Glass gas discharge tube with high surge and low clamping voltage
By using alumina ceramic rods and toner ring structures in the discharge tube, the problem of insufficient lightning resistance of existing discharge tubes is solved, and the effect of high surge and low clamp voltage is achieved, reducing costs and improving response speed.
Patent Information
- Application Number
- CN202421687353.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing discharge tubes have low lightning resistance, and the large size of the silicon chip leads to insufficient internal space.
The alumina ceramic rod and toner ring structure are adopted. The alumina ceramic rod is wrapped in the toner ring to form an inert gas in the storage cavity, and the alumina ceramic rod and the dumagnesium line are securely connected.
It improves the lightning resistance and heat dissipation performance of the discharge tube, reduces the production cost and clamping voltage, and improves the response speed.
Smart Images
Figure CN223140717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic components, and particularly relates to a glass gas discharge tube with high surge and low clamping voltage. Background Art
[0002] In modern society, discharge tubes are widely used in the field of electronic circuits. Among them, the existing discharge tubes mainly consist of electrodes, a glass shell and a silicon chip. However, the volume of the silicon chip is relatively large, so the setting of the silicon chip will reduce the internal space of the discharge tube, resulting in a relatively low lightning resistance of the existing discharge tubes.
[0003] Therefore, it is necessary to provide a glass gas discharge tube with high surge and low clamping voltage to solve the above technical problems. Summary of the Utility Model
[0004] The utility model provides a glass gas discharge tube with high surge and low clamping voltage, effectively solving the technical problem of relatively low lightning resistance of the existing discharge tubes.
[0005] The utility model provides a glass gas discharge tube with high surge and low clamping voltage, which comprises:
[0006] A glass tube;
[0007] A first Dumet wire connected to one end of the glass tube;
[0008] A second Dumet wire, relative to the first Dumet wire, connected to the other end of the glass tube, and a receiving cavity is formed between the second Dumet wire and the first Dumet wire;
[0009] An inert gas disposed inside the receiving cavity;
[0010] A plurality of alumina ceramic rods located inside the receiving cavity, one end of the alumina ceramic rod is connected to the first Dumet wire, and the other end of the alumina ceramic rod is connected to the second Dumet wire;
[0011] A carbon powder ring disposed inside the alumina ceramic rod, a first distance is provided between the carbon powder ring and the first Dumet wire, and a second distance is provided between the carbon powder ring and the second Dumet wire;
[0012] Wherein, the length of the first distance is 0.25 mm - 0.35 mm, and the length of the second distance is 0.25 mm - 0.35 mm.
[0013] Further, one end of the first Dumei wire is provided with a first groove, one end of the second Dumei wire is provided with a second groove, one end of the alumina ceramic rod is clamped with the first groove, and the other end of the alumina ceramic rod is clamped with the second groove, so as to ensure the stable connection between the alumina ceramic rod and the first Dumei wire and the stable connection between the alumina ceramic rod and the second Dumei wire.
[0014] Further, the length of the alumina ceramic rod is 4.15 mm - 4.25 mm, and the diameter of the alumina ceramic rod is 0.48 mm - 0.52 mm.
[0015] Further, the length of the carbon powder ring is 3.15 mm - 3.25 mm.
[0016] Further, the number of the alumina ceramic rods is 4 - 6.
[0017] Further, the shapes of the first Dumei wire and the second Dumei wire are both in a T shape, and the discharge gap between the first Dumei wire and the second Dumei wire is 3.7 mm - 3.9 mm.
[0018] Further, the glass tube is a double-layer glass structure, the outer diameter of the glass tube is 4.45 mm - 4.55 mm, the inner diameter of the glass tube is 3.05 - 3.15 mm, and the length of the glass tube is 9.9 mm - 10.1 mm.
[0019] Further, the glass tube further includes a first card slot and a second card slot, the first card slot and the second card slot are respectively arranged at two ends of the glass tube, the first Dumei wire further includes a first clamping part located at one end of the first Dumei wire far away from the alumina ceramic rod, the second Dumei wire further includes a second clamping part located at one end of the second Dumei wire far away from the alumina ceramic rod, the first clamping part is clamped with the first card slot, and the second clamping part is clamped with the second card slot, so as to ensure the stable connection between the first Dumei wire and the glass tube and the stable connection between the second Dumei wire and the glass tube.
[0020] Further, the inert gas includes argon and neon, and the gas ratio of the inert gas is that argon accounts for 10% - 50%, and neon accounts for 50% - 90%.
[0021] Further, the depth of the first card slot is 0.19 - 0.21 mm, and the diameter of the first card slot is 0.48 mm - 0.52 mm; the depth of the second card slot is 0.19 - 0.21 mm, and the diameter of the second card slot is 0.48 mm - 0.52 mm.
[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a glass gas discharge tube with high surge resistance and low clamping voltage. The glass gas discharge tube is provided with an alumina ceramic rod, and a carbon powder ring is wrapped inside the alumina ceramic rod. Compared with a silicon chip, the alumina ceramic rod occupies less space. Thus, the setting of the alumina ceramic rod ensures a sufficiently large space inside the discharge tube, thereby improving the lightning protection ability of the glass gas discharge tube and effectively solving the technical problem of the low lightning protection ability of the existing discharge tube. Moreover, since the cost of the alumina ceramic rod is lower than that of the silicon core, the manufacturing cost of the glass gas discharge tube is relatively low. Compared with inert gas, the heat capacity of the alumina ceramic rod is larger, so the setting of the alumina ceramic rod can improve the heat dissipation ability of the discharge tube and further improve the surge protection ability of the glass gas discharge tube. Due to the good heat dissipation performance of the glass gas discharge tube, even if the glass gas discharge tube is subjected to multiple impacts of surge voltage, the glass gas discharge tube still has good performance.
[0023] Furthermore, the carbon powder ring has excellent electrical conductivity, which can effectively reduce the conduction time of the glass gas discharge tube, thereby improving the response speed of the discharge tube to surge voltage. And the carbon powder ring reduces the impedance when the glass gas discharge tube conducts, thus further reducing the clamping voltage of the glass gas discharge tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only the corresponding drawings of some embodiments of the present utility model.
[0025] Figure 1 FIG. is a schematic diagram of the internal structure of an embodiment of the footrest for a lunch break desk of the present utility model.
[0026] Figure 2 FIG. is a cross-sectional view taken along line A-A' of the internal structure of an embodiment of the footrest for a lunch break desk of the present utility model.
[0027] In the figure, 10, glass gas discharge tube; 11, glass tube; 111, first card slot; 112, second card slot; 12, first Dumei wire; 111, first groove; 112, first clamping portion; 13, second Dumei wire; 131, second groove; 132, second clamping portion; 14, alumina ceramic rod; 15, carbon powder ring; 16, accommodation cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.
[0029] The directional terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", "top" and "bottom", etc., are only with reference to the orientation of the accompanying drawings. The directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model.
[0030] The terms "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying relative importance, nor as a limitation on the order of precedence.
[0031] In the figure, units with similar structures are denoted by the same reference numerals.
[0032] Please refer to Figure 1 and Figure 2 , the present utility model provides a glass gas discharge tube 10 with high surge and low clamping voltage. The glass gas discharge tube 10 includes a glass tube 11, a first Dumet wire 12, a second Dumet wire 13, an inert gas, an alumina ceramic rod 14, and a carbon powder ring 15. The glass tube 11 is a double-layer glass structure, and the outer diameter of the glass tube 11 is 4.45 mm - 4.55 mm. The inner diameter of the glass tube 11 is 3.05 - 3.15 mm, and the length of the glass tube 11 is 9.9 mm - 10.1 mm. The first Dumet wire 12 is connected to one end of the glass tube 11, and the second Dumet wire 13 is connected to the other end of the glass tube 11 relative to the first Dumet wire 12. A receiving cavity 16 is formed between the second Dumet wire 13 and the first Dumet wire 12. Moreover, the shapes of the first Dumet wire 12 and the second Dumet wire 13 are both in a T shape, and the discharge gap between the first Dumet wire 12 and the second Dumet wire 13 is 3.7 mm - 3.9 mm. A first electrode (not shown in the figure) is connected to the first Dumet wire 12, and a second electrode (not shown in the figure) is connected to the second Dumet wire 13. Both the first electrode and the second electrode can be used for conducting electricity.
[0033] Please refer to Figure 1 and Figure 2, the glass tube 11 further includes a first card slot 111 and a second card slot 112, which are respectively arranged at both ends of the glass tube 11. The first duralumin wire 12 further includes a first clamping portion 122, and the first clamping portion 122 is located at one end of the first duralumin wire 12 away from the alumina ceramic rod 14. The depth of the first card slot 111 is 0.19 - 0.21 mm, and the diameter of the first card slot 111 is 0.48 mm - 0.52 mm. Since the first duralumin wire 12 is clamped to the first card slot 111 through the first clamping portion 122, the connection between the first duralumin wire 12 and the glass tube 11 is relatively stable. Even if the user uses the glass gas discharge tube 10 for a long time, the first duralumin wire 12 will not fall off from the glass tube 11. The second duralumin wire 13 further includes a second clamping portion 132, and the second clamping portion 132 is located at one end of the second duralumin wire 13 away from the alumina ceramic rod 14. The first clamping portion 122 is clamped to the first card slot 111, and the second clamping portion 132 is clamped to the second card slot 112. The depth of the second card slot 112 is 0.19 - 0.21 mm, and the diameter of the second card slot 112 is 0.48 mm - 0.52 mm. Since the second duralumin wire 13 is clamped to the first card slot 111 through the second clamping portion 132, the connection between the second duralumin wire 13 and the glass tube 11 is relatively stable. Even if the user uses the glass gas discharge tube 10 for a long time, the second duralumin wire 13 will not fall off from the glass tube 11.
[0034] Please refer to Figure 1 and Figure 2 , an inert gas is arranged inside the accommodation cavity 16. The inert gas includes argon and neon, and the gas ratio of the inert gas is that argon accounts for 10% - 50% and neon accounts for 50% - 90%. A plurality of alumina ceramic rods 14 are arranged inside the accommodation cavity 16, and the number of the alumina ceramic rods 14 is 4 - 6. The length of the alumina ceramic rod 14 is 4.15 mm - 4.25 mm, and the diameter of the alumina ceramic rod 14 is 0.48 mm - 0.52 mm. One end of the alumina ceramic rod 14 is connected to the first duralumin wire 12, and the other end of the alumina ceramic rod 14 is connected to the second duralumin wire 13. Moreover, a first groove 121 is arranged at one end of the first duralumin wire 12, and one end of the alumina ceramic rod 14 is clamped to the first groove 121. Since the first duralumin wire 12 is clamped to the alumina ceramic rod 14 through the first groove 121, the connection between the alumina ceramic rod 14 and the first duralumin wire 12 is relatively stable. A second groove 131 is arranged at one end of the second duralumin wire 13, and the other end of the alumina ceramic rod 14 is clamped to the second groove 131. Since the second duralumin wire 13 is clamped to the alumina ceramic rod 14 through the second groove 131, the connection between the alumina ceramic rod 14 and the second duralumin wire 13 is stable. Even if the glass gas discharge tube 10 is subjected to an external force, the alumina ceramic rod 14 is not likely to become loose, and the assembly stability of the alumina ceramic rod 14 is relatively strong.
[0035] Please refer to Figure 1 and Figure 2 , the toner ring 15 is arranged inside the alumina ceramic rod 14, and the length of the toner ring 15 is 3.15 mm - 3.25 mm. A first spacing is provided between the toner ring 15 and the first Dumet wire 12, and a second spacing is provided between the toner ring 15 and the second Dumet wire 13. Among them, the length of the first spacing is 0.25 mm - 0.35 mm, and the length of the second spacing is 0.25 mm - 0.35 mm.
[0036] Please refer to Figure 1 and Figure 2 , the glass gas discharge tube 10 obtains a discharge gap by the distance between the electrodes. The glass tube 11 is filled with an inert gas, and the glass tube 11 and the Dumet wire are connected by a glass sealing method. When the voltage at both ends of the glass gas discharge tube 10 increases, the nearby gas is ionized, and a discharge phenomenon begins to appear at the gap. As the voltage drop between the two electrodes gradually increases, the discharge current also increases, and the ionization region of the discharge tube also expands. At this time, the discharge current flows through the gas ionization region to the other electrode. When the current continues to increase to a certain extent, a conversion from glow discharge to arc discharge occurs inside the tube, and the glass gas discharge tube 10 changes from a high-resistance state to a low-resistance state. Thus, the glass gas discharge tube 10 can discharge the surge voltage and protect the subsequent circuit. After the surge voltage disappears, the glass gas discharge tube 10 returns to the high-resistance state again.
[0037] The installation process of the present utility model is as follows: First, the user connects the first clamping portion 122 with the first card slot 111, so that the first Dumet wire 12 is connected to one end of the glass tube 11. Subsequently, the user installs the alumina ceramic rod 14 inside the accommodating cavity 16, and the user clamps the alumina ceramic rod 14 on the first Dumet wire 12 through the first groove 121. Then, the user connects the second clamping portion 132 with the second card slot 112, so that the second Dumet wire 13 is connected to the other end of the glass tube 11. And, the user clamps the alumina ceramic rod 14 on the second Dumet wire 13 through the second groove 131. In order to reduce the conduction time of the glass gas discharge tube 10, a toner ring 15 is wrapped inside the alumina ceramic rod 14. Then, the user fills the accommodating cavity 16 between the first Dumet wire 12 and the second Dumet wire 13 with an inert gas. After that, the user performs high-temperature sealing on the first Dumet wire 12 and the glass tube 11, and the user performs high-temperature sealing on the second Dumet wire 13 and the glass tube 11, so that the user completes the installation of the glass gas discharge tube 10.
[0038] The glass gas discharge tube 10 is initially in a high-resistance state, and the user can apply a voltage to the electrodes of the glass gas discharge tube 10. As the voltage increases, the voltage drop between the first electrode and the second electrode of the glass gas discharge tube 10 gradually increases. Furthermore, the ionization region near the electrodes gradually increases until a conductive channel is formed between the two electrodes, so that the voltage can break down the glass gas discharge tube 10, and at this time the voltage can be released by the glass gas discharge tube 10. Subsequently, the glass gas discharge tube 10 can return to the high-resistance state. During the discharge breakdown process, since the carbon powder ring 15 has good electrical conductivity, the conductive channel of the glass gas discharge tube 10 can be formed quickly. Thus, the glass gas discharge tube 10 has a fast discharge speed. The setting of the carbon powder ring 15 effectively reduces the voltage value of the clamping voltage of the glass gas discharge tube 10, and the glass gas discharge tube 10 can quickly discharge the surge voltage.
[0039] The utility model provides a glass gas discharge tube with high surge and low clamping voltage. The glass gas discharge tube is provided with an alumina ceramic rod, and a carbon powder ring is wrapped inside the alumina ceramic rod. Compared with a silicon chip, the alumina ceramic rod occupies less space. Thus, the setting of the alumina ceramic rod ensures a sufficiently large space inside the discharge tube, and further improves the lightning resistance of the glass gas discharge tube, effectively solving the technical problem of the low lightning resistance of the existing discharge tube. Moreover, since the cost of the alumina ceramic rod is lower than that of the silicon core, the manufacturing cost of the glass gas discharge tube is lower. Compared with inert gas, the heat capacity of the alumina ceramic rod is larger, so the setting of the alumina ceramic rod can improve the heat dissipation capacity of the discharge tube, and further improve the surge protection ability of the glass gas discharge tube. Since the glass gas discharge tube has good heat dissipation, even if the glass gas discharge tube withstands multiple impacts of surge voltage, the glass gas discharge tube still has good performance.
[0040] Moreover, the carbon powder ring has excellent electrical conductivity, which can effectively reduce the conduction time of the glass gas discharge tube, and further improve the response speed of the discharge tube to the surge voltage. And the carbon powder ring reduces the impedance when the glass gas discharge tube conducts, thus further reducing the clamping voltage of the glass gas discharge tube.
[0041] In summary, although the present utility model has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present utility model. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model is subject to the scope defined by the claims.
Claims
1. A glass gas discharge tube with high surge and low clamping voltage, characterized in that, It includes: A glass tube; A first Dumet wire connected to one end of the glass tube; A second Dumet wire connected to the other end of the glass tube relative to the first Dumet wire, and a receiving cavity is formed between the second Dumet wire and the first Dumet wire; An inert gas disposed inside the receiving cavity; A plurality of alumina ceramic rods located inside the receiving cavity, one end of the alumina ceramic rod is connected to the first Dumet wire, and the other end of the alumina ceramic rod is connected to the second Dumet wire; A carbon powder ring disposed inside the alumina ceramic rod, a first distance is provided between the carbon powder ring and the first Dumet wire, and a second distance is provided between the carbon powder ring and the second Dumet wire; Wherein, the length of the first distance is 0.25 mm - 0.35 mm, and the length of the second distance is 0.25 mm - 0.35 mm.
2. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, One end of the first Dumet wire is provided with a first groove, one end of the second Dumet wire is provided with a second groove, one end of the alumina ceramic rod is snap-fitted with the first groove, and the other end of the alumina ceramic rod is snap-fitted with the second groove.
3. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The length of the alumina ceramic rod is 4.15 mm - 4.25 mm, and the diameter of the alumina ceramic rod is 0.48 mm - 0.52 mm.
4. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The length of the carbon powder ring is 3.15 mm - 3.25 mm.
5. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The number of the alumina ceramic rods is 4 - 6.
6. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The shapes of the first Dumet wire and the second Dumet wire are both T-shaped, and the discharge gap between the first Dumet wire and the second Dumet wire is 3.7 mm - 3.9 mm.
7. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The glass tube is a double-layer glass structure, the outer diameter of the glass tube is 4.45 mm - 4.55 mm, the inner diameter of the glass tube is 3.05 - 3.15 mm, and the length of the glass tube is 9.9 mm - 10.1 mm.
8. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The glass tube further includes a first card slot and a second card slot, the first card slot and the second card slot are respectively disposed at both ends of the glass tube, the first Dumet wire further includes a first snap-fitting portion located at the end of the first Dumet wire away from the alumina ceramic rod, the second Dumet wire further includes a second snap-fitting portion located at the end of the second Dumet wire away from the alumina ceramic rod, the first snap-fitting portion is snap-fitted with the first card slot, and the second snap-fitting portion is snap-fitted with the second card slot.
9. The glass gas discharge tube with high surge and low clamping voltage according to claim 1, characterized in that, The inert gas includes argon and neon, and the gas ratio of the inert gas is that argon accounts for 10% - 50%, and neon accounts for 50% - 90%.
10. The glass gas discharge tube with high surge and low clamping voltage according to claim 8, characterized in that, The depth of the first card slot is 0.19 - 0.21 mm, and the diameter of the first card slot is 0.48 mm - 0.52 mm; the depth of the second card slot is 0.19 - 0.21 mm, and the diameter of the second card slot is 0.48 mm - 0.52 mm.