Electric connector

Abstract

The utility model provides an electric connector, which is combined with a mating connector and is provided with a shell, a signal terminal and a power supply terminal. The housing includes first to fourth wall portions, and a skirt portion protruding outward in a width direction of the electrical connector. The electric connector comprises a first signal terminal and a second signal terminal which are arranged on at least the first wall part and arranged in the length direction of the electric connector. The first signal terminal is provided with a first bending part, a first extending part and a first tail part. The second signal terminal is provided with a second bending part, a second extending part and a second tail part. The first tail portion and the second tail portion are arranged on the skirt portion. In a height direction of the electrical connector, a lowermost surface of the first tail portion is positioned higher than a lowermost surface of the second tail portion.

Description

Technical Field

[0001] The utility model relates to an electrical connector, and more specifically, to the shape of signal terminals of an electrical connector (plug connector or receptacle connector (socket connector)), the arrangement between the signal terminals, and the relationship with a housing. Background Art

[0002] Generally, in the case where substrates are connected to each other, two connectors connected to the respective substrates by a method such as soldering are used, and the two connectors can be connected to each other. Here, one of the two connectors is a plug connector, and the other is a socket connector. The socket connector may also be referred to as a receptacle connector. Such a plug connector and a socket connector may be formed by arranging terminals in a mold portion. The plug connector and the socket connector may be fastened to each other to form an electrical connector assembly.

[0003] As electronic devices become smaller, connectors are becoming smaller and lower-profile. However, there is a certain degree of limitation in reducing the pitch or making the parts smaller to make connectors smaller and lower-profile.

[0004] On the other hand, as connectors become smaller, it is more difficult to ensure the durability of connectors than before. This is because the components are smaller and are more likely to be damaged or deformed even with less force than before.

[0005] In addition, as a type of deformation, if the metal terminal maintains a specific shape during the connection process between connectors or in the connected state, plastic deformation may occur. The so-called plastic deformation is the opposite concept of elastic deformation, which means that even if the load applied to the material is removed, the material will not return to its original shape and remain deformed. The reason is that all materials are usually elastic, but when stress is generated, the shape will be deformed. For the terminals of connectors that are becoming increasingly miniaturized, there is also a need to prevent this plastic deformation.

[0006] Furthermore, when a resin mold (housing) of a connector is sometimes produced by insert molding, whether the housing is properly molded depends on the fluidity of the resin, and therefore there is a need to improve the fluidity of the resin.

[0007] Furthermore, when a terminal is usually made of a metal material, there are restrictions on the structure of the terminal itself and the resin mold depending on the manufacturing method (for example, whether to use a deep drawing method), so there is also a need to consider this point.

[0008] In insert molding, etc., there is also a need to consider the problem of the resin molded object covering the metal material. Utility Model Content

[0009] [Problems to be Solved by the Utility Model]

[0010] The technical problem to be solved by the utility model is to prevent short circuits between adjacent terminals in surface mounting technology (SMT).

[0011] In order to prevent such a short circuit, a step difference (height difference H) is used.

[0012] In addition, the subject of the present invention is to prevent the lead from burning by using the step and the groove.

[0013] That is, the problem is to provide a structure that prevents lead from burning by utilizing a combination of the height difference H and the wider second groove 10-5-G2.

[0014] Another problem is to achieve the effect of preventing short circuit by preventing lead from burning, rather than making a structure having such effect by a separate process, so as to achieve the effect of preventing lead from burning and preventing short circuit without making the manufacturing process more complicated.

[0015] In addition, the problem is to prevent the terminal from being unformed and to correct the position of the terminal by utilizing the shape of the first groove 10-5-G1 around the first tail portion 10-3A-T1.

[0016] Another problem is that two or more types of signal terminals 10 - 3 are arranged alternately (for example, in a zigzag pattern), and the mounting pitch does not necessarily have to be the pitch of the signal terminals 10 - 3 .

[0017] The technical issues of the present invention are not limited to the above-mentioned technical issues, and other technical issues not mentioned can be clearly understood by ordinary technicians according to the following description.

[0018] [Technical means to solve the problem]

[0019] According to the utility model, an electrical connector is provided, wherein the electrical connector is an electrical connector combined with a mating connector, comprising:

[0020] The housing comprises: a base portion; a first wall portion protruding from the upper surface of the base portion; a second wall portion protruding from the upper surface of the base portion and intersecting with the first wall portion; a third wall portion protruding from the upper surface of the base portion, intersecting with the second wall portion and opposite to the first wall portion; a fourth wall portion protruding from the upper surface of the base portion, intersecting with the first wall portion and the third wall portion and opposite to the second wall portion; and a skirt portion protruding from the first wall portion and the third wall portion to the outside in the width direction of the electrical connector; and

[0021] The first signal terminal and the second signal terminal are arranged on at least the first wall portion and arranged in a longitudinal direction of the electrical connector.

[0022] The first signal terminal has a first bending portion, a first extending portion, and a first tail portion.

[0023] The second signal terminal has a second bent portion, a second extending portion, and a second tail portion.

[0024] The first tail portion and the second tail portion are arranged on the skirt portion,

[0025] In the height direction of the electrical connector, the lowermost portion of the first tail portion is positioned higher than the lowermost portion of the second tail portion.

[0026] Preferably, the first tail portion is not mounted on the substrate, and the second tail portion is mounted on the substrate.

[0027] Preferably, in a width direction of the electrical connector, the second tail portion protrudes outwardly more than the first tail portion.

[0028] Preferably, there is a first groove on the skirt portion at the upper side where the first tail portion is located,

[0029] There is a cutout portion in the first groove,

[0030] When viewed from the upper side of the electrical connector, a portion of the upper surface of the first tail portion is exposed through the cutout portion of the first groove.

[0031] Preferably, when viewed from the side of the electrical connector, the first groove is semicircular in shape.

[0032] Preferably, there is a second groove on the skirt portion at the lower side where the first tail portion is located,

[0033] When viewed from a bottom side of the electrical connector, at least a portion of a lower surface of the first tail portion is exposed through the second groove.

[0034] Preferably, when viewed from the side of the electrical connector, the second groove is in a quadrilateral shape.

[0035] Preferably, the first extension portion and the second extension portion serve as contact portions with signal terminals of a mating connector.

[0036] Preferably, the first signal terminal and the second signal terminal are arranged side by side in the length direction of the electrical connector.

[0037] Preferably, the first signal terminal additionally includes a third extending portion and a third tail portion.

[0038] [Effects of the utility model]

[0039] According to the utility model, for example, by Figure 4a , Figure 4b As shown in the description, the third tail 10-3A-T3 of the first signal terminal 10-3A and the second tail 10-1B-T2 of the second signal terminal 10-3B are used as mounting parts 10-3A-M and 10-3B-M, and their lower surfaces are located at the same height. In addition, the first tail 10-3A-T1 of the first signal terminal 10-3A is positioned in a manner H higher than the third tail 10-3A-T3 of the first signal terminal 10-3A, and does not function as a mounting part. The reason for setting such a height difference H is to prevent short circuits with adjacent terminals in surface mounting technology (Surface Mount Technology).

[0040] That is, when the second tail 10-3B-T2 of the second signal terminal 10-3B is surface mounted on a substrate (not shown), solder or the like is used. For example, if the connector 10 of the present invention has a very small size for a smartphone or the like, the solder applied to the second tail 10-3B-T2 may spread to the vicinity of the first tail 10-3A-T1 of the adjacent adjacent terminal (i.e., the first signal terminal 10-3A). In this way, an undesired circuit connection may occur, resulting in a short circuit. In order to prevent such a short circuit, the present invention is provided as follows. Figure 7 As shown, the first tail portion 10 - 3A-T1 (not a mounting portion) is positioned in a manner that is higher H than the second tail portion 10 - 3B-T2 (which is a mounting portion).

[0041] In addition, at least a portion of this height difference H is also the height (depth) of the second groove 10-5-G2. Figures 5 to 7The second groove 10-5-G2 of the shape shown in the figure prevents lead burning. That is, although the solder is not actively stored in the second groove 10-5-G2, if the solder at the adjacent terminal part (i.e., the second tail 10-3B-T2) inevitably diffuses to the side, some solder may be present (stored) in the second groove 10-5-G2 or even in the lower part thereof, and therefore (if the amount of diffused solder is not much), the solder will not reach the first tail 10-3A-T1. Therefore, short circuit can be prevented.

[0042] That is, it can also be regarded as a structure that prevents lead from burning by utilizing the combination of the height difference H and the wider second groove 10-5-G2.

[0043] In addition, the first groove 10-5-G1 and / or the second groove 10-5-G2 play the effect of preventing short circuit by preventing lead from burning, and since the structure having such effect is not made by a separate process, but is the result (trace) of the holding of the fixing device during resin molding, there is an advantage that the process steps are not increased. In short, it has the effect of preventing lead from burning and preventing short circuit, and also has the effect of not becoming too complicated in the manufacturing process.

[0044] In addition, it can be seen that the first groove 10-5-G1 is an R shape (rounded shape), and according to this rounded shape, the SMT terminal part (i.e., the second tail 10-3B-T2) and the adjacent terminal part (i.e., the first tail 10-3A-T1) having a step difference (height difference H) can be prevented from being unformed and have the effect of correcting the position of the terminal. That is, compared with the case where the entire surface of the upper surface of the first tail 10-3A-T1 is exposed, since the R shape of the first groove 10-5-G1 only exposes a part of the linear portion, it can not only more firmly grasp the first signal terminal 10-3A (especially the first tail 10-3A-T1 therein), but also help to correct the position of the corresponding first tail 10-3A-T1.

[0045] For reference, unlike the example shown, although it is not excluded that the second groove 10-5-G2 is in an R shape and the first groove 10-5-G1 is in a quadrilateral shape, in this case, the effect of preventing the burning of the lead by the second groove 10-5-G2 will be somewhat weakened. The reason is that the soldered part is not the upper surface but the lower surface (that is, the lower surface of the second tail 10-3B-T2), so it is very necessary to prevent the burning of the lead on the lower surface side of the first tail 10-3A-T1. Therefore, although not limited to this, as shown in the figure, it is preferably in the following form: the second groove 10-5-G2 is formed into a quadrilateral with a slightly larger area exposed to prevent the burning of the lead, and the first groove 10-5-G1 is formed into an R shape with a slightly smaller area exposed, which helps to prevent unformation (resin fully surrounds the first tail 10-3A-T1) and perform position correction (selection).

[0046] Although from Figure 1 It can also be known, but observation Figure 2 , it is easier to see that the two types of signal terminals 10-3 are arranged alternately. That is, not limited to this, but in Figure 1 In the figure, as the signal terminals 10-3 extend in the length direction (X direction) of the connector 10, they are alternately arranged in the following manner: the primary mounting portion 10-3A-M is located on the inner side in the connector width direction (seen through the through hole 10-5-PH), and the secondary mounting portion 10-3B-M is located on the outer side in the connector width direction. Figure 2 Among the multiple mounting portions 10-3A-M existing on the inner side of the width direction (Y direction) of the connector 10, the mounting portion 10-3A-M of the signal terminal 10-3A provided on the first wall portion 10-5-W1 and the mounting portion 10-3A-M of the signal terminal 10-3A provided on the third wall portion 10-5-W3 are arranged in a zigzag shape. In addition, among the multiple mounting portions 10-3B-M existing on the outer side of the width direction (Y direction) of the connector 10, the mounting portion 10-3B-M of the signal terminal 10-3B provided on the first wall portion 10-5-W1 and the mounting portion 10-3B-M of the signal terminal 10-3B provided on the third wall portion 10-5-W3 are arranged in a zigzag shape. Therefore, the mounting pitch is not necessarily in accordance with the pitch of the signal terminal 10-3 (the mounting pitch is about twice the pitch of the signal terminal 10-3), so many signal terminals 10-3 can be placed in a narrow space. The fact that the mounting portions 10 - 3A-M of the signal terminals 10 - 3 are arranged in a zigzag pattern can be easily confirmed through the through holes 10 - 5 -PH.

[0047] However, this is just an example of the effect, and the effect brought about by the configuration of the present invention is of course not limited to this.

[0048] The effects of the present invention are not limited to the above-mentioned examples, and more various effects are included in this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a perspective view of an example of a plug connector 10 in the electrical connector according to the present invention.

[0050] Figure 2 yes Figure 1 A top view of the plug-in connector 10 is shown.

[0051] Figure 3 yes Figure 1 1 is a side view of the plug connector 10.

[0052] Figure 4a Indicated in Figure 1 , Figure 2 A first signal terminal 10 - 3A is arranged along the AB line.

[0053] Figure 4b Indicated in Figure 1 , Figure 2 A second signal terminal 10 - 3B is arranged along the CD line direction.

[0054] Figure 5 It is a partially enlarged view of the plug connector 10 of the present invention.

[0055] Figure 6 It is to slightly change the angle to express Figure 5 Illustration of a diagram.

[0056] Figure 7 From Figure 6 Another different angle Figure 5 , and also as a side view Figure 3 part of.

[0057] Figure 8 From another angle Figures 5 to 7 .

[0058] [Explanation of Reference Numerals]

[0059] 10: (plug) connector;

[0060] 10-1: Power terminal;

[0061] 10-3: Signal terminal;

[0062] 10-3A: First signal terminal;

[0063] 10-3A-M: mounting portion of a substrate (not shown);

[0064] 10-3A-T1: first tail portion (does not function as a mounting portion for a substrate (not shown));

[0065] 10-3A-T3: a third tail portion (which may also function as a mounting portion (10-3A-M) of a substrate (not shown));

[0066] 10-3B: Second signal terminal;

[0067] 10-3B-M: mounting portion of a substrate (not shown);

[0068] 10-3B-T2: second tail portion (which may also function as a mounting portion (10-3B-M) of a substrate (not shown));

[0069] 10-5: Shell (mold part);

[0070] 10-5-B: base;

[0071] 10-5-G1: first groove;

[0072] 10-5-G2: second groove;

[0073] 10-5-PH: through hole (central hole);

[0074] 10-5-W1: first wall portion;

[0075] 10-5-W2: second wall portion;

[0076] 10-5-W3: third wall;

[0077] 10-5-W4: Fourth wall. DETAILED DESCRIPTION

[0078] The advantages and features of the present invention, as well as methods for achieving the same, will become clear with reference to the accompanying drawings and the embodiments to be described in detail. However, the present invention is not limited to the embodiments disclosed below, but is implemented in various forms that are different from each other, and the present embodiments are provided only to make the disclosure of the present invention complete and to fully convey the scope of the present invention to those with ordinary knowledge in the technical field to which the present invention belongs, and the present invention is defined only by the scope of the claims. Throughout the entire specification, the same reference symbols refer to the same constituent elements.

[0079] Figure 1 It is a perspective view of an example of a plug connector 10 in the electrical connector according to the present invention.

[0080] In this specification, the electrical connector may be referred to as the plug connector 10, as the case may be ...

[0081] exist Figure 1 , as an example, a power terminal 10 - 1 (also referred to as a hardware terminal or a hardware), a signal terminal 10 - 3 , and a housing 10 - 5 (mold portion) of the plug connector 10 are shown.

[0082] The power terminal 10-1 (metal fitting) is a metal structure used to supplement the strength of the connector 10. The power terminal 10-1 can input and output power electrical signals. Figure 1 In the embodiment, the hardware and the power terminal are integrated. However, the present invention is not limited thereto, and the hardware and the power terminal can also be separated and made of separate parts.

[0083] The signal terminal 10-3 can input and output data signals. In this embodiment, the signal terminal 10-3 includes two types (ie, a first signal terminal 10-3A and a second signal terminal 10-3B). Figure 4a , Figure 4b etc. describe it in detail.

[0084] In addition, for example, the signal terminal (10-3) may also be composed of four pins (PIN) that allow a current of 0.3A, and may be a terminal that allows a current exceeding 0.3A, such as 5A, to function as a power supply terminal. However, the number of pins being four is an example. For reference, Figure 1 In the example of FIG. 5 , the number of the signal terminals 10 - 3 is 44 (first signal terminals 10 - 3A (22 terminals), second signal terminals 10 - 3B (22 terminals)).

[0085] The housing 10-5 has a base portion 10-5-B. The housing 10-5 has a wall portion protruding from the upper surface of the base portion, and the power terminal 10-1 (fitting), the signal terminal 10-3, etc. are formed on the wall portion.

[0086] The wall portion is generally formed by four parts, including a first wall portion 10-5-W1, a second wall portion 10-5-W2, a third wall portion 10-5-W3, and a fourth wall portion 10-5-W4. Figure 1 As shown, it can be seen that the first wall portion 10-5-W1-the second wall portion 10-5-W2-the third wall portion 10-5-W3-the fourth wall portion 10-5-W4 are connected in the order, and the fourth wall portion 10-5-W4 is connected to the first wall portion 10-5-W1 again. Figure 1 In the figure, the connector is roughly rectangular, the first wall portion 10-5-W1 and the third wall portion 10-5-W3 are side walls, and the second wall portion 10-5-W2 and the fourth wall portion 10-5-W4 are end walls.

[0087] The housing 10-5 (mold part) of the plug connector 10 is preferably made of plastic material, such as liquid crystal polymer (LCP). In addition, the housing 10-5 can be formed of an insulator including resin and epoxy resin, but is not limited to this. The power terminal 10-1 and the signal terminal 10-3 of the plug connector 10 are preferably made of metal material, although not limited to this, but can also be copper, and the copper alloy can be plated with gold (nickel base).

[0088] Figure 2 yes Figure 1 A top view of the plug-in connector 10 is shown.

[0089] Although from Figure 1 It can also be known, but observation Figure 2 , it is easier to see that the two types of signal terminals 10 - 3 are arranged alternately.

[0090] That is, although not limited to this, Figure 1 As the signal terminals 10-3 proceed in the length direction (X direction) of the connector 10, they are alternately arranged in the following manner: one mounting portion 10-3A-M is located on the inner side in the width direction of the connector (as seen through the through hole 10-5-PH), and the other mounting portion 10-3B-M is located on the outer side in the width direction of the connector.

[0091] Refer to the following Figure 4a The mounting portion 10-3A-M of the first signal terminal 10-3A may also be referred to as the third tail portion 10-3A-T3. Figure 4b , the mounting portion 10 - 3B-M of the second signal terminal 10 - 3B may also be referred to as a second tail portion 10 - 3B-T2.

[0092] In addition, Figure 2 In the figure, among the multiple mounting portions 10-3A-M existing on the inner side of the width direction (Y direction) of the connector 10, the mounting portion 10-3A-M of the signal terminal 10-3A arranged on the first wall portion 10-5-W1 and the mounting portion 10-3A-M of the signal terminal 10-3A arranged on the third wall portion 10-5-W3 are arranged in a zigzag shape.

[0093] In addition, among the multiple mounting portions 10-3B-M existing on the outside of the connector 10 in the width direction (Y direction), the mounting portion 10-3B-M of the signal terminal 10-3B arranged on the first wall portion 10-5-W1 and the mounting portion 10-3B-M of the signal terminal 10-3B arranged on the third wall portion 10-5-W3 are arranged in a zigzag shape.

[0094] Therefore, the mounting pitch does not necessarily need to be the pitch of the signal terminals 10 - 3 (the mounting pitch is about twice the pitch of the signal terminals 10 - 3 ), so that many signal terminals 10 - 3 can be placed in a narrow space.

[0095] Figure 3 yes Figure 1 1 is a side view of the plug connector 10.

[0096] Figure 3 Observed from the side Figure 1 FIG. 1 is a diagram of a plug connector 10 shown.

[0097] It can be seen that as the signal terminals 10 - 3 , the first signal terminals 10 - 3A and the second signal terminals 10 - 3B are arranged alternately.

[0098] exist Figures 1 to 3 In the example, the first signal terminal 10-3A and the second signal terminal 10-3B are arranged alternately one by one, but it is not necessarily limited to this, and any arrangement can be made. For example, one first signal terminal 10-3A and two second signal terminals 10-3B can be arranged continuously, and even other arrangements without regularity are not excluded. In addition, it is not necessarily limited to two types of signal terminals, and it can also be three or more types of signal terminals.

[0099] However, in terms of optimizing the arrangement, it is preferred that the first signal terminals 10-3A and the second signal terminals 10-3B are arranged alternately one by one and arranged in a zigzag pattern from the perspective of the other wall portion (the first wall portion 10-5-W1 and the third wall portion 10-5-W3).

[0100] Figure 4a Indicated in Figure 1 , Figure 2 A first signal terminal 10 - 3A is arranged along the AB line.

[0101] exist Figure 4a In the figure, the right side is the outer side in the width direction of the connector 10, and the left side is the inner side in the width direction of the connector 10. As it goes from the outer side to the inner side in the width direction, the first signal terminal 10-3A has a first tail portion 10-3A-T1-a first extension portion 10-3A-E1-a first bent portion 10-3A-B1-a third extension portion 10-3A-E3-a third tail portion 10-3A-T3.

[0102] The third tail portion 10 - 3A-T3 functions as a mounting portion 10 - 3A-M for a substrate (not shown).

[0103] The lower end of the first tail portion 10-3A-T1 is formed in a manner higher than the lower end of the third tail portion 10-3A-T3 (ie, the mounting portion 10-3A-M) by a length H, and the first tail portion 10-3A-T1 does not function as a mounting portion of the substrate.

[0104] Figure 4b Indicated in Figure 1 , Figure 2 A second signal terminal 10 - 3B is arranged along the CD line direction.

[0105] exist Figure 4b In the figure, the right side is also the outer side in the width direction of the connector 10, and the left side is the inner side in the width direction of the connector 10. Going from the outer side to the inner side in the width direction, the second signal terminal 10-3B has a second tail portion 10-3B-T2-a second extension portion 10-3B-E2-a second bent portion 10-3B-B2.

[0106] The second tail portion 10 - 3B-T2 functions as a mounting portion 10 - 3B-M for a substrate (not shown).

[0107] about Figure 4a , (in the first signal terminal 10-3A) the lower end of the first tail portion 10-3A-T1 is formed in a manner that is H higher than the lower end of the third tail portion 10-3A-T3 (i.e., the mounting portion 10-3A-M), so the lower end of the second tail portion 10-3B-T2 of the second signal terminal 10-3B is at the same height as the lower end of the third tail portion 10-3A-T3 of the first signal terminal 10-3A, and therefore, finally the lower end of the first tail portion 10-3A-T1 of the first signal terminal 10-3A and the lower end of the second tail portion 10-3B-T2 of the second signal terminal 10-3B also have a height difference of H (refer to the following description Figure 7 wait).

[0108] Figure 5 It is a partially enlarged view of the plug connector 10 of the present invention.

[0109] like Figure 1 , Figure 2 , Figure 5 As shown in the above, the housing 10-5 has a portion protruding outward in the width direction, which is referred to as a skirt 10-5-S.

[0110] The skirt portion 10 - 5 -S surrounds the first tail portion 10 - 3A-T1 of the first signal terminal 10 - 3A, and also surrounds the second tail portion 10 - 3B-T2 of the second signal terminal 10 - 3B.

[0111] More specifically, the upper part and most of the side of the second tail 10-3B-T2 of the second signal terminal 10-3B are surrounded by the skirt 10-5-S, and a part of the side and the lower surface of the second tail 10-3B-T2 are exposed. The exposed lower surface serves as the mounting surface of the mounting portion 10-3B-M.

[0112] This is manifested in Figure 5 In the following, Figure 6 Can also be known.

[0113] Furthermore, most of the side portion of the first tail portion 10-3A-T1 of the first signal terminal 10-3A is surrounded by the skirt portion 10-5-S, and the entire lower surface of the first tail portion 10-3A-T1 is substantially exposed by a roughly quadrilateral-shaped groove (second groove 10-5-G2), and a portion of the upper surface of the first tail portion 10-3A-T1 is exposed by a rounded groove (first groove 10-5-G1).

[0114] This is manifested in Figure 5 In the following, Figure 6 Can also be known.

[0115] Figure 6 It is to slightly change the angle to express Figure 5 Illustration of a diagram.

[0116] Although in Figure 5 This is also explained in Figure 5 and Figure 6 , the shapes described below can be more clearly understood.

[0117] That is, the skirt portion 10 - 5 -S surrounds the first tail portion 10 - 3A-T1 of the first signal terminal 10 - 3A, and also surrounds the second tail portion 10 - 3B-T2 of the second signal terminal 10 - 3B.

[0118] The upper part and most of the side of the second tail 10-3B-T2 of the second signal terminal 10-3B are surrounded by the skirt 10-5-S, and a part of the side and the lower surface of the second tail 10-3B-T2 are exposed. The exposed lower surface serves as the mounting surface of the mounting portion 10-3B-M.

[0119] Furthermore, most of the side portion of the first tail portion 10-3A-T1 of the first signal terminal 10-3A is surrounded by the skirt portion 10-5-S, and the entire lower surface of the first tail portion 10-3A-T1 is substantially exposed by a roughly quadrilateral-shaped groove (second groove 10-5-G2), and a portion of the upper surface of the first tail portion 10-3A-T1 is exposed by a rounded groove (first groove 10-5-G1).

[0120] Figure 7From Figure 6 Another different angle Figure 5 , and also as a side view Figure 3 part of.

[0121] pass Figure 4a , Figure 4b As shown in the description, the third tail portion 10-3A-T3 of the first signal terminal 10-3A and the second tail portion 10-1B-T2 of the second signal terminal 10-3B are used as mounting portions 10-3A-M and 10-3B-M, and their lower surfaces are located at the same height. In addition, the first tail portion 10-3A-T1 of the first signal terminal 10-3A is positioned higher than the third tail portion 10-3A-T3 of the first signal terminal 10-3A by H, and does not function as a mounting portion.

[0122] Although in Figure 7 It looks like overlap, but observation Figure 2 It can be easily understood that the third tail 10-3A-T3 is located at Figure 7 The first tail portion 10-3A-T1 is located at the rear side of the diagram (ie, the inner side of the width direction of the connector 10). Figure 7 The front side in the drawing (ie, the outer side in the width direction of the connector 10 ).

[0123] The reason for setting such a height difference H is to prevent a short circuit with an adjacent terminal in the surface mount technology (Surface Mount Technology). That is, when the second tail 10-3B-T2 of the second signal terminal 10-3B is surface mounted (surface mount) to a substrate (not shown), solder or the like is used. For example, if the connector 10 of the present invention has a very small size for a smartphone or the like, the solder applied to the second tail 10-3B-T2 may spread to the vicinity of the first tail 10-3A-T1 of the adjacent adjacent terminal (i.e., the first signal terminal 10-3A). In this way, an undesired circuit connection may occur, resulting in a short circuit.

[0124] In order to prevent this short circuit, the utility model Figure 7 As shown, the first tail portion 10-3A-T1 (not the mounting portion) is positioned in a manner that is higher than the second tail portion 10-3B-T2 (which is the mounting portion). In addition, at least a portion of this height difference H is also the height (depth) of the second groove 10-5-G2. Figures 5 to 7The second groove 10-5-G2 of the shape shown can prevent lead burning. That is, although the solder is not actively stored in the second groove 10-5-G2, if the solder at the adjacent terminal part (i.e., the second tail 10-3B-T2) inevitably diffuses to the side, the second groove 10-5-G2 and even the lower part thereof may have (store) some solder, so (if the amount of diffused solder is not much), the solder will not reach the first tail 10-3A-T1. Therefore, short circuit can be prevented.

[0125] That is, it can also be regarded as a structure that prevents lead from burning by utilizing the combination of the height difference H and the wider second groove 10-5-G2.

[0126] In addition, although not limited to this, the first groove 10-5-G1 and the second groove 10-5-G2 are not formed by intentionally cutting or processing the shell 10-5, but are formed by having a tool grip the first signal terminal 10-3A from the top and bottom during the resin molding process, and no resin is molded at the position occupied by the gripping tool.

[0127] Furthermore, it can be observed that the first groove 10-5-G1 is rounded, which can be seen as a result of the tool for gripping the terminal 10-3A (especially the tool for gripping the upper surface of the first tail portion 10-3A-T1) being round and leaving a mark.

[0128] That is, the first groove 10-5-G1 and / or the second groove 10-5-G2 have the effect of preventing short circuit by preventing lead burning, but do not make a structure having such effect by a separate process, and have the following advantages: since it is the result (trace) brought about by the gripping of the fixing mechanism during the resin molding, the number of processes does not increase additionally. In short, it has the effect of preventing lead burning and preventing short circuit, and also has the effect of not making the manufacturing process too complicated.

[0129] Figure 8 From another perspective Figures 5 to 7 .

[0130] For example, in Figure 7 In the figure, the outer side in the width direction is tilted slightly downward to Figure 8 Observe from the angle.

[0131] observe Figure 8 It can be confirmed that only a portion of the upper surface of the first tail portion 10-3A-T1 is linearly exposed along the center portion of the first groove 10-5-G1 (ie, a cutout portion is formed in the first groove 10-5-G1).

[0132] In addition, it can be confirmed that the lower surface of the first tail portion 10-3A-T1 is exposed with a larger area along the second groove 10-5-G2.

[0133] As described above, the first groove 10-5-G1 is a shape presented due to the following reasons: an instrument (instrument object) having a rounded shape grasps the upper surface of the first tail portion 10-3A-T1, and an instrument (instrument object) having a quadrilateral shape on the opposite side grasps the lower surface of the first tail portion 10-3A-T1, and resin is introduced in this state, and the resin is molded only in the portion other than the instrument object, thereby forming a shell 10-5 (including the skirt 10-5-S).

[0134] In particular, it can be seen that the first groove 10-5-G1 is R-shaped (rounded shape). According to this rounded shape, the SMT terminal part (i.e., the second tail 10-3B-T2) and the adjacent terminal part (i.e., the first tail 10-3A-T1) having a step difference (height difference H) can be prevented from being unformed and have the effect of correcting the position of the terminal.

[0135] That is, compared with the case where the entire surface of the upper surface of the first tail portion 10-3A-T1 is exposed, due to the R-shape of the first groove 10-5-G1, when only a portion of the linear portion is exposed, it is possible not only to more firmly grasp the first signal terminal 10-3A (especially, the first tail portion 10-3A-T1 therein), but also to help perform position correction of the corresponding first tail portion 10-3A-T1.

[0136] For reference, unlike the example shown, although it is not excluded that the second groove 10-5-G2 is R-shaped and the first groove 10-5-G1 is quadrilateral, in this case, the effect of preventing the lead from burning by the second groove 10-5-G2 is somewhat weakened. The reason is that the soldered part is not the upper surface but the lower surface (that is, the lower surface of the second tail 10-3B-T2), so it is very necessary to prevent the lead from burning on the lower surface side of the first tail 10-3A-T1.

[0137] Therefore, although not limited to this, as shown in the figure, it is preferably in the following form: the second groove 10-5-G2 is formed into a quadrilateral exposing a slightly larger area to prevent lead burning, and the first groove 10-5-G1 is formed into an R shape exposing a slightly smaller area, which helps to prevent unforming (the resin fully surrounds the first tail portion 10-3A-T1) and perform position correction (selection).

[0138] In addition, for example, the first groove 10-5-G is described as an R shape (half-moon shape), but it is not necessarily limited to this, and it can also be any shape (for example, a quadrilateral) with a wide upper side and a narrow lower side (that is, a cutout portion). That is, the first tail portion 10-3A-T1 can be well fixed by fully covering the upper surface of the first tail portion 10-3A-T1. Extremely, the first groove 10-5-G1 in the shape of an inverted triangle is not impossible, but the shape of the corresponding groove 10-5-G1 is based on the shape of the device for grasping the first tail portion 10-3A-T1 when the housing 10-5 (or at least the skirt 10-5-S) is manufactured after resin molding. Therefore, the disadvantage is that it is not easy to grasp only the lower vertex of the inverted triangle from the upper surface side of the first tail portion 10-3A-T1 (even if other components are supported upward on the lower surface side of the first tail portion 10-3A-T1). Therefore, although not limited to this, the first groove 10-5-G1 is preferably in a half-moon shape (if necessary, the lower part is slightly cut (having a cutout portion)), or a quadrilateral shape that is wide at the top and narrow at the bottom, etc.

[0139] In addition, for example, the matters described for the plug connector 10 may also be applied to a receptacle connector (not shown) within the limits not contradictory in nature. That is, the plug connector 10 is illustrated and described, but it should not be construed as being limited to the plug connector.

[0140] However, the contents described so far are examples of the configuration and effects, and the configuration of the present invention is of course not limited to the contents shown in the drawings or the effects produced by the corresponding configurations are not limited thereto.

[0141] The embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and can be manufactured in various forms different from each other. It can be understood by those with ordinary knowledge in the technical field to which the present invention belongs that the present invention can be implemented in other specific forms without changing the technical ideas or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all aspects and not restrictive.

Claims

1. An electrical connector is an electrical connector that is combined with a mating connector, characterized in that include: The housing comprises: a base portion; a first wall portion protruding from the upper surface of the base portion; a second wall portion protruding from the upper surface of the base portion and intersecting with the first wall portion; a third wall portion protruding from the upper surface of the base portion, intersecting with the second wall portion and opposite to the first wall portion; a fourth wall portion protruding from the upper surface of the base portion, intersecting with the first wall portion and the third wall portion and opposite to the second wall portion; and a skirt portion protruding from the first wall portion and the third wall portion to the outside in the width direction of the electrical connector; and The first signal terminal and the second signal terminal are arranged on at least the first wall portion and arranged in a longitudinal direction of the electrical connector. The first signal terminal has a first bending portion, a first extending portion, and a first tail portion. The second signal terminal has a second bent portion, a second extending portion, and a second tail portion. The first tail portion and the second tail portion are arranged on the skirt portion, In the height direction of the electrical connector, the lowermost portion of the first tail portion is positioned higher than the lowermost portion of the second tail portion.

2. The electrical connector according to claim 1, characterized in that: The first tail portion is not mounted on a substrate, and the second tail portion is mounted on the substrate.

3. The electrical connector according to claim 1, characterized in that: In the width direction of the electrical connector, the second tail portion protrudes outwardly from the first tail portion.

4. The electrical connector according to claim 1, characterized in that: A first groove is provided on the skirt portion at the upper side where the first tail portion is located, There is a cutout portion in the first groove, When viewed from the upper side of the electrical connector, a portion of the upper surface of the first tail portion is exposed through the cutout portion of the first groove.

5. The electrical connector according to claim 4, characterized in that: When viewed from the side of the electrical connector, the first groove is semicircular in shape.

6. The electrical connector according to claim 1, characterized in that: There is a second groove on the skirt at the lower side of the first tail portion, When viewed from a bottom side of the electrical connector, at least a portion of a lower surface of the first tail portion is exposed through the second groove.

7. The electrical connector according to claim 6, characterized in that: When viewed from the side of the electrical connector, the second groove is in a quadrilateral shape.

8. The electrical connector according to claim 1, characterized in that: The first extension portion and the second extension portion serve as contact portions with signal terminals of a mating connector.

9. The electrical connector according to claim 1, characterized in that: The first signal terminal and the second signal terminal are arranged side by side in the length direction of the electrical connector.

10. The electrical connector according to claim 1, characterized in that: The first signal terminal additionally includes a third extending portion and a third tail portion.

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