Controllerless compressor for all-electric vehicle

Abstract

This invention discloses a controllerless compressor for fully electric vehicles, comprising: a housing with a protrusion on the outer side of its rear end face; a motor housed within the housing; a motor lead terminal located within the protrusion and connected to the motor; a terminal block located on the outer wall of the protrusion, one end of which is connected to the motor lead terminal; and a terminal block located on the outer side of the protrusion, one end of which is connected to the other end of the terminal block. This invention eliminates the need for a compressor controller, thereby reducing manufacturing costs and minimizing electromagnetic interference between electrical components.

Description

Technical Field

[0001] This invention relates to the technical field of compressors, and more particularly to a controllerless compressor for fully electric vehicles. Background Technology

[0002] Currently, compressors used in new energy vehicles are integrated compressors that combine mechanical, electrical, hydraulic, and control systems. The compressor's operation is controlled through interaction between the vehicle's ECU and the compressor controller. With the development of new energy vehicle technology, controlling all electrical components through the main unit ECU will become a trend.

[0003] To ensure the designed compressor is modular and flexible for automotive applications, and under current technological conditions, it must not only achieve plug-and-play functionality but also further reduce the space occupied by the compressor. Simultaneously, the technical solution should also consider the versatility of compressor manufacturing to minimize the increase in manufacturing costs due to the emergence of new compressor models.

[0004] Currently, there are several types of compressors on the market. The first type consists of a front housing, middle housing, rear housing, high-voltage interface, low-voltage interface, and a controller located in the rear housing. This type of compressor is currently the mainstream model on the market. Because this type of compressor has its own controller, it can autonomously control the compressor after receiving commands from the car's ECU. However, the disadvantage of this approach is that the presence of the controller increases the cost of the compressor. Furthermore, to prevent electromagnetic interference between the compressor controller and the car's ECU, a significant development cost is required in the design of the compressor controller. In fact, the car's ECU itself has powerful functions. If the functions of the compressor controller are ported to the car's ECU, only some expansion development work is needed, without significantly increasing hardware costs. At the same time, it also eliminates electromagnetic interference between the compressor controller and the ECU.

[0005] The second type of compressor features radial openings in the middle casing near the front housing, above the motor. Terminals connecting the motor leads are led out of the casing and enclosed by a junction box. The required IP safety rating is achieved using sealant. However, due to the inherently large size of the terminals, the space between the motor and bearing support must be appropriately increased to allow for connection and installation of the motor leads and terminals without significantly increasing the radial dimension of the middle casing. This design increases the distance between the main and auxiliary bearings, lengthens the crankshaft, and ultimately leads to increased crankshaft deflection, decreased coaxiality, and compromised reliability. Furthermore, the location of the terminals and junction box on the compressor's middle casing increases the effective radial dimension, occupying a significant amount of installation space.

[0006] The third type of compressor, based on the existing structure, directly installs the power supply terminal on the back cover of the original controller. This solution has very little change from the existing design and is easy to obtain. However, it is obvious that the overall length of the machine has increased significantly due to the inherent length of the power supply terminal. In order to achieve a high IP rating for the connector while keeping the compressor specifications unchanged, it is necessary to add 73mm to the length of the back cover. This makes it difficult to meet the customer's requirements for the total length of the compressor. Summary of the Invention

[0007] In view of the above-mentioned problems of existing compressors, the present invention aims to provide a controllerless compressor for all electric vehicles, which can eliminate the need for a compressor controller, thereby reducing manufacturing costs and reducing electromagnetic interference between electrical components.

[0008] The specific technical solution is as follows:

[0009] A controllerless compressor for fully electric vehicles, comprising:

[0010] The housing has a convex bulge on the outer side of its rear end face;

[0011] An electric motor, which is disposed within the housing;

[0012] Motor lead terminal, the motor lead terminal is disposed inside the protrusion, and the motor lead terminal is connected to the motor;

[0013] A terminal block is provided on the outer wall of the convex bulge, and one end of the terminal block is connected to the motor lead wire terminal.

[0014] A terminal block is provided on the outside of the convex bulge, and one end of the terminal block is connected to the other end of the terminal post.

[0015] In the aforementioned controllerless compressor for fully electric vehicles, the orientation of the wiring terminals is perpendicular to the axial direction of the housing, and the central axis of the wiring terminals is coaxial with the central axis of the terminal block.

[0016] The aforementioned controllerless compressor for all electric vehicles further includes: a connector located on the outer periphery of the rear end of the housing, the connector being connected to the other end of the wiring terminal.

[0017] In the aforementioned controllerless compressor for fully electric vehicles, the bulge is integrally formed with the housing.

[0018] The aforementioned controllerless compressor for all electric vehicles includes a housing comprising a front housing, a middle housing, and a rear housing that are fixedly connected in sequence. The convex bulge is located on the outer side of the rear end face of the rear housing, and the terminal block and the wiring post are both located on the outer peripheral wall of the rear end of the rear housing.

[0019] The aforementioned controllerless compressor for all electric vehicles has an island on the outer side of the rear end of the housing, and the island has an opening.

[0020] In the aforementioned controllerless fully electric vehicle compressor, the connector is located on the island superstructure, and the orientation of the connector is parallel to the axial direction of the housing.

[0021] The aforementioned controllerless all-electric vehicle compressor further includes a cover plate that covers the opening on the island superstructure.

[0022] The aforementioned controllerless all-electric vehicle compressor further includes: a housing, the housing being fixedly connected to the island superstructure, the housing being located on the opening of the island superstructure, and a connector being disposed on the housing, the connector being oriented perpendicular to the axial direction of the housing.

[0023] In the aforementioned controllerless compressor for fully electric vehicles, the central axis of the connector is coaxial with the central axis of the terminal block.

[0024] The positive effects of the above technical solution compared with the existing technology are:

[0025] This invention can eliminate the need for a compressor controller, thereby reducing manufacturing costs and electromagnetic interference between electrical components. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a controllerless compressor for all electric vehicles according to the present invention;

[0027] Figure 2 This invention relates to a controllerless compressor for fully electric vehicles. Figure 1 Enlarged view of a portion of the image;

[0028] Figure 3 This is a schematic diagram of the rear housing of a controllerless compressor for fully electric vehicles according to the present invention.

[0029] Figure 4 This invention relates to a controllerless compressor for fully electric vehicles. Figure 3 A cross-sectional view along the AA direction;

[0030] Figure 5 This invention relates to a controllerless compressor for fully electric vehicles. Figure 1 Enlarged view of a portion of the image;

[0031] Figure 6 This invention relates to a controllerless compressor for fully electric vehicles. Figure 5 Schematic diagram of the structure in the C-direction;

[0032] Figure 7 This invention relates to a controllerless compressor for fully electric vehicles. Figure 6 Cross-sectional view along the BB direction;

[0033] Figure 8 This is a schematic diagram of the overall structure of a second embodiment of a controllerless compressor for all electric vehicles according to the present invention;

[0034] In the attached diagram: 1. Housing; 2. Connecting wire; 3. Motor lead wire terminal; 4. Terminal block; 5. Terminal block; 6. Protrusion; 7. Connector; 8. Island; 9. Opening; 10. Housing; 11. Front shell; 12. Middle shell; 13. Rear shell; 14. Cover plate; 15. O-ring; 16. Bracket. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0036] First embodiment:

[0037] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a controllerless compressor for fully electric vehicles according to the present invention. Figure 2 This invention relates to a controllerless compressor for fully electric vehicles. Figure 1 Enlarged view of a portion of the image. Figure 3 This is a schematic diagram of the rear housing of a controllerless compressor for fully electric vehicles according to the present invention. Figure 4 This invention relates to a controllerless compressor for fully electric vehicles. Figure 3 Cross-sectional view along the AA direction. Figure 5 This invention relates to a controllerless compressor for fully electric vehicles. Figure 1 Enlarged view of a portion of the image. Figure 6 This invention relates to a controllerless compressor for fully electric vehicles. Figure 5 A schematic diagram of the structure in the C-direction. Figure 7 This invention relates to a controllerless compressor for fully electric vehicles. Figure 6 A cross-sectional view along the BB direction, such as Figures 1 to 7The figure shows a preferred embodiment of a controllerless compressor for fully electric vehicles, including: a housing 1, a motor (not shown), a motor lead terminal 3, a terminal block 4, and a terminal block 5. A protrusion 6 is provided on the outer side of the rear end face of the housing 1. The motor is located inside the housing 1. The motor lead terminal 3 is located inside the protrusion 6 and is connected to the motor. The terminal block 4 is located on the outer wall of the protrusion 6. One end of the terminal block 4 is connected to the motor lead terminal 3. The terminal block 5 is located on the outer side of the protrusion 6, and one end of the terminal block 5 is connected to the other end of the terminal block 4.

[0038] Furthermore, as a preferred embodiment, the orientation of the terminal block 5 is perpendicular to the axial direction of the housing 1, and the central axis of the terminal block 5 is coaxially arranged with the central axis of the terminal post 4.

[0039] Furthermore, as a preferred embodiment, the controllerless compressor for all electric vehicles also includes a connector 7, which is located on the outer periphery of the rear end of the housing 1, and is connected to the other end of the terminal block 5 via a connecting wire 2.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0041] In addition to the above, the present invention also has the following embodiments:

[0042] In further embodiments of the present invention, please continue to refer to Figures 1 to 7 As shown, the convex bulge 6 is integrally formed with the shell 1.

[0043] In a further embodiment of the present invention, the housing 1 includes a front housing 11, a middle housing 12 and a rear housing 13 that are fixedly connected in sequence, a protrusion 6 is provided on the outer side of the rear end face of the rear housing 13, and the terminal block 4 and the terminal 5 are both provided on the outer peripheral wall of the rear end of the rear housing 13.

[0044] In a further embodiment of the present invention, an island 8 is provided on the outer side of the rear end of the housing 1, and the island 8 has an opening 9.

[0045] In a further embodiment of the present invention, the connector 7 is disposed on the island 8, and the orientation of the connector 7 is parallel to the axial direction of the housing 1.

[0046] In a further embodiment of the present invention, the controllerless all-electric vehicle compressor further includes: a cover plate 14, which covers the opening 9 of the island 8.

[0047] Preferably, an O-ring 15 is provided between the terminal 4 and the protrusion 6.

[0048] Preferably, a bracket 16 is provided between the terminal block 4 and the motor lead wire terminal 3.

[0049] The island structure 8 of this invention protrudes from the rear housing 13 by a certain distance and is formed on the side wall of the rear housing 13. Simultaneously, this island structure 8 has an opening 9 at a certain angle to the compressor axis to facilitate the connection between the flag-shaped terminal and the sealed terminal block 4. This design maintains the outlet direction of the connector 7 parallel to the axial direction of the compressor. Furthermore, because this island structure is located on one side of the compressor axis and is positioned as close as possible to the outer circumference of the rear housing 13, while also utilizing a portion of the height of the rear housing 13 itself, the compressor structure is made as compact as possible. As can be seen from the figure, the compressor only experiences an increase of approximately 25mm in a localized area, and since this structure is located on one side of the compressor, it does not affect the effective axial and radial dimensions of the compressor, resulting in a significant optimization of the product size.

[0050] The present invention has an exceptionally compact structure, which can achieve a high IP rating seal without increasing the effective size of the structure.

[0051] The connector 7 of this invention adopts a radial straight-out form, which enriches the application requirements.

[0052] Second embodiment:

[0053] Figure 8 This is a schematic diagram of the overall structure of a second embodiment of a controllerless compressor for all-electric vehicles according to the present invention, as shown below. Figure 8 As shown, the main structure of this embodiment is largely the same as that of the first embodiment, except that the controllerless electric vehicle compressor further includes a housing 10, which is fixedly connected to the island 8. The housing 10 is located on the opening 9 of the island 8, and the connector 7 is provided on the housing 10. The orientation of the connector 7 is perpendicular to the axis of the housing 1.

[0054] In a further embodiment of the present invention, the central axis of the connector 7 is coaxial with the central axis of the terminal block 5.

[0055] The present invention provides a square box 10, which can also be a mounting box having an inclined mounting plane with respect to the axial direction.

[0056] The connection scheme between the rear shell 13 and the middle shell 12 of this invention ensures the effectiveness of the original manufacturing process. Simultaneously, a structure resembling an island superstructure on a ship is designed on the new rear shell 13 to facilitate the installation of the power supply terminal. This island superstructure 8 is located on one side of the compressor shaft, near the maximum radial outer circle, and protrudes beyond the maximum outer circle of the compressor rear cover plate 14 and the middle shell 12. This design, because it does not occupy the original design space of the compressor, eliminates the need for additional lifespan reviews and changes to any assembly process. Furthermore, it effectively reduces the axial space occupied without altering the effective radial dimension of the compressor.

[0057] This invention designs a high-voltage interface on the island 8 that is parallel to or perpendicular to the compressor axis, which facilitates customer use and also meets customer requirements for space layout.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A controllerless compressor for fully electric vehicles, characterized in that, include: The housing has a convex bulge on the outer side of its rear end face; An electric motor, which is disposed within the housing; Motor lead terminal, the motor lead terminal is disposed inside the protrusion, and the motor lead terminal is connected to the motor; A terminal block is provided on the outer wall of the convex bulge, and one end of the terminal block is connected to the motor lead wire terminal. A terminal block is provided on the outside of the convex bulge, and one end of the terminal block is connected to the other end of the terminal post; An island is provided on the outer side of the rear end of the housing. The island protrudes from the side wall of the rear end of the housing. The island has an opening, and the direction of the compressor axis forms an angle with the direction of the opening. The orientation of the terminal block is perpendicular to the axial direction of the housing, and the central axis of the terminal block is coaxial with the central axis of the post. The convex bulge is integrally formed with the shell. The housing includes a front shell, a middle shell, and a rear shell that are fixedly connected in sequence. The convex bulge is located on the outer side of the rear end face of the rear shell, and the terminal block and the wiring post are both located on the outer peripheral wall of the rear end of the rear shell.

2. The controllerless compressor for all electric vehicles according to claim 1, characterized in that, Also includes: A connector is located on the outer periphery of the rear end of the housing and is connected to the other end of the terminal block.

3. The controllerless compressor for all electric vehicles according to claim 2, characterized in that, The connector is located on the island superstructure, and the orientation of the connector is parallel to the axial direction of the hull.

4. The controllerless compressor for all electric vehicles according to claim 3, characterized in that, Also includes: A cover plate is provided over the opening of the island superstructure.

5. The controllerless compressor for all electric vehicles according to claim 4, characterized in that, Also includes: The housing is fixedly connected to the island superstructure and is located on the opening of the island superstructure. The connector is disposed on the housing and the orientation of the connector is perpendicular to the axis of the housing.

6. The controllerless compressor for all electric vehicles according to claim 5, characterized in that, The central axis of the connector is coaxial with the central axis of the terminal block.

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