WO2018050182A1 - Système d'actionneur linéaire - Google Patents

Système d'actionneur linéaire Download PDF

Info

Publication number
WO2018050182A1
WO2018050182A1 PCT/DK2017/000015 DK2017000015W WO2018050182A1 WO 2018050182 A1 WO2018050182 A1 WO 2018050182A1 DK 2017000015 W DK2017000015 W DK 2017000015W WO 2018050182 A1 WO2018050182 A1 WO 2018050182A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow
linear actuator
power supply
box
actuator system
Prior art date
Application number
PCT/DK2017/000015
Other languages
English (en)
Inventor
Rolf JØRGENSEN
Original Assignee
Linak A/S
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 Linak A/S filed Critical Linak A/S
Publication of WO2018050182A1 publication Critical patent/WO2018050182A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/18—Turning devices for rotatable members, e.g. shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2084—Perpendicular arrangement of drive motor to screw axis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Definitions

  • the invention relates to a linear actuator and at least one box with a hollow for receiving a power supply, where the linear actuator comprises an electric motor, a transmission, a spindle unit with a spindle and a spindle nut and an activation element in connection with the spindle unit, and where the electric motor through the transmission drives the spindle unit, by which the activation element moves back and forth depending on the direction of rotation of the motor.
  • US 9,070,957 B2 to TiMotion discloses a control and power supply unit for connection with one or more linear actuators, which thus constitutes a linear actuator system.
  • the control and power supply unit consists of two separate units which are screwed together to an assembled unit.
  • the power supply has a closed housing in which two battery packs are located.
  • the housing is constituted by an injection molded rectangular box with a hollow and a cover which is secured to the box by means of four screws.
  • linear actuator systems are exposed to vibrations and shocks, which can damage the power supply and in particular the battery packs.
  • the housing as well as the battery packs can rupture such that e.g. water and dust can get in. At best this can cause the linear actuator system to fail safely, but at worst such a defect can cause personal injury.
  • the purpose of the invention is to provide an inexpensive box for a linear actuator system, which provides a better protection for the power supply.
  • the actuator system comprises a linear actuator and at least one box
  • the linear actuator comprises a housing, an electric motor with a transmission, a spindle unit with a spindle and a spindle nut, and an activation element in connection with the spindle unit, and where the electric motor through the transmission drives the spindle unit, by which the activation element moves back and forth depending on the direction of rotation of the electric motor
  • the box comprises a power supply and a hollow for receiving the power supply.
  • the box in the linear actuator system in characteristic in that the hollow comprises retention means for retaining the power supply in at least one direction. Thus, the box will be more capable of withstanding the shocks and vibrations which occur during use/operation.
  • the hollow comprises an opening through which the power supply is received.
  • the hollow comprises in an embodiment a wall in which the retention means for retaining the power supply are located.
  • the retention means is a spring element.
  • the spring element renders it possible for power supplies with different outer dimensional tolerances to be received.
  • the box will be more capable of withstanding shocks and vibrations, as the elasticity of the spring element makes it possible to absorb some of the energy, which might affects the actuator system including the box.
  • the retention means comprise barbs, which form tracks and indentations in the power supply when this is placed in the hollow.
  • the spring element is more capable of maintaining its retention.
  • the hollow of the box comprises an insertable partition wall, which divides the hollow into two, each of which can receive a power supply.
  • the insertable partition wall can in an embodiment be received and fixed in two opposite slots in the hollow.
  • the insertable partition wall can comprise a snap lock prepared for engagement and retention in the hollow, and can further comprise a snap lock prepared for engagement with the power supply.
  • the box can be fixed in another direction where forces will first be received in the partition wall through the snap lock for the power supply and from there they will be led into the hollow via the snap lock for this purpose of the partition wall.
  • the box comprises a rear cover for closing the hollow of the box.
  • the rear cover comprises a pin prepared for engagement with the snap lock for the power supply on the partition wall, such that these are tilted and retained in engagement with the power supply.
  • the rear cover thus only functions as a tight-fitting lid for the hollow and is thus not part of the retention of the power supply.
  • the rear cover can thus be constructed with the sole purpose of creating a good sealing.
  • the hollow comprises an end wall, side walls, an upper wall and a lower wall.
  • the lower wall comprises a recess in which the spring element is located.
  • the spring element comprises a tiltable resilient flap which can tilt about an axis perpendicular to the plane of the side wall.
  • the spring element comprises two tiltable resilient flaps, the respective free ends of which face towards each other.
  • the free ends are connected to a semicircular connection element, which has its opening facing towards the hollow.
  • the resilient flaps reach into the hollow in their resting position.
  • the spring element will push the power supply against an opposite wall in the hollow thus retaining the power supply in one direction.
  • the spring element will render it possible to receive power supplies with different tolerances on the outer dimension.
  • the main components of the linear actuator outlined in fig. 1 are constituted by a housing 1 , a reversible electric motor 2, a transmission 2a, a spindle unit 3 with a spindle 3a, on which a spindle nut 3b is located, an activation element 4 in the form of a length of tube, which with a rear end is secured to the spindle nut 3b.
  • the linear actuator further comprises an outer tube 5, which with a rear end is secured to the housing 1 .
  • the outer tube 5 surrounds the spindle unit 3 and the activation element 4 and functions as a guide for the activation element 4 and the spindle nut 3b.
  • a front mounting 6 and rear mounting 7 serve for mounting the linear actuator in the construction in which the linear actuator should be build-in.
  • the front mounting 6 is secured to the front end of the activation element 4, and the rear mounting 7 to the rear end of the housing.
  • Fig. 2 of the drawing shows a perspective view of the linear actuator, which in a linear actuator system can be connected to a box 8 as shown in Fig. 3.
  • the box is in Fig. 3 shown in perspective from the top towards the front end of the box.
  • the box 8 is equipped with an opening cover 9.
  • a socket 10 In both sides and at the end of the space there are lead-ins 1 1 for cables such that these can be pulled out to one or the other side or out through the end.
  • the cover 9 is closed the edge thereof will hold the cables in place in the lead-ins 1 1 .
  • the box 8 is shown in perspective from the top towards the rear end with and without rear cover 12, respectively.
  • the box comprises a hollow 13 with an end wall 14, two side walls 15,16, an upper wall 17 and a lower wall 18.
  • the hollow 13 can be divided with a space divider in the form of a partition wall 19 (see fig. 8), which is inserted into a track 20,21 in the upper wall 17 and lower wall 18, respectively.
  • the partition wall 19 is fixed in the longitudinal direction of the tracks by means of a snap lock 22 on the partition wall 19, which cooperates with a recess 23 in the lower wall 18.
  • the two partial hollows of the divided hollow 13 are in the following designated 13a, 13b, see fig. 10.
  • Each partial hollow 13a, 13b can receive an external unit in the form of a power supply 24 (see fig. 9), which e.g. can be an energy storage, a battery pack or a transformer.
  • the power supply 24 is designed as an oblong rectangular box.
  • the lower wall 18 comprises eight identical spring elements 24, which are thus referenced with one single reference numeral, namely 25.
  • the spring element 25 is integrated in a recess or hole 26 in the lower wall 18.
  • Each spring element 25 consists of two tiltable resilient flaps 27,28, which can tilt about an axis perpendicular to the plane of the side walls 15,16.
  • the resilient flaps 27,28 are oppositely hinged such that their respective free ends face towards one another.
  • the two free ends of the resilient flaps 27,28 are further connected to a semicircular connection element 29.
  • the opening of the semicircular connection element 29 faces towards the hollow 13.
  • the connection element also has resilient properties. In the resting position of the spring element 25 the resilient flaps 27, 28 reach into the hollow 13.
  • Each of the partial hollows 13a,13b comprises four spring elements 25.
  • each of the spring elements 30,31 has three resilient flaps 30a- c, 31 a-c with barbs.
  • the resilient flaps 30a-c,31 a-c are integrated in a recess or hole in the side wall 15,16.
  • the resilient flaps 30a- c,31 a-c In their resting position the resilient flaps 30a- c,31 a-c reach into the hollow 13 and are tiltable about an axis perpendicular to the plane of the lower and upper wall 17,18. Together with the side walls 15,16 the respective resilient flaps 30a-c,31 a-c form a V-shape with an opening towards the rear wall 14 of the hollow 16.
  • the resilient flaps 30a-c,31 a-c will be pushed inwards against the respective side walls 15,16.
  • the barbs on the resilient flaps 30a-c,31 a-c will make longitudinal tracks in the stretch of wall of the power supply 24 which faces towards the side wall 15,16 when the power supply 24 is inserted into the hollow 13.
  • the resilient flaps 30a-c,31 a-c are pushed against the side walls 15,16 they accumulate potential energy and push the power supply 24 against the partition wall 19. Further, the barbs will claw themselves further into the surface of the power supply 24, when the power supply 24 is pushed all the way in against the rear wall 14 of the hollow 13.
  • the partition wall 19 comprises two snap locks 32,33 which are reversely placed in continuation of the part of the partition wall 19, which faces out towards the opening of the hollow 13.
  • Each snap lock 32,33 has an indentation which is prepared for engagement with the stretch of wall of the power supply 24, which faces out towards the opening of the hollow 13.
  • the rear cover 12 On the side which faces towards the hollow the rear cover 12 has a pin 34, which is prepared for concurrent engagement with the two snap locks 32,33.
  • the pin 34 will push the two snap locks 32,33 in the opposite direction i.e. away from each other and thus bring them into engagement with the power supply 24.
  • each partial hollow 13a,13b will receive a power supply 24 such that the box 8 can accommodate a total of two power supplies 24.
  • the spring elements 25 and the spring elements 30,31 and the snap locks 32,33 are all retention means, which individually can retain the power supply 24 in one direction of movement. Concurrently they can retain the power supply 24 in all three directions of movement.
  • the spring elements will further be able to function as a buffer or damper which can absorb the energy from e.g. shocks which the linear actuator system and thus also the box are exposed to during use.
  • the box 8 the rear cover 12 and the partition wall 19 will be made from a polymer and the spring element 30,31 made from a metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

La présente invention concerne un système d'actionneur linéaire comprenant un actionneur linéaire et au moins une boîte (8), l'actionneur linéaire comprenant un boîtier (1), un moteur électrique avec une transmission, une unité broche comportant une broche et un écrou de broche, et un élément d'activation en liaison avec l'unité broche, et le moteur électrique, par l'intermédiaire de la transmission, entraînant l'unité broche, au moyen de laquelle l'élément d'activation se déplace en va-et-vient en fonction du sens de rotation du moteur électrique, et la boîte comprenant une alimentation électrique et un creux destiné à recevoir l'alimentation électrique. La boîte dans le système d'actionneur linéaire est caractérisée en ce que le creux comprend un moyen de retenue destiné à retenir l'alimentation électrique dans au moins un sens. Ainsi, la boîte sera davantage à même de résister aux chocs et aux vibrations qui se produisent au cours de l'utilisation.
PCT/DK2017/000015 2016-09-19 2017-09-19 Système d'actionneur linéaire WO2018050182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201600548 2016-09-19
DKPA201600548 2016-09-19

Publications (1)

Publication Number Publication Date
WO2018050182A1 true WO2018050182A1 (fr) 2018-03-22

Family

ID=61619831

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2017/000015 WO2018050182A1 (fr) 2016-09-19 2017-09-19 Système d'actionneur linéaire

Country Status (1)

Country Link
WO (1) WO2018050182A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119156A (ja) * 1986-11-07 1988-05-23 Canon Inc 電池用コネクタ
EP0494505A2 (fr) * 1991-01-11 1992-07-15 Physio-Control Corporation Paquet de batteries
EP0918358A1 (fr) * 1997-03-11 1999-05-26 Toyota Jidosha Kabushiki Kaisha Ensemble batterie
DE202012102020U1 (de) * 2012-04-10 2012-06-26 Timotion Technology Co., Ltd. Stromversorgungseinrichtung für eine Linearaktorvorrichtung sowie Batteriemodul hierfür
DE102011007382A1 (de) * 2011-04-14 2012-10-18 Bayerische Motoren Werke Aktiengesellschaft Energiespeichermodul aus mehreren prismatischen Speicherzellen und Verfahren zur Herstellung einer Endplatte des Energiespeichermoduls
WO2016074678A1 (fr) * 2014-11-12 2016-05-19 Linak A/S Système d'actionneur linéaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119156A (ja) * 1986-11-07 1988-05-23 Canon Inc 電池用コネクタ
EP0494505A2 (fr) * 1991-01-11 1992-07-15 Physio-Control Corporation Paquet de batteries
EP0918358A1 (fr) * 1997-03-11 1999-05-26 Toyota Jidosha Kabushiki Kaisha Ensemble batterie
DE102011007382A1 (de) * 2011-04-14 2012-10-18 Bayerische Motoren Werke Aktiengesellschaft Energiespeichermodul aus mehreren prismatischen Speicherzellen und Verfahren zur Herstellung einer Endplatte des Energiespeichermoduls
DE202012102020U1 (de) * 2012-04-10 2012-06-26 Timotion Technology Co., Ltd. Stromversorgungseinrichtung für eine Linearaktorvorrichtung sowie Batteriemodul hierfür
WO2016074678A1 (fr) * 2014-11-12 2016-05-19 Linak A/S Système d'actionneur linéaire

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