KR102644055B1 - Electric connector - Google Patents

Abstract

An electrical connector 10 is mounted on a board and coupled to a mating connector 20.
The electrical connector 10 includes a mold portion 10-5; Power terminal (10-1); and a plurality of terminals 10-3.
The power terminal 10-1 includes a lower part (G); At the lower end, it has an outer extension portion (E3) extending upward from the outer side of the electrical connector in the longitudinal direction,
The mold portion 10-5, at the lower portion G, is in contact with the lower portion on one side in the width direction of the electrical connector and on the outer side in the longitudinal direction of the electrical connector, and has a step difference from the upper surface of the lower portion and is raised high. a second protrusion (F2) formed; It has a third protrusion F3 that is in contact with the lower end on the other side in the width direction of the electrical connector and on the outer side in the longitudinal direction of the electrical connector and is formed high and has a step difference from the upper surface of the lower end.

Description

Electrical connector {ELECTRIC CONNECTOR}

The present invention relates to electrical connectors. More specifically, the present invention relates to the level difference between the upper surface of the lower end of the power terminal and the bottom of the housing.

Generally, when boards are interconnected, two connectors are used that are connected to each board by a method such as soldering, 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. Socket connectors are also called receptacle connectors. These plug connectors and socket connectors can be formed by placing terminals on mold parts. The plug connector and the socket connector may be coupled to each other to form an electrical connector assembly.

In accordance with the trend toward miniaturization of electronic devices, connectors are becoming smaller and shorter. However, there are some limitations in miniaturizing and lowering the profile of the connector by reducing the pitch or making the components smaller.

On the other hand, as connectors become smaller, securing their durability has become more difficult than before. This is because the member is small, so it is easy to break or deform even with a smaller force than before.

Additionally, as a type of the above deformation, plastic deformation may occur if the metal terminal continues to be maintained in a specific shape during the process of connecting the connectors or while the connectors are connected. Plastic deformation is the opposite of elastic deformation, and refers to a state in which a material maintains deformation and does not return to its original shape even when the load applied to the material is removed. All materials generally have elasticity, but when stress occurs, their shape deforms. In connector terminals that are becoming increasingly finer, there is also a need to prevent such plastic deformation.

In addition, there are cases where the resin mold (housing) of the connector is manufactured by insert molding. In this case, the flowability of the resin determines whether the housing is molded properly, so there is a need to improve the flowability of the resin. .

The technical problem to be solved by the present invention is to prevent plastic deformation of terminals of electrical connectors.

Additionally, in insert molding, the flowability of the resin is improved.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to the present invention, an electrical connector is mounted on a board and coupled to a mating connector,

a base, a first wall portion protruding from a top surface of the base, a second wall portion protruding from a top surface of the base and intersecting the first wall portion, and a second wall portion protruding from the top surface of the base and intersecting the second wall portion, the first wall portion a mold portion including a third wall portion facing the base, a fourth wall portion protruding from an upper surface of the base, intersecting the first and third wall portions, and facing the second wall portion;

a power terminal installed at least on the first wall; and

A plurality of terminals installed at least on the second wall portion and the fourth wall portion.

Includes,

The power terminal includes a lower part; At the lower end, there is a third extension portion extending upward from the outer side of the electrical connector in the longitudinal direction,

The mold portion includes, at the lower portion, a second protrusion formed high and having a step difference from the upper surface of the lower portion while contacting the lower portion on one side in the width direction of the electrical connector and an outer side in the longitudinal direction of the electrical connector; An electrical connector is provided having a third protrusion formed high and in contact with the lower end on the other side in the width direction of the electrical connector and on the outer side in the longitudinal direction of the electrical connector and having a step difference from the upper surface of the lower end.

Preferably, the mold part further has a first protrusion formed high and in contact with the lower end on the inside of the longitudinal direction of the electric connector and having a step difference from the upper surface of the lower end.

Preferably, the mold portion further includes a flat portion extending outward from the first protrusion in the longitudinal direction of the electrical connector and formed to have no level difference with the upper surface of the lower end of the power terminal.

Preferably, when the electrical connector is fitted with the mating connector, the second protrusion and the third protrusion contact the power terminal of the mating connector or the mold portion of the mating connector, thereby contacting the power terminal of the electric connector. The upper surface of the lower part does not contact the power terminal of the counterpart connector and a gap is created.

Preferably, the power terminal includes a first extension portion extending upward from one side in the width direction of the electrical connector at the lower end; At the lower end, the electrical connector further has a second extension extending upward from the other side in the width direction of the electrical connector, wherein when the electrical connector and the mating connector are coupled, the electrical connector has an end of the first extension and When the end of the second extension is bent outward in the width direction of the electrical connector, it further includes an escape portion that is a space that accommodates the end of the first extension and the end of the second extension.

Preferably, a portion of the power terminal of the electrical connector, excluding the upper surface of the lower end, contacts the mold portion of the mating connector or the power terminal of the mating connector.

Preferably, a portion of the second protrusion and the third protrusion that contact the lower end of the power terminal of the electrical connector has a curved shape.

Preferably, the portion of the same plane portion that contacts the lower end of the power terminal of the electrical connector has a curved shape.

According to the present invention, plastic deformation of the terminals of an electrical connector is prevented.

Additionally, in insert molding, the flowability of the resin is improved.

The effects according to the present invention are not limited to the contents exemplified above, and further various effects are included in the present specification.

1 is a diagram showing an example of a plug connector among electrical connectors according to the present invention.
Figure 2 is a diagram showing a portion of Figure 1.
FIG. 3 is a view showing a portion of FIG. 2 in a more enlarged form.
FIG. 4 is a diagram omitting the power terminal 10-1 in FIG. 3.
Figure 5 is a diagram showing a state in which the plug connector 10 and the receptacle connector 20, which is a mating connector, are coupled.
FIG. 6 is a diagram showing a state cut along line BB shown in FIG. 3.
Figure 7 is a diagram showing a socket connector (20; receptacle connector) according to the present invention.
FIG. 8 is a view showing the housing 20-5 in FIG. 7 virtually removed.
Figure 9 is a perspective view of the power terminal 20-1 of the socket connector 20.
FIG. 10 is an enlarged view of a portion of FIG. 7, with the housing 20-5 added to FIG. 9.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

1 is a diagram showing an example of a plug connector among electrical connectors according to the present invention.

1 shows, as an example, a power terminal 10-1, a signal terminal 10-3, and a housing 10-5 (mold portion) of the plug connector 10.

The power terminal 10-1 is a metal structure to supplement the strength of the connector 10, and can input and output power electrical signals. The signal terminal 10-3 can input and output data signals.

However, this is an example and is not limited thereto. For example, the power terminal 10-1 may be manufactured separately as a separate metal fitting and power terminal.

Also, for example, the signal terminal 10-3 may be composed of four PINs that allow a current of 0.3A, or may be a terminal that allows a current exceeding 0.3A, for example, up to 5A to function as a power terminal. there is. However, the fact that the number of PINs is 4 is just an example.

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

The housing 10-5 (mold portion) of the plug connector 10 is preferably made of plastic, for example, liquid crystal polymer (LCP). Additionally, the housing 10-5 may be formed of an insulator containing resin, epoxy, etc., but is not limited thereto. The power terminal 10-1 and the signal terminal 10-3 of the plug connector 10 are preferably made of metal, but are not limited thereto, but may be, for example, copper, or gold-plated copper alloy (nickel-under It may be a layer).

Figure 2 is a diagram showing a portion of Figure 1.

2 shows a first protrusion F1, a second protrusion F2, a third protrusion F3, and a coplanar portion F4, which are all part of the housing 10-5.

Additionally, the lower part G is shown in FIG. 2, which is part of the power terminal 10-1.

FIG. 3 is a view showing a portion of FIG. 2 in a more enlarged form.

In FIG. 3, a first protrusion (F1), a second protrusion (F2), a third protrusion (F3), and a same plane portion (F4) are shown, which are the same as in FIG. 2, but are all of the housing 10-5. It is also marked as F1 (10-5), F2 (10-5), F3 (10-5), and F4 (10-5) in the sense of being part of it. Hereinafter, it will be seen that the first protrusion F1 and the first protrusion F1 (10-5) refer to the same object.

Additionally, the lower part G is shown in FIG. 3, which is the same as FIG. 2, but is also indicated as G(10-1) in the sense that it is a part of the power terminal 10-1. Hereinafter, it will be seen that the lower part (G) and the lower part (G(10-1)) refer to the same object.

The first protrusion (F1), the second protrusion (F2), and the third protrusion (F3) constitute the bottom of the housing 10-5, and although they are not essential, for example, they have the same height. The same height can be considered based on the Z axis in the drawing.

Meanwhile, the same plane portion F4 is formed lower than the first protrusion F1. And the lower part G of the power terminal 10-1 is formed at the same height as the same plane part F4. That is, the lower part (G) and the same plane part (F4) are at the same height, and the first protrusion (F1), the second protrusion (F2), and the third protrusion (F3) are at the same height as the lower part (G) and the same plane part (F4). It is formed higher.

Typically, (i) the lower end G and the same plane part F4 are at the same height, and (ii) the first protrusion F1, the second protrusion F2, and the third protrusion F3 are at the lower end G. ) and the same plane portion (F4), and (iii) the first protrusion (F1), the second protrusion (F2), and the third protrusion (F3) are preferably the same height as each other. However, it is recommended that the condition (iii) above be met, but it is not essential. For example, only the second protrusion (F2) and the third protrusion (F3) are higher than the lower part (G; to be exact, the upper surface of the lower part) of the power terminal 10-1, and the first protrusion (F1) is the same as the lower part (G). A higher configuration is also possible.

Specifically, at the lower end G, the housing 10-5 is in contact with the lower end on one side in the width direction of the electrical connector 10 and on the outer side in the longitudinal direction of the electrical connector 10. a second protrusion (F2) formed high and having a step difference from the upper surface of (G); A third protrusion ( It has F3).

The reason for configuring it as above (i) to (iii) (or (i), (ii)) is to avoid direct contact with the upper surface of the power terminal of the counterpart connector 20, as described later with reference to FIG. 5, etc. This is to form a gap.

Meanwhile, FIG. 3 shows a first extension part E1 and a second extension part E2, which are terminal movable pieces of the power terminal 10-1. Additionally, the third extension E3 (outer extension) is shown extending toward both ends of the power terminal 10-1 in the longitudinal direction of the connector.

Specifically, the power terminal 10-1 includes a lower part (G); a first extension portion (E1) extending upward from one side in the width direction of the electrical connector (10) at the lower portion (G); a second extension portion (E2) extending upward from the other side in the width direction of the electrical connector (10) at the lower end portion (G); The lower end portion G has a third extension portion E3 extending upward from the outer side of the electrical connector 10 in the longitudinal direction.

FIG. 4 is a diagram omitting the power terminal 10-1 in FIG. 3.

In order to more clearly illustrate what was explained in FIG. 3, the power terminal 10-1 is omitted in FIG. 4. The lower part (G), which is part of the power terminal 10-1, is naturally omitted.

Although shown in FIG. 3 , the level difference between the first protrusion F1 and the same plane portion F4 can be confirmed in FIG. 4 as well. Based on the Z-axis direction, the first protrusion F1 is higher and the same plane portion F4 is lower.

Figure 5 is a diagram showing a state in which the plug connector 10 and the receptacle connector 20, which is a mating connector, are coupled.

FIG. 5 shows a view cut along line AA shown in FIG. 3.

Unlike FIGS. 1 to 4, FIG. 5 shows a state in which the plug connector 10 is flipped up and down in the Z-axis direction and then coupled to the counterpart connector 20 (receptacle connector (socket connector)).

In FIG. 5, the lower end (G) of the power terminal 10-1 of the plug connector 10 faces the upper end of the power terminal 20-1 of the mating connector 20, but is spaced apart at a distance D. There is. This gap D is such that (although not shown in FIG. 5 itself) the protrusions F1, F2, and F3 of the housing 10-5 in FIGS. 3 and 4 are connected to the power terminal 20- of the mating connector 20. 1) and/or because it touches the housing (20-5). That is, the protrusions F1, F2, and F3 of the housing 10-5 of the plug connector 10 contact the power terminal 20-1 and/or the housing 20-5 of the mating connector 20, The lower end G of the power terminal 10-1 of the plug connector 10 is lower (in the -Z-axis direction in FIGS. 3 and 4) than the protrusions F1, F2, and F3, and the plug connector 10 is positioned vertically and downwardly. Since it is inverted and formed further in the +Z axis direction in FIG. 5, the gap D is created.

In other words, this gap (D) is not the gap that may inevitably occur after connecting the connectors, but the 'protruding portions (F1, F2, F3)', 'coplanar portion (F4), and lower portion (G)' It is a gap that occurs because a step (difference in height) is intentionally formed between the.

For reference, in FIG. 5, the power terminal 10-1 of the plug connector 10 and a portion of the power terminal 20-1 of the socket connector 20 are shown overlapped, but this is for convenience of illustration. , in reality, the first extension portion E1 and the second extension portion E2, which are ring-shaped terminal movable pieces of the power terminal 10-1 in FIG. 5, will not overlap, but will be bent laterally in the width direction.

Meanwhile, in Figure 5, two escape portions (S) indicated by S are shown. This escape portion S is a space for accommodating the ends of the extension portions E1 and E2 by moving them when the extension portions E1 and E2 are bent outward in the width direction. In FIG. 5, the escape portion S faces a portion of the housing 10-5 (mold portion) on the outer side in the width direction, and the first extension portion E1 or the second extension portion on the inner side in the width direction. (E2) is avoided.

FIG. 6 is a diagram showing a state cut along line BB shown in FIG. 3.

Unlike Figures 1 to 4, Figure 6 also shows a state in which the plug connector 10 is flipped up and down in the Z-axis direction and then coupled to the mating connector 20 (receptacle connector (socket connector)). This is the same as the case in FIG. 5.

In FIG. 6, the lower end (G) of the power terminal 10-1 of the plug connector 10 faces the upper end of the power terminal 20-1 of the mating connector 20, but is spaced apart at a distance D. There is. This gap D is because the protrusions F1, F2, and F3 of the housing 10-5 contact the power terminal 20-1 of the mating connector 20 and/or the housing 20-5. That is, the protrusions F1, F2, and F3 of the housing 10-5 of the plug connector 10 contact the power terminal 20-1 and/or the housing 20-5 of the mating connector 20, The lower end G of the power terminal 10-1 of the plug connector 10 is lower (in the -Z-axis direction in FIGS. 3 and 4) than the protrusions F1, F2, and F3, and the plug connector 10 is positioned vertically and downwardly. In FIG. 6, which is inverted and combined, it is formed further in the +Z-axis direction, so the gap D is created.

In other words, this gap (D) is not the gap that may inevitably occur after connecting the connectors, but the 'protruding portions (F1, F2, F3)', 'coplanar portion (F4), and lower portion (G)' It is a gap that occurs because a step (difference in height) is intentionally formed between the.

Looking at FIGS. 3 to 6 comprehensively, there is a step between the lower part (G; to be exact, the upper surface of the lower part) of the power terminal 10-1 and the other surfaces (F1, F2, and F3) of the housing 10-5. Due to this step, when combined with the mating connector 20, a gap D is formed without direct contact with the upper surface of the power terminal 20-1. In addition, the part of the same plane part F4 that is in contact with the power terminal 10-1 is rounded to support it more closely with the power terminal 10-1 and prevent the power terminal 10-1 from being separated.

Through this gap D, plastic deformation of the power terminal 10-1 is prevented. In addition, plastic deformation of the power terminal 20-1 of the counterpart connector 20 may also be prevented.

It is preferable that all of the protrusions F1, F2, and F3 are higher than the lower end G, but an embodiment in which only the protrusions F2 and F3 are higher than the lower end G is also possible. Meanwhile, the same plane portion F4 is preferably at the same height as the lower end G (its upper surface) of the power terminal 10-1.

In this case, it has been explained that a gap D is generated when the plug connector 10 is coupled (fitted) to the mating connector 20.

The lower part (G) of the power terminal 10-1 of the plug connector 10 itself does not contact the power terminal 20-1 of the mating connector 20, but the other portion of the power terminal 10-1 is located at that location. Accordingly, it touches the housing 20-1 and/or the power terminal 20-1 of the counterpart connector 20. Likewise, the upper surface of the power terminal 20-1 of the counterpart connector 20 touches the housing 10-5 of the plug connector 10.

Also, it is preferable that the same plane portion F4, the second protrusion F2, and the third protrusion F3 are curved when viewed from above. This is for close support with the power terminal 10-1. For example, if it is a right angle rather than a curved shape, it may be prone to falling out due to poor adhesion.

Figure 7 is a diagram showing a socket connector (20; receptacle connector) according to the present invention.

From the perspective of the plug connector 10, the socket connector 20 becomes a mating connector. Of course, from the perspective of the socket connector 20, the plug connector 10 becomes a counterpart connector.

The socket connector 20 of FIG. 7 is fitted and combined with the plug connector 10 shown in FIG. 1. Of course, for such a combination, the plug connector 10 of FIG. 1 must be flipped up and down to fit into the socket connector 20 of FIG. 7, or the socket connector 20 of FIG. 7 must be flipped up and down to fit into the plug connector of FIG. 1 ( It fits into 10).

In Figure 7, the power terminal 20-1, signal terminal 20-3, and housing 20-5 (mold portion) of the socket connector 20 are shown as an example.

The power terminal 20-1 may be a metal structure to supplement the strength of the connector 20, and may input and output power electrical signals. Of course, it is also possible to have the power terminal 20-1 separated into separate metal fittings and a power terminal. The signal terminal 20-3 can input and output data signals. These are respectively connected to the power terminal 10-1 and the signal terminal 10-3 of the plug connector 10 in FIG. 1.

However, the formation and arrangement shown in FIG. 7 are examples and are not limited thereto. For example, a separate metal fitting 20-1 from the power terminal 20-1 may be made.

Also, for example, the signal terminal 20-3 may be composed of four PINs that allow a current of 0.3A, or may be a terminal that allows a current exceeding 0.3A, for example, up to 5A to function as a power terminal. there is. However, the fact that the number of PINs is 4 is just an example.

The housing 20-5 has a base. The housing 20-5 has a wall portion protruding from the upper surface of the base, and a power terminal 20-1, a signal terminal 20-3, etc. are formed on the wall portion. Additionally, the housing 20-5 has a center island portion (20-5I) protruding from the upper surface of the base. This central island portion 20-5I, which is part of the housing 20-5, is partially covered by the power terminal 20-1.

The housing (20-5; mold portion) of the socket connector 20 is preferably made of plastic, for example, LCP (Liquid Crystal Polymer). Additionally, the housing 20-5 may be formed of an insulator containing resin, epoxy, etc., but is not limited thereto. The power terminal 20-1 and the signal terminal 20-3 of the socket connector 20 are preferably made of metal, but are not limited thereto, and may be copper, for example, or gold-plated copper alloy (nickel-under It may be a layer).

The power terminal 20-1 may be composed of separate metal fittings and a power terminal, and the metal fittings may be made of the same or similar material as the power terminal 20-1 and the signal terminal 20-3.

FIG. 8 is a view showing the housing 20-5 in FIG. 7 virtually removed.

By removing the housing 20-5, the structure and arrangement relationship of the metal power terminal 20-1 and signal terminal 20-3 will be more clear.

In particular, the power terminal 20-1 has an extension portion 20-1E, a portion of which extends in the longitudinal direction (X direction) of the connector 20, that forms part of the central island portion 20-5I (see FIG. 7). covering.

To the right of the extension portion 20-1E in the drawing, an additional extension portion for reinforcing strength when the connector 20 is long is shown.

Figure 9 is a perspective view of the power terminal 20-1 of the socket connector 20.

The power terminal 20-1 shown in FIG. 9 is formed by a deep drawing method.

Deep drawing processing, also called deep drawing processing, refers to the process of pressing the outer periphery of a plate inward using punches and dies in the press processing of a plate, and processing it into a product on a container with a seamless space bottom. During processing, compressive force may occur in the flange portion in the circumferential direction, which may cause deformation, so the material is processed while suppressing it with a deformation suppression plate. It is a processing method of forming seamless bowl-shaped or barrel-shaped products from iron or metal plates using dies and punches, and is widely used for small industrial parts such as electrical parts and large parts such as car bodies and aircraft bodies.

For example, if the power terminal 20-1 is made using a deep drawing method, the power terminal 20-1 can be made in the shape shown in FIG. 9 (e.g., having a smooth curved portion 20-1B).

However, if the deep drawing method is not applied and a straight plate is made only by cutting and bending, a shape such as the bent portion 20-1B cannot be created, and only a cut portion like the extension portion 20-1E shown in FIG. 9 is formed. It can only be made in a shape that exposes all of the bends and bends. (Of course, as shown in FIG. 8, the extension portion 20-1E is part of the power terminal 20-1, but is provided as an example for convenience of explanation. If the deep drawing method is not used, the power supply in FIG. 9 This means that the bent portions 20-1B on the right and left sides in the width direction of the terminal 20-1 cannot be rounded and must be cut like the extension portion 20-1E.) If the bent portion 20-1B is It can be easily seen that if it cannot be formed as in Figure 9 and has to be cut, the overall rigidity and elasticity of the power terminal 20-1 will be weakened.

However, when processing a metal plate using the deep drawing method, there are some limitations in making the resin housing 20-5 in the case of the electrical connector 20. That is, after making the power terminal 20-1, according to insert molding, the metal power terminal 20-1 and signal terminal 20-3 are placed in appropriate positions on the mold, and resin is poured and hardened. As a result, the resin becomes the housing 20-5, but if there are no or few incisions like the power terminal 20-1 made by deep drawing, there are restrictions on the inlet through which the resin can be injected. For example, if the bent portion 20-1B is an incision, unlike in FIG. 9, resin can be easily injected into the incision, but this is not the case in the structure shown in FIG. 9.

In order to solve this problem, the power terminal 20-1 of the electrical connector 20 according to the present invention has an open hole H formed in the center of the end wall of FIG. 9.

In Fig. 9, the power terminal 20-1 has three end wall portions when viewed broadly. A first end wall portion (20-1-W1) formed on an end side in the longitudinal direction of the connector 20, a second end wall portion (20-1-W2) formed on both end sides in the width direction of the connector 20, and 3 It is a single wall part (20-1-W3).

The first end wall portion 20-1-W1, the second end wall portion 20-1-W2, and the third end wall portion 20-1-W3 of the power terminal 20-1 are respectively shown in FIG. 10, which will be described later. corresponds to the positions of the first wall W1, the second wall W2, and the fourth wall W4 of the housing 20-5.

Among these, the open hole H is preferably formed in the first end wall portion 20-1-W1. And, of the first end wall portion 20-1-W1, it is preferably formed at the middle bottom (that is, the middle in the left-right direction (Y direction) and the bottom in the up-down direction (Z direction)). When formed at this position, when insert molding is performed using the power terminal 20-1 made by deep draw, resin is injected into the open hole (H), and the resin is spread to the left and right around the open hole. You can think of it spreading evenly laterally.

Even if the open hole (H) is in the first end wall portion (20-1-W1), if it is biased more to the right or left than the position shown in FIG. 9, the resin injected for insert molding (later, housing (20) There is a high possibility that the -5) will not be spread evenly.

Meanwhile, in FIG. 9, the open hole H is not formed in the second end wall portion 20-1-W2 and the third end wall portion 20-1-W3. This is because it is thought that if the open hole is in the second end wall portion (20-1-W2) and/or the third end wall portion (20-1-W3), it is difficult to evenly inject the resin symmetrically (with respect to the width direction).

FIG. 10 is an enlarged view of a portion of FIG. 7, with the housing 20-5 added to FIG. 9.

The results of insert molding for the power terminal 20-1 in FIG. 9 (and the signal terminal 20-3, not shown) are shown in FIG. 10.

After insert molding, the housing (20-5; resin mold) covers part of the open hole (H). This is because there is no need for the open hole H to remain open after the injection of the resin is completed. In addition, the overall strength of the housing 20-5 will increase if the relevant part is covered.

Although embodiments of the present invention have been described above with reference to the attached drawings, the present invention is not limited to the above embodiments and can be manufactured in various different forms, and can be manufactured in various forms by those skilled in the art. It will be understood by those who understand that the present invention can be implemented in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

10: plug connector
10-1: Power terminal
G: Lower part (upper surface)
E1: first extension
E2: second extension
E3: Third extension (outer extension)
10-3: Signal terminal
10-5: Housing (mold part)
F1: first protrusion
F2: second protrusion
F3: Third protrusion
F4: Coplanar
20: Receptacle connector (socket connector)
20-1: Power terminal
20-1E: Extension
20-3: Signal terminal
20-5: Housing (mold part)
20-5I: Central island
H: Open hole

Claims (8)

An electrical connector mounted on a board and combined with a mating connector,
a base, a first wall portion protruding from an upper surface of the base, a second wall portion protruding from an upper surface of the base and intersecting the first wall portion, and a second wall portion projecting from the upper surface of the base and intersecting the second wall portion, the first wall portion a mold portion including a third wall portion facing the base, a fourth wall portion protruding from an upper surface of the base, intersecting the first and third wall portions, and facing the second wall portion;
a power terminal installed at least on the first wall; and
A plurality of terminals installed at least on the second wall portion and the fourth wall portion.
Includes,
The power terminal includes a lower part; At the lower end, there is an outer extension extending upward from the outer side of the electrical connector in the longitudinal direction,
The mold portion includes, at the lower portion, a second protrusion formed high and having a step difference from the upper surface of the lower portion while contacting the lower portion on one side in the width direction of the electrical connector and an outer side in the longitudinal direction of the electrical connector; It has a third protrusion that contacts the lower end on the other side in the width direction of the electrical connector and on the outer side in the longitudinal direction of the electrical connector and is formed high and has a step difference from the upper surface of the lower end,
When the electrical connector is fitted with the mating connector, either or both of the second protrusion and the third protrusion come into contact with a power terminal of the mating connector or a mold portion of the mating connector,
An electrical connector, characterized in that the upper surface of the lower end of the power terminal of the electrical connector does not contact the power terminal of the counterpart connector, but leaves a gap. According to paragraph 1,
The mold part,
A first protrusion formed high and in contact with the lower end on the inside of the longitudinal direction of the electrical connector and having a step difference from the upper surface of the lower end.
An electrical connector further comprising: According to paragraph 2,
The mold part,
A flat portion extending from the first protrusion outward in the longitudinal direction of the electrical connector and formed to have no level difference with the upper surface of the lower end of the power terminal.
An electrical connector further comprising: delete An electrical connector mounted on a board and combined with a mating connector,
a base, a first wall portion protruding from a top surface of the base, a second wall portion protruding from a top surface of the base and intersecting the first wall portion, and a second wall portion protruding from the top surface of the base and intersecting the second wall portion, the first wall portion a mold portion including a third wall portion facing the base, a fourth wall portion protruding from an upper surface of the base, intersecting the first and third wall portions, and facing the second wall portion;
a power terminal installed at least on the first wall; and
A plurality of terminals installed at least on the second wall portion and the fourth wall portion.
Includes,
The power terminal includes a lower part; At the lower end, there is an outer extension portion extending upward from the outer side of the electrical connector in the longitudinal direction,
The mold portion includes, at the lower portion, a second protrusion formed high and having a step difference from the upper surface of the lower portion while contacting the lower portion on one side in the width direction of the electrical connector and an outer side in the longitudinal direction of the electrical connector; It has a third protrusion that is in contact with the lower end on the other side in the width direction of the electrical connector and on the outer side in the longitudinal direction of the electrical connector and is formed high and has a step difference from the upper surface of the lower end,
The power terminal includes a first extension portion extending upward from one side in the width direction of the electrical connector at the lower end; The lower end further has a second extension portion extending upward from the other side in the width direction of the electrical connector,
The electrical connector is,
In the case where the electrical connector and the mating connector are coupled, when the end of the first extension and the end of the second extension are bent outward in the width direction of the electrical connector, the end of the first extension and the end of the second extension are bent outward in the width direction of the electrical connector. The escape part is a space that accommodates the end of the extension.
An electrical connector further comprising: According to any one of claims 1 to 3 or 5,
An electrical connector, wherein a portion of the power terminal of the electrical connector, excluding the upper surface of the lower end, contacts a mold portion of the mating connector or a power terminal of the mating connector. According to any one of claims 1 to 3 or 5,
An electrical connector, wherein a portion of the second protrusion and the third protrusion that contact a lower end of a power terminal of the electrical connector has a curved shape. According to paragraph 3,
An electrical connector, wherein the portion of the same plane portion that contacts the lower end of the power terminal of the electrical connector has a curved shape.

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