CN218829562U

CN218829562U - Linear motor and linear transport device

Info

Publication number: CN218829562U
Application number: CN202222688827.9U
Authority: CN
Inventors: 池峰; 聂成涛; 陈增辉
Original assignee: Shanghai Golytec Automation Co ltd
Current assignee: Guoli Zhizao Shanghai Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-04-07
Anticipated expiration: 2032-10-12

Abstract

The application discloses linear motor and linear conveyer, linear motor include stator module and active cell module, and the stator module includes stator body, first guide structure and second guide structure, and second guide structure is relative and the interval sets up with first guide structure, and stator body has accommodation space, and the stator module still includes armature winding, and armature winding is located accommodation space and is connected with stator body. The rotor module comprises a rotor body, a third guide structure and a fourth guide structure, the third guide structure is connected with the first guide structure in a sliding mode, the fourth guide structure is connected with the second guide structure in a sliding mode, the rotor module further comprises a magnet array, and the magnet array is connected with the rotor body, at least part of the magnet array extends into the containing space and is matched with the armature winding in a magnetic mode. The design can effectively reduce the thickness dimension of the linear motor.

Description

Linear motor and linear transport device

Technical Field

The application relates to the technical field of conveying devices, in particular to a linear motor and a linear conveying device.

Background

The linear motor comprises a stator module and a rotor module, the rotor module is connected with the stator module in a sliding mode, and the rotor module bears an external part to be processed. In the related art, the thickness dimension of the entire linear motor is large, resulting in a high space occupancy rate of the linear motor. Therefore, how to effectively reduce the thickness of the linear motor has become an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a linear motor and a linear conveying device, which can effectively reduce the thickness of the linear motor.

In a first aspect, embodiments of the present application provide a linear motor; the linear motor comprises a stator module and a rotor module. The stator module comprises a stator body, a first guide structure and a second guide structure, wherein the first guide structure is arranged on the stator body and extends along a first direction, the second guide structure is arranged on the stator body and extends along the first direction, the second guide structure is opposite to the first guide structure and is arranged at intervals, the stator body is provided with an accommodating space, the stator module further comprises an armature winding, and the armature winding is located in the accommodating space and is connected with the stator body. The rotor module comprises a rotor body, a third guide structure and a fourth guide structure, wherein the third guide structure is arranged on the rotor body and extends along the first direction, the fourth guide structure is arranged on the rotor body and extends along the first direction, the third guide structure is connected with the first guide structure in a sliding mode, the fourth guide structure is connected with the second guide structure in a sliding mode, the rotor module further comprises a magnet array, and the magnet array is connected with the rotor body, at least part of the magnet array extends into the accommodating space to be matched with the armature winding in a magnetic mode.

According to the linear motor, the armature winding is in magnetic fit with the magnet array, alternating current is introduced into the armature winding to generate an alternating magnetic field, the magnet array is in magnetic coupling with the electrified armature winding, and the magnet array does motion for cutting magnetic induction lines in the alternating magnetic field under the action of the magnetic motive force, so that the rotor body connected with the magnet array is driven to move relative to the stator module. Through set up accommodation space on stator body, the magnet array can stretch into accommodation space in with armature winding magnetic fit, makes active cell module and stator module structure in the space set up compacter, can reduce the holistic thickness size of linear motor to reduce linear motor's space occupancy. Through set up first guide structure and second guide structure on stator body to set up in the third guide structure that first guide structure slided and connects on the active cell body, and set up and slide complex fourth guide structure with second guide structure, form two guide rail cooperation design, effectively strengthen the stability of active cell module motion on stator module, and make active cell module have bigger bearing capacity treat the processing part with the outside of bearing more heavy weight.

In a second aspect, the present application provides a linear conveyor, which includes a rack and the above linear motors, all of which are mounted on the rack.

Based on the linear conveying device in the embodiment of the application, the linear conveying device with the linear motor has good conveying efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a linear motor according to an embodiment of the present application;

FIG. 2 is a schematic front view of the linear motor of FIG. 1;

FIG. 3 is a schematic view of a linear motor in another embodiment of the present application from a first perspective;

FIG. 4 is a schematic diagram of a linear motor in another embodiment of the present application from a second perspective;

FIG. 5 is a schematic front view of the linear motor of FIG. 3;

FIG. 6 is a schematic diagram of a linear transport apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a linear conveying device in another embodiment of the present application.

Reference numerals: 1. a linear transport device; 10. a linear motor; 11. a stator module; 111. a stator body; 1111. a base plate; 1112. a first side plate; 1113. a second side plate; 1114. an accommodating space; 1115. opening the opening; 1116. a heat dissipation channel; 112. a first guide structure; 113. a second guide structure; 114a, a guide rail; 114b, a guide chute; 115. an armature winding; 116. a circuit board assembly; 12. a mover module; 121. a mover body; 122. a third guide structure; 123. a fourth guide structure; 124a, a ball slider; 124b, a guide pulley; 125. a magnet array; 131. a limiting structure; 131a, a limiting pulley; 132. a mating structure; 132a, a limit slide rail; 14. a heat dissipation structure; 141. heat dissipation holes; 142. a heat radiation fan; 1421. an air outlet; 20. a frame; 30. a connecting and conveying module; 40. an auxiliary conveying module; 50. an expansion module; x, a first direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1, a first aspect of the present application provides a linear motor 10, which can effectively reduce the thickness dimension of the linear motor 10.

The linear motor 10 includes a stator module 11 and a mover module 12. The stator module 11 includes a stator body 111, a first guide structure 112 disposed on the stator body 111 and extending along the first direction X, and a second guide structure 113 disposed on the stator body 111 and extending along the first direction X, the second guide structure 113 is opposite to the first guide structure 112 and is disposed at an interval, the stator body 111 has an accommodating space 1114, the stator module 11 further includes an armature winding 115, and the armature winding 115 is disposed in the accommodating space 1114 and is connected to the stator body 111. The mover module 12 includes a mover body 121, a third guide structure 122 disposed on the mover body 121 and extending along the first direction X, and a fourth guide structure 123 disposed on the mover body 121 and extending along the first direction X, where the third guide structure 122 is slidably connected to the first guide structure 112, the fourth guide structure 123 is slidably connected to the second guide structure 113, the mover module 12 further includes a magnet array 125, and the magnet array 125 is connected to the mover body 121 and at least partially extends into the accommodating space 1114 to be magnetically matched with the armature winding 115.

The following description will be made with reference to fig. 1 to 5 for describing a specific structure of the linear motor 10, wherein the linear motor 10 includes a stator module 11 and a mover module 12.

As shown in fig. 1-2, the stator module 11 serves as a track for supporting the mover module 12 in the linear motor 10 and for moving the mover module 12.

The stator module 11 includes a stator body 111, a first guide structure 112, a second guide structure 113, and an armature winding 115.

The stator body 111 serves as a base member in the stator module 11. The specific material for manufacturing the stator body 111 is not limited herein, and it is understood that the stator body 111 should be made of a material having good rigidity and strength, so that the stator body 111 is not prone to failure (such as bending or breaking) under an external force, for example, the material for manufacturing the stator body 111 may be, but not limited to, steel, aluminum alloy, and the like. The specific structure of the stator body 111 will be described later.

The stator body 111 has an accommodating space 1114, and the accommodating space 1114 is a hollow area in the stator body 111 for accommodating other components, and the specific shape of the accommodating space 1114 is not limited herein.

The first guiding structure 112 serves as one of the tracks of the stator module 11 for the movement of the sub-module 12, and the detailed representation of the first guiding structure 112 will be described below.

The first guiding structure 112 is disposed on the stator body 111, wherein the first guiding structure 112 may be detachably connected or non-detachably connected with the stator body 111, when the first guiding structure 112 is detachably connected with the stator body 111, the first guiding structure 112 may be screwed with the stator body 111 by a locking screw, and when the first guiding structure 112 is non-detachably connected with the stator body 111, the first guiding structure 112 may be formed into an integrated structure with the stator body 111 by a 3D injection molding. The relative positional relationship between the first guide structure 112 and the stator body 111 will be described later.

The first guide structure 112 extends in the first direction X.

The second guiding structure 113 serves as another track in the stator module 11 for providing the sub-module 12 to move, and the detailed expression of the second guiding structure 113 will be described below.

The second guiding structure 113 is disposed on the stator body 111, wherein the second guiding structure 113 may be detachably connected or non-detachably connected with the stator body 111, when the second guiding structure 113 is detachably connected with the stator body 111, the second guiding structure 113 may be screwed with the stator body 111 by a locking screw, and when the second guiding structure 113 is non-detachably connected with the stator body 111, the second guiding structure 113 may be formed into an integrated structure with the stator body 111 by a 3D injection molding. The relative positional relationship between the second guide structure 113 and the stator body 111 will be described later. It should be noted that the second guide structure 113 and the first guide structure 112 cooperate to form a double track for the movement of the sub-module 12, and the specific form of the second guide structure 113 may be the same as or different from that of the first guide structure 112.

The second guiding structure 113 extends along the first direction X, and the second guiding structure 113 is opposite to the first guiding structure 112 and spaced apart from the first guiding structure.

The armature winding 115 is used as a power source for driving the rotor module 12 to operate in the stator module 11, the armature winding 115 is formed by winding a plurality of turns of coils, and the armature winding 115 is suitable for being electrified to generate a magnetic field.

The armature winding 115 is located in the accommodating space 1114 and connected to the stator body 111. Here, the specific installation manner of the armature winding 115 in the accommodating space 1114 of the stator body 111 is not limited, and a designer can reasonably design the armature winding according to actual needs.

The mover module 12 serves as a carrier for carrying the external component to be processed in the linear motor 10 and moving the external component to be processed on the stator module 11.

The mover module 12 includes a mover body 121, a third guide structure 122, a fourth guide structure 123, and a magnet array 125.

The mover body 121 serves as a base of the mover module 12. The specific material for manufacturing the mover body 121 is not limited herein, and it can be understood that the mover body 121 should be made of a material with good rigidity and strength, so that the mover body 121 is not prone to failure (such as bending or breaking) under an external force, for example, the material for manufacturing the mover body 121 may be, but is not limited to, steel, aluminum alloy, and the like. Of course, the specific structure of the mover body 121 is not limited, and a designer may design the mover body reasonably according to actual needs.

The third guiding structure 122 serves as a track for slidably cooperating with the stator module 11 in one of the mover modules 12, and a detailed expression of the third guiding structure 122 will be described below.

The third guiding structure 122 is disposed on the mover body 121, wherein the third guiding structure 122 may be detachably connected or non-detachably connected with the mover body 121, when the third guiding structure 122 is detachably connected with the mover body 121, the third guiding structure 122 may be threadedly connected with the mover body 121, for example, by a locking screw, and when the third guiding structure 122 is non-detachably connected with the mover body 121, the third guiding structure 122 may form an integrated structure with the mover body 121, for example, by 3D injection molding. The relative positional relationship between the third guide structure 122 and the mover body 121 will be described later.

The third guiding structure 122 extends along the first direction X, and the third guiding structure 122 is slidably connected to the first guiding structure 112.

The fourth guiding structure 123 serves as a rail for slidably cooperating with the stator module 11 as another one of the mover modules 12, and a detailed expression of the fourth guiding structure 123 will be described later.

The fourth guiding structure 123 is disposed on the mover body 121, wherein the fourth guiding structure 123 may be detachably connected or non-detachably connected with the mover body 121, when the fourth guiding structure 123 is detachably connected with the mover body 121, the fourth guiding structure 123 may be screwed with the mover body 121, for example, by using a locking screw, and when the fourth guiding structure 123 is non-detachably connected with the mover body 121, the fourth guiding structure 123 may form an integrated structure with the mover body 121, for example, by using a 3D injection molding method. A description will be made below regarding a relative positional relationship between the fourth guide structure 123 and the mover body 121. It should be noted that the fourth guiding structure 123 and the third guiding structure 122 cooperate to form a double track for sliding fit with the stator module 11, and the concrete form of the fourth guiding structure 123 and the concrete form of the third guiding structure 122 may be the same or different.

The fourth guiding structure 123 extends along the first direction X, and the fourth guiding structure 123 is connected with the second guiding structure 113 in a sliding manner.

The magnet array 125 serves as a component of the stator module 11 for magnetically engaging the armature windings 115.

The magnet array 125 is connected with the mover body 121, and the specific connection mode between the magnet array 125 and the mover body 121 is not limited, so that a designer can reasonably design according to actual needs.

At least a portion of the magnet array 125 extends into the receiving space 1114 of the stator body 111 and magnetically engages the armature winding 115.

Alternating current is introduced into the armature winding 115 to generate an alternating magnetic field, the magnet array 125 is magnetically coupled with the energized armature winding 115, and the magnet array 125 cuts magnetic induction lines in the alternating magnetic field under the action of the magnetic motive force, so that the mover body 121 connected with the magnet array is driven to move relative to the stator module 11.

It should be noted that the number of the magnet arrays 125 may be one or multiple (more than two), the magnet arrays 125 may be halbach arrays, and one side of the halbach arrays where the magnetic lines of force are strengthened is disposed close to the armature winding 115. It can be understood that, under the condition that the magnitude of the alternating current passed through the armature winding 115 is not changed, the number of the magnet arrays 125 determines the magnitude of the magnetic motive force received by the magnet arrays 125 in the alternating magnetic field, for example, the greater the number of the magnet arrays 125, the greater the magnetic motive force received by the armature winding 115 after being energized and magnetically coupled with the magnet arrays 125, so that the mover body 121 can bear the external component to be processed with a greater weight. That is to say, the magnet arrays 125 have expandability, and a designer can adjust the number of the magnet arrays 125 according to the weight of the external to-be-processed component actually required to be carried by the mover body 121, so that the mover body 121 can be matched with the external to-be-processed components with different weights. Of course, in the case that the number of the magnet arrays 125 is kept unchanged, the magnitude of the magnetomotive force can be changed by singly changing the magnitude of the alternating current, so that the rotor body 121 can be matched with external parts to be machined with different weights.

Based on the linear motor 10 in the embodiment of the present application, the armature winding 115 is magnetically matched with the magnet array 125, alternating current is introduced into the armature winding 115 to generate an alternating magnetic field, the magnet array 125 is magnetically coupled with the energized armature winding 115, and the magnet array 125 performs a motion of cutting magnetic induction lines in the alternating magnetic field under the action of the magnetic motive force, so as to drive the mover body 121 connected thereto to move relative to the stator module 11. By providing the accommodating space 1114 in the stator body 111, the magnet array 125 can be inserted into the accommodating space 1114 to magnetically cooperate with the armature winding 115, so that the stator module 12 and the stator module 11 can be spatially arranged more compactly, the thickness of the entire linear motor 10 can be reduced, and the space occupancy rate of the linear motor 10 can be reduced. Through set up first guide structure 112 and second guide structure 113 on stator body 111 to set up the third guide structure 122 of being connected with first guide structure 112 and set up the fourth guide structure 123 of cooperating with second guide structure 113 that slides on active cell body 121, form two guide rail cooperation designs, the stability of active cell module 12 motion on stator module 11 is effectively strengthened, and make active cell module 12 have bigger bearing capacity in order to bear the weight of the outside part of treating of bigger weight.

As shown in fig. 1-2, considering that the stator body 111 serves as a base of the stator module 11, on one hand, the first guide structure 112 and the second guide structure 113 need to be installed, and on the other hand, enough installation space needs to be reserved for other components such as the armature winding 115 and the magnet array 125, so as to enable the stator body 111 to have corresponding functions, the stator body 111 is designed to include a bottom plate 1111, a first side plate 1112, and a second side plate 1113 in some embodiments. The bottom plate 1111 and the armature winding 115 may be directly connected or may be disposed at an interval, the first side plate 1112 extends along the first direction X and is connected to the bottom plate 1111, the second side plate 1113 extends along the first direction X and is connected to the bottom plate 1111, the first side plate 1112 and the second side plate 1113 together form an accommodating space 1114, the free end of the first side plate 1112 far from the bottom plate 1111 and the free end of the second side plate 1113 far from the bottom plate 1111 form an opening 1115 of the accommodating space 1114, the first guiding structure 112 is disposed on the first side plate 1112 and is located at one side of the opening 1115, and the second guiding structure 113 is disposed on the second side plate 1113 and is located at one side of the opening 1115. In this design, by disposing the first guide structure 112 on the first side plate 1112 and the second guide structure 113 on the second side plate 1113, compared with disposing the first guide structure 112 and the second guide structure 113 directly on the bottom plate 1111, on the one hand, the occupancy rate of the first guide structure 112 and the second guide structure 113 in the accommodation space 1114 can be saved, so that a sufficient space is reserved for other components such as the armature winding 115 and the magnet array 125, and on the other hand, the difficulty in mounting between the first guide structure 112 and the third guide structure 122 and between the second guide structure 113 and the fourth guide structure 123 can be effectively reduced.

Of course, in other embodiments, the bottom plate 1111, the first side plate 1112, the second side plate 1113 and the armature winding 115 are configured together to form the accommodating space 1114, and the free end of the first side plate 1112 far away from the bottom plate 1111, the free end of the second side plate 1113 far away from the bottom plate 1111 and the end of the armature winding 115 near the second side plate 1113 are configured together to form the opening 1115 of the accommodating space 1114. The first guiding structure 112 is disposed on a side of the first side plate 1112 facing away from the bottom plate 1111 and the opening 1115; the second guiding structure 113 is disposed on the second side plate 1113 and is located on a side of the second side plate 1113 facing away from the bottom plate 1111 and the opening 1115. In this design, by disposing the first guide structure 112 on the first side plate 1112 and the second guide structure 113 on the second side plate 1113, compared with disposing the first guide structure 112 and the second guide structure 113 directly on the bottom plate 1111, on the one hand, the occupancy rate of the first guide structure 112 and the second guide structure 113 in the accommodating space 1114 can be saved, so that a sufficient space is reserved for other components such as the armature winding 115 and the magnet array 125, and on the other hand, the difficulty in mounting between the first guide structure 112 and the third guide structure 122 and between the second guide structure 113 and the fourth guide structure 123 can be effectively reduced.

As shown in fig. 1 to 5, considering that the concrete form of the first guide structure 112 may be the same as or different from that of the second guide structure 113, the concrete form of the third guide structure 122 may be the same as or different from that of the fourth guide structure 123, and the first guide structure 112 and the third guide structure 122 are slidably connected, and the second guide structure 113 and the fourth guide structure 123 are slidably connected, so as to realize that the entire mover module 12 moves along the first direction X relative to the stator module 11, the concrete forms of the first guide structure 112, the second guide structure 113, the third guide structure 122 and the fourth guide structure 123 may be, but are not limited to, one or more of the following embodiments.

In the first embodiment, one of the first guide structure 112 and the third guide structure 122 includes a guide rail 114a, the guide rail 114a is connected to one of the stator body 111 and the mover body 121, the other of the first guide structure 112 and the third guide structure 122 includes a plurality of ball sliders 124a slidably engaged with the guide rail 114a, and all the ball sliders 124a are connected to the other of the stator body 111 and the mover body 121. In this design, the ball slider 124a is slidably engaged with the guide rail 114a to realize sliding connection between the first guide structure 112 and the third guide structure 122 along the first direction X, so as to realize movement of the mover module 12 relative to the stator module 11 along the first direction X.

In the second embodiment, one of the first guide structure 112 and the third guide structure 122 includes a guide pulley 124b, the guide pulley 124b is connected to one of the stator body 111 and the mover body 121, the other of the first guide structure 112 and the third guide structure 122 includes a guide sliding slot 114b slidably engaged with the guide pulley 124b, and the other of the stator body 111 and the mover body 121 is provided with the guide sliding slot 114b. In this design, the guide pulley 124b rolls in the guide sliding groove 114b, so as to realize the sliding connection between the first guide structure 112 and the third guide structure 122 along the first direction X, thereby realizing the movement of the mover module 12 relative to the stator module 11 along the first direction X.

In the third embodiment, one of the second guide structure 113 and the fourth guide structure 123 includes a guide rail 114a, the guide rail 114a is connected to one of the stator body 111 and the mover body 121, the other of the second guide structure 113 and the fourth guide structure 123 includes a plurality of ball sliders 124a slidably engaged with the guide rail 114a, and all the ball sliders 124a are connected to the other of the stator body 111 and the mover body 121. In this design, the ball slider 124a is in sliding fit with the guide rail 114a, so as to realize sliding connection between the second guide structure 113 and the fourth guide structure 123 along the first direction X, thereby realizing movement of the mover module 12 relative to the stator module 11 along the first direction X.

In the fourth embodiment, one of the second guide structure 113 and the fourth guide structure 123 includes a guide pulley 124b, the guide pulley 124b is connected to one of the stator body 111 and the mover body 121, the other of the second guide structure 113 and the fourth guide structure 123 includes a guide sliding groove 114b slidably engaged with the guide pulley 124b, and the other of the stator body 111 and the mover body 121 is provided with the guide sliding groove 114b. In this design, the guide pulley 124b rolls in the guide sliding groove 114b, so as to realize the sliding connection between the second guide structure 113 and the fourth guide structure 123 along the first direction X, thereby realizing the movement of the mover module 12 relative to the stator module 11 along the first direction X.

Of course, in other embodiments, one of the first guide structure 112 and the third guide structure 122 includes a guide slide rail 114a, the guide slide rail 114a is connected to one of the stator body 111 and the mover body 121, the other of the first guide structure 112 and the third guide structure 122 is a guide slide groove 114b slidably engaged with the guide slide rail 114a, and the other of the stator body 111 and the mover body 121 is provided with a guide slide groove 114b. In this design, the guide rail 114a slides in the guide sliding slot 114b to realize the sliding connection between the first guide structure 112 and the third guide structure 122 along the first direction X, so as to realize the movement of the mover module 12 relative to the stator module 11 along the first direction X.

Similarly, in other embodiments, one of the second guide structure 113 and the fourth guide structure 123 includes a guide sliding rail 114a, the guide sliding rail 114a is connected to one of the stator body 111 and the mover body 121, the other of the second guide structure 113 and the fourth guide structure 123 is a guide sliding slot 114b slidably engaged with the guide sliding rail 114a, and the other of the stator body 111 and the mover body 121 is provided with a guide sliding slot 114b. In this design, the guide slide rail 114a slides in the guide slide groove 114b, so as to realize sliding connection between the second guide structure 113 and the fourth guide structure 123 along the first direction X, thereby realizing movement of the mover module 12 relative to the stator module 11 along the first direction X.

As shown in fig. 3 to fig. 5, in view of the sliding fit between the first guide structure 112 and the third guide structure 122, and the sliding fit between the second guide structure 113 and the fourth guide structure 123, to achieve the movement of the mover module 12 relative to the stator module 11 in the first direction X, so as to further enhance the smoothness of the movement of the mover module 12 relative to the stator module 11 in the first direction X, so as to avoid the "jamming" phenomenon occurring during the movement of the mover module 12 relative to the stator module 11 in the first direction X, it is designed that, in some embodiments, the linear motor 10 further includes a limiting structure 131 and a matching structure 132, one of the limiting structure 131 and the matching structure 132 is disposed on the stator body 111, the other one of the limiting structure 131 and the matching structure 132 is disposed on the mover body 121, and the limiting structure 131 and the matching structure 132 are slidably matched in the first direction X, so as to limit the movement of the mover body 121 relative to the stator body 111 in a direction deviating from the first direction X. In this design, through design limit structure 131 and cooperation structure 132 along the cooperation of sliding of first direction X for mover body 121 can only follow first direction X motion relative to stator body 111, effectively strengthens the smoothness nature of mover body 121 relative to stator body 111 along the motion of first direction X. Of course, due to the existence of the limiting structure 131 and the matching structure 132, the accuracy of the sliding fit between the first guide structure 112 and the third guide structure 122 and the sliding fit between the second guide structure 113 and the fourth guide structure 123 can also be effectively reduced.

As shown in fig. 3 to 5, further, considering that there may be many specific embodiments of the limiting structure 131 and the engaging structure 132 for limiting the movement of the mover body 121 relative to the stator body 111 in the direction deviating from the first direction X, for example, the limiting structure 131 may be a limiting rod, and the engaging structure 132 may be a limiting hole slidably engaged with the limiting rod, and the outer surface of the limiting rod is designed to abut against a hole wall surface of the limiting hole in a plane perpendicular to the first direction X, so as to limit the movement of the mover body 121 relative to the stator body 111 in the direction deviating from the first direction X. To simplify the specific structure of the position limiting structure 131 and the matching structure 132, it is designed that in some embodiments, the position limiting structure 131 includes a position limiting pulley 131a, the position limiting pulley 131a is connected to one of the stator body 111 and the mover body 121, the matching structure 132 includes a position limiting slide rail 132a, the position limiting slide rail 132a is connected to the other one of the stator body 111 and the mover body 121, and an outer surface of the position limiting pulley 131a abuts against a side surface of the position limiting slide rail 132a in a direction along the first guide structure 112 toward the second guide structure 113. The number of the limiting slide rails 132a may be one, the number of the limiting pulleys 131a is two, each group of limiting pulleys 131a at least includes one pulley, the limiting slide rails 132a extend along the first direction X, the two groups of limiting pulleys 131a are respectively located on two sides of the limiting slide rails 132a, and the outer surfaces of the two groups of limiting pulleys 131a are respectively abutted to two side surfaces of the limiting slide rails 132a, which are arranged along the direction of the first guide structure 112 to the second guide structure 113. The number of the limiting slide rails 132a may also be two, the number of the limiting pulleys 131a is two, the two limiting slide rails 132a extend along the first direction X, the two limiting slide rails 132a are opposite and are arranged at intervals, the two limiting pulleys 131a are located between the two limiting slide rails 132a, one limiting pulley 131a corresponds to one limiting slide rail 132a, and the outer surface of each limiting pulley 131a abuts against the side surface of the corresponding limiting slide rail 132a in the direction pointing to the second guide structure 113 along the first guide structure 112. In this design, by designing the outer surface of the limit pulley 131a to abut against the limit slide rail 132a, the mover body 121 can be effectively limited from moving in the direction deviating from the first direction X with respect to the stator body 111, so that the smoothness of the movement of the mover body 121 in the first direction X with respect to the stator body 111 is enhanced; by designing the limiting pulley 131a, the limiting pulley 131a can also play a good supporting role on the mover body 121, so that the stability of the mover body 121 moving along the first direction X relative to the stator body 111 is further enhanced; through the design of the limiting pulley 131a, in the process that the mover moves along the first direction X relative to the stator, rolling friction is generated between the limiting pulley 131a and the stator body 111 or the mover body 121 which is in contact with the limiting pulley 131a, so that the stability of the movement of the mover body 121 is enhanced, and the movement resistance of the mover body 121 can be reduced.

Referring to fig. 3 and 5, in some embodiments, the mover body 121 further includes a roller for slidably connecting with the armature winding 115 in the stator body 111. It can be understood that the sliding connection between the roller and the armature winding 115 not only can bear the movement of the mover body 121, but also can make the movement of the mover body 121 on the stator body 111 smoother.

As shown in fig. 1 to 5, considering that the armature winding 115 is magnetically matched with the magnet array 125 to realize the movement of the mover module 12 relative to the stator module 11 along the first direction X, when the armature winding 115 is supplied with an alternating current, the armature winding 115 generates a large amount of heat, and the heat accumulated in the accommodating space 1114 of the stator body 111 may directly affect the service life of the armature winding 115, and may even have a safety hazard. In order to discharge the heat generated by the armature winding 115 during operation out of the accommodating space 1114 of the stator body 111 in time, in some embodiments, the linear motor 10 further includes a heat dissipation structure 14, the heat dissipation structure 14 is disposed on the stator body 111, and the heat dissipation structure 14 can diffuse the heat generated by the armature winding 115 during operation outwards.

As shown in fig. 1 to 5, further, in consideration of the fact that the heat dissipation structure 14 for dissipating the heat generated by the armature winding 115 during operation to the outside of the accommodating space 1114 of the stator body 111 has many specific forms, for example, the heat dissipation structure 14 may include a heat conduction element having good heat conduction performance, and the heat conduction element is in contact with the armature winding 115 and the stator body 111 to effectively transfer the heat generated by the armature winding 115 during operation to the stator body 111 in a heat conduction manner, so as to dissipate the heat of the armature winding 115. To simplify the specific structure of the heat dissipation structure 14, it is designed that in some embodiments, the stator body 111 includes a bottom plate 1111, a first side plate 1112 and a second side plate 1113, the first side plate 1112 extends along the first direction X and is connected to the bottom plate 1111, the second side plate 1113 extends along the first direction X and is connected to the bottom plate 1111, the first side plate 1112 and the second side plate 1113 together form an accommodation space 1114, the heat dissipation structure 14 includes at least one heat dissipation hole 141 communicating with the accommodation space 1114, and the heat dissipation hole 141 is located on at least one of the bottom plate 1111, the first side plate 1112 and the second side plate 1113. Here, the shape and size of the heat dissipation hole 141 are not limited, and a designer may reasonably design the shape and size of the heat dissipation hole 141 according to actual needs. In this design, the heat dissipation holes 141 are formed in at least one of the bottom plate 1111, the first side plate 1112 and the second side plate 1113, and the heat dissipation holes 141 are communicated with the accommodating space 1114, so that heat generated during the operation of the armature winding 115 is discharged from the heat dissipation holes 141 to the outside of the accommodating space 1114 in a heat convection manner, thereby achieving effective heat dissipation of the armature winding 115.

As shown in fig. 1-5, in order to increase the circulation speed of the heat generated by the armature winding 115 during operation flowing out of the accommodating space 1114 through the heat dissipation holes 141, the first side plate 1112 and/or the second side plate 1113 are provided with at least one heat dissipation hole 141, the accommodating space 1114 and the heat dissipation holes 141 on the first side plate 1112 and/or the second side plate 1113 form a heat dissipation channel 1116, the accommodating space 1114 includes the heat dissipation channel 1116, and the armature winding 115 is located in the heat dissipation channel 1116. The heat dissipation structure 14 further includes a heat dissipation fan 142, the heat dissipation fan 142 has an air outlet 1421 disposed facing the heat dissipation hole 141, and the airflow flowing out of the air outlet 1421 flows through the armature winding 115 in the heat dissipation channel 1116 and then flows out of the heat dissipation hole 141. Wherein, radiator fan 142's quantity can be one also can be a plurality of, and the designer can carry out rational design according to actual need. In this design, since the heat dissipation hole 141 and the accommodation space 1114 form the heat dissipation channel 1116, by designing the heat dissipation fan 142, the flow of the ambient air around the armature winding 115 can be accelerated by the airflow flowing out of the air outlet 1421 of the heat dissipation fan 142, thereby further accelerating the heat generated by the armature winding 115 during operation to be discharged out of the accommodation space 1114 through the heat dissipation hole 141.

Specifically, referring to fig. 1 and fig. 2, in an embodiment, the first side plate 1112 is provided with at least one heat dissipation hole 141. The heat dissipation fan 142 is located in the accommodating space 1114 and connected to the bottom plate 1111, the air outlet 1421 is disposed facing the heat dissipation hole 141 located on the first side plate 1112, the armature winding 115 is located between the heat dissipation fan 142 and the first side plate 1112, and the airflow flowing out from the air outlet 1421 flows through the armature winding 115 and then flows out from the heat dissipation hole 141 located on the first side plate 1112. In this design, the air outlet 1421 of the heat dissipation fan 142 is aligned with the heat dissipation hole 141 on the first side plate 1112, and the armature winding 115 is disposed between the first side plate 1112 and the heat dissipation fan 142, so that the air flow flowing out of the heat dissipation fan 142 flows through the armature winding 115, and the heat generated by the armature winding 115 during operation can be discharged out of the accommodating space 1114 along with the air flow from the heat dissipation hole 141.

As shown in fig. 3, 4 and 5, in another embodiment, the first side plate 1112 is provided with at least one heat dissipation hole 141, and the second side plate 1113 is provided with at least one heat dissipation hole 141. The heat dissipation fan 142 is located outside the accommodating space 1114 and connected to the bottom plate 1111, the air outlet 1421 is disposed facing the heat dissipation hole 141 on the first side plate 1112, and the airflow flowing out of the air outlet 1421 flows into the heat dissipation channel 1116 from the heat dissipation hole 141 on the first side plate 1112, and flows out of the heat dissipation hole 141 on the second side plate 1113 after flowing through the armature winding 115 in the heat dissipation channel 1116. In this design, the air outlet 1421 of the heat dissipation fan 142 is aligned with the heat dissipation hole 141 on the first side plate 1112, and the heat dissipation fan 142 is disposed outside the accommodation space 1114, so that the airflow flowing out of the heat dissipation fan 142 flows into the heat dissipation channel 1116 from the heat dissipation hole 141 on the first side plate 1112, and the airflow will flow through the armature winding 115 in the heat dissipation channel 1116, thereby discharging the heat generated by the armature winding 115 during operation from the heat dissipation hole 141 on the second side plate 1113 to the outside of the accommodation space 1114 along with the airflow. It should be noted that, to further increase the speed of the heat generated by the operation of the armature winding 115 to be discharged out of the accommodating space 1114 through the heat dissipation holes 141, the heat dissipation holes 141 on the second side plate 1113 should be aligned with the heat dissipation holes 141 on the first side plate 1112.

As shown in fig. 1-5, it can be understood that the power on/off of the armature winding 115 needs to be controlled electrically, so the stator module 11 further includes a circuit board assembly 116, the circuit board assembly 116 is electrically connected to the armature winding 115, and the circuit board assembly 116 is located in the accommodating space 1114 and is connected to the bottom plate 1111. Here, the specific connection mode between the circuit board assembly 116 and the bottom plate 1111 is not limited, and a designer may design the circuit board assembly reasonably according to actual needs. The circuit board assembly 116 includes at least one circuit board, which may be a rigid circuit board, a flexible circuit board, or a combination of a rigid circuit board and a flexible circuit board, and the circuit board integrates electrical components such as sensors, controllers, transmitters, receivers, and the like. For example, the sensor on the circuit board may wirelessly transmit with the sensing element to obtain information such as the movement position and movement speed of the mover module 12, and transmit such information to the terminal through the transmitter, the terminal sends a control command to the receiver according to the production requirement, and the controller on the circuit board may control the energization time or the energization position of the armature winding 115 according to the control command. Considering that the circuit board assembly 116 also generates heat during operation, in order to enable the heat generated during operation of the circuit board to be exhausted from the accommodating space 1114 through the heat dissipating hole 141 as soon as possible, the circuit board assembly 116 is designed to be located at a side where the air outlet 1421 of the heat dissipating fan 142 is located. With such a design, the airflow flowing out of the air outlet 1421 of the heat dissipation fan 142 can pass through the circuit board assembly 116, so that the heat generated by the circuit board assembly 116 during operation can be discharged out of the accommodating space 1114 through the heat dissipation hole 141 along with the airflow. In addition, the circuit board assembly 116 is disposed on the side where the outlet wind of the heat dissipation fan 142 is located, so that the distance between the circuit board assembly 116 and the armature winding 115 is shortened, and the portability of the electrical connection between the armature winding 115 and the circuit board is improved.

In view of the limited weight that can be carried by the stator module 11, in order to enable the mover module 12 to carry the external part to be processed having a larger weight, it is possible to reduce the weight of the mover body 121 while ensuring sufficient structural strength of the mover body 121, and therefore it is designed that, in some implementations, the mover body 121 is provided with at least one lightening hole (not shown in the drawings) communicating with the accommodating space 1114. The specific shape and number of the lightening holes are not limited, and a designer can reasonably design according to actual needs. In this design, the weight of the mover body 121 can be reduced by the weight reduction hole, so that the mover module 12 can bear an external part to be processed having a larger weight. In addition, the lightening holes are communicated with the accommodating space 1114 and can also serve as the heat dissipation holes 141, heat generated when the armature winding 115 and the circuit board assembly 116 work can be discharged out of the accommodating space 1114 through the lightening holes, and the heat dissipation effect of the armature winding 115 and the circuit board assembly 116 is further improved.

Referring to fig. 6-7, a second aspect of the present application provides a linear transmission device 1 with good transmission efficiency.

The linear transporter 1 includes a frame 20 and the linear motor 10 described above.

The frame 20 serves as a support for the linear transporter 1. The specific structure of the frame 20 is not limited, and designers can reasonably design the specific structure of the frame 20 according to different models of linear conveyors 1, for example, the frame 20 may be a single-layer frame structure or a multi-layer frame structure. The specific material for manufacturing the frame 20 is not limited, and the designer may reasonably select the specific material for manufacturing the frame 20 according to actual needs, for example, the frame 20 may be made of a material with good rigidity and strength, such as aluminum alloy, steel, and the like.

The number of the linear motors 10 is at least one.

The linear motor 10 is mounted on the frame 20, for example, please refer to fig. 1, both sides of the stator body 111 of the stator module 11 are provided with threaded holes, and the stator body 111 can be fixedly connected with the frame 20 by screws.

It should be noted that, when the number of the linear motors 10 is plural, the linear transmission device 1 has a plurality of mover modules 12, and the moving speeds of the mover modules 12 may be the same or different. When the entire linear motor 10 is installed on the rack 20 along the horizontal direction, and the bearing surface (the surface for bearing the external component to be processed) of the mover body 121 of the mover module 12 is parallel to the horizontal plane, the linear motor 10 is a horizontal linear motor 10, and the mover module 12 of the horizontal linear motor 10 is a horizontal mover module 12. When the entire linear motor 10 is vertically installed on the frame 20, the bearing surface of the mover body 121 of the mover module 12 is perpendicular to the horizontal plane, the linear motor 10 is a vertical linear motor 10, and the mover module 12 of the vertical linear motor 10 is a vertical mover module 12.

The linear conveyor 1 further comprises at least one docking conveyor module 30, the docking conveyor module 30 being mounted to the frame 20. All the docking conveyor modules 30 are spliced with all the linear motors 10 to form a conveyor line, and the plane of the conveying direction of the conveyor line is perpendicular to or parallel to the horizontal plane.

The docking conveying module 30 includes a base, a driving motor and a docking stator module, the docking stator module is connected with the base in a sliding manner, and the driving motor is used for driving the docking stator module to move relative to the base. The specific structure of the stator module to be plugged may be the same as the structure of the stator module 11 of the linear motor 10, and certainly, the specific structure of the stator module to be plugged may also be different from the structure of the stator module 11 of the linear motor 10, as long as the stator module to be plugged can connect the mover module 12 of the linear motor 10 to different conveying lines. It is to be noted that the different conveyor lines may be two mutually parallel conveyor lines on the same level of the frame 20, or the different conveyor lines may be two mutually parallel conveyor lines on different levels of the frame 20. The transfer speed of the mover module 12 of the linear motor 10 can be effectively increased by designing the docking conveyor module 30.

The linear transporter 1 further includes auxiliary transport modules 40, the number of the auxiliary transport modules 40 being at least one, the auxiliary transport modules 40 being mounted to the frame 20. All the auxiliary conveying modules 40 are spliced with all the linear motors 10 to form a conveying line, and the plane of the conveying direction of the conveying line is perpendicular to or parallel to the horizontal plane.

The auxiliary conveying module 40 may be one or more of a belt conveying line, a magnetic adsorption conveying line, and a buckle conveying line. The auxiliary conveying module 40 is suitable for the conditions of low conveying speed and low conveying precision requirement. The auxiliary transport module 40 can effectively reduce the cost of the linear transport system.

Specifically, when supplementary transport module 40 is for taking the conveying line, supplementary transport module 40 includes conveying motor, action wheel, from driving wheel and hold-in range, conveying motor's pivot and action wheel fixed connection, the hold-in range is around establishing the action wheel and following the driving wheel, conveying motor's pivot is rotated and is driven the action wheel of being connected with it and rotate, the action wheel rotates the hold-in range that drives it and laminates and moves under the effect of frictional force, the hold-in range motion drives it and laminates from the driving wheel and rotate under the effect of frictional force.

The linear conveyer 1 further includes an expanding module 50 (as shown in fig. 3), the expanding module 50 is installed on a side of the mover body 121 away from the stator body 111, and the expanding module 50 is used for carrying an external component to be processed.

The expansion module 50 serves as an additional component of the mover module 12, and a specific material for manufacturing the expansion module 50 is not limited herein, for example, the material for manufacturing the expansion module 50 may be plastic, the plastic has the characteristics of light weight, low cost, and the like, and the material for manufacturing the expansion module 50 may also be an acrylic plate. The expansion module 50 may include a load table to increase a bearing area of the mover body 121 so that the mover module 12 may transport a larger volume of an external part to be processed. The expansion module 50 and the mover body 121 may be detachably connected or non-detachably connected. When the expansion module 50 is detachably connected with the mover body 121, the expansion module 50 may be connected with the mover body 121 through at least one of the manners of screwing, clamping, magnetic adsorption, and the like; when the expansion module 50 is non-detachably connected with the mover body 121, the expansion module 50 and the mover body 121 may be connected with the mover body 121 by gluing or welding.

As shown in fig. 6, fig. 6 is a schematic structural diagram of a linear conveyer 1 according to an embodiment of the present application.

Referring to fig. 4 and 6 together, the linear transporter 1 includes a frame 20, a linear motor 10, a docking conveyor module 30, and an auxiliary conveyor module 40. The frame 20 is divided into an upper layer and a lower layer, the conveying line on the upper layer is provided with a plurality of processing stations, when the mover module 12 stays at different processing stations, an execution structure (such as a manipulator, not shown in the figure) on the processing station processes an external part to be processed on the mover body 121 of the mover module 12, and after the external part to be processed is processed, the mover module 12 is conveyed to the conveying line on the lower layer for backflow through the connection conveying module 30 installed at the end of the frame 20.

As shown in fig. 7, fig. 7 is a schematic structural diagram of a linear conveyer 1 in another embodiment of the present application.

Referring to fig. 4 and 7 together, the linear transporter 1 includes a frame 20, a linear motor 10, a docking conveyor module 30, and an auxiliary conveyor module 40. The frame 20 is divided into an upper layer and a lower layer, the conveying line on the upper layer is provided with a plurality of processing stations, when the mover module 12 stays on different processing stations, an execution structure (such as a manipulator, not shown in the figure) on the processing station processes an external part to be processed on the mover body 121 of the mover module 12, and after the external part to be processed is processed, the mover module 12 is conveyed to the auxiliary conveying module 40 on the lower layer through the connecting conveying module 30 installed at the end of the frame 20 to be refluxed. The auxiliary conveying module 40 in this embodiment is a belt conveying module, which has the advantages of stable conveying and low setting cost, and can reduce the setting cost of the whole linear conveying device 1. It can be understood that, with reference to the belt conveying line described above, when the mover module 12 performs backflow on the belt conveying line, the surface of the expansion module 50 close to the mover body 121 may perform backflow in a friction transmission manner with the belt. Further, one or more friction blocks may be disposed at a friction transmission position between the expansion module 50 and the belt to increase a friction force between the expansion module 50 and the belt, so that the auxiliary conveying module 40 has a better transmission effect on the mover module 12.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A linear motor, comprising:

the stator module comprises a stator body, a first guide structure and a second guide structure, wherein the first guide structure is arranged on the stator body and extends along a first direction, the second guide structure is arranged on the stator body and extends along the first direction, and the second guide structure is opposite to the first guide structure and is arranged at intervals; the stator body is provided with an accommodating space, the stator module further comprises an armature winding, and the armature winding is located in the accommodating space and connected with the stator body; and

the rotor module comprises a rotor body, a third guide structure and a fourth guide structure, wherein the third guide structure is arranged on the rotor body and extends along the first direction, the fourth guide structure is arranged on the rotor body and extends along the first direction, the third guide structure is connected with the first guide structure in a sliding mode, and the fourth guide structure is connected with the second guide structure in a sliding mode; the rotor module further comprises a magnet array, and the magnet array is connected with the rotor body, at least part of the magnet array extends into the accommodating space and is in magnetic fit with the armature winding.

2. The linear motor of claim 1, wherein the stator body comprises:

the bottom plate is connected with the armature winding or arranged at intervals;

the first side plate extends along the first direction and is connected with the bottom plate; and

a second side plate extending in the first direction and connected to the bottom plate;

the bottom plate, the first side plate and the second side plate form the accommodating space together, the free end of the bottom plate and the free end of the second side plate are far away from the accommodating space, the opening of the accommodating space is formed by the free end of the bottom plate, the first guide structure is arranged at the first side plate and is located at one end where the opening is formed, and the second guide structure is arranged at the second side plate and is located at one end where the opening is formed.

3. The linear motor of claim 1,

one of the first guide structure and the third guide structure comprises a guide slide rail, the guide slide rail is connected with one of the stator body and the rotor body, the other one of the first guide structure and the third guide structure comprises a plurality of ball slide blocks matched with the guide slide rail in a sliding manner, and all the ball slide blocks are connected with the other one of the stator body and the rotor body; or

One of the first guide structure and the third guide structure comprises a guide pulley, the guide pulley is connected with one of the stator body and the rotor body, the other of the first guide structure and the third guide structure comprises a guide sliding groove in sliding fit with the guide pulley, and the other of the stator body and the rotor body is provided with the guide sliding groove;

and/or the presence of a gas in the gas,

one of the second guide structure and the fourth guide structure comprises a guide slide rail, the guide slide rail is connected with one of the stator body and the rotor body, the other of the second guide structure and the fourth guide structure comprises a plurality of ball slide blocks in sliding fit with the guide slide rail, and all the ball slide blocks are connected with the other of the stator body and the rotor body; or

One of the second guide structure and the fourth guide structure comprises a guide pulley, the guide pulley is connected with one of the stator body and the rotor body, the other of the second guide structure and the fourth guide structure comprises a guide sliding groove in sliding fit with the guide pulley, and the other of the stator body and the rotor body is provided with the guide sliding groove.

4. The linear motor of claim 1,

the linear motor further comprises a limiting structure and a matching structure, one of the limiting structure and the matching structure is arranged on the stator body, the other of the limiting structure and the matching structure is arranged on the rotor body, and the limiting structure and the matching structure are in sliding fit along the first direction so as to limit the rotor body to move towards the direction deviating from the first direction relative to the stator body.

5. The linear motor of claim 4,

the limiting structure comprises a limiting pulley, the limiting pulley is connected with the stator body and one of the rotor bodies, the matching structure comprises a limiting slide rail, the limiting slide rail is connected with the stator body and the other of the rotor bodies, the first guide structure points to the direction of the second guide structure, and the outer surface of the limiting pulley is abutted against the side surface of the limiting slide rail.

6. The linear motor of claim 1,

the linear motor further comprises a heat dissipation structure, the heat dissipation structure is arranged on the stator body, and the heat dissipation structure can outwards diffuse the heat generated by the armature winding during working.

7. The linear motor of claim 6,

the stator body comprises a bottom plate, a first side plate and a second side plate, the first side plate extends along the first direction and is connected with the bottom plate, the second side plate extends along the first direction and is connected with the bottom plate, and the bottom plate, the first side plate and the second side plate together form the accommodating space;

the heat dissipation structure comprises at least one heat dissipation hole communicated with the accommodating space, and the heat dissipation hole is located on at least one of the bottom plate, the first side plate and the second side plate.

8. The linear motor of claim 7,

the first side plate and/or the second side plate are/is provided with at least one heat dissipation hole, the accommodating space and the heat dissipation holes on the first side plate and/or the second side plate form a heat dissipation channel, the accommodating space comprises the heat dissipation channel, and the armature winding is positioned in the heat dissipation channel;

the heat dissipation structure further comprises a heat dissipation fan, the heat dissipation fan is provided with an air outlet facing the heat dissipation hole, and airflow flowing out of the air outlet flows out of the heat dissipation hole after flowing through the armature winding in the heat dissipation channel.

9. The linear motor of claim 8, wherein the first side plate is provided with at least one of the heat dissipating holes;

the heat dissipation fan is located in the accommodating space and connected with the bottom plate, the air outlet is arranged facing the heat dissipation holes in the first side plate, the armature winding is located between the heat dissipation fan and the first side plate, and airflow flowing out of the air outlet can flow out of the heat dissipation holes in the first side plate after flowing through the armature winding.

10. The linear motor of claim 8, wherein the first side plate defines at least one of the heat dissipation apertures, and the second side plate defines at least one of the heat dissipation apertures;

the heat dissipation fan is located outside the accommodating space and connected with the bottom plate, the air outlet is arranged towards the heat dissipation holes in the first side plate, airflow flowing out of the air outlet flows into the heat dissipation channel from the heat dissipation holes in the first side plate, and flows out of the heat dissipation holes in the second side plate after flowing through the armature winding in the heat dissipation channel.

11. The linear motor of claim 8,

the stator module further comprises a circuit board assembly electrically connected with the armature winding, the circuit board assembly is located in the accommodating space and connected with the bottom plate, and the circuit board assembly is further located on one side of the heat dissipation fan where the air outlet is located.

12. The linear motor according to any one of claims 1 to 11,

the rotor body is provided with at least one lightening hole communicated with the accommodating space.

13. A linear transport apparatus, comprising:

a frame;

at least one linear motor as claimed in any one of claims 1 to 12, all of which are mounted to the chassis.

14. The linear transport device of claim 13,

the linear conveying device also comprises at least one connecting conveying module arranged on the rack, all the connecting conveying modules are spliced with all the linear motors to form a conveying line, and the plane where the conveying direction of the conveying line is located is vertical to or parallel to the horizontal plane; and/or

The linear conveying device further comprises at least one auxiliary conveying module arranged on the rack, all the auxiliary conveying modules are spliced with all the linear motors to form a conveying line, and the plane where the conveying direction of the conveying line is located is perpendicular to or parallel to the horizontal plane.

15. The linear transport device of claim 13,

the linear conveying device further comprises an expanding module, the expanding module is installed on one side, far away from the stator body, of the rotor body, and the expanding module is used for bearing an external part to be machined.