X-ray high-voltage power supply equipment based on LCC series resonance

Abstract

The utility model relates to the technical field of industrial X-ray high-voltage power supply equipment, in particular to X-ray high-voltage power supply equipment based on LCC series resonance, which comprises a case, an LCD case display screen and heat dissipation holes are sequentially arranged on the surface of one side of a case panel, resonance heat dissipation fins are arranged on the surface of the top end of a resonance fan, and the resonance heat dissipation fins are arranged on the surface of the top end of the resonance fan. An oil-immersed transformer and a control panel are sequentially arranged at the end part of the inner side surface of the bottom panel, and sawtooth-shaped cooling fins are arranged at the two end parts of the oil-immersed transformer, so that the problems that an existing X-ray high-voltage power supply is huge in size, devices in a case are disordered in arrangement, and the power consumption is low are solved through the design. The switch power supply cabinet does not have the characteristics of anti-electromagnetic interference capability, anti-short circuit characteristic and rapid protection and restart, and the distribution parameters of each device in the switch power supply cabinet are optimized at the same time. Besides, the equipment adopts an efficient heat dissipation technology including fan active heat dissipation and a heat dissipation structure combined with heat dissipation fins, so that stable operation and safety of the equipment are guaranteed, and functionality in the high-voltage conversion process is also guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial X-ray high-voltage power supply equipment, in particular to an X-ray high-voltage power supply equipment based on LCC series resonance. Background Art

[0002] A search of the existing Chinese patent document with publication number CN206656974U revealed a high-voltage interlock circuit for an X-ray detection system. The circuit comprises the following components: the negative terminal of a first intermediate relay coil is connected to a PLC door-opening signal terminal, the positive terminal of the first intermediate relay coil is connected to one end of a second intermediate relay's normally closed contact, the other end of the second intermediate relay's normally closed contact is connected to one end of a third intermediate relay, the other end of the third intermediate relay is respectively connected to one end of a normally closed contact of a door-opening limit switch and a high-voltage control circuit. The high-voltage control circuit is connected to the control terminal of an X-ray high-voltage generator, the other end of the normally closed contact of the door-opening limit switch is connected to one end of a normally closed contact of a thermal relay, and the other end of the normally closed contact of the thermal relay is connected to a switch power supply terminal. The device adds an interlock between the lead door and the high-voltage start-stop control, preventing the high-voltage radiation from being activated unless the lead door is fully closed. Furthermore, the lead door cannot be opened after the high-voltage radiation is activated, thereby effectively improving X-ray protection.

[0003] X-ray generation primarily involves the emission of electrons from a hot cathode within an X-ray tube. High voltages (typically ranging from tens to hundreds of thousands of volts) accelerate these electrons, causing them to travel at extremely high speeds. Therefore, the high-voltage power supply responsible for X-ray generation significantly impacts X-ray quality. However, current X-ray high-voltage power supplies not only have bulky transformers and filters, but also suffer from a chaotic arrangement of components within the switching power supply chassis. These power supplies lack electromagnetic interference immunity, short-circuit immunity, and rapid protection and restart capabilities, severely impacting the lifespan and quality of X-ray tubes. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide an X-ray high-voltage power supply device based on LCC series resonance, aiming to solve the technical problem that the current X-ray high-voltage power supply is not only bulky in transformer and filter, but also has a chaotic arrangement of components in the switching power supply chassis, lacks anti-electromagnetic interference capability, anti-short-circuit characteristics, and fast protection and restart characteristics, which seriously affects the life and quality of the X-ray tube.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses an X-ray high-voltage power supply device based on LCC series resonance, comprising a chassis, the chassis comprising a bottom panel, a chassis panel and a chassis back panel are respectively arranged on the surfaces at both ends of the bottom panel, shock-absorbing modules are arranged at the four corners of the bottom surface of the bottom panel, a grip is arranged at both ends of the surface of one side of the chassis panel, an LCD chassis display screen and heat dissipation holes are arranged on the surface of one side of the chassis panel in sequence, a lock is arranged at the lower part of the LCD chassis display screen, an air outlet and a 3P power input terminal are arranged on the end of the surface of one side of the chassis back panel in sequence from top to bottom, a fan is arranged on the inner surface of the air outlet, and a fan is arranged on the other end of the surface of one side of the chassis back panel in sequence from top to bottom. There are heat dissipation holes and an output panel. The surface of one side of the output panel is provided with an aviation socket and an output port from left to right in sequence. The middle of the inner surface of the bottom panel is provided with a resonant cavity and a switching power supply in sequence. A resonant fan is provided inside the resonant cavity. A resonant heat sink is provided on the top surface of the resonant fan. Support feet are provided at both ends of the two side surfaces of the switching power supply. An oil-immersed transformer and a control board are provided in sequence at the ends of the inner surface of the bottom panel. Serrated heat sinks are provided at both ends of the oil-immersed transformer. Transformer fixing holes are provided at both ends of the serrated heat sink. Coil assemblies are provided on both sides of the inner side of the oil-immersed transformer. A wiring terminal is provided on the surface of one end of the control board.

[0007] As a further description of the above technical solution:

[0008] The bottom panel is fixedly connected to the chassis panel and the chassis back panel, and is fixed by bolts. The bottom panel is fixedly connected to the shock absorbing module, and the shock absorbing module is arranged in four groups. The chassis panel is fixedly connected to the handle, and the handle is symmetrically arranged.

[0009] As a further description of the above technical solution:

[0010] The chassis panel and the LCD chassis display screen lock are fixedly connected, the LCD chassis display screen is electrically connected to the switching power supply, the chassis back panel and the fan are spliced ​​and assembled, the output panel and the aviation socket and the output port are fixedly connected, and the aviation socket is set in two groups, namely 4P socket and 3P socket.

[0011] As a further description of the above technical solution:

[0012] The bottom panel is spliced ​​and assembled with the resonant fan, switching power supply, oil-immersed transformer and control panel, and they are all fixed to the inner surface of the bottom panel by bolts. The switching power supply is fixedly connected to the supporting feet, which are arranged in four groups and have fixing holes on the inner surface. The oil-immersed transformer is fixedly connected to the coil assembly, and the coil assembly includes a secondary coil and a primary coil.

[0013] The utility model has the following beneficial effects:

[0014] This design addresses the current challenges of bulky X-ray high-voltage power supplies, including a chaotic layout of components within the chassis, a lack of electromagnetic interference immunity, short-circuit resistance, and rapid protection and restart. It also optimizes the distribution parameters of components within the switching power supply chassis. Furthermore, the device utilizes highly efficient heat dissipation technology, including active fan cooling and a heat sink-integrated heat dissipation structure. This not only ensures stable operation and safety, but also ensures functionality during high-voltage conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall internal structure of the utility model;

[0017] Figure 2 This is a bottom panel schematic diagram of the present invention;

[0018] Figure 3 It is a plane schematic diagram of the chassis panel of the present utility model;

[0019] Figure 4 It is a plan view of the back panel of the chassis of the present invention;

[0020] Figure 5 It is a schematic plan view of the inner surface of the bottom panel of the present invention;

[0021] In the figure: 1. Bottom panel; 2. Chassis panel; 3. Chassis back panel; 4. Shock absorption module; 5. Grip; 6. LCD chassis display; 7. Heat dissipation holes; 8. Lock; 9. Air outlet; 10. 3P power input terminal; 11. Fan; 12. Output panel; 13. Aviation socket; 14. Output port; 15. Resonant cavity; 16. Switching power supply; 17. Resonant fan; 18. Resonant heat sink; 19. Support foot; 20. Oil-immersed transformer; 21. Control board; 22. Serrated heat sink; 23. Transformer fixing hole; 24. Coil assembly; 25. Terminal block. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0023] In the drawings, the same reference numerals all refer to the same components.

[0024] Example 1

[0025] Reference Figure 1-5 The utility model provides an embodiment: an X-ray high-voltage power supply device based on LCC series resonance, including a chassis, the chassis including a bottom panel 1, a chassis panel 2 and a chassis back panel 3 are respectively provided on the two end surfaces of the bottom panel 1, a shock-absorbing module 4 is provided at the four corners of the bottom surface of the bottom panel 1, a handle 5 is provided at both ends of one side surface of the chassis panel 2, an LCD chassis display 6 and a heat dissipation hole 7 are sequentially provided on one side surface of the chassis panel 2, a lock buckle 8 is provided at the lower part of the LCD chassis display 6, an air outlet 9 and a 3P power input terminal 10 are sequentially provided on the end of one side surface of the chassis back panel 3 from top to bottom, a fan 11 is provided on the inner surface of the air outlet 9, and a heat dissipation hole 7 is sequentially provided on the other end of one side surface of the chassis back panel 3 from top to bottom. And the output panel 12, the output panel 12 side surface is provided with the navigation socket 13 and the output port 14 from left to right, the middle of the inner surface of the bottom panel 1 is provided with the resonance cavity 15 and the switching power supply 16 in sequence, the inner side of the resonance cavity 15 is provided with a resonance fan 17, the top surface of the resonance fan 17 is provided with a resonance heat sink 18, the switching power supply 16 two side surfaces are provided with support feet 19 at both ends, the inner surface end of the bottom panel 1 is provided with an oil-immersed transformer 20 and a control board 21 in sequence, the oil-immersed transformer 20 is provided with a serrated heat sink 22 at both ends, the serrated heat sink 22 is provided with a transformer fixing hole 23 at both ends, the inner side of the oil-immersed transformer 20 is provided with a coil assembly 24, and the control board 21 is provided with a terminal 25 at one end surface.

[0026] The bottom panel 1, the chassis panel 2 and the chassis back panel 3 are all spliced ​​and assembled, and they are all fixed by bolts. The bottom panel 1 and the shock-absorbing module 4 are fixedly connected, and the shock-absorbing module 4 is set in four groups. The chassis panel 2 and the handle 5 are fixedly connected, and the handle 5 is symmetrically set.

[0027] The chassis panel 2 and the LCD chassis display screen 6 lock 8 are both fixedly connected, the LCD chassis display screen 6 and the switching power supply 16 are electrically connected, the chassis back panel 3 and the fan 11 are spliced ​​and assembled, the output panel 12 and the aviation socket 13 and the output port 14 are both fixedly connected, and the aviation socket 13 is set in two groups, namely a 4P socket and a 3P socket.

[0028] The bottom panel 1 is assembled with the resonant fan 17, the switching power supply 16, the oil-immersed transformer 20 and the control panel 21, and they are all fixed to the inner surface of the bottom panel 1 by bolts. The switching power supply 16 and the supporting feet 19 are fixedly connected, and the supporting feet 19 are arranged in four groups, and fixing holes are provided on the inner surface. The oil-immersed transformer 20 and the coil assembly 24 are fixedly connected, and the coil assembly 24 includes a secondary coil and a primary coil.

[0029] Specifically, its structure consists of a bottom panel 1, a chassis panel 2, a chassis back panel 3, a shock-absorbing module 4, a handle 5, an LCD chassis display 6, a heat dissipation hole 7, a lock 8, an air outlet 9, a 3P power input terminal 10, a fan 11, an output panel 12, an air socket 13, an output port 14, a resonant cavity 15, a switching power supply 16, a resonant fan 17, a resonant heat sink 18, a support foot 19, an oil-immersed transformer 20, a control board 21, a serrated heat sink 22, a transformer fixing hole 23, a coil assembly 24 and a terminal 25 to form an X-ray high-voltage power supply device based on LCC series resonance. The X-ray high-voltage power supply device based on LCC series resonance adopts a 4U chassis specification bottom panel 1, chassis panel 2, chassis back The plate 3 is made of a metal plate with high strength and good thermal conductivity. The chassis panel 2 is located on the front of the device and is mainly used to display and monitor the chassis status, and has both safety and protection functions. The shock-absorbing module 4 is composed of a silicone layer and is fixed to the bottom panel 1 with bolts. It can effectively absorb and disperse the energy generated by the chassis when it is subjected to external impact or vibration, thereby reducing the damage to the hardware equipment inside the chassis caused by impact and vibration. The handle 5 is ergonomic, which makes it convenient for the operator to move or adjust the position of the device, thereby improving the portability and ease of operation of the device. The LCD chassis display 6 displays various parameters of the switching power supply in real time, and has a touch screen function, so that the user can easily adjust the screen display parameters. There are multiple areas on each side of the chassis. The heat dissipation holes 7 are arranged in an optimized manner, which effectively promotes the rapid dissipation of heat inside the chassis and ensures the stable performance and long life of the switching power supply under high-load operation. The lock 8 is located on the chassis panel 2 and is used to lock the front panel or side panel to prevent non-professionals from misoperating or unauthorized access, thereby protecting the safety of the internal components of the chassis. The air outlet 9 is located on the back panel 3 of the chassis and is used for gas exchange between the internal fan 11 and the outside to facilitate heat dissipation. The 3P power input terminal 10 provides a stable and efficient power supply for various hardware devices in the chassis. When the power of the chassis switching power supply increases and more heat is generated, the fan 11 drives the air flow through rotation to dissipate the heat inside the switching power supply to the external environment. , ensuring that the switching power supply can work stably at an appropriate temperature, the output panel 12 is used to connect external devices and interfaces, and there are expansion slots for installing various expansion cards, such as serial port cards, parallel port cards, graphics cards, etc., to meet the needs of different application scenarios, the switching power supply output port is divided into a 4-core aviation socket and a 3-core aviation socket through the aviation socket 13, and the output port 14 is mainly used to connect external devices, which can be connected to various expansion cards. It can also be used to connect wiring harnesses to power external devices. Since the resonant cavity 15 will generate more heat, a resonant fan 17 is required to drive air flow to dissipate the internal heat to the external environment, and the switching power supply 16 is used to achieve AC to DC conversion to stabilize the output voltage and current.The resonant heat sink 18 is made of a metal with high strength and good thermal conductivity, which improves the heat dissipation efficiency of the equipment and helps to maintain the equipment running at an appropriate temperature. The support feet 19 provide stable physical support for the switching power supply to ensure that it can remain stable in various working environments and avoid damage or performance degradation due to vibration or movement. At the same time, the mounting holes are used to fix the switching power supply 16 in a specific position. The oil-immersed transformer 20 is an important component of voltage conversion. During the voltage conversion process of the transformer, the ratio of the number of turns of the secondary winding to the number of turns of the primary winding and the connection relationship of each secondary winding determine the output voltage. The power output is adjusted and stabilized by the control board 21. By controlling the converter, voltage stabilizer and other components of the power supply, the output voltage and current are kept stable to meet the power supply requirements of different devices. The serrated heat sink 22 has a serrated structure that increases the heat dissipation area in contact with the air, thereby improving the heat dissipation efficiency of the device. The transformer fixing hole 23 is used to fix the transformer in a specific position and is used in conjunction with the M4 self-locking nut to ensure the stability and safety of the device during operation. The secondary coil of the coil assembly 24 is responsible for converting the magnetic flux generated by the primary coil into high voltage electricity; the primary coil is responsible for receiving the input low-voltage AC signal and generating magnetic flux in the magnetic core. The precision of the coil turns ratio Precise control enables efficient conversion from low voltage to high voltage. Terminals 25 are primarily responsible for communicating with the LCD display 6, collecting voltage and current data in real time and displaying them on the screen. This makes the LCC series resonance-based X-ray high-voltage power supply, housed in a 4U chassis, an ideal power supply solution for numerous industries thanks to its superior heat dissipation performance, user-friendly interface, flexible power access methods, diverse output interfaces, highly integrated modular design, precise voltage conversion capabilities, excellent heat dissipation, stable mounting and buffering design, and easy maintenance. Its highly efficient heat dissipation design, featuring a high-strength, highly thermally conductive metal casing, dense heat dissipation holes 7, and a built-in high-efficiency fan 11, ensures long-term stability and reliability, effectively extending the device's service life. The system also features a user-friendly interface, equipped with a high-definition LCD display 6 and a front panel with a lock 8, allowing users to easily adjust screen settings. The ergonomically designed front panel facilitates operation and maintenance, employing a highly integrated and modular design concept, integrating key components such as the fan 11, switching power supply 16, resonant cavity 15, oil-immersed transformer 20, and control board 21. This design not only optimizes space utilization but also makes equipment maintenance and upgrades easier and faster. For added stability, a silicone cushioning module 4 is featured on the bottom of the chassis, securely attached to the bottom panel 1 via screws. This effectively absorbs external vibration and shock, protecting the safety and stability of internal components.

[0030] Operating Principle: Using power conversion technology, low-voltage input power is converted into stable high-voltage DC or AC output power through steps such as boosting, rectification, filtering, and voltage regulation. Input power from the mains or three-phase grid is boosted by an oil-immersed transformer 20, converting the low-voltage AC power into the required high-voltage AC power. This high-voltage AC power then enters the rectification stage, where it is converted into pulsating DC power via a full-bridge or half-bridge rectifier circuit. The rectified voltage signal is filtered by an LCC resonant cavity to eliminate harmonic interference, ensuring that the output closely matches the ideal high-voltage DC power. To ensure output voltage stability and accuracy, the high-voltage power supply is equipped with a voltage regulator and feedback control system. These systems monitor the output voltage in real time and display it on the LCD display 6. The user adjusts the power supply's operating status based on the set values, achieving closed-loop control. The output voltage remains constant even with varying loads or input voltage fluctuations.

[0031] Usage process:

[0032] ① Before using the X-ray high-voltage power supply, check whether the operating area is spacious enough to avoid the high-voltage power supply being too close to surrounding objects.

[0033] ② Plug the power cord into the power socket and make sure it matches the socket. Check whether the power socket is well grounded to ensure safety.

[0034] ③At this time, the LCD display screen 6 lights up, and press the power switch on the LCD display screen 6 to turn on the high-voltage power supply. At this time, you should pay attention to the status of the indicator light and the LCD display screen 6 to confirm that the high-voltage power supply has started working.

[0035] ④After starting the device, set the required output voltage and current values ​​through the control panel as needed.

[0036] ⑤ Connect the output end of the high-voltage power supply to the device to be powered through the terminal block 25 or the connecting wire. Ensure that the connecting wire, terminal block 25 and other components are firmly connected and not loose.

[0037] ⑥ During the operation of the equipment, regularly monitor the output voltage and current values ​​to ensure that they are within the set range. If any abnormal situation occurs (such as overcurrent, overvoltage, etc.), the power supply should be stopped immediately and the cause should be checked.

[0038] ⑦ When the equipment completes its power supply needs or needs to interrupt the power supply, release the power switch to stop the high-voltage power supply.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An X-ray high-voltage power supply device based on LCC series resonance, comprising a chassis, characterized in that: The chassis comprises a bottom panel (1), and the two end surfaces of the bottom panel (1) are respectively provided with a chassis panel (2) and a chassis back panel (3), and the four corners of the bottom end surface of the bottom panel (1) are provided with a shock absorbing module (4), and the two end portions of the one side surface of the chassis panel (2) are provided with a handle (5), and the one side surface of the chassis panel (2) is provided with an LCD chassis display (6) and a heat dissipation hole (7) in sequence, and a lock buckle (8) is provided at the lower part of the LCD chassis display (6), and the end portion of the one side surface of the chassis back panel (3) is provided with an air outlet (9) and a 3P power input terminal (10) in sequence from top to bottom, and a fan (11) is provided on the inner surface of the air outlet (9), and the other end portion of the one side surface of the chassis back panel (3) is provided with a heat dissipation hole (7) and an output panel (12) in sequence from top to bottom, and the one side surface of the output panel (12) is provided with a heat dissipation hole (7) and an output panel (12) in sequence from left to right. An air socket (13) and an output port (14) are sequentially provided. A resonant cavity (15) and a switching power supply (16) are sequentially provided in the middle of the inner surface of the bottom panel (1). A resonant fan (17) is provided inside the resonant cavity (15). A resonant heat sink (18) is provided on the top surface of the resonant fan (17). Support legs (19) are provided at both ends of the two side surfaces of the switching power supply (16). An oil-immersed transformer (20) and a control board (21) are sequentially provided at the ends of the inner surface of the bottom panel (1). Both ends of the oil-immersed transformer (20) are provided with serrated heat sinks (22). Both ends of the serrated heat sinks (22) are provided with transformer fixing holes (23). Coil assemblies (24) are provided on both sides of the inner side of the oil-immersed transformer (20). A connection terminal (25) is provided on one end surface of the control board (21).

2. The X-ray high-voltage power supply device based on LCC series resonance according to claim 1, characterized in that: The bottom panel (1), the chassis panel (2) and the chassis back panel (3) are all spliced ​​and assembled, and are all fixed by bolt connection. The bottom panel (1) and the shock-absorbing module (4) are fixedly connected, and the shock-absorbing module (4) is arranged in four groups. The chassis panel (2) and the handle (5) are fixedly connected, and the handle (5) is symmetrically arranged.

3. The X-ray high-voltage power supply device based on LCC series resonance according to claim 1, characterized in that: The chassis panel (2) and the LCD chassis display screen (6) lock (8) are all fixedly connected, the LCD chassis display screen (6) is electrically connected to the switching power supply (16), the chassis back panel (3) and the fan (11) are spliced ​​and assembled, the output panel (12) and the aviation socket (13) and the output port (14) are all fixedly connected, and the aviation socket (13) is provided in two groups, namely a 4P socket and a 3P socket.

4. The X-ray high-voltage power supply device based on LCC series resonance according to claim 1, characterized in that: The bottom panel (1) is assembled with the resonant fan (17), the switching power supply (16), the oil-immersed transformer (20) and the control panel (21), and is fixed to the inner surface of the bottom panel (1) by bolt connection. The switching power supply (16) is fixedly connected to the supporting legs (19), and the supporting legs (19) are arranged in four groups, with fixing holes provided on the inner surface. The oil-immersed transformer (20) is fixedly connected to the coil assembly (24), and the coil assembly (24) includes a secondary coil and a primary coil.

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