CN1088176C - Hot air supplying machine - Google Patents

Abstract

To simplify a structure while making it possible to obtain a clear-cut appearance of the rear of an external case and thereby to enable reduction of the number of components and the number of processes. CONSTITUTION:This heater is equipped with an external case 20 having a warm air outlet 21 in the front, an air duct 38 provided inside the external case 20, a heat exchange part 37 provided inside the air duct and a blower 54 composed of a motor 54A and a blower fan 54B and sending air toward the heat exchange part 37. A number of small holes 59 for ventilation are provided in a back plate 24 of the external case 24 so that the back plate itself is made to have a filter structure, and the motor 54A of the blower 54 is fitted to the part of this filter structure, while a bell-mouth forming body 47 having an opening 46 which the blower fan 54B of the blower 54 is made to face is provided integrally with the air duct 38.

Description

Hot air supplying machine

The present invention relates to oil blast heater, FF formula oil hot air supplying machine etc.

In the past, in such hot air supplying machine, warm braw is fixed on the backboard of external shell with the blade protector of air blast, so that cover the air suction inlet that firmly is installed on the external shell backboard from the outside.Warm braw uses the motor mounting of air blast on the inboard of the middle body of this blade protector, and the airblast blade that is installed on this electronic turning cylinder is positioned on the above-mentioned air suction inlet.In this device, owing to the blade of air blast much makes the blade protector become burden, and influence outward appearance to the behind side of external shell is outstanding.

In recent years, in order not make the blade protector become burden, employing is housed in structure in the external shell to warm braw with the flabellum of air blast and motor, and a kind of warm braw of external shell back portion neat appearance that makes is opened in the flat 4-24470 communique disclosed for for example spy with air blast.

Below in conjunction with the existing hot air supplying machine of accompanying drawing 6 these classes of explanation.Inside at the external shell 1 of hot air supplying machine is equipped with combustion barrel 2, combustion parts is facing to the burner 3 of combustion barrel 2 bottoms, accommodate the air-supply conduit 4 of combustion barrel 2 and supply with the combustor blast machine 5 of combustion airs, the warm braw air blast 6 towards combustion barrel 2 air-supplies is installed to said burner 3.This warm braw air blast 6 is by motor 7 and be installed on these motor 7 turning cylinders 8 and the airblast blade 9 that serves as screw constitutes.By making airblast blade 9 relative, and the rear portion of motor 7 is installed on the inner face of external shell 1 backboard 1A and airblast blade 9 and motor 7 received is contained in the external shell 1 with combustion barrel 2.10,10 are several air suction inlets on the backboard 1A that is arranged on above-mentioned outside housing 1 on every side that is positioned at motor 7,11 is to be configured in the backboard 1A of external shell 1 with the casing horn mouth formed body between the air-supply conduit 4, this horn mouth formed body has the opening 12 that airblast blade 9 was inserted, and formed body 11 is fixed on the inner face of backboard 1A of said external housing 1.The 13rd, to live in to state air suction inlet 10 and be installed in filter on the outside of the above-mentioned backboard 1A blade protector of holding concurrently in order to cover from the outside, on this blade protector 13, have a plurality of apertures 14,14.

In the hot air supplying machine of above-mentioned existing structure, because airblast blade 9 and motor are contained in the external shell 1, can not make blade protector 13 from the rearward outstanding a lot of advantage of the backboard 1A of external shell 1 and have, but, except air-supply conduit 4 is set, also horn mouth formed body 11 need be set in addition, and in order to guarantee safety, the filter that can cover air suction inlet from the outside blade protector 13 of holding concurrently also must be set, therefore, cause the problem that components number and assembling procedure number increase.

In view of above-mentioned actual conditions, the purpose of this invention is to provide a kind of rear side profile neat appearance that makes external shell, can make designs simplification simultaneously, reduce the hot air supplying machine of components number and assembling procedure number.

Being constructed as follows of hot air supplying machine of the present invention: there is the external shell of warm braw outlet its front, be arranged on the air-supply conduit in this external shell, be arranged on the heat exchanger assembly in this air-supply conduit, constitute by motor and wind feeding blades, air blast to aforementioned heat exchanger assembly air-supply, and the backboard of said external housing is provided with a plurality of ventilation apertures, make this backboard body form filtration device structure, with the motor mounting of above-mentioned air blast on this filtration device structure, horn mouth formed body and air-supply conduit are set to one, and this toroidal adult has the opening that adjoins mutually with blower vane.

In addition, hot air supplying machine of the present invention can also have following formation: there is the external shell of warm braw outlet the front, the air-supply conduit that is arranged in this external shell is arranged on the interior heat exchanger assembly of this air-supply conduit, that constitute by motor and wind feeding blades and to the air blast of aforementioned heat exchanger assembly air-supply, and on the backboard of said external housing, be provided with a plurality of ventilation apertures, make this backboard body form filtration device structure, the motor mounting of aforementioned air blast on the filtration device structure part, is set to one to loudspeaker formed body with the opening that adjoins mutually with blower vane and aforementioned air-supply conduit.And the gap of ventilation usefulness is set between the backboard of this horn mouth formed body and said external housing.

According to this configuration, can be externally on the backboard inner face of housing with the motor mounting of air blast, motor and wind feeding blades receipts are contained in the external shell, air blast can not given prominence to rear side significantly from the back side of external shell, so the rear side of external shell has the outward appearance of neat appearance, because the backboard body of external shell forms structure of filter, so can save the filter blade protector of holding concurrently; Again because having the wind feeding blades that makes air blast horn mouth formed body, so no longer need to prepare the horn mouth formed body that separates with the air-supply conduit facing to the air-supply conduit mouth.

In hot air supplying machine of the present invention, use the gap by between horn mouth formed body and external shell backboard, being provided with to ventilate, can make the interior air of external shell be inducted into the opening part of horn mouth formed body from this gap, and in the suction draft conduit, flow thereby air can be produced in the external shell of conduit outside of blowing, and utilize this air stream cooling to be contained in parts such as interior fuel tank of external shell and petrolift.

Fig. 1 is the flat sectional drawing of the hot air supplying machine of expression one embodiment of the invention.

Fig. 2 is the profilograph of this hot air supplying machine.

Fig. 3 be its major part amplification profile.

Fig. 4 is the decomposition diagram of the integral body of air-supply conduit.

Fig. 5 is the perspective view of a part of air-supply conduit.

Fig. 6 is the profilograph of original hot air supplying machine.

Each symbol implication in the accompanying drawing is:

20 external shells

21 warm braw outlets

24 backboards

37 combustion barrels (heat exchange section)

38 air-supply conduits

39 base wall panel

44 sidewall panelings

45 sidewall panelings

46 openings

47 horn mouth forming boards (horn mouth formed body)

48 top walls panels

54 warm braws air blast (air blast)

54A warm braw motor (motor)

45B spiral paddle (airblast blade)

59 ventilate uses aperture

A filtration device structure component part

The S gap

Below, 1 to accompanying drawing 5 explanation one embodiment of the present of invention in conjunction with the accompanying drawings.In the drawings, 20 have the external shell of warm braw exhaust outlet 21 for the front, this external shell 20 is made of base plate 22, the header board 23 that is processed with aforementioned warm braw exhaust outlet 21, backboard 24, left side plate 25,26 and top board 27, and above-mentioned backboard 24 and left side plate the 25, the 26th become a slice thin plate bending " コ " shape to form.

28 for being arranged on the motor casing of external shell 20 lower inside, and 29 for being arranged on the combustion-type air blast in this motor casing 28.This combustion-type air blast 29 is made of burner motor 30, burner fan 31 and blower-casting 32.In barrel 33 parts that form as one with aforementioned blower-casting 32, be assembled with the gasification pot 35 of burner 34 usefulness that make liquid fuel (kerosene) gasification, and combustion.

On the top of aforementioned gasification pot 35 combustion head 36 is housed, the lower inside of the combustion barrel 37 that the latter and top are open is adjacent.The bottom of this combustion barrel 37 is clamped in the base wall panel 39 that is assembled in the air-supply conduit 38 in the said external housing 20 and is assembled between the burner shell 40 on the aforementioned barrel 33, thereby makes its upright being contained in the air-supply conduit 38.41 is the auxiliary air guide ring, its peripheral part is clamped between the upper end of the bottom of combustion barrel 37 and said burner housing 40, and, as shown in Figure 3, the inner periphery of this auxiliary air guide ring 41, relative with the lower limb of otch 43 of broach shape fire ring 42 on being configured in previous combustion 36 periphery.

Aforementioned air-supply conduit 38 is by base wall panel 39, left and right sides wallboard 44,45, near the horn mouth forming board 47 at rear portion that opening 46 is arranged central authorities and top board 48 combinations and constitute, and as shown in Figure 5, aforementioned two side wall panels 44,45 and horn mouth forming board slightly are コ shape by a slice thin plate bending one-tenth and form.The base wall panel 39 of this air-supply conduit 38 can be fixedly mounted on the previous combustion device housing, can be by using screw 49,49, the back edge part 39A of base wall panel 39 and the back edge part 48A of top walls panels 48 are fixed on the backboard 24 of said external housing 20, when externally assembling in the housing 20, as shown in Figure 1 to Figure 3, between aforementioned horn mouth forming board 47 and aforementioned backboard 24, form about 30-40 mm clearance S, and make about the S of this gap and open, thereby can pass through this gap S and aforementioned opening 46, make in the air-supply conduit 38 to be in connected state with external shell 20 interior spaces.

In Fig. 1,50 for receiving the burning hopper that is contained in external shell 20 inner side lower parts, 51 is the chuck mode fuel tank to fuel tank 50 additive liq fuel (kerosene), and 52 is that 53 is the fuel tank dividing plate with the petrolift of the liquid fuel supply in the fuel tank 50 to the gasification pot 35 of burner 34.

54 is the warm braw air blast to 37 air-supplies of aforementioned combustion barrel, this warm braw with air blast 54 by warm braw with motor 54A, be contained in this warm braw and constitute with the spiral paddle 54B on the motor 54A.Above-mentioned warm braw passes through several vibration- proof materials 56,56 with the rear portion of motor 54A, is installed on the inner face that is formed on the motor mounting protuberance 57 on the above-mentioned backboard 24 by screw 58,58.Above-mentioned spiral paddle 54B adjoins mutually with the opening 46 of horn mouth forming board 47.

Appropriate position at the aforementioned backboard 24 relative with spiral paddle 54B with the opening of aforementioned horn mouth forming board 47, have the about 5 millimeters a plurality of ventilations aperture 59,59 of diameter, these a plurality of ventilations constitute the filtration fraction on backboard 24 bodies of external shell 20 with aperture 59,59, warm braw just is installed in the motor mounting at the center that is positioned at this filtration part " A " with on the protuberance with motor 54A.

60 for being assembled in the thermal insulation board of the air-supply conduit 38 that is positioned on the previous combustion tube 37, this thermal insulation board 60 is the both sides of inclined wall 61 forwardly, be formed with the stator 64,64 that has mounting jaw 62,62 and through hole 63,63 respectively, and on left and right sides downwardly depending wall 65, also be formed be separately positioned on air-supply conduit 38 two side wall panels 44,45 on the brace 67 that links to each other of installation portion 66,66.

In the above-described embodiments, when the driving warm braw rotates spiral paddle 54B with motor 54A,, will be sucked into room air in the external shell 20 by a plurality of ventilations apertures 51,51 as the filtration part A.At this moment, the ventilation aperture 59,59 that diameter is about 5 millimeters invades dust in the prevention room air or the like in the external shell 20, and makes it attached to ventilating with around the aperture 59,59.From the wind of spiral paddle 54B, will flow in the air-supply conduit 38 towards combustion barrel 37, exchange with the heat of combustion barrel 37, mix simultaneously with gas after the burning that burner 34 burnings are produced, form warm braw, be discharged to indoorly again from warm braw outlet 21, carry out the warm braw heating.

According to present embodiment, because warm braw is with screw 58 with the warm braw of air blast 54 with motor 54A, 58 are installed in the power supply motivation that is formed on external shell 20 backboards 24 installs on the inner face of protuberance 57, so, warm braw can be contained in the external shell 20 with motor 54A and spiral paddle 54B, and warm braw can be rearward not outstanding significantly by the back side of external shell 20 with air blast 54 yet, and the rear side that makes external shell 20 forms the profile of neat appearance, and backboard 24 bodies that make external shell 20 form filtration, so no longer need in the existing device the necessary filter blade protector of holding concurrently.

Because the two side wall panels 44,45 of air-supply conduit 38, with horn mouth forming board 47 a slice thin plate bending is become slightly to be " コ " shape and form one, so need except that air-supply conduit 38, not prepare the horn mouth formed body again with the opening 46 that adjoins mutually with wind feeding blades 54B.

Therefore, owing to not only do not need the filter blade protector of holding concurrently, nor need be as the horn mouth formed body of single parts, thereby structure is greatly simplified, part count reduces, and then reduce and assemble man-hour, and the effect of blade protector because the existing filter of backboard 24 main body is held concurrently, so also can guarantee its security.

Use gap S because being provided with ventilates between the backboard 24 of horn mouth forming board 47 and external shell complete 20, thus the air in the external shell 20 can be directed to the opening 46 of horn mouth forming board 47 from this gap S, and be sucked in the air-supply conduit 38.Air produces and flows in the space in the external shell 20 of air-supply conduit 38 outsides, the cooling of air stream is contained in fuel tank 50 and the petrolift 52 in external shell 20 and the lower inside space whereby, thereby, can prevent that these parts are owing to the influence of the combustion heat that is subjected to burner 24 produces high temperature.

Because aforementioned air-supply conduit 38, constitute by base wall panel 39, two side wall panels 44,45, horn mouth forming board 47 and top walls panels 48, and aforementioned two side wall panels 44,45 and horn mouth forming board 47, be to bend to slightly with a slice that to be " コ " shape integrally formed.After so employing fixedly is assemblied in base wall panel 39 on the burner shell 40, on this base wall panel 39, be assembled into the two side wall panels 44,45 and the horn mouth forming board of one again, thermal insulation board 60 is assembled on them, with top walls panels 48 assembled configuration on two side wall panels 44,45, promptly finish the assembling of air-supply conduit 38 at last, so the assembling and the field-strip of the conduit 38 of can blowing simply.And, when assembling air-supply conduit 38, if the structure as installation claw shown in the drawings and hold-down screw among the embodiment is adopted in combination, can also reduce the number of hold-down screw, and it is simple and reliable that each position component is cooperated.

The present invention is owing to have said structure, and the motor and the airblast blade of air blast can be contained in the external shell, and they can rearward not given prominence to significantly from the back side of external shell, because the rear side of external shell not only has the profile of neat appearance, and make the backboard body of external shell form structure of filter, filter the blade protector of holding concurrently so can save, and because the horn mouth forming board is made one with the air-supply conduit, so no longer need other parts as the horn mouth formed body, simplified structure reduces part count and assembling procedure greatly.

In hot air supplying machine of the present invention; use the gap owing to can utilize the ventilation that is arranged between horn mouth shaping and the external shell backboard; air in the external shell is directed to the opening part of horn mouth formed body from this gap; and in the suction draft conduit; so can produce air in the external shell of air-supply conduit outside flows; with the rising that this air flow restriction is received the dress part temperatures, make receive the dress parts simple in structure, protection is reliable.

Claims (2)

1. hot air supplying machine, have: there is the shell body of warm braw outlet its front, be arranged on the air-supply conduit in this external shell, be arranged on the heat exchanger assembly in this air-supply conduit, constitute by motor and airblast blade "; " and to the air blast of aforementioned heat exchanger assembly air-supply, and the backboard of said external housing is provided with a plurality of ventilation apertures, make this backboard body form the filter structure, it is characterized in that, the motor mounting of above-mentioned air blast on this filtration part, is arranged to one with horn mouth formed body and aforementioned air-supply conduit, and this toroidal adult has the opening that the wind feeding blades with air blast adjoins mutually.

2. hot air supplying machine as claimed in claim 1 is characterized in that, the gap of ventilation usefulness is set between the backboard of horn mouth formed body and said external housing.

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