Linear motor rotor and linear motor
By setting a conductive module of hollow copper block and permanent magnet on the sliding part of the linear motor, the problems of poor energy saving effect and inconvenient assembly in the prior art are solved, and more efficient motor performance and simplified assembly process are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-10
- Publication Date
- 2026-04-10
AI Technical Summary
Existing linear motors have poor energy-saving performance, and the assembly and disassembly of coils or flat wires are inconvenient, resulting in low efficiency.
The system employs a mounting groove on the sliding component, within which a conductive module is installed. The conductive module consists of a hollow copper block and a permanent magnet. The magnetic fields of the hollow copper block and the permanent magnet are superimposed to enhance the magnetic field. The conductive connectors are electrically connected via an electrical connection cover, simplifying the assembly and disassembly process.
It effectively saves on the use of coils or flat wires, reduces copper loss, improves the working efficiency of linear motors, and simplifies the assembly and maintenance process.
Smart Images
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Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of linear motor, and aims to improve the working efficiency of linear motor, in particular to a linear motor mover and a linear motor. BACKGROUND
[0002] Linear motor is a kind of transmission device that directly converts electric energy into linear motion potential without any intermediate conversion mechanism; it can be regarded as a radial section of a rotary motor and is unfolded into a plane. Linear motor is also called linear motor, linear motor, linear motor, push rod motor; the most commonly used linear motor types are flat type and U-shaped groove type and pipe type; the typical composition of the coil is three-phase, and brushless commutation is realized by Hall sensor device; the working principle of linear motor: when the primary winding is connected to an alternating current power supply, a traveling wave magnetic field is generated in the air gap, and the secondary winding will induce an electromotive force and generate a current under the cutting of the traveling wave magnetic field. The current interacts with the magnetic field in the air gap to generate electromagnetic thrust. If the primary is fixed, the secondary will move linearly under the action of the thrust; otherwise, the primary will move linearly. The driving control technology of a linear motor application system not only requires a linear motor with good performance, but also requires a control system that can achieve technical and economic requirements under safe and reliable conditions.
[0003] In the prior art, the primary or the secondary of the linear motor is mostly assembled by using permanent magnets and insulating windings. The insulating windings are flat wires or number-of-turn coils, that is, grooves are arranged on the stator or the mover of the linear motor, and the flat wires or number-of-turn coils are installed in the grooves. The flat wire used on the stator and the mover of the linear motor is a core component of the linear motor. After upgrading the structure of the linear motor combined with the flat wire, the efficiency of the linear motor is improved. Since the flat wire is thick and the resistance is small, the energy loss due to heating on the wire will be smaller, effectively reducing the resistance of the flat wire and the copper loss. The inventor of the present application found in research that replacing the coil or the flat wire in the above with a conductive block can effectively save the coil at both ends of the stator or the mover, and also facilitate the assembly and disassembly of the staff, thereby improving the working efficiency of the linear motor. That is, the flat wire or the number-of-turn coil at both ends of the stator or the mover is used for electrical connection, and the flat wire or the coil does not do work, so it is better to be shorter. Therefore, the inventor of the present application has improved the structure. SUMMARY
[0004] The present application aims to provide a linear motor mover and a linear motor to solve the problem of poor energy-saving effect of the linear motor in the prior art.
[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a linear motor mover, the mover comprising: a sliding component; A mounting groove is arranged on the sliding component and extends along the length direction of the sliding component. A conductive module is mounted in the mounting groove and is detachably arranged in the mounting groove. A conductive connecting piece is mounted on the conductive module.
[0006] The conductive module comprises: A conductive medium is mounted in the mounting groove, and the conductive connecting piece is arranged at both ends of the conductive medium.
[0007] The conductive medium is a conductive block, and the conductive connecting piece is arranged at both ends of the conductive block.
[0008] The conductive block is a copper block, preferably a hollow copper block, and the conductive connecting piece is arranged at both ends of the hollow copper block.
[0009] The conductive module further comprises: An inspirational magnetic field is mounted in the mounting groove, and the inspirational magnetic field is arranged at intervals with the conductive medium.
[0010] The inspirational magnetic field is a permanent magnet.
[0011] The conductive connecting piece is a conductive column.
[0012] The sliding component is a sliding block, and the mounting groove is arranged on the sliding block.
[0013] The sliding component comprises: A U-shaped sliding groove, and the sliding block is mounted on the U-shaped sliding groove.
[0014] The present application provides a linear motor, which comprises: A stator; A magnetic pole is arranged on the stator and extends along the length direction of the stator, and the stator is provided with the mover described above.
[0015] The magnetic pole is a permanent magnet.
[0016] The magnetic pole comprises: A conductive block is arranged at intervals with the permanent magnet.
[0017] The U-shaped sliding groove comprises: A mounting through hole is arranged on the two vertical plates of the U-shaped sliding groove and extends along the length direction of the vertical plate, and a conductive film module is mounted in the mounting through hole and is detachably arranged in the mounting through hole.
[0018] The U-shaped sliding groove comprises: A lower power connection cover plate is installed on the upright plate, and the lower end of the conductive film assembly is connected to the lower power connection cover plate; An on-board connection cover is installed on the horizontal plate of the U-shaped slide groove, and the upper end of the conductive film assembly is electrically connected to the on-board connection cover.
[0019] This invention provides a linear motor, the motor comprising: The stator is T-type; Magnetic poles are arranged opposite each other on the vertical plate of the T-shaped stator and along the length direction of the vertical plate of the T-shaped stator. The stator is provided with the mover described above.
[0020] The magnetic poles are permanent magnets.
[0021] The magnetic poles include: Conductive blocks are spaced apart from the permanent magnets.
[0022] The slider includes: A rectangular groove is disposed opposite to the slider and along the length direction of the slider. A conductive film assembly is installed in the rectangular groove and is matched with the rectangular groove and is detachably disposed in the rectangular groove.
[0023] The slider includes: A lower power connection cover plate is installed at the lower end of the slider, and the lower end of the conductive film assembly is connected to the lower power connection cover plate; An on-grip connection cover is installed on the upper end of the slider, and the upper end of the conductive film assembly is electrically connected to the on-grip connection cover.
[0024] This invention provides a linear motor, the motor comprising: The stator is U-shaped; Magnetic poles are arranged opposite to each other on two vertical plates of the U-shaped stator and along the length of the U-shaped stator. The U-shaped stator contains the mover described above.
[0025] The magnetic poles are permanent magnets.
[0026] The magnetic poles include: Conductive blocks are spaced apart from the permanent magnets.
[0027] Compared with the prior art, the present invention has the following advantages: This invention provides a solution by setting multiple mounting slots on the sliding component of the mover and installing a conductive module in each slot. The conductive module includes a hollow conductive block, which reduces the step of winding the coil in the groove of the sliding component, saves the linear motor manufacturing process, saves costs, and facilitates assembly by workers.
[0028] The conductive module provided by this invention includes a hollow copper block and a permanent magnet. The hollow copper block replaces the coil or flat wire, which can save the coils protruding from both ends of the mover, thereby further reducing the manufacturing cost of the linear motor. The magnetic field generated by the permanent magnet is superimposed with the magnetic field generated by the hollow copper block, which enhances the magnetic field on the mover and helps to improve the work done by the linear motor.
[0029] This invention completes the electrical connection between the conductive block and the outside world by setting conductive posts on the conductive block, mounting the conductive block on the sliding component, and installing an electrical connection cover plate on the sliding component. The conductive posts are inserted into the electrical connection cover plate, thereby saving the extra coils at both ends of the stator. In other words, the flat wires or coils at both ends of the stator or mover are used for electrical connection. These flat wires or coils do not do work, so the shorter the better.
[0030] The electrical connection cover provided by this invention not only saves copper but also facilitates assembly and subsequent maintenance. In the prior art, the coils or flat wires on the mover are alternately arranged in the groove, which is inconvenient for workers to assemble. The electrical connection cover completes the plug-in electrical connection between the conductive blocks, which facilitates assembly and subsequent disassembly.
[0031] This invention provides a linear motor with magnetic poles arranged on the stator along the length of the stator, and a mover mounted on the stator. Due to the improvement of the mover or stator, the linear motor assembled on the stator improves the working efficiency of the linear motor.
[0032] This invention provides a second linear motor with a T-shaped stator and a U-shaped mover. Magnetic poles are symmetrically arranged on the T-shaped stator and arranged along the length of the U-shaped stator. The U-shaped mover is mounted on the T-shaped stator. Due to the improvement of the U-shaped mover or T-shaped stator and its mounting on the T-shaped stator, the working efficiency of the linear motor is improved.
[0033] This invention provides a linear motor 3, with a U-shaped stator and a rectangular mover. Magnetic poles are symmetrically arranged on the U-shaped stator along the length of the U-shaped stator. Conductive film assemblies are symmetrically arranged on the rectangular mover. The rectangular mover is mounted on the U-shaped stator. Due to the improvement of the rectangular mover or the U-shaped stator, a linear motor is formed by combining them, which improves the working efficiency of the linear motor.
[0034] The magnetic poles used on the stator of this invention include permanent magnets and conductive blocks. The magnetic field generated by the conductive blocks is superimposed on the magnetic field of the magnetic poles, enhancing the magnetic field on the stator and further improving the work done by the linear motor. By setting permanent magnets and conductive blocks on the stator, reverse control of the mover installed on the stator can be achieved. That is, when the conductive blocks on the stator are energized, the mover slides on the stator under the action of the magnetic field, improving the functionality of the linear motor. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the linear motor in this embodiment. Figure 1 ; Figure 2 This is a schematic diagram of the stator in this embodiment. Figure 1 ; Figure 3 This is a schematic diagram of the stator in this embodiment. Figure 2 ; Figure 4 This is a schematic diagram of the linear motor in this embodiment. Figure 2 ; Figure 5 This is a schematic diagram of the stator in this embodiment. Figure 2 ; Figure 6 This is a schematic diagram of the stator in this embodiment. Figure 3 ; Figure 7 This is a schematic diagram of the linear motor in this embodiment. Figure 3 ; Figure 8 This is a schematic diagram of the rotor in this embodiment. Figure 3 ; Figure 9 This is a schematic diagram of the stator in this embodiment. Figure 4 ; Figure 10 This is a schematic diagram of the moving part in this embodiment. Figure 1 ; Figure 11 This is a schematic diagram of the moving part in this embodiment. Figure 2 ; Figure 12 This is a schematic diagram of the moving part in this embodiment. Figure 3 ; Figure 13 This is a schematic diagram of the moving part in this embodiment. Figure 4 ; Figure 14 This is a schematic diagram of the moving part in this embodiment. Figure 5 ; Figure 15 This is a schematic diagram of the electrical connection cover in this embodiment. Figure 1 ; Figure 16 This is a schematic diagram of the electrical connection cover in this embodiment. Figure 2 ; Figure 17 This is a schematic diagram of the moving part in this embodiment. Figure 6 ; Figure 18 This is a schematic diagram of the moving part in this embodiment. Figure 7 ; Figure 19 This is a schematic diagram of the electrical connection cover in this embodiment. Figure 3 ; Figure 20This is a schematic diagram of the electrical connection cover in this embodiment. Figure 4 ; Figure 21 This is a schematic diagram of the permanent magnet in this embodiment; Figure 22 This is a schematic diagram of the hollow conductive block in this embodiment.
[0036] In the diagram: 1. Stator, 1-1. Magnetic pole, 1-2. Stator mounting base, 1-3. Rectangular slot, 2. Moving part, 2-1. U-shaped slot, 2-2. Sliding part, 2-3. Conductive block, 2-4. Mounting hole, 2-5. Conductive post, 2-6. Lower power connection cover, 2-7. Upper power connection cover. Implementation
[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
[0038] The structure of a linear motor mainly consists of three parts: a stator, a mover, and a support wheel for linear motion. To ensure good electromagnetic field coupling between the stator and mover within the stroke range, the core lengths of the stator and mover are unequal; the stator can be made in two forms: short stator and long stator. Like rotating magnetic fields, the stator core of a linear motor is also made of stacked silicon steel sheets with slots on the surface; three-phase, two-phase, or single-phase windings are embedded in the slots; single-phase linear asynchronous motors can be made in a shaded-pole configuration or can use capacitor phase shifting.
[0039] Reference Figures 10-11 The linear motor mover 2 includes a sliding component 2-2 with multiple mounting slots / holes 2-4 arranged along its length. Each mounting slot / hole 2-4 contains a conductive film assembly, and each conductive film assembly has a conductive connector / post 2-5. The conductive connector / post 2-5 is electrically connected to the external environment to power the conductive film assembly, ensuring good electromagnetic field coupling between the stator and mover 2 within the stroke range, thus enabling the mover 1 to slide on the stator 1. In existing technologies, multi-turn coils or flat wires result in numerous extra coils or flat wires at both ends of the mover 2. These coils or flat wires are used for electrical connection but do not perform work, resulting in waste of the coils or flat wires. The conductive film assembly provided in this application is matched with the mounting groove / mounting hole 2-4, and both ends are electrically connected to the outside through conductive connectors / conductive posts 2-5, which can effectively save the extra coils or flat wires at both ends of the mover 2; at the same time, the conductive film assembly can be installed by inserting it into the mounting groove / mounting hole 2-4, while the flat wires or coils with multiple turns are arranged alternately, which is inconvenient for assembly and subsequent maintenance.
[0040] Reference Figures 10-11 - Figure 22As shown, the sliding component 2-2 is a slider, which is rectangular and made of stacked silicon steel sheets. The mounting groove on the slider is formed by stacking multiple layers of silicon steel sheets. There are wire-passing grooves between adjacent mounting grooves, and wire-passing grooves are also provided at the front and rear ends of the mounting grooves, which facilitates the installation of conductive film assemblies and their series connection through wires. A wire-passing hole is provided on one side of the slider, and the wire-passing hole is connected by the wire-passing groove. The slider is also provided with a U-shaped groove 2-1, and the slider is installed on the U-shaped groove 2-1. The U-shaped groove 2-1 is provided to facilitate the mating with the stator 1. This design facilitates the series connection between conductive film assemblies and the electrical connection with the external linear motor controller.
[0041] Furthermore, refer to Figures 10-11 - Figure 22 As shown, the conductive module includes a conductive medium installed in a mounting groove. Conductive connectors / conductive posts 2-5 are positioned at both ends of the conductive medium. The ends of the conductive connectors / conductive posts 2-5 are placed in a wire-passing groove and connected in series with wires within the groove. The wires pass through wire-passing holes to connect electrically to the outside, thus supplying power to the conductive medium. The conductive medium is made of materials capable of generating a magnetic field when energized; that is, materials that generate a magnetic field simply by accepting an input current. This design allows for customization based on the needs of linear motors, aiming to create linear motors suitable for different environments by using conductive film assemblies made from different materials.
[0042] Furthermore, the conductive medium is a copper block, which is installed in the mounting groove and electrically connected to the outside via conductive connectors / conductive posts 2-5. The copper block is a hollow copper block; using a hollow copper block saves copper material due to the skin effect. The hollow copper block is installed in the mounting groove and electrically connected to an external linear motor driver via conductive connectors / conductive posts 2-5. The linear motor driver is manufactured by Guangzhou Dematic Electric Co., Ltd. The magnetic field generated by the hollow copper block ensures good electromagnetic field coupling between the stator and mover 2 within the stroke range, thereby enabling the mover 2 to slide on the stator 1.
[0043] Reference Figures 10-11 - Figure 21 As shown, the conductive module also includes an excitation magnetic field, which is installed in the mounting slot. The excitation magnetic field is spaced apart from the hollow copper block. This arrangement is for the purpose of saving power. That is, the magnetic field generated by the hollow copper block and the magnetic field generated by the excitation magnetic field are superimposed to enhance the magnetic field on the mover 2, which is beneficial for the mover 2 to do work on the stator 1. The magnetic field generated by the hollow copper block and the magnetic field generated by the excitation magnetic field are superimposed to ensure good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby enabling the mover 2 to slide on the stator 1.
[0044] Furthermore, the driving magnetic field is a permanent magnet. The magnetic field generated by the permanent magnet is superimposed with the magnetic field generated by the hollow copper block, which enhances the magnetic field on the mover 2. As the number of permanent magnets increases, the number of hollow copper blocks used on the mover 2 will decrease. The reduction in the number of hollow copper blocks will also reduce the current used, thus saving power. The magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby enabling the mover 2 to slide on the stator 1.
[0045] Furthermore, the hollow copper block and permanent magnet located in the mounting slot can be set at an angle, that is, the mounting slot on the mover 2 can also be set at an angle. The current and voltage used by the angled hollow copper block are more stable. The angled hollow copper block makes the current a sine wave, reducing the harmonics generated when the linear motor is working and improving the working efficiency of the linear motor. That is, reducing the swing of the mover 2 on the stator 1 when the linear motor is working; please refer to here: No. 202321984589.4, a stator, motor and generator, the technology provided.
[0046] Furthermore, the hollow copper blocks located on the mover 2 can be electrically connected as follows: Three hollow copper blocks can be installed in the mounting slot on the mover 2. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside through leads. This electrical connection method is the same as the number of turns coil or flat wire connection method on the mover 2 in the prior art. Please refer to the linear motor wiring principle described in the original document of the Permanent Magnet Linear Synchronous Motor Design Institute (book18.com). Three hollow copper blocks plus one permanent magnet can be installed in the mounting slot on the mover 2. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside through leads. The magnetic field generated by the hollow copper blocks is superimposed with the magnetic field of the permanent magnet, enhancing the magnetic field on the mover 2. This electrical connection method is the same as the number of turns coil or flat wire connection method on the mover 2 in the prior art.
[0047] Furthermore, the number of hollow copper blocks or permanent magnets on the mover 2 can be set as needed. That is, the number of hollow copper blocks on the mover 2 is not limited to the above-mentioned 3 plus 1 permanent magnet, but can also be 6 or 9, and the number of permanent magnets can be 2 or 3.
[0048] like Figures 1-3As shown, this embodiment provides a linear motor including a stator 1. The stator 1 includes a stator mounting base 1-2. The cross-section of the stator mounting base 1-2 is T-shaped. A rectangular slot 1-3 is provided on the boss of the stator mounting base 1-2. The rectangular slots 1-3 are evenly arranged along the length direction of the stator mounting base 1-2. Each rectangular slot 1-3 is provided with a magnetic pole 1-1. The magnetic pole is a permanent magnet. The stator 1 here has the same structure as the stator in the prior art. Please refer to: Originality Documents of Permanent Magnet Linear Synchronous Motor Design Institute (book18.com). The aforementioned mover 2 is installed on the boss of the stator mounting base 1-2. An air gap is left between the recess of the U-shaped groove 2-1 and the boss of the stator mounting base 1-2. The two vertical plates of the U-shaped groove 2-1 are in contact with the two horizontal plates of the stator mounting base 1-2. The hollow copper block generates a magnetic field or the magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby completing the sliding of the mover 2 on the stator 1.
[0049] like Figures 2-3 As shown, magnetic pole 1-1 also includes a hollow copper block, which is also installed in the rectangular slot 1-3. The hollow copper block and the permanent magnet are spaced apart. Powering the hollow copper block generates a magnetic field that superimposes with the magnetic field of the permanent magnet, enhancing the magnetic field on stator 1. The hollow copper block on mover 2 generates a magnetic field, or the magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic coupling between stator 1 and mover 2 within the stroke range, thus enabling mover 2 to slide on stator 1. The advantage of this arrangement is that by setting the permanent magnet and conductive block on stator 1, reverse control of mover 2 installed on stator 1 can be achieved. That is, when the conductive block on stator 1 is energized, mover 2 slides on stator 1 under the action of the magnetic field, improving the functionality of the linear motor.
[0050] Furthermore, the linear motor described above can also be understood as a flat linear motor. The iron core of the flat linear motor is mounted on a steel lamination structure and then mounted on an aluminum back plate. The iron lamination structure is used to guide the magnetic field and increase the thrust. The attraction between the magnetic track and the mover is proportional to the thrust generated by the motor. The lamination structure causes the joint force to be generated. Care must be taken when mounting the mover onto the magnetic track to avoid damage caused by the attraction between them.
[0051] Furthermore, the existing RYK Jiayi domestic linear motor small flat linear motor module slide table with multiple movers uses about 10 kg of copper, while this product uses about 7 catties of copper, meaning it saves about 7 catties of copper. By installing a permanent magnet on mover 2, the copper used is reduced to about 6 catties, thus saving about 6 catties of copper. Under load conditions, the existing technology consumes 1 kWh per hour, while this product consumes 0.6 kWh per hour, meaning the motor saves 0.4 kWh per hour.
[0052] Furthermore, such asFigures 12-16 As shown, the U-shaped slide 2-1 includes mounting through holes 2-4. The mounting through holes 2-4 are set opposite to each other on the two vertical plates of the U-shaped slide 2-1 and are set along the length of the vertical plates. The hollow copper block is installed in the mounting through hole 2-4. The outer contour of the hollow copper block matches the mounting through hole 2-4 and is detachably set in the mounting through hole 2-4. This design is beneficial to improve the work of the linear motor and realize the movement 2 sliding from the side. That is, two rows of magnetic poles 1-1 are designed on the side of the stator 1, and the hollow copper block on the movement 2 has good electromagnetic field coupling with the stator 1, thereby completing the movement 2 sliding on the stator 1.
[0053] Furthermore, such as Figures 15-16 As shown, the U-shaped slide 2-1 is provided with an upper electrical connection cover plate 2-7 and a lower electrical connection cover plate 2-6. Multiple cylindrical electrical connectors are respectively provided on the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. These cylindrical electrical connectors are arranged along the length of the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. One end of each cylindrical electrical connector extends into the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6, while the other end is parallel to the surface of the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. Connecting wires are provided inside the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. An electrical connection is established between the cylindrical electrical connectors on the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. The conductive post 2-5 on the hollow copper block is inserted into the cylindrical electrical connector to complete the electrical connection between the hollow copper block and the outside world. Since the coil or flat wire at the end does not contribute to the power of the mover 2 and only serves as a connection, it will generate additional electrical losses. Therefore, the shorter the better. Thus, the upper electrical connection cover plate 2-6 and the lower electrical connection cover plate 2-7 provided in this embodiment complete the electrical connection between the hollow copper blocks, thereby saving the extra coil or flat wire at both ends of the mover 2. For details, see: 202310339002.2 A technology in a motor terminal block.
[0054] Furthermore, such as Figure 12 As shown, both the upper power connection cover 2-7 and the lower power connection cover 2-6 are insulated covers. The lower power connection cover 2-6 is installed on the two vertical plates of the U-shaped slide 2-1, and it completes the electrical connection of the lower part of the hollow copper block on the two vertical plates of the U-shaped slide 2-1. The upper power connection cover 2-7 is provided with a through hole, which is connected to the lead wire groove inside the upper power connection cover 2-7. The wire is connected to the lead wire, and the other end of the wire is electrically connected to the external linear motor controller. The upper power connection cover 2-7 is installed on the vertical plate of the U-shaped slide 2-1, and it completes the electrical connection of the upper part of the hollow copper block on the two vertical plates of the U-shaped slide 2-1. It supplies power to the hollow copper block on the mover 2, generating a magnetic field that has good electromagnetic field coupling with the stator 1, thereby enabling the mover 2 to slide on the stator 1.
[0055] Furthermore, an excitation magnetic field is provided in the mounting through holes 2-4. The excitation magnetic field is a permanent magnet. The magnetic field generated by the permanent magnet is superimposed with the magnetic field generated by the hollow copper block, which enhances the magnetic field on the mover 2. As the number of permanent magnets increases, the number of hollow copper blocks used on the mover 2 will decrease. The reduction in the number of hollow copper blocks will also reduce the current used, thus saving power. The magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby enabling the mover 2 to slide on the stator 1.
[0056] Furthermore, the hollow copper block and permanent magnet located in the mounting through hole 2-4 can be set at an angle, that is, the mounting through hole 2-4 on the mover 2 can be set at an angle. The current and voltage used by the angled hollow copper block are more stable. The angled hollow copper block makes the current a sine wave, reducing the harmonics generated when the linear motor is working and improving the working efficiency of the linear motor. That is, it reduces the oscillation of the mover 2 on the stator 1 when the linear motor is working; please refer to here: No. 202321984589.4, a stator, motor and generator, the technology provided.
[0057] Furthermore, the hollow copper blocks located on the mover 2 can be electrically connected as follows: Three hollow copper blocks can be installed in the mounting through holes 2-4 on the mover 2. These mounting through holes 2-4 are arranged in two sets of opposite orientations, with four mounting through holes 2-4 in each set. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside via leads. This electrical connection method is the same as the coil-on-coil or flat wire connection method on the mover in the prior art. Please refer to: Originality Documents of the Permanent Magnet Linear Synchronous Motor Design Institute (book18.com). Alternatively, three hollow copper blocks plus one permanent magnet can be installed in the mounting through holes 2-4 on the mover 2. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside via leads. The magnetic field transmitted by the hollow copper blocks is superimposed on the magnetic field of the permanent magnet, enhancing the magnetic field on the mover 2. This electrical connection method is the same as the coil-on-coil or flat wire connection method on the mover in the prior art.
[0058] Furthermore, the number of hollow copper blocks or permanent magnets located on the mover 2 can be set as needed. That is, the number of hollow copper blocks on the mover 2 is not limited to the above-mentioned 3 plus 1 permanent magnet, but can also be 6 or 9, and the number of permanent magnets can be 2 or 3.
[0059] like Figures 4-6As shown, this embodiment provides a linear motor including a stator 1, which is a T-shaped stator. The T-shaped stator 1 includes a stator mounting base 1-2, the cross-section of which is also T-shaped. Rectangular slots 1-3 are arranged opposite each other on the boss of the stator mounting base 1-2. The rectangular slots 1-3 are evenly arranged along the length of the stator mounting base 1-2. Each rectangular slot 1-3 is provided with a magnetic pole 1-1, which is a permanent magnet. That is, there are two rows of magnetic poles 1-1 on the T-shaped stator 1. The aforementioned mover 2 is installed on the boss of the stator mounting base 1-2. A gap is left between the recess of the U-shaped groove 2-1 and the boss of the stator mounting base 1-2. An air gap is left between the two vertical plates of the U-shaped groove 2-1 and the two horizontal plates of the stator mounting base 1-2. The hollow copper block generates a magnetic field or the magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby completing the sliding of the mover 2 on the stator 1.
[0060] like Figures 5-6 As shown, magnetic pole 1-1 also includes hollow copper blocks, which are also installed in rectangular slots 1-3. The hollow copper blocks are spaced apart from the permanent magnets. Powering the hollow copper blocks generates a magnetic field that superimposes with the magnetic field of the permanent magnets, enhancing the magnetic field on stator 1. The hollow copper blocks on mover 2 generate a magnetic field, or the magnetic field generated by the hollow copper blocks is superimposed with the magnetic field of the permanent magnets, ensuring good electromagnetic coupling between stator 1 and mover 2 within the stroke range, thus enabling mover 2 to slide on stator 1. The advantage of this arrangement is that by setting permanent magnets and conductive blocks on stator 1, reverse control of mover 2 installed on stator 1 can be achieved. That is, when the conductive blocks on stator 1 are energized, mover 2 slides on stator 1 under the action of the magnetic field, improving the functionality of the linear motor.
[0061] Furthermore, the linear motor described above can also be understood as a U-shaped groove linear motor. The U-shaped groove linear motor has two parallel magnetic rails between metal plates, both facing the coil mover. The mover is supported by a guide rail system between the two magnetic rails. The mover is non-steel, which means there is no attraction and no interference force is generated between the magnetic rails and the thrust coil. The non-steel coil assembly has a small inertia and allows for very high acceleration. This design can better reduce magnetic flux leakage because the magnets are installed face-to-face in the U-shaped guide groove. This design also minimizes the damage caused by strong magnetic attraction.
[0062] Furthermore, the existing RYK Jiayi domestic linear motor small flat linear motor module slide table with multiple movers uses about 20 kg of copper, while this product uses about 14 catties of copper, meaning it saves 6 catties of copper. By installing a permanent magnet on mover 2, the copper used is reduced to about 12 catties, thus saving about 8 catties of copper. Under load conditions, the existing technology consumes 1 kWh per hour, while this product consumes 0.6 kWh per hour, meaning the motor saves 0.4 kWh per hour.
[0063] Furthermore, such as Figures 17-20 As shown, a rectangular slot is provided on the sliding component 2-2. The rectangular slot is positioned opposite to the sliding component 2-2 and is arranged along the length of the sliding component 2-2. A hollow copper block is installed in the rectangular slot and is matched with the rectangular slot and is detachably installed in the rectangular slot. This design is beneficial to improving the work of the linear motor and realizing the movement 2 sliding from the side within the U-shaped stator. That is, two rows of magnetic poles 1-1 are designed opposite to each other on the side of the stator 1, and the hollow copper block on the movement 2 has good electromagnetic field coupling with the stator 1, thereby completing the sliding of the movement 2 on the stator 1.
[0064] Furthermore, such as Figures 19-20 As shown, the sliding component 2-2 is provided with an upper electrical connection cover plate 2-7 and a lower electrical connection cover plate 2-6. Multiple cylindrical electrical connectors are respectively provided on the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. These cylindrical electrical connectors are arranged along the length of the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. One end of each cylindrical electrical connector extends into the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6, while the other end is parallel to the surface of the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. Connecting wires are provided inside the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. An electrical connection is established between the cylindrical electrical connectors on the upper electrical connection cover plate 2-7 and the lower electrical connection cover plate 2-6. The conductive post 2-5 on the hollow copper block is inserted into the cylindrical electrical connector to complete the electrical connection between the hollow copper block and the outside world. Since the coil or flat wire at the end does not contribute to the power of the mover 2 and only serves as a connection, it will generate additional electrical losses. Therefore, the shorter the better. Thus, the upper electrical connection cover plate 2-6 and the lower electrical connection cover plate 2-7 provided in this embodiment complete the electrical connection between the hollow copper blocks, thereby saving the extra coil or flat wire at both ends of the mover 2. For details, see: 202310339002.2 A technology in a motor terminal block.
[0065] Furthermore, such as Figures 19-20 As shown, both the upper power connection cover 2-7 and the lower power connection cover 2-6 are insulated covers. The lower power connection cover 2-6 is installed on the two vertical plates of the sliding component 2-2, completing the electrical connection of the lower part of the hollow copper block on the sliding component 2-2. The upper power connection cover 2-7 is provided with a through hole, which is connected to the lead wire groove inside the upper power connection cover 2-7. The wire is connected to the lead wire, and the other end of the wire is electrically connected to the external linear motor controller. The upper power connection cover 2-7 is installed on the vertical plate of the U-shaped slide 2-1, completing the electrical connection of the upper part of the hollow copper block on the two vertical plates of the U-shaped slide 2-1. Powering the hollow copper block on the mover 2 generates a magnetic field that has good electromagnetic field coupling with the stator 1, thereby completing the sliding of the mover 2 on the stator 1.
[0066] Furthermore, an excitation magnetic field is set inside the rectangular slot. The excitation magnetic field is a permanent magnet. The magnetic field generated by the permanent magnet is superimposed with the magnetic field generated by the hollow copper block, which enhances the magnetic field on the mover 2. As the number of permanent magnets increases, the number of hollow copper blocks used on the mover 2 will decrease. The reduction in the number of hollow copper blocks will also reduce the current used, thus saving power. The magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby enabling the mover 2 to slide on the stator 1.
[0067] Furthermore, the hollow copper block and permanent magnet located in the rectangular slot can be set obliquely, that is, the rectangular slot on the mover 2 can also be set obliquely. The current and voltage used by the obliquely set hollow copper block are more stable. The obliquely set hollow copper block makes the current a sine wave, reducing the harmonics generated when the linear motor is working, improving the working efficiency of the linear motor, that is, reducing the oscillation of the mover 2 on the stator 1 when the linear motor is working; please refer to here: No. 202321984589.4, a stator, motor, generator, and the technology provided.
[0068] Furthermore, the hollow copper blocks located on the mover 2 can be electrically connected as follows: Three hollow copper blocks can be installed in the rectangular slots on the mover 2. There are two sets of four rectangular slots each. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside via leads. This electrical connection method is the same as the coil-on-coil or flat wire connection method on the mover in the prior art. Please refer to: Originality Documents of Permanent Magnet Linear Synchronous Motor Design Institute (book18.com), Wiring is the Principle Steps. Three hollow copper blocks plus one permanent magnet can be installed in the rectangular slots on the mover 2. The conductive posts 2-5 at both ends of the hollow copper blocks are connected in series and electrically connected to the outside via leads. The magnetic field transmitted by the hollow copper blocks is superimposed with the magnetic field of the permanent magnet, enhancing the magnetic field on the mover 2. This electrical connection method is the same as the coil-on-coil or flat wire connection method on the mover in the prior art.
[0069] Furthermore, the number of hollow copper blocks or permanent magnets located on the mover 2 can be set as needed. That is, the number of hollow copper blocks on the mover 2 is not limited to the above-mentioned 3 plus 1 permanent magnet, but can also be 6 or 9, and the number of permanent magnets can be 2 or 3.
[0070] like Figures 7-9As shown, this embodiment provides a linear motor including a stator 1, which is a U-shaped stator. The stator 1 includes a stator mounting base 1-2, which has a U-shaped cross-section. Rectangular slots 1-3 are arranged opposite to each other on the two vertical plates of the U-shape of the stator mounting base 1-2. The rectangular slots 1-3 are evenly arranged along the length of the stator mounting base 1-2. Each rectangular slot 1-3 is provided with a magnetic pole 1-1, which is a permanent magnet. That is, there are two rows of magnetic poles 1-1 on the U-shaped stator 1. The aforementioned mover 2 is installed in the U-shaped groove of the stator mounting base 1-2. An air gap is left between the two sides of the sliding component 2-2 and the U-shaped groove of the stator mounting base 1-2. A gap is left between the power connection cover 2-7 on the sliding component 2-2 and the two horizontal plates on the stator mounting base 1-2. The hollow copper block generates a magnetic field, or the magnetic field generated by the hollow copper block is superimposed with the magnetic field of the permanent magnet, ensuring good electromagnetic field coupling between the stator and the mover 2 within the stroke range, thereby completing the sliding of the mover 2 on the stator 1.
[0071] like Figures 5-6 As shown, magnetic pole 1-1 also includes hollow copper blocks, which are also installed in rectangular slots 1-3. The hollow copper blocks are spaced apart from the permanent magnets. Powering the hollow copper blocks generates a magnetic field that superimposes with the magnetic field of the permanent magnets, enhancing the magnetic field on stator 1. The hollow copper blocks on mover 2 generate a magnetic field, or the magnetic field generated by the hollow copper blocks is superimposed with the magnetic field of the permanent magnets, ensuring good electromagnetic coupling between stator 1 and mover 2 within the stroke range, thus enabling mover 2 to slide on stator 1. The advantage of this arrangement is that by setting permanent magnets and conductive blocks on stator 1, reverse control of mover 2 installed on stator 1 can be achieved. That is, when the conductive blocks on stator 1 are energized, mover 2 slides on stator 1 under the action of the magnetic field, improving the functionality of the linear motor.
[0072] Furthermore, the linear motor described above can also be understood as a U-shaped groove linear motor. The U-shaped groove linear motor has two parallel magnetic rails between metal plates, both facing the coil mover. The mover is supported by a guide rail system between the two magnetic rails. The mover is non-steel, which means there is no attraction and no interference force is generated between the magnetic rails and the thrust coil. The non-steel coil assembly has a small inertia and allows for very high acceleration. This design can better reduce magnetic flux leakage because the magnets are installed face-to-face in the U-shaped guide groove. This design also minimizes the damage caused by strong magnetic attraction.
[0073] Furthermore, the existing RYK Jiayi domestic linear motor small flat linear motor module slide table with multiple movers uses about 20 kg of copper, while this product uses about 14 catties of copper, meaning it saves 6 catties of copper. By installing a permanent magnet on mover 2, the copper used is reduced to about 12 catties, thus saving about 8 catties of copper. Under load conditions, the existing technology consumes 1 kWh per hour, while this product consumes 0.6 kWh per hour, meaning the motor saves 0.4 kWh per hour.
[0074] The conductive film assembly used in the linear motor of this product is the core component of the linear motor. After the structural upgrade of the linear motor with the conductive film assembly, the efficiency of the linear motor is improved. Because the conductive film assembly is thicker and has lower resistance, the energy lost due to heat in the wires is less, effectively reducing winding resistance and thus reducing copper loss.
[0075] In existing technologies, the insulated conductor is designed using the number of coil turns. This product improves the number of coil turns or flat wire by replacing it with a hollow conductive block that works in conjunction with a permanent magnet. This makes it easier for workers to assemble and disassemble the product, while also saving on the extra copper wire at both ends of the coil turns or flat wire. The combination of the permanent magnet and the conductive block enhances the magnetic field on the mover 2, which helps to improve the working efficiency of the linear motor.
[0076] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.
Claims
1. A linear motor actuator, characterized in that... The mover includes: Sliding components; A mounting groove is provided on the sliding component and is arranged along the length direction of the sliding component; A conductive module is installed in the mounting slot and is matched with and detachably disposed in the mounting slot; A conductive connector is installed on the conductive module.
2. The mover according to claim 1, characterized in that... The conductive module includes: A conductive medium is installed in the mounting groove, and the conductive connectors are located at both ends of the conductive medium.
3. The mover according to claim 2, characterized in that... The conductive medium is a conductive block, and the conductive connectors are located at both ends of the conductive block.
4. The mover according to claim 3, characterized in that... The conductive block is a copper block, preferably a hollow copper block, and the conductive connector is located at both ends of the hollow copper block.
5. The mover according to claim 2, characterized in that... The conductive module further includes: The motivational magnetic field is installed in the mounting slot, and is spaced apart from the conductive medium.
6. The mover according to claim 5, characterized in that... The motivational magnetic field is a permanent magnet.
7. The mover according to claim 2, characterized in that... The conductive connector is a conductive post.
8. The mover according to claim 1, characterized in that... The sliding component is a slider, and the mounting groove is disposed on the slider.
9. The mover according to claim 8, characterized in that... The sliding component includes: The slider is mounted on the U-shaped slide groove.
10. A linear motor, characterized in that... The motor includes: stator; A magnetic pole is disposed on the stator and along the length direction of the stator, and a mover as described in any one of claims 1 to 9 is disposed on the stator.
11. The motor according to claim 10, characterized in that... The magnetic poles are permanent magnets.
12. The motor according to claim 11, characterized in that... The magnetic poles include: Conductive blocks are spaced apart from the permanent magnets.
13. The mover according to claim 9, characterized in that... The U-shaped groove includes: The mounting through holes are arranged opposite to each other on the two vertical plates of the U-shaped slide and along the length of the vertical plates. The conductive film assembly is installed in the mounting through holes and is matched with and detachably disposed in the mounting through holes.
14. The mover according to claim 13, characterized in that... The U-shaped groove includes: A lower power connection cover plate is installed on the upright plate, and the lower end of the conductive film assembly is connected to the lower power connection cover plate; An on-board connection cover is installed on the horizontal plate of the U-shaped slide groove, and the upper end of the conductive film assembly is electrically connected to the on-board connection cover.
15. A linear motor, characterized in that... The motor includes: The stator is T-type; Magnetic poles are disposed opposite to each other on the vertical plate of the T-shaped stator and along the length direction of the vertical plate of the T-shaped stator, and the stator is provided with a mover as described in any one of claims 13 to 14.
16. The motor according to claim 15, characterized in that... The magnetic poles are permanent magnets.
17. The motor according to claim 15, characterized in that... The magnetic poles include: Conductive blocks are spaced apart from the permanent magnets.
18. The mover according to claim 8, characterized in that... The slider includes: A rectangular groove is disposed opposite to the slider and along the length direction of the slider. A conductive film assembly is installed in the rectangular groove and is matched with the rectangular groove and is detachably disposed in the rectangular groove.
19. The mover according to claim 18, characterized in that... The slider includes: A lower power connection cover plate is installed at the lower end of the slider, and the lower end of the conductive film assembly is connected to the lower power connection cover plate; An on-grip connection cover is installed on the upper end of the slider, and the upper end of the conductive film assembly is electrically connected to the on-grip connection cover.
20. A linear motor, characterized in that... The motor includes: The stator is U-shaped; Magnetic poles are disposed opposite to each other on two vertical plates of the U-shaped stator and arranged along the length direction of the U-shaped stator, and the U-shaped stator is provided with a mover as described in any one of claims 18 to 19.
21. The motor according to claim 20, characterized in that... The magnetic poles are permanent magnets.
22. The motor according to claim 21, characterized in that... The magnetic poles include: Conductive blocks are spaced apart from the permanent magnets.