Composite pin header connector

Abstract

The utility model discloses a composite pin header connector, which comprises a plastic plate and pin headers fixed on the plastic plate, and the pin headers comprise at least a first pin header and a second pin header which are different in cross section shape or cross section area. The first guide connection portion of the first pin header and the second guide connection portion of the second pin header are exposed on the upper end face of the plastic plate, and the first welding foot of the first pin header and the second welding foot of the second pin header are exposed on the lower end face of the plastic plate. According to the utility model, the pin header is divided into at least two types of the first pin header and the second pin header which are different in cross section shape or cross section area, and is used for adapting to paired connectors using various different types of terminals so as to meet different use requirements, that is, the pin header can be used in combination with at least two types of pin headers of different specifications, and the cost is reduced. Particularly, the requirement that new energy automobiles need to use various terminal (namely pin header) specifications to meet application scenes can be met.

Description

Technical field:

[0001] The utility model relates to the technical field of connector products, in particular to a composite pin row connector. Background technology:

[0002] A connector (also often called a circuit connector or electrical connector) is a conductor component device that bridges two conductor components on a loop so that current or signal can flow from one conductor component to another conductor component.

[0003] With the rapid development of new energy vehicles, the integration of various domain controllers, multiple signal controls, and multiple power supply current requirements require connectors to use multiple terminal specifications to meet the needs of application scenarios.

[0004] Pin header connector is a conventional connector, which is also used in the connection of new energy vehicles, such as Figure 1-3 As shown, there are three types of pin header connectors 100 with different pin header sizes, each of which includes an insulating seat 101 and a plurality of pin headers 102 fixed on the insulating seat 101. The structure is extremely simple. When in use, the pin headers 102 can be directly inserted and fixed on the PCB board through the soldering feet, and the installation is also extremely convenient.

[0005] However, the current pin header connector 100 has only one type of pin header 102, that is, all the pin headers 102 on the pin header connector 100 have the same structure and shape; see Figure 1-3 As shown, where: Figure 1 The cross-sectional area of ​​the pin header 102 in the pin header connector 100 is shown to be smaller than Figure 1 The cross-sectional area of ​​the pin header 102 in the pin header connector 100 is shown. Figure 2 The cross-sectional area of ​​the pin header 102 in the pin header connector 100 is shown to be smaller than Figure 2 The cross-sectional area of ​​the pin header 102 in the pin header connector 100 is shown; if the mating connector needs to mate with a plurality of pin headers 102 of different shapes, the current pin header connector 100 is not applicable, especially for new energy vehicles, which use pin header connectors with a variety of terminal specifications to meet the needs of application scenarios, but, obviously, Figure 1-3 Any of the pin header connectors shown cannot meet the above-mentioned usage requirements.

[0006] The current pin header connector 100 also has a second technical problem that needs to be solved. Specifically, the existing pin header connector does not have a mating cavity. When it is mated with a matching connector, it is only positioned by the clamping force between the pin header and the matching connector. The plugging and unplugging force between them is insufficient, and it is easy to get loose, which affects the conduction quality and cannot meet the automotive regulations.

[0007] In view of this, the inventor proposes the following technical solution. Utility model content:

[0008] The utility model aims to overcome the deficiencies of the prior art and provide a composite pin header connector.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solution: the composite pin connector includes a plastic plate and a pin fixed on the plastic plate, the pin includes a first pin and a second pin with at least two different cross-sectional shapes or cross-sectional areas, the first conductive portion of the first pin and the second conductive portion of the second pin are both exposed on the upper end surface of the plastic plate, and the first welding leg of the first pin and the second welding leg of the second pin are both exposed on the lower end surface of the plastic plate.

[0010] Furthermore, in the above technical solution, the plastic plate is docked with the casing panel, wherein the casing panel is provided with a mating cavity for inserting a mating connector adapted to the composite pin header connector, the first conductive portion of the first row of pins and the second conductive portion of the second row of pins are both exposed in the mating cavity, and a limiting structure for clamping and positioning the mating connector is provided in the mating cavity.

[0011] Furthermore, in the above technical solution, the inner wall of the inserting cavity is provided with at least one pair of hooks as the limiting structure, which are a first hook and a second hook that are relatively distributed, and a buckle space is formed between the first hook and the second hook.

[0012] Furthermore, in the above technical solution, the upper ends of the first hook and the second hook are both provided with guide slopes, which extend to the opening of the buckle space; the inner wall of the mating cavity is provided with anti-foolproof grooves adapted to the anti-foolproof ribs provided on the outer side of the mating connector.

[0013] Furthermore, in the above technical solution, the outer side surface of the plastic plate is embedded in the lower opening of the plug-in cavity; or, the lower end surface of the casing panel is against the upper end surface of the plastic plate, and only the pins pass through the through holes provided in the casing panel to extend into the plug-in cavity.

[0014] Furthermore, in the above technical solution, the side edges of the front and rear end surfaces of the first row of needles are punched and torn to form first clamping points extending along the side surfaces, so that both sides of the first row of needles have two first clamping points distributed in a mirror-symmetrical manner, and the first clamping points do not protrude from the front and rear end surfaces of the first row of needles; when the first row of needles are inserted into the first sockets set on the plastic plate, the four first clamping points on both sides of the first row of needles are tensioned and clamped in place with the first sockets.

[0015] Furthermore, in the above technical solution, the surfaces facing each other of the two first clamping points on one side of the first row of needles are both first arc-shaped convex surfaces, so that a first gap gradually narrows from wide to narrow is formed between the two first clamping points.

[0016] Furthermore, in the above technical solution, a second clamping point is provided on the second row of needles, and the structure of the second clamping point is the same as that of the first clamping point.

[0017] Furthermore, the above technical solution also includes a third row of needles, and the cross-sectional shape or cross-sectional area of ​​the third row of needles is different from that of the second row of needles and the first row of needles, and a third clamping point is provided on the third row of needles, and the structure of the third clamping point is the same as that of the first clamping point.

[0018] Furthermore, in the above technical solution, a plurality of positioning posts are provided at the diagonal positions of the lower end of the plastic plate, and a guide surface is provided at the end of the positioning post; the pin header is in the shape of a straight bar, or is in the shape of a right angle after being bent.

[0019] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0020] 1. The utility model divides the pin row into at least two first pin rows and second pin rows with different cross-sectional shapes or cross-sectional areas, which are used to adapt to matching connectors with various types of terminals to meet different usage requirements. That is, the utility model can use at least two pin rows of different specifications in combination, especially to meet the needs of new energy vehicles that need a variety of terminal (i.e. pin row) specifications to meet the needs of application scenarios, solving the first technical problem of the background technology.

[0021] 2. The utility model does not require an additional shell, but can be directly assembled with the casing panel, so that the structure of the entire composite pin header connector is simpler, more flexible to use, and more versatile. The casing panel has a mating cavity, and the first conductive portion of the first row of pins and the second conductive portion of the second row of pins are both exposed in the mating cavity. During use, after the mating connector is inserted into the mating cavity of the casing panel, the terminals in the mating connector are respectively connected with the first row of pins and the second row of pins in a one-to-one correspondence, and the matching connector is clamped and positioned by the limiting structure to ensure that the matching connector is stably inserted into the casing panel and forms a stable conductive connection with the first row of pins and the second row of pins, avoiding the phenomenon of insufficient plugging and unplugging force, and at the same time, the matching connector will not be loosened relative to the composite pin header connector, thereby ensuring the conduction quality, so that it can meet the vehicle regulations and solve the second technical problem in the background technology. Description of the drawings:

[0022] Figure 1 It is a three-dimensional diagram of the first pin header connector in the prior art;

[0023] Figure 2 is a stereogram of a second type of pin header connector in the prior art;

[0024] Figure 3 It is a three-dimensional diagram of a third type of pin header connector in the prior art;

[0025] Figure 4 It is a three-dimensional diagram of the utility model;

[0026] Figure 5 It is a stereogram of another viewing angle of the utility model;

[0027] Figure 6 It is an assembly drawing of the utility model, the PCB board and the casing panel;

[0028] Figure 7 It is a three-dimensional diagram of the first row of needles in the utility model;

[0029] Figure 8 yes Figure 6 Exploded diagram of

[0030] Fig. 9 It is a three-dimensional diagram of the second row of needles in the utility model;

[0031] Fig.10 This is another assembly diagram of the utility model with the PCB board and the housing panel;

[0032] Fig.11 It is a three-dimensional diagram of the third row of needles in the utility model;

[0033] Fig.12 It is a three-dimensional diagram of another structure of the utility model;

[0034] Fig.13 This is the first assembly diagram of the utility model with the PCB board and the housing panel;

[0035] Fig.14 This is the second assembly diagram of the utility model with the PCB board and the casing panel. Specific implementation method:

[0036] The utility model is further described below in conjunction with specific embodiments and drawings.

[0037] See Figure 1-14 As shown, a composite pin header connector includes a plastic plate 2 and pin headers fixed on the plastic plate 2, which is the structure of a conventional pin header connector.

[0038] The pin row includes at least two first pin row 3 and second pin row 4 with different cross-sectional shapes or cross-sectional areas. The first conductive part 31 of the first pin row 3 and the second conductive part 41 of the second pin row 4 are both exposed on the upper end surface of the plastic plate 2, and the first welding foot 32 of the first pin row 3 and the second welding foot 42 of the second pin row 4 are both exposed on the lower end surface of the plastic plate 2. The utility model divides the pin row into at least two first pin row 3 and second pin row 4 with different cross-sectional shapes or cross-sectional areas, which are used to adapt to the matching connectors with various types of terminals to meet different use requirements, that is, the utility model can use at least two pin row with different specifications in combination, especially can meet the needs of new energy vehicles to use a variety of terminal (i.e. pin row) specifications to meet the application scenarios, and solves the first technical problem of the background technology.

[0039] In a specific application of the present invention, one of the first row of needles 3 and the second row of needles 4 with a larger cross-sectional shape or a larger cross-sectional area is used as a power terminal to transmit current, and the other is used as a signal terminal to transmit signals.

[0040] The pin header is made by drawing flat wires, which is simpler to process than the pin header made by stamping (ie the prior art), and has no waste material formed by stamping, thereby reducing waste material generation and increasing material utilization.

[0041] The pin header and the plastic plate 2 are assembled by plug-in, and the whole assembly process is relatively simple. In addition, the existing universal pin header assembly connector can be used for common equipment assembly, which greatly reduces product cost.

[0042] The plastic plate 2 is connected to the housing panel 6, wherein the housing panel 6 is the housing panel of the target device. The housing panel 6 is provided with a mating cavity 61 for inserting a mating connector adapted to the composite pin header connector, the first conductive portion 31 of the first pin row 3 and the second conductive portion 41 of the second pin row 4 are both exposed in the mating cavity 61, and a limiting structure for clamping and positioning with the mating connector is provided in the mating cavity 61. That is to say, the utility model does not need to add an additional shell, but can be directly assembled with the casing panel 6, so that the structure of the entire composite pin header connector is simpler, more flexible to use, and more versatile. The casing panel 6 has a mating cavity 61, and the first conductive portion 31 of the first row of pins 3 and the second conductive portion 41 of the second row of pins 4 are both exposed in the mating cavity 61. During use, after the mating connector is inserted into the mating cavity 61 of the casing panel 6, the terminals in the mating connector are respectively connected with the first row of pins 3 and the second row of pins 4 in a one-to-one correspondence, and the matching connector is clamped and positioned by the limiting structure to ensure that the matching connector is stably inserted into the casing panel 6, and to ensure that a stable connection is formed with the first row of pins 3 and the second row of pins 4, avoiding the phenomenon of insufficient plugging and unplugging force, and at the same time, the matching connector will not be loosened relative to the composite pin header connector, thereby ensuring the conduction quality, so that the vehicle regulations can be met, and the second technical problem in the background technology is solved.

[0043] The inner wall of the mating cavity 61 is provided with at least one pair of hooks as the limiting structure, which are the first hook 62 and the second hook 63 that are relatively distributed, and a buckle space 60 is formed between the first hook 62 and the second hook 63. Correspondingly, an elastic lock is provided on the outside of the mating connector. When the mating connector is inserted into the mating cavity 61, the elastic lock passes over the first hook 62 and the second hook 63 and is placed in the buckle space 60, so that the elastic lock simultaneously holds the first hook 62 and the second hook 63 in position, so that the mating connector is stably positioned in the mating cavity 61, which can effectively avoid accidental separation and ensure the quality of the assembly structure.

[0044] The upper ends of the first hook 62 and the second hook 63 are both provided with guiding slopes 601, and the guiding slopes 601 extend to the opening of the buckle space 60. The guiding slopes 601 play a good guiding role. When the elastic lock buckle is inserted into the plug-in cavity 61, the elastic lock buckle first contacts the two guiding slopes 601, and the elastic lock buckle is guided by the guiding slopes 601 to continue to be inserted and inserted into the buckle space 60, so that the elastic lock buckle is clamped and positioned by the first hook 62 and the second hook 63 at the same time, and its assembly is more convenient and efficient.

[0045] In order to prevent reverse insertion, the inner wall of the mating cavity 61 is provided with an anti-mistake groove 611 adapted to the anti-mistake ribs provided on the outer side of the mating connector. When the mating connector is inserted into the mating cavity 61, the anti-mistake ribs need to correspond to the anti-mistake groove 611 before it can be inserted, thereby preventing mismatch and reverse insertion.

[0046] The assembly methods of the plastic plate 2 and the housing panel 6 include at least the following two methods:

[0047] The first is that the outer side of the plastic plate 2 is embedded in the lower opening 612 of the plug-in cavity 61, thereby ensuring that the entire composite pin header connector is stably installed in the plug-in cavity 61, so that all the pins are accurately positioned in the plug-in cavity 61, which can reduce the assembly error between the composite pin header connector and the housing panel 6 and enhance the quality of the product. Fig.13 shown.

[0048] The second type is: the lower end surface of the housing panel 6 is against the upper end surface of the plastic plate 2, and only the pins pass through the through holes 613 set in the housing panel 6 to extend into the plug-in cavity 61. The through holes 613 can also position the pins, and the assembly accuracy can also be ensured. Fig.14 shown.

[0049] The sides of the front and rear end surfaces of the first row of needles 3 are punched and torn to form first clamping points 33 extending along the sides, so that both sides of the first row of needles 3 have two first clamping points 33 distributed in a mirror-symmetrical manner, that is, the first row of needles 3 is formed with four first clamping points 33. Since the first row of needles 3 is not formed by punching on a metal plate but is made by drawing a flat wire, and the first clamping points 33 are not formed by punching waste but by punching and tearing, no waste is generated, so that the first row of needles 3 is more material-saving and has a lower production cost. And the first clamping points 33 do not protrude from the front and rear end surfaces of the first row of needles 3; when the first row of needles 3 are inserted into the first plug holes 21 set on the plastic plate 2, the four first clamping points 33 on both sides of the first row of needles 3 are tensioned, clamped and positioned with the first plug holes 21, and because the first clamping points 33 are formed by punching and tearing, the first clamping points 33 have slight elasticity, so that after being inserted into the first plug holes 21, they can be compressed to form a slight outward elastic force, thereby improving the tensioning, clamping and positioning effect, and ensuring that the first row of needles 3 are stably assembled on the plastic plate 2.

[0050] The opposing surfaces of the two first clamping points 33 on one side of the first row of needles 3 are both first arc-shaped convex surfaces 331, so that a first gap 330 gradually narrows from wide to narrow is formed between the two first clamping points 33. When the first clamping point 33 is inserted into the first insertion hole 21 of the plastic plate 2, the plastic material under extrusion flows through the first gap 330 to the back and expands and restores rapidly, and does not shear the material of the plastic plate, thereby greatly increasing the holding force, wherein the holding force of the first row of needles can reach more than 80N, thereby effectively preventing the phenomenon of needles retreating due to travel.

[0051] The second row of needles 4 is provided with a second clamping point 43 , and the structure of the second clamping point 43 is the same as that of the first clamping point 33 , which will not be described in detail herein.

[0052] The third row of needles 5 is also included, and the cross-sectional shape or cross-sectional area of ​​the third row of needles 5 is different from that of the second row of needles 4 and the first row of needles 3, so that the utility model has three different types of needles to meet different usage requirements. The third row of needles 5 is provided with a third clamping point 51, and the structure of the third clamping point 51 is the same as that of the first clamping point 33, which will not be described one by one here.

[0053] A plurality of positioning posts 22 are provided at the diagonal positions of the lower end of the plastic plate 2, and a guide surface 221 is provided at the end of the positioning post 22; when the utility model is assembled with the PCB board 7, the positioning posts 22 can be inserted into the positioning holes 71 of the PCB board 7 to achieve the purpose of positioning, and the guide surface 221 plays a guiding role, which can improve the assembly efficiency and the assembly efficiency.

[0054] The pin row is in the shape of a straight strip, such as Figure 1-11 As shown, or, the pin row is bent at a right angle, such as Fig.12 shown.

[0055] To sum up, the utility model divides the pin row into at least two types of first pin row 3 and second pin row 4 with different cross-sectional shapes or cross-sectional areas, which are used to adapt to matching connectors with various types of terminals to meet different usage requirements. That is, the utility model can use at least two pin row combinations of different specifications, especially can meet the needs of new energy vehicles that need a variety of terminal (i.e. pin row) specifications to meet the needs of application scenarios, solving the first technical problem of the background technology. In addition, the utility model does not need to add an additional shell, but can be directly assembled with the casing panel 6, so that the structure of the entire composite pin header connector is simpler, more flexible to use, and more versatile. The casing panel 6 has a mating cavity 61, and the first conductive portion 31 of the first row of pins 3 and the second conductive portion 41 of the second row of pins 4 are both exposed in the mating cavity 61. During use, after the mating connector is inserted into the mating cavity 61 of the casing panel 6, the terminals in the mating connector are respectively connected with the first row of pins 3 and the second row of pins 4 in a one-to-one correspondence, and the matching connector is clamped and positioned by the limiting structure to ensure that the matching connector is stably inserted into the casing panel 6, and to ensure that a stable connection is formed with the first row of pins 3 and the second row of pins 4, avoiding the phenomenon of insufficient plugging and unplugging force, and at the same time, the matching connector will not be loosened relative to the composite pin header connector, thereby ensuring the conduction quality, so that the vehicle regulations can be met, and the second technical problem in the background technology is solved.

[0056] 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. A composite pin header connector, comprising a plastic plate (2) and a pin header fixed on the plastic plate (2), characterized in that: The row of needles comprises a first row of needles (3) and a second row of needles (4) having at least two different cross-sectional shapes or different cross-sectional areas, wherein the first guide connection portion (31) of the first row of needles (3) and the second guide connection portion (41) of the second row of needles (4) are both exposed on the upper end surface of the plastic plate (2), and the first welding leg (32) of the first row of needles (3) and the second welding leg (42) of the second row of needles (4) are both exposed on the lower end surface of the plastic plate (2).

2. A composite pin header connector according to claim 1, characterized in that: The plastic plate (2) is connected to the housing panel (6), wherein the housing panel (6) is provided with a mating cavity (61) for inserting a mating connector adapted to the composite pin row connector, the first conductive portion (31) of the first pin row (3) and the second conductive portion (41) of the second pin row (4) are both exposed in the mating cavity (61), and a limiting structure for clamping and positioning the mating connector is provided in the mating cavity (61).

3. A composite pin header connector according to claim 2, characterized in that: The inner wall of the plug-in cavity (61) is provided with at least one pair of hooks as the limiting structure, which are a first hook (62) and a second hook (63) that are relatively distributed, and a buckle space (60) is formed between the first hook (62) and the second hook (63).

4. The composite pin header connector according to claim 3, characterized in that: The upper ends of the first hook (62) and the second hook (63) are both provided with a guiding slope (601), and the guiding slope (601) extends to the opening of the buckle space (60); the inner wall of the mating cavity (61) is provided with an anti-foolproof groove (611) adapted to the anti-foolproof rib provided on the outer side of the mating connector.

5. A composite pin header connector according to any one of claims 1 to 4, characterized in that: The outer side surface of the plastic plate (2) is embedded in the lower opening (612) of the plug-in cavity (61); or, the lower end surface of the housing panel (6) is against the upper end surface of the plastic plate (2), and only the pins pass through the through holes (613) provided in the housing panel (6) to extend into the plug-in cavity (61).

6. A composite pin header connector according to any one of claims 1 to 4, characterized in that: The side edges of the front and rear end surfaces of the first row of needles (3) are punched and torn to form first clamping points (33) extending along the side surfaces, so that both sides of the first row of needles (3) have two first clamping points (33) distributed in a mirror-symmetrical manner, and the first clamping points (33) do not protrude from the front and rear end surfaces of the first row of needles (3); when the first row of needles (3) are inserted into the first insertion holes (21) provided on the plastic plate (2), the four first clamping points (33) on both sides of the first row of needles (3) are tensioned and clamped with the first insertion holes (21) to be positioned.

7. The composite pin header connector according to claim 6, characterized in that: The surfaces facing each other of the two first clamping points (33) on one side of the first row of needles (3) are both first arc-shaped convex surfaces (331), so that a first gap (330) gradually narrows from wide to narrow is formed between the two first clamping points (33).

8. The composite pin header connector according to claim 7, characterized in that: The second row of needles (4) is provided with a second clamping point (43), and the structure of the second clamping point (43) is the same as that of the first clamping point (33).

9. The composite pin header connector according to claim 8, characterized in that: The invention also comprises a third row of needles (5), and the cross-sectional shape or cross-sectional area of ​​the third row of needles (5) is different from that of the second row of needles (4) and the first row of needles (3), and a third clamping point (51) is arranged on the third row of needles (5), and the structure of the third clamping point (51) is the same as that of the first clamping point (33).

10. A composite pin header connector according to any one of claims 1 to 4, characterized in that: A plurality of positioning columns (22) are arranged at the diagonal positions of the lower end of the plastic plate (2), and a guide surface (221) is arranged at the end of the positioning column (22); the pin row is in the shape of a straight bar, or in the shape of a right angle after being bent.

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