Intelligent integrated motor with built-in battery

Abstract

The invention relates to the technical field, and provides an intelligent integrated motor with a built-in battery, which comprises a casing, a mounting shaft rotationally penetrating through the casing, a stator arranged on the mounting shaft and a rotor arranged in the casing and matched with the stator, the intelligent integrated motor further comprises a first heat dissipation assembly used for heat dissipation of the stator and the rotor and a second heat dissipation assembly used for heat dissipation of the battery pack. The second heat dissipation assembly induces air from the outside into the battery pack through motor operation to form airflow circulation so as to achieve heat dissipation. The first heat dissipation assembly and the second heat dissipation assembly are responsible for heat dissipation of the stator, the rotor and the battery pack, the problem of heating superposition of the stator, the rotor and the battery pack is effectively solved, the overall heat dissipation effect of the intelligent integrated motor is greatly improved, and effective heat dissipation of the stator, the rotor and the battery pack is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wheel hub motors, and particularly relates to an intelligent integrated motor with a built-in battery. BACKGROUND

[0002] In recent years, electric balance cars, electric scooters and other traffic carriers have a light-weight and intelligent development trend, and small intelligent wheel hub motors, as the core driving components of the traffic carriers, have state monitoring, communication interaction and intelligent control capabilities by integrating driving control algorithms, sensor modules and communication units, etc., in order to pursue more optimal space utilization efficiency, more simple wiring and more lightweight structure, the industry trend is actively promoting the direct integration of power supply batteries (usually lithium-ion battery packs) in the internal space of the wheel hub motor, reducing the need for external connectors and improving the portability and reliability of the equipment.

[0003] However, this highly integrated design also brings serious thermal management challenges. On the one hand, during operation of the motor, the winding generates copper loss due to current passing through, and the iron core generates iron loss due to magnetic field changes, and these losses are all converted into heat. On the other hand, the built-in battery also generates heat when discharging, and when the motor and the battery work together in the same closed or semi-closed small space, the heat generated by the two will be superimposed, causing the heat density in the local area to rise sharply. The traditional heat dissipation method of arranging heat dissipation fins on the surface of the motor shell cannot meet the heat dissipation needs of such a motor (such a motor is actually used in balance car and scooter scenes, and considering the strict restrictions on cost, weight and structural complexity, it is usually impossible to use a liquid cooling circulation system or other active cooling solutions that require additional pumps, pipelines, radiators and other complex components).

[0004] Therefore, the present application provides an intelligent integrated motor with a built-in battery to solve the above problems. SUMMARY

[0005] Embodiments of the present application aim to provide an intelligent integrated motor with a built-in battery to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: An intelligent integrated motor with a built-in battery, comprising a shell, a mounting shaft rotating through the shell, a stator arranged on the mounting shaft, and a rotor arranged in the shell and matched with the stator, a battery pack is further arranged in the shell, the intelligent integrated motor further comprises a first heat dissipation assembly for heat dissipation of the stator and the rotor, and a second heat dissipation assembly for heat dissipation of the battery pack, the second heat dissipation assembly utilizes air drawn into the battery pack by motor operation to form an air circulation to achieve heat dissipation.

[0007] In an alternative, the first heat dissipation assembly comprises a heat absorbing plate arranged in the casing and located at the side of the stator and the rotor, and a closed plate rotatably arranged in one side of the casing, the mounting shaft is fixedly connected with the heat absorbing plate and the closed plate, the heat absorbing plate is uniformly provided with a plurality of heat conducting columns in the circumferential direction, the closed plate is embedded with a plurality of heat dissipation fins corresponding to the heat conducting columns, and one end of the heat conducting column away from the heat absorbing plate is connected with the corresponding heat dissipation fin.

[0008] In an alternative, the first heat dissipation assembly comprises a heat absorbing plate arranged in the casing and located at the side of the stator and the rotor, and a closed plate rotatably arranged in one side of the casing, the mounting shaft is fixedly connected with the heat absorbing plate and the closed plate, the heat absorbing plate is uniformly provided with a plurality of heat conducting columns in the circumferential direction, the closed plate is embedded with a plurality of heat dissipation fins corresponding to the heat conducting columns, and one end of the heat conducting column away from the heat absorbing plate is connected with the corresponding heat dissipation fin.

[0009] In an alternative, the mounting shaft is fixedly provided with a bearing plate, the battery pack is fixedly arranged on the bearing plate, and a shock absorbing pad is arranged between the battery pack and the bearing plate.

[0010] In an alternative, the battery pack comprises a loading member, a plurality of accommodation spaces are uniformly and separately arranged on the loading member in the circumferential direction, each of the accommodation spaces is provided with a battery pack matched in shape, a flow channel is arranged on the outer circle of each of the battery packs and is in communication, and the loading member is made of a heat conducting material.

[0011] In an alternative, the second heat dissipation assembly comprises an air guiding component for guiding external airflow into each of the flow channels, and an air duct arranged in the mounting shaft, the air outlet end of the flow channel is in communication with the air duct, and the end of the air duct is located outside the casing and is provided with a plurality of air outlets.

[0012] In an alternative, the air guiding component comprises an air guiding box arranged on the closed plate, the air guiding box is provided with an air inlet in the forward and backward directions of the intelligent integrated motor arrangement scene, a wind deflector is hingedly arranged in the air guiding box, the air guiding box is further provided with an air outlet, and the air inlet end of the flow channel is in communication with the air outlet.

[0013] In an alternative, the air inlet is provided with a filter for filtering dust In an alternative, the casing is further provided with a heat insulation plate for separating the stator, the rotor and the battery pack, and the heat insulation plate is fixedly arranged through the mounting shaft.

[0014] Compared with the prior art, the beneficial effects of the embodiment of the present application are as follows: The first heat dissipation assembly and the second heat dissipation assembly are responsible for dissipating heat of the stator and the rotor and the battery pack respectively, effectively solving the problem of heat superposition of the stator, the rotor and the battery pack, thereby greatly improving the overall heat dissipation effect of the intelligent integrated motor and ensuring effective heat dissipation of the stator, the rotor and the battery pack. The second heat dissipation assembly utilizes external air flow to form air circulation in the battery pack during motor operation, and carries away the heat generated by the battery pack through external air flow, thereby ensuring effective heat dissipation of the battery during discharging.

[0015] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. These drawings and description are not intended to limit the scope of the inventive concepts in any way, but rather to describe particular embodiments for the purpose of illustrating the inventive concepts to one of ordinary skill in the art.

[0017] Figure 1 The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. These drawings and description are not intended to limit the scope of the inventive concepts in any way, but rather to describe particular embodiments for the purpose of illustrating the inventive concepts to one of ordinary skill in the art.

[0018] Figure 2 The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. These drawings and description are not intended to limit the scope of the inventive concepts in any way, but rather to describe particular embodiments for the purpose of illustrating the inventive concepts to one of ordinary skill in the art. Figure 1 The enlarged view of A in FIG. 1.

[0019] Figure 3 The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. These drawings and description are not intended to limit the scope of the inventive concepts in any way, but rather to describe particular embodiments for the purpose of illustrating the inventive concepts to one of ordinary skill in the art. Figure 1 The enlarged view of B in FIG. 1.

[0020] Figure 4 The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. These drawings and description are not intended to limit the scope of the inventive concepts in any way, but rather to describe particular embodiments for the purpose of illustrating the inventive concepts to one of ordinary skill in the art. Figure 1 The enlarged view of C in FIG. 1.

[0021] Figure 5 The front view of the closing plate in the embodiment of the present application.

[0022] Figure 6 The structure schematic diagram of the battery pack in the embodiment of the present application.

[0023] Figure 7 The structure schematic diagram of the air inlet component in the embodiment of the present application.

[0024] Marked 1 - the casing, 2 - mounting shaft, 3 - stator, 4 - rotor, 5 - battery pack, 501 - load, 502 - put the grid, 503 - battery pack, 504 - flow channel, 6 - the first heat dissipation assembly, 601 - heat absorption plate, 602 - heat conduction column, 603 - closed plate, 604 - fin, 605 - rotating sleeve, 606 - rod, 607 - wind cup, 608 - brush, 7 - bearing plate, 8 - shock pad, 9 - heat insulation plate, 10 - the second heat dissipation assembly, 1001 - air duct, 1002 - air outlet, 1003 - air guide box, 1004 - air inlet, 1005 - air guide piece, 1006 - air outlet, 1007 - filter. DETAILED DESCRIPTION

[0025] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0026] Please refer to Figure 1 A built-in battery intelligent integrated motor, comprising a casing 1, a mounting shaft 2 rotating through the casing 1, a stator 3 arranged on the mounting shaft 2, and a rotor 4 arranged in the casing 1 and matched with the stator 3, wherein the casing 1 further comprises a battery pack 5, the intelligent integrated motor further comprises a first heat dissipation assembly 6 for heat dissipation of the stator 3 and the rotor 4, and a second heat dissipation assembly 10 for heat dissipation of the battery pack 5, wherein the second heat dissipation assembly 10 utilizes the motor operation to form air circulation in the battery pack 5 by external air induction to achieve heat dissipation. It should be noted that the intelligent integrated motor further comprises an intelligent control module, a sensor module, a communication module and the like (not shown in the figure), which are prior art, and therefore the connection relationship and operation logic between the modules will not be described here.

[0027] The first heat dissipation assembly 6 and the second heat dissipation assembly 10 are respectively responsible for heat dissipation of the stator and the rotor and the battery pack 5, effectively solving the problem of heat superposition of the stator and the rotor and the battery pack 5, thereby greatly improving the overall heat dissipation effect of the intelligent integrated motor and ensuring effective heat dissipation of the stator and the rotor and the battery pack 5; the second heat dissipation assembly 10 utilizes the motor operation (i.e. drives the corresponding traffic carrier to travel) to form air circulation in the battery pack 5 by external air induction, and carries away the heat generated by the battery pack 5 through external air flow, thereby ensuring effective heat dissipation of the battery during discharging.

[0028] Please refer to Figures 1-5In one embodiment of the present application, the first heat dissipation assembly 6 comprises a heat absorbing plate 601 arranged in the casing 1 and located at the side of the stator 3 and the rotor 4, and a closed plate 603 rotatably arranged in one side of the casing 1, the mounting shaft 2 is fixedly connected with the heat absorbing plate 601 and the closed plate 603, a plurality of heat conducting columns 602 are uniformly arranged on the heat absorbing plate 601 in the circumferential direction, and a heat dissipation fin 604 corresponding to each heat conducting column 602 is arranged on the closed plate 603, and one end of the heat conducting column 602 away from the heat absorbing plate 601 is connected with the corresponding heat dissipation fin 604.

[0029] In the present embodiment, the mounting shaft 2, the heat absorbing plate 601 and the closed plate 603 are in a relatively static state, the heat absorbing plate 601 absorbs the heat generated by the cooperation of the stator 3 and the rotor 4, and then the heat is conducted to the heat dissipation fin 604 through the heat conducting column 602 for dissipation, thereby achieving heat dissipation of the stator 3 and the rotor 4.

[0030] Further, the first heat dissipation assembly 6 further comprises a brushing component for cleaning the heat dissipation fin 604, the brushing component comprises a rotating sleeve 605 rotatably arranged on the mounting shaft 2, a plurality of rod members 606 are uniformly arranged on the rotating sleeve 605 in the circumferential direction, and a wind cup 607 is arranged at one end of each rod member 606 away from the rotating sleeve 605, and a brush 608 for brushing the rod member 606 is arranged on at least one rod member 606. Since the wheel hub motor is close to the ground, dust will inevitably be generated when the transportation vehicle is driven and attached to the outer side of the heat dissipation fin 604, thereby affecting the heat dissipation efficiency. In the present embodiment, the airflow impacts the plurality of wind cups 607 when the transportation vehicle is driven, thereby driving the plurality of rod members 606 to revolve around the mounting shaft 2, that is, driving the brush 608 to rotate, thereby brushing the outer side of the heat dissipation fin 604 to achieve the effect of cleaning dust (the rotating track of the brush 608 matches the arrangement track of the plurality of heat dissipation fins 604), and the heat dissipation efficiency of the heat dissipation fin 604 is ensured.

[0031] Please refer to Figure 1 、 Figures 4-7 In one embodiment of the present application, the mounting shaft 2 is fixedly provided with a bearing plate 7, the battery pack 5 is fixedly arranged on the bearing plate 7, and a shock absorbing pad 8 is arranged between the battery pack 5 and the bearing plate 7, so as to play a shock absorbing and protecting role for the battery pack 5. The battery pack 5 comprises a loading member 501, a plurality of accommodation compartments 502 are uniformly and separately arranged on the loading member 501 in the circumferential direction, a battery pack 503 with a shape matching each accommodation compartment 502 is arranged on each accommodation compartment 502, and a flow channel 50 is arranged on the outer circle of each battery pack 503 in communication, and the loading member 501 is made of a heat conducting material (such as copper, aluminum, etc.). The second heat dissipation assembly 10 comprises air guiding components for guiding external air flow into each flow channel 504, and an air duct 1001 arranged in the mounting shaft 2, the air outlet end of the flow channel 504 communicates with the air duct 1001 (communicates through a corresponding hose), and the air duct 1001 is located outside the casing 1 and is provided with a plurality of air outlets 1002; The air guiding components comprise an air guiding box 1003 arranged on the closing plate 603, the air guiding box 1003 is provided with an air inlet 1004 in the forward and backward directions of the intelligent integrated motor (i.e. the direction in which the intelligent integrated motor is actually loaded on the traffic carrier to drive the traffic carrier to move forward or backward), the air guiding box 1003 is hingedly provided with a wind deflector 1005, and the air guiding box 1003 is further provided with an air outlet 1006, and the air inlet end of the flow channel 504 communicates with the air outlet 1006 (also communicates through a corresponding hose).

[0032] In this embodiment, when the intelligent integrated motor is running (i.e. driving the corresponding traffic carrier to move forward or backward), the air flow will inevitably enter the air guiding box 1003 through one of the two air inlets 1004 longitudinally, the entering air flow will impact the wind deflector 1005 to make it in a deflected state, thereby forming a slope wind guiding structure to guide the air flow into the flow channel 504, the air flow flows into the air duct 1001 after flowing into the flow channel 504, and then is discharged outside the casing 1 through the plurality of air outlets 1002, thereby forming an air flow circulation and achieving high-efficiency heat dissipation of the battery pack 5.

[0033] Further, in this embodiment, a filter 1007 for filtering dust is arranged at the air inlet 1004, and similarly, the filter 1007 will be blocked due to dust accumulation, a flat strip made of spring steel is arranged at the air inlet 1004, a ball body in contact with the filter 1007 is fixedly arranged at the end of the flat strip, and the flat strip will shake to a certain extent when the traffic carrier encounters bumps or accelerates or decelerates, thereby driving the ball body to knock the filter 1007 to vibrate, thereby achieving the technical effect of cleaning the filter 1007.

[0034] Further, in this embodiment, the casing 1 is further provided with a heat insulation plate 9 for separating the stator 3, the rotor 4 (stator and rotor) and the battery pack 5, the heat insulation plate 9 is fixedly arranged on the mounting shaft 2, the heat generated during the operation of the stator 3 and the rotor 4 is significantly higher than the heat generated during the discharge of the battery pack 5, and the heat insulation plate 9 is arranged to block the heat transfer from the stator and rotor to the battery pack 5, thereby avoiding the risk of performance degradation or thermal runaway of the battery pack 5 caused by the coupling of the two heat sources.

[0035] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A smart integrated motor with a built-in battery, comprising a housing (1), a mounting shaft (2) rotatably penetrating the housing (1), a stator (3) disposed on the mounting shaft (2), and a rotor (4) disposed in the housing (1) and adapted to the stator (3), wherein the housing (1) is further provided with a battery pack (5), characterized in that, The intelligent integrated motor also includes a first heat dissipation component (6) for heat dissipation of the stator (3) and rotor (4) and a second heat dissipation component (10) for heat dissipation of the battery pack (5). The second heat dissipation component (10) utilizes the operation of the motor to draw air from the outside into the battery pack (5) to form an airflow circulation to achieve heat dissipation.

2. The intelligent integrated motor with a built-in battery according to claim 1, characterized in that, The first heat dissipation component (6) includes a heat-absorbing plate (601) disposed in the housing (1) and located on the side of the stator (3) and rotor (4) and a sealing plate (603) rotatably embedded on one side of the housing (1). The mounting shaft (2) is fixedly connected to both the heat-absorbing plate (601) and the sealing plate (603). The heat-absorbing plate (601) is uniformly provided with multiple heat-conducting columns (602) in the circumferential direction. The sealing plate (603) is embedded with heat sinks (604) that correspond one-to-one with the heat-conducting columns (602). The end of the heat-conducting column (602) away from the heat-absorbing plate (601) is connected to the corresponding heat sink (604).

3. The intelligent integrated motor with a built-in battery according to claim 2, characterized in that, The first heat dissipation assembly (6) further includes a brush cleaning component for cleaning the heat sink (604). The brush cleaning component includes a rotating sleeve (605) rotatably sleeved on the mounting shaft (2). The rotating sleeve (605) is evenly provided with multiple rods (606) in the circumferential direction. Each rod (606) is provided with a wind cup (607) at one end away from the rotating sleeve (605). At least one rod (606) is provided with a brush (608) for brushing the rod (606).

4. The intelligent integrated motor with a built-in battery according to claim 1, characterized in that, A bearing plate (7) is fixedly inserted through the mounting shaft (2), the battery pack (5) is fixedly installed on the bearing plate (7), and a shock-absorbing pad (8) is provided between the battery pack (5) and the bearing plate (7).

5. The intelligent integrated motor with a built-in battery according to claim 1, characterized in that, The battery pack (5) includes a carrier (501), which is circumferentially divided into multiple placement compartments (502). Each placement compartment (502) is provided with a battery pack (503) with a suitable shape. Each battery pack (503) has a connected flow channel (50) evenly distributed around its outer ring. The carrier (501) is made of a thermally conductive material.

6. The intelligent integrated motor with a built-in battery according to claim 5, characterized in that, The second heat dissipation component (10) includes an air intake component for guiding external airflow into each flow channel (504) and an air duct (1001) provided in the mounting shaft (2). The air outlet end of the flow channel (504) is connected to the air duct (1001), and the end of the air duct (1001) is located outside the housing (1) and is provided with a number of exhaust ports (1002).

7. The intelligent integrated motor with a built-in battery according to claim 6, characterized in that, The air-guiding component includes an air-guiding box (1003) mounted on a closed plate (603). The air-guiding box (1003) has air inlets (1004) in both the forward and backward directions in this intelligent integrated motor arrangement scenario. A guide vane (1005) is hinged in the air-guiding box (1003). An air outlet (1006) is also provided on the air-guiding box (1003). The air inlet end of the flow channel (504) is connected to the air outlet (1006).

8. The intelligent integrated motor with a built-in battery according to claim 7, characterized in that, The air inlet (1004) is provided with a filter (1007) for filtering dust.

9. The intelligent integrated motor with a built-in battery according to claim 1, characterized in that, The housing (1) is also provided with a heat insulation plate (9) for separating the stator (3), rotor (4) and battery pack (5), and the heat insulation plate (9) is fixedly installed on the mounting shaft (2).

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