CN217934296U

CN217934296U - Board-to-board connector

Info

Publication number: CN217934296U
Application number: CN202221689296.9U
Authority: CN
Inventors: 何鎏; 何盛辉; 刘奇祥
Original assignee: Shenzhen Direction Electronics Co ltd
Current assignee: Shenzhen Direction Electronics Co ltd
Priority date: 2022-07-02
Filing date: 2022-07-02
Publication date: 2022-11-29
Anticipated expiration: 2032-07-02

Abstract

The utility model relates to the technical field, a board to board connector is disclosed, it includes the holding piece of picture peg spare adaptation and another PCB board of a PCB board and holding piece adaptation of picture peg spare adaptation, picture peg spare includes the portion of inserting and locates a plurality of contacts of the portion of inserting, the holding piece is including the portion of inserting and locate a plurality of terminals of the portion of inserting, during the holding piece of picture peg spare adaptation, a plurality of corresponding terminals are connected to a plurality of contacts, so that a PCB board and another PCB board form the route, through aforementioned structure, the technical problem that the perk was avoided in moulding has been solved, the effect that has promoted yield and convenient to use has been reached.

Description

Board-to-board connector

Technical Field

The utility model belongs to the technical field of the electronic technology and specifically relates to indicate and disclose a board to board connector.

Background

The board-to-board (BTB) connector of the prior art is composed of a male connector and a female connector which are matched with each other, and because the BTB connector has a very small volume and the contact terminals are densely distributed in the glue, the BTB connector is usually formed by embedding the terminals into a mold and performing injection molding and curing in the manufacturing process. Because the terminals are densely distributed on the extremely small colloid, the difficulty is brought to the industry in the aspects of forming and improving the yield of the products.

Disclosure of Invention

In order to solve the above technical problem, a main object of the present invention is to provide a board-to-board connector.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a board-to-board connector comprises a board inserting piece, a containing piece matched with the board inserting piece, and a PCB (printed circuit board) matched with the board inserting piece and the containing piece respectively, wherein the board inserting piece comprises an inserting part and a plurality of contact pieces, one side of the inserting part, which is far away from the PCB, is provided with an inserting part groove, a tongue part is formed in the inserting part groove, the tongue part is spaced from the peripheral side walls of the inserting part groove, and contact piece grooves matched with the plurality of contact pieces are distributed in the two side walls of the tongue part; the holding part comprises a holding part and a plurality of terminals, one side of the holding part, which is far away from the PCB, is provided with a holding part groove for the tongue part to be matched, a plurality of terminal grooves which are opposite to the contact part grooves are distributed on the groove wall of the holding part groove, and the terminals are respectively arranged in the corresponding terminal grooves.

In the present embodiment, it is preferable that: the picture peg spare includes that the portion of inserting both ends are equipped with the solid groove of portion of inserting of portion firmware and adaptation portion of inserting firmware respectively, and the portion of inserting firmware has the portion of inserting xarm, and the portion of inserting cross arm lower limb downwardly extending has a portion of inserting transition portion, and two sides of portion of inserting transition portion are equipped with the portion of inserting barb of interfering with the solid groove of portion of inserting respectively, and it has the portion of inserting paster that supplies a circuit board welded to buckle to the outside in portion of inserting transition portion, and the portion of inserting paster has the fluting that eats the tin structure.

In this embodiment, it is preferable that: and positioning columns are respectively arranged at two ends of the inserting part, and are respectively inserted into the grooves of the inserting part when the inserting plate part is matched with the accommodating part for insertion.

In this embodiment, it is preferable that: the holding part is still including putting the portion's fixed slot that portion both ends were equipped with portion firmware and adaptation portion firmware respectively, and portion's firmware has the portion's xarm with portion's fixed slot adaptation, and portion's xarm lower limb downwardly extending has a portion transition portion, and portion transition portion two sides are equipped with respectively and put the portion barb of portion fixed slot interference, and it has the portion paster that supplies another circuit board welded to buckle to the outside in portion transition portion, and portion's paster has the fluting of tin eating structure.

Compared with the prior art, the utility model, its profitable effect:

firstly, through the hollow-out grooves, the warping caused by heat change in the manufacturing process is avoided, so that the yield of the product is improved; secondly, guide when making picture peg spare and holding piece adaptation through the reference column, effectively made things convenient for the use.

Drawings

Fig. 1 is a schematic view of a state of use of the electrical connection member of the present embodiment.

Fig. 2 is another perspective view of the interposer member of fig. 1.

Figure 3 is an exploded view of the gusset of figure 2 (not including the receptacle gusset).

Figure 4 is an enlarged schematic view at D of the contact of figure 3.

FIG. 5 is a perspective view of the insert gusset of FIG. 2.

Fig. 6 is a schematic view of the container shown in fig. 1 from another perspective.

Fig. 7 is an exploded view of the receptacle of fig. 6 (not including the deployment plate).

Fig. 8 is an enlarged schematic view at a terminal E in fig. 7.

Figure 9 is a perspective view of the mid-section pinch plate of figure 6.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and rear are used to explain the structure and movement of the various components of the present invention not absolutely, but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

In the present embodiment, as shown in fig. 1, there is provided a board-to-board connector including a fork-plate member 10 and a receiving member 20 adapted to the fork-plate member 10, wherein: the board-inserting part 10 is adapted to one PCB board (not labeled) and the receiving part 20 is adapted to another PCB board (not labeled). The inserting plate member 10 has an inserting portion 11, the accommodating member 20 has a portion adapted to the inserting portion, and the inserting portion and the portion are inserted to realize electrical connection between one PCB and another PCB. Of course, a setting portion may be provided on the board inserting member 10, and an inserting portion is provided on the accommodating member 20, so as to realize the inserting and matching between the board inserting member 10 and the accommodating member 20, and the specific setting manner may be set according to the actual situation. The plug portion of the plug member 10 and the receiving portion of the receiving member 20 are provided with conductive members (e.g. including electrical contacts, hereinafter referred to as "contacts" and electrical terminals, hereinafter referred to as "terminals"), which are distinguished by names in different components, and are made of materials, functions and assembly principles which are basically the same, and are generally made of stamped metal sheets, metal strips and the like. One end of the contact piece and the terminal is used for being electrically connected with a welding spot, an interface and the like of the PCB, and the other end of the contact piece and the terminal is provided with a contact bump which can be electrically contacted with the other side when the plug board piece 10 and the accommodating piece 20 are plugged so as to realize the electrical conduction of the whole board to the board connector.

In the present embodiment, as shown in fig. 2 and 3, the board member 10 includes a plurality of contacts 12 and socket fasteners 14 fixed by the socket 11, the socket 11 is a horizontally long insulating member, a socket groove 111 is formed on a side of the socket 11 away from the PCB, a tongue 112 protrudes from the socket groove 111, and the tongue 112 is higher than and spaced apart from the peripheral side wall of the socket groove 111. The tongue 112 has two opposite long side walls with contact grooves 1121 corresponding to the number of contacts, and a plurality of contacts 12 are respectively fitted in the corresponding contact grooves 1121.

In the present embodiment, as shown in fig. 2, 3 and 5, two opposite long side outer walls of the insertion portion 11 are respectively provided with an insertion portion concave portion 113 adapted to the insertion portion fastening plate 13, the insertion portion fastening plate 13 has a flat surface (not labeled) and an elastic fastening piece 131 having a flat surface perpendicular to the flat surface and opposite to the insertion portion concave portion 113, and the insertion portion fastening plate 13 is fastened above the insertion portion 11. In this embodiment, the inserting portion fastening plate 13 and the placing portion fastening plate 23 are the same component and are equivalent to a fixture for installation (i.e. not belonging to the necessary component of this embodiment), which is convenient for installation by an automatic machine or a manual suction device to adsorb the flat surface of the fastening plate when the inserting portion 10 or the accommodating portion 20 is installed on the corresponding PCB. In this embodiment, the inserting portion buckling plate 13 and the placing portion buckling plate 23 need to be removed before the inserting plate 10 is matched with the accommodating member 20, and the

buckling plates

13 and 23 are not described again because they are non-electrical functional components.

In the present embodiment, as shown in fig. 2, 3 and 5, the two ends of the inserting portion 11 are respectively provided with an inserting portion fixing groove 114 adapted to the inserting portion fixing member 14, so as to fix the board inserting member 10 on a PCB.

In the present embodiment, as shown in fig. 3, the shape of the insertion portion 11 is substantially a long structure, but the shape is not limited to the long structure. The insertion groove 111 is an elongated groove, and the tongue 112 has a substantially rectangular parallelepiped shape. A plurality of contact grooves 1121 are distributed on two opposite side walls of the tongue portion 112, the contact grooves 1121 extend from bottom to top, contact groove partitions 1123 extending to the left or right are arranged on the side walls of two adjacent contact grooves 1121, a plurality of contacts 12 are arranged in rows in the corresponding contact grooves 1121, and the ends of the contacts 12 can be used for being welded with the PCB board 30. Air grooves are respectively arranged at two opposite sides of the contact groove 1121, so that the impedance performance can be effectively improved. The middle of the top end of the tongue portion 112 is provided with a plurality of hollow grooves 1122 arranged at intervals, and the arrangement of the hollow grooves 1122 can improve the flatness of the tongue portion 112, and can also make the tongue portion 112 stable in structure and not easy to deform.

In the present embodiment, as shown in fig. 3 and 4, a plurality of contacts 12 are respectively fixed in corresponding contact slots 1121, each contact 12 has a contact foot 121 extending downward from the tongue 112, the contact foot 121 is connected to a contact fixing section 122 vertically connected to the contact slot 1121, the contact foot 121 and the contact fixing section 122 are connected through a contact transition section 1211, and the contact transition section 1211 is a multi-section inclined bent structure and is used for improving flatness by providing the contact transition section 1211. The haptic fixed section 122 is provided with haptic clamping points 1221 extending to opposite sides and bosses extending to the front and rear sides near the haptic transition section 1211, so that a holding force is provided by a double-clamping-point and double-boss structure. An air slot is formed in the contact slot 1121, and the air slot is located at the contact clamping point 1221, and since the impedance of the contact clamping point 1221 is low due to the fact that the air slot is wider, the impedance of the contact clamping point needs to be increased, so that the impedance performance is improved by increasing the air slot (increasing the air slot is equivalent to reducing the dielectric constant around the terminal). The stationary contact section 122 has a contact section 123 distal to the contact transition section 1211, and the width of the stationary contact section 122 is smaller than the width of the contact section 123 and the width of the contact transition section 1211, respectively. The contact fixing section 122 is a mating region, and impedance of the mating region of the connector is usually lower, so that the region is narrowed, which is beneficial to improving impedance, and simultaneously improving performances such as insertion loss and return loss of the connector. By making the contact section 123 wide, reliable contact for terminal mating is facilitated. One end of the contact groove 1121, which is close to the contact pin 121, is set to be a slope structure, which can effectively improve the insertion efficiency and improve the glue scraping. A U-shaped groove is provided at the bottom of the tongue 112, and is located between the two rows of contact grooves 1121. By arranging the U-shaped slot between the two rows of contact slots 1121 as an air slot, the dielectric constant is reduced, and crosstalk performance is improved. The contact foot 121, contact transition section 1211, contact fixation section 122 and contact section 123 are integrally formed, thereby making contact 12 easy to cast or punch form.

In the embodiment, as shown in fig. 3, the plug-in part fastener 14 is fitted into the plug-in part fixing groove 114 and has a plug-in part cross arm 141, a plug-in part transition part 142 is extended downward from the lower edge of the plug-in part cross arm 141, and plug-in part barbs 1421 interfering with the plug-in part fixing groove 114 are respectively disposed on two sides of the plug-in part transition part 142, so as to facilitate the tight fixation of the plug-in part fastener 14 and the plug-in part fixing groove 114; an inserting part patch 143 for providing circuit board welding fixation is bent outwards on the inserting part transition part 142, and the inserting part patch 143 is provided with a groove with a tin-plated structure. The two ends of the inserting portion 11 are further respectively provided with the positioning columns 115, when the inserting plate member 1 is inserted into the accommodating member 2, the two positioning columns 115 are respectively inserted into the accommodating portion groove 211 of the accommodating portion 21, the positioning columns not only can play a role in positioning and guiding, but also can enable the inserting plate member 1 to be better fixed in the accommodating member 2, and therefore installation stability of work is improved, and stability of connection of the inserting plate member 1 and the accommodating member 2 is improved.

In this embodiment, as shown in fig. 5, the receiving member 2 includes a portion 21 and a plurality of terminals 22, a portion clip 23 and a portion fastener 24, the portion 21 is also an elongated insulating member with respect to the inserting portion 11, a portion recess 211 is formed on a side of the portion 21 away from the PCB, terminal slots 2111 (corresponding to the plurality of contact slots) are spaced on a wall of the portion recess 211, and the plurality of terminals 22 are respectively mounted in the corresponding terminal slots 2111. Two outer side walls of the setting part 21 are respectively provided with two setting part catching grooves 212, the setting part catching plate 23 is provided with four oppositely arranged setting part clamping feet 231, and the setting part catching plate 23 is installed on the setting part 21, so that the setting part clamping feet 231 are in adaptive clamping connection with the corresponding setting part catching grooves 212. Both ends of the portion 21 are respectively provided with a portion fixing groove 213 for fitting the portion fixing member 24, and the accommodating member 2 is fixed on the PCB board by the portion fixing member 24.

In this embodiment, as shown in fig. 6, the portion 21 is the shape of the mating and inserting portion 11, the portion groove 211 is fitted with the tongue portion 112, and the two inner side walls are provided with a plurality of terminal grooves 2111 distributed at intervals, the terminal grooves 2111 extend from bottom to top, the terminals 22 are arranged in rows in the corresponding terminal grooves 2111, the terminals 22 can be welded to the PCB board 30 at the ends, the two sides of the portion groove 211 are respectively provided with a hollow groove, the hollow grooves can not only improve the flatness of the portion 21, but also stabilize the portion 21 and prevent deformation. Grounding strips 25 are respectively arranged in the groove walls on the two sides of the placing part 21, and the resonance of the connector is reduced by arranging the grounding strips 25, so that the overall electrical performance of the connector is improved.

In this embodiment, as shown in fig. 6 and 8, a plurality of terminals 22 are respectively fixed in the corresponding terminal slots 2111, each terminal 22 has a terminal pin 221 extending out of the corresponding portion of the recess 211, the terminal pin 221 is vertically connected to the terminal fixing section 222 installed in the terminal slot 2111, the terminal pin 221 and the terminal fixing section 222 are connected through a terminal transition section 2211, the terminal transition section 2211 is a multi-section inclined bending structure, the terminal transition section 2211 is provided for improving flatness, terminal locking points 2221 extending towards two sides and bosses extending towards the front and rear sides are arranged at the terminal fixing section 222 near the terminal transition section 2211, and a holding force is provided through the structure of double locking points and double bosses. The terminal contact 223 is connected to an end of the terminal fixing section 222 away from the terminal transition section 2211, and the terminal contact 223 has a convex structure protruding in a direction away from the terminal pin 221. The terminal pin 221, the terminal transition section 2211, the terminal fixing section 222 and the terminal contact 223 are integrally formed, thereby making it easy to cast or punch the terminal 22.

In the present embodiment, as shown in fig. 6 and 7, both ends of the portion 21 are respectively provided with a portion fixing groove 213, the portion fastener 24 is fitted into the portion fixing groove 213 and has a portion crossbar 241 matching with the portion fixing groove 213, a portion transition portion 242 extends downwards from the lower edge of the portion crossbar 241, and two sides of the portion transition portion 242 are respectively provided with a portion barb 2421 interfering with the portion fixing groove 213, so as to tightly fix the portion fastener 24 and the portion fixing groove 213; a placing part paster 243 for welding another circuit board is bent outwards from the placing part transition part 242, and the placing part paster 243 is provided with a groove with a tin-plated structure.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a board to board connector, including picture peg spare and with the holding piece of picture peg spare adaptation and picture peg spare and the PCB board respectively of holding piece adaptation, its characterized in that: the plug board piece comprises a plug part and a plurality of contact pieces, wherein a plug part groove is formed in one side of the plug part, which is far away from the PCB, a tongue part is formed in the plug part groove, the tongue part is spaced from the side walls of the periphery of the plug part groove, contact piece grooves for the plurality of contact pieces to adapt are distributed in the two side walls of the tongue part, each contact piece comprises a contact piece foot extending outwards from the tongue part, each contact piece foot is perpendicular to a connected contact piece fixing section positioned in each contact piece groove, a contact piece contact section is arranged at one end, which is far away from each contact piece foot, of each contact piece fixing section, and each contact piece fixing section is provided with a contact piece clamping point extending towards two sides and a boss extending towards the front side and the back side close to each contact piece foot; the holding part comprises a holding part and a plurality of terminals, one side of the holding part, which is far away from the PCB, is provided with a holding part groove for the tongue part to be matched, a plurality of terminal grooves which are opposite to the contact part grooves are distributed on the groove wall of the holding part groove, and the terminals are respectively arranged in the corresponding terminal grooves.

2. The board-to-board connector according to claim 1, wherein: the picture peg spare is equipped with the inserting portion solid groove of inserting portion firmware and adaptation inserting portion firmware respectively including inserting portion both ends, and the inserting portion firmware has the inserting portion xarm, and the inserting portion xarm lower limb downwardly extending has inserting portion transition portion, and two sides of inserting portion transition portion are equipped with the inserting portion barb of interfering with the inserting portion solid groove respectively, and it has the inserting portion paster that supplies a circuit board welded to buckle to the outside in inserting portion transition portion, and the inserting portion paster has the fluting of eating the tin structure.

3. The board-to-board connector according to claim 2, wherein: positioning columns are arranged at two ends of the inserting part respectively, and when the inserting plate piece is matched with the accommodating piece to be inserted, the positioning columns are inserted into the grooves of the inserting part respectively.

4. The board-to-board connector according to claim 3, wherein: the holding part is still including putting the portion fixed slot that portion both ends were equipped with portion firmware and adaptation portion firmware respectively, and portion firmware has the portion xarm with portion fixed slot adaptation, and portion xarm lower limb downwardly extending has a portion transition portion, and portion transition portion both sides are equipped with respectively and put the portion barb of portion fixed slot interference, and it has the portion paster of the portion that supplies another circuit board welded to buckle to the outside in portion transition portion, and portion paster has the fluting that eats the tin structure.