CN204480969U - A kind of high-current supply relay - Google Patents
A kind of high-current supply relay Download PDFInfo
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- CN204480969U CN204480969U CN201520217755.7U CN201520217755U CN204480969U CN 204480969 U CN204480969 U CN 204480969U CN 201520217755 U CN201520217755 U CN 201520217755U CN 204480969 U CN204480969 U CN 204480969U
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- contact
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- conductive metal
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Abstract
The utility model discloses a kind of high-current supply relay, comprise shell, electromagnetic drive mechanism and electrical contact member, described shell comprises lower house, described electromagnetic drive mechanism comprises bobbin and is arranged at the movable magnetic conductive metal fuse in bobbin, wherein, described electromagnetic drive mechanism is provided with bakelite plate, described electrical contact member comprises the first static contact and the second static contact that are arranged on described bakelite plate both sides, and the movable contact spring be set on movable magnetic conductive metal fuse, described movable contact spring is provided with stainless steel brace, described stainless steel brace two ends are respectively equipped with the first moving contact and the second moving contact, below described first moving contact and the second moving contact, first static contact corresponding with it is provided with the first fixed contact and the second static contact is provided with the second fixed contact.The utility model adopts moving contact to contact fixed contact in advance, makes electric current shorting advance carry out arc extinguishing, and then and then movable contact spring contact static contact realizes without arc contacts; In the short time that movable contact spring is separated with static contact, namely moving contact also contacts fixed contact postpones to be separated, and plays extinguishing arc effect equally, with guarantee the prolongation in movable contact spring and static contact useful life, service behaviour reliably and safety.
Description
Technical field
The utility model relates to a kind of relay, is specifically related to a kind of high-current supply relay.
Background technology
Relay is a kind of electric control device, is when the change of input variable (energizing quantity) reaches regulation requirement, makes controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in electric output circuit.It has control system (also known as input circuit) and by the interactive relationship between control system (also known as output loop).Usually be applied in the control circuit of automation, it is actually the one " automatic switch " going to control big current running with small area analysis.Therefore play the effects such as automatic adjustment, safeguard protection, change-over circuit in circuit.Relay is the automatic switch element with isolation features, be widely used in remote control, remote measurement, communication, automatically control, electromechanical integration and power electronic equipment, be one of most important control element, relay generally has the induction mechanism (importation) that can reflect certain input variable (as electric current, voltage, power, impedance, frequency, temperature, pressure, speed, light etc.); Have can realize " leading to " to controlled circuit, actuator's (output) that " breaking " controls; Between the importation and output of relay, also have and coupling isolation is carried out to input variable, function treatment and intermediary agency's (drive part) that output is driven, relay in the course of the work, when high-voltage great-current occasion works often easy when closed produce electric arc, and high-temperature electric arc as easy as rolling off a log cause contact melt, oxidation cause carbon distribution, badly influence the useful life of relay.
In order to solve the problem, Chinese patent CN201320640229.2 discloses a kind of high-power direct current contactor, epicoele is provided with by chamber, lumen, cavity of resorption, the shell that the housing sealing iron-clad and the top cover being provided with two static contact components are formed, include the electrical contact member of static contact component and bridge type moving contact component and interior containing skeleton, coil, PCB control board, axle bush, the Electromagnetic Drive component of dynamic iron core and guiding driving shaft, guiding driving shaft is arranged with the Compress Spring up and down contributing to contact closure/disconnection action message, dynamic, fixed contact is filled with nitrogen in motion space, magnetic quenching permanent magnet is provided with on side, the side of fixed contact, the fixed contact body of rod is embedded in epoxy resin, make high-power direct current contactor excellent performance of the present utility model, reliable operation, 150A can be carried, the reliable on/off of 320VDC electric current, and compact conformation, volume is little, low in energy consumption, working life and the instructions for use meeting consuming device miniaturization can be guaranteed, there is very strong practicality.
Although the large voltage of this invention energy bearing great current, but electric arc still can produce time closed, and the mode of filling nitrogen must ensure that being in of relay seals completely, this manufactures when producing and brings inconvenience, relay continuous operation under sealing state simultaneously, inner flashing number of times too much can cause inner member and nitrogen temperature, and internal pressure raises, and there is potential safety hazard.
Chinese patent CN 201420037005.7 discloses a kind of D.C. contactor, comprise two contact points, contact chip and the reciprocating drive mechanism be located in seal casinghousing, described contact chip is limited on push rod one end, described reciprocal Drive Structure can drive described push rod reciprocating motion to be disconnected by connected sum while of described contact chip and two contact points, is also installed with a ceramic member at described contact chip on a side of described contact point.The contact chip of this D.C. contactor between two contacts adds a ceramic member, the length forcing electric arc to be expanded in identical space elongates original 2 ~ 3 times, just they are extinguished before electric arc is connected mutually, greatly improve the reverse make-break capacity of D.C. contactor, but this invention adopts the mode increasing gap to carry out extinguishing arc, running clearance is larger, overall volume is larger, do not pick up from the source producing electric arc simultaneously and carry out extinguishing arc, electric arc exists all the time, and bearing capacity is weak.
Current urgent need a kind of life-span is long, and reliable operation, can carry high-voltage large current, and to solve relay closes be the relay that generation arc erosion contact causes relay life to shorten.
Utility model content
The utility model is for the problems referred to above, and provide one to carry high-voltage large current, the life-span is long, reliable operation, without the need to worrying that the relay of energising reliability reduction is caused in arc erosion contact.
The utility model for the adopted technical scheme that solves the problem is: a kind of high-current supply relay, comprises shell, electromagnetic drive mechanism and electrical contact member, and described shell comprises lower house, described electromagnetic drive mechanism, be arranged in lower house, comprise bobbin and be arranged at the movable magnetic conductive metal fuse in bobbin, wherein, described electromagnetic drive mechanism is provided with bakelite plate, described electrical contact member comprises the first static contact and the second static contact that are arranged on described bakelite plate both sides, and the movable contact spring be set on movable magnetic conductive metal fuse, on described movable contact spring, level is provided with stainless steel brace, described stainless steel brace two ends are respectively equipped with the first moving contact and the second moving contact, below described first moving contact and the second moving contact, first static contact corresponding with it is provided with the first fixed contact and the second static contact is provided with the second fixed contact.
Above-mentioned stainless steel brace not only has the effect of connecting terminal On current, the cushioning effect of the generation that can also pump to electromagnetic drive mechanism, is unlikely to cause contact to be damaged owing to clashing into, thus extends the useful life of relay.
Further, the contact-making surface of described movable contact spring lower surface and the first static contact and the second static contact is provided with convex tendon.
Further, the distance L1 between described movable contact spring and static contact slightly larger than the distance L2 between first and second moving contact and first and second fixed contact, with ensure relay shift to an earlier date connected sum postpone disconnect.
The design of above-mentioned L1>L2, and the stainless steel brace that is provided with of above-mentioned movable contact spring level flexibility can realize connected sum and postpone, to reduce the galvano-cautery that movable contact spring and static contact produce because of arcing.
Further, also comprise a limiting bracket, described limiting bracket is provided with sliding ear, described limiting bracket arcuately, middle part is sheathed on movable magnetic conductive metal fuse top, and getting a foothold by the first rivet on bakelite plate in two ends, plays guide and limit effect to movable magnetic conductive metal fuse.
Further, described movable contact spring is provided with gathering sill, and described gathering sill stays small―gap suture to coordinate with the sliding ear on limiting bracket and slides, and sliding ear increases the contact area with gathering sill, thus reduces wearing and tearing, prevents movable contact spring from rotating skew simultaneously.
Further, described movable contact spring is set on movable magnetic conductive metal fuse by the insulation locating shim arranged in the central through hole on it, and the upper and lower both sides of described movable contact spring are respectively equipped with insulation spacer.
Further, described electrical contact member also comprises a buffer gear, described buffer gear comprises the buffer spring be arranged on insulation spacer, and described buffer spring is provided with spring retainer seat, and described spring retainer seat is limited on movable magnetic conductive metal fuse by jump ring.
Further, described buffer gear also comprises the return spring being arranged at and insulating on locating shim below movable contact spring, and described return spring lower support is on magnetic conductive metal brace, and top is closely against insulation locating shim.
Further, described electromagnetic drive mechanism also comprises magnetic conductive metal support, and described bobbin is arranged in described magnetic conductive metal support, and described bobbin top is provided with magnetic conductive metal brace, described bobbin is provided with coil, and described bobbin inner bottom part is provided with spacing metal magnetic core.
Described shell upper is also provided with upper cover, is provided with waterproof socket between described upper cover and lower house, and described waterproof socket is used for the power supply of connecting coil.
Described first static contact is extended with the first binding post, and the second static contact is extended with the second binding post, and described first binding post and the second binding post stretch out lower house, for connecting the constrained input of high-current supply.
Described first moving contact and the second moving contact, and the first fixed contact and the second fixed contact are tungsten point, play extinguishing arc effect.
Also comprise a mounting bracket, described mounting bracket one end fits is arranged on described lower house and is provided with in support installing groove, and one end is connected on fixture, for fixed relay.
The utility model has the advantages that:
1. the utility model adopts stainless steel shell fragment to coordinate tungsten point, makes tungsten point take the lead in contacting conducting and bearing electric arc when closed, and after electric arc disappears, the conducting of movable contact spring contact static contact, avoids movable contact spring and static contact suffers arc erosion; In the short time that movable contact spring is separated with static contact, namely moving contact also contacts fixed contact postpones to be separated, and is responsible for extinguishing arc effect equally, to reduce the galvano-cautery that movable contact spring and static contact produce because of arcing.
2. the utility model adopts limiting bracket to lead as secondary, and control activity magnetic conductive metal fuse, play the guiding role to movable magnetic conductive metal fuse, avoids Long-Time Service to cause movable magnetic conductive metal fuse frame amount because wearing and tearing;
3. the utility model movable contact spring is provided with convex tendon, can hold the impurity between movable contact spring and static contact on contact-making surface, ensures that contact is good.
Accompanying drawing explanation
Forming the part of this specification, showing preferred embodiment of the present utility model for understanding accompanying drawing of the present utility model further, and be used for principle of the present utility model is described together with specification.
Fig. 1 is complete section structural representation of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is the movable contact spring structural representation in the utility model;
Fig. 4 is partial enlarged drawing A of the present utility model;
Fig. 5 is the first local structural representation in the utility model;
Fig. 6 is the second local structural representation in the utility model;
Fig. 7 is the decomposition texture schematic diagram of office of the present utility model relay contacts component;
Fig. 8 is overall front view of the present utility model;
Fig. 9 is overall vertical view of the present utility model;
Figure 10 is the side direction mounting support structure schematic diagram in the utility model.
Wherein, Reference numeral:
10 is shell, 100 is lower house, 101 is mounting bracket, 102 is waterproof socket, 103 is upper cover, 104 is the first binding post, 105 is the second binding post, 106 is support installing groove, 107 is side direction installing rack, 20 is relay contacts component, 200 is electromagnetic drive mechanism, 201 is magnetic conductive metal support, 202 is bobbin, 203 is spacing metallic magnetic core, 204 is coil, 205 is magnetic conductive metal brace, 210 is bakelite plate, 211 is the first static contact, 212 is the first fixed contact, 213 is stainless steel brace, 214 is the first moving contact, 215 is limiting bracket, 216 is spring retainer seat, 217 is jump ring, 218 is movable magnetic conductive metal fuse, 219 is buffer spring, 220 is insulation spacer, 221 is insulation locating shim, 222 is return spring, 223 is movable contact spring, 224 is the second moving contact, 225 is the second fixed contact, 226 is the second static contact, 227 is convex tendon, 228 is gathering sill, 229 is through hole, 230 is sliding ear, 233 is the first rivet, 30 is buffer gear.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to figs. 1 to 10, a kind of high-current supply relay as shown in Figure 1, comprises shell 10, electromagnetic drive mechanism 200 and electrical contact member 20, and described shell 10 comprises lower house 100; Described electromagnetic drive mechanism 200, is arranged in lower house 100, comprises bobbin 202 and is arranged at the movable magnetic conductive metal fuse 218 in bobbin 202.
Described electromagnetic drive mechanism 200 is provided with bakelite plate 210, described electrical contact member 20 comprises the first static contact 211 and the second static contact 226 being arranged on described bakelite plate 210 both sides, and the movable contact spring 223 be set on movable magnetic conductive metal fuse 218, on described movable contact spring 223, level is provided with stainless steel brace 213, described stainless steel brace 213 is riveted on movable contact spring 223, described stainless steel brace 213 two ends are respectively equipped with the first moving contact 214 and the second moving contact 224, below described first moving contact 214 and the second moving contact 224, first static contact 211 corresponding with it is provided with the first fixed contact 212 and the second static contact 226 is provided with the second fixed contact 225.
The contact-making surface of described movable contact spring 223 lower surface and the first static contact 211 and the second static contact 226 is provided with convex tendon 227, contact can be made more tight reliable by convex tendon 227.
As shown in Figure 4, the distance L1 between described movable contact spring and static contact 211,226 slightly larger than the distance L2 between first and second moving contact 214,224 and first and second fixed contact 212,225, to guarantee that the connected sum in advance of moving contact and fixed contact postpones to disconnect.
As shown in Figure 5, also comprise a limiting bracket 215, described limiting bracket 215 is provided with sliding ear 230, described limiting bracket 215 arcuately, middle part is sheathed on movable magnetic conductive metal fuse 218 top, two ends are sagging to be riveted on bakelite plate 210 by the first rivet 233, to 218, movable magnetic conductive metal fuse guiding and position-limiting action.
Described movable contact spring 223 is provided with gathering sill 228, and described gathering sill 228 stays small―gap suture to coordinate with the sliding ear 230 on limiting bracket 215 and slides, and sliding ear 230 increases the contact area with gathering sill 228, thus reduces wearing and tearing; Prevent movable contact spring 223 from rotating skew simultaneously, cause loose contact.
Described movable contact spring 223 is set on movable magnetic conductive metal fuse 218 by the insulation locating shim 221 arranged in the central through hole 229 on it, and described movable contact spring about 223 both sides are respectively equipped with insulation spacer 220.
Described electrical contact member 20 also comprises a buffer gear 30, described buffer gear 30 comprises the buffer spring 219 be arranged on insulation spacer 220, described buffer spring 219 is provided with spring retainer seat 216, and described spring retainer seat 216 is limited on movable magnetic conductive metal fuse 218 by jump ring 217.
Described buffer gear 30 also comprises the return spring 222 be arranged at below movable contact spring 223 below insulation spacer 220, and described return spring 222 lower support is on magnetic conductive metal brace 205, and top is closely against insulation spacer 220, and described return spring 222 is turriform.
Described electromagnetic drive mechanism 200 also comprises magnetic conductive metal support 201, described bobbin 202 is arranged in described magnetic conductive metal support 201, described bobbin 202 top is provided with magnetic conductive metal brace 205, described bobbin 202 is provided with coil 204, and described bobbin 202 inner bottom part is provided with spacing metal magnetic core 203.
Described shell 10 top is also provided with upper cover 103, is provided with waterproof socket 102 between described upper cover 103 and lower house 100, and described waterproof socket 102 is for the power supply of connecting coil.
Described first static contact 211 is extended with the first binding post 104, and the second static contact 226 is extended with the second binding post 105, and described first binding post 104 and the second binding post 105 stretch out lower house 100, for connecting the constrained input of high-current supply.
Described first moving contact 214 and the second moving contact 224, and the first fixed contact 212 and the second fixed contact 225 are tungsten point; Described movable contact spring 223, first static contact 221 and the second static contact 226 are copper plate.
With reference to figure 8 to Figure 10, described lower house 100 both sides are provided with support installing groove 106, and described support installing groove 106 is provided with mounting bracket 101.
The conveniently installation position of Installation and adjustment relay, is provided with side direction installing rack 107 in described lower house 100 side, and described mounting bracket 101 can make the installation position of relay more diversified with side direction installing rack 107.
Specific works mode:
When electromagnetic drive mechanism 200 is energized, movable magnetic conductive metal fuse 218 moves downward, and synchronous buffer spring 219, movable contact spring 223, stainless steel brace 213 and the first moving contact 214 be riveted on stainless steel brace 213 and the second moving contact 224 of driving moves downward; When the first moving contact 214 on stainless steel brace 213 to contact in the short time that the first fixed contact 211 on the first static contact 211 and the second fixed contact 225 on the second static contact 226 contact with the second moving contact 224, electric arc can be produced, but can be absorbed by contact, because contact is tungsten point, be not easy high-temperature electric arc corrosion, the movable contact spring of relay contacts conducting with static contact further, buffer spring 219, to compress movable contact spring and static contact contact force simultaneous buffering adjusts evenly, makes movable contact spring contact with static contact and passes through with bearing great current;
When disconnecting relay, movable contact spring 223 takes the lead in disengaging first static contact 211 and the second static contact 226, and movable contact spring 223 is because stainless steel brace 213 is because natural resiliency, the first moving contact 214 above it and the second moving contact 224 is made still to contact the first static contact 211
On the first fixed contact 211 and the second fixed contact 225 on the second static contact 226; this just can be avoided because movable contact spring 223 departs from and produce arc erosion movable contact spring and static contact; when movable contact spring 223 departs to certain altitude; the first moving contact 214 on stainless steel brace 213 and the second moving contact 224 depart from the first fixed contact 211 on the first static contact 211 and the second fixed contact 225 on the second static contact 226; the electric arc now produced still is absorbed by tungsten point, thus protection movable contact spring 223 is not by arc erosion.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (11)
1. a high-current supply relay, comprise shell (10), electromagnetic drive mechanism (200) and electrical contact member (20), described shell (10) comprises lower house (100); described electromagnetic drive mechanism (200), be arranged in lower house (100), comprise bobbin (202) and be arranged at the movable magnetic conductive metal fuse (218) in bobbin (202), it is characterized in that: described electromagnetic drive mechanism (200) is provided with bakelite plate (210), described electrical contact member (20) comprises the first static contact (211) and the second static contact (226) that are arranged on described bakelite plate (210) both sides, and the movable contact spring (223) be set on movable magnetic conductive metal fuse (218), on described movable contact spring (223), level is provided with stainless steel brace (213), the first moving contact (214) and the second moving contact (224) is respectively equipped with at described stainless steel brace (213) two ends, described first moving contact (214) and the second moving contact (224) below first static contact (211) corresponding with it is provided with the first fixed contact (212) and the second static contact (226) is provided with the second fixed contact (225).
2. high-current supply relay according to claim 1, it is characterized in that, the contact-making surface of described movable contact spring (223) lower surface and the first static contact (211) and the second static contact (226) is provided with convex tendon (227).
3. high-current supply relay according to claim 1, it is characterized in that, distance L1 between described movable contact spring and static contact (211,226) slightly larger than the distance L2 between first and second moving contact (214,224) and first and second fixed contact (212,225), with ensure relay shift to an earlier date connected sum postpone disconnect.
4. high-current supply relay according to claim 1, it is characterized in that, also comprise a limiting bracket (215), described limiting bracket (215) is provided with sliding ear (230), described limiting bracket (215) arcuately, middle part is sheathed on movable magnetic conductive metal fuse (218) top, and getting a foothold and be connected on bakelite plate (210) in two ends, plays guiding and position-limiting action to movable magnetic conductive metal fuse (218).
5. high-current supply relay according to claim 4, it is characterized in that, described movable contact spring (223) is provided with gathering sill (228), and described gathering sill (228) stays small―gap suture to coordinate with the sliding ear (230) on limiting bracket (215) and slides.
6. high-current supply relay according to claim 5, it is characterized in that, described movable contact spring (223) is set on movable magnetic conductive metal fuse (218) by the insulation locating shim (221) arranged in the central through hole (229) on it, and described movable contact spring (223) is respectively equipped with insulation spacer (220) in both sides up and down.
7. high-current supply relay according to claim 1, it is characterized in that, described electrical contact member (20) also comprises a buffer gear (30), described buffer gear (30) comprises the buffer spring (219) be arranged on insulation spacer (220), described buffer spring (219) is provided with spring retainer seat (216), and described spring retainer seat (216) is limited on movable magnetic conductive metal fuse (218) by jump ring (217).
8. high-current supply relay according to claim 7, it is characterized in that, described buffer gear (30) also comprises the return spring (222) being arranged at movable contact spring (223) below insulation locating shim (220) below, described return spring (222) lower support is on magnetic conductive metal brace (205), and top is closely against insulation locating shim (220).
9. high-current supply relay according to claim 1, it is characterized in that, described electromagnetic drive mechanism (200) also comprises magnetic conductive metal support (201), described bobbin (202) is arranged in described magnetic conductive metal support (201), described bobbin (202) top is provided with magnetic conductive metal brace (205), described bobbin (202) is provided with coil (204), and described bobbin (202) inner bottom part is provided with spacing metal magnetic core (203).
10. according to high-current supply relay arbitrary in claim 1 ~ 9, it is characterized in that, described first moving contact (214) and the second moving contact (224), and the first fixed contact (212) is tungsten point with the second fixed contact (225).
11. high-current supply relays according to claim 10, it is characterized in that, also comprise a mounting bracket (101), described mounting bracket (101) one end fits is arranged on described lower house (100) and is provided with in support installing groove (106), one end is connected on fixture, for fixed relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217755.7U CN204480969U (en) | 2015-04-13 | 2015-04-13 | A kind of high-current supply relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217755.7U CN204480969U (en) | 2015-04-13 | 2015-04-13 | A kind of high-current supply relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204480969U true CN204480969U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520217755.7U Withdrawn - After Issue CN204480969U (en) | 2015-04-13 | 2015-04-13 | A kind of high-current supply relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204480969U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779119A (en) * | 2015-04-13 | 2015-07-15 | 温州北方电子机械有限公司 | High-current power supply relay |
| CN106229179A (en) * | 2016-08-03 | 2016-12-14 | 太仓美宅姬娱乐传媒有限公司 | A kind of electromagnetic switch using shift fork extinguishing arc |
| CN108447740A (en) * | 2018-06-02 | 2018-08-24 | 宁波赛特勒电子有限公司 | A kind of relay |
| CN114038711A (en) * | 2021-12-03 | 2022-02-11 | 化要武 | a relay |
| CN114521281A (en) * | 2019-10-15 | 2022-05-20 | 欧姆龙株式会社 | Electromagnetic relay |
-
2015
- 2015-04-13 CN CN201520217755.7U patent/CN204480969U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779119A (en) * | 2015-04-13 | 2015-07-15 | 温州北方电子机械有限公司 | High-current power supply relay |
| CN106229179A (en) * | 2016-08-03 | 2016-12-14 | 太仓美宅姬娱乐传媒有限公司 | A kind of electromagnetic switch using shift fork extinguishing arc |
| CN108447740A (en) * | 2018-06-02 | 2018-08-24 | 宁波赛特勒电子有限公司 | A kind of relay |
| CN108447740B (en) * | 2018-06-02 | 2024-04-19 | 宁波赛特勒电子有限公司 | Relay |
| CN114521281A (en) * | 2019-10-15 | 2022-05-20 | 欧姆龙株式会社 | Electromagnetic relay |
| US12080500B2 (en) | 2019-10-15 | 2024-09-03 | Omron Corporation | Electromagnetic relay with seal between cantact case and drive device |
| CN114038711A (en) * | 2021-12-03 | 2022-02-11 | 化要武 | a relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20171114 |
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| AV01 | Patent right actively abandoned |