Single drive linear motor

Abstract

The utility model relates to a kind of single-drive linear motor, comprising: shell and two stator units and two mover units installed in shell;Shell extends along the first direction;Stator unit includes two coils distributed along the first direction, coil can generate the magnetic pole extending along the first direction, and the magnetic pole generated by two coils is opposite;Mover unit includes three magnetic components distributed along the first direction, the magnetic pole of magnetic component extends along the second direction, and the magnetism of adjacent two magnetic components is opposite;Wherein, each stator unit corresponds one mover unit, the coil of two stator units is independently set and connected to respective electric control end;When working, the coil of each stator unit can be independently controlled and generate virtual magnetic pole close to corresponding magnetic component, to drive corresponding mover unit along the first direction independent reciprocating movement.The utility model increases the diversification of vibration parameter and vibration mode.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a single-drive linear motor. Background Technology

[0002] A linear motor is a device that directly converts electrical energy into linear motion without the need for an intermediate transmission mechanism. It has advantages such as simple structure, fast response, and high precision. Traditional linear motors often use a single coil driving a single mover design, but in scenarios requiring multiple degrees of freedom or independent control of multiple output shafts, this design suffers from problems such as complex structure, low control precision, and significant vibration interference.

[0003] However, existing linear motors still have some technical problems. First, traditional linear motors typically use a parallel coil design, with each coil sharing the same current parameter. This makes it impossible to achieve independent control of each coil, resulting in a single vibration mode and making it difficult to meet the diverse vibration parameter requirements of different application scenarios.

[0004] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a single-drive linear motor that overcomes the drawback of the single vibration mode of traditional linear motors and increases the diversity of vibration parameters and vibration modes.

[0006] To address the aforementioned problems, this utility model provides a self-driving linear motor, comprising: a housing and two stator units and two mover units installed within the housing; the housing extends along a first direction; each stator unit includes two coils distributed along the first direction, the coils generating magnetic poles extending along the first direction, and the magnetic poles generated by the two coils being opposite; each mover unit includes three magnetic components distributed along the first direction, the magnetic poles of the magnetic components extending along a second direction, and the magnetic properties of adjacent magnetic components being opposite; wherein, each stator unit corresponds to one mover unit, and the coils of the two stator units are independently configured and connected to their respective electrical control terminals; during operation, the coil of each stator unit can be independently controlled to generate virtual magnetic poles close to the corresponding magnetic components, thereby driving the corresponding mover unit to independently reciprocate along the first direction.

[0007] Preferably, the housing includes a housing body and two elastic mounting brackets; each elastic mounting bracket includes two elastic pieces and a mounting frame, the two elastic pieces are disposed on both sides of the housing body along a first direction, the two sides of the mounting frame are connected to the top ends of the two elastic pieces, the mounting frame is provided with a downward-facing receiving groove, and a mounting plate is provided at the opening of the receiving groove.

[0008] Preferably, the moving part further includes a magnetic plate, which is installed in the receiving groove and is used to mount the magnetic component.

[0009] Preferably, the stator unit further includes: a stator core fixed on the housing, and the coil wound on the stator core.

[0010] Preferably, the stator unit further includes a frame disposed between the stator core and the coil.

[0011] Preferably, the housing further includes a connecting member, through which two elastic mounting brackets are connected, the connecting member being arranged on both sides of the elastic mounting brackets along a first direction and spaced apart from the elastic mounting brackets to be elastically deformable.

[0012] Preferably, the connecting member is ring-shaped.

[0013] Preferably, the housing body has a first mounting hole for mounting the stator core.

[0014] Preferably, the coils of the two stator units can be independently controlled to drive the two mover units to reciprocate in opposite directions along the first direction.

[0015] Preferably, the mounting bracket is provided with a second mounting hole configured for mounting an output shaft assembly.

[0016] This utility model discloses a single-drive linear motor. By configuring two stator units, each stator unit includes two coils. The coils of these two stator units are independent of each other, which realizes independent adjustment of the coil current parameters of each stator unit. This enables precise control of the vibration mode, overcomes the drawback of the single vibration mode of traditional linear motors, and increases the diversity of vibration parameters and vibration modes.

[0017] The device of this invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the particular principles of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the single-drive linear motor according to the embodiment of this utility model;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 for Figure 1 An explosion diagram;

[0021] Figure 4 This is a schematic diagram of the shell body.

[0022] Figure 5 This is a schematic diagram of the shell body from another perspective;

[0023] Figure 6 This is a schematic diagram of the stator core structure;

[0024] Figure 7 This is a schematic diagram illustrating the working principle of the single-drive linear motor in the embodiment of this utility model. Figure 1 ;

[0025] Figure 8 This is a schematic diagram illustrating the working principle of the single-drive linear motor in the embodiment of this utility model. Figure 2 .

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Shell;

[0028] 110. Housing body; 111. Connecting component; 112. First mounting hole;

[0029] 120. Flexible mounting bracket;

[0030] 121. Elastic sheet;

[0031] 122. Mounting bracket; 123. Receiving groove; 124. Mounting plate; 125. Second mounting hole; 126. Positioning platform;

[0032] 130. Flexible mounting bracket;

[0033] 200, Stator unit; 201, Coil; 201A, Coil; 201B, Coil; 202, Stator core; 203, Frame; 204, Magnetic shoe section; 205, First inter-pole protrusion; 206, Second inter-pole protrusion;

[0034] 300. Stator unit;

[0035] 400. Moving element; 401. Magnetic component; 401A. Magnetic component; 401B. Magnetic component; 401C. Magnetic component; 402. Magnetic plate;

[0036] 500, Moving sub-unit.

[0037] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of this invention. The specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and environment in which they will be used.

[0038] Throughout these figures, the same reference numerals denote the same or equivalent parts of the present invention. Detailed Implementation

[0039] The present invention will now be described in detail with reference to various embodiments, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. Rather, the present invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0040] The following is combined with Figures 1 to 8 The single-drive linear motor of the present invention will be described.

[0041] refer to Figures 1 to 3 The single-drive linear motor of this utility model includes: a housing 100 and two stator units and two mover units installed inside the housing 100.

[0042] The housing 100 is along the first direction (i.e., Figures 1 to 3 The x-axis extends in the direction of extension and provides structural support and positioning reference for the entire independent drive linear motor.

[0043] Two stator units are installed within the housing 100, specifically including stator unit 200 and stator unit 300. Each stator unit includes two coils 201 distributed along a first direction. The coils 201 are capable of generating magnetic poles extending along the first direction, and the magnetic poles generated by the two coils 201 are opposite.

[0044] The two moving units specifically include moving unit 400 and moving unit 500. Each moving unit includes three magnetic components 401 distributed along a first direction, and the magnetic poles of the magnetic components 401 are along a second direction (i.e., Figures 1 to 3 The direction of extension of the y-axis extends, and the magnetism of two adjacent magnetic components is opposite. The second direction is perpendicular to the first direction.

[0045] Each stator unit corresponds to one moving unit, and the coils of the two stator units are independently set and connected to their respective electrical control terminals.

[0046] During operation, the coil 201 of each stator unit can be independently controlled to generate a virtual magnetic pole close to the corresponding magnetic component, thereby driving the corresponding moving unit to reciprocate independently along the first direction. That is, the control of the coil 201 of the moving unit 400 and the control of the coil 201 of the moving unit 500 are independent of each other.

[0047] This invention configures two stator units, each including two coils. The coils of these two stator units are independent of each other, enabling independent adjustment of the coil current parameters of each stator unit. This allows for precise control of the vibration mode, overcoming the drawback of the single vibration mode of traditional linear motors and increasing the diversity of vibration parameters and vibration modes.

[0048] Further, refer to Figure 4 and Figure 5 The housing 100 includes a housing body 110 and two elastic mounting brackets, the two elastic mounting brackets being elastic mounting bracket 120 and elastic mounting bracket 130.

[0049] The housing body 110 is used to support two flexible mounting brackets. The housing body 110 is generally plate-shaped and has a certain thickness.

[0050] Furthermore, the housing body 110 is preferably made of a high-strength, low-density material, such as aluminum alloy formed by die casting to balance strength and lightweight, or glass fiber reinforced engineering plastics to achieve greater design freedom and cost-effectiveness.

[0051] Further, refer to Figure 4 and Figure 5 The housing body 110 has a first mounting hole 112, which is used to mount the stator core 202 described later.

[0052] refer to Figure 4 and Figure 5 Each elastic mounting bracket includes two elastic pieces 121 and a mounting frame 122. The two elastic pieces 121 are disposed on both sides of the housing body 110 along a first direction. The two sides of the mounting frame 122 are connected to the top ends of the two elastic pieces 121. The mounting frame 122 is provided with a downward-facing receiving groove 123, and a mounting plate 124 is provided at the opening of the receiving groove 123. The receiving groove 123 and the mounting plate 124 are used to mount the magnetic plate 402, which will be described later.

[0053] The elastic sheet 121 exhibits high fatigue strength. Specifically, the elastic sheet 121 can withstand up to 10 fatigue cycles. 7 More than once.

[0054] The elastic sheet 121 can be made of a special alloy with excellent corrosion resistance, such as beryllium bronze or stainless steel.

[0055] In one embodiment, the elastic sheet 121 and the housing body 110 are integrally formed. In another embodiment, the elastic sheet 121 can be mounted on the housing body 110 by welding or bonding.

[0056] For the same elastic mounting bracket, when the moving subunit drives the mounting bracket 122 to move along the first direction, the two elastic plates 121 will undergo synchronous elastic deformation. When the driving force received by the moving subunit is removed or reversed, the elastic deformation can assist the moving subunit to quickly return to the equilibrium position or accelerate to move in the opposite direction.

[0057] Further, refer to Figure 1 , Figure 2 and Figure 4 The housing 100 further includes a connecting member 111, which connects the two elastic mounting brackets. The connecting member 111 is arranged on both sides of the elastic mounting bracket along the first direction and is spaced apart from the elastic mounting bracket so that it can be elastically deformed.

[0058] Specifically, in the first direction (i.e., Figure 4 On the x-axis extension direction, the elastic mounting bracket 120 and the elastic mounting bracket 130 are located between the two connecting members 111.

[0059] The connecting member 111 provides the elastic force required for the resilient mounting bracket to reset and change direction, enabling it to quickly change direction. Without the connecting member 111, while the resilient mounting bracket can still reset, relying solely on its own elasticity for direction change may not guarantee timeliness. The connecting member 111 effectively reduces the swing amplitude of the resilient mounting bracket, thus promoting timely direction change when it reaches its limit position to maintain its swing motion. If two resilient mounting brackets move synchronously in opposite directions, the deformation of the connecting member 111 reaches its maximum when they each reach their maximum position, resulting in a corresponding increase in elastic force, which effectively drives each bracket to change direction and return to its original position.

[0060] Further, refer to Figure 4 The connecting component 111 is ring-shaped.

[0061] exist Figure 4 In the implementation scheme, the connecting member 111 is ring-shaped, and the ring shape can improve the elastic deformation capacity of the connecting member 111.

[0062] The connecting component 111 is not limited to a ring shape; it can be flexibly designed into various forms such as strip or wave shape according to different actual needs and application scenarios.

[0063] The connecting component 111 can be made of an elastic material, such as an engineering plastic with good elasticity, or a metal material such as phosphor bronze, beryllium copper or stainless steel.

[0064] In one embodiment, the connecting member 111 and the flexible mounting bracket may be connected by means of welding, riveting, or snap-fitting. In another embodiment, the connecting member 111 and the flexible mounting bracket are integrally formed.

[0065] Further, refer to Figure 2 The moving part further includes a magnetic plate 402, which is installed in the receiving groove 123 and is used to install the magnetic component 401. The magnetic plate 402 is preferably a plate-shaped structure, whose shape is adapted to the receiving groove 123 on the mounting frame 122, and is fixedly installed in the receiving groove 123 by means of bonding, snap-fit ​​or interference fit.

[0066] More specifically, the magnetic guide plate 402 provides a stable and reliable mounting base for the magnetic component 401. The magnetic component 401 can be fixed to the side of the magnetic guide plate 402 facing the stator unit by means of adhesive bonding, embedding, or other methods. Furthermore, as part of the magnetic circuit, the magnetic guide plate 402 effectively converges and guides the magnetic lines of force generated by the magnetic component 401, reducing the magnetic reluctance of the magnetic circuit, thereby enhancing the magnetic field strength in the working air gap and increasing the electromagnetic thrust density of the motor.

[0067] The magnetic plate 402 is made of a soft magnetic material with good magnetic permeability, such as electrical pure iron, silicon steel sheet or soft magnetic composite material.

[0068] Specifically, the magnetic plate 402 is supported by the mounting plate 124.

[0069] In an exemplary embodiment, coil 201 is made of high-strength enameled copper wire.

[0070] Further, refer to Figures 1 to 3 The stator unit further includes a stator core 202, which is fixed on the housing 100. A coil 201 is wound around the stator core 202 to form an effective electromagnetic induction structure.

[0071] The stator core 202 is preferably a stacked structure made of multiple silicon steel sheets stacked along the axial direction to effectively reduce eddy current losses.

[0072] Specifically, the stator core 202 is installed at the first mounting hole 112 of the housing body 110.

[0073] Further, refer to Figure 6 The stator core 202 has a magnetic shoe portion 204 facing the magnetic member 401, and the magnetic shoe portion 204 extends along a second direction. The magnetic shoe portion 204 can guide and optimize the magnetic flux path. The coil 201 is sleeved on the magnetic shoe portion 204. In addition, the stator core 202 has two inter-pole protrusions facing the magnetic member 401, specifically including a first inter-pole protrusion 205 and a second inter-pole protrusion 206. In the first direction, the two inter-pole protrusions are located on both sides of the magnetic shoe portion 204.

[0074] Further, refer to Figure 2 and Figure 3 The stator unit further includes a frame 203, which is disposed between the stator core 202 and the coil 201. This structurally isolates the metallic stator core 202 from the conductive coil 201, preventing breakdown or short circuits between the coil 201 and the stator core 202, thus ensuring electrical safety between the windings. Furthermore, the frame 203 provides winding space and support for the coil 201, ensuring the consistency and neatness of the windings. This not only improves space utilization but also effectively reduces additional electromagnetic vibration and noise caused by loose windings, thereby enhancing the stability and reliability of the motor operation. The frame 203 is made of insulating material.

[0075] The skeleton 203 can be integrally formed onto the stator core 202 by overmolding, or it can be fitted onto the stator core 202 as an independent component.

[0076] Furthermore, the frame 203 is provided with terminals or lead slots, which makes it easier to lead out the end of the coil 201 and to make a stable and efficient connection with external wires, thereby improving the connection reliability and ease of operation of the overall device.

[0077] Furthermore, the coils 201 of each of the two stator units can be independently controlled to drive the two moving units to reciprocate in opposite directions along the first direction.

[0078] The term "coil 201" as used in this article refers to the fact that coil 201 of one stator unit and coil 201 of another stator unit are independent of each other. However, two coils 201 of the same stator unit can be independent of each other or controlled in a unified manner.

[0079] In one embodiment, two stator units correspond to two electrical control terminals. Two coils 201 of the same stator unit are connected in series to the same electrical control terminal, which simultaneously controls the two coils 201 of the same stator unit. The two coils 201 of the same stator unit have opposite helical directions, such that under current control in the same direction, the magnetic poles generated by the two coils 201 of the same stator unit are opposite.

[0080] In another embodiment, two stator units correspond to four electrical control terminals, that is, one stator unit is connected to two electrical control terminals. The two coils 201 of the same stator unit are independent and not connected to each other, and the two coils 201 have the same helical direction and receive current in opposite directions, so that the magnetic poles generated by the two coils 201 of the same stator unit are opposite.

[0081] Further, refer to Figure 4 The mounting bracket 122 is provided with a second mounting hole 125, which is configured for mounting the output shaft assembly. The second mounting hole 125 allows manufacturers to easily install the output shaft assembly according to their needs. The output shaft assembly is not shown in the figure.

[0082] Further, refer to Figure 4 The mounting bracket 122 is provided with positioning platforms 126, and there are four positioning platforms 126. The output shaft assembly is mounted on a positioning plate (not shown in the figure), which is mounted on the mounting bracket 122 by bolts and the engagement of a second mounting hole 125, and is defined by the four positioning platforms 126. When the output shaft assembly is mounted on the mounting bracket 122 via the positioning plate, the output shaft assembly extends in a second direction, that is, perpendicular to the mounting bracket 122. When the moving part reciprocates, the output shaft assembly generates high-frequency vibration, which can be applied to the motion pattern of a toothbrush.

[0083] The positioning stage 126 and the second mounting hole 125 can, to a certain extent, prevent any micro-movement or rotation that may occur in the output shaft assembly under long-term vibration environment, ensuring that the output direction is not disordered.

[0084] A mounting bracket 122 mounts one output shaft assembly to mount two independent output shaft assemblies, which allows the vibration mode of the output shaft assembly to be controlled individually, thereby meeting the vibration parameter requirements of different customers (such as electric toothbrush manufacturers).

[0085] The operation of the single-drive linear motor of this utility model embodiment will be described below with reference to the accompanying drawings.

[0086] refer to Figure 7 and Figure 8 Within the same moving unit, three magnetic components 401 include magnetic component 401A, magnetic component 401B, and magnetic component 401C. The S pole of magnetic component 401A faces the stator unit, the N pole of magnetic component 401B faces the stator unit, and the S pole of magnetic component 401C faces the stator unit. Two coils 201 include coil 201A and coil 201B.

[0087] The direction of the virtual magnetic pole generated by the coil 201 can be changed by changing the direction of the current in the coil 201. The coil 201 generates a single magnetic pole on the magnetic shoe 204. The first pole protrusion 205 and the second pole protrusion 206, which are not fitted with the coil 201, are magnetized because they are in the magnetic field, and thus form corresponding magnetic poles.

[0088] exist Figure 7 In the design, the virtual magnetic pole generated by coil 201A is the N pole, and the first inter-pole protrusion 205 forms the S pole. The virtual magnetic pole generated by coil 201B is the S pole, and the second inter-pole protrusion 206 forms the N pole. Under the influence of like poles repelling and unlike poles attracting, the S pole formed by the first inter-pole protrusion 205 and the magnetic component 401A generate a repulsive force, pushing the magnetic component 401A to move along the positive direction (positive x-axis). The virtual magnetic pole generated by coil 201A and the magnetic component 401A generate a magnetic attraction force, pulling the magnetic component 401A to move along the positive direction (positive x-axis). The virtual magnetic pole generated by coil 201A and the magnetic component 401B generate a repulsive force, pushing the magnetic component 401B to move along the positive direction (positive x-axis). The virtual magnetic pole generated by coil 201B creates a magnetic attraction force between itself and magnetic component 401B, pulling magnetic component 401B to move along the positive direction (positive x-axis). The virtual magnetic pole generated by coil 201B creates a repulsive force between itself and magnetic component 401C, pushing magnetic component 401C to move along the positive direction (positive x-axis). The N pole formed by the second pole protrusion 206 creates a magnetic attraction force between itself and magnetic component 401C, pulling magnetic component 401C to move along the positive direction (positive x-axis). During the movement of magnetic component 401 along the positive direction, it drives the mounting bracket 122 to move along the positive direction, thereby driving the connected output shaft assembly to move in the positive direction. This causes the elastic sheet 121 and connecting component 111 to undergo elastic deformation in the positive direction of the first direction.

[0089] When the moving unit approaches its maximum forward stroke, the electrical control terminal precisely cuts off or reverses the current in coil 201. At this time, the force between the magnetic poles disappears or reverses. Under the influence of inertia, the moving unit still tends to continue moving in the forward direction. The elastic sheet 121 and the connecting member 111, which are in an elastic deformation state, jointly apply a negative elastic force to the moving unit in the first direction. This elastic force can stop the moving unit from moving forward in the first direction and pull the moving unit in the opposite direction.

[0090] exist Figure 8In the design, the virtual magnetic pole generated by coil 201A is the S pole, and the first inter-pole protrusion 205 forms the N pole. The virtual magnetic pole generated by coil 201B is the N pole, and the second inter-pole protrusion 206 forms the S pole. Under the influence of like poles repelling and unlike poles attracting, the N pole formed by the first inter-pole protrusion 205 and the magnetic component 401A generate a magnetic attraction force, pulling the magnetic component 401A to move along the negative direction of the first direction (negative x-axis). The virtual magnetic pole generated by coil 201A and the magnetic component 401A generate a repulsive force, pushing the magnetic component 401A to move along the negative direction of the first direction (negative x-axis). The virtual magnetic pole generated by coil 201A and the magnetic component 401B generate a magnetic attraction force, pulling the magnetic component 401B to move along the negative direction of the first direction (negative x-axis). The virtual magnetic pole generated by coil 201B and the magnetic component 401B generate a repulsive force, pushing the magnetic component 401B to move along the negative direction (negative x-axis) of the first direction. The virtual magnetic pole generated by coil 201B and the magnetic component 401C generate a magnetic attraction force, pulling the magnetic component 401C to move along the negative direction (negative x-axis) of the first direction. The S pole formed by the second pole protrusion 206 generates a repulsive force with the magnetic component 401C, pushing the magnetic component 401C to move along the negative direction (negative x-axis) of the first direction. During the movement of the magnetic component 401 along the negative direction of the first direction, it drives the mounting bracket 122 to move along the negative direction of the first direction, thereby driving the connected output shaft assembly to move in the negative direction of the first direction. This causes the elastic sheet 121 and the connecting member 111 to undergo elastic deformation in the negative direction of the first direction.

[0091] When the moving unit approaches its maximum negative stroke, the electrical control terminal precisely cuts off or reverses the current in coil 201. At this time, the force between the magnetic poles disappears or reverses. Under the influence of inertia, the moving unit still tends to continue moving in the negative direction. The elastic sheet 121 and the connecting member 111, which are in an elastic deformation state, jointly apply a positive elastic force to the moving unit in the first direction. This elastic force can stop the moving unit from moving in the negative direction in the first direction and pull the moving unit in the opposite direction.

[0092] Thus, within the same stator unit, by periodically changing the direction of the current flowing into the coil, the direction of the virtual magnetic poles generated by the coil 201 on the stator core 202 can be alternately changed, thereby causing the mover unit to periodically reciprocate in the first direction.

[0093] By controlling the direction of the current applied to the two coils 201 of the stator unit 200 and the two coils 201 of the stator unit 300 through the electrical control terminal, the moving unit 400 and the moving unit 500 move in opposite directions along the first direction, so as to make use of the force between them to increase the vibration intensity.

[0094] The four-coil independently driven linear motor of this invention can be applied to multiple fields and scenarios, including but not limited to:

[0095] (1) Personal care appliances, such as electric toothbrushes, shavers and facial cleansing devices.

[0096] (2) Medical and health equipment, such as medical massagers, fascia guns and dental cleaning equipment.

[0097] (3) In the field of consumer electronics, including force feedback elements in game controllers, virtual reality gloves, and haptic feedback generators used in wearable devices.

[0098] (4) Precision instruments and industrial automation, such as the micro-amplitude high-frequency shaking mechanism required for anti-sticking of optical components, the micro-drive unit in the vibratory feeder, and the piston drive source in small pump equipment.

[0099] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “above,” “below,” “above,” “below,” “upward,” “downward,” “front,” “back,” “behind,” “inner side,” “outer side,” “inward,” “outer,” “internal,” “external,” “inner,” “external,” “forward,” and “backward” are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0100] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; obviously, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A direct drive linear motor, characterized by, include: The housing and two stator units and two mover units installed within the housing; The housing extends along a first direction; The stator unit includes two coils distributed along a first direction, the coils being capable of generating magnetic poles extending along the first direction, and the magnetic poles generated by the two coils being opposite. The moving unit includes three magnetic components distributed along a first direction, the magnetic poles of the magnetic components extending along a second direction, and the magnetic properties of adjacent magnetic components being opposite. Each stator unit corresponds to one moving unit, and the coils of the two stator units are independently set and connected to their respective electrical control terminals; During operation, the coil of each stator unit can be independently controlled to generate a virtual magnetic pole close to the corresponding magnetic component, thereby driving the corresponding mover unit to move independently back and forth along the first direction.

2. The direct drive linear motor of claim 1, wherein, The housing includes a housing body and two flexible mounting brackets; Each elastic mounting bracket includes two elastic plates and a mounting frame. The two elastic plates are disposed on both sides of the housing body along a first direction. The two sides of the mounting frame are connected to the top of the two elastic plates. The mounting frame is provided with a downward-facing receiving groove, and a mounting plate is provided at the opening of the receiving groove.

3. The direct drive linear motor of claim 2, wherein, The moving part further includes a magnetic plate, which is installed in the receiving groove and is used to mount the magnetic component.

4. The single-drive linear motor according to claim 2, characterized in that, The stator unit further includes: The stator core is fixed to the housing, and the coil is wound around the stator core.

5. The single-drive linear motor according to claim 4, characterized in that, The stator unit further includes: A frame is disposed between the stator core and the coil.

6. The direct drive linear motor of claim 2, wherein, The housing further includes: A connecting member is provided between two elastic mounting brackets. The connecting member is arranged on both sides of the elastic mounting bracket along a first direction and is spaced apart from the elastic mounting bracket so that it can elastically deform.

7. The direct drive linear motor of claim 6, wherein, The connecting member is ring-shaped.

8. The direct drive linear motor of claim 4, wherein, The housing body has a first mounting hole for mounting the stator core.

9. The direct drive linear motor of claim 4, wherein, The coils of each of the two stator units can be independently controlled to drive the two mover units to reciprocate in opposite directions along the first direction.

10. The single-drive linear motor according to claim 2, characterized in that, The mounting bracket is provided with a second mounting hole configured for mounting an output shaft assembly.

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