CN100516726C - Refrigerator - Google Patents

Abstract

The invention provides the fridge. The invention modifies relevance and structure of the cold reduction, thermal fan and condensator, improving the dissipating heat efficiency, shortening the space and expanding volume. The fridge comprises machinery chamber (15) at the back of the fridge body (1), coolant compressor (12), condensator (13), and thermal fan (18). The thermal fan divides the air from body bottom into condensator and compressor.

Description

Refrigerator

Technical field

The present invention relates to improve the refrigerator of such as the configuration structure of cold medium compressor or condenser etc. with the Machine Room densification.

Background technology

In recent years, the big shapeization of common domestic refrigerator is remarkable, because the relation of kitchen space, appearance and size also becomes the state of the limit.Therefore, take in volume in order further to enlarge, studied by the high material of heat-insulating properties such as vacuum heat-insulating plate and reduced adiabatic thickness, thereby the case internal volume of expansion respective amount perhaps reduces various countermeasures such as dead band by the component layouts inside and outside the improvement case.

Patent applicant of the present invention has also applied for a kind of refrigerator, this refrigerator such as Figure 21 and shown in Figure 22, cold medium compressor 52 is arranged near the end on the width in the Machine Room 55 of the lower backside that is formed at refrigerator main body 51, the cooler 59 that will be used for the cold storage chamber interior be configured in the case of above-mentioned compressor 52 tops inboard and on width a side opposite with compressor, and condenser 53 is made the bottom surface portions that tabular is arranged on main body, and the control power panel 57 of refrigerator is configured in the broad space of the other end of the compressor on the width in the Machine Room 55, thereby by changing cooler 59 and compressor 52, the configuration relation or the structure of condenser 53 and control power panel 57, reduce the heat loss of cooler 59, improve adiabatic efficiency, and the radiating efficiency of raising Machine Room 55 or condenser 53, and then can obtain power saving effect (referring to Patent Document 1).

Patent documentation 1: TOHKEMY 2005-98559 communique.

Yet in the structure of above-mentioned patent documentation 1, condenser 53 is set at the bottom surface portions of refrigerator main body 51, and is set at upstream side with respect to radiator fan 58, and therefore, the air-flow of the condenser 53 of flowing through is inlet flows, so a little less than the wind-force, radiating efficiency is low.Thus, if the heat dissipation capacity that will obtain to stipulate just needs to increase the capacity of condenser self, become shortcoming big and that component costs uprises but so just exist to take up room.

In addition, when tabular condenser 53 being configured in the main body bottom surface in order to enlarge area of dissipation, to compare the width area big because with radiator fan 58, so can on condenser 53, produce the part of the heat exchange that does not utilize air-supply, and then because heat exchange is insufficient, the atmosphere temperature of this part uprises, thereby has the new problem that the heat-insulating property in the case is descended.

On the other hand, radiator fan 58 is in Machine Room 55, with compressor 52 disposed adjacent so that form axial flow at the width of main body, therefore, the depth and the height dimension of radiator fan 58 and fan drum 60 are big, thereby be unprofitable to dwindling of space, Machine Room, very little to the dischargeable capacity contribution that enlarges in the case.

In addition, also there is other the existing example that condenser and compressor and radiator fan is accommodated in the lump structure in the Machine Room, but in this case, owing to be subjected to the restriction in space evaporating dish must be arranged on top such as compressor, therefore the height dimension of Machine Room uprises, thereby still is unprofitable to dwindling of space, Machine Room.

And, in the structure of above-mentioned patent documentation 1,, on almost whole of main body bottom surface, disposed flat condenser 53 in order to enlarge area of dissipation, but because the width area of comparing with radiator fan 58 is big, even can on condenser 53, produce the part that heat exchange is not also carried out in air-supply.And then because heat exchange is insufficient, the atmosphere temperature of this part uprises, thus the problem that existence descends to the heat-insulating property in the case, and because the volume of condenser self is big, thereby existence occupies the shortcoming that the space becomes greatly and component costs uprises.

In addition, to the Machine Room is inner suck outside the suction inlet of gas be configured in the position that the bottom surface of refrigerator main body or the back side etc. are difficult to clean usually, thereby do not clean for a long time sometimes and shelve.In this case, a large amount of dust accretions will be arranged in suction inlet, thus the supply of the outer gas of blocking-up, the heat radiation of obstruction condenser etc., the problem that exists refrigerating capacity significantly to descend thus.

Summary of the invention

The above-mentioned problem of the present invention's consideration is made, its objective is the refrigerator that provides such, this refrigerator is by improving cold coal compressor or configuration relation or the structure in the Machine Room such as radiator fan and condenser, can improve the radiating efficiency in the Machine Room, and each key element parts of compact arrangement, dwindle the space, Machine Room, take in volume in the case of expansion respective amount.

In addition, the above-mentioned problem of the present invention's consideration is made, its objective is the refrigerator that provides such, this refrigerator is by improving cold coal compressor or radiator fan, and the configuration structure in the Machine Room such as condenser, can improve the radiating efficiency in the Machine Room, and compact each installing component that configuration in the Machine Room is set, seeking the space of Machine Room saves, take in volume in the case of expansion respective amount, and, both just to the Machine Room is inner suck outside the suction inlet of gas when obstruction has taken place, by making the free convection in the Machine Room of outer gas, also can the installing components such as condenser that dispose in the Machine Room be cooled off.

In order to address the above problem, the characteristics of refrigerator of the present invention are, comprising: the Machine Room is formed at the lower backside of refrigerator main body; Cold medium compressor is near a side setting of the width in this Machine Room; Condenser is along the back face wall configuration of the opposite side of the width of described Machine Room; Radiator fan is configured to relative with this condenser and axial flow is the fore-and-aft direction of main body; Evaporating dish is configured in the below of described condenser and described radiator fan; And printed circuit board, with described condenser in abutting connection with and be configured in the top of described compressor, described radiator fan will be delivered to described condenser and compressor from the shunting of bottom part body inhaled air.

In addition, the characteristics of refrigerator of the present invention are, comprising: the Machine Room is formed at the lower backside of refrigerator main body; Cold medium compressor is provided with near a side of the width in this Machine Room; Condenser, on the position higher than cold medium compressor along the back face wall configuration of the opposite side of the width of described Machine Room; And radiator fan, be configured to relative and axial flow is the fore-and-aft direction of main body with this condenser; Be formed with the suction inlet that is used for air being sucked mechanical chamber interior by radiator fan in the bottom of refrigerator main body, and on the back face wall of Machine Room, blow vent below being formed with on the position relative respectively with cold medium compressor, blow vent above being formed with on the position relative with condenser, when the supply from described suction inlet air supplied is blocked, by free convection, will deliver to described compressor and condenser from below blow vent inhaled air, discharge from the top blow vent again.

According to the configuration structure efficiently of above-mentioned key element parts, can make space, Machine Room densification, and improve the radiating efficiency of compressor and condenser, take in volume by enlarging in the case with respect to appearance and size, can obtain the high refrigerator of plot ratio.

And, according to the configuration structure efficiently of each parts that disposes in the Machine Room, can make space, Machine Room densification, and improve the radiating efficiency of compressor and condenser, take in volume by enlarging in the case with respect to appearance and size, can obtain the high refrigerator of plot ratio.In addition, by on the back face wall of Machine Room, blow vent below forming on the position relative respectively with cold medium compressor, blow vent above forming on the position relative with condenser, even under situation about being blocked from the outer gas supply of suction inlet because dust adheres to etc., by free convection, also can be to suck air from the below blow vent and to discharge air from the top blow vent, thereby make air at the Machine Room internal circulation, the parts such as condenser that can cool off mechanical indoor configuration thus prevent the decline of refrigerating capacity.

Description of drawings

Fig. 1 is the profilograph that the refrigerator of one embodiment of the present invention and another embodiment is shown.

Fig. 2 is the stereogram of Machine Room of watching the refrigerator of Fig. 1 from back side direction.

Fig. 3 is the amplification profilograph of Machine Room part among Fig. 2.

Fig. 4 is the drawing in side sectional elevation of the compressor section of Machine Room among Fig. 2.

Fig. 5 is the stereogram that the Machine Room part that is illustrated in Fig. 2 has been installed the state of cover body.

Fig. 6 is the drawing in side sectional elevation of printed circuit board part among Fig. 2.

Fig. 7 is the refrigerating chamber profile of watching from the front partly.

Fig. 8 is the stereogram of refrigerator mechanical chamber of watching another embodiment of the present invention of Fig. 1 from back side direction.

Fig. 9 is the amplification profilograph of Machine Room part among Fig. 8.

Figure 10 is the drawing in side sectional elevation of the compressor section of Machine Room among Fig. 8.

Figure 11 is the summary profilograph that the condenser state among Fig. 9 is shown.

Figure 12 is the stereogram of integrated (コ Application プ platform) that is used to illustrate the fixed structure of fan drum.

Figure 13 is the stereogram that the Machine Room major part is shown.

Figure 14 is integrated the stereogram that is used to illustrate the fixed structure of evaporating dish.

Figure 15 illustrates the profile that evaporating dish is fixed on the state on the integrated platform.

Figure 16 is the stereogram that the Machine Room part that is illustrated in Fig. 8 has been installed the state of cover body.

Figure 17 is the major part amplification stereogram of refrigerator.

Figure 18 is the exploded perspective view that the installment state of foreleg is shown.

Figure 19 is the stereogram that is fixed on the handle on the outer box plate.

Figure 20 is the major part amplification profile of refrigerator that the stationary state of handle is shown.

Figure 21 is the back view that the Machine Room of refrigerator in the past is shown.

Figure 22 is the profilograph of Figure 21.

The specific embodiment

Below, based on accompanying drawing an embodiment of the invention are described.In whole accompanying drawing, mark identical label for identical inscape.Be profilograph refrigerator main body 1 for the stereogram of the Machine Room part of watching in Fig. 2 at Fig. 1 from the back, the interior case 4 of the inner face by being arranged on outer container 2 via thermal wall 3, formed storage space, and be divided into a plurality of storerooms such as refrigerating chamber 5, vegetable compartment 6 and refrigerating chamber 7 by spaced walls.

Each storeroom remains on the design temperature of regulation with cooler 8 and freezing being cooled respectively with cooler 9 and fan 10,11 by the refrigeration for each refrigerating space and reefer space configuration, by the operation of the freeze cycle that constitutes by compressor 12 and condenser 13 etc., for each cooler 8,9 provides refrigerant.

Compressor 12 in the freeze cycle is arranged in the Machine Room 15 of the lower backside that is formed at refrigerator main body 1, and is installed in by liner and prolongs and the body width direction is provided with on integrated 16.

Condenser 13 receives the cold media gas of HTHPs from compressor 12, and makes this gas heat release, condenses.Refrigerant from condenser 13 is that capillary is provided to the refrigeration cooler 8 or freezing with in the cooler 9 in each storeroom via relief pipe, and on the air themperature that compartment interior is cooled to stipulate by evaporation.This condenser 13 will be on the two sides of the circuitous refrigerant pipe that forms welding as the wire (wire) of fin thus form overlapping three layers of flat member, and erect the back that is arranged on above-mentioned Machine Room 15.

Machine Room 15 as at the profilograph of the major part of Fig. 3, and shown in the drawing in side sectional elevation of compressor 12 parts of the below of Fig. 4 like that, on the lower backside of main body, formed to the side-prominent end difference 17 of refrigerating chamber 7 one, and be formed with by this end difference 17 and have along the depth of the regulation of width and the space of height dimension, side near the width in 15 spaces, Machine Room is provided with above-mentioned cold medium compressor 12, and be provided with wide cut space one side with the opposing party import in Machine Room 15 as hot channel and from compressor outside the radiator fan 18 and the above-mentioned condenser 13 of gas, and be used to evaporating dish 19 that evaporates defrost water etc.

Above-mentioned radiator fan 18 is provided between itself and the above-mentioned end difference 17 and forms plurality of gaps, periphery is arranged on the top and bottom of Machine Room 15, part is connected on the above-mentioned end difference 17 about making, and be installed on the bellmouth with the inside and outside fan drum that separates 20 of Machine Room 15, axial flow is the fore-and-aft direction of Machine Room 15.

On integrated 16 of the place ahead, lower end of the fan drum 20 that this radiator fan 18 has been installed, run through and be provided with the outer aspiration inlet 21 that forms by a plurality of openings along the width of fan drum 20.

Disposed the condenser 13 of above-mentioned three layer flat plate shape relatively to ground at the rear of radiator fan 18, these condenser 13 its lower ends are relative with radiator fan 18, and top extends to the top of Machine Room 15 and erects and be provided with along being formed at behind the outer container recess on the plate 2a 22.

Shown in the stereogram of Fig. 5, the back of above-mentioned Machine Room 15 is covered by cover body 23, this cover body 23 is arranged to cover till the upper end of above-mentioned condenser 13, and and the outer container of upper end after formed opening between the plate 2a, thereby formed air outflow port A25, this air outflow port A 25 is connected with the recess 22 and the cover body 23 formed pipelines 24 of the back plate that is provided with condenser 13 by setting.

At this moment, be arranged at the center of width of the condenser 13 at back with respect to setting, the center of radiator fan 18 is near a side of contiguous outer container side plate, and utilize the shape of cover body 23, the approximate centre direction on the air flow refrigerator main body width that is configured to blow out from radiator fan 18 flows.

And, on integrated 16 below described radiator fan 18 and the condenser 13, dispose reception from the defrost water of cooler 8,9 and carry out the evaporating dish 19 of evaporation process.This evaporating dish 19 constitutes the discharge pipe 26 that extend to be provided with from above-mentioned compressor 12 in inside is immersed in the water it, and the refrigerant heat by high temperature makes Defrost water evaporating.And be provided with ladder 19a, make the bottom of the back side one side of inner face be higher than the front portion.Near this ladder 19a part, be provided with division wall 19b, thereby ware inside is divided into a plurality of container portions, usually store defrost water and concentrate evaporation in the container at the shallow end of a side overleaf, but when a large amount of defrost water, by make defrost water from the back side one side overflow division wall 19b and flow into an anterior side, keep and the corresponding storage capacity of the maximum defrosting water yield of anticipation.

In addition, the drawing in side sectional elevation of the appropriate section of Fig. 4 upper position as shown in fig. 6 is such, printed circuit board 27 plate 2a behind the outer container is configured in the recess 22 of the back plate that is arranged in compressor 12 tops adjacent with above-mentioned condenser 13, and its outer surface is covered by cover body 23, and power circuit, alteration switch circuit, electromotor control circuit and the rectification circuit etc. of the operation that is used to control refrigerator are installed on this printed circuit board 27.The outstanding spacer ribs 23a that extends up and down that is provided with between the condenser 13 of inner face one side of cover body 23 and wiring plate 27, thereby play following effect: make air flow lower end inflow printed circuit board 27 parts of the part upward of shunting about quilt from above-mentioned spacer ribs 23a from radiator fan 18, thereby with its cooling.

Described printed circuit board 27 was set at the ceiling portion or the back side upper portion of refrigerator main body 1 in the past, thereby following shortcoming is arranged, that is: need come connecting wiring plate 27 and the electric component that is configured in the Machine Room 15 with bunch, and it is long more to connect distance, the processing of bunch in thermal wall 3 inside etc. is just complicated more, thereby can cause the number of working processes number to increase, the bunch cost uprises.Yet pass through said structure, because can effectively use the wasted space of above-mentioned condenser 13 sidepieces also can dispel the heat efficiently, thereby can improve the reliability of electronic unit, and can cut down heat sink on the wiring plate 27 etc., reduce cost and realize the miniaturization of wiring plate.In addition, because the allocation position of printed circuit board 27 is the positions near the many Machine Rooms 15 of electric component, thereby thereby the length that can shorten bunch reduces cost, and owing to need not to be configured in the thermal wall, number in the time that thereby worker can being cut down, and can also prevent the deterioration that the moisture absorption owing to urethane foam heat-barrier material 3 causes.

Each parts and condenser 13, printed circuit board 27 in the Machine Room 15 as above dispose, when above-mentioned radiator fan 18 rotates, shown in the arrow of above-mentioned Fig. 3 and Fig. 4, the outer gas in refrigerator the place ahead is inhaled into from above-mentioned suction inlet 21 by bottom part body, and blows out to 15 inside, Machine Room from faucet part.

Rearward flow along axial flow to the air that 15 inside, Machine Room blow out by radiator fan 18, bump against after the cover body 23, a part is such shown in the arrow of Fig. 3, be directed to the top, flow into by in the recess 22 of back plate and the pipeline 24 that cover body 23 forms, and the high wind speed that directly blows out from fan of utilization and the outer temperature degree of low temperature, carry out heat exchange with condenser 13, thereby make its cooling, and as shown in Figure 6, flow out to the outside from the air outflow port A 25 of cover body 23 upper ends.Particularly, above-mentioned condenser 13 is not enough with the wind-force that caused owing to the structure of suction one side that is configured in radiator fan in the past and to produce the situation in the place that can not carry out heat exchange greatly different owing to surface area, the big heat exchange air quantity that high wind speed brings can be obtained, the densification of condenser 13 self can also be realized.

Simultaneously, the part of air that blows out, is carried out heat exchange with compressor 12 and after dispelling the heat, is flowed out to the outside from running through the air outflow port B 28 that is arranged on cover body 23 sides to the center position shunting of body width owing to collide cover body 23.The air stream of this moment also is the air that blows out from fan 18, so wind speed height, air themperature is not carried out heat exchange but low temperature owing to compared with the past yet, thereby good cooling results, thereby can improve the radiating efficiency of compressor 12 and condenser 13, reduce power consumption by freezing operation efficiently, and, utilize the part of the air stream of being shunted can also carry out the cooling of printed circuit board 27 efficiently.

At this moment, the rotating shaft of radiator fan 18 is consistent with the fore-and-aft direction of Machine Room 15, this compares with the structure along the width of Machine Room in the past, owing to comprise that the shell sizes of fan diameter does not influence the depth size, so can be provided with the depth size that is used to be provided with radiator fan 18 more shallow, thereby can greatly reduce the volume of Machine Room 15.

In addition, for evaporating dish 19, because the air to the both sides of compressor 12 and condenser 13 1 side flow flows through its top, thereby the high-temperature atmosphere in the Machine Room 15 that causes with the heat of the discharge pipe 26 that is disposed at above-mentioned ware inside and by compressor and condenser matches, and plays the evaporation of defrost water efficiently.

In addition, as outside gas on the position relative below the fan drum 20 of the inlet passage of radiator fan 18, run through and be provided with aperture 20a with evaporating dish 19.This aperture 20a sucks the part of air that blows out to the downstream of radiator fan 18 from the bottom of refrigerator main body 1 by negative pressure, and it is mobile to produce air by making radiator fan 18 short circuits (シ ヨ one ト サ one キ Star ト) on the top of evaporating dish 19, thereby promote evaporation.

In addition, if make radiator fan 18 with respect to the direction of rotation of above-mentioned condenser 13 reverse the several months or annually about any period, then can blow and clean dust that adheres on condenser pipe and the wire fin (wire fin) etc. off, and can eliminate the obstruction of condenser 18, improve heat exchanger effectiveness.

Pass through said structure, owing to can consider compressor 12, condenser 13, radiator fan 18, evaporating dish 19 in the high-efficient disposition Machine Room, radiating efficiency ground 15 and the pipe arrangement of printing wiring version 27 and each freeze cycle, thereby can make Machine Room self compactness, thereby, correspondingly can enlarge the volume of taking in the case than can dwindle volume in the past.And then explanation can further enlarge the structure of taking in volume in the case.Fig. 7 is the profile of refrigerating chamber 7 parts of below of watching refrigerator main body 1 from the front, according to structure of the present invention, owing to can removing in the past to the floor space of the main body that flat condenser is provided with is set, thereby descended downwards the highly suitable amount that is provided with condenser in the past of the position of outer box plate 2b that forms the bottom surface of refrigerator main body 1.

Specifically, except the anterior of supporting refrigerator main body 1 and with the both sides installing space of the foreleg 29 of ground butt, on whole width and depth, make outer container bottom surface 2b outstanding downwards, outstanding length D downwards is till the position that in the past disposes condenser, and and ground between keep suitable gap, be used to adapt to the concavo-convex of ground and make the suction circulation of air that sucks to radiator fan 18.

With respect to the protuberance 30 of this outer container bottom surface, the interior case bottom surface 4a of formation refrigerating chamber 7 is provided with by the thermal wall 3a of specific thickness.Therefore,, descended and the height dimension of the protuberance 30 of outer container bottom surface 2a is measured accordingly, taken in the volume that volume has increased slippage with respect to the 4a ' position, interior case bottom surface in the past shown in two chain-dotted lines.

And, in the past because the condenser of high temperature is set in the bottom of outer container bottom surface, thereby need will and interior case bottom surface between insulating thickness obtain bigger, but in the above-described embodiments, owing to do not have high-temperature component below the 2b of outer container bottom surface, thereby can also reduce the insulating thickness of respective amount, thus, can further increase the volume of case inboard.

In addition, the both sides of the protuberance 30 of box plate have formed the recess that foreleg 29 is installed outside above-mentioned, but this part is the corner portions located of bottom part body, and be exactly the thickest part of insulating thickness originally, therefore, along with the curve generating of case inside corner, can fully guarantee the insulating thickness of corner portions located, and protuberance 30 impacts can for hardly case inner bottom surface 4a two side portions, thereby the shape change that need not to consider to extract out container bottoms.

In addition, in the above-described embodiments, as the layout in the Machine Room 15, watch close left side to be provided with compressor 12 from the back side, and be provided with condenser 13 etc. at opposite side, but much less also can left-right reversed, and the configuration of the storeroom in the case also is not limited to embodiment.

Below, based on accompanying drawing another embodiment of the invention is described.Be profilograph refrigerator main body 1 for the stereogram of the Machine Room part of watching in Fig. 8 at Fig. 1 from the back, the interior case 4 of the inner face by being arranged on outer container 2 via thermal wall 3, formed storage space, and be divided into a plurality of storerooms such as refrigerating chamber 5, vegetable compartment 6 and refrigerating chamber 7 by spaced walls.

Each storeroom remains on the design temperature of regulation with cooler 8 and freezing being cooled respectively with cooler 9 and fan 10,11 by the refrigeration for each refrigerating space and reefer space configuration, by the operation of the freeze cycle that constitutes by compressor 12 and condenser 13 etc., for each cooler 8,9 provides refrigerant.

Compressor 12 in the freeze cycle is arranged in the Machine Room 15 of the lower backside that is formed at refrigerator main body 1, and is installed in by liner and prolongs and the body width direction is provided with on integrated 16.

Condenser 13 receives the cold media gas of HTHPs from compressor 12, and makes this gas heat release, condenses.Refrigerant from condenser 13 is that capillary is provided to the refrigeration cooler 8 or freezing with in the cooler 9 in each storeroom via relief pipe, and the air themperature that compartment interior is cooled to stipulate by evaporation.This condenser 13 is erect the back that is arranged on above-mentioned Machine Room 15.

Machine Room 15 as at the profilograph of the major part of Fig. 9, and shown in the drawing in side sectional elevation of compressor 12 parts of the below of Fig. 4 like that, on the lower backside of main body, formed to the side-prominent end difference 17 of refrigerating chamber 7 one, and be formed with by this end difference 17 and have along the depth of the regulation of width and the space of height dimension, side near the width in 15 spaces, Machine Room is provided with above-mentioned cold medium compressor 12, and be provided with wide cut space one side with the opposing party import in Machine Room 15 as hot channel and from compressor outside the radiator fan 18 and the above-mentioned condenser 13 of gas, and be used to evaporating dish 19 that evaporates defrost water etc.

As shown in figure 11, radiator fan 18 is installed on the bellmouth 20a of fan drum 20, and is configured to axial flow on the fore-and-aft direction of Machine Room 15.Specifically, fan drum 20 following configurations: its bottom is fixed on integrated 16, and its upper end is fixed on the rear end of end difference 17, thereby has formed plurality of gaps S1 between end difference 17, and its periphery and end difference 17 butts.In more detail, shown in Figure 12,13, the Slip Hook 20b that fan drum 20 will form in its bottom, both sides inserts and runs through in the connecting hole 30 that is arranged on integrated 16, and by slip fixes the lower end to refrigerator main body 1 rear, and, end under the state on end difference 17 rear ends at the fastener 20c card that rearward extends setting from the upper end of fan drum 20, fixedly fixed the upper end by screw.According to such fixed structure, because easy and transaction capabilities excellence, also because fan drum 20 is pressed towards the rear by end difference 17 under the state of being installed to refrigerator main body 1, thus fan attachment shell 20 reliably.

On integrated 16 of the place ahead, lower end of this fan drum 20, run through and formed the outer aspiration inlet 21 that forms by a plurality of openings along the width of fan drum 20.Dispose the flat condenser 13 that is formed above-mentioned multilayer at the rear of radiator fan 18, these condenser 13 following setting settings: its lower end is relative with radiator fan 18, top extend to Machine Room 15 the top and with along being formed at the recess 22 on the plate 2a behind the outer container.

As shown in figure 11, condenser 13 welds by sandwich the air guide plate 13b that is formed by excellent heat conductivity bodies such as steel plates between the circuitous refrigerant pipe 13a that forms multilayer, thereby form writing board shape, on above-mentioned air guide plate 13b, cut and be formed with the opening 13c of conduct along the circulation of air mouth of refrigerant pipe 13a, make this incision sheet tilted configuration be used as wind direction guide plate 13d in the both sides of plate body simultaneously, thereby it is such as shown by arrows, guide the heat exchange action that promotes refrigerant pipe 13a from the air stream of radiator fan 18 upward, and, because air guide plate 13b self also is a heat carrier, thereby also plays the effect of heat sink.

At this moment, at radiator fan 18 in the air-supply of above-mentioned condenser 13, the downstream of the upstream side of air-supply and the refrigerant stream in the condenser 13 is mapped so that they are approaching, makes the upstream side of the downstream of air-supply and the refrigerant stream in the condenser 13 carry out heat exchange successively.Promptly, be configured under the two-layer situation at the refrigerant pipe 13a that will make a circulation to form, downstream by the refrigerant in the refrigerant pipe 13a that temperature is lower stream is configured in the side near radiator fan 18, can obtain cooling performance more efficiently, and, also the high temperature refrigerant side can be configured on the high position on the upper-lower position.

In addition, structure of condenser is not limited to above-mentioned record, the also overlapping multilayer of known wire condenser (wirecondenser) that welding heat radiating metal silk on the two sides of circuitous refrigerant pipe can be constituted, and erect and be arranged on, can also make up in addition configuration above-mentioned both.

And, on integrated 16 below above-mentioned radiator fan 18 and the condenser 13, disposed and be used to receive from the defrost water of cooler 8,9 and carry out the evaporating dish 19 of evaporation process.The extension of 19 inside is provided with discharge pipe 26 from above-mentioned compressor 12 to evaporating dish, is immersed in the defrost water of being stored by making this discharge pipe 26, constitutes the structure that makes Defrost water evaporating by the refrigerant heat of high temperature.

Shown in Figure 13,14, this evaporating dish 19 engages with suction inlet 21 by making the elastic hook 34 that is arranged at front end, and the fixing rear end of evaporating dish 19 of screw, thus, is fixed on integrated 16 the assigned position.In more detail, as shown in figure 15, the elastic hook 34 of approximate L word shape extend on the leading section that is arranged on evaporating dish 19 and with its formation one, by making projection 34a and suction inlet 21 engagings that are arranged on these elastic hook 34 front ends, the front portion of evaporating dish 19 is fixed on integrated 16.Then, under the state of the front portion of having fixed evaporating dish 19, will use screw 38 to fix from the outside of refrigerator main body 1 from the rear end of outstanding upward flange part that is provided with 36 in integrated 16 rear end and evaporation 19.Thus, fix by carry out screw from the outside, evaporating dish 19 is pulled to the rear, and then the elastic force by elastic hook 34 and to the projection 34a application of force rearward.

By evaporating dish 19 being fixed on integrated 16 as above-mentioned, it is easy that assembling operation becomes, and, elastic force by elastic hook 34 generations, evaporating dish 19 is securely fixed on integrated 16 and can not rocks, that can reduce therefore that vibration owing to radiator fan 18 or compressor 12 etc. takes place and contact sound fan drum 20 or integrated 16.

In addition, as shown in Figure 8, at the recess 22 that is arranged in the back plate above the compressor 12 adjacent with condenser 13, plate 2a disposes printed circuit board 27 behind the outer container, and power circuit, alteration switch circuit, electromotor control circuit and the rectification circuit etc. of the operation that is used to control refrigerator are installed on this printed circuit board 27.

This printed circuit board 27 is to extend the plane that protuberance 27b is set from base portion 27a to protrude shape, and under the state that is configured to recess 22, protuberance 27b is configured to be positioned at the top.And, be positioned at compressor 12 above the lower end of base portion 27a disposed the connector 40 that connects bunch, thereby the heat of utilizing compressor 12 to be produced has suppressed to produce dewfall in the coupling part of bunch, has prevented the damage of printed circuit board 27 thus.In addition, on the protuberance 27b of printed circuit board 27, dispose the bigger AC parts of caloric value such as rectification circuit or capacitor, discharged the heat that from AC parts etc., produces thus upward, thereby can suppress near the rising of the internal temperature the base portion 27a.At this moment, the top that is preferably in protuberance 27b is provided with space S2, and the heat that produces from AC parts etc. is trapped among the S2 of space, thereby the temperature that can suppress printed circuit board 27 more efficiently rises.

As shown in figure 16,15 the back in the Machine Room, dispose the PC plate cover 32 that constitutes by resins such as ABS, make covering at least dispose the outer surface of the protuberance 27b of AC parts, dispose the cover body 23 that constitutes by metals such as iron, make to cover other parts, promptly from the lower end of the Machine Room 15 that disposed compressor 12 to the upper end of condenser 13, formed the back face wall of Machine Room 15 thus.Like this, by constitute the back of Machine Room 15 with ABS resin and metal, can suppress to be transmitted on the PC plate cover 32 by cover body 23 from the heat of compressor 12 and condenser 13 generations.In addition, the resin that constitutes PC plate cover 32 preferably black etc. easily absorb photothermal color.

And, on the position relative of the upper end of cover body 23 with condenser 13 tops, run through being provided with top blow vent 25B, thus, and setting be provided with that formed pipeline 24 and 15 outsides, Machine Room are connected between the recess 22 of plate 2a behind the outer container of condenser 13.In addition, on the position relative of cover body 23 bottoms, run through being provided with below blow vent 28B with compressor 12.

Each parts in the Machine Rooms such as compressor 12 and condenser 13 15 as above dispose, when radiator fan 18 rotations, shown in the arrow of Fig. 9 or Figure 10, the outer gas in the refrigerator the place ahead bottom by refrigerator main body is sucked from suction inlet 21, and in Machine Room 15, blow out from faucet part.

Rearward flow along axial flow to the air that 15 inside, Machine Room blow out by radiator fan 18, but bump against after the cover body 23, a part is such shown in the arrow of Fig. 9, be directed to the top, in the recess 22 and pipeline 24 that cover body 23 forms of inflow by the back plate, and carry out heat exchange, it is cooled off by wind and the condenser 13 that directly blows out from fan, and as shown in Figure 6, flow out to the outside from the top blow vent 25B of cover body 23 upper ends.Particularly, condenser 13 can obtain the big heat exchange air quantity that high wind speed brings with to produce the situation of the position that can not carry out heat exchange greatly different owing to surface area in the past, thereby can also realize the densification of condenser 13 self.

Simultaneously, the part of air that blows out, is carried out heat exchange with compressor 12 and after dispelling the heat, is flowed out to the outside from running through the below blow vent 28B that is arranged on cover body 23 sides to the center position shunting of body width by colliding cover body 23.The air stream of this moment also is the air that blows out from fan 18, so wind speed height, air themperature is not also owing to carry out heat exchange but low temperature with comparing in the past, thereby good cooling results, thereby can improve the radiating efficiency of compressor 12 and condenser 13, can reduce power consumption by freezing operation efficiently.

At this moment, the rotating shaft of radiator fan 18 is consistent with the fore-and-aft direction of Machine Room 15, this compares with the structure along the width of Machine Room in the past, owing to comprise that the shell sizes of fan diameter does not influence the depth size, so can be provided with the depth size that is used to be provided with radiator fan 18 more shallow, thereby can greatly reduce the volume of Machine Room 15.

In addition, for evaporating dish 19, because the air to the both sides of compressor 12 and condenser 13 1 side flow flows through its top, thereby the high-temperature atmosphere in the Machine Room 15 that causes with the heat of the discharge pipe 26 that is disposed at above-mentioned ware inside and by compressor and condenser matches, and plays the evaporation of defrost water efficiently.

On the other hand, for example have such situation: because radiator fan 18 long-time running etc., dust accretions is in suction inlet 21, thus the clogging of generation suction inlet 21, the supply of the outer gas of blocking-up.In this case, radiator fan 18 both just rotation also become idling conditions, can't be outside 15 inside, Machine Room be sent into gas.But, refrigerator according to present embodiment, because blow vent 25B above the position relative with condenser 13 tops of cover body 23 formed, and below the position relative with cold medium compressor 12 formed blow vent 28B, therefore, the air that the device 13 that is condensed is heated is discharged to 15 outsides, Machine Room from top blow vent 25B, thus, outer gas from below blow vent 28B be introduced in drops Machine Room 15, the outer gas of this introducing and compressor 12 and condenser 13 etc. carry out discharging from top blow vent 25B after the heat exchange.Promptly, the heat that utilization produces from compressor 12 and condenser 13 etc., with below blow vent 28B as air entry, with top blow vent 25B as exhaust outlet, the 15 inner formation free convections in the Machine Room, can cool off configured parts in the Machine Rooms 15 such as condenser 13 thus, can guarantee the refrigerating capacity of freeze cycle.

Yet as shown in figure 17, the end in the both sides, the place ahead of the outer container bottom surface 42 of the bottom surface that constitutes refrigerator main body 1 has disposed the foreleg 29 of front portion to prevent overturning forwards of supporting refrigerator main body 1, and side being provided with is used to carry the handle 44 of refrigerator main body 1 within it.

As shown in figure 18, foreleg 29 comprises the base portion 29a that is fixed in outer container bottom surface 42 and is arranged at the shank 29b of its front end bottom, base portion 29a fixes by screw and is fixed on the outer container bottom surface, so that shank 29b is at the place ahead and the base plate butt of the front of refrigerator main body 1.

In such foreleg 29, when refrigerator main body 1 overturning forwards just, on the base portion 29a of foreleg 29, torque to the direction of leaving outer container bottom surface 42 is had an effect, and also has an effect by the power of stretching to outer container bottom surface 42 1 laybacks that is arranged at that the screw 29c that is used for fixing screw in the base portion 29a width central authorities produces simultaneously.Therefore, the flexural deformation of the width that its both sides of generation are shifted downwards on base portion 29a.Therefore, by on base portion 29a and contact-making surface that the outer container bottom surface contacts, forming flanging muscle 29d, can improve the flexural deformation that intensity suppresses the width of base portion 29a, thereby can prevent refrigerator main body 1 overturning forwards to width.

Shown in Figure 19,20, handle 44 fixedly is fixed in the recess 46 that is formed on the outer container bottom surface by screw, so that the handle portion 44a that the people's of carrying refrigerator main body 1 finger can pass and hold is positioned at the place ahead of refrigerator main body 1 front.Like this, by handle portion 44a being configured in the place ahead of refrigerator main body 1 front, the bearer grips easily, compares with the situation that handle portion 44a is configured in the bottom surface of refrigerator main body 1, the position of outer box plate can be reduced downwards, thereby the volume of taking in the case of respective amount can be increased.

According to the present invention, can be used in by the Machine Room compactness is increased in the refrigerator of case internal volume.

Claims (7)

1, a kind of refrigerator is characterized in that, comprising: the Machine Room is formed at the lower backside of refrigerator main body; Cold medium compressor is near a side setting of the width in this Machine Room; Condenser is along the back face wall configuration of the opposite side of the width of described Machine Room; Radiator fan is configured to relative with this condenser and axial flow is the fore-and-aft direction of main body; Evaporating dish is configured in the below of described condenser and described radiator fan; And printed circuit board, with described condenser in abutting connection with and be configured in the top of described compressor,

Described radiator fan will be delivered to described condenser and compressor from the shunting of bottom part body inhaled air.

2, refrigerator according to claim 1, it is characterized in that, condenser is the tabular of multilayer, and be straightened in the formed pipeline of cover body that is arranged on by the plate behind the outer container on top, Machine Room and the covering back side, Machine Room, a part and described condenser from the cooling air of radiator fan carry out flowing out upward after the heat exchange, and remaining cooling air is sent to compressor one side.

3, refrigerator according to claim 1 is characterized in that, plate disposes printed circuit board behind the outer container on compressor top, and covers this printed circuit board with cover body, and makes the part from the cooling air of radiator fan flow into the printed circuit board part.

4, refrigerator according to claim 1 and 2, it is characterized in that, the position relative with evaporating dish below the fan drum of radiator fan run through aperture is set, and makes the part of air short circuit that blows side out to the downstream one of radiator fan from the refrigerator main body bottom, and by described aperture.

5, refrigerator according to claim 4, it is characterized in that, inner face at evaporating dish is provided with ladder so that the bottom of the back side one side of evaporating dish is higher than the bottom of front portion one side of evaporating dish, and spacer ribs is set near end difference is divided into a plurality of container portions, usually in the container of the rear side at the shallow end, store defrost water and evaporate, when a large amount of defrost water, make defrost water from the back side the anterior side of one side direction overflow.

6, refrigerator according to claim 1, it is characterized in that, make the outer box plate that forms the refrigerator main body bottom position from the suitable foreleg installing space of the insulating thickness of having removed width and two side, along width, refrigerator mounting surface is downwards given prominence to also and is kept between the ground circulating sucking the gap of air, and the case bottom surface is positioned on the raised face of this below across thermal wall in making.

7, a kind of refrigerator is characterized in that, comprising: the Machine Room is formed at the lower backside of refrigerator main body; Cold medium compressor is near a side setting of the width in this Machine Room; Condenser is disposed at than on the high position of cold medium compressor along the back face wall of the opposite side of the width of described Machine Room; And radiator fan, be configured to relative and axial flow is the fore-and-aft direction of main body with this condenser,

Be formed with the suction inlet that is used for air being sucked mechanical chamber interior by radiator fan in the bottom of refrigerator main body, and on the back face wall of Machine Room, blow vent below being formed with on the position relative respectively with cold medium compressor, blow vent above being formed with on the position relative with condenser, when the supply from described suction inlet air supplied is blocked, by free convection, make from below blow vent inhaled air and be passed to described compressor and condenser, discharge from the top blow vent again.

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