A waterproof connector for new energy vehicle cables

Abstract

The present invention relates to the field of waterproof connectors, and in particular to a new energy vehicle cable waterproof connector, comprising a male head and a female head, wherein a positioning sleeve is integrally provided on the inner side of the male head, an inclined surface is provided on the top of the positioning sleeve, a positioning groove connected to the inclined surface is provided on the side wall of the positioning sleeve, a rotating seat is rotatably connected inside the female head, a positioning column matched with the inclined surface and the positioning groove is fixed on the side wall of the rotating seat, a wiring sleeve is fixed inside the rotating seat, an annular conductive sheet connected to the wiring sleeve is provided at one end of the rotating seat, and a plurality of female terminal posts electrically connected to the annular conductive sheet are provided in the female head. The new energy vehicle cable waterproof connector enables the male head and the female head to be plugged in at any angle through the arrangement of the positioning sleeve, the inclined surface, the rotating seat, the positioning column and the annular conductive sheet. During the plugging process, the rotating seat rotates, and finally the male terminal post can still be ensured to be inserted into the corresponding wiring sleeve.

Description

Technical Field

[0001] The invention relates to the field of connectors, and in particular to a waterproof connector for cables of new energy vehicles. Background Art

[0002] The existing waterproof connectors for new energy vehicle cables have plug-in angle restrictions: connectors often have strict requirements on the plug-in angle, and a slight deviation may lead to failure to connect correctly. Some are designed in an isosceles trapezoidal shape to avoid errors. The plug-in needs to be done in the presence of light, which is difficult to achieve at night or in dim light.

[0003] Moreover, during the wiring process, some existing connectors are soldered with solder paste, while others are connected one by one using a clip-on structure, which is troublesome to operate.

[0004] Therefore, it is necessary to provide a new energy vehicle cable waterproof connector to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a new energy vehicle cable waterproof connector.

[0006] A new energy vehicle cable waterproof connector provided by the present invention comprises a male head and a female head, a positioning sleeve is integrally provided on the inner side of the male head, an inclined surface is provided on the top end of the positioning sleeve, a positioning groove connected to the inclined surface is provided on the side wall of the positioning sleeve, a rotating seat is rotatably connected inside the female head, a positioning column matched with the inclined surface and the positioning groove is fixed on the side wall of the rotating seat, a wiring sleeve is fixed inside the rotating seat, an annular conductive sheet connected to the wiring sleeve is provided at one end of the rotating seat, a plurality of female terminal posts electrically connected to the annular conductive sheet are provided in the female head, a plurality of male terminal posts are installed in the male head, and one end of the male terminal post matches with the wiring sleeve.

[0007] Preferably, a conductive ball is provided at one end of the female terminal, and the conductive ball is in contact and conduction with the corresponding annular conductive sheet.

[0008] Preferably, the ends of the male head and the female head are both provided with a threaded connection part, a first threaded sleeve is threadedly connected to the threaded connection part, a threaded locking part is provided at the end of the first threaded sleeve, the threaded locking part includes a threaded part and a plurality of arc-shaped clamping plates arranged at the end of the threaded part, the plurality of arc-shaped clamping plates surround a circle, a rubber sleeve is clamped on the inner side of the arc-shaped clamping plate, and a second threaded sleeve is threadedly connected to the threaded locking part.

[0009] Preferably, the female terminal and the male terminal are both provided with a terminal sleeve at one end located on the inner side of the threaded connection part, a wire groove is provided on the inner side of the terminal sleeve, a spring sheet for compressing the wiring harness is provided on the side wall of the terminal sleeve, a pressure plate is slidably connected to the terminal sleeve, the male and female terminals are both connected to the corresponding pressure plates through a first spring, the pressure plate cooperates with the spring sheet, a Z-shaped drive plate is provided on the side wall of the pressure plate, the side wall of the threaded connection part is provided with an avoidance groove for avoiding the Z-shaped drive plate, and the inner wall of the first threaded sleeve is provided with an annular pressure plate cooperating with the Z-shaped drive plate.

[0010] Preferably, a sliding rod is slidably connected inside the male head and the female head, a mounting groove is provided on the side wall of the threaded connection part, a second spring is installed in the mounting groove, one end of the second spring is fixedly connected to the sliding rod, a limiting part is provided on the side wall of one end of the sliding rod, and the inner wall of the first threaded sleeve is evenly provided with anti-rotation grooves cooperating with the limiting part.

[0011] Preferably, sealing gaskets are installed at the connection between the first threaded sleeve and the second threaded sleeve, at the connection between the male head and the female head and the threaded connection part, and at the connection between the female head and the male head.

[0012] Preferably, the side wall of the rotating seat is provided with an annular groove, the inner wall of the female head is provided with a groove, a positioning ball is connected in the groove via a third spring, and the positioning ball is arranged in the annular groove.

[0013] Preferably, the female side wall is inserted between the male side wall and the positioning sleeve.

[0014] Preferably, the pressing plate and the Z-shaped driving plate are an integral component, and the Z-shaped driving plate is a plastic component.

[0015] Preferably, the male head and the female head are fixed by means of a buckle, and the female head 2 is provided with an annular protrusion that cooperates with the buckle 38.

[0016] Preferably, the outer diameter of the second threaded sleeve 19 is smaller than the outer diameter of the first threaded sleeve 14 .

[0017] Compared with the related art, the present invention has the following beneficial effects:

[0018] By setting the positioning sleeve, inclined surface, rotating seat, positioning column and annular conductive sheet, the male and female heads can be plugged in at any angle. During the plugging process, the rotating seat rotates, and ultimately it can still ensure that the male terminal post is inserted into the corresponding terminal sleeve.

[0019] By arranging the first threaded sleeve, the pressing plate, the Z-shaped driving plate, the wiring sleeve and the spring piece, the wiring harness can be quickly connected to the wiring sleeve.

[0020] During the process of plugging the male and female heads, the two slide bars squeeze the corresponding slide bars, the second spring is compressed, and the limit portion is inserted into the anti-rotation groove, so that the threaded connection portion is relatively locked with the first threaded sleeve to prevent accidental rotation of the first threaded sleeve from causing the wiring harness connection to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the exploded schematic diagrams of the overall structure of the present invention (A represents the male assembly, and B represents the female assembly);

[0022] Figure 2 This is the second exploded schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the male plug of the present invention;

[0024] Figure 4 It is a schematic diagram of the positioning groove structure of the present invention;

[0025] Figure 5 is a schematic diagram of the relative positions of the slide bars of the present invention;

[0026] Figure 6 It is a schematic diagram of the male connector structure of the present invention;

[0027] Figure 7 A schematic diagram of the relative position of the avoidance groove of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the male terminal of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the first threaded sleeve of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the rotating seat of the present invention;

[0031] Fig.11 It is a schematic diagram of the female connector structure of the present invention;

[0032] Fig.12 for Fig.11 A schematic diagram of the enlarged area in middle a;

[0033] Fig.13 It is a schematic diagram of the relative position of the third spring installation of the present invention;

[0034] Fig.14 It is a schematic diagram of the structure of the female terminal of the present invention.

[0035] Numbers in the figure: 1, male head; 2, female head; 3, positioning sleeve; 4, inclined surface; 5, positioning groove; 6, rotating seat; 7, positioning column; 8, wiring sleeve; 9, annular conductive sheet; 10, female terminal; 11, male terminal; 12, conductive ball; 13, threaded connection part; 14, first threaded sleeve; 15, thread locking part; 16, threaded part; 17, arc clamping plate; 18, rubber sleeve; 19, second threaded sleeve; 20, wiring sleeve; 21, wire groove; 22, spring; 23, pressure plate; 24, first spring; 25, Z-type drive plate; 26, avoidance groove; 27, annular pressure plate; 28, slide rod; 29, installation groove; 30, second spring; 31, limit part; 32, anti-rotation groove; 33, sealing pad; 34, annular groove; 35, groove; 36, third spring; 37, positioning ball; 38, buckle. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0037] Please refer to Figures 1 to 14 A waterproof connector for new energy vehicle cables, comprising a male head 1 and a female head 2. A positioning sleeve 3 is integrally provided on the inner side of the male head 1, and an inclined surface 4 is cleverly provided on the top of the positioning sleeve 3, while a positioning groove 5 connected to the inclined surface 4 is provided on the side wall thereof. Correspondingly, a rotating seat 6 is rotatably connected inside the female head 2, and a positioning column 7 is fixed on the side wall of the rotating seat 6, and the positioning column 7 can perfectly cooperate with the inclined surface 4 and the positioning groove 5 on the male head 1. Several wiring sleeves 8 are also fixed inside the rotating seat 6 for connecting wires. One end of the rotating seat 6 is also provided with an annular conductive sheet 9 connected to the wiring sleeve 8 to ensure smooth transmission of current.

[0038] A number of female terminal posts 10 are also provided inside the female connector 2, and these female terminal posts 10 are all electrically connected to the annular conductive sheet 9. Similarly, a number of male terminal posts 11 are also installed inside the male connector 1, and one end of these male terminal posts 11 is designed to fit tightly with the wiring sleeve 8. When the male connector 1 and the female connector 2 are plugged into each other, the positioning post 7 will first contact the inclined surface 4, and this design prompts the rotating seat 6 to start rotating. As the plugging proceeds, the positioning post 7 will eventually accurately enter the positioning groove 5, and at this time the wiring sleeve 8 is also aligned with the male terminal post 11. As the male connector 1 and the female connector 2 are further plugged into each other, the male terminal post 11 will be firmly inserted into the wiring sleeve 8, forming a firm and well-conductive connection. It is worth mentioning that during the rotation of the rotating seat 6, the female terminal post 10 always maintains connection and conduction with the corresponding annular conductive sheet 9, ensuring the continuous transmission of current.

[0039] In order to further improve the conductivity and durability of the connector, a conductive ball 12 is specially provided at one end of the female terminal 10. The conductive ball 12 is in contact with the corresponding annular conductive sheet 9, which not only reduces the friction between the female terminal 10 and the annular conductive sheet 9, but also improves the reliability of conductivity (a spring can also be installed between the female terminal 10 and the conductive ball 12 to achieve better conductive contact).

[0040] A threaded connection portion 13 is provided at the end of the male head 1 and the female head 2, and a first threaded sleeve 14 is threadedly connected to the threaded connection portion 13. A threaded locking portion 15 is provided at the end of the first threaded sleeve 14, and the threaded locking portion 15 includes a threaded portion 16 and a plurality of arc-shaped clamping plates 17 arranged at the end of the threaded portion 16. These arc-shaped clamping plates 17 form a circle and clamp a rubber sleeve 18 together. A second threaded sleeve 19 is threadedly connected to the threaded locking portion 15 for further fixing and sealing.

[0041] The female terminal 10 and the male terminal 11 are located at one end of the inner side of the threaded connection part 13, and both are provided with a wiring sleeve 20. A wire groove 21 is provided inside the wiring sleeve 20 for accommodating and fixing the wires. The side wall of the wiring sleeve 20 is also provided with a spring 22, which is used to compress the wire harness to ensure the stable connection of the wires. A pressing plate 23 is also slidably connected to the wiring sleeve 20, and the pressing plate 23 is tightly matched with the spring 22 to fix the wires together. The male head 1 and the female head 2 are connected to the corresponding pressing plate 23 through the first spring 24. The side wall of the pressing plate 23 is also provided with a Z-type drive plate 25, and the Z-type drive plate 25 is matched with the annular pressing plate 27 on the inner wall of the first threaded sleeve 14. When the first threaded sleeve 14 is connected to the threaded connection part 13, the annular pressing plate 27 will squeeze the Z-type drive plate 25, and then the pressing plate 23 squeezes the spring 22, and the wires are firmly fixed in the wire groove 21.

[0042] A slide bar 28 is slidably connected inside the male head 1 and the female head 2. A mounting groove 29 is provided on the side wall of the threaded connection part 13, and a second spring 30 is installed in the mounting groove 29. One end of the second spring 30 is fixedly connected to the slide bar 28, and a limiting portion 31 is provided on the side wall of one end of the slide bar 28. The inner wall of the first threaded sleeve 14 is evenly provided with anti-rotation grooves 32 that cooperate with the limiting portion 31. When the male head 1 and the female head 2 are plugged in, the two slide bars 28 will be squeezed, and the second spring 30 will also be compressed accordingly. At this time, the limiting portion 31 will be inserted into the anti-rotation groove 32, so that the threaded connection part 13 and the first threaded sleeve 14 are relatively locked, ensuring the stable connection of the joint.

[0043] Sealing pads 33 are installed at the connection between the first threaded sleeve 14 and the second threaded sleeve 19, the connection between the male head 1 and the female head 2 and the threaded connection part 13, and the connection between the female head 2 and the male head 1. These sealing pads 33 can effectively block the intrusion of moisture and dust, and protect the circuit inside the joint from damage.

[0044] In order to facilitate the installation and fixation of the rotating seat 6, an annular groove 34 is provided on the side wall of the rotating seat 6. A groove 35 is provided on the inner wall of the female head 2, and a positioning ball 37 is connected to the groove 35 through a third spring 36. The positioning ball 37 is exactly set in the annular groove 34. When the rotating seat 6 is installed in place, the positioning ball 37 will be stuck in the annular groove 34 to ensure the stable connection of the rotating seat 6.

[0045] In order to further improve the matching stability of the male connector 1 and the female connector 2, the side wall of the female connector 2 is specially designed to be inserted between the side wall of the male connector 1 and the positioning sleeve 3. This design allows the male connector 1 and the female connector 2 to fit more tightly when plugged in, and is not easy to loosen or fall off.

[0046] In order to reduce the cost and improve the stability of the structure, the pressing plate 23 and the Z-shaped driving plate 25 are designed as an integrated component. The Z-shaped driving plate 25 is made of plastic material, which is both light and durable.

[0047] The female head 2 is provided with an annular protrusion that cooperates with the buckle 38 and is adaptable to any angle.

[0048] The outer diameter of the second threaded sleeve 19 is smaller than the outer diameter of the first threaded sleeve 14, and is more beautiful.

[0049] Finally, in order to facilitate the fixing and removal of the connector, the male connector 1 and the female connector 2 are also fixed by a buckle 38. This design makes the installation and removal of the connector easier and faster, and the operation can be completed without using additional tools or equipment.

[0050] Wiring principle: First, insert the wire harness into the second threaded sleeve 19, the rubber sleeve 18 and the first threaded sleeve 14, and peel the ends of each branch at the end of the wire harness to expose the conductive metal wire;

[0051] Then, the corresponding conductive metal wire is inserted into the wire groove 21 inside the corresponding wiring sleeve 20;

[0052] Then, by screwing the first threaded sleeve 14, the annular pressing plate 27 on the inner wall of the first threaded sleeve 14 squeezes the Z-shaped driving plate 25, so that the pressing plate 23 squeezes the spring sheet 22, and the spring sheet 22 squeezes the conductive metal wire, thereby fixing the conductive metal wire in the wire slot 21;

[0053] Then, the rubber sleeve 18 is inserted into the inner side of the arc-shaped clamping plate 17;

[0054] Then, the second threaded sleeve 19 is screwed onto the thread locking portion 15 so that the wire harness is clamped and sealed by the rubber sleeve 18. The wiring principles of the male connector 1 and the female connector 2 are the same.

[0055] The plug-in principle of the male connector 1 and the female connector 2: During the plug-in process between the male connector 1 and the female connector 2, the positioning column 7 contacts the inclined surface 4, causing the rotating seat 6 to rotate, and the positioning column 7 finally enters the positioning groove 5. At this time, the wiring sleeve 8 is facing the male connector 11. As the male connector 1 and the female connector 2 continue to be plugged in, the male connector 11 is inserted into the wiring sleeve 8 to form a connection. While the rotating seat 6 rotates, the female connector 10 is always connected and conducted with the corresponding annular conductive sheet 9, the two slide bars 28 squeeze the corresponding slide bar 28, the second spring 30 is compressed, and the limit portion 31 is inserted into the anti-rotation groove 32, so that the threaded connection portion 13 is relatively locked with the first threaded sleeve 14.

[0056] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new energy vehicle cable waterproof connector, characterized in that: The invention comprises a male head (1) and a female head (2), wherein a positioning sleeve (3) is integrally provided on the inner side of the male head (1), an inclined surface (4) is provided on the top of the positioning sleeve (3), a positioning groove (5) connected to the inclined surface (4) is provided on the side wall of the positioning sleeve (3), a rotating seat (6) is rotatably connected inside the female head (2), a positioning column (7) matched with the inclined surface (4) and the positioning groove (5) is fixed on the side wall of the rotating seat (6), a wiring sleeve (8) is fixed inside the rotating seat (6), an annular conductive sheet (9) connected to the wiring sleeve (8) is provided at one end of the rotating seat (6), a plurality of female terminal posts (10) electrically connected to the annular conductive sheet (9) are provided inside the female head (2), and a plurality of male terminal posts (11) are installed inside the male head (1), and one end of the male terminal post (11) matches with the wiring sleeve (8); The ends of the male head (1) and the female head (2) are both provided with a threaded connection portion (13), a first threaded sleeve (14) being threadedly connected to the threaded connection portion (13), a threaded locking portion (15) being provided at the end of the first threaded sleeve (14), the threaded locking portion (15) comprising a threaded portion (16) and a plurality of arc-shaped clamping plates (17) arranged at the end of the threaded portion (16), the plurality of arc-shaped clamping plates (17) enclosing a circle, a rubber sleeve (18) being clamped inside the arc-shaped clamping plates (17), and a second threaded sleeve (19) being threadedly connected to the threaded locking portion (15); The female terminal (10) and the male terminal (11) are both provided with a wiring sleeve (20) at one end located inside the threaded connection portion (13); a wire groove (21) is provided inside the wiring sleeve (20); a spring sheet (22) for compressing a wire harness is provided on the side wall of the wiring sleeve (20); a pressing plate (23) is slidably connected to the wiring sleeve (20); the male head (1) and the female head (2) are both connected to the corresponding pressing plate (23) via a first spring (24); the pressing plate (23) cooperates with the spring sheet (22); a Z-shaped driving plate (25) is provided on the side wall of the pressing plate (23); an avoidance groove (26) for avoiding the Z-shaped driving plate (25) is provided on the side wall of the threaded connection portion (13); and an annular pressing plate (27) cooperating with the Z-shaped driving plate (25) is provided on the inner wall of the first threaded sleeve (14).

2. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: A conductive rolling ball (12) is provided at one end of the female terminal post (10), and the conductive rolling ball (12) is in contact and conduction with the corresponding annular conductive sheet (9).

3. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: A slide bar (28) is slidably connected to the male head (1) and the female head (2); a mounting groove (29) is provided on a side wall of the threaded connection portion (13); a second spring (30) is installed in the mounting groove (29); one end of the second spring (30) is fixedly connected to the slide bar (28); a limiting portion (31) is provided on a side wall of one end of the slide bar (28); and an anti-rotation groove (32) cooperating with the limiting portion (31) is evenly provided on an inner wall of the first threaded sleeve (14).

4. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: Sealing gaskets (33) are installed at the connection between the first threaded sleeve (14) and the second threaded sleeve (19), at the connection between the male head (1) and the female head (2) and the threaded connection portion (13), and at the connection between the female head (2) and the male head (1).

5. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: The side wall of the rotating seat (6) is provided with an annular groove (34), the inner wall of the female head (2) is provided with a groove (35), a positioning ball (37) is connected to the groove (35) via a third spring (36), and the positioning ball (37) is arranged in the annular groove (34).

6. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: The side wall of the female head (2) is inserted between the side wall of the male head (1) and the positioning sleeve (3).

7. A new energy vehicle cable waterproof connector according to claim 4, characterized in that: The pressing plate (23) and the Z-shaped driving plate (25) are an integral component, and the Z-shaped driving plate (25) is a component made of plastic material.

8. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: The male head (1) and the female head (2) are fixedly connected by means of a buckle (38), and the female head (2) is provided with an annular protrusion that cooperates with the buckle (38).

9. A new energy vehicle cable waterproof connector according to claim 1, characterized in that: The outer diameter of the second threaded sleeve (19) is smaller than the outer diameter of the first threaded sleeve (14).

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