CN217607118U - Electric connector assembly and motor - Google Patents

Abstract

The utility model discloses an electric connector subassembly and motor, wherein the electric connector subassembly includes the base, a pedestal, first sealing washer and a plurality of plug connector, the base is provided with a plurality of ring seats, the conductor contact pin has been arranged in the inner chamber of ring seat, the terminal surface of base is provided with the seal groove that surrounds a plurality of ring seats, the pedestal connection motor, base parcel base is and cover the seal groove, the base is provided with the through-hole in order to supply to hold a plurality of ring seats, first sealing washer is installed in the seal groove, first sealing washer and base butt, every plug connector cartridge is in the inner chamber of a ring seat, the plug connector is provided with the plug pin hole of cooperation conductor contact pin. A plurality of ring seats are integrated on the base, so that various use requirements such as power supply, signal transmission and the like can be met simultaneously, and the production steps and the assembly steps of the electric connector are reduced; base and base realize sealed through first sealing washer, and first sealing washer surrounds a plurality of ring seats moreover, can prevent that external water, dust and foreign matter from getting into the inside of electric connector subassembly, and the structure is simplified, the equipment of being convenient for.

Description

Electric connector assembly and motor

Technical Field

The utility model relates to an electric connector technical field, in particular to electric connector subassembly and motor.

Background

In the related art, electric vehicles are used more and more widely, and with the prevalence of electric vehicles, the electric motors of the electric vehicles are used for more and more power supply, signal transmission and other application requirements, and the electric connectors are used more and more.

At present, the electric connector needs to be compatible with more functions, such as power supply, signal transmission and the like, the traditional electric connector has a single function, and needs to use a plurality of electric connectors dispersedly, so that the occupied space is large, the functions are dispersed, and the manufacturing steps are more; and the partially integrated electric connector adopts an integrated closed shell, so that the structure is solidified, and the universality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electric connector subassembly, integrated a plurality of functions, the function is concentrated and low in production cost.

The utility model discloses provide the motor that adopts above-mentioned electric connector subassembly simultaneously.

According to the utility model discloses electric connector component of first aspect embodiment, including base, first sealing washer and a plurality of plug connector, the base is provided with a plurality of ring seats, the conductor contact pin has been arranged in the inner chamber of ring seat, the terminal surface of base is provided with and surrounds a plurality ofly the seal groove of ring seat, pedestal connection in the base, the base parcel the base is and cover the seal groove, the base is provided with the through-hole for holding a plurality of ring seat, first sealing washer install in the seal groove, first sealing washer with the base butt, every the plug connector cartridge in one the ring seat the inner chamber, the plug connector is provided with the cooperation the contact pin hole of conductor contact pin.

According to the utility model discloses electric connector component of first aspect embodiment has following beneficial effect at least: a plurality of ring seats are integrated on the base, and each plug connector is connected with one ring seat, so that various use requirements such as power supply, signal transmission and the like can be met simultaneously, and the production steps and the assembly steps of the electric connector are reduced; the base and the base are sealed through the first sealing rings, and the first sealing rings surround the plurality of ring seats, so that external water, dust and foreign matters can be prevented from entering the inner part of the electric connector assembly, the structure is simplified, the assembly is convenient, and the production cost is reduced; aiming at different use scenes, the base can be replaced, and the universality is strong.

According to some embodiments of the first aspect of the present invention, the plug connector has an insertion end inserted into the inner cavity, an outer wall of the insertion end is provided with a sealing structure, and the sealing structure is sealed with the inner wall of the inner cavity in cooperation.

According to some embodiments of the first aspect of the present invention, the sealing structure comprises a second sealing ring, the outer wall of the insertion end is provided with a ring groove, the second sealing ring is located in the ring groove, the second sealing ring abuts against the inner wall of the inner cavity.

According to some embodiments of the first aspect of the present invention, the base is provided with an installation part, the installation part is connected through a fastener the base, the installation part is arranged outside the sealing groove.

According to the utility model discloses some embodiments of the first aspect, the conductor contact pin with the base is the integrated into one piece structure, the base deviates from one side of ring seat is provided with the control panel, conductor contact pin electric connection the control panel.

According to some embodiments of the first aspect of the present invention, the base faces the side of the base is provided with a holding tank, the shape of the holding tank matches with the shape of the base.

According to some embodiments of the first aspect of the present invention, the ring seat is provided with a first positioning portion located in the inner cavity, and the insertion end is provided with a second positioning portion cooperating with the first positioning portion.

According to some embodiments of the first aspect of the present invention, one of the first positioning portion and the second positioning portion is a bump, and the other is a slot for fitting the bump.

According to the utility model discloses some embodiments of the first aspect, the outer wall of ring seat is provided with the draw-in groove, the plug connector is provided with the cooperation the buckle of draw-in groove.

According to some embodiments of the first aspect of the present invention, the base is provided with a plurality of reinforcing ribs, one is connected respectively at both ends of the reinforcing ribs the ring mount.

According to the utility model discloses electric machine of second aspect embodiment contains the electric connector component of first aspect embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an electrical connector assembly according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an electrical connector assembly in accordance with an embodiment of the first aspect of the present invention;

fig. 3 is a first schematic structural diagram of a base according to some embodiments of the first aspect of the present invention;

FIG. 4 is a second schematic structural view of the base in FIG. 3;

FIG. 5 is a schematic view of a first seal ring associated with the base of FIG. 3;

fig. 6 is a first schematic structural diagram of a base according to another embodiment of the first aspect of the present invention;

FIG. 7 is a second schematic structural view of the base of FIG. 6;

FIG. 8 is a schematic view of a first seal ring associated with the base of FIG. 6;

fig. 9 is a schematic structural view of a plurality of plug-in units according to an embodiment of the present invention;

FIG. 10 is a schematic view of the structure of one of the connectors of FIG. 9;

fig. 11 is a schematic structural diagram of an electric machine according to an embodiment of the present invention.

The reference numbers are as follows:

the structure comprises a base 100, a sealing groove 101, a ring seat 110, an inner cavity 111, a first positioning part 112, a clamping groove 113, a conductor pin 120, an installation part 130, a control board 140, a reinforcing rib 150 and an annular reinforcing rib 160;

a base 200, a through hole 201 and a bulge 210;

a first seal ring 300;

the plug connector 400, a pin hole 401, a lead wire 410, a plug end 420, a ring groove 421, a second positioning part 422, a second sealing ring 430, a buckle 440, a fixture block 441 and a pressing part 442;

motor 500, housing 510.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Electrical connectors, also commonly referred to as circuit connectors, are conductor devices that bridge two conductors on a circuit so that current or signals can flow from one conductor to the other. An electrical connector is a connection system that provides a separable interface for connecting two sub-electronic systems to complete the connection of the circuits or electronic systems to each other, i.e., a bridge between the two.

In the related technology, the electric vehicle is rapidly developed, the functions of the electric vehicle are more and more, the electric vehicle needs to use a large number of electric connectors for transmitting current, signals and the like, the traditional connector has a single function, in order to meet the multifunctional use requirement, a plurality of electric connectors are often used in a scattered manner, the number of the electric connectors is more and more, the occupied space is large, the functions are scattered, more welding stations of the electric connectors need to be equipped, and the production cost is high; in addition, each electrical connector needs to be provided with an independent sealing structure, so that the assembly steps are complicated, and the electrical connector is easy to miss and cause damage and failure.

As shown in fig. 1 and fig. 2, an embodiment of the first aspect of the present invention provides an electrical connector assembly applied to a motor, where a plurality of electrical connectors are integrated into one electrical connector assembly, so as to satisfy multiple usage scenarios.

The electric connector assembly comprises a base 100 and a plurality of plug connectors 400, wherein a plurality of ring bases 110 are arranged on the base 100, conductor pins 120 are arranged in inner cavities 111 of the ring bases 110, each plug connector 400 can be connected with one ring base 110, the plug connector 400 is provided with pin holes 401 matched with the conductor pins 120, and the inner walls of the pin holes 401 are provided with metal sheets and are conductively connected with wires 410 of the plug connector 400. When the connector 400 is used, the connector 400 is inserted into the inner cavity 111 of the ring base 110, and the conductor pins 120 are inserted into the pin holes 401 to realize electrical connection and transmit current or signals.

The base 100 is connected to the base 200, the terminal surface of the base 100 is provided with the seal groove 101 that surrounds a plurality of ring seats 110, the base 200 is provided with the through-hole 201 in order to hold a plurality of ring seats 110, the base 200 wraps up the base 100 and covers the seal groove 101, be equipped with first sealing washer 300 in the seal groove 101, first sealing washer 300 and base 200 butt, base 200 and base 100 realize sealedly through first sealing washer 300.

It should be understood that, as shown in fig. 11, the base 200 may be integrated with the housing 510 of the motor 500, and an integrated structure is adopted, so that the structure is more stable and the waterproof performance is better; the base 200 may also be a separate component that is mounted to the housing 510 of the motor 500, and the electrical connector assembly may be used with a variety of motors or other components of an electric vehicle to improve versatility.

The electric connector assembly integrates a plurality of ring seats 110 into the base 100, and the plug connector 400 is inserted into the inner cavity 111 of each ring seat 110, so that the electric connector assembly can meet various use requirements such as power supply and signal transmission at the same time, has centralized functions and small occupied space, can reduce welding stations of the electric connector and simplifies production steps and assembly steps because a plurality of electric connectors are integrated into a whole; the base 100 and the base 200 are matched to compress the first sealing ring 300 to realize sealing, because the first sealing ring 300 is positioned at the periphery of the plurality of ring seats 110, the first sealing ring 300 can prevent external water, dust and foreign matters from entering the electric connector assembly, and the first sealing ring 300 realizes sealing of the plurality of electric connectors, so that the structure is simplified, the assembly is convenient, and the production cost is reduced.

It can be understood that the plurality of ring bases 110 may be freely arranged, and a gap needs to be reserved between two adjacent ring bases 110, so as to facilitate installation of the plug connector 400 and pulling out of the plug connector 400. The layout of the plurality of ring seats 110 may be adjusted according to the limitation of the space and surrounding components of the electrical connector assembly used in the electric vehicle, as shown in fig. 3 to 5, the plurality of ring seats 110 are arranged in a triangular area, and the shape of the first sealing ring 300 is adjusted accordingly, so that the first sealing ring 300 can surround the plurality of ring seats 110 and be close to the plurality of ring seats 110, and the layout is more compact. As shown in fig. 6 to 8, a plurality of ring seats 110 may be disposed in a meniscus region, and the shape of the first sealing ring 300 may be adjusted accordingly, so that the first sealing ring 300 can surround the plurality of ring seats 110 and be adjacent to the plurality of ring seats 110, and the layout is more compact. Because the base 100 and the base 200 are sealed by the first sealing ring 300, the layout can be changed by replacing the base 100 and the first sealing ring 300 with different shapes, thereby meeting various use scenes, improving the universality and reducing the cost.

It can be understood that the plug 400 has a plug end 420 inserted into the inner cavity 111, the pin hole 401 is disposed at an end surface of the plug end 420, and in order to seal the plug end 420 and the ring seat 110 and prevent external water, dust or foreign matter from contacting the conductor pin 120, a sealing structure is disposed at an outer wall of the plug end 420, and the sealing structure is sealed in cooperation with an inner wall of the inner cavity 111, so as to block the external water, dust or foreign matter and improve reliability of use.

Referring to fig. 9 and 10, it can be understood that the sealing structure includes a second sealing ring 430, an annular groove 421 is formed in an outer wall of the insertion end 420, the second sealing ring 430 is installed in the annular groove 421, after the insertion end 420 is inserted into the inner cavity 111 of the ring seat 110, the second sealing ring 430 abuts against an inner wall of the inner cavity 111, the second sealing ring 430 is pressed and deformed to achieve sealing, external water, dust or foreign matter is blocked by the second sealing ring 430, the conductor pin 120 is prevented from being contaminated, and the use reliability is improved. Here, the number of the second seal rings 430 is not limited, and may be one or more, to further improve the sealing property. The cross-sectional shape of the second sealing ring 430 may be circular, or may be other shapes, such as various sealing rings with labyrinth structures, which can meet the sealing requirements.

It can be understood that the sealing structure may also take other forms, for example, the outer wall of the insertion end 420 is provided with a protruding ring, the protruding ring is in interference fit with the inner wall of the inner cavity 111, and after the insertion end 420 is inserted into the inner cavity 111 of the ring seat 110, the outer water, dust or foreign matter can be blocked, so as to prevent the conductor pin 120 from being contaminated. Or, a sealing gasket is arranged on the end surface of the ring seat 110, and after the plugging end 420 is inserted into the inner cavity 111 of the ring seat 110, the plug-in unit 400 and the ring seat 110 are matched to clamp the sealing gasket to realize sealing, so that external water, dust or foreign matters can be blocked, and the conductor pins 120 are prevented from being polluted.

Referring to fig. 3 and 6, it can be understood that the base 100 is provided with a plurality of mounting portions 130, the mounting portions 130 are connected to the base 200 by fasteners, and the plurality of mounting portions 130 are distributed at intervals along the circumference of the base 100 and are stressed uniformly and more tightly after being fixed by the fasteners. The plurality of mounting portions 130 are disposed outside the sealing groove 101, that is, outside the first sealing ring 300, and after the base 100 is fixed to the base 200, water, dust, or foreign substances from the outside are prevented from entering from the location of the fastener by using the sealing effect of the first sealing ring 300. Relief holes may also be provided in the first seal ring 300 for fasteners to pass through, again to effect a seal.

Generally, the fastener may be a screw, the mounting portion 130 is provided with a circular hole for the screw to pass through, the base 200 is provided with a threaded hole, and the screw passes through the circular hole of the mounting portion 130 and then is screwed into the threaded hole of the base 200 to realize fixation. The screw hole of base 200 adopts the blind hole as being good, does not show the screw hole outside base 200, can prevent that the outer water of base 200, dust or foreign matter from the screw hole entering, and sealed effect is better.

Of course, the fasteners may also be pins, rivets, etc. and can also secure the base 100 to the base 200.

It can be understood that the base 100 is an injection molding piece, when manufacturing, the conductor pin 120 and the base 100 are integrally injection molded, the conductor pin 120 and the base 100 are tightly combined, the positioning is accurate, the product consistency is good, one side of the base 100 departing from the ring seat 110 is provided with the control board 140, the conductor pin 120 is electrically connected with the control board 140, generally, the conductor pin 120 is fixedly connected with the control board 140 through soldering, the requirement of electrical connection is met, the control board 140 can be fixed, and the structure is simplified. The plug 400 is connected to the control board 140 through the conductive pin 120, so that the transmission of current and signal can be realized.

Referring to fig. 2, the mounting portion 130 may also be used to fix the control board 140, for example, a fastener fixes the control board 140 and the mounting portion 130 to the base 200 at the same time, or the mounting portion 130 and the control board 140 are fixed by inserting pins, so as to further improve the stability of the control board 140 and prevent the connection position between the conductor pin 120 and the control board 140 from being loosened.

It can be understood that, the side of the base 200 facing the base 100 is provided with a receiving groove (not shown in the figure), the shape of the receiving groove matches with the shape of the base 100, and when assembling, the base 100 is embedded into the receiving groove to realize positioning, which is convenient for assembling and improves efficiency, and moreover, the base 100 can be more stably limited to prevent loosening and shifting. As shown in fig. 1, the base 200 is provided with a protrusion 210 at a position corresponding to the receiving groove, and the shape of the protrusion 210 is consistent with that of the base 100, so as to form a receiving groove with a proper shape, so that the thickness of each part of the base 200 is uniform, which is beneficial to injection molding and reduces the non-uniform shrinkage defect after injection molding.

It can be understood that, in order to realize the accurate assembly of the connector 400 and ensure that the conductor pin 120 is accurately inserted into the pin hole 401, the ring seat 110 is provided with the first positioning portion 112 located in the inner cavity 111, the inserting end 420 is provided with the second positioning portion 422 matching with the first positioning portion 112, the first positioning portion 112 and the second positioning portion 422 are matched, the inserting end 420 is accurately positioned, the conductor pin 120 is prevented from being damaged by pressure, and the fool-proof effect can be played, thereby improving the assembly efficiency.

Referring to fig. 3 and 9, it can be understood that the first positioning portion 112 is a protrusion, the protrusion is disposed on an inner wall of the inner cavity 111, the second positioning portion 422 is a slot disposed on the inserting end 420, the inserting end 420 is inserted into the inner cavity 111, the slot needs to be aligned with the protrusion to insert the protrusion, so as to play a role of fool-proofing, and meanwhile, the conductor pin 120 is accurately inserted into the pin hole 401, so that accurate assembly is achieved.

Certainly, the first positioning portion 112 may also be a slot, the slot is disposed on the inner wall of the inner cavity 111, the second positioning portion 422 is a protrusion disposed on the inserting end 420, the inserting end 420 is inserted into the inner cavity 111, the protrusion needs to be aligned with the slot first to insert, so as to play a fool-proof role, and meanwhile, the conductor pin 120 is precisely inserted into the pin hole 401, so as to achieve precise assembly.

The convex blocks can be cylinders with sector sections or cylinders with other shapes, only one convex block can be adopted, and a plurality of convex blocks can also be adopted, and the plurality of convex blocks are distributed at intervals along the circumferential direction of the ring seat 110 and can meet the positioning requirement.

It can be appreciated that a plurality of plug connectors 400 include but are not limited to power plug connector, instrument plug connector, reserve plug connector, headlight plug connector, back light plug connector and speed sensor plug connector etc. wherein the power plug connector is the power supply part, and is more important, in case the trouble can lead to the malfunctioning of electric motor car, brings danger. Therefore, as shown in fig. 1 and 10, a part of the plug 400 is provided with a buckle 440, the outer wall of the ring seat 110 is provided with a clamping groove 113, the plug 400 is assembled with the ring seat 110 in a matching way, the buckle 440 is buckled into the clamping groove 113, the connection stability is improved, the plug 400 is prevented from being separated from the ring seat 110, and the use reliability is improved. Two symmetrically arranged buckles 440 are generally adopted, so that the structure is more stable, and the disassembly and the assembly are convenient.

It can be understood that, referring to fig. 10, the buckle 440 is a substantially strip-shaped plate, one end of the buckle 440 is provided with a fixture block 441 matching with the slot 113, and the other end of the buckle 440 is provided with a pressing portion 442, the middle portion of the buckle 440 is connected to the plug-in connector 400 through the supporting bar, when detaching, a user presses the pressing portion 442, the fixture block 441 tilts, and the fixture block 441 can be disengaged from the slot 113; when the fixing device is installed, a user presses the pressing part 442, the clamping block 441 tilts, the inserting end 420 is inserted into the inner cavity 111, the clamping block 441 is aligned with the clamping groove 113, the pressing part 442 is loosened, the clamping block 441 is automatically clamped into the clamping groove 113, fixing is achieved, and operation is simple and convenient.

Referring to fig. 3 and 6, it can be understood that the plurality of ring bases 110 are located in the region enclosed by the sealing groove 101, and considering that the ring bases 110 protrude from the base 100, and the combination position of the ring bases 110 and the base is a weak point, a plurality of reinforcing ribs 150 are disposed on the base 100, two ends of each reinforcing rib 150 are respectively connected to one ring base 110, and the plurality of ring bases 110 are connected to form a grid through the plurality of reinforcing ribs 150, so as to greatly improve the overall structural strength of the base 100, improve the structural strength of the connection between the ring bases 110 and the base 100, improve the service life of the ring bases 110 in the plug 400, and be reliable and durable.

Referring to fig. 4 and 7, it can be understood that the ring seat 110 extends from the front to the back of the base 100, the back of the base 100 is also provided with the reinforcing ribs 150, and the plurality of ring seats 110 are connected in a grid shape by the plurality of reinforcing ribs 150, so as to greatly improve the structural strength of the whole base 100 and the structural strength of the connection between the ring seat 110 and the base 100; further, the annular rib 160 is provided on the edge of the back surface of the base 100, and the annular rib 160 connects the plurality of mounting portions 130, thereby improving the strength of connection between the mounting portions 130 and the base 100 and improving the overall structural strength of the base 100. The use reliability is improved.

Referring to fig. 11, a second embodiment of the present invention provides a motor 500, wherein the electrical connector assembly of the first embodiment is integrated on a housing 510 of the motor 500. The base 200 of the electrical connector assembly is integrated with the housing 510 and has an integrated structure for easy assembly. The electric connector assembly integrates a plurality of ring seats 110 into the base 100, each ring seat 110 is connected with one plug connector 400, various use requirements such as power supply, signal transmission and the like can be met simultaneously, functions are concentrated, occupied space is small, welding stations of the electric connectors can be reduced due to the fact that the plurality of electric connectors are concentrated into a whole, and production steps and assembly steps are simplified; the base 100 and the base 200 are matched to compress the first sealing ring 300 to realize sealing, because the first sealing ring 300 is positioned at the periphery of the plurality of ring seats 110, the first sealing ring 300 can prevent external water, dust and foreign matters from entering the electric connector assembly, and the first sealing ring 300 realizes sealing of the plurality of electric connectors, so that the structure is simplified, the assembly is convenient, and the production cost is reduced.

The utility model discloses still provide the electric motor car that uses above-mentioned motor 500, the electric motor car includes but not limited to electric automobile, electric bicycle, electric tricycle, electric motorcycle car, and the homoenergetic adopts the motor of the embodiment of the second aspect.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims (10)

1. An electrical connector assembly, comprising:

the connector comprises a base, a plurality of ring seats and a plurality of sealing grooves, wherein the base is provided with the ring seats, conductor contact pins are arranged in inner cavities of the ring seats, and the end faces of the base are provided with the sealing grooves surrounding the ring seats;

the base is used for being connected with a motor, wraps the base and covers the sealing groove, and is provided with a through hole for accommodating the ring seats;

the first sealing ring is arranged in the sealing groove and is abutted against the base;

and the plug connectors are inserted into the inner cavities of the ring seats and are provided with pin holes matched with the conductor pins.

2. The electrical connector assembly of claim 1 wherein said plug member has a plug end inserted into said cavity, an outer wall of said plug end being provided with a sealing structure, said sealing structure cooperating with an inner wall of said cavity to seal.

3. The electrical connector assembly of claim 2, wherein the sealing structure includes a second sealing ring, an outer wall of the mating end is provided with a ring groove, the second sealing ring is located in the ring groove, and the second sealing ring abuts against an inner wall of the inner cavity.

4. The electrical connector assembly of claim 2, wherein the ring seat is provided with a first positioning portion located in the inner cavity, and the insertion end is provided with a second positioning portion engaged with the first positioning portion.

5. The electrical connector assembly of claim 4, wherein one of the first positioning portion and the second positioning portion is a protrusion, and the other one of the first positioning portion and the second positioning portion is a slot for engaging the protrusion.

6. The electrical connector assembly of claim 1, wherein the base is provided with a mounting portion that connects the base with a fastener, the mounting portion being disposed outside the sealing groove.

7. The electrical connector assembly of claim 1, wherein a side of the base facing the base is provided with a receiving groove having a shape matching a shape of the base.

8. The electrical connector assembly of any one of claims 1 to 7, wherein the outer wall of the ring seat is provided with a snap groove, and the plug connector is provided with a snap fit to the snap groove.

9. The electrical connector assembly of claim 1, wherein the base is provided with a plurality of ribs, and each of the two ends of the ribs is connected to one of the ring seats.

10. An electrical machine comprising an electrical connector assembly according to any one of claims 1 to 9.

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