Flat combined type board-to-board connector

Abstract

The invention relates to the technical field of connectors, in particular to a flat combined board-to-board connector which comprises a first socket body and a plurality of second socket bodies, the first socket body is arranged on one side of a first PCB through a flitch, and the second socket bodies are clamped to the inner side of a second PCB. The first socket body is clamped with a plurality of first contact elastic sheets, and the second socket body is clamped with a plurality of second contact elastic sheets; the second contact elastic sheet comprises a main body, one side of the main body is provided with a contact part and an abutting part which are formed by multi-angle bending, the contact part comprises a clamping groove, the abutting part is located on one side of the clamping groove, the first contact elastic sheet is provided with a barb, the barb penetrates through and is clamped with the clamping groove, and the abutting part abuts against the barb; the first socket body and the second socket body are in elastic sheet type contact and are assembled together through the first contact elastic sheet and the second contact elastic sheet, and the first contact elastic sheet and the second contact elastic sheet are in mutual contact, so that the matching stability between the first socket body and the second socket body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a flat combined board-to-board connector. Background Art

[0002] Currently, board-to-board connectors are mainly applied in industries such as power systems, communication networks, financial manufacturing, elevators, industrial automation, medical equipment, office equipment, household appliances, and military manufacturing; they have the advantages of strong transmission ability and stable transmission ability; for traditional board-to-board connectors, a male socket and a female socket need to be cooperatively snapped together, the female socket is welded to a PCB board, the male socket is welded to another PCB board, and two connectors need to be designed to match one-to-one with each other, none of which can be missing, and they cannot be directly positioned on the PCB board, and the soldering process is also likely to cause the terminals of the connector to be offset. In an electronic connector, the P end and the R end usually represent two different ports or interfaces of the connector. This kind of identification is usually used to distinguish different functions or connection methods of the connector. Summary of the Invention

[0003] The purpose of the present invention is to provide a flat combined board-to-board connector to solve the problems mentioned in the above background art.

[0004] Technical solution of the present invention: A flat combined board-to-board connector includes a first socket body and a plurality of second socket bodies. The first socket body is arranged on one side of a first PCB board by means of pasting, the second socket body is snap-fitted inside a second PCB board, the first socket body is snap-fitted with a plurality of first contact elastic pieces, and the second socket body is snap-fitted with a plurality of second contact elastic pieces; the second contact elastic piece includes a main body, and one side of the main body is provided with a contact portion and an abutting portion formed by bending at multiple angles. The contact portion includes a card slot, the abutting portion is located on one side of the card slot, the first contact elastic piece is provided with a barb, the barb penetrates and is snap-fitted in the card slot, and the abutting portion abuts against the barb; the side of the abutting portion away from the card slot abuts against one side of the main body.

[0005] Preferably, the first contact elastic piece includes a first snap-fitting portion, and a plurality of first protrusions are arranged on both sides of the first snap-fitting portion; the first protrusions abut against the first socket body.

[0006] Preferably, the second contact elastic piece includes a second snap-fitting portion, and a plurality of second protrusions are arranged on both sides of the second snap-fitting portion; the second protrusions abut against the second socket body.

[0007] Preferably, snap-fitting arms are arranged on both sides of the second socket body, a snap-fitting groove corresponding to the snap-fitting arms is arranged on the first socket body, the snap-fitting arms are inserted into the snap-fitting groove, a convex bump is arranged on one side of the snap-fitting arms, and the convex bump abuts against the snap-fitting groove.

[0008] Preferably, a convex member is provided on one side of the buckle arm, and the convex member is snap-fitted into the buckle groove; bevel angles are provided on both sides of the convex member.

[0009] Preferably, a plurality of first positioning solder pads are provided on both sides of the first socket body where the first contact elastic piece is located, and the first positioning solder pads are used for soldering and connecting the first PCB board.

[0010] Preferably, a plurality of second positioning solder pads are provided on both sides of the second socket body where the second contact elastic piece is located, and the second positioning solder pads are used for soldering and connecting the second PCB board.

[0011] Preferably, the first contact elastic piece includes a first welding portion, and the first welding portion is connected to one side of the first PCB board; the second contact elastic piece includes a second welding portion, and the second welding portion is connected to one side of the second PCB board.

[0012] Preferably, the first contact elastic piece further includes a third snap-fitting portion; the third snap-fitting portion is snap-fitted into the first socket body, and a plurality of third protrusions are provided on both sides of the third snap-fitting portion, and the third protrusions abut against the first socket body.

[0013] Preferably, the second PCB board can be snap-fitted with a plurality of second socket bodies to be connected to a plurality of first socket bodies.

[0014] Compared with the prior art, the present invention provides a flat combined board-to-board connector, which has at least one of the following beneficial effects:

[0015] 1. A slot notch is designed at the contact portion of the first contact elastic piece, which has an anti-deformation structure, and the abutting portion abuts against the main body to further improve the anti-deformation ability and improve the stability of the first contact piece; the first socket body and the second socket body adopt a spring contact type, and are assembled together through the first contact elastic piece and the second contact elastic piece. The first contact elastic piece and the second contact elastic piece are in contact with each other, thereby forming a board-to-board connection. The first contact elastic piece and the second contact elastic piece are fixed by multiple snap-fittings, improving the connection stability between the first socket body and the second socket body;

[0016] 2. By snap-fitting the second socket body inside the second PCB board and setting it in a sunken plate structure, the overall height after assembly is reduced. The total height after combination is flat, does not occupy space, and expands the applicable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0018] Figure 1Isometric view of an embodiment of the present invention.

[0019] Figure 2 Cross-sectional view of an embodiment of the present invention.

[0020] Figure 3 Isometric view of the connection between the first socket body patch board and the first PCB board in an embodiment of the present invention.

[0021] Figure 4 Isometric view of the connection between the second socket body and the second PCB board by snap connection in an embodiment of the present invention.

[0022] Figure 5 Is Figure 4 Enlarged view in the direction A of

[0023] Figure 6 Schematic diagram of the connection between the first contact spring piece and the second contact spring piece in an embodiment of the present invention.

[0024] Figure 7 Schematic diagram of the connection between the second PCB board and multiple second socket bodies and the corresponding first socket bodies by snap connection in an embodiment of the present invention.

[0025] Reference numerals

[0026] 1 - First socket body; 11 - Snap groove; 12 - First positioning solder pad; 2 - Second socket body; 21 - Snap arm; 211 - Convex bump; 212 - Convex part; 213 - Oblique angle; 22 - Second positioning solder pad; 3 - First PCB board; 4 - Second PCB board; 5 - First contact spring piece; 51 - Barb; 52 - First snap joint; 521 - First protrusion; 53 - First welding part; 54 - Third snap joint; 541 - Third protrusion; 6 - Second contact spring piece; 61 - Body; 62 - Contact part; 621 - Card slot; 63 - Abutting part; 64 - Second snap joint; 641 - Second protrusion; 65 - Second welding part; Detailed implementation manners

[0027] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0028] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0029] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] It should be noted that the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0032] As Figures 1 to 6 shown, it includes a first socket body 1 and a plurality of second socket bodies 2. The first socket body 1 is arranged on one side of the first PCB board 3 through a patch board. The second socket body 2 is snap-fitted inside the second PCB board 4 and is arranged through a sunken board structure, reducing the overall height after assembly. The combined total height is flat and does not occupy space, expanding the scope of application. A plurality of first contact elastic pieces 5 are snap-fitted on the first socket body 1, and a plurality of second contact elastic pieces 6 are snap-fitted on the second socket body 2. The second contact elastic piece 6 includes a main body 61. One side of the main body 61 is provided with a contact portion 62 and an abutting portion 63 formed by bending at multiple angles. The contact portion 62 includes a card slot 621. The abutting portion 62 is located on one side of the card slot 621. The first contact elastic piece 5 is provided with a barb 51. The barb 51 penetrates and is snap-fitted into the card slot 621. The abutting portion 63 abuts against the barb 51. The side of the abutting portion 63 away from the card slot 621 abuts against one side of the main body 61. A card slot notch is designed at the contact portion of the first contact elastic piece 5 to prevent its deformation, and the abutting portion abuts against the main body 61 to further improve the anti-deformation ability and the stability of the first contact elastic piece 5. The first socket body 1 and the second socket body 2 are in elastic contact. They are assembled together through the first contact elastic piece 5 and the second contact elastic piece 6. The first contact elastic piece 5 and the second contact elastic piece 6 are in contact with each other, thereby forming a board-to-board connection. The first contact elastic piece 5 and the second contact elastic piece 6 are fixed by multi-card snap-fitting, improving the connection stability between the first socket body 1 and the second socket body 2.

[0033] The first contact elastic piece 5 includes a first clamping portion 52, and a plurality of first protrusions 521 are arranged on both sides of the first clamping portion 52; the first protrusions 521 abut against the first socket body 1; a plurality of first protrusions 521 are designed on both sides of the first clamping portion to abut and be fixed in the first socket body 1, so as to improve its insertion strength; the second contact elastic piece 6 includes a second clamping portion 64, and a plurality of second protrusions 641 are arranged on both sides of the second clamping portion 64; the second protrusions 641 abut against the second socket body 2; a plurality of second protrusions are designed on both sides of the second clamping portion to abut and be fixed in the second socket body 2, so as to improve its insertion strength; snap arms 21 are arranged on both sides of the second socket body 2, a snap groove 11 corresponding to the snap arms 21 is provided on the first socket body 1, the snap arms 21 are inserted into the snap groove 11, a convex bump 211 is arranged on one side of the snap arm 21, and the convex bump 211 abuts against the snap groove 11; a convex member 212 is arranged on one side of the snap arm 21, and the convex member 212 is clamped with the snap groove 11; chamfered corners 213 are arranged on both sides of the convex member 212, and it can be disassembled multiple times; after the convex member 212 is inserted into the snap groove 11 and moves towards the direction of the convex bump 211, the convex bump 211 abuts against one side of the snap groove 11, and the cooperation between the snap arm 21 and the snap groove 11 is more reliable. The inertial snap-type fixing and movable card slot fixing points are adopted to improve the reliability of the connection between the second socket body 2 and the first socket body 1.

[0034] A plurality of first positioning solder pads 12 are arranged on both sides of the first socket body 1 where the first contact elastic piece 5 is located, and the first positioning solder pads 12 are used for welding and connecting the first PCB board 3; a plurality of second positioning solder pads 22 are arranged on both sides of the second socket body 2 where the second contact elastic piece 6 is located, and the second positioning solder pads 22 are used for welding and connecting the second PCB board 4; the first contact elastic piece 5 includes a first welding portion 53, and the first welding portion 53 is connected to one side of the first PCB board 3; the second contact elastic piece 6 includes a second welding portion 65, and the second welding portion 65 is connected to one side of the second PCB board 4; the first contact elastic piece 5 further includes a third clamping portion 54; the third clamping portion 54 is clamped in the first socket body 1, and a plurality of third protrusions 541 are arranged on both sides of the third clamping portion 54, and the third protrusions 541 abut against the first socket body 1.

[0035] As Figure 7 shown, the second PCB board 4 can be clamped with a plurality of second socket bodies 2 and connected to a plurality of first socket bodies 1; the second socket body 2 and the second PCB board 4 are assembled into an integral part, which can reduce the assembly process and realize rapid assembly; this connector belongs to a combined board-to-board connector, and multiple types can be combined horizontally according to actual use conditions to meet various requirements.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A flat modular board-to-board connector, characterized in that: It includes a first socket body and a plurality of second socket bodies. The first socket body is disposed on one side of the first PCB board through a patch board. The second socket bodies are snap-connected to the inner side of the second PCB board. A plurality of first contact elastic pieces are snap-connected to the first socket body, and a plurality of second contact elastic pieces are snap-connected to the second socket bodies. The second contact elastic piece includes a main body. One side of the main body is provided with a contact portion and an abutting portion formed by bending at multiple angles. The contact portion includes a card slot, and the abutting portion is located on one side of the card slot. The first contact elastic piece is provided with a barb, and the barb penetrates and is snap-connected to the card slot, and the abutting portion abuts against the barb. The side of the abutting portion away from the card slot abuts against one side of the main body.

2. The flat combined board-to-board connector according to claim 1, wherein: The first contact elastic piece includes a first snap-connection portion, and a plurality of first protrusions are provided on both sides of the first snap-connection portion. The first protrusions abut against the first socket body.

3. The flat combination board-to-board connector according to claim 1, wherein: The second contact elastic piece includes a second snap-connection portion, and a plurality of second protrusions are provided on both sides of the second snap-connection portion. The second protrusions abut against the second socket body.

4. The flat combined board-to-board connector according to claim 1, wherein: Snap arms are provided on both sides of the second socket body, and a snap groove corresponding to the snap arms is provided on the first socket body. The snap arms are inserted into the snap groove. A convex bump is provided on one side of the snap arm, and the convex bump abuts against the snap groove.

5. The flat combination board-to-board connector according to claim 4, characterized in that: A convex member is provided on one side of the snap arm, and the convex member is snap-connected to the snap groove. Oblique angles are provided on both sides of the convex member.

6. The flat combined board-to-board connector according to claim 1, characterized in that: A plurality of first positioning welding pads are provided on both sides of the first socket body where the first contact elastic pieces are located, and the first positioning welding pads are used for welding and connecting to the first PCB board.

7. The flat combined board-to-board connector according to claim 1, characterized in that: A plurality of second positioning welding pads are provided on both sides of the second socket body where the second contact elastic pieces are located, and the second positioning welding pads are used for welding and connecting to the second PCB board.

8. The flat combined board-to-board connector according to claim 1, characterized in that: The first contact elastic piece includes a first welding portion, and the first welding portion is connected to one side of the first PCB board. The second contact elastic piece includes a second welding portion, and the second welding portion is connected to one side of the second PCB board.

9. The flat combined board-to-board connector according to claim 1, wherein: The first contact elastic piece further includes a third snap-connection portion. The third snap-connection portion is snap-connected inside the first socket body. A plurality of third protrusions are provided on both sides of the third snap-connection portion, and the third protrusions abut against the first socket body.

10. The flat combined board-to-board connector according to claim 1, wherein: A plurality of second socket bodies can be snap-connected to the second PCB board and connected to a plurality of first socket bodies.

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