A connector

Abstract

The present invention relates to a connector. The connector includes a connector housing, in which a conductive member is provided, the conductive member being used for conducting and connecting wires; the conductive member having an exposed end face, the exposed end face being parallel to or inclined with respect to the mounting side face; a conductive bar mounting structure being provided on the exposed end face, for press-fitting the wide face of the corresponding external conductive bar onto the exposed end face, the wide face of the external conductive bar being perpendicular to the thickness direction of the external conductive bar. When the connector is subjected to external pressure, the wide face of the external conductive bar acts as a load-bearing surface, can have a larger contact area, and reduces the pressure at the top pressure point, making it less likely to puncture the corresponding insulating protective member and come into contact with the metal member, thereby avoiding the problem of insulation failure, short circuit, and safety hazard that may easily occur when the connector is squeezed.

Description

Technical Field

[0001] The present invention relates to a connector. Background Art

[0002] Electrical connection technology is widely used in power battery systems. The external electrical connection parts of the battery box must not only meet the reliability of conducting large currents for a long time, but also consider their anti-extrusion capabilities to prevent local deformation after being squeezed, resulting in internal short circuits in the electrical connectors, local burning or fire.

[0003] For example, Chinese patent application number CN208923473U discloses an integrated connector with a two-core plug and a multi-core plug on its integrated base to meet the connector's various functional requirements. The connector also has a conductive bar for fixed connection to an external conductive bar.

[0004] The mounting side of this connector is parallel to the corresponding mounting side wall of the box. During installation, the mounting side is aligned with the corresponding mounting side wall of the box. Existing connectors generally use an L-shaped conductive bar. One side arm of the L-shaped conductive bar is electrically connected to the conductive cable, and the other side arm is a vertical side arm. The vertical side arm is perpendicular to the mounting side of the connector. During installation, the vertical side arm extends into the box and is fixedly connected to the corresponding connecting conductive bar inside the box.

[0005] Since the vertical side arms are arranged perpendicular to the installation side of the connector, when the connector is squeezed, the vertical side arms of the conductive bar will move toward the inside of the box. In serious cases, they will touch the internal components of the box, such as insulating protective parts. Since the vertical side arms are relatively thin as a whole, it is easy to form a large pressure at the top pressure point, and then puncture the corresponding insulating protective parts and directly contact the metal parts, resulting in insulation failure, which is prone to short circuit accidents and poses a major safety hazard. Summary of the Invention

[0006] The object of the present invention is to provide a connector to solve the technical problem in the prior art that the vertical side arms of the L-shaped conductive bar are prone to piercing the internal components of the box when the connector is squeezed.

[0007] The connector of the present invention adopts the following technical solutions:

[0008] A connector, comprising:

[0009] The connector housing has a mounting side surface at the rear side for fixedly pressing and mounting on the box wall of the corresponding box body;

[0010] A conductive member, fixedly disposed in the connector housing, for conducting and connecting the wires;

[0011] The conductive member has an exposed end surface, which is exposed and parallel to or inclined to the installation side surface;

[0012] The conductive bar mounting structure is arranged on the exposed end surface and is used to press the wide surface of the corresponding external conductive bar onto the exposed end surface, wherein the wide surface of the external conductive bar is perpendicular to the thickness direction of the external conductive bar.

[0013] Beneficial effect: A conductive part is provided in the connector, and the conductive part has an exposed end face. A conductive bar mounting structure is provided on the exposed end face, which is used to press the wide surface of the corresponding external conductive bar onto the exposed end face. When the connector is subjected to external pressure, the wide surface of the external conductive bar serves as a load-bearing surface and can have a larger contact area, reducing the pressure at the top pressure point, so that it is not easy to puncture the corresponding insulating protective part and contact the metal part, avoiding the problem of insulation failure, short circuit and safety hazard when the connector is squeezed.

[0014] Furthermore, the conductive member includes two conductive posts, which extend in parallel in the front-to-back direction and are spaced apart in the left-to-right direction, and are used to conductively connect two wires. The rear end faces of the two conductive posts are exposed to form the exposed end faces.

[0015] Beneficial effect: Two conductive posts are set to connect two wires to avoid a single wire from being inconvenient to bend due to its large wire diameter. In addition, the two conductive posts are connected with the external conductive bar to further increase the contact area and withstand greater external pressure.

[0016] Furthermore, the conductive bar mounting structure of the two conductive columns is an external threaded hole or an external stud, which extends axially along the conductive column. Each conductive column has an internal threaded hole or an internal stud for conductive connection with the corresponding wire. The central axis of the external threaded hole or external stud of each conductive column is the first central axis, and the central axis of the internal threaded hole or internal stud of each conductive column is the second central axis. On the same guide column, the first central axis is located on the side of the second central axis facing the other guide column.

[0017] Beneficial effect: On the same guide column, the first center axis is located on the side of the second center axis facing the other guide column, so that the internal threaded hole or internal stud of the conductive column and the external threaded hole or external stud form an eccentric arrangement. When the connecting structure on the external conductive bus is arranged in the width direction, the width dimension of the external conductive bus can be reduced, and it can also adapt to the spacing requirements of the two wires.

[0018] Furthermore, each of the conductive columns includes an inner column and an outer column, which are separately fixed together, the inner threaded hole or inner stud is provided on the inner column, and the outer threaded hole or outer stud is provided on the outer column.

[0019] Beneficial effect: The conductive column adopts a split type, so that the external threaded hole or external stud and the internal threaded hole or internal stud are eccentrically arranged, which can reduce the size of the conductive column and thus reduce the production cost.

[0020] Furthermore, the inner cylinder and the outer cylinder are fixed together by threaded connection.

[0021] Beneficial effects: stable structure and easy installation.

[0022] Furthermore, the radial dimension of the outer cylinder is smaller than the radial dimension of the inner cylinder.

[0023] Beneficial effect: The distance between the two inner cylinders is reduced, and the distance between the two external threaded holes or external studs is closer, which is conducive to reducing the width of the external conductive bar and also reduces the size of the conductive column as a whole.

[0024] Furthermore, the conductive column is cylindrical as a whole, and anti-loosening teeth are provided on the outer circumference of the conductive column, and the anti-loosening teeth are arranged along the circumference of the conductive column.

[0025] Beneficial effect: It prevents the conductive column from being loosened due to stress during assembly and use.

[0026] Furthermore, the anti-loosening teeth are arranged on the conductive column in multiple circles along the axial direction thereof.

[0027] Beneficial effects: Enhance stability and improve anti-loosening effect.

[0028] Furthermore, a clamping side surface is provided on the ring segment where the anti-loosening teeth are located.

[0029] Beneficial effect: The clamping side allows a grasping tool to clamp the conductive column to avoid damage caused by clamping the anti-loosening teeth.

[0030] Furthermore, the connector housing has a mounting hole, the two conductive posts are located in the mounting hole, a sealing ring is provided in the mounting hole, and the sealing ring has two through holes.

[0031] Beneficial effect: The sealing ring seals and protects the two conductive columns, thereby improving the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the connector in the present invention. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the overall structure of the connector in the present invention. Figure 2 ;

[0034] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle sealing ring;

[0035] Figure 4 yes Figure 1 Schematic diagram of the structure without the sealing ring;

[0036] Figure 5 yes Figure 1 Schematic diagram of the structure without the upper cover;

[0037] Figure 6 This is a schematic diagram of the connection structure between the conductive column and the wire nose in the present invention;

[0038] Figure 7 yes Figure 6 Schematic diagram of the structure of the inner cylinder;

[0039] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle and outer cylinders;

[0040] Figure 9 It is a schematic diagram of the connection structure between the connector in the present invention and the adapted external conductive bar.

[0041] The names of the components corresponding to the corresponding reference numerals in the figures are:

[0042] 1-shell, 101-installation side, 2-conductive column, 3-wire, 4-upper cover, 5-shell protrusion, 6-sealing ring, 7-adapting through hole, 8-connecting bolt, 9-wire nose, 10-inner column, 11-outer column, 12-inner column anti-loosening tooth, 13-eccentric threaded hole, 14-outer column anti-loosening tooth, 15-connecting stud, 16-external threaded hole, 17-external conductive bar, 18-exposed end face, 19-inner column clamping side, 20-outer column clamping side. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0045] It should be noted that, in the specific embodiments of the present invention, relational terms such as “first” and “second” that may appear are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms “include”, “comprises” or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or elements that are inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the possible phrase “includes a…” does not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0046] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the description of the present invention, unless otherwise expressly specified or limited, the terms "provided with" and "provided with" should be understood broadly. For example, the object "provided with" may be a part of the main body, or may be arranged separately from the main body and connected to the main body. The connection may be detachable or non-detachable. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0048] The present invention is described in further detail below with reference to the examples.

[0049] Example 1 of the connector of the present invention:

[0050] like Figure 1 and Figure 2 As shown, the connector includes a housing 1 , in which a conductive member is provided. In this embodiment, the conductive member is a conductive column 2 , which is used to be conductively connected to a wire 3 in the housing 1 .

[0051] The connector in this embodiment is connected to two wires 3. Providing two wires 3 can prevent a single wire from being too large and difficult to bend, which in turn makes installation and wiring inconvenient. Two conductive posts 2 are provided to form a conductive connection with the two wires 3, and the two conductive posts 2 are arranged side by side and spaced apart.

[0052] The housing 1 has a mounting side surface 101 , which is used to be fixedly pressed onto a wall of a corresponding box body so that the connector is fixedly connected to the corresponding box body.

[0053] In order to more clearly describe this embodiment, the side where the mounting side 101 is located is the rear side of the connector, and the opposite side is the front side. The side-by-side arrangement direction of the two conductive pillars 2 is the left-right direction.

[0054] A portion of the conductive post 2 protrudes backward from the mounting side 101, and the housing 1 has a housing protrusion 5. The housing protrusion 5 protrudes backward and is used to adapt to the portion of the conductive post 2 protruding from the mounting side 101 to fix the conductive post 2 and form protection.

[0055] The upper cover 4 is fixedly mounted on the housing 1 to protect the internal components.

[0056] like Figure 1 、 Figure 3 and Figure 4 As shown, there is a mounting hole on the shell protrusion 5, and a sealing ring 6 is provided in the mounting hole. The sealing ring 6 is in the shape of an "8" and has two parallel adaptation holes 7. The two adaptation holes 7 are used to cooperate with the corresponding conductive columns 2 to seal the conductive columns 2 in the shell protrusion 5.

[0057] like Figure 4 、 Figure 5 and Figure 6 As shown, the wire 3 is connected to the wire nose 9, and the wire nose 9 is fixedly connected to the conductive column 2 through the connecting bolt 8.

[0058] The conductive post 2 is a metal part. The housing 1 has an insulator. The conductive post 2 is integrally formed in the insulator of the housing 1 . The conductive post 2 is embedded in the insulator of the housing 1 and fixed.

[0059] The two conductive pillars 2 have the same structure, and this embodiment takes one of them as an example for detailed description.

[0060] The conductive pillar 2 has an exposed end surface 18 , which is exposed and parallel to the mounting side surface 101 .

[0061] The conductive pillar 2 comprises an inner cylinder 10 and an outer cylinder 11, arranged in a tandem arrangement. Both cylinders are copper cylindrical structures. The inner cylinder 10 and the outer cylinder 11 are eccentrically positioned, meaning the axes of the inner cylinder 10 and the outer cylinder 11 are not aligned. The outer cylinder 11 has a smaller radial dimension than the inner cylinder 10. The different dimensions of the inner cylinder 10 and the outer cylinder 11 help reduce the overall size of the conductive pillar 2.

[0062] A connecting threaded hole extending in the axial direction is provided at the front end of the inner cylinder 10 for threadedly engaging with the connecting bolt 8 so as to fix the wire nose 9 and the inner cylinder 10 together.

[0063] like Figure 7 As shown, inner column anti-loosening teeth 12 are provided on the circumference of the inner column 10. The inner column anti-loosening teeth 12 are arranged in two circles in the front-to-back direction. The inner column anti-loosening teeth 12 are formed by tooth-shaped protrusions provided on the circumference of the inner column 10. The inner column anti-loosening teeth 12 are used to cooperate with the housing 1 to fix the inner column 10 to prevent loosening.

[0064] An inner column clamping side surface 19 is provided on the circle section where the inner column anti-loosening teeth 12 are located. The inner column clamping side surface 19 is used for a grabbing tool to clamp the inner column body 10 to avoid being clamped to the inner column anti-loosening teeth 12 and causing damage.

[0065] An eccentric threaded hole 13 is provided at the rear end of the inner cylinder 10 . The eccentric threaded hole 13 is spaced apart from the inner cylinder 10 in the axial direction, and the eccentric threaded hole 13 is provided near the edge of the inner cylinder 10 .

[0066] like Figure 8 As shown, a connecting stud 15 is provided at the front end of the outer cylinder 11 , and the connecting stud 15 is used for threaded engagement with the eccentric threaded hole 13 to connect the inner cylinder 10 and the outer cylinder 11 together.

[0067] The outer cylinder 11 is provided with outer cylinder anti-loosening teeth 14, which are arranged in two circles in the front-to-back direction. The outer cylinder anti-loosening teeth 14 are formed by tooth-shaped protrusions provided on the outer cylinder 11. The outer cylinder anti-loosening teeth 14 are used to cooperate with the housing 1 to secure the outer cylinder 10 to prevent loosening.

[0068] An outer column clamping side surface 20 is provided on the circle section where the outer column anti-loosening teeth 14 are located. The outer column clamping side surface 20 is used for a grabbing tool to clamp the outer column body 11 to avoid being clamped to the outer column anti-loosening teeth 14 and causing damage.

[0069] like Figure 8 and Figure 9 As shown, the rear end face of the outer cylinder 11 forms an exposed end face 18. A conductive bar mounting structure is provided at the rear end of the outer cylinder 11. In this embodiment, the conductive bar mounting structure is an external threaded hole 16 extending axially along the outer cylinder 11. The external threaded hole 16 is used to allow an adapted external conductive bar 17 to be fixedly connected to the conductive column 2 via bolts to achieve current transmission.

[0070] like Figure 6 and Figure 9As shown, the two outer cylinders 11 are positioned close to each other, so that the two bolt holes arranged side by side in the width direction of the outer conductive bar 17 do not need to be separated by a large distance, thereby reducing the width of the outer conductive bar 17. The outer conductive bar 17 has a wide surface perpendicular to the thickness direction for press-fitting onto the exposed end surface 18.

[0071] During assembly, the inner cylinder 10 and outer cylinder 11 are fixedly connected. The two conductive posts 2 are integrally formed with the insulator portion of the housing 1, and the two outer cylinders 11 are positioned close to each other. The wires 3 are crimped onto the lugs 9, which are then bolted to the inner cylinder 10. The upper cover 4 is fixed to the housing 1, and the sealing ring 6 is fitted over the lower end of the outer cylinder 11.

[0072] When mounted on an external component, the connector's mounting side 101 faces the corresponding housing and is secured to the housing with bolts. The housing protrusion 5 and conductive posts 2 extend into the corresponding housing, and the external conductive bar 17 is bolted to the two conductive posts 2 to enable current transmission.

[0073] The exposed end faces 18 of the connector's conductive posts 2 mate with the wide surface of the external conductive bar 17, providing excellent load-bearing capacity. Furthermore, the presence of two conductive posts 2 further increases the load-bearing area and enhances load-bearing capacity. When the connector is subjected to external pressure from the front, the wide surface of the external conductive bar 17 acts as a load-bearing surface, reducing the pressure and making it less likely to puncture the corresponding insulating protective components and contact metal parts. This prevents insulation failures, short circuits, and potential safety hazards that can occur when the connector is squeezed.

[0074] Example 2 of the connector of the present invention:

[0075] The difference between this embodiment and embodiment 1 is that the connector in embodiment 1 is connected to two wires, and two corresponding conductive posts are provided to respectively achieve conductive connection with the two wires, while in this embodiment, the connector is only provided with one wire, and one corresponding conductive post is provided to achieve conductive connection.

[0076] Example 3 of the connector of the present invention:

[0077] The difference between this embodiment and Example 1 is that the conductive column in Example 1 includes an inner column and an outer column, and the inner column and the outer column are respectively used to connect the wire and the external conductive bus, while in this embodiment, the conductive column is an integrated cylinder, and the two ends of the conductive column are respectively used to connect the wire and the external conductive bus. Accordingly, the external conductive bus has a wider section, and the wider section of the external conductive bus is provided with a bolt through hole for adaptive connection with the conductive column.

[0078] Example 4 of the connector of the present invention:

[0079] The difference between this embodiment and embodiment 1 is that the conductive member in embodiment 1 is a conductive column, which is used to be fixedly connected to an external conductive busbar, while in this embodiment, the conductive member is a U-shaped copper busbar, which has two opposite side walls with bolt through holes provided on the side walls. One side wall is connected to the wire, and the other side wall is connected to the external conductive busbar.

[0080] Embodiment 5 of the connector of the present invention:

[0081] This embodiment differs from Example 1 in that, whereas in Example 1, the conductive post is provided with tooth-like protrusions on its circumference, which form anti-loosening teeth and cooperate with the housing to secure the conductive post, this embodiment has two bosses on its circumference, which form anti-loosening structures and cooperate with the housing to secure the conductive post. In other embodiments, there may be one, three, or more bosses.

[0082] Example 6 of the connector of the present invention:

[0083] The difference between this embodiment and embodiment 1 is that, in embodiment 1, two circles of anti-loosening teeth are provided on the inner cylinder and the outer cylinder respectively to achieve fixation of the conductive column in the shell, while in this embodiment, a circle of anti-loosening teeth is provided in the middle of the inner cylinder and the outer cylinder to achieve fixation of the conductive column in the shell.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A connector, comprising: The connector housing has a mounting side surface at the rear side for fixedly pressing and mounting on the box wall of the corresponding box body; It is characterized by further comprising: A conductive member, fixedly disposed in the connector housing; The conductive member has an exposed end surface, which is exposed and parallel to or inclined to the installation side surface; A conductive bar mounting structure is provided on the exposed end surface and is used to press-fit the wide surface of the corresponding external conductive bar onto the exposed end surface, wherein the wide surface of the external conductive bar is perpendicular to the thickness direction of the external conductive bar; The conductive part includes a conductive column, which is a metal part. The connector housing has an insulator. The conductive column is integrally formed in the insulator of the connector housing, and the conductive column is embedded in and fixed in the insulator; the conductive column includes an inner column and an outer column arranged front and back and fixedly connected. The inner column and the outer column are both cylindrical structures and the axis extends front and back. The front end of the inner column is used for conductive connection wires, and the rear end face of the outer column is used to form the exposed end face. The inner column and the outer column are eccentrically arranged so that the rear end face of the inner column has a portion staggered with the outer column.

2. The connector according to claim 1, wherein: The conductive member includes two conductive posts, which extend in parallel in the front-to-back direction and are spaced apart in the left-to-right direction for conductively connecting two wires. The rear end faces of the two conductive posts are exposed to form the exposed end faces.

3. The connector according to claim 2, wherein: The conductive bar mounting structure of the two conductive posts is an external threaded hole or an external stud, which is arranged on the outer cylinder and extends axially along the conductive post. Each conductive post has an internal threaded hole or an internal stud, which is arranged on the inner cylinder for conductive connection with the corresponding wire. The central axis of the external threaded hole or the external stud of each conductive post is the first central axis, and the central axis of the internal threaded hole or the internal stud of each conductive post is the second central axis. On the same conductive post, the first central axis is located on the side of the second central axis facing the other conductive post.

4. The connector according to claim 3, wherein: The inner cylinder and the outer cylinder are fixed together by threaded connection.

5. The connector according to claim 4, wherein: The radial dimension of the outer cylinder is smaller than the radial dimension of the inner cylinder.

6. The connector according to any one of claims 2 to 5, characterized in that: The conductive column is cylindrical as a whole, and anti-loosening teeth are provided on the outer peripheral surface of the conductive column, and the anti-loosening teeth are arranged along the circumference of the conductive column.

7. The connector according to claim 6, wherein: The anti-loosening teeth are arranged on the conductive column in a plurality of circles at intervals along the axial direction thereof.

8. The connector according to claim 7, wherein: The ring section where the anti-loosening teeth are located is provided with a clamping side surface.

9. The connector according to any one of claims 2 to 5, characterized in that: The connector housing has a mounting hole, the two conductive posts are located in the mounting hole, a sealing ring is provided in the mounting hole, and the sealing ring has two through holes.

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