DE-112024002477-T5 - Linear motor module and linear conveyor system

Abstract

The present invention relates to a linear motor module (3) comprising a drive board (50) and a base element (20). A seat section (22) is provided in the base element (20). A plurality of spaces (24) are formed in a side section of the seat section (22), spaced apart from one another in the longitudinal direction. A plurality of projections (52) are formed in the drive board (50), which are inserted into the plurality of spaces (24).

Inventors

• Akihiro Unno
• Shigeki Hayashi

Assignees

• THK CO., LTD.

Dates

Publication Date

20260513

Application Date

20240528

Priority Date

20230609

Claims (5)

1. Linear motor module comprising: a rail body guiding a movable body; a plurality of coil units arranged along the rail body; a drive board electrically connected to a plurality of coil units; and a base element supporting the rail body, a plurality of coil units, and the drive board, the base element comprising a seat section for supporting the rail body, a plurality of spaces with a longitudinal spacing along the rail body's extension in a side section of the seat section, and a plurality of projecting sections inserted into the plurality of spaces in the drive board.
2. Linear motor module according to Claim 1 , wherein a motor driver for controlling the coil unit is provided in the preceding section.
3. Linear motor module according to Claim 2 , wherein a base plate section is provided for supporting the seat section in the base element and the motor driver is arranged on a surface of the foreground section facing the base plate section and is in contact with the base plate section via a heat transfer element.
4. Linear motor module according to Claim 2 or 3 , wherein the plurality of spatial sections comprise a first spatial section configured to have a first longitudinal length, and a second spatial section configured to have a second longitudinal length longer than the first longitudinal length, comprising a plurality of projecting sections: a first projecting section inserted into the first spatial section, and a second projecting section inserted into the second space and having a greater longitudinal width than the first projecting section, and the second projecting section is provided with a greater number of motor drivers than the first projecting section and is provided with at least a portion of a control chip for controlling the motor drivers.
5. Linear conveying system, comprising: the linear motor module according to one of the Claims 1 until 3 ; and a movable body comprising a magnet which can be opposite a plurality of coil units and is guided along the rail body, wherein a plurality of linear motor modules can be connected together such that a plurality of rail bodies are connected in series.

Description

TECHNICAL FIELD The present invention relates to a linear motor module and a linear conveyor system. Priority is granted according to the Japanese patent application no. 2023-095688 claimed, which was filed on June 9, 2023 and whose contents are hereby incorporated by reference. STATE OF THE ART Patent document 1 discloses a linear conveying device in which a linear motor is formed by connecting a plurality of stator units. Each of the stator units comprises a stator attached to a unit frame and a sensor board for controlling a current flow to the stator. Citation list patent specification Patent specification 1: Japanese unexamined patent application, first publication no. 2013-176214 SUMMARY OF THE INVENTION Technical problem The linear motor module described above requires a small footprint and low height to miniaturize the module and ensure sufficient surrounding workspace. In the stator units of patent specification 1, as described in 3 The sensor board is shown mounted vertically on the side surface of the unit frame, which can reduce the footprint but increases the height. The present invention was developed taking into account the above circumstances and aims to provide a linear motor module and a linear conveying system with a small footprint and low height. Solution to the problem According to a first aspect of the present invention, a linear motor module comprises a rail body that guides a movable body, a plurality of coil units arranged along the rail body, a drive board electrically connected to the plurality of coil units, and a base element that supports the rail body, the plurality of coil units, and the drive board. The base element includes a seating section for supporting the rail body. A plurality of spaces are formed in a side section of the seating section, spaced apart from one another in the longitudinal direction in which the rail body extends. The drive board includes a plurality of projections that are inserted into these plurality of spaces. According to a second aspect of the present invention, a motor driver for controlling the coil unit in the preceding section is provided in the linear motor module according to the first aspect. According to a third aspect of the present invention, the linear motor module according to the second aspect includes a base plate section for supporting the seat section in the base element. The motor driver is arranged on a surface of the projection section facing the base plate section and is in contact with the base plate section via a heat transfer element. According to a fourth aspect of the present invention, a plurality of spatial sections in the linear motor module according to the second or third aspect comprise a first spatial section configured to have a first longitudinal length and a second spatial section configured to have a second length that is longer than the first longitudinal length. The plurality of such sections comprises a first projecting section inserted into the first spatial section and a second projecting section inserted into the second spatial section that has a greater longitudinal width than the first projecting section. The second projecting section is provided with a greater number of motor drivers than the first projecting section and is provided with at least a portion of a control chip for controlling the motor drivers. According to a fifth aspect of the present invention, a linear conveying system comprises the linear motor module according to one of the first to third aspects and a movable body comprising a magnet which can be positioned opposite the plurality of coil units and is guided along the rail body. A plurality of the linear motor modules can be connected such that a plurality of the rail bodies are connected in series. Advantageous effects of the invention According to one aspect of the present invention, it is possible to reduce the footprint and the height. BRIEF DESCRIPTION OF THE DRAWINGS [ 1 ] Overall view of a linear conveyor system according to one embodiment.[ 2 ] Perspective view of a moving body and a linear motor module according to the embodiment.[ 3 ] View of the moving body and the linear motor module according to the embodiment in the X-axis direction.[ 4 ] Perspective view of the linear motor module according to the embodiment.[ 5 ] Perspective view of a base element and a drive board according to the embodiment.[ 6 A top view of the base element and the drive board, which is in 5 shown.[ 7 ] A perspective view showing an assembly state of the base element and the drive board according to the embodiment. DESCRIPTION OF THE EXECUTION FORM In the following, an embodiment of the present invention is described with reference to the drawings. 1 is an overall view of a linear conveying system 1 according to the embodiment. As in 1 As shown, the linear conveyor system 1 comprises a moving body 2 and a linear motor module 3. The moving body 2 is also referred to as the moving unit. Furthermore,