CN204857527U - Fine motion inductive switch - Google Patents
Fine motion inductive switch Download PDFInfo
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- CN204857527U CN204857527U CN201520503884.2U CN201520503884U CN204857527U CN 204857527 U CN204857527 U CN 204857527U CN 201520503884 U CN201520503884 U CN 201520503884U CN 204857527 U CN204857527 U CN 204857527U
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- movable contact
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- contact flat
- fine motion
- connecting rod
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Abstract
The utility model relates to a bestow pressure and trigger switch's fine motion inductive switch. A fine motion inductive switch, includes casing, touch switch and touches the briquetting, touch briquetting one side and be equipped with two blocks of pterygoid laminas, through two pterygoid lamina activity hinge joint outside the casing, the touch switch includes: firstly participate in, the second is participated in, activity contact, elasticity reset subassembly and connecting rod, the second is participated in the upper end and is established the transversely portion of bending, the stiff end joint of activity contact is on first upper portion of participating in, and the below of the portion of transversely bending is located to the free end of activity contact, is equipped with the contraction section of bending of an uplift on the activity contact, the connecting rod outer end articulates on touching the briquetting, and connecting rod middle part articulates in the casing, and the movable contact below parallel connection movable contact spring of taking over a job is stretched into to connecting rod the inner, elasticity resets subassembly upper end to be connected at casing top side inner wall, and the middle part at the activity contact is fixed to the lower extreme. Not only novel structure is reasonable for it, and stability is good, triggers and responds to the sensitivity, and it is high to be difficult for appearing spurious triggering and security.
Description
Technical field
The utility model belongs to sensor field, particularly a kind of fine motion inductive switch bestowing pressure and trigger switch.
Background technology
At present, fine motion inductive switch all generally uses in a lot of field, and especially in a lot of control system, it is as transducer, and again as executive component, therefore its sensitivity, stability and fail safe are all extremely important.
At present, rely on and bestow less pressure and the fine motion inductive switch that triggers has following deficiency:
When one, driving the parts of fine motion inductive switch more, needing higher build-up tolerance when assembling between each parts, causing assembling difficulty and less stable;
Although two, induction is sensitive, induced signal and open or close signal and usually can not accurately identify, is therefore difficult in access control system.
Three, existing fine motion inductive switch generally has spring to realize switch at the annex of trigger member, spring is with pressure oscillation linear extension or compression, not only can be unstable when vibrating, but also it is easily tired and change, therefore poor stability, the situations such as the dynamic or loose contact of easy generation false touch, result of use is poor.
Four, existing fine motion inductive switch not only lacks overtemperature protection, and the fail safe of self is not high, and internal structure is complicated, and layout is too compact, even if arrange overheating protection circuit, also cause its overall structure too complex, cost is high.
Five, additional overheating protection circuit utilizes fuse usually, and the excessive just fusing of primary current, cause and once destroy and will keep in repair, useful life is short.
Therefore existing fine motion inductive switch needs to improve.
Utility model content
For defect and the deficiency of prior art, technical problem to be solved of the present utility model is to provide a kind of novel structure and reasonable, good stability, not easily occur false triggering, and fail safe is higher; Meanwhile, trigger and respond to sensitive and open at every turn and close the fine motion inductive switch that all can be exported by induced signal.
For realize solve above-mentioned technical problem to be solved, the utility model by the following technical solutions:
A kind of fine motion inductive switch, comprises housing, is arranged on the touch switch in housing and touches briquetting; Touch briquetting side and be provided with two blocks of wing plates, two symmetrical intervals of wing plate are arranged; What the distal medial of described wing plate was provided with T-shaped links end, and housing both sides are respectively equipped with holds hinged short slot with described linking; Touch briquetting and be movably articulated in hull outside by the end that links of its far-end, and connect touch switch; Described touch switch comprises: the first pin, the second pin, movable contact flat, elastic reset assembly and connecting rod; First pin and the second pin are all longitudinally arranged, and its top is all positioned at housing, and bottom is stretched out below housing; Second pin upper end is provided with the transverse fold portion of sensing first pin; Movable contact flat horizontally set and between the first pin top and the second pin top; The stiff end of movable contact flat is connected to the top of the first pin, and the free end of movable contact flat is located at the below in transverse fold portion; Connecting rod outer end is hinged on described shake-up briquetting, is hinged in described housing in the middle part of connecting rod, and connecting rod the inner to be stretched into below movable contact flat and connected movable contact flat; In the middle part of described connecting rod, the horizontal level of hinged place is higher than the horizontal level of described movable contact flat; Elastic reset assembly upper end is connected on the inwall of housing top side, and lower end is fixed on the middle part of movable contact flat; One can change position magnetic patch with the deformation of elastic reset assembly is provided with in elastic reset assembly; The bottom of elastic reset assembly is pushing post portion, top be one around and be fixedly connected on the annular deformation film of pushing post portion top peripheral wall, magnetic patch is fixed in pushing post portion; Be fixed on the middle part of movable contact flat bottom described pushing post portion, described annular deformation film top is pressed on the inwall of housing top side.
Housing top side outer wall is also fixed with an inductive circuit board corresponding with the position of described magnetic patch, between inductive circuit board and magnetic patch, leaves the induction spacing changed with elastic reset assembly deformed state.
As preferably, described first pin top is provided with the movable notch that can pass for connecting rod; Described movable contact flat stiff end is provided with the free gap can passed for connecting rod;
As preferably, described first pin top is the first furcation of Y-shaped structure, and movable notch is positioned in the middle of the first furcation; Described movable contact flat stiff end is provided with the second furcation of Y-shaped structure, and free gap is positioned in the middle of the second furcation.
As preferably, the first pin top is provided with arc gap groove, and the end face of described movable contact flat stiff end is curved, and snaps in described arc gap groove; Movable contact flat is provided with the bending contraction section of a protuberance, and described movable contact flat is temperature-sensitive memory metal sheet.
As preferably, described movable contact flat free end upper and lower surface is equipped with moving contact, and bottom surface, transverse fold portion is provided with the fixed contact coordinated with the moving contact above described movable contact flat free end; Moving contact below movable contact flat free end is corresponding with the upper end position of the 3rd pin; Annular deformation film deformed state and the spacing that changes are greater than the maximum spacing between described moving contact and fixed contact.
As preferably, described annular deformation film and pushing post portion are all that soft silica gel material is made, and the top peripheral wall in pushing post portion and annular deformation film the inner are connected as a single entity; Described pushing post portion peripheral part also fixed cover is provided with a hard adapter sleeve, and pushing post portion is fixedly connected on the middle part of movable contact flat by hard adapter sleeve.
As preferably, the arc-shaped concave that described annular deformation film points to oblique upper by inner recess surrounds.
As preferably, described annular deformation film is provided with at least two balance through holes, wherein the symmetrical setting in position of at least two balance through holes.
Compared with existing fine motion inductive switch, the utility model has following beneficial effect:
First, the parts of fine motion inductive switch of the present utility model are less, novel structure and rationally, mix proportion is easier to when assembling, and highly versatile, ensures stability again.
Secondly, fine motion inductive switch of the present utility model make use of the lever principle of connecting rod in trigger member, abandon using spring, even if meeting resilience reset after recycling elastic reset assembly ensures to unclamp at every turn, guarantee to disconnect, reduce the possibility of false triggering, make the open and closed in trigger switch distincter, no longer there is the situations such as the dynamic or loose contact of false touch that spring fatigue, vibration and poor fit bring, make fine motion induction switch structure of the present utility model more stable, longer service life.
3rd, fine motion inductive switch of the present utility model is triggered and responds to sensitive and open at every turn and close and all can be exported by induced signal, is convenient to directly be connected with controller signals, can be used as transducer and the actuator of control system simultaneously.
Finally; fine motion inductive switch of the present utility model is in above-mentioned further preferred version; movable contact flat utilizes temperature-sensitive memory metal; the basis not only not increasing structure achieves overload overtemperature protection, improves the fail safe of fine motion inductive switch self, and; utilize temperature-sensitive memory metal; even if there is overload, neither destructive protect, after cooling, this fine motion inductive switch can continue to use.
Accompanying drawing explanation
Fig. 1: the perspective view of the utility model embodiment fine motion inductive switch.
Fig. 2: the utility model embodiment fine motion inductive switch disconnect time and the 3rd pin not enabled time cross-sectional view.
Fig. 3: cross-sectional view when the utility model embodiment fine motion inductive switch triggers closed.
Fig. 4: when the utility model embodiment fine motion inductive switch disconnects and the cross-sectional view of the 3rd pin when enabling.
Fig. 5: the perspective view of movable contact flat in the utility model embodiment.
Fig. 6: the perspective view of the first pin in the utility model embodiment.
Fig. 7: the perspective view of the utility model embodiment Elastic reset assembly.
Fig. 8: the cross-sectional view of the utility model embodiment Elastic reset assembly uncompressed state.
Fig. 9: the cross-sectional view of the utility model embodiment Elastic reset assembly compressive state.
In figure: housing 1; Induction pieces 10; Inductive circuit board 100; Hinged pillar 11; First pin 2; Arc gap groove 21; Movable notch 22; Bifurcated plate 23; Second pin 3; Transverse fold portion 31; Fixed contact 32; Movable contact flat 4; Bending contraction section 41; Moving contact 42; Free gap 44; Bifurcated terminals 45; Touch briquetting 5; Wing plate 51; Link end 52; ; 3rd pin 6, the 3rd pin bottom 60, the 3rd pin top 61, insulating barrier 62, tapped through hole 610, connecting rod 7; Upper cover 8; Elastic reset assembly 9; Hard adapter sleeve 90; Annular deformation film 92; Balance through hole 920; Pushing post portion 93.
Embodiment
Below in conjunction with accompanying drawing, description of illustrating further is done to the utility model, but protection range of the present utility model is not limited to this.
Embodiment:
A kind of fine motion inductive switch as shown in figs 1-9, is made up of housing 1, touch switch and shake-up briquetting 5.The top of housing 1 is upper cover 8, touches briquetting 5 side and is provided with the symmetrical interval setting of two blocks of wing plates, 51, two wing plates 51.
What the distal medial of described wing plate 51 was provided with T-shaped links end 52, and housing 1 both sides corresponding with linking end 52 are respectively equipped with holds hinged short slot 13 with described linking.Touch briquetting 5 to be movably articulated in outside housing 1 by the end 52 that links of its far-end, and connect touch switch.Touching briquetting 5 can be up and down with pressure effect, thus drives the action that touch switch completes out and closes.Above-mentioned touch switch main body is arranged in housing 1, and upper cover 8 covers, on housing, touch switch is enclosed in case inside, completes assembling.
Above-mentioned touch switch comprises: the first pin 2, second pin 3, the 3rd pin 6, movable contact flat 4, elastic reset assembly 9 and connecting rod 7, first pin 2 and the second pin 3 are all longitudinally arranged, and its top is all positioned at housing 1, and bottom is stretched out below housing 1.When switch disconnects, be not communicated with between the first pin 2 and the second pin 3, when switch closes, the first pin 2 and the second pin 3 are by movable contact flat 4 electric connection.Particularly, first pin 2 as shown in Figure 4, first pin 2 top is the first furcation of Y-shaped structure, first furcation comprises the bifurcated plate 23 of pair of right and left symmetry, part fork plate 23 on the left side and part the movable notch 22 leaving between fork plate 23 and can pass for connecting rod 7 on the right side, namely movable notch 22 is positioned in the middle of the first furcation.Second pin 3 upper end is provided with the transverse fold portion 31 of sensing first pin 2.Above-mentioned movable contact flat 4 horizontally set and between the first pin 2 top and the second pin 3 top, the stiff end of movable contact flat 4 is connected to the top of the first pin 2, and the free end of movable contact flat 4 is located at the below in transverse fold portion 31.Particularly, movable contact flat 4 stiff end is provided with the second furcation of Y-shaped structure, second furcation also comprises the bifurcated terminals 45 of pair of right and left symmetry, and also leave the free gap 44 can passed for connecting rod 7 between left and right bifurcated terminals 45, namely free gap 44 is positioned in the middle of the second furcation.
The top of the first pin 2 and left and right bifurcated plate 23 are equipped with arc gap groove 21, and the end of movable contact flat 4 stiff end and left and right bifurcated terminals 45 is all curved, and left and right bifurcated terminals 45 is corresponding respectively snaps in the arc gap groove 21 of left and right bifurcated plate 23.Movable contact flat 4 free end is provided with moving contact 42, and bottom surface, transverse fold portion 31 is provided with the fixed contact 32 coordinated with moving contact 42.
Above-mentioned connecting rod 7 outer end is hinged on touches on briquetting 5, hinged pillar 11 is provided with inside housing 1, the hinged pillar 11 in housing 1 is hinged in the middle part of connecting rod 7, connecting rod 7 the inner is stretched into contact below movable contact flat 4 and with movable contact flat 4 and is connected, and in the middle part of connecting rod 7, the horizontal level of hinged place is higher than the horizontal level of movable contact flat 4, and in the middle part of connecting rod 7, hinged place is as fulcrum, adopt lever principle, when pressing down shake-up briquetting 5, moving contact 42 connects fixed contact 32, and switch closes.
Above-mentioned elastic reset assembly 9 upper end is connected on the inwall of housing 1 top side, and lower end is fixed on the middle part of movable contact flat 4.One can change position magnetic patch 94 with elastic reset assembly 9 deformation is provided with in elastic reset assembly 9.Particularly, the bottom of elastic reset assembly 9 is pushing post portions 93, top be one around and be fixedly connected on the annular deformation film 92 of pushing post portion 93 top peripheral wall, annular deformation film 92 top is pressed on the inwall of housing 1 top side.Pushing post portion 93 peripheral part also fixed cover is provided with a hard adapter sleeve 90, the material that hard engagement sleeves 90 adopts be easy to process, the duroplasts of corrosion-resistant and deformation, and adopt tight fit mode fixed thereon with pushing post portion 93, move with its motion, pushing post portion 93 is fixedly connected on the middle part of movable contact flat 4 by hard adapter sleeve 90.Annular deformation film 92 and above-mentioned pushing post portion 93 are that identical soft silica gel material is made, annular deformation film 92 and pushing post portion 93 are connected as a single entity, and adopt the elastic reset assembly 9 of one like this, mix hard engagement sleeves 90, although manufacturing cost is slightly high, durability is fine.Magnetic patch 94 is fixed in pushing post portion 93; The middle part of movable contact flat 4 is fixed on bottom described pushing post portion 93.And housing 1 top side outer wall is also fixed with an induction pieces 10, be provided with the inductive circuit board 100 corresponding with the position of magnetic patch 94 in induction pieces 10, between inductive circuit board 100 and magnetic patch 94, leave the induction spacing changed with elastic reset assembly 9 deformed state.
The arc-shaped concave that above-mentioned annular deformation film 92 points to oblique upper by inner recess surrounds.In order to make the elastic deformation of annular deformation film 92 better, make its work more stable, misoperation reduces, annular deformation film 92 of the present utility model is provided with two balance through holes 920, so, the space that annular deformation film 92 and upper cover 8 inwall surround is not just confined space, is convenient to counterbalance annular deformation film 92 inner air and outer air pressure, makes pushing post portion 93 can rise more easily and drive the deformation of annular deformation film 92.
If do not balance through hole 920, first, the difficulty of annular deformation film 92 deformation just strengthens, and deformation just becomes unstable under how many force value, easily like this make annular deformation film 92 contact blunt or misoperation, cause fine motion inductive switch to need larger strength to carry out trigger switch, stability is bad; Simultaneously, if do not balance through hole 920, even if also easily impel the top edge at annular deformation film 92 and upper cover 8 contact internal walls place to be discharged air by raising when each deformation of annular deformation film 92, thus cause the deformation of annular deformation film 92 irregular, repeatedly easily cause its distortion on housing 1 to coordinate after deformation.In order to make the deformation of annular deformation film 92 better, two of the best symmetrical setting as above of quantity of balance through hole 920, namely the position of two balance through holes 920 divide be in pushing both sides, post portion 93 annular deformation film 92 on.
Above-mentioned movable contact flat 4 is temperature-sensitive memory metal sheets, movable contact flat 4 is provided with the bending contraction section 41 of a protuberance, this bending contraction section 41 has certain elasticity time flat, and under shake-up briquetting 5 is not bestowed the situation of pressure, the moving contact 42 that can order about movable contact flat 4 departs from fixed contact 32 downwards.The material of movable contact flat 4 is temperature-sensitive memory metals, and there is bending contraction section 41, when the current overload at the first pin 2 and the second pin 3 two ends, movable contact flat 4 is overheated soon, and now movable contact flat 4 is out of shape, especially bending contraction section 41 rapid desufflation, now, first pin 2 does not contact in clamping with movable contact flat 4 stiff end, and even between the moving contact 42 of movable contact flat 4 and the fixed contact 32 of the second grafting, position is not corresponding yet, the electric connection of both cut-outs.
During use, when the housing 1 of fine motion inductive switch is fixedly connected with transducer, trigger unit on transducer applies downward pressure to shake-up briquetting 5, touches briquetting 5 downward, by the leverage of connecting rod 7, the free end of movable contact flat 4 is raised up, elastic reset assembly 9 is compressed, and the deformation as shown in Figure 7 of annular deformation film 92, the moving contact 42 of movable contact flat 4 contacts with fixed contact 32 simultaneously, and then being communicated with first pin 2 and second pin 3 at two ends, fine motion inductive switch is just opened;
Movable contact flat 4 under normality is restored to the original state by elastic reset assembly 9, namely annular deformation film 92 extends to original state, order about movable contact flat 4 and press down connecting rod 7 lower end, make to touch briquetting 5 return and keep movable contact flat 4 lateral balance, do not contact between movable contact flat 4 with transverse fold portion 31, such vibrational power flow, it is simple that object is to make fine motion induction switch structure, is quick on the draw, the most important thing is to use and stablize.When the voltage overload at the first pin 2 and the second pin 3 two ends, movable contact flat 4 produces and heats up; the movable contact flat 4 bending contraction section 41 that temperature-sensitive memory metal makes shrinks; and bent downward is out of shape; thus make it depart from transverse fold portion 31 open circuit, thus realize the overcurrent protection of fine motion inductive switch to transducer.
Above-mentioned connecting rod 7 is insulated connecting rods, and certain elastic reset assembly 9 entirety is also all insulation, and object is to allow fine motion inductive switch safety and stability more, prevents short circuit or overload protection to lose efficacy.
Housing 1 below the free end being positioned at movable contact flat 4 is provided with tapped through hole 610, above-mentioned 3rd pin top 61 arranges external screw thread, be threaded in tapped through hole 610 by this external screw thread, leave clearance for insulation between the upper end of the 3rd pin 6 and the free end of movable contact flat 4 or be provided with an insulating barrier that can be the worse for wear 62.Under not enabled state, the upper end of the 3rd pin 6 is not stretched in the installation cavity of housing 1, and namely the upper end of the 3rd pin 6 is positioned at below insulating barrier 62.The middle part of the 3rd pin 6 is just stretched out outside housing 1, and collapsible in the middle part of the 3rd pin 6, the 3rd pin 6 bottom is positioned at hull outside and may be folded on bottom described housing 1, can arrange the groove of an accommodation the 3rd pin bottom 60 bottom housing 1.
When enabling the 3rd pin, the 3rd pin 6 threadingly through hole 1 rotates upwards, and insulating barrier 62 can be worn out in the upper end of the 3rd pin 6, directly and the free end conductive contact of movable contact flat 4.The utility model is using the 3rd pin 6 as pin for subsequent use, if desired, the normally open or normally closed state of this fine motion inductive switch oppositely can be switched.
Above embodiment illustrates by way of example, and it can not as to restriction of the present utility model.When not deviating from the utility model scope, its principal character may be used for various execution mode.
Claims (8)
1. a fine motion inductive switch, is characterized in that: comprise housing (1), be arranged on the touch switch in housing (1) and touch briquetting (5); Touch briquetting (5) side and be provided with two pieces of wing plates (51), two symmetrical intervals of wing plate (51) are arranged; What the distal medial of described wing plate (51) was provided with T-shaped links end (52), and housing (1) both sides are respectively equipped with holds hinged short slot (13) with described linking; Touch briquetting (5) and be movably articulated in housing (1) outside by the end (52) that links of its far-end, and connect touch switch; Described touch switch comprises: the first pin (2), the second pin (3), movable contact flat (4), elastic reset assembly (9) and connecting rod (7);
First pin (2) and the second pin (3) are all longitudinally arranged, and its top is all positioned at housing (1), and housing (1) below is stretched out in bottom;
Second pin (3) upper end is provided with the transverse fold portion (31) of sensing first pin (2);
Movable contact flat (4) horizontally set and be positioned between the first pin (2) top and the second pin (3) top;
The stiff end of movable contact flat (4) is connected to the top of the first pin (2), and the free end of movable contact flat (4) is located at the below of transverse fold portion (31);
Connecting rod (7) outer end is hinged on described shake-up briquetting (5), connecting rod (7) middle part is hinged in described housing (1), and connecting rod (7) the inner is stretched into movable contact flat (4) below and connected movable contact flat (4);
The horizontal level of hinged place, described connecting rod (7) middle part is higher than the horizontal level of described movable contact flat (4);
Elastic reset assembly (9) upper end is connected on the inwall of housing (1) top side, and lower end is fixed on the middle part of movable contact flat (4);
One can change position magnetic patch (94) with (9) deformation of elastic reset assembly is provided with in elastic reset assembly (9); The bottom of elastic reset assembly (9) is pushing post portion (93), top be one around and be fixedly connected on the annular deformation film (92) of pushing post portion (93) top peripheral wall, magnetic patch (94) is fixed in pushing post portion (93); Described pushing post portion (93) bottom is fixed on the middle part of movable contact flat (4), and described annular deformation film (92) top is pressed on the inwall of housing (1) top side;
Housing (1) top side outer wall is also fixed with an inductive circuit board (100) corresponding with the position of described magnetic patch (94), between inductive circuit board (100) and magnetic patch (94), leaves the induction spacing changed with elastic reset assembly (9) deformed state.
2. a kind of fine motion inductive switch according to claim 1, is characterized in that:
Described first pin (2) top is provided with the movable notch (22) that connecting rod (7) can be supplied to pass; Described movable contact flat (4) stiff end is provided with the free gap (44) that connecting rod (7) can be supplied to pass.
3. a kind of fine motion inductive switch according to claim 1, is characterized in that:
Described first pin (2) top is the first furcation of Y-shaped structure, and movable notch (22) is positioned in the middle of the first furcation; Described movable contact flat (4) stiff end is provided with the second furcation of Y-shaped structure, and free gap (44) are positioned in the middle of the second furcation.
4. a kind of fine motion inductive switch according to claim 1-3 any one, is characterized in that:
First pin (2) top is provided with arc gap groove (21), and the end face of described movable contact flat (4) stiff end is curved, and snaps in described arc gap groove (21); Movable contact flat (4) is provided with the bending contraction section (41) of a protuberance, and described movable contact flat (4) is temperature-sensitive memory metal sheet.
5. a kind of fine motion inductive switch according to claim 1-3 any one, is characterized in that:
Described movable contact flat (4) free end upper and lower surface is equipped with moving contact (42), and transverse fold portion (31) bottom surface is provided with the fixed contact (32) coordinated with the moving contact (42) above described movable contact flat (4) free end; Moving contact (42) below movable contact flat (4) free end is corresponding with the upper end position of the 3rd pin (6); Annular deformation film (52) deformed state and the spacing that changes are greater than the maximum spacing between described moving contact (42) and fixed contact (32).
6. a kind of fine motion inductive switch according to claim 1-3 any one, is characterized in that:
Described annular deformation film (92) and pushing post portion (93) are all that soft silica gel material is made, and the top peripheral wall of pushing post portion (93) and annular deformation film (92) the inner are connected as a single entity; Described pushing post portion (93) peripheral part also fixed cover is provided with a hard adapter sleeve (90), and pushing post portion (93) is fixedly connected on the middle part of movable contact flat (4) by hard adapter sleeve (90).
7. a kind of fine motion inductive switch according to claim 1-3 any one, is characterized in that:
The arc-shaped concave that described annular deformation film (92) points to oblique upper by inner recess surrounds.
8. a kind of fine motion inductive switch according to claim 1-3 any one, is characterized in that:
Described annular deformation film (92) is provided with at least two balances through hole (920), wherein the symmetrical setting in position of at least two balances through hole (920).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503884.2U CN204857527U (en) | 2015-07-12 | 2015-07-12 | Fine motion inductive switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503884.2U CN204857527U (en) | 2015-07-12 | 2015-07-12 | Fine motion inductive switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857527U true CN204857527U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520503884.2U Expired - Fee Related CN204857527U (en) | 2015-07-12 | 2015-07-12 | Fine motion inductive switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047457A (en) * | 2015-07-12 | 2015-11-11 | 朱正直 | Micro-motion induction switch |
| CN112915443A (en) * | 2021-02-26 | 2021-06-08 | 杨育海 | Intelligent fire protection device |
-
2015
- 2015-07-12 CN CN201520503884.2U patent/CN204857527U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047457A (en) * | 2015-07-12 | 2015-11-11 | 朱正直 | Micro-motion induction switch |
| CN105047457B (en) * | 2015-07-12 | 2017-04-12 | 杭州奥普卫厨科技有限公司 | Micro-motion induction switch |
| CN112915443A (en) * | 2021-02-26 | 2021-06-08 | 杨育海 | Intelligent fire protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |