Heat dissipation motor and electric vehicle

Abstract

The utility model relates to the technical field of electric vehicles, in particular to a heat dissipation motor and an electric vehicle, which comprise a controller, a PCB (Printed Circuit Board), a motor body and a heat dissipation assembly, the controller is installed on the PCB, the motor stator is installed in the motor body, the PCB is directly installed on one side of the motor stator, and the heat dissipation assembly is connected with the PCB. The internal integration of the controller and the PCB is realized, the controller is mounted on the PCB and clings to the motor stator, the synchronous heat dissipation of the motor stator, the controller and the PCB is realized, a shell, a binding post, an outgoing phase line and the like of the controller are omitted, and a good space expression is brought. The PCB is located at the stator of the motor, the connection of a phase line of the motor does not need to be externally connected with the motor and can be directly connected to the PCB, and the controller, the PCB and the like jointly form an integrated motor control driving system. The motor only needs to be connected with a system power supply line, a system communication line, a system control line and the like, no miscellaneous line exists, and the appearance is very attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation motors for electric vehicles, and in particular to a heat dissipation motor and an electric vehicle. Background Art

[0002] In recent years, with the continuous increase in the number of motor vehicles, the problems such as traffic congestion and exhaust pollution have become increasingly serious. As a low-carbon and convenient short-distance travel tool, electric bicycles are becoming more and more popular among the general public.

[0003] In the face of such a large group of electric bicycle users, when driving on some mountain roads or rugged roads, the motor of the two-wheeled electric vehicle will generate a lot of heat due to the problem of long-term high-load operation, which will affect the vehicle power, cruising range, etc., and even cause irreversible attenuation of the motor. The existing hub motor achieves the purpose of heat dissipation by heat radiation to the motor cover, which greatly affects its own heat dissipation effect. Even if the motor achieves active heat dissipation, it cannot provide a good spatial effect. Utility Model Content

[0004] (I) The utility model provides a heat dissipation motor and an electric vehicle, which alleviate the technical problem in the prior art that the heat dissipation effect of the motor cannot be increased in space performance.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, an embodiment of the utility model provides a heat dissipation motor, including a controller, a PCB board, a motor body and a heat dissipation component;

[0007] The controller is mounted on the PCB board, a motor stator is mounted inside the motor body, the PCB board is directly mounted on one side of the motor stator, and the heat dissipation component is connected to the PCB board.

[0008] Furthermore, the motor body also includes an end cover, two end covers are provided and are respectively arranged on both sides of the motor stator, and the heat dissipation component is arranged on the end cover.

[0009] Furthermore, each of the end covers is respectively provided with a plurality of exhaust ports, the exhaust ports form an air duct, the heat dissipation assembly is arranged at one end of the air duct facing the outside of the motor body, and the other end of the air duct is connected to the PCB board.

[0010] Furthermore, the heat dissipation assembly includes an exhaust valve, and the exhaust valve is installed at one end of the exhaust port facing the outside of the motor body.

[0011] Furthermore, a coil is wound around the stator of the motor.

[0012] Furthermore, a Hall sensor is provided on the coil.

[0013] Furthermore, a rim is arranged on the motor body, an inner ring array of the rim is arranged with magnetic steel, and an outer ring of the rim is used for arranging a tire.

[0014] Furthermore, it also includes a motor shaft, and the motor shaft is drivingly connected to the motor body.

[0015] The utility model also provides an electric vehicle, comprising a frame, and the heat dissipation motor is mounted on the frame.

[0016] Furthermore, the electric vehicle is a two-wheeled electric bicycle.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides a heat dissipation motor, including a controller, a PCB board, a motor body and a heat dissipation component; the controller is installed on the PCB board, a motor stator is installed inside the motor body, the PCB board is directly installed on one side of the motor stator, and the heat dissipation component is connected to the PCB board. The utility model realizes the internal integration of the controller and the PCB board in the motor. The controller is installed on the PCB board and is close to the motor stator, realizing the synchronous heat dissipation of the motor stator, the controller and the PCB board, eliminating the housing, terminal, and external phase line of the controller, etc., and bringing good space performance. The PCB board is located at the motor stator, and the connection of the motor phase line does not need to be connected to the motor externally, and can be directly connected to the PCB board. The controller and the PCB board together constitute an integrated motor control drive system. The motor only needs to be connected to the system power supply line, the system communication line, the system control line, etc., without unnecessary miscellaneous lines, which is very beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 An exploded view of the overall internal structure of a heat dissipation motor provided in an embodiment of the utility model.

[0021] icon:

[0022] 101-PCB board;

[0023] 201-motor stator; 202-end cover; 2021-end cover screw; 203-exhaust valve; 204-coil; 205-Hall sensor; 206-wheel rim; 207-magnetic steel;

[0024] 301-motor shaft; 302-oil seal. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] like Figure 1 As shown, the utility model provides a dual-tire wheel, including a controller, a PCB board 101, a motor body and a heat dissipation component; the controller is installed on the PCB board 101, a motor stator 201 is installed inside the motor body, the PCB board 101 is directly installed on one side of the motor stator 201, and the heat dissipation component is connected to the PCB board 101.

[0029] In this embodiment, the controller and the PCB board 101 are integrated inside the motor. The controller is mounted on the PCB board 101 and is close to the motor stator 201, so that the motor stator 201, the controller and the PCB board 101 can be cooled synchronously. The housing, the terminal, and the external phase line of the motor of the controller are omitted, which brings good space performance. The PCB board 101 is located at the motor stator 201. The connection of the motor phase line does not need to be connected to the motor externally, but can be directly connected to the PCB board 101. The controller and the PCB board 101 together constitute an integrated motor control drive system. The motor only needs to be connected to the system power supply line, the system communication line, the system control line, etc., without any extra miscellaneous lines, which is very beautiful.

[0030] The motor with integrated controller realizes efficient connection between the controller and the motor, and realizes the integration of the motor and the controller, saving the actual space of the controller and related heat dissipation structures such as the controller casing, contributing to the lightweight of the entire vehicle.

[0031] According to an embodiment provided by the utility model, Figure 1 As shown, the motor body further includes an end cover 202 , two end covers 202 are provided, and are respectively arranged on both sides of the motor stator 201 , and the heat dissipation component is arranged on the end cover 202 .

[0032] In this embodiment, an end cover 202 is provided on each side of the motor stator 201, and a heat dissipation component is provided on the end cover 202, and the heat dissipation component is connected to the PCB board 101. Preferably, a plurality of ventilation holes are provided on the motor stator 201, and the ventilation holes are spaced and evenly arranged along the circumference of the motor stator 201, so that the PCB board 101 can be connected with the end covers 202 on both sides of the motor stator 201.

[0033] Among them, preferably, a plurality of screw holes are provided on each end cover 202, and each screw hole is evenly spaced on the edge of the end cover 202. The number and position relationship of the screw holes on the two end covers 202 correspond to each other, and by using the end cover screw 2021 to pass through the screw holes on the two end covers 202 in sequence, the two end covers 202 are fixed under the cooperation of the threads of the screw and the screw hole, thereby protecting the internal structure of the motor body and increasing the service life of the heat dissipation motor provided in this embodiment.

[0034] According to an embodiment provided by the utility model, Figure 1 As shown, each end cover 202 is respectively provided with a plurality of exhaust ports, the exhaust ports form an air duct, the heat dissipation component is arranged at one end of the air duct facing the outside of the motor body, and the other end of the air duct is connected to the PCB board 101.

[0035] In this embodiment, each end cover 202 is respectively provided with a plurality of exhaust ports, and the exhaust ports form air ducts, wherein, optionally, the position of each air duct corresponds to each other to facilitate gas circulation, and the number of air ducts is preferably three, which are evenly spaced, that is, the angle between each air duct and the line connecting the center of the motor stator 201 is 120°.

[0036] The heat dissipation component is installed at one end of the air duct facing the outside of the motor body, and the other end of the air duct is connected to the PCB board 101. Then, the heat dissipation component on the end covers 202 on both sides of the motor stator 201 is interconnected with the air duct to form a gas flow, thereby achieving synchronous heat dissipation of the controller and the PCB board 101.

[0037] According to an embodiment provided by the utility model, Figure 1 As shown, the heat dissipation assembly includes an exhaust valve 203, and the exhaust valve 203 is installed at one end of the exhaust port facing the outside of the motor body.

[0038] In this embodiment, the heat dissipation component uses an exhaust valve 203, and the exhaust valve 203 corresponds to the exhaust port one by one. The exhaust valves 203 on the end covers 202 on both sides are connected to allow the gas inside the motor body to flow, thereby achieving synchronous heat dissipation of the controller and the PCB board 101, and ensuring that the product operates in a reasonable temperature range.

[0039] Preferably, the exhaust valve 203 is selected to be unidirectional, which can ensure that the gas can only go out from the exhaust port during heat dissipation, and prevent debris from entering the interior of the motor body from the exhaust port and affecting the normal operation of the heat dissipation motor.

[0040] The heat dissipation component may also be other connecting parts that facilitate gas flow inside the motor body, and its purpose does not deviate from the design concept of the utility model and should fall within the scope of protection of the utility model.

[0041] According to an embodiment provided by the utility model, Figure 1 As shown, a coil 204 is wound around the motor stator 201 .

[0042] In this embodiment, a coil 204 is wound on the motor stator 201. When the motor stator 201 generates an alternating current, the magnetic field in the coil 204 changes accordingly, and then a magnetic field is generated on the rotor, causing the rotor to rotate, thereby realizing the power generation function of the motor.

[0043] Preferably, the coil 204 is made of copper, which has good electrical conductivity and certain corrosion resistance.

[0044] According to an embodiment provided by the utility model, Figure 1 As shown, a Hall sensor 205 is provided on the coil 204 .

[0045] In this embodiment, the integrated motor, controller and PCB board 101 are located at the motor stator 201. The connection of the motor phase line does not need to be externally connected to the motor, and can be directly connected to the PCB board 101. At the same time, a Hall sensor 205 is provided on the coil 204 wound outside the motor stator 201, and related circuits such as the Hall element circuit, the motor temperature acquisition circuit and the heat dissipation drive circuit can be all integrated into the PCB board 101. The controller directly collects the motor Hall information, the motor temperature information, and the drive information of the heat dissipation system, etc., thereby increasing the intelligence during use.

[0046] According to an embodiment provided by the utility model, Figure 1 As shown, a rim 206 is provided on the motor body, an inner ring array of the rim 206 is provided with magnetic steel 207, and an outer ring of the rim 206 is used to set a tire.

[0047] Furthermore, it also includes a motor shaft 301, which is drivingly connected to the motor body.

[0048] Preferably, oil seals 302 are provided on both sides of the motor shaft 301 .

[0049] In this embodiment, the above-mentioned form is used to realize the heat dissipation motor action, and the motor shaft 301 is connected to the motor body through transmission, so as to achieve the required driving effect.

[0050] The utility model also provides an electric vehicle, which comprises a frame, and a heat dissipation motor is mounted on the frame.

[0051] In this embodiment, an electric vehicle is provided, including a vehicle frame and the heat dissipation motor in the above embodiment, the heat dissipation motor is fixedly connected to the vehicle frame, and the heat dissipation motor saves the actual space of the controller and the related heat dissipation structure such as the housing of the controller by integrating the controller and the PCB board 101 and directly installing them on the motor stator 201, thereby contributing to the lightweight of the whole vehicle. At the same time, the PCB board 101 adopts a modular design, that is, the assembly and fixing method of the PCB board 101 and the motor stator 201 is unified, and the versatility of the electric vehicle product can be effectively improved.

[0052] Further, preferably, the electric vehicle is a two-wheeled electric bicycle.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation motor, characterized in that: It comprises a controller, a PCB board (101), a motor body and a heat dissipation component; The controller is mounted on the PCB board (101), a motor stator (201) is mounted inside the motor body, the PCB board (101) is directly mounted on one side of the motor stator (201), and the heat dissipation component is connected to the PCB board (101).

2. A heat dissipation motor according to claim 1, characterized in that: The motor body further comprises an end cover (202), two end covers (202) are provided and are respectively arranged on two sides of the motor stator (201), and the heat dissipation component is arranged on the end cover (202).

3. A heat dissipation motor according to claim 2, characterized in that: Each of the end covers (202) is respectively provided with a plurality of exhaust ports, the exhaust ports forming an air duct, the heat dissipation component is arranged at one end of the air duct facing the outside of the motor body, and the other end of the air duct is connected to the PCB board (101).

4. A heat dissipation motor according to claim 3, characterized in that: The heat dissipation component comprises an exhaust valve (203), and the exhaust valve (203) is installed at one end of the exhaust port facing the outside of the motor body.

5. The heat dissipation motor according to claim 1, characterized in that: A coil (204) is wound around the motor stator (201).

6. The heat dissipation motor according to claim 5, characterized in that: A Hall sensor (205) is provided on the coil (204).

7. The heat dissipation motor according to claim 5, characterized in that: A rim (206) is arranged on the motor body, an inner ring array of the rim (206) is arranged with magnetic steel (207), and an outer ring of the rim (206) is used for arranging a tire.

8. A heat dissipation motor according to any one of claims 1 to 7, characterized in that: It also includes a motor shaft (301), and the motor shaft (301) is drivingly connected to the motor body.

9. An electric vehicle, comprising a frame, characterized in that: It comprises a heat dissipation motor as described in any one of claims 1 to 8, wherein the heat dissipation motor is mounted on the vehicle frame.

10. An electric vehicle according to claim 9, characterized in that: The electric vehicle is a two-wheeled electric bicycle.

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