An excimer lamp

Abstract

This utility model relates to the field of ultraviolet lamp technology and discloses an excimer lamp, including a shell, a sealing element, a lamp tube, a water pipe, and a water inlet pipe. The sealing element is installed at the top of the shell and has a connecting hole, a water inlet hole, and a water outlet hole. The connecting hole is located at the bottom of the sealing element and communicates with the water inlet hole and the water outlet hole respectively. The lamp tube is located inside the shell and includes an outer tube and an inner tube. The inner tube is coaxially arranged inside the outer tube, forming a sealed cavity between the inner tube and the outer tube. The water pipe passes through the inner tube, with its bottom end being a closed end. The top end of the water pipe is inserted into the connecting hole and communicates with the water outlet hole. The water inlet pipe is located inside the water pipe, with a gap between the bottom ends of the water inlet pipe and the bottom ends of the water pipe. The top end of the water inlet pipe extends out of the water pipe and is inserted into the water inlet hole. A gap exists between the outer side of the water inlet pipe and the inner side of the water pipe, forming a flow channel. This utility model can ensure the sealing of the excimer lamp shell and also help dissipate heat from the lamp tube.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet lamp technology, and in particular to an excimer lamp. Background Technology

[0002] Excimer lamps generate short-wave ultraviolet light (e.g., 222nm) by exciting discharge gases (such as a mixture of chlorine, krypton, and halogens) through a high-frequency, high-voltage electric field. Their core technology relies on dielectric barrier discharge (DBD), where the electrodes and discharge gas are isolated by a dielectric such as quartz, creating a non-contact discharge that extends lifespan and reduces electrode corrosion. Compared to low-pressure mercury lamps, excimer lamps do not contain harmful substances like mercury in their discharge tubes, thus having no negative environmental impact. They are widely used in industries such as medical, water treatment, environmental protection, chemical, and material surface treatment. When excimer lamps need to be immersed in liquids, such as for liquid purification / activation, they generally require a sealed housing to prevent liquid from seeping into the lamp. However, placing the lamp tube within a sealed housing can hinder heat dissipation during operation, and excessively high temperatures can affect the normal operation of the excimer lamp. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an excimer lamp that can both ensure the sealing of the inner shell and help the lamp tube dissipate heat.

[0004] To solve the above-mentioned technical problems, this utility model provides an excimer lamp, including a housing, a sealing element, a lamp tube, a water pipe, and a water inlet pipe. The bottom end of the housing is a closed end, and the top end of the housing is an open end. The sealing element is installed on the top end of the housing and has a connecting hole, a water inlet hole, and a water outlet hole. The connecting hole is located at the bottom of the sealing element and communicates with the water inlet hole and the water outlet hole respectively. The lamp tube is disposed inside the housing and includes an outer tube and an inner tube, with the inner tube coaxially arranged... The inner tube and the outer tube are connected to form a sealed cavity. The water pipe passes through the inner tube and is closed at the bottom. The top of the water pipe is inserted into the connection hole and communicates with the outlet hole. The inlet pipe is located inside the water pipe and there is a gap between the bottom of the inlet pipe and the bottom of the water pipe. The top of the inlet pipe extends out of the water pipe and is inserted into the inlet hole. There is a gap between the outer side of the inlet pipe and the inner side of the water pipe to form a flow channel.

[0005] As a preferred embodiment of the present invention, the excimer lamp further includes a first electrode and a second electrode, the first electrode and the second electrode being respectively disposed on the lamp tube, a safety distance being between the first electrode and the second electrode, the first electrode being connected to a first electrode lead, the second electrode being connected to a second electrode lead, and the sealing member being provided with a first outlet hole for the first electrode lead to pass through and a second outlet hole for the second electrode lead to pass through.

[0006] As a preferred embodiment of the present invention, the top end of the lamp tube is fitted with a first insulating sleeve, the bottom end of the lamp tube is fitted with a second insulating sleeve, and the top of the first insulating sleeve is provided with a first through hole for the first electrode lead to pass through, a second through hole for the second electrode lead to pass through, and a third through hole for the water pipe to pass through.

[0007] As a preferred embodiment of this utility model, the first insulating sleeve and the second insulating sleeve are respectively fixedly connected to the outer shell.

[0008] As a preferred embodiment of this utility model, the second insulating sleeve is provided with a connecting post extending into the inner tube, the top of the connecting post is provided with a connecting groove, and the bottom of the water pipe is provided with a positioning post that cooperates with the connecting groove.

[0009] As a preferred embodiment of this utility model, the first electrode and the second electrode are arranged opposite to each other. The first electrode is located on the outside of the outer tube, and the second electrode is located on the outside or inside of the inner tube, or the first electrode is located on the inside of the outer tube, and the second electrode is located on the inside of the inner tube.

[0010] As a preferred embodiment of this utility model, the water pipe includes a pipe body and a base that seals the bottom end of the pipe body. The top of the base is provided with a positioning hole, the bottom end of the water inlet pipe is inserted into the positioning hole, and there is a gap between the bottom end of the water inlet pipe and the bottom end of the positioning hole. The two sides of the positioning hole are respectively provided with connecting holes, which are respectively connected to the positioning hole and the bottom end of the pipe body.

[0011] As a preferred embodiment of this utility model, a first sealing groove is provided on the inner side of the connecting hole, and a first sealing ring is provided in the first sealing groove.

[0012] As a preferred embodiment of this utility model, the bottom of the sealing element is provided with an installation cylinder, which is sleeved on the top of the outer shell.

[0013] As a preferred embodiment of this utility model, the inner side of the mounting cylinder is provided with a second sealing groove, and a second sealing ring is provided in the second sealing groove.

[0014] This utility model provides an excimer lamp, which, compared with the prior art, has the following advantages: During operation, cooling water is delivered to the top of the inlet pipe through the inlet hole, then the cooling water is delivered along the inlet pipe, then from the bottom of the inlet pipe to the bottom of the water passage pipe, then along the flow channel, and finally from the top of the water passage pipe to the connection hole and discharged from the outlet hole; since the water passage pipe is located inside the inner pipe, the cooling water will cool the lamp tube during the flow channel, thereby helping the lamp tube to dissipate heat and ensuring the normal operation of the excimer lamp. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 yes Figure 2 A magnified view of a portion at point A;

[0018] Figure 4 yes Figure 2 A magnified view of part B;

[0019] Figure 5 This is another sectional view of the present invention;

[0020] Figure 6 yes Figure 5 A magnified view of a portion of point C;

[0021] Figure 7 This is a schematic diagram of the structure of the first electrode lead and the second electrode lead of this utility model extending to the outside;

[0022] Figure 8 This is an exploded structural diagram of the connection between the water pipe and the water inlet pipe of this utility model;

[0023] In the figure, 1 is the outer shell; 2 is the seal; 21 is the connecting hole; 211 is the first sealing groove; 212 is the first sealing ring; 22 is the water inlet; 23 is the water outlet; 24 is the first cable outlet; 25 is the second cable outlet; 26 is the mounting cylinder; 261 is the second sealing groove; 262 is the second sealing ring; 3 is the lamp tube; 31 is the outer tube; 32 is the inner tube; 33 is the sealing cavity; 4 is the water pipe; 41 is the positioning post; 42 is the tube body; 43 is the base; 431 is the positioning hole; 432 is the connecting hole; 5 is the water inlet pipe; 51 is the flow channel; 6 is the first electrode; 61 is the first electrode lead; 7 is the second electrode; 71 is the second electrode lead; 8 is the first insulating sleeve; 81 is the first through hole; 82 is the second through hole; 83 is the third through hole; 9 is the second insulating sleeve; 91 is the connecting post; and 911 is the connecting groove. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] like Figure 1-8 As shown, a preferred embodiment of the present invention provides an excimer lamp comprising a housing 1, a sealing member 2, a lamp tube 3, a water pipe 4, and a water inlet pipe 5. The housing 1 is made of a light-transmitting material, with a closed bottom and an open top. The sealing member 2 is installed on the top of the housing 1, sealing the top of the housing 1 to ensure the airtightness of the interior, allowing the housing 1 to be immersed in liquid. The sealing member 2 has a connecting hole 21, a water inlet hole 22, and a water outlet hole 23. The connecting hole 21 is located at the bottom of the sealing member 2 and communicates with the water inlet hole 22 and the water outlet hole 23, respectively. In this embodiment, the top of the water inlet hole 22 and the top of the water outlet hole 23 are respectively located on the top of the sealing member 2. The bottom of the water inlet hole 22 communicates with the top of the connecting hole 21, and the bottom of the water outlet hole 23 communicates with the top of the connecting hole 21. The top side of the hole 21 is connected. The lamp tube 3 is located inside the outer shell 1. The lamp tube 3 includes an outer tube 31 and an inner tube 32. The inner tube 32 is coaxially arranged inside the outer tube 31. A sealed cavity 33 is formed between the inner tube 32 and the outer tube 31. The sealed cavity 33 is filled with a dischargeable gas. The water pipe 4 passes through the inner tube 32. The bottom end of the water pipe 4 is a closed end. The top end of the water pipe 4 is inserted into the connecting hole 21 and communicates with the water outlet 23. The water inlet pipe 5 is located inside the water pipe 4. There is a gap between the bottom end of the water inlet pipe 5 and the bottom end of the water pipe 4. The top end of the water inlet pipe 5 extends out of the water pipe 4 and is inserted into the water inlet hole 22. At this time, the water inlet pipe 5 blocks the water inlet hole 22. There is a gap between the outer side of the water inlet pipe 5 and the inner side of the water pipe 4 to form a flow channel 51. Generally, the water inlet pipe 5 and the water pipe 4 are coaxially arranged.

[0027] The working principle of this embodiment is as follows: the water inlet 22 is connected to the cooling water source. During operation, the cooling water is transported to the top of the water inlet pipe 5 through the water inlet 22. Then, the cooling water is transported along the water inlet pipe 5. Next, the cooling water is transported from the bottom of the water inlet pipe 5 to the bottom of the water pipe 4 (between the bottom of the water inlet pipe 5 and the bottom of the water pipe 4). Subsequently, the cooling water is transported along the flow channel 51. Finally, the cooling water is transported from the top of the water pipe 4 to the connection hole 21 and discharged from the water outlet 23. Since the water pipe 4 is located inside the inner pipe 32, the cooling water will cool the lamp tube 3 during the flow of the flow channel 51, thereby helping the lamp tube 3 to dissipate heat and ensuring the normal operation of the excimer lamp.

[0028] For example, the excimer lamp also includes a first electrode 6 and a second electrode 7, which are respectively disposed on the lamp tube 3, with a safety distance between them. The first electrode 6 is connected to a first electrode lead 61, and the second electrode 7 is connected to a second electrode lead 71. The sealing member 2 is provided with a first outlet hole 24 for the first electrode lead 61 to pass through and a second outlet hole 25 for the second electrode lead 71 to pass through. In this embodiment, the first outlet hole 24 and the second outlet hole 25 are respectively disposed on the top of the sealing member 2. The first electrode lead 61 extends from the top of the housing 1 and passes through the first outlet hole 24 to the outside, and the second electrode lead 71 extends from the top of the housing 1 and passes through the second outlet hole 25 to the outside, so that the first electrode 6 and the second electrode 7 are respectively connected to the power supply.

[0029] For example, the top end of the lamp tube 3 is fitted with a first insulating sleeve 8, and the bottom end of the lamp tube 3 is fitted with a second insulating sleeve 9. The top of the first insulating sleeve 8 is provided with a first through hole 81 for the first electrode lead 61 to pass through, a second through hole 82 for the second electrode lead 71 to pass through, and a third through hole 83 for the water pipe 4 to pass through. The first electrode lead 61 passes through the first through hole 81 and extends into the first outlet hole 24, the second electrode lead 71 passes through the second through hole 82 and extends into the second outlet hole 25, and the water pipe 4 passes through the third through hole 83 and is inserted into the connection hole 21. The provision of the first insulating sleeve 8 and the second insulating sleeve 9 can effectively prevent creepage between the first electrode 6 and the second electrode 7, ensuring the safety of use.

[0030] For example, the first insulating sleeve 8 and the second insulating sleeve 9 are respectively fixedly connected to the outer shell 1. For example, the first insulating sleeve 8 and the second insulating sleeve 9 are respectively tightly embedded in the outer shell 1, so that the first insulating sleeve 8 and the second insulating sleeve 9 are fixedly disposed relative to the outer shell 1. Since the first insulating sleeve 8 and the second insulating sleeve 9 are respectively sleeved on the lamp tube 3, the lamp tube 3 can be fixed to prevent it from shifting during use.

[0031] For example, the second insulating sleeve 9 is provided with a connecting post 91 that extends into the inner tube 32. The top of the connecting post 91 is provided with a connecting groove 911, and the bottom of the water pipe 4 is provided with a positioning post 41 that cooperates with the connecting groove 911, so as to position and install the water pipe 4.

[0032] It is understood that the specific positions of the first electrode 6 and the second electrode 7 on the lamp tube 3 can vary, as long as the working principle of the excimer lamp is met. For example, the first electrode 6 and the second electrode 7 can be arranged opposite each other, with the first electrode 6 located on the outside of the outer tube 31 and the second electrode 7 located on the outside or inside of the inner tube 32, or the first electrode 6 located on the inside of the outer tube 31 and the second electrode 7 located on the inside of the inner tube 32, so that the lamp tube 3 can emit light evenly in all directions. It is understood that when the first electrode 6 is located on the inside of the outer tube 31 or the second electrode 7 is located on the outside of the inner tube 32, the lead wire of the first electrode 6 or the lead wire of the second electrode 7 extends out of the sealed cavity 33 in a sealed manner. In addition, in other embodiments, the first electrode 6 and the second electrode 7 can be respectively located on the inside of the inner tube 32, with the first electrode 6 located at one end of the inner tube 32 and the second electrode 7 located at the other end of the inner tube 32.

[0033] For example, the water pipe 4 includes a pipe body 42 and a base 43 that seals the bottom end of the pipe body. In this embodiment, the base 43 is sleeved on the bottom end of the pipe body 42. The top of the base 43 is provided with a positioning hole 431. The bottom end of the water inlet pipe 5 is inserted into the positioning hole 431. The cooperation between the bottom end of the water inlet pipe 5 and the positioning hole 431 facilitates the positioning and installation of the water inlet pipe 5. There is a gap between the bottom end of the water inlet pipe 5 and the bottom end of the positioning hole 431. In this embodiment, there are limiting platforms on both sides of the positioning hole 431. The top of the limiting platform abuts against the bottom end of the water inlet pipe 5 to prevent the water inlet pipe 5 from being inserted too far. There are connecting holes 432 on both sides of the positioning hole 431. The connecting holes 432 are connected to the positioning hole 431 and the bottom end of the pipe body 42, respectively. Cooling water flows out from the bottom end of the water inlet pipe 5 and enters the positioning hole 431 to form a force. Then it is transported to the flow channel 51 through the connecting hole 432, which helps the cooling water to flow out smoothly, thereby ensuring the heat dissipation effect.

[0034] For example, a first sealing groove 211 is provided on the inner side of the connection hole 21, and a first sealing ring 212 is provided in the first sealing groove 211 to ensure the sealing between the connection hole 21 and the water pipe 4.

[0035] For example, the bottom of the seal 2 is provided with an installation cylinder 26. Generally, the installation cylinder 26 is integrally formed with the seal 2 and is sleeved on the top of the outer shell 1 to facilitate the installation of the seal 2.

[0036] For example, the inner side of the mounting cylinder 26 is provided with a second sealing groove 261, and a second sealing ring 262 is provided in the second sealing groove 261 to ensure the sealing between the mounting cylinder 26 and the outer shell 1.

[0037] The above are merely preferred embodiments of this 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 this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. An excimer lamp, characterized in that: The device includes a housing, a seal, a lamp tube, a water pipe, and a water inlet pipe. The bottom end of the housing is closed, and the top end is open. The seal is installed on the top end of the housing and has a connection hole, a water inlet hole, and a water outlet hole. The connection hole is located at the bottom of the seal and communicates with the water inlet hole and the water outlet hole, respectively. The lamp tube is located inside the housing and includes an outer tube and an inner tube. The inner tube is coaxially arranged inside the outer tube, and a sealed cavity is formed between the inner tube and the outer tube. The water pipe passes through the inner tube and has a closed bottom end. The top end of the water pipe is inserted into the connection hole and communicates with the water outlet hole. The water inlet pipe is located inside the water pipe and there is a gap between the bottom end of the water inlet pipe and the bottom end of the water pipe. The top end of the water inlet pipe extends out of the water pipe and is inserted into the water inlet hole. There is a gap between the outer side of the water inlet pipe and the inner side of the water pipe to form a flow channel.

2. The excimer lamp according to claim 1, characterized in that: It also includes a first electrode and a second electrode, which are respectively disposed on the lamp tube. There is a safety distance between the first electrode and the second electrode. The first electrode is connected to a first electrode lead, and the second electrode is connected to a second electrode lead. The sealing member is provided with a first outlet hole for the first electrode lead to pass through and a second outlet hole for the second electrode lead to pass through.

3. The excimer lamp according to claim 2, characterized in that: The top end of the lamp tube is fitted with a first insulating sleeve, and the bottom end of the lamp tube is fitted with a second insulating sleeve. The top of the first insulating sleeve is provided with a first through hole for the first electrode lead to pass through, a second through hole for the second electrode lead to pass through, and a third through hole for the water pipe to pass through.

4. The excimer lamp according to claim 3, characterized in that: The first insulating sleeve and the second insulating sleeve are respectively fixedly connected to the outer shell.

5. The excimer lamp according to claim 3, characterized in that: The second insulating sleeve is provided with a connecting post that extends into the inner tube. The top of the connecting post is provided with a connecting groove, and the bottom of the water pipe is provided with a positioning post that mates with the connecting groove.

6. The excimer lamp according to claim 2, characterized in that: The first electrode and the second electrode are disposed opposite to each other. The first electrode is disposed on the outside of the outer tube, and the second electrode is disposed on the outside or inside of the inner tube, or the first electrode is disposed on the inside of the outer tube, and the second electrode is disposed on the inside of the inner tube.

7. The excimer lamp according to claim 1, characterized in that: The water pipe includes a pipe body and a base that seals the bottom end of the pipe body. The top of the base is provided with a positioning hole. The bottom end of the water inlet pipe is inserted into the positioning hole, and there is a gap between the bottom end of the water inlet pipe and the bottom end of the positioning hole. There are connecting holes on both sides of the positioning hole, and the connecting holes are respectively connected to the positioning hole and the bottom end of the pipe body.

8. The excimer lamp according to claim 1, characterized in that: The inner side of the connection hole is provided with a first sealing groove, and a first sealing ring is provided in the first sealing groove.

9. The excimer lamp according to claim 1, characterized in that: The bottom of the seal is provided with a mounting cylinder, which is sleeved on the top of the outer shell.

10. The excimer lamp according to claim 9, characterized in that: The inner side of the mounting cylinder is provided with a second sealing groove, and a second sealing ring is provided in the second sealing groove.

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