X-ray high-voltage generator

Abstract

The invention relates to the technical field of X-ray sources, and discloses an X-ray high-voltage generator which comprises a TANK barrel, a TANK inner core, an X-ray tube assembly and a bottom end cover assembly. The TANK inner core is arranged inside the TANK barrel, the X-ray tube assembly is connected with the top end of the TANK barrel, and the X-ray tube assembly is connected with the TANK inner core; the bottom end cover assembly is connected with the bottom end of the TANK barrel; the TANK inner core comprises a main insulating cylinder and a middle supporting and isolating main insulating plate, the middle supporting and isolating main insulating plate is arranged in the main insulating cylinder, the middle supporting and isolating main insulating plate is configured to divide the internal space of the main insulating cylinder into two sub-spaces, when electronic components in the TANK inner core are placed, the electronic components are placed in the two sub-spaces according to requirements, and the electronic components are placed in the two sub-spaces; therefore, the overall structure of the TANK inner core is more compact, and the overall size of the X-ray high-voltage generator is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of X-ray sources, and in particular to an X-ray high voltage generator. Background Art

[0002] X-ray detection equipment is currently widely used in industrial non-destructive testing. The most common application is pipeline flaw detection, which can detect cracks, inclusions, pores, etc. inside the pipeline. X-ray high-voltage generator is the core component of X-ray detection equipment. It is mainly responsible for generating high voltage, acting on the X-ray tube to generate X-rays.

[0003] Traditional X-ray flaw detectors are mostly industrial frequency machines, which directly increase the industrial frequency voltage to high voltage through a transformer. They have a relatively simple structure, and their volume is affected by the transformer, so they have a large diameter. They use open-loop control, and the tube voltage (kV value) and tube current (mA value) are affected by the input voltage, and fluctuate greatly. In addition, because the voltage is an alternating voltage, the efficiency of generating X-rays is low, the soft ray dose is high, and the X-ray image accuracy is low.

[0004] In recent years, due to the development of power electronics technology, through inverter rectification technology, X-ray flaw detectors have gradually developed towards high-frequency DC machines. High-frequency DC machines use closed-loop control, with stable tube voltage (kV value) and tube current (mA value), small weight, light volume, high X-ray efficiency, low soft ray dose, and high X-ray image accuracy.

[0005] The high-frequency X-ray high-voltage generator converts AC low voltage into AC high voltage through the main transformer, and then converts the AC voltage into DC high voltage again through the voltage doubler. The high voltage acts on the X-ray tube to generate X-rays. The industrial X-ray high-voltage generator needs to penetrate a thicker metal layer, so the voltage it needs to generate is also higher, ranging from 160kV to 300kV. For pipeline flaw detection, in order to ensure heat dissipation and end ray position, anode grounded X-ray tubes are often used.

[0006] However, the X-ray tube used above has a probability of sparking during operation, and the length of the spark suppression resistor is usually lengthened to ensure the insulation margin, but this will also cause the length of the X-ray generator to become longer and the volume to become larger. Summary of the invention

[0007] In view of this, the present invention provides an X-ray high voltage generator to solve the problem of long length and large volume of the X-ray generator.

[0008] In a first aspect, the present invention provides an X-ray high voltage generator, comprising:

[0009] TANK cylinder;

[0010] A TANK core is arranged inside the TANK cylinder;

[0011] An X-ray tube assembly is connected to the top of the TANK cylinder, and the X-ray tube assembly is electrically connected to the TANK core;

[0012] A bottom end cover assembly connected to the bottom end of the TANK cylinder;

[0013] The TANK core includes a main insulating cylinder and an intermediate supporting and isolating main insulating plate, wherein the intermediate supporting and isolating main insulating plate is arranged inside the main insulating cylinder, and the intermediate supporting and isolating main insulating plate is configured to divide the internal space of the main insulating cylinder into two subspaces;

[0014] The two subspaces are suitable for placing electronic components in the TANK core.

[0015] By providing a main insulating tube and an intermediate supporting and isolating main insulating plate, and the intermediate supporting and isolating main insulating plate is provided inside the main insulating tube to divide the internal space of the main insulating tube into two sub-spaces, when placing electronic components in the TANK core, the electronic components are placed in the two sub-spaces according to needs, making the overall structure of the TANK core more compact, thereby reducing the overall volume of the X-ray high-voltage generator.

[0016] In an optional embodiment, the TANK core further includes a spark suppression resistor assembly, which is disposed in the main insulating cylinder and electrically connected to the X-ray tube assembly;

[0017] The spark suppression resistor assembly comprises:

[0018] An insulating shell, wherein the insulating shell is divided into an X-ray tube installation cavity and a spark suppression resistor glue filling groove by an internal partition plate;

[0019] A PCB adapter plate is disposed in the X-ray tube installation cavity, and the PCB adapter plate is electrically connected to the X-ray tube assembly;

[0020] A plurality of spark suppression resistors are installed in series in a zigzag shape in the spark suppression resistor glue filling groove, and the high-voltage output end of the spark suppression resistor is electrically connected to the PCB adapter board.

[0021] By arranging the spark suppression resistors in a zigzag arrangement and potting or not potting the spark suppression resistors with potting glue, discharge between the spark suppression resistors can be prevented when a spark failure occurs in the X-ray tube.

[0022] In an optional embodiment, the TANK core further includes a plurality of voltage-equalizing rings, and an insulating partition is provided between two adjacent voltage-equalizing rings;

[0023] Among them, the top of the equalizing ring at the high-pressure end is a closed structure.

[0024] In an optional embodiment, the thickness of the high-voltage area of ​​the main insulating tube is greater than that of the low-voltage area, and creepage-enhancing grooves are provided on the inner walls of the upper and lower ends of the main insulating tube.

[0025] Creepage grooves are set on the upper and lower parts of the main insulating tube. A closed-end high-voltage grading ring is used at the high-voltage end to equalize the electric field. Creepage grooves are set on the upper and lower ends of the main insulating tube to increase the creepage distance, making the electric field inside the TANK more uniform.

[0026] In an optional embodiment, the X-ray tube assembly comprises:

[0027] An X-ray tube, adapted to be electrically connected to the PCB adapter plate;

[0028] An X-ray tube fixing insulating cover is sleeved on the outside of the X-ray tube;

[0029] Wherein, the X-ray tube fixing insulating cover and the insulating shell are installed in staggered layers.

[0030] In an optional embodiment, the X-ray tube assembly further comprises an electrical connection assembly electrically connected to the X-ray tube, wherein the electrical connection assembly comprises a plurality of spring contacts, and all of the spring contacts are suitable for abutting and electrically connecting to the PCB adapter board.

[0031] In an optional embodiment, the X-ray tube assembly further includes:

[0032] A fixed radiator connected to the X-ray tube, the X-ray tube fixed insulating cover connected to the fixed radiator, and a placement space for placing the X-ray tube is formed between the fixed radiator and the X-ray tube fixed insulating cover;

[0033] A fan is connected to the fixed radiator.

[0034] In an optional embodiment, the X-ray tube assembly further comprises a cathode support, wherein the cathode support is arranged between the X-ray tube fixing insulating cover and the X-ray tube.

[0035] In an optional implementation, the TANK kernel further includes:

[0036] A fixed bracket, one side of which is connected to an end of the main insulating cylinder away from the X-ray tube assembly, and the other side of the fixed bracket is connected to the bottom mounting plate;

[0037] The pressure regulating member is arranged in the space between the fixing bracket and the bottom mounting plate.

[0038] In an optional implementation, the TANK kernel further includes:

[0039] A voltage doubling component is arranged inside one of the subspaces, the voltage doubling component is connected to the voltage grading ring at the same potential, and the high-voltage end voltage grading ring and the high-voltage end output end of the voltage doubling plate in the voltage doubling component are at the same potential;

[0040] The main transformer and the filament transformer assembly are arranged inside another of the subspaces.

[0041] The X-ray high voltage generator provided by the present invention has the following advantages:

[0042] 1. The present invention provides an X-ray high-voltage generator, wherein a TANK core is arranged inside a TANK cylinder, an X-ray tube assembly is connected to the top of the TANK cylinder, and the X-ray tube assembly is electrically connected to the TANK core; a bottom end cover assembly is connected to the bottom of the TANK cylinder; wherein the TANK core comprises a main insulating cylinder and an intermediate supporting and isolating main insulating plate, the intermediate supporting and isolating main insulating plate is arranged inside the main insulating cylinder, and the intermediate supporting and isolating main insulating plate is configured to divide the internal space of the main insulating cylinder into two sub-spaces; the two sub-spaces are suitable for placing electronic components in the TANK core.

[0043] The X-ray high-voltage generator of this structure is provided with a main insulating tube and an intermediate supporting and isolating main insulating plate, and the intermediate supporting and isolating main insulating plate is arranged inside the main insulating tube for dividing the internal space of the main insulating tube into two sub-spaces. When placing electronic components in the TANK core, the electronic components are placed in the two sub-spaces according to needs, so that the overall structure of the TANK core is more compact, thereby reducing the overall volume of the X-ray high-voltage generator.

[0044] 2. The present invention provides an X-ray high voltage generator, wherein the TANK core further comprises a spark suppression resistor assembly, which is arranged in the main insulating tube and electrically connected to the X-ray tube assembly.

[0045] The spark suppression resistor assembly includes an insulating shell, a PCB adapter board and a plurality of spark suppression resistors. The insulating shell is divided into an X-ray tube mounting cavity and a spark suppression resistor glue pouring groove by an internal partition plate; the PCB adapter board is arranged in the X-ray tube mounting cavity, and the PCB adapter board is electrically connected to the X-ray tube assembly; the plurality of spark suppression resistors are installed in series in a zigzag shape in the spark suppression resistor glue pouring groove, and the high-voltage output end of the spark suppression resistor is electrically connected to the PCB adapter board.

[0046] The X-ray high voltage generator of this structure can prevent discharge between the spark suppression resistors when a spark failure occurs in the X-ray tube by arranging the spark suppression resistors in a zigzag shape and using a potting glue to pot or not pot the spark suppression resistors.

[0047] 3. The present invention provides an X-ray high-voltage generator, wherein the TANK core further comprises a plurality of grading rings, and an insulating partition is provided between two adjacent grading rings; wherein the top of the grading ring at the high-voltage end is a closed structure. The thickness of the high-voltage area of ​​the main insulating tube is greater than that of the low-voltage area, and the inner walls of the upper and lower ends of the main insulating tube are provided with creepage-increasing grooves.

[0048] In this structure of X-ray high-voltage generator, a grading ring is added to the high-voltage end. The grading ring potential selects a fixed potential from the voltage doubler assembly for equipotential connection. An insulating partition is set between the grading rings to prevent discharge between the grading rings. The high-voltage grading ring is at the same potential as the high-voltage output end of the voltage doubler. The top of the grading ring is designed with a closed end. The main insulating tube is designed with a variable diameter. The thickness of the high-voltage area is thick and the thickness of the low-voltage area is thin. Creeping grooves are set on the upper and lower ends of the main insulating tube. The high-voltage end uses a closed-end high-voltage grading ring to equalize the electric field, and creeping grooves are set on the upper and lower ends of the main insulating tube to increase the creepage distance, so that the electric field inside the TANK is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 An exploded view of an X-ray high voltage generator provided in an embodiment of the present invention;

[0051] Figure 2 It is a structural schematic diagram of the TANK core in the X-ray high voltage generator provided in an embodiment of the present invention (excluding the pressure equalizing ring);

[0052] Figure 3 It is a structural schematic diagram of the TANK core in the X-ray high voltage generator provided in an embodiment of the present invention (including a pressure equalizing ring);

[0053] Figure 4 A schematic diagram of the internal structure distribution of the TANK core in the X-ray high voltage generator provided in an embodiment of the present invention;

[0054] Figure 5 It is a structural schematic diagram of a spark suppression resistor assembly in an X-ray high voltage generator provided in an embodiment of the present invention;

[0055] Figure 6 A schematic diagram of the internal structure of an X-ray high voltage generator provided in an embodiment of the present invention;

[0056] Figure 7 for Figure 6Schematic diagram of the structure at the center circle A;

[0057] Figure 8 It is a schematic structural diagram of an X-ray tube assembly in an X-ray high voltage generator provided in an embodiment of the present invention.

[0058] Description of reference numerals:

[0059] 1-TANK core; 101-main insulation cylinder; 1011-main insulation cylinder high voltage creepage groove; 1012-main insulation cylinder low voltage creepage groove; 102-voltage multiplier assembly; 103-main transformer; 104-filament transformer assembly;

[0060] 105-spark suppression resistor assembly; 1051-insulating shell; 1052 adapter board; 10521-filament transformer common terminal connecting copper sheet; 10522-filament transformer filament connecting copper sheet; 10523-filament transformer common terminal lead pad; 10524-filament transformer filament lead pad; 1053-spark suppression resistor; 1054-high voltage output end insulated wire;

[0061] 106-intermediate supporting isolation main insulating plate; 107-fixing bracket; 108-pressure regulating member; 109-high-voltage equalizing ring; 110-second equalizing ring; 111-third equalizing ring; 112-insulating partition; 113-bottom mounting plate;

[0062] 2-X-ray tube assembly; 201-anode handle; 202-fan cover; 203-fan; 204-fixed radiator; 205-X-ray tube; 206-cathode support; 207-X-ray tube common end spring contact; 208-X-ray tube filament end spring contact; 209-X-ray tube fixed insulation cover; 210-X-ray tube large filament lead; 211-X-ray tube filament common end lead; 212-sealed end cover; 213-spring contact fixed PCB board;

[0063] 3-TANK cylinder;

[0064] 4-Bottom end cap assembly. DETAILED DESCRIPTION

[0065] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0066] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0067] Example

[0068] This embodiment provides an X-ray high voltage generator, such as Figure 1 As shown, it includes a TANK body 3, a TANK core 1, an X-ray tube assembly 2 and a bottom end cover assembly 4.

[0069] In this embodiment, the TANK core 1 is arranged inside the TANK cylinder 3, the X-ray tube assembly 2 is connected to the top of the TANK cylinder 3, and the X-ray tube assembly 2 is electrically connected to the TANK core 1; the bottom end cover assembly 4 is connected to the bottom end of the TANK cylinder 3; wherein, the TANK core 1 includes a main insulating cylinder 101 and an intermediate supporting and isolating main insulating plate 106, the intermediate supporting and isolating main insulating plate 106 is arranged inside the main insulating cylinder 101, and the intermediate supporting and isolating main insulating plate 106 is configured to divide the internal space of the main insulating cylinder 101 into two sub-spaces; the two sub-spaces are suitable for placing electronic components in the TANK core 1.

[0070] like Figure 4 As shown, by setting a main insulating tube 101 and an intermediate supporting and isolating main insulating plate 106, and the intermediate supporting and isolating main insulating plate 106 is arranged inside the main insulating tube 101 to divide the internal space of the main insulating tube 101 into two sub-spaces, when placing electronic components in the TANK core 1, the electronic components are placed in the two sub-spaces according to needs, so that the overall structure of the TANK core 1 is more compact, thereby reducing the overall volume of the X-ray high-voltage generator.

[0071] In this embodiment, the electronic components in the ANK core 1 further include a voltage doubling component 102, a main transformer 103, and a filament transformer component 104. Figure 4As shown, the voltage doubler assembly 102 is arranged in one subspace, and the main transformer 103 and the filament transformer assembly 104 are arranged in another subspace. The voltage doubler assembly 102, the main transformer 103 and the filament transformer assembly 104 are all conventional existing components in the X-ray high voltage generator, so their principles are not described in detail here, and they are directly used in this embodiment.

[0072] In this embodiment, if Figures 2 to 6 As shown, the TANK core 1 further includes a spark suppression resistor assembly 105 , which is disposed in the main insulating tube 101 and is electrically connected to the X-ray tube assembly 2 .

[0073] The spark suppression resistor assembly 105 includes an insulating shell 1051, a PCB adapter board 1052 and a plurality of spark suppression resistors 1053. The insulating shell 1051 is divided into an X-ray tube mounting cavity and a spark suppression resistor glue pouring groove by its internal partition board; the PCB adapter board 1052 is arranged in the X-ray tube mounting cavity, and the PCB adapter board 1052 is electrically connected to the X-ray tube assembly 2; the plurality of spark suppression resistors 1053 are installed in series in a zigzag shape in the spark suppression resistor glue pouring groove, and the high-voltage output end of the spark suppression resistor 1053 is electrically connected to the PCB adapter board 1052.

[0074] Specifically, Figure 5 As shown, the insulating shell 1051 is divided into two parts, the upper side is the X-ray tube installation cavity, the lower side is the spark suppression resistor glue filling groove, and an opening is left on the side of the insulating shell for the output lead of the filament transformer to be introduced.

[0075] Specifically, the PCB adapter board 1052 is installed in the X-ray tube installation cavity, and the PCB adapter board 1052 is provided with a filament transformer common terminal connection copper sheet 10521, a filament transformer filament connection copper sheet 10522, a filament transformer common terminal lead pad 10523, and a filament transformer filament lead pad 10524. The spark suppression resistor 1053 is installed in series in a zigzag shape in the groove, and is potted or not potted with epoxy resin, wherein the high-voltage input end of the spark suppression resistor 1053 is connected to the high-voltage output of the voltage multiplier component 102, and the high-voltage output end of the spark suppression resistor 1053 is connected to the common terminal pad of the filament transformer through the high-voltage output end insulated wire 1054.

[0076] By arranging the spark suppression resistors 1053 in a zigzag shape and potting or not potting the spark suppression resistors 1053 with potting glue, discharge between the spark suppression resistors 1053 can be prevented when a spark failure occurs in the X-ray tube 205.

[0077] In this embodiment, the TANK core 1 further includes a plurality of voltage-equalizing rings, and an insulating partition 112 is provided between two adjacent voltage-equalizing rings; wherein the top of the high-voltage voltage-equalizing ring is a closed structure.

[0078] like Figure 3 As shown, from top to bottom are the high-pressure equalizing ring 109 , the second equalizing ring 110 and the third equalizing ring 111 , and the high-pressure equalizing ring 109 is located at the high-pressure end of the TANK core 1 .

[0079] In this embodiment, the thickness of the high-voltage area of ​​the main insulating tube 101 is greater than that of the low-voltage area, and creepage-enhancing grooves are provided on the inner walls at both ends of the main insulating tube 101 .

[0080] like Figure 3 and Figure 4 As shown, a voltage-equalizing ring is added to the high-voltage end, and the voltage-equalizing ring potential selects a fixed potential from the voltage-doubling assembly 102 for equipotential connection. An insulating partition 112 is set between the voltage-equalizing rings to prevent discharge between the voltage-equalizing rings, wherein the high-voltage voltage-equalizing ring 109 is equipotential with the high-voltage output end of the voltage-doubling plate, and its top is designed with a closing end. The main insulating tube 101 is designed with a variable diameter, with a thick thickness in the high-voltage area and a thin thickness in the low-voltage area, and creepage grooves are set up on the upper and lower ends of the main insulating tube 101. The high-voltage end adopts a closed-end high-voltage voltage-equalizing ring 109 for electric field equalization, and creepage grooves are set up at the upper and lower ends of the main insulating tube 101 to increase the creepage distance, so that the electric field inside the TANK is more uniform. Specifically, the upper end of the main insulating tube 101 is the main insulating tube high-voltage creepage groove 1011, and the lower end of the main insulating tube 101 is the main insulating tube low-voltage creepage groove 1012.

[0081] In this embodiment, if Figure 6 As shown, the X-ray tube assembly 2 includes an X-ray tube 205 and an X-ray tube fixing insulating cover 209, the X-ray tube 205 is suitable for being electrically connected to the PCB adapter plate 1052, and the X-ray tube fixing insulating cover 209 is sleeved on the outside of the X-ray tube 205; wherein the X-ray tube fixing insulating cover 209 and the insulating shell 1051 are installed in staggered layers.

[0082] By staggering the X-ray tube fixing insulating cover 209 and the insulating shell 1051, discharge between the spring contact, the connecting copper sheet and the grading ring in the X-ray tube installation cavity can be prevented when a spark failure occurs in the X-ray tube 205.

[0083] In this embodiment, the X-ray tube assembly 2 further includes an electrical connection assembly electrically connected to the X-ray tube 205 , and the electrical connection assembly includes a plurality of spring contacts, and all the spring contacts are suitable for abutting against and electrically connecting to the PCB adapter plate 1052 .

[0084] like Figures 6 to 8As shown, a spring contact fixing PCB board 213 is installed at the end of an X-ray tube fixing insulating cover 209, on which two groups of contacts are arranged. One group of contacts is composed of two spring contacts, which constitute an X-ray tube common end spring contact 207 and an X-ray tube filament end spring contact 208, wherein an X-ray tube filament common end lead 211 is connected to the root of the X-ray tube common end spring contact 207, and an X-ray tube large filament lead 210 is connected to the root of the X-ray tube filament end spring contact 208.

[0085] During the installation process, the TANK core 1 is installed first, and the TANK core 1 is installed into the TANK cylinder 3, and then the X-ray tube assembly 2 is installed into the TANK cylinder 3. During the installation of the X-ray tube assembly 2, the spring contact 208 at the filament end of the X-ray tube is pressed against the filament connecting copper sheet 10522 of the filament transformer, and the spring contact 207 at the common end of the X-ray tube is pressed against the common end connecting copper sheet 10521 of the filament transformer, forming a passage as a whole.

[0086] In this embodiment, the X-ray tube assembly 2 also includes a fixed radiator 204 and a fan 203. The fixed radiator 204 is connected to the X-ray tube 205. The X-ray tube fixed insulating cover 209 is connected to the fixed radiator 204. A placement space for the X-ray tube 205 is formed between the fixed radiator 204 and the X-ray tube fixed insulating cover 209. The fan 203 is connected to the fixed radiator 204.

[0087] In this embodiment, the X-ray tube assembly 2 further includes a cathode support 206 , which is disposed between the X-ray tube fixing insulating cover 209 and the X-ray tube 205 .

[0088] like Figure 8 As shown, the X-ray tube 205 is mounted on the fixed radiator 204, and the mounting hole is sealed by a sealing end cap 212. The fixed radiator 204 is cooled by air through a fan 203 mounted on a fan cover 202. The X-ray tube fixed insulating cover 209 is mounted on the fixed radiator 204, and a cathode support 206 is arranged between the X-ray tube fixed insulating cover 209 and the X-ray tube 205 to assist in positioning the X-ray tube 205. The end of the fan cover 202 is fixedly connected to the anode handle 201.

[0089] By designing the X-ray tube 205, the fixed heat sink 204, the X-ray tube fixed insulating cover 209, the spring contact fixed PCB board 213, and the spring contact as a whole, an electrical connection is formed with the TANK core 1 by means of the spring contact, which is convenient for installation. Since the contact area of ​​the connecting copper sheet is large, and two or more spring contacts are used as a group of spring contacts, even if there is a large shape and position tolerance during the installation of the TANK core 1 and the TANK barrel 3, the X-ray tube assembly 2 can be effectively electrically connected with the TANK core 1.

[0090] In this embodiment, the TANK core 1 also includes a fixed bracket 107 and a pressure regulating member 108. One side of the fixed bracket 107 is connected to an end of the main insulating tube 101 away from the X-ray tube assembly 2, and the other side of the fixed bracket 107 is connected to the bottom mounting plate 113; the pressure regulating member 108 is arranged in the space between the fixed bracket 107 and the bottom mounting plate 113.

[0091] like Figure 2 and Figure 4 As shown, the main insulating cylinder 101 and the intermediate supporting isolation main insulating plate 106 are fixed on the fixing bracket 107, and the fixing bracket 107 is installed on the bottom mounting plate 113. A pressure regulating member 108 is arranged in the space between the fixing bracket 107 and the bottom mounting plate 113 to adjust the oil pressure inside the TANK cylinder 3. The pressure regulating member 108 adopts an air bag.

[0092] In this embodiment, the voltage doubler assembly 102, the main transformer 103, the filament transformer assembly 104, the spark suppression resistor assembly 105, and the main insulating tube 101 are installed on the intermediate supporting isolation main insulating plate 106 and the fixed bracket 107, and installed on the bottom mounting plate 113, and a pressure regulating member 108 is arranged in the low-voltage area of ​​the fixed bracket 107 and the bottom mounting plate 113, so that the overall structure is compact.

[0093] In this embodiment, if Figure 8 As shown, the bottom end cover assembly 4 is a structural member sleeved on the TANK cylinder 3.

[0094] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An X-ray high voltage generator, characterized in that: include: TANK cylinder (3); A TANK core (1) is arranged inside the TANK cylinder (3); An X-ray tube assembly (2) connected to the top of the TANK cylinder (3), and the X-ray tube assembly (2) is electrically connected to the TANK core (1); A bottom end cover assembly (4) connected to the bottom end of the TANK cylinder (3); The TANK core (1) comprises a main insulating cylinder (101) and an intermediate supporting and isolating main insulating plate (106), wherein the intermediate supporting and isolating main insulating plate (106) is arranged inside the main insulating cylinder (101), and the intermediate supporting and isolating main insulating plate (106) is configured to divide the internal space of the main insulating cylinder (101) into two subspaces; The two sub-spaces are suitable for placing electronic components in the TANK core (1).

2. The X-ray high voltage generator according to claim 1, characterized in that: The TANK core (1) further comprises a spark suppression resistor assembly (105), wherein the spark suppression resistor assembly (105) is arranged in the main insulating cylinder (101) and is electrically connected to the X-ray tube assembly (2); The spark suppression resistor assembly (105) comprises: An insulating shell (1051), wherein the insulating shell (1051) is divided into an X-ray tube installation cavity and a spark suppression resistor glue potting groove by an internal partition plate; A PCB adapter plate (1052) is arranged in the X-ray tube installation cavity, and the PCB adapter plate (1052) is electrically connected to the X-ray tube assembly (2); A plurality of spark suppression resistors (1053) are installed in series in a zigzag shape in the spark suppression resistor glue potting groove, and a high-voltage output end of the spark suppression resistor (1053) is electrically connected to the PCB adapter board (1052).

3. The X-ray high voltage generator according to claim 2, characterized in that: The TANK core (1) further comprises a plurality of voltage-equalizing rings, and an insulating partition (112) is provided between two adjacent voltage-equalizing rings; Among them, the top of the high-pressure equalizing ring is a closed structure.

4. The X-ray high voltage generator according to any one of claims 1 to 3, characterized in that: The thickness of the high-voltage region of the main insulating tube (101) is greater than that of the low-voltage region, and creepage-enhancing grooves are provided on the inner walls of both upper and lower ends of the main insulating tube (101).

5. The X-ray high voltage generator according to claim 2, characterized in that: The X-ray tube assembly (2) comprises: An X-ray tube (205) adapted to be electrically connected to the PCB adapter plate (1052); An X-ray tube fixing insulating cover (209) is sleeved on the outside of the X-ray tube (205); Wherein, the X-ray tube fixing insulating cover (209) and the insulating shell (1051) are installed in staggered layers.

6. The X-ray high voltage generator according to claim 5, characterized in that: The X-ray tube assembly (2) further comprises an electrical connection assembly electrically connected to the X-ray tube (205), wherein the electrical connection assembly comprises a plurality of spring contacts, and all of the spring contacts are suitable for abutting against and electrically connecting to the PCB adapter plate (1052).

7. The X-ray high voltage generator according to claim 5, characterized in that: The X-ray tube assembly (2) further comprises: A fixed radiator (204) is connected to the X-ray tube (205); the X-ray tube fixed insulating cover (209) is connected to the fixed radiator (204); a placement space for placing the X-ray tube (205) is formed between the fixed radiator (204) and the X-ray tube fixed insulating cover (209); The fan (203) is connected to the fixed heat sink (204).

8. The X-ray high voltage generator according to claim 5, characterized in that: The X-ray tube assembly (2) further comprises a cathode support (206), wherein the cathode support (206) is arranged between the X-ray tube fixing insulating cover (209) and the X-ray tube (205).

9. The X-ray high voltage generator according to claim 1, characterized in that: The TANK core (1) further comprises: A fixed bracket (107), one side of which is connected to an end of the main insulating tube (101) away from the X-ray tube assembly (2), and the other side of the fixed bracket (107) is connected to a bottom mounting plate (113); The pressure regulating member (108) is arranged in the space between the fixing bracket (107) and the bottom mounting plate (113).

10. The X-ray high voltage generator according to claim 3, characterized in that: The TANK core (1) further comprises: A voltage doubling component (102) is arranged inside one of the subspaces, the voltage doubling component (102) is connected to the voltage grading ring at the same potential, and the high-voltage voltage grading ring and the high-voltage output end of the voltage doubling plate in the voltage doubling component (102) are at the same potential; The main transformer (103) and the filament transformer assembly (104) are arranged inside another of the subspaces.

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