CN104282453A - Limit switch and linear actuator with limit switch - Google Patents
Limit switch and linear actuator with limit switch Download PDFInfo
- Publication number
- CN104282453A CN104282453A CN201310285986.7A CN201310285986A CN104282453A CN 104282453 A CN104282453 A CN 104282453A CN 201310285986 A CN201310285986 A CN 201310285986A CN 104282453 A CN104282453 A CN 104282453A
- Authority
- CN
- China
- Prior art keywords
- limit switch
- shell block
- linear actuators
- insulation shell
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/008—Application power seats
Abstract
The invention relates to a limit switch and a linear actuator with the limit switch. The limit switch comprises an insulating shell base, a pressing block, pins, an elastic conduction and connection set and a diode. The insulating shell base is provided with an opening and a plurality of opening grooves. The pressing block is arranged on the top face of the insulating shell base and is convexly exposed out of the opening. A pair of pins is arranged in the insulating shell base in a spaced mode and penetrates out of the opening grooves respectively. The elastic conduction and connection set comprises an elastic element pressed through the pressing block, and a conduction and connection sheet connected with the elastic element, and the conduction and connection sheet conducts and connects the pins. The diode is arranged in the insulating shell base, the diode is provided with two conduction pins, and the two conduction pins in the insulating shell base are correspondingly connected with the pins respectively. The linear actuator carries out power control through the diode and the limit switch. The diode is arranged in the limit switch, so that the diode does not need to be additionally welded to external pins of the limit switch, and accordingly the electric conduction and connection of the limit switch are simplified and automation of the manufacturing technology can be facilitated.
Description
Technical field
The present invention about a kind of limit switch, espespecially a kind of limit switch and there is the linear actuators of this limit switch.
Background technology
Linear actuators (Linear Actuator) has now been widely used on the medical equipment such as sick bed, electrically propelled chair or equipment, or other needs are stretched, contracted in the field of running.
Current a kind of linear actuators mainly comprises driving element, transmission device, telescoping tube and two limit switches.When telescoping tube advance and touch wherein a limit switch time, even the advance power-off of driving element, telescoping tube only can be moved backward; Moreover when telescoping tube retreats and touches another limit switch, the retrogressing power-off of driving element, makes telescoping tube only can move forward.Accordingly, namely the start (advance or step back) of this telescoping tube controls power supply supply by two limit switches, and then controls the advance of telescoping tube or step back dynamic.
Please refer to Fig. 1, what it showed the limit switch of linear actuators now arranges schematic diagram.Limit switch 1a in linear actuators is arranged on a supporting bracket 2a, and again, this supporting bracket 2a is separately provided with a diode 3a element and a wire 4a.This limit switch 1a utilizes the rectification function of diode 3a and only allows electric current to be passed through by single direction, blocks time reverse.When group is established, the external pins 5a of this limit switch 1a is through this supporting bracket 2a, last again by human weld's mode, this diode 3a element and this wire 4a are electrically connected the pin 5a of this limit switch 1a, accordingly, namely the signal of this limit switch 1a and this diode 3a conducts to control unit by this wire 4a.
But in said structure, this limit switch 1a and this diode 2a is quite consuming time by the combination of human weld, effort and location not easily, cause the difficulty on assembling operation.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of limit switch, and it can save the operation of welding diode, to simplify being electrically conducted and being beneficial to manufacture craft automation of limit switch.
In order to reach above-mentioned object, the invention provides a kind of limit switch, comprising:
One insulation shell block, it has an opening and multiple fluting;
One briquetting, it is arranged on the end face of this insulation shell block and is convexly exposed at outside this opening;
A pair pin, its separation is arranged in this insulation shell block, and passes those flutings respectively;
One is flexibly connected group, and it comprises the flexible member pressed by this briquetting and the guide-joining plate connecting this flexible member, and two ends of this guide-joining plate respectively correspondence connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block forms one second accommodation space in this first accommodation space, and this diode is positioned in this second accommodation space.
As the preferred version of above-mentioned a kind of limit switch, wherein this insulation shell block forms two interpolation slits being communicated with this first accommodation space and this second accommodation space, and this two lead foot respectively correspondence to be set in this two interpolation slit and to be electrically conducted this to pin.
As the preferred version of above-mentioned a kind of limit switch, wherein this flexible member is a spring, and one end of this spring is fixed on this on a wherein pin of pin, and the other end is fixed on this guide-joining plate.
Another object of the present invention is to provide a kind of linear actuators with limit switch, it saves being welded to each other between diode and limit switch, thus can simplify limit switch be electrically conducted operation, be conducive to manufacture craft automation.
In order to reach above-mentioned object, the invention provides a kind of linear actuators with limit switch, comprising:
One casing;
One transmission device, it is arranged in this casing; And
At least one limit switch, it to be arranged in this casing and to be subject to the shake-up of this transmission device and start, and this limit switch comprises:
One insulation shell block, it has opening and multiple fluting;
One briquetting, it is arranged on the end face of this insulation shell block and is convexly exposed at outside this opening;
A pair pin, its separation is arranged in this insulation shell block, and passes those flutings respectively;
One is flexibly connected group, and it comprises the flexible member pressed by this briquetting and the guide-joining plate connecting this flexible member, and two ends of this guide-joining plate respectively correspondence connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this transmission device comprises an actuating mechanism, and this actuating mechanism comprises a motor and the transmission group by this motor driven.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this transmission device more comprises a telescoping tube, and this telescoping tube stretches out or this casing of retracting by this transmission group drives.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this limit switch is to arranging by telescoping tube.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, the wherein said linear actuators with limit switch more comprises a supporting bracket and a wire, this limit switch is arranged on a side of this supporting bracket, and this wire is arranged on the another side of this supporting bracket and is electrically connected this to pin.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this insulation shell block forms one second accommodation space in this first accommodation space, is positioned with this diode in this second accommodation space.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this insulation shell block forms two interpolation slits being communicated with this first accommodation space and this second accommodation space, and this two lead foot respectively correspondence to be set in this two interpolation slit and to be electrically conducted this to pin.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this flexible member is a spring, and one end of this spring is fixed on this on a wherein pin of pin, and the other end is fixed on this guide-joining plate.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this casing comprises shell block and is combined in an outer tube in this shell block front.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this shell block and this outer tube are that integral type is shaping.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this casing comprises one first housing and one second housing of cover conjunction relatively.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this casing more comprises a waterproof adhesive tape, and this waterproof adhesive tape is arranged on the junction of this first housing and this second housing.
As above-mentioned a kind of preferred version with the linear actuators of limit switch, wherein this casing is made up of plastic material.
Compared to known technology, linear actuators of the present invention makes Energy control by diode and limit switch; The inside of limit switch of the present invention is provided with diode, therefore do not need extra again by welding diode in the external pins of limit switch, save the welding sequence of known limits switch and diode, establish man-hour and manpower to simplify group, thus be conducive to the enforcement of automated production technique.
Accompanying drawing explanation
Fig. 1 be the limit switch of known linear actuator schematic diagram is set;
Fig. 2 is the combination schematic diagram of limit switch of the present invention;
Fig. 3 is the three-dimensional exploded view of limit switch of the present invention;
Fig. 4 is the assembled sectional view of limit switch of the present invention;
Fig. 5 be limit switch of the present invention schematic diagram is set;
Fig. 6 is the linear actuators with limit switch of the present invention;
Fig. 7 is the application schematic diagram with the linear actuators of limit switch of the present invention;
Fig. 8 is the Another Application schematic diagram with the linear actuators of limit switch of the present invention;
Fig. 9 is second embodiment with the casing of the linear actuators of limit switch of the present invention.
[main element symbol description]
1,1 '-limit switch; 1a-linear actuators; 10-insulate shell block; 100-first accommodation space; 101-second accommodation space; 102-interpolation slit; 11-opening; 12-slots;
2,2 '-linear actuators; 2a-supporting bracket; 20-briquetting;
3a-diode; 30-pin;
4a-wire; 40-is flexibly connected group; 41-flexible member; 42-guide-joining plate;
5a-pin; 50-diode; 51-lead foot;
60,60 '-casing; 61-shell block; 61 '-the first housing; 62-outer tube; 62 '-the second housing; 63 '-waterproof adhesive tape;
70,70 '-actuating mechanism; 700,700 '-transmission device; 71-motor; 72-transmission group; 721-first touch part;
80,80 '-telescoping tube; 81-second touch part;
90-supporting bracket; 91-wire.
Embodiment
Detailed description for the present invention and technology contents, be described as follows cooperation accompanying drawing, but accompanying drawing as illustrative purposes only, not for limiting the present invention.
Please refer to Fig. 2 to Fig. 4, be respectively the combination schematic diagram of limit switch of the present invention, three-dimensional exploded view and assembled sectional view.Limit switch 1 of the present invention comprises insulation shell block 10, briquetting 20, a pair pin 30, is flexibly connected group 40 and a diode 50.This briquetting 20 is arranged on this insulation shell block 10, and this be flexibly connected group 40 and this diode 50 are arranged in this insulation shell block 10, and this is pass pin 30 from this respectively, in order to provide electric connection to pin 30.
This insulation shell block 10 is made up of isolation material such as plastics.This insulation shell block 10 has one first accommodation space 100, opening 11 and multiple fluting 12, and this opening 11 and those flutings 12 are communicated with this first accommodation space 100.In the present embodiment, this insulation shell block 10 forms one second accommodation space 101 in this first accommodation space 100, and forms two interpolation slits 102 being communicated with this first accommodation space 100 and this second accommodation space 101.
This briquetting 20 is arranged on the end face of this insulation shell block 10, and this briquetting 20 is connected on this opening 11, and to pass and part is convex is exposed at outside this opening 11 from this opening 11.Again, this is arranged in this accommodation space 100 pin 30 separation, and passes those flutings 12 respectively, to provide electric connection other electron component.
This group 40 that is flexibly connected comprises the flexible member 41 pressed by this briquetting 20 and the guide-joining plate 42 connecting this flexible member 41.This flexible member 41 can be a spring, and this flexible member 41 elasticity abuts this briquetting 20.One end of this flexible member 41 be fixed on this on a wherein pin of pin 30, the other end is fixed on this guide-joining plate 42.Two ends of this guide-joining plate 42 respectively correspondence connect this to pin 30.In the present embodiment, one end of this flexible member 41 is fixed on this on a wherein pin of pin 30, and the other end is then be fixed on this guide-joining plate 42.
Moreover this diode 50 is arranged in this insulation shell block 10.This diode 50 has two lead foots 51, and this two lead foot 51 is connected respectively this to pin 30 in this insulation shell block 10.This two lead foot 51 respectively correspondence to be set in this two interpolation slit 102 and to be electrically conducted this to pin 30, is positioned in this second accommodation space 101 to make this diode 50.
When using this limit switch 1, one end of this guide-joining plate 42 connects this wherein pin to pin 30, and the other end is then connect another pin, and now, this limit switch 1 remains on the state of conducting.When this briquetting 20 be subject to outer try hard to recommend pull time, this briquetting 20 moves down and presses this flexible member 41, and this flexible member 41 drives this guide-joining plate 42 to leave this another pin immediately, and now, this limit switch 1 is the state remaining on not conducting.
Please separately with reference to Fig. 5 and Fig. 6, for showing arranging schematic diagram and there is the linear actuators of limit switch of limit switch of the present invention.Limit switch 1 of the present invention can be applicable on a linear actuators 2, in order to control advance and the retrogressing of this linear actuators 2.This linear actuators 2 comprises casing 60, transmission device 700 and an at least one limit switch 1, comprises limit switch 1, limit switch 1 ' in the present embodiment.The structure of this limit switch 1, limit switch 1 ', in detail as aforementioned, repeats no more in this.This limit switch 1, limit switch 1 ' are separated and are arranged in this casing 60, and are subject to the shake-up of this transmission device 700 and start.
This casing 60 can be plastic material and forms, and this casing 60 comprises a shell block 61 and is combined in an outer tube 62 in this shell block 61 front, and this shell block 61 and this outer tube 62 can be integral molding.In the present embodiment, this transmission device 700 comprises actuating mechanism 70 and a telescoping tube 80.This actuating mechanism 70 is arranged in the shell block 61 of this casing 60, the transmission group 72 that this actuating mechanism 70 comprises a motor 71 and drives by this motor 71.This telescoping tube 80 drives by this transmission group 72 and stretches out or this casing 60 of retracting.
In the present embodiment, this linear actuators 2 more comprises supporting bracket 90 and a wire 91 (please be another with reference to Fig. 4).This limit switch 1, limit switch 1 ' are arranged on a side of this supporting bracket 90, and this wire 91 is arranged on the another side of this supporting bracket and is electrically connected this to pin 30.In addition this limit switch 1, limit switch 1 ' separation are arranged in this supporting bracket 90.
Please refer to Fig. 7, for showing the application schematic diagram of the casing of linear actuators of the present invention; In the present embodiment, this limit switch 1, limit switch 1 ' are subject to the shake-up of this transmission group 72 and start, and this transmission group 72 has one first touch part 721.Therefore, when transmission group 72 advances, the first touch part 721 can touch a wherein limit switch 1, even the advance power-off of now actuating mechanism 70; On the other hand, when transmission group 72 retreats, when the first touch part 721 touches to another limit switch 1 ', the retrogressing power-off of actuating mechanism 70.Accordingly, namely the start of this transmission group 72 controls power supply supply by this limit switch 1, limit switch 1 '.
Referring again to Fig. 8, for showing the Another Application schematic diagram of linear actuators of the present invention; This execution mode is roughly the same with the execution mode of Fig. 7, the shake-up that its difference is this limit switch 1, limit switch 1 ' is subject to this telescoping tube 80 and start, this telescoping tube 80 has one second touch part 81, and limit switch 1 ' is to arranging by telescoping tube 80.In like manner, when telescoping tube 80 advances, the second touch part 81 can touch a wherein limit switch 1, even the advance power-off of now actuating mechanism 70; On the other hand, move back when telescoping tube is after 80s, when the second touch part 81 touches to another limit switch 1 ', the retrogressing power-off of actuating mechanism 70.
Separately with reference to Fig. 9, another embodiment of the casing of linear actuators of the present invention please be shown; The present embodiment is roughly the same with previous embodiment, and linear actuators 2 ' comprises a casing 60 ', transmission device 700 ' (comprising an actuating mechanism 70 ' and a telescoping tube 80 ') and limit switch 1, a limit switch 1 '.The present embodiment place different from previous embodiment is the enforcement state of casing 60 '.In the present embodiment, this casing 60 ' comprises one first housing 61 ' and one second housing 62 ' of cover conjunction relatively.Preferably, this casing 60 ' more comprises a waterproof adhesive tape 63 ', and this waterproof adhesive tape 63 ' is arranged on the junction of this first housing 61 ' and this second housing 62 ', to provide the sealing of this casing 60 '.
The above, be only preferred embodiment of the present invention, and be not used to limit scope of patent protection of the present invention, therefore the change such as equivalence techniques, means of such as using patent of the present invention spirit to do, all should in like manner all be contained in scope of patent protection of the present invention.
Claims (19)
1. a limit switch, is characterized in that, comprising:
One insulation shell block, it has an opening and multiple fluting;
One briquetting, it is arranged on the end face of this insulation shell block and is convexly exposed at outside this opening;
A pair pin, its separation is arranged in this insulation shell block, and passes those flutings respectively;
One is flexibly connected group, and it comprises the flexible member pressed by this briquetting and the guide-joining plate connecting this flexible member, and two ends of this guide-joining plate respectively correspondence connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
2. limit switch as claimed in claim 1, it is characterized in that, this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
3. limit switch as claimed in claim 2, it is characterized in that, this insulation shell block forms one second accommodation space in this first accommodation space, and this diode is positioned in this second accommodation space.
4. limit switch as claimed in claim 3, is characterized in that, this insulation shell block forms two interpolation slits being communicated with this first accommodation space and this second accommodation space, and this two lead foot respectively correspondence to be set in this two interpolation slit and to be electrically conducted this to pin.
5. limit switch as claimed in claim 1, it is characterized in that, this flexible member is a spring, and one end of this spring is fixed on this on a wherein pin of pin, and the other end is fixed on this guide-joining plate.
6. there is a linear actuators for limit switch, it is characterized in that, comprising:
One casing;
One transmission device, it is arranged in this casing; And
At least one limit switch, it to be arranged in this casing and to be subject to the shake-up of this transmission device and start, and this limit switch comprises:
One insulation shell block, it has an opening and multiple fluting;
One briquetting, it is arranged on the end face of this insulation shell block and is convexly exposed at outside this opening;
A pair pin, its separation is arranged in this insulation shell block, and passes those flutings respectively;
One is flexibly connected group, and it comprises the flexible member pressed by this briquetting and the guide-joining plate connecting this flexible member, and two ends of this guide-joining plate respectively correspondence connect this to pin; And
One diode, it is arranged in this insulation shell block, and this diode has two lead foots, and this two lead foot is connected respectively this to pin in this insulation shell block.
7. have the linear actuators of limit switch as claimed in claim 6, it is characterized in that, this transmission device comprises an actuating mechanism, and this actuating mechanism comprises a motor and the transmission group by this motor driven.
8. have the linear actuators of limit switch as claimed in claim 7, it is characterized in that, this transmission device more comprises a telescoping tube, and this telescoping tube stretches out or this casing of retracting by this transmission group drives.
9. have the linear actuators of limit switch as claimed in claim 8, it is characterized in that, this limit switch is to arranging by telescoping tube.
10. there is the linear actuators of limit switch as claimed in claim 6, it is characterized in that, more comprise a supporting bracket and a wire, this limit switch is arranged on a side of this supporting bracket, and this wire is arranged on the another side of this supporting bracket and is electrically connected this to pin.
11. linear actuators as claimed in claim 6 with limit switch, it is characterized in that, this insulation shell block has one first accommodation space, and this opening and those flutings are communicated with this first accommodation space.
12. linear actuators as claimed in claim 11 with limit switch, it is characterized in that, this insulation shell block forms one second accommodation space in this first accommodation space, is positioned with this diode in this second accommodation space.
13. linear actuators as claimed in claim 12 with limit switch, it is characterized in that, this insulation shell block forms two interpolation slits being communicated with this first accommodation space and this second accommodation space, and this two lead foot respectively correspondence to be set in this two interpolation slit and to be electrically conducted this to pin.
14. linear actuators as claimed in claim 6 with limit switch, it is characterized in that, this flexible member is a spring, and one end of this spring is fixed on this on a wherein pin of pin, and the other end is fixed on this guide-joining plate.
15. linear actuators as claimed in claim 6 with limit switch, it is characterized in that, this casing comprises shell block and is combined in an outer tube in this shell block front.
16. linear actuators as claimed in claim 15 with limit switch, it is characterized in that, this shell block and this outer tube are that integral type is shaping.
17. linear actuators as claimed in claim 6 with limit switch, is characterized in that, this casing comprises one first housing and one second housing that cover relatively closes.
18. linear actuators as claimed in claim 17 with limit switch, it is characterized in that, this casing more comprises a waterproof adhesive tape, and this waterproof adhesive tape is arranged on the junction of this first housing and this second housing.
19. linear actuators as claimed in claim 6 with limit switch, it is characterized in that, this casing is made up of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285986.7A CN104282453B (en) | 2013-07-09 | 2013-07-09 | Limit switch and there is the linear actuators of this limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285986.7A CN104282453B (en) | 2013-07-09 | 2013-07-09 | Limit switch and there is the linear actuators of this limit switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104282453A true CN104282453A (en) | 2015-01-14 |
| CN104282453B CN104282453B (en) | 2016-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310285986.7A Active CN104282453B (en) | 2013-07-09 | 2013-07-09 | Limit switch and there is the linear actuators of this limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104282453B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019237225A1 (en) * | 2018-06-11 | 2019-12-19 | 炼马机电（东莞）有限公司 | Microswitch, driver manufacturing method, and driver |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673778A (en) * | 1985-02-05 | 1987-06-16 | The Cherry Corporation | Snap action switch |
| US5743387A (en) * | 1997-01-29 | 1998-04-28 | Chin-huei Chiu | Multistage switch |
| US6321611B1 (en) * | 1999-11-09 | 2001-11-27 | Hiwin Mikrosystem Corp. | Linear actuator travel limit apparatus |
| US6914507B2 (en) * | 2001-09-03 | 2005-07-05 | Sanden Corporation | Yoke of an electromagnetic clutch |
| US20050264109A1 (en) * | 2002-08-20 | 2005-12-01 | Link A/S | Linear actuator |
| US7872204B2 (en) * | 2006-10-05 | 2011-01-18 | Zippy Technology Corp. | Watertight switch |
| CN203367045U (en) * | 2013-07-09 | 2013-12-25 | 第一传动科技股份有限公司 | Limit switch and linear actuator having the limit switch |
-
2013
- 2013-07-09 CN CN201310285986.7A patent/CN104282453B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673778A (en) * | 1985-02-05 | 1987-06-16 | The Cherry Corporation | Snap action switch |
| US5743387A (en) * | 1997-01-29 | 1998-04-28 | Chin-huei Chiu | Multistage switch |
| US6321611B1 (en) * | 1999-11-09 | 2001-11-27 | Hiwin Mikrosystem Corp. | Linear actuator travel limit apparatus |
| US6914507B2 (en) * | 2001-09-03 | 2005-07-05 | Sanden Corporation | Yoke of an electromagnetic clutch |
| US20050264109A1 (en) * | 2002-08-20 | 2005-12-01 | Link A/S | Linear actuator |
| US7872204B2 (en) * | 2006-10-05 | 2011-01-18 | Zippy Technology Corp. | Watertight switch |
| CN203367045U (en) * | 2013-07-09 | 2013-12-25 | 第一传动科技股份有限公司 | Limit switch and linear actuator having the limit switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019237225A1 (en) * | 2018-06-11 | 2019-12-19 | 炼马机电（东莞）有限公司 | Microswitch, driver manufacturing method, and driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104282453B (en) | 2016-12-28 |
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