Signal cable tail cover and socket rear shell assembly

Abstract

The utility model relates to the field of electric connector assemblies, in particular to a signal cable tail cover and a socket rear shell assembly. The signal cable tail cover is used for solving the technical problems that a power cable and a signal cable tail cover on a socket rear shell assembly of an existing charging socket are of an integrated structure, and installation and maintenance are inconvenient. The socket rear shell assembly is used for solving the technical problem that an existing daily mark charging socket is inconvenient to install and overhaul. The signal cable tail cover comprises a cover body. The cover body is provided with a cable through hole used for installing a signal cable in a penetrating mode, the edge of the cover body is provided with two avoiding concave parts which are symmetrically arranged left and right and used for avoiding a power cable installation cylinder on a socket rear shell, and an installation structure which extends in the axial direction of the signal cable installation cylinder and is used for fixedly installing the signal cable installation cylinder on the socket rear shell. Through the arrangement, the signal cable installation cylinder can be independent of the power cable installation cylinder to arrange the signal cable tail cover, the use is flexible, and the operation is easy.

Description

Technical Field

[0001] The utility model belongs to the field of electrical connector components, and particularly relates to a signal cable end cover and a socket rear shell assembly. Background Art

[0002] The existing charging sockets for new energy vehicles on the market are mainly of three types: national standard, Japanese standard, and European standard. The structure of the Japanese standard charging socket can refer to the charging socket disclosed in the Chinese utility model patent with the authorization announcement number CN219806713U. It usually includes a socket housing that is split-connected front and rear. The socket housing includes a front shell assembly (i.e., a flange mounting plate and a closed cover) for mounting on an adapted vehicle, and a rear shell assembly (i.e., a DC front mounting plate and a DC end cover). A cylindrical structure is provided on the DC front mounting plate, and a DC rear mounting plate is installed inside the cylindrical structure. Two sets of signal cable mounting cylinders and two power cable mounting cylinders are provided on the DC rear mounting plate. The two power cable mounting cylinders and the two sets of signal cable mounting cylinders are arranged in a cross shape on the socket rear shell, that is, the two power cable mounting cylinders are arranged horizontally side by side, and the two sets of signal cable mounting cylinders are respectively arranged on both sides of the two power cable mounting cylinders and are vertically arranged in parallel opposite the position between the two power cable mounting cylinders. One end of the signal terminal of the Japanese standard charging socket is inserted into the corresponding signal cable mounting cylinder for conductive connection with the signal cable; one end of the power terminal of the Japanese standard charging socket is inserted into the corresponding power cable mounting cylinder for conductive connection with the power cable. The power cable and the signal cable need to be pre-inserted into an integrated DC cable sealing body and a DC end cover before assembly. After the power cable and the signal cable are conductively connected to the corresponding power terminal and signal terminal in place, the DC cable sealing body is hermetically installed between all the cables and the aforementioned cylindrical structure, and finally the DC end cover is buckled on the opening of the cylindrical structure to ensure the sealing between all the cables and the socket housing.

[0003] In the above structure, the DC end cover is integrated, that is, the same DC end cover needs to pass through all the power cables and signal cables, and is integrally buckled on the opening of the cylindrical structure of the DC front mounting plate after all the power cables, signal cables, and the DC cable sealing body are installed in place. This means that during installation, the DC end cover needs to be pre-sleeved on all the signal cables and power cables at the same time, that is, the power cables and signal cables must be assembled simultaneously. In this way, the installation flexibility is poor, which is not conducive to improving the assembly efficiency. When repairing or replacing one of the power cables or any one group of signal cables, after the technician opens the DC end cover, all the power cables and the DC cable sealing body of the signal cables will be exposed. On the one hand, this is not conducive to ensuring the sealing of the cables that do not need to be repaired. On the other hand, the repair flexibility is poor, which is not conducive to improving the efficiency of repairing and replacing cables. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a signal cable tail cover to solve the technical problem that the tail covers of the power cable and the signal cable on the socket rear shell assembly of the existing charging socket adopt an integrated structure, which is inconvenient to install and repair. The purpose of the utility model is to provide a socket rear shell assembly to solve the technical problem that the existing Japanese standard charging socket is inconvenient to install and repair.

[0005] The utility model adopts the following technical solutions:

[0006] A signal cable tail cover comprises a cover body used to be separately installed at the tube mouth of one of the signal cable installation tubes of the socket rear shell; the cover body is provided with a cable through hole for passing the signal cable, the edge of the cover body is provided with two avoidance recesses which are symmetrically arranged on the left and right for avoiding the power cable installation tube on the socket rear shell, and an installation structure which extends axially along the signal cable installation tube and is used to fix the signal cable installation tube on the socket rear shell.

[0007] Furthermore, the avoidance recess is an arc-shaped recess adapted to the power cable installation barrel.

[0008] Furthermore, the mounting structure includes a fixing buckle or a fixing claw arranged on the cover body at a circumferential side position of the avoiding recess.

[0009] Furthermore, the fixing buckles or fixing claws are arranged in pairs, and the two fixing buckles or fixing claws in the same pair are arranged symmetrically.

[0010] Furthermore, the mounting structure includes a retaining arm disposed between two avoidance recesses on the cover body, and the retaining arm is used to fit and retain on the outer circumferential surface of the signal cable mounting tube along the axial direction of the signal cable mounting tube after the cover body is installed at the tube mouth of the signal cable mounting tube.

[0011] Furthermore, the retaining arm is provided with a guide wing extending along the axial direction of the signal cable mounting tube, and the guide wing is used for being engaged and guidingly matched with a guide engaging groove provided on the rear shell of the socket.

[0012] Furthermore, the cover body is a circular cover body, and the guide wing plate is arranged at a portion with a shorter arc length between two arc-shaped recessed portions on the cover body.

[0013] Furthermore, a retaining cylinder section is provided at the edge of the hole of the cable through hole on the side facing away from the signal cable installation cylinder.

[0014] Furthermore, the cable penetration is a single-line penetration.

[0015] Beneficial effects: The present utility model proposes a brand-new signal cable end cap applicable to a charging socket. The signal cable end cap of the present utility model includes a cap body. A cable through hole for threading a signal cable is provided on the cap body. There are two symmetrically arranged left and right avoidance recesses on the edge of the cap body for avoiding the power cable installation cylinders on the socket rear case, and an installation structure extending along the axial direction of the signal cable installation cylinder for fixedly installing on the signal cable installation cylinder on the socket rear case. During installation, the signal cable end cap of the present utility model can be separately installed at the mouth of one of the signal cable installation cylinders on the socket rear case. Due to the existence of the avoidance recesses, the signal cable end cap will not interfere with the two power cable installation cylinders on the socket rear case. Such a setting enables any signal cable installation cylinder on the socket rear case to be provided with a signal cable end cap independently of the power cable installation cylinder and the other signal cable installation cylinder. When installing, inspecting, or replacing the signal cable or the power cable, there is no interference between the signal cable and the power cable, and there is also no interference between the signal cable groups installed in different signal cable installation cylinders. Therefore, any group of signal cables or any power cable can be separately disassembled, installed, inspected, and replaced. This makes it flexible and easy to operate, thus greatly improving the efficiency of assembling, inspecting, and replacing cables of the target charging socket.

[0016] A socket rear case assembly includes a socket rear case, on which there are paired signal cable installation cylinders and paired power cable installation cylinders, and the paired signal cable installation cylinders and the paired power cable installation cylinders are arranged in a cross shape; an independent signal cable end cap is installed at the mouth of the signal cable installation cylinder; the signal cable end cap includes a cap body for separately installing at the mouth of one of the signal cable installation cylinders on the socket rear case; a cable through hole for threading a signal cable is provided on the cap body, there are two symmetrically arranged left and right avoidance recesses on the edge of the cap body for avoiding the power cable installation cylinders on the socket rear case, and an installation structure extending along the axial direction of the signal cable installation cylinder for fixedly installing on the signal cable installation cylinder on the socket rear case.

[0017] Further, the avoidance recess is an arc-shaped recess adapted to the power cable installation cylinder.

[0018] Further, the installation structure includes fixing buckles or fixing claws provided at the circumferential side position of the avoidance recess on the cap body.

[0019] Further, the fixing buckles or fixing claws are provided in pairs, and the two fixing buckles or fixing claws in the same pair are symmetrically arranged left and right.

[0020] Furthermore, the mounting structure includes a retaining arm disposed between two avoidance recesses on the cover body, and the retaining arm is used to fit and retain on the outer circumferential surface of the signal cable mounting tube along the axial direction of the signal cable mounting tube after the cover body is installed at the tube mouth of the signal cable mounting tube.

[0021] Furthermore, the retaining arm is provided with a guide wing extending along the axial direction of the signal cable mounting tube, and the guide wing is used for being engaged and guidingly matched with a guide engaging groove provided on the rear shell of the socket.

[0022] Furthermore, the cover body is a circular cover body, and the guide wing plate is arranged at a portion with a shorter arc length between two arc-shaped recessed portions on the cover body.

[0023] Furthermore, a retaining cylinder section is provided at the edge of the hole of the cable through hole on the side facing away from the signal cable installation cylinder.

[0024] Furthermore, the cable penetration is a single-line penetration.

[0025] Beneficial effects: The utility model improves the rear shell assembly of the existing Japanese standard charging socket. The socket rear shell assembly of the utility model includes a socket rear shell. Compared with the prior art, the key point of the utility model is that a pair of signal cable installation barrels and a pair of power cable installation barrels are arranged on the socket rear shell, and the pair of signal cable installation barrels and the pair of power cable installation barrels are arranged in a cross shape. An independent signal cable tail cover is installed at the barrel mouth of the signal cable installation barrel. The signal cable tail cover includes a cover body, and the cover body is provided with a cable through hole for passing the signal cable. The edge of the cover body is provided with two avoidance recesses that are symmetrically arranged on the left and right for avoiding the power cable installation barrel on the socket rear shell, and an installation structure that extends along the axial direction of the signal cable installation barrel and is fixedly installed on the signal cable installation barrel on the socket rear shell. During installation, the signal cable tail cover of the utility model can be installed separately at the barrel mouth of one of the signal cable installation barrels on the socket rear shell, and due to the presence of the avoidance recess, the signal cable tail cover will not interfere with the power cable installation barrel on the socket rear shell. This arrangement allows any signal cable installation barrel on the back shell of the socket to be independently equipped with a signal cable tail cover from the power cable installation barrel and another signal cable installation barrel. When installing, repairing, or replacing signal cables or power cables, the signal cables and power cables do not interfere with each other, and there is no interference between signal cable groups installed in different signal cable installation barrels. Therefore, any group of signal cables or any power cable can be disassembled, repaired, or replaced separately. This is flexible to use and easy to operate, and can greatly improve the efficiency of assembling, repairing, and replacing cables for Japanese standard charging sockets. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1The front view of a Japanese standard charging socket adopting the socket rear shell assembly of the present utility model;

[0027] Figure 2 is Figure 1 a sectional view taken along A-A;

[0028] Figure 3 is Figure 1 the off-axis view of the socket rear shell in [the figure];

[0029] Figure 4 is Figure 3 the front view of [the figure];

[0030] Figure 5 is Figure 1 the off-axis view of the signal cable end cap in [the figure];

[0031] Figure 6 is Figure 5 the off-axis view along another direction;

[0032] Figure 7 is Figure 5 the front view of [the figure];

[0033] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. Socket front shell assembly; 2. Socket rear shell assembly; 3. Socket front shell; 4. Mounting flange; 5. Socket rear shell; 6. Signal cable mounting cylinder; 7. Power cable mounting cylinder; 8. Power cable end cap; 9. Signal cable end cap; 10. Cable perforation; 11. Avoidance recess; 12. Guide wing plate; 13. Fixed buckle; 14. Guide card slot; 15. Matching claw; 16. Retaining cylinder section; 17. Cover body; 18. Retaining arm. Detailed implementation mode

[0034] The features and performance of the present utility model will be further described in detail below in conjunction with embodiments.

[0035] The scheme principle of the socket rear shell assembly of the present utility model is as follows:

[0036] A socket rear shell assembly includes a socket rear shell, on which there are paired signal cable mounting cylinders and paired power cable mounting cylinders, and the paired signal cable mounting cylinders and the paired power cable mounting cylinders are arranged in a cross shape. An independent signal cable end cap is installed at the mouth of the signal cable mounting cylinder. The signal cable end cap includes a cover body for being separately installed at the mouth of one of the signal cable mounting cylinders on the socket rear shell. The cover body is provided with a cable perforation for threading the signal cable, and at the edge of the cover body, there are two avoidance recesses which are symmetrically arranged left and right for avoiding the power cable mounting cylinders on the socket rear shell, and an installation structure for fixedly installing on the signal cable mounting cylinder on the socket rear shell and extending along the axial direction of the signal cable mounting cylinder.

[0037] During installation, the signal cable end cover of the present utility model can be separately installed at the opening of one of the signal cable installation cylinders on the rear socket housing. Due to the existence of the avoidance recess, the signal cable end cover will not interfere with the power cable installation cylinder on the rear socket housing. Such a setting enables any signal cable installation cylinder on the rear socket housing to set the signal cable end cover independently of the power cable installation cylinder and the other signal cable installation cylinder. When installing, overhauling, or replacing the signal cable or power cable, there is no interference between the signal cable and the power cable, and there is also no interference between the signal cable groups installed in different signal cable installation cylinders. Therefore, any group of signal cables or any power cable can be disassembled, overhauled, and replaced separately. This makes it flexible and easy to operate, thus greatly improving the efficiency of assembling, overhauling, and replacing cables of the target charging socket.

[0038] Embodiment of the rear socket housing assembly of the present utility model:

[0039] For ease of explanation, this embodiment describes the target charging socket adopting the rear socket housing assembly 2 of the present utility model to illustrate the structure, function, and effect of the rear socket housing assembly 2 of the present utility model.

[0040] A target charging socket, the structure of which can be referred to Figure 1 、 Figure 2 as shown, includes a socket front housing assembly 1 and a socket rear housing assembly 2. The socket front housing assembly 1 includes a socket front housing 3, and an installation flange 4 is provided on the socket front housing 3 for the target charging socket to be fixedly installed on the adapter device. The socket rear housing assembly 2 includes a socket rear housing 5, and the socket rear housing 5 and the socket front housing 3 are connected into one body by fasteners.

[0041] The structure of the socket rear housing 5 can be referred to Figure 3 、 Figure 4As shown in the figure, two signal cable installation cylinders 6 and two power cable installation cylinders 7 are provided thereon. The two power cable installation cylinders 7 and the two signal cable installation cylinders 6 are arranged in a cross shape on the socket rear shell 5, that is, the two power cable installation cylinders 7 are arranged side by side horizontally, and the two signal cable installation cylinders 6 are respectively arranged on both sides of the two power cable installation cylinders 7 and are vertically arranged side by side facing the position between the two power cable installation cylinders 7. The signal cable installation cylinder 6 is used to accommodate a group of signal cables, that is, the group of signal cables are conductively connected to the signal terminals on the target charging socket in the signal cable installation cylinder 6. The power cable installation cylinder 7 is used to accommodate power cables, that is, the power cables are conductively connected to the power terminals on the target charging socket in the power cable installation cylinder 7. In this embodiment, a group of signal cables includes four signal cables. In other embodiments, a group of signal cables may also include one, two, three or even more than five signal cables. The number of signal cables arranged in a single signal cable installation cylinder 6 depends on the specific signal transmission requirements. The statement "a group of signal cables includes four signal cables" in this embodiment is only a specific example for the convenience of explanation.

[0042] An independent power cable end cover 8 is installed at the opening of the power cable installation cylinder 7. The structure of the power cable end cover 8 is an existing independent end cover and will not be elaborated here. An independent signal cable end cover 9 is installed at the opening of the signal cable installation cylinder 6. The structure of the signal cable end cover 9 can be referred to Figures 5 - 7 As shown in the figure, it includes a cover body 17. A cable through hole 10 for threading signal cables is provided on the cover body 17. The number of cable through holes 10 corresponds to the number of cables specifically installed in the signal cable installation cylinder 6. Two symmetrically arranged left and right avoidance recesses 11 for avoiding the power cable installation cylinder 7 on the socket rear shell 5 are provided at the edge of the cover body 17, and an installation structure for fixedly installing the signal cable installation cylinder 6 on the socket rear shell 5 extending along the axis of the signal cable installation cylinder 6.

[0043] The key point of this embodiment is that it can be referred to Figures 5 - 7 As shown in the figure, the notch contour of the avoidance recess 11 is an arc adapted to the power cable installation cylinder 7. Such a setting can make the edge of the avoidance recess 11 of the signal cable end cover 9 as close as possible to the power cable installation cylinder 7 after the signal cable end cover 9 is installed on the signal cable installation cylinder 6. Therefore, the signal cable end cover 9 has a larger end cover area to thread signal cables, which can prevent the cable through holes 10 on the signal cable end cover 9 from being arranged too densely, and thus avoid the difficulty of installing signal cables caused by too small an end cover area or too dense an arrangement of cable through holes 10. Of course, in other embodiments, the notch contour of the avoidance recess 11 can also be a conventional geometric shape such as a rectangle or a triangle, as long as the opening size and opening depth of the avoidance recess 11 are sufficient to avoid the power cable installation cylinder 7.

[0044] The installation structure specifically includes fixed buckles 13 or fixed claw catches disposed at circumferentially adjacent positions of the avoidance recess 11 on the cover body 17. Correspondingly, the signal cable installation cylinder 6 and the power cable installation cylinder 7 are arranged to be in zero-to-zero fit. The mating claw catches 15 on the signal cable installation cylinder 6 adapted to the fixed buckles 13, or the mating buckles adapted to the fixed claw catches, are disposed at positions other than the zero-to-zero fit region between the signal cable installation cylinder 6 and the power cable installation cylinder 7. Such an arrangement is conducive to reducing the distance between the signal cable installation cylinder 6 and the power cable installation cylinder 7, thereby making the structural layout on the socket rear shell assembly 2 more compact and facilitating reducing the occupied space of the target charging socket adopting the above structure. Of course, in other embodiments, a partial gap may be left between the signal cable installation cylinder 6 and the power cable installation cylinder 7 on the socket rear shell 5. The aforementioned fixed buckles 13 or fixed claw catches are disposed on the avoidance recess 11; the mating claw catches 15 on the signal cable installation cylinder 6 adapted to the fixed buckles 13, or the mating buckles adapted to the fixed claw catches, are disposed at positions opposite to the power cable installation cylinder 7 on the signal cable installation cylinder 6.

[0045] The fixed buckles 13 or fixed claw catches are arranged in pairs, and the two fixed buckles 13 or fixed claw catches in the same pair are symmetrically arranged left and right. This can effectively ensure the fixed installation effect between the signal cable end cover 9 and the signal cable installation cylinder 6. Of course, only one fixed buckle 13 or fixed claw catch may be provided. On this basis, the fixed buckle 13 or fixed claw catch may be arranged at a position facing the power cable installation cylinder 7, or may be offset relative to the aforementioned position. Of course, three, four or even more fixed buckles 13 or fixed claw catches may also be provided, and the number thereof is determined according to actual needs and will not be elaborated here.

[0046] The installation structure includes a retaining arm 18 disposed at a position between two arc-shaped recesses on the cover body 17. After the cover body 17 is installed at the mouth of the signal cable installation cylinder 6, the retaining arm 18 is axially attached and retained on the outer peripheral surface of the signal cable installation cylinder 6 to prevent the signal cable end cover 9 from radially wobbling and tilting axially relative to the signal cable installation cylinder 6. Such an arrangement can strengthen the fixed installation effect of the signal cable end cover 9 on the signal cable installation cylinder 6 and is conducive to reliably retaining the signal cable end cover 9 on the signal cable installation cylinder 6.

[0047] On the basis of the above structure, a guide wing plate 12 extending along the axial direction of the signal cable installation tube 6 can be provided on the retaining arm 18. Correspondingly, a guide card slot 14 is provided between the power cable installation tubes 7, and the extension direction of the guide card slot 14 is also provided along the axial direction of the signal cable installation tube 6. When installing the signal cable tail cover 9, the guide wing plate 12 is carded and guided with the guide card slot 14, so that the signal cable tail cover 9 can be guided and slid along the extension direction of the guide card slot 14. After the signal cable tail cover 9 slides into place, the fixed buckle 13 is carded with the matching buckle claw 15, or the fixed buckle claw is carded with the matching buckle, so that the signal cable tail cover 9 can be fixedly retained at the tube mouth of the signal cable installation tube 6. Such a setting enables the signal cable tail cover 9 to be directionally buckled on the signal cable installation tube 6, reduces the influence of the limited installation space on the installation of the signal cable tail cover 9, and greatly facilitates the installation of the signal cable tail cover 9.

[0048] The aforementioned cover body 17 is preferably a circular cover body, and the arc-shaped recesses are arranged on both sides of the signal cable tail cover 9 facing the power signal cable, and the circular edge of the circular cover body is divided into a longer arc edge and a shorter arc edge, so that the front profile of the cover body 17 is finally close to a fan shape. The guide wing plate 12 is arranged at the shorter arc length portion between the two arc-shaped recesses on the edge of the cover body 17. Such an arrangement enables the guide wing plate 12 and the matching guide card slot 14 to be located in the narrow space between the two power cable mounting barrels 7, effectively utilizing the space on the socket rear shell assembly 2, and thus helping to reduce the occupied space of the Japanese standard charging socket. Of course, the guide wing plate 12 can also be arranged at the longer arc length portion between the two arc-shaped recesses on the edge of the cover body 17, and the guide card slot 14 is arranged at the corresponding position on the side of the signal cable mounting barrel 6.

[0049] A retaining barrel section 16 is provided at the edge of the hole on the side of the cable through-hole 10 facing away from the signal cable mounting barrel 6. The provision of the retaining barrel section 16 can extend the axial length of the signal cable tail cover 9 for the signal cable to pass through, thereby enabling the signal cable tail cover 9 to have a better retaining effect on the signal cable. Such a provision can make it difficult for the swinging of the tail end of the signal cable to affect the portion of the signal cable located in the signal cable mounting barrel 6 when the socket rear shell assembly 2 is located in a vibration environment, thereby enabling the signal cable to maintain a good electrical connection relationship with the signal terminal of the socket rear shell assembly 2. The cable through-hole 10 is preferably a single-line through-hole, that is, one cable through-hole 10 is only for one signal cable to pass through. This not only facilitates the installation of the signal cable, but also helps to distinguish the signal cables that need to be repaired or replaced when repairing or replacing the signal cables. Of course, in other embodiments, the cable through-hole 10 can also be a multi-line through-hole, that is, multiple signal cables are installed in the same cable through-hole 10.

[0050] Embodiment of the signal cable end cap of the present utility model:

[0051] The embodiment of the signal cable end cap of the present utility model is the same as the signal cable end cap 9 in the solution principle and embodiment of the socket rear shell assembly described in the present utility model, and will not be elaborated here.

[0052] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. The patent protection scope of the present utility model is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present utility model should be equally included in the protection scope of the present utility model.

Claims

1. A signal cable tail cover, characterized in that: The invention comprises a cover body (17) for being separately installed at the tube mouth of one of the signal cable installation tubes (6) of the socket rear shell (5); the cover body (17) is provided with a cable through hole (10) for inserting the signal cable, the edge of the cover body (17) is provided with two avoidance recesses (11) which are arranged symmetrically on the left and right and are used to avoid the power cable installation tube (7) on the socket rear shell (5), and a mounting structure which extends axially along the signal cable installation tube (6) and is used to fix the signal cable installation tube (6) on the socket rear shell (5).

2. The signal cable tail cover according to claim 1, characterized in that: The avoidance recess (11) is an arc-shaped recess adapted to the power cable installation cylinder (7).

3. The signal cable tail cover according to claim 1, characterized in that: The mounting structure comprises a fixing buckle (13) or a fixing buckle claw arranged on the cover body (17) at a position circumferentially lateral to the avoidance recess (11).

4. The signal cable tail cover according to claim 3, characterized in that: The fixing buckles (13) or fixing buckle claws are arranged in pairs, and the two fixing buckles (13) or fixing buckle claws in the same pair are arranged symmetrically on the left and right.

5. The signal cable tail cover according to any one of claims 1 to 4, characterized in that: The mounting structure comprises a retaining arm (18) arranged between two avoidance recesses (11) on the cover body (17), the retaining arm (18) being used to fit and retain on the outer peripheral surface of the signal cable mounting tube (6) along the axial direction of the signal cable mounting tube (6) after the cover body (17) is mounted to the tube mouth of the signal cable mounting tube (6).

6. The signal cable tail cover according to claim 5, characterized in that: The retaining arm (18) is provided with a guide wing plate (12) extending along the axial direction of the signal cable installation cylinder (6), and the guide wing plate (12) is used for guiding and cooperating with a guide card slot (14) provided on the socket rear shell (5).

7. The signal cable tail cover according to claim 6, characterized in that: The cover body (17) is a circular cover body, and the guide wing plate (12) is arranged at a portion of the cover body (17) with a shorter arc length between two avoidance recesses (11).

8. The signal cable tail cover according to any one of claims 1 to 4, characterized in that: A retaining barrel section (16) is provided at the edge of the hole on the side of the cable through hole (10) facing away from the signal cable installation barrel (6).

9. The signal cable tail cover according to any one of claims 1 to 4, characterized in that: The cable penetration hole (10) is a single-line penetration hole.

10. A socket rear shell assembly, comprising a socket rear shell (5), characterized in that: A pair of signal cable installation barrels (6) and a pair of power cable installation barrels (7) are provided on the socket rear shell (5), and the pair of signal cable installation barrels (6) and the pair of power cable installation barrels (7) are arranged in a cross shape; an independent signal cable tail cover (9) is installed at the barrel mouth of the signal cable installation barrel (6); the signal cable tail cover (9) is the signal cable tail cover according to any one of claims 1 to 9.

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