Magnet mounting structure for micro motor

Abstract

The utility model provides a kind of micro motor magnet mounting structure, including the shell of one end opening setting, strip slot is opened in the length direction of shell in the both sides of shell, support plate is equipped in the both sides in shell, clearance fit between support plate and shell inner wall, the middle part of the side of the relative close of two support plates is equipped with the adsorption plate with magnetism;Connecting seat is installed in the side of the relative far of support plate, connecting seat is set across strip slot, connecting ring is set on the outside of shell, and connecting ring is fixed with connecting seat.The utility model sets up the support plate of slidable, connecting seat and connecting ring structure, can pull out support plate from shell portion, so that magnet is installed outside, effectively avoid the installation difficult problem caused by shell magnetic adsorption.At the same time, the setting of first limit board and second limit board can accurately position magnet, ensure that both sides magnet is installed in alignment, improve installation precision and stability.

Description

Technical Field

[0001] This utility model relates to the field of micro motor technology, and more specifically, to a micro motor magnet mounting structure. Background Technology

[0002] Micro motors refer to motors with a diameter of less than 160mm or a rated power of less than 750mW. There are many types of micro motors, which can be broadly classified into 13 categories, including DC motors, AC motors, self-adjusting angle motors, stepper motors, rotary transformers, shaft angle encoders, AC / DC universal motors, tachogenerators, inductive synchros, linear motors, piezoelectric motors, motor units, and other special motors.

[0003] Most existing micro motors consist of magnets placed on both sides of the housing and a rotor placed between the two magnets. However, due to the small size of the micro motor itself, the housing of the micro motor is mostly designed with a single-sided opening. This means that when installing the magnet, it is necessary to insert the magnet into the housing through the opening. In addition, the housing of micro motors is made of magnetic metal materials, which causes the magnet to be attracted to the housing when it gets close. The magnetic attraction greatly affects the operation of pushing the magnet into the housing. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a micro-motor magnet mounting structure to overcome or at least partially solve the above technical problems.

[0005] This utility model provides a micro motor magnet mounting structure, including a housing with an opening at one end, strip grooves on both sides of the housing along the length of the housing, support plates on both sides inside the housing, the support plates and the inner wall of the housing being fitted with a clearance, and a magnetic adsorption plate installed in the middle of the side of the two support plates that are relatively close to each other. A connecting seat is installed on the side of the support plate that is relatively far away from the support plate. The connecting seat passes through the strip groove and a connecting ring is fitted on the outside of the housing. The connecting ring is fixed to the connecting seat.

[0006] In a preferred embodiment, a cover plate is provided on the opening of the housing, and a skirt is installed along the edge of the cover plate near the housing. The skirt is fixed to the housing by fasteners. A magnet is provided on the adsorption plate, and a rotor is provided between the two magnets. One end of the rotor passes through the end of the casing and is rotatably connected to the casing, while the other end of the rotor passes through the cover plate and is rotatably connected to the cover plate.

[0007] In a preferred embodiment, the sides of the two support plates are connected by a connecting plate.

[0008] In a preferred embodiment, a first limiting plate is vertically installed at both ends of the support plate, and a second limiting plate is vertically installed on both sides of the support plate.

[0009] In a preferred embodiment, a slot is provided on the first limiting plate, and a baffle is built into the slot, with one end of the baffle fixed to the end inside the housing.

[0010] In a preferred embodiment, L-shaped plates are connected to both ends of the connecting ring, and the sides of the L-shaped plates are fixed to the housing by fasteners.

[0011] In a preferred embodiment, the support plate is an insulated heat spreader.

[0012] The beneficial effects of the targeted solution provided by this utility model include: 1. This utility model, by setting a sliding support plate, connecting seat, and connecting ring structure, allows the support plate to be pulled out from inside the casing, enabling the magnet to be installed externally, effectively avoiding installation difficulties caused by the magnetic adsorption of the casing. Simultaneously, the first and second limiting plates enable precise positioning of the magnet, ensuring aligned installation of the magnets on both sides, improving installation accuracy and stability.

[0013] 2. This utility model uses a gap fit between the support plate and the inner wall of the housing, and connects the two support plates on both sides through a connecting plate to enhance the rigidity of the overall structure. The cooperation between the baffle and the slot further restricts the movement of the support plate, prevents it from shaking inside the housing, ensures the magnet is fixed in position, and avoids affecting the motor performance due to vibration or movement. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model; Figure 2 Exploded view provided for embodiments of this utility model; Figure 3 A schematic diagram of the internal structure of the casing provided for an embodiment of this utility model; Figure 4 A side view provided for an embodiment of this utility model; Figure 5 A front view provided for an embodiment of this utility model.

[0016] In the diagram: 1. Housing; 2. Strip groove; 3. Support plate; 4. Connecting plate; 5. Adsorption plate; 6. Magnet; 7. Connecting ring; 8. Connecting seat; 9. Skirt; 10. L-shaped plate; 11. First limiting plate; 12. Slot; 13. Baffle; 14. Second limiting plate; 15. Rotor; 16. Cover plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example Reference Figures 1-5 This utility model provides a technical solution: a micro motor magnet mounting structure, including a housing 1 with an open end, strip grooves 2 on both sides of the housing 1 along its length, and support plates 3 on both sides inside the housing 1. The support plates 3 are fitted with the inner wall of the housing 1 with a gap, allowing the support plates 3 to slide freely inside the housing 1. A magnetic adsorption plate 5 is installed in the middle of the side of the two support plates 3 that are relatively close to each other. In actual use, the adsorption plate 5 is a metal plate, and a magnet 6 is provided on the adsorption plate 5. That is, when the magnet 6 is placed inside the support plate 3, the magnet 6 will be attracted to the adsorption plate 5, thereby making the magnet 6 stable on the inside of the support plate 3.

[0019] Furthermore, such as Figure 3 As shown, the sides of the two support plates 3 are connected by a connecting plate 4 to connect and support the two support plates 3. With the gap between the support plates 3 and the inner wall of the housing 1, the support plates 3 are stabilized inside the housing 1.

[0020] It should be noted that when magnet 6 is placed inside support plate 3, as... Figure 2 and Figure 3 As shown, a first limiting plate 11 is vertically installed at both ends of the support plate 3, and a second limiting plate 14 is vertically installed on both sides of the support plate 3 to limit the edge of the magnet 6, that is, to determine the position of the magnet 6 when it is placed inside the support plate 3, to ensure the alignment of the magnets 6 on both sides, and to ensure the full interaction between the magnet 6 and the adsorption plate 5.

[0021] When installing magnet 6 on support plate 3, as Figure 1 and Figure 3As shown, a connecting seat 8 is installed on the side of the support plate 3 that is relatively far apart. The connecting seat 8 is set through the strip groove 2. A connecting ring 7 is sleeved on the outside of the housing 1. The connecting ring 7 is fixed to the connecting seat 8. The connecting ring 7 can be directly used to push and pull the support plate 3 out of the housing 1, exposing the support plate 3 outside the housing 1. This provides sufficient visual and operational space for the installation of the magnet 6 on the support plate 3. The magnet 6 can be directly taken out, passed between the two support plates 3, and placed on the support plate 3 for fixation. This reduces the interference of magnetic effect and the interference of the housing 1 itself, and improves the convenience of installing the magnet 6.

[0022] In order to improve the effortless sliding of the support plate 3 within the housing 1, L-shaped plates 10 are connected to both ends of the connecting ring 7, providing a larger force-bearing surface for the force-bearing movement of the connecting ring 7 and improving the ease of movement of the connecting ring 7.

[0023] When magnet 6 is fixed to support plate 3 and support plate 3 is pushed back into housing 1, as Figure 3 and Figure 5 As shown, a slot 12 is provided on the first limiting plate 11, and a baffle 13 is built into the slot 12. One end of the baffle 13 is fixed to the end inside the housing 1, which limits the sliding of the support plate 3 inside the housing 1. This ensures the stability of the support plate 3 when it moves, and also blocks and limits the side of the magnet 6, further improving the stability of the magnet 6 on the support plate 3.

[0024] In addition, the side of the L-shaped plate 10 is fixed to the housing 1 by fasteners. In actual use, the fasteners are either screws or bolts. After the support plate 3 is pushed back into the housing 1, the support plate 3 can be fixed to prevent the support plate 3 from shaking inside the housing 1, which would cause the position of the magnetic field lines of the magnet 6 to change.

[0025] Finally, as Figure 1 and Figure 2 As shown, a cover plate 16 is provided on the opening of the housing 1. A skirt 9 is installed along the edge of the cover plate 16 near the housing 1. The skirt 9 is fixed to the housing 1 by fasteners. A rotor 15 is provided between the two magnets 6. One end of the rotor 15 passes through the end of the housing 1 and is rotatably connected to the housing 1. The other end of the rotor 15 passes through the cover plate 16 and is rotatably connected to the cover plate 16. After the support plate 3 is pushed back into the housing 1, the rotor 15 can be taken out and inserted into the housing 1. Then the cover plate 16 is closed and fixed, thus forming a complete micro motor structure. After the coil on the rotor 15 is energized, the rotor 15 can rotate under the action of magnetic lines of force.

[0026] It should be noted that the support plate 3 is an insulated heat spreader. In actual use, the support plate 3 is one of an epoxy resin insulated heat spreader, an organosilicon soft mica heat spreader, or a graphene heating insulated plate. This allows heat between the support plates 3 to be transferred along the support plates 3 to the housing 1, and then transferred outward from the housing 1, ensuring the micro motor's own heat dissipation efficiency. The above is only a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A micro-motor magnet mounting structure, comprising a housing (1) with an opening at one end, characterized in that: A strip groove (2) is provided on both sides of the housing (1) along the length direction of the housing (1). A support plate (3) is provided on both sides inside the housing (1). The support plate (3) is fitted with the inner wall of the housing (1) with a gap. A magnetic adsorption plate (5) is installed in the middle of the side of the two support plates (3) that are relatively close to each other. A connecting seat (8) is installed on the side of the support plate (3) that is relatively far away from each other. The connecting seat (8) passes through the strip groove (2). A connecting ring (7) is sleeved on the outside of the housing (1). The connecting ring (7) is fixed to the connecting seat (8).

2. The micro-motor magnet mounting structure according to claim 1, characterized in that: A cover plate (16) is provided on the opening of the housing (1), and a skirt (9) is installed along the edge of the cover plate (16) near the housing (1). The skirt (9) is fixed to the housing (1) by fasteners. A magnet (6) is provided on the adsorption plate (5), and a rotor (15) is provided between the two magnets (6). One end of the rotor (15) passes through the end of the housing (1) and is rotatably connected to the housing (1). The other end of the rotor (15) passes through the cover plate (16) and is rotatably connected to the cover plate (16).

3. The micro-motor magnet mounting structure according to claim 1, characterized in that: The sides of the two support plates (3) are connected by a connecting plate (4).

4. The micro-motor magnet mounting structure according to claim 1, characterized in that: A first limiting plate (11) is vertically installed at both ends of the support plate (3), and a second limiting plate (14) is vertically installed on both sides of the support plate (3).

5. The micro-motor magnet mounting structure according to claim 4, characterized in that: A slot (12) is provided on the first limiting plate (11), and a baffle (13) is built into the slot (12). One end of the baffle (13) is fixed to the end of the housing (1).

6. The micro-motor magnet mounting structure according to claim 1, characterized in that: L-shaped plates (10) are connected to both ends of the connecting ring (7), and the sides of the L-shaped plates (10) are fixed to the housing (1) by fasteners.

7. The micro-motor magnet mounting structure according to claim 1, characterized in that: The support plate (3) is an insulated heat spreader.

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