An elbow plug connector and method of assembling the same

Abstract

The application discloses a bend plug connector and an assembling method thereof. The bend plug connector comprises a shell, a glue core assembly and a counter terminal. The shell has a first receiving cavity and a second receiving cavity, the first receiving cavity and the second receiving cavity are mutually angled, and the intersection of the first receiving cavity and the second receiving cavity forms a mounting area. The glue core assembly comprises a cable and a terminal in the first receiving cavity. The terminal comprises a terminal part and a first fixing part. The terminal part is connected with the cable, and the first fixing part extends into the mounting area. The counter terminal is arranged in the second receiving cavity and comprises a contact part and a second fixing part. The contact part is used for being connected with a socket terminal. The second fixing part extends into the mounting area and overlaps with the first fixing part. The fixing assembly is arranged in the mounting area and comprises a limiting piece and a locking piece. The second fixing part and the first fixing part are clamped between the limiting piece and the locking piece, so as to fix the terminal and the counter terminal. The fixing structure is simple in manufacturing process, so that the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connector, in particular to an elbow plug connector and an assembling method thereof. BACKGROUND

[0002] Electronic connectors play a vital role in the electrical connection between wires, they can ensure the stable transmission of electrical signals. In order to meet the installation needs, elbow connectors are also common in the market. Elbow connectors are usually used to solve the problem of angle change between wires, making the connection more flexible and convenient. Although they are useful in many applications, the production of elbow connectors is not simple, and therefore their price is relatively high.

[0003] There are some more complex problems in the elbow connectors currently used by most electric vehicles (EV) on the market. First of all, due to the elbow design of the plug part of the elbow connector, the terminal structure is more complex, which requires the use of complex molding process and assembly process to manufacture, increasing the manufacturing difficulty and increasing the manufacturing cost.

[0004] In addition, the structure and manufacturing process of the elbow connector are relatively complex, which increases the difficulty of assembly, increases the production cycle and the scrap rate, and leads to the rise of the overall manufacturing cost. SUMMARY

[0005] In order to overcome the problems of complex structure and manufacturing process and high manufacturing cost of the plug in the existing elbow connector, the present application provides an elbow plug connector and an assembling method thereof.

[0006] The technical scheme of the present application is as follows:

[0007] In a first aspect, the present application provides an elbow plug connector, comprising:

[0008] A housing having a first receiving cavity and a second receiving cavity, the first receiving cavity and the second receiving cavity are at an angle to each other, and the intersection of the first receiving cavity and the second receiving cavity forms a mounting area;

[0009] A glue core assembly including a cable and a wiring terminal arranged in the first receiving cavity, the wiring terminal including a wiring part and a first fixing part, the wiring part being connected with the cable, and the first fixing part extending into the mounting area;

[0010] A mating terminal arranged in the second receiving cavity, including a contact part for mating with a socket terminal and a second fixing part, the second fixing part extending into the mounting area and overlapping with the first fixing part;

[0011] A fixing assembly is arranged in the mounting area and includes a limiting member and a locking member. The second fixing part and the first fixing part are clamped between the limiting member and the locking member.

[0012] Further, the housing is provided with a mounting hole in a direction perpendicular to the first receiving cavity and the second receiving cavity. The mounting hole extends to the mounting area. A sealing cover is arranged on the mounting hole. The first fixing part and the second fixing part overlap in the direction of the mounting hole. The first fixing part is provided with a first through hole in the direction of the mounting hole. The second fixing part is provided with a second through hole in the direction of the mounting hole. The first through hole and the second through hole completely overlap in the direction of the mounting hole. One end of the locking member passes through the first through hole and the second through hole and is connected with the limiting member.

[0013] Further, the locking member includes a base and a connecting rod protruding inward from the base. The connecting rod passes through the first through hole and the second through hole and is connected with the limiting member. The second fixing part and the first fixing part are clamped between the base and the limiting member.

[0014] Further, the sealing cover includes a cover plate, a first connecting part in the form of a ring protruding inward from the cover plate, and a plurality of elastic arms protruding inward from the first connecting part. The ends of the elastic arms are provided with buckles. The first connecting part is recessed to form a first sealing ring groove.

[0015] The mounting hole includes a first receiving hole and a second receiving hole. The second receiving hole is connected with the first receiving hole and the mounting area. An installation step is arranged between the first receiving hole and the second receiving hole. The cover plate is received in the first receiving hole and abuts against the installation step. A first sealing ring is arranged between the first sealing ring groove and the second receiving hole. The end face of the second receiving hole forms a first blocking part. The buckle passes through the second receiving hole and is clamped on the first blocking part.

[0016] Further, the second receiving hole includes a first hole section close to the first receiving hole and a second hole section close to the mounting area. The hole diameter of the second hole section gradually decreases from the direction of the first hole section towards the mounting area. The end face of the second hole section forms the first blocking part. The first sealing ring is arranged between the first sealing ring groove and the first hole section.

[0017] Further, the limiting member is a hexagonal nut, and the locking member is a bolt. The bolt passes through the first through hole and the second through hole and is screwed with the nut.

[0018] Further, the second accommodating cavity is provided with a first limiting protruding rib, the docking terminal is clamped between a pair of oppositely arranged first limiting protruding ribs to limit the docking terminal, one end of the first limiting protruding rib extends to the mounting area, and the second fixing part and the first fixing part are clamped between the limiting member and the first limiting protruding rib.

[0019] Further, the first accommodating cavity is provided with a second limiting protruding rib, the wiring terminal is clamped between a pair of oppositely arranged second limiting protruding ribs, and the second limiting protruding rib extends to the mounting area and abuts against the second fixing part.

[0020] Further, the mounting area is provided with a limiting groove for mounting the limiting member, and the limiting groove is matched in shape with the limiting member.

[0021] Further, the docking terminal is a large-current clip terminal, which comprises a first clamping piece, a second clamping piece oppositely arranged with the first clamping piece, and a second connecting part arranged between the first clamping piece and the second clamping piece, and the first fixing part is arranged between the first clamping piece and the second clamping piece; the first clamping piece comprises a first main body part, one end of the first main body part extends with a first clamping terminal, and the second fixing part is arranged at the other end of the first main body part; the second clamping piece comprises a second main body part, the second main body part is arranged in parallel with the first main body part along the plate surface direction, the second main body part is connected with the first main body part through the second connecting part, one end of the second main body part extends with a second clamping terminal, and the first clamping terminal and the second clamping terminal form the contact part.

[0022] Further, the limiting groove is communicated with the second accommodating cavity, the second main body part is formed with a second resisting part, the second resisting part is oppositely arranged with the limiting groove and abuts against the limiting member, the second resisting part is matched in shape with the limiting member, and the second resisting part and the limiting groove jointly limit the limiting member in the mounting area.

[0023] Further, the shell has a first plug-in cavity for accommodating a second plug-in part of the socket, the front cover is arranged on the port of the first plug-in part and covers the port of the second accommodating cavity, the first plug-in part is annularly provided with a second sealing groove, one end of the second sealing ring is plugged into the second sealing groove, and the other end of the second sealing ring abuts against the side wall of the front cover.

[0024] Further, opposite sides of the front cover are provided with first buckling arms, the first plug-in part is correspondingly provided with buckling grooves matched with the first buckling arms, the front cover is provided with a signal terminal hole corresponding to the signal terminal receiving cavity, and two oppositely arranged cantilever arms extend from the signal terminal hole along the direction of the signal terminal receiving cavity, and the two cantilever arms are both abutted to the signal terminal seat.

[0025] Further, one end of the cantilever arm connected to the front cover is provided with a reinforcing rib.

[0026] Further, the widths of the two cantilever arms are different.

[0027] Further, the rear cover is further provided, the shell has a third plug-in part, the third plug-in part is at an angle with the first plug-in part, the first receiving cavity is formed in the third plug-in part, the rear cover covers the first receiving cavity, and a side wall of the rear cover is sleeved outside the third plug-in part.

[0028] Further, the side wall of the rear cover is provided with a foolproof notch, and the third plug-in part is provided with a foolproof boss matched with the foolproof notch.

[0029] Further, a third sealing ring is further provided, the third sealing ring is arranged in the first receiving cavity, and the third sealing ring is provided with a wire passing hole through which the cable passes.

[0030] In a second aspect, the application provides an assembling method of the elbow plug connector according to any of the above-mentioned schemes, comprising the following steps:

[0031] The limiting piece is installed into the limiting groove from the second receiving cavity;

[0032] The rubber core assembly pre-installed with the third sealing ring and the mating terminal are assembled into the installation area from the first receiving cavity and the second receiving cavity respectively, so that the first fixed part of the wiring terminal and the second fixed part of the mating terminal are overlapped together and clamped between the first limiting rib and the limiting piece;

[0033] The locking piece is installed into the installation area from the installation hole, and the locking piece is screwed with the limiting piece after passing through the first through hole of the first fixed part and the second through hole of the second fixed part;

[0034] The sealing cover provided with the first sealing ring is covered on the installation hole, and the sealing between the installation area and the installation hole is completed;

[0035] The third sealing ring is installed into the first receiving cavity, and the rear cover is covered on the port of the first receiving cavity;

[0036] The second sealing ring is installed in the second sealing groove, and the front cover is covered on the second receiving cavity and abutted to the second sealing ring.

[0037] Compared with the prior art, the application has the beneficial effects that:

[0038] 1. By setting the installation area, the first fixed part of the wiring terminal and the second fixed part of the mating terminal can extend into the installation area along two directions of the elbow and overlap each other, realizing the electrical connection between the wiring terminal and the mating terminal in the elbow plug connector, and the connection structure and manufacturing process are simple;

[0039] 2. The first fixed part and the second fixed part can be fixed together by the limiting piece and the locking piece, and then the wiring terminal and the mating terminal are fixed, the fixing structure and the manufacturing process are simple, and the manufacturing cost is reduced;

[0040] 3. The sealing structure piece can realize the sealing of the elbow plug connector in use by respectively installing sealing covers, third sealing rings and second sealing rings in the installation hole, the first receiving cavity and the first plug-in part, without complex glue pouring process sealing, the process is simple, the manufacturing material cost is low, and the production cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0042] Figure 1 is a structural schematic view of the application;

[0043] Figure 2 is an exploded view of the application;

[0044] Figure 3 is Figure 1 a sectional view of A-A in the figure;

[0045] Figure 4 is Figure 1 a sectional view of B-B in the figure;

[0046] Figure 5 is Figure 1 a sectional view of C-C in the figure;

[0047] Figure 6 is Figure 1 a sectional view of D-D in the figure;

[0048] Figure 7 is a structural schematic view of the shell in the application;

[0049] Figure 8 is a structural schematic view of the shell in the application;

[0050] Figure 9 is Figure 7 a sectional view of E-E in the middle;

[0051] Figure 10 is Figure 7 a sectional view of F-F in the middle;

[0052] Figure 11 is a schematic view of the structure of the sealing cover in the application;

[0053] Figure 12 is a schematic view of the structure of the terminal in the application;

[0054] Figure 13 is a schematic view of the structure of the front cover in the application;

[0055] Figure 14 is a schematic view of the structure of the rear cover in the application.

[0056] in the drawings,

[0057] 1, housing; 11, first receiving cavity; 111, second limiting rib; 12, second receiving cavity; 121, first limiting rib; 13, mounting area; 131, limiting groove; 14, mounting hole; 141, first receiving hole; 142, second receiving hole; 1421, first hole section; 1422, second hole section; 143, mounting step; 144, first blocking part; 15, first insertion cavity; 16, first insertion part; 161, second sealing groove; 162, buckling groove; 17, signal terminal receiving cavity; 18, signal terminal seat; 19, third insertion part; 191, foolproof boss;

[0058] 2, glue core assembly; 21, cable; 22, wiring terminal; 221, wiring part; 222, first fixing part; 2221, first through hole;

[0059] 3, terminal; 31, first clamping piece; 311, first main body part; 312, first clamping terminal; 313, second fixing part; 3131, second through hole; 32, second clamping piece; 321, second main body part; 3211, second blocking part; 322, second clamping terminal; 33, second connecting part;

[0060] 4, limiting piece;

[0061] 5, locking piece; 51, base; 52, connecting rod;

[0062] 6, sealing cover; 61, cover plate; 62, first connecting part; 621, first sealing ring groove; 622, first sealing ring; 63, elastic arm; 64, buckle;

[0063] 7, front cover; 71, first snap arm; 72, signal terminal hole; 73, cantilever; 74, reinforcing rib;

[0064] 8, second sealing ring;

[0065] 9, rear cover; 91, foolproof notch;

[0066] 10, third sealing ring; 101, wire passing hole. DETAILED DESCRIPTION

[0067] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, it is declared that the following described embodiments are only for explaining the present application, and are not used to limit the present application.

[0068] It should be noted that the terms "mounting", "setting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly placed when the product of the application is used, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0069] Please refer to Figures 1 to 10The embodiment provides a elbow plug connector, which comprises a shell 1, a rubber core assembly 2, a mating terminal 3 and a fixing assembly. The shell 1 has a first receiving cavity 11 and a second receiving cavity 12, the first receiving cavity 11 and the second receiving cavity 12 are at an angle with each other, and the intersection of the first receiving cavity 11 and the second receiving cavity 12 forms a mounting area 13. The rubber core assembly 2 comprises a cable 21 and a wiring terminal 22 arranged in the first receiving cavity 11, the wiring terminal 22 comprises a wiring part 221 and a first fixing part 222, the wiring part 221 is connected with the cable 21, and the first fixing part 222 extends into the mounting area 13. The mating terminal 3 is arranged in the second receiving cavity 12, and the mating terminal 3 comprises a contact part for mating with a socket terminal and a second fixing part 313, the second fixing part 313 extends into the mounting area 13 and overlaps with the first fixing part 222. The fixing assembly is arranged in the mounting area 13, and the fixing assembly comprises a limiting piece 4 and a locking piece 5, the second fixing part 313 and the first fixing part 222 are clamped between the limiting piece 4 and the locking piece 5. According to the embodiment, the first fixing part 222 of the wiring terminal 22 and the second fixing part 313 of the mating terminal 3 can extend into the mounting area 13 along two directions of the elbow and overlap with each other, so that the wiring terminal 22 and the mating terminal 3 in the elbow plug connector are electrically connected; the first fixing part 222 and the second fixing part 313 can be fixed together by the limiting piece 4 and the locking piece 5, and then the wiring terminal 22 and the mating terminal 3 are fixed.

[0070] Please refer to Figures 2 to 10 In one embodiment, the shell 1 is provided with a mounting hole 14 in a direction perpendicular to the first receiving cavity 11 and the second receiving cavity 12, and the mounting hole 14 extends to the mounting area 13. The first fixing part 222 and the second fixing part 313 overlap in the direction of the mounting hole 14, the first fixing part 222 is provided with a first through hole 2221 in the direction of the mounting hole 14, the second fixing part 313 is provided with a second through hole 3131 in the direction of the mounting hole 14, and the first through hole 2221 and the second through hole 3131 completely overlap in the direction of the mounting hole 14. The locking piece 5 comprises a base 51 and a connecting rod 52 protruding inward from the base 51, the connecting rod 52 is connected with the limiting piece 4 after passing through the first through hole 2221 and the second through hole 3131, the second fixing part 313 and the first fixing part 222 are clamped between the base 51 and the limiting piece 4, so that the first fixing part 222 and the second fixing part 313 are firmly fixed together, and the fixing structure is simple and convenient to operate. In addition, a sealing cover 6 is arranged on the mounting hole 14, so that the mounting hole 14 can be sealed after the locking piece 5 locks the second fixing part 313 and the first fixing part 222, the sealing of the elbow plug connector during use is realized, and a good sealing effect can be achieved without complex glue filling process.

[0071] Please refer to Figure 2 、 Figure 5 、 Figures 9 to 11Specifically, the sealing cover 6 comprises a cover plate 61, a first connecting part 62 in the shape of a ring protruding inwardly from the cover plate 61, and a plurality of elastic arms 63 protruding inwardly from the first connecting part 62, the ends of the elastic arms 63 are provided with buckles 64, and the first connecting part 62 is recessed to form a first sealing ring groove 621. The mounting hole 14 comprises a first receiving hole 141 and a second receiving hole 142, the second receiving hole 142 communicates with the first receiving hole 141 and the mounting area 13, a mounting step 143 is arranged between the first receiving hole 141 and the second receiving hole 142, and the cover plate 61 is received in the first receiving hole 141 and abuts against the mounting step 143. The second receiving hole 142 comprises a first hole section 1421 close to the first receiving hole 141 and a second hole section 1422 close to the mounting area 13, the hole diameter of the second hole section 1422 gradually decreases from the first receiving hole 141 towards the mounting area 13, the end surface of the second hole section 1422 forms a first blocking part 144, the buckle 64 is clamped to the first blocking part 144 after passing through the second receiving hole 142, and a first sealing ring 622 is arranged between the first sealing ring groove 621 and the first hole section 1421 to form a seal between the mounting hole 14 and the mounting area 13. The sealing cover 6 and the mounting hole 14 are arranged as described above, the hole diameter of the second hole section 1422 gradually decreases from the outside to the inside, so that the cooperation area of the first blocking part 144 and the buckle 64 is larger, the two are more firmly clamped, the elastic arm 63 can more easily enter the mounting area 13 from the second receiving hole 142 and be clamped with the first blocking part 144, and the buckle 64 is pressed by the sidewall of the second receiving hole 142 and is retracted along with the elastic arm 63 when the sealing cover 6 is assembled into the second receiving hole 142, so as to smoothly pass through the second receiving hole 142.

[0072] In one embodiment, the limiting part 4 is a hexagonal nut, and the locking part 5 is a bolt, the bolt is screwed with the nut through the first through hole 2221 and the second through hole 3131, and the bolt can be easily screwed into the nut by cooperating with a screwdriver, so that the first fixed part 222 and the second fixed part 313 are firmly fixed together.

[0073] Please refer to Figure 4 , Figures 7 to 10In one embodiment, the second accommodating cavity 12 is provided with a first limiting protruding rib 121, the mating terminal 3 is clamped between a pair of oppositely arranged first limiting protruding ribs 121 to limit the mating terminal 3, one end of the first limiting protruding rib 121 extends to the mounting area 13, the second fixing portion 313 and the first fixing portion 222 are clamped between the limiting member 4 and the first limiting protruding rib 121, so that after the terminal 22 and the mating terminal 3 are assembled into the shell 1, the first fixing portion 222 and the second fixing portion 313 can be kept overlapping. The first accommodating cavity 11 is provided with a second limiting protruding rib 111, the terminal 22 is clamped between a pair of oppositely arranged second limiting protruding ribs 111, and the second limiting protruding rib 111 extends to the mounting area 13 to abut against the second fixing portion 313, so that after the mating terminal 3 is assembled into the shell 1, the second fixing portion 313 thereof is limited in the mounting area 13.

[0074] Please refer to Figure 3 、 Figure 4 、 Figure 12 In one embodiment, the mating terminal 3 is a large-current clip terminal, which includes a first clamping piece 31, a second clamping piece 32 oppositely arranged with the first clamping piece 31, and a second connecting portion 33 arranged between the first clamping piece 31 and the second clamping piece 32. The first clamping piece 31 includes a first main body portion 311, one end of the first main body portion 311 extends with a first clamping terminal 312, and a second fixing portion 313 is arranged at the other end of the first main body portion 311. The second clamping piece 32 includes a second main body portion 321, which is arranged in parallel with the first main body portion 311 along the plate surface direction, and is connected with the first main body portion 311 through the second connecting portion 33. One end of the second main body portion 321 extends with a second clamping terminal 322, the first clamping terminal 312 and the second clamping terminal 322 form a contact portion, and the first clamping terminal 312 and the second clamping terminal 322 are used to clamp the terminal portion of the socket terminal together. The first fixing portion 222 of the terminal 22 is arranged between the first clamping piece 31 and the second clamping piece 32, and the space between the first clamping piece 31 and the second clamping piece 32 is fully utilized to place the first fixing portion 222, so as to reduce the design space of the elbow plug connector along the mounting hole 14 direction.

[0075] Please refer to Figure 4 、 Figures 8 to 10Further, the mounting area 13 is provided with a limiting groove 131 for mounting the limiting member 4, the limiting groove 131 is matched with the limiting member 4 in shape, so as to avoid the rotation of the limiting member 4 when the locking member 5 is connected with the limiting member 4. The limiting groove 131 is communicated with the second receiving cavity 12, the second main body part 321 is formed with a second resisting part 3211, the second resisting part 3211 is oppositely arranged with the limiting groove 131 and abuts against the limiting member 4, the second resisting part 3211 is matched with the limiting member 4 in shape, and the second resisting part 3211 cooperates with the limiting groove 131 to limit the limiting member 4 in the mounting area 13.

[0076] Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 13 In one embodiment, the elbow socket connector further comprises a front cover 7 and a second sealing ring 8, the shell 1 is provided with a first plug-in cavity 15 for receiving a second plug-in part of the socket, the second plug-in part of the socket is formed with a second plug-in cavity, the first plug-in cavity 15 is provided with a first plug-in part 16 which is plugged with the second plug-in cavity of the socket, the first plug-in part 16 is provided with a signal terminal receiving cavity 17, the signal terminal receiving cavity 17 is provided with a signal terminal seat 18 for receiving a signal terminal, the signal terminal receiving cavity 17 is arranged adjacent to the second receiving cavity 12, and the front cover 7 is arranged on the port of the first plug-in part 16 and covers the port of the second receiving cavity 12 and the port of the signal terminal receiving cavity 17. The first plug-in part 16 is provided with a second sealing groove 161, one end of the second sealing ring 8 is plugged into the second sealing groove 161, and the other end of the second sealing ring 8 abuts against the side wall of the front cover 7, so as to fix the second sealing ring 8. When the first plug-in part 16 is plugged into the second plug-in cavity of the socket, the second sealing ring 8 is clamped between the second plug-in cavity and the first plug-in part 16, so as to realize the sealed connection therebetween.

[0077] Specifically, the opposite sides of the front cover 7 are provided with first buckling arms 71, the first plug-in part 16 is correspondingly provided with buckling grooves 162 which are matched with the first buckling arms 71, the front cover 7 is provided with a signal terminal hole 72 corresponding to the signal terminal receiving cavity 17, and two oppositely arranged cantilever arms 73 are extended from the signal terminal hole 72 along the direction of the signal terminal receiving cavity 17, the two cantilever arms 73 abut against the signal terminal seat 18, so as to limit the signal terminal seat 18 in the signal terminal receiving cavity 17. One end of the cantilever arm 73 connected to the front cover 7 is provided with a reinforcing rib 74, so as to enhance the strength of the cantilever arm 73 and avoid its easy deformation. In addition, the widths of the two cantilever arms 73 are different, so that the assembly personnel can identify the correct assembly direction of the front cover 7 according to the different widths of the two cantilever arms 73, so as to prevent the assembly in reverse.

[0078] Please refer to Figures 1 to 3 , Figure 6 , Figure 14In one embodiment, the elbow socket connector further comprises a back cover 9 and a third sealing ring 10, the shell 1 has a third insertion part 19 which is at an angle with the first insertion part 16, a first receiving cavity 11 is formed in the third insertion part 19, the back cover 9 covers the first receiving cavity 11 and the side wall of the back cover 9 is sleeved outside the third insertion part 19. The side wall of the back cover 9 is provided with an anti-stupid notch 91, and the third insertion part 19 is provided with an anti-stupid boss 191 matched with the anti-stupid notch 91, so as to prevent the back cover 9 from being installed reversely. The third sealing ring 10 is arranged in the first receiving cavity 11, and the third sealing ring 10 is provided with a wire passing hole 101 for the cable 21 to pass through, so that the cable 21 can be smoothly assembled into the shell 1, and the first receiving cavity 11 can also be sealed.

[0079] The assembly method of the elbow plug connector comprises the following steps:

[0080] 1) Install the limiting piece 4 from the second receiving cavity 12 into the limiting groove 131;

[0081] 2) Assemble the rubber core assembly 2 pre-installed with the third sealing ring 10 and the mating terminal 3 from the first receiving cavity 11 and the second receiving cavity 12 into the installation area 13 respectively, so that the first fixing part 222 of the wiring terminal 22 and the second fixing part 313 of the mating terminal 3 overlap together and are clamped between the first limiting rib 121 and the limiting piece 4;

[0082] 3) Install the locking piece 5 from the installation hole 14 into the installation area 13, then pass the locking piece 5 through the first through hole 2221 of the first fixing part 222 and the second through hole 3131 of the second fixing part 313, and then rotate with the limiting piece 4 to fix the first fixing part 222 and the second fixing part 313 together;

[0083] 4) Cover the sealing cover 6 provided with the first sealing ring 622 on the installation hole 14 to seal between the installation area 13 and the installation hole 14;

[0084] 5) Install the third sealing ring 10 to the first receiving cavity, then cover the back cover 9 to the port of the first receiving cavity, and complete the sealing of the first receiving cavity;

[0085] 6) Install the second sealing ring 8 to the second sealing groove 161, cover the front cover 7 to the second receiving cavity 12 and abut against the second sealing ring 8, thereby completing the assembly of the elbow plug connector.

[0086] In summary, the elbow plug connector provided by the application has the following advantages: the first fixed part 222 of the wiring terminal 22 and the second fixed part 313 of the mating terminal 3 can extend into the mounting area 13 along two directions of the elbow and overlap with each other, so that the wiring terminal 22 and the mating terminal 3 in the elbow plug connector are electrically connected, and the connection structure and manufacturing process are simple; the first fixed part 222 and the second fixed part 313 can be fixed together by the limiting part 4 and the locking part 5, and then the wiring terminal 22 and the mating terminal 3 are fixed, so that the fixing structure and manufacturing process are simple, and the manufacturing cost is reduced; the sealing structure is provided with the sealing cover 6, the third sealing ring 10 and the second sealing ring 8 in the mounting hole 14, the first receiving cavity 11 and the first plug-in part 16, so that the sealing of the elbow plug connector during use can be realized, and the complex glue filling process is not needed, so that the process is simple, the manufacturing material cost is low, and the production cost is further reduced.

[0087] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall fall within the protection scope of the appended claims of the application.

[0088] The above is an exemplary description of the application in combination with the drawings, and it is obvious that the implementation of the application is not limited to the above manner. Any improvement or change of the method concept and technical solution of the application, or direct application of the concept and technical solution of the application to other occasions without improvement, shall fall within the protection scope of the application.

Claims

1. An elbow plug connector characterized by, The utility model relates to a connector, comprising: a housing having a first receiving cavity and a second receiving cavity, the first receiving cavity and the second receiving cavity being at an angle to each other, an intersection of the first receiving cavity and the second receiving cavity forming a mounting area; a cable core assembly including a cable and a terminal disposed in the first receiving cavity, the terminal including a terminal portion connected to the cable and a first fixing portion extending into the mounting area; a mating terminal disposed in the second receiving cavity, including a contact portion for mating with a socket terminal and a second fixing portion, the second fixing portion extending into the mounting area and overlapping the first fixing portion; a fixing assembly disposed in the mounting area, including a limiting member and a locking member, the second fixing portion and the first fixing portion being clamped between the limiting member and the locking member; wherein a first limiting rib is disposed in the second receiving cavity, the mating terminal being clamped between a pair of oppositely disposed first limiting ribs, one end of the first limiting rib extending to the mounting area, the second fixing portion and the first fixing portion being clamped between the limiting member and the first limiting rib; a second limiting rib is disposed in the first receiving cavity, the terminal being clamped between a pair of oppositely disposed second limiting ribs, the second limiting rib extending to the mounting area and abutting against the second fixing portion; a limiting groove for mounting the limiting member is disposed in the mounting area, the limiting groove being matched in shape to the limiting member; the mating terminal is a large-current clamp terminal, including a first clamping piece, a second clamping piece oppositely disposed to the first clamping piece, and a second connecting portion disposed between the first clamping piece and the second clamping piece, the first fixing portion being disposed between the first clamping piece and the second clamping piece; the first clamping piece includes a first main body portion, one end of the first main body portion extending a first clamping terminal, the second fixing portion being disposed at the other end of the first main body portion; the second clamping piece includes a second main body portion, the second main body portion being disposed parallel to the first main body portion along a plate surface direction, the second main body portion being connected to the first main body portion through the second connecting portion, one end of the second main body portion extending a second clamping terminal, the first clamping terminal and the second clamping terminal forming the contact portion; the limiting groove is in communication with the second receiving cavity, the second main body portion forming a second blocking portion, the second blocking portion being oppositely disposed to the limiting groove and abutting against the limiting member, the second blocking portion being matched in shape to the limiting member, the second blocking portion and the limiting groove jointly limiting the limiting member in the mounting area.

2. The elbow plug connector of claim 1, wherein, The shell is provided with a mounting hole in a direction perpendicular to the first receiving cavity and the second receiving cavity, the mounting hole extends to the mounting area, a sealing cover is arranged on the mounting hole, the first fixing part and the second fixing part overlap in the direction of the mounting hole, the first fixing part is provided with a first through hole in the direction of the mounting hole, the second fixing part is provided with a second through hole in the direction of the mounting hole, the first through hole and the second through hole completely overlap in the direction of the mounting hole, one end of the locking piece is connected with the limiting piece after penetrating through the first through hole and the second through hole.

3. The elbow plug connector of claim 2, wherein, The locking piece comprises a base and a connecting rod protruding inward from the base, the connecting rod is connected with the limiting piece after penetrating through the first through hole and the second through hole, and the second fixing part and the first fixing part are clamped between the base and the limiting piece.

4. The elbow plug connector of claim 2, wherein, The sealing cover comprises a cover plate, a first connecting part in the form of a ring protruding inward from the cover plate, and a plurality of elastic arms protruding inward from the first connecting part, the ends of the elastic arms are provided with buckles, and the first connecting part is recessed to form a first sealing ring groove. The mounting hole comprises a first receiving hole and a second receiving hole, the second receiving hole communicates the first receiving hole and the mounting area, a mounting step is arranged between the first receiving hole and the second receiving hole, the cover plate is received in the first receiving hole and abuts against the mounting step, a first sealing ring is arranged between the first sealing ring groove and the second receiving hole, the end face of the second receiving hole forms a first blocking part, and the buckle is clamped on the first blocking part after penetrating through the second receiving hole.

5. The elbow plug connector of claim 4, wherein, The second receiving hole comprises a first hole section close to the first receiving hole and a second hole section close to the mounting area, the hole diameter of the second hole section gradually decreases from the direction of the first hole section to the direction of the mounting area, the end face of the second hole section forms the first blocking part, and the first sealing ring is arranged between the first sealing ring groove and the first hole section.

6. The elbow plug connector of claim 2, wherein, The limiting piece is a hexagonal nut, the locking piece is a bolt, and the bolt is screwed with the nut after penetrating through the first through hole and the second through hole.

7. The elbow plug connector of claim 1, wherein, Further comprising a front cover and a second sealing ring, the shell has a first plug-in cavity for receiving a second plug-in part of a socket, the first plug-in cavity is provided with a first plug-in part for plugging with a second plug-in cavity of the socket, the front cover is arranged on the port of the first plug-in part and covers the port of the second receiving cavity, the first plug-in part is annularly provided with a second sealing groove, one end of the second sealing ring is plugged into the second sealing groove, and the other end of the second sealing ring abuts against the side wall of the front cover.

8. The elbow plug connector of claim 7, wherein, Further comprising a rear cover, the shell has a third plug-in part, the third plug-in part is at an angle with the first plug-in part, the first receiving cavity is formed in the third plug-in part, and the rear cover covers the first receiving cavity and the side wall of the rear cover is sleeved outside the third plug-in part.

9. The elbow plug connector of claim 1, wherein, Further comprising a third sealing ring, the third sealing ring is arranged in the first receiving cavity, and the third sealing ring is provided with a wire passing hole for the cable to pass through.

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