JPH08222106A - Fitting structure for box relay - Google Patents

Abstract

PURPOSE: To miniaturize a relay box by providing a removing jig capable of easily removing a box relay in the relay box for a vehicle provided with a relay socket having a wall face protecting the relay terminal of the box relay. CONSTITUTION: A pair of plate-like side plates 12, 13 are erected on the fitting board of a box relay 1 across the connection face 11 of the box relay 1, a recess 18 is formed on the inside face of one side plate 12, and a recess 19 is formed at the place of the connection face 11 facing the bottom section of the box relay 1 continuously with the recess 18. An extracting jig 20 is constituted of an L-shaped section 21 matched with an L-shaped recess made of the recess 18 and the recess 19 and a finger hook section 22 formed at the upper section of the L-shaped section 21. The box relay 1 can be easily removed by the extracting jig 20 although the box relay is covered by a pair of plate-like side plates 12, 13, and no finger insertion space is required for holding the box relay 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box relay mounting structure in a relay box used for electrical equipment of automobiles and the like.

[0002]

2. Description of the Related Art Conventionally, a plurality of relays have been used for automobile electrical equipment. A plurality of small relays are housed in a relay box and fine wiring is provided inside the relay box. This facilitates assembly work and maintenance.

A small box relay 1 shown in FIG. 6 has a box shape, and in FIG.
Is projected. Further, as shown in FIG. 6 (b), there is also one in which a skirt 5 that surrounds the periphery of the terminal and is shaped to match the outer shape of the corresponding relay socket 4 (see FIG. 5) is attached. In order to mount the box relay 1 in the relay box, the relay sockets 4 shown in FIG. 5 are arranged side by side on a plurality of ribs 6 which are vertically and horizontally extended and formed in a mesh shape. The lead wire 8 crimped to the terminal 7 comes out from the back side of the relay socket 4. Then, the box relays 1 are intensively wired in the relay box. In addition, a protrusion 9 for locking the skirt 5 is formed on the side surface of the relay socket 4.

Further, since the contacts of the box relay 1 are consumed, the box relay 1 is often removed because maintenance is required. In this case, as shown in FIGS. 7 and 8, the worn box relay 1 is replaced by inserting a finger (thumb and index finger) a between the box relays 1 arranged side by side, sandwiching the box relay 1 and pulling it up. .

[0005]

By the way, in order to reduce the size of the relay box, in the above-mentioned relay box, the space between the relays is taken into consideration. Therefore, even if the box relay 1 is changed to a small one, the finger a The space for entering was kept at the minimum necessary interval. Due to this shape, the rib 6 between the relay sockets becomes short and the rib 6 becomes hard. This makes the movement of the finger cramped when pulling out the box relay 1. On the other hand, the box relay 1 has terminals 7 of 4 poles or 5 poles or more, and a large force is required when inserting / removing. For example, if the separating force of the box relay 1 is reduced to 10 kg · f or 5 kg · f or less, there is a risk of contact failure of the terminal 7, so that a structure requiring more force is adopted.

It is quite difficult to pull out the box relay 1 from the thus hardened relay box, and further, a relay without a skirt (see FIG. 6).
In the case of (a)), in order to prevent the terminals from twisting, the wall surrounding the relay covers the relay, making it more difficult to pull out. Therefore, since the relay installation space is widened so that the relay body can be more reliably pinched by the fingers and a space for inserting the fingers is provided, the size of the relay box must be increased. As a countermeasure against this, for example, a groove for holding is formed in the upper part of the relay body,
Some of them are designed so that they can be pulled out by hanging the jig on the groove (see Japanese Utility Model Laid-Open No. 6-13040), but the relay needs to be modified, and new problems such as where to put the groove will occur. .

It is an object of the present invention to provide a box relay mounting structure in which a box relay can be easily removed in a case where a wall surface for protecting relay terminals is mounted to a relay socket arranged in a narrow space such as a relay box. And

[0008]

In order to achieve the above-mentioned object, the present invention has a pair of plate-shaped side plates standing upright on a mounting plate of the box relay so as to sandwich the connection surface of the box relay, and the one side plate. A groove or a recess is formed on the inner surface of the connection surface, and a recess is formed continuously with the connection surface at a portion of the connection surface facing the bottom of the box relay.

Further, in the above structure, the L-shaped portion is aligned with the L-shaped concave portion along the inner surface of the one side plate and the connection surface, and the finger hook portion is formed on the upper portion of the L-shaped portion. It is characterized by being equipped with a drawing jig.

[0010]

The present invention is configured as described above, and the box relay inserted in the connecting surface is surrounded by the plate-like side plate,
Correct the relay posture and prevent the relay terminals from bending even if the relay does not have a skirt. Further, by using a rod-shaped pulling tool having a tip or the like formed with a claw, the concave portion facing the bottom of the box relay is utilized, and the lower end of the box relay is hooked by the claw to remove the relay.

The L-shaped extraction jig provided in this mounting structure is inserted into the recess facing the bottom of the box relay, and a finger is attached to the finger-holding portion to pull up the box relay. At this time, the opposing side plates serve as guides for upward movement of the box relay.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The mounting structure of the box relay 1 shown in Fig. 1 is the connection surface arranged on the mounting board 10 installed in the relay box.
A pair of side plates 12 and 13 are erected around 11 and the box relay 1 can be mounted therein. That is, the connection surface 11 has an insertion port 14 for the terminal 3 of the box relay 1 (see FIG. 2). In the embodiment, since the side surface of the relay body 2 has the projection 15, the pair of side plates 12 and 13 is not continuously formed. However, if the projection 15 is not formed, the side surfaces 12 and 13 are continuously formed into a rectangular shape. Is also good.

Each of the pair of side plates 12 and 13 is formed in a U shape so as to face each other so as to surround the box relay 1, and a triangular reinforcing rib 16 is formed on the outer side of the box relay 1. Ribs 17 extending in the height direction on each side
Are formed. A plurality of ribs 17 on one side plate 12 are formed, and a recess 18 between the ribs serves as an insertion passage for a jig to be described later.
The upper end of this portion is cut out. Also, the recess
The connection surface 11 at the lower end 18 is also provided with a recess 19 facing the bottom surface of the box relay 1. It should be noted that the protruding ribs 17 may not be formed on the inside of the side plates 12 and 13, and a plurality of grooves may be formed on the vertical surface.

As shown in FIGS. 2 and 3, when the box relay 1 is mounted, the pair of side plates 12 and 13 covers the surroundings, so that the terminal 3 is twisted when the box relay 1 is removed. Will be protected. Also,
In this case, by using a rod-shaped pulling tool having a nail or the like formed at the tip, the recess 19 facing the bottom of the box relay 1 is used.
Using, use the hook to hook the lower end of the box relay 1 and lift it up to remove this relay.

Therefore, the jig 20 shown in FIG. 1 is added to this mounting structure. This jig 20 has a plate-like shape in which one end is bent into a key shape and the other end is curved to the opposite side. Specifically, the recess 18 provided on one side plate 12 and the recess provided on the connection surface 11 are provided.
L-shaped part that can enter along the L-shaped concave part composed of 19 and
21 and a finger hook portion 22 formed on the upper portion of the L-shaped portion 21.

By using this jig 20, as shown in FIG. 4, the tip of the jig is hung on the bottom of the box relay 1, and the finger hook 22 is put on the finger to pull it upward. At this time, a moment (component force) is generated on the side opposite to the jig 20, but the upper end of the box relay 1 on the opposite side is held by the finger a to receive this force. Due to the distribution of these force relationships, many ribs 17 on the jig set side are set from the opposite side. A rib is provided on the plane of the side plate to reduce the friction coefficient μ between the box relay 1 and the side plates 12 and 13. From the above,
By using the jig 20, it is easy to pull out the box relay 1 and it is not necessary to insert the finger a between the box relays, so that the installation interval of the relays can be made close to several mm.

[0017]

Since the present invention is configured as described above, even if the mounting board installed in the relay box is provided with the side plate for protecting the relay terminals, the installed box relay is It can be easily removed by using a jig, and even if the relay installation interval is reduced by using a jig, it is easy to remove. Further, since the jig shape is simple and the manufacturing cost can be reduced, the relay box can be downsized.

[Brief description of drawings]

FIG. 1 is a development view of a box relay mounting structure according to an embodiment of the present invention.

FIG. 2 is a sectional view of the box relay shown in FIG. 1 when mounted.

FIG. 3 is a plan view showing a positional relationship between the box relay shown in FIG. 1 and a side plate.

FIG. 4 is a schematic diagram illustrating an operation of extracting the box relay shown in FIG.

FIG. 5 is a perspective view of a socket portion in a conventional relay box.

FIG. 6 is a perspective view showing two shapes of a conventional box relay.

FIG. 7 is an explanatory diagram when the box relay is removed from the socket shown in FIG.

8 is a side view showing a state of upward movement of the box relay shown in FIG. 7.

[Explanation of symbols]

 1 Box relay 10 Mounting board 11 Connection surface 12, 13 Pair of plate-shaped side plates 18 Recessed portion 19 Recessed portion 20 Extraction jig 21 L-shaped portion 22 Finger hook

Claims (2)

[Claims] 1. A pair of plate-shaped side plates is erected on a box relay mounting board so as to sandwich a connection surface of the box relay,
A groove or a recess is formed on the inner surface of the one side plate with respect to the connection surface, and a recess is formed continuously with the connection surface at a portion of the connection surface facing the bottom of the box relay. Box relay mounting structure. 2. A pulling-out jig comprising an L-shaped portion aligned with an L-shaped concave portion along the inner side surface of the one side plate and the connection surface, and a finger hook portion formed on an upper portion of the L-shaped portion. The box relay mounting structure according to claim 1, further comprising: