A filament holder mounting structure for a mass spectrometer ion source

Abstract

The utility model relates to a kind of filament support mounting structure of mass spectrometer ion source, including source heating block, filament and filament support, the both sides of the source heating block are symmetrically provided with locating groove, one end of the filament support is matched with recess and is fixed in locating groove, the filament is installed in the other end of filament support.The utility model is matched with the organic cooperation of source heating block locating groove by filament support, the accurate clamping of filament support is realized, the difficulty of user operation is reduced by the installation and dismounting of filament support, the replacement and cleaning maintenance of filament are simple and fast, so as to improve the maintainability of equipment, guarantee the stability of mass spectrometer.

Description

Technical Field

[0001] This utility model relates to a filament support mounting structure for an ion source of a mass spectrometer, belonging to the field of mass spectrometer equipment installation technology. Background Technology

[0002] A mass spectrometer, also known as a mass spectrometer, is an instrument used to separate and detect different isotopes. Its principle is based on the deflection of charged particles in an electromagnetic field, separating and detecting substances according to the mass differences of atoms, molecules, or molecular fragments. The ion source is one of the core components of a mass spectrometer, and the filament, as a crucial part of the ion source, directly affects the performance and reliability of the mass spectrometer. Over time, the filament's performance deteriorates or it breaks, requiring replacement. Traditional filament holders are difficult to align during filament installation, making filament replacement complex and requiring highly skilled technicians, thus increasing maintenance difficulty and cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a filament support mounting structure for a mass spectrometer ion source, which facilitates the installation and maintenance of the filament through a modular and detachable structural design.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A filament support mounting structure for a mass spectrometer ion source includes a source heating block, a filament, and a filament support. The source heating block has symmetrically arranged positioning grooves on both sides. One end of the filament support matches the shape of the groove and is fixed in the positioning groove. The filament is mounted on the other end of the filament support.

[0006] Furthermore, the filament bracket includes a filament fixing end and a Z-shaped fixing piece fixed thereto. The filament is installed on the filament fixing end, the middle part of the Z-shaped fixing piece is locked in the positioning groove, one end of the Z-shaped fixing piece is fastened to the end face of the source heating block, and is fixed to the source heating block by an extension screw.

[0007] Furthermore, the filament fixing end and the Z-shaped fixing piece are fixed together by screws.

[0008] Furthermore, to facilitate the opening of the positioning groove, the positioning groove is opened along the horizontal direction on both sides of the source heating block.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model achieves precise positioning of the filament support by organically cooperating with the positioning groove of the source heating block. The installation and disassembly of the filament support reduces the difficulty of operation for users, making the replacement and cleaning of the filament simple and quick, thereby improving the maintainability of the equipment and ensuring the stability of the mass spectrometer.

[0011] 2. This utility model simplifies the existing filament fixing method through the connection structure between the filament bracket and the source heating block, and realizes rapid maintenance of the filament. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0013] Figure 2 This is an exploded view of a preferred embodiment of the present invention.

[0014] Figure 3 This is a side view of a preferred embodiment of the present invention.

[0015] Figure 4 for Figure 3 The right-hand view.

[0016] Figure 5 For along Figure 3 Cross-sectional view at point AA.

[0017] Figure 6 For along Figure 3 Cross-sectional view at point BB.

[0018] Figure 7 This is a schematic diagram of the structure of the filament and filament support in this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The objectives, technical solutions, and advantages of the present invention will become clearer from the following description. It should be noted that the described embodiments are preferred embodiments of the present invention, but not all embodiments.

[0020] Combination Figure 1 , Figure 2 and Figure 3 As shown, a filament support mounting structure for a mass spectrometer ion source includes a source heating block 1, a filament 2, and a filament support 3. The source heating block 1 has symmetrically arranged positioning grooves 1a on both sides along the horizontal direction. One end of the filament support 3 matches the shape of the groove and is fixed in the positioning groove 1a. The filament 2 is installed at the other end of the filament support 3.

[0021] As a preferred option, and with reference to Figure 7The filament support 3 includes a filament fixing end 3a and a Z-shaped fixing piece 3b, which can be fixed together by screws 9. The filament 2 is installed on the filament fixing end 3a, the middle part of the Z-shaped fixing piece 3b is inserted into the positioning groove 1a, one end of the Z-shaped fixing piece 3b is fastened to the end face of the source heating block 1, and fixed to the source heating block 1 by an extension screw 4.

[0022] Combination Figures 4 to 6 As shown, the top of the ionization chamber 7 passes through the hole in the middle of the source heating block 1 and is then fixed with a nut. A spacer 6 is fitted between the ionization chamber 7 and the source heating block 1 to achieve a seal. The ionization chamber 7 is fixed to the ion source cylinder 8. The guide port 5 is screwed into the ion source cylinder 8. The filament 2 is fixed to the filament support 3, and then the filament support 3 is inserted into the positioning groove on the side of the source heating block 1 and fixed to the source heating block 1.

[0023] This invention achieves precise positioning of the filament support by organically cooperating with the positioning groove of the source heating block. The installation and disassembly of the filament support reduces the difficulty of operation for users, making filament replacement and cleaning maintenance simple and quick, thereby improving the maintainability of the equipment and ensuring the stability of the mass spectrometer.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Obviously, any person skilled in the art can easily conceive of substitutions or variations based on the above embodiments to obtain other embodiments, and these should all be covered within the scope of protection of the present utility model.

Claims

1. A filament support mounting structure for an ion source of a mass spectrometer, comprising a source heating block, a filament, and a filament support, characterized in that: The heating source block has symmetrical positioning grooves on both sides. One end of the filament bracket matches the shape of the groove and is fixed in the positioning groove. The filament is installed at the other end of the filament bracket. The filament support includes a filament fixing end and a Z-shaped fixing piece fixed thereto. The filament is installed on the filament fixing end, the middle part of the Z-shaped fixing piece is stuck in the positioning groove, one end of the Z-shaped fixing piece is fastened to the end face of the source heating block, and is fixed to the source heating block by an extension screw.

2. The filament support mounting structure for the ion source of a mass spectrometer according to claim 1, characterized in that: The filament fixing end and the Z-shaped fixing piece are fixed together by screws.

3. The filament support mounting structure for the ion source of a mass spectrometer according to claim 1, characterized in that: The positioning groove is opened along the horizontal direction on both sides of the source heating block.

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