JP4814730B2 - Connector between printed circuit boards - Google Patents

Description

  In the present invention, in a state where two printed circuit boards are arranged in a direction orthogonal to each other, they are soldered to one conductive pattern of one printed circuit board and contacted to one conductive pattern of the other printed circuit board by elastic force. It is related with the connection tool between the printed circuit boards for electrically connecting the conductive patterns in two printed circuit boards.

For example, the invention disclosed in Japanese Patent Application Laid-Open No. 7-282924 is known as a connection tool for arranging two printed boards in a direction orthogonal to each other and connecting the conductive patterns formed on each printed board. There is. The present invention solders terminals of either a male connector or a female connector to multiple conductive patterns on one printed circuit board, solders terminals of the other connector to multiple conductive patterns on the other printed circuit board, and By connecting the male connector and the female connector, the two printed boards are electrically connected to each other in a state of being orthogonal to each other.
JP 7-282924 A

  By the way, in what connects the conductive patterns of two printed circuit boards in an orthogonal state using the connector described above, because the other printed circuit board is placed on the upper surface of one printed circuit board, There is a problem that it cannot be used when two printed circuit boards are arranged orthogonally at a distant position, and when a connector attached to one printed circuit board is defective and replaced. Therefore, the troublesome work of melting and removing the solder between the terminal and the conductive pattern in the failed connector is required.

  Furthermore, when connecting a small number of conductive patterns such as the power supply pattern or signal pattern of one printed circuit board and the other power supply pattern or signal pattern, the use of the conventional connector described above increases the cost. There is a problem that a space corresponding to the volume of the connector is required and the entire product becomes large, which is not suitable for downsizing and weight reduction in recent years. Therefore, in the past, a connector for connecting the lead wires was used in such a case. However, even this connector is expensive, and the lead wires are connected to the conductive patterns of the two printed boards. There was a problem that the number of work steps increased because soldering had to be performed.

  The present invention is intended to solve the above-described problems. The object of the present invention is to solder two conductive patterns on one printed circuit board and to mechanically contact the other printed circuit board. The conductive patterns of the printed circuit boards can be electrically connected to each other, and the other printed circuit board can be connected to one printed circuit board not at the overlapping position but at a certain distance, and the two printed circuit boards. Is to provide a connector between printed circuit boards that can be connected even at angles other than 90 degrees.

The connector between printed circuit boards according to the present invention achieves the above-mentioned object, and the means of claim 1 is characterized in that at least two protrusions are formed to maintain a certain distance from the printed circuit board. A lead portion of a book, a pipe-shaped receiving tube formed integrally with the lead portion, a conductive metal fixing member comprising a stopper piece formed on the receiving tube, and a fitting member inserted into the receiving tube of the fixing member. An intermediate member of a pipe-like conductive metal having a boundary step portion between a small diameter portion and a large diameter portion positioned in contact with the stopper piece, and positioning at the boundary step portion when inserted from the large diameter portion side of the intermediate member bottomed pipe being spring accommodated in the bottomed pipe, and composed of a contact pin stop has been subjected missing while being spring biased to normally protruding direction by the spring force of the spring, the lead of the fixed member At a position where the protrusion comes into contact with the front surface of the first printed circuit board and is raised with respect to the first printed circuit board in the component insertion hole formed in the conductive pattern on the back surface side of the first printed circuit board. The tip of the lead portion is soldered to the conductive pattern, and in this state, when the second printed circuit board is arranged in the vertical direction with respect to the first printed circuit board, the contact pin becomes the conductive pattern of the second printed circuit board. The conductive patterns of the two printed circuit boards are electrically connected to each other by being in elastic contact with each other.

According to a second aspect of the present invention, in the first aspect of the present invention, the window portion into which the solder is poured into the fixing member is formed, and the solder is caused to flow from the window portion in a state where the intermediate member is fitted to the fixing member. The fixing member and the intermediate member are integrated so that the fixing and the connection are surely performed .

  In the present invention, as described above, the fixing member is fixed to the printed circuit board by soldering, and the contact member protruding by the spring bias is fixed to the fixing member, or the intermediate member is fixed to the fixing member, and the intermediate member is fixed. Since the contact member is mechanically and electrically attached by fitting the member to the member, another printed circuit board arranged in a direction perpendicular to the printed circuit board by projecting the contact member from the edge of the printed circuit board It is possible to connect the conductive patterns between the two printed circuit boards by contacting each other, and the two printed circuit boards can be contacted even if they are arranged apart from each other. There is no need to place the printed circuit board vertically on one printed circuit board, such as a connection between patterns. Be placed substrates tilted is possible to connect the conductive patterns to each other.

  Further, the contact member is soldered to the fixed member, or the intermediate member having a length longer than that of the fixed member is soldered to the fixed member, and the contact member is fitted to the intermediate member, so that the fixed member and the contact member are fitted. Thus, no contact failure occurs between the printed circuit boards and, therefore, no contact failure occurs when the printed circuit boards are in contact with each other.

  Furthermore, even if a protrusion is formed in the lead portion of the fixing member, and the fixing member is soldered to the printed circuit board with this protrusion, the fixing member is always fixed at a certain height from the surface of the printed circuit board. Therefore, it is possible to prevent the contact member from coming into contact with the surface of the printed circuit board and causing poor contact with other printed circuit boards.

  The present invention fixes a fixing member to a printed board by soldering, and mechanically and electrically attaches a contact member protruding to the fixing member by a spring bias, and attaches the contact member to an edge of the printed board. By projecting from the conductive pattern, the conductive patterns between the two printed circuit boards can be connected to each other.

In FIG. 1 to FIG. 3, reference numeral 1 denotes a fixing member made of a conductive metal, and a receiving tube 11 that is formed into a pipe shape by being rolled in a developed state, and lead portions 12 that are extended from both ends of the receiving tube 11. , And a projecting portion 12 a formed integrally with the intermediate portion of the lead portion 12. The lead portion 12 is bent substantially at a right angle at the upper side of the protrusion 12a.

A window 11a through which solder is poured is formed at the rounded joint of the receiving tube 11 and protrudes into the pipe and protrudes to the inside of the receiving tube 11. The small diameter portion 22 and the large diameter portion 21 in the intermediate member 2 described later A stopper piece 11b is formed which abuts on the boundary step portion and prevents further entry.

2 is a pipe-shaped intermediate member that is also made of a conductive metal, and has a small diameter that is shorter than the length of the receiving tube 11 of the fixing member 1 and has an outer diameter that can be fitted to the inner diameter of the receiving tube 11. A portion 22 and a large-diameter portion 21 formed integrally with the small-diameter portion 22 are formed.

  3 is a bottomed pipe-like contact member made of a conductive metal, and a pipe 31 fitted in close contact with the large-diameter portion 21 of the intermediate member 2 and accommodated in the pipe 31. And a contact pin 33 that is slidably accommodated in the pipe 31 and is urged by the spring 32 and is prevented from coming off.

  Next, the assembly means of the fixing member 1, the intermediate member 2 and the contact member 3 configured as described above will be described. The lead portion 12 of the fixing member 1 is inserted into the component insertion hole P11 formed in the first printed circuit board P1. The protrusion 12a is inserted until the lower surface of the printed circuit board P1 contacts the surface of the printed circuit board P1, and soldered to the conductive pattern P12 formed on the back surface of the printed circuit board P1. In this state, the receiving tube 11 of the fixing member 1 is fixed in a state where it floats at a predetermined interval from the printed circuit board P1.

Next, when the small-diameter portion 22 of the intermediate member 2 is press-fitted into the receiving tube 11, the stopper piece 11 b comes into contact with the step formed at the boundary between the large-diameter portion 21 and the small-diameter portion 22 of the intermediate member 2 and beyond. Is prevented from entering. In this state, solder is poured into the window 11a formed in the receiving portion 11, and the fixing member 1 and the intermediate member 2 are mechanically fixed and electrically connected. The means for mechanically and electrically fixing the intermediate member 2 to the fixing member 1 is not limited to soldering. The intermediate member 2 is press-fitted into the fixing member 1 and the fixing member 1 is crushed. The contact force may be increased.

  Next, when the contact member 3 is press-fitted into the large diameter portion 21 of the intermediate member 2, the rear end side of the intermediate member 3 is stopped and fixed at the boundary with the small diameter portion 22. In this state, the intermediate portion 2 and the contact member 3 have a long fitting length and are press-fitted, so that the two are reliably fixed mechanically and are in good electrical contact. Is maintained and does not cause poor contact.

  Thus, the connection tool of the present invention fixed to the first printed circuit board P1 is in contact when the second printed circuit board P2 is opposed to the first printed circuit board P1 in a vertical state at a position away from the first printed circuit board P1. Since the contact pin 33 of the member 3 elastically contacts the conductive pattern formed on the second printed circuit board P2 by the spring force of the spring 32, it is formed on the first and second printed circuit boards P1 and P2. The conductive patterns are in good contact with each other so that power and signals can be transmitted and received.

  The first and second printed circuit boards P1 and P2 are not 90 degrees from each other, that is, the second printed circuit board P2 is larger than the angle of 90 degrees with respect to the first printed circuit board P1. Or even if it is small, since the contact pin 33 reliably contacts the conductive pattern of the second printed circuit board P2, it can be used to connect the printed circuit boards in various electronic devices.

  In the above-described embodiment, in order to attach the contact member 3 to the fixing member 1, the intermediate member is attached to the fixing member 1, and the connection member is fitted and fixed to the intermediate member. As shown in FIG. 4, without attaching the intermediate member 2 to the fixing member 1, the contact member 3 is directly pressed into the fixing member 1, and solder is poured into the window 11 a of the fixing member 1 to fix or fix the contact member 3. Even if the member 1 is crushed and fixed, the same effects as those of the first embodiment can be obtained.

It is a disassembled perspective view which shows the Example of the connector between the printed circuit boards which concerns on this invention. It is sectional drawing of the state attached to the 1st printed circuit board same as the above. It is sectional drawing of the state which made the contact pin contact the 2nd printed circuit board. It is a side view of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixing member 11 Receptacle 11a Window 11b Stopper 12 Lead part 12a Protrusion part 2 Intermediate member 21 Large diameter part 22 Small diameter part 3 Contact member 31 Pipe 32 Spring 33 Contact pin

Claims (2)

At least two lead portions formed with protrusions for maintaining a certain distance from the printed circuit board, a pipe-shaped receiving tube formed integrally with the lead portions, and formed on the receiving tube A conductive metal fixing member made of a stopper piece;
An intermediate member of a pipe-shaped conductive metal having a stepped portion between a small diameter portion and a large diameter portion that are positioned in contact with the stopper piece when fitted into the receiving tube of the fixing member;
When inserted from the large-diameter portion side of the intermediate member, the bottomed pipe positioned at the boundary step portion, the spring accommodated in the bottomed pipe, and the spring force of the spring is always urged in the protruding direction. Consists of contact pins with retaining caps,
The protruding portion abuts against the front surface of the first printed circuit board in the component insertion hole formed in the conductive pattern on the back surface side of the first printed circuit board with respect to the first printed circuit board. The tip of the lead portion is soldered to the conductive pattern at a position where the raised state is reached, and in this state, when the second printed circuit board is disposed in the vertical direction with respect to the first printed circuit board, the contact pin is second A connection tool between printed circuit boards, wherein the conductive patterns of the two printed circuit boards are electrically connected by elastic contact with the conductive patterns of the printed circuit board. Wherein forming a window portion for pouring solder into the fixing member, wherein in a state in which the fitted an intermediate member to the fixing member, the fixing member and the intermediate member are integrated by flowing solder from the window portion, fixed and connected 2. The connection device between printed circuit boards according to claim 1, wherein the connection is reliably performed .

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