Motor with guard joint

Abstract

The utility model relates to power motor technical field, especially a kind of motor with protective connector, including shell, first pedestal, second pedestal, drive motor, control panel, connector and protective connector, shell is provided with cavity, first pedestal is set on cavity, second pedestal is used to connect drive motor with first pedestal, control panel is set in drive motor, connector is set in second pedestal and is connected with control panel, protective connector is provided with connecting line, connecting line is set on first pedestal and is electrically connected with connector.The utility model improves the performance, reliability and applicability of motor product, has important practical value and market competitiveness, uses protective connector, improves the connection reliability and stability of motor under complex working condition.Protective connector is electrically connected with connector by its special connecting line, provides solid, shockproof, anti-loosening electrical interface between control panel and external power supply or signal source.

Description

Technical Field

[0001] This utility model relates to the field of power motor technology, and in particular to a motor with a protective connector. Background Technology

[0002] In modern industrial automation, robotics, and electric vehicles, motors, as core drive components, are crucial for their reliability and environmental adaptability. Traditional motors typically use standard connectors or direct wires for external electrical connections, which are adequate for static or mild operating conditions. However, in applications such as industrial robot joints, mobile robot hubs, and AGV drive wheels, motors are constantly subjected to high-frequency vibration, impact, and exposure to harsh environments such as dust, oil, and moisture. Traditional connection methods are prone to loosening and poor contact due to vibration, potentially leading to momentary power outages or signal interruptions, affecting the control accuracy and operational stability of the entire system. Furthermore, ordinary interfaces lack sufficient protection, allowing contaminants to easily penetrate the motor's interior along the cable interfaces, corroding or short-circuiting the internal precision control board and windings, resulting in increased motor failure rates and shortened lifespan.

[0003] Furthermore, with the increasing intelligence and integration of equipment, motors not only need to provide power but also integrate control functions. While embedding the control board within the motor saves space, it also places higher demands on internal layout, heat dissipation, and the reliability of external connections. In existing technologies, the connection between the motor and external power supply and signal lines is often a weak link, lacking specific protection designs for vibration and harsh environments, making it difficult to meet the stringent requirements of high-end equipment for high reliability, long lifespan, and maintenance-free drive systems. Therefore, there is an urgent need for a new type of motor connection structure that can significantly improve the reliability of electrical connections in vibration environments and the overall structural sealing and protection capabilities while ensuring efficient integration and convenient assembly, in order to adapt to increasingly complex and demanding application conditions. Utility Model Content

[0004] To address the aforementioned issues, this utility model improves the performance, reliability, and applicability of motor products, and is a motor with a protective connector that has significant practical value and market competitiveness.

[0005] The technical solution adopted by this utility model is: a motor with a protective connector, including a housing, a first base, a second base, a drive motor, a control board, a connector, and a protective connector. The housing is provided with a cavity, the first base is disposed on the cavity, the second base is used to connect the drive motor to the first base, the control board is disposed inside the drive motor, the connector is disposed on the second base and connected to the control board, and the protective connector is provided with a connecting wire, which is disposed on the first base and electrically connected to the connector.

[0006] A further improvement to the above scheme is that the cavity includes an inner cavity, a first step, and a second step arranged sequentially, the drive motor is arranged in the inner cavity, and the first base is provided with a first bearing connected to the first step and a second bearing connected to the second step.

[0007] A further improvement to the above scheme is that a sealing connection part is provided at the port of the cavity, and a sealing element is provided at the sealing connection part, which is used to seal the connection part and the first base.

[0008] A further improvement to the above solution is that a fixing groove is provided at the port of the cavity, and a fixing ring is provided in the fixing groove, the fixing ring being used to fix the end of the second bearing.

[0009] A further improvement to the above solution is that a transmission connection is provided between the first step and the second step, a transmission output component is provided on the first base, the drive motor is provided with a drive shaft, the drive shaft is connected to the transmission output component, and the transmission output component is connected to the transmission connection; the drive motor drives the transmission output component to rotate through the drive shaft, so as to drive the outer shell to rotate through the transmission connection.

[0010] A further improvement to the above solution is that a wiring cavity is provided on the first base, the wiring cavity is connected to a wiring hole, one end of the wiring hole extends to the end of the first base, and one end of the connector faces the wiring cavity; the connecting wire is disposed in the wiring hole.

[0011] A further improvement to the above solution is that a sealant is used to connect the connecting wire and the wiring hole.

[0012] A further improvement to the above scheme is that the first base is provided with heat transfer ribs, which extend to the stator winding of the drive motor and are used for heat conduction and heat dissipation of the stator winding.

[0013] A further improvement to the above solution is that the second base is provided with a connecting fixing groove and a control fixing platform, the control board is disposed on the control fixing platform, the connector is disposed in the connecting fixing groove, and the connector is perpendicularly connected to the control board.

[0014] A further improvement to the above solution is that the protective connector is an aviation connector.

[0015] The beneficial effects of this utility model are: Compared to existing motor connections, this invention employs a protective connector, improving the reliability and stability of motor connections under complex operating conditions. The protective connector, via its dedicated connecting cable, electrically connects to the connector, providing a robust, shockproof, and secure electrical interface between the control board and external power or signal sources. This avoids poor contact or momentary power outages caused by vibration or pulling, making it particularly suitable for scenarios with continuous mechanical vibration, such as hub motors in industrial robots and mobile devices, ensuring the continuity of motor control signals and the stability of system operation. The protective connector itself possesses dustproof, splashproof, and corrosion-resistant properties. Its connecting cable is fixed to the first base and connected to the connector inside the housing, forming a sealed connection path from the outside to the inside. This effectively prevents external dust, oil, humid air, and other contaminants from entering the motor cavity through the cable interface, protecting the core control board and drive motor, extending the motor's lifespan, and reducing the failure rate caused by environmental factors. The drive motor connects to the first base via a second base. The control board is built-in, and the connector and protective connector are pre-installed, making the assembly of each component highly efficient. By integrating the control board inside the drive motor and structurally fixing it with a base, the entire motor system becomes compact and rationally laid out, reducing the occupation of external redundant space. This invention improves the performance, reliability, and applicability of motor products, possessing significant practical value and market competitiveness. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the motor with protective connector of this utility model; Figure 2 for Figure 1 Front view of the motor with protective connector in the middle; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 3 Enlarged diagram of point A in the diagram.

[0017] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. First base; 21. First bearing; 22. Second bearing; 23. Transmission output assembly; 24. Wiring cavity; 241. Wiring hole; 25. Heat transfer rib; 3. Second base; 3. Connecting and fixing groove; 31. Control fixing platform; 32. Drive motor; 4. Drive shaft; 41. Control board; 5. Connector; 6. Protective joint; 7. Connecting wire; 71. Cavity; 8. Internal cavity; 81. First step; 82. Second step; 83. Sealing connection part; 84. Seal; 85. Fixing slot; 86. Fixing ring; 861. Transmission connection part; 87. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-4As shown, in one embodiment of this utility model, a motor with a protective connector is provided, including a housing 1, a first base 2, a second base 3, a drive motor 4, a control board 5, a connector 6, and a protective connector 7. The housing 1 has a cavity 8, the first base 2 is disposed on the cavity 8, the second base 3 is used to connect the drive motor 4 to the first base 2, the control board 5 is disposed inside the drive motor 4, the connector 6 is disposed on the second base 3 and connected to the control board 5, and the protective connector 7 has a connecting wire 71, which is disposed on the first base 2 and electrically connected to the connector 6. This embodiment uses a protective connector 7, which improves the connection reliability and stability of the motor under complex working conditions. The protective connector 7 is electrically connected to the connector 6 through its dedicated connecting wire 71, providing a robust, shockproof, and non-loosening electrical interface between the control board 5 and an external power supply or signal source. This avoids poor contact or momentary power outages caused by vibration or pulling, and is especially suitable for scenarios with continuous mechanical vibration, such as hub motors of industrial robots and mobile devices, ensuring the continuity of motor control signals and the stability of system operation. The protective connector 7 itself possesses dustproof, splashproof, and corrosion-resistant properties. Its connecting cable 71 is fixed to the first base 2 and connected to the connector 6 inside the housing 1, forming a sealed connection path from the outside to the inside. This effectively prevents external dust, oil, humid air, and other contaminants from entering the motor cavity 8 through the cable interface, protecting the core control board 5 and drive motor 4, extending the motor's service life, and reducing the failure rate caused by environmental factors. The drive motor 4 is connected to the first base 2 via the second base 3. The control board 5 is built-in, and the connector 6 and protective connector 7 are pre-installed, making the assembly of each component efficient. Integrating the control board 5 inside the drive motor 4 and structurally fixing it through the base results in a compact and rationally laid-out motor system, reducing external redundant space occupation. The protective connector 7 allows for quick-release, facilitating installation and disassembly during use.

[0021] The cavity 8 includes a built-in cavity 81, a first step 82, and a second step 83 arranged sequentially. The drive motor 4 is disposed in the built-in cavity 81. The first base 2 is provided with a first bearing 21 connected to the first step 82 and a second bearing 22 connected to the second step 83. In this embodiment, the cavity 8, through its stepped structure of built-in cavity 81, first step 82, and second step 83, and connected to the first bearing 21 and second bearing 22 on the first base 2 respectively, achieves multiple beneficial effects, such as enhancing the rigidity and coaxial accuracy of the motor structure: the first and second steps 83 provide a precise and stable axial positioning foundation for the two bearings, ensuring the concentricity of the bearing installation, thereby effectively suppressing the radial runout and axial movement of the drive motor 4 spindle during high-speed operation, improving operational stability, control accuracy, and reducing noise. The stepped cavity 8 structure optimizes load distribution. The weight and operating load of the drive motor 4 are transferred to the steps of different heights through the two bearings, forming a more reasonable force support, reducing the load on individual bearings, and improving the overall structural load-bearing capacity and long-term reliability.

[0022] A sealing connection portion 84 is provided at the port of the cavity 8, and the sealing connection portion 84 is provided with a sealing element 85. The sealing element 85 is used to seal the connection portion 84 and the first base 2. In this embodiment, by providing a sealing connection portion 84 with a sealing element 85 at the port of the cavity 8, a highly efficient seal is achieved at the connection interface between the first base 2 and the cavity 8 of the outer shell 1. This effectively prevents contaminants such as dust, moisture, and oil from the external environment from entering the internal cavity 8 of the motor, improving the overall protection level of the motor and ensuring the long-term operational safety and reliability of the built-in drive motor 4, control board 5, and electrical connectors in harsh industrial environments.

[0023] A fixing groove 86 is provided at the port of the cavity 8, and a fixing ring 861 is provided within the fixing groove 86. The fixing ring 861 is used to fix the end of the second bearing 22. In this embodiment, by providing a fixing groove 86 and a fixing ring 861 at the port of the cavity 8, an efficient and reliable solution is provided for the axial fixation of the second bearing 22. This structure utilizes the mechanical locking force generated by the fixing ring 861 being embedded in the groove to firmly limit the outer ring of the second bearing 22 axially from the end, effectively preventing the bearing from shifting or even dislodging due to vibration or axial force during motor operation, greatly improving the operational stability and accuracy of the spindle system. The structure is simple, eliminating the need to machine complex threaded holes on the base or cavity 8. During assembly, only the ring needs to be embedded in the groove to complete the fixation, significantly simplifying the assembly process, improving production efficiency, and reducing manufacturing costs.

[0024] A transmission connection 87 is provided between the first step 82 and the second step 83. A transmission output component 23 is provided on the first base 2. The drive motor 4 is provided with a drive shaft 41, which is connected to the transmission output component 23. The transmission output component 23 is connected to the transmission connection 87. The drive motor 4 drives the transmission output component 23 to rotate via the drive shaft 41, thereby driving the outer shell 1 to rotate via the transmission connection 87. In this embodiment, by providing a transmission connection 87 between the first step 82 and the second step 83, and making it a linkage mechanism with the transmission output component 23 on the first base 2 and the drive shaft 41 of the drive motor 4, efficient and precise power transmission from the internal drive source to the outer shell 1 is achieved. When the drive shaft 41 drives the transmission output component 23 to rotate, the torque directly drives the outer shell 1 to rotate via the transmission connection 87. It greatly simplifies the traditional power transmission chain, eliminating the need for additional couplings or complex gear systems. This not only reduces the complexity and assembly difficulty of the mechanism and improves space utilization, but also effectively reduces energy loss, backlash, and vibration noise caused by multi-stage transmission, thereby improving overall transmission efficiency and response speed.

[0025] A wiring cavity 24 is provided on the first base 2, and a wiring hole 241 is connected to the wiring cavity 24. One end of the wiring hole 241 extends to the end of the first base 2, and one end of the connector 6 faces the wiring cavity 24. The connecting wire 71 is disposed in the wiring hole 241. Specifically, a sealant is used to connect the connecting wire 71 and the wiring hole 241. In this embodiment, by integrating the wiring cavity 24 and the wiring hole 241 on the first base 2 and sealing the connection between the connecting wire 71 and the wiring hole 241 with sealant, the standardized layout of the electrical connection wires 71 inside the motor and a high level of environmental protection are achieved. By injecting sealant into the wiring hole 241, a reliable static sealing barrier is formed. This barrier can effectively prevent external water vapor, dust, oil and other pollutants from entering the motor or the wiring cavity 24 through the cable gaps, significantly improving the overall protection level of the motor and ensuring the long-term stable operation and safe insulation of the drive motor 4, control unit and electrical connectors in harsh industrial environments such as humid and dusty conditions.

[0026] The first base 2 is provided with heat transfer ribs 25, which extend to the stator windings of the drive motor 4 and are used for heat conduction and dissipation of the stator windings. In this embodiment, by integrating heat transfer ribs 25 extending to the stator windings of the drive motor 4 on the first base 2, an efficient heat conduction path from the internal heat source to the external environment is constructed. Utilizing the high thermal conductivity of the metal base itself, the heat transfer ribs 25 act as thermal bridges, improving the thermal management efficiency of the motor, effectively reducing the operating temperature of the stator windings, and avoiding risks such as insulation material aging, magnetic performance decay, or even winding burnout caused by overheating, thereby significantly extending the service life and operational reliability of the motor.

[0027] The second base 3 is provided with a connecting fixing groove 31 and a control fixing platform 32. The control board 5 is mounted on the control fixing platform 32, and the connector 6 is mounted on the connecting fixing groove 31. The connector 6 is vertically connected to the control board 5. In this embodiment, by integrating the connecting fixing groove 31 and the control fixing platform 32 on the second base 3, a precise, stable, and spatially optimized installation foundation is provided for the control board 5 and the connector 6. The connector 6 achieves precise positioning and mechanical fixation by embedding in the connecting fixing groove 31, effectively resisting vibration and impact; the control board 5 is mounted on the control fixing platform 32, ensuring its flatness and stability. In particular, the vertical connection between the connector 6 and the control board 5 greatly saves horizontal installation space, making the overall structure more compact and facilitating the miniaturization and modular design of the motor.

[0028] The protective connector 7 is an aviation connector. In this embodiment, by selecting an aviation connector as the protective connector 7, the protection level and environmental adaptability of the motor's external electrical connection are improved. Aviation connectors have standardized and serialized interface forms. They typically employ a multi-core, high-density contact design internally and integrate a metal shell 1, an anti-vibration locking mechanism, and a rubber sealing ring. This enables reliable sealing with an IP67 or higher rating, effectively resisting external moisture, dust, oil, and salt spray corrosion, ensuring the long-term electrical continuity and insulation safety of the connector 6 in harsh industrial environments such as humidity, dust, and vibration.

[0029] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A motor with a protective connector, characterized in that: It includes a housing, a first base, a second base, a drive motor, a control board, a connector, and a protective connector; the housing has a cavity, the first base is disposed on the cavity, the second base is used to connect the drive motor to the first base, the control board is disposed inside the drive motor, the connector is disposed on the second base and connected to the control board, and the protective connector has a connecting wire, which is disposed on the first base and electrically connected to the connector.

2. The motor with protective connector according to claim 1, characterized in that: The cavity includes an inner cavity, a first step, and a second step arranged sequentially. The drive motor is disposed in the inner cavity. The first base is provided with a first bearing connected to the first step and a second bearing connected to the second step.

3. The motor with protective connector according to claim 2, characterized in that: A sealing connection is provided at the port of the cavity, and a sealing element is provided at the sealing connection. The sealing element is used to seal the connection between the sealing connection and the first base.

4. The motor with protective connector according to claim 2, characterized in that: A fixing slot is provided at the port of the cavity, and a fixing ring is provided in the fixing slot. The fixing ring is used to fix the end of the second bearing.

5. The motor with protective connector according to claim 2, characterized in that: A transmission connection is provided between the first step and the second step, a transmission output component is provided on the first base, the drive motor is provided with a drive shaft, the drive shaft is connected to the transmission output component, and the transmission output component is connected to the transmission connection; the drive motor drives the transmission output component to rotate through the drive shaft, so as to drive the outer shell to rotate through the transmission connection.

6. The motor with protective connector according to claim 1, characterized in that: The first base is provided with a wiring cavity, the wiring cavity is connected to a wiring hole, one end of the wiring hole extends to the end of the first base, and one end of the connector faces the wiring cavity; the connecting wire is disposed in the wiring hole.

7. The motor with a protective connector according to claim 6, characterized in that: A sealant is used to connect the connecting wire to the wiring hole.

8. The motor with protective connector according to claim 1, characterized in that: The first base is provided with heat transfer ribs that extend to the stator winding of the drive motor and are used for heat conduction and heat dissipation of the stator winding.

9. The motor with protective connector according to claim 1, characterized in that: The second base is provided with a connection fixing groove and a control fixing platform. The control board is set on the control fixing platform, and the connector is set in the connection fixing groove. The connector is perpendicularly connected to the control board.

10. The motor with protective connector according to claim 1, characterized in that: The protective connector is an aviation connector.

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