Motor fixing structure for electric vehicle

Abstract

The utility model provides a motor fixing structure for an electric vehicle, and belongs to the technical field of electric vehicle motors. The motor fixing structure for the electric vehicle comprises a support and a motor body, the support is provided with a water tank A, the water tank A is detachably connected with a water tank B, the motor body is inserted into the support in the radial direction, the water tank A and the water tank B wrap the motor body, and cooling liquid circulates in the water tank A and the water tank B. The water-cooled motor has the advantages that the motor body is inserted into the water tank A while being inserted into the support, then the water tank B is clamped on the motor body to form a complete water channel used for circulating cooling liquid to achieve the water-cooled heat dissipation effect, the water tank A and the water tank B also protect the motor body, and the water tank B can be detached so that the motor body can be detached conveniently.

Description

Technical Field

[0001] This application relates to the technical field of electric vehicle motors, and more particularly, to a motor fixing structure for an electric vehicle. Background Art

[0002] Most traditional electric vehicle motors are fixedly installed under the electric vehicle. During long-term driving, the surface of the electric vehicle motor is easily wrapped by dirt and is also easily impacted by foreign objects, thus affecting the heat dissipation and lifespan of the electric vehicle motor. Summary of the Utility Model

[0003] To make up for the above deficiencies, this application provides a motor fixing structure for an electric vehicle, aiming to improve the problems mentioned in the above background art.

[0004] An embodiment of this application provides a motor fixing structure for an electric vehicle, including a bracket and a motor body. A water tank A is provided on the bracket, and a water tank B is detachably connected to the water tank A. The motor body is radially inserted into the bracket, and the water tank A and the water tank B wrap the motor body therein. A coolant flows through the water tank A and the water tank B.

[0005] In a specific implementation, both ends of the motor body are flange-connected to both ends of the bracket.

[0006] In a specific implementation, the motor body is arranged with two shafts, and a notch is provided on the bracket.

[0007] In the above implementation process, the motor body is radially inserted into the bracket, and the two output shafts of the motor body pass through the notch, so that the screw holes at both ends of the motor body correspond to the vacant positions on the bracket, and then they can be fixed with bolts. In this embodiment, a protrusion is provided on the bracket to be pin-connected with the motor body, thereby reducing the stress on the bolts, improving the fixing force, and also helping to position the motor body.

[0008] In a specific implementation, a mounting plate is provided on the bracket.

[0009] In the above implementation process, the mounting plate is used to connect the bracket to the vehicle frame of the electric vehicle.

[0010] In a specific implementation, ear plates are fixedly connected to both the water tank A and the water tank B.

[0011] In a specific implementation, a sealing ring is provided on the mating surface of the water tank A and the water tank B.

[0012] In the above implementation process, the ear plate is used to fix the water tank B to the water tank A through bolts. When the water tank A and the water tank B are fitted together, a sealing ring is used to improve the sealing performance. The sealing ring also exists at the positions where the motor body is in contact with the water tank A and the water tank B to improve the sealing performance.

[0013] In a specific embodiment, heat sinks are provided on the inner sides of the water tank A and the water tank B and on the outer circumference of the motor body.

[0014] In a specific embodiment, the water tank A is provided with two water inlets and outlets, one for inlet and one for outlet.

[0015] In the above implementation process, the heat sinks are staggered with each other to improve the sealing performance and form an annular water channel. The coolant enters the water channel in a tangential direction from one of the water inlets, flows around the motor body, and exits from the other water inlet, thereby achieving good heat dissipation. Since the heat sinks are annular, when the motor body is inserted radially, there will be no interference between the heat sinks. It should be noted that the coolant can be shared with the electric vehicle air conditioning system through a distribution valve, or a separate heat exchanger can be used for heat dissipation.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: When the motor body is inserted into the bracket, it is also inserted into the water tank A at the same time. Then, the water tank B is clamped on the motor body to form a complete water channel for circulating the coolant to achieve the effect of water-cooled heat dissipation. The water tank A and the water tank B also protect the motor body, and the water tank B can be disassembled to facilitate the disassembly of the motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic diagram of the motor fixing structure for an electric vehicle provided by the embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the connection relationship between the motor body and the bracket provided by the embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the connection relationship between the water tank A and the bracket provided by the embodiment of the present application;

[0021] Figure 4 is a schematic diagram of the heat sink and the water tank A provided by the embodiment of the present application.

[0022] In the figure: 10 - bracket; 20 - motor body; 30 - water tank A; 40 - water tank B; 50 - mounting plate; 60 - ear plate; 70 - sealing ring; 80 - heat sink; 90 - water inlet / outlet. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application.

[0024] Please refer to Figures 1 - 4 , the present application provides a motor fixing structure for an electric vehicle, including a bracket 10 and a motor body 20. A water tank A 30 is arranged on the bracket 10, and a water tank B 40 is detachably connected to the water tank A 30. The motor body 20 is radially inserted into the bracket 10, and the water tank A 30 and the water tank B 40 wrap the motor body 20 therein, and a coolant flows in the water tank A 30 and the water tank B 40. Among them, when the motor body 20 is inserted into the bracket 10, it is also inserted into the water tank A 30 at the same time, and then the water tank B 40 is stuck on the motor body 20 to form a complete water channel for the coolant to flow through to achieve the effect of water-cooled heat dissipation. The water tank A 30 and the water tank B 40 also protect the motor body 20, and the water tank B 40 can also be disassembled to facilitate the disassembly of the motor body 20.

[0025] Please refer to Figures 1 - 4 , both ends of the motor body 20 are flange-connected to both ends of the bracket 10. The motor body 20 is arranged with two shafts, and a notch is opened on the bracket 10. The motor body 20 is radially inserted into the bracket 10, and the two output shafts of the motor body 20 pass through the notch, so that the screw holes at both ends of the motor body 20 correspond to the vacant positions on the bracket 10, and then they can be fixed by bolts. In this embodiment, a protrusion is arranged on the bracket 10 to be pin-connected with the motor body 20, thereby reducing the stress on the bolts, improving the fixing force, and also helping to position the motor body 20.

[0026] Please refer to Figures 1 - 4 , a mounting plate 50 is arranged on the bracket 10. The mounting plate 50 is used to connect the bracket 10 to the vehicle frame of the electric vehicle.

[0027] Please refer to Figures 1 - 4 , ear plates 60 are fixedly connected to both the water tank A 30 and the water tank B 40. A sealing ring 70 is arranged on the joint surface of the water tank A 30 and the water tank B 40. The ear plate 60 is used to fix the water tank B 40 to the water tank A 30 by bolts. When the water tank A 30 and the water tank B 40 are attached, the sealing ring 70 is used to improve the sealing performance. The sealing ring 70 also exists at the positions where the motor body 20 is attached to the water tank A 30 and the water tank B 40 to improve the sealing performance.

[0028] Please refer to Figures 1 - 4, heat sinks 80 are provided on the inner sides of the water tank A30 and the water tank B40 and on the outer circumference of the motor body 20. Two water inlets and outlets 90 are provided on the water tank A30. The heat sinks 80 are staggered from each other to improve the sealing performance and form an annular water channel. The coolant enters the water channel in a tangential direction from one of the water inlets and outlets 90, flows around the motor body 20, and flows out from the other water inlet and outlet 90, thereby achieving good heat dissipation. Since the heat sinks 80 are annular, when the motor body 20 is radially inserted, there will be no interference between the heat sinks 80 compared with the conventional radiation structure. It should be noted that the coolant can be shared with the electric vehicle air conditioning system through a distribution valve, or a heat exchanger can be used alone for heat dissipation.

[0029] The working principle of the motor fixing structure for electric vehicles is as follows: The motor body 20 is radially inserted into the bracket 10. The two output shafts of the motor body 20 pass through the notches, so that the screw holes at both ends of the motor body 20 correspond to the vacancies on the bracket 10, and then they can be fixed with bolts. Then, the water tank B40 is fixed to the water tank A30 with bolts, and the sealing ring 70 is used to ensure the sealing performance. The coolant enters the water channel in a tangential direction from one of the water inlets and outlets 90, flows around the motor body 20, and flows out from the other water inlet and outlet 90, thereby achieving good heat dissipation. In summary, when the motor body 20 is inserted into the bracket 10, it is also inserted into the water tank A30 at the same time. Then, the water tank B40 is clamped on the motor body 20 to form a complete water channel for circulating the coolant to achieve the effect of water-cooled heat dissipation. The water tank A30 and the water tank B40 also protect the motor body 20, and the water tank B40 can also be disassembled to facilitate the disassembly of the motor body 20.

[0030] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, improvement, or equivalent replacement made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A motor fixing structure for an electric vehicle, characterized in that: The invention comprises a bracket (10) and a motor body (20), wherein a water tank A (30) is arranged on the bracket (10), a water tank B (40) is detachably connected to the water tank A (30), the motor body (20) is radially inserted into the bracket (10), the water tank A (30) and the water tank B (40) wrap the motor body (20), and a coolant flows in the water tank A (30) and the water tank B (40).

2. A motor fixing structure for an electric vehicle according to claim 1, characterized in that: Two ends of the motor body (20) are respectively flange-connected to two ends of the bracket (10).

3. A motor fixing structure for an electric vehicle according to claim 2, characterized in that: The motor body (20) is arranged in a double-axis manner, and a notch is provided on the bracket (10).

4. A motor fixing structure for an electric vehicle according to claim 3, characterized in that: A mounting plate (50) is provided on the bracket (10).

5. The motor fixing structure for an electric vehicle according to claim 4, characterized in that: The water tank A (30) and the water tank B (40) are both fixedly connected with ear plates (60).

6. A motor fixing structure for an electric vehicle according to claim 5, characterized in that: A sealing ring (70) is provided on the mating surfaces of the water tank A (30) and the water tank B (40).

7. A motor fixing structure for an electric vehicle according to claim 6, characterized in that: The inner sides of the water tank A (30) and the water tank B (40) and the outer circumference of the motor body (20) are all provided with heat sinks (80).

8. The motor fixing structure for an electric vehicle according to claim 7, characterized in that: The water tank A (30) is provided with two water inlets (90), one for inlet and one for outlet.

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