Board-to-board floating connector
By designing M-type spring terminals and male terminals, combined with locking and alignment structures, the problems of small contact area and limited movement space in existing floating connectors are solved, achieving more stable signal transmission and higher product quality.
Patent Information
- Application Number
- CN202422780292.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The small contact area of the spring terminals in existing floating connectors leads to unstable signal transmission, limited space for movement, and susceptibility to damage, affecting product performance and quality.
Design a board-to-board floating connector that uses M-type spring terminals and male terminals to increase the contact area, and ensures a stable connection through locking and alignment structures, while the elastic arm provides elastic deformation to adapt to offset.
It improves the stability and range of motion of signal transmission, enhances the quality and functional reliability of the product, and reduces the risk of interference during insertion.
Smart Images
Figure CN223771474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of floating connector technology, specifically a board-to-board floating connector. Background Technology
[0002] In the existing floating connector structure, the contact area of the spring terminals is small. After the male and female sockets are mated, it will affect the instability of signal transmission. The small contact area of the terminals also restricts the movement space after the male and female are mated. The spring terminals are the same width as the male terminals, and the female socket can only make full contact if it is centered. If it moves to the left or right during mating, the contact area of the terminals is only one-third, which leads to the deviation of the overall product performance and the risk of instability. At the same time, the limited movement space after mating means that if there is interference during mating, such as forced insertion, the springs may be damaged, causing functional and quality risks. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a board-to-board floating connector, which solves the problems mentioned in the background section.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a board-to-board floating connector, comprising a female connector and a male connector. The female connector includes several sets of spring-loaded terminals, the outer surfaces of which are connected to a female connector plastic. The male connector includes several sets of male connector terminals, the bottom of which are connected to a lower male connector plastic, and the top of which are connected to an upper male connector plastic. Each spring-loaded terminal includes a base portion, the upper part of which is symmetrically connected to a first elastic arm. The top of each of the two first elastic arms is connected to a second elastic arm, and the bottom of each of the two second elastic arms is connected to a bent portion. The male connector is inserted between the two bent portions and abuts against each other. At the abutting position, the bent portion is at least twice as wide as the male connector.
[0005] Furthermore, both ends of the female plastic are connected to locking protrusions, and both sides of the female plastic are symmetrically connected to alignment protrusions. Both ends of the male lower plastic are provided with locking grooves, and both sides of the male lower plastic are symmetrically provided with alignment grooves.
[0006] Furthermore, after the female plastic and the lower male plastic are assembled, the locking protrusion engages inside the locking groove, and the alignment protrusion engages inside the alignment groove.
[0007] Furthermore, the first elastic arm has a hollow structure inside, the top of the second elastic arm is located inside the hollow structure, and the bottom end extends towards the base at a 30° angle until the connected bent part abuts.
[0008] Furthermore, the two first elastic arms, the second elastic arm, and the bending portion together form an "M"-shaped structure, and the "M"-shaped structure can undergo elastic deformation.
[0009] Furthermore, both the spring-loaded terminal and the male terminal have pins, which extend from the bottom of the female plastic and the top of the male plastic to the outside.
[0010] This invention provides a board-to-board floating connector. Compared with the prior art, it has the following advantages:
[0011] This board-to-board floating connector features an enlarged and widened contact area for the spring terminals. After male and female mating (with the spring terminals being wider than the male terminals after contact), the female connector can still achieve a complete and secure connection regardless of whether it moves slightly to the left or right. This improves contact performance and increases the product's movement space after mating, enhancing product quality. Furthermore, after male and female mating, the spring terminals and male terminals can make complete contact within the designed space, significantly improving product functionality, quality, and yield. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of the lower layer of plastic in the female plastic box of this utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the spring-loaded terminal in this utility model;
[0015] Figure 4 This is a schematic diagram of the assembly structure of this utility model;
[0016] Figure 5 This is a half-sectional view of the assembled version of this utility model.
[0017] In the diagram: 1. Female connector; 11. Female connector plastic; 111. Locking protrusion; 112. Alignment protrusion; 12. Spring contact terminal; 121. Seat body; 122. First elastic arm; 123. Second elastic arm; 124. Bending part; 2. Male connector; 21. Lower layer plastic of male connector; 211. Locking groove; 212. Alignment groove; 22. Upper layer plastic of male connector; 23. Male connector terminal. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-5 This utility model provides a technical solution: a board-to-board floating connector, mainly composed of a female connector 1 and a male connector 2, wherein,
[0020] The female plastic 11 serves as the main body of the female connector 1, supporting and protecting the internal spring terminal 12. Both ends are connected to locking protrusions 111, which engage with the locking grooves 211 of the lower layer plastic 21 of the male connector, ensuring the stability of the female connector 1 and the male connector 2 after assembly. Simultaneously, symmetrical alignment protrusions 112 are connected to both sides of the female plastic 11. These alignment protrusions 112 cooperate with the alignment grooves 212 of the lower layer plastic 21 of the male connector to achieve more precise alignment.
[0021] The spring-loaded terminal 12 is the core part of the female connector 1, used to establish an electrical connection with the male connector 23. Each spring-loaded terminal 12 includes a base portion 121, two first elastic arms 122, two second elastic arms 123, and two bent portions 124. The base portion 121 is fixed to the female connector plastic 11, while the two first elastic arms 122 extend symmetrically from the upper part of the base portion 121, forming a certain elastic space. Each of the two first elastic arms 122 is connected to a second elastic arm 123 at its top. The top ends of these second elastic arms 123 are located in the hollow structure inside the first elastic arms 122, and the bottom ends extend towards the base portion 121 at a 30° angle until they connect with the bent portions 124. The design of the two bent portions 124 allows them to abut against each other, and at the abutting position, they are at least twice as wide as the male connector 23 to ensure good elasticity and stability during insertion.
[0022] The male connector 2 mainly consists of an upper male plastic layer 22 and a lower male plastic layer 21. Several sets of male terminals 23 are connected to the bottom of the lower male plastic layer 21. These male terminals 23 are used to insert between the spring contacts 12 of the female connector 1 and establish an electrical connection. Simultaneously, both ends of the lower male plastic layer 21 have locking grooves 211, and both sides have symmetrically arranged alignment grooves 212, used to mate with the locking protrusions 111 and alignment protrusions 112 of the female connector plastic layer 11. The upper male plastic layer 22 covers the top of the male terminals 23, providing additional protection and support. The male terminals 23 are the core part of the male connector 2, used to establish an electrical connection with the spring contacts 12. They are designed to be able to insert between two bends 124 and abut against the bends 124, thereby achieving an electrical connection.
[0023] During assembly, first align the lower plastic layer 21 of the male connector 2 with the plastic layer 11 of the female connector 1, and then gently insert it. During this process, the male connector terminal 23 inserts between the two bent portions 124 of the spring contact terminal 12 and remains stable under the elastic pressure of the bent portions 124. Simultaneously, the locking protrusion 111 engages in the locking groove 211, and the alignment protrusion 112 engages in the alignment groove 212, thereby ensuring a stable connection between the female connector 1 and the male connector 2.
[0024] Furthermore, since the first elastic arm 122 and the second elastic arm 123 of the spring terminal 12 both have a certain elastic deformation capability, when the male head 2 experiences a slight offset or wobbling during insertion, the spring terminal 12 can adapt to this offset or wobbling through its elastic deformation, thereby ensuring the stability and reliability of the electrical connection.
[0025] Finally, both the spring-loaded terminal 12 and the male connector terminal 23 have pins. These pins extend outward from below the female connector plastic 11 and above the male connector upper plastic 22, respectively, for soldering to corresponding solder points on the circuit board. In this way, when the female connector 1 and the male connector 2 are connected together, they can connect the two circuit boards through the pins.
Claims
1. A board-to-board floating connector comprising a female seat (1) and a male head (2), characterized in that, The female seat (1) includes several groups of elastic sheet terminals (12), and the outer parts of the several groups of elastic sheet terminals (12) are jointly connected with a female seat plastic (11); the male head (2) includes several groups of male head terminals (23), and the bottoms of the several groups of male head terminals (23) are jointly connected with a male head lower layer plastic (21), and the tops are jointly connected with a male head upper layer plastic (22); the elastic sheet terminal (12) includes a seat body part (121), the upper part of the seat body part (121) is symmetrically connected with a first elastic arm (122), the top of the two first elastic arms (122) is connected with a second elastic arm (123), and the bottom end of the two second elastic arms (123) is connected with a bending part (124); the male head terminal (23) is inserted between the two bending parts (124) and abuts, and the bending part (124) is at least twice as wide as the male head terminal (23) at the abutting position.
2. A board-to-board floating connector according to claim 1, wherein The two ends of the female seat plastic (11) are connected with clamping protrusions (111), and the two sides of the female seat plastic (11) are symmetrically connected with positioning protrusions (112); the two ends of the male head lower layer plastic (21) are provided with clamping grooves (211), and the two sides of the male head lower layer plastic (21) are symmetrically provided with positioning grooves (212).
3. A board-to-board floating connector according to claim 2, wherein After the female seat plastic (11) and the male head lower layer plastic (21) are assembled, the clamping protrusion (111) is clamped in the inside of the clamping groove (211), and the positioning protrusion (112) is clamped in the inside of the positioning groove (212).
4. A board-to-board floating connector according to claim 1, wherein The inside of the first elastic arm (122) is provided with a hollow structure, the top end of the second elastic arm (123) is located in the inside of the hollow structure, and the bottom end extends in the direction of the seat body part (121) at an inclination angle of 30° until the connected bending part (124) abuts.
5. A board-to-board floating connector according to claim 4, wherein The two first elastic arms (122), the second elastic arm (123) and the bending part (124) jointly form an "M" type structure, and the "M" type structure can be elastically deformed.
6. A board-to-board floating connector according to claim 1, wherein The elastic sheet terminal (12) and the male head terminal (23) both have pins, and the pins extend to the outside from below the female seat plastic (11) and above the male head upper layer plastic (22).