A waterproof connector

Abstract

The present invention relates to the technical field of connectors, and specifically discloses a waterproof connector, which includes a connection head, a terminal post, and a wire fixing nut. A wiring port is provided on the terminal post, and a bolt corresponding to the wiring port is connected to the terminal post. The bolt is rotatably connected to an insulating plate, and the insulating plate is fixedly connected to a conductive cutting knife; the conductive contact member in the connection head is electrically connected to the conductive cutting knife through a wire, and the wire is wrapped with an insulating layer; an installation sleeve is sleeved outside the insulating plate, and a sealing sleeve is slidably sleeved outside the installation sleeve. The inner peripheral surface of the sealing sleeve fits with the outer peripheral surface of the installation sleeve, and the sealing sleeve is elastically connected to the installation sleeve; a heat shrinkable sleeve is placed in the wiring port. After the wiring of the waterproof connector of the present invention is completed, there are no conductive components that affect the electrical connection of the cable exposed in the wiring port of the terminal post, and the sealing sleeve seals the cut-in port between the conductive cutting knife and the cable, improving the waterproof performance of the connector and the stability of the electrical connection between the cable and the connector.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a waterproof connector. Background Art

[0002] A waterproof connector is a connector that can be applied to a water environment and can ensure the normal use of the internal mechanical and electrical properties of the connector under a certain water pressure. Chinese Patent with the authorization announcement number CN213184771U discloses a waterproof connector, which includes a first wire fixing nut, a second wire fixing nut, a waterproof sealing ring, a wire bundling connector, a wiring post and a wire pressing structure. The wire pressing structure is arranged in the wiring post and is used to cooperate with a screw to press the wire cable. In the above waterproof connector, the wire cable is connected to the wiring post, and then the wire pressing structure is installed, so that the wire pressing part of the wire pressing structure presses against the wire cable, and the elastic part of the wire pressing structure cooperates with the screw to press the wire cable.

[0003] However, when installing the wire cable into the wiring post in the above patent, it is necessary to use a tool to first strip the outer insulating skin at the end of the wire cable before making the connection. Moreover, in order to facilitate inserting the part with the stripped insulating skin into the wiring post to ensure good contact between the internal copper wires and the wiring post, sometimes a conductive sleeve is also put on the part with the stripped insulating skin before making the connection. Whether it is stripping the insulating skin or adding a conductive sleeve, it will result in low installation efficiency and poor waterproof performance.

[0004] Chinese Patent with the authorization announcement number CN210040576U discloses a piercing connector, which includes a base, a conductive sheet, a handle, a housing and an inner cover. Among them, two wiring grooves are arranged side by side at the top of the base; the conductive sheet is hinged to the base, and two conical metal conductive cutting knives are arranged at the middle part of the conductive sheet corresponding to the two wiring grooves; the handle is fixed on the top of the conductive sheet and can rotate with the conductive sheet; the housing is a hollow insulating housing with an open top, and vaseline is filled inside the housing. In the above patent, the wire cables are placed in the two wiring grooves, and the handle is pressed down to make the conductive cutting knives on the conductive sheet pierce into the wire cables, so as to realize the electrical connection between the two wire cables. And by buckling the housing with the base, the vaseline inside the housing wraps the connection part to achieve the waterproof effect.

[0005] In the actual use process of the above patent, although the operation steps are reduced by the way of inserting the conductive cutting knives into the wire cables, due to the limited waterproof ability of vaseline, it cannot be used in water for a long time or be deeply immersed. Therefore, the above patent cannot play a good waterproof role and is not suitable for the electrical connection between wire cables that need to be used in water for a long time.

[0006] In addition, the waterproof effect of vaseline is mainly due to the characteristics of vaseline oily substances, which can form a lubricating film on the surface of objects, thereby playing a waterproof role. When the puncture connector in the above patent is used for a second time, the conductive cutter will inevitably come into contact with vaseline during the process of pulling out the conductive cutter. If the vaseline forms an oil film on the conductive cutter, it will affect the conductive performance of the conductive cutter, resulting in the puncture connector cannot be used for a second time, resulting in a waste of resources.

[0007] Therefore, there is a need in the art for a waterproof connector to solve the problem that the waterproof connector in the related art has a poor waterproof effect and cannot be used multiple times. Summary of the invention

[0008] The present invention provides a waterproof connector, aiming to solve the problem that the waterproof connector in the related art has poor waterproof effect and cannot be used multiple times.

[0009] A waterproof connector of the present invention comprises a connector, a terminal and a wire fixing nut connected in sequence, wherein the terminal is provided with a terminal port, a bolt corresponding to the terminal port is connected to the terminal, an end of the bolt facing the terminal port is connected with an insulating plate which is rotated around the central axis of the bolt, and an end of the insulating plate which is away from the bolt is fixedly connected with a conductive cutter;

[0010] The conductive contact in the connector is electrically connected to the conductive cutter via a wire, the wire is wrapped with an insulating layer, the wire is passed through the insulating plate and is electrically connected to one end of the conductive cutter facing the insulating plate;

[0011] The insulating plate outer shell is provided with a plugging assembly, which includes a mounting sleeve fixedly sleeved outside the insulating plate and a plugging sleeve slidably sleeved on the outer periphery of the mounting sleeve, the inner circumference of the plugging sleeve is in contact with the outer circumference of the mounting sleeve, and the plugging sleeve is elastically connected to the mounting sleeve along the axial direction of the bolt through a compression spring;

[0012] A heat shrink sleeve for sealing and wrapping the cable end is provided in the wiring port. When the bolt drives the conductive cutter to cut into the cable, the sealing sleeve is tightly pressed against the cable to surround and seal the cutting port between the conductive cutter and the cable.

[0013] The present invention electrically connects the terminal post to the cable by cutting into the cable with a conductive cutter, thus saving the step of stripping the outer insulation of the cable and avoiding damage to the wires in the cable when stripping the insulation; by providing an insulating plate and a plugging sleeve, after the conductive cutter cuts into the cable, no conductive parts that affect the electrical connection of the cable are exposed in the terminal post's wiring port, and the plugging sleeve seals the incision between the conductive cutter and the cable, further improving the waterproof performance of the connector and the stability of the electrical connection between the cable and the connector. In addition, the waterproof connector of the present invention can smoothly disassemble the connected cable and reuse the cable after disassembly, reducing resource waste.

[0014] Preferably, a sealing portion that fits against the conductive cutter extends from one end of the sealing sleeve away from the bolt, and when the sealing portion abuts against the cable, the incision between the conductive cutter and the cable is covered.

[0015] By providing the sealing portion, the contact area between the sealing sleeve and the cable is enlarged, thereby forming a better sealing effect on the incision between the conductive cutter and the cable.

[0016] Preferably, a positioning structure for centering the cable is provided in the wiring port.

[0017] In order to ensure that the conductive cutter accurately cuts into the cable, the cable needs to be centered after the cable is inserted into the wiring port. By setting a positioning structure, the cable can be centered, ensuring that the conductive cutter is accurately inserted into the cable, thereby improving connection efficiency.

[0018] Preferably, the positioning structure includes two guide plates symmetrically arranged on both sides of the conductive cutter, and the sides of the two guide plates facing away from each other are elastically connected to the side walls of the terminal through a spring, and a guide surface is provided on the side of the guide plate facing the wiring port opening, and the guide surfaces on the two guide plates form a flaring structure on one side of the wiring port opening.

[0019] When the cable is inserted, the cable first contacts the guide surface on the guide plate, and squeezes the guide surface to drive the corresponding guide plate to move in the direction of compressing the spring 1, so that the cable can be inserted smoothly. After the cable is inserted into place, the two guide plates squeeze the cable, thereby realizing the centering and temporary fixation of the cable, which is conducive to the smooth cutting of the conductive cutter.

[0020] Preferably, a mounting groove is provided on the outer periphery of the terminal post, the guide plate is fixedly connected with a connecting post extending into the mounting groove, the outer periphery of the terminal post is threadedly connected with a wiring harness connector, and the wiring harness connector is provided with a pushing structure for pushing the connecting post to move closer to the wiring port.

[0021] By setting a pushing structure, two guiding plates squeeze the cable towards the middle, enabling the wires inside the cable to come into full contact with the conductive cutting knife, avoiding the phenomenon of poor contact between the cable and the conductive cutting knife, and ensuring the electrical connection performance of the connector.

[0022] Preferably, the pushing structure includes a pushing block adapted to the installation groove. An installation ring is rotatably connected to the inner peripheral surface of the wire bundling connector. The pushing block is fixedly connected to the installation ring. A pushing surface is provided on one side of the pushing block facing the connector head. When the wire bundling connector is installed onto the terminal post, the pushing surface pushes the connecting post to move towards the direction close to the inside of the connection port.

[0023] During the process of installing the wire bundling connector onto the terminal post, the pushing surface pushes the connecting post to move towards the direction close to the inside of the connection port, thereby causing the two guiding plates to squeeze the cable towards the middle, enabling the wires inside the cable to come into full contact with the conductive cutting knife, avoiding the phenomenon of poor contact between the cable and the conductive cutting knife, and ensuring the electrical connection performance of the connector. In addition, by clamping the cable with the two guiding plates, the reliability of the connection between the cable and the terminal post is also improved. Moreover, the wire bundling connector itself also needs to be threadedly connected to the terminal post. By screwing the wire bundling connector, the connection between the wire bundling connector and the terminal post can be achieved, and at the same time, the pushing block can push the connecting post, killing two birds with one stone.

[0024] Preferably, a telescopic rod is connected between the plugging portion and the installation sleeve. The compression spring is sleeved on the outer periphery of the telescopic rod, and both ends of the compression spring respectively abut against the installation sleeve and the plugging portion.

[0025] By directly connecting the compression spring to the plugging portion, the plugging portion can squeeze more tightly on the cable, achieving a better sealing effect.

[0026] Preferably, both the plugging sleeve and the plugging portion are made of flexible insulating materials.

[0027] The flexible insulating material has the ability to deform, can better adapt to the surface of the cable, and ensures the sealing effect of the plugging sleeve and the plugging portion.

[0028] Preferably, a sealing ring is provided on the inner periphery of the wire fixing nut.

[0029] The sealing ring can be in close contact with the outer periphery of the cable to be connected, preventing water from entering the connector between the cable and the wire fixing nut.

[0030] The beneficial effects of the present invention are as follows:

[0031] (1) The present invention conducts the electrical connection between the terminal post and the cable by means of the conductive cutting knife cutting into the cable, saving the step of stripping the outer insulating skin of the cable and avoiding accidental damage to the wires inside the cable when stripping the insulating skin;

[0032] (2) By setting the insulating plate and the sealing sleeve, after the conductive cutter cuts into the cable, there are no conductive components exposed in the wiring port of the terminal post that would affect the electrical connection of the cable. Moreover, the sealing sleeve seals the cut-in port between the conductive cutter and the cable, further improving the waterproof performance of the connector and the stability of the electrical connection between the cable and the connector.

[0033] (3) The waterproof connector of the present invention can smoothly disassemble the connected cable and reuse it after the cable is disassembled, reducing resource waste. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of an embodiment of the waterproof connector provided by the present invention;

[0035] Figure 2 is Figure 1 a disassembled schematic diagram of the waterproof connector shown;

[0036] Figure 3 is Figure 2 a schematic structural diagram of the terminal post in ;

[0037] Figure 4 is Figure 3 an assembly schematic diagram of the bolt and the conductive cutter in ;

[0038] Figure 5 is Figure 4 a sectional view of the assembly structure of the bolt and the conductive cutter shown;

[0039] Figure 6 is Figure 3 a sectional view of the terminal post shown;

[0040] Figure 7 is Figure 3 a schematic structural diagram of the guide plate and the connecting column in ;

[0041] Figure 8 is Figure 2 a schematic structural diagram of the wire bundling connector in ;

[0042] Figure 9 is Figure 2 a schematic structural diagram when the cable installs the heat shrinkable sleeve in.

[0043] Reference Signs:

[0044] 1. Connector; 11. Conductive contact; 2. Terminal; 21. Wiring port; 22. Heat shrink sleeve; 23. Mounting slot; 3. Wire harness connector; 4. Wire nut; 5. Cable; 6. Bolt; 60. Connecting plate; 61. Insulating plate; 62. T-shaped connector; 63. Conductive cutter; 64. Rotating slot; 7. Mounting sleeve; 71. Sealing sleeve; 72. Sealing part; 73. Compression spring; 74. Telescopic rod; 8. Guide plate; 80. Connecting column; 81. Guide surface; 82. Spring 1; 9. Push block; 91. Mounting ring; 92. Push surface. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0046] like Figures 1 to 9 As shown, the waterproof connector includes a connector 1, a terminal 2, a wire harness connector 3 and a wire fixing nut 4, wherein the terminal 2 is connected to the connector 1, the internal thread section of the wire harness connector 3 is threadedly connected to the outer periphery of the terminal 2, the internal thread of the wire fixing nut 4 is threadedly connected to the external thread section of the wire harness connector 3, and the inner periphery of the wire fixing nut 4 is provided with a sealing ring (not shown in the figure), which can be in close contact with the outer periphery of the cable 5 to be connected, preventing water from entering the connector from between the cable 5 and the wire fixing nut 4, and realizing waterproof sealing of the connector. The waterproof connector is used to connect two cables 5, one end of the cable 5 is connected to the waterproof connector, and the other end can be connected to the conductive part, so that the line conduction between the two conductive parts is realized through the waterproof connector.

[0047] Among them, the connector 1 can be a male plug or a female plug. In this embodiment, the connector 1 is described as a male plug. The end of the male plug away from its conductive contact 11 is fixedly connected with a terminal 2, and the cable 5 to be connected is electrically connected to the terminal 2. It can be understood that in other embodiments, the connector 1 can also be an integrated connector, that is, the connector does not need to cooperate with other connectors to achieve the connection of two cables 5. The two ends of the integrated connector are directly and respectively fixedly connected with the terminal 2, and a conductive structure for conducting the two terminals 2 is provided in the integrated connector, such as a wire, a conductive sheet, etc., and the cable 5 to be connected is connected to the terminals 2 at both ends of the integrated connector.

[0048] like Figures 3 to 5 As shown, the end of the terminal 2 away from the connector 1 is provided with three wiring ports 21 for inserting the cables 5, and three bolts 6 corresponding to the wiring ports 21 are threadedly connected to the terminal 2, and the bolts 6 extend along the radial direction of the terminal 2. Figure 5As shown, one end of the bolt 6 facing the connection port 21 is provided with an insulating plate 61. A T-shaped connecting piece 62 is adhesively bonded to the insulating plate 61. The bolt 6 includes a bolt body and a gland. The gland is detachably connected to the bolt body by screws. A rotation groove 64 with a T-shaped axial cross-section is formed on the gland. The rotation groove 64 is formed by connecting a cylindrical groove with a larger diameter and a cylindrical groove with a smaller diameter. The T-shaped connecting piece 62 is rotatably connected to the rotation groove 64, and the structure of the T-shaped horizontal part of the T-shaped connecting piece 62 fits against the groove wall of the cylindrical groove with a larger diameter. Therefore, after the gland is installed on the bolt body, there can be no relative axial movement between the T-shaped connecting piece 62 and the bolt 6. This axial direction refers to the axial direction of the bolt 6, so as to ensure that when the bolt 6 is screwed in or out, it can drive the insulating plate 61 to move synchronously along the axial direction of the bolt 6. A receiving groove (not shown in the figure) adapted to the insulating plate 61 is formed on the terminal 2. The insulating plate 61 can slide in the receiving groove along the axial direction of the bolt 6. When the bolt 6 is screwed, since the insulating plate 61 is located in the adapted receiving groove, the groove wall of the receiving groove will restrict the insulating plate 61 to prevent the insulating plate 61 from rotating synchronously with the bolt 6.

[0049] As Figure 4 and Figure 5 shown, a conductive cutting knife 63 is adhesively bonded to one end of the insulating plate 61 facing the center of the terminal 2. The conductive contact piece 11 in the connector 1 is electrically connected to the conductive cutting knife 63 through a wire (not shown in the figure). The wire is wrapped with an insulating layer to protect and waterproof the wire. An electrically connected contact is integrally injection-molded in the insulating plate 61. The wire passes through the insulating plate 61 and is electrically connected to the electrically connected contact. The part of the wire passing through the insulating plate 61 is closely attached to the insulating plate 61. One end of the conductive cutting knife 63 facing the insulating plate 61 is in pressing electrical connection with the electrically connected contact. The insulating plate 61 can be made of insulating plastic, so that the wire and the connection between the wire and the conductive cutting knife 63 are both covered with insulating materials, improving the waterproof performance.

[0050] Continue to refer to Figure 4 and Figure 5, a sealing component is sleeved outside the insulating plate 61. Specifically, the sealing component here includes an installation sleeve 7 and a sealing sleeve 71. The installation sleeve 7 is fixedly sleeved outside the insulating plate 61, and the sealing sleeve 71 is axially slidably sleeved on the outer periphery of the installation sleeve 7 along the bolt 6. A connecting plate 60 is arranged between the insulating plate 61 and the T-shaped connecting piece 62, and the connecting plate 60 is integrally injection-molded with the insulating plate 61. One end of the installation sleeve 7 facing the bolt 6 is bonded or integrally injection-molded with the connecting plate 60 on the insulating plate 61, and the gap between the installation sleeve 7 and the insulating plate 61 near one end of the bolt 6 is blocked by the connecting plate 60. The sealing sleeve 71 is slidably matched with the installation sleeve 7 along the axial direction of the bolt 6, and the inner peripheral surface of the sealing sleeve 71 is in contact with the outer peripheral surface of the installation sleeve 7. The sealing sleeve 71 is elastically connected with the installation sleeve 7 along the axial direction of the bolt 6 through a compression spring 73. The sealing sleeve 71 is slidably matched with the installation sleeve 7 so that after the sealing sleeve 71 contacts the cable 5, as the conductive cutter 63 penetrates deeper, the sealing sleeve 71 is reversely extruded by the cable 5, and the sealing sleeve 71 can move towards the direction of the bolt 6 to compress the compression spring 73. Thus, under the reaction force of the compression spring 73, the sealing sleeve 71 is gradually tightly squeezed on the cable 5 by the compression spring 73, so that the sealing sleeve 71 is arranged around the cut-in port between the conductive cutter 63 and the cable 5 and seals the cut-in port.

[0051] As Figures 3 to 5 and Figure 9 shown, a heat-shrinkable sleeve 22 for wrapping the end of the cable 5 is placed in the wiring port 21. The heat-shrinkable sleeve 22 can wrap the exposed end of the cable 5 and form a waterproof protection for the end of the cable 5. Define the direction in which the cable 5 is inserted into the wiring port 21 as the front. When connecting the cable 5, first sleeve the heat-shrinkable sleeve 22 on the front end of the cable 5, and then heat the heat-shrinkable sleeve 22 so that the heat-shrinkable sleeve 22 wraps the conductive copper wire exposed at the front end of the cable 5; then insert the cable 5 forward into the wiring port 21, the front end of the cable 5 abuts against the end face of the wiring port 21, and screw the bolt 6 into the wiring port 21. The bolt 6 drives the conductive cutter 63 to cut through the insulating skin of the cable 5 and insert into the cable 5, and electrically connect the conductive copper wire inside the cable 5 with the conductive contact part 11 inside the connector 1. When the conductive cutter 63 cuts into the cable 5, the sealing sleeve 71 will contact the cable 5, and as the conductive cutter 63 penetrates deeper, the sealing sleeve 71 is reversely extruded by the cable 5, and the sealing sleeve 71 moves towards the direction of the bolt 6 to compress the compression spring 73. Under the reaction force of the compression spring 73, the sealing sleeve 71 is gradually tightly squeezed on the cable 5 by the compression spring 73, so that the sealing sleeve 71 is arranged around the cut-in port between the conductive cutter 63 and the cable 5 and seals the cut-in port.

[0052] The electrical connection between the terminal 2 and the cable 5 of the present invention is achieved by the conductive cutter 63 cutting into the cable 5, saving the step of stripping the outer insulating skin of the cable 5 and avoiding damage to the inner conductor of the cable 5 when stripping the insulating skin. By providing the sealing sleeve 71, after the conductive cutter 63 cuts into the cable 5, there are no conductive components that affect the electrical connection of the cable 5 exposed in the connection port 21 of the terminal 2, and the sealing sleeve 71 seals the cut-in port between the conductive cutter 63 and the cable 5, further improving the waterproof performance of the connector and the stability of the electrical connection between the cable 5 and the connector. In addition, when disassembling the cable 5 of the waterproof connector of the present invention, the bolt 6 is screwed outwards, the bolt 6 drives the conductive cutter 63 to be pulled out of the cable 5, and then the cable 5 is drawn out from the connection port 21, so that the cable 5 can be smoothly disassembled. And after the cable 5 is disassembled, the waterproof connector of the present invention can be reused to connect a new cable 5, reducing resource waste.

[0053] Continue to refer to Figure 5 , one end of the sealing sleeve 71 facing away from the bolt 6 extends with a sealing portion 72 that fits on the surface of the conductive cutter 63. An expansion rod 74 is provided between the mounting sleeve 7 and the sealing portion 72. Both ends of the expansion rod 74 are respectively connected to the mounting sleeve 7 and the sealing portion 72 by screws. A compression spring 73 is sleeved outside the expansion rod 74, and both ends of the compression spring 73 respectively abut against the mounting sleeve 7 and the sealing portion 72. The sealing portion 72 surrounds the conductive cutter 63. When the sealing portion 72 abuts against the cable 5, the sealing portion 72 can cover the cut-in port between the conductive cutter 63 and the cable 5. Here, the sealing portion 72 is an inturned edge provided at the corresponding end of the sealing sleeve 71. When the sealing portion 72 with such an inturned edge structure presses against the cable 5, the contact area is relatively large. And by directly pressing the compression spring 73 against the sealing portion 72, the sealing portion 72 can be more tightly pressed against the cable 5, achieving a better sealing effect. Among them, both the sealing sleeve 71 and the sealing portion 72 are made of flexible insulating materials. As an example, the flexible insulating material can be rubber.

[0054] As Figure 3 , Figure 6 and Figure 7 shown, to ensure that the conductive cutter 63 accurately cuts into the cable 5, after the cable 5 is inserted into the connection port 21, the cable 5 needs to be in a centered state. In this embodiment, a positioning structure for centering the cable 5 is provided in the connection port 21. The positioning structure includes two guide plates 8. The two guide plates 8 are symmetrically arranged on both sides of the conductive cutter 63. Springs 82 are respectively provided on the opposite sides of the two guide plates 8. The guide plates 8 are elastically connected to the side wall of the terminal 2 through the springs 82. Figure 3In it, a guiding surface 81 is provided at the rear side of the guiding plate 8, and the guiding surfaces 81 on the two guiding plates 8 are inclined from front to back in a direction away from each other. The guiding surfaces 81 of the two guiding plates 8 are inclined so as to form a flared structure at the opening side of the wiring port 21. When the cable 5 is introduced into the wiring port 21, under the guidance of the guiding surface 81, the cable 5 easily slides towards the middle of the wiring port 21, facilitating the centering of the cable 5.

[0055] It should be particularly noted that when the cable 5 is inserted, the cable 5 first contacts the guiding surface 81 on the guiding plate 8 and squeezes the guiding surface 81 to drive the corresponding guiding plate 8 to move towards the direction of the compression spring I 82, enabling the cable 5 to be smoothly inserted. After the cable 5 is inserted in place, under the reset elastic force of the spring I 82, the two guiding plates 8 squeeze the cable 5, thereby achieving the centering and temporary fixing of the cable 5, which is beneficial for the conductive cutting tool 63 to smoothly cut in.

[0056] As Figure 2 、 Figure 3 、 Figure 6 and Figure 8 shown, in order to enable the wires in the cable 5 to be in full contact with the conductive cutting tool 63, in this embodiment, an installation groove 23 is formed in the outer periphery of the terminal post 2, and a connecting post 80 extending into the installation groove 23 is fixedly connected to the guiding plate 8. A pushing structure for pushing the connecting post 80 to move towards the inside of the wiring port 21 is provided on the wire bundling connector 3. The pushing structure here includes a pushing block 9 adapted to the installation groove 23. An installation ring 91 is rotatably connected to the inner peripheral surface of the wire bundling connector 3, the pushing block 9 is fixedly connected to the installation ring 91, and a pushing surface 92 is provided on the front side of the pushing block 9. The pushing surface 92 is inclined from front to back in a direction towards the terminal post 2.

[0057] During the installation of the wire bundling connector 3 onto the terminal post 2, the pushing surface 92 pushes the connecting post 80 to move towards the inside of the wiring port 21, thereby causing the two guiding plates 8 to squeeze the cable 5 towards the middle. After the cable 5 is squeezed, the conductive copper wires in the cable 5 will also move closer to the conductive cutting tool 63, so that the conductive copper wires in the cable 5 are in full contact with the conductive cutting tool 63, avoiding the phenomenon of poor contact between the cable 5 and the conductive cutting tool 63 and ensuring the electrical connection performance of the connector. In addition, by clamping the cable 5 with the two guiding plates 8, the connection reliability between the cable 5 and the terminal post 2 is also improved.

[0058] The specific use process of a waterproof connector of the present invention is as follows:

[0059] First, thread the fixing nut 4, the sealing ring, and the wire harness connecting member 3 onto the cable 5 in sequence. Then, insert the connecting end of the cable 5 into the connection port 21 of the corresponding terminal 2. The two guide plates 8 clamp the cable 5 to keep the cable 5 in the centered position within the connection port 21. Turn the bolt 6, causing the bolt 6 to drive the conductive cutting tool 63 and the sealing sleeve 71 to move towards the cable 5. As the bolt 6 advances, the conductive cutting tool 63 inserts into the cable 5, and the sealing portion 72 on the sealing sleeve 71 tightly abuts against the cable 5, sealing the cut-in port between the conductive cutting tool 63 and the cable 5.

[0060] After completing the electrical connection between the conductive cutting tool 63 and the cable 5, align the push block 9 on the wire harness connecting member 3 with the installation groove 23 on the terminal 2, and turn the wire harness connecting member 3 to threadedly connect the wire harness connecting member 3 with the terminal 2. During the process of turning the wire harness connecting member 3, the push block 9 enters the corresponding installation groove 23 and presses the connecting column 80 through the pushing surface 92, causing the connecting column 80 to drive the guide plate 8 to move in the direction of squeezing the cable 5, fixing the cable 5 while ensuring the stability of the electrical connection between the cable 5 and the conductive cutting tool 63.

[0061] After completing the installation of the wire harness connecting member 3, screw the fixing nut 4 onto the wire harness connecting member 3. When screwing the fixing nut 4, the sealing ring is located between the fixing nut 4 and the cable 5, sealing the gap between the fixing nut 4 and the cable 5.

[0062] In the above embodiment, the positioning structure includes two guide plates 8 symmetrically arranged on both sides of the conductive cutting tool 63, and a guiding surface 81 is provided on the guide plate 8. By squeezing the guiding surface 81 with the cable 5, the cable 5 can be smoothly inserted. After the cable 5 is inserted in place, the two guide plates 8 squeeze the cable 5. It can be understood that the description of the positioning structure in the above embodiment is only one implementation manner. In other embodiments, those skilled in the art can also change the positioning structure according to the actual situation and needs. For example, in other embodiments, the positioning structure can be an arc-shaped positioning tube arranged in the connection port 21. The radial cross-section of the arc-shaped positioning tube is in the shape of a major arc, and the arc-shaped positioning tube is fixedly connected to the side of the connection port 21 facing the conductive cutting tool 63 and is located in the centered position. The opening of the arc-shaped positioning tube faces the conductive cutting tool 63. When inserting the cable 5, first insert the cable 5 into the connection port 21 from above the arc-shaped positioning tube, and then press the cable 5 into the arc-shaped positioning tube, causing the cable 5 to squeeze the opening of the arc-shaped positioning tube and enter the arc-shaped positioning tube. The arc-shaped positioning tube clamps the cable 5, thereby achieving the effect of centering and positioning the cable 5.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention.

[0064] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0065] In the present invention, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A waterproof connector, comprising a connector, a terminal and a wire fixing nut connected in sequence, wherein the terminal is provided with a wiring port, and the terminal is connected with a bolt corresponding to the wiring port, characterized in that: The end of the bolt facing the wiring port is connected to an insulating plate that rotates around the central axis of the bolt, and the end of the insulating plate facing away from the bolt is fixedly connected to a conductive cutter; the conductive contact in the connector is electrically connected to the conductive cutter through a wire, the wire is wrapped with an insulating layer, the wire is passed through the insulating plate and is electrically connected to the end of the conductive cutter facing the insulating plate; a sealing component is provided on the outer shell of the insulating plate, the sealing component includes a mounting sleeve fixedly sleeved on the outside of the insulating plate and a sealing sleeve slidably sleeved on the outer periphery of the mounting sleeve, the inner circumferential surface of the sealing sleeve is in contact with the outer circumferential surface of the mounting sleeve, and the sealing sleeve is elastically connected to the mounting sleeve along the axial direction of the bolt through a compression spring; a heat shrink sleeve for sealing and wrapping the cable end is provided in the wiring port, when the bolt drives the conductive cutter to cut into the cable, the sealing sleeve is tightly against the cable, and the incision between the conductive cutter and the cable is surrounded and sealed; the bolt extends along the radial direction of the terminal; The insulating plate is bonded with a T-shaped connector, the bolt includes a bolt body and a gland, the gland is detachably connected to the bolt body by a screw, a rotating groove with a T-shaped axial section is provided on the gland, the rotating groove is formed by connecting a cylindrical groove with a larger diameter and a cylindrical groove with a smaller diameter, the T-shaped connector is rotatably connected to the rotating groove, and the structure of the T-shaped transverse part of the T-shaped connector is fitted with the groove wall of the cylindrical groove with a larger diameter; the terminal is provided with a receiving groove adapted to the insulating plate; A blocking portion that is in contact with the conductive cutter extends from one end of the blocking sleeve away from the bolt, and when the blocking portion abuts against the cable, the incision between the conductive cutter and the cable is covered; A positioning structure for centering the cable is provided in the wiring port; The positioning structure includes two guide plates symmetrically arranged on both sides of the conductive cutter, and the sides of the two guide plates facing away from each other are elastically connected to the side walls of the terminal respectively. The guide plate is provided with a guide surface on the side facing the wiring port opening, and the guide surfaces on the two guide plates form a flaring structure on one side of the wiring port opening.

2. The waterproof connector according to claim 1, characterized in that: The outer periphery of the terminal post is provided with an installation groove, the guide plate is fixedly connected with a connecting post extending into the installation groove, the outer periphery of the terminal post is threadedly connected with a wiring harness connector, and the wiring harness connector is provided with a pushing structure for pushing the connecting post to move closer to the wiring port.

3. The waterproof connector according to claim 2, characterized in that: The pushing structure includes a pushing block adapted to the mounting groove, the inner circumference of the wiring harness connector is rotatably connected to a mounting ring, the pushing block is fixedly connected to the mounting ring, and a pushing surface is provided on the side of the pushing block facing the connector, and when the wiring harness connector is installed on the terminal post, the pushing surface pushes the connecting post to move toward the direction close to the wiring port.

4. The waterproof connector according to claim 1, characterized in that: A telescopic rod is connected between the blocking portion and the mounting sleeve, the compression spring is sleeved on the outer periphery of the telescopic rod, and two ends of the compression spring are respectively against the mounting sleeve and the blocking portion.

5. The waterproof connector according to claim 1, characterized in that: The blocking sleeve and the blocking part are both made of flexible insulating materials.

6. The waterproof connector according to claim 1, characterized in that: A sealing ring is arranged on the inner periphery of the wire fixing nut.

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