CN207410314U - A kind of high-voltage pulse generator with low jitter degree - Google Patents
A kind of high-voltage pulse generator with low jitter degree Download PDFInfo
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- CN207410314U CN207410314U CN201721437834.4U CN201721437834U CN207410314U CN 207410314 U CN207410314 U CN 207410314U CN 201721437834 U CN201721437834 U CN 201721437834U CN 207410314 U CN207410314 U CN 207410314U
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- switch
- triggering
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- gas switch
- gas
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Abstract
The utility model discloses a kind of high-voltage pulse generators with low jitter degree, including outer barrel and cover board, the identical gas switch one of structure, gas switch two, earth plate, center connection sheet are installed in the cavity formed in outer barrel with cover board, the center connection sheet is arranged between gas switch one and gas switch two, the triggering connecting rod of gas switch one passes through ground resistance A connections center connection sheet, center connection sheet passes through ground resistance C connection earth plates by the triggering connecting rod of ground resistance B connections gas switch two, the triggering connecting rod of gas switch two；The impulse generator delay jitter of the utility model is small, hits that probability is small, and the operation is stable, operating voltage is adjustable certainly, has very strong antijamming capability.
Description
Technical field
The utility model is related to technical field of pulse power, and in particular to a kind of high-voltage pulse with low jitter degree occurs
Device.
Background technology
High-voltage pulse generator is a kind of common instrument, is had a wide range of applications in scientific research, is as triggering
System is even more important role in large-scale pulse power device.High-voltage pulse generator is mainly by high voltage power supply, energy storage part
Divide, switch and control circuit form.The device of wherein core the most is switch, and the breakdown characteristics of switch send out entire high-voltage pulse
Raw system is of crucial importance.
Utility model content
The purpose of this utility model is to provide a kind of high-voltage pulse generators with low jitter degree, solve existing height
Pressing impulse generator, its delay jitter is excessive at work, the problem of stability is poor.
The utility model is achieved through the following technical solutions：
A kind of high-voltage pulse generator with low jitter degree, including outer barrel and cover board, is formed in outer barrel and cover board
The identical gas switch one of structure, gas switch two, earth plate, center connection sheet, the center connection sheet are installed in cavity
It is arranged between gas switch one and gas switch two, the triggering connecting rod of gas switch one passes through ground resistance A connections center
Connection sheet, center connection sheet pass through the triggering connecting rod of ground resistance B connections gas switch two, the triggering connection of gas switch two
Bar passes through ground resistance C connection earth plates；
The gas switch one or gas switch two include forming the switch positive electrode of airtight chamber, switch negative electrode and open
Insulating cylinder is closed, switch positive electrode is raised in ellipticity to offside with switch negative electrode and is provided with switch triggering therebetween
Pole, the both ends of the switch triggering pole are separately fixed on the boss on the inside of switch insulation cylinder and trigger electrode pressure ring, switch triggering
Pole both ends form gap between switch positive electrode and switch negative electrode to central concave and respectively in ellipticity, the gap with
It the depression profile variation at switch triggering pole both ends and is gradually reduced towards the direction close to switch triggering pole center, the switch touches
The center of hair pole is also set up there are one round hole, and switch gas nozzle, triggering connecting rod, the triggering are provided on switch insulation cylinder
Connecting rod is fixed on by insulating nut on switch insulation cylinder.The main improvements of the utility model are with low using two
The gas switch of shake, i.e. structure are identical and are symmetrical structure gas switch one, gas switch two, and the gas of the utility model is opened
Structure is closed, greatly reduces the spacing between positive and negative electrode compared with prior art so that switch conduction times are shorter, have relatively low
Delay jitter；Based on Marx structures impulse generator is caused to switch breakdown voltage at work and more stablize again；Again by connecing
The ground connection of ground resistance C so that switch triggering pole keeps stable ground potential during charging, and switch is more stablized.
The problem of solving existing high-voltage pulse generator with this its delay jitter be excessive at work, and stability is poor.
Principle of the gas switch structure with low delay jitter is as follows：Positive electrode is switched with switch negative electrode to offside
It is arranged in ellipticity protrusion, while by switch triggering pole between switch positive electrode and switch negative electrode, switch triggering pole both ends
In ellipticity to central concave, change with the depression profile at switch triggering pole both ends, switch triggering pole is opened with described two
Gap between powered-down pole is gradually reduced towards the direction close to switch triggering pole center, and such switch triggering pole is provided with round hole
Spoke side infinitely close to switch positive electrode and the triggering end for switching negative electrode, the gap of least significant end reaches minimum；Above knot
Structure so that electric field distribution is more uniform between switch electrode in charging process, round hole and the switch positive electricity at switch triggering pole center
Gap is smaller compared with prior art for the ring radiation passage that pole, the ellipticity protrusions match of switch negative electrode are formed so that from
Breakdown voltage deviation smaller works under certain safety coefficient from hitting probability smaller, and discharge performance is stablized also therefore more, can with this
Reach lower delay jitter.
Capacitor group one, capacitor group two, capacitor group three, electricity are additionally provided in the cavity formed in outer barrel and cover board
Container group four, wherein capacitor group one, gas switch one, capacitor group two, capacitor group three, gas switch two, capacitor group
Four are in turn connected to form circuit；Output cable is additionally provided on the cover board, and the capacitor group one connects defeated by output chip
Go out cable, output chip and by big ground resistance connecting cover plate, cover board is connected with earth plate by connecting rod and is grounded simultaneously, institute
The capacitor group two stated is connected with capacitor group three by center connection sheet, the capacitor group four connection earth plate.Into one
Step, the utility model is connected with capacitor group four in parallel on earth plate, and gas switch is connected in capacitor group four
Two, capacitor group three in parallel is connected on gas switch two, is connected with simultaneously by center connection sheet in capacitor group three
The capacitor group two of connection, center connection sheet connect earth plate with ground resistance C by ground resistance B, connect in capacitor group two
Gas switch one is connected to, capacitor group one in parallel is connected on gas switch one, capacitor group one connects output chip, output
The excessive ground resistance of piece a-road-through is connected on the cover board, all the way by being exported on output cable.Pass through more than structure capacitance
It is overlayed successively on earth plate with switch, charging resistor, magnet ring, ground resistance and tracheae are distributed in vacant between connecting rod
Position, it is such to be laid out comparable compact and reasonable, further save the space of high-voltage pulse generator.
Magnet ring is additionally provided in the cavity formed in outer barrel and cover board, is provided with triggering insulating base on the cover board, is triggered
Triggering input terminal is fixed on insulating base, the triggering input terminal is coaxial configuration, and inside and outside core connects the primary of magnet ring respectively
Connecting line X ends and first concatenation connection Y ends, the secondary concatenation connection X ends of the magnet ring are connected to gas switch two by triggering resistance
Triggering connecting rod on, the secondary concatenation connection Y ends of magnet ring are connected on earth plate.Further, trigger input terminal and cover board it
Between by triggering insulating base realize insulation so that prime, which triggers, will not be subject to the earth potential interference of the impulse generator；It will triggering
Input terminal is connected with trigger electrode by transformer, and is connected not altogether so that low-pressure end will not be subject to high-pressure side ground potential shadow
It rings, thus with strong anti-earth potential interference ability, transformer is step-up transformer, adds trigger voltage, makes the triggering of switch
More stablize.
Positive charging pile is additionally provided on the cover board, bears charging pile, and the switch of the gas switch one and gas switch two is just
Electrode connects positive charging pile, switch negative electrode by the negative negative charging pile of charging resistor connection by positive charging resistor.This reality
Increase charging resistor between gas switch and charging pile compared with prior art with new, can effectively prevent electric stake when excessively electric,
Electric current crosses the breakdown of senior general's gas switch.
Preferably, it is additionally provided with insulating cylinder on the outer tube inner wall.The utility model metal outer cylinder and cover board are formed
Confined space effectively external electromagnetic interference can be shielded, be sticked by the inner wall make-up in outer barrel and put one layer of insulating cylinder, into one
Step improves the anti-electromagnetic interference capability of impulse generator.
The utility model compared with prior art, has the following advantages and advantages：
1st, a kind of high-voltage pulse generator with low jitter degree of the utility model, employs that two new, structure is identical
And be symmetrical structure gas switch one, gas switch two, by setting new gas switch structure, switch positive electrode is negative with switch
Electrode is raised in ellipticity to offside, while switch triggering pole is arranged between switch positive electrode and switch negative electrode, opens
Trigger electrode both ends are closed in ellipticity to central concave, so that the spoke side of switch triggering pole infinitely close to switch positive electrode with
The triggering end of negative electrode is switched, the round hole at switch triggering pole center is dashed forward with switching the ellipticity of positive electrode, switch negative electrode
It rises and cooperatively forms ring radiation passage, compared with prior art, the gap of the radiation channel is smaller so that self-breakdown voltage deviation
Smaller, switch conduction times are shorter, worked under certain safety coefficient from probability smaller is hit, and discharge performance is also therefore more stable,
It can reach lower delay jitter with this；
2nd, a kind of high-voltage pulse generator with low jitter degree of the utility model, capacitance and switch overlay ground connection successively
On plate, charging resistor, magnet ring, ground resistance and tracheae are distributed in the vacant position between connecting rod, and such layout is suitable
Compact and reasonable, further save the space of high-voltage pulse generator；
3rd, a kind of high-voltage pulse generator with low jitter degree of the utility model is triggered and passed through between input terminal and cover board
It triggers insulating base and realizes insulation so that prime triggers the earth potential interference that will not be subject to the impulse generator；Input terminal will be triggered
It being connected, and connected not altogether by transformer with trigger electrode so that low-pressure end will not be influenced be subject to high-pressure side ground potential, thus
With strong anti-earth potential interference ability, transformer is step-up transformer, adds trigger voltage, and the triggering for making switch is more steady
It is fixed；
4th, a kind of high-voltage pulse generator with low jitter degree of the utility model, is formed by metal outer cylinder and cover board
Confined space and be sticked in the inner wall make-up of outer barrel and put one layer of insulating cylinder, ensure that the utility model has the strong anti-external world
Electromagnetic interference capability.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part does not form the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model high-voltage pulse generator equivalent circuit diagram；
Fig. 2 is the utility model high-voltage pulse generator new construction switch structure diagram；
Fig. 3 is the utility model high-voltage pulse generator top view；
Fig. 4 is sectional view along A-A in Fig. 3；
Fig. 5 is B-B direction sectional view in Fig. 3.
Mark and corresponding parts title in attached drawing：
1- switchs positive electrode, 2- switch gas nozzles, 3- switch insulation cylinders, 4- switch triggerings pole, 5- triggering connecting rods, 6- insulation
Nut, 7- trigger electrode pressure rings, 8- switch negative electrodes, 9- connecting rods, the positive charging piles of 10-, 11- plug cocks, 12- air admission holes, 13-, which is born, to be filled
Electric stake, 14- output cable fixed seats, 15- ventholes, 16- cover boards, 17- triggering insulating bases, 18- output cables, 19- output chips,
20- capacitors group one, 21- air outlet pipes, 22- gas switch one, 23- switch ventholes, 24- capacitors group two, the connection of 25- centers
Piece, 26- capacitors group three, 27- bear charging resistor, 28- gas switch two, 29- capacitors group four, 30- air inlet pipe, 31- switches
Air admission hole, the positive charging resistors of 32-, 33- triggering input terminals, the big ground resistances of 34-, just concatenation connection X ends, 36- primary connect 35-
Line Y ends, 37- ground resistances A, 38- outer barrel, 39- magnet rings, 40- concatenation connection X end, 41- triggering resistance, 42- concatenation connection
Y ends, 43- insulating cylinders, 44- ground resistances B, 45- ground resistance C, 46- earth plate.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Fig. 1~5, a kind of high-voltage pulse generator with low jitter degree of the utility model, including 38 He of outer barrel
Cover board 16 is equipped with the identical gas switch 1 of structure, gas switch two in the cavity formed in outer barrel 38 with cover board 16
28th, earth plate 46, center connection sheet 25, the center connection sheet 25 be arranged on gas switch 1 and gas switch 2 28 it
Between, by the ground resistance A37 connections center connection sheet 25 of 10W/1M Ω, center connects the triggering connecting rod 5 of gas switch 1
The triggering connecting rod 5 for the ground resistance B44 connections gas switch 2 28 that contact pin 25 passes through 10W/1M Ω, gas switch 2 28 touch
Send out ground resistance C45 connection earth plate 46 of the connecting rod 5 by 10W/1M Ω；The gas switch 1 or gas switch 2 28
Switch positive electrode 1, switch negative electrode 8 and switch insulation cylinder 3 including forming airtight chamber, switch positive electrode 1 and switch negative electricity
Spacing between pole 8 is smaller, is 2mm, and switch positive electrode 1 is raised in ellipticity to offside with switch negative electrode 8 and in the two
Between be provided with switch triggering pole 4, the both ends of the switch triggering pole 4 be separately fixed at 3 inside of switch insulation cylinder boss and
On trigger electrode pressure ring 7,4 both ends of switch triggering pole are in ellipticity to central concave and respectively with switching positive electrode 1 and switch negative electricity
Gap is formed between pole 8, the gap changes and with the depression profile at 4 both ends of switch triggering pole towards close to switch triggering pole 4
The direction at center is gradually reduced, and the center of the switch triggering pole 4 is also set up there are one round hole, is set on switch insulation cylinder 3
Switch gas nozzle 2, triggering connecting rod 5 are equipped with, the triggering connecting rod 5 is fixed on by insulating nut 6 on switch insulation cylinder 3.Choosing
By the use of SF6 gases as working gas, under an atmospheric pressure, self-breakdown voltage is about 8.5kV, and deviation is no more than ± 0.3kV, work
To stablize, spacing is smaller between positive and negative electrode, may be such that switch breakdown voltage is more stablized, while has relatively low delay jitter,
For ± 2ns.
Capacitor group 1, capacitor group 2 24, capacitance are additionally provided in the cavity formed in outer barrel 38 and cover board 16
Device group 3 26, capacitor group 4 29, wherein capacitor group 1, gas switch 1, capacitor group 2 24, capacitor group three
26th, gas switch 2 28, capacitor group 4 29 are in turn connected to form circuit；Output cable 18, defeated is additionally provided on cover board 16
Go out cable anchor block 14, the capacitor group 1 connects output cable 18 by output chip 19, and output chip 19 simultaneously passes through big
34 connecting cover plate 16 of ground resistance, cover board 16 are connected with earth plate 46 by connecting rod 9 and are grounded simultaneously, the capacitor group
2 24 are connected with capacitor group 3 26 by center connection sheet 25, the capacitor group 4 29 connection earth plate 46.In outer barrel
38 and the cavity that is formed of cover board 16 in be additionally provided with magnet ring 39, triggering insulating base 17, triggering insulation are provided on cover board 16
Triggering input terminal 33 is fixed on seat 17, the triggering input terminal 33 is coaxial configuration, and inside and outside core connects magnet ring 39 respectively
First concatenation connection X ends 35 and first concatenation connection Y ends 36, secondary concatenation connection X ends 40 the touching by 10W/50 Ω of the magnet ring 39
Power generation resistance 41 is connected in the triggering connecting rod 5 of gas switch 2 28, and the secondary concatenation connection Y ends 42 of magnet ring 39 are connected to earth plate
On 46.
It triggers and insulation is realized by insulating base between input terminal and cover board so that prime triggering will not be subject to the pulse generation
The earth potential interference of device, transformer are step-up transformer, add trigger voltage, and the triggering of switch is made more to stablize.In cover board
The switch positive electrode 1 of positive charging pile 10, negative charging pile 13, the gas switch 1 and gas switch 2 28 is additionally provided on 16
Positive charging pile 10, switch negative electrode 8 are connected by the negative negative charging pile 13 of the connection of charging resistor 27 by positive charging resistor 32.
It is additionally provided with air admission hole 12 and venthole 15 on cover board 16, the switch gas nozzle 2 on switch insulation cylinder 3 divides to switch suction nozzle 31
With switch outlet nozzle 32, switch suction nozzle 31 connects air admission hole 12 by air inlet pipe 30, and switch outlet nozzle 32 passes through air outlet pipe 21
Connect venthole 15.More than structure so that the tracheae of switch one and switch two is in parallel, and the gas pressure of two switches is allowed to be consistent,
Stability higher.Oil filler point and plug cock matched with oil filler point 11 are provided on the cover board.
The operation principle of the utility model is：Capacitor group 2 24 and capacitor group 4 29 are filled by positive charging resistor 32
+ 8kV fills -8kV by negative charging resistor 27 to capacitor group 1 and capacitor group 3 26.When not applying external trigger, two masters
The switch triggering pole 4 of switch is in zero potential.When triggering 33 voltage magnitude about -5kV of input terminal, the liter that is made up of magnet ring 39
Pressure transformer is applied on the switch triggering pole 4 of gas switch 2 28, due to switch triggering pole 4 and switch 1 potential pole of positive electrode
Property on the contrary, more than SF6 gases breakdown voltage, make switch triggering pole 4 and switch positive electrode 1 conducting electric discharge, subsequent gas switch
The one 22 self breakdown electric discharges under overvoltage, capacitor voltage at both ends difference cannot be mutated, so that between output chip 19 and earth plate 46
Potential difference reach 32kV.It is exported using output cable, on the output since open circuit reflects, forms the high pressure of 64kV
Pulse exports.
Output pulse width：T=2L/v,
L is the total length of output cable in above formula, and output cable grows 10 meters in embodiment.V for voltage wave in the cable
Spread speed, about 0.2m/ns, theoretically pulsewidth is about 100ns.
Above-described specific embodiment, the purpose of this utility model, technical solution and advantageous effect have been carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of high-voltage pulse generator with low jitter degree, including outer barrel (38) and cover board (16), which is characterized in that outside
Cylinder (38) gas switch one (22) identical with structure is equipped in the cavity that cover board (16) is formed, gas switch two (28),
Earth plate (46), center connection sheet (25), the center connection sheet (25) are arranged on gas switch one (22) and gas switch two
(28) between, the triggering connecting rod (5) of gas switch one (22) by ground resistance A (37) connection center connection sheets (25), in
Heart connection sheet (25) passes through the triggering connecting rod (5) of ground resistance B (44) connection gas switch two (28), gas switch two (28)
Triggering connecting rod (5) pass through ground resistance C (45) connection earth plates (46)；
The gas switch one (22) or gas switch two (28) include forming the switch positive electrode (1) of airtight chamber, switch and bear
Electrode (8) and switch insulation cylinder (3), switch positive electrode (1) are raised in ellipticity to offside with switch negative electrode (8) and two
Switch triggering pole (4) is provided between person, the both ends of the switch triggering pole (4) are separately fixed on the inside of switch insulation cylinder (3)
Boss and trigger electrode pressure ring (7) on, switch triggering pole (4) both ends are in ellipticity to central concave and respectively with switching positive electrode
(1) gap is formed between switch negative electrode (8), the gap changes simultaneously with the depression profile at switch triggering pole (4) both ends
It is gradually reduced towards close to the direction at switch triggering pole (4) center, the center of the switch triggering pole (4) also sets up that there are one circular
Hole, is provided with switch gas nozzle (2), triggering connecting rod (5) on switch insulation cylinder (3), and the triggering connecting rod (5) passes through insulation
Nut (6) is fixed on switch insulation cylinder (3).
2. a kind of high-voltage pulse generator with low jitter degree according to claim 1, which is characterized in that in outer barrel
(38) and in the cavity that is formed of cover board (16) capacitor group one (20), capacitor group two (24), capacitor group three are additionally provided with
(26), capacitor group four (29), wherein capacitor group one (20), gas switch one (22), capacitor group two (24), capacitor group
Three (26), gas switch two (28), capacitor group four (29) are in turn connected to form circuit；Output is additionally provided on cover board (16)
Cable (18), the capacitor group one (20) connect output cable (18) by output chip (19), and output chip (19) simultaneously passes through
Big ground resistance (34) connecting cover plate (16), cover board (16) are connected with earth plate (46) by connecting rod (9) and are grounded simultaneously, institute
The capacitor group two (24) stated is connected with capacitor group three (26) by center connection sheet (25), the capacitor group four (29)
Connect earth plate (46).
3. a kind of high-voltage pulse generator with low jitter degree according to claim 1, which is characterized in that in outer barrel
(38) and in the cavity that is formed of cover board (16) magnet ring (39) is additionally provided with, triggering insulating base is provided on cover board (16)
(17), to trigger and triggering input terminal (33) is fixed on insulating base (17), the triggering input terminal (33) is coaxial configuration, inside and outside
Core connects the first concatenation connection X ends (35) of magnet ring (39) and first concatenation connection Y ends (36), the secondary cascade of the magnet ring (39) respectively
Wiring X ends (40) are connected to by triggering resistance (41) in the triggering connecting rod (5) of gas switch two (28), time of magnet ring (39)
Concatenation connection Y ends (42) are connected on earth plate (46).
4. a kind of high-voltage pulse generator with low jitter degree according to claim 1, which is characterized in that in cover board
(16) it is additionally provided with positive charging pile (10), negative charging pile (13) on, the gas switch one (22) and gas switch two (28)
It switchs positive electrode (1) and positive charging pile (10), switch negative electrode (8) is connected by the negative electricity that charges by positive charging resistor (32)
Hinder the negative charging pile (13) of (27) connection.
5. a kind of high-voltage pulse generator with low jitter degree according to claim 1, which is characterized in that described is outer
Insulating cylinder (43) is additionally provided on cylinder (38) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437834.4U CN207410314U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage pulse generator with low jitter degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437834.4U CN207410314U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage pulse generator with low jitter degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207410314U true CN207410314U (en) | 2018-05-25 |
Family
ID=62317605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721437834.4U Expired - Fee Related CN207410314U (en) | 2017-11-01 | 2017-11-01 | A kind of high-voltage pulse generator with low jitter degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207410314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659291A (en) * | 2017-11-01 | 2018-02-02 | 中国工程物理研究院流体物理研究所 | A kind of high-voltage pulse generator with low jitter degree |
-
2017
- 2017-11-01 CN CN201721437834.4U patent/CN207410314U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659291A (en) * | 2017-11-01 | 2018-02-02 | 中国工程物理研究院流体物理研究所 | A kind of high-voltage pulse generator with low jitter degree |
| CN107659291B (en) * | 2017-11-01 | 2024-02-06 | 中国工程物理研究院流体物理研究所 | High-voltage pulse generator with low jitter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20191101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |