Connector

Abstract

The utility model relates to a connector, which comprises a terminal, an insulating shell and a sealing element, the insulating shell is injection-molded on the outer side of the terminal; the insulating shell is concavely provided with at least one butting port and a forming positioning groove, and the terminal part is exposed in the butting port and the forming positioning groove; the sealing piece comprises a first sealing part and a second sealing part connected with the first sealing part, the first sealing part is arranged on the periphery of the butt joint opening in a surrounding mode, and the second sealing part covers the formed positioning groove in a sealing mode and is exposed out of the outer side of the insulating shell. The sealing piece comprises a first sealing part and a second sealing part, the first sealing part is arranged on the periphery of the butt joint port in a surrounding mode so as to seal the joint position of the connector and the butt joint connector, and the second sealing part seals the forming positioning groove so as to seal the area, exposed out of the insulating shell, of the terminal after the mold insert is pulled out of the insulating shell after injection molding is completed; the sealing piece can seal the forming positioning groove and the butt joint port at the same time, dust or lubricating oil is prevented from entering the forming positioning groove to pollute the terminal, and the sealing performance is improved.

Description

[Technical Field]

[0001] This utility model relates to the field of connector technology, and in particular to a connector with improved sealing performance. [Background Technology]

[0002] With the continuous development of the automotive industry, there is a need to monitor the operational data of various automotive components. This necessitates the extensive use of connectors in automobiles to ensure normal data transmission. In the automotive field, connectors typically need to prevent the ingress of lubricating oil or dust to avoid contamination of the terminals and subsequent poor contact. Connectors generally consist of terminals, an insulating shell, and seals. When a connector mates with a mating connector, the terminals make contact with the mating terminals inside the mating connector to ensure the transmission of current or signals. Seals are used to seal the joint between the insulating shell and the mating connector shell to prevent dust or lubricating oil from entering and contaminating the terminals, or even causing short circuits. To protect and secure the terminals, the insulating shell is usually injection-molded over the terminals. During the injection molding process, the high injection pressure of the insulating material entering the mold can cause misalignment of the terminal's installation position. Therefore, the terminals are clamped and fixed within the injection mold by inserts to ensure accurate terminal positioning.

[0003] After injection molding, a molding positioning groove will be formed at the position where the insulating shell is removed from the mold insert. The terminals will be partially exposed in the molding positioning groove, which will cause external dust or lubricating oil to enter the molding positioning groove and contaminate the terminal part inside the molding positioning groove.

[0004] Therefore, it is necessary to design an improved connector to overcome the above problems. [Utility Model Content]

[0005] To address the problems encountered in the background technology, the present invention aims to provide a connector that uses a sealing element including a first sealing part and a second sealing part. The first sealing part seals the outer periphery of the mating interface, and the second sealing part seals the molded positioning groove. This achieves simultaneous sealing of the molded positioning groove and the mating interface by the sealing element, thereby solving the problem of dust or lubricating oil entering the molded positioning groove and contaminating the terminals.

[0006] To achieve the above objectives, the present invention employs the following technical means:

[0007] A connector, comprising:

[0008] terminal;

[0009] An insulating shell, the insulating shell being injection molded onto the outside of the terminal; at least one pair of interfaces and molding positioning grooves are respectively recessed on opposite sides of the insulating shell, and the terminal portion is exposed within the interfaces and molding positioning grooves; and

[0010] A sealing element, combined with the insulating shell; the sealing element includes a first sealing portion and a second sealing portion connected to the first sealing portion, the first sealing portion being located on one side of the insulating shell and surrounding the outer periphery of the mating interface, and the second sealing portion being sleeved on the outside of the insulating shell and sealing the molded positioning groove.

[0011] A connector, comprising:

[0012] terminal;

[0013] An insulating shell, injection molded onto the outside of the terminal; the insulating shell is recessed with at least one pair of interfaces and a molding positioning groove, the terminal portion being exposed within the interfaces and the molding positioning groove, the molding positioning groove being used to cooperate with the injection mold to position the terminal during injection molding of the insulating shell; and

[0014] A sealing element, combined with the insulating shell; the sealing element includes a first sealing portion and a second sealing portion connected to the first sealing portion, the first sealing portion surrounding the outer periphery of the mating interface, and the second sealing portion covering the molded positioning groove and exposed on the outside of the insulating shell.

[0015] In one embodiment, the connector has a first direction, a second direction, and a third direction that intersect each other; the mating interface and the molded positioning groove are arranged opposite to each other on both sides of the insulating shell in the first direction, and the terminal extends along the second direction;

[0016] The second sealing part includes a cover block and a connecting block connecting the cover block. The cover block covers the molded positioning groove. There are two connecting blocks, which are arranged opposite to each other on both sides of the cover block in a third direction. The two connecting blocks are connected between the first sealing part and the cover block. In the second direction, the width of the cover block is greater than the width of the connecting block.

[0017] In one embodiment, the thickness of the cover block in a first direction is smaller than the thickness of the connecting block in a third direction.

[0018] In one embodiment, the first sealing portion includes an inner ring, an outer ring surrounding the outer side of the inner ring, and a support block connecting the inner ring and the outer ring; the inner ring and the outer ring are spaced apart, and the support block divides the space between the inner ring and the outer ring into a first spacer groove and a second spacer groove, the opening of the first spacer groove faces the inner side of the insulating shell, the second sealing portion connects the inner ring and outer ring portions on both sides of the first spacer groove, and the support block is arc-shaped and arches into the first spacer groove.

[0019] In one embodiment, the inner ring has a first inclined surface on the side away from the second spacer groove, and the outer ring has a second inclined surface on the side away from the second spacer groove. The distance between the first inclined surface and the second inclined surface gradually decreases along the direction from the first spacer groove to the second spacer groove.

[0020] In one embodiment, a first rib and a second rib are further supported between the inner ring and the outer ring; the first rib is disposed in the first spacer groove, one end of the first rib is connected to the support block, and the other end of the first rib extends toward the opening of the first spacer groove; the second rib is disposed in the second spacer groove, one end of the second rib is connected to the support block, and the other end of the second rib extends toward the opening of the second spacer groove.

[0021] In one embodiment, the connector has a first direction, and the first spacer groove and the second spacer groove are arranged opposite to each other on both sides of the support block along the first direction. The height dimension of the first rib in the first direction is smaller than the depth dimension of the first spacer groove in the first direction, and the height dimension of the second rib in the first direction is smaller than the depth dimension of the second spacer groove in the first direction.

[0022] In one embodiment, the connector further includes a dust cover connected to an insulating shell. The dust cover includes a body, a plug connected to the body, a handle connected to the body, and a latch connected to the handle. The plug protrudes from the body toward the insulating shell and covers the mating interface. The handle is flexibly protruding from the periphery of the body. The latch extends from the handle toward the insulating shell and engages with the insulating shell.

[0023] In one embodiment, the insulating shell is provided with a receiving groove and a fastening groove; the number of mating interfaces is multiple, the receiving groove surrounds the periphery of the multiple mating interfaces, the first sealing part is disposed in the receiving groove, the molding positioning groove is disposed on the side of the insulating shell away from the receiving groove, the fastening groove connects the receiving groove and the molding positioning groove respectively, the second sealing part is embedded in the fastening groove and the molding positioning groove, and the end of the latch away from the handle is engaged in the fastening groove and located outside the second sealing part.

[0024] In one embodiment, the terminal includes an outer conductor, an extension, and a contact portion connected in sequence; the outer conductor is exposed outside the insulating shell, the extension is covered by the insulating shell, one side of the contact portion is exposed inside the mating interface, and the other side of the contact portion is exposed inside the molded positioning groove and covered by the second sealing portion.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The seal includes a first sealing part and a second sealing part. The first sealing part surrounds the outer periphery of the mating interface to seal the engagement position of the connector and the mating connector. The second sealing part covers the molded positioning groove to seal the area where the terminal is exposed outside the insulating shell after the mold insert is removed from the insulating shell after injection molding. The seal simultaneously seals the molded positioning groove and the mating interface, preventing dust or lubricating oil from entering the molded positioning groove and contaminating the terminal, thus improving the sealing performance of the connector. Moreover, since the second sealing part and the first sealing part are combined with the insulating shell, the bonding area is increased. The second sealing part improves the structural stability of the seal on the insulating shell, preventing displacement of the first sealing part, thereby improving the sealing performance at the engagement position of the connector and the mating connector.

[0027] 2. The interface and the molded positioning groove are arranged opposite each other on both sides of the insulating shell in the first direction. The first sealing part is installed on the side of the insulating shell with the interface along the first direction, and the second sealing part is sleeved on the outside of the insulating shell along the second direction to cover the molded positioning groove. This allows the sealing element to combine with the insulating shell in different assembly directions, thereby limiting the sealing element on the insulating shell in different directions and improving the connection stability between the sealing element and the insulating shell. Furthermore, since the second sealing part includes a cover block and connecting blocks on both sides of the cover block, and the connecting blocks are connected to the first sealing part, the width dimension of the cover block in the second direction is larger than the width dimension of the connecting blocks in the second direction. This ensures that the cover block covers the molded positioning groove with a larger area, increasing the covering area between the cover block and the insulating shell and improving the sealing performance of the cover block on the molded positioning groove.

[0028] 3. The thickness of the cover block in the first direction is smaller than the thickness of the connecting block in the third direction, which improves the load-bearing strength of the connecting block between the cover block and the first sealing part. Since the connector will squeeze the first sealing part when it is engaged with the mating connector, the first sealing part will transfer part of the pressure to the connecting block, making the connecting block prone to deformation and reducing the sealing performance at the connecting block. By increasing the thickness of the connecting block in the third direction, the deformation of the connecting block under pressure can be effectively reduced, thereby preventing dust or lubricating oil from seeping into the connecting block, thus improving the sealing performance at the connecting block. Moreover, by increasing the thickness of the connecting block in the third direction, the reliability of fixing the cover block to the first sealing part can also be effectively increased, extending the service life of the seal.

[0029] 4. A support block is provided between the inner and outer rings. The support block has a first gap groove on the side near the insulating shell and a second gap groove on the side away from the insulating shell. The support block is arc-shaped and arches into the first gap groove. When the connector is engaged with the mating connector, the mating connector will squeeze the inner and outer ring portions on both sides of the second gap groove. The inner and outer ring portions on both sides of the second gap groove will generate a certain outward expansion deformation to absorb part of the pressure, and the other part of the pressure will be transmitted to the inner and outer ring portions on both sides of the first gap groove. By arching the support block into the first gap groove in an arc shape, the support block can absorb a certain amount of pressure through its own deformation, thereby reducing the deformation of the inner and outer ring portions on both sides of the first gap groove. Since the second sealing part is connected to the inner and outer ring portions on both sides of the first gap groove of the first sealing part, the second sealing part bears less deformation load of the first sealing part, thereby reducing the deformation of the second sealing part and improving the stability of the second sealing part sealing the molded positioning groove.

[0030] 5. The inner and outer ring portions on both sides of the second spacer groove are respectively provided with a first inclined surface and a second inclined surface. The distance between the first inclined surface and the second inclined surface gradually decreases along the direction from the first spacer groove to the second spacer groove. This allows the inner and outer ring portions on both sides of the second spacer groove to generate greater deformation and absorb more pressure load. Absorbing more pressure load means that less pressure load is transmitted to the second sealing part, so the deformation of the second sealing part is also smaller, further improving the stability of the second sealing part in sealing the molded positioning groove.

[0031] 6. The first rib supports the inner and outer rings on both sides of the first spacer groove, and the second rib supports the inner and outer rings on both sides of the second spacer groove, thereby improving the overall load-bearing strength of the first sealing part, preventing the first sealing part from breaking due to long-term pressure load, and extending the service life of the seal.

[0032] 7. The height dimension of the first rib in the first direction is smaller than the depth dimension of the first spacer groove in the first direction, and the height dimension of the second rib in the first direction is smaller than the depth dimension of the second spacer groove in the first direction. This makes the hardness of the two ends of the first sealing part less than the hardness of the middle part in the first direction. This ensures that the hardness of the first sealing part is lower at the contact point with the insulating shell and the mating connector shell, which is more conducive to generating elastic deformation and improving the sealing effect at the joint position of the connector and the mating connector. At the same time, it can also ensure that the hardness of the middle part of the first sealing part is greater and the load-bearing strength is greater, thus extending the service life of the seal.

[0033] 8. The dust cover seals the interface with a plug to prevent dust or lubricating oil from entering the interface and contaminating the terminals during transportation. Furthermore, a handle and a latch connected to the handle are provided on the main body. The handle is flexibly mounted on the main body, and the latch can engage with the insulating shell. When installing or removing the dust cover, pressing the handle will rotate the latch, enabling quick installation and removal of the dust cover and the insulating shell, making it more convenient and faster to use. [Attached Image Description]

[0034] Figure 1 This is a schematic diagram of the connector structure according to the first embodiment of the present invention;

[0035] Figure 2 for Figure 1 Exploded view of the connector;

[0036] Figure 3 for Figure 1 A cross-sectional view of position AA in the middle;

[0037] Figure 4 for Figure 1 A schematic diagram of the structure behind the hidden dust cover;

[0038] Figure 5 for Figure 4 Cross-sectional view of the BB position;

[0039] Figure 6 for Figure 1 A schematic diagram of the structure hidden behind the dust cover and seals;

[0040] Figure 7 for Figure 1 Schematic diagram of the middle sealing component;

[0041] Figure 8 for Figure 7 Another structural schematic diagram of the central sealing component;

[0042] Figure 9 for Figure 7 A cross-sectional view of the CC position.

[0043] Explanation of reference numerals in the accompanying drawings for specific embodiments:

[0044]

[0045] [Specific Implementation Examples]

[0046] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0047] In the description of this utility model, it should be understood that 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0052] It should be noted that, according to Figures 1 to 9 As shown, in this embodiment of the invention, the X-axis, Y-axis, and Z-axis intersect each other in pairs. For ease of explanation, the first direction is defined as the X-axis, the second direction as the Y-axis, and the third direction as the Z-axis. In this embodiment, the X-axis and Y-axis are coplanar and perpendicular to each other, and the Z-axis is perpendicular to the common plane of the X and Y axes. The first, second, and third directions are mutually perpendicular. Further explanation: the term "parallel" in this application includes not only absolute parallelism but also approximate parallelism as commonly understood in engineering, such as "parallel" referring to an angle of -1° to 1° between lines, lines and surfaces, or surfaces. Similarly, "perpendicular" also includes not only absolute perpendicularity but also approximate perpendicularity as commonly understood in engineering, such as "perpendicular" referring to an angle of 89° to 91° between lines, lines and surfaces, or surfaces. Equal distances or equal angles include not only absolute equality, but also approximate equality as commonly understood in engineering, which means there can be a certain degree of error, such as a tolerance range of -1% to 1%.

[0053] Please see Figures 1 to 9The connector 1, as described in the first embodiment of this utility model, is used to engage with a mating connector along a first direction to ensure the transmission of current or signals. The connector 1 includes terminals 10, an insulating shell 20, and a sealing element 30. When the insulating shell 20 engages with the mating connector shell, the terminals 10 make contact with the mating terminals inside the mating connector to achieve current or signal transmission. The sealing element 30 seals the engagement position between the insulating shell 20 and the mating connector shell to prevent dust or lubricating oil from entering and contaminating the terminals 10.

[0054] Please see Figures 1 to 6 The terminal 10 is a conductive element extending along a second direction. The terminal 10 includes an outer conductive portion 11, an extension portion 12, and a contact portion 13 connected in sequence. The outer conductive portion 11 is located at one end of the terminal 10 and is exposed outside the insulating shell 20. The outer conductive portion 11 is used for electrical connection with external cables; understandably, the outer conductive portion 11 can also be used for electrical connection with external circuit boards. It is not specifically limited here to the outer conductive portion 11 being connected and fixed to external cables or circuit boards, as long as the terminal 10 is electrically connected to external electrical components through the outer conductive portion 11, thereby ensuring the transmission of current or signals. The extension portion 12 is elongated and extends along the second direction, and is covered by the insulating shell 20. The extension portion 12 is used to fix the terminal 10 inside the insulating shell 20. The contact portion 13 is located at the end of the extension portion 12 away from the outer conductive portion 11. The contact portion 13 is used to make contact with the mating terminals of the mating connector to achieve current or signal transmission between the connector 1 and the mating connector. Furthermore, the number of terminals 10 is multiple, and each terminal 10 is arranged at intervals along a third direction; in this embodiment, the number of terminals 10 is three, and the three terminals 10 are evenly spaced along a third direction.

[0055] The insulating shell 20 is an insulating component, injection molded onto the outside of the terminal 10, and covers and fixes the terminal 10. The insulating shell 20 has at least one pair of interfaces 21 and a molding positioning groove 22. The terminal 10 is partially exposed in the interfaces 21 and the molding positioning groove 22. The interfaces 21 are used to engage with a mating connector. The mating terminals of the mating connector are inserted into the interfaces 21 and communicate with the terminal 10. The molding positioning groove 22 is used to cooperate with a mold insert in the injection mold. The mold insert is inserted into the molding positioning groove 22 to clamp and fix the terminal 10 in the injection mold. After the insulating shell 20 is injection molded, the molding positioning groove 22 is formed at the position where the insulating shell 20 is removed from the mold insert. In this embodiment, the interface 21 and the molding positioning groove 22 are arranged opposite each other on both sides of the insulating shell 20 in the first direction. During injection molding of the insulating shell 20, the mold inserts are inserted into the interface 21 and the molding positioning groove 22 respectively to clamp and fix the terminal 10. That is, the interface 21 also acts as the molding positioning groove 22 during the injection molding of the insulating shell 20 to ensure that the mold inserts are clamped and fixed against both sides of the terminal 10. In another embodiment, the molding positioning groove 22 is arranged opposite each other on both sides of the terminal 10. The molding positioning groove 22 is located at the extension 12 of the terminal 10. That is, the molding positioning groove 22 is not arranged opposite each other to the interface 21 on both sides of the terminal 10, but two molding positioning grooves 22 are arranged opposite each other on both sides of the terminal 10. In this case, the molding positioning groove 22 and the interface 21 are staggered along the extension direction of the terminal 10. Understandably, the positions of the molding positioning groove 22 and the interface 21 are not limited here. That is, it is not limited here whether the interface 21 acts as the molding positioning groove 22 during the injection molding of the insulating shell 20. The position of the molding positioning groove 22 can be selected according to the actual structure and actual engagement method of the connector 1.

[0056] Please refer to it again. Figures 1 to 9The sealing element 30 is combined with the insulating shell 20. The sealing element 30 includes a first sealing portion 31 and a second sealing portion 32 connecting the first sealing portion 31. The first sealing portion 31 surrounds the outer periphery of the interface 21, and the second sealing portion 32 covers the molded positioning groove 22 and is exposed on the outside of the insulating shell 20. One side of the contact portion 13 is exposed inside the interface 21 and surrounded by the first sealing portion 31, while the other side of the contact portion 13 is exposed inside the molded positioning groove 22 and is covered by the second sealing portion 32. The first sealing portion 31 is used to seal the mating position between the connector 1 and the mating connector, and the second sealing portion 32 is used to cover the molded positioning groove 22. In this embodiment, the interface 21 and the molded positioning groove 22 are arranged opposite each other on opposite sides of the insulating shell 20. The first sealing portion 31 is located on one side of the insulating shell 20 and surrounds the outer periphery of the interface 21, and the second sealing portion 32 spans across the insulating shell 20 and covers the molded positioning groove 22. Understandably, when the interface 21 and the molding positioning groove 22 are not arranged opposite each other on both sides of the insulating shell 20, the positional relationship between the first sealing part 31 and the second sealing part 32 can be adaptively adjusted to ensure that the first sealing part 31 surrounds the outer periphery of the interface 21 and the second sealing part 32 covers the molding positioning groove 22.

[0057] The first sealing part 31 includes an inner ring 311, an outer ring 312 surrounding the outer side of the inner ring 311, and a support block 313 connecting the inner ring 311 and the outer ring 312. The inner ring 311 is tubular, with its axial direction along a first direction. The outer ring 312 is tubular, with its axial direction also along the first direction. The inner ring 311 and the outer ring 312 are spaced apart. The support block 313 connects the two ends of the inner ring 311 and the outer ring 312 in the first direction. The support block 313 divides the space between the inner ring 311 and the outer ring 312 into a first spacer groove 316 and a second spacer groove 317. The opening of the first spacer groove 316 faces the inside of the insulating shell 20, and the opening of the second spacer groove 317 faces away from the insulating shell 20. The first spacer groove 316 and the second spacer groove 317 are arranged opposite to each other on both sides of the support block 313 in the first direction. The cross-section of the first sealing part 31 is approximately H-shaped. The second sealing part 32 is connected to the inner ring 311 and outer ring 312 portions on both sides of the first spacer groove 316. The support block 313 is arc-shaped and arches into the first spacer groove 316. Since the first sealing part 31 is used to seal the mating interface 21, when the connector 1 and the mating connector are engaged, the connector 1 and the mating connector will respectively abut against the first sealing part 31 on both sides in the first direction. The opening of the first spacer groove 316 faces the insulating shell 20, and the opening of the second spacer groove 317 faces away from the insulating shell 20. This causes the insulating shell 20 of the connector 1 to abut against the inner ring 311 and outer ring 312 portions on both sides of the first spacer groove 316, and the mating connector shell to abut against the inner ring 311 and outer ring 312 portions on both sides of the second spacer groove 317. The mating connector squeezes the inner ring 311 and outer ring 312 portions on both sides of the second spacer groove 317. Part of the pressure will cause the inner ring 311 and outer ring 312 on both sides of the second spacer groove 317 to undergo a certain outward expansion deformation, while another part of the pressure will be transmitted to the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316. By making the cross-section of the support block 313 arc-shaped and arching it inward into the first spacer groove 316, the support block 313 can absorb a certain amount of pressure through its own flattened elastic deformation, thereby reducing the deformation of the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316. Since the second sealing part 32 is connected to the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316, the second sealing part 32 bears less deformation load and the deformation of the second sealing part 32 is smaller, thereby improving the sealing stability of the second sealing part 32 on the molded positioning groove 22.In this embodiment, the inner ring 311 has a first inclined surface 3110 on the side away from the second spacer groove 317, and the outer ring 312 has a second inclined surface 3120 on the side away from the second spacer groove 317. The distance between the first inclined surface 3110 and the second inclined surface 3120 gradually decreases along the direction from the first spacer groove 316 to the second spacer groove 317, so that when the connector 1 is engaged with the mating connector, the inner ring 311 and outer ring 312 on both sides of the second spacer groove 317 can generate greater deformation to absorb more pressure load, thereby reducing the pressure load transmitted to the second sealing part 32, further reducing the deformation of the second sealing part 32, and improving the stability of the second sealing part 32 sealing the molding positioning groove 22.

[0058] A first rib 314 and a second rib 315 are also provided between the inner ring 311 and the outer ring 312. The first rib 314 is disposed in the first spacer groove 316, and the first rib 314 is plate-shaped and extends along the first direction. One end of the first rib 314 is connected to the support block 313, and the other end of the first rib 314 extends toward the opening of the first spacer groove 316. The second rib 315 is disposed in the second spacer groove 317, and the second rib 315 is plate-shaped and extends along the first direction. One end of the second rib 315 is connected to the support block 313, and the other end of the second rib 315 extends toward the opening of the second spacer groove 317. The first rib 314 and the second rib 315 improve the load-bearing strength between the inner ring 311 and the outer ring 312, thereby preventing the first sealing part 31 from breaking due to long-term pressure load and extending the service life of the seal 30. In this embodiment, there are multiple first ribs 314 and the number of second ribs 315 is the same as the number of first ribs 314. The first ribs 314 are evenly spaced along the first interval groove 316. The first ribs 314 and the second ribs 315 are arranged opposite to each other on both sides of the support block 313 in the first direction, so that the support position of the first ribs 314 on the inner ring 311 and outer ring 312 on both sides of the first interval groove 316 corresponds to the support position of the second ribs 315 on the inner ring 311 and outer ring 312 on both sides of the second interval groove 317. This makes the first sealing part 31 absorb pressure load more evenly and improves the sealing performance of the first sealing part 31. Furthermore, the height dimension of the first rib 314 in the first direction is smaller than the depth dimension of the first spacer groove 316 in the first direction, and the height dimension of the second rib 315 in the first direction is smaller than the depth dimension of the second spacer groove 317 in the first direction. This makes the hardness of the two ends of the first sealing part 31 in the first direction less than the hardness of the middle area. The two ends correspond to the positions of the insulating shell 20 and the mating connector shell. The lower hardness is conducive to generating elastic deformation and improving the sealing effect at the joint position of the connector 1 and the mating connector. At the same time, the middle area has greater hardness and load-bearing strength, which extends the service life of the sealing part 30.

[0059] The second sealing part 32 includes a cover block 321 and a connecting block 322 connecting the cover block 321. The cover block 321 is in the shape of a straight plate and is disposed on the side of the insulating shell 20 away from the first sealing part 31, and the cover block 321 covers the molded positioning groove 22. There are two connecting blocks 322, which are arranged opposite to each other on both sides of the cover block 321 in the third direction and are connected between the first sealing part 31 and the cover block 321. In the second direction, the width of the cover block 321 is greater than the width of the connecting block 322. By widening the width of the cover block 321 in the second direction, the shielding area between the cover block 321 and the insulating shell 20 is increased, thereby improving the sealing performance of the cover block 321 on the molded positioning groove 22. In this embodiment, the thickness of the cover block 321 in the first direction is smaller than the thickness of the connecting block 322 in the third direction. By increasing the thickness of the connecting block 322 in the third direction, the deformation of the connecting block 322 under pressure load is effectively reduced, thereby improving the sealing performance of the second sealing part 32 on the molded positioning groove 22. Moreover, increasing the thickness of the connecting block 322 can also effectively increase the load-bearing strength of the connecting block 322 itself, thereby improving the reliability of fixing the cover block 321 on the first sealing part 31 and extending the service life of the seal 30.

[0060] Please see Figures 1 to 3The connector 1 also includes a dust cover 40 connected to the insulating shell 20, which is used to prevent dust or lubricating oil from entering the interface 21 and contaminating the terminals 10 during transportation. The dust cover 40 includes a body 41, a plug 42 connected to the body 41, a handle 43 connected to the body 41, and a latch 44 connected to the handle 43. The main body 41 is roughly in the shape of a straight plate and covers the side of the first sealing part 31 away from the insulating shell 20. The plug 42 protrudes from the main body 41 toward the insulating shell 20. The first sealing part 31 is arranged around the outside of the plug 42. The plug 42 covers the interface 21 to prevent dust from entering the interface 21. The handle 43 is flexibly protruding from the periphery of the main body 41. The handle 43 protrudes from the side of the main body 41 away from the insulating shell 20. The latch 44 extends from the handle 43 toward the insulating shell 20 and engages with the insulating shell 20. The latch 44 is used to fix the dust cover 40 to the insulating shell 20. When installing or removing the dust cover 40, pressing the handle 43 will rotate the latch 44, thereby controlling the engagement between the latch 44 and the insulating shell 20, realizing quick installation and removal operations, and making it more convenient and faster to use. In this embodiment, the insulating shell 20 is provided with a receiving groove 23 and a fastening groove 24; multiple mating interfaces 21 are provided, and the receiving groove 23 surrounds the periphery of the multiple mating interfaces 21. The forming positioning groove 22 is provided on the side of the insulating shell 20 away from the receiving groove 23. The first sealing part 31 is provided in the receiving groove 23. By opening the receiving groove 23, the reliability of the connection between the first sealing part 31 and the insulating shell 20 is improved, and the contact area between the insulating shell 20 and the first sealing part 31 is increased, thereby improving the sealing performance; the fastening groove 24 is recessed in the insulating shell 20. On the outside of 0, the fastening groove 24 is connected to the receiving groove 23 and the molding positioning groove 22 respectively. The second sealing part 32 is embedded in the fastening groove 24 and the molding positioning groove 22. The cover block 321 is embedded in the molding positioning groove 22. The connecting block 322 is embedded in the fastening groove 24. The end of the latch 44 away from the handle 43 is inserted into the fastening groove 24 and located on the outside of the second sealing part 32. This allows the dust cover 40 to not only prevent dust from entering the interface 21, but also the latch 44 of the dust cover 40 to effectively protect the connecting block 322 of the sealing part 30, so as to avoid damage to the sealing part 30 during transportation.

[0061] In summary, this utility model provides a connector 1, which has the following advantages compared with the prior art:

[0062] 1. The sealing element 30 includes a first sealing portion 31 and a second sealing portion 32. The first sealing portion 31 surrounds the outer periphery of the interface 21 to seal the mating position of the connector 1 and the mating connector. The second sealing portion 32 covers the molding positioning groove 22 to seal the area where the terminal 10 is exposed outside the insulating shell 20 after the mold insert is removed from the insulating shell 20 after injection molding. The sealing element 30 simultaneously seals the molding positioning groove 22 and the interface 21, preventing dust or lubricating oil from entering the molding positioning groove 22 and contaminating the terminal 10, thereby improving the sealing performance of the connector 1. Moreover, since the second sealing portion 32 and the first sealing portion 31 are combined with the insulating shell 20, the bonding area is increased. The second sealing portion 32 improves the structural stability of the sealing element 30 bonded to the insulating shell 20, preventing the first sealing portion 31 from shifting, thereby improving the sealing performance at the mating position of the connector 1 and the mating connector.

[0063] 2. The interface 21 and the molding positioning groove 22 are arranged opposite each other on both sides of the insulating shell 20 in the first direction. The first sealing part 31 is installed along the first direction on the side of the insulating shell 20 where the interface 21 is provided, and the second sealing part 32 is installed along the second direction on the outside of the insulating shell 20 to cover the molding positioning groove 22. This allows the sealing element 30 to combine with the insulating shell 20 in different assembly directions, thereby limiting the sealing element 30 on the insulating shell 20 in different directions and improving the connection stability between the sealing element 30 and the insulating shell 20. Furthermore, since the second sealing part 32 includes a cover block 321 and connecting blocks 322 on both sides of the cover block 321, and the connecting blocks 322 are connected to the first sealing part 31, and the width dimension of the cover block 321 in the second direction is larger than the width dimension of the connecting blocks 322 in the second direction, it ensures that the cover block 321 covers the molding positioning groove 22 with a larger area, increasing the covering area between the cover block 321 and the insulating shell 20 and improving the sealing performance of the cover block 321 on the molding positioning groove 22.

[0064] 3. The thickness of the cover block 321 in the first direction is smaller than the thickness of the connecting block 322 in the third direction, which improves the load-bearing strength of the connecting block 322 between the cover block 321 and the first sealing part 31. Since the connector 1 will squeeze the first sealing part 31 when it is engaged with the mating connector, the first sealing part 31 will transfer part of the pressure it bears to the connecting block 322, which makes the connecting block 322 prone to certain deformation and reduces the sealing performance at the connecting block 322. By increasing the thickness of the connecting block 322 in the third direction, the deformation of the connecting block 322 under pressure can be effectively reduced, thereby preventing dust or lubricating oil from seeping into the connecting block 322, thus improving the sealing performance at the connecting block 322. Moreover, by increasing the thickness of the connecting block 322 in the third direction, the reliability of fixing the cover block 321 to the first sealing part 31 can also be effectively increased, and the service life of the seal 30 can be extended.

[0065] 4. A support block 313 is provided between the inner ring 311 and the outer ring 312. The support block 313 has a first gap groove 316 on the side closer to the insulating shell 20, and a second gap groove 317 on the side away from the insulating shell 20. The support block 313 is arc-shaped and arches into the first gap groove 316, so that when the connector 1 is engaged with the mating connector, the mating connector will squeeze the inner ring 311 and outer ring 312 on both sides of the second gap groove 317. The inner ring 311 and outer ring 312 on both sides of the second gap groove 317 will generate a certain outward expansion deformation to absorb part of the pressure, and the other part of the pressure will be directed towards the two sides of the first gap groove 316. The inner ring 311 and outer ring 312 on the side transmit the pressure. By arching the support block 313 into the first spacer groove 316 in an arc shape, the support block 313 can absorb a certain amount of pressure through its own deformation, thereby reducing the deformation of the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316. Since the second sealing part 32 is connected to the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316 of the first sealing part 31, the second sealing part 32 bears less deformation load from the first sealing part 31, thereby reducing the deformation of the second sealing part 32 and improving the stability of the second sealing part 32 in sealing the molded positioning groove 22.

[0066] 5. The inner ring 311 and outer ring 312 on both sides of the second spacer groove 317 are respectively provided with a first inclined surface 3110 and a second inclined surface 3120. The distance between the first inclined surface 3110 and the second inclined surface 3120 gradually decreases along the direction from the first spacer groove 316 to the second spacer groove 317, so that the inner ring 311 and outer ring 312 on both sides of the second spacer groove 317 can generate greater deformation and absorb more pressure load. Absorbing more pressure load means that less pressure load is transmitted to the second sealing part 32, so the deformation of the second sealing part 32 is also smaller, further improving the sealing stability of the second sealing part 32 to the molding positioning groove 22.

[0067] 6. The first rib 314 is provided to support the inner ring 311 and outer ring 312 on both sides of the first spacer groove 316, and the second rib 315 is provided to support the inner ring 311 and outer ring 312 on both sides of the second spacer groove 317. This improves the overall load-bearing strength of the first sealing part 31, prevents the first sealing part 31 from breaking due to long-term pressure load, and extends the service life of the seal 30.

[0068] 7. The height dimension of the first rib 314 in the first direction is smaller than the depth dimension of the first spacer groove 316 in the first direction, and the height dimension of the second rib 315 in the first direction is smaller than the depth dimension of the second spacer groove 317 in the first direction. This makes the hardness of the two ends of the first sealing part 31 in the first direction less than the hardness of the middle area. This ensures that the hardness of the first sealing part 31 at the contact point with the insulating shell 20 and the mating connector shell is lower, which is more conducive to generating elastic deformation and improving the sealing effect at the joint position of the connector 1 and the mating connector. At the same time, it also ensures that the hardness of the middle area of ​​the first sealing part 31 is greater and the load-bearing strength is greater, thus extending the service life of the seal 30.

[0069] 8. The dust cover 40 seals the interface 21 with the plug 42 to prevent dust or lubricating oil from entering the interface 21 and contaminating the terminal 10 during transportation. Furthermore, a handle 43 and a latch 44 connected to the handle 43 are provided on the main body 41. The handle 43 is flexibly set on the main body 41, and the latch 44 can be engaged with the insulating shell 20. When disassembling or assembling the dust cover 40, the latch 44 can be rotated by pressing the handle 43 to achieve quick assembly and disassembly between the dust cover 40 and the insulating shell 20, making it more convenient and faster to use.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connector, characterized in that, include: terminal; An insulating shell, the insulating shell being injection molded onto the outside of the terminal; at least one pair of interfaces and molding positioning grooves are respectively recessed on opposite sides of the insulating shell, and the terminal portion is exposed within the interfaces and molding positioning grooves; and A sealing element, combined with the insulating shell; the sealing element includes a first sealing portion and a second sealing portion connected to the first sealing portion, the first sealing portion being located on one side of the insulating shell and surrounding the outer periphery of the mating interface, and the second sealing portion being sleeved on the outside of the insulating shell and sealing the molded positioning groove.

2. A connector, characterized in that, include: terminal; An insulating shell is injection molded on the outside of the terminal; the insulating shell is recessed with at least one pair of interfaces and a molding positioning groove, and the terminal portion is exposed in the interface and the molding positioning groove, the molding positioning groove being used to cooperate with the injection mold to position the terminal during injection molding of the insulating shell; and A sealing element, combined with the insulating shell; the sealing element includes a first sealing portion and a second sealing portion connected to the first sealing portion, the first sealing portion surrounding the outer periphery of the mating interface, and the second sealing portion covering the molded positioning groove and exposed on the outside of the insulating shell.

3. The connector according to claim 1 or 2, characterized in that, The connector has a first direction, a second direction, and a third direction that intersect each other; the mating interface and the molded positioning groove are arranged opposite to each other on both sides of the insulating shell in the first direction, and the terminal extends along the second direction; The second sealing part includes a cover block and a connecting block connecting the cover block. The cover block covers the molded positioning groove. There are two connecting blocks, which are arranged opposite to each other on both sides of the cover block in a third direction. The two connecting blocks are connected between the first sealing part and the cover block. In the second direction, the width of the cover block is greater than the width of the connecting block.

4. The connector according to claim 3, characterized in that, The thickness of the cover block in the first direction is smaller than the thickness of the connecting block in the third direction.

5. The connector according to claim 1 or 2, characterized in that, The first sealing part includes an inner ring, an outer ring surrounding the outer side of the inner ring, and a support block connecting the inner ring and the outer ring; the inner ring and the outer ring are spaced apart, and the support block divides the space between the inner ring and the outer ring into a first spacer groove and a second spacer groove. The opening of the first spacer groove faces the inside of the insulating shell. The second sealing part connects the inner ring and the outer ring portions on both sides of the first spacer groove, and the support block is arc-shaped and arches into the first spacer groove.

6. The connector according to claim 5, characterized in that, The inner ring has a first inclined surface on the side away from the second spacer groove, and the outer ring has a second inclined surface on the side away from the second spacer groove. The distance between the first inclined surface and the second inclined surface gradually decreases along the direction from the first spacer groove to the second spacer groove.

7. The connector according to claim 5, characterized in that, A first rib and a second rib are also supported between the inner ring and the outer ring; the first rib is disposed in the first spacer groove, one end of the first rib is connected to the support block, and the other end of the first rib extends toward the opening of the first spacer groove; the second rib is disposed in the second spacer groove, one end of the second rib is connected to the support block, and the other end of the second rib extends toward the opening of the second spacer groove.

8. The connector according to claim 7, characterized in that, The connector has a first direction, and the first spacer groove and the second spacer groove are arranged opposite to each other on both sides of the support block along the first direction. The height dimension of the first rib in the first direction is smaller than the depth dimension of the first spacer groove in the first direction, and the height dimension of the second rib in the first direction is smaller than the depth dimension of the second spacer groove in the first direction.

9. The connector according to claim 1 or 2, characterized in that, The connector also includes a dust cover connected to an insulating shell. The dust cover includes a main body, a plug connected to the main body, a handle connected to the main body, and a latch connected to the handle. The plug protrudes from the main body toward the insulating shell and covers the interface. The handle is flexibly protruding from the periphery of the main body. The latch extends from the handle toward the insulating shell and engages with the insulating shell.

10. The connector according to claim 9, characterized in that, The insulating shell is provided with a receiving groove and a fastening groove; there are multiple mating interfaces, the receiving groove surrounds the periphery of the multiple mating interfaces, the first sealing part is disposed in the receiving groove, the molding positioning groove is disposed on the side of the insulating shell away from the receiving groove, the fastening groove connects the receiving groove and the molding positioning groove respectively, the second sealing part is embedded in the fastening groove and the molding positioning groove, and the end of the latch away from the handle is engaged in the fastening groove and located outside the second sealing part.

11. The connector according to claim 1 or 2, characterized in that, The terminal includes an outer conductive portion, an extension portion, and a contact portion connected in sequence; the outer conductive portion is exposed outside the insulating shell, the extension portion is covered by the insulating shell, one side of the contact portion is exposed inside the mating interface, and the other side of the contact portion is exposed inside the molded positioning groove and covered by the second sealing portion.

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