Motor connecting mechanism in immersion cavity

Abstract

The utility model discloses a motor connecting mechanism in an immersion cavity, which comprises a shell, a motor stator assembly is arranged in the shell, the device further reinforces and improves the insulation protection performance, and improves the sealing performance of a motor connecting wire harness in the immersion cavity so as to improve the insulation protection performance. A sealing gasket pressing mechanism is designed at the tail part of the terminal to lock the sealing gasket, so that the electrified body part of the terminal is thoroughly isolated from an environment hidden danger area, the invasion of conductive media such as refrigerant, refrigerant oil and the like is effectively prevented, the structural firmness of the installation of the terminal connecting piece is improved, and the failure risk of the electrical connecting piece is reduced; an annular sealing plug is additionally arranged at the connecting position of the upper portion of the terminal plastic shell and the three-phase binding post, meanwhile, pressing sealing is controlled through a size chain to prevent disengaging, condensed water cannot invade an electrified body in the terminal plastic shell, and a retaining needle structure is designed at the bottom of the terminal to be matched with a retaining groove in the terminal plastic shell to be connected with the terminal and the terminal plastic shell.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor connection mechanism in immersion cavity, specifically relating to a motor connection mechanism in immersion cavity. Background Technology

[0002] A motor connection mechanism within a liquid immersion chamber refers to the connection system between a motor and other mechanical components in a liquid environment. This mechanism is typically designed to be waterproof and corrosion-resistant to ensure normal operation of the motor while immersed in liquid. It may include sealed cable connections, bearings, and transmission devices to ensure that the motor's power is effectively transmitted to the required mechanical components, while preventing liquid from seeping into the motor's interior, thus protecting the motor's safety and performance. Such mechanisms are widely used in underwater robots, liquid mixing equipment, and other mechanical systems that need to operate in liquids.

[0003] The energy-saving characteristics of electric vehicles have become a major trend in vehicle development. With the country's vigorous promotion, the market for air conditioning compressors for electric vehicles is also growing. With the continuous development of industry technology, the voltage platform of the whole vehicle is also getting higher and higher. At present, the "800V platform" has been widely used in the market. As the core component of the automotive refrigeration system, the safety performance of the electric compressor motor is also receiving much attention. The electric vehicle air conditioning compressor motor works in a harsh environment where refrigerant and refrigeration oil are mixed. Impurities and foreign objects such as refrigeration oil can easily remain at the motor lead terminal. If the protection is not in place, it can easily cause poor insulation, thereby causing safety accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a motor connection mechanism inside the immersion chamber to solve the problem mentioned in the background art. The energy-saving characteristics of electric vehicles have become a major trend in vehicle development. With the country's vigorous promotion, the market for air conditioning compressors for electric vehicles is also growing. With the continuous development of industry technology, the voltage platform of the whole vehicle is also getting higher and higher. At present, the "800V platform" has been widely used in the market. As the core component of the automotive refrigeration system, the safety performance of the electric compressor motor is also of great concern. The electric vehicle air conditioning compressor motor works in a harsh environment where refrigerant and refrigeration oil are mixed. The motor lead terminal is easily contaminated with impurities and foreign objects such as refrigeration oil. If the protection is not in place, it can easily cause poor insulation, thereby causing safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor connection mechanism within an immersion chamber, comprising a housing, a motor stator assembly installed inside the housing, a terminal plastic shell A installed at the upper end of the motor stator assembly, a terminal A installed at the upper left side of the terminal plastic shell A, a copper wire protective sleeve installed at the upper right side of the terminal plastic shell A, a terminal plastic shell sealing gasket installed at the upper end of the copper wire protective sleeve, and a sealing element installed at the upper end of the terminal plastic shell sealing gasket. The terminal sealing gasket is used. The motor stator assembly has terminal pins leading out at the upper end. A terminal pressure plate is installed at the upper inner position of the housing. An mounting plate is installed at the upper position of the housing. The mounting plate has slots at both ends. The mounting plate has movable plates installed at both ends through the slots. The movable plates insert an extension rod fixed at the inner end face into the slot. A snap-fit ​​plate fixed at the other end of the extension rod snaps into the slot.

[0006] Preferably, the motor body is installed at the lower end of the housing.

[0007] Preferably, a circular hole is provided at the upper end of the movable plate, and the movable plate extends outward by an extension rod.

[0008] Preferably, the movement of the movable plate causes the snap-fit ​​plate to move within the slot, and because the snap-fit ​​plate is snapped into the slot, the movable plate will not move to detach from the mounting plate.

[0009] Preferably, the terminal pins are provided in three parts, and the motor stator assembly leads out three terminal pins corresponding to the UVW phase.

[0010] Preferably, the wire inside the copper wire protective sleeve passes through the reserved hole in the terminal plastic shell sealing gasket and is crimped to the tail structure of terminal A.

[0011] Preferably, a sealing rib is provided at the outer position of the terminal plastic shell sealing gasket, which is interference-fitted with the terminal plastic shell A for sealing.

[0012] Preferably, the terminal pressure plate, terminal pin, and terminal sealing gasket are integrated as a single unit and cannot be disassembled.

[0013] Compared with the prior art, the present invention provides a motor connection mechanism in an immersion cavity, which has the following advantages:

[0014] This device further strengthens and enhances insulation protection performance, improving the sealing performance of the motor connection harness within the immersion chamber, thereby improving insulation protection performance. A sealing gasket clamping mechanism is designed at the end of the terminal to lock the sealing gasket, completely isolating the live parts of the terminal from potential environmental hazards, effectively preventing the intrusion of conductive media such as refrigerant and refrigeration oil, improving the structural robustness of the terminal connector installation, and reducing the risk of electrical connector failure. An annular sealing plug is added at the connection between the upper part of the terminal housing and the three-phase terminal block, and a dimensional chain is used to control the clamping seal to prevent it from coming loose, preventing condensed water vapor from entering the live parts inside the terminal housing. A backlash pin structure is designed at the bottom of the terminal to cooperate with the backlash groove inside the terminal housing to connect the terminal and the terminal housing.

[0015] This device features movable plates at both ends of the mounting plate that can move outwards. The movable plates are moved outwards via extension rods. Because the snap-fit ​​plate is snapped into the inside of the slot, the movable plates will not move and separate from the mounting plate. At the same time, the movable plates can be adjusted by moving them when the through hole and the external mounting hole are not aligned, so that the through hole and the external mounting hole can be aligned, thereby installing the housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a motor connection mechanism inside an immersion chamber according to the present invention.

[0017] Figure 2 This is a partial cross-sectional schematic diagram of a motor connection mechanism inside an immersion chamber according to the present invention.

[0018] Figure 3 This is a schematic diagram of the motor structure of a motor connection mechanism inside an immersion cavity according to the present invention.

[0019] Figure 4 This is a top view of the housing structure of the motor connection mechanism inside the immersion cavity according to the present invention.

[0020] Figure 5 This is a schematic cross-sectional view of the housing of a motor connection mechanism inside an immersion cavity according to the present invention.

[0021] In the diagram: 1. Housing; 2. Terminal pressure plate; 3. Terminal pin; 4. Terminal sealing gasket; 5. Terminal A; 6. Terminal plastic shell A; 7. Motor stator assembly; 8. Copper wire protective sleeve; 9. Terminal plastic shell sealing gasket; 10. Mounting plate; 11. Motor body; 12. Moving plate; 13. Through round hole; 14. Extension rod; 15. Snap-fit ​​plate; 16. Snap-fit ​​groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The utility model provides, for example Figure 1-5 The illustrated motor connection mechanism within an immersion chamber includes a housing 1. A motor stator assembly 7 is installed inside the housing 1. A terminal housing A6 is installed at the upper end of the motor stator assembly 7. A terminal A5 is installed at the upper left side of the terminal housing A6. A copper wire protective sleeve 8 is installed at the upper right side of the terminal housing A6. A terminal housing sealing gasket 9 is installed at the upper end of the copper wire protective sleeve 8. A terminal post sealing gasket 4, which serves a sealing function, is installed at the upper end of the terminal housing sealing gasket 9. The motor stator assembly 7... A terminal pin 3 is led out at the upper end. A terminal pressure plate 2 is installed inside the upper end of the housing 1. An installation plate 10 is installed at the upper end of the housing 1. Slots 16 are provided at the left and right ends of the installation plate 10. Movable plates 12 are installed at the left and right ends of the installation plate 10 through the slots 16. The movable plates 12 insert the extension rod 14, which is fixed at the inner end face, into the inside of the slots 16. The snap-fit ​​plate 15, which is fixed at the other end of the extension rod 14, snaps into the inside of the slots 16.

[0026] The motor stator assembly 7 has three leads corresponding to the UVW phase. The UVW leads are internally made of motor copper wire for current conduction. The ends of the leads are connected to terminal A5 for current conduction. The wires inside the copper wire protective sleeve 8 pass through the pre-drilled holes in the terminal plastic housing sealing gasket 9 and are crimped to the tail structure of terminal A5. The external sealing ribs of the terminal plastic housing sealing gasket 9 are press-fitted with the terminal plastic housing A6 for sealing. Simultaneously, the protruding part of the terminal plastic housing sealing gasket 9 is pressed tightly by terminal A5, completing the terminal plastic housing through the internal holes. The tail is sealed. Terminal A5 and the terminal pin 3 are inserted into the pre-reserved square hole inside the terminal plastic shell A6 in the direction shown in the figure. When the bottom anti-reverse pin of terminal A5 is inserted, the terminal A5 is deformed by force and pressed in. After reaching the predetermined position, the terminal A5 returns to its shape. The anti-reverse pin is stuck in the anti-reverse groove of the terminal plastic shell A6 to prevent the terminal A5 from coming out of the terminal plastic shell A6. Since the terminal A5 is connected to the terminal plastic shell sealing gasket 9 and the copper wire protective sleeve 8, it also prevents the assembly relationship between the terminal A5, the copper wire protective sleeve 8, the terminal plastic shell sealing gasket 9 and the terminal plastic shell A6.

[0027] like Figure 1 and Figure 2 As shown, a motor body 11 is installed at the lower end of the housing 1. A circular hole 13 is provided at the upper end of the movable plate 12. The movable plate 12 extends outward through the extension rod 14. The movement of the movable plate 12 causes the snap-fit ​​plate 15 to move inside the slot 16. Since the snap-fit ​​plate 15 is snapped into the slot 16, the movable plate 12 will not move out of the mounting plate 10. There are three terminal pins 3. The motor stator assembly 7 leads out three terminal pins 3 corresponding to the UVW phase.

[0028] The terminal block pressure plate 2, terminal pin 3, and terminal sealing gasket 4 have become an integral, non-removable unit through the installation process. The terminal block pressure plate 2, terminal pin 3, and terminal sealing gasket 4 together form a terminal block. In this document, "terminal block" refers to all related components of the terminal block pressure plate 2, terminal pin 3, and terminal sealing gasket 4. The contact surface of the terminal block pressure plate 2 mates with the pre-reserved groove in the housing 1, and the terminal block pressure plate 2 is tightened with bolts to form a seal between the terminal block and the housing 1. The terminal sealing gasket 4 and terminal pin 3 are connected to terminal A5. Three pre-drilled holes are provided at the end for interference fit. The motor stator assembly 7 axially tightens the terminal housing A6, and the terminal housing A6 axially tightens the terminal sealing gasket 4. The terminal sealing gasket 4 and the terminal are fixed as a whole. The terminal is locked and fixed to the housing 1 by bolts. The assembly relationship ensures that the terminal sealing gasket 4 cannot be removed from the terminal housing A6, thereby ensuring that the internal cavity of the terminal housing A6 is sealed separately. The terminal pin is inserted into the pre-drilled hole of the terminal A5 and contacts the inside of the terminal A5, completing the transmission of current from the motor copper wire to the terminal and then to the outside of the housing 1.

[0029] like Figure 1and Figure 3 As shown, the wire inside the copper wire protective sleeve 8 passes through the reserved hole in the terminal plastic shell sealing gasket 9 and is crimped to the tail structure of terminal A5. A sealing rib is provided at the external position of the terminal plastic shell sealing gasket 9, which is press-fitted with the terminal plastic shell A6 for sealing. The terminal pressure plate 2, terminal pin 3 and terminal sealing gasket 4 are completely integrated and cannot be disassembled.

[0030] The terminal tail is designed with a sealing gasket clamping mechanism to lock the sealing gasket, completely isolating the live parts of the terminal from the environmental hazard area, effectively preventing the intrusion of conductive media such as refrigerant and refrigeration oil. An annular sealing plug is added to the upper part of the terminal housing where it connects to the three-phase terminal block. At the same time, the sealing is clamped and sealed by a dimensional chain to prevent it from coming off, so that condensed water vapor cannot enter the live parts inside the terminal housing.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrical machine connection mechanism within a bath, characterized by, The utility model provides a motor terminal plastic shell, including the shell (1), the inside position of shell (1) is installed motor stator assembly (7), the upper end position of motor stator assembly (7) is installed terminal plastic shell A (6), the upper end left side position of terminal plastic shell A (6) is installed terminal A (5), the upper end right side position of terminal plastic shell A (6) is installed copper wire protection sleeve (8), the upper end position of copper wire protection sleeve (8) is installed terminal plastic shell sealing pad (9), the upper end position of terminal plastic shell sealing pad (9) is installed and is sealed with the binding post sealing pad (4) of sealing effect, the motor stator assembly (7) is led out binding post pin needle (3) at the upper end position, the upper end inside position of shell (1) is installed binding post pressing plate (2), the upper end position of shell (1) is installed mounting plate (10), the left and right two end positions of mounting plate (10) are provided with the clamping groove (16), and the left and right two end positions of mounting plate (10) are installed mobile plate (12) through clamping groove (16), and the extension rod (14) fixed in the inside position of clamping groove (16) is inserted to the inside position of clamping groove (16) of mobile plate (12) fixed in the inside end surface position, and the clamping plate (15) fixed in the other end position of extension rod (14) is clamped in the inside position of clamping groove (16).

2. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The lower end position of the shell (1) is installed with a motor body (11).

3. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The upper end position of the mobile plate (12) is provided with a through-hole (13), and the mobile plate (12) extends outwardly through the extension rod (14).

4. A liquid immersion cavity-in electric machine connection mechanism according to claim 3, characterized in that: The movement of the mobile plate (12) causes the clamping plate (15) to move in the inside position of the clamping groove (16), and since the clamping plate (15) is clamped in the inside position of the clamping groove (16), the mobile plate (12) cannot move away from the mounting plate (10).

5. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The binding post pin needle (3) is provided with three, and the motor stator assembly (7) leads out three binding post pin needles (3) corresponding to UVW phases.

6. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The wire inside the copper wire protection sleeve (8) passes through the reserved hole in the terminal plastic shell sealing pad (9) and is crimped with the tail structure of the terminal A (5).

7. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The outside position of the terminal plastic shell sealing pad (9) is provided with a sealing rib, which is sealed by interference fit with the terminal plastic shell A (6).

8. A liquid immersion cavity-in electric machine connection mechanism according to claim 1, characterized in that: The binding post pressing plate (2), the binding post pin needle (3) and the binding post sealing pad (4) are complete and integrated and cannot be disassembled.

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