CN219066758U - Ceramic discharge tube with high air tightness - Google Patents
Ceramic discharge tube with high air tightness Download PDFInfo
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- CN219066758U CN219066758U CN202223139559.1U CN202223139559U CN219066758U CN 219066758 U CN219066758 U CN 219066758U CN 202223139559 U CN202223139559 U CN 202223139559U CN 219066758 U CN219066758 U CN 219066758U
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Abstract
The utility model provides a high-air-tightness ceramic discharge tube, which relates to the technical field of discharge tubes and comprises a fixed shell, two electrode assemblies and two annular sealing cover assemblies, wherein the two electrode assemblies are respectively and fixedly connected to two ends of the fixed shell and are symmetrically arranged; the ceramic discharge tube with high air tightness can effectively prevent the leakage of internal inert gas and prolong the service life of the ceramic discharge tube.
Description
Technical Field
The utility model relates to the technical field of discharge tubes, in particular to a ceramic discharge tube with high air tightness.
Background
Along with the steady development of the power industry in China, the rapid development of electronic products in China is promoted, the ceramic discharge tube plays a good circuit protection role in the circuit of the electronic products, and is widely applied to the electronic field, the ceramic discharge tube is sealed and packaged by ceramics, the inside of the ceramic discharge tube is composed of two or more metal electrodes with gaps, inert gases such as argon and neon are filled in the metal electrodes, when the voltage applied to the two electrode ends reaches the purpose of enabling the gas in the gas discharge tube to break down, the gas discharge tube starts to discharge, the high impedance is changed into low impedance, the surge voltage is rapidly shorted to be close to zero voltage, and overcurrent is released into the ground, so that the protection role on the subsequent circuit is played.
However, when the ceramic discharge tube is used for a long time, the leakage of inert gas in the ceramic discharge tube can reduce the circuit protection effect of the ceramic discharge tube, reduce the service life and be unfavorable for the subsequent protection of the circuit.
Therefore, it is necessary to provide a ceramic discharge tube with high gas tightness to enhance the gas tightness effect inside, thereby prolonging the service life.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a ceramic discharge tube with high gas tightness to enhance the gas tightness effect inside, thereby prolonging the service life.
The utility model is realized by the following technical scheme:
the utility model provides a high-air-tightness ceramic discharge tube which comprises a fixed shell, two electrode assemblies and two annular sealing cover assemblies, wherein the two electrode assemblies are respectively and fixedly connected to two ends of the fixed shell and are symmetrically arranged, one end of each electrode assembly is provided with an inserting part, each inserting part extends into the fixed shell and is in sealing connection with the inner wall of the fixed shell, the two annular sealing cover assemblies are respectively in one-to-one correspondence with the two electrode assemblies and shade the joint of each inserting part and the fixed shell and form sealing connection, the outer ring of each annular sealing cover assembly is in clamping connection with the fixed shell, and the inner ring of each annular sealing cover assembly is in clamping connection with each inserting part.
Further, the insertion part comprises a conductive component, a first sealing ring, a second sealing ring and a fixing component, wherein the conductive component penetrates through the fixing component and is fixedly connected with the fixing component, an outer ring of the first sealing ring is tightly and fixedly connected with the fixing component, an inner ring of the first sealing ring is tightly and fixedly connected with one end of the conductive component, an inner ring of the second sealing ring is sleeved on the outer peripheral side of the fixing component, an outer ring of the second sealing ring is tightly connected with the inner wall of the fixing shell, and the fixing component is inserted into one end of the fixing shell.
Furthermore, an inserting groove is formed in one end of the fixing shell, the fixing assembly is accommodated in the inserting groove and is abutted to the groove wall of the inserting groove, and the outer ring of the second sealing ring is tightly connected with the groove wall of the inserting groove.
Further, the fixed subassembly includes fixed lid, third sealing washer, the outer loop of first sealing washer closely fixed connection in the upper surface of fixed lid, the second sealing washer snare is located on the periphery side of fixed lid, electrically conductive subassembly runs through fixed lid and one end embedding in the fixed lid, one side fixed connection of third sealing washer in the fixed lid, the opposite side of third sealing washer with electrically conductive subassembly zonulae occludens.
Further, a first embedded groove is formed in the fixing cover, the third sealing ring is fixedly connected to the bottom wall of the first embedded groove, and a part of the conductive assembly is accommodated in the first embedded groove.
Further, a second embedded groove is formed in the fixing cover, the second embedded groove surrounds the first embedded groove, the first sealing ring is contained in the second embedded groove and clings to the groove wall of the second embedded groove, an embedded plate is arranged on the conductive component, and the embedded plate is contained in the second embedded groove and clings to the inner ring of the first sealing ring.
Further, an annular fixing groove is formed in the outer peripheral side of the fixing cover, and a part of the second sealing ring is accommodated in the annular fixing groove.
Further, the annular sealing cover assembly comprises a clamping cover and an airtight ring, one side of the airtight ring is fixedly connected to the inner side of the clamping cover, the other side of the airtight ring shields the joint of the insertion part and the fixing shell and forms sealing connection, an outer ring of the clamping cover is fixedly connected with one end of the fixing shell in a clamping manner, and an inner ring of the clamping cover is fixedly connected with the back of the insertion part in a clamping manner.
Further, a first annular clamping position is arranged on the clamping cover, a first annular clamping groove is formed in one end of the fixing shell, and the first annular clamping position is connected with the first annular clamping groove in a clamping mode.
Further, a second annular clamping position is arranged on the clamping cover, a second annular clamping groove is formed in the back of the insertion portion, and the second annular clamping position is connected with the second annular clamping groove in a clamping mode.
The utility model has the beneficial effects that:
the utility model adopts the sealing structure of the insertion part and the annular sealing cover assembly to seal the inert gas filled in the fixed shell, thereby effectively preventing the leakage of the internal inert gas and further prolonging the service life of the ceramic discharge tube; when assembling, after filling inert gas into the assembling environment, respectively inserting the two electrode assemblies into two ends of the fixed shell, sealing the inert gas in a space between the two inserting parts after the inserting parts are tightly connected with the inner wall of the fixed shell, and then respectively and fixedly clamping and connecting the two annular sealing cover assemblies onto the fixed shell and the back part of the inserting part, wherein a gap between the fixed shell and the inserting part is shielded by the annular sealing cover assemblies, so that the sealing effect is improved, and the inert gas in the fixed shell cannot leak; in summary, the ceramic discharge tube with high air tightness can effectively prevent the leakage of internal inert gas and prolong the service life of the ceramic discharge tube.
Drawings
FIG. 1 is an exploded view of a highly hermetic ceramic discharge vessel of the present utility model;
FIG. 2 is an overall schematic view of a highly hermetic ceramic discharge vessel according to the present utility model;
FIG. 3 is a cross-sectional view of a highly hermetic ceramic discharge vessel according to the present utility model;
FIG. 4 is an exploded view of an electrode assembly of a highly airtight ceramic discharge tube according to the present utility model;
FIG. 5 is an exploded view of the annular sealing cap of the highly airtight ceramic discharge vessel of the present utility model;
FIG. 6 is a schematic view of a fixture housing of a highly hermetic ceramic discharge vessel according to the present utility model;
fig. 7 is an enlarged partial schematic view of the reference symbol a of fig. 3.
The reference numerals are as follows:
a fixed shell 1, an inserting groove 11 and a first annular clamping groove 12;
the annular sealing cover assembly 3, the clamping cover 31, the first annular clamping position 311, the second annular clamping position 312 and the airtight ring 32.
Detailed Description
In order to more clearly and completely describe the technical scheme of the utility model, the utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1-7, the present utility model provides a ceramic discharge tube with high air tightness, which comprises a fixing shell 1, two electrode assemblies 2, and two annular sealing cover assemblies 3, wherein the two electrode assemblies 2 are respectively and fixedly connected to two ends of the fixing shell 1 and symmetrically arranged, one end of each electrode assembly 2 is provided with an insertion portion 21, the insertion portions 21 extend into the fixing shell 1 and form sealing connection with the inner wall of the fixing shell 1, the two annular sealing cover assemblies 3 respectively correspond to the two electrode assemblies 2 one by one and shield the joint of the insertion portions 21 and the fixing shell 1 and form sealing connection, the outer ring of each annular sealing cover assembly 3 is in clamping connection with the fixing shell 1, and the inner ring of each annular sealing cover assembly 3 is in clamping connection with the insertion portion 21.
In the present embodiment, the following is described.
The fixing shell 1 is used for providing a stable installation structure for the two electrode assemblies 2 and the two annular sealing cover assemblies 3 and a storage structure for inert gas, and the fixing shell 1 is of a cylindrical tubular structure;
the electrode assembly 2 is for conducting electricity;
the insertion part 21 serves to provide a structure for the electrode assembly 2 to be inserted into the end of the fixing case 1;
the annular sealing cover assembly 3 is used for sealing the gap between the insertion part 21 and the inner wall of the fixed shell 1;
specifically, when assembling, after the assembly environment is filled with inert gas, two electrode assemblies 2 are respectively inserted into two ends of the fixed shell 1, after the insertion parts 21 are tightly connected with the inner wall of the fixed shell 1, the inert gas is sealed in the space between the two insertion parts 21, then two annular sealing cover assemblies 3 are respectively and fixedly clamped on the fixed shell 1 and the back of the insertion part 21, and at the moment, the gap between the fixed shell 1 and the insertion part 21 is blocked by the annular sealing cover assemblies 3, so that the sealing effect is improved, and the inert gas in the fixed shell 1 cannot leak;
in summary, the ceramic discharge tube with high air tightness can effectively prevent the leakage of internal inert gas and prolong the service life of the ceramic discharge tube.
Further, the insertion portion 21 includes a conductive component 211, a first sealing ring 212, a second sealing ring 213, and a fixing component 214, where the conductive component 211 penetrates through the fixing component 214 and is fixedly connected with the fixing component 214, an outer ring of the first sealing ring 212 is tightly and fixedly connected with the fixing component 214, an inner ring of the first sealing ring 212 is tightly and fixedly connected with one end of the conductive component 211, an inner ring of the second sealing ring 213 is sleeved on an outer peripheral side of the fixing component 214, an outer ring of the second sealing ring 21 forms a tight connection with an inner wall of the fixing shell 1, and the fixing component 214 is inserted into one end of the fixing shell 1; an insertion groove 11 is formed at one end of the fixing housing 1, the fixing assembly 214 is accommodated in the insertion groove 11 and abuts against the groove wall of the insertion groove 11, and the outer ring of the second sealing ring 21 is tightly connected with the groove wall of the insertion groove 11.
In the present embodiment, the following is described.
The conductive component 211 is used for electrically connecting with an external circuit, one end of the conductive component 21 is provided with a pin, and the pin penetrates through the fixing component 214 and extends to the outside;
the first seal ring 212 is used for sealing a gap between the conductive component 211 and the fixing component 214;
the second sealing ring 213 is used for sealing a gap between the fixing component 214 and the inner wall of the fixing shell 1;
the fixing component 214 is used for forming fixed connection with the groove wall of the inserting groove 11;
the insertion groove 11 is used for providing a placing space for the fixing component 214;
specifically, when the electrode assembly 2 is assembled, the first seal ring 212 is first mounted on the fixing assembly 214, then the conductive assembly 211 is mounted on the fixing assembly 214 and is tightly connected with the first seal ring 212, then the second seal ring 213 is sleeved on the outer peripheral side of the fixing assembly 214, at this time, the insertion portion 21 of the electrode assembly 2 is assembled, and after the insertion portion 21 is inserted into the insertion groove 11, the second seal ring 213 is in sealing connection with the groove wall of the insertion groove 11.
Further, the fixing assembly 214 includes a fixing cover 2141 and a third sealing ring 2142, the outer ring of the first sealing ring 21 is tightly and fixedly connected to the upper surface of the fixing cover 2141, the second sealing ring 213 is sleeved on the outer peripheral side of the fixing cover 2141, the conductive assembly 211 penetrates through the fixing cover 2141 and one end of the conductive assembly is embedded into the fixing cover 2141, one side of the third sealing ring 2142 is fixedly connected to the fixing cover 2141, and the other side of the third sealing ring 214 is tightly connected with the conductive assembly 21 1; the fixed cover 2141 is provided with a first embedded groove 2141, the third sealing ring 2142 is fixedly connected to the bottom wall of the first embedded groove 2141, and a part of the conductive assembly 21 is accommodated in the first embedded groove 2141; the fixed cover 2141 is provided with a second embedded groove 2141 2, the second embedded groove 2141 surrounds the first embedded groove 2141, the first sealing ring 212 is accommodated in the second embedded groove 2141 2 and is clung to the groove wall of the second embedded groove 2141, the conductive assembly 211 is provided with an embedded plate 2111, and the embedded plate 2111 is accommodated in the second embedded groove 2141 2 and is clung to the inner ring of the first sealing ring 21 2; an annular fixing groove 2141 is provided on the outer peripheral side of the fixing cover 2141, and a part of the second seal ring 213 is accommodated in the annular fixing groove 21413.
In the present embodiment, the following is described.
The fixed cover 2141 is used for fixedly connecting with the end part of the fixed shell 1;
the first embedded groove 2141 is configured to provide a space for the third seal ring 2142 to be placed, and also provides a space for the conductive component 211 to be placed;
the second insert groove 2141 is configured to provide a space for the first seal ring 212 to be placed, and also provide a space for the insert plate 2111 to be fixedly inserted;
the annular fixing groove 21413 is used for providing a sleeved space for the second sealing ring 213;
the third sealing ring 2142 is used for sealing a gap between the conductive component 211 and the bottom wall of the first embedded groove 21411;
the embedded plate 2111 is used to provide a structure for reinforcing the conductive member 211 to be fixed to the stationary cover 2141;
specifically, during assembly, the third sealing ring 214 is first placed in the first embedding groove 2141, then the first sealing ring 212 is placed in the second embedding groove 2141, then the conductive component 21 is inserted into the first embedding groove 2141 through the fixing cover 2141, the conductive component 21 is fixedly embedded into the second embedding groove 2141 2 by the embedding plate 2111, then the sealing connection between the conductive component 211 and the fixing component 214 is completed, and then the second sealing ring 213 is sleeved in the annular fixing groove 21413, and then the insertion portion 21 is used to insert into the insertion groove 11.
Further, the annular sealing cover assembly 3 includes a clamping cover 31 and an airtight ring 32, one side of the airtight ring 32 is fixedly connected to the inner side of the clamping cover 31, the other side of the airtight ring 32 shields the joint of the insertion portion 21 and the fixed shell 1 and forms a sealing connection, the outer ring of the clamping cover 31 is fixedly connected with one end of the fixed shell 1 in a clamping manner, and the inner ring of the clamping cover 31 is fixedly connected with the back of the insertion portion 21 in a clamping manner; the clamping cover 31 is provided with a first annular clamping position 311, one end of the fixed shell 1 is provided with a first annular clamping groove 12, and the first annular clamping position 31 is in clamping connection with the first annular clamping groove 12; the second annular clamping position 312 is arranged on the clamping cover 31, the second annular clamping groove 215 is arranged on the back of the insertion portion 21, and the second annular clamping position 312 is connected with the second annular clamping groove 215 in a clamping mode.
In the present embodiment, the following is described.
The clamping cover 31 is used for respectively clamping and connecting with the fixed shell 1 and the insertion part 21;
the first annular clamping position 311 is used for providing a structure for clamping the clamping cover 31, wherein the structure is in clamping connection with the first annular clamping groove 12 on the fixed shell 1;
the second annular clamping position 312 is used for providing a structure for clamping the clamping cover 31 and is in clamping connection with the second annular clamping groove 215 on the fixed shell 1;
the airtight ring 32 is made of a soft material and seals the gap between the insertion portion 21 and the inner wall of the insertion groove 11;
the first annular clamping groove 12 is used for forming clamping connection with the first annular clamping position 311;
the second annular clamping groove 215 is used for forming clamping connection with the second annular clamping position 312;
specifically, during assembly, the airtight ring 32 is fixed on the inner side wall of the clamping cover 31, then the external mechanical arm aligns the clamping cover 31 with the insertion portion 21 and forms a coaxial center with the fixing case 1, then the clamping cover 31 is pushed away towards the direction of the insertion portion 21, and after the clamping cover 31 forms a clamping connection with the fixing case 1 and the insertion portion 21 respectively, the airtight ring 32 simultaneously abuts against the insertion portion 21 and the fixing case 1, and a gap between the insertion portion 21 and the inner wall of the insertion groove 11 is blocked.
Of course, the present utility model can be implemented in various other embodiments, and based on this embodiment, those skilled in the art can obtain other embodiments without any inventive effort, which fall within the scope of the present utility model.
Claims (10)
1. The utility model provides a ceramic discharge tube of high gas tightness, its characterized in that includes fixed shell, two electrode subassembly, two annular seal lid subassemblies, two electrode subassembly respectively fixed connection in the both ends and the symmetry setting of fixed shell, electrode subassembly's one end is equipped with the insert portion, the insert portion extend to in the fixed shell and with the inner wall of fixed shell forms sealing connection, two annular seal lid subassemblies respectively with two electrode subassembly one-to-one and shelter from insert portion with the seam crossing of fixed shell and form sealing connection, the outer ring of annular seal lid subassembly with the fixed shell block is connected, the inner ring of annular seal lid subassembly with insert portion block connection.
2. The high-tightness ceramic discharge tube according to claim 1, wherein the insertion portion comprises a conductive component, a first sealing ring, a second sealing ring and a fixing component, the conductive component penetrates through the fixing component and is fixedly connected with the fixing component, an outer ring of the first sealing ring is tightly and fixedly connected with the fixing component, an inner ring of the first sealing ring is tightly and fixedly connected with one end of the conductive component, an inner ring of the second sealing ring is sleeved on the outer peripheral side of the fixing component, an outer ring of the second sealing ring is tightly connected with the inner wall of the fixing shell, and the fixing component is inserted at one end of the fixing shell.
3. The ceramic discharge tube of claim 2, wherein an insertion groove is formed at one end of the fixing case, the fixing assembly is accommodated in the insertion groove and abuts against a groove wall of the insertion groove, and the outer ring of the second sealing ring is tightly connected with the groove wall of the insertion groove.
4. The high-tightness ceramic discharge tube according to claim 3, wherein the fixing assembly comprises a fixing cover and a third sealing ring, an outer ring of the first sealing ring is tightly and fixedly connected to the upper surface of the fixing cover, the second sealing ring is sleeved on the outer peripheral side of the fixing cover, the conductive assembly penetrates through the fixing cover, one end of the conductive assembly is embedded into the fixing cover, one side of the third sealing ring is fixedly connected into the fixing cover, and the other side of the third sealing ring is tightly connected with the conductive assembly.
5. The highly airtight ceramic discharge tube according to claim 4, wherein a first fitting groove is formed in the fixing cover, the third seal ring is fixedly connected to a bottom wall of the first fitting groove, and a portion of the conductive member is accommodated in the first fitting groove.
6. The ceramic discharge tube of claim 5, wherein the fixing cover is provided with a second embedded groove, the second embedded groove surrounds the first embedded groove, the first sealing ring is accommodated in the second embedded groove and clings to the groove wall of the second embedded groove, the conductive component is provided with an embedded plate, and the embedded plate is accommodated in the second embedded groove and clings to the inner ring of the first sealing ring.
7. The highly airtight ceramic discharge tube according to claim 4, wherein an annular fixing groove is provided on an outer peripheral side of the fixing cover, and a part of the second seal ring is accommodated in the annular fixing groove.
8. The high-tightness ceramic discharge tube according to claim 1, wherein the annular sealing cover assembly comprises a clamping cover and an airtight ring, one side of the airtight ring is fixedly connected to the inner side of the clamping cover, the other side of the airtight ring shields the joint of the insertion part and the fixing shell and forms sealing connection, an outer ring of the clamping cover is fixedly connected with one end of the fixing shell in a clamping manner, and an inner ring of the clamping cover is fixedly connected with the back of the insertion part in a clamping manner.
9. The high-tightness ceramic discharge tube according to claim 8, wherein a first annular clamping position is arranged on the clamping cover, a first annular clamping groove is arranged at one end of the fixing shell, and the first annular clamping position is in clamping connection with the first annular clamping groove.
10. The high-tightness ceramic discharge tube according to claim 8, wherein a second annular clamping position is arranged on the clamping cover, a second annular clamping groove is arranged on the back of the insertion part, and the second annular clamping position is in clamping connection with the second annular clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223139559.1U CN219066758U (en) | 2022-11-25 | 2022-11-25 | Ceramic discharge tube with high air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223139559.1U CN219066758U (en) | 2022-11-25 | 2022-11-25 | Ceramic discharge tube with high air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219066758U true CN219066758U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223139559.1U Active CN219066758U (en) | 2022-11-25 | 2022-11-25 | Ceramic discharge tube with high air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219066758U (en) |
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2022
- 2022-11-25 CN CN202223139559.1U patent/CN219066758U/en active Active
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