Electric connector socket

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to an electric connector socket, which comprises at least two groups of terminal assemblies arranged in parallel, each group of terminal assembly comprises two terminal plates, each terminal plate is provided with a head part and a tail part, the head parts of the two terminal plates are in gapless fit, a gap A is arranged between the tail parts, and the tail parts of the two terminal plates are in gapless fit with each other. A plurality of fisheye structures are arranged on the upper end surface of the tail part; the terminal board is provided with a middle part at a position between the head part and the tail part, and the head part and the tail part are in transition connection through the middle part. According to the technical scheme of the electric connector socket, the head parts of the terminal assemblies are combined, the tail parts of the terminal assemblies are split, and the plurality of fisheye structures are arranged on the upper end surfaces of the tail parts, so that the bearing pressure and the through-current capability of the connector socket are ensured, the space of a product is effectively utilized, and the miniaturization of the product is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to an electric connector socket. Background Art

[0002] Press-fit, also called crimping, is a connection method in which a pin (also called terminal) is pressed into a hole smaller than its outer diameter by external force. It has the advantages of low cost, high efficiency, simple operation and high reliability. Fisheye terminals are the most widely used Press-fit terminal structure.

[0003] The current carrying capacity of the terminal is closely related to the material and the cross-sectional area of ​​the current carrying capacity. The existing press-fit connector socket often uses a single thick terminal, and the current transmission from the plug to the PCB board is realized by bending or not bending the terminal. When the current carrying capacity needs to be improved, it is often solved by increasing the number of terminals, such as Figure 7 shown.

[0004] The existing press-fit connector increases the current carrying capacity by increasing the number of terminals. However, when increasing the number of terminals, the effective use of product space is not considered, and the miniaturization design of the product cannot be achieved. Utility Model Content

[0005] The utility model aims at solving the problems in the prior art and proposes the following technical solutions:

[0006] An electrical connector socket, comprising at least two groups of terminal assemblies arranged in parallel, each group of the terminal assemblies comprising two terminal boards, the terminal boards having a head and a tail, the heads of the two terminal boards being fitted together without a gap, and a gap A being provided between the tails, and the upper end surface of the tail being provided with a plurality of fisheye structures;

[0007] The terminal board has a middle portion located between the head portion and the tail portion, and the head portion and the tail portion are connected through a transition in the middle portion.

[0008] As a preferred embodiment of the above technical solution, the head ends of each group of terminal assemblies have different lengths, and the tail ends of each group of terminal assemblies are flush.

[0009] As a preferred embodiment of the above technical solution, the side opposite to the head of the two terminal boards is a plane for bonding, and the side opposite to the head of the two terminal boards is a slope formed by a thinning process for guiding when plugging;

[0010] The slope surface becomes thicker from the head end to the tail end of the head.

[0011] As a preferred embodiment of the above technical solution, it further comprises a base and a cover plate that are snap-fitted together, wherein a slot body for accommodating the terminal assembly is formed between the base and the cover plate;

[0012] The fisheye structure movably penetrates the cover plate.

[0013] As a preferred embodiment of the above technical solution, a stop step perpendicular to the length direction of the terminal assembly is provided inside the groove body, and a stop surface cooperating with the stop step for positioning is provided at the lower end of the head;

[0014] A second stop surface is provided at the position of the upper end of the tail portion corresponding to the fisheye structure. The second stop surface passes through the through hole provided on the cover plate and is fitted and positioned with the side wall of the through hole.

[0015] As a preferred embodiment of the above technical solution, the lower end surface of the cover plate extends longitudinally to form a support column, the movable end of the support column is inserted into the gap A, and the two side surfaces of the tail portion are respectively in contact with the side wall of the trough body and the support column.

[0016] As a preferred embodiment of the above technical solution, a first hook is provided on the base, and the cover plate extends downward to form a second hook that is engaged with the first hook.

[0017] As a preferred embodiment of the above technical solution, a card slot is provided at the rear end of the base, and a buckle covering the card slot is provided at the rear end of the cover.

[0018] As a preferred embodiment of the above technical solution, a heat dissipation hole is provided on the base at a position corresponding to the head.

[0019] As a preferred embodiment of the above technical solution, a positioning column for guiding the front of the crimped PCB board is provided on the upper end surface of the base.

[0020] The beneficial effects of the utility model are:

[0021] In the technical solution of the electric connector socket, by merging the head and splitting the tail in the terminal assembly and arranging multiple fisheye structures on the upper end surface of the tail, while ensuring the pressure-bearing and flow-through capacity of the connector socket, effective use of the product space is achieved, and the product is miniaturized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 What is shown is a first perspective stereoscopic view of the electrical connector socket in the present embodiment 1;

[0023] Figure 2 Shown is a second perspective stereoscopic view of the electrical connector socket in the first embodiment;

[0024] Figure 3 It shows Figure 1 Schematic cross-sectional view of AA in the figure;

[0025] Figure 4 It shows Figure 2 A schematic cross-sectional view of the middle BB;

[0026] Figure 5 It shows Figure 2 Schematic cross-sectional view of CC;

[0027] Figure 6 Shown is a stereoscopic view of the terminal assembly in this embodiment 1;

[0028] Figure 7 Shown is a schematic diagram of a conventional connector socket.

[0029] Figure numerals: base 10, slot body 11, stop step 12, hook 1 13, positioning column 14, heat dissipation hole 15, cover plate 20, support column 21, hook 2 22, buckle 23, terminal assembly 30, head 31, stop surface 1 311, middle part 32, tail 33, stop surface 2 331, fisheye structure 34. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0031] Example 1

[0032] like Figure 3 , Figure 6 As shown, the electrical connector socket includes at least two groups of terminal assemblies 30 arranged in parallel, each group of terminal assemblies 30 includes two terminal boards, the terminal boards have a head 31 and a tail 33 that dock with the plug, the heads 31 of the two terminal boards are fitted without a gap, and there is a gap A between the tails 33, and the upper end surface of the tail 33 is provided with a plurality of fisheye structures 34, the fisheye structures 34 are used for matching the PCB board crimping, and in this embodiment, the fisheye structures 34 are provided with four;

[0033] The terminal board has a middle portion 32 located between the head portion 31 and the tail portion 33. The head portion 31 and the tail portion 33 are transitionally connected through the middle portion 32, so that the head portions 31 fit without a gap and there is a gap A between the tail portions 33. The middle portion 32 is set to an arc with a guiding function, which plays a guiding role when the connector is plugged in and out.

[0034] In the technical solution of the electrical connector socket, a plurality of fisheye structures 34 are provided on the upper end surface of the tail portion 33 to shunt the current, thereby achieving a large current and reducing the crimping force of a single fisheye structure 34, thereby reducing damage to the PCB board; the space originally occupied by the two terminals is greatly reduced by fitting the heads 31 of the two terminal boards together without a gap and providing a gap A between the tail portions 33.

[0035] By merging the head 31 and splitting the tail 33 in the terminal assembly 30, and providing a plurality of fisheye structures 34 on the upper end surface of the tail 33, while ensuring the pressure-bearing and flow-through capacity of the connector socket, effective use of the product space is achieved, thereby realizing miniaturization of the product.

[0036] like Figure 3 , Figure 6 As shown, the head 31 of each terminal assembly 30 has different lengths, and the tail end of each terminal assembly 30 is flush, so that the electrical connector socket has both long terminals and short terminals, thereby realizing hot plugging of the electrical connector.

[0037] like Figure 3 , Figure 6 As shown, the opposite side of the heads 31 of the two terminal boards is a plane for bonding, which reduces the gap between the two terminal boards, reduces the occupied space of the terminal assembly 30, and further realizes product miniaturization;

[0038] The side opposite to the head 31 of the two terminal boards is a sloped surface formed by a thinning process for guiding during insertion; the slope becomes thicker from the head end to the tail end of the head 31; the setting of the slope plays a guiding role when the connector is plugged in and out, thereby improving the convenience of plugging in and out. At the same time, the side opposite to the head 31 of the two terminal boards is processed by a thinning process to reduce the size of the head 31 and reduce the plugging and unplugging force generated during the plugging and unplugging of the connector.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the electrical connector socket further includes a base 10 and a cover plate 20. To improve the convenience of assembling the base 10, the cover plate 20 and the terminal assembly 30, the base 10 and the cover plate 20 are snap-fitted, wherein a slot 11 for accommodating the terminal assembly 30 is formed between the base 10 and the cover plate 20;

[0040] The fisheye structure 34 movably penetrates the cover plate 20 and cooperates with the PCB board.

[0041] To solve the problem of stabilizing the position of the terminal assembly 30 in the slot 11, as Figure 4 , Figure 6As shown, a stop step 12 perpendicular to the length direction of the terminal assembly 30 is provided inside the slot body 11, and a stop surface 311 cooperating with the stop step 12 for positioning is provided at the lower end of the head 31;

[0042] like Figure 1 , Figure 2 , Figure 6 As shown, a second stop surface 331 is provided at the upper end of the tail portion 33 at a position corresponding to the fisheye structure 34 . The second stop surface 331 passes through the through hole provided on the cover plate 20 and is positioned in contact with the side wall of the through hole.

[0043] When assembling the electrical connector socket, the terminal assembly 30 is installed from the tail of the base 10, the stop surface 1 311 contacts the stop step 12, the terminal assembly 30 is stopped, and the cover plate 20 is installed from the top of the base 10. The fisheye structure 34 and the stop surface 2 331 pass through the through hole, and the rear cover plate 20 is snap-fitted with the base 10. The cover plate 20 and the base 10 completely limit the terminal assembly 30. The stability of the position of the terminal assembly 30 in the slot body 11 is achieved through the cooperation between the stop step 12 and the stop surface 311, and the cooperation between the stop surface 2 331 and the through hole.

[0044] like Figure 3 , Figure 4 As shown, the lower end surface of the cover plate 20 extends longitudinally to form a support column 21, and the movable end of the support column 21 is inserted into the gap A to open the tail portion 33, so that the two side surfaces of the tail portion 33 are respectively in contact with the side walls of the slot body 11 and the support column 21; the cover plate 20 constrains the terminal assembly 30 through the support column 21 to ensure the stability of the position of the terminal assembly 30 inside the slot body 11, and when the PCB board is crimped, the terminal assembly 30 is evenly stressed and has a greater holding force in the base 10.

[0045] like Figure 5 As shown, in order to realize the snap-fit ​​arrangement between the base 10 and the cover plate 20, a snap hook 13 is arranged on the base 10, and the cover plate 20 extends downward to form a snap hook 22 snap-fitted with the snap hook 13;

[0046] When the cover plate 20 is installed, the second hook 22 contacts the first hook 13 and undergoes elastic deformation, and returns to its original position after passing over the first hook 13 , and engages with the first hook 13 .

[0047] like Figure 1 As shown, a card slot is provided at the rear end of the base 10, and a buckle 23 covering the card slot is provided at the rear end of the cover 20; after the base 10 and the cover 20 are snap-fitted and installed, the buckle 23 covers the card slot, thereby strengthening the rear structure of the base 10. The constraint of the cover 20 on the base 10 enables the socket as a whole to withstand a greater crimping force when the PCB board is crimped.

[0048] like Figure 1 , Figure 2As shown, in order to solve the heat dissipation problem of the terminal during operation, a heat dissipation hole 15 for heat dissipation of the terminal is opened at a position corresponding to the head 31 on the base 10.

[0049] like Figure 1 , Figure 2 As shown, in order to improve the stability and accuracy of the fisheye structure 34 when it is matched with the PCB board, a positioning column 14 for guiding before crimping the PCB board is provided at the upper end surface of the base 10.

[0050] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An electrical connector socket, comprising at least two groups of terminal assemblies (30) arranged in parallel, characterized in that: Each group of the terminal assemblies (30) comprises two terminal plates, each of the terminal plates having a head portion (31) and a tail portion (33), the heads (31) of the two terminal plates being fitted together without a gap, and a gap A being provided between the tail portions (33), and a plurality of fisheye structures (34) being provided on the upper end surfaces of the tail portions (33); The terminal board has a middle portion (32) located between the head portion (31) and the tail portion (33), and the head portion (31) and the tail portion (33) are transitionally connected via the middle portion (32).

2. The electrical connector socket according to claim 1, characterized in that: The head parts (31) of each group of terminal assemblies (30) have different lengths, and the tail ends of each group of terminal assemblies (30) are flush.

3. The electrical connector socket according to claim 1, characterized in that: The opposite side of the heads (31) of the two terminal boards is a plane for bonding, and the opposite side of the heads (31) of the two terminal boards is a sloped surface formed by a thinning process and used for guiding when plugging together; The slope surface becomes thicker from the head end to the tail end of the head (31).

4. The electrical connector socket according to claim 1, characterized in that: It also includes a snap-fit ​​base (10) and a cover plate (20), wherein a slot (11) for accommodating a terminal assembly (30) is formed between the base (10) and the cover plate (20); The fisheye structure (34) movably penetrates the cover plate (20).

5. The electrical connector socket according to claim 4, characterized in that: A stop step (12) perpendicular to the length direction of the terminal assembly (30) is arranged inside the groove body (11), and a stop surface (311) cooperating with the stop step (12) for positioning is arranged at the lower end of the head (31); A second stop surface (331) is provided at the upper end of the tail portion (33) at a position corresponding to the fisheye structure (34); the second stop surface (331) passes through a through hole provided on the cover plate (20) and is positioned in contact with a side wall of the through hole.

6. The electrical connector socket according to claim 4, characterized in that: The lower end surface of the cover plate (20) extends longitudinally to form a support column (21), the movable end of the support column (21) is inserted into the gap A, and the two side surfaces of the tail portion (33) are respectively in contact with the side wall of the trough body (11) and the support column (21).

7. The electrical connector socket according to claim 4, characterized in that: The base (10) is provided with a first hook (13), and the cover plate (20) extends downward to form a second hook (22) that is engaged with the first hook (13).

8. The electrical connector socket according to claim 4, characterized in that: The rear end of the base (10) is provided with a card slot, and the rear end of the cover plate (20) is provided with a buckle (23) covering the card slot.

9. The electrical connector socket according to claim 4, characterized in that: A heat dissipation hole (15) is provided on the base (10) at a position corresponding to the head (31).

10. The electrical connector socket according to claim 4, characterized in that: A positioning column (14) for guiding the front of the PCB board during crimping is arranged on the upper end surface of the base (10).

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