Embedded refrigerator

Abstract

The embodiment of the utility model provides an embedded refrigerator, belongs to the technical field of household appliances, and aims to solve the technical problem of poor heat dissipation effect in related technologies. The embedded refrigerator comprises a refrigerator body and a refrigerator door, wherein a containing cavity is formed in the rear side of the refrigerator body; the compressor is arranged in the accommodating cavity; the condenser is arranged in the containing cavity, and the condenser communicates with the compressor; an air inlet of the fan is communicated with the accommodating cavity; the draught fan is provided with an exhaust duct, the exhaust duct is provided with a first exhaust part and a second exhaust part, the first exhaust part is communicated with an air outlet of the draught fan, the second exhaust part is located above the first end of the exhaust duct, and the second exhaust part is located on the outer side of the containing cavity. According to the embedded refrigerator, hot air can be discharged upwards for heat dissipation, the hot air is prevented from being blown to the wall plate, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular to a built-in refrigerator. Background Art

[0002] A built-in refrigerator is a refrigerator designed to be embedded in a kitchen cabinet or other furniture. The side walls and rear side of the built-in refrigerator usually need to be close to the inner wall of the cabinet to save the installation space of the built-in refrigerator.

[0003] The built-in refrigerator also includes a compressor and a condenser. When the built-in refrigerator is in operation, the compressor and the condenser generate heat, which increases the temperature of the built-in refrigerator.

[0004] However, since the side walls and the rear side of the built-in refrigerator usually need to be close to the inner wall of the cabinet, the heat dissipation effect of the built-in refrigerator is poor, and the built-in refrigerator is prone to local overheating. Utility Model Content

[0005] The embodiment of the present application provides a built-in refrigerator, which can solve the technical problem of poor heat dissipation effect of the built-in refrigerator.

[0006] In a first aspect, an embodiment of the present application provides a built-in refrigerator, comprising a box body, wherein a accommodating cavity is provided at the rear side of the box body;

[0007] A compressor is disposed in the accommodating chamber;

[0008] A condenser is disposed in the accommodating cavity, and the condenser is connected to the compressor;

[0009] A fan, wherein an air inlet of the fan is connected to the accommodating cavity;

[0010] The fan is provided with an exhaust duct, which has a first exhaust part and a second exhaust part, the first exhaust part is connected to the air outlet of the fan, the second exhaust part is located above the first end of the exhaust duct, and the second exhaust part is located outside the accommodating cavity.

[0011] The built-in refrigerator in the embodiment of the present application is designed with an exhaust duct structure, and a first exhaust part is arranged at the air outlet of the fan to guide the hot air to the first exhaust part, and then through the second exhaust part located above the first exhaust part, the hot air is guided to the outside of the accommodating cavity, and finally discharged to the outside of the refrigerator, thereby guiding the hot air to be discharged upward, avoiding the hot air from rebounding at the wall panel, thereby improving the heat dissipation efficiency; and due to the siphon effect, that is, utilizing the narrow and long space formed between the refrigerator and the cabinet, the hot air is lighter and the effect of wind pressure, the hot air is accelerated to diffuse upward, the wind circulation is strengthened, the condensation temperature is reduced, thereby reducing the workload of the compressor, thereby reducing energy consumption and achieving energy-saving effects; because the design of the fan and the exhaust duct can effectively discharge hot air, the workload of the compressor is reduced, thereby reducing the working noise of the compressor.

[0012] In some embodiments of the present application, the exhaust duct is arranged above the accommodating cavity, and the second exhaust portion extends upward in a vertical direction.

[0013] In this arrangement, since the second exhaust part extends upward in the vertical direction, the hot air can be discharged from the top of the refrigerator smoothly through natural convection and the force of the fan, and the hot air can be discharged smoothly. The physical property of the hot air rising is utilized, and the retention of the hot air in a small space is reduced, thereby improving the heat dissipation efficiency;

[0014] Compared with the prior art where the wind direction is straight, it is easy to bounce back after hitting the wall in a narrow space, resulting in reduced heat dissipation efficiency. By setting a second vertical exhaust part, the hot air can be discharged directly upward, reducing the rebound phenomenon.

[0015] The exhaust duct is arranged above the accommodating cavity and extends in the vertical direction, which will not occupy the effective storage space inside the refrigerator. At the same time, this design will not have a significant impact on the appearance of the refrigerator. It is suitable for the use scenario of built-in refrigerators. Since the density of hot air is small, it is generally in the upper layer of the accommodating cavity. The exhaust duct above the accommodating cavity can accurately draw hot air.

[0016] In some embodiments of the present application, the box body is provided with a shielding plate, the shielding plate is fixedly connected to the rear shell of the box body, and the shielding plate blocks the accommodating cavity;

[0017] The shielding plate and the rear shell of the box body are provided with openings;

[0018] The exhaust duct is arranged in the opening, the first exhaust part is located in the accommodating cavity, the first exhaust part is communicated with the air outlet of the fan in the accommodating cavity, the second exhaust part is located outside the accommodating cavity, and the second exhaust part extends vertically upward.

[0019] In this way, the shielding plate isolates the storage cavity inside the refrigerator from the external environment, preventing hot air from escaping from the storage cavity and affecting the heat dissipation effect;

[0020] An opening is provided on the shielding plate and the rear shell of the box body for passing the exhaust duct, so as to facilitate the installation of the exhaust duct;

[0021] The first exhaust part is located in the accommodating cavity, and its function is to guide the hot air exhausted by the fan to the outside of the accommodating cavity; the second exhaust part is located outside the accommodating cavity, and its function is to guide the hot air to the top of the refrigerator, and the hot air is directly discharged to the outside of the refrigerator through the exhaust duct, thereby reducing the accumulation of heat inside the refrigerator.

[0022] In some embodiments of the present application, the first exhaust portion extends in a vertical direction, and with a horizontal plane as a cross-section, a cross-sectional area of ​​the first exhaust portion gradually decreases in a bottom-up direction.

[0023] The first air exhaust portion is designed to extend in the vertical direction, and such arrangement utilizes the principle of hot air rising to enhance the heat dissipation effect;

[0024] The cross-sectional area of ​​the first exhaust section gradually decreases from bottom to top. This arrangement helps to accelerate the air flow. Specifically, according to Bernoulli's principle, when the fluid flows through the contraction pipe, the flow rate will increase and the pressure will decrease. When the air enters the first exhaust section from the bottom, due to the large cross-sectional area, the air flow rate is low. As the air flows upward, the area of ​​the first exhaust section gradually decreases, and the air flow rate gradually increases, thereby effectively discharging the hot air and improving the heat dissipation efficiency. Among them, Bernoulli's principle means that for a fluid on a streamline, its total mechanical energy is constant when viscosity and compressibility are ignored. This means that there is a balance between the velocity, pressure and height of the fluid.

[0025] In some embodiments of the present application, the exhaust duct is provided with an exhaust cavity, and the second exhaust portion is fixedly connected to the rear shell of the box body.

[0026] The exhaust cavity is a part of the exhaust duct, which is used to collect and guide hot air. With such a configuration, the exhaust cavity can optimize the airflow path, more effectively collect and guide the hot air inside the refrigerator, reduce the resistance of air flow, and thus improve the exhaust efficiency;

[0027] The second exhaust part is fixedly connected to the rear shell of the refrigerator to ensure the stability of the exhaust duct inside the refrigerator, which can prevent the exhaust duct from shifting or loosening during operation, avoid airflow turbulence in the exhaust duct, and ensure the stability of the exhaust effect.

[0028] In some embodiments of the present application, the second air exhaust portion is protruded away from the rear shell; when the second air exhaust portion is fixedly connected to the rear shell of the box body, the second air exhaust portion and the rear shell of the box body together form an exhaust cavity.

[0029] The second exhaust portion is designed to protrude outward from the rear shell of the refrigerator. When the second exhaust portion is fixedly connected to the rear shell of the refrigerator, they together form a closed exhaust cavity. This arrangement can effectively guide hot air to be discharged along a predetermined path, avoid hot air rebounding and stagnation in a small space, and improve heat dissipation efficiency.

[0030] At the same time, the second exhaust part and the rear shell of the box body together form an exhaust cavity, avoiding the use of the entire pipeline to form the exhaust cavity, which not only saves material costs but also reduces the volume of the exhaust duct and increases the effective volume of the accommodating cavity.

[0031] In some embodiments of the present application, the fan is disposed on the upper inner wall of the accommodating cavity, and the air inlet of the fan faces the front side of the box body.

[0032] Since the density of hot air is small, it is generally located in the upper layer of the storage cavity. The fan is installed on the top inner wall of the storage cavity inside the refrigerator. With this arrangement, the exhaust duct above the storage cavity can accurately draw hot air, allowing the fan to more effectively utilize the top space for heat dissipation; at the same time, it will not occupy the effective storage space inside the refrigerator, so that the internal space of the refrigerator is more reasonably utilized, reducing the size of the refrigerator.

[0033] The fan's air inlet is oriented toward the front of the refrigerator, which makes it easier to draw in hot air from the front and expel it through the fan.

[0034] In some embodiments of the present application, the fan is configured as a centrifugal fan.

[0035] The centrifugal fan draws air from the air inlet through the rotating impeller, and discharges the air from the air outlet through centrifugal force. The air is accelerated and discharged in the radial direction (perpendicular to the impeller axis) under the action of the impeller. The centrifugal fan can draw air from the front of the refrigerator, and accelerate and discharge the air in the radial direction through centrifugal force. The centrifugal fan can generate a higher static pressure, so that the air can flow effectively, avoiding the rebound problem caused by the hot air blowing directly to the wall panel; the centrifugal fan has a compact design, which is suitable for the small installation environment of the built-in refrigerator. It can achieve efficient air flow and heat dissipation in a limited space; the centrifugal fan usually runs smoothly, with low noise and vibration, and is suitable for use in a home environment; the centrifugal fan has a variety of design forms, such as forward-inclined blades, backward-inclined blades and radial blades, etc., and the most suitable design can be selected according to specific needs.

[0036] In some embodiments of the present application, the fan is configured as a cross-flow fan.

[0037] Crossflow fans, also known as crossflow fans, use a long cylindrical impeller to draw air along the length of the impeller. The air forms a uniform airflow under the action of the impeller, and the air is discharged radially (perpendicular to the impeller axis) under the action of the impeller. Crossflow fans can produce uniform airflow, avoiding the problem of hot air rebounding to the wall panel; uniform airflow helps to discharge hot air more effectively; crossflow fans are compact in design, suitable for the narrow installation environment of built-in refrigerators, and can achieve efficient air flow and heat dissipation in a limited space; crossflow fans usually run smoothly, with low noise and vibration, suitable for home environments; crossflow fans have a simple structure and are easy to install and maintain; crossflow fans can work in different installation positions and directions, are highly adaptable, and can meet a variety of design requirements.

[0038] In a second aspect, an embodiment of the present application provides a built-in refrigerator, comprising: a box body, a compressor, a condenser and a fan;

[0039] The rear side of the box body is provided with a receiving chamber, and the receiving chamber receives the compressor and the condenser which are connected to each other;

[0040] The air inlet of the fan is connected to the accommodating cavity, and the fan is provided with an exhaust duct, through which the fan discharges the airflow in the accommodating cavity to the outside of the accommodating cavity;

[0041] The exhaust duct includes a first exhaust portion and a second exhaust portion, the first exhaust portion is connected to the air outlet of the fan, the second exhaust portion is located above the first exhaust portion, and the second exhaust portion is located outside the accommodating cavity, so that the airflow from the fan is discharged upward from the first exhaust portion toward the second exhaust portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0043] Figure 1 This is a schematic diagram of the structure inside the accommodating cavity of the built-in refrigerator in the embodiment of the present application;

[0044] Figure 2 This is a schematic diagram of the installation of a shielding plate in a built-in refrigerator according to an embodiment of the present application;

[0045] Figure 3 This is an exploded schematic diagram of the back and cabinet of the built-in refrigerator according to an embodiment of the present application;

[0046] Figure 4 This is a schematic diagram of the external structure of the accommodating cavity in the built-in refrigerator according to an embodiment of the present application;

[0047] Figure 5 A schematic diagram of the gap between the built-in refrigerator and the cabinet according to an embodiment of the present application;

[0048] Figure 6 for Figure 5 A magnified view of part A;

[0049] Figure 7 A schematic diagram of a fan in a built-in refrigerator according to an embodiment of the present application;

[0050] Figure 8 This is a schematic diagram of the installation of the fan in the built-in refrigerator from another perspective in the embodiment of the present application;

[0051] Fig. 9 This is a schematic diagram of the installation of a shielding plate in a built-in refrigerator according to an embodiment of the present application;

[0052] Fig.10 This is a schematic diagram of the installation of the compressor, condenser and fan in the built-in refrigerator according to the embodiment of the present application;

[0053] Fig.11 This is a schematic diagram of the exterior of a built-in refrigerator according to an embodiment of the present application;

[0054] Fig.12 This is a schematic diagram of the exterior of the built-in refrigerator of an embodiment of the present application from another angle.

[0055] Description of reference numerals:

[0056] 100, box body; 110, accommodating cavity; 120, shielding plate; 130, rear shell;

[0057] 200. Compressor;

[0058] 300, condenser;

[0059] 400, fan;

[0060] 500, exhaust duct; 510, first exhaust part; 520, second exhaust part. DETAILED DESCRIPTION

[0061] As described in the background technology, the condenser of the built-in refrigerator in the related art mostly uses an external condenser or a bottom-mounted condenser. At present, most of the bottom-mounted condensers are right-in and left-out, that is, the air enters from the right side of the rear of the refrigerator and exits from the left side. When the refrigerator is installed in the cabinet, the effect of the fan usually used will be greatly reduced, because the use scene of the built-in refrigerator is very small, and the ordinary fan will not change the direction of inhaling and exhausting hot air. Part of the hot air will be blown to the wall panel of the cabinet. After the hot air blows to the wall panel, it will rebound into the equipment chamber, and the heat dissipation efficiency will be greatly reduced.

[0062] In view of this, the built-in refrigerator in the embodiment of the present application designs an exhaust duct structure, and a first exhaust part is arranged at the air outlet of the fan to guide the hot air to the first exhaust part, and then through the second exhaust part located above the first exhaust part, the hot air is guided to the outside of the accommodating cavity, and finally discharged to the outside of the refrigerator, thereby guiding the hot air to be discharged upward, avoiding the hot air from rebounding at the wall panel, thereby improving the heat dissipation efficiency; and due to the siphon effect, that is, utilizing the narrow and long space formed between the refrigerator and the cabinet, the hot air is lighter and the effect of wind pressure, the hot air is accelerated to diffuse upward, the wind circulation is strengthened, the condensation temperature is reduced, thereby reducing the workload of the compressor, thereby reducing energy consumption and achieving energy-saving effects; because the design of the fan and the exhaust duct can effectively discharge hot air, the workload of the compressor is reduced, thereby reducing the working noise of the compressor.

[0063] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0064] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0065] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components explicitly listed but may include other components not explicitly listed or inherent to such products or devices.

[0066] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0070] Reference Figure 1-Figure 3 , Figure 7-Figure 9 , Figure 11-Figure 12 An embodiment of the present application provides a built-in refrigerator, including a box body 100 , and a accommodating cavity 110 may be provided on the rear side of the box body 100 .

[0071] It can be known that the box body 100 is the main structure of the refrigerator, which is used to store food and other items. The accommodating cavity 110 can be used to hold the relevant refrigeration working parts of the refrigerator, and also provide hot air discharge space for the heat dissipation of the relevant refrigeration working parts.

[0072] The built-in refrigerator further includes a compressor 200 disposed in the accommodating cavity 110 .

[0073] It should be understood that the compressor 200 is the core component of the refrigerator refrigeration system, and its main function is to compress the refrigerant and make it circulate, thereby achieving a refrigeration effect.

[0074] The built-in refrigerator further includes a condenser 300 disposed in the accommodating cavity 110 , and the condenser 300 may be in communication with the compressor 200 .

[0075] It should be understood that the condenser 300 is an important component in the refrigerator refrigeration system, and its main function is to cool and condense the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 200 into liquid refrigerant. The condenser 300 receives the high-temperature and high-pressure gaseous refrigerant from the compressor 200. These gaseous refrigerants are compressed in the compressor, and the temperature and pressure are significantly increased; when the high-temperature and high-pressure gaseous refrigerant flows in the pipe of the condenser 300, it exchanges heat with the surrounding air. The condenser 300 transfers the heat of the refrigerant to the surrounding air through the heat sink, so that the refrigerant is gradually cooled; as the temperature of the refrigerant decreases, the gaseous refrigerant gradually condenses into liquid refrigerant. This process is called condensation.

[0076] The built-in refrigerator further includes a fan 400 , and an air inlet of the fan 400 may be in communication with the accommodating cavity 110 .

[0077] It can be known that the hot air generated by the condenser 300 when cooling the refrigerant needs to be discharged to the outside of the accommodating chamber 110 . By using the fan 400 , the hot air can be efficiently guided out of the accommodating chamber 110 .

[0078] The fan 400 may be provided with an exhaust duct 500, and the exhaust duct 500 may have a first exhaust portion 510 and a second exhaust portion 520, the first exhaust portion 510 may be connected to the air outlet of the fan 400, the second exhaust portion 520 may be located above the first end of the exhaust duct 500, and the second exhaust portion 520 may be located outside the accommodating chamber 110.

[0079] In this way, by designing the structure of the exhaust duct 500, a first exhaust portion 510 is set at the air outlet of the fan 400, and the hot air is guided to the first exhaust portion 510 of the exhaust duct 500, and then through the second exhaust portion 520 located above the first exhaust portion 510, the hot air is guided to the outside of the accommodating cavity 110, and finally discharged to the outside of the refrigerator, thereby guiding the hot air to be discharged upward, avoiding the hot air from rebounding at the cabinet wall panel, thereby improving the heat dissipation efficiency; and due to the siphon effect, that is, utilizing the narrow space formed between the refrigerator and the cabinet, the hot air is lighter and the effect of wind pressure, the hot air is accelerated to diffuse upward, thereby strengthening the wind circulation, reducing the condensation temperature, thereby reducing the workload of the compressor 200, thereby reducing energy consumption and achieving energy-saving effects; because the design of the fan 400 and the exhaust duct 500 can effectively discharge hot air, reduce the workload of the compressor 200, thereby reducing the working noise of the compressor 200.

[0080] In some possible implementations, the exhaust duct 500 may be disposed above the accommodating cavity 110 .

[0081] The exhaust duct 500 is arranged above the accommodating cavity 110, which will not occupy the effective storage space inside the refrigerator. At the same time, this design will not have a significant impact on the appearance of the refrigerator. It is suitable for the use scenario of a built-in refrigerator. Since the density of hot air is small, it is generally in the upper layer of the accommodating cavity 110. The exhaust duct 500 above the accommodating cavity 110 can accurately draw hot air.

[0082] In some possible implementations, the second air exhaust portion 520 may extend upward in a vertical direction.

[0083] During use, a heat dissipation hole can be opened on the top of the cabinet, and the second exhaust part 520 extends to the corresponding heat dissipation hole on the top of the refrigerator to facilitate the second air duct 520 to discharge hot air.

[0084] Since the second exhaust part 520 extends upward in the vertical direction, the hot air can have a smoother heat dissipation path through natural convection and the force of the fan, and the hot air can be smoothly discharged from the top of the refrigerator. The physical property of the hot air rising is utilized, which reduces the retention of hot air in a small space, thereby improving the heat dissipation efficiency.

[0085] Compared with the prior art in which the wind direction is straight, it is easy for the hot air to bounce back after hitting the wall panel in a narrow space, resulting in reduced heat dissipation efficiency. By setting a second vertical exhaust part 520, the hot air can be discharged directly upward, reducing the rebound phenomenon.

[0086] refer to Figure 4 In some possible implementations, the box body 100 may be provided with a shielding plate 120 , the shielding plate 120 is fixedly connected to the rear shell 130 of the box body 100 , and the shielding plate 120 blocks the accommodating cavity 110 .

[0087] In some possible implementations, the shielding plate 120 is fixedly connected to the rear shell 130 of the box body by a fixing device, so as to ensure that the shielding plate 120 will not loosen or shift during use.

[0088] Exemplarily, the fixing device may be a screw, and the screw is used to pass through the shielding plate 120 and the rear shell 130 to fix the shielding plate 120 and the rear shell 130 of the box body 100 together.

[0089] In some possible implementations, the fixing device may also be a buckle, and the buckle is used to fix the shielding plate 120 and the rear shell 130 of the box body 100 together.

[0090] It should be noted that as long as the fixing device can fix the shielding plate 120 and the rear shell 130 of the box body 100 together, the present application does not impose too many restrictions on the specific structure of the fixing device.

[0091] In some possible embodiments, a sealing gasket is provided between the shielding plate 120 and the rear shell 130 . By using the sealing gasket, the sealing between the shielding plate 120 and the rear shell 130 is improved to prevent hot air from escaping.

[0092] In this way, the shielding plate 120 isolates the accommodating cavity 110 inside the refrigerator from the external environment, preventing hot air from escaping from the accommodating cavity and avoiding affecting the heat dissipation effect.

[0093] refer to Figure 2 , Figure 5-Figure 6 In some possible implementations, the shielding plate 120 and the rear shell 130 of the box body 100 are provided with openings, and the openings are used for the exhaust duct 500 to pass through, so as to facilitate the installation of the exhaust duct 500.

[0094] The exhaust duct 500 is arranged in the opening, the first exhaust part 510 is located in the accommodating cavity 110, the first exhaust part 510 is connected with the air outlet of the fan 400 in the accommodating cavity 110, and the second exhaust part 520 is located outside the accommodating cavity 110, and the second exhaust part 520 extends vertically upward.

[0095] The first exhaust portion 510 is located inside the accommodating cavity 110, and the function of the first exhaust portion 510 is to guide the hot air exhausted by the fan 400 to the outside of the accommodating cavity 110; the second exhaust portion 520 is located outside the accommodating cavity 110, and the function of the second exhaust portion 520 is to guide the hot air to the top of the refrigerator, and the hot air is directly discharged to the outside of the refrigerator through the exhaust duct 500, thereby reducing the accumulation of heat inside the refrigerator.

[0096] refer to Fig.10 In some possible embodiments, the first exhaust portion 510 extends in a vertical direction, and with a horizontal plane as a cross-section, a cross-sectional area of ​​the first exhaust portion 510 gradually decreases in a bottom-up direction.

[0097] It can be understood that, in some possible embodiments, the first air exhaust portion 510 is an air outlet of the fan 400 .

[0098] The first air exhaust portion 510 is designed to extend in the vertical direction. This arrangement utilizes the principle that hot air rises to enhance the heat dissipation effect.

[0099] It can be known that the cross-sectional area of ​​the first exhaust portion 510 gradually decreases from bottom to top, and such a configuration helps to accelerate the air flow. Specifically, according to Bernoulli's principle, when a fluid flows through a contraction pipe, the flow velocity will increase and the pressure will decrease. When air enters the first exhaust portion 510 from the bottom, the air flow velocity is low due to the large cross-sectional area. As the air flows upward, the cross-sectional area of ​​the first exhaust portion 510 gradually decreases and the air flow velocity gradually increases, thereby effectively discharging hot air and improving heat dissipation efficiency.

[0100] Among them, the Noonely principle states that for a fluid on a streamline, its total mechanical energy is constant when viscosity and compressibility are ignored. This means that there is a balance between the velocity, pressure and height of the fluid. When the fluid velocity increases, the dynamic pressure increases, and in order to maintain the conservation of total energy, the static pressure must decrease. Conversely, when the fluid velocity decreases, the dynamic pressure decreases and the static pressure increases.

[0101] In some possible implementations, the exhaust duct 500 may be provided with an exhaust cavity, and the second exhaust portion 520 may be fixedly connected to the rear shell 130 of the box body 100 .

[0102] During use, hot air passes through the exhaust cavity composed of the first exhaust part 510 and the second exhaust part 520, and is discharged from the top of the refrigerator along the vertical direction of the refrigerator. A heat dissipation hole can be opened on the top of the refrigerator to release the hot air.

[0103] The exhaust cavity is a part of the exhaust duct 500, which is used to collect and guide hot air. With such a configuration, the exhaust cavity can optimize the airflow path, can more effectively collect and guide the hot air inside the refrigerator, reduce the resistance to air flow, and thus improve the exhaust efficiency.

[0104] The second exhaust part 520 is fixedly connected to the rear shell 130 of the refrigerator to ensure the stability of the exhaust duct 500 inside the refrigerator, thereby preventing the exhaust duct 500 from shifting or loosening during operation, avoiding turbulence of the airflow in the exhaust duct 500, and ensuring the stability of the exhaust effect.

[0105] Exemplarily, the second exhaust part 520 is installed on the rear shell 130 of the refrigerator through a clamp, which ensures that the second exhaust part 520 is stably installed on the rear shell 130, and the installation method is simple. The clamp can also adapt to second exhaust parts 520 of different diameters, facilitating adaptive installation of second exhaust parts 520 of different models.

[0106] In some possible embodiments, a slot can be designed on the rear shell 130, and a corresponding protrusion can be designed on the second exhaust part 520, and fixation can be achieved by insertion and clamping. It should be noted that as long as the second exhaust part 520 can be fixedly connected to the rear shell 130 of the box body 100, the present application does not impose too many restrictions on the fixing method.

[0107] In some possible embodiments, the second exhaust portion 520 may be arranged to protrude away from the rear shell 130; when the second exhaust portion 520 is fixedly connected to the rear shell 130 of the box body 100, the second exhaust portion 520 may form an exhaust cavity together with the rear shell 130 of the box body 100.

[0108] During use, hot air passes through the exhaust cavity composed of the first exhaust part 510 and the second exhaust part 520, and is discharged from the top of the refrigerator along the vertical direction of the refrigerator. A heat dissipation hole can be opened on the top of the refrigerator to release the hot air.

[0109] It can be understood that the second exhaust portion 520 is designed to protrude outward from the rear shell 130 of the refrigerator. When the second exhaust portion 520 is fixedly connected to the rear shell 130 of the refrigerator, they together form a closed exhaust cavity. Such a configuration can effectively guide the hot air to be discharged along a predetermined path, avoid the hot air from rebounding and stagnating in a small space, and improve the heat dissipation efficiency.

[0110] At the same time, the second exhaust part 520 and the rear shell 130 of the box body together form an exhaust cavity. Compared with using the entire pipeline to form the exhaust cavity, it not only saves material costs, but also reduces the volume of the exhaust duct 500 and increases the effective volume of the accommodating cavity.

[0111] In some possible embodiments, the second air exhaust portion 520 and the box rear shell 130 have a sealing gasket to improve the sealing between the second air exhaust portion 520 and the box rear shell 130 and prevent hot air from escaping from the connection between the second air exhaust portion 520 and the box rear shell 130.

[0112] In some possible embodiments, the fan 400 may be disposed on the upper inner wall of the accommodating chamber 110 .

[0113] Since the density of hot air is small, it is generally in the upper layer of the accommodating cavity 110. The fan 400 is installed on the top inner wall of the accommodating cavity 110 inside the refrigerator. With this arrangement, the exhaust duct 500 above the accommodating cavity 110 can accurately draw hot air, so that the fan 400 can more effectively utilize the top space for heat dissipation; at the same time, it will not occupy the effective storage space inside the refrigerator, so that the internal space of the refrigerator is more reasonably utilized, reducing the size of the refrigerator.

[0114] In some possible embodiments, the air inlet of the fan 400 may face the front side of the box body 100 .

[0115] When the refrigerator is working, it first receives the high-temperature and high-pressure gaseous refrigerant from the compressor 200 through the condenser 300, and the gaseous refrigerant is compressed into high-temperature and high-pressure gaseous refrigerant in the compressor; the high-temperature and high-pressure gaseous refrigerant exchanges heat with the surrounding air in the condenser 300, and the air inlet of the fan 400 can be facing the front side of the box body 100, so that it is better aligned with the direction in which the hot air is generated, and the hot air on the front side can be more easily sucked in and discharged through the fan 400.

[0116] In some possible embodiments, the fan 400 may be configured as a centrifugal fan.

[0117] Centrifugal fans can effectively enhance air circulation through their unique working principle.

[0118] Unlike ordinary axial flow fans, centrifugal fans can draw air from the air inlet and discharge it along the circumference of the fan through centrifugal force. This method can more effectively discharge hot air from the bottom of the refrigerator, avoid hot air accumulation in the narrow space between the refrigerator and the cabinet, and thus improve heat dissipation efficiency.

[0119] The design of the centrifugal fan enables it to work under high pressure and is suitable for use in a small space. The centrifugal fan can effectively reduce the operating temperature of the condenser. The reduction in condensation temperature not only helps to improve the refrigeration efficiency of the refrigerator, but also extends the service life of the compressor 200 and reduces the failure rate. Since the centrifugal fan can discharge hot air more efficiently, the overall energy consumption of the refrigerator can be significantly reduced. When the condenser 300 works at a lower temperature, the workload of the compressor 200 will also be reduced, thereby achieving the effect of energy saving and consumption reduction. The centrifugal fan has a lower noise level. Compared with the traditional axial flow fan, the centrifugal fan can maintain a lower noise level while working efficiently, and the built-in refrigerator is more suitable for use in a home environment. The centrifugal fan has a compact structure and is suitable for installation in the accommodating cavity 110 at the rear of the refrigerator.

[0120] In some possible embodiments, the fan 400 may be configured as a cross-flow fan.

[0121] The main feature of a cross-flow fan is that the airflow flows laterally inside the fan impeller instead of flowing axially, which allows the fan 400 to exhaust the hot air from the top of the refrigerator in a vertical direction after extracting hot air from the accommodating cavity 110. A cross-flow fan can produce a uniform airflow distribution, which helps to dissipate heat more evenly. For built-in refrigerators, the uniform airflow can effectively remove heat from around the condenser 300 and the compressor 200 to avoid local overheating and affect the working efficiency of the refrigerator. Cross-flow fans usually run smoothly and have low noise, which is suitable for use in home environments and improves the user experience. Cross-flow fans can be installed in different positions and directions, which makes the design more flexible. The installation position and direction of the cross-flow fan can be flexibly adjusted according to specific heat dissipation requirements and space limitations to achieve the best heat dissipation effect. A cross-flow fan can provide a strong and stable airflow, which helps to enhance the air circulation inside and around the refrigerator, and can effectively reduce the condensation temperature to achieve energy saving.

[0122] An embodiment of the present application provides a built-in refrigerator, including a housing 100 , a compressor 200 , a condenser 300 and a fan 400 .

[0123] The rear side of the housing 100 is provided with a receiving chamber 110 , and the receiving chamber 110 receives the compressor 200 and the condenser 300 which are in communication with each other.

[0124] The air inlet of the fan 400 is in communication with the accommodating chamber 110 , and the fan 400 is provided with an exhaust duct 500 . The fan 400 discharges the airflow in the accommodating chamber 110 to the outside of the accommodating chamber 110 through the exhaust duct 500 .

[0125] The exhaust duct 500 includes a first exhaust portion 510 and a second exhaust portion 520. The first exhaust portion 510 is connected to the air outlet of the fan 400, and the second exhaust portion 520 is located above the first exhaust portion 510. The second exhaust portion 520 is located outside the accommodating cavity 110 so that the airflow from the fan 400 is discharged upward from the first exhaust portion 510 toward the second exhaust portion 520.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0127] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A built-in refrigerator, characterized in that: include: A box body (100), wherein a receiving cavity (110) is provided at the rear side of the box body (100); A compressor (200) is disposed in the accommodating chamber (110); A condenser (300) is disposed in the accommodating chamber (110), and the condenser (300) is in communication with the compressor (200); A fan (400), wherein an air inlet of the fan (400) is in communication with the accommodating chamber (110); The fan (400) is provided with an exhaust duct (500), and the exhaust duct (500) has a first exhaust portion (510) and a second exhaust portion (520), the first exhaust portion (510) is connected to the air outlet of the fan (400), and the second exhaust portion (520) is located above the first end of the exhaust duct (500), and the second exhaust portion (520) is located outside the accommodating cavity (110).

2. The built-in refrigerator according to claim 1, characterized in that: The exhaust duct (500) is arranged above the accommodating chamber (110), and the second exhaust portion (520) extends upward in a vertical direction.

3. The built-in refrigerator according to claim 2, characterized in that: The box body (100) is provided with a shielding plate (120), the shielding plate (120) is fixedly connected to the rear shell (130) of the box body (100), and the shielding plate (120) blocks the accommodating cavity (110); The shielding plate (120) and the rear shell (130) of the box body (100) are provided with openings; The exhaust duct (500) is arranged in the opening, the first exhaust portion (510) is located in the accommodating cavity (110), the first exhaust portion (510) is connected to the air outlet of the fan (400) in the accommodating cavity (110), and the second exhaust portion (520) is located outside the accommodating cavity (110), and the second exhaust portion (520) extends vertically upward.

4. The built-in refrigerator according to claim 3, characterized in that: The second air exhaust portion (520) extends in a vertical direction, and with a horizontal plane as a cross section, the cross-sectional area of ​​the first air exhaust portion (510) gradually decreases in a direction from bottom to top.

5. The built-in refrigerator according to claim 3, characterized in that: The exhaust duct (500) is provided with an exhaust cavity, and the second exhaust portion (520) is fixedly connected to the rear shell (130) of the box body (100).

6. The built-in refrigerator according to claim 3, characterized in that: The second air exhaust portion (520) is arranged to protrude away from the rear shell (130); when the second air exhaust portion (520) is fixedly connected to the rear shell (130) of the box body (100), the second air exhaust portion (520) and the rear shell (130) of the box body (100) together form an air exhaust cavity.

7. The built-in refrigerator according to claim 1, characterized in that: The fan (400) is arranged on the upper inner wall of the accommodating cavity (110), and the air inlet of the fan (400) faces the front side of the box body (100).

8. The built-in refrigerator according to any one of claims 1 to 7, characterized in that: The fan (400) is configured as a centrifugal fan.

9. The built-in refrigerator according to any one of claims 1 to 7, characterized in that: The fan (400) is configured as a cross-flow fan.

10. A built-in refrigerator, characterized in that: It comprises a housing (100), a compressor (200), a condenser (300) and a fan (400); The rear side of the housing (100) is provided with a receiving chamber (110), and the receiving chamber (110) receives the compressor (200) and the condenser (300) which are in communication with each other; The air inlet of the fan (400) is in communication with the accommodating chamber (110), and the fan (400) is provided with an exhaust duct (500), and the fan (400) discharges the airflow in the accommodating chamber (110) to the outside of the accommodating chamber (110) through the exhaust duct (500); The exhaust duct (500) comprises a first exhaust portion (510) and a second exhaust portion (520), wherein the first exhaust portion (510) is connected to an air outlet of the fan (400), and the second exhaust portion (520) is located above the first exhaust portion (510). The second exhaust portion (520) is located outside the accommodating cavity (110) so that the airflow from the fan (400) is discharged upward from the first exhaust portion (510) toward the second exhaust portion (520).

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