Connector tail cover, connector and vehicle

Abstract

The utility model provides a connector tail cover, a connector and a vehicle. The connector tail cover comprises a substrate, the substrate is provided with at least one wire duct, and the wire duct is communicated with the outside of the connector tail cover through a wire duct opening, so that a cable is placed into the wire duct through the wire duct opening. According to the connector tail cover provided by the invention, the wire slot is communicated with the external space, so that the tail cover can be used for installing a cable into the tail cover in a side buckling manner at the last process, and the tail cover is pushed forwards to be assembled with the connector finally, so that the assembly of the tail cover is not influenced by the assembly sequence. And the tail cover can be independently detached, so that the convenience of the process is improved, the maintainability of the connector can be improved, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of electrical transmission technology, and in particular to a connector tail cover, a connector and a vehicle. Background Art

[0002] The demand for high-voltage circuits in new energy vehicles is getting higher and higher, and the application of high-voltage cable assemblies has become a rigid demand for new energy vehicles. The various components in new energy vehicles mainly rely on connectors and wires to achieve electrical connection. The connector tail cover is an important component in the connector assembly. The connector tail cover usually has the function of limiting the cable and other components inside the connector.

[0003] In the prior art, the connector tail cover is mainly provided with a through hole, and the cable passes through the through hole of the tail cover into the connector to achieve electrical connection. However, the way of providing the through hole requires the connector to be assembled according to a certain order. In actual production, this form requires the cable to be passed through the tail cover in advance, and then the shielding and terminals are crimped. This process sequence makes it necessary to pass multiple cables through the tail cover before the subsequent process is carried out during the production of multi-core connectors, which causes many inconveniences in the subsequent production operations; in addition, once the subsequent process of this type of tail cover is completed, the components cannot be repaired, and the entire assembly needs to be replaced, resulting in cost losses. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of this application does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] One object of the present application is to provide a connector tail cover that at least solves the above-mentioned problem.

[0006] According to the connector tail cover of the first aspect of the present application, the connector tail cover includes a substrate, the substrate is provided with at least one wire groove, the wire groove is connected to the outside of the connector tail cover through the wire groove opening, and the cable is placed in the wire groove through the wire groove opening. In the prior art, the connector tail cover is suitable for the passage of cables mainly relying on the through holes provided on the connector tail cover, and the cables extend into the interior of the connector through the through holes on the aforementioned connector tail cover to be electrically connected to other components such as terminals. The utility model provides a wire groove on the connector tail cover that is connected to the outside of the connector tail cover, and the tail cover can be installed into the tail cover in the form of a side buckle at the end of the process, and the tail cover is pushed forward for the final assembly with the connector, so that the assembly of the tail cover will not be affected by the assembly order. The tail cover can be disassembled independently, which not only improves the convenience of the process, but also improves the maintainability of the connector and reduces costs.

[0007] Optionally, the cable trough includes a receiving portion and a connecting portion, wherein the receiving portion is arranged away from one end of the cable trough opening, the connecting portion connects the receiving portion and the cable trough opening, and the shape of the receiving portion is suitable for matching with the cable to accommodate the cable.

[0008] Optionally, the distance between the two ends of the connecting portion is smaller than the inner diameter of the accommodating portion, so as to ensure that the cable can be clamped in the cable trough after being placed in the cable trough.

[0009] Preferably, the connector tail cover is provided with a plurality of wire grooves, each wire groove opening is connected to a plurality of the aforementioned wire grooves, the plurality of the aforementioned wire grooves extend in a direction away from the wire groove opening, and the angle between the wire entry directions of two adjacent wire grooves is less than 180 degrees.

[0010] Preferably, the connector tail cover is provided with four wire slots, each wire slot opening is connected to two wire slots, and the two wire slot openings are arranged on two opposite sides of the connector tail cover.

[0011] Optionally, the connector tail cover further includes an arc-shaped protrusion fixed vertically on the substrate, and the arc-shaped protrusion is arranged close to the wire groove.

[0012] Optionally, the connector tail cover further comprises a first reinforcing rib, the two ends of which are respectively connected to the minimum distance between the two arc-shaped protrusions. Optionally, the wire trough and the accommodating portion are provided with steps at the edges to ensure that the wire trough and the accommodating portion can be deformed when the cable is installed.

[0013] Optionally, the connector tail cover further includes a second reinforcing rib, and two ends of the second reinforcing rib are respectively connected to one of the first reinforcing ribs.

[0014] Optionally, the connector tail cover further includes a third reinforcing rib, and two ends of the third reinforcing rib are connected to the maximum distance between the two arc-shaped protrusions.

[0015] According to the second aspect of the present application, a connector is provided, comprising a terminal, a cable, a sealing ring, a limiting sleeve, a connector housing and the connector tail cover described above. The terminal is fixedly connected to the cable; the cable is passed through the wire groove of the connector tail cover; the cable is passed through the limiting sleeve to limit the cable; the connector tail cover is clamped with the clamping part of the connector housing through the buckle; the limiting sleeve is arranged between the connector tail cover and the connector housing; the terminal is passed through the through hole of the connector housing; the sealing ring is fixedly connected to the connector housing.

[0016] According to a third aspect of the present application, a vehicle is provided, comprising a battery pack, a distribution box, a solid conductor and the connector described above, wherein the connectors are respectively arranged on the battery pack and the distribution box, and a plurality of connectors are connected to the solid conductor to realize electrical connection between the battery pack and the distribution box.

[0017] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings of the embodiments of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0019] Figure 1 is a top view of a connector tail cover of a preferred embodiment of the present application;

[0020] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the middle connector tail cover;

[0021] Figure 3 Yes Figure 1 A three-dimensional schematic diagram of a preferred connector of the connector tail cover;

[0022] Description of Reference Numerals

[0023] 1. Connector tail cover; 11. Wire slot; 12. Accommodation part; 13. Reinforcement rib; 14. Buckle; 2. Terminal; 3. Connector housing; 4. Cable; 5. Sealing ring. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application embodiments, some technical features well known in the art are not described.

[0025] Herein, ordinal numbers such as “first” and “second” cited in the present application are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of the “second component”, and the term “second component” itself does not imply the existence of the “first component”.

[0026] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0027] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0028] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0029] Figure 1 and Figure 2 A connector tail cover 1 according to the first aspect of the utility model application is shown, the connector tail cover 1 includes a substrate, and the connector tail cover 1 is provided with at least one wire groove 11 on the substrate. The wire groove is connected to the external space of the connector tail cover 1 through the wire groove opening, so that the cable 4 can be placed into the wire groove 11 through the wire groove opening.

[0030] In the related art, the function of the connector tail cover is mainly to ensure the limiting effect on the parts inside the connector through the connection between the connector tail cover and the connector housing. In the related art, in order to ensure the insertion of the cable, the connector tail cover is usually provided with a through hole to facilitate the insertion and assembly of the cable. However, in the actual production process, the cable must be passed through the tail cover in advance, and then the shielding and terminals must be crimped. This process sequence makes it necessary for multiple cables to pass through the tail cover during the production of multi-core connectors, and then the subsequent processes are carried out, which makes the subsequent production operations inconvenient. In addition, once the subsequent process of this type of tail cover is completed, the parts cannot be repaired, and the entire assembly needs to be replaced, resulting in unnecessary cost losses. The difference between the utility model and the related art is that the utility model is provided with a wire groove 11 connected to the external space on the connector tail cover 1, so that other connector parts can be produced and assembled first in the production process. In the final production process, the cable 4 is installed into the connector tail cover 1 through the wire groove 11 and then the connector tail cover 1 is connected to the connector housing to complete the entire connector assembly process, rather than placing the connector tail cover installation process in the first step of the entire connector installation process; at the same time, if the connector tail cover is damaged during use, the connector tail cover can be directly disassembled and replaced, rather than disassembling the entire connector components and then replacing the connector tail cover, thereby reducing the maintenance cost of the connector.

[0031] Furthermore, in order to ensure a good fit between the cable and the connector tail cover 1, the preferred solution of the wire trough of the present application includes a accommodating portion 12 and a connecting portion. The accommodating portion 12 is arranged at one end of the wire trough away from the opening, and the connecting portion connects the accommodating portion 12 and the wire trough opening. The shape of the accommodating portion 12 is suitable for matching with the cable to accommodate the cable, thereby reducing the stress between the cable and the wire trough 11 and increasing the service life of the connector tail cover 1.

[0032] Furthermore, the distance between the two ends of the connecting portion is smaller than the inner diameter of the accommodating portion 12, thereby ensuring that when the cable is installed into the accommodating portion 12 through the cable trough 11, the cable can be retained in the accommodating portion 12, thereby playing a certain fixing role for the cable.

[0033] According to a preferred embodiment of the present application, in order to cooperate with a four-core connector, the connector tail cover 1 of the preferred embodiment of the present application is provided with four wire grooves 11, and each wire groove opening is connected to two wire grooves 11, and the two wire groove openings are arranged on opposite sides of the connector tail cover 1, and two cables are placed in the wire groove opening on each side.

[0034] Furthermore, the cable duct 11 extends in a direction away from the cable duct opening, and the angle between the cable entry directions of two adjacent cable ducts is less than 180 degrees, so as to ensure that the cables have sufficient assembly space when being assembled.

[0035] Furthermore, the connector tail cover 1 also includes an arc-shaped protrusion fixed on the substrate, and the arc-shaped protrusion is arranged close to the wire groove. When the cable 4 is assembled, the installation guidance of the cable 4 can be achieved through the arc-shaped protrusion.

[0036] Furthermore, reinforcing ribs 13 are provided between the accommodating portions 12 to ensure the strength of the connector tail cover 1 after assembly.

[0037] Specifically, the aforementioned reinforcing rib 13 includes a first reinforcing rib, a second reinforcing rib and a third reinforcing rib. First, the first reinforcing rib is arranged at the point where the distance between the above-mentioned arc-shaped protrusions at both ends is the smallest, so as to increase the stress strength of the part between the relatively arranged arc-shaped protrusions; secondly, the two ends of the aforementioned second reinforcing rib are respectively connected to one of the aforementioned first reinforcing ribs to ensure the stress strength along the direction of the second reinforcing rib; thirdly, the two ends of the aforementioned third reinforcing rib are connected to the point where the distance between the arc-shaped protrusions at both ends is the largest, so as to assist in the reinforcement strength in this direction.

[0038] Furthermore, a step structure is provided at the arc-shaped raised edge of the wire slot 11 and the receiving portion 12. Since the material of the connector tail cover 1 is plastic, the strength material at the step position is thinner, so that the part is more easily deformed. The steps are provided at the edge of the wire slot 11 and the receiving portion 12 to ensure that the cable can be assembled into the wire slot and the receiving portion 12 more easily during assembly.

[0039] Furthermore, if Figure 2 As shown, the connector tail cover 1 is provided with a buckle 14 on the side, and the buckle 14 is spaced apart from the wire slot opening. As a preferred embodiment of the present application, this embodiment sets the buckle 14 at the other two side relative positions of the wire slot opening interval to ensure that the connector tail cover 1 can be snapped onto the connector housing to fix the connector tail cover 1.

[0040] Figure 3 A connector according to the second aspect of the present application is shown.

[0041] According to a second aspect of the present application, a connector is provided, including a terminal 2 , a connector housing 3 , a cable 4 and a sealing ring 5 .

[0042] Specifically, the terminal 2 is fixedly connected to one end of the cable 4, and the connection method between the terminal 2 and the cable can be welding. The end where the terminal 2 is connected to the cable 4 is a flat structure, and the cable 4 and the terminal 2 are ultrasonically welded to achieve a fixed connection between the terminal 2 and the cable 4.

[0043] Furthermore, a limiting sleeve is provided at one end of the cable 4 close to the terminal, and the inner surface of the limiting sleeve is interference fit with the outer surface of the cable, so that the cable 4 is limited by the friction between the limiting sleeve and the cable 4.

[0044] Furthermore, the connector tail cover 1 is engaged with the engaging portion provided on the connector housing 3 by means of the snaps provided on the side, thereby ensuring the fixation of the connector housing 3 and the connector tail cover 1. Due to the interference fit between the cable 4 and the limiting sleeve, the connector tail cover can indirectly limit the cable 4 by limiting the limiting sleeve.

[0045] Furthermore, the connector housing 3 is provided with through holes, so that the terminals 2 and the cables 4 can be electrically connected to other connector components through the through holes.

[0046] Furthermore, an annular groove is provided on the connector housing 3, and the annular groove can be interference fit with the sealing ring 5, thereby ensuring that the sealing ring 5 can be firmly assembled on the connector housing 3, ensuring that when the connector is connected to the box, a waterproof and dustproof effect can be achieved between the connector and the box.

[0047] Further, according to an embodiment of the present invention, mounting holes are provided at the four corners of the connector housing 3, and bolts can be connected with the box body bolts through the aforementioned mounting holes, thereby fixing the connector on the box body.

[0048] According to a third aspect of the present application, a vehicle is provided, comprising a battery pack, a distribution box, a solid conductor and the connector described above, wherein the connector is arranged on the battery pack and the distribution box, and a plurality of connector assemblies are connected to the solid conductor to realize electrical connection between the battery pack and the distribution box.

[0049] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A connector tail cover, characterized in that: The connector tail cover comprises a base plate, the base plate is provided with at least one wire groove, the wire groove is communicated with the outside of the connector tail cover through a wire groove opening, and a cable is placed into the wire groove through the wire groove opening.

2. The connector tail cover according to claim 1, characterized in that: The wire trough comprises a receiving portion and a connecting portion, wherein the receiving portion is arranged away from one end of the wire trough opening, and the connecting portion connects the receiving portion and the wire trough opening, and the shape of the receiving portion is suitable for matching with the cable to receive the cable.

3. The connector tail cover according to claim 2, characterized in that: The distance between two ends of the communication portion is smaller than the inner diameter of the accommodation portion.

4. The connector tail cover according to claim 2, characterized in that: The connector tail cover is provided with a plurality of wire grooves, each of the wire groove openings is connected to a plurality of the wire grooves, the plurality of wire grooves extend away from the wire groove openings, and the angle between the wire entry directions of two adjacent wire grooves is less than 180 degrees.

5. The connector tail cover according to claim 4, characterized in that: The connector tail cover is provided with four wire grooves, each wire groove opening is connected to two wire grooves, and the two wire groove openings are arranged on two opposite sides of the connector tail cover.

6. The connector tail cover according to claim 1, characterized in that: The connector tail cover also includes an arc-shaped protrusion vertically fixed on the base plate, and the arc-shaped protrusion is arranged close to the wire groove.

7. The connector tail cover according to claim 6, characterized in that: The connector tail cover also includes a first reinforcing rib, and two ends of the first reinforcing rib are respectively connected to the minimum distance between the two arc-shaped protrusions.

8. The connector tail cover according to claim 7, characterized in that: The connector tail cover also includes a second reinforcing rib, and two ends of the second reinforcing rib are respectively connected to one of the first reinforcing ribs.

9. The connector tail cover according to claim 8, characterized in that: The connector tail cover also includes a third reinforcing rib, and two ends of the third reinforcing rib are connected to the maximum distance between the two arc-shaped protrusions.

10. A connector, characterized in that: include: terminal; Cables; A connector housing, wherein the connector housing is provided with a through hole and a clamping portion; as well as According to any one of claims 1 to 8, the connector tail cover is provided with a buckle on the side, wherein; The terminal is fixedly connected to the cable; the cable is passed through the wire groove of the connector tail cover; the connector tail cover is clamped with the clamping part of the connector shell through the buckle; the terminal is passed through the through hole of the connector shell.

11. The connector according to claim 10, characterized in that: Also includes: Sealing ring; Limit sleeve; The cable is passed through the limiting sleeve to limit the position of the cable; The limiting sleeve is arranged between the connector tail cover and the connector housing; the sealing ring is fixedly connected to the connector housing.

12. A vehicle, characterized in that: include: Battery pack; Distribution box; Solid conductor; as well as According to the connector of claim 11, a plurality of said connectors are respectively arranged on the battery pack and / or the distribution box and connected to the solid conductor to realize the electrical connection between the battery pack and / or the distribution box.

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