An electric vehicle

Abstract

The application discloses an electric vehicle motor base and an electric vehicle, and belongs to the technical field of electric vehicles. The electric vehicle motor base comprises a body, a flow channel is formed in the body, a motor mounting area and a spray hole are formed in the body, the spray hole is communicated with the flow channel, and the spray hole faces the motor mounting area. One end of a blowing control valve is communicated with the flow channel, and the other end of the blowing control valve is provided with a wind guide joint communicated with an air outlet of a vehicle-mounted air conditioner. The electric vehicle motor base and the electric vehicle provided by the application can accelerate the evaporation of wet liquid on the motor shell, keep the motor shell dry, and reduce the influence of liquid corrosion.

Description

Technical Field

[0001] This application belongs to the field of electric vehicle technology, and in particular relates to an electric vehicle. Background Technology

[0002] Electric vehicles are cars powered by electricity, equipped with batteries and motors as power mechanisms to generate driving torque and propel the vehicle. While the casing of automotive motors is typically waterproof and rustproof, during the use of electric vehicles, the motor surface may become wet, or even accumulate a certain amount of liquid of various components, which can easily corrode the functional coatings on the motor surface, such as rust-proof and corrosion-resistant coatings.

[0003] Because the motor is located inside the vehicle and its surrounding structure is complex, it is usually impossible to clean the liquid on the electrode surface in a timely manner. The only option is to use the heat generated during motor operation to evaporate the outer casing surface. However, when the vehicle is running at low speed or stationary, the evaporation efficiency is low, and the outer casing surface cannot be dried in time. This increases the risk of corrosion of the functional coating on the motor casing surface to some extent. As the electric vehicle is used for longer periods, the accumulated corrosion on the motor casing threatens the motor's operational safety and service life. Summary of the Invention

[0004] This application provides an electric vehicle designed to at least partially address the technical problem of unsatisfactory drying efficiency and susceptibility to liquid corrosion on the surface of electric vehicle motors. Therefore,

[0005] One aspect of this application provides an electric vehicle motor base, comprising:

[0006] The body has a flow channel inside, and a motor mounting area and a spray hole are provided on the body. The spray hole is connected to the flow channel and faces the motor mounting area.

[0007] The jet control valve has one end connected to the flow channel, and the other end of the jet control valve is equipped with an air guide connector that connects to the air outlet of the vehicle's air conditioning system.

[0008] In some embodiments, there are multiple nozzles, which are arranged at intervals around the motor mounting area.

[0009] In some embodiments, a filter screen is provided inside the nozzle.

[0010] In some embodiments, the cross-section of the flow channel is circular.

[0011] In some embodiments, the flow channel is an annular flow channel.

[0012] In some embodiments, the body is a plate, and the motor mounting area is located in the central region of the plate surface.

[0013] In some embodiments, the jet control valve is connected to the side wall of the plate via an air duct, and the air duct is in communication with the flow channel.

[0014] In some embodiments, the electric vehicle motor base also includes a flushing control valve;

[0015] One end of the flushing control valve is connected to the flow channel, and the other end is equipped with a flow guide connector that connects to the output end of the vehicle-mounted windshield washer pump.

[0016] In some embodiments, the flushing control valve is connected to the flow channel via a guide pipe.

[0017] Another aspect of this application embodiment also provides an electric vehicle, including a windshield washer pump, an on-board air conditioner, an on-board controller, and the electric vehicle motor base;

[0018] The windshield washer pump, the vehicle air conditioner, and the blower control valve are respectively connected to the vehicle controller;

[0019] The air guide connector is connected to the air outlet of the vehicle air conditioner.

[0020] The embodiments of this application have at least the following beneficial effects:

[0021] The electric vehicle motor base and electric vehicle provided in this application embodiment, by opening a flow channel and a nozzle communicating with the flow channel inside the motor base body, and connecting it to the air outlet of the vehicle air conditioner through a blow-blowing control valve, can introduce the blow-blowing airflow of the vehicle air conditioner into the flow channel inside the body, and spray it onto the planned motor mounting area on the body through the nozzle, thereby accelerating the gas flow and accelerating the evaporation of moisture or other liquid components on the motor housing, thereby improving the corrosive effect of various liquid components on the motor housing to a certain extent. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural schematic diagram of the electric vehicle motor base in an embodiment of this application is shown;

[0024] Figure 2 It shows Figure 1 A cross-sectional view of the electric vehicle motor base in the image;

[0025] Figure 3 It shows Figure 1 A schematic diagram of the flow channel and nozzle structure in the base of an electric vehicle motor.

[0026] Figure 4 A schematic diagram of the control architecture of an electric vehicle in an embodiment of this application is shown.

[0027] Figure label:

[0028] 1-Body, 11-Flow channel, 12-Panel surface, 12a-Motor mounting area, 13-Spray hole, 14-Filter screen, 15-Motor fastening screw hole, 16-Base mounting hole, 17-Side wall;

[0029] 2-Purge control valve, 21-Air guide connector, 22-Air guide duct;

[0030] 3-Flush control valve, 31-Flow guide connector, 32-Flow guide pipe;

[0031] 4-Glass water pump;

[0032] 5-Vehicle air conditioning;

[0033] 6-Vehicle controller. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] This application is described below with reference to the accompanying drawings and specific embodiments:

[0037] In electric vehicles, the electric motor converts electrical energy into mechanical energy, outputting rotational torque to drive the vehicle's running gear. As the vehicle operates, liquids of various compositions easily accumulate on the motor's casing, leading to corrosion and deterioration of functional coatings such as rust-preventive coatings. Due to the compact interior structure, the only current solution is to rely on the heat from the motor's operation to accelerate the evaporation of these liquids, but this is inefficient. With prolonged use, the accumulated corrosion will inevitably damage the quality of the motor casing.

[0038] Therefore, embodiments of this application provide an electric vehicle motor base and an electric vehicle, which aim to improve the evaporation rate of liquid on the motor housing to a certain extent, so as to reduce the impact of liquid corrosion.

[0039] Figure 1 A three-dimensional structural schematic diagram of the electric vehicle motor base in an embodiment of this application is shown; Figure 2 It shows Figure 1 A cross-sectional view of the electric vehicle motor base in the image; Figure 3 It shows Figure 1 A schematic diagram of the flow channel and nozzle structure in the base of an electric vehicle motor. Figure 4 A schematic diagram of the control architecture of an electric vehicle in an embodiment of this application is shown.

[0040] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the electric vehicle motor base improves liquid evaporation efficiency by accelerating airflow around the motor. The electric vehicle motor base may include a body 1 and a jet control valve 2.

[0041] The main body 1 serves as the mounting base for the electric motor. A motor mounting area 12a can be planned on the main body 1 for mounting the electric motor. Motor fastening screw holes 15 can be opened on the main body 1 to fasten the electric motor to the main body 1 with fastening bolts and other fasteners. Base mounting holes 16 can also be opened on the main body 1 to mount the main body 1 to the vehicle frame with fastening bolts and other fasteners.

[0042] The main body 1 is also provided with a flow channel 11, which is connected to one end of the jet control valve 2. The other end of the jet control valve 2 is also provided with an air guide connector 21, which is used to match and connect the air outlet of the vehicle air conditioner 5. Thus, the air guide connector 21 is connected to the air outlet of the vehicle air conditioner 5 to introduce the airflow blown out by the vehicle air conditioner 5 into the flow channel 11.

[0043] The main body 1 is also provided with a spray hole 13, which is connected to the flow channel 11. The spray direction of the spray hole 13 is towards the motor mounting area 12a, so that the airflow flowing in the flow channel 11 can be sprayed towards the motor mounting area 12a through the spray hole 13, thereby forming a high-speed moving airflow field within the space of the motor mounting area 12a, thereby accelerating the evaporation of liquid on the motor casing, thus shortening the liquid corrosion time to a certain extent and reducing the corrosion impact.

[0044] In other words, by opening a flow channel and a nozzle connected to the flow channel on the main body of the motor base, and connecting the air outlet of the vehicle air conditioner through the blow-out control valve, the blow-out airflow of the vehicle air conditioner can be introduced into the flow channel inside the main body and sprayed onto the planned motor mounting area on the main body through the nozzle, thereby accelerating the gas flow and thus accelerating the evaporation of moisture or other liquid components on the motor housing, thereby improving the corrosive effect of various liquid components on the motor housing to a certain extent.

[0045] In some embodiments, in order to improve the airflow uniformity of the airflow field and avoid insufficient airflow, the number of nozzles 13 can be set to multiple, and the multiple nozzles can be arranged around the motor mounting area 12a with intervals around the motor mounting area 12a as the center, forming an annular airflow field around the motor mounting area 12a, guiding the airflow to accelerate, thereby promoting the evaporation of liquid on the motor housing.

[0046] Generally, the spacing between two adjacent nozzles 13 can be set according to the sealing degree of the area around the motor. In areas with relatively high density, the spacing between two adjacent nozzles 13 is relatively small, and in areas with relatively low density, the spacing between two adjacent nozzles 13 is relatively large.

[0047] In some embodiments, the angle between the spray direction of the nozzle 13 and the vertical direction can be differentiated. For example, in narrow, densely structured areas on the motor housing, the spray direction of the nozzle 13 can be directly pointed towards the motor housing. In relatively open, regular areas on the motor housing, the spray direction of the nozzle 13 can be set to the side of these areas, avoiding direct spraying onto these areas and guiding airflow only to prevent liquid splashing.

[0048] In some embodiments, a filter screen 14 may be provided inside the nozzle 13 to filter large-volume debris in the jet airflow, keep the environment around the motor clean, reduce the accumulation of pollutants, and ensure equipment safety.

[0049] In some embodiments, in order to improve the smoothness of airflow and reduce the obstruction of vortices, the cross-section of the flow channel 11 may be set to be circular.

[0050] In some embodiments, an adjustable nozzle may be provided within the spray hole 13 to flexibly adjust the spray angle.

[0051] In some embodiments, the flow channel 11 is an annular flow channel, so that the airflow introduced from the blow control valve 2 can be divided into two streams that flow to both sides respectively, thereby ensuring that the blow flow velocity in each nozzle 13 is approximately the same and maintaining the uniformity of the airflow field.

[0052] In some embodiments, multiple jet control valves 2 may be provided on the flow channel 11 to introduce multiple streams of air into the flow channel 11, so as to avoid the air pressure of the jet orifice 13 which is far from the jet control valve 2 due to airflow attenuation, which would affect the jet evaporation effect.

[0053] Of course, more than one jet control valve 2 can be set, and the specific configuration can be flexibly adjusted. This embodiment does not impose any specific limitations.

[0054] In some embodiments, the body 1 can be configured as a plate, the motor mounting area 12a can be located in the central area of ​​the plate surface 12, and the flow channel 11 and the nozzle 13 are located in the area of ​​opposite edges, thereby making reasonable use of space, reducing the overall volume of the body 1, and facilitating the installation of the body 1.

[0055] In some embodiments, to avoid interference with the motor, the jet control valve 2 can be connected to the plate side wall 17 of the main body 1 via the air guide pipe 22, and the air guide pipe 22 is connected to the flow channel 11, which reduces the installation density in the space above the main body 1 to a certain extent and reduces the risk of interference.

[0056] In some embodiments, as the usage time increases, some debris and stains will accumulate and adhere to the nozzle 13 and the flow channel 11, affecting the smoothness of airflow. To this end, the electric vehicle motor base can also be provided with a flushing function mechanism to clean the flow channel 11 and the nozzle 13 regularly.

[0057] Generally, the flow channel 11 can be connected to a vehicle windshield washer fluid spraying device to introduce windshield washer fluid to rinse the flow channel 11 and the spray nozzle 13.

[0058] In some embodiments, the electric vehicle motor base may further include a flushing control valve 3, one end of which is connected to the flow channel 11, and the other end is provided with a flow guide connector 31 for matching and connecting to the output end of the vehicle-mounted windshield washer pump 4, thereby obtaining windshield washer fluid.

[0059] In some embodiments, to avoid interference with the motor, the flushing control valve 3 can be connected to the side wall 17 of the main body 1 via a guide pipe 32, and the guide pipe 32 is connected to the flow channel 11. This reduces the installation density in the space above the main body 1 to a certain extent and reduces the risk of interference. The flushing control valve 3 is connected to the flow channel 11 via the guide pipe 32.

[0060] In some embodiments, check valves may be provided at the ends of the air duct 22 and the flow duct 32 near the flow channel 11 to prevent airflow or glass water from impacting the blow control valve 2 and the flush control valve 3 during blowing or rinsing.

[0061] See Figure 4 In some embodiments, an electric vehicle is also provided, including a windshield washer pump 4, an on-board air conditioner 5, an on-board controller 6, and the electric vehicle motor base.

[0062] The glass water pump 4, the vehicle air conditioner 5, and the blow-blowing control valve 2 are respectively connected to the vehicle controller 6, and the air guide connector 21 is connected to the air outlet of the vehicle air conditioner 5. Thus, under the coordinated control of the vehicle controller 6, the blow-blowing operation of the electric vehicle motor base can be realized to accelerate the evaporation of liquid on the motor housing.

[0063] Generally, the vehicle air conditioner 5 and the windshield washer pump 4 can operate independently under the control of the vehicle controller 6. When a blowing operation is required, the vehicle controller 6 can control the blowing control valve 2 to open, and the airflow blown out by the vehicle air conditioner 5 can enter the flow channel 11 through the air guide connector 21, the blowing control valve 2 and the air guide pipe 22, and be sprayed out from the nozzle 13.

[0064] When a rinsing operation is required, the vehicle controller 6 can control the rinsing control valve 3 to open. The windshield washer fluid pumped out by the windshield washer pump 4 can enter the flow channel 11 through the flow guide joint 31, the rinsing control valve 3 and the flow guide pipe 32, and flow out from the spray hole 13 to realize the rinsing operation of the flow channel.

[0065] Generally, the output pipe of the windshield washer pump 4 can be set to two, each with a control valve, and the control valves on the two output pipes can be interlocked. That is, at most one output pipe can be turned on at the same time, or both can be turned off at the same time, so as to avoid interference between the operation of rinsing the flow channel 11 and cleaning the windshield; it can also prevent windshield washer fluid from entering the flow channel 11 when spraying, thus avoiding waste of windshield washer fluid.

[0066] It is worth noting that the jet control valve 2 and the flushing control valve 3 can also be interlocked, meaning that they do not open synchronously and can also both be in the closed state at the same time to avoid mutual interference.

[0067] Generally, the blow control valve 2 and the flush control valve 3 are electrically controlled by the vehicle controller 6.

[0068] The vehicle controller 6 can be the control host of the electric vehicle, which can uniformly control the vehicle air conditioner 5, the windshield washer pump 4, the flushing control valve 3 and the blower control valve 2.

[0069] The vehicle controller 6 can also be configured as an independent controller device, specifically controlling the flushing control valve 3 and the blower control valve 2, and using the status signals of the vehicle air conditioner 5 and the windshield washer pump 4 as input signals to the vehicle controller 6, so as to control the operation of the flushing control valve 3 and the blower control valve 2.

[0070] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0071] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0072] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0073] In the description of this specification, the references to terms such as "one 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 may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0074] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric vehicle, characterized by comprising: The glass water pump, the vehicle-mounted air conditioner, the vehicle-mounted controller and the motor base of the electric vehicle; the motor base of the electric vehicle comprises: The body is internally provided with a flow channel, the body is provided with a motor mounting area and a spray hole, the spray hole is communicated with the flow channel, and the spray hole faces the motor mounting area; A spray control valve is communicated with the flow channel at one end, and the other end of the spray control valve is provided with a wind guide joint communicated with the air outlet of the vehicle-mounted air conditioner; The glass water pump, the vehicle-mounted air conditioner and the spray control valve are connected with the vehicle-mounted controller respectively; The wind guide joint is connected with the air outlet of the vehicle-mounted air conditioner.

2. The electric vehicle of claim 1, wherein, The spray hole is a plurality of, and the plurality of spray holes are arranged around the motor mounting area.

3. The electric vehicle of claim 2, wherein, A filter screen is arranged in the spray hole.

4. The electric vehicle of claim 1, wherein, The cross section of the flow channel is circular.

5. The electric vehicle of claim 1, wherein, The flow channel is an annular flow channel.

6. The electric vehicle of claim 1, wherein, The body is a plate member, and the motor mounting area is arranged at the central area of the plate surface of the plate member.

7. The electric vehicle of claim 6, wherein, The spray control valve is connected on the side wall of the plate member through a wind guide pipe, and the wind guide pipe is communicated with the flow channel.

8. The electric vehicle according to any one of claims 1 to 7, wherein The motor base of the electric vehicle further comprises a flushing control valve; One end of the flushing control valve is communicated with the flow channel, and the other end is provided with a flow guide joint communicated with the output end of the vehicle-mounted glass water pump.

9. The electric vehicle of claim 8, wherein, The flushing control valve is connected with the flow channel through a flow guide pipe.

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