EP0838828B1 - Dispositif de commande par interrupteurs et citerne le mettant en oeuvre - Google Patents
Dispositif de commande par interrupteurs et citerne le mettant en oeuvre Download PDFInfo
- Publication number
- EP0838828B1 EP0838828B1 EP96402244A EP96402244A EP0838828B1 EP 0838828 B1 EP0838828 B1 EP 0838828B1 EP 96402244 A EP96402244 A EP 96402244A EP 96402244 A EP96402244 A EP 96402244A EP 0838828 B1 EP0838828 B1 EP 0838828B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switches
- tank
- switch
- detector
- circuit
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/006—Permanent magnet actuating reed switches comprising a plurality of reed switches, e.g. selectors or joystick-operated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/002—Switches with compound movement of handle or other operating part having an operating member rectilinearly slidable in different directions
Definitions
- the invention relates to a control device which is simple to manufacture, does not not requiring a waterproof, explosion-proof and ensuring auxiliary power source that the switches are well operated, even if the person carrying out the maneuver is pressed.
- control device according to the invention is defined in the claim 1.
- the operating member is a magnet and the switches are soft-blade switches called a reed blade.
- the invention also relates to a tank comprising an appearance detector of water which cooperates with an electrical information circuit with a switch, a switch intended to prevent a current source supplying the circuit electric flow after the detector has detected an appearance of water, and a means with switch for checking the correct functioning of the information circuit, the switches being integrated in a control device according to the invention.
- the control device shown in Figures 1 and 2 includes four switches 1, 2, 3, 4 with flexible blades arranged facing one face of a guide piece 5 comprising a slide 6 in staircase with four steps at 90 °. Each end of a step is facing a switch.
- a card 7 provided with a magnet 8 forming operating device.
- the operating member 8 When the operating member 8 arrives, the card 7 being inserted in room 5, at the non-free end of the first lap, it is opposite switch 4 and, to climb the staircase formed by the slide, the operator must change direction so that, before the change of direction, the magnet 8 is stationary and can act well on switch 4.
- the slide 6 is sawtooth making an angle of 45 °.
- the tank shown in Figure 4 is designated as a whole by the reference 11. It comprises a tank 12 surrounded by an envelope 13 which defines with the outer surface 14 of the tank 12 a sealed enclosure 15 of which sealing is provided by seals 16. An entry (no shown), fitted with a plug allows the introduction of anhydrous gas or fluid in enclosure 15.
- a detector 17 of the appearance of water connected by conductors 18,19 to an information means 110 making it possible to find out if the detector 17 has detected condensation.
- This means of information 110 is easily accessible to the user of the tank by being close to the surface of the sol S.
- the detector ( Figure 5) consists of an insulating membrane 111 electrically and thermally conductive, for example SILPAD 400 manufactured by the company BERGQUIST, one side of which is in permanent contact with the external surface 14 of the tank by means of a magnet 112, conductor of the heat, while the other face 113 is covered with a layer 114 of salt hygroscopic (LiCl, NaCl, or the like), the conductivity of which in solution is much larger than in crystallized form.
- two electrodes 115, 116 made of a stainless material (gold, platinum or the like), arranged in intimate contact with the face 113 of the membrane 111.
- a housing 117 plastic covers the inside of the detector enclosure to protect the layer of hygroscopic salt and can serve as a reserve of hygroscopic salt.
- a switch 118 with spring has its spring 138 mounted compressed between the bottom of the housing 117 forming a stop and the outer surface 14 of the tank with interposition of a pusher 139 provided with a pallet 140.
- the spring 138 relaxes because the bottom 117 moves away from the surface 14, the conductive paddle 140 comes into contact with two terminals 141, and is connected by two conductors 119,120 to each of the electrodes.
- Two conductors 18,19 connect the electrodes by means 110 of information after having passed through the sealed envelope 13 through orifices waterproof.
- This information means 110 includes an electrical circuit 121 connected to the terminals of the conductors 18,19 from the electrodes.
- the conductor 18 is connected to the base of a transistor 122, of which the transmitter is connected to a first branch 123a of a bistable relay 123 with two NF and NO positions.
- This bistable relay branch 123a is connected by a wire electrical on the one hand to a terminal of an electric current source 124 and on the other goes to the second branch of the bistable relay 123b with two positions NC and NO.
- This the latter is connected by an electric wire to a lamp 125, serving as a means of detection of current flow, itself connected to a manual switch 126 itself connected to the collector of transistor 122.
- the second source terminal of electric current 124 is also connected to the collector of transistor 122.
- a branch comprising a reset switch 127 and a coil 128 auxiliary is mounted between the electric current source terminal which is also connected to the bistable relay 123.
- the coil 129 is part of the bistable relay 123.
- Two other conductors 130, 131 are mounted on the terminals of the electrodes 115, 116 and connected, after having passed through the casing 13 in a sealed manner, by a check switch 132.
- the liquid or gas to be stored in the tank of the tank for example a liquefied petroleum gas and a gas or a fluid anhydrous in the sealed enclosure 15.
- the tightness of the enclosure 15 makes it possible to ensure that the outer surface 14 of the tank 12 is never subjected to a humid atmosphere, which protects it against corrosion. If nevertheless moisture manages to enter enclosure 15, it will ensue, due to the low temperature of liquefied petroleum gases in the lower part from the inside of the tank, that condensation water appears on the surface outside of the tank, and in particular in the bottom of the tank where the temperature is the lowest.
- This appearance of water is detected by the appearance detector 17 of water. Via conductors 18,19, information that water has been detected is transmitted to the lamp 125 which lets the user know that a intervention is necessary to prevent future corrosion of the tank 12.
- Switch 132 bypasses the electrodes and allows the current to pass between them. By closing it, the user can then verify that the means 110 information works normally, if the lamp comes on. If it does not light up not, it is that a defect exists in the information medium 110 (defective cable, defective components, etc.) and intervention is required.
- the user reopens the switch 126 manual and briefly closes the reset switch 127 which resets the bistable relay to its normal position by supplying the coil 129 relay auxiliary.
- the switch 126 and to the branch 123a Thanks to the switch 126 and to the branch 123a, the current source electric does not deliver during the whole time between the moment when water appeared and the moment when the user proceeds to his operations. This therefore allows ensure a very long battery life.
- a resistor 136 is mounted between the electrodes (115,116) in hygroscopic salt 114 inside a sheath 137 in one material highly absorbent of water and with low desorption.
Landscapes
- Push-Button Switches (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Description
- si la lampe s'allume, que du courant est passé entre les électrodes depuis la dernière fois que le relais bistable 123 se trouvait dans sa position normale (branche A fermée, branche B ouverte), (en général la dernière visite) ;
- si la lampe ne s'allume pas et s'allume lorsqu'il ferme l'interrupteur 132 de vérification qu'aucun courant n'a circulé depuis la dernière fois que le relais bistable a été mis en position normale.
Claims (5)
- Dispositif de commande comprenant au moins 3 interrupteurs (1, 2, 3, 4) et un organe de manoeuvre (8) commun à ces interrupteurs (1, 2, 3, 4) guidé dans une coulisse (6) dont quatre tronçons successifs font, deux à deux, un angle entre eux, les interrupteurs étant prévus en regard des sommets des angles formés par ces tronçons, caractérisé en ce que lesdits angles sont inférieurs à 120° et, de préférence, inférieur ou égal à 90°.
- Dispositif suivant la revendication 1, caractérisé en ce que l'organe de manoeuvre (8) est un aimant et les interrupteurs sont des interrupteurs à lame souple.
- Dispositif suivant la revendication 1 ou 2, caractérisé en ce que la coulisse est en dents de scie.
- Citerne comportantun détecteur (17) d'apparition d'eau qui coopère avec un circuit électrique d'information (110) à interrupteur (118),un interrupteur (23a) destiné à empêcher une source de courant alimentant le circuit électrique de débiter après que le détecteur (17) a détecté une apparition d'eau,un interrupteur (132) de vérification du bon fonctionnement du circuit d'information (110), etles interrupteurs (118,123a et 132) sont intégrés dans un dispositif de commande suivant l'une des revendications précédentes.
- L'utilisation d'un dispositif suivant l'une des revendications 1 à 3, dans une citerne.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69608803T DE69608803T2 (de) | 1996-10-22 | 1996-10-22 | Steuervorrichtung durch Schalter und damit versehenen Tank |
| AT96402244T ATE193786T1 (de) | 1996-10-22 | 1996-10-22 | Steuervorrichtung durch schalter und damit versehenen tank |
| ES96402244T ES2146370T3 (es) | 1996-10-22 | 1996-10-22 | Dispositivo de mando por interruptores y cisterna que lo utiliza. |
| EP96402244A EP0838828B1 (fr) | 1996-10-22 | 1996-10-22 | Dispositif de commande par interrupteurs et citerne le mettant en oeuvre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96402244A EP0838828B1 (fr) | 1996-10-22 | 1996-10-22 | Dispositif de commande par interrupteurs et citerne le mettant en oeuvre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0838828A1 EP0838828A1 (fr) | 1998-04-29 |
| EP0838828B1 true EP0838828B1 (fr) | 2000-06-07 |
Family
ID=8225303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96402244A Expired - Lifetime EP0838828B1 (fr) | 1996-10-22 | 1996-10-22 | Dispositif de commande par interrupteurs et citerne le mettant en oeuvre |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0838828B1 (fr) |
| AT (1) | ATE193786T1 (fr) |
| DE (1) | DE69608803T2 (fr) |
| ES (1) | ES2146370T3 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2128027B (en) * | 1982-10-01 | 1985-11-06 | Electronic Components Ltd | Gearbox indicator switch |
| DE4392581D2 (de) * | 1992-06-09 | 1995-04-27 | Bistekos Michael Georg | Einrichtung zur programmierbaren Steuerung von elektrischen bzw. elektronischen Geräten |
-
1996
- 1996-10-22 AT AT96402244T patent/ATE193786T1/de not_active IP Right Cessation
- 1996-10-22 ES ES96402244T patent/ES2146370T3/es not_active Expired - Lifetime
- 1996-10-22 DE DE69608803T patent/DE69608803T2/de not_active Expired - Fee Related
- 1996-10-22 EP EP96402244A patent/EP0838828B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2146370T3 (es) | 2000-08-01 |
| ATE193786T1 (de) | 2000-06-15 |
| DE69608803T2 (de) | 2001-01-11 |
| EP0838828A1 (fr) | 1998-04-29 |
| DE69608803D1 (de) | 2000-07-13 |
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