Connector and connector assembly

Abstract

The utility model relates to a connector and a connector assembly. The connector comprises a shell, a plurality of fixed pins and a plurality of signal pins. The fixed pin is arranged on the welding surface of the shell; the connector occupies a first width a1 in the width direction of the welding surface; the plurality of fixed pins have a second width a2 in the width direction, and the second width a2 is the maximum width among the plurality of fixed pins in the width direction; the second width a2 is smaller than or equal to the first width a1; the plurality of signal pins have a third width a3 in the width direction, and the third width a3 is the maximum width among the plurality of signal pins in the width direction; the second width a3 is smaller than or equal to the first width a1; wherein when a2 is larger than or equal to a3, the difference value between the first width a1 and the second width a2 ranges from 0 mm to 0.5 mm; and when a2 is less than or equal to a3, the difference value between the first width a1 and the third width a3 is 0 mm to 0.5 mm. The connector disclosed by the utility model is relatively small in width, and the occupied width of a PCBA (Printed Circuit Board Assembly) can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to connectors and connector assemblies. Background Art

[0002] In the field of connector technology, a fixed pin group is usually set to improve the stability of the connector when it is welded to a PCB (Printed Circuit Board). However, due to the unreasonable setting position of the fixed pin group in the prior art, the existing PCBA needs to be set to a longer width in order to accommodate the connector. Utility Model Content

[0003] Based on this, it is necessary to provide a connector and a connector assembly to address the problem that the existing PCBA needs to be set to a longer width in order to accommodate the connector.

[0004] In a first aspect, the present application provides a connector, comprising a housing, a plurality of fixed pins and a plurality of signal pins; the fixed pins are arranged on a welding surface of the housing;

[0005] The connector occupies a first width a1 in the width direction of the welding surface;

[0006] The plurality of fixed pins have a second width a2 in the width direction, and the second width a2 is the maximum width between the plurality of fixed pins in the width direction; the second width a2 is less than or equal to the first width a1;

[0007] The plurality of signal pins have a third width a3 in the width direction, and the third width a3 is the maximum width between the plurality of signal pins in the width direction; the second width a3 is less than or equal to the first width a1;

[0008] Wherein, when a2≥a3, the difference between the first width a1 and the second width a2 is 0 mm to 0.5 mm;

[0009] When a2≤a3, the difference between the first width a1 and the third width a3 is 0 mm to 0.5 mm.

[0010] In one embodiment, the plurality of fixing pins are arranged in at least two rows along the width direction of the welding surface.

[0011] In one embodiment, the projection shapes of the fixing pins on the welding surface are the same.

[0012] In one embodiment, the plurality of fixing pins are arranged into a first row and a second row along the width direction of the welding surface, and the projection shapes of the fixing pins in the first row and the fixing pins in the second row on the welding surface are different.

[0013] In one embodiment, the plurality of signal pins are arranged in at least one row along the width direction of the welding surface.

[0014] In one embodiment, the plurality of signal pins are arranged in two rows along the width direction of the welding surface, and the widths of the signal pins in one row are different.

[0015] In one embodiment, the plurality of signal pins are arranged in two rows along the width direction of the welding surface, and the signal pins in the same row have the same width.

[0016] In one embodiment, the connector includes a type C connector.

[0017] In a second aspect, the present application also provides a connector assembly, including a PCBA and the above-mentioned connector, wherein the PCBA has a plurality of first welding through holes and a plurality of second welding through holes; the plurality of first welding through holes are used for welding a plurality of fixed pins in the above-mentioned connector; the plurality of second welding through holes are used for welding a plurality of signal pins in the above-mentioned connector.

[0018] In one of the embodiments, the shell forms an interface of the connector, and an insertion direction of the interface is perpendicular to the PCBA, or an insertion direction of the interface is parallel to the PCBA.

[0019] The above connector and connector assembly, the connector includes a shell, a plurality of fixed pins and a plurality of signal pins; the fixed pins are arranged on the welding surface of the shell. The difference between the first width and the second width or the first width and the third width of the welding surface is within a preset range. The second width is the distance between the two signal pins closest to the two ends in the width direction of the welding surface when the signal pins are arranged in the same row; the third width is the distance between the two fixed pins closest to the two ends in the width direction of the welding surface. That is, when the connector is welded on the PCBA, the width of the occupied PCBA depends on the width of the fixed pins or signal pins in its welding surface. Compared with the prior art in which the fixed pin group is arranged on the side of the connector shell, the width of the corresponding PCBA to be set should be greater than or equal to the sum of the widths of all fixed pin groups and signal pin groups. The connector width in this application is smaller, which can reduce the width of the occupied PCBA. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a connector in an embodiment of the present application;

[0022] Figure 2 is a side view of a connector in one embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of a connector in the prior art;

[0024] Figure 4 A schematic diagram of a pin pad in a PCBA corresponding to a connector in the prior art;

[0025] Figure 5 A schematic diagram of the dimensions of a signal pin in an embodiment of the present application;

[0026] FIG. 6 ( a ) is one of the projection shapes of the fixing pin on the welding surface in one embodiment of the present application;

[0027] FIG. 6 ( b ) is a second projection shape of the fixing pin on the welding surface in an embodiment of the present application;

[0028] Figure 7 The third projection shape of the fixing pin on the welding surface in one embodiment of the present application;

[0029] Figure 8 This is a schematic diagram of the projection of each pin on the welding surface when the signal pins are arranged in two rows in one embodiment of the present application;

[0030] Fig. 9 It is a schematic diagram of the projection of the signal pin on the welding surface in one embodiment of the present application;

[0031] FIG. 10 ( a ) is one of the structural schematic diagrams of a PCBA in an embodiment of the present application;

[0032] FIG. 10( b ) is a second schematic diagram of the structure of a PCBA in an embodiment of the present application.

[0033] Description of Figure Numbers:

[0034] Shell: 110 ; welding surface: 111 ; fixed pin: 120 ; signal pin: 130 ; PCBA: 200 ; first welding through hole: 210 ; second welding through hole: 220 . DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In one embodiment, see the attached Figure 1 and attached Figure 2 , attached Figure 1 1 shows a schematic diagram of the structure of the connector in this embodiment, wherein the ellipsis represents a portion of the plurality of fixed pins 120 or the plurality of signal pins 130 that is not shown; Figure 2A side view of the connector in this embodiment is shown; the connector in this embodiment includes a shell 110, a plurality of fixed pins 120 and a plurality of signal pins 130; the fixed pins 120 are arranged on the welding surface 111 of the shell 110, and the connector occupies a first width a1 in the width direction of the welding surface 111; the plurality of fixed pins 120 have a second width a2 in the width direction, and the second width a2 is the maximum width between the plurality of fixed pins 120 in the width direction; the second width a2 is less than or equal to the first width a1; the plurality of signal pins 120 have a third width a3 in the width direction, and the third width a3 is the maximum width between the plurality of signal pins 120 in the width direction; the second width a3 is less than or equal to the first width a1; wherein, when a2≥a3, the difference between the first width a1 and the second width a2 is 0 mm to 0.5 mm; when a2≤a3, the difference between the first width a1 and the third width a3 is 0 mm to 0.5 mm.

[0040] It can be understood that the connector can be divided into a shell 110 part and a main body part, the shell 110 part is positioned outside the main body part, a circuit board is arranged in the main body part, a plurality of signal pins 130 are arranged on the circuit board, and the circuit board is used to perform calculation processing or transmission on the signal transmitted by the signal pins 130. The shell 110 in this embodiment is mainly used to protect the circuit board and the signal pins 130 in the main body part from external force damage. In addition, the connector in this embodiment can be a vertical connector or a side connector.

[0041] The fixed pins 120 are mainly used to fix the entire connector on the PCBA (Printed Circuit Board) when the connector is soldered on the PCBA, so as to avoid the charging cable matching the connector from shifting the position of the connector on the PCBA when plugging and unplugging. The number of fixed pins 120 can be an odd number or an even number. When it is an odd number, take 2n+1 as an example, n is a positive integer, where 2n fixed pins 120 are symmetrically distributed on the welding surface 111 near the two ends opposite to the welding surface 111, and 1 fixed pin 120 is set in the middle of the welding surface 111 to improve the stability of the connector. When the number of fixed pins 120 is an even number, take 2n as an example, 2n fixed pins 120 are symmetrically distributed on the welding surface 111 near the two ends opposite to the welding surface 111, so that when the connector is soldered on the PCBA, a uniform force point is provided.

[0042] The plurality of signal pins 130 may be used as power pins, data transmission pins, configuration channel pins, standby mode pins, etc., and the number of the plurality of signal pins 130 is generally 8 to 24.

[0043] The welding surface 111 refers to a side of the connector housing 110 facing the PCBA when the connector housing 110 is welded into the PCBA.

[0044] See attached Figure 3 and attached Figure 4 , attached Figure 3 The structure diagram of the connector in the prior art is shown; Figure 4 The schematic diagram of the pin pads in the PCBA corresponding to the connector in the prior art is shown. It can be seen that in the connector in the prior art, due to the existence of the fixed pins 120, the distance between the fixed pads of the connector is 8.64mm. The connector is soldered on the PCBA, and the required PCBA width is about 8.64mm+0.5mm (the width of a pad)+0.5mm (the reserved board edge of the single-sided PCB)+0.5mm (the reserved board edge of the single-sided PCB)=about 10.14mm. For example, refer to the attached Figure 5 , attached Figure 5 The schematic diagram of the size of the signal pin 130 is shown in FIG. Figure 5 In the example, six signal pins 130 are used. It can be seen that in this embodiment, since the fixed pins 120 are arranged on the welding surface 111 of the housing 110, from the perspective of the pad, the widest position is the width of the signal pins 130 in the front. Assuming that the spacing and width of each signal pin 130 are the same as those of the attached Figure 4 Similarly, the width of the front signal pin 130 is 6.4 mm (5.5 mm + 0.9 mm (the width of a pad)), while the width of the attached Figure 4 The minimum width of the middle pad is 8.64mm+0.5mm=9.14mm, so the overall pad width is reduced by 9.14mm-6.4mm=2.74mm. Through the connector in this embodiment, the width of the PCBA can be reduced by 2.74mm. In terms of the width of the PCBA, the area of ​​the PCB can be saved by about 27% in some scenarios.

[0045] The first width a1 occupied by the connector in the width direction of the welding surface 111 can be understood as the dimension of the PCBA in the same direction as the width direction of the welding surface 111 when the connector is welded on the PCBA. The maximum width between the plurality of fixed pins 120 in the width direction can be understood as the distance between the two fixed pins closest to the two ends in the width direction of the welding surface 110; similarly, the maximum width between the plurality of signal pins 130 in the width direction can also be understood as the distance between the two fixed pins closest to the two ends in the width direction of the welding surface 110. When a2≥a3, the difference between the first width a1 and the second width a2 is 0mm to 0.5mm; when a2≤a3, the difference between the first width a1 and the third width a3 is 0mm to 0.5mm. It can be understood that when a2=a3, the difference between the first width a1 and the second width a2 is equal to the difference between the first width a1 and the third width a3. Therefore, it can be understood that the difference between the first width a1 and the second width a2 or the third width a3 is between 0mm and 0.5mm, such as 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, but not limited to this. The preset range can represent the distance of the pin from the edge of the shell 110 in the width direction.

[0046] In one embodiment, the plurality of fixing pins 120 are arranged in at least two rows along the width direction of the welding surface 111. Figure 1 The figure shows that the fixed pins 120 are arranged in two rows along the width direction of the welding surface 111. When the length of the welding surface 111 is controlled to be unchanged, the plurality of fixed pins 120 are arranged in at least two rows along the width direction of the welding surface 111, which can further reduce the first width a1 of the connector welding surface 111, thereby reducing the width of the PCBA pad.

[0047] It is understood that the location of the fixing pin 120 on the welding surface 111 is not limited to the above illustration, and can also be arranged according to the attached Figure 1 The schematic diagram shows the layout of the shape after rotating 90 degrees clockwise or counterclockwise, and the length of the connector and PCBA is reduced.

[0048] In one embodiment, the projection shapes of the fixing pins 120 on the welding surface 111 are the same.

[0049] For example, referring to FIG. 6 (a) and FIG. 6 (b), FIG. 6 (a) and FIG. 6 (b) show two projection shapes of the fixed pins 120 on the welding surface 111 in this embodiment, wherein FIG. 6 (a) and FIG. 6 (b) show the case where the number of the fixed pins 120 is 4 and the 4 fixed pins 120 are arranged in two rows. It can be seen that FIG. 6 (a) shows the case where the short side of the projection shape of the fixed pin 120 on the welding surface 111 is parallel to the width direction of the extended welding surface 111, and FIG. 6 (b) shows the case where the long side of the projection shape of the fixed pin 120 on the welding surface 111 is parallel to the width direction of the extended welding surface 111. In this embodiment, the projection shapes of each fixed pin 120 on the welding surface 111 are the same, that is, the fixed pin 120 is set in the same shape as the welding surface 111, which is conducive to balancing the stress points of the connector on the PCBA, so that the connector can be more firmly soldered to the PCBA.

[0050] In one embodiment, the plurality of fixing pins 120 are arranged in a first row and a second row along the width direction of the welding surface 111, and the projection shapes of the first row of fixing pins 120 and the second row of fixing pins 120 on the welding surface 111 are different. Figure 7 , attached Figure 7 The third structural diagram of the fixed pin 120 is shown. Figure 7 In the figure, four fixed pins 120 are taken as an example, wherein the long sides of the first row of fixed pins 120 are arranged parallel to the width direction of the welding surface 111, and the short sides of the second row of fixed pins 120 are arranged parallel to the width direction of the welding surface 111. It can be understood that in other embodiments, the positions of the first row and the second row can also be swapped, and are not limited to this. In this embodiment, multiple fixed pins 120 are arranged in the first row and the second row along the width direction of the welding surface 111, which can ensure that the width of the welding surface 111 can be reduced while the length of the welding surface 111 remains unchanged. In other embodiments, the fixed pins 120 in the first row and the fixed pins 120 in the second row can be staggered, and do not have to be aligned with the center line as shown in the fixed pins 120#1 in the first row and the fixed pins 120#3 in the second row in this embodiment.

[0051] In one embodiment, a plurality of signal pins 130 are arranged in at least one row along the width direction of the welding surface 111. In this embodiment, since the fixed pins 120 are all arranged on the welding surface 111 of the shell 110, the plurality of signal pins 130 are arranged in at least one row along the width direction of the welding surface 111, which can reduce the width of the welding surface 111 relative to the prior art. If the plurality of signal pins 130 are arranged in multiple rows along the width direction of the welding surface 111, such as two rows, three rows, four rows, etc., the width of the welding surface 111 can be further reduced, that is, the width of the PCBA occupied by the connector can be reduced. However, it should be noted that the length of the welding surface 111 needs to remain unchanged, so the length should be avoided to increase due to too many rows. When it is set to multiple rows, its setting position can be reasonably set in combination with the shape of the fixed pins 120 on the welding surface 111. For example, refer to the attached Figure 8 , attached Figure 8 FIG. 1 shows a schematic diagram of the projection of each pin on the welding surface 111 when the signal pins 130 are arranged in two rows. In other embodiments, the two rows of signal pins 130 can also be aligned in the length direction of the welding surface 111, and do not have to be arranged as shown in FIG. Figure 8 The staggered arrangement shown, wherein the length direction is perpendicular to the width direction.

[0052] In one embodiment, the plurality of signal pins 130 are arranged in two rows along the width direction of the soldering surface 111 , and the widths of the signal pins 130 in one row are different.

[0053] It is understandable that the widths of the signal pins 130 for different purposes may be different, such as the power pins may be wider and the data transmission pins may be narrower. In this case, in order to set the width of the welding surface 111 as small as possible, the widths of at least one row of signal pins 130 may be different. Fig. 9 The schematic projection diagram of the signal pins 130 on the welding surface 111 shown in the figure takes six signal pins 130 as an example, assuming that the distance between the signal pins 130 at the two ends in the width direction of the welding surface 111 and the two ends in the width direction of the welding surface 111 remains unchanged. Since the widths of the signal pins 130 in this row are different, compared with the signal pins 130 that are all wider, the total width they occupy is smaller, which can further shorten the width of the welding surface 111.

[0054] In one embodiment, the plurality of signal pins 130 are arranged in two rows along the width direction of the soldering surface 111 , and the widths of the signal pins 130 in the same row are the same.

[0055] Continue to refer to the attached Figure 8 , attached Figure 8The first row of signal pins 130 shown in the figure have the same width. Although the width of the welding surface 111 is not the smallest, that is, its width is relatively loose, it can make the number of signal pins 130 or fixed pins 120 that can be set in a row greater, thereby avoiding the welding surface 111 from being too long while maintaining a reduced width compared to the existing width.

[0056] In one embodiment, the connector includes a type C connector. In this embodiment, the connector is set as a type C connector, which can reduce the width of the type C connector, so that the width of the corresponding PCBA is also reduced, thereby reducing costs. It is understandable that in addition to the type C connector, the connector in this application can also be a radio frequency connector, a circular connector, a backplane connector, etc., but is not limited thereto.

[0057] In one embodiment, the present application also provides a connector assembly, including PCBA200 and the connector in any of the above embodiments, wherein PCBA200 has a plurality of first welding through holes 210 and a plurality of second welding through holes 220, the plurality of first welding through holes 210 are used for welding a plurality of fixed pins in the connector in any of the above embodiments; the plurality of second welding through holes 220 are used for welding a plurality of signal pins in the connector in any of the above embodiments.

[0058] For example, referring to the schematic diagram of the structure of the PCBA shown in FIG. 10 (a) and FIG. 10 (b), there are shown the situation that the first welding through holes 210 are 4 and the second welding through holes 220 are 6. FIG. 10 (a) shows the situation that the first welding through holes 210 are arranged in two rows along the width direction of the PCBA 200, the second welding through holes 220 are arranged in one row, and the first welding through holes 210 in the two rows are arranged staggered. FIG. 10 (b) shows the situation that the first welding through holes 210 and the second welding through holes 220 are arranged in two rows, and the second welding through holes 220 in the first row are arranged staggered with the second welding through holes 220 in the second row. It can be understood that FIG. 10 (a) and FIG. 10 (b) are only two examples. In actual applications, the number and setting position of the first welding through holes 210 and the second welding through holes 220 can correspond to the setting position of the fixed pins and signal pins of the connector in any of the above embodiments, and are not limited thereto.

[0059] In one embodiment, the housing forms an interface of the connector, and an insertion direction of the interface is perpendicular to the PCBA, or an insertion direction of the interface is parallel to the PCBA.

[0060] It can be understood that the connector assembly in this embodiment includes the connector in any of the above embodiments. When the connector has further beneficial effects compared to the traditional connector, the connector assembly also has further beneficial effects compared to the traditional connector assembly.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the application. It should be noted that, for a person of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A connector, characterized in that: The connector comprises a housing, a plurality of fixed pins and a plurality of signal pins; the fixed pins are arranged on the welding surface of the housing; The connector occupies a first width a1 in the width direction of the welding surface; The plurality of fixed pins have a second width a2 in the width direction, and the second width a2 is the maximum width between the plurality of fixed pins in the width direction; the second width a2 is less than or equal to the first width a1; The plurality of signal pins have a third width a3 in the width direction, and the third width a3 is the maximum width between the plurality of signal pins in the width direction; the second width a3 is less than or equal to the first width a1; Wherein, when a2≥a3, the difference between the first width a1 and the second width a2 is 0 mm to 0.5 mm; When a2≤a3, the difference between the first width a1 and the third width a3 is 0 mm to 0.5 mm.

2. The connector according to claim 1, characterized in that: The plurality of fixing pins are arranged in at least two rows along the width direction of the welding surface.

3. The connector according to claim 2, characterized in that: The projection shapes of the fixing pins on the welding surface are the same.

4. The connector according to claim 2, characterized in that: The plurality of fixing pins are arranged in a first row and a second row along a width direction of the welding surface, and the projection shapes of the fixing pins in the first row and the fixing pins in the second row on the welding surface are different.

5. The connector according to claim 1 or 2, characterized in that: The plurality of signal pins are arranged in at least one row along the width direction of the welding surface.

6. The connector according to claim 5, characterized in that: The plurality of signal pins are arranged in two rows along the width direction of the welding surface, and the widths of the signal pins in one row are different.

7. The connector according to claim 5, characterized in that: The plurality of signal pins are arranged in two rows along the width direction of the welding surface, and the signal pins in the same row have the same width.

8. The connector according to claim 1, characterized in that: The connector includes a type C connector.

9. A connector assembly, characterized in that: The invention comprises a PCBA and a connector as described in any one of claims 1 to 8, wherein the PCBA has a plurality of first soldering through holes and a plurality of second soldering through holes; the plurality of first soldering through holes are used for soldering a plurality of fixed pins in the connector as described in any one of claims 1 to 8; and the plurality of second soldering through holes are used for soldering a plurality of signal pins in the connector as described in any one of claims 1 to 8.

10. The connector assembly according to claim 9, characterized in that The shell forms an interface of the connector, and an insertion direction of the interface is perpendicular to the PCBA, or an insertion direction of the interface is parallel to the PCBA.

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