Abs motor magnet assembly structure

Abstract

The utility model relates to an ABS motor magnet assembly structure, it includes: retainer body is equipped with a plurality of magnet mounting groove, the sidewall of magnet mounting groove is equipped with the pole direction mistake prevention groove, magnet is installed in magnet mounting groove, magnet is equipped with magnet mistake prevention convex that matches with the pole direction mistake prevention groove on, magnet mistake prevention convex is connected in the pole direction mistake prevention groove. Through the mistake prevention groove design on the physical structure, realized mistake prevention function, when the production personnel attempts to install magnet in the wrong direction, the convex on magnet and the recess on retainer produce interference, cannot be installed, fundamentally avoids the assembly error, need not extra detection to be able to ensure the assembly accuracy, improves the assembly efficiency, reduces the rework rate and the scrap rate, reduces the production cost.

Description

Technical Field

[0001] This utility model relates to the field of brushed motor manufacturing, specifically to an ABS motor magnet assembly structure. Background Technology

[0002] The stator of a brushed motor typically requires multiple permanent magnets (referred to as "magnets") to be mounted on a cage. The magnets must be arranged in a fixed N / S polarity, and then the cage and magnets are pressed together into the housing to ensure that the motor outputs normal torque and speed.

[0003] In related technologies, cages are mostly simple structures with only uniformly sized magnet slots. If the N / S markings of the magnets are incorrect when they arrive, some magnets may be reversed during manual assembly, causing the motor stator magnetic field to become disordered. After assembly, the motor speed will be abnormal, the heat will be severe, and the coil may even burn out, requiring disassembly and rework, which will seriously reduce production efficiency and increase production costs. Summary of the Invention

[0004] Based on the above description, this utility model provides an ABS (Anti-lock Braking System) motor magnet assembly structure to solve the problem in related technologies that it is easy to reverse the polarity of some magnets, reducing production efficiency and increasing production costs.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An ABS motor magnet assembly structure includes: a retainer body with multiple magnet mounting slots, and a polarity anti-misalignment slot on the side wall of the magnet mounting slot; a magnet installed in the magnet mounting slot, and the magnet has a magnet anti-misalignment protrusion that matches the polarity anti-misalignment slot, and the magnet anti-misalignment protrusion is engaged in the polarity anti-misalignment slot.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the polar anti-mistake groove is disposed at the bottom of the magnet mounting groove, and the magnet anti-mistake protrusion is located at the bottom of the magnet.

[0008] Furthermore, the polar anti-mistake groove is disposed at one end of the magnet mounting groove, and the magnet anti-mistake protrusion is located at one end of the magnet.

[0009] Furthermore, the polarity anti-misalignment slots in two adjacent magnet mounting slots are located at opposite ends.

[0010] Furthermore, the cage body is made of nylon and glass fiber.

[0011] Furthermore, the cage body and the polar anti-misalignment groove are integrally injection molded.

[0012] Furthermore, the magnet is a neodymium iron boron permanent magnet, and the anti-error protrusion of the magnet is formed by sintering.

[0013] Furthermore, a baffle is provided on the outer side of the polar anti-misalignment groove, and the baffle can extend and retract into the polar anti-misalignment groove.

[0014] Furthermore, the baffle is installed at the bottom of the polar anti-misalignment groove, and the baffle can move up and down.

[0015] Furthermore, the bottom of the baffle is provided with an elastic element, which can drive the baffle to move.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: By incorporating error-proof grooves in the physical structure, the system achieves error prevention. When production personnel attempt to install the magnet in the wrong direction, the protrusions on the magnet interfere with the grooves on the cage, preventing it from being installed. This fundamentally avoids assembly errors, ensuring assembly accuracy without additional testing, improving assembly efficiency, reducing rework and scrap rates, and lowering production costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the ABS motor magnet assembly structure provided in this embodiment of the utility model; Figure 2 A schematic diagram of the structure of the cage provided in an embodiment of this utility model; Figure 3 This is a partial structural diagram provided for an embodiment of the present utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. Cage body; 2. Magnet mounting slot; 3. Polar anti-misalignment slot; 4. Magnet; 5. Magnet anti-misalignment protrusion; 6. Baffle; 7. Elastic element. Detailed Implementation

[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0020] This utility model provides an ABS motor magnet assembly structure that can solve the problem in related technologies where the polarity of some magnets is easily reversed, reducing production efficiency and increasing production costs.

[0021] See Figure 1As shown, this utility model provides an ABS motor magnet assembly structure, which includes: a cage body 1 with multiple magnet mounting slots 2, and a polarity anti-misalignment slot 3 on the side wall of the magnet mounting slot 2; a magnet 4 installed in the magnet mounting slot 2. The cage body is an annular structure, and its inner wall is generally provided with 6 magnet mounting slots 2 spaced apart along the circumference. The magnet mounting slots 2 and magnets 4 are matched one-to-one. The magnets 4 are provided with magnet anti-misalignment protrusions 5 that match the polarity anti-misalignment slots 3. The magnet anti-misalignment protrusions 5 are engaged in the polarity anti-misalignment slots 3. The shape and size of the magnet anti-misalignment protrusions 5 match the polarity anti-misalignment slots 3. The protrusions can only be inserted into the notch when the magnet 4 is attached to the bottom of the slot according to the "preset N / S polarity". When assembled in reverse, the protrusions interfere with the back of the magnet and cannot be installed.

[0022] During assembly, take the cage body 1 and align the magnet anti-misalignment protrusion 5 of magnet 4 with the polarity anti-misalignment groove 3. Gently press magnet 4. If it can be smoothly inserted into the groove (the protrusion is fully inserted into the notch), the assembly is correct. If it is stuck and cannot be inserted when pressed, it is determined that "the magnet is installed in the wrong position". After adjustment, reassemble. After all 6 magnets are assembled, no additional testing is required to ensure that the polarity and position fully meet the design requirements. Then proceed directly to the subsequent motor component assembly process.

[0023] The error-proofing function is achieved through the design of error-proof slots in the physical structure. When production personnel attempt to install magnets in the wrong orientation, the features on the magnets interfere with the error-proofing structure on the cage, preventing installation and fundamentally avoiding assembly errors. The error-proofing structure can be directly implemented by modifying the existing cage mold without adding extra parts, increasing manufacturing costs almost nothing. In fact, it effectively reduces production costs by reducing rework and scrap rates. The error-proofing structure does not change the magnetic field distribution of the magnets, and the raised design of the magnets avoids the performance degradation caused by insufficient magnets. It avoids the rework and testing time wasted due to incorrect magnet installation, significantly improving the production efficiency of the assembly line.

[0024] In some embodiments, the polarity anti-misalignment groove 3 is disposed at the bottom of the magnet mounting groove 2, and the magnet anti-misalignment protrusion 5 is located at the bottom of the magnet 4, so that the magnet 4 can be assembled into the magnet mounting groove 2 while the magnet anti-misalignment protrusion 5 is correspondingly engaged with the polarity anti-misalignment groove 3.

[0025] In some embodiments, the polarity anti-misalignment groove 3 is disposed at one end of the magnet mounting groove 2, and the magnet anti-misalignment protrusion 5 is located at one end of the magnet 4. When the magnet 4 is installed in reverse, the magnet anti-misalignment protrusion 5 will be blocked out, making it easy to identify whether the polarity of the magnet 4 is installed correctly using the polarity anti-misalignment groove 3 and the magnet anti-misalignment protrusion 5.

[0026] In some alternative embodiments, the polar anti-misalignment groove 3 may also be provided on the side, top, or corner of the magnet mounting groove 2.

[0027] In some embodiments, the polarity-prevention grooves 3 in two adjacent magnet mounting slots 2 are located at opposite ends, and the N pole and S pole of two adjacent magnets 4 are installed in opposite directions during assembly, thus satisfying the assembly requirements of the stator magnet.

[0028] Preferably, the cage body 1 is made of nylon and glass fiber, and nylon-66 with 30% glass fiber can be added to combine strength and toughness, and adapt to the motor operating temperature.

[0029] Preferably, the cage body 1 and the polar anti-misalignment groove 3 are integrally injection molded, which can be directly modified from the existing cage mold.

[0030] Preferably, the magnet 4 is a neodymium iron boron permanent magnet, and the anti-error protrusion 5 of the magnet is formed by sintering, which does not affect the magnetic properties of the magnet.

[0031] In some embodiments, a baffle 6 is provided on the outer side of the polarity anti-misalignment groove 3. The baffle 6 can extend and retract into the polarity anti-misalignment groove 3. After the magnet anti-misalignment protrusion 5 is inserted into the magnet mounting groove 2, the baffle 6 can block the magnet anti-misalignment protrusion 5, maintain the stability of the magnet 4, and prevent it from shaking.

[0032] In some embodiments, the baffle 6 is installed at the bottom of the polar anti-misalignment groove 3. The baffle 6 can move up and down. When the magnet 4 is installed, the baffle 6 moves down to facilitate the magnet anti-misalignment protrusion 5 to be inserted into the magnet mounting groove 2. After the magnet 4 is installed, the baffle 6 moves up to lock the magnet anti-misalignment protrusion 5.

[0033] In some embodiments, the bottom of the baffle 6 is provided with an elastic element 7, which can drive the baffle 6 to move. When the magnetic anti-misalignment protrusion 5 is installed, the baffle 6 can be pressed down. After installation, the baffle 6 will automatically pop out, which is convenient to use.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0036] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0037] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ABS motor magnet assembly structure, characterized in that, It includes: The cage body (1) is provided with multiple magnet mounting slots (2), and the side wall of the magnet mounting slots (2) is provided with a polar anti-misalignment slot (3). A magnet (4) is installed in the magnet mounting groove (2). The magnet (4) is provided with a magnet error prevention protrusion (5) that matches the polar error prevention groove (3). The magnet error prevention protrusion (5) is snapped into the polar error prevention groove (3).

2. The ABS motor magnet assembly structure according to claim 1, characterized in that: The polar anti-mistake groove (3) is located at the bottom of the magnet mounting groove (2), and the magnet anti-mistake protrusion (5) is located at the bottom of the magnet (4).

3. The ABS motor magnet assembly structure according to claim 2, characterized in that: The polar anti-mistake groove (3) is disposed at one end of the magnet mounting groove (2), and the magnet anti-mistake protrusion (5) is located at one end of the magnet (4).

4. The ABS motor magnet assembly structure according to claim 3, characterized in that: The polar anti-misalignment grooves (3) in the two adjacent magnet mounting slots (2) are located at opposite ends.

5. The ABS motor magnet assembly structure according to claim 1, characterized in that: The cage body (1) is made of nylon and glass fiber.

6. The ABS motor magnet assembly structure according to claim 1, characterized in that: The cage body (1) and the polar anti-misalignment groove (3) are integrally injection molded.

7. The ABS motor magnet assembly structure according to claim 1, characterized in that: The magnet (4) is a neodymium iron boron permanent magnet, and the anti-error protrusion (5) of the magnet is formed by sintering.

8. The ABS motor magnet assembly structure according to claim 1, characterized in that: A baffle (6) is provided on the outside of the polar anti-misalignment groove (3), and the baffle (6) can extend and retract into the polar anti-misalignment groove (3).

9. The ABS motor magnet assembly structure according to claim 8, characterized in that: The baffle (6) is installed at the bottom of the polar anti-misalignment groove (3), and the baffle (6) can move up and down.

10. The ABS motor magnet assembly structure according to claim 9, characterized in that: The bottom of the baffle (6) is provided with an elastic element (7), which can drive the baffle (6) to move.

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