Connector with welding plates on two sides

Abstract

The utility model provides a connector with a double-sided welding plate, which comprises a connector main body, a square pin is inserted into the upper end of the connector main body in a penetrating manner and is bent once to form an upper pin header, a square pin is inserted into the lower end of the connector main body in a penetrating manner and is bent twice to form a lower pin header, and a PCB (printed circuit board) I is welded on the bottom side of the connector main body. A second PCB is welded to the left side of the connector body and the left side of the first PCB. The connector of the double-sided welding plate can play a role in realizing reliable connection between the connector and the double-sided PCB.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, more particularly to a connector of double-sided welding plate. BACKGROUND

[0002] In the manufacturing process of electronic equipment, it is crucial to realize reliable connection between different PCB boards. The current connector between PCB boards in electronic equipment generally adopts single-sided welding structure, and the traditional connector usually adopts single-sided bending PIN needle design, which has obvious technical limitations in the implementation of double-board welding. In the existing production process, the assembly of the connector and the PCB board is mostly in full-automatic or full-manual mode, which is prone to problems such as welding point deviation and poor spacing matching in the double-board welding scenario. Especially when using through-hole reflow process, the traditional single-bending structure cannot effectively adjust the spacing between the upper and lower needle rows, resulting in mechanical stress concentration after double-board welding. In addition, the conventional connector lacks welding auxiliary structure design, and is prone to assembly defects such as floating and tilting during secondary welding, affecting the welding reliability and product yield. The support structure design in the prior art often conflicts with the tin fusion requirement, and it is difficult to balance the welding quality and assembly stability.

[0003] The utility model can realize reliable connection of the connector and the double-sided PCB board. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the technical problems in the above background art, and provides a connector of double-sided welding plate.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a connector of double-sided welding plate, comprising: a connector main body, four square needles are inserted through the upper end of the connector main body and are once bent to form an upper needle row, four square needles are inserted through the lower end of the connector main body and are twice bent to form a lower needle row, a PCB board one is welded to the bottom side of the connector main body, and a PCB board two is welded to the left side of the connector main body and the left side of the PCB board one.

[0006] Further preferred scheme: a suction surface is formed on the top side of the connector main body, and the first welding plate of the connector is inserted into the PCB board one automatic part through the suction surface of the connector main body by a suction nozzle.

[0007] Further preferred scheme: the second welding plate of the connector is inserted into the PCB board two part by hand.

[0008] Further preferred scheme: a tin fusion groove for preventing the product from floating after welding is formed on the front end of the bottom side of the connector main body.

[0009] Further preferred scheme: a support block for preventing the product from tilting is fixedly installed in the middle end of the tin fusion groove.

[0010] Further preferred scheme: the connector body material is plastic, the connector is connected and used by double-sided welding plate of PCB plate one and PCB plate two, the lower row of PIN needles of the connector is bent on both sides, and the other side is changed by bending twice to change the spacing between the upper and lower rows of needles.

[0011] Further preferred scheme: the connector body is inserted into the PCB plate one by automatic part, then the welding of the connector body and the PCB plate one is realized by through-hole reflow process, then the other side of the welded connector body is inserted into the PCB plate two and reflow soldered, so that the connector body is connected and conducted with the PCB plate one and the PCB plate two.

[0012] Further preferred scheme: the center spacing between the bottom ends of the two adjacent upper and lower needles on the front side is a, and a is 2.20 mm.

[0013] Further preferred scheme: the center spacing between the left ends of the two adjacent upper and lower needles on the rear side is b, and b is 7.62 mm.

[0014] Beneficial effects:

[0015] 1. The product is connected and used by double-sided welding plate;

[0016] 2. The lower row of PIN needles of the product is bent on both sides (the conventional one on the market is single-sided bending), and the other side is changed by bending twice to change the spacing between the upper and lower rows of needles;

[0017] 3. By providing the tin melting groove, the product can be prevented from floating after welding;

[0018] 4. By providing the supporting block, the product can be prevented from falling over;

[0019] 5. As described above, the double-sided welding plate connector can realize reliable connection of the connector and the double-sided PCB plate. DETAILED DESCRIPTION

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the front view angle structure of the connector body of the utility model.

[0022] Figure 3 It is a schematic diagram of the rear view angle structure of the connector body of the utility model.

[0023] Figure 4 It is a schematic diagram of the bottom view angle structure of the connector body of the utility model.

[0024] Figure 5 It is a schematic diagram of the left view angle structure of the connector body of the utility model.

[0025] Figure 6 The first time welding plate of the product of the utility model is inserted into the PCB plate automatic product state structure schematic view through the suction nozzle suction product suction surface.

[0026] Figure 7 The second time welding plate of the product of the utility model is inserted into the PCB plate product state structure schematic view through manual.

[0027] Figures 1-7 Middle: 1, connector main body; 101, suction surface; 102, tin melting groove; 103, supporting block; 2, upper row of pins; 3, lower row of pins; 4, PCB plate one; 5, PCB plate two. DETAILED DESCRIPTION

[0028] The utility model embodiment will be described below with the drawings attached to the utility model embodiment. Figures 1-7 The technical scheme in the utility model embodiment is clearly and completely described.

[0029] Please refer to Figures 1-7 In the utility model embodiment, a double-sided welding plate connector includes: a connector main body 1, four square pins are inserted through the upper end of the connector main body 1 and are once bent to form an upper row of pins 2, a vertical insertion structure with a PCB plate one 4 is formed by once bending, the assembly process is simplified, and the pin positioning accuracy during initial welding is ensured; four square pins are inserted through the lower end of the connector main body 1 and are twice bent to form a lower row of pins 3, an "S" shape compensation structure is formed by twice bending, and the double-plate spacing adaptation problem is solved; the connector main body 1 is welded with a PCB plate one 4 at the bottom side, the PCB plate one 4 (welded at the bottom side) is used as a main bearing plate, mechanical fixation and electrical connection are realized by through-hole reflow soldering; the connector main body 1 is welded with a PCB plate two 5 at the left side of the PCB plate one 4, the PCB plate two 5 (welded at the left side) is used as a secondary plate, side insertion + reflow soldering is adopted, a three-dimensional interconnection architecture is formed, and the traditional plane stacking limitation is broken through.

[0030] In the utility model embodiment, a suction surface 101 is formed at the top side of the connector main body 1, which is designed for the automatic assembly link, and the first time welding plate of the connector is inserted into the PCB plate one 4 automatic product through the suction nozzle suction connector main body 1 suction surface 101; when the first time welding plate operation is performed, the suction nozzle of the automatic equipment can be accurately adsorbed on the suction surface 101, the connector main body 1 is accurately inserted into the corresponding position of the PCB plate one 4 by using the high-precision positioning system of the automatic equipment, and the automatic product is realized; this design greatly improves the assembly efficiency, reduces the errors that may be caused by manual operation, ensures the initial position accuracy of the connector and the PCB plate one 4 connection, and lays a good foundation for the subsequent welding process.

[0031] In the embodiment of the utility model, the connector second welding plate is inserted into the PCB board two 5 by hand, considering the flexibility of production process and the demand of part special production scene, the second welding plate adopts the mode of manual insertion, after the first welding of connector main part 1 and PCB board one 4 is completed, the operator inserts the left side of connector main part 1 into the corresponding position of PCB board two 5 to make the part, manual operation can better adapt to some complex assembly conditions, for some subtle adjustment that automatic equipment is difficult to touch or handle, manual operation can rely on experience and flexibility to control accurately, ensure that the connection of connector and PCB board two 5 is close and accurate, finally realize the complete assembly of whole double-sided welding plate connector system.

[0032] In the embodiment of the utility model, the connector main part 1 bottom side front end is provided with the tin melting groove 102 for avoiding product welding high, in the welding process, the flow and distribution of tin melting have important influence on welding quality, the tin melting groove 102 of the connector main part 1 bottom side front end is mainly used to optimize the flow path of tin melting, when welding, the melted solder can flow into the tin melting groove 102 smoothly, avoid the phenomenon of product welding high after welding due to the accumulation of solder in the connector bottom, high will make the contact between connector and PCB board bad, influence electrical connection performance, the design of tin melting groove 102 can guide the uniform distribution of solder, ensure that the welding between connector main part 1 and PCB board one 4 is firm and stable, improve the welding quality and reliability of product.

[0033] In the embodiment of the utility model, the tin melting groove 102 middle end is fixedly installed with the support block 103 for preventing product from toppling, although the tin melting groove 102 solves the problem of welding high, but in actual production process, the connector may toppling due to uneven stress when welding, the support block 103 is fixedly installed in the middle end of tin melting groove 102, plays the key support and stabilizing role, in the welding process, the support block 103 is in close contact with the surface of PCB board one 4, provides additional support for connector main part 1, prevents the connector from toppling under the action of tin flow or other external force, this design not only guarantees the stability of connector in the welding process, but also further ensures the welding quality, avoids the welding defects caused by the toppling of connector, improves the yield of product.

[0034] The utility model discloses a connector body 1 material is plastic, the connector is connected with PCB board one 4 and PCB board two 5 double -sided welding board, the connector lower PIN needle bilateral bending is arranged, and the other side is through bending twice change upper and lower row needle spacing, twice bending forms " S " shape compensation structure, and plastic material has good insulation performance, can effectively prevent the short circuit of connector inside and other electrical faults, ensure the safe and stable operation of electronic equipment, adopt double -sided welding board connection mode, compared with traditional single -sided welding structure, the reliability and stability of the connection between connector and PCB board are greatly enhanced, and the lower PIN needle bilateral bending and one side are through twice bending, and this unique structure design can effectively adjust upper and lower row needle spacing, when facing different specifications of PCB board or complex circuit layout demand, can flexibly adjust the pin spacing, better adapt to double -board welding scene, avoid the welding problem such as mechanical stress concentration caused by inappropriate pin spacing.

[0035] The utility model discloses a connector body 1 adopts automatic workpiece and inserts PCB board one 4, then realizes the welding of connector body 1 and PCB board one 4 through through reflow process, inserts the other side of connector body 1 after welding and inserts PCB board two 5 and reflow welds, to realize the connection of connector body 1 and PCB board one 4 and PCB board two 5 conduction, first, automatic workpiece insertion guarantees the accuracy and consistency of the installation position of connector on PCB board one 4, through reflow process is an advanced welding process, it can improve the appearance and reliability of welding while guaranteeing the welding strength, first, the welding of connector and PCB board one 4 is carried out, after completing, then the other side of connector inserts PCB board two 5 and carries out reflow welding, and this step -by -step welding mode makes that connector and two PCB boards can realize good electrical connection and mechanical connection, and the stable operation of whole circuit system is ensured.

[0036] The utility model discloses a connector body 1 adopts automatic workpiece and inserts PCB board one 4, then realizes the welding of connector body 1 and PCB board one 4 through through reflow process, inserts the other side of connector body 1 after welding and inserts PCB board two 5 and reflow welds, to realize the connection of connector body 1 and PCB board one 4 and PCB board two 5 conduction, first, automatic workpiece insertion guarantees the accuracy and consistency of the installation position of connector on PCB board one 4, through reflow process is an advanced welding process, it can improve the appearance and reliability of welding while guaranteeing the welding strength, first, the welding of connector and PCB board one 4 is carried out, after completing, then the other side of connector inserts PCB board two 5 and carries out reflow welding, and this step -by -step welding mode makes that connector and two PCB boards can realize good electrical connection and mechanical connection, and the stable operation of whole circuit system is ensured.

[0037] In the embodiment of the utility model, the distance between the center of the left end of the upper and lower adjacent two upper pins 2 and lower pins 3 on the rear side is b, b is 7.62 mm, the pin distance on the rear side is different from that on the front side, and is also determined based on the circuit design features, component layout on the rear side of the PCB and the performance requirements of the overall electrical system, the distance of 7.62 mm can adapt to the connection requirements of different components in the rear circuit, ensure the stability and reliability of signal transmission, and the distance is also conducive to the uniform distribution of soldering in the welding process, realize good welding effect, and form stable electrical and mechanical connection between the pins on the rear side of the connector and the PCB.

[0038] Working principle: insert the plastic main body into the square needle, then bend and form; the product is inserted into PCB plate 1 4, then the through-hole reflow process is used to realize the welding of the product and PCB plate 2 5, then the product after welding is inserted into PCB plate 2 5 on the other side and reflow welded, so as to realize the connection and conduction of the product and the two PCB plates.

Claims

1. A connector for a double-sided solder plate, comprising: The utility model relates to a connector body (1), its characterized in be: four square needles are inserted through the upper end of the connector body (1) and are once bending forming and have upper row needle (2), four square needles are inserted through the lower end of the connector body (1) and are twice bending forming and have lower row needle (3), the bottom side welding of the connector body (1) has PCB board no.

2. The connector of claim 1, wherein: The connector body (1) top side is equipped with the suction surface (101), and the first welding plate of the connector is inserted into the PCB board no.

3. The connector of claim 1, wherein: The second welding plate of the connector is inserted into the PCB board II (5) by hand.

4. The connector of claim 1, wherein: The connector body (1) bottom side front end is equipped with the tin melting groove (102) that avoids product welding and floats high.

5. The connector of claim 4, wherein: The tin melting groove (102) middle end is fixedly installed with the support block (103) that prevents product from toppling.

6. The connector of claim 1, wherein: The connector body (1) material is plastic, and the connector is connected and used by the double-sided welding plate of PCB board no.

7. The connector of claim 1, wherein: (4) and PCB board II (5), the lower row PIN needle of the connector body (1) is bent on both sides, and the other side is changed by bending twice the distance between the upper row needle and the lower row needle.

8. The connector of claim 1, wherein: The connector body (1) is inserted into the PCB board no.

9. The connector of claim 1, wherein: (4) by automatic production, then realizes the welding of the connector body (1) and the PCB board no. (4) through the through-hole reflow process, inserts the other side of the connector body (1) after welding into the PCB board II (5) and reflow soldering, so as to realize the connection of the connector body (1) and the PCB board no. (4) and PCB board II (5) connection conduction. The center distance between the bottom of the two upper row needles (2) and the lower row needle (3) adjacent to the front side is a, and a is 2.20mm. The center distance between the left of the two upper row needles (2) and the lower row needle (3) adjacent to the rear side is b, and b is 7.62mm.

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