A type of large and small current integrated board-to-board connector

Abstract

This utility model discloses a board-to-board connector with varying current ratings, relating to the field of connector technology. It includes an insulating body and a cover fitted onto the insulating body. The insulating body contains multiple rows of terminal holes, which are divided into standard terminal holes and large-size terminal holes. Standard terminal holes house standard current terminals, while large-size terminal holes house high-current terminals. This utility model integrates two types of terminal holes and corresponding terminals within the same insulating body, eliminating the need for separate connectors and simultaneously meeting the requirements for low-current signal transmission and high-current power supply, significantly improving functional integration. It effectively reduces the space occupied by the device, adapting to the miniaturization trend of electronic equipment; reduces assembly steps and the number of wiring harnesses, lowering assembly costs and failure risks, and improving equipment operational stability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a board-to-board connector with large and small current. Background Technology

[0002] In today's rapidly evolving era of integrated and multifunctional electronic devices, connectors, as core components for circuit conduction, signal transmission, and power supply, directly impact the overall reliability and integration of equipment through their performance and structural design. Whether in industrial control equipment, new energy vehicle power systems, or power modules for communication base stations, connectors are essential for multi-loop current transmission, and these loops often exhibit significant differences in current requirements—for example, control signal loops typically require only milliampere-level current transmission, while power supply loops need to handle tens of amperes or even higher currents.

[0003] Currently, the industry's common solution for addressing the aforementioned multi-current level transmission requirements is to configure separate low-current connectors and high-current connectors. Specifically, low-current connectors are used to connect control signal terminals, with terminal holes and structures adapted to low-current transmission requirements, featuring compact size and easy mating; high-current connectors are specifically designed for power circuit connections, with larger terminal hole sizes, internal terminals made of high-conductivity materials, and designed with a larger current-carrying cross-section to meet the heat dissipation and conductivity requirements when high currents pass through.

[0004] However, this "separate multi-connector setup" approach has several inherent drawbacks: First, assembling multiple connectors requires reserving independent installation space on the device housing or circuit board, leading to an increase in the overall size of the device, which contradicts the current trend of miniaturization and compactness in electronic devices. Second, separate connectors require individual mating operations, which not only increases assembly steps and labor costs but may also cause circuit failures due to incorrect mating sequence or poor contact. Third, the use of multiple connectors inevitably leads to an increase in the number of connecting wire harnesses, making the organization and fixing of the wire harnesses more difficult and prone to problems such as wire harness tangling and wear, reducing the stability of device operation. Fourth, the procurement cost of independent connectors and matching wire harnesses is high, significantly increasing the overall manufacturing cost of the device.

[0005] Therefore, developing a connector that can integrate terminals of different current levels, has a compact structure, and provides reliable connections has become a key direction for solving current technical pain points. Utility Model Content

[0006] To address the shortcomings of the prior art, this utility model provides a board-to-board connector with varying current ratings.

[0007] The technical solution adopted by the present utility model is as follows: a size-current integrated board-to-board connector, comprising an insulating body and a cover body covering the insulating body. A plurality of rows of terminal holes are provided in the insulating body. The terminal holes include standard terminal holes and large-size terminal holes. Standard current terminals are provided in the standard terminal holes, and large-current terminals are provided in the large-size terminal holes.

[0008] Further, the large-size terminal holes are located on the insulating body at both ends of the standard terminal holes.

[0009] Further, the current-carrying capacity of the large-current terminals is not less than 5A, and the current-carrying capacity of the standard current terminals is less than 5A.

[0010] Further, a sealing ring is also provided between the insulating body and the cover body. At least two convex rings are provided at intervals on the outer circle of the sealing ring.

[0011] Further, corresponding holes aligned with the large-size terminal holes and the standard terminal holes are provided on the sealing ring and the cover body.

[0012] Further, positioning clamping plates are provided at the left and right ends of the cover body, and cover buckling rings are provided on the front and rear sides of the cover body. Buckling steps adapted to the cover buckling rings are provided on the front and rear sides of the insulating body. A guiding inclined surface is provided on one side of the buckling steps where the cover body is located.

[0013] Further, a "C"-shaped frame is provided on the front side of the insulating body, and a connecting buckling ring is provided in the "C"-shaped frame.

[0014] Further, the connecting buckling ring includes a buckling ring main body, connecting pieces located on both sides of the buckling ring main body, and an operating part located at one end of the buckling ring main body. The connecting pieces are connected to the side plates on both sides of the "C"-shaped frame, and the buckling ring main body is suspended above the insulating body through the connecting pieces.

[0015] Further, a plurality of stepped steps are provided on the operating part.

[0016] The beneficial effects of the present utility model are as follows: 1. Realize integrated transmission of multiple current levels: By integrating standard terminal holes and large-size terminal holes in the insulating body, and respectively adapting standard current terminals and large-current terminals, it is possible to simultaneously meet the small-current transmission of the control signal circuit and the large-current supply demand of the power circuit without the need to additionally set up independent small-current connectors and large-current connectors, greatly improving the functional integration degree of the connector.

[0017] 2. Reduced device space occupation: Compared with the solution of setting up multiple connectors separately, this connector integrates terminals of different current levels into the same structure composed of an insulating body and a cover, eliminating the need to reserve multiple independent mounting positions. This effectively reduces the space occupied by the connector on the device housing or circuit board, adapting to the development trend of miniaturization and compactness of electronic devices.

[0018] 3. Reduced assembly difficulty and cost: Multiple circuits can be connected by simply mating a single integrated connector, reducing assembly steps and operations, and lowering labor costs; at the same time, it avoids the risk of failure caused by incorrect mating sequence of multiple connectors, and improves assembly efficiency and reliability.

[0019] 4. Optimize wiring harness management and equipment stability: The integrated design reduces the number of matching connection harnesses, simplifies the organization and fixing of harnesses, effectively avoids problems such as harness tangling and wear, reduces circuit abnormalities caused by harness failures, and improves the stability of equipment operation.

[0020] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is an exploded view of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the insulating body.

[0025] Figure 1-3 In the middle: 1. Insulating body; 2. Cover; 3. Standard terminal hole; 4. Large-size terminal hole; 5. Standard current terminal; 6. High current terminal; 7. Sealing ring; 8. Raised ring; 9. Corresponding hole; 10. Positioning clamp; 11. Cover buckle; 12. Buckling step; 13. Guide slope; 14. "U" shaped frame; 15. Connecting buckle; 16. Buckle body; 17. Connecting piece; 18. Operating part; 19. Step. Detailed Implementation

[0026] 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.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] This utility model provides a board-to-board connector for large and small current integrated circuits.

[0029] In this embodiment, refer to Figure 1-3 The large and small current integrated board-to-board connector includes an insulating body 1 and a cover 2 covering the insulating body 1. The insulating body 1 is provided with multiple rows of terminal holes, including standard terminal holes 3 and large-size terminal holes 4. The standard terminal holes are provided with standard current terminals 5, and the large-size terminal holes are provided with high-current terminals 6.

[0030] In the above technical solution, the multiple rows of terminal holes within the insulating body of this connector are divided into two categories: standard terminal holes and large-size terminal holes. The former is adapted to standard current terminals, while the latter is adapted to relatively large current terminals. The difference in terminal hole size enables precise assembly and positioning of terminals of different specifications. This overcomes the limitations of traditional single-specification connectors, integrating low-current and high-current transmission functions into a single structure, eliminating the need for separate connectors and significantly improving functional integration. Simultaneously, the enclosed structure of the insulating body and cover provides unified protection for terminals of different current levels, ensuring transmission safety.

[0031] Specifically, the large-size terminal hole is located on the insulating body at both ends of the standard terminal hole.

[0032] In this embodiment, the large-sized terminal holes are concentrated at both ends of the standard terminal holes in the terminal hole arrangement of the insulating body, forming a layout structure of "high current at both ends and low current in the middle". The layout at both ends can avoid heat concentration caused by the high current terminals and standard current terminals being too close together, reducing the impact of temperature on the stability of low current signal transmission; at the same time, it facilitates the wiring harness to be connected in zones according to current level, optimizing the rationality of internal wiring.

[0033] Specifically, the high-current terminal has a current carrying capacity of not less than 5A, while the standard current terminal has a current carrying capacity of less than 5A.

[0034] In this embodiment, a clear standard is provided for terminal selection and application scenario matching, ensuring that high-current terminals can stably adapt to high-intensity power supply requirements such as power circuits, and standard current terminals can adapt to low-current transmission scenarios such as control signals, avoiding overload faults caused by incorrect terminal selection and improving product application reliability.

[0035] Specifically, it also includes a sealing ring 7 disposed between the insulating body and the cover, wherein the outer ring of the sealing ring 7 is provided with at least two raised rings 8 spaced apart.

[0036] In this embodiment, multiple raised rings form a multi-layered sealing defense, which significantly improves the waterproof and dustproof performance of the connector compared to a single-seal structure. The spacing design of the raised rings can disperse the sealing pressure, enhance the durability of the sealing structure, and adapt to harsh working environments such as humid and dusty environments.

[0037] Specifically, the sealing ring and the cover are provided with corresponding holes 9 that align with the large-size terminal hole and the standard terminal hole.

[0038] In this embodiment, while ensuring sealing performance, interference between the sealing ring and the cover body on terminal assembly is avoided, achieving functional compatibility between "sealing protection" and "terminal connection"; the precise positioning of the corresponding holes can assist in terminal installation alignment and improve assembly accuracy.

[0039] Specifically, positioning clamps 10 are provided at the left and right ends of the cover, and cover buckles 11 are provided on the front and rear sides of the cover. The front and rear sides of the insulating body are provided with fastening steps 12 that are adapted to the cover buckles, and the fastening steps are provided with guide slopes 13 on one side of the cover.

[0040] In this embodiment, the positioning clamp and the cover buckle work together to achieve precise positioning and reliable fastening of the cover, avoiding assembly misalignment; the guide slope reduces the difficulty of aligning the cover buckle and the fastening step, improving assembly efficiency; the double fixing structure enhances the connection stability between the cover and the insulating body, preventing loosening caused by vibration.

[0041] Specifically, an "U"-shaped frame 14 is provided on the front side of the insulating body, and a connecting buckle 15 is provided inside the "U"-shaped frame 14.

[0042] In this embodiment, the "U"-shaped frame provides stable support for the connecting ring and also acts as a "protective cover" to protect the connecting ring and improve its service life. The connecting ring enables quick docking and fixing of the connector to external devices, simplifying the connector installation and disassembly process and improving the convenience of equipment maintenance.

[0043] Specifically, the connecting buckle includes a buckle body 16, connecting pieces 17 located on both sides of the buckle body, and an operating part 18 located on one end of the buckle body. The connecting pieces are connected to the side plates on both sides of the "U"-shaped frame, and the buckle body is suspended above the insulating body via the connecting pieces.

[0044] In this embodiment, the suspended design avoids direct contact between the buckle body and the insulating body, reducing wear on the insulating body during assembly or operation, and improving its resistance to deformation and service life.

[0045] Specifically, the operating unit is provided with multiple stepped steps 19.

[0046] In this embodiment, the stepped steps increase the surface friction of the operating part, preventing slippage during manual or tool operation and improving the stability of the locking and unlocking operation.

[0047] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A board-to-board connector for large and small current integrated circuits, comprising an insulating body and a cover fitted onto the insulating body, wherein the insulating body contains multiple rows of terminal holes, characterized in that: The terminal holes include standard terminal holes and large-size terminal holes. A standard current terminal is arranged in the standard terminal hole, and a large current terminal is arranged in the large-size terminal hole.

2. The large and small current integrated board-to-board connector according to claim 1, characterized in that: The large-size terminal holes are located on the insulating body at both ends of the standard terminal holes.

3. The large and small current integrated board-to-board connector according to claim 1, characterized in that: The current-carrying capacity of the large current terminal is not less than 5A, and the current-carrying capacity of the standard current terminal is less than 5A.

4. The large and small current integrated board-to-board connector according to claim 1, characterized in that: It further includes a sealing ring arranged between the insulating body and the cover body. At least two convex rings are arranged at intervals on the outer ring of the sealing ring.

5. The large and small current integrated board-to-board connector according to claim 4, characterized in that: Corresponding holes aligned with the large-size terminal holes and the standard terminal holes are arranged on the sealing ring and the cover body.

6. The large and small current integrated board-to-board connector according to claim 1, characterized in that: Positioning clamping plates are arranged at the left and right ends of the cover body, and cover buckle rings are arranged on the front and rear sides of the cover body. Clamping steps adapted to the cover buckle rings are arranged on the front and rear sides of the insulating body. A guiding inclined surface is arranged on one side of the clamping step where the cover body is located.

7. The large and small current integrated board-to-board connector according to claim 1, characterized in that: A "C"-shaped frame is arranged on the front side of the insulating body, and a connecting buckle ring is arranged in the "C"-shaped frame.

8. The large and small current integrated board-to-board connector according to claim 7, characterized in that: The connecting buckle ring includes a buckle ring body, connecting pieces located on both sides of the buckle ring body, and an operating part located at one end of the buckle ring body. The connecting pieces are connected to the side plates on both sides of the "C"-shaped frame, and the buckle ring body is suspended above the insulating body through the connecting pieces.

9. The large and small current integrated board-to-board connector according to claim 8, characterized in that: A plurality of stepped steps are arranged on the operating part.

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