JPH04133384U - Surface mount connector fixture - Google Patents

Abstract

(57) [Summary] [Purpose] In surface mounting means for connectors in which fixing parts attached to the left and right sides of the bottom of the connector in the longitudinal direction are soldered to the surface of a printed wiring board, adhesive means are used to position and temporarily fix the connector. There must be. Therefore, implementation becomes troublesome,
Fixing accuracy tends to decrease. [Structure] The present invention includes a fixing part and a lock pin part that is integrally provided in a direction perpendicular to the surface of the fixing part and is locked to the printed wiring board when inserted into the insertion hole provided in the printed wiring board. , a fixture having an attachment part to the connector attachment part is fixed to the connector attachment part, whereby the connector is positioned and temporarily fixed in a predetermined position on the printed wiring board without the need for positioning and temporary fixation by adhesive. By making it possible to perform soldering in the same state, the mounting is simplified and the soldering fixing position is made more accurate.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a fixture for fixing a surface mount connector to a printed wiring board.

0002

[Conventional technology]

A surface mount connector, that is, a printed wiring board (1 ), place the receptacle on the pre-soldered circuit pattern (land) (1a). Press each contact tail (2a) of the connector (2) to melt the preliminary solder. By soldering to the circuit pattern together with other mounted circuit components, the connection can be secured. A surface mount connector is used, which is mounted with a fixed height. By the way, this connection The fixing strength of the contact tail (2) to the printed wiring board (1) is the same as that of each contact tail (2a). It depends on the soldering strength between circuit pattern (1a). For this reason, the recent The miniaturization of contacts due to the demand for more compact shapes is achieved by reducing the size of the contact tail. Since the soldering area is reduced, the fixing strength is greatly reduced. On the other hand, many connectors Polarization increases the insertion and removal force of the connector, so the reduction in fixing strength is due to the plug connector (3) Contact tail (2a) and circuit pattern (1a) due to force when removed This may lead to damage to the soldering, leading to poor connections and other reliability issues. Therefore, in order to eliminate this drawback, in the past, receptors were used as shown in Figure 5. Fixing pins (4) are provided at both left and right ends of the insulating housing (2b) of the cable connector. , After inserting this into the insertion hole (1b) provided on the printed wiring board (1) side, Solder the metal foil part provided on the back side of the printed circuit board (1) to connect the receptacle connector. The force based on the removal of the plug connector (3) for connecting the cable from (2) to Solder the soldering part so that the fixing pin (4) supported by the printed circuit board (1) bears the burden. Efforts are being made to prevent the destruction of In addition, as another means, as shown in the side view of the main part shown in FIG. 6, the contact tail (1a) Fixing parts (6) with a much larger area are provided at both left and right ends of the connector (2). , solder this to the fixing part provided on the surface of the printed wiring board (1), and thereby secure the case. Breakage of the soldered part by resisting the force when removing the plug connector (3) for the cable connection efforts are being made to prevent this.

0003

[Problem that the idea aims to solve]

However, with the fixing pin (4) shown in Figure 5, the mounting on the printed wiring board (1) is difficult. When installing, solder the mounted components to the circuit pattern (1a) and connect the fixing pins (4). ) requires two steps: soldering to the back side of the printed wiring board (1), making mounting difficult. It is. In addition, in the mounting and fixing means by soldering the fixing part (6) shown in Fig. 6, the circuit pattern The fixed part (6) can be soldered at the same time as other mounted parts are soldered to (1). Therefore, it has the advantage of being able to be soldered in one step. However, on the other hand, this method Connecting the connector (2) to the printed wiring board (1), such as when using fixed pins (4) Since positioning and temporary fixing cannot be done, the connector (2) cannot be printed and placed, for example, by adhesive means. After preliminary fixing on the surface of the wire board (1), it is necessary to perform soldering. Therefore implementation It requires two steps, and there are mounting difficulties such as the possibility of misalignment during bonding. However, this difficulty becomes more difficult as the spacing between the contact tails becomes narrower due to compact multi-polarity. There is a strong demand for a solution to this problem.

0004

[Purpose of invention]

The purpose of this invention is to enable positioning without the need for temporary positioning fixation using adhesive means. Surface material that can be soldered and fixed at the same time as other mounted components while temporarily fixed. We present a wearable connector fixing device that has a significant effect on miniaturizing and increasing the number of pins in connectors. This is how it was done.

[0005]

[Means of this invention to solve the problem]

This invention is soldered to a printed wiring board to secure the receptacle connector. The fixing part for positioning and the locking pin part for positioning and temporary fixing are integrated in the direction perpendicular to this. This fixture is characterized by a configuration including: and connect this to the left side of the receptacle connector. Fix it on the right end and insert the lock pin part into the insertion hole provided on the printed wiring board. to temporarily fix the position, and in this state, solder the fixing part onto the printed wiring board. This eliminates the need for conventional adhesive-based position fixing means, making mounting easier. In addition to simplifying the design and improving fixing accuracy, it also supports miniaturization and multi-pole connectors. This is how it was done. Next, embodiments of the present invention will be described with reference to the drawings.

[0006]

【Example】

FIGS. 1(a) and 1(b) are a partial perspective view and a side view showing an embodiment of the fixing device of the present invention. In the figure, (7) is a flat plate-shaped fixed part, and (8) is a fixed part in the center part. Two lock pins for positioning and temporary fixing, (9) is on the left side of the lock pin Attachment to the mounting parts provided on the left and right sides of the receptacle connector located at a distance on the right side Department. The lock pin part (8) and the mounting part (9) are connected to the flat fixing part (7). It is formed by bending one end at right angles and then separating the other end by folding it back in the opposite direction. It will be done. Also, the length of the lock pin part (8) is set so that it can be inserted into the insertion hole provided on the printed wiring board side. It has a length that protrudes to the back side of the printed wiring board (1) when it is inserted, and the tip has a An outwardly projecting portion (8a) is formed to be secured to the back surface of the printed wiring board (1). There is. In addition, the mounting portion (9) has a base end (9a) at the tip and a receptacle connector. It has a key part (9b) that holds the mounting part of the tassel. The fixing device (10) then attaches to the receptor as shown in the partially sectional side view shown in FIG. Insert the lock pin part ( 8) by pressing from above with the key part (9b) of the mounting part (9) inserted. The curved base is opened outward once and then returned to its original position, as shown in the side view of Figure 3. (9a), connect the mounting part (2c) of the receptacle connector (2) to its stepped part ( At 2e), it is mounted by being clamped and held from above and below. Therefore, the two lock pin parts (8) of this attached fixture (10) are As shown in the partial cross-sectional view of When the insertion is completed, insert it into the insertion hole (1b) provided on the wiring board (1). Positioning and temporary fixation are performed by the lock pin portion (8) that returns to its original position. subordinate If you solder the fixing part (7) in this state, it will be less complicated and more precise than gluing. Since positioning does not require difficult means, it can be soldered together with other mounted components at once. Can be determined. The present invention has been explained above using one embodiment, but the fixing device (10) is connected with a screw. It can be attached to the mounting part (2c) of the receptacle connector (2). When molding the insulating housing, the fixing device of this invention is embedded in the mounting part and fixed. When the lock pin part is A fixing protrusion (8b) is provided on the base side of (8), and this is located within the mounting part (2c). It can be installed in such a way that it will not fall out. Note that the tip of the lock pin part (8) protruding from the back side of the printed wiring board (1) is Soldering to the back side of the wiring board (1) increases the strength of fixing the connector to the printed wiring board. Needless to say, it can be increased.

[0007]

[Effect of the idea]

As shown above, the fixing parts at both ends of the connector are soldered to the printed wiring board. In the method, positioning can be performed with high accuracy without the need for temporary positioning means such as adhesives. It has the excellent advantage of being able to be fixed in place, and is suitable for printing small multi-pole connectors. It is highly effective when used for mounting and fixing on wiring boards.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a structure for attaching the present invention to a connector.

FIG. 3 is an explanatory diagram of a connector to which the fixing device of the present invention is attached and a structure for attaching it to a printed wiring board.

FIG. 4 is an explanatory diagram of another embodiment of the present invention.

FIG. 5 is a mounting explanatory diagram of a surface mount connector.

FIG. 6 is an explanatory diagram of a method of mounting a connector using a lock pin.

[Explanation of symbols]

(1) Printed wiring board (1a) Circuit pattern (land) (1b) Lock pin insertion hole (2) Receptacle connector (2a) Contact tail (2b) Insulating housing (2c) Connector mounting part (2d) Mounting hole (2e) Stepped section (3) Plug connector (4) Fixed pin (5) Lock pin insertion hole (6) Fixed part (7) Fixed part (8) Lock pin for temporary positioning (8a) Overhang part (8b) Fixed protrusion (9) Attachment part to connector (9a) Base end (9b) Key part (10) Fixtures

Claims (1)

[Scope of utility model registration request] 1. A fixing device for a surface mount connector in which fixing parts attached to the left and right sides of the lower side of the receptacle connector in the longitudinal direction are soldered to the printed wiring board surface to mount the connector, wherein the flat plate fixing 1. A connector fixing device for surface mounting, characterized in that a locking pin portion is provided in a right angle direction at one end of the portion to be locked by an insertion hole of a printed wiring board.