KR101174590B1 - Warming bell fire detection motor - Google Patents

Abstract

The present invention relates to a seedling motor for a fire alarm, and more particularly, in order to shield each part of the motor mounted on the inner alarm of the fire alarm in order to block the inflow of toxic gas generated by the fire into the motor. A light alarm motor for a fire alarm that prevents corrosion of internal parts of a motor from toxic gas.
According to the present invention, the airtight is maintained in the inner space of the seedling motor by assembling hermetically sealed so that there is no inflow space in each component of the seedling motor so that no toxic gas is not introduced into the seedling motor to the inner rotor of the seedling motor. Corrosion does not occur.

Description

Breeder motor for fire alarm {WARMING BELL FIRE DETECTION MOTOR}

The present invention relates to a seedling motor for a fire alarm, and more particularly, in order to shield each part of the motor mounted on the inner alarm of the fire alarm in order to block the inflow of toxic gas generated by the fire into the motor. A light alarm motor for a fire alarm that prevents corrosion of internal parts of a motor from toxic gas.

In general, a fire alarm is legally regulated so that a fire hydrant can be installed inside a building or a fire alarm can be installed separately, and a fire alarm is generated when a fire breaks out in the building.

The fire alarm is a device for preventing fire, a fire monitor for automatically detecting the occurrence of a fire, and when a fire is found, an alarm sounds in the alarm bell as a manual operation is performed by a person. Fire alarms are mandatory in all buildings to inform people of the fire.

At this time, a fire alarm seedling for sounding the alarm when a fire occurs is provided with a seeding device that is fixed by the housing on the cone of the semi-circle hollow empty, the seeding device is coupled to the inside of the cone of the semi-circle A motor for making an alarm sound by hitting the cone of the semi-circle is coupled, a kind of hitting means such as a striking rod is coupled on the axis of rotation of the motor to strike the cone of the semicircle with the hitting means by the driving of the motor alarm sound In this case, in the case of the conventional fire alarm and the like, as described above, in order to sound another bell, the internal power means such as a motor must be provided separately.

Thus, when looking at the fire alarm seedlings mounted on the fire alarms first, as a fire alarm seedlings to notify the surroundings of the fire in the event of a fire as described above, registered as March 27, 2002 "fire alarm seedlings (registered Utility Model No. 20-0271244) ", which includes an eccentric cam which is axially coupled to an output shaft end of the motor in a fire alarm breeder in which an intermittent rod strikes a cone by oscillating motion; A rocking link, the one end of which is guided orthogonally to the motor and fixedly coupled to the striking rod positioned adjacent to the cone, and the other end of which is coupled to the housing, and which is in constant contact with the eccentric cam and oscillates from side to side; It is interposed between the inner end of the housing and the front end of the oscillating link is always configured to include an eccentric cam (spring is applied to the elastic force toward).

When the fire alarm system configured as described above is fired and any operator operates the alarm, power is applied to the motor mounted on the housing to generate a rotational output. At this time, the eccentric cam fixedly coupled to the output terminal of the motor is interlocked. At the same time, the eccentric cam oscillates from side to side by interfering with the inner surface of the operation groove of the swing link located in the orthogonal direction.

The swinging link that operates in this way interlocks a striking rod fixed to one end of the link, and is intermittently swinging by a spring that is elastically supported on the inner surface of the cone and the end surface of the housing to generate an elastic return force. To hit, and the sound of the bell sounding is made of a structure.

In the case of the conventional seedling motor (1) coupled to the fire alarm seedlings for ringing the other species as shown in Figure 1 is a DC motor widely used in everyday life as a permanent magnet 11 is inserted into the interior, after A case 10 having a cover coupling part 13 open to the side, and having a plurality of vent holes 2 penetrated therein; The drive shaft 22 is inserted into the case 10 and protrudes into the copper insertion groove 12 formed in the front center of the case 10, and the coil 21 is rotated to the center to rotate inside the case 10. Rotor 20 having; Brushes 32 which contact the commutator 23 provided at the rear of the coil 21 at the center of the rotor 20 to supply current are respectively provided therein, and the brushes 32 are inserted through one side of the electrode plate. A rear cover 30 coupled to the cover coupling portion 13 of the case 10 and coupled to each other; The drive shaft 22 of the rotor 20 is fitted into the through hole 41 penetrated to the center of the front piece of the case 10 and inserted into the center of the front surface of the case 10.

In the case of the conventional seedling motor configured as described above, when a fire occurs, a seedling motor coupled to the inner seedling of the fire alarm is operated to generate a toxic gas generated by the fire when the alarm sounds when the seedling of the fire alarm sounds. Problem that the alarm sound is interrupted during the fire due to the alarm not being operated due to the corrosion of the coil of the rotor inside the seedling motor due to flow into the ventilation hole or the coupling gap between the driving shaft and the driving shaft inserted into the front of the case. There was this.

In addition, since the seedling motor is not sealed and coupled as described above, if left for a long time, corrosion occurs in the inner rotor of the seedling motor due to moisture, or the outer surface of the light motor case also generates corrosion, thereby periodically managing the seedling motor. There was also a problem in that it takes time and management costs for management.

The present invention devised in order to solve the above problems, the powder coating on the outer surface of the seedling motor case to prevent corrosion, and assembling and shielding the sealed seed so that there is no inflow space in each part of the seedling motor It is an object of the present invention to provide a fire alarm light motor for preventing the corrosion of the internal rotor of the light alarm motor from the toxic gas is kept airtight.

In addition, a thin film is coated on the inner coil outer circumferential surface of the seedling motor to maintain the airtightness on the rotary coil can be used for a long time, there is another purpose to prevent corrosion by moisture.

The present invention to achieve this object;

In the seedling motor that rings the alarm when the fire occurs as it is installed in the alarm inside the fire alarm,

A case in which a permanent magnet, which is a stator, is inserted into the inside, and a cover coupling part is formed on the rear side, and the outer surface is powder-coated;

A rotor inserted into the case so that a driving shaft protrudes toward the front center of the case, and a coil wound around the center to rotate inside the case;

A rear cover which seals the inner space of the case as the brush which contacts one side end of the rotor and supplies a current is coupled to an inner side of the brush and is coupled to the cover coupling part of the case;

The east side is inserted into the front center of the case and the east side is fitted to the drive shaft of the rotor, and grease is injected into the east side to maintain airtightness and is fitted over the east side to shield a space into which gas is introduced into the case. Provides a warp motor for the fire alarm, characterized in that consisting of;

In addition, a thin film is coated on the outer circumferential surface of the rotor to maintain airtightness in the coil.

In addition, the rear cover is characterized in that the drive shaft to the rear side of the rotor is fitted into the fitting groove formed in the inner center of the rear cover so as not to penetrate the rear cover.

According to the present invention, the airtight is maintained in the inner space of the seedling motor by assembling hermetically sealed so that there is no inflow space in each component of the seedling motor so that no toxic gas is not introduced into the seedling motor to the inner rotor of the seedling motor. Corrosion does not occur.

In addition, a thin film is coated on the inner coil outer circumferential surface of the seedling motor to maintain the airtightness on the rotary coil can be used for a long time, there is another effect that does not cause corrosion by moisture.

1 is a view showing for explaining the structure of a conventional light alarm motor.
Figure 2 is a perspective view of a light alarm motor for fire alarm according to the present invention.
Figure 3 is an exploded perspective view of the light alarm motor for fire alarm according to the present invention.
Figure 4 is a cross-sectional view of the light alarm motor for fire alarm according to the present invention.

The alarm bell motor for the fire alarm of the present invention will be described in detail in comparison with the accompanying drawings.

First, before briefly describing the alarm alarm for the fire alarm briefly, the alarm bell (1) installed in the alarm bell inside the fire alarm ringing the alarm bell when a fire occurs, the permanent magnet 111 is inserted into the rear, the rear side A case 110 having a cover coupling part 113 and an outer surface thereof with powder coating (P); The rotor 120 is inserted into the case 110 so that the drive shaft 122 protrudes toward the front center of the case 110, and the coil 121 is wound around the center to rotate in the case 110. ; The brush 132, which is in contact with one end of the rotor 120 to supply current, is coupled to one inner side of the rotor 132, and is coupled to the cover coupling portion 113 of the case 110. A rear cover 130 for sealing the space; The east side 140 is inserted into the front center of the case 110, and the east side 140 is fitted into the drive shaft 122 of the rotor 120, and grease G is injected into the east side 140. It is composed of a closing plate 150 to maintain the airtight and to be fitted over the copper piece 140 to shield the space in which the gas flows into the case 110.

In this case, a thin film 124 is coated on the outer circumferential surface of the coil 121 of the rotor 120 to maintain airtightness in the coil 121.

Hereinafter, each component will be described in detail with reference to FIGS. 2 to 4.

First, the case 110 is to form a whole body, formed in a cylindrical shape of a metal material to form a space that can be accommodated inside, the inner circumferential surface is provided with a permanent magnet 111 is attached to the rear side, The cover engaging portion 113 is formed to be opened so that the internal parts of the seedling motor 1 can be opened, and a copper plate inserting portion 112 into which a circular copper piece 140 is inserted into the front surface is formed, and the copper plate inserting portion ( 112) The through-hole 141 is formed through the center, and the outer circumferential surface of the case 110 is coated in a powder coating (P) manner.

On the other hand, the rotor 120 is inserted and fixed to the cover coupling portion 113 of the case 110 is the same as the rotor structure of the general DC motor coil 121 is armature wound around the center of the drive shaft 122 The commutator 123 is provided with a current supplied to the rear side of the coil 121. When the rotor 120 is inserted into the case 110, the drive shaft 122 of the rotor 120 is connected to the case. 110 is protruded to the outside through the through-hole 141 formed in the center of the east side insertion portion 112 to the front.

At this time, a thin film 124 is coated on the outer circumferential surface of the coil 121 of the rotor 120 to maintain the airtight in the coil 121 to prevent corrosion due to moisture.

In addition, the rear cover 130 which seals the inner space of the case 110 is formed in the same circular shape as the case 110 as it is coupled to the cover coupling part 113 of the case 110 by an interference fit method. To be coupled to the fitting groove 133 in the center of the fitting so that the driving shaft 122 does not penetrate the rear cover 130 to the rear side of the rotor 120, and the inward commutator 123 of the rotor 120. Brushes 132 contacting each other are provided, and each of the brushes 132 is formed as an electrode of + and −, and is coupled to an electrode plate 131 provided at one side of the rear cover 130.

At this time, the permanent magnet 111 and the rotor 120 as a stator into the case 110, the current through the brush 132 coupled to the rear cover 130 in the same way as the driving principle of a general DC motor. When sent to the commutator 123 of the rotor 120, the warp motor 1 is rotated as the armature coil 121 rotates by the law of Fleming.

On the other hand, the circular copper piece 140 is inserted into the copper plate inserting portion 112 in the front center of the case 110, and the copper piece 140 is fitted to the drive shaft of the rotor 120, the copper piece 140 ) Is inserted into the copper plate inserting portion 112, so the height of the copper plate inserting portion 112 is higher than the thickness of the copper piece 140, so that a step is generated. As the grease (G) filling the step is injected onto the east piece 140 to maintain airtightness between the drive shaft 122 of the rotor 120 and the gap where the east piece 140 is fitted. As the circular finishing plate 150 is fitted onto the copper plate 140, the grease G is blocked, and at the same time, the toxic gas generated in the event of a fire is fitted between the copper plate 140 and the driving shaft 122. It prevents the flow into the gap.

In addition, the east side 140 is also inserted into the center of the rear cover 130, the east side 140 is coupled to the front of the case 110 and the east side 140 is coupled to the center of the rear cover 130 is the rotation The electron 120 is to act as a bearing to smoothly rotate.

Hereinafter, with reference to Figure 4 will be described in accordance with the above description the state of blocking the toxic gas generated when the fire alarm alarm motor for fire alarm of the present invention occurs.

First of all, the toxic gas generated by fire is different depending on the material burned, but generally carbon monoxide (CO), carbon dioxide (CO2), hydrogen cyanide (HCN), ammonia (NH 3), sulfurous acid gas (SO 2), hydrogen chloride ( Hcl) and the like, and in particular, the sulfurous acid gas, hydrogen chloride and ammonia are highly corrosive harmful gases and cause corrosion in machinery and the like.

In this case, as shown in the enlarged view of FIG. 4, the toxic gas generated when the fire occurs is mainly introduced into the vent formed in the case 110 or the vent formed in the rear cover 130 or penetrated through the center of the east side 140. Since the case flows into the gap between the ball 141 and the drive shaft 122 of the rotor 120, the case 110 is powder-coated (P) on the outer circumferential surface without an inflow hole to corrode the case 110 itself. Injecting grease (G) over the copper piece 140 and at the same time the closing plate 150 is coupled to the toxic gas of the through hole 141 and the rotor 120 of the copper piece 140 It is blocked from flowing into the gap between the drive shaft (122).

Then, the film 24 of a predetermined thickness is wrapped around the outer surface of the coil 121 of the rotor 120 coupled to the case 110 to prevent corrosion when moisture is generated inside the case 10. will be.

As explained above. While the invention has been shown in the description and drawings illustrating certain preferred embodiments, the invention belongs to the technical field to which the invention pertains without departing from the spirit and scope of the invention as indicated by the appended claims. It will be readily appreciated by one of ordinary skill in the art that various changes, modifications, and modifications may be possible.

1. Seedling motor 2. Aeration
110 Case 111 Permanent Magnet
112. Copper insertion part 113. Cover connection part
120.Rotator 121.Coil
122. Drive shaft 123. Commutator
124 Film 130 Rear Cover
131.Brush of Electrode 132.
133.Fit groove 140.East
141.Through Hole 150.Dial Board

Claims (3)

In the seedling motor (1) to ring the alarm bell when the fire occurs as installed in the alarm bell inside the fire alarm,
The case 110 is inserted into the permanent magnet 111 is inserted into the inside, the cover engaging portion 113 to the rear side and the outer surface is powder coating (P);
The rotor 120 is inserted into the case 110 so that the drive shaft 122 protrudes toward the front center of the case 110, and the coil 121 is wound around the center to rotate in the case 110. ;
The brush 132, which is in contact with one end of the rotor 120 to supply current, is coupled to one inner side of the rotor 132, and is coupled to the cover coupling portion 113 of the case 110. A rear cover 130 for sealing the space;
The east side 140 is inserted into the front center of the case 110, and the east side 140 is fitted into the drive shaft of the rotor 120. And a closing plate (150) for holding and shielding the space into which the gas flows into the case (110).
The method according to claim 1,
A thin film 124 is coated on the outer circumferential surface of the coil 121 of the rotor 120 to maintain the airtightness of the coil 121.
The method according to claim 1,
The rear cover 130 is fitted to the fitting groove 133 formed at the inner center of the rear cover 130 so that the driving shaft 122 does not penetrate the rear cover 130 toward the rear side of the rotor 120. Seedling motor for fire alarm, characterized in that.

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