CN112133556A - High leakproofness solid state capacitor with protective structure - Google Patents
High leakproofness solid state capacitor with protective structure Download PDFInfo
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- CN112133556A CN112133556A CN202011020480.XA CN202011020480A CN112133556A CN 112133556 A CN112133556 A CN 112133556A CN 202011020480 A CN202011020480 A CN 202011020480A CN 112133556 A CN112133556 A CN 112133556A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 81
- 230000001681 protective effect Effects 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009471 action Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000002861 polymer material Substances 0.000 description 4
- 229920001940 conductive polymer Polymers 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/06—Mountings specially adapted for mounting on a printed-circuit support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the technical field of solid capacitors and discloses a high-sealing solid capacitor with a protection structure. This high leakproofness solid state capacitor with protective structure, can play simple guard action when making the electric capacity body receive external force through movable sleeve and assaulting, strike the surface of baffle earlier when electric capacity body receives the impact, the baffle transmits the impact force for movable sleeve, movable sleeve receives to rotate when assaulting, the effect of unloading has been played, the surface of impact force direct action at electric capacity body has been avoided, and can be more smooth and easy when making movable sleeve atress rotate through the turning block, the device can play the effect of unloading when making electric capacity body receive external force and assaulting through a series of mechanical structure, the surface of impact force direct action electric capacity body has been avoided, can guarantee not receive the damage when making electric capacity body receive external force and assaulting.
Description
Technical Field
The invention relates to the technical field of solid-state capacitors, in particular to a high-sealing-performance solid-state capacitor with a protection structure.
Background
The solid state capacitors are all referred to as: the solid aluminum electrolytic capacitor has the greatest difference from the common capacitor in that different dielectric materials are adopted, the liquid aluminum capacitor dielectric material is electrolyte, and the solid capacitor dielectric material is conductive polymer material, in view of many problems of the liquid aluminum electrolytic capacitor, the solid aluminum electrolytic capacitor has been produced, since 20 th century and 90 th era, the aluminum electrolytic capacitor adopts the solid conductive polymer material to replace the electrolyte as a cathode, innovative development is achieved, the conductive capacity of the conductive polymer material is usually 2-3 orders of magnitude higher than that of the electrolyte, and ESR (equivalent series resistance) and temperature frequency characteristic can be greatly reduced when the solid aluminum electrolytic capacitor is applied to the aluminum electrolytic capacitor; and the polymer material has good processability and is easy to encapsulate, so that the chip development of the aluminum electrolytic capacitor is greatly promoted.
Solid-state capacitor all fixes through the welded mode when the installation, can be fixed solid-state capacitor's pin and circuit board each other during the welding, because modern technical problem, can have partial pin to be located the top of circuit board when solid-state capacitor welds, do not contact each other between condenser and the circuit board this moment, consequently can appear the condition that the condenser easily receives pin disconnection after external force strikes, so propose a high leakproofness solid-state capacitor who has protective structure and solve above-mentioned problem of proposing.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the high-sealing solid-state capacitor with the protection structure, which has the advantages of avoiding the disconnection of pins and the like, and solves the problem that the pins are easy to be broken under stress.
(II) technical scheme
In order to achieve the purpose of avoiding the disconnection of the pins, the invention provides the following technical scheme: a high-tightness solid capacitor with a protective structure comprises a circuit board, wherein pins extending to the lower part of the circuit board are inserted into the top of the circuit board, the top of each pin is fixedly connected with a capacitor body, an installation sleeve is sleeved outside the capacitor body, a threaded sleeve matched with the installation sleeve is sleeved outside the installation sleeve, a connecting sleeve positioned below the threaded sleeve is sleeved outside the installation sleeve, the bottom of the connecting sleeve is fixedly connected with a pressing plate connected with the circuit board, the left side and the right side of the installation sleeve are both fixedly connected with limit blocks extending to the inside of the connecting sleeve, the top of the pressing plate is fixedly connected with a pressure spring sleeved outside the connecting sleeve, the top of the pressure spring is fixedly connected with an installation ring contacted with the threaded sleeve, and the inside of the threaded sleeve is movably connected with a movable block extending to the outside of the threaded sleeve, the movable sleeve connected with the movable block is sleeved outside the threaded sleeve, and a baffle is fixedly connected outside the movable sleeve.
Preferably, the baffle is the rectangular plate, and the height of baffle is less than movable sleeve's height, and the baffle is total eight, eight the baffle is annular equidistance distribution.
Preferably, set up quantity on the telescopic surface of screw thread and be two the rotation groove, two the rotation groove is the symmetric distribution, and rotates the groove and be annular groove, the left and right sides the groove depth of rotating the inslot relative one side is greater than the left and right sides the groove depth of rotating inslot back of the body one side, the inside swing joint that rotates the groove has the movable block that extends to the rotation inslot outside.
Preferably, the movable block is total eight, eight the movable block divide into about two sets of, a set of four the movable block is annular equidistance and distributes, and the height that the movable block is close to capacitor body one side is greater than the height that the movable block kept away from capacitor body one side.
Preferably, limiting grooves are formed in the left side wall and the right side wall inside the connecting sleeve, and limiting blocks extending to the limiting grooves are fixedly connected to the left side wall and the right side wall of the mounting sleeve.
Preferably, the outer surface of the threaded sleeve is provided with six rotating grooves, the six rotating grooves are distributed in an annular equidistant mode, the rotating grooves are spherical rotating grooves, and the rotating grooves are located between the upper rotating groove and the lower rotating groove.
Preferably, the inside swing joint that rotates the recess has the turning block that extends to the rotation recess outside and contact with movable sleeve, and the turning block is spherical turning block, and the diameter of turning block is less than the diameter of rotating the recess, and the turning block is total six, six the turning block with six it is the one-to-one relation to rotate the recess.
Preferably, the pressure plate is an annular groove, the outer diameter of the pressure plate is larger than the inner diameter of the movable sleeve, and the inner diameter of the pressure plate is larger than the outer diameter of the mounting sleeve.
Preferably, the movable sleeve is a hollow sleeve, the height of the movable sleeve is greater than that of the threaded sleeve, and the inner diameter of the movable sleeve is greater than that of the threaded sleeve.
(III) advantageous effects
Compared with the prior art, the invention provides the high-tightness solid capacitor with the protection structure, which has the following beneficial effects:
1. this high leakproofness solid state capacitor with protective structure, can play simple guard action when making the electric capacity body receive external force through movable sleeve and assault, strike the surface of baffle earlier when electric capacity body receives the impact, the baffle transmits the impact force for movable sleeve this moment, movable sleeve receives and rotates when assaulting, thereby the effect of unloading has been played, the surface of impact force direct action at electric capacity body has been avoided, and can be more smooth and easy when making movable sleeve atress rotate through the turning block, the device makes electric capacity body receive external force through a series of mechanical structure and can play the effect of unloading when assaulting, thereby the effectual surface of impact force direct action at electric capacity body of having avoided, make electric capacity body can guarantee not receive the damage when receiving external force and assaulting.
2. The high-tightness solid capacitor with the protection structure has the advantages that the threaded sleeve moves downwards under the action of the installation sleeve by rotating the threaded sleeve, so that the pressure spring is compressed, the pressure spring applies downward elastic force to the pressure plate after being compressed, the pressure plate is tightly attached to the circuit board, the auxiliary support effect is realized by the connection sleeve and the pressure plate, the external force impact is avoided from directly acting on the surface of the capacitor body when the capacitor body is impacted by the external force, a certain protection effect is realized, the capacitor body and the pins can be ensured to be more stable when being connected with the circuit board by the connection sleeve and the pressure plate, the connection sleeve and the pressure plate play a supporting role when the capacitor body is impacted by the external force, the situation that the pins are disconnected when the capacitor body is impacted by the external force is avoided, and the device enables the capacitor body and the pins to be stably installed when being impacted by the external force through a series of mechanical structures, the damaged fracture of pin has been avoided.
Drawings
FIG. 1 is a schematic structural diagram of a high-hermeticity solid-state capacitor with a protective structure according to the present invention;
fig. 2 is an enlarged schematic view of a portion a of the structure of a high-hermeticity solid-state capacitor with a protective structure according to the present invention in fig. 1;
fig. 3 is an enlarged schematic diagram at B in fig. 1 of a high-hermeticity solid-state capacitor with a protective structure according to the present invention.
In the figure: the circuit board comprises a circuit board 1, pins 2, a capacitor body 3, a mounting sleeve 4, a threaded sleeve 5, a movable sleeve 6, a rotating groove 7, a rotating block 8, a rotating groove 9, a movable block 10, a baffle plate 11, a connecting sleeve 12, a limiting groove 13, a limiting block 14, a pressing plate 15, a pressure spring 16 and a mounting ring 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a high-sealing solid capacitor with a protection structure comprises a circuit board 1, pins 2 extending to the lower part of the circuit board 1 are inserted into the top of the circuit board 1, a capacitor body 3 is fixedly connected to the top of the pins 2, a mounting sleeve 4 is sleeved outside the capacitor body 3, a threaded sleeve 5 matched with the mounting sleeve 4 is sleeved outside the mounting sleeve 4, a rotating groove 7 is formed in the outer surface of the threaded sleeve 5, a rotating block 8 extending to the outside of the rotating groove 7 and contacting with a movable sleeve 6 is movably connected inside the rotating groove 7, the rotating block 8 is a spherical rotating block, the diameter of the rotating block 8 is smaller than that of the rotating groove 7, the number of the rotating blocks 8 is six, the six rotating blocks 8 correspond to the six rotating grooves 7 one by one, the total number of the rotating grooves 7 is six, the six rotating grooves 7 are distributed in an annular equidistant manner, the rotary groove 7 is a spherical rotary groove, the rotary groove 7 is positioned between the upper rotary groove 9 and the lower rotary groove 9, the outer surface of the threaded sleeve 5 is provided with two rotary grooves 9, the two rotary grooves 9 are symmetrically distributed, the rotary grooves 9 are annular grooves, the depth of the opposite side in the left rotary groove 9 and the right rotary groove 9 is greater than the depth of the back side in the left rotary groove 9 and the right rotary groove 9, the inner part of the rotary groove 9 is movably connected with movable blocks 10 extending to the outer part of the rotary groove 9, the movable blocks 10 are eight in total, the eight movable blocks 10 are divided into an upper group and a lower group, one group of four movable blocks 10 are distributed in an annular equal distance, the height of one side of the movable block 10 close to the capacitor body 3 is greater than the height of one side of the movable block 10 far away from the capacitor body 3, the outer part of the installation sleeve 4 is sleeved with a connecting sleeve 12 positioned below the, the left side wall and the right side wall of the mounting sleeve 4 are fixedly connected with limit blocks 14 extending into the limit grooves 13, the bottom of the connecting sleeve 12 is fixedly connected with a pressing plate 15 connected with the circuit board 1, the pressing plate 15 is an annular groove, the outer diameter of the pressing plate 15 is larger than the inner diameter of the movable sleeve 6, the inner diameter of the pressing plate 15 is larger than the outer diameter of the mounting sleeve 4, the left side wall and the right side wall of the mounting sleeve 4 are fixedly connected with limit blocks 14 extending into the connecting sleeve 12, the top of the pressing plate 15 is fixedly connected with a pressure spring 16 sleeved outside the connecting sleeve 12, the top of the pressure spring 16 is fixedly connected with a mounting ring 17 contacted with the threaded sleeve 5, the inside of the threaded sleeve 5 is movably connected with a movable block 10 extending out of the threaded sleeve 5, the outside of the threaded sleeve 5 is sleeved with the movable sleeve 6 connected with, the height of the movable sleeve 6 is greater than that of the threaded sleeve 5, the inner diameter of the movable sleeve 6 is greater than that of the threaded sleeve 5, the baffle 11 is fixedly connected to the outer portion of the movable sleeve 6, the baffle 11 is a rectangular plate, the height of the baffle 11 is less than that of the movable sleeve 6, the baffle 11 is eight in total, the eight baffles 11 are distributed in an annular equal distance mode, the capacitor body 3 can play a simple protection role when being impacted by external force through the movable sleeve 6, the surface of the baffle 11 is impacted firstly when the capacitor body 3 is impacted, the baffle 11 transmits impact force to the movable sleeve 6 at the moment, the movable sleeve 6 rotates when being impacted, accordingly, a discharging effect is achieved, impact force is prevented from directly acting on the surface of the capacitor body 3, the movable sleeve 6 can rotate more smoothly when being stressed through the rotating block 8, the device enables the capacitor body 3 to play a discharging effect when being impacted by external force through a series of mechanical structures, thereby effectively avoiding the impact force directly acting on the surface of the capacitor body 3, ensuring that the capacitor body 3 is not damaged when being impacted by external force, enabling the threaded sleeve 5 to move downwards under the action of the mounting sleeve 4 by rotating the threaded sleeve 5, further compressing the pressure spring 16, exerting a downward elastic force on the pressure plate 15 after the pressure spring 16 is compressed, further enabling the pressure plate 15 to be tightly attached to the circuit board 1, and playing a role of auxiliary support through the connecting sleeve 12 and the pressure plate 15, on one hand, avoiding the external force impact from directly acting on the surface of the capacitor body 3 when the capacitor body 3 is impacted by the external force, playing a certain protection role, ensuring that the capacitor body 3 and the pin 2 are more stable when being connected with the circuit board 1 through the connecting sleeve 12 and the pressure plate 15, and the connecting sleeve 12 and the pressure plate 15 play a role of supporting when the capacitor body 3 is impacted by the external force, the condition that disconnection appears when electric capacity body 3 receives external force to strike pin 2 has been avoided, and the device makes electric capacity body 3 and pin 2 can install stably when receiving external force to strike through a series of mechanical structure, has avoided the impaired fracture of pin 2.
To sum up, the high-tightness solid-state capacitor with the protection structure can play a simple protection role when the capacitor body 3 is impacted by external force through the movable sleeve 6, when the capacitor body 3 is impacted, the surface of the baffle 11 is impacted firstly, at the moment, the baffle 11 transmits the impact force to the movable sleeve 6, the movable sleeve 6 rotates when being impacted, so that the effect of unloading is achieved, the impact force is prevented from being directly acted on the surface of the capacitor body 3, the movable sleeve 6 can be more smoothly rotated when being stressed through the rotating block 8, the device can play a role of unloading when the capacitor body 3 is impacted by external force through a series of mechanical structures, so that the impact force is effectively prevented from being directly acted on the surface of the capacitor body 3, the capacitor body 3 can be ensured not to be damaged when being impacted by external force, and the threaded sleeve 5 can move downwards under the effect of the mounting sleeve 4 by rotating the threaded sleeve 5, thereby the pressure spring 16 is compressed, the pressure spring 16 applies a downward elastic force to the pressure plate 15 after being compressed, thereby the pressure plate 15 is tightly attached to the circuit board 1, and the pressure plate 15 and the connecting sleeve 12 play a role of auxiliary support, when the capacitor body 3 is impacted by external force, on one hand, the external force impact is prevented from directly acting on the surface of the capacitor body 3, a certain protection effect is achieved, and the connecting sleeve 12 and the pressure plate 15 can ensure that the capacitor body 3 and the pin 2 are more stable when being connected with the circuit board 1, when the capacitor body 3 is impacted by external force, the connecting sleeve 12 and the pressure plate 15 play a role of support, the condition that the pin 2 is disconnected when the capacitor body 3 is impacted by external force is avoided, the device enables the capacitor body 3 and the pin 2 to be stably installed when being impacted by external force through a series of mechanical structures, and the pin 2 is prevented from being damaged and broken, the problem of pin easy atress disconnection is solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A high leakproofness solid state capacitor with protective structure, includes circuit board (1), its characterized in that: the capacitor is characterized in that a pin (2) extending to the lower portion of the circuit board (1) is spliced at the top of the circuit board (1), a capacitor body (3) is fixedly connected to the top of the pin (2), a mounting sleeve (4) is sleeved outside the capacitor body (3), a threaded sleeve (5) matched with the mounting sleeve (4) is sleeved outside the mounting sleeve (4), a connecting sleeve (12) located below the threaded sleeve (5) is sleeved outside the mounting sleeve (4), a pressing plate (15) connected with the circuit board (1) is fixedly connected to the bottom of the connecting sleeve (12), limiting blocks (14) extending to the inside of the connecting sleeve (12) are fixedly connected to the left side and the right side of the mounting sleeve (4), a pressure spring (16) sleeved outside the connecting sleeve (12) is fixedly connected to the top of the pressing plate (15), a mounting ring (17) in contact with the threaded sleeve (5) is fixedly connected to the top of the pressure spring (16), the inner movable connection of the threaded sleeve (5) is provided with a movable block (10) extending to the outside of the threaded sleeve (5), the outside of the threaded sleeve (5) is sleeved with a movable sleeve (6) connected with the movable block (10), and the outside of the movable sleeve (6) is fixedly connected with a baffle (11).
2. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: baffle (11) are the rectangular plate, and the height of baffle (11) is less than the height of movable sleeve (6), and baffle (11) is total eight, eight baffle (11) are annular equidistance and distribute.
3. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: offer on the surface of threaded sleeve (5) quantity and be two rotation groove (9), two rotation groove (9) are the symmetric distribution, and rotate groove (9) and be annular groove, the left and right sides the groove depth that rotates groove (9) inslot relative one side is greater than the left and right sides the groove depth that rotates groove (9) inslot back of the body one side, the inside swing joint that rotates groove (9) have and extend to and rotate outside movable block (10) of groove (9).
4. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: the movable block (10) is total eight, eight the movable block (10) divide into about two sets ofly, a set of four the movable block (10) are annular equidistance and distribute, and the height that the movable block (10) is close to electric capacity body (3) one side is greater than the height that electric capacity body (3) one side was kept away from in movable block (10).
5. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: spacing recess (13) have all been seted up on the inside left and right sides wall of connecting sleeve (12), equal fixedly connected with extends to spacing stopper (14) inside spacing recess (13) on the left and right sides wall of installation sleeve (4).
6. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: the outer surface of the threaded sleeve (5) is provided with six rotating grooves (7), the rotating grooves (7) are distributed in an annular equal distance mode, the rotating grooves (7) are spherical rotating grooves, and the rotating grooves (7) are located between the upper rotating grooves (9) and the lower rotating grooves (9).
7. A high hermeticity solid state capacitor with a protective structure according to claim 6, wherein: the inside swing joint who rotates recess (7) has turning block (8) that extends to and rotate recess (7) outside and contact with movable sleeve (6), and turning block (8) are spherical turning block, and the diameter of turning block (8) is less than the diameter of rotating recess (7), and turning block (8) is total six, six turning block (8) and six rotate recess (7) and be the relation of one-to-one.
8. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: the pressing plate (15) is an annular groove, the outer diameter of the pressing plate (15) is larger than the inner diameter of the movable sleeve (6), and the inner diameter of the pressing plate (15) is larger than the outer diameter of the mounting sleeve (4).
9. A high-hermeticity solid-state capacitor with a protective structure according to claim 1, wherein: the movable sleeve (6) is a hollow sleeve, the height of the movable sleeve (6) is larger than that of the threaded sleeve (5), and the inner diameter of the movable sleeve (6) is larger than that of the threaded sleeve (5).
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| CN202011020480.XA CN112133556B (en) | 2020-09-25 | 2020-09-25 | High leakproofness solid state capacitor with protective structure |
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