A brush motor with built-in lead and inductance

Abstract

This application discloses a floor brush motor with built-in leads and inductors, characterized by comprising: a housing, a rotor rotatably disposed within the housing, an end cover mounted at one end of the housing, an inductor installed within the end cover, a wire harness connected to the end cover, the inductor electrically connected to the wire harness, the inductor electrically connected to the windings in the rotor, the wire harness extending outside the end cover, and a connector provided at the end of the wire harness away from the end cover; by placing the inductor in the end cover, the inductor is located at the source of electromagnetic noise, and when current enters, it first passes through the power supply element and then directly enters the working circuit of the windings, effectively reducing electromagnetic radiation. Simultaneously, the pluggable interface makes wire harness connection faster, more convenient, reliable, and plug-and-play, simplifying the installation process and making disassembly quicker.

Description

Technical Field

[0001] This utility model relates to the field of floor brush motor technology, and in particular to a floor brush motor with built-in leads and inductors. Background Technology

[0002] In traditional floor brush motor architecture, EMI filter circuits are usually external circuit boards. Current first passes through the filter board and then enters the motor through the power leads. This method causes the power leads to become radiating antennas for electromagnetic noise. At the same time, traditional terminal connection methods require cumbersome soldering or screw fixing during equipment assembly and maintenance, which significantly increases production costs and after-sales maintenance difficulty.

[0003] Therefore, there is an urgent need to design a floor brush motor with built-in leads and inductors to solve one or more technical problems that are lacking in the existing technology. Summary of the Invention

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a ground brush motor with built-in leads and inductors, characterized in that it includes: a housing, a rotor rotatably disposed inside the housing, an end cover installed at one end of the housing, an inductor installed inside the end cover, a wire harness connected to the end cover, the inductor being electrically connected to the wire harness, the inductor being electrically connected to the windings in the rotor, the wire harness being led out to the outside of the end cover, and a connector being provided at the end of the wire harness away from the end cover.

[0005] In a preferred embodiment, one end of the rotor is provided with a rotor impeller, one side of the rotor impeller is provided with a plurality of outwardly extending protrusions, and the end of the protrusion is also provided with a plug-in block. The rotor impeller is spaced apart from the rotor through the protrusions, and the plug-in block is inserted into the iron core gap of the rotor.

[0006] In a preferred embodiment, an air inlet is provided at the end of the housing away from the end cap, and an air outlet is provided on the side of the housing at the end with the end cap, the air outlet corresponding to the rotor impeller.

[0007] In a preferred embodiment, the rotor is further provided with a pressure cap at one end where the end cap is located, the pressure cap restricting the end cap within the end of the rotor.

[0008] In a preferred embodiment, the gland is further provided with several through holes.

[0009] The beneficial effects of this utility model are: by placing the inductor element in the end cover, the inductor element is located at the source of electromagnetic noise. When the current enters, it first passes through the power supply element and then directly enters the working circuit of the winding, effectively reducing electromagnetic radiation. At the same time, the pluggable interface makes the connection of the wire harness faster, more convenient, more reliable and plug-and-play, and the installation procedure is simpler and the disassembly is also faster. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the structure of the outer shell of this utility model; Figure 4 This is a schematic diagram of the rotor impeller of this utility model.

[0011] In the picture: 10. Housing; 11. Rotor; 12. Magnetic component; 13. Rotor impeller; 14. Protrusion; 15. Connector block; 16. End cap; 17. Pressure cap; 18. Wiring harness; 19. Connector; 20. Air inlet; 21. Air outlet. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0014] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0015] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0016] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] like Figures 1-4 As shown, this utility model provides a floor brush motor with built-in leads and inductors, characterized in that it includes: a housing 10, a rotor 11 rotatably disposed inside the housing 10, an end cover 16 installed at one end of the housing 10, an inductor (not shown) installed inside the end cover 16, a wire harness 18 connected to the end cover 16, the inductor being electrically connected to the wire harness 18, the inductor being electrically connected to the windings in the rotor 11, the wire harness 18 extending out of the end cover 16, and a connector 19 provided at the end of the wire harness 18 away from the end cover 16; Specifically, this embodiment uses a brushed motor. A magnetic element 12 is attached to the inner wall of the housing 10, forming a stator with the housing 10. A rotor 11 is also provided inside the housing 10, with windings wound around its core. An end cover 16 is installed at one end of the housing 10, securing the rotor 11 within the housing 10. Electrodes are provided on the end cover 16, connected to the windings. An inductor, such as a common-mode choke or differential-mode inductor for power filtering, is also installed on the end cover 16. This inductor is connected in series or parallel to the input line. A wire harness 18 is connected to the electrodes on the end cover 16. The connection method between the wire harness 18 and the electrodes is preferably a universal plug-in type, which is faster than traditional welding or screw fixing methods. The wiring harness 18 is fast, convenient, reliable, and plug-and-play. The other end of the harness is connected to a connector 19, which can be either male or female, facilitating external connections. In this way, during assembly or maintenance, simply align the connector 19 of the harness 18 with the interface on the motor and gently push to achieve a reliable electrical connection and mechanical fixation. A locking structure can be installed to prevent the harness 18 from loosening; this is a conventional technology and will not be elaborated upon here. When the harness 18 is connected to an external source, the current passes through the harness 18 and is first filtered by an inductor before entering the winding. Since the inductor is directly housed in the end cover 16, the connection path between the inductor and the winding is very short. The inductor is located at the source of electromagnetic noise, effectively reducing electromagnetic radiation.

[0018] Furthermore, one end of the rotor 11 is provided with a rotor impeller 13, one side of the rotor impeller 13 is provided with a plurality of outwardly extending protrusions 14, and the end of the protrusion 14 is also provided with a plug-in block 15. The rotor impeller 13 is spaced apart from the rotor 11 through the protrusions 14, and the plug-in block 15 is inserted into the iron core gap of the rotor 11. Specifically, by setting up the rotor impeller 13, when the rotor 11 rotates, it drives the rotor impeller 13 to rotate, and the rotor impeller 13 drives the air inside the outer casing 10 to flow, so as to remove the heat inside the outer casing 10 and achieve heat dissipation.

[0019] Furthermore, an air inlet 20 is provided at the end of the outer casing 10 away from the end cover 16, and an air outlet 21 is provided on the side of the end of the outer casing 10 where the end cover 16 is located. The air outlet 21 corresponds to the rotor impeller 13. Specifically, by forming an airflow duct through the air inlet 20 and the air outlet 21, heat can be carried away more efficiently, and air can enter and exit, resulting in better heat dissipation efficiency.

[0020] Furthermore, the rotor 11 is provided with a pressure cap 17 at one end where the end cap 16 is located, and the pressure cap 17 restricts the end cap 16 within the end of the rotor 11; the pressure cap 17 is also provided with several through holes; Specifically, the pressure cap 17 restricts the end cap 16 inside the rotor 11, and the pressure cap 17 is also provided with a through hole for air flow, so that when the rotor impeller 13 rotates, air can also flow out from the end cap 16 and the pressure cap 17, thereby improving heat dissipation efficiency.

[0021] In summary, by placing the inductor in the end cover 16, the inductor is located at the source of electromagnetic noise. When the current enters, it first passes through the power supply element and then directly enters the working circuit of the winding, effectively reducing electromagnetic radiation. At the same time, the pluggable interface makes the connection of the wire harness 18 faster, more convenient, more reliable, and plug-and-play. The installation procedure is simpler and the disassembly is also faster.

[0022] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A ground brush motor with built-in leads and inductors, characterized in that, include: The housing contains a rotor that rotatably rotates within it. One end of the housing is fitted with an end cap, and an inductor is installed inside the end cap. A wire harness is also connected to the end cap, and the inductor is electrically connected to the wire harness. The inductor is also electrically connected to the windings in the rotor. The wire harness extends out of the end cap, and a connector is provided at the end of the wire harness away from the end cap.

2. The ground brush motor with built-in leads and inductors according to claim 1, characterized in that, One end of the rotor is provided with a rotor impeller, and one side of the rotor impeller is provided with several outwardly extending protrusions. The end of the protrusion is also provided with a plug-in block. The rotor impeller is spaced apart from the rotor through the protrusions, and the plug-in block is inserted into the iron core gap of the rotor.

3. The ground brush motor with built-in leads and inductors according to claim 2, characterized in that, An air inlet is provided at the end of the outer casing away from the end cap, and an air outlet is provided on the side of the end of the outer casing where the end cap is located, with the air outlet corresponding to the rotor impeller.

4. The ground brush motor with built-in leads and inductors according to claim 1, characterized in that, The rotor is provided with a pressure cap at one end where the end cap is located, and the pressure cap restricts the end cap within the end of the rotor.

5. The ground brush motor with built-in leads and inductors according to claim 4, characterized in that, The cover is also provided with several through holes.

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