WO2017047361A1 - Card edge connector - Google Patents

Card edge connector Download PDF

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Publication number
WO2017047361A1
WO2017047361A1 PCT/JP2016/075110 JP2016075110W WO2017047361A1 WO 2017047361 A1 WO2017047361 A1 WO 2017047361A1 JP 2016075110 W JP2016075110 W JP 2016075110W WO 2017047361 A1 WO2017047361 A1 WO 2017047361A1
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WO
WIPO (PCT)
Prior art keywords
terminal
circuit board
pair
contact
housing
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Application number
PCT/JP2016/075110
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French (fr)
Japanese (ja)
Inventor
英敏 石田
聖典 守安
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017047361A1 publication Critical patent/WO2017047361A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures

Definitions

  • the present invention relates to a card edge connector.
  • Patent Document 1 discloses a card edge connector provided with a housing having a board housing space and a plurality of terminal fittings housed in the housing.
  • the plurality of terminal fittings are arranged so as to face each other with the board housing space interposed therebetween.
  • the contact portion provided on the terminal fitting elastically contacts the circuit board.
  • a predetermined contact pressure is secured between the terminal fitting and the circuit board by the elastic contact action of the contact portion. Therefore, a structure in which the contact portion elastically contacts the circuit board is necessary for ensuring contact reliability between the terminal fitting and the circuit board.
  • the present invention has been completed based on the above situation, and an object thereof is to ensure the contact reliability between the terminal fitting and the circuit board.
  • the card edge connector of the present invention is A synthetic resin housing in which a board housing space for inserting a circuit board is formed; A contact part that can contact the circuit board, and a terminal fitting attached to the housing so that the contact part faces the board housing space; The terminal fittings that are paired with the circuit board interposed therebetween are connected to each other, and a separation regulating member that regulates relative displacement of the paired terminal fittings in a direction away from the circuit board.
  • the separation member restricts the terminal metal and the circuit board from moving away, no reaction force acts between the terminal metal and the housing.
  • the terminal fitting moves following the circuit board. It is hard to occur and has excellent contact reliability.
  • the reaction force acting on the terminal fitting from the circuit board side does not act on the housing. Therefore, even if the housing is deformed such as sagging or thermal expansion, a predetermined contact pressure is ensured between the terminal fitting and the circuit board, so that contact reliability is excellent.
  • FIG. Sectional drawing showing the state which inserted the circuit board in the board
  • the separation regulating member is a single part in which a pair of attachment portions and a connection portion that connects base ends of the pair of attachment portions are integrated. May be individually attached to the pair of terminal fittings. According to this configuration, since the separation regulating member that couples the pair of terminal fittings is a single component, the number of components can be reduced.
  • the separation regulating member includes a plurality of pairs of the mounting portions arranged in parallel along the circuit board, and the connecting portion that connects the base end portions of the pair of mounting portions. Moreover, the single component provided with the connection part which connects several said connection parts may be sufficient. According to this configuration, the separation regulating member can be attached to the plurality of pairs of terminal fittings with one action.
  • the card edge connector of the present invention has a terminal main body portion to which the terminal fitting is attached in a state where relative displacement is restricted with respect to the attachment portion, and the contact portion restricts relative displacement with respect to the terminal main body portion.
  • the separation regulating member may be elastically deformed in such a manner as to widen the interval between the pair of attachment portions. According to this configuration, the contact pressure between the contact portion of the terminal fitting and the circuit board is ensured by using the elasticity of the separation regulating member. Therefore, the shape of the terminal fitting can be simplified as compared with the case where the contact portion is in a form that can be elastically displaced relative to the terminal body portion.
  • the card edge connector of the present invention is
  • the terminal fitting and the attachment portion may be formed with a holding portion for holding the attachment portion attached to the terminal fitting. According to this configuration, the terminal fitting and the separation regulating member can be attached to the housing in one action by holding the terminal fitting and the separation regulating member outside in the housing.
  • the card edge connector of the present invention is
  • the separation regulating member may include an insulating unit that holds the pair of terminal fittings in an insulated state. According to this configuration, there is no possibility that the paired terminal fittings are short-circuited.
  • Example 1 A first embodiment embodying the present invention will be described below with reference to FIGS. In the following description, the left and right directions in FIGS. For the up and down directions, the directions shown in FIGS.
  • the card edge connector A includes a harness side connector 10 and a board side connector 50.
  • the harness side connector 10 includes a housing 11 made of a synthetic resin and a plurality of pairs of terminal fittings 20 that are vertically opposed to each other.
  • the board-side connector 50 includes a circuit board 51 and a board holding member 52.
  • the housing 11 includes a housing main body 12 and a rear holder 13 assembled to the rear end portion of the housing main body 12. Inside the housing body 12, a plurality of pairs of terminal accommodating chambers 14 that are vertically symmetrical and that form a pair opposite to each other in the vertical direction are formed in parallel at a predetermined pitch in the left-right direction. A front wall portion 15 is formed at the front end of each terminal accommodating chamber 14. The rear end of each terminal accommodating chamber 14 opens to the rear end surface of the housing body 12. A partition wall 16 is formed inside the housing body 12 to partition the upper terminal accommodating chamber 14 and the lower terminal accommodating chamber 14.
  • the region in front of the partition wall 16 in the internal space of the housing body 12 is a substrate housing space 17 that opens in a horizontal slit shape on the front end surface of the housing body 12 (housing 11).
  • the substrate housing space 17 communicates with the front end portion of the upper terminal housing chamber 14 and the front end portion of the lower terminal housing chamber 14.
  • a circuit board 51 is inserted into the board housing space 17 from the front of the housing 11.
  • a communication chamber 18 is formed on the rear side of the partition wall portion 16 in the housing main body 12 so as to communicate the rear end portions of the terminal accommodating chambers 14 that form a pair in the vertical direction.
  • the rear end of the communication chamber 18 opens to the rear end surface of the housing 11, similarly to the rear end of the terminal accommodating chamber 14.
  • the rear end of the communication chamber 18 is closed by the rear holder 13.
  • the rear holder 13 is assembled to the housing body 12 so as not to be easily detached or relatively displaced.
  • the front surface of the rear holder 13 (the surface facing the communication chamber 18) serves as a receiving surface 19 with which a rear end of a separation regulating member 40 described later comes into contact.
  • the side view shape of the receiving surface 19 is an arc surface.
  • the terminal fitting 20 has an elongated shape in the front-rear direction as a whole.
  • a rectangular tube-shaped terminal body 21 is formed on the front end side portion of the terminal fitting 20.
  • the terminal body portion 21 includes a board portion 22 having a horizontally oriented plate surface, a pair of left and right side plate portions 23 extending substantially at right angles from left and right side edges of the board portion 22, and an extending edge of one side plate portion 23.
  • a counter plate portion 24 extending substantially in parallel with the substrate portion 22.
  • the counter plate portion 24 is formed with a contact portion 25 having a part bulged outward in a spherical shape.
  • the contact portion 25 is not elastically displaced relative to the terminal body portion 21 and maintains a certain positional relationship with the terminal body portion 21.
  • the contact portion 25 is configured to elastically contact a substrate side contact (not shown) of the circuit board 51.
  • the terminal main body 21 is integrally provided with a front stop portion 26 (a holding portion described in claims) and a lance 27 (a holding portion described in claims) as means for holding a separation regulating member 40 described later in an attached state. Is formed.
  • the front stop part 26 is located behind the contact part 25 in the front-rear direction.
  • the base end portion of the front stop portion 26 is continuous with the substrate portion 22, and the front stop portion 26 has a form protruding from the substrate portion 22 into the terminal main body portion 21.
  • the lance 27 is arranged behind the front stop 26 in the front-rear direction.
  • the base end portion of the lance 27 is connected to the opposing plate portion 24, and the lance 27 is configured to extend obliquely forward from the opposing plate portion 24 to the inside of the terminal main body portion 21.
  • the lance 27 can be elastically deformed.
  • the rear end portion of the terminal fitting 20 is an open barrel-shaped crimping portion 28.
  • the crimping portion 28 includes a receiving plate portion 29 that is elongated in the front-rear direction, and caulking pieces 30 that extend from the left and right side edges of the receiving plate portion 29.
  • the receiving plate portion 29 is continuous with the substrate portion 22 of the terminal main body portion 21 in a flush manner.
  • a front end portion of the electric wire 31 is fixed to the crimping portion 28 so as to be conductive. In a state where the electric wire 31 and the crimping portion 28 are crimped, the crimping piece 30 and the electric wire 31 are located on the opposite side of the terminal main body portion 21 in the plate thickness direction of the substrate portion 22 and the receiving plate portion 29.
  • the separation regulating member 40 is arranged in parallel in the left-right direction so as to be along a connection edge 53 of the circuit board 51 described later, and a plurality of pairs of attachment portions 41 that are vertically opposed to each other, and a pair of attachment portions 41.
  • a symmetric portion having a connecting portion 42 for connecting the base end portions (rear end portions) of the first and second connecting portions 42 and a connecting portion 44 for connecting a plurality of connecting portions 42 arranged in the left-right direction along the connecting end edge portion 53.
  • the mounting portion 41 has a rectangular bar shape, and can be fitted into the terminal body portion 21 of the terminal fitting 20 without back and forth rattling.
  • a concave portion 43 (holding portion described in claims) is formed on an opposing surface of the attachment portion 41 that faces the opposite attachment portion 41 that forms a pair.
  • the connecting portion 42 has a substantially semicircular arc bar shape.
  • the separation regulating member 40 is made of a material having at least a region in contact with the terminal fitting 20 having electrical insulation.
  • the entire separation regulating member 40 may be formed of an elastic ceramic or a synthetic resin material, or an insulating coating may be formed on the surface of a metal base.
  • spacing control member 40 can be elastically bent in the form that the space
  • the circuit board 51 has printed circuits (not shown) printed on both upper and lower surfaces (both front and back surfaces).
  • the circuit board 51 is integrated with a synthetic resin board holding member 52 by insert molding.
  • a front end edge of the circuit board 51 in the insertion direction into the board housing space 17 is a connection end edge 53 protruding from the board holding member 52 in a rib shape.
  • a plurality of board-side contacts (not shown) constituting the printed circuit are inserted on the upper and lower surfaces of the connecting edge 53 so as to correspond to the terminal accommodating chamber 14 in the left-right direction (that is, inserted into the terminal accommodating chamber 14).
  • the same arrangement pitch as the terminal fittings 20 is arranged.
  • the circuit board 51 is inserted into the board housing space 17 from the front of the housing 11 with the connection edge 53 facing forward.
  • the harness-side connector 10 is assembled as follows. First, the electric wire 31 is crimped to the crimping portion 28 of the terminal fitting 20 so as to be conductive. In the crimped state, the crimped portion 28 and the electric wire 31 are in a positional relationship with respect to the terminal main body portion 21 of the terminal fitting 20 so as to be displaced stepwise up and down with the substrate portion 22 and the receiving plate portion 29 as a boundary. Therefore, neither the crimping part 28 nor the electric wire 31 exists behind the terminal body part 21.
  • the terminal main body portions 21 that make a pair from the front are individually fitted onto the attachment portion 41 of the separation regulating member 40.
  • the terminal fittings 20 that are vertically opposed to each other have a positional relationship such that their contact portions 25 (opposing plate portions 24) are opposed to each other in the vertical direction, that is, a vertically symmetrical positional relationship.
  • a pair of mounting portions 41 that are vertically opposed to each other are inserted into the paired terminal body portions 21, and the front end portions of the mounting portions 41 are accommodated in the rear end portions of the terminal body portions 21.
  • the front end of the mounting portion 41 abuts against the front stop portion 26, so that the mounting portion 41 is relatively displaced forward relative to the terminal main body portion 21. Be regulated.
  • the lance 27 interferes with the attachment portion 41 and elastically bends.
  • the elastically restored lance 27 is locked in the recess 43, so that the mounting portion 41 is relatively displaced rearward with respect to the terminal body portion 21. (In other words, disconnection from the terminal body 21) is restricted.
  • the attachment portion 41 and the terminal main body portion 21 are attached in a state where relative displacement in the front-rear direction is restricted.
  • the attachment portion 41 and the terminal body portion 21 are also restricted in relative displacement in the vertical direction and the left-right direction. ing. Therefore, the attachment portion 41 and the terminal main body portion 21 (terminal fitting 20) are fitted so that they can be integrally displaced in the vertical direction.
  • the receiving plate portion 29 of the crimping portion 28 is in contact with the surface of a part of the outer surface of the mounting portion 41, the vertical direction of the mounting portion 41 and the terminal main body 21 is also affected by the contact with the surface. The relative displacement to is restricted.
  • the separation regulating member 40 is not elastically deformed, and the minimum vertical distance between the contact portions 25 of the pair of terminal fittings 20 is smaller than the thickness of the circuit board 51.
  • the separation regulating member 40 and the plurality of pairs of terminal fittings 20 integrated in this way are attached to the inside of the housing main body 12 from behind with one action.
  • the upper terminal fitting 20 and the mounting portion 41 are inserted into the upper terminal accommodating chamber 14, and the lower terminal fitting 20 and the mounting portion 41 are inserted into the lower terminal accommodating chamber 14. Further, the connecting portion 42 and the connecting portion 44 are accommodated in the communication chamber 18.
  • the separation regulating member 40 is elastically bent in such a manner that the attachment portions 41 forming a pair thereof are expanded vertically, as shown in FIG.
  • the rear end portion of the opposing plate portion 24 of the terminal main body portion 21 contacts the front end edge of the partition wall portion 16.
  • the upper and lower contact portions 25 are not extremely close to each other and the contact portions 25 are not directly in contact with each other, and the circuit board 51 can enter between the upper and lower contact portions 25. An interval is secured. Further, the separation regulating member 40 does not directly contact the housing body 12 made of synthetic resin.
  • the front end of the terminal fitting 20 is stopped in front by the front wall portion 15.
  • the terminal metal member 20 and the separation restricting member 40 are restricted from relative displacement forward with respect to the housing body 12.
  • the connecting portion 42 and the connecting portion 44 are not in contact with the partition wall portion 16.
  • the rear holder 13 is assembled to the rear end portion of the housing main body 12 to close the opening at the rear end of the communication chamber 18.
  • the receiving surface 19 is in a state of facing or abutting in close proximity to the connecting portion 42 and the rear end surface of the connecting portion 44.
  • the terminal metal member 20 and the separation restricting member 40 are restricted from relative rearward displacement with respect to the housing body 12.
  • the assembly of the housing 11 and the assembly of the terminal fitting 20 and the separation regulating member 40 to the housing 11 are completed.
  • the connection edge 53 of the circuit board 51 is inserted into the board housing space 17 from the front of the housing 11.
  • the connecting edge 53 interferes with the upper and lower contact portions 25, and the paired terminal fitting 20 and the mounting portion 41 are displaced so as to expand up and down.
  • the separation regulating member 40 is elastically bent.
  • the contact portion 25 of the lower terminal fitting 20 is elastically contacted to the board-side contact on the lower surface side of the circuit board 51.
  • the plurality of pairs of terminal fittings 20 arranged vertically symmetrically sandwich the circuit board 51 in the vertical direction (the board thickness direction of the circuit board 51) and are connected to the circuit board 51 so as to be conductive.
  • the card edge connector A includes the housing 11 made of synthetic resin, a plurality of pairs of terminal fittings 20 that are opposed to each other in the vertical direction, and the separation regulating member 40.
  • the housing 11 is formed with a substrate housing space 17 into which the circuit board 51 is inserted.
  • the terminal fitting 20 has a contact portion 25 that can come into contact with the circuit board 51, and is attached to the housing 11 so that the contact portion 25 faces the board housing space 17.
  • the separation regulating member 40 has a function of connecting the pair of terminal fittings 20 with the circuit board 51 interposed therebetween and regulating relative displacement of the paired terminal fittings 20 in a direction away from the circuit board 51. is there.
  • the separation regulating member 40 is a single part having a plurality of pairs of attachment portions 41, a plurality of connecting portions 42, and a plurality of connecting portions 44.
  • the plurality of pairs of attachment portions 41 are arranged in parallel on the left and right along the connection edge 53 of the circuit board 51, and form a pair opposite to each other in the vertical direction.
  • the one connecting portion 42 connects the base end portions of the mounting portions 41 that are opposed to each other in the vertical direction.
  • the plurality of connecting portions 44 connect the plurality of connecting portions 42 arranged side by side along the connection edge 53 of the circuit board 51.
  • the attaching part 41 which makes a pair facing up and down is separately attached to the terminal metal fitting 20 which makes a pair on both sides of the circuit board 51, and the terminal metal fitting 20 which makes a pair goes away from the circuit board 51.
  • the relative displacement is restricted.
  • the card edge connector A restricts the terminal fitting 20 and the circuit board 51 from moving away by the separation restricting member 40. Therefore, when the contact portion 25 of the terminal fitting 20 is in elastic contact with the circuit board 51, the reaction force acting on the terminal fitting 20 from the circuit board 51 side does not act on the housing 11. As a result, even when relative displacement occurs between the housing 11 and the circuit board 51 due to factors such as vibration or thermal deformation, the terminal fitting 20 moves following the circuit board 51, so that it slides on the contact portion 25. Movement is unlikely to occur. In addition, even when the housing 11 is deformed such as sagging or thermal expansion, a predetermined contact pressure is ensured between the terminal fitting 20 and the circuit board 51.
  • the contact reliability between the terminal fitting 20 and the circuit board 51 is excellent.
  • the separation regulating member 40 is a single component, a plurality of pairs of terminal fittings 20 can be attached to the housing 11 with one action.
  • the number of parts can be reduced as compared with a configuration in which the connecting portion 44 is not connected.
  • the terminal fitting 20 has a terminal main body portion 21 that is attached in a state in which relative displacement is restricted with respect to the attachment portion 41, and the contact portion 25 is formed in a form in which relative displacement is restricted with respect to the terminal main body portion 21.
  • spacing control member 40 can be elastically deformed in the form which makes the space
  • the terminal fitting 20 and the attachment portion 41 are formed with holding portions (the front stop portion 26, the lance 27, and the concave portion 43) that hold the attachment portion 41 in a state of being attached to the terminal fitting 20. According to this configuration, the terminal fitting 20 and the separation regulating member 40 can be held in the attached state outside the housing 11, so that the terminal fitting 20 and the separation regulating member 40 can be attached to the housing 11 with one action. it can.
  • the separation regulating member 40 is made of a material having at least a region in contact with the terminal fitting 20 as an insulating means for holding the pair of terminal fittings 20 in an insulated state.
  • the terminal metal fittings 20 arranged in parallel along the front or back surface of the circuit board 51 can be kept in an electrically insulated state between the upper and lower terminal metal fittings 20.
  • a pair of attachment portions are individually attached to a pair of terminal fittings sandwiching a circuit board in the plate thickness direction, but one terminal of the paired terminal fittings.
  • One attachment portion may be attached to the metal fitting, and the other attachment portion may be locked to the circuit board.
  • a terminal metal separation regulating member located on the front surface side of the circuit board and a terminal metal separation regulating member located on the back surface side of the circuit board may be used.
  • the contact portion is formed so as not to be displaced relative to the terminal body portion, and the separation regulating member can be elastically deformed so as to widen the distance between the pair of attachment portions.
  • the present invention is not limited to this, and the contact portion may be elastically displaced relative to the terminal main body portion, and the separation regulating member may not be elastically deformed. The relative displacement may be achieved, and the separation regulating member may be elastically deformable.
  • the terminal fitting and the attachment portion are formed with a holding portion having a shape and structure for holding the attachment portion in a state of being attached to the terminal fitting. Instead, the attachment portion and the terminal fitting may be held in an attached state by means such as press-fitting or adhesion.
  • a ... Card edge connector 11 ... Housing 17 ... Board housing space 20 ... Terminal fitting 21 ... Terminal body 25 ... Contact part 26 ... Front stop (holding part) 27 ... Lance (holding part) 40: separation regulating member 41 ... mounting portion 42 ... coupling portion 43 ... concave portion (holding portion) 44 ... Connecting part 51 ... Circuit board

Abstract

The invention secures the reliability of contact between a terminal metal piece and a circuit board. The card edge connector (A) comprises: a synthetic resin housing (11) wherein a board housing space (17) for inserting the circuit board (51) has been formed; terminal metal pieces (20), each having a contact portion (25) capable of establishing contact with the circuit board (51), mounted in the housing (11) in such a manner that the contact portions (25) face the board housing space (17); and a spacing restraint member (40) including in a single body a pair of mounting parts (41) and a linking part (42) which links the base end portions of the pair of mounting parts (41) to one another. The pair of mounting parts (41) are mounted individually onto the pair of terminal metal pieces (20) across the circuit board (51), thereby restricting the relative displacement of the terminal metal pieces (20) in a direction parting from the circuit board (51).

Description

カードエッジコネクタCard edge connector
　本発明は、カードエッジコネクタに関するものである。 The present invention relates to a card edge connector.
　特許文献１には、基板収容空間を有するハウジングと、ハウジング内に収容された複数の端子金具とを備えたカードエッジコネクタが開示されている。複数の端子金具は基板収容空間を挟んで対向するように配置されている。基板収容空間に回路基板が挿入されると、端子金具に設けた接点部が回路基板に対して弾性的に当接する。この接点部の弾性的な当接作用により、端子金具と回路基板との間では所定の接触圧が確保される。したがって、接点部が弾性的に回路基板に当接する構造は、端子金具と回路基板との接触信頼性確保のために必要である。 Patent Document 1 discloses a card edge connector provided with a housing having a board housing space and a plurality of terminal fittings housed in the housing. The plurality of terminal fittings are arranged so as to face each other with the board housing space interposed therebetween. When the circuit board is inserted into the board housing space, the contact portion provided on the terminal fitting elastically contacts the circuit board. A predetermined contact pressure is secured between the terminal fitting and the circuit board by the elastic contact action of the contact portion. Therefore, a structure in which the contact portion elastically contacts the circuit board is necessary for ensuring contact reliability between the terminal fitting and the circuit board.
特開２００８－０９１０４７号公報JP 2008-091047 A
　接点部が回路基板に対して弾性的に当接した状態では、回路基板側から端子金具に対して弾性的な反力が作用する。そして、端子金具に作用する弾性的な反力は、ハウジングの内壁部によって受け止められる。ところが、ハウジングと回路基板との間に振動または熱変形などの要因により相対的な変位が生じた場合、端子金具はハウジングに追従して動くことから、接点部に摺動が生じ、接触信頼性を損なう虞がある。また、ハウジングは、合成樹脂製であるため弾性的な反力を受け続けるとへたりを生じて塑性変形することが懸念される。ハウジングの塑性変形は、端子金具と回路基板との間の接触圧を低下させる原因となり得る。また、周囲が高温になる環境下でカードエッジコネクタが使用された場合には、ハウジングの熱膨張によって、端子金具と回路基板との間の接触圧が低下する虞がある。接触圧の低下は接触信頼性の低下を引き起こす。 In the state where the contact portion is in elastic contact with the circuit board, an elastic reaction force acts on the terminal fitting from the circuit board side. And the elastic reaction force which acts on a terminal metal fitting is received by the inner wall part of a housing. However, when relative displacement occurs between the housing and the circuit board due to factors such as vibration or thermal deformation, the terminal fittings move following the housing, causing sliding at the contact point and contact reliability. There is a risk of damage. Further, since the housing is made of synthetic resin, there is a concern that if the housing continues to receive an elastic reaction force, it will sag and plastically deform. The plastic deformation of the housing can cause a decrease in contact pressure between the terminal fitting and the circuit board. Further, when the card edge connector is used in an environment where the surroundings are at a high temperature, the contact pressure between the terminal fitting and the circuit board may decrease due to thermal expansion of the housing. A decrease in contact pressure causes a decrease in contact reliability.
　本発明は上記のような事情に基づいて完成されたものであって、端子金具と回路基板の接触信頼性を確保することを目的とする。 The present invention has been completed based on the above situation, and an object thereof is to ensure the contact reliability between the terminal fitting and the circuit board.
　本発明のカードエッジコネクタは、
　回路基板を挿入するための基板収容空間が形成された合成樹脂製のハウジングと、
　前記回路基板と接触可能な接点部を有し、前記接点部を前記基板収容空間に臨ませるように前記ハウジングに取り付けられた端子金具と、
　前記回路基板を挟んで対をなす前記端子金具同士を連結し、前記対をなす端子金具同士が前記回路基板から遠ざかる方向へ相対変位することを規制する離間規制部材とを備えているところに特徴を有する。 The card edge connector of the present invention is
A synthetic resin housing in which a board housing space for inserting a circuit board is formed;
A contact part that can contact the circuit board, and a terminal fitting attached to the housing so that the contact part faces the board housing space;
The terminal fittings that are paired with the circuit board interposed therebetween are connected to each other, and a separation regulating member that regulates relative displacement of the paired terminal fittings in a direction away from the circuit board. Have
　離間規制部材によって端子金具と回路基板とが遠ざかることを規制しているので、端子金具とハウジングとの間には反力が作用しない。これにより、ハウジングと回路基板との間に振動または熱変形などの要因により相対的な変位が生じた場合でも、端子金具は回路基板に追従して動くので、端子金具の接点部では摺動が生じ難く、接触信頼性に優れている。また、端子金具の接点部が回路基板に弾性的に当接しているときに、回路基板側から端子金具に作用する反力が、ハウジングに作用することはない。したがって、ハウジングがへたりや熱膨張等の変形を生じても、端子金具と回路基板との間では、所定の接触圧が確保されるので接触信頼性に優れている。 Since the separation member restricts the terminal metal and the circuit board from moving away, no reaction force acts between the terminal metal and the housing. As a result, even when relative displacement occurs between the housing and the circuit board due to factors such as vibration or thermal deformation, the terminal fitting moves following the circuit board. It is hard to occur and has excellent contact reliability. Further, when the contact portion of the terminal fitting is in elastic contact with the circuit board, the reaction force acting on the terminal fitting from the circuit board side does not act on the housing. Therefore, even if the housing is deformed such as sagging or thermal expansion, a predetermined contact pressure is ensured between the terminal fitting and the circuit board, so that contact reliability is excellent.
実施例１のカードエッジコネクタにおいて、基板収容空間に回路基板を挿入した状態をあらわす断面図Sectional drawing showing the state which inserted the circuit board in the board | substrate accommodation space in the card edge connector of Example 1. FIG. 基板収容空間に回路基板を挿入していない状態をあらわす断面図Sectional view showing the state where the circuit board is not inserted into the board housing space
　本発明のカードエッジコネクタは、前記離間規制部材が、対をなす取付部と、前記対をなす取付部の基端部同士を連結する連結部とを一体化した単一部品であり、前記対をなす取付部が前記対をなす端子金具に個別に取り付けられていてもよい。
　この構成によれば、対をなす端子金具同士を連結する離間規制部材が、単一部品なので、部品点数が少なくて済む。 In the card edge connector according to the present invention, the separation regulating member is a single part in which a pair of attachment portions and a connection portion that connects base ends of the pair of attachment portions are integrated. May be individually attached to the pair of terminal fittings.
According to this configuration, since the separation regulating member that couples the pair of terminal fittings is a single component, the number of components can be reduced.
　本発明のカードエッジコネクタは、前記離間規制部材は、前記回路基板に沿って並列配置された複数対の前記取付部と、前記対をなす取付部の基端部同士を連結する前記連結部と、複数の前記連結部同士を連結する繋ぎ部とを備えた単一部品であってもよい。
　この構成によれば、複数対の端子金具に対し、ワンアクションで離間規制部材を取り付けることが可能である。 In the card edge connector of the present invention, the separation regulating member includes a plurality of pairs of the mounting portions arranged in parallel along the circuit board, and the connecting portion that connects the base end portions of the pair of mounting portions. Moreover, the single component provided with the connection part which connects several said connection parts may be sufficient.
According to this configuration, the separation regulating member can be attached to the plurality of pairs of terminal fittings with one action.
　本発明のカードエッジコネクタは、前記端子金具が、前記取付部に対し相対変位を規制された状態で取り付けられる端子本体部を有し、前記接点部が前記端子本体部に対して相対変位を規制された形態で形成されており、前記離間規制部材は、前記対をなす取付部の間隔を広狭させるような形態で弾性変形し得るようになっていてもよい。
　この構成によれば、端子金具の接点部と回路基板との間の接触圧は、離間規制部材の弾力を利用することによって確保される。したがって、接点部が端子本体部に対して弾性的に相対変位可能な形態である場合に比べると、端子金具の形状を簡素化することができる。 The card edge connector of the present invention has a terminal main body portion to which the terminal fitting is attached in a state where relative displacement is restricted with respect to the attachment portion, and the contact portion restricts relative displacement with respect to the terminal main body portion. The separation regulating member may be elastically deformed in such a manner as to widen the interval between the pair of attachment portions.
According to this configuration, the contact pressure between the contact portion of the terminal fitting and the circuit board is ensured by using the elasticity of the separation regulating member. Therefore, the shape of the terminal fitting can be simplified as compared with the case where the contact portion is in a form that can be elastically displaced relative to the terminal body portion.
　本発明のカードエッジコネクタは、
　前記端子金具と前記取付部には、前記取付部を前記端子金具に取り付けた状態に保持する保持部が形成されていてもよい。
　この構成によれば、ハウジングの外部で端子金具と離間規制部材を取り付け状態に保持しておくことにより、端子金具と離間規制部材をワンアクションでハウジングに取り付けることができる。 The card edge connector of the present invention is
The terminal fitting and the attachment portion may be formed with a holding portion for holding the attachment portion attached to the terminal fitting.
According to this configuration, the terminal fitting and the separation regulating member can be attached to the housing in one action by holding the terminal fitting and the separation regulating member outside in the housing.
　本発明のカードエッジコネクタは、
　前記離間規制部材は、前記対をなす端子金具同士を絶縁状態に保持する絶縁手段を備えていてもよい。
　この構成によれば、対をなす端子金具が短絡する虞はない。 The card edge connector of the present invention is
The separation regulating member may include an insulating unit that holds the pair of terminal fittings in an insulated state.
According to this configuration, there is no possibility that the paired terminal fittings are short-circuited.
　＜実施例１＞
　以下、本発明を具体化した実施例１を図１～図２を参照して説明する。尚、以下の説明において、前後の方向については、図１，２における左方を前方と定義する。上下の方向については、図１，２にあらわれる向きを、そのまま上方、下方と定義する。 <Example 1>
A first embodiment embodying the present invention will be described below with reference to FIGS. In the following description, the left and right directions in FIGS. For the up and down directions, the directions shown in FIGS.
　本実施例１のカードエッジコネクタＡは、ハーネス側コネクタ１０と、基板側コネクタ５０とを備えている。ハーネス側コネクタ１０は、合成樹脂製のハウジング１１と、上下に対向する複数対の端子金具２０とを備えている。基板側コネクタ５０は、回路基板５１と、基板保持部材５２とを備えて構成されている。 The card edge connector A according to the first embodiment includes a harness side connector 10 and a board side connector 50. The harness side connector 10 includes a housing 11 made of a synthetic resin and a plurality of pairs of terminal fittings 20 that are vertically opposed to each other. The board-side connector 50 includes a circuit board 51 and a board holding member 52.
　ハウジング１１は、ハウジング本体１２と、ハウジング本体１２の後端部に組み付けられたリヤホルダ１３とを備えて構成されている。ハウジング本体１２の内部には、上下対称であり、且つ上下に対向して対をなす複数対の端子収容室１４が左右方向に所定ピッチで並列して形成されている。各端子収容室１４の前端には前壁部１５が形成されている。各端子収容室１４の後端は、ハウジング本体１２の後端面に開口している。ハウジング本体１２の内部には、上側の端子収容室１４と下側の端子収容室１４を区画する隔壁部１６が形成されている。 The housing 11 includes a housing main body 12 and a rear holder 13 assembled to the rear end portion of the housing main body 12. Inside the housing body 12, a plurality of pairs of terminal accommodating chambers 14 that are vertically symmetrical and that form a pair opposite to each other in the vertical direction are formed in parallel at a predetermined pitch in the left-right direction. A front wall portion 15 is formed at the front end of each terminal accommodating chamber 14. The rear end of each terminal accommodating chamber 14 opens to the rear end surface of the housing body 12. A partition wall 16 is formed inside the housing body 12 to partition the upper terminal accommodating chamber 14 and the lower terminal accommodating chamber 14.
　ハウジング本体１２の内部空間のうち隔壁部１６よりも前方の領域は、ハウジング本体１２（ハウジング１１）の前端面において水平なスリット状に開口する基板収容空間１７となっている。基板収容空間１７は、上側の端子収容室１４の前端部と下側の端子収容室１４の前端部とに連通している。基板収容空間１７には、ハウジング１１の前方から回路基板５１が挿入されるようになっている。 The region in front of the partition wall 16 in the internal space of the housing body 12 is a substrate housing space 17 that opens in a horizontal slit shape on the front end surface of the housing body 12 (housing 11). The substrate housing space 17 communicates with the front end portion of the upper terminal housing chamber 14 and the front end portion of the lower terminal housing chamber 14. A circuit board 51 is inserted into the board housing space 17 from the front of the housing 11.
　また、ハウジング本体１２の内部のうち隔壁部１６の後方には、上下で対をなす端子収容室１４の後端部同士を連通させる連通室１８が形成されている。連通室１８の後端は、端子収容室１４の後端と同様、ハウジング１１の後端面に開口している。そして、この連通室１８の後端は、リヤホルダ１３によって塞がれている。リヤホルダ１３は、ハウジング本体１２に対し、容易に離脱したり容易に相対変位しないように組み付けられている。また、リヤホルダ１３の前面（連通室１８に臨む面）は、後述する離間規制部材４０の後端を当接させる受け面１９となっている。受け面１９の側面視形状は、円弧面となっている。 Further, a communication chamber 18 is formed on the rear side of the partition wall portion 16 in the housing main body 12 so as to communicate the rear end portions of the terminal accommodating chambers 14 that form a pair in the vertical direction. The rear end of the communication chamber 18 opens to the rear end surface of the housing 11, similarly to the rear end of the terminal accommodating chamber 14. The rear end of the communication chamber 18 is closed by the rear holder 13. The rear holder 13 is assembled to the housing body 12 so as not to be easily detached or relatively displaced. The front surface of the rear holder 13 (the surface facing the communication chamber 18) serves as a receiving surface 19 with which a rear end of a separation regulating member 40 described later comes into contact. The side view shape of the receiving surface 19 is an arc surface.
　端子金具２０は、全体として前後方向に細長い形状をなす。端子金具２０の前端側部分には角筒状の端子本体部２１が形成されている。端子本体部２１は、板面を水平に向けた基板部２２と、基板部２２の左右両側縁から略直角に延出する左右一対の側板部２３と、一方の側板部２３の延出端縁から基板部２２と略平行に延出する対向板部２４とを有する。対向板部２４には、その一部を球面状に外側へ膨出させた形態の接点部２５が形成されている。接点部２５は、端子本体部２１に対して弾性的に相対変位することがなく、端子本体部２１と一定の位置関係を保つ。この接点部２５は、回路基板５１の基板側接点（図示省略）に対し弾性的に接触するようになっている。 The terminal fitting 20 has an elongated shape in the front-rear direction as a whole. A rectangular tube-shaped terminal body 21 is formed on the front end side portion of the terminal fitting 20. The terminal body portion 21 includes a board portion 22 having a horizontally oriented plate surface, a pair of left and right side plate portions 23 extending substantially at right angles from left and right side edges of the board portion 22, and an extending edge of one side plate portion 23. And a counter plate portion 24 extending substantially in parallel with the substrate portion 22. The counter plate portion 24 is formed with a contact portion 25 having a part bulged outward in a spherical shape. The contact portion 25 is not elastically displaced relative to the terminal body portion 21 and maintains a certain positional relationship with the terminal body portion 21. The contact portion 25 is configured to elastically contact a substrate side contact (not shown) of the circuit board 51.
　端子本体部２１には、後述する離間規制部材４０を取り付け状態に保持する手段として、前止まり部２６（請求項に記載の保持部）とランス２７（請求項に記載の保持部）とが一体に形成されている。前止まり部２６は、前後方向において接点部２５よりも後方に位置している。前止まり部２６の基端部は基板部２２に連なっており、前止まり部２６は、基板部２２から端子本体部２１の内部へ突出した形態である。ランス２７は、前後方向において、前止まり部２６よりも後方に配されている。ランス２７の基端部は対向板部２４に連なり、ランス２７は、対向板部２４から端子本体部２１の内部へ斜め前方に延出した形態である。ランス２７は、弾性変形し得るようになっている。 The terminal main body 21 is integrally provided with a front stop portion 26 (a holding portion described in claims) and a lance 27 (a holding portion described in claims) as means for holding a separation regulating member 40 described later in an attached state. Is formed. The front stop part 26 is located behind the contact part 25 in the front-rear direction. The base end portion of the front stop portion 26 is continuous with the substrate portion 22, and the front stop portion 26 has a form protruding from the substrate portion 22 into the terminal main body portion 21. The lance 27 is arranged behind the front stop 26 in the front-rear direction. The base end portion of the lance 27 is connected to the opposing plate portion 24, and the lance 27 is configured to extend obliquely forward from the opposing plate portion 24 to the inside of the terminal main body portion 21. The lance 27 can be elastically deformed.
　端子金具２０の後端側部分は、オープンバレル状の圧着部２８となっている。圧着部２８は、前後方向に細長い受け板部２９と、受け板部２９の左右両側縁から延出するカシメ片３０とを備えている。受け板部２９は、端子本体部２１の基板部２２に対して面一状に連続している。圧着部２８には、電線３１の前端部が導通可能に固着されている。電線３１と圧着部２８が圧着された状態では、カシメ片３０と電線３１が、基板部２２及び受け板部２９の板厚方向において、端子本体部２１とは反対側に位置している。 The rear end portion of the terminal fitting 20 is an open barrel-shaped crimping portion 28. The crimping portion 28 includes a receiving plate portion 29 that is elongated in the front-rear direction, and caulking pieces 30 that extend from the left and right side edges of the receiving plate portion 29. The receiving plate portion 29 is continuous with the substrate portion 22 of the terminal main body portion 21 in a flush manner. A front end portion of the electric wire 31 is fixed to the crimping portion 28 so as to be conductive. In a state where the electric wire 31 and the crimping portion 28 are crimped, the crimping piece 30 and the electric wire 31 are located on the opposite side of the terminal main body portion 21 in the plate thickness direction of the substrate portion 22 and the receiving plate portion 29.
　離間規制部材４０は、後述する回路基板５１の接続端縁部５３に沿うように左右方向に並列配置されて上下に対向して対をなす複数対の取付部４１と、対をなす取付部４１の基端部（後端部）同士を連結する連結部４２と、接続端縁部５３に沿うように左右方向に並ぶ複数の連結部４２同士を連結する繋ぎ部４４とを有する上下対称な単一部品である。取付部４１は、角棒状をなし、端子金具２０の端子本体部２１内に上下方向及び左右方向へのガタ付きなく嵌入し得るようになっている。取付部４１のうち対をなす反対側の取付部４１と対向する対向面には、凹部４３（請求項に記載の保持部）が形成されている。連結部４２は、略半円弧形の角棒状をなしている。 The separation regulating member 40 is arranged in parallel in the left-right direction so as to be along a connection edge 53 of the circuit board 51 described later, and a plurality of pairs of attachment portions 41 that are vertically opposed to each other, and a pair of attachment portions 41. A symmetric portion having a connecting portion 42 for connecting the base end portions (rear end portions) of the first and second connecting portions 42 and a connecting portion 44 for connecting a plurality of connecting portions 42 arranged in the left-right direction along the connecting end edge portion 53. One part. The mounting portion 41 has a rectangular bar shape, and can be fitted into the terminal body portion 21 of the terminal fitting 20 without back and forth rattling. A concave portion 43 (holding portion described in claims) is formed on an opposing surface of the attachment portion 41 that faces the opposite attachment portion 41 that forms a pair. The connecting portion 42 has a substantially semicircular arc bar shape.
　上下で対をなす端子金具２０は、後述するように回路基板５１の上面の基板側接点と下面の基板側接点とに接触するので、上下で対をなす端子金具２０間は、電気的に絶縁されている必要がある。このため、離間規制部材４０は、その少なくとも端子金具２０と接触する領域が電気的絶縁性を有する材料からなっている。具体的には、離間規制部材４０の全体が弾性セラミックスまたは合成樹脂材料で成形されていてもよく、金属製の母体の表面に絶縁被膜を形成したものでもよい。尚、合成樹脂材料を用いる場合は、クリープ耐性の強いものが望ましい。そして、離間規制部材４０は、上下で対をなす取付部４１の間隔が拡がったり狭まったりするような形態で弾性撓みし得るようになっている。 As will be described later, the upper and lower terminal fittings 20 are in contact with the board-side contact on the upper surface of the circuit board 51 and the substrate-side contact on the lower surface, so that the upper and lower terminal fittings 20 are electrically insulated from each other. Need to be. For this reason, the separation regulating member 40 is made of a material having at least a region in contact with the terminal fitting 20 having electrical insulation. Specifically, the entire separation regulating member 40 may be formed of an elastic ceramic or a synthetic resin material, or an insulating coating may be formed on the surface of a metal base. In addition, when using a synthetic resin material, a thing with strong creep tolerance is desirable. And the separation | spacing control member 40 can be elastically bent in the form that the space | interval of the attaching part 41 which makes a pair up and down expands or narrows.
　回路基板５１は、その上下両面（表裏両面）にプリント回路（図示省略）が印刷されたものである。回路基板５１は、インサート成形により合成樹脂製の基板保持部材５２と一体化されている。回路基板５１のうち基板収容空間１７への挿入方向における先端縁部は、基板保持部材５２からリブ状に突出した接続端縁部５３となっている。接続端縁部５３の上下両面には、プリント回路を構成する複数の基板側接点（図示省略）が、左右方向において端子収容室１４と対応するように（つまり、端子収容室１４に挿入された端子金具２０と同じ配列ピッチで）配されている。回路基板５１は、その接続端縁部５３を先に向けてハウジング１１の前方から基板収容空間１７内に挿入される。 The circuit board 51 has printed circuits (not shown) printed on both upper and lower surfaces (both front and back surfaces). The circuit board 51 is integrated with a synthetic resin board holding member 52 by insert molding. A front end edge of the circuit board 51 in the insertion direction into the board housing space 17 is a connection end edge 53 protruding from the board holding member 52 in a rib shape. A plurality of board-side contacts (not shown) constituting the printed circuit are inserted on the upper and lower surfaces of the connecting edge 53 so as to correspond to the terminal accommodating chamber 14 in the left-right direction (that is, inserted into the terminal accommodating chamber 14). The same arrangement pitch as the terminal fittings 20 is arranged. The circuit board 51 is inserted into the board housing space 17 from the front of the housing 11 with the connection edge 53 facing forward.
　次に、本実施例の作用を説明する。ハーネス側コネクタ１０の組付けは、次のようにして行われる。まず、端子金具２０の圧着部２８に電線３１を導通可能に圧着する。圧着状態では、圧着部２８と電線３１が、端子金具２０の端子本体部２１に対し基板部２２及び受け板部２９を境として上下に段差状にずれた位置関係となる。したがって、端子本体部２１の後方には、圧着部２８も電線３１も存在しない。 Next, the operation of this embodiment will be described. The harness-side connector 10 is assembled as follows. First, the electric wire 31 is crimped to the crimping portion 28 of the terminal fitting 20 so as to be conductive. In the crimped state, the crimped portion 28 and the electric wire 31 are in a positional relationship with respect to the terminal main body portion 21 of the terminal fitting 20 so as to be displaced stepwise up and down with the substrate portion 22 and the receiving plate portion 29 as a boundary. Therefore, neither the crimping part 28 nor the electric wire 31 exists behind the terminal body part 21.
　電線３１と端子金具２０を圧着した後は、離間規制部材４０の取付部４１に対し、その前方から対をなす端子本体部２１を個別に外嵌する。このとき、上下に対向して対をなす端子金具２０は、その接点部２５（対向板部２４）同士が上下に対向するような位置関係、つまり上下対称な位置関係となる。上下に対向して対をなす取付部４１は、夫々、対をなす端子本体部２１内に挿入され、取付部４１の前端部が端子本体部２１の後端部に収容される。 After the electric wire 31 and the terminal fitting 20 are crimped, the terminal main body portions 21 that make a pair from the front are individually fitted onto the attachment portion 41 of the separation regulating member 40. At this time, the terminal fittings 20 that are vertically opposed to each other have a positional relationship such that their contact portions 25 (opposing plate portions 24) are opposed to each other in the vertical direction, that is, a vertically symmetrical positional relationship. A pair of mounting portions 41 that are vertically opposed to each other are inserted into the paired terminal body portions 21, and the front end portions of the mounting portions 41 are accommodated in the rear end portions of the terminal body portions 21.
　取付部４１を端子本体部２１に正しく挿入（収容）した状態では、取付部４１の前端が前止まり部２６に当接することにより、取付部４１が端子本体部２１に対して前方への相対変位を規制される。また、取付部４１が端子本体部２１に対して半挿入の状態では、ランス２７が取付部４１と干渉して弾性撓みする。そして、取付部４１が端子本体部２１に対し正しく挿入された状態では、弾性復帰したランス２７が凹部４３に係止することで、取付部４１が端子本体部２１に対して後方への相対変位（つまり、端子本体部２１からの抜け）を規制される。 In a state where the mounting portion 41 is correctly inserted (accommodated) in the terminal main body portion 21, the front end of the mounting portion 41 abuts against the front stop portion 26, so that the mounting portion 41 is relatively displaced forward relative to the terminal main body portion 21. Be regulated. In addition, when the attachment portion 41 is half inserted into the terminal body portion 21, the lance 27 interferes with the attachment portion 41 and elastically bends. When the mounting portion 41 is correctly inserted into the terminal body portion 21, the elastically restored lance 27 is locked in the recess 43, so that the mounting portion 41 is relatively displaced rearward with respect to the terminal body portion 21. (In other words, disconnection from the terminal body 21) is restricted.
　以上により、取付部４１と端子本体部２１が、前後方向における相対変位を規制された状態に取り付けられる。また、角棒状の取付部４１は角筒状の端子本体部２１内にがたつきなく嵌入されるので、取付部４１と端子本体部２１は、上下方向及び左右方向への相対変位も規制されている。したがって、取付部４１と端子本体部２１（端子金具２０）は、一体的に上下方向へ変位し得るように嵌合されている。また、取付部４１の外面の一部には、圧着部２８の受け板部２９が面当たり状態で当接しているので、この面当たり接触によっても、取付部４１と端子本体部２１の上下方向への相対変位が規制されている。 As described above, the attachment portion 41 and the terminal main body portion 21 are attached in a state where relative displacement in the front-rear direction is restricted. In addition, since the square bar-shaped attachment portion 41 is fitted into the rectangular tube-shaped terminal body portion 21 without rattling, the attachment portion 41 and the terminal body portion 21 are also restricted in relative displacement in the vertical direction and the left-right direction. ing. Therefore, the attachment portion 41 and the terminal main body portion 21 (terminal fitting 20) are fitted so that they can be integrally displaced in the vertical direction. Further, since the receiving plate portion 29 of the crimping portion 28 is in contact with the surface of a part of the outer surface of the mounting portion 41, the vertical direction of the mounting portion 41 and the terminal main body 21 is also affected by the contact with the surface. The relative displacement to is restricted.
　上記のようにして離間規制部材４０と上下に対向して対をなす複数対の端子金具２０とが組み付けられて一体化される。組付け状態では、離間規制部材４０は弾性変形しておらず、対をなす端子金具２０の接点部２５同士の最小上下間隔が、回路基板５１の板厚寸法よりも小さい寸法となっている。このように一体化された離間規制部材４０と複数対の端子金具２０は、後方からワンアクションでハウジング本体１２内に取り付けられる。そして、上側の端子金具２０と取付部４１は上側の端子収容室１４内に挿入され、下側の端子金具２０と取付部４１は下側の端子収容室１４内に挿入される。また、連結部４２と繋ぎ部４４は連通室１８内に収容される。 As described above, the plurality of pairs of terminal fittings 20 that are opposed to each other in the vertical direction are assembled and integrated. In the assembled state, the separation regulating member 40 is not elastically deformed, and the minimum vertical distance between the contact portions 25 of the pair of terminal fittings 20 is smaller than the thickness of the circuit board 51. The separation regulating member 40 and the plurality of pairs of terminal fittings 20 integrated in this way are attached to the inside of the housing main body 12 from behind with one action. The upper terminal fitting 20 and the mounting portion 41 are inserted into the upper terminal accommodating chamber 14, and the lower terminal fitting 20 and the mounting portion 41 are inserted into the lower terminal accommodating chamber 14. Further, the connecting portion 42 and the connecting portion 44 are accommodated in the communication chamber 18.
　端子金具２０と離間規制部材４０をハウジング本体１２に取り付けた状態では、離間規制部材４０がその対をなす取付部４１同士を上下に拡げるような形態で弾性撓みし、図２に示すように、端子本体部２１の対向板部２４の後端部が隔壁部１６の前端縁に当接する。これにより、上下の接点部２５同士が極端に接近したり、接点部２５同士が直接的に当接したりすることがなく、上下の接点部２５同士の間には、回路基板５１の進入を可能にする間隔が確保されている。また、離間規制部材４０が合成樹脂製のハウジング本体１２に直接接触することはない。 In a state where the terminal fitting 20 and the separation regulating member 40 are attached to the housing main body 12, the separation regulating member 40 is elastically bent in such a manner that the attachment portions 41 forming a pair thereof are expanded vertically, as shown in FIG. The rear end portion of the opposing plate portion 24 of the terminal main body portion 21 contacts the front end edge of the partition wall portion 16. Thereby, the upper and lower contact portions 25 are not extremely close to each other and the contact portions 25 are not directly in contact with each other, and the circuit board 51 can enter between the upper and lower contact portions 25. An interval is secured. Further, the separation regulating member 40 does not directly contact the housing body 12 made of synthetic resin.
　端子金具２０と離間規制部材４０をハウジング本体１２内に収容すると、端子金具２０の前端は前壁部１５により前止まりされる。これにより、端子金具２０と離間規制部材４０は、ハウジング本体１２に対して前方への相対変位を規制される。このとき、連結部４２と繋ぎ部４４は、隔壁部１６には接触していない。端子金具２０と離間規制部材４０をハウジング本体１２内に収容したら、ハウジング本体１２の後端部にリヤホルダ１３を組付け、連通室１８の後端の開口を塞ぐ。リヤホルダ１３をハウジング本体１２に取り付けると、受け面１９が、連結部４２と繋ぎ部４４の後端面に対し近接して対向又は当接した状態となる。これにより、端子金具２０と離間規制部材４０は、ハウジング本体１２に対して後方への相対変位を規制される。 When the terminal fitting 20 and the separation regulating member 40 are accommodated in the housing body 12, the front end of the terminal fitting 20 is stopped in front by the front wall portion 15. As a result, the terminal metal member 20 and the separation restricting member 40 are restricted from relative displacement forward with respect to the housing body 12. At this time, the connecting portion 42 and the connecting portion 44 are not in contact with the partition wall portion 16. When the terminal fitting 20 and the separation regulating member 40 are accommodated in the housing main body 12, the rear holder 13 is assembled to the rear end portion of the housing main body 12 to close the opening at the rear end of the communication chamber 18. When the rear holder 13 is attached to the housing body 12, the receiving surface 19 is in a state of facing or abutting in close proximity to the connecting portion 42 and the rear end surface of the connecting portion 44. As a result, the terminal metal member 20 and the separation restricting member 40 are restricted from relative rearward displacement with respect to the housing body 12.
　以上により、ハウジング１１の組み付けと、ハウジング１１に対する端子金具２０及び離間規制部材４０の組付けが完了する。この後、ハウジング１１の前方から回路基板５１の接続端縁部５３を基板収容空間１７内に挿入する。挿入過程では、接続端縁部５３が上下両接点部２５と干渉し、対をなす端子金具２０と取付部４１を上下に拡開するように変位させる。これに伴い、離間規制部材４０が弾性撓みする。そして、回路基板５１が基板収容空間１７内に正しく挿入された状態では、離間規制部材４０の弾性復元力により、上側の端子金具２０の接点部２５が、回路基板５１の上面側の基板側接点に対して弾性的に当接し、下側の端子金具２０の接点部２５が、回路基板５１の下面側の基板側接点に対して弾性的に当接する。これにより、上下対称に配された複数対の端子金具２０が、回路基板５１を上下方向（回路基板５１の板厚方向）に挟み、回路基板５１と導通可能に接続される。 Thus, the assembly of the housing 11 and the assembly of the terminal fitting 20 and the separation regulating member 40 to the housing 11 are completed. Thereafter, the connection edge 53 of the circuit board 51 is inserted into the board housing space 17 from the front of the housing 11. In the insertion process, the connecting edge 53 interferes with the upper and lower contact portions 25, and the paired terminal fitting 20 and the mounting portion 41 are displaced so as to expand up and down. Accordingly, the separation regulating member 40 is elastically bent. When the circuit board 51 is correctly inserted into the board housing space 17, the contact portion 25 of the upper terminal fitting 20 is brought into contact with the board-side contact on the upper surface side of the circuit board 51 by the elastic restoring force of the separation regulating member 40. The contact portion 25 of the lower terminal fitting 20 is elastically contacted to the board-side contact on the lower surface side of the circuit board 51. As a result, the plurality of pairs of terminal fittings 20 arranged vertically symmetrically sandwich the circuit board 51 in the vertical direction (the board thickness direction of the circuit board 51) and are connected to the circuit board 51 so as to be conductive.
　上述のように本実施例１のカードエッジコネクタＡは、合成樹脂製のハウジング１１と、上下に対向して対をなす複数対の端子金具２０と、離間規制部材４０とを有する。ハウジング１１には、回路基板５１を挿入するための基板収容空間１７が形成されている。端子金具２０は、回路基板５１と接触可能な接点部２５を有し、接点部２５を基板収容空間１７に臨ませるようにハウジング１１に取り付けられている。 As described above, the card edge connector A according to the first embodiment includes the housing 11 made of synthetic resin, a plurality of pairs of terminal fittings 20 that are opposed to each other in the vertical direction, and the separation regulating member 40. The housing 11 is formed with a substrate housing space 17 into which the circuit board 51 is inserted. The terminal fitting 20 has a contact portion 25 that can come into contact with the circuit board 51, and is attached to the housing 11 so that the contact portion 25 faces the board housing space 17.
　離間規制部材４０は、回路基板５１を挟んで対をなす端子金具２０同士を連結し、対をなす端子金具２０同士が回路基板５１から遠ざかる方向へ相対変位することを規制する機能を有するものである。具体的には、離間規制部材４０は、複数対の取付部４１と、複数の連結部４２と、複数の繋ぎ部４４とを有する単一部品である。複数対の取付部４１は、回路基板５１の接続端縁部５３に沿って左右に並列配置され、且つ上下に対向して対をなす。 The separation regulating member 40 has a function of connecting the pair of terminal fittings 20 with the circuit board 51 interposed therebetween and regulating relative displacement of the paired terminal fittings 20 in a direction away from the circuit board 51. is there. Specifically, the separation regulating member 40 is a single part having a plurality of pairs of attachment portions 41, a plurality of connecting portions 42, and a plurality of connecting portions 44. The plurality of pairs of attachment portions 41 are arranged in parallel on the left and right along the connection edge 53 of the circuit board 51, and form a pair opposite to each other in the vertical direction.
　１つの連結部４２は、上下に対向して対をなす取付部４１の基端部同士を連結する。複数の繋ぎ部４４は、回路基板５１の接続端縁部５３に沿って左右に並ぶ複数の連結部４２同士を、連結する。そして、上下に対向して対をなす取付部４１が、回路基板５１を挟んで対をなす端子金具２０に個別に取り付けられることで、対をなす端子金具２０は、回路基板５１から遠ざかる方向へ相対変位することを規制される。 The one connecting portion 42 connects the base end portions of the mounting portions 41 that are opposed to each other in the vertical direction. The plurality of connecting portions 44 connect the plurality of connecting portions 42 arranged side by side along the connection edge 53 of the circuit board 51. And the attaching part 41 which makes a pair facing up and down is separately attached to the terminal metal fitting 20 which makes a pair on both sides of the circuit board 51, and the terminal metal fitting 20 which makes a pair goes away from the circuit board 51. The relative displacement is restricted.
　このように本実施例１のカードエッジコネクタＡは、離間規制部材４０によって端子金具２０と回路基板５１とが遠ざかることを規制している。したがって、端子金具２０の接点部２５が回路基板５１に弾性的に当接しているときに、回路基板５１側から端子金具２０に作用する反力が、ハウジング１１に作用することはない。これにより、ハウジング１１と回路基板５１との間に振動または熱変形などの要因により相対的な変位が生じた場合でも、端子金具２０は回路基板５１に追従して動くので、接点部２５に摺動は生じ難い。また、ハウジング１１がへたりや熱膨張等の変形を生じても、端子金具２０と回路基板５１との間では所定の接触圧が確保される。このように本実施例１のカードエッジコネクタＡによれば、端子金具２０と回路基板５１との間の接触信頼性に優れている。また、離間規制部材４０は、単一部品なので、複数対の端子金具２０をワンアクションでハウジング１１に取り付けることができる。また、繋ぎ部４４で連結しない形態のものに比べると、部品点数を減らすことができる。 As described above, the card edge connector A according to the first embodiment restricts the terminal fitting 20 and the circuit board 51 from moving away by the separation restricting member 40. Therefore, when the contact portion 25 of the terminal fitting 20 is in elastic contact with the circuit board 51, the reaction force acting on the terminal fitting 20 from the circuit board 51 side does not act on the housing 11. As a result, even when relative displacement occurs between the housing 11 and the circuit board 51 due to factors such as vibration or thermal deformation, the terminal fitting 20 moves following the circuit board 51, so that it slides on the contact portion 25. Movement is unlikely to occur. In addition, even when the housing 11 is deformed such as sagging or thermal expansion, a predetermined contact pressure is ensured between the terminal fitting 20 and the circuit board 51. Thus, according to the card edge connector A of the first embodiment, the contact reliability between the terminal fitting 20 and the circuit board 51 is excellent. Moreover, since the separation regulating member 40 is a single component, a plurality of pairs of terminal fittings 20 can be attached to the housing 11 with one action. In addition, the number of parts can be reduced as compared with a configuration in which the connecting portion 44 is not connected.
　また、端子金具２０は、取付部４１に対し相対変位を規制された状態で取り付けられる端子本体部２１を有し、接点部２５が端子本体部２１に対して相対変位を規制された形態で形成されている。そして、離間規制部材４０は、対をなす取付部４１の間隔を広狭させるような形態で弾性変形し得るようになっている。この構成によれば、端子金具２０の接点部２５と回路基板５１との間の接触圧は、離間規制部材４０の弾力を利用することによって確保される。したがって、接点部２５が端子本体部２１に対して弾性的に相対変位可能な形態である場合に比べると、端子金具２０の形状を簡素化することができる。 Further, the terminal fitting 20 has a terminal main body portion 21 that is attached in a state in which relative displacement is restricted with respect to the attachment portion 41, and the contact portion 25 is formed in a form in which relative displacement is restricted with respect to the terminal main body portion 21. Has been. And the separation | spacing control member 40 can be elastically deformed in the form which makes the space | interval of the attaching part 41 which makes a pair wide. According to this configuration, the contact pressure between the contact portion 25 of the terminal fitting 20 and the circuit board 51 is ensured by using the elasticity of the separation regulating member 40. Therefore, the shape of the terminal fitting 20 can be simplified as compared with the case where the contact portion 25 has a form that can be elastically displaced relative to the terminal main body portion 21.
　また、端子金具２０と取付部４１には、取付部４１を前記端子金具２０に取り付けた状態に保持する保持部（前止まり部２６、ランス２７、凹部４３）が形成されている。この構成によれば、ハウジング１１の外部で端子金具２０と離間規制部材４０を取り付け状態に保持しておくことができるので、端子金具２０と離間規制部材４０をワンアクションでハウジング１１に取り付けることができる。 Also, the terminal fitting 20 and the attachment portion 41 are formed with holding portions (the front stop portion 26, the lance 27, and the concave portion 43) that hold the attachment portion 41 in a state of being attached to the terminal fitting 20. According to this configuration, the terminal fitting 20 and the separation regulating member 40 can be held in the attached state outside the housing 11, so that the terminal fitting 20 and the separation regulating member 40 can be attached to the housing 11 with one action. it can.
　また、離間規制部材４０は、対をなす端子金具２０同士を絶縁状態に保持する絶縁手段として、その少なくとも端子金具２０と接触する領域が電気的絶縁性を有する材料からなっている。これにより、上下で対をなす端子金具２０間、及び回路基板５１の表面又は裏面に沿って並列配置されている端子金具２０同士を、電気的な絶縁状態に保つことができる。 Further, the separation regulating member 40 is made of a material having at least a region in contact with the terminal fitting 20 as an insulating means for holding the pair of terminal fittings 20 in an insulated state. Thereby, the terminal metal fittings 20 arranged in parallel along the front or back surface of the circuit board 51 can be kept in an electrically insulated state between the upper and lower terminal metal fittings 20.
　＜他の実施例＞
　本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
　（１）上記実施例１では、回路基板を板厚方向に挟んで対をなす端子金具に対し、一対の取付部が個別に取り付けられるようにしたが、対をなす端子金具のうち一方の端子金具に一方の取付部を取り付け、他方の取付部を回路基板に係止させてもよい。この場合、回路基板の表面側に位置する端子金具用の離間規制部材と、回路基板の裏面側に位置する端子金具用の離間規制部材とを用いればよい。
　（２）上記実施例１では、接点部が端子本体部に対して相対変位しないように形成され、離間規制部材が、一対の取付部の間隔を広狭させるように弾性変形し得るようになっているが、これに限らず、接点部が端子本体部に対して弾性的に相対変位し、離間規制部材が弾性変形しない形態であってもよく、接点部が端子本体部に対して弾性的に相対変位し、離間規制部材が弾性変形可能な形態であってもよい。
　（３）上記実施例１では、端子金具と取付部には、取付部を端子金具に取り付けた状態に保持するための形状・構造に特徴を有する保持部を形成したが、このような保持部に替えて、圧入や接着等の手段によって、取付部と端子金具を取り付け状態に保持してもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, a pair of attachment portions are individually attached to a pair of terminal fittings sandwiching a circuit board in the plate thickness direction, but one terminal of the paired terminal fittings. One attachment portion may be attached to the metal fitting, and the other attachment portion may be locked to the circuit board. In this case, a terminal metal separation regulating member located on the front surface side of the circuit board and a terminal metal separation regulating member located on the back surface side of the circuit board may be used.
(2) In the first embodiment, the contact portion is formed so as not to be displaced relative to the terminal body portion, and the separation regulating member can be elastically deformed so as to widen the distance between the pair of attachment portions. However, the present invention is not limited to this, and the contact portion may be elastically displaced relative to the terminal main body portion, and the separation regulating member may not be elastically deformed. The relative displacement may be achieved, and the separation regulating member may be elastically deformable.
(3) In the first embodiment, the terminal fitting and the attachment portion are formed with a holding portion having a shape and structure for holding the attachment portion in a state of being attached to the terminal fitting. Instead, the attachment portion and the terminal fitting may be held in an attached state by means such as press-fitting or adhesion.
　Ａ…カードエッジコネクタ
　１１…ハウジング
　１７…基板収容空間
　２０…端子金具
　２１…端子本体部
　２５…接点部
　２６…前止まり部（保持部）
　２７…ランス（保持部）
　４０…離間規制部材
　４１…取付部
　４２…連結部
　４３…凹部（保持部）
　４４…繋ぎ部
　５１…回路基板 A ... Card edge connector 11 ... Housing 17 ... Board housing space 20 ... Terminal fitting 21 ... Terminal body 25 ... Contact part 26 ... Front stop (holding part)
27 ... Lance (holding part)
40: separation regulating member 41 ... mounting portion 42 ... coupling portion 43 ... concave portion (holding portion)
44 ... Connecting part 51 ... Circuit board

Claims (6)

  1. 　回路基板を挿入するための基板収容空間が形成された合成樹脂製のハウジングと、
    　前記回路基板と接触可能な接点部を有し、前記接点部を前記基板収容空間に臨ませるように前記ハウジングに取り付けられた端子金具と、
    　前記回路基板を挟んで対をなす前記端子金具同士を連結し、前記対をなす端子金具同士が前記回路基板から遠ざかる方向へ相対変位することを規制する離間規制部材とを備えていることを特徴とするカードエッジコネクタ。     A synthetic resin housing in which a board housing space for inserting a circuit board is formed;
    A contact part that can contact the circuit board, and a terminal fitting attached to the housing so that the contact part faces the board housing space;
    The terminal fittings that are paired with the circuit board interposed therebetween are connected to each other, and a separation regulating member that regulates relative displacement of the paired terminal fittings in a direction away from the circuit board is provided. And card edge connector.
  2. 　前記離間規制部材が、対をなす取付部と、前記対をなす取付部の基端部同士を連結する連結部とを一体化した単一部品であり、
    　前記対をなす取付部が前記対をなす端子金具に個別に取り付けられていることを特徴とする請求項１記載のカードエッジコネクタ。     The separation regulating member is a single part that integrates a pair of attachment parts and a connection part that connects base ends of the attachment parts that form a pair,
    2. The card edge connector according to claim 1, wherein the pair of attachment portions are individually attached to the pair of terminal fittings.
  3. 　前記離間規制部材は、
    　前記回路基板に沿って並列配置された複数対の前記取付部と、
    　前記対をなす取付部の基端部同士を連結する前記連結部と、
    　複数の前記連結部同士を連結する繋ぎ部とを備えた単一部品であることを特徴とする請求項２記載のカードエッジコネクタ。     The separation regulating member is
    A plurality of the mounting portions arranged in parallel along the circuit board;
    The connecting portion that connects the base ends of the paired attachment portions;
    The card edge connector according to claim 2, wherein the card edge connector is a single component including a plurality of connecting portions that connect the plurality of connecting portions.
  4. 　前記端子金具が、前記取付部に対し相対変位を規制された状態で取り付けられる端子本体部を有し、
    　前記接点部が前記端子本体部に対して相対変位を規制された形態で形成されており、
    　前記離間規制部材は、前記対をなす取付部の間隔を広狭させるような形態で弾性変形し得るようになっていることを特徴とする請求項１ないし請求項３のいずれか１項記載のカードエッジコネクタ。     The terminal fitting has a terminal main body portion attached in a state in which relative displacement is restricted with respect to the attachment portion;
    The contact portion is formed in a form in which relative displacement is restricted with respect to the terminal body portion,
    The card according to any one of claims 1 to 3, wherein the separation restricting member can be elastically deformed in such a manner as to widen or narrow the interval between the pair of attachment portions. Edge connector.
  5. 　前記端子金具と前記取付部には、前記取付部を前記端子金具に取り付けた状態に保持する保持部が形成されていることを特徴とする請求項１ないし請求項４のいずれか１項記載のカードエッジコネクタ。 The holding | maintenance part which hold | maintains the said attachment part in the state attached to the said terminal metal fitting is formed in the said terminal metal fitting and the said attachment part, The Claim 1 characterized by the above-mentioned. Card edge connector.
  6. 　前記離間規制部材は、前記対をなす端子金具同士を絶縁状態に保持する絶縁手段を備えていることを特徴とする請求項１ないし請求項５のいずれか１項記載のカードエッジコネクタ。 The card edge connector according to any one of claims 1 to 5, wherein the separation regulating member includes an insulating means for holding the pair of terminal fittings in an insulated state.
PCT/JP2016/075110 2015-09-17 2016-08-29 Card edge connector WO2017047361A1 (en)

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JP2015183851A JP2017059429A (en) 2015-09-17 2015-09-17 Card edge connector
JP2015-183851 2015-09-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7453378B2 (en) 2020-07-03 2024-03-19 ファナック株式会社 Work support device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54169791U (en) * 1978-05-22 1979-11-30
JPS62150875U (en) * 1986-03-17 1987-09-24
JPH0562992U (en) * 1992-01-29 1993-08-20 矢崎総業株式会社 Low insertion force connector
JPH0652940A (en) * 1992-07-30 1994-02-25 Amp Japan Ltd Card edge connector
JP2008091047A (en) * 2006-09-29 2008-04-17 Sumitomo Wiring Syst Ltd Card edge connector
JP2012054020A (en) * 2010-08-31 2012-03-15 Japan Aviation Electronics Industry Ltd Connector
JP2012151005A (en) * 2011-01-19 2012-08-09 Denso Corp Electronic device
JP2012156116A (en) * 2011-01-28 2012-08-16 Toyota Boshoku Corp Connector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54169791U (en) * 1978-05-22 1979-11-30
JPS62150875U (en) * 1986-03-17 1987-09-24
JPH0562992U (en) * 1992-01-29 1993-08-20 矢崎総業株式会社 Low insertion force connector
JPH0652940A (en) * 1992-07-30 1994-02-25 Amp Japan Ltd Card edge connector
JP2008091047A (en) * 2006-09-29 2008-04-17 Sumitomo Wiring Syst Ltd Card edge connector
JP2012054020A (en) * 2010-08-31 2012-03-15 Japan Aviation Electronics Industry Ltd Connector
JP2012151005A (en) * 2011-01-19 2012-08-09 Denso Corp Electronic device
JP2012156116A (en) * 2011-01-28 2012-08-16 Toyota Boshoku Corp Connector

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