CN117498643A - Double-sided magnet type linear motor - Google Patents
Double-sided magnet type linear motor Download PDFInfo
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- CN117498643A CN117498643A CN202311806311.2A CN202311806311A CN117498643A CN 117498643 A CN117498643 A CN 117498643A CN 202311806311 A CN202311806311 A CN 202311806311A CN 117498643 A CN117498643 A CN 117498643A
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- liquid cooling
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- liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 186
- 238000001816 cooling Methods 0.000 claims abstract description 177
- 239000000110 cooling liquid Substances 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims description 67
- 238000005192 partition Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 20
- 230000002349 favourable effect Effects 0.000 abstract description 13
- 230000002146 bilateral effect Effects 0.000 abstract description 9
- 239000002826 coolant Substances 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 14
- 230000002829 reductive effect Effects 0.000 description 14
- 238000012546 transfer Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000036961 partial effect Effects 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The application discloses bilateral magnet formula linear electric motor, including stator module, sub-module and liquid cooling subassembly. The stator module includes a first stator and a second stator disposed opposite to each other in a first direction. The rotor module comprises a first rotor and a second rotor, the first rotor and the second rotor are located between the first stator and the second stator along the first direction, the first rotor is arranged opposite to the first stator, and the second rotor is arranged opposite to the second stator. The liquid cooling assembly is used for circulating cooling liquid, and along a first direction, the liquid cooling assembly is arranged between the first rotor and the second rotor, and the first rotor and the second rotor are both connected with the liquid cooling assembly. The first mover, the second mover, and the liquid cooling assembly are configured to be reciprocally movable relative to the first stator and the second stator in a second direction, the first direction and the second direction being perpendicular. The application liquid cooling subassembly is located outside the sub-module, is favorable to the increase to hold the space of coolant liquid to promote the radiating effect.
Description
Technical Field
The application relates to the technical field of linear transmission, in particular to a bilateral magnet type linear motor.
Background
At present, the application range of the linear motor is relatively wide, and the linear motor is already applied in the related technology of the machine tool industry. However, when the linear motor is applied in the existing machine tool industry, the problem of quick temperature rise of the linear motor exists, so that the temperature rise of structures such as loads connected with the linear motor is quick, and the machining precision of the machine tool is affected.
Disclosure of Invention
In view of this, the present application provides a double-sided magnet type linear motor, which is beneficial to improving the heat dissipation efficiency of the double-sided magnet type linear motor.
Some embodiments of the present application provide a double sided magnet-type linear motor that includes a stator module, a mover module, and a liquid cooling assembly. The stator module includes a first stator and a second stator disposed opposite to each other in a first direction. The rotor module comprises a first rotor and a second rotor, the first rotor and the second rotor are located between the first stator and the second stator along the first direction, the first rotor is arranged opposite to the first stator, and the second rotor is arranged opposite to the second stator. The liquid cooling assembly is used for circulating cooling liquid, and along a first direction, the liquid cooling assembly is arranged between the first rotor and the second rotor, and the first rotor and the second rotor are both connected with the liquid cooling assembly. The first mover, the second mover, and the liquid cooling assembly are configured to be reciprocally movable relative to the first stator and the second stator in a second direction, the first direction and the second direction being perpendicular.
In the above embodiment, the double-sided magnet type linear motor is adopted on the machine tool, so that the rotor module is arranged between the first stator and the second stator, which is favorable for balancing the force born by the rotor module, and reduces the pressure exerted by the rotor module on the guide rail, thereby reducing the friction force between the rotor module and the guide rail, and further being favorable for inhibiting the generation of heat. The liquid cooling subassembly is located outside rotor module and the stator module, is favorable to increasing the space that the liquid cooling subassembly is used for holding the coolant liquid, plays the effect that promotes the liquid cooling flow, and the liquid cooling subassembly is located between first rotor and the second rotor, is favorable to increasing the heat transfer area of liquid cooling subassembly in rotor module to the radiating effect has been improved. And the liquid cooling assembly is arranged outside the rotor module and the stator module, so that the risk that cooling liquid enters the rotor module and the stator module is reduced, the disassembly and the replacement of the liquid cooling assembly are facilitated, and the maintenance difficulty is reduced.
In some embodiments, the liquid cooling assembly comprises a liquid cooling member, the liquid cooling member is provided with a liquid cooling cavity, an opening in communication with the liquid cooling cavity, the liquid cooling cavity is used for containing a cooling liquid, the opening is in communication with the exterior of the liquid cooling cavity, the cooling liquid enters the liquid cooling cavity through the opening, and the cooling liquid flows out of the liquid cooling cavity through the opening.
In the above embodiment, compared with the scheme of arranging the liquid cooling structure in the rotor module or the stator module, the liquid cooling piece is arranged outside the rotor module and the stator module, and the liquid cooling piece is provided with the liquid cooling cavity, so that the liquid cooling cavity is enlarged, the flow of cooling liquid in the liquid cooling cavity is improved, and the heat dissipation effect is improved.
In some embodiments, the liquid cooling chamber comprises a first channel and a second channel which are communicated, the first channel and the second channel extend along a second direction, the first channel and the second channel are arranged along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The opening comprises a first communication port and a second communication port, the first channel is communicated with the first communication port, the second channel is communicated with the second communication port, cooling liquid enters the liquid cooling cavity through one of the first communication port and the second communication port, and the cooling liquid flows out of the liquid cooling cavity through the other of the first communication port and the second communication port.
In the above embodiment, the first channel and the second channel are provided to extend the circulation path of the cooling liquid in the liquid cooling assembly, so that the cooling liquid can more fully absorb the heat of the first rotor and the second rotor, thereby improving the heat dissipation effect. The first channel and the second channel extend along the second direction, and the first channel and the second channel are distributed along the third direction, so that the first channel and the second channel occupy less space, and the structure is more compact.
In some embodiments, the liquid cooling member has a first end and a second end disposed opposite to each other along the second direction, and the first communication port and the second communication port are disposed at the first end. In the second direction, one end of the first channel near the second end is communicated with the second channel.
In the above embodiment, along the second direction, one end of the first channel near the second end is communicated with the second channel, which is favorable for the liquid cooling piece to form a circulation channel, and the length of the circulation channel is increased, which is favorable for improving the heat dissipation efficiency, and meanwhile, the temperature of each part of cooling liquid in the first channel and the second channel is more balanced, so that the heat dissipation balance of the liquid cooling assembly is improved, and the reliability of the bilateral magnet type linear motor is favorable for being improved.
In some embodiments, a partition plate extending along the second direction is arranged in the liquid cooling cavity, the partition plate partitions the liquid cooling cavity into a first channel and a second channel, a notch is arranged at one end, away from the first communication port and the second communication port, of the partition plate along the second direction, and the notch penetrates through the partition plate along the third direction, so that the first channel and the second channel are communicated.
In some embodiments, the first channel and the second channel are disposed through in a second direction on a side of the first channel remote from the opening. The liquid cooling assembly further comprises a first cover plate, a second cover plate, a first pipe joint and a second pipe joint, wherein the first cover plate covers the first communication port and the second communication port, the second cover plate covers one side, far away from the opening, of the first channel and the second channel, the first pipe joint and the second pipe joint are connected to the first cover plate, the first communication port is communicated with the outside through the first pipe joint, and the second communication port is communicated with the outside through the second pipe joint.
In the above embodiment, the first cover plate and the second cover plate can seal the first channel and the second channel, and the first pipe joint and the second pipe joint can be communicated with the outside, so that the first channel and the second channel can form a cooling liquid circulation with the outside, and the heat dissipation effect can be improved.
In some embodiments, the liquid cooling assembly comprises a liquid cooling member, a liquid cooling cavity for circulating a cooling liquid is arranged in the liquid cooling member, the liquid cooling member is provided with a third end and a fourth end which are opposite along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The third end is provided with a first bulge and a second bulge which are distributed along the first direction, the surfaces of the first bulge and the second bulge, which deviate from the fourth end, are used for being connected with a load, the first bulge is connected with a first rotor, and the second bulge is connected with a second rotor. Along the first direction, dodge the groove is arranged between the first bulge and the second bulge.
In the above embodiment, the avoidance groove is beneficial to reducing the contact area between the liquid cooling member and the load, thereby being beneficial to inhibiting the heat transfer to the load, enabling the heat to be concentrated at the main body part of the liquid cooling member and enabling the cooling liquid to be taken away.
In some embodiments, the first protrusion protrudes away from the second protrusion in the first direction, such that the first protrusion and the body of the liquid cooling member form a first mounting groove, and the first mover is located in the first mounting groove and abuts against a surface of the first protrusion facing the fourth end. Along the first direction, the second bulge protrudes towards the direction far away from the first bulge, so that the second bulge and the main body of the liquid cooling piece form a second mounting groove, and the second rotor is positioned in the second mounting groove and is propped against the surface of the second bulge towards the fourth end.
In the above embodiment, the first protrusion may be connected to the first mover, and the second protrusion may be connected to the second mover, so that the connection between the liquid cooling member and the first mover and the second mover is facilitated.
In some embodiments, the liquid cooling assembly comprises a liquid cooling member, a liquid cooling cavity for circulating a cooling liquid is arranged in the liquid cooling member, the liquid cooling member is provided with a third end and a fourth end which are opposite along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The third end is provided with a third bulge and two avoidance grooves, the surface of the third bulge deviating from the fourth end is used for being connected with a load, the third bulge is arranged between the two avoidance grooves along the first direction, and the projection of the third bulge is positioned in the projection of the liquid cooling cavity along the third direction.
In the embodiment, the avoidance groove is beneficial to reducing the contact area between the liquid cooling piece and the load, thereby being beneficial to inhibiting the heat transfer to the load. The projection of the third bulge connected with the load in the third direction is positioned in the projection of the liquid cooling cavity in the third direction, so that the cooling liquid can more easily take away the heat of the third bulge, and the heat transfer towards the load can be further restrained.
In some embodiments, the first mover and the second mover are disposed offset along the second direction.
In the above embodiment, along the second direction, the first mover and the second mover are arranged in a staggered manner, so that the first mover and the second mover are not on the same horizontal line along the second direction, the first mover and the second mover are staggered at a certain position along the second direction, when the first mover cuts the N pole of the magnetic field, the second mover has a partial area at the S pole of the magnetic field, and the partial cogging force effect can be counteracted, thereby achieving the effect of reducing the cogging force, and further improving the running reliability of the bilateral magnet type linear motor.
In some embodiments, the double sided magnet linear motor further comprises a fixture fixedly connected to the first stator and the second stator, and a rail assembly connected to the fixture, the first mover and the second mover being slidably connected to the rail assembly, the first mover and the second mover being configured to reciprocate in the second direction in the rail assembly.
The double-sided magnet type linear motor is applied to a machine tool and comprises a stator module, a rotor module and a liquid cooling assembly. The stator module includes a first stator and a second stator disposed opposite in a first direction. The mover module includes a first mover and a second mover between the first stator and the second stator. Along the first direction, the liquid cooling assembly is arranged between the first rotor and the second rotor. The double-sided magnet type linear motor is adopted on the machine tool, so that the rotor module is arranged between the first stator and the second stator, the force born by the rotor module is balanced, the pressure applied by the rotor module to the guide rail is reduced, the friction force between the rotor module and the guide rail is reduced, and the generation of heat is restrained. The liquid cooling subassembly is located outside rotor module and the stator module, is favorable to increasing the space that the liquid cooling subassembly is used for holding the coolant liquid, plays the effect that promotes the liquid cooling flow, and the liquid cooling subassembly is located between first rotor and the second rotor, is favorable to increasing the heat transfer area of liquid cooling subassembly in rotor module to the radiating effect has been improved. And the liquid cooling assembly is arranged outside the rotor module and the stator module, so that the risk that cooling liquid enters the rotor module and the stator module is reduced, the disassembly and the replacement of the liquid cooling assembly are facilitated, and the maintenance difficulty is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a double-sided magnet type linear motor according to an embodiment of the present application.
Fig. 2 is an exploded view of the sub-module and liquid cooled assembly of fig. 1.
FIG. 3 is a cross-sectional view of the liquid cooling member of FIG. 2 taken along section line I-I.
Fig. 4 is a side view of the liquid cooling member of fig. 2.
Fig. 5 is a side view of a liquid cooling member according to an embodiment of the present application.
Fig. 6 is a top view of a liquid cooling assembly and a sub-module according to an embodiment of the present application.
Fig. 7 is a schematic partial structure diagram of a double-sided magnet type linear motor according to another embodiment of the present application.
Description of main reference numerals: the double-sided magnet type linear motor 100, the stator module 10, the first stator 11, the second stator 12, the iron plate 101, the permanent magnet 102, the mover module 20, the first mover 21, the second mover 22, the silicon steel sheet 201, the liquid cooling assembly 30, the liquid cooling member 31, the liquid cooling chamber 311, the first channel 3111, the second channel 3112, the opening 312, the first communication port 3121, the second communication port 3122, the first protrusion 313, the second protrusion 314, the avoidance groove 315, the first installation groove 316, the second installation groove 317, the third protrusion 318, the first end 31a, the second end 31b, the third end 31c, the fourth end 31d, the partition 32, the notch 321, the first cover plate 33, the second cover plate 34, the first pipe joint 35, the second pipe joint 36, the fixing member 40, the rail assembly 50, the first rail 51, the second rail 52, the first direction X, the second direction Y, and the third direction Z.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.
It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present.
The term "plurality" as used herein refers to two or more than two, unless specifically stated otherwise.
The terms "first," "second," and the like, are used merely to distinguish between different objects and should not be construed as indicating or implying a relative importance or number of technical features, a particular order or a primary or secondary relationship indicated.
The term "vertical" is used to describe an ideal state between two components. In the actual production or use state, there may be an approximately vertical state between the two components. For example, in conjunction with the numerical description, perpendicular may refer to an angle between two straight lines ranging between 90++10°, perpendicular may also refer to a dihedral angle between two planes ranging between 90++10°, and perpendicular may also refer to an angle between a straight line and a plane ranging between 90++10°.
It should be appreciated that the dimensions of the layers, regions, films, plates, blocks, pillars, protrusions, recesses, etc. shown in the drawings are presented for better understanding and for easier description, and the present application is not limited to the dimensions shown in the drawings. Elements not relevant to the description are omitted from the details of the present description for clarity of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The application discloses bilateral magnet type linear electric motor, bilateral magnet type linear electric motor includes stator module, rotor module and liquid cooling subassembly. The stator module includes a first stator and a second stator disposed opposite to each other in a first direction. The rotor module comprises a first rotor and a second rotor, the first rotor and the second rotor are located between the first stator and the second stator along the first direction, the first rotor is arranged opposite to the first stator, and the second rotor is arranged opposite to the second stator. The liquid cooling assembly is used for circulating cooling liquid, and along a first direction, the liquid cooling assembly is arranged between the first rotor and the second rotor, and the first rotor and the second rotor are both connected with the liquid cooling assembly. The first mover, the second mover, and the liquid cooling assembly are configured to be reciprocally movable relative to the first stator and the second stator in a second direction, the first direction and the second direction being perpendicular.
The double-sided magnet type linear motor is adopted on the machine tool, so that the rotor module is arranged between the first stator and the second stator, the force born by the rotor module is balanced, the pressure applied by the rotor module to the guide rail is reduced, the friction force between the rotor module and the guide rail is reduced, and the generation of heat is restrained. The liquid cooling subassembly is located outside rotor module and the stator module, is favorable to increasing the space that the liquid cooling subassembly is used for holding the coolant liquid, plays the effect that promotes the liquid cooling flow, and the liquid cooling subassembly is located between first rotor and the second rotor, is favorable to increasing the heat transfer area of liquid cooling subassembly in rotor module to the radiating effect has been improved. And the liquid cooling assembly is arranged outside the rotor module and the stator module, so that the risk that cooling liquid enters the rotor module and the stator module is reduced, the disassembly and the replacement of the liquid cooling assembly are facilitated, and the maintenance difficulty is reduced.
Some embodiments of the present application will be described below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, the embodiment of the present application provides a double-sided magnet-type linear motor 100, where the double-sided magnet-type linear motor 100 includes a stator module 10, a rotor module 20 and a liquid cooling assembly 30, and the liquid cooling assembly 30 plays a role in liquid cooling and heat dissipation for the rotor module 20.
Referring to fig. 1, the stator module 10 includes a first stator 11 and a second stator 12, and the first stator 11 and the second stator 12 are disposed opposite to each other along a first direction X. The mover module 20 includes a first mover 21 and a second mover 22, the first mover 21 and the second mover 22 being located between the first stator 11 and the second stator 12 along the first direction X, the first mover 21 being disposed opposite the first stator 11, and the second mover 22 being disposed opposite the second stator 12. When the first mover 21 and the second mover 22 are energized, the first mover 21 and the second mover 22 can reciprocate in the second direction Y with respect to the first stator 11 and the second stator 12, and the first direction X and the second direction Y are perpendicular.
In some embodiments, referring to fig. 1, each of the first stator 11 and the second stator 12 includes an iron plate 101 and a permanent magnet 102 provided on the iron plate 101.
In some embodiments, the first mover 21 and the second mover 22 each include a silicon steel sheet 201 and copper coils (not shown) provided on the silicon steel sheet 201.
The inventor researches that the mover of the single-side magnet type linear motor can bear force and act on the guide rail when being matched with the stator. The application adopts bilateral magnet type linear motor 100 on the machine tool, so that the rotor module 20 is arranged between the first stator 11 and the second stator 12, the force born by the rotor module 20 is balanced, the pressure applied by the rotor module 20 to the guide rail is reduced, the friction between the rotor module 20 and the guide rail is reduced, and further the generation of heat is restrained.
Referring to fig. 1, the liquid cooling assembly 30 is configured to circulate a cooling liquid (not shown), and the liquid cooling assembly 30 is disposed between the first mover 21 and the second mover 22 along a first direction X, and the first mover 21 and the second mover 22 are connected to the liquid cooling assembly 30. The first mover 21, the second mover 22, and the liquid cooling assembly 30 are configured to be capable of reciprocating relative to the first stator 11 and the second stator 12 in the second direction Y. The liquid cooling assembly 30 exchanges heat with the first mover 21 and the second mover 22, and takes away heat generated by the first mover 21 and the second mover 22 through cooling liquid flowing in the liquid cooling assembly 30.
The liquid cooling assembly 30 is arranged outside the rotor module 20 and the stator module 10, so that the space for containing cooling liquid of the liquid cooling assembly 30 is increased, the effect of improving the liquid cooling flow is achieved, the liquid cooling assembly 30 is arranged between the first rotor 21 and the second rotor 22, the heat exchange area of the liquid cooling assembly 30 in the rotor module 20 is increased, and the heat dissipation effect is improved. And the liquid cooling assembly 30 is arranged outside the rotor module 20 and the stator module 10, so that the risk that cooling liquid enters the rotor module 20 and the stator module 10 is reduced, the disassembly and the replacement of the liquid cooling assembly 30 are facilitated, and the maintenance difficulty is reduced.
In some embodiments, referring to fig. 1 and 2, the liquid cooling assembly 30 includes a liquid cooling member 31, the liquid cooling member 31 is provided with a liquid cooling cavity 311 and an opening 312 in communication with the liquid cooling cavity 311, the liquid cooling cavity 311 is used for containing a cooling liquid, the opening 312 is in communication with the outside of the liquid cooling cavity 311, the cooling liquid enters the liquid cooling cavity 311 through the opening 312, and the cooling liquid flows out of the liquid cooling cavity 311 through the opening 312.
Compared with the scheme that the liquid cooling structure is arranged inside the rotor module 20 or the stator module 10, the liquid cooling piece 31 is arranged outside the rotor module 20 and the stator module 10, and the liquid cooling piece 31 is provided with the liquid cooling cavity 311, so that the expansion of the liquid cooling cavity 311 is facilitated, the flow of cooling liquid in the liquid cooling cavity 311 is improved, and the heat dissipation effect is improved.
In some embodiments, referring to fig. 2, the liquid cooling chamber 311 includes a first channel 3111 and a second channel 3112 that are in communication, the opening 312 includes a first communication port 3121 and a second communication port 3122, the first channel 3111 is in communication with the first communication port 3121, the second channel 3112 is in communication with the second communication port 3122, the cooling liquid enters the liquid cooling chamber 311 through one of the first communication port 3121 and the second communication port 3122, and the cooling liquid flows out of the liquid cooling chamber 311 through the other of the first communication port 3121 and the second communication port 3122.
The first channel 3111 and the second channel 3112 can extend the circulation path of the cooling liquid in the liquid cooling assembly 30, so that the cooling liquid can more fully absorb the heat of the first mover 21 and the second mover 22, thereby improving the heat dissipation effect.
In some embodiments, the first communication port 3121 is a liquid inlet and the second communication port 3122 is a liquid outlet. In other embodiments, the first communication port 3121 is a liquid drain port and the second communication port 3122 is a liquid inlet port.
In some embodiments, referring to fig. 2, the first channel 3111 and the second channel 3112 extend along the second direction Y, and the first channel 3111 and the second channel 3112 are arranged along the third direction Z, and the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. This arrangement allows the first channel 3111 and the second channel 3112 to occupy less space, resulting in a more compact structure.
In some embodiments, the third direction Z is parallel to the gravity direction, and by arranging the first channel 3111 and the second channel 3112 along the third direction Z, the efficiency of the cooling liquid flowing from one of the first channel 3111 and the second channel 3112 to the other is improved, the circulation speed of the cooling liquid is improved, and the heat dissipation effect is further improved.
In some embodiments, the liquid cooling cavity 311 further includes more channels, such as a third channel and a fourth channel, or may be correspondingly provided with a third communication port and a fourth communication port, and the number of channels and the number of communication ports of the liquid cooling cavity 311 may be determined according to the volumes of the first mover 21 and the second mover 22, which are not limited herein specifically.
In some embodiments, referring to fig. 2 and 3, in the second direction Y, the liquid cooling member 31 has a first end 31a and a second end 31b disposed opposite to each other, and the first communication port 3121 and the second communication port 3122 are disposed at the first end 31a. In the second direction Y, an end of the first channel 3111 near the second end 31b communicates with the second channel 3112. The liquid cooling member 31 is favorable to form a cooling liquid circulation channel, the length of the circulation channel is increased, the heat dissipation efficiency is improved, the temperature of each part of cooling liquid in the first channel 3111 and the second channel 3112 is balanced, the heat dissipation balance of the liquid cooling assembly 30 is improved, and the reliability of the bilateral magnet type linear motor 100 is improved.
In some embodiments, referring to fig. 2 and 3, a partition plate 32 extending along a second direction Y is disposed in the liquid cooling chamber 311, the partition plate 32 separates the liquid cooling chamber 311 from a first channel 3111 and a second channel 3112, a notch 321 is disposed at an end of the partition plate 32 facing away from the first communication port 3121 and the second communication port 3122 along the second direction Y, and the notch 321 penetrates the partition plate 32 along a third direction Z to enable the first channel 3111 to communicate with the second channel 3112.
In some embodiments, the notch 321 on the partition 32 may be one or two or more, which is not limited herein.
In some embodiments, referring to fig. 2 and 3, the sides of the first channel 3111 and the second channel 3112 away from the opening 312 are disposed through in the second direction Y, which facilitates installation of the partition 32 and disposition of the notch 321.
In some embodiments, referring to fig. 2, the liquid cooling assembly 30 further includes a first cover plate 33, a second cover plate 34, a first pipe joint 35 and a second pipe joint 36, the first cover plate 33 covers the first communication port 3121 and the second communication port 3122, the second cover plate 34 covers a side of the first channel 3111 and the second channel 3112 away from the opening 312, the first pipe joint 35 and the second pipe joint 36 are connected to the first cover plate 33, the first communication port 3121 communicates with the outside through the first pipe joint 35, and the second communication port 3122 communicates with the outside through the second pipe joint 36. The first and second cover plates 33 and 34 can seal the first and second channels 3111 and 3112, and the first and second pipe joints 35 and 36 can communicate with the outside, so that the first and second channels 3111 and 3112 can be circulated with the outside, thereby improving heat dissipation effect.
In some embodiments, the number of the first pipe joints 35 may be one or two or more, and the number of the second pipe joints 36 may be one or two or more, which is not particularly limited herein.
In some embodiments, referring to fig. 1, 2 and 4, the liquid cooling assembly 30 includes a liquid cooling member 31, and a liquid cooling cavity 311 for circulating a cooling liquid is disposed in the liquid cooling member 31. In the third direction Z, the liquid cooling member 31 has a third end 31c and a fourth end 31d opposite to each other, the third end 31c is provided with a first protrusion 313 and a second protrusion 314 arranged in the first direction X, surfaces of the first protrusion 313 and the second protrusion 314 facing away from the fourth end 31d are used for connection with a load, the first protrusion 313 is connected with the first mover 21, and the second protrusion 314 is connected with the second mover 22. In the first direction X, a relief groove 315 is provided between the first protrusion 313 and the second protrusion 314. The avoidance groove 315 is beneficial to reducing the contact area between the liquid cooling member 31 and the load, thereby being beneficial to inhibiting the transmission of heat to the load, enabling the heat to be concentrated at the main body part of the liquid cooling member 31 and enabling the cooling liquid to be taken away.
In some embodiments, referring to fig. 1, 2 and 4, along the first direction X, the first protrusion 313 protrudes away from the second protrusion 314, so that the first protrusion 313 and the main body of the liquid cooling member 31 form a first mounting groove 316, and the first mover 21 is located in the first mounting groove 316 and abuts against a surface of the first protrusion 313 facing the fourth end 31d. Along the first direction X, the second protrusion 314 protrudes away from the first protrusion 313, so that the second protrusion 314 and the main body of the liquid cooling member 31 form a second mounting groove 317, and the second mover 22 is located in the second mounting groove 317 and abuts against a surface of the second protrusion 314 facing the fourth end 31d.
The first protrusion 313 and the first mover 21 can be connected, and the second protrusion 314 and the second mover 22 can be connected, so that the connection between the liquid cooling member 31 and the first mover 21 and the second mover 22 is facilitated.
In some embodiments, the first mover 21 is coupled to the first protrusion 313 by a bolt, and the second mover 22 is coupled to the second protrusion 314 by a bolt. The first protrusion 313 and the second protrusion 314 are provided with threaded holes (not identified) penetrating along the third direction Z, the first mover 21 and the second mover 22 are provided with through holes (not identified) penetrating along the third direction Z, and the bolts penetrate through the through holes and are in threaded fit with the threaded holes, so that the first mover 21 is locked to the first protrusion 313, and the second mover 22 is locked to the second protrusion 314.
In some embodiments, referring to fig. 5, in the third direction Z, the liquid cooling member 31 has a third end 31c and a fourth end 31d opposite to each other. The third end 31c is provided with a third protrusion 318 and two avoidance grooves 315, the surface of the third protrusion 318 deviating from the fourth end 31d is used for being connected with a load, the third protrusion 318 is arranged between the two avoidance grooves 315 along the first direction X, and the projection of the third protrusion 318 is positioned in the projection of the liquid cooling cavity 311 along the third direction Z.
The relief groove 315 is advantageous in reducing the contact area of the liquid cooling member 31 with the load, thereby facilitating suppression of heat transfer to the load. The projection of the third protrusion 318 connected with the load in the third direction Z is located in the projection of the liquid cooling cavity 311 in the third direction Z, so that the cooling liquid can more easily take away the heat of the third protrusion 318, and the heat transfer towards the load can be further suppressed.
In some embodiments, referring to fig. 6, the first mover 21 and the second mover 22 are disposed offset along the second direction Y.
When the first mover 21 and the second mover 22 are on the same horizontal line in the second direction Y, the first mover 21 and the second mover 22 simultaneously cut the magnetic field, which may cause the cogging force to be superimposed. Along the second direction Y, the first mover 21 and the second mover 22 are arranged in a staggered manner, so that the first mover 21 and the second mover 22 are not on the same horizontal line along the second direction Y, the first mover 21 and the second mover 22 are staggered at a certain position along the second direction Y, when the first mover 21 cuts the magnetic field N pole, the second mover 22 has a partial area at the cutting magnetic field S pole, and partial cogging force effect can be counteracted, thereby achieving the effect of reducing cogging force, and further improving the running reliability of the bilateral magnet type linear motor 100.
In some embodiments, referring to fig. 7, the double sided magnet type linear motor 100 further includes a fixing member 40 and a guide rail assembly 50, the fixing member 40 is fixedly connected to the first stator 11 and the second stator 12, the guide rail assembly 50 is connected to the fixing member 40, the first mover 21 and the second mover 22 are slidably connected to the guide rail assembly 50, and the first mover 21 and the second mover 22 are configured to reciprocate in the second direction Y in the guide rail assembly 50.
In some embodiments, referring to fig. 7, the rail assembly includes a first rail 51 and a second rail 52, the first rail 51 and the second rail 52 are connected to the fixing member 40, the first mover 21 is slidably connected to the first rail 51, and the second mover 22 is slidably connected to the second rail 52.
In addition, those of ordinary skill in the art will recognize that the above embodiments are presented for purposes of illustration only and are not intended to be limiting, and that appropriate modifications and variations of the above embodiments are within the scope of the disclosure of the present application.
Claims (11)
1. A double sided magnet type linear motor for a machine tool, comprising:
the stator module comprises a first stator and a second stator, and the first stator and the second stator are oppositely arranged along a first direction;
the rotor module comprises a first rotor and a second rotor, the first rotor and the second rotor are positioned between the first stator and the second stator along the first direction, the first rotor is arranged opposite to the first stator, and the second rotor is arranged opposite to the second stator;
the liquid cooling assembly is used for circulating cooling liquid, and is arranged between the first rotor and the second rotor along the first direction, and the first rotor and the second rotor are connected with the liquid cooling assembly;
the first mover, the second mover, and the liquid cooling assembly are configured to be reciprocally movable relative to the first stator and the second stator in a second direction, the first direction and the second direction being perpendicular.
2. The double sided magnet linear motor of claim 1, wherein the liquid cooling assembly comprises a liquid cooling member having a liquid cooling chamber, an opening in communication with the liquid cooling chamber, the liquid cooling chamber configured to receive the cooling liquid, the opening in communication with an exterior of the liquid cooling chamber, the cooling liquid entering the liquid cooling chamber through the opening, the cooling liquid exiting the liquid cooling chamber through the opening.
3. The double sided magnet linear motor of claim 2, wherein the liquid cooling chamber comprises a first channel and a second channel that are in communication, the first channel and the second channel extend along the second direction, and the first channel and the second channel are arranged along a third direction, the first direction, the second direction, and the third direction are perpendicular to each other;
the opening comprises a first communication port and a second communication port, the first channel is communicated with the first communication port, the second channel is communicated with the second communication port, cooling liquid enters the liquid cooling cavity through one of the first communication port and the second communication port, and the cooling liquid flows out of the liquid cooling cavity through the other of the first communication port and the second communication port.
4. A double sided magnet linear motor according to claim 3, wherein the liquid cooling member has a first end and a second end disposed opposite to each other along the second direction, the first communication port and the second communication port being disposed at the first end;
in the second direction, an end of the first channel near the second end is communicated with the second channel.
5. The double-sided magnet type linear motor according to claim 4, wherein a partition plate extending along the second direction is arranged in the liquid cooling cavity, the partition plate separates the liquid cooling cavity from the first channel and the second channel, a notch is arranged at one end, away from the first communication port and the second communication port, of the partition plate along the second direction, and the notch penetrates through the partition plate along the third direction, so that the first channel and the second channel are communicated.
6. The double sided magnet linear motor of claim 5, wherein the first channel and the second channel are disposed through the opening in the second direction on a side thereof remote from the opening;
the liquid cooling assembly further comprises a first cover plate, a second cover plate, a first pipe joint and a second pipe joint, wherein the first cover plate covers the first communication port and the second communication port, the second cover plate covers the first channel and one side, far away from the opening, of the second channel, the first pipe joint and the second pipe joint are connected to the first cover plate, the first communication port is communicated with the outside through the first pipe joint, and the second communication port is communicated with the outside through the second pipe joint.
7. The double-sided magnet type linear motor according to claim 1, wherein the liquid cooling assembly comprises a liquid cooling member, a liquid cooling cavity for circulating the cooling liquid is arranged in the liquid cooling member, the liquid cooling member is provided with a third end and a fourth end which are opposite along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;
the third end is provided with a first bulge and a second bulge which are arranged along the first direction, the surfaces of the first bulge and the second bulge, which deviate from the fourth end, are used for being connected with a load, the first bulge is connected with the first rotor, and the second bulge is connected with the second rotor;
and an avoidance groove is formed between the first bulge and the second bulge along the first direction.
8. The double sided magnet linear motor of claim 7, wherein the first protrusion protrudes away from the second protrusion in the first direction, such that the first protrusion and the body of the liquid cooling member form a first mounting groove, and the first mover is located in the first mounting groove and abuts against a surface of the first protrusion toward the fourth end;
along the first direction, the second protrusion protrudes towards a direction far away from the first protrusion, so that a second mounting groove is formed by the second protrusion and the main body of the liquid cooling piece, and the second rotor is positioned in the second mounting groove and abuts against the surface of the second protrusion towards the fourth end.
9. The double-sided magnet type linear motor according to claim 1, wherein the liquid cooling assembly comprises a liquid cooling member, a liquid cooling cavity for circulating the cooling liquid is arranged in the liquid cooling member, the liquid cooling member is provided with a third end and a fourth end which are opposite along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;
the third end is provided with a third bulge and two avoidance grooves, the surface of the third bulge, which is away from the fourth end, is used for being connected with a load, the third bulge is arranged between the two avoidance grooves along the first direction, and the projection of the third bulge is positioned in the projection of the liquid cooling cavity along the third direction.
10. The double sided magnet linear motor of claim 1, wherein the first mover and the second mover are offset along the second direction.
11. The double sided magnet linear motor of claim 1, further comprising a fixture fixedly coupled to the first stator and the second stator, and a rail assembly coupled to the fixture, the first mover and the second mover being slidably coupled to the rail assembly, the first mover and the second mover being configured to reciprocate in the second direction in the rail assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311806311.2A CN117498643A (en) | 2023-12-26 | 2023-12-26 | Double-sided magnet type linear motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311806311.2A CN117498643A (en) | 2023-12-26 | 2023-12-26 | Double-sided magnet type linear motor |
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