A miniature floating board-to-board connector structure

Abstract

The utility model relates to connector technical field especially relates to a micro floating type board -to-board connector structure, including the socket, the socket with the plug adopts vertically and perpendicularly and inserts the mode connection, realizes electric connection and mechanical cooperation, the socket's slot inside evenly interval setting has the contact terminal of elastic sheet along the length direction. Through the quick release mechanism that adopts the mounting seat and, the clamping block and the spring are composed, the socket can realize automatic locking with the mounting seat through the vertical insertion mode, in the insertion process, the circular clamping block is contracted under pressure, when aligning with the clamping hole on the socket, automatically pops out and clamps into the hole under the spring elastic force, completes the fixation, when replacing, can pull out only by exerting axial tension, need not to dismantle the welding or uses screwdriver etc.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a micro floating board-to-board connector structure. Background Technology

[0002] Board-to-board connectors are key interface components in modern electronic devices that enable electrical interconnection and mechanical fixation between two printed circuit boards. They are widely used in high-density, miniaturized electronic products such as smartphones, tablets, wearable devices, portable medical instruments, IoT terminals, and industrial control modules. As consumer electronics and smart hardware continue to develop towards thinner, lighter, more multifunctional, and more integrated designs, board-to-board connectors face increasingly stringent technical requirements in terms of miniaturization, height reduction, high-speed signal transmission, and assembly reliability.

[0003] Currently, a typical board-to-board connector consists of a mating plug and a socket, which are soldered to their respective PCBs using surface mount technology and electrically connected via vertical mating. Some structures also use mechanical fasteners such as screws for additional fixation to enhance connection stability. However, regardless of whether soldering or screw fixing is used, once the connector is assembled, it forms a permanent or semi-permanent connection. During this period, if the socket is damaged due to long-term insertion and removal wear, terminal deformation, foreign object intrusion, or circuit failure and needs replacement, for soldered structures, local heating and desoldering are required using a hot air gun or rework station. This operation is complex and can easily cause thermal damage to surrounding sensitive components, PCB pad detachment, or interlayer separation, seriously affecting product yield and reliability. For screw-fixed structures, although heating is not required, repeated disassembly and tightening of screws still require tools, which not only increases maintenance time and labor costs but also makes it difficult to meet the needs of automated production and rapid maintenance.

[0004] Therefore, there is an urgent need to provide a miniature floating board-to-board connector structure that is easy to assemble and disassemble. Utility Model Content

[0005] To overcome the shortcomings of existing board-to-board connectors, such as difficulty in replacing damaged sockets, the need for desoldering or repeated screw removal leading to low maintenance efficiency and easy damage to circuit boards, this utility model provides a miniature floating board-to-board connector structure that is easy to assemble and disassemble.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a miniature floating board-to-board connector structure, comprising a socket and a plug. The socket and the plug are connected via a vertical insertion method, achieving both electrical connection and mechanical engagement. The socket's slot contains spring-loaded contact terminals evenly spaced along its length. The plug's insertion end contains conductive terminals evenly spaced along its length. Both ends of the socket's slot are provided with snap plates. Corresponding positions on the plug are provided with snap grooves matching the snap plates. The socket has detachable mounting bases at both ends. Circular locking blocks are slidably mounted on both sides of the mounting base. Corresponding positions on both ends of the socket are provided with locking holes matching the circular locking blocks. A spring connects the circular locking blocks to the inner wall of the mounting base.

[0007] More preferably, rubber plates are embedded at both ends of the socket slot.

[0008] More preferably, both the socket and the plug have indicator labels on their outer ends.

[0009] More preferably, two adjacent mounting bases are provided with a protective cover, the protective cover is located on the side of the socket, the protective cover has a slot, a heat-conducting plate is inserted into the slot, and the heat-conducting plate is in close contact with the side of the socket.

[0010] More preferably, the protective cover is fixedly installed on the socket using screws.

[0011] More preferably, a silicone pad is provided on the top of the protective cover.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By adopting a quick-release mechanism composed of a mounting base, a locking block, and a spring, the socket can be automatically locked to the mounting base by vertical insertion. During the insertion process, the circular locking block is compressed and retracts. When it is aligned with the locking hole on the socket, it automatically pops out and locks into the hole under the action of the spring force to complete the fixation. When replacing, only axial pulling force needs to be applied to pull it out. There is no need to desolder or use tools such as screwdrivers. This design greatly simplifies the maintenance process and reduces the risk of thermal and mechanical damage to the PCB and surrounding components.

[0013] 2. By setting spring-type contact terminals in the socket slot, the elastic deformation characteristics of the plug and socket can be used to enable a certain relative displacement in the radial and axial directions. This floating structure can effectively absorb the alignment error caused by manufacturing tolerance, thermal deformation or stacking deviation of the two printed circuit boards during the mounting process, avoid stress concentration during insertion, prevent terminal deformation, solder joint cracking or insulation damage, and significantly improve the reliability of the connection and the product yield.

[0014] 3. By setting protective covers on both sides of the socket and placing heat-conducting plates that fit tightly against the sides of the socket, an efficient heat conduction path is formed. During operation, the Joule heat generated by the connector is quickly conducted out through the heat-conducting plates and dissipated to the external environment through natural convection or contact with the socket. This effectively suppresses local temperature rise, reduces the risk of contact resistance changes, and improves electrical performance and long-term reliability during high current transmission. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the socket, plug, and spring-loaded contact terminal components of this utility model.

[0017] Figure 3 This is a partial exploded view of the socket and plug components of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the mounting base, spring, and circular locking block of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the protective cover, screws, and heat-conducting plate of this utility model.

[0020] The above-mentioned figures include the following reference numerals: 1: socket, 2: plug, 3: spring-loaded contact terminal, 4: conductive terminal, 5: snap plate, 6: rubber plate, 7: warning label, 8: mounting base, 9: circular locking block, 10: spring, 11: protective cover, 12: screw, 13: heat-conducting plate, 14: silicone pad. Detailed Implementation

[0021] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0022] Example 1: Please refer to Figures 1-4A miniature floating board-to-board connector structure includes a socket 1 and a plug 2. The socket 1 and the plug 2 are connected by a vertical insertion method to achieve electrical connection and mechanical cooperation. The socket 1 has spring-loaded contact terminals 3 evenly spaced along its length inside the slot. The plug 2 has conductive terminals 4 evenly spaced along its length at the insertion end. When the plug 2 is inserted into the socket 1, the conductive terminals 4 and spring-loaded contact terminals 3 form elastic contact, achieving stable electrical conduction. The socket 1 has retaining plates 5 at both ends of the slot. The plug 2 has corresponding retaining grooves that match the retaining plates 5. The retaining plates 5 engage with the retaining grooves to form a mechanical interlock, effectively preventing the connector from loosening under vibration or external force, thus improving connection performance. To ensure stability and reliability, rubber plates 6 are embedded at both ends of the slot of the socket 1. During the use of the connector, the rubber plates 6 act as a buffer and shock absorber, reducing insertion stress. Both ends of the socket 1 and the plug 2 are provided with indicator marks 7, which are arrow symbols used to indicate the correct insertion direction and polarity alignment position, preventing users from misinserting or reversing the installation, and improving assembly accuracy. The left and right ends of the socket 1 are detachably provided with mounting bases 8. Circular locking blocks 9 are slidably installed on both sides of the mounting base 8. Corresponding positions on the left and right ends of the socket 1 are provided with locking holes that match the circular locking blocks 9. A spring 10 connects the circular locking blocks 9 to the inner wall of the mounting base 8, giving the locking blocks a tendency to pop outward.

[0023] In use, the socket 1 and plug 2 are fixed to the circuit board using through-hole insertion technology. When the socket 1 is installed into the mounting base 8, it is inserted vertically between the two mounting bases 8. As the socket 1 is inserted, its sidewalls press against the circular locking block 9, causing it to retract inward against the elastic force of the spring 10. When the socket 1 continues to move down until the locking hole aligns with the locking block, the circular locking block 9 automatically pops out and locks into the locking hole under the restoring force of the spring 10, achieving quick locking and reliable fixation of the socket 1. This structure can fix the socket 1 without welding or screw 12. When the socket 1 needs to be replaced due to wear, damage, or maintenance, it is only necessary to pull the socket 1 out vertically. At this time, the circular locking block 9 will re-engage. The plug retracts inward due to pressure from the side wall of socket 1, disengaging from the locking hole and enabling non-destructive disassembly. The replacement process requires no heating or tools, significantly improving maintenance efficiency and reducing the risk of damage to the PCB and surrounding components. During the connection process, when plug 2 is inserted downward into socket 1, the conductive terminal 4 on plug 2 makes elastic contact with the spring-type contact terminal 3 inside socket 1. Due to the good elastic deformation capability of spring-type contact terminal 3, it can produce slight displacement in the radial and axial directions, achieving floating compensation within a certain range. This effectively absorbs the alignment error caused by mounting deviation, uneven thermal expansion, or structural deformation between the two PCBs, avoiding stress concentration on the terminals or solder joints, thereby improving the reliability and service life of the connection.

[0024] Example 2: Based on Example 1, please refer to... Figure 5 The two adjacent mounting bases 8 are provided with a protective cover 11. The protective cover 11 is fixed to the socket 1 with screws 12 for easy disassembly and assembly. The protective cover 11 is located on the side of the socket 1. The protective cover 11 has a slot, in which a heat-conducting plate 13 is inserted. The heat-conducting plate 13 fits tightly against the side of the socket 1. A silicone pad 14 is provided on the top of the protective cover 11. When the plug 2 is fully inserted into the socket 1, the plug 2 contacts the silicone buffer pad, which plays a role in buffering and shock absorption, absorbing the impact force during the insertion process, and preventing the internal terminals from deforming due to rigid collision.

[0025] When the socket 1 is in operation, the Joule heat generated by the current passing through the spring-type contact terminal 3 causes the body temperature to rise. At this time, the heat is quickly conducted to the body of the heat-conducting plate 13 through the large-area contact surface between the heat-conducting plate 13 and the socket 1, and further dissipated to the surrounding environment, achieving effective passive heat dissipation. This structure significantly reduces the local temperature rise of the connector and improves the electrical stability and long-term reliability under high current conditions.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A miniature floating board-to-board connector structure, comprising a socket (1) and a plug (2), wherein the socket (1) and the plug (2) are connected by vertical insertion to achieve electrical connection and mechanical cooperation; the socket (1) has spring-loaded contact terminals (3) evenly spaced along its length inside the slot; the plug (2) has conductive terminals (4) evenly spaced along its length at the insertion end; both ends of the socket (1) are provided with snap plates (5); and the plug (2) has corresponding slots that match the snap plates (5); characterized in that... The socket (1) is detachably provided with mounting bases (8) at both ends. Circular locking blocks (9) are slidably installed on both sides inside the mounting bases (8). Locking holes matching the circular locking blocks (9) are opened at corresponding positions at both ends of the socket (1). A spring (10) is connected between the circular locking blocks (9) and the inner wall of the mounting bases (8).

2. The micro floating board-to-board connector structure as described in claim 1, characterized in that, Rubber plates (6) are embedded at both ends of the slot of the socket (1).

3. The micro floating board-to-board connector structure as described in claim 2, characterized in that, Both ends of the socket (1) and the plug (2) are provided with prompt labels (7).

4. The micro floating board-to-board connector structure as described in claim 3, characterized in that, The two adjacent mounting bases (8) are provided with a protective cover (11). The protective cover (11) is located on the side of the socket (1). The protective cover (11) has a slot, and a heat-conducting plate (13) is inserted into the slot. The heat-conducting plate (13) is in close contact with the side of the socket (1).

5. The micro floating board-to-board connector structure as described in claim 4, characterized in that, The protective cover (11) is fixedly installed on the socket (1) with screws (12).

6. The micro floating board-to-board connector structure as described in claim 5, characterized in that, A silicone pad (14) is provided on the top of the protective cover (11).

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