A fixing structure for the internal electrode of an excimer lamp

Abstract

This utility model relates to the field of excimer lamp technology and discloses a fixing structure for the inner electrode of an excimer lamp, including a lamp tube, a support tube, an inner electrode, and a fixing assembly. The support tube is coaxially disposed inside the lamp tube, and the inner electrode is sleeved on the support tube. The fixing assembly includes a mounting cylinder, a connecting cylinder, and a connecting rod. The mounting cylinder is sleeved on the inner electrode, and the connecting cylinder is fixed to the side of the mounting cylinder. Multiple connecting cylinders are provided and arranged along the outer periphery of the mounting cylinder. A connecting rod is inserted into the connecting cylinder, one end of the connecting rod extends out of the connecting cylinder and is fused to the inner side of the lamp tube, and the other end of the connecting rod has a gap with the outer side of the support tube. In this utility model, the lamp tube is supported and fixed by the fixing assembly to the inner electrode and the support tube. Since there is a gap between the end of the connecting rod away from the lamp tube and the mounting cylinder, when the connecting rod expands and contracts due to temperature changes, it will not affect the support tube, thereby preventing the support tube and the lamp tube from cracking due to the thermal expansion and contraction of the connecting rod.

Description

Technical Field

[0001] This utility model relates to the field of excimer lamp technology, and in particular to a fixing structure for the internal electrode of an excimer lamp. Background Technology

[0002] Excimer lamps generate short-wave ultraviolet light (e.g., 172nm) by exciting discharge gases (such as a mixture of xenon, krypton, and halogen gases) through a high-frequency, high-voltage electric field. Their core technology relies on dielectric barrier discharge (DBD), where the electrodes and discharge gases are isolated by a dielectric such as quartz, creating a non-contact discharge that extends lifespan and reduces electrode corrosion. Traditional excimer lamps typically consist of an inner electrode inside the lamp tube and an outer electrode outside. The inner electrode is connected to a high-frequency, high-voltage power supply, while the outer electrode is grounded, forming a stable discharge electric field. Because some excimer lamps have relatively long inner electrodes, a support tube and connecting rod are installed inside the lamp tube to support and fix them. The connecting rod is fused to the outer side of the support tube and the inner side of the lamp tube to position the support tube, and the inner electrode is placed on the support tube for support and fixation. However, because the fixing components are directly fused to the support tube and the lamp tube, the lamp tube and support tube are prone to breakage due to the thermal expansion and contraction of the connecting rod during operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a fixing structure for the inner electrode of an excimer lamp that can prevent the lamp tube and support tube from breaking due to thermal expansion and contraction of the connecting rod.

[0004] To solve the above-mentioned technical problems, this utility model provides a fixing structure for the inner electrode of an excimer lamp, including a lamp tube, a support tube, an inner electrode, and a fixing assembly. The support tube is coaxially disposed inside the lamp tube, and the inner electrode is sleeved on the support tube. The fixing assembly includes a mounting cylinder, a connecting cylinder, and a connecting rod. The mounting cylinder is sleeved on the inner electrode, and the connecting cylinder is fixed to the side of the mounting cylinder. Multiple connecting cylinders are provided and arranged along the outer periphery of the mounting cylinder. The connecting rod is inserted into the connecting cylinder. One end of the connecting rod extends out of the connecting cylinder and is fused to the inner side of the lamp tube. There is a gap between the other end of the connecting rod and the outer side of the support tube.

[0005] As a preferred embodiment of this utility model, multiple fixing components are provided, and the multiple fixing components are arranged at intervals along the axial direction of the lamp tube.

[0006] As a preferred embodiment of this utility model, the connecting cylinders of two adjacent fixing components are staggered.

[0007] As a preferred embodiment of this utility model, the cross-section of the mounting cylinder is annular, and a plurality of the connecting cylinders are evenly distributed around the axis of the mounting cylinder.

[0008] As a preferred embodiment of the present invention, the inner electrode is spirally wound around the support tube along the axial direction of the support tube.

[0009] As a preferred embodiment of this utility model, the connecting rod and the connecting cylinder are fitted with a clearance.

[0010] As a preferred embodiment of this utility model, the connecting rod and the lamp tube are made of the same material.

[0011] As a preferred embodiment of this utility model, the connecting rod is made of glass.

[0012] This utility model discloses a fixing structure for the inner electrode of an excimer lamp. Compared with the prior art, its advantages are as follows: In this utility model, one end of the connecting rod is fused to the inner side of the lamp tube, and the connecting rod is inserted into the connecting cylinder. Multiple connecting cylinders are fixed to the side of the mounting cylinder along the outer periphery of the mounting cylinder, thereby achieving relative fixation between the fixing component and the lamp tube. The mounting cylinder is sleeved on the inner electrode, and the inner electrode is sleeved on the support tube, thereby achieving relative fixation of the mounting cylinder, the inner electrode, and the support tube. The mounting cylinder can support and fix the inner electrode and the support tube, preventing deformation of the inner electrode. Since there is a gap between the end of the connecting rod away from the lamp tube and the mounting cylinder, when the connecting rod undergoes thermal expansion and contraction, it will not affect the support tube, thereby preventing the support tube and the lamp tube from cracking due to thermal expansion and contraction of the connecting rod. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 yes Figure 1 Internal structure diagram;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] In the figure, lamp tube 1; support tube 2; inner electrode 3; fixing component 4; mounting cylinder 41; connecting cylinder 42; connecting rod 43. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] like Figure 1-3 As shown, a preferred embodiment of the present invention provides a fixing structure for the inner electrode 3 of an excimer lamp, comprising a lamp tube 1, a support tube 2, an inner electrode 3, and a fixing assembly 4. The support tube 2 is coaxially disposed inside the lamp tube 1, and the inner electrode 3 is sleeved on the support tube 2. The fixing assembly 4 includes a mounting cylinder 41, a connecting cylinder 42, and a connecting rod 43. The mounting cylinder 41 is sleeved on the inner electrode 3, and the connecting cylinder 42 is fixed to the side of the mounting cylinder 41. Generally, the connecting cylinder 42 and the mounting cylinder 41 are made of glass and are fused together. Multiple connecting cylinders 42 are provided and arranged along the outer periphery of the mounting cylinder 41. A connecting rod 43 is inserted into the connecting cylinder 42. Generally, the end of the connecting cylinder 42 near the mounting cylinder 41 is a closed end, that is, the inner hole of the connecting cylinder 42 is not connected to the inner hole of the mounting cylinder 41, so that the connecting rod 43 can be inserted into the connecting cylinder 42. One end of the connecting rod 43 extends out of the connecting cylinder 42 and is fused to the inner side of the lamp tube 1. There is a gap between the other end of the connecting rod 43 and the outer side of the support tube 2.

[0020] The assembly process in this embodiment is as follows: Before assembly, the fixing component 4 is assembled in advance, that is, the connecting cylinder 42 is first fixed to the side of the mounting cylinder 41, and then the connecting rod 43 is inserted into the connecting cylinder 42, at which time one end of the connecting rod 43 extends out of the connecting cylinder 42; during assembly, the lamp tube 1 is first positioned and fixed, and then the fixing component 4 is positioned and placed inside the lamp tube 1, at which time the end of the connecting rod 43 extending out of the connecting cylinder 42 abuts against the inner side of the lamp tube 1; then the end of the connecting rod 43 extending out of the connecting cylinder 42 is fused to the inner side of the lamp tube 1. At this point, since the lamp tube 1 is fixed, i.e., the end of the connecting rod 43 near the lamp tube 1 is fixed, the connecting rod 43 will shrink during welding, resulting in a gap between the end of the connecting rod 43 near the mounting cylinder 41 and the outer side of the mounting cylinder 41. Finally, the support tube 2 with the inner electrode 3 is passed through the mounting cylinder 41, thus completing the assembly of this fixing structure. At this time, the support tube 2 with the inner electrode 3 is connected to the lamp tube 1 through the fixing component 4, realizing the relative fixation of the inner electrode 3, the support tube 2, the fixing component 4, and the lamp tube 1. It can be understood that... Figure 1This is just a structural diagram of the fixed structure. After the excimer lamp using this fixed structure is assembled, a closed cavity will be formed inside the lamp tube 1. This cavity is filled with excimer gas, and one end of the inner electrode 3 will extend out of the lamp tube 1 through the electrode lead so as to be connected to the power supply.

[0021] In this invention, one end of the connecting rod 43 is fused to the inner side of the lamp tube 1, and the connecting rod 43 is inserted into the connecting cylinder 42. Multiple connecting cylinders 42 are fixed to the side of the mounting cylinder 41 along the outer periphery of the mounting cylinder 41, thereby achieving relative fixation between the fixing component 4 and the lamp tube 1. The mounting cylinder 41 is sleeved on the inner electrode 3, and the inner electrode 3 is sleeved on the support tube 2, thereby achieving relative fixation between the mounting cylinder 41, the inner electrode 3, and the support tube 2. The mounting cylinder 41 can support and fix the inner electrode 3 and the support tube 2, preventing the inner electrode 3 from deforming. Since there is a gap between the end of the connecting rod 43 away from the lamp tube 1 and the mounting cylinder 41, when the connecting rod 43 undergoes thermal expansion and contraction, it will not affect the support tube 2, thereby preventing the support tube 2 and the lamp tube 1 from cracking due to the thermal expansion and contraction of the connecting rod 43.

[0022] For example, multiple fixing components 4 are provided, and the multiple fixing components 4 are arranged at intervals along the axial direction of the lamp tube 1, and the multiple fixing components 4 uniformly support and fix the support tube 2 and the inner electrode 3.

[0023] For example, the staggered arrangement of the connecting cylinders 42 of two adjacent fixing components 4 helps to ensure uniform stress on the lamp tube 1.

[0024] For example, the cross-section of the mounting cylinder 41 is annular, and multiple connecting cylinders 42 are evenly distributed around the axis of the mounting cylinder 41, which helps to ensure that the mounting cylinder 41 is subjected to uniform force.

[0025] For example, the inner electrode 3 is spirally wound around the support tube 2 along the axial direction of the support tube 2, so that the inner electrode 3 can be sleeved on the support tube 2. In addition, the inner electrode 3 can be a metal mesh sleeved on the support tube 2.

[0026] For example, the connecting rod 43 and the connecting cylinder 42 are fitted with a clearance. When the connecting rod 43 is fused with the lamp tube 1, the connecting rod 43 will undergo a slight radial expansion. The assembly clearance between the connecting plate and the connecting cylinder 42 allows the expansion of the connecting rod 43 and prevents the connecting rod 43 and the connecting cylinder 42 from breaking.

[0027] For example, the connecting rod 43 and the lamp tube 1 are made of the same material so that they can be fused together. Generally, the connecting rod 43 and the lamp tube 1 are made of glass.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fixing structure for the internal electrode of an excimer lamp, characterized in that: The device includes a lamp tube, a support tube, an inner electrode, and a fixing assembly. The support tube is coaxially disposed inside the lamp tube, and the inner electrode is sleeved on the support tube. The fixing assembly includes a mounting cylinder, a connecting cylinder, and a connecting rod. The mounting cylinder is sleeved on the inner electrode, and the connecting cylinder is fixed to the side of the mounting cylinder. Multiple connecting cylinders are provided and arranged along the outer periphery of the mounting cylinder. The connecting rod is inserted into the connecting cylinder. One end of the connecting rod extends out of the connecting cylinder and is fused to the inner side of the lamp tube. The other end of the connecting rod has a gap with the outer side of the support tube.

2. The fixing structure of the internal electrode of the excimer lamp according to claim 1, characterized in that: The fixing components are provided in multiple ways, and the multiple fixing components are arranged at intervals along the axial direction of the lamp tube.

3. The fixing structure of the internal electrode of the excimer lamp according to claim 2, characterized in that: The connecting cylinders of two adjacent fixing components are misaligned.

4. The fixing structure of the internal electrode of the excimer lamp according to claim 1, characterized in that: The mounting cylinder has an annular cross-section, and multiple connecting cylinders are evenly distributed around the axis of the mounting cylinder.

5. The fixing structure of the internal electrode of the excimer lamp according to claim 1, characterized in that: The inner electrode is spirally wound around the support tube along the axial direction of the support tube.

6. The fixing structure of the internal electrode of the excimer lamp according to claim 1, characterized in that: The connecting rod and the connecting cylinder are fitted with a clearance.

7. The fixing structure of the internal electrode of the excimer lamp according to claim 1, characterized in that: The connecting rod and the lamp tube are made of the same material.

8. The fixing structure of the internal electrode of the excimer lamp according to claim 7, characterized in that: The connecting rod is made of glass.

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