29 pin power connector

Abstract

The utility model discloses a 29PIN power connector belongs to electronic connector technical field. The 29PIN power connector includes casing, terminal module, split positioning board and fixing piece, and the casing is sequentially provided with the plug -in portion and the fixed base along the plug -in direction, and the plug -in portion is seted up with the plug -in cavity, and one end of terminal module is inserted in the fixed base and stretches into the plug -in cavity, and the other end of terminal module protrudes in fixed base, and fixing piece is installed in fixed base to fix terminal module in fixed base, and terminal module includes five groups of electricity terminal group, and split positioning board is set up in the side of fixed base towards the plug -in cavity, and includes vertical partition and longitudinal partition, and longitudinal partition is located between second electricity terminal group and third electricity terminal group, and vertical partition is set up above longitudinal partition. The utility model realizes terminal firm, plug -in accurate, strong adaptability, can guarantee the stable transmission of vehicle-mounted circuit, satisfies the rigorous use demand of vehicle-mounted electronic system.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a 29-pin power connector. Background Technology

[0002] As a core connecting component of electronic devices, connectors' primary function is to establish transmission channels between disconnected circuits, enabling the stable flow of current and signals to achieve the circuit's preset functions. In the field of automotive electronics, power connectors are crucial hubs connecting vehicle power supplies to various electrical devices (such as navigation, radar, and in-vehicle entertainment systems), and must simultaneously meet stringent requirements for high stability, high adaptability, and vibration resistance.

[0003] Existing vehicle power connectors suffer from limited terminal block specifications, making it difficult to adapt to the power requirements of different power devices in vehicle systems. Furthermore, their insertion positioning accuracy is insufficient, relying solely on a single guide structure for connection. This makes them prone to circuit failures due to misalignment, and they are susceptible to detachment due to vibration after insertion, posing a safety hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, a robust, reliable, and easy-to-assemble 29-pin power connector is provided for power transmission and signal interaction between vehicle-mounted devices, ensuring the stable operation of vehicle-mounted circuits.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A 29-pin power connector includes a housing, a terminal module, a segmented positioning plate, a plug-in positioning mechanism, and a fixing component;

[0007] The housing is provided with a plug-in part and a fixing seat in sequence along the plug-in direction. The plug-in part has a plug-in cavity. The terminal module is plugged into the fixing seat, with one end extending into the plug-in cavity and the other end protruding from the fixing seat. The fixing member is installed on the fixing seat to fix the terminal module to the fixing seat.

[0008] The terminal module includes a first power terminal group, a second power terminal group, a third power terminal group, a fourth power terminal group, and a fifth power terminal group. The dividing and positioning plate is disposed on the side of the fixing base facing the insertion cavity, and includes a vertical dividing plate and a longitudinal dividing plate. The longitudinal dividing plate is located between the second power terminal group and the third power terminal group, and the vertical dividing plate is disposed above the longitudinal dividing plate. It is used to divide and position the terminal module to avoid interference between different terminal groups, and at the same time, to guide and position it during insertion.

[0009] Furthermore, the 29PIN power connector also includes a mating positioning mechanism, which includes a first positioning strip, a second positioning strip, a first positioning groove, and a second positioning groove. The first positioning strip, the second positioning strip, the first positioning groove, and the second positioning groove are all disposed on the outer side wall of the housing to improve the mating accuracy between the connector and external devices.

[0010] Furthermore, the first positioning strip and the first positioning groove are respectively disposed on the left and right outer walls of the housing along the vertical direction to form a symmetrical guiding structure, which initially ensures the accuracy of the insertion direction; in order to further improve the positioning accuracy, the second positioning strip is disposed on the outer wall of the housing along the vertical direction of the first positioning strip, and the second positioning groove is disposed on the outer wall of the housing along the vertical direction of the first positioning groove. The double positioning strip and the positioning groove cooperate to effectively avoid misalignment during insertion.

[0011] Furthermore, connecting arms are provided on both sides of the fixing base, and each connecting arm has an assembly slot at its lower end facing the fixing base. The fixing component has corresponding snap-fit ​​parts on both sides, and the snap-fit ​​parts engage with the assembly slots to achieve initial fixing of the fixing component and the fixing base.

[0012] The lower end of the connecting arm is also provided with an assembly groove, and positioning blocks are provided on both sides of the fixing member. The positioning blocks are inserted into the assembly groove to enhance the tightness of the connection between the fixing member and the fixing seat.

[0013] The bottom of the mounting groove is also provided with a positioning pin, and the fixing component has a corresponding positioning pin hole. The positioning pin is inserted into the positioning pin hole to achieve precise positioning and fit. Through the triple fixing structure, the fixing component and the fixing seat are finally tightly connected, effectively resisting the loosening of the fixing component caused by vehicle vibration and ensuring the stability of the terminal module.

[0014] Furthermore, a third positioning strip is provided on the connecting arm on one side of the fixed base in the vertical direction. The third positioning strip is located on the side of the connecting arm away from the assembly slot. The third positioning strip can cooperate with the external mounting structure during the overall installation of the connector to improve the installation positioning accuracy of the connector.

[0015] Furthermore, the first, second, and third power terminal groups each include seven conductive terminals arranged along the arrangement direction, and the fourth and fifth power terminal groups each include four conductive terminals arranged along the arrangement direction. This differentiated terminal quantity design significantly improves connector compatibility. The multi-terminal group design meets the multi-circuit power requirements of the vehicle system.

[0016] Furthermore, the fixing base is provided with plug strips corresponding one-to-one with the first power terminal group, the second power terminal group, the third power terminal group, the fourth power terminal group and the fifth power terminal group. Each plug strip has a terminal insertion hole corresponding to the number of conductive terminals. The terminal insertion hole passes through the fixing base and is connected to the plug cavity, providing a stable assembly channel for the conductive terminals. The fixing member is provided with a terminal slot for inserting the conductive terminals, which is used to limit and fix the conductive terminals.

[0017] One end of each of the conductive terminals is inserted into the terminal socket and extends into the insertion cavity to mate with the external connector. The other end of each of the conductive terminals is inserted into and protrudes from the terminal slot to connect with the external circuit, ensuring that both ends of the conductive terminals are effectively fixed and preventing terminal misalignment.

[0018] Furthermore, each of the conductive terminals has an L-shaped bending structure, including a horizontal end and a vertical end; the horizontal end is inserted into the terminal socket and extends into the insertion cavity, and the vertical end is inserted into and extends out of the terminal slot. The L-shaped structure optimizes the spatial layout of the conductive terminals in the housing and reduces the space occupied inside the housing.

[0019] Furthermore, the longitudinal partition plate is located between the horizontal ends of the second and third electrical terminal groups, separating adjacent terminal groups to avoid signal interference; the vertical partition plate is disposed above the longitudinal partition plate, and a limiting groove is provided on the end of the vertical partition plate facing the insertion direction. The limiting groove can cooperate with external connectors to further improve the insertion positioning accuracy and connection stability.

[0020] Furthermore, the 29PIN power connector also includes a plug-in locking mechanism, which includes a guide key and a latch. The guide key is disposed on the side wall and top wall of the plug-in cavity along the axial direction of the plug-in cavity to provide precise guidance during the plug-in process and ensure smooth plug-in. The latch is disposed on the top wall of the plug-in cavity and can lock with the external plug-in component after plug-in is completed to prevent it from falling off.

[0021] Furthermore, the insertion locking mechanism also includes a guide groove on the top wall of the insertion cavity, with guide keys on the top wall distributed on both sides of the latch, and the guide keys and the latch disposed within the guide groove. The symmetrically distributed guide keys ensure even force distribution during insertion, preventing insertion misalignment caused by unilateral force, while improving insertion smoothness and stability.

[0022] Furthermore, the bottom surface of the housing is provided with multiple positioning posts, which can be precisely aligned with the installation position of the vehicle equipment during connector installation to ensure accurate overall installation of the connector and avoid affecting subsequent insertion and use due to installation deviation.

[0023] The beneficial effects of this utility model are:

[0024] The modular design of the housing, terminal modules, and fasteners allows for easy positioning and fixation of the terminals via connector strips and slots on the fasteners. The assembly process is clear, facilitating automated production and improving assembly efficiency. Five differentiated terminal sets (with varying numbers of conductive terminals) can accommodate the power requirements of different power devices in the vehicle system, offering strong versatility.

[0025] The fastener and the mounting base form a firm and tight connection through the triple cooperation of "assembly slot + snap-fit ​​part", "assembly groove + positioning block" and "positioning pin + positioning pin hole", which effectively resists the risk of loosening caused by vehicle vibration and ensures the stability of the terminal module.

[0026] The double positioning strips / grooves of the insertion positioning mechanism, the guide keys and latches of the insertion locking mechanism, and the positioning posts of the insertion part ensure accurate insertion and reliable connection from insertion guidance, locking and fixing to overall installation and positioning, reducing the difficulty of installation and debugging.

[0027] In addition, the L-shaped conductive terminal design optimizes the housing space layout, making it easy to install in the space-constrained vehicle environment. The overall structure is compact and highly practical, and can fully meet the stringent usage requirements of vehicle electronic systems. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the 29PIN power connector of this utility model;

[0029] Figure 2 This is a three-dimensional structural diagram of the 29PIN power connector of this utility model from another angle;

[0030] Figure 3 This is an exploded structural diagram of the 29PIN power connector of this utility model;

[0031] Figure 4 This is an exploded structural diagram of the 29PIN power connector of this utility model from another angle;

[0032] Figure 5 This is a three-dimensional structural diagram of the shell in this utility model;

[0033] Figure label:

[0034] 10-Shell;

[0035] 11-Plug-in part; 111-Plug-in cavity; 112-Positioning post; 113-First positioning bar; 114-First positioning groove; 115-Second positioning bar; 116-Second positioning groove; 117-Guide key; 118-Lock; 119-Guide groove;

[0036] 12-Fixed base; 121-Connecting arm; 122-Assembly slot; 123-Assembly groove; 124-Positioning pin; 125-Third positioning strip; 126-Plug-in strip; 127-Terminal socket;

[0037] 20 - Terminal module; 21 - First power terminal group; 22 - Second power terminal group; 23 - Third power terminal group; 24 - Fourth power terminal group; 25 - Fifth power terminal group; 26 - Conductive terminal; 261 - Horizontal end; 262 - Vertical end;

[0038] 30 - Dividing and positioning plate; 31 - Vertical dividing plate; 311 - Limiting groove; 32 - Longitudinal dividing plate;

[0039] 50-Fixing component; 51-Snap-fit ​​part; 52-Positioning block; 53-Positioning pin hole; 54-Terminal slot. Detailed Implementation

[0040] 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.

[0041] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] like Figures 1-5As shown, this utility model embodiment provides a 29PIN power connector, including a housing 10, a terminal module 20, a segmentation positioning plate 30, a plug-in positioning mechanism, and a fixing member 50.

[0044] The housing 10 is typically made of insulating plastic material and is integrally injection molded. Along the insertion direction, the housing 10 has a insertion part 11 and a fixing base 12 arranged sequentially. The insertion part 11 has an insertion cavity 111, and the lower surface of the housing 10 has two positioning posts 112 for precise alignment of the connector assembly with the vehicle mounting station. The terminal module 20 is inserted into the fixing base 12, with one end extending into the insertion cavity 111 and the other end protruding from the fixing base 12. The fixing member 50 is mounted on the fixing base 12 to secure the terminal module 20 to the fixing base 12.

[0045] Connecting arms 121 are provided on both sides of the fixed base 12. The lower end of the two connecting arms 121 facing the fixed base 12 is provided with an assembly slot 122. The two sides of the fixing member 50 are provided with a snap-fit ​​part 51 corresponding to the assembly slot 122 of the connecting arm 121. The snap-fit ​​part 51 snaps into the assembly slot 122.

[0046] The lower end of the connecting arm 121 is also provided with an assembly groove 123. The fastener 50 is provided with positioning blocks 52 on both sides corresponding to the assembly groove 123 of the connecting arm 121. The positioning blocks 52 are inserted into the assembly groove 123.

[0047] The bottom of the mounting groove 123 is provided with a positioning pin 124, and the fixing part 50 is provided with a positioning pin hole 53 corresponding to the positioning pin 124 of the connecting arm 121. The positioning pin 124 is inserted into the positioning pin hole 53.

[0048] The connecting arm 121 on one side of the fixed base 12 is also provided with a third positioning strip 125 in the vertical direction. The third positioning strip 125 is located on the side of the connecting arm 121 away from the assembly slot 122, which helps to improve the overall installation accuracy of the connector.

[0049] The terminal module 20 includes a first power terminal group 21, a second power terminal group 22, a third power terminal group 23, a fourth power terminal group 24, and a fifth power terminal group 25. Each of the first, second, and third power terminal groups 21 and 22 contains seven conductive terminals 26 arranged in the same direction, while each of the fourth and fifth power terminal groups 24 and 25 contains four conductive terminals 26 arranged in the same direction. The mounting base 12 also has five sets of connector strips 126, each corresponding to one of the five power terminal groups in the terminal module 20. Each connector strip 126 has terminal insertion holes 127 corresponding to the number of conductive terminals 26 in the corresponding power terminal group. The terminal insertion holes 127 pass through the mounting base 12 and communicate with the insertion cavity 111, providing an assembly channel for the conductive terminals 26.

[0050] Each conductive terminal 26 has an L-shaped bent structure, including a horizontal end 261 and a vertical end 262. The horizontal end 261 is inserted into the terminal socket 127 of the connector strip 126 and extends into the connector cavity 111. The fixing member 50 is also provided with terminal slots 54 corresponding to the number of all conductive terminals 26, and the vertical end 262 is inserted into and protrudes from the terminal slots 54 of the fixing member 50. The above structure achieves a tight fit between the fixing member 50 and the fixing base 12, and firmly fixes the terminal module 20.

[0051] The dividing positioning plate 30 includes a vertical dividing plate 31 and a longitudinal dividing plate 32, both of which are disposed within the fixing base 12 along the insertion direction. The longitudinal dividing plate 32 is located between the second power terminal group 22 and the third power terminal group 23, separating adjacent terminal groups; the vertical dividing plate 31 is disposed above the longitudinal dividing plate 32, and a limiting groove 311 is provided at one end of the vertical dividing plate 31 facing the insertion direction. The limiting groove 311 can cooperate with external plug-in components to improve the insertion positioning accuracy and connection stability, while avoiding interference between different terminal groups.

[0052] The insertion positioning mechanism includes a first positioning strip 113, a first positioning groove 114, a second positioning strip 115, and a second positioning groove 116. The first positioning strip 113 is vertically disposed on the left outer wall of the housing 10, and the first positioning groove 114 is vertically disposed on the right outer wall of the housing 10. The second positioning strip 115 is vertically disposed on the left outer wall of the housing 10 along the first positioning strip 113, and the second positioning groove 116 is vertically disposed on the right outer wall of the housing 10 along the first positioning groove 114, forming a double-guided positioning and foolproof structure to ensure accurate insertion.

[0053] This 29-pin power connector also includes a mating locking mechanism, which includes a guide key 117, a latch 118, and a guide groove 119. The guide key 117 is axially disposed on the left and top walls of the mating cavity 111. The latch 118 and guide groove 119 are disposed on the top wall of the mating cavity 111. The guide keys 117 on the top wall are distributed on both sides of the latch 118, ensuring even mating force. The guide keys 117 and latch 118 on the top wall are located within the guide groove 119. When the connector is mated with an external device, the guide key 117 and guide groove 119 prevent misalignment and provide precise guidance. After mating, the latch 118 locks with the external device to prevent detachment.

[0054] The assembly process of the 29PIN power connector of this utility model is as follows: Insert the horizontal ends 261 of each conductive terminal 26 of the terminal module 20 into the terminal socket 127 of the fixing base 12, so that the horizontal ends 261 extend into the insertion cavity 111; then, snap the positioning block 52 of the fixing member 50 into the assembly groove 123 of the connecting arm 121, and at the same time, snap the snap part 51 into the assembly slot 122, and insert the positioning pin 124 into the positioning pin hole 53 to complete the assembly of the fixing member 50 and the fixing base 12. At this time, the vertical ends 262 of the conductive terminals 26 are inserted into and out of the terminal slot 54 of the fixing member 50 to complete the assembly.

[0055] The 29PIN power connector of this utility model has a scientifically designed structure. Through multiple fixing, precise positioning and effective separation, it significantly improves connection stability, insertion accuracy and anti-interference ability. It has strong adaptability and can meet the long-term stable operation requirements of vehicle electronic systems.

[0056] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A 29-pin power connector, characterized in that: Includes housing, terminal module, segmentation and positioning plate, and fasteners; The housing is provided with a plug-in part and a fixing seat in sequence along the plug-in direction. The plug-in part has a plug-in cavity. One end of the terminal module is inserted into the fixing seat and extends into the plug-in cavity. The other end of the terminal module protrudes from the fixing seat. The fixing member is installed on the fixing seat to fix the terminal module to the fixing seat. The terminal module includes a first power terminal group, a second power terminal group, a third power terminal group, a fourth power terminal group, and a fifth power terminal group. The dividing positioning plate is disposed on the side of the fixing base facing the insertion cavity. The dividing positioning plate includes a vertical dividing plate and a longitudinal dividing plate. The longitudinal dividing plate is located between the second power terminal group and the third power terminal group, and the vertical dividing plate is disposed above the longitudinal dividing plate.

2. The 29-pin power connector according to claim 1, characterized in that: It also includes a plug-in positioning mechanism, which includes a first positioning strip, a second positioning strip, a first positioning groove, and a second positioning groove. The first positioning strip and the first positioning groove are respectively disposed on the left and right outer side walls of the housing in the vertical direction. The second positioning strip is disposed on the outer side wall of the housing along the vertical direction of the first positioning strip; The second positioning groove is disposed on the outer side wall of the housing along the vertical direction of the first positioning groove.

3. The 29-pin power connector according to claim 1, characterized in that: The fixing base is provided with connecting arms on both sides, and each connecting arm has an assembly slot at its lower end facing the fixing base. The fixing component has corresponding snap-fit ​​parts on both sides, and the snap-fit ​​parts engage with the assembly slot. The lower end of the connecting arm is also provided with an assembly groove, and positioning blocks are provided on both sides of the fixing member, and the positioning blocks are engaged in the assembly groove. The bottom of the assembly groove is also provided with a positioning pin, and the fixing component is provided with a corresponding positioning pin hole, and the positioning pin is inserted into the positioning pin hole.

4. The 29-pin power connector according to claim 3, characterized in that: The connecting arm on one side of the fixed base is also provided with a third positioning strip in the vertical direction. The third positioning strip is located on the side of the connecting arm away from the assembly slot.

5. The 29-pin power connector according to claim 1, characterized in that: The first, second, and third power terminal groups each include seven conductive terminals arranged along the arrangement direction, and the fourth and fifth power terminal groups each include four conductive terminals arranged along the arrangement direction. The vertical partition plate has a limiting groove at the end facing the insertion direction.

6. The 29-pin power connector according to claim 5, characterized in that: The fixing base is provided with plug strips that correspond one-to-one with the first power terminal group, the second power terminal group, the third power terminal group, the fourth power terminal group and the fifth power terminal group. Each plug strip is provided with a terminal insertion hole corresponding to the number of conductive terminals. The terminal insertion hole passes through the fixing base and is connected to the plug cavity. The fixing member is provided with a terminal slot for inserting the conductive terminals. One end of each of the conductive terminals is inserted into the terminal socket and extends into the insertion cavity, and the other end of each of the conductive terminals is inserted into and protrudes from the terminal slot.

7. The 29-pin power connector according to claim 6, characterized in that: Each of the conductive terminals has an L-shaped bent structure, including a horizontal end and a vertical end. The horizontal end is inserted into the terminal socket and extends into the insertion cavity, and the vertical end is inserted into and extends out of the terminal slot.

8. The 29-pin power connector according to claim 1, characterized in that: It also includes a plug-in locking mechanism, which includes a guide key and a latch. The guide key is disposed on the side wall and top wall of the plug-in cavity along the axial direction of the plug-in cavity, and the latch is disposed on the top wall of the plug-in cavity.

9. The 29-pin power connector according to claim 8, characterized in that: The insertion locking mechanism further includes a guide groove disposed on the top wall of the insertion cavity, and guide keys on the top wall are distributed on both sides of the latch. The guide keys and the latch on the top wall are disposed in the guide groove.

10. The 29-pin power connector according to claim 1, characterized in that: The bottom surface of the housing is provided with multiple positioning posts.

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