A pre-assembled connector

Abstract

The application relates to the technical field of connectors and discloses a preassembled connector which comprises a shell, a limiting strip for abutting against a terminal is arranged on the shell, a limiting shell is arranged on the shell, limiting holes for the terminal to pass through are arranged on the limiting shell, a second limiting groove is arranged on the limiting hole, a first limiting groove is arranged on 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 arranged on 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, and the limiting strip extrudes the terminal; the shell and the limiting shell of the application can be preassembled before transportation, so that the customer does not need to assemble the shell and the limiting shell, thereby facilitating the assembly of the customer.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and in particular to a pre-assembled connector. Background Technology

[0002] A connector is a device used to connect two active devices or systems. Connectors are mainly used to transmit current, signals or data. Connectors have a wide range of applications and can be used on the panels of electric vehicles to realize the signal transmission of electric vehicles. There is usually a fixed shell on the circuit board, and the connector is installed on the fixed shell to realize the connection and fixation of terminals and pins.

[0003] In related technologies, the connector includes a housing, a waterproof ring fitted on the housing, a limiting shell on the housing, a through hole for inserting a terminal on the housing, a limiting strip on the housing for abutting the terminal, and a limiting hole for inserting a terminal on the limiting shell. The limiting hole has a limiting groove on its wall. When the limiting shell is installed on the housing, the groove wall of the limiting groove drives the limiting strip to abut the terminal.

[0004] Because connectors have many components, manufacturers need to ship each component separately to customers after manufacturing, requiring customers to assemble them themselves. This makes the process cumbersome for customers and hinders their ability to use the connector quickly. Summary of the Invention

[0005] To address the issue of cumbersome connector assembly, this application provides a pre-assembled connector.

[0006] This application provides a pre-installed connector, which adopts the following technical solution: A pre-assembled connector includes a housing with a through hole for inserting a terminal, a limiting strip for abutting the terminal, a limiting shell with a limiting hole for the terminal to pass through, a second limiting groove in the limiting hole, a first limiting groove on the bottom wall of the second limiting groove, a fixing block on the limiting shell, and a first fixing groove and a second fixing groove on the housing. 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 compress 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, and the limiting strip compresses the terminal.

[0007] By adopting the above technical solution, the manufacturer inserts the fixing block into the first fixing groove, allowing the groove wall of the first limiting groove to abut against the limiting strip, preventing the limiting strip from squeezing the terminal. This facilitates the user's insertion of the terminal into the connector. Furthermore, because the fixing block is inserted into the first fixing groove, the housing and the limiting shell are mutually fixed, reducing the possibility of separation between them. This allows for pre-assembly of the housing and the limiting shell before transportation, eliminating the need for customer assembly. When the customer assembles the connector, after installing the terminal, they only need to press the limiting shell to move the fixing block from the first fixing groove to the second fixing groove. Since the bottom wall of the second limiting groove has a first limiting groove, the bottom wall of the second limiting groove applies force to the limiting strip, causing the limiting strip to squeeze the terminal and preventing the terminal from easily detaching from the housing.

[0008] Optionally, the housing is provided with a bent mounting strip, the mounting strip is provided with a mounting block, and the housing is provided with a locking strip. The locking strip is used to insert between the mounting strip and the housing, and the locking strip is provided with a locking block. When the locking strip is inserted between the mounting strip and the housing, the locking block pushes the mounting strip out of the housing.

[0009] By adopting the above technical solution, the mounting strip is bent and set on the housing. The housing needs to be connected and fixed with the fixed housing. The mounting block is inserted into the hole of the fixed housing. The user needs to insert the locking strip between the mounting strip and the housing, so that the locking block can push the mounting strip to move away from the housing, so that the mounting strip tilts, so that the mounting block can more stably fix the fixed housing.

[0010] Optionally, the housing is provided with a locking groove for inserting a locking strip, and a stop block is provided on the groove wall of the locking groove. 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 mounting strip. When the stop block is inserted into the second stop groove, the locking block abuts against the mounting strip.

[0011] By adopting the above technical solution, since the stop block is inserted into the first stop groove, the locking block and the housing can be pre-installed and fixed. At this time, the locking block does not abut against the mounting strip, and the user can directly install the fixed housing and the housing. Then, the user presses the locking strip, which moves the stop block from the first stop groove to the second stop groove, so that the locking block abuts against the mounting strip, making the locking strip more secure in locking the housing and the fixed housing. By inserting the stop block into the first stop groove, the locking strip and the housing can be pre-assembled, so that the user does not need to assemble the locking strip and the housing, which allows the user to quickly fix the housing and the fixed housing.

[0012] Optionally, the wall of the first stop groove away from the second stop groove is flat, while the wall of the first stop groove near the second stop groove is curved.

[0013] By adopting the above technical solution, the wall of the first stop groove away from the second stop groove is flat, making it difficult for the stop block to detach from the housing from the first stop groove, that is, the fixation between the locking strip and the housing can be more reliable; since the wall of the first stop groove near the second stop groove is arc-shaped, the stop block can move from the first stop groove into the second stop groove, so that the user can slide the locking strip.

[0014] Optionally, an annular groove is formed on the outer surface of the housing, the annular groove extends to the end face of the housing, a waterproof ring is provided in the annular groove, and the limiting shell is located on the side of the waterproof ring facing the direction of the annular groove.

[0015] By adopting the above technical solution, the annular groove penetrates the end face of the shell, and the limiting shell is located on the side of the waterproof ring facing the direction of the annular groove penetration. This allows the shell and the limiting shell to limit the waterproof component, enabling the waterproof component, shell, and limiting shell to be assembled together. This eliminates the need for the user to reassemble the waterproof component and shell, further reducing the difficulty of assembly for the user.

[0016] Optionally, the limiting strip has a through hole, the wall of the through hole has a fixing strip, the fixing block is disposed on the fixing strip, and the fixing strip can deform within the through hole.

[0017] By adopting the above technical solution, when the fixing block moves from the first fixing groove to the second fixing groove, the fixing block is set on the fixing strip, and the fixing strip is set in the through hole, so that the fixing strip can deform in the through hole, so that the fixing block can be disengaged from the first fixing groove, making the operation of moving the fixing block to the second fixing groove smoother.

[0018] Optionally, the limiting shell is provided with a retaining strip for inserting into the through hole, and the retaining strip is provided with a retaining block; when the retaining strip is inserted into the through hole, the retaining block is located on the moving path of the limiting shell from the first fixing groove to the second fixing groove.

[0019] By adopting the above technical solution, the locking strip is set in the through hole, and the locking block is located on the movement path of the limiting shell from the first fixing groove to the second fixing groove. This allows the locking block to restrict the continued movement of the limiting shell, ensuring that the fixing block is stably located in the first fixing groove. This prevents the fixing block from moving from the first fixing groove to the second fixing groove during the connector's transportation. When the user inserts the terminal, if the fixing block is located in the second fixing groove, the terminal insertion may damage the terminal. Therefore, the user needs to confirm the position of the limiting shell before inserting the terminal. In automated connector assembly lines, it is difficult to confirm the position of the limiting shell. However, in this application, the locking block restricts the movement of the limiting shell, so the user does not need to check the position of the limiting shell. They only need to pull the locking strip out of the through hole without confirming the position of the limiting shell, which facilitates the operation of automated connector assembly for customers.

[0020] Optionally, the card strip is provided with a protrusion, the protrusion is provided with a protrusion, and the limiting shell is located between the protrusion and the card strip.

[0021] By adopting the above technical solution, the limiting shell is located between the protrusion and the locking strip, which enables the locking strip to be stably positioned on the limiting shell, reducing the possibility of the locking strip coming off the through hole during transportation and increasing the stability of the locking strip in the through hole.

[0022] Optionally, the limiting strip has a groove; when the locking block abuts against the side of the limiting shell away from the shell, the protrusion is inserted into the groove.

[0023] By adopting the above technical solution, the user pulls the locking strip out of the through hole. At this time, the locking strip drives the locking block to move, so that the locking block abuts against the side of the limiting shell away from the housing, so that the locking block will not limit the limiting shell. At this time, the protrusion is inserted into the groove, so that the protrusion and the limiting strip are fixed to each other. If the operator forgets to press the limiting shell, since the housing needs to be installed in the fixed shell, and the locking strip protrudes from the housing, the fixed shell can drive the locking strip to move, so that the locking strip drives the limiting shell to move, realizing that the fixed block moves from the first fixed groove to the second fixed groove, thereby reducing the occurrence of the operator forgetting to move the limiting shell and affecting the terminal fixing.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The manufacturer inserts the fixing block into the first fixing groove, allowing the groove wall of the first limiting groove to abut against the limiting strip. This prevents the limiting strip from squeezing the terminal, making it easier for the user to insert the terminal into the connector. At this time, because the fixing block is inserted into the first fixing groove, the housing and the limiting shell are fixed together, reducing the possibility of separation between them. This allows the housing and limiting shell to be pre-assembled before transportation, eliminating the need for the customer to assemble them separately. When the customer assembles the connector, after installing the terminal, the customer only needs to press the limiting shell to move the fixing block from the first fixing groove to the second fixing groove. Because the bottom wall of the second limiting groove has the first limiting groove, the bottom wall of the second limiting groove applies force to the limiting strip, causing the limiting strip to squeeze the terminal and preventing the terminal from easily detaching from the housing.

[0025] 2. Because the stop block is inserted into the first stop groove, the locking block and the housing can be pre-installed and fixed. At this time, the locking block does not abut against the mounting strip, and the user can directly install the fixed housing and the housing. Then, the user presses the locking strip to move the stop block from the first stop groove to the second stop groove, so that the locking block abuts against the mounting strip, making the locking strip more secure in locking the housing and the fixed housing. By inserting the stop block into the first stop groove, the locking strip and the housing can be pre-assembled, so that the user does not need to assemble the locking strip and the housing, so that the user can quickly fix the housing and the fixed housing. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is an exploded view of the limiting shell in Example 1; Figure 3 This is a schematic diagram of the structure highlighting the fixing block in Embodiment 1; Figure 4 It is along Figure 1 Sectional view of line AA in the middle; Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle; Figure 6 This is an exploded view showing the locking bar in Example 1; Figure 7 This is a schematic diagram of the structure of the stop block highlighted in Example 1; Figure 8 This is a structural schematic diagram of Example 2; Figure 9 This is a schematic diagram of the prominent card block structure in Example 2; Figure 10 This is a schematic diagram of the structure with prominent grooves in Example 2.

[0027] Reference numerals: 1. Housing; 11. Perforation; 12. Annular groove; 13. Waterproof ring; 14. First fixing groove; 141. Second fixing groove; 15. Limiting strip; 16. Mounting strip; 161. Mounting block; 17. Supporting strip; 171. Locking groove; 172. Stop block; 2. Limiting shell; 21. Limiting hole; 22. Through hole; 221. Fixing strip; 222. Fixing block; 23. First limiting groove; 231. Second limiting groove; 3. Locking strip; 31. Locking block; 32. Locking pin; 33. First stop groove; 34. Second stop groove; 35. Locking plate; 4. Locking block; 41. Locking strip; 42. Protrusion; 43. Protrusion; 44. Groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0029] Example 1 This embodiment discloses a pre-assembled connector. (Refer to...) Figure 1 A pre-installed connector includes a housing 1, on which through holes 11 for inserting terminals are provided. Multiple through holes 11 are provided and extend along the length direction of the housing 1.

[0030] Reference Figure 1 and Figure 2 An annular groove 12 is formed on the outer surface of the housing 1, extending to the end face of the housing 1. A waterproof ring 13 is fitted onto the housing 1, and the waterproof ring 13 is fitted onto the annular groove 12. A limiting shell 2 is provided on the housing 1, and the limiting shell 2 has multiple limiting holes 21 for terminals to pass through. The limiting shell 2 is fitted onto the annular groove 12, and the limiting shell 2 is located on the side of the waterproof ring 13 closer to the direction of penetration of the annular groove 12.

[0031] Reference Figure 2 and Figure 3 The limiting shell 2 has through holes 22 on both sides of its surface, which extend along the height direction of the limiting shell 2. Multiple fixing strips 221 are fixedly connected to the walls of the through holes 22, and these fixing strips 221 have elastic deformation capability and extend along the height direction of the limiting shell 2. Multiple fixing blocks 222 are integrally formed on the fixing strips 221 near the limiting holes 21.

[0032] Reference Figure 2 and Figure 3The housing 1 has a first fixing groove 14 and a second fixing groove 141 on its opposite sides. The first fixing groove 14 is located on the side of the second fixing groove 141 closer to the through direction of the annular groove 12, and both the first fixing groove 14 and the second fixing groove 141 are for the insertion of the fixing block 222. When the fixing block 222 is inserted into the first fixing groove 14, the housing 1 and the limiting shell 2 are relatively fixed, and the housing 1 and the limiting shell 2 are in a pre-installed state. When the fixing block 222 is inserted into the second fixing groove 141, the housing 1 and the limiting shell 2 are in a fully assembled state, and the housing 1 and the limiting shell 2 are fixed to each other.

[0033] Reference Figure 2 and Figure 3 The waterproof ring 13 is fitted onto the annular groove 12. Then, the worker fits the limiting shell 2 onto the annular groove 12 and inserts the fixing block 222 into the first fixing groove 14 to achieve 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 annular groove 12, and 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 restrict the movement of the waterproof ring 13.

[0034] Reference Figure 2 and Figure 4 Multiple limiting strips 15 are fixedly connected to the housing 1, and the multiple limiting strips 15 extend along the length direction of the through hole 11. The limiting strips 15 can abut against the terminal inserted into the through hole 11 to restrict the movement of the terminal within the through hole 11.

[0035] Reference Figure 5 A first limiting groove 23 is provided on the wall of the limiting hole 21, and the first limiting groove 23 extends along the length direction of the limiting hole 21. A second limiting groove 231 is provided on the bottom wall of the first limiting groove 23, and the second limiting groove 231 extends along the length direction of the limiting hole 21 and is connected to the limiting hole 21.

[0036] Reference Figure 2 and Figure 5 When the limiting shell 2 is installed on the housing 1, the groove wall of the second limiting groove 231 abuts against the limiting strip 15, causing the limiting strip 15 to squeeze towards the terminal. When the limiting shell 2 is pre-installed on the housing 1, the groove wall of the first limiting groove 23 abuts against the limiting strip 15, and the limiting strip 15 will not squeeze the terminal.

[0037] Reference Figure 1 and Figure 6 An mounting strip 16 is integrally formed on the outer surface of the housing 1, and the mounting strip 16 is L-shaped and bent on the housing 1. Two mounting blocks 161 are integrally formed on the surface of the mounting strip 16 away from the through hole 11. The housing 1 can be mounted on a fixed housing, wherein the mounting blocks 161 are inserted into the corresponding holes in the fixed housing. At this time, the mounting strip 16 deforms in the direction away from the housing 1, thereby achieving relative fixation between the housing 1 and the fixed housing.

[0038] Reference Figure 6 The housing 1 is provided with a locking strip 3, which can be inserted between the mounting strip 16 and the housing 1. Multiple locking blocks 31 are integrally formed on the surface of the locking strip 3, and these blocks are arranged in an array along the length of the locking strip 3. Two locking pins 32 are integrally formed on the surface of the locking strip 3. A first stop groove 33 and a second stop groove 34 are formed on the surface of the locking pin 32 away from the other locking pin 32. The first stop groove 33 is located on the side of the second stop groove 34 away from the locking strip 3.

[0039] Reference Figure 6 and Figure 7 The housing 1 has two support bars 17 integrally formed on the side of the locking bar 3. The two support bars 17 and the surface of the housing 1 form a locking groove 171 for the locking bar 3 to be inserted. A stop block 172 is integrally formed on the groove wall of the locking groove 171. The stop block 172 can be inserted into the first stop groove 33 or the second stop groove 34.

[0040] Reference Figure 6 and Figure 7 The first stop groove 33 has a flat wall away from the second stop groove 34, while the wall of the first stop groove 33 near the second stop groove 34 is curved, so as to facilitate the movement of the stop block 172 from the first stop groove 33 into the second stop groove 34. The wall of the second stop groove 34 near the first stop groove 33 is also curved, so as to facilitate the movement of the stop block 172 from the second stop groove 34 into the first stop groove 33.

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

[0042] Reference Figure 6 and Figure 7 A locking plate 35 is integrally formed on the surface of the locking strip 3, and the locking plate 35 abuts against the housing 1. The operator can remove the locking strip 3 from the locking groove 171 through the locking plate 35.

[0043] The implementation principle of Example 1 is as follows: The customer installs the terminals and wires in the housing 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. Finally, the customer installs the housing 1 on the fixing shell and then presses the locking plate 35 to move the stop block 172 from the first stop groove 33 to the second stop groove 34, thereby achieving relative fixation between the housing 1 and the fixing shell.

[0044] Example 2 Reference Figure 8 The difference between this embodiment and embodiment 1 is that the limiting shell 2 is provided with two locking blocks 4, and multiple locking strips 41 are integrally formed on the surface of the locking blocks 4. The multiple locking strips 41 can be inserted into different through holes 22.

[0045] Reference Figure 9 The surface of the clip 41 is integrally formed with a raised strip 42, which is perpendicular to the clip 41. The surface of the raised strip 42 is integrally formed with a protrusion 43, which is perpendicular to the raised strip 42 and parallel to the clip 41.

[0046] Reference Figure 8 and Figure 9 When the locking strip 41 is inserted into the through hole 22, the locking block 4 abuts against the side of the limiting shell 2 near the waterproof ring 13. At this time, the locking block 4 restricts the limiting shell 2 from continuing to move towards the waterproof ring 13. The limiting shell 2 is located between the protrusion 43 and the locking strip 41 to prevent the locking strip 41 from disengaging from the through hole 22.

[0047] Reference Figure 8 and Figure 9 The user needs to pull the locking strip 41 away from the housing 1 so that the locking block 4 can disengage from the movement path of the limiting housing 2. The locking block 4 can abut against the surface of the limiting housing 2 away from the housing 1, and the locking block 4 can abut against the inner wall of the fixed housing. At this time, the protrusion 43 deforms and moves to the through hole 22.

[0048] Reference Figure 9 and Figure 10 The limiting strip 15 has a groove 44 on its side for the protrusion 43 to be inserted. When the housing 1 is installed in the fixed housing, the inner wall of the fixed housing can abut against the locking block 4, allowing the locking block 4 to move the limiting strip 15. The limiting strip 15 can move the limiting housing 2, thus realizing the assembly of the limiting housing 2 and the housing 1.

[0049] The implementation principle of Example 2 is as follows: The user first pulls the locking strip 41 away from the housing 1, so that the locking block 4 is disengaged from the movement path of the limiting housing 2. At this time, the protrusion 43 is inserted into the groove 44. As the housing 1 is installed in the fixed housing, the fixing block 222 moves from the first fixing groove 14 to the second fixing groove 141, thereby realizing the assembly of the limiting housing 2 and the housing 1.

[0050] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A pre-assembled connector, comprising a housing (1), wherein the housing (1) has a through hole (11) for inserting a terminal, and the housing (1) has a limiting strip (15) for abutting the terminal, characterized in that: The housing (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 fixing block (222), the housing (1) is provided with a first fixing groove (14) and a second fixing groove (141); when the fixing block (222) is located in the first fixing groove (14), the limiting strip (15) abuts against the groove wall of the first limiting groove (23), and the limiting strip (15) does not squeeze the terminal; when the fixing block (222) is located in the second fixing groove (141), the limiting strip (15) abuts against the groove wall of the second limiting groove (231), and the limiting strip (15) squeezes the terminal; The housing (1) is provided with a bent mounting strip (16), the mounting strip (16) is provided with a mounting block (161), the housing (1) is provided with a locking strip (3), the locking strip (3) is used to insert between the mounting strip (16) and the housing (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 housing (1), the locking block (31) pushes the mounting strip (16) to protrude from the housing (1); The housing (1) has a locking groove (171) for inserting the locking strip (3). The locking groove (171) has a stop block (172) on its groove wall. The locking block (31) has 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 against the mounting strip (16). When the stop block (172) is inserted into the second stop groove (34), the locking block (31) abuts against the mounting strip (16). The limiting shell (2) has through holes (22) on both sides of its surface. The through hole (22) has a fixing strip (221) on its wall. The fixing block (222) is set on the fixing strip (221). The fixing strip (221) can deform inside the through hole (22). The limiting shell (2) is provided with a locking strip (41) for inserting into the through hole (22), and the locking strip (41) is provided with a locking block (4); when the locking strip (41) is inserted into the through hole (22), the locking block (4) is located on the moving path of the limiting shell (2) from the first fixing groove (14) to the second fixing groove (141); The card strip (41) is provided with a protrusion (42), the protrusion (42) is provided with a protrusion (43), and the limiting shell (2) is located between the protrusion (43) and the card strip (41); The limiting strip (15) has a groove (44); when the locking block (4) abuts against the side of the limiting shell (2) away from the shell (1), the protrusion (43) is inserted into the groove (44).

2. A pre-assembled connector according to claim 1, characterized in that: The first stop groove (33) has a flat wall away from the second stop groove (34), while the first stop groove (33) has an arc-shaped wall near the second stop groove (34).

3. A pre-assembled connector according to claim 1, characterized in that: An annular groove (12) is provided on the outer surface of the housing (1). The annular groove (12) extends through to the end face of the housing (1). A waterproof ring (13) is provided inside the annular groove (12). The limiting shell (2) is located on the side of the waterproof ring (13) facing the direction of penetration of the annular groove (12).

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