Ultraviolet lamp driving electrode and PID sensor

Abstract

According to the ultraviolet lamp driving electrode and the PID sensor provided by the utility model, the two mutually insulated conducting rings and the electrode bonding pads electrically connected with the conducting rings are arranged on the insulating body together, so that the ultraviolet lamp driving electrode is simple and small in structure, the overall size of the ultraviolet lamp driving electrode can be reduced, and the cost can be reduced. The structure of the PID sensor is more compact, and the processing precision of the driving electrode of the ultraviolet lamp can be effectively ensured. The mounting hole of the ultraviolet lamp driving electrode of the PID sensor provided by the utility model is in sliding fit with the ultraviolet lamp, an assembly type structure commonly used by the conventional ultraviolet lamp driving electrode is abandoned, the assembly process is simple, the material cost and the assembly working hours can be saved, the comprehensive cost is effectively reduced, and the PID sensor is suitable for automatic production.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas sensor technical field, especially to a kind of ultraviolet lamp driving electrode and PID sensor. BACKGROUND

[0002] PID (Photo Ionization Detectors, photo ionization detector) sensor is as the professional sensor of environmental protection and industrial safety field detection VOC (Volatile Organic Compounds, volatile organic compounds), with small volume, response speed is fast, precision is high, can be continuously measured with the advantages such as, can detect from extremely low concentration 1ppb to higher concentration 10000ppm VOC and other toxic and harmful gases. At present, PID sensor has been widely used in various organic chemical detection, especially in disaster area accident leakage detection, accident area confirmation and leakage confirmation and so on, plays an important role.

[0003] But the high cost of PID sensor, limit its popularization in many fields, how to reduce the cost of PID sensor, make it be applied in more fields, it has important significance to the development of national economy. For PID sensor, reasonable ultraviolet lamp driving electrode structure design, simple installation and maintenance mode, are directly related to the performance and cost of sensor. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned shortcomings of prior art, the purpose of the utility model is to provide a kind of ultraviolet lamp driving electrode and PID sensor, can guarantee the excellent performance of PID sensor, also make it have more simple installation and maintenance mode, and then make the manufacturing cost of PID sensor significantly reduced.

[0005] To achieve the above object and other related purposes, the utility model provides a kind of ultraviolet lamp driving electrode, and the PID sensor structure includes: insulating body, mounting hole that is penetrated through the insulating body, first conductive ring, second conductive ring, first electrode pad attached to the upper surface of the insulating body and second electrode pad attached to the lower surface of the insulating body;Wherein,

[0006] The cross-sectional dimension of the first conductive ring and the second conductive ring is adapted to the hole diameter of the mounting hole, and the first conductive ring and the second conductive ring are attached to the inner wall of the mounting hole with interval;

[0007] The first conductive ring is connected with the first electrode pad by the first circuit trace attached on the insulating body;

[0008] The second conductive ring is connected with the second electrode pad by the second circuit trace attached on the insulating body.

[0009] One of the first electrode pad and the second electrode pad is used to connect the ground end of the high-voltage drive circuit, and the other is used to connect the high-voltage output end of the high-voltage drive circuit.

[0010] Optionally, the height of the first conductive ring is 0.5mm-5mm, the height of the second conductive ring is 0.5mm-5mm, the distance between the first conductive ring and the second conductive ring is 1mm-10mm, and the height of the mounting hole is 3mm-50mm.

[0011] Further, the height of the first conductive ring and the second conductive ring is the same.

[0012] Optionally, the first conductive ring is attached to the inner wall of the mounting hole and extends from the upper end of the mounting hole to the preset width of the upper surface of the insulating body, and the second conductive ring is attached to the inner wall of the mounting hole and extends from the lower end of the mounting hole to the preset width of the lower surface of the insulating body.

[0013] Optionally, the ultraviolet lamp driving electrode is prepared based on a PCB process.

[0014] Optionally, the material of the insulating body is FR-4 or CEM or polyimide.

[0015] Optionally, the cross-sectional shape of the mounting hole is circular.

[0016] Further, the cross-sectional diameter of the mounting hole is 4mm-20mm.

[0017] The utility model also provides a kind of PID sensor, the PID sensor includes ultraviolet lamp and the ultraviolet lamp driving electrode described in any one of the above;The ultraviolet lamp is slidably fitted and installed in the mounting hole of the ultraviolet lamp driving electrode.

[0018] Optionally, the distance between the lamp tube of the ultraviolet lamp and the first conductive ring and the second conductive ring of the ultraviolet lamp driving electrode is 0.01mm-1mm.

[0019] As described above, the ultraviolet lamp driving electrode of the utility model is arranged on the insulating body by two mutually insulated conductive rings and electrode pad electrically connected with the conductive ring, which is simple and small in structure, conducive to reducing the overall size of the ultraviolet lamp driving electrode, makes the structure of PID sensor more compact, and can effectively ensure the machining precision of the ultraviolet lamp driving electrode. The mounting hole of the ultraviolet lamp driving electrode of the utility model can be slidably fitted and installed with the ultraviolet lamp of the PID sensor, abandoning the assembly type structure commonly used by the ultraviolet lamp driving electrode in the past, the assembly process is simple, can save material cost and assembly time, effectively reduces comprehensive cost, suitable for automatic production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figures 1-3 Schematic diagrams showing various angles of the ultraviolet lamp driving electrode of the present utility model.

[0021] Figure 4 Schematic diagram showing the assembly structure of the ultraviolet lamp driving electrode and the ultraviolet lamp in the PID sensor of the present utility model.

[0022] Figure 5 Schematic diagram showing the ultraviolet lamp in the PID sensor of the present utility model.

[0023] DESCRIPTION OF REFERENCE NUMERALS

[0024] 1 Insulating body

[0025] 111 First conductive ring

[0026] 112 Second conductive ring

[0027] 121 First conductive part

[0028] 122 Second conductive part

[0029] 131 First circuit trace

[0030] 132 Second circuit trace

[0031] 141 First electrode pad

[0032] 142 Second electrode pad

[0033] 15 Mounting hole

[0034] 2 Ultraviolet lamp

[0035] 21 Lamp tube

[0036] 22 Output window DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0038] Please refer to Figures 1-5It is to be understood that the structure, proportion, size and the like shown in the drawings of the present application are only used to illustrate the content disclosed in the present application, to be understood and read by those skilled in the art, and are not used to limit the implementation of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose of the present application, should still fall within the scope of the technical content disclosed in the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" in the present application are only used for clear understanding of the description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the scope of the present application without substantial change of technical content.

[0039] The present embodiment provides a kind of ultraviolet lamp driving electrode, as shown in Figures 1-3 The ultraviolet lamp driving electrode includes: insulating body 1, mounting hole 15 through the insulating body 1 up and down, first conductive ring 111, second conductive ring 112, first electrode pad 141 attached to the upper surface of the insulating body 1 and second electrode pad 142 attached to the lower surface of the insulating body 1;Wherein,

[0040] The cross-sectional dimension of the first conductive ring 111 and the second conductive ring 112 is adapted to the hole diameter of the mounting hole 15, and the first conductive ring 111 and the second conductive ring 112 are attached to the inner wall of the mounting hole 15 with interval;

[0041] The first conductive ring 111 is connected with the first electrode pad 141 by the first circuit trace 131 attached on the insulating body 1;

[0042] The second conductive ring 112 is connected with the second electrode pad 142 by the second circuit trace 132 attached on the insulating body 1;

[0043] One of the first electrode pad 141 and the second electrode pad 142 is used to connect the ground end of high-voltage driving circuit, and the other is used to connect the high-voltage output end of high-voltage driving circuit.

[0044] The ultraviolet lamp driving electrode of the embodiment is arranged on the insulating body by two mutually insulated conductive rings and electrode pads electrically connected with the conductive rings, which is simple and compact, is conducive to reducing the overall size of the ultraviolet lamp driving electrode, makes the structure of the PID sensor more compact, and can effectively ensure the machining precision of the ultraviolet lamp driving electrode. The mounting hole of the ultraviolet lamp driving electrode of the embodiment can be mounted in sliding fit with the ultraviolet lamp of the PID sensor, abandoning the assembly type structure commonly used by the ultraviolet lamp driving electrode in the past, and the assembly process is simple, which can save material cost and assembly time, effectively reduce the comprehensive cost, and is suitable for automatic production.

[0045] As shown in Figure 4 and Figure 5 , the mounting hole 15 of the ultraviolet lamp driving electrode is used to assemble the ultraviolet lamp 2 of the PID sensor, so that the ultraviolet lamp 2 is fixed in the PID sensor, and when the PID sensor works, the ultraviolet lamp driving electrode guides the high-voltage alternating current input by the external circuit into the ultraviolet lamp driving electrode through the first electrode pad 141 and the second electrode pad 142, and converts the high-voltage alternating current input by the external circuit into an alternating electric field that can excite the ultraviolet lamp 2 to emit light by the first conductive ring 111 and the second conductive ring 112, so that the ultraviolet lamp 2 is excited to emit light and outputs from the output window 22.

[0046] One of the first electrode pad 141 and the second electrode pad 142 is used to connect the ground end of the high-voltage driving circuit, and the other is used to connect the high-voltage output end of the high-voltage driving circuit. As an example, the first electrode pad 141 is connected with the ground end of the high-voltage driving circuit, and the second electrode pad 142 is connected with the high-voltage output end of the high-voltage driving circuit, or the second electrode pad 142 is connected with the ground end of the high-voltage driving circuit, and the first electrode pad 141 is connected with the high-voltage output end of the high-voltage driving circuit. The actual connection relationship can be set according to the overall structure of the PID sensor, which is not limited here.

[0047] As an example, as shown in Figure 1 and Figure 2 , the first conductive ring 111 is attached to the inner wall of the mounting hole 15 and extends from the upper end of the mounting hole 15 to the upper surface of the insulating body 1 by a predetermined width; the second conductive ring 112 is attached to the inner wall of the mounting hole 15 and extends from the lower end of the mounting hole 15 to the lower surface of the insulating body 1 by a predetermined width. Specifically, as shown in Figure 1 and Figure 2As shown, the first conductive ring 111 extends from the upper end of the mounting hole 15 to the upper surface of the insulating body 1 by a predetermined width to form a first conductive part 121, and the second conductive ring 112 extends from the lower end of the mounting hole 15 to the lower surface of the insulating body 1 by a predetermined width to form a second conductive part 122. The first conductive part 121 and the second conductive part 122 extending out can enhance the electrical connection between the first conductive ring 111 and the second conductive ring 112 and the external high-voltage drive circuit, reduce the on-resistance, and enable the external high-voltage drive circuit to uniformly drive the first conductive ring 111 and the second conductive ring 112. Meanwhile, the first conductive part 121 and the second conductive part 122 extending out can help improve the structural stability, reduce the deformation of the first conductive ring 111 and the second conductive ring 112 caused by mechanical stress or thermal expansion, and improve the reliability of the ultraviolet lamp driving electrode.

[0048] As shown in Figure 4 The mounting hole 15 is adapted to the cross-sectional shape of the lamp tube 21 in the ultraviolet lamp 2 to enable the lamp tube 21 in the ultraviolet lamp 2 to be slidingly fitted in the mounting hole 15 of the ultraviolet lamp driving electrode. Based on the uniformity of light emission, ease of integration, thermal management, structural stability, and manufacturing convenience, the mounting hole 15 is preferably circular in cross-sectional shape.

[0049] Further, the diameter of the mounting hole 15 can be 4mm to 20mm, which can be set according to the size of the ultraviolet lamp 2 to be assembled, and is not limited here.

[0050] To adapt to different sizes of the ultraviolet lamp 2, as an example, the height of the first conductive ring 111 is 0.5mm to 5mm, the height of the second conductive ring 112 is 0.5mm to 5mm, the distance between the first conductive ring 111 and the second conductive ring 112 is 1mm to 10mm, and the height of the mounting hole 15 is 3mm to 50mm. The above specific dimensions can be set according to design requirements, and are not limited here. Preferably, in the present embodiment, the height of the first conductive ring 111 and the second conductive ring 112 is the same. When the conductive rings need to be maintained or replaced, the same height design can ensure the consistency of spare parts, and because the same tools and molds can be used to manufacture the first conductive ring 111 and the second conductive ring 112, the manufacturing process is simplified. In addition, the same height of the first conductive ring 111 and the second conductive ring 112 can help maintain consistent service life and synchronize maintenance cycles.

[0051] As an example, the ultraviolet lamp driving electrode can be prepared based on a PCB (Printed Circuit Board) process, the first conductive ring 111, the second conductive ring 112, the first circuit trace 131, the second circuit trace 132, the first electrode pad 141 and the second electrode pad 142 and the ultraviolet lamp driving electrode integrated with the insulating body 1 are beneficial to reduce the size of the ultraviolet lamp driving electrode, make the structure more compact, and effectively ensure the processing precision. The manufacturing process of the ultraviolet lamp driving electrode is not limited here.

[0052] The material of the insulating body 1 can be an insulating material forming a PCB substrate, which can be FR-4 (glass fiber reinforced epoxy resin composite) or CEM (composite epoxy material) or polyimide, etc. commonly used to reduce costs, and the material of the insulating body 1 is not limited here.

[0053] In addition, the overall external structure of the insulating body 1 can be set according to the assembly structure of the PID sensor, which is not limited here.

[0054] The embodiment also provides a PID sensor, as shown in the accompanying drawings, Figure 4 The PID sensor includes an ultraviolet lamp 2 and the ultraviolet lamp driving electrode in the above embodiment; and the ultraviolet lamp 2 is slidingly fitted and installed in the mounting hole 15 of the ultraviolet lamp driving electrode.

[0055] The mounting hole of the ultraviolet lamp driving electrode of the PID sensor of the embodiment is slidingly fitted and installed with the ultraviolet lamp, which abandons the assembly structure commonly used by the ultraviolet lamp driving electrode in the prior art, has a simple assembly process, can save material cost and assembly time, effectively reduces the comprehensive cost, and is suitable for automatic production.

[0056] Specifically, as shown in the accompanying drawings, Figure 4 and Figure 5 The ultraviolet lamp 2 includes a lamp tube 21 and an output window 22, the straight wall part of the lamp tube 21 is slidingly fitted and installed in the mounting hole 15 of the ultraviolet lamp driving electrode, and the sliding fitting assembly mode allows the flexibility of the structure, that is, the cooperation between the ultraviolet lamp driving electrode and the ultraviolet lamp 2 allows certain relative movement, but does not allow the ultraviolet lamp 2 to completely separate or excessively loosen.

[0057] In order to facilitate the electric field energy applied by the conductive ring 11 to be introduced into the inside of the lamp tube 21 of the ultraviolet lamp 2 efficiently, the distance between the lamp tube 21 of the ultraviolet lamp 2 and the first conductive ring 111 and the second conductive ring 112 of the ultraviolet lamp driving electrode is 0.01mm-1mm, which can be set according to the actual applied voltage, and is not limited here.

[0058] In summary, the ultraviolet lamp driving electrode provided by the utility model is arranged on the insulating body by two mutually insulated conductive rings and the electrode pad electrically connected with the conductive rings, which is simple and small in structure, is conducive to reducing the overall size of the ultraviolet lamp driving electrode, makes the PID sensor structure more compact, and can effectively ensure the machining precision of the ultraviolet lamp driving electrode. The mounting hole of the ultraviolet lamp driving electrode of the PID sensor is installed in sliding fit with the ultraviolet lamp, which abandons the assembly type structure commonly used by the ultraviolet lamp driving electrode in the prior art, is simple in assembly process, can save material cost and assembly time, effectively reduces the comprehensive cost, and is suitable for automatic production. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0059] The above embodiments only exemplarily illustrate the principle and effect of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. An ultraviolet lamp drive electrode, characterized by, The ultraviolet lamp driving electrode comprises: an insulating body, a mounting hole penetrating through the insulating body from top to bottom, a first conductive ring, a second conductive ring, a first electrode pad attached to the upper surface of the insulating body, and a second electrode pad attached to the lower surface of the insulating body; wherein, The cross-sectional dimension of the first conductive ring and the second conductive ring is adapted to the hole diameter of the mounting hole, and the first conductive ring and the second conductive ring are attached to the inner wall of the mounting hole at intervals; The first conductive ring is connected with the first electrode pad through the first circuit trace attached to the insulating body; The second conductive ring is connected with the second electrode pad through the second circuit trace attached to the insulating body; One of the first electrode pad and the second electrode pad is used to connect the ground terminal of the high-voltage driving circuit, and the other is used to connect the high-voltage output terminal of the high-voltage driving circuit.

2. The ultraviolet lamp drive electrode of claim 1, wherein: The height of the first conductive ring is 0.5mm-5mm, the height of the second conductive ring is 0.5mm-5mm, the interval between the first conductive ring and the second conductive ring is 1mm-10mm, and the height of the mounting hole is 3mm-50mm.

3. The UV lamp drive electrode according to claim 1 or 2, characterized in that: The height of the first conductive ring is the same as that of the second conductive ring.

4. The ultraviolet lamp drive electrode of claim 1, wherein: The first conductive ring is attached to the inner wall of the mounting hole and extends from the upper end of the mounting hole to the upper surface of the insulating body by a predetermined width; the second conductive ring is attached to the inner wall of the mounting hole and extends from the lower end of the mounting hole to the lower surface of the insulating body by a predetermined width.

5. The ultraviolet lamp drive electrode of claim 1, wherein: The ultraviolet lamp driving electrode is prepared based on the PCB process.

6. The ultraviolet lamp drive electrode of claim 1, wherein: The material of the insulating body is FR-4 or CEM or polyimide.

7. The ultraviolet lamp drive electrode of claim 1, wherein: The cross-sectional shape of the mounting hole is circular.

8. The ultraviolet lamp drive electrode of claim 7, wherein: The cross-sectional diameter of the mounting hole is 4mm-20mm.

9. A PID sensor characterized by: The PID sensor comprises an ultraviolet lamp and an ultraviolet lamp driving electrode as claimed in any one of claims 1 to 8; the ultraviolet lamp is slidingly fitted in the mounting hole of the ultraviolet lamp driving electrode.

10. The PID sensor of claim 9, wherein: The interval between the lamp tube of the ultraviolet lamp and the first conductive ring and the second conductive ring of the ultraviolet lamp driving electrode is 0.01mm-1mm.

Images