Abstract:
A window air conditioner with a fire alarm and smoke-exhausting device includes a body, a front room in said body, a wind-releasing gate and a smoke-exhausting gate provided at a side of the front room, an alarm in the body, a sensor positioned outside and connected to the body. The sensor senses smoke or alteration of temperature to control opening and shutting of the wind-releasing gate and the smoke-exhausting gate and turning-on-and-off of the alarm. If the sensor senses dense smoke or high temperature, a cool air exhauster sucks smoke into the front room and the smoke-exhausting gate, the heat dispersing fan and the heat disperser exhausting smoke out of a room, with the alarm sounding out warning, performing also fire preventing and smoke exhausting to enhance public security

Description:
BACKGROUND OF THE INVENTION  
         [0001]    This invention relates to a window air conditioner with a fire alarm and smoke-exhausting device, particularly to one using a common air conditioner additionally provided with a wind-releasing gate and a smoke-exhausting gate fixed at one side of a front room of a body, an alarm fixed in the body, a sensor connected with the body and located outside the body. Then the sensor may sense smoke or alteration in temperature in a room where the window air conditioner is installed to control opening and closeting of the wind-releasing gate and the smoke-exhausting gate and turning on and off of the alarm. Thus the window air conditioner performs fire preventing, smoke exhausting and air conditioning as well, enhancing public security.  
           [0002]    As commonly known, high buildings have been increasingly built year by year, and air conditioners have become absolutely necessary to be installed in a high building. And it is prescribed by the fire-preventing law that smoke-exhausting devices must be provided in high buildings. In general, the smoke-exhausting devices of a building are equipped at the same time, but function independently, not related to one another at all.  
           [0003]    Besides, a window air conditioner nowadays is only provided with a water inlet, a water outlet, an air conditioning box, a wind inlet and wind outlet, with the air conditioning box provided with a condenser, a motor and a fan. Thus, icy water gets to the condenser through the water inlet and then gets out of the water outlet, and at the same time, the fan is driven by the motor to draw in wind through the wind inlet and the wind gets out of the wind outlet through the condenser, achieving effect of air conditioning.  
           [0004]    As can be noted, the conventional way of air conditioning has no functions of smoke exhausting, so in case a fire should happen indoors, one can simply use the smoke-exhausting device alone to remove the smoke out of the room and give out alarm warning, or use a water-spraying device to put out the fire. Under such a condition, a window air conditioner, a smoke-exhausting device and a water-spraying device have to be installed independently in a room, but failing to operate synchronously with quickness in case of a fire and increasing trouble in maintenance.  
         SUMMARY OF THE INVENTION  
         [0005]    The objective of the is to offer a window air conditioner with a fire alarm and smoke-exhausting device, which has functions of fire preventing, smoke exhausting and alarm warning.  
           [0006]    One feature of the invention is a wind-releasing gate, a smoke-exhausting gate fixed at one side of a front room of a body, an alarm fixed in the body and a sensor connected to the body and located outside the body.  
           [0007]    Another feature of the invention is an electric circuit including a power terminal connected to a fuse, a reset switch connected to the fuse, the reset switch connected to a normally-closed contact, a normally-open contact, a motor compulsory switch and a transforming and rectifying circuit, the normally-closed contact connected to a power switch, the power switch connected to a temperature adjusting switch and a motor switch, the temperature switch connected to a normally-closed contact and a compressor, the compressor connected to a start condenser, the normally-open contact connected to a motor switch which may be a strong contact or a weak contact, the motor switch connected to a motor and a start condenser, the normally-closed contact connected to the wind-releasing gate and the smoke-exhausting gate, the normally-open contact and the motor compulsory switch connected to the wind-releasing gate, the smoke-exhausting gate and a first relay, another terminal of the power connected to the compressor, the start condenser, the motor, the wind-releasing gate, the smoke-exhausting gate, another relay, and another terminal of the alarm, and the above circuit connected to the transforming and rectifying circuit to form a parallel circuit. The transforming and rectifying circuit has another terminal connected to a third relay and a sensor. 
       
    
    
     BRIEF DESCRIPTION OF DRAWINGS  
       [0008]    This invention will be better understood by referring to the accompanying drawings, wherein:  
         [0009]    [0009]FIG. 1 is a side view of a sensor and an alarm arranged in the present invention;  
         [0010]    [0010]FIG. 2 is a cross-sectional view of a body with a cool air passageway in the present invention;  
         [0011]    [0011]FIG. 3 is a diagram of an electric circuit of a window air conditioner with a fire alarm and smoke-exhausting device in the present invention; and,  
         [0012]    [0012]FIG. 4 is a cross-sectional view of the body with a smoke-exhausting passageway in the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0013]    A preferred embodiment of a window air conditioner with a fire alarm and smoke-exhausting device in the present invention as shown FIGS. 1 and 2, includes a body  1 , a front room  10  in the body  1 , a cool air exhauster  11  provided at one side of the front room  10 , a wind-releasing gate  12  and a smoke-exhausting gate  12 ′ provided at another side of the front room  10 , a compressor  13  and a heat disperser  14  fixed in a rear portion of the body  1 , a motor  15  with a shaft  150  fixed in an intermediate portion of the body  1 , a first fan  151  for circulating coolant fixed in the front room  10 , a second fan  152  for dispersing heat fixed at the rear side of the body  1 , a ventilating hole  16  respectively provided in two sides of the body  1 , an alarm  17  fixed in the body  1 , and a sensor fixed outside and connected to the body  1 .  
         [0014]    Next, FIG. 3 shows an electric circuit used in the window air conditioner with a fire preventing and smoke-exhausting device. The circuit includes power terminals  2 , a fuse  20  connected to one of the power terminal  2 , a reset switch  21  connected to the fuse  20  and then connected in parallel to a normally-closed contact R 1 ′, normally-open contacts R′, R′″ and a normally-closed contact R″ of a first relay R, a normally-open contact X′ of a second relay X, a motor compulsory switch  150  and a transforming and rectifying circuit  22 . The normally-closed contact R 1 ′ is connected in series to a power switch  23 , which is then connected in parallel to a temperature adjusting switch  24  and a motor switch  154 . The temperature adjusting switch  154  is then connected in series to a normally closed contact R 1 ″ of a third relay R 1  and a compressor  13 , which is then connected to a start condenser  25 . The normally-open contact R′ of the first relay R is connected in series to the motor switch  154 , which may be a strong contact  154 ′ or a weak contact  154 ″ and connected in series to the motor  15  and a start condenser  25 ′.  
         [0015]    The normally-closed contact R″ is connected in series to the wind-releasing gate  12  and the smoke-exhausting gate  12 ′, and the normally-open contacts X′, R′″ and the motor compulsory switch  153  are connected in series to the wind-releasing gate  12 , the smoke-exhausting gate  12 ′, the first and the second relay R, R 1  and the alarm  17 . The other of the power terminals  2  is connected to the compressor  13 , the start condensers  25 ,  25 ′, the motor  15 , the wind-releasing gate  12 , the smoke-exhausting gate  12 ′, the first and the second relay R, R 1  and the other terminal of the alarm  17 . Then, the above circuit is connected to the transforming and rectifying circuit to form a parallel circuit. Further, the transforming and rectifying circuit is connected to the third relay X and the sensor  18 .  
         [0016]    In using the window air conditioner with a fire preventing and smoke-exhausting device in the invention, referring to FIGS.  1 - 4 , the sensor  18  is connected to the body  1  and positioned in a proper location in a room, and the alarm  17  is fixed in a proper location in the body  1  as shown in FIG. 1. When a fire does not happen and the body  1  operates normally, only the power switch  23  is short-circuited to become ON, letting the power terminals  2  supply current to the fuse  20 , the reset switch  21 , the normally-closed contacts R 1 ′, R″ and the transforming and rectifying circuit  22 . Then the current flowing through the normally-closed contact R 1 ′ passes through the power switch  23  to reach the temperature adjusting switch  24  and the motor switch  154 . The current flowing through the temperature adjusting switch  24  passes through the normally-closed contact R 1 ″ to reach the compressor  13  and the start condenser  25 . The current flowing through the motor switch  154  reaches the motor  15  and the start condenser  25 ′. The current flowing through the normally-closed contact R″ reaches the wind-releasing gate  12  and the smoke-exhausting gate  12 ′, and at this moment, the wind-releasing gate  12  is open and the smoke-exhausting gate is shut so that the normally-closed contacts R′, R″ may be short-circuited to become ON.  
         [0017]    Further, the current flowing through normally-open contacts R′, X′, R′″ and the motor compulsory switch  153  reaches the transforming and rectifying circuit  22 . At this moment, the normally-open contacts R′, X′ R′″ and the motor compulsory switch  153  are all cut off. The current flowing through the transforming and rectifying circuit  22  is transformed into 24V DC, which is then supplied to the third relay X, the sensor  18  and the whole circuit to maintain normal operation.  
         [0018]    In addition, the current flowing through the motor switch  154  reaches the motor  15  and the start condenser  25 ′ to let the motor  15  rotate. At the same time, the motor switch  154  may be the strong contact  154 ′, permitting the motor  15  rotate with strong speed, and if the motor switch  154  is the weak contact  154 ″, the motor may rotate with weak speed. Therefore, the shaft  150  of the motor  15  may rotate the first fan  151  and the second fan  152  to suck air in the room into the front room of the body  1 , and the first fan  151  sucks in air in the room and cooled by the coolant circulating and blows cooled air out of the wind-releasing gate  12  as shown in FIG. 2, attaining effect of sending cool air.  
         [0019]    Moreover, when the temperature in the room reaches the preset one, the temperature-adjusting switch  24  may be automatically cut off, so the compressor  13  may be stopped. But when the temperature in the room does not yet reach the preset one, the temperature-adjusting switch  24  may be automatically turned on, so the compressor  13  will begin to work. If the power switch  23  is turned off, the compressor  13  and motor  15  are all stopped. When the compressor  13  and the motor  15  are in operation or not, the sensor  18  may maintain normal operation.  
         [0020]    If a fire happens and smoke or high temperature is produced, the sensor  18  can sense the smoke or the high temperature to magnetize the third relay X and short-circuit the normally-open contact X′ to let current flow through the same contact X′ to electrify the wind-releasing gate, the smoke-exhausting gate  12 ′, the first and the second relay R and R 1  and the alarm  17 . Then the wind-releasing gate  12  is shut but the smoke-exhausting gate is open, and the current flowing through the first and the second relay R and R 1  magnetizes the same relays R, R 1  to short-circuit the normally-open contact R′ and cut off the normally-closed contact R 1 ′ so that the compressor  13  and the motor  15  may be stopped. Then the normally-closed contact R″ is cut off and the normally-open contact R′ is connected to the strong contact  154 ′ and the weak contact  154 ″ is closed to let the motor switch  154  become the strong contact  154 ′ so that the motor  15  at once begin to work, rotating with strong speed to exhaust dense smoke. At the same time the alarm sounds out warning and the first fan  151  and the second fan  152  are rotated by the shaft  150  of the motor  15 , sucking dense smoke in the front room  10  of the body  1  and then through the wind-exhausting gate  12  and blown out by the second fan  152  and the heat disperser  14 , as shown in FIG. 4.  
         [0021]    In case that a fire happens but the sensor does not work yet, the motor compulsory switch  153  can be manually pressed to become short-circuited, permitting current flow the same switch  153  and reach the wind-releasing gate  12 , the smoke-exhausting gate  12 ′, the alarm  17 , the first and the second relay R and R 1 . Then the motor rotates, the alarm  17  sounds out warning, and the first and the second relay R, R 1  are magnetized to cut off the normally-closed contacts R 1 ′, R″ and short-circuit the normally-open contact R′ so that the motor  15  may work, with the wind-releasing gate  12  shut and the smoke-exhausting gate  12 ′ open. Thus, the fire alarm and smoke device can be manually handled to perform the fire alarm and smoke-exhausting, should the sensor  18  fail to operate.  
         [0022]    The sensor  18  can maintain its operation, even if dense smoke is completely controlled and exhausted out. In case that the sensor should be damaged in a fire, the whole function of the window air conditioner may not affected, and if the reset switch  21  is pressed, the window air conditioner may recover its normal operation.  
         [0023]    The window air conditioner with a fire alarm and smoke-exhausting device in the invention has the following advantages, as can be understood from the aforesaid description.  
         [0024]    1. It can perform smoke exhausting to enhance public security.  
         [0025]    2. It can save expenditure for separately getting a window air conditioner, a fire preventing and smoke-exhausting device, and make use effectively the space of a room.  
         [0026]    3. It is easy and convenient to use, maintain and repair.  
         [0027]    4. In using it, it can exhaust dense smoke out of a room, alerting passengers-by or neighbors to notice it and report to the police so as to prevent a fire from damaging a house.  
         [0028]    While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.