CN218033925U - Supercharging device and refrigerator - Google Patents

Abstract

The utility model discloses a supercharging device and refrigerator, include: the refrigerator door comprises an air box, a pressurizing assembly and an air outlet, wherein the air box is arranged in a refrigerator door body and wrapped by foaming agent, the pressurizing assembly is arranged in the air box, the air outlet end of the pressurizing assembly extends out of the inner side of the refrigerator door body, and the air box is provided with an air hole communicated with the outer side of the refrigerator door body. The utility model discloses a set up supercharging device in the door body of refrigerator, atmospheric pressure in the refrigerator can lead to the door body to be difficult to when opening with external atmospheric pressure unbalance, opens the pressure boost subassembly automatically and to the indoor pressure of inflating in the refrigerator room, makes the indoor atmospheric pressure of refrigerator room and external atmospheric pressure balance, can easily pull open the door body of refrigerator when needing to open the door. Meanwhile, the gas filtering component is arranged, so that the outside air entering the air box can be filtered firstly.

Description

Supercharging device and refrigerator

Technical Field

The utility model relates to a refrigerator technical field especially relates to a supercharging device and refrigerator.

Background

The existing refrigerator freezing chamber is difficult to open the refrigerator door again in a short time after the refrigerator door is opened and the door is closed in east and west directions, and the door is difficult to pull open even if the door is pulled forcefully. This is because after opening the refrigerator door, there is a large amount of outside hot-air to get into the refrigerator freezer, close the door after, the hot-air temperature is reduced rapidly, lead to the atmospheric pressure in the freezer also to descend rapidly, make the inside and outside of freezer produce very big pressure differential, and the sealing strip on the refrigerator door has the sealing action, the air of outside hardly gets into the refrigerator freezer in the short time, the inside and outside pressure differential of freezer is difficult to eliminate in the short time like this, the refrigerator door also is difficult to open in the short time, cause the difficulty of opening the door.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve among the above-mentioned prior art refrigerator because the negative pressure difficulty of opening the door technical problem, provide a supercharging device and refrigerator.

The utility model adopts the technical proposal that:

the utility model provides a supercharging device, include: the refrigerator door comprises an air box arranged in a refrigerator door body and a pressurizing assembly arranged in the air box and provided with an air outlet end extending out of the inner side of the refrigerator door body, wherein the air box is provided with an air hole communicated with the outer side of the refrigerator door body.

Furthermore, the bottom surface of the air box is attached to the inner bottom surface of the refrigerator door body, and the foaming agent in the refrigerator door body wraps the periphery and the top surface of the air box.

Further, the air holes are formed in the bottom surface of the air box, and the through holes overlapped with the air holes are formed in the bottom surface of the refrigerator door body. The air inlet path is simplified, and the air box can be communicated with the outside only by being installed in place.

Furthermore, a gas filtering component communicated with the gas hole is arranged in the gas box. The outside air is prevented from directly entering the air box.

The pressure boost subassembly includes:

one end of the pneumatic valve body is provided with the air outlet end, and the other end of the pneumatic valve body is provided with a piston rod;

and the driving assembly drives the piston rod to move back and forth to inflate the refrigerator compartment.

The drive assembly includes:

the fixed plate is arranged in the box body;

the rotating plate is connected with the fixed plate in parallel through a fixed shaft and can rotate;

the rotating pair and the driving pair are arranged on the rotating plate, the rotating pair is connected with the piston rod, and the driving pair is connected with the driving rod;

and the driving piece drives the driving rod to move back and forth to drive the rotating plate to rotate repeatedly.

The utility model discloses still include: and the air pressure sensor assembly is used for detecting the air pressure inside and outside the refrigerator.

The utility model discloses still include: the controller controls the pressurizing assembly to pressurize according to the change of the pressure of the inside and outside of the refrigerator, when the pressure difference of the inside and outside of the refrigerator is larger than a preset difference value, and when the pressure difference of the inside and outside of the refrigerator is smaller than or equal to the preset difference value, the controller closes the pressurizing assembly.

The utility model also provides a refrigerator, including foretell supercharging device.

Furthermore, the pressurizing device is arranged on a door body of a refrigerating chamber and/or a freezing chamber of the refrigerator.

Compared with the prior art, the utility model discloses a directly set up supercharging device in the door body of refrigerator, when atmospheric pressure in the refrigerator and external atmospheric pressure unbalance can lead to the door body to be difficult to open, directly open the pressure boost subassembly automatically and to the indoor pressure boost of aerifing between the refrigerator, make indoor atmospheric pressure and external atmospheric pressure balance between the refrigerator, can easily pull open the door body of refrigerator. Meanwhile, the gas filtering component is arranged, so that the external air entering the gas box can be filtered firstly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram showing the structure of the internal part of the gas tank in the embodiment of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

1. A box body; 2. a door body; 3. a pressure boosting device;

31. a gas tank;

321. a pneumatic valve body; 322. a fixing plate; 323. a rotating plate; 324. a fixed shaft; 325. a rotating pair; 326. a driving pair;

3212. an air outlet end; 3213. a piston rod;

33. a gas filtration module.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.

In the refrigerator industry at present, in order to guarantee the heat preservation requirement of refrigerator, the available space in the refrigerator is required to have good stable sealed environment usually. In order to achieve the predetermined heat preservation effect, the design between the parts needs to be closely matched. Namely, after the required sealing performance is met, the heat preservation effect is achieved; however, this structure has a drawback: when the utensil needs to be opened to take out the articles in the utensil, the phenomenon that the door is difficult to open due to large opening force occurs.

The reasons for this are: when the door is opened, external hot air is sent into the appliance, after the appliance operates stably, the temperature inside the appliance is reduced to a set temperature, the air pressure in the container is reduced accordingly, pressure difference is formed between the air pressure and the outside of the container, and the phenomenon that the door is difficult to open is caused due to a good sealing effect.

When the refrigerator is in a power-on state and is in a stable state, the internal temperature of the refrigerator is lower than the external temperature, according to an ideal gas law formula pv = nrt, r is a general gas constant, the pressure intensity of the gas is in direct proportion to the amount (n) of the gas and the temperature of the gas and in inverse proportion to the volume (v) of the gas, the volume (v) of the compartment of the refrigerator is a fixed value, and the lower the temperature is, the lower the internal pressure is, and the external pressure is higher than the internal pressure; according to pressure formula F = ps again, p is pressure, and s is the area, and the door area is unchangeable, and pressure is big more, because effort and reaction force, pressure (door opening force) on the external action door are greater than the produced suction of inside refrigerator (door strip of paper used for sealing is the medium), and the power when opening the door can be big, for effectively balanced inside and outside pressure, to this, the utility model provides a refrigerator with pneumatic valve device can effectively balance the inside and outside pressure differential that exists of refrigerator, reduces the opening force of door.

As shown in fig. 1 to 3, the present invention provides a pneumatic valve device, which specifically includes: air box 31 and pressure boost subassembly, air box 31 set up in the door body 2 of refrigerator to by the foamer parcel in the refrigerator door body 2, avoid influencing the thermal-insulated effect of heat preservation of refrigerator door body 2. The pressurizing assembly is installed in the air box 31, the air outlet end of the pressurizing assembly is a nozzle, a pipeline of the nozzle penetrates through the air box 31 and penetrates through the inner side face of the door body 2 to extend into the refrigerator compartment, the air outlet end is in an interruption state when the pressurizing assembly is not opened, and air can be directly extracted from the outside after the pressurizing assembly is opened and then is inflated and pressurized into the refrigerator compartment through the air box. Therefore, when the door body cannot be opened or the internal and external air pressure of the refrigerator is unbalanced, the pressurizing assembly can be opened to inflate and pressurize the refrigerator chamber, so that the air pressure in the refrigerator chamber is balanced with the external air pressure, and the door body of the refrigerator can be easily pulled open.

In a specific embodiment, in order to facilitate installation of the air box 31, the air box 31 is first fixed on the bottom surface inside the refrigerator door 2, that is, the bottom surface of the air box 31 is attached to the inner bottom surface of the refrigerator door 2, and then a foaming agent is injected into the refrigerator door to fill the remaining space inside the refrigerator door with the foaming agent, so that the foaming agent surrounds the periphery and the top surface of the air box 31, and the air box 31 is wrapped inside. The air box is prevented from influencing the heat preservation and insulation effect of the refrigerator door body, and meanwhile, the position of the air box is stable.

The bottom surface of the air box 31 is provided with air holes, the bottom surface of the refrigerator door body 2 is provided with through holes, the through holes are overlapped with the air holes on the bottom surface of the air box 31, and as long as the pressurizing assembly acts, air can be automatically pumped from the outside through the air holes and then is filled into the refrigerator compartment through the air outlet end of the pressurizing assembly, so that the air pressure of the refrigerator compartment is balanced with the outside. Meanwhile, the gas filtering component 33 is arranged in the gas box 31, the gas filtering component 33 directly covers the gas holes in the bottom surface of the gas box 31, the outside air entering the gas box 31 from the gas holes can be filtered by the gas filtering component 33 firstly, because the air sucked into the gas box 31 from the outside is thermal, according to the test verification, when the temperature is increased by 5 ℃, the energy consumption loss is increased by 25 percent, the loss caused by hot air is avoided, when the outside air enters, the outside air firstly passes through the gas filtering, the air is cooled, and then the air enters the independent space unit in the gas box 31, the process does not directly exchange heat with the outside, and no heat loss exists.

The pressure boost subassembly includes specifically: a pneumatic valve body 321 and a drive assembly. The upper end of the pneumatic valve body 321 is provided with an air outlet end 3212, a pipeline of the air outlet end 3212 penetrates through the air box 31 and the inner side surface of the refrigerator door body 2 and extends into the refrigerator compartment, the lower end of the pneumatic valve body 321 is provided with a piston rod 3213, and the refrigerator compartment can be inflated and pressurized by repeatedly pushing the piston rod 3213, the principle is similar to that of an air cylinder, and the principle is known technology, and the internal structure of the pneumatic valve body is not described in detail; the driving component can drive the piston rod 3213 to move back and forth to inflate the refrigerator compartment. In concrete application again, can set up drive assembly's switch button in the refrigerator body outside, for example directly set up and set up the switch handle in the inner groovy of refrigerator door side, need open the door and find directly pressing the switch when drawing motionless, can normally pull open the door. An air pressure sensor assembly can be arranged to detect air pressure inside and outside the refrigerator compartment, and when the air pressure inside and outside the refrigerator is unbalanced, the automatic control driving assembly drives the pneumatic valve body 321 to balance the air pressure between the refrigerator compartment and the outside. When the door needs to be opened, the door body can be directly and normally pulled open.

The drive assembly is provided with a plurality of types, and the drive assembly can drive the piston rod to move back and forth. A preferred embodiment is now given, in particular as follows:

the drive assembly includes: the device comprises a fixed plate 322, a rotating plate 323, a rotating pair 325, a driving pair 326 and a driving member, wherein the driving member is specifically a driving cylinder (not shown in the figure), and a telescopic rod of the driving cylinder is a driving rod. The fixed plate 322 is fixed in the air box 31, the fixed plate 322 is parallel to the outer side of the refrigerator body 1, the rotating plate 323 is connected to the fixed plate 322 by the fixed shaft 324, the fixed shaft 324 is perpendicular to the rotating plate 323 and the rotating plate 323, so that the rotating plate 323 is parallel to the fixed plate 322, and the rotating plate 323 can rotate around the fixed shaft 324. The rotating plate 323 is provided with a rotating pair 325 and a driving pair 326 which are respectively located at positions of the rotating plate 323 close to two sides, the rotating pair 325 is connected with a piston rod 3213 of the pneumatic valve body 321, the upper end of the pneumatic valve body 321 is fixed on a first supporting shaft, the pneumatic valve body 321 can swing with the first supporting shaft as a center (specifically, a lantern ring is arranged on the rotating pair 325, the piston rod is directly connected on the lantern ring), a telescopic rod of the driving cylinder is connected with the driving pair 326 (specifically, a lantern ring is arranged on the driving pair 326, the telescopic rod is directly connected on the lantern ring), the other end of the driving cylinder is fixed on a second supporting shaft, so that the driving cylinder can swing with a small amplitude with the second supporting shaft as a center, and the first and second supporting shafts are both directly and vertically fixed on the side wall of the air box 31, so that the whole pressurizing assembly can stably operate. The telescopic link that drives actuating cylinder connects the revolute pair, and accessible drive pair 326 drives the rotor plate and makes a round trip to rotate, makes revolute pair 325 move passively to drive the piston rod and make a round trip to move and aerify, can reduce drive arrangement's thickness and volume through adopting board-like drive structure, overall structure is more stable simultaneously.

In other embodiments, also can be directly be connected with the piston rod with the telescopic link that drives actuating cylinder, come to carry out atmospheric pressure balance with the motion through driving actuating cylinder direct drive piston rod, all be in the utility model discloses a within the scope of protection. The pressurizing assembly can also be an air pump, and air is supplemented into the refrigerator compartment to balance air pressure in an air suction mode.

The utility model discloses still include: atmospheric pressure sensor subassembly and controller, atmospheric pressure sensor subassembly divide into two parts, and one of them interior atmospheric pressure sensor is installed indoor between the refrigerator, and another external pressure sensor installs outside the refrigerator, can detect indoor atmospheric pressure and the external atmospheric pressure between the refrigerator simultaneously through sensor assembly, and whether the inside and outside atmospheric pressure of refrigerator is balanced through comparing two atmospheric pressure's size. The controller controls the pressurizing assembly according to the change of the pressure inside and outside the refrigerator, when the pressure difference between the inside and outside of the refrigerator is larger than a preset difference value, the controller controls the pressurizing assembly to inflate, and when the pressure difference between the inside and outside of the refrigerator is smaller than or equal to the preset difference value, the controller closes the pressurizing assembly. The automatic balance of the internal and external air pressures of the refrigerator compartment can be realized.

The utility model also provides a refrigerator, including foretell supercharging device.

The refrigerator comprises a door body, a refrigerator body and other necessary refrigerating parts of the refrigerator, and the supercharging device can be arranged in the door body of the refrigerating chamber or the door body of the freezing chamber.

It is noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A supercharging arrangement, comprising: the refrigerator door comprises an air box arranged in a refrigerator door body and a pressurizing assembly arranged in the air box and provided with an air outlet end extending out of the inner side of the refrigerator door body, wherein the air box is provided with an air hole communicated with the outer side of the refrigerator door body.

2. The supercharging device of claim 1, wherein the bottom surface of the air box is attached to the inner bottom surface of the refrigerator door body, and the foaming agent in the refrigerator door body wraps the periphery and the top surface of the air box.

3. The supercharging device according to claim 2, wherein the air hole is provided in a bottom surface of the air box, and a through hole overlapping with the air hole is provided in a bottom surface of the refrigerator door body.

4. The supercharging device of claim 1, wherein a gas filter assembly is disposed in the gas tank in communication with the gas vent.

5. The booster apparatus of claim 1, wherein the booster assembly comprises:

one end of the pneumatic valve body is provided with the air outlet end, and the other end of the pneumatic valve body is provided with a piston rod;

and the driving assembly drives the piston rod to move back and forth to inflate the refrigerator compartment.

6. The supercharging arrangement of claim 5, wherein the drive assembly comprises:

the fixed plate is arranged in the box body;

the rotating plate is connected with the fixed plate in parallel through a fixed shaft and can rotate;

the rotating pair and the driving pair are arranged on the rotating plate, the rotating pair is connected with the piston rod, and the driving pair is connected with the driving rod;

and the driving piece drives the driving rod to move back and forth to drive the rotating plate to rotate repeatedly.

7. The supercharging apparatus as claimed in claim 1, further comprising: and the air pressure sensor assembly is used for detecting the air pressure inside and outside the refrigerator.

8. The supercharging apparatus of claim 7, further comprising: the controller controls the pressurizing assembly to pressurize according to the change of the pressure of the inside and outside of the refrigerator, when the pressure difference of the inside and outside of the refrigerator is larger than a preset difference value, and when the pressure difference of the inside and outside of the refrigerator is smaller than or equal to the preset difference value, the controller closes the pressurizing assembly.

9. A refrigerator characterized by comprising the pressurization device according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, wherein the pressurizing device is installed on a door body of a refrigerating compartment and/or a freezing compartment of the refrigerator.

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