JP2016207261A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which enables appropriate terminal connection by locking even if the number of terminals increases.SOLUTION: A connector comprises: a first connector 10 having a plurality of first connection terminals 11 which are annularly arranged; and a second connector 20 having a plurality of second connection terminals 21 which are correspondingly connected to the plurality of first connection terminals 11, respectively. The first connector 10 has a lock part 16 on the inner side of the plurality of first connection terminals 11. The second connector 20 has, on the inner side of the plurality of second connection terminals 21, a lock receiving part 26 to be engaged with the lock part 16. With this structure, the force required when locking the lock part 16 to the lock receiving part 26 can be used for the connection between the first connection terminals 11 and the second connection terminals 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector, and more particularly to a board-to-board connector for making a connection between two circuit boards.

  As a connector for performing connection between two circuit boards, for example, a board-to-board connector 900 disclosed in Patent Document 1 is known. The structure of the board-to-board connector 900 is shown in FIG.

  The board-to-board connector 900 includes a first terminal 961, a first housing 911 having a substantially rectangular parallelepiped shape including an insertion recess, a first connector 901 having a first reinforcing bracket 951 disposed in the insertion recess, and a first terminal. The second terminal connected to the 961, the second housing having a substantially rectangular parallelepiped shape provided with the insertion convex portion inserted into the insertion concave portion, and the second reinforcement fitting disposed on the insertion convex portion and fitted to the first reinforcement fitting A board-to-board connector, wherein one of the first reinforcing bracket 951 and the second reinforcing bracket is formed from a wide member, and the other is formed from a narrow member. In addition, the first connector 901 is provided with a lock portion 954 that protrudes at both ends of the first terminal 961, and the second connector has a plurality of second locks that protrude with the first lock portion 954. Department.

  With such a configuration, the board-to-board connector 900 requires a strong removal force because the fitting state between the first reinforcing bracket 951 and the second reinforcing bracket is strengthened. As a result, it is possible to provide the board-to-board connector 900 in which the fitting between the first connector and the second connector is reliably held, the operability is high, and the reliability is high.

Japanese Patent No. 5253129

  However, in the board-to-board connector 900, the lock portions are disposed on both ends of the first terminal. Therefore, in order to securely lock the first connector and the second connector when connected, the housing of the second connector is used. It is necessary to push in both ends. However, when the number of terminals increases, even if the lock portion of the first connector and the lock portion of the second connector are surely locked, the vicinity of the center of the second terminal of the second connector becomes the first terminal of the first connector. There was a problem that it could not be pushed in well and proper terminal connection was not made.

  The present invention has been made in view of such a state of the art, and an object of the present invention is to provide a connector in which appropriate terminal connection is achieved by locking even if the number of terminals increases.

  In order to solve the above-described problem, the connector includes a first connector having a plurality of first connection terminals arranged in an annular shape, and a plurality of second connection terminals connected corresponding to each of the plurality of first connection terminals. A second connector having a lock portion on an inner side of the plurality of first connection terminals, and the second connector being an inner side of the plurality of second connection terminals. It has the feature that it has the lock receiving part fitted to the said lock part on the side.

  In the connector configured as described above, the locking portion of the first connector is disposed on the inner side of the first connection terminal, and therefore the force when the locking portion is fitted to the lock receiving portion of the second connector is the first. This can contribute to the connection between the connection terminal and the second connection terminal. As a result, even if the number of terminals increases, it is possible to provide a connector in which appropriate terminal connection is achieved by locking.

  In the above-described configuration, the lock portion and the lock receiving portion are formed of a metal member.

  In the connector configured as described above, since the lock portion and the lock receiving portion are formed of a metal member, it is possible to improve durability when the connector is inserted and removed.

  In the above configuration, the lock portion and the lock receiving portion are formed of a conductive metal member, and at least one of the lock portion and the lock receiving portion is connected to a grounding portion of an external device. It has the feature of being.

  In the connector configured as described above, since at least one of the lock portion and the lock receiving portion is connected to the grounding portion of the external device, both the first connector and the second connector are connected to the grounding portion of the external device during fitting. Can be grounded. As a result, noise resistance can be improved.

  Further, in the above configuration, the lock receiving portion is characterized by comprising a wire spring.

  In the connector configured as described above, since the lock receiving portion is formed by a wire spring, the connector fitting structure can be realized with a simple configuration.

  In the above configuration, the outer shape of the first connector is circular, and a plurality of the first connection terminals are annularly arranged along the outer shape of the first connector, and the second connector The outer shape of the second connector is circular, and the plurality of second connection terminals are arranged in a ring shape along the outer shape of the second connector.

  In the connector configured in this way, the outer shape of the first connector and the second connector is circular, so that the outer shape of the first connector and the second connector is not circular (for example, rectangular). And since the 1st connecting terminal and the 2nd connecting terminal can be continuously arranged over the whole perimeter, the mounting area of a connector main part can be made smaller.

  In the connector of the present invention, since the lock portion of the first connector is disposed on the inner side of the first connection terminal, the force when fitting the lock portion to the lock receiving portion of the second connector is the same as that of the first connection terminal. This can contribute to the connection with the second connection terminal. As a result, even if the number of terminals increases, it is possible to provide a connector in which appropriate terminal connection is achieved by locking.

It is a perspective view of a connector in the state where the 1st and 2nd connector was combined. It is a disassembled perspective view which shows each member which comprises a connector. It is a top view of the connector in the state where the 1st and 2nd connector was combined. It is a front view of the connector of the state attached to the circuit board. It is a perspective view which shows the external appearance of a 1st connector. It is a perspective view which shows the external appearance of a 2nd connector. It is an expansion perspective view of the lock receiving part of the 2nd connector. It is sectional drawing which shows the lock | rock receiving part of a 2nd connector. It is a perspective view which shows the process in which a 1st connector and a 2nd connector are fitted. It is sectional drawing which shows the process in which a 1st connector and a 2nd connector are fitted. It is an expansion perspective view of the part with which the 1st connector and the 2nd connector are fitting. It is a top view which shows the connector which concerns on a prior art example.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The connector 100 (board-to-board connector) according to the present embodiment is used, for example, to connect two circuit boards attached in an electronic device such as a smartphone to each other. In addition, about the use of the connector 100 which concerns on this Embodiment, it is not limited to this, It can change suitably. In this specification, unless otherwise specified, the + X side of each drawing is described as the right side, the -X side is the left side, the + Y side is the rear side, the -Y side is the front side, the + Z side is the upper side, and the -Z side is the lower side. To do.

  With reference to FIG. 1 thru | or FIG. 4, the whole structure of the connector 100 is demonstrated. FIG. 1 is a perspective view of the connector 100 in a state where the first connector 10 and the second connector 20 are combined. FIG. 2 is an exploded perspective view showing each member constituting the connector 100. 3 is a plan view of the connector 100 in a state where the first connector 10 and the second connector 20 are combined, and FIG. 4 is a state where the connector 100 is attached to the first circuit board 61 and the second circuit board 62. 1 is a front view of a connector 100. FIG. When the connector 100 or its constituent members are shown in the future, the first circuit board 61 and the second circuit board 62 are omitted in the drawings other than FIG.

  As illustrated in FIG. 1, the connector 100 includes a lower first connector 10 and an upper second connector 20.

  As shown in FIG. 2, the first connector 10 includes a plurality of first connection terminals 11, an elastic member 17 constituting a lock portion 16, and a first housing 19. The second connector 20 includes a plurality of second connection terminals 21, a wire spring 27 constituting a lock receiving portion 26, a metal plate 28, and a second housing 29.

  As shown in FIG. 1, the first connector 10 has a circular outer shape, and a plurality of first connection terminals 11 made of a conductive metal are annularly formed along the outer shape of the first connector 10. Is arranged. The second connector 20 also has a circular outer shape, and a plurality of second connection terminals 21 made of a conductive metal are annularly arranged along the outer shape of the second connector 20. Therefore, the outer shape of the connector 100 is circular as shown in FIG. By forming the outer shape of the connector 100 into a circular shape, the plurality of first connection terminals 11 and the plurality of second connection terminals 21 can be efficiently arranged continuously at a predetermined pitch along the outer periphery. In the present embodiment, the outer shape of the connector 100 is circular, but the outer shape may be a polygonal shape such as a rectangular shape or an octagonal shape.

  In the present embodiment, the first connector 10 is a receptacle-type connector in which the first connection terminal 11 has a recess, and the second connector 20 is a plug-type connector in which the second connection terminal 21 has a projection. Accordingly, the convex portions of the second connection terminals 21 are pushed into the concave portions of the first connection terminals 11 and are fitted to each other. In the present embodiment, the first connector 10 is a receptacle-type connector having a concave portion, and the second connector 20 is a plug-type connector having a convex portion, but the first connector 10, that is, the lower connector is convex. It may be a plug type connector having a portion, and the second connector 20, that is, the upper connector may be a receptacle type connector having a recess.

  As shown in FIG. 4, the first connector 10 is a first circuit board 61 (in this embodiment, the lower circuit board) which is one of two circuit boards mounted in an external device (not shown). The second connector 20 is mounted on the second circuit board 62 (in this embodiment, the upper circuit board), which is the other circuit board of the two circuit boards mounted in the external device. ) Implemented. The first circuit board 61 and the second circuit board 62 are configured with an electronic circuit for causing the device to function. The electronic circuit is provided with a grounding part for grounding the circuit.

  When the first connector 10 is mounted on the first circuit board 61, the plurality of first connection terminals 11 of the first connector 10 are attached to terminal patterns (not shown) provided on the first circuit board 61 by soldering or the like. It is done. In addition, when the second connector 20 is mounted on the second circuit board 62, the plurality of second connection terminals 21 of the second connector 20 are also soldered to a terminal pattern (not shown) provided on the second circuit board 62. Attached by. When the second connector 20 mounted on the second circuit board 62 is fitted into the first connector 10 mounted on the first circuit board 61, the first circuit board 61 and the second circuit board 62 are connected to each other. Connected to each other.

  Next, the configurations of the first connector 10 and the second connector 20 will be described with reference to FIGS. 1 and 5 to 8. FIG. 5 is a perspective view showing the external appearance of the first connector 10, and FIG. 6 is a perspective view showing the external appearance of the second connector 20. 7 is an enlarged perspective view of the lock receiving portion 26 in the second connector 20, and FIG. 8 is a view of the lock receiving portion 26 in the second connector 20 as seen from the line AA shown in FIG. It is sectional drawing.

  As shown in FIG. 5, the first connector 10 has a first housing 19 that is circular in a plan view and formed of synthetic resin. The plurality of first connection terminals 11 described above are circular in shape. An annular shape is provided along the outer shape of the first housing 19. A first alignment portion 13 and a second alignment portion 15 are provided on the inner side of the plurality of first connection terminals 11 in the first housing 19.

  The first alignment portion 13 is disposed at the center of the flat region surrounded by the plurality of first connection terminals 11 of the first housing 19. The first alignment portion 13 includes a first protrusion 13 a that protrudes upward at the center of the first housing 19, and an elastic member 17 that is attached to the first protrusion 13 a. The shape of the first alignment unit 13 is substantially circular in plan view.

  The second alignment portion 15 is formed by a second protrusion 15 a protruding upward from a flat region of the first housing 19, and is disposed at a plurality of locations with the first alignment portion 13 interposed therebetween. The shape of the second alignment portion 15 is a shape having a long portion and a short portion or a rectangular shape in plan view.

  As shown in FIGS. 1 and 5, the first connector 10 further includes a lock portion 16 on the inner side of the plurality of first connection terminals 11. The lock part 16 is constituted by an elastic member 17 attached to the first protrusion 13a described above.

  The elastic member 17 constituting the lock portion 16 is formed from a metal member. In particular, in this embodiment, the elastic member 17 is formed from a conductive metal member.

  As shown in FIG. 5, the elastic member 17 includes a top surface portion 17a placed on the upper end portion of the first protrusion 13a, an elastic arm portion 17b that contacts the side surface of the first protrusion 13a, and a first connector terminal portion 17c. It consists of. The first housing 19 is provided with an opening at a portion where the first connector terminal portion 17 c is disposed. The first connector terminal portion 17 c is connected to the first connector 10 through the opening provided in the first housing 19. It is exposed to the outside from the lower surface.

  After the elastic member 17 is attached to the first housing 19, the surface exposed to the outside of the first connector terminal portion 17c is a conductor pattern (not shown) provided on the first circuit board 61 shown in FIG. At the same time when the first connection terminal 11 is attached, it is attached with solder or the like. The conductor pattern to which the first connector terminal portion 17c of the first circuit board 61 is attached is connected to the ground portion of the electronic circuit of the external device described above. Accordingly, the lock portion 16 is connected to the ground portion of the electronic circuit provided on the first circuit board 61 via the first connector terminal portion 17c.

  As shown in FIG. 6, the second connector 20 includes a second housing 29 formed of a synthetic resin that is circular in plan view, and the plurality of second connection terminals 21 described above are circular. An annular shape is provided along the outer shape of the second housing 29. A first alignment engagement portion 23 and a second alignment engagement portion 25 are provided on the inner side of the plurality of second connection terminals 21 in the second housing 29.

  The first alignment engagement portion 23 includes a first opening 23a penetrating the central portion of the second housing 29. When the first connector 10 and the second connector 20 are engaged, as shown in FIG. The first alignment portion 13 disposed at the center of the first connector 10 is inserted into the first opening 23a.

  The second alignment engagement portion 25 is provided at a position of the second housing 29 that faces each of the plurality of second alignment portions 15 disposed in the first connector 10. The second alignment engagement portion 25 is a second opening 25 a provided in the second housing 29, and has a shape that matches the shape of each of the plurality of second alignment portions 15 provided in the first connector 10. It has become. When the first connector 10 and the second connector 20 are engaged, as shown in FIG. 1, the second alignment portion 15 is inserted into the second opening 25a.

  As shown in FIGS. 1 and 6, the second connector 20 further includes a lock receiving portion 26 that fits with the lock portion 16 described above on the inner side of the plurality of second connection terminals 21. The lock receiving portion 26 includes a wire spring 27.

  The wire spring 27 constituting the lock receiving portion 26 is formed from a metal member. In particular, in this embodiment, the wire spring 27 is formed from a conductive metal member.

  As shown in FIG. 7, the wire spring 27 has a wire spring fitting portion 27a and a wire spring end portion 27b on both sides of the wire spring center portion 27c. The wire spring 27 has a large U-shape formed by the wire spring central portion 27c and the wire spring fitting portions 27a on both sides thereof, and the wire spring end portion 27b and the wire spring fitting portions 27a also form 2 Two small U-shapes are formed.

  The wire spring 27 is placed on the metal plate 28 as shown in FIG. Similar to the wire spring 27, the metal plate 28 is formed of a conductive metal member, and includes a metal plate base portion 28a having a flat surface, a second connector terminal portion 28b, and a metal plate contact portion 28c having elasticity. It is formed with. As shown in FIG. 7, the metal plate 28 and the wire spring 27 are electrically connected to each other by the wire spring central portion 27c and the metal plate contact portion 28c being always in contact by the elastic force of the metal plate contact portion 28c. It is connected to the.

  As shown in FIG. 8, a wire spring accommodating portion 29b surrounded by a wall portion 29a is formed inside the second housing 29 made of synthetic resin. The lower end of the housing 29 is attached and fixed to the lower side of the wire spring accommodating portion 29b. The wire spring 27 is placed on the metal plate base portion 28a of the metal plate 28, and can be expanded and contracted in the left-right direction in the wire spring storage portion 29b with the upper portion in contact with the ceiling portion of the wire spring storage portion 29b. It is stored in.

  Here, the wire spring fitting portion 27a of the wire spring 27 faces the first opening 23a, and the wire spring fitting portion 27a and the wire spring central portion 27c surround the first opening 23a. The wire spring end portion 27b is sandwiched between the left and right walls 29b, but is held so as to be movable left and right within the space. The contact between the wire spring central portion 27c and the metal plate contact portion 28c described above is made by pressing the wire spring center portion 27c against the metal plate contact portion 28c in the wire spring storage portion 29b.

  After the metal plate 28 and the wire spring 27 are attached to the second housing 29, the surface exposed to the outside of the second connector terminal portion 28b is a conductor pattern (on the second circuit board 62 shown in FIG. (Not shown) is attached with solder or the like at the same time as the second connection terminal 21 is attached. The conductor pattern to which the second connector terminal portion 28b of the second circuit board 62 is attached is connected to the ground portion of the electronic circuit of the external device described above. Accordingly, the lock receiving portion 26 is connected to the ground portion of the electronic circuit provided on the second circuit board 62 via the second connector terminal portion 28b.

  In the present embodiment, the lock portion 16 of the first connector 10 and the lock receiving portion 26 of the second connector 20 are both connected to the grounding portion of the electronic circuit in the external device. Since the lock receiving portion 26 is electrically connected to each other, at least one of the lock portion 16 and the lock receiving portion 26 may be connected to the grounding portion of the external device. If either one of the lock portion 16 and the lock receiving portion 26 is connected to the grounding portion of the external device, the first connector 10 and the second connector 20 are both connected to the grounding portion of the external device. The In other words, even if one of the lock part 16 and the lock receiving part 26 is not connected to the ground part of the external device, the first connector 10 and the second connector 20 are both grounded of the external device. Connected to the part.

  Next, the process of fitting the first connector 10 and the second connector 20 will be described with reference to FIGS. FIG. 9 is a perspective view showing a process of fitting the first connector 10 and the second connector 20, and FIG. 9A shows the first connector 10 and the second connector 20 just before fitting. FIG. 9B shows the first connector 10 and the second connector 20 in the middle of fitting, and FIG. 9C shows the first connector 10 and the second connector 20 after fitting. It shows. FIG. 10 is a cross-sectional view of the process of fitting the first connector 10 and the second connector 20 as seen from the line AA shown in FIG. 3, and FIG. FIG. 10B shows the first connector 10 and the second connector 20 in the middle of fitting, and FIG. 10C shows the fitting. The 1st connector 10 and the 2nd connector 20 after making it show are shown. FIG. 11 is an enlarged perspective view showing a portion fitted in the lock portion 16 when the first connector 10 and the second connector 20 are fitted, with the second housing 29 removed. is there.

  As shown in FIGS. 9A and 10A, immediately before the first connector 10 and the second connector 20 are fitted together, the first connector 10 and the second connector 20 are separated from each other. The lock part 16 and the lock receiving part 26 are in positions facing each other.

  At this time, the elastic arm portion 17b of the elastic member 17 constituting the lock portion 16 and the wire spring fitting portion 27a of the wire spring 27 constituting the lock receiving portion 26 are in a state before contact.

  Next, as shown in FIG. 9B and FIG. 10B, in the middle of fitting the first connector 10 and the second connector 20, the lock portion 16 of the first connector 10 is connected to the second connector 20. Is inserted into the first opening 23a.

  At this time, the elastic arm portion 17b of the elastic member 17 and the wire spring fitting portion 27a of the wire spring 27 come into contact with each other, and as the lock portion 16 is further inserted into the first opening 23a, the elasticity on the right side of the elastic member 17 is reached. The arm portion 17b presses the wire spring fitting portion 27a on the right side of the wire spring 27 in the right direction, and the elastic arm portion 17b on the left side of the elastic member 17 has the wire spring fitting portion 27a on the left side of the wire spring 27. To the left.

  At the same time, the wire spring end portion 27b on the right side of the wire spring 27 moves in the right direction and comes into contact with the wall portion 29a of the second housing 29, and the wire spring end portion 27b on the left side of the wire spring 27. However, it moves to the left and contacts the wall 29a of the second housing 29. As a result, the wire spring end 27a on the right side of the wire spring 27 is pressed in the left direction, and the wire spring end 27a on the left side of the wire spring 27 is pressed in the right direction. Therefore, the wire spring fitting portion 27a is pressed toward the elastic arm portion 17b.

  When fitting the second connector 20 to the first connector 10, the left and right wire spring fitting portions 27 a of the wire spring 27 get over the portion of the elastic arm portion 17 b of the elastic member 17 protruding in the right direction or the left direction. When the wire spring fitting portion 27a gets over the elastic arm portion 17b, the urging force applied to the wire spring fitting portion 27a is further increased, and a click feeling is given.

  After the wire spring fitting portion 27a gets over the elastic arm portion 17b, the wire spring fitting portion 27a of the wire spring 27 is below the elastic arm portion 17b of the elastic member 17 as shown in FIGS. Move to the side. Therefore, the elastic member 17 which is the lock portion 16 is fitted with the wire spring 27 which is the lock receiving portion 26, and as a result, the first connector 10 and the second connector 20 are connected as shown in FIG. Can be fitted.

Hereinafter, the effect by having set it as this embodiment is demonstrated.
Since the connector 100 has the lock portion 16 of the first connector 10 disposed on the inner side of the first connection terminal 11, the force when the lock portion 16 is fitted to the lock receiving portion 26 of the second connector 20 is increased. This can contribute to the connection between the first connection terminal 11 and the second connection terminal 21. As a result, even if the number of terminals increases, it is possible to provide the connector 100 in which appropriate terminal connection is made by locking.

  In addition, since the lock portion 16 and the lock receiving portion 26 are formed of a metal member, durability when the connector 100 is inserted and removed can be improved.

  In addition, since at least one of the lock portion 16 and the lock receiving portion 26 formed of a conductive metal member is connected to the grounding portion of the external device, both the first connector 10 and the second connector 20 are fitted together. It can be grounded to the grounding part of the external device. As a result, noise resistance can be improved.

  In addition, since the lock receiving portion 26 is formed by the wire spring 27, the fitting structure of the connector 100 can be realized with a simple configuration.

  Moreover, since the external shape of the 1st connector 10 and the 2nd connector 20 is circular shape, compared with the case where the external shape of the 1st connector 10 and the 2nd connector 20 is not circular shape (for example, the case of rectangular shape). Since the 1 connection terminal 11 and the 2nd connection terminal 21 can be continuously arranged over the whole outer periphery, the mounting area of the connector 100 main body can be made smaller.

  As described above, in the connector of the present invention, the locking portion of the first connector is disposed on the inner side of the first connection terminal, so that the force when fitting the locking portion to the lock receiving portion of the second connector is increased. This can contribute to the connection between the first connection terminal and the second connection terminal. As a result, even if the number of terminals increases, it is possible to provide a connector in which appropriate terminal connection is achieved by locking.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 10 1st connector 11 1st connection terminal 13 1st position alignment part 13a 1st protrusion 15 2nd position alignment part 15a 2nd protrusion 16 Lock part 17 Elastic member 17a Top surface part 17b Elastic arm part 17c 1st connector terminal part 19 1st 1 housing 20 second connector 21 second connection terminal 23 first alignment engagement portion 23a first opening 25 second alignment engagement portion 25a second opening 26 lock receiving portion 27 wire spring 27a wire spring fitting portion 27b wire Spring end portion 27c Wire spring center portion 28 Metal plate 28a Metal plate base portion 28b Second connector terminal portion 28c Metal plate contact portion 29 Second housing 29a Wall portion 29b Wire spring storage portion 61 First circuit board 62 Second circuit board 100 Connector

Claims (5)

A first connector having a plurality of first connection terminals arranged in a ring; and a second connector having a plurality of second connection terminals connected to each of the plurality of first connection terminals,
The first connector has a lock portion on the inner side of the plurality of first connection terminals,
The second connector has a lock receiving portion that fits with the lock portion on the inner side of the plurality of second connection terminals.
A connector characterized by that. The lock part and the lock receiving part are formed of a metal member,
The connector according to claim 1. The lock portion and the lock receiving portion are formed of a conductive metal member,
At least one of the lock part and the lock receiving part is connected to a grounding part of an external device,
The connector according to claim 1, wherein the connector is a connector. The lock receiving portion is made of a wire spring,
The connector according to any one of claims 1 to 3, wherein The outer shape of the first connector is circular, and a plurality of the first connection terminals are annularly arranged along the outer shape of the first connector.
The external shape of the second connector is circular, and a plurality of the second connection terminals are annularly arranged along the external shape of the second connector.
The connector according to any one of claims 1 to 4, wherein the connector is provided.

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