Floating type board-to-board connector assembly

Abstract

The utility model discloses a floating type board-to-board connector assembly, which comprises a male seat connector and a female seat connector detachably and electrically connected with the male seat connector, the male seat connector comprises a male seat shell, two rows of slots are arranged in the male seat shell in parallel, and a plurality of male seat terminals are uniformly arranged in the slots at intervals; the female seat connector comprises a female seat shell, a floating substrate which is arranged in the female seat shell in a floating manner and is provided with double plug boards, and a plurality of female seat terminals; each female seat terminal comprises a second terminal main body, a second contact arm with two elastic contact surfaces, an elastic deformation part and a second welding pin which is used for being welded with a second circuit board; when the male seat connector and the female seat connector are in plugging cooperation, the first contact arm and the second contact arm are contacted to realize electrical connection. The floating type board-to-board connector assembly provided by the utility model adopts a double-plugboard and double-contact design, so that the contact is more stable and reliable, and the terminals are high in structural strength, not easy to damage and longer in service life.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric connector, especially relates to a floating plate-to-plate connector. BACKGROUND

[0002] The floating plate-to-plate connector is an electronic component for connecting two printed circuit boards (PCB). Due to the manufacturing tolerance of PCB, precision deviation is prone to occur in the actual assembly process, and misalignment may occur, therefore, its design allows relative displacement within a certain range to compensate for the cumulative tolerance between PCBs caused by manufacturing tolerance, assembly error or thermal expansion, and especially eliminates the misalignment phenomenon in the "x" and "y" directions during PCB installation, and by means of the floating structure inside the connector, damage to various components (such as solder joints and other connector interfaces) on the PCB can be effectively prevented.

[0003] The floating plate-to-plate connector mainly consists of a female connector and a male connector, the female connector is usually welded on one circuit board, and the male connector is welded on the other circuit board, the female connector and the male connector are respectively provided with a corresponding number of terminals, and by inserting the female connector and the male connector, the communication connection between the two circuit boards can be realized. However, with the gradual advancement of the market demand trend of miniaturization and micro-miniaturization of consumer electronic products, how to ensure the terminal strength, contact surface and contact stability of the floating plate-to-plate connector under the premise of limited size has become a key factor to promote the further development of the floating plate-to-plate connector technology. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a floating plate-to-plate connector assembly to solve the deficiency of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The application discloses a floating plate-to-plate connector assembly, which comprises a male seat connector and a female seat connector detachably connected with the male seat connector, the male seat connector comprises a male seat shell, two rows of slots are arranged in parallel in the male seat shell, and a plurality of male seat terminals are uniformly and spacedly arranged in the slots; the male seat terminal comprises a first terminal main body embedded in the male seat shell, two first contact arms symmetrically arranged and extending towards the opening direction of the slot, and a first soldering leg arranged at the bottom of the male seat shell and extending outwards for soldering with a first circuit board; the female seat connector comprises a female seat shell, a floating base body floatingly arranged in the female seat shell and provided with double insertion plates, and a plurality of female seat terminals matched with the male seat terminals; the female seat terminal comprises a second terminal main body arranged in the insertion plate, a second contact arm arranged at the top of the second terminal main body and expanded to both sides of the insertion plate to form two elastic contact surfaces, an elastic deformation part outwardly extended from the bottom end of the second terminal main body and bent, and a second soldering leg outwardly extended from the elastic deformation part and clamped on the female seat shell for soldering with a second circuit board; when the male seat connector is inserted and matched with the female seat connector, the first contact arm is in contact with the second contact arm to realize electrical connection.

[0007] Further, a plurality of first terminal mounting grooves are equidistantly arranged in each row of slots, and the male seat terminals are inserted into the first terminal mounting grooves.

[0008] Further, the second contact arm comprises a first elastic branch arm and a second elastic branch arm outwardly extended from the first elastic branch arm and reversely bent, and the elastic contact surface of the first elastic branch arm is parallel to the elastic contact surface of the second elastic branch arm and is spaced apart from the elastic contact surface of the second elastic branch arm.

[0009] Further, the second terminal main body is formed by partially overlapping and riveting and fixing the first elastic branch arm and the second elastic branch arm.

[0010] Further, the insertion plate is provided with a second terminal mounting groove, a through hole is arranged in the side of the second terminal mounting groove, the second contact arm is inserted into the mounting groove, and the first contact arm can be electrically connected with the second contact arm through the through hole.

[0011] Further, a contact protrusion is arranged on the first contact arm, so that the first contact arm can be better matched and contacted with the second contact arm.

[0012] Further, the structure of the elastic deformation part can be any one of V-shaped, Z-shaped, U-shaped and S-shaped.

[0013] Further, the male seat connector further comprises a male seat grounding sheet clamped on both ends of the male seat connector shell and soldered with the first circuit board.

[0014] Further, the female seat shell end is provided with a sliding groove, both ends of the floating base body are formed with sliding blocks matched with the sliding groove, and the floating base body is floatingly installed on the female seat shell through the sliding blocks.

[0015] Further, the female seat connector further comprises female seat grounding sheets embedded at both ends of the female seat shell, covering the sliding grooves and being welded with the second circuit board.

[0016] Compared with the prior art, the utility model has the beneficial technical effects that:

[0017] The floating plate-to-plate connector assembly provided by the utility model adopts double-inserting-plate design, the male seat terminal adopts a harpoon type structure design, the female seat terminal is bent and formed with two elastic contact surfaces, double-sided double-point contact is formed, the reliability of terminal contact is improved, even if foreign matter is attached to one of the contact surfaces, the other contact surface can still maintain an electrically connected state. The main part of the female seat terminal is formed by two elastic supporting arms overlapping and being riveted and pressed, so that the single female seat terminal structure is thicker, stronger, less likely to be damaged and has a longer service life. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings:

[0019] Figure 1 A structure schematic view of a floating plate-to-plate connector assembly provided by the utility model embodiment in a plugging state;

[0020] Figure 2 A structure schematic view of a floating plate-to-plate connector assembly provided by the utility model embodiment in a separated state;

[0021] Figure 3 A sectional view of a floating plate-to-plate connector assembly provided by the utility model embodiment in a plugging state;

[0022] Figure 4 An exploded view of a male seat connector in a floating plate-to-plate connector assembly provided by the utility model embodiment;

[0023] Figure 5 An exploded view of a female seat connector in a floating plate-to-plate connector assembly provided by the utility model embodiment;

[0024] Figure 6 A structure schematic view of a male seat terminal in a floating plate-to-plate connector assembly provided by the utility model embodiment;

[0025] Figure 7The utility model provides a kind of structure schematic diagram of female seat terminal in floating type board-to-board connector assembly provided by the utility model embodiment.

[0026] Figure 8 The utility model provides a kind of structure schematic diagram of female seat grounding sheet in floating type board-to-board connector assembly provided by the utility model embodiment.

[0027] In the drawing, the component list represented by each mark is as follows:

[0028] 1-male seat shell, 101-slot, 102-first terminal installation slot, 2-male seat terminal, 201-first terminal main body, 202-first contact arm, 203-contact protrusion, 204-first solder leg, 3-male seat grounding sheet, 301-buckle, 4-first circuit board, 5-female seat shell, 501-second terminal installation slot, 502-sliding slot, 6-floating matrix, 601-plugboard, 602-third terminal installation slot, 603-through hole, 604-sliding block, 7-female seat terminal, 701-second contact arm, 702-second terminal main body, 703-elastic deformation part, 704-second solder leg, 705-first elastic support arm, 706-second elastic support arm, 8-female seat grounding sheet, 801-cover plate, 802-fixing plate, 803-welding leg, 9-second circuit board. DETAILED DESCRIPTION

[0029] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] As Figure 1 And Figure 2 The utility model embodiments provide a kind of floating type board-to-board connector assembly, including male seat connector and the female seat connector of detachably with male seat connector electric connection, specifically:

[0031] As Figure 3 And Figure 4As shown in the embodiment, the male seat connector comprises a male seat shell 1, a plurality of male seat terminals 2 and two male seat grounding sheets 3. The male seat shell 1 is the basic part of the male seat connector, serving as the mounting base of other components and providing a physical support. Two rows of slots 101 are formed in parallel in the male seat shell 1, and a plurality of first terminal mounting slots 102 for mounting the male seat terminals 2 are formed in the slots 101 at equal intervals to serve as electrical insulation and uniformly isolate the male seat terminals 2 so that the male seat terminals 2 do not interfere with each other. The male seat grounding sheets 3 are clamped at both ends of the male seat connector shell by buckles 301 and are welded to the first circuit board 4, thereby fixing the male seat shell 1 to the first circuit board 4 and providing a grounding path to reduce the influence of electromagnetic interference on signal transmission.

[0032] As shown in Figure 3 and Figure 6 The male seat terminals 2 are divided into two groups and are mounted in the two rows of slots 101 of the male seat shell 1. Each male seat terminal 2 is integrally stamped and formed and comprises a first terminal body 201, a first contact arm 202 and a first solder leg 204. The first terminal body 201 has barbs on the side edges and is inserted into the first terminal mounting slots 102 at the bottom of the slots 101. The first contact arm 202 has two branches that extend from the side edges of the first terminal body 201 at the top of the first terminal body 201 towards the opening direction of the slots 101, and a contact protrusion 203 is formed at the end of the first contact arm 202. The contact protrusions 203 on the two first contact arms 202 are symmetrically arranged to better cooperate with the female seat terminals 7. The first solder leg 204 is located at the bottom of the first terminal body 201 and extends outward through the bottom of the male seat shell 1, so that the first solder leg 204 is exposed outside the male seat shell 1 and is used for welding with the first circuit board 4 to realize the transmission of electrical signals.

[0033] As shown in Figure 3 and Figure 5As shown, as a preferred embodiment, the female seat connector comprises a female seat shell 5, a floating base 6, a female seat grounding sheet 8, and a female seat terminal 7. The female seat shell 5 is the basic part of the female seat connector, and the main body is designed in a rectangular frame structure. A row of second terminal mounting grooves 501 are formed on the two inner side walls of the female seat shell 5, respectively, to isolate each female seat terminal 7 so that each female seat terminal 7 does not interfere with each other. The female seat shell 5 is provided with a sliding groove 502 at the left and right ends. Correspondingly, the floating base 6 is formed with a sliding block 604 at the two ends which is in sliding cooperation with the sliding groove 502. The floating base 6 is floatingly installed on the female seat shell 5 through the sliding block 604, so that the floating base 6 can be offset in the XY direction relative to the female seat shell 5 within a certain range. The floating base 6 is formed with two plug-in plates 601 which are matched with the two rows of plug-in grooves 101 in the male seat shell 1. A plurality of third terminal mounting grooves 602 are uniformly and spacedly arranged in the plug-in plate 601, and a through hole 603 is further formed in the side of the third terminal mounting groove 602. As shown in Figure 5 and Figure 8 As shown, the female seat grounding sheet 8 is arranged at the two ends of the female seat shell 5 and comprises a cover plate 801 and a fixed plate 802. The cover plate 801 covers the sliding groove 502 to prevent the floating base 6 from being pulled out of the female seat shell 5. The fixed plate 802 is outwardly extended from the two ends of the cover plate 801 and is vertically downwardly bent. The fixed plate 802 is provided with barbs on the side edges, and the fixed plate 802 is outwardly extended with a welding leg 803 at the end. The fixed plate 802 is embedded in the female seat shell 5 and is fixedly connected with the second circuit board 9 through the welding leg 803, so as to fix the female seat shell 5 and the second circuit board 9 and provide a grounding path to reduce the influence of electromagnetic interference on signal transmission.

[0034] The female seat terminal 7 is integrally and bently formed by an elastic metal sheet. As the main working part of the female seat connector, the female seat terminal 7 comprises a second contact arm 701, a second terminal main body 702, an elastic deformation part 703, and a second welding leg 704. The second contact arm 701 is located at the top of the second terminal main body 702. The second contact arm 701 and the second terminal main body 702 are inserted into the third terminal mounting groove 602 together, and the second contact arm 701 is outwardly expanded at the position corresponding to the through hole 603 to form two elastic contact surfaces.

[0035] Specifically, as shown in Figure 7As shown, the second contact arm 701 comprises a first elastic arm 705 and a second elastic arm 706 outwardly extended and reversely folded from the first elastic arm 705, and the elastic contact surface of the first elastic arm 705 is parallel to the elastic contact surface of the second elastic arm 706 with a certain distance. When the male connector is inserted into the female connector, the contact protrusion 203 on the two first contact arms 202 of the male terminal 2 can be in close contact with the elastic contact surface of the first elastic arm 705 and the elastic contact surface of the second elastic arm 706 respectively by the elastic force generated by elastic deformation, forming double-point contact and improving the reliability of terminal contact, and even if foreign matter is attached to one of the contact surfaces, the other contact surface can still maintain the electrical connection state. In addition, the head width of the second contact arm 701 is smaller than the distance between the two elastic contact surfaces, so that the second contact arm 701 of the female terminal 7 can be better inserted into the third terminal mounting groove 602.

[0036] The second terminal body 702 is formed by riveting and fixing the first elastic arm 705 and the second elastic arm 706, thereby greatly improving the structural strength of the female terminal 7. The elastic deformation part 703 is outwardly extended and bent from the bottom end of the second terminal body 702, and the structure of the elastic deformation part 703 can be any one of V-shaped, Z-shaped, U-shaped and S-shaped. The male connector and the female connector can relatively float in the XY direction, thereby reducing the connection failure caused by installation errors and mechanical impact or vibration. The second soldering leg 704 is outwardly extended and formed from the elastic deformation part 703, and the second soldering leg 704 is partially clamped on the second terminal mounting groove 501 on the inner wall of the female housing 5, and the end is exposed at the bottom of the female housing 5, for welding with the second circuit board 9, thereby realizing the transmission of electrical signals.

[0037] The above-described embodiments only express the implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A floating board-to-board connector assembly, comprising a male connector and a female connector detachably electrically connected with the male connector, characterized in that: the male connector comprises a male housing (1), two rows of slots (101) are arranged in parallel in the male housing (1), a plurality of male terminals (2) are uniformly and spacedly arranged in the slots (101), the male terminal (2) comprises a first terminal body (201) embedded in the male housing (1), two first contact arms (202) symmetrically arranged and extending towards the opening direction of the slot (101), and a first soldering leg (204) located at the bottom of the male housing (1) and extending outward for welding with a first circuit board (4); the female connector comprises a female housing (5), a floating base (6) floatingly installed in the female housing (5) and having double insertion boards (601), and a plurality of female terminals (7) matched with the male terminals (2), the female terminal (7) comprises a second terminal body (702) located in the insertion board (601), a second contact arm (701) located at the top of the second terminal body (702) and expanding to both sides of the insertion board (601) to form two elastic contact surfaces, an elastic deformation part (703) outwardly extended from the bottom end of the second terminal body (702) and bent, and a second soldering leg (704) outwardly extended from the elastic deformation part (703) and clamped on the female housing (5) for welding with a second circuit board (9); when the male connector is plugged with the female connector, the first contact arm (202) is in contact with the second contact arm (701) to achieve electrical connection.

2. The floating board-to-board connector assembly of claim 1, wherein: A plurality of first terminal mounting grooves (102) are also equally spacedly arranged in each row of slots (101), and the male terminal (2) is inserted in the first terminal mounting groove (102).

3. The floating board-to-board connector assembly of claim 1, wherein: The second contact arm (701) comprises a first elastic branch (705) and a second elastic branch (706) outwardly extended from the first elastic branch (705) and reversely bent, and the elastic contact surface of the first elastic branch (705) is parallel to the elastic contact surface of the second elastic branch (706) and spaced apart by a certain distance.

4. The floating board-to-board connector assembly of claim 3, wherein: The second terminal body (702) is formed by partially overlapping and riveting fixing of the first elastic branch (705) and the second elastic branch (706).

5. The floating board-to-board connector assembly of claim 3, wherein: The insertion board (601) is provided with a second terminal mounting groove (501), a through hole (603) is arranged at the side of the second terminal mounting groove (501), the second contact arm (701) is inserted in the mounting groove, and the first contact arm (202) can be electrically contacted through the through hole (603).

6. The floating board-to-board connector assembly of claim 5, wherein: The first contact arm (202) is provided with a contact protrusion (203) to better contact with the second contact arm (701).

7. The floating board-to-board connector assembly of claim 1, wherein: The structure of the elastic deformation part (703) can be any one of V-shaped, Z-shaped, U-shaped and S-shaped.

8. The floating board-to-board connector assembly of claim 1, wherein: The male seat connector further comprises a male seat grounding sheet (3) fixed by buckles (301) at both ends of the male seat connector shell and welded with the first circuit board (4).

9. The floating board-to-board connector assembly of claim 1, wherein: The female seat shell (5) is provided with a sliding groove (502) at the end, and both ends of the floating base (6) are formed with sliding blocks (604) which are in sliding fit with the sliding groove (502), and the floating base (6) is floatingly installed on the female seat shell (5) through the sliding blocks (604).

10. The floating board-to-board connector assembly of claim 9, wherein: The female seat connector further comprises a female seat grounding sheet (8) embedded at both ends of the female seat shell (5), covering the sliding groove (502) and welded with the second circuit board (9).

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