JP5841910B2 - Heating system - Google Patents

Description

  The present invention relates to a heating device that warms a room with warm air heating that blows warm air and radiant heating that reflects the red heat state of a red hot cylinder.

  Conventionally, in this kind of thing, a combustion part that burns fuel, a red hot cylinder that glows red by high-temperature combustion gas heated in the combustion part, a reflector that is installed around the red hot cylinder and reflects the red hot state, There are heat exchangers in which the combustion gas that has passed through the red hot cylinder flows into a high temperature and those equipped with a convection fan on the back of the appliance body, and when heating operation is started, the air heated to a high temperature in the heat exchanger There has been a heating device that raises the temperature of the room by blowing air into the room by a convection fan to perform warm air heating, and further, by performing radiation heating by reflecting the red heat state of the red hot cylinder into the room by a reflector. (For example, Patent Document 1)

JP 2005-274030 A

  However, with this conventional one, the reflector installed near the combustion section or heat exchanger during heating operation is exposed to high temperatures and expands, and when the heating operation is finished, the temperature decreases and the reflector contracts. Therefore, there is a problem that metal sounds such as squeak noise and rubbing noise are generated at the start of heating operation or at the end of heating operation.

  In order to solve the above-mentioned problems, according to claim 1 of the present invention, an instrument main body provided with a combustion section for burning fuel, and a high-temperature combustion gas generated in the combustion section installed in the instrument main body flow in. Heat exchanger, a convection fan installed at the back of the instrument body and driven at a predetermined rotational speed, a red hot cylinder that glows red by the combustion gas generated in the combustion section, and a red hot state installed around the red hot cylinder In a heating apparatus comprising a reflecting plate that reflects and a fixing plate that is installed on the back surface of the reflecting plate and is coupled to the reflecting plate at a predetermined location, either or both of the reflecting plate and the fixing plate, A protrusion that contacts the other side is formed.

  According to a second aspect of the present invention, one surface of the substantially rectangular parallelepiped shape constituting the reflection plate is coupled to the fixing plate and a stopper at one central point, and the protrusion is formed so as to contact the four corners of the one surface. is there.

  According to a third aspect of the present invention, the protrusion is formed on the fixed plate.

  According to the first aspect of the present invention, since either one or both of the reflecting plate and the fixing plate is formed with a projection that contacts the other side, the reflecting plate expands or contracts at the start of heating operation or at the end of heating operation. However, since it is supported by the protrusions, it is not deformed, and metal sounds such as squeak noise and rubbing noise can be prevented.

  According to the second aspect of the present invention, the substantially rectangular parallelepiped-shaped one surface constituting the reflecting plate is joined at one central point via the fixing plate and the stopper, and the protrusions are formed so as to come into contact with the four corners of the one surface. Deformation can be reliably prevented, and metal sounds such as squeaks and rubbing sounds can be prevented.

  According to the third aspect, since the protrusion is formed on the fixed plate, deformation due to expansion or contraction can be prevented without increasing the cost due to the increase in the material thickness.

The perspective view of the heating apparatus which shows one Embodiment of this invention Front sectional view for explaining the internal structure of the invention Rear sectional view for explaining the internal structure of the invention Side surface sectional view explaining the heat exchanger of the invention Side sectional view for explaining the control unit of the invention Rear view for explaining the rear structure of the invention The figure explaining each button of the operation part of the same invention The figure explaining the reflecting plate and fixed plate of the same invention Partial sectional view for explaining the coupling between the reflector and the fixing plate of the invention Explanatory drawing explaining the flow of the air of the invention

Next, an embodiment of a heating device to which the present invention is applied will be described with reference to the drawings.
1 is a vertically long main body for heating by hot air and radiation, 2 is an operation unit provided with a plurality of buttons capable of setting a heating operation, a heating power in the heating operation, and the like, 3 is a set temperature during normal heating operation, A display unit for displaying the room temperature, displaying a predetermined error code when an abnormality occurs and notifying the user of the abnormality, and 4 are formed at two locations above and below the front plate 5 installed on the front surface of the instrument body 1. This is an outlet that blows wind into the room.

  Reference numeral 6 denotes a combustion section, and a vaporizing cylinder 9 for heating and vaporizing kerosene as a predetermined amount of fuel sent from the electromagnetic pump 7 by the vaporizing heater 8, and a vaporizing cylinder 9 installed at a lower portion of the vaporizing cylinder 9. A pot thermistor 10 for detecting temperature, a flame adjusting cylinder 12 that is installed above the vaporizing cylinder 9 and uniformly mixed with primary air to discharge kerosene vaporized from the flame holes of the burner head 11, and the burner head 11 A spark plug 13 that ignites the vaporized kerosene discharged from the flame hole by spark discharge, and a flame rod 14 that monitors the state of the flame mixed with the secondary air that is ignited by the spark plug 13 and blown from a wind tunnel (not shown). It is configured.

  Reference numeral 15 denotes an incandescent tube that is heated by the combustion unit 6 to glow red, 16 is a heat-resistant glass tube that covers the periphery of the red-hot tube 15, and 17 is a stainless steel reflector provided on the back side of the glass tube 16. The incandescent state of the incandescent tube 15 is reflected in the front direction of the appliance body 1 and is radiated into the room through the radiant window 18 made of a glass plate to perform radiant heating.

  The reflector 17 is formed of a plurality of surfaces that are bent so as to surround the red-hot cylinder 15, and has a substantially rectangular parallelepiped shape that includes a central screwing portion 19 that can be screwed at the center in the back direction of the red-hot cylinder 15. And a left side surface 21 and a right side surface 22 which are installed in the left and right direction in front view of the red hot cylinder 15 and screwed at both upper and lower ends at predetermined positions on the left and right sides.

  23 is a combustion fan installed in the lower left part of the instrument main body 1 when viewed from the front, and is optimal for the thermal power set by the operation unit 2 by feedback control of the rotational speed detected by a rotational speed detection device (not shown). It is driven at a rotational speed that provides an air-fuel ratio.

  24 is a heat exchanger provided above the glass cylinder 16 and provided with a plurality of pipes, and the combustion gas after passing through the red heat cylinder 15 circulates in each pipe to exchange heat with room air, Hot air is heated together with radiant heating by blowing warm air into the room from an outlet 4 formed on the front surface of the appliance body 1.

  Reference numeral 25 denotes a convection fan installed on the back surface of the instrument body 1 and covered with a fan guard 26. The convection fan 25 is driven at a predetermined rotational speed according to the heating power set by the operation unit 2 and is heated by the heat exchanger 24. The heated air is blown into the room from the outlet 4 as warm air.

  Reference numeral 27 denotes an air supply / exhaust tube provided on the back surface of the instrument body 1, and an air supply hose 28 that guides air taken from the outside to the combustion fan 23, and exhaust gas that has been heat-exchanged with room air by the heat exchanger 24. An exhaust hose 29 to be discharged is connected, and heating operation can be performed without polluting indoor air.

  30 is an overheat-preventing thermo provided on the heat exchange top plate 31 above the heat exchanger 24 to detect a predetermined high temperature, and 32 is provided on the heat exchange top plate 31 in the same manner as the overheat prevention thermo 30. This is a hot air temperature sensor that detects a predetermined low temperature lower than the prevention thermo 30, and detects the temperature in the vicinity of the heat exchanger 24 to monitor whether there is any abnormality in the heating operation.

  Reference numeral 33 denotes a power plug that is plugged into a household outlet and supplies power to the instrument body 1. Reference numeral 34 denotes an exhaust path for detecting that the connection portion between the air supply / exhaust cylinder 27 and the exhaust hose 29 has been disconnected due to disconnection of the lead wire. A disconnection detection lead wire 35 is an indoor temperature sensor for detecting the indoor temperature.

  36 is an operation button for instructing the start and stop of the heating operation, 37 is an eco button for setting an eco mode in which power consumption and fuel consumption are reduced by suppressing the maximum thermal power, and 38 is a triangular shape with the top and bottom facing up and down. Up and down buttons that can set thermal power and time with buttons, 39 is an automatic / manual button that switches between automatic operation that automatically adjusts the thermal power with respect to the set room temperature and manual operation that manually adjusts the thermal power, and 40 is the current set temperature and Regardless of the set thermal power, a small button 41 for preventing the room from being overheated by reducing it to the minimum thermal power, 41 is a timer button for starting the heating operation at a set time, and is provided in the operation unit 2 respectively.

  Reference numeral 42 denotes a front guard that surrounds the front plate 5 provided in front of the instrument body 1 and prevents burns by preventing direct contact with the air outlet 4 and the radiation window 18.

  43 is a fixed plate installed between the combustion unit 6 and the heat exchanger 24, and is between the slit 44 through which the air blown from the convection fan 25 passes and the reflector plate 17 and has a length of about 1 mm. , The central screwing portion 19 of the central surface 20 of the reflecting plate 17, and the fixed screwing portion 46 that is coupled by screwing via a screw as a stopper. The central screwing portion 19 and the fixed screwing portion 46 of the central surface 20 are coupled via a screw, and the four corners of the central surface 20 and the projections 45 are in contact with each other, whereby the front direction and the rear surface of the instrument body 1 are The reflector 17 is supported and fixed from the direction.

  47 is a control unit that is provided on the right side of the main body 1 of the instrument body 1 and that is configured by a microcomputer. The controller 47 controls the number of revolutions of the combustion fan 23 and the convection fan 25 based on instructions from the buttons of the operation unit 2 and The current room temperature and time detected by the temperature sensor 35 are displayed on the display unit 3.

Next, details of the heating operation in the heating apparatus will be described.
First, when the operation button 36 of the operation unit 2 is operated, the vaporizing heater 8 is energized to heat the inside of the vaporizing cylinder 9, and when the pot thermistor 10 detects 150 ° C. or higher, the combustion fan 23 is driven at a predetermined number of revolutions for combustion. After the air is blown and the pot thermistor 10 detects 210 ° C. or higher, the electromagnetic pump 7 is turned on to inject and vaporize a predetermined amount of kerosene into the vaporizing cylinder 9, and the spark plug 13 is energized to generate a spark current. Ignite by generating.

  After the ignition, it is determined whether the flame current value detected by the frame rod 14 is equal to or greater than a predetermined value to determine whether the ignition is successful. If the ignition is successful, the convection fan 25 is driven and the operation unit 2 is automatically operated. Check with the / manual button 39 whether automatic or manual is set.

  If automatic is set by the automatic / manual button 39, the rotation speed of the combustion fan 23 and the amount of kerosene sent from the electromagnetic pump 7 into the vaporizing cylinder 9 so that the room temperature rises to the indoor set temperature set by the up / down button 38. The amount of combustion is increased / decreased and the number of revolutions of the convection fan 25 is increased / decreased to adjust the warm air blown into the room. The room temperature detected by the room temperature sensor 35 and the set room temperature are Compared to this, heating operation is performed with the optimum thermal power.

  If manual is set by the automatic / manual button 39, the rotational speed of the combustion fan 23 and the electromagnetic pump 7 enter the vaporizing cylinder 9 according to the heating power from 1 to 6 lights set by the up / down button 38. By adjusting the amount of kerosene to be sent and adjusting the rotational speed of the convection fan 25 to change the intensity of the warm air blown into the room, the heating operation of the thermal power set by the user is performed.

Next, the fixing structure of the reflecting plate 17 will be described.
When the operation button 36 of the operation unit 2 is operated to start the heating operation, the temperature of the portion where the combustion gas flows, such as the combustion unit 6, the red hot cylinder 15, the heat exchanger 24, etc. rises, and heat conduction reflects the stainless steel reflection. The temperature of the plate 17 rises. In particular, since the central surface 20 of the reflector 17 is located in the vicinity of the red heat cylinder 15 and the heat exchanger 24 and is fixed at only one central screwing portion 19 at the center of the surface, the ambient temperature becomes high. Although it is going to deform | transform by expansion | swelling, the processus | protrusion 45 formed in the fixing plate 43 is fixing firmly by supporting the center surface 20 so that it may press on the front direction of the instrument main body 1, and the deformation | transformation of the reflecting plate 17 is carried out. It becomes possible to prevent.

  Further, when the heating operation is ended by operating the operation button 36 of the operation unit 2 during the heating operation, the temperature inside the appliance main body 1 is lowered, and the stainless steel reflector 17 tends to be deformed due to the contraction. It is firmly fixed by the connection by the screwing portion 46 and the support by the protrusion 45 formed on the fixing plate 43, and the deformation of the reflecting plate 17 can be prevented.

  Further, since the protrusions 45 are formed on the fixing plate 43 so as to come into contact with the four corners of the central surface 20 of the reflecting plate 17, the end of the central surface 20 which is easily deformed due to the temperature increase or temperature decrease is provided on the fixture body 1. Since it is supported so as to be pressed in the front direction, the central surface 20 is not deformed so as to be reversed in the back direction of the appliance main body 1, and a squeak noise, a rubbing sound, etc. from the central surface 20 at the start or end of the heating operation. It is possible to reliably prevent the generation of a metallic sound, and by forming the protrusion 45 without increasing the number of materials of the reflecting plate 17, it is possible to prevent the cost of the reflecting plate 17 from being increased.

  Also, as shown in FIG. 10, the air blown from the convection fan 25 during the heating operation passes through the slit 44 and cools the reflector 17 by passing from the back of the reflector 17 toward the front of the instrument body 1. The cooling path to be formed is formed between the reflector 17 and the fixed plate 43, and the projection 45 can prevent the deformation of the central surface 20 due to expansion and contraction, thereby preventing the cooling path from being blocked. The temperature rise of the reflecting plate 17 during the heating operation is mitigated to suppress deformation due to expansion.

  In the present embodiment, the protrusions 45 are formed on the fixed plate 43, but the protrusions 45 that contact the fixed plate 43 may be formed on the central surface 20 of the reflecting plate 17, and the fixed plates are formed at the four corners of the central surface 20. By forming the protrusion 45 having a predetermined length in contact with 43, deformation due to expansion can be prevented, and generation of metal sound can be prevented and a cooling path for the reflector 17 can be secured.

  Further, the protrusions 45 may be formed on both the central surface 20 and the fixing plate 43 of the reflecting plate 17, and the protrusions 45 that contact the four corners of the central surface 20 are formed on the fixing plate 43 and fixed from the four corners of the central surface 20. By forming the protrusions 45 that come into contact with the plate 43, the reflection plate 17 is more firmly fixed, so that it is possible to reliably prevent deformation due to expansion due to high temperature, and to prevent the generation of metallic noise and the reflection plate 17 A cooling path can be secured.

  As described above, by forming the protrusions 45 in contact with the four corners of the central surface 20 of the reflecting plate 17 on the fixed plate 43, even if the central surface 20 is deformed due to expansion or contraction during heating operation, By preventing the deformation by supporting 20 so as to be pressed in the front direction of the instrument body 1, it is possible to prevent the generation of metal sounds such as squeak noise and rubbing noise.

  Further, by preventing the projection 45 from deforming the central surface 20 of the reflecting plate 17, a cooling path for the reflecting plate 17 between the central surface 20 and the fixed plate 43 can be secured, so that the reflection during heating operation is possible. The plate 17 is reliably cooled to suppress the influence of expansion due to high temperature.

  In addition, although the said embodiment demonstrated what applied this invention to the oil stove, it is not limited to this, For example, it can apply to a gas stove etc.

DESCRIPTION OF SYMBOLS 1 Instrument main body 6 Combustion part 15 Red hot cylinder 17 Reflector plate 24 Heat exchanger 25 Convection fan 43 Fixed plate 44 Slit 45 Protrusion

Claims (3)

  An instrument main body provided with a combustion part for burning fuel, a heat exchanger installed in the instrument main body and into which high-temperature combustion gas generated in the combustion part flows, and a predetermined part installed on the back of the instrument main body A convection fan that is driven at a rotational speed; a red-hot cylinder that is red-hot by combustion gas generated in the combustion section; a reflector that is installed around the red-hot cylinder and reflects the red-hot state; A heating apparatus comprising a reflector and a fixed plate coupled at a predetermined location, wherein one or both of the reflector and the fixed plate are formed with protrusions that contact the other side. .   2. The substantially rectangular parallelepiped-shaped one surface constituting the reflecting plate is coupled to the fixing plate and a stopper at one central point, and the protrusion is formed so as to contact the four corners of the one surface. Heating system.   The heating apparatus according to claim 1, wherein the protrusion is formed on the fixed plate.

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