CN202170208U - High-precision elevator leveling switch - Google Patents
High-precision elevator leveling switch Download PDFInfo
- Publication number
- CN202170208U CN202170208U CN2011201961686U CN201120196168U CN202170208U CN 202170208 U CN202170208 U CN 202170208U CN 2011201961686 U CN2011201961686 U CN 2011201961686U CN 201120196168 U CN201120196168 U CN 201120196168U CN 202170208 U CN202170208 U CN 202170208U
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- China
- Prior art keywords
- housing
- high precision
- waterproof
- elevator landing
- circuit card
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- Expired - Fee Related
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model relates to a high-precision elevator leveling switch. A waterproof nut and a fixing nut are arranged on a housing, a waterproof end cap is arranged at one end of the housing, a tongue tube is arranged on a circuit board, and magnet blocks are arranged on the periphery of the tongue tube. The product applies the principle of superimposing magnetic fields, changes a change curve of the magnetic fields, improves the reaction speed of the tongue tube (shortens the reaction time of the tongue tube), well solves the precision problem, simultaneously changes the structure of magnetic strips and expands the deviation range of a normally open magnetic sensor.
Description
Technical field
The utility model relates to the technical field of magnet contactor, specifically a kind of high precision Elevator landing switch that is used for the Elevator landing device.
Background technology
The wide model of magnet contactor series products (promptly often driving the magnetic strength device) is applied to household electrical appliances number, mechanical control, automobile, industry control security protection, elevator or the like numerous areas, and it is with low cost, and is practical, and stable performance has obtained users' approval.
(photoelectric switch product precision can be controlled in ± 1mm, and conventional type of magnet contactor precision can only reach ± 4mm), field of application receives very big restriction but its actv. actuation range, the operation precision of magnet contactor and existing photoelectricity series products also have a certain distance.Such as, at elevator again in the flat bed field, because of being difficult to guarantee precision, and can't be applied.
So-called elevator flat bed again is meant elevator when the access door district, and the Elevator landing device can be given signal of elevator, and elevator is according to this signal; Begin braking; Because the inertia of elevator brake will cause elevator not to be parked in level position exactly, at this time; Need apparatus for controlling elevator that the position of elevator is adjusted, so that elevator is parked in position exactly.Let apparatus for controlling elevator make control command, must send the signal of flat bed to control system again, sending of this signal is exactly elevator leveling device role again.
Common elevator leveling device more all adopts photoelectric switch.Because its cost is higher, and is covered by dust easily, and cause photoelectric switch to lose efficacy.Often drive the magnetic strength device and do not receive the influence of flying dust, and lower cost, yet the deficiency of precision is often driven the magnetic strength device and is not used in the flat bed field at elevator again.
Elevator leveling device again need be installed in the top of elevator cab; Working environment humidity is bigger; So moistureproof damp proof having relatively high expectations to the magnetic strength device; And existing magnetic strength device not only operation precision can't guarantee that its containment structure also can't satisfy the elevator installation needs of leveling device again, moistureproof moisture-proof characteristic is relatively poor.Existing magnetic strength device in-to-in circuit card, electric wire output adopt the mode of welding to be connected with magnetic strength device itself simultaneously; Because circuit card has only an end and housing relative fixed; In the use of magnetic strength device; Circuit card bumps in housing easily and damages, and has increased maintenance and use cost, and integrally welded this fixed form makes troubles also for the maintenance and the replacement of daily magnetic strength device.
Often open the leveling device again that the magnetic strength device is installed in elevator and must satisfy three requirements the most basic: the spacing of operating point and cut-off point of 1, often driving the magnetic strength device is in 1mm; 2, it is in service at each floor of elevator often to drive the magnetic strength device, and departing from of the vertical distance of the operating point of often driving the magnetic strength device of each floor can not surpass ± 1mm; The installation site of 3, often driving the magnetic strength device must allow depart from ± more than the 5mm.Because magnetic field is not linear along with the variation of distance, and the structures shape of dry-reed tube often open the magnetic hysteresis that the magnetic strength device will produce 5mm.These inherent characteristic factors cause above three problems to be difficult to solve simultaneously.
Summary of the invention
The purpose of the utility model is to provide a kind of improved high precision Elevator landing switch; It can overcome often open in the prior art magnetic strength device precision not enough, be easy to generate that action lags behind, allows to depart from scope less; And moistureproof moisture-proof characteristic is relatively poor, the some shortcomings of maintenance and replacement inconvenience.
To achieve these goals; The technical scheme of the utility model is: a kind of high precision Elevator landing switch; It mainly comprises housing and the circuit card that is located in the housing, and it is characterized in that: housing is provided with waterproof nut and captive nut, and an end of housing is provided with the waterproof plug; Circuit card is provided with dry-reed tube, is provided with magnet piece around the dry-reed tube.
During use, the open end of the housing of the utility model both had been provided with the waterproof plug, was combined with the waterproof nut again, made product single-piece waterproof, anti-soak properties promote greatly; Circuit card is provided with dry-reed tube, is provided with a magnet piece around the dry-reed tube.Exist and during through the gap, on reed, induce the N utmost point and the S utmost point along axis direction as enough magnetic field, receive the magnetic attraction effect, reed moves the conducting electric current; Leave magnetic field, the elastic force of reed dependence itself is broken off and is cut off electric current.Thus, send signal to apparatus for controlling elevator.
The applicant has used the principle of magnetic field superposition, has changed the change curve in magnetic field, has improved the speed of response (having shortened the reaction time of dry-reed tube) of dry-reed tube, has well solved precision problem; Simultaneously, the structure of magnetic stripe is changed, enlarged and often driven the magnetic strength device and depart from scope.
That is: 1. through changing existing action magnet contour structures, makes its magnetic field that reasonableness take place within the specific limits and change, thereby improve the effective action scope;
2. in dry-reed tube periphery certain distance, apply small magnetic field; To reach of the compensation of varying level position to magnetic field; Thereby improved the effective action scope of dry-reed tube; Also guaranteed operation precision, made and often open the precision of magnetic strength device in Elevator landing is used and further improve, also obtained better application in the flat bed again at elevator at this scope Nei Changkai magnetic strength device.
Description of drawings
Fig. 1 is the structural representation of the utility model circuit card.
Fig. 2 is the structural representation of the utility model circuit card plate body.
Fig. 3 is the comparison chart of operation precision between the utility model circuit card and the prior art.
Fig. 4 moves towards scheme drawing for the magnetic field of the utility model magnet piece.
Fig. 5 is the performance perameter contrast chart between the utility model and the prior art.
Fig. 6 is the structural representation that the utility model one is implemented.
Fig. 7 is the another structural representation that the utility model one is implemented.
Fig. 8 is the internal view of the utility model housing.
Fig. 9 is the running condition reference diagram of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to describe.
The utility model mainly comprises housing 7 and the circuit card 1 that is located in the housing, it is characterized in that: housing is provided with waterproof nut 9 and captive nut 10, and an end of housing is provided with waterproof plug 11, and circuit card is provided with dry-reed tube 2, is provided with magnet piece 3 around the dry-reed tube.Circuit card is arranged in the housing of often driving the magnetic strength device, and circuit card is provided with hold down groove 4, and magnet piece is fixed on the hold down groove of inwall or circuit card of housing, and the straight-line distance between magnet piece and the dry-reed tube is smaller or equal to 20mm.Magnet piece be shaped as square, oblong, cylinder, trapezoidal or triangle, size is 0.5mm*0.5mm*2mm-1.5mm*1.5mm*5mm.Magnet piece adopts rubber to add magnetic, rare-earth magnet, neodymium iron or ferrite and processes, and the table magnetic of magnet piece is 130-160mT.The postmedian position of circuit card is provided with welding groove 5, and the two ends of welding groove are provided with welded plate 6, captives joint with welded plate respectively in the two ends of dry-reed tube.Dry-reed tube is encapsulated in the glass tube with vacuum by two ferro-nickel reeds and processes, and leaf end is coated with Noble Metal Rhodium, and the infall of two ferro-nickel reeds is provided with the slit.
The surface of housing is provided with outside thread 8, and outside thread is provided with waterproof nut and captive nut, and the waterproof nut sleeve is located at an end of housing and matches with the waterproof plug, and the inwall of housing is provided with the guide groove 12 of one group of symmetry, and the degree of depth of guide groove is 70mm-90mm.The waterproof plug is " T " font, and the waterproof plug is provided with the electric conduit 15 that runs through the waterproof plug, and the waterproof nut is provided with the through hole that matches with electric conduit, and captive nut has 2, and two captive nuts are arranged on externally threaded interlude in opposite directions.One end of housing is a closed end, and the other end is an open end, and the outside face that links to each other with open end is provided with outside thread, and externally threaded length accounts for 3/5-1/3 of shell length, and the outside face between closed end and the outside thread is a smooth side, and a side of smooth side is provided with scale 13.The waterproof nut is arranged on the open end of housing, and housing adopts nylon material to process.
In force, the utility model is installed in the top (referring to Fig. 9) of elevator cab, and magnetic stripe 14 sticks on the cage guide and is used with this product; The open end inside of union body is provided with the waterproof plug; The outside is combined with the waterproof nut again, makes the waterproof of product, anti-soak properties obtain duplicate protection, and the inwall of union body is provided with the guide groove of one group of symmetry; Circuit card can be fastened in the guide groove and the union body relative fixed; Make circuit card in use be not easy to bump and damage, prolonged the service life of product, the cost that has reduced maintenance and used.Because circuit-board card is located in the union body, the electric wire of circuit card one end is through electric conduit and external linkage on the waterproof plug, and it is convenient that above-mentioned connection mode is that daily maintenance and replacement have brought.Offer welding groove (referring to Fig. 1) on the circuit card; The two ends of dry-reed tube are welded to connect respectively at the welded plate at welding groove two ends; The below of welding groove is provided with the hold down groove of 1.4mm*2.2mm; Hold down groove is provided with magnet piece, and magnet piece is to be processed by the oblong rare-earth magnet that is of a size of 1mm*1mm*3mm, and the straight-line distance between magnet piece and the dry-reed tube is 5mm.The magnetic strength device of being processed by the foregoing circuit plate not only more existing common magnetic strength device of operation precision promotes greatly, and the single-piece properties of product also improve (referring to Fig. 3, Fig. 5) greatly.
Exist and during through the gap, on reed, induce the N utmost point and the S utmost point along axis direction as enough magnetic field, receive the magnetic attraction effect, reed moves the conducting electric current; Leave magnetic field, the elastic force of reed dependence itself is broken off and is cut off electric current.Thus, send signal to apparatus for controlling elevator.
The principle of above-mentioned magnetic field superposition has changed the change curve in magnetic field, has improved the speed of response (having shortened the reaction time of dry-reed tube) of dry-reed tube, has well solved precision problem; Simultaneously, the structure of magnetic stripe is changed, enlarged and often driven the magnetic strength device and depart from scope.
That is: 1. through changing existing action magnet contour structures, makes its magnetic field that reasonableness take place within the specific limits and change, thereby improve the effective action scope.
2. in dry-reed tube periphery certain distance, apply small magnetic field; To reach of the compensation of varying level position to magnetic field; Thereby improved the effective action scope of dry-reed tube; Also guaranteed operation precision, made and often open the precision of magnetic strength device in Elevator landing is used and further improve, also obtained better application in the flat bed again at elevator at this scope Nei Changkai magnetic strength device.
Claims (9)
1. high precision Elevator landing switch; It mainly comprises housing and the circuit card that is located in the housing, and it is characterized in that: housing is provided with waterproof nut and captive nut, and an end of housing is provided with the waterproof plug; Circuit card is provided with dry-reed tube, is provided with magnet piece around the dry-reed tube.
2. a kind of high precision Elevator landing switch according to claim 1; It is characterized in that: circuit card is arranged in the housing of often driving the magnetic strength device; Circuit card is provided with hold down groove; Magnet piece is fixed on the hold down groove of inwall or circuit card of housing, and the straight-line distance between magnet piece and the dry-reed tube is smaller or equal to 20mm.
3. a kind of high precision Elevator landing switch according to claim 1 is characterized in that: magnet piece be shaped as square, oblong, cylinder, trapezoidal or triangle, size is 0.5mm*0.5mm*2mm-1.5mm*1.5mm*5mm.
4. a kind of high precision Elevator landing switch according to claim 1, it is characterized in that: the postmedian position of circuit card is provided with welding groove, and the two ends of welding groove are provided with welded plate, captives joint with welded plate respectively in the two ends of dry-reed tube.
5. a kind of high precision Elevator landing switch according to claim 1 is characterized in that: dry-reed tube is encapsulated in the glass tube with vacuum by two ferro-nickel reeds and processes, and leaf end is coated with Noble Metal Rhodium, and the infall of two ferro-nickel reeds is provided with the slit.
6. a kind of high precision Elevator landing switch according to claim 1; It is characterized in that: the surface of housing is provided with outside thread; Outside thread is provided with waterproof nut and captive nut; The waterproof nut sleeve is located at an end of housing and matches with the waterproof plug, and the inwall of housing is provided with the guide groove of one group of symmetry, and the degree of depth of guide groove is 70mm-90mm.
7. a kind of high precision Elevator landing switch according to claim 7; It is characterized in that: the waterproof plug is " T " font; The waterproof plug is provided with the electric conduit that runs through the waterproof plug; The waterproof nut is provided with the through hole that matches with electric conduit, and captive nut has 2, and two captive nuts are arranged on externally threaded interlude in opposite directions.
8. a kind of high precision Elevator landing switch according to claim 1; It is characterized in that: an end of housing is a closed end; The other end is an open end, and the outside face that links to each other with open end is provided with outside thread, and externally threaded length accounts for 3/5-1/3 of shell length; Outside face between closed end and the outside thread is a smooth side, and a side of smooth side is provided with scale.
9. a kind of high precision Elevator landing switch according to claim 1, it is characterized in that: the waterproof nut is arranged on the open end of housing, and housing adopts nylon material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201961686U CN202170208U (en) | 2011-06-13 | 2011-06-13 | High-precision elevator leveling switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201961686U CN202170208U (en) | 2011-06-13 | 2011-06-13 | High-precision elevator leveling switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170208U true CN202170208U (en) | 2012-03-21 |
Family
ID=45828410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201961686U Expired - Fee Related CN202170208U (en) | 2011-06-13 | 2011-06-13 | High-precision elevator leveling switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832077A (en) * | 2011-06-13 | 2012-12-19 | 昕浪（上海）电子有限公司 | High-precision elevator leveling switch |
-
2011
- 2011-06-13 CN CN2011201961686U patent/CN202170208U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832077A (en) * | 2011-06-13 | 2012-12-19 | 昕浪（上海）电子有限公司 | High-precision elevator leveling switch |
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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: 20120321 Termination date: 20140613 |
|
| EXPY | Termination of patent right or utility model |