WO2020054911A1

WO2020054911A1 - Linear motor for elevator

Info

Publication number: WO2020054911A1
Application number: PCT/KR2018/014332
Authority: WO
Inventors: 주대석
Original assignee: 현대엘리베이터주식회사
Priority date: 2018-09-10
Filing date: 2018-11-21
Publication date: 2020-03-19

Abstract

The present invention relates to a linear motor for an elevator, wherein a plurality of stators installed in a hoistway are separately installed so that gaps are present therebetween. Consequently: not only are manufacturing and installation convenient, but the installation time can be significantly reduced; not only is a separate connecting operation not required during installation, but errors can be easily corrected by adjusting the gaps between the stators; and it is possible to simply remove and replace a portion of the stators in some sections even when repairing or replacing the stators. Therefore, maintenance and other inspection operations can be very quickly and conveniently performed.

Description

[Correction 23.01.2019 under Rule 26] Linear motor for elevator

The present invention relates to a linear motor for an elevator. More specifically, by separating and installing a plurality of stators installed in the hoistway so that a gap exists between them, not only is it easy to manufacture and install, but also can significantly shorten the installation work time, and separate connection work is unnecessary during the installation work. In addition, it is easy to correct the error by adjusting the gap of the stator, and even in the case of repair and replacement work for the stator, it is possible to simply remove and replace the stator in some sections, so that repair work and other inspection work can be performed very quickly and conveniently It relates to a linear motor for an elevator.

An elevator is a device that elevates passengers or cargo along a hoistway formed along a vertical direction of a building, and a general elevator is an elevator car disposed to be able to elevate within a hoistway, and a counterweight connected by an elevator car and a wire rope. ), The so-called rope-type elevator having a hoisting machine for driving the elevator car and the counterweight up and down by frictionally contacting the wire rope on the upper side of the hoistway to rotate forward and backward.

However, the rope type elevator has a problem in terms of efficiency and stability because the length of the rope becomes longer when the height of the elevator is high because the elevator car is suspended from the rope. First of all, with current technology, only one car can be driven in a single hoistway, and only vertical movement is possible, so there are many disadvantages in terms of transportation efficiency. In addition, the height of the hoistway is also limited due to the weight and safety issues of the ropes and accessory parts, and for this reason, the height of the building is also limited.

Accordingly, in response to the trend of ultra-high-rise buildings, technical research on elevators for the transportation of personnel inside the building has been continuously conducted.

In order to operate an elevator system suitable for a high-rise building, it is necessary to overcome the limitations of the existing rope driving method, and a new concept elevator driven by a new actuator must be introduced.

In addition, in addition to the problems related to the driving method and the actuator as the driving source, a new type of elevator capable of maximizing transportation efficiency and space utilization suitable for a building structure is inevitably required.

Given these conditions, an elevator applicable to a high-rise building can operate multiple elevator cars simultaneously within a single passageway, and the elevator car can move freely in the vertical / horizontal direction along the three-dimensional passageway inside the building. It should be able to demonstrate its function as a comprehensive transportation system that can be used in connection with buildings and underpasses.

The elevator currently used adopts an elevator driving method by traction of the rope, so it is necessary to consider the load and vibration characteristics of the elevator car in proportion to the number of floors when designing, and it is impossible to change the vertical / horizontal direction of the elevator car. Since it has the limitations of, the alternative structure to overcome this should be urgently prepared.

As a solution to these problems, elevators using linear motors have been actively studied in recent years. When an elevator is driven using a linear motor, a conventional wire rope is unnecessary, and thus more various driving methods can be realized.

The linear motor type elevator is generally installed by installing a stator along a guide rail of a hoistway and installing a mover in an elevator car, and is configured to move the elevator car vertically and horizontally using electromagnetic force of the stator and the mover.

At this time, the stator is generally formed as one integral type along the guide rail, and as the stator is integrally formed in this way, the installation work is very difficult and takes a long time, and the arrangement state in the entire section is due to tolerances, etc. It is difficult to maintain accurately, and accordingly, an error occurs during an elevator driving process or a problem such as failure to maintain a stable driving state occurs.

The present invention was invented to solve the problems of the prior art, and the object of the present invention is to separate and install a plurality of stators installed in a hoistway so that a gap exists between each other, thereby facilitating production and installation work, as well as installation time. It is to provide a linear motor for an elevator that can be significantly shortened.

Another object of the present invention is a separate connection operation is unnecessary during the installation operation, so that the installation operation is easy, and the error is easily corrected by adjusting the gap of the stator. It is to provide a linear motor for elevators that can be removed and replaced to perform repair work and other inspection work very quickly and conveniently.

Another object of the present invention is that even if the amount of thermal deformation of the stator increases due to a change in temperature conditions according to the environment, the amount of thermal deformation can be compensated by the gap of the stator, thereby minimizing the overall dimensional change, and thus always stable It is to provide a linear motor for an elevator that can maintain driving performance.

Another object of the present invention, even if a gap exists between a plurality of stators installed in a hoistway, so that the magnetic flux flow does not pass through the gap, the magnetic flux flow is always stably and smoothly, thereby stably driving the propulsive force by electromagnetic force. It is to provide a linear motor for an elevator that can be generated.

The present invention is a linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to an elevator car so as to face each other on both sides of the stator module, wherein the stator module is an elevator A plurality of stators along the driving direction of the car are installed in a spaced apart arrangement so as to have a gap, the mover module and the stator module flow of magnetic flux formed through the mover module and the stator module passes through the gap of the stator It provides a linear motor for an elevator characterized in that it is formed so as not to be made in the form.

In this case, the plurality of stators each include a central field iron core portion formed along the driving direction of the elevator car, and first and second protruding portions respectively protruding a plurality of both sides of the central field iron core portion. The first and second protruding portions may be disposed to be offset from each other on both sides of the central field iron core portion.

In addition, the plurality of first protrusions may be spaced apart to have the same spacing, and the plurality of second protrusions may be spaced apart at the same spacing so as to be positioned between the spacings of the first protrusions.

In addition, a plurality of the stators may be arranged to maintain the same spacing between two stators adjacent to each other by adjusting the gap therebetween.

In addition, the mover module, the stator module is disposed to be opposed to each other on both sides, the intermediate slot is formed in the middle region and the first and second protruding toward the stator module in both regions around the middle slot Two armature iron cores on which mover teeth are formed; A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And an armature winding wound around the armature iron core through the intermediate slot.

In addition, the magnet module may be formed in a form in which permanent magnets having different polarities are alternately arranged in a row at the same spacing as the pitch P of the first and second protrusions.

In addition, the magnet module alternates each other with a permanent magnet having the same polarity with each other, and a protruding pole disposed in an area adjacent to the permanent magnet is the same as the protruding pitch P, which is the spacing between the first and second protruding portions. It can be formed in a form arranged in line.

In addition, the arrangement interval between the permanent magnets mounted on the first mover teeth adjacent to the second mover teeth and the permanent magnets adjacent to the first mover teeth among the permanent magnets mounted on the second mover teeth is the It may be formed by m times the pitch P of the protruding poles P (where m is a natural number).

In addition, the spacing between the protrusions adjacent to the second mover tooth among the protrusions mounted on the first mover tooth and the protrusions adjacent to the first mover tooth among the protrusions mounted on the second mover tooth is the protrusion pitch P ) M times (where m is a natural number).

In addition, the distance from the center of the first mover tooth of the armature iron core to the center of the second mover tooth may be formed at n times (where n is a natural number) of the protruding pitch P.

On the other hand, the present invention is a linear motor for an elevator that includes a stator module installed along the driving direction of the elevator car and a mover module coupled to the elevator car so as to face each other on both sides of the stator module, wherein the stator module Is installed in a form arranged in a row spaced apart so as to have a plurality of stators, a plurality of the stator, respectively, on the both sides of the center field iron core portion and the center field iron core portion disposed long along the driving direction of the elevator car Each of the first and second protruding portions are formed to be protruded so as to be offset from each other at equal intervals, and the mover module is disposed opposite to each other on the stator module, and an intermediate slot is formed in the middle region. Protruding toward the stator module in both regions around the middle slot Is two armature iron cores on which the first and second mover teeth are formed; A magnet module mounted opposite to each other on first and second mover teeth of the two armature iron cores; And an armature winding wound on the armature iron core through the intermediate slot, wherein the magnet module has a permanent magnet having a different polarity from each other, and an arrangement gap equal to a protruding pitch P, which is an arrangement spacing of the first and second protruding parts. It is formed in an alternately arranged in a row, and when the first and second mover teeth have the same polarity arrangement of the permanent magnets, the tooth pitch Pt, which is the arrangement interval of the first and second mover teeth, is the It provides a linear motor for elevators, characterized in that formed at (2n-1) times (where n is a natural number of 2 or more) of the protruding pitch P.

At this time, when the polarity of the permanent magnets in the first and second mover teeth are different from each other, the tooth pitch Pt is (2n) times the protruding pitch P (where n is a natural number of 2 or more). It can be formed of.

Further, if the permanent magnets adjacent to the second mover tooth among the permanent magnets mounted on the first mover tooth and the permanent magnets adjacent to the first mover tooth among the permanent magnets mounted on the second mover tooth are the same polarity, corresponding The spacing between the permanent magnets may be formed by (2m-1) times (where m is a natural number) of the protruding pitch P.

In addition, if the permanent magnets adjacent to the second mover tooth among the permanent magnets mounted on the first mover tooth and the permanent magnets adjacent to the first mover tooth among the permanent magnets mounted on the second mover tooth are different polarities, the corresponding The spacing between permanent magnets may be formed by (2m) times (where m is a natural number) of the protruding pitch P.

On the other hand, the present invention is a linear motor for an elevator that includes a stator module installed along the driving direction of the elevator car and a mover module coupled to the elevator car so as to face each other on both sides of the stator module, wherein the stator module Is installed in a form arranged in a row spaced apart so as to have a plurality of stators, a plurality of the stator, respectively, on the both sides of the center field iron core portion and the center field iron core portion disposed long along the driving direction of the elevator car Each of the first and second protruding portions are formed to be protruded so as to be offset from each other at equal intervals, and the mover module is disposed opposite to each other on the stator module, and an intermediate slot is formed in the middle region. Protruding toward the stator module in both regions around the middle slot Is two armature iron cores on which the first and second mover teeth are formed; A magnet module mounted opposite to each other on first and second mover teeth of the two armature iron cores; And an armature winding wound around the armature iron core through the intermediate slot, wherein the magnet module includes permanent magnets having the same polarity with each other, and protruding poles disposed in regions adjacent to the permanent magnets are the first and second protruding poles. It is formed in the form of being alternately arranged in line with each other at the same arrangement interval as the protruding pitch P, which is a negative arrangement interval, and when the alternating arrangement states of the permanent magnet and the protruding poles in the first and second mover values are the same, the first Provides a linear motor for an elevator, characterized in that the tooth pitch (Pt), which is the spacing between the first and second mover teeth, is formed by (2n-1) times (where n is a natural number greater than or equal to 2) of the protruding pitch P. do.

At this time, when the alternate arrangement of the permanent magnet and the protruding poles in the first and second mover teeth is different from each other, the tooth pitch Pt is (2n) times the protruding pitch P (where n is 2 or more) Natural water).

In addition, both the permanent magnet mounted on the first mover tooth and the object closest to the second mover value among the permanent magnets and protrusions mounted on the second mover tooth, and the object closest to the first mover value among the permanent mover and stone poles mounted on the second mover tooth. If they are the same as the permanent magnets or the protruding poles, the spacing between the permanent magnets or the protruding poles may be formed by (2m-1) times the protruding pitch P (where m is a natural number).

In addition, among the permanent magnets and protrusions mounted on the first mover tooth, the object closest to the second mover value, and among the permanent magnets and protrusions mounted on the second mover tooth, the object closest to the first mover value is If one is a permanent magnet and the other is a different pole, the spacing between the permanent magnet and the pole may be formed by (2m) times (where m is a natural number) of the pitch P of the pole.

In addition, the first and second mover teeth may be formed to have the same width that protrudes toward the stator module.

On the other hand, the present invention is a linear motor for an elevator that includes a stator module installed along the driving direction of the elevator car and a mover module coupled to the elevator car so as to face each other on both sides of the stator module, wherein the stator module Is installed in a form arranged in a row spaced apart so as to have a plurality of stators, a plurality of the stator, respectively, on the both sides of the center field iron core portion and the center field iron core portion disposed long along the driving direction of the elevator car Each of the first and second protruding portions are formed to be protruded so as to be offset from each other at equal intervals, and the mover module is disposed opposite to each other on the stator module, and an intermediate slot is formed in the middle region. Protruding toward the stator module in both regions around the middle slot Is two armature iron cores on which the first and second mover teeth are formed; A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And an armature winding wound on the armature iron core through the intermediate slot, wherein the magnet module has a permanent magnet having a different polarity from each other, and an arrangement gap equal to a protruding pitch P, which is an arrangement spacing of the first and second protruding parts. It is formed in an alternately arranged in a row, when the gap (d) between a plurality of the stator is installed over the width (bw) of the first and second protrusions, nP + bw ≤ d <(n + 1) In the P + bw range, the number of permanent magnets of the magnet module is set to (n + 4) or more, where n is an integer of 0 or more to provide a linear motor for an elevator.

At this time, when the gap d between the plurality of stators is installed less than the width bw of the first and second protrusions, the number of permanent magnets of the magnet module may be set to 3 or more.

On the other hand, the present invention is a linear motor for an elevator that includes a stator module installed along the driving direction of the elevator car and a mover module coupled to the elevator car so as to face each other on both sides of the stator module, wherein the stator module Is installed in a form arranged in a row spaced apart so as to have a plurality of stators, a plurality of the stator, respectively, on the both sides of the center field iron core portion and the center field iron core portion disposed long along the driving direction of the elevator car Each of the first and second protruding portions are formed to be protruded so as to be offset from each other at equal intervals, and the mover module is disposed opposite to each other on the stator module, and an intermediate slot is formed in the middle region. Protruding toward the stator module in both regions around the middle slot Is two armature iron cores on which the first and second mover teeth are formed; A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And an armature winding wound around the armature iron core through the intermediate slot, wherein the magnet module includes permanent magnets having the same polarity with each other, and protruding poles disposed in regions adjacent to the permanent magnets, the first and second. It is formed in a form arranged in a row alternately with each other at the same spacing as the spacing P of the protrusions, which is the spacing between protrusions, and a gap d between the plurality of stators is greater than or equal to the width bw of the first and second protrusions. When installed as nP + bw ≤ d <(n + 1) P + bw, the total number of permanent magnets and protrusions of the magnet module is set to (n + 4) or greater, where n is an integer greater than or equal to 0 It provides a linear motor for elevators, characterized in that.

In this case, when the gap d between the plurality of stators is less than the width bw of the first and second protrusions, the total number of permanent magnets and protrusions of the magnet module may be set to 3 or more.

In addition, a plurality of the stators are arranged between the first and second protruding portions adjacent to each other among the first and second protruding portions formed in two adjacent stators formed by adjusting the gap d therebetween. It may be installed to be maintained at n times (where n is a natural number) of P).

In addition, the arrangement interval between the permanent magnets mounted on the first mover teeth adjacent to the second mover teeth and the permanent magnets adjacent to the first mover teeth among the permanent magnets mounted on the second mover teeth is the It may be formed at n times the pitch of the protruding poles P (where n is a natural number).

In addition, the spacing between the protrusions adjacent to the second mover tooth among the protrusions mounted on the first mover tooth and the protrusions adjacent to the first mover tooth among the protrusions mounted on the second mover tooth is the protrusion pitch P ) N times (where n is a natural number).

According to the present invention, by separating and installing a plurality of stators installed in the hoistway so that a gap exists between each other, it is possible to not only facilitate manufacturing and installation work, but also significantly reduce installation work time.

In addition, it is easy to install because no separate connection work is required during installation work, and it is easy to correct errors by adjusting the gap of the stator. Therefore, maintenance work and other inspection work can also be performed very quickly and conveniently.

In addition, even if the amount of thermal deformation of the stator increases due to a change in temperature conditions according to the environment, the amount of thermal deformation can be compensated by the gap of the stator, thereby minimizing the overall dimensional change, and accordingly, maintaining stable driving performance. It has an effect.

In addition, even if a gap exists between a plurality of stators installed in the hoistway, the magnetic flux flow is always stably and smoothly made by preventing the magnetic flux flow from passing through the gap, thereby stably generating propulsion by electromagnetic force. There is.

1 is a view conceptually showing the installation structure of a linear motor for an elevator according to an embodiment of the present invention,

Figure 2 is a cross-sectional view taken along the line "A-A" of Figure 1 to explain the internal structure of the elevator linear motor according to an embodiment of the present invention,

3 is a view conceptually showing the configuration of a stator module of an elevator linear motor according to an embodiment of the present invention;

4 is a view conceptually showing the configuration of the mover module of the elevator linear motor according to an embodiment of the present invention;

5 is a view for explaining the principle of the magnetic flux flow of the elevator linear motor according to an embodiment of the present invention,

6 and 7 is a diagram conceptually showing the magnetic flux flow state of the linear motor for an elevator according to an embodiment of the present invention,

8 to 10 are views exemplarily showing various forms of the mover module according to an embodiment of the present invention,

11 is a view for explaining a magnetic flux flow method for the basic structure of a linear motor according to an embodiment of the present invention,

12 is a view for explaining a problem of magnetic flux flow that may occur in the basic structure of a linear motor according to an embodiment of the present invention;

13 is a view for explaining the basic structure of a linear motor that solves the problem of magnetic flux flow shown in FIG. 12;

14 is a view for explaining the permanent magnet arrangement structure of the mover module according to an embodiment of the present invention,

15 and 16 exemplarily show the magnetic flux flow generated in the arrangement structure of the permanent magnet according to an embodiment of the present invention,

17 is a view for explaining the relationship between the gap size of the stator module and the number of permanent magnets according to an embodiment of the present invention;

18 is a view for explaining a winding method for the armature winding of the mover module according to an embodiment of the present invention,

19 is a view schematically showing another form of a linear motor according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, when adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known configurations or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

1 is a diagram conceptually showing an installation structure of an elevator linear motor according to an embodiment of the present invention, and FIG. 2 is a view illustrating an internal structure of an elevator linear motor according to an embodiment of the present invention. 3 is a cross-sectional view taken along the line “AA”, FIG. 3 is a diagram conceptually showing a configuration for a stator module of an elevator linear motor according to an embodiment of the present invention, and FIG. 4 is a view showing an embodiment of the present invention. It is a diagram conceptually showing the configuration of the mover module of the linear motor for an elevator according to the present invention, and FIG. 5 is a view for explaining the principle of magnetic flux flow of the linear motor for an elevator according to an embodiment of the present invention.

The linear motor for an elevator according to an embodiment of the present invention is a device capable of more conveniently performing an installation operation and a maintenance operation, and the stator module 40 that is long disposed in a hoistway along the traveling direction of the elevator car 10 And, it comprises a mover module 50 coupled to the elevator car 10 so as to face each other on both sides of the stator module 40 along the longitudinal direction of the stator module 40.

As shown in FIG. 1, a hoistway in which the elevator car 10 can move is installed inside the building. In the elevator device of the linear motor type, the hoistway may be installed not only vertically but also in a horizontal direction and inclined direction. The elevator car 10 moves along the hoistway through a linear motor or the like.

A guide rail 30 may be installed on the hoistway wall 20 of the hoistway along the direction of the hoistway, and when the guide rail 30 is installed, the elevator car 10 moves along the guide rail 30 within the hoistway However, at this time, the elevator car 10 is moved by the linear motor 60.

The linear motor 60 includes a stator module 40 and a mover module 50, and the stator module 40 is long installed in the hoistway along the traveling direction of the elevator car 10. The stator module 40 may be directly installed on the hoistway wall 20 of the hoistway, and when the guide rail 30 is installed on the hoistway wall 20, it is formed long along the guide rail 30 to guide rail 30 It can be installed in a form that is coupled to one end of the. The mover module 50 is coupled and fixed to the elevator car 10 to be located on both sides of the stator module 40 along the longitudinal direction of the stator module 40. The propulsive force is generated by the electromagnetic force generated between the stator module 40 and the mover module 50, and the mover module 50 and the elevator car 10 move along the stator module 40 by the propulsion force.

Stator module 40 according to an embodiment of the present invention is installed in a form arranged in a row spaced apart a plurality of stator 100 along the guide rail 30 to have a certain gap (d).

That is, in one embodiment of the present invention, unlike the prior art, the stator is not integrally formed, but the stator 100 is provided in a plurality of relatively short lengths and installed in a separate form having a certain gap d.

At this time, the mover module 50 and the stator module 40 are formed such that the flow of magnetic flux formed through the mover module 50 and the stator module 40 does not pass through the gap d of the stator 100. Is formed.

Thus, the flux flow through the mover module 50 and the stator module 40 is formed so as not to pass through the gap d of the stator 100, so that even if the gap d exists in the stator module 40, The magnetic flux flow stably occurs without interruption or sudden drop, and the propulsion by electromagnetic force is stably generated.

In addition, since the stator module 40 that is installed along the hoistway is separately installed by a plurality of stators 100, it is not only easy to manufacture and install the stator module 40, but also can significantly shorten the installation work time. .

In the case of the stator module according to the prior art, since the stator module is installed as one unit in the entire section of the hoistway along the guide rail, it is necessary to connect all the stator module connection parts by welding or the like during the installation process. Thereafter, even in the case of repair and replacement work for the stator module, since the repair work must be performed in a manner such as cutting a portion of the integral stator module, there is a problem that the work is very difficult and difficult.

However, the stator module 40 according to an embodiment of the present invention separates and installs a plurality of stators 100 in a form having a certain gap (d), so that a separate connection operation is unnecessary during the installation operation. In addition to this, it is easy to correct the error through adjustment of the gap (d), and even when repairing and replacing the stator module 40, the stator 100 in some sections can be simply partially removed and replaced for maintenance work and other checks. Work can also be done very quickly and conveniently.

In addition, when the stator module 40 is integrally formed long, the amount of thermal deformation of the stator module 40 increases due to a change in temperature conditions according to the environment, and accordingly, a dimensional change occurs, resulting in a problem in driving performance when driving the elevator. In the embodiment of the present invention, since the stator module 40 is separately installed through a plurality of stators 100, the amount of heat distortion can be compensated by the gap d even if thermal deformation occurs. The dimensional change can be minimized, and accordingly, stable driving performance can be maintained at all times.

Looking at the detailed configuration in more detail, first, the plurality of stators 100 may be formed in the same form, and each stator 100 is a central field iron core formed long along the traveling direction of the elevator car 10 It may be configured to include a first protruding portion 120 and a second protruding portion 130, which are respectively protruded on both sides of the central field

iron core portion

110 and 110.

At this time, the first protruding portion 120 and the second protruding portion 130 are arranged to be offset from each other along the width direction of the central field iron core portion 110. More specifically, the first protrusion 120 is formed to protrude on one side of the central field iron core 110, and the second protrusion 130 protrudes on the other side of the center field iron core 110. It is formed, the first protrusion 120 and the second protrusion 130 is formed in the same protruding shape. The plurality of first protruding parts 120 are spaced apart to have the same disposition gap 2P, and the plurality of second protruding parts 130 are the same disposition spacing so as to be located between the spaced apart spaces of the first protruding parts 120 (2P). In addition, since the second protrusion 130 is located in the middle of the separation interval of the first protrusion 120, the placement distance of the first protrusion 120 and the second protrusion 130 is also the same placement interval P Have

The stator 100 having the plurality of first protruding parts 120 and the second protruding part 130 has a gap d, and a plurality of stators are arranged in line, and the spacing (2P) of the first protruding parts 120 is arranged. ) Are arranged to remain the same between the two stators 100 adjacent to each other. The arrangement spacing 2P of the second protrusion 130 is likewise arranged to remain the same between the two stator 100 adjacent to each other.

That is, as illustrated in FIG. 3, the spacing between the first protrusion 120 and the second protrusion 130 that are disposed to be offset from each other is P, and the spacing between the first protrusion 120 and the second protrusion The spacing between the poles 130 is 2P. At this time, there is a gap d between the stators 100 adjacent to each other. Even if such a gap d exists, the bottom first protrusion 120 of the upper stator 100 among the stators 100 adjacent to each other and the lower side The spacing between the uppermost second protruding parts 130 of the stator 100 remains the same as P, and the lowermost second protruding part 130 of the upper stator 100 among the stators 100 adjacent to each other and the lower side The spacing between the second protruding poles 130 at the top of the stator 100 is maintained at 2P.

In this way, even between the stator 100 adjacent to each other, the gap between the plurality of stator 100 in order to maintain a constant spacing (P, 2P) between the first protrusion 120 and the second protrusion 130 (d) can be adjusted.

The gap d between the stators 100 is predetermined in a plurality of stator 100 manufacturing steps, and by setting and installing the gap d according to a predetermined gap d dimension during the stator 100 installation operation, Although it is possible to perform a normal installation operation, at this time, an error or the like may occur, so that the spacing (P, 2P) between the first protruding part 120 and the second protruding part 130 is controlled by adjusting the gap d. ) Can be kept constant.

On the other hand, the gap (d) between the stator 100, which is predetermined in the manufacturing step, is such that the first protrusion 120 and the second protrusion 130 are not removed and some of them exist at a predetermined placement interval P. It may be determined to be smaller than P, which is an arrangement interval between the protrusion 120 and the second protrusion 130. That is, the gap d between the stators 100 may be determined in the range of (0 <d <P).

The mover module 50 is disposed opposite to each other on the stator module 40, and the intermediate slot 203 is formed in the middle region and the stator module 40 is provided in both regions around the middle slot 203. Two

armature cores

201 and 202 having first and

second mover teeth

204 and 205 protruding toward each other, and first and

second mover teeth

204 and 205 of the two

armature iron cores

201 and 202, respectively, are mounted to face each other. Magnet armature (M) including at least one permanent magnet (210) disposed to have the same spacing (P, 2P) as the first and second protrusions (120,130) and the armature iron core through the intermediate slot (203) It may be configured to include an armature winding (230,240) wound on (201,202).

The two

armature iron cores

201 and 202 face each other in a form in which the first armature iron core 201 is disposed on one side of the stator module 40 and the second armature iron core 202 is disposed on the other side of the stator module 40. Can be arranged.

2 and 4, the magnet modules M are formed to face each other on the first and

second mover teeth

204 and 205 respectively formed on the two

armature iron cores

201 and 202, respectively. Silver, the permanent magnet 210 having the same polarity (N-pole or S-pole) and the permanent magnet 210 and the protruding poles 220 disposed in the adjacent regions are the first and second protruding

portions

120 and 130 It may be configured to be arranged in a row alternately with each other at the same arrangement interval as the gap pitch P, which is an interval.

That is, the permanent magnets 210 having the same polarity (N-pole) may be arranged in a line to be spaced apart from each other, and may be configured such that the protruding pole 220 as a simple magnetic material is formed in the region therebetween, wherein the protruding pole 220 is The polarity (N pole) and the opposite polarity (S pole) of the permanent magnet 210 are displayed.

Alternatively, the magnet module M may be configured such that permanent magnets 210: 211, 212 having different polarities (N poles, S poles) are alternately arranged at the same arrangement interval as the protruding pitch P. (See Figure 8).

On the other hand, among the plurality of permanent magnets 210 mounted on the first mover tooth 204, the permanent magnet 210 adjacent to the second mover tooth 205 and the plurality of permanent magnets mounted on the second mover tooth 205 The arrangement interval between the permanent magnets 210 adjacent to the first mover teeth 204 of 210 is formed to be n times (here, n is a natural number) of the protruding pitch P (see FIG. 14). For example, as shown in FIG. 4, the permanent magnet 210 located at the bottom of the permanent magnets 210 of the first mover teeth 204 and the uppermost of the permanent magnets 210 of the second mover teeth 205 The spacing between the permanent magnets 210 located may be formed of 3P, which is three times the protruding pitch P.

More specifically, as shown in FIGS. 2 and 4, a permanent magnet 210 adjacent to the second mover tooth 205 among the plurality of permanent magnets 210 mounted on the first mover tooth 204, and 2 If the polarities of the permanent magnets 210 adjacent to the first movable teeth 204 among the plurality of permanent magnets 210 mounted on the movable teeth 205 are the same, the spacing between the two permanent magnets 210 is sudden It may be formed in an odd multiple of the pitch P.

Through this, the permanent magnet 210 mounted on the first mover tooth 204 and the permanent magnet 210 mounted on the second mover tooth 205 include the first protrusion 120 and the second stone of the stator 100. The poles 130 have different relative positions.

That is, based on the state shown in FIG. 4, the permanent magnet 210 located in the first mover tooth 204 of the

armature iron cores

201 and 202 is positioned on the same straight line as the second protruding part 130, and the armature The permanent magnets 210 located on the second mover teeth 205 of the

iron cores

201 and 202 are positioned on the same straight line as the first protrusion 120.

According to this configuration, the flow of magnetic flux by permanent magnets mounted on the first and

second mover teeth

204 and 205 of the two

armature iron cores

201 and 202 is shown as shown in FIG. 5. That is, since the permanent magnet 210 mounted on the first mover teeth 204 of the second armature iron core 202 is an N-pole, it is formed in a form in which magnetic flux flows out from the permanent magnet 210. The first stone flowing into the second protruding portion 130 of the stator 100 adjacent to the permanent magnet 210, branching from the central field iron core 110, and spaced apart from the upper and lower portions of the second protruding portion 130 It flows to the pole portion 120, and represents the flow flowing into the upper and lower sides of the permanent magnet 210 mounted on the first mover tooth 204 of the first armature core 201, that is, the protruding electrode 220 portion. At this time, since the permanent magnet 210 of the first armature iron core 201 also exhibits an N-pole, the magnetic flux flow does not flow into the permanent magnet 210 of the first armature iron core 201, and toward the upper and lower protruding poles 220 side. Inflow. At this time, since the protruding pole 220 is relatively closer to the first protruding portion 120, the magnetic flux flows from the first protruding portion 120 toward the protruding pole 220, in this case, the protruding pole 220 is a permanent magnet It acts as the S pole, which is a different polarity from the 210. In addition, since the flow of magnetic flux from the permanent magnet 210 of the second armature iron core 202 is the same polarity (N pole) of the permanent magnet 210 of the first armature core 201, forces that repel each other generate magnetic flux. The branching process of the flow is made more smoothly, and accordingly, the flux flow of the first armature 201 to the protruding pole 220 is made more smoothly.

On the other hand, the

armature windings

230 and 240 are wound in opposite directions from the first mover tooth 204 and the second mover tooth 205. Intermediate slots 203 are formed in the center of the mutually opposing surfaces of the two

armature iron cores

201 and 202, and the first mover teeth 204 and the second mover teeth 205 are formed on both sides around the middle slot 203. The

armature windings

230 and 240 may be wound in opposite directions to each other in a form surrounding the first mover tooth 204 and the second mover tooth 205 through the intermediate slot 203. Each armature winding (230,240) may be configured to be separately connected in series after being formed in an independently wound form.

Looking at the overall magnetic flux flow according to the structure described above, first, as shown in Figure 6, the magnetic flux flow from the plurality of permanent magnets 210 mounted on the second mover teeth 205 of the second armature core 202 It is discharged and flows into the second protruding part 130 of the stator 100, and each magnetic flux flow is branched from the central field iron core part 110 of the stator 100 and then first through the first protruding part 120. It is introduced into the armature iron core 201. At this time, the permanent magnet 210 mounted on the second mover tooth 205 of the first armature iron core 201 flows into the region of the protruding electrode 220. Since the branching and flow of the magnetic flux is based on the principle described with reference to FIG. 5, detailed description is omitted here.

In addition, magnetic flux flow is also discharged from the plurality of permanent magnets 210 mounted on the first mover teeth 204 of the first armature core 201 to flow into the first protrusion 120 of the stator 100, Each magnetic flux flow is branched from the central field iron core portion 110 of the stator 100 and then flows into the second armature iron core 202 through the second protruding portion 130. At this time, it flows into the region of the protrusion 220 between the permanent magnets 210 mounted on the first mover teeth 204 of the second armature core 202.

The magnetic flux flow emitted from the permanent magnet 210 of the second mover tooth 205 of the second armature core 202 flows into the protrusion 220 of the second mover tooth 205 of the first armature core 201. Thereafter, the first armature 201 flows from the first armature 201 to the permanent magnet 210 side of the first mover tooth 204, and thereafter, the permanent magnet 210 of the first mover tooth 204 of the first armature core 201 ) And is introduced into the region of the protruding electrode 220 of the first mover tooth 204 of the second armature core 202, and the permanent magnet 210 of the second mover tooth 205 as a whole in the second armature core 202. ) Shows the circulating flow that is released again after flowing to the side.

The flow of magnetic flux is reversed in the first mover value 204 and the second mover value 205 of the

armature iron cores

201 and 202 according to the flow of the magnetic flux, and correspondingly, the winding direction of the

armature windings

230 and 240 is the first mover value. Since 204 and the second mover value 205 are opposite, the mover module 50 generates the same propulsion force by electromagnetic force.

In addition, the flow of magnetic flux discharged from the permanent magnet 210 of one armature iron core 201,202 is branched from the stator 100 and flows into the other armature iron core 201,202 through the protruding pole portions 120,130. And, since the two

armature iron cores

201 and 202 show a large circulating flow sequentially passing through the first and second

movable teeth

204 and 205 sequentially, the stator 100 is separated through the gap d Even if it is, the magnetic flux flow through the gap d of the stator 100 is prevented, and even if a magnetic flux flow through the gap d occurs, it is very negligible, which is a negligible level. Therefore, even if the stator module 40 according to an embodiment of the present invention separates and installs a plurality of stators 100 through the gap d, the traveling performance of the linear motor is stably maintained because there is no influence on magnetic flux flow. .

Meanwhile, FIG. 7 shows a magnetic flux flow in a state in which the mover module 50 moves with the elevator car 10 by a P interval in the right direction based on the state shown in FIG. 6. 6, the magnetic flux flow appears in the same principle as in FIG. 6, but the overall direction of the magnetic flux flow is formed in the clockwise direction in FIG. 6, while in FIG. In this process, since the direction of the current flowing through the

armature windings

230 and 240 is changed, the direction of propulsion by electromagnetic force is always maintained the same regardless of the moving state of the mover module 50.

Hereinafter, a detailed structure of the mover module 50 and the stator module 40 according to an embodiment of the present invention will be described in more detail.

8 to 10 are views exemplarily showing various forms of the mover module according to an embodiment of the present invention.

The mover module 50 according to an embodiment of the present invention is mounted on the

armature iron cores

201 and 202 having the first and

second mover teeth

204 and 205 and the first and

second mover teeth

204 and 205 as described above. It comprises a magnet module (M) including at least one permanent magnet 210 and the armature winding (230).

At this time, the magnet module M may be configured in a form in which permanent magnets 210: 211, 212 having different polarities (N-pole, S-pole) are alternately arranged as shown in FIG. 8 (a). . In addition, as shown in (b) and (c) of FIG. 8, a permanent magnet 210 having the same polarity (N-pole) with each other and a protruding electrode 220 disposed in a region adjacent to the permanent magnet 210 are provided. It may be configured in a form arranged alternately with each other. In this case, the arrangement structure of the permanent magnet 210 and the protruding electrode 220 may be set differently as shown in (b) and (c) of FIG. 8 in the first and second mover values 204 and 205.

On the other hand, the permanent magnet 210 and the protruding poles 220 are arranged to have the same spacing as the protruding pole pitch P. At this time, the widths of the permanent magnets 210 and the protruding poles 220 are also as shown in FIG. 8. It is formed in the same manner as the protruding pole pitch P, and the plurality of permanent magnets 210 and the protruding poles 220 may be disposed in contact with each other. In addition, as illustrated in FIG. 9, the widths of the permanent magnets 210 and the protruding poles 220 are smaller than the protruding pitch P, so that the plurality of permanent magnets 210 and the protruding poles 220 do not contact each other. It can also be arranged spaced apart.

An intermediate slot 203 is formed in an intermediate region of the

armature iron cores

201 and 202, and first and

second mover teeth

204 and 205 are formed on both sides around the intermediate slot 203, where the intermediate slot 203 is formed. 8 and 9 may be formed in one side open form (open type), as shown in Figure 10 may be formed in a form that does not open to one side (closed type). .

11 is a diagram for explaining a magnetic flux flow method for the basic structure of a linear motor according to an embodiment of the present invention, and FIG. 12 is a magnetic flux flow that may occur in the basic structure of a linear motor according to an embodiment of the present invention 13 is a view for explaining the basic structure of a linear motor that solves the problem of magnetic flux flow shown in FIG. 12.

In order to generate magnetic flux flow in the linear motor according to an embodiment of the present invention, as shown in FIG. 11, at least one permanent magnet 210 having different polarities is respectively provided to the first and second moving

teeth

204 and 205, respectively. The structure in which two are mounted becomes the basic structure. In this case, the magnetic flux flow represents the flow circulating through the permanent magnet 210 and the stator module 40 of the first and second mover teeth 204,205 as shown in the direction of the arrow in FIG. Since this magnetic flux flow is the same principle as described in FIGS. 1 to 7, detailed descriptions are omitted here.

At this time, if the gap (d) is present in the stator module 40 according to an embodiment of the present invention, as shown in (a) and (b) of FIG. 12, wherever the gap (d) is formed A problem arises in that the magnetic flux flows through the gap (d). Since the magnetic flux flow rapidly decreases in the process of passing through the gap (d), when such a magnetic flux flow occurs, the thrust force of the linear motor cannot be stably generated. Therefore, when the stator module 40 is installed in a form in which a gap d exists using a plurality of stators 100, the magnetic flux flow must be configured to be smoothly formed without passing through the gap d.

In one embodiment of the present invention, as shown in FIG. 13, the number of permanent magnets 210 having different polarities (N-pole, S-pole) respectively mounted on the first and second

movable teeth

204 and 205 is at least 3 By setting the opening structure and setting the arrangement structure to be the same spacing as the protruding pitch P as described above, a stable magnetic flux flow in which the magnetic flux flow does not pass through the gap d even if the gap d exists in the stator module 40 It can be formed. At this time, a more detailed arrangement rule may be applied to the arrangement structure of the permanent magnet 210, and a description thereof will be described later.

11 to 13, the first and

second mover teeth

204 and 205 are shown with respect to a structure in which permanent magnets 210: 211 and 212 of different polarities (N-pole and S-pole) are arranged in a line. As shown in b), even in a structure in which the permanent magnets 210 and the protruding poles 220 of the same polarity (N-pole) are arranged in a line, the protruding poles 220 substantially function as the S-poles, and in this case, the same principle As a result, a stable magnetic flux flow is formed.

Hereinafter, a description will be given mainly of a structure in which permanent magnets 210: 211, 212 having different polarities (N-pole, S-pole) are arranged in a line with respect to the magnet module M, and permanent magnets of the same polarity (N-pole) ( 210) and the structure in which the protruding poles 220 are arranged in a row is the same as when the protruding electrode 220 is replaced with an S-pole permanent magnet, a description thereof will be omitted.

14 is a view for explaining the permanent magnet arrangement structure of the mover module according to an embodiment of the present invention, FIGS. 15 and 16 is a magnetic flux flow generated in the arrangement structure of the permanent magnet according to an embodiment of the present invention It is a diagram illustrated illustratively.

Armature iron cores

201 and 202 are formed with intermediate slots 203 in the intermediate region as described above, and the first and second mover teeth protruding toward the stator module 40 in both regions around the intermediate slot 203 ( 204 and 205 are formed, and the magnet module M is mounted on the first and second

movable teeth

204 and 205.

The first and

second mover teeth

204 and 205 are formed in the same shape as the protruding height and width projecting toward the stator module 40, and thus, the permanent magnet 210 mounted on the first and second mover teeth 204 and 205 ) Are the same. Of course, even when the magnet module M is formed of the permanent magnet 210 and the protruding pole 220, similarly, the total number of the permanent magnet 210 and the protruding pole 220 is mutually different from the first and second mover values 204 and 205. same.

Arrangement of the first and

second mover teeth

204 and 205 is the distance between the centerline of the first mover tooth 204 and the centerline of the second mover tooth 205 according to the shape of the first and

second mover teeth

204 and 205. It can be defined as an interval tooth pitch (Pt), the tooth pitch (Pt) is formed differently depending on whether the polarity arrangement state of the permanent magnet 210 in the first and second mover teeth (204,205) are the same as each other do.

That is, as illustrated in FIG. 14A, when the first and

second mover teeth

204 and 205 have the same polarity arrangement of the permanent magnets 210, the tooth pitch Pt is equal to that of the protruding pitch P. It is formed of (2n-1) times (where n is a natural number of 2 or more), and as shown in FIG. 14 (b), the polarity of the permanent magnet 210 in the first and second moving

teeth

204 and 205 When is different from each other, the tooth pitch Pt is formed by (2n) times (where n is a natural number of 2 or more) of the protruding pitch P.

In other words, when the polarity arrangement states of the permanent magnets 210 in the first and

second mover teeth

204 and 205 are the same, the tooth pitch Pt is formed by an odd multiple of three or more of the protruding pitch P, and the first and second When the polarity arrangement states of the permanent magnets 210 in the

second mover teeth

204 and 205 are different from each other, the tooth pitch Pt is formed by an even multiple of 4 or more of the protruding pitch P.

Even though the gap d exists in the stator module 40 through this structure, the magnetic flux flow through the permanent magnet 210 is formed so as not to pass through the gap d, thereby forming a stable magnetic flux flow.

On the other hand, in this case, as shown in Figure 14 (a) of the permanent magnet 210 mounted on the first mover teeth 204, the second mover teeth 205 adjacent to the permanent magnet 210, the second If the permanent magnets 210 adjacent to the first movable teeth 204 among the permanent magnets 210 mounted on the movable teeth 205 are of the same polarity, the spacing between the two permanent magnets 210 is the protruding pitch P ) (2m-1) times (where m is a natural number), as shown in FIG. 14 (b), the second mover value of the permanent magnet 210 mounted on the first mover tooth 204 If the permanent magnets 210 adjacent to the 205 and the permanent magnets 210 adjacent to the first moving teeth 204 of the permanent magnets 210 mounted on the second moving teeth 205 have different polarities, the corresponding two The spacing between the permanent magnets 210 is formed by (2m) times (where m is a natural number) of the protruding pitch P.

According to this structure, the permanent magnets 210 of the first mover teeth 204 and the permanent magnets 210 of the second mover teeth 205 are relative to the first and

second protrusions

120 and 130 of the stator module 40. The relative positions of the elevator cars 10 in the traveling direction are arranged differently. That is, while the N-pole permanent magnet 211 of the first mover tooth 204 is located on the same horizontal line as the second protrusion 130, the N-pole permanent magnet 211 of the second mover tooth 205 is made of 1 is located on the same horizontal line as the protrusion 120. Accordingly, as described in FIGS. 6 and 7, a stable magnetic flux flow is generated as a whole.

On the other hand, although not shown, when the magnet module (M) is formed in a form in which the permanent magnet 210 and the protruding pole 220 are alternately arranged in a row, instead of the S-pole permanent magnet 210 of FIG. 14, the protruding pole 220 ), The same arrangement is applied.

15 and 16 exemplarily show the number of teeth pitches Pt and the number of permanent magnets 210 according to the arrangement structure described with reference to FIG. 14, and the mover module 50 shown in FIG. 15 includes first and In the case where the polarity arrangement state of the permanent magnet 210 is the same in the

second mover teeth

204 and 205, and the tooth pitch Pt is 5P, which is 5 times the protrusion pitch P, the magnetic flux flow passes through the gap d. It does not show a stable flow. At this time, the spacing between the permanent magnets 210 adjacent to each other in the first and second moving

teeth

204 and 205 is 2P, which is an even multiple of the protruding pitch P. The mover module 50 shown in FIG. 16 is a case in which the polarity arrangement state of the permanent magnet 210 in the first and

second mover teeth

204 and 205 is different, and the tooth pitch Pt is four times the protruding pitch P In the state of 4P, the magnetic flux flow does not pass through the gap d and shows a stable flow. At this time, the spacing between the permanent magnets 210 adjacent to each other in the first and second

movable teeth

204 and 205 is P, which is an odd multiple of the protruding pitch P.

17 is a view for explaining the relationship between the gap size of the stator module and the number of permanent magnets according to an embodiment of the present invention.

The gap d between the plurality of stators 100 of the stator module 40 is preferably set to be smaller than the protruding pitch P, as described with reference to FIGS. 1 to 7. It might be.

The first and

second protrusions

120 and 130 are spaced apart at a pitch P interval, and in this case, the protrusion widths bw of the first and

second protrusions

120 and 130 are all the same. As described with reference to FIG. 13, the number of permanent magnets 210 mounted on the first and

second mover teeth

204 and 205 is respectively set to at least three, and the gap d between the stator 100 is first and first. 2 When the width of the

protrusions

120 and 130 is less than bw, as shown in FIG. 13, even when the number of permanent magnets 210 is three, magnetic flux flow is stably performed. That is, when the gap d between the stator 100 is installed to be less than the width bw of the first and

second protrusions

120 and 130, the number of permanent magnets 210 may be set to three or more.

In contrast, when the gap d between the stators is installed at a width bw or more of the first and

second protrusions

120 and 130, the minimum number of permanent magnets 210 is set according to the following rules.

In the range in which the gap d between the stators is nP + bw ≤ d <(n + 1) P + bw, the number of permanent magnets 210 is set to (n + 4) or more. Here, n is an integer of 0 or more, P is the pitch of the protruding poles, bw is the width of the first and second protruding portions, and d is the gap.

For example, as shown in FIG. 17, the gap d between the stators is greater than the width bw of the first protruding portion 120 or the second protruding portion 130, and the width bw and the protruding pitch P ), The number of permanent magnets 210 is set to at least four, and in this case, the magnetic flux flow is stably formed in a form that does not pass through the gap d.

In FIG. 17, permanent magnets 210 having different polarities (N-pole and S-pole) are alternately arranged in a row in the first and second

movable teeth

204 and 205, but the same polarities ( The same applies to the case where the permanent magnet 210 having the N pole) and the protruding pole 220 are alternately arranged in a row. That is, in a range in which the gap d between the stators is nP + bw ≤ d <(n + 1) P + bw, the total number of permanent magnets 210 and protrusions 220 is set to (n + 4) or more, , If the gap (d) between the stator 100 is installed less than the width (bw) of the first and

second protrusions

120 and 130, the total number of permanent magnets 210 and protrusions 220 is set to 3 or more do.

As described above, by adjusting the minimum number of permanent magnets 210 according to the size of the gap d between the stators, as shown in FIG. 17, magnetic flux flow can be stably formed in a manner that does not pass through the gap d. .

18 is a view for explaining the winding method for the armature winding of the mover module according to an embodiment of the present invention, Figure 19 is a view schematically showing another form of a linear motor according to an embodiment of the present invention to be.

18, the winding method for the armature winding 230 of the mover module 50 is exemplarily illustrated. Unlike that shown in FIGS. 2 and 4, the armature winding 230 has an armature iron core through an intermediate slot 203. It may be wound in the form of wrapping (201,202) in the transverse direction.

As long as the armature winding 230 is formed in a form in which magnetic flux flows through the inner space of the winding form, the winding method may be variously changed.

In addition, as shown in FIG. 19, the linear motor according to an embodiment of the present invention includes two

armature iron cores

201 and 202, a magnet module M, and a mover module 50: 50a including an armature winding 230 , 50b, 50c) may be provided to be arranged in a line along the traveling direction of the elevator car.

Each of the

mover modules

50a, 50b, and 50c can be used as a three-phase device having three voltages shifted by 120 ° from each other, and in addition, two or more mover modules 50 are provided and mutual electric angles are provided. It can be used as an electric motor that consumes polyphase alternating current by displaced or a polyphase device that generates multiphase electromotive force. Of course, one mover module 50 may operate by single-phase AC voltage and current or generate single-phase AC electromotive force.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims

A linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to the elevator car to be positioned opposite to each other on both sides of the stator module,

The stator module is installed in a form arranged in a row spaced apart so that a plurality of stators have a gap along the driving direction of the elevator car,

The mover module and the stator module is a linear motor for elevators, characterized in that the flow of the magnetic flux formed through the mover module and the stator module is formed so as not to pass through the gap of the stator.
According to claim 1,

Each of the plurality of stators

And a central field iron core formed along the driving direction of the elevator car, and first and second protruding portions respectively protruding on both sides of the central field iron core,

The first and second protruding poles are linear motors for elevators, characterized in that they are arranged to be offset from each other on both sides of the central field iron core.
According to claim 2,

The plurality of first protrusions are spaced apart to have the same spacing.

The plurality of second protrusions are linear motors for elevators, characterized in that they are arranged to be spaced apart at the same spacing so as to be positioned between the spacings of the first protrusions.
The method of claim 3,

A linear motor for elevators, characterized in that the plurality of stators are arranged to maintain the same spacing between two stators adjacent to each other by adjusting the gap therebetween.
The method of claim 3,

The mover module

Two armatures arranged to be opposite to each other on the stator module, and intermediate slots are formed in the middle region and first and second mover teeth protruding toward the stator module are formed in both regions around the middle slot. Iron core;

A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And

Armature winding wound around the armature core through the intermediate slot

Linear motor for elevators, characterized in that it comprises a.
The method of claim 5,

The magnet module

Linear motors for elevators, characterized in that the permanent magnets having different polarities are formed in an alternating arrangement at the same arrangement interval as the protrusion pitch P, which is the placement interval of the first and second protrusions.
The method of claim 5,

The magnet module

In the form of permanent magnets having the same polarity with each other, and the protruding poles disposed in the regions adjacent to the permanent magnets are alternately arranged in line with each other at the same spacing as the protruding pitch P, which is the spacing between the first and second protruding portions. Linear motor for elevators, characterized in that formed.
The method according to claim 6 or 7,

The spacing between the permanent magnets mounted on the first mover teeth adjacent to the second mover teeth and the permanent magnets mounted on the second mover teeth adjacent to the first mover teeth is the protruding pitch. Linear motor for elevators, characterized in that formed in m times (P, m is a natural number) of (P).
The method of claim 7,

The spacing between the protrusions adjacent to the second mover tooth among the protrusions mounted on the first mover tooth and the protrusions adjacent to the first mover tooth among the protrusions mounted on the second mover tooth is equal to the protrusion pitch P Linear motor for elevators, characterized in that formed by m times (where m is a natural number).
The method of claim 5,

A linear motor for an elevator, characterized in that the distance from the center of the first mover tooth of the armature iron core to the center of the second mover tooth is formed at n times (where n is a natural number) of the protruding pitch P.
A linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to the elevator car to be positioned opposite to each other on both sides of the stator module,

The stator module is installed in a form arranged in a row spaced apart so that a plurality of stators have a gap,

Each of the plurality of stators

A center field iron core portion disposed along the driving direction of the elevator car, and first and second protruding portions protruding from each other at equal intervals on both sides of the center field iron core portion,

The mover module

Two armatures arranged to be opposite to each other on the stator module, and intermediate slots are formed in the middle region and first and second mover teeth protruding toward the stator module are formed in both regions around the middle slot. Iron core;

A magnet module mounted opposite to each other on first and second mover teeth of the two armature iron cores; And

And an armature winding wound around the armature core through the intermediate slot,

The magnet module is formed in a form in which permanent magnets having different polarities are alternately arranged in a row at the same arrangement interval as the protrusion pitch P, which is an arrangement interval of the first and second protrusions,

When the polarity arrangement states of the permanent magnets in the first and second mover teeth are equal to each other, the tooth pitch Pt, which is the spacing between the first and second mover teeth, is (2n-1) of the protruding pitch P Linear motor for elevators, characterized in that formed by a ship (where n is a natural number of 2 or more).
The method of claim 11,

When the polarity of the permanent magnets in the first and second mover teeth are different from each other, the tooth pitch Pt is formed by (2n) times (where n is a natural number of 2 or more) of the protruding pitch P. It characterized in that the linear motor for elevators.
The method of claim 12,

If the permanent magnets mounted on the first mover teeth adjacent to the second mover teeth and the permanent magnets mounted on the second mover teeth adjacent to the first mover teeth have the same polarity, the corresponding permanent magnets The arrangement interval between the linear motors for elevators, characterized in that formed by (2m-1) times (where m is a natural number) of the protruding pitch P.
The method of claim 13,

If the permanent magnets mounted on the first mover teeth are adjacent to the second mover teeth and the permanent magnets mounted on the second mover teeth are adjacent to the first mover teeth, the permanent magnets are different polarities. The interval between the arrangement is a linear motor for elevators, characterized in that formed by (2m) times (where m is a natural number) of the protruding pitch P.
A linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to the elevator car to be positioned opposite to each other on both sides of the stator module,

The stator module is installed in a form arranged in a row spaced apart so that a plurality of stators have a gap,

Each of the plurality of stators

A center field iron core portion disposed along the driving direction of the elevator car, and first and second protruding portions protruding from each other at equal intervals on both sides of the center field iron core portion,

The mover module

Two armatures arranged to be opposite to each other on the stator module, and intermediate slots are formed in the middle region and first and second mover teeth protruding toward the stator module are formed in both regions around the middle slot. Iron core;

A magnet module mounted opposite to each other on first and second mover teeth of the two armature iron cores; And

And an armature winding wound around the armature core through the intermediate slot,

In the magnet module, the permanent magnets having the same polarity and the protruding poles disposed in the regions adjacent to the permanent magnets alternate with each other at the same spacing as the protruding pitch P, which is the spacing between the first and second protruding portions. It is formed in the form that is arranged,

In the case where the alternating arrangement of the permanent magnet and the protruding poles in the first and second mover teeth is equal to each other, the tooth pitch Pt, which is the spacing between the first and second moving teeth, is (2n-) of the protruding pitch P 1) Linear motor for elevators, characterized in that it is formed by a ship (where n is a natural number of 2 or more).
The method of claim 15,

When the alternate arrangement of the permanent magnet and the protruding pole in the first and second moving teeth is different from each other, the tooth pitch Pt is (2n) times the protruding pitch P (where n is a natural number of 2 or more) Linear motor for elevators, characterized in that formed of.
The method of claim 16,

Of the permanent magnets and protrusions mounted on the first mover teeth, the object closest to the second mover tooth and the objects closest to the first mover teeth mounted on the second mover teeth are permanent magnets. Or, if the same as the protruding poles, the spacing between the permanent magnets or protruding poles is a linear motor for elevators, characterized in that formed by (2m-1) times (where m is a natural number) of the protruding pitch P.
The method of claim 17,

Among the permanent magnets and protrusions mounted on the first mover tooth, the object closest to the second mover tooth and the permanent magnets and protrusions mounted on the second mover tooth are closest to the first mover tooth. If the permanent magnet and the rest are different from each other with a protruding pole, the placement interval between the permanent magnet and the protruding pole is formed by (2m) times (here, m is a natural number) of the protruding pitch (P). .
The method according to any one of claims 11 to 18,

The first and second mover teeth are linear motors for elevators, characterized in that the widths projecting toward the stator modules are formed to be the same.
A linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to the elevator car to be positioned opposite to each other on both sides of the stator module,

The stator module is installed in a form arranged in a row spaced apart so that a plurality of stators have a gap,

Each of the plurality of stators

A center field iron core portion disposed along the driving direction of the elevator car, and first and second protruding portions protruding from each other at equal intervals on both sides of the center field iron core portion,

The mover module

Two armatures arranged to be opposite to each other on the stator module, and intermediate slots are formed in the middle region and first and second mover teeth protruding toward the stator module are formed in both regions around the middle slot. Iron core;

A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And

And an armature winding wound around the armature core through the intermediate slot,

The magnet module is formed in a form in which permanent magnets having different polarities are alternately arranged in a row at the same arrangement interval as the protrusion pitch P, which is an arrangement interval of the first and second protrusions,

When a gap d between a plurality of the stators is installed at a width bw or more of the first and second protrusions, in the range of nP + bw ≤ d <(n + 1) P + bw, the permanent magnet module The number of magnets is set to (n + 4) or more, where n is an integer greater than or equal to 0.
The method of claim 20,

When the gap d between the plurality of stators is less than the width bw of the first and second protrusions, the number of permanent magnets of the magnet module is set to 3 or more. .
A linear motor for an elevator that includes a stator module installed along a driving direction of an elevator car and a mover module coupled to the elevator car to be positioned opposite to each other on both sides of the stator module,

The stator module is installed in a form arranged in a row spaced apart so that a plurality of stators have a gap,

Each of the plurality of stators

A center field iron core portion disposed along the driving direction of the elevator car, and first and second protruding portions protruding from each other at equal intervals on both sides of the center field iron core portion,

The mover module

Two armatures arranged to be opposite to each other on the stator module, and intermediate slots are formed in the middle region and first and second mover teeth protruding toward the stator module are formed in both regions around the middle slot. Iron core;

A magnet module comprising at least one permanent magnet mounted opposite to each other on the first and second mover teeth of the two armature iron cores and disposed to have the same spacing as the first and second protrusions; And

And an armature winding wound around the armature core through the intermediate slot,

The magnet module

In the form of permanent magnets having the same polarity with each other, and the protruding poles disposed in the regions adjacent to the permanent magnets are alternately arranged in line with each other at the same spacing as the protruding pitch P, which is the spacing between the first and second protruding portions. Is formed,

When a gap d between the plurality of stators is installed at a width bw or more of the first and second protrusions, in the range of nP + bw ≤ d <(n + 1) P + bw, the permanent magnet module The total number of magnets and protruding poles is set to (n + 4) or more, where n is an integer greater than or equal to 0.
The method of claim 22,

When the gap (d) between the plurality of stators is installed less than the width (bw) of the first and second protrusions, the total number of permanent magnets and protrusions of the magnet module is set to 3 or more. For linear motors.
The method according to any one of claims 20 to 23,

A plurality of the stators are arranged between the first and second protruding portions adjacent to each other among the first and second protruding portions formed in two adjacent stators by adjusting the gap d therebetween, so that the protruding pitch P Linear motor for elevators, characterized in that installed to be maintained at n times (here, n is a natural number).
The method of claim 24,

The spacing between the permanent magnets mounted on the first mover teeth adjacent to the second mover teeth and the permanent magnets mounted on the second mover teeth adjacent to the first mover teeth is the protruding pitch. Linear motor for elevators, characterized in that it is formed of n times (where n is a natural number) of (P).
The method of claim 22,

The spacing between the protrusions adjacent to the second mover tooth among the protrusions mounted on the first mover tooth and the protrusions adjacent to the first mover tooth among the protrusions mounted on the second mover tooth is equal to the protrusion pitch P Linear motor for elevators, characterized in that formed by n times (where n is a natural number).