JPS6339827Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a stationary fire alarm system that receives a detection signal from a fire detector that detects a fire, and lights up an indicator light based on the detection signal to notify the occurrence of a fire. Regarding the receiver.

Conventionally, the housing of the receiver of a stationary fire alarm system is configured vertically, and the main body of this housing usually includes a terminal board for connecting the external line to which the fire detector is installed, and a terminal board for connecting the external line to which the fire detector is installed. An electric circuit consisting of a power supply unit that supplies power to the detector and receiver, a receiving circuit that receives a detection signal from the fire detector, and a processing circuit that performs processing such as lighting an indicator light based on the detection signal. Furthermore, the door of the case was provided with a display section equipped with an indicator light to indicate fire, and an operation section equipped with operation switches for fire activation test, bell ringing stop, etc.

On the other hand, the receiver of this stationary fire alarm equipment (hereinafter simply referred to as receiver) may be equipped with, for example, a disconnection detection circuit that detects disconnection of each line to which the detector is connected, depending on the usage situation. Because additional functions may be added, the height and size of the receiver housing (hereinafter referred to as height including size) will vary depending on whether or not additional functions are added. It was not possible to standardize the height of the machine casing. In order to standardize the height of the receiver housing,
It would be better to standardize the height of the receiver casing by providing a space in advance to accommodate additional functions, but in this case, for receivers that do not require additional functions, there is space to accommodate additional functions. The drawback was that it wasted time and increased the cost of the receiver housing.

In addition, as mentioned above, since the door in this type of receiver housing is vertically long, a member that also serves as a reinforcing plate to prevent distortion of the door plate is provided in areas other than the area where the display section and operation section are provided. If not, the door plate could become distorted.

The present invention was developed in view of the above-mentioned drawbacks, and a mounting hole for a printed circuit board for additional functions is pre-drilled in the lower part of the inside of the door of the receiver housing, which is not equipped with a display section or an operation section. By providing a mounting plate that also serves as a reinforcing material, the space at the bottom of the inside of the door can be used effectively, and the height of the receiver housing can be standardized while remaining at the conventional height, while also preventing the occurrence of distortion of the door. The purpose of the present invention is to provide a receiver for fire alarm equipment that can prevent fire alarms.

The present invention will be explained below based on embodiments shown in the drawings.

Figure 1 is a front view of one embodiment of a receiver for a stationary fire alarm system, Figure 2 is a front view of the receiver shown in Figure 1 with the door open, and Figure 3 is a mounting plate for the printed circuit board. A perspective view of the figure is shown. In the drawings, 10 is a main body of the receiver, 20 is a door of the receiver attached to the main body 10 so as to be openable and closable, and the receiver housing is formed by the main body 10 and the door 20.

The main body 10 of the receiver is formed vertically, and from the upper part to the lower part of the main body, a plurality of terminal boards 11 for external lines connected to a fire detector (not shown) are arranged on the outside. A printed circuit board 12 is attached to the electric circuit, which includes a receiving circuit that receives a detection signal from a fire detector, and a processing circuit that performs processing such as turning on an indicator light, which will be described later, based on the signal from the receiving circuit. be. Further, a power supply section 13 consisting of a transformer, a fuse, etc. for supplying power to the fire alarm and the electric circuit is provided at the lower part of the main body 10 of the receiver. In addition, 14 is a duct for an external line provided on the inner side of the main body, 15 is an internal line duct through which an internal line for electrical connection inside the receiver is inserted, and 16 is a duct drilled in the lower part of the back of the main body 10. This is a wire passage hole for an outside line. The main body 10 of the receiver formed in this way is
It is mounted on a channel base 17.

The door 20 of the receiver is formed vertically and is attached to the front surface of the main body 10 with a hinge 21 so as to be openable and closable. A display part 22 is fitted in the upper part of the door 20, and has a plurality of indicator lights that turn on in the event of a fire based on signals from the processing circuit of the main body 10, and a display part 22 with a plurality of indicator lights that lights up in the event of a fire based on the signal from the processing circuit of the main body 10 is installed in the center part. An operating section 23 equipped with an operating switch, a line selection switch, a handset, etc. is fitted. In addition, on both sides of the inner lower part of the door 20, there are spacers 2 having a U-shaped cross section.
4 are fixed vertically by welding or the like in a state where they face each other, and a mounting plate 25 is mounted on the top of this spacer 24.
has been erected. The mounting plate 25 is pre-drilled with holes 26 for mounting a printed circuit board in a matrix pattern over the entire surface, and is equipped with additional functions such as a disconnection detection circuit for detecting disconnection of each line to which the sensor is connected. A board 27 is mounted. The lower part of the inside of the receiver door 10 is a conventional space, and there is sufficient space for installing the mounting plate 25. Also, when the mounting plate 25 is installed in this way,
The mounting plate 25 prevents the plate of the door 10 from being distorted and also functions as a reinforcing member.

Note that the shape, fixing method, etc. of the spacer 24 are not limited to the above-mentioned example, and the shape or size of the mounting plate 25 is also not limited to the above-mentioned example. That is, for example, the width of the mounting plate 5 can be made half of that shown in the figure, and it can be mounted vertically in the center vertical direction at the inner lower part of the door 10. In this case, the mounting plate 25 also serves as a reinforcement for the door 10. It fully demonstrates its function as a material and prevents distortion of the plate of the door 10.

As described above, according to the present invention, in a receiver for a stationary fire alarm system, a mounting plate for a printed circuit board for additional functions is provided at the inside lower part of the door of the receiver, thereby freeing up conventional unused space. It is being used effectively. In addition, since this type of receiver is vertically long, if the space under the door becomes large, the door plate will become distorted, so it was necessary to install a reinforcing material, but in this invention, the mounting plate functions as a reinforcing material. It also demonstrates
There is no need to install a reinforcing plate. In other words, the present invention not only effectively uses the unused space at the bottom of the inside of the door as a mounting plate for the printed circuit board for additional functions, but also effectively uses the mounting plate for the printed circuit board for additional functions as a reinforcing plate for the door. are doing. Moreover,
This has the advantage that the receiver housing can be standardized while maintaining its conventional height.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the stationary fire alarm system receiver of the present invention, Fig. 2 is a front view of the receiver shown in Fig. 1 with the door open, and Fig. 3 is a printed circuit board. A perspective view of the mounting plate is shown. 10...Receiver body, 11...Terminal board, 12
...Electrical circuit printed circuit board, 13...Power supply section,
20...Receiver door, 22...Display section, 23...
Operation unit, 24...Spacer, 25...Mounting plate, 2
6... Hole for mounting a printed circuit board, 27... Printed circuit board for additional functions.

Claims (1)

[Scope of utility model registration request] A main body and a door attached to the main body so as to be openable and closable are formed into a vertically elongated casing, and inside the main body, there is a power supply section consisting of a transformer, a fuse, etc., a terminal board for connecting an external line, and a fire detection signal. Receiving fire alarm equipment, which is provided with an electric circuit section consisting of a receiving circuit, etc. for receiving the signal, and also provided with a display section equipped with an indicator light for indicating a fire, and an operation section equipped with an operation switch, etc., on the door. In the machine, the above-mentioned display section is provided at the top of the above-mentioned door, the above-mentioned operation section is provided at the center part, and a mounting plate that also serves as a reinforcing material is provided at the inside lower part of the above-mentioned door with holes for attaching a printed circuit board pre-drilled therein. A receiver for fire alarm equipment characterized by: