Motor easy and convenient to assemble

Abstract

The utility model discloses a motor easy and convenient to assemble. The motor comprises a stator assembly, a rotor assembly arranged in the stator assembly, and a controller installed in the stator assembly. The stator assembly comprises a winding stator and an insulation end plate arranged on the winding stator, the insulation end plate comprises an annular support body and a motor supporting foot integrally formed with the support body, the support body is provided with a plurality of wiring terminals which can be inserted into the controller to be connected with the controller, and the stator assembly further comprises a plastic package shell formed through injection molding. The winding stator and the insulation end plate are integrally and plastically packaged to form the plastic package shell, the vibration energy transmission of the motor is greatly reduced, and the connection of the controller and the winding stator control line or the power line adopts a plug-in connection mode instead of a traditional welding mode, so that the assembly process is simplified, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a motor that assembly is simple. BACKGROUND

[0002] With the requirement of motor miniaturization and lightening is continuously improved, the design and manufacturer of upstream parts are faced with the challenge of reducing motor volume, reducing weight and improving structural compactness and lightening. The common plastic package motor in the current market is mainly composed of plastic package stator assembly, rotor assembly, rear end cover and controller. The plastic package stator assembly contains lead-out terminal, which is used for soldering connection with the controller. However, this traditional connection mode has multiple deficiencies: it needs to weld multiple soldering points (such as U / V / W / ground) one by one, which not only reduces production efficiency, but also increases operation difficulty; another significant problem is that the effective use area of the PCB board in the existing motor design is limited, due to the limitation of structural space size, only a smaller area of PCB board can be used, and a small number of components are arranged, thereby limiting the number of functions that the motor can realize, which cannot meet the expectations of users with more functional requirements. SUMMARY

[0003] In view of this, the utility model aims at providing a motor that is simple to assemble, which has the characteristics of simplifying the assembly process and improving the reliability of the motor.

[0004] The utility model discloses a technical scheme that is adopted to solve the technical problems:

[0005] The application provides a motor that is simple to assemble, which comprises a stator assembly, a rotor assembly arranged in the stator assembly, and a controller installed in the stator assembly; the stator assembly comprises a winding stator and an insulating end plate arranged on the winding stator; the insulating end plate comprises an annular support body and a motor leg integrally formed with the support body; a plurality of terminal pins capable of being connected with the controller by plug-in are arranged on the support body; the stator assembly further comprises an injection-molded plastic package shell; the winding stator and the insulating end plate are integrally plastic packaged to form the plastic package shell.

[0006] Further, the application further provides that the terminal pins are exposed on the upper surface of the plastic package shell, and a terminal plug is arranged on the upper end surface of the terminal pin; the controller is provided with a terminal port capable of being plug-in matched with the terminal plug.

[0007] Further, the application further provides that a rotor assembly end hole is formed in the middle of the plastic package shell, and a bearing end cover is installed on the upper end surface of the end hole; the insulating end plate is provided with buckle members exposed on both sides of the end hole, and the bearing end cover is in clamping cooperation with the buckle members.

[0008] Further, the application also provides that the bearing end cover comprises two mounting side ears on both sides, the mounting side ear is provided with a clamping hole; the buckle piece comprises two gap-opposed buckle rods with a fan-shaped cross section, the upper end of the buckle rod forms a conical surface, and the lower end of the conical surface forms a stepped surface for abutting around the clamping hole.

[0009] Further, the application also provides that the motor foot is arranged around the outside of the support body and is exposed to the outside wall of the plastic encapsulation shell.

[0010] Further, the application also provides that the insulating end plate is connected with an external power supply line on one side, the power supply line is connected with two wire terminals, and an end ear for leading out and fixing the power supply line is formed on one side of the outer wall of the plastic encapsulation shell.

[0011] Further, the application also provides that the wire terminal is connected to the control line led out by the stator assembly, and the control line is plastic encapsulated in the plastic encapsulation shell.

[0012] Further, the application also provides that the plastic encapsulation shell is made of injection molding of high-rigidity and small-damping-ratio injection molding material, and the insulating end plate is made of relatively soft and low-rigidity insulating material.

[0013] Preferably, the plastic encapsulation shell is made of BMC injection molding material, and the insulating end plate is made of PBT or nylon material.

[0014] Further, the application also provides that the motor end cover is installed on the upper end of the stator assembly.

[0015] The beneficial effects of the utility model are:

[0016] 1. The motor provided by the application is simple to assemble, comprising a stator assembly, a rotor assembly arranged in the stator assembly, and a controller arranged in the stator assembly; the stator assembly comprises a winding stator, an insulating end plate arranged on the winding stator, and a motor foot integrally formed with the support body; the winding stator and the insulating end plate are integrally formed by plastic encapsulation in a plastic encapsulation shell. Further, the plastic encapsulation shell is made of high-rigidity and small-damping-ratio injection molding material such as BMC, and the insulating end plate is made of relatively soft and low-rigidity insulating material such as PBT or nylon material, which is beneficial to greatly reducing the vibration energy transmission of the motor; moreover, the insulating end plate can be designed according to different types of motors, which is more flexible, has strong applicability, improves the reliability and service life of the motor, and can also save manufacturing cost compared with the traditional mode of using an entire stator assembly injection molding mold.

[0017] 2. The connection of the controller with the control wire or power wire of the winding stator is replaced by the plug-in connection mode instead of the traditional welding mode, which simplifies the assembly process and improves the production efficiency. On the other hand, the controller avoids the opening and is directly installed in the stator assembly, which increases the effective use area of the PCB and realizes more functions. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the appearance structure of the motor;

[0019] Figure 2 is a schematic view of the explosion structure of the motor;

[0020] Figure 3 is a schematic view of the structure of the insulation end plate and the winding stator;

[0021] Figure 4 is a schematic view of the structure of the insulation end plate;

[0022] Figure 5 is a schematic view of the structure of the stator assembly after plastic packaging;

[0023] Figure 6 is a schematic view of the cooperation of the bearing end cover and the buckle. DETAILED DESCRIPTION

[0024] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description, not all.

[0025] With reference to Figures 1-3 , the utility model proposes a motor which is easy to assemble, comprising a stator assembly 1, a rotor assembly 3 arranged in the stator assembly 1, and a controller 4 installed in the stator assembly 1;

[0026] The stator assembly 1 comprises a winding stator 12, an insulation end plate 10 arranged on the winding stator 12, the insulation end plate 10 comprising an annular support body 100 and motor feet 101 integrally formed with the support body 100, a plurality of terminal pins 102 arranged on the support body 100 and capable of being plugged with the controller 4 to be connected,

[0027] The stator assembly 1 further comprises an injection molded plastic packaging shell 11, and the winding stator 12 and the insulation end plate 10 are integrally plastic packaged to form the plastic packaging shell 11.

[0028] Specifically, the stator assembly 1 comprises a winding stator 12 and an insulating end plate 10, the insulating end plate 10 is integrally formed with the bracket body 100, and a plurality of terminal posts 102 are arranged on the bracket body 100, and the terminal posts 102 are connected to the controller 4 in a plug-in manner. The stator assembly 1 and the insulating end plate 10 are plastic encapsulated in the plastic encapsulation shell 11 through an injection molding process, and the stator assembly 1, the rotor assembly 3 and the controller 4 are designed in an integrated manner, thereby simplifying the assembly process.

[0029] Further, the winding stator 12 is one of the core components of the motor, and an electromagnetic field is formed through a winding process to drive the rotor assembly 3 to rotate. The insulating end plate 10 is used to support the winding stator 12 and provide electrical connection. The bracket body 100 is integrally formed with the insulating end plate 10 to form a whole structure, thereby enhancing the mechanical strength. The terminal posts 102 are arranged on the bracket body 100 and used for electrical connection with the controller 4. The plastic encapsulation shell 11 is formed by an injection molding process, and the winding stator 12 and the insulating end plate 10 are encapsulated in the plastic encapsulation shell 11 to form an integrated structure, thereby having good sealing performance and mechanical strength.

[0030] On the other hand, preferably, the plastic encapsulation shell 11 is formed by BMC injection molding, and the insulating end plate 10 is made of PBT or nylon material which is relatively soft and has low rigidity, thereby greatly reducing the vibration energy transmission of the motor. Moreover, the insulating end plate 10 can be adjusted in structure design according to different types of motors, and compared with the traditional injection molding mold of the whole stator assembly, the design is more flexible and has stronger applicability.

[0031] Referring to Figure 3 The terminal posts 102 are exposed on the upper surface of the plastic encapsulation shell 11, and the terminal posts 102 are provided with terminal plugs 120 on the upper end surfaces, and the controller 4 is provided with terminal ports 40 which can be plugged with the terminal plugs 120.

[0032] Further, by exposing the terminal posts 102 on the upper surface of the plastic encapsulation shell 11 and arranging the terminal plugs 120 on the upper end surfaces of the terminal posts 102, the plug-in connection with the controller 4 can be achieved, thereby avoiding the tedious process of welding one by one. This design not only simplifies the assembly process, improves the production efficiency, but also reduces the operation difficulty. In addition, through the plug-in connection, the area of the PCB board can be more flexibly utilized to arrange more components, thereby meeting the demand of users for more functions of the motor.

[0033] Referring to Figures 5-6 The plastic encapsulation shell 11 is formed with an end hole 110 for accommodating the rotor assembly 3, and the bearing end cover 5 is arranged on the upper end surface of the end hole 110. The insulating end plate 10 is provided with buckle members 103 exposed on both sides of the end hole 110, and the bearing end cover 5 is in clamping connection with the buckle members 103.

[0034] Further, the bearing end cover 5 separates the motor unit from the controller 4, the PCB board has a larger effective area, more electronic components can be arranged without increasing the outer diameter, more functions can be realized, and different user requirements can be met.

[0035] Preferably, the bearing end cover 5 includes two mounting side ears 50, and the mounting side ears 50 are provided with clamping holes 500; the buckle member 103 includes two buckle rods 1030 which are opposite to each other and have a sector shape in cross section, the upper end of the buckle rod 1030 is formed with a tapered surface 1031, and the lower end of the tapered surface 1031 is formed with a stepped surface 1032 used for abutting around the clamping hole 500.

[0036] Specifically, the end hole 110 in the middle of the plastic sealing shell 11 is used for accommodating the rotor assembly 3, and ensures that the rotor assembly 3 can stably operate during operation. The bearing end cover 5 is mounted on the upper end surface of the end hole 110, and is clamped and matched with the insulating end plate 10 through the buckle member 103, so that the bearing end cover 5 can be firmly fixed on the end hole 110, and the assembly process is simple and fast, and the problems of complex assembly and low efficiency in the prior art are solved. The buckle member 103 can be designed in various forms, and the structure thereof should ensure that the clamping hole 500 of the bearing end cover 5 is tightly matched, so as to realize stable clamping effect.

[0037] The motor support leg 101 is arranged around the outside of the support body 100 and is exposed to the outside wall of the plastic sealing shell 11. Specifically, the motor support leg 101 is integrally formed with the insulating end plate 10, and is made of PBT or nylon material which is relatively soft and has low rigidity. When the motor is installed and fixed, the motor support leg 101 plays a role of shock absorption and buffering, and further improves the stability and service life of the motor.

[0038] Referring to Figure 3 , Figure 4 The insulating end plate 10 is connected with an external power line 121 on one side, the power line 121 is connected with two of the terminal posts 102, and the outer wall of the plastic sealing shell 11 is formed with an end ear 104 used for leading out and fixing the power line 121. Specifically, the entire stator assembly 11 is connected with only two power lines 121, and the sealing performance of the motor design is further improved.

[0039] The terminal post 102 is connected with a control line led out by the stator assembly 1, and the control line is plastic sealed in the plastic sealing shell 11. Specifically, the terminal post 102 is six, and is respectively connected with U, V, W, a ground wire, and two power lines 121,

[0040] Further, the plug-in connection between the controller 4 and the terminal post 102 is free of leading-out wires and free of soldering connection. This design also eliminates the soldering process, avoids that molten tin liquid drops on some components of the controller, and avoids that tin beads are left in the motor to cause serious consequences such as motor burning, foreign matter jamming and non-rotation.

[0041] A motor end cover 2 is installed on the upper end of the stator assembly 1. The motor is encapsulated. The internal components can be further protected from dust and impurities, thereby improving the durability and reliability of the motor.

Claims

1. A motor that is easy to assemble, characterized in that, It includes a stator assembly (1), a rotor assembly (3) disposed within the stator assembly (1), and a controller (4) installed within the stator assembly (1); The stator assembly (1) includes a wound stator (12) and an insulating end plate (10) disposed on the wound stator (12). The insulating end plate (10) includes an annular support body (100) and a motor support foot (101) integrally formed with the support body (100). The support body (100) is provided with a plurality of terminals (102) that can be plugged into the controller (4) for electrical connection. The stator assembly (1) also includes an injection-molded plastic-encapsulated housing (11), wherein the wound stator (12) and the insulating end plate (10) are integrally encapsulated to form the plastic-encapsulated housing (11).

2. The easily assembled motor according to claim 1, characterized in that, The terminal block (102) is exposed on the upper surface of the plastic-encapsulated housing (11). A connector (120) is provided on the upper end face of the terminal block (102). The controller (4) is provided with a connector port (40) that can be plugged into the connector (120).

3. The easily assembled motor according to claim 1, characterized in that, The plastic-encapsulated housing (11) has an end hole (110) in the middle for accommodating the rotor assembly (3), and a bearing end cover (5) is installed on the upper end face of the end hole (110); the insulating end plate (10) is provided with a snap fastener (103) exposed on both sides of the end hole (110), and the bearing end cover (5) is engaged with the snap fastener (103).

4. The easily assembled motor according to claim 3, characterized in that, The bearing end cap (5) includes mounting lugs (50) on both sides, and the mounting lugs (50) are provided with snap-fit ​​holes (500); the snap-fit ​​member (103) includes two snap-fit ​​rods (1030) with opposite gaps and fan-shaped cross sections, the upper end of the snap-fit ​​rod (1030) forms a conical surface (1031), and the lower end of the conical surface (1031) forms a stepped surface (1032) for abutting against the area around the snap-fit ​​hole (500).

5. The easily assembled motor according to claim 1, characterized in that, The motor support (101) is arranged around the outside of the bracket body (100) and exposed on the outer wall of the plastic-sealed housing (11).

6. The easily assembled motor according to claim 1, characterized in that, An external power cord (121) is connected to one side of the insulating end plate (10), and the power cord (121) is connected to two terminals (102); an end ear (104) for leading out and fixing the power cord (121) is formed on one side of the outer wall of the plastic-encapsulated housing (11).

7. The easily assembled motor according to claim 1, characterized in that, The terminal block (102) is connected to a control line derived from the stator assembly (1), which is encapsulated in a plastic housing (11).

8. The easily assembled motor according to claim 1, characterized in that, The encapsulated housing (11) is injection molded from injection molding plastic with high stiffness and low damping ratio, and the insulating end plate (10) is made of relatively soft insulating material with low stiffness.

9. A motor with simple assembly according to claim 8, characterized in that, The encapsulated housing (11) is injection molded from BMC injection molding compound, and the insulating end plate (10) is made of PBT or nylon material.

10. A motor with simple assembly according to claim 1, characterized in that, The stator assembly (1) is covered with a motor end cover (2).

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