Socket installed below PCB

Abstract

The utility model discloses a socket installed below a PCB, which comprises a rubber core, a terminal, a cover and a copper column which are arranged below the PCB, the terminal is arranged to be in six-surface contact, and the six-surface contact terminal comprises a first contact surface, a second contact surface, a third contact surface, a fourth contact surface, a fifth contact surface and a sixth contact surface. The pin comprises a plug-in side surface, a plug-in front surface and a plug-in back surface, the first contact surface abuts against the fourth contact surface and the plug-in side surface, the second contact surface, the third contact surface and the fifth contact surface, and the sixth contact surface abuts against the plug-in front surface and the plug-in back surface; according to the utility model, the board arrangement space above the PCB can be reduced by installing the terminal on the lower part of the PCB, the six-surface contact structure terminal can tightly wrap the contact pin which is plugged with the terminal so as to output a relatively large plugging force, and meanwhile, the copper column is assembled from top to bottom and is hung on the rubber core after being welded, so that the reliable quality can be ensured, and the whole product cannot fall off from the PCB.

Description

TECHNICAL FIELD

[0001] The utility model relates to socket device technical field, specifically, relate to a socket installed below the PCB. BACKGROUND

[0002] In order to shorten the product development and production cycle, many electronic and electrical equipment of existing all adopt the design scheme of modularization, that is, the various functions of electronic and electrical appliances are designed into a module, then each module is assembled to the mainboard, this can make each module design and production at the same time, finally can greatly shorten the development and production cycle of the whole equipment, provides favorable conditions for new product listing.

[0003] Modular design has many advantages, but it has higher requirements for welding process, especially welding cost, the minimum cost welding mode is one-time wave soldering or one-time reflow soldering, to meet this requirement, the whole component layout must be in one direction, that is, all component welding pins must be in one direction, if the space on the PCB is limited, the layout will become a difficult problem for engineers. SUMMARY

[0004] In view of the above technical problems in the related art, the utility model provides a socket installed below the PCB, which can overcome the above shortcomings of the prior art.

[0005] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0006] A socket installed below the PCB;

[0007] The socket installed below the PCB includes a glue core, a terminal, a cover and a copper column arranged below the PCB, the terminal and the corresponding plug-in part of the pin are provided as six surface contacts, the terminal of the six surface contacts includes a horn mouth surrounded by a first contact surface, a second contact surface, a third contact surface, a fourth contact surface, a fifth contact surface and a sixth contact surface, the pin includes a plug-in side surface, a plug-in front surface and a plug-in back surface, the first contact surface abuts with the fourth contact surface and the plug-in side surface, and the second contact surface, the third contact surface, the fifth contact surface, the sixth contact surface, the plug-in front surface and the plug-in back surface abut.

[0008] Further, the terminal is provided with a first plug-in opening and a second plug-in opening corresponding to the pin, the third contact surface and the first plug-in opening are connected through a first connecting arm and a second connecting arm, and the sixth contact surface and the second plug-in opening are connected through a third connecting arm and a fourth connecting arm.

[0009] Further, the terminal comprises a terminal first area and a terminal second area, and the rubber core is provided with a rubber core terminal insertion hole first area and a rubber core terminal insertion hole second area corresponding to the terminal first area and the terminal second area; the terminal and the rubber core are respectively provided with a corresponding terminal limiting plane and a rubber core limiting plane.

[0010] Further, the rubber core terminal insertion hole first area and the rubber core terminal insertion hole second area are respectively provided with a rubber core terminal insertion hole first guide area and a rubber core terminal insertion hole second guide area facilitating the insertion of the terminal, and the rubber core terminal insertion hole first guide area and the rubber core terminal insertion hole second guide area are all provided with chamfers.

[0011] Further, the terminal comprises a terminal pin tail, and the rubber core terminal insertion hole second area is provided below with a rubber core terminal pin tail positioning area for wrapping the terminal pin tail.

[0012] Further, the cover is provided with a cover hot melting hole, the rubber core is provided with a rubber core hot melting column corresponding to the cover hot melting hole, and the cover and the rubber core are respectively provided with a corresponding cover limiting plane and a rubber core cover limiting plane.

[0013] Further, the rubber core and the cover are respectively provided with a rubber core anti-reverse block and a cover anti-reverse groove preventing reverse installation, and the rubber core and the cover are respectively further provided with a rubber core hot melting column and a cover hot melting block for hot melting.

[0014] Further, the rubber core is provided with a rubber core copper column hole for mounting the copper column, and the rubber core and the copper column are respectively provided with a rubber core copper column limiting plane and a copper column limiting plane.

[0015] Further, the copper column is provided with a plurality of copper column clamping points in interference fit with the rubber core copper column hole.

[0016] Further, the side wall of the rubber core is provided with a plurality of rubber core reinforcing ribs.

[0017] The utility model discloses the beneficial effect: through the optimization improvement design of the utility model product, make it install below the PCB board, can greatly reduce the board space above the PCB board, wherein the terminal is six face contact structure, can be tightly wrapped with the needle of opposite plug, thereby can output larger plug -in force, in addition, the copper column is assembled in the both sides of rubber core, when it is inserted to the PCB and finally same terminal is welded to the PCB board, the welding strength of whole product will get greatly improved, simultaneously, because the copper column is assembled from top to bottom, it will hang on the rubber core after welding, thereby can guarantee quality reliable, make whole product unable to fall off from the PCB board. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 is a first perspective exploded view of a socket mounted below a PCB according to an embodiment of the present application;

[0020] Figure 2 is a state diagram of a socket mounted below a PCB according to an embodiment of the present application;

[0021] Figure 3 is a second perspective exploded view of a socket mounted below a PCB according to an embodiment of the present application;

[0022] Figure 4 is a third perspective exploded view of a socket mounted below a PCB according to an embodiment of the present application; Figure 3 is a partial enlarged view of A in FIG. 5;

[0023] Figure 5 is a third perspective exploded view of a socket mounted below a PCB according to an embodiment of the present application;

[0024] Figure 6 is a sectional view of a socket mounted below a PCB according to an embodiment of the present application;

[0025] Figure 7 is a fourth perspective exploded view of a socket mounted below a PCB according to an embodiment of the present application;

[0026] In the figure: 1, glue core; 2, copper column; 3, terminal; 4, cover; 5, PCB board; 6, first pair of sockets; 7, second pair of sockets; 8, first contact surface; 9, second contact surface; 10, third contact surface; 11, fourth contact surface; 12, fifth contact surface; 13, sixth contact surface; 14, horn; 15, first connecting arm; 16, second connecting arm; 17, third connecting arm; 18, fourth connecting arm; 19, first force arm; 20, second force arm; 21, third force arm; 22, fourth force arm; 23, pin; 24, socket side; 25, socket front; 26, socket back; 27, terminal limiting plane; 28, terminal area one; 29, terminal area two; 30, terminal pin tail; 31, glue core limiting plane; 32, glue core terminal socket first guide area; 33, glue core terminal socket second guide area; 34, glue core terminal socket area one; 35, glue core terminal socket area two; 36, glue core terminal pin tail positioning area; 37, glue core copper column hole; 38, glue core copper column limiting surface; 39, glue core reinforcing rib; 40, glue core hot melting column; 41, glue core cover limiting surface; 42, glue core anti-fool block; 43, glue core groove; 44, copper column clamping point; 45, copper column limiting surface; 46, cover hot melting block; 47, cover hot melting hole; 48, cover limiting surface; 49, cover anti-fool groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0028] It should be understood that, in the description of the embodiments of the present application, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "several" is two or more, unless otherwise explicitly specified.

[0029] As Figures 1-6 shown, a socket mounted below a PCB according to an embodiment of the present application, comprising a glue core 1, a terminal 3, a cover 4 and a copper column 2 arranged below a PCB 5, the terminal 3 and the corresponding plug-in part of the pin 23 are arranged as six-surface contact, the terminal 3 of the six-surface contact comprises a horn mouth 14 enclosed by a first contact surface 8, a second contact surface 9, a third contact surface 10, a fourth contact surface 11, a fifth contact surface 12 and a sixth contact surface 13, the pin 23 comprises a plug-in side surface 24, a plug-in front surface 25 and a plug-in back surface 26, the first contact surface 8 abuts with the fourth contact surface 11 and the plug-in side surface 24, and the second contact surface 9, the third contact surface 10, the fifth contact surface 12, the sixth contact surface 13, the plug-in front surface 25 and the plug-in back surface 26 abut.

[0030] In a specific embodiment, the terminal 3 is provided with a first plug-in hole 6 and a second plug-in hole 7 corresponding to the pin 23, the third contact surface 10 is connected to the first plug-in hole 6 through a first connecting arm 15 and a second connecting arm 16, and the sixth contact surface 13 is connected to the second plug-in hole 7 through a third connecting arm 17 and a fourth connecting arm 18.

[0031] In a specific embodiment, the terminal 3 comprises a terminal area 28 and a terminal area 29, the glue core 1 is provided with a glue core terminal insertion hole area 34 and a glue core terminal insertion hole area 35 corresponding to the terminal area 28 and the terminal area 29, and the terminal 3 and the glue core 1 are respectively provided with a terminal limiting plane 27 and a glue core limiting plane 31.

[0032] In a specific embodiment, the glue core terminal insertion hole area 34 and the glue core terminal insertion hole area 35 are respectively provided with a glue core terminal insertion hole first guide area 32 and a glue core terminal insertion hole second guide area 33 above them, which are convenient for the insertion of the terminal 3, and the glue core terminal insertion hole first guide area 32 and the glue core terminal insertion hole second guide area 33 are respectively provided with chamfers around them.

[0033] In a specific embodiment, the terminal 3 comprises a terminal pin tail 30, and the glue core terminal insertion hole area 35 is provided with a glue core terminal pin tail positioning area 36 below it for wrapping the terminal pin tail 30 around.

[0034] The utility model discloses a socket mounted below the PCB, in a specific embodiment, the lid 4 is equipped with lid hot melt hole 47, the glue core 1 is equipped with the glue core hot melt column 40 of being suitable with lid hot melt hole 47, the lid 4 and the glue core 1 are equipped with corresponding lid limiting surface 48 and glue core lid limiting surface 41 respectively.

[0035] The utility model discloses a socket mounted below the PCB, in a specific embodiment, the glue core 1 and the lid 4 are equipped with glue core foolproof block 42 and lid foolproof groove 49 respectively to prevent being installed reversely, and the glue core 1 and the lid 4 are also equipped with glue core hot melt column 40 and lid hot melt block 46 respectively for hot melting.

[0036] The utility model discloses a socket mounted below the PCB, in a specific embodiment, the glue core 1 is equipped with glue core copper column hole 37 for installing the copper column 2, and the glue core 1 and the copper column 2 are equipped with glue core copper column limiting surface 38 and copper column limiting surface 45 respectively.

[0037] The utility model discloses a socket mounted below the PCB, in a specific embodiment, the copper column 2 is equipped with a plurality of copper column clamping points 44 in interference fit with the glue core copper column hole 37.

[0038] The utility model discloses a socket mounted below the PCB, in a specific embodiment, the side wall of the glue core 1 is equipped with a plurality of glue core reinforcing ribs 39.

[0039] In order to facilitate the above-mentioned technical scheme of the utility model to understand, the above-mentioned technical scheme of the utility model is explained in detail below through specific use mode.

[0040] In specific use, according to the socket mounted below the PCB of the utility model, including glue core 1, terminal 3, lid 4 and copper column 2, terminal 3 is six surface contact, wherein the first contact surface 8 is contacted with the fourth contact surface 11 and the opposite plug side surface 24, the second contact surface 9, the third contact surface 10 and the fifth contact surface 12, the sixth contact surface 13 and the opposite plug front surface 25 and the opposite plug back surface 26 are contacted, and six contact surfaces enclose the plug pin 23 contacted with the opposite plug and are contacted in full-enclosing mode, under the joint action of six contact surfaces, its contact is very stable, and can output larger plug-in and plug-out force.

[0041] To ensure the high plug-in life of the third contact surface 10 and the sixth contact surface 13 and the deformation of the spring piece caused by the multiple plug-in or skew plug-in, the third contact surface 10 is connected with the first pair of sockets 6 through the first connecting arm 15 and the second connecting arm 16 and the sixth contact surface 13 is connected with the second pair of sockets 7 through the third connecting arm 17 and the fourth connecting arm 18, so as to be integrated, and after being integrated, when the pin 23 is inserted into the trumpet mouth 14, it first contacts the third contact surface 10 and the sixth contact surface 13, at this time, the roots of the first force arm 19, the second force arm 20, the third force arm 21, the fourth force arm 22, the first connecting arm 15, the second connecting arm 16, the third connecting arm 17 and the fourth connecting arm 18 all generate a large elastic force at the same time, under the action of the eight force arms, the third contact surface 10 and the sixth contact surface 13 can not only generate a large plug-in force, but also ensure a long operating life.

[0042] First, the terminal 3 is inserted into the insertion hole of the rubber core 1, the insertion hole of the rubber core 1 is composed of a rubber core terminal insertion hole first area 34 and a rubber core terminal insertion hole second area 35, and the terminal first area 28 and the terminal second area 29 of the terminal 3 are respectively inserted into the corresponding rubber core terminal insertion hole first area 34 and rubber core terminal insertion hole second area 35, and when the terminal limiting plane 27 contacts the rubber core limiting plane 31, the terminal assembly is completed.

[0043] In order to facilitate the smooth insertion of the terminal 3, the upper part of the rubber core terminal insertion hole first area 34 and the rubber core terminal insertion hole second area 35 is provided with a rubber core terminal insertion hole first guide area 32 and a rubber core terminal insertion hole second guide area 33, the space of the rubber core terminal insertion hole first guide area 32 and the rubber core terminal insertion hole second guide area 33 is slightly larger than that of the rubber core terminal insertion hole first area 34 and the rubber core terminal insertion hole second area 35, and the four corners of the rubber core terminal insertion hole first guide area 32 and the rubber core terminal insertion hole second guide area 33 are designed with chamfers, under the guidance of the large space and chamfers, the terminal 3 will be more smoothly inserted into the rubber core terminal insertion hole first area 34 and the rubber core terminal insertion hole second area 35 of the rubber core 3, thereby improving the assembly efficiency.

[0044] In order to ensure the positioning of the terminal pin tail 30, the lower part of the rubber core terminal insertion hole second area 35 is designed with a rubber core terminal pin tail positioning area 36, the rubber core terminal pin tail positioning area 36 wraps around the four corners of the terminal pin tail 30, thereby limiting the movement of the four corners of the terminal pin tail 30, greatly improving the positioning of the terminal pin tail, thereby ensuring that the terminal pin tail 30 can be smoothly inserted into the PCB board 5, thereby improving the work efficiency of the plug-in personnel.

[0045] After the terminal 3 is assembled, the cover 4 is covered into the rubber core groove 43, and in the assembly process of the cover 4, the rubber core hot melting column 40 will pass through the cover hot melting hole 47, and when the cover limiting face 48 contacts the rubber core cover limiting face 41, the assembly of the cover 4 is completed.

[0046] After the cover 4 is assembled, the glue core heat melting column 40 and the cover heat melting block 46 are heat melted through a heat melting tool, and after heat melting, the cover 4 is completely fixed on the glue core 1 and is not easy to fall off.

[0047] In order to ensure that the cover 4 is not installed reversely, the cover anti-fool groove 49 is designed on the cover 4, and the glue core anti-fool block 42 is designed on the glue core 1, when the cover 4 is installed reversely, the cover anti-fool groove 49 and the glue core anti-fool block 42 cannot be normally installed, so that the anti-fool purpose is achieved.

[0048] After the cover 4 is assembled, the copper column 2 is installed into the glue core 1, in the process of assembling the copper column 2, the copper column 2 passes through the glue core copper column hole 37, and when the copper column limiting surface 45 contacts the glue core copper column limiting surface 38, the assembling of the copper column 2 is completed.

[0049] In order to ensure that the copper column 2 is not easy to fall off from the glue core 1, the copper column clamping point 44 is designed on the copper column 2, the copper column clamping point 44 is in interference fit with the glue core copper column hole 37, interference fit is used to achieve the purpose of generating the holding force of the copper column 2, when the whole product is welded to the PCB 5, because the copper column limiting surface 45 of the copper column 2 and the glue core limiting surface 31 of the glue core 1 are in the opposite direction of the PCB 5, when the whole product is extruded by external force, the copper column limiting surface 45 tightly clamps the glue core limiting surface 31, and the welding force of the terminal 3 is added, so that after the whole product is welded on the PCB 5, a larger fixing force is generated, which greatly increases the reliability of the whole product.

[0050] In order to further strengthen the strength of the glue core 1, the glue core reinforcing ribs 39 are designed on both sides of the glue core 1, under the action of the glue core reinforcing ribs 39, the strength of both sides of the glue core 1 is increased and is not easy to deform, so that the product quality is improved.

[0051] According to the above technical scheme of the utility model, through the optimization and improvement design of the utility model product, the utility model product is installed below the PCB, the space above the PCB can be greatly reduced, the terminal is a six-surface contact structure, the plug pin opposite to the terminal can be tightly wrapped, so that larger plug-in and plug-out force can be output, in addition, the copper column is assembled on both sides of the glue core, when the copper column is inserted into the PCB and finally welded to the PCB together with the terminal, the welding strength of the whole product is greatly improved, at the same time, because the copper column is assembled from top to bottom, the copper column is hung on the glue core after welding, so that the quality is reliable, and the whole product cannot fall off from the PCB.

[0052] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A socket installed under a PCB, characterized in that, The device includes a core (1), a terminal (3), a cover (4), and a copper pillar (2) located below the PCB board (5). The terminal (3) and the corresponding insertion part of the pin (23) are configured to have six-sided contact. The six-sided contact terminal (3) includes a flared mouth (14) formed by a first contact surface (8), a second contact surface (9), a third contact surface (10), a fourth contact surface (11), a fifth contact surface (12), and a sixth contact surface (13). The pin (23) includes an insertion side surface (24), an insertion front surface (25), and an insertion back surface (26). The first contact surface (8) abuts against the fourth contact surface (11) and the insertion side surface (24). The second contact surface (9), the third contact surface (10), the fifth contact surface (12), the sixth contact surface (13), the insertion front surface (25), and the insertion back surface (26) abut against each other.

2. A socket installed under a PCB according to claim 1, characterized in that, The terminal (3) is provided with a first pair of sockets (6) and a second pair of sockets (7) corresponding to the pins (23). The third contact surface (10) is connected to the first pair of sockets (6) through the first connecting arm (15) and the second connecting arm (16). The sixth contact surface (13) is connected to the second pair of sockets (7) through the third connecting arm (17) and the fourth connecting arm (18).

3. A socket installed under a PCB according to claim 1, characterized in that, The terminal (3) includes a terminal area 1 (28) and a terminal area 2 (29). The core (1) is provided with a core terminal socket area 1 (34) and a core terminal socket area 2 (35) corresponding to the terminal area 1 (28) and the terminal area 2 (29). The terminal (3) and the core (1) are respectively provided with a terminal limiting plane (27) and a core limiting plane (31).

4. A socket installed under a PCB according to claim 3, characterized in that, Above the first area (34) and the second area (35) of the core terminal socket, there are respectively a first guide area (32) and a second guide area (33) of the core terminal socket to facilitate the insertion of the terminal (3). The first guide area (32) and the second guide area (33) of the core terminal socket are chamfered around their perimeter.

5. A socket installed under a PCB according to claim 3, characterized in that, The terminal (3) includes a terminal pin tail (30), and a core terminal pin tail positioning area (36) for surrounding the terminal pin tail (30) is provided below the second area (35) of the core terminal socket.

6. A socket installed under a PCB according to claim 1, characterized in that, The cover (4) is provided with a cover heat fusion hole (47), and the core (1) is provided with a core heat fusion column (40) adapted to the cover heat fusion hole (47). The cover (4) and the core (1) are respectively provided with a cover limiting surface (48) and a core cover limiting surface (41).

7. A socket installed under a PCB according to claim 1, characterized in that, The core (1) and the cover (4) are respectively provided with a core anti-misfit block (42) and a cover anti-misfit groove (49) to prevent reverse installation; the core (1) and the cover (4) are also respectively provided with a core heat-melting column (40) and a cover heat-melting block (46) for heat melting.

8. A socket installed under a PCB according to claim 1, characterized in that, The core (1) is provided with a core copper pillar hole (37) for installing the copper pillar (2), and the core (1) and the copper pillar (2) are respectively provided with a core copper pillar limiting surface (38) and a copper pillar limiting surface (45).

9. A socket installed under a PCB according to claim 8, characterized in that, The copper column (2) is provided with several copper column locking points (44) that are interference-fitted with the copper column hole (37) of the glue core.

10. A socket installed under a PCB according to claim 1, characterized in that, The side wall of the core (1) is provided with several core reinforcing ribs (39).

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