Electrical connector

Abstract

An electrical connector mounted to a substrate and coupled with a mating connector is provided. The electrical connector includes a first housing including a first wall portion, a second wall portion, a third wall portion, a fourth wall portion; power terminals arranged at the first wall portion and the third wall portion; signal terminals arranged at the second wall portion and the fourth wall portion; and a second housing including a bottom wall interconnecting the second wall portion and the fourth wall portion. The first housing is formed by a one-shot insert molding, and the second housing is formed by a two-shot insert molding.

Description

Technical Field

[0001] This utility model relates to an electrical connector. More specifically, this utility model relates to the structure of an electrical connector (plug connector or jack connector) that is combined with a mating connector (socket connector or plug connector). Background Technology

[0002] Typically, when substrates are interconnected, two connectors are used to connect to each substrate via methods such as soldering. These two connectors can be connected to each other. Here, one of the two connectors is a plug connector, and the other is a receptacle connector. The receptacle connector can also be called a receptacle connector. Such plug connectors and receptacle connectors can be formed by arranging terminals in a mold section. The plug connectors and receptacle connectors can be fastened together to form an electrical connector assembly.

[0003] With the trend towards miniaturization in electronic devices, the miniaturization and lower back profile of connectors is also a trend. However, in reality, there are certain limitations in reducing pitch or making parts smaller to achieve miniaturization and lower back profile of connectors.

[0004] On the other hand, while connectors are miniaturized, there are also aspects where ensuring their durability is more difficult than before. This is because the smaller components are more susceptible to breakage or deformation even under smaller forces.

[0005] Furthermore, as a type of deformation, plastic deformation may occur if the metal terminals maintain a specific shape during the connection process or while already connected between connectors. Plastic deformation, the opposite of elastic deformation, refers to a state where the material does not return to its original shape and remains deformed even after the load applied to it is removed. This is because all materials are generally elastic, but their shape deforms under stress. For the increasingly miniaturized connector terminals, there is a need to prevent this type of plastic deformation.

[0006] Furthermore, there are cases where resin molds (housings) for connectors are made using insert molding. In such cases, the correct molding of the housing depends on the fluidity of the resin, thus necessitating the improvement of resin fluidity.

[0007] In addition, when manufacturing terminals made of metal, there are usually limitations on the structure of the terminal itself and the resin mold depending on the manufacturing method (e.g., whether deep drawing is used), so it is necessary to take this point into consideration.

[0008] In addition, in insert molding and other processes, it is necessary to consider the issue of resin injection molding covering metal materials. Utility Model Content

[0009] [The problem that the utility model aims to solve]

[0010] The technical problem to be solved by this invention is to reduce the complexity of manufacturing even if it is not possible to use one-time molding to form connectors 10 with complex shapes (and / or very small shapes), or to make it easier to handle even more complex (or smaller) structures than currently available during manufacturing.

[0011] In addition, the following is a problem: even if it is not possible to manufacture a connector 10 with a complex shape (and / or a very small shape) in one piece, it is possible to firmly combine separately manufactured parts to manufacture a connector 10 with high overall strength.

[0012] In addition, the following is a research topic: to manufacture multiple signal terminals 10-3 of the same shape for reuse and arrangement, thereby improving manufacturing efficiency.

[0013] In addition, the following is a subject of study: to securely connect the elements constituting connector 10 to each other.

[0014] In addition, the following is a research topic: structurally, it is easy to manufacture while ensuring that the connector 10 as a whole consumes force evenly.

[0015] In addition, the following issue will be addressed: avoiding undesirable electrical connections caused by the proximity of the non-mounting part 10-3-NM and the mounting part 10-3-M.

[0016] In addition, the following is a research topic: to obtain a structure that can smoothly perform probe testing on non-mounted parts of 10-3-NM.

[0017] The technical issues of this utility model are not limited to those mentioned above, and other technical issues not mentioned can be clearly understood by those skilled in the art based on the following description.

[0018] [Technical means to solve the problem]

[0019] According to the present invention, an electrical connector is provided, which is an electrical connector mounted to a substrate and coupled with a mating connector, comprising: a first housing including: a first wall extending in the width direction of the electrical connector; a second wall connected to one end of the first wall and extending in the length direction of the electrical connector; a third wall connected to one end of the second wall and extending in the width direction of the electrical connector; a fourth wall connected to one end of the third wall and extending in the length direction of the electrical connector, and connected to the other end of the first wall; a power terminal disposed on the first wall and the third wall; a signal terminal disposed on the second wall and the fourth wall; and a second housing including a bottom wall connecting the second wall and the fourth wall to each other, wherein the first housing is formed by a primary insert molding and the second housing is formed by a secondary insert molding.

[0020] Furthermore, according to this utility model, an electrical connector is provided, which is an electrical connector mounted to a substrate and coupled with a mating connector, comprising: a first housing, including: a first wall extending in the width direction of the electrical connector; a second wall connected to one end of the first wall and extending in the length direction of the electrical connector; a third wall connected to one end of the second wall and extending in the width direction of the electrical connector; a fourth wall connected to one end of the third wall and extending in the length direction of the electrical connector, and connected to the other end of the first wall; a power terminal disposed on the first wall and the third wall; a signal terminal disposed on the second wall and the fourth wall; and a second housing having a skirt portion closely formed on the outer side of the second wall and the fourth wall in the width direction of the electrical connector, wherein the first housing is formed by a primary insert molding and the second housing is formed by a secondary insert molding.

[0021] Preferably, the bottom wall is also formed close to the lower side of the first wall portion and the third wall portion.

[0022] Preferably, the signal terminals are arranged adjacent to each other and their directions are alternated so that the mounting portions of the signal terminals are not adjacent to each other.

[0023] Furthermore, according to this utility model, a method for manufacturing an electrical connector is provided. The method comprises the following steps: a first housing including a first wall portion, a second wall portion, a third wall portion, and a fourth wall portion is insert-molded at power terminals and signal terminals to form a first molded article. The first wall portion extends in the width direction of the electrical connector; a second wall portion is connected to one end of the first wall portion and extends in the length direction of the electrical connector; a third wall portion is connected to one end of the second wall portion and extends in the width direction of the electrical connector; a fourth wall portion is connected to one end of the third wall portion and extends in the length direction of the electrical connector, and is connected to the other end of the first wall portion; in the first molded article, a portion of the signal terminals is cut to expose a cross-section; the first molded article is then subjected to a second insert-molding to form a second housing, wherein the second housing is formed outside the second wall portion and the fourth wall portion to cover the exposed cross-section outside the width direction of the electrical connector.

[0024] [Effects of the utility model]

[0025] According to this utility model, the following effects are achieved: the housing 10-5 is divided into multiple parts (not limited to this, but preferably into a first housing 10-5-1 and a second housing 10-5-2), and the connector 10 is not made into a complex shape (and / or a very small shape) by one-time molding. Since it can be made into a first housing 10-5-1 in the shape of an integral quadrilateral frame formed by one-time insert molding and a second housing 10-5-2 formed by subsequent secondary insert molding, the manufacturing complexity is reduced. Furthermore, even more complex structures (or smaller structures) than those currently available can be handled more easily during manufacturing.

[0026] Furthermore, as a comparative example not shown, assuming that only two sidewalls are formed using a single insert molding (single injection molding) (excluding the two end walls), it can also be assumed that the overall shape of the housing is formed using a secondary insert molding (secondary injection molding). However, for this comparative example not shown, the final overall shape may look similar to that of the present invention, but due to the difference in strength of the basic primary injection molded part (the quadrilateral frame shape of the present invention and the two separate strip (wall) shapes of the comparative example not shown), even if the combined secondary injection molded parts have similar shapes, there may be a fundamental difference in strength. In particular, from the viewpoint that the position of the joint between the primary and secondary injection molded parts also has a significant impact on strength, the connector 10 of the structure of the present invention is also superior in strength compared to the comparative example not shown.

[0027] Furthermore, instead of manufacturing a connector 10 in a single molding process that produces a complex shape (and / or a very small shape), it is divided into a first housing 10-5-1 and a second housing 10-5-2. Through the structure of fixing portions (not shown; e.g., protrusions and depressions) between these housings 10-5-1 and 10-5-2, the additional molded part (secondary injection molded part), i.e., the second housing 10-5-2, is firmly bonded to the primary injection molded part, i.e., the first housing 10-5-1, thereby manufacturing a connector 10 with high overall strength. That is, although not shown, it is preferable that there are protrusions and depressions between the first housing 10-5-1 and the second housing 10-5-2 as fixing portions. In this case, the mold material of the second housing 10-5-2 is filled and enclosed or filled in the protrusions and depressions of the first housing 10-5-1, and after the mold material solidifies, it achieves a firm connection between them.

[0028] It is known that each component is point-symmetrical with respect to the center point of connector 10, which is advantageous for manufacturing. However, this point-symmetric structure is only one example of its advantages and is not limited to it. When connector 10 is point-symmetrical as a whole, it has good effects on ease of manufacturing and on balancing forces when using the product after manufacturing.

[0029] Additionally, as in Figure 6a This can be confirmed from the overall appearance. Figure 6b The mounting portion 10-3-M of the signal terminal 10-3 on the right side is located outside the connector 10 in the width direction, and Figure 6b The mounting portion of the left-side signal terminal 10-3 is located inside the connector 10 in the width direction. At this time, the outer portion of the left-side signal terminal 10-3 in the width direction of the connector 10 (i.e., Figure 6b The portion seen in the image does not necessarily need to have its ends exposed to the outside of the connector 10 in the width direction. This is because if exposed, it might cause issues with... Figure 6b Problems such as unnecessary electrical connection (short circuit) at the mounting part of the other signal terminal 10-3 on the right side.

[0030] and, Figure 6b The reason for exposing the upper surface of the non-mounting portion 10-3-NM is to facilitate probe inspection. Furthermore, although not mandatory, it is preferable that there be a step difference of height d on the upper surface of the non-mounting portion 10-3-NM and the upper surface of the skirt portion 10-5-SK because when the probe (not shown) approaches and contacts from above for inspection, if the surfaces (of the same height) are the same, it may be difficult to distinguish and / or contact either the metal part or the mold part.

[0031] The effects of this utility model are not limited to the examples above, and more diverse effects are included in this specification. Attached Figure Description

[0032] Figure 1 This is a perspective view of the upper surface of an embodiment of the plug connector 10 in the electrical connector according to the present invention.

[0033] Figure 2 This is a diagram showing the arrangement of power terminal 10-1 (fitting) and signal terminal 10-3.

[0034] Figure 3a Shown in Figure 2 A top view of the first housing 10-5-1 formed by one-time insert molding at the power terminal 10-1 and signal terminal 10-3.

[0035] Figure 3b Shown in Figure 2 A bottom view of the first housing 10-5-1 formed by one-time insert molding at the power terminal 10-1 and signal terminal 10-3.

[0036] Figure 4a It is shown in Figure 3a A top view of the shape after a second insert molding is performed in the state of (i.e., the state of completing one insert molding).

[0037] Figure 4b It is aimed at Figure 4a The bottom view of a (top view).

[0038] Figure 5a It shows from Figure 4a A top view of the first shell, hypothetically removed.

[0039] Figure 5b It is aimed at Figure 5a The bottom view of a (top view).

[0040] Figure 6a Will Figure 1 A portion of it is enlarged and shown.

[0041] Figure 6b yes Figure 6a An enlarged view of the square section represented by the dashed lines.

[0042] Figure 7a , Figure 7b Is with Figure 6a , Figure 6b Comparative examples comparing the embodiments.

[0043] Explanation of reference numerals in the attached figures

[0044] 10: Plug connector

[0045] 10-1: Power terminals (or fittings)

[0046] 10-1-M1, 10-1-M2, 10-3-M: Mounting section for substrate (not shown)

[0047] 10-3: Signal terminal

[0048] 10-3-NM: Non-installation part

[0049] 10-5: Shell (Mold Section)

[0050] 10-5-1: First shell

[0051] 10-5-2: Second shell

[0052] 10-5-B: Base (bottom wall) (part of the second shell 10-5-2)

[0053] 10-5-C: Connecting part (part of the second housing 10-5-2)

[0054] 10-5-SK: Skirt (part of the second shell 10-5-2)

[0055] 10-5-W1: First wall section

[0056] 10-5-W2: Second wall section

[0057] 10-5-W3: Third wall section

[0058] 10-5-W4: Fourth wall section

[0059] C: Carrier

[0060] E1:( Figure 7a , Figure 7b In the comparative example) the end of the signal terminal

[0061] E2:( Figure 7a , Figure 7b In the comparative example, the ends (mounting parts) of adjacent signal terminals Detailed Implementation

[0062] The advantages and features of this invention, as well as the methods for achieving these advantages and features, will become apparent from the accompanying drawings and the embodiments described in detail below. However, this invention is not limited to the embodiments disclosed below, but is implemented in various different forms, and these embodiments are provided only to complete the disclosure of this invention and to fully convey the scope of the invention to those skilled in the art to which it pertains, and this invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same constituent elements.

[0063] Figure 1 This is a perspective view of the upper surface of an embodiment of the plug connector 10 in the electrical connector according to the present invention.

[0064] In this specification, the term "electrical connector" may be used as "plug connector 10" as appropriate, "socket connector (not shown)" (also called "receptacle connector") as appropriate, or "both plug connector 10 and socket connector (not shown) (or an assembly thereof) as appropriate."

[0065] Figure 1 The plug connector 10 is a structure that is fitted together with the socket connector (not shown).

[0066] exist Figure 1 As an example, the power terminal (fittings) 10-1, signal terminal 10-3, and housing (mold part) 10-5 of the plug connector 10 are shown. Although it will be described below, the housing 10-5 in this invention generally includes two parts (i.e., the first housing 10-5-1 and the second housing 10-5-2).

[0067] Power terminal 10-1 is a metal structure used to supplement the strength of connector 10, and can also input and output power signals. Signal terminal 10-3 can input and output data signals.

[0068] However, this is only one example and is not limited to this. For example, the power terminal 10-1 can also be made as a separate hardware component from the power terminal.

[0069] Figure 1 Fitting 10-1 is a power terminal and terminal 10-3 is a signal terminal, but it is not limited to this. Fitting 10-1 may not be a power terminal and terminal 10-3 may have both signal and power terminals.

[0070] Alternatively, for example, signal terminal 10-3 can also consist of four pins that allow a current of 0.3A, and can function as a power supply terminal by allowing a current exceeding 0.3A, such as 5A. However, having four pins is just one example. For reference, in Figure 1 In the example, there are 24 signal terminals 10-3. Figure 1 In the example, signal terminals 10-3 have the same shape and are arranged alternately with their orientation changed each time.

[0071] The housing 10-5 has a base 10-5-B (also called bottom, bottom surface, bottom wall). The housing 10-5 has a wall portion protruding from the upper surface of the base 10-5-B, and power terminal 10-1, signal terminal 10-3, etc. are formed on the wall portion.

[0072] The wall is generally formed by four parts, including the first wall 10-5-W1, the second wall 10-5-W2, the third wall 10-5-W3, and the fourth wall 10-5-W4. For example... Figure 1 As shown, the connectors are connected in the following order: first wall portion 10-5-W1, second wall portion 10-5-W2, third wall portion 10-5-W3, and fourth wall portion 10-5-W4, with the fourth wall portion 10-5-W4 again connected to the first wall portion 10-5-W1. The first wall portion 10-5-W1 and the third wall portion 10-5-W3 are end walls that extend in the width direction (Y direction) of the plug connector 10, while the second wall portion 10-5-W2 and the fourth wall portion 10-5-W4 are side walls that extend in the length direction (X direction) of the plug connector 10.

[0073] The housing (mold portion) 10-5 of the plug connector 10 is preferably made of plastic, such as liquid crystal polymer (LCP). Alternatively, the housing 10-5 may be formed of an insulator including resin and epoxy resin, but is not limited thereto. The power terminal 10-1 and signal terminal 10-3 of the plug connector 10 are preferably made of metal, but are not limited thereto; for example, copper may be used, and copper alloys may be plated with gold (nickel underlayer).

[0074] At the first wall portion 10-5-W1 and the third wall portion 10-5-W3 extending in the X direction (the length direction of the plug connector 10), multiple signal terminals 10-3 are alternately arranged with changing directions.

[0075] The following is through Figures 2 to 4b Come to Figure 1 The structure and manufacturing process of the plug connector 10 are explained.

[0076] Figure 2 This is a diagram showing the arrangement of power terminals (fittings) 10-1 and signal terminals 10-3.

[0077] Before forming the shell 10-5, as Figure 2 The diagram shows the arrangement of metal power supply terminals 10-1 and signal terminals 10-3.

[0078] Figure 2 The illustration is omitted, but since the power terminal 10-1 or signal terminal 10-3 cannot float in the air on its own, it is held in a state supported by a carrier (not shown). Figure 2The arrangement shown is self-evident. However, carrier C is shown to be connected to one of multiple signal terminals 10-3. Figure 2 The carrier should also be attached to other components not shown in the figure (not illustrated), but for the sake of simplicity, the carrier C is shown only at a portion of the signal terminals 10-3.

[0079] and Figure 1 The related information is also explained, but the signal terminals 10-3 have the same shape, and are arranged alternately in a serrated pattern each time the direction is changed. Figure 2 The part indicated by the dashed line is the part that will be cut off later.

[0080] Figure 3a Shown in Figure 2 A top view of the first housing 10-5-1 formed by one-time insert molding at the power terminal 10-1 and signal terminal 10-3.

[0081] observe Figure 3a A first shell 10-5-1 with a quadrilateral frame shape can be seen. This first shell 10-5-1 (formed using a one-piece insert molding process) and... Figure 4a The second shell 10-5-2 (formed by secondary insert molding) described below together constitutes the shell 10-5.

[0082] Figure 3a The first shell 10-5-1 shown is generally formed as a quadrilateral frame shape. Figure 3a In the connector 10, the portions of the second wall portion 10-5-W2 and the fourth wall portion 10-5-W4, which serve as sidewalls, where the signal terminals 10-3 are arranged, become slightly thicker in the width direction of the connector 10. Furthermore, the portions on both sides (X direction) of these portions become slightly thinner, while the first wall portion 10-5-W1 and the third wall portion 10-5-W3, which serve as endwalls, become slightly thicker. However, regardless of this difference in thickness, the first wall portion 10-5-W1, the second wall portion 10-5-W2, the third wall portion 10-5-W3, and the fourth wall portion 10-5-W4 are arranged according to… Figure 3a The shape shown is formed into one piece using a single insert molding process (i.e., one-time insert molding).

[0083] Furthermore, the signal terminal 10-3 has a mounting portion 10-3-M for mounting onto a substrate (not shown), and this mounting portion 10-3-M is arranged in a sawtooth shape. The power terminal 10-1 has a mounting portion 10-1-M1 for mounting onto a substrate (not shown).

[0084] in addition, Figure 3a The carrier C is shown only at a portion of the signal terminals 10-3, but this is only for illustration purposes. The carrier (not shown) may also be attached at other signal terminals 10-3 and power terminals 10-1.

[0085] Figure 3b Shown in Figure 2 A bottom view of the first housing 10-5-1 formed by one-time insert molding at the power terminal 10-1 and signal terminal 10-3.

[0086] in other words, Figure 3b It can also be with Figure 3a The top view corresponds to the bottom view.

[0087] Figure 3a The points illustrated in the (top view) also apply. Figure 3b (Top view)

[0088] like Figure 3b As shown, the power terminal 10-1 has a mounting portion 10-1-M1, and may also have an additional mounting portion 10-1-M2. When there is no need to distinguish these mounting portions, they may be referred to as mounting portions 10-1-M1 and 10-1-M2 (of the power terminal 10-1), and when distinction is required, they may be referred to as first mounting portion 10-1-M1 and second mounting portion 10-1-M2 (of the power terminal 10-1).

[0089] Figure 4a It is shown in Figure 3a A top view of the shape after a second insert molding is performed in the state of (i.e., the state of completing one insert molding).

[0090] It can be known Figure 4a and Figure 3a Compared to the shell, it becomes larger by 10⁻⁵. That is, it can be seen that in... Figure 3a It is in a state where only the first shell 10-5-1 of the shell 10-5 is formed, but... Figure 4a It is in a state where a second shell 10-5-2 is additionally formed.

[0091] It is not limited to this, but the second housing includes a base 10-5-B and a connecting part 10-5-C, etc.

[0092] In the state of having a first housing 10-5-1 formed by one-time insert molding ( Figure 3a When a second shell is made by performing secondary insert molding (10-5-2), the following result can be obtained: Figure 4a The shape shown.

[0093] Additionally, in Figure 4a When the carrier C is cut, the following can be obtained: Figure 1 The plug connector 10 is shown. As described above, in Figures 2 to 4b In order to simplify the diagram, not all carriers C are shown. There may be carriers that are not shown (i.e., some carriers are omitted).

[0094] According to this utility model, the following effects are achieved: the housing 10-5 is divided into multiple parts (not limited to this, but preferably into a first housing 10-5-1 and a second housing 10-5-2), and the connector 10 is not made into a complex shape (and / or a very small shape) by one-time molding. Since it can be made into a first housing 10-5-1 in the shape of an integral quadrilateral frame formed by one-time insert molding and a second housing 10-5-2 formed by subsequent secondary insert molding, the manufacturing complexity is reduced. Furthermore, even more complex structures (or smaller structures) than those currently available can be handled more easily during manufacturing.

[0095] Furthermore, as a comparative example not shown, assuming that only two sidewalls are formed using a single insert molding (single injection molding) (excluding the two end walls), it can also be assumed that the overall shape of the housing is formed using a secondary insert molding (secondary injection molding). However, for this comparative example not shown, the final overall shape may look similar to that of the present invention, but due to the difference in strength of the basic primary injection molded part (the quadrilateral frame shape of the present invention and the two separate strip (wall) shapes of the comparative example not shown), even if the combined secondary injection molded parts have similar shapes, there may be a fundamental difference in strength. In particular, from the viewpoint that the position of the joint between the primary and secondary injection molded parts also has a significant impact on strength, the connector 10 of the structure of the present invention is also superior in strength compared to the comparative example not shown.

[0096] Furthermore, instead of manufacturing a connector 10 in a single molding process that produces a complex shape (and / or a very small shape), it is divided into a first housing 10-5-1 and a second housing 10-5-2. Through the structure of fixing portions (not shown; e.g., protrusions and depressions) between these housings 10-5-1 and 10-5-2, the additional molded part (secondary injection molded part), i.e., the second housing 10-5-2, is firmly bonded to the primary injection molded part, i.e., the first housing 10-5-1, thereby manufacturing a connector 10 with high overall strength. That is, although not shown, it is preferable that there are protrusions and depressions between the first housing 10-5-1 and the second housing 10-5-2 as fixing portions. In this case, the mold material of the second housing 10-5-2 is filled and enclosed or filled in the protrusions and depressions of the first housing 10-5-1, and after the mold material solidifies, it achieves a firm connection between them.

[0097] It is known that each component is point-symmetrical with respect to the center point of connector 10, which is advantageous for manufacturing. However, this point-symmetric structure is only one example of its advantages and is not limited to it. When connector 10 is point-symmetrical as a whole, it has good effects on ease of manufacturing and on balancing forces when using the product after manufacturing.

[0098] In addition, multiple signal terminals 10-3 are arranged in a sawtooth shape. Since the arrangement is different, signal terminals 10-3 of the same shape can be made for use, thus increasing the manufacturing efficiency.

[0099] Figure 4b It is aimed at Figure 4a The bottom view of a (top view).

[0100] Figure 4a The points illustrated in the (top view) also apply. Figure 4b (Top view)

[0101] For the bottom view Figure 3b (After one-time insert molding) and Figure 4b (After secondary insert molding) Compared with, it can be seen that Figure 3b Compared to the case where only the first shell 10-5-1 exists as shell 10-5, Figure 4b Not only does it form a first shell 10-5-1, but it also forms a second shell 10-5-2 as shell 10-5.

[0102] It can be known that in Figure 3b A portion of the first housing 10-5-1 seen in the image (e.g., the corners where the four walls intersect and a portion of the signal terminals 10-3 facing each other in the width direction of the connector 10, etc.) is in Figure 4b It can also be seen in the middle, but Figure 3b Many parts seen in Figure 4b The middle part is covered by the second shell 10-5-2.

[0103] As described above, the housing 10-5 includes a first housing 10-5-1 and a second housing 10-5-2. Furthermore, the second housing 10-5-2 includes a base 10-5-B (bottom surface), a connecting portion 10-5-C, and a skirt portion 10-5-SK.

[0104] The skirt portion 10-5-SK, as part of the second housing 10-5-2, is a portion that protrudes outward (outward in the width direction of the connector 10) to be in close contact with the outer side (outward in the width direction of the connector 10) of the second wall portion 10-5-W2 and the fourth wall portion 10-5-W4.

[0105] The base 10-5-B (bottom wall) connects the second wall portion 10-5-W2 and the fourth wall portion 10-5-W4 to each other. Furthermore, it is preferable that the base 10-5-B is also additionally formed close to the underside of the first wall portion 10-5-W1 and the third wall portion 10-5-W3. However, it is not limited to this, but... Figure 4b In the example, the base 10-5-B can be considered as connecting all the first wall portion 10-5-W1, the second wall portion 10-5-W2, the third wall portion 10-5-W3, and the fourth wall portion 10-5-W4.

[0106] Figure 5a It shows from Figure 4a A top view of the first shell, hypothetically removed.

[0107] Figure 3a This is the shape after the first shell 10-5-1 is formed using a single insert molding process. Figure 4a Is Figure 3a Based on the existing condition, a second insert molding process is performed to form an additional second shell 10-5-2, and the first shell 10-5-1 and the second shell 10-5-2 are integrated as described in the explanation. In this case, it is not necessarily the case, but the degree of integration can be further improved by utilizing the unevenness between the first shell 10-5-1 and the second shell 10-5-2.

[0108] Figure 5a Showing from Figure 4a The diagram depicts a second shell 10-5-2 formed by removing the first shell 10-5-1 (without the first shell 10-5-1). This is a conceptual illustration to aid in understanding the structure. It can be understood that, in reality, since the second shell 10-5-2 is formed after the first shell 10-5-1, it is impossible for a structure like the one shown above to exist. Figure 5a Generally, there is no first shell 10-5-1 but there is a second shell 10-5-2.

[0109] Figure 5b It is aimed at Figure 5a The bottom view of a (top view).

[0110] Figure 5a The points illustrated in the (top view) also apply. Figure 5b (Top view)

[0111] Figure 5b From Figure 4a The diagram shows the first housing 10-5-1 being hypothetically removed, and the power terminal 10-1, signal terminal 10-3, and second housing 10-5-2 can be identified.

[0112] Furthermore, it can be confirmed that the second housing 10-5-2 includes a base 10-5-B, a connecting portion 10-5-C, and a skirt 10-5-SK.

[0113] The illustration shows the second housing 10-5-2, including the base 10-5-B, the connecting portion 10-5-C, and the skirt 10-5-SK. Figure 4b It is the same, but... Figure 5b The omission of the first housing 10-5-1 in the diagram allows for a clearer understanding of the shapes of the various parts of the second housing 10-5-2. This is not limited to this, but for example, whether... Figure 5b In the aspect where no second housing is formed at the four corner portions where the four wall portions 10-5-W1, 10-5-W2, 10-5-W3, and 10-5-W4 intersect, or in the aspect where the skirt portion 10-5-SK protrudes significantly outward in the width direction of the connector 10 and conversely, almost no second housing 10-5-2 is formed on its inner side in the width direction (compared to the first housing 10-5-1), through... Figure 4b The comparisons make it easier to understand.

[0114] Figure 6a Will Figure 1 A portion of it is enlarged and shown.

[0115] The power terminal 10-1, signal terminal 10-3, first housing 10-5-1, and second housing 10-5-2 can be identified.

[0116] Multiple signal terminals 10-3 are arranged adjacently, and their directions are alternately changed so that the mounting portions 10-3-M of the signal terminals 10-3 are not adjacent to each other. That is, the state is repeated where the mounting portion 10-3-M of one signal terminal 10-3 faces inward in the width direction of the connector 10, while the mounting portion 10-3-M of another signal terminal 10-3 adjacent to it faces outward in the width direction of the connector 10 (i.e., an alternating arrangement). In other words, it can be seen that the non-mounting portion 10-3-NM, mounting portion 10-3-M, non-mounting portion 10-3-NM, mounting portion 10-3-M... continues in the length direction of the connector 10. Here, the non-mounting portion 10-3-NM refers to the portion that is not mounted to the substrate (not shown), and is a structure in which if one end of the signal terminal 10-3 is the mounting portion 10-3-M, the other end is the non-mounting portion 10-3-NM.

[0117] Focus here on the square portion indicated by the dashed line and... Figure 6b The following description is provided.

[0118] Figure 6b yes Figure 6a An enlarged view of the square section represented by the dashed lines.

[0119] Figure 6bThe diagram shows the skirt 10-5-SK, which is part of the second housing 10-5-2, and two signal terminals 10-3.

[0120] Can be seen Figure 6b The mounting portion 10-3-M of the signal terminal 10-3 on the right side is exposed to the outside of the connector 10 in the width direction, but the other signal terminal 10-3 on the left side (not a mounting portion, also referred to as a "non-mounting portion" for convenience) is not exposed to the outside of the connector 10 in the width direction, and the skirt portion 10-5-SK blocks (covers) its end.

[0121] At this time, the end (section) of the signal terminal 10-3 covered by the skirt 10-5-SK is... Figures 2 to 4b The diagram shows a cross-section of signal terminal 10-3 without the attached carrier C. However, strictly speaking, in reality, the carrier C is necessary because the position of signal terminal 10-3 must be determined. Figure 2 , Figure 3a , Figure 3b In this process, the carrier (C) is attached to all signal terminals (10-3), and the resulting shape after being cut one by one is as follows. Figure 4a , Figure 4b Generally speaking, in Figure 2 , Figure 3a , Figure 3b In practice, all signal terminals 10-3 should be in a state where the carrier C is attached, and the process of cutting a portion of the carrier (not shown) there is obtained. Figure 3a , Figure 3b The shape is then revealed (exposing the outer cross-section of signal terminal 10-3), followed by secondary insert molding to obtain the actual shape. Figure 4a , Figure 4b The appearance shown (the outer cross-section is covered), and in Figure 4a , Figure 4b When additionally cutting the carrier C, it is obtained Figure 1 Connector 10. For reference, Figure 5a , Figure 5b It is a hypothetical conceptual drawing that could not exist in the actual manufacturing process.

[0122] As in Figure 6a This can be confirmed from the overall appearance. Figure 6b The mounting portion 10-3-M of the signal terminal 10-3 on the right side is located outside the connector 10 in the width direction, and Figure 6b The mounting portion of the signal terminal 10-3 on the left side is located inside the connector 10 in the width direction. At this time, the outer portion of the signal terminal 10-3 on the left side in the width direction of the connector 10 (i.e., Figure 6bThe portion seen in the image does not necessarily need to have its ends exposed to the outside of the connector 10 in the width direction. This is because if exposed, it might cause issues with... Figure 6b Problems such as unnecessary electrical connection (short circuit) at the mounting part of the other signal terminal 10-3 on the right side. The following addresses this issue. Figure 7a , Figure 7b The comparative examples will be described separately.

[0123] For reference only. Figure 6b The reason for exposing the upper surface of the non-mounting portion 10-3-NM is to facilitate probe inspection. Furthermore, although not mandatory, it is preferable that there be a step difference of height d on the upper surface of the non-mounting portion 10-3-NM and the upper surface of the skirt portion 10-5-SK because when a probe (not shown) approaches and contacts from above for inspection, if the surfaces (of the same height) are the same, it may be difficult to distinguish and / or contact either the metal part or the mold part.

[0124] Figure 7a , Figure 7b Is with Figure 6a , Figure 6b Comparative examples comparing the embodiments.

[0125] exist Figure 7a In the comparative example, it can be seen that the signal terminals are arranged in a sawtooth pattern, and a portion of them are enlarged and... Figure 7b As shown in the image.

[0126] right Figure 6b (An embodiment of this utility model) and Figure 7b By comparison, it can be seen that there are differences in whether the non-mounted portion of the signal terminal on the left side is exposed to the outside of the connector in the width direction in each figure. For example... Figure 7b As shown, the end E1 (metal exposed part or copper exposed part) of the signal terminal on the left is exposed to the outside of the connector in the width direction. Since it is close to the end E2 (mounting part) of the signal terminal on the right, there is a risk of solder bridging or dendrite formation in a high humidity environment.

[0127] therefore, Figure 7a , Figure 7b Comparative examples have a disadvantageous effect in this viewpoint; on the contrary... Figure 6a , Figure 6b In the embodiments of this utility model, the outer side of the connector 10 in the width direction of the corresponding non-mounting part 10-3-NM is filled with resin (i.e., covered by a part of the skirt 10-5-SK), so that undesirable short circuit conditions and / or dendrite problems caused by solder bridging will not occur.

[0128] Figures 1 to 6b The text describes a scenario where a first housing 10-5-1 and a second housing 10-5-2 are formed separately with the plug connector 10 as the center (i.e., the first housing 10-5-1 in the shape of a quadrilateral frame is first formed into a single piece using a one-time insert molding process, and the second housing 10-5-2 is formed using a two-time insert molding process).

[0129] However, this is merely one example and is not limited to the plug connector 10. That is, for a socket connector (not shown) (also called a receptacle connector) that is coupled to the plug connector 10, a first housing forming a quadrilateral frame shape with approximately four walls can be formed using a single insert molding process, and a second housing can be formed around its periphery using a secondary insert molding process. It is not limited to this, but the second housing may also include a portion of the central island portion.

[0130] That is, the above-described matters for plug connector 10 may also be applied to socket connectors (not shown) (socket connectors) to the extent that they are not contradictory in nature.

[0131] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the described embodiments and can be manufactured in various different forms. Furthermore, those skilled in the art will understand that the present invention can be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not as limiting.

Claims

1. An electrical connector, which is mounted to a substrate and engages with a mating connector, characterized in that, include: A first housing includes: a first wall extending in the width direction of the electrical connector; a second wall connected to one end of the first wall and extending in the length direction of the electrical connector; a third wall connected to one end of the second wall and extending in the width direction of the electrical connector; and a fourth wall connected to one end of the third wall and extending in the length direction of the electrical connector, and connected to the other end of the first wall. Power terminals are arranged in the first wall portion and the third wall portion; Signal terminals are arranged in the second wall portion and the fourth wall portion; and The second housing includes a bottom wall that connects the second wall portion to the fourth wall portion. The first housing is formed using a single insert molding process, and the second housing is formed using a double insert molding process.

2. The electrical connector according to claim 1, characterized in that, The bottom wall is also formed closely on the lower side of the first wall portion and the third wall portion.

3. The electrical connector according to any one of claims 1 to 2, characterized in that, The signal terminals are arranged adjacent to each other and their orientations are alternated so that the mounting portions of the signal terminals are not adjacent to each other.

4. An electrical connector, which is mounted to a substrate and engages with a mating connector, characterized in that... include: A first housing includes: a first wall extending in the width direction of the electrical connector; a second wall connected to one end of the first wall and extending in the length direction of the electrical connector; a third wall connected to one end of the second wall and extending in the width direction of the electrical connector; and a fourth wall connected to one end of the third wall and extending in the length direction of the electrical connector, and connected to the other end of the first wall. Power terminals are arranged in the first wall portion and the third wall portion; Signal terminals are arranged in the second wall portion and the fourth wall portion; and The second housing has a skirt formed closely around the outer sides of the second and fourth walls in the width direction of the electrical connector. The first housing is formed using a single insert molding process, and the second housing is formed using a double insert molding process.

5. The electrical connector according to claim 4, characterized in that, The signal terminals are arranged adjacent to each other and their directions are alternated so that the mounting portions of the signal terminals are not adjacent to each other.

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