KR200355561Y1 - A fire detector having a sensor guard - Google Patents

Abstract

The present invention relates to a fire detection device equipped with a reinforcement, particularly a fire detection device having a reinforcement for protecting the sensor to protect the built-in sensor for the detection of heat or smoke from external impact, and a printed circuit board (PCB) inside the detector S-shaped body for the fire detection device with the PCB protection plate to prevent the substrate from being corroded by heat or gas, and the space for containing smoke to improve the sensitivity of the smoke sensor in the smoke type fire detector It is to provide a fire detection device characterized in that it has a side.

Description

A fire detector having a sensor guard reinforcement {A fire detector having a sensor guard}

The present invention relates to a fire detection device equipped with a sensor reinforcement, in particular to protect the built-in sensor for the detection of heat or smoke from external impact, and the PCB (Printed Circuit Board) substrate inside the detector by dust, heat or gas By preventing the damage, and relates to a fire detection device that can improve the reliability by preventing the malfunction of the sensor or the PCB substrate.

In general, fire detectors are used as heat sensing type, smoke sensing type, and heat / smoke combination type. Among them, the smoke sensing type fire detector is configured to detect the fire by the smoke generated during the initial fire. It is mainly used.

Thermal fire type fire detectors are used for the diaphragm inflation due to the expansion of heat by fire when a fire occurs. The reliability of the detector is becoming important.

Nevertheless, the conventional fire detection device is made of a structure in which the cover (FIG. 1) mounted for protecting the sensor can be easily damaged by an external impact, so that there is a deficiency in protection of the fire detection sensor.

FIG. 1 illustrates an example of a conventional smoke detection type fire detector. In the conventional fire detector, as illustrated in the drawing, a smoke sensor 101 is installed in an upper space of a rear panel 109 on which a PCB board is mounted. It is composed of a mesh-shaped cylindrical body 112 and a top plate 108 and surrounded by an outer cover 102 having an opening 106 for the passage of smoke.

However, such a conventional smoke detection type fire detector has a problem that it is difficult for the internal sensor to easily detect a fire because the outside air is blocked when the cylindrical body of the mesh structure is blocked by a large amount of accumulated dust. The formed outer cover was easily crushed or damaged by external force.

In addition, the conventional smoke-sensing or heat-sensing fire detector has a structure in which the PCB substrate attached to the rear panel is directly exposed to the atmosphere, which may be corroded by various harmful gases or moisture according to external environmental conditions. In addition to shortening the life of the sensor, the original function of the sensor is degraded, and it is not able to operate normally in the event of a fire, resulting in human injury and enormous damage to property.

Therefore, the present invention is devised to improve the above problems, the first object of the present invention is to form a sensor protective cover in a structure resistant to external impact, to prolong the life of the sensor by preventing damage to the heat or smoke sensor The present invention provides a fire detection device having a reinforcing rod for protecting a sensor.

The second object of the present invention, in the fire detection device provided with the reinforcing rod for protecting the sensor, by preventing the PCB board equipped with a heat or smoke sensor is not directly exposed to heat or gas, to prevent corrosion of the PCB board wiring portion It is to provide a fire detection device having a reinforcement for protecting the sensor to reduce the malfunction.

The third object of the present invention is to provide a structure for the sensor protection reinforcement to facilitate the transfer of heat or smoke to the inside of the sensor by the fire detection having a sensor protection reinforcement that can detect the fire early by using heat or smoke In providing a device.

It is a fourth object of the present invention to provide a fire detection apparatus having a sensor protection reinforcement which can firmly support and protect a heat or smoke sensor by forming a structure in which the movement of the sensor protection reinforcement is originally blocked.

The fifth object of the present invention is to provide a fire detection device having a sensor protection reinforcement to enable the early detection of the fire by using the smoke generated in the fire by forming the sensor protective cover in a structure that is easy to accumulate and pass the smoke In providing.

1 is an exploded perspective view of a smoke detection type fire detection apparatus according to the prior art

Figure 2 is a perspective view of an embodiment of a fire detection device having a reinforcing sensor for protecting the sensor according to the present invention

3A and 3B are exploded perspective and side views of FIG. 2.

4a and 4b is another embodiment perspective view and a partially cut perspective view of a fire detection device having a reinforcement for protecting the sensor according to the present invention

<Description of the symbols for the main parts of the drawings>

1: thermal sensor 2: rear panel for wall fixing

3,14: sensor protective cover 4,13: reinforcing piece

5,12: Reinforcement 5a: Reinforcement gap

6,10: hole 7: sensor hole

8: PCB protection board 8a: Hole of PCB protection board

9: PCB board 11: smoke sensor

In order to achieve the first object, the present invention is to fix the PCB substrate equipped with a sensor for detecting heat or smoke to the rear panel for fixing the wall, and to cover the front surface with a sensor protective cover that can pass heat or smoke The fire detection device is configured to provide a fire detection device having a reinforcement for protecting the sensor, characterized in that to form a reinforcing bar to block the external shock in the sensor protective cover.

In order to achieve the second object of the present invention, the fire detection device, further comprising a PCB substrate protection plate for covering the PCB substrate in the area excluding the portion on which the sensor for detecting heat or smoke is mounted, Provided is a fire detection device having a reinforcement for protecting the sensor, characterized in that placed between the fixed rear panel and the sensor protective cover.

In order to achieve the third object, the present invention provides a plurality of holes to form a plurality of reinforcement radially from the center of the body on the side of the sensor protective cover and between each reinforcement to facilitate heat or smoke transfer into the cover. It provides a fire detection device having a reinforcement for protecting the sensor, characterized in that formed.

In order to achieve the fourth object of the present invention, the reinforcing rods formed on the sensor protective cover are respectively formed in double, and the reinforcing rods for protecting the sensor, characterized in that vertical reinforcing pieces are formed on both inner side surfaces of the respective reinforcing rods. Provide one fire detection device.

In order to achieve the fifth object, the present invention provides a space for containing a smoke sensor having a mesh structure by forming the sensor protective cover in an S shape, and forming a hole for passing a smoke at an upper end of the cover body. It is characterized by providing a fire detection device having a reinforcement for protecting the sensor.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

Hereinafter, the configuration and operation of the present invention with reference to the accompanying drawings in detail as follows.

Figure 2 is a perspective view of one embodiment of a fire detection device having a reinforcing rod for protecting the sensor according to the present invention, Figures 3a and 3b is an exploded perspective view and side view of Figure 2, illustrating a fire detection device using a thermal sensor It is.

As shown in Figure 2, the fire detection apparatus according to the present invention is fixed to the rear panel (2) for fixing the PCB substrate (9) equipped with a sensor (1) for detecting heat or smoke, the front of the It is constructed by covering with a sensor protective cover 3 through which heat or smoke can pass. And the sensor protective cover (3) to form a plurality of sensor protection reinforcing bar (5) integrally to block the external shock to achieve a first object of the present invention.

The fire detection apparatus includes a PCB board protection plate 8 having a sensor hole 8a formed to cover the front surface of the PCB board 9 in a region excluding a portion where the sensor 1 for detecting heat or smoke is mounted. It is further provided, by placing the PCB substrate protection plate 8 between the rear panel 2 and the sensor protective cover 3, which is equipped with the PCB substrate 9, and then assembled to achieve the second object of the present invention. Configure.

In the fire detection device, a plurality of holes 6 are formed on the side of the sensor protective cover 3 to facilitate heat or smoke transfer into the cover, and the heat sensor 1 on the upper center of the cover body. By forming a sensor hole 7 for the external protrusion of the configuration to achieve the third purpose of the present invention. Here, the sensor hole 7 in the upper part of the body of the cover 3 is protruded to the outside so that the heat sensor can detect the heat well in the event of a fire serves to detect the fire early, radially from the center of the body A plurality of holes 6 of the formed side also serves to smooth the operation of the detector by freeing the inflow of outside air. In particular, the height of the sensor protective cover 3 is preferably such that the sensor is on the same line as or below the central hole 7.

In addition, in the fire detection device, the side of the sensor protective cover (3) forms a plurality of reinforcement (5) radially from the center of the body, the plurality of reinforcement (5) with a gap (5a) of the reinforcement table between. Two reinforcing bars are formed in double to form a pair, respectively, and on both sides of each of the double reinforcing bars to form a reinforcing piece 4 perpendicular to the reinforcing bar as shown in the enlarged detail of FIG. We assume structure to be able to achieve the fourth purpose of design. Here, the double reinforcement bar 5 provided in the sensor protective cover 3 may serve to block the sensor protection cover 3 when it is externally impacted, and the number of each reinforcement band may be a plurality of pairs. It is preferable to be configured as, in the present invention in order to faithfully perform the protective role of the heat or smoke sensor (1) will be described by illustrating a case consisting of six pairs. And by forming the reinforcing piece (4), each one on the opposite side of the two reinforcing bar paired in each of the reinforcing bar (5), as compared to the general reinforcing bar without the reinforcing bar has a much more robust structure, so the cover for protecting the sensor by external force (3) The fine movement to the top, bottom, left and right generated in the upper part is reduced, thereby acting to protect the heat or smoke sensor with certainty.

4a and 4b is a perspective view and a partially cut perspective view of another embodiment of a fire detection device having a reinforcement for protecting the sensor according to the present invention, illustrating a fire detection device using a smoke sensor.

As shown in Figures 4a and 4b, the sensor protective cover 14 applied to another embodiment of the present invention can secure a space for containing smoke to improve the sensitivity of the smoke sensor 11 mounted inside the body. It has an S-shaped body so as to form a plurality of double reinforcing rods 12 and reinforcing pieces 13 in the sensor protective cover 14, a plurality of holes 10 between each of the double reinforcing rods 12 It is configured to achieve the fifth object of the present invention. In this case, the S-shaped body may perform a function of securing a space for the accumulation of smoke, and a plurality of holes 10 formed between the respective reinforcing rods may be circumferentially formed on the upper portion of the side of the body of the sensor protective cover 14. By forming along this, the inflow of the smoke is easy but the outflow is suppressed to facilitate the accumulation of the smoke.

Referring to the assembly process of the fire detection device having a reinforcing sensor protection according to the present invention is configured as described above and the resulting effects.

First, the sensor protective cover 3, which is assembled to the heat sensing type fire detection apparatus of the present invention, forms a hole 6 between the sensor protective reinforcing bar 5 and each reinforcing bar, and in the central part of the cover, A hole 7 for exposure is formed.

In addition, the sensor hole 8a is formed in the center portion of the PCB protection plate 8 so as to correspond to the portion where the thermal sensor 1 is mounted.

Next, the PCB board 9 on which the thermal sensor 1 is mounted is fixed to the rear panel 2 for fixing the wall, and the sensor hole 8a of the PCB protection plate 8 is matched with the sensor 1 to the above. Assembling the PCB board protection plate (8) on the PCB board (9), and then cover it with a sensor protective cover (3) to assemble a fire detection device that can pass heat or smoke freely on the front.

The assembled fire detection device has a sensor protective cover (3) integrally formed with a plurality of sensor protection reinforcement (5) and the plurality of reinforcement (5) is formed in two pairs of two reinforcement in a pair External shocks are not transmitted to the sensor. In addition, the vertical reinforcing piece (4) is formed on both sides of each of the double reinforcing bar, as compared with the general reinforcing bar without the reinforcing bar, the reinforcing bar according to the present invention has a much more robust structure for protecting the sensor by external force It is possible to reduce the fine movement to the top, bottom, left and right generated on the cover 3 to protect the sensor reliably, thereby preventing the damage and breakage of the sensor to extend the life of the fire detection device.

In addition, the side of the sensor protective cover 3 is formed with a plurality of holes (6) radially from the center of the body to facilitate the operation of the detector to free the outside air inflow, and in the upper center of the cover body a thermal sensor ( Since the sensor hole 7 for the external protrusion of 1) is formed, the sensor is exposed to the outside to enable early detection by heat.

In addition, since the fire detection device of the present invention is covered by the PCB protection plate 8, except that the sensor 1 is mounted on the front surface of the PCB, the PCB 9 is not exposed to heat or gas. By preventing corrosion of the substrate 9, it is possible to reduce the malfunction of the sensing circuit and thus improve the reliability of the fire detection apparatus.

On the other hand, the sensor protective cover 14 applied to the smoke-sensing fire detection device is formed of a plurality of double reinforcement 12 and the reinforcing piece 13 to perform the sensor protection possible as the heat-sensitive fire detection device In addition, it is made of S-shaped body to secure a space for containing the smoke inside the body and between each of the double reinforcing rods 12 formed a plurality of holes 10 in the circumferential direction is easy to inflow of smoke, Since the leakage is suppressed to facilitate the accumulation of smoke, the sensitivity of the smoke sensor 11 mounted inside the cover can be improved.

According to the present invention, a fire detector configured by fixing a PCB board equipped with a sensor for detecting heat or smoke to a rear panel for fixing a wall, and covering the front surface with a sensor protective cover through which heat or smoke can pass. In the sensor protection cover, a double sensor protection reinforcement is provided to protect the heat or smoke sensor by blocking the sensor protection cover from an external impact in the heat or smoke fire detection device.

In addition, in the sensor protection cover equipped with the reinforcing rod, each reinforcing rod is configured in double, and a reinforcing piece is formed on one side of each reinforcing rod to prevent the sensor protective cover from moving up, down, left, and right, and thus to heat or smoke sensors. More effective protection.

The plurality of holes between the reinforcing rods and the sensor protruding hole in the center of the radially based on the center of the body facilitates the entry of heat or smoke in the event of a fire has the effect of detecting the fire early.

In addition, the PCB protection plate is placed between the rear panel where the PCB is fixed to cover the front surface of the PCB and the cover for the sensor, thereby protecting the PCB from dust or corrosive gas, thereby preventing malfunction or corrosion of the sensor.

In addition, in the case of a smoke detector, the S-shaped body is provided on the entire side to secure a space capable of containing smoke, thereby improving the sensitivity of the smoke sensor, and a plurality of holes are formed in the upper part of the body side between the reinforcing rods. By accumulating smoke, the effect of improving the sensitivity of the smoke sensor is obtained.

Claims (6)

In a fire detection device comprising a PCB substrate equipped with a sensor for detecting heat or smoke is fixed to the rear panel for fixing the wall, and the front surface is covered with a sensor protective cover through which heat or smoke can pass, And a reinforcing bar for blocking an external impact on the sensor protecting cover, wherein the fire detecting device is provided with a reinforcing bar for sensor protection. The method of claim 1, Further comprising a PCB substrate protection cover for covering the front surface of the PCB substrate in the region excluding the portion in which the sensor for heat or smoke detection is mounted, it is placed between the rear panel and the sensor cover for fixing the PCB substrate , Fire detection device with sensor protection reinforcement. The method of claim 1 or 2, wherein the sensor cover, A plurality of reinforcing rods are formed on the side surface radially from the center of the body, and between each of the reinforcing rods, a plurality of holes for heat or smoke transfer to the inside of the cover, characterized in that the fire detection device having a reinforcement for protecting the sensor . The method of claim 3, The plurality of reinforcing rods are each formed of a double reinforcing rod, each side of each of the double reinforcing rods, characterized in that the reinforcing piece is formed on one side of each of the vertical perpendicular to the reinforcing rod, the fire detection device with a sensor protection reinforcement. The method of claim 3, wherein the sensor cover, Forming a sensor hole for the external protrusion of the thermal sensor in the upper center of the body, characterized in that a plurality of holes formed between each reinforcing bar is formed on the entire side of the area excluding the reinforcing bar, sensor protection reinforcement One fire detector. The method of claim 3, wherein the sensor protective cover, Inside the body has an S-shaped body on the side for a space that can contain smoke to improve the sensitivity of the smoke sensor, a plurality of holes formed between each of the reinforcement in the upper portion of the side of the body between each of the reinforcement Fire detection device having a reinforcement for protecting the sensor, characterized in that formed.