JPS5969892A - Temperature sensor for fire preventor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature sensing device that automatically activates a disaster prevention cage by sensing an abnormal temperature rise both inside and outside of a kμ object.

Conventionally, temperature sensing devices for so-called disaster prevention equipment that detect a fire at its early stage, issue an alarm, or issue a command to close shutter doors, etc. of fire prevention compartments have been used.
For example, a single sensing body installed at a predetermined position senses heat and expands when it reaches a certain temperature v, closing a preset contact and sending a signal. A temperature sensing device such as a fixed temperature spot type that activates disaster prevention equipment by applying an electric current, or an air tube type sensor installed on the ceiling etc., can be used to detect the sudden temperature rise in the air in the event of a fire. expand,
Differential distribution temperature sensing devices are known that use this expansion force to press a detection part (diaphragm) installed at the tip of the air pipe, close a preset contact, and send a signal current to activate disaster prevention equipment. It is being However, in the former case, since point sensing is performed using a single sensing element, the sensing will not work unless heat is directly applied to the sensing element, and it is necessary to install a large number of sensing devices. Since it is based on line sensing, it has the disadvantage that the sensing cannot be activated unless a sudden heat is applied to a certain area of the sensing body from the force U.
In either case, an abnormal temperature rise can be detected only by a preset contact point, and the so-called point sensing or fc is line sensing, and the sensing range is extremely narrow.

The drawback was that disaster prevention equipment could not be operated effectively and accurately.

Moreover, the latter type of temperature sensing device not only requires a great deal of labor for piping and installation work, but also damages existing air pipes during interior work for interior decoration, etc. In many cases, the sensor does not operate, and since this device is configured to only detect a sudden rise in temperature,
When the nitrogen inside the pipe expands to a certain temperature due to a gradual temperature rise, it becomes impossible to detect any abnormal temperature rise.
Therefore, it was unsuitable for outdoor use.

In view of the above-mentioned circumstances, the present invention has been devised to eliminate these drawbacks. In order to detect all abnormal temperature rises at any position in the surface area, the plate-like member is laid in the opening direction, and the temperature is sensed over a wide range. As a sensing surface, it can expand the range of sensing operation, and can accurately sense temperature rises at any location on the sensor and activate disaster prevention equipment, regardless of whether it is inside or outside the building. The object of the present invention is to provide a temperature sensing device for disaster prevention equipment that can be easily installed in a desired location.

Continuing the configuration of the present invention with reference to the embodiment shown in the drawings, 1 is a temperature sensing device installed in an opening of a building, and the temperature sensing device 1 includes a plate member 2 such as an A-flank body, This plate-shaped member 20 is constructed with a support plate laid in the direction of the surface. The plate-like member 2 includes two sheets of transparent synthetic resin 2a,
On the other hand, the transparent synthetic resin plate 2b has a concave groove 3 spirally carved from the edge toward the center on the surface facing the transparent synthetic resin plate 2a. Further, the sensing body 4 is composed of so-called 4-metal wings formed by bonding two types of 4-electroconductive metal strips having different coefficients of thermal expansion, and a contact element 4b made of a single conductive metal strip.夛、ノノイMETAL 4
Contact elements 4a and 4b are disposed on the outer circumferential side of the groove 3 and facing each other at appropriate intervals on the inner circumferential side of the groove 3, respectively.

The end of the bimetal 4a and the contact element 4b located at the center of the spiral is electrically insulated by an insulator 5, and a lead wire terminal 6 is attached to the other end. .

In addition, in the above embodiment, the bimetal 4af concave i'
13, the contact element 4b is located on the inner circumferential side, but the positional relationship between the two elements may be reversed, and the bimetal 4a forming the sensor body 4'ft may be Although JAf is shown, it is not limited to this, but it is also possible to use a single thick metal wire or a metal wire with a single thermal expansion barrier, and the contact element 4b as a metal wire with a small coefficient of thermal expansion. Also work.

Further, the lead wire pull-out terminal 6 may be pulled out from the desired position of the sensing body 4 installed in the spiral dog.

In the above embodiments, all the sensing bodies 4 are shown curvedly laid in a spiral shape, but they may be laid curvedly in a meandering manner. The shape is not limited to a curved shape as long as an abnormal temperature rise can be detected at any position in the surface area. In addition, the sensor warehouse 40
The sensing function of the sensing body 4 will be even better if a large number of through holes are preferably formed in the transparent synthetic resin plate 2a which is polymerized on the surface side.

As shown in FIGS. 3 and 4, the temperature sensing device constructed in this way will be described in detail below. , 8 is a sash attached to an opening in a building, and a glass plate 9 is fitted into the slat 78 in a layered manner, and the outdoor surface of this glass plate 9 has two series of tE.
A! Sensing devices 1 are installed in series. The two temperature sensing devices 1 are connected to IJ-F wires drawn out from desired positions of the respective sensing bodies 4 to terminals 6, 6 via connecting wires 7, 7'. Reference numeral 10 denotes a general electric fire prevention shutter attached to an opening in a building. A flexible winding shaft 12 and a guide rail 1 provided outside 1110 of the sash 8 by being electrically wound or rewound on the winding shaft 12.
3, and a shutter curtain 14 that moves up and down along the line 3. The rotation of the hoist 7 and 12 is performed by the forward and reverse movement of a drive motor installed in the opening/closing device 15, but normally the opening/closing operation is performed by an opening/closing switch connected to the opening/closing machine 15. It has become.

The opening/closing machine 15 is interlocked with an automatic closing mechanism 9 for automatically closing the fire shutter 10 in the event of an emergency such as a fire.
The brake 15a of the shutter curtain 14 is fully opened to allow the shutter curtain 14 to fall under its own weight, and the automatic closing mechanism 16 is configured with a control 617 that applies a starting voltage to the automatic closing device 16. are connected via. The automatic closing device 16 and the controller 17 may be of generally known type; for example, the opening/closing device 15 can be closed by moving the latch solate rearward due to the operation of a DC solenoid or the like.
Brake 15aVc series + [reta wire] r - crane l
5 b@The automatic closing device 16 configured to fully release the brake 15a by tensile operation also receives a fire signal from the temperature sensing device 1 (g), and the fire signal receiving circuit and control relay actuate the control relay. A control am composed of an automatic closing device control section or the like that supplies a starting voltage to the automatic closing device 16 through contacts may be used.

Next, the operation of the present invention constructed as described above will be explained in detail. Now that a fire has broken out, heat due to an abnormal rise in temperature is transmitted to the sensing element 4 of the temperature sensing device 1 layered on the glass plate 9 of the sash.
When the contact element 4b is applied to the contact element 4b, each inotal 4a of the sensing body 4 is bent due to thermal expansion, and the bent part contacts the contact element 4b to close the contact.

Therefore, a fire signal current flows through the controller 17 of the automatic closing mechanism, a starting voltage is applied to the automatic closing device 16, the brake 15a of the switch 15 is released, and the shutter curtain 14 automatically lowers to open the building. The area will be fully closed automatically to form a fireproof compartment and prevent the spread of fire.

In this case, in particular, in the present invention, the sensing body 4 is spirally laid in the direction of the surface of the plate-like member 20 consisting of a panel body, so that the entire surface area of the plate-like member 2 is the entire sensing surface. The innotal 4a expands no matter where the plate-like member 2 receives heat, and the contact element 4b has a structure in which the entire spiral VC layer functions as a contact. Therefore, compared to the conventional system that detects an abnormal temperature rise and activates all disaster prevention equipment by closing the preset contacts of the FC sensor, the sensing operation range has been expanded, and moreover, it can detect accurately. can activate the disaster prevention device. Moreover, the sensing body 4 is a plate-like member 2
By being laid in the direction of the surface of the sensor, it is possible to expand the range of the sensing body as described above, and it is possible to give an aesthetically pleasing appearance. It is capable of sensing abnormal temperature rises caused by external disasters not only indoors but also outdoors, without being affected by wind conditions or surrounding conditions, and automatically closes the 10ft fire shutter. Since the sensing body 4 is made of metal, the strength of the plate member 2 can be improved as if the sensing body 4 were made of wired glass.

The plate-like member 2 on which the sensing body 4 is installed is not limited to the transparent synthetic cutter A board as in the embodiment, but may also be a flannel body for glass, sound-absorbing boards used as ceiling materials, door panels, partition panels, etc. Alternatively, the disaster prevention equipment may be a fire door, a fire sprinkler, or a fire alarm instead of a fire shutter.

In order to eliminate all of this, the present invention is a temperature sensing device that senses abnormal temperatures and automatically activates disaster prevention equipment, and the temperature sensing device includes a sensing body and a plate-like member on which the sensing body is attached. Unfortunately, the above-mentioned sensing body was installed in the surface direction of the plate-like member in order to detect all abnormal temperature rises in any part of the surface area, so even though the sensing body is designed to sense all the temperature rises, The entire area 'ff of the plate-shaped member on which the sensing body is laid: It can be a sensing surface that senses an infinite number of continuous points. Therefore, even if the temperature rises at any position on the sensing body, the i of the sensing body
Since the part where ai has increased becomes a direct contact point, the sensing operation range can be expanded, and abnormal temperature rises can be accurately sensed and disaster prevention equipment can be automatically activated. Furthermore, since the sensing body is attached to a plate-like member, it is not possible to easily install it in all areas, both inside and outside the building, and it is therefore necessary to select the installation shape of the sensing body appropriately. It is an extremely useful design that is suitable for modern architecture and can demonstrate its full potential.

[Brief explanation of drawings]

The drawings show an example of a temperature sensing device for disaster prevention equipment according to the present invention, and FIG. 1 is a front view of the temperature sensing device;
Figure 2 is a side view of the same as above, B is an enlarged view of the main parts of the same, Figure 3 is a front view when attached to a fire shutter, and Figure 4 is a side view of the same. In the figure, 1.--Temperature sensing device, 2.--Plate member, 3.
・・Concave groove, 4・−・Sensor, 5・−Insulator, 6−・Lead wire extraction terminal, 7・・Connection wire, 8・−・Sash, 9−
・Glass plate, 10... Fire shutter, 11... Shutter case, 12... Visiting shaft, 13...
Guide rail, 14... - Shutter curtain, 15.
・・Opening/closing machine, 16-・・Automatic closing device, 17・・・Control g
There are 4 vessels. Patent applicant: Sanwa Shutter Industry Co., Ltd.
tlt, l) (method) Showa 58412 251
-1 '1 Uji' Yama 1 Zhao°・1 Kazuo Wakasugi 111s 1 11
ding'l: ty) ii1<・j昭ILL 57:1
Patent r1 No. 180238C3' Invention (1) f+
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jf! Nishi-Shinjuku 2-1, Yojuku 1-ku, Tokyo
No. 1 Y+ fjy Sanwa Nyasota Egyo Co., Ltd. Representative Takashi Takayama 1st generation 1111 people 〒112! i
, i+li iE 1 Yurei's [1i'I'
:1rHII 5 B I [February 22 I
I ('gr'an) 01 mountain if・7, I"1
'f'Ill・(-23 Amend with the father of the invention. Procedure ``0 correct'' ζ (spontaneous) 1 Indication of the incident Patent application No. 180238/1982 2 Name of the invention Temperature sensing device for disaster prevention equipment 3 Mli correct Relationship with the case of a person who does
Takashi Toshi 4 Agent 5 Date of amendment order Showa year, month, day (shipped 1 item) 6 "Detailed description of the invention" column of the specification subject to the amendment, the reference numerals in Figure 3 of the drawings, and Figure 4 of the drawings 7. Content

Claims (1)

[Claims] This is a temperature sensing device that detects an abnormal temperature rise and automatically activates disaster prevention equipment. Temperature sensing device It0 for disaster prevention equipment, characterized in that the body is installed in the surface direction of a plate-like member to detect an abnormal temperature rise even at the position n of the surface area.