KR20210072442A - An Elevator Of Closed Type Self-Driven - Google Patents

Abstract

The present invention relates to a closed-type self-driven elevator comprising: a cage installed in an elevation passage of a building which extends up and down, so as to move up and down along the elevation passage; a rack part extending in a vertical direction in the building where the elevation passage is formed; a driving part installed in the cage and geared with the rack part to move the cage up and down along the rack part; a battery part installed in the cage and electrically connected to the driving part to supply power to the driving part; and a charging part charging power to the battery part, wherein the charging part comprises a first coil installed in the elevation passage and connected to an external power source, and a second coil installed in the cage and connected to the charging part to generate induced electromotive force from the first coil. Therefore, the present invention is capable of preventing shaking during driving and at a stop position.

Description

An Elevator Of Closed Type Self-Driven

The present invention relates to a closed-type self-driving elevator, and more particularly, to a closed-type self-driving elevator that can operate even in an emergency situation such as a fire, stops at an accurate position without backlash, and has excellent noise and vibration reduction characteristics is about

An elevator (Elevator) is a device that vertically transports people or cargo in response to gravity, and is widely used in high-rise buildings as well as low-rise buildings. In general, there are rope type elevators and hydraulic type elevators according to the driving method of elevators, and there are screw type, rack and pinion type, etc., and ropeless elevators using a linear motor instead of a hoisting machine have also appeared.

As shown in FIG. 1 of Korean Notice No. 1996-0012108, the elevator is provided with a counterweight 2 connected by a rope in a configuration to reduce the waste of power consumed when moving up and down. One side of the rope is connected to the upper part of the elevator counterweight (2) and the other end is connected to the upper part of the cage (1) via a pulley installed in the building. An auxiliary pulley is installed on one side of the pulley, and the rope passes through the pulley and the auxiliary pulley. The pulley is rotationally driven by a motor to raise and lower the cage 1 . Patent No. 1996-0012108 In addition to the rope-type elevator shown in FIG. 1, a counterweight is connected to a ropeless elevator by a rope passing through a pulley in order to reduce the waste of electric power consumed for lifting and lowering.

Conventional elevators have a structure in which a motor is operated by external power and are prohibited from use in emergency situations such as fire, etc. due to concerns about power cut off and rope breakage. In case of an emergency, evacuation through emergency stairs is a problem. there was In particular, in high-rise buildings, it is very difficult to evacuate through the emergency stairs, so there is a risk of loss of life.

Korean Patent Publication No. 1996-0012108 Patent Publication Republic of Korea Registration No. 10-1035068 Registration Patent Publication

The present invention has been proposed to solve the problems of the prior art as described above, and it is possible to operate even if there is a power outage in an emergency situation, the operation is quiet, high-speed driving and accurate position control are possible, and it is possible to lower dizziness during high-speed driving. An object of the present invention is to provide a closed self-driving elevator.

For the above purpose, the present invention provides a cage installed to be movable up and down along the elevating passage in the elevating passage of the building extending up and down, and a rack portion extending in the vertical direction in the building in which the elevating passage is formed, and is installed in the cage. a driving unit which meshes with the rack unit and moves the cage up and down along the rack unit; a battery unit installed in the cage and electrically connected to the driving unit to supply power to the driving unit; and a charging unit for charging power to the battery unit; The charging unit provides a closed self-driving elevator including a first coil installed in the hoistway and connected to an external power source, and a second coil installed in the cage and connected to the charging unit and generating an induced electromotive force from the first coil .

In the above, the first coil is characterized in that at least one of the layers is provided at a position facing the second coil in the cage stop position.

In the above, the elevating passage is opened to one side by two passage side walls facing each other and the passage inner wall having both sides connected to the passage side wall; The first coil is installed on at least one of the passage side wall and the passage inner wall, and it is characterized in that it is provided at a position facing the second coil at the cage stop position on at least one of the respective floors.

In the above, the first coil is installed on the sidewalls of the passageway on both sides, and the second coil is installed on the sidewalls of the cage facing the sidewalls of the passageway, respectively.

In the above, the elevator passage is formed by the outer surface of one side of the building; The first coil is installed on the outer surface of one side of the building forming the elevating passage, and it is characterized in that it is provided at a position facing the second coil at the cage stop position on one or more floors of each floor.

In the above, the lift passage is formed by two passage side walls facing each other and an inner passage wall on both sides connected to the passage side wall and is opened to one side; The rack unit is installed extending in the vertical direction on the side wall of the passage; The driving unit has a rack mating portion that meshes with the rack teeth of the rack unit, and is installed on the side of the cage facing the passage side walls on both sides to mesh with the rack teeth of the rack unit.

In the above, the elevator passage is formed by the outer surface of one side of the building; The rack unit is spaced apart from each other on the outer surface forming the elevating passage and is installed to form two or more rows and extend in the vertical direction; The driving unit has a rack mating portion that meshes with the rack teeth of the rack unit, and is installed on the front surface of the cage facing the outer surface to mesh with the rack teeth of the rack unit.

In the above, the driving unit includes a motor unit, and a driving output unit driven by the motor unit and having the rack engagement part, wherein the rack engagement part has a rod shape and consists of a plurality of rollers arranged at equal intervals along the circumferential direction, ; The rack teeth are formed in a concave curved shape so that the outer diameter surface of the roller constituting the rack teeth mating portion is in contact with the concave curved surface of the rack teeth and meshed with each other.

In the above, as the rack meshing part rotates during the lift driving, up to three rollers mesh with the three rack teeth, respectively, and at least two rollers mesh with the two rack teeth, respectively, so that the backlash is reduced. do it with

In the above, the driving unit includes a motor unit that rotates when power is supplied, and a driving output unit that is rotated by rotation of the motor unit; The motor unit includes a motor unit body coupled to a shaft provided in a cage, a cap spaced apart from each other in the axial direction and coupled to both sides of the motor unit body, an inner side of the cap and a radially outer side of the motor unit body, in a circumferential direction a stator part having a plurality of coils aligned along and facing each other in an axial direction, and a rotor part having a plurality of permanent magnets arranged in a circumferential direction between the stator parts spaced apart from each other; The drive output unit includes a driving surface formed to have one or more protrusions as an outer diameter surface of the rotor, and a plurality of guide grooves arranged in a circumferential direction on an axial inner surface that is opposite to the cap, and having a length in a radial direction and concave. And, a plurality of driving rollers having a circular cross-section and having both sides in the longitudinal direction slidably inserted in the guide groove along the longitudinal direction of the guide groove, and a plurality of driving rollers radially outward of the driving roller so as to be rotatable on the cap It characterized in that it comprises an output member coupled with a plurality of output gear portions concave along the circumferential direction on the inner diameter surface, and a rack engaging portion provided along the circumferential direction on the outer diameter side of the output member to mesh with the rack portion.

In the above, the driving surface is formed in a triangular or elliptical surface, characterized in that it may further include an elastic ring for pressing the roller inwardly toward the driving surface.

In the above, the output member includes output member flanges spaced apart in the axial direction and extending outward in the radial direction to face each other, and the rack-engaging portion has a circular bar shape extending in the axial direction and both ends rotate on the output member flange It is characterized in that it is formed of a plurality of rollers that are coupled to each other and are provided to be spaced apart along the circumferential direction.

The closed self-driving elevator according to the present invention can be operated even during a power outage, so it can be operated even in an emergency and used as an evacuation means. This has a possible effect.

1 is a perspective view showing the present invention closed self-driving elevator together with a part of the building,
Figure 2 is a perspective view showing a closed self-driving elevator excluding the building in Figure 1,
Figure 3 is an enlarged perspective view of the upper part of Figure 2,
4 is an enlarged perspective view of part 'A' of FIG. 3;
5 and 6 are schematic side views illustrating the engagement with the rack,
7 is a schematic cross-sectional view showing a driving unit included in the present invention closed self-driving elevator,
8 is a schematic cross-sectional view taken along line AA of FIG. 7 ,
9 is a partially enlarged view of FIG. 8 for explaining the operation of the driving output unit constituting the driving unit.

Hereinafter, a closed self-driving elevator according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the present invention closed self-driving elevator together with a part of the building, FIG. 2 is a perspective view showing the closed self-driving elevator excluding the building in FIG. 1, and FIG. 3 is an enlarged upper part of FIG. 4 is an enlarged perspective view of part 'A' of FIG. 3, FIGS. 5 and 6 are schematic side views illustrating the meshing with the rack, and FIG. 7 is the present invention closed self It is a schematic cross-sectional view showing the driving unit included in the driving elevator, FIG. 8 is a schematic cross-sectional view taken along line AA of FIG. 7, and FIG. 9 is a partial enlarged view of FIG. 8 shown to explain the operation of the driving output unit constituting the driving unit It is also

Hereinafter, the direction indicated by the arrow 'A' in FIG. 1 is the 'horizontal direction', the direction indicated by the arrow 'B' is the 'up and down direction', and the direction indicated by the arrow 'C' is described as the 'front-back direction'. do. In the description of the driving unit, the vertical direction of FIG. 7 will be described as an 'axial direction'.

In the description of the present invention, the building 200 in which the closed self-driving elevator is installed is not limited to a concrete building, but a concept including a steel structure and the like. In addition, the concept is not limited to the completed building, and includes a building under construction.

In FIG. 1, in order to clarify the description of the closed self-driving elevator of the present invention, it is installed in the elevator passage 211 of each floor of the building 200 and opened and closed together with the cage door 111 arriving at the corresponding floor. The city is omitted. When the cage 110 arrives at the called floor, it comes into contact with a sensor (not shown) such as a proximity sensor or a limit switch, electricity supplied to the driving unit 120 is cut off and stopped, and the motor of the door driving unit 160 is operated Accordingly, the cage door 111 and the door are opened together. When a predetermined time has elapsed, the cage door 111 and the door are closed together, and electricity is supplied to the driving unit 120 by a call signal to another floor, and the cage 110 is raised and lowered. The lifting and lowering of the cage 110 and the opening and closing of the cage door 111 are well-known techniques, and a description thereof will be omitted.

Reference numeral 217 in FIG. 1 shows a layered wall forming the floor and the ceiling of each layer. The door installed in the building is opened between the layer walls 217 and is formed.

The closed self-driving elevator of the present invention may also have a counterweight connected by a rope. As shown in FIG. 1 of Korean Publication No. 1996-0012108 Patent Publication, one side of the rope is connected to the upper part of the cage 110, and the other end is elevating via a pulley installed in the building 200 on the upper part of the hoistway. It is connected to a counterweight installed in the passage so as to be movable in the vertical direction. The closed self-driving elevator of the present invention is moved up and down by the driving unit 120 installed in the cage 110 , and the pulley through which the counterweight installation rope passes is not rotationally driven by a motor or the like.

As shown in FIGS. 1 to 3, the closed self-driving elevator of the present invention includes a cage 110 installed to be movable up and down along the elevating passage 211 in the elevating passage 211 of the building 200 extending up and down. , the rack unit 240 installed extending in the vertical direction in the building 200 having the elevating passage 211 formed therein, and the cage 110 installed in the cage 110 and meshed with the rack unit 240 along the rack unit 240. The driving unit 120 to move up and down, the battery unit 130 installed in the cage 110 and electrically connected to the driving unit 120 to supply power to the driving unit 120, and power to the battery unit 130 Includes a charging unit for charging.

The cage 110 will be described.

The cage 110 is provided with a cage door 111 that opens and closes at the front as a hollow rectangular parallelepiped having an accommodating space for accommodating cargo or people. The cage door 111 is opened and closed by sliding in pairs. A door driving unit 160 for opening and closing the cage door 111 including a motor is installed on the upper portion of the cage 110 . Since the door driving unit 160 that opens and closes the cage door 111 including the motor is a conventionally known technology, a description thereof will be omitted. A battery unit 130 for charging power is provided under the cage 110 . It is also possible that the battery unit 130 is installed on the upper part of the cage 110 , and the door driving part 160 is installed on the lower part of the cage 110 .

The charging part is demonstrated.

The charging unit includes a K first coil unit 230 and a second coil unit 140 .

The first coil unit 230 includes a first coil bracket 233 coupled to the building 200 by means of stud bolts, etc., and is installed on the first coil bracket 233 through the first coil bracket 233 for the building. and a first coil 231 installed on the 200 . The first coil 231 may be directly installed in the building 200 . The second coil unit 140 is installed on the second coil bracket 143 and the second coil bracket 143 coupled to the side surface of the cage 110 with a bolt or the like, and the second coil bracket 143 is used as a medium. and a second coil 141 installed in the cage 110 .

2 and 3 , the first coil 231 and the second coil 141 are illustrated in a state in which they are provided in an unshielded case.

In the second coil 141 , an induced electromotive force is generated from the first coil 231 and a current flows. The first coil 231 is installed in the elevator passage 211 , and is provided at a position facing the second coil 141 from the stop position of the cage 110 on one or more floors of each floor. The second coil 141 is provided in the cage 110 . The first coil 231 is electrically connected to an external power source to receive electricity, and the second coil 141 is electrically connected to the battery unit 130 . When a current flows in the first coil 231 connected to an external power source, an induced electromotive force is generated in the second coil 141 by the current flowing in the first coil 231, and an induced electromotive force is generated in the second coil 141 by the induced electromotive force. The flowing current flows, and the battery unit 130 is charged by the current flowing through the second coil 141 . A current may flow through the first coil 231 at all times, and a charging switch (not shown) is provided so that when the cage 110 is moved to the stop position, the charging switch is touched to allow current to flow in the first coil 231 . It is also possible to be controlled to When the first coil 231 and the second coil 141 face each other, the ratio of the charged power to the consumed power (charging efficiency) increases by allowing a current to flow through the first coil 231 .

The rack unit 240 will be described.

The rack unit 240 is installed to extend in the vertical direction to the building 200 . 2 to 4 , the rack unit 240 includes a rack bracket 243 fixedly installed in the building 200 and a rack 241 fixed to the rack bracket 243 . The rack bracket 243 may be fixedly installed to the building 200 by stud bolts, etc. (not shown). The rack 241 is coupled to the rack bracket 243 by a plurality of bolts spaced apart in the vertical direction. The rack 241 may not be provided with the rack bracket 243 and may be directly fixed to the building 200 by stud bolts or the like.

The rack 241 includes a plurality of rack teeth 241-1 arranged along the vertical direction on one side, and extends vertically on the opposite side where the rack teeth 241-1 are formed and is concave in a 'v' shape. A guide groove 241-3 is provided.

When a plurality of rack units 240 are installed on one side wall of a building, as shown in FIG. 3, the rack units 241-1 may be installed to face each other, and the rack guide grooves 241-3 may face each other. may be installed. And the rack teeth 241-1 on one side may be installed to face the rack guide grooves 241-3 on the other side.

The driving unit 120 will be described.

The driving unit 120 meshes with the rack unit 241-1 and when electricity is supplied according to a call signal, it rotates forward and backward and moves up and down along the rack unit 240, and the cage 110 in which the driving unit 120 is installed also moves up and down together. do. The drive unit 120 has a rack tooth meshing part 125 that meshes with the rack tooth 241-1, and is installed on one side of the cage 110 so as to face the rack tooth 241-1 on the side where the rack tooth 241-1 is formed. .

The driving unit 120 may be provided such that two or more driving units 120 are engaged with each other by being spaced apart in the vertical direction with respect to one rack 241 . As shown in FIG. 3 , a plurality (eg, two) of rack units 240 are installed in the building 200 on both sides of the cage 110 , and are spaced apart in the vertical direction to mesh with each rack unit 240 . (For example, two) driving units 120 are provided in the cage 110, and when moving up and down, the cage 110 is movable in the front-rear direction without shaking. A plurality of rack units 240 are provided on each side wall of the building, and the driving unit 120 is spaced apart from each other in the vertical direction in each rack unit 240 and meshed with a plurality of parts. is formed so that it can be moved without shaking when moving up and down.

The cage 110 is further provided with a driving guide roller 150 inserted into the rack guide groove 241-3 to perform vertical rolling motion along the rack guide groove 241-3. The driving guide roller 150 is provided on the opposite side to the driving unit 120 with the rack 241 interposed therebetween. The driving guide roller 150 is provided in the same number as the driving unit 120 . The driving guide roller 150 is rotatably installed in the cage 110 and has an outer diameter of a 'v' shape with a protruding center. At both sides in the width direction of the rack 241, one side meshes with the driving unit 120, and the other side is in contact with the driving guide roller 150 whose center protrudes in the rack guide groove 241-3 concave in a v' shape. Since it is supported on both sides of the width direction of the 241, it is possible to move without shaking in the vertical direction along the rack 241.

In FIG. 4 , reference numeral 110-1 shows a lifting bracket coupled to one side of the cage 110 by a bolt or the like, and the driving unit shaft S is provided on the lifting bracket 110-1 to drive the driving unit 110 . is coupled, and a roller shaft is provided so that the driving guide roller 150 is rotatably installed.

Since the drive guide roller 150 is provided on the opposite side in the width direction of the rack 241, it is supported from both sides and the shaking in the front and rear direction is further suppressed to make the movement quiet, and the v'-shaped concave rack guide groove 241 In 3), a driving guide roller 150 having a protruding center in a v' shape is inserted to perform rolling motion in the vertical direction, so that shaking in the horizontal direction is also suppressed.

The elevating passage 211 having a cross section of “┏┓” will be described.

The installation position of the first coil 231 in the elevating passage 211 of the cross-section "┏┓" shape will be described.

The elevating passage 211 is formed in a shape that is opened forward in a cross section of “┏┓”. The elevating passage 211 is opened forward by two passage side walls 215 spaced apart in the horizontal direction and facing each other and an inner passage wall 213 having both sides connected to the passage side wall 215 . Doors that open and close together with the cage door 111 are installed inside the walls 210 on both front sides of the passage side wall 215 that is opened forward. Since this is a known technique, a description thereof will be omitted.

The first coil 231 is provided at a position facing the second coil 141 installed in the cage 111 at a stop position of the cage 111 in one or more layers of each layer. The first coil 231 is installed on the passage side walls 215 on both sides. The second coil 141 is installed on both sides of the cage 111 facing the passage side wall 215 .

The first coil 231 may be provided on the passage inner wall 213 or may be provided on both the passage side wall 215 and the passage inner wall 213 . Since the second coil 141 is installed to face the first coil 231 , when the first coil 231 is provided on the inner passage wall 213 , the second coil 141 is a cage facing the inner passage wall 213 . (111) is installed on the rear side.

The installation of the rack unit 240 in the elevating passage 211 of the cross-section "┏┓" shape will be described.

The rack unit 240 is installed to extend in the vertical direction on the passage side walls 215 on both sides forming the elevating passage 211 . A plurality of rack units 240 may be installed on each of the passage side walls 215 on both sides. When a plurality of rack units 240 are installed on the passage side wall 215 , the rack units 240 are installed to be spaced apart from each other, and the first coil 231 is positioned between the rack units 240 spaced apart from each other.

The side of the cage 110 facing the passage side wall 215 is provided with a drive unit 120 that meshes with the rack teeth 241-1 of the rack 241 included in the rack unit 240, and the rack 241 is interposed between A driving guide roller 150 is installed which is inserted into the rack guide groove 241-3 formed in the rack 241 and performs a rolling motion. The driving unit 120 and the driving guide roller 150 are vertically spaced apart from each other and provided in plurality. A plurality of driving units 120 and a plurality of driving guide rollers 150 are provided respectively spaced apart from each other in the vertical direction with respect to one rack 241 . As shown in FIG. 3, two rack units 240 are installed on both passage side walls 215, respectively, and are spaced apart from each other in the vertical direction with respect to each rack unit 240. Two driving units 120 and a driving guide roller 150. may be provided. When installed as shown in FIG. 3 , eight driving units 120 and driving guide rollers 150 are provided in the cage 110 , two for each of the four rack units 240 .

One or more rack units 240 may be installed on the inner passage wall 213 , and the drive unit 120 and the drive guide roller 150 that mesh with the rack unit 240 installed on the inner passage wall 213 are cage 110 . A plurality of each may be installed on the rear side of the Of course, the rack unit 240 is not installed on the passage side wall 215, it is also possible to be installed only on the passage inner wall (213).

The outer wall of the building may be the elevator passage 211 .

An installation position of the first coil 231 in the hoistway 211 in which the outer wall of the building becomes the hoistway 211 will be described.

An outer wall of one side of the building 200 may be the elevator passage 211 . An opening in which the above-described door is installed is formed on an outer wall of one side of the building 200 serving as the elevator passage 211 for each floor. The cage 110 is installed to be movable in the vertical direction from the outside of the outer wall of the building 200 , and the cage door 111 is provided in the direction of the opening of the outer wall. A surface of the cage 110 facing the outer wall of the building 200 is referred to as an 'inner surface'. The cage door 111 is slidably installed on the inner surface of the cage 110 .

The first coil 231 is provided on at least one side of the opening at a position facing the second coil 141 installed in the cage 110 at the cage 111 stop position on one or more layers of each layer. The first coil 231 is installed on the outer surface of at least one side of the opening. The second coil 141 is installed on an inner surface facing the outer surface of the building 200 at a position facing the first coil 231 .

The first coil 231 is provided on the outer surface on both sides of the opening, and the second coil 141 is installed on the inner surface of the cage 110 facing the outer wall of the building 200 on both sides of the cage door 111 . can be

The installation of the rack unit 240 in the hoistway 211 in which the outer wall of the building 200 becomes the hoistway 211 will be described.

The rack unit 240 is installed to extend in the vertical direction on both sides of the opening on the outer surface of the building 200 forming the elevating passage 211 . The inner surface of the cage 110 facing the outer surface of the building 200 is provided with a driving unit 120 that meshes with the rack teeth 241-1 of the rack 241 included in the rack unit 240, and the rack 241 is provided. A driving guide roller 150 that is inserted into the rack guide groove 241-3 formed in the rack 241 and performs rolling motion is installed therebetween. The driving unit 120 and the driving guide roller 150 are vertically spaced apart from each other and provided in plurality. A plurality of driving units 120 and a plurality of driving guide rollers 150 are provided respectively spaced apart from each other in the vertical direction with respect to one rack 241 . Two rack units 240 are installed on the outer walls of both sides of the opening, respectively, and are spaced apart from each other in the vertical direction with respect to each rack unit 240 , and the two driving units 120 and the driving guide roller 150 may be provided. For example, four driving units 120 and a driving guide roller 150 are provided in the cage 110 , two for each of the two rack units 240 .

The meshing of the rack and the drive part is demonstrated.

The driving unit 120 includes a motor unit 121 that rotates when power is supplied, a drive output unit 123 having a rack-engaging unit 125 and rotated by rotation of the motor unit 121 .

The rack engagement part 125 has a circular bar shape in cross section and is formed of a plurality of rollers arranged at equal intervals along the circumferential direction, and the rack teeth 241-1 are formed in a concave curved arc shape. The inner surface of the rack teeth 241-1 is formed in a substantially semi-cylindrical surface. The outer diameter surface of the roller constituting the rack engagement portion 125 is engaged with the concave curved surface of the rack teeth 241-1.

As the driving output unit 123 rotates during the lift driving, a maximum of three rollers among the rollers constituting the rack engagement portion 125 mesh with the three rack teeth 241-1, respectively (see FIG. 5). In addition, at least two rollers among the rollers constituting the rack engagement portion 125 mesh with the two rack teeth 241-1 during the lift driving. Due to the pitch circle diameter (PCD) of the plurality of rollers, the spacing between the rollers, and the roller diameter, the rack engaging portion 125 engages the rack 241-1 with a maximum of three rollers depending on the rotational state, and a minimum of two rollers engage (see Fig. 6)

By engaging as described above, using the rack engaging portion 125 as a plurality of rollers aligned in the circumferential direction, and forming the rack 241-1 into an arc-shaped curved concave surface, the rack teeth 241-1 and the rack engaging portion ( 125), there is no backlash between them, so it operates precisely and suppresses the generation of noise and vibration.

The motor unit 121 includes a motor unit main body 1211 coupled to the driving unit shaft S provided in the cage 110, and a cap member spaced apart from each other in the axial direction and coupled to both sides of the motor unit body 1211. 1213 and a plurality of coils 1215-3 disposed inside the cap member 1213 and positioned radially outside the motor unit body 1211 and aligned in the circumferential direction, spaced apart from each other in the axial direction, facing each other and a stator part 1215 and a rotor part 1217 having a plurality of permanent magnets 1217 - 3 arranged in a circumferential direction between being spaced apart in the axial direction of the stator part 1215 .

The motor unit 121 is spaced apart from each other in the axial direction and has coils 1215-3 aligned in the circumferential direction, and permanent magnets arranged in the circumferential direction between the coils 1215-3 on both sides of the axial direction ( 1217-3) is an axial motor. In FIG. 7, reference numeral 1215-1 denotes a stator core on which a coil 1215-3 is wound.

The motor unit body 1211 is a cylindrical hollow body. Cap members 1213 are provided on both sides of the motor unit body 1211 in the axial direction. The cap member 1213 is provided in the form of a plate-shaped doughnut, and the motor unit body 1211 is coupled to the inner diameter side of the cap member 1213 . The two cap members 1213 are provided to face each other. A stator core 1215-1 and a coil 1215-3 wound around the stator core 1215-1 are arranged in a circumferential direction and spaced apart from each other in the axial direction inside the cap member 1213 facing each other.

The rotor part 1217 includes an annular part 1217-11 that is a donut-shaped flat plate, and a cylindrical rotating body 1217-1 on the radially outer side of the annular part 1217-11. Permanent magnets 1217-3 arranged to be spaced apart along the circumferential direction are provided in the annular portion 1217-11. A ring-shaped sensing member 1217-5 is coupled to the inner diameter surface of the annular portion 1217-11.

In FIG. 7 , reference numeral 1219 denotes a bearing installed between the rotating body 1217-1 and the cap member 1213 to rotatably support the rotating body 1217-1 with respect to the cap member 1213 .

A rotation sensing unit 1211-1 (Encoder) for sensing the rotation of the sensing member 1217-5 is installed on the outer diameter side of the motor unit main body 1211 to detect the rotation of the rotor unit 1217.

The outer diameter of the cap member 1213 is formed to be larger than the outer diameter of the rotating body 1217-1, and the inner surface of the cap member 1213 facing each other outside the outer diameter of the rotating body 1217-1 is equally spaced along the circumferential direction. A plurality of guide grooves 1213-1 are concavely spaced apart from each other. The guide groove 1213 - 1 has a length longer in a radial direction than a width in the circumferential direction.

The driving output unit 123 includes a driving surface 1235 formed to have one or more protrusions as an outer diameter surface of the rotating body 1217-1, and an axial inner surface facing the cap member 1213 in a circumferential direction. A plurality of guide grooves 1213-1 arranged in a radial direction and concave in length, and a rod shape having a circular cross section, and both sides of the guide grooves 1213-1 in the guide groove 1213-1 in the longitudinal direction. ) is rotatably coupled to the cap member 1213 in a radial direction outward of a plurality of driving rollers 1233 respectively inserted slidably along the radial direction that is the longitudinal direction of the driving roller 1233, and is circumferential to the inner diameter surface. An output member 1231 in which a plurality of output gear parts 1231-1 concave along the direction are formed, and a rack meshing part 125 provided along the circumferential direction on the outer diameter side of the output member 1231 to mesh with the rack part 240. include

The output gear unit 1231-1 has a curved arc-shaped tooth (eg, a cycloidal tooth) as shown in FIGS. 8 and 9 . The number of gears of the output gear unit 1231-1 is greater than that of the driving roller 1233 .

With respect to the driving surface 1235 , an elliptical surface may be mentioned as an example formed to have one or more protrusions, and the driving surface 1235 is formed in an elliptical surface. The elliptical surface is a shape in which the minor axis protrudes inward from the cylindrical surface and has two protrusions at the minor axis side. That is, it has a shape having two protrusions protruding in a 180° direction.

The driving output unit 123 further includes an elastic ring 127 for inwardly pressing the driving roller 1233 toward the driving surface 1235 . The elastic ring 127 is provided with a plurality of spaced apart in the axial direction. The elastic ring 127 is provided at both ends of the driving roller 1233 in the longitudinal direction. The elastic ring 127 is provided between the inner diameter of the output member 1231 and the driving roller 1233 to inwardly press the driving roller 1233 toward the driving surface 1235 .

The driving roller 1233 and the elastic ring 127 may be made of bearing steel.

The output member 1231 includes output member flanges 1231-3 extending outward in the radial direction and spaced apart from each other in the axial direction to face each other. A plurality of rollers constituting the rack engagement portion 125 are rotatably coupled at both ends to the output member flange 1231-3 in the form of a rod having a circular cross section extending in the axial direction, and are spaced apart at equal intervals along the circumferential direction. is provided with A roller support hole 1231-31 is formed in the output member flange 1231-3 in the axial direction, and both ends of the roller constituting the rack engagement portion 125 may be rotatably inserted.

When power is supplied to the coil 1215-3 of the motor unit 121, the rotating body 1217-1 rotates by magnetic force with the permanent magnet 1217-3. When the protrusion of the driving surface 1235 (the inner surface of the short axis in the case of an oval shape) presses the driving roller 1233 toward the output gear unit 1231-1 by the rotation of the rotating body 1217-1, the driving roller 1233 is By pressing the gear teeth of the output gear unit 1231-1, the output member 1231 rotates, the roller coupled to the output member 1231 revolves, and the cage 110) by the meshing of the roller and the rack teeth 241-1) moves up and down When the protrusion of the driving surface 1235 passes (to the inner surface of the long axis in the case of an oval shape), the driving roller 1233 returns to the driving surface 1235 by the restoring force of the elastic ring 127 .

In FIG. 7, reference numeral 122 denotes a bearing installed between the cap member 1213 and the output member 1231 to rotatably support the output member 1231 with respect to the cap member 1213, and reference numeral 124 denotes a cap member. It is installed between the outer diameter of 1213 and the output member 1231 to support the output member 1231 in the radial direction, the cross section shows a circular rod-shaped support roller.

110: cage 120: drive unit
130: charging unit 150: driving guide roller
160: door driving unit 200: building
240: rack unit

Claims (12)

A cage installed in the elevating passage of a building extending up and down so as to be movable up and down along the elevating passage, a rack portion extending in the vertical direction in a building in which the elevating passage is formed, and installed in the cage and meshing with the rack portion to move the cage along the rack portion a driving unit to move up and down, a battery unit installed in the cage and electrically connected to the driving unit to supply power to the driving unit, and a charging unit charging power to the battery unit;
The charging unit is a closed type self-driving, characterized in that it includes a first coil installed in the elevator passage and connected to an external power source, and a second coil installed in the cage and connected to the charging unit and generating an induced electromotive force from the first coil. elevator. The closed self-driving elevator according to claim 1, wherein the first coil is provided at a position facing the second coil in a cage stop position on at least one of the respective floors. The method according to claim 1, wherein the lift passage is opened to one side by two passage side walls facing each other and a passage inner wall having both sides connected to the passage side wall; The first coil is installed on at least one of the side wall of the passage and the inner wall of the passage, and the closed type self-driving elevator, characterized in that it is provided on at least one of the floors at a position facing the second coil in the cage stop position. The closed type self-driving elevator according to claim 2, wherein the first coil is installed on the sidewalls of the passageways on both sides, and the second coils are respectively installed on the sidewalls of the cage facing the sidewalls of the passageway. The method of claim 1, wherein the hoistway is formed by an outer surface of one side of the building; The first coil is installed on the outer surface of one side of the building forming the hoistway, and is a closed self-driving elevator, characterized in that it is provided at a position facing the second coil in the cage stop position on one or more floors of each floor. The method according to claim 1, wherein the lift passage is formed by two passage side walls facing each other and an inner passage wall having both sides connected to the passage side wall and is opened to one side; The rack unit is installed extending in the vertical direction on the side wall of the passage;
The driving unit has a rack mating portion that meshes with the rack teeth of the rack, and is installed on the side of the cage facing the passage side walls on both sides to mesh with the rack teeth of the rack unit. The method of claim 1, wherein the hoistway is formed by an outer surface of one side of the building; The rack unit is spaced apart from each other on the outer surface forming the elevating passage and is installed to form two or more rows and extend in the vertical direction;
The driving unit has a rack mating portion that meshes with the rack teeth of the rack, and is installed on the front side of the cage facing the outer surface to mesh with the rack teeth of the rack unit. The method according to claim 6 or 7, wherein the driving unit includes a motor unit and a meshing driving unit driven by the motor unit and having the rack meshing part, wherein the rack meshing part has a rod shape and is spaced at equal intervals along the circumferential direction. consists of a plurality of rollers aligned; The closed type self-driving elevator, characterized in that the rack teeth are formed in a concave curved shape so that the outer diameter surface of the roller constituting the meshing driving part comes into contact with the concave curved surface of the rack teeth and meshes. 9. The method of claim 8, wherein the meshing drive unit rotates during the lift driving, and among the plurality of rollers constituting the meshing drive unit, up to three rollers mesh with the three rack teeth, respectively, and at least two rollers mesh with the two rack teeth, respectively. closed self-driving elevators. The method of claim 1, wherein the driving unit includes a motor unit that rotates when power is supplied, and a driving output unit that rotates by rotation of the motor unit;
The motor unit includes a motor unit body coupled to a shaft provided in a cage, a cap member spaced apart in the axial direction and coupled to both sides of the motor unit body, an inner side of the cap member and radially outer side of the motor unit body, a stator part having a plurality of coils aligned in a circumferential direction and facing each other while being spaced apart from each other in an axial direction; and a rotor part having a plurality of permanent magnets arranged in a circumferential direction between the stator parts spaced apart from each other;
The driving output unit includes a driving surface formed to have one or more protrusions as an outer diameter surface of the rotor, and a plurality of guides arranged in a circumferential direction on an axial inner surface, which is a surface facing the cap member, in a radial direction, and concavely formed. A groove, a plurality of driving rollers in the form of a rod having a circular cross section, both sides of which are slidably inserted into the guide groove along the longitudinal direction of the guide groove, and the driving roller rotates on the cap member radially outward A closed self comprising an output member coupled to an inner diameter surface with a plurality of output gear portions concave along the circumferential direction, and a rack meshing portion provided along the circumferential direction on the outer diameter side of the output member to mesh with the rack portion. driven elevator. [11] The closed self-driving elevator according to claim 10, wherein the driving surface is formed in a triangular or elliptical surface, and may further include an elastic ring for pressing the roller inwardly toward the driving surface. 12. The method of claim 11, wherein the output member includes output member flanges spaced apart in the axial direction and extending outward in the radial direction to face each other, and the meshing driving unit outputs both ends in the form of a rod having a circular cross section extending in the axial direction. A closed self-driving elevator, characterized in that it is rotatably coupled to the member flange and is formed of a plurality of rollers that are provided spaced apart along the circumferential direction.

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