Split control electric compressor structure

Abstract

The utility model relates to electric compressor technical field, concretely relates to a split control electric compressor structure, including motor shell, motor stator, motor rotor, motor shaft, moving disc, static disc, end cover, small cover and high pressure connector, only heat -sealing assembly motor stator and motor rotor in motor shell, power transmission to the compression mechanism that constitutes by eccentric block, moving disc, static disc through motor shaft, and realize the stable support of motor shaft through bearing seat and motor shell bearing, simultaneously, the wiring end of high pressure connector is connected with motor stator through three -phase binding post in small cover, and this interface is only electric energy transmission channel, and not controller installation base, therefore, in the technical scheme, by removing the controller from the motor shell, the high temperature of compressor motor and pump body work is cut off, and the heat conduction path to the controller, solve the controller performance decline and reliability problem caused by overheating in integrated design.

Description

Technical Field

[0001] This utility model relates to the field of electric compressor technology, and in particular to a split-type control electric compressor structure. Background Technology

[0002] Traditional electric scroll compressors for new energy electric vehicles generally adopt an integrated controller design, which means that the core motor component (i.e., the inverter) that controls the operation of the compressor motor, as well as its heat dissipation and protection housing, are directly and physically mounted on the main housing of the compressor, forming an inseparable and compact powertrain unit.

[0003] However, electric scroll compressors with integrated controllers tend to generate a lot of heat in the compressor motor and pump body during actual applications, especially the pump body, which is too hot and seriously affects the controller's tolerance and performance. Summary of the Invention

[0004] The purpose of this invention is to provide a split-type control electric compressor structure to solve the problem that electric scroll compressors with integrated controllers, in practical applications, cause excessive heat generation in the compressor motor and pump body, especially excessively high temperature at the pump body end, which seriously affects the controller's tolerance and performance.

[0005] To achieve the above objectives, this utility model provides a split-type control electric compressor structure. The split-type control electric compressor structure includes a motor housing, a motor stator, a motor rotor, a motor shaft, a moving plate, a stationary plate, an end cover, a small cover plate, and a high-voltage connector. The motor stator is thermally assembled inside the motor housing, and the motor rotor is fitted inside the motor stator. One end of the motor housing is provided with the end cover, and the other end of the motor housing is provided with the small cover plate. A motor housing bearing is located at the center of the end of the motor housing near the small cover plate. A bearing seat is located at the end of the motor housing near the end cover, and a bearing seat bearing is located inside the bearing seat. The motor shaft is assembled inside the motor rotor, with one end of the motor shaft embedded in the motor housing bearing and the other end embedded in the bearing seat bearing. The stationary disc is mounted on the side of the bearing housing away from the motor stator. The side of the stationary disc away from the bearing housing is connected to the end cover. An eccentric block is mounted on the end of the motor shaft away from the motor housing bearing. The moving disc is provided on the end of the eccentric block away from the motor shaft. The moving disc matches the stationary disc. The high-voltage connector is also installed on the outside of the motor housing. The wiring terminals of the high-voltage connector are located inside the small cover plate. A three-terminal terminal is also provided at the end of the motor housing away from the end cover. One end of the three-terminal terminal is located inside the small cover plate and corresponds to the wiring terminals of the high-voltage connector. The other end of the three-terminal terminal is connected to the motor stator.

[0006] The three terminals are provided with protective sleeves, and a three-phase socket sealing ring is provided at the connection between the protective sleeves and the motor housing.

[0007] A small end cap sealing gasket is provided at the connection between the small cover plate and the end of the motor housing.

[0008] The bearing housing has a wear-resistant pad on the side away from the motor stator, and the stationary disc is fastened to the end face of the wear-resistant pad.

[0009] The stationary disc has a first positioning hole on the side near the bearing housing and on the wear-resistant pad, and a second positioning hole is provided on the side of the stationary disc away from the bearing housing.

[0010] This utility model discloses a split-type control electric compressor structure, including a motor housing, a motor stator, a motor rotor, a motor shaft, a moving plate, a stationary plate, an end cover, a small cover plate, and a high-voltage connector. Only the motor stator and motor rotor are thermally assembled within the motor housing. Power is transmitted via the motor shaft to the compression mechanism composed of the eccentric block, the moving plate, and the stationary plate. Stable support for the motor shaft is achieved through the bearing seats and bearings in the motor housing. Simultaneously, the wiring terminals of the high-voltage connector are connected to the motor stator via the three-phase terminals within the small cover plate. This interface is solely for power transmission and not a controller mounting base. Therefore, by completely removing the controller from the motor housing, this technical solution fundamentally cuts off the heat conduction path from the high temperatures of the compressor motor and pump body during operation to the controller, allowing the controller to operate stably in an independent, low-temperature environment. This completely solves the problem of controller performance degradation and reliability issues caused by overheating in integrated designs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1This is a cross-sectional structural diagram of the split-type control electric compressor structure provided by this utility model.

[0013] Figure 2 This utility model provides Figure 1 A magnified view of the local structure at point A.

[0014] Figure 3 This utility model provides Figure 1 A magnified view of the local structure at point B.

[0015] Figure 4 This is a schematic diagram of the disassembled structure of the stationary disc and bearing housing provided by this utility model.

[0016] 101-Motor housing, 102-Motor stator, 103-Motor rotor, 104-Motor shaft, 105-Moving disc, 106-Stationary disc, 107-End cover, 108-Small cover plate, 109-High voltage connector, 110-Motor housing bearing, 111-Bearing housing, 112-Bearing housing bearing, 113-Eccentric block, 114-Three-phase terminal block, 115-Sheath, 116-Three-phase seat seal ring, 117-Small end cover gasket, 118-Wear-resistant pad, 119-First positioning hole, 120-Second positioning hole. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1 to 4This utility model provides a split-type controlled electric compressor structure, which includes a motor housing 101, a motor stator 102, a motor rotor 103, a motor shaft 104, a moving plate 105, a stationary plate 106, an end cover 107, a small cover plate 108, and a high-voltage connector 109. The motor stator 102 is thermally sealed inside the motor housing 101, and the motor rotor 103 is mounted inside the motor stator 102. The end cover 107 is provided at one end of the motor housing 101, and the other end of the motor housing 101... The motor housing 101 is provided with the small cover plate 108. A motor housing bearing 110 is provided at the center of one end of the motor housing 101 near the small cover plate 108. A bearing seat 111 is provided at one end of the motor housing 101 near the end cover 107. A bearing seat bearing 112 is provided inside the bearing seat 111. The motor shaft 104 is assembled inside the motor rotor 103. One end of the motor shaft 104 is embedded inside the motor housing bearing 110, and the other end of the motor shaft 104 is embedded inside the bearing seat bearing 112. The stationary disc 106 is mounted on the side of the bearing housing 111 away from the motor stator 102. The side of the stationary disc 106 away from the bearing housing 111 is connected to the end cover 107. An eccentric block 113 is mounted on one end of the motor shaft 104 away from the motor housing bearing 110. The moving disc 105 is provided on one end of the eccentric block 113 away from the motor shaft 104. The moving disc 105 matches the stationary disc 106. The high-voltage connector 109 is also installed on the outside of the motor housing 101. The wiring terminals of the high-voltage connector 109 are located inside the small cover plate 108. A three-terminal terminal 114 is also provided at the end of the motor housing 101 away from the end cover 107. One end of the three-terminal terminal 114 is located inside the small cover plate 108 and corresponds to the wiring terminal of the high-voltage connector 109. The other end of the three-terminal terminal 114 is connected to the motor stator 102.

[0019] In this embodiment, only the motor stator 102 and the motor rotor 103 are thermally assembled inside the motor housing 101. Power is transmitted via the motor shaft 104 to the compression mechanism composed of the eccentric block 113, the moving disk 105, and the stationary disk 106. The motor shaft 104 is stably supported by the bearing seat 111 and the bearing 110 of the motor housing. At the same time, the wiring terminal of the high-voltage connector 109 is connected to the motor stator 102 through the three-phase terminals inside the small cover plate 108. This interface is only a power transmission channel and not a controller mounting base. Therefore, by completely removing the controller from the motor housing 101, the heat conduction path from the high temperature of the compressor motor and pump body during operation is fundamentally cut off to the controller, allowing the controller to work stably in an independent, low-temperature environment. This completely solves the problem of controller performance degradation and reliability caused by overheating in integrated designs.

[0020] Furthermore, a protective sleeve 115 is provided on the outside of the three terminals 114, and a three-phase seat sealing ring 116 is provided at the connection between the protective sleeve 115 and the motor housing 101.

[0021] In this embodiment, the sheath 115 added to the outside of the three terminals 114 and the three-phase seat sealing ring 116 provided at the connection between the three terminals and the motor housing 101 form a double sealing barrier, effectively isolating the intrusion of external moisture, dust and oil, ensuring the insulation safety and long-term reliability of the high-voltage electrical connection parts, thereby ensuring the sealing protection level of the compressor body under harsh operating conditions while realizing the split layout of the controller.

[0022] Furthermore, a small end cap sealing gasket 117 is provided at the connection between the small cover plate 108 and the end of the motor housing 101.

[0023] In this embodiment, the high-voltage electrical cavity is effectively sealed by the small end cap sealing gasket 117, preventing external contaminants from entering and internal lubricating medium from leaking, ensuring the long-term working reliability of the three-phase terminals and the high-voltage connector 109 interface, and structurally enhancing the environmental adaptability advantages brought by the split design.

[0024] Furthermore, a wear-resistant pad 118 is provided on the side of the bearing housing 111 away from the motor stator 102, and the stationary disc 106 is fastened to the end face of the wear-resistant pad 118.

[0025] In this embodiment, the wear-resistant pad 118 effectively reduces wear and vibration noise under high-speed operation, improves the meshing accuracy and long-term operational stability of the moving and stationary discs 106, and enhances the mechanical reliability of the split compressor under the influence of heat dissipation without a controller from a structural perspective.

[0026] Furthermore, the stationary disc 106 is provided with a first positioning hole 119 on the side near the bearing seat 111 and on the wear-resistant pad 118, and the stationary disc 106 is provided with a second positioning hole 120 on the side away from the bearing seat 111.

[0027] In this embodiment, the installation of the stationary plate 106 is facilitated by the provision of the first positioning hole 119 and the second positioning hole 120, in cooperation with the positioning pin.

[0028] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A split-type controlled electric compressor structure, characterized in that, The device includes a motor housing, a motor stator, a motor rotor, a motor shaft, a moving disc, a stationary disc, an end cover, a small cover plate, and a high-voltage connector. The motor stator is thermally assembled inside the motor housing, and the motor rotor is fitted inside the motor stator. One end of the motor housing is provided with the end cover, and the other end of the motor housing is provided with the small cover plate. A motor housing bearing is provided at the center of the motor housing near the end of the small cover plate. A bearing seat is provided inside the motor housing near the end cover. A bearing seat bearing is provided inside the bearing seat. The motor shaft is assembled inside the motor rotor. One end of the motor shaft is embedded inside the motor housing bearing, and the other end of the motor shaft is embedded inside the bearing seat bearing. The stationary disc is mounted on the side of the bearing housing away from the motor stator. The side of the stationary disc away from the bearing housing is connected to the end cover. An eccentric block is mounted on the end of the motor shaft away from the motor housing bearing. The moving disc is provided on the end of the eccentric block away from the motor shaft. The moving disc matches the stationary disc. The high-voltage connector is also installed on the outside of the motor housing. The wiring terminals of the high-voltage connector are located inside the small cover plate. A three-terminal terminal is also provided at the end of the motor housing away from the end cover. One end of the three-terminal terminal is located inside the small cover plate and corresponds to the wiring terminals of the high-voltage connector. The other end of the three-terminal terminal is connected to the motor stator.

2. The split-type controlled electric compressor structure as described in claim 1, characterized in that, The three terminals are covered with protective sleeves, and a three-phase socket sealing ring is provided at the connection between the protective sleeves and the motor housing.

3. The split-type control electric compressor structure as described in claim 2, characterized in that, A small end cap sealing gasket is provided at the connection between the small cover plate and the end of the motor housing.

4. The split-type controlled electric compressor structure as described in claim 3, characterized in that, A wear-resistant pad is provided on the side of the bearing housing away from the motor stator, and the stationary disc is fastened to the end face of the wear-resistant pad.

5. The split-type controlled electric compressor structure as described in claim 4, characterized in that, The stationary disc has a first positioning hole on the side near the bearing housing and on the wear-resistant pad, and the stationary disc has a second positioning hole on the side away from the bearing housing.

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