Double-end wiring connector

Abstract

The utility model discloses a double-end wiring connector, which comprises a connecting main body and a tail cover assembly, and is characterized in that the connecting main body is provided with a first end part and a second end part which are oppositely arranged, and the first end part is internally provided with a plurality of first mounting holes; a plurality of second mounting holes are formed in the second end part, and the first mounting holes and the second mounting holes which are correspondingly formed are communicated with each other; the tail cover assembly is detachably installed on the first end portion, at least one through hole is formed in the tail cover assembly, and the through hole corresponds to the first installation hole. According to the design, various wiring modes from one core to four cores can be realized by replacing the tail cover assembly, so that the double-end wiring connector can adapt to various different application scenes and wiring requirements, and connectors of different models do not need to be independently designed or purchased for each requirement; when the wiring mode needs to be changed, only the tail cover assembly needs to be replaced, the whole connector does not need to be disassembled or replaced, the adjusting and replacing speed is increased, and the connecting efficiency of the double-end wiring connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically, to a double-headed wiring connector. Background Art

[0002] The application of double-headed wiring connectors in new energy vehicle batteries, motors, and electronic control parts is crucial. Double-headed wiring connectors in new energy vehicles are widely used in the connection of high-voltage electrical components such as battery packs, motor controllers, and motors.

[0003] As the electrical interface of the battery pack, the double-headed wiring connector can simultaneously provide mixed connection functions of high voltage, low voltage, communication, and grounding. This versatility enables the double-headed wiring connector to meet various electrical requirements in the new energy vehicle battery system, ensuring the stability and safety of the system. However, the structure of traditional double-headed wiring connectors is usually relatively complex, involving the precise cooperation of multiple components, which not only increases the processing procedures and difficulty of products, but may also affect the sealing effect. Specifically, traditional double-headed wiring connectors contain a large number of parts, have a complex structure, and a relatively large overall volume, which not only increases the manufacturing cost, but may also affect the reliability and service life of the double-headed wiring connector.

[0004] Secondly, traditional double-headed wiring connectors are limited by their fixed number of wiring cores and cannot be adjusted according to actual needs, resulting in the need to replace different types of double-headed wiring connectors in different application scenarios, increasing costs and usage complexity; the structure of traditional double-headed wiring connectors generally can only be applicable to one connection form and does not have universality, which limits the applicable range of a single connector structure. For occasions that require different numbers of core wiring, the entire double-headed wiring connector needs to be replaced, which not only increases costs but also affects work efficiency. Summary of the Utility Model

[0005] In order to overcome the deficiencies of traditional technologies, the utility model provides a double-headed wiring connector, which can realize various wiring methods from 1 core to 4 cores by replacing the end cap assembly, meeting the wiring requirements in different usage environments.

[0006] The technical solution of the utility model is as follows: A double-headed wiring connector includes a connection main body and an end cap assembly. The connection main body has a first end and a second end arranged oppositely. A plurality of first mounting holes are provided inside the first end; a plurality of second mounting holes are provided inside the second end. The plurality of first mounting holes and the plurality of second mounting holes are arranged in one-to-one correspondence, and the corresponding first mounting hole and the second mounting hole communicate with each other. The end cap assembly is detachably mounted on the first end, and the end cap assembly is provided with at least one through hole, and the through hole is arranged corresponding to the first mounting hole.

[0007] Further, the end cap assembly includes a cap body and a waterproof ring. The cap body has a cavity structure with an open end and a hollow interior forming a receiving cavity. The waterproof ring is installed in the receiving cavity. At the corners of the cap body, there are card holes penetrating through the wall thickness of the cap body. On both sides of each card hole, there are notches formed by partial depression of the cap body from the open end along the central axis of the cap body inward. On the outer side wall of the first end portion, there are corresponding card protrusions. The card protrusions and the card holes are cooperatively engaged to connect the cap body and the first end portion.

[0008] Further, the number of the through holes is less than or equal to the number of the first mounting holes.

[0009] Further, a conductive terminal is installed in the connection body. The first end portion and the second end portion are connected through a mounting base. The mounting base is provided with a plurality of limiting cards protruding into the second mounting hole. Each limiting card is inclined towards the direction close to the central axis of the second mounting hole. The plurality of limiting cards surround the outer periphery of the conductive terminal. And on the conductive terminal, there is an annular table surface for cooperating with the plurality of limiting cards to limit the conductive terminal.

[0010] Further, the conductive terminal includes a first connection portion and a second connection portion. The first connection portion extends into the first mounting hole, and the second connection portion extends into the second mounting hole. In the first connection portion, there is a first insertion hole for riveting with a power line; in the second connection portion, there is a second insertion hole for riveting with a power line.

[0011] Further, an annular groove is provided on the outer wall of the conductive terminal, and a sealing ring is embedded in the annular groove for sealing the gap between the conductive terminal and the mounting base.

[0012] Further, an insulating sheath is sleeved on the crimping portion of the second connection portion and the power line.

[0013] Further, the mounting base is provided with a recess surrounding the second end portion, and a sealing gasket is embedded in the recess.

[0014] Further, a connection hole is provided in the mounting base, and a bushing is nested in the connection hole.

[0015] Further, the first end portion, the second end portion and the mounting base are of an integral structure.

[0016] The beneficial effects of the present utility model according to the above solution are as follows: A double-headed wiring connector includes a connection main body and a tail cover assembly. The connection main body has a first end and a second end disposed opposite to each other. A plurality of first mounting holes are provided inside the first end; a plurality of second mounting holes are provided inside the second end. The plurality of first mounting holes and the plurality of second mounting holes are arranged in one-to-one correspondence, and the corresponding first mounting holes and second mounting holes are communicated with each other; the tail cover assembly is detachably mounted on the first end, and the tail cover assembly is provided with at least one through hole, and the through hole is arranged corresponding to the first mounting hole. With such a design, by replacing the tail cover assembly, multiple wiring methods from 1 core to 4 cores can be achieved, enabling the double-headed wiring connector to adapt to a variety of different application scenarios and wiring requirements, without the need to separately design or purchase different models of connectors for each requirement; when it is necessary to change the wiring method, only the tail cover assembly needs to be replaced, without the need to disassemble or replace the entire connector, which speeds up the adjustment and replacement speed and improves the connection efficiency of the double-headed wiring connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of traditional technologies. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a wiring schematic diagram of the double-headed wiring connector in Embodiment 1 of the present utility model;

[0019] Figure 2 It is a cross-sectional view of the double-headed wiring connector in Embodiment 1 of the present utility model;

[0020] Figure 3 It is an exploded structural view of the double-headed wiring connector in Embodiment 1 of the present utility model;

[0021] Figure 4 It is a wiring schematic diagram of the double-headed wiring connector in Embodiment 2 of the present utility model;

[0022] Figure 5 It is an internal structural view of the double-headed wiring connector in Embodiment 2 of the present utility model.

[0023] In the figure, 1 is the connection body; 11 is the first end; 111 is the first mounting hole; 112 is the clamping projection; 1121 is the inclined surface; 12 is the second end; 121 is the second mounting hole; 13 is the mounting base; 14 is the limit card; 2 is the tail cover assembly; 21 is the through hole; 22 is the cover body; 221 is the card hole; 222 is the notch; 23 is the waterproof ring; 3 is the conductive terminal; 31 is the annular table surface; 32 is the first connection part; 33 is the second connection part; 4 is the sealing ring; 5 is the insulating sheath; 6 is the sealing gasket; 7 is the bushing; 8 is the power cord outside the hole; 9 is the power cord inside the hole. Detailed implementation mode

[0024] The following further describes in detail the implementation mode of the present utility model in conjunction with the drawings and embodiments. The following detailed description of the embodiments and the drawings are used to exemplarily illustrate the principle of the present utility model, but cannot be used to limit the scope of the present utility model, that is, the present utility model is not limited to the described embodiments.

[0025] For a better understanding of the present utility model, the following further describes the present utility model in conjunction with the drawings and the implementation mode:

[0026] Embodiment 1

[0027] See Figure 1 As shown, the double-headed wiring connector provided in Embodiment 1 is used for 4-core wiring, that is, four power cords are respectively connected to both ends of the double-headed wiring connector. The double-headed wiring connector provided in Embodiment 1 is used to be installed on the cylinder block to conduct electrical equipment inside and outside the cylinder.

[0028] See Figures 2 to 3 As shown, the double-headed wiring connector provided in Embodiment 1 includes a connection body 1 and a tail cover assembly 2. The connection body 1 and the tail cover assembly 2 are detachably connected. In Embodiment 1, the connection body 1 has a first end 11 and a second end 12 arranged oppositely. Four first mounting holes 111 are arranged inside the first end 11; four second mounting holes 121 are also arranged inside the second end 12. The four first mounting holes 111 and the four second mounting holes 121 are arranged in one-to-one correspondence, and the correspondingly arranged first mounting holes 111 and second mounting holes 121 are communicated with each other; the tail cover assembly 2 is detachably installed on the first end 11. The tail cover assembly 2 is provided with four through holes 21. The four through holes 21 are arranged corresponding to the four first mounting holes 111, and the correspondingly arranged through holes 21 and the first mounting holes 111 are communicated with each other. Such a design is convenient for riveting the power cords. In Embodiment 1, the number of the through holes 21 is less than or equal to the number of the first mounting holes 111.

[0029] Since the connection between the connection body 1 and the end cover assembly 2 is detachable, the double-headed wiring connector provided in Embodiment 1 can achieve various wiring methods from 1-core to 4-core by replacing the end cover assembly 2, enabling the double-headed wiring connector to adapt to a variety of different application scenarios and wiring requirements, without the need to separately design or purchase different models of connectors for each requirement; when it is necessary to change the wiring method, only the end cover assembly 2 needs to be replaced, without the need to disassemble or replace the entire connector, which speeds up the adjustment and replacement speed and improves the connection efficiency of the double-headed wiring connector.

[0030] See Figure 2 As shown, the end cover assembly 2 includes a cover body 22 and a waterproof ring 23. The cover body 22 is a cavity structure with an open end and a hollow interior forming a receiving cavity. The waterproof ring 23 is installed in the receiving cavity. With this design, the isolation between the inside and outside of the cylinder is achieved; effectively preventing the intrusion of external water vapor and preventing electrical components from being damaged or short-circuited due to moisture; at the same time, it also reduces the possibility of dust and other impurities entering the cylinder, further protecting the operating environment of the electrical equipment.

[0031] For the convenience of disassembly and installation, in Embodiment 1, a card hole 221 penetrating the wall thickness of the cover body 22 is provided at the corner of the cover body 22. On both sides of the card hole 221, there are notches 222. The notches 222 are formed by the partial depression of the cover body 22 from the open end along the central axis of the cover body 22 inward. A corresponding card projection 112 is provided on the outer side wall of the first end portion 11. The card projection 112 and the card hole 221 are engaged to connect the cover body 22 and the first end portion 11. With this design, simply align the card projection 112 with the card hole 221 and insert it, and then press to fully engage the card projection 112 with the card hole 221 to complete the connection. Similarly, when disassembly is required, just operate in the reverse direction to quickly separate the two components without the need to use special tools or complex steps.

[0032] In Embodiment 1, the setting of the notches 222 enables a certain degree of deformation of the part of the cover body 22 between the notches 222 during the process of inserting the card projection 112 into the card hole 221. This deformation helps to guide the card projection 112 smoothly into the card hole 221 and reduces the difficulty of engagement caused by dimensional deviation or assembly error.

[0033] In Embodiment 1, one side surface of the card projection 112 is an inclined surface 1121. When the cover body 22 is installed on the connection body 1, the inclined surface 1121 can play a guiding role. The inclined surface 1121 gradually guides the cover body 22 into place during the contact process, avoiding the impact wear that may be caused by the traditional right-angle design.

[0034] See Figure 2As shown, a conductive terminal 3 is installed inside the connection body 1. The first end portion 11 and the second end portion 12 are connected by an installation base 13. The installation base 13 is provided with a plurality of limiting cards 14 that protrude into the second installation hole 121. Each limiting card 14 is inclined towards the direction close to the central axis of the second installation hole 121. The plurality of limiting cards 14 surround the outer periphery of the conductive terminal 3, and an annular table surface 31 is provided on the conductive terminal 3. The annular table surface 31 is used to cooperate with the plurality of limiting cards 14 to limit the conductive terminal 3. With this design, the limiting cards 14 can generate an inward elastic force when the conductive terminal 3 is inserted, effectively clamping and fixing the conductive terminal 3, thereby significantly enhancing the connection stability between the conductive terminal 3 and the connection body 1. When the power cord passing through the end cap assembly 2 is pulled out from the connection body 1, due to the inclined design of the limiting cards 14 and the close cooperation with the annular table surface 31, the limiting cards 14 resist the movement of the conductive terminal 3, thereby preventing the conductive terminal 3 from falling off due to the pulling out of the power cord.

[0035] See Figure 2 As shown, the conductive terminal 3 includes a first connection portion 32 and a second connection portion 33. The first connection portion 32 extends into the first installation hole 111, and the second connection portion 33 extends into the second installation hole 121. A first insertion hole for riveting with the power cord is provided inside the first connection portion 32; a second insertion hole for riveting with the power cord is provided inside the second connection portion 33; With this design, the power cord can be connected to the conductive terminal 3 by riveting, simplifying the assembly difficulty and thus reducing the production cost.

[0036] To enhance the sealing performance of the double-headed wiring connector, an annular groove is provided on the outer wall of the conductive terminal 3 in this embodiment, and a sealing ring 4 is embedded in the annular groove. The sealing ring 4 is used to seal the gap between the conductive terminal 3 and the installation base 13; The installation base 13 is provided with a recess surrounding the second end portion 12, and a sealing gasket 6 is embedded in the recess.

[0037] In this embodiment, an insulating sheath 5 is sleeved on the crimping portion of the second connection portion 33 and the power cord, and the insulating sheath 5 is shrunk and fixed by using a hot air gun to complete the assembly of the current-carrying components.

[0038] In this embodiment, a connection hole is provided inside the installation base 13, and a bushing 7 is nested inside the connection hole. Specifically, the bushing 7 is usually made of wear-resistant materials such as metal, plastic, or composite materials, etc.; Nesting the bushing 7 inside the connection hole can effectively reduce the direct wear on the wall surface of the connection hole due to actions such as plugging, unplugging, and rotation, thereby effectively extending the service life of the installation base 13.

[0039] In this embodiment, the first end portion 11, the second end portion 12, and the installation base 13 are of an integral structure.

[0040] For further explanation, Embodiment 1 of the present utility model also provides an assembly method for a double - headed wiring connector, and the specific steps are as follows:

[0041] Step 1: Assembly of the connection body 1:

[0042] S11. Press four bushings 7 into the connection body 1;

[0043] S12. Install the sealing gasket 6 into the connection body 1 to complete the assembly of the connection body 1;

[0044] Step 2: Assembly of the power supply device:

[0045] S21. Install the cover body 22 and the waterproof ring 23 into the external - hole power cord 8 in sequence; install the insulating sheath 5 into the internal - hole power cord 9;

[0046] S22. Install the sealing ring 4 into the conductive terminal 3, crimp the external - hole power cord 8 and the internal - hole power cord 9 to the first connection part 32 and the second connection part 33 of the conductive terminal 3 respectively; then push the insulating sheath 5 to cover the crimping part of the internal - hole power cord 9 and the second connection part 33, and use a hot air gun to shrink - fix the insulating sheath 5 to complete the assembly of the current - conducting components;

[0047] Step 3: Assembly of the finished double - headed wiring connector

[0048] S31. Insert the conductive terminal 3 into the connection body 1, and fix it in place after hearing a click sound;

[0049] S32. Push the waterproof ring 23 and the cover body 22 into the connection body 1 in sequence until the cover body 22 is snap - connected to the connection body 1.

[0050] The double - headed wiring connector provided in Embodiment 1 realizes the environmental isolation between the inside and outside of the cylinder through the waterproof ring 23, the sealing ring 4, and the sealing gasket 6, preventing external water vapor and dust from entering the cylinder; isolating the inside and outside environments of the cylinder, meeting the airtightness requirements of IP68 and IP6K9K, and reducing the influence of the external environment on the functions of the electrical equipment inside the cylinder.

[0051] It is worth mentioning that for the double - headed wiring connector provided in Embodiment 1 of the present utility model, its mounting base 13 is a four - way flange, and both the first end 11 and the second end 12 are in a diamond layout to avoid the corners of the four - way flange, so as to minimize the conflict between the connection body 1 and the edge of the mounting base 13, while maintaining the stability and reliability of the connection, reducing the overall volume of the connector, and thus being able to reduce the space occupancy rate of the connector and making it easy to install in a narrow space.

[0052] Embodiment 2

[0053] See Figures 4 to 5As shown, the double-headed wiring connector provided in Embodiment 2 is used for 2-core wiring, that is, the two ends of the double-headed wiring connector are respectively connected to two power lines. The double-headed wiring connector provided in Embodiment 2 is used to be installed on the cylinder block to conduct the electrical equipment inside and outside the cylinder.

[0054] Different from Embodiment 1, the end cover assembly 2 provided in Embodiment 2 is provided with 2 through holes 21, and the 2 through holes 21 are correspondingly arranged with two of the 4 first mounting holes 111, and the correspondingly arranged through holes 21 and the first mounting holes 111 are communicated with each other to facilitate riveting the power lines. Other structures are the same as those in Embodiment 1 and will not be elaborated here.

[0055] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0056] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

[0057] The above describes the patent of the present utility model with reference to the drawings in an exemplary manner. Obviously, the implementation of the patent of the present utility model is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the patent of the present utility model, or the concept and technical solution of the patent of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A double-headed wiring connector, characterized in that, Comprising: A connecting body (1), the connecting body (1) having a first end (11) and a second end (12) disposed opposite to each other, a plurality of first mounting holes (111) being provided in the first end (11); a plurality of second mounting holes (121) being provided in the second end (12), the plurality of first mounting holes (111) and the plurality of second mounting holes (121) being arranged in one-to-one correspondence, and the corresponding first mounting hole (111) and the second mounting hole (121) being in communication with each other; A tail cap assembly (2), the tail cap assembly (2) being detachably mounted on the first end (11), the tail cap assembly (2) being provided with at least one through hole (21), the through hole (21) being arranged corresponding to the first mounting hole (111).

2. The double-headed wiring connector according to claim 1, characterized in that: The tail cap assembly (2) includes a cover body (22) and a waterproof ring (23), the cover body (22) being a cavity structure having an open end and a hollow interior forming a receiving cavity, the waterproof ring (23) being mounted in the receiving cavity, a card hole (221) penetrating through the wall thickness of the cover body (22) being provided at a corner of the cover body (22), notches (222) being provided on both sides of the card hole (221), the notches (222) being formed by partial inward depression of the cover body (22) from the open end along the central axis of the cover body (22), a card projection (112) being correspondingly provided on the outer side wall of the first end (11), and the card projection (112) and the card hole (221) being cooperatively engaged to connect the cover body (22) and the first end (11).

3. The double-headed wiring connector according to claim 1, characterized in that: The number of the through holes (21) is less than or equal to the number of the first mounting holes (111).

4. The double-headed wiring connector according to claim 1, wherein: A conductive terminal (3) is mounted in the connecting body (1), the first end (11) and the second end (12) being connected by a mounting base (13), the mounting base (13) being provided with a plurality of limiting cards (14) protruding into the second mounting hole (121), each of the limiting cards (14) being inclined towards the direction close to the central axis of the second mounting hole (121), the plurality of limiting cards (14) surrounding the outer periphery of the conductive terminal (3), and an annular table surface (31) being provided on the conductive terminal (3), the annular table surface (31) being used for cooperating with the plurality of limiting cards (14) to limit the conductive terminal (3).

5. The double-headed wiring connector according to claim 4, wherein: The conductive terminal (3) includes a first connecting portion (32) and a second connecting portion (33), the first connecting portion (32) extending into the first mounting hole (111), the second connecting portion (33) extending into the second mounting hole (121), a first insertion hole for riveting with a power line being provided in the first connecting portion (32); a second insertion hole for riveting with a power line being provided in the second connecting portion (33).

6. The double-headed wiring connector according to claim 5, wherein: An annular groove is provided on the outer wall of the conductive terminal (3), and a sealing ring (4) is embedded in the annular groove. The sealing ring (4) is used to seal the gap between the conductive terminal (3) and the mounting base (13).

7. The double-headed wiring connector according to claim 6, wherein: An insulating sheath (5) is sleeved at the crimping portion of the second connecting portion (33) and the power line.

8. The double-headed wiring connector according to claim 4, characterized in that: The mounting base (13) is provided with a recess surrounding the second end portion (12), and a sealing gasket (6) is embedded in the recess.

9. The double-headed wiring connector according to claim 4, characterized in that: A connecting hole is provided in the mounting base (13), and a bushing (7) is nested in the connecting hole.

10. A double-headed wiring connector as claimed in claim 4, wherein: The first end portion (11), the second end portion (12) and the mounting base (13) are of an integral structure.

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