CN2231782Y - Independent refrigerator capable of constituting small frostless freezer - Google Patents

Abstract

The utility model discloses an independent refrigerator capable of constituting small frostless freezer, which is an improvement on the structural form for forming a refrigeration device of a frost freezer. The utility model is realized through adopting the structural principle of a domestic window type or split air conditioner and solving the problem of the technical structure that defrosting can not affect the temperature of the freezer. The production and the installation cost of the utility model is lower than that of the prior art, and namely, the cost of a fin evaporation apparatus is lower than that of the evaporator of a snakelike coil pipe of the same area. The quality assurance and the convenient degree of use of the utility model is higher greater than that of the prior art. The utility model is suitable for mass production of air conditioner factories. In addition, metals or frostless freezers of a brick structure which are fitted with about 5 cubic meters of the utility model is suitable for the requirements of dining rooms, middle and small restaurants and shops.

Description

Can constitute the self refrigerator of small-sized Frostless ice house

The utility model relates to and is mainly the freezing and refrigeration food service in the refrigeration technology field, and build is analogous to the integrated-type structure of a kind of small-type refrigeration appliance of domestic air conditioner.

At present, freezer is divided into two big classes according to their Ku Wen: low temperature storehouse and high temperature storehouse, the former storehouse temperature generally is lower than 0 ℃, the for example normal Ku Wen that adopts has-18 ℃ ,-12 ℃ ,-6 ℃, latter Ku Wen generally is higher than 0 ℃, for example often adopts+5 ℃ (being used for the high temperature fresh-keeping refrigeration of fresh-laid egg, fruit, vegetables etc.).The evaporating temperature of their refrigeration systems all≤0 ℃, the general structural shape of combining closely that adopts of the refrigeration plant of these freezers (mainly referring to evaporimeter) with storehouse, for example the serpentine coil evaporimeter just closely combines with the freezer inwall, the scope of application is the widest, several cubic metres of use amount maximum and tens cubic metres miniature cold storage also are that so the weak point of this common structure is:

1. the evaporimeter frosting on the freezer inwall is can hardly be avoided, and therefore, freezer is manually regularly swept frost work when operate as normal essential; and workload is bigger; and after date during one section of freezer work is shut down the defrost work of clear storehouse on a large scale and also is absolutely necessary.For this reason, the white freezer that has that the existing structure pattern of refrigeration plant causes has brought very big inconvenience to the user.

2. each component parts of the refrigeration plant of freezer is general disperses, and therefore, their location and installation, pipeline connect, quantities such as system vacuumizes, refrigerant feeding, debugging must be finished at the freezer scene.The pattern of this dispersion assembly processing will certainly increase the cost of refrigeration plant, also is unfavorable for the execution of quality assurance system, but also brings very big inconvenience for the refrigeration plant both sides of supply and demand.---also have suitable workload to wait the scene after manufacturer goes out the product pin and go to finish, the last processing mode of this field apparatus assembly is difficult to resemble domestic air conditioner that works and marries again marketing unit (shop) and go to finish; Can not come into operation after with the side product being bought at once, must work hard one the time after date.

The purpose of this utility model is to start with from the combining structure pattern of improving refrigeration plant itself with solving the problems referred to above, by allowing the Highgrade integration of miniature cold storage refrigeration plant realize its frostlessization.

Technological means of the present utility model is: the complete machine structure principle that adopts the high integrated-type that is analogous to family expenses window formula or detachable air conditioner; The technical pattern of in this complete machine structure pattern, setting up in the freezer inboard the heating defrosting device of evaporimeter and not influencing normal working temperature in the freezer during to evaporimeter heating defrost.

The utility model is to realize like this, on the basis of the refrigeration plant that has miniature cold storage now, the evaporating temperature of refrigeration system≤0 ℃, it contains condenser at least, flow controller, compressor and evaporimeter four big critical pieces, it is characterized in that: it is at least by condenser, flow controller, compressor and evaporimeter four big main parts are integrated and form a unit body formation (window type or top type) that is independent of freezer, perhaps by based on the indoor set of evaporimeter with condenser, flow controller, compressor is that the off-premises station of main body forms two the unit bodies formations (on-hook type or cabinet-type air conditioner type or furred ceiling type) that are independent of freezer respectively, it has one group of defrosting device to the evaporimeter heating at the freezer inside part, this device is made of the electroheating type heating arrangements or the pump type heat heating arrangements constitutes, casing has at least a place to be provided with the air door of just closing when evaporimeter is heated defrost in the air inlet of freezer inside part and air outlet two places, this air door can be made of monolithic door or multi-disc door, and its Push And Release is controlled by electric power or wind-force or manual.

Figure illustrated the structural shape of the high integrated-type of a kind of this equipment of similar family expenses window air conditioner, and solved defrost influences problem to temperature of ice house a embodiment of the present utility model.

Condenser [1], capillary restrictor [2], compressor [3], evaporimeter [4], air outlet [5], air inlet [6], air door [7], electroheating type defrosting device [8], blower fan [9], casing [10], freezer [11], brick wall [12], damp-proof layer [13], heat-insulation layer [14].

The air door [7] that air outlet [5] is located is made of the monolithic door, and the air door [7] that air inlet [6] is located is made of the multi-disc door, adopts the mode of wind control air door [7] Push And Release, and during start, air door [7] is all opened by wind, and during shutdown, air door [7] hangs down by gravity and closes.Air inlet [6] and air outlet [5] can be arranged above and below, also can about arrange.

The flow resistance value of capillary restrictor [2] is much larger than with the throttling resistance in the air-conditioner of power, and the evaporating temperature that causes evaporimeter [4] by it is-28 ℃ much smaller than 0 ℃.Freezer [11] is masonry structure, 10 cubic metres of volumes, about 1500 watts of compressor [3] power, whole refrigeration system adopts the full-closed structure pattern, like this, even use decades, as long as machine is not bad, just needn't consider owing to cold-producing medium leaks the problem that needs refrigerant feeding.

During freezer [11] operate as normal, compressor [3] and blower fan [9] operation, air door [7] is opened by wind, the condenser [11] of freezer [11] Outboard Sections carries out wind-cooling heat dissipating work by blower fan [9], in freezer [11] inside part, air by blower fan [9] inspiration, blows out food in the freezing freezer [11] from air outlet [5] from air inlet [6] after evaporimeter [4] refrigeration.

During timing automatic defrost, compressor [3] and wind [9] are out of service, air door [7] is closed automatically by gravity sag, be close to the electric heater energising heating that belongs to electroheating type defrosting device [8] on evaporimeter [4] fin, the white water that melts flows to the outside of freezer [11] slightly along casing [10] to freezer [11] outside inclined bottom, and osculum therefrom flows out.This moment, the hot gas when being positioned at inboard evaporimeter [4] defrost of freezer [11] was difficult to spill out the normal working temperature that influences freezer [11] because air door [7] is closed.

Pump type heat defrost mechanism will produce the most satisfied defrost effect to this integrated-type evaporator fin [4], and it only needs to increase a two-position four-way valve, and exchanging condenser [1] and evaporimeter [4] once during defrost, function gets final product; The principle of another kind of " pump type heat " defrost mechanism is to allow the high temperature refrigerant in the condenser [1] that evaporimeter [4] is carried out " defrosting ", these need they connect between the two one only the stop valve of switch get final product, this mechanism is applicable to the utility model that evaporating temperature is higher, because in the refrigeration system with power, evaporating temperature is high more, in the system cold-producing medium to fill dosage also big more, this more easily reaches the effect of defrosting.Therefore the best defrost mechanism that adopts of the utility model should be a pump type heat mechanism.Above-mentioned two kinds of mechanisms all belong to the prior art scope.

The utility model the foregoing description belongs to " window type " machine, if the utility model is placed on freezer [11] top and the monomer self embodiment that designs is exactly " top type " machine, machine is roughly the same for its structural principle and " window type ".In addition, the difference main similar in appearance to the utility model of family expenses split-type air conditioner device and family expenses split-type air conditioner device is: evaporating temperature≤0 of evaporimeter in its indoor set [4] ℃, and the excessive air door [7] of hot vapour when evaporimeter [4] had defrosting device [8] and restriction defrost.The detailed description of this type (on-hook type or cabinet-type air conditioner type or furred ceiling type) embodiment omits.

The utility model is compared with the prior art: owing to allow the refrigeration plant of small-sized cold village, often used in village names adopt the structural shape that is similar to the such device height integrated-type of domestic air conditioner, do not influence the technical pattern of the interior temperature of freezer [11] when having solved defrost simultaneously again, realized frostlessization of miniature cold storage.The both sides of supply and demand of returning refrigeration plant simultaneously provide sells and uses very big convenience.What is more important is that manufactory's whole cost of reduction device product has been created condition, and the analysis of causes is as follows:

1. the cost of producing complete machine in batches is lower than produces the site-assembled again cost of loose mail.

2. the cost (containing blower fan [9]) of fin-type evaporimeter [4] device is lower than the cost with the snake type coil pipe of disengagement area.

3. the machine product of production equipment height integrated-type can omit or reduce significantly on-the-spot artificial installation of prior art necessity, adds agent, debugs the quantities and the expense of a class.

4. the packing of machine product is simple, and accumulating is convenient, and is favourable in reducing cost.

5. production machine product, implementation quality safeguard measure easily improves the quality assurance degree of product, and this certainly will reduce the after-sale service workload, and reduces the cost of product, and this all welcomes both sides of supply and demand.

Claims (7)

1. self refrigerator that can constitute small-sized Frostless ice house, scope≤0 of its refrigeration work evaporating temperature in freezer [11] ℃, it is at least by condenser [1], flow controller [2], compressor [3] and evaporimeter [4] four big main parts constitute, it is characterized in that: it is at least by condenser [1], flow controller [2], compressor [3] and evaporimeter [4] four big main parts are that main body is integrated and forms a unit body being independent of freezer [11] and constitute, perhaps by based on the indoor set of evaporimeter [4] with condenser [1], two unit bodies that flow controller [2], compressor [3] are independent of freezer [11] for the off-premises station of main body forms respectively constitute.

2. according to the described a kind of self refrigerator that can constitute small-sized Frostless ice house of claim 1, it is characterized in that: it has one group of defrosting device [8] to evaporimeter [4] heating at freezer [11] inside part.

3. according to claim 1 and 2 described a kind of self refrigerators that can constitute small-sized Frostless ice house, it is characterized in that: described defrosting device [8] is to be made of the electroheating type heating arrangements, or is made of the pump type heat heating arrangements.

4. according to the described a kind of self refrigerator that can constitute small-sized Frostless ice house of claim 1, it is characterized in that: casing [10] in the air inlet [6] and air outlet [5] two places of freezer [11] inside part, the air door [7] that has at least a place to be provided with just to close when being heated defrost when evaporimeter [4].

5. according to claim 1 and 4 described a kind of self refrigerators that can constitute small-sized Frostless ice house, it is characterized in that: described air door [7] is to be made of monolithic door or multi-disc door, and Push And Release is controlled by electronic pneumatic or manual.

6. according to the described a kind of self refrigerator that can constitute small-sized Frostless ice house of claim 1, it is characterized in that: the described unit body that is independent of freezer [11], it is window type machine or top type machine.

7. according to the described a kind of self refrigerator that can constitute small-sized Frostless ice house of claim 1, it is characterized in that: described two unit bodies that are independent of freezer [11], its indoor set are on-hook type or cabinet-type air conditioner type or furred ceiling type.