CN103363760A - Freezing/cooling device - Google Patents
Freezing/cooling device Download PDFInfo
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- CN103363760A CN103363760A CN2012103656259A CN201210365625A CN103363760A CN 103363760 A CN103363760 A CN 103363760A CN 2012103656259 A CN2012103656259 A CN 2012103656259A CN 201210365625 A CN201210365625 A CN 201210365625A CN 103363760 A CN103363760 A CN 103363760A
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Abstract
The present invention provides a freezing/cooling device which is uncomplicated in structure, and can raise safety and efficiently remove frost. Each fan shield heater (4) in a unit cooler (A) comprises a first straight line portion (41) and a straight line portion which is formed in a manner of surrounding a part of the periphery of a central hub portion of a fan (6) of an air blower. The first straight line portion is mounted under a fan shield (2) and straightly extends along the width direction of the fan shield (2).
Description
Technical field
The present invention relates to such as with the cooling such as in freezer, the freezer freezing/cooling device.
Background technology
Exist before such as with the cooling such as in freezer, the freezer freezing/cooling device (below be called the unit cooler).This unit cooler has the body box that is formed with suction inlet and blow-off outlet mostly, be arranged on the evaporimeter of the position relative with the blow-off outlet of body box and be arranged on air blast in the body box.Evaporimeter is supplied with next cold-producing medium evaporation by making by the effect that is equipped on outside compressor, and air is cooled off.Air blast is the air supply evaporimeter of the cooling object space that waits in the storehouse, and, being cooled off object space by the chilled air supply of evaporimeter.In addition, in some unit coolers, at the blow-off outlet of body box, be provided with and prevent that foreign matter from entering in the body box or the hand channel that prevents the operator enters fan guard in the body box by blow-off outlet.
In these unit coolers, owing to cool off constantly running, not only at evaporimeter and air blast periphery, on framework, fan guard, also adhered to a large amount of frosts.If keep these frosts at this point, the wind that then passes through evaporimeter, fan guard is under the impact of frost, and the pressure loss increases, thereby causes the cooling capacity decrease of unit cooler.For this reason, in the unit cooler, be provided with the heater of a plurality of defrostings.
As such technology, disclose before the heater of defrosting has been directly installed on the fan guard.In addition,, disclose that " a kind of cooling device: this cooling device has the heater of ring-type and the plate that uncovers as carrying out improved technology to defrosting heater being directly installed on the fan guard this technology.At least one side section of heater and the bottom inner face of said fans protective cover join, and another side section forms below evaporimeter extends.The plate that uncovers is made of the reasonable metal of heat conductivity, the bottom is fixedly installed on the outside, bottom of said fans protective cover towards the bottomland of front upper place inclination and covering said fans protective cover.The front-end edge section of above-mentioned drain pan is positioned at the place ahead of the bottom of the above-mentioned plate that uncovers " (for example referring to patent documentation 1).
Patent documentation 1: Japan's special permission No. 3861240 communique (Fig. 2 etc.)
Summary of the invention
In the cooling device of patent documentation 1 record, with the fan cover heating of large as a comparison sheet metal, and via this sheet metal fan guard is heated, therefore, for a frost that is attached on the whole fan guard is melted, need large heat.For this technology, when imagination adopts electric heater, consider from power consumption and efficient aspect, still leave some room for improvement.But, for the technology of patent documentation 1 record, making when heater is directly installed on structure on the fan guard, because the grid interval of fan guard is large, so, may not reach the purpose that arranges of fan guard.For this reason, the technology for patent documentation 1 record can not merely be directly installed on heater on the fan guard.
On the other hand, consider from power consumption and efficient aspect, when utilization is defrosted by the warmed-up air of heater, still can not effectively the frost that is attached to the fan guard bottom be removed.If there is residual frost, then repeatedly cool off running, defrosting running, during can produce sleeping ice, icicle at fan guard.In order to remove these ice, not only to consume more electric power, and during removal, can not cool off running, Efficiency Decreasing.
In addition, in the such mode of heating of the cooling device of patent documentation 1 record, in order to remove the frost that is attached in fan, the fan hub section, also require further to improve.If frost is attached in the hub section of fan, fan, then the quality of fan changes, and fan can become unbalanced running.If fan becomes unbalanced running, then send unusual sound from fan.If under this state, continue the running of fan, then may cause the fan damage.
The present invention makes in order to address the above problem, its objective is provide structure uncomplicated, can improve security, and remove expeditiously the frost produced freezing/cooling device.
Of the present invention freezing/cooling device has body box, fan guard and fan guard heater; The air blast of in above-mentioned body box, accommodating evaporimeter and this evaporimeter being ventilated, the front side wall of body box is made of the fan cover with blow-off outlet corresponding with above-mentioned air blast; The said fans protective cover combines many wire rods, is installed on the said fans lid in the mode in the place ahead of covering above-mentioned blow-off outlet; Said fans protective cover heater is arranged at the above-mentioned blow-off outlet side of said fans protective cover; Above-mentioned air blast has fan and as the central hub portion of the base portion of this fan; Line part or bend that said fans protective cover heater has the first line part and forms in the mode of at least a portion around the central hub portion of the fan that surrounds above-mentioned air blast; Width along the said fans protective cover extends above-mentioned the first line part point-blank in the bottom of said fans protective cover.
According to the present invention, can realize constructing uncomplicated, can effectively heat fan guard and considered security freezing/cooling device.
Description of drawings
Fig. 1 be from oblique upper see embodiment of the present invention freezing/the stereoscopic figure of cooling device.
Fig. 2 be amplify expression keep watch the fan protective cover heater be installed in embodiment of the present invention freezing/stereogram of state on the fan guard of cooling device.
Fig. 3 be the expression embodiment of the present invention freezing/stereogram of the structure of the fan guard of cooling device.
Fig. 4 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Fig. 5 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Fig. 6 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Fig. 7 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Fig. 8 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Fig. 9 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Figure 10 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Figure 11 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Figure 12 be for the explanation embodiment of the present invention freezing/key diagram of the concrete size of the fan guard of cooling device.
Figure 13 be the explanation embodiment of the present invention freezing/key diagram of the erection sequence of the fan guard heater of cooling device.
Figure 14 be the explanation embodiment of the present invention freezing/key diagram of the erection sequence of the fan guard heater of cooling device.
Figure 15 is the simulation drawing for the air current flow in the explanation cooling object space.
Figure 16 be for the explanation embodiment of the present invention freezing/key diagram of other shape of the fan guard heater of cooling device.
The explanation of Reference numeral
1 ... fan cover, 1a ... blow-off outlet, 2 ... fan guard, 3 ... drain pan, 4 ... the fan guard heater, 4A ... the fan guard heater, 4B ... the fan guard heater, 4C ... the fan guard heater, 4D ... the fan guard heater, 4D-1 ... primary heater, 4D-2 ... secondary heater, 4a ... the heater maintaining part, 4a-1 ... the bending spatial portion, 4b ... the heater maintaining part, 4b-1 ... protuberance, 4c ... the heater maintaining part, 4d ... the heater maintaining part, 4e ... the heater maintaining part, 5 ... connector, 6 ... fan, 11 ... side cover, 12 ... loam cake, 13 ... suspender member, 14 ... connector, 15 ... control box, 41 ... the first line part, 41A ... the first line part, 41B ... the first line part, 41C ... the first line part, 41D ... the first line part, 42 ... the second line part, 42A ... the second line part, 42B-1 ... the second line part, 42B-2 ... the second line part, 42C ... the second line part, 42D ... the second line part, 43 ... the 3rd line part, 43A ... the 3rd line part, 43C ... the 3rd line part, 44 ... the 4th line part, 44A ... the 4th line part, 44B-1 ... the 4th line part, 44B-2 ... the 4th line part, 44C ... the 4th line part, 45D-1 ... the 5th line part, 45D-2 ... the 5th line part, 51 ... the first kink, 51A ... the first kink, 51B ... the first kink, 51C ... the first kink, 51D ... the first kink, 52 ... the second kink, 52A ... the second kink, 52C ... the second kink, 53 ... the 3rd kink, 53A ... the 3rd kink, 53C ... the 3rd kink, 53C-1 ... the 3rd kink, 53C-2 ... the 3rd kink, 55-1 ... the first bend, 55-2 ... the first bend, 56 ... the second bend, 57 ... the 3rd bend, 60 ... molded section, 61 ... distribution, 100 ... body box, A ... the unit cooler
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 be from oblique upper see embodiment of the present invention freezing/cooling device (refrigerating plant, cooling device (below be called unit cooler A)) stereoscopic figure.Structure and the action of unit cooler A are described with reference to Fig. 1.Unit cooler A is used for cooling off in the storehouse such as being arranged in freezer, the freezer etc.Comprise that among following each figure of Fig. 1, the magnitude relationship of each component parts is sometimes not identical with material object.In addition, among each figure, the parts that the expression that is marked with the same tag is identical or suitable, this is identical in specification full text.
[structure of unit cooler A]
The structure of unit cooler A at first is described.Unit cooler A has body box 100, evaporimeter and air blast.Evaporimeter is housed in the body box 100, with the common kind of refrigeration cycle that forms such as the compressor of outside, expansion valve, condenser.Air blast is housed in the body box, the air supply evaporimeter of cooling object space.
Top at body box 100 namely covers, and is provided with a plurality of (being 4 among Fig. 1) suspender member 13.Usually, body box 100 utilizes these suspender members 13 to arrange with loam cake 12 and the mode that the end face that cools off object space joins.At this moment, body box 100 is configured to the side wall surface state in opposite directions that its back separates predetermined space ground and cooling object space.
In addition, the back opening of body box 100 is as the suction inlet (not shown) of air in the storehouse (air is cooled).In body box 100, dispose evaporimeter (not shown) in the mode towards this suction inlet.Air blast with propeller shape wind feeding blades (fan 6) is arranged in the body box 100 with the state of rear side towards evaporimeter.In addition, air blast has the central hub portion as the base portion of fan 6.In fan cover 1 and front face side air blast the position in opposite directions that consists of body box 100, formed the blow-off outlet 1a of circular open.In addition, represent as an example of the body box 100 of having accommodated 2 air blasts example among Fig. 1, but the number of accommodating of air blast is not particularly limited, the number of accommodating of air blast can be 1, also can be more than 3.
Below body box 100, be provided with the drain pan 3 of plate-like.This drain pan 3 covers the bottom surface opening of body box 100, catches the condensed water that produces at evaporimeter.The condensed water of being caught by drain pan 3, by be formed on drain pan 3 on the scupper hose (not shown) that is being connected of connector 14 after be discharged to the outside of body box 100.
In addition, consisting of on the fan cover 1 of body box 100, in the mode in the place ahead of covering blow-off outlet 1a fan guard 2 is being installed.This fan guard 2 is that a plurality of wire rods with formations such as metals combine in length and breadth, forms three-dimensional container-like.As describing in detail among Fig. 2, the container-like inside at fan guard 2 is installed with fan guard heater 4.In addition, in unit cooler A, the interval that consists of the wire rod of fan guard 2 is 10～12mm.Finger that constitutes thus the operator etc. is not easy to put in from fan guard 2 structure of the inside of body box 100, and is safer.
And with it relatively, fan guard before mostly be vertical wire rod be spaced apart that 60mm is above, operator's finger etc. puts in the structure in the body box easily.That is, fan guard before, the energy consumption when causing defrosting because of wire rod large more, adopts the wide structure in interval of wire rod.
In addition, be provided with control box 15 at the fan cover 1 that consists of body box 100.In control box 15, taking in the electric parts such as converting means, control substrate.In addition, among Fig. 1, the state that laterally is arranged side by side with fan guard 2 in the horizontal direction take control box 15 represents that still, the setting position of control box 15 is not limited thereto as example.
[the common running action of unit cooler A]
Below, the action of unit cooler A is described.Outer setting at the cooling object space off-premises station etc., discharges cold-producing medium after compressed from carrying thereon compressor (not shown).This discharging refrigerant flows into and is equipped on the condenser on the off-premises station etc. and dispels the heat.Cold-producing medium after the condenser heat radiation then is inflated the valve decompression.Be inflated the post-decompression cold-producing medium of valve and flow into evaporimeter.This evaporimeter is arranged in the body box 100, and the air (below be called the air storehouse in) of cooling object space is fed into evaporimeter from being arranged on equally body box 100 interior air blasts.
Flow into that air carries out heat exchange and evaporates (gasification) in the storehouse of cold-producing medium and air blast supply in the evaporimeter.At this moment, air is cooled in the storehouse.Make air blast running, thereby air is inhaled in the body box 100 from the suction inlet (not shown) of body box 100 in the storehouse, is cooled during by evaporimeter, the place ahead of 100 blows out this cooled air from blow-off outlet 1a towards body box.That is, unit cooler A is connected with the freezing equipment that is arranged on the outside and forms kind of refrigeration cycle, will cool off the object space cooling.In addition, in evaporator evaporation cold-producing medium return subsequently compressor.
[the detailed structure of fan guard 2 and fan guard heater 4]
Describe fan guard 2 and fan guard heater 4 in detail at this.Fig. 2 amplifies the expression fan protective cover heater 4 of keeping watch to be installed in the stereogram of the state on the fan guard 2.Fig. 3 is the stereogram of the structure of expression fan guard 2.With reference to Fig. 2 and Fig. 3, describe fan guard 2 and fan guard heater 4 in detail.
As shown in Figure 2, in the blow-off outlet 1a of fan guard 2 side fan guard heater 4 is installed.That is, fan guard 2 forms the three-dimensional container shape, in this container-like inside fan guard heater 4 is installed.In addition, 4 limits of the wire rod aggregate that combines in length and breadth are bent into approximate right angle (specifically, as shown in Figure 4 95 °) in the same direction, form fan guard 2 container-like.The heater maintaining part 4a～4e that is made of the keeper that keeps fan guard heater 4 is being set at fan guard 2.Fan guard heater 4 is used for heating fan guard 2.
The general structure of fan guard heater 4 at first is described.Fan guard heater 4 shown in Figure 2 is made of a heater.Fan guard heater 4 is made of the heater that the first line part 41, the first kink 51, the second line part 42, the second kink 52, the 3rd line part 43, the 3rd kink 53, the 4th line part 44 are connecting.Connecting molded 60 in the bottom of the 4th line part 44.
The first line part 41 constitutes, and under fan guard heater 4 is installed in state on the fan guard 2, is installed in the bottom of fan guard 2, and the width in the inboard of fan guard 2 extends point-blank.
The first kink 51 is bent into acute angle to the both ends of the first line part 41 and consists of.Therefore, formed a pair of the first kink 51 at fan guard heater 4.
The second line part 42 constitutes, and under fan guard heater 4 is installed in state on the fan guard 2, extends point-blank towards the top center side of fan guard 2 from an end of the first kink 51.Therefore, on fan guard heater 4, formed a pair of the second line part 42.A pair of the second line part 42 is close to each other towards the top center side of fan guard 2, extends to the position of at least a portion around the central hub portion of surrounding fan 6 always.Specifically, see from face side fan guard heater 4 is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, a pair of the second line part 42 forms the length on top that one side's side end arrives the central hub portion of fan 6.
The second kink 52 is bent into acute angle to the upper end of the second line part 42 and consists of.Therefore, formed a pair of the second kink 52 at fan guard heater 4.
The 3rd line part 43 constitutes, and under fan guard heater 4 is installed in state on the fan guard 2, extends point-blank towards the side of fan guard 2 from an end of the second kink 52.Therefore, formed a pair of the 3rd line part 43 at fan guard heater 4.A pair of the 3rd line part 43 is separated from each other towards the side of fan guard 2.
The 3rd kink 53 is bent into approximate right angle to the end of close fan guard 2 sides of the 3rd line part 43 and consists of.Therefore, formed a pair of the 3rd kink 53 at fan guard heater 4.
The 4th line part 44 constitutes, and under fan guard heater 4 is installed in state on the fan guard 2, extends point-blank below the side direction of fan guard 2 from an end of the 3rd kink 53.Therefore, formed a pair of the 4th line part 44 at fan guard heater 4.
As mentioned above, fan guard heater 4 by 4 line parts (the first line part 41～the 4th line part 44) with are connected a kink (the first kink 51～the 3rd kink 53) and connect and consist of.As shown in Figure 2, fan guard heater 4 constitutes symmetrical shape.
In addition, formed respectively molded 60 in the bottom of a pair of the 4th line part 44, this molded 60 is that distribution 61 is connected to position on the fan guard heater 4.Connector 5 is connected with molded 60 via distribution 61, feeds electrical power to fan guard heater 4 via connector 5.
In addition, heater maintaining part 4a can be formed by the single line material, also can be formed by many wire rods.When forming heater maintaining part 4a with the single line material, as long as make a part of phase ground connection installation as wire rod with the wire rod that consists of fan guard 2 of the substantial middle section of heater maintaining part 4a.When forming heater maintaining part 4a with many wire rods, available each wireform becomes bending spatial portion 4a-1.At this moment, a part of phase ground connection installation with the wire rod that consists of fan guard 2 of the substantial middle section side end of bending spatial portion 4a-1 is got final product.In addition, the width ground that heater maintaining part 4a can be parallel to fan guard 2 forms, and also can just be formed extended at both sides obliquely in the precalculated position as shown in Figure 2.
In addition, heater maintaining part 4c and heater maintaining part 4d are not limited to hook-shaped so long as can hook the shape of the 4th line part 44 and get final product.But, hook-shaped by heater maintaining part 4c and heater maintaining part 4d are formed, can suppress the transverse shakiness of the 4th line part 44.In addition, as long as heater maintaining part 4c and heater maintaining part 4d can hook the 4th line part 44, might not be chimeric with the 4th line part 44.
The following describes the distance relation of heater maintaining part 4a～4e and fan 6.
So that the contact position of the contact position of the contact position of heater maintaining part 4a and fan guard heater 4, heater maintaining part 4c and fan guard heater 4, heater maintaining part 4d and fan guard heater 4 forms heater maintaining part 4a, heater maintaining part 4c, heater maintaining part 4d successively away from the mode of fan 6.That is, the distance apart from fan 6 is heater maintaining part 4a〉heater maintaining part 4c〉heater maintaining part 4d.Like this, by the retaining part of fan guard heater 4 not being arranged on apart from the distance of fan 6 equalizations, fan guard heater 4 can be remained on apart from fan 6 and fan guard 2 can both balance the position.
Namely, by the retaining part of fan guard heater 4 not being arranged on apart from the distance of fan 6 equalizations, can tilted configuration fan guard heater 4, and then fan guard heater 4 can be remained on apart from fan 6 and fan guard 2 appropriate distance all.Therefore, fan guard heater 4 can not make resinous fan 6 overheated, can significantly suppress the distortion of fan 6.In addition, there be not fan guard heater 4 problem overheated with the contact site of fan guard 2 in the problem that does not yet have fan guard heater 4 to contact with the outside of fan guard 2 yet.
In addition, so that the contact position of the contact position of heater maintaining part 4d and fan guard heater 4, heater maintaining part 4e and fan guard heater 4 forms heater maintaining part 4d, heater maintaining part 4e successively away from the mode of fan 6.That is, the distance apart from fan 6 is heater maintaining part 4d〉heater maintaining part 4e.Like this, can guarantee distance between molded 60 and the first line part 41 and the first kink 51.Therefore, molded 60 of large multiplex resin-shaped one-tenth does not contact with fan guard heater 4, can prevent that molded 60 is heated.That is, molded 60 can melting, and inner distribution can not expose, so, can not produce the problems such as electric leakage.
Fig. 4～Figure 12 is the key diagram for the concrete size of explanation fan guard 2.Below, with reference to Fig. 4～Figure 12, concrete size or the concrete shape of fan guard 2 is described.Concrete size and the concrete shape of fan guard 2 have been shown in Fig. 4～Figure 12, and still, these sizes and shape only show an example, and the size of each parts and shape are not limited to illustrated size and shape.
The overall dimensions of fan guard 2 at first is described with reference to Fig. 4.Fig. 4 is the state of fan guard 2 is seen in expression from cooling object space side figure.As shown in Figure 4, the Breadth Maximum of fan guard 2 is 438mm.If comprise for the length that fan guard 2 is installed in the installing component on the body box 100, then be 463mm.In addition, the height of fan guard 2 is 430.5mm.
The size of heater maintaining part 4a then, is described with reference to Fig. 5.Fig. 5 is the A-A profile among Fig. 4.Represent as an example of the heater maintaining part 4a that forms with the single line material example among Fig. 5.As shown in Figure 5, the Breadth Maximum of the wire rod of formation heater maintaining part 4a is 404mm.The width of bending spatial portion 4a-1 is 189mm.The depth of bending spatial portion 4a-1 is 21.5mm.
The size of heater maintaining part 4b and heater maintaining part 4c then, is described with reference to Fig. 6.Fig. 6 is the B-B profile among Fig. 4.Represent as an example of the situation that forms heater maintaining part 4b and heater maintaining part 4c with the single line material example among Fig. 6.As shown in Figure 6, the Breadth Maximum of the wire rod of formation heater maintaining part 4b and heater maintaining part 4c is 401mm.The width of protuberance 4b-1 is 205mm.The depth of protuberance 4b-1 is 13mm.In addition, the width of heater maintaining part 4c is 34mm, and depth is 35mm.
The size of heater maintaining part 4d then, is described with reference to Fig. 7.Fig. 7 is the C-C profile among Fig. 4.Represent as an example of the heater maintaining part 4d that forms with the single line material example among Fig. 7.As shown in Figure 7, the Breadth Maximum of the wire rod of formation heater maintaining part 4d is 401mm.The depth that forms the wire rod of heater maintaining part 4d is 42mm.
The size of heater maintaining part 4e then, is described with reference to Fig. 8.Fig. 8 is the D-D profile among Fig. 4.Represent as an example of the heater maintaining part 4e that forms with the single line material example among Fig. 8.As shown in Figure 8, the Breadth Maximum of the wire rod of formation heater maintaining part 4e is 300mm.The depth that forms the wire rod of heater maintaining part 4e is 21mm.
The interval of heater maintaining part 4a～4d then, is described with reference to Fig. 9.Fig. 9 is the E-E profile among Fig. 4.As shown in Figure 9, the interval of heater maintaining part 4a and heater maintaining part 4b and heater maintaining part 4c is 85mm.The interval of heater maintaining part 4b and heater maintaining part 4c and heater maintaining part 4d is 110mm.The interval of heater maintaining part 4d and heater maintaining part 4e is 85mm.
The shape of heater maintaining part 4c then, is described with reference to Figure 10.Figure 10 is the enlarged drawing of the F part among Fig. 6.As shown in figure 10, heater maintaining part 4c bends to roughly that the S font forms to the both ends of the wire rod of formation heater maintaining part 4b.The 4th line part 44 of fan guard heater 4 is hooked in the spatial portion of the end side of heater maintaining part 4c.
The shape of heater maintaining part 4e then, is described with reference to Figure 11.Figure 11 is the enlarged drawing of the G part among Fig. 9.As shown in figure 11, heater maintaining part 4e bends to roughly that the S font forms to the both ends of the wire rod that forms this heater maintaining part 4e.The first line part 41 of fan guard heater 4 is hooked in the spatial portion of the lower side of heater maintaining part 4e.
The shape of heater maintaining part 4a then, is described with reference to Figure 12.Figure 12 is the enlarged drawing of the H part among Fig. 4.As shown in figure 12, heater maintaining part 4a is bent in the precalculated position, and direction is extended obliquely.Then, be acute angle-shaped bending in the precalculated position, form the installation portion of installing to fan guard 2.
[the defrosting running action of unit cooler A]
Defrosting running action at this explanation unit cooler A.When the cooling object space is cooled off, fan guard heater 4 no powers.Therefore, fan guard 2 is not heated states, and the wind that blows out that is cooled off by evaporimeter is blown on this fan guard 2.When this state continuance is long-time, on the fin (not shown) of evaporimeter, fan guard 2, just adhere to a large amount of frosts.For this reason, usually will implement every 4～6 hours once the to defrost situation of running is in the majority.
Unit cooler A is configured in for example magnetic valve (not shown) obturation of liquid pipe arrangement from the discharging refrigerant of compressor when moving to the defrosting running from common cooling running, stop to evaporimeter the supply system cryogen, and machine simultaneously turns off the blast.Unit cooler A is after air blast stops, and beginning is to 4 energisings of fan guard heater.Fan guard heater 4 generates heat by beginning energising, utilizes this heat will be attached to the frost on the fin of evaporimeter and the frost that is attached on the fan guard 2 melts.In addition, be attached to frost on the evaporimeter by the not shown heater melts that is installed on the evaporimeter.
Unit cooler before is via sheet metal the heat of heater to be passed to fan guard, and this moment can not be directly with the fan guard heating, in order more effectively the fan guard heating to be required further improvement.In addition, if the grid interval (spacing) of imagining fan guard reduces, then for the frost that will be attached on the fan guard melts fully, needing very large heat, so, the grid interval of fan guard can only be strengthened.Therefore, operator's finger, the keeping thing of keeping in the storehouse etc. enter in the body box from fan guard easily.
And with it relatively, in the situation of unit cooler A of the present invention, owing to be provided with the first line part 41 of fan guard heater 4 in the bottom of fan guard 2, so, can effectively the frost that is attached to fan guard 2 bottoms be melted.Especially, fan guard heater 4 not only can utilize radiation that frost is melted in fan guard 2 heating, ambient air heating and the frost that utilizes flowing of this air will be attached to top can also be melted.Therefore, among the unit cooler A, by linearly dispose the part of fan guard heater 4 in the bottom of fan guard 2, can not only will be attached to the frost of fan guard 2 bottoms melt, can also utilize the frost that will be attached to fan guard 2 tops by fan guard heater 4 warmed-up air also to melt.Therefore, according to unit cooler A, can be effectively whole frost of fan guard 2 be melted.
In addition, unit cooler A, because fan guard heater 4 is installed on the fan guard 2, so, can frost be melted with less energy.Therefore, cooler A in unit has good energy saving.In addition, by fan guard heater 4 is installed on the fan guard 2, can frost be melted enough less energy.Therefore, the grid interval of fan guard 2 can be reduced, so that operator's finger etc. are not easy to enter in the body box 100 from fan guard 2.Therefore, according to unit cooler A, has higher security.
In cooling running, not only can adhere to frost on the fan guard 2, on the central hub portion of the fan 6 of air blast, fan 6, also usually can adhere to frost.If be attached at frost and continue the cooling running under the state on the fan 6, then the weight of fan 6 becomes uneven, and rotation becomes unstable.If the rotation of fan 6 becomes unstable, then may produce unusual sound from fan 6.When amount of unbalance had further increased, surpassed the strength degree of blade part, fan 6 may produce damage.When this situation has occured when, also may be influential to the commodity of keeping in the cooling object space.In addition, not only fan 6 damages also may cause making the motor of fan 6 rotations, the framework damage of supporting motor.Therefore, the frost that is attached on the fan 6 also must be removed.
For this reason, the both ends that fan guard heater 4 has the first line part 41 bend acutangulate the first kink 51, make an end of the second line part 42 be positioned at the top of the central hub portion of fan 6, form the second kink 52 here.Therefore, fan guard heater 4 surrounds at least a portion around the central hub portion of fans 6, can be to whole fan 6 heating of the central hub portion that comprises fan 6.Like this, can effectively remove the frost that is attached on the fan 6.
In addition, even when adopting resinous fan 6, because heater maintaining part 4a～4e is formed on the fan guard 2, so, can suitably keep the distance between fan guard heater 4 and the fan 6.Therefore, cooler A in unit can significantly reduce because adhering to frost on the damage of fan 6, thereupon on the impact of product.
In addition, the distribution 61 that is connected with fan guard heater 4 is drawn from the below of fan guard 2, is taken in the control box 15 by mouth via the distribution that is formed on the fan cover 1.That is, connecting connector 5 at the position of drawing below the fan guard 2 of distribution 61, this connector 5 is taken in the control box 15 by mouth via distribution, is connected with distribution from control box 15 sides in control box 15.
[erection sequence of fan guard heater 4]
Figure 13 and Figure 14 are the key diagrams of the erection sequence of explanation fan guard heater 4.With reference to Figure 13 and Figure 14, illustrate fan guard heater 4 is installed to erection sequence on the fan guard 2.Blacking arrow shown in Figure 14 represents the direction that applies of power.
Before, in the installation of fan guard heater, for fan guard heater and fan guard are fixed, mostly adopt and utilize sheet metal etc. to carry out the fixing method of screw, adopt the method for same sheet metal rivet clasp etc.But these methods all need other part beyond the fan guard, and workability haves much room for improvement.In addition, in the replacing operation of fan guard heater, when situation of rivet clasp etc., can not take fan guard and fan guard heater apart.So, fan guard and fan guard heater must be changed together, cause very large loss.And with it relatively, in unit cooler A, as described later, can increase substantially the required workability of loading and unloading fan guard heater 4.
As mentioned above, heater maintaining part 4a～4e is installed on the fan guard 2.Because heater maintaining part 4a～4e is not identical apart from the distance of fan 6, so under fan guard heater 4 was installed in state on the fan guard 2, fan guard heater 4 was acclive.That is, under fan guard heater 4 was installed in state on the fan guard 2, the bottom of fan guard heater 4 was close to fan 6, and top is away from fan 6.
When being installed on the fan guard 2, prepare first fan guard 2 and fan guard heater 4(Figure 13 (a) to fan guard heater 4).In Figure 13 (a), only show fan guard 2.Then, between the bending spatial portion 4a-1 and fan guard 2 of the top of fan guard heater 4 insertion heater maintaining part 4a (Figure 13 (b), Figure 14 (1)).Then, Yi Bian regulate the position of fan guard 2 and fan guard heater 4, Yi Bian with heater maintaining part 4e the first line part 41 of fan guard heater 4 is fixed (Figure 13 (c), Figure 14 (2)).At last, hook molded 60 of fan guard heater 4 and fix (Figure 13 (d)) with heater maintaining part 4d.
With the order of these 3 steps, fan guard heater 4 can be installed on the fan guard 2.That is, can utilize the counter-force of fan guard heater 4 self, with fan guard heater 4 with respect to fan guard 2 loading and unloading.Therefore, according to unit cooler A, the installation exercise of fan guard heater 4 is very easy to.So the manufacturing of unit cooler A is also easy.In addition, fan guard heater 4 unload the order opposite with above-mentioned erection sequence.Therefore, fan guard heater 4 to unload operation also very easy.
Be installed at fan guard heater 4 under the state of fan guard 2, by heater maintaining part 4a～4e and so that fan guard heater 4 with the gradient.Like this, on fan guard heater 4, acting on towards the power (referring to blacking arrow shown in Figure 14) of the equalization of fan 6 sides and cooling object space side.Therefore, fan guard heater 4 in the container-like inside of fan guard 2, is configured in the lucky centre position of fan 6 and fan guard 2 evenly.
[other effect of unit cooler A]
Figure 15 is the simulation drawing for the air current flow in the explanation cooling object space.Other effect of unit cooler A is described with reference to Figure 15.Flowing of air-flow when Figure 15 (a) represents provided with fan protective cover heater not.Flowing of air-flow when fan guard heater 4 has been installed in Figure 15 (b) expression.
In the regular defrosting running of implementing, to the heater energising that is installed on the evaporimeter, make this heater heating, with the frost thawing of evaporimeter.In addition, freeze in order to prevent drain pan, heater also has been installed on drain pan.Be installed in heater and the temperature that is installed in the heater on the drain pan on the evaporimeter, according to situation, sometimes more than 150 degree.Therefore, melt the frost fall from evaporimeter, be installed in evaporimeter on heater, be installed in heater on the drain pan and contact and become steam.This steam is full of in the body box 100, thereby the inside of body box 100 becomes temperature, humidity becomes very high.
The air of this high temperature, high humility from body box 100 out after, contact with low-down wall of temperature etc. at Ku Nei, then dewfall on wall.When the place of setting unit cooler A is freezer, because freezing storehouse temperature very low (specifically, mostly at-20 ℃～-35 ℃), so, after the dewfall, generate ice.This phenomenon is repeatedly the time, the growth of the ice of wall, and wall becomes ice coating (state of Figure 15 (a)).Like this, not only diminish attractive in appearance in the storehouse, and ice melts again during defrosting, water may be fallen on the article of keeping in the storehouse.
And with it relatively, by fan guard heater 4 is installed on the fan guard 2, produce flowing of the such air-flow of Figure 15 (b).Therefore, fan guard heater 4 also plays the effect that the high temperature of body box 100 inside, damp atmosphere is enclosed in body box 100 inside.If high temperature, damp atmosphere do not flow out, just can not produce such situation shown in Figure 15 (a) from body box 100.Especially, at the bottom of fan guard 2 configuration fan guard heater 4, form mobile (arrow shown in Figure 15 (b)) of air from the bottom up, can obtain making the air in the body box 100 not flow out to outside gas curtain effect.
[effect of unit cooler A]
According to unit cooler A, owing to constitute first line part 41 that can be configured to be provided with in the bottom of fan guard 2 the fan guard heater, so heat in the concentrated area, bottom of the fan guard 2 that is not easy to melt in the running of can adhering to easily, defrost frost.Therefore, the frost that is attached on the fan guard can be effectively removed, the practical property of defrosting can be improved.In addition, according to unit cooler A, because fan guard heater 4 is directly installed on the fan guard 2, so, compare with indirectly fan guard being heated, not only more energy-conservation, and can defrost at short notice.
In addition, according to unit cooler A, because fan guard heater 4 is directly installed on the fan guard 2, so, can more heat transferred fan guard 2, like this, even the grid interval of fan guard 2 is reduced, also can effectively defrost.By reducing the grid interval of fan guard 2, the finger etc. that also has foreign matter, operator is difficult to enter the effect in the body box.If operator's finger etc. is not easy to enter, can also avoid contacting with fan guard heater 4, security also increases substantially.
In addition, in unit cooler A, owing to disposed fan guard heater 4 at the central portion of fan guard 2, so, also can add the central hub portion of Hot-air fan 6 and fan 6.Therefore, also can remove frost on the central hub portion that is attached to fan 6, fan 6.Therefore, can prevent from also can preventing from sending unusual sound from fan 6 because frost is attached to the imbalance running that causes on the central hub portion of fan 6, fan 6.
In addition, according to unit cooler A, the distribution 61 required to 4 energisings of fan guard heater takes out from the below of fan guard 2, so, open drain pan 3, just can unload lower connector 5 at once, can significantly cut down when safeguarding, required time and operation when making.In addition, in unit cooler A, owing to take out distribution 61 and make the connecting portion that links to each other with distribution 61 be in the top of the first line part 41 from the lower direction of fan guard 2, so, can make heat labile distribution 61 away from fan guard heater 4, thereby reliability is high.
In addition, unit cooler A by utilizing the counter-force of fan guard heater 4 self, can implement fan guard heater 4 very easily with respect to the loading and unloading of fan guard 2.Therefore, can significantly cut down when safeguarding, required time and operation when making.In addition, owing to utilize heater maintaining part 4a～4e that fan guard heater 4 is disposed obliquely, so, can regulate the configuration of fan guard heater 4, fan guard heater 4 can be configured in the position of balance.
[other shape of fan guard heater 4]
Figure 16 is the key diagram for other shape of explanation fan guard heater 4.Other shape of fan guard heater 4 is described with reference to Figure 16.Figure 16 (a)～(c) expression consists of the example of fan guard heater 4 with a heater.Figure 16 (d) expression consists of the example of fan guard heater 4 with 2 heaters.For convenience's sake, to the fan guard heater 4 of Figure 16 (a)～(d) annotated respectively the letter " A "～" D ".Correspondingly, to letter " A "～" D " that also annotated of each that consists of the fan guard heater.
Shown in Figure 16 (a), fan guard heater 4A is made of the heater that the first line part 41A, the first kink 51A, the second line part 42A, the second kink 52A, the 3rd line part 43A, the 3rd kink 53A, the 4th line part 44A are connecting.Connecting molded 60 in the bottom of the 4th line part 44A.In Figure 16 (a), represent fan guard heater 4A with thick black line.
The first line part 41A constitutes, and under fan guard heater 4A is installed in state on the fan guard 2, is installed in the bottom of fan guard 2, and the width in the inboard of fan guard 2 extends point-blank.
The first kink 51A is bent into approximate right angle to the both ends of the first line part 41A and consists of.Therefore, formed a pair of the first kink 51A at fan guard heater 4A.
The second line part 42A constitutes, and under fan guard heater 4A is installed in state on the fan guard 2, extends point-blank towards the top of fan guard 2 from the end of the first kink 51A.Therefore, formed a pair of the second line part 42A at fan guard heater 4A.Specifically, see from face side fan guard heater 4A is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, a pair of the second line part 42A forms the length of the position of the central hub portion upper end that extends to the upper end that is lower than fan 6, is higher than fan 6.
The second kink 52A is bent into acute angle to the upper end of the second line part 42A and consists of.Therefore, formed a pair of the second kink 52A at fan guard heater 4A.
The 3rd line part 43A constitutes, and under fan guard heater 4A is installed in state on the fan guard 2, extends point-blank towards the central lower side of fan guard 2 from the end of the second kink 52A.Therefore, formed a pair of the 3rd line part 43A at fan guard heater 4A.A pair of the 3rd line part 43A extends towards the central side of fan 6 close to each otherly.
The 3rd kink 53A is bent into the obtuse angle to the center side end by fan guard 2 of the 3rd line part 43A and consists of.Therefore, formed a pair of the 3rd kink 53A at fan guard heater 4A.
The 4th line part 44A constitutes, and under fan guard heater 4A is installed in state on the fan guard 2, extends point-blank towards the side, bottom of fan guard 2 from the end of the 3rd kink 53A.Therefore, on fan guard heater 4A, formed a pair of the 4th line part 44A.A pair of the 4th line part 44A extends towards the side, bottom of fan guard 2 away from each other.
As mentioned above, fan guard heater 4A, with fan guard heater 4 similarly, by 4 line parts (the first line part 41A～the 4th line part 44A) with are connected a kink (the first kink 51A～the 3rd kink 53A) and connect and consist of.Shown in Figure 16 (a), fan guard heater 4A constitutes symmetrical shape.
Shown in Figure 16 (b), fan guard heater 4B is made of the heater that the first line part 41B, the first kink 51B, the second line part 42B-1, the first bend 55-1, the 4th line part 44B-1, the second bend 56, the 4th line part 44B-2, the first bend 55-2, the second line part 42B-2 are connecting successively.In addition, the first line part 41B be connected the bottom of line part 42B-2 and connecting molded 60.In Figure 16 (b), represent fan guard heater 4B with thick black line.
The first line part 41B constitutes, and under fan guard heater 4B is installed in state on the fan guard 2, is installed in the bottom of fan guard 2, and the width in the inboard of fan guard 2 extends point-blank.
The first kink 51B is bent into approximate right angle to the end of the first line part 41B and consists of.
The second line part 42B-1 constitutes, and under fan guard heater 4B is installed in state on the fan guard 2, extends point-blank towards the top of fan guard 2 from the end of the first kink 51B.Specifically, see from face side fan guard heater 4B is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, the second line part 42B-1 forms the length of the position of the central hub portion upper end that extends to the upper end that is lower than fan 6, is higher than fan 6.
The first bend 55-1 bends to semicircle from the upper end of the second line part 42B-1 towards the top with being convex consisting of.This first bend 55-1 is also used as the second kink 52, the 3rd line part 43 and the 3rd kink 53 of fan guard heater 4.
The 4th line part 44B-1 constitutes, and under fan guard heater 4B is installed in state on the fan guard 2, extends point-blank towards the below of fan guard 2 from the end of the first bend 55-1.Specifically, from face side see fan guard heater 4B is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, the 4th line part 44B-1 forms the length of the position that extends to the central hub portion lower end that is higher than fan 6.
The second bend 56 is the bottoms from the 4th line part 44B-1, bends to semicircle towards the below with being convex and consists of.This second bend 56 connects the 4th line part 44B-1 and the 4th line part 44B-2.In addition, the second bend 56 forms accordingly with the diameter of the central hub portion of fan 6.That is, the second bend 56 forms in the mode around the latter half of the central hub portion of encirclement fan 6.
The 4th line part 44B-2 constitutes, and under fan guard heater 4B is installed in state on the fan guard 2, extends point-blank towards the top of fan guard 2 from an end of the second bend 56.Specifically, see from face side fan guard heater 4B is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, the 4th line part 44B-2 forms the length of the central hub portion upper end position that extends to the upper end that is lower than fan 6 from the position of the central hub portion lower end that is higher than fan 6, is higher than fan 6.The 4th line part 44B-2 and the 4th line part 44B-1 form a pair of.
The first bend 55-2 bends to semicircle from the upper end of the 4th line part 44B-2 towards the top with being convex consisting of.This first bend 55-2 is also used as the second kink 52, the 3rd line part 43 and the 3rd kink 53 of fan guard heater 4.In addition, the first bend 55-2 and the first bend 55-1 form a pair of.
The second line part 42B-2 constitutes, and under fan guard heater 4B is installed in state on the fan guard 2, extends point-blank towards the below of fan guard 2 from the end of the first bend 55-2.Specifically, see from face side fan guard heater 4B is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, the position of the central hub portion upper end that the second line part 42B-2 forms from the upper end that is lower than fan 6, be higher than fan 6 extends to the length of the position of the first line part 41B.The second line part 42B-2 forms a pair of with the second line part 42B-1.
As mentioned above, fan guard heater 4B is connected and composed by the first line part 41B, the first kink 51B, the second line part 42B-1, the first bend 55-1, the 4th line part 44B-1, the second bend 56, the 4th line part 44B-2, the first bend 55-2, the second line part 42B-2.Shown in Figure 16 (b), fan guard heater 4B is symmetrical shape roughly.
In fan guard heater 4B, the first bend 55-1 and the first bend 55-2 form a pair of, are also used as the second kink 52, the 3rd line part 43 and the 3rd kink 53 of fan guard heater 4.In addition, a pair of the 4th line part 44B-1 is being connected by the second bend 56 with the 4th line part 44B-2.In addition, the second line part 42B-1 and the second line part 42B-2 also form a pair of.Except the first line part 41B, the first kink 51B and the second bend 56 also only form one.
This means where the shape of fan guard heater changes according to the heater end that connects distribution 61 is arranged on.In Fig. 2 and Figure 16 (a), owing to be that distribution 61 is drawn from the below of the left and right sides both end sides of fan guard 2, so except the first line part, all the other have all formed a pair of.In Figure 16 (b), owing to be that distribution 61 is drawn from the below of an end side of fan guard 2, so, the first line part not only, the first kink also only forms one.
In addition, shown in Figure 16 (b), the extraction location that makes distribution 61 near the time, can be with in consistent manner bending around the central hub portion of the part of fan guard heater and fan 6.For this reason, in fan guard heater 4B, formed the second bend 56, the 4th line part 44B-1 has been connected with the 4th line part 44B-2.
Shown in Figure 16 (c), fan guard heater 4C is by the first line part 41C, the first kink 51C, the second line part 42C, the second kink 52C, the 3rd line part 43C, the 3rd kink 53C(the 3rd kink 53C-1,53C-2), heater connecting of the 4th line part 44C consists of.Connecting molded 60 in the bottom of the 4th line part 44C.In Figure 16 (c), represent fan guard heater 4C with thick black line.
The first line part 41C constitutes, and under fan guard heater 4C is installed in state on the fan guard 2, is installed in the bottom of fan guard 2, and the width in the inboard of fan guard 2 extends point-blank.
The first kink 51C is bent into approximate right angle to the both ends of the first line part 41C and consists of.Therefore, formed a pair of the first kink 51C at fan guard heater 4C.
The second line part 42C constitutes, and under fan guard heater 4C is installed in state on the fan guard 2, extends point-blank towards the top of fan guard 2 from the end of the first kink 51C.Therefore, formed a pair of the second line part 42C at fan guard heater 4C.Specifically, see from face side fan guard heater 4C is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, a pair of the second line part 42C forms the length of the position of the central hub portion upper end that extends to the upper end that is lower than fan 6, is higher than fan 6.
The second kink 52C is bent into acute angle to the upper end of the second line part 42C and consists of.Therefore, formed a pair of the second kink 52C at fan guard heater 4C.
The 3rd line part 43C constitutes, and under fan guard heater 4C is installed in state on the fan guard 2, extends point-blank towards the central lower side of fan guard 2 from the end of the second kink 52C.Therefore, formed a pair of the 3rd line part 43C at fan guard heater 4C.A pair of the 3rd line part 43C extends towards the central side of fan 6 close to each otherly.
The 3rd kink 53C be the 3rd line part 43C by the bending of the center side end of fan guard 2 and consist of.Therefore, formed a pair of the 3rd kink 53C at fan guard heater 4C.The bending angle of one of them the 3rd kink 53C-1 is approximate right angle.The bending angle of another the 3rd kink 53C-2 is the obtuse angle.
The 4th line part 44C constitutes, and under fan guard heater 4C is installed in state on the fan guard 2, extends point-blank towards the side, bottom of fan guard 2 from the end of the 3rd kink 53C.Therefore, formed a pair of the 4th line part 44C at fan guard heater 4C.A pair of the 4th line part 44C by the bending angle of the 3rd kink 53C, extends towards the side, bottom of fan guard 2 in parallel to each other.
As mentioned above, fan guard heater 4C, with fan guard heater 4A similarly, by 4 line parts (the first line part 41C～the 4th line part 44C) with are connected a kink (the first kink 51C～the 3rd kink 53C) and connect and consist of.But, owing to the below that the extraction location of distribution 61 is located at an end side of fan guard 2, so by the bending angle of the 3rd kink 53C, a pair of the 4th line part 44C extends abreast.In the example shown in Figure 16 (c), the modified example when expression is drawn distribution 61 from the below of an end side of fan guard 2.
Shown in Figure 16 (d), fan guard heater 4D is made of primary heater 4D-1 and such two heaters of secondary heater 4D-2.Primary heater 4D-1 is formed by connecting by the first line part 41D, the first kink 51D, the second line part 42D.Secondary heater 4D-2 is formed by connecting by the 5th line part 45D-1, the 3rd bend 57, the 5th line part 45D-2.In addition, in the upper end of the second line part 42D, the end of the 5th line part 45D-1, the end of the 5th line part 45D-2, connecting molded 60.In Figure 16 (d), represent fan guard heater 4D with thick black line.
The first line part 41D constitutes, and under fan guard heater 4D is installed in state on the fan guard 2, is installed in the bottom of fan guard 2, and the width in the inboard of fan guard 2 extends point-blank.
The first kink 51D is bent into approximate right angle to the both ends of the first line part 41D and consists of.Therefore, formed a pair of the first kink 51D at fan guard heater 4D.
The second line part 42D constitutes, and under fan guard heater 4D is installed in state on the fan guard 2, extends point-blank towards the top of fan guard 2 from the end of the first kink 51D.Therefore, formed a pair of the second line part 42D at fan guard heater 4D.Specifically, see from face side fan guard heater 4D is installed on the fan guard 2, when fan guard 2 is installed in state on the body box 100, a pair of the second line part 42D forms the length of the position of the central hub portion upper end that extends to the upper end that is lower than fan 6, is higher than fan 6.Connecting distribution 61 in the upper end of the second line part 42D.
As mentioned above, primary heater 4D-1 is made of the first line part 41D, the first kink 51D, the second line part 42D.
The 5th line part 45D-1 constitutes, and under fan guard heater 4D is installed in state on the fan guard 2, extends point-blank towards the center side along continuous straight runs from the position, side of fan guard 2.
The 5th line part 45D-2 also constitutes, and under fan guard heater 4D is installed in state on the fan guard 2, extends point-blank towards the center side along continuous straight runs from the position, side of fan guard 2.The 5th line part 45D-1 and the 5th line part 45D-2 form a pair of, extend abreast.
The 3rd bend 57 constitutes, with the central hub portion of surrounding fan 6 from the end (paper left end) of the 5th line part 45D-1 roughly complete cycle ground continuously to the mode bending of the end (paper left end) of the 5th line part 45D-2.
As mentioned above, secondary heater 4D-2 is made of the 5th line part 45D-1, the 3rd bend 57, the 5th line part 45D-2.
As mentioned above, fan guard heater 4D is made of primary heater 4D-1 and such two heaters of secondary heater 4D-2, and primary heater 4D-1 is not connected with secondary heater 4D-2 and is connected.That is, consider that from installation exercise, expense aspect the fan guard heater preferably is made of 1 heater.But shown in Figure 16 (d), do not get rid of with many heaters formation fan guard heaters yet.
As mentioned above, the fan guard heater, as long as the first line part is arranged and be the shape that can surround the part around the central hub portion of fan 6 and fan 6, the shape of fan guard heater, consisting of radical can be according to suitably decisions such as the purposes of unit cooler A, power, size, shapes.In addition, keep the shape of the heater maintaining part 4a～4e of fan guard heater also can to change according to the shape of fan guard heater, but the distance relation of heater maintaining part 4a～4e and fan 6 as mentioned above.In addition, the relation that acts on the power on the fan guard heater by heater maintaining part 4a～4e also as mentioned above.
Claims (12)
1. freezing/cooling device is characterized in that, this freezing/cooling device has body box, fan guard and fan guard heater; The air blast of in above-mentioned body box, accommodating evaporimeter and this evaporimeter being ventilated, the front side wall of body box is made of the fan cover with blow-off outlet corresponding with above-mentioned air blast; The said fans protective cover combines many wire rods, is installed on the said fans lid in the mode in the place ahead of covering above-mentioned blow-off outlet; Said fans protective cover heater is arranged at the above-mentioned blow-off outlet side of said fans protective cover;
Above-mentioned air blast has fan and as the central hub portion of the base portion of this fan;
Line part or bend that said fans protective cover heater has the first line part and forms in the mode of at least a portion around the central hub portion of the fan that surrounds above-mentioned air blast; Width along the said fans protective cover extends above-mentioned the first line part point-blank in the bottom of said fans protective cover.
As claimed in claim 1 freezing/cooling device, it is characterized in that, be provided with a plurality of heater keepers for keeping said fans protective cover heater at the said fans protective cover; Above-mentioned heater keeper tilts said fans protective cover heater so that said fans protective cover heater more towards the top more away from above-mentioned air blast.
As claimed in claim 1 or 2 freezing/cooling device, it is characterized in that said fans protective cover heater has the both ends of above-mentioned the first line part are bent acutangulate the first kink towards the central portion of above-mentioned fan guard.
As claimed in claim 3 freezing/cooling device, it is characterized in that said fans protective cover heater has from above-mentioned the first kink and extends the second line part that arranges and extend in the mode of a part around the central hub portion of the fan that surrounds above-mentioned air blast.
As claimed in claim 1 or 2 freezing/cooling device, it is characterized in that, said fans protective cover heater,
Has the first kink that the both ends of above-mentioned the first line part is bent into approximate right angle towards the top, side of said fans protective cover;
Have from above-mentioned the first kink and extend the second line part that arranges and extend point-blank to the top of above-mentioned fan guard;
The upper end that has above-mentioned the second line part bends acutangulate the second kink towards the central portion of said fans protective cover.
As claimed in claim 5 freezing/cooling device, it is characterized in that said fans protective cover heater has from above-mentioned the second kink and extends the 3rd line part that arranges and extend in the mode of a part around the central hub portion of the fan that surrounds above-mentioned air blast.
As claimed in claim 1 or 2 freezing/cooling device, it is characterized in that, said fans protective cover heater,
Has the first kink that an end of above-mentioned the first line part is bent into approximate right angle towards the top, side of said fans protective cover;
Have from above-mentioned the first kink and extend the second line part that arranges and extend point-blank to the top of above-mentioned fan guard;
Have and be convex towards the top from the upper end of above-mentioned the second line part and to the first bend of the central portion bending of above-mentioned fan guard.
As claimed in claim 7 freezing/cooling device, it is characterized in that, said fans protective cover heater,
Have from above-mentioned the first bend and extend the 4th line part that arranges and extend in the mode of a part around the central hub portion of the fan that surrounds above-mentioned air blast;
Have in order to be the second bend that the mode of convex bends towards the below with the end from above-mentioned the 4th line part around the central hub portion below of the fan that surrounds above-mentioned air blast;
Have with above-mentioned the 4th line part in pairs, extend the 4th line part that arranges and extend in the mode of the part around the central hub portion of the fan that surrounds above-mentioned air blast from above-mentioned the second bend.
As claimed in claim 1 or 2 freezing/cooling device, it is characterized in that said fans protective cover heater is made of primary heater and secondary heater;
Above-mentioned primary heater has the second line part that arranges and extend point-blank to the top of above-mentioned fan guard is extended in an end of above-mentioned the first line part towards the first kink of the top, side of said fans protective cover approximate right angle ground bending with from above-mentioned the first kink;
Above-mentioned secondary heater has the 3rd bend of roughly complete cycle of the central hub portion of the fan that surrounds above-mentioned air blast.
As claimed in claim 1 freezing/cooling device, it is characterized in that the end that connects the said fans protective cover heater of distribution is positioned at the below of said fans protective cover.
11. as claimed in claim 9 freezing/cooling device, it is characterized in that,
The end that connects the above-mentioned primary heater of distribution is positioned at the top of said fans protective cover;
The end that connects the above-mentioned secondary heater of distribution is positioned at the side of said fans protective cover.
12. as claimed in claim 1 freezing/cooling device, it is characterized in that said fans protective cover heater is configured to distribution connecting portion and above-mentioned the first line part is provided with distance in vertical direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012078810A JP5871695B2 (en) | 2012-03-30 | 2012-03-30 | Refrigeration / cooling device |
| JP2012-078810 | 2012-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363760A true CN103363760A (en) | 2013-10-23 |
| CN103363760B CN103363760B (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210365625.9A Active CN103363760B (en) | 2012-03-30 | 2012-09-27 | freezing/cooling device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5871695B2 (en) |
| CN (1) | CN103363760B (en) |
| HK (1) | HK1189935A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715495A (en) * | 2019-10-25 | 2020-01-21 | 大连海事大学 | High-pressure friction nano power generation defrosting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024034A (en) * | 2017-03-23 | 2017-08-08 | 北京国科天创建筑设计院有限责任公司 | A kind of net for air-source heat pump units for cold district |
| JPWO2022230127A1 (en) * | 2021-04-28 | 2022-11-03 |
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| JPS5238753U (en) * | 1975-09-12 | 1977-03-18 | ||
| JPS53140105U (en) * | 1977-04-12 | 1978-11-06 | ||
| JPS5810953Y2 (en) * | 1977-07-14 | 1983-02-28 | 三洋電機株式会社 | Refrigeration equipment |
| JPS5981478A (en) * | 1982-10-29 | 1984-05-11 | 三洋電機株式会社 | Refrigerator |
| JPH0327275Y2 (en) * | 1986-11-28 | 1991-06-12 | ||
| JPH087316Y2 (en) * | 1991-12-06 | 1996-03-04 | ダイキン工業株式会社 | Freezers |
| JP4502930B2 (en) * | 2005-10-21 | 2010-07-14 | 三洋電機株式会社 | Low temperature showcase defroster |
-
2012
- 2012-03-30 JP JP2012078810A patent/JP5871695B2/en active Active
- 2012-09-27 CN CN201210365625.9A patent/CN103363760B/en active Active
-
2014
- 2014-03-31 HK HK14103082.7A patent/HK1189935A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53146351A (en) * | 1977-05-26 | 1978-12-20 | Sanyo Electric Co Ltd | Cooling device |
| JPH037874A (en) * | 1989-06-02 | 1991-01-16 | Sanyo Electric Co Ltd | Freezing device |
| JP2001027472A (en) * | 1999-07-14 | 2001-01-30 | Sanyo Electric Co Ltd | Cooling device |
| JP2001082858A (en) * | 1999-09-07 | 2001-03-30 | Mitsubishi Heavy Ind Ltd | Evaporator unit for refrigerating device for land transportation |
| JP2003240416A (en) * | 2002-02-15 | 2003-08-27 | Mitsubishi Electric Corp | Cooler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715495A (en) * | 2019-10-25 | 2020-01-21 | 大连海事大学 | High-pressure friction nano power generation defrosting device |
| CN110715495B (en) * | 2019-10-25 | 2021-03-19 | 大连海事大学 | High-pressure friction nano power generation defrosting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103363760B (en) | 2015-10-14 |
| JP5871695B2 (en) | 2016-03-01 |
| HK1189935A1 (en) | 2014-06-20 |
| JP2013210111A (en) | 2013-10-10 |
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