Mounting structure of electric vehicle motor

Abstract

The utility model relates to a mounting structure of an electric vehicle motor, which comprises a vehicle frame, a motor, a locking screw and a plugging assembly, the vehicle frame is provided with a mounting cavity, the motor is plugged in the mounting cavity, the mounting cavity supports the motor and limits the pose of the motor, and the locking screw is connected with the motor and the vehicle frame; the plugging assembly comprises at least one first plugging piece and second plugging pieces in one-to-one correspondence with the first plugging pieces, the first plugging pieces are arranged on the motor, the plugging direction of the first plugging pieces is parallel to the direction in which the motor is inserted into the mounting cavity, the second plugging pieces are arranged in the mounting cavity, and the second plugging pieces are arranged in the mounting cavity. And when the locking screw is connected with the motor and the frame, the first connector is conductively connected with the second connector. The installation structure has the advantages of being more convenient to disassemble and assemble and good in safety.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to an installation structure for an electric vehicle motor. Background Technology

[0002] The motor of an electric motorcycle is typically bolted to the frame, which usually has multiple suspension bracket locking points for securing the motor. This installation structure is relatively simple, but it also has the following disadvantages: 1. The suspension bracket locking points on the frame need reinforcement, increasing the frame's weight; 2. Additional lifting lugs are needed for motor locking, further increasing the motor's weight; 3. The locking bolts usually use a doubling method, which is relatively cumbersome; 4. The motor wiring is relatively complex, and the exposed wiring poses certain security risks and offers poor theft prevention. Utility Model Content

[0003] The purpose of this utility model is to provide an installation structure for an electric vehicle motor that is easy to assemble and disassemble and has good safety.

[0004] To achieve the above objectives, this utility model discloses an installation structure for an electric vehicle motor, comprising a frame, a motor, a locking screw, and a connector assembly. The frame has a mounting cavity, in which the motor is inserted, and the mounting cavity supports the motor and restricts its position. The locking screw connects the motor and the frame. The connector assembly includes at least one first connector and two second connectors corresponding to the first connectors. The first connectors are disposed on the motor, and the insertion direction of the first connectors is parallel to the direction in which the motor is inserted into the mounting cavity. The second connectors are disposed in the mounting cavity. When the locking screw connects the motor and the frame, the first connectors and the second connectors are electrically connected.

[0005] With the above setup, the mounting cavity supports and restricts the motor's position. Once the motor is properly inserted into the mounting cavity, the locking screws connect the motor and the frame, preventing the motor from detaching from the mounting cavity. This way, the locking screws are not a primary support point for the motor installation, reducing the number of screws required and making assembly and disassembly easier. Furthermore, by using a connector assembly, the motor's power supply and signal lines can be connected simultaneously with its assembly onto the frame, offering quick and convenient connectivity. Moreover, the motor's wiring is internally housed within the mounting cavity, enhancing safety.

[0006] Preferably, the motor is provided with at least one limiting member, which cooperates with the mounting cavity to restrict the position and posture of the motor. By providing a limiting member on the motor to cooperate with the mounting cavity, reliable limiting of the motor is ensured, and the motor does not need to be integrally limited to the mounting cavity, which facilitates the lightweight design of the motor.

[0007] Preferably, the frame is provided with at least one limiting frame, and the shape of the limiting member matches the inner frame shape of the limiting frame. All the limiting frames constitute a mounting cavity. When the locking screw connects the motor and the frame, each limiting member corresponds to at least one limiting frame, or each limiting frame corresponds to at least one limiting member. This arrangement ensures reliable support and limiting of the motor, and since the mounting cavity is formed by the limiting frames, the mounting cavity does not need to be continuously arranged, which is beneficial for lightweight frame design.

[0008] Preferably, the limiting member is in the shape of a regular polygon. This design facilitates manufacturing and ensures reliable support and limiting of the motor.

[0009] Preferably, the limiting frame is a closed structure, or the limiting frame has at least one notch. Providing a notch in the limiting frame facilitates lightweight design of the vehicle frame.

[0010] Preferably, the limiting frames are spaced apart. This arrangement facilitates lightweight design of the vehicle frame.

[0011] Preferably, the inner wall of the mounting cavity is provided with at least one first directional member, and the motor is provided with a second directional member that cooperates with the first directional member. The first directional member and the second directional member cooperate to define the posture of the motor when inserted into the mounting cavity. This arrangement can ensure that the motor is correctly positioned when inserted into the mounting cavity, ensure that the first connector and the second connector are accurately and reliably connected, and ensure that the locking screw can reliably connect the frame and the motor.

[0012] Preferably, the direction in which the motor is inserted into the mounting cavity is parallel to the central axis of the motor; the first connector is disposed on the end face of the motor, and the second connector is disposed at the bottom of the mounting cavity. This arrangement facilitates the installation of the first and second connectors and the connection between them. Furthermore, with the first connector disposed on the end face of the motor, the electrical connection between the first connector and the motor is simpler and more convenient.

[0013] Preferably, the frame has through holes corresponding to the locking screws, the through holes connecting to the mounting cavity, and the locking screws passing through the through holes to be threadedly connected to the motor; the locking screws are anti-theft screws. This configuration simplifies the connection between the frame and the motor, making the connection convenient. Using anti-theft screws further enhances the motor's anti-theft performance.

[0014] Preferably, the mounting cavity has a horizontal opening and is positioned close to the rear swingarm pivot of the frame. A horizontal opening facilitates motor installation, provides better motor support, and reduces stress on the locking screws. Positioning the mounting cavity close to the rear swingarm pivot offers the following advantages: 1. It helps reduce center of gravity shift during driving, improving vehicle handling stability, especially at high speeds or during sharp turns. This design reduces the risk of rollover, making it easier for the driver to control the vehicle. 2. It facilitates more direct and efficient power transmission to the wheels, reducing energy loss during power transmission and improving acceleration and driving efficiency. 3. It improves vehicle balance, allowing the vehicle to maintain a level position better during driving, reducing vibrations caused by bumps or uneven road surfaces, and improving ride comfort. 4. It helps reduce the burden on the braking system. Because the motor is close to the rear swingarm pivot, the vehicle can better utilize the weight distribution of the vehicle body during braking, reducing wear and heat accumulation in the braking system and extending its service life. 5. Makes motor maintenance and upkeep more convenient. When it is necessary to inspect or replace the motor, technicians can more easily access the motor to perform the necessary repairs and maintenance.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model supports and restricts the position of the motor through the mounting cavity. After the motor is inserted into the mounting cavity, the motor and the frame are connected by locking screws, thus preventing the motor from coming out of the mounting cavity. In this way, the locking screws are not the main support nodes for motor installation, and the number of locking screws can be reduced, making disassembly and assembly more convenient. Furthermore, by setting up a connector assembly, the power supply and signal lines of the motor can be connected at the same time as the motor is assembled onto the frame, which is quick and convenient. Moreover, the motor wiring is built into the mounting cavity, which improves safety.

[0017] 2. The connection structure of this utility model can facilitate the lightweight design of the frame and motor, thereby reducing the overall vehicle weight. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram from another perspective of the present invention.

[0020] Figure 3 This is an exploded view of the present invention.

[0021] Figure 4 This is a cross-sectional view of the present invention.

[0022] Figure 5 This is a cross-sectional view of the present invention from another angle.

[0023] Figure 6 This is a partial schematic diagram of the chassis.

[0024] Figure 7 This is a schematic diagram of an electric motor.

[0025] Figure 8 This is a schematic diagram showing the fit between the first and second positioning components.

[0026] Note: Figure 1-7 Neither the first nor the second positioning element is shown in the diagram.

[0027] Explanation of symbols for main components:

[0028] Frame 10, mounting cavity 11, limiting frame 12, notch 13, through hole 14, first positioning component 15;

[0029] Motor 20, limiting component 21, second positioning component 23;

[0030] Locking screw 30;

[0031] First connector 41, second connector 42. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1-8 As shown, this utility model discloses an installation structure for an electric vehicle motor 20, which includes a frame 10, a motor 20, a locking screw 30, and a connector assembly. A mounting cavity 11 is provided on the frame 10 near the pivot point of the rear rocker arm, and the opening of the mounting cavity 11 faces horizontally. The motor 20 can be inserted into the mounting cavity 11 from outside the frame 10, and the mounting cavity 11 supports the inserted motor 20 and restricts its position; that is, the motor 20 can only move in a fixed position along the depth direction of the mounting cavity 11; specifically, along the depth direction of the mounting cavity 11 is the forward direction, and the seat of the motor 20 can only move forward and backward, but cannot rotate, move left, right, up, or down. It is preferable that the direction in which the motor 20 is inserted into the mounting cavity 11 is parallel to the central axis of the motor 20.

[0034] More specifically, at least one limiting frame 12 is provided on the frame 10. The limiting frame 12 can be connected to the frame 10 by means of integral molding, welding, or bolt connection. The limiting frames 12 are arranged at intervals on the same straight line, and the inner frame of all the limiting frames 12 constitutes the mounting cavity 11. The limiting frame 12 has a certain width to ensure surface support for the motor 20. The inner frame of the limiting frame 12 is a regular polygon, in this case, a regular hexagon. The mutually spaced limiting frames 12 make the mounting cavity 11 a non-continuous structure, which can reduce the weight of the frame 10. In addition, in order to further promote the lightweight design of the frame 10, at least one notch 13 can be provided on the limiting frame. The notches 13 on different limiting frames can be staggered, as long as each limiting frame can reliably support and limit the motor 20. Of course, the limiting frame can also be a closed structure without notches 13.

[0035] Correspondingly, in order to achieve a lightweight design for the motor 20 and ensure reliable positioning between the motor 20 and the mounting cavity 11, at least one limiting member 21 is provided on the motor 20. The limiting member 21 can be integrally formed on the outer shell of the motor 20. The motor 20 is positioned and engaged with the limiting frame 12 through the limiting member 21. The shape of the limiting member 21 is adapted to the inner frame shape of the limiting frame 12. When the motor 20 is inserted into the mounting cavity 11, each limiting member 21 corresponds to at least one limiting frame 12, or each limiting frame 12 corresponds to at least one limiting member 21. In this case, two limiting members 21 are provided. When the motor 20 is inserted into the mounting cavity 11, both the limiting frame 12 located at the deepest part of the mounting cavity 11 and the limiting frame 12 closest to the opening of the mounting cavity 11 abut against a limiting member 21, thereby realizing the supporting and limiting function of the mounting cavity 11 for the motor 20. The limiting member 21 has a certain thickness to ensure reliable contact with the limiting frame 12 and to ensure reliable support for the motor 20. The other limiting frames located between the two limiting frames can serve as guides during the insertion of the motor 20.

[0036] When the motor 20 is inserted into the mounting cavity 11, the motor 20 and the frame 10 are connected by at least one locking screw 30. Specifically, the frame 10 has through holes 14 corresponding to the locking screws 30 one by one. The through holes 14 connect to the bottom of the mounting cavity 11, and the hole direction of the through holes 14 is parallel to the depth direction of the mounting cavity 11. The locking screws 30 pass through the through holes 14 and are threadedly connected to the motor 20. By locking the locking screws 30, the motor 20 can be stopped in the mounting cavity 11. Because the mounting cavity 11 supports and limits the motor 20, compared with the existing motor 20 connection structure of electric vehicles, the locking screws 30 in this case do not serve as the main support node and force point for the installation of the motor 20. Therefore, the number of locking screws 30 does not need to be large, which facilitates the installation and removal of the motor 20. Anti-theft screws are preferably used for the locking screws 30.

[0037] The connector assembly is designed to improve the wiring efficiency of the motor 20 and enhance the safety and concealment of the electrical connection. Specifically, the connector assembly includes at least one first connector 41 and a corresponding second connector 42. The first connector 41 connects to the power and signal terminals (if any) on the motor 20 via wires or busbars. The second connector 42 connects to the electric vehicle's controller and / or battery via wires. Preferably, there is only one first connector 41, which can have multiple connection terminals to correspond to the power supply and signal lines (if any). The first connector 41 is located on the end face (or end cover) of the motor 20, and the insertion direction of the first connector 41 is parallel to the direction in which the motor 20 is inserted into the mounting cavity 11. The second connector 42 is located at the bottom of the mounting cavity 11. When the locking screw 30 connects the motor 20 and the frame 10, or when the motor 20 is fully inserted into the mounting cavity 11, the first connector 41 and the second connector 42 interlock and complete the conductive connection. In this way, no special wiring is required when assembling the motor 20, making disassembly and assembly more efficient.

[0038] To ensure correct connection of the connector components, consistent installation posture of the motor 20, and accurate and reliable connection of the locking screw 30 to the motor 20, at least one first directional member can be provided on the inner wall of the mounting cavity 11. A second directional member, cooperating with the first directional member, is provided on the motor 20. The first directional member and the second positioning member 23 cooperate to limit the posture of the motor 20 inserted into the mounting cavity 11. The first positioning member 15 can be a protrusion, and the second positioning member 23 can be a groove adapted to the protrusion, such as... Figure 8 As shown. Of course, the shape of the limiting member 21 (the inner frame shape of the limiting frame 12) can also be set to an asymmetrical structure, in which case the first positioning member 15 and the second positioning member 23 are not needed. In addition, if the installation posture of the motor 20 can be guaranteed to be correct before the motor 20 is assembled, the first positioning member 15 and the second positioning member 23 can also be omitted. The setting of the first positioning member 15 and the second positioning member 23 is just to add an extra layer of protection.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting structure for an electric vehicle motor, characterized in that: The system includes a frame, a motor, locking screws, and a connector assembly. The frame has a mounting cavity, in which the motor is inserted and supported, and the mounting cavity also restricts the motor's position. The locking screws connect the motor and the frame. The connector assembly includes at least one first connector and two corresponding second connectors. The first connectors are mounted on the motor, and their insertion direction is parallel to the direction in which the motor is inserted into the mounting cavity. The second connectors are located within the mounting cavity. When the locking screws connect the motor and the frame, the first and second connectors are electrically connected.

2. The mounting structure for an electric vehicle motor according to claim 1, characterized in that: The motor is provided with at least one limiting member, which cooperates with the mounting cavity to restrict the position and posture of the motor.

3. The mounting structure for an electric vehicle motor according to claim 2, characterized in that: The frame is provided with at least one limiting frame, and the shape of the limiting member is adapted to the inner frame shape of the limiting frame. All the limiting frames constitute an installation cavity. When the locking screw connects the motor and the frame, each limiting member corresponds to at least one limiting frame, or each limiting frame corresponds to at least one limiting member.

4. The mounting structure for an electric vehicle motor according to claim 3, characterized in that: The limiting member has a regular polygonal shape.

5. The mounting structure for an electric vehicle motor according to claim 4, characterized in that: The limiting frame is a closed structure, or the limiting frame has at least one notch.

6. The mounting structure for an electric vehicle motor according to claim 3, characterized in that: The limiting frames are spaced apart.

7. The mounting structure for an electric vehicle motor according to claim 1, characterized in that: The inner wall of the mounting cavity is provided with at least one first directional member, and the motor is provided with a second directional member that cooperates with the first directional member. The first directional member and the second directional member cooperate to limit the posture of the motor when it is inserted into the mounting cavity.

8. The mounting structure for an electric vehicle motor according to claim 1, characterized in that: The direction in which the motor is inserted into the mounting cavity is parallel to the central axis of the motor; the first connector is disposed on the end face of the motor, and the second connector is disposed at the bottom of the mounting cavity.

9. The mounting structure for an electric vehicle motor according to claim 1, characterized in that: The frame is provided with through holes corresponding to the locking screws. The through holes connect to the mounting cavity, and the locking screws pass through the through holes and are threadedly connected to the motor. The locking screws are anti-theft screws.

10. The mounting structure for an electric vehicle motor according to claim 1, characterized in that: The opening of the mounting cavity is oriented horizontally; the mounting cavity is located near the rear rocker arm pivot of the vehicle frame.

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