CN102713477A - Refrigeration storage unit - Google Patents

Refrigeration storage unit Download PDF

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Publication number
CN102713477A
CN102713477A CN2011800055916A CN201180005591A CN102713477A CN 102713477 A CN102713477 A CN 102713477A CN 2011800055916 A CN2011800055916 A CN 2011800055916A CN 201180005591 A CN201180005591 A CN 201180005591A CN 102713477 A CN102713477 A CN 102713477A
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CN
China
Prior art keywords
wall portion
cooler
fan
partition wall
side wall
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Granted
Application number
CN2011800055916A
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Chinese (zh)
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CN102713477B (en
Inventor
阿部慎一
川浪徹
新木丰
田村刚
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Sharp Corp
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Sharp Corp
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Publication of CN102713477B publication Critical patent/CN102713477B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A refrigeration storage unit (1) is provided with: a cold storage compartment (6) for cooling an object to be cooled; a cooler (18) for generating cold air supplied to the cold storage compartment (6); a housing for containing the cooler (18) and forming a containing compartment (24) extending upward from the cooler (18); an opening (31) formed in a side surface of the containing compartment (24) at a position above the cooler (18); a fan (32) provided at the opening (31); a guide wall section for guiding the cold air from the cooler (18) toward the fan (32); and an equipment containing compartment formed between the housing and the guide wall section.

Description

Cold room
Technical field
The present invention relates to cold rooms such as refrigerator.
Background technology
For example the open communique spy of Japan Patent opens shown in 2007-71484 number (patent documentation 1) etc., and cold rooms such as refrigerator generally include: cooling chambers such as refrigerating chamber and refrigerating chamber; Cooler generates the cold air of supplying with to said cooling chamber; And pressure fan, the cold air that cooler is generated is sent to cooling chamber.Cooler and pressure fan are housed in the cooler chamber.
The open communique spy of Japan Patent opens 2009-63221 number (patent documentation 2) described refrigerator and comprises: cooling chamber, cooling preservation reserve; Cooler generates the cold air that flows into cooling chamber; And pressure fan, the cold air circulation that cooler is generated.
Be provided with the cold air path of separating with backplate in the behind of cooling chamber, cold air path is divided into front and rear by dividing plate.Cooler and pressure fan are configured in the rear portion.
The outer frame of pressure fan is square, and the side of the frame portion of pressure fan is near the inner peripheral surface of cold air path.
The open communique spy of Japan Patent drives 2002-31465 number (patent documentation 3) described refrigerator and comprises: a plurality of refrigerating chambers; Evaporimeter; Fan is seen the cold air that evaporimeter generates off; And the cold air distribution duct, will distribute to each refrigerating chamber from the cold air that fan is seen off.And, on the side wall portion of the left and right sides of cold air distribution duct, be formed with the protuberance of outstanding to the inside chevron.
The open communique spy of Japan Patent drives 2002-228328 number (patent documentation 4) described refrigerator and comprises: refrigerating chamber, vegetable compartment and refrigerating chamber; Evaporator room is arranged on the rear of vegetable compartment; Evaporimeter is arranged in the evaporator room; And fan, be arranged on the top of evaporimeter.
The open communique spy of Japan Patent opens 2003-114084 number (patent documentation 5) and the open communique spy of Japan Patent and opens and put down 10-2653 number (patent documentation 6) described refrigerator and comprise: evaporimeter; The cold air path of set inside evaporimeter; Be configured in the fan of evaporimeter top; And will pass through the spigot surface of the cold air of evaporimeter to the fan guiding.
Patent documentation 1: Japan Patent open communique spy open 2007-71484 number
Patent documentation 2: Japan Patent open communique spy open 2009-63221 number
Patent documentation 3: Japan Patent open communique spy open 2002-31465 number
Patent documentation 4: Japan Patent open communique spy open 2002-228328 number
Patent documentation 5: Japan Patent open communique spy open 2003-114084 number
Patent documentation 6: Japan Patent open communique spy open flat 10-2653 number
Usually, the cold-producing medium in the cooler is through behind the gas-liquid separator, and gasiform cold-producing medium returns compressor.By control part drive controlling compressor and cooler.
In the open communique spy of Japan Patent opened 2007-71484 number described refrigerator, if gas-liquid separator and control part are configured in the outside of cold air path and cooler chamber, then refrigerant pipe unrolled and the complicacy that becomes such as unroll of distribution.And if merely gas-liquid separator and control part etc. is configured in the cold air path with cooler when indoor, then the volume of cooling duct and cooler chamber becomes greatly, thereby the volume of refrigerating chamber and refrigerating chamber is diminished.
And merely when cold air path and indoor configuration gas-liquid separator of cooler and control part, the wind pushing performance of pressure fan can significantly reduce.
In addition,, can consider to be provided with guiding wall portion, but during by guiding wall portion guiding cold air, the temperature of cold air might rise in order to improve the air-supply efficient of pressure fan.
In the open communique spy of Japan Patent opened 2009-63221 number described refrigerator, the distance between the outer frame of pressure fan and the inner peripheral surface of cold air path was narrow, and the cold air in the cold air path is difficult to deliver to the front portion by pressure fan.
Therefore, in the open communique spy of Japan Patent opens 2009-63221 number described refrigerator, if in cold air path configuration gas-liquid separator and control part, then the volume of cold air path becomes big, the air-supply efficient of pressure fan can significantly reduce.
In the open communique spy of Japan Patent drives 2002-31465 number described refrigerator, also merely configuration gas-liquid separator and control part in being provided with the space of evaporimeter, thus make the space that is provided with evaporimeter become big, and the draft capacity of fan reduces.In the open communique spy of Japan Patent drove 2002-228328 number described refrigerator, merely configuration gas-liquid separator and control part in evaporator room too existed evaporator room to become the problem of the draft capacity reduction of big and fan.
Opening 2003-114084 number the open communique spy of Japan Patent opens in the flat 10-2653 number described refrigerator with the open communique spy of Japan Patent; If merely be configured in gas-liquid separator and control part etc. in the cold air path; Then not only cold air path becomes big, and the air-supply efficient of fan also significantly reduces.Possibly be heated when in addition, the Quilt with air conditioning spigot surface guides.
Summary of the invention
In view of the above problems, first purpose of the present invention provides a kind of cold room, even equipment such as gas-liquid separator and control part are configured in the cold air path, also can suppress the volume increase of cold air path and the draft capacity of fan and reduce.Second purpose of the present invention provides a kind of cold room, when the cold air that generates cooler when fan guides, the temperature that can suppress cold air rises.
Cold room of the present invention comprises: cooling chamber, cool off the cooling object; Cooler generates the cold air of supplying with to cooling chamber; Casing is formed with reception room, and said reception room is accommodated cooler, and extends to the top from cooler; Peristome is formed in the medial surface of reception room, is positioned on the part of cooler top; Fan is arranged at peristome, from peristome to the cooling chamber cool-air feed; Guiding wall portion is arranged in the reception room, and extends towards the upper end side of fan from the side of fan, will guide to fan from the cold air of cooler; And reception room, can accommodate equipment, be positioned at and the fan opposition side with respect to guiding wall portion, and be formed between guiding wall portion and the preceding casing.
Preferably, said reception room comprises: suction inlet sucks the cold air from cooler; And exhaust outlet, the air in the reception room is discharged to fan.Preferably, said guiding wall portion is formed by heat-barrier material.
Preferably, said casing comprises: partition wall portion is positioned at the cooling chamber side; The first side wall portion is arranged on the side of partition wall portion; Second side wall portion, portion is relative with the first side wall; Back face wall portion, relative with partition wall portion; And upper wall portions, be arranged on the upper end of partition wall portion.Form first bight by said partition wall portion and the first side wall portion, and form second bight by the partition wall portion and second side wall portion.Said guiding wall portion comprises: the first guiding side wall portion is adjacent with fan; And the second guiding side wall portion, be positioned at and the first guiding side wall portion opposition side with respect to fan.Said reception room comprises: first cuts apart reception room, is formed by first bight and the first guiding side wall portion; And second cut apart reception room, formed by second bight and the second guiding side wall portion.
Preferably, also comprise the gas-liquid separator that is connected in said cooler, and gas-liquid separator is housed in the reception room.
Preferably, also comprise the control part of the said cooler of drive controlling, and control part is housed in the reception room.
The cold room of another aspect of the present invention comprises: cooling chamber, cool off the cooling object; Cooler generates the cold air of supplying with to cooling chamber; Casing is formed with reception room, and said reception room is accommodated cooler, and extends to the top from cooler; Peristome is formed in the medial surface of reception room, is positioned on the part of cooler top; Fan is arranged at peristome, from peristome to the cooling chamber cool-air feed; And guiding wall portion, be arranged in the reception room, and extend towards the upper end side of fan from the side of fan, will guide to fan from the cold air of cooler.Said guiding wall portion is formed by heat-barrier material.
Preferably, said casing comprises: partition wall portion is positioned at the cooling chamber side; The first side wall portion is arranged on the side of partition wall portion; Second side wall portion, portion is relative with the first side wall; Back face wall portion, relative with partition wall portion; And upper wall portions, be arranged on the upper end of partition wall portion.Said peristome is formed on the partition wall portion, and along with towards the top, fan tilts to back face wall portion from partition wall portion.
Preferably, cold room also comprises: first shutter board is arranged in the said partition wall portion, on the part between guiding wall portion and the first side wall portion; And second shutter board, be arranged in the partition wall portion, on the part between the guiding wall portion and second side wall portion.And along with towards the top, said first shutter board and second shutter board tilt to back face wall portion from partition wall portion.
Preferably, said casing comprises: partition wall portion is positioned at the cooling chamber side; The first side wall portion is arranged on the side of partition wall portion; Second side wall portion, portion is relative with the first side wall; Back face wall portion, relative with partition wall portion; And upper wall portions, be arranged on the upper end of partition wall portion.Said peristome is formed on the partition wall portion, and fan is according to rotating through the mode of the first side wall portion side, upper wall portions side and the second side wall portion side successively.In said reception room, volume cooler top, between fan and the first side wall portion is greater than volume above the cooler, between fan and second side wall portion.
According to cold room of the present invention, even equipment such as gas-liquid separator and control part are configured in the cold air path that contains cooler, the volume that also can suppress cold air path increases, and suppresses the air-supply efficient reduction of fan.
Description of drawings
Fig. 1 is the cross-sectional side view that schematically shows the cold room 1 of this embodiment 1.
Fig. 2 is the rearview of expression cooler 18 and reservoir 19, is the rearview of observing from the rear side of cold room 1.
Fig. 3 is the exploded perspective view of expression reception room 24, cooler 18 and fan 32 etc.
Fig. 4 is the stereogram of expression reception room 24, cooler 18 and fan 32 etc.
Fig. 5 is the cross-sectional side view of the configuration status of expression fan 32 and cooler 18 grades.
The analog result of the air stream when Fig. 6 is expression like said Fig. 3 and both sides configuration guiding wall portion 50 at fan 32 shown in Figure 4 with guiding wall portion 51.
Fig. 7 is the analog result of the air stream when representing not dispose guiding wall portion 50 with guiding wall portion 51.
Fig. 8 is the stereogram of the variation of expression guiding wall portion 50 and guiding wall portion 51.
Air flow field simulation result's when Fig. 9 is expression employing guiding wall portion 50 shown in Figure 8 and guiding wall portion 51 figure.
Figure 10 is the reception room 24 that is provided with of the cold room 1 of expression this embodiment 2 and the stereogram of fan 32 grades.
Figure 11 is the front view of reception room 24 grades shown in Figure 10.
Figure 12 is the stereogram of the cold room of expression this embodiment 3 reception room 24, fan 32 and the cooler 18 etc. that are provided with.
Figure 13 is the stereogram of expression reception room 24 and cooler 18 grades.
Figure 14 is the reception room 24 shown in Figure 13 and the front view of cooler 18 grades.
Figure 15 is the stereogram that waits in the expression reception room 24.
Figure 16 is the stereogram of first variation of expression Figure 12 example.
Figure 17 is the stereogram of second variation of expression Figure 12 example.
Figure 18 is the stereogram of the variation of expression Figure 16 example.
Figure 19 is the variation of Figure 17 example.
Figure 20 is the figure of the fan 32, guiding elements 65,66 and the cooler 18 that schematically show cold room of the present invention.
Figure 21 is the figure that schematically shows ear 90,91, fan 32 and cooler 18.
Description of reference numerals
2 casings
3 outer containers
Case in 4
5 heat-barrier materials
6 refrigerating chambers
7 ice-making compartments
8 refrigerating chambers
9 vegetable compartment
10,11,12,13
14,15 thermal wall
16 canyons
17 compressors
18 coolers
19 reservoirs
20 top board walls
21 back face wall
22 cold air paths
23,25,26 partition wall portion
24,54,55 reception rooms
27,80,81 cooling ducts
28,32 fans
29 baffle plates
30 control parts
31 peristomes
33 heaters
34 heater housings
35,36 backward channels
37 refrigerant pipes
38 cooling fins
39 initial ends
40 final ends
41,42 side wall portions
43 upper wall portions
44 main wall portions
45 pars
46 rakes
50,51 guiding wall portions
52,53 shutter boards
56,57 supporting members
60,61,62,63 gaps
65,66,70,71 guiding elements
67,68,72,73 guide surfaces
74 abutments
75,76 bottoms
90,91 ears
A, B, C, D distance
The R rotation direction
The specific embodiment
Below use Fig. 1 to Figure 21 that cold room 1 of the present invention is described.In addition, in the embodiment of following explanation, relate under the situation of number, quantity etc., if not special record, scope then of the present invention is not limited to said number, quantity etc.In addition, in following embodiment, each inscape might not be the necessary inscape of the present invention except that special record, and the position relation of each inscape is except that special record, and the present invention also is not limited to said position relation.In addition, below exist under the situation of a plurality of embodiments, except that special record, the characteristic of self-evident each embodiment can appropriate combination.
(embodiment 1)
Fig. 1 is the cross-sectional side view that schematically shows the cold room 1 of this embodiment 1.As said shown in Figure 1, cold room 1 comprises: casing 2, and inside is formed with refrigerating chamber etc.; Cooling device generates the cold air to supplies such as refrigerating chambers; And control part 30, the said cooling device of drive controlling etc.
Casing 2 comprise outer container 3, interior case 4 and be filled in outer container 3 and interior case 4 between heat-barrier material 5.Cold room 1 comprises: refrigerating chamber 6 is formed on the inner top of casing 2; Ice-making compartment 7 is formed on the below of refrigerating chamber 6; Refrigerating chamber 8 is formed on the below of ice-making compartment 7; And vegetable compartment 9, be formed on the below of refrigerating chamber 8.
Casing 2 comprises: the door 10 of switch refrigerating chamber 6; The door 11 of switch ice-making compartment 7; The door 12 of switch refrigerating chamber 8 and the door 13 of switch vegetable compartment 9.
Casing 2 comprises: top board wall 20; The back face wall 21 that hangs down from the peripheral edge portion of top board wall 20; And not shown two side portion.Casing 2 comprises: thermal wall 14 is arranged between refrigerating chamber 6 and the ice-making compartment 7; And thermal wall 15, be arranged between refrigerating chamber 8 and the vegetable compartment 9.
Rear side at refrigerating chamber 8 is provided with cold air path 22, and between refrigerating chamber 8 and cold air path 22, is provided with partition wall portion 23.Rear side at cold air path 22 is provided with reception room 24, the cooler of stating after said reception room 24 contains 18 etc.Between reception room 24 and cold air path 22, be provided with partition wall portion 25.Reception room 24 is formed by the casing that comprises partition wall portion 25 and back face wall 21, and reception room 24 extends on short transverse.
Rear side at refrigerating chamber 6 is provided with cooling duct 27, between cooling duct 27 and refrigerating chamber 6, is provided with partition wall portion 26.
Cooling duct 27 is connected with cold air path 22, and between cooling duct 27 and cold air path 22, is provided with baffle plate 29 and fan 28.
Cooling device generates the cold air of supplying with to refrigerating chamber 6, ice-making compartment 7, refrigerating chamber 8 and vegetable compartment 9.Cooling device comprises: compressor 17, compression refrigerant gas; Condenser (not shown) makes the refrigerant gas condensation of the HTHP of compressor 17 compressions; Expander (not shown), cooling condenser condensed refrigerant liquid passes through; Cooler (evaporimeter) 18 makes the refrigerant liquid evacuator body that pressure descends in expander; And reservoir 19, be connected in cooler 18 and compressor 17.
Compressor 17 is housed in the formed canyon 16 of rear side of vegetable compartment 9.Cooler 18 is housed in the reception room 24, and is positioned at the top of canyon 16.Reservoir 19 also is housed in the reception room 24, and is located at the top of cooler 18.Also contain control part 30 in the reception room 24.
In the medial surface of reception room 24, be positioned on the part above the cooler 18 and be formed with peristome 31, fan 32 is arranged on the said peristome 31.The below of cooler 18 is provided with heater 33, disposes heater housing 34 between heater 33 and the cooler 18.
When driven cooling devices, in reception room 24, be positioned at cooler 18 ambient airs and be cooled.Fan 32 makes the air in the reception room 24 that is cooled flow into cold air path 22.On cold air path 22, be formed with cold air mouth etc., so that cold air gets in ice-making compartment 7 and the refrigerating chamber 8.
Fan 28 makes the cold air that supplies to cold air path 22 flow into cooling duct 27.On partition wall portion 26, be formed with the cold air mouth that leads to refrigerating chamber 6, cold air gets in the refrigerating chamber 6 from said cold air mouth.On the bottom surface side of refrigerating chamber 8, be provided with the backward channel 35 that is communicated with reception room 24, vegetable compartment 9 also is provided with the backward channel 36 that is communicated with reception room 24.
Carry out cooled air through refrigerating chamber 6, ice-making compartment 7, refrigerating chamber 8 and vegetable compartment 9 etc. and to the cooling object, get in the reception room 24 from backward channel 35,36, device 18 coolings once more are cooled.
Sometimes contain large quantity of moisture from backward channel 35 and the air that backward channel 36 gets in the reception room 24.If utilize 18 pairs of this air of cooler to cool off, then can adhere to frost on the cooler 18.
In order to remove the frost that adheres on cooler 18 grades, control part 30 makes the running that defrosts of cooling device and heater 33 on the opportunity of regulation.In the defrosting running, stop driven cooling devices, and drive heater 33.Through driving heater 33, the frost that adheres on the surface of cooler 18 grades is removed.
Fig. 2 is the rearview of expression cooler 18 and reservoir 19, is the rearview of observing from the rear side of cold room 1.As said shown in Figure 2, cooler 18 comprises the refrigerant pipe 37 of the cold-producing medium that circulates, and is arranged on a plurality of cooling fins 38 on the refrigerant pipe.
Refrigerant pipe 37 extends downwards from serpentine bend limit, 39 limit, initial end, and extends from serpentine bend limit, limit, lower direction top.The initial end 39 of refrigerant pipe 37 is connected with the capillary as expander performance function, and from capillary to refrigerant pipe 37 the supply system cryogens.If cold-producing medium gets in the refrigerant pipe 37, then cold-producing medium is vaporized, and is positioned at cooler 18 ambient airs and is cooled by cooling fin 38 grades.Final end 40 is connected with as the reservoir of gas-liquid separator performance function (gas-liquid separator) 19, and liquid cold-producing medium storage is stayed in the reservoir 19, and gasiform cold-producing medium is sent to compressor 17.
Fig. 3 is the exploded perspective view of expression reception room 24, cooler 18 and fan 32 etc., and Fig. 4 is the stereogram of expression reception room 24, cooler 18 and fan 32 etc.In addition, Fig. 3 is the stereogram of observing from the face side of cold room 1, and Fig. 4 is the stereogram of observing from the rear side of cold room 1.
Like Fig. 3 and shown in Figure 4, back face wall 21 comprises: main wall portion 44 forms tabular; Side wall portion 41 is formed on the first type surface of main wall portion 44, and on short transverse, extends; Side wall portion 42 forms with side wall portion 41 devices spaced apart; And upper wall portions 43, be arranged to connect the top portion of side wall portion 41 and side wall portion 42.
Partition wall portion 25 is configured to cover side wall portion 41, side wall portion 42 and upper wall portions 43.In other words, the casing of formation reception room 24 comprises side wall portion 41, side wall portion 42, upper wall portions 43 and partition wall portion 25.Partition wall portion 25 has par 45, and is connected the rake 46 that is provided with par 45.Along with from the below towards the top, rake 46 tilts with the mode of swinging to main wall portion 44 sides.
On rake 46, be formed with peristome 31, in peristome 31, dispose fan 32.Fig. 5 is the cross-sectional side view of the configuration status of expression fan 32 and cooler 18 grades.As said shown in Figure 5, along with towards the top, fan 32 is with the mode tilted configuration near main wall portion 44.
If the distance between fan 32 and the partition wall portion 23 is a distance L 1, the distance between partition wall portion 25 and the partition wall portion 23 is a distance L 2.And the distance between fan 32 and the main wall portion 44 is a distance L 3.Particularly, distance L 1 is that the intersection point of virtual axis O1 and partition wall portion 23 of the rotary centerline through fan 32 is to the distance between the fan 32.Distance L 3 is that intersection point through the virtual axis O1 of the center of rotation axis of fan 32 and main wall portion 44 is to the distance between the fan 32.Usually, if fan during near the nearby wall that is positioned at around the fan, the draft capacity of fan significantly reduces.Therefore, for rotary centerline towards horizontal direction, fan 32A when promptly erecting fan 32, and fan 32 is studied.If the distance between fan 32A and the main wall portion 44 is a distance L 6.At this moment, fan 32A is set on distance L 6 and the position that said distance L 3 equates.
Partition wall portion 23 when the partition wall portion 23A shown in the dotted line representes to make partition wall portion 23 away from fan 32A, and make the distance L 4 of partition wall portion 23A and fan 32A equal said distance L 1.Like this, because distance L 1 is consistent with distance L 4, and distance L 3 is consistent with distance L 6, so the draft capacity of the draft capacity of fan 32 and fan 32A is unanimous on the whole.On the other hand, partition wall portion 23A than partition wall portion 23 to refrigerating chamber shown in Figure 18 one side shiftings the part of distance L 5.Hence one can see that, tilts through making fan 32, under the situation of the draft capacity of keeping fan 32, can strengthen the volume of refrigerating chamber shown in Figure 18 cooling chambers such as grade.
Among Fig. 4 and Fig. 5, in the surface of partition wall portion 25, be positioned on the first type surface of back face wall 21 sides, be provided with shutter board 52 and shutter board 53.
Shutter board 52 and shutter board 53 are configured in the both sides of fan 32.The guide surface of shutter board 52 and shutter board 53 is also identical with rake 46, along with from the below towards the top, tilt with mode to back face wall 21 tilt.
In reception room 24, be provided with guiding elements, said guiding elements guides the air of cooler 18 coolings to fan 32, and guiding elements comprises guiding wall portion 50 and guiding wall portion 51.Fan 32 is arranged on the top of the width central portion of cooler 18, and guiding wall portion 50 is configured in the top of cooler 18 with guiding wall portion 51 and is positioned at the both sides of fan 32.
Guiding wall portion 50 and guiding wall portion 51 are along with towards the top and approaching each other, and guiding wall portion 50 all forms crooked planar with guiding wall portion 51.
Form reception room 54 by guiding wall portion 50, upper wall portions 43 and side wall portion 41, and form reception room 55 by upper wall portions 43, side wall portion 42 and guiding wall portion 51.Reception room 54 is formed on and fan 32 opposition sides with respect to guiding wall portion 50, and reception room 55 is formed on and fan 32 opposition sides with respect to guiding wall portion 51.Reservoir 19 is housed in the reception room 54, and control part 30 is housed in the reception room 55.
As stated, through in reception room 54, accommodating reservoir 19, and in reception room 55, accommodate control part 30, the wasted space in can flexible utilization reception room 24 can improve the equipment installation effectiveness in the reception room 24.
Through reservoir 19 and control part 30 are housed in the reception room 24, the volume that can suppress cooling chambers such as refrigerating chamber 6, ice-making compartment 7, refrigerating chamber 8 and vegetable compartment 9 shown in Figure 1 is by constriction, can guarantee the volume of accommodating of cooling object such as vegetables significantly.
Fig. 6 is expression like said Fig. 3 and analog result shown in Figure 4, air stream in the both sides of fan 32 when configuration guiding wall portion 50 and guiding wall portion 51.Fig. 7 is the analog result of the air stream when representing not dispose guiding wall portion 50 with guiding wall portion 51.
As shown in Figure 6, be directed wall portion 50 by the air of cooler 18 cooling and guide well with guiding wall portion 51, suppressed the generation of vortex.On the other hand, as shown in Figure 7, in the comparative example that guiding wall portion 50 and guiding wall portion 51 are not set, on the bight of reception room 24, air forms vortex.
As stated, according to the cold room 1 of this embodiment 1, cooled air can utilize fan 32 to blow out well, and Quilt with air conditioning is supplied to cooling chambers such as refrigerating chamber 6 well, can improve cooling effectiveness.
In addition, guiding wall portion 50 is formed by foamed polystyrene heat-barrier materials such as (foamed polystyrene) with guiding wall portion 51.
In the example of Fig. 3 and Fig. 4, be illustrated making guiding wall portion 50 and guiding wall portion 51 crooked examples, but the shape of guiding wall portion 50 and guiding wall portion 51 also can adopt other shapes.
Fig. 8 is the stereogram of the variation of expression guiding wall portion 50 and guiding wall portion 51.In the example of said Fig. 8, guiding wall portion 50 and guiding wall portion 51 form tabular.In addition, in the example of Fig. 8, the interval of guiding wall portion 50 and guiding wall portion 51 is also along with diminishing from the below towards the top.
Air flow field simulation result's when Fig. 9 is expression employing guiding wall portion 50 shown in Figure 8 and guiding wall portion 51 figure.As said shown in Figure 9, when guiding wall portion 50 and guiding wall portion 51 form tabular, also be directed wall portion 50 by the air of cooler 18 coolings and guide to fan 32 well, and suppressed air and form vortex with guiding wall portion 51.
In addition, in the example of Fig. 8, through configuration reservoir 19 in reception room 54, and in reception room 55 Configuration Control Board 30, thereby also improved the installation effectiveness of equipment.
(embodiment 2)
Use Figure 10 and Figure 11 and suitably adopt Fig. 1 that the cold room of embodiment 2 is described.In addition, in Figure 10 and structure shown in Figure 11, for Fig. 1 to structure shown in Figure 9 identical or corresponding structure give identical Reference numeral and omit its explanation.
Figure 10 is the reception room 24 that is provided with of the cold room 1 of expression this embodiment 2 and the stereogram of fan 32 grades, and Figure 11 is the front view of reception room 24 grades shown in Figure 10.
Like Figure 10 and shown in Figure 11, cooler 18 is by supporting member 56 and supporting member 57 supportings, and said supporting member 56 is arranged between cooler 18 and the side wall portion 41, and supporting member 57 is arranged between side wall portion 42 and the cooler 18.
Between the upper surface of guiding wall portion 50 and cooler 18, be provided with gap 60.Between guiding wall portion 50 and upper wall portions 43, also be provided with gap 61.
Form reception room 54 by guiding wall portion 50, upper wall portions 43 and side wall portion 41, and be formed with gap 61 and gap 60 at reception room 54, through drive fan 32, the air of device 18 coolings that are cooled is in the 60 entering reception rooms 54 of gap.The cold air that gets into is with after reservoir 19 contacts, from the gap 61 be discharged to reception room 54 the outside.
The steam of the air of device 18 cooling forces down owing to be cooled, so when on reservoir 19, adhering to frost, frost is vaporized easily.Its result is difficult for adhering to frost on the reservoir 19.
Form reception room 55 by guiding wall portion 51, upper wall portions 43 and side wall portion 42, and contain control part 30 at reception room 55.Between the upper surface of guiding wall portion 51 and cooler 18, be provided with gap 62, between guiding wall portion 51 and upper wall portions 43, also be provided with gap 63.
If drive fan 32, the air of device 18 coolings that then are cooled gets in the reception room 55, and the air touch controls portion 30 of cooling.Thereafter, air from the gap 63 be discharged to reception room 55 the outside.
The steam of the air of device 18 coolings forces down owing to be cooled, so through making the air touch controls portion 30 of device 18 coolings that are cooled, the frost that adheres on the top board wall 20 is vaporized easily.Its result is difficult to adhere to frost on the control part 30.And, through making control part 30 contact cold airs, can cool off control part 30, thereby reduce the action failure of control part 30.
(embodiment 3)
Use Figure 12 to Figure 14 that the cold room of this embodiment 3 is described.In addition, at Figure 12 to the structure shown in Figure 14, for said Fig. 1 to the identical or corresponding structure of structure shown in Figure 11, give identical Reference numeral and omit its explanation.
Figure 12 is the stereogram of the cold room of expression this embodiment 3 reception room 24, fan 32 and the cooler 18 etc. that are provided with.As said shown in Figure 12, be provided with guiding elements 65 on the bight that in reception room 24, by upper wall portions 43 and side wall portion 41, forms.
Be provided with guiding elements 66 on the bight that in reception room 24, by upper wall portions 43 and side wall portion 42, forms.
On guiding elements 65, be formed with guide surface 67, said guide surface 67 guides the air of cooler 18 coolings to fan 32, and on guiding elements 66, also is formed with guide surface 68, and said guide surface 68 guides the air of cooler 18 coolings to fan 32.Guide surface 67 extends towards the upper end side of fan 32 from the side of fan 32 with guide surface 68, and guide surface 67 forms crooked planar with guide surface 68.
Air by cooler 18 coolings is directed face 67 and guide surface 68 guiding, has suppressed air and before arriving fan 32, has produced vortex.
Supporting member 56 is solid shape, occupy from guide surface 67 to upper wall portions 43 with the space of side wall portion 41, and constitute by foamed polystyrene heat-barrier materials such as (foamed polystyrene).Guiding elements 66 is solid shape, occupy from guide surface 68 to upper wall portions 43 with the space of side wall portion 42, and constitute by foamed polystyrene heat-barrier materials such as (foamed polystyrene).
Through the guiding elements 65 and guiding elements 66 that forms solid shape with heat-barrier material, the air that can suppress cooler 18 coolings is heated by reception room 24 outside heats.
(embodiment 4)
Use Figure 13 and Figure 14 that the cold room of this embodiment 4 is described.In Figure 13 and structure shown in Figure 14, for omitting its explanation to the identical or corresponding structure of structure shown in Figure 12 with Fig. 1.Figure 13 is the stereogram of expression reception room 24 and cooler 18 grades, and Figure 14 is the reception room 24 shown in Figure 13 and the front view of cooler 18 grades.
Like Figure 13 and shown in Figure 14, in reception room 24, on the bight that forms by upper wall portions 43 and side wall portion 41, be provided with guiding elements 70, and on the bight that forms by upper wall portions 43 and side wall portion 42, be provided with guiding elements 71.
Guiding elements 70 has the guide surface 72 of the air of direct cooled device 18 coolings, and guiding elements 71 also has the guide surface 73 of the air of direct cooled device 18 coolings.
In addition, in the example of Figure 13 and Figure 14, guiding elements 70 interconnects with guiding elements 71, and guide surface 72 and guide surface 73 74 interconnect at the abutment.Abutment 74 is in the top of fan 32, and is positioned at from the center of rotation of fan 32 and more relies on side wall portion 42 1 sides.
Guide surface 72 forms crooked planar, and behind the top of the bottom 76 of cooler 18 sides side and the fan 32 through fan 32, extends to abutment 74.Guide surface 73 forms crooked planar, and passes through the arrival abutment 74, side of fan 32 from the bottom 75 of cooler 18 sides.
Guide surface 72 and guide surface 73 is following crooked: in reception room 24, be positioned at fan 32 and the volume between the guiding elements 71 (guide surface 73) above the cooler 18, greater than in reception room 24, be positioned at fan 32 and the volume between the guiding elements 70 (guide surface 72) above the cooler 18.
Fan 32 is positioned on the central portion of cooler 18 widths, and the bottom 76 of guide surface 72 and the distance between the fan 32, equals the bottom 75 of guide surface 73 and the distance between the fan 32.On the other hand; On the part and same position that are positioned at above the bottom 75,76 in short transverse; When the distance between guide surface 72 and the fan 32 was compared with the distance between guide surface 73 and the fan 32, the distance between guide surface 73 and the fan 32 was greater than the distance between guide surface 72 and the fan 32.
In the guide surface 73, be positioned at the radius of curvature of part of the below of fan 32 upper ends, greater than in the guide surface 72, be positioned at the radius of curvature of part of the below of fan 32 upper ends.
Fan 32 in rotational direction R rotates.Particularly, fan 32 is to rotate through the mode of side wall portion 42 sides, upper wall portions 43 and side wall portion 41 successively.
Therefore, shown in figure 14,, be swirl shape and flow with the mode that edge rotation direction R rotates the nearly fan 32 of edge joint through the air of subcooler 18.
, drawn well from cooler 18 more near the air of side wall portion 42 1 sides through the ratio fan 32 in the cooler 18, edge rotation direction R rotates the nearly fan 32 of edge joint.Through the air that is positioned at fan 32 below parts in the cooler 18, be inhaled into the fan 32 directly over the cardinal principle that is positioned at cooler 18.
Through being positioned at than fan 32 in the cooler 18 more near the direction of the air of side wall portion 41 1 side sections stream, with the air stream that around fan 32, rotates towards roughly opposite direction.
Therefore, be cooled device 18 cooling air mainly being positioned at from cooler 18 than fan 32 more draw near the part of side wall portion 42 1 sides.Its result, the cold air of side wall portion 42 sides that flows through fan 32 is more than the cold air of the side wall portion that flows through fan 32 41 sides.
At this; On the same position of short transverse; When the distance between the distance between guide surface 73 and the fan 32 and guide surface 72 and the fan 32 is compared; Because the distance between guide surface 73 and the fan 32 is big, so the cold air of device 18 coolings that are cooled can flow through between fan 32 and the guide surface 73 well.And guide surface 73 and guide surface 72 form crooked planar, and the cold air that has suppressed around fan 32, to rotate forms vortex.
(embodiment 5)
Use Figure 15 that the cold room of this embodiment 5 is described.In addition, in structure shown in Figure 15, for said Fig. 1 to the identical or corresponding structure of structure shown in Figure 14, give identical Reference numeral and omit its explanation.
Among Figure 15, on the bight that in reception room 24, by upper wall portions 43 and side wall portion 41, forms, dispose guiding elements 65.On the bight that in reception room 24, by upper wall portions 43 and side wall portion 42, forms, dispose guiding elements 66.
In reception room 24, dispose guiding wall portion 50, be configured in to guiding wall portion 50 and guiding elements 65 devices spaced apart more near fan 32 sides.Between guiding elements 65 and guiding wall portion 50, be formed with cooling duct 80.
In reception room 24, dispose guiding wall portion 51, be configured in to guiding wall portion 51 and guiding elements 66 devices spaced apart more near fan 32 sides.Between guiding elements 66 and guiding wall portion 51, be formed with cooling duct 81.
The guide surface 67 of the guiding elements 65 of delimitation cooling duct 80 and the side of guiding wall portion 50, all crooked and almost parallel ground extension each other.The guide surface 68 of the guiding elements 66 of delimitation cooling duct 81 and the side of guiding wall portion 51, all crooked and almost parallel ground extension each other.The lower end part of cooling duct 80 and cooling duct 81 is in the upper end of cooler 18, and the upper end of cooling duct 80 and cooling duct 81 is towards fan 32 openings.In cooling duct 80, dispose reservoir 19, in cooling duct 81, dispose control part 30.
If drive fan 32, then cold air gets in the cooling duct 80 from the bottom of cooling duct 80, brushes on reservoir 19 from the cold air of cooler 18, and the frost that forms on the cooler 18 is vaporized easily.Equally, cold air gets in the cooling duct 81 from the bottom of cooling duct 81, and cold air brushes on control part 30, and the frost that forms on the control part 30 is vaporized easily.
Guiding elements 65,66 and guiding wall portion 50,51 all are made up of heat-barrier material, can suppress because of the heat of outside cold air to be warmed.
In addition, the major part of the air of cooler 18 coolings is directed wall portion 50,51 to fan 32 guiding.Guiding wall portion 50,51 bends to circular-arc, can suppress before arriving fan 32, to produce vortex through the air of cooler 18.
In the example of Fig. 1 to Figure 15, explained that shutter board 52 and shutter board 53 are configured in the example of the both sides of fan 32, but shutter board 52 is not necessary structure with shutter board 53.Figure 16 is the stereogram of first variation of expression Figure 12 example.In the example of said Figure 16, different with the example of Figure 12, shutter board 52 and shutter board 53 are not set on partition wall portion 25.And as shown in Figure 1, fan 32 tilts with the mode of falling to reception room 24 inclinations, but in the example of Figure 16, fan 32 is not to tilt.Figure 17 is the stereogram of second variation of expression Figure 12 example.In the example of said Figure 17, fan 32 does not tilt, but along partition wall portion 25 configurations.
Figure 18 is the stereogram of the variation of expression Figure 16 example, can make the guide surface 67 of guiding elements 65 and guiding elements 66 and guide surface 68 be the inclined plane.Figure 19 is the variation of expression Figure 17 example, as said shown in Figure 19, can make the guide surface 67 of guiding elements 65 and guiding elements 66 and guide surface 68 be the inclined plane.
(embodiment)
Use Figure 20, Figure 21 and below table 1, to the air output of the fan 32 that is applicable to example of the present invention, and the analog result of the air output of comparative example describes.
Figure 20 is the figure of the fan 32, guiding elements 65,66 and the cooler 18 that schematically show cold room of the present invention, and Figure 21 is the figure that schematically shows ear 90,91, fan 32 and cooler 18.
In addition, in below table 1, the fan inclination angle is meant the angle of inclination of the pivot center of fan 32 with respect to the dummy line of vertical direction extension.Like Figure 20 and shown in Figure 21, distance A is meant the distance between fan 32 and the cooler 18.Shown in figure 21, be meant the upper end and fan 32 distance in the horizontal direction of guiding elements 66 apart from B.In the example of Figure 20, distance C is meant the bottom of guiding elements 66,65 and the distance between the cooler 18.In Figure 21, distance C is meant the bottom of ear 90,91 and the distance between the cooler 18.Distance B is meant the distance between ear shown in Figure 21 90,91 and the fan 32.
In below table 1, example 1 is not for to be provided with guiding elements 65,66 in Figure 20, and fan 32 does not tilt.And distance A is 20mm.
(table 1)
Figure BDA00001860475800181
In table 1, ratio representes with said routine 1 air quantity to be the increase and decrease of the air quantity of benchmark, each example 2～22.In table 1, example 2～7 14,15,18,20,22 is in the example of Figure 20 with example, changes the inclination angle, distance A of fan respectively, apart from the example of B and distance C.In table 1, example 8,9,10,12,13,17 be in the example of Figure 21 of formation, suitably changes the inclination angle, distance A of fan, apart from the example of B, distance C and distance B.
In table 1, example 1,11,16,19,21 expressions that are recited as " earless " are not provided with the example of guiding elements 65,66, and have suitably changed the inclination angle and the distance B of fan.
As shown in table 1, example 2～7 is compared with example 1, and air quantity is constant basically.On the other hand, example 2～7 comprises guiding elements 65 and guiding elements 66, can suppress because of the heat of outside the air of cooler 18 coolings to be warmed.And, through replacement guiding elements 65,66, and adopt the guiding wall portion 50,51 shown in Fig. 4 etc., can form the reception room 54 and reception room 55 that can accommodate reservoir 19 and control part 30 equipment such as grade.
, compare with shown in the example 22 like example 20, tilt, can improve air output through making fan 32 with the mode that fan 32 does not tilt.Hence one can see that, and example 2～7 ratios 8～10 air outputs are many.Example 14,15 the air output also air output of ratio 12,13 is many.And the air output of the air output ratio 17 of example 18 is many.Therefore, the cooling effectiveness of the fan 32 of cold room 1 of the present invention is higher than the cooling effectiveness of cold room shown in Figure 21.
More than embodiment of the present invention is illustrated, but all characteristics all are exemplary rather than restricted characteristic in the disclosed embodiment of the application.Scope of the present invention represented by claim, and should comprise the content that is equal to claim and any distortion in the claim scope.And said numerical value etc. are illustrations, and the present invention is not limited to said numerical value and scope.
(industrial applicibility)
The present invention can be applied to cold room.

Claims (12)

1. cold room is characterized in that comprising:
Cooling chamber (6) cools off the cooling object;
Cooler (18) generates the cold air of supplying with to said cooling chamber (6);
Casing (2) is formed with cooler reception room (24), and said cooler reception room (24) is accommodated said cooler (18), and extends to the top from said cooler (18);
Peristome (31) is formed in the medial surface of said cooler reception room (24), is positioned on the part of said cooler (18) top;
Fan (32) is arranged at said peristome (31), supplies with said cold air from said peristome (31) to said cooling chamber (6);
Guiding wall portion is arranged in the said cooler reception room (24), and extends towards the upper end side of said fan (32) from the side of said fan (32), will guide to said fan (32) from the cold air of said cooler (18); And
Equipment can be accommodated in equipment holding chamber (52,53), is positioned at and said fan (32) opposition side with respect to said guiding wall portion, and is formed between said guiding wall portion and the preceding casing (2).
2. cold room according to claim 1 is characterized in that, said equipment holding chamber (52,53) comprising: suction inlet sucks the cold air from said cooler (18); And exhaust outlet, the air in said equipment holding chamber (52,53) is discharged to said fan (32).
3. cold room according to claim 1 is characterized in that, said guiding wall portion is formed by heat-barrier material.
4. cold room according to claim 1 is characterized in that,
Said casing (2) comprising: partition wall portion is positioned at said cooling chamber (6) side; The first side wall portion is arranged on the side of said partition wall portion; Second side wall portion is relative with said the first side wall portion; Back face wall portion, relative with said partition wall portion; And upper wall portions, be arranged on the upper end of said partition wall portion,
Form first bight by said partition wall portion and said the first side wall portion,
Form second bight by said partition wall portion and said second side wall portion,
Said guiding wall portion comprises: the first guiding side wall portion is adjacent with said fan (32); And the second guiding side wall portion, be positioned at and the said first guiding side wall portion opposition side with respect to said fan (32),
Said equipment holding chamber (52,53) comprising: first cuts apart reception room, is formed by said first bight and the said first guiding side wall portion; And second cut apart reception room, formed by said second bight and the said second guiding side wall portion.
5. cold room according to claim 1 is characterized in that,
Said cold room also comprises the gas-liquid separator that is connected in said cooler (18),
Said gas-liquid separator is housed in the said equipment holding chamber (52,53).
6. cold room according to claim 1 is characterized in that,
Said cold room also comprises the control part of the said cooler of drive controlling (18),
Said control part is housed in the said equipment holding chamber (52,53).
7. cold room according to claim 1 is characterized in that,
Said casing (2) comprising: partition wall portion is positioned at said cooling chamber (6) side; The first side wall portion is arranged on the side of said partition wall portion; Second side wall portion is relative with said the first side wall portion; Back face wall portion, relative with said partition wall portion; And upper wall portions, be arranged on the upper end of said partition wall portion,
Said peristome (31) is formed on the said partition wall portion,
Along with towards the top, said fan (32) tilts to said back face wall portion from said partition wall portion.
8. cold room according to claim 1 is characterized in that,
Said casing (2) comprising: partition wall portion is positioned at said cooling chamber side; The first side wall portion is arranged on the side of said partition wall portion; Second side wall portion is relative with said the first side wall portion; Back face wall portion, relative with said partition wall portion; And upper wall portions, be arranged on the upper end of said partition wall portion,
Said peristome (31) is formed on the said partition wall portion,
Said fan (32) is according to rotating through the mode of said the first side wall portion side, said upper wall portions side and the said second side wall portion side successively,
In said cooler reception room (24); Volume said cooler (18) top, between said fan (32) and the said the first side wall portion is greater than volume above the said cooler (18), between said fan (32) and said second side wall portion.
9. cold room is characterized in that comprising:
Cooling chamber (6) cools off the cooling object;
Cooler (18) generates the cold air of supplying with to said cooling chamber (6);
Casing (2) is formed with cooler reception room (24), and said cooler reception room (24) is accommodated said cooler (18), and extends to the top from said cooler (18);
Peristome (31) is formed in the medial surface of said cooler reception room (24), is positioned on the part of said cooler (18) top;
Fan (32) is arranged at said peristome (31), supplies with said cold air from said peristome (31) to said cooling chamber (6); And
Guiding wall portion (50,51) is arranged in the said cooler reception room (24), and extends towards the upper end side of said fan (32) from the side of said fan (32), will guide to said fan (32) from the cold air of said cooler (18),
Said guiding wall portion (50,51) is formed by heat-barrier material.
10. cold room according to claim 9 is characterized in that,
Said casing (2) comprising: partition wall portion is positioned at said cooling chamber (6) side; The first side wall portion is arranged on the side of said partition wall portion; Second side wall portion is relative with said the first side wall portion; Back face wall portion, relative with said partition wall portion; And upper wall portions, be arranged on the upper end of said partition wall portion,
Said peristome (31) is formed on the said partition wall portion,
Along with towards the top, said fan (32) tilts to said back face wall portion from said partition wall portion.
11. cold room according to claim 10 is characterized in that,
Said cold room also comprises: first shutter board is arranged in the said partition wall portion, is positioned on the part between said guiding wall portion (50,51) and the said the first side wall portion; And second shutter board, be arranged in the said partition wall portion, be positioned on the part between said guiding wall portion (50,51) and said second side wall portion,
Along with towards the top, said first shutter board and said second shutter board tilt to said back face wall portion from said partition wall portion.
12. cold room according to claim 9 is characterized in that,
Said casing (2) comprising: partition wall portion is positioned at said cooling chamber side; The first side wall portion is arranged on the side of said partition wall portion; Second side wall portion is relative with said the first side wall portion; Back face wall portion, relative with said partition wall portion; And upper wall portions, be arranged on the upper end of said partition wall portion,
Said peristome (31) is formed on the said partition wall portion,
Said fan (32) is according to rotating through the mode of said the first side wall portion side, said upper wall portions side and the said second side wall portion side successively,
In said cooler reception room (24); Volume said cooler (18) top, between said fan (32) and the said the first side wall portion is greater than volume above the said cooler (18), between said fan (32) and said second side wall portion.
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