New energy automobile rear motor cable connector

Abstract

The utility model belongs to the technical field of new energy automobiles, and discloses a new energy automobile rear motor cable connector which comprises a connector, a cable is arranged in the connector, the connector comprises a male end shell and a female end shell, and the male end shell and the female end shell are detachably connected through a buckle type locking structure. The buckle type locking structure comprises elastic pieces symmetrically installed on the male end shell, and a penetrating locking groove and a locking groove which are formed in the female end shell. The male end shell and the female end shell are both provided with cylindrical limiters, the cylindrical limiters are located at the joint of the connector and the cable, each cylindrical limiter comprises an external thread interface installed on the male end shell and the female end shell and a limiting cylinder connected to the external thread interface in a threaded fit mode, and the cable penetrates through the limiting cylinders. According to the utility model, the terminals can be prevented from loosening so as to improve the anti-vibration performance, the joint of the cable and the connector can be prevented from being fractured due to external force, and the concentrated stress on the connection point during bending or pulling can be reduced at the same time.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a cable connector for the rear motor of a new energy vehicle. Background Technology

[0002] The rear motor cable connector is a key electrical interface component used to connect the drive motor of a new energy vehicle to a high-voltage cable. It mainly undertakes the functions of power transmission, signal control and protection. It needs to have the characteristics of high voltage / high current carrying capacity, multiple protection design, high temperature resistance and durability.

[0003] Currently, the rear motor cable connectors in new energy vehicles generally adopt a direct-insertion electrical connection structure, which has the following drawbacks:

[0004] 1) Vehicle vibration can easily cause terminals to loosen, leading to poor contact;

[0005] 2) The connection between the high-voltage cable and the connector lacks mechanical interlocking, which poses a risk of accidental separation. Therefore, we propose a new type of rear motor cable connector for new energy vehicles. Utility Model Content

[0006] In view of the problems of existing rear motor cable connectors, such as vehicle vibration causing terminals to loosen and resulting in poor contact, and the lack of mechanical interlocking at the connection between the high-voltage cable and the connector, which poses a risk of accidental separation, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a cable connector for the rear motor of a new energy vehicle. Its purpose is to prevent the terminals from loosening by setting a snap-lock structure and a cylindrical limiter, thereby improving the vibration resistance performance. At the same time, it can prevent the cable and connector joint from breaking due to external force, and reduce the concentrated stress on the connection point when bending or pulling.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A rear motor cable connector for a new energy vehicle includes a connector with a cable inside. The connector includes a male end housing and a female end housing. The male end housing and the female end housing are detachably connected by a snap-locking structure. The snap-locking structure includes elastic elements symmetrically installed on the male end housing and a through locking groove and a locking groove formed on the female end housing.

[0010] Both the male end housing and the female end housing are provided with a cylindrical limiter, and the cylindrical limiter is located at the junction of the connector and the cable. The cylindrical limiter includes an external threaded interface installed on the male end housing and the female end housing and a limiter cylinder threadedly connected to the external threaded interface. The cable passes through the limiter cylinder.

[0011] As a technical solution of the new energy vehicle rear motor cable connector of this utility model, wherein: a terminal is installed at the end of the male end housing away from the external thread interface, and a socket corresponding to the terminal is opened at the end of the female end housing away from the external thread interface, and the socket is adapted to the terminal.

[0012] As a technical solution of the new energy vehicle rear motor cable connector of this utility model, a sealing ring is sleeved at the connection between the terminal and the male end housing. The sealing ring is made of TPE material. A sealing ring is installed in the sealing groove on the sealing ring. The end of the plug is provided with a sealing groove corresponding to the sealing ring, and the sealing groove is adapted to the sealing ring.

[0013] As a technical solution of the new energy vehicle rear motor cable connector of this utility model, the elastic element is located at the end of the male end housing away from the external thread interface, the through locking groove and the locking groove are both located at one end of the external thread interface, and the locking groove is located on the rear side of the through locking groove.

[0014] As a technical solution of the new energy vehicle rear motor cable connector of this utility model, the elastic element has an integrally formed locking tongue. When it is in the locked state, the elastic element deforms and enters the locking groove through the through locking groove, and is locked in the locking groove by the locking tongue. The male end housing is detachably installed on the female end housing through the elastic element, the locking tongue, the through locking groove and the locking groove.

[0015] As a technical solution of the new energy vehicle rear motor cable connector of this utility model, the outer surface of the limiting cylinder is provided with a plurality of anti-slip textures, and the plurality of anti-slip textures are equidistantly arranged along the axial / circumferential direction of the limiting cylinder.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. This utility model assembles the male end housing onto the female end housing, at which point the terminal is inserted into the socket. The sealing ring drives the sealing ring to assemble into the sealing groove, and the sealing ring deforms and makes tight contact with the inner wall of the sealing groove. At the same time, the elastic element deforms and enters the locking groove through the through-locking groove, and the elastic element elastically resets. The locking tongue locks in the locking groove to prevent the terminal from loosening. It can also improve the vibration resistance of the connector. If it is necessary to disassemble the male end housing and the female end housing, simply press the locking tongue and pull the male end housing out of the female end housing. This makes it easy to disassemble and assemble the connector, and the operation is simple and quick. It can also prevent the terminal from loosening and improve the vibration resistance of the connector.

[0018] 2. This utility model involves passing cables through a limiting cylinder and installing one end of the cable onto the male and female end housings. The limiting cylinder is then spiraled along the outer surface of the external threaded interface until it is installed at the junction of the connector and the cable. When the cable is subjected to external force, the spiral structure disperses the force on the cable, preventing breakage at the connector junction due to external force. It also reduces concentrated stress at the connection point during bending or pulling. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the assembly and connection structure of the male end shell and the cylindrical limiter of this utility model.

[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 This is a schematic diagram of the assembly and connection structure of the female end shell and the cylindrical limiter of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 11. Male end housing; 111. Terminal; 112. Sealing ring; 113. Sealing ring; 12. Female end housing; 121. Sealing groove; 122. Socket; 2. Cable; 3. External thread interface; 4. Limiting cylinder; 401. Anti-slip texture; 5. Elastic element; 501. Locking tongue; 6. Through lock groove; 7. Locking groove. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1-4A new energy vehicle rear motor cable connector is provided. The new energy vehicle rear motor cable connector includes a connector, a cable 2 is provided inside the connector, the connector includes a male end housing 11 and a female end housing 12, the male end housing 11 and the female end housing 12 are detachably connected by a snap-locking structure, the snap-locking structure includes elastic elements 5 symmetrically installed on the male end housing 11 and a through locking groove 6 and a locking groove 7 opened on the female end housing 12.

[0028] Both the male end housing 11 and the female end housing 12 are provided with cylindrical limiters, and the cylindrical limiters are located at the junction of the connector and the cable 2. The cylindrical limiter includes an external threaded interface 3 installed on the male end housing 11 and the female end housing 12 and a limit cylinder 4 threadedly connected to the external threaded interface 3. The cable 2 passes through the limit cylinder 4.

[0029] Reference Figure 1 , Figure 2 as well as Figure 4 The male end housing 11 is equipped with a terminal 111 at the end away from the external thread interface 3, and the female end housing 12 is provided with a socket 122 corresponding to the terminal 111 at the end away from the external thread interface 3, and the socket 122 is adapted to the terminal 111 so that the terminal 111 can be inserted into the socket 122.

[0030] Reference Figure 1 , Figure 3 as well as Figure 4 A sealing ring 112 is fitted at the connection between the terminal 111 and the male housing 11. The sealing ring 112 is made of TPE material. A sealing ring 113 is installed in the sealing groove on the sealing ring 112. The end of the socket 122 is provided with a sealing groove 121 corresponding to the sealing ring 112. The sealing groove 121 is adapted to the sealing ring 112 to improve its sealing performance.

[0031] Reference Figures 1-4 The elastic element 5 is located at the end of the male end housing 11 away from the external thread interface 3. The through lock groove 6 and the locking groove 7 are both located at the end of the external thread interface 3, and the locking groove 7 is located on the rear side of the through lock groove 6, so that the elastic element 5 can be locked in the locking groove 7 through the through lock groove 6.

[0032] Reference Figure 1 and Figure 3 The elastic element 5 has an integrally formed locking tongue 501. When it is in the locked state, the elastic element 5 deforms and enters the locking groove 7 through the through locking groove 6, and is locked in the locking groove 7 by the locking tongue 501. The male end housing 11 is detachably installed on the female end housing 12 through the elastic element 5, locking tongue 501, through locking groove 6 and locking groove 7, so as to facilitate the installation and removal of the connector and the operation is simple and quick.

[0033] Reference Figure 1 , Figure 2as well as Figure 4 The outer surface of the limiting cylinder 4 is provided with a number of anti-slip textures 401, and the number of anti-slip textures 401 are equidistantly arranged along the axial / circumferential direction of the limiting cylinder 4, so as to increase the friction force.

[0034] The working principle of this utility model is as follows: By passing the cable 2 through the limiting cylinder 4 respectively, and installing one end of the cable 2 on the male end housing 11 and the female end housing 12, the spiral limiting cylinder 4 is then spiraled. At this time, the limiting cylinder 4 moves along the outer surface of the external thread interface 3 until the cylindrical limiter is installed at the joint between the connector and the cable 2. When the cable 2 is affected by external force, the spiral structure can disperse the force on the cable 2 to avoid the cable 2 from breaking at the joint between the connector and the cable due to external force. At the same time, it can reduce the concentrated stress on the connection point when bending or pulling, thereby avoiding the cable 2 from breaking at the joint between the connector and the cable due to external force and reducing the concentrated stress on the connection point when bending or pulling.

[0035] Next, by assembling the male end housing 11 onto the female end housing 12, the terminal 111 is inserted into the socket 122. The sealing ring 112 drives the sealing ring 113 to be assembled into the sealing groove 121, and the sealing ring 113 deforms and makes tight contact with the inner wall of the sealing groove 121. At the same time, the elastic element 5 deforms and enters the locking groove 7 through the through locking groove 6, and the elastic element 5 elastically resets. The locking tongue 501 is locked in the locking groove 7 to prevent the terminal 111 from loosening. At the same time, it can improve the vibration resistance of the connector. If it is necessary to disassemble the male end housing 11 and the female end housing 12, simply press the locking tongue 501 and pull the male end housing 11 out of the female end housing 12. This makes it convenient to disassemble and assemble the connector, and the operation is simple and quick. It can also prevent the terminal 111 from loosening and improve the vibration resistance of the connector.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution 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 rear motor cable connector for a new energy vehicle, comprising a connector, wherein a cable (2) is provided inside the connector, characterized in that: The connector includes a male end housing (11) and a female end housing (12). The male end housing (11) and the female end housing (12) are detachably connected by a snap-locking structure. The snap-locking structure includes an elastic element (5) symmetrically installed on the male end housing (11) and a through locking groove (6) and a locking groove (7) opened on the female end housing (12). Both the male end housing (11) and the female end housing (12) are provided with cylindrical limiters, and the cylindrical limiters are located at the junction of the connector and the cable (2). The cylindrical limiter includes an external threaded interface (3) installed on the male end housing (11) and the female end housing (12) and a limiter cylinder (4) threadedly connected to the external threaded interface (3). The cable (2) passes through the limiter cylinder (4).

2. The new energy vehicle rear motor cable connector according to claim 1, characterized in that: The male end housing (11) has a terminal (111) installed at one end away from the external thread interface (3), and the female end housing (12) has a socket (122) corresponding to the terminal (111) at one end away from the external thread interface (3), and the socket (122) is adapted to the terminal (111).

3. The new energy vehicle rear motor cable connector according to claim 2, characterized in that: A sealing ring (112) is fitted at the connection between the terminal (111) and the male end housing (11). The sealing ring (112) is made of TPE material. A sealing ring (113) is installed in the sealing groove on the sealing ring (112). The end of the socket (122) is provided with a sealing groove (121) corresponding to the sealing ring (112), and the sealing groove (121) is adapted to the sealing ring (112).

4. The new energy vehicle rear motor cable connector according to claim 1, characterized in that: The elastic element (5) is located at the end of the male end housing (11) away from the external thread interface (3). The through lock groove (6) and the locking groove (7) are both located at one end of the external thread interface (3), and the locking groove (7) is located on the rear side of the through lock groove (6).

5. The new energy vehicle rear motor cable connector according to claim 4, characterized in that: The elastic element (5) has an integrally formed locking tongue (501). When it is in the locked state, the elastic element (5) deforms and enters the locking groove (7) through the through locking groove (6), and is locked in the locking groove (7) by the locking tongue (501). The male end housing (11) is detachably installed on the female end housing (12) through the elastic element (5), the locking tongue (501), the through locking groove (6) and the locking groove (7).

6. The new energy vehicle rear motor cable connector according to claim 1, characterized in that: The outer surface of the limiting cylinder (4) is provided with a plurality of anti-slip textures (401), and the plurality of anti-slip textures (401) are equidistantly arranged along the axial / circumferential direction of the limiting cylinder (4).

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