CN205002492U

CN205002492U - Refrigeration plant with pressure compensation function

Info

Publication number: CN205002492U
Application number: CN201520658987.6U
Authority: CN
Inventors: 李海军; 万新明; 孙永升
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2016-01-27
Anticipated expiration: 2025-08-28

Abstract

The utility model discloses a refrigeration plant with pressure compensation function, including box and chamber door it has the cushion chamber to open on the lateral wall of box or the chamber door, cushion chamber one end with box inner space intercommunication, one end communicates with the outside atmosphere of box in addition be provided with in the cushion chamber with the buffer film that the outside atmosphere of box inner space and box is kept apart, the buffer film is the flexible structure. The utility model discloses a refrigeration plant, when refrigeration temperature atmospheric pressure reduces in the box, because the buffer film is the flexible structure, and the buffer film takes place deformation to the orientation with box inner space intercommunication in the cushion chamber, can reduce or even eliminate box internal -external differential pressure, consequently can avoid resulting in the problem of frosting because outside humid tropical that pressure differential led to the fact is gaseous from gap getting into the such as crack inside, and whole buffer structure is simple, the reliability height.

Description

A kind of refrigeration plant with pressure compensation

Technical field

The utility model relates to a kind of refrigeration plant, specifically, relates to a kind of refrigeration plant with pressure compensation.

Background technology

For refrigerator, this kind of temperature control device needing continuous firing of refrigerator, need structure one closed, the inner space of constant temperature is used for preserving the thermally sensitive article such as food.In this kind equipment normal work period, inevitably be opened and closed, in equipment, the temperature of air raises, when chamber door close rear Inside Air Temperature again reduce time, according to The Ideal-Gas Equation, when inner space volume is constant, the pressure of inner air reduces, therefore, there will be pressure difference between inner space and external environment condition.Under the effect of pressure difference, external high temperature, highly humid air easily via between door and doorframe slight void enter into inner space, after highly humid air runs into inner cold air, release heat causes frosting, frosting not only can cause the mean temperature of inner air to raise, and the frost be attached on freezer indoor wall can reduce the heat transfer efficiency of inwall, thus increase the energy consumption of equipment.

For this industry difficult problem, traditional way utilizes gasket to seal between refrigerating chamber door body and doorframe, lift-off seal effect improves the tightness degree combined between Men Tiyu doorframe, reduce gap to greatest extent, or adopt strong magnetic by chamber door adhesive, need when this kind of mode causes user to open the door to overcome the negative pressure of inner space and large magnetic force by very large strength, bring inconvenient problem of opening the door.

Summary of the invention

The utility model is in order to solve air pressure also corresponding reduction when existing refrigeration plant internal temperature reduces, under differential pressure action, outside high humidity high-temperature gas enters, cause the technical problem of the inner frosting of refrigeration plant, refrigerating efficiency difference, propose a kind of refrigeration plant with pressure compensation, can solve the problem.

In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of refrigeration plant with pressure compensation, comprise casing and chamber door, the sidewall or chamber door of described casing have cushion chamber, described cushion chamber one end is communicated with described housing interior volume, one end is communicated with casing outside atmosphere in addition, in described cushion chamber, be provided with the buffer film of described housing interior volume and casing outside atmosphere being isolated, described buffer film is flexible structure.

Further, described buffer film is the heat insulation buffer film made by heat-barrier material.

Further, described buffer film has the connecting portion of a week and middle lug boss, described connecting portion and buffering cavity wall sealing laminating.

Further, the longitudinal cross-section of described lug boss is inverted U-shaped or arc.

Further, when the longitudinal cross-section of described lug boss is inverted U-shaped, its vertical side walls has fold.

Further, described refrigeration plant is refrigerator or refrigerator.

Compared with prior art, advantage of the present utility model and good effect are: refrigeration plant of the present utility model, by having cushion chamber on the sidewall or chamber door of described casing, and in described cushion chamber, be provided with the buffer film of described housing interior volume and casing outside atmosphere being isolated, when the air temperature and air pressure that freezes in casing reduces, because described buffer film is flexible structure, deformation is there is to the direction be communicated with housing interior volume in buffer film in cushion chamber, can reduce even to eliminate casing inside and outside differential pressure, therefore the problem external high temperature high humidity gas caused due to pressure reduction can being avoided from gaps such as crack between a door and its frames to enter box house cause frosting, whole buffer structure is simple, reliability is high.

After reading the detailed description of the utility model embodiment by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 be the utility model propose to have a kind of example structure schematic diagram of the refrigeration plant of pressure compensation;

Fig. 2 is the structural representation under buffer film 30 deployed condition in Fig. 1.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment one, the present embodiment proposes a kind of refrigeration plant with pressure compensation, as shown in Figure 1, comprise casing 10 and chamber door 20, described chamber door 20 has cushion chamber 21, when chamber door 20 is closed, described cushion chamber 21 one end is communicated with described casing 10 inner space, one end is communicated with casing 10 outside atmosphere in addition, is provided with the buffer film 30 of being isolated in described casing 10 inner space and casing 10 outside atmosphere in described cushion chamber 21, and described buffer film 30 is flexible structure.Except offering except cushion chamber 21 on chamber door 20, cushion chamber 21 can also be offered on the sidewall of casing 10, the quantity of cushion chamber 21 can be one or more, this refrigeration plant, by having cushion chamber 21 on the sidewall or chamber door 20 of described casing 21, and in described cushion chamber 21, be provided with the buffer film 30 of described housing interior volume and casing outside atmosphere being isolated, when the air temperature and air pressure that freezes in casing 10 reduces, because described buffer film 30 is flexible structure, deformation is there is to the direction be communicated with housing interior volume in buffer film 30 in cushion chamber 21, can reduce even to eliminate casing 10 inside and outside differential pressure, therefore the series of problems external high temperature high humidity gas caused due to pressure reduction can being avoided from gaps such as crack between a door and its frames to enter box house cause frosting and bring due to frosting, whole buffer structure is simple, reliability is high.

As a preferred embodiment, in order to the exchange heat preventing casing 10 inner air and extraneous air from being undertaken by thermal isolation film, cause the cold in refrigeration plant to run off, described buffer film 30 is the heat insulation buffer film made by heat-barrier material.

In the present embodiment, conveniently buffer film 30 is installed fixing, and as shown in Figure 1, described buffer film 30 has the connecting portion 301 of a week and middle lug boss 302, described connecting portion 301 and the laminating of cushion chamber 21 inner wall sealing.

Wherein, shape and the material of lug boss 302 are unrestricted, and the longitudinal cross-section of described lug boss can be inverted U-shaped or arc.The structural design of arc conveniently provides buffer film 30 because of the enough deformation space of pressure differential, and maximized balance external and internal pressure is poor.

When the longitudinal cross-section of described lug boss 302 is inverted U-shaped, its vertical side walls has fold 303.As shown in Figure 2, for the deformed state schematic diagram of buffer film 30 under pressure differential effect, after the gas temperature of inner space reduces, inner space gas pressure intensity reduces, lug boss 302 is under pressure differential effect, and internally space is protruded, and fold 303 trails, the volume of whole inner space is reduced, thus avoids the further reduction of inner space gas pressure intensity.After user opens chamber door 20, inner and ft connection, buffer film 30 internal and external pressure balance.Under restoring force effect, lug boss 302 replys nature.

The refrigeration plant of the present embodiment can be refrigerator or refrigerator.

Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims

1. one kind has the refrigeration plant of pressure compensation, comprise casing and chamber door, it is characterized in that: on the sidewall or chamber door of described casing, have cushion chamber, described cushion chamber one end is communicated with described housing interior volume, one end is communicated with casing outside atmosphere in addition, in described cushion chamber, be provided with the buffer film of described housing interior volume and casing outside atmosphere being isolated, described buffer film is flexible structure.

2. the refrigeration plant with pressure compensation according to claim 1, is characterized in that: described buffer film is the heat insulation buffer film made by heat-barrier material.

3. the refrigeration plant with pressure compensation according to claim 1 and 2, is characterized in that: described buffer film has the connecting portion of a week and middle lug boss, described connecting portion and buffering cavity wall sealing laminating.

4. the refrigeration plant with pressure compensation according to claim 3, is characterized in that: the longitudinal cross-section of described lug boss is inverted U-shaped or arc.

5. the refrigeration plant with pressure compensation according to claim 4, is characterized in that: when the longitudinal cross-section of described lug boss is inverted U-shaped, its vertical side walls has fold.

6. the refrigeration plant with pressure compensation according to claim 1 and 2, is characterized in that: described refrigeration plant is refrigerator or refrigerator.