X-ray source
By designing uniformly distributed capacitors on high-voltage circuit boards and connecting them through high-voltage diodes, the problem of electric field is solved, and the electric field is uniformly distributed, which extends the device life and improves circuit stability. It is suitable for industrial detection of X-ray sources.
Patent Information
- Application Number
- CN202420977046.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The uneven distribution of electric fields in existing high-voltage circuit boards leads to damage to components, especially in the tiling mode, which easily leads to irregular motion and sparks, affecting the uniformity of electric fields between devices.
The first circuit board and the second circuit board are adopted to uniformly distribute the capacitors and are connected through high-voltage diodes. There is a spacing of more than 5 mm between the capacitors to achieve uniform distribution of the electric field and the capacitors are connected in series to improve the stability of the electric field.
Effectively and evenly distribute the electric field, extend device life, improve circuit performance and stability, reduce the design volume of high-voltage plates, and is suitable for single-ended and double-ended high-voltage power supplies.
Smart Images
Figure CN222263098U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of X-ray sources and relates to an X-ray source. Background Art
[0002] The X-ray source is composed of a high-voltage generator and an X-ray tube. The high-voltage generator outputs a DC high voltage to supply the X-ray tube with electrons, and the electrons collide with the target surface to generate X-rays. The electric field strength of the circuit board in the high-voltage power supply is related to the bearing capacity of components in various places in the circuit board. Especially in the circuit board of the high-voltage circuit, if the electric field strength of the circuit board is uneven, it will cause damage to the components. Therefore, the field strength of each component area in the circuit board is equal in magnitude and direction, which can reduce the damage phenomenon of the components. The high-voltage electric field can provide powerful kinetic energy for charged particles, and it is easy to cause particles with different charges to collide in irregular motion to produce sparks and form arcs. Now most companies use a tiling method to arrange high-voltage devices when designing high-voltage circuits, which is not conducive to the uniform distribution of the electric field between devices. Summary of the invention
[0003] The utility model aims to solve the above problems in the prior art and proposes an X-ray source to solve the problem that arranging high-voltage devices in a flat manner is not conducive to uniform distribution of the electric field between the devices.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] An X-ray source, characterized in that it includes a first circuit board and a second circuit board, a row of capacitors C1-C10 are evenly distributed on the first circuit board, a row of capacitors C11-C20 are evenly distributed on the second circuit board, the first circuit board and the second circuit board are connected through a high-voltage diode, the capacitor C1 is connected to the secondary of the transformer, the corresponding relationship between the capacitors of the first circuit board and the second circuit board is C2 / C11, C3 / C12, C4 / C13, C5 / C14, and so on, and the capacitors on the first circuit board and the second circuit board are respectively connected in series.
[0006] In the above X-ray source, there is a distance of more than 5 mm between the capacitors of the first circuit board and the capacitors of the second circuit board.
[0007] Compared with the prior art, the utility model has the following advantages:
[0008] This patent can be applied to single-ended high-voltage power supplies and double-ended high-voltage power supplies, and can effectively distribute the electric field evenly, extend the life of the device, improve circuit performance and stability, and improve the compatibility of capacitors; reduce the distribution area of the high-voltage board, which is conducive to reducing the design volume of the high-voltage power supply, and can also be used in the design of various industrial detection X-ray sources. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the utility model.
[0010] In the figure,
[0011] 1. First circuit board; 2. Second circuit board; 3. High-voltage diode. DETAILED DESCRIPTION
[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0013] like Figure 1 As shown,
[0014] An X-ray source, characterized in that it includes a first circuit board 1 and a second circuit board 2, a row of capacitors C1-C10 are evenly distributed on the first circuit board 1, a row of capacitors C11-C20 are evenly distributed on the second circuit board 2, the first circuit board 1 and the second circuit board 2 are connected through a high-voltage diode 3, the capacitor C1 is connected to the secondary of the transformer, the corresponding relationship between the capacitors of the first circuit board 1 and the second circuit board 2 is C2 / C11, C3 / C12, C4 / C13, C5 / C14, and so on, and the capacitors on the first circuit board 1 and the second circuit board 2 are respectively connected in series.
[0015] In this embodiment, the transformer input voltage is positive at the top and negative at the bottom in the first half cycle of the power supply voltage. At this time, the diode is turned on and the capacitor C1 is charged until its voltage is equal to the power supply voltage. Then, in the second half cycle of the power supply voltage, the voltage is positive at the bottom and negative at the top. The diode is turned on and the capacitor C11 is charged until its voltage is equal to the power supply voltage plus the voltage of the capacitor, which is equal to twice the transformer output peak voltage. In this way, each capacitor is fully charged. The voltage on each capacitor on the second circuit board 2 is equal to twice the transformer output peak voltage. The voltage on each capacitor on the first circuit board 1, except C1, is twice the peak voltage. The voltage on the capacitor C1 connected to the secondary side of the transformer is the peak value of the transformer secondary output. The capacitors on the first circuit board 1 and the second circuit board 2 are connected in series respectively. The output voltage of the capacitor with the lower row of capacitors as the high-voltage output capacitor is twice the peak voltage multiplied by the number of series capacitors. The voltages that can be output by the upper and lower corresponding capacitors are equal, so that a relatively small uniform electric field is obtained between the two capacitors, which can effectively simulate the discharge between the upper and lower capacitors, thereby protecting the components and increasing the service life of the components.
[0016] In this embodiment, there is a distance of more than 5 mm between the capacitors of the first circuit board 1 and the capacitors of the second circuit board 2. The distance between the upper and lower capacitors is required to be more than 5 mm, which is conducive to filling with insulating materials and further improving the stability and reliability of the circuit.
[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0018] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0019] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.
[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An X-ray source, characterized in that: The invention comprises a first circuit board (1) and a second circuit board (2), wherein a row of capacitors C1-C10 are evenly distributed on the first circuit board (1), and a row of capacitors C11-C20 are evenly distributed on the second circuit board (2), the first circuit board (1) and the second circuit board (2) are connected via a high-voltage diode (3), the capacitor C1 is connected to the secondary of a transformer, the corresponding relationship between the capacitors of the first circuit board (1) and the second circuit board (2) is C2 / C11, C3 / C12, C4 / C13, C5 / C14, and so on, and the capacitors on the first circuit board (1) and the second circuit board (2) are respectively connected in series.
2. The X-ray source according to claim 1, characterized in that There is a distance of more than 5 millimeters between the capacitor of the first circuit board (1) and the capacitor of the second circuit board (2).