WO2021176111A1 - Dispositif connecteur électrique pour ceintures d'ascenseurs - Google Patents

Dispositif connecteur électrique pour ceintures d'ascenseurs Download PDF

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Publication number
WO2021176111A1
WO2021176111A1 PCT/ES2020/070151 ES2020070151W WO2021176111A1 WO 2021176111 A1 WO2021176111 A1 WO 2021176111A1 ES 2020070151 W ES2020070151 W ES 2020070151W WO 2021176111 A1 WO2021176111 A1 WO 2021176111A1
Authority
WO
WIPO (PCT)
Prior art keywords
suspension
connector device
elements
electrical
slot
Prior art date
Application number
PCT/ES2020/070151
Other languages
English (en)
Spanish (es)
Inventor
Rafael GONZÁLEZ GALLEGOS
Original Assignee
Dinacell Electrónica S.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dinacell Electrónica S.L. filed Critical Dinacell Electrónica S.L.
Priority to PCT/ES2020/070151 priority Critical patent/WO2021176111A1/fr
Publication of WO2021176111A1 publication Critical patent/WO2021176111A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2406—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having needles or pins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2491—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by conductive cams or wedges

Definitions

  • the present invention relates to an electrical connector device that makes a conductive electrical connection with a suspension tensioning element, in belt format, of an elevator.
  • an elevator comprises a load suspension element such as a cable or a strap that supports the weight of an elevator car and an elevator counterweight, allowing the elevator car to move. vertically inside the elevator shaft on request.
  • steel cables have been used with or without any type of external protective covering.
  • steel wire tapes or belts externally coated with a protective plastic cover are being introduced.
  • the belt supports the tensile forces that the suspension tensioning element must withstand.
  • the tape includes a plurality of suspension tensioning elements such as single or braided steel wires embedded within the outer protective cover, similar to an electrical current conductor, where the electrical conductor is externally covered by a jacket of Electrical isolation. Due to the plastic cover, it is not easy to visualize the condition or damage caused to the wires.
  • the electrical insulation jacket of the suspension tape protects the suspension tensioning elements and is made of an insulating plastic material such as polyurethane.
  • the assembly is more flexible than traditional cables and the belt can accommodate smaller diameter pulleys.
  • the contact of the belt with the different components of the lift suspension is smoother and quieter.
  • Suspension tensioning elements are a critical component in terms of safety. If a failure occurs or a breakage of these could lead to a fall of the elevator car, which would imply material and personal damage, to minimize this risk, a safety element is available in the system such as parachutes, brakes, wedging systems and others, and periodic inspections and replacements are carried out.
  • test units are used to check the mechanical condition of the suspension tensioning elements, which provide criteria for replacing the suspension tensioning elements in the event of a deterioration or periodic change of the suspension elements in order to avoid a potential failure of the lifting system.
  • the contact element either accesses the wires through the free ends or the electrical insulation jacket, which surrounds the suspension tensioning elements, must be pierced to contact them.
  • the contact element enables a test current or electrical signal to be passed through the suspension tensioning elements.
  • the electrical test signal is used to determine the condition of the suspension tensioning elements.
  • the present invention seeks to solve one or more of the drawbacks set forth above by means of an electrical connector device as defined in the claims.
  • the electrical connector device is configured to provide electrical contact with the wires of a suspension tape comprising at least two elements one next to another suspension tensioning element within a plane and surrounded by an electrical insulation jacket.
  • the electrical connector device establishes a punctual, safe and reliable electrical contact with each of the suspension tensioning elements, wires, of the suspension tape, which allows analyzing the status of all or each of the suspension tensioning elements.
  • the electrical connector device is easy to mount on the suspension strap, as it requires the use of few tools, and the cost of manufacturing it is low. Also, the operation of the electrical connector device is simple.
  • the electrical connector device comprises a housing having a through slot through which the suspension tape is inserted.
  • the casing comprises an eccentric element that can be rotated with respect to its same axis and a distributor holding element movable vertically with respect to the through groove, a plurality of perforating elements, equal in number to the number of suspension tensioning elements, in electrical contact with an evaluation unit.
  • the piercing elements are arranged side by side with the other piercing element within at least one plane orthogonal to the plane of the suspension tape; that is, the elements perforators are arranged parallel to each other within an orthogonal or staggered plane distributed in at least two planes orthogonal to the plane of the suspension tape.
  • the piercing elements are configured to penetrate the electrical insulating jacket of the suspension tape to respectively establish a single electrical connection between a piercing element and a suspension tensioning element. Consequently, the electrical contact between the suspension tensioning elements and the piercing electrical contact elements takes place in a direction perpendicular to the plane of the suspension tape.
  • the distributor holding element is adjustable by means of the eccentric element so that it can perform a sliding vertical movement from a rest position to a working position where the suspension tape steps against the perforating elements, which pierce the electrical insulation jacket of the tape. suspension.
  • this element exerts a piercing clamping force on the suspension tape towards the piercing elements, so that the clamping force is maintained as long as the actuation of the eccentric element does not cease.
  • the eccentric element of the cam type, cam screw or the like is mounted in the housing with the possibility of rotating with respect to a longitudinal axis of this cam.
  • the pressing element is mounted in the casing with the possibility of vertical movement, along an axis perpendicular to the longitudinal axis of the eccentric element.
  • the holding element presses the tape against the perforating elements.
  • the holding element can remain static and the cam actuate the piercing elements, so that the suspension tape is pressed by the piercing elements against the holding element.
  • the clamping plunger element has a movement regulated by the controlled movement of the eccentric element that steps with uniform and controlled pressure on the support tape arranged in the through groove of the casing so that the piercing elements penetrate the insulation jacket. electric suspension tape.
  • the holding element can be retracted from the working position to the rest position or simply stop pressing the belt, being able to remove the electrical contact established between the piercing elements and the suspension tensioning elements.
  • the eccentric element has a free outer portion of the casing and accessible from the outside of this casing, so that an operator can manipulate the free outer portion of the eccentric element to carry out the regulation of the passage in the advance of the element. eccentric and, consequently, of the vertical sliding of the holding element between the rest position and the working position and vice versa.
  • the eccentric element makes it possible to select the advancement of the holding element with precision, simplicity and comfort that allows distributing the drilling pressure force exerted by the perforating elements on the electrical insulation jacket of the suspension tape.
  • the holding element has limited the vertical sliding travel from the rest position to the working position, which prevents the suspension tensioning elements from breaking, but ensures the perforation of the electrical insulating jacket of the suspension tape.
  • the position of the eccentric element and the sliding vertical path is a function of the thickness of the electrical insulation jacket and the diameter of the suspension tensioning elements, in short, the thickness of the suspension tape.
  • the piercing elements have dimensions and sizes that allow a regulated and controlled conductive electrical connection to be established between the suspension tensioning elements and the evaluation unit. This established electrical contact requires the piercing elements to pass through the electrical insulation jacket of the suspension tape, preventing the piercing elements from deviating from the intended piercing direction when piercing the electrical insulation jacket, which could prevent contact. with the suspension tensioning elements and, in addition, the piercing elements could also come into contact with other adjacent suspension tensioning elements, establishing a short circuit between two adjacent suspension tensioning elements, being undesirable, or not coming into contact with any tensioning element of suspension by piercing the electrical insulation jacket of the suspension tape.
  • Figure 1 shows in a perspective and elevation view an electrical connecting device that is installed on a suspension belt
  • Figure 2 shows in a perspective view the electrical connecting device ready to be mounted on the suspension belt
  • Figure 3 shows in a perspective view the electrical connecting device in mounting arrangement on the suspension strap
  • Figure 4 shows an eccentric element, a holding element and the electrical input contacts of an evaluation unit corresponding to the electrical connecting device Detailed description
  • An elevator installation comprises an elevator car, a counterweight and the at least one flat suspension belt 115, as well as a driving pulley associated with a drive motor.
  • the drive pulley drives the flat suspension belt 115 and thereby moves the elevator car and the counterweight in opposite directions.
  • An elevator control controls the drive motor.
  • the elevator car is configured to house people and / or goods and transport them between the floors of a building.
  • the elevator car and the counterweight are guided along guides and are also hung from suspension pulleys.
  • the flat suspension strap 115 is attached to a flat strap attachment device 115 and first surrounds the suspension pole with the counterweight. Next, the flat suspension belt 115 passes over the driving pulley, surrounds the suspension pulleys of the elevator car and is finally attached to a point by another suspension means fixing device.
  • the flat suspension strap 115 is attached to the building by means of the flat strap attachments 115.
  • the flat strap attachments 115 transmit the tensile forces of the flat strap 115 to the building.
  • a free end of the flat suspension strap 115 is inserted through a through slot 114 of an electrical connector device 12.
  • the electrical connector device 111 may be located near one end of the flat suspension strap 115 or elsewhere on this flat strap 115.
  • an electrical connector device 111 is disposed at each of the two free ends of the flat suspension tape 115.
  • the free ends of the flat suspension tape 115 are not subjected to the pulling force produced in the flat suspension tape. suspension 115, since this traction force is previously transmitted to the building through the fixings of the flat suspension belt 115.
  • the flat suspension belt 115 comprises at least two suspension tensioning elements 117 one after another suspension tensioning element 117 parallel to each other within a plane and surrounded by an electrical insulation jacket 116.
  • the suspension tensioning elements 117 are of the such as steel wires, other electrically conductive materials, or plastic cords with individual strands of an electrically conductive material.
  • the flat suspension tape 115 does not require any type of treatment prior to insertion through the through slot 114, it is not necessary to uncover any section of the flat suspension tape 115 to establish an electrical contact with the corresponding piercing element 211,
  • figure 1 shows a perspective of the electrical connector device 111 in a position to be mounted on the flat suspension strap 115 and in an assembly arrangement, where the flat suspension strap is visible on one side and on the other side opposite to the previous one. window side housing 112 of electrical connector device 111,
  • the electrical connector device 111 comprises a housing 112 having the through slot 114 through which the flat suspension strap 115 is insertable, the through slot 114 having two openings located on parallel and mutually opposite outer surfaces of the housing 112.
  • the section of flat suspension tape 115 that is inside the through slot 114 is covered by the corresponding section of electrical insulation jacket 116 and, consequently, the piercing elements 211 are arranged on a surface interior of the through slot 114 that connects with both openings opposed to each other.
  • the piercing elements 211 are distributed along the inner surface of the through slot 114 side by side with another piercing element 211 within at least one plane orthogonal to the plane of the suspension tape 115; that is, the perforating elements 211 are arranged parallel to each other within a single orthogonal plane, in a staggered fashion, distributed in at least two planes orthogonal to the plane of the suspension belt 115 in parallel rows, so that each row corresponds to the middle of the gaps in the immediate row, which form equilateral triangles, since the separation distance between the suspension tensioning elements 117 is reduced and erroneous electrical contacts between the piercing elements 211 and the suspension tensioning elements 117 are avoided.
  • the piercing elements 211 are configured to pierce the electrical insulating jacket 116, in order to establish electrical contact with the corresponding suspension tensioning element 117 of the flat belt 115.
  • the casing 112 comprises at least a first casing part 118, a second casing part 119, and a third casing part 121 which can be held together by casing fixing elements 122, being detachably connected to each other at a stacked sandwich configuration.
  • casing fixing elements 122 being detachably connected to each other at a stacked sandwich configuration.
  • the piercing elements 211 are arranged on a first inner surface of the through slot 114, facing a corresponding outer surface of the flat suspension tape 115, and facing another outer surface of the tape.
  • flat suspension 115 a second inner surface of the through groove 114 opposite the first outer surface of the flat suspension belt 115 is arranged a distributor plunger element 411 actuated through an eccentric element 113, which can be rotated around a longitudinal axis of this element. Consequently, the flat suspension strap 115 is disposed between the piercing elements 211 and the distributor plunger member 411 if the flat suspension strap 115 is in mounting arrangement, inserted through the through slot 114 of the housing 112.
  • the through slot 114 is a guide so that, when joining the first casing part 118 and the third casing part 121 on both opposite and facing sides of the second casing part 119, the flat suspension strap 115 will not be can slide sideways from the mounting arrangement.
  • the eccentric element 113 is arranged projecting from an outer surface of the second part of the casing 119, so that it presents a free portion 412 outside the casing 112, therefore accessible from the outside of this casing 112, and a inner portion 413 opposite the free outer portion 412 that is mechanically coupled to the distributor clamping element 411, so that an operator can manipulate the free outer portion 412 of the eccentric element 113 to effect the regulation of the pitch in the advance of the pressing element distributor 411 and, consequently, of the vertical sliding of this clamp 411 between the rest position and the work position and vice versa.
  • the eccentric element 113 makes it possible to transform a regulated and controlled rotation into a vertical sliding movement of the distributor holding element 411 which, in turn, is also regulated and controlled.
  • the distributor pressing element 411 presses or pushes the flat suspension belt 115 against the perforating elements 211.
  • the regulated and controlled vertical sliding movement of the distributor pressing element 411 makes it possible to ensure that the electrical insulation jacket 116 is perforated by the perforating elements 211, establishing electrical contacts with the corresponding suspension tensioning elements 117.
  • the housing 112 of the electrical connector device 111 is preferably made of a rigid material, such as rigid plastic, plastic coated with metal structures, or rigid metal.
  • the housing 112 is configured flexibly so that the housing 112 can exert force on the flat suspension strap 115 without changing the shape of the strap.
  • the distributor plunger element 411 exerts an evenly distributed piercing clamping force on the flat suspension belt 115 which enables each suspension tensioning element 117 to be kept separate and in position as it moves towards the piercing elements 211.
  • the piercing end of piercing element 211 is dimensioned to pierce through the thickness of the electrical insulating jacket 118 of the flat suspension strap 115 and to establish a reliable electrical connection with the suspension tensioning element 117.
  • the piercing end of the piercing member 211 and the suspension tensioning member 117, in a use situation, are arranged in opposite positions.
  • the piercing elements 211 extend from the point of electrical contact with the suspension tensioning elements 117 within the housing 112 to establish an electrical connection with an evaluation unit 414.
  • the piercing elements 211 are electrically connected to the evaluation unit 414 and to the suspension tensioning elements 117 which together form an electrical circuit for the transmission and processing of electrical signals to immediately determine in which suspension tensioning element 117 has been produced a defect.
  • the electrical characteristics of the electrical circuit comprising at least two suspension tensioning elements 117 are determined. Then, this measured electrical characteristic is compared with a threshold value and it is determined whether it is greater or less than the threshold value.
  • the threshold value is chosen in such a way that a measured electrical characteristic greater than the threshold value makes it possible to deduce that a suspension tensioning element 117 is interrupted, torn, torn, in short, defective. LIST OF NUMERICAL REFERENCES

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  • Multi-Conductor Connections (AREA)

Abstract

L'invention concerne un dispositif connecteur électrique installable autour d'une section d'un ruban de suspension (115) d'un élévateur, la ceinture de suspension (115) comprenant au moins deux éléments tendeurs de suspension (117), l'un à la suite de l'autre élément tendeur de suspension (117), parallèles entre eux et entourés d'une chemise d'isolation électrique (116), le dispositif connecteur électrique (111) comprenant un bâti (112) qui comprend une rainure traversante (114) dans laquelle peut être insérée la ceinture plane de suspension (115), une pluralité d'éléments perforateurs (211) distribués régulièrement sur une première surface intérieure de la rainure traversante (114), un élément de serrage distributeur (411) est disposé au niveau d'une seconde surface intérieure de la rainure traversante (114) opposée à la première surface intérieure de la rainure traversante (114) et est actionnable par l'intermédiaire d'un élément excentrique (113) pouvant tourner autour d'un axe longitudinal de cet élément (113).
PCT/ES2020/070151 2020-03-03 2020-03-03 Dispositif connecteur électrique pour ceintures d'ascenseurs WO2021176111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2020/070151 WO2021176111A1 (fr) 2020-03-03 2020-03-03 Dispositif connecteur électrique pour ceintures d'ascenseurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2020/070151 WO2021176111A1 (fr) 2020-03-03 2020-03-03 Dispositif connecteur électrique pour ceintures d'ascenseurs

Publications (1)

Publication Number Publication Date
WO2021176111A1 true WO2021176111A1 (fr) 2021-09-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952002A (en) * 1958-09-19 1960-09-06 Angele Wilhelm Electrical connector for flat cables
WO2011098847A1 (fr) * 2010-02-10 2011-08-18 Otis Elevator Company Courroie de système d'ascenseur ayant des dispositifs de raccordement fixés à cette dernière
CN104134873A (zh) * 2014-05-27 2014-11-05 杭州优迈科技有限公司 一种用于割破电梯承重构件的电连接器装置
EP3021421A1 (fr) * 2014-11-12 2016-05-18 Weidmüller Interface GmbH & Co. KG Dispositif de raccordement pour cable multiconducteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952002A (en) * 1958-09-19 1960-09-06 Angele Wilhelm Electrical connector for flat cables
WO2011098847A1 (fr) * 2010-02-10 2011-08-18 Otis Elevator Company Courroie de système d'ascenseur ayant des dispositifs de raccordement fixés à cette dernière
CN104134873A (zh) * 2014-05-27 2014-11-05 杭州优迈科技有限公司 一种用于割破电梯承重构件的电连接器装置
EP3021421A1 (fr) * 2014-11-12 2016-05-18 Weidmüller Interface GmbH & Co. KG Dispositif de raccordement pour cable multiconducteur

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