Corrosion-resistant stepper motor

Abstract

This utility model discloses a corrosion-resistant stepper motor, including a front cover and a rear cover. A stator assembly is disposed between the front and rear covers, and a rotor core is disposed at the center of the stator assembly. The rotor core is connected to a central shaft, and bearings are respectively sleeved at both ends of the central shaft. The bearings are fixed to the front and rear covers. This utility model achieves a tight connection between the front and rear covers and the beveled ends of the stator core by interlocking, and adds a ring of waterproof adhesive to further enhance the waterproof effect and reduce internal corrosion.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a corrosion-resistant stepper motor. Background Technology

[0002] A stepper motor is a type of electric motor that converts electrical pulse signals into corresponding angular or linear displacement. For each input pulse signal, the rotor rotates by an angle or moves forward one step. The output angular or linear displacement is proportional to the number of input pulses, and the rotational speed is proportional to the pulse frequency. Therefore, a stepper motor is also called a pulse motor. The biggest difference between a stepper motor and other motors used for control applications is that it receives digital control signals (electrical pulse signals) and converts them into corresponding angular or linear displacements; it is itself an actuator that completes digital mode conversion. Furthermore, it can perform open-loop position control; inputting a pulse signal yields a specified position increment. This incremental position control system, compared to traditional DC control systems, significantly reduces costs and requires almost no system adjustments.

[0003] Stepper motors are now used in a wider range of fields and are used in various industries. However, when used in some humid environments, they are prone to internal water seepage and moisture, which can cause internal corrosion. Utility Model Content

[0004] To address the aforementioned technical problems, a corrosion-resistant stepper motor is provided.

[0005] To achieve the above objectives, in a preferred embodiment of the present invention, the present invention is configured to include a front cover and a rear cover, a stator assembly is provided between the front cover and the rear cover, a rotor core is provided at the center of the stator assembly, the rotor core is connected to a central shaft, and bearings are respectively sleeved at both ends of the central shaft, and the bearings are fixed to the front cover and the rear cover.

[0006] In a preferred embodiment, the present invention may be further configured such that the stator assembly includes a stator core, with insulators inserted into both sides of the stator core, and coils wound on the insulators.

[0007] In a preferred embodiment, the present invention may be further configured such that a corrugated washer is provided on the outward side of the bearing at one end of the central shaft, and a washer is provided on the outward side of the bearing at the other end.

[0008] In a preferred embodiment, the present invention may be further configured such that a protruding winding post is provided on the inner wall of the insulator, and an anti-detachment baffle is provided at the end of the winding post.

[0009] In a preferred embodiment, the present invention may be further configured such that a groove is formed on the outer wall of the stator core near the upper and lower ends, and the groove is filled with a sealing colloid.

[0010] In a preferred embodiment, the present invention may be further configured such that inclined surfaces are provided at both ends of the outer wall of the stator core, and the inclined surfaces fit and cooperate with the inclined surfaces of the inner walls of the front end cover and the rear end cover.

[0011] Beneficial effects: The corrosion-resistant stepper motor of this utility model is made to be securely connected by the cooperation between the front and rear end covers and the inclined surfaces at the ends of the stator core, and an additional ring of waterproof adhesive is added to further enhance the waterproof effect and reduce internal corrosion. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic diagram of the inclined plane of this utility model.

[0015] In the diagram, 1 is the front cover; 2 is the washer; 3 is the coil; 4 is the insulator; 5 is the stator core; 6 is the bearing; 7 is the rotor core; 8 is the central shaft; 9 is the corrugated washer; 10 is the rear cover; and 11 is the inclined plane. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 and Figure 2 As shown, a corrosion-resistant stepper motor includes a front cover 1 and a rear cover 10. A stator assembly is provided between the front cover 1 and the rear cover 10. A rotor core 7 is provided at the center of the stator assembly. The rotor core 7 is connected to a central shaft 8. Bearings 6 are respectively sleeved at both ends of the central shaft 8. The bearings are fixed to the front cover 1 and the rear cover 10.

[0018] The stator assembly includes a stator core 5, with insulators 4 inserted into both sides of the stator core 5, and coils 3 wound around the insulators.

[0019] A corrugated washer 9 is provided on the outer side of the bearing 6 at one end of the central shaft 8, and a washer 2 is provided on the outer side of the bearing at the other end.

[0020] The inner wall of the insulator 4 is provided with a protruding winding post, and the end of the winding post is provided with an anti-detachment baffle.

[0021] The stator core 5 has a groove near the top and bottom of its outer wall, and the groove is filled with sealing colloid.

[0022] The stator core 5 has inclined surfaces at both ends of its outer wall, which fit and cooperate with the inclined surfaces 11 of the inner walls of the front cover 1 and the rear cover 10.

[0023] It should be noted that in this article, relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities.

[0024] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A corrosion-resistant stepper motor, characterized in that, It includes a front cover (1) and a rear cover (10). A stator assembly is provided between the front cover (1) and the rear cover (10). A rotor core (7) is provided at the center of the stator assembly. The rotor core (7) is connected to a central shaft (8). Bearings (6) are respectively sleeved at both ends of the central shaft (8). The bearings are fixed on the front cover (1) and the rear cover (10).

2. The corrosion-resistant stepper motor according to claim 1, characterized in that, The stator assembly includes a stator core (5), with insulators (4) inserted into both sides of the stator core (5) and coils (3) wound on the insulators.

3. The corrosion-resistant stepper motor according to claim 2, characterized in that, A corrugated washer (9) is provided on the outer side of the bearing (6) at one end of the central shaft (8), and a washer (2) is provided on the outer side of the bearing at the other end.

4. A corrosion-resistant stepper motor according to claim 3, characterized in that, The inner wall of the insulator (4) is provided with a protruding winding post, and the end of the winding post is provided with an anti-detachment baffle.

5. A corrosion-resistant stepper motor according to claim 4, characterized in that, The stator core (5) has a groove on its outer wall near the top and bottom ends, and the groove is filled with sealing colloid.

6. A corrosion-resistant stepper motor according to claim 5, characterized in that, The stator core (5) has inclined surfaces at both ends of its outer wall, and the inclined surfaces fit together with the inclined surfaces (11) of the inner walls of the front cover (1) and the rear cover (10).

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