Source: https://patents.google.com/patent/JP3853262B2/en
Timestamp: 2020-03-30 02:19:52
Document Index: 405381667

Matched Legal Cases: ['art 55', 'art 26', 'art 32', 'art 26', 'art 41', 'art 26', 'art 20', 'art 24', 'art 25', 'art 26', 'art 27', 'art 32', 'art 33', 'art 40']

JP3853262B2 - Flat conductor electrical connector - Google Patents
JP3853262B2
JP3853262B2 JP2002191774A JP2002191774A JP3853262B2 JP 3853262 B2 JP3853262 B2 JP 3853262B2 JP 2002191774 A JP2002191774 A JP 2002191774A JP 2002191774 A JP2002191774 A JP 2002191774A JP 3853262 B2 JP3853262 B2 JP 3853262B2
JP2002191774A
JP2004039321A (en
和久 常松
2002-07-01 Application filed by ヒロセ電機株式会社 filed Critical ヒロセ電機株式会社
2004-02-05 Publication of JP2004039321A publication Critical patent/JP2004039321A/en
2006-12-06 Publication of JP3853262B2 publication Critical patent/JP3853262B2/en
As this type of electrical connector, for example, the one disclosed in JP-A-7-142130 is known.
As shown in FIG. 7A of the accompanying drawings, this known connector has a plurality of flat terminals 50 made by punching a metal plate. In the housing 60, a plurality of through slits 61 parallel to the paper surface are arranged in a direction perpendicular to the paper surface, and a terminal 50 is accommodated in each slit 61. Each of these slits 61 communicates with the upper left portion of the housing 60 to form an opening 62. A pressurizing member 70 is rotatably provided in the opening 62.
The terminal 50 has an upper arm portion 51 and a lower arm portion 52 inside the housing, and a connection portion 53 outside the housing. The upper arm portion 51 is supported on the inner surface of the upper wall of the housing, and a substantially circular rotation guide portion 54 is formed at the tip located in the vicinity of the opening 62 of the housing. The lower arm portion 52 is flexible and has a tip. Has a contact portion 55.
The pressurizing member 70 is rotationally guided by the arcuate concave portions 71 by the rotational guide portions 54 of the plurality of terminals 50, and has a pressurizing portion 71 that forms a corner on the surface facing the inside of the housing.
In use, after the connector is arranged at a predetermined position on the target circuit board, the connection portion 53 of the terminal 50 is soldered to the predetermined circuit. Next, the pressure member 70 is brought to the open position as shown in FIG. 7A, and a flexible board F which is a kind of flat conductor is inserted into the connector, and a circuit portion is formed on the lower surface of the flexible board F. It arrange | positions so that it may be located on the contact part 55 of the terminal 50. FIG. Thereafter, as shown in FIGS. 7A and 7B, the pressing member 70 is rotated toward the closed position. At that time, the pressure unit 71 presses the flexible substrate F, and the circuit portion of the flexible substrate comes into elastic contact with the contact portion 55, so that the connection with the terminal 50 is ensured.
In such a known connector, the flexible substrate is pressed from above by a pressure member, so that the circuit portion formed on the lower surface of the flexible substrate comes into elastic contact with the contact portion of the terminal. . Therefore, the flexible substrate is limited to a use state in which the circuit portion is inserted so that the circuit portion comes to the lower surface.
However, depending on the arrangement environment of other electronic components around the circuit board on which the connector is arranged, there is a demand to use the connector so that the circuit portion of the flexible board is on the upper surface. However, the above known connector does not have a degree of freedom in the position where the contact is provided, and cannot meet this requirement.
In response to such a demand, the present invention gives a degree of freedom to the position where the contact is provided, and even if the circuit portion is located on the upper surface side of the flat conductor, that is, the pressure side by the pressure member, the flexible substrate is provided. An object of the present invention is to provide an electrical connector for a flat conductor that can be connected.
Electrical connector for flat conductor according to the present invention, the opening in the housing for holding the terminals, have a lid-like pressing member is provided between an open position and a closed position so as to be rotating, the open position Thus, the flat conductor can be inserted, and the conductor portion of the flat conductor and the contact portion of the terminal are brought into elastic contact at the closed position. Here, the flat conductor refers to a flexible circuit board, a flat cable, etc., which is formed in a flat shape and the conductor part is pressed against the contact part of the terminal, or a terminal having a pointed contact. This includes all flat types, such as those in which the part pierces the coating and contacts the conductor part.
In such electrical connectors, the terminals include a main arm portion comprising a second arm portion extending in a first arm portion and this almost the same direction and extending toward the opening from the base of the terminal within the housing, pressure The member is rotatably supported by a rotation guide portion formed at the distal end portion of the first arm portion, and a flat conductor is inserted from the opening portion between the first and second arm portions of the main arm portion. The terminal is a cantilevered sub-arm extending from at least one intermediate portion of the opposing edge of the first arm and the second arm of the main arm toward the base. And the main arm portion is elastically deformed so as to widen the distance between the tips of the first arm portion and the second arm portion by the rotation operation of the pressure member to the closed position, and the sub arm portion is elastically deformed as a fulcrum the intermediate portion located between the tip and the sub-arm tip parts, the tip portion of the sub-arm portion is a flat conductive It is characterized that it is way.
In the electrical connector of the present invention having such a configuration, in use, the flat conductor is the first arm that forms the main arm portion of the terminal from the distal end side having the conductor portion in a state where the pressure member is in the open position. It is inserted and arranged between the arm part and the second arm part. Thereafter, it allowed to rotating the pressure member to the closed position. As a result, the main arm portion from which the sub arm portion of the terminal extends is pushed by the pressing member, and the sub arm portion is elastically deformed with respect to the fulcrum to press the flat conductor. Accordingly, the flat conductor comes into contact with the terminal on the first arm portion side and the second arm portion side. That is, the flat conductor can be connected to the terminal regardless of which side has the conductor portion.
In one embodiment of the present invention, the first arm portion is located in the pressure member side space partitioned by the flat conductor surface, and the second arm portion is located in the counter pressure member side space, and the pressure member is closed. by the rotation operation to either pressure member by applying a flat conductive to the contact portion of the second arm portion, the sub-arm portion of the second arm portion by applying a flat conductive contact with the flat conductive member or sub arm portion of the second arm portion is so that by contacting the flat conductive by applying a flat conductor to the sub arm portion of the first arm portion. In that case, at least one sub-arm part of the first arm part and the second arm part may have a contact part.
Where and how to provide the sub-arm portion, there are several specific forms. First, the second arm portion has a contact portion at the distal end portion in the extending direction, and the sub arm portion extends from the intermediate portion toward the base portion so that the intermediate portion serves as a fulcrum. Is to do. Secondly, in the first arm portion, the sub arm portion extends in the direction of the base portion of the first arm portion from the vicinity of the rotation guide portion formed on the first arm portion. Third, the first arm portion is bent by receiving a reaction force from the pressure member when the pressure member is moved to the closed position, and the position of the movement guide portion can be displaced. In the case of the third example, due to the displacement of the movement guide portion, the sub arm portion of the first arm portion is flexed and rotated to increase the contact pressure with the flat conductor.
1 and 2 show a first embodiment of the present invention, FIGS. 3 and 4 show a second embodiment, and FIGS. 5 and 6 show a third embodiment, respectively.
In the connector of the first embodiment shown in FIG. 1, the housing 10 is formed by molding an electrically insulating material, extends in a direction perpendicular to the paper surface, and has a substantially rectangular parallelepiped outer shape partially opened. In the housing 10, slit-like grooves 11 parallel to the paper surface are formed penetrating left and right, and a plurality of the groove portions 11 are provided in parallel at a predetermined interval in a direction perpendicular to the paper surface. The housing has an opening 12 that is cut out at the upper right and communicates with the plurality of grooves 11.
A terminal 20 is inserted into the groove 11. The terminal 20 is shaped while leaving the flat surface of the metal plate as it is, and is inserted and held in each slit-like groove 11 of the housing. The terminal 20 includes a main arm portion 22 that extends rightward from the base portion 21 in the groove portion 11 and a connection portion 23 that protrudes from the lower portion of the base portion 21 to the outside of the housing. The main arm portion 22 includes a first arm portion 24 extending from the upper portion of the base portion 21 and a second arm portion 25 extending from the lower portion of the base portion 21.
The first arm portion 24 has a free end extending to the region of the opening 12 of the housing 10, and a substantially arc-shaped concave curved portion is formed at an edge near the second arm portion 25 near the free end. rotation guide portion 26 is formed. The rotation guiding portion 26 is for guiding pivotably pressure member described below. This is from the area adjacent to the first arm portion rotation guide part 26 of the 24 sub-arm portion 27 directed towards the base portion 21 extends. A curved cut portion 28 is formed in the first arm portion 24 in the vicinity of the base portion of the sub arm portion 27, and when receiving an external force, a portion 29, that is, the first arm portion 24 and the sub arm portion 27, The sub-arm portion 27 is elastically deformable in the rotational direction with the connecting region of Further, projections 30A and 30B that bite into the inner surface of the groove 11 of the housing are formed on the upper edges of the base portion 21 and the first arm portion 24.
The second arm portion 25 extends substantially parallel to and substantially the same length as the first arm portion 24, has a slight step portion 31 formed at the intermediate portion, and the first arm portion 24 at the free end. It has the contact part 32 which protruded toward the direction. Further, a sub arm portion 33 extends from the step portion 31 of the first arm portion 24 toward the base portion 21. At the tip of the sub arm portion 33, a protruding portion 33A similar to the contact portion 32 is formed. Thus, in the step portion 31, the free end side portion of the first arm portion 24 extending rightward and the sub arm portion 33 can be displaced like a seesaw with the step portion 31 as a fulcrum.
The rotation guide part 26 of the first arm portion 24, the pressing member 40 is guided pivotably. The pressurizing member 40 is made by molding an electrically insulating material, and extends over the arrangement range of the plurality of terminals 20 in a direction perpendicular to the paper surface. In FIG. 1, the pressure member 40 has a slit-like groove 41 formed at a position corresponding to the terminal 20 at a lower portion thereof, and accommodates a free end side portion of the first arm portion 24 of the terminal 20. is doing. Further, this groove part 41, have a substantially circular guided portion 42 is provided, the guided portion 42 is engaged with the rotation guide part 26 of the terminal 20, thereby, pressing member 40 Is rotatable from the open position in FIG. 1 to the closed position in the clockwise direction. A restricting portion 43 is provided on the upper portion of the pressure member 40, and interferes when the flat conductor is inserted obliquely (shifted in the direction of the paper) from the normal direction to prevent such insertion. .
In such a connector of this embodiment, a flat conductor such as a flexible substrate or a flat cable is connected in the following manner.
1) First, the connector is arranged on the circuit board before connection with the flat conductor, and the connection portion 23 of the terminal 20 is connected to the corresponding circuit portion by soldering.
2) Next, the pressurizing member 40 is brought to the open position shown in FIG. 1, that is, the position lifted by rotating counterclockwise. In such a state, the opening 12 of the housing is largely opened, and the main arm portion 22 of the terminal 20, that is, the first arm portion 24 and the second arm portion 25 communicate greatly with the external space. A flat conductor F is inserted between the first arm portion 24 and the second arm portion 25. The flat conductor F is positioned lightly in contact with or close to the sub-arm portion 27 of the first arm portion 24, the contact portion 32 of the second arm portion 25, and the protruding portion 33A of the sub-arm portion 33. .
3) Next, as shown in FIG. 2A, when the pressing member 40 is rotated clockwise, the pressing portion 44 of the pressing member 40 starts to press the flat conductor F downward. .
4) Further, the pressure member 40 is rotated to bring it to the closed position in FIG. The pressure member 40 maintains its closed position while pressing the flat conductor F downward. In this pressurized state, the flat conductor F strongly presses the contact portion 32 of the second arm portion 25 located in the vicinity of the pressing portion 44 to elastically deform the second arm portion 25 downward, and Using the portion 31 as a fulcrum, the region is subjected to rotational deformation, and the auxiliary arm portion 33 is lifted upward. The sub-arm portion 33 presses the flat conductor F upward at the protruding portion 33 </ b> A, and the flat conductor F presses against the sub-arm portion 27 of the first arm portion 24. Since the distance from the fulcrum is closer to the contact portion 32 than the protrusion 33A, based on the principle of leverage, the displacement of the contact portion 32 that is pressed with a strong force is greatly enlarged to make the protrusion 33A Displace it.
5) Moreover, since the free end side of the first arm portion 24 is lifted upward by the pressurizing member as compared to before insertion under the flat conductor , the sub arm portion 27 is pushed downward with the portion 29 as a fulcrum, The flat conductor F is pressed downward.
6) Thus, the flat conductor F has the top surface of the front end of the sub arm portion 27 of the first arm portion 24 and the bottom surface of the contact portion 32 of the second arm portion 25 and the protruding portion 33A of the sub arm portion 33, respectively. Elastic contact. Therefore, the flat conductor F is electrically connected to the terminal 20 if a conductor portion such as a circuit portion is provided at any position of the plurality of elastic contact portions. That is, electrical connection can be obtained at any of the upper and lower surfaces of the flat conductor F and at a plurality of positions (the same applies to other embodiments described later). In the drawing, the contact portion between the flat conductor F and the terminal that contacts the flat conductor F is illustrated so that the outlines interfere with each other. This is because the corresponding portion of the terminal locally compresses the flat conductor. However, it means that most of the amount of interference is elastic deformation at the corresponding part of the terminal.
Next, in 2nd embodiment shown by FIG. 3, the same code | symbol is attached | subjected to the same part as previous embodiment. In the second embodiment, as compared with the previous embodiment, with respect to the first arm portion 24, the cut portion 28 in the vicinity of the base portion of the sub arm portion 27 is deeply cut, and the second arm portion 25. In the previous embodiment, the secondary arm portion is not provided and the second arm portion 25 extends substantially straight from the base portion 21 and does not have a step portion as in the previous embodiment in the intermediate portion. Is different.
In the second embodiment, since the cut portion 28 is deep, as shown in FIG. 4A, the pressurizing unit 44 is flat while the pressurizing member 40 is being rotated to the closed position. When an upward reaction force is received from the conductor F, this is transmitted to the movement guide portion 26 of the terminal 20 via the guided portion 42, and as a result, the right portion of the cut portion 28 is moved upward with respect to the left portion. It is easy to be elastically deformed to lift.
Thereafter, when the pressurizing member 40 is rotated to the closed position, the pressurizing amount of the pressurizing portion 44 is reduced, so that the terminal is elastically deformed as shown in FIG. Thus, the tip of the sub arm portion 27 of the first arm portion 24 and the contact portion 32 of the second arm portion 25 are kept in contact with the flat conductor F. Although electrical contact with the flat conductor F is performed at the contact portion 32, the conductor portion may be exposed on the opposite surface (upper surface) of the flat conductor F, and the tip of the sub arm portion 27 may be used as the electrical contact portion. .
In the above-described embodiment, in order to displace the sub-arm portion provided in the first arm portion, not only the reaction force from the flat conductor, but also at both ends of the pressurizing member (end portions in a direction perpendicular to the paper surface). It is also possible to provide a cam portion so that the free end of the first arm portion is lifted upward when the pressure member is in the closed position.
As described above, according to the present invention, when one surface of a flat conductor is pressed with a pressure member, the conductor portion on the other surface of the flat conductor is connected to the first arm portion and the second arm portion of the main arm portion of the terminal. The contact part of the other arm part is reliably contacted not only by any one contact part of the arm part but also by the action of the sub arm part, so the arrangement of the conductor part on both sides of the flat conductor is selected. This makes it possible to increase the degree of freedom of design, and furthermore, it is possible to make contact on both sides and to make the contact more reliable.
FIG. 1 is a cross-sectional view of a connector according to a first embodiment of the present invention, showing a state where a pressure member is in an open position.
FIGS. 2A and 2B show how to use the connector of FIG. 1, wherein FIG. 2A shows a state in which the pressure member is moving to the closed position, and FIG.
FIG. 3 is a cross-sectional view of a connector according to a second embodiment of the present invention, showing a state where a pressure member is in an open position.
Figure 4 shows a connector used procedure in FIG. 3, (A) is pivoted way to the closed position of the pressure member, (B) shows a state in the closed position.
[5] a sectional view of a conventional connector, illustrating (A) has an open position pressure member, (B) is located halfway toward the closed position, (C) shows a state of the closed position, respectively.
DESCRIPTION OF SYMBOLS 10 Housing 12 Opening part 20 Terminal 21 Base 22 Main arm part 24 First arm part 25 Second arm part 26 Movement guide part 27 Sub arm part 32 Contact part 33 Sub arm part 40 Pressurizing member F Flat conductor
A lid-shaped pressure member is provided in the opening of the housing holding the terminal so as to be rotatable between an open position and a closed position, and a flat conductor can be inserted at the open position. in the electrical connector allowed to repression contact with the contact portion of the conductor portion and the terminal of the flat conductive pin extending first arm portion and this almost the same direction and extending toward the opening from the base of the terminal within the housing A main arm portion including a second arm portion, and the pressure member is rotatably supported by a rotation guide portion formed at a distal end portion of the first arm portion . A flat conductor can be inserted between the first and second arm portions from the opening , and the terminal can be inserted from at least one intermediate portion between the first arm portion of the main arm portion and the opposite edge portion of the second arm portion. It has a secondary arm portion cantilever extending toward the base, depending on the rotation operation to the closed position of the pressure member The main arm portions are elastically deformed to widen the spacing between the tips of the first arm portion and second arm portion, the sub-arm portion is located between the tip and the sub-arm tip of the main arm portion An electrical connector for a flat conductor, wherein the tip portion of the sub arm portion presses the flat conductor by elastic deformation with the intermediate portion as a fulcrum.
The first arm portion is located in the pressure member side space partitioned by the flat conductor surface, and the second arm portion is located in the anti-pressure member side space. by applying member is press the flat conductive to the contact portion of the second arm portion, or sub-arm portion of the second arm portion is in contact with the flat conductive member by applying a flat conductive or the second arm portion vice flat conductive electrical connector according to claim 1, characterized in that the arm portion is in so that contacting the flat conductive by applying a flat conductor to the sub arm portion of the first arm portion.
The electrical connector for a flat conductor according to claim 1 or 2, wherein at least one sub-arm portion of the first arm portion and the second arm portion has a contact portion.
The second arm portion has a contact portion at a distal end portion in the extending direction, and a sub arm portion extends from the intermediate portion toward the base portion, and is flexible with the intermediate portion serving as a fulcrum. The flat connector electrical connector according to claim 3.
The first arm portion has a sub arm portion extending from the vicinity of the rotation guide portion formed on the first arm portion toward the base portion of the first arm portion. An electrical connector for a flat conductor according to one of the above.
The first arm portion is deflected receives a reaction force from the pressure member during rotation of the closed position of the pressure member, the position of the rotation guiding portion formed in said first arm portion becomes a displaceable The flat-type electrical connector for a flat conductor according to any one of claims 1, 2, 3, and 4 .
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JP2004039321A JP2004039321A (en) 2004-02-05
JP3853262B2 true JP3853262B2 (en) 2006-12-06
JP2002191774A Expired - Fee Related JP3853262B2 (en) 2002-07-01 2002-07-01 Flat conductor electrical connector
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2005-07-29 A131 Notification of reasons for refusal