Ray source device and detection equipment

Abstract

The utility model discloses a radiation source device and detection equipment, the radiation source device comprises a high voltage generator and a light source generator, the light source generator comprises a body and a power supply seat arranged at the end part of the body; a butt joint structure opposite to the body is arranged on the high-voltage generator, a containing groove matched with the end of the body is formed in the side, facing the body, of the butt joint structure, and the body is positioned in the containing groove. The radiation source device is further provided with an insulating washer which is arranged between the butt joint structure and the body in a pressing mode, and the insulating washer is pressed and positioned to the groove bottom of the containing groove and arranged around the power supply base. According to the utility model, the butt joint structure is arranged on the high-voltage generator, and the accommodating groove formed in the butt joint structure wraps the end part of the light source generator, so that a better shielding effect is achieved, and the problem of high-voltage creepage can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ray detection, in particular to a ray source device and a detection device. Background Art

[0002] As a kind of ray source, the X-ray source has a very wide range of application fields, mainly including industrial non-destructive testing, nuclear waste, security inspection, food industry, electronic component detection, light industry, dental CT, medical and other industries. From the perspective of market demand, the development trend and prospect are relatively optimistic. However, the market competition is very fierce and tends to be white-hot. The market not only requires stable and reliable quality, but also higher performance requirements.

[0003] At present, conventional 160KV ray sources are generally used in the market. However, the output voltage of 160KV is relatively low and cannot penetrate thicker or denser metals. Although increasing the output voltage can improve the penetrability of the ray source, high-voltage creepage is likely to occur after the voltage is increased. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a ray source device to solve the deficiencies in the prior art. By setting a docking structure on the high-voltage generator, the accommodating groove formed on the docking structure wraps the end of the light source generator, playing a better shielding role, thereby effectively reducing the occurrence of high-voltage creepage problems.

[0005] The ray source device provided by the utility model includes a high-voltage generator and a light source generator. The light source generator includes a body and a power supply base arranged at the end of the body;

[0006] A docking structure opposite to the body is arranged on the high-voltage generator. An accommodating groove adapted to the end of the body is formed on one side of the docking structure facing the body. The body is positioned in the accommodating groove. The ray source device also has an insulating gasket pressed between the docking structure and the body. The insulating gasket is pressed and positioned at the bottom of the accommodating groove and arranged around the power supply base.

[0007] Further, the docking structure has a receiving part, a transition part and an extending part. The accommodating groove is arranged on the receiving part. The transition part is provided with the receiving part and extends in a direction away from the accommodating groove; the extending direction of the extending part intersects with the extending direction of the transition part.

[0008] Further, the high-voltage generator has a generator housing, and the docking structure is fixedly arranged on the generator housing.

[0009] The generator housing is integrally in a cuboid structure and has a length direction and a width direction. The transition part extends integrally along the width direction of the generator housing, and the extension part extends integrally along the length direction of the generator housing. The extension direction of the extension part is perpendicular to the extension direction of the transition part.

[0010] Further, a housing mounting hole is formed on one side of the generator housing facing the body.

[0011] The docking structure includes an annular mounting part provided on the receiving part, and the annular mounting part is located at the edge of the accommodating groove.

[0012] The annular mounting part is fixed outside the generator housing, and the annular mounting part is fixed at the edge of the housing mounting hole.

[0013] Further, the receiving part, the transition part and the extension part are integrally formed. The annular mounting part includes a flange ring integrally formed on the receiving part. A plurality of mounting holes are provided on the annular mounting part, and the plurality of mounting holes are arranged in an annular pattern. The annular mounting part is provided on the side of the receiving part away from the transition part.

[0014] Further, the ray source device further includes a mounting flange fixed on the generator housing, and the mounting flange presses and fixes the annular mounting part on the generator housing.

[0015] Further, the outer wall of the extension part is curved.

[0016] Further, the extension part is integrally in a corrugated shape.

[0017] Further, the material of the docking structure is lead yellow.

[0018] Further, the transition part has a transition part perforation communicating with the accommodating groove. The transition part perforation has an inlet provided at the bottom of the accommodating groove. The outer diameter dimension of the transition part gradually decreases as it is away from the accommodating groove. The outer diameter dimension of the extension part also gradually shortens as it is away from the transition part. An extension part perforation communicating with the transition part perforation is provided on the extension part.

[0019] Further, the body includes a ceramic tube having a reaction cavity and a metal cover body sleeved outside the ceramic tube. The part of the metal cover body extending out of the ceramic tube forms an annular extension part. A gasket positioning groove is formed between the annular extension part and the end of the ceramic tube. The insulating gasket is located in the gasket positioning groove after being pressed and fixed.

[0020] Further, an avoidance groove adapted to the annular extension portion is provided in the accommodation groove, and the avoidance groove is recessed from the bottom of the accommodation groove in a direction away from the opening of the accommodation groove.

[0021] Further, the ray outlet is integrally formed with the ceramic tube;

[0022] The power supply base is disposed on the ceramic tube and extends into the reaction chamber, and the power supply base is hermetically disposed with the ceramic tube;

[0023] A plurality of wiring terminals are provided on the power supply base;

[0024] There are three wiring terminals, and each wiring terminal is provided with a conductive tube, and each conductive tube is provided with a conductive spring.

[0025] Further, the ray source device further has a radiation shield sleeved outside the light source generator.

[0026] Another embodiment of the present invention also discloses a detection device, including a frame body and the ray source device as described above, and the ray source device is disposed on the frame body.

[0027] Compared with the prior art, by providing a docking structure on the high-voltage generator, the present invention enables the light source generator to directly abut against the docking structure when pressed against the high-voltage generator. The accommodation groove formed on the docking structure wraps the end of the light source generator, playing a better shielding role, thereby effectively reducing the problem of high-voltage creepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 1 is a first structural schematic diagram of a ray source device disclosed in an embodiment of the present invention;

[0029] Figure 2 FIG. 2 is a second structural schematic diagram of a ray source device disclosed in an embodiment of the present invention;

[0030] Figure 3 FIG. 3 is a front view of a ray source device disclosed in an embodiment of the present invention;

[0031] Figure 4 FIG. 4 is an installation structural schematic diagram of a main body and a docking structure in a ray source device disclosed in an embodiment of the present invention;

[0032] Figure 5 FIG. 5 is a third structural schematic diagram of a ray source device disclosed in an embodiment of the present invention;

[0033] Figure 6 FIG. 6 is a first structural schematic diagram of a base in a ray source device disclosed in an embodiment of the present invention;

[0034] Figure 7 It is a schematic structural diagram of a light source generator in a ray source device disclosed in an embodiment of the present utility model;

[0035] Figure 8 It is a schematic installation structure diagram of a high-voltage generator of a light source generator in a ray source device disclosed in an embodiment of the present utility model;

[0036] Figure 9 It is an exploded view of a ray source device disclosed in an embodiment of the present utility model;

[0037] Figure 10 It is a schematic structural diagram of a docking structure in a ray source device disclosed in an embodiment of the present utility model;

[0038] Figure 11 It is a three-dimensional view of another docking structure in a ray source device disclosed in an embodiment of the present utility model;

[0039] Figure 12 It is a top view of a docking structure in a ray source device disclosed in an embodiment of the present utility model;

[0040] Figure 13 is Figure 12 a cross-sectional view in the BB direction of

[0041] Figure 14 It is a first overall structural diagram of a ray source device disclosed in an embodiment of the present utility model after the control unit is installed and fixed;

[0042] Figure 15 It is a second overall structural diagram of a ray source device disclosed in an embodiment of the present utility model after the control unit is installed and fixed;

[0043] Explanation of reference numerals: 1 - base, 10 - clearance space, 11 - handle, 12 - abutting positioning groove, 13 - kidney-shaped hole, 14 - positive electrode positioning groove,

[0044] 2 - high-voltage generator, 200 - housing installation hole, 21 - positive high-voltage generator, 211 - positive plug connector, 212 - positive generator housing, 22 - negative high-voltage generator, 221 - negative plug connector, 222 - negative generator housing, 23 - docking structure, 230 - accommodation groove, 231 - insulating body, 2311 - receiving portion, 2312 - transition portion, 2313 - extending portion, 232 - annular installation portion, 233 - avoidance groove, 24 - mounting flange, 25 - positioning bolt,

[0045] 3 - light source generator, 31 - body, 311 - ceramic tube, 312 - ray exit port, 32 - power supply base, 321 - wiring terminal, 3211 - conductive tube, 3212 - conductive spring, 322 - terminal support platform, 33 - washer positioning groove, 34 - metal cover

[0046] 4 - Cooling system, 41 - Exchanger, 5 - Transformer component, 51 - Transformer housing, 6 - Control unit, 61 - Control unit housing, 611 - Mounting plate, 6111 - Lateral support part, 612 - Housing cover, 7 - Insulating washer, 8 - Radiation shield, 9 - Annular extension, 101 - Abutting positioning part, 1011 - Positioning support plate, 1012 - Abutting part. Specific embodiments

[0047] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0048] Embodiment of the present utility model: Disclosed is a ray source device, which is used to generate X - rays. This ray source device can be used in security inspection equipment to detect items or in non - destructive testing equipment to detect product defects, such as defect problems like cracks and air bubbles generated on products.

[0049] As Figures 1-9 shown, the ray source device of this embodiment includes a base 1, a pair of high - voltage generators 2 arranged on the base 1 and opposite to each other, and a light source generator 3 arranged between the pair of high - voltage generators 2;

[0050] The light source generator 3 includes a body 31 pressed between the pair of high - voltage generators 2 and a pair of power supply seats 32 arranged on opposite sides of the body 31; the body 31 is generally columnar and has two opposite ends in the axial direction, and the pair of power supply seats 32 are respectively arranged at the two ends, and the two high - voltage generators 2 are also correspondingly located at the two ends of the body 31.

[0051] The pair of high - voltage generators 2 are arranged along the width direction of the base 1 and form a gap space 10 between them. The ray source device also has a cooling system 4 and a transformer component 5. The cooling system 4 cools down the ray source device during operation, and the transformer component 5 is used to convert the input voltage into a voltage available for the high - voltage generator 2. In this embodiment, in order to make better use of the space, the cooling system 4 and the transformer component 5 are arranged in the gap space 10.

[0052] The pair of high - voltage generators 2 are respectively a positive - pole high - voltage generator 21 and a negative - pole high - voltage generator 22. Under the combined action of the positive - pole high - voltage generator 21 and the negative - pole high - voltage generator 22, the light source generator 3 is correspondingly located in a larger voltage field, so as to better accelerate the electrons in the light source generator 3, and thus the generated X - rays have stronger penetrability and can test thicker objects.

[0053] The above structure enables the ray source device to meet the output of high voltage and high current, so that the X-rays formed by the light source generator 3 have stronger penetration power.

[0054] The ray source device also has an insulating washer 7. The insulating washer 7 is arranged between the body 31 and the positive high-voltage generator 21. The insulating washer 7 is pressed tightly between the body 31 and the positive high-voltage generator 21. The insulating washer 7 is also arranged between the body 31 and the negative high-voltage generator 22. The insulating washer 7 is also clamped between the body 31 and the negative high-voltage generator 22. The insulating washer 7 is arranged around the power supply base 32.

[0055] In this embodiment, pressing and fixing the insulating washer 7 between the high-voltage generator 2 and the light source generator 3 can isolate the power supply base 32 surrounded by the insulating washer 7 from the outside, so that the power supply base 32 has better sealing performance, and can reduce the occurrence of high-voltage creepage problems when electrically connected to the high-voltage generator.

[0056] In this embodiment, the ray source device also has a base 1. The high-voltage generator 2 and the light source generator 3 are both arranged on the base 1. The high-voltage generator 2, the light source generator 3 and the base 1 are used as a module for convenient overall picking and placing, and also make the integration degree of the ray source device higher.

[0057] In this embodiment, the external power supply provides a voltage of 220V. After being converted by the transformer component 5, the 220V voltage is converted into a 160V voltage for the use of the positive high-voltage generator 21 and a 160V voltage for the use of the negative high-voltage generator 22, so as to form a voltage difference of 320V at both ends of the light source generator 3 to better realize the acceleration of electrons, so that the X-rays generated after hitting the tungsten target have stronger penetration, and the images generated after detection have higher resolution.

[0058] Compared with the control method using single-pole voltage in the prior art, although the method using bipolar high voltage improves the penetration of the generated X-rays, the addition of the positive high voltage easily causes the occurrence of high-voltage creepage problems, resulting in unstable operation of the equipment.

[0059] In order to avoid the above problems, the high-voltage generator 2 is provided with a docking structure 23 opposite to the body 31. The side of the docking structure 23 facing the body 31 forms a receiving groove 230 adapted to the end of the body 31. The body 31 is positioned in the receiving groove 230, and the insulating washer 7 is pressed and positioned at the bottom of the receiving groove 230 and arranged around the power supply base 32.

[0060] In this utility model, by providing a docking structure 23 on the high-voltage generator 2, when the light source generator 3 is pressed against the high-voltage generator 2, it can directly abut on the docking structure 23. The accommodation groove 230 formed on the docking structure 23 wraps the end of the light source generator 3, playing a better shielding role, thereby effectively reducing the occurrence of high-voltage creepage problems.

[0061] In a specific embodiment, as Figure 8 shown, the high-voltage generator 2 has a generator housing, and a housing mounting hole 200 is formed on one side of the generator housing facing the body 31.

[0062] A cavity is provided inside the generator housing, and the cavity can be exposed outward through the housing mounting hole 200. After the docking structure 23 is installed and fixed, at least part of the docking structure 23 is located inside the cavity.

[0063] As Figures 10-13 shown, the docking structure 23 includes an insulating body 231 disposed inside the generator housing and an annular mounting portion 232 disposed on the insulating body 231. The accommodation groove 230 is provided on the insulating body 231, and the annular mounting portion 232 is located at the edge of the accommodation groove 230.

[0064] The annular mounting portion 232 is fixed outside the generator housing, and the annular mounting portion 232 is fixed at the edge of the housing mounting hole 200. The insulating body 231 is disposed in the cavity inside the corresponding generator housing. The insulating body 231 is installed in the generator housing from the mounting hole 220.

[0065] By providing the annular mounting portion 232, it is convenient to install and fix the docking structure 23 on the generator housing.

[0066] The insulating body 231 includes a receiving portion 2311, a transition portion 2312, and an extending portion 2313. The accommodation groove 230 is provided on the receiving portion 2311. The transition portion 2312 extends in a direction away from the accommodation groove 230 and has a transition portion through-hole communicating with the accommodation groove 230. The transition portion through-hole has an inlet provided at the bottom of the accommodation groove 230.

[0067] The extending direction of the extension portion 2313 intersects with the extending direction of the transition portion 2312; in this embodiment, the overall extending direction of the extension portion 2313 is perpendicular to the overall extending direction of the transition portion 2312. In other embodiments, the extending direction of the extension portion 2313 may also intersect obliquely with the extending direction of the transition portion 2312. The extension portion 2313 and the transition portion 2312 extending along two different directions can enable the insulating body 231 to have a sufficient length of extension while not occupying too much space in one direction, thus being more conducive to reducing the size of the device.

[0068] Specifically, the overall shape of the generator housing is a cuboid structure and has a length direction and a width direction. The overall transition portion 2312 extends along the width direction of the generator housing, the overall extension portion 2313 extends along the length direction of the generator housing, and the extending direction of the extension portion 2313 is perpendicular to the extending direction of the transition portion 2312.

[0069] The longer the length of the insulating body 231, the more effectively the problem of high-voltage creepage can be avoided. In this embodiment, the insulating body 231 is arranged to extend in two directions, that is, the transition portion 2312 extending along the width direction and the extension portion 2313 extending along the length direction. Such a structural arrangement can prevent the insulating body 231 from extending in one direction, thereby occupying too much space in that direction and further increasing the volume of the entire device.

[0070] In this embodiment, the sum of the length of the insulating body 231 extending along the width direction and the length extending along the length direction is not less than 5 cm. That is, the sum of the length of the extension portion 2313 along the extending direction and the length of the transition portion 2312 along the extending direction is not less than 5 cm, thereby ensuring that the insulating body 231 has a sufficient length for extension.

[0071] As the distance from the accommodating groove 230 increases, the outer diameter dimension of the transition portion 2312 gradually decreases; the transition portion 2312 is generally conical. Such a structural arrangement can minimize the size of the transition portion 2312 while ensuring a stable connection with the insulating body 231, saving space and reducing the use of materials.

[0072] In this embodiment, the receiving portion 2311, the transition portion 2312, and the extension portion 2313 are integrally formed. The annular mounting portion 232 includes a flange ring integrally formed on the receiving portion 2311. A number of annularly arranged mounting holes are provided on the annular mounting portion 232. The annular mounting portion 232 is arranged on the side of the receiving portion 2311 away from the transition portion 2312, so that the insulating body 231 is exposed as little as possible.

[0073] As the outer diameter dimension of the extension part 2313 gradually shortens with the distance from the transition part 2312, an extension part perforation communicating with the transition part perforation is provided on the extension part 2313.

[0074] The outer wall of the extension part 2313 is curved; that is, the wall arranged in a curve encloses the extension part 2313. Arranging the extension part 2313 in a curve can increase the degree of tortuosity of the wall of the extension part 2313 in the extension direction, so as to increase the creepage distance when the high-voltage electricity climbs outward along the extension part 2313, and further reduce the risk of creepage.

[0075] In this embodiment, as Figure 11 shown, the extension part 2313 is integrally in a corrugated shape. The corrugated extension part 2313 has a longer creepage distance. In other embodiments, the transition part 2312 can also be arranged in a corrugated shape.

[0076] The ray source device further includes a mounting flange 24 fixed on the generator housing, and the mounting flange 24 presses and fixes the annular mounting part 232 on the generator housing.

[0077] The material of the docking structure 23 is lead yellow, and lead yellow has a good shielding effect and can reduce radiation well. At the same time, the docking structure made of lead yellow material has insulation, and the docking structure as an insulator can further effectively reduce the occurrence of high-voltage creepage problems.

[0078] In this embodiment, when the main body 31 is installed and fixed, the insulating washer 7 pressed between the main body 31 and the positive high-voltage generator 21 is positioned in the accommodation groove 230 of the docking structure 23. Such a structure setting can enable the docking structure 23 to form a certain wrapping and covering on the end of the main body 31, so as to better achieve the sealing and shielding effect, reduce the occurrence of high-voltage creepage problems, and at the same time can better position the insulating washer 7, avoid the offset of the insulating washer 7 during the pressing process, and make the equipment operate more stably.

[0079] The main body 31 includes a ceramic tube 311 having a reaction cavity, a tungsten target (not shown in the figure) arranged in the reaction cavity, and a ray outlet 312 arranged on the ceramic tube 311; the ray outlet 312 is integrally formed with the ceramic tube 311. The main body 31 made of ceramic material has better insulation effect than the glass material under high voltage. Of course, in other embodiments, the glass material can also be used as the main body 31.

[0080] The power supply base 32 is arranged on the ceramic tube 311 and extends into the reaction cavity. Since a vacuum environment needs to be maintained in the reaction cavity, the power supply base 32 needs to be hermetically arranged with the ceramic tube 311.

[0081] In this embodiment, as Figure 7 shown, a plurality of terminal blocks 321 are provided on the power socket 32; there are three terminal blocks, and the terminal block 321 includes a conductive tube 3211 and a conductive spring 3212 provided on the conductive tube 3211.

[0082] Through the cooperation of the conductive spring 3212 and the conductive tube 3211, the terminal block 321 can ensure a tight connection with the terminal block of the positive high-voltage generator 21 or the negative high-voltage generator 22, and it is also convenient to achieve a sealed setting with the ceramic tube 311.

[0083] Under the action of the positive high-voltage generator 21 and the negative high-voltage generator 22, a pressure difference is formed in the reaction chamber. The excited electrons are accelerated under the action of the pressure difference and hit the tungsten target in the reaction chamber to generate X-rays. The generated X-rays are emitted outwards through the ray outlet 312 and emitted to the item to be detected.

[0084] On one side of the light source generator 3 where the power socket 32 is provided, there is also a washer positioning groove 33. The insulating washer 7 is positioned in the washer positioning groove 33; the washer positioning groove 33 is arranged around the power socket 32. The setting of the washer positioning groove 33 can more conveniently realize the positioning of the insulating washer 7, reduce the problem of deviation during the extrusion of the insulating washer 7, and thus better realize the pressing and fixing of the insulating washer 7 between the light source generator 3 and the high-voltage generator.

[0085] The main body 31 includes a ceramic tube 311 having a reaction chamber and a metal cover 34 sleeved outside the ceramic tube 311. The part of the metal cover 34 extending outwards from the ceramic tube 311 forms an annular extension 9. A washer positioning groove 33 is formed between the annular extension 9 and the end of the ceramic tube; the insulating washer 7 is located in the washer positioning groove 33 after being pressed and fixed.

[0086] After the insulating washer 7 is installed and fixed, the annular extension 9 is arranged around the insulating washer 7 to prevent the insulating washer 7 from being exposed outwards after installation and fixing. The annular extension 9 surrounding the insulating washer 7 forms a cover on the side of the insulating washer 7 to reduce the risk of high-voltage creepage.

[0087] In this embodiment, pressing and fixing the insulating washer 7 between the high-voltage generator 2 and the light source generator 3 can isolate the power socket 32 surrounded by the insulating washer 7 from the outside, thereby enabling the power socket 32 to have better sealing performance. When electrically connected to the high-voltage generator, it can reduce the occurrence of high-voltage creepage problems. At the same time, after the insulating washer 7 is pressed and fixed, a ring-shaped extension 9 is provided outside the insulating washer 7, which avoids the outward exposure of the insulating washer 7 and further reduces the risk of high-voltage creepage problems.

[0088] The insulating washer 7 is pressed between the docking structure 23 and the body 31; an avoidance groove 233 adapted to the ring-shaped extension 9 is provided on the docking structure 23; after the insulating washer 7 is pressed and fixed, the ring-shaped extension 9 is located in the avoidance groove 233.

[0089] The provision of the avoidance groove 233 can prevent the ring-shaped extension 9 covering the insulating washer 7 from affecting the pressing effect of the insulating washer 7 between the body 31 and the docking structure 23, enabling the insulating washer 7 to be more tightly pressed between the two. It can be understood that, in order to better achieve tight crimping, the insulating washer 7 is made of a deformable material, and the insulating washer 7 has a certain degree of deformation compression during the pressing process.

[0090] In a specific embodiment, the ring-shaped extension 9 is made of a metal material, such as stainless steel. Since the ring-shaped extension 9 is a relatively hard material, if the ring-shaped extension 9 is subjected to force extrusion during the pressing process of the body 31, it is not only prone to deformation or cracking but also affects the pressing effect of the insulating washer 7. The avoidance groove 233 provided on the docking structure 23 can effectively avoid the occurrence of the above problems.

[0091] After the insulating washer 7 is positioned, the insulating washer 7 does not protrude from the washer positioning groove 33 in the axial direction of the body 31; in this embodiment, the insulating washer 7 is approximately flush with the end of the ring-shaped extension 9 in the axial direction of the body 31. If the insulating washer 7 extends out of the washer positioning groove 33, it is prone to extrusion deformation outside the washer positioning groove 33 during the extrusion process, causing part of the insulating washer 7 to be pressed between the ring-shaped extension and the docking structure 23, which not only damages the insulating washer 7 but also affects the pressing effect.

[0092] In this embodiment, the insulating washer 7 is integrally annular and has an inner ring wall and an outer ring wall. The larger the radius dimension of the washer positioning groove 33, the thicker the distance between the outer ring wall and the inner ring wall of the insulating washer 7, and the more it can increase the creepage distance, thereby better avoiding high-voltage leakage. In this embodiment, the ring-shaped extension 9 surrounding the washer positioning groove is provided outside the ceramic tube. On the premise that the ceramic tube has a certain outer diameter dimension, the radius dimension of the washer positioning groove 33 can be maximized.

[0093] The power socket 32 includes a terminal support platform 322 and a wiring terminal 321 disposed on the terminal support platform; an insulating washer 7 is sleeved outside the terminal support platform 322; the insulating washer 7 is positioned between the terminal support platform 322 and the annular extension 9;

[0094] The insulating washer 7 is integrally annular and has an inner ring wall and an outer ring wall. The outer ring wall is attached to the inner side of the annular extension 9, and the inner ring wall is attached to the outer wall of the terminal support platform 322.

[0095] It should be noted that a relatively large pressing force is required during the process of pressing the insulating washer 7. The relatively large pressing force is likely to cause the displacement of the position of the insulating washer 7. If some insulating washers 7 deviate during the pressing process, it will cause the scrapping of the product. In this embodiment, the insulating washer 7 is sleeved outside the terminal support platform 322, which actually makes the terminal support platform 322 also play a role in positioning the insulating washer. In this way, the annular insulating washer 7 is simultaneously positioned and supported by the terminal support platform 322 and the annular extension 9, and can be more stable during the pressing process without displacement.

[0096] Using a ceramic tube enables the light source generator to have better stability in a high-voltage environment, and setting a metal cover 34 outside the ceramic tube 311 can effectively protect the ceramic tube 311.

[0097] In this embodiment of the accommodating groove 230, the ray source device further has a base 1, a high-voltage generator 2, and a light source generator 3, all of which are disposed on the base 1. The high-voltage generator 2, the light source generator 3, and the base 1 are taken as a module as a whole, which is convenient for taking and placing, and at the same time makes the integration degree of the ray source device higher.

[0098] The high-voltage generator 2 is provided with a pair, namely a positive high-voltage generator 21 and a negative high-voltage generator 22, and the light source generator 3 is pressed between the positive high-voltage generator 21 and the negative high-voltage generator 22. The pair of high-voltage generators 2 are arranged along the width direction of the base 1 and form a gap space 10 therebetween. The ray source device further has a cooling system 4 or a transformer component 5 disposed in the gap space 10.

[0099] For more integrated setting, a cooling system 4 and a transformer component 5 can be simultaneously disposed in the gap space 10 between the pair of high-voltage generators 2, or only one of the above two can be set. Of course, other devices such as a control unit 6 can also be disposed between the two.

[0100] In this embodiment, the positive high-voltage generator 21 and the negative high-voltage generator 22 are integrally arranged on the base 1, and the cooling system 4 and the transformer components 5 are arranged in the gap space 10 formed between the two, which can make better use of the space between the two high-voltage generators 2, so that the ray source device has a smaller volume, a higher integration degree, and makes the ray source device more compact.

[0101] On one side of the positive high-voltage generator 21 facing the negative high-voltage generator 22, there is a positive plug 211, and on one side of the negative high-voltage generator 22 facing the positive high-voltage generator 21, there is a negative plug 221.

[0102] Setting the positive plug 211 on the side of the positive high-voltage generator 21 facing the negative high-voltage generator 22 actually makes the positive plug 211 also located in the gap space 10. Such a structural setting can make better use of the gap space 10. Similarly, setting the negative plug 221 on the side of the negative high-voltage generator 22 facing the positive high-voltage generator 21 can also make better use of the gap space 10.

[0103] It should be noted that in other embodiments, the positive plug 211 and the negative plug 221 can also be set at other positions according to actual needs.

[0104] In this embodiment, the transformer component 5 includes a transformer box body 51 fixed on at least one of the positive high-voltage generator and the negative high-voltage generator, and a positive cable and a negative cable (not shown in the figure) arranged in the transformer box body 51. It can be understood that a transformer for voltage transformation control is arranged in the transformer box body 51, and the positive cable and the negative cable are respectively electrically connected to the transformer.

[0105] In this embodiment, in order to better achieve control, as Figures 14-15 shown, the ray source device also has a control unit 6. After the transformer component 5 transforms the voltage, it is connected to the positive high-voltage generator 21 and the negative high-voltage generator 22 through the control unit 6. The positive cable and the negative cable are respectively electrically connected to the control unit 6, and the control unit 6 is respectively connected to the positive plug 211 and the negative plug 221 through cables.

[0106] Both the positive high-voltage generator 21 and the negative high-voltage generator 22 have a generator housing. The transformer box body 51 is fixed between the two generator housings, and the upper surface of the transformer box body 51 is in the same plane as the upper surface of the generator housing.

[0107] It can be understood that in other embodiments, the transformer box body 51 can also be fixed on the upper surfaces of the two transformer box bodies at the same time, and the transformer box body 51 straddles the gap space 10.

[0108] The positive high-voltage generator 21 includes a positive generator housing 212, the negative high-voltage generator 22 has a negative generator housing 222, the transformer box 51 is fixed between the positive generator housing 212 and the negative generator housing 222, and the upper surface of the transformer box 51 is flush with the upper surfaces of both the positive generator housing 212 and the negative generator housing 222 at the same time.

[0109] The cooling system 4 has an exchanger 41 disposed in the gap space 10. Arranging the exchanger 41 in the gap space 10 can effectively reduce the occupation of the space of the radiation source device, making the structure of the entire radiation source device more compact.

[0110] As Figures 14-15 shown, the radiation source device further has a control unit 6, the control unit 6 is electrically connected to the transformer component 5, the control unit 6 has a control unit housing 61, the control unit housing 61 is respectively connected and fixed to the pair of high-voltage generators 2, and the control unit housing 61 is fixed on the upper surfaces of the pair of high-voltage generators 2.

[0111] The control unit housing 61 is respectively connected and fixed to the negative generator housing 222 and the positive generator housing 212. The above setting of the control unit housing 61 also serves to connect and fix the two high-voltage generators, enabling the negative generator housing 222 and the positive generator housing 212 to be fixed more stably on the base 1, so that the light source generator 3 is more stably pressed and fixed between the positive high-voltage generator 21 and the negative high-voltage generator 22.

[0112] The control unit housing 61 is fixedly arranged at a position opposite to the position of the body 31; the control unit housing 61 is fixed directly above the body 31; the body 31 is pressed between the positive high-voltage generator 21 and the negative high-voltage generator 22. Therefore, a greater pressing effect is required for the position of the body 31. Fixing the control unit housing 61 at a position opposite to the position of the body 31 can better achieve the above effect.

[0113] In this embodiment, as Figure 14 and 15 shown, the control unit housing 61 includes a mounting plate 611 and a housing cover 612 disposed on the mounting plate 611. A housing space is formed between the mounting plate 611 and the housing cover 612, and the electronic control devices of the control unit are arranged in the housing space.

[0114] The mounting plate 611 is simultaneously connected and fixed to the positive high-voltage generator 21 and the negative high-voltage generator 22. The mounting plate 611 is integrally plate-shaped and has a certain thickness. Such a structural setting enables the mounting plate 611 to better play the role of pressing the positive high-voltage generator 21 and the negative high-voltage generator 22. The thickness of the housing 612 is relatively thinner than that of the mounting plate 611. The housing 612 covers the mounting plate 611 to form a covering and protection for the electronic control devices of the control unit.

[0115] In this embodiment, as Figure 7 shown, a plurality of wiring terminals 321 are provided on the power socket 32; there are three of the wiring terminals, and the wiring terminal 321 includes a conductive tube 3211 and a conductive spring 3212 provided on the conductive tube 3211. In this embodiment, both the conductive tube 3211 and the conductive spring 3212 are provided on the terminal support platform 322.

[0116] Through the cooperation of the conductive spring 3212 and the conductive tube 3211, the wiring terminal 321 can ensure a tight connection with the wiring terminals of the positive high-voltage generator 21 or the negative high-voltage generator 22, and it is also convenient to achieve a sealed setting with the ceramic tube 311.

[0117] Under the action of the positive high-voltage generator 21 and the negative high-voltage generator 22, a voltage difference is formed in the reaction chamber. The excited electrons are accelerated under the action of the voltage difference and strike the tungsten target in the reaction chamber to generate X-rays. The generated X-rays are emitted outward through the ray outlet 312 and are emitted to the item to be detected.

[0118] The ray source device further has a radiation shield 8 sleeved outside the light source generator. The material of the radiation shield 8 is lead. Using lead material can better achieve the shielding of X-rays. It can be understood that a radiation shield avoidance hole opposite to the position of the ray outlet 312 is provided on the radiation shield 8, and the radiation shield 8 is sleeved outside the body.

[0119] Due to the increase of the positive high-voltage generator 21, the risk of high-voltage creepage of the ray source device is increased, which puts higher requirements on the assembly of the ray source device. In order to more tightly press the light source generator 3 against the positive high-voltage generator 21 and the negative high-voltage generator 22, the following design is carried out:

[0120] The positive high-voltage generator 21 is fixed on the base 1. In this embodiment, the positive high-voltage generator 21 is directly installed and fixed on the base 1 through bolts.

[0121] The base 1 further has an abutting positioning groove 12 and an abutting positioning member 101 that cooperates with the abutting positioning groove 12. The abutting positioning member 101 is used to abut against the negative high-voltage generator 22 to limit the movement of the negative high-voltage generator 22 in a direction away from the positive high-voltage generator 21.

[0122] In this embodiment, when fixing the two high-voltage generators, one of them is directly fixed first, and then the other is finally installed and fixed in an abutting manner. The setting of such a structure enables the position of the later-installed and fixed high-voltage generator to have greater flexibility, so that it can be adjusted according to the actual situation, making the light source generator 3 more tightly pressed between the two high-voltage generators.

[0123] As Figures 5-6 shown, a waist-shaped hole 13 is provided at a position on the base 1 opposite to the position of the negative high-voltage generator 22. A positioning bolt 25 is provided on the negative high-voltage generator 22. The positioning bolt 25 can move in the waist-shaped hole 13 in a direction close to or away from the positive high-voltage generator 21. After the position of the negative high-voltage generator 22 is adjusted in place, the negative high-voltage generator 22 is fixed to the base 1 through the positioning bolt 25.

[0124] The positioning bolt 25 slides along the waist-shaped hole 13 during the positioning process of the negative high-voltage generator 22, thereby imposing a certain restriction on the adjustment direction of the position of the negative high-voltage generator 22. After the adjustment is in place, it is locked and fixed to the base 1 through the positioning bolt 25. The setting of the above structure enables the negative high-voltage generator 22 to be better installed and fixed.

[0125] The main body 31 is integrally cylindrical and extends along the width direction of the base 1. The main body 31 and the abutting positioning groove 12 are arranged on opposite sides of the negative high-voltage generator 22, and the abutting positioning groove 12 is entirely located in the extending direction of the main body 31. The abutting force required at the position where the negative high-voltage generator 22 and the light source generator 3 are opposite is the largest. Therefore, arranging the abutting positioning groove 12 opposite to the position of the light source generator 3 can better achieve the tight engagement between the light source generator 3 and the high-voltage generator.

[0126] The abutting positioning groove 12 is integrally strip-shaped and extends along the length direction of the base 1. One end of the abutting positioning groove 12 extends to the edge of the base 1 and opens outward from the side wall of the base 1 to form a lateral opening of the positioning groove;

[0127] In this embodiment, as Figure 14 and 15As shown, the abutment and positioning member 101 includes a positioning support plate 1011 and an abutment member 1012. The positioning support plate 1011 is positioned in the abutment and positioning groove 12. The abutment member 1012 is mounted and fixed on the positioning support plate 1011 and abuts against the negative high voltage generator 22. The positioning support plate 1011 is positioned and supported on the base 1, and is used to support the abutment member 1012 so that the abutment member 1012 can be tightly pressed against the negative high voltage generator 22.

[0128] After the positioning support plate 1011 is positioned and supported on the base 1 , a gap is provided between the positioning support plate 1011 and the negative electrode high voltage generator 22 .

[0129] Specifically, in order to better achieve the stability of the positioning support plate 1011, the ray source device also has a mounting plate 611 arranged on the negative high voltage generator 22 and the positive high voltage generator 21, and the mounting plate 611 is connected to the positive high voltage generator 21 and the negative high voltage generator 22; the mounting plate 611 can play a role in strengthening the fixation of the positive high voltage generator 21 and the negative high voltage generator 22. At the same time, the mounting plate 611 can also serve as a base of the control unit 6 to fix the electronic control components in the control unit 6.

[0130] The mounting plate 611 is arranged on the side of the negative high voltage generator 22 away from the base 1, and part of the mounting plate 611 extends out of the negative high voltage generator 22 in the lateral direction to form a lateral support portion 6111, and the end of the positioning support plate 1011 away from the base 1 is positioned on the lateral support portion 6111; the base 1 is installed and fixed at the bottom of the negative high voltage generator 22, and the mounting plate 611 is correspondingly installed and fixed at the top of the negative high voltage generator 22.

[0131] A mounting plate groove is provided on the side of the lateral support portion 6111 facing the base 1, and the mounting plate groove is opposite to the abutment positioning groove 12 on the base 1. The upper and lower sides of the positioning support plate 1011 are respectively positioned in the mounting plate groove and the abutment positioning groove 12; the two ends of the positioning support plate 1011 are respectively fixed on the mounting plate 611 and the base 1, thereby realizing the stable installation of the positioning support plate 1011.

[0132] It can be understood that in order to facilitate the installation and fixation of the positioning support plate 1011, one side of the mounting plate groove is also exposed from the side of the mounting plate 611. After the mounting plate 611 is installed and fixed, the positioning support plate 1011 can be directly inserted from the lateral direction, and the positioning support plate 1011 is slidably installed along the mounting plate groove and the abutment positioning groove 12 at the same time.

[0133] The positioning support plate 1011 is provided with a support plate through-hole, the abutment member 1012 includes an abutment flange and an extended abutment portion provided on the abutment flange, the abutment flange is fixed on the positioning support plate 1011, and the extended abutment portion penetrates the support plate through-hole and abuts against the negative high voltage generator 22;

[0134] The abutment flange is fixed on the side of the positioning support plate 1011 away from the negative high voltage generator 22 . The abutment flange is configured to limit the penetration of the support plate. The abutment flange is fixed on the positioning support plate 1011 to provide support for the abutment of the abutment portion against the negative high voltage generator 22 .

[0135] In this embodiment, the radiation source device further comprises an elastic member, which is compressed between the negative high voltage generator 22 and the abutment member; the abutment flange is fixed on the positioning support plate 1011 by bolts.

[0136] The elastic member may be a compression spring. Arranging the elastic member between the negative high voltage generator 22 and the abutment member can make the abutment force exerted by the abutment member on the negative high voltage generator 22 more flexible, thus avoiding the problem of excessive extrusion.

[0137] In other embodiments, the abutment and fixation of the negative high voltage generator can also be achieved by other means. For example, when the abutment positioning member moves from the lateral opening of the positioning groove toward the other end of the abutment positioning groove 12, the abutment force between the abutment positioning member and the negative high voltage generator 2 gradually increases. The above-mentioned structural setting of the abutment positioning member enables the abutment positioning member to achieve stepless adjustment, which can meet different working conditions. The abutment positioning member forms an abutment surface toward one side of the negative high voltage generator 22, and the distance between the abutment surface and the negative high voltage generator 22 gradually decreases from the first end of the abutment surface to the second end; the abutment surface is an inclined surface as a whole.

[0138] In this embodiment, in order to more conveniently realize the positioning of the positive high voltage generator 21, a positive positioning groove 14 is provided on the base 1 at a position opposite to the positive high voltage generator 21, and a positioning protrusion which is plugged into and matched with the positive positioning groove 14 is provided on the positive high voltage generator 21.

[0139] The positioning of the positive high voltage generator 21 is facilitated by the cooperation between the positioning protrusion and the positive positioning groove 14. After the positioning is completed, the positive high voltage generator 21 is installed and fixed by bolts, which makes it more convenient to install and fix the positive high voltage generator 21.

[0140] Furthermore, in order to achieve a better positioning effect, the positive electrode positioning groove 14 is entirely located in the extension direction of the body 31 .

[0141] The ray source device disclosed in this application is regarded as a whole module. To facilitate the transportation, picking up, placing, disassembly of the ray source device, a handle 11 is provided on the base 1.

[0142] The present utility model also discloses a detection device, which includes a frame body and the ray source device as described above. The ray source device is arranged on the frame body. The detection device can be a security inspection device, a human body detection device or an industrial non-destructive testing device.

[0143] The structure, features and function effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present utility model. However, the present utility model is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified to equivalent changes, still within the spirit covered by the description and drawings, should be within the protection scope of the present utility model.

Claims

1. A ray source device, characterized in that: It includes a high-voltage generator and a light source generator. The light source generator includes a body and a power socket arranged at the end of the body. The high-voltage generator is provided with a docking structure arranged opposite to the body. On the side of the docking structure facing the body, a receiving groove adapted to the end of the body is formed. The body is positioned in the receiving groove. The ray source device also has an insulating washer tightly arranged between the docking structure and the body. The insulating washer is tightly pressed and positioned at the bottom of the receiving groove and arranged around the power socket.

2. The ray source device according to claim 1, characterized in that: The docking structure has a receiving part, a transition part and an extension part. The receiving groove is arranged in the receiving part. The transition part is provided with the receiving part and extends in a direction away from the receiving groove. The extending direction of the extension part intersects with the extending direction of the transition part.

3. The ray source device according to claim 2, wherein: The high-voltage generator has a generator housing, and the docking structure is fixedly arranged on the generator housing. The generator housing is integrally in a cuboid structure and has a length direction and a width direction. The transition part extends integrally along the width direction of the generator housing, and the extension part extends integrally along the length direction of the generator housing. The extending direction of the extension part is perpendicular to the extending direction of the transition part.

4. The ray source device according to claim 3, wherein: On the side of the generator housing facing the body, a housing mounting hole is formed. The docking structure includes an annular mounting part arranged in the receiving part. The annular mounting part is located at the edge of the receiving groove. The annular mounting part is fixed outside the generator housing, and the annular mounting part is fixed at the edge of the housing mounting hole.

5. The ray source device according to claim 4, characterized in that: The receiving part, the transition part and the extension part are integrally formed. The annular mounting part includes a flange ring integrally formed on the receiving part. A plurality of mounting holes are arranged on the annular mounting part, and the plurality of mounting holes are arranged in a circular pattern. The annular mounting part is arranged on the side of the receiving part away from the transition part.

6. The ray source device according to claim 4, characterized in that: The ray source device also includes a mounting flange fixed on the generator housing. The mounting flange presses and fixes the annular mounting part on the generator housing.

7. The ray source device according to claim 2, characterized in that: The outer wall of the extension part is curved.

8. The radiation source device according to claim 7, wherein: The extension part is integrally in a corrugated shape.

9. The ray source device according to claim 2, wherein: The material of the docking structure is lead yellow.

10. The ray source device according to claim 2, characterized in that: The transition part has a transition part perforation communicating with the receiving groove. The transition part perforation has an inlet arranged at the bottom of the receiving groove. The outer diameter dimension of the transition part gradually decreases as it is away from the receiving groove. The outer diameter dimension of the extension part also gradually shortens as it is away from the transition part. An extension part perforation communicating with the transition part perforation is arranged on the extension part.

11. The ray source device according to claim 1, wherein: The body includes a ceramic tube having a reaction cavity and a metal cover body sleeved outside the ceramic tube. The part of the metal cover body extending out of the ceramic tube forms an annular extension part. A washer positioning groove is formed between the annular extension part and the end of the ceramic tube. The insulating washer is located in the washer positioning groove after being tightly pressed and fixed.

12. The ray source device according to claim 11, characterized in that: An avoidance groove adapted to the annular extension part is arranged in the receiving groove. The avoidance groove is recessed from the bottom of the receiving groove in a direction away from the opening of the receiving groove.

13. The ray source device according to claim 11, characterized in that: The ray exit is integrally formed with the ceramic tube. The power socket is arranged on the ceramic tube and extends into the reaction chamber, and the power socket is hermetically arranged with the ceramic tube; A plurality of wiring terminals are provided on the power socket; There are three wiring terminals, each wiring terminal is provided with a conductive tube, and each conductive tube is provided with a conductive spring.

14. The ray source device according to claim 1, characterized in that: The ray source device further has a radiation shield sleeved outside the light source generator.

15. A detection device, characterized in that: It includes a frame body and the ray source device according to any one of claims 1 to 14, and the ray source device is arranged on the frame body.

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