Outer beryllium window device bulb tube

Abstract

The utility model discloses an outer beryllium window device bulb tube which comprises a glass bulb, an anode assembly and a cathode assembly are installed in the glass bulb, a side hole is formed in the position, corresponding to the perpendicular bisector of a beam outlet window, of the glass bulb, a Kovar ring is installed on the inner side of the side hole, a beryllium piece installation frame is fixedly connected to the inner side of the Kovar ring, and a beryllium piece is installed on the beryllium piece installation frame. A light-transmitting beryllium sheet is mounted on the beryllium sheet mounting rack; the connecting mechanism comprises a connecting flange arranged on the glass bulb, the left side of the connecting flange is fixedly connected with the kovar ring and the beryllium sheet mounting frame, a plurality of flange mounting holes are formed in the right side of the connecting flange, the interior of the glass bulb is in a vacuum shape, and the diameter of the middle of the glass bulb is larger than that of the two ends of the glass bulb. A radiator is installed at the lower end of the glass bulb and used for dissipating heat of the anode assembly. Compared with the prior art, the bulb tube has the advantages that the glass bulb can be directly mounted on the light source shell, so that the X-ray intensity can effectively improve the imaging definition of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of food security inspection, in particular to a ball tube with an external beryllium window device. Background Art

[0002] In the current electronics and food industries, the detection equipment used in the market generally adopts conventional 80KV - 160KV X-ray tubes. The existing conventional glass tubes need to be immersed in insulating oil. When X-rays are emitted from the tube, they need to pass through the beryllium sheet and glass of the tube itself first, and then through the insulating oil and filter. The effective filtration reaches 2.5mm, and the filtration is too large. The insulating oil can also block some rays, which not only reduces the ray intensity, but also causes low-energy rays to be filtered out. As a result, the imaging clarity of electronic and food detection equipment is not ideal, and the imaging effect is poor. There is a need to improve the research technology in detection and other applications and develop in the direction of higher resolution. Content of the Utility Model

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a ball tube with an external beryllium window device is proposed. Compared with the prior art, this ball tube can directly install the glass shell on the light source shell, thereby increasing the intensity of X-rays and effectively improving the imaging clarity of the equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A ball tube with an external beryllium window device includes a glass shell. An anode assembly and a cathode assembly are installed inside the glass shell. A side hole is opened on the right side in the middle of the glass shell. A kovar ring is installed on the inner side of the side hole. A beryllium sheet mounting frame is fixedly connected to the inner side of the kovar ring. A light-transmitting beryllium sheet is installed on the beryllium sheet mounting frame; a connecting mechanism, the connecting mechanism includes a connecting flange arranged on the glass shell. The left side of the connecting flange is fixedly connected to both the kovar ring and the beryllium sheet mounting frame. A plurality of flange mounting holes are opened on the right side of the connecting flange.

[0006] Preferably, the inside of the glass shell is in a vacuum state.

[0007] Preferably, the diameter in the middle of the glass shell is larger than the diameters at both ends of the glass shell.

[0008] Preferably, a radiator is installed at the lower end of the glass shell, and the radiator is used to dissipate heat from the anode assembly.

[0009] Preferably, a flange sealing groove is arranged on the connecting flange.

[0010] Preferably, the material of the beryllium sheet mounting frame is high-nickel alloy.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The light-transmitting beryllium sheet and the beryllium sheet mounting bracket form a glass window. When in use, it can not only seal the light tube and maintain the vacuum inside the light tube, but also play a certain filtering role for low-performance X-rays, and has a small shielding effect on X-rays, allowing X-rays to effectively penetrate. Compared with the prior art, the ray emission part on the X-ray tube is hermetically connected to the X-ray beam outlet on the outer shell of the light source body, and there is only a layer of beryllium window in the middle, so that the X-rays can directly shoot out of the light source body through the beryllium window for application, without being filtered and weakened by glass and insulating oil, and the emission intensity of the X-rays can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic structural diagram of a tube with an outer beryllium window device proposed by the present invention;

[0014] Figure 2 is Figure 1 a schematic view of the right side of the flange of;

[0015] Figure 3 is Figure 1 a schematic connection diagram with the light source housing.

[0016] In the figure: 1 glass shell, 2 radiator, 3 anode assembly, 4 cathode assembly, 5 connecting flange, 6 light-transmitting beryllium sheet, 7 kovar ring, 8 flange sealing groove, 9 flange mounting hole, 10 beryllium sheet mounting bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] It should be noted that in the description of the present application, the orientation terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" usually refer to the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0019] Refer to Figures 1 - 3, an external beryllium window device X-ray tube, comprising a glass envelope 1. The interior of the glass envelope 1 is in a vacuum state. The diameter of the middle part of the glass envelope 1 is larger than that of both ends of the glass envelope 1. The smaller ends can effectively block secondary electrons and avoid the phenomenon of hitting the lamp. Inside the glass envelope 1, an anode assembly 3 and a cathode assembly 4 are installed. The anode assembly 3 includes an anode cap, an anode head, and a tungsten plate target. The anode cap is arranged inside the glass envelope 1. The anode head is arranged on the anode cap. A part of the anode head is arranged inside the glass envelope 1, and the other part of the anode head penetrates through the end of the glass envelope 1 and extends outside the glass envelope 1. The tungsten plate target is arranged at one end of the anode head close to the anode cap. The cathode assembly 4 includes a focusing head and a filament. The focusing head is arranged at one end of the glass envelope 1 far from the anode cap. The filament is arranged inside the focusing head. A connecting pipe is arranged on the focusing head. The connecting pipe is arranged outside the glass envelope 1. A lead is arranged inside the connecting pipe. This is the prior art. Specifically, it can be seen in the utility model patent with the publication number CN208690201U. A side hole is opened on the right side of the middle part of the glass envelope 1. This side hole corresponds to the perpendicular bisector of the beam output window (formed by the beryllium sheet mounting bracket 10 and the light-transmitting beryllium sheet 6). A kovar ring 7 is installed on the inner side of the side hole. The inner side of the kovar ring 7 is fixedly connected to the beryllium sheet mounting bracket 10. The light-transmitting beryllium sheet 6 is installed on the beryllium sheet mounting bracket 10. The material of the beryllium sheet mounting bracket 10 is high-nickel alloy, and high-nickel is easy to be brazed with beryllium material;

[0020] Among them, a radiator 2 is installed at the lower end of the glass envelope 1. The radiator 2 is used to dissipate heat from the anode assembly 3;

[0021] Among them, a connecting mechanism is further included. The connecting mechanism includes a connecting flange 5 arranged on the glass envelope 1. The left side of the connecting flange 5 is fixedly connected to both the kovar ring 7 and the beryllium sheet mounting bracket 10. Here, the fixation is achieved by welding. A plurality of flange mounting holes 9 are opened on the right side of the connecting flange 5. A flange sealing groove 8 is arranged on the connecting flange 5. When connecting specifically later, a sealing ring is placed in the flange sealing groove 8 to ensure that the insulating oil in the optical machine cavity does not penetrate and there is no vacuum leakage.

[0022] In the present utility model, during actual use, through the connecting flange 5, the X-ray tube is directly connected to the inner wall of the light source housing. When connecting, a sealing ring also needs to be installed at the flange sealing groove 8 to avoid the penetration of the insulating oil in the optical machine cavity and vacuum leakage, corresponding to the hollow light hole on the inner wall of the light source housing, as Figure 3 shown. The ray is emitted through the cathode assembly 4, then diffused at the anode assembly 3, and finally passes through the light-transmitting beryllium sheet 6 and is directly emitted outside the optical machine body for application. In this way, compared with the prior art, the intensity of the X-ray increases, and the imaging clarity of the equipment can be effectively improved.

[0023] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An external beryllium window device bulb, comprising a glass shell (1), wherein an anode assembly (3) and a cathode assembly (4) are installed inside the glass shell (1), characterized in that: A side hole is provided on the right side of the middle of the glass shell (1), a kovar ring (7) is installed on the inner side of the side hole, a beryllium plate mounting frame (10) is fixedly connected to the inner side of the kovar ring (7), and a light-transmitting beryllium plate (6) is installed on the beryllium plate mounting frame (10); A connecting mechanism, the connecting mechanism comprising a connecting flange (5) arranged on a glass shell (1), the left side of the connecting flange (5) being fixedly connected to a Kovar ring (7) and a beryllium plate mounting frame (10), and the right side of the connecting flange (5) being provided with a plurality of flange mounting holes (9).

2. The outer beryllium window device tube according to claim 1, characterized in that: The interior of the glass shell (1) is in a vacuum state.

3. The outer beryllium window device tube according to claim 1, characterized in that: The diameter of the middle portion of the glass shell (1) is greater than the diameters of the two ends of the glass shell (1).

4. The outer beryllium window device tube according to claim 1, characterized in that: A heat sink (2) is installed at the lower end of the glass shell (1), and the heat sink (2) is used to dissipate heat from the anode assembly (3).

5. The outer beryllium window device tube according to claim 1, characterized in that: The connecting flange (5) is provided with a flange sealing groove (8).

6. The outer beryllium window device tube according to claim 1, characterized in that: The beryllium sheet mounting frame (10) is made of high-nickel alloy.

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