CN115967218A - Waterproof motor shell of new energy motor vehicle - Google Patents

Abstract

The invention relates to a waterproof motor housing of a new energy motor vehicle. A transmission gear set (3-2) is installed inside the gear case housing (3-1) through a bracket, and a gear of a power input shaft (3-7) passes through the transmission gear. Group (3-2) is connected to one end of the power output shaft (5), and the oil seal pressurized tank (4) is respectively connected to the power output shaft piston oil bladder (3-3) and the power input shaft piston oil bladder (3-4 ), the power output shaft piston oil bag (3‑3) is connected to the power output shaft ring oil seal (3‑6) through the pipeline, the power input shaft piston oil bag (3‑4) is connected to the power input shaft ring oil seal (3‑6) through the pipeline ‑5), the present invention can effectively protect the motor, so that the new energy tricycle can safely deal with the bad road conditions covered with mud pits or puddles on the road, can effectively improve the service life of the new energy tricycle, and reduce maintenance costs.

Description

A waterproof motor casing for a new energy vehicle

technical field

The invention relates to the technical field of motors, in particular to a waterproof motor housing for new energy motor vehicles.

Background technique

A motor is a device that converts electrical energy into mechanical energy. It uses energized coils (that is, stator windings) to generate a rotating magnetic field and acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magneto-electric power rotation torque. Motors are divided into DC motors and AC motors according to the power used. Most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors (the motor stator magnetic field speed and rotor rotation speed do not maintain synchronous speed). The motor is mainly composed of a stator and a rotor. The direction of the current-carrying wire in the magnetic field is related to the direction of the current and the direction of the magnetic field line (magnetic field direction). The working principle of the motor is that the magnetic field acts on the force of the current to make the motor rotate.

At present, a large number of new energy tricycles exported are sold to places such as Africa and South America. Most of these places have extremely poor infrastructure, or even no infrastructure at all. Mud or puddles are very common on local roads, and new energy tricycles The power motors are all installed at the lower part of the frame. The motors installed in this place will inevitably work in harsh environments. Long-term wading in mud pits will inevitably lead to water and sediment entering the motors, which will greatly reduce the life of the motors or even burn them out. Car users increase the number of vehicle maintenance, resulting in unnecessary costs.

In order to solve these problems, although the horizontal shaft waterproof rotating motor with the Japanese patent number JPH09200994A has solved the problem of motor waterproofing, this type of motor is only a large motor used in a fixed location, and it cannot be applied to new energy tricycles, and it is not very good. To deal with mud or puddles on the road.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the present invention provides a waterproof motor housing for a new energy motor vehicle, which can effectively protect the motor, so that the new energy tricycle can safely deal with the bad road conditions with mud pits or puddles all over the road, and can effectively Maximize the service life of new energy tricycles and reduce maintenance costs.

In order to achieve the above object, the present invention provides a waterproof motor housing for a new energy motor vehicle, which includes a motor active radiator, a motor waterproof housing, a waterproof gear box, an oil seal pressurized tank, a power output shaft and auxiliary heat dissipation fins. One end of the motor waterproof housing described above is connected to the waterproof gear box through screws, and the other end of the motor waterproof housing is opened for welding to install the active radiator of the motor. Welding and installing a group of frame connecting frames, opening a hole on one side of the waterproof gearbox to install the power output shaft, and opening a hole on one side of the waterproof gearbox to install an oil seal pressurized tank; the motor radiator includes an active radiator shell, a heat dissipation Fan, heat pipe and heat conduction patch, the surface of the active radiator shell is provided with a through hole to install the air duct, the cooling fan and the heat dissipation grill are installed in the air duct through the bracket, and the heat dissipation grill is installed on the surface of the active radiator shell through pipeline connection The heat pipe, the heat pipe is fixed and pasted on the surface of the motor in the motor waterproof casing; when the motor is installed in the motor waterproof casing, the heat of the motor cannot be dissipated during operation, and long-term use will cause the motor to burn out. In order to ensure the long-term normal operation of the motor To run, the heat pipe of the active radiator of the motor needs to conduct heat to the cooling grille in the active radiator shell, and then the cooling fan blows the cold air through the cooling grille to take away excess heat, so as to ensure that the motor runs at a normal temperature .

The waterproof gearbox includes a gearbox housing, a transmission gear set, a power output shaft piston oil bag, a power input shaft piston oil bag, a power input shaft ring oil seal, a power output shaft ring oil seal and a power input shaft, and the gearbox housing The transmission gear set is installed inside through the bracket, the gear of the power input shaft is connected to one end of the power output shaft through the transmission gear set, and the oil seal pressurized tank is installed through the hole on the surface of the gearbox shell, and the oil seal pressurized tank is respectively connected to the power output shaft piston through the pipeline The oil bladder and the piston oil bladder of the power input shaft, the piston oil bladder of the power output shaft are connected to the ring oil seal of the power output shaft through the pipeline, the piston oil bladder of the power input shaft is connected to the ring oil seal of the power input shaft through the pipeline, and the ring oil seal of the power output shaft is in the gearbox The power output shaft is socketed on the inner side of the casing, and the ring oil seal of the power input shaft is socketed on the inside of the gearbox casing. Connect the motor in the waterproof casing of the motor; when the entire motor is wrapped, the only place where water can enter is the through hole where the drive shaft is installed. In order to ensure that these through holes will not enter water, pressurize the tank through the oil seal High-pressure air compresses the piston oil bag of the power output shaft and the piston oil bag of the power input shaft, so that the lubricating oil in the piston oil bag of the power output shaft and the piston oil bag of the power input shaft is pressed into the annular oil seal of the power input shaft and the power output shaft through the pipeline In the shaft ring oil seal, the ring oil seal of the power input shaft and the ring oil seal of the power output shaft have grooves on the side facing their respective rotating shafts. The lubricating oil can effectively prevent water or sediment from entering the motor. It only needs to add lubricating oil regularly and replace the oil seal pressurized tank to ensure that the motor will not enter the water.

As a further improvement of the present invention, the surface of the heat pipe is welded to connect more than two heat conduction patches.

As a further improvement of the present invention, the heat pipe is pasted on the surface of the motor inside the motor waterproof casing in a disk shape.

As a further improvement of the present invention, the oil-sealed pressurized tank is encapsulated in a high-pressure carbon dioxide cylinder.

As a further improvement of the present invention, the pressure of the high-pressure carbon dioxide cylinder of the oil-sealed pressurized tank is not lower than 3 MPa.

As a further improvement of the present invention, the transmission gear set is equipped with an electronically controlled shifting device.

By virtue of the above-mentioned solution, the present invention has at least the following advantages: Compared with the conventional external motor, the motor is properly protected by the active radiator of the motor, the waterproof casing of the motor and the waterproof gear box, which can effectively protect the motor, so that the new energy tricycle can Confidently deal with the bad road conditions full of mud pits or puddles on the road, which can effectively improve the service life of new energy tricycles, reduce maintenance costs, and have significant environmental and economic benefits.

Description of drawings

Fig. 1 is a front perspective schematic diagram of a waterproof motor housing of a new energy vehicle;

Fig. 2 is a rear view perspective schematic diagram of a waterproof motor housing of a new energy vehicle;

Fig. 3 is a perspective view of a motor active radiator of a waterproof motor housing of a new energy motor vehicle;

Fig. 4 is a side view sectional view of a waterproof gear box of a waterproof motor housing of a new energy vehicle;

In the figure: 1. Motor active radiator, 1-1, active radiator shell, 1-2, heat dissipation fan, 1-3, heat pipe, 1-4, heat conduction patch, 2, motor waterproof shell, 3 , waterproof gearbox, 3-1, gearbox housing, 3-2, transmission gear set, 3-3, power output shaft piston oil bag, 3-4, power input shaft piston oil bag, 3-5, power input Shaft annular oil seal, 3-6, power output shaft annular oil seal, 3-7, power input shaft, 4, oil seal pressurized tank, 5, power output shaft, 6, auxiliary cooling fins.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, in the description of this specification, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

As shown in Figures 1 to 4, the waterproof motor housing of a new energy motor vehicle includes a motor active radiator 1, a motor waterproof housing 2, a waterproof gear box 3, an oil seal pressurized tank 4, and a power output shaft 5 And auxiliary heat dissipation fins 6, one end of the motor waterproof housing 2 is connected to the waterproof gear box 3 by screws, the other end of the motor waterproof housing 2 has a through hole to weld and install the motor active radiator 1, and the side of the motor waterproof housing 2 Auxiliary heat dissipation fins 6 are arranged at equal intervals, a set of frame connecting frames are welded on the surface of the waterproof gearbox 3, a power output shaft 5 is installed in a hole on one side of the waterproof gearbox 3, and an oil seal is installed in a hole opened on one side of the waterproof gearbox 3 Pressurized tank 4; the motor radiator 1 includes an active radiator housing 1-1, a heat dissipation fan 1-2, a heat pipe 1-3 and a heat conduction patch 1-4, and the surface of the active radiator housing 1-1 Open a through hole to install the air duct, install the heat dissipation fan 1-2 and the heat dissipation grill through the bracket in the air duct, and the heat dissipation grill is connected to the heat pipe 1-3 installed on the surface of the active radiator shell 1-1 through the pipeline 1-3 is fixedly pasted on the surface of the motor in the motor waterproof casing 2; when the motor is installed in the motor waterproof casing 2, the heat of the motor cannot be dissipated during operation, and long-term use will cause the motor to burn out. In order to ensure the long-term normal operation of the motor To run, the heat conduction pipe 1-3 of the motor active radiator 1 needs to conduct heat to the heat dissipation grille in the active radiator shell 1-1, and then the cooling fan 1-2 blows the cold air through the heat dissipation grille and takes it away excess heat, thus ensuring that the motor runs at normal temperature.

The waterproof gearbox 3 includes a gearbox housing 3-1, a transmission gear set 3-2, a power output shaft piston oil bag 3-3, a power input shaft piston oil bag 3-4, and a power input shaft annular oil seal 3- 5. The ring oil seal 3-6 of the power output shaft and the power input shaft 3-7, the transmission gear set 3-2 is installed inside the gearbox housing 3-1 through the bracket, and the gear of the power input shaft 3-7 passes through the transmission gear set 3- 2 Connect one end of the power output shaft 5, and install the oil seal pressurized tank 4 through a hole on the surface of the gearbox housing 3-1, and the oil seal pressurized tank 4 is respectively connected to the power output shaft piston oil bag 3-3 and the power input shaft piston through pipelines The oil bladder 3-4, the power output shaft piston oil bladder 3-3 is connected to the power output shaft annular oil seal 3-6 through the pipeline, the power input shaft piston oil bladder 3-4 is connected to the power input shaft annular oil seal 3-5 through the pipeline, The power output shaft annular oil seal 3-6 is socketed on the inner side of the gearbox housing 3-1 to the power output shaft 5, and the power input shaft annular oil seal 3-5 is socketed on the inner side of the gearbox housing 3-1 to the power input shaft 3-7. The power input shaft annular oil seal 3-5 and the power output shaft annular oil seal 3-6 are respectively fixedly connected to the inside of the gearbox housing 3-1; the power input shaft 3-7 is connected to the motor in the motor waterproof housing 2; In the wrapped state, the only place where water can enter is the through hole where the transmission shaft is installed. In order to ensure that these through holes will not enter water, the high-pressure air in the oil seal pressurization tank 4 compresses the power output shaft piston oil bag 3 -3 and the power input shaft piston oil bag 3-4, so that the lubricating oil in the power output shaft piston oil bag 3-3 and the power input shaft piston oil bag 3-4 is pressed into the power input shaft annular oil seal 3- through the pipeline 5 and the power output shaft annular oil seal 3-6, the power input shaft annular oil seal 3-5 and the power output shaft annular oil seal 3-6 are provided with grooves on the side facing the respective rotating shafts, and the lubricating oil is in the grooves. The pressure of the pressurized tank 4 fills all gaps, and the lubricating oil with pressure can effectively prevent water or sand from entering the motor. It is only necessary to regularly add lubricating oil and replace the oil seal pressurized tank 4 to ensure that the motor will not enter water.

In order to conduct heat better, as a further improvement of the present invention, the surface of the heat pipe 1-3 is welded to connect more than two heat conduction patches 1-4.

In order to further conduct heat better, as a further improvement of the present invention, the heat pipe 1-3 is pasted on the surface of the motor inside the motor waterproof casing 2 in a disk shape.

In order to reduce the cost of use, as a further improvement of the present invention, the oil-sealed pressurized tank 4 is encapsulated by a high-pressure carbon dioxide gas cylinder.

In order to ensure the waterproof effect, as a further improvement of the present invention, the pressure of the high-pressure carbon dioxide gas cylinder of the oil-sealed pressurized tank 4 is not lower than 3 MPa.

In order to further improve the working range of the motor, cope with more road conditions, and enable the motor to work within a suitable range, as a further improvement of the present invention, the transmission gear set 3-2 is equipped with an electronically controlled shifting device.

When in use, install a waterproof motor housing of a new energy vehicle, install the motor into the waterproof motor housing of a new energy vehicle, connect corresponding lines and transmission parts and equipment, and then put it into operation.

When the present invention is in use, concrete work is as follows:

After the motor is installed in the motor waterproof casing 2, the heat of the motor cannot be dissipated during operation, and long-term use will cause the motor to burn out. The heat is conducted to the cooling grid in the active radiator housing 1-1, and then the cooling fan 1-2 blows cold air through the cooling grid to take away excess heat, thereby ensuring that the motor operates at a normal temperature.

When the entire motor is wrapped, the only place where water can enter is the through hole where the transmission shaft is installed. In order to ensure that these through holes will not enter water, the high pressure air in the oil seal pressure tank 4 is used to compress the power output shaft piston. The oil bag 3-3 and the power input shaft piston oil bag 3-4, so that the lubricating oil in the power output shaft piston oil bag 3-3 and the power input shaft piston oil bag 3-4 is pressed into the ring of the power input shaft through the pipeline In the oil seal 3-5 and the power output shaft annular oil seal 3-6, the power input shaft annular oil seal 3-5 and the power output shaft annular oil seal 3-6 are provided with grooves on the sides facing the respective rotating shafts, and the lubricating oil is in the grooves , with the help of the pressure of the oil seal pressurized tank 4 to fill all the gaps, the lubricating oil with pressure can effectively prevent water or sediment from entering the motor, only need to regularly add lubricating oil and replace the oil seal pressurized tank 4 to ensure that the motor will not Ingress of water.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (6)

1. A waterproof motor shell of a new-energy motor vehicle comprises a motor driving radiator (1), a motor waterproof shell (2), a waterproof gear box (3), an oil seal pressurizing tank (4), power output shafts (5) and auxiliary heat dissipation fins (6), and is characterized in that one end of the motor waterproof shell (2) is connected with the waterproof gear box (3) through screws, the motor driving radiator (1) is welded and installed at the other end of the motor waterproof shell (2) through holes, the auxiliary heat dissipation fins (6) are arranged on the side edge of the motor waterproof shell (2) in an equidistant surrounding mode, a group of frame connecting frames are welded and installed on the surface of the waterproof gear box (3), the power output shafts (5) are installed at the through holes in the surface of one side of the waterproof gear box (3), and the oil seal pressurizing tank (4) is installed at the through holes in one side of the waterproof gear box (3); the motor radiator (1) comprises an active radiator shell (1-1), a heat dissipation fan (1-2), a heat conduction pipe (1-3) and a heat conduction patch (1-4), wherein a through hole is formed in the surface of the active radiator shell (1-1) to install an air duct, the heat dissipation fan (1-2) and a heat dissipation grid are installed in the air duct through a support, the heat dissipation grid is connected with the heat conduction pipe (1-3) installed on the surface of the active radiator shell (1-1) through a pipeline, and the heat conduction pipe (1-3) is fixedly adhered to the surface of a motor in the motor waterproof shell (2);

the waterproof gear box (3) comprises a gear box shell (3-1), a transmission gear set (3-2), a power output shaft piston oil bag (3-3), a power input shaft piston oil bag (3-4), a power input shaft annular oil seal (3-5), a power output shaft annular oil seal (3-6) and a power input shaft (3-7), wherein the transmission gear set (3-2) is installed inside the gear box shell (3-1) through a support, a gear of the power input shaft (3-7) is connected with one end of the power output shaft (5) through the transmission gear set (3-2), an oil seal pressurizing tank (4) is installed in a through hole formed in the surface of the gear box shell (3-1), the oil seal pressurizing tank (4) is respectively connected with a power output shaft piston oil bag (3-3) and a power input shaft piston oil bag (3-4) through pipelines, the power output shaft piston oil bag (3-3) is connected with a power output shaft annular oil seal (3-6) through a pipeline, the power input shaft piston oil bag (3-4) is connected with a power input shaft annular oil seal (3-5) through a pipeline, the power output shaft annular oil seal (3-6) is sleeved on the inner side of the gear box shell (3-1) and is connected with a power output shaft (5), and the power input shaft annular oil seal (3-5) is sleeved on the inner side of the gear box shell (3-1) and is connected with a power input shaft (3-5) 7), the power input shaft annular oil seal (3-5) and the power output shaft annular oil seal (3-6) are respectively and fixedly connected to the inner side of the gearbox shell (3-1); the power input shaft (3-7) is connected with a motor in the waterproof motor shell (2).

2. The waterproof motor casing of a new energy automobile according to claim 1, characterized in that the surface of the heat conducting pipe (1-3) is welded with more than two heat conducting patches (1-4).

3. The waterproof motor casing of a new energy automobile according to claim 2, characterized in that the heat conducting pipe (1-3) is in a shape of a disk and is adhered to the surface of the motor in the waterproof motor casing (2).

4. The waterproof motor housing of a new energy automobile according to claim 1, characterized in that the oil-sealed pressurized tank (4) is encapsulated with a carbon dioxide high-pressure gas cylinder.

5. The waterproof motor shell of the new energy automobile as claimed in claim 1 or 4, characterized in that the pressure of the high-pressure carbon dioxide cylinder of the oil-sealed pressure tank (4) is not lower than three MPa.

6. The watertight motor housing of a new energy vehicle according to claim 1, characterized in that said transmission gear set (3-2) is equipped with electrically controlled gear shifting.

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