Integrated range hood system

Abstract

The invention relates to the technical field of kitchen appliances, in particular to an integrated range hood system. According to the integrated extractor hood system, a heat exchange cavity of a shell comprises a first area and a second area which are independent of each other, a phase change evaporator is arranged in the first area, and a phase change condenser is arranged in the second area; the oil smoke suction channel of the shell is located in the first area and does not communicate with the heat exchange cavity, and in the height direction of the shell, the phase change condenser is higher than the phase change evaporator; the air conditioner further comprises a flow guide plate arranged in the second area, the flow guide plate is arranged on an airflow flowing path between the fresh air inlet of the shell and the air supply outlet of the shell, and the flow guide plate is located on the downstream of the phase change condenser in the flowing direction of fluid. The airflow smoothness and uniformity are improved by adjusting the airflow direction, and therefore the heat recovery efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an integrated range hood system. Background Art

[0002] Usually, there is no fresh air system in the kitchen. The main limitation is that when cooking in winter, the outdoor temperature is lower than the indoor temperature. Directly introducing outdoor air will cause the indoor temperature to drop, causing human discomfort. Kitchen air conditioners with fresh air function need to add electric auxiliary heating to heat the fresh air, which consumes a lot of energy.

[0003] A phase-change heat exchange component is used, including an evaporator, a condenser, and a circulation pipe connected between the evaporator and the condenser, with a height difference between the evaporator and the condenser; the refrigerant is converted from liquid to gas in the evaporator, the density of the refrigerant is reduced, and it enters the condenser through the circulation pipe; the refrigerant is converted from gas to liquid in the condenser to release heat, thereby heating the surrounding air. At the same time, the density of the refrigerant increases and enters the evaporator through the circulation pipe, and the cycle continues. The phase-change heat exchange component uses the heat of the gas in the exhaust pipe to heat the fresh air and recycle the waste heat of the gas, thereby reducing power consumption and being environmentally friendly.

[0004] The problem is that after the fresh air enters the integrated range hood system that uses the above-mentioned phase change heat exchange component to heat the fresh air, the fresh air flow effect is poor, resulting in poor fresh air heat exchange efficiency. Summary of the invention

[0005] The object of the present invention is to provide an integrated range hood system to solve, to a certain extent, the technical problem in the related art that the fresh air flow circulation effect is poor, thereby resulting in poor fresh air heat exchange efficiency.

[0006] The present invention provides an integrated range hood system, comprising: a shell body, having an oil fume suction channel, the shell body is provided with an oil fume inlet and an oil fume outlet, the oil fume inlet and the oil fume outlet are both in fluid communication with the oil fume suction channel; the shell body is also provided with a heat exchange chamber, the shell body is provided with a fresh air inlet for communicating with the outdoors and an air supply outlet for communicating with the indoors, the fresh air inlet and the air supply outlet are both in fluid communication with the heat exchange chamber; the heat exchange chamber comprises a first area and a second area independent of each other, a phase change evaporator is arranged in the first area, and a phase change condenser is arranged in the second area; the oil fume suction channel is located in the first area and is not in communication with the heat exchange chamber, and in the height direction of the shell body, the phase change condenser is higher than the phase change evaporator; and further comprising: a guide plate, which is arranged in the second area, the guide plate is arranged on the airflow path between the fresh air inlet and the air supply outlet, and, along the flow direction of the fluid, the guide plate is located downstream of the phase change condenser.

[0007] Furthermore, the air supply port is opened on the front side of the shell, and the fresh air inlet is opened on the top of the shell; an air supply fan is also arranged in the heat exchange chamber, and the air outlet end of the air supply fan is connected with the air supply port; the guide plate extends forward and backward, and the rear end of the guide plate is the windward end, and the front end of the guide plate is opposite to the air inlet end of the air supply fan.

[0008] Furthermore, the phase change condenser is arranged adjacent to the fresh air inlet, and the guide plate is at least partially located under the phase change condenser.

[0009] Furthermore, the windward surface of the phase change condenser is arranged directly opposite to the fresh air inlet, and the projection of the phase change condenser on the plane where the fresh air inlet is located can cover the fresh air inlet.

[0010] Furthermore, the guide plate is in an arc-shaped structure with two ends bent toward the same side, and the guide plate as a whole is inclined forward from top to bottom.

[0011] As an optional solution, in the thickness direction of the shell, the rear end of the guide plate is opposite to the rear side of the phase change condenser.

[0012] As another optional solution, in the thickness direction of the shell, the rear end of the guide plate is opposite to the middle of the phase change condenser to form a flow channel on the front and rear sides of the guide plate respectively; the guide plate is arranged in a flat shape.

[0013] Furthermore, the integrated range hood system further includes: a circulation duct, which is arranged in the heat exchange cavity, and the interior of the circulation duct is hollow to form the range hood suction channel.

[0014] Furthermore, a first flow cavity and a second flow cavity independent of each other are provided in the guide plate, and both the first flow cavity and the second flow cavity are connected between the phase change evaporator and the phase change condenser to realize the circulation of the refrigerant between the phase change evaporator and the phase change condenser.

[0015] Further, in the thickness direction of the guide plate, the first flow cavity and the second flow cavity are arranged side by side.

[0016] Furthermore, the ratio of the thickness of the first circulation cavity to the thickness of the second circulation cavity is in the range of 4:3-2:1.

[0017] Furthermore, in the thickness direction of the guide plate, fins are provided at least on the front side plate surface of the guide plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0019] The guide plate can guide the flow of fresh air and direct it to the air outlet in a concentrated manner, so that the fresh air enters the room through the air outlet in a certain flow direction, avoiding the fresh air from being scattered and disordered. By adjusting the airflow direction, more efficient air circulation and distribution can be achieved, and the smoothness and uniformity of the airflow can be improved, thereby improving the heat recovery efficiency, and then improving the heat exchange effect, avoiding a large difference between the temperature of the gas entering the room and the indoor temperature, and improving the user experience. In addition, the shape and setting position of the guide plate can be used to control the airflow speed and adjust the flow rate of the fresh air to avoid too fast or too slow wind speed; the guide plate can optimize the airflow and reduce noise.

[0020] The oil fume suction channel is arranged in the first area, and the oil fume in the kitchen can enter the shell through the oil fume inlet, then enter the oil fume suction channel, and finally be discharged into the kitchen oil fume channel hole through the oil fume outlet. The temperature of the oil fume is relatively high, and the heat can be transferred to the air in the first area to increase the temperature of this part of the air. The temperature difference between the heated air and the refrigerant in the evaporator is larger, so that the phase change of the refrigerant in the evaporator can be faster, the heat exchange efficiency of the evaporator is improved, and the circulation of the refrigerant is accelerated, and the heat exchange efficiency of the condenser is improved, and the heat exchange efficiency of the fresh air is improved, so that the heating effect of the fresh air is better. In addition, the residual heat of the oil fume is also utilized and recycled to save energy.

[0021] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an integrated range hood system from one perspective according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A structural schematic diagram of the integrated range hood system from another perspective shown;

[0025] Figure 3 A schematic structural diagram of an integrated range hood system according to another embodiment of the present invention;

[0026] Figure 4A partial structural schematic diagram of an integrated range hood system according to an embodiment of the present invention;

[0027] Figure 5 Another partial structural schematic diagram of the integrated range hood system in an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the guide plate in the integrated range hood system according to an embodiment of the present invention.

[0029] icon:

[0030] 1-shell; 11-smoke exhaust chamber; 12-first area; 13-second area; 14-fresh air inlet;

[0031] 2-Phase change evaporator;

[0032] 3-Phase change condenser;

[0033] 4- guide plate; 41- windward end; 42- first flow cavity; 43- second flow cavity; 44- fin; 45- front side plate surface; 46- rear side plate surface; 47- filling port;

[0034] 5- air supply fan;

[0035] 6-Circulation pipeline. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, 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 the present invention can be understood according to specific circumstances.

[0041] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] It should be noted that the “front” described in the embodiment of the present invention refers to the direction close to the room, and the “rear” is the direction opposite to the “front”.

[0043] like Figures 1 to 6 As shown, the present invention provides an integrated range hood system, comprising: a shell 1, having an oil fume suction channel, an oil fume inlet and an oil fume outlet are provided on the shell 1, and the oil fume inlet and the oil fume outlet are both in fluid communication with the oil fume suction channel; the shell 1 also has a heat exchange chamber inside, a fresh air inlet 14 for communicating with the outdoors and an air supply outlet for communicating with the indoors are provided on the shell 1, and the fresh air inlet 14 and the air supply outlet are both in fluid communication with the heat exchange chamber; the heat exchange chamber comprises a first area 12 and a second area 13 which are independent of each other, a phase change evaporator 2 is provided in the first area 12, and a phase change condenser 3 is provided in the second area 13; the oil fume suction channel is located in the first area 12 and is not in communication with the heat exchange chamber, and in the height direction of the shell 1, the phase change condenser 3 is higher than the phase change evaporator 2; and further comprising: a guide plate 4, which is provided in the second area 13, and the guide plate 4 is arranged on the air flow path between the fresh air inlet 14 and the air supply outlet, and, along the flow direction of the fluid, the guide plate 4 is located downstream of the phase change condenser 3.

[0044] In this embodiment, the outdoor fresh air can enter the second area 13 of the heat exchange chamber through the fresh air inlet 14, and the fresh air can pass through the phase change condenser 3 to exchange heat with the refrigerant in the phase change condenser 3. The refrigerant releases heat and converts from gas to liquid to flow to the phase change evaporator 2. The fresh air is heated and flows downstream. The guide plate 4 can guide the flow of the fresh air and guide the fresh air to the air outlet in a concentrated manner, so that the fresh air enters the room through the air outlet in a certain flow direction to avoid the fresh air being scattered and disordered. By adjusting the airflow direction, more efficient air circulation and distribution can be achieved, and the smoothness and uniformity of the airflow can be improved, thereby improving the heat recovery efficiency, and then improving the heat exchange effect, avoiding a large difference between the temperature of the gas entering the room and the indoor temperature, and improving the user experience. In addition, the shape and setting position of the guide plate 4 can control the airflow speed and adjust the flow rate of the fresh air to avoid too fast or too slow wind speed; the guide plate 4 can optimize the airflow flow and reduce noise generation.

[0045] The liquid refrigerant enters the phase change evaporator 2 in the first area 12, and the refrigerant in the phase change evaporator 2 exchanges heat with the air in the first area 12. The liquid refrigerant absorbs heat in the evaporator and is converted into a gaseous state. The gaseous refrigerant flows to the phase change condenser 3, and the cycle continues.

[0046] The oil fume suction channel is arranged in the first area 12, and the oil fume in the kitchen can enter the shell through the oil fume inlet, then enter the oil fume suction channel, and finally be discharged into the kitchen oil fume channel hole through the oil fume outlet. The temperature of the oil fume is relatively high, and the heat can be transferred to the air in the first area 12 to increase the temperature of this part of the air. The temperature difference between the heated air and the refrigerant in the phase change evaporator 2 is larger, so that the phase change of the refrigerant in the phase change evaporator 2 can be faster, and the heat exchange efficiency of the phase change evaporator 2 can be improved, thereby accelerating the circulation of the refrigerant, thereby improving the heat exchange efficiency of the phase change condenser 3, and thereby improving the heat exchange efficiency of the fresh air, so that the heating effect of the fresh air is better. In addition, the residual heat of the oil fume is also utilized and recycled to save energy.

[0047] It should be noted that the conventional air conditioning system realizes the circulation of refrigerant through compressors and throttling devices, etc. The integrated range hood system provided in the present application realizes the circulation of refrigerant through the pressure difference generated by the phase change of the refrigerant, and the pressure difference generated by the refrigerant physical state switching is small, so there is a height difference between the phase change evaporator 2 and the phase change condenser 3, which can promote the circulation of the refrigerant and complete the heat transfer between the phase change condenser 3 and the phase change evaporator 2.

[0048] Specifically, the upper portion of the shell 1 has a heat exchange chamber, the lower portion of the shell 1 has a smoke exhaust chamber 11 , the lower front side of the shell 1 has an oil fume inlet, and the top of the shell 1 may have an oil fume outlet.

[0049] A first partition may be provided in the shell 1 to separate the inner cavity of the shell 1 into a lower smoke exhaust cavity 11 and an upper heat exchange cavity, and a second partition may be provided in the heat exchange cavity to separate the heat exchange cavity into a mutually independent first region 12 and a second region 13. Alternatively, the shell 1 includes an upper shell and a lower shell connected to each other, the inner cavity of the upper shell forms the heat exchange cavity, the inner cavity of the lower shell forms the smoke exhaust cavity 11, and a partition may be provided in the inner cavity of the upper shell to separate the inner cavity into the first region 12 and the second region 13.

[0050] A panel may be provided in the first area 12, and a passage may be enclosed by the panel to form an oil fume suction passage. Figure 1 As shown, the integrated range hood system also includes: a circulation pipe 6, which is arranged in the heat exchange cavity. The circulation pipe 6 is hollow inside to form a fume suction channel. The circulation pipe 6 is arranged to facilitate assembly. One end of the circulation pipe 6 is connected to the fume inlet, and the other end is connected to the fume outlet.

[0051] like Figure 2 and Figure 3 As shown, on the basis of the above embodiment, further, an air supply port is opened at the front side of the shell 1 (optionally, the air supply port is arranged at the upper part of the shell 1), and a fresh air inlet 14 is opened at the top of the shell 1, so as to facilitate an external pipe to communicate with the outdoors, and the new air inlet is arranged at the top of the shell 1, and the external pipe can be arranged at the top of the shell 1 to avoid occupying the thickness space or width space of the integrated range hood system; an air supply fan 5 is also arranged in the heat exchange chamber, and the air outlet end of the air supply fan 5 is connected to the air supply port; the guide plate 4 extends forward and backward, and the rear end of the guide plate 4 is the windward end 41, and the front end of the guide plate 4 is opposite to the air inlet end of the air supply fan 5.

[0052] In this embodiment, an air supply fan 5 is arranged in the heat exchange chamber, and the air supply fan 5 can suck the outdoor fresh air into the second area 13, and send the fresh air after heat exchange into the room, and the air supply fan 5 provides power for the circulation of the fresh air. The front end of the guide plate 4 is opposite to the air inlet end of the air supply fan 5, so the guide plate 4 can directly guide the fresh air to the air supply fan 5, and the air supply fan 5 can send the fresh air into the room faster, thereby improving the indoor air quality adjustment efficiency.

[0053] The phase change condenser 3 may be disposed at a plurality of positions within the first region 12 , as long as the phase change condenser 3 is disposed higher than the phase change evaporator 2 .

[0054] As an alternative, Figure 2 and Figure 3 As shown, the phase change condenser 3 is arranged adjacent to the fresh air inlet 14 , and the guide plate 4 is at least partially located under the phase change condenser 3 .

[0055] In this embodiment, the phase change condenser 3 is arranged adjacent to the fresh air inlet 14. After the fresh air enters the second area 13 from the fresh air inlet 14, it will pass through the phase change condenser 3 faster, exchange heat faster, and is conducive to more fresh air passing through the phase change condenser 3, and more fresh air is heated. At least part of the guide plate 4 is located under the phase change condenser 3, so that the fresh air after heat exchange can reach the guide plate 4 faster and be guided by the guide plate 4.

[0056] Part of the guide plate 4 may be arranged below the phase change condenser 3 , or the entire guide plate 4 may be arranged below the phase change condenser 3 .

[0057] A part of the windward surface of the phase change condenser 3 may be arranged to be directly opposite to the fresh air inlet 14 .

[0058] As an alternative, Figure 2 and Figure 3 As shown, the windward surface of the phase change condenser 3 is arranged opposite to the fresh air inlet 14 , and the projection of the phase change condenser 3 on the plane where the fresh air inlet 14 is located can cover the fresh air inlet 14 .

[0059] In this embodiment, the windward surface of the phase change condenser 3 is arranged directly opposite to the fresh air inlet 14. It can be understood that the phase change condenser 3 is arranged directly below the fresh air inlet 14 and can be arranged close to the wall of the shell 1. With such a setting, the fresh air can immediately and completely pass through the phase change condenser 3 after passing through the fresh air inlet 14, so that all the fresh air can be heated by heat exchange, thereby improving the heat exchange efficiency.

[0060] On the basis of any of the above embodiments, further, the guide plate 4 can be a straight plate, the straight plate is arranged to be inclined relative to the vertical, the rear end of the straight plate is located below the phase change condenser 3, and the front end of the straight plate extends to the air supply fan 5. It should be noted that the straight plate refers to the side profile of the guide plate 4 being a straight line, and the plate surface of the guide plate 4 (the two surfaces located between the two side surfaces) can be wavy, serrated, etc.

[0061] As an alternative, Figures 1 to 6 As shown, the guide plate 4 as a whole is an arc-shaped structure with both ends bent toward the same side, and the guide plate 4 as a whole is inclined forward from top to bottom (for example: when at least a part of the guide plate 4 is located in the phase change condenser 3, the guide plate 4 is set in an arc shape convexly away from the phase change condenser 3). The guide plate 4 is set in an arc shape (the side profile of the guide plate 4 and the plate surface of the guide plate 4 are both set in an arc shape), which can make the fresh air circulation smoother and can better adjust the flow speed of the fresh air, further improve the smoothness and uniformity of the airflow, thereby further improving the heat recovery efficiency.

[0062] like Figure 2As shown, based on any of the above embodiments, as an optional scheme, in the thickness direction of the shell 1, the rear end of the guide plate 4 (that is, the windward end 41) is opposite to the rear side of the phase change condenser 3. In this embodiment, after the fresh air reaches the guide plate 4, it is guided through the front side panel 45 (which can also be understood as the upper side panel) of the guide plate 4.

[0063] like Figure 3 As shown, based on any of the above embodiments, as an optional scheme, in the thickness direction of the shell 1, the rear end of the guide plate 4 is opposite to the middle part of the phase change condenser 3, so as to form a flow channel on the front and rear sides of the guide plate 4 respectively; the guide plate 4 is arranged in a flat shape.

[0064] In this embodiment, the rear end of the guide plate 4 is arranged opposite to the middle part of the phase change condenser 3. The guide plate 4 can divide the gas passing through the phase change condenser 3 into two paths, one path is located on the front side of the guide plate 4, and the other path is located on the rear side of the guide plate 4. The guide plate 4 is arranged in a flat shape, that is, the thickness of the guide plate 4 is smaller than the length and width of the guide plate 4. Such an arrangement can reduce the speed difference between the two airflows, making the speeds of the two airflows as consistent as possible, thereby ensuring the uniformity of fresh air heat exchange.

[0065] As an optional solution, the guide plate 4 is arranged in an arc-shaped and flat shape, which can not only play a better guiding role, but also reduce the occupied space.

[0066] like Figures 1 to 6 As shown, based on any of the above embodiments, further, a first flow cavity 42 and a second flow cavity 43 independent of each other are provided in the guide plate 4, and the first flow cavity 42 and the second flow cavity 43 are both connected between the phase change evaporator 2 and the phase change condenser 3 to realize the circulation of the refrigerant between the phase change evaporator 2 and the phase change condenser 3.

[0067] Specifically, the first circulation cavity 42 is connected between the outlet of the phase change condenser 3 and the inlet of the phase change evaporator 2, and the second circulation cavity 43 is connected between the inlet of the phase change condenser 3 and the outlet of the phase change evaporator 2. The liquid refrigerant enters the first circulation cavity 42 from the outlet of the phase change condenser 3, and then enters the phase change evaporator 2 from the first circulation cavity 42 through the inlet of the phase change evaporator 2. After the liquid refrigerant absorbs heat in the phase change evaporator 2 and is converted into gas, the gaseous refrigerant enters the second circulation cavity 43 through the outlet of the phase change evaporator 2, and then enters the phase change condenser 3 through the inlet of the phase change condenser 3, thus realizing the refrigerant circulation. In this embodiment, the guide plate 4 can not only realize the gas diversion, but also realize the circulation and circulation of the refrigerant, and can replace a part of the refrigerant circulation pipeline, reduce the pipeline setting in the heat exchange cavity, and make the refrigeration section circulation structure between the phase change evaporator 2 and the phase change condenser 3 simple and compact.

[0068] It is understandable that the guide plate 4 is located in the second area 13 and the phase change evaporator 2 is located in the first area 12 , and the pipeline between the guide plate 4 and the phase change evaporator 2 needs to pass through the wall between the first area 12 and the second area 13 .

[0069] The guide plate 4 may be hollow, and a partition is arranged in the inner cavity of the guide plate 4 , so that the partition divides the inner cavity of the guide plate 4 into a first flow cavity 42 and a second flow cavity 43 .

[0070] The first flow cavity 42 and the second flow cavity 43 may be arranged side by side in the width direction of the guide plate 4 (the width direction of the guide plate 4 is consistent with the width direction of the shell 1 ).

[0071] As an alternative, Figure 3 and Figure 4 As shown, in the thickness direction of the guide plate 4, the first circulation cavity 42 and the second circulation cavity 43 are arranged side by side, and it can also be understood that the first circulation cavity 42 and the second circulation cavity 43 are arranged up and down. With such an arrangement, the area of ​​the plate surface of the guide plate 4 corresponding to the first circulation cavity 42 and the area of ​​the plate surface corresponding to the second circulation cavity 43 can both reach the maximum, thereby maximizing the effective heat exchange area between the airflow and the refrigerant in the first heat exchange cavity and / or maximizing the effective heat exchange area between the airflow and the refrigerant in the second heat cavity.

[0072] For example: the first circulation cavity 42 is located above the second circulation cavity 43. When the rear end of the guide plate 4 is opposite to the rear side of the phase change condenser 3 in the thickness direction of the shell 1, when the airflow flows through the front side plate surface 45 of the guide plate 4 (when the guide plate 4 is tilted, the front side plate surface 45 of the guide plate 4 is also its upper side plate surface), the gas can exchange heat with the liquid refrigerant in the first circulation cavity 42 on the upper side plate surface of the guide plate 4, further reducing the temperature of the liquid refrigerant, thereby increasing the temperature difference between the liquid refrigerant and the fresh air, improving the heat exchange effect, and the temperature of the fresh air is further increased. When airflow channels are formed on both the front and rear sides of the guide plate 4 in the thickness direction of the shell 1, the fresh air flow on the upper side exchanges heat with the liquid refrigerant in the first circulation cavity 42, and the fresh air flow on the lower side exchanges heat with the gaseous refrigerant in the second circulation cavity 43, and the temperature of both fresh air can be increased.

[0073] The cross-sectional area of ​​the first circulation cavity 42 may be the same as the cross-sectional area of ​​the second circulation cavity 43. The cross-sectional area of ​​the first circulation cavity 42 may be the same as or different from the cross-sectional area of ​​the second circulation cavity 43. For example, the ratio of the thickness of the first circulation cavity 42 to the thickness of the second circulation cavity 43 is in the range of 2:1-4:3 (for example, 4:3, 3:2, 9:5 or 2:1).

[0074] On the basis of the above embodiments, further, a first inlet and a first outlet are provided on the guide plate 4; a first partition plate is provided in the first flow cavity 42, and the first partition plate divides the first flow cavity 42 into a plurality of first diversion cavities arranged in sequence in the width direction of the guide plate 4 and / or in the thickness direction of the guide plate 4 (that is, a plurality of first diversion cavities are provided in the thickness direction of the guide plate 4, or a plurality of first diversion cavities are provided in the width direction of the guide plate 4, or a plurality of first diversion cavities are provided in both the thickness direction and the width direction of the guide plate 4); the plurality of first diversion cavities are all connected to the first inlet and the first outlet.

[0075] A second inlet and a second outlet are provided on the guide plate 4; a second partition plate is provided in the second flow chamber 43, and the second partition plate divides the second flow chamber 43 (44) into a plurality of second diversion chambers arranged in sequence in the width direction of the guide plate 4 or in the thickness direction of the guide plate 4 (that is, a plurality of second diversion chambers are provided in the thickness direction of the guide plate 4, or a plurality of second diversion chambers are provided in the width direction of the guide plate 4, or a plurality of second diversion chambers are provided in both the thickness direction and the width direction of the guide plate 4); the plurality of second diversion chambers are all connected to the second inlet and the second outlet.

[0076] like Figures 2 to 6 As shown, based on the above embodiment, further, in the thickness direction of the guide plate 4, at least on the front side plate surface 45 of the guide plate 4, fins 44 are provided. The provision of fins 44 can achieve air flow turbulence, make the gas temperature more uniform, and further improve the heat exchange efficiency.

[0077] The fins 44 may be provided only on the front side plate surface 45. The fins 44 may also be provided on both the front side plate surface 45 and the rear side plate surface 46.

[0078] The fins 44 may be a protrusion structure such as a dot-shaped protrusion, a strip-shaped protrusion, etc., or a concave structure such as a dot-shaped concave, a strip-shaped concave, etc.

[0079] It should be noted that a filling port 47 is provided on the guide plate 4, and the filling port 47 can be communicated with the first circulation cavity 42, can be communicated with the second circulation cavity 43, or can be communicated with both the first circulation cavity 42 and the second circulation cavity 43, and refrigerant can be added through the filling port 47. Of course, if necessary, the refrigerant in the phase change condenser 3 and the phase change evaporator 2 can also be discharged.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present invention and forming different embodiments.

Claims

1. An integrated range hood system, comprising: The housing (1) has an oil fume suction channel, and the housing (1) is provided with an oil fume inlet and an oil fume outlet, and the oil fume inlet and the oil fume outlet are both in fluid communication with the oil fume suction channel; The shell (1) further comprises a heat exchange chamber (11) inside, and the shell (1) is provided with a fresh air inlet (14) for communicating with the outside and an air supply port for communicating with the inside of the room, and the fresh air inlet (14) and the air supply port are both in fluid communication with the heat exchange chamber (11); The heat exchange chamber (11) comprises a first region (12) and a second region (13) which are independent of each other; a phase change evaporator (2) is arranged in the first region (12), and a phase change condenser (3) is arranged in the second region (13); Features: The oil fume suction channel is located in the first area (12) and is not connected to the heat exchange chamber (11); in the height direction of the shell (1), the phase change condenser (3) is higher than the phase change evaporator (2); Also included are: A guide plate (4) is provided in the second area (13); the guide plate (4) is arranged on the air flow path between the fresh air inlet (14) and the air supply port; and along the flow direction of the fluid, the guide plate (4) is located downstream of the phase change condenser (3).

2. The integrated range hood system according to claim 1, characterized in that: The air supply port is opened on the front side of the shell (1), and the fresh air inlet (14) is opened on the top of the shell (1); An air supply fan (5) is also provided in the heat exchange chamber (11), and an air outlet end of the air supply fan (5) is connected to the air supply port; The guide plate (4) extends forward and backward, and the rear end of the guide plate (4) is a windward end (41), and the front end of the guide plate (4) is opposite to the air inlet end of the air supply fan (5).

3. The integrated range hood system according to claim 2, characterized in that: The phase change condenser (3) is arranged adjacent to the fresh air inlet (14), and the guide plate (4) is at least partially located below the phase change condenser (3).

4. The integrated range hood system according to claim 3, characterized in that: The windward surface of the phase change condenser (3) is arranged opposite to the fresh air inlet (14), and the projection of the phase change condenser (3) on the plane where the fresh air inlet (14) is located can cover the fresh air inlet (14).

5. The integrated range hood system according to claim 3, characterized in that: The guide plate (4) is in an arc-shaped structure with two ends bent toward the same side, and the guide plate (4) is tilted forward from top to bottom as a whole.

6. The integrated range hood system according to any one of claims 1 to 5, characterized in that: In the thickness direction of the shell (1), the rear end of the guide plate (4) is opposite to the rear side of the phase change condenser (3).

7. The integrated range hood system according to any one of claims 1 to 5, characterized in that: In the thickness direction of the shell (1), the rear end of the guide plate (4) is opposite to the middle part of the phase change condenser (3), so as to form a flow channel on the front side and the rear side of the guide plate (4) respectively; The guide plate (4) is arranged in a flat shape.

8. The integrated range hood system according to claim 1, characterized in that: Also includes: The circulation pipe (6) is arranged in the heat exchange cavity (11), and the interior of the circulation pipe (6) is hollow to form the oil fume absorption channel.

9. The integrated range hood system according to claim 1, characterized in that: The guide plate (4) is provided with a first circulation cavity (42) and a second circulation cavity (43) which are independent of each other, and the first circulation cavity (42) and the second circulation cavity (43) are both connected between the phase change evaporator (2) and the phase change condenser (3) to realize the circulation of the refrigerant between the phase change evaporator (2) and the phase change condenser (3).

10. The integrated range hood system according to claim 9, characterized in that: In the thickness direction of the guide plate (4), the first flow cavity (42) and the second flow cavity (43) are arranged side by side.

11. The integrated range hood system according to claim 10, characterized in that: The ratio of the thickness of the first circulation cavity (42) to the thickness of the second circulation cavity (43) is in the range of 4:3-2:

1.

12. The integrated range hood system according to claim 9, characterized in that: In the thickness direction of the guide plate (4), fins (44) are provided at least on the front side plate surface (45) of the guide plate (4).

Images