Axial magnetic flux motor conductive column assembly structure and axial magnetic flux motor

Abstract

The utility model relates to an axial magnetic flux motor conductive column assembling structure and an axial magnetic flux motor. The axial magnetic flux motor conductive column assembling structure comprises a machine shell and a conductive column. The machine shell is in a barrel shape, a mounting platform is arranged on the outer side face of the machine shell in the radial direction of the machine shell, and the mounting platform is located in the middle of the machine shell in the axis direction. At least one first connecting groove is formed in the mounting platform; the conductive column is provided with at least one second connecting groove, and at least one connecting pin is arranged between the at least one first connecting groove and the at least one second connecting groove. According to the embodiment of the invention, the connecting grooves are formed in the shell and the conductive columns, and the connecting pins are introduced for pin hole connection, so that compared with a traditional dispensing connection mode, the pin hole connection mode is firmer, the problem that the conductive columns fall off due to vibration when the motor works can be prevented, and the connecting grooves and the connecting pins also have a positioning effect; therefore, the conductive column can be accurately aligned with the assembly position on the casing during assembly, the assembly error is reduced, and the consistency of finished products is improved.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to an axial flux motor conductive post assembly structure and an axial flux motor. Background Technology

[0002] Axial flux motors, especially PCB (Printed Circuit Board) based axial flux motors, are compact and efficient motors that combine the flat structure of axial flux motors with PCB technology, resulting in superior performance in terms of power density, heat dissipation, and manufacturing cost. They are suitable for applications with small size but high output torque, such as flexible hand motors and joint motors in the robotics industry, drone drive motors in the small drone industry, and micro motor applications in the high-end medical industry.

[0003] In the prior art, the conductive posts of the axial flux motor are connected to the housing by adhesive dispensing. However, the adhesive dispensing method is not strong enough. Factors such as vibration generated during motor operation can cause the adhesive to fail, resulting in the conductive posts falling off and affecting the normal use of the motor. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an axial flux motor conductive post assembly structure and an axial flux motor.

[0005] In a first aspect, embodiments of this application disclose an axial flux motor conductive column assembly structure, including a housing and conductive columns;

[0006] The casing is cylindrical, and an installation platform is provided on the outer side of the casing along the radial direction, with the installation platform located at the middle position of the casing along the axial direction.

[0007] The mounting platform is provided with at least one first connecting groove; the conductive post is provided with at least one second connecting groove, and at least one connecting pin is provided between the at least one first connecting groove and the at least one second connecting groove.

[0008] In some possible embodiments, the surface of the mounting platform facing the conductive column is provided with a V-shaped first guide slope, and the surface of the conductive column facing the mounting platform is provided with a V-shaped second guide slope.

[0009] The first connecting groove is located in the recess of the first guide slope, and the second connecting groove is located in the protrusion of the second guide slope.

[0010] In some possible embodiments, the number of first connection slots is configured to be multiple, and the number of second connection slots is configured to be multiple;

[0011] Multiple first connecting slots are evenly arranged along the length of the mounting platform.

[0012] In some possible embodiments, the conductive post includes a base and a plurality of terminals; the plurality of terminals are disposed on the base and are bent toward one side of the base;

[0013] The multiple first connecting slots have the same shape as the corresponding multiple first connecting slots; the multiple first connecting slots may have the same shape or different shapes.

[0014] In some possible embodiments, a buffer pad is provided between the first connecting groove and the connecting pin and / or between the second connecting groove and the connecting pin.

[0015] In some possible embodiments, the connecting pin includes a first connecting portion and a second connecting portion, the first connecting portion being located in a first connecting groove and the second connecting portion being located in a second connecting groove;

[0016] The circumference of the second connecting part gradually decreases from the point closer to the first connecting part to the point further away from the first connecting part.

[0017] In some possible embodiments, the connecting pin is cylindrical, and the outer surface of the connecting pin is provided with external threads along the circumference of the connecting pin; the first connecting groove and the second connecting groove are provided with internal threads; the first connecting groove and the connecting pin are threadedly connected, and the second connecting groove and the connecting pin are threadedly connected; or;

[0018] The first connecting groove and the connecting pin are connected by adhesive bonding, and the second connecting groove and the connecting pin are connected by adhesive bonding; or;

[0019] The first connecting groove and the connecting pin are welded together, and the second connecting groove and the connecting pin are welded together.

[0020] In some possible embodiments, the conductive post includes a base and a plurality of terminals disposed on the base;

[0021] The housing, connecting pins, and base are made of insulating material, while the terminals are made of conductive material.

[0022] In some possible embodiments, a detection element is provided between the first connecting groove and the connecting pin and / or between the second connecting groove and the connecting pin, the detection element being used to detect the connection status between the conductive post and the mounting platform.

[0023] Secondly, embodiments of this application disclose an axial flux motor, including the axial flux motor conductive column assembly structure of any one of the above.

[0024] The technical solution provided in this application has the following technical effects:

[0025] The axial flux motor conductive column assembly structure of this application includes a housing and conductive columns. The housing is cylindrical, and an installation platform is provided on the outer side of the housing along the radial direction, with the installation platform located at the middle position along the axial direction of the housing. At least one first connecting groove is provided on the installation platform. At least one second connecting groove is provided on the conductive column, and at least one connecting pin is provided between the at least one first connecting groove and the at least one second connecting groove. In this application embodiment, connecting grooves are opened on the housing and conductive columns, and connecting pins are introduced for pin-hole connection. Compared with the traditional glue-on connection method, the pin-hole connection method of this application is more robust and can prevent the conductive column from falling off due to vibration during motor operation. The connecting grooves and connecting pins also have a positioning function, enabling the conductive column to be accurately aligned with the assembly position on the housing during assembly, reducing assembly errors and improving the consistency of the finished product. Attached Figure Description

[0026] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 3 .

[0030] Figure label:

[0031] 1. Housing; 11. Mounting platform; 12. First connecting slot;

[0032] 2. Conductive post; 21. Second connecting groove; 22. Base; 23. Terminal post;

[0033] 3. Connecting pin. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that the term "an embodiment" or "embodiment" in the specification of the embodiments of this application refers to a specific feature, structure, or characteristic that can be included in at least one implementation of this application. It should be understood that in the specification, claims, and accompanying drawings of the embodiments of this application, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, in the description of this embodiment, unless otherwise stated, "a plurality of" means two or more. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, or product that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0036] It should be understood that when a device or component is referred to as being "on," "adjacent to," or "connected to" other devices or components, it may be directly on, adjacent to, or connected to other devices or components, or there may be intervening devices or components. Conversely, when a device or component is referred to as being "directly on," "directly adjacent to," or "directly connected to" other devices or components, there are no intervening devices or components. It should be understood that although the terms first, second, third, etc., may be used to describe various components, areas, layers, and / or parts, these components, areas, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one component, area, layer, or part from another component, area, layer, or part. Therefore, without departing from the teachings of this application, the first component, area, layer, or part discussed below may be referred to as the second component, area, layer, or part. And the discussion of the second component, area, layer, or part does not imply that the first component, area, layer, or part necessarily exists in this application.

[0037] To make the objectives, technical solutions, and advantages disclosed in the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of this application and are not intended to limit the embodiments of this application.

[0038] This application provides an assembly structure for the conductive column of an axial flux motor. Figure 1 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 1 , Figure 1 This is a cross-sectional view of the axial flux motor conductive post assembly structure, as shown below. Figure 1 As shown, the axial flux motor conductive column assembly structure includes a housing 1 and conductive columns 2.

[0039] In this embodiment, the housing 1 is hollow in a cylindrical shape, and an installation platform 11 is provided on the outer side of the housing 1 along the radial direction of the housing 1. The installation platform 11 is used to install the conductive post 2.

[0040] like Figure 1 As shown, the mounting platform 11 is located at the middle position along the axial direction of the housing 1, and at least one first connecting groove 12 is provided on the mounting platform 11. The conductive post 2 is provided with at least one second connecting groove 21. Figure 1 (not shown in the image), at least one connecting pin 3 is provided between at least one first connecting groove 12 and at least one second connecting groove 21.

[0041] With the above configuration, connecting grooves are opened on the housing 1 and the conductive post 2, and connecting pins 3 are introduced for pin hole connection. Compared with the traditional glue connection method, the pin hole connection method of this application is more robust and can prevent the conductive post 2 from falling off due to vibration during motor operation. The connecting groove and connecting pin 3 also have a positioning function, so that the conductive post 2 can be accurately aligned with the assembly position on the housing 1 during assembly, reducing assembly errors and improving the consistency of finished products.

[0042] Figure 2 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 2 ,like Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of the axial flux motor conductive column assembly structure. In some optional embodiments, the surface of the mounting platform 11 facing the conductive column 2 is provided with a V-shaped first guide ramp, and the surface of the conductive column 2 facing the mounting platform 11 is provided with a V-shaped second guide ramp. When the conductive column 2 and the mounting platform 11 are connected, the two guide surfaces of the V-shaped guide ramps can provide a natural guiding effect. Even if the conductive column 2 has a certain offset in its initial position, the two V-shaped guide ramps can guide the conductive column 2 to the accurate installation position through their own geometric properties, that is, the center position of the conductive column 2 coincides with the center position of the mounting platform 11. At the same time, the V-shaped ramps also have a mechanical self-locking effect, which can effectively prevent the conductive column 2 from loosening due to vibration during operation, thereby improving the stability of the entire housing 1.

[0043] Optionally, the first connecting groove 12 is disposed in the recess of the first guide slope, and the second connecting groove 21 is disposed in the protrusion of the second guide slope. After the center position of the conductive post 2 coincides with the center position of the mounting platform 11, the first connecting groove 12 and the second connecting groove 21 are also aligned with each other.

[0044] In some optional embodiments, the number of first connecting slots 12 is configured to be multiple, the number of second connecting slots 21 is configured to be multiple, and the multiple first connecting slots 12 are evenly arranged along the length direction of the mounting platform 11. The multiple pin connection structure can further enhance the stability between the conductive post 2 and the housing 1, and distribute the force, especially in environments with large motor vibration, it helps to reduce the loosening problem that may be caused by a single pin connection.

[0045] Figure 3 This is a schematic diagram of an axial flux motor conductive post assembly structure provided in an embodiment of this application. Figure 3 ,like Figure 3 As shown, in some optional embodiments, the conductive post 2 includes a base 22 and a plurality of terminals 23; specifically, three terminals 23 are provided, and the plurality of terminals 23 are disposed on the base 22 and bent toward one side of the base 22.

[0046] In this embodiment of the application, the multiple first connecting grooves 12 have the same shape as the corresponding multiple first connecting grooves 12, that is, the upper and lower parts of the connecting pin 3 have the same shape. This arrangement eliminates the need to distinguish the upper and lower directions of the connecting pin 3, thus speeding up the assembly process.

[0047] Optionally, the multiple first connecting slots 12 may have the same or different shapes. When multiple first connecting slots 12 with different shapes are provided, the different shapes of the first connecting slots 12 can clearly indicate the direction of the mounting platform 11 and the direction of the conductive post 2 during assembly, further speeding up the assembly process.

[0048] In some optional embodiments, a buffer pad is provided between the first connecting groove 12 and the connecting pin 3 and / or between the second connecting groove 21 and the connecting pin 3. The buffer pad can buffer the vibration during motor operation, absorb some of the vibration energy, reduce the impact of vibration on the pin hole connection, and improve the connection stability of the conductive post 2.

[0049] Specifically, the buffer pads can be made of elastic materials such as rubber and silicone, and their shape can be configured as ring pads or corrugated pads.

[0050] In some alternative embodiments, the connecting pin 3 includes a first connecting portion and a second connecting portion, the first connecting portion being located in a first connecting groove 12 and the second connecting portion being located in a second connecting groove 21.

[0051] In one possible embodiment, the circumference of the second connecting portion gradually decreases from near the first connecting portion to far away from the first connecting portion. That is, the second connecting portion is set to a cone shape. The cone-shaped second connecting portion can increase the contact area between the connecting pin 3 and the second connecting groove 21, and also increase the friction between the two, further preventing loosening caused by vibration, and increasing the firmness and vibration resistance of the connection.

[0052] In one optional embodiment, the connecting pin 3 is cylindrical, and its outer surface is provided with external threads along its circumference. The first connecting groove 12 and the second connecting groove 21 are provided with internal threads. The first connecting groove 12 and the connecting pin 3 are threadedly connected, and the second connecting groove 21 and the connecting pin 3 are also threadedly connected. This threaded connection method provides a more robust connection, resulting in greater stability for the housing 1 and the conductive post 2.

[0053] In another alternative embodiment, the first connecting groove 12 and the connecting pin 3 can also be connected by adhesive bonding, and the second connecting groove 21 and the connecting pin 3 can be connected by adhesive bonding. The pin connection provides the basic strength of the mechanical connection, while the adhesive bonding adds additional bonding force. The pin connection and the adhesive bonding work together to give full play to the advantages of both connection methods, thereby improving the stability, durability, and assembly reliability of the overall connection.

[0054] In another optional embodiment, the first connecting groove 12 and the connecting pin 3 can also be welded together, and the second connecting groove 21 and the connecting pin 3 can be welded together. Welding can further enhance the strength and stability of the connection. The above three connection methods are suitable for different scenarios, and an appropriate auxiliary connection method can be selected according to the specific scenario.

[0055] In some optional embodiments, the conductive post 2 includes a base 22 and a plurality of terminals 23 disposed on the base 22. The housing 1, connecting pin 3, and base 22 are made of insulating material, specifically PEEK (polyether ether ketone), which provides insulation and also exhibits high temperature resistance and chemical corrosion resistance. The terminals 23 are made of conductive materials such as copper, aluminum alloy, or silver-plated material, and connect to external circuits to transmit current.

[0056] In some optional embodiments, a detection element is provided between the first connecting groove 12 and the connecting pin 3 and / or between the second connecting groove 21 and the connecting pin 3. The detection element is used to detect the connection status between the conductive post 2 and the mounting platform 11. Specifically, a strain sensor or vibration sensor can be embedded in the pin connection to detect the load and connection status of the pin structure in real time, so as to facilitate timely detection of loosening or overload and timely maintenance.

[0057] This application also provides an axial flux motor, which includes the aforementioned axial flux motor conductive post assembly structure. By providing the axial flux motor conductive post assembly structure within the axial flux motor, and connecting the housing and conductive posts with pin holes, the pin hole connection method of this application is more robust than the traditional glue-on connection method. This method can prevent the conductive posts from falling off due to vibration during motor operation. The connecting groove and connecting pin also have a positioning function, enabling the conductive posts to be precisely aligned with the assembly positions on the housing during assembly, reducing assembly errors and improving product consistency.

[0058] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0059] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0060] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0061] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An assembly structure for conductive posts of an axial flux motor, characterized in that, Includes a housing (1) and conductive posts (2); The housing (1) is cylindrical, and an installation platform (11) is provided on the outer side of the housing (1) along the radial direction of the housing (1), and the installation platform (11) is located at the middle position of the housing (1) along the axial direction. The mounting platform (11) is provided with at least one first connecting groove (12); the conductive post (2) is provided with at least one second connecting groove (21), and at least one connecting pin (3) is provided between the at least one first connecting groove (12) and the at least one second connecting groove (21).

2. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, The mounting platform (11) has a V-shaped first guide slope on the side facing the conductive post (2), and the conductive post (2) has a V-shaped second guide slope on the side facing the mounting platform (11). The first connecting groove (12) is located in the recess of the first guide slope, and the second connecting groove (21) is located in the protrusion of the second guide slope.

3. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, The number of the first connecting slots (12) is configured to be multiple, and the number of the second connecting slots (21) is configured to be multiple; Multiple first connecting slots (12) are evenly arranged along the length direction of the mounting platform (11).

4. The axial flux motor conductive post assembly structure according to claim 3, characterized in that, The conductive post (2) includes a base (22) and a plurality of terminals (23); the plurality of terminals (23) are disposed on the base (22) and are bent toward one side of the base (22); The plurality of first connecting slots (12) have the same shape as the corresponding plurality of first connecting slots (12); the plurality of first connecting slots (12) may have the same shape or different shape.

5. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, A buffer pad is provided between the first connecting groove (12) and the connecting pin (3) and / or between the second connecting groove (21) and the connecting pin (3).

6. The axial flux motor conductive post assembly structure according to claim 5, characterized in that, The connecting pin (3) includes a first connecting part and a second connecting part, the first connecting part being located in the first connecting groove (12) and the second connecting part being located in the second connecting groove (21); The circumference of the second connecting portion gradually decreases from the point of proximity to the first connecting portion toward the point of distance from the first connecting portion.

7. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, The connecting pin (3) is cylindrical, and the outer surface of the connecting pin (3) is provided with an external thread along the circumference of the connecting pin (3). The first connecting groove (12) and the second connecting groove (21) are provided with internal threads; the first connecting groove (12) and the connecting pin (3) are threadedly connected, and the second connecting groove (21) and the connecting pin (3) are threadedly connected; or; The first connecting groove (12) and the connecting pin (3) are connected by adhesive dispensing, and the second connecting groove (21) and the connecting pin (3) are connected by adhesive dispensing; or; The first connecting groove (12) and the connecting pin (3) are welded together, and the second connecting groove (21) and the connecting pin (3) are welded together.

8. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, The conductive post (2) includes a base (22) and a plurality of terminals (23) disposed on the base (22); The housing (1), the connecting pin (3), and the base (22) are made of insulating material, and the terminal block (23) is made of conductive material.

9. The axial flux motor conductive post assembly structure according to claim 1, characterized in that, A detection element is provided between the first connecting groove (12) and the connecting pin (3) and / or between the second connecting groove (21) and the connecting pin (3). The detection element is used to detect the connection status between the conductive post (2) and the mounting platform (11).

10. An axial flux motor, characterized in that, It includes the axial flux motor conductive column assembly structure as described in any one of claims 1-9.

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