Ultrathin double-sided crimping connector

Abstract

The utility model discloses an ultrathin double-sided crimping connector, comprising a PCB, the upper and lower end surfaces of which are respectively provided with a plurality of upper and lower conductors; one upper conductor is conducted with at least one lower conductor, or one lower conductor is conducted with at least one upper conductor; the upper terminal module comprises an upper insulating plate and a plurality of upper terminals fixed in the upper insulating plate, upper contact elastic arms of the upper terminals extend out of the upper end face of the upper insulating plate, and upper elastic pins of the upper terminals protrude out of the lower end face of the upper insulating plate; the lower terminal module comprises a lower insulating plate and a plurality of lower terminals fixed in the lower insulating plate, lower contact elastic arms of the lower terminals extend out of the lower end face of the lower insulating plate, and lower elastic pins of the lower terminals protrude out of the upper end face of the lower insulating plate; the upper terminal module and the lower terminal module are respectively attached to the upper end and the lower end of the PCB, and the upper elastic pin and the lower elastic pin are respectively in elastic abutting contact with the upper conductor and the lower conductor and are welded and fixed; one upper terminal is conducted with at least one lower terminal, or one lower terminal is conducted with at least one upper terminal.

Description

Technical field:

[0001] The utility model relates to the technical field of connector products, in particular to an ultra-thin double-sided crimping connector. Background technology:

[0002] Electrical connectors are used to realize electrical connection between components. They not only realize electrical connection, but also signal connection, ensuring the stable operation of the device / equipment.

[0003] The Chinese utility model patent with patent number CN202020359373.9 discloses a multi-contact connector, including a plastic housing, provided with a plurality of terminal configuration holes; and also including an S-shaped terminal, which is inserted into the terminal configuration hole; the S-shaped terminal has an upper arm portion, a waist portion and a lower arm portion, and the position where the waist portion is connected to the lower arm portion is torn and bent to form an elastic buckle; the terminal configuration hole has a stepped portion and a buckle portion; when the S-shaped terminal is inserted into the terminal configuration hole, the front, rear, left and right sides of the waist of the S-shaped terminal respectively press against the front, rear, left and right sides of the terminal configuration hole, thereby limiting the front, rear, left and right directions of the S-shaped terminal, the lower side of the waist of the S-shaped terminal presses against the upper side of the stepped portion of the terminal configuration hole, thereby limiting the lower direction of the S-shaped terminal, and the elastic buckle of the S-shaped terminal is snapped into the buckle portion of the terminal configuration hole, thereby limiting the upper direction of the S-shaped terminal. The terminal limit is precise, the active gap is small, the height size of the contact point can be controlled stably, and the contact positive force is also relatively stable.

[0004] The above-mentioned multi-contact connector has the following shortcomings: first, the structure of the S-shaped terminal is complex and requires many processes to manufacture; in addition, the upper arm and the lower arm of the S-shaped terminal extend out of the upper and lower end surfaces of the plastic shell respectively, and then connect with two matching connectors / PCB boards respectively, which can only realize single-point to single-point conduction at the upper and lower positions, and cannot meet the use requirements of single-point to multi-point conduction.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The utility model aims to overcome the deficiencies of the prior art and provide an ultra-thin double-sided crimping connector.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: the ultra-thin double-sided crimping connector comprises: a PCB board, a plurality of upper conductors are arranged on the upper end surface of the PCB board, and a plurality of lower conductors are arranged on the lower end surface of the PCB board; an upper conductor is connected to at least one lower conductor, or the lower conductor is connected to at least one upper conductor; an upper terminal module comprises an upper insulating plate and a plurality of upper terminals inserted and fixed in the upper insulating plate, an upper contact elastic arm of the upper terminal extends out of the upper end surface of the upper insulating plate, and an upper elastic pin of the upper terminal protrudes out of the lower end surface of the upper insulating plate, A lower terminal module comprises a lower insulating plate and a plurality of lower terminals inserted and fixed in the lower insulating plate, wherein the lower contact elastic arm of the lower terminal extends out of the lower end surface of the lower insulating plate, and the lower elastic pin of the lower terminal protrudes out of the upper end surface of the lower insulating plate; an upper terminal module is mounted on the upper end of a PCB board, and the lower terminal module is mounted on the lower end of the PCB board, the upper elastic pin is elastically pressed in contact with the upper conductor and fixed by welding, and the lower elastic pin is elastically pressed in contact with the lower conductor and fixed by welding; an upper terminal is connected to at least one lower terminal, or the lower terminal is connected to at least one upper terminal.

[0008] Furthermore, in the above technical solution, the upper terminal includes a first main body portion, the upper contact spring arm bent and formed at the front end of the first main body portion and in an inclined state, and an upper elastic pin bent and formed after being torn along the rear end of the first main body portion, the lower end surface of the upper elastic pin protrudes outside the lower end surface of the first main body portion, the first main body portion is inserted and fixed in the upper insulating plate, and the upper contact spring arm passes through the first upper window set on the upper insulating plate from bottom to top to extend outside the upper end surface of the upper insulating plate.

[0009] Furthermore, in the above technical solution, a first mounting groove connected to the first upper window is provided on the lower end surface of the upper insulating plate, and first clamping grooves are provided on both sides of the first mounting groove; first clips are also provided on both sides of the first main body, and the first main body is inserted into the first mounting groove, and the first clip is engaged with the first clamping groove to position the first main body, so that the first main body is fixed in the first mounting groove.

[0010] Furthermore, in the above technical solution, the upper insulating plate is provided with a first welding window beside the first upper window, and the first welding window is located above the upper elastic pin.

[0011] Furthermore, in the above technical solution, the lower end surface of the upper insulating plate is provided with a first avoidance groove connected to the first installation groove, so that a gap is formed between the lower end surface of the first main body and the upper end surface of the PCB board, and the upper elastic pin protrudes out of the first avoidance groove.

[0012] Furthermore, in the above technical solution, the structure of the lower terminal is the same as that of the upper terminal, and the structure of the lower insulating plate is also the same as that of the upper insulating plate, and the assembly structure of the lower terminal and the lower insulating plate is also the same as that of the upper terminal and the upper insulating plate.

[0013] Furthermore, in the above technical solution, the upper terminal and the lower terminal are distributed in mirror symmetry, and the orientation of the upper contact elastic arm is the same as that of the lower contact elastic arm.

[0014] Furthermore, in the above technical solution, the upper terminal and the lower terminal are distributed in 180-degree rotational symmetry, and the direction of the upper contact elastic arm is opposite to the direction of the lower contact elastic arm.

[0015] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model adopts a PCB board to conduct the upper terminal located at the upper end and the lower terminal located at the lower end, which can simplify the structure of the upper terminal and the lower terminal, making the structure of the upper terminal and the lower terminal simpler, easier to manufacture, and more efficient; and the upper elastic pin of the upper terminal protrudes from the lower end surface of the upper insulating plate, and the lower contact elastic arm of the lower terminal extends out of the lower end surface of the lower insulating plate, so that the ultra-thin double-sided crimping connector of the utility model can achieve double-sided crimping conduction to meet the use requirements, and the one upper terminal is conducted with at least one lower terminal, or the one lower terminal is conducted with at least one upper terminal, so that not only the upper terminal and the lower terminal corresponding to the upper and lower positions can be conducted from single point to single point, but also the upper terminal and the lower terminal that do not correspond to the upper and lower positions can be conducted from single point to multi-point, so as to meet different use requirements and be more flexible and convenient to use. Description of the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a stereogram of another viewing angle of the utility model;

[0018] Figure 3 It is an assembly diagram of the upper terminal and the PCB board in the utility model;

[0019] Figure 4 It is a three-dimensional exploded view of the utility model;

[0020] Figure 5 It is a cross-sectional view of the utility model;

[0021] Figure 6 It is a three-dimensional diagram (partial) of the upper insulator of the utility model;

[0022] Figure 7 It is an assembly diagram (partial) of the upper insulator and the upper terminal in the utility model;

[0023] Figure 8 It is a three-dimensional diagram of the upper terminal in the utility model;

[0024] Fig. 9 It is a stereogram of the upper terminal in another perspective of the utility model;

[0025] Fig.10 It is a cross-sectional view (partial) of another distribution mode of the upper terminal and the lower terminal in the utility model. Specific implementation method:

[0026] The utility model is further described below in conjunction with specific embodiments and drawings.

[0027] See Figure 1-10 As shown, an ultra-thin double-sided crimping connector includes: a PCB board 1, an upper terminal module 200, and a lower terminal module 400, wherein the upper terminal module 200 is mounted on the upper end of the PCB board 1 to form electrical conduction; the lower terminal module 400 is mounted on the lower end of the PCB board 1 to form electrical conduction.

[0028] The upper end surface of the PCB board 1 is provided with a plurality of upper conductors 11, and the lower end surface of the PCB board 1 is provided with a plurality of lower conductors 12; one upper conductor 11 is connected to at least one lower conductor 12, or one lower conductor 12 is connected to at least one upper conductor 11; the upper terminal module 200 includes an upper insulating plate 2 and a plurality of upper terminals 3 inserted and fixed in the upper insulating plate 2, the upper contact elastic arm 32 of the upper terminal 3 extends out of the upper end surface of the upper insulating plate 2, and the upper elastic pin 33 of the upper terminal 3 protrudes out of the lower end surface of the upper insulating plate 2; the lower terminal The module 400 includes a lower insulating plate 4 and a plurality of lower terminals 5 inserted and fixed in the lower insulating plate 4, wherein the lower contact spring arm 51 of the lower terminal 5 extends out of the lower end surface of the lower insulating plate 4, and the lower elastic pin 52 of the lower terminal 5 protrudes out of the upper end surface of the lower insulating plate 4, the upper elastic pin 33 elastically presses and contacts the upper conductor 11 and is welded and fixed, and the lower elastic pin 52 elastically presses and contacts the lower conductor 12 and is welded and fixed; so that an upper terminal 3 is electrically connected to at least one lower terminal 5, or, the lower terminal 5 is electrically connected to at least one upper terminal 3. That is to say, the utility model adopts a PCB board 1 to conduct the upper terminal 3 located at the upper end and the lower terminal 5 located at the lower end, which can simplify the structure of the upper terminal 3 and the lower terminal 5, making the structure of the upper terminal 3 and the lower terminal 5 simpler, easier to manufacture, and more efficient; and the upper elastic pin 33 of the upper terminal 3 protrudes from the lower end surface of the upper insulating plate 2, and the lower contact elastic arm 51 of the lower terminal 5 extends out of the lower end surface of the lower insulating plate 4, so that the ultra-thin double-sided crimping connector of the utility model can achieve double-sided crimping conduction to meet the use requirements, and the one upper terminal 3 is conducted with at least one lower terminal 5, or the one lower terminal 5 is conducted with at least one upper terminal 3, so that not only the upper terminal 3 and the lower terminal 5 corresponding to the upper and lower positions can be conducted from single point to single point, but also the upper terminal 3 and the lower terminal 5 not corresponding to the upper and lower positions can be conducted from single point to multi-point, so as to meet different use requirements and be more flexible and convenient to use.

[0029] The structure of the upper terminal 3 and the assembly structure of the upper terminal 3 and the upper insulating plate 2 are described in detail below:

[0030] The upper terminal 3 includes a first main body 31, an upper contact elastic arm 32 bent and formed at the front end of the first main body 31 and in an inclined state, and an upper elastic pin 33 torn and bent along the rear end of the first main body 31, and the lower end surface of the upper elastic pin 33 protrudes outside the lower end surface of the first main body 31, wherein the upper elastic pin 33 and the first main body 31 are distributed parallel to each other; when the upper terminal 3 is assembled with the upper insulating plate 2, the first main body 31 is inserted and fixed in the upper insulating plate 2, and the upper contact elastic arm 32 passes through the first upper window 21 provided on the upper insulating plate 2 from bottom to top to protrude outside the upper end surface of the upper insulating plate 2, and the upper elastic pin 33 of the upper terminal 3 protrudes outside the lower end surface of the upper insulating plate 2.

[0031] Among them, the lower end surface of the upper insulating plate 2 is provided with a first mounting groove 22 connected to the first upper window 21, and the first clamping groove 23 is provided on both sides of the first mounting groove 22; the first main body 31 is also provided with a first buckle 311 on both sides. When the upper terminal 3 is assembled with the upper insulating plate 2, the first main body 31 is inserted into the first mounting groove 22, and the first buckle 311 is engaged and positioned with the first clamping groove 23, so that the first main body 31 is fixed in the first mounting groove 22, and then the upper terminal 3 is inserted and fixed in the upper insulating plate 2, and its assembly structure is stable.

[0032] In order to realize welding of the upper elastic pin 33, a first welding window 24 is provided on the upper insulating plate 2 beside the first upper window 21, and the first welding window 24 is located above the upper elastic pin 33. After the upper elastic pin 33 and the upper conductor 11 are elastically pressed into contact, the upper elastic pin 33 and the upper conductor 11 are welded and fixed by laser welding, and the design of the first welding window 24 is to realize laser welding.

[0033] The lower end surface of the upper insulating plate 2 is provided with a first avoidance groove 25 connected to the first mounting groove 22, so that a gap is formed between the lower end surface of the first main body 31 and the upper end surface of the PCB board 1, and the upper elastic pin 33 protrudes out of the first avoidance groove 25, so that after the upper terminal module 200 is mounted on the upper end of the PCB board 1, a gap is formed between the upper insulating plate 2 and the upper end surface of the PCB board 1, and a gap is formed between the lower end surface of the first main body 31 of the upper terminal 3 and the upper end surface of the PCB board 1, and only the upper elastic pin 33 protrudes out of the first avoidance groove 25, so that it can be elastically pressed and contacted with the upper conductor 11 on the upper end surface of the PCB board 1, so as to ensure the quality of subsequent conduction and avoid the problem of short circuit between the upper terminals.

[0034] The structure of the lower terminal 5 is the same as that of the upper terminal 3, and the same technical effect can be achieved. The structure of the lower insulating plate 4 is also the same as that of the upper insulating plate 2, and the same technical effect can be achieved. The assembly structure of the lower terminal 5 and the lower insulating plate 4 is also the same as the assembly structure of the upper terminal 3 and the upper insulating plate 2, and the same technical effect can be achieved, which will not be repeated here one by one.

[0035] The distribution modes of the upper terminals 3 and the lower terminals 5 include at least the following two types:

[0036] The first distribution mode is: the upper terminal 3 and the lower terminal 5 are distributed in a mirror-symmetrical manner, and the direction of the upper contact elastic arm 32 is the same as that of the lower contact elastic arm 51. Figure 4 , Figure 5 shown.

[0037] The second distribution mode is: the upper terminal 3 and the lower terminal 5 are 180 degrees rotationally symmetrically distributed, and the direction of the upper contact elastic arm 32 is opposite to the direction of the lower contact elastic arm 51, see Fig.10 shown.

[0038] The distribution mode of the upper terminals 3 and the lower terminals 5 can be selected according to actual use requirements, and it is extremely flexible and convenient to use.

[0039] In summary, the utility model adopts a PCB board 1 to conduct the upper terminal 3 located at the upper end and the lower terminal 5 located at the lower end, which can simplify the structure of the upper terminal 3 and the lower terminal 5, making the structure of the upper terminal 3 and the lower terminal 5 simpler, easier to manufacture, and more efficient; and the upper elastic pin 33 of the upper terminal 3 protrudes from the lower end surface of the upper insulating plate 2, and the lower contact elastic arm 51 of the lower terminal 5 extends out of the lower end surface of the lower insulating plate 4, so that the ultra-thin double-sided crimping connector of the utility model can achieve double-sided crimping conduction to meet the use requirements, and the one upper terminal 3 is conducted with at least one lower terminal 5, or the one lower terminal 5 is conducted with at least one upper terminal 3, so that not only the upper terminal 3 and the lower terminal 5 corresponding to the upper and lower positions can be conducted from single point to single point, but also the upper terminal 3 and the lower terminal 5 not corresponding to the upper and lower positions can be conducted from single point to multi-point, so as to meet different use requirements and be more flexible and convenient to use.

[0040] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. Ultra-thin double-sided crimp connector, characterized by: It includes: A PCB board (1), wherein a plurality of upper conductors (11) are arranged on the upper end surface of the PCB board (1), and a plurality of lower conductors (12) are arranged on the lower end surface of the PCB board (1); an upper conductor (11) is electrically connected to at least one lower conductor (12), or a lower conductor (12) is electrically connected to at least one upper conductor (11); An upper terminal module (200) comprises an upper insulating plate (2) and a plurality of upper terminals (3) inserted and fixed in the upper insulating plate (2), wherein an upper contact elastic arm (32) of the upper terminal (3) extends out of an upper end surface of the upper insulating plate (2), and an upper elastic pin (33) of the upper terminal (3) protrudes out of a lower end surface of the upper insulating plate (2). A lower terminal module (400) comprises a lower insulating plate (4) and a plurality of lower terminals (5) inserted and fixed in the lower insulating plate (4), wherein the lower contact elastic arms (51) of the lower terminals (5) extend out of the lower end surface of the lower insulating plate (4), and the lower elastic pins (52) of the lower terminals (5) protrude out of the upper end surface of the lower insulating plate (4). The upper terminal module (200) is mounted on the upper end of the PCB board (1), the lower terminal module (400) is mounted on the lower end of the PCB board (1), the upper elastic pin (33) is elastically pressed into contact with the upper conductor (11) and is fixed by welding, and the lower elastic pin (52) is elastically pressed into contact with the lower conductor (12) and is fixed by welding; an upper terminal (3) is electrically connected to at least one lower terminal (5), or the lower terminal (5) is electrically connected to at least one upper terminal (3).

2. The ultra-thin double-sided crimping connector according to claim 1, characterized in that: The upper terminal (3) comprises a first main body (31), an upper contact spring arm (32) bent and formed at the front end of the first main body (31) and in an inclined state, and an upper elastic pin (33) bent and formed along the rear end of the first main body (31), wherein the lower end surface of the upper elastic pin (33) protrudes outside the lower end surface of the first main body (31), the first main body (31) is inserted and fixed in the upper insulating plate (2), and the upper contact spring arm (32) passes through a first upper window (21) provided on the upper insulating plate (2) from bottom to top to protrude outside the upper end surface of the upper insulating plate (2).

3. The ultra-thin double-sided crimping connector according to claim 2, characterized in that: The lower end surface of the upper insulating plate (2) is provided with a first mounting groove (22) connected to the first upper window (21), and first clamping grooves (23) are provided on both sides of the first mounting groove (22); first buckles (311) are also provided on both sides of the first main body (31); the first main body (31) is inserted into the first mounting groove (22), and the first buckle (311) is engaged with the first clamping groove (23) for positioning, so that the first main body (31) is fixed in the first mounting groove (22).

4. The ultra-thin double-sided crimping connector according to claim 3, characterized in that: The upper insulating plate (2) is provided with a first welding window (24) beside the first upper window (21), and the first welding window (24) is located above the upper elastic pin (33).

5. The ultra-thin double-sided crimping connector according to claim 3, characterized in that: The lower end surface of the upper insulating plate (2) is provided with a first avoidance groove (25) connected to the first mounting groove (22), so that a gap is formed between the lower end surface of the first main body (31) and the upper end surface of the PCB board (1), and the upper elastic pin (33) protrudes outside the first avoidance groove (25).

6. The ultra-thin double-sided crimping connector according to any one of claims 1 to 5, characterized in that: The structure of the lower terminal (5) is the same as that of the upper terminal (3), and the structure of the lower insulating plate (4) is also the same as that of the upper insulating plate (2); the assembly structure of the lower terminal (5) and the lower insulating plate (4) is also the same as the assembly structure of the upper terminal (3) and the upper insulating plate (2).

7. The ultra-thin double-sided crimping connector according to any one of claims 1 to 5, characterized in that: The upper terminal (3) and the lower terminal (5) are distributed in a mirror-symmetrical manner, and the orientation of the upper contact elastic arm (32) is the same as that of the lower contact elastic arm (51).

8. The ultra-thin double-sided crimping connector according to any one of claims 1 to 5, characterized in that: The upper terminal (3) and the lower terminal (5) are distributed in 180-degree rotational symmetry, and the direction of the upper contact elastic arm (32) is opposite to the direction of the lower contact elastic arm (51).

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