Plug connector and vehicle-mounted SSD system

Abstract

The utility model discloses a plug connector and a vehicle-mounted SSD system, and relates to the technical field of vehicle-mounted SSD connection, the plug connector comprises a conductive terminal, an overmolding composite unit, an insulating inner shell and an insulating outer shell, the overmolding composite unit is integrated with a primary fixing feature for locking the position of the conductive terminal, and the insulating outer shell is integrated with a secondary fixing feature for locking the position of the conductive terminal. The insulating outer shell and the insulating inner shell are each provided with a secondary fixing feature used for forming a secondary TPA fixing mechanism with the SSD. According to the utility model, the conductive terminals and the plastic substrate are combined into an integrated structure by adopting an injection molding process, the conductive terminals are fixed by integrating a primary TPA fixing mechanism, and rigid locking of the plug connector and the SSD is realized through a secondary TPA fixing mechanism, so that the problems that the conductive terminals are loosened, abraded or invalid when the existing SSD connector is applied to a vehicle-mounted working condition, and the service life of the SSD connector is prolonged are solved. And the technical problems of insufficient stability, insufficient structural strength, reduced durability after repeated plugging and unplugging, incapability of meeting the requirements, complex installation and high cost are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive solid-state drive connection technology, specifically to a plug connector and an automotive SSD system. Background Technology

[0002] With the rapid development of automotive technology, the demand for high-performance, high-durability, and high-reliability storage solutions for in-vehicle systems has increased significantly. Solid-state drives (SSDs) are gradually being widely used in automotive applications due to their advantages such as high speed, shock resistance, and compact form factor.

[0003] In-vehicle systems typically use plug connectors and socket connectors to achieve electrical connections between SSDs and electronic systems. However, existing SSD connectors, in particular, rely on soldering or friction contact, leading to the following technical problems when applied to in-vehicle systems:

[0004] 1. Unable to meet the stringent environmental and mechanical requirements of automotive systems, such as long-term exposure to vibration, thermal cycling, humidity and mechanical stress, the conductive terminals are prone to loosening, wear or failure due to long-term use, thereby affecting data integrity and shortening the lifespan of SSDs in automotive environments.

[0005] 2. Common problems include insufficient contact stability of conductive terminals, decreased durability after repeated insertion and removal, and insufficient structural strength to withstand harsh automotive environments.

[0006] 3. The assembly and maintenance process of existing SSD connectors is often not user-friendly, which increases installation complexity and production costs.

[0007] Therefore, improvements to existing SSD connectors are needed. Utility Model Content

[0008] One of the objectives of this utility model is to provide a plug connector that uses an overmolding injection molding process to integrate the conductive terminals with the plastic matrix into an integrated structure, and integrates a main TPA fixing mechanism to fix the conductive terminals. This solves the technical problems of loose, worn or failed conductive terminals, insufficient stability, insufficient structural strength, and decreased durability after repeated insertion and removal when existing SSD connectors are applied to automotive applications.

[0009] The second objective of this utility model is to provide an in-vehicle SSD system. This system achieves rigid locking between the plug connector and the SSD through a secondary TPA fixing mechanism, thereby forming an overall structure that is resistant to vibration and thermal stress. This solves the technical problems that existing SSD connectors cannot meet the stringent environmental and mechanical requirements of automotive systems, as well as the technical problems of complex installation and high production costs.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] In a first aspect, this utility model provides a plug connector, comprising:

[0012] Conductive terminals for electrical connection to the SSD;

[0013] An overmolded composite unit is overmolded onto the conductive terminal to form an integrated structure. The overmolded composite unit has a main fixing feature that locks the position of the conductive terminal.

[0014] An insulating inner shell is configured to house and fix the overmolded composite unit, wherein the overmolded composite unit and the insulating inner shell form a main-level TPA fixing mechanism through a main-level fixing feature;

[0015] An insulating outer shell is configured to encapsulate the insulating inner shell, wherein both the insulating outer shell and the insulating inner shell are provided with secondary fixing features for forming a secondary TPA fixing mechanism with the SSD.

[0016] The main stage fixing features include snap-locks, ribs, or grooves. The main stage TPA fixing mechanism locks the position of the conductive terminals by engaging the main stage fixing features with the corresponding structure of the insulating inner shell.

[0017] The overmolded composite unit uses injection molding to encapsulate plastic material in the middle of the conductive terminal. Both ends of the conductive terminal are exposed outside the overmolded composite unit. The main fixing features are symmetrically arranged on the overmolded composite unit.

[0018] The conductive terminals include an upper row of terminals and a lower row of terminals spaced apart from each other. Each of the upper row of terminals and the lower row of terminals includes several signal terminals and several ground terminals. A shielding sheet and conductive adhesive are fixed between the upper row of terminals and the lower row of terminals through the encapsulation molding composite unit. The ground terminals are electrically connected to the shielding sheet through the conductive adhesive.

[0019] The secondary fixing features include locking holes and locking strips. The locking holes are respectively opened on both sides of the insulating outer shell and on both sides of the insulating inner shell, and the locking holes on both sides of the insulating outer shell correspond one-to-one with the locking holes on both sides of the insulating inner shell. The SSD has a locking groove. The secondary TPA fixing mechanism achieves rigid locking of the insulating outer shell, the insulating inner shell and the SSD by simultaneously inserting the locking strip into the locking groove and the locking hole.

[0020] The insulating housing is provided with a locking structure for connection with the socket connector.

[0021] The overmolded composite unit is sealed and encapsulated with the insulating inner shell.

[0022] The insulating inner shell is provided with a positioning structure for mating with the socket connector.

[0023] The positioning structure includes an asymmetric foolproof key.

[0024] Both the insulating outer shell and the insulating inner shell are made of materials with high temperature resistance, vibration absorption and thermal conductivity.

[0025] Secondly, this utility model provides an in-vehicle SSD system, including a plug connector and an SSD, wherein the plug connector includes:

[0026] Conductive terminals, electrically connected to the SSD;

[0027] An overmolded composite unit is overmolded onto the conductive terminal to form an integrated structure. The overmolded composite unit has a main fixing feature that locks the position of the conductive terminal.

[0028] An insulating inner shell is configured to house and fix the overmolded composite unit, wherein the overmolded composite unit and the insulating inner shell form a main-level TPA fixing mechanism through a main-level fixing feature;

[0029] An insulating outer shell is configured to enclose the insulating inner shell;

[0030] Both the plug connector and the SSD are provided with secondary fixing features. The plug connector and the SSD are rigidly locked together by forming a secondary TPA fixing mechanism through the secondary fixing features.

[0031] The main stage fixing features include snap-locks, ribs, or grooves. The main stage TPA fixing mechanism locks the position of the conductive terminals by engaging the main stage fixing features with the corresponding structure of the insulating inner shell.

[0032] The overmolded composite unit uses injection molding to encapsulate plastic material in the middle of the conductive terminal. Both ends of the conductive terminal are exposed outside the overmolded composite unit. The main fixing features are symmetrically arranged on the overmolded composite unit.

[0033] The conductive terminals include an upper row of terminals and a lower row of terminals spaced apart from each other. Each of the upper row of terminals and the lower row of terminals includes several signal terminals and several ground terminals. A shielding sheet and conductive adhesive are fixed between the upper row of terminals and the lower row of terminals through the encapsulation molding composite unit. The ground terminals are electrically connected to the shielding sheet through the conductive adhesive.

[0034] The secondary fixing features include locking holes, locking strips, and locking slots. The locking holes are respectively opened on both sides of the insulating outer shell and on both sides of the insulating inner shell, and the locking holes on both sides of the insulating outer shell correspond one-to-one with the locking holes on both sides of the insulating inner shell. The locking slots are opened on the SSD and located between the locking holes. The secondary TPA fixing mechanism achieves rigid locking between the plug connector and the SSD by simultaneously inserting the locking strips into the locking slots and locking holes.

[0035] The conductive terminals are connected to the SSD by welding, crimping, or spring contact connection.

[0036] The insulating housing is provided with a locking structure for connection with the socket connector.

[0037] The overmolded composite unit is sealed and encapsulated with the insulating inner shell.

[0038] The insulating inner shell is provided with a positioning structure for mating with the socket connector.

[0039] The positioning structure includes an asymmetric foolproof key.

[0040] The advantages of using this utility model are:

[0041] 1. The plug connector and vehicle-mounted SSD system provided by this utility model adopts an overmolding injection molding process to integrate the conductive terminals with the plastic substrate into an integrated structure. The main stage fixing feature integrated on the overmolded composite unit constitutes a main stage TPA fixing mechanism to effectively fix the conductive terminals to the insulating inner shell. Compared with existing technologies, this not only effectively prevents the conductive terminals from loosening, wearing, or failing, but also improves the structural strength and stability of the product, and its durability does not decrease even with repeated insertion and removal.

[0042] Furthermore, this utility model achieves rigid fixation between the plug connector and the SSD through a secondary TPA fixing mechanism, which can form an overall structure that is resistant to vibration and thermal stress. Each component can also form a modular structure. This not only effectively meets the stringent environmental and mechanical requirements of automotive systems, but also simplifies the product installation process and reduces production costs, significantly improving the mechanical strength, electrical reliability, and ease of maintenance of the SSD in the automotive environment.

[0043] 2. This utility model integrates the overmolded composite unit and the conductive terminal into an integrated structure through injection molding. This not only helps to improve the stability and reliability of the conductive terminal when it is electrically connected to the SSD and the socket connector, but also makes the conductive terminal a replaceable pre-assembled module, which is beneficial for modular adjustment or replacement of the conductive terminal without disassembling the SSD.

[0044] 3. This utility model seals the encapsulated composite unit with the insulating inner shell, which helps the plug connector achieve an IP6K9K or higher dustproof and waterproof rating.

[0045] 4. This utility model uses an asymmetrical anti-foolproof key to help ensure the polarity matching of the plug connector and the socket connector.

[0046] 5. This utility model uses materials with high temperature resistance, vibration absorption and thermal conductivity to prepare the insulating outer shell and insulating inner shell, which is beneficial to improve the high temperature resistance, vibration resistance and heat dissipation performance of the plug connector, so that the plug connector can effectively meet the harsh environmental and mechanical requirements of automotive systems.

[0047] 6. This utility model innovatively transforms standard SSDs into automotive-grade storage solutions that meet IP6K9K protection standards, withstand extreme temperatures and vibrations, and are field-maintainable, thus satisfying the stringent requirements of next-generation automotive systems for high reliability and long lifespan of SSDs.

[0048] 7. This utility model supports the modification of existing SSDs or integration into new designs, and meets the standards for vibration resistance, thermal cycling, and protection levels of automotive SSDs. Attached Figure Description

[0049] Figure 1 This is a three-dimensional structural diagram of a plug connector;

[0050] Figure 2 This is a schematic diagram of the assembly structure of the plug connector;

[0051] Figure 3 This is a three-dimensional structural diagram of the insulating shell;

[0052] Figure 4 for Figure 2 Enlarged schematic diagram of the conductive terminal in the middle;

[0053] Figure 5 A 3D structural diagram of an in-vehicle SSD system;

[0054] Figure 6 This is a schematic diagram of the assembly structure of an in-vehicle SSD system.

[0055] The markings in the diagram are as follows: 1. SSD, 2. Conductive terminal, 3. Overmolded composite unit, 4. Primary mounting feature, 5. Insulating inner shell, 6. Insulating outer shell, 7. Secondary mounting feature, 8. Upper row of terminals, 9. Lower row of terminals, 10. Shielding sheet, 11. Conductive adhesive, 12. Locking structure, 13. Locking hole, 14. Locking strip, 15. Locking groove. Detailed Implementation

[0056] Example 1

[0057] like Figures 1-3 As shown, this embodiment discloses a plug connector, which includes:

[0058] Conductive terminal 2, which is used for electrical connection with SSD1 and socket connector respectively.

[0059] The overmolded composite unit 3 covers the conductive terminal 2 and forms an integrated structure with the conductive terminal 2. The overmolded composite unit 3 integrates a main fixing feature 4 for locking the position of the conductive terminal 2, so that the conductive terminal 2 can be configured as a replaceable pre-assembled module, which facilitates modular adjustment or replacement of the conductive terminal 2 without disassembling the SSD1.

[0060] The insulating inner shell 5, which is generally square in shape, is configured to accommodate and fix the overmolded composite unit 3. The overmolded composite unit 3 and the insulating inner shell 5 form a primary TPA fixing mechanism via a primary fixing feature 4. The insulating inner shell 5 and the overmolded composite unit 3 are fixed together through this primary TPA fixing mechanism. It should be noted that the overmolded composite unit 3 can be inserted into the insulating inner shell 5 from one end and fixed therein. After fixing, the overmolded composite unit 3 and the insulating inner shell 5 form a sealed package, thereby achieving an IP6K9K or higher dust and water resistance rating.

[0061] An insulating outer shell 6, which is generally square in shape, is configured to enclose an insulating inner shell 5. Both the insulating outer shell 6 and the insulating inner shell 5 are provided with secondary fixing features 7 for forming a secondary TPA fixing mechanism with the SSD1. In actual installation, the insulating inner shell 5 can be inserted into the insulating inner shell 6 from one end, and the plug connector and the SSD1 can be fixed together by the secondary TPA fixing mechanism.

[0062] like Figure 4 As shown, in this embodiment, the overmolding composite unit 3 uses injection molding to cover the middle part of the conductive terminal 2 with plastic material. The overall length of the plastic material is slightly greater than the overall width of the conductive terminal 2. After overmolding, both ends of the conductive terminal 2 are exposed outside the overmolding composite unit 3, so that the conductive terminal 2 can form a stable and reliable connection with the SSD1 and the socket connector respectively.

[0063] like Figure 4 As shown, the conductive terminal 2 further includes an upper row of terminals 8 and a lower row of terminals 9 spaced apart from each other. Both the upper row of terminals 8 and the lower row of terminals 9 are covered and fixed by an encapsulation molding composite unit 3. Both the upper row of terminals 8 and the lower row of terminals 9 include several signal terminals and several grounding terminals. Figure 4The longer terminal on the left side of the encapsulated composite unit 3 is the grounding terminal, and the rest are signal terminals. A shielding sheet 10 and conductive adhesive 11 are fixed between the upper row of terminals 8 and the lower row of terminals 9 via the encapsulated composite unit 3. Both sides of the conductive adhesive 11 are bonded to the shielding sheet 10 and the grounding terminals, respectively. Each grounding terminal is electrically connected to the shielding sheet 10 via the conductive adhesive 11, thus forming a shielded circuit to ensure stable and reliable transmission of the SSD1 signal.

[0064] like Figures 1-2 As shown, in this embodiment, the insulating outer shell 6 is provided with a locking structure 12 for connection with the socket connector. This locking structure 12 can be implemented using conventional techniques in the art to ensure a stable and reliable connection between the plug connector and the socket connector. Additionally, the insulating inner shell 5 is provided with a positioning structure for mating with the socket connector. This positioning structure includes an asymmetric key to ensure polarity mating with the socket connector. In actual installation, by inserting the plug connector into the socket connector and then using the locking structure 12 to lock and the asymmetric key to perform polarity mating, a stable and reliable connection between the two can be ensured.

[0065] In this embodiment, both the insulating outer shell 6 and the insulating inner shell 5 are made of materials with high temperature resistance, vibration absorption and thermal conductivity, so that the plug connector has high temperature resistance, vibration absorption and heat dissipation characteristics, thereby adapting to the harsh environmental and mechanical requirements in various vehicle working conditions.

[0066] It should be noted that this embodiment does not limit the primary fixing feature 4 and the secondary fixing feature 7, as long as they can form the corresponding TPA fixing mechanism and achieve effective fixing of the corresponding structural components.

[0067] In this embodiment, plastic material is first used to encapsulate the middle of the conductive terminal 2 using injection molding, forming an integrated structure. The conductive terminal 2 is then inserted into the insulating inner shell 5, and the primary TPA fixing mechanism reliably secures the encapsulated composite unit 3 to the insulating inner shell 5. The insulating inner shell 5 is then inserted into the insulating inner shell 5 to form a complete plug connector. Finally, the secondary TPA fixing mechanism rigidly locks the insulating outer shell 6, the insulating inner shell 5, and the SSD1. The plug connector provided in this embodiment can form a modular structure, which not only simplifies installation and reduces costs but also effectively enhances the mechanical strength, electrical reliability, and compliance with automotive environmental standards of the SSD1.

[0068] In addition, the applicant also conducted a plug-in / plug-out test on this embodiment. The plug connector provided in this embodiment and SSD1 were used to form a field-maintainable unit. After the plug-in / plug-out test, it was found that the performance could not be degraded after at least 10,000 plug-in / plug-out cycles. This proves that the plug connector can not only effectively prevent the conductive terminal 2 from loosening, wearing or failing, but also improve the structural strength and stability of the product.

[0069] Example 2

[0070] Based on Example 1, this example further optimizes the main-level fixed feature 4.

[0071] like Figure 2 , 4 As shown, the main stage fixing feature 4 is symmetrically arranged on the overmolded composite unit 3. This main stage fixing feature 4 specifically includes a snap-lock, rib, or groove. Correspondingly, the insulating inner shell 5 is equipped with an engagement structure adapted to the snap-lock, rib, or groove. After the overmolded composite unit 3 and the conductive terminal 2 are inserted into the insulating inner shell 5, the main stage TPA fixing mechanism locks the position of the conductive terminal 2 by engaging the snap-lock, rib, or groove with the corresponding structure in the insulating inner shell 5. This facilitates disassembly and assembly while effectively preventing the conductive terminal 2 from loosening.

[0072] It should be noted that the aforementioned main-level fixing feature 4 is preferably disposed on the upper and lower sides of the overcoating composite unit 3, but it can also be disposed on the left and right ends of the overcoating composite unit 3 as needed.

[0073] Example 3

[0074] Based on Embodiment 1 or 2, this embodiment further optimizes the secondary fixed feature 7.

[0075] like Figures 1-3 As shown, the secondary fixing feature 7 includes locking holes 13 and locking strips 14. The locking holes 13 are respectively located on both sides of the insulating outer shell 6 and on both sides of the insulating inner shell 5, with each locking hole 13 on one side of the insulating outer shell 6 corresponding to one on the two sides of the insulating inner shell 5. This secondary fixing feature 7 requires a locking groove 15 pre-formed on the SSD1 to match the locking strip 14 for fixing. Based on this, the secondary TPA fixing mechanism achieves rigid locking of the insulating outer shell 6, the insulating inner shell 5, and the SSD1 by simultaneously inserting the locking strip 14 into both the locking groove 15 and the locking hole 13.

[0076] To further improve the rigid locking effect between the plug connector and the SSD1, it is preferable that the insulating outer shell 6 has two locking holes 13 on each side, and the locking holes 13 on both sides are symmetrical. Correspondingly, the insulating inner shell 5 has two locking holes 13 on each side, and the locking holes 13 on both sides are symmetrical; the SSD1 also has two locking slots 15, which are respectively formed on the upper and lower surfaces of the SSD1; the locking strips 14 also have two pieces, which are used to be inserted into the corresponding locking holes 13 and locking slots 15 respectively.

[0077] This embodiment, through the cooperation of the primary TPA fixing mechanism and the secondary TPA fixing mechanism, ensures that the SSD1 meets the vehicle standards for vibration resistance, thermal cycling, and protection level when applied to vehicle operating conditions.

[0078] Example 4

[0079] like Figures 5-6 As shown, this embodiment discloses an in-vehicle SSD system, including a plug connector and an SSD1. The plug connector includes:

[0080] Conductive terminal 2, which is used for electrical connection with SSD1 and socket connector respectively.

[0081] The overmolded composite unit 3 covers the conductive terminal 2 and forms an integrated structure with the conductive terminal 2. The overmolded composite unit 3 integrates a main fixing feature 4 for locking the position of the conductive terminal 2, so that the conductive terminal 2 can be configured as a replaceable pre-assembled module, which facilitates modular adjustment or replacement of the conductive terminal 2 without disassembling the SSD1.

[0082] The insulating inner shell 5, which is generally square in shape, is configured to accommodate and fix the overmolded composite unit 3. The overmolded composite unit 3 and the insulating inner shell 5 form a primary TPA fixing mechanism via a primary fixing feature 4. The insulating inner shell 5 and the overmolded composite unit 3 are fixed together through this primary TPA fixing mechanism. It should be noted that the overmolded composite unit 3 can be inserted into the insulating inner shell 5 from one end and fixed therein. After fixing, the overmolded composite unit 3 and the insulating inner shell 5 form a sealed package, thereby achieving an IP6K9K or higher dust and water resistance rating.

[0083] An insulating outer shell 6, which is generally square in shape, is configured to enclose an insulating inner shell 5, which can be inserted into the insulating inner shell 5 from one end of the insulating outer shell 6.

[0084] In addition, both the plug connector and the SSD1 are equipped with secondary fixing features 7. The plug connector and the SSD1 are connected by secondary fixing features 7 to form a secondary TPA fixing mechanism to achieve rigid locking between the plug connector and the SSD1.

[0085] like Figure 4 As shown, in this embodiment, the overmolding composite unit 3 uses injection molding to cover the middle part of the conductive terminal 2 with plastic material. The overall length of the plastic material is slightly greater than the overall width of the conductive terminal 2. After overmolding, both ends of the conductive terminal 2 are exposed outside the overmolding composite unit 3, so that the conductive terminal 2 can form a stable and reliable connection with the SSD1 and the socket connector respectively.

[0086] like Figure 4 As shown, the conductive terminal 2 further includes an upper row of terminals 8 and a lower row of terminals 9 spaced apart from each other. Both the upper row of terminals 8 and the lower row of terminals 9 are covered and fixed by an encapsulation molding composite unit 3. Both the upper row of terminals 8 and the lower row of terminals 9 include several signal terminals and several grounding terminals. Figure 4 The longer terminal on the left side of the encapsulated composite unit 3 is the grounding terminal, and the rest are signal terminals. A shielding sheet 10 and conductive adhesive 11 are fixed between the upper row of terminals 8 and the lower row of terminals 9 via the encapsulated composite unit 3. Both sides of the conductive adhesive 11 are bonded to the shielding sheet 10 and the grounding terminals, respectively. Each grounding terminal is electrically connected to the shielding sheet 10 via the conductive adhesive 11, thus forming a shielded circuit to ensure stable and reliable transmission of the SSD1 signal. Additionally, Figure 4 The terminal on the right side of the overmolded composite unit 3 is used for electrical connection with SSD1. The specific connection method can be welding, crimping or other known connection structures. Under the premise that the plug connector can maintain a reliable connection with SSD1, it can effectively prevent the conductive terminal 2 from loosening, wearing or failing.

[0087] like Figure 6 As shown, in this embodiment, the insulating outer shell 6 is provided with a locking structure 12 for connection with the socket connector. This locking structure 12 can be implemented using conventional techniques in the art to ensure a stable and reliable connection between the plug connector and the socket connector. Additionally, the insulating inner shell 5 is provided with a positioning structure for mating with the socket connector. This positioning structure includes an asymmetric key to ensure polarity mating with the socket connector. In actual installation, by inserting the plug connector into the socket connector and then using the locking structure 12 to lock and the asymmetric key to perform polarity mating, a stable and reliable connection between the two can be ensured.

[0088] In this embodiment, both the insulating outer shell 6 and the insulating inner shell 5 are made of materials with high temperature resistance, vibration absorption and thermal conductivity, so that the plug connector has high temperature resistance, vibration absorption and heat dissipation characteristics, thereby adapting to the harsh environmental and mechanical requirements in various vehicle working conditions.

[0089] In this embodiment, plastic material is first used to encapsulate the middle of the conductive terminal 2 using injection molding, forming an integrated structure. The conductive terminal 2 is then inserted into the insulating inner shell 5, and the primary TPA fixing mechanism reliably secures the encapsulated composite unit 3 to the insulating inner shell 5. The insulating inner shell 5 is then inserted into the primary TPA fixing mechanism to form a complete plug connector. The end of the SSD1 is then inserted into the plug connector, and the conductive terminal 2 is electrically connected to the SSD1. Finally, the secondary TPA fixing mechanism rigidly locks the insulating outer shell 6, the insulating inner shell 5, and the SSD1. The vehicle-mounted SSD system provided in this embodiment can form a modular structure, which not only simplifies installation and reduces costs but also effectively enhances the mechanical strength, electrical reliability, and compliance with vehicle environmental standards of the SSD1.

[0090] Example 5

[0091] Based on Example 4, this example further optimizes the main-level fixed feature 4.

[0092] like Figure 4 , 6 As shown, the main stage fixing feature 4 is symmetrically arranged on the overmolded composite unit 3. This main stage fixing feature 4 specifically includes a snap-lock, rib, or groove. Correspondingly, the insulating inner shell 5 is equipped with an engagement structure adapted to the snap-lock, rib, or groove. After the overmolded composite unit 3 and the conductive terminal 2 are inserted into the insulating inner shell 5, the main stage TPA fixing mechanism locks the position of the conductive terminal 2 by engaging the snap-lock, rib, or groove with the corresponding structure in the insulating inner shell 5. This facilitates disassembly and assembly while effectively preventing the conductive terminal 2 from loosening.

[0093] It should be noted that the aforementioned main-level fixing feature 4 is preferably disposed on the upper and lower sides of the overcoating composite unit 3, but it can also be disposed on the left and right ends of the overcoating composite unit 3 as needed.

[0094] Example 6

[0095] Based on Embodiment 4 or 5, this embodiment further optimizes the secondary fixed feature 7.

[0096] like Figures 1-3 As shown, the secondary fixing feature 7 includes locking holes 13, locking bars 14, and locking grooves 15. The locking holes 13 are respectively formed on both sides of the insulating outer shell 6 and on both sides of the insulating inner shell 5, with each locking hole 13 on one side of the insulating outer shell 6 corresponding to one on the two sides of the insulating inner shell 5. The locking grooves 15 are formed on the SSD1 and located between the locking holes 13. The secondary TPA fixing mechanism achieves rigid locking between the plug connector and the SSD1 by simultaneously inserting the locking bars 14 into both the locking grooves 15 and the locking holes 13.

[0097] To further improve the rigid locking effect between the plug connector and the SSD1, it is preferable that the insulating outer shell 6 has two locking holes 13 on each side, and the locking holes 13 on both sides are symmetrical. Correspondingly, the insulating inner shell 5 has two locking holes 13 on each side, and the locking holes 13 on both sides are symmetrical; the SSD1 also has two locking slots 15, which are respectively formed on the upper and lower surfaces of the SSD1; the locking strips 14 also have two pieces, which are used to be inserted into the corresponding locking holes 13 and locking slots 15 respectively.

[0098] This embodiment achieves rigid locking between the plug connector and SSD1 through the cooperation of the primary TPA fixing mechanism and the secondary TPA fixing mechanism. When SSD1 is applied to automotive conditions, it can ensure that it meets the automotive standards for vibration resistance, thermal cycling, and protection levels.

[0099] The above description is only a specific embodiment of the present utility model. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in all methods or processes disclosed may be combined in any way except for mutually exclusive features and / or steps.

Claims

1. A plug connector, characterized in that, include: Conductive terminal (2) for electrical connection with SSD (1); The overmolded composite unit (3) is overmolded onto the conductive terminal (2) and forms an integrated structure. The overmolded composite unit (3) integrates a main fixing feature (4) for locking the position of the conductive terminal (2). An insulating inner shell (5) is configured to accommodate and fix the overmolded composite unit (3), wherein the overmolded composite unit (3) and the insulating inner shell (5) constitute a main stage TPA fixing mechanism through a main stage fixing feature (4); An insulating outer shell (6) is configured to encapsulate the insulating inner shell (5), wherein both the insulating outer shell (6) and the insulating inner shell (5) are provided with secondary fixing features (7) for forming a secondary TPA fixing mechanism with the SSD (1).

2. The plug connector according to claim 1, characterized in that: The main stage fixing feature (4) includes a snap lock, ribs or grooves. The main stage TPA fixing mechanism locks the position of the conductive terminal (2) by engaging the main stage fixing feature (4) with the corresponding structure of the insulating inner shell (5).

3. The plug connector according to claim 1, characterized in that: The overmolded composite unit (3) uses injection molding to cover the middle part of the conductive terminal (2) with plastic material. Both ends of the conductive terminal (2) are exposed outside the overmolded composite unit (3). The main fixing feature (4) is symmetrically arranged on the overmolded composite unit (3).

4. The plug connector according to claim 1, characterized in that: The conductive terminal (2) includes an upper row of terminals (8) and a lower row of terminals (9) spaced apart from each other. The upper row of terminals (8) and the lower row of terminals (9) each include a number of signal terminals and a number of ground terminals. The upper row of terminals (8) and the lower row of terminals (9) are fixed with a shielding sheet (10) and conductive adhesive (11) through the encapsulation molding composite unit (3). The ground terminals are electrically connected to the shielding sheet (10) through the conductive adhesive (11).

5. The plug connector according to any one of claims 1-4, characterized in that: The secondary fixing feature (7) includes a locking hole (13) and a locking strip (14). The locking holes (13) are respectively opened on both sides of the insulating outer shell (6) and on both sides of the insulating inner shell (5). The locking holes (13) on both sides of the insulating outer shell (6) correspond one-to-one with the locking holes (13) on both sides of the insulating inner shell (5). The SSD (1) is provided with a locking groove (15). The secondary TPA fixing mechanism achieves rigid locking of the insulating outer shell (6), the insulating inner shell (5) and the SSD (1) by simultaneously inserting the locking strip (14) into the locking groove (15) and the locking hole (13).

6. The plug connector according to claim 1, characterized in that: The overmolded composite unit (3) is sealed and encapsulated with the insulating inner shell (5).

7. The plug connector according to claim 1, characterized in that: The insulating inner shell (5) is provided with a positioning structure for mating with the socket connector; the positioning structure includes an asymmetric key.

8. An in-vehicle SSD system, comprising a plug connector and an SSD (1), characterized in that: The plug connector includes: The conductive terminal (2) is electrically connected to the SSD (1); The overmolded composite unit (3) is overmolded onto the conductive terminal (2) and forms an integrated structure. The overmolded composite unit (3) integrates a main fixing feature (4) for locking the position of the conductive terminal (2). An insulating inner shell (5) is configured to accommodate and fix the overmolded composite unit (3), wherein the overmolded composite unit (3) and the insulating inner shell (5) constitute a main stage TPA fixing mechanism through a main stage fixing feature (4); An insulating outer shell (6) is configured to enclose the insulating inner shell (5); Both the plug connector and the SSD (1) are provided with secondary fixing features (7). The plug connector and the SSD (1) are connected by a secondary TPA fixing mechanism through the secondary fixing features (7) to achieve rigid locking between the plug connector and the SSD (1).

9. The vehicle-mounted SSD system according to claim 8, characterized in that: The secondary fixing feature (7) includes a locking hole (13), a locking strip (14), and a locking groove (15). The locking holes (13) are respectively opened on both sides of the insulating outer shell (6) and on both sides of the insulating inner shell (5), and the locking holes (13) on both sides of the insulating outer shell (6) correspond one-to-one with the locking holes (13) on both sides of the insulating inner shell (5). The locking groove (15) is opened on the SSD (1) and located between the locking holes (13). The secondary TPA fixing mechanism achieves rigid locking between the plug connector and the SSD (1) by simultaneously inserting the locking strip (14) into the locking groove (15) and the locking hole (13).

10. The vehicle-mounted SSD system according to claim 8, characterized in that: The conductive terminal (2) is connected to the SSD (1) by welding, pressing or spring connection.

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