A hub motor with an integrated liquid cooling circulation channel

Abstract

The present invention discloses a hub motor with an integrated liquid cooling circulation channel, including a drive motor mechanism. The drive motor mechanism includes a mounting member, a fixing member is bolted to the top of the mounting member, a motor housing is fixedly connected to the top of the fixing member, and a stator is fixedly connected to the inner wall of the motor housing. The present invention belongs to the technical field of hub motors. The purpose of the present invention is to solve the problem that a large amount of heat energy generated during the braking process of vehicles in the prior art is usually wasted and cannot be effectively recovered and utilized, resulting in energy waste. The achieved technical effect is that by attaching the TEG hot end to the surface of the brake disc and allowing the coolant to flow through the TEG cold end, the coolant is used to cool the TEG cold end, and the brake disc and the TEG hot end are heated, effectively recovering the heat energy generated during the braking process and converting it into electrical energy, realizing the recovery and utilization of heat energy, improving the energy utilization efficiency of the vehicle, and making it more convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of in-wheel motors, and particularly to an in-wheel motor with an integrated liquid cooling circulation channel. Background Art

[0002] An in-wheel motor, also known as an electric wheel, is a motor that integrates all power, transmission, and braking devices within the wheel hub. The working principle of the in-wheel motor is based on the law of electromagnetic induction. It drives the vehicle by directly converting electrical energy into mechanical energy for wheel rotation. The DC electrical energy is provided by an electric vehicle battery, and an inverter converts the DC power into AC power, which is supplied to the stator winding. According to the law of three-phase alternating current, the current is switched to generate a rotating magnetic field. When the rotating magnetic field generated by the stator winding acts on the permanent magnet or electromagnet rotor installed within the wheel hub, due to electromagnetic interaction, the rotor will rotate synchronously following the direction of the magnetic field. The rotation of the rotor directly drives the wheel to rotate, eliminating complex transmission components such as clutches, transmissions, and differentials in traditional vehicles, and achieving direct power output.

[0003] Currently, the liquid cooling structures of traditional in-wheel motors are often independently set up and fail to effectively cooperate with the braking system for heat dissipation. They cannot make full use of the heat distribution characteristics within the system, resulting in poor heat dissipation effects. At the same time, a large amount of heat energy generated during the vehicle braking process is usually wasted and not effectively recovered and utilized, causing waste of energy. Summary of the Invention

[0004] To address this, the present invention provides an in-wheel motor with an integrated liquid cooling circulation channel to solve the above problems in the prior art.

[0005] To achieve the above objective, the present invention provides the following technical solutions:

[0006] According to a first aspect of the present invention, an in-wheel motor with an integrated liquid cooling circulation channel includes a drive motor mechanism. The drive motor mechanism includes a mounting member, a fixing member is bolted to the top of the mounting member, a motor housing is fixedly connected to the top of the fixing member, and a stator is fixedly connected to the inner wall of the motor housing; a braking mechanism, the braking mechanism includes a brake disc and a brake caliper, and the brake caliper is disposed on the surface of the brake disc; a TEG heat recovery mechanism for an external electrical energy storage device, the TEG heat recovery mechanism includes a TEG hot end, one side of the TEG hot end is in contact with the surface of the brake disc, and a TEG cold end is fixedly connected to the top of the TEG hot end; an integrated liquid cooling mechanism, the integrated liquid cooling mechanism includes a brake disc cooling chamber, a TEG cooling chamber is disposed on the top of the brake disc cooling chamber, one side of the brake disc cooling chamber is in contact with the side of the brake disc away from the TEG hot end, and the interior of the brake disc cooling chamber is in communication with the interior of the TEG cooling chamber.

[0007] Further, the drive motor mechanism further includes a spiral flow chamber, which is arranged inside the motor housing, and a rotor is arranged inside the stator.

[0008] Further, a tire mounting disc is fixedly connected to the surface of the rotor shaft, and a wheel hub is bolted to one side of the tire mounting disc.

[0009] Further, a tire is arranged on the surface of the wheel hub, the surface of the rotor shaft is fixedly connected to the inside of the brake disc, and one side of the mounting member is bolted to one side of the brake caliper.

[0010] Further, the TEG heat recovery mechanism further includes a fixing rod, one end of the fixing rod is fixedly connected to the surface of the TEG hot end, the bottom of the fixing rod is bolted to the top of the mounting member, and one side of the TEG cold end is fixedly connected to one side of the TEG cooling chamber.

[0011] Further, the integrated liquid cooling mechanism further includes a first connecting pipe, and one end of the first connecting pipe is communicated with the inside of the TEG cooling chamber.

[0012] Further, a circulation pump is arranged inside the first connecting pipe, the bottom of the circulation pump is fixedly connected to the surface of the mounting member, and one end of the first connecting pipe is communicated with a heat dissipation pipe.

[0013] Further, a fixing plate is fixedly connected to the surface of the heat dissipation pipe, one side of the fixing plate is fixedly connected to one side of the mounting member, and one end of the heat dissipation pipe is communicated with a second connecting pipe.

[0014] Further, one end of the second connecting pipe is communicated with one end of the spiral flow chamber, a third connecting pipe is arranged on the surface of the brake disc cooling chamber, and one end of the third connecting pipe is communicated with the end of the spiral flow chamber far from the second connecting pipe.

[0015] The present invention has the following advantages: Through the setting of the integrated liquid cooling mechanism, the liquid cooling channels of the motor and the braking mechanism are integrally designed, realizing the collaborative heat dissipation of the two systems. After the coolant flows through the inside of the drive motor mechanism and adsorbs the heat inside the motor, it enters the surface of the brake disc and absorbs the heat inside the brake disc, making full use of the heat dissipation capacity of the coolant, improving the overall heat dissipation efficiency, reducing the volume and cost of the heat dissipation system. At the same time, the TEG hot end is attached to the surface of the brake disc, the coolant flows through the TEG cold end, the coolant cools the TEG cold end, and the brake disc and the TEG hot end are heated, effectively recovering the heat energy generated during the braking process and converting it into electrical energy, realizing the recovery and utilization of heat energy, improving the energy utilization efficiency of the vehicle, and making it more convenient to use. Description of the Drawings

[0016] Figure 1 The front view three-dimensional structure schematic diagram of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0017] Figure 2 The side view three-dimensional structure schematic diagram of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0018] Figure 3 The exploded structure schematic diagram of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0019] Figure 4 The three-dimensional structure schematic diagram of the integrated liquid cooling mechanism of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0020] Figure 5 The side structure schematic diagram of the integrated liquid cooling mechanism of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0021] Figure 6 The exploded structure schematic diagram of the integrated liquid cooling mechanism of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0022] Figure 7 The side structure schematic diagram of the exploded state of the integrated liquid cooling mechanism of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0023] Figure 8 The exploded structure schematic diagram of the drive motor mechanism of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0024] Figure 9 The structure schematic diagram of the brake disc cooling chamber and the TEG cooling chamber of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0025] Figure 10 The cross-sectional structure schematic diagram of the motor housing of a hub motor with an integrated liquid cooling circulation channel provided by the present invention.

[0026] In the figure: 11, mounting member; 12, fixing member; 13, motor housing; 14, stator; 15, spiral flow chamber; 16, rotor; 17, tire mounting disc; 18, hub; 19, tire; 21, brake disc; 22, brake clamp; 31, TEG hot end; 32, TEG cold end; 33, fixing rod; 41, brake disc cooling chamber; 42, TEG cooling chamber; 43, first connecting pipe; 44, circulation pump; 45, heat dissipation pipe; 46, fixing plate; 47, second connecting pipe; 48, third connecting pipe. Detailed implementation manners

[0027] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Embodiment

[0028] As Figures 1 to 10 shown, a hub motor with an integrated liquid cooling circulation channel in the first aspect embodiment of the present invention includes a drive motor mechanism, and the drive motor mechanism includes a mounting member 11. A fixing member 12 is bolted to the top of the mounting member 11. A motor housing 13 is fixedly connected to the top of the fixing member 12. A stator 14 is fixedly connected to the inner wall of the motor housing 13; a braking mechanism, and the braking mechanism includes a brake disc 21 and a brake caliper 22. The brake caliper 22 is disposed on the surface of the brake disc 21; a TEG heat recovery mechanism for an external electric energy storage device, and the TEG heat recovery mechanism includes a TEG hot end 31. One side of the TEG hot end is lapped with the surface of the brake disc 21. A TEG cold end 32 is fixedly connected to the top of the TEG hot end 31; an integrated liquid cooling mechanism, and the integrated liquid cooling mechanism includes a brake disc cooling cavity 41. A TEG cooling cavity 42 is disposed on the top of the brake disc cooling cavity 41. One side of the brake disc cooling cavity 41 is lapped with the side of the brake disc 21 away from the TEG hot end 31. The inside of the brake disc cooling cavity 41 is communicated with the inside of the TEG cooling cavity 42;

[0029] In the above embodiment, it should be noted that power is supplied to the drive motor mechanism, so that the rotor 16 drives the tire mounting disc 17 to rotate, and then drives the hub 18 and the tire 19 to rotate through the tire mounting disc 17. The hub 18 is directly driven by the rotor to rotate. During operation, due to the arrangement of the circulation pump 44, the coolant flows in the connecting pipe, and the coolant in the heat dissipation pipe 45 is conveyed along the second connecting pipe 47 into the spiral flow cavity 15 inside the motor housing 13, and exchanges heat with the motor housing 13, absorbs the heat in the motor housing 13, reduces the temperature of the motor housing 13, and further reduces the temperatures of the stator 14 and the rotor 16, avoiding the coil from being burned due to overheating;

[0030] The technical effects achieved by the above embodiment are: reducing the temperature of the motor housing 13, and further reducing the temperatures of the stator 14 and the rotor 16, avoiding the coil from being burned due to overheating. Embodiment

[0031] As Figures 1 to 10As shown in the figure, a hub motor with an integrated liquid cooling circulation channel includes all the contents of Embodiment 1. In addition, the drive motor mechanism includes a mounting member 11, a fixing member 12 is bolted to the top of the mounting member 11, a motor housing 13 is fixedly connected to the top of the fixing member 12, and a stator 14 is fixedly connected to the inner wall of the motor housing 13; a braking mechanism, the braking mechanism includes a brake disc 21 and a brake caliper 22, and the brake caliper 22 is arranged on the surface of the brake disc 21; a TEG heat recovery mechanism for an external electric energy storage device, the TEG heat recovery mechanism includes a TEG hot end 31, one side of the TEG hot end is lapped with the surface of the brake disc 21, and a TEG cold end 32 is fixedly connected to the top of the TEG hot end 31; an integrated liquid cooling mechanism, the integrated liquid cooling mechanism includes a brake disc cooling cavity 41, a TEG cooling cavity 42 is arranged on the top of the brake disc cooling cavity 41, one side of the brake disc cooling cavity 41 is lapped with the side of the brake disc 21 away from the TEG hot end 31, the inside of the brake disc cooling cavity 41 is communicated with the inside of the TEG cooling cavity 42, the drive motor mechanism further includes a spiral flow cavity 15, the spiral flow cavity 15 is arranged inside the motor housing 13, a rotor 16 is arranged inside the stator 14, a tire mounting disc 17 is fixedly connected to the surface of the rotor 16 shaft, a hub 18 is bolted to one side of the tire mounting disc 17, a tire 19 is arranged on the surface of the hub 18, the surface of the rotor 16 shaft is fixedly connected to the inside of the brake disc 21, one side of the mounting member 11 is bolted to one side of the brake caliper 22, the TEG heat recovery mechanism further includes a fixing rod 33, one end of the fixing rod 33 is fixedly connected to the surface of the TEG hot end 31, the bottom of the fixing rod 33 is bolted to the top of the mounting member 11, and one side of the TEG cold end 32 is fixedly connected to one side of the TEG cooling cavity 42. The integrated liquid cooling mechanism further includes a first connecting pipe 43, and one end of the first connecting pipe 43 is communicated with the inside of the TEG cooling cavity 42;

[0032] In the above embodiment, it should be noted that the coolant enters the brake disc cooling cavity 41 along the third connecting pipe 48 and is indirectly in contact with the brake disc 21, so as to complete the heat exchange, absorb the heat generated by friction when the brake caliper 22 clamps the brake disc 21, reduce the temperature of the brake disc 21, and avoid the influence of too high temperature of the brake disc 21 on the braking effect. Subsequently, the coolant enters the TEG cooling cavity 42 communicated with the brake disc cooling cavity 41 and contacts the TEG cold end 32 to cool the TEG cold end 32, and then returns to the heat dissipation pipe 45 along the first connecting pipe 43. During the driving of the vehicle, the coolant in the heat dissipation pipe 45 is air-cooled by the airflow to keep it at a lower temperature, so as to maintain a good cooling effect;

[0033] The technical effects achieved by the above embodiments are as follows: The coolant enters the TEG cooling chamber 42 connected to the brake disc cooling chamber 41, contacts the cold end 32 of the TEG, cools the cold end 32 of the TEG, and then returns to the heat dissipation pipe 45 along the first connecting pipe 43. During the driving of the vehicle, the coolant in the heat dissipation pipe 45 is air-cooled by the airflow to keep it at a relatively low temperature, so as to maintain a good cooling effect. Embodiment

[0034] As Figures 1 to 10 shown, a hub motor with an integrated liquid cooling circulation channel includes all the contents of Embodiment 2. In addition, the drive motor mechanism includes a mounting member 11, a fixing member 12 is bolted to the top of the mounting member 11, a motor housing 13 is fixedly connected to the top of the fixing member 12, and a stator 14 is fixedly connected to the inner wall of the motor housing 13; a braking mechanism, the braking mechanism includes a brake disc 21 and a brake caliper 22, and the brake caliper 22 is arranged on the surface of the brake disc 21; a TEG heat energy recovery mechanism for an external electric energy storage device, the TEG heat energy recovery mechanism includes a TEG hot end 31, one side of the TEG hot end is lapped with the surface of the brake disc 21, and a TEG cold end 32 is fixedly connected to the top of the TEG hot end 31; an integrated liquid cooling mechanism, the integrated liquid cooling mechanism includes a brake disc cooling chamber 41, a TEG cooling chamber 42 is arranged on the top of the brake disc cooling chamber 41, one side of the brake disc cooling chamber 41 is lapped with the side of the brake disc 21 away from the TEG hot end 31, the inside of the brake disc cooling chamber 41 is communicated with the inside of the TEG cooling chamber 42, a circulation pump 44 is arranged inside the first connecting pipe 43, the bottom of the circulation pump 44 is fixedly connected to the surface of the mounting member 11, one end of the first connecting pipe 43 is communicated with a heat dissipation pipe 45, a fixing plate 46 is fixedly connected to the surface of the heat dissipation pipe 45, one side of the fixing plate 46 is fixedly connected to one side of the mounting member 11, one end of the heat dissipation pipe 45 is communicated with a second connecting pipe 47, one end of the second connecting pipe 47 is communicated with one end of a spiral flow chamber 15, and a third connecting pipe 48 is arranged on the surface of the brake disc cooling chamber 41, and one end of the third connecting pipe 48 is communicated with the end of the spiral flow chamber 15 away from the second connecting pipe 47;

[0035] In the above embodiments, it should be noted that the TEG hot end 31 contacts the side of the brake disc 21 away from the brake disc cooling chamber 41, the TEG hot end is heated by the brake disc 21, the cold end 32 of the TEG is cooled by the coolant, the temperature difference between the TEG hot end 31 and the TEG cold end 32 is increased, so that the TEG heat energy recovery mechanism maintains a good power generation effect, improves the energy utilization rate of the hub motor, and makes it more convenient to use.

[0036] The technical effects achieved by the above embodiments are as follows: The TEG heat energy recovery mechanism maintains a good power generation effect, improves the energy utilization rate of the hub motor, and makes it more convenient to use.

[0037] Working principle: When in use, power is supplied to the drive motor mechanism, so that the rotor 16 drives the tire mounting disc 17 to rotate, and then drives the wheel hub 18 and the tire 19 to rotate through the tire mounting disc 17. The wheel hub 18 is directly driven by the rotor to rotate. During operation, due to the setting of the circulation pump 44, the coolant flows in the connecting pipe, and the coolant in the heat dissipation pipe 45 is conveyed along the second connecting pipe 47 into the spiral flow cavity 15 inside the motor housing 13, and exchanges heat with the motor housing 13, absorbs the heat in the motor housing 13, reduces the temperature of the motor housing 13, and then reduces the temperature of the stator 14 and the rotor 16, avoiding the coil burnout caused by overheating. Subsequently, the coolant enters the brake disc cooling cavity 41 along the third connecting pipe 48, indirectly contacts the brake disc 21, and thus completes the heat exchange, absorbs the heat generated by friction when the brake caliper 22 clamps the brake disc 21, reduces the temperature of the brake disc 21, and avoids the influence of the too high temperature of the brake disc 21 on the braking effect. Subsequently, the coolant enters the TEG cooling cavity 42 communicated with the brake disc cooling cavity 41, contacts the cold end 32 of the TEG, cools the cold end 32 of the TEG, and then returns to the heat dissipation pipe 45 along the first connecting pipe 43. During the driving of the vehicle, the coolant in the heat dissipation pipe 45 is cooled by air flow, so that it maintains a relatively low temperature, thus maintaining a good cooling effect. At the same time, the hot end 31 of the TEG contacts the side of the brake disc 21 away from the brake disc cooling cavity 41, heats the hot end of the TEG by using the brake disc 21, cools the cold end 32 of the TEG by using the coolant, increases the temperature difference between the hot end 31 and the cold end 32 of the TEG, enables the TEG energy recovery mechanism to maintain a good power generation effect, improves the energy utilization rate of the in-wheel motor, and makes it more convenient to use.

Claims

1. A hub motor with an integrated liquid cooling circulation channel, characterized in that: include A drive motor mechanism, the drive motor mechanism comprising a mounting member (11), the top of the mounting member (11) being bolted to a fixing member (12), the top of the fixing member (12) being fixedly connected to a motor housing (13), and the inner wall of the motor housing (13) being fixedly connected to a stator (14); A brake mechanism, the brake mechanism comprising a brake disc (21) and a brake clamp (22), the brake clamp (22) being arranged on the surface of the brake disc (21); A TEG heat energy recovery mechanism of an external electric energy storage device, the TEG heat energy recovery mechanism comprising a TEG hot end (31), one side of the TEG hot end overlapping the surface of the brake disc (21), and the top of the TEG hot end (31) being fixedly connected to a TEG cold end (32); An integrated liquid cooling mechanism, the integrated liquid cooling mechanism comprising a brake disc cooling chamber (41), a TEG cooling chamber (42) being arranged on the top of the brake disc cooling chamber (41), one side of the brake disc cooling chamber (41) overlapping with a side of the brake disc (21) away from the TEG hot end (31), and the interior of the brake disc cooling chamber (41) communicating with the interior of the TEG cooling chamber (42); One side of the TEG cold end (32) is fixedly connected to one side of the TEG cooling chamber (42); The integrated liquid cooling mechanism further comprises a first connecting pipe (43), one end of the first connecting pipe (43) being connected to the interior of the TEG cooling chamber (42); A circulation pump (44) is arranged inside the first connecting pipe (43); the bottom of the circulation pump (44) is fixedly connected to the surface of the mounting member (11); and one end of the first connecting pipe (43) is connected to a heat dissipation pipe (45); A fixing plate (46) is fixedly connected to the surface of the heat dissipation pipe (45), one side of the fixing plate (46) is fixedly connected to one side of the mounting member (11), and one end of the heat dissipation pipe (45) is connected to a second connecting pipe (47); One end of the second connecting tube (47) is connected to one end of the spiral flow chamber (15); a third connecting tube (48) is provided on the surface of the brake disc cooling chamber (41); one end of the third connecting tube (48) is connected to one end of the spiral flow chamber (15) away from the second connecting tube (47); The coolant in the heat dissipation pipe (45) is transported along the second connecting pipe (47) to the spiral flow cavity (15) inside the motor housing (13), performs heat exchange with the motor housing (13), and absorbs heat inside the motor housing (13).

2. The hub motor with an integrated liquid cooling circulation channel according to claim 1, characterized in that: The drive motor mechanism further comprises a spiral flow chamber (15), wherein the spiral flow chamber (15) is arranged inside the motor housing (13), and a rotor (16) is arranged inside the stator (14).

3. The hub motor with an integrated liquid cooling circulation channel according to claim 2, characterized in that: A tire mounting plate (17) is fixedly connected to the surface of the rotating shaft of the rotor (16), and a wheel hub (18) is bolted to one side of the tire mounting plate (17).

4. The hub motor with an integrated liquid cooling circulation channel according to claim 3, characterized in that: A tire (19) is provided on the surface of the wheel hub (18), the surface of the rotating shaft of the rotor (16) is fixedly connected to the inside of the brake disc (21), and one side of the mounting member (11) is bolted to one side of the brake clamp (22).

5. The hub motor with an integrated liquid cooling circulation channel according to claim 1, characterized in that: The TEG heat energy recovery mechanism further comprises a fixing rod (33), one end of which is fixedly connected to the surface of the TEG hot end (31), and the bottom of the fixing rod (33) is bolted to the top of the mounting member (11).

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