JPH04357636A - Relay and socket - Google Patents

Abstract

PURPOSE:To enable a relay to be simply mounted and equipped to a socket and attain rigid mounting. CONSTITUTION:Engaging projections 3, 3 are provided to both side faces 2a, 2a of a relay 2, respectively, and guide grooves 8, 8 for by-slide guiding of these projections 3, 3 are formed in a socket 6 so as to permit the relay 2 to be stably and reliably positioned and mounted equipped with respect to the socket 6. On the other hand, an engaging/retaining claw 9 for engagement/ retention of the engaging projection 3, as well as the side face, of the relay 2 is provided in each guide groove 8 so that the unit may withstand vibrations and impacts applied from various directions.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay and a socket into which the relay is inserted.

0002

[Prior Art] Conventionally, this type of relay and socket were
There are those shown in FIGS. 4 to 7.

In the figure, a relay 20 is made of a substantially rectangular molded material such as synthetic resin, and houses a relay main body 21 to which a relay terminal (not shown) is integrally connected.

Reference numeral 22 denotes a socket, which is made of a molded material such as synthetic resin, and has a plurality of external terminals 2 connected to the relay terminals.
4 is implanted, and a pair of both arm portions 22a are provided protruding from both sides. A socket 22 is provided in the middle of the arm portion 22a.
A groove 22 extending from the back side of the arm portion 22a to near the upper end of the arm portion 22a.
b is formed to increase flexibility to facilitate removal of the relay 20 from the socket 22. The arm portion 2
A locking pawl 22c extending toward the other arm portion 22a is integrally formed at one upper end of the relay 2a to hold the relay 20 when it is attached.

When mounting the relay 20 in the socket 22, the arm portion 22a on the side provided with the locking claw 22c is expanded outward, and both sides of the relay 20 are attached to the locking claw 22c.
Lower the relay 20 onto the socket 22 so that it is in elastic contact with the upper part of the other arm 22a, and connect the relay terminal to the external terminal 23 of the socket 22 while checking visually to make sure that the bottom of the relay 20 is The relay 20 is configured to be placed on the upper surface of the socket 22 so that one point on the side surface and the upper surface of the relay 20 are respectively locked by both arms 22a, 22a and a locking claw 22c.

When removing the relay 20 from the socket 22, as shown in FIG. Removal device A2 consisting of a screwdriver etc.
is inserted, the tip of the bottom corner of the relay 20 is raised above the top surface of the socket 22, the top corner of the relay 20 is removed from the locking claw 22c, and the relay 20 is removed upward. There is.

[0007]

[Problems to be Solved by the Invention] The relay 20 shown in the conventional example has both arm portions 22a, 22a formed in the socket 22.
The relay 20 is locked to the socket 22 by the locking claw 22c, which maintains a certain level of mounting strength, and by locking the locking claw 22c to the upper corner of the relay 20, the relay 20 is completely installed in the socket 22. This has the advantage that it is possible to determine whether the implementation is complete or not.

However, the relay 20 to the socket 22
When installing and inserting socket 2, as shown in Figure 6,
If electronic components such as tall capacitors 50 and 51 and other relay sockets are mounted in parallel around 2,
The fingers 40, 40 holding the relay 20 are connected to the capacitor 5.
0 and 51, making it difficult to move the relay downward, and making it extremely difficult to position and connect the relay terminal 23 to the external terminal 24 having a blade-shaped upper part implanted in the socket 20, In some cases, as shown in FIGS. 7(a) and 7(b), the relay terminal 23a may not be inserted properly and may be bent, or the relay terminal 23b may be inserted outside the blade receiving portion of the external terminal 24. Therefore, there was a problem that the connection between the two could not be established reliably, making it difficult to implement stably.

[0009] Furthermore, when vibration or impact is applied to the socket 22 in which the relay 20 is mounted and mounted, the arms 22
a, 22a and the locking pawl 22c are relatively durable against vibrations and shocks applied in the vertical direction and in the linear direction connecting both arms 22a, 22a. When vibration or impact is applied in the direction shown, that is, in the direction of the surface not held by the arm portion 22a, the locking claw 2
2c can prevent some wobbling, but when the value becomes high, the corner of the relay 20 comes off from the locking pawl 20c, causing the problem that the relay 20 wobbles or comes off. The present invention has been made to address and improve the above-mentioned problems, and its purpose is to provide a relay and socket that can be easily and stably mounted and that have high mounting strength.

0010

[Means for Solving the Problems] In order to achieve the above object, the relay and socket of the present invention are provided with engaging protrusions on both sides of the relay, and the arm for positioning when installing and inserting the relay into the socket. A guide groove for slidingly guiding the engaging protrusion is provided in the guide groove, and a locking pawl for locking the engaging protrusion is formed in the guide groove along with the side surface thereof.

[0011]

[Function] The relay and socket of the present invention are provided with engaging protrusions on both sides of the relay, and a guide groove for slidingly guiding the engaging protrusions in the arm portion for positioning when installing and inserting the relay into the socket. Since the relay is provided, the relay can be stably positioned and mounted on the socket, and a locking pawl is formed in the guide groove along with the side surface thereof to lock the engagement protrusion. High vibration and shock resistance can be achieved even when vibrations and shocks are applied from any direction.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, reference numeral 2 denotes a relay, which houses a relay main body 1 electrically connected to a plurality of relay terminals 5 extending from below. Engagement protrusions 3, 3 are integrally formed below both longitudinal side surfaces 2a, 2a of the relay 2, and are slidably guided by guide grooves 8, 8 of a socket 6, which will be described later. Slanted surface portions 3a, 3a are formed. Incidentally, above the engagement protrusions 3, 3, protrusions 4, 4 are formed at a predetermined distance to serve as a fulcrum when the relay 2 is removed.

Reference numeral 6 denotes a socket, which is made of a molded material such as synthetic resin, and has flexible arms 7, 7 integrally protruding from both sides. A plurality of holes 6 are formed at predetermined intervals in the middle of the socket 6.
b, in which a terminal 11 whose upper part has a blade receptacle shape as shown in FIG.
It is designed to be connected to The arm portions 7, 7 include
Guide grooves 8, 8 are formed extending from the upper end toward the surface 6a of the socket 6, and the intermediate bottom surface of one of the guide grooves 8 engages with one of the engagement protrusions 3 when the relay 2 is installed. A locking pawl 9 for holding the relay 2 is integrally provided. Note that it is sufficient to form this locking claw 9 in one guide groove 8 in order to obtain normal vibration resistance and impact resistance, but in order to obtain durability under more severe conditions, It may be provided in both guide grooves 8. Further, a notch groove 6c is provided in the bottom corner of the socket 6, so that when the socket 6 is mounted with high density by soldering 14 adjacent to the printed circuit board 13 as shown in FIG. It is configured to prevent solder flux from creeping up along the sides of 6.

Next, the case where the relay 2 is attached and mounted to the socket 6 will be explained. After positioning the relay 2 on the socket 6, lower the relay 2 and touch the side surface 2a of the relay 2.
, 2a are engaged with the guide grooves 8, 8 of the socket 6, and the socket 6 is further lowered. In this case, since the engaging protrusions 3, 3 are slidingly guided by the guide grooves 8, 8, it is possible to prevent the relay 2 from shifting in the left-right, front-back, and front-back directions, and the relay 2 can be stably and reliably mounted in the socket 6. Therefore, the relay terminal 5 can be easily connected to the blade receiving part of the external terminal 11 by simply pressing down the relay 2 from above.

As the relay 2 is further lowered,
One of the engaging protrusions 3 passes over the locking claw 9 provided in the guide groove 8 and is locked to the lower end of the locking claw 9, and in this state, the back surface of the relay 2 comes into contact with the front surface 6a of the socket 6. The installation is complete. In this state, both engaging protrusions 3,
3 is in contact with both side surfaces of the guide grooves 8, 8 so as not to shift, and one of the engaging protrusions 3 is locked at the upper part by a locking claw 9, and is firmly attached. The mounting strength is increased. Therefore, the impact applied from above,
The locking pawl 9 can withstand vibrations, and the vibrations and shocks applied in the straight line connecting both arms 7, 7 can be withstood by both arms 7, 7. Both arm parts 7, which have conventionally had low durability, 7, the guide groove 8,
8, it is possible to obtain high vibration resistance and impact resistance in all directions.

[0017]

As explained above, the relay and socket of the present invention are provided with engaging protrusions on both sides of the relay, as well as engaging protrusions on the arms for positioning when the relay is mounted and inserted into the socket. A guide groove is provided to guide the relay in a sliding manner, so the relay terminal does not fit into the external terminal of the socket or come off when mounting the relay, unlike conventional methods, and the relay can be stably and reliably positioned to the socket. It can be mounted and mounted, and a locking pawl is formed in the guide groove along with its side surface to lock the engagement protrusion, so that high durability can be obtained even when vibrations and shocks are applied from various directions. This eliminates the need for a direction that is vulnerable to vibrations and shocks as in the past, and provides high mounting and mounting strength.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention with a relay removed;

[Fig. 2] Similarly, a sectional view taken along line A-A in Fig. 1;

FIG. 3 is a partially cross-sectional side view showing the adjacent mounting state;

FIG. 4 is a perspective view showing a conventional example;

[Fig. 5] Similarly, A1-A1 sectional view in Fig. 4,

[Figure 6]
Similarly, a side view showing the relay before installation,

FIG. 7 is a partially cross-sectional side view showing an example of the relay after it is installed;

[Explanation of symbols]

1 Relay body 2 Relay 3 Engaging protrusion 5 Relay terminal 6 Socket 7, 7 Arm 8 Guide groove 9 Locking claw 11 Terminal

Claims (1)

[Claims] 1. A relay that houses a relay main body having a relay terminal, and a socket that has protruding arms at both ends and has a plurality of terminals connected to the relay terminal, and has a socket on both sides of the relay. An engaging protrusion is provided on the arm, and a guide groove for slidingly guiding the engaging protrusion is provided in the arm portion for positioning the relay during installation and insertion, and the engaging protrusion is locked in the guide groove together with the side surface thereof. A relay and a socket characterized by forming a locking claw.