Prefabricated connector

Abstract

The invention relates to the technical field of connectors, and discloses a preassembled connector which comprises a shell, the shell is provided with a through hole allowing a terminal to be inserted therein, the shell is provided with a limiting strip used for abutting against the terminal, the shell is provided with a limiting shell, the limiting shell is provided with a limiting hole allowing the terminal to penetrate therein, and the limiting hole is provided with a second limiting groove. A first limiting groove is formed in the bottom wall of the second limiting groove, a fixing block is arranged on the limiting shell, and a first fixing groove and a second fixing groove are formed in the shell; when the fixing block is located in the first fixing groove, the limiting strip abuts against the groove wall of the first limiting groove, and the limiting strip does not extrude the terminal. When the fixing block is located in the second fixing groove, the limiting strip abuts against the groove wall of the second limiting groove, the limiting strip extrudes the terminal, the shell and the limiting shell can be pre-assembled before transportation, a customer does not need to assemble the shell and the limiting shell, and assembly of the customer is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to a preassembled connector. BACKGROUND

[0002] The connector is a device for connecting two active devices or systems, and is mainly used for transmitting current, signals or data. The connector is widely used in various fields, and can be applied to the panel of an electric vehicle to realize signal transmission of the electric vehicle. A fixed shell is usually fixed on a circuit board, and the connector is installed on the fixed shell to realize connection and fixation of terminals and pins.

[0003] In the related art, the connector includes a shell, a waterproof ring is sleeved on the shell, a limiting shell is arranged on the shell, a through hole for inserting a terminal is formed in the shell, a limiting strip is arranged on the shell and used for abutting against the terminal, a limiting hole for inserting the terminal is formed in the limiting shell, and a limiting groove is formed in the hole wall of the limiting hole; when the limiting shell is installed on the shell, the groove wall of the limiting groove drives the limiting strip to abut against the terminal.

[0004] Since the connector has many components, the manufacturer needs to separately transport each part of the connector to the customer after manufacturing, and the customer needs to assemble the connector by himself, which is relatively cumbersome for the customer and affects the quick use of the customer. SUMMARY

[0005] In order to improve the problem that the connector is relatively cumbersome to assemble, the present application provides a preassembled connector.

[0006] The preassembled connector provided by the present application adopts the following technical scheme: The preassembled connector includes a shell, a through hole for inserting a terminal is formed in the shell, a limiting strip for abutting against the terminal is arranged on the shell, a limiting shell is arranged on the shell, a limiting hole for passing the terminal is formed in the limiting shell, a second limiting groove is formed in the limiting hole, a first limiting groove is formed in the bottom wall of the second limiting groove, a fixed block is arranged on the limiting shell, and a first fixing groove and a second fixing groove are formed in the shell; when the fixed block is located in the first fixing groove, the limiting strip abuts against the groove wall of the first limiting groove, and the limiting strip does not extrude the terminal; when the fixed block is located in the second fixing groove, the limiting strip abuts against the groove wall of the second limiting groove, and the limiting strip extrudes the terminal.

[0007] By adopting the technical scheme, the manufacturer inserts the fixed block into the first fixing groove, and the groove wall of the first limiting groove abuts against the limiting strip, so that the limiting strip cannot extrude the terminal, thereby facilitating the user to insert the terminal into the connector, and at this time, the fixed block is inserted into the first fixing groove, so that the shell and the limiting shell can be fixed to each other, the possibility of separation between the shell and the limiting shell is reduced, the shell and the limiting shell can be pre-assembled before transportation, and the customer does not need to assemble the shell and the limiting shell, thereby facilitating the customer's assembly; when the customer assembles the connector, after the customer installs the terminal, the customer only needs to press the limiting shell, and the fixed block is moved from the first fixing groove to the second fixing groove, and the bottom wall of the second limiting groove is provided with the first limiting groove, so that the bottom wall of the second limiting groove applies a force to the limiting strip, thereby facilitating the limiting strip to extrude the terminal, and preventing the terminal from being separated from the shell.

[0008] Optionally, the shell is provided with an installation strip which is bent, the installation strip is provided with an installation block, the shell is provided with a locking strip which is inserted between the installation strip and the shell, and the locking strip is provided with a locking block; when the locking strip is inserted between the installation strip and the shell, the locking block pushes the installation strip to protrude from the shell.

[0009] By adopting the technical scheme, the installation strip is bent on the shell, the shell needs to be connected and fixed with the fixed shell, the installation block is inserted into the hole of the fixed shell, the user needs to insert the locking strip between the installation strip and the shell, the locking block can push the installation strip to move away from the shell, the installation strip is inclined, and the installation block can more stably fix the fixed shell.

[0010] Optionally, the shell is provided with a locking groove for inserting the locking strip, the groove wall of the locking groove is provided with a stop block, and the locking block is provided with a first stop groove and a second stop groove; when the stop block is inserted into the first stop groove, the locking block does not abut against the installation strip; and when the stop block is inserted into the second stop groove, the locking block abuts against the installation strip.

[0011] By adopting the technical scheme, the stop block is inserted into the first stop groove, the locking block and the shell can be pre-installed and fixed, the locking block does not abut against the installation strip at this time, the user can directly install the fixed shell and the shell, then the user presses the locking strip, the stop block is moved from the first stop groove to the second stop groove, the locking block abuts against the installation strip, and the locking strip can more reliably lock the shell and the fixed shell; the stop block is inserted into the first stop groove, the locking strip and the shell can be pre-assembled, the user does not need to assemble the locking strip and the shell, and the user can quickly fix the shell and the fixed shell.

[0012] Optionally, the groove wall of the first stop groove away from the second stop groove is a plane, and the groove wall of the first stop groove close to the second stop groove is an arc surface.

[0013] By adopting the above technical scheme, the stop block is not easy to be separated from the shell from the first stop groove, that is, the fixing between the locking strip and the shell can be more reliable, because the groove wall of the first stop groove close to the second stop groove is an arc surface, so that the stop block can be moved from the first stop groove to the second stop groove, so as to facilitate the user to slide the locking strip.

[0014] Optionally, a ring groove is formed on the outer surface of the shell, the ring groove penetrates the end surface of the shell, a waterproof ring is arranged in the ring groove, and the limiting shell is located on the side of the waterproof ring facing the penetration direction of the ring groove.

[0015] By adopting the above technical scheme, the ring groove penetrates the end surface of the shell, and the limiting shell is located on the side of the waterproof ring facing the penetration direction of the ring groove, so that the shell and the limiting shell can limit the waterproof part, so that the waterproof part, the shell and the limiting shell can be assembled together, and the user does not need to assemble the waterproof part and the shell again, further reducing the difficulty of user assembly.

[0016] Optionally, a through hole is formed on the limiting strip, a fixed strip is arranged on the hole wall of the through hole, the fixed block is arranged on the fixed strip, and the fixed strip can be deformed in the through hole.

[0017] By adopting the above technical scheme, when the fixed block moves from the first fixed groove to the second fixed groove, the fixed block is arranged on the fixed strip, and the fixed strip is arranged in the through hole, so that the fixed strip can be deformed in the through hole, so that the fixed block is separated from the first fixed groove, and the operation of moving the fixed block to the second fixed groove is more smooth.

[0018] Optionally, a clamping strip for inserting into the through hole is arranged on the limiting shell, and a clamping block is arranged on the clamping strip; when the clamping strip is inserted into the through hole, the clamping block is located on the movement path of the limiting shell from the first fixed groove to the second fixed groove.

[0019] By adopting the above technical scheme, the clamping strip is arranged in the through hole, and the clamping block is located on the moving path of the limiting shell from the first fixing groove to the second fixing groove, so that the clamping block can limit the continuous movement of the limiting shell, and the fixing block can be stably located in the first fixing groove, avoiding the possibility that the fixing block moves from the first fixing groove to the second fixing groove during transportation of the connector. When the user inserts the terminal, if the fixing block is located in the second fixing groove, the terminal insertion will cause damage to the terminal, so the user needs to confirm the position of the limiting shell before inserting the terminal. In the automatic assembly line of the connector, it is difficult to confirm the position of the limiting shell, and in the present application, the movement of the limiting shell is limited by the clamping block, so that the user does not need to check the position of the limiting shell, and only needs to pull out the clamping strip from the through hole, without the need to confirm the position of the limiting shell, which is convenient for the user to automatically assemble the connector.

[0020] Optionally, the clamping strip is provided with a protruding strip, and the protruding strip is provided with a protruding block, and the limiting shell is located between the protruding block and the clamping strip.

[0021] By adopting the above technical scheme, the limiting shell is located between the protruding block and the clamping strip, so that the clamping strip can be stably located on the limiting shell, reducing the possibility of the clamping strip coming off the through hole during transportation, and increasing the stability of the clamping strip in the through hole.

[0022] Optionally, the limiting strip is provided with a groove, and when the clamping block abuts against the side of the limiting shell away from the shell, the protruding block is inserted into the groove.

[0023] By adopting the above technical scheme, the user pulls out the clamping strip from the through hole, at this time the clamping strip drives the clamping block to move, so that the clamping block abuts against the side of the limiting shell away from the shell, so that the clamping block does not limit the limiting shell, at this time the protruding block is inserted into the groove, so that the protruding block and the limiting strip are fixed with each other. If the staff forgets to press the limiting shell, since the shell needs to be installed in the fixed shell, and the clamping strip protrudes from the shell, the fixed shell can drive the clamping strip to move, so that the clamping strip drives the limiting shell to move, so that the fixing block moves from the first fixing groove to the second fixing groove, thereby reducing the occurrence of the situation that the staff forgets to move the limiting shell and affects the fixing of the terminal.

[0024] In summary, the present application has at least one of the following beneficial technical effects: 1. The manufacturer inserts the fixed block into the first fixed slot, so that the wall of the first limiting slot abuts the limiting strip, so that the limiting strip does not extrude the terminal, so as to facilitate the user to insert the terminal into the connector, and at this time, due to the insertion of the fixed block into the first fixed slot, the shell and the limiting shell can be fixed to each other, reducing the possibility of separation between the shell and the limiting shell, allowing the shell and the limiting shell to be pre-assembled before transportation, so that the customer does not need to assemble the shell and the limiting shell, facilitating the customer's assembly; when the customer assembles the connector, after the customer installs the terminal, the customer only needs to press the limiting shell, and the fixed block moves from the first fixed slot to the second fixed slot, and the bottom wall of the second limiting slot is provided with a first limiting slot, so that the bottom wall of the second limiting slot applies force to the limiting strip, so as to extrude the limiting strip and the terminal, so that the terminal is not easy to separate from the shell.

[0025] 2. The stop block is inserted into the first stop slot, so that the locking block and the shell can be pre-installed and fixed, and at this time the locking block does not abut the mounting strip, and the user can directly install the fixed shell and the shell, and then the user presses the locking strip, and the stop block moves from the first stop slot to the second stop slot, so that the locking block abuts the mounting strip, so that the locking strip can more firmly lock the shell and the fixed shell; by inserting the stop block into the first stop slot, the locking strip and the shell can be pre-assembled, so that the user does not need to assemble the locking strip and the shell, facilitating the user to quickly fix the shell and the fixed shell. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of embodiment 1; Figure 2 is an exploded schematic diagram of the limiting shell in embodiment 1; Figure 3 is a structural schematic diagram of the fixed block in embodiment 1; Figure 4 is a sectional view along the A-A line in Figure 1 Figure 5 is an enlarged schematic diagram of part B in Figure 4 Figure 6 is an exploded schematic diagram of the locking strip in embodiment 1; Figure 7 is a structural schematic diagram of the stop block in embodiment 1; Figure 8 is a structural schematic diagram of embodiment 2; Figure 9 is a structural schematic diagram of the clamping block in embodiment 2; Figure 10 is a structural schematic diagram of the groove in embodiment 2.

[0027] ​​Fig. 1 is a shell; 11 is a through hole; 12 is a ring groove; 13 is a waterproof ring; 14 is a first fixing groove; 141 is a second fixing groove; 15 is a limiting strip; 16 is a mounting strip; 161 is a mounting block; 17 is a supporting strip; 171 is a locking groove; 172 is a stop block; 2 is a limiting shell; 21 is a limiting hole; 22 is a through hole; 221 is a fixing strip; 222 is a fixing block; 23 is a first limiting groove; 231 is a second limiting groove; 3 is a locking strip; 31 is a locking block; 32 is a locking pin; 33 is a first stop groove; 34 is a second stop groove; 35 is a locking plate; 4 is a clamping block; 41 is a clamping strip; 42 is a protruding strip; 43 is a protruding block; 44 is a recess. DETAILED DESCRIPTION

[0028] The following will be described in detail in combination with the accompanying drawings. Figures 1-10 The present application is further described in detail.

[0029] Example 1 The present embodiment discloses a pre-assembled connector. Referring to Figure 1 A pre-assembled connector, comprising a shell 1, the shell 1 is provided with a plurality of through holes 11 for inserting terminals, the through holes 11 extend along the length direction of the shell 1.

[0030] Referring to Figure 1 and Figure 2 The outer surface of the shell 1 is provided with a ring groove 12, the ring groove 12 penetrates to the end surface of the shell 1. The shell 1 is sleeved with a waterproof ring 13, the waterproof ring 13 is sleeved on the ring groove 12. The shell 1 is provided with a limiting shell 2, the limiting shell 2 is provided with a plurality of limiting holes 21 for the terminals to pass through, the limiting holes 21 are provided with a plurality of limiting holes 21. The limiting shell 2 is sleeved on the ring groove 12, and the limiting shell 2 is located on the side of the waterproof ring 13 close to the penetrating direction of the ring groove 12.

[0031] Referring to Figure 2 and Figure 3 The surfaces of the opposite sides of the limiting shell 2 are both provided with a through hole 22, the through hole 22 extends along the height direction of the limiting shell 2. A plurality of fixing strips 221 are fixedly connected on the hole wall of the through hole 22, and the fixing strips 221 have elastic deformation ability, the fixing strips 221 extend along the height direction of the limiting shell 2. A plurality of fixing blocks 222 are integrally formed on the fixing strips 221 close to the direction of the limiting hole 21.

[0032] Referring to Figure 2 and Figure 3The first fixing groove 14 is located on one side of the second fixing groove 141 close to the penetrating direction of the ring groove 12, and the first fixing groove 14 and the second fixing groove 141 are both for inserting the fixing block 222. When the fixing block 222 is inserted into the first fixing groove 14, the shell 1 and the limiting shell 2 are relatively fixed, and the shell 1 and the limiting shell 2 are in a pre-installation state. When the fixing block 222 is inserted into the second fixing groove 141, the shell 1 and the limiting shell 2 are in a completed assembly state, and the shell 1 and the limiting shell 2 are fixed to each other.

[0033] With reference to Figure 2 and Figure 3 , the waterproof ring 13 is sleeved on the ring groove 12, then the staff member sleeves the limiting shell 2 on the ring groove 12, inserts the fixing block 222 into the first fixing groove 14, realizes the pre-assembly of the limiting shell 2 and the shell 1, at this time one end of the waterproof ring 13 abuts against the groove wall of the ring groove 12, the other end of the waterproof ring 13 abuts against the limiting shell 2, so that the limiting shell 2 and the shell 1 can limit the movement of the waterproof ring 13.

[0034] With reference to Figure 2 and Figure 4 , the shell 1 is fixedly connected with a plurality of limiting strips 15, and the plurality of limiting strips 15 extend along the length direction of the through hole 11. The limiting strip 15 can abut against the terminal inserted into the through hole 11 to limit the movement of the terminal in the through hole 11.

[0035] With reference to Figure 5 , the hole wall of the limiting hole 21 is provided with a first limiting groove 23 extending along the length direction of the limiting hole 21. The bottom wall of the first limiting groove 23 is provided with a second limiting groove 231 extending along the length direction of the limiting hole 21, and the second limiting groove 231 communicates with the limiting hole 21.

[0036] With reference to Figure 2 and Figure 5 , when the limiting shell 2 is installed on the shell 1, the groove wall of the second limiting groove 231 abuts against the limiting strip 15, so that the limiting strip 15 is extruded towards the side of the terminal. When the limiting shell 2 is pre-installed on the shell 1, the groove wall of the first limiting groove 23 abuts against the limiting strip 15, and the limiting strip 15 will not extrude the terminal.

[0037] With reference to Figure 1 and Figure 6 , the outer surface of the shell 1 is integrally formed with a mounting strip 16, and the mounting strip 16 is L-shaped and bent on the shell 1. The surface of the mounting strip 16 away from the through hole 11 is integrally formed with a mounting block 161, and the mounting block 161 has two. The shell 1 can be installed on the fixed shell, wherein the mounting block 161 is inserted into the corresponding hole of the fixed shell, at this time the mounting strip 16 is deformed towards the direction away from the shell 1, realizing the relative fixation of the shell 1 and the fixed shell.

[0038] With reference to Figure 6 , the shell 1 is provided with a locking strip 3, which can be inserted between the mounting strip 16 and the shell 1. The surface of the locking strip 3 is integrally formed with a plurality of locking blocks 31, which are arrayed along the length direction of the locking strip 3. The surface of the locking strip 3 is integrally formed with two locking pins 32, the surface of the locking pin 32 away from the other locking pin 32 is provided with a first stop groove 33 and a second stop groove 34, and the first stop groove 33 is located on the side of the second stop groove 34 away from the locking strip 3.

[0039] With reference to Figure 6 and Figure 7 , the surface of the shell 1 is integrally formed with two support strips 17 on the side of the locking strip 3, and the surface of the two support strips 17 and the shell 1 is formed with a locking groove 171 for the insertion of the locking strip 3. The groove wall of the locking groove 171 is integrally formed with a stop block 172, which can be inserted into the first stop groove 33 or the second stop groove 34.

[0040] With reference to Figure 6 and Figure 7 , the groove wall of the first stop groove 33 away from the second stop groove 34 is a plane, and the groove wall of the first stop groove 33 close to the second stop groove 34 is arc-shaped, so as to facilitate the movement of the stop block 172 from the first stop groove 33 to the second stop groove 34. The groove wall of the second stop groove 34 close to the first stop groove 33 is arc-shaped, so as to facilitate the movement of the stop block 172 from the second stop groove 34 to the first stop groove 33.

[0041] With reference to Figure 6 and Figure 7 , when the stop block 172 is inserted into the first stop groove 33, the locking strip 3 and the shell 1 are pre-assembled. When the stop block 172 is inserted into the second stop groove 34, the mounting strip 16 is inclined away from the shell 1, the locking strip 3 is fixed to the shell 1, and at this time the shell 1 is fixed to the fixed shell.

[0042] With reference to Figure 6 and Figure 7 , the surface of the locking strip 3 is integrally formed with a locking plate 35, which abuts against the shell 1. The staff can take out the locking strip 3 from the locking groove 171 through the locking plate 35.

[0043] The implementation principle of the embodiment 1 is that the customer installs the terminal and the wire in the shell 1, then the customer presses the limiting shell 2 to move the fixing block 222 from the first fixing groove 14 to the second fixing groove 141, and finally the customer installs the shell 1 on the fixed shell and presses the locking plate 35 to move the stop block 172 from the first stop groove 33 to the second stop groove 34, so as to realize the relative fixation of the shell 1 and the fixed shell.

[0044] Embodiment 2 Referring to Figure 8 The difference between this embodiment and embodiment 1 is that the limiting shell 2 is provided with two clamping blocks 4, and the surface of the clamping block 4 is integrally formed with a plurality of clamping strips 41, which can be inserted into different through holes 22.

[0045] Referring to Figure 9 The surface of the clamping strip 41 is integrally formed with a protruding strip 42, which is perpendicular to the clamping strip 41. The surface of the protruding strip 42 is integrally formed with a protruding block 43, which is perpendicular to the protruding strip 42, and the protruding block 43 is parallel to the clamping strip 41.

[0046] Referring to Figure 8 and Figure 9 When the clamping strip 41 is inserted into the through hole 22, the clamping block 4 abuts against the side surface of the limiting shell 2 close to the waterproof ring 13, at this time, the clamping block 4 limits the limiting shell 2 to continue moving in the direction of the waterproof ring 13, and the limiting shell 2 is located between the protruding block 43 and the clamping strip 41 to limit the clamping strip 41 from being separated from the through hole 22.

[0047] Referring to Figure 8 and Figure 9 The user needs to pull the clamping strip 41 away from the shell 1, so that the clamping block 4 is separated from the movement path of the limiting shell 2, the clamping block 4 can abut against the surface of the limiting shell 2 away from the shell 1, and the clamping block 4 can abut against the inner wall of the fixed shell, at this time, the protruding block 43 is deformed to move to the through hole 22.

[0048] Referring to Figure 9 and Figure 10 The side surface of the limiting strip 15 is provided with a groove 44 for inserting the protruding block 43. When the shell 1 is installed in the fixed shell, the inner wall of the fixed shell can abut against the clamping block 4 to drive the limiting strip 15 to move, and the limiting strip 15 can drive the limiting shell 2 to move, thereby assembling the limiting shell 2 and the shell 1.

[0049] The implementation principle of embodiment 2 is that the user first pulls the clamping strip 41 away from the shell 1, so that the clamping block 4 is separated from the movement path of the limiting shell 2, at this time, the protruding block 43 is inserted into the groove 44, and then the shell 1 is installed in the fixed shell, so that the fixed block 222 is moved from the first fixed groove 14 to the second fixed groove 141, thereby assembling the limiting shell 2 and the shell 1.

[0050] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the terms used in the specification and claims of the present application, such as "first", "second", "third", and the like, are not intended to denote any order, quantity, or importance, but are merely used to distinguish one component from another. The terms "one", "a", and the like are not intended to denote the number of objects, but are intended to denote the presence of at least one. The terms "comprise", "include" and the like are intended to denote the presence of the elements or components listed after the terms "comprise", "include" and the like, but do not exclude the presence of other elements or components. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships may also be changed accordingly.

[0051] The above description is merely the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, and the like made within the design concept of the present application shall be included in the protection scope of the present application.

Claims

1. A pre-assembled connector comprising a housing (1) having a through hole (11) for inserting a terminal, the housing (1) being provided with a stopper (15) for abutting against the terminal, characterized in that: The shell (1) is provided with a limiting shell (2), the limiting shell (2) is provided with a limiting hole (21) for the terminal to pass through, the limiting hole (21) is provided with a second limiting groove (231), the bottom wall of the second limiting groove (231) is provided with a first limiting groove (23), the limiting shell (2) is provided with a fixed block (222), the shell (1) is provided with a first fixed groove (14) and a second fixed groove (141), when the fixed block (222) is located in the first fixed groove (14), the limiting strip (15) abuts the groove wall of the first limiting groove (23), and the limiting strip (15) is not extruded by the terminal, when the fixed block (222) is located in the second fixed groove (141), the limiting strip (15) abuts the groove wall of the second limiting groove (231), and the limiting strip (15) extrudes the terminal.

2. A pre-assembled connector according to claim 1, characterized in that: The shell (1) is provided with a mounting strip (16), the mounting strip (16) is provided with a mounting block (161), the shell (1) is provided with a locking strip (3), the locking strip (3) is used for being inserted between the mounting strip (16) and the shell (1), and the locking strip (3) is provided with a locking block (31); when the locking strip (3) is inserted between the mounting strip (16) and the shell (1), the locking block (31) pushes the mounting strip (16) to protrude from the shell (1).

3. A pre-assembled connector according to claim 2, wherein: The shell (1) is provided with a locking groove (171) for inserting the locking strip (3), the groove wall of the locking groove (171) is provided with a stop block (172), and the locking block (31) is provided with a first stop groove (33) and a second stop groove (34); when the stop block (172) is inserted into the first stop groove (33), the locking block (31) does not abut the mounting strip (16); when the stop block (172) is inserted into the second stop groove (34), the locking block (31) abuts the mounting strip (16).

4. A pre-assembled connector according to claim 3, wherein: The groove wall of the first stop groove (33) away from the second stop groove (34) is a plane, and the groove wall of the first stop groove (33) close to the second stop groove (34) is provided with an arc surface.

5. A prepackaged connector as defined in claim 1, wherein: The outer surface of the shell (1) is provided with a ring groove (12), the ring groove (12) penetrates to the end surface of the shell (1), the ring groove (12) is provided with a waterproof ring (13), and the limiting shell (2) is located on the side of the waterproof ring (13) facing the penetration direction of the ring groove (12).

6. A prepackaged connector as defined in claim 1, wherein: The limiting strip (15) is provided with a through hole (22), the hole wall of the through hole (22) is provided with a fixed strip (221), the fixed block (222) is arranged on the fixed strip (221), and the fixed strip (221) can be deformed in the through hole (22).

7. A pre-assembled connector according to claim 6, wherein: The limiting shell (2) is provided with a clamping strip (41) for inserting the through hole (22), and the clamping strip (41) is provided with a clamping block (4); when the clamping strip (41) is inserted into the through hole (22), the clamping block (4) is located on the movement path of the limiting shell (2) from the first fixed groove (14) to the second fixed groove (141).

8. A pre-assembled connector according to claim 7, wherein: The card strip (41) is provided with a convex strip (42), the convex strip (42) is provided with a convex block (43), and the limiting shell (2) is located between the convex block (43) and the card strip (41).

9. A pre-assembled connector according to claim 8, wherein: The limiting strip (15) is provided with a groove (44); when the clamping block (4) abuts against the side of the limiting shell (2) away from the shell (1), the convex block (43) is inserted into the groove (44).

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