A motor with wire harness isolation structure

Abstract

The utility model discloses a kind of motor with wire harness isolation structure, including shell, stator assembly, rotor assembly, gear transmission mechanism, output shaft and wire harness, the stator assembly and the rotor assembly are housed in the shell and magnetically coupled, the gear transmission mechanism is set between the rotor assembly with the output shaft to transmit torque, still including wire protection box, the accommodating cavity for installing the stator assembly is equipped in the wire protection box, the bottom of the wire protection box is equipped with the isolation structure for separating and fixing the wire harness. By setting isolation structure in wire protection box bottom, each wire in wire harness is independently housed and positioned, ensure that always keep safe physical isolation between wire, especially between its first and last end of conductive terminal. Effectively prevent short-circuit failure caused by soldering point or terminal mutual contact, fundamentally avoid short-circuit problem caused by accidental contact between wire, greatly improve the electrical safety and long-term operation reliability of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, specifically to a motor with a wire harness isolation structure. Background Technology

[0002] Electric motors, as devices that convert electrical energy into mechanical energy, are widely used in various industrial equipment, household appliances, and automation systems. Their basic structure typically includes a housing, stator assembly, rotor assembly, and an output mechanism that transmits power to the load. During the manufacturing and assembly of electric motors, the stator assembly needs to be electrically connected to an external power source, which is generally achieved through circuit boards or wiring harnesses.

[0003] In many existing motor designs, especially in miniaturized, compact motors, the multiple wires connecting the stator assembly are often simply bundled together without effective securing and isolation. After soldering the terminals, the solder points or conductive terminals of these wires are very close to each other. During operation, transportation, or installation, vibration and impact are inevitable, which can cause relative displacement of these originally separate wires, leading to contact between the solder points or conductive terminals and resulting in a short circuit. Such a short circuit not only causes the motor to stop working immediately but can also burn out internal components and even pose a fire risk, posing a significant safety hazard.

[0004] Furthermore, a messy wiring harness layout is detrimental to automated motor production, affecting assembly efficiency and quality consistency. It can also interfere with internal moving parts due to harness movement, further increasing the risk of failure. Therefore, achieving reliable electrical isolation and physical fixation at the wiring harness leads to prevent short circuits caused by vibration, and improving the overall structural compactness and reliability, is a pressing technical problem in this field. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned defects of the prior art and provide a motor with a wire harness isolation structure. By setting a special wire protection box and isolation structure inside the motor, the wires in the wire harness are orderly separated and fixed, fundamentally avoiding short circuit problems caused by accidental contact between wires.

[0006] To achieve the above objectives, this utility model provides the following technical solutions: A motor with a wire harness isolation structure includes a housing, a stator assembly, a rotor assembly, a gear transmission mechanism, an output shaft, and a wire harness. The stator assembly and the rotor assembly are housed within the housing and magnetically coupled. The gear transmission mechanism is disposed between the rotor assembly and the output shaft to transmit torque. The motor also includes a wire protection box, which has a cavity for mounting the stator assembly. The bottom of the wire protection box has an isolation structure for separating and fixing the wire harness.

[0007] Furthermore, the isolation structure consists of several spaced-apart wire grooves, each of which is used to accommodate and position one wire in the wire bundle.

[0008] Furthermore, each wire in the wire harness is provided with a conductive terminal at both its beginning and end; the arrangement of the wire grooves ensures that each wire and its conductive terminal are isolated from each other.

[0009] Furthermore, the stator assembly includes a winding frame and an upper electrode plate, the upper electrode plate being assembled and connected to the winding frame, and the winding frame being electrically connected to the conductive terminals of each wire via pins.

[0010] Furthermore, the rotor assembly includes blades, a magnetic ring, and a housing needle. The magnetic ring is housed within the winding frame, and the housing needle passes through the housing and blades in sequence and is connected to the magnetic ring.

[0011] Furthermore, the gear transmission mechanism includes a transmission gear set, an output gear, and a gear plate. The transmission gear set is mounted on the gear plate via a gear plate pin and meshes with the output gear. The output gear is connected to the output shaft.

[0012] Furthermore, a friction plate is provided on the end face of the output gear.

[0013] Furthermore, the output shaft is supported by a bushing, which is mounted on the cover plate.

[0014] Furthermore, the bottom of the cable protection box is provided with a removable bottom cover.

[0015] Furthermore, the other end of the wire harness is connected to an insulating shell.

[0016] Compared with existing technologies, the technical solution of this patent achieves the following beneficial effects: 1. By installing an isolation structure at the bottom of the junction box, each wire in the wiring harness is independently housed and positioned, ensuring safe physical isolation between the wires, especially between their conductive terminals. This effectively prevents short circuits caused by contact between solder points or terminals, fundamentally avoiding short circuits caused by accidental contact between wires, and greatly improving the electrical safety and long-term operational reliability of the motor.

[0017] 2. The cable tray, along with the housing and cover, forms the complete outer shell of the motor, optimizing the internal space layout and making the overall structure more compact. The cable tray-like isolation structure provides clear guidance and positioning for wire harness installation, making the assembly process faster and more accurate, which is conducive to improving production efficiency and product consistency. Attached Figure Description

[0018] Figure 1 The diagram shown is an exploded structural schematic of this utility model; Figure 2 The diagram shown is a schematic of the winding skeleton structure in this utility model; Figure 3 The diagram shown is a schematic diagram of the cable protection box structure in this utility model; Figure 4 The diagram shown is a schematic diagram of the connection structure between the cable protection box and the wire harness in this utility model. Figure 5 The diagram shown is a schematic diagram of the connection structure between the cable protection box and the wire harness in this utility model. Figure 6 As shown Figure 5 A magnified view of AA in the image.

[0019] In the diagram: 1. Housing; 2. Stator assembly; 21. Winding frame; 211. Pin; 22. Upper electrode plate; 3. Rotor assembly; 31. Blade; 32. Magnetic ring; 33. Housing pin; 4. Gear transmission mechanism; 41. Transmission gear set; 42. Output gear; 421. Friction plate; 43. Gear plate; 431. Gear plate pin; 5. Output shaft; 6. Cable guard box; 61. Receptacle; 62. Isolation structure; 621. Cable groove; 7. Wire harness; 71. Wire; 711. Conductive terminal; 8. Bushing; 9. Cover plate; 10. Bottom cover; 11. Insulating shell. Detailed Implementation

[0020] 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.

[0021] See Figure 1-6As shown, this embodiment provides a motor, including a housing 1, a stator assembly 2, a rotor assembly 3, a gear transmission mechanism 4, an output shaft 5, a wire housing 6, and a wire harness 7. The stator assembly 2 and rotor assembly 3 are housed within the housing 1 and magnetically coupled. The gear transmission mechanism 4 is disposed between the rotor assembly 3 and the output shaft 5 to transmit torque. The motor also includes a wire housing 6 and a wire harness 7. The wire housing 6 has a cavity 61 for mounting the stator assembly 2, and an isolation structure 62 at the bottom of the wire housing 6 for separating and fixing the wire harness 7. In terms of safety, by providing the wire housing 6 and the isolation structure 62, a dedicated space for housing and fixing the wire harness 7 is provided in the overall structure. This not only achieves a neat layout of the wire harness but also fundamentally creates the physical conditions to prevent short circuits between wires, greatly improving the electrical safety and basic reliability of the motor. It achieves orderly separation of each wire on the wire harness 7, effectively avoiding and preventing accidental contact between solder points between wires that could cause a short circuit. It solves the problem that solder points between wires on the circuit board in traditional motors are prone to contact and short circuit faults. Structurally, the cable guard 6, together with the housing 1 and the cover plate 9, forms the outer shell of the motor, which improves the overall compactness of the structure and reduces the risk of electrical failure.

[0022] The isolation structure 62 consists of several spaced-apart cable trays 621, each cable tray 621 used to accommodate and position one wire 71 from the wire harness 7. The isolation structure 62 employs multiple spaced-apart cable trays 621, with each wire 71 independently accommodated and positioned, ensuring physical isolation between wires and further enhancing short-circuit protection. The cable tray 621 design not only provides thorough isolation but also serves as a guide during assembly, enabling faster and more accurate installation of the wire harness, improving production efficiency and consistency.

[0023] Each wire 71 in the wiring harness 7 has a conductive terminal 711 at both its beginning and end; the arrangement of the wire channels 621 isolates each wire 71 and its conductive terminal 711 from each other. Through the arrangement of the wire channels 621, the isolation protection extends to the level of the conductive terminal 711. This structure ensures that even in areas with concentrated terminals, the terminals cannot come into contact with each other due to the physical barrier of the wire channels, significantly improving the stability and safety of the electrical connection points and eliminating a critical potential point of failure.

[0024] The stator assembly 2 includes a winding frame 21 and an upper electrode plate 22. The upper electrode plate 22 is assembled and connected to the winding frame 21, and electrically connected to the conductive terminals 711 of each wire 71 via pins 211. This direct connection method, where the winding frame 21 is directly connected to the conductive terminals 711 via pins 211, simplifies the assembly process and reduces intermediate steps. This direct connection provides a more robust mechanical connection, a shorter and more reliable electrical transmission path, and the winding frame 21 itself also provides an optimized path for the magnetic field, contributing to improved motor efficiency.

[0025] The rotor assembly 3 includes blades 31, a magnetic ring 32, and a housing pin 33. The magnetic ring 32 is housed within the winding frame 21, and the housing pin 33 passes sequentially through the housing 1 and the blades 31 and connects to the magnetic ring 32. The rotor assembly 3 connects the housing 1, blades 31, and magnetic ring 32 into a single unit via the housing pin 33, ensuring the integrity and stability of the rotor structure. The magnetic ring 32, housed within the winding frame 21, optimizes magnetic coupling efficiency and improves the motor's output performance and operational smoothness.

[0026] The gear transmission mechanism 4 includes a transmission gear set 41, an output gear 42, and a gear plate 43. The transmission gear set 41 is mounted on the gear plate 43 via a gear plate pin 431 and meshes with the output gear 42. The output gear 42 is connected to the output shaft 5. The gear transmission mechanism 4 achieves precise gear positioning and smooth torque transmission by mounting the transmission gear set 41 on the gear plate 43 via the gear plate pin 431 and meshing it with the output gear 42. Structurally, the gear plate 43 provides rigid support, reduces backlash between gears, and improves transmission efficiency and lifespan.

[0027] Friction plates 421 are provided on the end face of the output gear 42. These effectively absorb vibration and reduce impact, resulting in smoother output torque. The friction plates 421 also provide overload protection, preventing gear damage and extending the service life of the transmission mechanism.

[0028] The output shaft 5 is supported by a bushing 8, which is mounted on the cover plate 9. This provides stable radial support, reducing the wobble and wear of the output shaft 5. Structurally, the bushing 8 enhances the rigidity and alignment of the output shaft 5, ensuring the accuracy and durability of torque output.

[0029] The bottom of the cable tray 6 is equipped with a removable bottom cover 10. This facilitates the inspection of the internal wiring harness when necessary, and makes it convenient to install, repair, or replace the wiring harness, thereby improving the maintainability and operational flexibility of the motor.

[0030] The other end of the wiring harness 7 is connected to an insulating shell 11. This structure provides double protection for external connections: firstly, its insulating material prevents the risk of short circuits or electric shocks; secondly, the plug-in structure ensures the firmness of the connection and avoids loosening due to pulling.

[0031] The working principle of this motor is as follows: External current is input to the stator assembly 2 through the wiring harness 7, generating a rotating magnetic field. This magnetic field interacts with the magnetic ring 32 in the rotor assembly 3, driving the rotor assembly 3 to rotate. The rotational power of the rotor is reduced and amplified by the gear transmission mechanism 4, and finally output by the output shaft 5 to drive the load equipment. Throughout the entire operation, because the wires on the wiring harness 7 are firmly separated and fixed in the isolation structure 62 of the cable protection box 6, even if the motor is in a strong vibration environment, the wires 71 and their conductive terminals 711 will not come into contact, thus ensuring the long-term, safe and reliable operation of the motor.

Claims

1. A motor with a wire harness isolation structure, comprising a housing (1), a stator assembly (2), a rotor assembly (3), a gear transmission mechanism (4), an output shaft (5), and a wire harness (7), wherein the stator assembly (2) and the rotor assembly (3) are housed within the housing (1) and magnetically coupled, and the gear transmission mechanism (4) is disposed between the rotor assembly (3) and the output shaft (5) to transmit torque, characterized in that, It also includes a cable guard box (6), which has a cavity (61) for installing the stator assembly (2) and an isolation structure (62) at the bottom of the cable guard box (6) for separating and fixing the wire harness (7).

2. The motor with a wire harness isolation structure according to claim 1, characterized in that, The isolation structure (62) consists of several spaced wire grooves (621), each of which is used to accommodate and position one wire (71) in the wire bundle (7).

3. The motor with a wire harness isolation structure according to claim 2, characterized in that, Each wire (71) of the wire harness (7) is provided with a conductive terminal (711) at its beginning and end; the arrangement of the wire groove (621) ensures that each wire (71) and its conductive terminal (711) are isolated from each other.

4. The motor with a wire harness isolation structure according to claim 3, characterized in that, The stator assembly (2) includes a winding frame (21) and an upper electrode plate (22). The upper electrode plate (22) is assembled and connected to the winding frame (21). The winding frame (21) is electrically connected to the conductive terminal (711) of each wire (71) through a pin (211).

5. The motor with a wire harness isolation structure according to claim 1, characterized in that, The rotor assembly (3) includes blades (31), a magnetic ring (32) and a housing needle (33). The magnetic ring (32) is housed in the winding frame (21), and the housing needle (33) passes through the housing (1) and the blades (31) in sequence and is connected to the magnetic ring (32).

6. The motor with a wire harness isolation structure according to claim 1, characterized in that, The gear transmission mechanism (4) includes a transmission gear set (41), an output gear (42), and a gear plate (43). The transmission gear set (41) is mounted on the gear plate (43) via a gear plate pin (431) and meshes with the output gear (42). The output gear (42) is connected to the output shaft (5).

7. The motor with a wire harness isolation structure according to claim 6, characterized in that, Friction plates (421) are provided on the end face of the output gear (42).

8. The motor with a wire harness isolation structure according to claim 1, characterized in that, The output shaft (5) is supported by a bushing (8), which is mounted on the cover plate (9).

9. The motor with a wire harness isolation structure according to claim 1, characterized in that, The bottom of the cable protection box (6) is provided with a removable bottom cover (10).

10. The motor with a wire harness isolation structure according to claim 1, characterized in that, The other end of the wire harness (7) is connected to an insulating shell (11).

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