I-type linear motor

Abstract

The I-type linear motor comprises a stator and a rotor, the rotor comprises a coil holder and an I-type coil assembly, the I-type coil assembly comprises a left coil, a right coil and a cooling system arranged between the left coil and the right coil, the cooling system comprises a plurality of heat dissipation pipes, a water inlet pipeline and a water outlet pipeline are arranged in the coil holder, and the water inlet pipeline is communicated with the water outlet pipeline. And two ends of the radiating pipe are respectively communicated with a water inlet pipeline and a water outlet pipeline. According to the invention, heat dissipation is uniform and fast, the stability of motor operation can be effectively improved, and the stability of positioning precision and response speed during equipment operation is further ensured.

Description

Technical Field

[0001] The present invention relates to the field of linear motors, and in particular to an I-type linear motor. Background Art

[0002] The linear motors currently available on the market are either air-cooled or coolant-cooled. Direct air cooling of the motor has a slow cooling speed and cannot quickly reduce the motor temperature. Although ventilation or coolant cooling on the motor's wire rack can reduce the motor temperature, due to the small ventilation area of ​​the existing structure, the motor can only reduce the temperature in a small area locally, which does not achieve a substantial effect. At the same time, when ventilation or coolant cooling is used, the motor is not cooled evenly, and a large temperature difference between high and low temperatures is likely to occur, resulting in defective heat dissipation.

[0003] In some special occasions, the motor needs to have low temperature and small temperature fluctuation during long-term use. To meet these requirements, the motor output is increased and the motor is used under low working conditions to balance the motor temperature rise. Increasing the motor output and using the motor under low power consumption will increase the size and weight of the motor, which is not conducive to the overall structural design and motor layout. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide an I-type linear motor to improve the heat dissipation effect.

[0005] In order to solve the above technical problems, an embodiment of the present invention proposes a type I linear motor, including a stator and a mover, the mover includes a wire rack and an I-type coil assembly, the I-type coil assembly includes a left coil, a right coil and a cooling system arranged between the left coil and the right coil, the cooling system includes a plurality of heat dissipation pipes, a water inlet pipe and a water outlet pipe are arranged in the wire rack, and the two ends of the heat dissipation pipe are respectively connected to the water inlet pipe and the water outlet pipe.

[0006] Furthermore, the heat dissipation pipes are laid side by side between the left coil and the right coil.

[0007] Furthermore, the water inlet pipeline and the water outlet pipeline are arranged in the same end of the wire rack.

[0008] Furthermore, the plurality of heat dissipation pipes do not cross each other, the water inlet ends of the heat dissipation pipes are adjacently arranged in the water inlet pipeline, and the water outlet ends of the heat dissipation pipes are adjacently arranged in the water outlet pipeline.

[0009] Furthermore, the water inlet end pipe openings of the heat dissipation pipes are arranged at equal distances, and the water outlet end pipe openings of the heat dissipation pipes are arranged at equal distances.

[0010] Furthermore, the heat dissipation pipes are arranged at equal distances.

[0011] Furthermore, the heat dissipation pipes are all laid flat in a U shape.

[0012] Furthermore, a water inlet and a water outlet are provided at the end of the wire rack, and the water inlet and the water outlet are connected to the water inlet pipeline and the water outlet pipeline respectively.

[0013] Furthermore, the cooling system also includes heat dissipation glue, which is coated on the outside of the heat dissipation pipe and is in contact with the left coil and the right coil.

[0014] The beneficial effects of the present invention are as follows: the heat dissipation of the present invention is uniform and fast, and the stability of the motor operation can be effectively improved, thereby ensuring the stability of the positioning accuracy and response speed during the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of a type I linear motor according to an embodiment of the present invention.

[0016] Figure 2 It is a three-dimensional structural diagram of a stator according to an embodiment of the present invention.

[0017] Figure 3 1 is a diagram showing the internal structure of a stator according to an embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of a cooling system according to an embodiment of the present invention at one angle.

[0019] Figure 5 It is a three-dimensional diagram of the cooling system of the embodiment of the present invention from another angle.

[0020] Description of Figure Numbers A mover 10 , a bobbin 11 , an I-type coil assembly 12 , a left coil 13 , a right coil 14 , a heat dissipation pipe 15 , a water inlet pipeline 16 , a water outlet pipeline 17 , a water inlet 18 , a water outlet 19 , and a stator 20 . DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention is further described in detail below in conjunction with the drawings and specific embodiments.

[0022] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0024] Please refer to Figure 1 to Figure 5 , the I-type linear motor of the embodiment of the present invention includes a stator and a mover.

[0025] The mover includes a bobbin and an I-type coil assembly. The I-type coil assembly includes a cooling system and a left coil and a right coil that are symmetrically arranged on the left and right sides. The cooling system is arranged between the left coil and the right coil, and the cooling system includes a plurality of heat dissipation pipes. The heat dissipation pipes are wrapped by the left coil and the right coil, and can fully contact with the coils, so that the heat dissipation contact surface is large and the heat dissipation efficiency is high.

[0026] The wire rack is provided with a water inlet pipe and a water outlet pipe, and the two ends of the heat dissipation pipe are connected to the water inlet pipe and the water outlet pipe respectively. The present invention arranges the water inlet ends of the heat dissipation pipes adjacent to each other, and the water outlet ends of the heat dissipation pipes adjacent to each other, which can quickly and evenly reduce the operating temperature of the motor, ensure that the temperature of the motor is stable and uniform, and at the same time increase the thrust density of the motor and improve the use efficiency of the motor.

[0027] As an implementation manner, the heat dissipation tubes are laid side by side between the left coil and the right coil. Preferably, the outermost heat dissipation tubes are distributed along the edges of the left coil and the right coil.

[0028] As an implementation mode, the water inlet pipeline and the water outlet pipeline are arranged in the same end of the wire rack, which is more convenient for the layout of the motor.

[0029] As an implementation mode, the plurality of heat dissipation pipes do not cross each other, the water inlet ends of the heat dissipation pipes (i.e., the end where water enters the heat dissipation pipes and the water outlet ends) are arranged adjacently in the water inlet pipeline, and the water outlet ends of the heat dissipation pipes (i.e., the end where water exits the heat dissipation pipes) are arranged adjacently in the water outlet pipeline.

[0030] The heat dissipation pipes of the present invention are arranged adjacent to each other, with high heat dissipation efficiency and uniform heat dissipation, and no undesirable phenomena such as low water inlet or air inlet temperature and high water outlet or air outlet temperature will occur.

[0031] As an implementation mode, the water inlet ends of the heat dissipation pipes are arranged at equal distances from each other, and the water outlet ends of the heat dissipation pipes are arranged at equal distances from each other. Preferably, the water inlet pipe and the water outlet pipe are arranged symmetrically, and the water inlet ends and the water outlet ends of the heat dissipation pipes are arranged symmetrically in reverse order, and are respectively arranged in the water inlet pipe and the water outlet pipe.

[0032] As an implementation method, the heat dissipation pipes are arranged at equal distances from each other, so that the overall heat dissipation of the motor is more uniform.

[0033] As an implementation method, the heat dissipation pipes are all laid flat in a U-shape, and the U-shape can improve the heat dissipation effect.

[0034] As an implementation method, a water inlet and a water outlet are provided at the end of the wire rack, and the water inlet and the water outlet are connected to the water inlet pipeline and the water outlet pipeline respectively. The water inlet and the water outlet are arranged on the same side, which is more conducive to the arrangement of the motor and the connection of the power supply end and the coolant.

[0035] The cooling system also includes heat dissipation glue, which is filled outside the heat dissipation pipe so that the heat dissipation glue covers the outside of the heat dissipation pipe and contacts the left coil and the right coil for heat conduction. The heat dissipation glue is insulated. Usually, there is also heat dissipation glue on the surface of the left coil and the right coil.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A type I linear motor, comprising a stator and a mover, characterized in that: The mover includes a wire rack and an I-type coil assembly. The I-type coil assembly includes a left coil, a right coil and a cooling system arranged between the left coil and the right coil. The cooling system includes a plurality of heat dissipation pipes. A water inlet pipeline and a water outlet pipeline are arranged in the wire rack. Both ends of the heat dissipation pipe are respectively connected to the water inlet pipeline and the water outlet pipeline.

2. The I-type linear motor according to claim 1, characterized in that: The heat dissipation pipes are laid side by side between the left coil and the right coil.

3. The I-type linear motor according to claim 2, characterized in that: The water inlet pipeline and the water outlet pipeline are arranged in the same end of the wire rack.

4. The I-type linear motor according to claim 3, characterized in that: The plurality of heat dissipation pipes do not cross each other, the water inlet end openings of the heat dissipation pipes are arranged adjacent to each other in the water inlet pipeline, and the water outlet end openings of the heat dissipation pipes are arranged adjacent to each other in the water outlet pipeline.

5. The I-type linear motor according to claim 4, characterized in that: The water inlet end pipe openings of the heat dissipation pipes are arranged at equal distances, and the water outlet end pipe openings of the heat dissipation pipes are arranged at equal distances.

6. The I-type linear motor according to claim 5, characterized in that: The heat dissipation pipes are arranged at equal distances from each other.

7. The I-type linear motor according to claim 2, characterized in that: The heat dissipation pipes are all laid flat in a U shape.

8. The I-type linear motor according to claim 1, characterized in that: A water inlet and a water outlet are provided at the end of the wire rack, and the water inlet and the water outlet are communicated with a water inlet pipeline and a water outlet pipeline respectively.

9. The I-type linear motor according to claim 1, characterized in that: The cooling system also includes heat dissipation glue, which is coated on the outside of the heat dissipation pipe and is in contact with the left coil and the right coil.

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