阅读说明：本技术 具有线夹端子的pcb板 (PCB board with fastener terminal ) 是由 赵磊 朱建民 杨猛 于 2019-08-23 设计创作，主要内容包括：本发明公开的具有线夹端子的PCB板,其包括PCB板主体以及表面组装到PCB板主体上的线夹端子,线夹端子与PCB板主体上的印刷电路电连接；线夹端子导电材料材质的主体以及设置于主体上部并且向上开口的夹线槽；夹线槽至少具有夹线部,该夹线部至少具有成对设置的夹持具,夹线部的成对设置的夹持具至少设置有一对,该成对设置的夹持具之间形成有与开口连通的贯通的沟槽。本方案广泛适用于PCB上元器件的连接,极大地提高了元器件在PCB板上的连接效率,并且具有良好的电连接质量和连接牢固性。(The invention discloses a PCB board with a wire clamp terminal, which comprises a PCB board main body and the wire clamp terminal assembled on the surface of the PCB board main body, wherein the wire clamp terminal is electrically connected with a printed circuit on the PCB board main body; the wire clamping terminal comprises a main body made of a wire clamping terminal conducting material and a wire clamping groove which is arranged on the upper part of the main body and is opened upwards; the wire clamping groove at least comprises a wire clamping part, the wire clamping part at least comprises clamps arranged in pairs, at least one pair of clamps arranged in pairs of the wire clamping part is arranged, and a through groove communicated with the opening is formed between the clamps arranged in pairs. This scheme extensively is applicable to the connection of components and parts on the PCB, has greatly improved the connection efficiency of components and parts on the PCB board to have good electric connection quality and firm in connection nature.)

1. a PCB board having a clip terminal, which includes a PCB board main body and a clip terminal surface-assembled to the PCB board main body, the clip terminal being electrically connected to a printed circuit on the PCB board main body;

The wire clamp terminal comprises a main body made of a conductive material and a wire clamping groove which is arranged on the upper part of the main body and is opened upwards;

The wire clamping groove at least comprises a wire clamping part, the wire clamping part at least comprises clamps arranged in pairs, and a through groove communicated with the opening is formed between the clamps arranged in pairs;

When the wire in the wire clamping groove is subjected to downward external force and moves downwards from the opening through the groove, the wire is displaced in the groove between the two clamping tools, the outer cladding of the wire is subjected to shearing force applied to the wire from the lateral direction by the clamping tools in the moving process to be cut, the cutting depth is at least as far as the wire core conductor of the wire, and the clamping tools are clamped and electrically connected with the wire core conductor.

2. The PCB board with the clip terminal as claimed in claim 1, wherein the clip groove has at least a clip portion, at least one pair of the paired holders of the clip portion is provided, each pair of the paired holders has two opposite holders, and each pair of the paired holders has a through groove communicating with the opening formed therebetween;

When the wire in the wire clamping groove is subjected to downward external force and moves downwards from the opening through the groove, the wire is displaced in the groove between the two oppositely arranged clamping tools, the outer cladding of the wire is subjected to shearing force applied to the outer cladding from the lateral direction by the clamping tools in the moving process to be cut, the cutting depth is at least as far as a wire core conductor of the wire, and the clamping tools are clamped and electrically connected with the wire core conductor.

3. The PCB board with the wire clamp terminal as claimed in claim 1, wherein the wire clamping part of the wire clamping groove is provided with at least two layers of clamp structures from top to bottom, each layer of clamp structure comprises two clamps;

The distance between the upper ends of the two clamps of each layer of clamp structure is S1, the distance between the lower ends of the two clamps of each layer of clamp structure is S2, and the average distance N between the two clamps of each layer of clamp structure is (S1+ S2)/2.

4. the PCB board with the wire clamp terminal as claimed in claim 3, wherein the average distance N1 between the two clamps of the clamp structure at the upper layer and the average distance N2 between the two clamps of the clamp structure at the lower layer are arranged in the wire clamp groove, and N1 is equal to or greater than N2.

5. The PCB board with the wire clamp terminal as claimed in claim 3, wherein the wire clamping part of the wire clamping groove is provided with at least two layers of clamp structures from top to bottom, each layer of clamp structure comprises two clamps, two clamps on the same side of the adjacent two layers of clamp structures are directly provided with a transition part, the upper end of the transition part is connected to the lower end of the upper clamp of the two clamps, and the lower end of the transition part is connected to the upper end of the lower clamp of the two clamps.

6. The PCB board with the clip terminal of claim 5, wherein the transition portion is arcuate in shape on a side within the clip slot.

7. The PCB board with clip terminals as claimed in claim 6, wherein the transition part is at the side of the arc in the clip groove, the upper end of which is in smooth transition with the lower end of the two clips above.

8. The PCB board with the clip terminal as claimed in any one of claims 1 to 7, wherein the bottom of the clip groove is further provided with a bottom part having at least one segment of a circular arc structure provided at the bottom of the clip groove.

9. The PCB board with the clip terminal as claimed in claim 8, wherein the diameter D of the arc structure of the bottom connection part, the minimum distance between the lower ends of the clamps adjacent to the arc structure is L, and D is more than or equal to L.

10. The PCB board with the clip terminal as claimed in any one of claims 1 to 7, wherein the clip terminal is further provided with a pin, the pin is elongated and one end of the elongated pin is electrically connected to the main body and the other end extends downward from the main body to below the main body.

Technical Field

the invention relates to a component connecting technology for a printed circuit board, in particular to a PCB board applying the related technology of a wire clamp terminal for electrically connecting and fixing components in a clamping mode.

Background

The printed circuit board, also known as printed circuit board, printed board for short, pcb (printed circuit board) for short, or pwb (printed wiring board), is cut into a certain size by using an insulating board as a base material, and at least one conductive pattern is attached to the insulating board and is provided with holes (such as element holes, fastening holes, metalized holes, and the like) for replacing a chassis of an electronic component in the prior art and realizing the mutual connection of the electronic component. Such boards are known as "printed" circuit boards because they are made using electronic printing. It is not exact to custom refer to a "printed wiring board" as a "printed circuit" because there are no "printed components" on the printed board, but only wiring.

At present, electronic components on a PCB mainboard, such as a loudspeaker of a voice frequency common-playing system on a mobile phone mainboard and the like, are connected by adopting a manual soldering mode to be welded to corresponding positions, and the mode needs manual welding one by one, so that the time consumption is long, the efficiency is low, the productivity is low, and the cost is high.

Disclosure of Invention

In order to solve the problems, the innovative wire clamp terminal is assembled on the PCB with the wire clamp terminal through the SMT process, so that a component can be directly connected to the terminal through a production jig in a pressing mode, the terminal directly punctures a core wire of a connecting wire of the component, the electrical connection and clamping fixation of the component and the circuit board are achieved, labor cost is saved, and production efficiency is improved. And direct disassembly and replacement of components can be realized in the later maintenance process, and the electric connection performance is good.

the PCB with the wire clamp terminal is used for clamping and fixing an external lead and realizing the electric connection with a core wire, and comprises a PCB main body and the wire clamp terminal, wherein the surface of the wire clamp terminal is assembled on the PCB main body, and the wire clamp terminal is electrically connected with a printed circuit on the PCB main body;

The wire clamping terminal comprises a main body made of a wire clamping terminal conducting material and a wire clamping groove which is arranged on the upper part of the main body and is opened upwards;

the wire clamping groove at least comprises a wire clamping part, the wire clamping part at least comprises clamps arranged in pairs, and a through groove communicated with the opening is formed between the clamps arranged in pairs;

When the wire in the wire clamping groove is subjected to downward external force and moves downwards from the opening through the groove, the wire is displaced in the groove between the two clamping tools, the outer cladding of the wire is subjected to shearing force applied to the wire from the lateral direction by the clamping tools in the moving process to be cut, the cutting depth is at least as far as the wire core conductor of the wire, and the clamping tools are clamped and electrically connected with the wire core conductor. The outer cladding is severed by destruction and the clamping and electrical connection of the clamping tool to the conductor of the conductor core is effected.

The invention discloses an improvement of a PCB board with a wire clamp terminal, wherein a wire clamping groove at least has a wire clamping part, at least one pair of clamps arranged in pairs of the wire clamping part is provided, each pair of clamps arranged in pairs has two opposite clamps, and a through groove communicated with an opening is formed between each pair of opposite clamps;

When the wire in the wire clamping groove is subjected to downward external force and moves downwards from the opening through the groove, the wire is displaced in the groove between the two oppositely arranged clamping tools, the outer cladding of the wire is subjected to shearing force applied to the outer cladding from the lateral direction by the clamping tools in the moving process to be cut, the cutting depth is at least as far as a wire core conductor of the wire, and the clamping tools are clamped and electrically connected with the wire core conductor. Here the breaking cuts the outer cladding and effects the clamping and electrical connection of the clamp with the conductor of the conductor core.

the invention discloses an improvement of a PCB board with a wire clamp terminal, wherein a wire clamping part of a wire clamping groove is at least provided with two layers of clamping tool structures from top to bottom, and each layer of clamping tool structure comprises two clamping tools;

The distance between the upper ends of the two clamps of each layer of clamp structure is S1, the distance between the lower ends of the two clamps of each layer of clamp structure is S2, and the average distance N between the two clamps of each layer of clamp structure is (S1+ S2)/2.

The invention discloses an improvement of a PCB board with a wire clamp terminal, wherein the wire clamp groove is arranged at the average distance N1 between two clamps of an upper-layer clamp structure, and the average distance N2 between the two clamps of a lower-layer clamp structure, and N1 is more than or equal to N2.

The invention discloses an improvement of a PCB board with a wire clamp terminal, wherein a wire clamping part of a wire clamping groove is at least provided with two layers of clamping tool structures from top to bottom, each layer of clamping tool structure comprises two clamping tools, two clamping tools on the same side of the two adjacent layers of clamping tool structures are directly provided with a transition part, the upper ends of the transition parts are connected to the lower ends of the clamping tools above the two clamping tools, and the lower ends of the transition parts are connected to the upper ends of the clamping tools below the two clamping tools.

The invention discloses an improvement of a PCB with a wire clamp terminal, wherein the side surface of a transition part in a wire clamping groove is arc-shaped.

The invention discloses an improvement of a PCB board with a wire clamp terminal, wherein a transition part is arranged on an arc-shaped side surface in a wire clamping groove, and the upper end of the transition part and the lower end of a clamping tool above the two clamping tools form smooth transition. Here a smooth transition, i.e. both have a tangential structure.

The invention discloses an improvement of a PCB with a wire clamp terminal, wherein a bottom connection part is also arranged at the bottom of a wire clamping groove, and the bottom connection part is provided with at least one section of circular arc structure which is arranged at the bottom of the wire clamping groove.

the invention discloses an improvement of a PCB with a wire clamp terminal, wherein the diameter D of an arc structure of a bottom connection part and the minimum distance of the lower end of a clamping tool adjacent to the arc structure are L, and D is more than or equal to L.

the invention discloses a further improvement of the PCB board with the wire clamp terminal, the wire clamp terminal is also provided with a pin, the pin is long, one end of the long pin is electrically connected to the main body, and the other end of the long pin extends downwards from the main body to the lower part of the main body.

in addition, it should be noted that, the structure of the wire clamping groove of the wire clamp terminal on the PCB in the scheme is after the outer-coating insulating layer of the wire is punctured, not only the electric connection between the terminal and the wire is realized, but also the clamping connection between the outer-coating insulating layer of the punctured part and the terminal main body is fully utilized, only the part of the outer-coating insulating layer directly cut with the clamping tool is punctured, at least the upper and the lower directions are still partially connected, the outer-coating insulating layer still has better connection opening and closing capability, thereby realizing the clamping fixation between the terminal and the outer-coating insulating layer, and enabling the outer-coating insulating layer not to provide a fixing part. And the tight clamping of the outer insulating layer also realizes good sealing performance, and effectively reduces the probability that the electric connection part is polluted, corroded and oxidized in long-term use, thereby prolonging the service life of the electric connection part.

Drawings

FIG. 1 is a schematic diagram of a PCB board having a clip terminal of the present invention;

FIG. 2 is a schematic diagram illustrating one embodiment of a leaded pin of a clip terminal on a PCB board having a clip terminal of the present disclosure;

Fig. 3, fig. 1 illustrate an assembled state of the clip terminal on the PCB board;

fig. 4, fig. 1 illustrate an assembly of the clip terminal on a PCB board;

FIG. 5 is a schematic diagram illustrating one embodiment of a leadless pin for a clip terminal on a PCB board having a clip terminal according to the present disclosure;

Fig. 6 and 4 are schematic diagrams illustrating an assembly state of the clip terminal on the PCB board;

FIG. 7 is a schematic structural diagram of a clip terminal on a PCB board having a clip terminal, according to the present invention, in which a clamping portion of the clip terminal is located on an inner side wall of a wire clamping groove;

FIG. 8 is a schematic view of another embodiment of a clip terminal on a PCB board having a clip terminal according to the present invention, wherein the clip portion of the clip terminal is disposed on the inner side wall of a clipping slot;

FIG. 9 is a schematic diagram illustrating one embodiment of a clip terminal wire clip assembly on a PCB board having a clip terminal of the present disclosure.

List of reference numerals: 1. a main body; 2. a wire clamping groove; 21. a wire clamping part; 211. a holder; 22. an opening; 23. a trench; 3. a transition section; 4. a bottom connection part; 41. a circular arc structure; 5. a pin; 6. a PCB board; 61. assembling holes; 7. a wire; 71. a wire core; 72. an outer cladding; 8. a wire clamp terminal.

Detailed Description

The present invention is further illustrated by the following specific embodiments, which are to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever. The upper, lower, left and right directions in the whole text are only used for matching with the directions on the drawings of the specification, are set for facilitating the understanding of the technical scheme, and are not used for limiting the corresponding protection scope.

As shown in fig. 1, the PCB board of the present invention is assembled to obtain the clip terminals of the present invention through a surface assembly process according to a design process of a printed circuit at positions where electrical components such as a speaker are originally required to be soldered, corresponding to soldering positions of connection wires of the components, and the number of the adopted clip terminals required for each component is correspondingly set corresponding to the number of the connection wires of the component.

The circuit board clip terminal can be flexibly arranged without being similar to a welding mode, and a connecting wire of an element is extended, so that the assembly position of the clip terminal is flexibly arranged, and the occupation of key positions on a PCB (printed circuit board) is avoided.

The wire clamp terminal adopted by the scheme of the invention has a main body 1 structure formed by punching a conductive sheet material, such as a metal sheet material, and the shape of the formed wire clamp terminal is basically an n-shaped structure, namely a shoulder structure in the straight direction of the upper end and a downward-folded structure which is oppositely arranged and bent downwards by the shoulder structure at the two sides. As shown in fig. 1-8, which are embodiments of the clip terminal of the present invention, are all intuitive.

As shown in fig. 2-6, as an illustration of an embodiment of the invention, the clip terminal, which is used for clamping and fixing the external lead 7 and realizing the electrical connection with the core wire, includes a main body 1 made of a conductive material, the main body 1 is obtained by stamping a sheet of a conductive material, the whole body is in a nearly "n" shape, a wire clamping groove 2 with an upward opening 22 is opened at the upper shoulder structure position of the main body 1, the wire clamping groove 2 is used for realizing the clamping of the lead 7, the cutting of the outer cladding 72 and the clamping and electrical connection with the inner core wire 71 in the solution of the invention;

The inner side part of the wire clamping groove 2 is provided with a vertical wire clamping part 21 arranged along the groove extending direction, the wire clamping part 21 is provided with two clamps 211 arranged in pairs, each pair of clamps 211 is provided with two clamps, the clamps 21 are respectively positioned at two sides of the wire clamping groove 2, the parts of the clamps 211 which apply shearing force to the wires 7 and cut the wires in an invasive way can be arranged oppositely, at least one pair of clamps 211 arranged in pairs of the wire clamping part 21 is arranged, and a through groove 23 communicated with the opening 22 is formed between the clamps 211 arranged in pairs; it should be noted that the paired arrangement does not require the corresponding holders 211 to have the same or similar structure to each other, but only refers to a structure that can apply shearing force to the corresponding type of wires 7 to perform cutting and electrical connection when they are mutually matched at the same level, and the symmetrical structure of fig. 7-8 is only a schematic and partial list and is not limited.

when electrical elements on the main board are connected, such as a loudspeaker, a camera, an LED and the like, the wire clamping terminal is assembled at the design position of the PCB main board in a surface assembly mode, namely the wire clamping terminal is assembled and integrated on the PCB in a matching mode of SMT + DIP. During installation, by means of the implementation of the scheme, the connecting lead 7 of the electric element to be installed can be directly placed in the wire clamping groove 2 of the wire clamp terminal on two sides of the corresponding installation position under the condition that the outer cladding 72 of the connecting part is reserved, namely the outer cladding 72 of the corresponding position is not stripped as required by the traditional welding process, the core 71 conductor of the lead 7 of the welding part is exposed, the lead 7 is directly placed in the wire clamping groove 2 of the wire clamp terminal on two sides of the corresponding installation position, and then the lead 7 in the groove can be pressed down to the proper position through manpower or a robot or matched equipment, so that the installation, the fixation and the electric connection of the electric element are realized, the lead 5 does not need to be welded one by one as required by the traditional welding process, the batch processing can be carried out, the installation and connection process is greatly. When the wire 7 in the wire clamping groove 2 is subjected to a downward external force, the wire 7 moves downwards from the opening 22 through the groove 23, the wire 7 is displaced in the groove 23 between the two clamping tools 211, the outer cladding 72 of the wire 7 is subjected to a shearing force applied to the wire 7 from the lateral direction by the clamping tools 211 in the moving process to be cut, the cutting depth is at least as far as the conductor of the wire core 71 of the wire 7, and the clamping tools 211 are clamped and electrically connected with the conductor of the wire core 71 of the wire 7.

it should be noted that, as an illustration of another embodiment, in the solution of the invention, the pair of clamps 211 of the slot 2 have vertical sections that are collinear, i.e. have vertical sections, different from the previous onesThe shape or the inclined shape such as the figure of eight does not influence the implementation of the scheme of the invention.

In addition, as a schematic illustration of another embodiment, different from the foregoing, as shown in fig. 7-8, at least one pair of clamps 211 is provided on the clamps 211 arranged in pairs from top to bottom of the wire clamping groove 2, that is, from the opening 22 at the upper end to the bottom of the wire clamping groove 2. In order to meet the requirements of mounting, fixing, electrical connection and the like of the wires 7 with different types, namely, to realize the connection function of the electrical elements with different connecting wires 7, when a plurality of pairs of clamps 211 are arranged, the average distance between each pair of clamps 211 from top to bottom should be such that the average distance between the clamps 211 on the lower layer is not greater than the average distance between the clamps 211 on the upper layer. Regarding the calculation of the average distance between the clamps 211, as shown in fig. 6-7, the distance between the upper ends of the two clamps 211 of each layer of clamps 211 is S1, the distance between the lower ends of the two clamps 211 of each layer of clamps 211 is S2, the average distance N between the two clamps 211 of each layer of clamps 211 is (S1+ S2)/2, the average distance N1 between the two clamps 211 of the upper layer of clamps 211 of the wire clamping groove 2, and the average distance N2 between the two clamps 211 of the lower layer of clamps 211 structure satisfy N1 ≧ N2.

As a schematic illustration of another embodiment of the solution of the present invention, different from the foregoing, as shown in fig. 7-8, the wire clamping portion 21 of the wire clamping groove 2 is provided with at least two layers of clamping devices 211 from top to bottom, each layer of clamping device 211 structure includes two clamping devices 211, two clamping devices 211 on the same side of the adjacent two layers of clamping devices 211 structures are directly provided with the transition portion 3, the transition portion 3 is provided for realizing smooth transition of the upper and lower layers of clamping devices 211 structures, so that they have good connectivity and processing, and further, when the diameter of the wire 7 is suitable to be installed on this layer, the transition portion 3 at the bottom of the layer of clamping device 211 structure plays a good receiving support for the wire 7, and the receiving structure here can also shear the outer cladding 72 from the bottom in addition to the side to realize the purpose of increasing the conductive area of the wire clamping terminal and the wire core 71 when needed, thereby enhancing the electrical connection performance of the two. In this case, the transition portion 3 as a transition structure between the two layers of the holders 211 is configured such that the upper end of the transition portion 3 is connected to the lower end of the upper holder 211 of the two holders 211, and the lower end of the transition portion 3 is connected to the upper end of the lower holder 211 of the two holders 211. Preferably, the inner wall of the transition part 3 in the groove is arc-shaped, so that good connection between the upper layer and the lower layer is realized, the machining performance and the structural strength are good, the arc-shaped structure has better pressure resistance, and scrap accidents such as deformation and the like are not easy to generate in the process of installing and pressing down the lead 7. And further, when the lower end of the upper clamping fixture 211 is in smooth transition, the smooth transition part 3 structure can obtain effective support when the lead 7 reaches the position, and when the outer cladding 72 of the lead 7 needs to be damaged from the bottom, the smooth transition part 3 structure can also utilize the shearing action of the smooth structure, namely the smooth shearing from the side edge notch, so that the efficient cutting of the corresponding position at the bottom can be effectively realized without applying larger external force, and the probability of structural deformation and product scrapping is increased besides the requirement of larger power consumption and time.

as a schematic illustration of another embodiment of the solution of the present invention, different from the above, as shown in fig. 2, 3 and 5, the bottom of the wire clamping groove 2 is further provided with a bottom connection portion 4 having an arc-shaped structure, and the bottom connection portion 4 is also used as a support structure, and at the same time, the installation connection and the support of the minimum-sized wire 7 satisfied by the wire clamping terminal of the present product are realized, and the outer covering 72 is cut under continuous stress in the process of pressing down the wire 7, and the arc-shaped structure here can also successfully cut and crack the required portion, including the outer covering 72 not limited to the lower portion of the wire 7, without applying a large external force, and can also avoid the problems of requiring larger power consumption and time in the process of enhancing the external force, and increasing the probability of structural deformation and product scrapping. Of course, when the circular arc structure 41 is only a receiving structure at the bottom of the wire clamping groove 2, it is necessary to match with the holding tool 211 arranged at the upper side, and in this case, the diameter D of the circular arc structure 41 of the bottom connection part 4 is L, the minimum distance between the lower ends of the holding tools 211 adjacent to the circular arc structure 41 is L, and D ≧ L. The arc structure 41, independently, serves as a minimum receiving structure, and the cutting-in fixing and receiving functions of the holder 211 can be satisfied.

as an illustration of a further embodiment of the solution of the invention, the clip terminal has a pin 5 at the bottom, one end electrically connected to the body 1 and the other end extending from the body 1 down below the body 1, as shown in fig. 2-4. This arrangement is a connection method for surface mounting on the PCB 6, and the PCB 6 has an assembly hole 61 structure corresponding to the position of the pin 5, and the pin 5 is fixedly connected to the assembly hole 61, so that the clip terminal is fixed. In addition, as shown in fig. 4-5, when the clip terminal with the structure without the lead 5 is adopted, other methods, such as welding, adhesion and the like, can be adopted for surface mounting and fixing, and similar effects can be achieved.

As shown in fig. 9, with the PCB 6 according to the present invention, the clip terminal of the present invention is assembled to a predetermined position on the PCB by a surface assembly technique, and is electrically connected to the printed circuit effectively and well. Then, when connecting electronic components such as a horn and the like to the designed positions on the PCB 6, a downstream manufacturer only needs to connect each connecting lead 7 on the components through the corresponding wire clamp terminal, specifically, the connecting mode is that the lead 7 is pressed down into the wire clamping groove 2 from the position of the opening 22, in the whole pressing down process, the clamping tool 211 of the clamping part matched with the type of the lead 7, namely the diameter of the outer cladding 72 or the diameter of the wire core 71, applies a shearing force to the outer cladding 72 to cut the outer cladding 72, and finally contacts or partially cuts the wire core 71 to realize effective electrical connection with the lead 7. The operation can be carried out manually or by adopting equipment with matched design.

The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics. While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes may be made in the embodiments without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.