Linear motor

Abstract

The utility model relates to the field of motors, and discloses a linear motor, which comprises a stator module comprising a first support assembly and a magnetic steel assembly, the first support assembly forms a mover moving groove, and the magnetic steel assembly is connected to the first support assembly and is arranged corresponding to the mover moving groove; the mover module is matched with the mover moving groove and can move in the mover moving groove relative to the first support assembly, and the mover module comprises a second support assembly provided with a coil mounting position and a coil assembly connected to the support assembly through the coil mounting position; a first air guide channel of which one end is communicated with the outside and the other end is communicated with the mover moving groove is formed in the first bracket assembly; a second air guide channel with one end communicated with the outside and the other end opposite to the coil installation position is formed in the second support assembly. The rotor module and the stator module are respectively provided with the air guide channels, so that the heat dissipation effect of the linear motor is improved, and the high-density thrust performance of the linear motor and the stable operation of the linear motor under long-time high acceleration are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric machines, in particular to a linear motor. BACKGROUND

[0002] A linear motor is derived from a rotary motor by cutting the rotary motor along the axial direction and expanding it in the circumferential direction. The linear motor directly drives a connected device module to move linearly without any transmission device.

[0003] The output thrust of the linear motor is closely related to the winding current of the motor. When the motor needs to output a large thrust for a short time, the magnetic load and the electric load of the motor must be increased. However, this inevitably leads to a great increase in the winding current density of the motor, and the temperature of the winding will rise sharply. The heat hysteresis increases the resistance of the coil itself, and further increases the heat generation of the coil.

[0004] Therefore, after a long time of high acceleration operation, the coil potting glue of the linear motor will sinter and fall off, and the coil will be exposed. When a collision occurs, the coil will also short circuit and cause a fire. In addition, high temperature will cause the demagnetization of the magnetic steel, resulting in a decrease in the high acceleration performance of the linear motor. SUMMARY

[0005] The embodiment of the present application provides a linear motor, which aims to design a cooling structure suitable for the linear motor, improve the heat dissipation effect of the linear motor structure, and maintain the operating temperature of the linear motor within a certain range, so as to guarantee the high-density thrust performance of the linear motor and the stable operation under long-time high acceleration.

[0006] In a first aspect, the embodiment of the present application provides a linear motor, which comprises:

[0007] A stator module comprising a first support assembly and a magnetic steel assembly, the first support assembly forming a mover movable slot, and the magnetic steel assembly being connected to the first support assembly and corresponding to the mover movable slot;

[0008] A mover module, the mover module being adapted to the mover movable slot and being movable in the mover movable slot relative to the first support assembly, the mover module comprising a second support assembly provided with a coil mounting position and a coil assembly connected to the support assembly through the coil mounting position;

[0009] The first support assembly forms a first air guide channel, one end of the first air guide channel being in communication with the outside, and the other end of the first air guide channel being in communication with the mover movable slot.

[0010] The second support assembly forms a second air guide channel, one end of the second air guide channel being in communication with the outside, and the other end of the second air guide channel being opposite to the coil mounting position.

[0011] In some embodiments, the first bracket assembly comprises:

[0012] a first magnetic yoke member;

[0013] a second magnetic yoke member, the first magnetic yoke member and the second magnetic yoke member are spaced apart, and the magnetic steel assembly is arranged separately between the first magnetic yoke member and the second magnetic yoke member;

[0014] a connecting magnetic yoke member connected to the first magnetic yoke member and the second magnetic yoke member, and cooperating with the first magnetic yoke member and the second magnetic yoke member to form a mover moving slot, wherein the connecting magnetic yoke member forms a first air guide channel.

[0015] In some embodiments, the first magnetic yoke member and the second magnetic yoke member are spaced apart in a first direction, the connecting magnetic yoke member comprises a first magnetic yoke support portion and a second magnetic yoke support portion spaced apart in a second direction perpendicular to the first direction, and a third magnetic yoke support portion connected to the first magnetic yoke support portion and the second magnetic yoke support portion;

[0016] wherein the first air guide channel comprises a first stator air guide channel and a second stator air guide channel, the first magnetic yoke support portion forms the first stator air guide channel, and the second magnetic yoke support portion forms the second stator air guide channel;

[0017] and one end of the first stator air guide channel is in communication with the outside, the other end of the first stator air guide channel is in communication with the mover moving slot, one end of the second stator air guide channel is in communication with the outside, and the other end of the second stator air guide channel is in communication with the mover moving slot.

[0018] In some embodiments, the first stator air guide channel comprises a first main flow channel and a first air conveying flow channel, the first main flow channel is arranged in extension along a third direction perpendicular to the first direction and the second direction, and forms a first flow channel air inlet and a first flow channel air outlet on opposite sides in the third direction, and the first air conveying flow channel is arranged laterally to the first main flow channel and is in communication with the first main flow channel and the mover moving slot;

[0019] the second stator air guide channel comprises a second main flow channel and a second air conveying flow channel, the second main flow channel is arranged in extension along the third direction, and forms a second flow channel air inlet and a second flow channel air outlet on opposite sides in the third direction, and the second air conveying flow channel is arranged laterally to the second main flow channel and is in communication with the second main flow channel and the mover moving slot.

[0020] In some embodiments, the width of the first main flow channel in the first direction is greater than the width of the first air conveying flow channel in the first direction;

[0021] and / or,

[0022] the width of the second main flow channel in the first direction is greater than the width of the second air conveying flow channel in the first direction.

[0023] In some embodiments, the first magnetic yoke support portion is obliquely arranged near one side of the second magnetic yoke support portion; and / or,

[0024] The second magnetic yoke support portion is obliquely arranged near one side of the first magnetic yoke support portion.

[0025] In some embodiments, the second bracket assembly comprises a base plate forming a coil mounting position, and a first air guide block and a second air guide block connected to opposite sides of the base plate and arranged opposite to the coil mounting position;

[0026] The second air guide channel comprises a first mover air guide channel and a second mover air guide channel, the first mover air guide channel comprises a first channel segment arranged on the base plate and a second channel segment arranged on the first air guide block, and the second mover air guide channel comprises a third channel segment arranged on the base plate and a fourth channel segment arranged on the second air guide block.

[0027] The air inlet end of the first channel segment is in communication with the outside, the air outlet end of the first channel segment is in communication with the air inlet end of the second channel segment, the air outlet end of the second channel segment is opposite to the coil mounting position, the air inlet end of the third channel segment is in communication with the outside, the air outlet end of the third channel segment is in communication with the air inlet end of the fourth channel segment, and the air outlet end of the fourth channel segment is opposite to the coil mounting position.

[0028] In some embodiments, the base plate comprises a first base plate portion and a second base plate portion connected to the first base plate portion, the first base plate portion is located in the mover movable slot when the mover module is adapted to the mover movable slot, and the second base plate portion is located outside the mover movable slot.

[0029] The second bracket assembly further comprises a first air pipe joint and a second air pipe joint connected to the second base plate portion.

[0030] The air inlet end of the first air pipe joint is in communication with the outside, the air outlet end of the first air pipe joint is in communication with the air inlet end of the first channel segment, the air inlet end of the second air pipe joint is in communication with the outside, and the air outlet end of the second air pipe joint is in communication with the air inlet end of the third channel segment.

[0031] In some embodiments, the second channel segment comprises a third main flow channel and a third air supply flow channel, the third main flow channel is arranged in the third direction and is in communication with the air outlet end of the first channel segment, and the third air supply flow channel is arranged laterally to the third main flow channel and is in communication with the third main flow channel and the coil mounting position.

[0032] and / or,

[0033] The fourth channel segment comprises a fourth main flow channel and a fourth air supply flow channel, the fourth main flow channel is arranged in the third direction and is in communication with the air outlet end of the third channel segment, and the fourth air supply flow channel is arranged laterally to the fourth main flow channel and is in communication with the fourth main flow channel and the coil mounting position.

[0034] In some embodiments, the substrate forms a mounting groove with an opening at the coil mounting position, and at least part of the coil assembly is accommodated in the mounting groove;

[0035] In some embodiments, the substrate forms a first guide slope inclined to the opening at a side close to the first air guide block, and / or forms a second guide slope inclined to the opening at a side close to the second air guide block.

[0036] In summary, the embodiments of the present application provide a linear motor, which includes: a stator module including a first support assembly and a magnetic steel assembly, the first support assembly forming a mover moving groove, and the magnetic steel assembly being connected to the first support assembly and corresponding to the mover moving groove; a mover module, which is adapted to the mover moving groove and can move in the mover moving groove relative to the first support assembly, and includes a second support assembly provided with a coil mounting position and a coil assembly connected to the support assembly through the coil mounting position; wherein the first support assembly forms a first air guide channel, one end of the first air guide channel is in communication with the outside, and the other end of the first air guide channel is in communication with the mover moving groove; and the second support assembly forms a second air guide channel, one end of the second air guide channel is in communication with the outside, and the other end of the second air guide channel is opposite to the coil mounting position. The linear motor provided by the embodiments of the present application sets air guide channels for assisting heat dissipation of the linear motor on the mover module and the stator module respectively, improves the heat dissipation effect of the linear motor structure, maintains the operating temperature of the linear motor within a certain range, and guarantees the high-density thrust performance of the linear motor and stable operation under long-time high acceleration. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, 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 labor.

[0038] Figure 1 Structure schematic diagram of an embodiment of the linear motor provided by the present application;

[0039] Figure 2 Structure schematic diagram of the stator module in the linear motor provided by an embodiment of the present application;

[0040] Figure 3 Structure schematic diagram of the stator module in the linear motor provided by an embodiment of the present application;

[0041] Figure 4 Structure schematic diagram of the first magnetic yoke support part and the second magnetic yoke support part in the linear motor provided by an embodiment of the present application;

[0042] Figure 5 Fig. 2 is a structural schematic diagram of a second support assembly and a coil assembly in a linear motor according to an embodiment of the present application;

[0043] Figure 6 Fig. 3 is a schematic diagram of a second air guide channel in a linear motor according to an embodiment of the present application;

[0044] Figure 7 Fig. 4 is a structural schematic diagram of a first air guide block and a second air guide block in a linear motor according to an embodiment of the present application;

[0045] Figure 7 Fig. 4(a) is a structural schematic diagram of a first air guide block in a linear motor according to an embodiment of the present application;

[0046] Figure 7 Fig. 4(b) is a structural schematic diagram of a second air guide block in a linear motor according to an embodiment of the present application.

[0047] Reference signs:

[0048] 100, linear motor; 10, stator module; 11, first support assembly; 111, first magnetic yoke member; 112, second magnetic yoke member; 113, connecting magnetic yoke member; 114, first magnetic yoke support portion; 115, second magnetic yoke support portion; 116, third magnetic yoke support portion; 117, first inclined surface; 118, second inclined surface; 119, notch; 12, magnetic steel assembly; 121, first magnetic steel group; 122, second magnetic steel group; 13, first air guide channel; 131, first stator air guide channel; 1311, first main flow passage; 1312, first air flow passage; 1313, first flow passage air inlet; 1314, first flow passage air outlet; 132, second stator air guide channel; 1321, second main flow passage; 1322, second air flow passage; 1323, second flow passage air inlet; 1324, second flow passage air outlet; 14, mover moving slot; 20, mover module; 21, second support assembly; 211, first air guide block; 212, second air guide block; 213, base plate; 214, first base plate portion; 215, second base plate portion; 216, first guide inclined surface; 217, second guide inclined surface; 218, first air pipe joint member; 219, second air pipe joint member; 22, coil assembly; 23, second air guide channel; 231, first mover air guide channel; 232, second mover air guide channel; 233, first channel section; 234, second channel section; 2341, third main flow passage; 2342, third air flow passage; 235, third channel section; 236, fourth channel section; 2361, fourth main flow passage; 2362, fourth air flow passage; 24, coil mounting position; 25, mounting slot; 26, opening; D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0049] The technical solutions of the embodiments of the present application will be described below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. The flowchart shown in the drawings is only an example and does not necessarily include all the contents and operations / steps, nor does it necessarily execute in the order described. For example, some operations / steps can be further divided, combined or partially combined, so that the actual execution order may be changed according to the actual situation.

[0050] A linear motor is transformed from a rotary motor, which is cut along the axial direction and expanded in the circumferential direction. The linear motor directly drives the connected device module to move linearly without any transmission device.

[0051] The output thrust of the linear motor is closely related to the motor winding current. When the motor needs to output large thrust for a short time, the magnetic load and the electric load of the motor must be increased. However, this will inevitably lead to a significant increase in the winding current density of the motor, and the temperature of the winding will rise sharply. The heat hysteresis increases the resistance of the coil itself, and further increases the heat generation of the coil.

[0052] Therefore, after long-time high-acceleration operation, the coil encapsulation glue of the linear motor will sinter and fall off, and the coil will be exposed outside. When a collision occurs, the coil will also short circuit and cause a fire. In addition, high temperature will cause the demagnetization of the magnetic steel, resulting in a decrease in the high-acceleration performance of the linear motor. Based on this, the present application provides a linear motor.

[0053] As shown in Figure 1 The present application provides a linear motor 100, which comprises a stator module 10 and a mover module 20 matched with the stator module 10. The mover module 20 can move in a predetermined direction (corresponding to the second direction D2 below) under the drive of the stator module 10. The stator module 10 is provided with a first air guide channel 13, and the mover module 20 is provided with a second air guide channel 23. The first air guide channel 13 and the second air guide channel 23 are used to independently blow and cool the linear motor 100. The structure and function of each part of the linear motor 100 will be described in detail below.

[0054] As shown in Figures 1 to 3As shown, specifically, the stator module 10 comprises a first bracket assembly 11 and a magnetic steel assembly 12, the first bracket assembly 11 forms a mover movable slot 14 for adapting with the mover module 20, the mover module 20 can move in the mover movable slot 14 relative to the first bracket assembly 11, and the magnetic steel assembly 12 is connected to the first bracket assembly 11 and is arranged corresponding to the mover movable slot 14, and is relatively fixed with the first bracket assembly 11.

[0055] Specifically, the mover module 20 comprises a second bracket assembly 21 and a coil assembly 22, wherein the second bracket assembly 21 is provided with a coil mounting position 24, and the coil assembly 22 is connected and fixed to the bracket assembly through the coil mounting position 24;

[0056] It should be noted that the magnetic steel assembly 12 is used to provide a target magnetic field for the coil assembly 22, so that the coil assembly 22 after being electrified is driven to move in a preset direction (corresponding to the second direction D2 below) under the action of the target magnetic field, and drives the mover module 20 to move relative to the stator module 10 through the coil assembly 22, and the movement direction and speed of the mover module 20 are associated with the current input to the coil assembly 22.

[0057] Wherein, the first air guide channel 13 is formed in the first bracket assembly 11, and one end of the first air guide channel 13 is in communication with the outside, and the other end of the first air guide channel 13 is in communication with the mover movable slot 14; and the second air guide channel 23 is formed in the second bracket assembly 21, and one end of the second air guide channel 23 is in communication with the outside, and the other end of the second air guide channel 23 is opposite to the coil mounting position 24.

[0058] Based on the setting of the first air guide channel 13, the air outside can enter the mover movable slot 14 through the first air guide channel, so that the mover movable slot 14, the mover module 20 in the mover movable slot 14 and the magnetic steel assembly 12 arranged corresponding to the mover movable slot 14 are in heat exchange with the outside, so as to rapidly cool the inside of the linear motor 100. On the other hand, based on the setting of the second air guide channel 23, the air outside can enter the coil mounting position 24 through the second air guide channel, so that the mover movable slot 14 and the coil assembly 22 arranged in the coil mounting position 24 are in heat exchange with the outside, so as to rapidly cool the inside of the linear motor 100.

[0059] Further, the gas can be introduced into the mover active slot 14 through the first gas guide channel, and / or the gas, especially low-temperature gas, can be introduced into the coil mounting position 24 through the second gas guide channel, so that the introduced gas blows against the structures inside the linear motor 100, especially the coil assembly 22 and the magnetic steel assembly 12 which generate a large amount of heat during operation, thereby greatly improving the heat dissipation effect of the structures of the linear motor 100, and maintaining the operating temperature of the linear motor 100 within a certain range, so as to ensure the high-density thrust performance of the linear motor 100 and stable operation under long-time high acceleration.

[0060] In some embodiments, the magnetic steel assembly 12 is connected and fixed to the first support assembly 11 by gluing. In some embodiments, the coil assembly 22 is connected and fixed to the second support assembly 21 by gluing, so as to ensure that the magnetic steel assembly 12 is relatively fixed to the first support assembly 11, and the coil assembly 22 is relatively fixed to the second support assembly 21, so that the mover module 20 has a better driving effect.

[0061] In some embodiments, the first support assembly 11 comprises:

[0062] a first magnetic yoke member 111;

[0063] a second magnetic yoke member 112, the first magnetic yoke member 111 and the second magnetic yoke member 112 are arranged in a spaced manner, and the magnetic steel assembly 12 is arranged separately between the first magnetic yoke member 111 and the second magnetic yoke member 112;

[0064] a connecting magnetic yoke member 113 connected to the first magnetic yoke member 111 and the second magnetic yoke member 112, and cooperating with the first magnetic yoke member 111 and the second magnetic yoke member 112 to form the mover active slot 14, wherein the connecting magnetic yoke member 113 forms the first gas guide channel 13.

[0065] Specifically, the first magnetic yoke member 111 and the second magnetic yoke member 112 are arranged in a spaced manner along a second direction D2 perpendicular to the first direction D1, and the mover active slot 14 is located between the first magnetic yoke member 111 and the second magnetic yoke member 112, wherein the magnetic steel assembly 12 comprises a first magnetic steel group 121 and a second magnetic steel group 122, the first magnetic steel group 121 is connected to one side of the first magnetic yoke member 111 close to the second magnetic yoke member 112, and the second magnetic steel group 122 is connected to one side of the second magnetic yoke member 112 close to the first magnetic yoke member 111.

[0066] In some embodiments, the first magnetic steel group 121 comprises a plurality of magnetic steel units connected and fixed to the first magnetic yoke member 111, and the second magnetic steel group 122 comprises a plurality of magnetic steel units different from the first magnetic steel group 121 and connected and fixed to the second magnetic yoke member 112. For example, the plurality of magnetic steel units are arranged in a Halbach array manner on the inner wall of the mover active slot 14.

[0067] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0068] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0069] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0070] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0071] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0072] In some embodiments, the first magnetic yoke member 111 and the second magnetic yoke member 112 are spaced apart in a first direction D1, the connecting magnetic yoke member 113 includes a first magnetic yoke support portion 114 and a second magnetic yoke support portion 115 spaced apart in a second direction D2 perpendicular to the first direction D1, and a third magnetic yoke support portion 116 connected to the first magnetic yoke support portion 114 and the second magnetic yoke support portion 115;

[0073] In some embodiments, the first stator gas guide passage 131 comprises a first main flow channel 1311 and a first gas supply flow channel 1312, the first main flow channel 1311 extends along a third direction D3 perpendicular to the first direction D1 and the second direction D2, and forms a first flow channel gas inlet 1313 and a first flow channel gas outlet 1314 on opposite sides in the third direction D3, the first gas supply flow channel 1312 is arranged laterally to the first main flow channel 1311 and communicates the first main flow channel 1311 with the mover active slot 14;

[0074] The second stator gas guide passage 132 comprises a second main flow channel 1321 and a second gas supply flow channel 1322, the second main flow channel 1321 extends along the third direction D3, and forms a second flow channel gas inlet 1323 and a second flow channel gas outlet 1324 on opposite sides in the third direction D3, the second gas supply flow channel 1322 is arranged laterally to the second main flow channel 1321 and communicates the second main flow channel 1321 with the mover active slot 14.

[0075] Specifically, the first flow channel gas inlet 1313 is configured to supply a first preset gas to the first main flow channel 1311, part of the first preset gas will be discharged from the second flow channel gas inlet 1323, and another part of the first preset gas will flow into the mover active slot 14 through the first gas supply flow channel 1312, so that the first preset gas exchanges heat with the internal structure of the linear motor 100 to achieve the heat dissipation function.

[0076] Similarly, the second flow channel gas inlet 1323 is configured to supply a second preset gas to the second main flow channel 1321, part of the second preset gas will be discharged from the second flow channel gas inlet 1323, and another part of the second preset gas will flow into the mover active slot 14 through the second gas supply flow channel 1322, so that the second preset gas exchanges heat with the internal structure of the linear motor 100 to achieve the heat dissipation function.

[0077] For example, the first preset gas and / or the second preset gas is low-temperature air.

[0078] In some embodiments, the side opening of the first gas supply flow channel 1312 communicating with the mover active slot 14 is a strip-shaped opening extending in the third direction D3, and the side opening of the second gas supply flow channel 1322 communicating with the mover active slot 14 is a strip-shaped opening extending in the third direction D3, so that the first preset gas in the first main flow channel 1311 and the second preset gas in the second main flow channel 1321 can be uniformly distributed into the mover active slot 14 in the third direction D3.

[0079] In some embodiments, the width of the first main flow channel 1311 in the first direction D1 is greater than the width of the first gas supply flow channel 1312 in the first direction D1.

[0080] And / or,

[0081] The width of the second main flow channel 1321 in the first direction D1 is greater than the width of the second gas flow channel 1322 in the first direction D1.

[0082] It should be understood that, according to the principle of Bernoulli equation, after the first preset gas flows into the first gas flow channel 1312 from the first gas guide channel 13, the corresponding gas flow rate increases due to the narrowing of the flow channel interface. The faster the flow rate increases, the greater the amount of gas blown into the mover active slot 14 per unit time, so that the heat emitted in the mover active slot 14 can be timely taken away.

[0083] Similarly, after the second preset gas flows into the second gas flow channel 1322 from the second gas guide channel 23, the corresponding gas flow rate increases due to the narrowing of the flow channel interface. The faster the flow rate increases, the greater the amount of gas blown into the mover active slot 14 per unit time, so that the heat emitted in the mover active slot 14 can be timely taken away.

[0084] Further, the first preset gas and / or the second preset gas flowing into the mover active slot 14 can flow out through the slot opening 119 of the mover active slot 14 after heat exchange, effectively reducing the temperature in the mover active slot 14.

[0085] In some embodiments, the first magnetic yoke support portion 114 is inclined on the side close to the second magnetic yoke support portion 115; and / or,

[0086] The second magnetic yoke support portion 115 is inclined on the side close to the first magnetic yoke support portion 114.

[0087] Specifically, the first magnetic yoke support portion 114 forms a first inclined surface 117 on the side close to the second magnetic yoke support portion 115, and the second magnetic yoke support portion 115 also forms a second inclined surface 118 on the side close to the first magnetic yoke support portion 114. The first inclined surface 117 and the second inclined surface 118 can guide the gas flowing out of the first gas flow channel 1312 and the second gas flow channel 1322.

[0088] As shown in FIG. 1, Figure 5 As shown in FIG. 1, Figure 6 In some embodiments, the second bracket assembly 21 includes a substrate 213 forming a coil mounting position 24, and a first gas guide block 211 and a second gas guide block 212 connected to opposite sides of the substrate 213 and arranged opposite to the coil mounting position 24;

[0089] The second air guide channel 23 includes a first mover air guide channel 231 and a second mover air guide channel 232. The first mover air guide channel 231 includes a first channel segment 233 disposed on the substrate 213 and a second channel segment 234 disposed on the first air guide block 211. The second mover air guide channel 232 includes a third channel segment 235 disposed on the substrate 213 and a fourth channel segment 236 disposed on the second air guide block 212.

[0090] Furthermore, the air inlet of the first channel section 233 is connected to the outside, the air outlet of the first channel section 233 is connected to the air inlet of the second channel section 234, the air outlet of the second channel section 234 is opposite to the coil mounting position 24, the air inlet of the third channel section 235 is connected to the outside, the air outlet of the third channel section 235 is connected to the air inlet of the fourth channel section, and the air outlet of the fourth channel section 236 is opposite to the coil mounting position 24.

[0091] Specifically, the gas flow direction in the first gas guide channel 13 is described as follows: external gas first enters the first channel section 233, then enters the second channel section 234, and then flows to the coil mounting position 24. The gas flow direction in the second gas guide channel 23 is described as follows: external gas first enters the third channel section 235, then enters the fourth channel section 236, and then flows to the coil mounting position 24.

[0092] To further explain, based on the fact that the mover module is adapted to the mover movable slot 14, the gas flowing to the coil mounting position 24 can flow out through the slot opening 119 of the mover movable slot 14 after heat exchange, effectively reducing the temperature inside the mover movable slot 14.

[0093] like Figure 5 As shown, in some embodiments, the substrate 213 includes a first substrate portion 214 and a second substrate portion 215 connected to the first substrate portion 214. When the moving part module 20 is adapted to the moving part movable slot 14, the first substrate portion 214 is located inside the moving part movable slot 14, and the second substrate portion 215 is located outside the moving part movable slot 14.

[0094] The second support assembly 21 further includes a first air pipe connector 218 and a second air pipe connector 219 connected to the second base plate portion 215.

[0095] Furthermore, the air inlet of the first tracheal connector 218 is connected to the outside, the air outlet of the first tracheal connector 218 is connected to the air inlet of the first channel section 233, the air inlet of the second tracheal connector 219 is connected to the outside, and the air outlet of the second tracheal connector 219 is connected to the air inlet of the third channel section 235.

[0096] Specifically, the coil mounting position 24 is disposed on the first substrate portion 214, that is, when the mover module 20 is adapted to the mover movable slot 14, the coil assembly 22 is housed in the mover movable slot 14. It should be understood that disposing the first air pipe connector 218 and the second air pipe connector 219 on the second substrate portion 215 located outside the mover movable slot 14 can prevent the first air pipe connector 218 and the second air pipe connector 219 from occupying space in the mover movable slot 14, and does not affect the adaptation of the first substrate portion 214 and the mover movable slot 14, and will not interfere with the interaction between the magnet assembly 12 and the coil assembly 22. In addition, in some embodiments, the first air pipe connector 218 and the second air pipe connector 219 are disposed on one side of the first direction D1. Disposing the first air pipe connector 218 and the second air pipe connector 219 on the second substrate portion 215 is more flexible and is not limited by the stator module.

[0097] Specifically, external gas can flow to the coil mounting position 24 along the airflow direction of the first air pipe connector 218, the second substrate 215, and the first air guide block 211, or it can flow to the coil mounting position 24 along the airflow direction of the second air pipe connector 219, the second substrate 215, and the second air guide block 212.

[0098] like Figure 7 As shown in (a), in some embodiments, the second channel segment 234 includes a third main channel 2341 and a third gas delivery channel 2342. The third main channel 2341 extends along the third direction D3 and is connected to the outlet end of the first channel segment 233. The third gas delivery channel 2342 is located laterally to the third main channel 2341 and connects the third main channel 2341 with the coil mounting position 24.

[0099] And / or,

[0100] like Figure 7 As shown in (b), the fourth channel segment 236 includes a fourth main channel 2361 and a fourth gas delivery channel 2362. The fourth main channel 2361 extends along the third direction D3 and is connected to the outlet end of the third channel segment 235. The fourth gas delivery channel 2362 is located on the side of the fourth main channel 2361 and connects the fourth main channel 2361 with the coil mounting position 24.

[0101] Specifically, the air inlet of the third main channel 2341 is configured to introduce a third preset gas into the third main channel 2341. After the third preset gas enters the third main channel 2341, it is discharged to the coil mounting position 24 through the third gas delivery channel 2342, so that the third preset gas exchanges heat with the coil assembly 22 located in the coil mounting position 24 to achieve the heat dissipation function.

[0102] Similarly, the gas inlet of the fourth main flow channel 2361 is configured to introduce the fourth preset gas into the fourth main flow channel 2361, and the fourth preset gas is discharged to the coil mounting position 24 through the fourth gas flow channel 2362 after being introduced into the fourth main flow channel 2361, so that the fourth preset gas exchanges heat with the coil assembly 22 located at the coil mounting position 24, and the heat dissipation function is realized.

[0103] For example, the third preset gas and / or the fourth preset gas is low-temperature air.

[0104] Further, the third preset gas and / or the fourth preset gas flowing into the coil mounting position 24 can flow out through the slot opening 119 of the mover movable slot 14 after exchanging heat with the coil assembly 22, effectively reducing the temperature of the internal structure of the linear motor 100.

[0105] As shown in FIG. 1, in some embodiments, the substrate 213 forms a mounting slot 25 located at the coil mounting position 24 and having an opening 26, and at least part of the coil assembly 22 is accommodated in the mounting slot 25. Figure 5

[0106] Specifically, the distance between the side of the first guide inclined surface 216 close to the opening 26 and the first gas guide block 211 is less than the distance between the side of the first guide inclined surface 216 far from the opening 26 and the first gas guide block 211. The distance between the side of the second guide inclined surface 217 close to the opening 26 and the second gas guide block 212 is less than the distance between the side of the second guide inclined surface 217 far from the opening 26 and the second gas guide block 212.

[0107] It should be understood that the first guide inclined surface 216 and the second guide inclined surface 217 provided in the embodiment are used to guide the gas flowing out of the first gas guide block 211 and the second gas guide block 212, so that the gas flows into the mounting slot 25 through the opening 26, thereby making the introduced gas fully contact with the coil assembly 22 and exchange heat, and improving the heat dissipation effect.

[0108] As shown in FIG. 1, in some embodiments, the substrate 213 forms a mounting slot 25 located at the coil mounting position 24 and having an opening 26, and at least part of the coil assembly 22 is accommodated in the mounting slot 25.

[0109] As shown in FIG. 1, in some embodiments, the substrate 213 forms a mounting slot 25 located at the coil mounting position 24 and having an opening 26, and at least part of the coil assembly 22 is accommodated in the mounting slot 25. Figure 4 ​As shown, further, the first magnetic yoke support portion 114 forms a first inclined surface 117 on the side close to the second magnetic yoke support portion 115, the second magnetic yoke support portion 115 also forms a second inclined surface 118 on the side close to the first magnetic yoke support portion 114, and the distance from the first inclined surface 117 close to the opening 26 to the mover module is less than the distance from the first inclined surface 117 far from the opening 26 to the mover module, and the distance from the second inclined surface 118 close to the opening 26 to the mover module is less than the distance from the second inclined surface 118 far from the opening 26 to the mover module. It should be understood that the first inclined surface 117 and the second inclined surface 118 can guide the gas flowing out of the first gas flow channel 1312 and the second gas flow channel 1322, and more easily blow into the opening 26 of the mounting groove 25.

[0110] In summary, the embodiment of the present application provides a linear motor 100, which comprises: a stator module 10, comprising a first support assembly 11 and a magnetic steel assembly 12, the first support assembly 11 forms a mover movable slot 14, and the magnetic steel assembly 12 is connected to the first support assembly 11 and is arranged corresponding to the mover movable slot 14; a mover module 20, which is adapted to the mover movable slot 14 and can move in the mover movable slot 14 relative to the first support assembly 11, and the mover module 20 comprises a second support assembly 21 provided with a coil mounting position 24 and a coil assembly 22 connected to the support assembly through the coil mounting position 24; wherein the first support assembly 11 forms a first gas guide channel 13, one end of the first gas guide channel 13 is in communication with the outside, and the other end of the first gas guide channel 13 is in communication with the mover movable slot 14; and the second support assembly 21 forms a second gas guide channel 23, one end of the second gas guide channel 23 is in communication with the outside, and the other end of the second gas guide channel 23 is opposite to the coil mounting position 24. The linear motor 100 provided by the embodiment of the present application respectively sets the gas guide channels for assisting the linear motor 100 to dissipate heat on the mover module and the stator module 10, improves the heat dissipation effect of the structure of the linear motor 100, maintains the operating temperature of the linear motor 100 within a certain range, and guarantees the high-density thrust performance of the linear motor 100 and the stable operation under long-time high acceleration.

[0111] The above merely provides specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be encompassed within the protection scope of the present application, and the protection scope of the present application shall be subject to the protection scope of the claims.

[0112] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. Unless specifically defined otherwise in the specification, the terms "mounting", "connected", "connecting" are to be given their broadest interpretation, for example, they can be "fixed connections", "releasable connections", or "integrated connections"; they can be "mechanical connections", "electrical connections"; they can be "direct connections", or "indirect connections" through intermediary media; they can be "internal connections" between elements. The specific meanings of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances. As used in the specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as used herein refers to any combination of associated terms, including all possible combinations, and includes terms that consist of one or more of the associated terms. In this document, the terms "comprise", "comprises" or "comprising" are intended to encompass non-exclusive inclusions, such that processes, methods, articles, or systems that comprise a list of elements are not limited to those elements, but can include other elements not expressly listed, or also include elements inherent in such processes, methods, articles, or systems.

Claims

1. A linear motor, characterized by, The application relates to a motor module, comprising: a stator module, comprising a first bracket assembly forming a mover movable slot and a magnetic steel assembly connected to the first bracket assembly and corresponding to the mover movable slot; a mover module, which is matched with the mover movable slot and can move in the mover movable slot relative to the first bracket assembly, and comprises a second bracket assembly provided with a coil mounting position and a coil assembly connected to the bracket assembly through the coil mounting position; wherein the first bracket assembly is provided with a first air guide channel, one end of the first air guide channel is communicated with the outside, and the other end of the first air guide channel is communicated with the mover movable slot; and the second bracket assembly is provided with a second air guide channel, one end of the second air guide channel is communicated with the outside, and the other end of the first air guide channel is opposite to the coil mounting position.

2. The linear motor of claim 1, wherein The first bracket assembly comprises: a first magnetic yoke member; a second magnetic yoke member, which is spaced apart from the first magnetic yoke member, and the magnetic steel assembly is separately arranged between the first magnetic yoke member and the second magnetic yoke member; a connecting magnetic yoke member, which is connected to the first magnetic yoke member and the second magnetic yoke member and cooperates with the first magnetic yoke member and the second magnetic yoke member to form the mover movable slot, wherein the connecting magnetic yoke member forms the first air guide channel.

3. The linear motor of claim 2, wherein, The first magnetic yoke member and the second magnetic yoke member are spaced apart in a first direction, the connecting magnetic yoke member comprises a first magnetic yoke support part and a second magnetic yoke support part which are spaced apart in a second direction perpendicular to the first direction, and a third magnetic yoke support part connected to the first magnetic yoke support part and the second magnetic yoke support part; wherein the first air guide channel comprises a first stator air guide channel and a second stator air guide channel, the first magnetic yoke support part forms the first stator air guide channel, and the second magnetic yoke support part forms the second stator air guide channel; and one end of the first stator air guide channel is communicated with the outside, the other end of the first stator air guide channel is communicated with the mover movable slot, one end of the second stator air guide channel is communicated with the outside, and the other end of the second stator air guide channel is communicated with the mover movable slot.

4. The linear motor of claim 3, wherein The first stator air guide channel comprises a first main flow channel and a first air conveying flow channel, the first main flow channel is arranged along a third direction perpendicular to the first direction and the second direction, and first flow channel air inlet and first flow channel air outlet are formed on opposite sides of the first main flow channel in the third direction, and the first air conveying flow channel is arranged on the side of the first main flow channel and is communicated with the first main flow channel and the mover movable slot; the second stator air guide channel comprises a second main flow channel and a second air conveying flow channel, the second main flow channel is arranged along the third direction, and second flow channel air inlet and second flow channel air outlet are formed on opposite sides of the second main flow channel in the third direction, and the second air conveying flow channel is arranged on the side of the second main flow channel and is communicated with the second main flow channel and the mover movable slot.

5. The linear motor of claim 4, wherein, The width of the first main flow channel in the first direction is greater than the width of the first air conveying flow channel in the first direction; and / or, The second main flow channel has a width in the first direction that is greater than a width of the second gas flow channel in the first direction.

6. The linear motor of claim 3, wherein, The first magnetic yoke support portion is obliquely arranged near one side of the second magnetic yoke support portion; and / or, The second magnetic yoke support portion is obliquely arranged near one side of the first magnetic yoke support portion.

7. Linear motor according to any of claims 1-6, characterized in that The second support assembly includes a base plate forming the coil mounting position and a first air guide block and a second air guide block connected to opposite sides of the base plate and arranged opposite the coil mounting position; The second gas guide channel includes a first mover gas guide channel and a second mover gas guide channel, the first mover gas guide channel includes a first channel segment arranged on the base plate and a second channel segment arranged on the first air guide block, and the second mover gas guide channel includes a third channel segment arranged on the base plate and a fourth channel segment arranged on the second air guide block. The air inlet end of the first channel segment is in communication with the outside, the air outlet end of the first channel segment is in communication with the air inlet end of the second channel segment, the air outlet end of the second channel segment is opposite the coil mounting position, the air inlet end of the third channel segment is in communication with the outside, the air outlet end of the third channel segment is in communication with the air inlet end of the fourth channel segment, and the air outlet end of the fourth channel segment is opposite the coil mounting position.

8. The linear motor of claim 7, wherein, The base plate includes a first base plate portion and a second base plate portion connected to the first base plate portion, the first base plate portion is located in the mover movable slot when the mover module is adapted to the mover movable slot, and the second base plate portion is located outside the mover movable slot. The second support assembly further includes a first air pipe joint and a second air pipe joint connected to the second base plate portion. The air inlet end of the first air pipe joint is in communication with the outside, the air outlet end of the first air pipe joint is in communication with the air inlet end of the first channel segment, the air inlet end of the second air pipe joint is in communication with the outside, and the air outlet end of the second air pipe joint is in communication with the air inlet end of the third channel segment.

9. The linear motor of claim 7, wherein, The second channel segment includes a third main flow channel and a third gas flow channel, the third main flow channel extends along a third direction and is in communication with the air outlet end of the first channel segment, and the third gas flow channel is arranged on the side of the third main flow channel and is in communication with the third main flow channel and the coil mounting position. The fourth channel segment includes a fourth main flow channel and a fourth gas flow channel, the fourth main flow channel extends along a third direction and is in communication with the air outlet end of the third channel segment, and the fourth gas flow channel is arranged on the side of the fourth main flow channel and is in communication with the fourth main flow channel and the coil mounting position. The base plate forms a mounting groove with an opening in the coil mounting position, and at least part of the coil assembly is accommodated in the mounting groove.

10. The linear motor of claim 7, wherein, The base plate forms a first guide inclined surface inclined to the opening on one side near the first air guide block, and / or the base plate forms a second guide inclined surface inclined to the opening on one side near the second air guide block. ​

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