A board-to-board connector capable of automatically guiding
By designing a board-to-board connector that can be automatically directed, the contact between the conductive pin and the conductive contact and the resistance of the annular damper is solved, and the existing connectors have poor contact in the case of tolerance stacking or deviation are achieved, and a high-reliability circuit board connection is achieved.
Patent Information
- Application Number
- CN202421451134.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-24
AI Technical Summary
In the case of large tolerance stacking or circuit board deviation, existing boards are prone to poor contact or falling off, affecting the normal operation of the equipment.
A plate-to-board connector that can be automatically directed is designed, including a housing, a movable sleeve, a conductive contact and an annular damping member. Through the contact between the conductive pin and the conductive contact member, the elastic contact sheet adaptively deforms to ensure stable contact; in the case of large tolerances, the conductive pin generates radial thrust, overcomes the resistance of the damping shrapnel, shifts the movable sleeve, and realizes automatic guidance.
The connector can be automatically adjusted in the case of tolerance stacking or deviation, ensuring stable connections between circuit boards, improving connection reliability, and reducing the impact of tolerance stacking.
Smart Images
Figure CN222720690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connectors, in particular to a board-to-board connector capable of automatic correction. Background Art
[0002] In some cases where electrical connections need to be made between circuit boards, board-to-board connectors are required. The board-to-board connectors on the market are hard connections with strict tolerance requirements. When the tolerance stacking at both ends of the connector is large, the connection difficulty of the connector increases, and poor contact or falling off is likely to occur, affecting the normal operation of the equipment. Summary of the invention
[0003] The problem to be solved by the utility model is to provide a board-to-board connector which can be automatically guided, thereby reducing the connection difficulty and improving the connection reliability.
[0004] To solve the above technical problems, an automatically correctable board-to-board connector is provided according to the utility model, comprising a shell, a movable sleeve, a conductive contact, and an annular damping member, wherein the shell comprises an annular upper cover and an annular lower cover, the annular upper cover and the annular lower cover are spliced and connected to form an inner cavity, the movable sleeve comprises a sleeve portion, a disc portion arranged on the circumference of the sleeve portion, the sleeve portion is movably arranged in the inner ring of the annular upper cover and the annular lower cover, the disc portion is movably arranged inside the shell, the annular damping member comprises an outer ring portion, an upper damping ring, and a lower damping ring, the upper damping ring comprises a first Damping springs, the lower damping ring includes a second damping spring evenly distributed on the inner edge of the bottom of the outer ring part, the disc part is fitted between the outer ring part, the upper damping ring and the lower damping ring, the annular damping member is movably arranged in the inner cavity, the first damping spring and the second damping spring are respectively abutted against the top wall and the bottom wall of the inner cavity, the conductive contact member is formed by a section of conductive metal sheet being wound in a "C" shape, the conductive contact member is arranged in the inner ring of the sleeve part, the inner diameter of the conductive contact member gradually decreases from both ends to the middle part, and strip grooves are evenly spaced through the conductive metal sheet, and an elastic contact piece is formed between the two strip grooves.
[0005] Preferably, an annular limiting groove matching with the conductive contact piece is arranged on the inner ring of the sleeve portion, and the conductive contact piece is arranged on the annular limiting groove.
[0006] Preferably, the annular upper cover comprises a top ring and a first side ring connected to the bottom periphery of the top ring, and the annular lower cover comprises a bottom ring and a second side ring connected to the top of the bottom ring, the first side ring is sleeved on the second side ring and its bottom end is adjacent to the top surface of the bottom ring.
[0007] Preferably, the inner diameters of the top ring and the bottom ring are larger than the outer diameter of the sleeve portion.
[0008] Preferably, both ends of the inner ring of the sleeve portion are provided with chamfers.
[0009] The beneficial effects of the utility model are as follows: the utility model provides a board-to-board connector that can be automatically guided, which can be interconnected with a conductive plug. The housing of the connector is installed on one of the circuit boards, and the conductive plug is installed on the other circuit board. When the two circuit boards are connected, the conductive plug is inserted into the conductive contact piece. When the elastic contact piece contacts the conductive plug, it can be adaptively deformed to ensure that the conductive contact piece and the conductive plug are in stable contact. In the case where the tolerance between the two ends of the connector is large, or when the two circuit boards are greatly deviated, the center of the conductive plug and the center of the movable sleeve are greatly deviated, and the conductive plug will generate a radial thrust on the movable sleeve. When the radial thrust is large enough, the resistance between the first damping spring sheet, the second damping spring sheet and the top wall and the bottom wall of the inner cavity can be overcome. The movable sleeve will adaptively deviate in the inner cavity with the conductive plug, ensuring that the conductive plug can be properly inserted into the conductive contact piece. It has the function of automatic guidance, ensures that the connection between the circuit boards is stable, reduces the influence caused by the tolerance stacking, has high connection reliability, and is worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The schematic diagram of the appearance structure of the utility model is illustrated.
[0011] Figure 2 The schematic diagram of the exploded structure of the utility model is illustrated.
[0012] Figure 3 The cross-sectional view of the movable sleeve of the utility model in the normal position is illustrated.
[0013] Figure 4 The cross-sectional view of the movable sleeve of the utility model in the offset state is illustrated.
[0014] Figure 5 The top view of the movable sleeve of the utility model in the upright position is illustrated.
[0015] Figure 6 The top view of the movable sleeve of the utility model in the offset state is illustrated.
[0016] Description of the accompanying figures: shell 1, annular upper cover 10, top ring 100, first side ring 101, annular lower cover 11, bottom ring 110, second side ring 111, inner cavity 12, movable sleeve 2, sleeve portion 20, annular limiting groove 200, disc portion 21, conductive contact member 3, strip groove 30, elastic contact piece 31, annular damping member 4, outer ring portion 40, upper damping ring 41, first damping spring piece 410, lower damping ring 42, second damping spring piece 420. DETAILED DESCRIPTION
[0017] To make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments.
[0018] Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present disclosure.
[0019] refer to Figure 1-6 .
[0020] The utility model provides a board-to-board connector capable of automatic correction, comprising a shell 1, a movable sleeve 2, a conductive contact member 3, and an annular damping member 4. The shell 1 comprises an annular upper cover 10 and an annular lower cover 11, the annular upper cover 10 and the annular lower cover 11 are spliced and connected to form an inner cavity 12, the movable sleeve 2 comprises a sleeve portion 20, a disc portion 21 arranged on the periphery of the sleeve portion 20, the sleeve portion 20 is movably arranged in the inner ring of the annular upper cover 10 and the annular lower cover 11, the disc portion 21 is movably arranged inside the shell 1, the annular damping member 4 comprises an outer ring portion 40, an upper damping ring 41, and a lower damping ring 42, the upper damping ring 41 comprises a first damping spring sheet 4 uniformly distributed on the inner edge of the top of the outer ring portion 40 10, the lower damping ring 42 includes a second damping spring piece 420 evenly distributed on the inner edge of the bottom of the outer ring portion 40, the disc portion 21 is fitted between the outer ring portion 40, the upper damping ring 41, and the lower damping ring 42, the annular damping member 4 is movably arranged in the inner cavity 12, the first damping spring piece 410 and the second damping spring piece 420 are respectively abutted against the top wall and the bottom wall of the inner cavity 12, the conductive contact member 3 is formed by a section of conductive metal sheet being wound in a "C" shape, the conductive contact member 3 is arranged in the inner ring of the sleeve portion 20, the inner diameter of the conductive contact member 3 gradually decreases from both ends to the middle, and strip grooves 30 are evenly spaced through the conductive metal sheet, and an elastic contact sheet 31 is formed between the two strip grooves 30.
[0021] Its working principle is that it can be interconnected with the conductive plug. The housing 1 of the connector is installed on one of the circuit boards, and the conductive plug is installed on the other circuit board. When the two circuit boards are connected, the conductive plug is inserted into the conductive contact 3. The elastic contact piece 31 can be deformed adaptively when in contact with the conductive plug, ensuring that the conductive contact 3 is in stable contact with the conductive plug. In the case where the tolerance between the two ends of the connector is large, or when the two circuit boards are greatly deviated, the center of the conductive plug and the center of the movable sleeve 2 will have a large deviation, and the conductive plug will generate a radial thrust on the movable sleeve 2. In the case where the radial thrust is large enough, it can overcome the resistance between the first damping spring sheet 410, the second damping spring sheet 420 and the top wall and bottom wall of the inner cavity 12. The movable sleeve 2 will be adaptively offset in the inner cavity 12 with the conductive plug, ensuring that the conductive plug can be properly inserted into the conductive contact 3. It has the function of automatic correction, ensuring stable connection between circuit boards, reducing the impact of tolerance stacking, and has high connection reliability, which is worthy of promotion and use.
[0022] Based on the above embodiment, an annular limiting groove 200 matching the conductive contact 3 is provided on the inner ring of the sleeve portion 20, and the conductive contact 3 is provided on the annular limiting groove 200. There is a certain gap between the two ends of the conductive contact 3. When the conductive contact 3 is assembled into the sleeve portion 20, the two sides of the conductive contact 3 are pinched to make the two ends of the conductive contact 3 contact, thereby reducing the diameter of the conductive contact 3, making it easier to assemble the conductive contact 3 into the annular limiting groove 200. After the conductive contact 3 is released, the conductive contact 3 will recover elastically and be stuck in the annular limiting groove 200.
[0023] Based on the above embodiment, the annular upper cover 10 includes a top ring 100 and a first side ring 101 connected to the bottom periphery of the top ring 100; the annular lower cover 11 includes a bottom ring 110 and a second side ring 111 connected to the top of the bottom ring 110; the first side ring 101 is sleeved on the second side ring 111 and its bottom end is adjacent to the top surface of the bottom ring 110, so as to facilitate the disassembly and assembly between the annular upper cover 10 and the annular lower cover 11.
[0024] Based on the above embodiment, the inner diameters of the top ring 100 and the bottom ring 110 are larger than the outer diameter of the sleeve portion 20, which can provide a certain radial activity space for the sleeve portion 20 to achieve automatic guidance of the conductive pins and improve the connection stability of the connector.
[0025] Based on the above embodiment, both ends of the inner circle of the sleeve portion 20 are provided with chamfers to facilitate the insertion of the conductive pins from both ends of the sleeve portion 20 and make the connection smoother.
[0026] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.
Claims
1. A board-to-board connector capable of automatic alignment, characterized in that: The invention comprises a shell, a movable sleeve, a conductive contact, and an annular damping member, wherein the shell comprises an annular upper cover and an annular lower cover, wherein the annular upper cover and the annular lower cover are spliced and connected to form an inner cavity, wherein the movable sleeve comprises a sleeve portion and a disc portion arranged at the periphery of the sleeve portion, wherein the sleeve portion is movably arranged in the inner ring of the annular upper cover and the annular lower cover, wherein the disc portion is movably arranged inside the shell, wherein the annular damping member comprises an outer ring portion, an upper damping ring, and a lower damping ring, wherein the upper damping ring comprises a first damping spring sheet evenly distributed on the inner edge of the top of the outer ring portion, and wherein the lower damping ring comprises a first damping spring sheet evenly distributed on the outer ring portion. The second damping spring sheet is at the inner edge of the bottom of the ring portion, the disc portion is fitted between the outer ring portion, the upper damping ring and the lower damping ring, the annular damping member is movably arranged in the inner cavity, the first damping spring sheet and the second damping spring sheet are respectively abutted against the top wall and the bottom wall of the inner cavity, the conductive contact member is formed by a section of conductive metal sheet being wound in a "C" shape, the conductive contact member is arranged in the inner ring of the sleeve portion, the inner diameter of the conductive contact member gradually decreases from both ends to the middle, and strip grooves are evenly spaced through the conductive metal sheet, and an elastic contact sheet is formed between the two strip grooves.
2. The automatically-guided board-to-board connector according to claim 1, characterized in that: An annular limiting groove matching the conductive contact piece is arranged on the inner ring of the sleeve portion, and the conductive contact piece is arranged on the annular limiting groove.
3. The automatically-guided board-to-board connector according to claim 2, characterized in that: The annular upper cover includes a top ring and a first side ring connected to the bottom periphery of the top ring; the annular lower cover includes a bottom ring and a second side ring connected to the top of the bottom ring; the first side ring is sleeved on the second side ring and its bottom end is adjacent to the top surface of the bottom ring.
4. The automatically-guided board-to-board connector according to claim 3, characterized in that: The inner diameters of the top ring and the bottom ring are larger than the outer diameter of the sleeve portion.
5. The automatically-guided board-to-board connector according to claim 4, characterized in that: Both ends of the inner ring of the sleeve portion are provided with chamfers.