CN2358413Y

CN2358413Y - High efficiency defroster

Info

Publication number: CN2358413Y
Application number: CN 98248197
Authority: CN
Inventors: 薛博仰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-18
Filing date: 1998-11-18
Publication date: 2000-01-12
Anticipated expiration: 2008-11-18

Abstract

The utility model relates to a high efficiency defroster in a refrigeration system, which comprises a plurality of electric heating pipes and a plurality of heat transfer fins arranged on the electric heating pipes, wherein, each heat transfer fin has a sheet body and an embedding part which is arranged at one side of the sheet body, and the embedding part is provided with a locating slot for embedding the electric heating pipes, causing the electric heating pipes to be embedded and positioned in an evaporator from outer side to inner side. The heat transfer fins arranged on the electric heating pipes are extended between radiation fins of the evaporator, causing the heat of the electric heating pipes to be guided to the evaporator rapidity through the heat transfer fins, and defrosting job is carried out between the radiation fins from the inner side to the outer side.

Description

The high efficiency defroster

The utility model relates to a kind of defroster that is used for refrigeration system.

In the refrigeration system of showcase, because the fin in the evaporimeter often is in low-temperature condition, so that contained moisture content can be condensed in the fin surface and form frost in the air by the fin surface, when forming frost with Hou, the heat that will become evaporimeter passes barrier layer, cause the heat of evaporimeter to pass effect decline, therefore, must in evaporimeter, install defroster additional the frost on fin surface is removed for keeping the good heat transfer property energy of evaporimeter.The Defrost mode of normal use included electric defrosting, water defrosting and the defrosting of hot refrigerant vapor in the past.As Fig. 1 and shown in Figure 2, be respectively the Assembly Action decomposing schematic representation of electric-heating defrosting device in the past, and the scheme of installation of electric-heating defrosting device in the past.Electric-heating defrosting device 11 comprised most U type electrothermal tubes 111 in the past, and the two end plates 12 of this evaporimeter 1, and offer caulking groove 121 and the groove 131 that the heat pipe 111 of can powering is embedded respectively on fin 13 lateral margins of 12 of this two end plates, in the past on electric-heating defrosting device 11 caulking groove 121 that utilizes electrothermal tube 111 ecto-entads to set to be positioned evaporimeter 1 and the groove 131, motor 14 in the mat evaporimeter 1 drives flabellum 141 rotations and produces air flow, and the heat in the reefer space can be taken away the refrigerants in the pipe row 132 who is arranged in the fin 13 of evaporimeter 1, the action that defrosts of the electrothermal tube 11 of the control of the timing controller in the refrigeration system simultaneously, the great advantage of electric-heating defrosting device 11 was that electrothermal tube 11 is adopted outer add mode and is arranged in the evaporimeter 1 in the past, therefore when installing or dismounting electrothermal tube 11, can not influence the original pipeline of refrigeration system, because electrothermal tube 11 is placed through the surface of fin 13, therefore not tight with contacting of fin 13, so that heat can't be conducted to rapidly on the fin 13, and then cause heat partly to be dispersed in the reefer space, cause defrosting effect bad, when the storehouse temperature rises, refrigerate the decline that thing also can cause quality because of variations in temperature.And the water defrosting mode is with water or non freezing solution spray fin surface, the defrosting effect of this kind Defrost mode is good, and have more the function of cleaning fin, but when using non freezing solution, this non freezing solution need carry out reproduction operation, to avoid the non freezing solution concentration dilution, cause the freezing frosting phenomenon on fin surface and make defrosting effect descend.Yet because the reproduction operation of this non freezing solution need cooperate relevant device, so the use cost raising, and, also can influence the effect of defrosting if this reproduction operation is not thoroughly finished.

In the disappearance of defrosting in the operation, thereby develop a kind of electric-heating defrosting device of modified form at above-mentioned electric-heating defrosting device in the past 11.As shown in Figure 3 and Figure 4, be respectively the Assembly Action decomposing schematic representation of modified form electric heating defroster in the past, and the scheme of installation of modified form electric heating defroster in the past, this kind modified form electric heating defroster 21 in the past comprises most U type

electrothermal tubes

211, and 212 of two straight tubes of each electrothermal tube 211 are provided with a heat transfer fin 213, offer most osculums 214 on this heat transfer fin 213, and the two end plates 22 of this evaporimeter 2, and offer the perforate 221 that the heat pipe 211 of can powering places on the fin 23 of 22 of this two end plates respectively and bore a hole 231, this perforate 221 is connected to form a passage with perforation 231, therefore the electrothermal tube 211 of modified form electric heating defroster 21 promptly is to place to be positioned in this passage in the past, when the defrosting operation, the heat of electrothermal tube 211 can promptly send from these fin 23 centers via heat transfer fin 213, come with mode transmission from inside to outside, than electric-heating defrosting device raising defrosting efficiency in the past, because defrosting electric heating is the inside that is positioned at fin 23, heat is difficult for being distributed in the reefer space, can avoid the storehouse temperature to improve, guarantee to refrigerate the quality of thing.

Modified form electric heating defroster 21 still had following disappearance in practicality in the past:

1. take a lot of work during manufacturing expenses: the heat transfer fin 213 on the electrothermal tube 211 of modified form electric heating defroster 21 must utilize the oil pressure mode to be combined into one with electrothermal tube 211 when making in the past, therefore more complicated on processing and fabrication schedule.

2. manufacturing cost height: the heat transfer fin 213 of modified form electric heating defroster 21 needed other could be combined into one with electrothermal tube 211 in the oil pressure mode by mat one oil pressure unit in the past, quite time-consuming taking a lot of work on the fabrication schedule, so that manufacturing cost height.

3. inconvenient maintenance: as shown in Figure 5, it is the schematic diagram in freezer, changed of modified form defroster in the past, because general evaporimeter 2 is in the freezer 3 that is installed on as dotted line among the figure, when if evaporimeter 2 is installed on freezer 3, about the installing space deficiency reserved, when in case electrothermal tube 211 faults must be changed, if this electrothermal tube 211 is not extracted out fully, it extracts the internal face that end can collide freezer 3 out, and electrothermal tube 211 can't be extracted out, cause in the past the defroster 21 can't repair and replacement, therefore for the narrow and small freezer 3 in inner space, defroster 21 can't use in the past.

The purpose of this utility model provides a kind of at what and can reach the high efficiency defroster of being convenient to make and maintenance easy accessibility high with defrosting efficiency really.

High efficiency defroster of the present utility model comprises most electrothermal tubes, and most the heat transfer fins of being located on this electrothermal tube; It is characterized in that: each heat transfer fin has a lamellar body, and a fitting portion of being located at this lamellar body one side, and this fitting portion also is provided with a locating slot, and this electrothermal tube is embedded at this locating slot.

Described high efficiency defroster is characterized in that: each electrothermal tube has two parallel juxtaposed bodys.

Described high efficiency defroster is characterized in that: the cross section of this heat transfer fin lamellar body is cone-shaped.

High efficiency defroster of the present utility model in make with practicality on had effect really more in the past and promoted part, describe in detail as the back: 1. make simple, save material:

Because heat transfer fin of the present utility model is to be formed by the monoblock material system of taking out, therefore processing fast, and can save material, utilize the elasticity of material itself by heat transfer fin and electrothermal tube, chimeric mutually with the close-fitting design, not only install simple and make and save time, the heat transfer fin more removable next with using again, do not scrap, reach the effect that material resources utilizes again because of the electrothermal tube fault.2. defrosting efficiency height:

The utility model is by the heat transfer fin that all is embedded with on each electrothermal tube between the radiating fin that can stretch into evaporimeter, after the embedding of mat electrothermal tube ecto-entad is positioned an evaporimeter inside, the heat that this electrothermal tube sent can be via the heat transfer fin evaporimeter inside of leading rapidly, with increase defrosting area, and then improve defrosting efficiency.Because this defrosting operation is by carrying out from inside to outside between the evaporimeter inner heat fins, so the heat that electrothermal tube sent is used for defrosting entirely, is difficult for having heat to be dispersed into reefer space, causes the quality of storehouse temperature rising destruction refrigerated item.3. easy-to-use:

Because the outer formula of the utility model utilization is installed on the evaporimeter, therefore when electrothermal tube breaks down, can be easily by the gas channel space of former reservation, electric heater is outwards pulled out replacing, not can because of the width of freezer is not enough can't dismounting, so the utility model on installing and using more in the past the modified form defroster have more easy-to-use effect.4. prolong the service life of electrothermal tube:

The utility model is by additional heat transfer fin on the electrothermal tube, and makes the heat on the electrothermal tube can be delivered to whole removing on the frosting rapidly, so heat can not accumulate on the electrothermal tube, avoids Yin Gaowen and reduces service life of electrothermal tube.

In sum, high efficiency defroster of the present utility model have really make simple, save material, defrosting efficiency height, the easy-to-use and multi-efficiencies such as service life that can prolong electrothermal tube.

Below by Cui embodiment and accompanying drawing footwear die device of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the Assembly Action decomposing schematic representation of electric-heating defrosting device in the past.

Fig. 2 is the scheme of installation of electric-heating defrosting device in the past.

Fig. 3 is the Assembly Action decomposing schematic representation of modified form electric heating defroster in the past.

Fig. 4 is the scheme of installation of modified form electric heating defroster in the past.

Fig. 5 is the schematic diagram changed in freezer of modified form defroster in the past.

Fig. 6 is the defroster perspective exploded view of the utility model one than Cui embodiment.

Fig. 7 is the defroster Assembly Action decomposing schematic representation of the utility model one than Cui embodiment.

Fig. 8 is the scheme of installation of the utility model one than Cui embodiment.

As shown in Figure 6, be the defroster perspective exploded view of the utility model one than Cui embodiment, the defroster 4 of present embodiment includes most electrothermal tubes 41 (only demonstrating among the figure), and most heat transfer fin 42 members of being located on these electrothermal tubes 41 such as (only demonstrating two among the figure).Wherein each electrothermal tube 41 is to have two parallel juxtaposed bodys 411, and fin 42 utilization of respectively conducting heat is taken out system mode one and is drawn and be pumped into shape one lamellar body 421, an and fitting portion 422 that is formed at these lamellar body 421 1 sides, the thickness of this lamellar body 421 be from the junction of fitting portion 422 to the attenuation gradually of its respective side, make the cross section of this lamellar body 421 form cone-shaped aspect, this fitting portion 422 also is formed with the locating slot 423 that can set for the body 411 of this electrothermal tube 41.

Please cooperate Fig. 7 and shown in Figure 8 simultaneously, be respectively the defroster Assembly Action decomposing schematic representation of the utility model one than Cui embodiment, and the utility model one is than the scheme of installation of Cui embodiment, the defroster 4 of present embodiment is when assembling, the elasticity that only need utilize material itself in the tight fit mode with on the chimeric body 411 that is positioned electrothermal tube 41 of the fitting portion 422 of heat transfer fin 42, heat transfer fin 42 and electrothermal tube 41 are combined closely be integral, and finish assembling operation; The two end plates 51 same lateral margins of this evaporimeter 5 of defroster 4 offer a groove 511, and be formed with caulking groove 521 on the individual fin 52 corresponding same lateral margins of the majority that is arranged at 51 of these end plates, when therefore the defroster 4 of present embodiment is installed on evaporimeter 5, shown in arrow among Fig. 7, set in the caulking groove 521 that is positioned fin 52 lateral margins with the groove 511 of ecto-entad mode on the end plate 51 of evaporimeter 5, lamellar body 421 on the heat transfer fin 42 of this defroster 4 of mat can be stretched 52 of fins that place evaporimeter 5, the heat major part sent of electrothermal tube 41 of this defroster 4 can be via heat transfer fin 42 52 of the fins of guiding evaporimeters 5 rapidly in when defrosting, so that sending most heats, electrothermal tube 41 can be used to defrosting, so can effectively improve defrosting efficiency, the heat that is distributed to simultaneously in the reefer space significantly reduces, make the storehouse temperature be not easy to raise in the defrost process, and guarantee the storage quality of refrigerated item.

As Fig. 7 and shown in Figure 8, because the general the most serious place of evaporimeter 5 frosting faces is when air just enters fin 52, just so-called " return air face ", and defroster 4 of the present utility model is to adopt outside plug type to be installed on the most serious return air face place of evaporimeter 5 frosting faces, cooperate lamellar body 421 surfaces of heat transfer fin 42 to be inclined plane type simultaneously, but this inclined plane of white water mat that is produced when therefore making defrosting and getting rid of smoothly, and mat evaporimeter 5 is when being installed in the freezer (not shown), its preceding Hou must be left gas channel at return air face place, thereby when maintenance and installation, there are enough spaces easily defroster 4 to be taken out and break away from evaporimeter 5, the modified form defroster is subject to this evaporimeter left side when dismounting and improve in the past, the problem of insufficient space between right side and freezer.When electrothermal tube 41 breaks down taking-up, because this electrothermal tube 41 and 42 of heat transfer fins are chimeric mutually with tight fit, so can utilize instrument to make its separation easily, again heat transfer fin 42 is installed in and continues on the new electrothermal tube 41 to use, so more can reach the effect of saving resource and reducing use cost.

Claims

1. a high efficiency defroster comprises most electrothermal tubes, and most the heat transfer fins of being located on this electrothermal tube; It is characterized in that: each heat transfer fin has a lamellar body, and a fitting portion of being located at this lamellar body one side, and this fitting portion also is provided with a locating slot, and this electrothermal tube is embedded at this locating slot.

2. high efficiency defroster as claimed in claim 1 is characterized in that: each electrothermal tube has two parallel juxtaposed bodys.

3. described high efficiency defroster as claimed in claim 1 is characterized in that: the cross section of this heat transfer fin lamellar body is cone-shaped.