comprises a plurality of anode circuit boards, and the plurality of anode circuit boards are arranged in a stack.

[0022] First insulating plates are arranged between two adjacent anode circuit boards; or first insulating plates are arranged between two adjacent anode circuit boards with a distance less than a preset distance.

[0023] Further, any one of the above technical solutions or a combination of the above technical solutions, the first insulating plates are made of high-density polyethylene.

[0024] Further, any one of the above technical solutions or the combination of the above technical solutions further comprises a second insulating plate, which is arranged between the voltage doubling module and the inner wall of the shell.

[0025] Further, any one of the above technical solutions or the combination of the above technical solutions further comprises an air bag, which is arranged between the second insulating plate and the inner wall of the shell; and / or,

[0026] The second insulating plate is made of high-density polyethylene.

[0027] Further, any one of the above technical solutions or the combination of the above technical solutions, the shell is made of metal material, and an insulating coating is arranged on the inner wall surface of the shell; and / or,

[0028] Further, any one of the above technical solutions or the combination of the above technical solutions, the shell is made of metal material, and an insulating coating is arranged on the inner wall surface of the shell; and / or,

[0029] Further, any one of the above technical solutions or the combination of the above technical solutions, the shell is made of metal material, and an insulating coating is arranged on the inner wall surface of the shell; and / or,

[0030] Further, any one of the above technical solutions or the combination of the above technical solutions, the shell is made of metal material, and an insulating coating is arranged on the inner wall surface of the shell; and / or,

[0031] The beneficial effects brought by the technical solutions of the present application are as follows:

[0032] a. The ball tube module, the voltage doubling module and the filament module are combined together, so that the volume of the X-ray source can be reduced, the cable spacing between different components can be shortened, the interference can be reduced, and the product performance can be improved.

[0033] b. The combined X-ray source is convenient to install and replace when applied to a C-arm system.

[0034] c. The combined X-ray source can enhance the anti-electromagnetic signal interference ability, the insulation ability and the high voltage resistance ability by additionally arranging the insulating cover and the insulating plate. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Figure 1The front view schematic diagram of the combined X-ray source is provided for an exemplary embodiment of the utility model.

[0037] Figure 2 The three-dimensional schematic diagram of the combined X-ray source of the first angle is provided for an exemplary embodiment of the utility model.

[0038] Figure 3 The three-dimensional schematic diagram of the combined X-ray source of the second angle is provided for an exemplary embodiment of the utility model.

[0039] Figure 4 The right view schematic diagram of the combined X-ray source is provided for an exemplary embodiment of the utility model.

[0040] Wherein, the reference signs include: 1 - shell, 11 - window, 21 - high voltage transformer, 22 - cathode circuit board, 23 - first insulating plate, 24 - anode circuit board, 31 - filament transformer, 41 - first insulating cover, 42 - second insulating cover, 51 - second insulating plate, 6 - air bag, 71 - aviation plug, 8 - bulb module, 9 - cooling pump. DETAILED DESCRIPTION

[0041] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be described clearly and completely 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 the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the scope of protection of the utility model.

[0042] It should be noted that the terms "first", "second" and the like in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, 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 "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0043] In an embodiment of the utility model, a combined X-ray source is provided, referring to Figure 1 manufacture Figure 4The combined X-ray source comprises a shell 1 and a ball tube module 8, a filament module, a voltage doubling module, a temperature sensor, a temperature switch and a cooling pump 9 arranged inside the shell 1.

[0044] The shell 1 is made of metal, preferably aluminum or aluminum alloy, which is light in weight and has good heat dissipation performance. The shell comprises a shell body and a cover plate 12, the cover plate 12 is sealingly connected with the shell body and forms a containing cavity in the shell body, the ball tube module 8, the filament module, the voltage doubling module, the temperature sensor, the temperature switch and the cooling pump 9 are arranged in the containing cavity, and the containing cavity is configured with transformer oil, wherein the cooling pump 9 is configured to control the circulation of the transformer oil in the containing cavity to improve the heat dissipation performance of the X-ray source. The temperature sensor is used to detect the internal temperature of the X-ray source, and the temperature switch is arranged in the containing cavity and electrically connected with the power supply module. When the temperature is higher than the preset temperature value, the temperature switch cuts off the power supply to stop the X-ray source from working, which can prevent the product from being too hot due to high oil temperature, avoid scalding the skin by accidentally touching the shell, and improve the use safety of the product.

[0045] A window 11 is arranged on the cover plate 12, and the ball tube module comprises a gas pipe and a stator, which are configured to emit X-rays to the outside of the shell 1 through the window 11. The inner wall surface of the shell 1 is provided with an insulating coating through a spraying process to increase its insulation performance and prevent it from being punctured by high pressure, and its inner surface is smooth without edges and corners, which can effectively prevent debris from being generated, avoid product sparking and sharp end discharge caused by debris, and prevent the transformer oil from corroding the aluminum shell.

[0046] The ball tube module, the voltage doubling module and the filament module are combined together, which can not only reduce the volume of the X-ray source, but also shorten the cable spacing between different components, reduce interference and improve product performance.

[0047] Referring to Figures 1 to 3 The voltage doubling module comprises a voltage doubling circuit assembly, a high-voltage transformer 21 and an insulating cover, the voltage doubling circuit assembly is arranged in the insulating cover, and the high-voltage transformer 21 is arranged outside the insulating cover. The voltage doubling circuit assembly is electrically connected with the high-voltage transformer 21 and the filament module respectively, and the high-voltage transformer 21 is electrically connected with the anode of the ball tube module. The magnetism of the high-voltage transformer 21 adopts ferrite, and the use of ferrite as the magnetic core of the transformer can realize low power consumption.

[0048] The filament module is electrically connected with the cathode of the bulb module. The filament module comprises a filament transformer 31, which is also arranged outside the insulating cover. The magnetism of the filament transformer 31 adopts a U-shaped ferrite, and the use of ferrite as the magnetic core of the transformer can realize low power consumption.

[0049] Specifically, the voltage doubling circuit assembly comprises a cathode voltage doubling circuit assembly and an anode voltage doubling circuit assembly, the cathode voltage doubling circuit assembly is arranged close to the filament module, and the anode voltage doubling circuit assembly is arranged close to the high-voltage transformer 21.

[0050] As shown in Figure 1 , the filament transformer 31, the cathode voltage doubling circuit assembly, the high-voltage transformer 21 and the anode voltage doubling circuit assembly are arranged from left to right in sequence.

[0051] The cathode voltage doubling circuit assembly comprises a plurality of cathode circuit boards 22, and the plurality of cathode circuit boards 22 are arranged in a stacked manner. First insulating plates 23 are arranged between two adjacent cathode circuit boards 22. Alternatively, first insulating plates 23 are arranged between two adjacent cathode circuit boards 22 with a distance less than a preset distance. As shown in the left side of Figure 1 , the stacked plate structure is arranged from top to bottom in sequence as a capacitor plate, a first insulating plate 23, a diode plate, a first insulating plate 23 and another capacitor plate. The capacitor plate is a circuit board provided with a capacitor device, the diode plate is a circuit board provided with a diode, and the capacitor plate and the diode plate constitute the cathode circuit board 22.

[0052] The anode voltage doubling circuit assembly comprises a plurality of anode circuit boards 24, and the plurality of anode circuit boards 24 are arranged in a stacked manner. First insulating plates 23 are arranged between two adjacent anode circuit boards 24; alternatively, first insulating plates 23 are arranged between two adjacent anode circuit boards 24 with a distance less than a preset distance. As shown in the right side of Figure 1 , the stacked plate structure is arranged from top to bottom in sequence as a capacitor plate, a first insulating plate 23, a diode plate, a first insulating plate 23 and another capacitor plate. The capacitor plate is a circuit board provided with a capacitor device, the diode plate is a circuit board provided with a diode, and the capacitor plate and the diode plate constitute the anode circuit board 24.

[0053] The insulating cover comprises a first insulating cover 41 and a second insulating cover 42. The cathode voltage doubling circuit assembly (including the first insulating plates between the circuit boards thereof) is arranged integrally in the first insulating cover 41. The anode voltage doubling circuit assembly (including the first insulating plates between the circuit boards thereof) is arranged integrally in the second insulating cover 42. The high-voltage transformer 21 is arranged between the first insulating cover 41 and the second insulating cover 42.

[0054] The material of the first insulating cover 41, the second insulating cover 42 and the first insulating plate 23 has high pressure resistance and high insulation performance.

[0055] The utility model discloses a high voltage plate (cathode circuit board and anode circuit board) is overlapped in the insulating material (first insulating plate) mode, and through increasing insulating cover respectively cover the outside of cathode voltage doubler circuit component and anode voltage doubler circuit component, the cathode voltage doubler circuit component, anode voltage doubler circuit component are isolated with the lamp filament transformer and the high voltage transformer, effectively increase the insulation ability and the high pressure resistance performance between internal electrical components.

[0056] In the embodiment, the combined X-ray source further comprises a second insulating plate 51, an air bag 6 and an aviation plug 71. The second insulating plate 51 is arranged between the voltage doubler module and the inner wall of the shell 1. The material of the second insulating plate 51 has high pressure resistance and high insulation performance, and the material thereof is preferably high-density polyethylene. The air bag 6 is arranged between the second insulating plate 51 and the inner wall of the shell 1. One end of the aviation plug 71 is arranged outside the shell 1, and the other end of the aviation plug 71 extends into the shell 1 and is electrically connected with the filament module.

[0057] Based on the above improvements, the combined X-ray source is suitable for a C-arm X-ray imaging system and can provide a high voltage of 40kV to 150kV for the C-arm system. The interface is an aviation plug, which can enhance the anti-electromagnetic signal interference ability, has good sealing effect and high reliability. The signal is transmitted to the filament module through the aviation plug to light the bulb filament, high voltage is applied to both ends of the bulb through the voltage doubler module, and the bulb generates X-ray under the joint action of the filament module and the voltage doubler module. The cooling pump and the aluminum shell increase the heat dissipation rate and enhance the heat capacity to strengthen the use efficiency of the X-ray source.

[0058] Through tests, the combined X-ray source provided by the utility model can make the working voltage reach 150kV, realize an X-ray source with low power consumption, high performance, small size and light weight, and make the shooting image clearer and the installation more convenient and labor-saving.

[0059] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components, and the term "an element" can include comparable reference to a plurality of elements. Also, as used in this specification and the appended claims, the term "or" as used in the context of "A / B or C" means any of the following: A; B; or C. Also, the term "comprising" as used in the claims should not be interpreted as being restricted to the means listed thereafter; it does not exclude other elements or steps. It is thus to be interpreted as specifying the presence of the stated features, integers, steps or components as referred to, but does not preclude the presence or addition of one or more other features, integers, steps or components, or groups thereof. Moreover, it is to be noted that the term "even if" as used in this specification is not to be interpreted as indicating an exception to a previously recited condition or characteristic, but rather is to be interpreted as meaning "for example" or "for instance."

[0060] The foregoing is merely illustrative of the principles of this application and various modifications can be made by those skilled in the art, without departing from the spirit and scope of the application. Such modifications are intended to be within the scope of the claims.

Claims

1. A combined X-ray source, characterized in that The shell (1) and the ball tube module (8), the filament module and the voltage doubling module arranged inside the shell (1) are included. The shell (1) is provided with a window (11), and the ball tube module (8) is configured to emit X-rays to the outside of the shell (1) through the window (11). The voltage doubling module includes a voltage doubling circuit assembly, a high-voltage transformer (21) and an insulating cover, the voltage doubling circuit assembly is arranged in the insulating cover, and the high-voltage transformer (21) is arranged outside the insulating cover. The voltage doubling circuit assembly is electrically connected with the high-voltage transformer (21) and the filament module respectively, the high-voltage transformer (21) is electrically connected with the anode of the ball tube module (8). The filament module is electrically connected with the cathode of the ball tube module (8).

2. The combined X-ray source of claim 1, characterized in that The filament module includes a filament transformer (31), and the filament transformer (31) is arranged outside the insulating cover.

3. The combined X-ray source of claim 1, wherein, The voltage doubling circuit assembly includes a cathode voltage doubling circuit assembly and an anode voltage doubling circuit assembly. The insulating cover includes a first insulating cover (41) and a second insulating cover (42). The cathode voltage doubling circuit assembly is arranged in the first insulating cover (41), and the anode voltage doubling circuit assembly is arranged in the second insulating cover (42).

4. The combined X-ray source of claim 3, characterized in that The high-voltage transformer (21) is arranged between the first insulating cover (41) and the second insulating cover (42); and / or, The material of the first insulating cover (41) is high-density polyethylene; and / or, The material of the second insulating cover (42) is high-density polyethylene.

5. The combined X-ray source of claim 3, wherein, The cathode voltage doubling circuit assembly includes a plurality of cathode circuit boards (22), and the plurality of cathode circuit boards (22) are arranged in layers. First insulating plates (23) are arranged between two adjacent cathode circuit boards (22); or first insulating plates (23) are arranged between two adjacent cathode circuit boards (22) with a distance less than a preset distance.

6. The combined X-ray source of claim 3, wherein, The anode voltage doubling circuit assembly includes a plurality of anode circuit boards (24), and the plurality of anode circuit boards (24) are arranged in layers. First insulating plates (23) are arranged between two adjacent anode circuit boards (24); or first insulating plates (23) are arranged between two adjacent anode circuit boards (24) with a distance less than a preset distance.

7. The combined X-ray source of claim 5 or 6, characterized in that The material of the first insulating plate (23) is high-density polyethylene.

8. The combined X-ray source of claim 1, wherein, A second insulating plate (51) is further included, and the second insulating plate (51) is arranged between the voltage doubling module and the inner wall of the shell (1).

9. The combined X-ray source of claim 8, characterized in that An air bag (6) is further included, and the air bag (6) is arranged between the second insulating plate (51) and the inner wall of the shell (1); and / or, The material of the second insulating plate (51) is high-density polyethylene.

10. The combined X-ray source of claim 1, wherein, The shell (1) is made of metal material, and an insulating coating is arranged on the inner wall surface of the shell (1); and / or, A temperature sensor is further included, and the temperature sensor is arranged inside the shell (1); and / or, A temperature switch is further included, and the temperature switch is arranged inside the shell (1) and electrically connected with the power module; and / or, Also included is an aviation plug, one end of which (71) is disposed outside the housing (1), the other end of which (71) extends to the inside of the housing (1) and is electrically connected with the filament module.

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