New energy automobile driving motor with shell water cooling structure

Abstract

The utility model discloses a new energy automobile driving motor with a shell water cooling structure, which belongs to the technical field of automobile motors and comprises a shell of the driving motor and two water cooling covers mounted on the periphery of the shell in a holding manner, water flow channels are arranged in the water cooling covers, and the water flow channels are communicated with the water cooling covers. A water inlet and a water outlet are formed in the outer wall of the water cooling cover, and both the water inlet and the water outlet are communicated with the water flow channel; the ends, away from the water inlet, of the two communicating pipes are jointly connected with a distribution pipe, the periphery of the distribution pipe is fixedly connected with a main water pipe, and the main water pipe is communicated with the interior of the distribution pipe. Water is conveyed to the two communicating pipes through the distribution pipe, then enters the water flow channels of the two water cooling covers through the communicating pipes and is finally discharged through the water outlet, and the water flows in the water flow channels, so that heat of the shell is taken away, and the heat dissipation efficiency of the driving motor is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive motor technology, specifically relating to a new energy vehicle drive motor with a water-cooled outer shell structure. Background Technology

[0002] New energy vehicles refer to vehicles that are powered by onboard power sources, drive wheels with electric motors, and meet all road traffic and safety regulations. Due to their relatively smaller environmental impact compared to traditional vehicles, their prospects are widely viewed favorably. The power source provides electrical energy to the drive motor of the electric vehicle, which converts this electrical energy into mechanical energy, driving the wheels and working devices through a transmission device or directly.

[0003] During operation, the heat generated inside the drive motor of a new energy vehicle is generally dissipated through the drive motor casing. However, under abnormal operating conditions, such as when the vehicle is overloaded, the heat dissipation of the drive motor cannot be quickly dissipated through the casing, which leads to excessively rapid temperature rise inside the drive motor and has a significant impact on the drive motor. Therefore, it is necessary to improve the heat dissipation of existing drive motors in new energy vehicles. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new energy vehicle drive motor with a water-cooled outer shell structure.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A new energy vehicle drive motor with a water-cooled housing structure includes a drive motor housing and further includes:

[0007] Two water-cooling covers are mounted on the periphery of the outer shell. The water-cooling covers have water flow channels inside, and the outer wall of the water-cooling covers has water inlets and drain outlets. The water inlets and drain outlets are connected to the water flow channels.

[0008] A connecting pipe is connected to the water inlet, and the ends of the two connecting pipes away from the water inlet are connected to a distribution pipe. A main water pipe is fixed to the periphery of the distribution pipe, and the main water pipe communicates with the interior of the distribution pipe.

[0009] Through the above technical solution, the external water supply system delivers water to the main water pipe, then to the two connecting pipes through the distribution pipe, and then into the water flow channels of the two water-cooled covers through the connecting pipe, and finally discharged from the drain outlet. The water flows in the water flow channels, thereby carrying away the heat of the outer shell and improving the heat dissipation efficiency of the drive motor.

[0010] Furthermore, each end of the water-cooling cover is fixedly connected to an abutment portion, and the abutment portions at the ends of the two water-cooling covers are connected in contact and are detachably connected by multiple bolt pairs.

[0011] The above technical solution involves pressing the abutting parts of the two water-cooling covers together, and then connecting the abutting parts with bolts, thereby enabling the two water-cooling covers to be assembled quickly.

[0012] Furthermore, the outer contour of the water-cooling cover is arc-shaped, and the abutting portions of the two water-cooling covers abut together to form a ring-shaped structure, and the outer shell is installed inside the ring-shaped structure.

[0013] Through the above technical solution, the arc-shaped outer contour design allows the water-cooling cover to fit snugly against the periphery of the outer shell, maximizing the contact area with the outer shell.

[0014] Furthermore, the water-cooling cover is made of brass.

[0015] The above technical solution enables the heat of the water-cooled cover to be dissipated quickly.

[0016] Furthermore, the length of the water-cooling cover is not less than half the length of the outer shell.

[0017] The above technical solution allows for a larger contact area between the water-cooled cover and the outer shell.

[0018] Furthermore, each end of the distribution pipe is fixedly connected to a connecting post, and the connecting post has a cavity inside. The cavity is connected to the distribution pipe and the connecting pipe, and a connecting unit is provided inside the cavity.

[0019] The above technical solution involves setting up a connecting unit so that when water flows through the cavity of the connecting column in the water supply system, the connecting unit is triggered to operate, thereby allowing water to enter the water flow channel of the water cooling cover from the connecting column.

[0020] Furthermore, the communication unit includes a fixed plug that is fixedly engaged and installed in the cavity. The end face of the fixed plug has a through hole coaxially formed. A sliding plug is engaged and installed in the cavity. The sliding plug slides freely in the cavity. The end face of the sliding plug has multiple communication grooves. The communication grooves are staggered from the communication hole, so that when the end face of the fixed plug and the end face of the sliding plug abut against each other, the abutting surfaces of the two are sealed. An elastic element is also installed in the cavity. The elastic element elastically abuts against the sliding plug in the direction of the fixed plug.

[0021] Through the above technical solution, the elastic element generates an elastic resisting force on the sliding plug, thereby enabling the sliding plug to have a certain degree of buffering when water flows impact the end face of the sliding plug.

[0022] Furthermore, the elastic element includes a spring installed in the cavity, with the two ends of the spring elastically abutting against the end face of the sliding plug and the inner wall of the cavity, respectively.

[0023] Through the above technical solution, the spring exerts a preload on the sliding plug, causing the end face of the sliding plug to abut against the end face of the fixed plug.

[0024] Furthermore, a drive rod is fixedly inserted through the end face of the sliding plug, the drive rod penetrates the distribution pipe and slides freely, and an adjustment component is provided on the main water pipe, the adjustment component being used to drive the two drive rods to move synchronously in opposite directions.

[0025] Through the above technical solution, the two drive rods are driven to move synchronously in opposite directions by the adjustment component, thereby enabling the water flow in the two cavities to be in a balanced state.

[0026] Furthermore, the adjustment assembly includes a rotating frame sleeved on the main water pipe, the rotating frame being rotatably connected to the periphery of the main water pipe, a swing arm fixedly connected to each end of the rotating frame, a sliding pin passing through the end of the drive rod, an oblong hole for the sliding pin to be inserted into the outer wall of the rotating frame, an electromagnet embedded in the sliding plug, the electromagnet and the fixed plug forming a magnetic engagement, a sensing block fixedly connected to each end of the outer wall of the distribution pipe, and a proximity switch for cooperating with the sensing block passing through the swing arm.

[0027] With the above technical solution, when the water flow rate in one of the connecting pipes increases instantaneously, it may cause a large difference in the water flow rate between the two connecting pipes, which in turn leads to a large difference in the water flow rate in the two water-cooling covers, affecting the cooling of the outer shell. Therefore, when the water flow rate in one of the connecting pipes increases instantaneously, it will drive the corresponding swing arm to rotate, causing the sliding pins at the ends of the two drive rods to slide in the two oblong holes respectively, thereby causing the two drive rods to move synchronously in opposite directions. Through the cooperation of the proximity switch and the sensing block, the proximity switch generates a sensing signal, which then controls the corresponding electromagnet to be energized, causing the sliding plug to move towards the fixed plug, causing the end faces of the fixed plug and the sliding plug to briefly abut against each other, thereby causing the water flow in one connecting pipe to stop briefly, and then resume, thus achieving the adjustment of the water flow rate in the two connecting pipes.

[0028] The beneficial effects of this utility model are as follows:

[0029] In this invention, the external water supply system delivers water to the main water pipe, then to two connecting pipes via the distribution pipe, and then into the water flow channels of the two water-cooling covers via the connecting pipes, finally being discharged from the drain outlet. The water flows in the water flow channels, thereby carrying away the heat of the outer shell and improving the heat dissipation efficiency of the drive motor.

[0030] In this utility model, a connecting unit is provided so that when water in the water supply system flows in the cavity of the connecting column, the connecting unit is triggered to act, thereby allowing water to enter the water flow channel of the water cooling cover from the connecting column.

[0031] In this invention, the swing arm rotates, causing the sliding pins at the ends of the two drive rods to slide in the two oblong holes respectively, thereby causing the two drive rods to move synchronously in opposite directions, thus balancing the water flow in the two connecting pipes, so that the water flow rate in the two water-cooling covers tends to be consistent, avoiding large local temperature differences in the drive motor housing. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a new energy vehicle drive motor with a water-cooled outer shell, according to this utility model.

[0033] Figure 2 yes Figure 1 Another structural diagram from a different perspective;

[0034] Figure 3 yes Figure 1 A schematic diagram of the structure after omitting the outer shell;

[0035] Figure 4 This is a schematic diagram of the structure of the distribution pipe, connecting column and rotating frame after assembly in this utility model;

[0036] Figure 5 yes Figure 4 Enlarged schematic diagram of the local structure at point A;

[0037] Figure 6 This is a schematic diagram of the structure of the fixed plug, sliding plug and drive rod after assembly in this utility model;

[0038] Figure 7 yes Figure 6 Schematic diagram of the explosive decomposition of the medium structure;

[0039] Figure 8 yes Figure 7 A structural diagram from another perspective;

[0040] Figure 9 This is a schematic diagram of the structure of the water-cooled cover in this utility model;

[0041] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure.

[0042] Reference numerals: 1. Outer shell; 2. Drain outlet; 3. Water-cooled cover; 4. Connecting pipe; 5. Bolt pair; 6. Connecting column; 7. Distribution pipe; 8. Swing arm; 9. Rotating frame; 10. Main water pipe; 11. Water inlet; 12. Abutment part; 13. Waist-shaped hole; 14. Sliding pin; 15. Drive rod; 16. Sliding plug; 17. Spring; 18. Cavity; 19. Fixed plug; 20. Water flow channel; 21. Connecting hole; 22. Connecting groove; 23. Proximity switch; 24. Sensing block. Detailed Implementation

[0043] 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. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] like Figures 1-10 As shown, this embodiment provides a new energy vehicle drive motor with a water-cooled outer shell structure, including a drive motor shell 1. Two water-cooled covers 3 are mounted on the shell 1. The outer contour of the water-cooled covers 3 is arc-shaped, and the inner arc surface of the water-cooled covers 3 engages with the periphery of the shell 1. Each end of the water-cooled covers 3 is integrally formed and fixed with an abutment portion 12. Multiple bolt through holes are opened on the two abutment portions 12. Bolt pairs 5 are installed in the bolt through holes. The two water-cooled covers 3 are assembled together by the bolt pairs 5, forming a ring structure. The shell 1 is engaged in the ring structure.

[0045] The water cooling cover 3 has a water flow channel 20 inside. The outer wall of the water cooling cover 3 has a water inlet 11 and a drain outlet 2. The water inlet 11 and the drain outlet 2 are connected to the water flow channel 20. Each of the two water inlets 11 is equipped with a connecting pipe 4. The ends of the two connecting pipes 4 away from the water inlet 11 are connected to a distribution pipe 7. The periphery of the distribution pipe 7 is fixed with a main water pipe 10. The main water pipe 10 is connected to the inside of the distribution pipe 7. The water cooling cover 3 is made of brass. The length of the water cooling cover 3 is not less than half the length of the outer shell 1.

[0046] Each end of the distribution pipe 7 is fixedly connected to a connecting post 6. A cavity 18 is formed inside the connecting post 6, communicating with both the distribution pipe 7 and the connecting pipe 4. A fixed plug 19 is fixedly fitted inside the cavity 18. A through-hole 21 is coaxially formed on the end face of the fixed plug 19. A sliding plug 16 is fitted inside the cavity 18, sliding freely within it. Multiple connecting grooves 22 are formed on the end face of the sliding plug 16, staggered from the connecting holes 21, ensuring a seal between the fixed plug 19 and the sliding plug 16 when they abut. A spring 17 is installed inside the cavity 18, with its two ends elastically abutting against the end face of the sliding plug 16 and the inner wall of the cavity 18, respectively. A drive rod 15 is fixedly inserted through the end face of the plug 16. The drive rod 15 penetrates the distribution pipe 7 and slides freely. A rotating frame 9 with a U-shaped outer contour is sleeved on the main water pipe 10. The rotating frame 9 is rotatably connected to the periphery of the main water pipe 10. A swing arm 8 is fixedly connected to each end of the rotating frame 9. A sliding pin 14 is inserted through the end of the drive rod 15. An oblong hole 13 for the sliding pin 14 to be inserted is opened on the outer wall of the rotating frame 9. An electromagnet (not shown in the figure) is embedded in the sliding plug 16. The electromagnet and the fixed plug 19 form a magnetic cooperation. A sensing block 24 is fixedly connected to each end of the outer wall of the distribution pipe 7. A proximity switch 23 for cooperating with the sensing block 24 is inserted through the swing arm 8. In this embodiment, the fixed plug 19 is made of a magnetic material (any one of iron, cobalt, or nickel).

[0047] The working principle of this embodiment is as follows:

[0048] The external water supply system delivers cooling water to the main water pipe 10. The cooling water enters the distribution pipe 7 and then flows into the cavity 18 of the two connecting columns 6, generating a thrust on the sliding plug 16. This causes the sliding plug 16 to tend to move away from the fixed plug 19. At the same time, the spring 17 acts as a buffer for the sliding plug 16, and the two springs 17 generate elastic resisting forces on the two sliding plugs 16 respectively. This ensures that the two sliding plugs 16 are in the same position in the cavity 18 in the initial state, and that the length direction of the swing arm 8 is perpendicular to the axis of the main water pipe 10.

[0049] Cooling water then enters the connecting pipe 4 through cavity 18, and then enters the water flow channel 20 of the water-cooled cover 3. It is then discharged from the drain outlet 2 into the external cooling water recovery system, thereby removing heat from the surface of the outer casing 1. Additionally, when the water flow rate in one of the cavities 18 increases instantaneously, the sliding plug 16 within that cavity 18 experiences a greater impact force from the water flow. This causes the sliding plug 16 to overcome the elastic resistance of the spring 17 within the cavity 18 and move away from the fixed plug 19 with a significant amplitude. This causes the end of the swing arm 8 corresponding to the sliding plug 16 to swing towards the distribution pipe 7, and causes the proximity switch 23 and the sensing block 24 on that side to interact. When the object approaches, the proximity switch 23 generates a sensing signal, which is fed back to the vehicle's control module. The control module receives the signal and controls the electromagnet corresponding to the sliding plug 16 to be energized momentarily, so that the electromagnet generates a magnetic attraction force on the fixed plug 19, thereby driving the sliding plug 16 to move rapidly toward the fixed plug 19 until the end face of the sliding plug 16 and the end face of the fixed plug 19 abut against each other. After a certain delay (which can be set to 1 second), the power supply to the electromagnet is then disconnected. Through the impact force of the water flow and the release of the elastic potential energy stored in the spring 17 on the other side, the two sliding plugs 16 move synchronously in opposite directions in the cavity 18 until their positions in the cavity 18 tend to be the same.

[0050] In this embodiment, the power cord of the electromagnet passes through the connecting post 6, and the outer wall of the connecting post 6 is provided with a wire hole with a sealing ring, so that the electromagnet is electrically connected to the external power supply module through the power cord. In addition, in this embodiment, the electromagnet and the fixed plug 19 generate attraction and drive the sliding plug 16 to move to realize the water flow interruption of the two connecting pipes 4. The additional technical effects achieved are: simple structure, no need to accurately detect the water flow rate, and under normal circumstances, the water flow rate flowing into the two connecting pipes 4 from the distribution pipe 7 tends to be the same. Only under special circumstances may there be a large difference in the water flow rate of the two connecting pipes 4. Therefore, it is not necessary to set up costly sensors and other modules to achieve control. This embodiment can achieve the control purpose, so it achieves the purpose of cost reduction and efficiency improvement to a certain extent.

[0051] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0052] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A new energy vehicle drive motor with a water-cooled outer shell structure, comprising a drive motor housing (1), characterized in that, Also includes: Two water-cooled covers (3) are mounted on the periphery of the outer shell (1). A water flow channel (20) is provided inside the water-cooled cover (3). The outer wall of the water-cooled cover (3) is provided with a water inlet (11) and a drain outlet (2). The water inlet (11) and the drain outlet (2) are connected to the water flow channel (20). A connecting pipe (4) is connected to the inlet (11). The two connecting pipes (4) are connected to a distribution pipe (7) at the ends away from the inlet (11). A main water pipe (10) is fixed around the distribution pipe (7). The main water pipe (10) is connected to the inside of the distribution pipe (7).

2. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 1, characterized in that, Each end of the water-cooled cover (3) is fixed with an abutment part (12), and the abutment parts (12) at the ends of the two water-cooled covers (3) are connected by contact and can be detachably connected by multiple bolt pairs (5).

3. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 2, characterized in that, The outer contour of the water-cooled cover (3) is arc-shaped, and the abutting parts (12) of the two water-cooled covers (3) abut against each other to form a ring structure, and the outer shell (1) is installed inside the ring structure.

4. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 1, characterized in that, The water-cooled cover (3) is made of brass.

5. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 1, characterized in that, The length of the water-cooled cover (3) is not less than half the length of the outer shell (1).

6. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 1, characterized in that, The distribution pipe (7) has a connecting post (6) fixed at both ends of its periphery. The connecting post (6) has a cavity (18) inside. The cavity (18) is connected to the distribution pipe (7) and the connecting pipe (4). The cavity (18) has a connecting unit inside.

7. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 6, characterized in that, The communication unit includes a fixed plug (19) fixedly engaged and installed in the cavity (18). The end face of the fixed plug (19) is coaxially provided with a through hole (21). A sliding plug (16) is engaged and installed in the cavity (18). The sliding plug (16) slides freely in the cavity (18). The end face of the sliding plug (16) is provided with multiple communication grooves (22). The communication grooves (22) are staggered from the communication hole (21) so that when the end face of the fixed plug (19) and the end face of the sliding plug (16) abut against each other, the abutting surfaces of the two are sealed. An elastic element is also installed in the cavity (18). The elastic element elastically abuts against the sliding plug (16) in the direction of the fixed plug (19).

8. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 7, characterized in that, The elastic element includes a spring (17) installed in the cavity (18), and the two ends of the spring (17) elastically abut against the end face of the sliding plug (16) and the inner wall of the cavity (18) respectively.

9. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 7, characterized in that, The end face of the sliding plug (16) is fixedly provided with a drive rod (15), the drive rod (15) penetrates the distribution pipe (7) and slides freely, and the main water pipe (10) is provided with an adjustment component, which is used to drive the two drive rods (15) to move synchronously in opposite directions.

10. The new energy vehicle drive motor with a water-cooled outer shell structure according to claim 9, characterized in that, The adjustment assembly includes a rotating frame (9) sleeved on the main water pipe (10), the rotating frame (9) being rotatably connected to the periphery of the main water pipe (10), a swing arm (8) fixed at each end of the rotating frame (9), a sliding pin (14) passing through the end of the drive rod (15), an oblong hole (13) for the sliding pin (14) to be inserted into the outer wall of the rotating frame (9), an electromagnet embedded in the sliding plug (16), the electromagnet and the fixed plug (19) forming a magnetic engagement, a sensing block (24) fixed at each end of the outer wall of the distribution pipe (7), and a proximity switch (23) for cooperating with the sensing block (24) passing through the swing arm (8).

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