CN218495602U - Detection device for refrigerator and refrigerator - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment, and discloses a detection device for a refrigerator and the refrigerator. The refrigerator includes the box, the box is injectd and is held the chamber, it includes the freezer to hold the chamber, a detection device for refrigerator includes: a detection chamber; the first pipeline is suitable for communicating the accommodating cavity with the detection cavity, and gas in the accommodating cavity can enter the detection cavity through the first pipeline; the detection equipment is positioned in the detection cavity and used for detecting the target gas in the detection cavity; wherein the first conduit is adapted to be partially located within the freezing chamber. The first pipeline part is located in the freezing chamber, removes the humidity in the gas to be detected through freezing dehumidification, guarantees that the humidity is in invariable low humidity state in the detection chamber during gas detection, improves check out test set's sensitivity and degree of accuracy.

Description

Detection device for refrigerator and refrigerator

Technical Field

The present application relates to the technical field of refrigeration equipment, and for example, to a detection device for a refrigerator and a refrigerator.

Background

At present, food materials are put into a refrigerator in various types, in the storage process, different foods have different diffused smells, the different smells are mixed together to form unpleasant smells, in addition, the foods which are stored for a long time and are not found can slowly deteriorate or even rot, and in the process, the foods can release unpleasant smells. Because the refrigerator is a closed space, odor cannot be discharged, and peculiar smell exists in the refrigerator. In order to improve user experience, it becomes necessary to provide a smell sensor in the refrigerator to detect and feed back smell in the refrigerator to the user. The existing refrigerator is generally provided with a detection cavity in the inner wall or the air duct, a sensor is arranged in the detection cavity, and gas of the refrigerator is pumped into the detection cavity to be detected.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the temperature and humidity fluctuation in the refrigerator is large, and particularly, when the humidity of the gas detected by the sensor (corresponding to the detection device of the present application) is large, the sensitivity and accuracy of the detection by the sensor are easily lowered.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a detection device for a refrigerator and the refrigerator, so as to reduce the influence of humidity on detection equipment and improve the detection sensitivity and accuracy of the detection equipment.

The embodiment of the present disclosure provides a detection apparatus for a refrigerator, the refrigerator includes the box, the box is injectd and is held the chamber, it includes the freezer to hold the chamber, a detection apparatus for a refrigerator includes: a detection chamber; the first pipeline is suitable for communicating the accommodating cavity with the detection cavity, and gas in the accommodating cavity can enter the detection cavity through the first pipeline; the detection equipment is positioned in the detection cavity and used for detecting the target gas in the detection cavity; wherein the first conduit is adapted to be partially located within the freezing chamber.

Optionally, the detection device for a refrigerator further comprises: and the heating device is arranged in the detection cavity and/or the first pipeline and is used for heating the gas flowing into the detection cavity.

Optionally, the detection device for a refrigerator further comprises: the temperature measuring device is arranged in the detection cavity and used for detecting the temperature in the detection cavity; and the controller is electrically connected with the temperature measuring device, the detection device and the heating device, and is configured to control the heating device and the detection device to work according to the temperature of the detection cavity.

Optionally, the detection chamber is adapted to be located outside the housing.

Optionally, the refrigerator further comprises a compressor, the outer side of the box body further defines a compressor chamber, and the compressor is located in the compressor chamber; the detection cavity is suitable for being located in the press cabin.

Optionally, when the number of the refrigeration spaces is multiple, the first pipelines are suitable for being the same as the number of the refrigeration spaces and correspond to the refrigeration spaces one by one, and the multiple first pipelines are communicated with one detection cavity; wherein each of the first conduits is adapted to be partially located within the freezing chamber.

Optionally, the detection device for a refrigerator further comprises: the second pipeline is used for communicating the detection cavity with the outside and introducing outside air into the detection cavity; and the third pipeline is used for discharging the air flow in the detection cavity to the outside.

Optionally, the detection device for a refrigerator further comprises: and the second driving device is communicated with the second pipeline and can drive the outside air to flow into the detection cavity through the second pipeline.

Optionally, the detection device for a refrigerator further comprises: the first driving device is communicated with the first pipeline and can drive the airflow in the accommodating cavity to flow into the detection cavity through the first pipeline; and/or the adsorption device is arranged in the first pipeline and/or the detection cavity and is used for adsorbing non-target gas in the gas to be detected.

The embodiment of the disclosure also provides a refrigerator, which comprises the detection device for the refrigerator in any one of the above embodiments.

The detection device for the refrigerator and the refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

the gas that holds the intracavity flows to detecting the intracavity through first pipeline and detects again, and it can detect the gas that detects the intracavity to set up check out test set in the detection intracavity. First pipeline part is located the freezer compartment, gets rid of the humidity in waiting to detect the gas through freezing dehumidification, guarantees that the detection intracavity humidity that gas detection time measured is in invariable low humidity state, improves check out test set's sensitivity and degree of accuracy. The refrigeration dehumidification is to cool air by a cold surface to reduce the temperature, and when the temperature of the air is reduced to be lower than a dew point, water vapor in the air is condensed and separated out. The freezing dehumidification performance is stable, the work is reliable, the continuous work can be realized, and the detection method is stable and reliable and has long service life in a refrigerator environment.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a refrigerator provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another refrigerator provided by an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another refrigerator provided in the embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a detection device for a refrigerator according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another refrigerator provided in the embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of another refrigerator provided in the embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another refrigerator provided in the embodiment of the present disclosure;

FIG. 8 is a schematic view of a portion of a first pipeline according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of a partial structure of another first pipeline provided by the embodiment of the disclosure;

fig. 10 is a partial schematic structural view of another first pipeline provided by the embodiment of the disclosure.

Reference numerals:

10. a box body; 101. an accommodating chamber; 102. a freezing chamber; 103. a press cabin; 104. a compressor; 20. A detection chamber; 201. a first pipeline; 202. a second pipeline; 203. a third pipeline; 204. a first driving device; 205. a second driving device; 206. a third driving device; 30. an adsorption device; 301. An adsorption column; 302. adsorbing the coating; 303. a separation membrane; 40. a colorimetric gas sensor; 50. and (5) detecting the equipment.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 10, the present disclosure provides a refrigerator, which includes a cabinet 10, wherein the cabinet 10 defines a receiving cavity 101, and the receiving cavity 101 is used for receiving food or other articles. The refrigerator includes a refrigeration assembly including an evaporator, a condenser, a compressor 104, a throttling device, etc. in communication. The evaporator exchanges heat with the accommodating chamber 101, and the temperature of the accommodating chamber 101 can be reduced.

Optionally, the outside of the box 10 defines a compressor compartment 103, and the compressor 104 is located within the compressor compartment 103.

As shown in fig. 1 to 7, the embodiment of the present disclosure also provides a detection apparatus for a refrigerator, which includes a detection chamber 20, a first pipeline 201 and a detection device 50, wherein the detection chamber 20 is adapted to be located outside the cabinet 10. The first pipeline 201 is suitable for communicating the accommodating cavity 101 and the detection cavity 20, and the gas in the accommodating cavity 101 can flow into the detection cavity 20 through the first pipeline 201. A detection device 50 is located within the detection chamber 20 for detecting the gas within the detection chamber 20.

In this embodiment, the detection chamber 20 is communicated with the accommodating chamber 101 through the first pipeline 201, and the gas in the accommodating chamber 101 can flow into the detection chamber 20 through the first pipeline 201. Like this check out test set 50 (corresponding to the sensor) can reduce the influence that receives the complex environment, for example, check out test set 50 can not receive the inside complex environment of refrigerator, undulant influence of great humiture, and then improve the sensitivity, the accuracy and the stability that check out test set 50 detected, but also can prolong check out test set 50's life.

Alternatively, the shape of the detection chamber 20 may be rectangular, circular, polygonal, etc., and this is not particularly limited in this application. Optionally, the detection cavity 20 is flat, so that the overall appearance of the refrigerator is not affected, and the overhaul is convenient.

Optionally, the detection apparatus for a refrigerator further includes a first driving device 204, the first driving device 204 is communicated with the first pipeline 201, and the first driving device 204 is configured to drive the gas in the accommodating chamber 101 to flow into the detection chamber 20 through the first pipeline 201. The first driving device 204 can drive the gas in the accommodating chamber 101 to flow into the detection chamber 20. This allows the gas in the housing chamber 101 to be extracted into the detection chamber 20 for detection.

It should be noted that: the detection device for a refrigerator may not be provided with the first driving device 204, that is, the gas in the housing chamber 101 can flow into the detection chamber 20 by itself. For example, when the length of the first pipe 201 is small or the pressure difference is large, the gas in the accommodating chamber 101 can enter the detection chamber 20 through the first pipe 201. Alternatively, the first pipeline 201 may be provided with a control switch to control the connection or the disconnection of the first pipeline 201.

Optionally, as shown in fig. 4, the first driving device 204 is located in the first pipeline 201, when the first driving device 204 is operated, the first driving device can drive the gas in the accommodating chamber 101 to flow into the detection chamber 20, when the first driving device 204 is not operated, the first pipeline 201 is not connected, and the gas in the detection chamber 20 cannot flow into the detection chamber 20 through the first pipeline 201. Optionally, a first drive means 204 is provided at the outlet of the first conduit 201.

Alternatively, the first driving device 204 may be a fan or a suction pump.

Optionally, the detection device for the refrigerator further includes a second pipe 202 and/or a third pipe 203, the second pipe 202 communicating the detection chamber 20 with the outside, the second pipe 202 for introducing the outside air into the detection chamber 20. The third pipe 203 connects the detection chamber 20 with the outside, and the third pipe 203 is used for discharging the airflow in the detection chamber 20 to the outside.

In this embodiment, the third pipeline 203 is used for exhausting the gas detected in the detection chamber 20 out of the detection chamber 20. The second conduit 202 is used to introduce fresh ambient air drawn into the test chamber 20. It can be understood that: after the gas in the detection chamber 20 is detected, the fresh air outside replaces the complex gas in the detection chamber 20. This enables the sensor to be sufficiently recovered, extending the life of the detection device 50. In the fresh air outside, the detection equipment 50 can correct the zero point for many times, and the detection accuracy of the detection equipment 50 is improved.

Optionally, the detection apparatus for a refrigerator further comprises a second driving device 205, the second driving device 205 is communicated with the second pipeline 202, and can drive the external air to flow into the detection chamber 20 through the second pipeline 202.

In this embodiment, the second driving device 205 can provide a driving force to make the external airflow flow into the detection cavity 20 through the second pipeline 202.

Alternatively, as shown in fig. 4, the second driving device 205 is located in the second pipeline 202, when the second driving device 205 is operated, the external air may flow into the detection cavity 20 through the second pipeline 202, and when the second driving device 205 is not operated, the second pipeline 202 is not connected, and the external air cannot flow into the detection cavity 20 through the second pipeline 202. Optionally, a second driving means 205 is provided at the outlet of the second conduit 202. Alternatively, the second driving device 205 may be a fan or a suction pump.

It should be noted that: the detection apparatus for a refrigerator may not be provided with the second driving apparatus 205, that is, external gas can flow into the detection chamber 20 by itself. For example, when the length of the second pipe 202 is small or the pressure difference is large, the gas in the accommodating chamber 101 can enter the detection chamber 20 through the second pipe 202. Optionally, the second conduit 202 may be provided with a control switch to control the communication or closing of the second conduit 202.

Optionally, the detection device for a refrigerator further includes a third driving device 206, and the third driving device 206 is communicated with the third pipeline 203 and can drive the gas in the detection chamber 20 to flow out to the outside. In an embodiment, the third driving device 206 is capable of providing a driving force to detect the outflow of the gas inside the chamber 20 to the outside.

Optionally, the third driving device 206 is located in the third pipeline 203, when the third driving device 206 works, the third pipeline 203 is not communicated, and the gas in the detection cavity 20 cannot be exhausted through the third pipeline 203. Optionally, a third drive 206 is provided at the inlet of the third conduit 203.

Alternatively, the third driving device 206 may be a fan or a suction pump.

Optionally, the detection device for a refrigerator further comprises a damper controllably provided to the third pipe 203 for opening or closing the third pipe 203.

In this embodiment, the third pipeline 203 may not be provided with the third driving device 206, and the third pipeline 203 is provided with a damper, so that when the exhaust gas is required to be discharged, the damper is opened to discharge the gas in the detection chamber 20. And during detection, the air door is closed, and no gas exchange is ensured during detection. The noise of the air door is low, and the power consumption is low.

In one embodiment, the first drive 204 comprises a suction pump and/or the second drive 205 is a fan. In this embodiment, first drive arrangement 204 needs to extract and holds the gas in the chamber 101, and the position that holds the chamber 101 is different, and it is also different to detect the chamber 20 apart from the distance that holds the chamber 101, and some pipelines are longer, and in order to guarantee that the gas homoenergetic in the chamber 101 that holds of different positions can be drawn into and detect the chamber 20, first drive arrangement 204 includes the aspiration pump, and suction is great, can improve suction efficiency. The second pipeline 202 is short, so that the second driving device 205 for replacing the gas in the detection cavity 20 can be a fan, and the energy consumption can be reduced by adopting the fan.

As shown in fig. 1 to 3, the detection chamber 20 may be disposed at different positions outside the casing 10, and a user may set the detection chamber 20 as desired. Optionally, the detection chamber 20 is adapted to be provided at the top of the case 10; and/or, the detection chamber 20 is suitable for being arranged on the side surface of the box body 10; and/or, the detection chamber 20 is adapted to be located within the compressor compartment 103 of the refrigerator to increase the temperature of the gas within the detection chamber 20.

In this embodiment, when the detection cavity 20 is located at the top of the box body 10, the detection cavity 20 does not affect the overall appearance of the refrigerator, and the overhaul is convenient. The air path from the refrigerating chamber (the accommodating chamber 101 with the refrigerating function) to the detection chamber 20 of the refrigerator is short, and the cost is saved. And the wire is close to the main control board, and the wiring is convenient. The detection cavity 20 can be arranged on a side surface of the box body 10, such as the surface of the box body 10 or a door body, and thus, the detection cavity is convenient to overhaul and is visual. Optionally, the detection cavity 20 is disposed in the middle of the box 10, such that the detection cavity 20 is closer to the plurality of accommodating cavities 101, which facilitates the arrangement of the plurality of first pipelines 201 inside the refrigerator, and facilitates the detection of different gas environments in the accommodating cavities 101 by using the same sensor. Optionally, the detection cavity 20 is placed in the compressor room 103, so that the appearance of the refrigerator is not affected, and the temperature near the compressor 104 is high, so that gas molecules can be further activated, the sensing reaction is more sufficient, and the sensitivity is improved.

Alternatively, the detection chamber may also be located outside the nacelle 103, arranged in abutment with the nacelle 103, and the temperature inside the detection chamber 20 may also be increased.

Optionally, the refrigerator further includes a housing, and the housing covers the outside of the first pipeline 201, so that the first pipeline 201 can be prevented from being exposed outside the refrigerator, and the appearance of the refrigerator can be prevented from being affected.

Optionally, the first pipe 201 is at least partially curved to increase the length of the first pipe 201.

In this embodiment, the length of the first pipeline 201 is increased, so that the flowing time of the gas at room temperature can be increased, and the temperature of the gas flowing into the detection cavity 20 can be increased. Therefore, the temperature difference between the gas to be detected flowing into the detection cavity 20 and the original gas in the detection cavity 20 is smaller or kept consistent, the influence of temperature fluctuation on the sensor is reduced, and the detection sensitivity of the sensor is improved.

Alternatively, the first conduit 201 may be S-shaped, spiral shaped, or "mosquito-repellent" in that the manner in which the length of the gas flow within the first conduit 201 is increased is an alternative embodiment of the present application.

Optionally, as shown in fig. 5, when the number of the accommodating cavities 101 is multiple, the number of the first pipelines 201 is the same as that of the accommodating cavities 101 and corresponds to one another, and the multiple first pipelines 201 are suitable for communicating one detection cavity 20 with the multiple accommodating cavities 101.

In this embodiment, when the box 10 defines a plurality of accommodating chambers 101, different accommodating chambers 101 can accommodate different kinds of articles or articles with different temperature requirements. Each containing cavity 101 is communicated with the detection cavity 20 through a first pipeline 201, so that the detection cavity 20 can detect the gas in each containing cavity 101.

Optionally, each first pipeline 201 is provided with a switch, and each switch is used for controlling the opening and closing of each corresponding first pipeline 201.

In this embodiment, the switching of each first pipeline 201 is controllable, can realize like this that the gas that holds chamber 101 through a sensor selectivity extraction difference detects, and then can indicate the peculiar smell that different held chamber 101 and/or the fresh or rotten degree of edible material.

It should be noted that: the number of the first pipelines 201 may also be different from the number of the accommodating cavities 101, may be more than the number of the accommodating cavities 101, or may be less than the number of the accommodating cavities 101, and a user may set the number as required.

Optionally, the detection apparatus for a refrigerator further includes a purification apparatus, and the purification apparatus is communicated with an outlet end of the third pipeline 203, so that the gas flowing out of the third pipeline 203 flows to the outside after being purified by the purification apparatus.

In this embodiment, purifier can purify the gas that detects cavity 20 combustion gas to guarantee the cleanliness factor of combustion gas.

Optionally, the purification device comprises a gas absorption solution, i.e. the outlet of the third pipe 203 is inserted into the gas absorption solution, and the gas absorption solution absorbs the heavy-flavor gas with partial solubility and then discharges the heavy-flavor gas.

Optionally, the purification device may also be an adsorbing material such as activated carbon, silica gel, etc. for adsorbing the odor gas. Optionally, the purification device may also be a heating and temperature adjusting device, and after the gas in the detection chamber 20 is detected, the heating and temperature adjusting device adjusts the temperature to a high temperature, so that odor substances such as esters, aldehydes, aromatics and the like are oxidized or decomposed, and the influence on the indoor gas is reduced. The sensor is not operated or/and does not transmit or/and does not process the data collected by the sensor when the exhaust gas is heated.

In some alternative embodiments, the gas drawn from the accommodating chamber 101 to the detection chamber 20 by the first driving device 204 is defined as the gas to be detected, and the detection apparatus 50 may be configured to detect the target gas in the gas to be detected. As shown in fig. 8 to 10, the detection device for a refrigerator further includes an adsorption device 30, the adsorption device 30 is located in the first pipeline 201 and/or the detection chamber 20, and the adsorption device 30 is used for adsorbing non-target gas in the gas to be detected.

In this embodiment, when the detection device 50 in the detection chamber 20 needs to detect one or more target gases, the adsorption apparatus 30 can adsorb all or part of the non-target gases in the accommodation chamber 101, and only the target gases enter the detection chamber 20, so that interference of the non-target gases on the detection device 50 can be reduced, and thus, the selectivity and accuracy of detection by the detection device 50 can be improved.

It should be noted that: the first pipeline 201 provided with the adsorption device 30 according to the embodiment of the present disclosure may not only be applied to the scheme of the external detection cavity 20, but also be provided with the adsorption device 30 in the extraction pipeline of the scheme of the internal wall or the air duct in which the detection cavity 20 is disposed in the related art.

In some alternative embodiments, as shown in fig. 8, the adsorption device 30 includes an adsorption column 301, the adsorption column 301 includes a plurality of adsorption particles, and the plurality of adsorption particles are filled in the first pipeline 201 to form the adsorption column 301. In this embodiment, the adsorption column 301 can adsorb non-target gas, and the adsorption column 301 is easy to process and fix in the first pipeline 201.

Alternatively, the adsorbent particles are porous adsorbent particles, and specifically may include one or more of silica gel, activated carbon, polydimethylsiloxane, polyethylene glycol, cumyl dimethyl polysiloxane, calcium chloride, activated alumina, sodium sulfate, activated carbon, carbon nanotubes, and the like, and a material capable of adsorbing water molecules and interfering gases. Alternatively, the adsorbent particles have a particle size range of: (0 μm,100 μm ], and examples thereof may be 1 μm, 5 μm,10 μm, 50 μm, 60 μm, and 100 μm.

Optionally, the adsorption device 30 further includes end caps, and the end caps are respectively disposed at the gas inlet end and the gas outlet end of the adsorption column 301, and are used for fixing the adsorption column 301. In this embodiment, the end cap can fix the adsorption column 301, and prevent the adsorption column 301 from falling off or moving. Specifically, the end-capping may be a breathable film and/or a net and/or cotton wool, and the like.

Optionally, a water absorbent is also included in the end cap, and the water absorbent can enhance the water absorption effect. As an example, the water absorbing agent may be anhydrous calcium sulfate, anhydrous calcium chloride, or the like.

Alternatively, the length of the adsorption column 301 may be (0m, 1m. The length of the adsorption column 301 may be other lengths, and may be set according to the length of the first pipeline 201. Alternatively, the adsorption column 301 may be one section, and may also be a plurality of sections. Illustratively, the length of the adsorption column 301 may be 0.5m,0.6m, 0.8m, 1m, and the like.

In other alternative embodiments, as shown in fig. 9, the adsorption device 30 includes an adsorption coating 302, and the adsorption coating 302 is disposed on the inner wall of the first pipeline 201. In this embodiment, the adsorption liquid is coated on the pipe wall of the first pipeline 201 to form the adsorption coating 302, and the adsorption coating 302 can also adsorb the non-target gas in the first pipeline 201. The adsorption coating 302 is directly coated on the tube wall of the first pipeline 201, the total inner wall area of the column is large, the coating can be very thin, the mass transfer resistance of the components between gas phase and liquid phase is reduced, the column efficiency is greatly improved, and the separation effect is increased.

Specifically, the adsorption coating liquid may include one or more of polydimethylsiloxane, polyethylene glycol, phenyl-containing polydimethylsiloxane, cyano-containing polymethylsiloxane, trifluoropropyl-containing polymethylsiloxane, and the like.

Alternatively, the thickness of the adsorption coating 302 is (0 μm,200 μm.) too thick the adsorption coating 302 may reduce the flow area of the first pipe 201, thereby affecting the smoothness of the gas flow in the first pipe 201. For example, the thickness of the adsorption coating 302 may be 1 μm,10 μm, 50 μm,100 μm, 150 μm,200 μm.

The length of the adsorption coating 302 is (0m, 20m.) alternatively, the adsorption coating 302 is arranged on the inner wall of the first pipeline 201 along the circumferential direction of the first pipeline 201, alternatively, the adsorption coating 302 can be a whole section or multiple sections, alternatively, the adsorption coating 302 can be arranged in a part of the first pipeline 201 or in all of the first pipeline 201, and the length of the adsorption coating 302 can be 1m, 10m, 15m and 20m.

In some alternative embodiments, as shown in fig. 10, the adsorption device 30 includes a separation membrane 303, the separation membrane 303 is disposed in the first pipeline 201, and the separation membrane 303 is capable of filtering the gas flowing into the detection device. In this embodiment, the separation membrane 303 can filter the non-target gas in the first pipeline 201, and the separation membrane 303 is easy to set and convenient to replace. The detection selectivity and accuracy of the sensor are improved.

Optionally, the separation membrane 303 comprises a porous organic polymer material. The separation membrane 303 includes a porous organic polymer material having a function of isolating water molecules and/or isolating molecules of non-target gases, such as polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, or the like.

Alternatively, the pores of the separation membrane 303 may have a pore diameter of (0 mm,2mm ], and the pore diameter of the pores may be 0.5mm, 1mm, 1.5mm, 2mm, and the like, alternatively, the separation membrane 303 may have a thickness of (0 mm,20 mm) to secure the filtering effect of the separation membrane 303, and the separation membrane 303 may have a thickness of 1mm, 5mm, 10mm, 15mm, 20mm, and the like, for example.

Alternatively, the separation membrane 303 may be provided at the inlet end, the outlet end, and/or the intermediate section of the first pipe 201. This further increases the filtering effect of the separation membrane 303.

Optionally, the separation membrane 303 is matched with the first pipeline 201, and the shape and the outer diameter of the specific separation membrane 303 are consistent with the shape and the inner diameter of the first pipeline 201.

Optionally, the separation membrane 303 may be end group modified to improve the binding of the separation membrane 303 to the non-target gas. Such as amino, hydroxyl and other polar bond modification, can improve the binding performance to polar gas molecules.

Optionally, as shown in fig. 7, the detection device for a refrigerator further includes a colorimetric gas sensor 40, and the colorimetric gas sensor 40 is in communication with the detection chamber 20 and can adjust the color according to the gas information in the detection chamber 20.

In the embodiment, the gas information of the refrigerator is fed back through color change, so that a user can visually recognize the smell information in the refrigerator. Alternatively, the number of colorimetric gas sensors 40 may be multiple, such as a plurality of colorimetric gas sensors 40 forming a colorimetric sensor array, the plurality of colorimetric gas sensors 40 being capable of representing gas information of different gases within the refrigerator.

Optionally, the receiving chamber 101 includes a freezing chamber 102, and the first pipe 201 is partially located in the freezing chamber 102.

In this embodiment, the first pipeline 201 is partially located in the freezing chamber 102, that is, the gas in the first pipeline 201 can flow into the detection chamber 20 through the freezing chamber 102. Therefore, the humidity in the gas to be detected is removed through freezing and dehumidification, the humidity in the detection cavity 20 during gas detection is ensured to be in a constant low-humidity state, and the sensitivity and the accuracy of the sensor are improved. The refrigeration dehumidification is to cool air by a cold surface to reduce the temperature, and when the temperature of the air is reduced to be lower than a dew point, water vapor in the air is condensed and separated out. The freezing dehumidification performance is stable, the work is reliable, the continuous work can be realized, and the detection method is stable and reliable and has long service life in a refrigerator environment.

Since the gas is dehumidified by freezing chamber 102, although the humidity of the gas is reduced, the temperature of the gas is reduced, which results in a large temperature difference between the gas entering detection chamber 20 and the original gas in detection chamber 20, and may affect the detection sensitivity and accuracy of detection device 50. Therefore, the first heating device is arranged in the detection cavity 20, and can reheat the gas flowing in through the freezing chamber 102, so as to reduce the temperature difference between the gas to be detected and the original gas in the detection cavity 20, and further improve the detection sensitivity of the detection device 50.

It should be noted that, in the related art, in the case where the detection chamber 20 is provided in the refrigerator or the air duct, the first pipeline 201 may be partially provided in the freezing chamber 102, and the gas in the first pipeline 201 may be dehumidified. That is, the scheme that the first pipeline can be cooled and dehumidified by the freezing chamber belongs to the alternative embodiment of the application.

Optionally, the detection device for a refrigerator further includes a heating device, and the heating device is disposed in the detection chamber 20 and/or the first pipeline, and is configured to heat the gas flowing into the detection chamber 20.

Specifically, the heating device includes a first heating device, and the first heating device is arranged in the detection chamber 20 and is used for heating the gas in the detection chamber 20.

Optionally, the heating device further includes a second heating device, which is located in the first pipeline 201 and is capable of heating the gas flowing into the detection chamber 20 from the first pipeline 201.

Optionally, when the number of the first pipelines 201 is multiple, the multiple first pipelines 201 all partially pass through the freezing chamber 102, so that the gas in each first pipeline 201 can be subjected to freezing and dehumidifying.

Optionally, the heating means comprises a heating wire or block.

It should be noted that: the first pipeline 201 part of this application is located freezing chamber 102, and sets up heating device in detecting chamber 20, not only can use in the external scheme in detecting chamber 20, also can use in the technical scheme that detects chamber 20 and be located inner wall or wind channel among the correlation.

Optionally, the detection device for the refrigerator further includes a temperature measuring device and a controller, the temperature measuring device is disposed in the detection cavity 20, and the temperature measuring device is configured to detect the temperature in the detection cavity 20. The controller is electrically connected with the temperature measuring device, the detecting device and the heating device, and the controller is configured to control the heating device and the detecting device to work according to the temperature of the detection cavity 20.

In this embodiment, the temperature measuring device is used for detecting the temperature in the detection chamber 20, so that the temperature of the gas in the detection chamber 20 can be ensured to reach the target temperature. After the gas in the heating device heating detection cavity 20 reaches the target temperature, the temperature measuring device transmits the temperature information to the controller, and the controller controls the heating device to stop working, so that the intellectualization and the automation of detection of the detection device are improved.

Optionally, the thermometric means and the heating means cooperate to provide the same temperature of the gas being sensed each time in the sensing chamber 20.

Optionally, the separation membrane 303 is wrapped outside the sensor, so that, in a complex atmosphere, all/part of the non-target gas is filtered by the separation membrane and cannot contact the sensor, and only the target gas acts on the sensor, thereby improving the selectivity and accuracy of sensing detection.

Optionally, zero point correction is performed during outside air replacement, zero point correction data are acquired at intervals, the maximum value and the minimum value are removed, and averaging is performed, so that the influence caused by interval polluted gas such as oil smoke in a kitchen being used as replacement gas is avoided.

Optionally, the detection device for the refrigerator further comprises a waterproof breathable film, the waterproof breathable film is arranged at the outlet end of the second pipeline 202, the waterproof breathable film can seal the detection cavity, and detection of the detection equipment 50 due to water vapor is avoided.

Optionally, the outlet end of the second pipeline 202 is designed to be a sharp opening, so as to avoid the influence of condensed water.

Optionally, the detection apparatus for a refrigerator further includes a vibration-proof housing, which is disposed outside the detection device 50, and can reduce the influence of the vibration of the compressor 104 on the detection device 50.

Optionally, the shockproof housing comprises a sponge pad, a silica gel pad and the like.

Optionally, a controller is electrically connected to the first driving device 204, the second driving device 205 and the third driving device 206, and the controller can control the operations of the first driving device 204, the second driving device 205 and the third driving device 206 according to instructions.

In one embodiment, the detection apparatus for a refrigerator does not include the second pipeline 202, the first driving device 204 can continuously pump the gas to be detected in the refrigerator into the detection chamber 20, and the detection device 50 can continuously monitor the gas to be detected, so as to improve the detection sensitivity.

In another embodiment, the detection apparatus for a refrigerator further comprises an odor detection device 50 and a time acquisition device, and the controller controls the first driving device 204 to work periodically to draw the gas in the refrigerator into the detection chamber 20 for testing according to the preset time. After the test is finished, the third driving device 206 is controlled to work to discharge the refrigerator gas in the detection chamber 20, and then the second driving device 205 is controlled to work to suck in the external gas for full replacement. The interior of the test chamber 20 is then maintained in an external clean gas environment until the next test is initiated. Thus, by the intermittent operation, power consumption can be saved and noise can be reduced. The sensor is in a clean air environment for a long time, and the service life is prolonged. The sensor can carry out zero correction in clean air every time, and the detection accuracy is improved.

In another embodiment, when the user wants to test, the controller receives the user's instruction and controls the first driving device 204 to pump the refrigerator gas into the testing chamber 20 for testing. After the test is finished, the third driving device 206 is controlled to discharge the refrigerator gas in the detection chamber 20, and the second driving device 205 is controlled to draw in the external gas for sufficient replacement. The interior of the test chamber 20 is then maintained in an external clean gas environment until the next test is initiated. Therefore, the user can work when needed, the power consumption is saved, and the noise is low. The sensor is in a clean air environment for a long time, so that the service life is prolonged; the sensor can carry out zero correction in clean air every time, and the detection accuracy is improved.

The embodiment of the disclosure also provides a refrigerator, which comprises the detection device for the refrigerator in any one of the embodiments.

The refrigerator provided by the embodiment of the present disclosure includes the detection device for a refrigerator according to any one of the embodiments, and therefore, the beneficial effects of the detection device for a refrigerator according to any one of the embodiments are not described herein again.

It should be noted that: the detection device for the refrigerator provided by the embodiment of the disclosure can be applied to the refrigerator, and also can be applied to a refrigerator, an ice chest or other refrigeration equipment.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. The utility model provides a detection device for refrigerator, the refrigerator includes the box, the box is injectd and is held the chamber, it includes the freezer to hold the chamber, its characterized in that, a detection device for refrigerator includes:

a detection chamber;

the first pipeline is suitable for communicating the accommodating cavity with the detection cavity, and gas in the accommodating cavity can enter the detection cavity through the first pipeline;

the detection equipment is positioned in the detection cavity and used for detecting the target gas in the detection cavity;

wherein the first conduit is adapted to be partially located within the freezing chamber.

2. The detecting device for the refrigerator according to claim 1, further comprising:

and the heating device is arranged in the detection cavity and/or the first pipeline and is used for heating the gas flowing into the detection cavity.

3. The detecting device for the refrigerator according to claim 2, further comprising:

the temperature measuring device is arranged in the detection cavity and used for detecting the temperature in the detection cavity;

and the controller is electrically connected with the temperature measuring device, the detection device and the heating device, and is configured to control the heating device and the detection device to work according to the temperature of the detection cavity.

4. The detecting device for the refrigerator according to claim 1,

the detection cavity is suitable for being located on the outer side of the box body.

5. The detecting device for a refrigerator according to claim 4,

the refrigerator also comprises a compressor, a press cabin is further limited on the outer side of the refrigerator body, the compressor is located in the press cabin, and the detection cavity is suitable for being located in the press cabin.

6. The detecting device for the refrigerator according to claim 1,

when the number of the accommodating cavities is multiple, the first pipelines are suitable for being in the same number with the accommodating cavities and are in one-to-one correspondence, and the multiple first pipelines are communicated with one detection cavity;

wherein each of the first conduits is adapted to be partially located within the freezing chamber.

7. The detecting device for the refrigerator according to claim 1, further comprising:

the second pipeline is used for communicating the detection cavity with the outside and introducing outside air into the detection cavity;

and the third pipeline is used for discharging the air flow in the detection cavity to the outside.

8. The detecting device for the refrigerator according to claim 7, further comprising:

and the second driving device is communicated with the second pipeline and can drive the outside air to flow into the detection cavity through the second pipeline.

9. The detection apparatus for the refrigerator according to any one of claims 1 to 8, further comprising:

the first driving device is communicated with the first pipeline and can drive the airflow in the accommodating cavity to flow into the detection cavity through the first pipeline; and/or the presence of a gas in the atmosphere,

and the adsorption device is arranged in the first pipeline and/or the detection cavity and is used for adsorbing non-target gas in the gas to be detected.

10. A refrigerator characterized by comprising a detection device for a refrigerator according to any one of claims 1 to 9.

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