An outer-coated film type quartz heating tube screen printing electrode and conductive structure

Abstract

The utility model discloses a kind of outer plating film type quartz heating tube silk screen electrode and conductive structure, comprising: first electrode part, second electrode part and connecting electrode;The side of first electrode part is connected on the heating film plated on the surface of quartz heating tube, second electrode part is located on the side of first electrode part away from heating film, second electrode part is used to cooperate and connect with electrode fixed sheet, and electrode fixed sheet is embraced on second electrode part.Different from the silk screen electrode structure of the ring of the past, the utility model has certain gap between second electrode part and first electrode part, so that electrode fixed sheet is far away from heating film, while guaranteeing the heating function of heating tube basis, electrode fixed sheet is far away from heating film, when heating tube is in long time or high power work, electrode fixed sheet will not be deformed because of overheating, and the situation of burning out heating film is avoided, so that the working life of heating tube is longer, and frequent maintenance is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment, specifically to a screen-printed electrode for an externally coated quartz heating tube, and a conductive structure including such a screen-printed electrode. Background Technology

[0002] An externally coated quartz heating element is a type of quartz heating element where a heating film is coated on the outer surface of the heating element. Power is supplied to the heating film, causing it to generate heat, which in turn heats the medium in contact with the heating element. The outer surface of the heating element also has screen-printed electrodes attached, which connect to the heating film and an electrode fixing plate fitted onto the heating element. Wires are connected to the electrode fixing plate to connect to an external power source, so that current flows sequentially through the electrode fixing plate, the screen-printed electrodes, and finally to the heating film.

[0003] Reference to existing technologies Figure 1 The screen-printed electrode 1 is ring-shaped and is screen-printed on the side of the heating film 3 on the surface of the heating tube 2 to connect to the side of the heating film 3. Simultaneously, an electrode retaining plate (usually C-shaped, not shown) is clamped to the surface of the screen-printed electrode 1, and wires are connected to the electrode retaining plate. However, during the operation of the quartz heating tube, the heating film 3 generates a large amount of heat. Since the electrode retaining plate and wires are in close contact with the side of the heating film 3, when the heating tube operates for a long time or generates excessive heat, the electrode retaining plate is prone to deformation due to overheating, and may even burn out the heating film, leading to heating tube failure. The electrode retaining plate also requires frequent replacement and maintenance. Utility Model Content

[0004] To overcome the shortcomings of the prior art, one objective of this utility model is to provide an externally coated quartz heating tube screen-printed electrode, and the other objective is to provide a conductive structure including such an externally coated quartz heating tube screen-printed electrode, which can solve the problems of electrode fixing pieces being prone to overheating and deformation and the heating film burning out in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A screen-printed electrode for an externally coated quartz heating tube includes: a first electrode portion, a second electrode portion, and a connecting electrode; one side of the first electrode portion is connected to a heating film on the surface of the quartz heating tube to conduct electricity through the heating film; the second electrode portion is located on the side of the first electrode portion away from the heating film, so that the second electrode portion is away from the heating film; both ends of the connecting electrode are respectively connected to the first electrode portion and the second electrode portion, so that the second electrode portion is spaced apart from the first electrode portion; the second electrode portion is adapted to be clamped with an electrode fixing piece and to conduct electricity through the electrode fixing piece.

[0007] Furthermore, the first electrode portion and the second electrode portion are annular structures, with the side of the first electrode portion attached to the side of the heating film; the connecting electrode is a long strip structure, with its two opposite ends respectively joined to the first electrode portion and the second electrode portion.

[0008] Furthermore, there are two connecting electrodes, which are arranged opposite each other on the surface of the heating tube, and each connecting electrode is respectively connected to the first electrode portion and the second electrode portion.

[0009] A conductive structure includes the aforementioned externally coated quartz heating tube screen-printed electrode, characterized in that the conductive structure further includes: a heating tube; both ends of the heating tube are printed with the externally coated heating tube screen-printed electrode, a heating film is deposited between the two externally coated heating tube screen-printed electrodes, and the two sides of the heating film are respectively connected to the two first electrode portions.

[0010] Furthermore, the conductive structure also includes: an electrode fixing piece; the electrode fixing piece is clamped onto the second electrode portion to achieve conductivity with the second electrode portion.

[0011] Furthermore, the electrode fixing piece has a C-shaped structure, and the width of the electrode fixing piece is not less than the width of the second electrode portion.

[0012] Furthermore, the conductive structure also includes: a wire; the wire is fastened to the electrode fixing plate to achieve electrical connection with the electrode fixing plate.

[0013] Furthermore, a connection hole is provided on the open end of the electrode fixing plate, and the wire is fastened to the connection hole by bolts.

[0014] Compared with existing technologies, the beneficial effects that this utility model can achieve are as follows:

[0015] Unlike previous screen-printed electrode structures that were circular, the screen-printed electrode structure of this invention includes a first electrode portion, a second electrode portion, and a connecting electrode. The first electrode portion connects to the heating film on the heating element, the second electrode portion connects to the electrode fixing plate, and the connecting electrode connects to both the first and second electrode portions along its length. When the circuit is open, current flows sequentially from the electrode fixing plate through the second electrode portion, the connecting electrode, and the first electrode portion, ultimately reaching the heating film to supply power. The heating film then generates heat to heat the external medium.

[0016] In this invention, the connecting electrodes create a certain gap between the second electrode portion and the first electrode portion, thus keeping the electrode fixing plate away from the heating film (conventionally, the electrode fixing plate is close to the heating film). While ensuring the basic heating function of the heating tube, the electrode fixing plate is further away from the heating film, and the gap prevents it from overheating. When the heating tube operates for extended periods or at high power, the electrode fixing plate will not deform due to overheating, preventing the heating film from burning out. This extends the lifespan of the heating tube and reduces the need for frequent maintenance. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic diagram of the structure of the screen-printed electrode of the heating element in the prior art;

[0018] Figure 2 The diagram shown is a schematic diagram of the screen printing electrode of this utility model;

[0019] Figure 3 As shown Figure 2 Top view;

[0020] Figure 4 As shown Figure 2 The front view;

[0021] Figure 5 The diagram shown is an assembly diagram of the conductive structure of this utility model.

[0022] Figure 6 The diagram shown is an exploded view of the conductive structure of this invention.

[0023] In the figure: 10, screen-printed electrode of externally coated quartz heating tube; 11, first electrode part; 12, second electrode part; 13, connecting electrode; 20, heating tube; 21, heating film; 30, electrode fixing plate; 40, wire; 50, bolt. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] This utility model discloses a screen-printed electrode 10 for an externally coated quartz heating tube, which is applied to an externally coated quartz heating tube 20 and to related heating equipment on which the quartz heating tube 20 is installed.

[0029] See Figures 2-4 This externally coated quartz heating tube screen-printed electrode 10 includes a first electrode portion 11, a second electrode portion 12, and a connecting electrode 13. One side of the first electrode portion 11 is connected to a heating film 21 coated on the surface of the quartz heating tube 20, thus the first electrode portion 11 is conductive to the heating film 21. The second electrode portion 12 is located on the side of the first electrode portion 11 facing away from the heating film 21, thus the second electrode portion 12 is away from the heating film 21. The two ends of the connecting electrode 13 are respectively connected to the first electrode portion 11 and the second electrode portion 12, so that the second electrode portion 12 and the first electrode portion 11 are spaced apart, with the spacing being equal to the length of the connecting electrode 13. The second electrode portion 12 is used to cooperate with an electrode fixing piece 30, which clamps onto the second electrode portion 12, thus achieving conductivity between the electrode fixing piece 30 and the second electrode portion 12.

[0030] Unlike the previous circular screen printing electrode structure, the screen printing electrode structure of this utility model includes a first electrode part 11, a second electrode part 12, and a connecting electrode 13. The first electrode part 11 is used to connect to the heating film 21 on the heating tube 20, and the second electrode part 12 is used to connect to the electrode 13 fixing plate. The two ends of the connecting electrode 13 along its length are respectively connected to the first electrode part 11 and the second electrode part 12. When the circuit is open, current is sequentially transmitted from the electrode fixing plate 30 through the second electrode part 12, the connecting electrode 13, and the first electrode part 11 to the heating film 21, thus supplying power to the heating film 21. The heating film 21 generates heat to heat the external medium.

[0031] In this invention, the connecting electrode 13 creates a certain gap between the second electrode portion 12 and the first electrode portion 11, thus keeping the electrode fixing piece 30 away from the heating film 21 (conventionally, the electrode fixing piece is close to the heating film). While ensuring the basic heating function of the heating tube 20, the electrode fixing piece 30 is further away from the heating film 21 with a certain gap, making it less susceptible to overheating. When the heating tube 20 operates for extended periods or at high power, the electrode fixing piece 30 will not deform due to overheating, preventing the heating film 21 from burning out. This extends the service life of the heating tube 20 and eliminates the need for frequent maintenance.

[0032] Specifically, both the first electrode portion 11 and the second electrode portion 12 have annular structures. The side of the first electrode portion 11 is attached to the side of the heating film 21. Since the heating film 21 is also wrapped in a ring shape around the surface of the heating tube 20, the side of the annular first electrode portion 11 can cover the side of the heating film 21, resulting in a large contact length between them, which is beneficial for current transmission. The electrode fixing piece 30 is preferably a C-shaped structure with an opening, so the annular second electrode portion 12 can cover the inner sidewall area of ​​the electrode fixing piece 30, resulting in a large contact area between them, which is also beneficial for current transmission. The connecting electrode 13 has a long strip structure, with its two opposite ends connected to the first electrode portion 11 and the second electrode portion 12, respectively. The long strip structure helps to create a large gap between the first electrode portion 11 and the second electrode portion 12, thereby keeping the electrode fixing piece 30 away from the heating film 21.

[0033] More specifically, in order to ensure the efficiency of current conduction, there are two connecting electrodes 13. The two connecting electrodes 13 are arranged opposite each other on the surface of the heating tube 20. The two connecting electrodes 13 are respectively connected to the first electrode part 11 and the second electrode part 12.

[0034] See Figures 5-6This utility model also discloses a conductive structure, which includes the above-mentioned externally coated quartz heating tube screen-printed electrode 10; any conductive structure that uses the same or substantially the same screen-printed electrode shall be within the protection scope of this utility model.

[0035] The conductive structure also includes a heating tube 20, on which a heating film 21 is plated. Both sides of the heating film 21 are printed with the aforementioned externally plated quartz heating tube screen-printed electrodes 10. The two sides of the heating film 21 are respectively connected to the first electrode portion 11 of the two screen-printed electrodes.

[0036] More preferably, the conductive structure further includes an electrode fixing piece 30, which clamps onto the second electrode portion 12 to achieve electrical connection with it. The electrode fixing piece 30 is preferably a C-shaped structure with an opening, and its width is not less than the width of the second electrode portion 12 to ensure sufficient contact area.

[0037] More preferably, the conductive structure also includes a wire 40; one end of the wire 40 is fastened to the electrode fixing plate 30, thereby achieving conductivity with the electrode fixing plate 30, and the other end is connected to an external power source. A connection hole is provided on the open end of the electrode fixing plate 30, and the wire 40 is fastened to the connection hole by a bolt 50 and a nut.

[0038] The working principle of this utility model is as follows:

[0039] See Figure 5 When the wire 40 is connected to an external power source, current flows in from one side of the wire 40 and sequentially through the electrode fixing plate 30, the second electrode part 12, the connecting electrode 13, and the first electrode part 11, finally reaching the heating film 21. The current then flows out through the screen-printed electrode, the electrode fixing plate 30, and the wire 40 on the other side. During this process, the heating film 21 is energized and generates heat, heating the medium in contact with the heating element 20.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A screen-printed electrode for an externally coated quartz heating tube, characterized in that, include: A first electrode portion, a second electrode portion, and a connecting electrode; one side of the first electrode portion is connected to a heating film on the surface of the quartz heating tube to conduct electricity to the heating film; The second electrode portion is located on the side of the first electrode portion away from the heating film, so that the second electrode portion is away from the heating film; the two ends of the connecting electrode are respectively connected to the first electrode portion and the second electrode portion, so that the second electrode portion is spaced apart from the first electrode portion; the second electrode portion is adapted to be clamped with the electrode fixing piece and to be in communication with the electrode fixing piece.

2. The overcoated quartz heater tube screen printed electrode of claim 1, wherein, The first electrode portion and the second electrode portion are circular ring structures, and the side of the first electrode portion is attached to the side of the heating film; the connecting electrode is a long strip structure, and the two opposite ends of the connecting electrode are respectively connected to the first electrode portion and the second electrode portion.

3. The overcoated quartz heater tube screen printed electrode of claim 1, wherein, The number of connecting electrodes is two, and the two connecting electrodes are arranged opposite each other on the surface of the heating tube. The two connecting electrodes are respectively connected to the first electrode part and the second electrode part.

4. An electrically conductive structure comprising the outer-clad quartz heater tube screen-printed electrode according to any one of claims 1 to 3, wherein, The conductive structure further includes: a heating element; both ends of the heating element are printed with the externally coated heating element screen printing electrode, and a heating film is plated between the two externally coated heating element screen printing electrodes, with the heating film connected to the two first electrode portions on both sides respectively.

5. The conductive structure of claim 4, wherein, The conductive structure further includes: an electrode fixing piece; the electrode fixing piece is clamped onto the second electrode portion to achieve conductivity with the second electrode portion.

6. The conductive structure of claim 5, wherein, The electrode fixing plate has a C-shaped structure, and the width of the electrode fixing plate is not less than the width of the second electrode portion.

7. The conductive structure of claim 5, wherein, The conductive structure further includes: a wire; the wire is fastened to the electrode fixing plate to achieve conductivity with the electrode fixing plate.

8. The conductive structure of claim 7, wherein, The electrode fixing plate has a connection hole at its open end, and the wire is fastened to the connection hole by a bolt.

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