X-ray source and detection equipment

Abstract

The embodiment of the invention relates to the technical field of X-ray detection, and particularly discloses an X-ray source and detection equipment, the X-ray source comprises a shell, the shell is provided with a containing cavity, a liquid outlet and a liquid inlet, the liquid outlet and the liquid inlet are communicated with the containing cavity, and insulating oil is arranged in the containing cavity; the X-ray assembly is arranged in the containing cavity, the X-ray assembly is soaked in the insulating oil, and the X-ray assembly is used for generating X-rays; the high-voltage generation assembly is arranged in the containing cavity, the high-voltage generation assembly is soaked in the insulating oil, and the high-voltage generation assembly is electrically connected with the X-ray assembly; the cooling assembly is arranged on the outer wall of the shell, and the cooling assembly communicates with the liquid outlet and the liquid inlet; the oil pump is arranged on the shell, part of the oil pump is located in the containing cavity, and an oil outlet of the oil pump communicates with the containing cavity and the liquid outlet; and the filtering assembly is arranged on the oil pump, the filtering assembly communicates with the containing cavity and the oil inlet of the oil pump, and the filtering assembly can filter the insulating oil entering the oil pump. In this way, discharge sparking caused by the fact that impurities flow through the high-voltage area can be reduced.

Description

Technical Field

[0001] This application relates to the field of X-ray detection technology, and in particular to an X-ray source and detection equipment. Background Technology

[0002] An X-ray source is a device that generates X-rays. It utilizes the penetrating power of X-rays; as they pass through objects of different densities and thicknesses, they are absorbed to varying degrees. This absorption, combined with imaging processing, produces different images. Therefore, X-rays are widely used in medical, industrial, and security inspections for examination and flaw detection. In related technologies, X-ray sources typically place high-voltage components within a sealed container filled with insulating oil. The heat generated by the high-voltage components is transferred to the insulating oil, which then dissipates heat through the outer casing or an external circulating heat exchanger.

[0003] The inventors of this application have discovered that: since a large number of high-voltage devices need to be placed in a sealed container, impurities are easily generated during the assembly process of the high-voltage devices. Driven by the oil flow, the impurities move in the container. When the impurities flow through the high-voltage area, they are prone to discharge and sparking, which causes a decrease in the insulation strength of the oil and, in severe cases, damage to the high-voltage devices. Summary of the Invention

[0004] In view of the above problems, this application provides an X-ray source and detection device that overcomes or at least partially solves the above problems.

[0005] According to one aspect of this application, an X-ray source is provided, comprising a housing, a receiving cavity, and an outlet and an inlet communicating with the receiving cavity, wherein insulating oil is disposed within the receiving cavity; an X-ray assembly disposed within the receiving cavity, the X-ray assembly being immersed in the insulating oil, the X-ray assembly being used to generate X-rays; a high-voltage generating assembly disposed within the receiving cavity, the high-voltage generating assembly being immersed in the insulating oil, the high-voltage generating assembly being electrically connected to the X-ray assembly; a cooling assembly disposed on the outer wall of the housing, the cooling assembly communicating with the outlet and the inlet; an oil pump disposed within the housing, a portion of the oil pump being located within the receiving cavity, the oil outlet of the oil pump communicating with the receiving cavity and the outlet; and a filter assembly disposed on the oil pump, the filter assembly communicating with the receiving cavity and the oil inlet of the oil pump, the filter assembly being capable of filtering the insulating oil entering the oil pump; wherein the insulating oil can flow sequentially through the filter assembly, the oil pump, the outlet, and the cooling assembly until it flows into the receiving cavity from the inlet.

[0006] In one alternative embodiment, the filter assembly includes a mounting frame and a filter screen mounted on the inner wall of the mounting frame, the filter screen forming a filter cavity, the mounting frame covering the oil inlet of the oil pump, and the filter cavity communicating with the oil inlet.

[0007] In one alternative embodiment, the filter assembly further includes a filter housing, the filter housing having a deposition chamber and an oil inlet channel communicating with the deposition chamber, the oil inlet channel communicating with the receiving chamber, the filter housing covering the oil inlet, the mounting frame located inside the deposition chamber, the oil inlet channel being disposed opposite to the mounting frame, and insulating oil located in the receiving chamber being able to enter the deposition chamber from the oil inlet channel.

[0008] In one alternative embodiment, the filter housing includes a first inner wall, which is disposed opposite to the oil inlet of the oil pump. The first inner wall extends toward the oil inlet with a first protruding ring, which surrounds the oil inlet channel. There are multiple first protruding rings, which are arranged radially spaced apart from each other along the oil inlet channel, and a first sedimentation groove is formed between adjacent first protruding rings.

[0009] In one alternative embodiment, the filter housing further includes a second arc-shaped wall located within the deposition chamber. The second arc-shaped wall has a plurality of protrusions extending from it, which are spaced apart from each other and surround the mounting frame. A second deposition groove is formed between adjacent protrusions.

[0010] In one alternative embodiment, the oil inlet channel includes a first oil inlet and a second oil outlet, the first oil inlet and the second oil outlet being disposed opposite to each other, the second oil outlet being located within the deposition chamber, and the diameter of the first oil inlet being larger than the diameter of the second oil outlet.

[0011] In one alternative embodiment, the sidewall of the housing is provided with a first X-ray opening communicating with the receiving cavity; the X-ray assembly includes an X-ray tube and a X-ray tube cover, the X-ray tube cover is fixed relative to the housing, the X-ray tube cover is in communication with the receiving cavity, the X-ray tube is located inside the X-ray tube cover, the outer sidewall of the X-ray tube cover is provided with a second X-ray opening, the second X-ray opening is disposed opposite to the first X-ray opening, and the X-rays generated by the X-ray tube can be directed from the second X-ray opening to the first X-ray opening.

[0012] In one alternative embodiment, the X-ray source further includes a first connecting pipe and a second connecting pipe, both located within the receiving cavity. One end of the first connecting pipe is connected to the oil outlet of the oil pump, and the other end is connected to the liquid outlet. One end of the second connecting pipe is connected to the liquid inlet, and the other end communicates with the receiving cavity. A first filter element is provided at the other end of the second connecting pipe, which can filter the insulating oil flowing into the receiving cavity from the second connecting pipe.

[0013] In one alternative embodiment, a tee is provided on the second connecting pipe, and a branch of the tee is connected to the outer cover of the ray tube. The tee and the outer cover of the ray tube are interconnected. A second filter element is provided on the branch, and the second filter element is located inside the outer cover of the ray tube. The second filter element can filter the insulating oil flowing into the outer cover of the ray tube from the second connecting pipe.

[0014] In one alternative embodiment, the X-ray assembly further includes a heat sink connected to the X-ray tube and located inside the outer casing of the X-ray tube.

[0015] According to another aspect of this application, a detection device is provided, which includes an X-ray source as described above.

[0016] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment includes a housing, an X-ray assembly, a high-voltage generating assembly, a cooling assembly, an oil pump, and a filter assembly. The housing has a receiving cavity and an outlet and inlet connecting to the receiving cavity. Insulating oil is placed inside the receiving cavity. The X-ray assembly is located inside the receiving cavity and is immersed in the insulating oil. The X-ray assembly generates X-rays. The high-voltage generating assembly is located inside the receiving cavity and is immersed in the insulating oil. The high-voltage generating assembly is electrically connected to the X-ray assembly. The cooling assembly is located on the outer wall of the housing and connects to the outlet and inlet. The oil pump is located inside the housing, with a portion of the pump located within the receiving cavity. The oil outlet of the oil pump connects to the receiving cavity and the outlet. The filter assembly is located on the oil pump and connects to the receiving cavity and the oil inlet of the oil pump. The filter assembly filters the insulating oil entering the oil pump. The insulating oil can be filtered sequentially... The oil flows through the filter assembly, oil pump, outlet, and cooling assembly before entering the containment cavity from the inlet. This design allows the insulating oil in the containment cavity to flow back into the containment cavity after passing through the cooling assembly, driven by the oil pump, during the heat dissipation process for the X-ray assembly and high-voltage generating assembly. The filter assembly filters the insulating oil entering the pump, trapping impurities. The filtered oil then re-enters the containment cavity, reducing the likelihood of impurities flowing through high-voltage areas such as the X-ray assembly and high-voltage generating assembly, thus minimizing the risk of discharge and arcing caused by impurities. This reduces the impact of impurities on the insulating strength of the oil, ensuring the normal operation of the high-voltage devices. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a partial structural schematic diagram of the X-ray source according to an embodiment of this application; Figure 2 This is a partial exploded view of the X-ray source according to an embodiment of this application; Figure 3 This is a partial sectional view of the structure of the X-ray source according to an embodiment of this application; Figure 4 This is a partial structural schematic diagram of the X-ray component of the X-ray source according to an embodiment of this application; Figure 5 This is a side cross-sectional view of the first filter element of the X-ray source in an embodiment of this application; Figure 6This is a schematic diagram of fluid flow between some structures of the X-ray source in an embodiment of this application; Figure 7 This is a partial structural exploded view of the X-ray source according to an embodiment of this application; Figure 8 This is a partial structural schematic diagram of the filter assembly of the X-ray source in an embodiment of this application; Figure 9 This is a schematic diagram of the filter housing structure of the X-ray source filter assembly in an embodiment of this application; Figure 10 This is a schematic diagram of fluid flow within the filter assembly of the X-ray source according to an embodiment of this application. Detailed Implementation

[0019] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see Figure 1 and Figure 2 The X-ray source 1000 includes a housing 10, an X-ray assembly 20, a high-voltage generating assembly 30, a cooling assembly 40, an oil pump 50, and a filter assembly 60. The X-ray assembly 20 and the high-voltage generating assembly 30 are disposed within the housing 10 and are electrically connected. The cooling assembly 40 is relatively fixed to the outer wall of the housing 10. A portion of the oil pump 50 is located within the housing 10. The filter assembly 60 is disposed on the oil pump 50. The cooling assembly 40 is interconnected with the oil pump 50 and the interior of the housing 10. The filter assembly 60 can filter the insulating oil entering the oil pump 50.

[0023] The X-ray source 1000 also includes a first connecting pipe 70 and a second connecting pipe 80. The first connecting pipe 70 can be used to connect the oil pump 50 and the cooling assembly 40, and the second connecting pipe 80 can be used to connect the cooling assembly 40 and the interior of the housing 10. The housing 10, X-ray assembly 20, high-voltage generating assembly 30, cooling assembly 40, oil pump 50, filter assembly 60, first connecting pipe 70, and second connecting pipe 80 are described in detail below.

[0024] For the aforementioned housing 10, as Figure 1 and Figure 2 As shown, the housing 10 is provided with a receiving cavity 10a and an outlet 10b and an inlet 10c communicating with the receiving cavity 10a. Insulating oil (not shown) is disposed within the receiving cavity 10a, and the insulating oil permeates the X-ray assembly 20 and the high-voltage generating assembly 30. The receiving cavity 10a can be used to accommodate components such as the insulating oil, the X-ray assembly 20, and the high-voltage generating assembly 30. The inlet 10c communicates with the cooling assembly 40, and the outlet 10b communicates with the cooling assembly 40 and the oil pump 50. The insulating oil located in the receiving cavity 10a flows into the cooling assembly 40 from the outlet 10b under the action of the oil pump 50. Afterward, the insulating oil flowing through the cooling assembly 40 flows into the receiving cavity 10a from the inlet 10c. In some embodiments, the insulating oil is an insulating mineral oil with a cooling effect.

[0025] In some embodiments, the housing 10 is generally rectangular and includes a top plate 101, a bottom plate 102, and a plurality of sequentially connected side plates 103. The plurality of sequentially connected side plates 103 enclose a middle frame portion with openings at both ends. The top plate 101 is connected to one end of the middle frame portion and closes the side opening, and the bottom plate 102 is connected to the other end of the middle frame portion and closes the side opening. The top plate 101, the bottom plate 102, and the middle frame portion together enclose the aforementioned receiving cavity 10a. In some embodiments, both the liquid outlet 10b and the liquid inlet 10c are located on the top plate 101.

[0026] In some embodiments, the sidewall of the housing 10 is provided with a first X-ray opening 1031 communicating with the receiving cavity 10a, through which X-rays generated by the X-ray assembly 20 located in the receiving cavity 10a can be emitted. In some embodiments, the first X-ray opening 1031 is located on one of the side plates 103.

[0027] In some embodiments, to reduce the weight of the X-ray source, the housing 10 may be made of die-cast aluminum or extruded aluminum profile. It is understood that the material selection for the housing 10 is actually diverse and is not specifically limited here. For example, in other embodiments, the housing 10 may be made of steel.

[0028] For the aforementioned X-ray assembly 20 and high-voltage generating assembly 30, such as Figure 2 and Figure 3As shown, the X-ray assembly 20 is disposed in the receiving cavity 10a and is immersed in insulating oil. The X-ray assembly 20 is used to generate X-rays. The high voltage generating assembly 30 is disposed in the receiving cavity 10a and is immersed in insulating oil. The high voltage generating assembly 30 is electrically connected to the X-ray assembly 20.

[0029] In some embodiments, the X-ray assembly 20 includes an X-ray tube 201 and a tube housing 202. The tube housing 202 is fixed relative to the housing 10 and communicates with the receiving cavity 10a. The X-ray tube 201 is located inside the tube housing 202. A second X-ray opening 2021 is provided on the outer wall of the tube housing 202. The second X-ray opening 2021 is disposed opposite to the first X-ray opening 1031, and the X-rays generated by the X-ray tube 201 can be emitted from the second X-ray opening 2021 to the first X-ray opening 1031. In some embodiments, the material used to manufacture the tube housing 202 includes, but is not limited to, lead oxide mixed with epoxy resin. This configuration allows the tube housing 202 to isolate the high-voltage electric field and block the X-rays generated by the X-ray tube 201, ensuring that the X-rays only exit normally from the second X-ray opening 2021, thus reducing the impact of X-rays on other electronic devices located in the receiving cavity 10a.

[0030] It should be noted that X-ray tube 201 specifically refers to a device for generating X-rays, which includes a cathode 201a and an anode 201b. By applying a high voltage, electrons are accelerated from the cathode 201a and collide with the anode 201b to generate X-rays. To generate a sufficiently high voltage to accelerate electrons, X-ray tube 201 needs to be connected to a high-voltage generator. This high-voltage generator is capable of generating and regulating the required high voltage and delivering it between the anode 201b and cathode 201a of X-ray tube 201. In this way, a sufficiently large electric field can be formed inside X-ray tube 201 to accelerate electrons and generate X-rays.

[0031] In some embodiments, please refer to the following: Figure 4 The X-ray assembly 20 also includes a heat sink 203 connected to the X-ray tube 201 and located inside the outer casing 202 of the X-ray tube. Heat generated by the X-ray tube 201 can be conducted to the heat sink 203. The heat sink 203 is immersed in insulating oil, which increases the contact area between the X-ray tube 201 and the insulating oil, thereby improving heat dissipation from the X-ray tube 201. In some embodiments, the heat sink 203 is connected to the anode 201b of the X-ray tube 201, thereby improving heat dissipation from the anode 201b of the X-ray tube 201. It is understood that the heat sink 203 is made of an insulating and thermally conductive material, including but not limited to alumina, aluminum nitride, beryllium oxide, etc.

[0032] In some embodiments, the heat sink 203 is provided with a plurality of heat dissipation through holes 2031, which are immersed in insulating oil, thereby increasing the contact area between the heat sink 203 and the insulating oil and thus improving the heat dissipation efficiency of the heat sink 203.

[0033] For the aforementioned cooling assembly 40, oil pump 50, first connecting pipe 70, and second connecting pipe 80, as Figure 1 and Figure 2 As shown, the cooling assembly 40 is disposed on the outer wall of the housing 10. The cooling assembly 40 is connected to the liquid outlet 10b and the liquid inlet 10c. The oil pump 50 is disposed on the housing 10, with part of the oil pump 50 located in the receiving cavity 10a. The oil outlet 50b of the oil pump 50 is connected to the receiving cavity 10a and the liquid outlet 10b. The first connecting pipe 70 and the second connecting pipe 80 are both located in the receiving cavity 10a. One end of the first connecting pipe 70 is connected to the oil outlet 50b of the oil pump 50, and the other end of the first connecting pipe 70 is connected to the liquid outlet 10b. The insulating oil flowing out from the oil outlet 50b of the oil pump 50 can flow through the first connecting pipe 70 to the liquid outlet 10b and then flow into the cooling assembly 40 from the liquid outlet 10b. One end of the second connecting pipe 80 is connected to the liquid inlet 10c, and the other end of the second connecting pipe 80 is connected to the receiving cavity 10a. The insulating oil cooled by the cooling assembly 40 flows from the liquid inlet 10c through the second connecting pipe 80 into the receiving cavity 10a.

[0034] In some embodiments, please refer to the following: Figure 3 The other end of the second connecting pipe 80 is provided with a first filter element 801. The first filter element 801 can filter the insulating oil flowing into the receiving cavity 10a from the second connecting pipe 80, so as to reduce the flow of impurities in the insulating oil into the receiving cavity 10a, thereby reducing the impact on the high-voltage devices located in the receiving cavity 10a. It is understood that the filtration principle of the first filter element 801 includes, but is not limited to, screen filtration, cylindrical centrifugal filtration, microporous filter element filtration, etc. In some embodiments, please refer to... Figure 5 The first filter element 801 includes a mounting bracket 8011 and a plurality of filter screen structures 8012 located on the mounting bracket 8011. The plurality of filter screen structures 8012 enclose a filtration space 801a, in which the screened impurities are retained.

[0035] In some embodiments, please refer to Figure 2 and Figure 3A tee pipe 802 is provided on the second connecting pipe 80. A branch pipe 8021 of the tee pipe 802 connects to the X-ray tube outer cover 202, and the tee pipe 802 and the X-ray tube outer cover 202 are interconnected. A second filter element 803 is provided on the branch pipe 8021. The second filter element 803 is located inside the X-ray tube outer cover 202. The second filter element 803 can filter the insulating oil flowing into the X-ray tube outer cover 202 from the second connecting pipe 80, thereby reducing the inflow of impurities from the insulating oil into the X-ray tube outer cover 202 and minimizing its impact on the X-ray tube 201 located inside the X-ray tube outer cover 202. It is understood that the second filter element 803 has the same structure as the first filter element 801. The structure of the second filter element 803 can be referred to the structure of the first filter element 801 described above. The filtration principle of the second filter element 803 includes, but is not limited to, screen filtration, cylindrical centrifugal filtration, microporous filter element filtration, etc.

[0036] In some embodiments, the cooling assembly 40 includes a cooling body 401 and an inlet 402 and an outlet 403 communicating with the interior of the cooling body 401. Both the inlet 402 and the outlet 403 are connected to an external refrigerant circulation device, which dissipates heat from the insulating oil flowing into the cooling body 401. It is understood that the cooling principle of the cooling assembly 40 is not limited to the aforementioned refrigerant circulation device; other principles may also be used, such as using a fan and heat sink fins for heat dissipation.

[0037] For ease of understanding, the circulation path of the insulating oil is described below. Please refer to the following for details. Figure 6 The heat generated by the X-ray tube 201 and the high-voltage generating component 30 during operation is absorbed by the insulating oil stored in the receiving cavity 10a, and the temperature of the insulating oil is raised. The higher-temperature insulating oil can be pumped to the cooling component 40 by the oil pump 50. The cooling component 40 performs heat exchange on the insulating oil inside. After heat dissipation, the insulating oil flows back into the receiving cavity 10a from the liquid inlet 10c for circulation. In this circulation path, the liquid inlet 10c on the housing 10 can be used as the cold oil outlet of the cooling component 40, and the liquid outlet 10b on the housing 10 can be used as the hot oil inlet of the cooling component 40.

[0038] In some embodiments, please refer to the following: Figure 7 The oil pump 50 is equipped with a flow guide 501. The oil inlet 50a and the oil outlet 50b of the oil pump 50 are connected to the inside of the flow guide 501. The flow guide 501 can guide the insulating oil entering from the oil inlet 50a to the oil outlet 50b.

[0039] For the aforementioned filter component 60, such as Figure 2 and Figure 7As shown, the filter assembly 60 is mounted on the oil pump 50. The filter assembly 60 connects the receiving cavity 10a and the oil inlet 50a of the oil pump 50. The filter assembly 60 filters the insulating oil entering the oil pump 50, and impurities in the insulating oil are retained in the filter assembly 60. The filtered insulating oil then re-enters the receiving cavity 10a, thereby reducing the amount of impurities flowing through high-voltage areas such as the X-ray assembly 20 and the high-voltage generating assembly 30. This reduces the risk of discharge and sparking caused by impurities flowing through high-voltage areas, and thus reduces the impact of impurities on the insulating strength of the insulating oil. It should be noted that when the oil pump 50 drives the insulating oil to flow, impurities in the insulating oil are adsorbed onto the filter assembly 60 by the flow of the insulating oil, thus achieving the goal of retaining the impurities on the filter assembly 60.

[0040] In some embodiments, please refer to the following: Figures 8-10 The filter assembly 60 includes a mounting frame 601 and a filter screen 602 mounted on the inner wall of the mounting frame 601. The filter screen 602 encloses a filter chamber 60a. The mounting frame 601 covers the oil inlet 50a of the oil pump 50, and the filter chamber 60a is connected to the oil inlet 50a. The mounting frame 601 is used for mounting the filter screen 602, which filters the insulating oil entering the oil inlet 50a to block and filter impurities, reducing the amount of impurities entering the oil pump 50 and recirculating into the receiving cavity 10a. The insulating oil filtered by the filter screen 602 flows through the filter chamber 60a into the oil inlet 50a. The filtered oil may experience pulsations or local high pressure due to the resistance of the filter screen 602. The filter chamber 60a reduces the flow velocity impact by increasing the flow cross-sectional area, preventing air bubbles from mixing in or oil from splashing, ensuring that the filtered oil enters the oil inlet 50a smoothly and evenly.

[0041] It is understood that this application does not specify the exact size of the filter 602, and users can choose according to their actual needs.

[0042] In some embodiments, the filter assembly 60 further includes a filter cover 603, which has a deposition chamber 603a and an oil inlet channel 603b communicating with the deposition chamber 603a. The oil inlet channel 603b communicates with the receiving cavity 10a. The filter cover 603 covers the oil inlet 50a. The mounting frame 601 is located inside the deposition chamber 603a. The oil inlet channel 603b is disposed opposite to the mounting frame 601. The insulating oil in the receiving cavity 10a can enter the deposition chamber 603a through the oil inlet channel 603b. The insulating oil entering the deposition chamber 603a is filtered by the filter screen 602 and flows into the oil reservoir. Impurities screened out at the oil inlet 50a of pump 50 are retained in the sedimentation chamber 603a of filter cover 603. The sedimentation chamber 603a can receive impurities. When the oil pump 50 stops working, due to the slow flow of insulating oil, some impurities are difficult to be adsorbed on the filter screen 602. At this time, the sedimentation chamber 603a on the filter cover 603 can receive impurities, reducing the number of impurities flowing through high-voltage areas such as X-ray component 20 and high-voltage generating component 30 with the insulating oil. This reduces the discharge and sparking caused by impurities flowing through high-voltage areas, thereby reducing the impact of impurities on the insulation strength of the insulating oil.

[0043] In some embodiments, the filter cover 603 includes a first inner wall 6031, which is disposed opposite to the oil inlet 50a of the oil pump 50. The first inner wall 6031 extends a first protruding ring 60311 in the direction of the oil inlet 50a. The first protruding ring 60311 is disposed around the oil inlet channel 603b. There are multiple first protruding rings 60311, which are arranged radially and spaced apart from each other along the oil inlet channel 603b. A first sedimentation tank 6031a is formed between adjacent first protruding rings 60311. The first sedimentation tank 6031a can receive impurities, reduce the free flow of impurities in the sedimentation chamber 603a, and reduce the flow of impurities to the high-pressure area in the receiving chamber 10a.

[0044] In some embodiments, the filter cover 603 further includes a second arc-shaped wall 6032 located within the deposition chamber 603a. A plurality of protrusions 60321 extend from the second arc-shaped wall 6032, and the plurality of protrusions 60321 are spaced apart from each other. The plurality of protrusions 60321 surround the mounting frame 601, and a second deposition groove 6032a is formed between adjacent protrusions 60321. The second deposition groove 6032a can receive impurities, reduce the free flow of impurities within the deposition chamber 603a, and reduce the flow of impurities to the high-pressure area within the receiving chamber 10a.

[0045] It is understandable that, in order to catch impurities, the filter cover 603 may not be limited to the above-mentioned groove structure, but may also have other hole or gap structures.

[0046] In some embodiments, the oil inlet channel 603b includes a first oil inlet hole 6033 and a second oil outlet hole 6034. The first oil inlet hole 6033 and the second oil outlet hole 6034 are arranged opposite to each other. The second oil outlet hole 6034 is located in the deposition chamber 603a. The diameter of the first oil inlet hole 6033 is larger than the diameter of the second oil outlet hole 6034. The oil inlet channel 603b is designed with a "wide outside and narrow inside" structure. This arrangement can reduce the flow of impurities in the deposition chamber 603a into the receiving cavity 10a of the housing 10.

[0047] In this embodiment, a housing 10, an X-ray assembly 20, a high-voltage generating assembly 30, a cooling assembly 40, an oil pump 50, and a filter assembly 60 are provided. The housing 10 includes a receiving cavity 10a and an outlet 10b and an inlet 10c connecting the receiving cavity 10a. Insulating oil is contained within the receiving cavity 10a. An X-ray assembly 20 is disposed within the receiving cavity 10a and is immersed in the insulating oil. The X-ray assembly 20 generates X-rays. A high-voltage generating assembly 30 is disposed within the receiving cavity 10a and is immersed in the insulating oil. The high-voltage generating assembly 30 is electrically connected to the X-ray assembly 20. A cooling assembly 40 is disposed on the outer wall of the housing 10 and connects the outlet 10b and the inlet 10c. An oil pump 50 is disposed within the housing 10, with a portion of the oil pump 50 located within the receiving cavity 10a. The oil outlet 50b of the oil pump 50 connects the receiving cavity 10a and the outlet 10b. A filter assembly 60 is disposed on the oil pump 50 and connects the receiving cavity 10a and the oil inlet 50a of the oil pump 50. The filter assembly 60 can... The insulating oil entering the oil pump 50 is filtered. The insulating oil flows sequentially through the filter assembly 60, the oil pump 50, the outlet 10b, and the cooling assembly 40 until it flows into the receiving cavity 10a from the inlet 10c. With this configuration, during the heat dissipation process of the X-ray assembly 20 and the high-voltage generating assembly 30, the insulating oil in the receiving cavity 10a flows through the cooling assembly 40 under the drive of the oil pump 50 and then flows back into the receiving cavity 10a. The user can use the filter assembly 60 to filter the insulating oil entering the oil pump 50. Impurities in the insulating oil are retained in the filter assembly 60. The filtered insulating oil re-enters the receiving cavity 10a, thereby reducing the amount of impurities flowing through the high-voltage areas such as the X-ray assembly 20 and the high-voltage generating assembly 30. This reduces the risk of discharge and sparking caused by impurities flowing through the high-voltage areas, and thus reduces the impact of impurities on the insulation strength of the insulating oil, ensuring the normal operation of the high-voltage devices.

[0048] This application also provides an embodiment of a detection device, which includes the X-ray source 1000 as described above. The function and structure of the X-ray source 1000 can be found in the above embodiments, and will not be repeated here.

[0049] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An X-ray source, characterized in that, include: The housing has a receiving cavity and an outlet and an inlet communicating with the receiving cavity, and the receiving cavity is filled with insulating oil; An X-ray assembly is disposed within the receiving cavity, the X-ray assembly is immersed in the insulating oil, and the X-ray assembly is used to generate X-rays; A high-voltage generating component is disposed within the receiving cavity, the high-voltage generating component is immersed in the insulating oil, and the high-voltage generating component is electrically connected to the X-ray component; A cooling assembly is disposed on the outer wall of the housing, and the cooling assembly is connected to the liquid outlet and the liquid inlet; An oil pump is disposed in the housing, with a portion of the oil pump located within the receiving cavity, and the oil outlet of the oil pump connecting the receiving cavity and the liquid outlet; A filter assembly is disposed on the oil pump. The filter assembly is connected to the receiving cavity and the oil inlet of the oil pump. The filter assembly can filter the insulating oil entering the oil pump. The insulating oil can flow sequentially through the filter assembly, oil pump, outlet, and cooling assembly until it flows into the receiving cavity from the inlet.

2. The X-ray source according to claim 1, characterized in that, The filter assembly includes a mounting frame and a filter screen installed on the inner wall of the mounting frame. The filter screen forms a filter cavity. The mounting frame covers the oil inlet of the oil pump, and the filter cavity is connected to the oil inlet.

3. The X-ray source according to claim 2, characterized in that, The filter assembly further includes a filter cover, which has a deposition chamber and an oil inlet channel communicating with the deposition chamber. The oil inlet channel communicates with the receiving chamber. The filter cover is placed over the oil inlet. The mounting frame is located inside the deposition chamber. The oil inlet channel is disposed opposite to the mounting frame. Insulating oil located in the receiving chamber can enter the deposition chamber through the oil inlet channel.

4. The X-ray source according to claim 3, characterized in that, The filter cover includes a first inner wall, which is disposed opposite to the oil inlet of the oil pump. A first protruding ring extends from the first inner wall toward the oil inlet and surrounds the oil inlet channel. There are multiple first protruding rings, which are arranged radially apart from each other along the oil inlet channel, and a first sedimentation tank is formed between adjacent first protruding rings.

5. The X-ray source according to claim 4, characterized in that, The filter cover also includes a second arc-shaped wall located inside the deposition chamber. Multiple protrusions extend from the second arc-shaped wall, and the multiple protrusions are spaced apart from each other. The multiple protrusions surround the mounting frame, and a second deposition groove is formed between adjacent protrusions.

6. The X-ray source according to claim 4, characterized in that, The oil inlet channel includes a first oil inlet and a second oil outlet, which are arranged opposite to each other. The second oil outlet is located inside the deposition chamber, and the diameter of the first oil inlet is larger than the diameter of the second oil outlet.

7. The X-ray source according to claim 1, characterized in that, The side wall of the housing is provided with a first ray opening that communicates with the receiving cavity; The X-ray assembly includes an X-ray tube and a tube cover. The tube cover is fixed to the housing and communicates with the receiving cavity. The X-ray tube is located inside the tube cover. A second X-ray opening is provided on the outer wall of the tube cover. The second X-ray opening is opposite to the first X-ray opening. X-rays generated by the X-ray tube can be directed from the second X-ray opening to the first X-ray opening.

8. The X-ray source according to claim 7, characterized in that, The X-ray source also includes a first connecting pipe and a second connecting pipe, both of which are located within the receiving cavity. One end of the first connecting pipe is connected to the oil outlet of the oil pump, and the other end is connected to the liquid outlet. One end of the second connecting pipe is connected to the liquid inlet, and the other end is connected to the receiving cavity. A first filter element is provided at the other end of the second connecting pipe, which can filter the insulating oil flowing into the receiving cavity from the second connecting pipe.

9. The X-ray source according to claim 8, characterized in that, The second connecting pipe is provided with a tee pipe, and the branch pipe of the tee pipe is connected to the outer cover of the ray tube. The tee pipe and the outer cover of the ray tube are interconnected. The branch pipe is provided with a second filter element, which is located inside the outer cover of the ray tube. The second filter element can filter the insulating oil flowing into the outer cover of the ray tube from the second connecting pipe.

10. The X-ray source according to claim 7, characterized in that, The X-ray assembly also includes a heat sink connected to the X-ray tube and located inside the outer casing of the X-ray tube.

11. A testing device, characterized in that, Includes the X-ray source as described in any one of claims 1-10.

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