Micro-focus X-ray source high-voltage power supply introduction metal box body structure

Abstract

The utility model relates to a micro-focus X-ray source high-voltage power supply introduction metal box body structure, and belongs to the technical field of micro-focus X-ray source manufacturing. Comprising a metal box body, a cover plate covers the bottom of the metal box body, a circuit board is arranged between the metal box body and the cover plate, and the metal box body, the cover plate and the circuit board are fixedly connected; the bottom surface of the metal box body and the top surface of the cover plate are respectively provided with a sealing groove, and sealing rings are respectively clamped in the sealing grooves, so that one sealing ring is arranged on the contact surface of the circuit board and the metal box body, and the other sealing ring is arranged on the contact surface of the circuit board and the cover plate. The circuit board is provided with an electric connection hole, the electric connection hole is exposed out of the metal box body, and the electric connection hole is electrically connected with an external power supply. The circuit board comprises a current-conducting plate, and insulating plates are arranged on the two sides of the current-conducting plate respectively. The installation is convenient, the size of the metal box body is not increased, the structure is small, the sealing performance of the metal box body is improved, and the product reliability is improved.

Description

A micro-focus X-ray source high-voltage power supply is introduced into a metal housing structure. Technical Field

[0001] This utility model relates to a high-voltage power supply for a micro-focus X-ray source with a metal housing structure, belonging to the field of micro-focus X-ray source manufacturing technology. Background Technology

[0002] Micro-focus X-ray sources are high-performance X-ray generating devices that reduce the size of the X-ray focus to the micrometer level (typically ≤10μm) through precise design. Their core advantage lies in high-resolution imaging capabilities, and they are widely used in fields such as industrial inspection, semiconductor manufacturing, and medical diagnostics.

[0003] A micro-focus X-ray source mainly consists of an X-ray tube and a high-voltage power supply. The high-voltage power supply converts low-voltage DC electricity into 90kV~300kV high-voltage DC electricity, which is applied between the cathode and anode components of the X-ray tube.

[0004] The high-voltage power supply mainly consists of a voltage multiplier circuit composed of capacitors and diodes. This voltage multiplier circuit requires protection through solid insulation or transformer oil insulation. When using transformer oil insulation, an external power input must be introduced into the high-voltage oil tank, while simultaneously ensuring the tank's airtightness is not compromised.

[0005] The traditional method of introducing power into a sealed enclosure involves welding a flange to the outside of the metal enclosure, and then installing a vacuum aviation connector on the flange via a sealing ring. Vacuum aviation connectors are bulky and prone to oil leaks during installation, severely hindering product miniaturization and reducing product reliability. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a metal housing structure for introducing high voltage power supply to a micro-focus X-ray source, which is easy to install, does not increase the size of the metal housing, ensures the sealing of the metal housing, and improves product reliability.

[0007] The technical solution adopted by this utility model to solve the above problems is as follows: a metal box structure for introducing high voltage power supply of micro-focus X-ray source, including a metal box, a cover plate at the bottom of the metal box, a circuit board between the metal box and the cover plate, and the three are fixedly connected; sealing grooves are respectively opened on the bottom surface of the metal box and the top surface of the cover plate, and sealing rings are respectively installed in the sealing grooves, so that one sealing ring is located on the contact surface between the circuit board and the metal box, and the other sealing ring is located on the contact surface between the circuit board and the cover plate.

[0008] The circuit board has electrical connection holes that expose the metal housing and are electrically connected to an external power source.

[0009] The circuit board includes a conductive plate, and insulating plates are respectively disposed on both sides of the conductive plate.

[0010] The conductive plate is made of copper foil.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: A high-voltage power supply for a micro-focus X-ray source is introduced into a metal housing structure, which facilitates installation. The circuit board is fixed between the metal housing and the cover plate without increasing the size of the metal housing, resulting in a compact structure. Sealing rings are provided on the contact surfaces between the circuit board and the metal housing and cover plate, improving the sealing performance of the metal housing and enhancing product reliability. Attached Figure Description

[0012] Figure 1 is an exploded view of a metal box structure for introducing a high-voltage power supply to a micro-focus X-ray source according to an embodiment of the present invention.

[0013] Figure 2 is a schematic diagram of the circuit board;

[0014] Figure 3 is a schematic diagram of AA in Figure 2;

[0015] In the diagram: 1. Metal housing; 2. Sealing ring; 3. Circuit board; 3.1 Insulating board; 3.2 Conductive board; 4. Cover plate; 5. Screws. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] As shown in Figures 1, 2, and 3, this embodiment of a micro-focus X-ray source high-voltage power supply introduces a metal housing structure, including a metal housing 1. The bottom of the metal housing 1 is open, and a cover plate 4 is placed over the open end of the metal housing 1. A circuit board 3 is placed between the metal housing 1 and the cover plate 4. The three are fixedly connected by multiple screws 5, so that the circuit board 3 is fixed between the metal housing 1 and the cover plate 4. Annular sealing grooves are respectively formed on the open end face of the metal housing 1 and the top end face of the cover plate 4. Sealing rings 2 are respectively installed in the sealing grooves, so that one sealing ring 2 is placed on the contact surface between the circuit board and the metal housing, and the other sealing ring is placed on the contact surface between the circuit board and the cover plate, thereby achieving a seal at the connection between the metal housing and the cover plate.

[0018] The circuit board includes a conductive plate 3.2, with insulating plates 3.1 on both sides of the conductive plate 3.2. The circuit board has electrical connection holes that protrude from the metal housing and are electrically connected to an external power source, thereby introducing the external power source into the inner cavity of the metal housing.

[0019] The aforementioned conductive plate is made of copper foil.

[0020] This application offers convenient installation, fixing the circuit board between the metal housing and the cover plate without increasing the size of the metal housing, resulting in a compact structure. Sealing rings are installed on the contact surfaces between the circuit board and the metal housing and cover plate, improving the sealing performance of the metal housing and enhancing product reliability.

[0021] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A high-voltage power supply for a micro-focus X-ray source is introduced into a metal housing structure, characterized in that: The device includes a metal housing, with a cover plate at the bottom of the metal housing. A circuit board is provided between the metal housing and the cover plate, and the three are fixedly connected. Sealing grooves are respectively opened on the bottom surface of the metal housing and the top surface of the cover plate. Sealing rings are respectively installed in the sealing grooves, such that one sealing ring is located on the contact surface between the circuit board and the metal housing, and the other sealing ring is located on the contact surface between the circuit board and the cover plate.

2. The metal housing structure for introducing high-voltage power supply to a micro-focus X-ray source according to claim 1, characterized in that: The circuit board has electrical connection holes that expose the metal housing and are electrically connected to an external power source.

3. The metal housing structure for introducing a high-voltage power supply to a micro-focus X-ray source according to claim 1, characterized in that: The circuit board includes a conductive plate, and insulating plates are respectively disposed on both sides of the conductive plate.

4. The metal housing structure for introducing a high-voltage power supply to a micro-focus X-ray source according to claim 3, characterized in that: The conductive plate is made of copper foil.

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