JPH05191065A - Confirming device for insertion of substrate - Google Patents

Abstract

PURPOSE:To enable a connector used for connecting a substrate with a back board to be protected against connection failure and to protect the substrate against damage by a method wherein an insertion state inspection mechanism is provided to the connector. CONSTITUTION:When a substrate 1 and a back board 2 are normally connected together, a signal line connector 32 is connected to a connector pin 42 first to carry out a conventional signal line connection way. Thereafter, insertion state detection pins 311a and 311b of insertion state detection mechanism connectors 31a and 31b are connected to connector pins 41a and 41b, and the state of connections is shown on displays 6a and 6b. For instance, if the substrate 1 is partially connected to the back board 2 on one side, the insertion state detection pin 311b and the connector pin 41b of an insertion state detection mechanism 5b on a partial connection side are not brought into contact with each other. Therefore, the display 6b is not turned ON on a partial connection side. Therefore, it is detected that the side of the substrate 1 on the insertion state detection mechanism 5b is incompletely connected. It can be also detected that connector pins are bent or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board insertion confirmation device for detecting the insertion state when a board is inserted into a backboard.

[0002]

2. Description of the Related Art In various electronic devices, it is widely practiced to disperse and mount circuits on a removable substrate in order to facilitate maintenance and inspection work. In such a device, a plurality of substrates are usually attached to a main substrate called a backboard. Also, in general,
A male connector is provided on the backboard side and a female connector is provided on the substrate side, and the board and the backboard are electrically connected by these connections.

[0003]

However, conventionally, there has been no particular means for confirming the connection between the substrate and the backboard. That is,

In a typical configuration, the backboard is located in the rear part of the housing, and a plurality of boards are installed in parallel so that a book is just inserted into the bookshelf.
The space of a single substrate is very small. Therefore, when a certain board is inserted, the connector of that board is hidden behind the other board, and it is difficult to confirm the insertion state from the outside of the housing. It is difficult to visually confirm whether there is any.

It is difficult to confirm whether the female connector and the male connector (pins inserted into the female connector) are properly connected. That is, when the insertion pins were displaced in the entire row with respect to the female connector, the connector seemed to be in a normally connected state, and the displacement could not be confirmed.

Even if the insertion pin is bent and is not properly connected to the female connector, it cannot be confirmed for the same reason as above. As a result, there is a possibility that signal connection failure or damage to the board or the device may occur due to power-on after the board is inserted.

The present invention has been made in order to solve the above conventional problems, and provides a board insertion confirmation device capable of easily confirming whether or not a board and a backboard are normally connected. The purpose is to

[0008]

A board insertion confirmation device of the present invention comprises a board, a backboard into which the board is inserted and removed,
A board-side connector and a backboard-side connector, which are provided on each of the board and the backboard to form a pair, and electrically connect the board and the backboard by their connection, and the board-side connector and the backboard. An insertion state detection mechanism provided on the side connector for detecting whether or not the board and the backboard are normally connected, and a display unit for displaying based on a detection state of the insertion state detection mechanism are provided. It is characterized by that.

[0009]

In the board insertion confirmation apparatus of the present invention, the board side connector for connecting the board and the backboard and the backboard side connector are provided with the insertion state detecting mechanism for detecting the connection state thereof. .. Therefore, when the connection between the substrate and the backboard is incomplete, the incomplete connection state is detected by the insertion state detection mechanism. Then, the detection result is displayed on the display unit. Therefore, it is possible to easily confirm the connection state between the substrate and the backboard, and avoid a signal connection failure or the like when the power is turned on.

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a board insertion confirmation device of the present invention. The apparatus shown in the figure includes a board 1, a backboard 2, a board-side connector 3, a backboard-side connector 4, insertion state detection mechanisms 5a and 5b, and display sections 6a and 6b.

The substrate 1 is mounted with an electronic circuit or the like, and the electronic circuit is configured to be electrically connected to the backboard 2 via a signal line connector 32 described later. The backboard 2 is a main board provided in a housing (not shown) and has a backboard-side connector 4. The board side connector 3 is the insertion state detection mechanism connectors 31a and 31b.
And the signal line connector 32, and the backboard side connector 4 includes connector pins 41a, 41b and 42 for connecting to the insertion state detection mechanism connectors 31a and 31b and the signal line connector 32. Become. The insertion state detection mechanisms 5a and 5b include insertion state detection mechanism connectors 31a and 31b on the board side connector 3 side,
It is composed of connector pins 41a and 41b on the backboard 2 side.

FIG. 2 shows the insertion state detecting mechanism connectors 31a and 31b in the insertion state detecting mechanisms 5a and 5b. The insertion state detection mechanism connectors 31a and 31b
Is composed of 3 pins × 3 rows of female connectors. Further, the insertion state detecting mechanism connectors 31a and 31b
Have no contacts except the one in the center (or
All nine have the same contactor, but the signal line is not connected except for the central one). Furthermore, this contactor (hereinafter, insertion state detection pins 311a, 311b
Is a connector pin 41a on the backboard 2 side,
The contact stroke with 41b (male connector) is formed shorter than the contactor of the signal line connector 32.

FIG. 3 is a diagram showing a pin connection state of the insertion state detection mechanism 5 and the signal line connector 32. That is, FIG.
(A) indicates connectors 31a, 31 for insertion state detection mechanism
3B is a cross-sectional view of the signal line connector 32, and FIG. 3C is a connection state of the insertion state detection mechanism connectors 31a and 31b and the connector pins 41a and 41b. Sectional drawing, (d) is a connection state sectional view of the connector 32 for signal lines and the connector pin 42. The signal line connector 32 is composed of 3 pins × n rows, and as shown in FIGS. 3B and 3D, the contactor is longer than the contactors of the insertion state detection mechanism connectors 31a and 31b. Is configured.

The display portions 6a and 6b are made of light emitting diodes, and the insertion state detecting mechanisms 5a and 5 are provided from the backboard 4 side.
Power is supplied via b, and it is configured to light up. FIG. 4 shows a circuit example for the display units 6a and 6b. That is, the one end side of the display portion 6a (6b) is connected to the insertion state detection mechanism connector 31 via the resistor 6c (6d).
Insertion state detection pin 311a (311b) of a (31b)
, And the other end is grounded on the backboard 2 side via a ground pin. With such a configuration, the voltage from the backboard 2 side is applied via the insertion state detection mechanism connectors 31a and 31b, and the display unit 6a (6
Lighting of b) is performed.

Next, the operation of the board insertion confirmation device having the above-mentioned structure will be described. First, when the board 1 and the backboard 2 are normally connected, the signal line connector 32 and the connector pin 42 are first connected, and normal signal line connection is performed. After that, the insertion state detection mechanism connectors 31a, 3
The insertion state detection pins 311a and 311b of 1b are connected to the connector pins 41a and 41b, and the display portions 6a and 6b are connected.
Is displayed.

Next, the case where the substrate 1 and the backboard 2 are not normally connected will be described. FIG. 5 is a diagram showing each example when the substrate 1 and the backboard 2 are not normally connected.

When the connection on one side is incomplete {FIG. 5 (a)} If the insertion on one side is incomplete, the insertion state detection pin 311b and the connector pin 41b in the insertion state detection mechanism 5b on the incomplete side Since and do not contact, the display portion 6b on that side does not light. Therefore, one side (insertion state detection mechanism 5
It can be detected that the connection on the b side) is incomplete.

Connector pins 41a, 41b and 42
If any of the pins are bent {Fig. 5
(B)} In this case as well, because of the bent connector pin 421, the insertion state detection pin 31 in the insertion state detection mechanism 5b on one side is
Since 1b and the connector pin 41b do not contact, the display portion 6b on that side does not light. This detects that the connection is incomplete.

When the connector position is shifted and inserted {FIG. 5 (c)} The insertion state of the substrate 1 and the backboard 2 is apparently normal, but the connector position is displaced, and therefore both are inserted. The connection state of the state detection mechanisms 5a and 5b becomes incomplete.
That is, the connection between both connector pins 41a and 41b and the insertion state detection pins 311a and 311b is not performed. Therefore, the display portions 6a and 6b do not light up, and it can be confirmed that the insertion is not normally performed.

In the above embodiment, the insertion state detecting mechanism 5
Although a and 5b are provided at two locations on both sides of the substrate 1, the configuration is not limited to this, and for example, only one location at the center or three or more locations may be provided. Further, the display portions 6a and 6b are also provided on the side of the substrate 1 in the above embodiment, but they may be provided on the side of the housing on which the backboard 2 is installed. The same effect as can be obtained. Further, the display unit 6a,
6b is not limited to the light emitting diode, and may have another configuration as long as it has an equivalent function.

[0021]

As described above, according to the board insertion confirmation apparatus of the present invention, the connector for connecting the board and the backboard can detect the connection state between the board and the backboard. Since the insertion state detection mechanism is provided and the detection result of the insertion state detection mechanism is displayed on the display unit, the connection state between the substrate and the backboard can be easily and surely confirmed. As a result, the connection between the substrate and the backboard can be perfected, and it is possible to avoid defective connection of signals and damage to the substrate and the apparatus body when the power is turned on.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a board insertion confirmation device of the present invention.

FIG. 2 is a perspective view of an insertion state detection mechanism connector in the board insertion confirmation device of the present invention.

FIG. 3 is an explanatory view of a connection state of the insertion state detection mechanism connector and the signal line connector in the board insertion confirmation device of the present invention.

FIG. 4 is a circuit diagram showing a circuit example relating to a lighting operation of a display unit in the board insertion confirmation device of the present invention.

FIG. 5 is an explanatory diagram of an imperfect connection state in the board insertion confirmation device of the present invention.

[Explanation of symbols]

 1 board 2 backboard 3 board side connector 4 backboard side connector 5a, 5b insertion state detection mechanism 6a, 6b display section

Claims (1)

[Claims] 1. A substrate, a backboard into which the substrate is inserted and removed, and a pair provided on each of the substrate and the backboard, and by connecting them, electrical connection between the substrate and the backboard is performed. A board-side connector and a backboard-side connector to be performed; an insertion state detection mechanism which is provided in the board-side connector and the backboard-side connector and detects whether the board and the backboard are normally connected; A board insertion confirmation device, comprising: a display unit that displays based on a detection state of a state detection mechanism.