Board end connector

Abstract

The utility model relates to a board end connector, which comprises a base, terminals and soldering lugs, the terminals are arranged on the base along the front-back direction, and the soldering lugs are fixed on the left and right sides of the base; the base comprises a base body part and an insertion plate part formed by forwards extending the front end of the base body part, and the upper part of the base forms a step shape at the joint of the base body part and the insertion plate part; the base body part is provided with a fixed jack extending along the front-back direction, and a terminal slot which is communicated with the fixed jack and extends along the front-back direction is formed in the upper surface of the plugboard part; each terminal comprises a fixed section inserted and fixed in the fixed jack, a power connection section embedded in the terminal slot and a pin extending out of the rear end of the base, and the upper surface of the power connection section protrudes out of the upper surface of the plugboard part. According to the utility model, through optimization design of the structure of the plate end connector, bending and deformation of the terminals caused by external force are avoided, and reliability of electrical connection is ensured.

Description

Technical Field

[0001] The utility model relates to a board-end connector, belonging to the field of connector male end structure design. Background Art

[0002] A board-side connector is an electrical connector used to achieve electrical connections between circuit boards or between a circuit board and other electronic components. A board-side connector generally includes a female connector and a male connector. When in use, the female connector and the male connector are respectively installed on two PCB boards, and then the electrical connection between the two PCB boards is achieved by plugging the male connector and the female connector into each other. The male end of the connector is provided with a male terminal, and the female end of the connector is provided with a female terminal. The circuit is connected by contact between the male terminal and the female terminal. However, in addition to having good conductivity, the male terminal also requires good mechanical strength to ensure the reliability and stability of the electrical connection. However, most of the current male terminals lack effective mechanical protection, which results in external forces easily causing the power connection section to bend and deform during use, making it difficult for it to effectively contact and cooperate with the female terminal, thereby affecting the reliability of the electrical connection. Utility Model Content

[0003] Therefore, the present invention aims to provide a board-end connector to solve the deficiencies in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a board-end connector, comprising a base, a terminal and a welding piece;

[0006] The terminals are arranged on the base along the front-back direction, and the welding pieces are fixed on the left and right sides of the base;

[0007] The base comprises a base portion and a plug-in plate portion extending forward from the front end of the base portion, and the upper portion of the base is formed in a stepped shape at the junction of the base portion and the plug-in plate portion;

[0008] The base portion is provided with a fixed insertion hole extending in the front-to-back direction, and the upper surface of the plug-in plate portion is formed with a terminal slot connected to the fixed insertion hole and extending in the front-to-back direction;

[0009] The terminal comprises a fixed section inserted and fixed in the fixed socket, a power connection section embedded in the terminal slot and a pin extending from the rear end of the base, and the upper surface of the power connection section protrudes from the upper surface of the plug board portion.

[0010] In some embodiments, the bottom of the rear end of the base is provided with an upwardly concave groove and a groove provided above the groove, and a partition is formed between two adjacent grooves. The pin extends backward through the groove, and the bottom of the partition forms a downward supporting surface.

[0011] In some embodiments, the welding piece has a fixing portion fixedly connected to the base portion and a welding portion vertically connected to the bottom of the fixing portion.

[0012] In some embodiments, both sides of the base portion are provided with fixing grooves penetrating in the up-down direction;

[0013] The fixing portion is inserted into the fixing groove from top to bottom. An upward stopping surface is provided in the fixing groove. The fixing portion is provided with a stopper matched with the stopping surface.

[0014] In some embodiments, a narrowing portion that is wider at the back and narrower at the front is provided in the fixing socket, and a limiting portion that cooperates with the narrowing portion to stop the fixing section is provided on the fixing section.

[0015] In some embodiments, the rear port of the fixed socket is flared, and the front end of the power connection section is frustum-shaped.

[0016] The positive effects of the present invention are as follows: the structure of the mid-board connector of the present invention is optimized, and by providing the plug-in board portion and providing the terminal slot on the plug-in board portion, it can support and limit the power connection section of the terminal, thereby preventing the power connection section from bending and deformation, enhancing its mechanical strength, and thus ensuring the reliability of the electrical connection during use, and ensuring good conductive effect in the connected state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the mid-board connector of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the mid-board connector of the present invention from another angle;

[0020] Figure 3 This is a cross-sectional view of the board-end connector of the utility model;

[0021] Figure 4 This is an exploded view of the board-end connector of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the base (partially cut away) in the present invention;

[0023] Figure 6This is a structural diagram of the mid-board connector of the utility model when it is installed and used.

[0024] Reference numerals shown in the figure: 1-base; 11-base portion; 12-insertion board portion; 13-fixed socket; 14-neck portion; 15-terminal slot; 16-missing slot; 17-open slot; 18-partition; 19-fixed slot; 191-stop surface; 2-terminal; 21-fixed section; 211-limiting portion; 22-power connection section; 23-pin; 3-soldering piece; 31-fixed portion; 32-soldering portion; 33-stop platform; 4-PCB board; 5-mating connector; 51-socket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0028] The board end connector structure provided in the embodiment of the utility model is as follows Figures 1 to 5As shown, it includes a base 1, terminals 2 and soldering lugs 3. The terminals 2 are arranged on the base 1 along the front-to-back direction, and the soldering lugs 3 are fixed to the left and right sides of the base 1. During installation, the soldering lugs 3 are soldered to the PCB board to strengthen the bonding force between the board-end connector and the PCB board; the base 1 includes a base portion 11 and a plug-in plate portion 12 formed by extending forward from the front end of the base portion 11. The upper portion of the base 1 forms a step-like shape at the junction of the base portion 11 and the plug-in plate portion 12; the base portion 11 is provided with a fixed socket 13 extending along the front-to-back direction, and the upper surface of the plug-in plate portion 12 forms a terminal connected to the fixed socket 13 and extending along the front-to-back direction. Slot 15; the terminal 2 includes a fixed section 21 that is plugged into and fixed in the fixed socket 13, a power section 22 embedded in the terminal slot 15, and a pin 23 extending from the rear end of the base 1. The fixed section 21 cooperates with the fixed socket 13 to fix the terminal 2. The power section 22 is used to electrically connect to the conductor in the plug connector 5. The pin 23 is used to weld to the power connection part on the PCB board 4. The upper surface of the power section 22 protrudes from the upper surface of the plug board portion 12 to facilitate contact between the power section 22 and the conductor in the socket 51 on the plug connector 5; see Figure 6 As shown, when the board-end connector is plugged into the plug-in connector 5, the plug-in board portion 12 is inserted into the socket 51 of the plug-in connector 5. When plugged into place, the front end of the base portion 11 abuts against the end face of the plug-in connector 5, and the upper surface of the power section 22 contacts the conductor in the socket of the plug-in connector 5 to achieve electrical connection. The plug-in board portion 12 and the terminal slot 15 thereon can support and limit the power section 22 of the terminal 2, thereby preventing the power section 22 from bending and deformation, enhancing its mechanical strength, and thus ensuring the reliability of the electrical connection during use and ensuring good conductivity in the connected state.

[0029] In some embodiments, see Figure 2 and Figure 3 As shown, the bottom of the rear end of the base 1 is provided with an upwardly concave notch 16 and a slot 17 provided above the notch 16, and a partition 18 is formed between two adjacent slots 17. The pins 23 extend backward through the slots 17, and the bottom of the partition 18 forms a downward supporting surface; when the connector is connected to the PCB board 4, the edge of the PCB board 4 extends into the notch 16, and overlaps with the upper surface of the PCB board 4 through the supporting surface, thereby supporting the base 1. At the same time, the partition 18 can form a barrier between the pins 23 of two adjacent terminals, thereby enhancing the insulation protection performance.

[0030] In some embodiments, as Figure 1 and Figure 4 As shown, the soldering piece 3 has a fixing portion 31 fixedly connected to the base portion 11 and a welding portion 32 vertically connected to the bottom of the fixing portion 31; the welding portion 32 is welded to the PCB board 4 to achieve fixation.

[0031] In order to facilitate the rapid and reliable assembly of the soldering piece 3 and the base part 11, the base part 11 is provided with fixing grooves 19 running through the upper and lower directions on both sides; the fixing part 31 is inserted into the fixing groove 19 from top to bottom, and the fixing groove 19 is provided with an upward stop surface 191, and the fixing part 31 has a stop platform 33 that cooperates with the stop surface 191. The stop platform 33 is abutted against the stop surface 191 to enhance the connection strength between the soldering piece 3 and the base part 11. This design cleverly utilizes the mutual cooperation of the fixing groove 19, the stop surface 191 and the stop platform 33 to ensure that the soldering piece 3 and the base part 11 can be reliably and firmly connected together, which is conducive to achieving a reliable fixed connection between the base 1 and the PCB board 4.

[0032] In some embodiments, as Figure 4 and Figure 5 As shown, the fixed socket 13 is provided with a narrowing portion 14 that is wider at the back and narrower at the front, and the fixed section 21 is provided with a limiting portion 211 that cooperates with the narrowing portion 14 to stop the terminal 2. When the terminal 2 is installed on the base 1, the fixed section 21 is inserted into the fixed socket 13 and when installed in place, the limiting portion 211 interferes with the narrowing portion 14, thereby preventing the fixed section 21 from being inserted forward. During the installation of the terminal 2 on the base 1, when the fixed section 21 is plugged into the fixed socket 13, interference will occur between the limiting portion 211 and the narrowing portion 14. This interference will prevent the fixed section 21 from continuing to be inserted forward, thereby ensuring that the terminal 2 can be correctly and firmly fixed in the predetermined position, avoiding adverse effects or damage caused by excessive insertion.

[0033] In order to facilitate the assembly between the terminal 2 and the base 1, the rear port of the fixed socket 13 is flared and the front end of the power connection section 22 is cone-shaped. In this way, when the terminal is installed, the front end of the power connection section 22 can be quickly inserted through the rear port of the fixed socket 13.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A board-end connector comprising a base (1), a terminal (2) and a soldering piece (3); The terminal (2) is arranged on the base (1) along the front-back direction, and the welding piece (3) is fixed to the left and right sides of the base (1); It is characterized by: The base (1) comprises a base portion (11) and an inserting plate portion (12) formed by extending forward from the front end of the base portion (11); the upper portion of the base (1) forms a step shape at the junction of the base portion (11) and the inserting plate portion (12); The base portion (11) is provided with a fixed insertion hole (13) extending in the front-to-back direction, and the upper surface of the plug plate portion (12) is formed with a terminal slot (15) communicating with the fixed insertion hole (13) and extending in the front-to-back direction; The terminal (2) comprises a fixed section (21) plugged into and fixed in the fixed socket (13), a power connection section (22) embedded in the terminal slot (15), and a pin (23) extending from the rear end of the base (1), wherein the upper surface of the power connection section (22) protrudes from the upper surface of the plug-in plate portion (12).

2. The board connector according to claim 1, wherein: The bottom of the rear end of the base (1) is provided with an upwardly concave notch (16) and a slot (17) provided above the notch (16), a partition (18) is formed between two adjacent slots (17), the pin (23) extends backward through the slot (17), and the bottom of the partition (18) forms a downward supporting surface.

3. The board connector according to claim 1, wherein: The welding piece (3) comprises a fixing portion (31) fixedly connected to the base portion (11) and a welding portion (32) vertically connected to the bottom of the fixing portion (31).

4. The board connector according to claim 3, wherein: Both sides of the base portion (11) are provided with fixing grooves (19) penetrating in the up-down direction; The fixing portion (31) is inserted into the fixing groove (19) from top to bottom. An upward-facing stop surface (191) is provided in the fixing groove (19). The fixing portion (31) has a stop platform (33) that cooperates with the stop surface (191) for stopping.

5. The board-end connector according to any one of claims 1 to 4, characterized in that: A narrowing portion (14) that is wider at the rear and narrower at the front is provided in the fixed insertion hole (13), and a limiting portion (211) that cooperates with the narrowing portion (14) for stopping is provided on the fixed section (21).

6. The board-end connector according to any one of claims 1 to 4, characterized in that: The rear port of the fixed socket (13) is in a flared shape, and the front end of the power connection section (22) is in a cone shape.

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