RJ45 connector and electrical assembly thereof

Abstract

The utility model discloses an RJ45 connector and an electrical assembly thereof, the electrical assembly comprises a pcb printed board, a first reed group located at the front side of the pcb printed board, and a wire clamping reed group located at the rear side of the pcb printed board, and by improving the layout of connecting holes on the pcb printed board, the layout of the first reed group and the layout of the wire clamping reed group, the wiring of the pcb printed board is improved. The electrical performance of the pcb printed board, the anti-interference performance and the conductivity of the front-end reed and the anti-interference performance and the conductivity of the rear-end wire clamping reed are improved respectively, so that the transmission performance and the anti-interference capability of the electrical assembly and the connector on the whole are stronger, the structure is simple, and the manufacturing is easier.

Description

Technical Field

[0001] The utility model belongs to the technical field of data communication, relates to a communication interface device, and particularly to an RJ45 connector. Background Art

[0002] In existing network communications, the transmission of network information requires the use of RJ45 connectors to connect cables or jumpers to devices, so as to reliably transmit signals. Because the RJ45 connector mainly relies on the direct connection between the reed in its internal electrical components and the PCB printed board to transmit signals, the impedance generated by its electrical components will be inconsistent with the impedance of other communication components such as cables, resulting in crosstalk, and it is easily affected by external interference, generating signal noise in its electrical components, which is an important factor affecting the quality of data transmission. The front interface of the RJ45 connector is a standard size, usually used to connect with standard crystal heads of the same specifications. At the same time, the rear end of the connector needs to be reliably connected to the network cable. The main method is: first press the network cable into the wire clamping reed at the rear end of the connector to connect the copper core in the cable to the connector, and then fix the cable with the wire crimping cover to protect the connection point.

[0003] In the prior art, the patent document with application number 2012102644983 discloses the spatial arrangement structure of the reeds of the RJ45 module, and the patent document with application number 2020202092827 discloses an RJ45 interface module, both of which include eight reeds, the front sections of the eight reeds are arranged parallel and equidistantly, and the rear sections of the eight reeds are bent and deformed to achieve an equidistant arrangement of the upper and lower layers, the front section of the reed has strict standards for docking with an external plug, and the rear section of the reed is used to connect to the PCB printed board inside the connector, and the PCB printed board is printed with transmission data. According to the circuit, the circuit design on the PCB directly affects the quality and efficiency of the signal transmission inside the connector, and the arrangement structure of the eight reeds affects the circuit design on the PCB. The eight reeds included in the above two patent documents are arranged in the traditional two-row equidistant manner, which causes complex wiring and high cost for the circuit layout on the PCB. Although they all use the reed staggered method to reduce signal noise, they cannot further improve the performance of data transmission quality and transmission rate, and it is difficult to adapt to higher quality network signal transmission requirements.

[0004] The existing connector and cable crimping methods have the following problems: 1) Professional crimping tools are required, so the on-site construction requirements are relatively high and the assembly efficiency is low; 2) The crimping cover is pressed into the connector at one time, which has great resistance and requires the use of tools, resulting in low assembly efficiency; 3) The cable outlet direction cannot be adjusted; 4) The connector and the crimping cover cannot be disassembled, which is inconvenient for maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide an RJ45 connector and an electrical component thereof to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electrical component of an RJ45 connector, comprising a pcb printed board, a first reed group located at the front side of the pcb printed board, and a line-clamping reed group located at the rear side of the pcb printed board, wherein the first reed group is composed of a first reed, a second reed, a third reed, a fourth reed, a fifth reed, a sixth reed, a seventh reed and an eighth reed, the front section of the reeds of the first reed group is arranged side by side and equidistantly in the left-right direction, the rear section of the reeds of the first reed group extends backward to the pcb printed board, and the rear end of the reeds of the first reed group is fixedly connected to the pcb printed board, the front end of the reeds of the line-clamping reed group is fixedly connected to the pcb printed board, the pcb printed board is printed with an electrical circuit, and the first reed group and the line-clamping reed group are electrically connected through the electrical circuit to transmit signals, and the rear section of the reeds of the first reed group is arranged in two layers above and below after being bent, wherein the first reed, the third reed, the fifth reed and the seventh reed are arranged in the lower layer and in the left-right direction, and the second reed, the fourth reed, the sixth reed and the eighth reed are arranged in the lower layer and in the left-right direction, and the second reed, the fourth reed, the sixth reed and the eighth reed are arranged in the lower layer and in the left-right direction. The eight reeds are arranged in the upper layer and in the left-right direction; the rear end of the first reed is aligned with the rear end of the second reed, the rear end of the fifth reed is aligned with the rear end of the fourth reed, the rear end of the seventh reed is aligned with the rear end of the eighth reed, the rear end of the second reed, the rear end of the fourth reed and the rear end of the eighth reed are equidistantly arranged, the rear end of the first reed, the rear end of the fifth reed and the rear end of the seventh reed are equidistantly arranged, and the rear end of the sixth reed is The rear end of the third reed is located between the rear end of the first reed and the rear end of the fifth reed, the rear section of the first reed and the rear section of the second reed are staggered in the upper and lower spaces, the rear section of the fifth reed and the rear section of the fourth reed are staggered in the upper and lower spaces, the rear section of the seventh reed and the rear section of the eighth reed are staggered in the upper and lower spaces, and the rear section of the third reed and the rear section of the sixth reed are parallel in the left and right spaces. The connection holes of the pcb printed board are arranged in pairs, so that the rear ends of the paired reeds can be as far away from each other as possible and aligned up and down, reducing the mutual interference between the reeds. The third reed and the sixth reed are parallel in space and cannot be staggered, so the connection holes on the pcb printed board are respectively placed between the connection holes of the first reed / fifth reed and the fourth reed / eighth reed, so that the third reed / sixth reed are as far away from each other as possible to avoid mutual interference. By arranging the upper and lower layers of reeds, the distance between the pairs of reeds can be increased, and at the same time, the relative positions between the pairs of reeds can be made as equidistant as possible to reduce and offset the mutual interference between the pairs of reeds, thereby improving the anti-interference ability.

[0008] Furthermore, the rear section of the first reed and the rear section of the second reed are first interlaced in an X shape during the process of extending from front to back, then interlaced left and right, and finally aligned up and down; the rear section of the fifth reed and the rear section of the fourth reed are first interlaced in an X shape during the process of extending from front to back, then interlaced left and right, and finally aligned up and down; the rear section of the seventh reed and the rear section of the eighth reed are first interlaced in an X shape during the process of extending from front to back, then interlaced left and right, and finally aligned up and down. The reeds have only one X-shaped intersection, so that the interference signals received by the two reeds cancel each other out, and each bent section is basically a straight line, with a simple structure, easy to manufacture and assemble.

[0009] Furthermore, the rear ends of the fourth reed, the sixth reed and the eighth reed are equidistantly arranged, and the rear ends of the first reed, the third reed and the fifth reed are equidistantly arranged, so as to reduce and offset the mutual interference generated between each pair of reeds, thereby improving the anti-interference ability.

[0010] Furthermore, the first spring assembly is installed in a fixing member to facilitate assembly.

[0011] Furthermore, the PCB printed board is provided with eight connection holes distributed in two layers, and the arrangement structure of the eight connection holes is the same as the arrangement structure of the rear ends of the eight reeds of the first reed group, so that the circuit design of the PCB printed board 5 is more optimized, and the interference signals of the reeds can be balanced and eliminated, thereby improving the electrical performance of the PCB printed board.

[0012] Furthermore, the wire clamping spring set is composed of eight wire clamping springs, two wire clamping springs are divided into a pair, a total of four pairs, and the front end of each pair of wire clamping springs is aligned up and down at a fixed distance, and the front ends of the four pairs of wire clamping springs are fixedly connected to the four corners of the PCB printed board and arranged in a rectangular shape. Each pair of wire clamping springs is far away from each other, and each pair of springs is parallel to each other, which can improve the electrical performance of the overall transmission of the wire clamping springs.

[0013] An RJ45 connector comprises the electrical components of the RJ45 connector mentioned above.

[0014] Furthermore, an RJ45 connector includes a connector housing provided with a first installation cavity extending from front to back and a wire crimping cover, the electrical components of the RJ45 connector are installed in the first installation cavity of the connector housing, the outer side surface of the A side cavity of the rear part of the first installation cavity is symmetrically provided with a pair of shaft connecting parts extending backward and obliquely outward, the inner side surface of the shaft connecting part is provided with a rotating groove for connecting the shaft, the wire crimping cover is an integrally formed structural part, and the wire crimping cover is sequentially divided into a shaft portion provided with a shaft, a shaft portion provided with a wire crimping groove, and a shaft portion provided with a shaft. The wire pressing part and a buckling part vertically connected to the wire pressing part, the shaft of the rotating shaft part of the wire pressing cover is rotatably connected in the rotating groove of the shaft connecting part of the connector shell, the wire pressing cover can be flipped to the buckling part and buckled with the outer side of the B-side cavity of the rear part of the first installation cavity, and the B-side cavity and the A-side cavity are arranged opposite to each other; when the wire pressing cover and the connector shell are buckled, the wire clamping spring is inserted into the wire pressing groove, and there is an activity space for the cable to move between the wire pressing cover and the connector shell, and the wire pressing part of the wire pressing cover is provided with a first through hole for the cable to enter and exit. During the wire crimping process, the wire crimping groove on the wire crimping cover close to the rotating shaft part contacts the corresponding wire holding spring first. Therefore, the cables in the wire crimping groove will be squeezed one by one instead of all cables being squeezed at the same time. Since the resistance generated by the squeezing is small, it can be operated without any tools, which reduces the on-site production requirements. The rotating shaft connecting part extending backward and obliquely outward and the wire crimping cover with a right-angle structure jointly create an internal activity space for the cable to move. Part of the cable is in the activity space. On the first hand, it ensures that the cable can be pressed into the wire crimping groove more conveniently. On the second hand, during the process of rotating and buckling the wire crimping cover, since there are part of the cables in the activity space, the cables will not be forcibly stretched, which reduces the risk of decoupling and improves the stability of the cable connection. On the third hand, it provides a guarantee for the subsequent change of the cable outlet direction. On the fourth hand, the internal installation space of the connector is larger, so that the pressure plate can be used to fix the wire holding spring to prevent the wire holding spring from being repeatedly stressed and deformed, thereby improving the service life.

[0015] Furthermore, the buckle part of the crimping cover is provided with a second through hole for the cable to enter and exit, and the crimping cover is provided with a slide groove connecting the first through hole and the first through hole, and the slide groove is an extrusion groove. The cable can freely choose to rotate and be led out from the vertical outlet or the 90° outlet 6 under the action of external force, and the cable will not be stretched and thus derailed.

[0016] Furthermore, it includes a pressure plate, the opposite sides of the pressure plate and the connector housing are fixedly connected by setting a snap structure, the pressure plate is provided with an extrusion groove for fixing the clamping spring sheet, the pressure plate presses the PCB printed board, in addition to fixing the PCB printed board, the pressure plate fixes the wire clamping spring sheet to prevent the wire clamping spring sheet from being repeatedly deformed by force, thereby improving the service life.

[0017] Compared with the prior art, the utility model has the following beneficial effects: by improving the layout of the connection holes on the PCB, the layout of the first spring group, and the layout of the wire clamping spring group, the electrical performance of the PCB, the anti-interference and conductivity of the front spring, and the anti-interference and conductivity of the rear wire clamping spring are improved respectively, so that the overall transmission performance and anti-interference ability of the electrical components are stronger, the structure is simple, and the manufacturing is also easier. Through the innovative design of the wire crimping cover structure and the arrangement of the wire clamping spring, the connector and the cable can be terminated completely without tools, with low requirements on the site and high assembly efficiency; the wire crimping cover can be easily installed and removed from the connector, which is convenient for on-site construction and use. The terminated cable can freely and conveniently choose whether to have a 90° or 180° outlet from the connector, which is flexible to use and can be applied to more occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the connector structure after the crimping cover is assembled; Figure 1 a is an oblique view from front to back and upward. Figure 1 b is an oblique view from back to front and upward.

[0020] Figure 2 The rear view of the connector.

[0021] Figure 3 It is a schematic diagram of the connector structure without the crimping cover assembled; Figure 3 a is an oblique view from back to front and downward. Figure 3 b is an upward oblique view looking from the back to the front.

[0022] Figure 4 It is a schematic diagram of the structure of the wire crimping cover, where Figure 4 a is an oblique view looking upward from the back to the front, Figure 4 b is an oblique view from front to back and upward.

[0023] Figure 5 This is an exploded view of the connector after the wire cover is assembled.

[0024] Figure 6 This is a cross-sectional view of the connector after the wire cover is assembled.

[0025] Figure 7 The electrical component structure diagram of the connector.

[0026] Figure 8 A top view of the connector's electrical components (fixtures not included).

[0027] Fig. 9 A three-dimensional diagram of the electrical components of the connector (excluding the fixings and wire clamping spring assembly)

[0028] In the figure, connector housing 1, wire pressing cover 2, first installation cavity 1-1, shaft connecting part 1-2, limit block 1-3, shaft part 2-1, wire pressing part 2-2, first through hole 2-22, second through hole 2-23, slide groove 2-24, limit hole 2-25, third through hole 2-26, gap space 2-27, buckle part 2-3, wire clamping spring group 3, pressure plate 4, PCB printed board 5, first spring group 6, first spring 6-1, second spring 6-2, third spring 6-3, fourth spring 6-4, fifth spring 6-5, sixth spring 6-6, seventh spring 6-7, eighth spring 6-8 and fixing part 7. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "front", "rear", "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-Figure 9 The accompanying drawings show the structure of the RJ45 connector and its electrical components in the present invention from various angles. Figure 6 The cross-section of the RJ45 connector along its central axis is shown. The directions such as "front", "rear", "up", "down", "left", and "right" mentioned in this description refer to Figure 6In the display direction, the connector interface is in the front direction, and the wire crimping cover 2 is in the rear direction.

[0032] Example 1, see Figure 7-Figure 9 , an electrical component of an RJ45 connector, comprising a pcb printed board 5, a first reed group 6 located on the front side of the pcb printed board 5, and a wire clamping reed group 3 located on the rear side of the pcb printed board 5, wherein the first reed group 6 is composed of a first reed 6-1, a second reed 6-2, a third reed 6-3, a fourth reed 6-4, a fifth reed 6-5, a sixth reed 6-6, a seventh reed 6-7, and an eighth reed 6-8, and the first group of reeds is evenly divided into a front section of the reed and a rear section of the reed, the front section of the reed is not crossed, and the rear section of the reed is crossed, therefore, it cannot be generally summarized that the reeds in the first reed group are arranged regularly in space, specifically, the front section of the reeds of the first reed group 6 is arranged side by side and equidistantly in the left-right direction, and the rear section of the reeds of the first reed group 6 extends backward The rear end of the reed of the first reed group 6 extends to the pcb printed board 5 and is fixedly connected to the pcb printed board 5. The fixed connection method can be selected from welding, riveting or crimping. The front end of the reed of the wire clamping reed group 3 is fixedly connected to the pcb printed board 5. The pcb printed board 5 is printed with an electrical circuit and the first reed group 6 and the wire clamping reed group 3 are electrically connected through the electrical circuit to transmit signals. The improvement of the utility model lies in that the rear section of the reed of the first reed group 6 is arranged in two layers after bending, wherein the first reed 6-1, the third reed 6-3, the fifth reed 6-5 and the seventh reed 6-7 are arranged in the upper layer and in the left-right direction, the second reed 6-2, the fourth reed 6-4, the sixth reed 6-6 and the eighth reed 6-8 are arranged in the lower layer and in the left-right direction, and the upper and lower positions are arranged in a Figure 6The rear end of the second reed 6-2 is aligned with the rear end of the first reed 6-1, the rear end of the fourth reed 6-4 is aligned with the rear end of the fifth reed 6-5, the rear end of the eighth reed 6-8 is aligned with the rear end of the seventh reed 6-7, the rear end of the second reed 6-2, the rear end of the fourth reed 6-4 and the rear end of the eighth reed 6-8 are equidistantly arranged, the rear end of the first reed 6-1, the rear end of the fifth reed 6-5 and the rear end of the seventh reed 6-7 are equidistantly arranged, the rear end of the sixth reed 6-6 is located at the rear of the fourth reed The rear end of the third reed 6-3 is located between the rear end of the first reed 6-1 and the rear end of the fifth reed 6-5, the rear section of the first reed 6-1 and the rear section of the second reed 6-2 are staggered in the upper and lower spaces, the rear section of the fifth reed 6-5 and the rear section of the fourth reed 6-4 are staggered in the upper and lower spaces, the rear section of the seventh reed 6-7 and the rear section of the eighth reed 6-8 are staggered in the upper and lower spaces, and the rear section of the third reed 6-3 and the rear section of the sixth reed 6-6 are parallel in the left and right spaces. The pcb printed board is provided with eight connection holes distributed in two layers, and the arrangement structure of the eight connection holes is the same as the arrangement structure of the rear ends of the eight reeds of the first reed group 6.

[0033] As we all know, two parallel reeds (or pairs) will interfere with each other's signals due to electromagnetic induction caused by the electrical signals flowing through each party. This interference will decrease with the square of the distance. Therefore, it is better to keep the reeds as far away from each other as possible within the space and standard range to reduce the interference between them. To resist external interference, we need to combine the staggered method to make the interference signals received by the two reeds cancel each other out.

[0034] In the utility model, the connection holes of the PCB printed board are arranged in pairs, so that the rear ends of the paired reeds can be as far away from each other as possible, and aligned up and down, reducing the mutual interference between the reeds. The third reed and the sixth reed are parallel in space and cannot be staggered. Therefore, the connection holes on the PCB printed board are respectively placed in the middle of the connection holes of the first reed / fifth reed and the fourth reed / eighth reed, so that the third reed / sixth reed are as far away from each other as possible to avoid mutual interference. Through the layout of the upper and lower layers of reeds, the distance between the paired reeds can be increased, and the relative positions between the paired reeds can be made equidistant as much as possible to reduce and offset the mutual interference between the pairs of reeds, thereby improving the anti-interference ability.

[0035] Since the first reed group 6 adopts an innovative row layout, the circuit design of the PCB printed board 5 is more optimized, the interference signal of the reed can be balanced and eliminated, and the electrical performance of the PCB printed board is improved.

[0036] Preferably, the rear section of the first reed 6-1 and the rear section of the second reed 6-2 are first interlaced in an X shape during their extension from front to back, then interlaced left to right, and finally aligned up and down; the rear section of the fifth reed 6-5 and the rear section of the fourth reed 6-4 are first interlaced in an X shape during their extension from front to back, then interlaced left to right, and finally aligned up and down; the rear section of the seventh reed 6-7 and the rear section of the eighth reed 6-8 are first interlaced in an X shape during their extension from front to back, then interlaced left to right, and finally aligned up and down. The existing reeds need to be bent up and down, left and right for many times, and the produced reeds have a lot of height deformation. When the materials are put together, they will cross each other. At the same time, because they are relatively thin and highly elastic, they are difficult to grasp and position with a robot or the like. The reed of the utility model has only one X-shaped crossover, so that the interference signals received by the two reeds cancel each other out, and each bent section is basically a straight line, with a simple structure, easy to manufacture and assemble, and excellent conductive and anti-interference properties. Each pair of reeds is aligned up and down after crossing left and right, which is beneficial to reduce mutual interference between paired reeds.

[0037] Preferably, the rear end portions of the fourth reed 6-4, the rear end portions of the sixth reed 6-6 and the rear end portions of the eighth reed 6-8 are equidistantly arranged, and the rear end portions of the first reed 6-1, the rear end portions of the third reed 6-3 and the rear end portions of the fifth reed 6-5 are equidistantly arranged, so as to reduce and offset the mutual interference generated between each pair of reeds, thereby improving the anti-interference ability.

[0038] In order to fix the first spring set 6 and facilitate the assembly of the electrical components, the first spring set 6 is installed in the fixing member 7, and the fixing member 7 is specifically an integrated plastic member.

[0039] Preferably, the wire clamping spring set 3 is composed of eight wire clamping springs, two wire clamping springs are divided into a pair, a total of four pairs, and the front end of each pair of wire clamping springs is aligned up and down at a fixed distance, and the front ends of the four pairs of wire clamping springs are fixedly connected to the four corners of the PCB printed board and arranged in a rectangular shape. Each pair of wire clamping springs is far away from each other, and each pair of springs is parallel to each other, which can improve the electrical performance of the overall transmission of the wire clamping springs.

[0040] Embodiment 2, an RJ45 connector, based on embodiment 1, comprises a connector housing 1 provided with a first mounting cavity 1-1 which runs through from front to back and a wire crimping cover 2, the connector housing 1 being an integrally molded plastic part, the electrical components of the RJ45 connector being installed in the first mounting cavity 1-1 of the connector housing 1, the outer side surface of the cavity on the A side of the rear part of the first mounting cavity 1-1 of the connector housing 1 being symmetrically provided with a pair of rotating shaft connecting parts 1-2 extending backward and obliquely outward, preferably, the rotating shaft connecting part 1-2 is obliquely outwardly angled θ (rotating shaft connecting part 1-2) The central axis of the connecting part 1-2 and the horizontal line) is between 30-50 degrees, and the best is about 40-45 degrees. The rotating shaft connecting part 1-2 can be fully utilized to save material usage costs. The inner side surface of the rotating shaft connecting part 1-2 is provided with a rotating groove 1-21 for the rotating shaft connection. The wire pressing cover 2 is sequentially divided into a rotating shaft part 2-1 provided with a rotating shaft 2-11, a wire pressing part 2-2 provided with a wire pressing groove 2-21 and a buckle part 2-3 vertically connected to the wire pressing part 2-2. Preferably, the wire pressing cover 2 is an integrally molded plastic part to ensure the structural strength and stability of the wire pressing cover 2. The rotating shaft 2-11 of the rotating shaft portion 2-1 of the crimping cover 2 is rotatably connected to the rotating groove 1-21 of the rotating shaft connecting portion 1-2 of the connector housing 1. The crimping cover 2 can be turned over to the buckle portion 2-3 to buckle with the outer side surface of the B-side cavity of the rear part of the first installation cavity 1-1 of the connector housing 1. Specifically, a corresponding buckle structure is set on the buckle portion 2-3 and the outer side surface of the B-side cavity for buckling. The B-side cavity is relatively arranged with the A-side cavity. For details, refer to Figure 6 , the A side cavity is the upper cavity, and the B side cavity is the lower cavity, but not limited to Figure 6 The displayed orientation can also be the left cavity and the right cavity, which can be selected as needed; when the wire crimping cover 2 and the connector shell 1 are buckled, the wire clamping spring 3 is inserted into the wire crimping groove 2-21, and there is a movable space for the cable to move between the wire crimping cover 2 and the connector shell 1. The wire crimping part 2-2 of the wire crimping cover 2 is provided with a first through hole 2-22 for the cable to enter and exit. Preferably, the first through hole 2-22 is located in the middle of the wire crimping part 2-2 to facilitate the cable to enter and exit.

[0041] In this embodiment, the RJ45 connector wire clamping assembly process: first pass the cable through the first through hole 2-22 of the wire crimping part 2-2, and then press it into the wire crimping groove 7. After fixing it, insert the rotating shaft 10 of the wire crimping cover 2 into the rotating groove 1-21 of the rotating shaft connecting part 1-2 of the connector shell 1, and then flip the wire crimping cover 2 until the buckling part 2-3 of the wire crimping cover 2 is buckled with the outer side surface of the connector shell 1. During the wire crimping process, the wire crimping cover 2 rotates, and the wire clamping spring 3 is inserted into the wire crimping groove 2-21. The two squeeze each other and compress the cable. Since the wire clamping spring 3 is in the shape of a metal blade, during the cable compression process, the wire clamping spring 3 will pierce the outer skin of the cable and make reliable contact with the copper core of the cable. It should be emphasized that during the wire crimping process, the wire crimping groove 2-21 on the wire crimping cover 2 close to the shaft portion 2-1 first contacts the corresponding wire clamping spring 3. Therefore, the cables in the wire crimping groove 2-21 will be squeezed one by one instead of 8 cables being squeezed at the same time. Since the resistance generated by the squeezing is small, the operation can be implemented without any tools, which reduces the on-site production requirements.

[0042] In addition to the above advantages, in this embodiment, the shaft connection part 1-2 extending backward and obliquely outward and the wire crimping cover 2 with a right-angle structure jointly create an internal activity space for the cable to move. Part of the cable can move freely in the activity space. On the first hand, it ensures that the cable can be pressed into the wire crimping groove more conveniently; on the second hand, during the process of rotating and buckling the wire crimping cover 2, since part of the cable is in the activity space, the cable will not be forcibly stretched, thereby reducing the risk of derailment and improving the stability of the cable connection; on the third hand, it provides a guarantee for the subsequent change of the cable outlet direction; on the fourth hand, it ensures that the internal installation space of the connector is larger, so as to realize the installation of the pressure plate to fix the wire clamping spring sheet 3, prevent the wire clamping spring sheet 3 from being repeatedly stressed and deformed, and improve the service life. See other embodiments for details.

[0043] Embodiment 2, on the basis of embodiment 1, the buckle part 2-3 of the crimping cover 2 is provided with a second through hole 2-23 for the cable to enter and exit, the crimping cover 2 is provided with a slide groove 2-24 connecting the first through hole 2-22 and the second through hole 2-23, the slide groove 2-24 is a through extrusion groove, the groove width of the extrusion groove is smaller than the aperture of the first through hole 2-22 and the second through hole 2-23 and slightly smaller than the wire diameter of the cable, so as to ensure that the cable will not change between the first through hole 2-22 and the second through hole 2-23 when no external force is applied to the cable. After the cable is installed, the cable must be subjected to external force to change the entrance and exit of the cable along the slide groove 2-24, and the 180° lead-out or 90° lead-out can be freely selected, and the cable will not be stretched, thereby avoiding derailment.

[0044] Preferably, the inner side surface of the shaft connecting portion 1-2 of the connector housing 1 is provided with a track groove 1-22 connected to the rotation groove 1-21, and the groove width of the track groove 1-22 is slightly larger than the shaft diameter of the shaft 2-11. The track groove 1-22 is used to more conveniently assemble the wire crimping cover 2 and the connector housing 1.

[0045] Preferably, the outer side surface of the B side cavity of the connector housing 1 is provided with a limit block 1-3, and the buckle connection portion 2-3 of the wire crimping cover 2 is provided with a limit hole 2-25, and the limit hole 2-25 is connected to the second through hole 2-23. Considering the yielding effect of the second through hole 2-23 and the slide groove 2-24, it is more appropriate to open the limit hole 2-25 on the wire crimping cover 2.

[0046] Preferably, a third through hole 2-26 is formed on the contact surface between the limiting hole 2-25 of the buckle 2-3 of the wire crimping cover 2 and the limiting block 1-3. The wire crimping cover 2 can be pushed open or pried through the third through hole 2-26, so as to facilitate disassembly. In addition, there is a gap space 2-27 between the limiting hole 2-25 and the limiting block 1-3, which is also convenient for pushing open or prying the wire crimping cover 2.

[0047] Embodiment 3, based on Embodiments 1 and 2, further comprises a pressing plate 4, the opposite sides of the pressing plate 4 and the connector housing 1 are fixedly connected by setting a buckle structure, and the pressing plate 4 is provided with an extrusion groove for fixing the wire clamping spring 3, and the wire clamping spring 3 passes through the extrusion groove. The pressing plate 4 fixes the wire clamping spring 3, prevents the wire clamping spring 3 from being deformed by repeated force, and improves the service life.

[0048] The pressing plate 4 is in tight contact with the PCB printing board 5 to press the PCB printing board 5 . The pressing plate 4 can play a role in fixing the PCB printing board 5 .

[0049] In summary, the beneficial effects of the utility model are as follows: by improving the layout of the connection holes on the PCB, the layout of the first spring group, and the layout of the wire clamping spring group, the electrical performance of the PCB, the anti-interference and conductivity of the front spring, and the anti-interference and conductivity of the rear wire clamping spring are improved respectively, so that the overall transmission performance and anti-interference ability of the electrical components are stronger, the structure is simple, and the manufacturing is also easier. Through the innovative design of the wire crimping cover structure and the arrangement of the wire clamping spring, the connector and the cable can be terminated completely without tools, with low requirements on the site and high assembly efficiency; the wire crimping cover can be easily installed and removed from the connector, which is convenient for on-site construction and use. The terminated cable can freely choose whether to have a 90° or 180° outlet from the connector, which is flexible to use and can be applied to more occasions.

[0050] The above is only the preferred implementation of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of this template.

[0051] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An electrical component of an RJ45 connector, comprising a pcb printed board, a first reed group located at the front side of the pcb printed board, and a wire clamping reed group located at the rear side of the pcb printed board, wherein the first reed group consists of a first reed, a second reed, a third reed, a fourth reed, a fifth reed, a sixth reed, a seventh reed, and an eighth reed, wherein the front section of the reeds of the first reed group is arranged side by side and equidistantly in the left-right direction, the rear section of the reeds of the first reed group extends backward to the pcb printed board, and the rear end of the reeds of the first reed group is fixedly connected to the pcb printed board, the front end of the reeds of the wire clamping reed group is fixedly connected to the pcb printed board, the pcb printed board is printed with an electrical circuit, and the first reed group and the wire clamping reed group are electrically connected through the electrical circuit to transmit signals, characterized in that: The rear sections of the reeds of the first reed group are arranged in two layers after being bent, wherein the first reed, the third reed, the fifth reed and the seventh reed are arranged in one layer in the left-right direction, and the second reed, the fourth reed, the sixth reed and the eighth reed are arranged in one layer in the left-right direction; the rear end of the first reed is aligned with the rear end of the second reed, the rear end of the fourth reed is aligned with the rear end of the fifth reed, the rear end of the seventh reed is aligned with the rear end of the eighth reed, the rear ends of the second reed, the fourth reed and the eighth reed are equidistantly arranged, and the first reed The rear ends of the first reed, the fifth reed and the seventh reed are equidistantly arranged, the rear end of the third reed is located between the rear ends of the first reed and the fifth reed, the rear end of the sixth reed is located between the rear ends of the fourth reed and the eighth reed, the rear section of the first reed and the rear section of the second reed are staggered in the upper and lower spaces, the rear section of the fourth reed and the rear section of the fifth reed are staggered in the upper and lower spaces, the rear section of the seventh reed and the rear section of the eighth reed are staggered in the upper and lower spaces, and the rear section of the third reed and the rear section of the sixth reed are parallel in the left and right spaces.

2. The electrical assembly of the RJ45 connector according to claim 1, characterized in that: The rear ends of the fourth reed, the sixth reed and the eighth reed are equidistantly arranged, and the rear ends of the first reed, the third reed and the fifth reed are equidistantly arranged.

3. The electrical assembly of the RJ45 connector according to claim 1, characterized in that: The first spring group is installed in the fixing member.

4. The electrical assembly of the RJ45 connector according to claim 1, characterized in that: The PCB printed board is provided with eight connection holes distributed in two layers, and the arrangement structure of the eight connection holes is the same as the arrangement structure of the rear ends of the eight reeds of the first reed group.

5. The electrical component of the RJ45 connector according to any one of claims 1 to 4, characterized in that: The wire-holding spring group consists of eight wire-holding springs, two of which are divided into a pair, a total of four pairs, and the front end of each pair of wire-holding springs is aligned up and down at a fixed distance. The front end of the four pairs of wire-holding springs are fixedly connected to the four corners of the PCB printed board and arranged in a rectangular shape.

6. An RJ45 connector, characterized in that: An electrical component comprising the RJ45 connector according to any one of claims 1 to 5.

7. An RJ45 connector as claimed in claim 6, characterized in that: The invention comprises a connector shell provided with a first installation cavity which runs through from front to back and a wire crimping cover, wherein the electrical components of the RJ45 connector are installed in the first installation cavity of the connector shell, wherein the outer side surface of the cavity on the A side of the rear part of the first installation cavity is symmetrically provided with a pair of rotating shaft connecting parts which extend backward and obliquely outward, wherein the inner side surface of the rotating shaft connecting part is provided with a rotating groove for connecting the rotating shaft, wherein the wire crimping cover is an integrally formed structural part, wherein the wire crimping cover is sequentially divided into a rotating shaft part provided with a rotating shaft, a wire crimping part provided with a wire crimping groove and a buckling part which is vertically connected to the wire crimping part, wherein the rotating shaft of the rotating shaft part of the wire crimping cover is rotatably connected in the rotating groove of the rotating shaft connecting part of the connector shell, wherein the wire crimping cover can be flipped over to buckle the buckling part with the outer side surface of the cavity on the B side of the rear part of the first installation cavity, wherein the cavity on the B side is arranged opposite to the cavity on the A side; wherein when the wire crimping cover and the connector shell are buckled, the wire clamping spring is inserted into the wire crimping groove, wherein there is an activity space for the cable to move between the wire crimping cover and the connector shell, and the wire crimping part of the wire crimping cover is provided with a first through hole for the cable to enter and exit.

8. An RJ45 connector as claimed in claim 7, characterized in that: The buckle part of the crimping cover is provided with a second through hole for the cable to enter and exit, and the crimping cover is provided with a slide groove connecting the first through hole and the first through hole, and the slide groove is an extrusion groove.

9. An RJ45 connector as claimed in claim 8, characterized in that: It comprises a pressing plate, the opposite sides of the pressing plate and the connector housing are fixedly connected by setting a snap structure, an extrusion groove for fixing a snap spring sheet is arranged on the pressing plate, and the pressing plate presses a PCB printed board.

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