Electric drive system and vehicle
By integrating the oil cooler into the controller and directly connecting to the cooling medium import, the problems of overlong and aging of the pipes in the cooling device of the automobile motor are solved, reducing power consumption and cost, improving reliability and heat dissipation effect.
Patent Information
- Application Number
- CN202421114509.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-21
AI Technical Summary
In the existing automotive motor cooling devices, the oil cooler's pipeline is too long and the flow resistance is large, resulting in increased power consumption of the whole vehicle's water pump, complex structure and high cost, and aging of the pipeline is likely to cause coolant to leak liquid.
The oil cooler is integrated into the controller, and the cooling medium inlet is directly connected to the channel port, eliminating traditional pipelines, and sealing and fixing are used to seal and fix, simplifying the coolant circuit.
It reduces the power consumption and cost of the electric drive system, improves the reliability of the cooling part, avoids coolant leakage caused by pipe aging, simplifies the structure and improves the heat dissipation effect.
Smart Images
Figure CN222356152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, and in particular to an electric drive system and a vehicle. Background Art
[0002] In the current cooling device of automobile motors, an oil cooler is generally provided to cool the stator, rotor and controller. Currently, most oil coolers are arranged on the motor housing and connected to the cooling channel in the controller through pipes. In this structural form, the coolant flow route is too long, the flow resistance is large, the power consumption of the vehicle water pump is increased, and the installation of pipes on the motor or the direct machining of pipes on the motor housing will lead to complex structure and high cost. In addition, external pipes or additional machining coolant paths will cause the cooling water pipes to age easily with the increase of service time, and coolant leakage may occur. Utility Model Content
[0003] The main purpose of the utility model is to provide an electric drive system and a vehicle, aiming to reduce the power consumption and cost of the existing automobile motor cooling part and improve the reliability of the cooling part.
[0004] To achieve the above-mentioned purpose, the electric drive system proposed in the utility model includes a controller, the controller has a cooling channel and a channel opening connected to the cooling channel; an oil cooler, the oil cooler has a cooling medium inlet, the oil cooler is integrated on the controller and the cooling medium inlet is directly connected to the channel opening.
[0005] In one embodiment, the controller is provided with a boss arranged around the passage opening, the boss extends toward the oil cooler, and the boss is sealingly matched with the periphery of the cooling medium inlet.
[0006] In one embodiment, the electric drive system further comprises a sealing ring, and the boss is sealingly matched with the periphery of the cooling medium inlet through the sealing ring.
[0007] In one embodiment, the boss has a limiting structure, and the limiting structure limits the sealing ring.
[0008] In one embodiment, the limiting structure is configured as a limiting groove provided on the side of the boss facing the oil cooler, the channel opening is provided in the limiting groove, and the bottom wall of the limiting groove and the periphery of the cooling medium inlet cooperate to clamp the sealing ring.
[0009] In one embodiment, the electric drive system further includes a fixing structure, and the oil cooler is fixed to the controller via the fixing structure.
[0010] In one embodiment, the fixing structure comprises:
[0011] A fixing hole, provided on the oil cooler;
[0012] A fixed body, protrudingly disposed on an end surface of the controller facing the oil cooler;
[0013] A fixing member passes through the fixing hole and cooperates with the fixing body to fix the oil cooler on the controller.
[0014] In one embodiment, the fixing body is configured as a threaded column, the fixing member is configured as a bolt, and the bolt is screwed and fixed to the threaded column.
[0015] In one embodiment, a plurality of the fixing structures are provided, and the plurality of the fixing structures are spaced apart along the circumference of the boss.
[0016] The utility model also provides a vehicle, comprising the electric drive system mentioned above.
[0017] Compared with the prior art, in the technical solution of the utility model, the electric drive system includes a controller, a cooling channel is provided on the controller, a cooling medium flows in the cooling channel to cool the controller, and a channel opening is also provided on the controller, and the channel hole is connected to the cooling channel; the electric drive system also includes an oil cooler, a cooling medium inlet is provided on the oil cooler, the oil cooler is integrated on the controller, and the channel opening of the cooling channel is directly connected to the cooling medium inlet, so that the traditional pipeline can be omitted, the cost is reduced, and the entire coolant circuit is shortened, the coolant flow resistance is reduced, and the low-voltage power consumption of the whole vehicle can be saved. In addition, the number of components is reduced, and coolant leakage caused by pipeline aging can be prevented, thereby improving the reliability of the use of the electric drive system. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 A schematic structural diagram of an embodiment of an electric drive system provided by the utility model;
[0020] Figure 2 Another structural schematic diagram of an embodiment of the electric drive system provided by the utility model;
[0021] Figure 3 A cross-sectional schematic diagram of an embodiment of an electric drive system provided by the utility model;
[0022] Figure 4 This is a schematic structural diagram of a sealing ring in an embodiment of an electric drive system provided by the utility model.
[0023] Description of Figure Numbers:
[0024] 100, controller; 110, boss; 200, oil cooler; 300, sealing ring; 400, connection structure.
[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0029] In the current motor cooling system, the oil cooler 200 is generally fixed on the motor housing and connected to the cooling channel on the controller 100 through a pipeline. This structure is complex and costly. As the years of use increase, the pipeline is prone to aging and leakage, affecting the normal operation of the motor.
[0030] To this end, the technical solution of the utility model proposes an electric drive system, which includes a controller 100, and the controller 100 has a cooling channel and a channel port communicating with the cooling channel;
[0031] The oil cooler 200 has a cooling medium inlet. The oil cooler 200 is integrated on the controller 100 and the cooling medium inlet is directly connected to the channel opening.
[0032] Compared with the prior art, in the technical solution of the utility model, the electric drive system is applied to the electric drive system, the electric drive system includes a controller 100, the controller 100 is provided with a cooling channel, a cooling medium flows in the cooling channel to cool the controller 100, the controller 100 is also provided with a channel opening, the channel hole is connected with the cooling channel; the electric drive system includes an oil cooler 200, the oil cooler 200 is provided with a cooling medium inlet, the oil cooler 200 is integrated with the controller 100, and the channel opening of the cooling channel is directly connected with the cooling medium inlet, so that the traditional pipeline can be omitted, the cost is reduced, and the entire coolant circuit is shortened, the coolant flow resistance is reduced, and the low-voltage power consumption of the whole vehicle can be saved. In addition, the number of components is reduced, and the coolant leakage caused by pipeline aging can be prevented, thereby improving the reliability of the use of the electric drive system.
[0033] like Figures 1 to 4 In one embodiment of the utility model, the electric drive system is applied to the electric drive system, and the electric drive system includes components such as a motor and a controller 100, wherein a cooling channel is provided on the controller 100, and a cooling medium such as a coolant flows through the cooling channel to cool the controller 100, and the cooling channel has a channel opening for the cooling medium to flow out of the cooling channel, and the electric drive system also includes an oil cooler 200, and the oil cooler 200 is provided with a cooling medium inlet, and the cooling medium inlet is directly connected to the channel opening of the cooling channel through a connector, and the cooling medium cools the controller 100. After heating, the cooling medium flows out from the channel port and directly flows into the oil cooler 200 to continue cooling other components. In this way, the pipeline connecting the oil cooler 200 and the cooling channel can be omitted, which can reduce the structural complexity of the electric drive system and reduce the cost. In addition, the layout in this embodiment does not need to consider the aging and leakage problems of the pipeline, which is equivalent to improving the reliability of the use of the electric drive system. In addition, in this solution, the oil cooler 200 can be integrated with the controller 100, and the two can share a shell or be assembled together, which also facilitates the installation of the electric drive system on the vehicle body.
[0034] like Figure 3In one embodiment of the utility model, the controller 100 is provided with a boss 110 arranged around the passage opening, the boss 110 extends toward the oil cooler 200, and the boss 110 is sealed with the periphery of the cooling medium inlet. In this embodiment, the oil cooler 200 and the controller 100 can be arranged at intervals, and the boss 110 structure is arranged on the controller 100, and the passage opening is arranged on the boss 110. The boss 110 and the periphery of the cooling medium inlet are sealed with each other by bonding or the like to prevent leakage of the cooling medium. By setting the boss 110 structure, the assembly of the controller 100 and the oil cooler 200 is facilitated, and the controller 100 and the oil cooler 200 do not need to be specially provided with mutually matching profiles for assembly. The controller 100 can also be arranged at intervals with the oil cooler 200 to improve the heat dissipation effect of the oil cooler 200 and the controller 100. In addition, there may be oil vapor or oil mist near the oil cooler 200, and these oil particles may enter the interior of the controller 100 and cause pollution. Keeping a certain interval can reduce the risk of such cross contamination.
[0035] like Figure 3 and Figure 4 In one embodiment of the utility model, the electric drive system further includes a sealing ring 300, and the boss 110 and the periphery of the cooling medium inlet are sealed by the sealing ring 300. The sealing ring 300 can be a conventional end face sealing ring 300 on the market. The end face of the boss 110 facing the oil cooler 200 is matched with the periphery of the cooling medium inlet to clamp the sealing ring 300 to achieve the sealing match between the channel opening and the cooling medium inlet. The use of the sealing ring 300 can facilitate the sealing between the cooling medium inlet and the channel opening, and facilitate the assembly between the oil cooler 200 and the controller 100.
[0036] In one embodiment of the utility model, the boss 110 has a limiting structure, and the limiting structure limits the sealing ring 300. In order to ensure the stability of the position of the sealing ring 300 after assembly, the boss 110 is also provided with a limiting structure, and the limiting structure can be a protrusion or a groove provided on the boss 110, and the sealing ring 300 can be provided with a groove or a protrusion that cooperates therewith. The sealing ring 300 cooperates with the limiting structure, so that the position of the sealing ring 300 on the boss 110 remains fixed, and the sealing performance between the channel port and the cooling medium inlet is ensured.
[0037] In one embodiment of the utility model, the limiting structure is configured as a limiting groove provided on the side of the boss 110 facing the oil cooler 200, the passage opening is provided in the limiting groove, and the bottom wall of the limiting groove and the periphery of the cooling medium inlet cooperate to clamp the sealing ring 300. The limiting groove is coaxially arranged with the passage opening, and the passage opening is arranged at the groove bottom of the limiting groove. The sealing ring 300 is embedded in the limiting groove and cooperates with the inner wall of the limiting groove. When the controller 100 and the oil cooler 200 are assembled, the inner wall of the limiting groove cooperates with the periphery of the cooling medium inlet to clamp the sealing ring 300, and the sealing ring 300 can fill the gap between the passage opening and the cooling medium inlet, thereby achieving sealing.
[0038] like Figure 2 In one embodiment of the utility model, the electric drive system further includes a fixing structure 400, and the controller 100 and the oil cooler 200 are fixed by the fixing structure 400. The fixing structure 400 may be a buckle or a rivet, and the controller 100 and the oil cooler 200 may be connected by a snap connection or a riveting connection, which facilitates the assembly between the controller 100 and the oil cooler 200. In addition, the fixing structure 400 may ensure the stability of the sealing cooperation between the sealing ring 300 and the controller 100 and the oil cooler 200, thereby ensuring the sealing performance.
[0039] In one embodiment of the present invention, the fixing structure 400 includes:
[0040] A fixing hole, provided on the oil cooler 200;
[0041] A fixed body, convexly disposed on one end surface of the controller 100 facing the oil cooler 200;
[0042] The fixing piece passes through the fixing hole and cooperates with the fixing body to fix the oil cooler on the controller.
[0043] Among them, the fixing hole opened on the oil cooler 200 is a through hole, and the fixing body can be a snap-on structure set on the controller 100. The fixing piece can pass through the fixing hole and be snap-connected and fixed with the fixing body. This can facilitate the assembly of the oil cooler 300 and the controller 100, and also facilitate subsequent maintenance. In this embodiment, the fixing body is configured as a threaded column, and the fixing piece is configured as a bolt, and the bolt is screwed and fixed to the threaded column; in this solution, the fixing body can be a threaded column structure integrally formed with the controller 100, and the fixing piece can be a bolt, and the fixing body can be threadedly connected to the fixing piece. The fixing structure 400 in this embodiment can facilitate the assembly of the oil cooler 300 and the controller 100 while ensuring the connection strength between the oil cooler 300 and the controller 100, thereby improving the reliability of the use of the electric drive system.
[0044] like Figure 2In one embodiment of the utility model, a plurality of fixing structures 400 are provided, and the plurality of fixing structures 400 are arranged at intervals along the circumference of the boss 110. This arrangement makes the pressure on the sealing ring 300 more uniform, avoiding damage or deformation of the sealing ring 300 due to excessive pressure of a single fixing structure 400, and through the plurality of fixing structures 400, the compression of the sealing ring 300 can be more tightly controlled, thereby improving the overall sealing effect and preventing leakage. In addition, the plurality of fixing structures 400 can enhance the stability of the connection, making the structure more solid and able to withstand greater force and vibration.
[0045] The utility model also proposes a vehicle, which includes a vehicle body and an electric drive system arranged on the vehicle body. The specific structure of the electric drive system refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0046] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An electric drive system, characterized in that: include: A controller having a cooling channel and a channel opening communicating with the cooling channel; The oil cooler has a cooling medium inlet, the oil cooler is integrated on the controller and the cooling medium inlet is directly connected to the channel opening.
2. The electric drive system according to claim 1, characterized in that: The controller is provided with a boss arranged around the passage opening, the boss extends toward the oil cooler, and the boss is sealed and matched with the periphery of the cooling medium inlet.
3. The electric drive system according to claim 2, characterized in that: The electric drive system further comprises a sealing ring, through which the boss and the periphery of the cooling medium inlet are sealed and matched.
4. The electric drive system according to claim 3, characterized in that: The boss has a limiting structure, and the limiting structure limits the sealing ring.
5. The electric drive system according to claim 4, characterized in that: The limiting structure is configured as a limiting groove provided on the side of the boss facing the oil cooler, the passage opening is provided in the limiting groove, and the bottom wall of the limiting groove and the periphery of the cooling medium inlet cooperate to clamp the sealing ring.
6. The electric drive system according to claim 3, characterized in that: The electric drive system further includes a fixing structure, and the oil cooler is fixed to the controller via the fixing structure.
7. The electric drive system according to claim 6, characterized in that: The fixed structure comprises: A fixing hole, provided on the oil cooler; A fixed body, protrudingly disposed on an end surface of the controller facing the oil cooler; A fixing member passes through the fixing hole and cooperates with the fixing body to fix the oil cooler on the controller.
8. The electric drive system according to claim 7, characterized in that: The fixing body is configured as a threaded column, and the fixing member is configured as a bolt, and the bolt is screwed and fixed to the threaded column.
9. The electric drive system according to claim 6, characterized in that: There are a plurality of fixing structures, and the plurality of fixing structures are arranged at intervals along the circumference of the boss.
10. A vehicle, characterized in that: An electric drive system comprising any one of claims 1 to 9.