Wide-body vehicle traction motor

Abstract

The utility model relates to a wide -body car traction motor, including the casing, the lateral wall of casing is provided with cooling water flow channel, be provided with the water inlet and the water outlet with cooling water flow channel conduction on the casing, still be connected with the fan housing on the casing, still be provided with the gas guide groove with the fan housing conduction inside casing on the casing. The heat energy of this traction motor casing and the casing inside can discharge in time, guarantees the operation of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a traction motor for wide-body vehicles. Background Technology

[0002] The traction motor of a wide-body vehicle is installed inside the chassis, requiring high torque, small size, and light weight. During operation, the motor generates heat, causing its temperature to gradually rise until it eventually stops operating due to overheating. Current methods use water cooling to cool the motor frame, which provides some cooling, but the effect is limited and cannot guarantee long-term normal operation.

[0003] Prior art CN117811273A discloses a water-cooled motor, including a housing, wherein the housing includes: a water inlet disposed at a first end of the housing and configured to inject coolant; a water outlet disposed at a second end of the housing opposite to the first end and configured to discharge the coolant after heat exchange; and a cooling water channel disposed in the side wall of the housing, through which the coolant flows to exchange heat with the internal structure of the motor, one end of the cooling water channel being connected to the water inlet and the other end being connected to the water outlet, and the cooling water channel being spiral-shaped.

[0004] Existing motor technologies utilize cooling channels to absorb heat from the casing using coolant, thus cooling the casing. However, these technologies only directly cool the casing and cannot directly cool the interior of the casing. Consequently, the motor still suffers from problems such as excessively high internal casing temperatures affecting its normal operation. Utility Model Content

[0005] The technical problem solved by this utility model is to overcome the problems existing in the prior art and provide a wide-body vehicle traction motor that can cool the housing and the interior of the housing to ensure the operation of the motor.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A traction motor for a wide-body vehicle is disclosed, comprising a housing; a cooling water channel is provided in the side wall of the housing; an inlet and an outlet connected to the cooling water channel are provided on the housing; a fan shroud is also connected to the housing, and an air guide groove is also provided on the housing to connect the interior of the housing with the fan shroud.

[0008] Preferably, four wind shields are provided.

[0009] Preferably, the wind shields are spaced apart.

[0010] Preferably, any of the aforementioned shrouds is connected to the interior of the housing via two air guide channels.

[0011] Preferably, the two ends of the housing are provided with an air inlet and an air outlet that communicate with the interior of the housing.

[0012] Preferably, the fan cover is disposed on the outer wall of the housing relative to the cooling water flow channel.

[0013] Preferably, a rotor is connected to the housing, and a fan is provided on the rotor to rotate under the action of the rotor rotation.

[0014] Preferably, the wind shield is connected to the outer wall of the housing by bolts.

[0015] Preferably, the output shaft of the motor is connected to the drive shaft.

[0016] Preferably, the inner side of the cooling water channel is connected to the stator core.

[0017] Compared with existing technologies, it has the following beneficial effects:

[0018] 1) Cooling water channels are installed in the side wall of the housing to directly cool the housing. A fan shroud is connected to the housing, and the shroud is connected to the interior of the housing via air guide slots. High-temperature gas inside the housing flows into the fan shroud through the air guide slots, and through the fan shroud, the high-temperature gas is cooled by heat transfer, thus achieving cooling of the interior of the housing. Ultimately, this achieves cooling of the housing and its interior, ensuring the normal operation of the motor.

[0019] 2) Four fan covers are provided to further improve the cooling effect on the inside of the casing.

[0020] 3) The motor's output shaft is directly connected to the transmission shaft, eliminating the gearbox structure, simplifying the structure, improving efficiency, and solving the shifting problem. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a traction motor for a wide-body vehicle according to the present invention;

[0022] Figure 2 This is a side view of a traction motor for a wide-body vehicle according to the present invention;

[0023] Figure 3 This is a cross-sectional view of a traction motor for a wide-body vehicle according to the present invention. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0026] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0029] Example 1

[0030] like Figures 1-3As shown, a traction motor for a wide-body vehicle is disclosed, including a housing 1; a cooling water channel 5 is provided in the side wall of the housing 2; an inlet 2 and an outlet 3 connected to the cooling water channel 5 are provided on the housing 1; a fan shroud 4 is also connected to the housing 1, and an air guide groove is also provided on the housing 1 to connect the interior of the housing 1 with the fan shroud 4.

[0031] The housing 1 serves as a protective shell for the traction motor (hereinafter referred to as the motor), and the stator 8 is fixedly installed on the inner wall of the housing 1. When the motor is running, that is, when the motor's mover 6 (shaft) rotates, the rotational motion of the shaft and the stator 8 will generate a large amount of heat energy, which will cause the temperature inside the housing 1 and the surface of the housing 1 to rise.

[0032] In this embodiment, the housing 1 can be cylindrical, and a cooling water channel 5 is provided in the arc-shaped sidewall of the housing 1. An inlet 2 and an outlet 3 are also provided on the housing 1. The inlet 2 and the outlet 3 are connected to the cooling water channel 5.

[0033] Low-temperature fluid (such as cooling water) flows into the cooling water channel 5 from the inlet 2 and flows out from the outlet 3. Under the action of heat transfer, the cooling water absorbs the heat energy of the shell 1, thereby cooling the shell 1.

[0034] Meanwhile, a fan shroud 4 is connected to the outer side wall of the housing 1, and an air guide groove is provided on the side wall of the housing 1 to connect the interior of the housing 1 and the fan shroud 4. Through the air guide groove, the gas inside the housing 1 and the gas inside the fan shroud 4 can circulate. When the high-temperature gas inside the housing 1 enters the fan shroud 4, the fan shroud 4 absorbs the heat energy of the high-temperature gas, and the temperature of the fan shroud 4 itself rises. Because the outside temperature is lower than the fan shroud temperature, the outside will absorb the heat energy of the fan shroud 4. Thus, the fan shroud 4 is used to cool the interior of the housing 1, ultimately achieving cooling of the housing 1 and its interior, ensuring the normal operation of the motor.

[0035] To improve the heat transfer efficiency of the fan shroud 4, it can be made of a metal material with good heat transfer properties. Additionally, the length of the fan shroud 4 can be the same as the length of the housing 1. This design increases the contact area between the fan shroud 4 and the outside environment, further improving heat transfer efficiency.

[0036] Example 2

[0037] A traction motor for a wide-body vehicle is disclosed, comprising a housing 1; a cooling water channel 5 is provided in the side wall of the housing 2; an inlet 2 and an outlet 3 connected to the cooling water channel 5 are provided on the housing 1; a fan shroud 4 is also connected to the housing 1, and an air guide groove is also provided on the housing 1 to connect the interior of the housing 1 with the fan shroud 4.

[0038] The difference between this embodiment and embodiment 1 is that, in order to improve the cooling effect inside the housing 1, the fan shroud 4 can be set to four, with the four fan shrouds 4 spaced apart.

[0039] To ensure airflow between the shroud 4 and the housing 1, each shroud 4 is connected to the interior of the housing 1 through multiple air guide channels. In this embodiment, two air guide channels are provided.

[0040] Specifically, air inlets and outlets that communicate with the interior of the housing 1 can be provided at both ends of the housing 1. The number of air inlets and outlets can be set as needed, but is generally four. By setting air inlets and outlets, communication is achieved between the outside air and the interior of the housing 1, thereby further cooling the interior of the housing 1.

[0041] The wind shield 4 and the housing 1 can be detachably connected by bolts or other means, or they can be integrally formed by casting.

[0042] A rotor 6 is installed inside the housing 1. The installation of the rotor 6 is existing technology and will not be described in detail here. In this embodiment, a fan 7 can be installed on the rotor 6. The fan 7 operates under the action of the rotor rotation, increasing the airflow speed inside the housing 1, thereby providing a cooling effect to the inside of the housing 1.

[0043] Example 3

[0044] A traction motor for a wide-body vehicle is disclosed, comprising a housing 1; a cooling water channel 5 is provided in the side wall of the housing 2; an inlet 2 and an outlet 3 connected to the cooling water channel 5 are provided on the housing 1; a fan shroud 4 is also connected to the housing 1, and an air guide groove is also provided on the housing 1 to connect the interior of the housing 1 with the fan shroud 4.

[0045] The difference between this embodiment and Embodiment 1 is that the motor's output shaft is directly connected to the drive shaft, and the other end of the drive shaft can be connected to the drive hub. The gearbox between the motor and the drive shaft in the prior art is eliminated; the motor output shaft directly drives the hub through the drive shaft, resulting in greater motor output torque and a wider speed range. The gearbox and shifting mechanism are eliminated, and the controller directly drives the motor for speed regulation, leading to higher efficiency and a more compact structure.

[0046] In this embodiment, the motor can be installed on the tractor vehicle as a power source for the tractor vehicle.

[0047] Example 4

[0048] A traction motor for a wide-body vehicle is disclosed, comprising a housing 1; a cooling water channel 5 is provided in the side wall of the housing 2; an inlet 2 and an outlet 3 connected to the cooling water channel 5 are provided on the housing 1; a fan shroud 4 is also connected to the housing 1, and an air guide groove is also provided on the housing 1 to connect the interior of the housing 1 with the fan shroud 4.

[0049] The difference between this embodiment and Embodiment 1 is that the cooling water flow channels 5 are designed in a ring shape, thereby improving the cooling effect on the housing 1. Specifically, the inner side of the cooling water flow channel 5 (the part of the flow channel near the inner wall of the housing) is arranged relative to the stator core 8. Through this design, the distance between the stator core and the cooling water flow channel is reduced, thereby improving the heat transfer between the stator core and the cooling water, and achieving rapid cooling of the stator core.

[0050] Obviously, the above embodiments are merely examples to clearly illustrate the technical solution of this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A traction motor for a wide-body vehicle, characterized in that, The device includes a housing; a cooling water channel is provided in the side wall of the housing; an inlet and an outlet connected to the cooling water channel are provided on the housing; a fan shroud is also connected to the housing, and an air guide groove is provided on the housing to connect the interior of the housing with the fan shroud; four fan shrouds are provided, spaced apart, and the fan shrouds are bolted to the outer wall of the housing; each fan shroud is connected to the interior of the housing through two air guide grooves; an air inlet and an air outlet connected to the interior of the housing are provided at both ends of the housing, and the fan shrouds are arranged on the outer wall of the housing opposite to the cooling water channel; a rotor is connected to the housing, and a fan is provided on the rotor to rotate under the action of the rotor rotation.

2. The traction motor for a wide-body vehicle according to claim 1, characterized in that, The output shaft of the motor is connected to the drive shaft.

3. A traction motor for a wide-body vehicle according to claim 1, characterized in that, The inner side of the cooling water flow channel is connected to the stator core.

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