Integrated motor

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an integrated motor which comprises a shell, an iron core, a magnet, an output shaft and a bearing, the iron core is fixedly arranged on the inner side of the shell, a coil winding is wound on the outer side of the iron core, the magnet is located on the inner side of the iron core and fixedly sleeved on the outer side of the output shaft, and the output shaft is connected with the shell through the bearing. The shell and the iron core are integrally formed through injection molding. According to the utility model, the shell and the iron core are integrally injection-molded and do not need to be fixedly arranged, so that the assembly difficulty of the shell and the iron core is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an integrated motor. Background Art

[0002] The motor usually includes a housing, an iron core, a magnet, an output shaft, and bearings. After the processing of each component is completed, the coil winding is wound around the outside of the iron core. The iron core needs to be fixed inside the housing, the magnet is set inside the iron core, and the magnet fixing sleeve is set outside the output shaft. The output shaft is connected to the housing through the bearing and the bearing sleeve to complete the main assembly of the motor. Among them, the magnet and the output shaft can rotate, and the coil winding, iron core, and magnet form the power structure of the motor.

[0003] During the motor assembly process, the iron core usually needs to be fixed on the inside of the casing through processes such as press-fitting or shrink-fitting. Since the accuracy of the iron core directly affects the overall quality of the motor and the iron core is usually heavy, the process difficulty is high when assembling the two. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides an integrated motor.

[0005] An integrated motor comprises a shell, an iron core, a magnet, an output shaft and a bearing, wherein the iron core is fixedly arranged on the inner side of the shell, a coil winding is wound on the outer side of the iron core, the magnet is located on the inner side of the iron core, the magnet is fixedly sleeved on the outer side of the output shaft, the output shaft is connected to the shell through the bearing, and the shell and the iron core are integrally injection molded.

[0006] Optionally, the housing comprises:

[0007] Middle sleeve portion;

[0008] The inner sleeve portion is located inside the middle sleeve portion, the top end of the inner sleeve portion is connected to the middle sleeve portion in a blocked state, and a circle of iron core accommodating cavity with an open bottom end is formed between the inner sleeve portion and the middle sleeve portion;

[0009] The core comprises:

[0010] The outer ring portion is accommodated in the iron core accommodating cavity, and the bottom end thereof extends out from below the iron core accommodating cavity;

[0011] A plurality of inserting parts are arranged on the inner wall of the outer ring part along the inner wall circumferentially of the outer wall of the outer ring part, pass through the outer side of the inner sleeve part and extend the ends of the inserting parts out of the inner side of the inner sleeve part to form an end stopper, and the coil winding is wound outside the inserting parts.

[0012] Optionally, the magnet is located inside the insertion portion, the output shaft extends out of the top end of the middle sleeve portion, and the bearing is located inside the middle sleeve portion and above the inner sleeve portion.

[0013] Optionally, the insertion portion has a yoke portion and a tooth portion, the yoke portion is connected to the inner wall of the outer ring portion, and the tooth portion is an end stopper.

[0014] Optionally, a plurality of protrusions are circumferentially arranged on the inner side surface of the inner sleeve portion, the protrusions are hollow shell structures, and the outer sides of the protrusions are open structures, so that the inside of the protrusions is connected with the core accommodating cavity;

[0015] Each of the insertion parts is respectively inserted into the protruding part and the end portion extends out from the inner side of the protruding part to form the end stopper, and the coil winding is wound around the protruding part.

[0016] Optionally, the integrated motor further includes:

[0017] The power connection part is arranged at the bottom end of the inner sleeve part, the upper end of the outer peripheral edge is in contact with the bottom end of the outer ring part, and is connected to the coil winding through the power supply line inside the shell.

[0018] Optionally, the integrated motor further includes:

[0019] A three-phase wiring substrate is arranged below the power connection part, a plurality of pins are arranged on the periphery and the pins are powered by the circuit built into the substrate, and the top ends of the pins are plug-connected with the power connection part;

[0020] A power plug is connected to the bottom end of the three-phase wiring substrate and is connected to an external power supply circuit through the power plug.

[0021] Optionally, the shell further includes an outer sleeve portion, the outer sleeve portion is located outside the middle sleeve portion, and the output shaft extends out from above the outer sleeve portion.

[0022] Optionally, the integrated motor further includes:

[0023] A plurality of blades are arranged at the top end of the output shaft along the circumferential direction of the output shaft and are located in the upper inner part of the outer sleeve.

[0024] Optionally, a plurality of guide plates are circumferentially arranged between the outer sleeve portion and the middle sleeve portion, so that the outer sleeve portion is connected to the middle sleeve portion through the guide plates.

[0025] Optionally, the guide plate is spirally inclined.

[0026] Beneficial effects: The utility model has at least one or more of the following advantages:

[0027] 1. The housing and the iron core of the utility model are designed as an integral injection molding, and the two do not need to be fixed, which greatly reduces the difficulty of assembling the two.

[0028] 2. The structural design of the housing and the iron core of the utility model makes the overall structure of the integrated motor compact, and the end limiter can increase the relative induction area between the iron core and the magnet. The design of the protrusion can realize the positioning of the insertion part.

[0029] 3. The utility model limits the bottom end of the outer ring of the core while realizing power supply through the power connection part. The utility model can also supply power to the power connection part through the power plug and the three-phase wiring base plate and the plurality of pins thereon.

[0030] 3. The utility model achieves heat dissipation effect through the rotation of the blades.

[0031] 4. The outer sleeve part of the utility model can be used as the overall outer shell of the integrated motor. The guide plate design between it and the middle sleeve part allows airflow to be generated in the area between the guide plates when the blades rotate, blowing out the heat generated inside the integrated motor, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 for Figure 1 Exploded diagram of

[0034] Figure 3 for Figure 2 Further exploded diagram of;

[0035] Figure 4 for Figure 1 The main view of

[0036] Figure 5 for Figure 4 Middle AA section view;

[0037] Figure 6 for Figure 4 Middle BB section view;

[0038] Figure 7 for Figure 4 Middle CC section view;

[0039] Figure 8 for Figure 1 Schematic diagram of the structure except the blades;

[0040] Fig. 9 for Figure 8 Schematic diagram from another angle;

[0041] Fig.10 A schematic diagram of the structure of the housing of the utility model;

[0042] Fig.11 A structural schematic diagram of the iron core of the utility model;

[0043] Fig.12 A schematic diagram of the structure of the housing and the iron core of the utility model;

[0044] Fig.13 for Fig.12 Schematic diagram from another angle;

[0045] Fig.14 It is the main view of 12;

[0046] Fig.15 for Fig.14 Middle DD section view. DETAILED DESCRIPTION

[0047] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0048] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0049] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0050] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0051] Reference Figures 1 to 9The utility model provides an integrated motor, which includes a housing 1, an iron core 2, a magnet 3, an output shaft 4, a bearing 5 and a coil winding (not shown in the figure).

[0052] The iron core 2 is fixed inside the shell 1, the outer side of the iron core 2 is wound with a coil winding, the magnet 3 is located inside the iron core 2, the magnet 3 is fixedly sleeved outside the output shaft 4, the output shaft 4 is connected to the shell 1 through a bearing 5, the coil winding, the iron core 2, and the magnet 3 form a motor power structure, and the magnet 3 and the output shaft 4 can rotate. Among them, the shell 1 and the iron core 2 are integrally injection molded. As a result, the shell 1 and the iron core 2 do not need to be fixed, which greatly reduces the difficulty of assembling the two.

[0053] In one embodiment, referring to Figures 1 to 10 The housing 1 includes a middle sleeve portion 12 and an inner sleeve portion 13. Both the middle sleeve portion 12 and the inner sleeve portion 13 are cylindrical structures, the inner sleeve portion 13 is located inside the middle sleeve portion 12, the top end of the inner sleeve portion 13 is connected to the middle sleeve portion 12 in a blocked state, and a circle of iron core accommodating cavity with an open bottom end is formed between the inner sleeve portion 13 and the middle sleeve portion 12, and the iron core accommodating cavity is used to accommodate the iron core.

[0054] Reference Figures 1 to 9 , Fig.11 The core 2 includes an outer ring portion 21 and a plurality of insert portions 22. The outer ring portion 21 is a ring-like structure, and is accommodated in the core accommodating cavity, and the bottom end of the outer ring portion 21 extends below the core accommodating cavity. A plurality of insert portions 22 are arranged on the inner wall of the outer ring portion 21 along the inner wall circumferential direction of the outer ring portion 21, and the insert portion 22 passes through the outer side of the inner sleeve portion 13 and the end portion extends out of the inner side of the inner sleeve portion 13 to form an end stop portion 23, and the outer side of the insert portion 22 is wound with a coil winding.

[0055] Reference Figures 1 to 9 The magnet 3 is a ring-like structure, the magnet 3 is located inside the insertion portion 22 , the output shaft 4 extends out of the top of the middle sleeve portion 12 , and the bearing 5 is located inside the middle sleeve portion 12 and above the inner sleeve portion 13 .

[0056] The structural design of the housing 1 and the iron core 2 of the present embodiment enables the end stopper 23 to increase the relative induction area between the iron core 2 and the magnet 3 while the overall structure of the integrated motor is compact.

[0057] In one embodiment, referring to Fig.11 The insertion portion 22 has a yoke portion and a tooth portion, the yoke portion is connected to the inner wall of the outer ring portion 21, and the tooth portion is the end stop portion 23.

[0058] At this time, between two adjacent insertion portions 22 is an iron core slot for winding the coil winding.

[0059] In one embodiment, referring to Fig.10The inner side surface of the inner sleeve portion 13 is circumferentially provided with a plurality of protrusions 14, the protrusion 14 is a hollow shell 1 structure, and the outer side of the protrusion 14 is an open structure, that is, a protrusion communication port 141 communicating with the inside and outside is provided on the outer side of the protrusion 14, so that the inside of the protrusion 14 is connected with the core accommodating cavity.

[0060] Reference Figures 12 to 15 Each insertion portion 22 is respectively inserted into the protruding portion 14 and the end portion extends from the inner side of the protruding portion 14 to form an end stopper 23 , and the coil winding is still wound around the insertion portion 22 .

[0061] At this time, between two adjacent protrusions 14 is an iron core slot for winding the coil winding.

[0062] In one embodiment, referring to Figures 1 to 5 , Fig. 9 , Fig.10 , Fig.13 and Fig.14 The integrated motor further includes an electric connection portion 6, which is disposed at the bottom end of the inner sleeve portion 13, and the upper end of the outer peripheral edge of the electric connection portion 6 abuts against the bottom end of the outer ring portion 21. The electric connection portion 6 is connected to the coil winding through a power supply line pre-buried in the housing 1 to realize the power supply operation of the coil winding. The utility model limits the bottom end of the outer ring portion 21 of the core while realizing power supply through the electric connection portion 6.

[0063] In one embodiment, referring to Figures 1 to 5 The integrated motor further includes a three-phase wiring substrate 7 and a power plug 8. The three-phase wiring substrate 7 is arranged below the power connection portion 6. A plurality of pins 71 are arranged on the periphery of the three-phase wiring substrate 7 and the pins 71 are powered by the circuit built into the substrate. The top of the pins 71 is plugged and connected to the power connection portion 6. The power plug 8 is connected to the bottom of the three-phase wiring substrate 7 and is connected to an external power supply circuit through the power plug 8.

[0064] The utility model supplies power to each coil winding through the power plug 8 via the built-in circuit of the substrate, a plurality of pins 71 , the power connection part 6 and the power supply circuit inside the housing 1 .

[0065] In one embodiment, referring to Figures 1 to 10 The housing 1 further includes an outer sleeve portion 11 , which is a cylindrical structure. The outer sleeve portion 11 is located outside the middle sleeve portion 12 , and the output shaft 4 extends out from above the outer sleeve portion 11 .

[0066] In one embodiment, referring to Figures 1 to 5 The integrated motor further includes a plurality of blades 9, which are arranged at the top of the output shaft 4 along the circumference of the output shaft 4. The blades 9 are located in the upper inner part of the outer sleeve 11. The rotation of the output shaft 4 drives the blades 9 to rotate accordingly, thereby achieving a heat dissipation effect.

[0067] In one embodiment, referring to Figures 1 to 10 A plurality of guide plates 15 are provided between the outer sleeve portion 11 and the middle sleeve portion 12 along the circumferential direction, so that the outer sleeve portion 11 is connected to the middle sleeve portion 12 through the guide plates 15. When the blades rotate, airflow can be generated in the area between the guide plates 15 to blow out the heat generated inside the integrated motor, thereby improving the heat dissipation effect.

[0068] In one embodiment, the guide plate 15 is in a spirally inclined shape.

[0069] In one embodiment, referring to Figure 2 , Figure 3 and Figure 5 , the bearing 5 is connected to the housing 1 through the bearing sleeve 51. In another embodiment, the bearing 5 is connected to the middle sleeve portion 12 through the bearing sleeve 51, and the bearing 5 and the bearing sleeve 51 are both located above the inner sleeve portion 13.

[0070] In one embodiment, referring to Figure 3 and Figure 5 There are two bearings 5 ​​, which are arranged up and down, and a spacer 52 is provided between the two bearings 5 ​​to separate them.

[0071] The spacer is preferably a spring, and the spring is sleeved outside the output shaft.

[0072] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. An integrated motor, comprising a housing, an iron core, a magnet, an output shaft and a bearing, wherein the iron core is fixedly arranged on the inner side of the housing, a coil winding is wound on the outer side of the iron core, the magnet is located on the inner side of the iron core, the magnet is fixedly sleeved on the outer side of the output shaft, and the output shaft is connected to the housing through the bearing, characterized in that: The shell and the iron core are integrally injection molded.

2. The integrated motor according to claim 1, characterized in that: The housing comprises: Middle sleeve portion; The inner sleeve portion is located inside the middle sleeve portion, the top end of the inner sleeve portion is connected to the middle sleeve portion in a blocked state, and a circle of iron core accommodating cavity with an open bottom end is formed between the inner sleeve portion and the middle sleeve portion; The core comprises: The outer ring portion is accommodated in the iron core accommodating cavity, and the bottom end thereof extends out from below the iron core accommodating cavity; A plurality of inserting parts are arranged on the inner wall of the outer ring part along the inner wall circumferentially of the outer wall of the outer ring part, pass through the outer side of the inner sleeve part and extend the ends of the inserting parts out of the inner side of the inner sleeve part to form an end stopper, and the coil winding is wound outside the inserting parts.

3. The integrated motor according to claim 2, characterized in that: The magnet is located inside the insertion portion, the output shaft extends out of the top end of the middle sleeve portion, and the bearing is located inside the middle sleeve portion and above the inner sleeve portion.

4. The integrated motor according to claim 2, characterized in that: The inserting portion comprises a yoke portion and a tooth portion, the yoke portion is connected to the inner wall of the outer ring portion, and the tooth portion is an end stopper.

5. The integrated motor according to claim 2, characterized in that: The inner side surface of the inner sleeve portion is circumferentially provided with a plurality of protrusions, the protrusions are hollow shell structures, and the outer sides of the protrusions are open structures, so that the inside of the protrusions is connected with the core accommodating cavity; Each of the insertion parts is respectively inserted into the protruding part and the end portion extends out from the inner side of the protruding part to form the end stopper, and the coil winding is wound around the protruding part.

6. The integrated motor according to claim 2, characterized in that: The integrated motor further comprises: The power connection part is arranged at the bottom end of the inner sleeve part, the upper end of the outer peripheral edge is in contact with the bottom end of the outer ring part, and is connected to the coil winding through the power supply line inside the shell.

7. The integrated motor according to claim 6, characterized in that: The integrated motor further comprises: A three-phase wiring substrate is arranged below the power connection part, a plurality of pins are arranged on the periphery and the pins are powered by the circuit built into the substrate, and the top ends of the pins are plug-connected with the power connection part; A power plug is connected to the bottom end of the three-phase wiring substrate and is connected to an external power supply circuit through the power plug.

8. The integrated motor according to any one of claims 2 to 7, characterized in that: The housing further comprises an outer sleeve portion, the outer sleeve portion is located outside the middle sleeve portion, and the output shaft extends above the outer sleeve portion.

9. The integrated motor according to claim 8, characterized in that: The integrated motor further comprises: A plurality of blades are arranged at the top end of the output shaft along the circumference of the output shaft and located at the inner upper part of the outer sleeve; and / or, A plurality of guide plates are arranged between the outer sleeve portion and the middle sleeve portion along the circumferential direction, so that the outer sleeve portion is connected to the middle sleeve portion through the guide plates.

10. The integrated motor according to claim 9, characterized in that: The guide plate is in a spirally inclined shape.

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