Primary assembly, motor, suspension and vehicle

Abstract

The invention discloses a primary assembly, a motor, a suspension and a vehicle, a stator assembly comprises a yoke portion and at least one tooth portion, the tooth portion is connected with the yoke portion, the material of at least one of the tooth portion and the yoke portion comprises a first material portion and a second material portion, the material of the first material portion is different from the material of the second material portion, and the material of the second material portion is different from that of the first material portion. And the first material part is made of a high-permeability material. Therefore, the first material part and the second material part are applied to the tooth part and the yoke part of the primary assembly, the first material part is made of a high-magnetic-conductivity material, high magnetic conductivity of the primary assembly can be ensured, magnetic resistance is effectively reduced, the power generation efficiency of the motor is improved, and meanwhile, due to the fact that the materials of the yoke part and the tooth part are not completely the same, on the premise that the first material part is arranged, the magnetic resistance is effectively reduced. And in combination with the arrangement of the second material part, the magnetic saturation phenomenon of the primary assembly can be avoided, and the loss of the primary assembly is reduced, so that the working efficiency of the motor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a primary component, a motor, a suspension and a vehicle. Background Art

[0002] In the existing technology, the motor stator uses composite soft magnetic materials to make soft magnetic cores. Although it can effectively reduce the eddy current loss of the stator core and reduce the heat generation of the stator, the magnetic properties of the composite soft magnetic materials themselves, such as relative magnetic permeability and saturation magnetic flux density, are still significantly different from those of pure iron cores such as DT4. Directly using composite soft magnetic materials without changing the structure will reduce the thrust of the linear motor, thereby reducing the thrust density and efficiency of the motor. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, a first object of the present invention is to provide a primary assembly that reduces primary assembly losses and increases primary assembly thrust.

[0004] A second object of the present invention is to provide a motor comprising the primary assembly and the secondary assembly described in the above embodiment.

[0005] A third object of the present invention is to provide a suspension comprising the primary assembly or the motor described in the above embodiments.

[0006] A fourth object of the present invention is to provide a vehicle comprising the primary component, the motor or the suspension described in the above embodiments.

[0007] According to an embodiment of the first aspect of the present invention, the primary component includes: a yoke and at least one tooth portion, wherein the tooth portion is connected to the yoke portion, and the material of at least one of the tooth portion and the yoke portion includes a first material portion and a second material portion, and the materials of the first material portion and the second material portion are different, and the first material portion is a high magnetic permeability material.

[0008] According to the primary component of an embodiment of the present invention, by applying the first material part and the second material part to the tooth part and the yoke part of the primary component, the first material part is a high magnetic permeability material, which can ensure the high magnetic permeability of the primary component, effectively reduce the magnetic resistance, and improve the power generation efficiency of the motor. At the same time, since the materials of the yoke part and the tooth part are not exactly the same, that is, under the premise of setting the first material part, the thrust of the primary component is improved. Combined with the setting of the second material part, the magnetic saturation phenomenon of the primary component can be avoided, the loss of the primary component can be reduced, and the working efficiency of the motor can be improved.

[0009] In some embodiments, the yoke portion includes: a first connecting portion and a second connecting portion, the first connecting portion being connected to one side of the second direction of the tooth portion; the second connecting portion being connected between the first connecting portion and the tooth portion, the second connecting portion being located at the end of the tooth portion, and the material of at least one of the first connecting portion and the second connecting portion being the first material portion.

[0010] In some embodiments, the first connecting portion is a first material portion.

[0011] In some embodiments, the second connecting portion and the tooth portion are second material portions.

[0012] In some embodiments, the second material portion is a soft magnetic composite material.

[0013] In some embodiments, there are multiple yoke parts and multiple tooth parts, the first connecting parts and the second connecting parts of the multiple yoke parts are alternately connected, the multiple teeth parts are respectively connected to the multiple second connecting parts, and the multiple teeth parts are located at the same end of the multiple second connecting parts.

[0014] In some embodiments, the second material portion is disposed on an outer peripheral side of the first material portion, and the magnetic permeability of the second material portion is smaller than the magnetic permeability of the first material portion.

[0015] In some embodiments, the tooth portion includes the first material portion and the second material portion, and the first material portion passes through at least one end of the second material portion along the first direction.

[0016] In some embodiments, the width of the first material portion along the first direction is X, the width of the second material portion along the first direction is Y, the electromagnetic thrust of the primary assembly is F, and X, Y, and F satisfy: F=Z 1+ 21.25X / Y-0.1X 2 / Y 2 , where Z1>0.

[0017] In some embodiments, the width of the first material portion along the first direction is X, the width of the second material portion along the first direction is Y, the iron loss value of the primary component is L, and L, X, and Y satisfy: L=0.67X 2 / Y 2 +5X 2 / Y 2 +Z2, where Z2>0.

[0018] In some embodiments, the yoke and the teeth are formed as an integral part.

[0019] In some embodiments, the first material portion is pure iron or cobalt iron.

[0020] According to an embodiment of the second aspect of the present invention, the motor includes: a primary component and a secondary component, wherein the primary component is the primary component according to the embodiment of the first aspect of the present invention; the secondary component is arranged on a side of the primary component adjacent to the tooth portion of the primary component, and the secondary component is movable relative to the primary component.

[0021] The suspension according to the third embodiment of the present invention comprises the primary assembly according to the first embodiment of the present invention, or the motor according to the second embodiment of the present invention.

[0022] The vehicle according to the fourth embodiment of the present invention includes the primary component according to the first embodiment of the present invention, the motor according to the second embodiment of the present invention, or the suspension according to the third embodiment of the present invention.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 is a schematic diagram of a primary assembly and a secondary assembly according to an embodiment of the present invention; Figure 2 is a schematic diagram of a primary assembly according to an embodiment of the present invention; Figure 3 is a schematic diagram of another embodiment of a primary assembly according to an embodiment of the present invention; Figure 4 is a schematic diagram comparing the magnetic properties of the first material portion and the second material portion according to an embodiment of the present invention; Figure 5 is a schematic diagram of thrust of primary components of different materials at different currents according to an embodiment of the present invention; Figure 6 Schematic diagram of the influence of X / Y on electromagnetic thrust and iron loss according to an embodiment of the present invention.

[0025] Reference numerals: 100, primary components; 10. Yoke; 11. First connecting portion; 12. Second connecting portion; 13. Tooth portion; 14. First material portion; 15. Second material portion; 20. Secondary components; 21. Windings; A. First direction; B. Second direction. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-6 The primary assembly 100 according to an embodiment of the present invention is described, comprising a yoke 10 and at least one tooth 13. The primary assembly 100 has a first direction A and a second direction B.

[0027] Specifically, if Figure 1-Figure 3 As shown, the tooth portion 13 is connected to the yoke portion 10, and the material of at least one of the tooth portion 13 and the yoke portion 10 includes a first material portion 14 and a second material portion 15, and the materials of the first material portion 14 and the second material portion 15 are different, such as the magnetic permeabilities of the first material portion 14 and the second material portion 15 are different, wherein the first material portion 14 is a high magnetic permeability material.

[0028] Combine Figure 1 and Figure 2 The yoke 10 of the primary assembly 100 is adapted to connect to the teeth 13, forming a magnetic flux path that helps support the entire primary assembly 100. The teeth 13 are used to cooperate with the winding 21. When current passes through the winding 21, a magnetic field is generated. The main function of the teeth 13 is to increase the magnetic flux density, thereby improving the power generation efficiency of the motor. The winding 21 is a coil. High magnetic permeability material refers to a ferromagnetic material with a magnetic permeability of approximately 100 or greater, also known as a soft magnetic material. In this embodiment, the high magnetic permeability material can be a material such as pure iron or cobalt iron. High magnetic permeability materials have properties such as high magnetic permeability, high saturation magnetic induction intensity, high resistance, low loss, and good stability. The second material portion 15 is a material with lower magnetic permeability than the high magnetic permeability material of the first material portion 14. The teeth 13 of the primary assembly 100 can all be the first material portion 14, and the yoke 10 can be composed of the first material portion 14 and the second material portion 15.

[0029] According to the primary component 100 of an embodiment of the present invention, by applying the first material part 14 and the second material part 15 to the tooth part 13 and the yoke part 10 of the primary component 100, the first material part 14 is a high magnetic permeability material, which can ensure the high magnetic permeability of the primary component 100, effectively reduce the magnetic resistance, and improve the power generation efficiency of the motor. At the same time, since the materials of the yoke part 10 and the tooth part 13 are not exactly the same, that is, under the premise of setting the first material part 14, the thrust of the primary component 100 is improved. Combined with the setting of the second material part 15, the magnetic saturation phenomenon of the primary component 100 can be avoided, the loss of the primary component 100 can be reduced, and the working efficiency of the motor can be improved.

[0030] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the yoke 10 includes: a first connecting portion 11 and a second connecting portion 12, the first connecting portion 11 is connected to one side of the second direction B of the tooth portion 13; the second connecting portion 12 is connected between the first connecting portion 11 and the tooth portion 13, and the second connecting portion 12 is located at the end of the tooth portion 13, and the material of at least one of the first connecting portion 11 and the second connecting portion 12 is the first material portion 14.

[0031] The yoke 10 extends along a first direction A of the primary assembly 100. The first connecting portion 11 and the second connecting portion 12 extend along the first direction A of the primary assembly 100. The first connecting portion 11 and the second connecting portion 12 are connected to each other along the first direction A. One end of the second connecting portion 12 along the second direction B is connected to the tooth portion 13. The tooth portion 13 extends along the second direction B of the primary assembly 100. One end of the tooth portion 13 along the second direction B is connected to one end of the second connecting portion 12. The other end of the tooth portion 13 extends away from the second connecting portion 12 along the second direction B. At least one of the first connecting portion 11 and the second connecting portion 12 is made of the first material portion 14. That is, the first connecting portion 11 is made of the first material portion 14, the second connecting portion 12 is made of the first material portion 14, or both the first connecting portion 11 and the second connecting portion 12 are made of the first material portion 14.

[0032] Therefore, the design of the first connecting part 11 and the second connecting part 12 is suitable for optimizing the magnetic flux path. By using high magnetic permeability materials, the magnetic resistance can be effectively reduced, thereby increasing the magnetic flux density, reducing the energy loss of the primary component 100, optimizing the performance of the primary component 100, and thus improving the efficiency of the motor.

[0033] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the first connecting portion 11 is the first material portion 14 .

[0034] In some embodiments, first connecting portion 11 is made of first material portion 14, i.e., a high-permeability material. First connecting portion 11 plays a key role in optimizing the magnetic flux path within primary assembly 100, ensuring the magnetic flux density of primary assembly 100 and enabling a motor using primary assembly 100 to output greater thrust, thereby improving the motor's output efficiency.

[0035] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the second connecting portion 12 and the tooth portion 13 constitute the second material portion 15 .

[0036] The second connecting portion 12 and the teeth 13 are made of the second material 15. In some embodiments, when the primary assembly 100 is exposed to high current, the magnetic density of the teeth 13 of the primary assembly 100 is high. If magnetic saturation is achieved, the thrust of the primary assembly 100 will decrease. The second connecting portion 12 and the teeth 13 are made of the second material 15 to reduce the magnetic flux density of the second connecting portion 12 and the teeth 13, preventing the teeth 13 from reaching magnetic saturation and ensuring the thrust of the primary assembly 100.

[0037] Therefore, the selection of the second material portion 15 facilitates avoiding magnetic saturation, ensuring the thrust of the primary assembly 100 , and reducing the loss of the primary assembly 100 , thereby improving the overall efficiency of the motor.

[0038] According to some embodiments of the present invention, the second material portion 15 is a soft magnetic composite material.

[0039] Soft magnetic material refers to a material that is magnetized when Hc is not greater than 1000A / m. Such a material is called a soft magnet. Composite soft magnetic material is made by wrapping iron powder with insulating material and then pressing it. It has the characteristics of high resistivity. Soft magnetic composite material is a material with good magnetic properties and certain mechanical strength. However, due to the material itself and the pressing process, its saturation magnetic density, magnetic permeability and other magnetic properties are weaker than those of common iron core materials such as electrical pure iron. The comparison of the magnetic properties of the second material part 15 with the magnetic properties of the first material part 14 is as follows: Figure 4 As shown, the magnetic properties of the first material portion 14 are higher than the magnetic properties of the second material portion 15 .

[0040] Thus, by using a high-permeability material for the first connecting portion 11, the smooth flow of magnetic flux is ensured, magnetic resistance is reduced, and thus eddy current losses and other magnetic losses are reduced. The second connecting portion 12 and the tooth portion 13 are made of a soft magnetic composite material. The magnetic permeability of the soft magnetic composite material is lower than that of the first material portion 14. This prevents magnetic saturation in the tooth portion 13 while maintaining a good magnetic flux density, thus achieving good electromagnetic performance for the primary assembly 100 and helping to maintain the thrust and efficiency of the primary assembly 100.

[0041] According to some embodiments of the present invention, Figure 1 As shown, there are multiple yokes 10 and multiple teeth 13. The first connecting portions 11 and the second connecting portions 12 of the multiple yokes 10 are alternately connected to each other. The multiple teeth 13 are respectively connected to the multiple second connecting portions 12, and the multiple teeth 13 are located at the same end of the multiple second connecting portions 12. The multiple yokes 10 are connected to each other, and the multiple yokes 10 are respectively connected to the multiple teeth 13 in a one-to-one correspondence. The teeth 13 extend along the second direction B of the primary assembly 100. One end of the tooth 13 along the second direction B is connected to one end of the second connecting portion 12. The multiple yokes 10 are connected to each other along the first direction A to form the primary assembly 100.

[0042] Thus, the design of multiple yokes 10 and teeth 13 can better optimize the magnetic circuit and ensure that the magnetic flux is evenly distributed between various parts. Multiple yokes 10 are connected to each other to provide higher mechanical strength and stability.

[0043] According to some embodiments of the present invention, Figure 3 As shown, the second material portion 15 is provided on the outer peripheral side of the first material portion 14 , and the magnetic permeability of the second material portion 15 is lower than that of the first material portion 14 .

[0044] In some embodiments, the first material portion 14 is used as the inner layer structure in the tooth portion 13, and the second material portion 15 is used as the outer layer structure; or the yoke portion 10 uses the first material portion 14 as the inner layer structure, and the second material portion 15 is used as the outer layer structure; or both the tooth portion 13 and the yoke portion 10 use the first material portion 14 as the inner layer structure, and the second material portion 15 as the outer layer structure.

[0045] At different currents, the thrust changes of the primary assembly 100 when only the second material portion 15 is applied and the primary assembly 100 when both the first material portion 14 and the second material portion 15 are applied are compared. Figure 5 As shown, the thrust of primary assembly 100 increases with increasing current. For example, when the current is 40A, the thrust of primary assembly 100 using both first and second material portions 14, 15 is 3000N, while the thrust of primary assembly 100 using only second material portion 15 is 2600N. When the current is 60A, the thrust of primary assembly 100 using both first and second material portions 14, 15 is 4500N, while the thrust of primary assembly 100 using only second material portion 15 is 3500N. The thrust of primary assembly 100 using both first and second material portions 14, 15 is greater than the thrust of primary assembly 100 using only second material portion 15.

[0046] Therefore, the first material part 14 can provide high magnetic permeability to ensure high magnetic permeability of the tooth part 13 and the yoke part 10, while the second material part 15 with lower magnetic permeability is used to prevent the tooth part 13 of the primary component 100 from reaching magnetic saturation. By simultaneously applying the first material part 14 and the second material part 15, the primary component 100 can effectively improve the thrust of the primary component 100, reduce the loss of the primary component 100, and improve the working efficiency of the motor.

[0047] According to some embodiments of the present invention, Figure 3 As shown, the tooth portion 13 includes a first material portion 14 and a second material portion 15 , and the first material portion 14 passes through at least one end of the second material portion 15 along a first direction A of the second material portion 15 .

[0048] In some embodiments, when primary assembly 100 is operating at high current, the magnetic density of tooth 13 is high. If magnetic saturation is achieved, this can result in a decrease in thrust. Tooth 13 comprises a first material portion 14 and a second material portion 15. Second material portion 15 is positioned outside first material portion 14. First material portion 14 can be composed of several small strips or bars of high-permeability material, extending along the length of second material portion 15 to form an embedded structure.

[0049] Therefore, the structural design of the tooth portion 13 can optimize the magnetic flux path, reduce magnetic resistance and loss, improve thrust output, and ensure the efficiency of the motor without significantly reducing the material resistivity.

[0050] According to some embodiments of the present invention, Figure 6 As shown, the width of the first material portion 14 along the first direction A is X, the width of the second material portion 15 along the first direction A is Y, the electromagnetic thrust of the primary assembly 100 is F, and X, Y, and F satisfy: F=Z 1+ 21.25X / Y-0.1X 2 / Y 2 , where Z1>0.

[0051] The width of the first material portion 14 and the width of the second material portion 15 are the lengths of the first material portion 14 and the second material portion 15 in the first direction A of the primary assembly 100. The electromagnetic thrust F is related to the width ratio X / Y of the first material portion 14 and the second material portion 15, and is also affected by X 2 / Y 2 Among them, Z1 is a constant value, which represents the basic thrust value and is not affected by the change of the material width ratio. 21.25X / Y means that as the X / Y ratio increases, the thrust F will also increase, that is, the increase in the width X of the first material part 14 relative to the width Y of the second material part 15 will lead to an increase in thrust. -0.1X 2 / Y 2 It means that as the X / Y ratio increases, the thrust F will decrease due to the negative value of the quadratic term, that is, when the X / Y ratio is too large, the thrust F will decrease. When X / Y is small, the increase of X / Y will significantly increase the thrust F. When X / Y is large, the quadratic term -0.1X 2 / Y 2 The effect of the force becomes larger, resulting in a reduction in thrust.

[0052] According to some embodiments of the present invention, Figure 6 As shown, the width of the first material portion 14 along the first direction A is X, the width of the second material portion 15 along the first direction A is Y, and the iron loss value of the primary component 100 is L, and L, X, and Y satisfy: L=0.67X 2 / Y 2 +5X 2 / Y2 +Z2, where Z2>0.

[0053] The iron loss value refers to the sum of the hysteresis loss and eddy current loss caused by the magnetic flux in the iron core of the generator or transformer. The iron loss value L of the primary component 100 is related to the width ratio X / Y of the first material portion 14 and the second material portion 15, and is affected by X 2 / Y 2 Among them, Z2 is a constant value, which represents the basic iron loss value and is not affected by the change of material width ratio. 2 / Y 2 +5X 2 / Y 2 This indicates that as the X / Y ratio increases, the iron loss value L will also increase, that is, an increase in the width X of the first material portion 14 relative to the width Y of the second material portion 15 will lead to an increase in the iron loss value.

[0054] Take Z1=4000N, Z2=200N as an example, combined with Figure 6 When X / Y is large, electromagnetic thrust F is large, but iron loss L is also large. When X / Y is small, iron loss L is small, but electromagnetic thrust F is also small. Preferably, when X / Y is between 35% and 55%, the electromagnetic thrust of primary assembly 100 can be largely maintained while controlling the losses of primary assembly 100.

[0055] Therefore, by controlling the usage of the first material part 14 and the second material part 15, the thrust output of the primary component 100 can be improved and the efficiency of the motor can be ensured by replacing the material in a specific shape of a designated part without laminating silicon steel while ensuring that the material resistivity does not drop significantly.

[0056] According to some embodiments of the present invention, Figure 1 As shown, the yoke 10 and the tooth portion 13 are an integrally formed part.

[0057] The one-piece design improves the mechanical strength of the entire primary assembly 100 and reduces problems caused by weak joints. It also simplifies the manufacturing process, reduces assembly steps, and improves production efficiency. It also reduces the interfaces between different components, thereby reducing magnetic resistance and eddy current losses at these interfaces.

[0058] Therefore, the yoke 10 and the tooth portion 13 are integrally formed, which can effectively improve the structural strength of the primary component 100, simplify the manufacturing process of the primary component 100, thereby reducing the cost of the primary component 100 and improving the overall performance of the motor.

[0059] According to some embodiments of the present invention, the first material portion 14 is pure iron or cobalt iron.

[0060] Pure iron has very high magnetic permeability, making it suitable for high-frequency applications and significantly reducing eddy current and hysteresis losses. In motor design, pure iron can be used where high permeability and low losses are required. Cobalt-iron alloys have higher magnetic permeability and better high-temperature stability than pure iron. Therefore, using pure iron or cobalt-iron as the first material portion 14 ensures high magnetic permeability.

[0061] According to the second embodiment of the present invention, the motor Figure 1 As shown, it includes: a primary component 100 and a secondary component 20, the primary component 100 is the primary component 100 according to the embodiment of the first aspect of the present invention; the secondary component 20 is arranged on one side of the primary component 100 adjacent to the tooth portion 13 of the primary component 100, and the secondary component 20 is movable relative to the primary component 100.

[0062] Primary assembly 100 comprises a stator structure, while secondary assembly 20 comprises a mover structure. The teeth 13 of primary assembly 100 are adapted to mate with windings 21. When current flows through windings 21, a magnetic field is generated. Secondary assembly 20, the movable portion of the electrode, also generates a magnetic field. The magnetic field of secondary assembly 20 interacts with the magnetic field of primary assembly 100 to generate torque, causing secondary assembly 20 to rotate or move linearly under the influence of the magnetic field.

[0063] According to the motor of the embodiment of the present invention, by applying the primary component 100 in the above embodiment, the optimized stator design can reduce magnetic loss and eddy current loss, ensure the thrust of the primary component 100, effectively improve the efficiency and overall shape of the motor, improve the energy efficiency ratio of the motor, and reduce losses.

[0064] The suspension according to the third embodiment of the present invention includes the primary assembly 100 according to the first embodiment of the present invention, or the motor according to the second embodiment of the present invention.

[0065] According to the vehicle in the embodiment of the present invention, the overall performance of the suspension can be improved by applying the primary assembly 100 or the motor in the above embodiment.

[0066] The vehicle according to the fourth embodiment of the present invention includes the primary assembly 100 according to the first embodiment of the present invention, or the motor according to the second embodiment of the present invention, or the suspension according to the third embodiment of the present invention.

[0067] According to the vehicle of the embodiment of the present invention, by applying the primary assembly 100, motor or suspension of the above embodiments, the overall performance of the vehicle motor can be improved, including improving efficiency, enhancing reliability and achieving better energy management.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0069] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, a first feature being "above", "above" and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A primary assembly (100), characterized in that include: Yoke (10); At least one tooth portion (13), the tooth portion (13) being connected to the yoke portion (10), at least one of the tooth portion (13) and the yoke portion (10) comprising a first material portion (14) and a second material portion (15), the first material portion (14) and the second material portion (15) being made of different materials, the first material portion (14) being a high magnetic permeability material.

2. The primary component (100) according to claim 1, characterized in that The yoke (10) comprises: a first connecting portion (11), the first connecting portion (11) being connected to one side of the tooth portion (13) in the second direction; a second connecting portion (12), the second connecting portion (12) being connected between the first connecting portion (11) and the tooth portion (13), the second connecting portion (12) being located at an end of the tooth portion (13), and the material of at least one of the first connecting portion (11) and the second connecting portion (12) being the first material portion (14).

3. The primary component (100) according to claim 2, characterized in that The first connecting portion (11) is a first material portion (14).

4. The primary component (100) according to claim 2, characterized in that The second connecting portion (12) and the tooth portion (13) constitute a second material portion (15).

5. The primary component (100) according to claim 4, characterized in that The second material portion (15) is a soft magnetic composite material.

6. The primary component (100) according to claim 2, characterized in that There are a plurality of yoke parts (10), a plurality of tooth parts (13), the first connecting parts (11) and the second connecting parts (12) of the plurality of yoke parts (10) are alternately connected, the plurality of tooth parts (13) are respectively connected to the plurality of second connecting parts (12), and the plurality of tooth parts (13) are located at the same end of the plurality of second connecting parts (12).

7. The primary component (100) according to claim 1, characterized in that The second material portion (15) is provided on the outer peripheral side of the first material portion (14), and the magnetic permeability of the second material portion (15) is smaller than the magnetic permeability of the first material portion (14).

8. The primary component (100) according to claim 1, characterized in that The tooth portion (13) comprises the first material portion (14) and the second material portion (15), The first material portion (14) passes through at least one end of the second material portion (15) along a first direction.

9. The primary component (100) according to claim 1, characterized in that The width of the first material portion (14) along the first direction is X, the width of the second material portion (15) along the first direction is Y, the electromagnetic thrust of the primary component (100) is F, and X, Y, and F satisfy: F=Z 1+ 21.25X / Y-0.1X 2 / Y 2 , where Z1>0.

10. The primary component (100) according to claim 1, characterized in that The width of the first material portion (14) along the first direction is X, the width of the second material portion (15) along the first direction is Y, the iron loss value of the primary component (100) is L, and L, X, and Y satisfy: L=0.67X 2 / Y 2 +5X 2 / Y 2 +Z2, where Z2>0.

11. The primary component (100) according to claim 1, characterized in that The yoke (10) and the tooth (13) are integrally formed parts.

12. The primary assembly (100) according to any one of claims 1 to 11, characterized in that The first material portion (14) is pure iron or cobalt iron.

13. A motor, characterized in that: include: A primary component (100), the primary component (100) being the primary component (100) according to any one of claims 1 to 12; A secondary component (20) is provided on a side of the primary component (100) adjacent to the tooth portion (13) of the primary component (100), and the secondary component (20) is movable relative to the primary component (100).

14. A suspension, characterized in that: The method comprises a primary assembly according to any one of claims 1 to 12, or an electric machine according to claim 13.

15. A vehicle, characterized in that: Comprising a primary assembly (100) according to any one of claims 1 to 12, or an electric machine according to claim 13, or a suspension according to claim 14.

Images