Linear motor device and electronic apparatus

Abstract

The utility model discloses a linear motor device and electronic equipment, and the linear motor device comprises a stator track which extends along an extension direction; the plurality of first magnetic teeth are arranged on the stator track at intervals along the extension direction; the sliding rail extends in the extending direction; the mover is in sliding connection with the sliding rail, and the mover is used for sliding relative to the sliding rail in the extending direction; the plurality of second magnetic teeth are arranged on the rotor at intervals along the extension direction; electric wires are wound on the second magnetic teeth to form electromagnets; a first magnet and a second magnet are sequentially arranged on the side, facing the stator track, of the second magnetic tooth in the extending direction. One side, facing the stator track, of the first magnet is an N pole, and one side, facing the stator track, of the second magnet is an S pole. Based on the above mode, the cost of the linear motor device can be reduced.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to linear motor devices and electronic equipment. Background Art

[0002] In the prior art, a linear motor device is usually provided with a stator track and a mover, and an electromagnet capable of switching magnetic poles is provided on the mover. N-pole magnets and S-pole magnets are alternately provided on the stator track along its extension direction, such as N-pole or S-pole magnets. By continuously switching the magnetic poles of each electromagnet on the mover, the electromagnets on the mover respectively interact with the N-pole magnet and the S-pole magnet on the stator track to form a magnetic field, so that the mover can slide relative to the stator track under the action of the magnetic field.

[0003] The drawback of the prior art is that the stator track in the linear motor device is long, so more magnets (such as magnetic steel) need to be consumed on the stator track, which makes the cost of the linear motor device higher. Utility Model Content

[0004] The main technical problem solved by this application is how to reduce the cost of the linear motor device.

[0005] In order to solve the above technical problems, the first technical solution adopted in this application is: a linear motor device, comprising: a stator track, which extends along the extension direction; a plurality of first magnetic teeth, which are arranged on the stator track at intervals along the extension direction; a sliding track, which extends along the extension direction; a mover, which is slidably connected to the sliding track, and the mover is used to slide relative to the sliding track in the extension direction; a plurality of second magnetic teeth, which are arranged on the mover at intervals along the extension direction; electric wires are wound around the second magnetic teeth to form electromagnets; on the second magnetic teeth, a first magnet and a second magnet are arranged in sequence along the extension direction on the side facing the stator track; the side of the first magnet facing the stator track is the N pole, and the side of the second magnet facing the stator track is the S pole.

[0006] Among them, the stator track includes a first track and a second track, the mover includes a first motor and a second motor; the first magnetic tooth includes a first sub-magnetic tooth arranged on the first track and a second sub-magnetic tooth arranged on the second track, and the second magnetic tooth includes a third sub-magnetic tooth arranged on the first motor and a fourth sub-magnetic tooth arranged on the second motor; the first sub-magnetic tooth and the third sub-magnetic tooth are arranged opposite to each other, and the second sub-magnetic tooth and the fourth sub-magnetic tooth are arranged opposite to each other.

[0007] Among them, the first direction is the direction from the first sub-magnetic tooth toward the third sub-magnetic tooth, the second direction is the direction from the second sub-magnetic tooth toward the fourth sub-magnetic tooth, and the third direction is the direction of the driven member toward the sliding track; at least one of the first direction and the second direction is different from the third direction.

[0008] The first direction and the second direction are both different from the third direction.

[0009] The sliding track is located below the mover, the component direction of the first direction on the horizontal plane is opposite to the component direction of the second direction on the horizontal plane, and the angle between the first direction and the third direction is equal to the angle between the second direction and the third direction.

[0010] The first direction is not parallel to the second direction.

[0011] The projection of any third sub-magnetic tooth on the horizontal plane and the projection of any fourth sub-magnetic tooth on the horizontal plane only partially overlap or do not overlap in the fourth direction.

[0012] In which, the linear motor device also includes a shell, and includes a drag chain and / or a magnetic grating module; the stator track, the sliding track, and the mover are located in the shell; the drag chain is located in the shell, one end of the drag chain is connected to the motor in the mover, and the other end of the drag chain is connected to the hole in the shell, and the control line of the motor passes through the inner cavity of the drag chain and is led out from the hole, and the control line of the motor is used to connect to the corresponding controller; the magnetic grating module is located in the shell, and the magnetic grating module includes a magnetic scale and a magnetic grating reader, the magnetic scale is arranged along the extension direction, and the magnetic grating reader is arranged on the mover.

[0013] In which, the linear motor device also includes a shell, and the stator track, sliding track, and mover are located in the shell; the shell includes a top cover and a main shell, the top cover includes a main cover body, a mounting platform, a first accordion-type sealing cover and a second accordion-type sealing cover, the mounting platform is fixedly connected to the mover, one end of the mounting platform in the extension direction is fixedly connected to one end of the first accordion-type sealing cover, the other end of the first accordion-type sealing cover is fixedly connected to the main cover body, the other end of the mounting platform in the extension direction is fixedly connected to one end of the second accordion-type sealing cover, and the other end of the second accordion-type sealing cover is fixedly connected to the main cover body, so that the first accordion-type sealing cover and the second accordion-type sealing cover can be compressed or stretched with the movement of the mover in the extension direction.

[0014] In order to solve the above technical problems, the second technical solution adopted in this application is: an electronic device, including a control device and at least one of the above-mentioned linear motor devices, and the control device is connected to the linear motor device.

[0015] The beneficial effect of the present application is that, different from the prior art, in the technical solution of the present application, the stator track extends along the extension direction, a plurality of first magnetic teeth are arranged on the stator track at intervals along the extension direction, the sliding track extends along the extension direction, the mover is slidably connected to the sliding track, and the mover is used to slide relative to the sliding track in the extension direction, a plurality of second magnetic teeth are arranged on the mover at intervals along the extension direction, wires are wound around the second magnetic teeth to form an electromagnet, and a first magnet and a second magnet are sequentially arranged on the side of the second magnetic tooth facing the stator track along the extension direction, the side of the first magnet facing the stator track is the N pole, and the side of the second magnet facing the stator track is the S pole. Based on the above method, the magnetic poles of the electromagnet can be switched to make the same Among the two magnets on a second magnetic tooth, the state in which the magnetic field strength of the first magnet is greater than the magnetic field strength of the second magnet is switched, or the state in which the magnetic field strength of the first magnet is switched to a state in which the magnetic field strength of the first magnet is less than the magnetic field strength of the second magnet is switched, so that the same second magnetic tooth can, in different states, perform a magnetic field effect, such as magnetic attraction, on the corresponding first magnetic tooth on the stator track based on the different magnets in the first magnet and the second magnet, so that the mover can slide relative to the stator track. That is, the basic function of the linear motor device can be realized by only arranging magnets on the mover, thereby reducing the amount of magnets required to be consumed on the linear motor device and reducing the cost of the linear motor device without affecting the normal operation of the linear motor device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the linear motor device of the present application;

[0018] Figure 2 This is a structural diagram of an embodiment of the stator track and mover of the present application;

[0019] Figure 3 is a structural schematic diagram of another embodiment of the linear motor device of the present application;

[0020] Figure 4 yes Figure 3 A cross-sectional schematic diagram of a linear motor device;

[0021] Figure 5 This is a schematic top view of the structure of an embodiment of the mover and stator track of the present application;

[0022] Figure 6 It is a structural diagram of an embodiment of the electronic device of the present application.

[0023] Figure numerals: 1. stator track; 11. first track; 12. second track; 2. first magnetic tooth; 21. first sub-magnetic tooth; 22. second sub-magnetic tooth; 3. sliding track; 4. mover; 41. first motor; 42. second motor; 5. second magnetic tooth; 51. first magnet; 52. second magnet; 53. third sub-magnetic tooth; 54. fourth sub-magnetic tooth; 6. shell; 61. top cover; 611. main cover; 612. mounting platform; 613. first accordion-type sealing cover; 614. second accordion-type sealing cover; 62. main shell; 7. drag chain; 8. magnetic grating module; 81. magnetic scale; 82. magnetic grating reader. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and not all examples. All other examples obtained by those of ordinary skill in the art without creative work are intended to fall within the scope of protection of this application.

[0025] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "installed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can mean fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or connection through an intermediate medium. Those skilled in the art will be able to understand the specific meanings of the above terms in this application in specific circumstances.

[0027] This application proposes a linear motor device, see Figure 1 and Figure 2 , Figure 1 This is a schematic structural diagram of an embodiment of the linear motor device of the present application. Figure 2 This is a structural diagram of an embodiment of the stator track and mover of the present application, as shown in FIG. Figure 1 and Figure 2As shown, the linear motor device includes a stator rail 1 , a plurality of first magnetic teeth 2 , a sliding rail 3 , a mover 4 and a plurality of second magnetic teeth 5 .

[0028] The stator rail 1 extends along an extension direction Dx. A plurality of first magnetic teeth 2 are arranged on the stator rail 1 at intervals along the extension direction Dx.

[0029] The stator track 1 extends in the extension direction Dx to form a corresponding straight track.

[0030] The first magnetic teeth 2 may be specifically made of a magnetic member, such as iron or other types of magnetic members, which are not limited herein. The first magnetic teeth 2 may be sequentially spaced apart in the extension direction Dx.

[0031] The sliding track 3 extends along the extension direction Dx. The mover 4 is slidably connected to the sliding track 3, and the mover 4 is used to slide relative to the sliding track 3 in the extension direction Dx.

[0032] The sliding track 3 extends in the extension direction Dx to form a corresponding straight track.

[0033] A slider may be provided on the mover 4, which may be used to engage with the sliding rail 3 so that the slider can slide relative to the sliding rail 3 in the extension direction Dx. That is, the mover 4 can achieve relative sliding with the sliding rail 3 based on the engagement between the slider and the sliding rail 3.

[0034] The plurality of second magnetic teeth 5 are arranged on the mover 4 at intervals along the extending direction Dx.

[0035] The second magnetic teeth 5 are wound with electric wires to form electromagnets.

[0036] On the second magnetic tooth 5 , on a side facing the stator rail 1 , a first magnet 51 and a second magnet 52 are sequentially provided along the extension direction Dx.

[0037] The side of the first magnet 51 facing the stator track 1 is the north pole, and the side of the second magnet 52 facing the stator track 1 is the south pole.

[0038] First, after the second magnetic tooth 5 is wound with wires to form an electromagnet, the direction of the current in the wires on the second magnetic tooth 5 can be changed to change the magnetic pole of the electromagnet toward the stator track 1 .

[0039] Since the side of the first magnet 51 facing the stator track 1 is the N pole, and the side of the second magnet 52 facing the stator track 1 is the S pole, when the side of the electromagnet facing the stator track 1 is adjusted to the N pole, the magnetic field strength applied by the first magnet 51 toward the stator track 1 is greater than the magnetic field strength applied by the second magnet 52 toward the stator track 1, and, when the side of the electromagnet facing the stator track 1 is adjusted to the S pole, the magnetic field strength applied by the first magnet 51 toward the stator track 1 is less than the magnetic field strength applied by the second magnet 52 toward the stator track 1, wherein the magnetic attraction between the magnet with a larger magnetic field strength and the corresponding first magnetic tooth 2 is larger, while the magnetic attraction between the magnet with a smaller magnetic field strength and the corresponding first magnetic tooth 2 is smaller.

[0040] Based on the above method, by continuously switching the relationship between the magnetic field strength of the first magnet 51 and the second magnet 52 on each second magnetic tooth 5, the magnetic attraction between the first magnet 51 and the second magnet 52 and the first magnetic tooth 2 closest to them can be changed, thereby controlling the mover 4 to slide relative to the stator track 1 and / or the sliding track 3 in the extension direction Dx, and realizing that the linear motor device can operate normally without laying magnets arranged at intervals on the entire stator track 1, but only arranging magnets on the mover 4. That is, the technical solution of the present application reduces the cost of the linear motor device without affecting the normal operation of the linear motor device compared with the traditional technology.

[0041] In addition, on the same second magnetic tooth 5 , the magnetic field directions of the first magnet 51 , the magnetic field directions of the second magnet 52 , and the magnetic field directions of the electromagnet are all parallel, that is, the directions are the same or opposite.

[0042] A slot may be provided on the second magnetic tooth 5 between the first magnet 51 and the second magnet 52 so that the first magnet 51 and the second magnet 52 are separated by the slot, thereby reducing magnetic leakage and reducing the output fluctuation of the motor of the mover 4 when pushing the mover to move, thereby improving stability.

[0043] Different from the prior art, in the technical solution of the present application, the stator track extends along the extension direction, a plurality of first magnetic teeth are arranged on the stator track at intervals along the extension direction, the sliding track extends along the extension direction, the mover is slidably connected to the sliding track, and the mover is used to slide relative to the sliding track in the extension direction, a plurality of second magnetic teeth are arranged on the mover at intervals along the extension direction, wires are wound around the second magnetic teeth to form an electromagnet, and a first magnet and a second magnet are sequentially arranged on the side of the second magnetic tooth facing the stator track along the extension direction, the side of the first magnet facing the stator track is the N pole, and the side of the second magnet facing the stator track is the S pole. Based on the above method, the magnetic poles of the electromagnet can be switched so that the same second magnet Of the two magnets on the magnetic tooth, the state in which the magnetic field strength of the first magnet is greater than the magnetic field strength of the second magnet is switched, or the state in which the magnetic field strength of the first magnet is switched to be less than the magnetic field strength of the second magnet, so that the same second magnetic tooth can, in different states, perform a magnetic field effect, such as magnetic attraction, on the corresponding first magnetic tooth on the stator track based on the different magnets in the first magnet and the second magnet, so that the mover can slide relative to the stator track. That is, the basic function of the linear motor device can be realized by only arranging magnets on the mover, thereby reducing the amount of magnets required to be consumed on the linear motor device and reducing the cost of the linear motor device without affecting the normal operation of the linear motor device.

[0044] In one embodiment, see Figures 3 to 5 , Figure 3 is a structural diagram of another embodiment of the linear motor device of the present application, Figure 4 yes Figure 3 A cross-sectional diagram of a linear motor device. Figure 5 This is a schematic diagram of the top view of an embodiment of the mover and stator track of the present application. Figures 1 to 5 As shown, the stator track 1 includes a first track 11 and a second track 12 , and the mover 4 includes a first motor 41 and a second motor 42 .

[0045] The first magnetic teeth 2 include first sub-magnetic teeth 21 provided on the first track 11 and second sub-magnetic teeth 22 provided on the second track 12 . The second magnetic teeth 5 include third sub-magnetic teeth 53 provided on the first motor 41 and fourth sub-magnetic teeth 54 provided on the second motor 42 .

[0046] The first sub-magnetic teeth 21 are disposed opposite to the third sub-magnetic teeth 53 , and the second sub-magnetic teeth 22 are disposed opposite to the fourth sub-magnetic teeth 54 .

[0047] Specifically, the mover 4 may include more than two motors, and the second magnetic teeth 5 on each motor are used to be arranged opposite to the first magnetic teeth 2 on the corresponding track to cooperate with the magnetic effect, so as to control the mover 4 to slide relative to the stator track 1 and / or the sliding track 3 in the extension direction Dx.

[0048] Based on the above method, two or more motors can be used to use more than twice the magnetic effect of a single motor to control the relative sliding of the mover 4 with greater output, thereby increasing the maximum output of the linear motor device and thus improving the applicability of the linear motor device.

[0049] Alternatively, as Figure 4 As shown, the first direction D1 is from the first sub-magnetic tooth 21 toward the third sub-magnetic tooth 53 , the second direction D2 is from the second sub-magnetic tooth 22 toward the fourth sub-magnetic tooth 54 , and the third direction D3 is from the driven member 4 toward the sliding track 3 .

[0050] At least one of the first direction D1 and the second direction D2 is different from the third direction D3 .

[0051] Specifically, since at least one of the first direction D1 and the second direction D2 is different from the third direction D3, the magnetic attraction in the direction different from the third direction D3 will not be completely superimposed on the force exerted on the sliding rail 3 by the mover 4 in the third direction D3 due to the influence of gravity. That is, by avoiding the complete superposition of the magnetic attraction and the force exerted on the sliding rail 3 by the mover 4 in the third direction D3 due to the influence of gravity, the friction between the mover 4 and the sliding rail 3 can be reduced, thereby reducing the loss of the sliding rail 3.

[0052] Based on the above method, the service life of the linear motor device can be increased.

[0053] In one example, the first direction D1 and the second direction D2 are different from the third direction D3. At this time, the magnetic attraction in the first direction D1 and the second direction D2 can not be completely superimposed on the force exerted on the sliding rail 3 by the mover 4 in the third direction D3 due to the influence of gravity, thereby further reducing the loss of the sliding rail 3 and further improving the service life of the linear motor device.

[0054] Furthermore, if Figure 4 As shown, the sliding track 3 is located below the mover 4, the component direction of the first direction D1 on the horizontal plane is opposite to the component direction of the second direction D2 on the horizontal plane, and the angle between the first direction D1 and the third direction D3 is equal to the angle between the second direction D2 and the third direction D3.

[0055] Specifically, if Figure 4As shown, by making the component direction of the first direction D1 on the horizontal plane opposite to the component direction of the second direction D2 on the horizontal plane, the magnetic attraction between the first track 11 and the first sub-magnetic tooth 21 and the magnetic attraction between the second track 12 and the second sub-magnetic tooth 22 can be at least partially offset.

[0056] The sliding track 3 is arranged below the mover 4. The mover 4 can be firmly placed on the sliding track 3 under the influence of gravity. Moreover, due to at least partial offset of the above-mentioned magnetic attraction, the loss between the mover 4 and the sliding track 3 can be reduced as much as possible.

[0057] Furthermore, if Figure 4 As shown, the first direction D1 is not parallel to the second direction D2.

[0058] Specifically, since the first direction D1 is not parallel to the second direction D2, that is, the first direction D1 is not completely opposite to the second direction D2, the first motor 41 and the second motor 42 in the linear motor device can be operated as follows: Figure 4 The combination arrangement shown reduces the width of the linear motor device in a direction perpendicular to the third direction D3, making the overall volume of the linear motor device smaller and the integration higher.

[0059] Furthermore, the projection of any third sub-magnetic tooth 53 on the horizontal plane and the projection of any fourth sub-magnetic tooth 54 on the horizontal plane only partially overlap or do not overlap in the fourth direction.

[0060] Specifically, if Figure 5 As shown, in the extension direction Dx, the distance between a third sub-magnetic tooth 53 and a fourth sub-magnetic tooth 54 that are closest to each other is S, S is greater than 0 and less than the spacing distance, wherein the spacing distance is the distance between adjacent third sub-magnetic teeth 53 in the extension direction Dx, or the distance between adjacent fourth sub-magnetic teeth 54 in the extension direction Dx, and the distance between adjacent third sub-magnetic teeth 53 in the extension direction Dx can be equal to the distance between adjacent fourth sub-magnetic teeth 54 in the extension direction Dx.

[0061] Based on the above method, any third sub-magnetic tooth 53 and any fourth sub-magnetic tooth 54 can be staggered in a direction perpendicular to the third direction D3, thereby reducing the output fluctuation of the motor on the mover 4 when the mover 4 is pushed to slide relative to the stator rail 1 through magnetic action, thereby improving the control accuracy, and then improving the controllability, stability and reliability of the linear motor device.

[0062] In one embodiment, if Figures 1 to 5 As shown, the linear motor device further includes a housing 6 , and a drag chain 7 and / or a magnetic grid module 8 .

[0063] The stator track 1 , the sliding track 3 and the mover 4 are located in the housing 6 .

[0064] The drag chain 7 is located inside the shell 6. One end of the drag chain 7 is connected to the motor in the mover 4, and the other end of the drag chain 7 is connected to the hole in the shell 6. The control line of the motor passes through the inner cavity of the drag chain 7 and is led out from the hole. The control line of the motor is used to connect to the corresponding controller.

[0065] The magnetic grid module 8 is located in the housing 6 . The magnetic grid module 8 includes a magnetic grid scale 81 and a magnetic grid reader 82 . The magnetic grid scale 81 is arranged along the extension direction Dx, and the magnetic grid reader 82 is arranged on the mover 4 .

[0066] Specifically, the drag chain 7 can be used to protect the control line of the motor, reducing the possibility of the control line being worn against the inner wall of the housing 6 or other accidents occurring due to the continuous movement of the mover 4.

[0067] The magnetic grid module 8 can be used to detect the current relative position relationship between the mover 4 and the sliding track 3 in real time, so as to achieve better control of the mover 4.

[0068] Based on the above method, by arranging the drag chain 7 and the magnetic grid module 8 on the inner wall of the housing 6, the possibility of interference to the linear motor device by objects outside the linear motor device can be reduced as much as possible, thereby improving the reliability of the linear motor device.

[0069] In one embodiment, if Figures 1 to 5 As shown, the linear motor device further includes a housing 6 , and the stator track 1 , the sliding track 3 , and the mover 4 are located in the housing 6 .

[0070] The housing 6 includes a top cover 61 and a main housing 62;

[0071] The top cover 61 includes a main cover body 611, a mounting platform 612, a first accordion-type sealing cover 613 and a second accordion-type sealing cover 614. The mounting platform 612 is fixedly connected to the mover 4. One end of the mounting platform 612 in the extension direction Dx is fixedly connected to one end of the first accordion-type sealing cover 613, and the other end of the first accordion-type sealing cover 613 is fixedly connected to the main cover body 611. The other end of the mounting platform 612 in the extension direction Dx is fixedly connected to one end of the second accordion-type sealing cover 614, and the other end of the second accordion-type sealing cover 614 is fixedly connected to the main cover body 611, so that the first accordion-type sealing cover 613 and the second accordion-type sealing cover 614 can be compressed or stretched with the movement of the mover 4 in the extension direction Dx.

[0072] Specifically, based on the setting of the above-mentioned mounting platform 612, the first accordion-type sealing cover 613 and the second accordion-type sealing cover 614, when the mover 4 moves along the extension direction Dx, the first accordion-type sealing cover 613 is compressed and the second accordion-type sealing cover 614 is stretched, and when the mover 4 moves in the opposite direction of the extension direction Dx, the first accordion-type sealing cover 613 is stretched and the second accordion-type sealing cover 614 is compressed, but the top cover 61 and the main shell 62 can always be sealed to prevent external pollutants from entering the shell 6, thereby improving the reliability of the linear motor device.

[0073] This application also proposes an electronic device, see Figure 6 , Figure 6 This is a schematic diagram of the structure of an embodiment of the electronic device of the present application. Figure 6 As shown, the electronic device 100 includes a control device 300 and a linear motor device 200 , and the control device 300 is connected to the linear motor device 200 .

[0074] The linear motor device 200 may specifically be any of the linear motor devices described above, which will not be described in detail here.

[0075] Different from the prior art, in the technical solution of the present application, the stator track extends along the extension direction, a plurality of first magnetic teeth are arranged on the stator track at intervals along the extension direction, the sliding track extends along the extension direction, the mover is slidably connected to the sliding track, and the mover is used to slide relative to the sliding track in the extension direction, a plurality of second magnetic teeth are arranged on the mover at intervals along the extension direction, wires are wound around the second magnetic teeth to form an electromagnet, and a first magnet and a second magnet are sequentially arranged on the side of the second magnetic tooth facing the stator track along the extension direction, the side of the first magnet facing the stator track is the N pole, and the side of the second magnet facing the stator track is the S pole. Based on the above method, the magnetic poles of the electromagnet can be switched so that the same second magnet Of the two magnets on the magnetic tooth, the state in which the magnetic field strength of the first magnet is greater than the magnetic field strength of the second magnet is switched, or the state in which the magnetic field strength of the first magnet is switched to be less than the magnetic field strength of the second magnet, so that the same second magnetic tooth can, in different states, perform a magnetic field effect, such as magnetic attraction, on the corresponding first magnetic tooth on the stator track based on the different magnets in the first magnet and the second magnet, so that the mover can slide relative to the stator track. That is, the basic function of the linear motor device can be realized by only arranging magnets on the mover, thereby reducing the amount of magnets required to be consumed on the linear motor device and reducing the cost of the linear motor device without affecting the normal operation of the linear motor device.

[0076] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0078] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0079] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (which can be a personal computer, server, network device, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0080] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A linear motor device, characterized in that: include: a stator track extending along an extension direction; a plurality of first magnetic teeth arranged on the stator track at intervals along the extending direction; A sliding track extending along the extension direction; a mover, the mover being slidably connected to the sliding track, and the mover being configured to slide relative to the sliding track in the extending direction; a plurality of second magnetic teeth arranged on the mover at intervals along the extending direction; Wherein, the second magnetic tooth is wound with an electric wire to form an electromagnet; On the second magnetic tooth, on a side facing the stator track, a first magnet and a second magnet are sequentially arranged along the extension direction; The side of the first magnet facing the stator track is an N pole, and the side of the second magnet facing the stator track is an S pole.

2. The linear motor device according to claim 1, wherein: The stator track includes a first track and a second track, and the mover includes a first motor and a second motor; The first magnetic teeth include a first sub-magnetic tooth provided on the first track and a second sub-magnetic tooth provided on the second track, and the second magnetic teeth include a third sub-magnetic tooth provided on the first motor and a fourth sub-magnetic tooth provided on the second motor; The first sub-magnetic tooth is disposed opposite to the third sub-magnetic tooth, and the second sub-magnetic tooth is disposed opposite to the fourth sub-magnetic tooth.

3. The linear motor device according to claim 2, wherein: The first direction is from the first sub-magnetic tooth toward the third sub-magnetic tooth, the second direction is from the second sub-magnetic tooth toward the fourth sub-magnetic tooth, and the third direction is from the mover toward the sliding track; At least one of the first direction and the second direction is different from the third direction.

4. The linear motor device according to claim 3, characterized in that Both the first direction and the second direction are different from the third direction.

5. The linear motor device according to claim 4, characterized in that: The sliding track is located below the mover, the component direction of the first direction on the horizontal plane is opposite to the component direction of the second direction on the horizontal plane, and the angle between the first direction and the third direction is equal to the angle between the second direction and the third direction.

6. The linear motor device according to claim 5, characterized in that: The first direction is non-parallel to the second direction.

7. The linear motor device according to claim 5, characterized in that: A projection of any one of the third sub-magnetic teeth on the horizontal plane and a projection of any one of the fourth sub-magnetic teeth on the horizontal plane only partially overlap or do not overlap in the fourth direction.

8. The linear motor device according to any one of claims 1 to 7, characterized in that: The linear motor device further comprises a housing, and includes a drag chain and / or a magnetic grid module; Wherein, the stator track, the sliding track and the mover are located in the housing; The drag chain is located in the housing, one end of the drag chain is connected to the motor in the mover, and the other end of the drag chain is connected to the hole in the housing. The control line of the motor passes through the inner cavity of the drag chain and is led out from the hole. The control line of the motor is used to connect to a corresponding controller; The magnetic grid module is located in the housing. The magnetic grid module includes a magnetic grid scale and a magnetic grid reader. The magnetic grid scale is arranged along the extension direction, and the magnetic grid reader is arranged on the mover.

9. The linear motor device according to any one of claims 1 to 7, characterized in that: The linear motor device further includes a housing, wherein the stator track, the sliding track, and the mover are located in the housing; The housing comprises a top cover and a main housing; The top cover includes a main cover body, a mounting platform, a first accordion-type sealing cover and a second accordion-type sealing cover. The mounting platform is fixedly connected to the mover. One end of the mounting platform in the extension direction is fixedly connected to one end of the first accordion-type sealing cover, and the other end of the first accordion-type sealing cover is fixedly connected to the main cover body. The other end of the mounting platform in the extension direction is fixedly connected to one end of the second accordion-type sealing cover, and the other end of the second accordion-type sealing cover is fixedly connected to the main cover body, so that the first accordion-type sealing cover and the second accordion-type sealing cover can be compressed or stretched as the mover moves in the extension direction.

10. An electronic device, characterized in that: The device comprises a control device and at least one linear motor device according to any one of claims 1 to 9, wherein the control device is connected to the linear motor device.

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