JPH03220788A - Plug-in type printed board - Google Patents
Plug-in type printed boardInfo
- Publication number
- JPH03220788A JPH03220788A JP1563290A JP1563290A JPH03220788A JP H03220788 A JPH03220788 A JP H03220788A JP 1563290 A JP1563290 A JP 1563290A JP 1563290 A JP1563290 A JP 1563290A JP H03220788 A JPH03220788 A JP H03220788A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- pkg
- plug
- resistor
- precharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims description 7
- 238000007747 plating Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/403—Edge contacts; Windows or holes in the substrate having plural connections on the walls thereof
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子機器等の受け側コネクタに挿抜自在に設け
られたプラグイン型プリント基板に関し、特にその接触
子の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plug-in printed circuit board that is removably inserted into a receiving connector of an electronic device or the like, and particularly relates to the structure of a contactor thereof.
従来、プラグイン型コネクタ（以下、これを単にＰＫＧ
という。）には、電子機器等の受け側コネクタに接続さ
れる接触子が基板本体の端部に設けられている。そして
、この種のＰＫＧのうち特に活線挿抜されるものにおい
ては、活線挿抜による突入電流を防止するために、ＰＫ
Ｇ内に突入電流防止抵抗を追加したり、プリチャージ回
路を追加したりしていた。この突入電流とは、通電状態
の受け側コネクタにＰＫＧを接続した際にみられるよう
な、瞬時に増加し直ちに定常状態に帰る過渡電流のこと
を示し、突入電流が流されるとＰＫＧの接触子あるいは
受け側コネクタの接点が損傷されてしまう。Traditionally, plug-in connectors (hereinafter simply referred to as PKG)
That's what it means. ), a contact element to be connected to a receiving connector of an electronic device or the like is provided at the end of the board body. Among these types of PKGs, especially those that are hot-swapping and unplugging, in order to prevent inrush current due to hot-swapping,
An inrush current prevention resistor was added in G, and a precharge circuit was added. This inrush current refers to a transient current that increases instantaneously and immediately returns to a steady state, such as when a PKG is connected to a receiving connector that is energized. Alternatively, the contacts of the receiving connector may be damaged.
しかるに、上述したように突入電流を防ぐためにＰＫＧ
内に突入電流防止抵抗を追加する構造にすると、アナロ
グ回路の回路特性を検討する必要があることと、電流値
の大きくところでは電圧降下幅も大きくなるという欠点
がある。また、ＰＫＧ内にプリチャージ回路を追加する
構造にすると、ＰＫＧの回路収容量がプリチャージ回路
用だけ減少してしまう。However, as mentioned above, in order to prevent inrush current, PKG
If a structure is adopted in which an inrush current prevention resistor is added inside the circuit, there are disadvantages in that it is necessary to consider the circuit characteristics of the analog circuit, and that the voltage drop width becomes large in areas where the current value is large. Further, if a structure is adopted in which a precharge circuit is added within the PKG, the circuit capacity of the PKG is reduced by the amount for the precharge circuit.
本発明に係るプラグイン型プリント基板は、接触子の接
触面上であって接続行程で最初に受け側コネクタと接触
される部位に、この接触子より高抵抗な抵抗体層を設け
たものである。The plug-in type printed circuit board according to the present invention is provided with a resistor layer having a higher resistance than that of the contact on the contact surface of the contact and at the part that comes into contact with the receiving connector first in the connection process. be.
プラグイン型プリント基板の活線挿抜時に発生する突入
電流を抵抗体層の抵抗によって制限することができる。The inrush current that occurs during hot insertion and removal of a plug-in printed circuit board can be limited by the resistance of the resistor layer.
以下、本発明の一実施例を第１図および第２図によって
詳細に説明する。Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.
第１図は本発明に係るプラグイン型プリント基板の要部
を拡大して示す断面図、第２図は本発明に係るプラグイ
ン型プリント基板を受け側コネクタに接続している状態
を示す断面図である。これらの図において、■はカード
エツジ・タイプＰＫＧの本体で、この本体１の端部にお
ける表裏両面には、受け側コネクタ２のコンタクト２ａ
に接続される接触子としてのＰＫＧ端子部３が設けられ
ている。このＰＫＧ端子部３は、ＰＫＧ内の回路（図示
せず）に接続された導体からなる端子部分に金または金
属めっきを施すことによって形成されている。なお、前
記受け側コネクタ２のコンタクト２ａは導電性を有する
弾性材によって形成され、ＰＫＧ本体１を挟んで保持す
るように構成されており、その先端接点部２ｂはＰＫＧ
端子部３および後述するプリチャージ抵抗部に摺接され
るように丸みを帯びて形成形成されている。FIG. 1 is an enlarged cross-sectional view of the main parts of a plug-in printed circuit board according to the present invention, and FIG. 2 is a cross-sectional view showing the plug-in printed circuit board according to the present invention connected to a receiving connector. It is a diagram. In these figures, ■ is the main body of the card edge type PKG, and the contacts 2a of the receiving connector 2 are on both the front and back sides of the end of the main body 1.
A PKG terminal portion 3 is provided as a contact to be connected to. The PKG terminal portion 3 is formed by plating a terminal portion made of a conductor connected to a circuit (not shown) within the PKG with gold or metal plating. The contacts 2a of the receiving connector 2 are made of a conductive elastic material and are configured to sandwich and hold the PKG main body 1, and the tip contact portion 2b is formed of a conductive elastic material.
It is formed in a rounded shape so as to be in sliding contact with the terminal portion 3 and a precharge resistor portion to be described later.
４は突入電流を制限するための抵抗体層としてのプリチ
ャージ抵抗部で、このプリチャージ抵抗部４は、前記Ｐ
ＫＧ端子部３の接触面上であって接続方向前端部に、言
い換えれば接続行程で最初に受け側コネクタ２のコンタ
クト２ａと接触される部位に設けられている。また、こ
のプリチャージ抵抗部４は、前記ＰＫＧ端子部３より高
い抵抗をもった金属をＰＫＧ端子部３にめっきしたり、
あるいはＰＫＧ端子部３より高い抵抗をもった粒子をＰ
ＫＧ端子部３上に付着させたりして形成されている。Reference numeral 4 denotes a precharge resistor section as a resistor layer for limiting inrush current, and this precharge resistor section 4 is connected to the P
It is provided on the contact surface of the KG terminal portion 3 at the front end in the connection direction, in other words, at the portion that first comes into contact with the contact 2a of the receiving connector 2 in the connection process. Further, the precharge resistor section 4 may be formed by plating the PKG terminal section 3 with a metal having a higher resistance than the PKG terminal section 3, or
Alternatively, particles with higher resistance than the PKG terminal part 3 can be
It is formed by being attached onto the KG terminal portion 3.
このようにプリチャージ抵抗部４が設けられたＰＫＧ本
体１を受け側コネクタ２に接続するには、ＰＫＧ端子部
３がコンタク）２ａの接点部２ｂと対応するようにＰＫ
Ｇ本体１を位置決めし、このＰＫＧ本体１を一対のコン
タクト２ａ、２ａ間に挿入して行なう。ＰＫＧ本体１を
両コンタクト２ａ間に挿入すると、コンタクト２ａの接
点部２ｂにプリチャージ抵抗部４が最初に接触する。こ
の際、電流はコンタクト２ａからプリチャージ抵抗部４
およびＰＫＧ端子部３を介してＰＫＧ内の回路へ流され
る。すなわち、通電状態の受け側コネクタ２へＰＫＧを
活線挿入する際に生じる突入電流は、プリチャージ抵抗
部４の抵抗により制限され、これによって減少されてＰ
ＫＧ内のコンデンサ類に充電される。そして、さらにＰ
ＫＧ本体１を挿入すると、第２図中二点鎖線で示すよう
に、コンタク）２ａの接点部２ｂはプリチャージ抵抗部
４を乗り越えてＰＫＧ端子部３に接触するようになる。In order to connect the PKG main body 1 provided with the precharge resistor 4 to the receiving connector 2, the PKG terminal 3 must be connected to the contact 2b of the contact 2a.
The PKG main body 1 is positioned, and the PKG main body 1 is inserted between the pair of contacts 2a, 2a. When the PKG main body 1 is inserted between both contacts 2a, the precharge resistor portion 4 first comes into contact with the contact portion 2b of the contact 2a. At this time, the current flows from the contact 2a to the precharge resistor section 4.
and is sent to the circuit within the PKG via the PKG terminal section 3. In other words, the inrush current that occurs when a PKG is live inserted into the receiving connector 2 in the energized state is limited by the resistance of the precharge resistor 4, and is thereby reduced.
The capacitors in KG are charged. And further P
When the KG main body 1 is inserted, the contact portion 2b of the contact 2a comes to overcome the precharge resistor portion 4 and come into contact with the PKG terminal portion 3, as shown by the two-dot chain line in FIG.
この際、電流はコンタクト２ａから直接ＰＫＧ端子部３
へ流される。すなわち、接続行程の最終位置までＰＫＧ
本体１を挿入すると、コンタク１−２ａとＰＫＧ端子部
３とが特別な抵抗体を介すことなく低抵抗で接触するこ
とになる。このように接続行程の最終位置までＰＫＧ本
体１を挿入することによってＰＫＧの活線挿入が完了す
る。At this time, the current flows directly from the contact 2a to the PKG terminal section 3.
be swept away. In other words, PKG up to the final position of the connection process.
When the main body 1 is inserted, the contactor 1-2a and the PKG terminal portion 3 come into contact with each other with low resistance without using a special resistor. By inserting the PKG main body 1 to the final position of the connection process in this manner, the live insertion of the PKG is completed.
したがって、本発明によれば、接続行程の最初にプリチ
ャージ抵抗部４が受け側コネクタ２のコンタクト２ａに
接触するから、ＰＫＧの活線挿抜時に発生する突入電流
をプリチャージ抵抗部４の抵抗によって制限することが
できる。このため、突入電流防止抵抗やプリチャージ回
路を不要とすることができる。Therefore, according to the present invention, since the precharge resistor 4 comes into contact with the contact 2a of the receiving connector 2 at the beginning of the connection process, the inrush current generated during hot insertion and removal of the PKG is suppressed by the resistance of the precharge resistor 4. can be restricted. Therefore, it is possible to eliminate the need for an inrush current prevention resistor or a precharge circuit.
以上説明したように本発明に係るプラグイン型プリント
基板は、接触子の接触面上であって接続行程で最初に受
け側コネクタと接触される部位に、この接触子より高抵
抗な抵抗体層を設けたため、プラグイン型プリント基板
の活線挿抜時に発生する突入電流を抵抗体層の抵抗によ
って制限することができる。したがって、突入電流によ
って接触子や受け側コネクタの接点が損傷されるのを、
突入電流防止抵抗やプリチャージ回路を使用せずに防く
ことができる。このため、プリチャージ抵抗を追加する
ことによってアナログ回路の特性が劣化したり、電圧降
下を起こしたりするのを防ぐことができる。また、抵抗
体層はプリント基板の接触子上に設けられるため、プリ
ント基板の回路収容量が減少するようなこともない。As explained above, the plug-in type printed circuit board according to the present invention has a resistor layer having a higher resistance than that of the contact on the contact surface of the contact and the part that comes into contact with the receiving connector first in the connection process. By providing this, it is possible to limit the inrush current generated during hot insertion and removal of the plug-in type printed circuit board by the resistance of the resistor layer. Therefore, it is possible to prevent the contacts and receiving connector contacts from being damaged by inrush current.
This can be prevented without using an inrush current prevention resistor or precharge circuit. Therefore, adding a precharge resistor can prevent the characteristics of the analog circuit from deteriorating or causing a voltage drop. Furthermore, since the resistor layer is provided on the contact of the printed circuit board, the circuit capacity of the printed circuit board will not be reduced.
第１図は本発明に係るプラグイン型プリント基板の要部
を拡大して示す断面図、第２図は本発明に係るプラグイ
ン型プリント基板を受け側コネクタに接続している状態
を示す断面図である。
１・・・・ＰＫＧ本体、２・・・・受け側コネクタ、３
・・・・ＰＫＧ端子部、４・・・・プリチャージ抵抗部
。FIG. 1 is an enlarged cross-sectional view of the main parts of a plug-in printed circuit board according to the present invention, and FIG. 2 is a cross-sectional view showing the plug-in printed circuit board according to the present invention connected to a receiving connector. It is a diagram. 1...PKG body, 2...Receiving side connector, 3
...PKG terminal section, 4...Precharge resistor section.
Claims (1)
に設けられたプラグイン型プリント基板において、前記
接触子の接触面上であって接続行程で最初に受け側コネ
クタと接触される部位に、この接触子より高抵抗な抵抗
体層を設けたことを特徴とするプラグイン型プリント基
板。In a plug-in printed circuit board in which a contact to be connected to the receiving connector is provided at the end of the board main body, on the contact surface of the contact and at the part that comes into contact with the receiving connector first in the connection process. , a plug-in type printed circuit board characterized by being provided with a resistor layer having a higher resistance than the contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1563290A JPH03220788A (en) | 1990-01-25 | 1990-01-25 | Plug-in type printed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1563290A JPH03220788A (en) | 1990-01-25 | 1990-01-25 | Plug-in type printed board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03220788A true JPH03220788A (en) | 1991-09-27 |
Family
ID=11894098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1563290A Pending JPH03220788A (en) | 1990-01-25 | 1990-01-25 | Plug-in type printed board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03220788A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07335329A (en) * | 1994-06-13 | 1995-12-22 | Fujitsu Denso Ltd | Rush current limiting connector |
| JPH08250221A (en) * | 1995-03-15 | 1996-09-27 | Nec Corp | Receiving side connector |
| JP2006339167A (en) * | 2000-11-28 | 2006-12-14 | Auto Network Gijutsu Kenkyusho:Kk | Terminal pair including low-arc terminal |
| US7371091B2 (en) | 2006-06-22 | 2008-05-13 | Honeywell International, Inc. | Method and apparatus for integrated hot swap connector pins for AC and DC electric power systems |
-
1990
- 1990-01-25 JP JP1563290A patent/JPH03220788A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07335329A (en) * | 1994-06-13 | 1995-12-22 | Fujitsu Denso Ltd | Rush current limiting connector |
| JPH08250221A (en) * | 1995-03-15 | 1996-09-27 | Nec Corp | Receiving side connector |
| JP2006339167A (en) * | 2000-11-28 | 2006-12-14 | Auto Network Gijutsu Kenkyusho:Kk | Terminal pair including low-arc terminal |
| US7371091B2 (en) | 2006-06-22 | 2008-05-13 | Honeywell International, Inc. | Method and apparatus for integrated hot swap connector pins for AC and DC electric power systems |
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