CN213984176U

CN213984176U - Sublimation type frostless low-temperature box

Info

Publication number: CN213984176U
Application number: CN202022930938.7U
Authority: CN
Inventors: 贾坤伟; 朱瑞雷
Original assignee: Shanghai Aozhen Instrument Manufacturing Co ltd
Current assignee: Shanghai Aozhen Instrument Manufacturing Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-17
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to the field of refrigeration equipment, in particular to a sublimation type frost-free low-temperature box, which comprises a box body of the low-temperature box, a two-position three-way valve arranged inside the box body, a first evaporator and a second evaporator; a working chamber is arranged in the box body, and a plurality of object placing plates for placing materials are arranged in the working chamber at equal intervals; an inner circulating fan is arranged on the inner side of the working chamber, a heater is arranged on one side of the inner circulating fan, and a first evaporator and a second evaporator are arranged below the inner circulating fan at intervals; two-position three-way valves and three-way valves are arranged on one sides of the first evaporator and the second evaporator; the condenser is installed to the bottom of box, and the compressor is installed to one side of condenser, and the condenser is connected with the compressor. The utility model discloses a two three-way valves make a round trip to switch between two evaporimeters, reach the purpose of same refrigerating output, guaranteed the long-time work of two evaporimeters again, still guarantee the box constancy of temperature.

Description

Sublimation type frostless low-temperature box

Technical Field

The utility model relates to a refrigeration plant field specifically is a formula of subliming frost-free low-temperature box.

Background

The conventional frostless refrigerator mostly adopts two defrosting modes of stopping defrosting or heating defrosting, the two defrosting modes can generate large fluctuation (3-5 degrees) to the temperature in the refrigerator body, two sets of compressors work in turn to realize frostless, but the two sets of systems are difficult to be consistent, the temperature fluctuation of 1-3 degrees can be generated when the compressors are switched, and the requirements of experiments and cultivation of high-end (such as medicine and blood storage) cannot be met, so that a sublimation type double-low-temperature box with high stability is urgently needed to meet the requirements of the high-end market.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula of subliming frost-free cryostat to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sublimation type frostless low-temperature box comprises a box body of the low-temperature box, a two-position three-way valve arranged in the box body, a first evaporator and a second evaporator; a working chamber is arranged in the box body, and a plurality of object placing plates for placing materials are arranged in the working chamber at equal intervals; an inner circulating fan is arranged on the inner side of the working chamber, a heater is arranged on one side of the inner circulating fan, a first evaporator and a second evaporator are arranged below the inner circulating fan at intervals, and the first evaporator is arranged above the second evaporator; two-position three-way valves and three-way valves are arranged on one sides of the first evaporator and the second evaporator; the condenser is installed to the bottom of box, and the compressor is installed to one side of condenser, and the condenser is connected with the compressor.

Preferably, the two-position three-way valve is communicated with the compressor through a capillary tube and a condenser, and the first evaporator and the second evaporator are communicated with the two-position three-way valve and the three-way valve.

Preferably, a door panel is arranged on one side of the box body.

Preferably, the inner wall of the box body is provided with a heat insulation layer.

Preferably, the two-position three-way valve, the condenser and the compressor are all arranged on the outer side of the heat insulation layer.

Preferably, the left and right sides of putting the thing board all is provided with the connection riser that is used for connecting the box inner wall, the middle part of connecting the riser with put the tip fixed connection of thing board, and connect the riser and put the thing board and be vertical structure.

Preferably, the inner walls of the left side and the right side of the box body are provided with connecting pieces in positions corresponding to the object placing plates, one ends of the connecting pieces are fixedly connected with the inner walls of the box body, and the other ends of the connecting pieces are provided with connecting grooves for the object placing plates and connecting vertical plates to insert into T-shaped structures.

Preferably, the object placing plate is inserted into the connecting groove from outside to inside, the connecting piece and the end part of the object placing plate are both provided with positioning through holes, and positioning rods with T-shaped structures are inserted into the positioning through holes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a traditional compressor system, switch back and forth between two evaporimeters through a two three-way valve, reach the purpose of same refrigerating output, the long-time work of two evaporimeters has been guaranteed again, the constancy of temperature is still guaranteed, owing to be same refrigerating output when changing the frost and switching, make keep homothermal state in the low temperature box, with this long-time preservation that satisfies medicine case and blood sample hutch, the demand of the required temperature of experiment, this low temperature fridge mainly is applicable to if medicine storage, the equipment that needs 0-10 degrees long-time storages and experiments such as blood storage, market demand is big, each hospital, the pharmaceutical factory all needs this kind of high performance equipment.

2. The utility model discloses the thing board of putting that sets up in the inside of box is through connecting the cooperation joint between riser and the connecting piece on the inner wall of the box left and right sides, fixes on the connecting piece through the locating lever again, and simple structure gets and puts the convenience, and has ensured the stability of putting the thing board for the material of putting on the thing board is difficult for rocking at the in-process of removal, transport, improves the stability of material.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure between the object placing plate and the box body of the present invention;

fig. 3 is a schematic structural diagram of part a of the present invention.

In the figure: 1. a box body; 2. a two-position three-way valve; 3. a first evaporator; 4. a second evaporator; 5. a working chamber; 6. a storage plate; 7. an internal circulation fan; 8. a heater; 9. a condenser; 10. a compressor; 11. a capillary tube; 12. a door panel; 13. a heat-insulating layer; 14. connecting a vertical plate; 15. a connecting member; 16. a connecting groove; 17. positioning the through hole; 18. positioning a rod; 19. and a three-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a sublimation type frostless low-temperature box comprises a box body 1 of the low-temperature box, a two-position three-way valve 2 arranged inside the box body 1, a first evaporator 3 and a second evaporator 4; a working chamber 5 is arranged in the box body 1, and a plurality of object placing plates 6 for placing materials are arranged in the working chamber 5 at equal intervals; an inner circulating fan 7 is arranged on the inner side of the working chamber 5, a heater 8 is arranged on one side of the inner circulating fan 7, a first evaporator 3 and a second evaporator 4 are arranged below the inner circulating fan 7 at intervals, and the first evaporator 3 is arranged above the second evaporator 4; one side of the first evaporator 3 and the second evaporator 4 is provided with a two-position three-way valve 2 and a three-way valve 19; a condenser 9 is installed at the bottom of the box body 1, a compressor 10 is installed at one side of the condenser 9, and the condenser 9 is connected with the compressor 10.

Further, the two-position three-way valve 2 is communicated with the compressor 10 through a capillary tube 11 and a condenser 9, and the first evaporator 3 and the second evaporator 4 are both communicated with the two-position three-way valve 2 and the three-way valve 19.

Further, a door panel 12 is provided at one side of the cabinet 1.

Further, an insulating layer 13 is arranged on the inner wall of the box body 1.

Further, the two-position three-way valve 2, the three-way valve 19, the condenser 9 and the compressor 10 are all installed on the outer side of the heat insulation layer 13.

Further, the left and right sides of putting thing board 6 all is provided with the connection riser 14 that is used for connecting the 1 inner wall of box, connects the middle part of riser 14 and the tip fixed connection who puts thing board 6, and connects riser 14 and puts thing board 6 and be vertical structure.

Furthermore, the inner walls of the left side and the right side of the box body 1 are provided with connecting pieces 15 corresponding to the positions of the object placing plates 6, one ends of the connecting pieces 15 are fixedly connected with the inner walls of the box body 1, and the other ends of the connecting pieces 15 are provided with connecting grooves 16 for the object placing plates 6 and connecting vertical plates 14 to be inserted into the T-shaped structures.

Furthermore, the object placing plate 6 is inserted into the connecting groove 16 from outside to inside, the connecting piece 15 and the end part of the object placing plate 6 are both provided with positioning through holes 17, and positioning rods 18 with T-shaped structures are inserted into the positioning through holes 17.

Example 1: the utility model adopts the traditional compressor 10 system, and switches back and forth between two evaporators through a two-position three-way valve 2 to achieve the purpose of the same refrigerating output, when the first evaporator 3 works, the strong wind directly sublimates the ice on the second evaporator 4 in a short time and directly gasifies the ice into gas in a short time so as to achieve the purpose of defrosting; when the second evaporator 4 works, strong wind passes through the first evaporator 3, ice on the first evaporator 3 is directly sublimated and directly gasified in a solid state in a short time to form gas, so that the aim of defrosting is fulfilled; the circulation is repeated, the long-time work of the two evaporators is guaranteed, the temperature is constant, the constant temperature state is kept in the box body 1 of the low-temperature box due to the same refrigerating capacity during defrosting switching, the temperature requirements required by long-time storage and experiments of the medicine box and the blood sample storage box are met, the low-temperature box is mainly suitable for equipment which needs 0-10 ℃ long-time storage and experiments such as medicine storage and blood storage, the market demand is large, and hospitals and pharmaceutical factories need the high-performance equipment.

Example 2: the utility model discloses a plurality of thing boards 6 of putting have been set up in box 1's inside, it is before using to put thing board 6, will connect riser 14 and put in the connecting groove 16 on the inserting connecting piece 15 that the tip of thing board 6 corresponds, again with the locating lever 18 from last to lower suction put in the positioning hole 17 on thing board 6 and the connecting piece 15, make to put thing board 6 to fix on the inner wall of the 1 left and right sides of box, moreover, the steam generator is simple in structure, it is convenient to get and put, and ensured the stability of putting thing board 6, make to put the material on the thing board 6 and remove, the in-process of transport is difficult for rocking, the stability of material is improved.

It is worth noting that: the whole device realizes control over the device through the controller, and because the equipment matched with the controller is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a formula of subliming frost-free cryostat which characterized in that: the device comprises a box body (1) of a low-temperature box, a two-position three-way valve (2) arranged inside the box body (1), a first evaporator (3) and a second evaporator (4); a working chamber (5) is arranged in the box body (1), and a plurality of object placing plates (6) for placing materials are arranged in the working chamber (5) at equal intervals; an inner circulating fan (7) is arranged on the inner side of the working chamber (5), a heater (8) is installed on one side of the inner circulating fan (7), a first evaporator (3) and a second evaporator (4) are installed below the inner circulating fan (7) at intervals, and the first evaporator (3) is installed above the second evaporator (4); one sides of the first evaporator (3) and the second evaporator (4) are provided with a two-position three-way valve (2) and a three-way valve (19); condenser (9) are installed to the bottom of box (1), and compressor (10) are installed to one side of condenser (9), and condenser (9) are connected with compressor (10).

2. A sublimation frost-free cryostat according to claim 1, wherein: the two-position three-way valve (2) is communicated with the compressor (10) through a capillary tube (11) and a condenser (9), and the first evaporator (3) and the second evaporator (4) are communicated with the two-position three-way valve (2) and the three-way valve (19).

3. A sublimation frost-free cryostat according to claim 1, wherein: one side of the box body (1) is provided with a door panel (12).

4. A sublimation frost-free cryostat according to claim 1, wherein: and a heat-insulating layer (13) is arranged on the inner wall of the box body (1).

5. A sublimation frost-free cryostat according to claim 1, wherein: and the two-position three-way valve (2), the three-way valve (19), the condenser (9) and the compressor (10) are all arranged on the outer side of the heat-insulating layer (13).

6. A sublimation frost-free cryostat according to claim 1, wherein: the left and right sides of putting thing board (6) all is provided with connection riser (14) that are used for connecting box (1) inner wall, the middle part of connecting riser (14) and the tip fixed connection who puts thing board (6), and connect riser (14) and put thing board (6) and be vertical structure.

7. A sublimation frost-free cryostat according to claim 1, wherein: the storage box is characterized in that connecting pieces (15) are arranged on positions, corresponding to the storage plates (6), of the inner walls of the left side and the right side of the box body (1), one ends of the connecting pieces (15) are fixedly connected with the inner walls of the box body (1), and connecting grooves (16) for the storage plates (6) and connecting vertical plates (14) to insert into the T-shaped structures are formed in the other ends of the connecting pieces (15).

8. A sublimation frost-free cryostat according to claim 1, wherein: the object placing plate (6) is inserted into the connecting groove (16) from outside to inside, the connecting piece (15) and the end part of the object placing plate (6) are provided with positioning through holes (17), and positioning rods (18) of T-shaped structures are inserted into the positioning through holes (17).