Anti-drop connector and automobile

By using the anti-detachment connector design and the cooperation of ball bearings and locking grooves, a stable connection between the generator and the three-phase electrical control line is achieved, solving the problem of wire harness detachment and improving the stability of the connection and production efficiency.

CN223967450UActive Publication Date: 2026-03-03CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In traditional electric vehicles, the three-phase connection structure between the generator and the electronic control system is prone to detachment under complex operating conditions, leading to wiring harness breakage and affecting normal use.

Method used

The connector employs an anti-detachment mechanism, including a plug assembly, a socket assembly, a locking component, and a limiting component. Through the cooperation of ball bearings and locking grooves, a secure connection between the plug and the socket is achieved, and the limiting component provides secondary locking to prevent detachment.

Benefits of technology

It improves the stability of the connection, prevents the wire harness from falling off, increases production efficiency, and facilitates assembly and installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-drop connector and an automobile, the anti-drop connector comprises a plug device, a socket device, a locking assembly and a limiting assembly, when the plug device and the socket device are plugged in place, the locking assembly is used for locking the plug device and the socket device, and the limiting assembly is used for limiting the locking assembly and the plug device or the socket device; according to the anti-disengaging connector and the automobile, the anti-disengaging connector is used for connecting two parts of an automobile power assembly, compared with the prior art, connection is more stable, disengaging can be avoided, the overall connecting structure is simple, assembly and installation are convenient, and production efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to an anti-detachment connector and an automobile. Background Technology

[0002] In traditional electric vehicles, the motor and electronic control unit are separate structures. The three-phase connector is a high-voltage component connecting the motor and the electronic control unit, which outputs high-voltage three-phase current to drive the motor. Currently, the connection structure between the alternator and the three-phase wires in a car is as follows: the three wire harnesses of the three-phase wires are arranged side by side, and there are three parallel three-phase wire connectors on the alternator housing. The ends of the three wire harnesses are plugged into the connectors. However, under complex operating conditions, the three-phase wires vibrate violently, which may cause the wire harnesses to come loose and affect normal operation.

[0003] Therefore, it is necessary to improve the connection structure of the three-phase wire to three-phase wire connector in the existing technology. Compared with the existing technology, the connection is more stable, which can prevent the wire harness from falling off. Moreover, the overall connection structure is simple, which is convenient for assembly and installation and can improve production efficiency. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide an anti-disconnection connector and an automobile. When the three-phase wires are used, they are connected to the generator controller assembly through the anti-disconnection connector. Compared with the prior art, the connection is more stable, which can prevent the wire harness from falling off. Moreover, the overall connection structure is simple, which is convenient for assembly and installation and can improve production efficiency.

[0005] The anti-disconnection connector of this utility model includes a plug device, a socket device, a locking component, and a limiting component. When the plug device and the socket device are inserted into place, the locking component is used to lock the plug device and the socket device together, and the limiting component is used to limit the locking component to the plug device or the socket device. When the plug device is inserted into the socket device, the locking component can lock the plug device, thereby improving the stability of the connection.

[0006] Furthermore, the locking assembly includes a locking member disposed on the socket device, the locking member being drivable to move radially for locking or unlocking the plug device; the locking member being drivable to move radially under the action of an external force, thereby locking or unlocking the plug device.

[0007] Furthermore, the locking element is a ball bearing, and there are multiple ball bearings. The plug device is provided with multiple locking grooves that cooperate with the ball bearings. The locking element can be driven to engage in the locking groove to form a lock and driven to leave the locking groove to form an unlock. Through the cooperation between the ball bearings and the locking grooves, the ball bearings can be operated to move radially, thereby facilitating engagement in the locking grooves. The overall locking structure is simple.

[0008] Furthermore, the locking assembly also includes a locking housing disposed on the plug device. The locking housing can be driven to move axially and can be locked to limit the locking member when it is engaged with the locking groove. The locking housing is provided so that the locking member can be limited when it is engaged with the locking groove, thereby improving the stability of the connection.

[0009] Furthermore, the socket device includes a female connector, which includes an inner ring portion I and an outer ring portion I, wherein the inner ring portion I is inserted into the outer ring portion I and forms an annular gap I with the outer ring portion I;

[0010] The plug device includes a male connector that can be plugged into the female connector. The male connector includes an inner core and an outer ring II. The inner core is inserted into the outer ring II and forms an annular gap II with the outer ring II.

[0011] In use, the inner core is inserted into the inner ring I and the outer ring II is located in the annular gap I; by forming the cooperation of the inner ring I, outer ring I, inner core and outer ring II, when the male end is inserted into the female end, the inner ring I and outer ring I can limit the inner core and outer ring II respectively, thereby improving the tightness of the connection.

[0012] Furthermore, the outer ring portion I is provided with a receiving groove for accommodating the ball. The diameter of the outer opening of the receiving groove is smaller than the diameter of the ball. When the ball is placed in the receiving groove, the inner ring portion I can limit the ball's position. The inner ring portion I can be assembled after the ball is assembled, which facilitates the installation of the ball.

[0013] The locking groove is provided on the outer ring portion II. The outer surface of the outer ring portion II forms a stepped structure. The inner surface of the locking housing is provided with a limiting protrusion I. The outer surface of the outer ring portion II is provided with a limiting protrusion II. The locking housing is sleeved on the outer ring portion II. An elastic element receiving cavity is formed between the limiting protrusion I and the limiting protrusion II. An elastic element is provided in the elastic element receiving cavity and is correspondingly connected to the limiting protrusion I and the limiting protrusion II, and is used to apply an elastic force to the locking housing. By providing the elastic element, the locking housing can be locked and fixed to the outer ring portion II, thereby facilitating the axial movement of the locking housing.

[0014] Furthermore, it also includes a limiting member, which is disposed on the inner side of the locking housing and is used to cooperate with the limiting protrusion II to axially limit the locking housing; by providing the limiting member, the axial displacement of the locking housing is restricted, which can prevent the locking housing from detaching from the plug device.

[0015] Furthermore, the limiting component includes a limiting clamp with an opening, and the outer ring II has a limiting ring groove adapted to the limiting clamp. The limiting ring groove is located at one end of the locking housing away from the socket device. The limiting clamp can be engaged with the limiting ring groove to limit the locking housing when the locking member is engaged with the locking groove.

[0016] The limiting component also includes an installation ring and a connector for connecting the limiting clamp and the installation ring. The installation ring is sleeved on the plug device and connected to the limiting clamp via the connector. The limiting component allows for secondary locking when the plug device is connected to the socket device, preventing the locking housing from loosening and causing connection failure. During assembly, the limiting clamp can only engage with the limiting ring groove when the locking component engages with the locking groove, thus preventing loose connections and facilitating the determination of whether the plug device is securely connected to the socket device.

[0017] Furthermore, the anti-detachment connector also includes a sealing element, which is sleeved on the outer ring portion II and located on the side of the limiting protrusion I near the socket device;

[0018] The anti-disconnect connector is used for three-phase line connection of the generator. The plug device is the three-phase line connection end, the socket device is the electrical control terminal block, and the elastic element is a spring. A sealing element is provided to prevent water from entering the elastic element cavity and affecting the service life of the elastic element.

[0019] The present invention relates to a vehicle, which includes a powertrain, and the powertrain includes the aforementioned anti-disengagement connector.

[0020] The beneficial effects of this utility model are as follows: The anti-disconnect connector and automobile of this utility model are used to securely connect two components of the automobile powertrain by setting the anti-disconnect connector. By setting the locking component and the limiting component, when the plug device is inserted into the socket device, it can be locked and limited, thereby avoiding the risk of disconnection of the two components, resulting in power degradation or power interruption, improving the stability of the connection, and the overall connection structure is simple and easy to assemble and install. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 A schematic diagram of the plug and socket assembly;

[0024] Figure 3 for Figure 2 A sectional view;

[0025] Figure 4 A cross-sectional view of the plug and socket assembly when connected.

[0026] Figure 5 This is a schematic diagram of the limit component.

[0027] Figure 6 for Figure 5 A structural diagram from another perspective;

[0028] The above figures include the following reference numerals:

[0029] 1. Generator controller assembly; 2. Three-phase wire; 3. Plug assembly; 301. Mounting ring; 302. Connector; 303. Limiting clamp; 304. Locking housing; 3041. Limiting protrusion I; 305. Elastic element; 306. Outer ring II; 3061. Limiting protrusion II; 307. Inner core; 308. Locking groove; 309. Limiting ring groove; 310. Limiting element; 311. Sealing element; 4. Socket assembly; 401. Locking element; 402. Outer ring I; 403. Inner ring I; 404. Connecting base. Detailed Implementation

[0030] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a structural diagram of a plug device and a socket device. Figure 3 for Figure 2 sectional view, Figure 4 This is a cross-sectional view showing the plug and socket assembly connected. Figure 5 This is a schematic diagram of the limiting component. Figure 6 for Figure 5 Another structural diagram, such as Figure 1-6As shown: This embodiment of an anti-disengagement connector includes a plug device 3, a socket device 4, a locking component, and a limiting component. When the plug device 3 and the socket device 4 are inserted into place, the locking component locks the plug device 3 and the socket device 4 together, and the limiting component limits the locking component to either the plug device 3 or the socket device 4. When the plug device 3 and the socket device 4 are inserted into place, a certain degree of error is allowed in the insertion. The locking component can lock the plug device 3 and the socket device 4 together, thereby improving the stability of the connection. Simultaneously, the limiting component, when the locking component locks the plug device 3 and the socket device 4 together, can further limit the locking mechanism. The components are limited to the plug device 3 or the socket device 4 to achieve secondary locking and limiting. For example, a limiting block or limiting ring can be set at the plug device 3 or the socket device 4 to reduce the probability of the plug device 3 and the socket device 4 disconnecting. The locking component can be a locking element 401 set on the socket device 4 and a locking part set on the plug device 3. The locking element 401 can be a ball, and the locking part can be a groove that cooperates with the ball. Through the cooperation of the two, the plug device 3 is locked. Of course, other structures can also be used, such as a fixed bracket set on the plug device 3. The plug device 3 is locked by connecting and fixing the fixed bracket to the socket device 4.

[0031] In the prior art, the connection structure between the generator and the three-phase line in a car is as follows: the three wire harnesses of the three-phase line are arranged side by side, and the generator housing has three three-phase line connectors arranged side by side. The ends of the three wire harnesses of the three-phase line are plugged into the connectors. However, under complex operating conditions, the three-phase line vibrates violently, which may cause the wire harnesses to fall off, affecting normal use. The anti-disconnection connector and the car of this utility model, by setting the anti-disconnection connector, are used for a stable connection between two components of the car powertrain. It can be used to connect the generator three-phase line and the generator controller assembly. By setting the locking component and the limiting component, when the plug device 3 is plugged into the socket device 4, it can be locked and limited, thereby avoiding the risk of the two components disconnecting and causing power degradation or power interruption, improving the stability of the connection, and the overall connection structure is simple and easy to assemble and install.

[0032] In this embodiment, the locking assembly includes a locking member 401 disposed on the socket device 4. The locking member 401 can be driven to move radially to lock or unlock the plug device 3. The locking member 401 can be driven to move radially, thereby enabling the plug device 3 to be locked or unlocked. This facilitates locking and fixing the plug device 3 during use, and allows the plug device 3 to be unplugged when needed for maintenance or other purposes.

[0033] In this embodiment, the locking member 401 is a ball bearing, and there are multiple balls bearing. The plug device 3 is provided with multiple locking grooves 308 that cooperate with the balls bearing. The locking member 401 can be driven to engage in the locking groove 308 to form a lock and can be driven to leave the locking groove 308 to form an unlock. There are multiple balls bearing, preferably four, and multiple locking grooves 308 that cooperate with the balls bearing are provided on the plug device 3. The locking member 401 can engage in the locking groove 308 or leave the locking groove 308 under the action of external force. When the locking member 401 engages in the locking groove 308, the plug device 3 is locked and fixed. When the locking member 401 leaves the locking groove 308, the plug device 3 can be unplugged.

[0034] In this embodiment, the locking assembly further includes a locking housing 304 disposed on the plug device 3. The locking housing 304 can be driven to move axially and can be locked, used to limit the locking member 401 when it is engaged with the locking groove 308. When it is necessary to lock and fix the plug device 3, the locking housing 304 is moved axially away from the socket device 4. When the plug device 3 is inserted into the socket device 4, the locking member 401 is engaged with the locking groove 308. The locking housing 304 is moved axially towards the socket device 4. At this time, the locking housing 304 is located outside the locking member 401 and can limit the locking member 401.

[0035] In this embodiment, the socket device 4 includes a female connector, which includes an inner ring portion I 403 and an outer ring portion I 402. The inner ring portion I 403 is inserted into the outer ring portion I 402 and forms an annular gap I with the outer ring portion I 402. The socket device 4 also includes a connecting base 404, which is fixed to the generator controller assembly 1 (the connecting base 404 is fixed to the generator controller assembly 1 by bolts). The inner ring portion I 403 and the outer ring portion I 402 are hollow cylindrical structures. During assembly, the inner ring portion I 403 is inserted into the outer ring portion I 402 and forms an annular gap I with the outer ring portion.

[0036] The plug device 3 includes a male connector that can be plugged into the female connector. The male connector includes an inner core 307 and an outer ring 306. The inner core 307 is inserted into the outer ring 306 and forms an annular gap 2 with the outer ring 306. The outer ring 306 is a hollow cylindrical structure, and the inner core can be a hollow cylindrical structure or a solid structure.

[0037] In use, the inner core 307 is inserted into the inner ring portion I 403 and the outer ring portion II 306 is located in the annular gap I; during assembly and connection, the inner core 307 is inserted into the inner ring portion I 403, while the outer ring portion II 306 is located in the annular gap I.

[0038] In this embodiment, the outer ring portion I 402 is provided with a receiving groove for accommodating the ball. The diameter of the outer opening of the receiving groove is smaller than the diameter of the ball. When the ball is placed in the receiving groove, the inner ring portion I 403 can limit the ball. The receiving groove has openings at both ends. The diameter of the outer opening of the receiving groove is smaller than the diameter of the ball. The diameter of the inner opening of the receiving groove (i.e., the side near the inner ring portion I 403) is the same as or slightly larger than the diameter of the ball. During assembly, the ball is placed into the receiving groove through the inner opening. Since the diameter of the outer opening of the receiving groove is smaller than the diameter of the ball, the ball can be limited when it is placed in the receiving groove to prevent it from falling out of the outer opening. At the same time, after the ball is placed in the receiving groove, the inner ring portion I 403 is inserted into the outer ring portion I 402 to limit the ball internally. That is, the diameter of the annular gap I is smaller than the diameter of the ball, thereby preventing the ball from rolling out through the inner opening of the receiving groove.

[0039] The locking groove 308 is disposed on the outer ring portion II 306. The outer surface of the outer ring portion II 306 forms a stepped structure. The inner surface of the locking housing 304 is provided with a limiting protrusion I 3041. The outer surface of the outer ring portion II 306 is also provided with a limiting protrusion II 3061. The locking housing 304 is sleeved on the outer ring portion II 306, and an elastic element receiving cavity is formed between the limiting protrusion I 3041 and the limiting protrusion II 3061. An elastic element 305 is disposed in the elastic element receiving cavity and correspondingly connected to the limiting protrusion I 3041 and the limiting protrusion II 3061. The limiting protrusion II 3061 is used to apply an elastic force to the locking housing 304; the inner surface of the locking housing 304 is provided with the limiting protrusion I 3041, and the outer surface of the outer ring II 306 is provided with the limiting protrusion II 3061. When the locking housing 304 is assembled with the outer ring II 306, an elastic element receiving cavity is formed between the limiting protrusion I 3041 and the limiting protrusion II 3061. At the same time, the elastic element 305 is disposed in the elastic element receiving cavity and is respectively connected to the limiting protrusion I 3041 and the limiting protrusion II 3061, so that the locking housing 304 can move axially.

[0040] In this embodiment, a limiting member 310 is also included. The limiting member 310 is disposed on the inner side of the locking housing 304 and is used to cooperate with the limiting protrusion II 3061 to axially limit the locking housing 304. The limiting member 310 can be a limiting retaining ring or the like. The limiting member 310 is disposed on the inner surface of the locking housing 304 and can cooperate with the limiting protrusion II 3061. When the locking housing 304 moves axially toward the socket device 4, the limiting protrusion II 3061 can limit the limiting member 310 to prevent the locking housing 304 from disengaging from the outer ring II 306.

[0041] In this embodiment, the limiting component includes a limiting clamp 303, which has an opening. The outer ring portion II 306 has a limiting ring groove 309 that is adapted to the limiting clamp 303. The limiting ring groove 309 is located at one end of the locking housing 304 away from the socket device 4. The limiting clamp 303 can be engaged with the limiting ring groove 309 to limit the locking housing 304 when the locking member 401 is engaged with the locking groove 308.

[0042] The limiting assembly also includes an installation ring 301 and a connecting piece 302 that connects the limiting clamp 303 and the installation ring 301. The installation ring 301 is sleeved on the plug device 3 and connected to the limiting clamp 303 through the connecting piece 302. The connecting piece 302 can be a connecting rope, etc. The installation ring 301 has a ring structure, and the limiting clamp 303 has a ring structure with an opening. In use, the installation ring 301 is first sleeved on the plug device 3, and one end of the connecting piece 302 is connected to the limiting clamp 303. When the plug device 3 is inserted into the socket device 4, the limiting clamp 303 can be engaged with the limiting ring groove 309 through the opening. The limiting ring groove 309 is located at the end of the locking housing 304 away from the socket device 4 (i.e., on the side of the limiting protrusion II 3061 away from the socket device 4), thereby axially limiting the locking housing 304. When the locking component 401 engages with the locking groove 308, the limiting clamp 303 can engage with the limiting ring groove 309. By setting the limiting component, a double locking structure is formed. During assembly, the operator can judge whether there is a loose connection by whether the limiting clamp 303 engages with the limiting ring groove 309. When the limiting clamp 303 can engage with the limiting ring groove 309, there is no loose connection, which can reduce the risk of loosening at the connection and ensure the reliability and durability of the connection between the plug device 3 and the socket device 4. At the same time, by limiting the locking housing 304 with the limiting clamp 303, the risk of power degradation or power interruption caused by the failure of the elastic component 305 can be avoided. The installation ring 301 is sleeved on the plug device 3 and connected to the limiting clamp 303 through the connector 302, which can prevent the limiting clamp 303 from being lost.

[0043] In this embodiment, the anti-disengagement connector further includes a sealing element 311. The sealing element 311 is sleeved on the outer ring portion II 306 and located on the side of the limiting protrusion I 6041 near the socket device 4. The sealing element 311 is a rubber gasket. When the plug device 3 is inserted into the socket device 4, the sealing element 311 is located at the end of the limiting protrusion I 3041 (i.e., the end near the socket device 4), which can prevent water from entering the elastic element receiving cavity and affecting the service life of the elastic element 305.

[0044] The anti-disconnect connector is used for three-phase connection of the generator. The plug device 3 is the three-phase connection end, the socket device 4 is the electrical control terminal block, and the elastic element 305 is a spring. The electrical control terminal block is set on the generator controller assembly 1. There are three female and three male connection ends. The three-phase wire 2 is connected to the three female connection ends through the three male connection ends. When in use, the three-phase wire 2 connects the generator's electrical control and motor.

[0045] The present invention relates to a vehicle, which includes a powertrain, and the powertrain includes the aforementioned anti-disengagement connector.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A connector for preventing disconnection, characterized by: The plug device, the socket device, the locking assembly and the limiting assembly are included. The locking assembly is used to lock the plug device and the socket device when the plug device and the socket device are plugged into place. The limiting assembly is used to limit the locking assembly and the plug device or the socket device.

2. The anti-disconnect connector of claim 1, wherein: The locking assembly includes a locking member arranged on the socket device. The locking member can be driven to move radially to lock or unlock the plug device.

3. The anti-disconnect connector of claim 2, wherein: The locking member is a plurality of balls. The plug device is provided with a plurality of locking grooves matched with the balls. The locking member can be driven to engage in the locking grooves to form locking or driven to leave the locking grooves to form unlocking.

4. The anti-disconnect connector of claim 3, wherein: The locking assembly further includes a locking housing arranged on the plug device. The locking housing can be driven to move axially and locked to limit the locking member when the locking member engages in the locking grooves.

5. The anti-disconnect connector of claim 4, wherein: The socket device includes a female end. The female end includes an inner ring part I and an outer ring part I. The inner ring part I is inserted into the outer ring part I to form an annular gap I. The plug device includes a male end which can be plugged into the female end. The male end includes an inner core part and an outer ring part II. The inner core part is inserted into the outer ring part II to form an annular gap II. In use, the inner core part is inserted into the inner ring part I so that the outer ring part II is located in the annular gap I.

6. The anti-disconnect connector of claim 5, wherein: The outer ring part I is provided with a containing groove for containing the balls. The outer side of the containing groove is opened with a diameter smaller than that of the balls. When the balls are placed in the containing groove, the inner ring part I can limit the balls. The locking grooves are arranged on the outer ring part II. The outer surface of the outer ring part II forms a stepped structure. The inner surface of the locking housing is provided with a limiting protrusion I. The outer surface of the outer ring part II is provided with a limiting protrusion II. The locking housing is sleeved on the outer ring part II. An elastic member is arranged in an elastic member containing cavity between the limiting protrusion I and the limiting protrusion II and correspondingly connected to the limiting protrusion I and the limiting protrusion II to apply an elastic force to the locking housing.

7. The anti-disconnect connector of claim 6, wherein: The limiting assembly further includes a limiting member arranged on the inner side of the locking housing to cooperate with the limiting protrusion II to axially limit the locking housing.

8. The anti-disconnect connector of claim 5, wherein: The limiting assembly includes a limiting clamp provided with an opening. The outer ring part II is provided with a limiting ring groove matched with the limiting clamp. The limiting ring groove is arranged on the end of the locking housing away from the socket device. The limiting clamp can engage in the limiting ring groove to limit the locking housing when the locking member engages in the locking grooves. The limiting assembly further includes a mounting ring and a connecting member connecting the limiting clamp and the mounting ring. The mounting ring is sleeved on the plug device and connected to the limiting clamp through the connecting member.

9. The anti-disconnect connector of claim 6, wherein: The anti-disconnection connector further includes a sealing member sleeved on the outer ring part II and located on the side of the limiting protrusion I close to the socket device. The anti-disengagement connector is used for three-phase line connection of a generator, wherein the plug device is a three-phase line connection end, the socket device is an electric control terminal block, and the elastic member is a spring.

10. An automobile characterized by comprising: The anti-disengagement connector is used for three-phase line connection of a generator, wherein the plug device is a three-phase line connection end, the socket device is an electric control terminal block, and the elastic member is a spring.