Connector with TPA and CPA integrated structure
By using a hinged connection between the integrated connector body, CPA module, and TPA module, the problems of low material management and assembly efficiency in existing connectors are solved, achieving efficient connector assembly and stable fixation.
Patent Information
- Application Number
- CN202423318684.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing connectors have a separate structure, which makes them difficult to manage due to the large number of materials involved, and also hinders workers from quickly identifying and assembling them.
The connector adopts an integrated TPA and CPA structure. Through the one-piece molded connector body, CPA module and TPA module, the connector uses a hinge connection to achieve direct fixation of the wire and locking of the connector to the shell.
This reduces the number of parts required in the assembly process, improves material management efficiency, simplifies the identification and assembly process, and ensures the stable fixation of the connector.
Smart Images

Figure CN223785386U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of connector technology, specifically relating to a connector with an integrated TPA and CPA structure. Background Technology
[0002] Traditional connectors typically consist of a separate connector body, a connector positioning guarantee (CPA), and a terminal positioning guarantee (TPA). The CPA locks the connector body to the housing to prevent loosening. The TPA ensures that the wire terminals are fully seated within the connector body. During installation, the wire terminals are first inserted into the connector body. Then, the TPA is assembled onto the connector body, securing it in a locked position to prevent the terminals from coming off. Next, the CPA is assembled onto the connector body, locking the connector body to the housing.
[0003] Therefore, existing connectors have a large amount of material that is difficult to manage during assembly and is not conducive to workers' quick identification and assembly. If a connector with an integrated TPA and CPA structure could be provided, the assembly efficiency of the connector could be effectively improved. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a connector with an integrated TPA and CPA structure, so as to solve the problems that the existing connectors are mostly separate structures, the connectors have a lot of materials which are not easy to manage, and are not conducive to workers to quickly identify and assemble them.
[0005] One aspect of this utility model provides a connector with an integrated TPA and CPA structure, comprising an integrally formed connector body, a CPA module, and a TPA module.
[0006] The connector body has a first surface and a second surface; the connector body is formed with a plurality of wire end receiving holes along the longitudinal direction; the first surface is provided with a buckle, the second surface is provided with a riveting hole, and the riveting hole extends through to the wire end receiving hole;
[0007] The CPA module is hinged to the first surface via a first hinge. The CPA module includes a limiting block connected to the first hinge. When the CPA module rotates along the first hinge to a locked state, the limiting block is positioned between the latch and the first surface to keep the latch in a pop-up state.
[0008] The TPA module is hinged to the second surface via a second hinge. The TPA module includes a stop block, which is located on the side of the TPA module facing the second surface. When the TPA module rotates along the second hinge to the locked state, the stop block passes through the riveting hole and is inserted into the wire end receiving hole to limit the wire in the wire end receiving hole.
[0009] In one embodiment of this utility model, a plurality of riveting holes are provided, and the plurality of riveting holes are arranged parallel to each other in the transverse direction, and each riveting hole corresponds to a single wire end receiving hole.
[0010] The stop block includes a plurality of blocks, and the plurality of stop blocks are configured corresponding to the riveting holes.
[0011] In one embodiment of this utility model, the stop block is a stepped structure, which includes a first stepped segment and a second stepped segment. The first stepped segment is located at the end of the stop block near the second hinge and is used to avoid the wire. The second stepped segment is located at the end of the stop block away from the second hinge.
[0012] In one embodiment of this utility model, the first step segment is connected to the second hinge via a first inclined surface, and the second hinge is connected to the first step segment via a second inclined surface; the slope of the first inclined surface is greater than the slope of the second inclined surface.
[0013] In one embodiment of this utility model, a stop surface is provided on the side of the second step segment away from the first step segment;
[0014] When the stop block passes through the riveting hole and enters the wire end receiving hole, the stop surface is perpendicular to the central axis of the wire end receiving hole.
[0015] In one embodiment of this utility model, the first surface is provided with an outwardly protruding reinforcing structure, the reinforcing structure including symmetrically arranged first reinforcing ribs and second reinforcing ribs perpendicular to the first reinforcing ribs, and the buckle is located between the two first reinforcing ribs.
[0016] In one embodiment of this utility model, the two ends of the limiting block are respectively connected to the first hinge, a connecting seat is formed at the intersection of the first reinforcing rib and the second reinforcing rib, and the two ends of the first hinge are respectively connected to the connecting seat and the end of the limiting block.
[0017] In one solution of the present utility model, the limiting block includes a long strip component and a positioning component. The positioning component is arranged on the joint surface of the long strip component and the connecting seat. A limiting groove corresponding to the positioning component is arranged on the side surface of the connecting seat. The positioning component is arranged at a position close to the end of the long strip component;
[0018] When the CPA module rotates to the locked state, the positioning component slides into the limiting groove so that the long strip component abuts against the lower part of the end of the buckle.
[0019] In one solution of the present utility model, when the CPA module rotates along the first hinge to the released state, the positioning component slides out of the limiting groove, and the long strip component flips to the upper part of the end of the buckle; the long strip component is of a "冂" - shaped structure and is used to avoid the buckle during the flipping process of the CPA module.
[0020] In one solution of the present utility model, the second hinge is a long - row - type hinge, and the length of the second hinge is the same as the length of the TPA module;
[0021] And / or, the material of the second hinge is the same as that of the TPA module, and the thickness of the second hinge is less than the thickness of the TPA module.
[0022] The connector with an integrated TPA and CPA structure provided by the present utility model can achieve the following technical effects:
[0023] 1. The connector includes an integrally formed connector body, a CPA module, and a TPA module. The CPA module is rotationally connected through the first hinge, and the TPA module is rotationally connected through the second hinge. After the wire is assembled in place, directly rotating and buckling the TPA module can effectively fix the electrical terminal. And after the connector is assembled with the housing, rotating and buckling the CPA module can effectively fix the connector with the housing; in the process of preparing for assembly and distribution of the present utility model, the number of workpieces to be prepared is reduced, achieving more efficient material management; and during assembly, the process of identifying and assembling the CPA module and the TPA module is reduced, which can improve the assembly efficiency of the connector.
[0024] 2. By arranging a plurality of stop blocks corresponding to the wire - end accommodating holes on the TPA module, when the TPA module is rotated and buckled, the stop blocks sink into the riveting holes and abut against the electrical terminal, realizing the limitation of the wire in the wire - end accommodating hole. The stop block is set as a stepped structure. The first stepped section is used to avoid the wire during rotation to ensure that the TPA module can flip smoothly; the second stepped section is used to abut against the electrical terminal in the locked state and form a stop surface perpendicular to the central axis of the wire - end accommodating hole to prevent the electrical terminal from loosening or withdrawing.
[0025] 3. By setting an outwardly protruding reinforcing structure on the first surface, the buckle is positioned between the two first reinforcing ribs to enhance the structural strength of the connector. At the same time, a limiting groove is set on the connecting seat formed by the reinforcing structure. When the CPA module is rotated to the locked state, the positioning component slides into the limiting groove to achieve fixation. The elongated component abuts between the buckle and the first surface. The elastic movement path of the elongated component and the buckle interferes to prevent the buckle from being pressed down and displaced by external force, ensuring that the buckle can effectively fix the connector to the shell. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0027] Figure 1 A three-dimensional structural diagram of the present invention;
[0028] Figure 2 A three-dimensional structural diagram showing another aspect of the CPA module of this utility model;
[0029] Figure 3 A front view structural diagram of this utility model;
[0030] Figure 4 A three-dimensional structural diagram of the TPA module of this utility model;
[0031] Figure 5 express Figure 4 A magnified structural diagram of point A in the middle.
[0032] The annotations in the attached figures are explained as follows:
[0033] 1-Connector body; 11-First surface; 12-Second surface; 13-Wire end receiving hole; 14-Riveting hole; 15-First reinforcing rib; 16-Second reinforcing rib; 17-Connecting seat; 2-CPA module; 21-First hinge; 22-Limiting block; 23-Long strip component; 24-Positioning component; 25-; 3-TPA module; 31-Second hinge; 32-Stop block; 33-First step; 34-Second step; 35-First inclined surface; 36-Second inclined surface; 4-Snap fastener. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please refer to Figures 1-5 One embodiment of this utility model provides a connector with an integrated TPA and CPA structure, including an integrally formed connector body 1, a CPA module 2 and a TPA module 3;
[0036] The connector body 1 has a first surface 11 and a second surface 12; the connector body 1 is formed with a plurality of wire end receiving holes 13 along the longitudinal direction; the first surface 11 is provided with a buckle 4, the second surface 12 is provided with a riveting hole 14, and the riveting hole 14 extends through to the wire end receiving hole 13.
[0037] The CPA module 2 is hinged to the first surface 11 via the first hinge 21. The CPA module 2 includes a limiting block 22, which is connected to the first hinge 21. When the CPA module 2 rotates along the first hinge 21 to the locked state, the limiting block 22 is located between the buckle 4 and the first surface 11, which is used to keep the buckle 4 in the pop-up state.
[0038] The TPA module 3 is hinged to the second surface 12 via the second hinge 31. The TPA module 3 includes a stop block 32, which is disposed on the side of the TPA module 3 facing the second surface 12. When the TPA module 3 rotates along the second hinge 31 to the locked state, the stop block 32 passes through the riveting hole 14 and is inserted into the wire end receiving hole 13 to limit the wire in the wire end receiving hole 13.
[0039] Understandably, the connector with an integrated TPA and CPA structure in this embodiment has fewer parts and is very easy to assemble. In this embodiment, the CPA module 2 and TPA module 3 are integrally molded with the connector body 1. During installation and wiring, it is only necessary to insert the terminal part of the wire into the wire end receiving hole 13, and bend the TPA module 3 through the second hinge 31. The TPA module 3 is in a locked state, allowing the stop block 32 of the TPA module 3 to pass through the riveting hole 14 and into the wire end receiving hole 13. Under the action of the stop block 32, the TPA module 3 can ensure the connection between the wire terminal and the connector. Effective fixation eliminates the need for workers to remove and install the TPA module 3, simplifying the installation process. Furthermore, when the connector body 1 with the installed wires is fitted to the connector housing, the elasticity of the latch 4 allows it to naturally connect with the latch on the connector housing. Additionally, the CPA module 2 on the first surface 11, by bending the limiting block 22 with the first hinge 21, causes the limiting block 22 to flip and position itself between the latch 4 and the first surface 11, abutting against the lower surface of the latch 4. This prevents the latch 4 from being displaced by external force, ensuring that the latch 4 effectively fixes the connector to the connector housing.
[0040] Please refer to Figure 4 In one embodiment of the present invention, a plurality of riveting holes 14 are provided, and the plurality of riveting holes 14 are arranged parallel to each other in the transverse direction, and each riveting hole 14 corresponds to a single wire end receiving hole 13.
[0041] The stop block 32 includes a plurality of blocks, and the plurality of stop blocks 32 are respectively provided with the riveting holes 14.
[0042] Understandably, in this embodiment, several stop blocks 32 are arranged in parallel on a mounting plate. The mounting plate ensures that multiple stop blocks 32 are in the same installation state, for example, simultaneously engaging with the mounting holes into the riveting holes 14 or simultaneously separating from the riveting holes 14. Furthermore, the riveting holes 14 correspond uniquely to the wire end receiving holes 13, ensuring that the stop blocks 32 are inserted into the corresponding wire end receiving holes 13 through the riveting holes 14. The stop blocks 32 are engaged with the preset grooves on the wire end, thereby effectively fixing the wire installed in the wire end receiving holes 13.
[0043] Please refer to Figure 5 In one embodiment of the present invention, the stop block 32 is a stepped structure, the stepped structure includes a first stepped segment 33 and a second stepped segment 34. The first stepped segment 33 is disposed at the end of the stop block 32 near the second hinge 31, and the first stepped segment 33 is used to avoid the wire; the second stepped segment 34 is disposed at the end of the stop block 32 away from the second hinge 31.
[0044] Understandably, in this embodiment, the first step 33 is used to avoid the wire during rotation, ensuring that the TPA module 3 can be smoothly rotated; the second step 34 is used to abut against the terminal block in the locked state and form a stop surface perpendicular to the central axis of the wire end receiving hole 13, preventing the terminal block from loosening or coming out.
[0045] In one embodiment of the present invention, the first step segment 33 is connected to the second hinge 31 via a first inclined surface 35, and the second hinge 31 is connected to the first step segment 33 via a second inclined surface 36; the slope of the first inclined surface 35 is greater than the slope of the second inclined surface 36.
[0046] Please refer to Figure 5 In one embodiment of the present invention, a stop surface is provided on the side of the second step segment 34 away from the first step segment 33;
[0047] When the stop block 32 passes through the riveting hole 14 and enters the wire end receiving hole 13, the stop surface is perpendicular to the central axis of the wire end receiving hole 13.
[0048] Understandably, in this embodiment, the first inclined surface 35 transitions between the first stepped section 33 and the second hinge 31, ensuring that the second hinge 31 is the weakest part in the connection structure. When the TPA module 3 is bent under force, the second hinge 31 deforms first, causing the stop block 32 to flip and sink into the rivet hole 14. The second stepped section 34 abuts against the recess on the wire terminal. The function of the second inclined surface 36 is to transition between the first stepped section 33 and the second stepped section 34. At the same time, the second inclined surface 36 is used to enhance the structural strength of the second stepped section 34, so that the stop surface can withstand greater tensile force. When the wire is subjected to a large outward pulling force, the stop block 32 can still maintain the fixing effect on the wire terminal and will not easily loosen.
[0049] In one embodiment of the present invention, the first surface 11 is provided with an outwardly protruding reinforcing structure, the reinforcing structure including symmetrically arranged first reinforcing ribs 15 and second reinforcing ribs 16 perpendicular to the first reinforcing ribs 15, and the buckle 4 is located between the two first reinforcing ribs 15.
[0050] The two ends of the limiting block 22 are respectively connected to the first hinge 21. A connecting seat 17 is formed at the intersection of the first reinforcing rib 15 and the second reinforcing rib 16. The two ends of the first hinge 21 are respectively connected to the connecting seat 17 and the end of the limiting block 22.
[0051] Please refer to Figures 1-3, Understandably, in this embodiment, the reinforcing structure composed of the first reinforcing rib 15 and the second reinforcing rib 16 can increase the structural strength of the connector and prevent the connector from deforming when subjected to excessive tensile force; at the same time, the buckle 4 is located between the two first reinforcing ribs 15, and a connection seat 17 is formed through the intersection of the first reinforcing rib 15 and the second reinforcing rib 16, so as to form a first hinge 21 on the connection seat 17, and the first hinge 21 is used to set the CPA module 2 for enhancing the connection stability of the buckle 4.
[0052] Please refer to Figures 1-3 , In one embodiment of the present utility model, the limiting block 22 includes a long strip member 23 and a positioning member 24, the positioning member 24 is arranged on the joint surface of the long strip member 23 and the connection seat 17, a limiting groove corresponding to the positioning member 24 is arranged on the side surface of the connection seat 17, and the positioning member 24 is arranged at a position close to the end of the long strip member 23;
[0053] When the CPA module 2 rotates to the locked state, the positioning member 24 slides into the limiting groove, so that the long strip member 23 abuts against the lower part of the end of the buckle 4.
[0054] , Understandably, in this embodiment, based on the limiting groove arranged on the connection seat 17, when the CPA module 2 rotates to the locked state, the positioning member 24 therein slides into the limiting groove to achieve fixation, the long strip member 23 abuts between the buckle 4 and the first surface 11, and the elastic movement paths of the long strip member 23 and the buckle 4 interfere with each other, preventing the downward displacement of the buckle 4 caused by external force, and ensuring that the buckle 4 can effectively fix and connect the connector and the housing.
[0055] , In one embodiment of the present utility model, when the CPA module 2 rotates along the first hinge 21 to the release state, the positioning member 24 slides out of the limiting groove, and the long strip member 23 flips to the upper part of the end of the buckle 4; the long strip member 23 is of a "冂" - shaped structure and is used to avoid the buckle 4 during the flipping process of the CPA module 2.
[0056] , Understandably, in this embodiment, when the CPA module 2 rotates along the first hinge 21 to above the buckle 4, it is in the release state. In this state, by applying a downward force to the buckle 4, the connector body 1 can be separated from the connector housing; and when the CPA module 2 rotates along the first hinge 21 to below the buckle 4, it is in the locked state. In this state, the long strip member 23 abuts against the buckle 4 to make the buckle 4 engage with the connector housing, so as to fix the connector body 1 and the connector housing. Among them, the long strip member 23 is of a "冂" - shaped structure and is used to avoid the buckle 4 during the flipping process of the CPA module 2.
[0057] In one embodiment of this utility model, the material of the second hinge 31 is the same as that of the TPA module 3, and the thickness of the second hinge 31 is less than that of the TPA module 3.
[0058] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A connector with an integrated TPA and CPA structure, characterized in that, It includes an integrally molded connector body (1), a CPA module (2), and a TPA module (3); The connector body (1) has a first surface (11) and a second surface (12); the connector body (1) is formed longitudinally with a plurality of wire end receiving holes (13); the first surface (11) is provided with a buckle (4), the second surface (12) is provided with a riveting hole (14), and the riveting hole (14) extends through to the wire end receiving hole (13); The CPA module (2) is hinged to the first surface (11) via a first hinge (21). The CPA module (2) includes a limiting block (22), which is connected to the first hinge (21). When the CPA module (2) rotates along the first hinge (21) to the locked state, the limiting block (22) is located between the buckle (4) and the first surface (11). The TPA module (3) is hinged to the second surface (12) via a second hinge (31). The TPA module (3) includes a stop block (32), which is located on the side of the TPA module (3) facing the second surface (12). When the TPA module (3) rotates to the locked state along the second hinge (31), the stop block (32) passes through the riveting hole (14) and is inserted into the wire end receiving hole (13).
2. The connector with an integrated TPA and CPA structure as described in claim 1, characterized in that, The riveting hole (14) is provided in a plurality of ways, and the plurality of riveting holes (14) are arranged parallel to each other in the transverse direction, and the riveting hole (14) corresponds to the wire end receiving hole (13) in a single way; The stop block (32) includes a plurality of blocks, and the plurality of stop blocks (32) are provided corresponding to the riveting holes (14).
3. The connector with an integrated TPA and CPA structure as described in claim 1, characterized in that, The stop block (32) has a stepped structure, which includes a first stepped section (33) and a second stepped section (34). The first stepped section (33) is located at the end of the stop block (32) near the second hinge (31) and is used to avoid the wire. The second stepped section (34) is located at the end of the stop block (32) away from the second hinge (31).
4. The connector with an integrated TPA and CPA structure as described in claim 3, characterized in that, The first step segment (33) is connected to the second hinge (31) via a first inclined surface (35), and the second hinge (31) is connected to the first step segment (33) via a second inclined surface (36); the slope of the first inclined surface (35) is greater than the slope of the second inclined surface (36).
5. The connector with an integrated TPA and CPA structure as described in claim 3, characterized in that, A stop surface is provided on the side of the second step (34) away from the first step (33); When the stop block (32) passes through the riveting hole (14) and enters the wire end receiving hole (13), the stop surface is perpendicular to the central axis of the wire end receiving hole (13).
6. The connector with an integrated TPA and CPA structure as described in claim 1, characterized in that, The first surface (11) is provided with an outwardly protruding reinforcing structure, which includes symmetrically arranged first reinforcing ribs (15) and second reinforcing ribs (16) perpendicular to the first reinforcing ribs (15). The buckle (4) is located between the two first reinforcing ribs (15).
7. The connector with an integrated TPA and CPA structure as described in claim 6, characterized in that, Both ends of the limiting block (22) are respectively connected to the first hinge (21). A connecting seat (17) is formed at the intersection of the first reinforcing rib (15) and the second reinforcing rib (16). Both ends of the first hinge (21) are respectively connected to the connecting seat (17) and the end of the limiting block (22).
8. The connector with an integrated TPA and CPA structure as described in claim 7, characterized in that, The limiting block (22) includes a long strip component (23) and a positioning component (24). The positioning component (24) is arranged on the fitting surface of the long strip component (23) and the connecting seat (17). A limiting groove corresponding to the positioning component (24) is arranged on the side surface of the connecting seat (17). The positioning component (24) is arranged at a position close to the end of the long strip component (23); When the CPA module (2) rotates to the locked state, the positioning component (24) slides into the limiting groove, so that the long strip component (23) abuts against the lower part of the end of the buckle (4).
9. The connector with an integrated TPA and CPA structure as described in claim 8, characterized in that, When the CPA module (2) rotates along the first hinge (21) to the unlocked state, the positioning component (24) slides out of the limiting groove, and the long strip component (23) flips to the upper part of the end of the buckle (4). The long strip component (23) is of a "冂"-shaped structure and is used to avoid the buckle (4) during the flipping process of the CPA module (2).
10. The connector with an integrated TPA and CPA structure as described in any one of claims 1-9, characterized in that, The material of the second hinge (31) is the same as that of the TPA module (3), and the thickness of the second hinge (31) is less than the thickness of the TPA module (3).