Electrical connection devices and electronic equipment

Abstract

This utility model discloses an electrical connection device and an electronic device, relating to the field of electrical connector technology. The electrical connection device includes a first motherboard, a second motherboard, a mating terminal assembly, and a connecting plate. The second motherboard is spaced apart on one side of the first motherboard. The mating terminal assembly is installed on the side of the first motherboard facing the second motherboard and is electrically connected to the first motherboard, with a reserved installation gap between the mating terminal assembly and the second motherboard. The connecting plate is installed between the second motherboard and the mating terminal assembly, and the thickness of the connecting plate is adapted to the thickness of the installation gap. The second motherboard and the mating terminal assembly are electrically connected through the connecting plate.

Description

Technical Field

[0001] This utility model relates to the field of electronic connector technology, and in particular to an electrical connection device and electronic device. Background Technology

[0002] In the assembly of modern electronic devices (such as communication equipment, computers, and industrial control systems), reliable electrical interconnection between multiple printed circuit boards (PCBs) is crucial. Currently, such interconnections are typically achieved through electrical connectors, such as backplane connectors, stacked connectors, or mezzanine connectors. These connectors are mounted on the two PCBs that need to be interconnected, and signal and power transmission is achieved through mating.

[0003] Since the connector needs to be physically placed between two circuit boards, its height (i.e., the thickness of the connector body) must be strictly matched with the spacing between the two circuit boards. If the spacing between the circuit boards varies due to differences in equipment (such as heat dissipation structure, component layout or housing size), connectors of different heights need to be developed, which is costly and not conducive to automated production. Utility Model Content

[0004] The main purpose of this invention is to provide an electrical connection device and electronic device that aims to solve the problem of needing to use connectors of different thicknesses due to the different spacing between multiple circuit boards.

[0005] The problem.

[0006] To achieve the above objectives, the present invention provides an electrical connection device, which includes:

[0007] First motherboard;

[0008] The second motherboard is disposed on one side of the first motherboard at a distance;

[0009] A terminal assembly is mounted on the side of the first motherboard facing the second motherboard and is electrically connected to the first motherboard, with a pre-reserved mounting gap between the terminal assembly and the second motherboard; and

[0010] A connecting plate is installed between the second main board and the docking terminal assembly. The thickness of the connecting plate is adapted to the thickness of the mounting gap. The second main board and the docking terminal assembly are electrically connected through the connecting plate.

[0011] This invention also proposes an electronic device, which includes the electrical connection device described above. Attached Figure Description

[0012] 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.

[0013] Figure 1 A schematic diagram of an embodiment of the electrical connection device provided by this utility model;

[0014] Figure 2 Exploded view of an embodiment of the electrical connection device provided by this utility model;

[0015] Figure 3 A schematic diagram of another embodiment of the electrical connection device provided by this utility model;

[0016] Figure 4 A schematic diagram of the structure of the flat connecting plate in another embodiment of the electrical connection device provided by this utility model;

[0017] Figure 5 A schematic diagram of the inclined connecting plate in another embodiment of the electrical connection device provided by this utility model;

[0018] Figure 6 A schematic diagram of another embodiment of the electrical connection device provided by this utility model;

[0019] Figure 7 Exploded view of another embodiment of the electrical connection device provided by this utility model;

[0020] Figure 8 A partial structural schematic diagram of another embodiment of the electrical connection device provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Electrical connection device; 1. First main board; 2. Second main board; 3. Terminal assembly; 31. First mating end; 32. Second mating end; 4. Connecting plate; 40. Mounting surface; 41. Cable tray; 5. Lower shell; 6. Upper shell; 7. Bracket; 8. Sealing ring; 9. Electrical connection port.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] 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 specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Since the connector needs to be physically placed between two circuit boards, its height (i.e., the thickness of the connector body) must be strictly matched with the spacing between the two circuit boards. If the spacing between the circuit boards varies due to differences in equipment (such as heat dissipation structure, component layout or housing size), connectors of different heights need to be developed, which is costly and not conducive to automated production.

[0028] This utility model proposes an electrical connection device.

[0029] Please see Figure 1 and Figure 3 In one embodiment of this utility model, the electrical connection device 100 includes:

[0030] First motherboard 1;

[0031] The second motherboard 2 is disposed on one side of the first motherboard 1 at an interval;

[0032] The terminal assembly 3 is installed on the side of the first motherboard 1 facing the second motherboard 2 and is electrically connected to the first motherboard 1, with a reserved installation gap between the terminal assembly 3 and the second motherboard 2; and

[0033] The connecting plate 4 is installed between the second main board 2 and the docking terminal assembly 3. The thickness of the connecting plate 4 is adapted to the thickness of the installation gap. The second main board 2 and the docking terminal assembly 3 are electrically connected through the connecting plate 4.

[0034] The technical solution of this utility model involves reserving a certain installation gap between the docking terminal assembly 3 and the second motherboard 2 after installing the docking terminal assembly 3 on the first motherboard 1. Then, a connecting plate 4 with a thickness adapted to the installation gap is selected to achieve the connection between the docking terminal assembly 3 and the second motherboard 2. In this way, regardless of whether the gap between the first motherboard 1 and the second motherboard 2 is large or small, only the connecting plate 4 of the corresponding thickness needs to be replaced to achieve a stable installation and reliable electrical connection between the second motherboard 2 and the docking terminal assembly 3. There is no need to find or customize docking terminal assemblies 3 of a specific thickness, which greatly improves the adaptability of the device to different electronic equipment application scenarios.

[0035] Specifically, the first motherboard 1 and the second motherboard 2 can be any two circuit boards in an electronic system that require electrical connection, and they come in various types and application scenarios in different electronic devices. For example, in a computer case, the motherboard serves as the first motherboard 1, while the circuit boards of expansion cards or storage devices such as graphics cards and hard drives serve as the second motherboard 2, achieving data transmission and power supply through the electrical connection device 100. In a smart home system, the motherboard of the central controller serves as the first motherboard 1, connected to the circuit boards of various peripheral devices such as sensors and actuators (the second motherboard 2), enabling intelligent monitoring and control of the home environment.

[0036] The terminal assembly 3 can adopt various structures, such as spring-loaded, pin-type, and clip-type. The spring-loaded terminal assembly 3 consists of a flexible metal sheet, one end of which is electrically connected to the first main board 1, while the other end is free. When the connecting plate 4 is inserted, the spring deforms elastically, forming a tight contact with the connecting plate 4 to achieve electrical connection. The pin-type terminal assembly 3 consists of several pins, one end of which is soldered or plugged into the first main board 1, and the other end faces perpendicularly towards the second main board 2. The connecting plate 4 has corresponding sockets that match the pins, and electrical connection is achieved through the cooperation of the pins and sockets. The clip-type terminal assembly 3 utilizes the elastic clamping force of the clip to hold the connecting plate 4 between the terminal assembly 3 and the second main board 2, ensuring the reliability of the electrical connection.

[0037] The connecting plate 4 can be a commonly used PCB board or FPC board. Its shape and thickness can be adjusted according to the actual installation environment to compensate for the gap between the mating terminal assembly 3 and the second main board 2. Wires can be soldered onto the connecting plate 4 to enable electrical conduction between the mating terminal assembly 3 and the second main board 2. The connecting plate 4 can also achieve electrical connection between the second main board 2 and the mating terminal assembly 3 through Pogo Pins.

[0038] In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The connecting plate 4 has a mounting surface 40 for mounting the mating terminal assembly 3. The mounting surface 40 can be flat or inclined. The mounting surface 40 of the connecting plate 4 can be chosen to be either flat or inclined, and the inclination angle of the inclined surface is not limited, to meet the needs of special installation spaces and arbitrary installation angles. For example, when the first main board 1 and the second main board 2 are not placed parallel, there will be a certain inclination angle between the mating terminal assembly 3 and the second main board 2. This inclination space requires a specially shaped connecting plate 4 to achieve electrical connection, suitable for various product installation scenarios. Specifically, when using a flat mounting surface 40, the mating terminal assembly 3 can adopt a socket-type structure, with sockets on its surface that match the pins on the connecting plate 4. Reinforcing ribs are provided around the sockets to enhance the stability of the connection. When using an inclined mounting surface 40, the mating terminal assembly 3 can be a wedge-shaped plug type, with its wedge-shaped surface adapted to the inclined surface of the connecting plate 4. Electrical connection is achieved through the cooperation of the wedge-shaped plug and the wedge-shaped groove on the connecting plate 4, while the self-locking function of the wedge structure improves the reliability of the connection.

[0039] In this embodiment of the invention, the connecting plate 4 is a flexible circuit board. The flexible circuit board can be folded, bent, and compressed, easily adapting to various complex shapes and confined spaces. It should be noted that the flexible circuit board and the second motherboard 2 are connected by a crimping method. Furthermore, the conductive terminals on the flexible circuit board can be in the shape of gold fingers, and the mating terminal assembly 3 can be configured as a comb-shaped slot structure adapted to the shape of the gold fingers on the flexible circuit board. By pressing the gold fingers into the comb-shaped slot using a crimping tool, the keyboard circuit and the motherboard are electrically connected. This method is not only simple to operate but also able to withstand a certain degree of mechanical vibration and insertion / removal force.

[0040] In this embodiment of the invention, the connecting plate 4 is provided with a predetermined number of circuit traces, which electrically connect the second motherboard 2 and the docking terminal assembly 3. By setting multiple wires, multiple circuit traces are installed on the connecting plate 4 through soldering, crimping, or plugging, which can meet the complex electrical connection requirements of multiple circuits and be used to transmit various signals, including power signals, data signals, and audio signals. The circuit traces can be flexibly set according to the specific layout of the second motherboard 2 and the docking terminal assembly 3, such as straight traces, curved traces, branch traces, etc., so as to better adapt to the internal spatial structure and circuit layout of different electronic devices. In addition, integrating multiple circuit traces on a single connecting plate 4 can effectively reduce the number and complexity of connecting components, making the internal connection of electronic devices simpler and more compact, and realizing multi-pin connections in small spaces.

[0041] In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The connecting plate 4 is provided with a wire guide groove 41, in which the circuit wires are placed, and the wire guide groove 41 extends from the side of the connecting plate 4 to the mounting surface 40 of the connecting plate 4. The shape and size of the wire guide groove 41 should be set according to factors such as the number and diameter of the circuit wires and the thickness of the connecting plate 4. For example, it can be a cuboid, semicircular, or trapezoidal shape. In addition, the shape of the wire guide groove 41 also needs to be related to the type of circuit wires. For example, a curved wire guide groove 41 is required for round wires, and a cuboid groove is required for flat wires. It should be noted that extending the wire guide groove 41 from the side of the connecting plate 4 to the mounting surface 40 connected to the docking terminal assembly 3 ensures that both ends of the wires can be pulled to the second main plate 2 and the docking terminal assembly 3 respectively, so as to achieve effective electrical connection.

[0042] In the embodiments of this utility model, please refer to Figure 2 The terminal assembly 3 includes:

[0043] The first mating end 31 is installed on the side of the first motherboard 1 facing the second motherboard 2 and is electrically connected to the first motherboard 1; and

[0044] The second docking end 32 is installed between the first docking end 31 and the connecting plate 4, and both the first docking end 31 and the connecting plate 4 are electrically connected to the second docking end 32.

[0045] Specifically, the first mating end 31 can adopt a pin-type, socket-type, or snap-fit ​​structure to electrically connect with the corresponding interface on the first motherboard 1. The pin-type structure consists of several metal pins, one end of which is soldered or plugged into a pad or socket on the first motherboard 1, while the other end is exposed for connection with the second mating end 32. The socket-type structure has multiple sockets to receive the pins on the second mating end 32 for electrical connection. The snap-fit ​​structure uses a snap-fit ​​mechanism to engage with a slot or snap-fit ​​on the first motherboard 1 for mechanical fixation and electrical connection. The second mating end 32, as an intermediate connecting component between the first mating end 31 and the connecting plate 4, needs to ensure compatibility with both. Typically, the second mating end 32 will have sockets or pins matching the first mating end 31, as well as pads or sockets connecting to the circuit traces on the connecting plate 4.

[0046] In the embodiments of this utility model, please refer to Figure 2 One of the first mating end 31 and the second mating end 32 is configured as a male terminal, and the other of the first mating end 31 and the second mating end 32 is configured as a female terminal. By configuring the first mating end 31 and the second mating end 32 as a male terminal and a female terminal respectively, a plug-in connection is formed, ensuring a tight and secure electrical connection between the first main board 1 and the connecting board 4, effectively avoiding problems such as poor contact and loosening. The male terminal can be composed of a metal pin and an insulating shell. The metal pin can be made of a highly conductive material (such as copper alloy), and the surface can be plated with gold or silver to improve oxidation resistance and conductivity. The insulating shell is made of a high-temperature resistant material with excellent insulation properties (such as polyimide or polycarbonate) to ensure electrical insulation performance in various working environments. The male terminal can be in the shape of a "mountain", D-shape, or cuboid, and can be designed according to actual needs. The female terminal is usually composed of a metal conductive socket and an insulating shell, and can be installed on the connecting board 4 by welding, screw fixing, or snap-fit ​​fixing. The female terminal can be designed in shapes such as cuboid or D-shape to match the shape of the male terminal.

[0047] In the embodiments of this utility model, please refer to Figures 6 to 8 The electrical connection device 100 also includes:

[0048] Upper shell 6;

[0049] The lower shell 5 has an internally formed receiving space with an opening, and the upper shell 6 is installed at the opening; and

[0050] The bracket 7 is located within the receiving space and is used to fix the first motherboard 1 and the second motherboard 2.

[0051] Specifically, the upper shell 6 is a cover plate of a certain thickness, whose shape and size match the opening of the lower shell 5, used to seal the receiving space of the lower shell 5 and protect the internal components. The upper shell 6 can be fixed to the lower shell 5 by screws, clips, adhesives, etc. For example, a recessed groove is provided around the periphery of the opening of the lower shell 5, and a protruding retaining ring is provided around the periphery of the upper shell 6. The upper shell 6 and the lower shell 5 are fixedly connected by the cooperation of the retaining ring and the groove. The bracket 7 can be an L-shaped or cuboid structure, used to fix the first main board 1 and the second main board 2. Optionally, the device can also be equipped with a battery, which is located on the same side of the first main board 1 and the second main board 2, electrically connected to the two main boards, and used to provide power to the first main board 1 and the second main board 2.

[0052] In the embodiments of this utility model, please refer to Figure 7 The electrical connection device 100 also includes a sealing ring 8, which is fixed to the upper shell 6 and embedded around the opening. The sealing ring 8 can be made of silicone rubber, nitrile rubber, fluororubber, or other rubber materials, or polyurethane elastomers. The sealing ring 8 can be circular, cuboid, or other shapes that match the periphery of the opening. The sealing ring 8 can be fixed to the upper shell 6 by bonding, snapping, or embedding. Bonding involves applying adhesive to the contact surfaces of the sealing ring 8 and the upper shell 6 to bond them together. Snapping utilizes slots or snap-fit ​​structures on the upper shell 6 to fix the sealing ring 8. Embedding involves pre-embedding the sealing ring 8 into a groove in the upper shell 6, achieving fixation through the structural design of the upper shell 6. The sealing ring 8 forms a tight seal at the opening between the upper shell 6 and the lower shell 5, effectively preventing external moisture, dust, and other foreign matter from entering the electrical connection device 100.

[0053] In the embodiments of this utility model, please refer to Figure 6 and Figure 7 An electrical connection port 9 is provided on the exterior of the upper shell 6 or the lower shell 5. One end of the electrical connection port 9 is embedded in the upper shell 6 or the lower shell 5, and the other end of the electrical connection port 9 is electrically connected to the first motherboard 1 or the second motherboard 2. The electrical connection port 9 can be a USB interface, an HDMI interface, or an RJ45 interface, etc., and is located on the exterior of the upper shell 6 or the lower shell 5. The electrical connection port 9 can be fixed to the upper shell 6 or the lower shell 5 by means of screws, clips, soldering, etc. The interior of the electrical connection port 9 has multiple metal contacts or pins, which can easily realize the connection between the electrical connection device 100 and external devices.

[0054] This utility model also proposes an electronic device, which includes a device body and an electrical connection device 100. The specific structure of the electrical connection device 100 is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0055] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An electrical connection device, characterized in that The electrical connection device includes: First motherboard; The second motherboard is disposed on one side of the first motherboard at a distance; A terminal assembly is mounted on the side of the first motherboard facing the second motherboard and is electrically connected to the first motherboard, with a pre-reserved mounting gap between the terminal assembly and the second motherboard; and A connecting plate is installed between the second main board and the docking terminal assembly. The thickness of the connecting plate is adapted to the thickness of the mounting gap. The second main board and the docking terminal assembly are electrically connected through the connecting plate.

2. The electrical connection device of claim 1, wherein, The connecting plate has a mounting surface for mounting the docking terminal assembly, the mounting surface being either a plane or an inclined surface.

3. The electrical connection device of claim 1, wherein, The connecting plate is a flexible circuit board.

4. The electrical connection device as claimed in claim 1, characterized in that, The connection board is provided with a predetermined number of circuit traces, which electrically connect the second motherboard and the docking terminal assembly.

5. The electrical connection device as claimed in claim 4, characterized in that, The connecting plate is provided with a wire guide groove, the circuit trace is placed in the wire guide groove, and the wire guide groove extends from the side of the connecting plate to the mounting surface of the connecting plate.

6. The electrical connection device as claimed in claim 1, characterized in that, The docking terminal assembly includes: The first mating end is installed on the side of the first motherboard facing the second motherboard and is electrically connected to the first motherboard; and The second docking end is installed between the first docking end and the connecting plate, and both the first docking end and the connecting plate are electrically connected to the second docking end.

7. The electrical connection device as claimed in claim 6, characterized in that, One of the first mating end and the second mating end is configured as a male terminal, and the other of the first mating end and the second mating end is configured as a female terminal.

8. The electrical connection device as claimed in any one of claims 1 to 7, characterized in that, The electrical connection device further includes: Top shell; The lower shell has an internally formed receiving space with an opening, and the upper shell is installed at the opening; and A bracket is disposed within the receiving space and is used to fix the first motherboard and the second motherboard.

9. The electrical connection device as claimed in claim 8, characterized in that, The electrical connection device further includes a sealing ring, which is fixed to the upper shell and embedded around the periphery of the opening; and / or, An electrical connection port is provided on the outside of the upper shell or the lower shell. One end of the electrical connection port is embedded in the upper shell or the lower shell, and the other end of the electrical connection port is electrically connected to the first motherboard or the second motherboard.

10. An electronic device, characterized in that, The electronic device includes an electrical connection device as claimed in any one of claims 1 to 9.

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