Single-phase capacitor-run asynchronous motor

Abstract

The utility model relates to motor technical field, concretely is single -phase capacitor operation asynchronous motor, including core body, organism and mounting piece, be provided with installation cavity in the organism, the organism front and back both ends are provided with end cover, the end cover is connected with the organism through connecting piece, the installation cavity is also provided with core body, the core body output end through the end cover located in the front side, the organism below is also provided with mounting piece, the connecting piece includes connecting beam, support seat, docking cover, stud and end, this single -phase capacitor operation asynchronous motor, the docking cover on end cover support seat and organism connecting beam form clearance fit, automatic centering when inserting, need not manual accurate alignment screw hole when assembling, the end sinks into the receiving groove of docking cover, the outside cannot directly contact stud head, avoid the tool mistake to touch and disassemble, after the cap is inserted into the receiving groove, the limiting block and limiting groove form circumferential seal, prevent the oil dirt, water vapor into stud connecting part.

Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, specifically to a single-phase capacitor-run asynchronous motor. Background Technology

[0002] Single-phase capacitor-run asynchronous motor is a common type of single-phase asynchronous motor. Its significant feature is that the capacitor always participates in the operation during the operation, which has the advantages of stable operation and high efficiency.

[0003] The aforementioned motor has end covers on both the front and rear sides. Traditional motor end covers are bolted to the motor body. During assembly, the bolts on the end cover must be stably aligned with the screw grooves on the motor body. This makes assembly and positioning inconvenient. Moreover, the bolts are directly exposed and are easily disassembled by mistake. Furthermore, oil stains can easily damage the connection between the bolts and the end cover, making it inconvenient to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a single-phase capacitor-run asynchronous motor.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a single-phase capacitor-run asynchronous motor, comprising a core, a body, and a mounting component. The body has a mounting cavity, and end caps are provided at both the front and rear ends of the body. The end caps are connected to the body via connectors. The mounting cavity also contains a core, and the output end of the core passes through the end cap located at the front. The mounting component is also provided below the body.

[0008] The connector includes a connecting beam, a support base, a docking cover, a stud, and an end. Several sets of connecting beams are provided on the outer side of the machine body. Each set of connecting beams has screw holes on both the front and rear sides. A support base is provided around the end cover. A docking cover that is inserted into the connecting beam is provided on the side of the support base near the machine body. The stud passes through the docking cover and is threadedly connected to the screw hole. An end is also provided on the stud.

[0009] To facilitate the driving end, the present invention is improved by providing a storage groove for the end to be stored at the end of the docking cover away from the machine body, and a countersunk groove at the end of the end away from the machine body.

[0010] To protect the contact area between the end and the docking cover, this utility model is improved by providing a protective component on the docking cover to protect the end. The protective component includes a cap, a limiting block, and an unlocking head. The cap is inserted into the storage slot, and a limiting block is provided around the cap. The side wall of the storage slot is also provided with a limiting groove that matches the limiting block. The end of the end away from the machine body is provided with a notch that passes through the storage slot. The cap is also provided with an unlocking head that matches the notch.

[0011] Preferably, the mounting component includes a bracket and a mounting plate. The bracket is symmetrically arranged on the left and right sides below the machine body, and the mounting plate is arranged on the side of the bracket away from the center of the machine body.

[0012] Preferably, a reinforcing rib connected to the bracket is also provided above the mounting plate.

[0013] Preferably, the end cap located on the back side is also provided with several sets of heat dissipation holes.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a single-phase capacitor-run asynchronous motor, which has the following advantages:

[0016] The single-phase capacitor-driven asynchronous motor has a clearance fit between the mating cover on the end cover support and the connecting beam of the machine body. It automatically centers when inserted and does not require manual precise alignment of the screw holes during assembly.

[0017] The end is recessed into the storage groove of the docking cover, and the outside cannot directly contact the stud head to avoid accidental disassembly by tools;

[0018] After the cap is inserted into the storage slot, the limiting block and the limiting slot form a circumferential seal, preventing oil and moisture from entering the stud connection part. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a rear view schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a partial explosion diagram of the structure of this utility model;

[0022] Figure 4 The structure of this utility model Figure 3 A magnified view of a portion of the image.

[0023] In the diagram: 1. Core; 2. Body; 3. End cap; 4. Connecting beam; 5. Support base; 6. Docking cover; 7. Stud; 8. End; 9. Countersunk groove; 10. Cap; 11. Limiting block; 12. Unlocking head; 13. Bracket; 14. Mounting plate; 15. Reinforcing rib; 16. Heat dissipation hole. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 A single-phase capacitor-run asynchronous motor includes a core 1, a body 2, and mounting components. The body 2 has a mounting cavity, and end caps 3 are provided at both the front and rear ends of the body 2. The end caps 3 are connected to the body 2 through connectors. The core 1 is also provided in the mounting cavity, and the output end of the core 1 passes through the end cap 3 located on the front side. The mounting components are also provided below the body 2.

[0026] The machine body 2 has end caps 3 on its front and rear sides to enclose the mounting cavity. The machine body 2 also has a core 1 inside. The output end of the core 1 passes through the end cap 3 on the front side to ensure its stability. In this embodiment, the connecting component includes a connecting beam 4, a support base 5, a docking cover 6, a stud 7, and an end head 8. Several sets of connecting beams 4 are provided on the outer side of the machine body 2. Each set of connecting beams 4 has screw holes on its front and rear sides. The end cap 3 has a support base 5 around its periphery. The support base 5 has a docking cover 6 that is inserted into the connecting beam 4 on the side of the support base 5 near the machine body 2. The stud 7 passes through the docking cover 6 and is threadedly connected to the screw hole. The stud 7 also has an end head 8. The docking cover 6 on the support base 5 of the end cap 3 and the connecting beam 4 of the machine body 2 are fitted with a clearance to ensure that the coaxiality deviation between the hole of the stud 7 and the screw hole of the connecting beam 4 is ≤0.1mm when inserted, providing accurate positioning for subsequent threaded connection.

[0027] After the stud 7 passes through the connecting cover 6, it is screwed into the threaded hole of the connecting beam 4. The end 8 (hexagonal) is countersunk through the groove 9 and cooperates with a special tool (such as a flathead screwdriver) to apply torque so that the end cover 3 is tightly attached to the machine body 2. After tightening, the axial tension of the stud 7 clamps the end cover 3 and the machine body 2 together, with a contact pressure ≥1.5MPa to ensure connection rigidity.

[0028] In this embodiment, the docking cover 6 is provided with a storage groove for storing the end head 8 at the end away from the body 2. The storage groove (5mm deep) at the end away from the body 2 of the docking cover 6 completely sinks the end head 8, and external tools (such as wrenches) cannot contact the surface of the end head 8.

[0029] In actual use, further protection is required for the end 8. Therefore, the docking cover 6 is also provided with a protective component to protect the end 8. The protective component includes a cap 10, a limiting block 11, and an unlocking head 12. The cap 10 is inserted into the storage slot. The cap 10 is provided with a limiting block 11 around its periphery. The side wall of the storage slot is also provided with a limiting groove that matches the limiting block 11. The end of the end 8 away from the body 2 is provided with a notch that passes through the storage slot. The cap 10 is also provided with an unlocking head 12 that matches the notch. After the cap 10 is inserted into the storage slot, the outer limiting block 11 is press-fitted with the limiting groove on the inner wall of the storage slot to prevent oil and water from entering the connection part of the stud 7. The limiting block 11 is arc-shaped. The unlocking head 12 on the cap 10 needs to be aligned with the notch on the end 8 to be inserted. The notch and the end 8 make it easy to pull out the end cap.

[0030] In this embodiment, the mounting component includes a bracket 13 and a mounting plate 14. The bracket 13 is symmetrically arranged on the left and right sides below the body 2. The mounting plate 14 is arranged on the side of the bracket 13 away from the center of the body 2. A reinforcing rib 15 connected to the bracket 13 is also arranged on the upper part of the mounting plate 14. The bracket 13 below the body 2 is connected to the mounting plate 14 through the reinforcing rib 15 to form a triangular support structure.

[0031] Several sets of heat dissipation holes 16 are also provided on the end cover 3 on the back side. The heat dissipation holes 16 on the back end cover 3 cooperate with the airflow generated by the rotation of the core 1 to discharge the heat inside the motor through thermal convection.

[0032] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0033] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A single-phase capacitor-run asynchronous motor, comprising a core (1), a body (2), and mounting components, characterized in that, The machine body (2) is provided with an installation cavity. The machine body (2) is provided with end caps (3) at both the front and rear ends. The end caps (3) are connected to the machine body (2) through connectors. The installation cavity is also provided with a core (1). The output end of the core (1) passes through the end cap (3) located on the front side. The machine body (2) is also provided with an installation component below it. The connector includes a connecting beam (4), a support base (5), a docking cover (6), a stud (7), and an end (8). Several sets of connecting beams (4) are provided on the outer side of the body (2). Each set of connecting beams (4) has screw holes on both the front and rear sides. A support base (5) is provided around the end cover (3). A docking cover (6) that is inserted into the connecting beam (4) is provided on the side of the support base (5) near the body (2). The stud (7) passes through the docking cover (6) and is threadedly connected to the screw hole. An end (8) is also provided on the stud (7).

2. The single-phase capacitor-run asynchronous motor according to claim 1, characterized in that, The docking cover (6) is provided with a storage groove for the end head (8) at the end away from the body (2), and the end head (8) is also provided with a countersunk groove (9) at the end away from the body (2).

3. The single-phase capacitor-run asynchronous motor according to claim 2, characterized in that, The docking cover (6) is also provided with a protective component to protect the end (8). The protective component includes a cap (10), a limiting block (11), and an unlocking head (12). The cap (10) is inserted into the storage slot. The cap (10) is provided with a limiting block (11) around its periphery. The side wall of the storage slot is also provided with a limiting groove that matches the limiting block (11). The end (8) away from the body (2) is provided with a notch that passes through the storage slot. The cap (10) is also provided with an unlocking head (12) that matches the notch.

4. The single-phase capacitor-run asynchronous motor according to claim 3, characterized in that, The mounting components include brackets (13) and mounting plates (14). The brackets (13) are symmetrically arranged on the left and right sides below the body (2), and the mounting plates (14) are arranged on the side of the brackets (13) away from the center of the body (2).

5. The single-phase capacitor-run asynchronous motor according to claim 4, characterized in that, A reinforcing rib (15) connected to the bracket (13) is also provided above the mounting plate (14).

6. The single-phase capacitor-run asynchronous motor according to claim 5, characterized in that, Several sets of heat dissipation holes (16) are also provided on the end cap (3) located on the back side.

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