CN204190023U - Connector between a kind of pcb board - Google Patents

Abstract

The utility model discloses connector between a kind of pcb board, relate to field of connectors between the pcb board of field, its technical essential is: include insulating base frame and be arranged at the contact terminal on insulating base frame, the front end of described insulating base frame is arranged with several spliced eyes, described spliced eye is all plugged with contact terminal, described contact terminal includes the convex extension part be wholely set successively, fixed part, bend and connecting portion, described fixed part is the part that contact terminal is immobilizated in insulating base frame, described convex extension part is the part that contact terminal passes after spliced eye outside insulating base frame, described connecting portion and the angled setting of fixed part, and formed by bend and fixed part and be rotationally connected.By arranging bend and connecting portion, after effectively can ensureing that connector uses more number of times between pcb board, contact terminal still can form good contact with winding displacement, improves the utilization rate of connector between pcb board.The utility model is applicable to connector between pcb board.

Description

A connector between PCB boards

technical field

The utility model relates to the field of connectors between PCB boards, in particular to a connector between PCB boards.

Background technique

The inter-PCB connector is a component that is often encountered in electronic engineering. Its function is very simple. It builds a communication bridge between the blocked or isolated PCB inter-connector circuits in the circuit, thus Let the current flow to make the circuit realize the predetermined function. Connectors between PCB boards are an indispensable part of electronic equipment. If you follow the path of current flow, you will always find one or more connectors between PCB boards. The form and structure of PCB inter-board connectors are ever-changing. Depending on the application object, frequency, power, application environment, etc., there will be various forms of PCB inter-board connectors.

PCB is the abbreviation of "PRINTED CIRCUIT BOARD" in English. Its PCB (printed circuit board) is based on an insulator and cut to a certain size. The chassis of the device and realize the interconnection between electronic components.

There is a patent with application number 201220466375.3 disclosing a connector between PCB boards, including an insulating base body and contact terminals arranged in the insulating base body, fixed pieces are provided on both sides of the insulating base body, and the fixed piece It is fixed on the insulated base body, there are soldering pins on the fixing piece and the contact terminal, and the inter-PCB connector is connected with the PCB through the soldering pins.

However, the inter-PCB connector of this structure can be referred to as shown in the accompanying drawings of the patent. Since the contact terminal structure arranged in the insulating seat is in the shape of a strip, the contact terminal is connected to the cable respectively in the initial use stage. When in contact with each other, the contact terminal and the cable can form a good contact, but after the cable is inserted into the connector between the PCB boards for a large number of times, the contact terminal will be affected by the contact between the cable and the terminal during the contact process. Force, so that the contact terminal will move away from the cable under the above-mentioned force, thereby reducing the contact area between the terminal and the cable. Under force, it will move away from the cable by a large margin, so that after the cable is inserted into the connector between the PCB boards, an effective electrical connection cannot be formed between the contact terminal and the cable, so that the user can only replace the connector between the PCB boards again, but In this way, the utilization rate of the connectors between the PCB boards is not high, resulting in a waste of resources.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a connector between PCB boards, which can effectively ensure that the contact terminals can still form a good connection with the cable after many times of use. contact, which improves the utilization rate of the connector between PCB boards.

In order to achieve the above purpose, the utility model provides the following technical solutions: a connector between PCB boards, including an insulating base body and contact terminals arranged on the insulating base body, the front end of the insulating base body is recessed with several Insertion holes, the insertion holes are all inserted with contact terminals, and the contact terminals sequentially include integrally arranged protruding parts, fixing parts, bending parts and connecting parts;

The fixing part is a part where the contact terminal is held in the insulating seat;

The protruding part is the part outside the insulating seat after the contact terminal passes through the insertion hole;

The connecting part is arranged at an angle to the fixing part, and forms a rotational connection with the fixing part through the bending part.

By adopting the above technical solution, a bending part and a connecting part are added in the insulating seat, so that when the inter-PCB connector is to be used, the connecting part will continue to be inserted into the insulating seat when the cable is inserted into the insulating seat. Under the action of the body, the connecting part forms a positive rotation through the bending part and the fixed part. After the cable is inserted into the top of the insulating seat body, the bending part is also bent to the maximum extent, which forms a large elastic potential energy. At this time When the cable and the connector between the PCB boards work together, the curved part with large elastic potential energy will rotate away from the direction of the fixed part, thereby enhancing the contact performance between the connecting part and the cable, and no matter whether the cable is inserted into the connector between the PCB boards The number of times, through the structure of the bending part, can make the connection part and the cable form a good contact, improve the utilization rate of the connector between the PCB boards, and avoid the waste of the connector between the PCB boards.

The utility model is further configured as: the contact terminal is made of elastic material.

By adopting the above technical solution, the contact terminal made of elastic material has good bending generation, and can effectively elastically deform when subjected to force, and after the force acting on the contact end disappears, the contact terminal can be under the action of elastic potential energy Return to the original position, so that the connector between the PCB boards can always be in close contact with the cable.

The utility model is further configured as follows: both sides of the insulating base are provided with welding grooves, and welding pieces can be detachably connected to the welding grooves;

The bottom wall of the welding groove is provided with a bump extending along the length of the welding groove;

The welding sheet includes a first welding sheet and a second welding sheet integrally arranged, and the first welding sheet and the second welding sheet are arranged in a bend;

The first welding piece is adapted to the shape and size of the welding groove, and an opening matching the shape and size of the bump is opened on the first welding piece;

Both ends of the bump in contact with the first welding piece are provided with several protrusions, and the first welding piece is provided with a groove matching the shape and size of the protrusions at the opening position;

When the first welding sheet is clamped in the welding groove, the protrusion and the groove are closely matched.

By adopting the above-mentioned technical scheme, inserting the soldering sheet into the soldering groove, and connecting the opening and the protrusion through matching, so that the soldering sheet and the inter-PCB connector form a detachable connection, so that the inter-PCB connector is welded on the After the circuit board is installed, due to the detachable connection between the soldering groove and the soldering piece, the inter-PCB connector can be easily removed from the circuit board and reused on another circuit board. The repeated use of the board-to-board connector saves resources; secondly, after inserting the soldering piece into the welding groove, the protrusion and the groove are closely matched so that the welding groove of the welding piece forms a tight fit connection. After soldering the PCB inter-board connector to the circuit board, even if there is a large vibration between the two, the tight fit between the protrusion and the groove can prevent the soldering piece from falling off from the soldering groove, ensuring the connection between the two Normal use.

Description of drawings

Fig. 1 is the outline structure diagram A of the connector between PCB boards of the present invention;

Fig. 2 is the outline structure diagram B of the connector between PCB boards of the present invention;

Fig. 3 is a perspective view of place A in Fig. 2;

Fig. 4 is a structural diagram of the contact terminal of the present invention;

Fig. 5 is the structural diagram of the utility model welding piece;

FIG. 6 is a perspective view at B in FIG. 5 .

In the figure: 1. Insulation seat body; 2. Contact terminal; 3. Insertion hole; 4. Protruding part; 5. Fixed part; 6. Bending part; 7. Connecting part; 8. Welding groove; ; 10, the first welding piece; 11, the second welding piece; 12, the opening; 13, the bump; 14, the groove.

detailed description

The utility model is further described with reference to Fig. 1 to Fig. 6 .

Referring to Figure 1 and Figure 2, a connector between PCB boards includes an insulating base body 1 and a contact terminal 2 arranged on the insulating base body 1, and the front end of the insulating base body 1 is recessed with several sockets. Connecting holes 3, the insertion holes 3 are plugged with contact terminals 2, and the contact terminals 2 sequentially include integrally arranged protruding parts 4, fixing parts 5, bending parts 6 and connecting parts 7;

Referring to Fig. 1, Fig. 2 and Fig. 4, the fixed part 5 is the part where the contact terminal 2 is held in the insulating seat 1;

Referring to Fig. 1, Fig. 2 and Fig. 4, the protruding part 4 is the part outside the insulating base body 1 after the contact terminal 2 passes through the insertion hole 3;

Referring to FIG. 1 , FIG. 2 and FIG. 4 , the connecting portion 7 is arranged at an angle to the fixing portion 5 , and forms a rotational connection with the fixing portion 5 through the bending portion 6 .

The contact terminal 2 is made of elastic material.

Referring to Fig. 2 and Fig. 3, both sides of the insulating base 1 are provided with welding grooves 8, and welding pieces 9 can be detachably connected in the welding grooves 8.

2 and 3, the bottom wall of the welding groove 8 is provided with a bump 13 extending along the length of the welding groove 8;

2, 5 and 6, the welding sheet 9 includes a first welding sheet 10 and a second welding sheet 11 integrally arranged, and the first welding sheet 10 and the second welding sheet 11 are arranged in a curved manner. ;

Referring to Fig. 2, Fig. 5 and Fig. 6, the first welding piece 10 is adapted to the shape and size of the welding groove 8, and the first welding piece 10 is provided with an opening 12 that is adapted to the shape and size of the bump 13 ;

Referring to Fig. 2, Fig. 5 and Fig. 6, the bump 13 is provided with several protrusions on both ends in contact with the first welding piece 10, and the first welding piece 10 is located at the position of the opening 12. A groove 14 matching the shape and size of the protrusion is provided;

Referring to FIG. 2 , FIG. 5 and FIG. 6 , when the first welding piece 10 is clipped in the groove 14 , the protrusion is closely matched with the groove 14 .

Due to the current PCB board-to-board connector, the contact terminal 2 arranged in the insulating base 1 has a strip-shaped structure. A good contact is formed, but after the cable is inserted into the connector between the PCB boards for a large number of times, since the contact terminal 2 will be subjected to the force of the cable on the terminal during the contact process with the cable, the contact terminal 2 will be in the above-mentioned Under the above-mentioned force, it will move away from the cable, thereby reducing the contact area between the terminal and the cable. Even after the number of insertions of the cable reaches a certain number, the contact terminal 2 will deviate from the cable by a large amount under the above-mentioned force. The amplitude moves so that after the cable is inserted into the connector between PCB boards, no effective electrical connection can be formed between the contact terminal 2 and the cable, so that the user can only replace the connector between PCB boards again, but the connector between PCB boards The utilization rate is not high, resulting in a waste of resources, the utility model better solves the above-mentioned technical problems by adopting the following specific embodiments.

Referring to Figures 1 to 6, in a specific embodiment of the present invention: by adding a bending part 6 and a connecting part 7 in the insulating base 1, when the connector between PCB boards is to be used, the cable is inserted into the In the process of entering the insulating seat body 1, the connecting part 7 will continue to insert the cable into the insulating seat body 1, and the connecting part 7 will form a positive rotation through the bending part 6 and the fixed part 5. After the cable is inserted into the insulating seat body 1 After the top end, the bending part 6 is also bent to the maximum extent, which forms a large elastic potential energy. At this time, when the cable and the connector between the PCB boards work together, the bending part 6 with large elastic potential energy will deviate from the The fixed part 5 rotates in one direction, thereby enhancing the contact performance between the connecting part 7 and the cable, and no matter how many times the cable is inserted into the connector between PCB boards, the structure of the bending part 6 can make the connecting part 7 and the cable The cable forms a good contact, which improves the normal utilization rate of the connector between the PCB boards and avoids the waste of the connector between the PCB boards.

And, through the matching connection between the opening 12 and the bump 13, the soldering piece 9 is detachably connected to the inter-PCB connector, so that after the inter-PCB connector is welded on the circuit board, due to the welding groove 8 and the soldering The detachable connection of piece 9 makes the inter-PCB connector can be easily removed from the circuit board and reused on another circuit board. This setting achieves the repeated use of the inter-PCB connector and saves Second, after the soldering piece 9 is inserted into the welding groove 8, the protrusion and the groove 14 are closely matched, so that the welding piece 9 and the welding groove 8 form a tight fit connection. In this design, the PCB After the board-to-board connector is welded on the circuit board, even if there is a large vibration between the two, the tight fit between the protrusion and the groove 14 can prevent the welding piece 9 and the welding groove 8 from falling off, ensuring the normal operation of the two. use.

The beneficial effects of the utility model are as follows: firstly, the connection part 7 and the cable can form a good contact, improve the normal utilization rate of the connector between the PCB boards, and avoid the waste of the connector between the PCB boards; secondly, it is convenient The inter-PCB connector is disassembled from the original circuit board, which achieves the reuse of the inter-PCB connector and saves resources; third, it can prevent the soldering piece 9 and the soldering groove 8 from falling off, ensuring the normal operation of both use.

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the thinking of the utility model all belong to the scope of protection of the utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (3)

1. connector between a pcb board, include insulating base frame and be arranged at the contact terminal on insulating base frame, the front end of described insulating base frame is arranged with several spliced eyes, described spliced eye is all plugged with contact terminal, it is characterized in that: described contact terminal include successively be wholely set convex extension part, fixed part, bend and connecting portion;

Described fixed part is the part that contact terminal is immobilizated in insulating base frame;

Described convex extension part is the part that contact terminal passes after spliced eye outside insulating base frame;

Described connecting portion and the angled setting of fixed part, and formed by bend and fixed part and be rotationally connected.

2. connector between a kind of pcb board according to claim 1, is characterized in that: described contact terminal is made up of elastomeric material.

3. connector between a kind of pcb board according to claim 1 and 2, is characterized in that: the both sides of described insulating base frame are equipped with welding groove, is all removably connected with bonding pad in described welding groove;

The diapire of described welding groove is provided with along the extended projection of its welding groove length;

Described bonding pad includes the first bonding pad and the second bonding pad that are wholely set, and described first bonding pad becomes to bend with the second bonding pad and arranges;

Described first bonding pad and welding groove shape size suitable, and the first bonding pad offers the opening suitable with projection shape size;

Described projection all offers several projections on the two ends contacted with the first bonding pad, and described first bonding pad offers the groove suitable with shape for lugs size on aperture position;

When first bonding pad is connected to welding groove, described projection closely cooperates mutually with groove.