CN211455971U

CN211455971U - Wire clamp terminal

Info

Publication number: CN211455971U
Application number: CN201921385294.9U
Authority: CN
Inventors: 赵磊; 朱建民; 杨猛
Original assignee: Suzhou Weilan Precision Components Co ltd
Current assignee: Shanghai Weilan Industrial Product Design Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-09-08
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a wire clamp terminal, which comprises a main body made of 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, 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; 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. 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.

Description

Wire clamp terminal

Technical Field

The utility model relates to a printed circuit board is with components and parts connection structure, especially a fastener terminal of fixed components and parts is connected through centre gripping mode electricity.

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.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses a fastener terminal, it is assembled to the mainboard through SMT technology for on components and parts can be directly crimping the terminal through the production tool, the terminal is direct punctures the heart yearn of the connecting wire of components and parts, realizes that the electricity of components and parts and circuit board is connected fixedly with the clamping, practices thrift the labour cost, improves production efficiency. And direct disassembly and replacement of components can be realized in the later maintenance process, and the electric connection performance is good.

The utility model discloses a wire clamp terminal, which is used for clamping and fixing an external lead and realizing the electric connection with a core wire, and 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. 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 utility model discloses an improvement of a wire clamp terminal, wherein a wire clamping groove is at least provided with a wire clamping part, at least one pair of clamps of the wire clamping part are arranged in pairs, each pair of clamps arranged in pairs is provided with 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 utility model discloses an improvement of 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 utility model discloses an improvement of fastener terminal, the average interval N1 of two holders of the centre gripping utensil structure on upper strata of setting of wire clamping groove, the average interval N2 of two holders of the centre gripping utensil structure of lower floor, and satisfy N1 and be greater than or equal to N2.

The utility model discloses an improvement of fastener terminal, the wire clamping part of wire clamping groove is being provided with two-layer centre gripping utensil structure from top to bottom at least, and every layer of centre gripping utensil structure all includes two centre gripping utensils, and two centre gripping utensils of the homonymy of adjacent two-layer centre gripping utensil structure directly still are provided with transition portion, and the upper end of transition portion is connected to the lower extreme of these two centre gripping utensils at the centre gripping utensil of top, and the lower extreme of transition portion is connected to the upper end of these two centre gripping utensils in the centre gripping utensil of below.

The utility model discloses an improvement of fastener terminal, the side of transition portion in wire clamping groove is the arc.

The utility model discloses an improvement of fastener terminal, transition portion is in the curved side of wire clamping groove, and its upper end becomes smooth transition with the lower extreme of these two holders above the holder. Here a smooth transition, i.e. both have a tangential structure.

The utility model discloses an improvement of fastener terminal, the bottom of wire clamping groove still is provided with butt joint portion, and butt joint portion has one section at least circular arc structure, and this section circular arc structure sets up in the bottom of wire clamping groove.

The utility model discloses an improvement of fastener terminal, the diameter D of the circular arc structure of butt joint portion, the holder lower extreme minimum distance adjacent with this circular arc structure is L, and D is greater than or equal to L.

The utility model discloses a further improvement of fastener terminal, fastener terminal still are provided with the pin, and the pin is microscler and the main part is connected to the one end electricity of this microscler pin, and the other end is extended by the main part under to the main part below.

In addition, it should be noted that after the terminal of the scheme punctures the outer-coating insulating layer of the lead, the electric connection between the terminal and the lead is realized, the clamping and limiting of the outer-coating insulating layer at the puncture part and the terminal main body are fully utilized, only the part of the outer-coating insulating layer directly cut by the clamping tool is punctured, at least the upper direction and the lower direction are still partially connected, the outer-coating insulating layer still has better connection opening and closing capacity, and therefore the clamping and fixing of the outer-coating insulating layer and the terminal are realized, and a fixing part is not required to be provided. 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 view of an embodiment of a leaded pin of a wire clamp terminal disclosed in the present invention;

fig. 2 and fig. 1 are schematic diagrams illustrating an assembled state of the clip terminal on the PCB board;

fig. 3, fig. 1 illustrate an assembly of the clip terminal on a PCB board;

fig. 4 is a schematic view of an embodiment of a clip terminal without a pin of the present disclosure;

fig. 5 and 4 are schematic diagrams illustrating an assembly state of the clip terminal on the PCB board;

fig. 6 is a schematic structural view of the clamping portion of the wire clamp terminal of the present invention on the inner side wall of the wire clamping groove;

fig. 7 is a schematic view of another structure of the clip terminal of the present invention, in which the clamping portion is located on the inner side wall of the wire clamping groove;

figure 8 is a schematic diagram of an embodiment of a wire clamp terminal of the present invention.

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. and (5) an outer cladding.

Detailed Description

The present invention will be further explained with reference to the following detailed description, which is to be understood as illustrative only and not as limiting the scope of the invention. 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.

The utility model discloses fastener terminal, it has by conductive sheet material sheet, like the sheet metal, 1 structure of stamping forming's main part, its form of fastener terminal after the shaping is nearly "n" shape structure basically-the shoulder structure of the straight direction of upper end promptly and its both sides are by the downward relative structure of setting of shoulder structure bending. As shown in fig. 1 to 8, which are embodiments of the terminal of the present invention, all are visually reflected.

As shown in fig. 1-5, as an illustration of an embodiment of the present invention, the clip terminal is used for clamping and fixing the external wire 7 and realizing the electrical connection with the core wire, and includes a main body 1 made of conductive material, the main body 1 is obtained by stamping the sheet of conductive material through stamping, the whole body is in a nearly "n" shape, a wire clamping groove 2 with an upward opening 22 is disposed at the upper shoulder structure position of the main body 1, the wire clamping groove 2 is used for realizing the clamping of the wire 7, the cutting of the outer cladding 72, and the clamping and the electrical connection with the inner wire core 71;

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. 6-7 is merely a schematic and partial list and is not limited.

When electrical component connects on the mainboard, if connect loudspeaker, camera, LED etc, the utility model discloses a design position of PCB mainboard has been assembled to the mode of fastener terminal and through surface equipment, and the fastener terminal is through the mode cooperation equipment integration of SMT + DIP to the PCB promptly. 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, different from the foregoing, in the solution of the present invention, the vertical cross-section of the pair of holders 211 of the wire-clamping groove 2 is the same straight line, such as "-" shape, or the inclined, such as "eight" shape, etc., which does not affect the implementation of the solution of the present invention.

In addition, as a schematic illustration of another embodiment, different from the foregoing, as shown in fig. 6 to fig. 7, 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 above, as shown in fig. 6-7, the wire clamping portion 21 of the wire clamping groove 2 is at least provided with two layers of clamping tools 211 from top to bottom, each layer of clamping tool 211 comprises two clamping tools 211, two clamping tools 211 on the same side of the adjacent two layers of clamping tools 211 are directly provided with the transition portion 3, the transition portion 3 is arranged to achieve smooth transition of the structures of the upper and lower layers of clamping tools 211, so that the structures have good connectivity and processing, and further, when the diameter of the conducting wire 7 is suitable to be installed on the layer, the transition portion 3 at the bottom of the structure of the layer of clamping tools 211 plays a good supporting role for the conducting wire 7, and the supporting structure of the present disclosure can also shear the outer cladding 72 from the bottom in addition to the side to achieve the purpose of increasing the conducting area of the wire clamping terminal and the wire core 71, 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 of another embodiment of the present invention, different from the above, as shown in fig. 1, 2, and 4, the bottom of the wire clamping groove 2 is further provided with a bottom connection portion 4 of an arc-shaped structure, the bottom connection portion 4 is at first also used as a supporting structure, the installation connection and the support of the minimum model wire 7 satisfied by the wire clamp terminal of the product are realized, and meanwhile, through the cutting of the outer cladding 72 under the continuous stress in the process of pressing down the wire 7, the arc-shaped structure here can also smoothly perform the required part under the required condition, including the outer cladding 72 not limited to the lower part of the wire 7, without applying a large external force, and also can avoid the problems of requiring a larger power consumption and time in the process of enhancing the external force, and further increase 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 another embodiment of the present invention, unlike the previous embodiment, as shown in fig. 1 to 3, the clip terminal has a pin 5 at the bottom, one end electrically connected to the main body 1, and the other end extending downward from the main body 1 to below the main body 1. 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. 8, adopted the utility model discloses a scheme technical scheme's PCB board 6, the utility model discloses a fastener terminal passes through surface mounting technique, assembles the preset position on the PCB board to realized effectively and good electricity with printed circuit and be connected. 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 utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme formed by the arbitrary combination of the technical characteristics. The foregoing is a detailed description of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations are also considered as the protection scope of the present invention.

Claims

1. Fastener terminal, its characterized in that: the wire clamping groove 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;

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 clip terminal as claimed in claim 1, wherein at least one pair of the paired grippers of the wire clamping portion is provided, each pair of the paired grippers having two opposite grippers, each pair of the opposite grippers having a through groove formed therebetween communicating with the opening;

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 wire clamp terminal according to claim 1, wherein the wire clamping portion of the wire clamping groove is provided with at least two layers of clamp structures from top to bottom, each layer of clamp structure comprising two clamps;

4. The clip terminal of claim 3, wherein the average spacing between the two clips of the clip groove disposed in the clip structure of the upper tier is N1, the average spacing between the two clips of the clip structure of the lower tier is N2, and N1 ≧ N2 is satisfied.

5. The clip terminal of claim 3, wherein two clips on the same side of two adjacent layers of clip structures are also directly provided with a transition portion, the upper end of the transition portion being connected to the lower end of the clip above the two clips, and the lower end of the transition portion being connected to the upper end of the clip below the two clips.

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

7. The clip terminal of claim 6 wherein the transition is arcuate in the slot and has an upper end that transitions smoothly with the lower end of the two clips above.

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

9. The wire clamp terminal according to claim 8, wherein the diameter D of the arc structure of the bottom connection portion is L, the minimum distance between the lower ends of the clamps adjacent to the arc structure is L, and D is greater than or equal to L.

10. The clip terminal of any of claims 1-7, further provided with a pin, the pin being elongated and having one end electrically connected to the body and the other end extending downwardly from the body below the body.