JP2007317623A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide connectors of which contacts can be contacted certainly and improved in stability of electrical connection. <P>SOLUTION: A mating side connector 40 has a mating contact 50 including a contact section 51. An insertion side connector 20 has a projection 21 which is gone over by the contact section 51 when it is inserted, and a recess 22 in which the contact section 51 is put in. Width of the recess 22 is larger than that of the contact section 51 in the part where the contact section 51 contacts in advance when the connecter is inserted and gradually becomes smaller as it is inserted. The contact section 51 moves along the slope of the recess 22 gradually as the connector is inserted to be guided to an appropriate position to fit with the recess 22. As a result, two point contact is certainly performed, contact surface is contacted as it is scrapped by fitting movement, and stable electrical connection can be secured even if flux or contamination remains in the contact surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector, and more particularly to a fitting structure for a contact portion disposed in the connector.

  When an electrical connection is obtained by fitting a pair of connectors, it is important to make sure that the contact portions provided in each connector are in contact with each other. Therefore, a structure is generally used in which a contact portion is provided in which one contact portion protrudes toward the other contact portion, and this contact portion is brought into contact with the other contact portion. For example, Patent Document 1 below discloses a structure in which a contact point protruding in a mountain shape is formed on a contact piece of one connector, and the contact point is brought into contact with the electrode surface of the other connector.

  Moreover, in order to make contact of a contact part more reliable, the structure which provides the recessed part fitted to the said contact part in the other contact part is also used. This conventional connector will be described with reference to FIGS. FIG. 11 is a perspective view showing the structure of a pair of connectors, and FIG. 12 is a perspective view and a plan view showing the structure of the insertion side connector. FIG. 13 is a plan view schematically showing the positional relationship of the contact portion in the connector fitting operation, and FIG. 14 is a cross-sectional view schematically showing the state of the contact portion at the time of fitting.

  As shown in FIG. 11, the conventional connector includes one connector (insertion-side connector 60) and the other connector (mating-side connector 40), and the insertion-side connector 60 is formed with an insertion-side contact portion 70. The mating connector 40 is formed with a mating contact portion 50. In the vicinity of the distal end portion of the mating contact portion 50, a contact portion 51 that protrudes toward the insertion side contact portion 70 is formed. As shown in FIG. 12, the insertion-side contact portion 70 has a protrusion 71 for generating a feeling of fitting of a pair of connectors and a contact portion 51 of the mating contact portion 50. A rectangular recess 72 is formed. When the insertion-side connector 60 is inserted into the mating connector 40, the contact portion 51 gets over the protrusion 71 and then fits into the recess 72 to electrically connect the insertion-side contact portion 70 and the mating contact portion 50. Is secured.

Japanese Unexamined Patent Publication No. 2003-100309 (page 4-5, FIG. 7)

  However, in the connector having the contact portion 51, the protrusion 71, and the quadrangular recess 72 as described above, when the contact portion 51 gets over the protrusion 71, if the position is shifted without being successfully overcome, The contact portion 51 cannot be fitted into the recess 72, and a contact failure may occur. For example, as shown in FIG. 13, when the contact part 51 gets over the protrusion 71, the insertion-side contact part 70 and the counterpart contact part 50 may be laterally displaced from each other (FIG. 13A). If the insertion side contact portion 70 is further pushed in in this state, the contact portion 51 rides on the edge of the recess 72 (see FIG. 13B), and the contact portion 51 is locked without being fitted into the recess 72. (See FIG. 13 (c)).

  Thus, since the conventional connector forms the rectangular recessed part 72 in the insertion side contact part 70, the contact part 51 of the other party contact part 50 does not get over the protrusion part 71 of the insertion side contact part 70 well. If it has escaped, it cannot be fitted into the recess 72 (see FIG. 14 (a)), or even if the contact portion 51 has successfully overcome the protrusion 71, due to manufacturing variations, There is a problem that the effect of the two-point contact, which is the original purpose, cannot be exhibited, such as contact with only one side of the recess 72 (see FIG. 14B).

  Further, in the conventional connector structure, since the contact position of the contact portion 51 does not fluctuate little, flux scattered during reflow soldering or foreign matter attached during work remains on the contact surface between the contact portion 51 and the recess 72. In such a case, there is a problem in that it is difficult to scrape off flux and foreign matter, and the stability of electrical connection may be impaired.

  The present invention has been made in view of the above problems, and a first object of the present invention is to provide a connector capable of reliably contacting a contact portion.

  A second object of the present invention is to provide a connector that can improve the stability of electrical connection of contact portions.

  To achieve the above object, the present invention comprises an insertion side connector having a first contact portion and a mating connector having a second contact portion, and the insertion side connector is inserted into the mating connector. Accordingly, in the connector in which the first contact portion and the second contact portion are in contact with each other, the second contact portion includes a contact portion protruding toward the first contact portion, The contact portion of 1 includes a fitting portion that guides the contact portion to an appropriate position as the insertion-side connector is inserted and fits the contact portion.

  Moreover, this invention is comprised by the insertion side connector provided with a 1st contact part, and the other party connector provided with a 2nd contact part, and the said 1st by inserting the said insertion side connector in the said other party connector. In the connector in which the contact portion contacts the second contact portion, the second contact portion includes a contact portion protruding toward the first contact portion, and the first contact portion includes Includes a region where the width of the portion that comes into contact with the contact portion first is wider than that of the contact portion when the insertion-side connector is inserted, and the width gradually decreases as the insertion-side connector is inserted. It is provided with a recessed portion that is recessed.

  In this invention, it is preferable that the opening part of the said recessed part is a triangle which makes the base the part which contacts the said contact part first, and the said recessed part is a triangle from which the plane which passes through each edge | side of the said triangle becomes a slope. It can be a cone shape.

  Moreover, this invention is comprised by the insertion side connector provided with a 1st contact part, and the other party connector provided with a 2nd contact part, and the said 1st by inserting the said insertion side connector in the said other party connector. In the connector in which the contact portion contacts the second contact portion, the second contact portion includes a contact portion protruding toward the first contact portion, and the first contact portion includes When inserting the insertion-side connector, the interval between the portions that first contact the contact portion is wider than the contact portion, and includes a region where the interval gradually decreases as the insertion-side connector is inserted. It has a convex part which protruded facing.

  In the present invention, the convex portion can be formed in a C shape or a V shape.

  In the present invention, the first contact portion is provided with a protruding portion that protrudes toward the second contact portion at a portion that contacts the contact portion earlier than the concave portion or the convex portion. It can be set as the structure provided.

  As described above, according to the present invention, when the insertion side connector is inserted into the mating connector, the contact portion is formed in the concave portion or the convex portion arranged opposite to each other even when the position of each contact portion is shifted. After the contact, since the guide is gradually guided to an appropriate position along with the insertion, the contact portion and the concave portion or the convex portion can be reliably brought into contact at two points. In addition, since the contact part moves while rubbing the concave part or the convex part, even if a flux that scatters during reflow soldering or a foreign substance that adheres during work remains on the contact surface, it can be scraped off and stable electrical Secure connection.

  The connector of the present invention has the following effects.

  The first effect of the present invention is that the contact portion can be reliably brought into contact. The reason for this is that when the insertion side connector is inserted into the mating connector, the contact portion of the mating contact part does not get over the projection part or passes through the vicinity of the projection part and does not get over the projection part. (For example, a triangular concave portion) or a convex portion (for example, a C-shaped convex portion) having an interval equal to or larger than the width of the protruding portion, and the contact portion gradually moves on the concave portion or the slope of the convex portion with insertion. This is because the contact portion can be reliably brought into contact with the concave portion or the convex portion at two points because it is guided to an appropriate position.

  The second effect of the present invention is that the stability of electrical connection of the contact portion can be improved. The reason is that the contact part moves while rubbing the slope of the concave part or convex part, so that the flux scattered during reflow soldering and the foreign matter adhering to the work remain at the contact point between the contact part and the concave part or convex part. This is because the flux and foreign matters can be scraped off by exhibiting a cleaning effect.

  In a preferred embodiment of the connector according to the present invention, the connector is composed of an insertion side connector and a mating connector, and the mating connector includes a mating contact portion having a contact portion. It has a protrusion that the contact portion gets over at the time of insertion, and a concave portion in which the contact portion fits or a convex portion that is arranged oppositely. The width of the concave portion or the interval between the convex portions comes into contact with the contact portion first when the connector is inserted. The part is formed so as to include a region that is larger than the width of the contact part and gradually decreases as the connector is inserted. After passing the vicinity of the part, it fits into the concave part or convex part, and is guided in a self-aligned manner to an appropriate position while gradually moving the slope of the concave part or convex part as the connector is inserted. To focus, it is possible to realize a reliable two-point contact. In addition, since the contact part moves while rubbing the slope of the concave or convex part, even when flux scattered during reflow soldering or foreign matter adhering during work remains on the contact surface, the contact surface is moved by the movement during fitting. Contact can be made while shaving, and a stable electrical connection can be ensured.

  In order to describe the above-described embodiment of the present invention in more detail, a connector according to a first example of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the structure of the connector according to the present embodiment, and FIG. 2 is a perspective view and a plan view showing the structure of the insertion side connector. FIG. 3 is a cross-sectional view showing the connector fitting operation, and FIG. 4 is a plan view schematically showing the positional relationship of the contact portions in the connector fitting operation. FIG. 5 is a cross-sectional view schematically showing the state of the contact portion when the connector is fitted, and FIG. 6 is a plan view showing variations in the shape of the recess.

  As shown in FIG. 1, the connector of this embodiment includes an insertion side connector 10 and a mating connector 40, and the insertion side connector 10 is provided with an insertion side contact portion 20. The mating contact part 50 is disposed, and the insertion-side contact part 20 and the mating contact part 50 come into contact with each other, so that electrical connection between both connectors is ensured. Further, the mating contact portion 50 is formed so as to be appropriately deformed in response to the pressing of the insertion side contact portion 20, and protrudes toward the insertion side contact portion 20 in the vicinity of the distal end portion on the insertion side contact portion 20 side. A contact portion 51 is provided.

  When the insertion-side connector 10 is turned upside down and the opening is directed upward, the insertion-side connector 10 is as shown in FIG. 2A. The insertion-side connector 10 is a housing integrally or press-fitted with an insulating member such as a plastic material. As shown in FIG. 2 (b), the insulator-side insulator portion 30 that is a body and the insertion-side contact portion 20 that is fixed to the insulator portion 30 are connected to the counterpart-side contact portion 50. A protrusion 21 for obtaining a feel at the time of fitting and a recess 22 for fitting with the contact part 51 of the mating contact part 50 are provided. As shown in FIG. 2C, the shape of the opening portion of the recess 22 is such that when the insertion side connector 10 is inserted into the mating connector 40, the portion that comes into contact with the contact portion 51 first is the bottom side. Along with this, a triangle (such as a regular triangle or an isosceles triangle) in which the interval between the other two sides is gradually narrowed is set, and the length of the bottom side is set larger than the width of the contact portion 51. The recess 22 is formed with a recess (that is, a triangular pyramid recess) having a plane including each side as a slope (a plane including the other two sides is the slopes 23a and 23b).

  And the contact part 51 of the other party contact part 50 passes through the base of the recessed part 22, and it implement | achieves it by rubbing the inclined surfaces 23a and 23b, and implement | achieves the two-point contact of the contact part 51 stably. Further, the contact portion 51 scrapes the contact surface with the movement at the time of fitting against the flux scattered during the reflow soldering of the contact surface and the foreign matter adhering during the work, so that a stable electrical connection can be ensured. .

  1 and 2 are examples, and the outer shape of the insertion-side connector 10 and the counterpart connector 40, the number and arrangement of the insertion-side contact portion 20 and the counterpart-side contact portion 50, and the protrusion 21 of the insertion-side contact portion 20 are shown. The shape and the like are not particularly limited.

  In FIG. 2, the shape of the opening portion of the recess 22 is a triangle. However, the recess 22 of this embodiment has a width that is larger than the width of the contact portion 51 before the contact portion 51 is in contact with the insertion portion. Accordingly, the shape may be any shape as long as the width gradually decreases. For example, a trapezoidal shape as shown in FIG. Further, in order to obtain the effect of the present invention, it is only necessary to provide a part of the region whose width is gradually narrowed with insertion. Therefore, for example, as shown in FIG. A shape combined with a rectangle or an oval shape as shown in FIG. Moreover, although the hollow was made into the triangular pyramid shape in FIG. 2, as shown in FIG.6 (d), as a shape (namely, shape which remove | eliminated the upper part of the triangular pyramid) which has a bottom face in the center part of a hollow, for example. Alternatively, the inner surface of the recess 22 may be substantially vertical.

  Next, a state of connection between the insertion side contact portion 20 and the counterpart contact portion 50 will be described with reference to FIGS. 3 to 5.

  As shown in FIG. 3A, when the insertion-side connector 10 is brought closer to the mating connector 40, the contact portion 51 of the mating contact portion 50 is inserted into the insertion-side contact portion 20 as shown in FIG. As shown in FIG. 4 (b), it is fitted into the triangular recess 22. At that time, the contact portion 51 may not be able to get over the projection portion 21 and the contact portions may be shifted laterally. However, the bottom of the concave portion 22 of this embodiment is wider than the contact portion 51, The portion 51 is further fitted while fitting into the recess 22.

  The contact portion 51 abuts against the slopes 23a and 23b of the recess 22 and is moved while being guided to an appropriate position by the slopes 23a and 23b when moving gradually toward the distal end side of the recess 22; Even if it contacts only, it comes to contact at two points of the slopes 23a and 23b as shown in FIG. 4 (c), and as shown in FIG. 3 (b), the contact part 51 of the counterpart contact part 50. Is in a state of being securely fitted into the recess 22 of the insertion-side contact portion 20. When the XX cross section in this state is schematically shown in FIG. 5, the contact portion 51 of the mating contact portion 50 contacts and fits at two points of the concave portion 22 of the insertion side contact portion 20.

  At this time, even if the flux 22 scattered during reflow soldering or foreign matter adhering during work remains in the concave portion 22 and the contact portion 51 that are the contact portions of the insertion side contact portion 20 and the counterpart contact portion 50, the counterpart contact portion 50 Since the contact portion 51 gradually moves while rubbing the inner surface of the concave portion 22 of the insertion side contact portion 20, it is possible to scrape the contact surface, thereby exhibiting the effect of cleaning the remaining flux and foreign matters, A stable electrical connection can be ensured.

  Thus, according to the connector of the present embodiment, the width of the portion that comes into contact with the contact portion 51 first is larger than the width of the contact portion 51 in the insertion side contact portion 20 of the insertion side connector 10, and the insertion is accompanied. By providing a concave portion 22 (for example, a triangular pyramid-shaped concave portion 22) including a region whose width gradually decreases, the contact portion 51 is guided to an appropriate position using the two inclined surfaces 23a and 23b. And the contact portion can be reliably brought into contact. Further, when the contact portion 51 moves on the slopes 23a and 23b, the remaining flux, foreign matter, and the like can be scraped off, so that stable electrical connection can be ensured.

  Next, a connector according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view and a plan view showing the structure of the insertion side connector according to the present embodiment, and FIG. 8 is a plan view schematically showing the positional relationship of the contact portions in the connector fitting operation. Moreover, FIG. 9 is sectional drawing which shows the state of the contact part at the time of the fitting of a connector, and FIG. 10 is a top view which shows the variation of the shape of a convex part.

  In the first embodiment described above, the concave portion 22 is provided at a position facing the contact portion 51 in order to ensure that the insertion side contact portion 20 and the counterpart contact portion 50 are in contact with each other. As shown in FIG. 7, convex portions 24 arranged opposite to each other are provided in place of the concave portions 22, and the region between the convex portions 24 is caused to function in the same manner as the concave portions 22.

  As shown in FIG. 7, when the insertion side connector 10 is inserted into the mating connector 40, the convex portion 24 has an interval between the portions that come into contact with the contact portion 51 earlier than the width of the contact portion 51. A pair of linear protrusions including a region where the interval gradually decreases with insertion is arranged in a C shape.

  Then, the contact portion 51 of the counterpart contact portion 50 is engaged with the side surface of the C-shaped convex portion 24 (preferably a slope inclined at a predetermined angle), and the side surface of the convex portion 24 is rubbed. By fitting, the two-point contact of the contact part 51 is stably realized. Further, the contact portion 51 scrapes the contact surface with the movement at the time of fitting against the flux scattered during the reflow soldering of the contact surface and the foreign matter adhering during the work, so that a stable electrical connection can be ensured. .

  In FIG. 7, the pair of convex portions 24 are formed in a square shape, but the convex portion 24 of this example has a larger interval between the portions that contact the contact portion 51 first than the width of the contact portion 51. Any shape may be used as long as the interval gradually decreases with insertion, and for example, a V shape as shown in FIG. Further, in order to obtain the effect of the present invention, it suffices to provide a part of the region in which the interval is gradually narrowed with insertion, and thus, for example, the shape shown in FIG. You can also Moreover, the width of each convex part 24 does not necessarily need to be constant, for example, it is good also as a shape as shown in FIG.10 (c).

  Next, how the insertion side contact portion 20a and the counterpart contact portion 50 are connected will be described with reference to FIGS.

  The basic fitting mechanism of this embodiment is the same as that of the first embodiment described above, but when the insertion side connector 10 is brought closer to the mating connector 40, as shown in FIG. The contact portion 51 of the mating contact portion 50 gets over the protrusion 21 of the insertion-side contact portion 20a and fits between the C-shaped convex portions 24 as shown in FIG. 8B. At that time, the contact part 51 may not be able to get over the protrusion part 21 well, and the contact parts may be shifted laterally. However, the convex part 24 of this embodiment is wider than the contact part 51. The contact portion 51 is further fitted while fitting between the convex portions 24.

  And since the contact part 51 contact | abuts to the inner side surface of the convex part 24, and it is guide | induced to an appropriate position when moving along the convex part 24 gradually, even if only one place contacts at the beginning, As shown in FIG. 8 (c), contact is made at two points of the convex part 24, and the contact part 51 of the mating contact part 50 is securely fitted to the convex part 24 of the insertion side contact part 20a. . The contact portion 51 in this state is as shown in FIG. 9, and the contact portion 51 of the mating contact portion 50 contacts and fits at two points of the pair of convex portions 24 of the insertion side contact portion 20a.

  At this time, even if the flux 24 scattered during reflow soldering or foreign matter adhering during work remains on the convex portion 24 and the contact portion 51 which are contact portions of the insertion side contact portion 20a and the counterpart contact portion 50, the counterpart contact portion 50 contact portions 51 gradually move while rubbing the side surface of the convex portion 24 of the insertion side contact portion 20a, so that the contact surface can be scraped off, thereby exhibiting the effect of cleaning the remaining flux and foreign matter. A more stable electrical connection can be ensured.

  As described above, according to the connector of the present embodiment, the distance between the contact portion 51 and the insertion-side contact portion 20a of the insertion-side connector 10 is larger than the width of the contact portion 51. By providing the convex portion 24 having a shape such as a letter C shape including an area in which the interval is gradually narrowed, the contact portion 51 can be guided to an appropriate position using the opposing convex portion 24, and reliably. The contact portion can be brought into contact with. Further, when the contact portion 51 moves on the side surface of the convex portion 24, residual flux, foreign matter, and the like can be scraped off, so that stable electrical connection can be ensured.

  In the first embodiment, the concave portion 22 is provided in the insertion side contact portion 20 and the convex portion 24 is provided in the insertion side contact portion 20a in the second embodiment. However, the present invention is limited to the above embodiment. Instead, for example, a combination of these can be modified such that the concave portion 22 is provided between the pair of convex portions 24.

  The present invention is not limited to a connector, and can be applied to any terminal that requires electrical connection.

It is a perspective view which shows the structure of the connector which concerns on the 1st Example of this invention. It is a perspective view showing the structure of the insertion side connector concerning the 1st example of the present invention. It is sectional drawing which shows the fitting operation | movement of the connector which concerns on 1st Example of invention. It is a top view which shows the positional relationship of the contact part in the fitting operation | movement of the connector which concerns on 1st Example of invention. It is sectional drawing which shows the state of the contact part at the time of the fitting of the connector which concerns on 1st Example of this invention. It is a top view which shows the variation of the structure of the insertion side contact part which concerns on 1st Example of this invention. It is a perspective view which shows the structure of the insertion side connector which concerns on the 2nd Example of this invention. It is a top view which shows the positional relationship of the contact part in the fitting operation | movement of the connector which concerns on 2nd Example of invention. It is sectional drawing which shows the state of the contact part at the time of the fitting of the connector which concerns on 2nd Example of this invention. It is a top view which shows the variation of the structure of the insertion side contact part which concerns on the 2nd Example of this invention. It is a perspective view which shows the structure of the conventional connector. It is a figure which shows the structure of the conventional insertion side connector. It is a top view which shows the positional relationship of the contact part in the fitting operation | movement of the conventional connector. It is sectional drawing which shows the state of the contact part at the time of the fitting of the conventional connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Insertion side connector 20, 20a Insertion side contact part 21 Protrusion part 22 Concave part 23a, 23b Slope 24 Convex part 30 Insulator part 40 Opposition side connector 50 Opposition side contact part 51 Contact part 60 Insertion side connector 70 Insertion side contact part 71 Protrusion part 72 recess

Claims (7)

An insertion side connector having a first contact portion and a mating connector having a second contact portion are configured, and the first contact portion and the first connector are inserted by inserting the insertion side connector into the mating connector. In the connector in contact with the two contact parts,
The second contact portion includes a contact portion protruding toward the first contact portion side,
The first contact portion includes a fitting portion that guides the contact portion to an appropriate position in accordance with the insertion of the insertion-side connector and fits the contact portion. An insertion side connector having a first contact portion and a mating connector having a second contact portion are configured, and the first contact portion and the first connector are inserted by inserting the insertion side connector into the mating connector. In the connector in contact with the two contact parts,
The second contact portion includes a contact portion protruding toward the first contact portion side,
In the insertion of the insertion side connector, the first contact portion has a width wider than that of the contact portion, and the width gradually increases as the insertion side connector is inserted. A connector having a recess recessed to include a narrowing region.   The connector according to claim 2, wherein the opening of the concave portion is a triangle having a base that is a portion that contacts the contact portion first.   The connector according to claim 3, wherein the concave portion has a triangular pyramid shape in which a plane passing through each side of the triangle is an inclined surface. An insertion side connector having a first contact portion and a mating connector having a second contact portion are configured, and the first contact portion and the first connector are inserted by inserting the insertion side connector into the mating connector. In the connector in contact with the two contact parts,
The second contact portion includes a contact portion protruding toward the first contact portion side,
When the insertion side connector is inserted into the first contact portion, the interval between the portions that contact the contact portion first is wider than the contact portion, and the interval gradually increases with the insertion of the insertion side connector. And a convex portion protruding oppositely so as to include a narrowing region.   The connector according to claim 5, wherein the convex portion has a C shape or a V shape.   The first contact portion includes a protrusion protruding toward the second contact portion at a portion that comes into contact with the contact portion earlier than the concave portion or the convex portion. Item 7. The connector according to any one of Items 1 to 6.

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